Automatic assembly process of torque converter

Abstract

The present invention discloses an automatic assembly process for a hydraulic torque converter, which relates to the technical field of mechanical assembly. The process includes a feeding step, a clamping and oil control step, a moving and buffering step, a square key adjustment step, a scanning and clamping step, and an assembling step. The hydraulic torque converter is placed with its shaft head facing down on a tray, and the tray drives the hydraulic torque converter to run to the feeding station. The clamping jaw of the transfer manipulator is controlled to clamp the hydraulic torque converter above the oil receiving tray, and the hydraulic torque converter is rotated 180° for oil control. The hydraulic torque converter is placed with its shaft head facing down on the tray, which is consistent with the incoming packaging direction of the hydraulic torque converter, avoiding manual flipping of the hydraulic torque converter and reducing the labor intensity of the operator. The oil receiving tray prevents oil from dripping to the ground, and at the same time, the oil receiving tray can collect and filter the oil for reuse, reducing the cost of the transmission oil. When the hydraulic torque converter is loaded onto the production line, the tray is used, with the direction being the shaft head facing down and the oil port facing up, avoiding the situation of oil dripping downward with the traditional assembly oil port direction and reducing potential safety hazards.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical assembly, and particularly to an automatic assembly process for a hydraulic torque converter. Background Art

[0002] A hydraulic torque converter consists of a pump impeller, a turbine, a one-way clutch and a stator, as well as a torque converter housing that contains all these components inside the vehicle. The hydraulic torque converter is filled with automatic transmission fluid provided by an oil pump. When the engine and the pump impeller rotate, the fluid flow in the liquid flows out from the pump impeller, causing the turbine to rotate.

[0003] However, in the incoming material packaging of the hydraulic torque converter, the axial head direction of the hydraulic torque converter is downward, while in the transmission, the axial head direction is upward, and the two directions are opposite. It is necessary to manually turn the hydraulic torque converter by 180°, that is, the axial head direction is upward, to facilitate the assembly after the hydraulic torque converter is put on the production line. However, the weight of the hydraulic torque converter is close to 20 kg, resulting in a large labor intensity. At the same time, oil will drip to the ground during the assembly process, and there is a risk of slipping for the operator, posing a safety hazard.

[0004] Currently, no assembly process that can solve the above problems has been found. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide an automatic assembly process for a hydraulic torque converter in view of the above deficiencies, which overcomes the defects of the existing large labor intensity and safety hazards; and achieves the purpose of reducing labor intensity and reducing safety hazards.

[0006] To solve the above technical problems, the technical solution of the present invention is: an automatic assembly process for a hydraulic torque converter, including a feeding step, a clamping and oil control step, a moving and buffering step, a square key adjustment step, a scanning and clamping step, and an assembly step:

[0007] The feeding step includes:

[0008] Place the hydraulic torque converter with the axial head direction downward on the tray, and the tray drives the hydraulic torque converter to run to the feeding station;

[0009] The clamping and oil control step includes:

[0010] After the feeding step, control the clamping jaw of the transfer manipulator to clamp the hydraulic torque converter above the oil receiving tray, and rotate the hydraulic torque converter by 180° for oil control;

[0011] The moving and buffering step includes:

[0012] Transfer the oil-controlled hydraulic torque converter to the first alignment device;

[0013] The square key adjustment step includes:

[0014] Control the second alignment device to align the position of the square key of the transmission;

[0015] The scanning and picking steps include:

[0016] Scan the QR code of the torque converter on the first alignment device. After scanning, rotate the assembly manipulator to pick up the torque converter on the first alignment device.

[0017] The assembly steps include:

[0018] After the scanning and picking steps, rotate the assembly manipulator to drive the torque converter to dock and assemble in place with the first spline, second spline, and square key of the gearbox. After assembly, the assembled gearbox and torque converter are transported to the designated qualified product position along the gearbox conveyor line.

[0019] Furthermore, the moving and buffering steps include:

[0020] After the torque converter oil control is completed, check whether there is a torque converter on the first alignment device. If not, the gripper of the transfer manipulator places the torque converter on the first alignment device.

[0021] Otherwise, the gripper of the transfer manipulator places the torque converter on the buffer table. When it is detected that there is no torque converter on the first alignment device, transfer the torque converter on the buffer table to the first alignment device.

[0022] Furthermore, the square key adjustment steps include:

[0023] Place the gearbox on the gearbox conveyor line. The gearbox is transported to the lower part of the second alignment device. The first lifting device drives the second alignment device to move downward. The second alignment device aligns the position of the square key of the gearbox. After alignment, the first lifting device drives the second alignment device to move upward and return to the original position.

[0024] Furthermore, the scanning and picking steps include:

[0025] The adjusted gearbox runs along the gearbox conveyor line to the assembly position. The transverse movement device drives the rotary assembly manipulator to move towards the first alignment device. After reaching above the first alignment device, the barcode scanner on the rotary assembly manipulator automatically scans the QR code of the torque converter on the first alignment device. After successful scanning, the rotary assembly manipulator moves downward to pick up the torque converter on the first alignment device and enters the assembly steps.

[0026] If the scanning is not successful, the transverse movement device drives the rotary assembly manipulator to return to the assembly position. The gripper of the transfer manipulator opens, picks up the torque converter that has not been successfully scanned, moves above the oil drain pan, the gripper of the transfer manipulator rotates the torque converter by 180°, places the torque converter on the unqualified material track, then picks up the torque converter from the buffer table again and moves it to the first alignment device for scanning again.

[0027] Further, the assembly steps include:

[0028] After the scanning and picking step, the transverse movement device drives the rotary assembly manipulator and the torque converter to move towards the adjusted gearbox. The rotary assembly manipulator drives the torque converter to move downward and rotate, and dock with the first spline of the gearbox. After docking in place, it docks with the second spline of the gearbox. After successful docking, it docks with the square key of the gearbox until the first spline, second spline, and square key of the gearbox and the torque converter are all assembled in place. The assembled gearbox and torque converter are transported to the designated qualified product position along with the gearbox conveyor line. At the same time, the rotary assembly manipulator moves upward to its original position;

[0029] If the square key or any spline is not assembled in place, the rotary assembly manipulator moves upward to its original position, and the gearbox and the torque converter are transported to the designated unqualified product position along with the gearbox conveyor line.

[0030] Adopting the above technical solutions, compared with the prior art, the present invention has the following advantages: In the present invention, the torque converter shaft head is placed downward on the tray, which is consistent with the incoming material packaging direction of the torque converter, avoiding manual flipping of the torque converter. Only manual feeding of the torque converter onto the tray is required, greatly reducing the labor intensity of the operator;

[0031] A transfer manipulator jaw and an oil receiving tray are provided. The transfer manipulator jaw picks up the torque converter for oil control, which can reduce the work intensity brought by manual oil control. The oil receiving tray prevents oil from dripping onto the ground. At the same time, the oil receiving tray can collect and filter the oil for reuse, reducing the cost of the gearbox oil;

[0032] The torque converter is loaded onto the production line using a tray with the shaft head facing downward and the oil port facing upward, avoiding the situation of oil dripping downward in the traditional assembly with the oil port facing downward and reducing potential safety hazards;

[0033] The transportation of the torque converter and the assembly of the torque converter are carried out simultaneously, improving production efficiency;

[0034] A detachable quick-change head is provided on the tray. When the torque converter needs to be changed in model, only the quick-change head needs to be replaced, enabling rapid model change;

[0035] The transfer manipulator jaw picks up the outer periphery of the torque converter, replacing the traditional jaw that picks up the shaft head position. It can be compatible with more models of torque converters, avoiding frequent replacement of the jaw due to changes in the shaft head structure and size of the torque converter, increasing the manufacturing cost of the jaw, and at the same time increasing the jaw replacement time and causing waste of production capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic structural diagram of the automatic assembly process of the torque converter in the embodiment of the present invention;

[0037] Figure 2 is Figure 1 The enlarged structural schematic diagram at position A in

[0038] Figure 3 The structural schematic diagram of the tray in the embodiment of the present invention;

[0039] Figure 4 The structural schematic diagram of the tray and the torque converter in the embodiment of the present invention;

[0040] Figure 5 The structural schematic diagram of the buffer table in the embodiment of the present invention;

[0041] Figure 6 The structural schematic diagram of the rotary assembly manipulator in the embodiment of the present invention;

[0042] Figure 7 The structural schematic diagram of the manipulator gripper in the embodiment of the present invention;

[0043] Figure 8 The top view of the manipulator gripper in the embodiment of the present invention;

[0044] Figure 9 The structural schematic diagram of the assembly structure of the torque converter and the gearbox in the embodiment of the present invention;

[0045] Figure 10 The flow chart of the automatic assembly process of the torque converter in the embodiment of the present invention.

[0046] In the figure: 1 - The first alignment device, 2 - The second alignment device, 3 - The rotary assembly manipulator, 4 - The first rack, 5 - The buffer table, 6 - The first lifting device, 7 - The torque converter conveying line body, 8 - The tray, 9 - The transverse movement device, 10 - The groove, 11 - The support column, 12 - The base, 13 - The quick-change head, 14 - The torque converter, 15 - The first bracket, 16 - The oil receiving box, 17 - The first connecting rod, 19 - The rubber pad, 20 - The second connecting rod, 21 - The positioning seat, 22 - The first photoelectric switch, 23 - The second bracket, 24 - The clamping plate, 25 - The oil receiving tray, 26 - The gearbox, 27 - The servo reduction motor, 28 - The first switch bracket, 29 - The second switch bracket, 32 - The first induction block, 33 - The second induction block, 34 - The lifting cylinder, 35 - The anti-rotation block, 36 - The rotating belt, 37 - The first connecting plate, 38 - The rotary assembly manipulator gripper, 40 - The transfer manipulator gripper, 41 - The induction plate, 42 - The air gripper, 43 - The second photoelectric switch, 44 - The fourth switch bracket, 45 - The proximity switch, 46 - The mounting plate, 47 - The second connecting plate, 50 - The gearbox conveying line body, 51 - The second rack, 52 - The second lifting device, 53 - The detection switch, 54 - The non-conforming material channel, 55 - The driving pulley, 56 - The driven pulley, 58 - The first spline, 59 - The second spline, 60 - The square key. Detailed Embodiments

[0047] The following further describes the detailed embodiments of the present invention in conjunction with the accompanying drawings. It should be noted here that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation on the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0048] Embodiment, as Figures 1 - 10 shown, the automatic assembly process of the hydraulic torque converter includes a hydraulic torque converter conveying line 7, a gearbox conveying line 50 and a rotary assembly manipulator 3. The hydraulic torque converter conveying line 7 is arranged in parallel with the gearbox conveying line 50. The hydraulic torque converter conveying line 7 is used to convey the hydraulic torque converter 14, and the gearbox conveying line 50 is used to convey the gearbox 26. A tray 8 is arranged on the hydraulic torque converter conveying line 7. There are a transfer manipulator jaw 40, a first alignment device 1 and several buffer tables 5 between the hydraulic torque converter conveying line 7 and the gearbox conveying line 50. There are six buffer tables 5 in this example. An oil receiving tray 25 is arranged below the buffer table 5. The first alignment device 1 is on the side close to the gearbox conveying line 50. A sensor (not shown in the figure) is arranged on the first alignment device 1 to detect whether there is a hydraulic torque converter 14 on the first alignment device 1. An unqualified material channel 54 is arranged between the hydraulic torque converter conveying line 7 and the buffer table 5.

[0049] The first alignment device 1 is used for preliminary alignment of the spline to prevent skew. The first alignment device 1 is a prior art and will not be elaborated here in detail.

[0050] One end of the gearbox conveying line 50 is provided with a first frame 4. A transverse movement device 9 is arranged on the first frame 4. A second lifting device 52 is arranged on the transverse movement device 9. The rotary assembly manipulator 3 is arranged on the second lifting device 52. The transverse movement device 9 drives the rotary assembly manipulator 3 to move horizontally, and the second lifting device 52 drives the rotary assembly manipulator 3 to move vertically.

[0051] A second frame 51 is also arranged on the gearbox conveying line 50. A first lifting device 6 is arranged on the second frame 51. A second alignment device 2 is arranged on the first lifting device 6. The second alignment device 2 performs preliminary alignment of the square key to prevent skew. The second alignment device 2 is a prior art and will not be elaborated here in detail.

[0052] The tray 8 includes a base 12. A quick-change head 13 is detachably arranged on the base 12. A number of support columns 11, four in this example, are evenly arranged on the outer periphery of the quick-change head 13. The support columns 11 are used to support the hydraulic torque converter 14. A groove 10 is arranged on the quick-change head 13. The groove 10 is clamped with the hydraulic torque converter 14. The tray 8 is used to fix the hydraulic torque converter 14, and the hydraulic torque converter 14 is transported to a designated position through the hydraulic torque converter conveying line 7.

[0053] The buffer table 5 includes a first support 15. An oil receiving box 16 is provided at the top of the first support 15. One end of the oil receiving box 16 is open, so that the oil flowing out of the torque converter 14 flows through the oil receiving box 16 into an oil receiving tray 25 provided below the buffer table 5. A positioning seat 21 is provided on the first support 15. The positioning seat 21 penetrates through the oil receiving box 16 to position and buffer the torque converter 14. A rubber pad 19 is also provided between the first support 15 and the positioning seat 21. A first connecting rod 17 is vertically provided on the upper part of the first support 15. The other end of the first connecting rod 17 is vertically provided with a second connecting rod 20. The upper end of the second connecting rod 20 is fixedly provided with a first photoelectric switch 22. The first photoelectric switch 22 is used to detect whether the torque converter 14 has been placed on the buffer table 5.

[0054] The buffer table 5 can adopt various arrangement modes, as long as it is within the operating range of the transfer manipulator jaw 40.

[0055] The rotary assembly manipulator 3 includes a second support 23. A servo reduction motor 27, a lifting cylinder 34, an anti-rotation block 35, a first switch support 28 and a second switch support 29 are provided on the second support 23. A second connecting plate 47 is provided below the lifting cylinder 34. The lifting cylinder 34 drives the second connecting plate 47 to move up and down. A first sensing block 32 is provided on the first switch support 28. The first sensing block 32 is used to sense whether the first spline 58 is assembled in place. A second sensing block 33 is provided on the second switch support 29. The second sensing block 33 is used to sense whether the second spline 59 is assembled in place.

[0056] A driving pulley 55 and a driven pulley 56 are provided below the first switch support 28. The driving pulley 55 and the driven pulley 56 are connected to the servo reduction motor 27. The driving pulley 55 and the driven pulley 56 are connected and driven by a rotating belt 36. A first connecting plate 37 is provided below the driving pulley 55. A detection switch 53 is provided on the first connecting plate 37. A rotary assembly manipulator jaw 38 is provided below the first connecting plate 37. The rotary assembly manipulator jaw 38 is used to grab the torque converter 14. The detection switch 53 is used to detect whether the rotary assembly manipulator jaw 38 has grabbed the torque converter 14.

[0057] A barcode scanner (not shown in the figure) is provided on the rotary assembly manipulator 3, which is used to scan the two-dimensional code of the torque converter 14 on the first alignment device 1.

[0058] When the rotary assembly manipulator 3 assembles the torque converter 14, the servo reduction motor 27 rotates, driving the driving pulley 55 and the driven pulley 56 to rotate. At the same time, the lifting cylinder 34 pushes the second connecting plate 47 to lift and lower, so that the rotary assembly manipulator 3 rotates and assembles downward.

[0059] The transfer manipulator jaw 40 is used to grip the outer periphery of the hydraulic torque converter 14, and includes a pneumatic jaw 42, a mounting plate 46, and a clamping plate 24 disposed on the pneumatic jaw 42. The pneumatic jaw 42 is disposed on the mounting plate 46. A fourth switch bracket 44 is provided on the mounting plate 46, and a proximity switch 45 is provided on the fourth switch bracket 44. An induction plate 41 is further provided on the pneumatic jaw 42. The proximity switch 45 is used to sense the opening and closing of the clamping plate 24. A second photoelectric switch 43 is provided on the mounting plate 46, and the second photoelectric switch 43 is used to detect whether the transfer manipulator jaw 40 grips the hydraulic torque converter 14.

[0060] The automatic assembly process of the hydraulic torque converter includes a hydraulic torque converter conveying step and a hydraulic torque converter assembling step. The hydraulic torque converter conveying step includes the following steps:

[0061] Loading step:

[0062] Place the hydraulic torque converter 14 with the shaft head facing down on the tray 8, and the tray 8 drives the hydraulic torque converter 14 to run to the loading station.

[0063] Gripping and oil control step:

[0064] The transfer manipulator jaw 40 opens, moves variably to the hydraulic torque converter 14, controls the transfer manipulator jaw 40 to grip the hydraulic torque converter 14 and move variably above the oil receiving tray 25, and rotates the hydraulic torque converter 14 by 180° for oil control.

[0065] Moving and buffering step:

[0066] After the oil control of the hydraulic torque converter 14 is completed, it is detected whether there is a hydraulic torque converter (14) on the first alignment device 1. If not, the transfer manipulator jaw 40 places the hydraulic torque converter 14 on the first alignment device 1. Otherwise, the transfer manipulator jaw 40 places the hydraulic torque converter 14 on the buffer table 5. When it is detected that there is no hydraulic torque converter (14) on the first alignment device 1, the hydraulic torque converter 14 on the buffer table 5 is moved to the first alignment device 1.

[0067] The automatic assembly process of the hydraulic torque converter includes a hydraulic torque converter conveying step and a hydraulic torque converter assembling step. The hydraulic torque converter assembling step includes the following steps:

[0068] Square key adjustment step:

[0069] Place the gearbox 26 on the gearbox conveying line body 50, and the gearbox 26 is conveyed to the lower part of the second alignment device 2. The first lifting device 6 drives the second alignment device 2 to move downward, and the square key 60 position of the gearbox 26 is preliminarily aligned by rotating the second alignment device 2. After alignment, the first lifting device 6 moves upward to return to the original position.

[0070] Scanning and gripping step:

[0071] The adjusted transmission 26 runs to the assembly position along the transmission conveyor line 50. The transverse movement device 9 drives the rotary assembly manipulator 3 to move towards the first alignment device 1. After reaching above the first alignment device 1, the barcode scanner on the rotary assembly manipulator 3 automatically scans the QR code of the torque converter 14 on the first alignment device 1. After successful scanning, the rotary assembly manipulator 3 moves downward, grabs the torque converter 14 on the first alignment device 1, and enters the assembly step;

[0072] If the scanning is unsuccessful, the transverse movement device 9 drives the rotary assembly manipulator 3 to return to the assembly position. The gripper 40 of the transfer manipulator opens, grabs the torque converter 14 that has not been successfully scanned, moves variably to above the oil pan 25, the gripper 40 of the transfer manipulator rotates the torque converter 14 by 180°, places the torque converter 14 on the unqualified material channel 54, then grabs the torque converter 14 again from the buffer table 5 and moves it to the first alignment device 1, and scans the code again.

[0073] Assembly steps:

[0074] The transverse movement device 9 drives the rotary assembly manipulator 3 and the torque converter 14 to move towards the adjusted transmission 26. The rotary assembly manipulator 3 drives the torque converter 14 to move downward and rotate, and docks with the first spline 58 of the transmission 26. After docking in place, it docks with the second spline 59 of the transmission 26. After successful docking, it docks with the square key 60 of the transmission 26 until the first spline 58, the second spline 59, and the square key 60 of the transmission 26 and the torque converter 14 are all assembled in place. The assembled transmission 26 and the torque converter 14 are transported to the designated qualified product position along the transmission conveyor line 50. At the same time, the rotary assembly manipulator 3 moves upward to the original position. If the square key 60 or any spline is not assembled in place, the subsequent splines or the square key 60 will not be assembled continuously. The rotary assembly manipulator 3 moves upward to the original position, and the transmission 26 and the torque converter 14 are transported to the designated unqualified product position along the transmission conveyor line 50.

[0075] In the present invention, the torque converter 14 is placed with its shaft head facing downward on the tray 8, which is consistent with the incoming packaging direction of the torque converter 14, avoiding manual flipping of the torque converter 14. Only manual feeding of the torque converter 14 onto the tray 8 is required, greatly reducing the labor intensity of the operator;

[0076] The transfer manipulator gripper 40 and the oil pan 25 are provided. The transfer manipulator gripper 40 grabs the torque converter 14 for oil control, which can reduce the work intensity brought by manual oil control. The oil pan 25 prevents oil from dripping to the ground. At the same time, the oil pan 25 can collect and filter the oil for reuse, reducing the cost of the transmission oil;

[0077] When the torque converter 14 is put on the production line, a tray 8 is used. The direction is with the shaft head downward and the oil port upward, which avoids the situation of oil dripping downward from the oil port in traditional assembly and reduces potential safety hazards.

[0078] The transportation of the torque converter 14 and the assembly of the torque converter 14 are carried out simultaneously, improving production efficiency.

[0079] A detachable quick-change head 13 is provided on the tray 8. When the model of the torque converter 14 needs to be changed, only the quick-change head 13 needs to be replaced, and the model change is rapid.

[0080] The transfer manipulator jaw 40 grabs the outer periphery of the torque converter 14, replacing the traditional jaw that grabs the shaft head position. It can be compatible with more models of torque converters 14, avoiding frequent replacement of the jaw due to changes in the shaft head structure and size of the torque converter 14, increasing the manufacturing cost of the jaw, and at the same time increasing the jaw replacement time and causing waste of production capacity.

[0081] The embodiments of the present invention have been described in detail in conjunction with the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, without departing from the principle and spirit of the present invention, various changes, modifications, substitutions, and variations made to these embodiments still fall within the protection scope of the present invention.

Claims

1. The automatic assembly process of a torque converter, characterized in that: It includes a feeding step, a clamping and oil control step, a moving and buffering step, a square key adjustment step, a scanning and clamping step, and an assembly step: The feeding step includes: Place the shaft end of the torque converter (14) downward on the tray (8), and the tray (8) drives the torque converter (14) to run to the feeding station; The clamping and oil control step includes: After the feeding step, control the transfer manipulator gripper (40) to clamp the torque converter (14) above the oil receiving tray (25), and rotate the torque converter (14) by 180° to control the oil; The moving and buffering step includes: Transfer the oil-controlled torque converter (14) to the first alignment device (1); The square key adjustment step includes: Control the second alignment device (2) to align the position of the square key (60) of the gearbox (26); The scanning and clamping step includes: Scan the QR code of the torque converter (14) on the first alignment device (1). After scanning, rotate the assembly manipulator (3) to clamp the torque converter (14) on the first alignment device (1); The assembly step includes: After the scanning and clamping step, rotate the assembly manipulator (3) to drive the torque converter (14) to dock and assemble with the first spline (58), the second spline (59), and the square key (60) of the gearbox (26). After assembly, the assembled gearbox (26) and the torque converter (14) are transported to the specified qualified product position along the gearbox conveyor line body (50); in this step, after the scanning and clamping step, the transverse movement device (9) drives the rotation assembly manipulator (3) and the torque converter (14) to move towards the adjusted gearbox (26). The rotation assembly manipulator (3) drives the torque converter (14) to move downward and rotate, and dock with the first spline (58) of the gearbox (26). After docking in place, it docks with the second spline (59) of the gearbox (26). After successful docking, it docks with the square key (60) of the gearbox (26) until the first spline (58), the second spline (59), and the square key (60) of the gearbox (26) and the torque converter (14) are all assembled in place. The assembled gearbox (26) and the torque converter (14) are transported to the specified qualified product position along the gearbox conveyor line body (50), and at the same time, the rotation assembly manipulator (3) moves upward to the original position; If the square key (60) or any spline fails to be assembled in place, the rotation assembly manipulator (3) moves upward to the original position, and the gearbox (26) and the torque converter (14) are transported to the specified unqualified product position along the gearbox conveyor line body (50).

2. The automatic assembly process of the hydraulic torque converter according to claim 1, characterized in that: The moving and buffering step includes: After the torque converter (14) is oil-controlled, detect whether there is a torque converter (14) on the first alignment device (1). If not, the transfer manipulator gripper (40) places the torque converter (14) on the first alignment device (1); Otherwise, the transfer manipulator gripper (40) places the torque converter (14) on the buffer table (5). When it is detected that there is no torque converter (14) on the first alignment device (1), the torque converter (14) on the buffer table (5) is transferred to the first alignment device (1).

3. The automatic assembly process of the hydraulic torque converter according to claim 1, characterized in that: The square key adjustment step includes: Place the transmission (26) on the transmission conveyor line body (50). The transmission (26) is conveyed below the second alignment device (2). The first lifting device (6) drives the second alignment device (2) to move downward. The second alignment device (2) aligns the position of the square key (60) of the transmission (26). After alignment, the first lifting device (6) drives the second alignment device (2) to move upward and return to the original position.

4. The automatic assembly process of the hydraulic torque converter according to claim 1, characterized in that: The scanning and gripping steps include: The adjusted transmission (26) runs to the assembly position along with the transmission conveyor line body (50). The transverse movement device (9) drives the rotary assembly manipulator (3) to move towards the first alignment device (1). After reaching above the first alignment device (1), the barcode scanner on the rotary assembly manipulator (3) automatically scans the QR code of the hydraulic torque converter (14) on the first alignment device (1). After successful scanning, the rotary assembly manipulator (3) moves downward and grips the hydraulic torque converter (14) on the first alignment device (1) to enter the assembly step; If the scanning is unsuccessful, the transverse movement device (9) drives the rotary assembly manipulator (3) to return to the assembly position. The transfer manipulator gripper (40) opens, grips the hydraulic torque converter (14) that has not been successfully scanned, moves above the oil drain pan (25), rotates the hydraulic torque converter (14) by 180°, places the hydraulic torque converter (14) on the unqualified material channel (54), then grips the hydraulic torque converter (14) again from the buffer table (5) and moves it to the first alignment device (1) for scanning again.

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