CN-224209480-U - Workpiece fixing device

CN224209480UCN 224209480 UCN224209480 UCN 224209480UCN-224209480-U

Abstract

The utility model relates to the technical field of auxiliary equipment for workpiece processing, and provides a workpiece fixing device, which comprises a first clamping seat, a second clamping seat and a positioning disc, wherein a first accommodating groove is formed in the first clamping seat; the second clamping seat is provided with a second accommodating groove which is spliced with the first accommodating groove and is used for accommodating a workpiece, the positioning disc is provided with a mounting hole penetrating through the thickness direction, the second clamping seat and the first clamping seat are locked and then are used for being inserted into the mounting hole, and the positioning disc is used for being clamped on a clamp of a lathe. Through the technical scheme, the external force applied to the workpiece during clamping is uniformly distributed, the machining precision of a finished product can be effectively improved, the generation probability of unqualified products is reduced, the rotating speed and the cutting feeding speed of the lathe can be increased to reasonable levels, the single-piece machining time is greatly shortened, the overall production efficiency is improved, and the production cost is reduced.

Inventors

LI HONGLIANG
JU PENG
WANG PENG
BAO XUECHUN
GUO QINGZHONG
XU GUIQIANG
ZHANG MENGLIN
LI ZHAO
WU ZHIYONG
Dai Huaran
QIN ZHIJUN

Assignees

石家庄盛华企业集团有限公司

Dates

Publication Date: 20260508
Application Date: 20250430

Claims (10)

1. A workpiece fixture, comprising: The clamping device comprises a first clamping seat (1), wherein a first accommodating groove (101) is formed in the first clamping seat (1); The second clamping seat (2) is provided with a second accommodating groove (201), and the second clamping seat (2) is spliced with the first accommodating groove (101) and then is used for accommodating a workpiece (7); The positioning disc (3), the mounting hole (301) penetrating through the thickness direction is formed in the positioning disc (3), the second clamping seat (2) and the first clamping seat (1) are locked and then are used for being inserted into the mounting hole (301), and the positioning disc (3) is used for being clamped on a fixture of a lathe.
2. The workpiece fixing device according to claim 1, wherein a guide groove (102) is formed in one side, away from the first accommodating groove (101), of the first clamping seat (1), the length direction of the guide groove (102) is parallel to the axial direction of the positioning disc (3), the workpiece fixing device further comprises a guide convex strip (4), the guide convex strip (4) is arranged in the mounting hole (301), and the guide convex strip (4) is spliced with the guide groove (102).
3. A workpiece fixing device according to claim 2, characterized in that a stop (5) is provided at one end of the positioning disc (3), and the stop (5) abuts against the first clamping seat (1) after the guiding protruding strip (4) is inserted into the guiding groove (102), so as to block the first clamping seat (1).
4. A workpiece fixture according to claim 3, characterized in that one end of the positioning plate (3) is provided with a countersink (302) communicating with the mounting hole (301), one end of the stop block (5) is arranged in the countersink (302), and the other end of the stop block (5) extends into the mounting hole (301) for blocking the first clamping seat (1).
5. The workpiece fixing device according to claim 4, wherein the first clamping seat (1) is provided with a clamping groove (103) at a position corresponding to the sinking groove (302), and the stop block (5) is clamped with the clamping groove (103).
6. A workpiece-holding device according to claim 3, characterized in that the stop (5) is detachably connected to the positioning plate (3).
7. A workpiece fixture according to claim 1, characterized in that one of the first clamping seat (1) and the second clamping seat (2) is provided with a positioning groove (202), the other is provided with a positioning protrusion (104) for being inserted into the positioning groove (202), and the positioning protrusion (104) and the positioning groove (202) are both positioned at the periphery of the workpiece (7).
8. A workpiece fixture according to claim 7, characterized in that the number of positioning projections (104) and the number of positioning slots (202) are equal and that there are at least two, and that there are positioning projections (104) on both sides of the axis of the positioning disk (3).
9. A workpiece fixing device according to claim 2, characterized in that the positioning disc (3) has a screw hole (303) on its circumferential surface, said screw hole (303) being located on a side of the second clamping seat (2) remote from the first clamping seat (1) and being in communication with the mounting hole (301), and further comprising a tightening bolt (6), said tightening bolt (6) being in threaded connection with said screw hole (303) and being in contact with the second clamping seat (2) for clamping the second clamping seat (2) between the first clamping seat (1) and the tightening bolt (6).
10. A workpiece fixture according to claim 9, characterized in that the screw holes (303) are arranged in the radial direction of the positioning disk (3) and are located in the centre of the second clamping seat (2).

Description

Workpiece fixing device Technical Field The utility model relates to the technical field of auxiliary equipment for workpiece machining, in particular to a workpiece fixing device. Background At present, in precision casting, some structures of castings need to be further processed on a lathe, when special-shaped precision casting workpieces such as tee joints are processed on the lathe, two claw clamps or bent plate clamps are usually manufactured to clamp and fix, and the special-shaped workpieces fixed by the two clamps are unevenly stressed and easily deform, so that the processing precision of finished products can be influenced, and even unqualified products are produced. And during processing, the processing can only be performed in a low-rotation-speed and low-feeding mode, so that the processing efficiency of products is greatly reduced. Therefore, there is a need for a workpiece fixture that can stably clamp a profile and enable a lathe to perform cutting at a reasonable speed. Disclosure of utility model In order to overcome the defects, the utility model provides a workpiece fixing device, which solves the technical problems of the prior art that the workpiece fixing device can stably clamp a special-shaped piece and enable a lathe to cut at a reasonable speed. According to one aspect, at least one embodiment of the present utility model provides a workpiece fixture, comprising: the first clamping seat is provided with a first accommodating groove; The second clamping seat is provided with a second accommodating groove which is spliced with the first accommodating groove and used for accommodating a workpiece; The locating plate is provided with a mounting hole penetrating through the thickness direction, the second clamping seat and the first clamping seat are locked and then are used for being inserted into the mounting hole, and the locating plate is used for being clamped on a clamp of a lathe. For example, in the workpiece fixing device provided by at least one embodiment of the present utility model, a guiding groove is formed on a side of the first clamping seat away from the first accommodating groove, a length direction of the guiding groove is parallel to an axial direction of the positioning disc, the workpiece fixing device further includes a guiding protruding strip, the guiding protruding strip is disposed in the mounting hole, and the guiding protruding strip is inserted into the guiding groove. For example, in the workpiece fixing device provided by at least one embodiment of the present utility model, a stop is disposed at one end of the positioning disc, and after the guiding protruding strip is inserted into the guiding groove, the stop abuts against the first clamping seat, so as to block the first clamping seat. For example, in one embodiment of the present utility model, one end of the positioning plate has a sink groove that communicates with the mounting hole, one end of the stopper is disposed in the sink groove, and the other end of the stopper extends into the mounting hole to block the first clamping seat. For example, in the workpiece fixing device provided by at least one embodiment of the present utility model, a clamping groove is formed at a position of the first clamping seat corresponding to the sinking groove, and the stop block is clamped with the clamping groove. For example, in a workpiece fixing device provided in at least one embodiment of the present utility model, the stopper is detachably connected to the positioning plate. For example, in one embodiment of the present utility model, one of the first clamping seat and the second clamping seat has a positioning groove, and the other one has a positioning protrusion for plugging with the positioning groove, where the positioning protrusion and the positioning groove are both located at the periphery of the workpiece. For example, in the workpiece fixing device provided in at least one embodiment of the present utility model, the number of the positioning protrusions and the number of the positioning slots are equal, and the number of the positioning protrusions is at least two, and the positioning protrusions are on both sides of the axis of the positioning disc. For example, in one embodiment of the present utility model, the positioning plate has a screw hole on a circumferential surface thereof, the screw hole is located at a side of the second clamping seat away from the first clamping seat and is in communication with the mounting hole, and the workpiece fixing device further includes a tightening bolt, and the tightening bolt is in threaded connection with the screw hole and is in contact with the second clamping seat, so as to clamp the second clamping seat between the first clamping seat and the tightening bolt. For example, in one embodiment of the present utility model, the screw hole is disposed along a radial direction of the positioning disc and is located at a center of the second clamping