Automatic gearbox valve plate testing device

Abstract

The invention belongs to the technical field of automobile part testing, and provides an automatic gearbox valve plate testing device which comprises a valve plate fixing mechanism which comprises a mounting plate, a through groove is formed in the mounting plate, and a positioning supporting assembly used for fixing an automatic gearbox valve plate in the through groove is further arranged on the mounting plate; the pressing and spraying mechanism comprises an upper mounting plate and a protective cover arranged above the upper mounting plate, a first lifting assembly used for adjusting the height of the protective cover is arranged between the upper mounting plate and the protective cover, and a spraying assembly used for spraying oil to the surface of the automatic gearbox valve plate is arranged in the protective cover; the oil immersion mechanism comprises a lifting oil basin arranged below the mounting plate and a second lifting assembly used for adjusting the height of the lifting oil basin, and an automatic oil drainage assembly is arranged in the lifting oil basin; and the gear engaging mechanism penetrates through the lifting oil basin and drives the automatic gearbox valve plate to execute gear shifting. According to the invention, automatic gear shifting adjustment can be carried out, oil liquid can be automatically discharged, the test efficiency is improved, and the operation safety is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of automotive component testing, and particularly relates to a test device for an automatic transmission valve plate. Background Art

[0002] During the production and testing of existing automotive hydraulic valve plates, it is necessary to assemble and detect the hydraulic valve plates. During the detection process, it is necessary to simulate the working conditions of the transmission valve plate, that is, to conduct tests on the actual working conditions of soaking or spraying the hydraulic valve plate with oil. In the traditional solution, each time of testing, it is necessary to first fix the valve plate and then fill the oil basin with oil, and then manually move the gear selector plate to achieve the working conditions of different gears of P, R, N, and D. After the test is completed, the oil in the oil basin is drained through a valve by manual operation. This method is time-consuming and inconvenient, and there is a risk of burns due to the high oil temperature during testing. Summary of the Invention

[0003] The purpose of the present invention is to provide a test device for an automatic transmission valve plate to solve the above problems.

[0004] To achieve the above purpose, the present invention provides the following solution: A test device for an automatic transmission valve plate, comprising:

[0005] A valve plate fixing mechanism, including a mounting plate, a through groove is opened on the mounting plate, and a positioning and supporting component for fixing the automatic transmission valve plate in the through groove is further arranged on the mounting plate;

[0006] A pressing and spraying mechanism, including an upper mounting plate and a protective cover arranged above the mounting plate, a first lifting component for adjusting the height of the protective cover is arranged between the upper mounting plate and the protective cover, and a spraying component for spraying oil on the surface of the automatic transmission valve plate is arranged in the protective cover;

[0007] An oil immersion mechanism, including a lifting oil basin arranged below the mounting plate and a second lifting component for adjusting the height of the lifting oil basin, and an automatic oil draining component is arranged in the lifting oil basin;

[0008] A gear shifting mechanism, the gear shifting mechanism penetrates through the lifting oil basin and drives the automatic transmission valve plate to shift gears.

[0009] Preferably, the first lifting component includes a pressing oil cylinder vertically and fixedly penetrating through the upper mounting plate, a pressing bottom plate is horizontally and fixedly connected to the telescopic end of the pressing oil cylinder, the pressing bottom plate is located below the upper mounting plate, and the protective cover is fixedly connected to the bottom of the pressing bottom plate.

[0010] Preferably, a plurality of pressing rods are vertically and fixedly connected to the bottom of the pressing bottom plate, the plurality of pressing rods penetrate through the protective cover, and the plurality of pressing rods are used for pressing the top of the automatic transmission valve plate.

[0011] Preferably, the spray assembly includes a plurality of spray pipes fixedly connected to the inner top of the protective cover, the plurality of spray pipes are respectively connected to the hydraulic station, the side walls of the plurality of spray pipes are respectively connected to a plurality of nozzles, and the plurality of nozzles are used to spray oil onto the surface of the automatic transmission valve plate.

[0012] Preferably, it further comprises a mounting base plate, to which a tooling base plate is fixedly connected, and the second lifting assembly is arranged on the tooling base plate;

[0013] The mounting plate is fixedly connected to the mounting base plate.

[0014] Preferably, the second lifting assembly comprises a lifting cylinder vertically fixedly connected to the tooling bottom plate, and the lifting oil pan is fixedly connected to the telescopic end of the lifting cylinder;

[0015] A plurality of limit rods are vertically fixedly connected to the tooling bottom plate, and the limit rods slide through the bottom wall of the lifting oil pan, and the automatic oil discharge assembly is arranged between the lifting oil pan and the limit rods.

[0016] Preferably, the automatic oil discharge assembly comprises a limiting ring fixedly sleeved on the top of the limiting rod, a sealing gasket is fixedly connected to the inner bottom of the lifting oil pan, and the sealing gasket is slidably sleeved on the limiting rod;

[0017] When the lifting oil pan rises to the top, the bottom of the limiting ring fits against the sealing gasket to prevent oil leakage.

[0018] Preferably, the gear shifting mechanism includes a first guide seat fixedly connected to the inner side of the lifting oil pan, a horizontal guide rod is slidably inserted into the first guide seat, a sealing ring is arranged between the horizontal guide rod and the first guide seat, a gear shift lever is fixedly connected to one end of the horizontal guide rod located inside the lifting oil pan, and a sliding drive member is arranged between one end of the horizontal guide rod located outside the lifting oil pan and the tooling bottom plate.

[0019] Preferably, the sliding drive component includes a horizontal guide rail module and a servo motor fixedly connected to the tooling base plate, the sliding direction of the horizontal guide rail module is the same as the sliding direction of the horizontal guide rod, the servo motor is used to drive the horizontal guide rail module to move horizontally, and a longitudinal buffer component is provided on the horizontal guide rail module, and the horizontal guide rail module drives the horizontal guide rod to move in the first guide seat through the longitudinal buffer component.

[0020] Preferably, the longitudinal buffer comprises a guide rail mounting seat fixedly connected to the moving end of the horizontal guide rail module, one end of the lifting guide rail module is fixedly connected to the guide rail mounting seat, and the other end of the lifting guide rail module is fixedly connected to the horizontal guide rod.

[0021] Compared with the prior art, the present invention has the following advantages and technical effects: the main function of the positioning support assembly is to enable the automatic transmission valve plate to be quickly placed on the mounting plate and placed in the through groove; the main function of the through groove is to enable the automatic transmission valve plate to be placed in the lifting oil basin after it rises to the top with the lifting oil basin; the main function of the protective cover is to prevent oil and oil mist from splashing; the main function of the spray assembly is to spray oil on the surface of the automatic transmission valve plate to simulate the actual working conditions inside the transmission; the main function of the lifting oil basin is to immerse the automatic transmission valve plate in oil; the main function of the automatic oil discharge assembly is to automatically discharge the oil in the lifting oil basin after the test is completed; the main function of the gear mechanism is to drive the automatic transmission valve plate to perform a sliding action. On the whole, the present invention only requires the operator to place the automatic transmission valve plate on the positioning support assembly, and automatic gear shifting adjustment and automatic oil discharge can be performed during the test, without excessive operation by the personnel, thereby improving the test efficiency and the safety of the personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the testing device of the present invention;

[0024] Figure 2 This is a schematic diagram of the compacting and spraying mechanism of the present invention;

[0025] Figure 3 This is a schematic diagram of the valve plate fixing mechanism of the present invention;

[0026] Figure 4 It is a schematic diagram of the gear-engaging mechanism of the present invention;

[0027] Figure 5 It is a schematic diagram of the installation of the gear engaging mechanism and the oil immersion mechanism of the present invention;

[0028] Among them, 1. Mounting base plate; 2. Support column; 3. Upper mounting plate; 4. Guide column; 5. Clamping oil cylinder; 6. Clamping base plate; 7. Pressure rod; 8. Protective cover; 9. Visual plate; 10. Spray pipe; 11. Nozzle; 12. Mounting plate support; 13. Mounting plate; 14. Valve plate support plate; 15. Pin shaft; 16. Lifting oil pan; 17. Valve plate support block; 18. Limiting ring; 19. Sealing gasket; 20. Oil inlet; 2 2. Limit rod; 23. Guide rod; 24. First guide seat; 25. Lifting cylinder; 26. Second guide seat; 27. Sealing ring; 28. Horizontal guide rod; 29. ​​Lifting guide rail module; 30. First position sensor; 31. Servo motor; 32. Gear base plate; 33. Horizontal guide rail module; 34. Guide rail mounting seat; 35. Gear lever; 36. Through slot; 37. Tooling base plate; 38. Second position sensor. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] Reference Figure 1-Figure 5 The present invention provides an automatic transmission valve plate testing device, comprising:

[0032] The valve plate fixing mechanism comprises a mounting plate 13, a through slot 36 is formed on the mounting plate 13, and a positioning support assembly for fixing the automatic transmission valve plate in the through slot 36 is also provided on the mounting plate 13;

[0033] The compacting spray mechanism comprises an upper mounting plate 3 and a protective cover 8 arranged above the mounting plate 13, a first lifting assembly for adjusting the height of the protective cover 8 is arranged between the upper mounting plate 3 and the protective cover 8, and a spray assembly for spraying oil onto the surface of the automatic transmission valve plate is arranged in the protective cover 8;

[0034] The oil immersion mechanism comprises a lifting oil pan 16 disposed below the mounting plate 13 and a second lifting assembly for adjusting the height of the lifting oil pan 16, wherein the lifting oil pan 16 is provided with an automatic oil drain assembly;

[0035] The gear engaging mechanism penetrates the lifting oil pan 16 and drives the automatic transmission valve plate to perform gear shifting.

[0036] The main function of the positioning support assembly is to enable the automatic transmission valve plate to be quickly placed on the mounting plate 13 and placed in the through groove 36; the main function of the through groove 36 is to enable the automatic transmission valve plate to be placed in the lifting oil basin 16 after it rises to the top with the lifting oil basin 16; the main function of the protective cover 8 is to prevent oil and oil mist from splashing; the main function of the spray assembly is to spray oil on the surface of the automatic transmission valve plate to simulate the actual working conditions inside the transmission; the main function of the lifting oil basin 16 is to immerse the automatic transmission valve plate in oil; the main function of the automatic oil discharge assembly is to enable the oil in the lifting oil basin 16 to be automatically discharged after the test is completed; the main function of the gear-engaging mechanism is to drive the automatic transmission valve plate to perform a sliding action. On the whole, the present invention only requires the operator to place the automatic transmission valve plate on the positioning support assembly, and automatic gear shifting and oil discharge can be performed during the test, without requiring excessive operations by the personnel, thereby improving the test efficiency and the safety of the personnel.

[0037] A further optimized solution is that the first lifting assembly includes a clamping cylinder 5 vertically fixed and penetrated on the upper mounting plate 3, the telescopic end of the clamping cylinder 5 is horizontally fixedly connected to a clamping base plate 6, the clamping base plate 6 is located below the upper mounting plate 3, and the protective cover 8 is fixedly connected to the bottom of the clamping base plate 6.

[0038] According to a further optimized solution, a plurality of guide columns 4 are vertically fixedly connected to the top of the compression base plate 6 , and the plurality of guide columns 4 slide through the upper mounting plate 3 .

[0039] In a further optimized solution, an observation hole is provided on the side wall of the protective cover 8, and a visual plate 9 is fixedly connected between the inner walls of the observation hole. The main function of the visual plate 9 is to facilitate observation of the working condition of the automatic transmission valve plate during the test process.

[0040] According to a further optimized solution, a plurality of pressure rods 7 are vertically fixedly connected to the bottom of the clamping bottom plate 6, and the plurality of pressure rods 7 penetrate through the protective cover 8, and the plurality of pressure rods 7 are used to clamp the top of the automatic transmission valve plate.

[0041] like Figure 4 As shown, a plurality of pressure rods 7 are designed according to the bolt structure of the automatic transmission valve plate to be tested. When the clamping oil cylinder 5 extends, the pressure rods 7 are driven to move downward through the clamping bottom plate 6 and press against the upper surface of the automatic transmission valve plate, so that the automatic transmission valve plate is fixed between the pressure rods 7 and the positioning support assembly.

[0042] A further optimized solution is that the spray assembly includes a plurality of spray pipes 10 fixedly connected to the inner top of the protective cover 8, the plurality of spray pipes 10 are respectively connected to the hydraulic station, and the side walls of the plurality of spray pipes 10 are respectively connected to a plurality of nozzles 11, and the plurality of nozzles 11 are used to spray oil onto the surface of the automatic transmission valve plate.

[0043] like Figure 2As shown, one end of a plurality of spray pipes 10 is connected to a hydraulic pipe of a hydraulic station (not shown in the figure), and the hydraulic oil pumped by the hydraulic station is sprayed onto the surface of the hydraulic valve plate through a plurality of nozzles 11 arranged on the plurality of spray pipes 10 to simulate the actual working conditions in the gearbox.

[0044] A further optimized solution further includes an installation base plate 1, to which a tooling base plate 37 is fixedly connected, and a second lifting assembly is arranged on the tooling base plate 37;

[0045] The mounting plate 13 is fixedly connected to the mounting base plate 1 .

[0046] According to a further optimized solution, a plurality of support columns 2 are vertically fixedly connected to the mounting base plate 1 , and an upper mounting plate 3 is fixedly connected between the tops of the plurality of support columns 2 .

[0047] According to a further optimized solution, a plurality of mounting plate pillars 12 are vertically fixedly connected to the mounting base plate 1 , and a mounting plate 13 is fixedly connected between the tops of the plurality of mounting plate pillars 12 .

[0048] In a further optimized solution, the second lifting assembly includes a lifting cylinder 25 vertically fixedly connected to the tooling bottom plate 37, and a lifting oil pan 16 is fixedly connected to the telescopic end of the lifting cylinder 25;

[0049] A plurality of limit rods 22 are vertically fixedly connected to the tooling bottom plate 37 . The limit rods 22 slide through the bottom wall of the lifting oil pan 16 . The automatic oil drain assembly is arranged between the lifting oil pan 16 and the limit rods 22 .

[0050] In a further optimized solution, a plurality of valve plate support plates 14 are fixedly connected to the top of the mounting plate 13, and the automatic transmission valve plate is placed on the valve plate support plates 14. A plurality of valve plate support plates 14 are provided with pins 15 or pins (not shown in the figure) for matching with the pin holes or pins on the automatic transmission valve plate to achieve positioning and placement.

[0051] like Figure 1 and Figure 3 As shown, the valve plate support plate 14 is set to be Z-shaped. Under the premise of smoothly supporting the automatic transmission valve plate, it can avoid interference with the side wall of the lifting oil basin 16, so that the lifting oil basin 16 can rise to the target height, so that the automatic transmission valve plate can be immersed in the oil in the lifting oil basin 16.

[0052] Further optimizing the scheme, the automatic oil discharge assembly includes a limit ring 18 fixedly sleeved on the top of the limit rod 22, and a sealing gasket 19 is fixedly connected to the inner bottom of the lifting oil pan 16, and the sealing gasket 19 is slidably sleeved on the limit rod 22;

[0053] When the lifting oil pan 16 rises to the top, the bottom of the limiting ring 18 fits with the sealing gasket 19 to prevent oil leakage.

[0054] To further optimize the solution, an oil inlet 20 is provided at the bottom of the lifting oil pan 16 , and the oil inlet 20 is communicated with the oil supply pipeline of the hydraulic station, and the hydraulic station supplies oil to the inside of the lifting oil pan 16 through the oil inlet 20 .

[0055] To further optimize the solution, a valve plate support block 17 is fixedly connected to the inner side of the lifting oil pan 16 .

[0056] According to a further optimized solution, a plurality of second guide seats 26 are fixedly connected to the top of the tooling bottom plate 37 , and guide rods 23 are vertically slidably connected inside the plurality of second guide seats 26 , and the guide rods 23 are fixedly connected to the bottom of the lifting oil pan 16 .

[0057] like Figure 1 , Figure 3 and Figure 5 As shown, the valve plate support block 17 arranged in the lifting oil basin 16 can contact the bottom surface of the automatic transmission valve plate when the lifting oil basin 16 rises, and cooperate with the pressure rod 7 to squeeze the top of the automatic transmission valve plate, so as to automatically fix the automatic transmission valve plate in the through groove 36, thereby realizing automatic clamping of the automatic transmission valve plate.

[0058] The valve plate support block 17 is provided with different oil passages which can be communicated with the oil supply port of the hydraulic station, or with various sensors as required.

[0059] The oil inlet 20 provided at the bottom of the lifting oil pan 16 is communicated with the oil supply pipeline of the hydraulic station, so that the effect of automatically supplying oil to the lifting oil pan 16 can be achieved.

[0060] The telescopic end of the lifting oil cylinder 25 drives the lifting oil pan 16 to move up and down along the direction of the guide rod 23.

[0061] When the lifting oil cylinder 25 drives the lifting oil pan 16 to rise, the sealing gasket 19 inside the lifting oil pan 16 contacts the limiting ring 18 on the top of the limiting rod 22, so that the bottom of the lifting oil pan 16 is in a sealed state, effectively preventing the oil in the lifting oil pan 16 from leaking. When the test is completed, the lifting oil cylinder 25 drives the lifting oil pan 16 to descend, and the sealing gasket 19 inside the lifting oil pan 16 is out of contact with the limiting ring 18, so that the oil in the lifting oil pan 16 leaks through the gap between the limiting rod 22 and the bottom of the lifting oil pan 16, achieving the effect of automatic oil unloading.

[0062] A further optimized solution is that the gear shifting mechanism includes a first guide seat 24 fixedly connected to the inner side of the lifting oil pan 16, a horizontal guide rod 28 is slidably inserted into the first guide seat 24, a sealing ring 27 is provided between the horizontal guide rod 28 and the first guide seat 24, one end of the horizontal guide rod 28 located inside the lifting oil pan 16 is fixedly connected to the gear lever 35, and a sliding drive member is provided between the end of the horizontal guide rod 28 located outside the lifting oil pan 16 and the tooling bottom plate 37.

[0063] A further optimized solution is that the sliding drive component includes a horizontal guide rail module 33 and a servo motor 31 fixedly connected to the tooling base plate 37. The sliding direction of the horizontal guide rail module 33 is the same as the sliding direction of the horizontal guide rod 28. The servo motor 31 is used to drive the horizontal guide rail module 33 to move horizontally. A longitudinal buffer is provided on the horizontal guide rail module 33. The horizontal guide rail module 33 drives the horizontal guide rod 28 to move in the first guide seat 24 through the longitudinal buffer.

[0064] Further optimization scheme, such as Figure 4 As shown, the horizontal guide rail module 33 and the servo motor 31 are fixedly connected to the tooling base plate 37 through the gear base plate 32.

[0065] According to a further optimized solution, the longitudinal buffer comprises a guide rail mounting seat 34 fixedly connected to the moving end of the horizontal guide rail module 33 , one end of the lifting guide rail module 29 is fixedly connected to the guide rail mounting seat 34 , and the other end of the lifting guide rail module 29 is fixedly connected to the horizontal guide rod 28 .

[0066] The horizontal guide rail module 33 and the lifting guide rail module 29 are conventional equipment, and their structures and working processes are not described in detail.

[0067] In a further optimized solution, a first position sensor 30 is installed on the guide rail mounting seat 34, and a second position sensor 38 is installed on the top and bottom of the lifting guide rail module 29. The second position sensor 38 is fixedly connected to the tooling bottom plate 37 through a sensor support.

[0068] like Figure 4 As shown, the first position sensor 30 and the second position sensor 38 can respectively detect the movement of the horizontal guide rail module 33 and the lifting guide rail module 29, so as to accurately detect the position of the gear shift lever 35.

[0069] like Figure 4 and Figure 5 As shown, a linear bearing for guidance is provided in the first guide seat 24, and the linear bearing matches with the horizontal guide rod 28, and the horizontal guide rod 28 can move along the direction of the linear bearing.

[0070] The servo motor 31 drives the horizontal guide rail module 33 to move forward and backward, thereby driving the horizontal guide rod 28 to move forward and backward in the first guide seat 24 through the lifting guide rail module 29, thereby driving the gear shift lever 35 to move forward and backward.

[0071] like Figure 5 As shown, when the lifting oil pan 16 rises under the action of the jacking cylinder 25, the lifting guide rail module 29 extends as the horizontal guide rod 28 rises. When the lifting oil pan 16 rises to the right position, the gear shift lever 35 can contact the gear fork on the automatic transmission valve plate. Through the movement of the gear shift lever 35, the gear of the automatic transmission valve plate is automatically switched.

[0072] In a further optimization scheme, the lifting cylinder 25 and the clamping cylinder 5 can be replaced with air cylinders according to production needs.

[0073] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0074] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. An automatic transmission valve plate testing device, characterized in that: include: A valve plate fixing mechanism comprises a mounting plate (13), the mounting plate (13) being provided with a through groove (36), and the mounting plate (13) being further provided with a positioning support assembly for fixing the automatic transmission valve plate in the through groove (36); A compacting spray mechanism comprises an upper mounting plate (3) and a protective cover (8) arranged above the mounting plate (13); a first lifting assembly for adjusting the height of the protective cover (8) is arranged between the upper mounting plate (3) and the protective cover (8); and a spray assembly for spraying oil onto the surface of the automatic transmission valve plate is arranged inside the protective cover (8); The oil immersion mechanism comprises a lifting oil pan (16) arranged below the mounting plate (13) and a second lifting component for adjusting the height of the lifting oil pan (16), wherein the lifting oil pan (16) is provided with an automatic oil draining component; A gear engaging mechanism, wherein the gear engaging mechanism penetrates the lifting oil pan (16) and drives the automatic transmission valve plate to perform gear shifting.

2. The automatic transmission valve plate testing device according to claim 1, characterized in that: The first lifting assembly comprises a clamping cylinder (5) vertically fixedly installed on the upper mounting plate (3), the telescopic end of the clamping cylinder (5) is horizontally fixedly connected to a clamping base plate (6), the clamping base plate (6) is located below the upper mounting plate (3), and the protective cover (8) is fixedly connected to the bottom of the clamping base plate (6).

3. The automatic transmission valve plate testing device according to claim 2, characterized in that: A plurality of pressure rods (7) are vertically fixedly connected to the bottom of the clamping bottom plate (6), and the plurality of pressure rods (7) penetrate the protective cover (8). The plurality of pressure rods (7) are used to clamp the top of the automatic transmission valve plate.

4. The automatic transmission valve plate testing device according to claim 1, characterized in that: The spray assembly comprises a plurality of spray pipes (10) fixedly connected to the top of the inner side of the protective cover (8), the plurality of spray pipes (10) being respectively connected to the hydraulic station, the side walls of the plurality of spray pipes (10) being respectively connected to a plurality of nozzles (11), the plurality of nozzles (11) being used to spray oil onto the surface of the automatic transmission valve plate.

5. The automatic transmission valve plate testing device according to claim 1, characterized in that: It also comprises a mounting base plate (1), to which a tooling base plate (37) is fixedly connected, and the second lifting assembly is arranged on the tooling base plate (37); The mounting plate (13) is fixedly connected to the mounting base plate (1).

6. The automatic transmission valve plate testing device according to claim 5, characterized in that: The second lifting assembly comprises a lifting cylinder (25) vertically fixedly connected to the tooling bottom plate (37), and the lifting oil basin (16) is fixedly connected to the telescopic end of the lifting cylinder (25); A plurality of limit rods (22) are vertically fixedly connected to the tooling bottom plate (37), the limit rods (22) slidably penetrate the bottom wall of the lifting oil pan (16), and the automatic oil discharge assembly is arranged between the lifting oil pan (16) and the limit rods (22).

7. The automatic transmission valve plate testing device according to claim 6, characterized in that: The automatic oil discharge assembly comprises a limiting ring (18) fixedly sleeved on the top of the limiting rod (22); a sealing gasket (19) is fixedly connected to the inner bottom of the lifting oil basin (16); and the sealing gasket (19) is slidably sleeved on the limiting rod (22); When the lifting oil pan (16) rises to the top, the bottom of the limiting ring (18) fits against the sealing gasket (19) to prevent oil leakage.

8. The automatic transmission valve plate testing device according to claim 5, characterized in that: The gear engaging mechanism comprises a first guide seat (24) fixedly connected to the inner side of the lifting oil basin (16), a horizontal guide rod (28) slidingly penetrates the first guide seat (24), a sealing ring (27) is arranged between the horizontal guide rod (28) and the first guide seat (24), one end of the horizontal guide rod (28) located inside the lifting oil basin (16) is fixedly connected to a gear shift lever (35), and a sliding driving member is arranged between one end of the horizontal guide rod (28) located outside the lifting oil basin (16) and the tooling bottom plate (37).

9. The automatic transmission valve plate testing device according to claim 8, characterized in that: The sliding drive member comprises a horizontal guide rail module (33) fixedly connected to the tooling base plate (37) and a servo motor (31); the sliding direction of the horizontal guide rail module (33) is the same as the sliding direction of the horizontal guide rod (28); the servo motor (31) is used to drive the horizontal guide rail module (33) to move horizontally; a longitudinal buffer member is provided on the horizontal guide rail module (33); the horizontal guide rail module (33) drives the horizontal guide rod (28) to move in the first guide seat (24) through the longitudinal buffer member.

10. The automatic transmission valve plate testing device according to claim 9, characterized in that: The longitudinal buffer comprises a guide rail mounting seat (34) fixedly connected to the movable end of the horizontal guide rail module (33), one end of the lifting guide rail module (29) being fixedly connected to the guide rail mounting seat (34), and the other end of the lifting guide rail module (29) being fixedly connected to the horizontal guide rod (28).

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