Передача винт-гайка

Опорное устройство

ОПОРНОЕ УСТРОЙСТВО, содерлсащее размещенные на станине ходовой винт с гайкой и опорные элементы , установленные с возможностью взаимодействи  с поверхностью винта по обе стороны гайки, отличающеес  тем, что, с целью повышени  надежности и точности путем увеличени  жесткости ходового винта, гайка снабжена шкивами, а опорные элементы установлены на станине с возможностью взаимодействи  с введенным в устройство и размещенным на станине унором и снабжены гибкими элементами с грузами , св занными с гайкой при помощи шкивов. A SUPPORT DEVICE, containing a lead screw with a nut and support elements mounted on the frame, which can be cooperated with the screw surface on both sides of the nut, characterized in that, in order to increase reliability and accuracy by increasing the rigidity of the running screw, the nut is equipped with pulleys, and the support the elements are mounted on the frame with the possibility of interaction with the bore inserted into the device and placed on the frame and provided with flexible elements with weights connected to the nut by means of pulleys.

VORSCHUBSPINDEL-LAGERSTRUKTUR

.-Lathe

Vorschubspindeltrieb

Lead Screw and Nut Arrangement

... 1,178,752. Screw-and-nut gearing. GEORGE RICHARDS & CO. Ltd. 1 May, 1968 [1 May, 1967], No. 19986/67. Heading F2Q. [Also in Division B3] A lead screw and nut traverse for a machine tool slide comprises a lead screw E clamped at various positions A, B, C along its length to prevent flexing thereof, the clamps being opened and closed automatically to allow the drive nut F to pass so that only one clamp at a time is undamped. The clamps are opened and closed hydraulically by providing cams, limit switches or an electrical pick-off. To prevent "hunting" on to and fro movement of the slide the clamping initiating position is spaced nearer to the actual clamp than the unclamping initiating position. The lead screw may be fixed rotationally with the nut F rotatable, or may be rotated relative to a fixed nut. The lead screw may comprise a number of parts screwed together.

Improvements in capstan lathes

... 591,539. Lathes. WOODHOUSE & MITCHELL, Ltd., and WALKER, D. Aug. 24, 1944, No. 16119. [Class 83 (iii)] A capstan lathe in which the capstan or rotatable tool-holder a is mounted on a top slide b movable longitudinally on a bottom slide c, the latter being slidably supported by the lathe bed is characterised in that the bottom slide is provided with a nut g, Fig. 2, through which works a horizontal screw h having a plain part h<1> journalled in a part i secured to the bed, the outer end h<2> of the screw being adapted to receive a spanner or other device to enable it to be turned. Lock-nuts j may be provided to hold the screw against rotation after adjustment. Alternatively, the screw may be carried by the bottom slide and the nut fixed to the bed.

DEVICE FOR THE GUIDANCE OF A MEANS OF A SPINDLE OF PROPELLED CARRIAGE

Stützlager bei Antriebs- und Schaltwellen von Werkzeugmaschinen.

Graviermaschine

Vorrichtung zur gegenseitigen axialen Verschiebung einer Welle oder Gewindespindel oder Zahnstange einerseits und eines darauf angeordneten Elementes anderseits

Vorrichtung mit Gewindespindel zur Erzeugung einer translatorischen Bewegung

Vorrichtung zum Verschieben eines Maschinenteils

DEVICE AT A COORDINATE TABLE OF A PROCESSING MACHINE FOR A CARRIAGE DRIVE.

MECHANISM TO THE CORRECTION OF FEED AXLES.

Bearing device for the pins or horizontal trees of machines-putils

BALL SCREW COMPRISING A THREADED ROD SUSTAINED BY UPRIGHTS AND A DISPLACEABLE NUT ALONG THE ENTIRE LENGTH OF THE STEM

L'invention concerne une vis à billes composée d'une tige filetée 4 supportée de façon constante et en plusieurs endroits par des montants 3, et d'un écrou 5 comportant sur sa face inférieure une ouverture apte à être traversée par les montants 3. L'écrou 5 est mobile sur toute la longueur de la tige filetée 4 en fonction des rotations de celle-ci. L'écrou 5 se déplace avec une grande précision. La durée de vie de la vis à billes est augmentée grâce à une structure simple qui empêche les déformations de la tige filetée dues à l'allongement de celle-ci. The invention relates to a ball screw composed of a threaded rod 4 supported in a constant manner and in several places by uprights 3, and of a nut 5 comprising on its underside an opening capable of being crossed by the uprights 3. The nut 5 is movable over the entire length of the threaded rod 4 as a function of the rotations of the latter. Nut 5 moves with great precision. The service life of the ball screw is increased thanks to a simple structure which prevents deformation of the threaded rod due to its elongation.

Carriage apparatus

This specification discloses a carriage apparatus including a carriage movable relative to a fixed base bed and driven by a feed screw or the like. Means for well guiding the movement of the carriage is provided between the base bed and the carriage. A ball nut threadably fitted on the feed screw for driving the carriage is coupled to the carriage through a housing, and means for absorbing displacement of the ball nut is provided between the two. Further, to prevent chiefly the rotation of the ball nut, a bellows having high rigidity for torsion and low rigidity for the other forces is provided between the ball nut and the carriage.

Belastungs-Detektorvorrichtung

STILLSTEHENDE SPINDEL MIT SPIELFREIER ÜBERLASTKUPPLUNG FÜR SCHLITTENANTRIEB VON WERKZEUGMASCHINEN.

FEED-SCREW SUPPORT STRUCTURE

BALL SCREW

A ball screw composed of a screw shaft constantly supported on struts at plural parts and a nut movable over an entire length of the shaft by rotations thereof. The nut moves with a high accuracy, and the durability is improved with a simple structure by preventing screw shaft deflections due to elongation thereof.

A ball screw guide unit

SUPPORTING NUT.

DEVICE FOR SUPPORTING SPINDLES.

DEVICE FOR SUPPORTING AN ELONGATED MOVABLE MEMBER

SPINDLE DRIVE MECHANISM

Unit of guidance to ball screw and table of transport using this unit of guidance

Vis à billes comportant une tige filetée soutenue par des montants et un écrou déplaçable sur toute la longueur de la tig

L'invention concerne une vis à billes composée d'une tige filetée 4 supportée de façon constante et en plusieurs endroits par des montants 3, et d'un écrou 5 comportant sur sa face inférieure une ouverture apte à être traversée par les montants 3. L'écrou 5 est mobile sur toute la longueur de la tige filetée 4 en fonction des rotations de celle-ci. L'écrou 5 se déplace avec une grande précision. La durée de vie de la vis à billes est augmentée grâce à une structure simple qui empêche les déformations de la tige filetée dues à l'allongement de celle-ci.

Bearing device

A bearing device for rotatably supporting the end of a rotational shaft through a slide bearing to a base comprising a through opening perforated at a part of the base for press-fitting the slide bearing, and a retainer containing opening formed at the base to substantially perpendicularly cross the through opening, and a retainer disposed in the retainer containing opening of the base for bearing the axial force of the rotational shaft, thereby reducing the manufacturing cost and improving its accuracy.

Arrangement on coordinate table of processing machine for carriage drive

An arrangement on a coordinate table of a processing machine for driving a carriage movable in an X-direction has a displacing device with a ball screw nut carried by a carriage and a ball screw cooperating with the ball screw nut and having two ends, two end supports each provided at the respective end of the ball screw and being stationary relative to the carriage, two additional supports provided for said ball screw and arranged on the carriage at opposite sides of the nut and movable relative to the carriage in direction of its movement, two stationary abutments each arranged at a respective one of the ends of the carriage and limiting a movement stroke of a respective one of the additional supports when the latter abut against the respective stationary abutment, two releasable abutment locks arranged so that each of the additional supports is arrested during abutment against a respective one of the stationary abutments and released during running against a respective one of the end ...

Устройство для перемещения подвижногоузлА МЕТАллОРЕжущЕгО СТАНКАОТНОСиТЕльНО НЕпОдВижНОгО

Spindelstützvorrichtung auf einem Sockel einer Portalfräsmaschine

Spindelstützvorrichtung auf einem Sockel einer Portalfräsmaschine, die einen Sockel (10) und einen Arbeitstisch (13) aufweist, wobei zwischen dem Sockel (10) und dem Arbeitstisch (13) eine in Richtung der X-Achse sich erstreckende Spindelbaugruppe (20) vorgesehen ist, die eine auf dem Sockel (10) drehbar angeordnete Führungsspindel (21) und eine an der Bodenseite des Arbeitstisches (13) angeordnete, auf die Führungsspindel (21) aufgeschraubte Spindelaufnahme (22) aufweist, und wobei zwischen dem Sockel (10) und dem Arbeitstisch (13) eine Stützvorrichtung installiert ist, die Folgendes aufweist: wenigstens einen Führungsträger (30), der an der Bodenseite des verfahrbaren Arbeitstisches (13) befestigt ist, wobei der Führungsträger (30) als umgekehrtes Trapez ausgebildet ist, und wobei die entlang dem Arbeitstisch (13) in Richtung der X-Achse sich erstreckende Länge des Führungsträgers (30) in drei Teile geteilt ist, und wobei sich eine erste und eine zweite Führungsseite (31, 311) ausgehend ...

FEED-SCREW SUPPORT STRUCTURE

A device for adjusting the axial component for the backlash-free pretension of roller bearings and spindle nuts is specified, the device containing a tension element arranged in the direction of the force lines of the axial support and variable with regard to its regulated condition. Here, the tension element is a stack composed of disc-shaped piezoelements.

"A Ball Screw Guide Unit".

The unit comprises a guide rail (2) formed of a channel bar having a groove (21), and a ball screw shaft (7) engaged with a movable member (3) which is reciprocatively movable in the groove along a lengthwise direction of the guide rail, so that the centroid of the guide rail is adjacent to the axis of the ball screw shaft. Therefore, when a pretension is applied to the ball screw shaft, the straightness of the guide rail is not impaired and a feed accuracy of the movable member can be maintained. Further, the guide rail may be provided at its lower and side surfaces with reference surfaces used for adjusting parallelism between the guide rail and the axis of the ball screw shaft, in which case assembly and adjustment of the table can be performed more easily. ...

Improvements in bearing devices for the driving and feed shafts of lathes and similar machine tools

... 162,630. Schweizerische Werkzeugmaschinenfabrik Oerlikon. April 28, 1920, [Convention date]. Tumbler bearings for the feed &c. shafts of lathes and like machine tools are actuated bv a guide rail or cam secured to the saddle or slide. Bearings 2, Fig. 1, for shafts 3, 4 are carried by transversely sliding bars 5 bridged at 6 and provided with a spring 8 and set-screw 7 for determining the operative position of the bearings. As the saddle passes, a cam (not shown) engages the roller 9 and moves the bearings laterally to a clear position. In a modification, the bars 5 are positively controlled in both directions by a roller on the rear end of the upper bar engaging a channel bar secured to the rear of the saddle. The bearings 11 in this construction are concave to suit the shafts, and are mounted on the bars by means of bell-crank levers 15. When the bars are retracted, springs 19 in conjunction with set-screws 18 maintain the bearings in position until the ends of the bars pass under recesses ...

MECHANICAL LINEAR UNIT.

Electronic engraving machine

STANDING SPINDLE WITH OVERLOAD CLUTCH FREE FROM PLAY FOR CARRIAGE DRIVE OF MACHINE TOOLS.

Device to mutual axial shift of a screw pillar and a support bearing

Self-centering device for linear drive units

SUPPORT SPECIAL POUR VIS DESTINE A ETRE EMPLOYE DANS LES MACHINES-OUTIL SUPPORT SPECIAL POUR VIS DESTINE A ETRE EMPLOYE DANS LES MACHINES-OUTILS A CONTROLE NUMERIQUE

... a. Dispositif de support rigide pour vis, qui permet dilatations thermiques lentes de la vis elle-même. b. Ce dispositif est caractérisé en ce qu'une extrémité de la vis est fixée par des paliers axiaux montés de façon traditionnelle, tandis que l'autre extrémité est fixée au moyen de paliers axiaux fixés à un organe coulissant. c. Le dispositif selon la présente invention peut être employé pour supporter rigidement les grandes vis utilisées d'habitude dans les machines-outils, en particulier dans les machines à contrôle numérique.

DEVICE FOR SUPPORTING AN ELONGATED MOVABLE MEMBER

STATIONARY SPINDLE WITH BACKLASH-FREE OVERLOAD COUPLING FOR THE CARRIAGE DRIVE OF A MACHINE TOOL

Vorrichtung zum Ausgleich von Vorschubschwankungen bei einem durch eine Leitgewindespindel angetriebenen Schlitten von Werkzeugmaschinen, insbesondere bei Drehbaenken und Schleifmaschinen zur Herstellung von Gewindewerkstuecken

STEUERVORRICHTUNG MIT EINER MESSSPINDEL UND EINEM MITLAUFTEIL

Spindelantrieb

Die Erfindung betrifft einen Spindelantrieb, umfassend eine drehantreibbare Gewindespindel (2), einen mittels der Gewindespindel entlang einer Führungsschiene (4) verstellbaren Laufwagen (6), sowie mehrere in Richtung der Spindelachse vor und hinter dem Laufwagen (6) angeordnete Führungswagen (10, 12) zum Abstützen der Gewindespindel, wobei die bei einer Zustellbewegung des Laufwagens (6) vor diesem angeordneten Führungswagen (10, 12) durch den Laufwagen nacheinander zusammengeschoben und zu einem Spindelende hin bewegt werden, und wobei die hinter dem Laufwagen angeordneten Führungswagen über einen Kopplungsmechanismus nachgeschleppt und in eine zugeordnete Abstützposition bewegt werden. An den Führungswagen (10, 12) und am Laufwagen (6) sind miteinander zusammenwirkende, durch an der Führungsschiene (4) fest angeordnete Schaltmittel (13) betätigbare Kopplungsmittel vorgesehen, mittels derer die vor dem Laufwagen (6) angeordneten Führungswagen (10, 12) mit dem jeweils von hinten auflaufenden ...

Improvements in screw-cutting lathes

... 279,646. Holbrook, R. E. Nov. 9, 1926. Turning. - In a screw-cutting lathe the acting face of the sta tionary thrust member of the lead screw is adapted to tilt in any direction transverse to the axis of the screw and thus prevent periodic errors in the pitch of the screw being cut due to inaccuracies in the thrust face. The lead screw 2 is reduced at 5 to provide a collar at the end, thrust in one direction being taken by a face 3 of the collar and in the other direction by a face 4. A thrust washer 9, preferably of chilled phosohor bronze, bears against the surface 3 and has a conical recess 12 to receive a spherically ended pin 10 adjustable, for taking up wear, in a casing 7 attached to the end bearing 6 of the lead screw. A second thrust washer 19, which is U-shaped or divided to pass over the end of the lead screw, bears against the face 4 and against an integral ring 16 having a spherical surface for engaging a conical recess 15 in the bearing 6. The bore of the ring 16 is large ...

Stressing of load-bearing members

... 1,140,166. Prestressing rods; screw and nut gearing. MARWIN MACHINE TOOLS Ltd. 13 May, 1967, No. 22297/67. Headings F2G and F2Q. [Also in Division B3] A load-bearing member, e.g. a lead screw, tie bar or strut is stressed to reduce the effect of vibrations, temperature fluctuations or backlash by means of a column of fluid applied to one end of the member and maintained at substantially constant pressure, the stiffness of the column of fluid being of the same order of magnitude as or greater than that of the member itself. A lead-screw 10 with feed nut 12 has one end fixedly mounted by bearings 22, 24, 28 and the other end is mounted by means of bearings 42, 44 in an hydraulic cylinder and piston unit 40, 53, 46 pressure in which is maintained at a substantially constant value in order to apply the desired tension to the lead screw. The invention is stated to be applicable to machine tools, measuring instruments, television and radio masts and like structures. Pneumatic pressure may be ...

BALL SCREW

Improvements in machines for producing helically toothed or fluted gears, cutters, hobs and the like

... 440,253. Making hobs &c. KLINGELNBERG, G. A., KLINGELNBERG, W. H., and KLINGELNBERG, H. W., (trading as KLINGELNBERG SOHNE, W. F.), 56, Berghauser Strasse, Remscheid, Berghausen, Germany. Oct. 2, 1935, No. 27207. Addition to 407,950. [Class 83 (iii)] [See also Group XXIII] The machine for relieving hobs &c. described in the parent Specification is modified by the provision of means for eliminating the backlash in the gearing driving the table lead-screw 1 so that the tool may operate on the work 25 during both forward and return strokes of the work-table 24. The lead-screw has an extension 3 carrying splined bushes 4, 5, supporting the members 8, 9 which together form a piston located between end flanges on the bushes. An annular member 10 located in a recess in the piston is screwed to members 11, 12 forming a fixed cylinder. A fixed sleeve 15 on the member 8 is screwed to receive a nut 16 which may be rotated by worm gearing 17 to adjust the clearance 18 between the piston and the nut ...

Improvements in turning lathes

... 213,212. Wade, F. R., and C. A. V. Small Tools, Ltd. Dec. 18, 1922. Turning.-A small lathe such as is described in Specification 212,976 is provided with means for preventing axial movement of the longitudinal feed-screw, the cross-feed screw and/or the tailstock adjusting screw. The longitudinal feedscrew g which is mounted within the tubular bed a is operated by a hand-wheel k and is provided with a groove l to receive two keys m, m fitting in a slot n in the bearing o. The inner ends of the keys are shaped to fit the spindle as shown in Fig. 2 while the outer ends are curved to correspond with the bearing o which is flanged at q and is secured to the bed by screws r. The cross-feed screw u is similarly mounted in a flanged bearing x secured to the slide-rest by screws y, and is held axially by means of keys u. The back centre 6 of the tailstock h is square in cross-section and is adjusted by a screw 9 operated by a hand-wheel 10 and held against axial movement in its bearings 12 by locking-keys ...

SUPPORT ARRANGEMENT FOR A LONG ONE, CELEBRATION CLAMPED SPINDLE

Feed chuck impulse

feed chuck impulse

Linear positioning apparatus

To support a long spindle with a spindle nut thereon, a plurality of support elements are located in a housing (1), the support elements (26, 226) including spring-biassed sliders which, when positioned at predetermined stop recesses (48) in the inside of the housing (1) engage the stop recesses. Upon movement of the spindle against a support element (26, 226), the spring-biased sliders are pushed out of the recesses and the lifting movement of the sliders engages a projecting connecting dog (44, 53) in the groove of a take-up carrier rail, the groove being closed off at the end. As the spindle nut (5) moves, support elements (26) are pushed ahead of the leading face thereof, with respect to the movement of the spindle nut, and collected. Upon reversal of movement of the spindle (4), the end stop (51) of the take-up carrier rails pulls the support elements (26, 226) along until a support element snaps into a stop recess (48), thus releasing the connecting dog (44, 53) from the groove (50 ...

KUGELUMLAUFSPINDEL

EINRICHTUNG FUER DIE KOORDINATENPOSITIONIERUNG

Nut and leadscrew assembly

... 940,519. Lathes. ROLLS-ROYCE Ltd. Jan. 11, 1962, No. 1155/62. Heading B3T. [Also in Division F2] A rotatable screw 27 for indicating and/or controlling the axial movement relatively to a fixed nut 31 of a housing 51 in which the screw is mounted, is supported at its ends in ballbearings whose outer races are carried in intermediate members 43, 44 mounted in housing members 45, 46 by resilient 0-rings 47 which permit limited radial movement, the screw being axially located between a spring 60 at one end and a dumb-bell shaped thrust member 54 at the other end, the member 54 tilting to accommodate radial movements of the screw. The nut 31 has recirculating balls 33 and is coupled to a backlash-preventing nut 30 by a packing- piece 32. As shown, the screw is enclosed in a housing 51 secured to a lathe cross-slide 15 running on a guide 14 to which the nut 31 is secured, the cross-slide, Fig. 1, being moved by a separate lead-screw. The screw 27, which is reversible, is thus rotated as the slide ...

BEARING DEVICE FOR THREADED SPINDLES

ABSTRACT There is disclosed herein a bearing for high-precision transport spindles used in machines for electrical reproduction technology, machine tools, measuring installations and the like, wherein axial movement due to bearing tolerances are eliminated by the bearing device of this invention. The radial and axial bearing of the spindle are decoupled from one another by means of the bearing device, thereby eliminating the axial dislocation errors.

DEVICE FOR SUPPORTING SPINDLES

Process and apparatus for the order of the movements of variable components, for example in the machine tools

SELF-CENTERING DEVICE FOR LINEAR DRIVE UNITS

A linear unit (1) comprising a profiled rail (2) along which a carriage (3) is arranged for sliding motion backwards and forwards by means of a reversible screw (4) which actuates the carriage and on either side of the carriage passes through a bore (7) in a screw support (8). A pull rod (24) displaces the screw support backwards and forwards along the profiled rail between to end stop positions, and the screw support serves as a support bearing carrying the screw between bearings (10) supporting the screw at its ends. A self-centering device for automatic centering of the screw in the screw support is formed with a self-centering element (11) mounted in the screw-support bore, said element slidingly abutting against the screw both when the screw is rotating in either one of its directions of rotation and when the screw support assumes its end stop positions. The pull rod kinetically interconnects the screw supports located on either side of the carriage, whereby as the carriage is displaced ...

FEED SCREW DEVICE AND PRECISELY POSITIONING MICROMOTION FEED SYSTEM

A feed screw device which comprises a fixing member, a feed screw shaft rotatably supported on the fixing member, a nut fastened to the feed screw shaft and, secured to the nut, a member to be fed, and wherein a force is transmitted from the fixing member through the feed screw shaft and the nut, said device being provided with an elastic member which is elastically deformable in the axial direction in a portion through which the force of the feed screw shaft passes. An actually acting force can be detected from the elastic deformation value of this elastic member. Furthermore, a displacement producing means is disposed in parallel with the elastic member to form an axially extendable portion, whereby a precise minute displacement can be produced through the elastic deformation of the elastic member. Furthermore, a pre-load to be applied to the balls of the nut can be adjusted through the utilization of this axially extendable portion.

Устройство для перемещения подвижного узла металлорежущего станка

Изобретение относитс  к станкостроению и может быть использовано в крупных точных станках различных типов, преимущественно в крупных координатно-расточных станках, в которых при перемещении подвижного узла на значительный ход необходимо обеспечить повышенную виброустойчивость и жесткость механизма подач дл  достижени  высокой точности выхода на заданное положение. Цель изобретени  - повышение надежности и упрощение конструкции устройства за счет отсутстви  дополнительных энергетических систем дл  управлени  промежуточными опорами винта. При вращении ходового винта 3 гайка 9 вместе с кулачком 10 и подвижным узлом 1 перемещаютс  по неподвижному узлу 2. При подходе к первой промежуточной опоре 8 гайка 9 своим кулачком 10 наезжает на выступ 17 фиксатора 15, освобожда  промежуточную опору 8 от фиксации. При дальнейшем перемещении гайка 9 наезжает на промежуточную опору 8 и поворачивает ее. После прохождени  гайкой 9 промежуточной опоры 8 она возвращаетс  в исходное положение под действием пружин 13. 1 з.п.ф-лы, 3 ил. The invention relates to machine tools and can be used in large precision machines of various types, mainly in large coordinate-boring machines, in which when moving a movable assembly for a considerable stroke, it is necessary to ensure increased vibration resistance and rigidity of the feed mechanism in order to achieve high accuracy of the output to the specified position. The purpose of the invention is to increase the reliability and simplify the design of the device due to the absence of additional energy systems for controlling intermediate propeller supports. When the spindle 3 rotates, the nut 9 together with the cam 10 and the movable unit 1 move along the fixed unit 2. When approaching the first intermediate support 8, the nut 9 with its cam 10 hits the protrusion 17 of the retainer 15, releasing the intermediate support 8 from locking. Upon further movement of the nut 9 runs into the intermediate support 8 and turns it. After passing through the ...

Stützschraubenmutter.

ROLLER BEARING FOR A SCREW SPINDLE

LATHES

... 1346989 Screw feeds ALFRED HERBERT Ltd 19 April 1971 [10 April 1970] 17117/70 Headings B3B and B3T In a lathe, a yieldable connection is provided between a displaceable part of the lathe, such as a tool support, and a fixed part of the lathe such as the frame or workpiece, to prevent damage to the parts or their driving mechanism should the parts collide during a machining operation. In the embodiments described the yieldable connection is incorporated either in the lead screw support or the nut in the lead screw feed mechanism for the tool carriage. In Fig. 2 one end of the lead screw 19 is carried by a roller and thrust bearing assembly 22, 23 respectively and between the bearing housing 20 bearing bush 24 there are provided a plurality of dished springs 25 which are pre-loaded by nut 27. The pre-loading of the springs permits rigidity during normal operation but permits axial yielding of the lead screw should collision between the tool support and frame or work occur. Alternatively the ...

DEVICE FOR SUPPORTING SPINDLES

A support is provided for high-precision, long threaded spindles which are extremely thin, and which are employed in systems in electronic reproduction technology, machine tools, measuring instruments, and the like. The support includes a bearing block pivotable in three dimensions through use of a hemispherical support bearing. The bearing block has two rollers thereon, one of which is slightly tiltable.

DEVICE ADAPTABLE TO the TABLE COORDINATED Of a MACHINE Of MACHINING, FOR the DRIVE OF the CARRIAGE

LATHES HAVING SHAFT SUPPORTS

Unit of guidance to ball screw and table of transport using this unit of guidance

L'invention concerne une unité de guidage à vis à billes comportant un rail de guidage (2) formé d'une barre profilée pourvue d'une rainure (21); un organe mobile (3) interposé entre des surfaces latérales de la rainure par l'intermédiaire de billes et apte à se déplacer le long d'une direction longitudinale du rail; une tige de vis à billes (7) portée mobile en rotation par le rail et vissée dans l'organe mobile, en vue d'imprimer à ce dernier un mouvement de va-et-vient le long du rail; et un mécanisme de précontrainte (50) destiné à appliquer une contrainte de tension axiale à une partie de la tige de vis à billes, entre des parties de roulaient (410, 420) prévues au niveau d'extrémités opposées du rail. L'invention concerne également une table de transport utilisant cette unité de guidage.

MACHINE TOOL

The present invention relates to a machine tool, comprising: a rotating body; a housing to accommodate the rotating body; a bearing disposed between the rotating body and the housing; and a retainer which is threadedly coupled to the rotating body or the housing, and pressing the bearing. Accordingly, a pretension operation is able to easily be performed without a grinding process, and various materials are able to be used as a material for the retainer. COPYRIGHT KIPO 2017 ...

STOEDMUTTER

Machine tool, in particular long-bed machine tool

A machine tool, in particular a long-bed machine tool, comprises a column (11) that can be displaced in at least a first axis (13), and at least one spindle (15) clamped rotatably at support points (22, 23) in the region of its two outer ends (20, 21). The spindle (15, 16) extends parallel to the first axis (13) and is joined to the column (11) in such a way that when the spindle (15) rotates, the column (11) is displaced in the first axis (13). A damping apparatus (28) acting on the spindle (15) between the support points (22, 23), which damps any vibrations of the spindle, is provided on the machine tool. The damping mechanism (28) is displaceable along the first axis (13) at least to some extent independently from the column (11).

POSITIONING ERROR COMPENSATOR

PURPOSE:To compensate positioning error with high resolution power of a piezoelectric element by providing a piezoelectric element for a bearing holder or a nut holder and mounting a controller which changes application voltage to the piezoelectric element according to error of a feed screw. CONSTITUTION:A table 2 moved by a feed motor 5 turned under the command of an NC device 19 is positioned when the output signal from a position detector 9 coincides with the command value of the NC device 19. At this time pitch error of a pole screw 4, defective turning precision of bearings 8, 12 and 13 or faulty assembly occurs. The control signal according to such error is sent to a piezoelectric controller 21, which changes the voltages applied to piezoelectric elements 14 and 15 to displace the axial position of the pole screw 4 a little so that the positioning error of the table 2 can be compensated.

Axial shaft bearing for spindle shaft - has housing for shaft and piston cylinder unit

The axial shaft bearing is esp. for a spindle shaft. It has a housing in which the shaft is mounted and on which axial tensile force is exerted by a piston-cylinder arrangement (39) at one end of the shaft. Pressure is exerted on both sides of the piston (38) whose surfaces (44,45) are variable. On each side of the piston are the chambers of a cylinder. USE/ADVANTAGE - The tensile forces on the spindle shaft are reduced, and the mechanical load on the axial bearings and machine load is reduced.

Measuring transducer for cutting force or resistance

A film type piezoelectric transducer has electrode layers on both sides of a piezoelectric material film. An insulating film section covers the outside of the electrode films of the piezoelectric sensor and is rigidly attached to it. The feeder screw shaft or similar of a machine tool can pass through a hole in the centre of the piezoelectric sensor and of the insulating film section. The transducer is mounted on a nut (28) threaded on the feeder screw shaft (26) of a workpiece table or on a bearing part of the feeder screw.

Movement element for lathe spindle or hoist

The movement element consists of at least one nut (5) and a threaded spindle (1). The thread in the nut passes through the entire wall. When the spindle rotates, the nut moves past holders (3) and bearings (2) connected to the spindle. Alternatively, the spindle may be held by the holders and the nut may have teeth, and is driven by the engagement of these teeth with a sprocket to move back and forth over the connecting pieces. The element may also consist of at least one shell and a rod.

LINEARANTRIEBSVORRICHTUNG

Stützenanordnung für eine lange, fest eingespannte Spindel

Device for driving a slide on the co-ordinate table of a working machine

An arrangement on a coordinate table of a processing machine for driving a carriage movable in an X-direction has a displacing device with a ball screw nut carried by a carriage and a ball screw cooperating with the ball screw nut and having two ends, two end supports each provided at the respective end of the ball screw and being stationary relative to the carriage, two additional supports provided for said ball screw and arranged on the carriage at opposite sides of the nut and movable relative to the carriage in direction of its movement, two stationary abutments each arranged at a respective one of the ends of the carriage and limiting a movement stroke of a respective one of the additional supports when the latter abut against the respective stationary abutment, two releasable abutment locks arranged so that each of the additional supports is arrested during abutment against a respective one of the stationary abutments and released during running against a respective one of the end ...

A device in linear actuators

DISPOSITIF ADAPTABLE A LA TABLE A COORDONNEES D'UNE MACHINE D'USINAGE, POUR L'ENTRAINEMENT DU CHARIOT

L'INVENTION CONCERNE UN PERFECTIONNEMENT AU DISPOSITIF D'ENTRAINEMENT DU CHARIOT MOBILE ASSOCIE A LA TABLE A COORDONNEES D'UNE MACHINE D'USINAGE. LE CHARIOT 2 ETANT ENTRAINE PAR UN ECROU A BILLES 4, COOPERANT AVEC UNE VIS 3, DONT LES EXTREMITES SONT SUPPORTEES DANS DES PALIERS DE BOUT 5 ET 6, L'INVENTION PREVOIT DES PALIERS AUXILIAIRES, 8 ET 8, POUR LA VIS 3, QUI SONT MONTES COULISANTS SUR LE CHARIOT 2, ENTRE L'ECROU 4 ET DEUX BUTEES FIXES, 13 ET 13. L'INVENTION EST APPLICABLE NOTAMMENT AUX TABLES A COORDONNEES DES PRESSES A DECOUPER, POUR REDUIRE LA PORTEE ENTRE PALIERS DE LA VIS ET EVITER L'APPARITION DE VIBRATIONS DE FLEXION.

BALL SCREW DEVICE COMPRISING A THREADED ROD SUPPORTED BY POSTS AND A DISPLACEABLE NUT ALONG THE ENTIRE LENGTH OF THE ROD

Improvements brought to the machine tools comprising of the variable components which must come to occupy of the exact positions

PRE?STRESSING OF LOAD?BEARING MEMBERS

DEVICE ADAPTABLE TO the TABLE COORDINATED Of a MACHINE Of MACHINING, FOR the DRIVE OF the CARRIAGE

BEARING ARRANGEMENT OF A VERTICALLY STANDING DRIVE SPINDLE

Lageranordnung einer vertikal stehenden Antriebsspindel, insbesondere einer senkrechten Zustellachse einer Werkzeugmaschine, gekennzeichnet durch zwei einander in Achsrichtung hintereinander geschaltete Wälzlager, von denen eines ein Axial-Schrägkugellager (4) und das andere ein Radial-Schrägkugellager (3) ist, wobei das Axial-Schrägkugellager (4) - gesehen in Richtung der in Achsrichtung anliegenden Gewichtskraft der Antriebsspindel (5) - dem Radial-Schrägkugellager (3) nachgeschaltet.

Feed drive arrangement for machine tool table etc. - has leadscrew supported in rotatable nuts of crossbeams which are driven along bed guideways at half table speed by auxiliary leadscrew and which raise critical speed of leadscrew

The table (10) has linear ball bearing units (8) running on guideways (6), and is driven along the bed by a leadscrew (2) supported in end bearings and engaging with a recirculating ball nut (3) fixed to the table. Also running on the guideways (6) are two crossbeams (13,14) connected by a bar (15) and having rotatably mounted recirculating ball nuts (4,5) in engagement with the leadscrew (2). Driven at half speed by a timing belt from the leadscrew (2) is an auxiliary leadscrew (16) of the same pitch and in engagement with a nut (24) fixed to the crossbeam (13) nearest the feed drive motor (23). Since the crossbeam nuts (4,5) are rotatably mounted the position of the beams along the bed is determined only by the rotation of the auxiliary leadscrew. Corresponding to the movement of the table (10) the crossbeams move at half speed to maintain optimum support of the leadscrew. USE/ADVANTAGE - Feed drive arrangement for machine tool table etc. raises critical speed of leadscrew and minimises ...

Lageranordnung einer vertikal stehenden Antriebsspindel

Lageranordnung einer vertikal stehenden Antriebsspindel, insbesondere einer senkrechten Zustellachse einer Werkzeugmaschine, gekennzeichnet durch zwei einander in Achsrichtung hintereinander geschaltete Wälzlager, von denen eines ein Axial-Schrägkugellager (4) und das andere ein Radial-Schrägkugellager (3) ist, wobei das Axial-Schrägkugellager (4) - gesehen in Richtung der in Achsrichtung anliegenden Gewichtskraft der Antriebsspindel (5) - dem Radial-Schrägkugellager (3) nachgeschaltet.

Feed drive for a slide mounted on a machine tool frame

The invention proposes a feed drive for a machine tool slide, the said drive having a feed screw mounted on the machine tool frame and a feed screw nut mounted in the slide, the feed screw (8) being surrounded in the cutting region by a tube (6) which is displaced with the movement of the slide (2) in the machine tool frame. The tube (6) forms a support between the slide (2) and the machine tool frame which provides support for the feed screw (8). ...

Improvements in or relating to Screw Cutting Lathes or like Machines.

... 128,733. Lineham, W. J. June 26, 1918. Ball bearings; sphericaljournal bearings. - The thrust of the lead screw in screw-cutting lathes and like machines is taken by a strut with spherical ends. The strut B has balls b secured in cavities in its ends and adapted to engage recesses in the end of the lead . screw a and an adjusting-screw C. The strut may be held in position by a light spring d<1> and cap d.

Improvements in horizontal boring, drilling and milling machines and other machine tools

... 773,620. Boring, facing and milling machines; machine-tool details. NEW BRITAIN MACHINE CO. Nov. 18, 1954 [Nov. 23, 1953], No. 33422/54. Class 83 (3). A machine-tool comprises a movable element to be accurately positioned on a support, first and second screw-threaded-members respectively associated with the movable and support members, and force-applying means operatively connected to one of the elements and to the threaded-member associated therewith for applying to the latter a force tending to disengage the thread-surfaces for relieving the movable element from forces tending to cause any additional movement. The invention may be applied to the cross-slide feed-means of a horizontal boring, facing and milling-machine. The cross-slide F, Fig. 3, is moved by a screw 18 rotated by gearing 21 and mounted in the saddle E in bearings 19, 20. A nut 22 secured to the cross-slide co-operates with the screw for feed. A cover 24 passes through a bracket 23 carrying the nut and protects the screw ...

Improvements in or relating to tumbling shaft support mechanism for lathes and for other suitable purposes

... 594,213. Tumbler bearings. DEAN, SMITH, & GRACE, Ltd., PRIDGEON, H., and BINNS, A. June 29, 1945, No. 16594. [Class 12 (i)] A tumbler bearing arrangement for supporting a lathe lead screw or like shaft comprises a pendulum member 16 fitted with a support pad 17 for the shaft 18 and such member is pivotally carried at 23 on a bracket arm 12 itself pivoted by a stud 3 and adapted to be rocked, on passage of the travelling apron 1 of the lathe, by a striker 2 engaging anti-friction rollers 14 forming the contact abutment on the bracket 12 whereby the pendulum member 16 with its support pad 17 for the shaft 18 is moved away from the shaft, the bracket arm 12 being also connected through a pinion and rock engagement 4/7 with a spring-returned slide sleeve 8 so that after the passage of the lathe apron 1 the bracket arm 12 is automatically returned and so restores the pendulum member 16 to re-position its support pad 17 against the shaft 18. The bracket arm 12 is itself provided at the top end ...

滚珠丝杆用整体轴承机构

本发明公开了一种滚珠丝杆用整体轴承机构，包括，丝杆，其端部设置轴肩部，所述轴肩部设置螺纹部；法兰式轴承套，其内部开有台阶状通孔，所述台阶状通孔由大小圆孔组成，所述大小圆孔同轴设置；轴承组，其由至少两个同型号的轴承组成，所述轴承组安装在所述大圆孔内；压盖，其为圆盘状结构，圆心开有通轴孔，所述压盖一端设有一个圆柱状的凸台，所述凸台装入到所述大圆孔中并与所述轴承组的外端面贴合；锁紧螺母，其与所述丝杆的螺纹部匹配安装；其中，所述轴承组的内端面与所述大小圆孔形成的台阶面相贴合，所述锁紧螺母的内端面与所述压盖的外端面相贴合。本发明大大加强了轴承接触刚性和高精度的稳定的回转性能，且定位精度稳定性好。

Drill distributing machine for distributing drill for ball mill tube flange locating pin hole

本发明属于球磨机筒体法兰配钻技术领域，尤其是涉及一种用于球磨机筒体法兰定位销孔配钻的配钻机具，其特征在于包括固定在球磨机筒体上且带有燕尾滑道的固定底座，设在此固定底座上且与固定底座滑动连接的移动平台，设在固定底座上且位于移动平台后侧的螺旋丝杠，设在固定底座上的电钻夹具和底座高度调整装置。本发明的用于球磨机筒体法兰定位销孔配钻的配钻机具可与J32-2L-38型电钻配合使用，定位准确，装拆方便，利用丝杠改变了电钻的进给方式，提高了钻孔精度与工作效率，并能有效避免人工杠杆轴向进给出现挖刀、伤人、损坏钻具的恶性事故发生。另外，由于配钻机具的一体化设计，还节省了材料成本和人工成本。

Apparatus for Weight balancing and the method thereof

본 발명은 웨이트 밸런싱 장치 및 방법에 관한 것으로서, 특히 변위센서가 장착되고 대차로부터 승강 가능한 베이스판을 이용하여, 에어스프링부에서의 지나치게 높은 공압 설정의 문제를 해결할 수 있는 웨이트 밸런싱 장치 및 방법에 관한 것이다. The present invention relates to a weight balancing device and method, and more particularly, to a weight balancing device and method capable of solving the problem of excessively high pneumatic setting in an air spring by using a base plate mounted with a displacement sensor and liftable from a bogie. will be. 본 발명은 구름판과, 상기 구름판 상부에서 구름 베어링에 의해 전후 좌우로 자유롭게 이동되는 작업대, 상기 구름판의 하부에서 하중을 검출하는 로드셀, 상기 로드셀의 상하 이동을 조절하는 로드셀구동부, 상기 구름판의 상하 이동을 구속시키는 구름판가이드, 내부 공압 조절을 통해 상기 구름판을 지지하는 에어스프링부 및 상기 로드셀구동부, 상기 구름판가이드, 상기 에어스프링부가 장착되어 주행 가능한 대차를 포함하는 웨이트 밸런싱 장치에 있어서, 상기 대차와 상기 구름판 사이에서 상하 이동 가능하도록, 상기 로드셀구동부 및 상기 구름판가이드와 관통 체결되며, 상부면에 상기 에어스프링부가 탑재 가능한 베이스판; 상기 베이스판의 상부면에 사각 배열되어, 상기 베이스판과 상기 구름판 사이의 높이 변이를 검출하도록 형성된 변위센서; 및 상기 대차 상에서 상기 에어스프링부에 대응하는 위치에 장착되어, 상기 베이스판을 승강 또는 하강 시키도록 형성된 구동볼스크류;를 포함하는 것을 특징으로 하는 웨이트 밸런싱 장치를 제공한다. The present invention provides a rolling plate, a worktable which is freely moved back and forth and left and right by a rolling bearing in the upper rolling plate, a load cell detecting a load in the lower portion of the rolling plate, a load cell driving unit for adjusting vertical movement of the loading cell, and vertical movement of the rolling plate. A weight balancing device comprising a rolling plate guide for restraining, an air spring unit for supporting the rolling plate through internal pneumatic adjustment, and a load cell driving unit, the rolling plate guide, and an air spring unit, and a bogie that can run. A base plate which is fastened to the load cell driving unit and the rolling plate guide so as to be movable up and down between the base plate and the air spring unit mounted on an upper surface thereof; A displacement sensor arranged squarely on an upper surface of the base plate, the displacement sensor being configured to detect a height change between the base plate and the rolling plate; And a ...

Ball screw guide unit

내용 없음. No content.

High Straightness Mass Production Processing Equipment for Long Rod Feed Screws

본 발명은 장봉형 이송나사의 고진직도 양산가공 장치에 관한 것으로, 종래에는 일측에서만 바이트로 절삭 가공함으로 인해 장봉이 휘어져 진직도가 저하되어 정밀가공이 어려운 문제점이 있었다. 본 발명은 예시도면 제1도와 같이, 공구대(2)에 부착된 절삭바이트(9)와 대향되도록 연마제(11)가 부착된 지지바이트(10)를 설치할 수 있는 보조공구대(8)를 설치하여 가공시 공작물을 지지하고, 동시에 절삭면을 다듬어 줌으로써 고진직도 확보와 동시에 제품의 양산을 가능케한 것이다.

A screw feeding apparatus

Fine adjustment equipment of feed table

A minute regulation apparatus of a transfer table is provided to allow axial movement of a ball screw in a coupling to which a ball screw and a servo motor are coupled by regulating a thrust pressure applied in the axial direction of a second oil positive pressure bearing by using a variable capillary mechanism, thereby improving the preciseness of position determination. In a minute regulation apparatus for a transfer table, an oil positive pressure bearing increases the preciseness of position determination by regulating a thrust pressure in the axial direction of a ball screw by a bearing of a coupling. The oil positive pressure includes a collar, pocket bodies(421,422), and a bearing installation space(426). The collar is a piston provided in a shaft of an end portion of the ball screw. The pocket bodies are installed on both sides of the collar of the ball screw and a plurality of oil pockets are formed in the pocket bodies. The bearing installation space is formed by penetrating an end portion of the ball screw and the collar and the pocket bodies of the ball screw are accommodated and sealed in the bearing installation space.

Movable body feeding device

Location setting device

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Driving screw system with ball screw support unit

Self-centering device at linear units

A linear unit ( 1 ) comprising a profiled rail ( 2 ) along which a carriage ( 3 ) is arranged for sliding motion backwards and forwards by means of a reversible screw ( 4 ) which actuates the carriage and on either side of the carriage passes through a bore ( 7 ) in a screw support ( 8 ). A pull rod ( 24 ) displaces the screw support backwards and forwards along the profiled rail between to end stop positions, and the screw support serves as a support bearing carrying the screw between bearings ( 10 ) supporting the screw at its ends. A self-centering device for automatic centering of the screw in the screw support is formed with a self-centering element ( 11 ) mounted in the screw-support bore, said element slidingly abutting against the screw both when the screw is rotating in either one of its directions of rotation and when the screw support assumes its end stop positions. The pull rod kinetically interconnects the screw supports located on either side of the carriage, whereby as the carriage is displaced in a sliding motion in one direction it will abut against the screw support located on one side of the carriage for displacement of said screw support from one of its end stop positions to the other one while simultaneously, via the pull rod, bringing along in its movement the screw support located on the other side of the carriage, and reversely.

Numerically controlled machine tool screwed spindle - has one axial end bearing in sliding component separating two hydraulic chambers

The equipment located a screwed spindle in the axial direction at both ends for use where slow extension is possible e.g. due to heat expansion. One end of the spindle is mounted in a conventional thrust bearing (1) and the other by bearing in a sliding component (4). Between this component and the stationary parts (5) two chambers (9, 10) are formed for hydraulic fluid. The chambers are connected together via a suitably calibrated hydraulic resistance (R). There can be two stop valves (12) in the hydraulic fluid circuit, and the sliding component cna be a ring acting as the stop for the thrust bearing the chambers being formed on opposite sides of it.

Feeding unit of machine tool

Self-aligning screw bearing

The invention relates to the installation of a self-aligning flanged nut in pedestal bearings, flanged bearings, spherical plain bearings and sliding bearings and combined self-aligning shaft bearings, pedestal bearings and flanged bearings in machines and plant. The prior art is as follows: self-adjusting ball bearings and sliding bearings and clamping devices for shafts without angular adjustment are known. The invention of the self-adjusting flanged nut and self-aligning shaft bearing has the advantage that in welded constructions, which by their very nature are subject to distortion, no finish machining by means of a portable grinder or a milling machine is required. The spherical inner ring 4 with the round bar 8 adjusts automatically to the correct angular position when the shaft with screw 1 is rotated. In the case of accurate adjustment of the screw or shaft 1, in machine tools for example, adjustment is carried out by centring the pedestal or flanged bearing housing 0 and guaging by means of the fixing screw 12. By virtue of the milled recess in the inner ring 4 and insertion of the round bar 8 in the said recess, a wobbling motion of the shaft or screw 1 is not possible. <IMAGE>

Vibration suppressing device in a feed screw mechanism

In a vibration suppressing device in a feed screw mechanism including a screw shaft rotatably supported on the base bed, and a nut mounted on a movable member fitted on the screw shaft and movable while being guided along the base bed, vibration suppressing means is mounted at a predetermined location on the screw shaft so as to suppress vibration in a radial direction created in the screw shaft during the operation of the feed screw.

Linear and translation guiding module

Module for the linear and translational guidance of at least one element (7) sliding along a guide rail (2) [... lacuna?] linear support through a nut body attached to the sliding element (7) moving along a cylindrical threaded shaft (6) when the latter is turned, said constituent parts being held, contained and installed inside a casing (10) comprising a base wall (11) and opposing side walls (12) whose internal faces (12A) are equipped with guide rails (13) parallel to the cylindrical threaded shaft (6), on which rails (13) there is held and there slides at least one pair of guide pieces (14) arranged fore and aft of the sliding element, each of which guide pieces (14) is provided with a central bore (15) coaxial to the cylindrical threaded shaft (6) for it to pass through and on the two sides of said bore with the [?] recesses (16) enabling them to be mounted and to slide on the rails (13) of the casing (10), the parts (14) independent of the sliding element (7) are connected together by rigid connecting members (17). <IMAGE>

Lead screw supporting structure and precise pre-stretching method thereof

本发明公开了一种丝杠支撑结构，包括丝杠，丝杠左端的支撑结构采用左轴承组和左轴承座以及活动设置在二者之间的轴承盒，轴承盒左端外壁有台阶面且该台阶面与左轴承座左端面之间形成间隙，所述轴承盒中设有调节螺栓，调节螺栓从左到右穿过轴承盒并将右端的平头顶在左轴承座左端面上,还包括用于放置在间隙中的调整垫片，所述左轴承组右端通过轴承盒右端内部台肩定位，左端内圈通过丝杠上的左轴套和左锁紧螺母定位，左端外圈通过左法兰盘与轴承盒固定连接，所述丝杠右端的支撑结构采用轴承形式的支撑结构。本发明的有益效果是：利用控制调整垫片的厚度来实现对丝杠的精确预拉伸，安装调试方便，且拉伸效果可靠。

Support arrangement for a long, fixed spindle

The support structure for a long and firmly clamped spindle (15), at a slide (16) in a machine tool, has supports (1,1',1) which move parallel to the spindle and each has a coupling with a lock/release action at the neighboring support or the slide. A locking bolt at each support is moved between a locked and a released setting, to give the required support position. The locking bolt and coupling work together so that, when the support is in the required position, the bolt is locked and the coupling is released. When the slide or an adjacent support move against each other, the coupling is engaged and the locking bolt is released.

Threaded spindle for a screw spindle gear

A support nut

DEVICE FOR STORING THREAD SPINDLES

A device in linear actuators

Threaded spindle-nut drive assembly with vibration reducing support nut arrangement

A support nut is provided, preferably in a pair of two, on a helically threaded spindle having a drive nut threadedly mounted thereon for axial movement therealong. Each support nut constitutes a supporting device which moves axially along the threaded spindle-nut drive assembly for the purpose of preventing the occurrence of natural vibrations in the spindle. Each support nut (7) includes a ball race (7) which is arranged coaxially with the spindle. The ball race is provided with mutually parallel grooves, which extend transversely to the longitudinal axis of the ball race and the spindle, and with balls, which run in the parallel grooves and in the screw threads of the spindle. A ball retainer is arranged coaxially between the ball race and the spindle and is freely rotatable in relation to the ball race. A nut section is arranged coaxially around the ball race. A locking element is arranged between the nut section and the ball race, such as to enable the ball race to rotate relative to the nut section subsequent to exceeding a predetermined torque between the ball race and the nut section.

Roller bearing for a screw spindle

Ball-screw follow-up supporting device

本发明涉及一种滚珠丝杠随动支撑装置，其包括滚珠丝杠、电机、支架、滑台和随动支撑组件等，所述随动支撑组件包括滑轨、支撑座、滑座、随动连板。支撑座通过滑座可在滑轨上滑动；随动连板通过销轴安装在支撑座里侧，机床床身侧面安装有固定销，随动连板的倾斜面搭在固定销上，支架内侧面设有卡销。随动支撑组件上的随动连板和支撑座可随支架横向移动，进行随动支撑动作。其组成合理，装配简单，操作使用方便，工作可靠，能够实现对超长型机床滚珠丝杠进行随动支撑，进而从根本上解决弯曲变形对滚珠丝杠传动精度的影响。

A complex stage

A complex stage is provided to allow one to four tables to move individually and precisely in an X-axis or a Y-axis in a narrow space. A first conveyance device(10) driven in an X-axis includes a first ball screw(14). The second ball screw driven by using a first reversible motor(13) is installed in a first main frame(12). The first ball screw includes first and second pinion gears(11) facing to each other. The pinion gears have a driving table(15) screwed with the ball screw and a driven table subject to a slide operation. The driving table is paired with the driven table. A second conveyance device(20) driven in a Y-axis includes a second main frame(21). The lower portion of the second main frame is fixed to the driving table and the driven table. The second main frame includes a second ball screw(23) driven by a second reversible motor(22).

Deep drilling machine

Die Erfindung bezieht sich auf eine Tiefbohrmaschine mit einer durch einen Motor antreibbaren Spindel, durch die ein zu bearbeitendes Werkstück spannbar und in eine Drehbewegung versetzbar ist, mit einer Vorrichtung zum Halten des Schafts eines Tiefbohrers und mit einer Bohrbuchse zum Führen der Spitze des Bohrers, wobei die Bohrbuchse in fester Anlage an einer Stirnfläche des Werkstücks haltbar ist. Die Erfindung besteht darin, daß die Bohrbuchse an der Spindel in radialer und/oder axialer Richtung derart abgestützt ist, daß die Spindel die auf die Bohrbuchse durch den Bohrer bzw. das Werkstück angeübten Kräfte aufnimmt. The invention relates to a deep hole drilling machine with a motor-driven spindle through which a workpiece to be machined can be clamped and set in a rotary motion, with a device for holding the shaft of a deep hole drill and with a drill bushing for guiding the tip of the drill, wherein the drill bushing can be held in firm contact with an end face of the workpiece. The invention consists in that the drill bushing is supported on the spindle in the radial and / or axial direction in such a way that the spindle absorbs the forces exerted on the drill bushing by the drill or the workpiece.

Engine-lathe

The steel bushing combination unit being pre-stretched convenient for leading screw

本发明涉及丝杠预拉伸领域，公开了便于丝杠进行预拉伸的钢套组合装置，包括套设在丝杠上的支撑件，支撑件的中部开设有通孔，通孔内安装有套设在丝杠上的轴承钢套，轴承钢套内设有容纳槽，丝杠上套设有轴承组，轴承组位于容纳槽内，轴承组的一端与轴承钢套相抵，轴承组的另一端设有调节机构。本技术方案解决了现有技术中在丝杠的两端同时进行预拉伸，由于两端受力不均而易造成丝杠扭曲变形的问题。

Device for supporting an elongated movable member

1332863 Screw and nut mechanisms R HALLER 7 Jan 1971 [16 Jan 1970] 794/71 Heading F2Q Intermediate support devices 5, 5a for a long screw and nut mechanism comprise a plate 7 mounting gear-wheels 9 in engagement with the screw 2. The wheels 9 are mounted on bearing shafts 10 and are adjustably forced into frictional engagement with the plate 7 by springs 13. The arrangement is such that as the nut 4 moves up the screw 2, Fig. 2, the supports 5, 5a move with it, supporting the screw intermediate of the end bosses 3, 3a, as the wheels 9 are frictionally held against rotation but when the nut 4 passes abutments 6 the support 5a is retained by the abutments so that the wheels 9 rotate, overcoming the frictional resistance thereto and the screw remains supported between the bosses 3, 3a. In an alternative arrangement the screw may be replaced by a rack driven in a longitudinal direction by separate driving means rotating co-operating means. The gear-wheels 9 engage the rack and tend to rotate as it is displaced.

Drive screw system comprising slide bearing and slide bearing

Feed device for screw-cutting lathes.

Method and device for controlling the movements of moving parts, in particular machine tools and the like.

Improvements in or relating to abutments for the lead screws of lathes

138,230. Drummond, A. April 16, 1919. Turning.-To avoid the difficulty of accurately facing the inside surface c<1> of the lead-screw abutment bearing, the thrust collar a abuts an accurately bored and faced sleeve B coned' at c to rest in the. bearing, in which it is secured against rotation. Clearance is provided at b<2>, b<4>.

Slide apparatus

In this slide apparatus, screw shaft supports adapted to support a screw shaft constituting a feed screw mechanism by which a slider is slidingly moved on a track rail are placed on and fixed to an upper surface of the track rail, and one end portion of the screw shaft is supported on a bearing fixed to a bearing support metal member of a thin steel sheet provided on one screw shaft support, whereby the assembling efficiency of the apparatus is improved. The slider is moved forward and backward in a recess of the track rail by a rotational driving force of the screw shaft engaged with a nut provided on the slider. The screw shaft supports supporting end portions of the screw shaft so that the screw shaft can be rotated freely are fixed in a bridged state to a pair of raceways of the track rail. When the lead of the feed screw mechanism is changed or when maintenance work is carried out in this slide apparatus, the screw shaft supports are removed simply from the track rail, whereby the screw shaft and nut can be removed simply from the slider. This enables the working efficiency to be improved.

Linear guide arrangement

The guide device has a base (1) on which a runner group (9) can be guided in the direction of the longitudinal axis (5) of the guide base. This group is driven along the axis by a drive spindle (12) engaged with a nut (15) fixed to the group. There is a spindle support unit (271, 291) either side of the group. An endless rope (31) connects the two support units and is diverted at the ends of the guide base. The rope moves past the runner group, so that the spindle support units can be adjusted along the longitudinal axis.

Screw rod supporting bearing installation assembly with integrally-stretched bearing sleeve

本申请涉及自动化设备技术领域，提供了一种轴承套整体拉伸的丝杆支撑轴承安装组件，用于可转动地安装丝杆并对丝杆预拉伸，包括固定件、安装件以及配合部。固定件在丝杆的轴向的位置固定，安装件用于与丝杆的自由端转动设置，配合部设置于固定件或安装件上。调节件与配合部配合，使得调节件能够调节固定件和安装件在丝杆的轴向的间距，进而调节丝杆的拉伸量。由此，本申请便于调整丝杆的拉伸量，能够保证丝杆的传动精度。

Machine tool

【課題】ボールねじを交換する作業を軽減させることが可能な工作機械を提供する。【解決手段】工作機械（１）は、基台５、移動体６、ナット７ｎ及びねじ軸７ｓを有するボールねじ７、ねじ軸７ｓの端部７２を覆って中心線ＡＸ０を中心としたねじ軸７ｓの回転を許容するキャップ部材８、並びに、基台５に設けられてキャップ部材８を支持する支持部９を備える。キャップ部材８は、本体部８１、及び、該本体部８１よりも軸方向Ｄ１における外側Ｄ１ｏにおいて本体部８１よりも広がったフランジ部８５を有する。支持部９は、基台５に設けられている状態でねじ軸７ｓを軸方向Ｄ１と直交する方向Ｄ２へ通過させる開口９６が設けられて本体部８１を受け入れる凹部９５、及び、該凹部９５が本体部８１を受け入れている状態で軸方向Ｄ１においてフランジ部８５の内側の面８６が突き当たる位置決め部９１を有する。【選択図】図３

Ball screw

Actuator

Electron device mounting equipment

내용 없음. No content.

A kind of Digit Control Machine Tool screw mandrel pretension fixing device

本发明提供一种数控机床丝杆预拉装置，包括大托板、小托板、锁母一以及锁母二，大托板的上方安装有导轨，大托板的正上方左右两侧均开有孔洞，丝杆贯穿孔洞安装在大托板的中间位置，锁母一的左端安装有轴承外圈压紧套，锁母一的有短的安装有轴承内圈压紧套一，轴承内圈压紧套一安装在预拉锁母以及轴承套导向套内部，轴承套导向套通过角接触轴承一连接轴承套，继而安装在大托板左侧位置的孔洞内，锁母二通过连轴器连接伺服电机，锁母二的左端连接有轴承内圈压紧套二，轴承内圈压紧套二安装在轴承外圈压紧盖内部；本发明具有如下的有益效果：使得机床保持原有的精度稳定运行。

Linearly reciprocating conveyor

A linearly reciprocating conveyor is provided to prevent a shaft from being bent due to weight of the shaft and a heavy material even when a length of the screw shaft is elongated. A linearly reciprocating conveyor includes an open-toped frame(100) having installation recesses(110) formed on a bottom and an inner upper end in the longitudinal direction, a screw shaft(400) penetrating the frame and having threads formed on an outer circumference, a roller guide rod(200) inserted into the installation recesses, a carrier(300) having a guide roller(320) installed at a lower side of a body to move along a roller guide rod(200a) and a power transmitting roller(310) inserted between spiral blades(410) of the screw shaft to contact therebetween, a support(500) having a guide roller installed at a lower side to move along the roller guide rod and a supporting roller(510) inserted between the spiral blades of the screw shaft at the central upper part, and a fixed frame(600) fixed between the carrier and the support to maintain a gap between the carrier and the support.

Straight feeding device used for numerical control machine tool

本发明提供了一种用于数控机床的直线进给装置，所述数控机床具有驱动装置，其特征在于，包括：相匹配的丝杠以及丝杠螺母座；具有用于容纳所述第一端的第一孔径的第一轴承座；具有用于容纳所述第二端的第二孔径的第二轴承座；所述丝杠的第一端和第二端分别经由所述第一孔径和所述第二孔径设置于所述第一轴承座和所述第二轴承座之上；以及一端与所述丝杠的第一端连接，另一端与所述驱动装置连接的波纹管联轴器。本发明提供的直线进给装置的结构紧凑灵巧，不需要大功率的驱动电机，节能降耗。所采用的波纹管联轴器不存在背隙，并且具有高扭矩、高刚性。其还能够补偿轴向、径向以及角位移偏差，以精确的将驱动电机的动力传导至丝杠。

Patent DE3928457C2

Bearing

High-precision numerical control lathe

本发明公开了一种高精度数控车床包括床身、床头和底座，床身上侧中间设有一条凹槽，还包括将滚珠丝杆固定在凹槽对应的床身上的丝杆端座和丝杆母座，凹槽正上方设有倒凹型的大托板，在床身上面两侧分别设有一条滑轨，两条滑轨上跨设有大溜板，大溜板可沿两条所述滑轨往复滑动；其中滚珠丝杆螺母，以及设在螺母的两端的螺杆。因本发明的滚珠丝杆中置，使数控车床在运行时，抖动小、磨损小以及精度高，大幅度的减小了加工误差，还提高了使用寿命，保证设备安全。又因在凹槽对应的床身内分别设在了丝杆母座和丝杆端座，使滚珠丝杆的维修、安装和清洁均方便；而且因其具有对称的结构，使其使用寿命得到延长。

Patent JPH0359283B2

Slide device

Electronic component mounting apparatus

An electronic component mounting apparatus has a movable table on which plural component supply units are arranged in parallel. Each of the component supply units accommodate an electronic component to be mounted on a component mounting member. A guide frame supports the table to move in a direction intersecting perpendicularly to a component supply direction of the component supply unit. A driving shaft is arranged in the direction intersecting perpendicularly to the component supply direction of the component supply unit for moving the table. A positioning device positions the component mounting member. A component mounting device holds the components and mounts the components on the mounting member, and a support member supports the driving shaft at a middle thereof.

Drive screw system comprising slide bearing and slide bearing

Drive unit for industrial robot

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

A device in linear actuators

The invention concerns a device in linear actuators comprising a carriage (1) which is guided for movement on or in a rail by means of a rotatable threaded spindle (3) extending in the longitudinal direction of the rail. The spindle runs freely through at least one screw support (2, 17, 18, 20, 21, 22, 23), which serves as a bearing supporting the spindle (3) intermediate the ends thereof. The carriage (1) and the screw support (2, 17, 18, 21, 22) are provided with interacting locking means (4, 5, 6, 7) arranged to cause said screw support (2, 17, 18, 21, 22) to be brought along by said carriage (1) during part of the movement of the latter along the spindle (3). In addition, means (11, 19, 28, 29) are provided for releasing the carriage (1) and the screw support (2, 17, 18, 21, 22) from one another as they pass said means while at the same time they secure the screw support (2, 17, 18, 21, 22) in the position into which it has been moved.

Rolling bearing for use with screwthreaded spindles

A rolling bearing for use with a screwthreaded spindle comprising a relatively thick-walled outer race ring and an inner race ring, rolling members rolling between the two rings, rings of rolling members rolling between the two end faces of the outer race ring and end plates disposed at a distance from the latter faces and connected to the spindle, the end plates being adjustably mounted on the spindle whereby their relative preloading can be adjusted, characterized in that the two end plates have in their bores an internal screwthread corresponding to the screwthread of the spindle and therefore themselves serve for securing and axially adjusting the bearing on the spindle .

工作機械のテ−ブルの親ねじ送り装置

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Unita' di guida con vite a ricircolazione di sfere e tavola di trasporto che utilizza la stessa

Stützschraubenmutter.

一种高速螺母旋转进给丝杠装置

本发明公开了一种高速螺母旋转进给丝杠装置，包括丝杠、丝杠螺母、轴承单元以及驱动单元；丝杠通过丝杠座固定在机床上；轴承单元包括轴承内固定套筒、轴承外固定套筒以及安装在其间的轴承组件，轴承内固定套筒一端与丝杠螺母一端固定连接，另一端与驱动单元固定连接；丝杠螺母设置在丝杠，驱动单元包括第一带轮、第二带轮、同步带以及驱动电机，第一带轮与驱动电机连接，第二带轮套在丝杠上且与轴承内固定套筒连接，第一带轮与第二带轮之间通过同步带连接。本发明公开的高速螺母旋转进给丝杠装置具有结构简单，体积小，便于散热以及运行速度高等优点。

Vorrichtung zum abstuetzen von spindeln.

공작기계용 볼 스크류

본 발명은, 외주면에 나선상으로 축홈이 형성된 볼 스크류 축과, 볼 스크류 축의 외측에 삽입되며 내주면에는 축홈에 대응되는 나선상의 너트홈이 형성된 볼 너트와, 축홈과 너트홈 사이에 회전 가능하게 개재되는 복수개의 볼들로 구성되어, 볼 스크류 축의 회동동력을 볼 너트의 추진력으로 변환하는 공작기계용 볼 스크류 조립체에 있어서, 볼 너트에는, 외부의 냉매를 축홈과 너트홈 사이로 공급되게 가이드하도록 볼 너트 외주면에서 너트홈으로 연통되게 유입통로가 형성되며, 축홈과 너트홈 사이로 공급된 냉매를 다시 볼 너트 외부로 배출되게 가이드하도록 너트홈에서 볼 너트 외주면으로 배출통로가 형성된 공작기계용 볼스크류 조립체를 제공한다. 이와 같이, 공작기계용 볼 스크류는, 볼 너트의 유입통로를 통해 볼 스크류 축의 축홈과 볼 너트의 너트홈 사이로 냉매가 유입된 후, 다시 배출통로를 통해 볼 너트 외부로 배출 이동하면서, 볼 스크류 축, 볼 너트, 볼들을 냉각시켜 열을 신속하게 외부로 열전달하여 열변형이 발생하는 것을 억제시킬 수 있고, 또한 열변형에 따라 수반되는 이송정밀도 저하, 소음 발생 및 부품 파손 등을 방지하는 효과가 제공된다.

Machine tool

一种工作台丝杆支撑装置

本发明提供一种应用于机床设备零部件技术领域的工作台丝杆支撑装置，所述的工作台丝杆支撑装置的工作台本体(1)上安装丝杆(3)，支撑座(2)设置在靠近丝杆(3)位置，支撑座(2)的固定座(4)上安装油缸(5)，油缸(5)内安装活塞杆(8)，活塞杆(8)上设置齿条部，支撑块(6)上固定设置转轴(10)，支撑块(6)通过转轴(10)与固定座(4)活动连接，转轴(10)上固定设置齿轮(11)，活塞杆(8)的齿条部与齿轮(11)啮合，活塞杆(8)与活塞(17)固定连接，本发明所述的工作台丝杆支撑装置，通过支撑座的设置及旋转控制，能够在丝杆不工作时对丝杆起到支撑作用，避免丝杆下垂弯曲问题出现，并且支撑座占用空间小。

数控龙门丝杠支撑结构

本发明涉及数控机床附属装置的技术领域，特别是涉及一种数控龙门丝杠支撑结构；其结构简单、安全系数高，制造成本更低；包括导轨、滑块和连接块，滑块上设置有滑槽，滑槽与导轨相契合，滑块可沿导轨滑动，连接块的底端与滑块的顶端连接，连接块上设置有“V”型槽，“V”型槽内固定设置有耐磨“V”型块。

一种钻铣床丝杆轴承座

本发明公开了一种钻铣床丝杆轴承座，所属领域为机械装置设计技术领域，包括轴承座体、圆柱孔、凸台、轴承孔、注油孔，轴承座体为纵向截面接近于梯形的钢板，其底部中间为半圆柱体与圆柱形凸台融为一体，轴承座体的底部左右两端做成圆弧形，在该位置加工有圆柱孔，轴承座体可以采用螺栓穿过圆柱孔与机床床身固定，在凸台的中心加工有轴承孔，丝杆即通过轴承支撑在轴承孔内，结构简单，成本低，本发明所公开的钻铣床丝杆轴承座，结构简单，轴承座体的应力集中小，内应力小，承载能力强，使用寿命长，安全性好，注油方便。

一种工作台丝杆支撑装置

本发明提供一种应用于机床设备零部件技术领域的工作台丝杆支撑装置，所述的工作台丝杆支撑装置的工作台本体(1)上安装丝杆(3)，支撑座(2)设置在靠近丝杆(3)位置，支撑座(2)的固定座(4)上安装油缸(5)，油缸(5)内安装活塞杆(8)，活塞杆(8)上设置齿条部，支撑块(6)上固定设置转轴(10)，支撑块(6)通过转轴(10)与固定座(4)活动连接，转轴(10)上固定设置齿轮(11)，活塞杆(8)的齿条部与齿轮(11)啮合，活塞杆(8)与活塞(17)固定连接，本发明所述的工作台丝杆支撑装置，通过支撑座的设置及旋转控制，能够在丝杆不工作时对丝杆起到支撑作用，避免丝杆下垂弯曲问题出现，并且支撑座占用空间小。

Moyen de palier de butée destiné à une machine à graver électronique.

스크류 조립체 및 이를 포함한 볼 스크류

본 발명은 스크류를 회전 가능하게 고정하기 위한 조립체 및 이러한 조립체를 포함하는 볼 스크류에 관한 것이다. 본 발명은 실시예로, 외주면에 나사홈이 형성된 스크류의 끝단부를 지지용 베어링에 회전 가능하게 연결시키는 것으로, 상기 베어링에 회전 가능하게 결합되는 베어링 샤프트와, 상기 스크류의 끝단부와 상기 베어링 샤프트를 연결하는 연결너트를 포함하고, 상기 연결너트는 상기 나사홈의 골에 맞물리는 나사 결합으로 상기 스크류의 끝단부와 결합되는 스크류 조립체를 제시한다.

一种稳定性好的丝杠移动式支撑机构

本发明公开了一种稳定性好的丝杠移动式支撑机构，包括支撑座，所述支撑座顶端两侧均固定连接有丝杆支撑块，所述丝杆支撑块一侧设置有第一固定套，所述丝杆支撑块另一侧设置有第二固定套，所述第二固定套一端固定穿设有第二安装环，所述第一固定套一端固定穿设有第一安装环，所述第二安装环内侧以及第一安装环内侧均固定连接有防尘罩，所述丝杆支撑块两侧均开设有与防尘罩相匹配的阻隔槽，所述防尘罩不与阻隔槽内壁接触，所述第二固定套另一端固定穿设有往复丝杆；通过在往复丝杆与丝杆支撑块连接处加装防尘罩，有效减少了灰尘进入到轴承内部，减少了灰尘对轴承的影响，减缓了轴承的磨损，保障了轴承转动的流畅性。

Spindeltrieb

活塞缸专用铣床的丝杆驱动机构

本发明涉及一种活塞缸专用铣床的丝杆驱动机构，它包括固定于基座上的丝杆固定座、丝杆本体、丝母、滑轨、滑动连接于滑轨上的滑动座，滑动座与丝母相固定连接，夹具安装座安装于滑动座上，夹具固定于夹具安装座上，滑轨有两条，分别为V型滑轨和平面滑轨，V型滑轨包括第一下半部和第一上半部，第一上半部在前后方向上凸出于第一下半部外，且第一上半部的上端面上设有V型槽，平面滑轨包括第二下半部和第二上半部，第二上半部在前后方向上凸出于第二下半部外，滑动座的下端面具有分别与V型滑轨以及平面滑轨相匹配的V型凸起面和滑动平面。本发明利用V型滑槽和平面滑槽相结合的方式，保证了滑座与滑轨的导向精度。

Vorrichtung zur führung eines mittels einer spindel angetriebenen schlittens

机床横梁丝杆辅助支撑装置

本发明公开了一种机床横梁丝杠辅助支撑装置，涉及机械制造技术领域；安装在机床横向滑板和横梁之间，机床横梁上设有固定支架，活动托架压接在固定支架上，活动托架上设有用于支撑丝杠的支撑块；固定支架设有水平的第一通孔，该第一通孔内依次设有弹簧、销轴和轴承，在该第一通孔靠近弹簧的一端设有封板；活动托架设有第二通孔，轴承设于固定支架的第一通孔和活动托架的第二通孔内，该第二通孔内设有顶销，第二通孔的一侧设有第三通孔，该第三通孔内装有轴和轴承，轴承与导向板抵接，在导向板上设有导向槽，轴承伸入导向板的导向槽内；本发明可以解决重型机床横梁丝杠支撑装置结构复杂，生产成本高，只能解决局部丝杠下垂的问题。

주축 이동형 선반의 이송축 지지장치

본 발명은 공작기계에서 이송축인 볼스크류의 하중을 지지하는 베어링에 관한 것으로, 특히 긴 이송영역을 갖는 X축 볼스크류의 하중을 지지하며 거동이 예측된 열팽창량 만큼을 보상하여 장시간 가공시에도 장비의 축이송 위치정밀도 및 반복 정밀도의 변화를 최소화하는 주축 이동형 선반의 이송축 지지장치에 관한 것이다. 이를 위해, 본 발명에 따른 주축 이동형 선반의 이송축 지지장치를 설명하면, 이송축의 일측에는 관통홀이 형성된 스러스트 앵귤러 볼베어링을 장착하고, 상기 스러스트 앵귤러 볼베어링은 볼트로 상기 관통홀을 관통해서 상기 지지부재에 체결하여 고정하며, 상기 스러스트 앵귤러 볼베어링의 내륜은 로크너트로 고정하고, 상기 이송축의 타측에는 이송축과 베어링 하우징 사이에 니들베어링을 장착하여 상기 이송축을 지지함으로써 이송축의 열팽창을 일측으로만 발생토록 구성한 것이 특징이다. 이송, 베어링, 볼스크류, 공작기계, 스냅링

Vorspanneinrichtung fuer axial vorgespannte lager.

间隙配合式丝杠预紧装置

本发明涉及机械领域，尤其涉及间隙配合式丝杠预紧装置，包括机床床体，机床床体的一端设有第一轴承座，机床床体的另一端滑动有滑动架，滑动架上滑动有第二轴承座，第一轴承座和第二轴承座上均设有轴承组合、压紧螺母和轴承压盖；滑动架上设有第一活塞腔，第一活塞腔内滑动有第一活塞，第一活塞上连有用于推动第二轴承座的第一活塞杆，第一活塞腔上设有插板，插板的两端分别位于第一活塞腔的内侧和外侧，第一活塞远离第一活塞杆的侧部与插板间歇相抵；第一活塞腔的外侧设有与第一活塞腔连通的气泵；滑动架上连接有测力计，气泵与第一活塞腔之间连接有气压计；第一活塞腔上连接有调温机构。本方案实现了对丝杠进行粗调和微调，提高了调整的精度。

间隙配合式丝杠预紧装置

本发明涉及机械领域，尤其涉及间隙配合式丝杠预紧装置，包括机床床体，机床床体的一端设有第一轴承座，机床床体的另一端滑动有滑动架，滑动架上滑动有第二轴承座，第一轴承座和第二轴承座上均设有轴承组合、压紧螺母和轴承压盖；滑动架上设有第一活塞腔，第一活塞腔内滑动有第一活塞，第一活塞上连有用于推动第二轴承座的第一活塞杆，第一活塞腔上设有插板，插板的两端分别位于第一活塞腔的内侧和外侧，第一活塞远离第一活塞杆的侧部与插板间歇相抵；第一活塞腔的外侧设有与第一活塞腔连通的气泵；滑动架上连接有测力计，气泵与第一活塞腔之间连接有气压计；第一活塞腔上连接有调温机构。本方案实现了对丝杠进行粗调和微调，提高了调整的精度。

床体丝杠后座微调装置

本发明的床体丝杠后座微调装置，包括底板，在底板的上面左端坐落有丝母，与丝母相配有顶丝，在底板的下面右端固定连接有垫块，在垫块的底面处配有调整垫，调整垫的下面与底板左端下面刚好与床体侧面凸台相吻合并保持底板的上平面与床体上方导轨的平面部相平行。本发明的床体丝杠后座微调装置，使用时将底板左端下面和右端下面的垫块置于床体侧面的凸台上，并在垫块下面设有调整垫，使底板上面与床体上面的导轨平面部相平行。手握丝母，转动顶丝，即可用顶丝顶靠后座，使后座沿床身侧面竖向移动，达到微量调整的目的，克服了移动量难控制、时多时少的弊端，提高了工作效率。

Tischantrieb für Werkzeugmaschine

Stützenanordnung für eine lange, fest eingespannte spindel

Lathe.

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卧式车床车滚珠丝杠防挠度变形装置

本发明涉及一种车床的防护装置。本发明的目的是提供一种卧式车床滚珠丝杠防挠度变形装置，该装置包括导向支撑架，所述的导向支撑架包括覆盖在床身导轨面上的水平板及水平板两端向下延伸的垂直夹板，床身导轨面被导轨支撑架两侧的垂直夹板夹持，在床身导轨面外侧的垂直夹板上固定向下延伸的丝杠支撑架，所述丝杠支撑架的底部设有半圆形丝杠支撑凹槽。采用该防挠变装置能有效保证数控重型卧车的机床精度，提高工件的加工质量，使产品可靠性及性价比更高。

一种丝杆传动安装结构

本发明涉及一种安装结构，尤其是一种丝杆传动安装结构，具体地说是用于立式车床中丝杆的传动安装结构。按照本发明提供的技术方案，所述丝杆传动安装结构，包括横梁；所述横梁的一端固定安装有支架，横梁内设有安装通孔；横梁上设有丝杆，所述丝杆具有第一丝杆端以及与所述第一丝杆端对应的第二丝杆端；丝杆的第一丝杆端安装于支架内，丝杆穿过横梁的安装通孔，且丝杆的第二丝杆端位于横梁另一端的外侧；丝杆能相对横梁及支架转动。本发明结构紧凑，提高丝杆安装刚性，安装使用方便，适应范围广，安全可靠。

一种丝杆传动安装结构

本发明涉及一种安装结构，尤其是一种丝杆传动安装结构，具体地说是用于立式车床中丝杆的传动安装结构。按照本发明提供的技术方案，所述丝杆传动安装结构包括横梁；所述横梁的一端固定安装有支架，横梁内设有安装通孔；横梁上设有丝杆，所述丝杆具有第一丝杆端以及与所述第一丝杆端对应的第二丝杆端；丝杆的第一丝杆端安装于支架内，丝杆穿过横梁的安装通孔，且丝杆的第二丝杆端位于横梁另一端的外侧；丝杆能相对横梁及支架转动。本发明结构紧凑，提高丝杆安装刚性，安装使用方便，适应范围广，安全可靠。