Automatic assembly fixture for fork

Abstract

The present invention discloses an automatic assembly jig for a shift fork, comprising a mounting platform, a mounting shaft, a shift fork sleeved with the mounting shaft, a first clamping and positioning unit, a first driving unit, a second clamping and positioning unit, and a second driving unit, wherein the first clamping and positioning unit comprises a first mounting plate, a concave cross groove formed on the first mounting plate for embedding the mounting shaft, and a magnetic member arranged circumferentially around the center of the cross groove and used to attract the mounting shaft; the first driving unit comprises a first driving cylinder drivingly connected to the first mounting plate; the second clamping and positioning unit comprises a second mounting plate, and a pneumatic clamp arranged on the second mounting plate and used to clamp the shift fork; the second driving unit comprises a second driving cylinder drivingly connected to the second mounting plate. The present invention has at least the following advantages: accurate positioning, good fixing effect, high transmission stability, and optimized structure.

Description

Technical Field

[0001] The invention relates to the technical field of jigs, and in particular to an automatic assembly jig for a shift fork. Background Art

[0002] With the rapid development of social economy, cars are becoming more and more popular and have become a means of transportation for people in their daily lives. Among them, the gearbox is one of the core components of the car. The shift fork, as a component of the car gearbox, is connected to the speed change handle and is located at the lower end of the handle. The shift fork is used to change the input and output speed ratio by shifting the middle speed change wheel. The shift fork is also widely used in machine tools, and its main purpose is to achieve the speed change function.

[0003] At present, when installing shafts, manual socketing is usually adopted when sleeved bearings or rotating parts, which requires a lot of manual labor. During the process of mechanical automatic installation, the installation shaft needs to be fixed, positioned, and transported. The problem usually faced is that the installation shaft needs to be accurately positioned, and shaking will occur during the installation and transmission process, reducing the installation efficiency or directly causing the inability to install. At present, when assembling the fork, manual picking and installation are usually adopted, which consumes a lot of manual labor and has low installation efficiency. At present, when the automatic fork is clamped, the pneumatic clamp will cause certain scratches on the fork, and when the fork is pushed, it will cause the fork to shake, resulting in low installation efficiency and even causing the fork to fall. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an automatic assembly jig for a shift fork, which has accurate positioning, good fixing effect, high transmission stability and optimized structure.

[0005] In order to solve the above technical problems, the present invention provides an automatic assembly jig for a shift fork, comprising a mounting table, a mounting shaft, a shift fork sleeved on the mounting shaft, a first clamping and positioning unit, a first driving unit, a second clamping and positioning unit, and a second driving unit, wherein the first clamping and positioning unit comprises a first mounting plate, a recess on the first mounting plate forms a contoured cross groove for embedding the mounting shaft, and a plurality of magnetic parts are arranged in a ring around the center of the contoured cross groove and used to attract the mounting shaft; the first driving unit comprises a first driving cylinder connected to the first mounting plate and moving along the Y-axis direction; the second clamping and positioning unit comprises a second mounting plate, and a pneumatic clamp arranged on the second mounting plate and used to clamp the shift fork; the second driving unit comprises a second driving cylinder connected to the second mounting plate and moving along the Z-axis direction.

[0006] Furthermore, an elastic clamping plate connecting the pneumatic clamping jaw and the shift fork is provided between the two, and the top of the elastic clamping plate is fixedly connected to the pneumatic clamping jaw, and the bottom abuts against the shift fork.

[0007] Furthermore, the elastic clamping plate is provided with a first strong magnet for attracting the shift fork.

[0008] Furthermore, a guide plate is provided on the second mounting plate, and a guide hole is provided on the guide plate for the elastic clamping plate to pass through.

[0009] Furthermore, a second strong magnet for attracting the shift fork is provided on the side wall of the guide plate that abuts against the shift fork.

[0010] Furthermore, an L-shaped positioning plate is arranged on the second mounting plate, and the pneumatic clamp is arranged on the L-shaped positioning plate.

[0011] Furthermore, it comprises a first guiding unit, which comprises a first slide rail which is arranged on the mounting platform and extends along the Y-axis direction, and a first sliding block which is slidably connected to the first slide rail.

[0012] Furthermore, it comprises a second guiding unit, which comprises a vertical plate arranged on the mounting platform, a second slide rail arranged on the vertical plate and extending along the Z-axis direction, and a second sliding block slidably connected to the second slide rail.

[0013] By means of the above technical solution, the present invention has at least the following advantages:

[0014] 1. By providing a first clamping and positioning unit, the installation shaft is embedded in the contoured cross groove, which plays a role of limiting and fixing. The installation shaft is attracted by multiple magnetic parts, so that the installation shaft can be better fixed and accurately positioned;

[0015] 2. A second clamping and positioning unit is provided, including a mounting plate and a pneumatic clamping jaw, and the fork is clamped by starting the clamping jaw, which has a simple structure, stable clamping and good fixing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 is a schematic structural diagram of a first mounting plate of the present invention;

[0018] Figure 3 It is a structural schematic diagram of the elastic clamping plate of the present invention;

[0019] Figure 4 It is a structural schematic diagram of the guide plate of the present invention.

[0020] In the above drawings: 1. mounting table; 2. mounting shaft; 3. shift fork; 4. first mounting plate; 5. contoured cross slot; 6. magnetic member; 7. first driving cylinder; 8. second mounting plate; 9. pneumatic clamp; 10. second driving cylinder; 11. elastic clamping plate; 12. first strong magnet; 13. guide plate; 14. guide hole; 15. second strong magnet; 16. L-shaped positioning plate; 17. first slide rail; 18. first slider; 19. vertical plate; 20. second slide rail; 21. second slider. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0022] Combination Figures 1 to 4 As shown, the present invention discloses a fork automatic assembly fixture, including a mounting platform 1, a mounting shaft 2, a fork 3 sleeved on the mounting shaft 2, a first clamping and positioning unit, a first driving unit, a second clamping and positioning unit, and a second driving unit. The present invention also includes a first guiding unit, which includes a first slide rail 17 arranged on the mounting platform 1 and extending along the Y-axis direction, and a first slider 18 slidably connected to the first slide rail 17. Through the above-mentioned setting method, the first clamping and positioning unit can be guided in the Y-axis direction, which better ensures the movement accuracy of the overall fixture, and then indirectly ensures the accuracy of the transmission of the mounting shaft 2.

[0023] The first clamping and positioning unit includes a first mounting plate 4 fixedly mounted on the first slider 18, a concave-shaped cross groove 5 for embedding the mounting shaft 2 formed on the first mounting plate 4, and a plurality of magnetic parts 6 arranged circumferentially around the center of the profiling cross groove 5 and used to attract the mounting shaft 2. Preferably, the profiling cross groove 5 extends in the Z-axis direction and the X-axis direction respectively. Through the above-mentioned arrangement, the mounting shaft 2 is embedded in the profiling cross groove 5, and the profiling cross groove 5 has a limiting and fixing effect on the mounting shaft 2. The mounting shaft 2 is attracted by the plurality of magnetic parts 6, so that the mounting shaft 2 can be better fixed and accurately positioned. The first driving unit includes a first driving cylinder 7 that is connected to the first mounting plate 4 and moves in the Y-axis direction to provide power output for the first clamping and positioning assembly.

[0024] The present invention includes a second guide unit, which includes a vertical plate 19 arranged on the mounting platform 1, a second slide rail 20 arranged on the vertical plate 19 and extending along the Z-axis direction, and a second slider 21 slidably connected to the second slide rail 20. Through the above-mentioned arrangement, the second gripping and positioning unit can be guided in the Z-axis direction, the movement accuracy of the second gripping and positioning unit is better guaranteed, and then the stability of the pushing of the shift fork 3 is guaranteed, and the structure is optimized.

[0025] The second clamping and positioning unit includes a second mounting plate 8, and a pneumatic clamping jaw 9 disposed on the second mounting plate 8 and used to clamp the fork 3. An elastic clamping plate 11 connecting the pneumatic clamping jaw 9 and the fork 3 is disposed between the pneumatic clamping jaw 9 and the fork 3, and the top of the elastic clamping plate 11 is fixedly connected to the pneumatic clamping jaw 9, and the bottom abuts against the fork 3. Through the above-mentioned setting, the pneumatic clamping jaw 9 clamps the elastic clamping plate 11 to realize the clamping of the fork 3 by the elastic clamping plate 11, thereby avoiding scratches on the fork 3, and the clamping and fixing effect is good. In the present invention, preferably, a first strong magnet 12 for attracting the fork 3 is disposed on the elastic clamping plate 11. Through the above-mentioned setting, the fork 3 can be further fixed to ensure the stability of the fork 3 during the pushing process. The second driving unit includes a second driving cylinder 10 that is driven and connected to the second mounting plate 8 and moves along the Z-axis direction, providing power output for the second clamping and positioning unit in the Z-axis direction.

[0026] The second mounting plate 8 is provided with a guide plate 13, and the guide plate 13 is provided with a guide hole 14 for the elastic clamping plate 11 to pass through. The side wall of the guide plate 13 that contacts the shift fork 3 is provided with a second strong magnet 15 for attracting the shift fork 3. Through the above-mentioned setting method, the accuracy of the clamping of the elastic clamping plate 11 can be better guaranteed, and the fixing effect is good and the precision is high. The second mounting plate 8 is provided with an L-shaped positioning plate 16, and the pneumatic clamp 9 is arranged on the L-shaped positioning plate 16. Through the above-mentioned setting method, the accuracy of the installation of the pneumatic clamp 9 can be guaranteed, and the accuracy of the pushing of the shift fork 3 can be indirectly guaranteed.

[0027] The above-described embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or changes made by those skilled in the art based on the present invention are within the protection scope of the present invention. The protection scope of the present invention shall be subject to the claims.

Claims

1. A fork automatic assembly jig, comprising a mounting platform, a mounting shaft, and a fork sleeved on the mounting shaft, characterized in that: include: - a first gripping and positioning unit, comprising a first mounting plate, the first mounting plate being recessed to form a profiled cross groove for embedding the mounting shaft, and a plurality of magnetic members arranged in an annular direction around the center of the profiled cross groove and used for attracting the mounting shaft; - a first driving unit, driving a first driving cylinder connected to the first mounting plate and moving along the Y-axis direction; - a second clamping and positioning unit, comprising a second mounting plate, and a pneumatic clamping jaw disposed on the second mounting plate and used for clamping the shift fork; - a second driving unit, driving a second driving cylinder connected to the second mounting plate and moving along the Z-axis direction; An elastic clamping plate connecting the pneumatic clamping jaw and the shift fork is provided between the pneumatic clamping jaw and the shift fork, wherein the top of the elastic clamping plate is fixedly connected to the pneumatic clamping jaw and the bottom thereof abuts against the shift fork; The elastic clamping plate is provided with a first strong magnet for attracting the shift fork; The second mounting plate is provided with a guide plate, and the guide plate is provided with a guide hole for the elastic clamping plate to pass through; A second strong magnet for attracting the shift fork is arranged on the side wall of the guide plate that abuts against the shift fork.

2. The automatic assembly jig for shift forks according to claim 1, characterized in that: The second mounting plate is provided with an L-shaped positioning plate, and the pneumatic clamp is provided on the L-shaped positioning plate.

3. The automatic assembly jig for shift forks according to claim 1, characterized in that: It comprises a first guiding unit, which comprises a first slide rail which is arranged on the mounting platform and extends along the Y-axis direction, and a first sliding block which is slidably connected with the first slide rail.

4. The automatic assembly jig for shift forks according to claim 1, characterized in that: It comprises a second guiding unit, which comprises a vertical plate arranged on the mounting platform, a second slide rail arranged on the vertical plate and extending along the Z-axis direction, and a second sliding block slidably connected to the second slide rail.

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