A special frock clamp for forking hole of yoke

Abstract

The utility model relates to fork joint production technical field, and disclose a kind of special frock clamps for fork joint punching, including fork part positioning block, at least two side V-shaped positioning slots are symmetrically arranged on the fork part positioning block, fork joint is placed in one side V-shaped positioning slot with its fork top in side vertical shape;The front end of the two side V-shaped positioning slots is equipped with clamping device, the clamping device is used to push the tail of fork joint, tail positioning block is further equipped between the clamping device and the side V-shaped positioning slot of corresponding position, and V-shaped positioning slot is equipped on the tail positioning block;In the utility model, by using the fork part positioning block and clamping device with side V-shaped positioning slot and tail positioning block with V-shaped positioning slot cooperation, the fork end of fork joint and the tail of single rod body are positioned and clamped, so that the two arm bodies of fork formed by frock punching equipment passing through the top of fork joint are punched once.

Description

Technical Field

[0001] This utility model relates to the field of fork-shaped joint production technology, specifically a special tooling fixture for drilling holes in fork-shaped joints. Background Technology

[0002] Currently, fork-shaped workpieces are often machined using CNC machine tools to make holes. During the hole-making process, fixing the Y-shaped fork section is quite difficult. Generally, a horizontal fixing method is used. After making a hole in one arm of the fork section, the fork section is flipped over, and then the other arm is made. Moreover, due to the shape and structure of the fork workpiece itself, the fork arm is easily affected by mechanical vibration during the hole-making process, resulting in a high defect rate in the punching operation. Therefore, this method does not meet the existing requirements. To address this, we propose a special tooling fixture for drilling fork sections. Utility Model Content

[0003] This utility model provides a special tooling fixture for drilling holes in fork-shaped sections, which has the advantages of not requiring the fork-shaped sections to be flipped, being able to drill holes in one go, and being applicable to different models of fork-shaped sections, thus solving the problems mentioned in the background art.

[0004] This utility model provides the following technical solution: a special tooling fixture for drilling fork-shaped sections, including a fork positioning block, wherein at least two side V-shaped positioning grooves are symmetrically arranged on the fork positioning block, and the fork-shaped section is in a side-standing position with its fork-shaped top placed in one of the side V-shaped positioning grooves; a clamping device is provided at the front end of the two side V-shaped positioning grooves, the clamping device is used to push the tail of the fork-shaped section, and a tail positioning block is also provided between the clamping device and the corresponding side V-shaped positioning groove, the tail positioning block being provided with an upright V-shaped positioning groove;

[0005] In this invention, a fork-shaped positioning block with a side V-shaped positioning groove and a clamping device are used in conjunction with a tail positioning block with a vertical V-shaped positioning groove to position and clamp the fork-shaped end of the fork-shaped section and the tail of the single rod body, so that the hole-making equipment can make holes in the two arms of the fork-shaped section in one go from directly above the fork-shaped section.

[0006] As an optional solution for a special tooling fixture for drilling fork-shaped sections according to the present utility model, the fork positioning block and the clamping device are both mounted on the tooling plate, the tooling plate is provided with a plurality of pre-installed screw holes, and a weight pad is provided between the tooling plate and the fork positioning block and the clamping device.

[0007] As an optional solution for a special tooling fixture for drilling fork-shaped sections according to the present utility model, wherein: the front end of the fork positioning block is provided with an end face positioning block corresponding to the bottom of the fork-shaped section, and the end face positioning block is provided with a working groove that is sunken by at least 5mm.

[0008] As an optional solution for a special tooling fixture for drilling fork-shaped sections according to the present invention, a clamping device is further provided between the fork positioning block and the clamping device, and the clamping device clamps and fixes the fork-shaped section on the tail positioning block and the end face positioning block.

[0009] As an optional solution for a special tooling fixture for drilling fork-shaped sections according to the present invention, the clamping device includes a fixed oil cylinder, the top of which is provided with a rotatable clamping arm, the clamping arm rotating and moving down to clamp the fork-shaped sections placed on both sides of the fixed oil cylinder.

[0010] As an optional solution for a special tooling fixture for drilling fork-shaped sections according to the present invention, the top of the fixed oil cylinder is also provided with a grooved positioning pad for the clamping arm to be inserted into as it moves down.

[0011] As an optional solution for a special tooling fixture for drilling fork-shaped sections according to the present utility model, the fork positioning block is provided with a number of positioning holes that penetrate its inner wall and extend to the side V-shaped positioning groove, and the positioning holes are provided with auxiliary support rods that support the fork arms in the air in the fork-shaped section.

[0012] As an optional solution for a special tooling fixture for drilling fork-shaped sections according to this utility model, the fork positioning block is provided with a pushing cylinder for pushing the auxiliary support rod out of the positioning hole, and the end face structure of the extended end of the auxiliary support rod is tapered.

[0013] As an optional solution for a special tooling fixture for drilling fork-shaped sections according to this utility model, the clamping device includes a docking column, and a driving cylinder is provided on one side of the docking column. The driving cylinder pushes the docking column to move toward the fork-shaped part.

[0014] As an optional solution for a special tooling fixture for drilling fork-shaped sections according to this utility model, the cross-section of the connecting post is not less than the tail section of the fork-shaped part, and the contact surface between the connecting post and the fork-shaped part is provided with anti-slip texture.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this special tooling fixture for drilling fork-shaped sections, a clamping device with a side V-shaped positioning groove and a tail positioning block with a vertical V-shaped positioning groove are used to clamp and fix the fork-shaped section. After fixing, the upper and lower positions of the fork arms of the fork-shaped section coincide, so when drilling holes, the drilling operation can be performed on both fork arms at one time.

[0017] 2. In this special tooling fixture for drilling fork-shaped sections, an auxiliary support rod is used to support the fork arm located in mid-air, thereby preventing the fork arm from bending under force when drilling holes in it.

[0018] 3. In this special tooling fixture for drilling fork-shaped sections, the bottom of the fork-shaped section is leveled by the end face positioning block, and the end face positioning block has a 5mm recessed working groove, thereby avoiding damage to the end face positioning block by the drilling equipment by setting a margin.

[0019] 4. The clamping arm clamps the fork-shaped sections on both sides of the fixed cylinder. The clamping arm, clamping device, and fork positioning block work together to fix the fork-shaped sections at three points, thereby ensuring that the fork-shaped sections will not shake during the hole-making operation, thus improving the accuracy of hole making and increasing the yield. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of a special tooling fixture for punching holes in a fork-shaped section according to the present invention;

[0021] Figure 2 This is an exploded view of a special tooling fixture for punching holes in a fork-shaped section according to this utility model;

[0022] Figure 3 This is a schematic diagram showing the extended support state of the auxiliary support rod of this utility model;

[0023] Figure 4 This is a three-dimensional structural diagram of the tail positioning block of this utility model;

[0024] Figure 5 This is a three-dimensional structural diagram of the tooling plate of this utility model;

[0025] Figure 6 This is a three-dimensional structural diagram of the fork positioning block of this utility model.

[0026] In the diagram: 1. Fork positioning block; 10. Side V-shaped positioning groove; 11. End face positioning block; 12. Positioning hole; 110. Working groove; 120. Auxiliary support rod; 121. Pushing cylinder; 2. Tail positioning block; 20. Vertical V-shaped positioning groove; 3. Clamping device; 30. Drive cylinder; 31. Connecting column; 310. Anti-slip texture; 4. Pressing device; 40. Fixing cylinder; 41. Pressing arm; 42. Grooved positioning pad; 5. Tooling plate. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1: This example aims to solve the problem of needing to flip the fork-shaped section during hole drilling by using a side-mounted fixing clamp for the fork-shaped section. Please refer to [link to example]. Figure 1 , Figure 2 , Figure 3 and Figure 4 A special tooling fixture for drilling fork-shaped joints includes a fork positioning block 1. The fork positioning block 1 has at least two symmetrically arranged side V-shaped positioning grooves 10. The fork-shaped joint is positioned sideways, with its fork-shaped top placed within one of the side V-shaped positioning grooves 10. The fork-shaped top of the fork-shaped joint is restricted by the side V-shaped positioning groove 10 on the fork positioning block 1, so that when its tail is subjected to force, it will move towards the center of the side V-shaped positioning groove 10, thereby ensuring that the vertical positions of the fork-shaped arms of the fork-shaped joint coincide, facilitating one-time hole drilling. Clamping devices 3 are provided at the front ends of the two side V-shaped positioning grooves 10. A clamping device 4 is also provided between the fork positioning block 1 and the clamping device 3. The clamping device 3 is used to push the tail of the fork section. A tail positioning block 2 is also provided between the clamping device 3 and the corresponding side V-shaped positioning groove 10. The tail positioning block 2 is provided with a vertical V-shaped positioning groove 20. The clamping device 3 pushes the tail of the fork section to fix the fork section between the fork positioning block 1 and the clamping device 3. Moreover, the tail positioning block 2 with a vertical V-shaped positioning groove 20 is provided at the tail of the fork section near the pushing end of the clamping device 3, which can clamp and position the tail of the fork section.

[0029] The clamping device 3 includes a docking post 31, and a driving cylinder 30 is provided on one side of the docking post 31. The driving cylinder 30 pushes the docking post 31 to move toward the fork-shaped part. The cross-section of the docking post 31 is not smaller than the tail section of the fork-shaped part. Anti-slip texture 310 is provided on the contact surface between the docking post 31 and the fork-shaped part.

[0030] The clamping device 4 clamps and fixes the fork-shaped section onto the tail positioning block 2 and the end face positioning block 11. The clamping device 4 includes a fixing cylinder 40. The top of the fixing cylinder 40 is provided with a rotatable clamping arm 41. The clamping arm 41 rotates and moves down to clamp the fork-shaped section placed on both sides of the fixing cylinder 40. The top of the fixing cylinder 40 is also provided with a grooved positioning pad 42 for the clamping arm 41 to move down and embed. Since the outer wall of the fork-shaped section is uneven, the grooved positioning pad 42 can prevent the clamping arm 41 from sliding when it is clamped onto the fork-shaped section, thereby ensuring the clamping effect.

[0031] In this embodiment, the fork-shaped section is clamped and fixed by the fork-shaped positioning block 1 and the clamping device 3. When fixed, the fork-shaped top of the fork-shaped section is restricted by the V-shaped positioning groove 10 on the upper side of the fork-shaped positioning block 1. Therefore, after the tail is subjected to force, it will move towards the center of the side V-shaped positioning groove 10. When the clamping arm 41 moves down to clamp, the fork-shaped section slides down under force. At this time, the tail positioning block 2 with the vertical V-shaped positioning groove 20 can adjust the tail posture of the fork-shaped section, thereby ensuring that the side posture of the fork-shaped section remains vertical, so as to facilitate the hole making operation and improve the hole making accuracy.

[0032] Example 2 aims to address the problem of preventing vibration and tilting of the suspended portion of a side-standing fork-shaped joint. This example is an improvement upon Example 1. For details, please refer to [link to example]. Figure 2 and Figure 3 The fork-shaped positioning block 1 has several positioning holes 12 that penetrate its inner wall and extend to the side V-shaped positioning groove 10. The positioning holes 12 are provided with auxiliary support rods 120 that support the fork arm in the air in the fork-shaped section. The fork-shaped positioning block 1 is provided with a push cylinder 121 for pushing the auxiliary support rod 120 out of the positioning holes 12. The push cylinder 121 can push the auxiliary support rod 120 out of the positioning holes 12 and move it to directly below the fork arm in the air in the fork-shaped section for support. The end face structure of the extended end of the auxiliary support rod 120 is tapered. The front end of the fork-shaped positioning block 1 is provided with an end face positioning block 11 at the bottom of the fork-shaped section. The end face positioning block 11 is provided with a working groove 110 that is sunken by at least 5 mm. The end face positioning block 11 with the working groove 110 that is sunken by at least 5 mm can support the fork-shaped part of the fork on the ground or on the operating table to facilitate one-time hole making operation.

[0033] In this embodiment, the auxiliary support rod 120 extends to the fork arm in the fork joint, thereby supporting its bottom, avoiding bending deformation during the drilling process and reducing the impact of vibration. Moreover, the auxiliary support rod 120 can be installed at different heights to suit different models of fork joints.

[0034] Example 3 aims to further improve the ease of use of the fixture. This example is an improvement upon Example 1. For details, please refer to [link / reference]. Figure 5 and Figure 6 The fork positioning block 1 and the clamping device 3 are both mounted on the tooling plate 5. The tooling plate 5 has several pre-installed screw holes, and a weight pad is provided between the tooling plate 5 and the fork positioning block 1 and the clamping device 3.

[0035] In this embodiment: the weight pad can be used to raise the fork positioning block 1, the tail positioning block 2, the clamping device 3, the pressing device 4, and the end face positioning block 11. By adjusting the installation height of the fork positioning block 1, the tail positioning block 2, the clamping device 3, the pressing device 4, and the end face positioning block 11, and by adjusting the pre-installed screw holes at different positions on the tooling plate 5, the spacing between the fork positioning block 1, the tail positioning block 2, the clamping device 3, the pressing device 4, and the end face positioning block 11 can be adjusted. This allows it to be widely applicable to different models of fork joints, and it can also be assembled into a multi-row installation method to fix the fixture.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A special tooling fixture for punching of yoke, comprising a yoke positioning block (1), characterized in that: The fork-shaped positioning block (1) is provided with at least two side V-shaped positioning grooves (10) in a symmetrical manner, and the fork-shaped section is in a side-standing position with its fork-shaped top placed in one of the side V-shaped positioning grooves (10); The two side V-shaped positioning grooves (10) are provided with a clamping device (3) at their front ends. The clamping device (3) is used to push the tail of the fork section. The clamping device (3) and the corresponding side V-shaped positioning groove (10) are also provided with a tail positioning block (2). The tail positioning block (2) is provided with a vertical V-shaped positioning groove (20). The fork positioning block (1) has an end face positioning block (11) at the front end corresponding to the bottom of the fork section. A pressing device (4) is also provided between the fork positioning block (1) and the clamping device (3). The pressing device (4) presses and fixes the fork section onto the tail positioning block (2) and the end face positioning block (11). The clamping device (4) includes a fixed cylinder (40), and the top of the fixed cylinder (40) is provided with a rotatable clamping arm (41). The clamping arm (41) rotates and moves down to clamp the fork-shaped sections placed on both sides of the fixed cylinder (40).

2. The special fixture clamp for punching the forked joint according to claim 1, characterized in that: The fork positioning block (1) and the clamping device (3) are both mounted on the tooling plate (5). The tooling plate (5) has several pre-installed screw holes. A weight pad is provided between the tooling plate (5) and the fork positioning block (1) and the clamping device (3).

3. The special fixture clamp for punching the forked joint according to claim 1, characterized in that: The end face positioning block (11) is provided with a working groove (110) that is sunken by at least 5mm.

4. The special fixture clamp for punching the forked joint according to claim 1, characterized in that: The top of the fixed cylinder (40) is also provided with a grooved positioning pad (42) for the clamping arm (41) to be inserted into as it moves down.

5. The special fixture clamp for punching the forked joint according to claim 1, characterized in that: The fork positioning block (1) is provided with a number of positioning holes (12) that penetrate its inner wall and extend to the side V-shaped positioning groove (10). The positioning holes (12) are provided with auxiliary support rods (120) for the fork arms in the air in the fork-shaped section.

6. The special fixture clamp for punching the forked joint according to claim 5, characterized in that: The fork positioning block (1) is provided with a push cylinder (121) for pushing the auxiliary support rod (120) out of the positioning hole (12), and the end face structure of the extended end of the auxiliary support rod (120) is tapered.

7. The special fixture clamp for punching the forked joint according to claim 1, characterized in that: The clamping device (3) includes a docking post (31), and a driving cylinder (30) is provided on one side of the docking post (31). The driving cylinder (30) pushes the docking post (31) to move toward the fork-shaped piece.

8. The special fixture clamp for punching the forked joint according to claim 7, characterized in that: The cross-section of the docking post (31) is not less than the tail section of the fork-shaped part, and the contact surface between the docking post (31) and the fork-shaped part is provided with anti-slip texture (310).

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