Clamp tool for honing parking pawl and using method

Abstract

The invention discloses a clamp tool for honing a parking pawl and a using method, and belongs to the technical field of honing equipment machining, the clamp tool comprises a base, a profiling plate is arranged on the base, a connecting plate is arranged at the top of the profiling plate, a mounting plate is arranged on the connecting plate, honing machining holes are formed in the mounting plate, and a fixing structure is arranged between the mounting plate and the profiling plate; a through hole is formed in the fixing structure; a groove structure matched with the outer contour of the parking pawl is arranged in the middle of the profiling plate, and after the parking pawl is arranged in the groove structure, a punched hole, needing to be machined, of the parking pawl is vertically aligned with the through hole in the fixing structure and the honing machining hole in the mounting plate. According to the structure of the parking pawl, the profiling plate matched with the molded surface and the outline of the pawl is arranged to clamp the outline surface of the pawl, and meanwhile, the mistake-proof structure is arranged to abut against a curved-surface concave structure arranged on the parking pawl, so that the parking pawl is kept stable and immovable in the whole honing machining process of the parking pawl; and the punching and honing precision of the parking pawl is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of honing equipment processing, and in particular to a fixture tooling for honing a parking pawl and a use method thereof. Background Art

[0002] The parking pawl is a key component in the parking mechanism of the automatic transmission. Its main function is to fix the vehicle through mechanical engagement to prevent the whole vehicle from sliding. The existing parking pawl is generally provided with a punching hole, and the inner wall of the punching hole needs to be honed to ensure the matching accuracy between the parking pawl and other structures of the braking system, thereby ensuring stable braking of the vehicle.

[0003] At present, the parking pawl is a part with a special shape, such as Figure 3 As shown, its shape is irregular, with many curved surfaces and bosses on the surface, and many parts need to be processed. At present, when processing the parking pawl, due to the differences in the pawl profile and contour, the traditional clamping tools cannot achieve stable clamping processing for the pawl, especially during the punching and honing process, the pawl needs to remain stable, otherwise even a small movement will affect the honing accuracy of the inner wall of the punching hole, further affecting the use of the parking pawl, and there are great safety hazards when used on the vehicle.

[0004] In the prior art, the Chinese patent with publication number CN109968061A discloses a special positioning and locking device for pawl processing, which can only improve the processing accuracy of the step surface at the rear of the pawl, but cannot realize the punching and honing clamping of the parking pawl. The current setting of the punching and honing fixture for the parking pawl is often to set a specific clamping tool according to the structure of the specific pawl. This method is very time-consuming and labor-intensive, and also increases the processing cost. It can be seen that how to design and provide a fixture tool specifically for the punching and honing of the parking pawl is one of the problems that need to be solved urgently. Summary of the invention

[0005] In view of the problems existing in the prior art, the present invention provides a fixture and use method for honing a parking pawl. According to the curved surface and boss structure on the surface of the parking pawl, a contour plate matching the pawl profile and contour is provided to clamp the pawl contour surface. At the same time, an anti-mistake structure is provided to tighten the curved concave structure of the parking pawl. The entire parking pawl is fixed in position with the help of a handle, so that the parking pawl can remain stable and motionless during the honing process, thereby ensuring the accuracy of the parking pawl punching and honing process and improving production efficiency.

[0006] The technical solution of the present invention is as follows:

[0007] In a first aspect of the present invention, a fixture for honing a parking pawl is provided, comprising a base, a profiling plate is provided on the base, a connecting plate is provided on the top of the profiling plate, a mounting plate is provided on the connecting plate, a honing hole is provided on the mounting plate, a fixing structure is provided between the mounting plate and the profiling plate, and a through hole is provided on the fixing structure;

[0008] A groove structure matching the outer contour of the parking pawl is provided in the middle of the profiling plate. After the parking pawl is arranged in the groove structure, the punching hole required for the parking pawl is aligned with the through hole on the fixing structure and the honing hole on the mounting plate.

[0009] In some embodiments of the present invention, a plurality of threaded connection holes are provided at the bottom of the base.

[0010] In some embodiments of the present invention, the contour plate is detachably connected to the base and the connecting plate.

[0011] In some embodiments of the present invention, a side portion of the base is provided with an anti-error structure, and the anti-error structure abuts against the parking pawl.

[0012] In some embodiments of the present invention, the error-proofing structure is detachably connected to the base.

[0013] In some embodiments of the present invention, the anti-error structure includes an arc-shaped protrusion structure and an L-shaped plate, one end of the L-shaped plate is provided with a strip hole, and is detachably connected to the base through the strip hole, and the other end of the L-shaped plate is fixedly connected to the arc-shaped protrusion structure, and the arc-shaped protrusion structure is adapted to abut against the curved concave structure on the parking pawl.

[0014] In some embodiments of the present invention, the fixing structure includes a fixing plate, one end of which is provided with a handle, the other end of which is rotatably connected to the contoured plate, and the fixing plate is provided with a through hole.

[0015] In some embodiments of the present invention, the fixing plate is disposed between the mounting plate and the contoured plate, and a protruding structure is provided on one side close to the connecting plate, and a magnet is provided on the protruding structure.

[0016] In some embodiments of the present invention, the bottom surface of the fixing plate is parallel to and abuts against the upper surface of the contoured plate.

[0017] In a second aspect of the present invention, a method for using a fixture for honing a parking pawl is provided, comprising:

[0018] According to the pawl profile, contour and punching position of the parking pawl to be processed, determine the profiling plate and error-proofing structure to be used, and assemble the fixture;

[0019] Rotate the handle to move the fixed plate away from the connecting plate, place the parking pawl into the groove structure on the profiling plate, the error-proofing structure fits and abuts against the curved concave structure on the parking pawl, the upper surface of the parking pawl is parallel to the upper surface of the profiling plate, and the punching hole required for the parking pawl is aligned with the through hole on the fixed structure and the honing hole on the mounting plate;

[0020] The handle is rotated to bring the fixed plate close to the connecting plate, and the fixed plate is magnetically attracted to the connecting plate to lock the parking pawl;

[0021] The parking pawl is punched through the honing mounting hole using a honing device.

[0022] One or more technical solutions of the present invention have the following beneficial effects:

[0023] The present invention provides a parking pawl honing fixture and use method. According to the curved surface and boss structure on the surface of the parking pawl, a contour plate matched with the pawl profile and contour is provided to clamp the pawl contour surface. At the same time, an error-proofing structure is provided to tighten the curved concave structure of the parking pawl. At the same time, the parking pawl is accurately fixed on the contour plate and will not be misplaced. The entire parking pawl is fixed in position with the help of a handle, so that the parking pawl can be kept stable and motionless during the honing process, thereby ensuring the accuracy of the parking pawl punching and honing process and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of a parking pawl honing fixture provided in Example 1 of the present invention without the parking pawl placed thereon;

[0025] Figure 2 A schematic diagram of the overall structure of a parking pawl honing fixture provided in Example 1 of the present invention for placing a parking pawl;

[0026] Figure 3 A schematic diagram of the overall structure of a parking pawl provided in Example 1 of the present invention;

[0027] Figure 4 This is a schematic diagram of the overall structure of the fixing structure provided in Example 1 of the present invention;

[0028] Figure 5 This is a schematic diagram of the overall structure of the error-proofing structure provided in Example 1 of the present invention.

[0029] In the figure: 1. base; 2. contour plate; 3. connecting plate; 4. mounting plate; 5. honing hole; 6. fixing plate; 7. handle; 8. error-proofing structure; 81. arc-shaped protruding structure; 82. L-shaped plate; 83. strip hole; 9. threaded connection hole; 10. parking pawl; 11. through hole; 12. magnet. DETAILED DESCRIPTION

[0030] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0031] Since the parking pawl is a part with a special shape, such as Figure 3 As shown, its shape is irregular, with many curved surfaces and bosses on the surface, and many parts need to be processed. At present, when processing the parking pawl, due to the differences in the pawl profile and contour, the traditional clamping tools cannot achieve stable clamping processing for the pawl, especially during the punching and honing process, the pawl needs to remain stable, otherwise even a small movement will affect the honing accuracy of the inner wall of the punching hole, further affecting the use of the parking pawl, and there are great safety hazards when used on the vehicle.

[0032] The current setting of the punching and honing fixture for the parking pawl is often to set a specific clamping tool according to the structure of the specific pawl, which is very time-consuming and labor-intensive, and also increases the processing cost. Therefore, the present invention is designed to provide a fixture tool specially used for punching and honing the parking pawl to solve the above problem.

[0033] Example 1

[0034] In a typical embodiment of the present invention, Figure 1 and Figure 2 As shown, a jig for honing a parking pawl 10 is provided, comprising a base 1, a profiling plate 2 is provided on the base 1, a connecting plate 3 is provided on the top of the profiling plate 2, a mounting plate 4 is provided on the connecting plate 3, a honing hole 5 is provided on the mounting plate 4, a fixing structure is provided between the mounting plate 4 and the profiling plate 2, and a through hole 11 is provided on the fixing structure;

[0035] The middle of the contour plate 2 is provided with a groove structure adapted to the outer contour of the parking pawl 10. After the parking pawl 10 is arranged in the groove structure, the punching hole required for the parking pawl 10 is aligned with the through hole 11 on the fixing structure and the honing hole 5 on the mounting plate 4.

[0036] Furthermore, a plurality of threaded connection holes 9 are provided at the bottom of the base 1 .

[0037] The base 1 can be connected to other equipment and supporting devices through multiple threaded connection holes 9, thereby ensuring that the entire furniture tooling can remain stable during use and will not shake due to honing and affect the processing quality.

[0038] Furthermore, the profiling plate 2 is detachably connected to the base 1 and the connecting plate 3. By providing a detachable profiling plate 2 connected to the base 1, adaptation to different models of parking pawls 10 can be achieved.

[0039] Furthermore, the side of the base 1 is provided with an anti-mistake structure 8, and the anti-mistake structure 8 abuts against the parking pawl 10. By providing the anti-mistake structure 8, it can be ensured that the parking pawl 10 is tightly abutted against the curved concave structure provided by the parking pawl 10, and at the same time, it is ensured that the parking pawl 10 is accurately fixed on the contour plate 2 and will not be misplaced.

[0040] Furthermore, the error-proofing structure 8 can be detachably connected to the base 1. According to the different structures of the parking pawl 10, the error-proofing structure 8 with a corresponding adaptation structure is provided to improve the practicality of the device.

[0041] Further, such as Figure 5 As shown, the error-proofing structure 8 includes an arc-shaped protruding structure 81 and an L-shaped plate 82. One end of the L-shaped plate 82 is provided with a strip hole 83, and is detachably connected to the base 1 through the strip hole 83. The other end of the L-shaped plate 82 is fixedly connected to the arc-shaped protruding structure 81, and the arc-shaped protruding structure 81 is adapted to abut against the curved concave structure on the parking pawl 10. Through the provided strip hole 83, the installation position of the L-shaped plate 82 and the base 1 can be adjusted, so as to better adapt to the curved surface structure of the parking pawl 10.

[0042] Further, such as Figure 4 As shown, the fixing structure includes a fixing plate 6, one end of which is provided with a handle 7, the other end of which is rotatably connected to the profiling plate 2, and a through hole 11 is provided on the fixing plate 6. By setting the fixing plate 6, the control handle 7 fixes the position of the entire parking pawl 10, and at the same time, the profiling plate 2 adapted to the profile and contour of the pawl is provided to clamp the contour surface of the pawl, and the anti-mistake structure 8 is provided to tighten the curved concave structure provided on the parking pawl 10, so as to achieve the locking of the entire parking pawl 10 and ensure the stability during processing.

[0043] Furthermore, the fixing plate 6 is provided between the mounting plate 4 and the contour plate 2 and is provided with a protruding structure on one side close to the connecting plate 3, and the protruding structure is provided with a magnet 12. By providing the fixing plate 6 and providing the magnet 12 on the fixing plate 6, the fixing plate 6 can be conveniently separated from and locked to the connecting plate 3, thereby facilitating the placement and clamping of the parking pawl 10.

[0044] Furthermore, the bottom surface of the fixing plate 6 is parallel to and abuts against the upper surface of the contoured plate 2 .

[0045] In a second aspect of the present invention, a method for using a fixture for honing a parking pawl 10 is provided, comprising:

[0046] According to the pawl profile, contour and punching position of the parking pawl 10 to be processed, the profiling plate 2 and error-proofing structure 8 to be used are determined, and the fixture is assembled;

[0047] The handle 7 is rotated to make the fixing plate 6 away from the connecting plate 3, and the parking pawl 10 is placed in the groove structure on the profiling plate 2. The anti-mistake structure 8 is adapted to abut against the curved concave structure on the parking pawl 10. The upper surface of the parking pawl 10 is parallel to the upper surface of the profiling plate 2. The punching hole required for the parking pawl 10 is aligned with the through hole 11 on the fixing structure and the honing hole 5 on the mounting plate 4.

[0048] The handle 7 is rotated to make the fixing plate 6 approach the connecting plate 3, and the fixing plate 6 is magnetically attracted to the connecting plate 3 by the magnet 12, so as to lock the parking pawl 10;

[0049] The parking pawl 10 is punched and processed through the honing mounting hole using a honing device.

[0050] The present invention provides a parking pawl honing fixture and use method. According to the curved surface and boss structure on the surface of the parking pawl, a contour plate matched with the pawl profile and contour is provided to clamp the pawl contour surface. At the same time, an error-proofing structure is provided to tighten the curved concave structure of the parking pawl. At the same time, the parking pawl is accurately fixed on the contour plate and will not be misplaced. The entire parking pawl is fixed in position with the help of a handle, so that the parking pawl can be kept stable and motionless during the honing process, thereby ensuring the accuracy of the parking pawl punching and honing process and improving production efficiency.

[0051] Although the above describes the specific implementation mode of the present invention in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art on the basis of the technical solution of the present invention without creative work are still within the scope of protection of the present invention.

Claims

1. A parking pawl honing fixture, characterized in that: It comprises a base, a profiling plate is arranged on the base, a connecting plate is arranged on the top of the profiling plate, a mounting plate is arranged on the connecting plate, a honing hole is arranged on the mounting plate, a fixing structure is arranged between the mounting plate and the profiling plate, and a through hole is arranged on the fixing structure; A groove structure matching the outer contour of the parking pawl is provided in the middle of the profiling plate. After the parking pawl is arranged in the groove structure, the punching hole required for the parking pawl is aligned with the through hole on the fixing structure and the honing hole on the mounting plate.

2. A parking pawl honing fixture as claimed in claim 1, characterized in that: The bottom of the base is provided with a plurality of threaded connection holes.

3. A parking pawl honing fixture as claimed in claim 1, characterized in that: The contoured plate is detachably connected to the base and the connecting plate.

4. A parking pawl honing fixture as claimed in claim 1, characterized in that: A side portion of the base is provided with an anti-error structure, and the anti-error structure abuts against the parking pawl.

5. A parking pawl honing fixture as claimed in claim 4, characterized in that: The error-proofing structure is detachably connected to the base.

6. A parking pawl honing fixture as claimed in claim 5, characterized in that: The anti-error structure includes an arc-shaped protrusion structure and an L-shaped plate. One end of the L-shaped plate is provided with a strip hole, and is detachably connected to the base through the strip hole. The other end of the L-shaped plate is fixedly connected to the arc-shaped protrusion structure, and the arc-shaped protrusion structure is adapted to abut against the curved concave structure on the parking pawl.

7. A parking pawl honing fixture as claimed in claim 1, characterized in that: The fixing structure comprises a fixing plate, one end of which is provided with a handle, the other end of which is rotatably connected to the contour plate, and a through hole is provided on the fixing plate.

8. A parking pawl honing fixture as claimed in claim 7, characterized in that: The fixing plate is arranged between the mounting plate and the contour plate, and a protruding structure is provided on one side close to the connecting plate, and a magnet is provided on the protruding structure.

9. A parking pawl honing fixture as claimed in claim 8, characterized in that: The bottom surface of the fixing plate is parallel to and abuts against the upper surface of the contoured plate.

10. A method for using a parking pawl honing fixture as claimed in any one of claims 1 to 9, characterized in that: include: According to the pawl profile, contour and punching position of the parking pawl to be processed, determine the profiling plate and error-proofing structure to be used, and assemble the fixture; Rotate the handle to move the fixed plate away from the connecting plate, place the parking pawl into the groove structure on the profiling plate, the error-proofing structure fits and abuts against the curved concave structure on the parking pawl, the upper surface of the parking pawl is parallel to the upper surface of the profiling plate, and the punching hole required for the parking pawl is aligned with the through hole on the fixed structure and the honing hole on the mounting plate; The handle is rotated to bring the fixed plate close to the connecting plate, and the fixed plate is magnetically attracted to the connecting plate to lock the parking pawl; The parking pawl is punched through the honing mounting hole using a honing device.

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