CN214977845U

CN214977845U - High-precision machine tool chuck

Info

Publication number: CN214977845U
Application number: CN202120685026.XU
Authority: CN
Inventors: 仇军; 仇晶晶; 施福香; 孙国定; 孙正龙
Original assignee: Jiangsu Shentai Machine Tool Co ltd
Current assignee: Baoji Jiasheng Precision Machinery Manufacturing Co ltd
Priority date: 2021-04-02
Filing date: 2021-04-02
Publication date: 2021-12-03
Anticipated expiration: 2031-04-02

Abstract

The utility model provides a lathe chuck of high accuracy, including chuck base, three T type spout is evenly seted up to chuck base upper end, the inside equal sliding connection jack catch of three T type spout, the stopper is all installed to three jack catch upper end, three rack all meshes the ring gear, three ring gear is located the square inslot portion that corresponds respectively, the last lower extreme of three ring gear all with the laminating of the stopper inner wall that corresponds, the equal threaded connection bolt in three stopper upper end, three bolt downwards run through respectively corresponding ring gear and with the ring gear block, compare with prior art, the utility model discloses following beneficial effect has: the irregular workpiece can be clamped through the clamping plate, so that the irregular workpiece is conveniently machined, and the application range of the chuck is enlarged.

Description

High-precision machine tool chuck

Technical Field

The utility model relates to a lathe chuck of high accuracy belongs to numerical control processing technology field.

Background

The chuck is a mechanical device used for clamping workpieces on a machine tool, and is a machine tool accessory for clamping and positioning the workpieces by utilizing the radial movement of movable clamping jaws uniformly distributed on a chuck body, the chuck generally comprises the chuck body, the movable clamping jaws and a clamping jaw driving mechanism 3, the diameter of the chuck body is 65 mm at the minimum and can reach 1500 mm at the maximum, a through hole is formed in the center so as to pass through the workpieces or bars, the back of the chuck body is provided with a cylindrical or short conical structure and is directly or through a flange plate to be connected with the end part of a main shaft of the machine tool, and the chuck is usually arranged on a lathe, a cylindrical grinding machine and an inner grinding machine for use and can be matched with various indexing devices for use on a milling machine and a drilling machine.

Some machine tool chucks in the prior art can only fix and clamp a regular cylindrical workpiece, but when the machine tool chucks fix an oval or irregular workpiece, the chucks cannot stably clamp the workpiece, and the application range is not high.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a lathe chuck of high accuracy to when solving that to some oval or irregular work pieces of proposing in the above-mentioned background art and fix, its chuck can't carry out the stable problem of pressing from both sides tight to the work piece, the utility model discloses a clamp plate can press from both sides tightly irregular work piece, thereby is convenient for to the processing of irregular work piece, has improved the application range of this chuck.

In order to achieve the above purpose, the present invention is realized by the following technical solution: the utility model provides a lathe chuck of high accuracy, includes chuck base, chuck base upper end evenly sets up three T type spout, and is three the inside equal sliding connection jack catch of T type spout, it is three the stopper is all installed to the jack catch upper end, it is three the stopper all is located chuck base upside, it is three square logical groove, it is three inside the clamp plate of all laminating of square logical groove, it is three square groove, three all are seted up to the clamp plate upper end square groove inner wall all fixes the rack, it is three the rack all meshes the gear ring, and is three the gear ring is located the square inslot portion that corresponds respectively, and is three the lower extreme all laminates with the stopper inner wall that corresponds on the gear ring, and is three the equal threaded connection bolt in stopper upper end, it is three the bolt runs through corresponding gear ring respectively downwards and with the gear ring block.

Furthermore, two guide grooves are evenly formed in the annular outer end of the bolt, sliding blocks are connected inside the two guide grooves in a sliding mode, the outer ends of the sliding blocks are fixedly connected with a gear ring, and the gear ring is located on the outer side of the bolt.

Further, the jack catch upper end is rotated and is connected and rotate the frame, it is located the stopper outside to rotate the frame, it connects the threaded rod to rotate frame upper end threaded connection, threaded rod upper end fixed support board, backup pad and stopper fixed connection, the spout is seted up to the jack catch upper end, the inside sliding connection slide bar of spout, slide bar upper end and stopper fixed connection, the stopper is located the jack catch upside.

Furthermore, the rubber sleeve is sleeved at the annular outer end of the rotating frame, and anti-skid particles are fixed at the outer end of the rubber sleeve.

Further, one end, far away from the bolt, of the clamping plate is fixed with a rubber gasket.

Further, a handle is fixed to the upper end of the bolt and located on the upper side of the limiting block.

The utility model has the advantages that: the bolt is rotated to drive the gear ring to rotate, so that the rack is driven to move towards one end close to the workpiece, and then the clamping plate is driven to move towards one end close to the workpiece to be attached to the surface of the workpiece, and then the three bolts are rotated until the three clamping plates clamp the workpiece, so that the processing of irregular workpieces is facilitated, and the application range of the chuck is enlarged.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic structural view of a high-precision machine tool chuck according to the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a top view of a high precision machine tool chuck according to the present invention;

FIG. 4 is a top cross-sectional view of a high precision machine tool chuck according to the present invention;

in the figure: the clamping device comprises a chuck base 1, a 2-T-shaped sliding groove, a 3-supporting plate, a 4-clamping jaw, a 5-rotating frame, a 6-threaded rod, a 7-sliding groove, an 8-sliding rod, a 9-limiting block, a 10-bolt, a 11-rack, a 12-clamping plate, a 13-guide groove, a 14-gear ring, a 15-sliding block, a 16-square through groove and a 17-square groove.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Referring to fig. 1-4, the present invention provides a technical solution: a high-precision machine tool chuck comprises a chuck base 1, wherein three T-shaped sliding grooves 2 are uniformly formed in the upper end of the chuck base 1, clamping jaws 4 are connected with the insides of the three T-shaped sliding grooves 2 in a sliding manner, limiting blocks 9 are mounted at the upper ends of the three clamping jaws 4, the three limiting blocks 9 are all positioned on the upper side of the chuck base 1, square through grooves 16 are formed in the outer ends of the three limiting blocks 9, clamping plates 12 are attached to the insides of the three square through grooves 16, square grooves 17 are formed in the upper ends of the three clamping plates 12, fixing racks 11 are fixed on the inner walls of the three square grooves 17, the three racks 11 are all meshed with gear rings 14, the three gear rings 14 are respectively positioned inside the corresponding square grooves 17, the upper ends and the lower ends of the three gear rings 14 are all attached to the inner walls of the corresponding limiting blocks 9, bolts 10 are connected with the upper ends of the three limiting blocks 9 in a threaded manner, the three bolts 10 respectively penetrate through the corresponding gear rings 14 downwards and are clamped with the gear rings 14, and the bolts 10 are rotated, thereby driving the gear ring 14 to rotate, and thus driving the clamping plate 12 to move along the square through groove 16, thereby realizing clamping and fixing of irregular workpieces.

Two guide ways 13 are evenly seted up to 10 annular outer ends of bolt, the inside equal sliding connection slider 15 of two guide ways 13, and two 15 outer ends of slider all with gear ring 14 fixed connection, gear ring 14 are located the bolt 10 outside, slide from top to bottom along guide ways 13 through slider 15 to drive gear ring 14 and slide from top to bottom along bolt 10, can drive gear ring 14 through bolt 10 simultaneously and rotate.

4 upper ends of jack catch are rotated and are connected rotation frame 5, it is located the stopper 9 outside to rotate frame 5, it connects threaded rod 6 to rotate 5 upper end threaded connection threaded rod, threaded rod 6 upper end fixed support plate 3, backup pad 3 and stopper 9 fixed connection, spout 7 is seted up to 4 upper ends of jack catch, 7 inside sliding connection slide bars 8 of spout, 8 upper ends of slide bars and stopper 9 fixed connection, stopper 9 is located 4 upsides of jack catch, rotate frame 5 through the rotation, thereby drive threaded rod 6 along rotating frame 5 rebound, thereby drive backup pad 3 rebound, and then drive slide bar 8 and upwards remove along jack catch 4, the realization is to the regulation of clamp plate 12 height, further realize pressing from both sides tight fixedly to anomalous work piece.

The rubber sleeve is sleeved at the annular outer end of the rotating frame 5, and anti-skid particles are fixed at the outer end of the rubber sleeve, so that the rotating frame 5 is convenient to rotate.

The end of the clamping plate 12 remote from the bolt 10 holds a rubber gasket to prevent slippage between the workpiece and the clamping plate 12.

The handle is fixed to bolt 10 upper end, and the handle is located stopper 9 upside, conveniently rotates bolt 10.

The specific implementation mode is as follows: according to the shape of work piece, rotate the screw on the chuck base 1 earlier, thereby drive jack catch 4 and move to suitable position to the outside, then put into the work piece between three jack catch 4, according to the height of work piece this moment, rotatory rotation frame 5, thereby drive threaded rod 6 and rotate the upward movement along rotating frame 5, thereby drive backup pad 3 and upwards move, and then drive slide bar 8 and move along spout 7 and upwards, further drive stopper 9 and upwards move to suitable height after, again rotatory bolt 10, thereby drive ring gear 14 and rotate, thereby drive rack 11 and move to being close to work piece one end, and then when driving clamp plate 12 and moving to being close to work piece one end and laminating with the work piece surface, again rotatory three bolt 10, until three clamp plate 12 presss from both sides the work piece tightly, thereby be convenient for to the processing of irregular work piece, the application range of this chuck has been improved.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A high-precision machine tool chuck is characterized in that: the clamping device comprises a chuck base (1), wherein three T-shaped sliding grooves (2) are uniformly formed in the upper end of the chuck base (1), clamping jaws (4) are connected with the inside of the three T-shaped sliding grooves (2) in a sliding manner, limiting blocks (9) are mounted at the upper ends of the three clamping jaws (4), the three limiting blocks (9) are all positioned on the upper side of the chuck base (1), square through grooves (16) are formed in the outer ends of the three limiting blocks (9), clamping plates (12) are attached to the inside of the three square through grooves (16), square grooves (17) are formed in the upper ends of the three clamping plates (12), fixing racks (11) are fixed on the inner walls of the three square grooves (17), the three racks (11) are all meshed with gear rings (14), the three gear rings (14) are respectively positioned inside the corresponding square grooves (17), and the upper ends and the lower ends of the three gear rings (14) are all attached to the inner walls of the corresponding limiting blocks (9), the upper end of the limiting block (9) is connected with a bolt (10) in a threaded mode, and the bolt (10) penetrates through the corresponding gear ring (14) downwards and is clamped with the gear ring (14) downwards.

2. A high precision machine tool chuck according to claim 1, wherein: two guide grooves (13) are evenly formed in the annular outer end of the bolt (10), the inner portions of the guide grooves (13) are connected with sliding blocks (15) in a sliding mode, the outer ends of the sliding blocks (15) are fixedly connected with a gear ring (14), and the gear ring (14) is located on the outer side of the bolt (10).

3. A high precision machine tool chuck according to claim 1, wherein: jaw (4) upper end is rotated and is connected rotation frame (5), it is located the stopper (9) outside to rotate frame (5), rotate frame (5) upper end threaded connection threaded rod (6), threaded rod (6) upper end fixed support board (3), backup pad (3) and stopper (9) fixed connection, spout (7) are seted up to jaw (4) upper end, spout (7) inside sliding connection slide bar (8), slide bar (8) upper end and stopper (9) fixed connection, stopper (9) are located jaw (4) upside.

4. A high precision machine tool chuck according to claim 3, wherein: the rubber sleeve is sleeved at the annular outer end of the rotating frame (5), and anti-skid particles are fixed at the outer end of the rubber sleeve.

5. A high precision machine tool chuck according to claim 1, wherein: and a rubber gasket is fixed at one end of the clamping plate (12) far away from the bolt (10).

6. A high precision machine tool chuck according to claim 1, wherein: the handle is fixed on the upper end of the bolt (10) and is positioned on the upper side of the limiting block (9).