CN210588219U

CN210588219U - Clamp apparatus

Info

Publication number: CN210588219U
Application number: CN201921211494.2U
Authority: CN
Inventors: 侯向盼; 韩振军; 王忠平; 赵光伟; 薄敬涛; 许世涛; 高岩; 张戈
Original assignee: CRRC Qingdao Sifang Co Ltd
Current assignee: CRRC Qingdao Sifang Co Ltd
Priority date: 2019-07-29
Filing date: 2019-07-29
Publication date: 2020-05-22
Anticipated expiration: 2029-07-29

Abstract

The utility model provides a clamp, include: the base is provided with an accommodating cavity; the clamping part is at least partially arranged in the accommodating cavity, a limiting cavity is formed in the clamping part and used for limiting the workpiece, and the clamping part can rotate on the base to adjust the angle of the workpiece; the locking mechanism is movably arranged on the base and has a locking state and an opening state, under the condition that the locking mechanism is in the locking state, the clamping part is fixed on the base by the locking mechanism so as to prevent the clamping part from moving, and under the condition that the locking mechanism is in the opening state, the locking mechanism is separated from the clamping part so as to enable the clamping part to move on the base. Through the technical scheme provided by the utility model, can solve among the prior art to the inconvenient location of special-shaped workpiece and turned angle's problem.

Description

Clamp apparatus

Technical Field

The utility model relates to a fixed technical field of work piece particularly, relates to an anchor clamps.

Background

After the punch forming of the front window framework of the cab of the motor train unit, a double-side welding groove needs to be polished at the end part position. However, the workpiece is of a three-dimensional curved surface structure, the section of the sectional material is similar to a Z-shaped structure, the workpiece is difficult to position and clamp, and the workpiece needs to be turned over to polish different surfaces or to check whether the surface of the workpiece has scratches or not during polishing. The existing solution is to place the workpiece on a porous worktable, fix the workpiece by using a positioning pin, and turn over the workpiece to fix the workpiece again when the groove on the other side is polished. The mode has the problems of difficult positioning and clamping, and low production efficiency because the mode needs to be clamped again after being overturned. The same problem exists for similar shaped workpieces.

SUMMERY OF THE UTILITY MODEL

The utility model provides a fixture to solve among the prior art to the inconvenient location of special-shaped workpiece and turned angle's problem.

In order to solve the above problem, the utility model provides an anchor clamps, include: the base is provided with an accommodating cavity; the clamping part is at least partially arranged in the accommodating cavity, a limiting cavity is formed in the clamping part and used for limiting the workpiece, and the clamping part can rotate on the base to adjust the angle of the workpiece; the locking mechanism is movably arranged on the base and has a locking state and an opening state, under the condition that the locking mechanism is in the locking state, the clamping part is fixed on the base by the locking mechanism so as to prevent the clamping part from moving, and under the condition that the locking mechanism is in the opening state, the locking mechanism is separated from the clamping part so as to enable the clamping part to move on the base.

Further, the clamping portion includes: a first clamping member having a first clamping side; the second clamping piece is movably arranged on the first clamping piece and provided with a second clamping side, the accommodating cavity is formed between the first clamping side and the second clamping side, and the distance and/or the angle between the first clamping side and the second clamping side can be changed by the relative movement of the second clamping piece and the first clamping piece so as to clamp or release the workpiece.

Further, one end of the second clamping piece is rotatably arranged on the first clamping piece, the other end of the second clamping piece can be separated from or connected with the first clamping piece, and under the condition that the other end of the second clamping piece is connected with the first clamping piece, the first clamping side and the second clamping side clamp the workpiece.

Further, the clamping part still includes: one end of the second clamping piece is hinged with the first clamping piece through the rotating shaft; and the fastener is used for connecting the other end of the second clamping piece with the first clamping piece.

Further, spacing chamber is including the first chamber section, second chamber section and the third chamber section that communicate in proper order, wherein, has the contained angle between the extending direction of first chamber section and second chamber section, has the contained angle between the extending direction of second chamber section and the extending direction of third chamber section.

Further, the outer peripheral face of clamping part is the face of cylinder, and the internal surface that holds the chamber is the arcwall face, and the face of cylinder matches with the arcwall face.

Further, the base includes: the base body is provided with an arc-shaped groove, and the arc-shaped groove forms an accommodating cavity; the baffle is connected with the pedestal, and baffle protrusion in the border of arc recess to carry on spacingly to the clamping part.

Further, the locking mechanism includes: the bracket is arranged on the base; the locking part is movably arranged on the support, the distance between the locking part and the base is adjustable, so that the state of the locking part is changed, the clamping part is pressed on the base by the locking part under the condition that the locking part is in the locking state, and the locking part is separated from the clamping part under the condition that the locking part is in the opening state.

Further, the locking portion includes: the movable piece is arranged on the bracket in a height-adjustable manner; the pressing piece is arranged at the lower end of the moving piece, a pressing surface of the pressing piece is matched with the outer peripheral surface of the clamping portion, and the pressing piece is used for pressing the clamping portion.

Further, the moving part is the shaft-like structure, moving part and support threaded connection, and locking portion still includes: the handle is arranged at the upper end of the movable piece.

Use the technical scheme of the utility model, set up base, clamping part and locking mechanism in anchor clamps, can place spacing intracavity with the at least part of work piece like this in order to spacing to the work piece, because the clamping part can rotate on the base, consequently can drive the work piece and rotate the angle with the adjustment work piece, with the position adjustment of work piece after, use locking mechanism with the clamping part locking alright with the rigidity of work piece. Therefore, the clamp can conveniently position and angle the workpiece, and particularly for irregularly-shaped workpieces, the clamp can be quickly adjusted to a proper position and firmly fixed, so that the workpiece can be conveniently machined, and the production efficiency and safety are improved.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a perspective view of a clamp provided by an embodiment of the present invention;

fig. 2 shows a front view of the clamp of fig. 1.

Wherein the figures include the following reference numerals:

10. a base; 11. a base body; 12. a baffle plate; 20. a clamping portion; 21. a limiting cavity; 211. a first cavity section; 212. a second cavity section; 213. a third cavity section; 22. a first clamping member; 23. a second clamping member; 24. a rotating shaft; 30. a locking mechanism; 31. a support; 311. a vertical rod; 312. a cross bar; 32. a locking portion; 321. a movable member; 322. and a pressing member.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1-2, an embodiment of the present invention provides a clamp, including: a base 10, the base 10 having a receiving cavity; the clamping part 20, at least a part of the clamping part 20 is set in the accommodating cavity, the clamping part 20 is provided with a limiting cavity 21 therein, the limiting cavity 21 is used for limiting the workpiece, and the clamping part 20 can rotate on the base 10 to adjust the angle of the workpiece; and the locking mechanism 30 is movably arranged on the base 10, the locking mechanism 30 has a locking state and an opening state, when the locking mechanism 30 is in the locking state, the locking mechanism 30 fixes the clamping part 20 on the base 10 to prevent the clamping part 20 from moving, and when the locking mechanism 30 is in the opening state, the locking mechanism 30 is separated from the clamping part 20 to enable the clamping part 20 to move on the base 10.

Use the technical scheme of the utility model, set up base 10, clamping part 20 and locking mechanism 30 in anchor clamps, can place spacing intracavity 21 with at least some of work piece like this in order to spacing to the work piece, because clamping part 20 can rotate on base 10, consequently can drive the work piece and rotate the angle with the adjustment work piece, with the position adjustment of work piece after, use locking mechanism 30 with clamping part 20 locking alright with the rigidity of work piece. Therefore, the clamp can conveniently position and angle the workpiece, and particularly for irregularly-shaped workpieces, the clamp can be quickly adjusted to a proper position and firmly fixed, so that the workpiece can be conveniently machined, and the production efficiency and safety are improved.

This anchor clamps can be applied to the clamp and the position adjustment of EMUs cab front window skeleton, can press from both sides the front window skeleton reliably through this anchor clamps, thereby be convenient for polish the welding groove at the tip of front window skeleton, after polishing the welding groove in the one side, adjustment locking mechanism 30, make locking mechanism 30 be in the open mode, clamping part 20 is not hard up like this, can be rotatory at base 10, rotatory clamping part 20 drives the upset of front window skeleton, the upset is with locking mechanism 30 locking clamping part 20 again behind the suitable angle, thereby fix the front window skeleton, alright continue to polish. Use this anchor clamps can adjust suitable position and firmly fixed with the front window skeleton fast, be convenient for polish processing, improvement production efficiency and security to the front window skeleton.

In the present embodiment, the clamping portion 20 includes: a first clamp 22, the first clamp 22 having a first clamping side; and a second clamping member 23 movably disposed on the first clamping member 22, the second clamping member 23 having a second clamping side, a receiving cavity being formed between the first clamping side and the second clamping side, and relative movement of the second clamping member 23 and the first clamping member 22 being capable of changing a distance and/or an angle between the first clamping side and the second clamping side to clamp or unclamp a workpiece. Thus, the workpiece can be clamped or unclamped by the relative movement of the second clamping piece 23 and the first clamping piece 22, and the operation is convenient.

Specifically, one end of the second clamping member 23 is rotatably provided on the first clamping member 22, the other end of the second clamping member 23 can be separated from or connected to the first clamping member 22, and the first clamping side and the second clamping side clamp the workpiece in a state where the other end of the second clamping member 23 is connected to the first clamping member 22. With the above arrangement, the workpiece can be reliably clamped when the second clamping member 23 and the first clamping member 22 are relatively moved and the other end of the second clamping member 23 is connected to the first clamping member 22. In this embodiment, the limiting cavity 21 is located between one end and the other end of the second clamping member 23, and after the second clamping member 23 is connected to the first clamping member 22, the end surface of the other end of the second clamping member 23 abuts against the first clamping member 22.

In the present embodiment, the clamping portion 20 further includes: one end of the second clamping piece 23 is hinged with the first clamping piece 22 through the rotating shaft 24; and a fastener for connecting the other end of the second clamping member 23 with the first clamping member 22. The second clamping member 23 can be hinged to the first clamping member 22 by a rotating shaft 24. A secure connection of the second clamping part 23 to the first clamping part 22 can be achieved by means of a fastening element. In this embodiment, the fastener may be provided as a bolt, and corresponding holes or threads may be provided on the second clamp 23 and the first clamp 22.

In the present embodiment, the stopper chamber 21 matches the cross-sectional shape of the workpiece. This allows the workpiece to be reliably restrained by the side walls of the restraining chamber 21. Specifically, the limiting cavity 21 includes a first cavity section 211, a second cavity section 212, and a third cavity section 213 that are sequentially communicated, wherein an included angle is formed between the extending direction of the first cavity section 211 and the extending direction of the second cavity section 212, and an included angle is formed between the extending direction of the second cavity section 212 and the extending direction of the third cavity section 213. Through the arrangement, the limiting cavity 21 can reliably limit the front window framework of the motor train unit cab with the Z-shaped section.

In this embodiment, the outer peripheral surface of the clamping portion 20 is a cylindrical surface, the inner surface of the accommodating cavity is an arc-shaped surface, and the cylindrical surface is matched with the arc-shaped surface. Through the arrangement, the clamping part 20 can flexibly rotate in the accommodating cavity, so that the angle adjustment is facilitated. In the present embodiment, the rotation axis of the grip portion 20 may be horizontally disposed.

As shown in fig. 1, the base 10 includes: the base body 11 is provided with an arc-shaped groove, and the arc-shaped groove forms an accommodating cavity; baffle 12 is connected with pedestal 11, and baffle 12 protrusion is in the border of arc recess to carry on spacingly to clamping part 20. Clamping part 20 rotationally sets up in having the arc recess, can carry on spacingly to clamping part 20 through baffle 12, prevents that clamping part 20 from deviating from the arc recess. Specifically, two baffles 12 are respectively disposed on two sides of the seat body 11, and the clamping portion 20 is located between the two baffles 12.

In the present embodiment, the lock mechanism 30 includes: a bracket 31 provided on the base 10; the locking part 32 is movably arranged on the bracket 31, the distance between the locking part 32 and the base 10 can be adjusted to change the state of the locking part 32, when the locking part 32 is in a locking state, the locking part 32 presses the clamping part 20 on the base 10, and when the locking part 32 is in an opening state, the locking part 32 is separated from the clamping part 20. The clamping portion 20 can be pressed against the base 10 by the movement of the locking portion 32, thereby fixing the clamping portion 20 and the workpiece. Specifically, the support 31 includes a vertical rod 311 and a horizontal rod 312, the vertical rod 311 is connected to the base 10, the horizontal rod 312 is connected to the vertical rod 311, and the locking portion 32 is disposed on the horizontal rod 312.

As shown in fig. 1, the locking portion 32 includes: the movable piece 321 is arranged on the bracket 31 in a height-adjustable manner; the pressing piece 322 is arranged at the lower end of the movable piece 321, a pressing surface of the pressing piece 322 is matched with the outer peripheral surface of the clamping portion 20, and the pressing piece 322 is used for pressing the clamping portion 20. Thus, the height of the pressing member 322 can be adjusted by the movable member 321, so that the clamping portion 20 is pressed or the clamping portion 20 is avoided by the pressing member 322. In particular, the pressing piece 322 may be provided as an arc-shaped plate.

In this embodiment, the movable element 321 is a rod-shaped structure, the movable element 321 is connected to the bracket 31 by a screw, and the locking portion 32 further includes: and a handle arranged at the upper end of the movable piece 321. The movable member 321 is connected with the bracket 31 by screw threads, so that the height of the movable member 321 can be continuously adjusted, and the movable member 321 can be easily rotated by arranging a handle, so that the operation is convenient.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A clamp, comprising:

a base (10), the base (10) having a receiving cavity;

the clamping part (20), at least one part of the clamping part (20) is arranged in the accommodating cavity, a limiting cavity (21) is arranged in the clamping part (20), the limiting cavity (21) is used for limiting a workpiece, and the clamping part (20) can rotate on the base (10) to adjust the angle of the workpiece;

locking mechanism (30), movably set up on base (10), locking mechanism (30) have locking state and open mode, locking mechanism (30) are in under the condition of locking state, locking mechanism (30) will clamping part (20) are fixed in order to prevent on base (10) clamping part (20) remove, locking mechanism (30) are in under the condition of open mode, locking mechanism (30) with clamping part (20) separation is so that clamping part (20) can move on base (10).

2. The clamp according to claim 1, characterized in that said clamping portion (20) comprises:

a first clamp (22), the first clamp (22) having a first clamping side;

a second clamping member (23) movably arranged on the first clamping member (22), the second clamping member (23) having a second clamping side, the receiving cavity being formed between the first clamping side and the second clamping side, a relative movement of the second clamping member (23) and the first clamping member (22) being capable of changing a distance and/or an angle between the first clamping side and the second clamping side for clamping or unclamping the workpiece.

3. A clamp as claimed in claim 2, characterized in that one end of the second clamping member (23) is rotatably arranged on the first clamping member (22), the other end of the second clamping member (23) being capable of being separated from or connected to the first clamping member (22), the first clamping side and the second clamping side clamping the workpiece with the other end of the second clamping member (23) connected to the first clamping member (22).

4. The clamp according to claim 3, characterized in that the clamping portion (20) further comprises:

one end of the second clamping piece (23) is hinged with the first clamping piece (22) through the rotating shaft (24);

a fastener for connecting the other end of the second clamp (23) with the first clamp (22).

5. The clamp according to claim 1, characterized in that the limiting cavity (21) comprises a first cavity section (211), a second cavity section (212) and a third cavity section (213) which are communicated in sequence, wherein an included angle is formed between the extending direction of the first cavity section (211) and the extending direction of the second cavity section (212), and an included angle is formed between the extending direction of the second cavity section (212) and the extending direction of the third cavity section (213).

6. The clamp according to claim 1, characterized in that the outer peripheral surface of the clamping portion (20) is a cylindrical surface and the inner surface of the receiving cavity is an arc-shaped surface, the cylindrical surface matching the arc-shaped surface.

7. The clamp according to claim 1, characterized in that said base (10) comprises:

the seat body (11), the seat body (11) has an arc-shaped groove, and the arc-shaped groove forms the accommodating cavity;

the baffle (12) is connected with the base body (11), and the baffle (12) protrudes out of the edge of the arc-shaped groove so as to limit the clamping part (20).

8. The clamp according to claim 1, wherein the locking mechanism (30) comprises:

a bracket (31) provided on the base (10);

locking portion (32), movably set up on support (31), locking portion (32) with distance between base (10) is adjustable, in order to change the state of locking portion (32), locking portion (32) are in under the condition of locking state, locking portion (32) will clamping part (20) compress tightly on base (10), locking portion (32) are in under the condition of opening the state, locking portion (32) with clamping part (20) separation.

9. The clamp according to claim 8, characterized in that the locking portion (32) comprises:

a movable element (321), wherein the movable element (321) is arranged on the bracket (31) in a height-adjustable manner;

the pressing piece (322) is arranged at the lower end of the movable piece (321), a pressing surface of the pressing piece (322) is matched with the peripheral surface of the clamping portion (20), and the pressing piece (322) is used for pressing the clamping portion (20).

10. The clamp according to claim 9, characterized in that said mobile element (321) is a rod-like structure, said mobile element (321) being in threaded connection with said bracket (31), said locking portion (32) further comprising:

a handle disposed at an upper end of the movable member (321).