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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 2482. Отображено 100.
03-01-2013 дата публикации

Tool holder for a cutting tool and sleeve for a tool holder

Номер: US20130001896A1
Автор: Josef Konrad Herud
Принадлежит: Kennametal Inc

A tool holder for a cutting tool having a tool shank includes a receptacle which extends in an axial direction and a sleeve disposed in the receptacle. The sleeve includes a tool receptacle structured to at least partially receive the tool shank and a blocking element that projects radially into the tool receptacle. The axial positioning of the sleeve is adjustable with respect to the receptacle.

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Номер записи: 1
28-03-2013 дата публикации

SECURING DEVICE FOR SECURING A CHUCK ON A ROTATING SPINDLE

Номер: US20130075984A1
Автор: Holstein Alexander, Schraeder Philipp
Принадлежит: SCHUNK GMBH & CO. KG SPANN- UND GREIFTECHNIK

The invention concerns a securing device for securing a chuck, in particular a power-operated chuck, on a rotating spindle of a machine, wherein a rotating element and at least one chucking-slide assembly are provided in a main body in such a way that, when the rotating element turns, the chucking-slide assemblies change their radial position such that, in a chucking position, they force the chuck against the securing device in the axial direction. 115-. (canceled)16. A securing device for securing a power-operable chuck on a rotating spindle of a machine , the securing device comprising: a rotary member and at least one chucking slide provided in a body in such a way that , when the rotary member is rotated , the at least one chucking slide changes its radial position , so that , in a chucking position , the at least one chucking slide loads the chuck in an axial direction.17. The securing device as claimed in claim 16 , wherein the power-operable chuck comprises chuck jaws claim 16 , a tension adapter motionally coupled to the chuck jaws claim 16 , and a tension tube coupleable to the tension adapter and provided on the machine side claim 16 , wherein claim 16 , in a release position the at least one chucking slide actuates coupling portions of the tension adapter or the tension tube in such a way that the tension adapter can be removed from the tension tube.18. The securing device as claimed in claim 17 , wherein the body includes a chuck reception portion claim 17 , and claim 17 , in a locking position remote from the release position claim 17 , the at least one chucking slide engages into the chuck reception portion for locking the chuck.19. The securing device as claimed in claim 16 , wherein the body includes centering means for centering the chuck.20. The securing device as claimed in claim 16 , further comprising claim 16 , a control means to rotate the rotary member claim 16 , the control means motionally coupled to the rotary member and displaceable ...

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Номер записи: 2
02-05-2013 дата публикации

Tool holder

Номер: US20130106067A1
Автор: Shogo Kitamura, Yoshihisa Hiroumi
Принадлежит: Showa Tool Co Ltd

A tool holder includes a holder body having a trunk and a grip tube, a pressure ring fitted around the grip tube, a nut for axially moving the pressure ring, and a sleeve defining a pressure chamber around the outer periphery thereof. The trunk is formed with cylinders in which pistons are inserted respectively. The cylinders communicate with the pressure chamber through a communication channel. Hydraulic fluid is sealed in the cylinders, the communication channel and the pressure chamber. When the nut is rotated, the pressure ring is axially moved, thus radially compressing the grip tube. Simultaneously, the pistons are pushed into the respective cylinders, thus increasing the pressure in the pressure chamber. As a result, both a first holding hole formed in the grip and a second holding hole formed in the sleeve decrease in diameter, so that a tool inserted in these holes are held in position.

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Номер записи: 3
01-08-2013 дата публикации

CHUCK

Номер: US20130193654A1
Автор: TAGLANG Johann
Принадлежит:

A chuck has a chuck body rotatable about an axis, a plurality of jaws radially displaceable on the body for gripping a workpiece, a chuck drive for rotating the chuck about the axis, and a center point axially shiftable in the body and axially engageable with the workpiece gripped by the jaws. An electric drive is coupled to the center point for axially shifting same. 1. A chuck comprising:a chuck body rotatable about an axis;a plurality of jaws radially displaceable on the body for gripping a workpiece;chuck drive means for rotating the chuck about the axis;a center point axially shiftable in the body and axially engageable with the workpiece gripped by the jaws; andan electric drive coupled to the center point for axially shifting same.2. The chuck defined in claim 1 , wherein the electric drive has a rotary output claim 1 , the chuck further comprising:a transmission between the rotary output and the center point for converting rotation of the output to axial displacement of the center point.3. The chuck defined in claim 2 , further comprising:an axially extending rod between the electric drive and the transmission.4. The chuck defined in claim 3 , further comprising:a spindle element between the transmission and the center point, the center point being detachably mounted on the spindle element.5. The chuck defined in claim 4 , further comprising:an elastic element between the spindle element and the center point.6. The chuck defined in claim 3 , further comprising:a holder in the chuck body rotatably supporting the rod.7. The chuck defined in claim 3 , further comprising:a planetary transmission between the rotary output and the rod.8. The chuck defined in claim 3 , further comprising:a threaded tube shaft carrying the chuck body, the chuck drive means being an electrical motor connected to the tube shaft.9. The chuck defined in claim 8 , further comprising:a harmonic drive between the motor of the chuck drive means and the tube shaft.10. The chuck defined in ...

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Номер записи: 4
07-11-2013 дата публикации

HYDRO-EXPANSION CHUCK

Номер: US20130292913A1
Автор: TEUSCH Bruno
Принадлежит:

The invention relates to a hydraulic expansion chuck () with a hydraulic expansion mechanism () that is integrated into a chuck body () and exhibits an expansion bushing () with a continuous cylindrical interior wall, and to a reducing bushing () arranged in the expansion bushing () for accommodating a shank tool (W), in particular a tap drill. According to the invention, the outer circumference of the reducing bushing () is positively connected with the chuck body () in a torque-proof manner, and its inner circumference is designed to be positively connected with the shank tool (W) in a torque-proof manner. 1. A hydraulic expansion chuck with a hydraulic expansion mechanism that is integrated into a chuck body and exhibits an expansion bushing with a continuous cylindrical interior wall , and a reducing bushing arranged in the expansion bushing for accommodating a shank tool , in particular a tap drill , characterized in thatthe outer circumference of the reducing bushing is positively connected with the chuck body in a torque-proof manner, and its inner circumference is designed to be positively connected with the shank tool in a torque-proof manner.2. The hydraulic expansion chuck according to claim 1 , characterized in that the positive connection between the reducing bushing and chuck body is axially restricted to a longitudinal end section of the reducing bushing claim 1 , in particular the inner one.3. The hydraulic expansion chuck according to claim 1 , characterized in that the inner longitudinal end section has a smaller outer diameter by comparison to the axially outer longitudinal end section and a central longitudinal section lying between the inner and outer longitudinal end section.4. The hydraulic expansion chuck according to claim 1 , characterized in that the reducing bushing is an outer polygonal profile claim 1 , preferably an outer two-edge profile claim 1 , which is accommodated in an inner polygonal profile claim 1 , preferably an inner two- ...

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Номер записи: 5
05-12-2013 дата публикации

Work-holding chuck with quick-release jaws

Номер: US20130320638A1
Автор: Douglas L. Roush, Thomas H. Dejonghe, Thomas M. Grobbel
Принадлежит: Forkardt Inc

A system, in certain embodiments, includes a wedge-lock coupling configured to connect a jaw to an actuator arm of a chuck. The wedge-lock coupling includes a wedge portion having a path of travel between a release position and a lock position, and a locking direction along the path of travel gradually wedges the wedge portion between the actuator arm and the jaw.

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Номер записи: 6
02-01-2014 дата публикации

POWER OPERATED CHUCK

Номер: US20140001712A1
Автор: Deininger Harald, Helm Peter
Принадлежит:

A chuck assembly for supporting cylindrically shaped workpieces to be machined at their ends, the assembly comprising 1. A power-operated chuck for supporting cylindrically shaped workpieces which are to be machined by means of a machine tool in the areas of their free ends , the chuck comprising:a chuck body having a passage opening extending into its lengthways axis in order to accommodate a workpiece,a driving means for producing an actuation force, which is absorbed by at least one actuating pin in an axially movable mounting in the chuck body,a guide hole disposed in said chuck body, the guide hole being angled in a direction of a free end of the workpiece to be machined, and an actuating pin inserted therein, andat least three centring jaws, each mounted in a guide groove provided in the chuck body, and mounted so as to move radially in the direction of the workpiece, each of which interacts in a driving arrangement with one of the actuating pins,whereinan anti-friction bearing in the form of a roller is provided on an end of the driving means facing the actuating pin, a contact surface is provided on the free end of the actuating pin and extending at right angles to the lengthways axis of the chuck body, the contact surface and the roller interacting such that the actuation forces of the driving means are transferred from the roller, or the plain bearing, onto the contact surface of the actuating pin, in an axial direction, and simultaneously a relative movement vectored at right angles to the lengthways axis of the chuck body is released between the contact surface of the actuating pin and the roller of the anti-friction bearing.2. The power-operated chuck in accordance with claim 1 , whereinthe driving means is formed by at least two advance pistons and clamping pistons mounted one inside another in a telescopic arrangement, and the clamping piston is axially moveable relative to the advance piston in order to generate the clamping force.3. The power- ...

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Номер записи: 7
02-01-2014 дата публикации

GRIPPER WITH EMERGENCY RELEASE

Номер: US20140001713A1
Автор: HANGLEITER Eugen, MILLER Klaus, SCHENK Peter
Принадлежит:

A gripper for use in combination with a pin has a body having an axially open cavity in which the pin is engageable. Jaws in the cavity are radially displaceable between an inner holding position bearing radially inwardly on and gripping the pin and an outer release position in which the pin can be removed axially from the cavity. An actuating element in the body is engageable with the jaws and shiftable between end positions corresponding to the inner and outer positions of the jaws. An actuator connected to the actuating element can move it from one of the end positions into the other of the end positions. An externally accessible connecting or operating member on the chuck body is connected through an emergency release with the jaws for moving the jaws into the outer release position as the result of connection to or operation of the member. 1. A gripper for use in combination with a pin , the gripper comprising:a body extending along a body axis and having an axially open cavity in which the pin is engageable;jaws in the cavity, spaced about the axis, and radially displaceable between an inner holding position bearing radially inwardly on and gripping the pin and an outer release position in which the pin can be removed axially from the cavity;an actuating element in the body, engageable with the jaws, and shiftable between end positions corresponding to the inner and outer positions of the jaws;an actuator connected to the actuating element and energizeable to move it from one of the end positions into the other of the end positions;an externally accessible connecting or operating member on the chuck body; andan emergency release operatively connected between the member and the jaws for moving the jaws into the outer release position as the result of connection to or operation of the member.2. The gripper defined in claim 1 , wherein the member is directly connected to the jaws.3. The gripper defined in claim 1 , wherein the member is connected indirectly ...

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Номер записи: 8
07-01-2016 дата публикации

INDEXING CHUCK

Номер: US20160001376A1
Автор: Deininger Harald, Maurer Eckhard
Принадлежит:

The invention relates to an indexing chuck (), comprising a chuck body (), in which an accommodating opening () is incorporated; comprising a pivoting ring () inserted in the accommodating opening () of the chuck body (), on which pivoting ring at least three clamping jaws () that can be advanced radially perpendicularly to the longitudinal axis () of the chuck body () are supported; comprising an advancing device (), which is inserted into the pivoting ring () and by means of which the clamping jaws () can be moved synchronously; comprising two pivot pins (), which are supported in the chuck body () and which form a pivot axis (), wherein the advancing device () of the at least three clamping jaws () is formed by a synchronizing ring (), which is supported so as to be movable parallel to the longitudinal axis () of the chuck body () in the pivoting ring (), a driving surface () extending at an angle to the longitudinal axis () of the chuck body () is fastened to the synchronizing ring () in the region of the respective clamping jaw (), and a contact surface () is provided on the respective clamping jaw (), which contact surface interacts with the driving surface () of the synchronizing ring () in such a way that the clamping jaws () are moved radially out of the pivoting ring (). The present invention relates to an indexing chuck according to the pre-characterising clause of Patent Claim .Chucks have been familiar for decades and are used, amongst other purposes, for holding sleeves, i.e. rotationally symmetrical workpieces, in a fixed location on machine tools so that an internal thread can be worked into them, the sleeves being subsequently used as connection and sealing elements in gas or oil pipelines. The internal threads to be manufactured are self-sealing, which means that the production of such threads requires a high level of precision.The larger the external diameter that is to be selected for such sleeves, the larger the internal diameter with which a ...

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Номер записи: 9
03-01-2019 дата публикации

HYDRAULIC EXPANDING CHUCK

Номер: US20190001420A1
Автор: Matheis Klaus, TEUSCH Bruno
Принадлежит: Guehring KG

The invention relates to a hydraulic expanding chuck for gripping a tool, for example a drill or a milling tool, comprising: a clamping part having an expansion sleeve having a central receiving opening for receiving and clamping the tool; and a connection part, in particular having a HSK connection. According to the invention, the expansion sleeve has at least two pressure chambers, which are designed to run around the central receiving opening, which are arranged at an axial distance relative to one another, and which can bulge when the tool received in the central receiving opening is subjected to fluid pressure. The at least two pressure chambers are connected to one another by a fluid channel. 1. A hydraulic expanding chuck for clamping a tool for example a drill bit or a milling cutter comprising:a clamping part with an expanding bush, which comprises a centric receiving opening for receiving and clamping the tool, anda connecting part, in particular with an HSK connection, characterized in thatthe expanding bush comprises at least two pressure chambers, which are circularly formed about the centric receiving opening, are arranged at an axial distance from one another and when subjected to a pressure, can bulge out against the tool received in the centric receiving opening, andthe at least two pressure chambers are connected with one another by at least one passage that is not formed circularly.2. The hydraulic expanding chuck according to claim 1 , wherein the passage is arranged axially.3. The hydraulic expanding chuck according to claim 1 , wherein the expanding bush comprises more than two chambers and/or multiple passages.4. The hydraulic expanding chuck according to claim 1 , wherein the clamping part and/or the connecting part are/is produced by a 3D-printed part.5. The hydraulic expanding chuck according to claim 1 , wherein at least one part of the hydraulic expanding chuck is produced by a 3D-print.6. The hydraulic expanding chuck according to claim ...

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Номер записи: 10
03-01-2019 дата публикации

ADAPTER SLEEVE

Номер: US20190001421A1
Автор: Herud Josef Konrad, Paul Marcus
Принадлежит:

An improved adapter sleeve is submitted which has a shank for insertion into a toolholder for a machine tool, wherein a tool socket for holding a tool is formed in the shank, wherein a number of slots are disposed along the shank so that the shank can be compressed during clamping, wherein a cutting head is formed which is arranged on a front side (F) of the shank. In one embodiment, the cutting head has an insert seat for a cutting insert. 1. An adapter sleeve comprising a shank for insertion into a toolholder of a machine tool , wherein a tool socket is formed in the shank for holding a tool and wherein a number of slots are disposed along the shank so that the shank can be compressed during clamping , characterized in that a cutting head is formed which is arranged on a front end of the shank.2. The adapter sleeve according to claim 1 , characterized in that the slots extend into the cutting head.3. The adapter sleeve according to claim 1 , characterized in that the cutting head has a cutting edge for additional material machining.4. The adapter sleeve according to claim 1 , characterized in that the cutting head has for additional material machining an insert seat to which a cutting insert can be attached.5. The adapter sleeve according to claim 1 , characterized in that the slots extend in the longitudinal direction at most as far as an insert seat or as far as a cutting edge of the cutting head.6. The adapter sleeve according to claim 1 , characterized in that the cutting head at the front end has a conical shape and has a conical face for creating a counterbore hole when material is being machined.7. The adapter sleeve according to claim 1 , characterized in that the shank and the cutting head are arranged one behind the other in a longitudinal direction and the slots each extend in the longitudinal direction.8. The adapter sleeve according to claim 1 , characterized in that the slots extend in the longitudinal direction no more than partially into the ...

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Номер записи: 11
03-01-2019 дата публикации

SENSOR MODULE AND TOOL HOLDER FOR A CUTTING TOOL

Номер: US20190001456A1
Автор: KALHORI Vahid, KARLSSON Robin
Принадлежит:

A sensor module for a tool holder for a cutting tool, such that when the sensor module is arranged to the tool holder having a cutting tool connected thereto, an axial portion of the cutting tool is positionable in a predefined rest position with respect to the sensor module. The sensor module includes at least one position sensor, wherein, when the sensor module is arranged to the tool holder having a cutting tool connected thereto, the position sensor is located radially spaced from the axial portion of the cutting tool for measuring deflection of the cutting tool with respect to the rest position. The disclosure further relates to a tool holder, a cutting tool, a cutting assembly, and a method for measuring deflection of a cutting tool. 1. A sensor module for a tool holder for a cutting tool , wherein , when the sensor module is arranged to the tool holder having a cutting tool connected thereto , an axial portion of the cutting tool is positionable in a predefined rest position with respect to the sensor module , the sensor module comprising at least one position sensor , wherein , when the sensor module is arranged to the tool holder having a cutting tool connected thereto , the position sensor is located radially spaced from the axial portion of the cutting tool for measuring deflection of the cutting tool with respect to the predefined rest position.2. The sensor module according to claim 1 , wherein the at least one position sensor is arranged to measure one or more of: radial deflection claim 1 , by sensing the radial distance to the axial portion of the cutting tool claim 1 , rotational deflection claim 1 , by sensing tangential movement of the axial portion of the cutting tool claim 1 , and axial deflection by sensing axial movement of the axial portion of the cutting tool.3. The sensor module according to claim 2 , wherein two or more position sensors are arranged to measure at least the radial deflection claim 2 , wherein the position sensors are spaced ...

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Номер записи: 12
20-01-2022 дата публикации

DRIVING ADAPTER

Номер: US20220016718A1
Автор: CHEN Kuo-Lung
Принадлежит:

A driving adapter which is configured to be applied to a driving head of a rotary tool is provided. The driving adapter includes: a main body, including a socket portion, an insertion portion connected with the socket portion and a projection connected with the insertion portion in an axial direction, the socket portion including a connection hole which is quadrangular and extends along the axial direction, the insertion portion being a quadrangular post and extending along the axial direction, a diametric dimension of the insertion portion being different from a diametric dimension of the connection hole, the projection including an annular groove around the axial direction; an elastic retainer, being non-closed, disposed within and around the annular groove; and a cushion, disposed within the annular groove, being radially abuttable against and between the projection and the elastic retainer. 1. A driving adapter , configured to be applied to a driving head of a rotary tool , the driving adapter including:a main body, including a socket portion, an insertion portion connected with the socket portion and a projection connected with the insertion portion in an axial direction, the socket portion including a connection hole which is quadrangular and extends along the axial direction, the connection hole being configured to be sleeved around the driving head of the rotary tool, the insertion portion being a quadrangular post and extending along the axial direction, a diametric dimension of the insertion portion being different from a diametric dimension of the connection hole, the insertion portion being configured to be assembled with a driving tool, the projection including an annular groove around the axial direction;an elastic retainer, being non-closed, disposed within and around the annular groove; anda cushion, disposed within the annular groove, being radially abuttable against and between the projection and the elastic retainer.2. The driving adapter of claim ...

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Номер записи: 13
14-01-2016 дата публикации

CHUCK AND CLAMP WITH QUICK CHANGE FUNCTION

Номер: US20160008894A1
Автор: DERHEIM Waldemar
Принадлежит: Roehm GmbH

A chuck with a chuck body having a guide opening and an actuating element, and with at least one interchangeable clamp that can be inserted into the guide opening. The clamp has associated therewith a rotary disk with a blocking element that secures the rotary disk against rotation relative to the chuck body during insertion of the clamp into the guide opening. This makes it possible that, upon a rotation of the clamp about the longitudinal axis in the guide opening, a segment can be displaced outward toward the chuck body by the rotation relative to the rotary disk, via which the clamp is detachably secured on the chuck body. A clamp with a clamp body, a pivot body located in the clamp body, and a chucking element is also provided. The clamp has, at the opposite end of the clamping element, a locking unit that carries the pivot body. 1. A chuck comprising:a chuck body having a guide opening and an actuating element;at least one interchangeable clamp insertable into the guide opening;a rotary disk associated with the clamp; anda blocking element that secures the rotary disk against rotation relative to the chuck body during insertion of the clamp into the guide opening,wherein, upon a rotation of the clamp about the longitudinal axis in the guide opening, a segment is displaced outward toward the chuck body by the rotation relative to the rotary disk for detachable securing of the clamp on the chuck body.2. The chuck according to claim 1 , wherein the chuck body has a radially formed blocking element receptacle for the blocking element projecting laterally from the rotary disk.3. The chuck according to claim 1 , wherein the segment and the rotary disk have a bearing element coupling them claim 1 , wherein the clamp has a cover with a guide slot claim 1 , and wherein the segment has a guide that is moved in the guide slot during a rotational motion of the clamp.4. The chuck according to claim 1 , wherein the segment is a latch in the form of a segment of a reference ...

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Номер записи: 14
14-01-2021 дата публикации

HAND FOR EXCHANGING CLAWS OF A CHUCK, METHOD FOR AUTOMATICALLY EXCHANGING CLAWS OF A CHUCK, AND SYSTEM FOR AUTOMATICALLY EXCHANGING CLAWS

Номер: US20210008644A1
Автор: KAWAWAKI Kazuya, NAGAOSA Hiroshi
Принадлежит: Howa Machinery, Ltd.

A hand for exchanging claws of a chuck is configured to be fitted to a transfer device so as to attach and detach a claw to and from a fitting groove provided in the chuck of a machine tool. The hand for exchanging claws includes: a hand part capable of grasping the claw; and a compliance device that fits the hand part to the transfer device, and allows relative displacement between the transfer device and the hand part. 1. A hand for exchanging claws of a chuck , the hand for exchanging claws being fitted to a transfer device so as to attach and detach a claw to and from a fitting groove provided in the chuck of a machine tool , the hand for exchanging claws comprising:a hand part capable of grasping the claw; anda compliance device that fits the hand part to the transfer device, and allows relative displacement between the transfer device and the hand part.2. The hand for exchanging claws according to claim 1 , further comprising a claw lock confirmation device that confirms a locked/unlocked state of the claw by a lock mechanism provided on the chuck claim 1 , when the claw is detached from the fitting groove.3. The hand for exchanging claws according to claim 2 , whereinthe lock mechanism comprises a displacement member that is displaced depending on the locked/unlocked state of the claw, andthe claw lock confirmation device includes a sensor that detects a position of the displacement member.4. The hand for exchanging claws according to claim 3 , wherein the sensor is of a contact type.5. A method of automatically exchanging claws of a chuck comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'a step of fitting the hand for exchanging claws according to to the transfer device, and'}a step of attaching and detaching the claw to and from the fitting groove provided in the chuck of the machine tool.6. A system for automatically exchanging claws of a chuck claim 3 , comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the hand for exchanging claws ...

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Номер записи: 15
15-01-2015 дата публикации

CHUCKING DEVICE AND CHUCKING METHOD FOR MACHINE TOOL

Номер: US20150013145A1
Автор: FUJIWARA Atsushi, NISHINO Junji
Принадлежит: SMC Corporation

In a chucking device and a chucking method for a machine tool which grip a workpiece that serves as a target object to be processed by the machine tool, a first cylinder and a second cylinder are controlled based on the position of a piston of the first cylinder detected by a length measuring sensor, and the position of a piston of the second cylinder detected by a length measuring sensor. In this manner, the workpiece is gripped by respective gripping members at a predetermined position, i.e., the axial center, of a chuck main body. 1. A chucking device for a machine tool for gripping a workpiece as a target object to be processed by the machine tool , comprising:a chuck main body;a first cylinder attached to the chuck main body and in which a first piston rod connected to a first piston is displaced in a direction toward the workpiece to thereby position the workpiece;a second cylinder attached to the chuck main body and in which a second piston rod connected to a second piston is displaced in a direction toward the workpiece to thereby press the positioned workpiece;a first position detecting sensor that detects a position of the first piston;a second position detecting sensor that detects a position of the second piston; anda control mechanism that controls the first cylinder and the second cylinder based on the position of the first piston and the position of the second piston, which have been detected, such that the workpiece is gripped at a predetermined position of the chuck main body by the first piston rod and the second piston rod.2. The chucking device for a machine tool according to claim 1 , the control mechanism further comprising:a first cylinder controller that displaces the first piston rod by controlling the first cylinder; anda second cylinder controller that displaces the second piston rod by controlling the second cylinder,wherein:the first piston rod is displaced toward an axial center of the chuck main body in accordance with a control ...

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Номер записи: 16
29-01-2015 дата публикации

TOOL HOLDER AND METHOD FOR PRODUCING A TOOL RECEIVING PORTION FOR SUCH A TOOL HOLDER

Номер: US20150028548A1
Автор: HAIMER Franz
Принадлежит:

A tool holder with a main part, a deformable receiving portion for clamping a tool, and at least one blocking element which is designed to engage into a corresponding counter element on the tool in order to prevent the tool from moving axially out of the tool holder. The at least one blocking element is integrally formed with the receiving portion. A clamping system having such a tool holder and a method for producing a receiving portion for such a tool holder are also described. 1. Tool holder with a main part , a deformable receiving portion for clamping a tool and at least one blocking element that is formed to prevent axial slippage of the tool from the tool holder by engaging with a corresponding counter element on the tool , wherein the at least one blocking element is formed integrally with the receiving portion.2. Tool holder according to claim 1 , wherein the receiving portion is an expansion sleeve deployed in a receiving opening of the main part and subject to external pressure with hydraulic fluid claim 1 , on the inner side of which is deployed the at least one blocking element.3. Tool holder according to claim 1 , wherein the receiving portion is formed as a contracting chuck realized integrally with the main part claim 1 , on the inside of which is deployed the at least one blocking element.4. Tool holder according to claim 1 , wherein the receiving portion is formed as a reducing sleeve deployed within a contracting chuck claim 1 , on the inside of which is deployed the at least one blocking element.5. Tool holder according to claim 1 , wherein the receiving portion is formed as a collet chuck that is deployed within a receiving opening of the main part and can be deformed by a clamping element claim 1 , on the inside of which is deployed the at least one blocking element.6. Tool holder according to claim 1 , wherein the receiving portion is formed as a clamping region deployed on a front part of the main part claim 1 , that can be deformed by a ...

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Номер записи: 17
04-02-2016 дата публикации

HYDRAULIC CHUCK

Номер: US20160031015A1
Автор: Doi Masayuki
Принадлежит:

For enabling accurate and efficient cutting work on a narrow area, in a hydraulic chuck configured such that a pressurization fluid pressurized by a push member (b) is fed through a pressurization passage () to a pressurization chamber () to reduce a diameter of an elastic deformable part (), the hydraulic chuck includes a body () having a flange accommodating part () opening at a small-diameter portion at a tip end of the body and a sleeve accommodating part () opening in a bottom face of the flange accommodating part (), and a sleeve () having a hole () in which a gripped object is inserted, the sleeve being engageable and insertable with/to the sleeve accommodating part () from a leading end side of the flange accommodating part (), the sleeve () forming the pressurization chamber () reserving therein an amount of the pressurization fluid between this sleeve () and the sleeve accommodating part (), the sleeve () having a flange () engageable with the flange accommodating part (). 1. A hydraulic chuck configured such that a pressurization fluid pressurized by a push member is fed through a pressurization passage to a pressurization chamber to reduce a diameter of an elastic deformable part , the hydraulic chuck comprising:a body having a flange accommodating part opening at a small-diameter portion at a tip end of the body and a sleeve accommodating part opening with a smaller diameter than the flange accommodating part in a bottom face of the flange accommodating part;a sleeve having a hole in which a gripped object is inserted, the sleeve being engageable and insertable with/to the sleeve accommodating part from a leading end side of the flange accommodating part, the sleeve forming the pressurization chamber reserving therein an amount of the pressurization fluid between this sleeve and the sleeve accommodating part, the sleeve having a flange engageable with the flange accommodating part;wherein the hydraulic chuck further comprises a coolant feeding passage ...

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Номер записи: 18
09-02-2017 дата публикации

TOOL HOLDER ASSEMBLIES AND METHODS OF USING THE SAME

Номер: US20170036276A1
Автор: CARISS Lance
Принадлежит:

In one aspect tool holder assemblies are described herein. Such tool holder assemblies can employ outer and inner spring-like members. For example, a tool holder assembly described herein comprises a drawbar having an outer diameter surface and an inner diameter surface defining an interior of the drawbar. The drawbar is movable or actuatable along a longitudinal axis between a locked position and an unlocked position. The tool holder assembly can further comprise a first spring-like member positioned around the outer diameter surface of the drawbar and a second spring-like member positioned in the drawbar interior. 1. A tool holder assembly comprising:a drawbar having an outer diameter surface and an inner diameter surface defining an interior of the drawbar, the drawbar being actuatable along a longitudinal axis between a locked position and an unlocked position; anda first spring-like member positioned around the outer diameter surface of the drawbar and a second spring-like member positioned in the drawbar interior.2. The tool holder assembly of further comprising a plurality of slots in the outer diameter surface.3. The tool holder assembly of further comprising a canister plate having a plurality of projections for engaging the slots in the outer diameter surface.4. The tool holder assembly of claim 3 , wherein actuating the drawbar towards the unlocked position compresses the second spring-like member against the projections on the interior of the drawbar.5. The tool holder assembly of further comprising a canister plate claim 1 , wherein actuating the drawbar towards the unlocked position compresses the first spring-like member against the canister plate around the outer diameter surface.6. The tool holder assembly of claim 1 , wherein the drawbar further comprises a rod positioned in the drawbar interior.7. The tool holder assembly of claim 6 , wherein the second spring-like member is disposed around the rod.8. The tool holder of claim 1 , wherein the ...

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Номер записи: 19
12-02-2015 дата публикации

CHUCK

Номер: US20150042049A1
Автор: Marquart Jürgen
Принадлежит:

A chuck comprising a chuck body having on one end two guide grooves extending in radial directions, a clamping jaw in each guide groove, a wedge rod drivingly connected with a clamping jaw, the wedge rod being movably mounted in the chuck body, and an actuation piston arranged centrally in the chuck body and in a driving connection with the wedge rods, to provide automatic and independent lubrication of the clamping jaw and the guide groove during each advance movement of the clamping jaws. 1. A chuck comprising a chuck body having disposed on one end at least two guide grooves running in a radial direction , a clamping jaw inserted into each of the guide grooves , a wedge rod allocated to each clamping jaw , and in a driven connection therewith via helical gearing , wherein the wedge rod is mounted in the chuck body in a selected one of a movable arrangement , and a wedge hook coupling , and an actuation piston arranged centrally in the chuck body and in a driving active connection with the wedge rods or the wedge hook coupling ,whereina high-pressure pump is arranged in a chamber provided in the chuck body, a lubricant is filled in the chamber, a lubricant line in the chuck body extends from the chamber of the high-pressure pump and to a branch from which at least one lubricating line branches off, each lubricating line emerging in a different position in the guide grooves, and the high-pressure pump is adapted to be activated by advance movement of the corresponding wedge rod or wedge hook coupling.2. The chuck in accordance with claim 1 ,whereina plurality of line sections are embedded in the chuck body, and a feed line extends from the outside the chuck body to a reservoir in the chuck body for accommodating the lubricant, and a feed line extending from the reservoir is disposed in the chuck body and emerges in the chamber of the high-pressure pump.3. The chuck in accordance with claim 2 ,whereina feed pump adapted to which establish a feed pressure is provided ...

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Номер записи: 20
07-02-2019 дата публикации

Hydraulic Chuck

Номер: US20190039150A1
Автор: Wu Hsuan-Lung
Принадлежит:

A hydraulic chuck includes a chuck body, a fixed seat, a rotary seat and a plurality of flexible seal members. The fixed seat is fixedly mounted to the chuck body. The rotary seat is rotatably mounted to the fixed seat and cooperates with the fixed seat, to define a gap therebetween. Each of the seal members has a first annular segment fixedly mounted to the fixed seat, a neck segment extending from the first annular segment and through the gap, and a second annular segment connected to an end of the neck segment distal from the first annular segment, and disposed adjacent to the rotary seat. 1. A hydraulic chuck adapted to grip at least one workpiece , comprising:a chuck body;a fixed seat fixedly mounted to said chuck body, and having a side surface;a rotary seat mounted to said fixed seat and rotatable relative to said fixed seat about a central axis, said rotary seat having a side surface that faces toward said side surface of said fixed seat, said side surface of said fixed seat and said side surface of said rotary seat cooperatively defining a gap therebetween that permits pressurized oil to flow therethrough;a plurality of flexible seal members each being centered at the central axis and each having a first annular segment that is fixedly mounted to said fixed seat, a neck segment that extends from said first annular segment and through said gap, and a second annular segment that is connected to an end of said neck segment distal from said first annular segment, that is disposed adjacent to said rotary seat and that cooperated with said first annular segment and said neck segment to define at least one oil groove thereamong, said second annular segments of at least one adjacent pair of said seal members being pushed to be in contact with said rotary seat when the pressurized oil is introduced into said gap, said second annular segments of said seal members being spaced apart from said rotary seat when the pressurized oil is ceased to be introduced into said ...

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Номер записи: 21
06-02-2020 дата публикации

MATERIAL TRANSFERRING AND POSITIONING DEVICE FOR WHEEL MACHINING CENTER

Номер: US20200038965A1
Автор: LI Shujuan, Liu Weidong, Wang Jing, XIE Liguang, ZHANG Na
Принадлежит: CITIC Dicastal CO., LTD

The present application provides a material transferring and positioning device for a wheel machining center, which includes a base plate, a base, a first bearing, a first shaft sleeve, a hydraulic cylinder brake, a rotary cylinder, a cap and so on. The application may meet the positioning requirement of the wheel machining center, and has the advantages of simple structure, convenient manufacture, stable performance, high positioning precision and simple operation, so that it is very suitable for automatic mass production. 1. A material transferring and positioning device for a wheel machining center comprising a base plate , a base , a first bearing , a first shaft sleeve , a hydraulic cylinder brake , a rotary cylinder , a cap , a second shaft sleeve , a second bearing , a sleeve , contacts , first linear bearings , springs , a synchronous cam , an end cap , a rotating shaft , a conical support , guide shafts , a bearing seat , second linear bearings , a mount , a connecting plate , a mounting plate and a cylinder , the material transferring and positioning device for a wheel machining center is provided with a high-precision centering mechanism and a circumferentially automatic adjusting mechanism;in the high-precision centering mechanism, the hydraulic cylinder brake, the rotary cylinder, the sleeve and the second shaft sleeve are installed on the first shaft sleeve; the second bearing and the rotating shaft are enclosed in the second shaft sleeve by the end cap, and two ends of the rotating shaft are respectively connected to output shaft of the rotary cylinder and the synchronous cam; the three or more first linear bearings are uniformly installed in side wall of the sleeve; three or more uniform curved surfaces are provided in side wall of the synchronous cam; outer end of each of the three or more contacts is provided with one of the springs and the first linear bearings, and inner ends of the three or more contacts are respectively connected to the same ...

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Номер записи: 22
25-02-2016 дата публикации

ROBOTIC TOOL CHANGER WITH TOOL STAND DECOUPLE POWER SUPPLY

Номер: US20160052146A1
Автор: Berrocal William G., Manning Mack Earl
Принадлежит:

A robotic tool changer ensures inherently safe operation by separating power sources for the “couple” and “decouple” operations of its coupling mechanism. The power for the decouple operation is available only when an attached robotic tool is safely disposed in its tool stand. Once the robotic tool leaves the tool stand, there is no power supplied to the coupling mechanism of the robotic tool changer to decouple the robotic tool from a robot arm. Accordingly, it is impossible for the robotic tool to inadvertently become disengaged from the robot arm—even if software were to erroneously assert a DECOUPLE signal, or otherwise initiate a decouple operation. Furthermore, since the design is inherently safe, neither interlock circuits, the redundancy of such circuits, nor the extensive and complex monitoring circuits necessary to ensure their proper operation, are necessary. 1. A robotic tool changer , comprising:a master unit assembly operative to connect to a robot;a tool unit assembly operative to connect to a robotic tool;a coupling mechanism disposed in one of the master and tool unit assemblies operative to selectively couple the master and tool unit assemblies together;wherein the coupling mechanism requires a first source of power to couple and a separate, second source of power decouple, and wherein the robotic tool changer receives the second power from a tool stand only when an attached robotic tool is disposed in the tool stand.2. The tool changer of claim 1 , wherein the coupling mechanism is pneumatically actuated claim 1 , and wherein the tool changer receives pneumatic fluid from the tool stand to drive the coupling mechanism to the decoupled state.3. The tool changer of claim 2 , wherein the coupling mechanism comprises a pneumatically-actuated piston operative to couple the tool changer when pneumatic fluid is applied to a couple chamber of the piston via a couple port claim 2 , and operative to decouple the tool changer when pneumatic fluid is applied ...

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Номер записи: 23
03-03-2016 дата публикации

SAFE ROBOTIC TOOL CHANGER

Номер: US20160059424A1
Автор: Manning Mack Earl, Norton Daniel Allen, Zachary Kyle
Принадлежит:

In an inherently safe robotic tool changer, a master unit couples to a tool unit via a first power source, and decouples from the tool unit using a separate, second power source. The second power source is only available when an attached tool is safely disposed in a tool stand. In embodiments where the first power source is not selectively applied, such as the constant bias provided by a spring, a detent mechanism maintains the master unit in a decoupled state when the master unit is removed from the tool unit. The detent mechanism allows the master unit to couple to a different tool unit upon physically abutting the new tool unit. 1. A master unit of a robotic tool changer , comprising:a coupling mechanism configured to place the master unit in one of a coupled state and a decoupled state, wherein the coupled state is associated with the master unit being securely coupled to a tool unit of the robotic tool changer and the decoupled state is associated with the master unit being decoupled from a tool unit;wherein the master unit is operative to assume the decoupled state only in response to a tool attached to a coupled tool unit being disposed in a tool stand; andwherein the master unit is operative to remain in the decoupled state when decoupled from a tool unit, and is operative to assume the coupled state only in response to physical contact with a tool unit.2. The master unit of claim 1 , wherein the coupling mechanism is further configured to include:a detent piston movably mounted in the coupling mechanism, biased towards a locked position, and configured to move to an unlocked position in response to contact with a tool unit; anda coupling piston movably mounted in the coupling mechanism and operationally coupled to the detent piston, wherein the coupling piston is moved toward a locked state by a first source of power, and is configured to receive a second source of power from a coupled tool unit when a tool attached to the tool unit is disposed in a tool ...

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Номер записи: 24
05-03-2015 дата публикации

COLLET ADAPTER

Номер: US20150061234A1
Автор: McCluskey Pat, Napflin Hansruedi, Savanur Sateesh
Принадлежит:

A collet adaptor including a work piece clamp mechanism The collet adaptor is rotatable about a first axis A and the work piece clamp mechanism is mounted within the collet adaptor for rotation with the collect adaptor The clamp mechanism is also mounted for movement laterally to the first axis A during rotation of the collet adaptor The clamp mechanism can also be mounted within the collect adaptor for rotational movement lateral to the first axis A during rotation of the collect adaptor 1. A collet adapter including a workpiece clamp , the collet adapter being rotatable about a first axis , the workpiece clamp mechanism of the collet adapter being mounted within the collet adapter for rotation with the collet adapter and for movement laterally relative to the first axis during rotation of the collet adapter.2. A collet adapter according to claim 1 , the clamp mechanism being mounted within the collet adapter for rotational movement lateral to the first axis of rotation of the collet adapter.3. A collet adapter according to or claim 1 , the clamp mechanism being mounted within the collet adapter for linear movement along a first lateral axis which is perpendicular to the first axis of rotation of the collet adapter and for linear movement along a second lateral axis which is perpendicular to the first axis of rotation of the collet adapter and which is at an angle of more than 0° and up to 90° to the first lateral axis of the collet.4. A collet adapter according to when dependent on claim 1 , the clamp mechanism being rotatable about at least one of the first and second lateral axes.5. A collet adapter according to when dependent on claim 1 , the clamp mechanism being rotatable about each of the first and second lateral axes.6. A collet adapter according to any one of to claim 1 , the first and second lateral axes being at 90° to each other.7. A collet adapter according to any one of to claim 1 , the first and second lateral axes being in the same plane.8. A collet ...

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Номер записи: 25
02-03-2017 дата публикации

Clamping mechanism for hydraulic work support

Номер: US20170057030A1
Автор: Aaron Vernon Luthi, Gregory A. Yotz, Michael Dean Swan, Tyler Wayne Anliker
Принадлежит: VEKTEK LLC

A work support and method of clamping a translatable component of a hydraulic work support system. The work support may include a rigid, hollow slotted collet, a sleeve, and the translatable component, such as a plunger or rod. Hydraulic fluid may be pumped into an inlet of the hydraulic work support system to hydraulically actuate the translatable component outward from a first retracted position to a second extended position. The hydraulic fluid may further be pumped to the sleeve at a sufficient pressure that the sleeve presses against the collet. The collet responds thereto by flexing into contact with the translatable component, thus holding the translatable component in the second extended position. The slots in the collet allow for flexure even when using a thicker material with stronger column strength.

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Номер записи: 26
10-03-2016 дата публикации

TOOL ATTACHMENT AND THROUGH SPINDLE COOLANT SYSTEMS FOR USE WITH ULTRASONIC MACHINING MODULES

Номер: US20160067790A1
Автор: HAY Jacob, SHORT Matthew A.
Принадлежит: EDISON WELDING INSTITUTE, INC.

An ultrasonic machining module that includes an ultrasonic transducer, wherein the ultrasonic transducer is adapted to receive a machining tool and a vibration-isolating housing adapted to be both compatible with a machining system and to receive the ultrasonic transducer therein, wherein the housing further includes at least one modification for isolating all vibrations generated by the ultrasonic transducer when the device is in operation except axial vibrations transmitted to the machining tool, thereby preventing unwanted vibrations from traveling backward or upward into the machining system. The ultrasonic machining module may also include an acoustically tuned collet and/or an acoustically tuned system for delivering coolant fluid through the module to a machining tool or target substrate. 1) A device for use in a machining system , comprising: (i) a front mass;', '(ii) a back mass;', '(iii) a plurality of piezoelectric ceramics positioned between the front mass and the back mass;', '(iv) at least one source of electricity connected to the piezoelectric ceramics;', '(v) a compression member passing through the front mass, back mass, and ceramics, wherein the compression member is operative to apply compressive force to the ceramics; and', '(vi) a collet adapted to receive a machining tool; and, '(a) an ultrasonic transducer having a known acoustic frequency, wherein the ultrasonic transducer further includes(b) a vibration-isolating housing adapted to be both compatible with a machining system and to receive the ultrasonic transducer therein, wherein the housing further includes at least one modification for isolating all vibrations generated by the ultrasonic transducer when the device is in operation except axial vibrations transmitted to the machining tool, thereby preventing unwanted vibration from traveling backward or upward into the machining system.2) The device of claim 1 , wherein the at least one modification for isolating all vibrations generated ...

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Номер записи: 27
27-02-2020 дата публикации

Chuck mechanism

Номер: US20200061720A1
Автор: Tamio Nishimiya
Принадлежит: Kitagawa Iron Works Co Ltd

A chuck mechanism of the present invention includes multiple master jaws placed movably in a radial direction on a front surface of a chuck body, and top jaws each detachably attached to front surfaces of the top jaws. Each master jaw and each top jaw have a raised portion and a recessed portion engageable with each other. Each of the raised and recessed portions has conical surfaces formed by part of a conical body. Each top jaw has a gripping surface formed by part of a circular columnar body. Upon work gripping, the center axes of the conical surfaces on a gripping side among the conical surfaces of each master jaw and each top jaw and the center axis of the gripping surface are all coincident with a rotation axis of the chuck body.

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Номер записи: 28
29-05-2014 дата публикации

HYDRAULIC EXPANSION CHUCK AND METHOD FOR PRODUCING SUCH AN EXPANSION CHUCK

Номер: US20140145406A1
Автор: Herud Josef Konrad
Принадлежит:

A hydraulic expansion chuck includes a basic body, an expansion bush which is received in the basic body and defines a reception space for a tool to be clamped, and a pressure chamber which is delimited between the expansion bush and the basic body. A securing pin is provided, which extends through the basic body and the expansion bush into the reception space. A method for producing a hydraulic expansion chuck is disclosed. First, a basic body is provided with a blind hole, into which an internal thread is cut. Then, an expansion bush is soldered into the basic body. Finally, an orifice is made at the bottom of the blind hole and extends through the material of the expansion bush into a tool reception space which is delimited in the expansion bush. 1. A hydraulic expansion chuck with a basic body , with an expansion bush which is received in the basic body and defines a reception space for a tool to be clamped , and with a pressure chamber which is delimited between the expansion bush and the basic body , wherein a securing pin is provided , which extends through the basic body and the expansion bush into the reception space.2. The expansion chuck as claimed in claim 1 , wherein a plurality of securing pins are provided claim 1 , which are arranged so as to be spaced apart from one another uniformly in the circumferential direction.3. The expansion chuck as claimed in claim 1 , wherein the expansion bush has a solder portion claim 1 , in the region of which it is soldered to the basic body claim 1 , and wherein the securing pin extends through the solder portion.4. The expansion chuck as claimed in claim 1 , wherein the securing pin has a threaded portion and a pin portion claim 1 , the diameter of the pin portion being smaller than the diameter of the threaded portion.5. A method for producing a hydraulic expansion chuck by means of the following steps:providing a basic body with a blind hole, into which an internal thread is cut,soldering an expansion bush into ...

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Номер записи: 29
02-04-2015 дата публикации

ROTARY TOOL

Номер: US20150090471A1
Автор: Tao Shichun
Принадлежит:

A rotary tool for driving drill bits or screw bits. The rotary tool includes a main body, a main shaft, a chuck, and a locking assembly for locking the chuck at a fixed position relative to the main shaft in the axial direction. The locking assembly is arranged fixedly relative to the main body in the circumferential direction of the main shaft and it has a portion that contacted with the chuck when locking the chuck. 1. A rotary tool , comprising:a motor;a transmission assembly driven by the motor;a main shaft driven to rotate by the transmission assembly;a gearbox for accommodating the transmission assembly;a housing for accommodating the motor, a portion of the gearbox and a portion of the main shaft;a quick installing chuck capable of being installed on the main shaft and synchronously rotated with the main shaft;a clutch assembly for adjusting a torque output by the main shaft; anda locking assembly for locking the quick installing chuck to the main shaft;wherein the gearbox comprises a front end portion arranged outside of the housing and having a shaft hole for accommodating the main shaft;wherein the main shaft has a torque groove in a front end thereof; a chuck body;', 'a transmission shank capable of being inserted in the torque groove of the main shaft; and', 'a locking bush surrounding the transmission shank and having a locking groove in the outer wall thereof;, 'wherein the quick installing chuck comprises 'a clutch cup arranged to accommodate the front end portion of the gearbox and rotate about the axis of the main shaft;', 'wherein the clutch assembly comprises an installing member arranged to accommodate a portion of the locking bush and having at least one positioning hole;', 'a switching member fixed to the clutch cup; and', 'a moving member arranged in the positioning hole of the installing member and capable of being partly embedded in the locking groove of the locking bush; and, 'wherein the locking assembly compriseswherein the installing ...

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Номер записи: 30
07-04-2016 дата публикации

MAIN SPINDLE DEVICE OF MACHINE TOOL

Номер: US20160096227A1
Автор: Arai Yoshihiro, FURUHATA Tetsuro, HORI Nobumitsu, NAKASHIMA Kunimichi, TSUZUKI Toshiyuki
Принадлежит: JTEKT CORPORATION

A main spindle device includes: a main spindle; a rod accommodated in the main spindle, the rod being capable of moving to an unclamp position in a direction toward the first end, and when the main spindle is holding a tool, being capable of moving to a clamp position in a direction toward a second end; a biasing unit that biases the rod in the direction toward the second end with respect to the main spindle and that biases the rod to the clamp position when a collet is holding the tool; and a biasing force detector that detects a biasing force of the biasing unit which biases the rod in the direction toward the second end after the rod is moved in the direction toward the first end with respect to the main spindle to the unclamp position by force larger than the biasing force of the biasing unit. 1. A main spindle device of a machine tool , comprising:a main spindle supported so as to be rotatable relative to a housing and having a first end to which a tool is attached;a rod accommodated in the main spindle so as to be coaxial therewith and capable of reciprocating in an axial direction with respect to the main spindle, the rod being capable of moving to an unclamp position where the tool is released in a direction toward the first end, and when the main spindle is holding the tool, being capable of moving to a clamp position where the tool is clamped in a direction toward a second end of the spindle, which is an opposite direction to the direction toward the first end;a collet that is attached to a first end of the rod, that holds the tool when the rod moves in the direction toward the second end with respect to the main spindle, and that releases the tool when the rod moves in the direction toward the first end with respect to the main spindle;a biasing unit that biases the rod in the direction toward the second end with respect to the main spindle and that biases the rod to the clamp position when the collet is holding the tool; anda biasing force detector that ...

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Номер записи: 31
01-04-2021 дата публикации

JIG SYSTEM WITH HYDRAULIC EXPANSION CLAMP MECHANISM

Номер: US20210094104A1
Автор: Huang Kai-En, Kouda Yoshio
Принадлежит: Jabil Circuit (Singapore) Pte. Ltd.

A jig system with hydraulic expansion clamp mechanism for clamping a work piece includes a plate that is manufactured integrally as one piece using three-dimensional printing. The plate is formed with an expansion chamber that is defined by a surrounding wall for allowing the work piece to extend therethrough, an inlet that is fluidly connected to a hydraulic source that supplies pressurized fluid, and a passage that is fluidly connected to the inlet and the expansion chamber. When pressurized fluid is supplied into the passage from the inlet, the expansion chamber is caused to expand and move the surrounding wail inwardly into contact with the work piece. 1. A jig system with hydraulic expansion clamp mechanism for clamping a work piece , comprising a plate that is manufactured integrally as one piece using three-dimensional (3D) printing; at least one expansion chamber that is defined by a surrounding wail for allowing the work piece to extend therethrough,', 'an inlet that is fluidly connected to a hydraulic source that supplies pressurized fluid, and', 'a passage that is fluidly connected to the inlet and said expansion chamber;, 'wherein said plate is formed with'}wherein when pressurized fluid is supplied into the passage from the inlet, said expansion chamber is caused to expand and move said surrounding wall inwardly into contact with the work piece.2. The jig system of claim 1 , wherein said plate is formed with a through hole for allowing the work piece to extend therethrough.3. The jig system of claim 2 , wherein said through hole is defined by said surrounding wall claim 2 , and said expansion chamber is adjacent to said surrounding wall.4. The jig system of claim 1 , wherein said surrounding wail is cylinder-shaped.5. The jig system of claim 4 , wherein said surrounding wall is formed with a uniform thickness.6. The jig system of claim 1 , wherein said expansion chamber is cylinder-shaped and surrounds said surrounding wall.7. The jig system of claim 1 ...

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Номер записи: 32
13-04-2017 дата публикации

CHUCK ADAPTED FOR AUTOMATED COUPLING

Номер: US20170100780A1
Автор: Tiefenböck Herbert, Tiefenböck Wolfgang
Принадлежит: EV Group GmbH

A chuck for clamping workpieces or tools in a clamping space with a clamping force (F). The chuck includes at least two chuck jaws movable in translation along one clamping plane (E) in the direction of one center Z of the clamping space and a gear train located at least largely within the chuck for transfer of a driving torque of a drive motor, which can be coupled to the gear train by coupling means of the gear train, to the chuck jaws for movement of the chuck jaws. The coupling means able to be coupled to a corresponding coupling connection of the drive motor. The movement from the maximum size of the clamping space to the minimum size of the clamping space is executed via the gear train from the drive motor. 1. A chuck for clamping of workpieces or tools in a clamping space with a clamping force , the chuck comprising:at least two chuck jaws moveable in translation along a clamping plane in a direction of a center of the clamping space, the clamping space defined by faces of the chuck jaws; anda torque transfer member including coupling means, said torque transfer member located at least largely within the chuck for transferring a driving torque produced by a drive member which can be coupled to the torque transfer member by the coupling means to drive movement of the chuck jaws,wherein the clamping space is changeable solely by operation of the drive member via the torque transfer member and movement of the at least two chucks, the at least two chuck jaws moveable between a position defining a clamping space having a maximum size and a position defining a clamping space having a minimum size,wherein the coupling means of the torque transfer member is able to be coupled by automation to a corresponding coupling connection of the drive member, andwherein an opening width between the at least two chuck jaws and/or the clamping force is directly adjustable by operation of the drive member.2. The chuck as claimed in claim 1 , wherein the torque transfer member is a ...

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Номер записи: 33
10-07-2014 дата публикации

Chucking device and chucking method

Номер: US20140189998A1
Автор: Haruhiko Kusunose
Принадлежит: Lasertec Corp

Provided are a chucking device having low dusting characteristics and high detergent properties and capable of vacuum-sucking even a substrate having a large warpage, and a chucking method using the same. A chucking device according to an aspect of the present invention vacuum-sucks and holds a wafer. The chucking device includes: a perforated plate having a plurality of through-holes and being mounted with a wafer, the through-holes penetrating through both sides of the perforated plate; a porous plate that supports a surface other than a mounting surface of the perforated plate, on which the wafer is mounted, transmits a vacuum state to the wafer through the plurality of through-holes, and has a pore to limit a flow rate; and a vacuum pump that exhausts an air through the pore of the porous plate.

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Номер записи: 34
30-04-2015 дата публикации

Modular tool retainer

Номер: US20150115549A1
Автор: Bruno Teusch
Принадлежит: Guehring KG

A modular tool retainer, comprising a main body extending along an axis of rotation and which is functionally divided into a shaft section for coupling to a machine tool spindle and a clamping section having a central accommodating bore for accommodating and clamping a cutting tool, which has a cutting head and at least one cutting edge, which is arranged concentrically to the main body and detachably fastened to the main body, and which is arranged at a predetermined axial and/or radial and/or angular position relative to the at least one cutting edge. The cutting head has a sleeve section, which extends the tool retainer and has a central accommodating bore arranged concentric to the central passage bore of the clamping section for accommodating and radially supporting a tool shaft part of the cutting tool protruding from the central accommodating bore of the clamping section.

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Номер записи: 35
10-07-2014 дата публикации

CHUCK RELATED ARRANGEMENT AND A METHOD FOR ASSEMBLING SAID ARRANGEMENT

Номер: US20140191479A1
Автор: SVENSSON Bo Karl Ragnar
Принадлежит:

A chuck-related arrangement having a main portion and chuck jaw portions coordinated with the main portion with associated clamping arrangements, wherein one surface of the main portion is provided with a plurality of tracks adapted to displaceably carry chuck jaw portions. Each one of, and/or a chosen number of, clamping arrangements, are individually to be secured to its element solidly secured to its basic chuck jaw portion exposing a rotational cooperation with an external chuck jaw portion over a central axis of rotation. Two or more of the external chuck jaw portions and their peripheral surfaces are formed as one or more recesses in order to cooperate opposed recesses to form clamping surfaces for a work piece and/or formed as one or more, the recesses intermediately oriented, radially extending elevations, causing cooperative elevations after a rotation to form direct clamping surfaces towards the work piece. 114-. (canceled)151113331111401011333404040301030303041044030403091304030403041049291a,eaef,g,haa,eh. A chuck-related arrangement (“a”) having a main portion () and chuck jaw portions coordinated to said main portion () with associated clamping arrangements ( , ′ , ″) , wherein one planar or flat surface () of said main portion is provided with a plurality of tracks () , two or more , adapted to displaceably carry said chuck jaw portions () , which by means () allotted in the main portion () are displaceably disposed in a direction towards and away from each other for having said chuck jaw portions in an assembled position clamp a workpiece (“A”) intended for processing and in an opposing position letting these chuck jaw portions release said workpiece (“A”) from its tightening position for removing the workpiece wherein each one of or a chosen number of selected chuck jaw related clamping arrangements ( , ′ , ″) is individually formed as two parts , a first part , as a base chuck jaw portion ( , ′ , ″) , with a thereto related , around a central axis ...

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Номер записи: 36
13-05-2021 дата публикации

CLAMPING APPARATUS

Номер: US20210138559A1
Автор: Rusch Uwe, Schneider Christoph
Принадлежит:

The invention relates to a clamping apparatus () for clamping a workpiece (), which is or is to be toothed and has an axis of rotation, onto a spindle, which can be rotationally driven and has a spindle axis defining an axial direction (A), with a clamping mechanism (), which converts an axial force (FA) transferred via a force transfer device () into a clamping force (Fg) directed radially to the spindle axis, wherein the force transfer device () has a first section () movably guided by a guide arrangement () in relation to a movement having an axial direction component, wherein the first section () is segmented into several transfer elements () spaced apart from one another in a circumferential direction. 11100. A clamping apparatus () for clamping a workpiece () , which is or is to be toothed and has an axis of rotation , onto a spindle , which can be rotationally driven and has a spindle axis defining an axial direction (A) ,{'b': 20', '10', '10', '12', '30, 'sub': a', 's, 'with a clamping mechanism (), which converts an axial force (F) transferred via a force transfer device () into a clamping force (F) directed radially to the spindle axis, wherein the force transfer device () has a first section () movably guided by a guide arrangement () in relation to a movement having an axial direction component,'}{'b': 12', '12', '12', '12', '12, 'i': a,', 'b,', 'c,', 'd, 'characterized in that the first section () is segmented into a plurality of transfer elements () spaced apart from one another in a circumferential direction (U).'}2130323212121212a,da,b,c,d. The clamping apparatus () according to claim 1 , in which the guide arrangement () has a plurality of guides () assigned to the transfer elements () and spaced apart in the circumferential direction (U).3132. The clamping apparatus () according to claim 2 , wherein at least one guide () is a three-point guide.41101412. The clamping apparatus () according to wherein the force transfer device () has a second section ...

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Номер записи: 37
03-05-2018 дата публикации

Chuck arrangement

Номер: US20180117682A1
Автор: Bo Karl Ragnar Svensson
Принадлежит: Bo Karl Ragnar Svensson

Backing and clamping chuck jaw part ( 110, 120 ), respectively, arranged to engage with each other such that respective contact surfaces ( 113, 123 ) a rearranged to come into contact with each other so as to together form a chuck jaw ( 100 ) for a chuck ( 10 ). The invention is characterised in that the backing chuck jaw part is manufactured from a harder metal material than a metal material from which the clamping chuck jaw part is manufactured, in that a the backing chuck jaw part comprises a convex structure ( 126 ), and in that the convex structure is arranged to engage with a corresponding concave structure ( 116 ) of the clamping chuck jaw part so that the said concave structure is permanently deformed as a result of an engagement between said structures resulting from the chuck jaw parts first being arranged in a contacting orientation and thereafter being pressed together into an engagement orientation, in which contact is established between said contact surfaces. The invention also relates to a chuck jaw, a chuck and a method.

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Номер записи: 38
25-08-2022 дата публикации

CONTROL METHOD FOR CHUCK DEVICE

Номер: US20220266351A1
Автор: Ishikawa Masayuki, KANAZAWA Takehiko, TSUCHIYA Gen, YAJIMA Hisashi
Принадлежит: SMC Corporation

A control method of controlling a chuck device in a drive system for driving the chuck device, comprising opening or closing fingers by opening a switching valve at a first degree of valve opening to supply the fluid to a first cylinder chamber of the chuck device and to discharge the fluid from a second cylinder chamber of the chuck device so that a piston moves in one direction, and stopping the fingers in an intermediate position between a fully open position and a fully closed position by opening the switching valve at a second degree of valve opening to stop supplying the fluid to the first cylinder chamber and to stop discharging the fluid from the second cylinder chamber when the axial position of the piston reaches a target position set in advance while the fingers are being opened or closed. 1. A control method of controlling a chuck device in a drive system for driving the chuck device , the chuck device including a piston displaceable in an axial direction under an effect of supply of fluid and a pair of fingers configured to be opened and closed according to the displacement of the piston , the drive system comprising a controller , a detection sensor configured to detect an axial position of the piston , and a switching valve configured to switch a state of supply of the fluid to the chuck device , wherein the switching valve is a servo valve whose degree of valve opening is controllable based on a control signal input from the controller , and an amount of displacement of the piston and an amount of opening and closing of the fingers are controlled by changing the degree of valve opening , the control method comprising the steps of:opening or closing the fingers by opening the switching valve at a first degree of valve opening to supply the fluid to a first cylinder chamber of the chuck device and to discharge the fluid from a second cylinder chamber of the chuck device so that the piston moves in one direction; andstopping the fingers in an ...

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Номер записи: 39
12-05-2016 дата публикации

Methods for making opthalmic lenses with an axis positioning system

Номер: US20160129650A1
Автор: John Leone
Принадлежит: CooperVision International Holding Co LP

Methods for making ophthalmic lenses are generally discussed herein with particular discussions extended to plastic injection molded ophthalmic lens molds that are machined or lens buttons located on the injection molds that are machined. The machine process can include setting a lens axis of the ophthalmic lens and machining a ballast that is aligned to a major axis of a toric zone.

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Номер записи: 40
11-05-2017 дата публикации

POSITIONING ASSEMBLY AND METHOD

Номер: US20170129021A1
Автор: ELFIZY Amr, LI Yuwen
Принадлежит:

A method for positioning a rotary part on a machining fixture adapted to hold the rotary part for a machining operation is described. The machining fixture has a center axis and a diaphragm with engaging segments affixed thereto and extending away therefrom. The method includes mounting the rotary part on the machining fixture concentrically about the center axis and adjacent to the engaging segments, and then applying an axial force in a direction substantially parallel to the center axis against the diaphragm. This elastically deforms the diaphragm and radially displaces the contact members of the engaging segments into frictional engagement with a circumferential surface of the rotary part. 1. A method for positioning a rotary part on a machining fixture adapted to hold the rotary part for a machining operation , the machining fixture having a center axis and a diaphragm with engaging segments affixed thereto and extending away therefrom , the method comprising:mounting the rotary part on the machining fixture concentrically about the center axis and adjacent to the engaging segments; andapplying an axial force in a direction substantially parallel to the center axis against the diaphragm to elastically deforming the diaphragm and radially displace contact members of the engaging segments into frictional engagement with a circumferential surface of the rotary part.2. The method as defined in claim 1 , wherein radially displacing the contact members includes radially displacing the contact members away from the center axis to frictionally engage an inner circumferential surface of the rotary part.3. The method as defined in claim 1 , wherein radially displacing the contact members includes radially displacing the contact members toward from the center axis to frictionally engage an outer circumferential surface of the rotary part.4. The method as defined in claim 1 , wherein applying the axial force includes axially displacing a force applicator against the ...

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Номер записи: 41
21-05-2015 дата публикации

ROTARY CHUCK

Номер: US20150139774A1
Автор: Daugherty Sean, Mantell Ryan, Plummer Jeffery, Tully Gerald
Принадлежит: Greenlee Textron Inc.

A rotary chuck includes a clamp assembly, a first drive mechanism for operating the clamp assembly to clamp an associated workpiece, a frame rotationally fixed to the clamp assembly, and a second drive mechanism for rotating the frame and the clamp assembly. The second drive mechanism can rotate the frame and the clamp assembly around 360 degrees. A pair of alignment springs are engaged with a mounting plate upon which the second drive mechanism is mounted. The mounting plate can pivot relative to a stable surface to which it is mounted, and the springs limit the pivotal movement. Each first and second drive mechanism includes a motor, and are connected to a microprocessor for operation of the respective motor. 1. A rotary chuck comprising:a clamp assembly for clamping an associated workpiece, said clamp assembly defining a centerline;a first drive mechanism for operating the clamp assembly to clamp the associated workpiece;a frame attached to said clamp assembly, said frame and said clamp assembly being rotationally fixed relative to each other; anda second drive mechanism for rotating said frame and said clamp assembly around said centerline relative to a ground surface.2. The rotary chuck of claim 1 , wherein said frame and said clamp assembly can be rotated around 360 degrees.3. The rotary chuck of claim 1 , wherein said second drive mechanism further rotates said first drive mechanism with said clamp assembly and frame.4. The rotary chuck of claim 3 , wherein said first drive mechanism claim 3 , said clamp assembly and said frame can be rotated around 360 degrees.5. The rotary chuck of claim 1 , further including a mounting plate to which said second drive mechanism is affixed claim 1 , said mounting plate having at least a pair of apertures therethrough through which fasteners can be mounted.6. The rotary chuck of claim 5 , wherein said apertures are elongated such that said fasteners can slide along said apertures.7. The rotary chuck of claim 6 , further ...

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Номер записи: 42
08-09-2022 дата публикации

SPINDLE LOCK FOR POWER TOOL

Номер: US20220281095A1
Автор: Abbott Jonathan E., Duncan Ian A., Spek Isabella A., Yue Brian J.
Принадлежит:

A power tool includes a housing, a motor supported by the housing, and an output spindle rotatably supported relative to the housing about an axis. The motor is operable to drive the output spindle about the axis. The power tool includes a spindle lock assembly between the motor and the output spindle. The spindle lock assembly is adjustable between an unlocked state in which the output spindle is rotatable relative to the housing about the axis and a locked state in which the output spindle is rotationally fixed relative to the housing. The spindle lock assembly includes a first resilient member, positioned between the housing and the output spindle. The first resilient member is configured to at least partially absorb a torque impulse from the output spindle when rotating in a first direction and when the spindle lock assembly transitions from the unlocked state to the locked state. 1. A power tool comprising:a housing;a motor supported by the housing;an output spindle rotatably supported relative to the housing about an axis, the motor operable to drive the output spindle about the axis; anda spindle lock assembly between the motor and the output spindle, the spindle lock assembly being adjustable between an unlocked state in which the output spindle is rotatable relative to the housing about the axis and a locked state in which the output spindle is rotationally fixed relative to the housing,wherein the spindle lock assembly includes a first resilient member, positioned between the housing and the output spindle, configured to at least partially absorb a torque impulse from the output spindle when rotating in a first direction, when the spindle lock assembly transitions from the unlocked state to the locked state.2. The power tool of claim 1 , wherein the spindle lock assembly includes a cam member coupled to the output spindle claim 1 , a housing ring coupled to the housing claim 1 , and a plurality of followers coupled between the cam member and the housing ...

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Номер записи: 43
10-06-2021 дата публикации

HYDROSTATICALLY ACTUATED WORKHOLDING APPARATUS

Номер: US20210170500A1
Автор: Bartolone John V.
Принадлежит:

A workholder with a sleeve carried by a body and providing at least in part a circumferentially continuous fluid chamber between them and at least two circumferentially spaced apart locators carried by the body axially over the sleeve and projecting radially of the sleeve. A pressurized fluid in the chamber can change the diameter of the sleeve to move the locators generally radially relative to the body into firm engagement with a workpiece so that it is carried by the workholder. The locators may be received in part in a collar received at least in part axially over the sleeve with a portion of each locator projecting radially of the collar. 1. A workholder apparatus comprising:a body;a circumferentially continuous sleeve carried by the body and at least in part defining a circumferentially continuous fluid chamber between the sleeve and the body;at least two circumferentially spaced apart locators carried by the body, received axially over the sleeve and projecting radially of the sleeve; andwherein a pressurized fluid in the chamber can change the diameter of the sleeve to move the locators generally radially relative to the body into firm engagement with a workpiece so that the workpiece is carried by the workholder apparatus.2. The apparatus of wherein the locators are disposed over the sleeve and are received in part in a collar which at least in part overlies the sleeve and a part of each locator extends radially outwardly of the collar for engagement with the workpiece when moved radially outward by expansion of the sleeve.3. The apparatus of which has at least three circumferentially spaced apart locators each having a base portion overlying a portion of the sleeve and a prominence projecting radially outward of the base claim 1 , and a collar having for each locator a recess in which the base of one locator is received and an opening from the recess to the exterior of the collar through which its prominence extends generally radially outwardly of an ...

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Номер записи: 44
04-06-2015 дата публикации

Adjustable heating mantle for a tool holder

Номер: US20150151366A1
Автор: Ching-Ting Chen
Принадлежит: Individual

An adjustable heating mantle for tool holder includes a mantle body, a positioning plate, an adjusting unit, a lid and a lever rod. The positioning plate is mounted on the top of the mantle body and has an assembling recess. The adjusting unit is mounted in the assembling recess and has two magnetic shielding boards, a sliding ring and two connecting rods. A lid covers a top face of the positioning plate and is mounted on the top of mantle body. A lever rod is inserted through the lid and mounted on one of the magnetic shielding boards. The two magnetic shielding boards are capable of being rotated synchronously by moving the lever rod for shielding magnetic force and fitting cutting tools of different diameters.

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Номер записи: 45
21-08-2014 дата публикации

CHUCK

Номер: US20140232072A1
Автор: Ayguen Hakki
Принадлежит:

A chuck for a power tool has a central receptacle, arranged in the body of the chuck, having a locating opening for axially inserting a shank-type tool. A reducing sleeve is arranged at least partly in the central receptacle, and a clamping device is provided for at least locally reducing the cross section of the central receptacle. A fixing device is provided which specifies a defined arrangement of the reducing sleeve in relation to the locating opening both with the chuck clamped and with the chuck unclamped. 117-. (canceled)18. A clamping chuck for a machine tool , comprising:a receptacle which is arranged in the body of the clamping chuck and which has a receiving opening for the axial insertion of a shank-type tool;a reducing sleeve arranged at least in sections in the receptacle;a clamping device for the at least local reduction of the cross section of the receptacle; anda fixing device which prescribes a defined arrangement of the reducing sleeve relative to the receiving opening both when the clamping chuck is clamped and also when the clamping chuck is not clamped.19. The clamping chuck as claimed in claim 18 , wherein claim 18 , in the defined arrangement of the reducing sleeve relative to receiving opening claim 18 , eccentricities of reducing sleeve and receiving opening or clamping chuck are coordinated with one another in compensatory fashion.20. The clamping chuck as claimed in claim 19 , further comprising:a marking, on the basis of which the arrangement in which the eccentricities are coordinated with one another are identifiable.21. The clamping chuck as claimed in claim 20 , wherein the marking is provided on the reducing sleeve.22. The clamping chuck as claimed in claim 18 , wherein the fixing device has an anti-twist securing device which limits a twisting motion of the reducing sleeve in the receiving opening.23. The clamping chuck as claimed in claim 22 , wherein the limitation of the twisting motion of the reducing sleeve in the receiving ...

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Номер записи: 46
31-05-2018 дата публикации

METHOD OF DETERMINING PULL-OUT OF A CUTTING TOOL AND A ROTATABLE TOOL HOLDER FOR A CUTTING TOOL

Номер: US20180147684A1
Автор: EKBACK Johan, ERIKSSON Peter
Принадлежит:

A method of determining pull-out of a cutting tool mounted in a rotatable tool holder includes the steps of rotating the tool holder and thus the cutting tool, machining a work piece with the rotating cutting tool, measuring an axial position of the cutting tool in the tool holder during machining by a position sensor in the tool holder, calculating an axial displacement from an initial position of the cutting tool by the measured axial position, and determining pull-out of the cutting tool when the axial displacement exceeds a threshold value. A rotatable tool holder for a cutting tool, a machine tool system including a rotatable tool holder and use of the tool holder and machine tool system is also provided. 1. A method of determining pull-out of a cutting tool mounted in a rotatable tool holder , the method comprising:rotating the tool holder and the cutting tool;machining a work piece with the rotating cutting tool;measuring an axial position of the cutting tool in the tool holder during machining, by a position sensor located in the tool holder;calculating an axial displacement from an initial position of the cutting tool by the measured axial position; anddetermining pull-out of the cutting tool when the axial displacement exceeds a threshold value.2. The method according to claim 1 , further comprising transmitting an output signal including axial position data during machining claim 1 , and receiving the output signal for calculation of the axial displacement.3. The method according to claim 1 , further comprising transmitting an output signal including axial displacement data during machining and receiving the output signal for determining pull-out of the cutting tool.4. The method according to claim 1 , further comprising transmitting an output signal including a pull-out signal when pull-out is determined.5. The method according to claim 3 , wherein the output signal is transmitted intermittently at a frequency of at least 1 Hz.6. The method according to ...

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Номер записи: 47
01-06-2017 дата публикации

ROBOT SYSTEM AND ROBOT

Номер: US20170151665A1
Автор: GOTO Yoshinobu, Takahashi Masaru, Yamamoto Sota
Принадлежит:

A robot system includes a robot including a hand including a plurality of finger sections and a work device in which the robot performs work. The work device includes a first rotating body, a second rotating body configured to rotate in association with rotation of the first rotating body, a grip section provided in the first rotating body, and a setting section provided in the second rotating body, a target object of the work performed by the robot being set on the setting section. The robot grips the grip section with the finger sections to rotate the first rotating body. 1. A robot system comprising:a robot including a hand including a plurality of finger sections; anda work device in which the robot performs work, wherein a first rotating body;', 'a second rotating body configured to rotate in association with rotation of the first rotating body;', 'a grip section provided in the first rotating body; and', 'a setting section provided in the second rotating body, a target object of the work performed by the robot being set on the setting section, and, 'the work device includesthe robot grips the grip section with the finger sections to rotate the first rotating body.2. The robot system according to claim 1 , whereinthe work device includes an annular driving member wound on the first rotating body and the second rotating body, andthe rotation of the first rotating body is transmitted to the second rotating body via the driving member.3. The robot system according to claim 2 , wherein the work device further includes:a first supporting table configured to rotatably support the first rotating body;a second supporting table configured to rotatably support the second rotating body and coupled to the first supporting table; andan adjusting mechanism capable of adjusting a distance between the first supporting table and the second supporting table.4. The robot system according to claim 1 , wherein a diameter of the first rotating body is smaller than a diameter of the ...

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Номер записи: 48
09-06-2016 дата публикации

SAFETY LOCK FOR LATHE CHUCK KEY

Номер: US20160158849A1
Автор: Coleman Micah A., Gardner Martin, Weber Charles
Принадлежит: JPW Industries Inc.

A lathe or other rotating machine includes a chuck for holding a work piece or tool. The chuck is operated between engaging and disengaging positions by rotating a chuck key that has been inserted into a key receiving opening in the chuck. A chuck key docking station on the machine includes a sensor to sense the presence or absence of the chuck key at the docking station. The sensor is connected to prevent operation of the machine at speed if the chuck key is not sensed in the chuck key docking station. 1. A rotating machine , comprising:a motor that is operable for rotational motion;a chuck connected for rotation by the motor, the chuck including grasping elements that are movable relative to a rotational center of the chuck, the chuck defining a key receiving opening;a chuck key having a portion that selectively engages into the key receiving opening, the chuck key being operable to move the grasping elements of the chuck;a chuck key docking station remote from the chuck; anda sensor disposed and operable to determine a presence of the chuck key in or at the chuck key docking station, the sensor being connected to prevent rotational operation of the chuck by the motor unless the sensor determines that the chuck key is present in or at the chuck key docking station.2. A rotating machine as claimed in claim 1 , further comprising:a housing enclosing the motor, the chuck key docking station being mounted on the housing.3. A rotating machine as claimed in claim 1 , wherein the sensor is selected from the group of sensors including a magnetic sensor claim 1 , an optical sensor claim 1 , an electrical sensor claim 1 , a wireless sensor claim 1 , an RFID (radio frequency identification) sensor claim 1 , and a contact sensor.4. A rotating machine as claimed in claim 3 , wherein the sensor is an RFID sensor and further comprising:an RFID tag in or on the check key, wherein the RFID tag uniquely identifies the chuck key, the sensor being operable to enable operation of the ...

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Номер записи: 49
07-06-2018 дата публикации

EXPANDING CLAMPING SLEEVE, TOOLHOLDER HAVING SUCH AN EXPANDING CLAMPING SLEEVE AND METHOD FOR CLAMPING A TOOL

Номер: US20180154454A1
Автор: EBERT Günter, Hacker Michael, Kunschir Sebastian
Принадлежит:

The invention relates to an expanding clamping sleeve for an expanding chuck having a first and a second bearing section, a clamping section that can grasp a tool, and a thrust section that is arranged between the clamping section and the first bearing section. The invention further relates to a toolholder having such an expanding clamping sleeve, wherein a contact surface is provided for a tool-side stop. The invention finally relates to a method for clamping a tool using an expanding chuck, in which, in a first step, a shaft of the tool is inserted into the expanding chuck, then the expanding chuck is subjected to pressure so that a clamping section of the expanding chuck clamps the tool shaft in the radial direction, and a thrust section of the expanding chuck displaces the tool shaft in the axial direction so that a tool-side stop is forced against a contact surface of a toolholder with an axial minimum clamping force. 1. An expanding clamping sleeve for an expanding chuck , having a first and a second bearing section as well as a clamping section that can grip a tool shaft , characterized by a thrust section that is arranged between the clamping section and the first bearing section.2. The expanding clamping sleeve according to claim 1 , characterized in that the thrust section claim 1 , seen in a cross-section claim 1 , has at least one leg extending obliquely to the central axis (M) of the clamping section.3. The expanding clamping sleeve according to claim 2 , characterized in that a plurality of obliquely arranged legs are provided.4. The expanding clamping sleeve according to claim 2 , characterized in that the thrust section has two legs that merge into one another and extend in opposite directions obliquely to the central axis (M) of the clamping section.5. The expanding clamping sleeve according to claim 4 , characterized in that the two legs define a bulge of the expanding clamping sleeve.6. The expanding clamping sleeve according to claim 4 , ...

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Номер записи: 50
24-06-2021 дата публикации

CHUCK AND METHOD FOR MANUFACTURING SAME

Номер: US20210187627A1
Автор: NISHIMIYA Tamio
Принадлежит: KITAGAWA IRON WORKS CO., LTD.

A chuck includes a plurality of master jaws that slide in the radial direction in the front surface of a body in conjunction with slide of a plunger . The body has a housing chamber communicating with a plurality of keyways . The plunger is fitted in the housing chamber . Each of the master jaws includes a narrower part and a wider part fitted into an associated one of the keyways , and a wedge connected to the plunger . The wider part has a flat wider sliding surface radially outside the wedge . Each of the keyways has a wider slid surface 1. A chuck including a body and a plurality of jaws , the plurality of jaws being positioned at a front surface of the body while supporting a workpiece with rotation axes of the chuck and the workpiece coinciding with each other , the chuck comprising:a plunger arranged inside the body with a center of the plunger coinciding with the rotation axes and configured to slide in an axial direction; anda plurality of master jaws each constituting one of the jaws and configured to slide in a radial direction in the front surface of the body in conjunction with the slide of the plunger,whereinthe body includes:a plurality of keyways arranged like rays at equal intervals in the front surface and having a transverse section having a substantially inverted T-shape toward front; anda housing chamber at a central portion of the body to communicate with the plurality of keyways, the plunger being fitted in the housing chamber,each of the master jaws includes:a narrower part fitted in a front portion of an associated one of the keyways and exposed to the front surface of the body;a wider part fitted in a rear portion of the associated one of the keyways and sliding along the associated one of the keyways; anda wedge protruding rearward from a radially inner end of the wider part and connected to the plunger, andthe wider part has a flat wider sliding surface in an entire region radially outside the wedge, and each of the keyways has a wider ...

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Номер записи: 51
14-06-2018 дата публикации

ACTUATOR FOR A POWER TOOL

Номер: US20180161887A1
Автор: Reed Ronal
Принадлежит: Think & Tinker Ltd.

An actuator for use with a power tool is disclosed. The power tool includes a spindle-chuck body defining a tool axis and a collet nut surrounding the tool axis and rotatable about the tool axis. The collet nut is coupled to the spindle-chuck body. The actuator comprises a holder positionable to engage the spindle-chuck body and an actuation assembly including a first member positioned to engage the collet nut when the holder engages the spindle-chuck body and a second member operatively coupled to the first member to rotate the first member about a first axis. The second member is rotatable about a second axis non-parallel to the first axis. 1. An actuator for use with a power tool having a spindle-chuck body defining a tool axis and a collet nut surrounding the tool axis and rotatable about the tool axis , the collet nut being coupled to the spindle-chuck body , the actuator comprising:a holder positionable to engage the chuck body; andan actuation assembly including a first member positioned to engage the collet nut when the holder engages the spindle-chuck body and a second member operatively coupled to the first member to rotate the first member about a first axis, and the second member being rotatable about a second axis non-parallel to the first axis.2. The actuator of claim 1 , wherein the holder includes an opening configured to receive the spindle-chuck body.3. The actuator of claim 1 , wherein the holder has a first planar engagement surface adapted to contact a second planar engagement surface of the chuck body to prevent rotation of the chuck body.4. The actuator of claim 1 , wherein the holder is configured to maintain a stationary position of the spindle-chuck body and the actuation assembly is configured to adjust a position of a collet operably coupled to the collet nut relative to the spindle-chuck body.5. The actuator of claim 1 , wherein the first axis is parallel to the tool axis and the second axis is perpendicular to the tool axis.6. The ...

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Номер записи: 52
29-09-2022 дата публикации

Systems, Devices, and/or Methods for Drilling

Номер: US20220305568A1
Автор: Cockrill Huston G.
Принадлежит:

Certain exemplary embodiments can provide a system comprising a machine tool, a centerable holder, and a drill. The machine tool comprises a spindle and a tool holder. The centerable holder is pointed at the spindle of the machine tool. The centerable holder defining a pair of horizontal adjusters and a pair of vertical adjusters. 1. A system comprising:a machine tool, the machine tool comprising a spindle and a tool holder, wherein the tool holder is sometimes not sufficiently centered on the spindle;a centerable holder, the centerable holder pointed at the spindle of the machine tool, the centerable holder defining a pair of horizontal adjusters and a pair of vertical adjusters, each of the pair of horizontal adjusters and the vertical adjusters comprising a threaded fastener, the centerable holder centered by a user via turning one or more threaded fasteners of the horizontal adjusters and the vertical adjusters; anda drill, the drill coupleable to the centerable holder, the drill centerable on an object held relative to the spindle via the centerable holder.2. The system of claim 1 , wherein:the machine tool is a lathe.3. The system of claim 1 , wherein:the centerable holder is coupled to a shank of the tool holder via a pair of fasteners; andthe centerable holder is coupled to the machine tool via clamping down on the shank in a slip bushing which holds the centerable holder in the tool holder of the machine tool.4. The system of claim 1 , wherein:the centerable holder is coupled to the machine tool via clamping down on a shank in a slip bushing which holds the centerable holder in the tool holder of the machine tool. The patent or application file contains at least one drawing executed in color. Copies of this patent or patent application publication with color drawings will be provided by the Office upon request and payment of the necessary fee. A wide variety of potential practical and useful embodiments will be more readily understood through the following ...

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Номер записи: 53
30-05-2019 дата публикации

Expansion sleeves and associated chucks

Номер: US20190160551A1
Автор: Ruy Frota De Souza
Принадлежит: Kennametal Inc

In one aspect, expansion sleeves for pressure-activated tool holder apparatus are described herein. An expansion sleeve, for example, comprises a first end, a second end and a longitudinal axis extending between the first end and the second end. A first set of fluid chambers are proximate the first end of the sleeve and a second set of fluid chambers are proximate the second end, wherein fluid channels extend along the longitudinal axis to connect radially offset fluid chambers of the first and second sets.

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Номер записи: 54
25-06-2015 дата публикации

Holder for a cutting tool, a cutting tool and a cutting insert

Номер: US20150174665A1
Автор: Anders Wretland, Tore Hagward
Принадлежит: GKN Aerospace Sweden AB

A holder for a cutting tool, comprising a body having a first channel for receiving a stein portion of the cutting tool. The body has a second channel intersecting with said first channel. The holder further comprises a plunger ( 13 ) to be inserted in the second channel, said plunger ( 13 ) having a third channel ( 14 ) the cross section of which at least partly overlaps with the cross section of the first channel when the plunger ( 13 ) is inserted into the body so as to enable the stem of the cutting tool to extend into the third channel ( 14 ) when the stem is inserted in the first channel. The holder ( 1 ) further comprises a mechanism ( 26 ) for locking the stem against movement relative to the body by means of the plunger. The invention furthermore relates to a cutting tool for use in such a holder and a cutting insert.

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Номер записи: 55
11-09-2014 дата публикации

CLAMPING APPARATUS FOR CUTTING TOOL

Номер: US20140252725A1
Автор: LI JUN-QI, Liu Qing, PENG YI-FENG
Принадлежит:

A clamping apparatus includes a clamping member, a cylinder assembly and a transmission assembly. The cylinder assembly includes a cylinder, a sealing head and a limiting member. The sealing head defines a gas channel connected to the inner of the cylinder. The limiting member includes a limiting portion fixed to the cylinder, which includes an inner surface having a frustoconical shape. The clamping member is received in the limiting member, and includes a frustoconical shape clamping portion. The transmission assembly includes a piston shaft, a piston and an elastic member. The piston and the elastic member are both received in the cylinder. The elastic member is resisted between the piston and the limiting member. One end of the piston shaft away from the piston is connected to the clamping portion. The clamping member defines a clamp hole in middle.

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Номер записи: 56
11-09-2014 дата публикации

WORK-HOLDING CHUCK WITH QUICK-RELEASE JAWS

Номер: US20140252728A1
Автор: DEJONGHE Thomas H., GROBBEL Thomas M., ROUSH Douglas L.
Принадлежит: FORKARDT INC.

A system, in certain embodiments, includes a wedge-lock coupling configured to connect a jaw to an actuator arm of a chuck. The wedge-lock coupling includes a wedge portion having a path of travel between a release position and a lock position, and a locking direction along the path of travel gradually wedges the wedge portion between the actuator arm and the jaw.

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Номер записи: 57
02-07-2015 дата публикации

Chuck for holding precision components

Номер: US20150183030A1
Автор: Marian Trocki, Sam Lawson
Принадлежит: Cummins Inc, Cummins Intellectual Property Inc

A chuck assembly comprising a mandrel portion including an extending member sized and shaped to hold a workpiece; and a piston including a bore receiving the extending member, the piston mounted for supported movement on and relative to the extending member, the piston moving between a first position and a second position, the first position providing for insertion and removal of the workpiece to and from the extending member, the second position causing gripping force to be applied to the workpiece in at least two locations that are spaced longitudinally along the workpiece to inhibit relative movement between the mandrel and the workpiece.

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Номер записи: 58
13-06-2019 дата публикации

Clamping device with hydraulic clamping

Номер: US20190176246A1
Автор: Ruediger Watzke
Принадлежит: Emuge Werk Richard Glimpel GmbH and Co KG Fabrik fuer Praezisionswerkzeuge

A clamping device for clamping a workpiece to a machine spindle includes at least one clamping bush which extends around a central axis and has at least one clamping surface for the workpiece and at least one clamping body. The clamping bush on a side remote from the clamping surface at least one support surface which extends about the central axis along a helical line. On a side facing, the clamping bush comprises at least one support surface which extends about the central axis along a helical line with a predefined pitch and is inclined at an angle of inclination to a direction axial to the central axis. The clamping body includes a hydraulic chamber in the interior of the clamping body. The clamping device also includes a displacement element, and at least one pressure generator. A clamping force is generatable between the clamping bush and workpiece.

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Номер записи: 59
05-07-2018 дата публикации

CHUCK MECHANISM, STAIR FORM MEMBER ATTACHED JAW AND MACHINE TOOL

Номер: US20180185929A1
Автор: ISHIKAWA Yoshiaki
Принадлежит: Synthe Tech Inc.

A stair form member attached jaw is installed with the stair form member provided at the bottom face of the soft jaw. The stair form member is held between a pair of grips in the jaw installing groove of the master jaw from both sides of the radial direction, thereby pulling the stair form member to the bottom direction of the jaw installing groove. The position of the radial direction of the soft jaw is determined by the engagement between the bottom face of the soft jaw and the upper serration faces of the master jaw; and the position of the soft jaw in the tangent line is determined by the close contact of the stair form member to the side face of the jaw installing groove. 1. A chuck mechanism holding a workpiece , comprising;a chuck main body,plurality of master jaws provided to an end face of said chuck main body, and each of said plurality of master jaws comprising a jaw installing groove extending in a radial direction of the end face of said chuck main body,plurality of stair form member attached jaws provided to each of said master jaws, each of said stair form member attached jaws comprising a jaw for holding said workpiece and a stair form member inserted in said jaw installing groove of said master jaw,pairs of grips inserted to each of said jaw installing grooves of said master jaws, each of said pair of grips holding said stair form member of said stair form member attached jaw from an inner diameter side and an outer diameter side of said jaw installing groove, andpositioning parts formed at upper parts of said master jaws and lower parts of said jaws to determine positions of said jaws at the end face of said chuck main body, whereinthe inner diameter side end face and the outer diameter side end face of said stair form member are formed with engaging faces, each of said engaging faces comprising an inclined face to a direction of an upper opening direction of said jaw installing groove when said stair form member is inserted to said jaw installing ...

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Номер записи: 60
06-07-2017 дата публикации

BIDIRECTIONAL ADJUSTING CUTTER HOLDER

Номер: US20170189970A1
Автор: Chen Ching-Ting
Принадлежит:

A cutter holder has a body, a collet fastening unit, a collet, a cutter, multiple concentricity adjusting units, and multiple straightness adjusting units. The collet fastening unit is assembled on the body. The collet is assembled on the collet fastening unit. The cutter is inserted into the collet. The body has a fastening flange which has multiple concentricity adjusting holes. The multiple concentricity adjusting units are respectively screwed in the multiple concentricity adjusting holes and abut against the collet fastening unit to correct the error of concentricity between the cutter and the body. The collet fastening unit has an assembling flange which has multiple straightness adjusting holes. The multiple straightness adjusting units are respectively screwed in the multiple straightness adjusting holes and abut against the body to correct the error of straightness between the body and the cutter. 1. A cutter holder comprising: two opposite ends; and', a flange body having an end face and a peripheral surface;', 'an assembling recess axially defined in the end face; and', 'multiple concentricity adjusting holes radially defined through the peripheral surface of the flange body at intervals and communicating with the assembling recess;, 'a fastening flange disposed at one of the ends of the body and having'}], 'a body having'} [ a main body having an axis and two opposite side faces; and', 'multiple straightness adjusting holes disposed around the axis of the main body and longitudinally defined through the main body;, 'an assembling flange having'}, 'a collet assembling section axially formed on and protruding from one of the side faces of the main body, and having an inner socket axially defined in the collet assembling section; and', a peripheral surface; and', 'multiple abutting faces corresponding in amount and position to the concentricity adjusting holes and formed on the peripheral surface of the body assembling section;, 'a body assembling section ...

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Номер записи: 61
30-07-2015 дата публикации

MACHINE TOOL

Номер: US20150209869A1
Автор: KUME Takayuki
Принадлежит: MITSUBISHI HEAVY INDUSTRIES, LTD.

A machine tool, on which a tool unit is attached to a main shaft via an attachment, wherein: the attachment has a cylinder fixed to the main shaft and a piston slidably held on the cylinder; the cylinder has a plurality of spherical bodies capable of projecting in the radial direction of the cylinder; the piston has an abutment face that causes the spherical bodies to project in the radial direction of the cylinder when the piston slides toward one side with respect to the cylinder; and the tool unit has a projection inclined face projecting in the radial direction of the tool unit, and is coupled to the attachment by way of the projection inclined face being in pressing contact with the spherical bodies that were caused to project by the piston sliding toward the one side. 1. A machine tool in which a tool unit having a tool used for machining is attached to a main spindle via an attachment , characterized in thatthe attachment has a cylinder portion fixed to the main spindle and a piston portion slidably held by the cylinder portion,the cylinder portion has a plurality of spherical bodies capable of projecting in a radial direction of the cylinder portion,the piston portion has an abutment face configured to cause the spherical bodies to project in the radial direction of the cylinder portion when the piston portion slides to one side relative to the cylinder portion, andthe tool unit has a projection inclined face projecting in a radial direction of the tool unit and is coupled to the attachment by the projection inclined face being pressed against the spherical bodies caused to project in the radial direction of the cylinder portion by the sliding of the piston portion to the one side.2. The machine tool according to claim 1 , characterized in thatthe piston portion has an escape hole which allows the spherical body to move in the radial direction of the cylinder portion and which is located at a position corresponding to each of the steel balls when the piston ...

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Номер записи: 62
30-07-2015 дата публикации

ELASTIC CHUCK

Номер: US20150209872A1
Автор: CHANG Jung-Feng, CHANG Jung-Sheng
Принадлежит:

An elastic chuck includes a base plate, an elastic plate and jaws. The base plate has a through hole running between upper and lower surfaces thereof. The elastic plate has a fixing ring fixed to the base plate, a pulling block that can move along a central axis of the through hole, and holders radially extending from the pulling block toward the fixing ring. Each of the holders has a top surface facing the upper surface of the base plate across a radial gap. The jaws are mounted at top surfaces of the holders, respectively. The pulling block of the elastic plate receives a pulling force along the central axis to drive the jaws to hold a workpiece firmly. The elastic chuck has a simple structure and limited parts, so its process of manufacturing and assembling are time-saving and cost saving, and the resultant structure is highly precise. 1. An elastic chuck , comprising:a base plate, having an upper surface, a lower surface, and a through hole running between the upper surface and the lower surface, a central axis defined by the through hole;an elastic plate, being integratedly formed as a unity and having a fixing ring, a pulling block located at the center of the fixing ring, and a plurality of holders radially extending from the pulling block toward the fixing ring, the fixing ring being fixed to the base plate, the pulling block being for receiving a pulling force and movably mounted substantially along the central axis within the through hole, each said holder having a bottom surface and a top surface, the bottom surface facing the upper surface of the base plate, and a radial gap existing between the bottom surface and the upper surface; anda plurality of jaws, each one being mounted on the top surface of the holders respectively.2. The elastic chuck of claim 1 , wherein each of the holders has an axial connecting rib that extends outward from the bottom surface thereof and is connected to the fixing ring.3. The elastic chuck of claim 2 , wherein the base ...

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Номер записи: 63
28-07-2016 дата публикации

CUTTING TOOL

Номер: US20160214183A1
Автор: Kanaboshi Akira, Kumakiri Takayuki
Принадлежит: MITSUBISHI MATERIALS CORPORATION

A cutting tool includes: a tool main body; a tube-shaped portion formed on a distal end portion of the tool main body; a hole machining tool core detachably fitted to an inside of the tube-shaped portion; and a head portion having a plurality of cutting edges and which is fitted to an outside of the tube-shaped portion. A circumferential wall of the tube-shaped portion includes an outer wall portion, an inner wall portion, and a fluid chamber which is formed in the circumferential wall between the outer and inner wall portions, wherein a fluid being filled in the fluid chamber. While increasing a pressure of the fluid in the fluid chamber, the outer wall portion is elastically deformed outward and thereby being pressed to the head portion, and the inner wall portion is elastically deformed inward and thereby being pressed to the hole machining tool core. 1. A cutting tool , comprising:a tool main body having a tube-shaped portion formed on a distal end portion of the tool main body so as to extend in a direction of an axial line of the tool main body, and which is capable of being rotated around the axial line;a hole machining tool core which has a shaft shape, which is detachably fitted to an inside of the tube-shaped portion, and which extends so as to protrude from the tube-shaped portion ahead of the distal end; anda head portion which has a tube shape, which is fitted to an outside of the tube-shaped portion, and in which a cutting edge is provided on an outer circumferential portion of the head portion,wherein a circumferential wall of the tube-shaped portion includes:an outer wall portion;an inner wall portion; anda fluid chamber which is formed in the circumferential wall between the outer wall portion and the inner wall portion, a fluid being filled in the fluid chamber, and whereinwhile increasing a pressure of the fluid in the fluid chamber, the outer wall portion is elastically deformed outward in a radial direction of the circumferential wall and ...

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Номер записи: 64
06-08-2015 дата публикации

OPENING AND CLOSING CHUCK

Номер: US20150217382A1
Автор: Hara Koji, Ishibashi Kouichirou, Saito Tadashi
Принадлежит: SMC Corporation

A guide rail is provided on an outer surface of a chuck body. A pair of fingers is disposed on the guide rail. At least one of the pair of fingers is a movable finger that is movable along the guide rail. One or two cylinder apparatuses, each of which has a rod that advances and retracts in the direction of its axial line by the action of air pressure, are provided in the chuck body. The top end of the rod extends from an end of the chuck body to the outside. An end block is attached to the top end of the rod. The end block is linked to the movable finger. 1. An opening and closing chuck , wherein:a guide rail, which is linear, is provided on an outer surface of a chuck body, a pair of fingers that grasp a workpiece is provided on the guide rail, and at least one of the pair of fingers is a movable finger that is movable along the guide rail;the movable finger includes a rail fitting groove into which the guide rail fits, a first concave groove is formed in right and left side surfaces of the guide rail and a second concave groove is formed in inner surfaces of right and left side walls of the rail fitting grooves, the first concave groove on the same side as the guide rail and the second concave groove on the same side as the rail fitting grooves being at positions at which the first concave groove and the second concave groove face each other, a rolling element is provided between the first concave groove and the second concave groove, and the movable finger is movable along the guide rail due to rolling of the rolling element;as many cylinder apparatuses as there are movable fingers are provided in the chuck body, each cylinder apparatus including a piston and a rod that advance and retract by an action of air pressure in directions of an axial line of a cylinder hole, a top end of the rod extends from an end of the chuck body to an outside, and an end block, which faces the end of the chuck body, is attached to the top end of the rod so as to move toward and ...

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Номер записи: 65
27-07-2017 дата публикации

OPENING/CLOSING CONTROL DEVICE OF CHUCK

Номер: US20170209939A1
Автор: ARAI Tomonori, Miyamoto Takashi, Sakai Tomoki
Принадлежит:

The invention relates to a device controlling a chuck of a machine tool and an auxiliary equipment thereof, thereby facilitating a setup work. Gripping and releasing of a work are confirmed by registering a work gripping position and a work releasing position of a chuck, a kind of a used chuck, and a gripping direction of a work in an external memory device every product type of the work, transferring the work gripping position and the work releasing position in correspondence to the product type to a controller of a machine tool displaying them on a display of an operator control panel, detecting a position of an operation rod opening and closing a claw of the chuck by a stroke sensor, referring to the gripping position of the work, and detecting conformity of the detecting position and set values of the work gripping position and the work releasing position. 1121514. An opening/closing control device of a chuck which carries out an opening and closing motion of a chuck () gripping a work (W) on the basis of a movement in an axial direction of an operation rod () coupled to a claw () of the chuck , the chuck opening/closing control device comprising:{'b': '2', 'a stroke sensor () which detects a moving position of said operation rod;'}{'b': '4', 'an external memory device () which stores a position of said operation rod when said chuck grips and releases said work, in connection with a product type of said work;'}{'b': 35', '43', '44', '3, 'a setting means () which sets a work gripping position () and a work releasing position () of the work of the product type in a controller () controlling the opening and closing motion of said chuck when the product type of said work is designated;'}{'b': '26', 'a grip detecting means () which outputs a grip signal in the case that the detecting position of said stroke sensor and said set work gripping position conform when said operation rod moves in the work gripping direction; and'}{'b': '27', 'a release detecting means () ...

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Номер записи: 66
27-07-2017 дата публикации

Lathe Chuck for Aluminum Alloy Hubs

Номер: US20170209940A1
Автор: Guo Jiandong
Принадлежит: CITIC Dicastal CO., LTD

A lathe chuck for aluminum alloy hubs, including a base plate, a base, a slide plate, positioning posts, etc. The base plate is connected together with the base by screws, forming a body of the lathe chuck for hubs; a tapered mounting hole is provided under the base plate so as to fit with a machine tool; the upper and lower ends of the positioning posts are mounted on the base plate and the base by screws respectively, which can increase mounting strength of the base plate and the base; the slide plate is in sliding fit with the positioning posts by copper sleeves, and may slide upwards and downwards along the positioning posts; the large pull rod is fixed on the slide plate by screws and may drive the slide plate to move upwards and downwards. 1. A lathe chuck for aluminum alloy hubs , comprising:a base plate, a base, a slide plate, positioning posts, a large pull rod, a small pull rod, a hydraulic power collet, a lateral pull rod, positioning blocks, a slide carriage, press claws and press claw shafts, wherein the base plate is connected together with the base by screws, forming a body of the lathe chuck for hubs; a tapered mounting hole is provided under the base plate so as to fit with a machine tool; upper and lower ends of the positioning posts are mounted on the base plate and the base by screws respectively; the slide plate is in a sliding fit with the positioning posts by copper sleeves to slide upwards and downwards along the positioning posts; the large pull rod is fixed on the slide plate by screws to drive the slide plate to move upwards and downwards; the small pull rod is coupled with the hydraulic power collet, which is fixed on the base plate by a gland to drive the slide carriage to move leftward and rightward by the lateral pull rod and screws under a driving of the small pull rod; the positioning blocks are mounted on the slide carriage; the press claws are coupled together with the press claw shafts by screws; the press claw shafts slide ...

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Номер записи: 67
02-07-2020 дата публикации

REPLACEABLE TOOL HOLDER

Номер: US20200206829A1
Автор: CHEN Jenq-Shyong
Принадлежит: Hantop Intelligence Technology Co., LTD.

A replaceable tool holder includes a connector adapted to be engaged with and driven to rotate by a spindle, a tool chuck, of which an end is detachably engaged with the connector and another end is adapted to engage a tool, and an electronic component provided in a chamber inside the tool chuck. The connector is provided with a non-contact power transmission device. A passage is provided in the connector and the tool chuck, wherein a wire is disposed in the passage, transmitting electric power to serve the need of the electronic component. With such design, one connector can be used to connect tool chucks of different types or models. Therefore, a user could, as required, replace the connecting interface between the tool holder and the spindle or the connecting interface between the tool holder and the tool. Furthermore, the electronic component could be steadily supplied with electric power. 1. A replaceable tool holder comprising:a connector, which is adapted to be engaged with a spindle, and is drivable to rotate by the spindle, wherein the connector is provided with a first sensing module, which is adapted to receive electric power from an externally provided second sensing module in a wireless manner; the connector has at least a connector passage provided therein, and the at least one connector passage has at least one connector wire provided therein; an end of the at least one connector wire is electrically connected to the first sensing module, whereby to receive electric power from the first sensing module, while another end thereof is electrically connected to a first conductive portion;a tool chuck, of which an end is detachably engaged with the connector, and another end is adapted to engage a tool, wherein the tool chuck has a chamber and at least one first passage provided therein; the at least one first passage communicates the chamber, and the at least one first passage has at least one first wire provided therein; an end of the at least one first ...

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Номер записи: 68
19-08-2021 дата публикации

Hydraulic-Expansion Chuck and the Use thereof

Номер: US20210252609A1
Автор: Becke Stefan, MAYER Michael, SCHÄPERKÖTTER Claus
Принадлежит: SCHAEFFLER TECHNOLOGIES AG & CO. KG

A hydraulic-expansion chuck for clamping a workpiece includes an annular body, an inner circumferential surface, an outer circumferential surface, and an axis of rotation. The chuck also includes a channel integrated into the annular body for receiving a pressurized hydraulic fluid to clamp the workpiece. The channel has an annular peripheral channel section formed radially between the inner circumferential surface and the outer circumferential surface. The chuck also includes a holding contour with a plurality of expansion lugs disposed on the inner circumferential surface and a plurality of further channel sections branching off from the channel. At least one of the plurality of further channel sections extends into a respective lug of the plurality of expansion lugs, and the hydraulic-expansion chuck is manufactured by an additive manufacturing process. 110.-. (canceled)11. A hydraulic-expansion chuck for clamping a workpiece , comprising:an annular body;an inner circumferential surface;an outer circumferential surface;an axis of rotation;a channel integrated into the annular body for receiving a pressurized hydraulic fluid to clamp the workpiece, the channel comprising an annular peripheral channel section formed radially between the inner circumferential surface and the outer circumferential surface;a holding contour comprising a plurality of expansion lugs disposed on the inner circumferential surface; and at least one of the plurality of further channel sections extends into a respective lug of the plurality of expansion lugs; and', 'the hydraulic-expansion chuck is manufactured by an additive manufacturing process., 'a plurality of further channel sections branching off from the channel, wherein12. The hydraulic-expansion chuck of claim 11 , wherein the hydraulic-expansion chuck is made of spring steel.13. The hydraulic-expansion chuck of claim 11 , wherein the holding contour has an approximately undulating or sinusoidal shape when viewed in an axial ...

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Номер записи: 69
18-08-2016 дата публикации

QUICK DISCONNECT APPARATUS FOR MODULAR TOOLING

Номер: US20160236357A1
Автор: Charlton Michael Thomas, Kalb James R.
Принадлежит:

A modular tooling receiver that includes a wall having a port that extends through it, an engaging member that is movably disposed in the port, and a lock actuator that is disposed on a first side of the wall. The lock actuator is moveable between a first position in which the lock actuator urges the engaging member in a first direction defined from the first side of the wall to a second side of the wall and a second position wherein the lock actuator permits the engaging member to move in a second direction defined from the second side of the wall to the first side of the wall. A first biasing element that biases the lock actuator toward the first position. A damper that controls a rate of motion of the lock actuator from the second position toward the first position. 1. A modular tooling receiver , comprising:a wall having a port that extends through it;an engaging member that is movably disposed in the port;a lock actuator that is disposed on a first side of the wall, wherein the lock actuator is moveable between a first position in which the lock actuator urges the engaging member in a first direction defined from the first side of the wall to a second side of the wall and a second position wherein the lock actuator permits the engaging member to move in a second direction defined from the second side of the wall to the first side of the wall;a first biasing element that biases the lock actuator toward the first position; anda damper that controls a rate of motion of the lock actuator from the second position toward the first position.2. The modular tooling receiver of claim 1 , further comprising:a retainer that is positioned on the second side of the wall and is moveable between a first position in which the retainer is in engagement with the engaging member to obstruct movement of the engaging member in the second direction and a second position in which the retainer permits movement of the engaging member in the second direction.3. The modular tooling ...

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Номер записи: 70
25-07-2019 дата публикации

SPINDLE APPARATUS FOR USE AT A MACHINE TOOL, IN PARTICULAR A LATHE, AND MACHINE TOOL WITH SUCH SPINDLE APPARATUS

Номер: US20190224757A1
Автор: GINAMI Valter, PASSERINI Mirko
Принадлежит: GILDEMEISTER Italiana S.p.A.

A spindle apparatus for use at a machine tool, having: an assembly including a workpiece spindle to receive an elongated workpiece and a motor for driving spindle rotation of the workpiece spindle about a spindle axis; a rotary guide-bush assembly being axially arranged with the workpiece spindle with respect to the spindle axis, the rotary guide-bush assembly receiving the elongated workpiece supported at the rotary guide-bush assembly to rotate about the spindle axis enabling movement of the elongated workpiece; wherein the rotary guide-bush assembly includes a portion to clamp the elongated workpiece, received in the rotary guide-bush and in the workpiece spindle, to transfer driving torque applied from the spindle motor during a driven acceleration of the rotation through the clamped elongated workpiece for rotation of the rotary guide-bush synchronized with the driven acceleration of the rotation of the workpiece spindle. 1. A spindle apparatus for use at a machine tool , in particular a lathe , comprising:a spindle assembly including a workpiece spindle being configured to receive an elongated workpiece and a spindle motor for driving a spindle rotation of the workpiece spindle about a spindle axis of the workpiece spindle; anda rotary guide-bush assembly being axially arranged with the workpiece spindle with respect to the spindle axis, the rotary guide-bush assembly including a rotary guide-bush configured to receive the elongated workpiece and beingsupported at the rotary guide-bush assembly to rotate with the elongated workpiece received in the workpiece spindle about the spindle axis while enabling a movement of the elongated workpiece in the direction of the spindle axis;wherein the spindle assembly and the rotary guide-bush assembly areconfigured to connect to each other by a torque transferring connection arranged between the spindle assembly and the rotary guide-bush assembly along the spindle axis so as to transfer drivingtorque during acceleration ...

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Номер записи: 71
30-08-2018 дата публикации

A CHUCK FOR A HIGH PRECISION MACHINE TOOL AND METHOD FOR MAKING A MULTI-CAVITY DIE OR MOULD

Номер: US20180243839A1
Автор: Wielandts Marc
Принадлежит:

A chuck for a machine tool having a rotation spindle with a main axis of rotation. The chuck comprises a base plate, a first rotatable plate eccentrically mounted on the base plate, a second rotatable plate eccentrically mounted on the first rotatable plate, balancing means for aligning a principal axis of inertia of the chuck with the main axis of rotation and a holding mechanism. The chuck is provided with an actuating mechanism for angularly displacing the first rotatable plate around a first rotation axis over a first angle of rotation and/or the second rotatable plate around a second rotation axis over a second angle of rotation such that the position of the object with respect to the main axis of rotation can be altered. 1. A chuck for a machine tool having a rotation spindle with a main axis of rotation , in particular a lathe , the chuck being arranged for positioning an object , such as a work piece , at a relevant position with respect to the main axis of rotation , the chuck being arranged such that the chuck together with the object positioned on it has a principal axis of inertia that can be arranged to coincide with the main axis of rotation , the chuck comprising:a base plate comprising mounting means for mounting the chuck to the spindle;a first rotatable plate eccentrically mounted on the base plate with respect to the main axis of rotation and having a first rotation axis running in parallel to the main axis of rotation such that the first rotational axis is shifted with respect to the main axis of rotation of the spindle;{'b': 19', '14, 'balancing means arranged for balancing the centre of gravity of the chuck together with the object positioned on it with respect to the main axis of rotation such that the principal axis of inertia of the chuck together with the object substantially coincides with the main axis of rotation () of the spindle ();'}a holding mechanism arranged for securing the first rotatable plate to the base plate; andan actuating ...

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Номер записи: 72
27-11-2014 дата публикации

ADJUSTABLE CLAMPING DEVICE

Номер: US20140346742A1
Автор: Motschi René, Theubet Jean-Gabriel
Принадлежит: Schaublin SA

A device for clamping a collet in a machine tool having a rotatable spindle and a spindle nose thereon includes a mounting portion fastenable to the spindle and a clamping portion extending from the mounting portion. A bore is defined through the clamping portion and the mounting portion. At least one moveable ring is located within a portion of the bore defined by the clamping portion, the moveable ring being configured to receive the collet or any other appropriate clamping tool. At least one screw is mounted in the clamping portion and can be tightened against the moveable ring. The collet or clamping tool is attachable to the spindle nose of the machine tool and is drawn into the bore of the clamping portion. A method of clamping a collet includes providing the clamping device, attaching the device to the machine tool, inserting the collet into the clamping device, and attaching the collet to the spindle nose. 118.-. (canceled)19. A device for clamping a tool or a workpiece , the device comprising:a mounting portion fastenable to a spindle of a machine tool;a clamping portion extending from the mounting portion, the clamping portion and the mounting portion defining a bore extending therethrough;a collet attached via the device to a spindle nose of the machine tool,a guide bushing located within a portion of the bore defined by the clamping portion,{'b': '15', 'a sleeve located at least partially in the guide bushing and in the bore , and being configured to receive the collet; and'}a plurality of differential screws positioned equidistant circumferentially around the clamping portion in communication with the guide bushing;wherein the collet is drawn into the bore of the clamping portion and clamped therein.20. The device of claim 19 , wherein the portion of the bore defined through the clamping portion is defined by a first diameter and a second diameter claim 19 , and wherein a transition between the first diameter and the second diameter is a shoulder.21. ...

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Номер записи: 73
27-11-2014 дата публикации

MULTI-ZONED PLASMA PROCESSING ELECTROSTATIC CHUCK WITH IMPROVED TEMPERATURE UNIFORMITY

Номер: US20140346743A1
Автор: BERA KALLOL, BUCHBERGER, JR. DOUGLAS A., KUMAR SURAJIT, Nevil Shane C., TAVASSOLI Hamid, ZHOU XIAOPING
Принадлежит:

An electrostatic chuck assembly including a dielectric layer with a top surface to support a workpiece. A cooling channel base disposed below the dielectric layer includes a plurality of inner fluid conduits disposed beneath an inner portion of the top surface, and a plurality of outer fluid conduits disposed beneath an outer portion of the top surface. A chuck assembly includes a thermal break disposed within the cooling channel base between the inner and outer fluid conduits. A chuck assembly includes a fluid distribution plate disposed below the cooling channel base and the base plate to distribute a heat transfer fluid delivered from a common input to each inner or outer fluid conduit. The branches of the inner input manifold may have substantially equal fluid conductance. 1. A chuck assembly for supporting a workpiece during a manufacturing operation , the chuck assembly comprising:a top surface of a dielectric layer to support the workpiece;a cooling channel base disposed beneath the top surface;a base plate disposed beneath the cooling channel base; anda thermal break disposed within the cooling channel base and extending into the base plate.2. The chuck assembly of claim 1 , wherein the thermal break comprises a void.3. The chuck assembly of claim 2 , wherein the void is unpressurized.4. The chuck assembly of claim 2 , wherein the void is positively pressurized.5. The chuck assembly of claim 2 , wherein the void is negatively pressurized.6. The chuck assembly of claim 1 , wherein the thermal break comprises a second material with a higher thermal resistance value than that of the cooling channel base.7. The chuck assembly of claim 6 , wherein the second material is ceramic.8. The chuck assembly of claim 1 , further comprising fluid conduits that extend from a top surface of the base plate and into the cooling channel base.9. The chuck assembly of claim 8 , wherein the thermal break extends into the cooling channel base by an amount equal to that of the fluid ...

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Номер записи: 74
14-09-2017 дата публикации

HYDRAULIC EXPANSION CHUCK AND METHOD FOR PRODUCING SUCH AN EXPANSION CHUCK

Номер: US20170259347A1
Автор: Herud Josef Konrad
Принадлежит:

Hydraulic expansion chuck with a basic body, with an expansion bush which is received in the basic body and defines a reception space for a tool to be clamped, and with a pressure chamber which is delimited between the expansion bush and the basic body. A securing pin which extends through the basic body and the expansion bush into the reception space. Also broadly contemplated herein is a method for producing a hydraulic expansion chuck via: providing a basic body with a blind hole, into which an internal thread is cut. An expansion bush is then soldered into the basic body. Finally, an orifice is made at the bottom of the blind hole and extends through the material of the expansion bush into a tool reception space which is delimited in the expansion bush. 19-. (canceled)10. A method of producing a hydraulic expansion chuck , said method comprising:providing a basic body;disposing an expansion bush in the basic body, wherein the expansion space defines therewithin a reception space for receiving a tool to be clamped;providing an orifice which extends through material of the expansion bush and into the reception space.11. The method according to claim 10 , comprising:providing the basic body with a blind hole;wherein said providing of an orifice comprises providing the orifice at a bottom of the blind hole.12. The method according to claim 10 , comprising cutting an internal thread into the blind hole.13. The method according to claim 10 , wherein said providing of the orifice comprises drilling the orifice.14. The method according to claim 10 , wherein said disposing comprises securing the expansion bush and the basic body with respect to one another.15. The method according to claim 14 , wherein the expansion bush and the basic body are secured with respect to one another to prevent relative axial movement of the expansion bush and basic body with respect to one another.16. The method according to claim 15 , wherein:the expansion bush and the basic body are ...

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Номер записи: 75
04-12-2014 дата публикации

HYDRAULIC CHUCK WITH A REDUCTION SLEEVE

Номер: US20140353931A1
Автор: Borapura Santhosha Boregowda, Frota De Souza Filho Ruy, Herud Josef K., Kulkarni Mahima R.
Принадлежит: KENNAMETAL INC.

A hydraulic expansion chuck for receiving a tool includes a chuck body, an expansion bushing which is received in the chuck body and defines a chuck opening, a pressure chamber which is interposed between the expansion bushing and the chuck body, and a reduction sleeve. The reduction sleeve is received in the chuck opening of the expansion bushing and defines a tool holder receptacle for receiving the tool to be chucked. The reduction sleeve includes a connector element configured to releasably attach the reduction sleeve to the chuck body. The reduction sleeve also may include an adjustment element configured to adjust the axial position of the tool in the tool holder receptacle. 1. A hydraulic expansion chuck for receiving a tool , comprising:a chuck body having a mounting member;an expansion bushing which is received in the chuck body and defines a chuck opening;a pressure chamber which is interposed between the expansion bushing and the chuck body; anda reduction sleeve which is received in the chuck opening of the expansion bushing and defines a tool holder receptacle for receiving the tool to be chucked, wherein the reduction sleeve includes a connector element configured to cooperate with the mounting member to releasably attach the reduction sleeve to the chuck body.2. The hydraulic expansion chuck of claim 1 , wherein the connector element is formed adjacent an axial rearward end of the reduction sleeve.3. The hydraulic expansion chuck of claim 2 , wherein the expansion bushing defines a chuck receptacle in communication with the chuck opening and the mounting member is formed adjacent an axial rearward end of the chuck receptacle.4. The hydraulic expansion chuck of claim 1 , wherein the reduction sleeve includes an adjustment element configured to adjust the axial position of the tool in the tool holder receptacle.5. The hydraulic expansion chuck of claim 1 , wherein the reduction sleeve includes means for driving the reduction sleeve to cooperate with the ...

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Номер записи: 76
21-10-2021 дата публикации

HYDRAULIC EXPANDING CHUCK

Номер: US20210323078A1
Автор: KLEINER Gilbert
Принадлежит: Guehring KG

A hydraulic expanding chuck for receiving and clamping a tool with a shank. The hydraulic expanding chuck has a main body, which on an axial side has a clamping section that extends along a longitudinal central axis of the expanding chuck and has a clamping part lying in a neck region and in which are formed a central receiving opening for receiving a tool shank and a chamber system to which a fluid pressure can be applied. The chamber system comprises at least one pressure chamber, which is separated from the receiving opening in the radial direction by an expansion wall yielding elastically under the fluid pressure, and which can be supplied with fluid pressure by means of at least one axial pressure channel running from a piston clamping mechanism accommodated in a clamping region of the hydraulic expanding chuck. 1. A hydraulic expanding chuck for receiving and clamping a tool shank , with a main body that on an axial side carries a clamping section which extends along a longitudinal central axis of the expanding chuck and has a clamping part lying in a neck region , in which are formed a central receiving opening for receiving a tool shank and a chamber system that can be supplied with a fluid pressure , and comprises at least one pressure chamber , which in a radial direction is separated from the receiving opening by an expansion wall yielding elastically under the fluid pressure and can be supplied with fluid pressure via at least one axial pressure channel , which proceeds from a piston clamping mechanism accommodated in a clamping region of the hydraulic expanding chuck , wherein , at least in the region that accommodates the piston clamping mechanism , the clamping section is configured and/or machined in such a way that recesses and cavities lying in this region are positioned relative to each other and/or distributed over the circumference so that deformations and/or distortions induced by a pressure buildup while clamping the tool become superposed in ...

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Номер записи: 77
01-10-2015 дата публикации

TOOL CONNECTOR HAVING MULTIPLE SEATING POSITIONS

Номер: US20150273592A1
Автор: Cantlon Nathan C., Cornwell W. Robert
Принадлежит: JORE CORPORATION

A tool connector generally includes a tool receiving portion configured for reciprocating between first and second work tool seating positions, wherein the tool receiving portion is normally biased to the first work tool seating position, and actuatable to the second work tool seating position. The tool connector further includes a magnetic mechanism in the tool receiving portion for providing magnetic force to engage a work tool in either of the first and second work tool seating positions, and a locking mechanism for lockingly engaging a work tool in the second work tool seating position. 1. A tool connector capable of releasably holding a plurality of work tools , the tool connector comprising:a shaft having an axial bore with a tool receiving end;a locking assembly coupled to the shaft and comprising a tool locking mechanism, wherein the tool locking mechanism protrudes into the axial bore when the locking assembly is in a locked position, and wherein the tool locking mechanism is retractable from the axial bore when the locking mechanism is in an unlocked position;a shuttle disposed within the axial bore such that a leading end of the shuttle is the closest end of shuttle to the tool receiving end, wherein the shuttle is capable of being reciprocated from an extended position to a retracted position; anda stop located within the axial bore and configured to prevent the shuttle from extending further than the extended position toward the tool locking mechanism, wherein the stop is configured to engage the leading end of the shuttle;wherein the tool connector is configured to hold a work tool of the plurality of work tools at one of a first seating position or a second seating position, wherein the shuttle is located at the extended position when the work tool is held at the first seating position and at the retracted position when the work tool is held at the second seating position.2. The tool connector of claim 1 , further comprising:a magnet extending from ...

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Номер записи: 78
01-10-2015 дата публикации

POSITIONING ASSEMBLY AND METHOD

Номер: US20150273640A1
Автор: ELFIZY Amr, LI Yuwen
Принадлежит: PRATT & WHITNEY CANADA CORP.

A positioning assembly for positioning a rotary part to be machined includes a machining fixture and a positioning device having an elastically-deformable diaphragm concentrically mounted to the fixture and defining an annular loading zone which receives an axial force substantially parallel with a center axis of the fixture. The positioning device has circumferentially-spaced engaging segments, fixed to the diaphragm and extending away therefrom, which have contact members that are displaced radially to frictionally engage the rotary part when the axial force is applied to the loading zone of the diaphragm. 1. A positioning assembly for positioning a rotary part having at least a first surface to be machined , comprising:a machining fixture having a positioning support member defining a center axis, the rotary part concentrically mountable to the machining fixture about the center axis to expose the first surface;a positioning device having an elastically-deformable diaphragm, concentrically mounted to the machining fixture about the positioning support member and defining an annular loading zone thereon, and a plurality of circumferentially-spaced engaging segments fixed to the diaphragm and extending away therefrom, at least some of said engaging segments having a contact member which is displace radially to frictionally engage a circumferential surface of the rotary part when the annular loading zone receives an axial force applied thereon substantially parallel with the center axis; andan actuating member having a force applicator displaceable relative to the machining fixture about the center axis, the actuating member having a proximal surface and a distal surface for engaging the loading zone of the diaphragm, and a force provider having an application surface engaging with the proximal surface of the force applicator to provide the axial force thereto.2. The positioning assembly as defined in claim 1 , wherein the contact members of the engaging segments ...

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Номер записи: 79
20-08-2020 дата публикации

Tool Holder Having A Rigid Sleeve

Номер: US20200261987A1
Автор: Chen Peter
Принадлежит:

A tool holder used in a machine having a spindle is provided with a connector including a truncated conic part received in the spindle, and a projection extending out of the truncated conic part; a tool mounting member including an axial hole for fastening a tool and a portion of a chuck, and a receptacle for complimentarily receiving the projection; and at least one sleeve formed of a material having a high rigidity, each sleeve including a cavity at one end, the cavity being configured to complimentarily receive the projection, and a protrusion at the other end, the protrusion being configured to complimentarily attach to the receptacle. The connector, the at least one sleeve, and the tool mounting member are secured together. 1. A tool holder used in a machine having a spindle , comprising:a connector including a truncated conic part received in the spindle, and a projection extending out of the truncated conic part;a tool mounting member including an axial hole for fastening a tool and a portion of a chuck, and a receptacle for complimentarily receiving the projection; andat least one sleeve formed of a material having a high rigidity, each of the least one sleeve including a cavity at one end, the cavity being configured to complimentarily receive the projection, and a protrusion at the other end, the protrusion being configured to complimentarily attach to the receptacle;wherein the connector, the at least one sleeve, and the tool mounting member are secured together.2. The tool holder of claim 1 , further comprising at least one sleeve member disposed between the connector and the at least one sleeve.3. The tool holder of claim 2 , wherein each of the at least one sleeve member includes a recess at one end claim 2 , the recess being configured to complimentarily receive the projection claim 2 , and a protuberance at the other end claim 2 , the protuberance being configured to complimentarily attach to the receptacle; and wherein the connector claim 2 , the at ...

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Номер записи: 80
09-12-2021 дата публикации

CHUCK-CLAW GUIDE STRUCTURE AND CHUCK-CLAW INSERTION METHOD

Номер: US20210379674A1
Автор: NAGAOSA Hiroshi
Принадлежит: Howa Machinery, Ltd.

A chuck-claw guide structure includes a guide-space delimiting part that delimits a guide space in communication with an attachment groove, and a regulation part provided on the guide-space delimiting part. The guide-space delimiting part has a contact surface configured to regulate the claw in contact therewith at a position along the attachment groove in a first direction. The regulation part is configured to regulate the claw at a position along the attachment groove in a second direction different from the first direction. 1. A chuck-claw guide structure for guiding a claw to be inserted into an attachment groove provided in a chuck body , comprising:a guide-space delimiting part that delimits a guide space in communication with the attachment groove, the guide-space delimiting part having a contact surface configured to regulate the claw in contact therewith at a position along the attachment groove in a first direction; anda regulation part provided on the guide-space delimiting part, the regulation part being configured to regulate the claw at a position along the attachment groove in a second direction different from the first direction.2. The chuck-claw guide structure according to claim 1 , whereina plurality of the regulation parts are provided in the guide space at positions different from each other in an insertion direction of the claw.3. The chuck-claw guide structure according to claim 1 , whereinthe regulation part has a curved surface that is convex toward an inside of the guide space.4. The chuck-claw guide structure according to claim 1 , whereinthe guide-space delimiting part has a sidewall surface that is located more outside in the guide space than a distal end of the regulation part to define the guide space.5. The chuck-claw guide structure according to claim 1 , further comprising a regulation support part movably provided on the guide-space delimiting part claim 1 , and configured to support the regulation part.6. The chuck-claw guide ...

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Номер записи: 81
04-10-2018 дата публикации

Loading mechanism and machine tool system

Номер: US20180281083A1
Автор: Nobuhiko Tsuji, Shouhei YAMAUCHI
Принадлежит: NTN Corp

A workpiece is conveyed from a first fixed point to a second fixed point by a conveyor in a chucked state. A phase of the workpiece that is being conveyed by the conveyor is detected by a detector. The workpiece conveyed to the second fixed point by the conveyor is seated on a seating part. A workpiece seating phase of the seating part is adjusted by an adjustor to the phase of the workpiece detected by the detector.

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Номер записи: 82
12-10-2017 дата публикации

Hydraulic Chuck Device

Номер: US20170291226A1
Автор: Michiura Shun, Nishimura Kimiyuki, TAKAYAMA Masakazu, YAMANE Masahiro
Принадлежит: DMG MORI CO., LTD.

A hydraulic chuck device includes a cylinder portion operated by pressure oil, a chuck opened and closed by operation of the cylinder portion, a pressure oil supply controlling pressure of pressure oil supplied to the cylinder portion, and a chuck controller controlling the pressure oil supply. When controlling the pressure oil supply to cause a jaw portion to perform a clamping operation, during movement of the jaw portion from an unclamping position to a preliminary position situated before a clamping position, the chuck controller supplies pressure oil set at a first pressure into a cylinder chamber for clamping to move the jaw portion quickly, and during movement of the jaw portion from the preliminary position to the clamping positon, the chuck controller supplies pressure oil set at a second pressure lower than the first pressure into the cylinder chamber for clamping to move the jaw portion slowly. 1. A hydraulic chuck device comprising:a cylinder portion having a cylinder hole and a piston disposed in the cylinder hole, the piston being operated by pressure oil selectively supplied into either one of two cylinder chambers formed on opposite sides of the piston;a chuck having a jaw portion connected to the piston, the jaw portion being opened and closed by operation of the piston;a pressure oil supply switching the cylinder chamber to be supplied with pressure oil to open or close the jaw portion and controlling pressure of the pressure oil to be supplied; anda controller controlling the pressure oil supply,the controller being configured to, when controlling the pressure oil supply to supply pressure oil into the cylinder chamber for clamping for executing a clamping operation of moving the jaw portion from an unclamping position to a clamping position, during movement of the jaw portion from the unclamping position to a preliminary position situated before the clamping position, supply pressure oil set at a first pressure into the cylinder chamber for ...

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Номер записи: 83
29-10-2015 дата публикации

COUPLING DEVICE OF JIG

Номер: US20150306677A1
Автор: LIN Chien-Chih
Принадлежит: CHERNG JIN TECHNOLOGY CO., LTD.

A coupling device of jigs includes a foundation, a tube, a plurality of balls, and a piston base. The foundation has a chamber, in which a part of the tube is inserted. The tube has a plurality of through holes for housing the balls. The piston base is received in the chamber, and fitted to the tube. An inner surface of the piston base has a circular groove and an abutment surface. The piston base can be moved along an axial direction of the tube between a first position and a second position. When at the first position, a part of each ball is inside the circular groove; when at the second position, an area where the abutment surface abuts against each ball is not merely a single point. Whereby, the force applied on the abutment surface is dispersed, and therefore the processing accuracy of workpieces is ensured. 1. A coupling device , comprising:a foundation having a chamber therein and a perforation on a surface thereof and connecting to the chamber;a tube engaged with the perforation of the foundation, wherein the tube has a plurality of through holes;a plurality of balls, which are respectively movably provided in each of the through holes of the tube; anda piston base received in the chamber and fitted to an outer surface of the tube, wherein the piston base can be moved along an axial direction of the tube between a first position and a second position; the piston base has an inner surface facing the outer surface of the tube, and a circular groove is formed on the inner surface of the piston base; when the piston base is at the first position, a part of each of the balls is received in the circular groove; the inner surface of the piston base further includes a abutment surface, which abuts against each ball with an area when the piston base is at the second position.2. The coupling device of claim 1 , wherein the abutment surface of the piston base includes a recession section; when the piston base is at the second position claim 1 , the recession section of ...

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Номер записи: 84
18-10-2018 дата публикации

CUTTING TOOL HOLDING MECHANISM, CUTTING TOOL HOLDER AND MACHINE TOOL SYSTEM

Номер: US20180297162A1
Автор: AKAGAWA Naoki, Dohi Yoshiaki
Принадлежит: FANUC Corporation

A cutting tool holding mechanism for detachably holding a cutting tool includes: a collet chuck configured to clamp and unclamp the cutting tool; a piston disposed deeper on the proximal side of the spindle than the collet chuck and configured to urge the collet chuck by the pressure of a fluid supplied from the proximal side of the spindle in the direction from the proximal side toward the distal end side of the spindle so that the collet chuck unclamps the cutting tool; a spool valve provided in the piston and configured to open thanks to centrifugal force at the time when the spindle is turned, so as to supply the fluid fed from the spindle side to the cutting tool. 1. A cutting tool holding mechanism provided in a spindle of a machine tool to detachably hold a cutting tool , comprising:a collet chuck configured to clamp and unclamp the cutting tool;a first elastic part disposed on a distal end side of the collet chuck and configured to elastically urge the collet chuck in a direction from a distal end side toward a proximal side of the spindle so that the collet chuck clamps the cutting tool;a piston disposed deeper on a proximal side of the spindle than the collet chuck and configured to urge the collet chuck by pressure of fluid supplied from the proximal side of the spindle in the direction from the proximal side toward a distal end side of the spindle so that the collet chuck unclamps the cutting tool;a spool valve provided in the piston and configured to open owing to centrifugal force caused when the spindle is turned, so as to supply the fluid fed from the spindle side to the cutting tool; anda second elastic part provided in the piston and configured to elastically urge the spool valve in a valve closing direction.2. The cutting tool holding mechanism according to claim 1 , further comprising a tapered portion arranged on the distal end side of the collet chuck and configured to engage with an inner peripheral surface of the collet chuck when the collet ...

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Номер записи: 85
25-10-2018 дата публикации

LATHE PROVIDED WITH ECCENTRICITY ADJUSTMENT MECHANISM

Номер: US20180304379A1
Автор: NAKAKUBO Hirofumi, NAKAMURA Takio, NISHIYAMA Akira, SHIMIZU Tatsuo
Принадлежит: O-M LTD.

The present invention provides a lathe that is provided with an eccentricity adjustment mechanism that makes it possible for electrical components that are readily affected by the environment to be eliminated from the turntable; for slip rings in particular, which exhibit problems in terms of the durability of signal transmission during high-speed rotation, to be eliminated as well, and for safe and stable adjustment of workpiece eccentricity to be easily achieved. A lathe provided with an eccentricity adjustment mechanism, in which a linear motion guide unit () is provided in an inclined state in an engaging part of the center part of a turntable () and an axial-direction-movement part (A) of a center shaft (); and, due to the center shaft () being moved, the turntable () moves in the radial direction by the radial pressing force generated by the linear motion guide unit () being inclined, and the eccentricity of the workpiece () is adjusted.

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Номер записи: 86
03-11-2016 дата публикации

Clamping Device

Номер: US20160318107A1
Автор: MAUCH PETER
Принадлежит:

The invention relates to a clamping device () for clamping a workpiece and is comprised of a chuck () and a collet () situated in the chuck (). A bayonet closure is provided via which the collet () can be secured in the chuck () or released from it without a tool; the collet () can be moved between a clamped position and a release position against a fixed part of the chuck (). At least one locking element () is situated in the fixed part of the chuck () that secures the bayonet closure against a release in the clamped position and that releases the bayonet closure for actuation in the release position. 112323232232. Clamping device () for clamping a workpiece with a chuck () and a collet () situated in the chuck () , wherein a bayonet closure is provided via which the collet () can be secured in the chuck () or released from it without tools , and wherein the collet () can be moved between a clamped position and a release position against a fixed part of the chuck () , characterized in that at least one locking element () is situated in the fixed part of the chuck () that secures the bayonet closure against being released in the clamped position and that releases the bayonet closure for actuation in the release position.21415143223152315. Clamping device according to claim 1 , characterized in that the bayonet closure has a manually operated actuation ring () and a bayonet ring () actively connected to the actuation ring () via which the collet () can be fixed in place in the chuck () and that in the clamped position the at least one locking element () blocks the bayonet ring () against twisting and in the release position the at least one locking element () releases the bayonet ring ().3153. Clamping device according to claim 2 , characterized in that the bayonet ring () with the collet () is moved between the release position and the clamped position.4232515. Clamping device according to claim 2 , characterized in that in the clamped position the at least one ...

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Номер записи: 87
02-11-2017 дата публикации

ALUMINUM ALLOY HUB LATHE FIXTURE

Номер: US20170312833A1
Автор: Guo Jiandong
Принадлежит: CITIC Dicastal CO., LTD

An aluminum alloy hub lathe fixture, which includes a main plate, a mounting seat, a hydraulic power clamping head, a pull rod, a sliding seat, a connecting pin, a fan-shaped clamping jaw, a sealing cover, a deflection block, a deflection shaft, a centrifugal force balance block, a centrifugal mechanism base, a spring and screws, wherein the main plate and the mounting seat are connected together through screws, so that a housing of the entire fixture is formed; the hydraulic power clamping head is fixed on the mounting seat through screws; one end of the pull rod is mounted on the hydraulic power clamping head through screws, and the other end of the pull rod is connected with the sliding seat through the connecting pin; the fan-shaped clamping jaw is fixed on the sliding seat through screws. 1. An aluminum alloy hub lathe fixture , comprising:a main plate, a mounting seat, a hydraulic power clamping head, a pull rod, a sliding seat, a connecting pin, a fan-shaped clamping jaw, a sealing cover, a deflection block, a deflection shaft, a centrifugal force balance block, a centrifugal mechanism base and a spring,wherein the main plate and the mounting seat are connected together through a first screws A, so that a housing of the entire fixture is formed; all parts and components are mounted in the fixture, the hydraulic power clamping head is fixed on the mounting seat through screws B, one end of the pull rod is mounted on the hydraulic power clamping head through screws C, and the other end of the pull rod is connected with the sliding seat through the connecting pin; the fan-shaped clamping jaw is fixed on the sliding seat through screws D, the hydraulic power clamping head drives the sliding seat and the fan-shaped clamping jaw to move forwards and backwards through the pull rod, and the deflection block, the deflection shaft, the centrifugal force balance block and the spring are all mounted on the centrifugal mechanism base, so that a centrifugal force balance ...

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Номер записи: 88
02-11-2017 дата публикации

VEHICLE WHEEL LATHE FIXTURE

Номер: US20170312834A1
Автор: Guo Jiandong
Принадлежит: CITIC Dicastal CO., LTD

A vehicle wheel lathe fixture, including an upper cover, a coupling base, a floating disc, a driving seat, a sliding sleeve, a finger-shaped press jaw, a rotating shaft, a sliding shaft, an end-face positioning block base, an end-face positioning block, a positioning pin, a radial positioning block, a radial pull rod, a hydraulic power chuck, a disc spring sleeve, a disc spring, a disc spring positioning column, a press cover, a hydraulic power chuck mounting base and a dust cover. Embodiments of the invention have the characteristics of reliable work, stable operation and wide compatibility range, and is applicable to vehicle wheel mechanical processing lathes. 1. A vehicle wheel lathe fixture , comprising:an upper cover, a coupling base, a guide pin, a floating disc, a driving seat, a sliding sleeve, a finger-shaped press jaw, a rotating shaft, a sliding shaft, an end-face positioning block base, an end-face positioning block, a radial positioning block, a radial pull rod, a hydraulic power chuck, a disc spring sleeve, a disc spring, a disc spring positioning column, a press cover, a hydraulic power chuck mounting base, and a dust cover,wherein the coupling base and the upper cover are installed together via a bolt A to form a housing of the entire fixture and provide a basis for installation of individual parts; the guide pin is arranged between the upper cover and the coupling base, the floating disc is coupled to the guide pin via the sliding sleeve, and the driving seat and the floating disc are coupled via a bolt B and can drive the floating disc to slide freely; the bottom end of the finger-shaped press jaw is coupled to the floating disc via the rotating shaft, a sliding chute is formed at the middle of the finger-shaped press jaw and combines with the sliding shaft installed on the upper cover to form a sliding pair, and the end-face positioning block is installed on the end-face positioning block base;the end-face positioning block base is installed on ...

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Номер записи: 89
26-11-2015 дата публикации

PRE-STRESSING DAMPING SYSTEM

Номер: US20150336179A1
Автор: HAIMER Franz
Принадлежит:

A tool holder having a tool receptacle for chucking a tool shaft by frictional engagement, in which the tool receptacle comprises a plurality of annular clamping surfaces spaced apart from one another, which are intended for retaining the tool shaft by nonpositive engagement and are embodied on the inner circumference of a tube part, and the tube part has a recess in the material for varying its clamping action; the recess in the material is embodied by a plurality of annular channels extending in the circumferential direction, which are each separated from the tool receptacle by a resilient wall portion, which on its side facing away from the channel embodies the respective clamping surface. 1. A tool holder having a tool receptacle for chucking a tool shaft by frictional engagement , the tool receptacle comprising:a plurality of annular clamping surfaces spaced apart from one another, which are intended for retaining the tool shaft by nonpositive engagement and are embodied on an inner circumference of a tube part, and the tube part has a recess in a material for varying its clamping action, and the recess in the material is embodied by a plurality of annular channels extending in a circumferential direction, which are each separated from the tool receptacle by a resilient wall portion, which on its side facing away from a respective channel embodies a respective clamping surface, wherein a depth of each channel, measured in a radial direction, is <0.1 mm.2. A tool holder having a tool receptacle for chucking a tool shaft by frictional engagement , the tool receptacle comprising:at least one helical clamping surface, which is intended for retaining the tool shaft by nonpositive engagement and is embodied of an inner circumference of a tube part, and the tube part has a recess ma material for varying its clamping action, and the recess in the material is embodied by at least one channel extending essentially in a circumferential direction along a helical line, ...

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Номер записи: 90
08-11-2018 дата публикации

Lathe Error-Correcting Collet Chuck

Номер: US20180318937A1
Автор: Woodman Mark
Принадлежит:

An adjustable collet holder for use with a lathe is provided. The adjustable collet holder may include a set of hold down screws to hold it in place once adjusted. Adjustment may be achieved by adjusting multiple set screws to change both angular and concentricity orientations of a collet receiver relative to a body of the collet holder. 1. An adjustable collet holder for a lathe comprising:a body connectable to the lathe; anda collet receiver, the collet receiver adjustably attached to the body allowing for both lateral and angular adjustments to align a collet of the collet receiver with a spindle of the lathe.2. The adjustable collet holder of further comprising a plurality of hold-down screws configured to secure a position of the collet receiver relative to the body when in a tightened position.3. The adjustable collet holder of further comprising a plurality of angular set screws for adjustment of an angular orientation of the collet receiver relative to the body claim 1 , and a plurality of radial set screws to allow for a radial adjustment of the collet receiver relative to the body.4. The adjustable collet holder of further comprising a plurality of angular set screws for adjustment of an angular orientation of the collet receiver relative to the body claim 2 , and a plurality of radial set screws to allow for a radial adjustment of the collet receiver relative to the body.5. The adjustable collet holder of wherein the body defines a sidewall claim 1 , a plurality of protrusion on at least one of the collet receiver and the sidewall engaged with a plurality of slots of the other of the collet receiver and the sidewall.6. The adjustable collet holder of further comprising a collet built into the collet receiver.7. The adjustable collet holder of further comprising a collet removably connected to the collet receiver.8. The adjustable collet holder of further comprising a flexible gasket positioned between the collet receiver and the body.9. The adjustable ...

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Номер записи: 91
03-12-2015 дата публикации

SYSTEM AND METHOD FOR AUTOMATICALLY ADJUSTING A POSITION OF A PANEL ON A CHUCK

Номер: US20150343589A1
Автор: Wang Fengchao
Принадлежит:

The present disclosure provides a system and method for automatically adjusting a position of a panel on a chuck. The system includes: the chuck having a front end sensor and a rear end sensor arranged respectively on front and rear ends of the chuck in a direction of carrying the panel, and also having an adjustment unit arranged in a central area of the chuck; and a central control apparatus configured to receive a front end trigger signal transmitted by the front end sensor, and judge whether to enable the adjustment unit to adjust the position of the panel on the chuck based on whether a rear end trigger signal transmitted by the rear end sensor is received within a predetermined period of time after the front end trigger signal is received. In this way, the position of the panel with respect to the chuck can be adjusted efficiently, thereby accurately judging a condition of carrying the panel, and thus preventing a machine station from falsely generating an alarm and halt. 1. A system for automatically adjusting a position of a panel on a chuck , comprising:the chuck having a front end sensor and a rear end sensor arranged respectively on front and rear ends of the chuck in a direction of carrying the panel, and having an adjustment unit arranged in a central area of the chuck; anda central control apparatus configured to receive a front end trigger signal transmitted by the front end sensor, determine whether a rear end trigger signal transmitted by the rear end sensor is received within a predetermined period of time after the front end trigger signal is received, and judge whether to enable the adjustment unit to adjust the position of the panel on the chuck based on a result of the determination.2. The system according to claim 1 , wherein the central control apparatus is configured to enable the adjustment unit to adjust the position of the panel on the chuck when determining that the rear end trigger signal is not received within the predetermined period ...

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Номер записи: 92
22-11-2018 дата публикации

TOOL HOLDER AND METHOD FOR PRODUCING A TOOL RECEIVING PORTION FOR SUCH A TOOL HOLDER

Номер: US20180333786A1
Автор: HAIMER Franz
Принадлежит: Franz Haimer Maschinenbau KG

A tool holder with a main part, a deformable receiving portion for clamping a tool, and at least one blocking element which is designed to engage into a corresponding counter element on the tool in order to prevent the tool from moving axially out of the tool holder. The at least one blocking element is integrally formed with the receiving portion. A clamping system having such a tool holder and a method for producing a receiving portion for such a tool holder are also described. 1. Tool holder with a main part , a deformable receiving portion for clamping a tool and at least one blocking element that is formed to prevent axial slippage of the tool from the tool holder by engaging with a corresponding counter element on the tool , wherein the at least one blocking element is formed integrally with the receiving portion.2. Tool holder according to claim 1 , wherein the receiving portion is an expansion sleeve deployed in a receiving opening of the main part and subject to external pressure with hydraulic fluid claim 1 , on the inner side of which is deployed the at least one blocking element.3. Tool holder according to claim 1 , wherein the receiving portion is formed as a contracting chuck realized integrally with the main part claim 1 , on the inside of which is deployed the at least one blocking element.4. Tool holder according to claim 1 , wherein the receiving portion is formed as a reducing sleeve deployed within a contracting chuck claim 1 , on the inside of which is deployed the at least one blocking element.5. Tool holder according to claim 1 , wherein the receiving portion is formed as a collet chuck that is deployed within the a receiving opening of the main part and can be deformed by a clamping element claim 1 , on the inside of which is deployed the at least one blocking element.6. Tool holder according to claim 1 , wherein the receiving portion is formed as a clamping region deployed on a front part of the main part claim 1 , that can be deformed by a ...

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Номер записи: 93
30-11-2017 дата публикации

TOOL HOLDER FOR A CUTTING TOOL AND SLEEVE FOR A TOOL HOLDER

Номер: US20170341157A1
Автор: Herud Josef Konrad
Принадлежит: KENNAMETAL INC.

A tool holder for a cutting tool having a tool shank includes a receptacle which extends in an axial direction and a sleeve disposed in the receptacle. The sleeve includes a tool receptacle structured to at least partially receive the tool shank and a blocking element that projects radially into the tool receptacle. The axial positioning of the sleeve is adjustable with respect to the receptacle. 1. A tool holder for a cutting tool having a tool shank , the tool holder comprising:a receptacle which extends in an axial direction; a tool receptacle structured to at least partially receive the tool shank; and', 'a base having a bolt extending outward therefrom in the axial direction,, 'a sleeve disposed in the receptacle, the sleeve havingwherein the axial positioning of the sleeve is adjustable with respect to the receptacle.2. The tool holder of wherein the sleeve is formed in a pot-like manner and includes a sleeve base.3. The tool holder of wherein the sleeve comprises a spring element arranged at a base of the sleeve and wherein the spring element is structured to exert a restoring force on the tool shank when the cutting tool is inserted in the sleeve.4. The tool holder of wherein the sleeve comprises a thread structured to provide for adjustment of the axial positioning of the sleeve with respect to the receptacle.5. The tool holder of wherein the bolt has an externally threaded surface.6. The tool holder of wherein the sleeve includes an outer casing in which the thread is provided.7. The tool holder of wherein the sleeve comprises a portion structured to be engaged by an adjusting tool for adjusting the axial position of the sleeve with respect to the receptacle.8. The tool holder of wherein the sleeve is in the form of a reducing sleeve and is structured to receive the tool shank in a clamping manner.9. The tool holder of wherein the receptacle is subdivided into a front clamping region structured to receive the tool shank in a clamping manner claim 1 , and a ...

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Номер записи: 94
17-12-2015 дата публикации

EXPANSION CHUCK

Номер: US20150360296A1
Автор: Herud Josef K.
Принадлежит:

Expansion chuck () with a base body () and an expansion sleeve () which is surrounded by a receptacle () for a tool, wherein the expansion sleeve () inside the base body () and at the front end () of the receptacle () is connected pressure-tight to the base body (), thus forming a pressure chamber () between the base body () and the expansion sleeve (), characterized in that the expansion sleeve () at the front end () of the base body () extends radially outward to an connecting section (), where it is connected to the base body () in a pressure-tight manner. 119106109369119101039349. An expansion chuck () with a base body () and an expansion sleeve () , which is surrounded by a receptacle () for a tool , wherein the expansion sleeve () inside the base body () and at the front end () of the receptacle () is connected pressure-tight with the base body () , thus forming a pressure chamber () between the base body () and the expansion sleeve () , characterized in that the expansion sleeve () at the front end () of the base body () extends radially outward to an connecting section () , where it is connected to the base body () in a pressure-tight manner.2110303230. The expansion chuck () as claimed in claim 1 , characterized in that the expansion sleeve () has a cylindrical clamping section () and a transition segment () extending radially outward starting from the latter claim 1 , the wall thickness of which roughly corresponds to the wall thickness of the clamping section ().3132. The expansion chuck () as claimed in claim 1 , characterized in that the transition segment () is realized as a bend.41. The expansion chuck () as claimed in claim 3 , characterized in that the bending radius is greater than 1 mm claim 3 , preferably between 1 and 2 mm.5134. The expansion chuck () as claimed in claim 1 , characterized in that the transition segment () has a greater wall thickness than the clamping segment.61109. The expansion chuck () as claimed in claim 1 , characterized in ...

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Номер записи: 95
05-11-2020 дата публикации

HYDRAULICALLY CLAMPABLE TOOL HOLDER OR WORKPIECE HOLDER

Номер: US20200346289A1
Автор: ZIEGLTRUM Franz
Принадлежит:

A device for hydraulically clamping tools or workpieces, a tool holder or workpiece holder for short, has a clamping portion for clamping a tool or workpiece. An interior of the clamping portion has a plurality of chambers which are connected in fluidic communication by way of a channel system. In order to be able to change, in particular increase, the dynamic rigidity of the hydraulically clampable tool/workpiece holder, a central throttle point is arranged in the channel system. The central throttle point has an adjustment element with which a flow cross section in the central throttle point can be changed. 1. A device for hydraulically clamping tools or workpieces , the device comprising:a clamping portion for clamping a tool or a workpiece, said clamping portion having an interior with a plurality of chambers;a channel system fluidically connecting said plurality of chambers;a central throttle point arranged in said channel system; andan adjustment element configured for selectively changing a flow cross section in said central throttle point.2. The device according to claim 1 , wherein said channel system connecting said plurality of chambers has a plurality of supply channels claim 1 , wherein each of said plurality of supply channels leads only to a respective one of said chambers claim 1 , wherein a first supply channel end of the respective supply channel ends in the one chamber and a second supply channel end of the respective supply channel ends in said central throttle point.3. The device according to claim 1 , wherein said adjustment element is an adjustment screw.4. The device according to claim 3 , wherein said adjustment screw is formed with one or more conical portions and/or a cross section of said adjustment screw is smaller than a cross section of said central throttle point.5. The device according to claim 1 , wherein said central throttle point is a cylindrical cavity.6. The device according to claim 1 , wherein a plurality of chambers are ...

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Номер записи: 96
12-11-2020 дата публикации

DEVICE FOR MEASURING AND ADJUSTING THE TOOL HOLDING PORTION OF A SPINDLE

Номер: US20200353582A1
Автор: Wensman Tony Joseph
Принадлежит:

A device for simultaneously measuring and adjusting the tool holding portion of a spindle. The device has a body defining a datum surface providing a magnetic portion and an indicator portion. A socket extends from the magnetic portion, the socket dimensioned and adapted to receive and seat a first component of the tool holding portion on the magnetic portion. A compressible indicator tip extends in an outward-biased manner from the indicator portion, wherein a distance from the distal end of the indicator tip and the indicator portion of the datum surface is displayed along the body. 1. A device , comprising:a body defining a datum surface, the datum surface having a magnetic portion and an indicator portion;a socket extends from the magnetic portion; anda compressible indicator tip extending in an outward-biased manner from the indicator portion in such a way that a distance from the distal end of the indicator tip and the datum surface is displayed along the body.2. The device of claim 1 , wherein the socket is dimensioned to seat a distal end of an elongated component on the magnetic portion.3. The device of claim 2 , wherein the elongated component is a first component of a tool holding portion of a spindle.4. The device of claim 3 , wherein the first component is a spool of a clamp set.5. The device of claim 2 , further comprising one or more rotational engagement structures for rotationally engaging the distal end along its longitudinal axis.6. The device of claim 5 , wherein the one or more rotational engagement structures comprise wrench flats along an inner periphery of the socket.7. The device of claim 1 , further comprising a display device operatively associated the indicator tip for displaying said distance.8. The device of claim 7 , wherein the display device is rotatably connected to the body.9. A device for simultaneously measuring and adjusting a tool holding portion of a spindle claim 7 , comprising:a body defining a datum surface, the datum ...

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Номер записи: 97
28-12-2017 дата публикации

PROCESSING APPARATUS

Номер: US20170368659A1
Автор: MORI Takashi
Принадлежит:

A processing apparatus includes a chuck table having a holding surface for holding a workpiece thereon, and a processing unit. The processing unit includes a spindle, a wheel mount coupled to an end of the spindle and facing the holding surface, a first tool detachably mounted on a mount surface of the wheel mount, the first tool having a first diameter, a second tool mount nonrotatably and axially movably mounted on the spindle over a rear surface of the wheel mount which is opposite the mount surface, the second tool mount having a storage region for the wheel mount and the first tool, a second tool mount member surrounding the storage region and having an inside diameter larger than the first diameter, and a second tool detachably mounted on the second tool mount and having an inside diameter larger than the first diameter. 1. A processing apparatus comprising:a chuck table having a holding surface for holding a workpiece thereon; andprocessing means for processing the workpiece held on the holding surface of said chuck table;wherein said processing means includes a spindle,a motor for rotating said spindle about its own axis,a wheel mount coupled to an end of said spindle and facing the holding surface of said chuck table,a first tool detachably mounted on a mount surface of said wheel mount, said first tool having a first diameter,a second tool mount nonrotatably and axially movably mounted on said spindle over a rear surface of said wheel mount which is opposite the mount surface of said wheel mount, said second tool mount having a storage region for storing therein said wheel mount and the first tool mounted on said wheel mount, and a second tool mount member surrounding said storage region and having an inside diameter larger than said first diameter,a second tool detachably mounted on said second tool mount and having an inside diameter larger than said first diameter, andmoving means for moving said second tool mount in axial directions of said spindle, ...

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Номер записи: 98
27-12-2018 дата публикации

ADAPTER SLEEVE AND CUTTING DEVICE

Номер: US20180369931A1
Автор: BOREGOWDA Santhosha Borapura, HANUMESHACHAR Gururaj Bommagatti, Herud Josef Konrad
Принадлежит:

An adapter sleeve is described for inserting into an expansion chuck of a cutting device with a substantially cylindrical body that defines a longitudinal axis (L) of the adapter sleeve and a seat area for a cutting tool. The body comprises an axial front end and an axial rear end opposite the front end by means of which the adapter sleeve can be inserted into the expansion chuck of the cutting device. An outlet element is provided at the axial front end through which a coolant can be discharged toward the cutting tool. At least one cooling line extends along the body up to the outlet element and comprises a body line section and an outlet element section. At least one channel-like outlet nozzle is formed in the outlet element and is in fluidic connection with the at least one cooling line. The flow cross-section of the cooling line decreases or remains the same toward the axial front end. In addition, a cutting device is described. 1. An adapter sleeve for inserting into an expansion chuck of a cutting device , the adapter sleeve comprising a substantially cylindrical body that defines a longitudinal axis (L) of the adapter sleeve and a seat area for a cutting tool ,wherein the body comprises an axial front end and an axial rear end opposite the front end by means of which the adapter sleeve can be inserted into the expansion chuck of the cutting device,wherein an outlet element is provided at the axial front end through which a coolant can be discharged toward the cutting tool,wherein at least one cooling line extends along the body up to the outlet element and comprises a body line section and an outlet element section, wherein at least one channel-like outlet nozzle is formed in the outlet element and is in fluidic connection with the at least one cooling line, and wherein the flow cross-section of the cooling line decreases or remains the same toward the axial front end.2. The adapter sleeve according to claim 1 , characterized in that the flow cross-section of ...

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Номер записи: 99
26-11-2020 дата публикации

Chuck correction method

Номер: US20200368825A1
Автор: Tamio Nishimiya
Принадлежит: Kitagawa Iron Works Co Ltd

The present disclosure improves the accuracy of matching the center of the workpiece with the rotation center of the chuck. It provides a chuck correction method for a chuck including a body, a plunger, and jaws, the body including a rear body and a front body provided in a front side of the rear body, the plunger provided inside the body and configured to move along an axis of the body, and the jaws each configured to move in a radial direction of the axis while guided by the front body along when the plunger moves, the chuck correction method including: a correction step including moving the front body in the radial direction of the axis with a position of the rear body keeping with respect to the axis in a state that a workpiece is clamped in the jaws.

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Номер записи: 100