Motor mit Schneidwerkzeug-Befestigungsöffnung

Motor mit einer Schneidwerkzeug-Befestigungsöffnung, gekennzeichnet durch: ein zylindrisches Motorgehäuse, das an seinen beiden Enden in Axialrichtung dicht verschlossen ist; eine Durchgangsöffnung, die in einem Zentrum von mindestens einem Endplattenbereich des Motorgehäuses ausgebildet ist; eine Motorwelle, bei der ein Wellenendteil durch die Durchgangsöffnung hindurch freiliegt; eine Schneidwerkzeug-Befestigungsöffnung, die in einem zentralen Bereich einer Endfläche des Wellenendteils der Motorwelle ausgebildet ist; ein Lager zum Abstützen der Motorwelle in einer derartigen Weise, dass sich die Motorwelle relativ zu dem Endplattenbereich drehen kann, wobei das Lager zwischen einem inneren Umfangsrandende der Durchgangsöffnung in dem Endplattenbereich und einem Außenumfangsflächenbereich des Wellenendteils der Motorwelle angebracht ist; eine ringförmige Kontaktdichtung mit einem flexiblen Material zum Abdichten eines Raums zwischen dem inneren Umfangsrandende der Durchgangsöffnung und ...

WERKZEUGMASCHINE MIT EINER DICHTUNGSVORRICHTUNG

Bohr- und Meisselgerät

Rock or mineral boring appts. - has damping component surrounding bore rod and joined to front of support pallet to reduce noise and dust

The rock or mineral boring appts. is designed to reduce noise and build up of dust. A bore drive is mounted on a gun carriage and is slidable by means of a drive component. The driven bore rod is guided at the front of the gun carriage via a support pallet. A clamping component is sealed against sound, surrounds the bore rod, and is joined to the front side of the support pallet. At least a front edge of the damping component is flexible. The connection between the support pallet and damping component can be articulated by eg a bellows.

Halterantriebseinheit

Improvements in Protecting Machinery against Dust.

... 711. Fortuna-Werke, A. Hirth. Jan. 19, 1914, [Convention date]. Dust, excluding. - To protect gearing against the access of dust, the parts are enclosed in a chamber in which is maintained an air pressure higher than that of the external air. The air escaping from the chamber prevents the entrance of dust. As applied to a grinding - wheel a, the toothed gearing f is enclosed by caps i, k, p, and compressed air is supplied through a pipe l, passing through a passage m to the chamber o.

Spindle assembly and cutting unit

Spindle assembly and cutting unit

MAIN SPINDLE DEVICE

STRIPPING POETRY AND MEANS FOR APPLYING FLUID PRINTING ON THIS POETRY

SEAL FOR SPINDLES

SEALING DEVICE FOR A COOLING AGENT SUPPLY ON A ROTATING SPINDLE AND MACHINE TOOL COMPRISING SUCH A SEALING DEVICE

A sealing device for a coolant supply on a rotating spindle is characterized in that a first brush seal (4) and a second brush seal (5) are arranged one after another in series on the spindle (2) Hereby the technical problems of the prior art are avoided and an improved device is made available, which makes possible a reliable sealing of the supply of coolant to a quickly rotating tool spindle, which exhibits no sudden failure, and which nonetheless is cost-advantageous in production and installation.

PLASTIC SLINGER WITH CONTACTING BUMPER FEATURE WITH LABYRINTH

A seal assembly includes a housing defining a bore and a shaft received in the bore. A seal member is secured to the housing for sealing a gap between the housing and the shaft. A slinger is secured to the shaft. The slinger being made from plastic and including a first semi-circular part and a second semi-circular part that is secured to the first semi-circular part. The slinger includes a radially extending wall portion with a raised bumper feature at a radially outer surface opposing the seal member. The slinger further includes an axially protruding labyrinth feature extending from the radially extending wall portion and toward the seal member. The first semi-circular part and the second semi-circular part can be snap fit to one another.

Ausgleichvorrichtung zum axialen verzugsfreien Aufspannen von Wälzlagern auf eine Welle

Rock-drilling apparatus

PROCEDURE FOR THE WAVE SEALING AND DEVICE FOR THE EXECUTION OF THE PROCEDURE.

Machine comprises an oil mist detector and a temperature monitoring module for monitoring the lubricant state via temperature monitoring channels and the temperature at bearing positions and on the stator

Machine comprises an oil mist detector and a temperature monitoring module for monitoring the lubricant state via temperature monitoring channels (211, 211) and the temperature at bearing positions (213, 214) and on the stator. A vibration monitoring module is connected to a vibration detector in the main shaft seat via a monitoring line. The temperature monitoring module has a sensor chip for switching off and recording the operating time of the shaft and the current supply time. Preferred Features: A positioning screw nut and a T-shaped screw nut are arranged on the upper part of a rotating shaft (25) to adjust the floating region of the rotating shaft.

Dispositif de changement d'outil pour une machine-outil

Dispositif de changement d'outil pour une machine-outil comprenant une tete de broche montee sur cette machine et une broche d'outil portee a rotation a l'interieur de la tete de broche pour supporter un porte-outil standard insere dans cette tete de broche. Un bras de changement d'outil comporte deux griffes d'outil 43 munies chacune d'une premiere partie de griffe 43A destinee a venir en contact avec un couvercle de protection 24 et une seconde partie de griffe 43B destinee a venir en contact avec un porte-outil de grand diametre 30. Application aux broches de machines-outils munies d'une couronne dentee d'indexation.

WATERPROOFING SYSTEM FOR an INCREMENTAL ROTARY SENSOR

PUNCHING APPARATUS OF ROCK

L'invention concerne un appareil perforateur de roche. Cet appareil comporte un entraînement de perforation qui peut coulisser sur un affût au moyen d'un organe d'entraînement et qui agit sur une tige porte-foret guidée par une plaque de soutien à l'extrémité antérieure de l'affût. A un côté antérieur de la plaque de soutien est relié avec insonorisation un élément d'amortissement entourant la tige porte-foret; dans cet appareil au moins un bord antérieur de l'élément d'amortissement est élastique. L'invention s'applique à la perforation des roches dans les mines.

ROTARY SHAFT APPARATUS AND ELECTRIC DISCHARGE MACHINE USING SAME

The present invention provides a rotary shaft apparatus which has long life of sealing performance, and an electric discharge machine using the same. The rotary shaft apparatus (24) comprises a power unit (2) or a decelerator (3) arranged in a casing (1) of the rotary shaft apparatus (24). A bearing support unit (7) is installed on the front end of the casing (1). A shaft (5) and a rotary table (6) are fixed on both sides of a bearing unit (4). The shaft (5) and the rotary table (6) are synchronized with rotation of the decelerator (3) and can freely rotate. A seal mechanism (8) is formed near the bearing support unit (7), and a sealing material (9) is installed in the seal mechanism (8). A pipe line (10) for supplying a clean fluid is formed adjacent to the seal mechanism (8) in the casing (1). The clean fluid flows in a gap (11) between the seal mechanism (8) and the rotary table (6) to prevent the fluid containing sludge from coming in contact with the sealing material (9). The clean ...

Machine tool spindle

A machine tool has a spindle with a splayed taper at the tool-holding tip, the taper expanding outwards in the direction away from the supporting bearings. Due to centrifugal forces, any cutting fluid (scattered by cutting operations) that reaches the surface of the taper tends to move on the surface of the taper and scatter away from the bearing, avoiding the intrusion of cutting fluid into the bearing. A flange having an internal taper matching the splayed taper of the tool-holding tip can be provided around the tip, making it more difficult for cutting fluid to reach the clearance between the tapers and further encouraging any intruding fluid to move and scatter away from the bearing.

Loader and unloader for machine tool

Loader and unloader mechanism (10) for a machine tool having a workpart-holding spindle (14) wherein a workpart load tube (32) and unload tube (34) and associated workpart loading fluid cylinders (40, 42) are arranged relative to a tool-carrying turret (20) in a manner that workparts (W) are fed to the spindle (14) through the load tube (32) and removed from the spindle after machining to a workpart holder (33) on the tool-carrying turret (20), which then positions the workpart holder between an unloading tube (34) and a workpart unloading fluid cylinder (76) where the workpart is ejected from the workpart holder into the unload tube.

Dust-proof element and a method of its use in an electrical hand-held tool and with a working tool

A dust-proof element for reducing creeping dispersion of dust along a free surface formed as one of locally limited dust trap element (5) and dust barrier (7) having a surface with an artificial pimpled microcrystalline structure with bumps and indentations having a size in a range from 5 to 100 mum and spaced from each other by a distance from 5 to 200 mum, and a method of protecting hand-held tools and working tools with the dust-proof element.

Spindle apparatus

A spindle apparatus of a machine tool comprises a main spindle rotatably supported in a housing via bearings. A helium circulation system is provided for introducing helium, lower in density and fluid pressure than air, through a helium supply port into a gap on the outer periphery of the main spindle within the housing, and for discharging helium to the outside through a helium discharge port. The main spindle is rotated in an atmosphere of the helium. The spindle apparatus is simple in structure, but can minimize the power loss of the main spindle and reduce the motor power, and also gives a cooling effect.

MACHINE TOOL

The machine tool comprises a headstock provided with a main spindle; a driving unit which moves the headstock in a main spindle axial direction and has a feed mechanism extended in the main spindle axial direction and a front end supporter which rotatably supports a front end of the feed mechanism; a first front cover mounted on the headstock in a first position between the main spindle and the feed mechanism with respect to a diameter direction from a main spindle axis toward the feed mechanism; and a second front cover mounted on the front end supporter in a second position between the main spindle and the feed mechanism. Part of the feed mechanism is covered by both of the first front cover and the second front cover when at least part of the first front cover is on the rear side of the second front cover. 1. A machine tool comprising:a headstock provided with a main spindle for gripping a workpiece;a driving unit which moves the headstock in a main spindle axial direction, the driving unit being provided with a feed mechanism extended in the main spindle axial direction and a front end supporter which rotatably supports a front end of the feed mechanism;a first front cover mounted on the headstock in a first position between the main spindle and the feed mechanism with respect to a diameter direction from a main spindle axis toward the feed mechanism; anda second front cover mounted on the front end supporter in a second position between the main spindle and the feed mechanism with respect to the diameter direction;wherein part of the feed mechanism is covered by both of the first front cover and the second front cover when at least part of the first front cover is on the rear side of the second front cover.2. The machine tool of further comprising a supporting bed on which a guide bush is detachably mounted claim 1 , the guide bush supporting the workpiece in a slidable manner on the front side of the main spindle claim 1 ,wherein at least one of the first ...

Chip suction cover and machine tool

A chip suction cover is used for a machine tool including: a spindle configured to rotate a tool; and a suction mechanism unit configured to suck chips of a workpiece that are produced in accordance with rotation of the tool. The chip suction cover includes: a hollow body that is provided with an opening through which a rotation central axis of the spindle extends and that is arranged so as to surround the tool; and a cover body that is provided in the hollow body so as to partially close the opening and that is configured to cover a part of a tip end portion of the tool while exposing a remaining part of the tip end portion of the tool. A chip suction cover having such a configuration that improves the efficiency of sucking chips produced due to workpiece machining is provided.

Dust protection unit, for e.g. electric hand tool, comprises dust trap or barrier, with microcrystalline surface of raised areas and depressions of specified size/spacing

A dust protection unit, comprises a dust trap (5) or barrier (7) where the dust particles stick to the top of the trap or barrier. The surface has a synthetic microcrystalline structure with raised areas and depressions in the region 5-100 mu m. The raised areas and depressions have a spacing of between 5 and 200 mu m.

Improvements in pneumatic tools

... 640,370. Silencing gaseous currents. CHERAIN, O. J. H. June 19, 1947, No. 16239. Convention date, July 31, 1946. [Class 7(ii)] [Also in Group XXIII] An exhaust deflector for a pneumatic percussive tool comprises a hollow body 5 having triangular baffles 6, a perforated plate 4 at the inlet end, and a screen 8 at the outlet end which latter is surmounted by a jet 9, the aperture of which may be cut by a rib.

PROTECTION HOOD FOR ROUTING MACHINES

HYDRAULIC HAMMER WITH FILTER SYSTEM FOR DUST INTAKE TO TOOL

TOGETHER HAS PIN DEMACHINE-OUTIL OF PRECISION

DUST PREVENTING STRUCTURE OF GUIDE UNIT

This invention relates to a dust preventing structure of a guide unit comprising a track shaft and a sliding member engaging the track shaft via a plurality of rolling bodies such that it is capable of reciprocating in a length direction thereof. Elastic members in firm contact with the track shaft are overlaid in the length direction of the track shaft. A lubricant pocket forming member having a concave groove portion for forming a lubricant pocket constituted of the elastic members and filled with lubricant by a help of the surface of the track shaft as well is provided so as to achieve a smooth reciprocating motion of the sliding member with respect to the track shaft with less sliding friction. Particularly, under even a severe use condition in which use of coolant is required or dust, dirt, wooden pieces, cutting powder or the like falls on the guide unit, a smooth reciprocating motion of the sliding member with respect to the track shaft can be maintained in a long period.

Electric actuator

An electric actuator has a body with a hole defined therein and an electric motor fixed to an end of the body. The electric motor has a rotatable shaft to which a feed screw is coaxially connected, and a feed nut is threaded over the feed screw. The hole receives an elongate cylindrical tubular member slidably fitted therein which surrounds the feed screw. The feed nut is secured to an end of the tubular member, and a support for feeding a workpiece supported thereon is fixed to the other end of the tubular member. The feed screw, which serves as a drive force transmitting shaft, is protected by the surrounding tubular member from the deposition thereon of dust, dirt, or other foreign matter and hence from unwanted shutdown or breakage.

MACHINE TOOL AND TOOL HOLDER

A machine tool having a turning function and a milling function includes a spindle, a spindle housing supporting the spindle in a rotatable manner, a main clamp provided at the spindle, an auxiliary clamp provided at the spindle housing, and a double arm with a first gripper and a second gripper. The auxiliary clamp clamps a tool holder together with the main clamp during fixing a fixed tool. The double arm exchanges a tool holder grasped at the first gripper for another tool holder grasped at the second gripper by rotating and sliding movements. The auxiliary clamp is arranged at a position not interfering with the double arm that moves during exchanging tool holders. By such a configuration, a machine tool achieving a clamping force sufficient to withstand the load during a turning process, and that allows tool exchange in a short period of time, and a tool holder employed in such a machine tool, can be provided.

Combined type angle head milling cutter for machining mounting faces of axial bearing

A combined type angle head milling cutter is configured to machine mounting faces of an axial bearing. The combined type angle head milling cutter includes an angle head body, a lock nut, first slotted countersunk head screws, a first hexagon socket head cap screw, a first flat key, semicircle seal covers, first angular contact ball bearings, a cutter handle shaft lower adjusting pad, a cutter handle shaft, a cutter handle shaft upper adjusting pad, a bearing cover plate, a first bevel gear, a first spring washer, a second bevel gear, a bevel gear adjusting pad, an orientation shaft, cutter shaft inner-side seal covers, second hexagon socket head cap screws, a cutter shaft outer-side seal cover, a second slotted countersunk head screw, a small seal ring and the like.

MACHINE TOOL

A chip antiscatter mechanism is included and configured to suppress scattering of chips generated during machining of a machining object. The chip antiscatter mechanism includes chip stirring means configured to stir the chips, by jetting a gas into a dry machining region above a table including the machining object, fluid curtain forming means configured to form a fluid curtain by jetting a fluid such as liquid or gas membranously from above to an outside of the dry machining region so as to surround the dry machining region, and to form a closed region including the dry machining region by the membranous fluid curtain, and discharging means configured to receive and discharge the fluid jetted membranously by the fluid curtain forming means. 1. A machine tool comprising a spindle with a tool attached to , and a table configured to support a machining object , the machine tool configured to perform machining to the machining object by the tool while relatively moving the spindle and the table , the machine tool comprising:a chip antiscatter mechanism configured to suppress scattering of chips generated from the machining object by the machining,the chip antiscatter mechanism including:chip stirring means configured to stir the chips, by jetting a gas into a dry machining region above the table, the dry machining region including the machining object;fluid curtain forming means configured to form a fluid curtain by letting a fluid such as liquid or gas membranously from above to an outside of the dry machining region so as to surround the dry machining region, and to form a closed region by the membranous fluid curtain, the closed region including the dry machining region; anddischarging means configured to receive and discharge the fluid jetted membranously by the fluid curtain forming means.2. The machine tool according to claim 1 , whereinthe fluid curtain forming means includes a fluid curtain forming nozzle configured to jet the fluid, and fluid supply means ...

DUST PREVENTING STRUCTURE OF GUIDE UNIT

This invention relates to a dust preventing structure of a guide unit comprising a track shaft and a sliding member engaging the track shaft via a plurality of rolling bodies such that it is capable of reciprocating in a length direction thereof. Elastic members in firm contact with the track shaft are overlaid in the length direction of the track shaft. A lubricant pocket forming member having a concave groove portion for forming a lubricant pocket constituted of the elastic members and filled with lubricant by a help of the surface of the track shaft as well is provided so as to achieve a smooth reciprocating motion of the sliding member with respect to the track shaft with less sliding friction. Particularly, under even a severe use condition in which use of coolant is required or dust, dirt, wooden pieces, cutting powder or the like falls on the guide unit, a smooth reciprocating motion of the sliding member with respect to the track shaft can be maintained in a long period.

CUTTING TOOL DEVICE FOR MACHINE TOOL

Tool spindles

Drehtischvorrichtung

Drehtischvorrichtung, umfassend: ein Gehäuse (10); einen in dem Gehäuse (10) untergebrachten Motor; einen an einem Ende der Abtriebswelle des Motors befestigten Tisch; einen Luftauslassweg (22), die Luft aus dem Inneren des Gehäuses (10) nach außen abgibt; und eine Druckregeleinheit, wobei das Gehäuse (10) aufweist: einen ersten Raum (11) und einen zweiten Raum (12), die durch ein Unterteilungsglied (14) getrennt sind; einen ersten Luftzufuhrweg (16), der Luft an den ersten Raum (11) liefert; einen zweiten Luftzufuhrweg (18), der Luft an den zweiten Raum (12) liefert; und ein Rückschlagventil (28), das sich in dem Unterteilungsglied (14) befindet, wobei der Luftauslassweg (22) Luft aus dem zweiten Raum (12) des Gehäuses (10) nach außen abgibt, und die Druckregeleinheit kontinuierlich den Druck des ersten Raums (11) und den Druck des zweiten Raums (12) auf einen Druck über dem Außendruck regelt, und im stationären Zustand den Druck des ersten Raums (11) auf einen Druck über dem Druck des ...

HYDROSTATIC SEAL FOR MACHINE TOOL SPINDLES

... 1367973 Milling machines; machine tool details GIDDINGS & LEWIS Inc 11 Jan 1972 [13 Jan 1971] 1129/72 Headings B3B and B3K [Also in Division F2] A contour milling machine 10, Fig. 1, is provided with a swivel base 17 and a swivel saddle 20 which supports a headstock 11 carrying a cutting tool 23, the movements of the headstock and tool being numerically controlled. As shown in Fig. 2, the headstock 11 consists of a spindle 34 which is mounted by bearings 35, 36 in a cylindrical quill 32 supported within a housing 30, the bearings being preloaded by an annular piston 39 and supplied with cooled lubricating oil through passages 43 and 44. The spindle is driven by a bull gear 37 and sealed by a hydrostatic seal 45 (Division F2) to which compressed air is supplied through passages 57. The seal of the invention can also be applied to spindles which both rotate and move axially such as in machines for drilling, boring or tapping. In Fig. 7 (not shown) the spindle is mounted in hydrostatic bearings ...

MILLING SPINDLE OF A MACHINE TOOL WITH COOLING BY THE SPINDLE

MACHINE TOOL AND COVER DEVICE FOR THE MACHINE TOOL

A machine tool and a cover device for the machine tool capable of preventing work cutting chips and cutting lubricant from falling on the rear part of a spindle head (8) and the operating positions of a first saddle (4) and a second saddle (6) without expanding the lateral width of the machine tool, wherein a column (2) is fixedly installed on a bed (1), the first saddle (4) is guided on the front surface of the column (2) movably in vertical direction (f1), the second saddle (6) is guided on the front surface of the first saddle (4) movably in lateral direction (f2), and the spindle head (8) is guided on the second saddle (6) movably in longitudinal direction (f3) and, in addition, a first cover plate (31) is fixed to the second saddle (6), a side cover plate (33) is installed continuously with each of the right and left side edges of the cover plate (31) bendably in longitudinal direction (f3), a second cover plate (39) is fixed integrally with the first saddle (4), and a third cover ...

A CUTTING EDGE APPARATUS OF A MACHINE TOOL

The present invention is characterized by a cutting edge apparatus for machi ne tool comprising a cutting edge for flat cutting fixed to the tip end of a rotation axle, a suction cover for sealing a circumference of the cutting edge except a front face thereof, a hood which is extendable forward therefrom as well as displaceabl e back and forth within a fixed range, the hood being fixed to the rim of the sucti on cover, and an energizing means for giving forward force to the hood.

TOOL CHANGING DEVICE FOR A MACHINE TOOL

ENSEMBLE A BROCHE DEMACHINE-OUTIL DE PRECISION

L'invention concerne les constructions mécaniques. L'ensemble à broche faisant l'objet de l'invention est caractérisé en ce qu'il comprend des moyens empêchant l'air atmosphérique contenant des particules susceptibles d'encrasser ou de polluer la graisse d'être aspiré dans le corps 1 de l'ensemble à broche à travers le joint à labyrinthe 5 du couvercle arrière 3, lesdits moyens se présentant sous forme d'un canal 10 dont l'orifice d'entrée 11 communique avec l'atmosphère, et l'orifice de sortie 12, avec l'espace libre 9 entre la bride 8 de la broche 7 et le couvercle avant 2. L'invention s'applique notamment aux ensembles à broche des aléseuses-finisseuses.

JOINTS A GLACES A DIAPHRAGME

Joint à glaces à diaphragme dont le dispositif d'application élastique de la glace mobile est constitué par un diaphragme annulaire de forme initialement plane, fixé par sa périphérie dans ledit support, et que le dispositif d'étanchéité statique est constitué par un joint annulaire souple élastique en contact à la fois avec le diaphragme au voisinage du bord central de celui-ci, avec un alesage cylindrique pratiqué dans le support, et avec une portée extérieure conique pratiquée sur la glace fixe du côté opposé à sa surface d'application sur la glace mobile Application aux broches d'alésage ...

PUNCHING APPARATUS OF ROCK

Lathe

Provided is a lathe in which a main shaft can be shortened. A lathe 1 is provided with: a main shaft 12; a main shaft support portion 11 that supports, at the outer side S4 of the main shaft 12, the main shaft 12 via a bearing B0; a collet 25 disposed at a front end 13 of the main shaft 12; an inner ring holding portion (40) that is provided to the main shaft 12 and that holds the front side S1 of an inner ring B1 of the bearing B0; an outer ring holding portion (50) that is provided to the main shaft support portion 11 and that holds, at the outer side S4 of the inner ring holding portion (40), the front side S1 of an outer ring B2 of the bearing B0; a cap member (60) that is, at the front side S1 of the inner ring holding portion (40), screwed on the main shaft 12 and that is disposed at the outer side S4 of the collet 25 centered on the main shaft center line AX0; and a cover member (70) that has an inner circumferential surface 71 opposed to the outer circumferential surface 62 of the ...

High speed hydrostatic spindle

An integrated spindle and motor unit includes a housing containing both the spindle shaft and motor with hydrostatic bearings around the front and rear of the spindle shaft. The hydrostatic bearings utilize high pressure oil, preferably in the range of 1,200-1,500 psi and provide good load bearing capacity and increased stiffness for improved cutting accuracy when cutting within the full range of cutting speeds. The present spindle unit is designed to be run at high speeds. The front and rear hydrostatic bearing pads are closely axially spaced along the spindle shaft so that the dynamic stiffness of the spindle is increased to avoid resonant vibrations even at high speed operation thereof. The spindle unit incorporates a sealing system utilizing a series of non-contacting seals including a labyrinth seal and aerostatic floating ring seals which keeps bearing oil in the spindle. The aerostatic ring seals have air restrictor openings therein to create an aerostatic air film that also keeps ...

Dust-proof element and a method of its use in an electrical hand-held tool and with a working tool

A dust-proof element for reducing creeping dispersion of dust along a free surface formed as one of locally limited dust trap element (5) and dust barrier (7) having a surface with an artificial pimpled microcrystalline structure with bumps and indentations having a size in a range from 5 to 100 μm and spaced from each other by a distance from 5 to 200 μm, and a method of protecting hand-held tools and working tools with the dust-proof element.

Dust-proof element and a method of its use in an electrical hand-held tool and with a working tool

A dust-proof element for reducing creeping dispersion of dust along a free surface formed as one of locally limited dust trap element ( 5 ) and dust barrier ( 7 ) having a surface with an artificial pimpled microcrystalline structure with bumps and indentations having a size in a range from 5 to 100 μm and spaced from each other by a distance from 5 to 200 μm, and a method of protecting hand-held tools and working tools with the dust-proof element.

Tool eye/setter with improved mean time between failures construction

A tool eye/setter comprising a sealed housing formed from a single piece. Sensor heads are mounted on the four faces of the upper portion of the housing. A shaft connects each sensor head with the inside of the housing. The shaft rests against a rod contact, which in turn rests against a knife contact. Pressure upon the sensor head causes inward motion on the shaft, which in turn pushes the rod contact away from the knife contact, breaking an electrical connection between the two. Rubber seals cover the shaft-and portions of the sensor head that extend into the housing to prevent gas and fluid communication between the inside and outside of the housing. The absence of gas and fluid communication helps to prevent contaminants from getting into the housing and allows the housing to optionally hold an inert gas to prevent corrosion to the electrical contacts.

Preparation method of diene copolymer having improved rolling resistance and wet traction

The present invention provides a method for preparing a copolymer useful for the manufacture of tires by coupling the ends of a living polymer, obtained from copolymerization of a diene monomers in the presence of an organolithium initiator and a hydrocarbon solvent, with a multi-reactive polysiloxane compound, and subsequently modifying the remaining uncoupled ends of the polymer with an amine compound. The use of the copolymer thus obtained for tire production improves the affinity to silica and greatly enhances the dynamic properties required for tires, such as wet traction and rolling resistance.

Preparation method of diene copolymer having improved rolling resistance and wet traction

The present invention provides a method for preparing a copolymer useful for the manufacture of tires by coupling the ends of a living polymer, obtained from copolymerization of a diene monomers in the presence of an organolithium initiator and a hydrocarbon solvent, with a multi-reactive polysiloxane compound, and then completing the reaction or subsequently modifying the remaining uncoupled ends of the polymer with an amine compound. The use of the copolymer thus obtained for tire production improves the affinity to silica and greatly enhances the dynamic properties required for tires, such as wet traction and rolling resistance.

Self-cleaning drill chuck

A chuck includes a generally cylindrical body having a nose section and a tail section. The tail section is configured to rotate with the drive shaft, and the nose section has an axial bore formed therein. The body defines an air passageway extending through the body between the axial bore and an area about the tail section. A generally cylindrically sleeve is disposed about the body and substantially encloses the area. It is configured to extend to a housing of the drill so that air from the fan is forced into the area, through the air passageway and into the axial bore.

MACHINE TOOL

The invention relates to a machine tool, in particular a lathe grinding machine, comprising a tool spindle having a collet and a spindle motor, wherein the collet has at least two clamping jaws which are actuatable for receiving and releasing a tool, and comprising an air channel which runs radially on the outside of the collet, wherein the air channel is configured as a sealing air channel (42) and forms a positive pressure chamber (44) at least partially above the clamping jaws (26).

Befestigungselement und Spindelvorrichtung

Eine Spindelvorrichtung (10) enthält: eine Spindel (12); ein Spindelgehäuse (14), das ein Lager aufweist, das so konfiguriert ist, dass es die Spindel (12) drehbar stützt; ein Drehelement (16), das an einem Ende der Spindel (12) angeordnet ist; und ein Befestigungselement (22A), das so konfiguriert ist, dass es die Spindel (12) befestigt, sodass die Spindel (12) nicht relativ zu dem Spindelgehäuse (14) drehbar ist.

WERKZEUGMASCHINE, INSBESONDERE MEHRFACHSPINDEL-FRÄSMASCHINE

Die vorliegende Erfindung betrifft Ausführungen einer Werkzeugmaschine, insbesondere Mehrfachspindel-Fräsmaschine, mit einem Maschinengestell 2, einer Werkstückspanneinrichtung 2 zum Einspannen eines Werkstücks WS, einer an dem Maschinengestell 1 angeordneten Achsschlitten-Baugruppe 3, und einer an dem Maschinengestell 1 angeordneten Spindelträger-Baugruppe mit zumindest zwei werkzeugtragenden Arbeitsspindeln S1 und S2. Die Achsschlitten-Baugruppe 3 ist dazu eingerichtet, das an der Werkstückspanneinrichtung 2 eingespannte Werkstück WS mittels drei steuerbarer Linearachsen X, Y und Z linear zu verfahren. Die Arbeitsspindeln S1 und S2 sind an einem um eine Revolverachse rotierbaren bzw. verschwenkbaren Revolver 4 in jeweils gleichem Abstand zur Revolverachse angeordnet, und die Spindelachsen der Arbeitsspindeln S1 und S2 sind parallel zueinander und parallel zur Revolverachse ausgerichtet bzw. ausrichtbar.

Elektrisches Stellglied

Drehtischvorrichtung

Das Innere eines Gehäuses einer Drehtischvorrichtung ist in einen ersten Raum und einen zweiten Raum unterteilt. Der Druck des ersten Raums wird im stationären Zustand auf einen Druck reguliert, der höher ist als der Druck des zweiten Raums. Der Zusammenhang zwischen den Drücken wird zu gewissen Zeiten umgekehrt, damit der Druck des zweiten Raums größer wird als der Druck des ersten Raums. Durch diesen Vorgang kann ein Rückschlagventil regelmäßig zwangsweise geschlossen werden, das zwischen dem ersten Raum und dem zweiten Raum angeordnet ist. Dadurch wird eine Funktionsstörung des Rückschlagventils verhindert.

ATTACHMENT WITH AIR EJECTOR

MACHINE TOOL WITH A SEALS DEVICE

SAFETY DIVICE FOR WOODWORKING MACHINE

DEVICE FOR THE TREATMENT OF AN EYEGLASS LENS

MAIN SPINDLE DEVICE

RETRACTABLE SELF-LOCKING CLEAT FOR ROPE, CABLE AND THE LIKE

A retractable self-locking cleat for rope, cable and like including means forming a base (60) that can be mounted to a truck body, deck or other surfaces which includes an opening into which a self-locking cleat component can be retracted. The cleat component (80) is pivotally secured to the base (60) and can be rotated into and out of the recess. The pivotable connection between the self-locking cleat component (80) and the base (60) may include a pivot pin (78) and slot configuration that permits the cleat component to be maintained in its extended position once rotated thereinto or until it is repositioned so that it can be pivoted into its retracted position. In an alternative embodiment, the base is formed into a classical, fixed cleat configuration having a cavity formed in its midsection for receiving a retractable self-locking cleat component pivotally attached to the fixed base.

HYDROSTATIC SEAL FOR MACHINE TOOL SPINDLES

Seal for rotating sensor fitted to machine tool

Un capteur rotatif (11) logé dans un alvéole (3, 8) entre un ensemble tournant (1) et un ensemble fixe (4) d'un appareil est protégé de l'infiltration et des éclaboussures de lubrifiant par divers moyens d'étanchéité (37, 40, 41, 51, 52) qui entourent son axe (13) et couvrent la face supérieure de son boîtier (12).

Main spindle device of machine tool

CUTTING TOOL DEVICE FOR MACHINE TOOL

Ce dispositif de coupe, destiné à une machine-outil, comprend un outil de coupe (2) destiné à couper un plan, fixé sur l'extrémité d'un arbre de rotation (1) et pourvu d'un couvercle d'aspiration (10) recouvrant de manière étanche à l'air les portions environnantes, excepté une face de l'extrémité (a) de l'outil de coupe (2). Ce dispositif est caractérisé en ce qu'un capot (19) est fixé sur le bord d'ouverture de l'extrémité du couvercle (10), de façon à s'étendre vers l'avant à partir de ce couvercle et à pouvoir être déplacé longitudinalement d'une distance limitée, et en ce que des moyens de poussée (24) servent à pousser le capot (19) vers l'avant, de sorte que les copeaux (w1) produits par l'outil de coupe (2) peuvent être réellement aspirés et évacués lors de l'utilisation de l'outil, dans l'une quelconque des étapes de dégrossissage ou de finition.

Protective hood for wood milling machines

Disclosed is a protective hood for a wood-milling machine to cover a milling spindle which projects vertically out of a horizontal machine table. The protective hood is formed of two side walls connected to one another by a cover and a rear wall, and a front, vertically adjustable protective shield. The protective hood has a connection stub for an extraction device and can be attached adjustably to the machine table. A holding member for the removable attachment of a stop plate is releasably attached to each of the two side walls of the protective hood. In this way, the protective hood is permanently available as a basic element, so that when changing from curved milling to milling against a stop, it is easy to fit the stop plates.

SEAL FOR SPINDLES

The aim of the invention is to simplify and improve the sealing of spindles. To this end, brush seals are used for the main seal (5) of spindle devices. Brush seals exhibit outstanding sealing properties, preventing especially any lubricant from spreading outside the bearing (3). According to the invention, the brush seal can also be used for rotational introduction elements which are used, for example, to introduce a lubricant into the bore hole of a tool spindle.

Protecting device for wood lowering machines

Protecting device for wood lowering machines. It consists of two vertical walls (1) lined up longitudinally with a space for cutting element, a plurality of groove guides (2) in the mentioned walls, occupied by the respective slide rods (3), which ones are liable to close the mentioned space and maintain only opened the useful working area, means for avoiding the incorrect introduction, means for avoiding the moving back of the piece of wood, and means for fixing the same device to the planer machine's bed and because it includes a first element formed by a slide flatbar (5) on the top of the vertical wall (1), an element in between (6), and fixation elements (7), which they are liable to cross the mentioned slide flatbar (5) and then press the mentioned element in between (6), immobilizing all of said slide rods.

Werkzeugmaschine mit ausblasbarer Werkzeugaufnahme

Machine tools

The bearing of a machine tool spindle is sealed by a pair of wiping seals mounted on the shaft and resiliently urged into contact with opposite faces of a stationary ring through which the shaft extends. The very small clearance between the ring and the shaft is fed with gas for example air at low pressure. When there is no gas supply and for example when the shaft is stationary the seals contact the ring and the resilience ensures good contact and prevents seepage of for example lubricant along the shaft from one side of the seals to the other. When the shaft is to be driven, low pressure gas is supplied and this pressure deflects the seals to lift them from the face of the ring so that there is no frictional engagement and either power loss or heat generation, and any liquid which does go past the seals is thrown outwardly by centrifugal force and driven by the escaping gas.

Spindle assembly and cutting unit

Disclosed is an improved spindle assembly comprising a spindle (21) having a blade mount (24 or 29) attached to its end for mounting a cutting blade (13) thereto, and a housing (11) having the spindle air-suspended in the radial and thrust directions. The housing (11) has an anti-contamination cover (25 or 32) placed between the spindle and the spindle housing, thereby preventing debris from invading the space (27) between the spindle and the housing. Also, disclosed is a cutting unit (10 or 30) equipped with the improved spindle assembly.

Improvements in pneumatic picks

... 623,643. Pneumatic picks. ATELIERS DE CONSTRUCTIONS MECANIQUES ARMAND COLINET. July 30, 1946, No. 22717. Convention date, Dec. 13, 1945. [Class 124] In a pneumatic pick a fluidtight packing for the steel 4 comprises one or more rings 7, 8 lodged in an enlargement 6 of the bore 5 of the front head 1, the height of the enlargement being substantially equal to the total thickness of the rings, axial movement of the latter being prevented by means of a hard steel washer 10 and a ring 11 of mild steel located in enlarged grooves 9, 12 respectively. The rings 7, 8 have peripheral grooves 13 to receive lubricant such as grease, they are formed of a metal or alloy which is highly resistant to frictional wear, and they have one or more narrow radial slits to allow them to be forced over the steel. The diameter of the enlargement 6 is slightly larger than that of the rings 7, 8, whilst the washer 10 and ring 11 surround the steel without touching it. The packing and retaining means may be located ...

Method and device at automatic chip removal from a workpiece

MACHINE TOOL AND COVER DEVICE FOR THE MACHINE TOOL

A machine tool and a cover device for the machine tool capable of preventing work cutting chips and cutting lubricant from falling on the rear part of a spindle head (8) and the operating positions of a first saddle (4) and a second saddle (6) without expanding the lateral width of the machine tool, wherein a column (2) is fixedly installed on a bed (1), the first saddle (4) is guided on the front surface of the column (2) movably in vertical direction (f1), the second saddle (6) is guided on the front surface of the first saddle (4) movably in lateral direction (f2), and the spindle head (8) is guided on the second saddle (6) movably in longitudinal direction (f3) and, in addition, a first cover plate (31) is fixed to the second saddle (6), a side cover plate (33) is installed continuously with each of the right and left side edges of the cover plate (31) bendably in longitudinal direction (f3), a second cover plate (39) is fixed integrally with the first saddle (4), and a third cover ...

Rotary table device

DIAPHRAGM-TYPE CONTACT SEAL ASSEMBLY

Joint à glaces à diaphragme dont le dispositif d'application élastique de la glace mobile est constitué par un diaphragme annulaire de forme initialement plane, fixé par sa périphérie dans ledit support, et que le dispositif d'étanchéité statique est constitué par un joint annulaire souple élastique en contact à la fois avec le diaphragme au voisinage du bord central de celui-ci, avec un alesage cylindrique pratiqué dans le support, et avec une portée extérieure conique pratiquée sur la glace fixe du côté opposé à sa surface d'application sur la glace mobile Application aux broches d'alésage Diaphragm glass seal, the elastic application device of the mobile glass of which is constituted by an annular diaphragm of initially planar shape, fixed by its periphery in said support, and the static sealing device consists of a flexible annular seal elastic in contact both with the diaphragm in the vicinity of the central edge thereof, with a cylindrical bore formed in the support, and with a conical outer bearing formed on the fixed lens on the side opposite to its application surface on the mobile ice Application to boring spindles

Pneumatic tool and more particularly power pick

DIAPHRAGM-TYPE CONTACT SEAL ASSEMBLY

Drilling machine of precision

COVER FOR PREVENTING OIL MIST FROM SCATTERING

According to one embodiment of the present invention, a cover for preventing oil mist from scattering comprises: a fixing cover fixated to a drill to cover the drill; a sliding cover inserted into a lower end of the fixing cover to be slid with the fixing cover; a drill insertion unit formed in an upper end of the fixing cover to enable the drill to be inserted therein; and a drill mounting space where the drill inserted through the drill insertion unit is mounted. COPYRIGHT KIPO 2017 ...

Metod och anordning vid automatisk spånavverkande bearbetning av ett arbetsstycke

MACHINE TOOL AND COVER DEVICE FOR THE MACHINE TOOL

L'invention porte sur une machine-outil et son dispositif de couverture empêchant les copeaux et l'huile de coupe de tomber sur l'arrière de la tête (8) de broche et sur les positions de fonctionnement du premier coulisseau (4) et du deuxième coulisseau (6), et cela sans accroître la largeur de la machine. Une colonne est montée sur le banc (1), le premier coulisseau (4) coulisse verticalement le long de la surface frontale de la colonne (2), le deuxième coulisseau (6) coulisse latéralement (fo) le long de la surface du premier coulisseau (4) et la tête de broche coulisse longitudinalement (f3) sur le deuxième coulisseau (6). De plus, un premier bouclier (31) est fixé au deuxième coulisseau (6) et un bouclier latéral (33) flexible dans le sens longitudinal (f3) recouvre sans interruption les côtés gauche et droit du premier bouclier, un deuxième bouclier (39) est solidaire du premier coulisseau (4), et un troisième bouclier (41) est solidaire de la partie frontale du deuxième bouclier ( ...

Rotation mechanism, machine tool, and semiconductor manufacturing device

A rotation mechanism includes: a housing; a shaft inserted through a hole provided at the housing; bearings installed at the housing and rotatably supporting the shaft; a rotary member provided at one end portion of the shaft, adapted to be rotated together with the shaft, and having a portion that projects to a radially outer side of the hole and faces the housing with a gap having a predetermined size; and a gas passage adapted to connect the gap to outside of the housing and allow gas contained in a portion of the gap to pass to the outside of the housing.

Method and machine tool for mounting and dismounting blind cover

A method and an apparatus for mounting and dismounting a blind cover, which is used for protecting an exposed surface, from cutting fluid and chips. The blind cover is held and carried by a blind cover carrier having a shank mountable into a main spindle and a pot of a tool magazine, and a flange provided with a gripping groove to be gripped by a tool changing arm. The blind cover for protecting the exposed surface of the coupling is held by openable engaging pawls provided on the blind cover carrier. The blind cover carrier holding the blind cover is carried and mounted to the main spindle in the same way as the tool and the attachment. The blind cover and the coupling are provided with respective engaging pawls. The engaging and disengaging operation of the respective engaging pawls and the mounting and dismounting operation of the blind cover to the exposed surface of the coupling are executed by a swivel indexing function of the main spindle.

CHIP SUCTION COVER AND MACHINE TOOL

A chip suction cover is used for a machine tool including: a spindle configured to rotate a tool; and a suction mechanism unit configured to suck chips of a workpiece that are produced in accordance with rotation of the tool. The chip suction cover includes: a hollow body that is provided with an opening through which a rotation central axis of the spindle extends and that is arranged so as to surround the tool; and a cover body that is provided in the hollow body so as to partially close the opening and that is configured to cover a part of a tip end portion of the tool while exposing a remaining part of the tip end portion of the tool. A chip suction cover having such a configuration that improves the efficiency of sucking chips produced due to workpiece machining is provided. 1. A chip suction cover used for a machine tool including: a spindle configured to rotate a tool; and a suction mechanism unit configured to suck chips of a workpiece that are produced in accordance with rotation of the tool , the chip suction cover comprising:a hollow body provided with an opening through which a rotation central axis of the spindle extends, the hollow body being arranged so as to surround the tool; anda cover body provided in the hollow body so as to partially close the opening, the cover body being configured to cover a part of a tip end portion of the tool while exposing a remaining part of the tip end portion of the tool when seen from an axis direction of the rotation central axis of the spindle.2. The chip suction cover according to claim 1 , wherein the cover body is provided so as to protrude beyond the tip end portion of the tool in the axis direction of the rotation central axis of the spindle.3. The chip suction cover according to claim 1 , wherein the cover body is provided so as to be attachable to and detachable from the hollow body.4. A machine tool comprising:a spindle configured to rotate a tool;a suction mechanism unit configured to suck chips of a ...

WORK SUPPORT

An eyeglass lens processing apparatus for processing a periphery of an eyeglass lens (LE) includes: a lens rotation unit which includes a first motor (722) and rotates lens rotating shafts (702L,702R) by first torque of the first motor (722); an axis-to-axis distance changing unit which includes a second motor (751) and changes an axis-to-axis distance between rotational center axes of the lens rotating shafts (702L,702R) and a rotational center axis of the abrasive wheel (602); a monitor unit (722a) which detects the first torque; and a control unit (100) which controls the first or second motor so as to adjust rotational speeds of the lens rotating shafts (702L,702R) or pressing pressure exerted on the lens, on the basis of a result of detection of the motor unit, such that the first torque becomes lower than a predetermined allowable torque level which is determined so as not to cause rotational displacement between the lens rotating shafts (702L,702R) and the lens (LE).

Protecting device for wood lowering machines

Protecting device for wood lowering machines. It consists of two vertical walls (1) lined up longitudinally with a space for cutting element, a plurality of groove guides (2) in the mentioned walls, occupied by the respective slide rods (3), which ones are liable to close the mentioned space and maintain only opened the useful working area, means for avoiding the incorrect introduction, means for avoiding the moving back of the piece of wood, and means for fixing the same device to the planer machine's bed and because it includes a first element formed by a slide flatbar (5) on the top of the vertical wall (1), an element in between (6), and fixation elements (7), which they are liable to cross the mentioned slide flatbar (5) and then press the mentioned element in between (6), immobilizing all of said slide rods.

МОЛОТОК, РАБОТАЮЩИЙ ОТ ГИДРОСИСТЕМЫ

FIELD: mechanical engineering. SUBSTANCE: hammer comprises sleeve-type casing, a striker moving therein, working tool and its cleaning device. The latter consists of an atmospheric air intake chamber, cleaning chamber, inlet channel communicating with atmospheric air intake chamber, filter, connecting atmospheric air intake chamber with cleaning chamber, and return valves located in channels. Cleaning chamber is disposed between interacting ends of striker and working tool while atmospheric air intake chamber, between the other end of striker and sleeve bottom. EFFECT: improved design. 2 dwg ССС 0сС ПЧ Го (19) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ ВИ” 2025 272 ' (51) МПК 13) Сл В 250 17/22 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 4614290/28, 13.06.1989 (30) Приоритет: 14.06.1988 |Т 20959 А/38 (46) Дата публикации: 30.12.1994 (56) Ссылки: 1. Заявка ФРГ М 3031464, кл. В 250 17/00, 1981. (71) Заявитель: Текмо Кар С.п.А. (1Т) (72) Изобретатель: Джанфранко Дзаннини[П] (73) Патентообладатель: Текмо Кар С.п.А. (1Т) (54) МОЛОТОК, РАБОТАЮЩИЙ ОТ ГИДРОСИСТЕМЫ (57) Реферат: Использование: машиностроение, механизированный инструмент для пробивки отверстий. Сущность изобретения: молоток содержит корпус В виде стакана, перемещающийся в нем ударник, рабочий инструмент и устройство очистки рабочего инструмента. Последнее состоит из камеры для забора воздуха из атмосферы, очистительной камеры, впускного канала, соединенного с камерой для забора воздуха из атмосферы, фильтра, соединительного канала, связывающего камеру для забора воздуха из атмосферы с очистительной камерой и размещенных в каналах обратных клапанов. Очистительная камера расположена между взаимодействующими торцами ударника и рабочего инструмента, а камера для забора воздуха из атмосферы между другим торцом ударника и дном стакана. 2 ил. 2025272 С1 КО ССС 0сС ПЧ Го КУЗЗАМ АСЕМСУ ГОК РАТЕМТ$ АМО ТКАОЕМАКК$ (19) ВИ” 2025 272 ' 13) СЛ 6010’ В 250 17/22 12) АВЗТКАСТ ОЕ ...

HANDWERKZEUG MIT EINEM GETRIEBEGEHAEUSE MIT DICHTRING

Auxiliary high-speed planetary gear unit for machine tools

DURCH DRUCKMITTEL, INSBESONDERE HYDRAULISCHE, BETAETIGBARES SCHLAGGERAET

MACHINE TOOL

A machine tool includes a shielding cover, a door, and an automatic tool changer. The shielding cover covers a machining space of a main spindle. The door opens and closes an opening disposed in the shielding cover. The automatic tool changer automatically exchanges a tool to be mounted to the main spindle. The automatic tool changer exchanges the tool to be mounted to the main spindle by turning an arm in a plane perpendicular to the main spindle so as to cause the arm to enter into and exit from the machining space. The arm is configured to grip and release the tool. The turning of the arm is synchronized with the opening and closing movement of the door. 1. A machine tool comprising:a shielding cover that covers a machining space of a main spindle;a door that opens and closes an opening disposed in the shielding cover; andan automatic tool changer that automatically exchanges a tool to be mounted to the main spindle, whereinthe automatic tool changer exchanges the tool to be mounted to the main spindle by turning an arm in a plane perpendicular to the main spindle so as to cause the arm to enter into and exit from the machining space, the arm being configured to grip and release the tool, andthe turning of the arm is synchronized with opening and closing movement of the door.2. The machine tool according to claim 1 , whereina turning direction of the arm when the arm approaches the main spindle and a moving direction of the door when the door is opened through the machining space are both upward directions. This application claims the benefit of Japanese Patent Application Number 2017-127881 filed on Jun. 29, 2017, the entirety of which is incorporated by reference.The disclosure relates to a machine tool that includes an automatic tool changer configured to automatically exchange a tool to be mounted to a main spindle.A common machine tool such as a machining center includes a shielding cover so as to cover a main spindle and a material to be machined (a ...

SPINDLE DEVICE

A spindle device includes a cover member. The cover member has, formed therein, a gas flow path configured to flow a compressed gas for providing sealing between a chuck portion as a rotating member and the cover member and sealing between the chuck portion and the spindle housing. The gas flow path includes a first conduit configured to communicate the outside of the cover member and a second conduit configured to allow the first conduit to communicate with a gap between the chuck portion and the spindle housing, the second conduit being larger than the outlet of the first conduit. The outlet of the second conduit faces a surface of the spindle housing. 1. A spindle device comprising:a spindle housing;a spindle shaft configured to be rotatably supported inside the spindle housing;a rotating member disposed at one end of the spindle shaft and configured to be rotatable in conjunction with rotation of the spindle shaft;an annular flange portion projecting outward from an outer peripheral surface of the spindle housing; anda cover member configured to cover a surface of the flange portion on one end side of the spindle shaft, an outer peripheral surface of the spindle housing that extends from the surface of the flange portion toward the one end side of the spindle shaft, and an outer peripheral surface of the rotating member, a temperature of the cover member being adjusted, wherein:the cover member has, formed therein, a gas flow path configured to flow a compressed gas for providing sealing between the rotating member and the cover member and sealing between the rotating member and the spindle housing;the gas flow path includes:a first conduit configured to communicate with outside of the cover member;a second conduit configured to allow the first conduit to communicate with a gap between the rotating member and the spindle housing, the second conduit being larger than an outlet of the first conduit; andan outlet of the second conduit is configured to face a ...

SPINDLE DEVICE

In a spindle device, a cover member covers a surface of a flange portion on the front side of the spindle shaft, the flange portion projecting radially outward from the outer peripheral surface of the spindle housing, and the outer peripheral surface of the spindle housing extending from the surface of the flange portion toward the front of the spindle shaft. In the cover member, a flow path for allowing a coolant to flow therethrough is formed. 1. A spindle device comprising:a spindle housing;a spindle shaft configured to be rotatably supported inside the spindle housing;a rotating member disposed at one end of the spindle shaft and configured to be rotatable in conjunction with rotation of the spindle shaft;a spindle mount having an insertion cavity into which the spindle housing is inserted along an axial direction of the spindle shaft;an annular flange portion projecting outward from an outer peripheral surface of the spindle housing and configured to be detachably fixed to an end of the spindle mount that is closer to one opening of the insertion cavity;a cover member configured to cover a surface of the flange portion on one end side of the spindle shaft and an outer peripheral surface of the spindle housing that extends from the surface of the flange portion toward the one end side of the spindle shaft; anda flow path formed in the cover member and configured to allow a coolant to flow therethrough.2. The spindle device according to claim 1 , wherein the flow path includes: a first conduit configured to allow outside of the cover member to communicate with the surface of the flange portion covered by the cover member; and a second conduit configured to allow the outside of the cover member to communicate with the outer peripheral surface of the spindle housing covered by the cover member; andthe coolant flowing from the outside of the cover member into one of the first and second conduits flows out into another one of the first and second conduits through a ...

MACHINE TOOL, IN PARTICULAR MULTI-SPINDLE MILLING MACHINE

The present invention relates to embodiments of a machine tool, in particular a multi-spindle milling machine, comprise a machine frame, a workpiece clamping device for clamping a workpiece, an axis slide assembly arranged on the machine frame, and a spindle carrier assembly which is arranged on the machine frame and has at least two tool-carrying work spindles. The axis slide assembly is configured to linearly move the workpiece clamped at the workpiece clamping device by way of three controllable linear axes X, Y and Z. The work spindles are arranged at a turret which can be rotated or swiveled about a turret axis at respectively equal distance from the turret axis, and the spindle axes of the work spindles are aligned or can be aligned in parallel to one another and in parallel to the turret axis. 1. A machine tool , comprising:a machine frame;a workpiece clamping device for clamping a workpiece;an axis slide assembly which is arranged on the machine frame and which is configured to linearly move the workpiece clamped at the workpiece clamping device by way of three controllable linear axes; anda spindle carrier assembly which is arranged on the machine frame and has at least two tool-carrying work spindles;wherein the work spindles are arranged on a turret which can be rotated or swiveled about a turret axis at respectively equal distance from the turret axis and the spindle axes of the work spindles are aligned or can be aligned in parallel to one another and in parallel to the turret axis.2. The machine tool according to claim 1 , wherein the machine frame forms a machining area and the axis slide assembly is arranged above the machining area on the machine frame claim 1 , andwherein the workpiece clamping device is held at the axis slide assembly and is configured to clamp the workpiece and/or a workpiece pallet holding the workpiece in suspended or laterally suspended fashion for the overhead machining of the workpiece clamped at the workpiece clamping ...

Motor and spindle protection structure

A motor, to which a rotary joint supporting structure for supporting a rotary joint is attached, turns a spindle. The motor includes a motor housing, a rotary shaft having a hollow shape and penetrating through the motor housing in the axial direction of the spindle, a flinger integrally attached to the rotary shaft outside the motor housing and disposed on the side to which the rotary joint supporting structure is attached, and a peripheral wall provided on the motor housing and projecting in the axial direction of the spindle so as to surround the periphery of the flinger. A plurality of cutouts are formed in the peripheral wall so as to establish communication between the interior and the exterior of the peripheral wall.

MACHINE TOOL

A machine tool comprising tool spindle () having a chuck () and a spindle motor, in which the chuck () can be actuated for the purpose of receiving and releasing a tool, a sealing air channel () is provided which extends at least partially radially outside the chuck (). The sealing air channel () terminates in or at a protective cap (). 1. A machine tool comprising{'b': 12', '26, 'a tool spindle () having a chuck () and a spindle motor,'}{'b': 40', '26, 'a sealing air channel () which extends at least partially radially outside the chuck (),'}{'b': '26', 'wherein the chuck () can be actuated for receiving and releasing a tool, and'}{'b': 40', '34, 'wherein the sealing air channel () terminates in or at a protective cap ().'}2. The machine tool as claimed in claim 1 ,{'b': 46', '34', '14', '26', '10', '14', '26', '10', '34, 'wherein an annular gap () is provided between the protective cap () and the tool () or the chuck () or a rotating part of a machine tool (), of which one gap side is formed by the tool () or the chuck () or another rotating part of the machine tool () and the other gap side is formed by the protective cap ().'}3. The machine tool as claimed in claim 1 ,{'b': '34', 'wherein the protective cap () is bell-shaped or trapezoidal or has an S-shape or trapezoidal contour when viewed in cross-sectional view.'}4. The machine tool as claimed in claim 2 ,{'b': 34', '46', '16', '12', '10, 'wherein the protective cap () terminates at the annular gap () and is fitted, screwed or otherwise fastened onto a housing () of the spindle () or the machine tool () or another fixed part.'}5. The machine tool as claimed in claim 1 ,{'b': 58', '34', '10, 'wherein a rear end () of the protective cap () is fixedly connected to a part of the machine tool () by forming a press fit, form-fit, friction fit or rotation and is circumferentially sealing and/or is detachable.'}6. The machine tool as claimed in claim 1 ,{'b': 34', '46', '10', '64, 'wherein the protective cap () ...

ROTARY TABLE DEVICE, ROTARY TABLE CONTROLLER, PROGRAM RECORDING MEDIUM, AND ROTARY TABLE CONTROL METHOD

A rotary table device according to the present invention includes: a spindle that supports a table; a driving mechanism that drives the spindle; a load detection portion that detects a load of the driving mechanism; a clamp mechanism that inhibits rotation of the spindle; a rotation control portion that causes the driving mechanism to drive the spindle with a predetermined inspection pattern after the clamp mechanism starts releasing clamping; and a determination portion that determines whether good or not with respect to an operation of the clamp mechanism based on of change over time in the load detected by the load detection portion when the spindle is driven with the inspection pattern. 1. A rotary table device comprising: a driving mechanism that drives the spindle;', 'a load detection portion that detects a load of the driving mechanism;', 'a clamp mechanism that inhibits rotation of the spindle;, 'a spindle that supports a table;'}a rotation control portion that causes the driving mechanism to drive the spindle with a predetermined inspection pattern after the clamp mechanism starts releasing clamping; anda determination portion that determines whether good or not with respect to an operation of the clamp mechanism based on of change over time in the load detected by the load detection portion when the spindle is driven with the inspection pattern.2. The rotary table device according to claim 1 , wherein.the inspection pattern is a pattern in which the spindle is driven by a predetermined inspection angle when a predetermined first period has elapsed after the clamp mechanism starts releasing clamping and when a predetermined second time has elapsed further after the elapse of the first time, andthe determination portion determines that the operation of the clamp mechanism has malfunctioned when a difference between a first peak load value after the elapse of the first period and a first peak load value after the elapse of the second period is a predetermined ...

FLINGER WITH NOISE REDUCTION STRUCTURE AND ELECTRIC MOTOR WITH THE FLINGER

A flinger reducing a noise associated with rotation of an electric motor, and an electric motor with the flinger. The flinger fixed to a rotating shaft of the electric motor includes a plurality of tapped holes provided in an end face on an electric motor, and a cut-out cutting out a part of each of the tapped holes. The tapped hole of the flinger has a depth less than a depth of a tapped hole of a flinger in the related art by a distance equivalent to a depth of the cut-out, so that a natural frequency of an air column formed in the tapped hole increases. Thus, when the flinger is used, rotation speed causing increase in noise during rotation can be shifted to higher rotation speed. 1. A flinger mounted in an electric motor including a stator , a rotor with a rotating shaft rotatable about an axis of the stator , and a front bearing and a rear bearing configured to rotatably support the rotating shaft ,the flinger being mounted to one or both of a portion of the rotating shaft forward of the front bearing along the axis and a portion of the rotating shaft rearward of the rear bearing along the axis, a plurality of tapped holes; and', 'a cut-out cutting out a part of the respective tapped holes,, 'the flinger comprisingwherein the cut-out is formed as a slit cutting out a part of a lateral portion of each of the tapped holes in a longitudinal direction of each of the tapped holes.2. The flinger of claim 1 , whereinthe slit is formed not to open in an outer lateral face of the flinger.3. An electric motor with the flinger of . This is a division of U.S. application Ser. No. 16/407,528, filed May 9, 2019, which claims priority to Japanese Application No. 2018-112633, filed Jun. 13, 2018, the contents of which are herein incorporated by reference.The present invention relates to a flinger with a structure for reducing a noise caused during rotation and an electric motor with the flinger.In many cases, an electric motor (rotary electric machine) for rotating a spindle, ...

CHUCK SLEEVE FOR POWER TOOL

A power tool is provided and includes a housing, a motor, a gear case, a bearing assembly, and a chuck assembly. The motor is disposed in the housing and defines an axis of rotation. The gear case is coupled to the motor and includes a proximal end and a distal end. The proximal end of the gear case is coupled to the housing. The bearing assembly extends from the distal end of the gear case along the axis of rotation and supports a driveshaft for rotation about the axis of rotation. The chuck assembly is rotatably coupled to the driveshaft and includes a chuck sleeve annularly surrounding the bearing assembly about the axis of rotation. 1. A power tool comprising:a housing;a motor disposed in the housing and defining an axis of rotation;a gear case coupled to the motor, the gear case including a proximal end and a distal end, the proximal end of the gear case coupled to the housing;a bearing assembly extending from the distal end of the gear case along the axis of rotation, the bearing assembly supporting a driveshaft for rotation about the axis of rotation; anda chuck assembly rotatably coupled to the driveshaft, the chuck assembly including a chuck sleeve annularly surrounding the bearing assembly about the axis of rotation.2. The power tool of claim 1 , wherein the chuck sleeve includes a radially inwardly extending flange portion claim 1 , and wherein the bearing assembly is disposed between the flange portion and the distal end of the gear case along the axis of rotation.3. The power tool of claim 1 , wherein the flange portion is operable to prevent the chuck sleeve from moving relative to the chuck body along the axis of rotation.4. The power tool of claim 3 , wherein the chuck assembly includes a chuck body claim 3 , and wherein the flange portion is coupled to the chuck body.51. The power tool of claim 1 , wherein the chuck sleeve includes a proximal end and a distal end claim 1 , and wherein the distal end of the gear case and the proximal end of chuck ...

ADDITIVE MANUFACTURING TOOL

An additive manufacturing tool configured to couple to a spindle of a CNC machine, comprises a plurality of drive wheels movable between an engaged position wherein they compress filament from a filament source against a drive disc and a disengaged position wherein they are spaced apart from the filament, and a delivery assembly including a heating element and a nozzle having an outlet opening. When the plurality of drive wheels are in the engaged position and the drive disc is rotated, the filament is drawn into the tool from the filament source and routed around the drive disc to the nozzle, where heat transferred from the heating element to the nozzle melts the filament so that the filament flows through the outlet opening. 1. An additive manufacturing tool configured to couple to a spindle of a computer numerical control (“CNC”) machine , the tool comprising:a plurality of drive wheels being movable between an engaged position wherein the plurality of drive wheels compress filament from a filament source against a drive disc and a disengaged position wherein the plurality of drive wheels are spaced apart from the filament; anda delivery assembly including a heating element and a nozzle having an outlet opening;wherein when the plurality of drive wheels are in the engaged position and the drive disc is rotated, the filament is drawn into the tool from the filament source and routed around the drive disc to the nozzle, where heat transferred from the heating element to the nozzle melts the filament so that the filament flows through the outlet opening.2. The additive manufacturing tool of claim 1 , wherein the filament enters the tool in a first direction and passes through the nozzle in a second direction claim 1 , the second direction being substantially perpendicular to the first direction.3. The additive manufacturing tool of claim 2 , further comprising a material inlet assembly including a filament tube that routes filament into the tool in the first ...

PLASTIC SLINGER WITH CONTACTING BUMPER FEATURE WITH LABYRINTH

A seal assembly includes a housing defining a bore and a shaft received in the bore. A seal member is secured to the housing for sealing a gap between the housing and the shaft. A slinger is secured to the shaft. The slinger being made from plastic and including a first semi-circular part and a second semi-circular part that is secured to the first semi-circular part. The slinger includes a radially extending wall portion with a raised bumper feature at a radially outer surface opposing the seal member. The slinger further includes an axially protruding labyrinth feature extending from the radially extending wall portion and toward the seal member. The first semi-circular part and the second semi-circular part can be snap fit to one another. 1. A seal assembly , comprising:a housing defining a bore;a shaft received in the bore;a seal member secured to the housing for sealing a gap between the housing and the shaft; anda slinger secured to the shaft, the slinger being made from plastic and including a first semi-circular part and a second semi-circular part that is secured to the first semi-circular part.2. The seal assembly according to claim 1 , wherein the slinger includes a radially extending wall portion with a raised bumper feature at a radially outer surface opposing the seal member.3. The seal assembly according to claim 1 , wherein the slinger includes a radially extending wall portion and an axially protruding labyrinth feature extending from the radially extending wall portion and toward the seal member.4. The seal assembly according to claim 1 , wherein the first semi-circular part and the second semi-circular part are snap fit to one another.5. A seal assembly claim 1 , comprising:a housing defining a bore;a shaft received in the bore;a seal member secured to the housing for sealing a gap between the housing and the shaft; anda slinger secured to the shaft, the slinger being made from plastic and including a first semi-circular part and a second semi- ...

Flinger with noise reduction structure and electric motor with the flinger

A flinger reducing a noise associated with rotation of an electric motor, and an electric motor with the flinger. The flinger fixed to a rotating shaft of the electric motor includes a plurality of tapped holes provided in an end face on an electric motor, and a cut-out cutting out a part of each of the tapped holes. The tapped hole of the flinger has a depth less than a depth of a tapped hole of a flinger in the related art by a distance equivalent to a depth of the cut-out, so that a natural frequency of an air column formed in the tapped hole increases. Thus, when the flinger is used, rotation speed causing increase in noise during rotation can be shifted to higher rotation speed.

FIXING MEMBER AND SPINDLE DEVICE

A spindle device includes: a spindle; a spindle housing having a bearing configured to rotatably support the spindle; a rotating member arranged at one end of the spindle; and a fixing member configured to fix the spindle so that the spindle is unrotatable relative to the spindle housing. 1. A fixing member comprising:a first attachment portion configured to be attached to a spindle housing having a bearing configured to rotatably support a spindle; anda second attachment portion joined to the first attachment portion and configured to be attached to a rotating member arranged at one end of the spindle,wherein the first attachment portion and the second attachment portion are configured to fix the spindle so that the spindle is unrotatable relative to the spindle housing.2. The fixing member according to claim 1 , wherein:the first attachment portion is formed in a circular arc-shape; andthe second attachment portions are joined to the first attachment portion and arranged at intervals in a circumferential direction of the first attachment portion.3. The fixing member according to claim 1 , wherein:the fixing member is a flat plate; andthe second attachment portion is configured to extend from the first attachment portion toward a center of the first attachment portion and be attached to a mount face of the rotating member to which a workpiece or a tool is set.4. The fixing member according to claim 3 , wherein the second attachment portion has resiliency in an axial direction of the spindle.5. The fixing member according to claim 1 , wherein:each of the first attachment portion and the second attachment portion is a flat plate; andthe second attachment portion is configured to extend from the first attachment portion in a direction that crosses the first attachment portion, and be attached to a peripheral side surface of the rotating member.6. The fixing member according to claim 1 , wherein:the first attachment portion has a first through hole into which a ...

Sicherungsvorrichtung für eine Motorspindel

Die Erfindung betrifft eine Sicherungsvorrichtung für eine in einem Gehäuse (2) angeordnete Motorspindel (1), insbesondere von Werkzeugmaschinen, mit einem mit der Motorspindel (1) fest verbundenen Innenring (6) und einem mit dem Gehäuse (2) verbundenen Außenring. Der Innenring (6) ist axial verschiebbar und kippbar in dem Außenring (7) angeordnet und durch Vorspannelemente (8) in Axialrichtung elastisch federnd gegen den Außenring (7) vorgespannt.

Machine tool

本实用新型提供一种不只是在加工材质为金属的加工对象物的工件时在加工材质为石墨、树脂材料、CFRP等的加工对象物的工件时也能够适当地抑制切屑的扩散并将切屑排出的机床。包括用于抑制随着对加工对象物进行加工而产生的切屑的飞散的切屑飞散抑制机构，切屑飞散抑制机构包括：切屑搅乱部件，其向工作台上的包含加工对象物的干式加工区域喷出气体而将切屑搅乱；流体帘幕形成部件，其从上方向干式加工区域的外侧以围绕干式加工区域的方式呈幕状喷出液体或气体即流体，利用幕状的流体帘幕形成包括干式加工区域的封闭区域；以及排出部件，其接收利用流体帘幕形成部件呈幕状喷出的流体并将该流体排出。

Preventing apparatus of entering foreign substance for tool machine

Disclosed is a foreign substance inflow prevention apparatus for a tool machine, comprising: a spindle having a tool for being rotatable; a head formed to cover the spindle from the outside; a bearing housing located in front of the spindle, having a shape that covers the spindle from the outside, and having a bearing therein; air flow paths, formed in the head and the bearing housing to enable the head and bearing housing to communicate with each other and formed to enable air introduced from the rear portion of the spindle to the front portion; and an air seal located in front of the spindle and allowing the air discharged from the air flow path to form at least one flow path in the radial direction or the circumferential direction of the spindle so that inflow into a foreign substance can be prevented.

Spindle assembly for a precision machine tool

In the disclosed assembly, in accordance with the invention, there is provided a means for preventing drawing-in of air into the housing from ambient atmosphere through the labyrinth seal in the rear lid. The means includes a passage having its inlet communicating with the ambient atmosphere and its outlet communicating with the clearance between the spindle flange and the front lid. The disclosed spindle assembly is primarily intended for use in finishing boring machines wherein the tool spindles are of a flange-type design and are mounted in antifriction bearings. The disclosed spindle assembly prolongs the period of high-accuracy performance of the antifriction bearings and their service life in general.

Multiple spindle bar machine

A multiple spindle bar machine (10) is disclosed including a cylindrical spindle carrier assembly (30) supporting a spaced apart array of spindle bearings (200, 202). Workpiece holding spindles (40a-40f) are rotatably journaled in the spindle bearings (200, 202). A hollow spindle drive shaft (50) extends through a central opening in the spindle carrier (30) and includes a drive gear (54) pinned to an end of the shaft (50). The drive gear intermeshes with spindle gears (41a-41f) to drive the spindles (40a-40f) at a uniform rotational speed. The spindle carrier assembly is rotatably supported by at least one set of tapered roller bearings (126, 128) bearing against an outer peripheral surface of the spindle carrier (30). The set of roller bearings (126, 128) are disposed in a notched annulus in an inner peripheral surface of a headstock upright (16) . Each roller bearing forms an acute included angle between the spindle carrier outer peripheral surface and a surface of the tapered bearing facing the spindle carrier. The set of tapered roller bearing (126, 128) is mechanically preloaded before machining operations commence. The spindle carrier (30) includes an interior manifold comprising passageways (224a-224f) between the spindle bearings (200, 202). A connector assembly (210) including a swivel connector is provided to route pressurized fluid in the hollow cavity of the spindle drive shaft (50) to the interior manifold of the spindle carrier (30) to preload the spindle bearings (200, 202).

Work machine

在包围对工件进行加工的空间且防止切屑、加工液的飞散的机床的防溅罩中，具备被设置在机床(10)的正面侧并通过圆弧运动而在水平方向进行开闭动作的正面门(65)、进行与正面门(65)同心的圆弧运动并与该正面门(65)重合地进行开闭动作的侧面门(66)和与开闭模式相应地有选择地准许正面门(65)和侧面门(66)的开闭的门锁止开关(75、76)。

Holder drive

Machine tool and its cover device

Spindle assembly for mechanics tool

공구기계 스핀들의 베어링은 축에 장치된 한쌍의 납땜 봉합에 의해 봉해지고, 축이 이어지는 링의 마주하는 면에 접하도록 되어있다. 링과 축사이에 매우 작은 틈에 낮은 압력에서 공기를 공급한다. 기체가 공급될때, 가령 축이 정지상태에 있을때 봉합이 링에 접하고, 탄성은 접촉을 좋게하여 봉합면에서 다른면으로 축을 따라 윤활제의 이동을 저해시킨다. 축이 움직일때, 낮은 압력 기체가 공급되고, 이 압력으로 링에서 봉합을 편향시키고, 이때 마찰력이 연결되지 않고, 전력손실이나 열이 발생되지 않고, 원심력에 의해 봉합으로 액체가 이동하지 않게 한다. The bearing of the tool machine spindle is sealed by a pair of brazed sutures mounted on the shaft and is in contact with the opposite face of the ring that the shaft follows. Air is supplied at low pressure in a very small gap between the ring and the shaft. When the gas is supplied, for example when the shaft is stationary, the suture is in contact with the ring, and the elasticity provides good contact, hindering the movement of the lubricant along the axis from the sealing side to the other side. When the shaft moves, a low pressure gas is supplied, at which pressure deflects the suture in the ring, where no frictional forces are connected, no power loss or heat is generated, and no liquid moves to the suture by centrifugal force.

Blind lid attachment / detachment method

Fringe with noise reduction structure and electric motor with the flinger

Coolant inflowing preventing device of a spindle and preventing method thereof

본 발명은 스핀들의 절삭유 유입 방지 장치 및 그 방지방법에 관한 것이다. 이를 위해, 스핀들을 갖는 공작기계에 있어서, 소정의 공압을 공급하는 공압공급관(14); 공압공급관(14) 상에 설치되어 공압의 압력을 제어하는 솔레노이드밸브(34); 스핀들(16)에 인접하게 설치되어 스핀들(16) 내부로의 절삭유 유입을 방지하도록 공압을 배출하는 배출구(20); 및 스핀들(16)의 회전으로부터 정지하였을 경우 솔레노이드밸브(34)의 동작을 지연시키는 타이머(32);가 제공된다. 공작기계, 스핀들, 절삭유, 유입, 공압, 내부, 타이머, 솔레노이드, 밸브

Lathe

在包围对工件进行加工的空间且防止切屑、加工液的飞散的机床的防溅罩中，具备被设置在机床(10)的正面侧并通过圆弧运动而在水平方向进行开闭动作的正面门(65)、进行与正面门(65)同心的圆弧运动并与该正面门(65)重合地进行开闭动作的侧面门(66)和与开闭模式相应地有选择地准许正面门(65)和侧面门(66)的开闭的门锁止开关(75、76)。

Machine tool and cover device for machine tool

一种机床及其覆盖装置，该机床在不扩大机床的左右宽度的情况下，防止下述情况，该情况指工件的切削屑或切削液掉落到主轴头(8)的后部，第一滑架(4)和第二滑架(6)等的工作部位，在该机床中的基座(1)上，固定有支柱(2)，在该支柱(2)的前面，以可沿上下方向(f1)移动的方式对第一滑架(4)进行导向，另外在第一滑架(4)的前面上，以可沿左右方向(f2)移动的方式对第二滑架(6)进行导向，在第二滑架(6)上，以可沿前后方向(f3)移动的方式对主轴头(8)进行导向，在第二滑架(6)上，固定第一盖板(31)，同时在该盖板(31)的左右各端缘，按照可沿前后方向(f3)弯曲的方式连接有侧部盖板(33)，此外，第二盖板(39)与第一滑架(4)成整体固定，并且在第二盖板(39)的前侧，固定有第三盖板(41)。

SEALING METHOD AND DEVICE FOR TREES

LE PROCEDE EST DESTINE A REALISER L'ETANCHEIFICATION D'UNE PARTIE 3 DE MACHINE TOURNANT PAR RAPPORT A UNE AUTRE ET FAISANT SAILLIE A L'EXTERIEUR DE CELLE-CI, AU MOYEN D'UN ANNEAU D'ETANCHEMENT 1 D'ARBRE RIGIDEMENT ASSEMBLE A LA PARTIE 3 DE MACHINE ROTATIVE ET COMPORTANT DES LEVRES D'ETANCHEITE ELASTIQUES 11 AXIALES OU RADIALES D'UN MODE D'AGENCEMENT CONNU, DE FACON QU'AU REPOS OU EN PRESENCE DE DEPLACEMENTS RELATIFS LENTS, UNE ETANCHEITE A CONTACT, HERMETIQUE SOIT OBTENUE ET, AVEC LEQUEL, EN FONCTION D'UN ACCROISSSEMENT DE LA VITESSE RELATIVE, LA LEVRE D'ETANCHEITE 11 SE TROUVE DELESTEE D'UNE MANIERE PRE-DETERMINABLE ET REGLABLE A PARTIR DE L'EXTERIEUR POUR ETRE SOULEVEE OU SEPAREE DE LA SURFACE D'ETANCHEMENT, AVEC TRANSFORMATION EN UN ETANCHEMENT D'ARBRE SANS CONTACT. ON INSUFFLE DE L'AIR COMPRIME ENTRE L'ANNEAU D'ETANCHEMENT 11 D'ARBRE ET LA SURFACE D'ETANCHEMENT 12 A TRAVERS UNE COURONNE D'ALESAGES 8 FORMANT DES BUSES D'INSUFFLATION EN PRODUISANT AINSI UN COUSSIN D'AIR. THE PROCESS IS INTENDED TO ACHIEVE THE WATERPROOFING OF A PART 3 OF A MACHINE TURNING WITH RESPECT TO ANOTHER AND PROJECTING OUTSIDE THE latter, BY MEANS OF A SHAFT SEALING RING 1 RIGIDLY ASSEMBLED TO PART 3 OF A ROTATING MACHINE AND INCLUDING 11 AXIAL OR RADIAL ELASTIC SEALING LIPS OF A KNOWN ARRANGEMENT MODE, SO AS AT REST OR IN THE PRESENCE OF SLOW RELATIVE MOVEMENTS, A CONTACT, HERMETIC SEALING IS OBTAINED AND , WITH WHICH, ACCORDING TO AN INCREASE IN THE RELATIVE SPEED, THE SEALING LIP 11 IS DELETED IN A PRE-DETERMINABLE AND ADJUSTABLE MANNER FROM THE EXTERIOR TO BE LIFT OR SEPARATE FROM THE SEALING SURFACE , WITH TRANSFORMATION INTO A NON-CONTACT SHAFT SEALING. COMPRESSED AIR IS BLOWED BETWEEN THE SHAFT SEALING RING 11 AND THE SEALING SURFACE 12 THROUGH A CROWN OF THREADS 8 FORMING BLOW-OUT NOZZLES, THUS PRODUCING AN AIR CUSHION.

Lathe

本发明提供一种机床，其能够在短时间内实施工具的自动更换，且加工作业效率良好。机床(卧式加工中心)(1)具有：遮蔽罩(5)，其覆盖主轴(3)的加工空间；门(10)，其用于对设置在该遮蔽罩(5)上的开口部(9)进行开闭；以及自动工具更换装置(ATC)(4)，其用于自动更换安装于主轴(3)的工具(T)。而且，ATC(4)通过使能够把持/释放工具(T)的更换臂(12)在与主轴(3)垂直的面内转动而进入/退出加工空间，由此更换安装于主轴(3)的工具(T)，并且更换臂(12)的转动与门(10)的开闭动作同步。

Universal multiple bit drilling head - has high output hydraulic drive with independent or group control

The drilling head is for repetitive drilling in wood, glass or plastics materials. The drill has its own hydraulic drive, with revolution rates of up to 30,000 r.p.m. and/or its own hydraulic feed (9). Each drilling assembly is controllable independently or in common with others. In plan, the grid dimension does not exceed 32 mm.

Preventing device of the cutting oil penetration for lathe main shaft

내용 없음. No content.

Cutting tool device for machine tool

machine tool

Device for collecting drilled material and dust

A device, for collecting drilled material and dust produced by a drilling tool, has a flange part (1) with a central axis to be secured to a housing of the drilling tool, and an axially extending container (2) for receiving the drilled material and dust and connected to and extending axially outwardly from the flange part (1) and being compressible in its axial direction towards the flange part. A ring-shaped sealing element (3) is arranged to contact a rotating part of the drilling tool. A radially outwardly extending annular rib on the sealing element is rotatably supported in an annular recess (26) in the flange part (1) and the recess is open towards the axis of the flange part so that no harmful wear can arise in spite of adequate sealing between the sealing element and the rotating part of the drilling tool.

Spindle device

Apparatus for processing a lens

본 발명은, 렌즈지지축이 변위하는 궤적의 연장상에 회전공구의 축이 존재하는 경우에도, 확실히 방수를 하는 기구를 제공한다. 렌즈지지축(41)은, 렌즈(1)의 주연부를 가공하는 주 회전공구(50)를 향하여 렌즈를 변위시킨다. 방수케이스(101)는, 렌즈지지축(41)의 변위 궤적에 따라 긴 구멍(115)을 관통 형성함과 동시에, 렌즈지지축(41)을 이 긴 구멍(115)을 통해 삽입된다. 이 긴 구멍(115)에 따른 방수케이스(101)의 외측에서 굴곡가능한 방수성 슬라이드셔터(130)를 변위가능하게 배치한다. 이 슬라이드셔터(130)는, 렌즈지지축(41)과 연결된다. 이 슬라이드셔터(130)를 포함한 가이드부재(150)는, 주축(51) 이전의 위치에서 굴곡된다. The present invention provides a mechanism that ensures waterproofness even when an axis of a rotary tool exists on an extension of a trajectory in which a lens support shaft is displaced. The lens support shaft 41 displaces the lens toward the main rotary tool 50 for processing the peripheral portion of the lens 1. The waterproof case 101 penetrates the long hole 115 in accordance with the displacement trajectory of the lens support shaft 41, and the lens support shaft 41 is inserted through the long hole 115. The waterproof slide shutter 130 that is bendable outside the waterproof case 101 along the long hole 115 is disposed to be displaceable. The slide shutter 130 is connected to the lens support shaft 41. The guide member 150 including this slide shutter 130 is bent at a position before the main shaft 51.

apparatus for treating spindle oil and machine having the same

According to the present invention, disclosed are a spindle oil treatment apparatus and a machine tool having the same. The spindle oil treatment apparatus comprises: a spindle cover which forms a cup shape where a hole (central hole) is penetrated in the center of the bottom generally, wherein vertically installed spindles surround a boundary part protruding downwards from a main shaft supporting the spindles, and are fixated on the main shaft, the central part of the bottom of the spindles where the spindle and an artifact are in contact with a lower central hole is exposed, and a hole for removing oil is formed in the lower end peripheral part; and an oil intake unit which has a nozzle which draws oil in by being in contact with the hole for removing oil, and an oil tube which is connected to the nozzle. The present invention is able to prevent oil dispersed around a spindle from contaminating a processed object or a peripheral device as a lubricant between the spindle and the main shaft is dropped onto the inner surface of a cover and is collected on the outside end of the lower part of the cover even though the lubricant is dispersed to the surroundings with the rotation of the spindle since the cover always covers the periphery of the spindle and the boundary part with the main shaft of supporting the spindle, and oil is discharged to the outside by installing an intake nozzle of a vacuum intake tube in the hole for removing oil.

Electric actuator

Spindle device

A spindle device includes a spindle housing, a spindle shaft rotatably supported inside the spindle housing, a spindle mount having an insertion cavity into which the spindle housing is inserted along the axial direction of the spindle shaft, and a mount cover covering the spindle mount. A temperature regulator for adjusting the temperature inside the mount cover is provided inside the mount cover.

Apparatus for processing lens

本发明公开了一种透镜加工设备，尤其是该设备中的防水机构，即使回转刀具的主轴位于透镜夹持轴移动轨迹的延长线上，也能可靠地保证防水效果。其特征为：一透镜夹持轴(41)将一透镜(1)移向一主回转刀具(50)，用于对透镜(1)的周边部分进行加工。沿透镜夹持轴(41)的运动轨迹，在一防水壳(101)上制有一长形孔(115)，其穿透防水壳(101)，透镜夹持轴从该长形孔(115)中插入。在防水壳(101)的外侧，沿长形孔(115)设置了一柔性防水滑动挡板(130)，并使得该滑动挡板可自由移动。滑动挡板(130)与透镜夹持轴(41)相连接。在接近主轴(51)之前的一个位置处，将包含所述滑动挡板(130)的引导元件(150)进行弯折。

Precision boring machine

Oil slinger and motor

本发明提供甩油环和电动机，该甩油环用于降低伴随着电动机的旋转而产生的噪声，该电动机具备该甩油环。固定于电动机的旋转轴的甩油环具有：设于电动机的端面的多个螺纹孔和将螺纹孔各自的一部分切掉而成的切口。甩油环的螺纹孔的深度比现有技术所涉及的甩油环的螺纹孔的深度短了与切口的深度相当的距离，因此，由螺纹孔形成的气柱的固有频率变大。因而，在使用了甩油环的情况下，能够将旋转时噪声较大的转速变换到更高的转速。

Electric actuator

An electric actuator has a body (12) with a hole (14) defined therein and an electric motor (16) fixed to an end of the body (12). The electric motor (16) has a rotatable shaft to which a feed screw (20) is coaxially connected, and a feed nut (22) is threaded over the feed screw (20). The hole (14) receives an elongate cylindrical tubular member (24) slidably fitted therein which surrounds the feed screw (20). The feed nut (22) is secured to an end of the tubular member (24), and a support (26) for feeding a workpiece supported thereon is fixed to the other end of the tubular member (24). The feed screw (20), which serves as a drive force transmitting shaft, is protected by the surrounding tubular member (24) from the deposition thereon of dust, dirt, or other foreign matter and hence from unwanted shutdown or breakage.

Main spindle device

In a main spindle device provided with a housing and a main spindle, a labyrinth-forming annular groove is formed, in the circumferential direction of the main spindle, on the outer circumferential surface of a protruding portion of the spindle that protrudes from the housing on the front side. A housing lid member having a protruding portion that is inserted into the labyrinth-forming annular groove so as not to contact an inside surface of the labyrinth-forming annular groove all around the periphery is fixed to the housing on the front side thereof and forms a labyrinth seal portion between the protruding portion and the labyrinth-forming annular groove. The housing lid member is constructed so that the housing lid member can be divided into at least two pieces with respect to the circumference of the labyrinth-forming annular groove.

Device for preventing cutting fluid from entering a bearing on a spindle in a machine tool

A machine tool comprises a spindle head (2) having a vertical bore (2a); a spindle (20) provided in said vertical bore (2a) and including a tapered hole (24) at the lower end of said spindle (20); bearing means (22a) provided in said vertical bore (2a) for rotatably supporting said spindle (20); a non-contact sealing means (10a) for sealing the bearing means (22a). The machine tool further comprises a device for preventing a cutting fluid from entering the bearing for the spindle. The device comprises means (6a, 6b) for forming a pressure chamber (6) provided so as to enclose the non-contact sealing means (10a); and means (44) for supplying air to the pressure chamber (6).

Spindle device

本发明提供一种主轴装置(20)，其具备主轴壳体(24)、能够旋转地支撑在主轴壳体(24)的内部的主轴轴体(22)、具有供主轴壳体(24)沿主轴轴体(22)的轴向插通的插通孔(26H)的主轴安装台(26)、以及覆盖主轴安装台(26)的安装台罩(29)。在安装台罩(29)的内部设有用于调节安装台罩(29)的内部的温度的温度调节部(80)。

Machine Tools

Driving connection arrangement and sealing arrangement for a live tool and method for sealing the same

The present invention is directed to a live tool assembly adapted to be received within a machine tool assembly. The live tool includes a coupling assembly for transferring rotational motion of a drive gear assembly to a drive shaft assembly and a backlash adjustment assembly for adjusting the backlash between the drive gear assembly and the drive source of the machine tool. The live tool assembly further includes a sealing assembly for preventing contaminants from entering an interior of the housing by maintaining a positive pressure differential between the interior of the housing and an exterior of the live tool assembly.

Working spindle having flat contact area measuring, and machine tool having same

The working spindle (11) according to the invention is provided with a compressed air-supported inspection of the flat contact area for the tool holder (15). The compressed air is transferred to a transfer gap via a seal assembly (40) that is non-contacting in the resting state. The seals (41, 42) thereof are only positioned, by their respective sealing lips (44), on the spindle part (18) or on the chuck (16) when pressure is applied. During the operation of the working spindle (11), i.e. when the spindle part (18) rotates, the seal assembly (40) is non-contacting and therefore frictionless. In this way, wear and heat generation on the working spindle (11) are avoided. In order to inspect the seal, a very precise monitoring of the flat contact area can be carried out. The leakage rate of the seal assembly (40) can be orders of magnitude lower than leakage rates occurring with tool holders (15) that do not sit flat on the contact surfaces (28, 29, 30). The invention provides a very cost-effective option for inspecting the flat contact area, which also assumes the function of blowing away shavings. The invention can be retrofitted to existing working spindles, and functions in a quick, precise and reliable manner. It is not necessary to interfere in the internal structure of the working spindle.

machine tools

Ein Maschinenwerkzeug (1) beinhaltet eine Schutzabdeckung (5), eine Tür (10) und einen automatischen Werkzeugwechsler (4). Die Schutzabdeckung (5) bedeckt einen Maschinenraum einer Hauptspindel (3). Die Tür (10) öffnet und schließt eine Öffnung (9), welche in der Schutzabdeckung (5) angeordnet ist. Der automatische Werkzeugwechsler (4) wechselt automatisch ein Werkzeug (T), welches auf der Hauptspindel (3) montiert werden soll. Der automatische Werkzeugwechsler (4) wechselt das Werkzeug (T), welches auf der Hauptspindel (3) montiert werden soll, durch Bewegen eines Arms (12) in einer Ebene rechtwinklig zur Hauptspindel (3), um zu bewirken, dass der Arm (12) in einen Maschinenraum eindringt und aus diesem herausgeht. Der Arm (12) ist dazu eingerichtet, das Werkzeug (T) zu greifen und freizugeben. Die Bewegung des Arms (12) ist mit der Öffnungs- und Schließbewegung der Tür (10) synchronisiert.

Electric actuator

FOERBAETTRING FOER HYDRAULISK SLAGMASKIN

A kind of gas sealing mechanism of machine tool chief axis

本实用新型涉及一种机床主轴的气密封装置，该装置是由主轴、端盖、前隔环、轴承和大套构成；大套上设有前气路，端盖上设有后气路，大套与端盖的气路连接处设有O型密封圈，主轴上设有两个环形凹槽，后气路与靠近前隔环的环形凹槽对应。机床运转时，具有一定压力的清洁空气形成的气流可以有效阻挡外部的冷却液和切屑进入主轴与端盖的环形缝隙，两个环形密封环可以有效滞留冷却液和切屑，前隔环与端盖间隙形成的迷宫可以进一步阻挡异物。本实用新型的气密封装置设计简单，可以在各种机床和加工中心上广泛应用，具有一定的推广价值。

Spindle device having built-in motor

In a spindle device (10) having a built-in motor, a flinger (40) is fixed to one end side of a rotation shaft (11), and a labyrinth seal (44) is formed between the flinger (40) and a housing H. The housing H includes at least one bypass hole (24) that allows a motor chamber (34) having a motor (30) arranged therein and the labyrinth seal (44) to communicate with each other. Thereby, water-resistance performance can be improved and damage to a bearing can be prevented.

Screw-nut transmission protective device

Machine tool and tool holder

A machine tool having a turning function and a milling function includes a spindle, a spindle housing supporting the spindle in a rotatable manner, a main clamp provided at the spindle, an auxiliary clamp provided at the spindle housing, and a double arm with a first gripper and a second gripper. The auxiliary clamp clamps a tool holder together with the main clamp during fixing a fixed tool. The double arm exchanges a tool holder grasped at the first gripper for another tool holder grasped at the second gripper by rotating and sliding movements. The auxiliary clamp is arranged at a position not interfering with the double arm that moves during exchanging tool holders. By such a configuration, a machine tool achieving a clamping force sufficient to withstand the load during a turning process, and that allows tool exchange in a short period of time, and a tool holder employed in such a machine tool, can be provided.

Chip suction cover and machine tool

Retractable self-locking clamp device.

"APARELHO DE BRAçADEIRA AUTO-TRAVáVEL RETRáTIL". Uma braçadeira auto-travável retrátil para corda, cabo e similar incluindo meios formando uma base (60) que pode ser montada a uma carroceria de caminhão, convés ou outras superfícies que inclui uma abertura na qual um componente de braçadeira auto-travável pode ficar retraído. O componente de braçadeira (80) é preso pivotadamente á base (60) e pode ser girado para dentro e para fora do recesso. A conexão pivotável entre o componente de braçadeira auto-travável (80) e a base (60) pode incluir um pino pivó (78) e configuração de entalhe que permite o componente de braçadeira ser mantido em sua posição estendida uma vez girado para o mesmo ou até que seja reposicionado de modo que possa ser pivotado para sua posição retraída. Em um modo de realização alternativo, a base é formada em uma configuração clássica de braçadeira fixa, possuindo uma cavidade formada em sua seção média para receber um componente de braçadeira auto-travável retrátil preso pivotadamente à base fixa.

Spindle device having built-in motor

A spindle device (10) having a built-in motor, wherein a flinger (40) is fixed to one end side of a rotating shaft (11) and a labyrinth seal (44) is formed between the flinger (40) and a housing H. The housing H comprises at least one bypass hole (24) that connects the labyrinth seal (44) and a motor chamber (34) having a motor (30) arranged therein. As a result, water-resistance performance can be improved and damage to bearings can be suppressed.

Angle grinder oil seal - has dynamic and static portions functionally when running and stopped respectively

The seal on the driving pinion of a portable angle-grinder is enclosed in the radial direction by the inner wall of an axial bore and prevented from sliding in the axial direction. It prevents lubricant from the gearbox penetrating into the motor. It comprises a dynamic sealing portion (20) functioning when the motor shaft (10) is rotating, and a static one (24) effective when it is stopped. The latter portion has an annular sleeve (24') extending towards the motor shaft bearing (11) at the output end. When the shaft is stopped, this bears against the inclined face (25') of a fixed washer (25), lifting clear of it on rotation. ADVANTAGE - Complete sealing at all times.

spindle device

Eine Spindelvorrichtung (Wellenvorrichtung) weist Folgendes auf: ein Gehäuse (10); eine Spindel bzw. Welle (20), die einen rohrförmigen Körperabschnitt (61), der ein Drehwerkzeug (21) hält, und einen Flanschabschnitt (63) aufweist, der in einer radialen Richtung von einer Außenumfangsfläche an der Seite des Drehwerkzeugs (21) des Körperabschnitts (61) nach außen vorsteht; Lager (81 bis 85), die die Außenumfangsfläche des Körperabschnitts (61) derart stützen, dass der Körperabschnitt (61) in Bezug auf das Gehäuse (10) drehbar ist; und ein viskoelastisches Lager (hydrostatisches Lager (70)), das den Flanschabschnitt (63) derart stützt, dass der Flanschabschnitt (63) in Bezug auf das Gehäuse (10) drehbar ist, das an einer Position korrespondierend zu einer radialen Position der Lager (81 bis 85) oder radial außerhalb der radialen Position der Lager (81 bis 85) angeordnet ist, und das einen größeren Dämpfungskoeffizienten hat als der der Lager (81 bis 84).

Main spindle device of machine tool

본 발명의 공작 기계의 주축 장치는 주축 커버와 단부면 커버 사이에 설치한 래버린스실을 구비한다. 래버린스실은 단부면 커버에 형성한 제1 경사부와 주축 커버에 형성한 제2 경사부를 갖는다. 냉각액은 래버린스실로 들어감으로써 압력을 내려, 주축과 주축 하우징 사이에 침입하기 어렵다. 냉각액은 래버린스실의 내부에서 제1 경사부 또는 제2 경사부에 부착된다. 제2 경사부에 부착된 냉각액은 경사를 따라서 내주측으로 미끄러져 제1 경사부에 낙하한다. 제1 경사부에 부착 또는 낙하된 냉각액은 경사를 따라서 외주측으로 미끄러져 래버린스실의 외부에 떨어진다. 주축 장치는 래버린스실에 침입하는 냉각액을 저감시키고, 또한 래버린스실 내부에 저류되는 냉각액을 배출함으로써, 주축과 주축 하우징 사이에 냉각액이 침입하는 것을 방지한다. The spindle device of the machine tool of the present invention includes a labyrinth seal provided between the spindle cover and the end face cover. The labyrinth thread has a first inclined portion formed in the end face cover and a second inclined portion formed in the main shaft cover. The coolant is lowered in pressure by entering the labyrinth chamber, making it difficult to penetrate between the spindle and the spindle housing. The coolant is attached to the first inclined portion or the second inclined portion in the labyrinth chamber. The coolant attached to the second inclined portion slides toward the inner circumferential side along the inclined portion and falls to the first inclined portion. The coolant attached or dropped to the first inclined portion slides to the outer circumferential side along the inclined portion and falls to the outside of the labyrinth chamber. The spindle device reduces the cooling liquid that enters the labyrinth chamber and discharges the cooling liquid stored in the labyrinth chamber, thereby preventing the cooling liquid from infiltrating between the spindle and the spindle housing. 공작 기계, 주축 장치, 하우징, 래버린스실, 냉각액 Machine tool, spindle, housing, labyrinth seal, coolant

Dust seal as well as its utilisation on an electric hand tool and tool

Manual control for laboratory micro-motors with tool collet chuck

The collet chuck (20) is driven by means of a shaft (18,23) of the control and pivot mounted in a front or back bearing (17,17a). The control has a compressed air barrier produced after the front bearing by a turbine. The turbine sucks up air through a suction opening (15) on the rear housing part of the micro-motor. The air is then ejected forwards through an annular gap (25) on the outside of and near the implement-collet chuck. The turbine has an impeller wheel (26) fixed to the micromotor shaft (18), and has a guide-plate fixed to the stationary part (13) of the control. The sucked-in air is guided via longitudinal ducts (14) into a chamber (16) after the bearing.

Oil retaining device for linear driving device

(57)【要約】 【課題】回転駆動力を直線駆動力に変換する直線運動変 換機構において、ネジ摺動部の潤滑剤の飛散や落下を的 確に防止し、直線移動ストロークの制限を生じない防油 構造。 【解決手段】直線変換された駆動力を外部に伝達する外 部伝達ブロック３５の直線移動に伴う開口部８５を覆う 防油カバー構造。

Hydrostatic seal for machine tool spindles

Motor with cutting tool mounting hole

ブラシレスＤＣサーボモータ（１）の中空モータ軸（４１）の軸端部（４１３）には、工具ホルダープレート（５１）が固定され、ここに形成した工具取り付け孔（５１ａ）に切削工具を取り付けてワークの切削加工が行われる。中空モータ軸（４１）の軸端部（４１１）とモータハウジング（２）の端板部分（２２）の間からモータ内部に切削粉を含む切削加工油が侵入することを防止するために、金属プレート（５３）、工具ホルダープレート（５１）、軸端部（４１１）の間に、軸線方向（１ａ）に延びる二重の微細幅の円形溝（５５３、５５５）を含むラビリンスシール（５５）が形成されている。他方の軸端部（４１４）にも同様な構造のラビリンスシール（５６）が形成されている。モータ内部への切削加工油の侵入を防止でき、切削加工油に含まれる切削粉がオイルシール（４８、４９）に付着してこれらが早期破損する等の不具合を回避できる。 A tool holder plate (51) is fixed to the shaft end (413) of the hollow motor shaft (41) of the brushless DC servo motor (1), and a cutting tool is attached to the tool attachment hole (51a) formed here. The workpiece is cut. In order to prevent cutting oil containing cutting powder from entering the motor from between the shaft end portion (411) of the hollow motor shaft (41) and the end plate portion (22) of the motor housing (2), a metal A labyrinth seal (55) including a double fine circular groove (553, 555) extending in the axial direction (1a) is provided between the plate (53), the tool holder plate (51), and the shaft end (411). Is formed. A labyrinth seal (56) having a similar structure is also formed on the other shaft end (414). Intrusion of the cutting oil into the motor can be prevented, and problems such as cutting powder contained in the cutting oil adhering to the oil seal (48, 49) and premature breakage thereof can be avoided.

Machine Tools

Hammer actuated by means of a hydraulic system, in particular suitable for use in dusty, corrosive, and similarly hostile environments

Machine tool and tool holder

A machine tool having a turning function and a milling function includes a spindle, a spindle housing supporting the spindle in a rotatable manner, a main clamp provided at the spindle, an auxiliary clamp provided at the spindle housing, and a double arm with a first gripper and a second gripper. The auxiliary clamp clamps a tool holder together with the main clamp during fixing a fixed tool. The double arm exchanges a tool holder grasped at the first gripper for another tool holder grasped at the second gripper by rotating and sliding movements. The auxiliary clamp is arranged at a position not interfering with the double arm that moves during exchanging tool holders. By such a configuration, a machine tool achieving a clamping force sufficient to withstand the load during a turning process, and that allows tool exchange in a short period of time, and a tool holder employed in such a machine tool, can be provided.

Main shaft device

本发明涉及具有良好的防水功能的主轴装置。该主轴装置的旋转部件(40)的至少一部分由碳纤维复合材料形成，固定于主轴装置(10)的旋转轴(11)且能够与该旋转轴(11)一体旋转，并且构成抑制液体渗入前侧轴承(50、50)的防水构造的一部分。

SEALING METHOD AND DEVICE FOR TREES

Electric actuator

Electric actuator

本发明的电气致动器具有机身(12)，它包括一个在其内的孔(14)和一个安装在机身(12)的一端的电动机(16)。电动机(16)有一个被共轴连接在馈送螺杆(20)上的旋转轴和一个拧合在馈送螺杆(20)上的馈送螺帽(22)。孔(14)包含了一个围绕着馈送螺杆(20)的被可滑动地安装的圆柱形管状构件(24)。馈送螺帽(22)被固定在管形构件(24)的一端，支架(26)被安装在管状构件(24)的另一端，该支架(26)是为了输送工件用。

Percussive drill or jackhammer dust etc. removal attachment

Upper (4) and lower (6) cylinders slide into one another via spring bolts (7) during drilling. The drill chuck is additionally protected by a plastics disc or washer dimensioned to seal tight onto the particular drill. The attachment can be supplemented by an expanded leading cylinder suitable for specialty hollow drill bits. Additional components include 90 deg offset bores (3) in the upper cylinder (4) plus a rubber seal (1) bearing against the hole wall.

Mechanical dust-proof liquid-proof auxiliary support apparatus

本发明公开了一种机械式防尘防液辅助支撑装置，包括：支撑组件，其包括：支撑座，其上端具有柱形的缩颈段，该支撑座的内部设有中心孔；支撑轴，其上下可伸缩的设置在中心孔内，支撑轴的头部露出缩颈段；锁紧组件，其设置在支撑座的侧壁，锁紧组件用来将支撑轴锁紧固定在中心孔的特定位置处；以及密封组件，其包括：外形为锥形的支撑帽，其顶部具有支撑面，支撑帽盖设在缩颈段上且与支撑轴的上端固定连接，支撑帽与缩颈段之间设有防尘环；以及排气孔，其设置在支撑座的内部，排气孔将支撑帽与缩颈段围成的空间与外界连通。该辅助支撑装置可以防尘防液。

Holder drive unit

Spindle apparatus

Hammer actuated by means of a hydraulic system, in particular suitable for use in dusty, corrosive, and similarly hostile environments

"HAMMER ACTUATED BY MEANS OF A HYDRAULIC SYSTEM, IN PARTICULAR SUITABLE FOR USE IN DUSTY, CORROSIVE, AND SIMILARLY HOSTILE ENVIRONMENTS" Abstract Hammer actuated by means of a hydraulic system, suitable for being used in dusty environments, in particular as the crust-breaker of aluminum electrolysis pots, comprising a device capable of generating an overpressure inside the bottom chamber (7) and of permanently causing a stream of filtered air to flow through the clearance (8) between the tool (6) and the sleeve (9), with said device being constituted by an intake duct (1), a filter (2), a non-return valve (3), a connection duct (10) and a non-return valve (11).

Rotation table

本发明提供搭载在机床的加工工作台上的旋转工作台，其具备被空气驱动而夹紧旋转轴的夹紧机构，为了防止切削液或异物浸入旋转工作台的机壳内而对该机壳内部施加空气净化压力。而且，来自夹紧机构的排放空气不经过施加有该空气净化压力的机壳内部，而经由流道向旋转工作台之外排气。

Work machine

Motor with cutting tool mounting hole

A tool holder plate (51) is fixed to a shaft end part (413) of a hollow motor shaft (41) of a brushless DC servo motor (1), and a cutting tool is mounted in a tool mounting hole (51a) formed in the tool holder plate (51) and a work is cut-processed by this cutting tool. In order to prevent intrusion of a cutting processing oil containing cutting powder into the inside of the motor from between the shaft end part (411) of the hollow motor shaft (41) and an end plate portion (22) of a motor housing (2), a labyrinth seal (55) including a double circular groove (553, 555) having a fine width extended in the axis direction (1a) is formed between a metal plate (53), the tool holder plate (51), and the shaft end part (411). The other shaft end part (414) is also formed with a labyrinth seal (56) of the same structure. Due to this structure, intrusion of the cutting processing oil into the inside of the motor can be prevented, which can prevent trouble such as early destruction of oil seals (48, 49) by attachment of the cutting powder contained in the cutting processing oil to the oil seals (48, 49).

High speed hydrostatic spindle

An integrated spindle and motor unit includes a housing containing both the spindle shaft and motor with hydrostatic bearings around the front and rear of the spindle shaft. The hydrostatic bearings utilize high pressure oil, preferably in the range of 1,200-1,500 psi and provide good load bearing capacity and increased stiffness for improved cutting accuracy when cutting within the full range of cutting speeds. The present spindle unit is designed to be run at high speeds. The front and rear hydrostatic bearing pads are closely axially spaced along the spindle shaft so that the dynamic stiffness of the spindle is increased to avoid resonant vibrations even at high speed operation thereof. The spindle unit incorporates a sealing system utilizing a series of non-contacting seals including a labyrinth seal and aerostatic floating ring seals which keeps bearing oil in the spindle. The aerostatic ring seals have air restrictor openings therein to create an aerostatic air film that also keeps the rings concentric with the spindle shaft even though the spindle shaft is tilted in a nutator. A permanent magnet (PM) motor is integrated with the spindle with the rotor of the motor on the spindle shaft carrying the permanent magnets rotating within the stator of the motor which is attached in the spindle housing. The PM motor herein can provide high levels of power, e.g., at least 100 hp at the tool head, even in the short span provided by the short spindle shaft. At high speeds the bearing fluid may be pumped by viscous pumping from the radial bearing pockets. To counter such viscous pumping, small low pressure pockets are provided with low pressure oil to fill the high pressure pockets with oil.