CN221111422U

CN221111422U - Clamping tool

Info

Publication number: CN221111422U
Application number: CN202322562710.0U
Authority: CN
Inventors: 杨野; 崔克强; 刘欢
Original assignee: Tianjin Zhengtian Medical Instrument Co Ltd; Beijing Naton Medical Technology Holdings Co Ltd
Current assignee: Tianjin Zhengtian Medical Instrument Co Ltd; Beijing Naton Medical Technology Holdings Co Ltd
Priority date: 2023-09-21
Filing date: 2023-09-21
Publication date: 2024-06-11
Anticipated expiration: 2033-09-21

Abstract

The utility model discloses a clamping tool, which is used for clamping a workpiece to be machined, wherein the workpiece to be machined at least partially protrudes out of the clamping tool, the workpiece to be machined comprises an protruding portion protruding out of the clamping tool and a clamped main body portion, and the clamping tool comprises: a clamping body for clamping a body portion of a workpiece to be machined; the positioning block can be detachably connected with the clamping main body; the anti-tilting block is detachably connected with the positioning block, a notch is formed in the front end of the anti-tilting block and comprises an inclined upper surface and is used for being abutted with the tail end of the main body part to prevent the tail end of the main body part from tilting. The utility model provides a clamping tool, wherein the tail end of a workpiece to be machined can be effectively fixed through the structural design of an anti-warping block, a positioning block which is detachably connected with the clamping tool ensures that the clamping tool is applicable to workpieces to be machined of different models, the clamping tool is connected with a pneumatic device, and the simultaneous machining of multiple products of different models is realized.

Description

Clamping tool

Technical Field

The utility model relates to the technical field of machining, in particular to a clamping tool.

Background

Bone plates are often used in fracture surgery at present, most of the existing bone plates are metal bone plates, the existing bone plates are designed according to the shape of human bones and the bionic design, and the purpose of the bone plates is to reduce damage of product stress caused by bending, compression and rotation of the bones as much as possible. Meanwhile, the shape, thickness, screw hole spacing and aperture of the predetermined bone fracture plate are different according to different parts used by the product. The most common materials used are medical stainless steel and titanium alloy materials. The existing multi-station pneumatic tool for the bone plate product design is more, but the existing clamping tool cannot be fixed for the bone plate product with the side clamps and the head exposed outside the tool, and meanwhile the multi-station product cannot be simultaneously righted.

Therefore, a clamping tool that can be detachably connected with a pneumatic tool and can effectively fix the end of a bone plate becomes a key to solve the problem.

Disclosure of utility model

The utility model aims to provide a clamping tool which can be detachably connected with a pneumatic tool and can effectively fix the tail end of a bone plate.

In order to achieve the above purpose, the present utility model adopts the following technical scheme that: a wait the machined part for the centre gripping includes that at least part stretches out the centre gripping frock outside, wait the machined part to include by the main part of centre gripping and stretch out the portion of stretching out of centre gripping frock, this centre gripping frock includes:

A clamping body for clamping the body portion of the workpiece to be machined;

the positioning block can be detachably connected with the clamping main body;

The anti-tilting block is detachably connected with the positioning block, a notch is formed in the front end of the anti-tilting block, and the notch comprises an inclined upper surface and is used for being abutted to the tail end of the main body to prevent the tail end of the main body from tilting.

Preferably, the anti-warp block comprises a stem and a head, the radial maximum dimension of the head being greater than the radial dimension of the stem.

Preferably, the anti-tilting device further comprises an elastic piece, wherein the elastic piece is sleeved on the rod part of the anti-tilting block, and two ends of the elastic piece are respectively abutted with the positioning block and the head part of the anti-tilting block.

Preferably, the method further comprises:

The mounting hole is vertically and penetratingly arranged on the positioning block and used for fixing the positioning block on the clamping main body through the mounting bolt.

Preferably, the method further comprises:

The through hole is horizontally and transversely arranged on the positioning block and used for the rod part of the anti-tilting block to extend in;

The threaded hole is axially formed in the rod part of the anti-warping block;

The bolt is horizontally and transversely inserted into the through hole relative to the anti-tilting block, and an external thread matched with the threaded hole is arranged at the screw rod of the bolt and used for detachably connecting the anti-tilting block with the positioning block.

Preferably, the through hole is a counter bore.

Preferably, the elastic member is a spring.

Preferably, the mounting hole is a countersunk bolt hole.

Preferably, the clamping main body is provided with a fixing seat, and a plurality of mounting grooves for mounting the positioning blocks are formed in the fixing seat at intervals along the length direction of the main body part of the workpiece to be machined.

Preferably, the clamping body is provided with a plurality of sliding clamping blocks, and the sliding clamping blocks simultaneously control movement to clamp and release through the driving structure.

The beneficial effects of the utility model are as follows: the structural design of the anti-warping block in the clamping tool can effectively fix the tail end of a workpiece to be machined, the positioning block which is detachably connected with the clamping tool ensures that the clamping tool is applicable to workpieces to be machined of different types, and the clamping tool is connected with the pneumatic tool, so that simultaneous machining of multiple products of different types is realized, the operation is convenient, and the machining efficiency is high.

Drawings

Fig. 1 is a schematic diagram of a clamping tool according to the present utility model.

Fig. 2 is a schematic view of the assembled positioning block and the anti-tilting block in the present utility model.

Fig. 3 is a cross-sectional view A-A of fig. 2.

Fig. 4 is a perspective view of the assembled positioning block and the anti-tilting block in the present utility model.

Fig. 5 is a schematic working diagram of the assembled positioning block and the anti-tilting block in the present utility model.

In the figure, 1, a clamping tool;

11. A clamping body; 111. a fixing seat; 1111. a mounting groove; 112. sliding clamping blocks;

12. A positioning block; 121. a mounting hole; 122. installing a bolt; 123. through hole

13. An anti-warp block; 131. a head; 1311. a notch; 132. a stem portion; 1321. a threaded hole;

14. an elastic member;

15. A bolt;

2. a workpiece to be machined;

21. A main body portion;

22. And a protruding portion.

Detailed Description

The utility model is described in further detail below with reference to the drawings to enable those skilled in the art to practice the same and to refer to the description.

It will be understood that terms, such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or other elements or groups thereof.

As shown in fig. 1 to 5, the present embodiment provides a clamping tool 1 for clamping a workpiece 2 including a part protruding out of the clamping tool 1, wherein the workpiece 2 includes a main body portion 21 to be clamped and a protruding portion 22 protruding out of the clamping tool 1, and the clamping tool 1 includes: clamping body 11, locating piece 12 and anti-stick up piece 13. The clamping body 11 is used for clamping a body portion 21 of the workpiece 2. The positioning block 12 is detachably connected with the clamping main body 11. The anti-tilting block 13 is detachably connected with the positioning block 12, a notch 1311 is arranged at the front end of the anti-tilting block 13, and the notch 1311 comprises an inclined upper surface and is used for being abutted with the tail end of the main body 21 so as to prevent the tail end of the main body 21 of the workpiece 2 to be processed from tilting. The structural design of the clamping tool 1 solves the problem that bone plate products outside the clamping tool are difficult to fix and right due to the fact that the side clamps and the head parts are exposed.

In this embodiment, the anti-warp block 13 includes a head 131 and a stem 132, and the radial maximum dimension of the head 131 is greater than the radial dimension of the stem 132.

Notch 1311 is located in the lower portion of head 131 and includes a vertical surface and an inclined surface at an obtuse angle to accommodate the end configuration of body 21. Wherein the vertical surface is attached to the end face of the end of the main body 21, and the inclined surface is attached to the upper surface of the end of the main body 21, so as to prevent the end of the main body 21 from tilting due to the exposure of the protruding portion 22 to the clamping tool 1.

In this embodiment, the clamping tool 1 further includes an elastic member 14, the elastic member 14 is sleeved on the rod portion 132 of the anti-tilting block 13, and two ends of the elastic member 14 are respectively abutted against the positioning block 12 and the head portion 131 of the anti-tilting block 13.

Specifically, the elastic member 14 is a spring, and the spring force provides a force in a horizontal direction to the anti-tilting block 13, because the inclined surface of the anti-tilting block 13 contacts with the upper surface of the end of the main body 21, the anti-tilting block 13 applies a downward force to the end of the main body 21, so as to prevent the end of the main body 21 from tilting.

Referring to fig. 1 and 2, a mounting hole 121 is vertically and penetratingly formed in the positioning block 12, and the mounting hole 121 is a countersunk bolt hole. Correspondingly, the fixing base 111 is provided on the clamping body 11, and the fixing base 111 is provided with mounting grooves 1111 for mounting the positioning blocks 12 at intervals along the length direction of the main body 21 of the workpiece 2, and the positioning blocks 12 can be fixedly connected to the clamping body 11 by screwing the mounting bolts 122 into the mounting holes 121 and the mounting grooves 1111 in sequence. Specifically, the number of the installation grooves 1111 is set to be multiple, and according to the specifications of the workpiece to be processed 2, the positioning block 12 is installed in the installation groove 1111 at a proper position, so that accurate positioning of products with different specifications can be realized.

Referring to fig. 3, in the present embodiment, the positioning block 12 is horizontally and laterally provided with a through hole 123. The through hole 123 is used for the stem 132 of the anti-tilting block 13 to extend in. A screw hole 1321 is provided in the axial direction in the stem 132 of the anti-warp block 13.

The present embodiment further includes a bolt 15. The bolt 15 is horizontally and transversely inserted into the through hole 123 relative to the anti-tilting block 13, and an external thread matched with the threaded hole 1321 is arranged at the screw rod of the bolt 15, and the bolt 15 is in threaded connection with the anti-tilting block 13 and used for detachably connecting the anti-tilting block 13 with the positioning block 12. Meanwhile, by adjusting the depth of screwing the screw 15 into the screw hole 1321, the elastic force and the stroke of the elastic member 14 can be controlled, thereby controlling the force applied by the anti-warp block 13 to the end of the main body 21.

In the present embodiment, the through hole 123 is a countersunk hole and is a two-stage countersunk hole, the bolt 15 and the rod 132 of the anti-tilting block 13 are allowed to be inserted, and the through hole 123 is configured such that the anti-tilting block 13 and the bolt 15 can move in an adjustable manner in the through hole 123 of the positioning block 12.

In this embodiment, the clamping body 11 is provided with a plurality of sliding clamping blocks 112, and when in use, the workpiece 2 to be machined is placed between the sliding clamping blocks 112 and the fixing seat 111, and the sliding clamping blocks 112 can be controlled to move simultaneously through the driving structure to clamp and release the workpiece 2 to be machined. The driving structure comprises an air cylinder and an OK clamp, the air cylinder can drive the OK clamp to move, and the OK clamp pushes the sliding clamping block 112 to move, so that the effect of clamping or loosening the workpiece 2 to be machined is achieved.

In the use process, the elastic piece 14 is sleeved on the rod 132 of the anti-warping block 13, then the bolt 15 and the rod 132 of the anti-warping block 13 are respectively inserted into two ends of the through hole 123 in the positioning block 12, then the bolt 15 is inserted into the threaded hole 1321 of the anti-warping block 13 and screwed, and the positioning block 12 and the anti-warping block 13 are assembled together; according to the length of the main body part 21 of the workpiece 2, a mounting groove 1111 at a proper position is selected, and the positioning block 12 is mounted on the clamping main body 11 through the cooperation of the mounting bolt 122, the mounting hole 121 and the mounting groove 1111; the workpiece 2 is placed between the fixed seat 111 and the slide clamp block 112, and the notch 1311 is abutted against the end of the main body portion 21 of the workpiece 2. Starting the air cylinder, enabling the sliding clamping blocks 112 to move simultaneously, clamping the workpiece 2 to be machined, and fixing the workpiece 2 to be machined; after the machining is completed, the cylinder is restarted, the sliding clamping block 112 moves reversely, the workpiece 2 to be machined is loosened, and the machined workpiece is taken out. If the workpieces 2 of different types are to be processed, the mounting bolts 122 are screwed, and the positioning blocks 12 and the anti-warping blocks 13 are mounted in the mounting grooves 1111 at appropriate positions.

In summary, according to the clamping tool disclosed by the utility model, the tail end of a workpiece to be machined can be effectively fixed through the structural design of the anti-tilting block 13, the positioning block 12 which is detachably connected ensures that the clamping tool is applicable to workpieces to be machined of different types, and the clamping tool is connected with a pneumatic device, so that simultaneous machining of multiple products of different types is realized, the operation is convenient, and the machining efficiency is high.

Although embodiments of the present utility model have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the utility model would be readily apparent to those skilled in the art, and accordingly, the utility model is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.

Claims

1. The utility model provides a centre gripping frock, its characterized in that is used for the centre gripping to include waiting machined part (2) that at least part stretches out centre gripping frock (1) outside, waiting machined part (2) include by main part (21) of centre gripping and stretch out portion (22) of stretching out centre gripping frock (1), and this centre gripping frock (1) include:

a clamping body (11) for clamping the body portion (21) of the workpiece (2);

A positioning block (12) which can be detachably connected with the clamping main body (11);

The anti-tilting block (13) is detachably connected with the positioning block (12), a notch (1311) is formed in the front end of the anti-tilting block (13), and the notch (1311) comprises an inclined upper surface and is used for abutting against the tail end of the main body part (21) to prevent the tail end of the main body part (21) from tilting.

2. Clamping fixture according to claim 1, wherein the anti-warp block (13) comprises a head (131) and a stem (132), the radial maximum dimension of the head (131) being greater than the radial dimension of the stem (132).

3. The clamping tool of claim 2, further comprising:

The elastic piece (14), the elastic piece (14) is sleeved on the rod part (132) of the anti-tilting block (13), and two ends of the elastic piece (14) are respectively abutted to the positioning block (12) and the head part (131) of the anti-tilting block (13).

4. The clamping tool according to claim 1 or 2, further comprising:

And the mounting hole (121) is vertically and penetratingly arranged on the positioning block (12) and is used for fixing the positioning block (12) on the clamping main body (11) through a mounting bolt (122).

5. The clamping tool of claim 2, further comprising:

A through hole (123) horizontally and transversely arranged on the positioning block (12) and used for the rod part (132) of the anti-tilting block (13) to extend in;

a screw hole (1321) axially provided in the stem (132) of the anti-warp block (13);

The bolt (15) is horizontally and transversely inserted into the through hole (123) relative to the anti-tilting block (13), and an external thread matched with the threaded hole (1321) is arranged at the screw rod of the bolt (15) and used for detachably connecting the anti-tilting block (13) with the positioning block (12).

6. The clamping tool according to claim 5, wherein: the through hole (123) is a countersunk hole.

7. A clamping fixture according to claim 3, wherein: the elastic piece (14) is a spring.

8. The clamping tool according to claim 4, wherein: the mounting holes (121) are countersunk bolt holes.

9. The clamping tool according to claim 1, wherein a fixing seat (111) is arranged on the clamping main body (11), and a plurality of mounting grooves (1111) for mounting the positioning blocks (12) are arranged on the fixing seat (111) at intervals along the length direction of the main body part (21) of the workpiece (2).

10. Clamping fixture according to claim 1, characterized in that the clamping body (11) is provided with a plurality of sliding clamping blocks (112), and that the sliding clamping blocks (112) are clamped and released by means of a driving structure while controlling the movement.