Post-processing system for differential production

Abstract

The invention relates to a post-processing system for differential production, and belongs to the technical field of differential production, the post-processing system for differential production comprises a cleaning machine, an oil immersion machine, a posture adjusting device and a transfer device, the posture adjusting device comprises a first station and a second station, the first station is used for adjusting the positions of two openings in the differential shell, the first station comprises a first placement seat and a detection mechanism, the detection mechanism is used for detecting the existence of two opposite sides of the differential shell on the first placement seat and an outer gear ring, and the second station is used for adjusting the axis direction of the differential shell. When the differential mechanism is located on the second station, the axis direction of the differential mechanism shell is parallel to the horizontal direction, and the two openings in the differential mechanism shell are arranged in the vertical direction. The method has the advantages that the attitude adjustment efficiency when the differential enters different links is improved to a certain extent, and the machining efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile differential production, in particular to a post-processing system for differential production. Background Art

[0002] The differential is an important part of the automobile transmission system. It enables the left and right drive wheels to rotate at different speeds when the car is turning. Figure 1 In the related art, the automobile differential mainly includes a housing 58, a straight shaft 59, planetary gears 60, side shaft gears 61 and an outer ring gear 62. The straight shaft 59 is fixed in the housing 58. Two planetary gears 60 are provided. The two planetary gears 60 are idling at both ends of the straight shaft 59. Two side shaft gears 61 are provided. The two side shaft gears 61 are rotatably connected to the two output ends of the housing 58. Each planetary gear 60 is engaged with the two side shaft gears 61. The inner wall of the side shaft gear 61 is provided with a circle of splines 64 for connecting with the half shaft of the driving wheel. The outer ring gear 62 is fixedly sleeved on the outside of the housing 58, and power can be transmitted to the housing 58 through the outer ring gear 62; in order to facilitate lubrication of the gear set in the housing 58, openings 63 are usually opened on opposite sides of the housing 58.

[0003] During the production process of automobile differentials, the differentials need to be post-processed after assembly. The post-processing process mainly includes cleaning and rust prevention. The axial direction, opening position and other postures of the differentials in the cleaning and rust prevention stages are often different. However, in the current post-processing system, the posture adjustment efficiency of the differentials when entering different stages is low, resulting in reduced processing efficiency. Summary of the Invention

[0004] In order to improve the posture adjustment efficiency of the differential when entering different links to a certain extent and help improve the processing efficiency, the present invention provides a post-processing system for differential production.

[0005] The present invention provides a post-processing system for differential production using the following technical solutions: A post-processing system for differential production, comprising: A cleaning machine, wherein the cleaning machine is used to clean the differential; An oil immersion machine, which is used to oil-seal the differential after cleaning; A posture adjustment device, the posture adjustment device is used to assist in adjusting the posture of the differential, the posture adjustment device includes a first station and a second station, the first station is used to adjust the position of two openings on the differential housing, the first station includes a first placement seat and a detection mechanism, the detection mechanism is used to detect the presence of opposite sides of the differential housing and the outer ring gear on the first placement seat, and the second station is used to adjust the axial direction of the differential housing. When the differential is located in the second station, the axial direction of the differential housing is parallel to the horizontal direction, and the two openings on the differential housing are arranged in the vertical direction; a transfer device, the transfer device being used to transfer the differential; The assembled differential passes through the transfer device in sequence through a cleaning machine, a first station, a second station and an oil immersion machine.

[0006] Preferably, the detection mechanism includes a first stand, a mounting seat, a first photoelectric sensor group and a second photoelectric sensor group. The mounting seat is arranged on the first stand, and the first photoelectric sensor group and the second photoelectric sensor group are both installed on the mounting seat. The first photoelectric sensor group is used to detect the presence of the differential outer ring gear, and the second photoelectric sensor group is used to detect the presence of opposite sides of the differential housing.

[0007] Preferably, the mounting seat is slidably arranged on the first upright seat in the vertical direction, the first upright seat is provided with a first driving member for driving the mounting seat to slide, two sliding seats are provided on the mounting seat for relative sliding in the horizontal direction, the mounting seat is provided with a second driving member for driving the two sliding seats to approach or move away from each other, the second photoelectric sensor group includes a second photoelectric sensor, the second photoelectric sensor corresponds one-to-one to the sliding seat, the second photoelectric sensor is arranged on the corresponding sliding seat, the sliding seat is provided with a support rod, the first photoelectric sensor group includes a first photoelectric sensor, the first photoelectric sensor corresponds one-to-one to the support rod, the first photoelectric sensor is provided on the corresponding support rod, the optical axis of the first photoelectric sensor is perpendicular to the optical axis of the second photoelectric sensor, and the optical axis of the first photoelectric sensor is parallel to the sliding direction of the sliding seat.

[0008] Preferably, the cleaning machine has an operating port for placing or taking out the differential, a cleaning disc is arranged in the cleaning machine for rotating in the vertical direction, a fourth driving member is arranged in the cleaning machine for driving the cleaning disc to rotate, a plurality of cleaning seats are arranged on the cleaning disc for rotating in the vertical direction, each of the cleaning seats is provided with a plurality of cleaning gear rods, and the plurality of cleaning gear rods are used to engage with the splines in the differential half-shaft gear, and a fifth driving member is provided in the cleaning machine for driving the cleaning seat to rotate.

[0009] Preferably, a locking seat is slidably arranged at the operation opening of the cleaning machine, the sliding direction of the locking seat is perpendicular to the rotation axis of the cleaning seat, the locking seat is used to abut against the cleaning seat at the operation opening to inhibit the rotation of the cleaning seat, and a sixth driving member is arranged in the cleaning machine and used to drive the locking seat to slide towards or away from the cleaning seat at the operation opening.

[0010] Preferably, the post-processing system further comprises a drying machine used to dry the differential mechanism, a drying seat used to place the differential mechanism is rotationally arranged in the drying machine, a plurality of drying toothed rods are arranged on the drying seat, the plurality of drying toothed rods are all used to mesh with the spline in the differential mechanism half axle gear, and a seventh driving member used to drive the rotation of the drying seat is arranged in the drying machine; the posture adjusting device further comprises a third station, the third station comprises a support seat, a third placing seat rotationally arranged on the support seat, a plurality of drying toothed rods arranged on the third placing seat, and an anti-rotation member arranged on the support seat, the rotation axis of the third placing seat is arranged in a vertical direction, the plurality of drying toothed rods are all used to mesh with the spline in the differential mechanism half axle gear, and the anti-rotation member is used to lock or unlock the third placing seat.

[0011] Preferably, the transferring device comprises a first robot and a second robot, the execution end of the first robot and the second robot is provided with a mounting plate, the mounting plate is provided with a rotating clamp and a transferring clamp, the rotating clamp is used to clamp the outer gear ring of the differential mechanism to drive the differential mechanism to rotate along the axis of the differential mechanism, and the transferring clamp is used to clamp the outer gear ring of the differential mechanism to move the differential mechanism, the mounting plate of the second robot is provided with a flat opening clamp, and the flat opening clamp is used to clamp the two output ends of the differential mechanism shell to transfer the differential mechanism.

[0012] Preferably, the rotating clamp comprises a mounting disc rotationally arranged on the corresponding mounting plate, a plurality of guide mounting rods slidably arranged on the mounting disc, a centering clamp arranged below the plurality of guide mounting rods, and a third driving member arranged above the mounting plate, the rotation axis of the mounting disc is perpendicular to the plane of the corresponding mounting plate, the sliding direction of the guide mounting rod is parallel to the rotation axis of the mounting disc, the mounting disc and the centering clamp are concentrically arranged, and the third driving member is used to drive the rotation of the mounting disc.

[0013] Preferably, the mounting plate of the second robot is cross-shaped, the flat opening clamp of the second robot is provided with two, the rotating clamp, the transferring clamp and the two flat opening clamps of the second robot are respectively located at the four end portions of the mounting plate of the second robot, and the distance from the transferring clamp to the center of the mounting plate, the distance from the flat opening clamp to the center of the mounting plate, and the distance from the rotating clamp to the center of the mounting plate decrease in sequence.

[0014] Preferably, the post-processing system also includes a loading bin, a sampling bin, a code scanning device and a loading bin. The loading bin is used to store the assembled differentials. The loading bin has multiple first placement stations, and the multiple first placement stations are arranged in a matrix. The sampling bin has multiple second placement stations, and the multiple second placement stations are arranged in a matrix, and the number of rows of the multiple second placement stations is less than or equal to two rows. The code scanning device is used to scan the identification code on the differential. The loading bin is used to store the differential after post-processing. The assembled differential passes through the loading bin, the sampling bin, the code scanning device, the sampling bin, the cleaning machine, the first station, the second station, the oil immersion machine, the second station, the third station, the dryer and the loading bin in sequence through the first robot and the second robot.

[0015] In summary, the present invention has the following beneficial technical effects: During operation, the differential is moved to a cleaning machine for cleaning by a transfer device. After cleaning, the differential in the cleaning machine is moved to the first station of the posture adjustment device by the transfer device, and the differential position is adjusted until the detection mechanism detects the presence of the differential outer ring gear but does not detect the presence of the opposite sides of the differential housing, indicating that the two opposite openings on the differential housing have been moved to the desired positions. The differential adjusted at the first station is then moved to the second station by the transfer device, so that the axis of the differential housing is horizontal and the two openings on the differential housing are distributed vertically. The differential is then kept in the second station by the transfer device and moved to the oil immersion machine for oil sealing. After the oil seal anti-rust treatment is completed, the differential is removed by the transfer device. The present invention can quickly adjust the posture of the differential after the cleaning step to the posture in the oil immersion step by providing the first and second stations and cooperating with the transfer device. This improves the posture adjustment efficiency of the differential when entering different steps to a certain extent, which helps to improve processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of a differential in the related art.

[0017] Figure 2 It is a schematic diagram of the overall structure of Example 1 of the present invention.

[0018] Figure 3 It is a schematic diagram of the overall structure of the posture adjustment device in Example 1 of the present invention.

[0019] Figure 4 It is a schematic diagram of the overall structure of the loading bin in Example 1 of the present invention.

[0020] Figure 5 It is a schematic diagram of the overall structure of the sampling silo in Example 1 of the present invention.

[0021] Figure 6 is the overall structure schematic diagram of the code scanning device in embodiment 1 of the present application.

[0022] Figure 7 is the overall structure schematic diagram of the cleaning machine in embodiment 1 of the present application.

[0023] Figure 8 is the overall structure exploded view of the cleaning seat and the locking seat in embodiment 1 of the present application.

[0024] Figure 9 is the overall structure schematic diagram of the detection mechanism in embodiment 1 of the present application.

[0025] Figure 10 is the overall structure schematic diagram of the third station in embodiment 1 of the present application.

[0026] Figure 11 is the overall structure schematic diagram of the oil immersion machine and the drying machine in embodiment 1 of the present application.

[0027] Figure 12 is the overall structure schematic diagram of the first robot in embodiment 1 of the present application.

[0028] Figure 13 is the overall structure schematic diagram of the upper clamping jaw of the first robot in embodiment 1 of the present application.

[0029] Figure 14 is the overall structure schematic diagram of the second robot in embodiment 1 of the present application.

[0030] Figure 15 is the overall structure schematic diagram of the upper clamping jaw of the second robot in embodiment 1 of the present application.

[0031] Figure 16 is the overall structure schematic diagram of the second station in embodiment 2 of the present application.

[0032] Figure 17 is the partial structure sectional view of the second station in embodiment 2 of the present application.

[0033] Figure 18 is Figure 17 the enlarged view of part A.

[0034] Explanation of the accompanying symbols: 1. Cleaning machine; 2. Oil immersion machine; 3. First workstation; 31. First placement seat; 32. Detection mechanism; 321. First stand; 322. Mounting seat; 323. First photoelectric sensor group; 324. Second photoelectric sensor group; 33. Driving source; 4. Second workstation; 41. Second stand; 42. Second placement seat; 43. Support table; 5. Sliding seat; 6. Support rod; 7. Operation port; 8. Cleaning tray; 9. Cleaning seat 10. Cleaning the toothed rod; 11. Locking seat; 12. Sixth driving member; 13. Drying machine; 14. Drying seat; 15. Drying the toothed rod; 16. Third station; 161. Support seat; 162. Third placement seat; 163. Drying the fixed toothed rod; 17. First robot; 18. Second robot; 19. Mounting plate; 20. Rotating clamp; 201. Mounting plate; 202. Guide mounting rod; 203. Centering clamp; 204. Third driving member Components; 21. Transfer gripper; 22. Flat-open gripper; 23. Loading bin; 231. Loading rack; 232. Placement table; 24. Sampling bin; 25. Barcode scanning device; 251. Barcode scanning rack; 252. Barcode scanning seat; 253. Barcode scanner; 26. Unloading bin; 27. First placement station; 28. Second placement station; 29. ​​Integrated table; 30. Support rod; 34. Coupling claw; 37. First screw rod; 38. First hand wheel; 39. Bidirectional screw rod; 40. Second hand wheel; 44. Oil immersion seat; 45. First support plate; 46. Second support plate; 47. Transmission block; 48. Cleaning sponge; 49. Reciprocating screw; 50. Fixed plate; 51. Sliding plate; 52. Guide rod; 53. Push spring; 54. Gear; 55. Rack; 56. Ratchet; 57. Pawl; 58. Housing; 59. Slotted shaft; 60. Planetary gear; 61. Axle gear; 62. Outer ring gear; 63. Opening; 64. Spline. DETAILED DESCRIPTION

[0035] The following combination Figure 2-Figure 18 The present invention is described in further detail.

[0036] Example 1:

[0037] The embodiment of the present invention discloses a post-processing system for differential production. Figure 2The post-processing system for differential production includes a loading bin 23, a sampling bin 24, a code scanning device 25, a cleaning machine 1, an oil immersion machine 2, a drying machine 13, a posture adjustment device, a loading bin 26 and a transfer device; wherein, the loading bin 23 is used to store the assembled differentials, the sampling bin 24 is used to temporarily store the differentials, the code scanning device 25 is used to scan the identification code on the differentials, the cleaning machine 1 is used to clean the differentials, the oil immersion machine 2 is used to oil seal the differentials after cleaning, the posture adjustment device is used to assist in adjusting the posture of the differentials, the drying machine 13 is used to dry the differentials after oil immersion, the loading bin 26 is used to store the post-processed differentials, and the transfer device is used to transfer the differentials.

[0038] Reference Figure 2 and Figure 3 Furthermore, the posture adjustment device includes an integrated platform 29, a first workstation 3, a second workstation 4 and a third workstation 16. The integrated platform 29 is placed on the ground. The first workstation 3 is used to adjust the positions of the openings 63 on the opposite sides of the differential housing 58. Specifically, the first workstation 3 includes a first placement seat 31 and a detection mechanism 32. The first placement seat 31 is set on the integrated platform 29 for placing the differential. The detection mechanism 32 is set on the integrated platform 29. The detection mechanism 32 is used to detect the presence of the opposite sides of the differential housing 58 and the outer ring gear 62 on the first placement seat 31.

[0039] Reference Figure 2 and Figure 3 The second station 4 is located on the integrated table 29 and is used to adjust the axis of the differential housing 58. The axis of the differential housing 58 located on the second station 4 is parallel to the horizontal direction, and the two openings 63 on the differential housing 58 are arranged in the vertical direction. The third station 16 is also located on the integrated table 29 and is used to adjust the position of the side gears 61 within the differential to facilitate entry into the dryer 13. The assembled differential is transferred by the transfer device and sequentially passes through the loading bin 23, the sampling bin 24, the code scanning device 25, the sampling bin 24, the cleaning machine 1, the first station 3, the second station 4, the oil immersion machine 2, the second station 4, the third station 16, the dryer 13, and the unloading bin 26.

[0040] Reference Figure 2 and Figure 3 In order to facilitate the realization of production automation, the post-processing system also includes a PLC control platform. The cleaning machine 1, the oil immersion machine 2, the drying machine 13, the code scanning device 25, the detection mechanism 32 and the transfer device are all electrically connected to the PLC control platform.

[0041] During the production of automobile differentials, the assembled differentials will be placed on the loading bin 23, and each assembled differential will be marked with an identification code. The differentials on the loading bin 23 will be transferred to the sampling bin 24 by a transfer device, so that the operators can conduct sampling inspections and judge the assembly quality of the differentials. The differentials on the sampling bin 24 will then be transferred to the code scanning device 25 by the transfer device, and the identification code on the differential will be scanned by the code scanning device 25. After the scanning is completed, the differentials will be moved back to the sampling bin 24 by the transfer device, and then the scanned differentials on the sampling bin 24 will be moved to the cleaning machine 1 by the transfer device for cleaning.

[0042] After cleaning is completed, the differential in the cleaning machine 1 is moved to the first station 3 of the posture adjustment device by the transfer device, and then the differential is adjusted until the presence of the differential outer ring 62 is detected in the detection mechanism 32, and the presence of the opposite sides of the differential housing 58 is not detected, proving that the two relative openings 63 on the differential housing 58 have been moved to the required position at this time; then the differential adjusted on the first station 3 is moved to the second station 4 by the transfer device, so that the axis of the differential housing 58 is horizontal, and the two openings 63 on the differential housing 58 are distributed up and down, and then the differential is kept in the state of the second station 4 by the transfer device and moved to the oil immersion machine 2 for oil sealing treatment. After the oil seal anti-rust treatment is completed, the differential is moved back to the second station 4 by the transfer device. Since the two openings 63 on the differential housing 58 are distributed up and down, the differential housing 58 will not be oiled.

[0043] Then, the differential on the second station 4 is moved to the third station 16 by the transfer device to adjust the position of the half-shaft gear 61 in the differential. Then, the transfer device moves the differential on the third station 16 to the dryer 13 for drying. After the drying is completed, the differential is moved to the unloading bin 26 by the transfer device, thereby completing the post-processing process. The present invention can quickly adjust the posture of the differential after the cleaning link to the posture in the oil immersion link through the setting of the first station 3 and the second station 4, and the coordinated cooperation of the first station 3 and the second station 4 with the transfer device respectively. Through the cooperation of the third station 16 and the transfer device, the posture of the differential after the oil immersion link can be quickly adjusted to the posture in the drying link, thereby improving the posture adjustment efficiency of the differential when entering different links to a certain extent, which helps to improve processing efficiency.

[0044] Reference Figure 4To facilitate storage of the assembled differential, the loading bin 23 includes a loading rack 231 and a placement platform 232. Two placement platforms 232 are provided, each slidably mounted on the loading rack 231 along its length. The two placement platforms 232 are located at different levels. Each placement platform 232 has multiple first placement stations 27 arranged in a matrix, with the number of rows and columns of the multiple first placement stations 27 on each placement platform 232 exceeding three. Each first placement station 27 supports the differential. When the differential is positioned on a first placement station 27, the axis of the differential housing 58 is vertical. Furthermore, to facilitate movement of the placement platforms 232, the two placement platforms 232 can be manually moved in opposite directions to exchange positions. Alternatively, the two placement platforms 232 can be driven in opposite directions by pneumatic cylinders, electric cylinders, or conveyor chains, etc., without limitation.

[0045] Placing the assembled multiple differentials on the first placement station 27 of the placement table 232 can facilitate the transfer device to pick up materials. At the same time, by exchanging the positions of the two placement tables 232, loading materials on one of the placement tables 232 will not affect the picking up of the differentials on the other placement table 232.

[0046] Reference Figure 2 and Figure 5 To facilitate random inspections of differentials, the inspection hopper 24 is equipped with multiple second placement stations 28, arranged in a matrix. These stations 28 share the same structure as the first placement stations 27. When the differential is positioned on the second placement stations 28, the axis of the differential housing 58 is vertical. Since the differentials in the inspection hopper 24 have already begun post-processing, the inspection hopper 24 does not need to have many second placement stations 28. To minimize space usage, the number of rows of the multiple second placement stations 28 is limited to two. In this embodiment, the number of rows of the multiple second placement stations 28 is two.

[0047] Reference Figure 6 To facilitate scanning the differential, the scanning device 25 includes a scanning frame 251, a scanning seat 252, and a scanner 253. The scanning seat 252 is fixed to the scanning frame 251. When the differential is positioned on the scanning seat 252, the axis of the differential housing 58 is vertical. The scanner 253 is mounted on the scanning frame 251 and located directly above the scanning seat 252. The scanner 253 is electrically connected to the PLC control platform. The specific structure and principle of the scanner 253 are prior art and will not be elaborated here. To determine whether the differential is in place at the scanning device 25, an infrared detector can also be installed on the scanning frame 251.

[0048] The differential on the second placement station 28 is placed on the code scanning seat 252 through the transfer device, and the identification code such as the QR code or DPM code on the differential is scanned by the code scanner 253, so that the information of the differential that is about to be cleaned and rust-proofed can be obtained, so as to improve the quality traceability of the product throughout its life cycle.

[0049] Reference Figure 7 Specifically, the cleaning machine 1 has an operating port 7 for inserting or removing the differential, a cleaning disc 8 is arranged to rotate vertically in the cleaning machine 1, and a fourth driving member is provided in the cleaning machine 1 for driving the cleaning disc 8 to rotate. The fourth driving member can be one of a reduction motor, a servo motor, a drive motor, etc., and is not limited here; the fourth driving member is electrically connected to the PLC control platform.

[0050] Reference Figure 7 and Figure 8 A plurality of cleaning seats 9 are arranged on the cleaning disc 8 so as to rotate in a vertical direction. The cleaning seats 9 are arranged at intervals along the circumference of the cleaning disc 8. When the differential is located on the cleaning seats 9, the axis of the differential housing 58 is in the vertical direction. The cleaning disc 8 is provided with a plurality of support groups, each corresponding to a cleaning seat 9. Each support group includes a plurality of support rods 30 fixed to the cleaning disc 8. The plurality of support rods 30 are arranged at intervals along the circumference of the corresponding cleaning seat 9. A plurality of cleaning rack rods 10 are fixed on each cleaning seat 9. In the embodiment of the present invention, three cleaning rack rods 10 are provided on each cleaning seat 9. The three cleaning rack rods 10 are used to mesh with the splines 64 in the differential side gear 61.

[0051] Reference Figure 7 and Figure 8, multiple cleaning positions are set in the cleaning machine 1, and the cleaning positions correspond one-to-one to the cleaning seats 9 on the cleaning disk 8 located inside the cleaning machine 1, and the cleaning seat 9 located at the operating port 7 is located outside the inside of the cleaning machine 1, so that the differential on the cleaning seat 9 except the operating port 7 can be cleaned; the lower end of the cleaning seat 9 is provided with a matching claw 34 for cooperating with the motor output shaft, and the cleaning machine 1 is provided with a fifth driving member for driving the cleaning seat 9 to rotate. Specifically, the fifth driving member can adopt a driving motor that can be lifted and lowered, or a driving motor that can be moved horizontally. A matching seat for engaging with the matching claw 34 is provided on the output shaft of the driving motor. There are multiple driving motors, and the driving motors correspond one-to-one to the cleaning positions, so as to drive the cleaning seat 9 outside the operating port 7 on the cleaning disk 8 to rotate; the fifth driving member is electrically connected to the PLC control platform. Furthermore, in order to facilitate high-pressure cleaning of the differential, a plurality of high-pressure cleaning groups are provided in the cleaning machine 1. The high-pressure cleaning groups correspond to the cleaning positions one by one. The high-pressure cleaning groups are used to flush the differential on the cleaning seat 9 at the corresponding cleaning position. The high-pressure cleaning group includes a plurality of high-pressure spray heads. The high-pressure spray heads are used to communicate with the external high-pressure cleaning liquid. The high-pressure spray heads are electrically connected to the PLC control platform. Specifically, the structure and principle in the cleaning machine 1 belong to related technologies and will not be elaborated here.

[0052] When in use, after the differential is placed on the cleaning seat 9 at the operating port 7 through the transfer device, the multiple cleaning gear rods 10 on the cleaning seat 9 at the operating port 7 are meshed with the splines 64 inside the differential half-shaft gear 61, completing the loading of the differential at the cleaning machine 1; then the driving motor of the fifth driving member is driven away from the cleaning seat 9 corresponding to the cleaning position, so that the matching seat and the matching claw 34 are disengaged without affecting the rotation of the cleaning disk 8, and then the cleaning disk 8 is driven to rotate by the fourth driving member, so that the cleaning seat 9 on the cleaning disk 8 drives the newly loaded differential to move into the cleaning position inside the cleaning machine 1, and the cleaning seat 9 where the cleaned differential is located is moved to the operating port 7 for unloading; when the differential to be cleaned After the cleaning seat 9 where the device is located moves to the corresponding cleaning position, the driving motor of the fifth driving member is driven close to the cleaning seat 9 of the corresponding cleaning position, so that the matching seat of the driving motor engages with the matching claw 34 on the cleaning seat 9 at the corresponding position, and then the driving motor is started, and the cleaning seat 9 is driven to rotate through the matching seat and the matching claw 34. The cleaning seat 9 drives the half-shaft gear 61 in the differential to rotate through multiple cleaning gear rods 10, while the differential housing 58 does not rotate, so that the planetary gear 60 in the differential also rotates, and the high-pressure spray head in the cleaning position performs high-pressure flushing on the cleaning position differential. Since the gear set in the differential housing 58 is continuously rotated, efficient cleaning can be achieved, and the cleaning effect is good.

[0053] Reference Figure 7 and Figure 8To facilitate the differential to be placed on the cleaning seat 9 at the operation opening 7, the cleaning machine 1 is provided with a guide rail at the operation opening 7, and a locking seat 11 is slidably arranged on the guide rail. The sliding direction of the locking seat 11 is perpendicular to the rotation axis of the cleaning seat 9. The locking seat 11 is located on the side of the cleaning disc 8 away from the inside of the cleaning machine 1, and is used to abut against the cleaning seat 9 at the operation opening 7 to inhibit the rotation of the cleaning seat 9. A sixth driving member 12 is arranged in the cleaning machine 1, and is used to drive the locking seat 11 to slide towards the cleaning seat 9 at the operation opening 7. Specifically, the sixth driving member 12 can be one of a pneumatic cylinder, an electric cylinder and an electric push rod, and is not limited herein. The locking seat 11 is connected with the moving end of the sixth driving member 12. The sixth driving member 12 is electrically connected with the PLC control platform.

[0054] When it is needed to place the differential on the cleaning seat 9 at the operation opening 7, the sixth driving member 12 is started to drive the locking seat 11 to move towards the cleaning seat 9 at the operation opening 7, so that the locking seat 11 abuts against the aligned cleaning seat 9, thereby inhibiting the rotation of the cleaning seat 9 at the operation opening 7, and facilitating the spline 64 of the half shaft gear 61 of the differential to engage with the plurality of cleaning toothed rods 10. When the cleaning disc 8 needs to be rotated, the sixth driving member 12 is started to drive the locking seat 11 to move away from the cleaning seat 9 at the operation opening 7, so that the locking seat 11 is disengaged from the aligned cleaning seat 9, thereby facilitating the rotation of the cleaning disc 8.

[0055] With reference to Figure 3 To facilitate the adjustment of the differential, the first placing seat 31 is arranged in a vertical direction on the integrated table 29. To drive the differential housing 58 to rotate, the end of the first placing seat 31 is used to extend into the output port of the differential housing 58, and the end of the first placing seat 31 can be designed as a taper to improve the friction between the differential housing 58. When the differential is located on the first placing seat 31, the axis of the differential housing 58 is in a vertical direction. A driving source 33 is arranged on the integrated table 29, and is used to drive the first placing seat 31 to rotate. Specifically, the driving source 33 includes a speed reduction motor fixedly installed on the integrated table 29, and the first placing seat 31 is coaxially fixed with the output shaft of the speed reduction motor. In other embodiments, the speed reduction motor can be replaced by a servo motor, a driving motor, etc. The driving source 33 is electrically connected with the PLC control platform.

[0056] In use, the first placing seat 31 is driven by the driving source 33 to rotate, so as to drive the differential to rotate as a whole, thereby facilitating the adjustment of the differential and effectively improving the adjustment efficiency.

[0057] With reference to Figure 3 and Figure 9In order to detect the presence of the differential housing 58 and the outer ring gear 62 on the first placement seat 31, the detection mechanism 32 comprises a first stand 321, a mounting seat 322, a first photoelectric sensor group 323 and a second photoelectric sensor group 324. The first stand 321 is fixedly arranged on the integrated table 29 and located on one side of the first placement seat 31. The mounting seat 322 is arranged on the side of the first stand 321 close to the first placement seat 31. The first photoelectric sensor group 323 and the second photoelectric sensor group 324 are both mounted on the mounting seat 322. The first photoelectric sensor group 323 is used to detect the presence of the differential outer ring gear 62, and the second photoelectric sensor group 324 is used to detect the presence of the differential housing 58.

[0058] By using the first photoelectric sensor group 323 and the second photoelectric sensor group 324 to respectively detect the presence of the differential housing 58 and the outer ring gear 62, it can be determined whether the differential on the first placement seat 31 is adjusted to the required position.

[0059] With reference to Figure 3 and Figure 9 , further, the mounting seat 322 is slidingly arranged on the first stand 321 in the vertical direction. The first stand 321 is provided with a first driving member for driving the mounting seat 322 to slide. Two sliding seats 5 are slidingly arranged on the mounting seat 322 in the horizontal direction. The mounting seat 322 is provided with a second driving member for driving the two sliding seats 5 to move closer to or away from each other. Further, the second photoelectric sensor group 324 comprises a plurality of second photoelectric sensors, each corresponding to a sliding seat 5. The second photoelectric sensors are arranged on the corresponding sliding seats 5. The distance between two second photoelectric sensors is greater than the distance between the two openings 63 on the differential housing 58 and less than the maximum distance between the outer walls of the two sides of the differential housing 58. A support rod 6 is fixedly arranged on each sliding seat 5. The cross section of the support rod 6 is U-shaped. The first placement seat 31 is located between the two support rods 6. The first photoelectric sensor group 323 comprises a plurality of first photoelectric sensors, each corresponding to a support rod 6. The first photoelectric sensors are arranged on the corresponding support rods 6. The optical axis of the first photoelectric sensor is perpendicular to the optical axis of the second photoelectric sensor, and the optical axis of the first photoelectric sensor is parallel to the sliding direction of the sliding seat 5. When the arrangement direction of the two openings 63 on the differential housing 58 is perpendicular to the optical axis of the second photoelectric sensor, the second photoelectric sensor will not detect the differential housing 58. The first photoelectric sensor and the second photoelectric sensor are both electrically connected to the PLC control platform.

[0060] With reference to Figure 3 and Figure 9Specifically, both the first photoelectric sensor and the second photoelectric sensor are infrared sensors, the transmitting end of the second photoelectric sensor is set on the corresponding sliding seat 5, the receiving end of the second photoelectric sensor is set on the support rod 6 of the corresponding sliding seat 5, and the first placement seat 31 is located between the transmitting end and the receiving end of the second photoelectric sensor; the transmitting end of the first photoelectric sensor is set on the corresponding support rod 6, the receiving end is set on another support rod 6 or the receiving end is also set on the corresponding support rod 6, both of which can realize the detection of the differential case 58 and the outer ring gear 62.

[0061] During use, the mounting seat 322 is first adjusted to the desired height by the first driving member so that the optical axis of the first photoelectric sensor on the support rod 6 is aligned with the preset position of the differential outer ring 62 on the first placement seat 31. Then, the two sliding seats 5 on the mounting seat 322 are adjusted to the desired position by the second driving member so that the distance between the two second photoelectric sensors is greater than the distance between the two opposite openings 63 on the differential housing 58 and less than the maximum distance between the outer walls of the differential housing 58 on both sides. At this time, the detection mechanism 32 is in working condition.

[0062] After the differential is placed on the first placement seat 31, the first photoelectric sensor is used to detect whether the outer ring gear 62 of the differential is present to determine whether the differential is in place. If the first photoelectric sensor detects the outer ring gear 62 of the differential, it proves that the differential has been placed on the first placement seat 31; then the driving source 33 drives the first placement seat 31 to drive the differential to rotate, and the second photoelectric sensor is used to detect the presence of the differential housing 58. If the second photoelectric sensor does not detect the differential housing 58, it proves that the openings 63 on the opposite sides of the differential housing 58 are moved to the desired direction, so that the two openings 63 on the differential can be subsequently transferred to the oil immersion machine 2 in the desired orientation through the transfer device.

[0063] Reference Figure 9 In order to facilitate driving the mounting seat 322 to slide, the first driving member includes a first screw rod 37 rotatably arranged on the first vertical seat 321. The rotation axis of the first screw rod 37 is parallel to the sliding direction of the mounting seat 322. The mounting seat 322 is threadedly sleeved on the first screw rod 37. The mounting seat 322 and the first vertical seat 321 are matched with a guide rail so that the mounting seat 322 will not rotate with the rotation of the first screw rod 37; a first hand wheel 38 is fixed to the top of the first screw rod 37 to facilitate the operator to rotate the first screw rod 37.

[0064] When the position of the mounting seat 322 needs to be adjusted, the operator turns the first hand wheel 38, and the first hand wheel 38 drives the first screw rod 37 to rotate, and the first screw rod 37 drives the mounting seat 322 to move in the vertical direction, so as to adjust the position of the mounting seat 322 according to different sizes of differentials. After the mounting seat 322 is adjusted to the required position, the position of the mounting seat 322 is relatively fixed through the self-locking thread of the mounting seat 322 and the first screw rod 37.

[0065] Reference Figure 9 In order to facilitate driving the two sliding seats 5 to slide, the second driving member includes a bidirectional screw rod 39 that is rotatably arranged on the mounting seat 322. The rotation axis of the bidirectional screw rod 39 is parallel to the sliding direction of the sliding seat 5. The two sliding seats 5 are respectively threaded on the two ends of the bidirectional screw rod 39. Specifically, a guide rail is used between the sliding seat 5 and the mounting seat 322 so that the sliding seat 5 will not rotate with the rotation of the bidirectional screw rod 39; a second hand wheel 40 is fixed to the end of the bidirectional screw rod 39 to facilitate the operator to rotate the bidirectional screw rod 39.

[0066] When the position of the sliding seat 5 needs to be adjusted, the operator turns the second hand wheel 40, and the second hand wheel 40 drives the bidirectional screw 39 to rotate. The bidirectional screw 39 drives the two sliding seats 5 to move closer to or away from each other, so as to adjust the position of the sliding seat 5 according to the different sizes of differentials. After the sliding seat 5 is adjusted to the required position, the position of the sliding seat 5 is relatively fixed through the self-locking thread of the sliding seat 5 and the bidirectional screw 39.

[0067] Reference Figure 3 In order to facilitate the adjustment of the axial direction of the differential, the second workstation 4 includes a second stand 41, a second placement seat 42 and a support platform 43, wherein the second stand 41 is fixed on the integrated platform 29, and the upper surface of the second stand 41 is higher than the first placement seat 31, so as to facilitate the horizontal placement of the differential; the second placement seat 42 is fixed on the second stand 41, and the second placement seat 42 has a V-shaped groove to facilitate the placement of the outer gear ring 62 on the differential; there are two support platforms 43, which are respectively located on opposite sides of the second placement seat 42, and the upper surfaces of the two support platforms 43 are provided with supporting arc surfaces. The two support platforms 43 are respectively used to support the two output ends of the differential housing 58. Specifically, the arrangement direction of the two support platforms 43 is parallel to the arrangement direction of the first workstation 3 and the second workstation 4.

[0068] When the outer gear ring 62 of the differential abuts against the V-groove of the second placement seat 42, the two ends of the differential housing 58 respectively abut against the supporting arc surfaces of the two support platforms 43. At this time, the axis of the differential housing 58 is horizontal. By transferring the differential on the first workstation 3 to the second workstation 4, the axis of the differential can be quickly adjusted to the horizontal direction, and at the same time, the two openings 63 on the differential housing 58 are ensured to enter the oil immersion machine 2 in an up-and-down distributed state, so as to avoid the differential housing 58 from accumulating oil.

[0069] Reference Figure 11 To facilitate oil sealing of the differential, the oil immersion machine 2 has an oil immersion seat 44 for supporting the differential. In the embodiment of the present invention, the oil immersion machine 2 is provided with two oil immersion stations, and the oil immersion seats 44 correspond to the oil immersion stations one by one. When the differential is placed on the oil immersion seat 44, the axis of the differential housing 58 is horizontal, so that the internal cavity of the differential is completely covered with anti-rust oil. The specific structure and principle of the oil immersion machine 2 belong to the existing technology and will not be repeated here. The oil immersion machine 2 is electrically connected to the PLC control platform.

[0070] After the differential is placed on the corresponding oil immersion seat 44 through the transfer device, the openings 63 on the opposite sides of the differential housing 58 are distributed up and down. The oil immersion machine 2 drives the machine door to close, and fills the oil immersion station with rust-proof oil to oil-seal the differential. After the oil sealing is completed, the rust-proof oil is discharged from the oil immersion station, and then the machine door of the oil immersion machine 2 is opened. Then the transfer device can take out the differential after oil immersion.

[0071] Reference Figure 11 In order to facilitate drying of the differential, a drying seat 14 is provided in the dryer 13 so as to rotate in the vertical direction. When the differential is located on the drying seat 14, the axis of the differential housing 58 is in the vertical direction. A seventh driving member is provided in the dryer 13 for driving the drying seat 14 to rotate. The seventh driving member can be a reduction motor, a servo motor, a drive motor, etc., which is not limited here. The drying seat 14 is coaxially fixed with the output shaft of the seventh driving member. The dryer 13 belongs to the prior art and will not be described in detail here. The dryer 13 and the seventh driving member are both electrically connected to the PLC control platform.

[0072] Reference Figure 11 A plurality of drying gear rods 15 are fixed on the drying seat 14, and the plurality of drying gear rods 15 are used to engage with the spline 64 in the differential half-shaft gear 61. In order to prevent the differential housing 58 from rotating during drying, a plurality of support rod bodies for supporting the differential outer ring gear 62 are fixed in the dryer 13, and the plurality of support rod bodies are arranged at intervals along the circumference of the drying seat 14.

[0073] When the differential is placed on the drying seat 14, multiple drying gear rods 15 are engaged with the splines 64 in the differential half-shaft gear 61, and the drying seat 14 is driven to rotate through the seventh drive member. The drying seat 14 drives the differential half-shaft gear 61 to rotate through multiple drying gear rods 15, so that the planetary gears 60 and the half-shaft gear 61 in the differential rotate when the differential housing 58 is relatively stationary, which helps to improve the drying effect and efficiency.

[0074] Reference Figure 3 、 Figure 10 and Figure 11 In order to facilitate the smooth placement of the differential into the dryer 13, the third station 16 includes a support seat 161, a third placement seat 162, a drying fixed gear rod 163 and an anti-rotation member. The support seat 161 is fixedly arranged on the integrated platform 29, and the support seat 161 is located between the first station 3 and the second station 4. The third placement seat 162 is rotatably arranged on the support seat 161 in the vertical direction, and the drying fixed gear rod 163 is fixedly arranged on the third placement seat 162, and multiple drying fixed gear rods 163 are arranged along the center of the support seat 161. The multiple drying fixed gear rods 163 are all used to engage with the spline 64 in the differential half-shaft gear 61. When the differential is located on the third placement seat 162, the axis of the differential housing 58 is in the vertical direction; the anti-rotation member is arranged on the support seat 161, and the anti-rotation member is used to lock the position of the third placement seat 162 or release the lock of the third placement seat 162.

[0075] When in use, the third placement seat 162 is rotated to rotate the multiple drying fixed gear rods 163 to the desired position, and then the third placement seat 162 and the support seat 161 are fixed relative to each other through the anti-rotation part. Then, the differential is placed on the third placement seat 162 through the transfer device, and the multiple drying fixed gear rods 163 are engaged with the splines 64 in the differential half-shaft gear 61. At this time, the differential is in the desired state, and the differential can be moved into the dryer 13 through the transfer device.

[0076] Reference Figure 3 and Figure 10 In order to facilitate locking the position of the third placement seat 162 or unlocking the third placement seat 162, the anti-rotation part includes a pressure block rotatably arranged on the support seat 161, and the rotation axis of the pressure block is parallel to the rotation axis of the third placement seat 162. The pressure block is used to abut against the upper surface of the third placement seat 162, and a tightening bolt for tightening the third placement seat 162 is provided on the pressure block. In other embodiments, the pressure block can be replaced with a tightening screw, which is threaded through the third placement seat 162 and is used to abut or disengage with the support seat 161.

[0077] When it is necessary to limit the rotation of the third placement seat 162, the pressure block is rotated toward the direction close to the third placement seat 162 so that the pressure block abuts against the upper surface of the third placement seat 162, and then the tightening bolt is rotated to press the third placement seat 162; when it is necessary to rotate the third placement seat 162, the pressure block is rotated toward the direction away from the third placement seat 162, and then the tightening bolt is rotated in the opposite direction to disengage the third placement seat 162, and then the pressure block is disengaged from the upper surface of the third placement seat 162.

[0078] Reference Figure 2 and Figure 12 To facilitate the transfer of the differential, the transfer device includes a first robot 17 and a second robot 18, both electrically connected to the PLC control platform. Both the first robot 17 and the second robot 18 are six-axis robots capable of multi-degree-of-freedom movements. Six-axis robots are conventional technology, and their structure and principles are not described in detail here. To facilitate the use of the first and second robots 17 and 18, the cleaning machine 1, the oil immersion machine 2, and the dryer 13 are arranged side by side. The loading bin 23, the sampling bin 24, and the code scanning device 25 are located on the side of the cleaning machine 1 away from the oil immersion machine 2. The arrangement direction of the loading bin 23 and the sampling bin 24 are perpendicular to the arrangement direction of the cleaning machine 1, the oil immersion machine 2, and the dryer 13. The posture adjustment device is aligned between the cleaning machine 1 and the oil immersion machine 2. The lower bin 26 is located on the side of the dryer 13 away from the cleaning machine 1. To facilitate sampling after post-processing, a sampling bin 24 can be installed near the lower bin 26 as needed. Furthermore, the first robot 17 is located in a space surrounded by the upper bin 23, the cleaning machine 1 and the posture adjustment device, and the second robot 18 is located in a space surrounded by the lower bin 26, the dryer 13, the oil immersion machine 2 and the posture adjustment device.

[0079] Reference Figure 12 and Figure 14 The execution ends of the first robot 17 and the second robot 18 are both fixedly provided with a mounting plate 19, and the mounting plate 19 is both mounted with a rotating jaw 20 and a transfer jaw 21, wherein the transfer jaw 21 is a three-jaw jaw, which is used to clamp the outer ring gear 62 of the differential. The three-jaw jaw is a prior art, and its structure and principle are not described in detail here. The rotating jaw 20 is used to clamp the outer ring gear 62 of the differential to drive the differential to rotate along its own axis. The mounting plate 19 of the second robot 18 is also mounted with a flat open jaw 22, which is used to clamp the two output ends of the differential housing 58 to transfer the differential. Specifically, the flat open jaw 22 is a two-finger jaw, and the two fingers of the flat open jaw 22 are moved closer or farther away from each other to extend into the two output ends of the differential housing 58. The two-finger jaw is a prior art, and its structure and principle are not described in detail here.

[0080] Reference Figure 12 and Figure 13In order to facilitate the rotation of the differential along its own axis, the rotating clamp 20 includes a mounting plate 201, a guide mounting rod 202, a centering clamp 203 and a third driving member 204. The mounting plate 201 is rotatably arranged below the corresponding mounting plate 19 through a bearing. The rotation axis of the mounting plate 201 is perpendicular to the plane where the corresponding mounting plate 19 is located. A plurality of guide mounting rods 202 are provided, and the plurality of guide mounting rods 202 are all slidably penetrated on the mounting plate 201. The sliding direction of the guide mounting rods 202 is parallel to the rotation axis of the mounting plate 201. The centering clamp 203 is fixedly arranged below the plurality of guide mounting rods 202. The mounting plate 201 and the centering clamp 203 are concentrically arranged. To facilitate the reset of the centering jaw 203 and ensure its stability, a spring is provided on the upper end of the guide mounting rod 202. One end of the spring is fixed to the guide mounting rod 202, and the other end is fixed to the upper surface of the mounting plate 201. The spring is used to drive the centering jaw 203 downward. A third driving member 204 is provided above the mounting plate 19. The third driving member 204 is used to drive the mounting plate 201 to rotate. Specifically, the third driving member 204 is a rotary cylinder. The mounting plate 201 is connected to the output end of the rotary cylinder. The centering jaw 203 is a three-jaw clamp with the same structure and principle as the transfer jaw 21. The bottom of the rotating jaw 20 is lower than the bottom of the transfer jaw 21. To facilitate the detection of the position of the centering jaw 203, a position sensor for detecting the position of the centering jaw 203 is also provided on the mounting plate 201. The centering jaw 203, the transfer jaw 21, and the horizontal opening jaw 22 are all electrically connected to the PLC control platform.

[0081] Since the loading bin 23 has a plurality of first placement stations 27, and the bottom of the rotating jaw 20 on the first robot 17 is lower than the bottom of the transfer jaw 21, the differential on the loading bin 23 is moved to the sampling bin 24 by the rotating jaw 20 on the first robot 17 to avoid interference; since the mounting plate 19 is provided with a third driving member 204 at the upper end of the rotating jaw 20, the upper surface of the third driving member 204 is higher than the upper surface of the transfer jaw 21, in order to prevent the third driving member 204 on the rotating jaw 20 from interfering with the code scanner 253 on the code scanning device 25, the transfer jaw 21 on the first robot 17 is used to move the differential on the sampling bin 24 to the code scanning device 25; since it is required at the cleaning machine 1 The differential needs to be rotated and aligned, so after the code scanning is completed, the differential at the code scanning device 25 is placed back to the sampling bin 24 through the transfer jaws 21, and then the rotating jaws 20 of the first robot 17 are used to clamp the differential after the code scanning at the sampling bin 24 and move it to the cleaning seat 9 of the operating port 7 of the cleaning machine 1. The differential is driven to rotate along its own axis by the rotating jaws 20 until the cleaning alignment rod 10 on the cleaning seat 9 is engaged with the spline 64 on the inner wall of the differential half-shaft gear 61, completing the loading at the cleaning machine 1; since the first workstation 3 does not require alignment and is not limited by space, the differential can be moved from the cleaning machine 1 to the first workstation 3 by using either the rotating jaws 20 of the first robot 17 or the transfer jaws 21 of the first robot 17.

[0082] Since there is no need for gear alignment at the second station 4 and there is no space restriction, the differential can be moved from the first station 3 to the second station 4 using the rotating clamp 20 or the transfer clamp 21 on the second robot 18; since the differential is in a horizontal state when entering the oil immersion machine 2, the flat open clamp 22 on the second robot 18 is used to move the differential into or out of the oil immersion machine 2; since the differential needs to be gear aligned at the third station 16, the rotating clamp 20 on the second robot 18 is used to move the differential to the third station 16; and since the entrance of the dryer 13 is small, in order to avoid interference, the transfer clamp 21 on the second robot 18 is used to move the differential into or out of the dryer 13.

[0083] Reference Figure 15 The mounting plate 19 on the second robot 18 is cross-shaped. Two flat jaws 22 are provided on the second robot 18. The rotating jaw 20, transfer jaw 21, and two flat jaws 22 are located at the four ends of the mounting plate 19 on the second robot 18. The distances from the transfer jaw 21 to the center of the mounting plate 19, the flat jaw 22 to the center of the mounting plate 19, and the rotating jaw 20 to the center of the mounting plate 19 decrease in this order. Positioning the transfer jaw 21 relatively far from the center of the mounting plate 19 facilitates placement of the differential into the dryer 13.

[0084] The implementation principle of the embodiment 1 of the application is as follows: when the automobile differential is produced, the assembled differential is placed on the plurality of first placing stations 27 of the feeding bin 23, and each assembled differential is provided with an identification code, then the differential on the feeding bin 23 is transferred to the second placing station 28 of the sampling bin 24 by the rotating gripper 20 of the first robot 17, then the differential on the second placing station 28 is transferred to the scanning seat 252 of the code scanning device 25 by the transfer gripper 21 of the first robot 17, the transfer gripper 21 of the first robot 17 is used to avoid the interference between the third driving member 204 of the rotating gripper 20 and the code scanner 253 of the code scanning device 25, then the identification code on the differential on the scanning seat 252 is scanned by the code scanner 253, after the scanning is completed, the differential is moved back to the sampling bin 24 by the transfer gripper 21 of the first robot 17, then the differential on the second placing station 28 after the scanning is moved to the cleaning seat 9 at the operating port 7 of the cleaning machine 1 by the rotating gripper 20 of the first robot 17, since the half shaft gear 61 in the differential is placed on the plurality of cleaning toothed rods 10, two situations will occur, one is that the spline 64 of the half shaft gear 61 in the differential is just aligned with the plurality of cleaning toothed rods 10 and successfully engaged, and the other is that the spline 64 of the half shaft gear 61 in the differential is misaligned with the plurality of cleaning toothed rods 10, at this time, during the process of placing the differential under the rotating gripper 20, the differential cannot be smoothly placed on the cleaning seat 9, but the centering gripper 203 will slide relative to the mounting disc 201 under the abutting of the plurality of cleaning toothed rods 10, at this time, the position sensor on the mounting disc 201 detects that the centering gripper 203 and the mounting disc 201 have relative displacement change, which proves that the toothed engagement is unsuccessful, then the mounting disc 201 drives the centering gripper 203 to rotate together with the differential by the third driving member 204, until the spline 64 of the half shaft gear 61 in the differential is aligned with the plurality of cleaning toothed rods 10, at this time, under the action of the gravity of the differential and the elasticity of the spring, the differential is placed on the cleaning seat 9, so that the spline 64 of the half shaft gear 61 in the differential is engaged with the plurality of cleaning toothed rods 10.

[0085] Then the sixth driving member 12 is started to drive the locking seat 11 to move in the direction away from the cleaning seat 9 located at the operating port 7, so that the locking seat 11 is disengaged from the aligned cleaning seat 9, and then the driving motor of the fifth driving member is driven away from the cleaning seat 9 of the corresponding cleaning position, so that the matching seat is disengaged from the matching claw 34, and then the cleaning disc 8 is driven to rotate by the fourth driving member, so that the cleaning disc 8 drives the newly loaded differential to move into the cleaning position inside the cleaning machine 1, and moves the cleaned differential to the operating port 7 for unloading. When the differential to be cleaned moves to the corresponding cleaning position, the cleaning disc 8 drives the cleaning disc 8 to move the newly loaded differential to the cleaning position inside the cleaning machine 1, and moves the cleaned differential to the operating port 7 for unloading. After the cleaning position is reached, the driving motor of the fifth driving member is driven close to the cleaning seat 9 of the corresponding cleaning position, so that the matching seat of the driving motor engages with the matching claw 34 on the cleaning seat 9 at the corresponding position, and then the driving motor is started, and the cleaning seat 9 is driven to rotate through the matching seat and the matching claw 34. The cleaning seat 9 drives the half-shaft gear 61 in the differential to rotate through multiple cleaning gear rods 10, thereby causing the planetary gear 60 in the differential to also rotate, and the differential housing 58 is relatively fixed, and the high-pressure spray head at the cleaning position performs high-pressure washing on the differential at the cleaning position.

[0086] The differential that has been cleaned at the operation port 7 is moved to the first placement seat 31 of the first workstation 3 by the rotating clamp 20 or the transfer clamp 21 of the first robot 17, and the first photoelectric sensor is used to detect whether the outer ring gear 62 of the differential is present to determine whether the differential is in place. If the first photoelectric sensor detects the outer ring gear 62 of the differential, it proves that the differential has been placed on the first placement seat 31; then the driving source 33 drives the first placement seat 31 to drive the differential to rotate, and the second photoelectric sensor is used to detect the presence of the differential housing 58. If the second photoelectric sensor does not detect the differential housing 58, it proves that the openings 63 on both sides of the differential housing 58 have moved to the desired direction; when the arrangement direction of the differential housing 58 relative to the two openings 63 is perpendicular to the optical axis of the second photoelectric sensor, the second photoelectric sensor will not detect the differential housing 58.

[0087] Then, the differential that has been adjusted on the first station 3 is moved to the second placement seat 42 of the second station 4 by the rotating clamp 20 or the transfer clamp 21 of the second robot 18, so that the axis of the differential housing 58 is horizontal, and the two openings 63 on the differential housing 58 are distributed up and down, and then the two opposite output ends of the differential housing 58 are clamped by the flat opening clamp 22 of the second robot 18, and the state of the differential on the second placement seat 42 is kept and moved to the oil immersion seat 44 of the oil immersion machine 2, and then the oil immersion machine 2 drives the machine door to close, fills the oil immersion station with rust-proof oil to oil-seal the differential, and after the oil sealing is completed, the rust-proof oil is discharged from the oil immersion station, and then the machine door of the oil immersion machine 2 is opened, and then the differential that has been immersed in oil is taken out to the second station 4 by the flat opening clamp 22 of the second robot 18.

[0088] Then, the differential on the second workstation 4 is moved to the third workstation 16 by the rotating clamp 20 of the second robot 18. This process is similar to placing the differential on the cleaning seat 9. The rotating clamp 20 can drive the differential to rotate until the spline 64 of the half-shaft gear 61 inside the differential is engaged with the multiple drying fixed gear rods 163. Then, the differential with the completed gear alignment on the third placement seat 162 is moved to the multiple drying gear rods 15 on the drying seat 14 by the transfer clamp 21 of the second robot 18 in a state matching the multiple drying gear rods 15 on the drying seat 14, ensuring that the spline 64 of the half-shaft gear 61 inside the differential is engaged with the multiple drying gear rods 15. The use of the transfer clamp 21 of the second robot 18 for transfer can avoid interference between the third driving member 204 on the rotating clamp 20 and the body of the dryer 13. After the drying is completed, the differential is moved to the lower bin 26 by the transfer clamp 21 of the second robot 18, thereby completing the post-processing process.

[0089] The present invention can quickly adjust the posture of the differential after the cleaning link to the posture required for the oil immersion link through the arrangement of the first workstation 3, the second workstation 4 and the third workstation 16, and the coordinated cooperation between each workstation and the clamps on the first robot 17 and the second robot 18, and then quickly adjust the posture of the differential after the oil immersion link to the posture required for the drying link, thereby improving the posture adjustment efficiency of the differential when entering different links to a certain extent, and helping to improve processing efficiency.

[0090] Example 2:

[0091] Reference Figure 16 and Figure 17 The difference between this embodiment and embodiment 1 is that installation groups are provided on opposite sides of the second stand 41, and the arrangement direction of the two installation groups is perpendicular to the arrangement direction of the two support platforms 43. The second placement seat 42 is located between the two installation groups. Each installation group includes two first support plates 45 and two second support plates 46 arranged opposite to each other. The arrangement direction of the two first support plates 45 and the arrangement direction of the two second support plates 46 are both parallel to the arrangement direction of the two support platforms 43, and the two second support plates 46 are located between the two first support plates 45.

[0092] Reference Figure 16 and Figure 17A transmission block 47 is slidingly provided between the two first support plates 45, and the sliding direction of the transmission block 47 is parallel to the arrangement direction of the two support platforms 43. The transmission block 47 is located between the two second support plates 46, and a cleaning sponge 48 is detachably fixed between the transmission blocks 47 of the two installation groups through a connecting rod. The cleaning sponge 48 is used to wipe the oil or water on the second placement seat 42. The shape of the cleaning sponge 48 is adapted to the V-groove on the second placement seat 42 so that it can be cleaned through the V-groove of the second placement seat 42. The cleaning sponge 48 is detachably connected to the transmission block 47 to facilitate regular replacement of the cleaning sponge 48; and it is not easy to interfere too much with the second placement seat 42. A sliding member for driving the transmission block 47 to slide is provided between the two first support plates 45.

[0093] Reference Figure 17 and Figure 18 In order to facilitate the sliding of the transmission block 47, the sliding member includes a reciprocating screw 49 rotatably arranged between the corresponding two first support plates 45, and the two second support plates 46 are provided with through holes for the reciprocating screw 49 to move through. The transmission block 47 is threadedly sleeved on the corresponding reciprocating screw 49, and the reciprocating screw 49 is driven to rotate unidirectionally to realize the reciprocating movement of the transmission block 47. The end thread of the reciprocating screw 49 is misaligned with the second placement seat 42, so that when the cleaning sponge 48 is not in use, it is located between the second placement seat 42 and any support platform 43.

[0094] Reference Figure 16 and Figure 17 In order to facilitate driving the reciprocating screw 49 to rotate, the support platform 43 includes a fixed plate 50 and a sliding plate 51. The fixed plate 50 is fixedly arranged on the second vertical seat 41, and the second placement seat 42 is located between the fixed plates 50 of the two support platforms 43; the sliding plate 51 slides in the corresponding fixed plate 50 along the vertical direction, and the supporting arc surface is opened on the upper surface of the sliding plate 51. The sliding plate 51 is used to support the output end of the differential housing 58; in order to facilitate guiding the sliding of the sliding plate 51, a guide rod 52 is fixed in the fixed plate 50, and the sliding plate 51 is slidably sleeved on the corresponding guide rod 52. When the top end of the guide rod 52 abuts against the sliding plate 51, and the differential abuts against the supporting arc surface of the sliding plate 51, the differential abuts against the second placement seat 42, thereby realizing the support of the differential by the second placement seat 42 and the sliding plate 51.

[0095] Reference Figure 17 A push spring 53 is provided in the fixed plate 50 for pushing the sliding plate 51 to move in a direction away from the corresponding fixed plate 50. When the push spring 53 is in a natural state, the top end of the guide rod 52 is separated from the inner wall of the sliding plate 51. At this time, the sliding plate 51 can move in a direction close to the fixed plate 50. The gravity of the differential is much greater than the sum of the elastic forces of the push spring 53.

[0096] When the differential is gradually placed on the second placement seat 42, the differential will drive the sliding plate 51 to move downward, compressing the push spring 53 until the differential abuts against the V-groove on the second placement seat 42. At this time, the guide rod 52 abuts against the inner wall of the sliding plate 51, thereby limiting the downward movement of the sliding plate 51 to provide stable support for the differential; when the differential is gradually removed from the second placement seat 42, the abutment force of the differential on the sliding plate 51 decreases, and under the thrust of the push spring 53, the sliding plate 51 can be driven to gradually move upward until the push spring 53 is in a natural state.

[0097] Reference Figure 17 and Figure 18 In order to facilitate the sliding of the sliding plate 51 to drive the rotation of the reciprocating screw 49, a gear 54 is rotatably connected to the second support plate 46. The reciprocating screw 49 rotates coaxially and passes through the gear 54 on the corresponding side. A rack 55 is fixed on the sliding plate 51. The length direction of the rack 55 is parallel to the sliding direction of the sliding plate 51. The rack 55 corresponds to the gear 54 one by one and is used to mesh with the corresponding gear 54. A ratchet is fixed on the gear 54. 56. The ratchet 56 adopts an inner ratchet ring, that is, the ratchet teeth of the ratchet 56 are located on the inner ring, and a pawl 57 is hinged on the reciprocating screw 49. The pawl 57 corresponds to the ratchet 56 one by one. A torsion spring or elastic sheet is provided between the reciprocating screw 49 and the pawl 57 for resetting the pawl 57. The pawl 57 is engaged with the corresponding ratchet 56. The elastic force of the push spring 53 is much greater than the sum of the friction between the rack 55 and the gear 54 and the friction caused by the rotation of the reciprocating screw 49.

[0098] Reference Figure 17 and Figure 18 Specifically, when the sliding plate 51 drives the rack 55 downward, the rack 55 drives the gear 54 to rotate. The gear 54, through the ratchet 56, causes the pawl 57 to deform relative to the reciprocating screw 49, preventing the reciprocating screw 49 from rotating. When the sliding plate 51 drives the rack 55 upward, driving the gear 54 to rotate, the gear 54, through the cooperation of the ratchet 56 and the pawl 57, drives the reciprocating screw 49 to rotate continuously, causing the reciprocating screw 49 to drive the transmission block 47 to slide. This allows the cleaning sponge 48 to move from one end of the reciprocating screw 49 to the other end, wiping any oil or water that has just adhered to the second placement seat 42, ensuring the cleanliness of the second placement seat 42 and minimizing the impact on the oil immersion effect. When the sliding plate 51 abuts the top end of the guide rod 52, the rack 55 disengages from the gear 54. This allows the transmission block 47 to slide only after the sliding plate 51 and the differential have moved upward a certain distance, ensuring that the cleaning sponge 48 does not interfere with the differential. During the process of the sliding plate 51 changing from abutting the top end of the guide rod 52 to the natural state of the push spring 53, the rack 55 can drive the gear 54 to rotate, so that the reciprocating screw 49 moves the transmission block 47 from one end of the reciprocating screw 49 to the other end, that is, every time the sliding plate 51 moves upward, the transmission block 47 moves from one end of the reciprocating screw 49 to the other end.

[0099] The implementation principle of the embodiment 2 of the present application is that when the second station 4 is in the initial state, the push spring 53 is in the natural state, and at this time the transmission block 47 is located between the second placing seat 42 and any fixed plate 50; when the differential gradually places on the second placing seat 42, the differential will drive the sliding plate 51 to move downward, gradually compressing the push spring 53, the rack 55 drives the gear 54 to rotate, the gear 54 drives the pawl 57 to deform relative to the reciprocating screw 49 through the ratchet 56, at this time the reciprocating screw 49 will not rotate, until the differential and the V-shaped groove on the second placing seat 42 abut, at this time the guide rod 52 and the inner wall of the sliding plate 51 abut, thereby limiting the downward movement of the sliding plate 51, so as to be able to stably support the differential.

[0100] When the differential is gradually taken off from the second placing seat 42, the abutting force of the differential on the sliding plate 51 decreases, and under the action of the pushing force of the push spring 53, the sliding plate 51 can be gradually moved upward, when the rack 55 drives the gear 54 to rotate reversely, the gear 54 drives the reciprocating screw 49 to rotate continuously through the cooperation of the ratchet 56 and the pawl 57, so that the reciprocating screw 49 drives the transmission block 47 to slide, so as to move the sponge 48 from one end of the reciprocating screw 49 to the other end to clean and wipe the oil or water just adhered on the second placing seat 42, until the push spring 53 is in the natural state, so as to be able to ensure the cleanliness of the second placing seat 42, and not easily affect the oil immersion effect.

[0101] The above are the preferred embodiments of the present application, and do not limit the protection scope of the present application, therefore: any equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A post-processing system for differential production, characterized in that: include: A cleaning machine (1), the cleaning machine (1) is used for cleaning the differential; An oil immersion machine (2), the oil immersion machine (2) being used to oil-seal the differential after cleaning; A posture adjustment device, the posture adjustment device is used to assist in adjusting the posture of a differential, the posture adjustment device includes a first station (3) and a second station (4), the first station (3) is used to adjust the positions of two openings (63) on a differential housing (58), the first station (3) includes a first placement seat (31) and a detection mechanism (32), the detection mechanism (32) is used to detect the presence of opposite sides of the differential housing (58) and an outer gear ring (62) on the first placement seat (31), the second station (4) is used to adjust the axial direction of the differential housing (58), when the differential is located on the second station (4), the axial direction of the differential housing (58) is parallel to the horizontal direction, and the two openings (63) on the differential housing (58) are arranged in the vertical direction; a transfer device, the transfer device being used to transfer the differential; The assembled differential passes through the transfer device in sequence through a cleaning machine (1), a first workstation (3), a second workstation (4) and an oil immersion machine (2).

2. The post-processing system for differential production according to claim 1, characterized in that: The detection mechanism (32) includes a first stand (321), a mounting seat (322), a first photoelectric sensor group (323), and a second photoelectric sensor group (324). The mounting seat (322) is arranged on the first stand (321). The first photoelectric sensor group (323) and the second photoelectric sensor group (324) are both mounted on the mounting seat (322). The first photoelectric sensor group (323) is used to detect the presence of the differential outer gear ring (62), and the second photoelectric sensor group (324) is used to detect the presence of opposite sides of the differential housing (58).

3. The post-processing system for differential production according to claim 2, characterized in that: The mounting seat (322) is slidably arranged on the first upright seat (321) in the vertical direction, the first upright seat (321) is provided with a first driving member for driving the mounting seat (322) to slide, the mounting seat (322) is provided with two sliding seats (5) for relative sliding in the horizontal direction, the mounting seat (322) is provided with a second driving member for driving the two sliding seats (5) to move closer to or away from each other, the second photoelectric sensor group (324) includes a second photoelectric sensor, the second photoelectric sensor corresponds to the sliding seat (5) in a one-to-one manner, the second photoelectric sensor is arranged on the corresponding sliding seat (5), the sliding seat (5) is provided with a support rod (6), the first photoelectric sensor group (323) includes a first photoelectric sensor, the first photoelectric sensor corresponds to the support rod (6) in a one-to-one manner, the first photoelectric sensor is arranged on the corresponding support rod (6), the optical axis of the first photoelectric sensor is perpendicular to the optical axis of the second photoelectric sensor, and the optical axis of the first photoelectric sensor is parallel to the sliding direction of the sliding seat (5).

4. The post-processing system for differential production according to claim 1, characterized in that: The cleaning machine (1) has an operating port (7) for inserting or removing the differential, a cleaning disc (8) is arranged in the cleaning machine (1) for rotating in a vertical direction, a fourth driving member for driving the cleaning disc (8) to rotate is arranged in the cleaning machine (1), a plurality of cleaning seats (9) are arranged in the cleaning disc (8) for rotating in a vertical direction, each of the cleaning seats (9) is provided with a plurality of cleaning toothed rods (10), and the plurality of cleaning toothed rods (10) are used to mesh with the splines (64) in the differential half-shaft gear (61), and a fifth driving member for driving the cleaning seat (9) to rotate is arranged in the cleaning machine (1).

5. The post-processing system for differential production according to claim 4, characterized in that: A locking seat (11) is slidably provided at the operating port (7) of the cleaning machine (1); the sliding direction of the locking seat (11) is perpendicular to the rotation axis of the cleaning seat (9); the locking seat (11) is used to abut against the cleaning seat (9) at the operating port (7) to inhibit the cleaning seat (9) from rotating; a sixth driving member (12) is provided in the cleaning machine (1); the sixth driving member (12) is used to drive the locking seat (11) to slide in a direction close to or away from the cleaning seat (9) at the operating port (7).

6. A post-processing system for differential production according to any one of claims 1 to 5, characterized in that: The post-processing system also includes a dryer (13), the dryer (13) is used to dry the differential, a drying seat (14) for placing the differential is rotatably provided in the dryer (13), a plurality of drying gear rods (15) are provided on the drying seat (14), and the plurality of drying gear rods (15) are used to engage with the spline (64) in the differential half-axle gear (61), and a seventh driving member is provided in the dryer (13) for driving the drying seat (14) to rotate; the posture adjustment device also includes a third station (16), the third station (16) includes a support seat (161), a third placement seat (162) rotatably arranged on the support seat (161), a plurality of drying fixed gear rods (163) arranged on the third placement seat (162), and an anti-rotation member arranged on the support seat (161), wherein the rotation axis of the third placement seat (162) is arranged in a vertical direction, the plurality of drying fixed gear rods (163) are all used to engage with the spline (64) in the differential half-shaft gear (61), and the anti-rotation member is used to lock the position of the third placement seat (162) or release the lock of the third placement seat (162).

7. The post-processing system for differential production according to claim 6, characterized in that: The transfer device includes a first robot (17) and a second robot (18), wherein the execution ends of the first robot (17) and the second robot (18) are both provided with a mounting plate (19), and the mounting plate (19) is provided with a rotating clamp (20) and a transfer clamp (21), wherein the rotating clamp (20) is used to clamp the outer gear ring (62) of the differential to drive the differential to rotate along its own axis, and the transfer clamp (21) is used to clamp the outer gear ring (62) of the differential to move the differential, and the mounting plate (19) of the second robot (18) is provided with a flat open clamp (22), and the flat open clamp (22) is used to clamp the two output ends of the differential housing (58) to transfer the differential.

8. The post-processing system for differential production according to claim 7, characterized in that: The rotating clamp (20) includes a mounting plate (201) rotatably arranged on a corresponding mounting plate (19), a plurality of guide mounting rods (202) slidingly penetrated on the mounting plate (201), a centering clamp (203) arranged below the plurality of guide mounting rods (202), and a third driving member (204) arranged above the mounting plate (19); the rotation axis of the mounting plate (201) is perpendicular to the plane where the corresponding mounting plate (19) is located, the sliding direction of the guide mounting rod (202) is parallel to the rotation axis of the mounting plate (201), the mounting plate (201) and the centering clamp (203) are concentrically arranged, and the third driving member (204) is used to drive the mounting plate (201) to rotate.

9. The post-processing system for differential production according to claim 7, characterized in that: The mounting plate (19) on the second robot (18) is cross-shaped, and two flat open jaws (22) are provided on the second robot (18). The rotating jaw (20), the transfer jaw (21) and the two flat open jaws (22) on the second robot (18) are respectively located at the four ends of the mounting plate (19) on the second robot (18), and the distance from the transfer jaw (21) to the center of the mounting plate (19), the distance from the flat open jaw (22) to the center of the mounting plate (19), and the distance from the rotating jaw (20) to the center of the mounting plate (19) decrease in sequence.

10. The post-processing system for differential production according to claim 7, characterized in that: The post-processing system also includes a loading bin (23), a sampling bin (24), a code scanning device (25) and a loading bin (26), wherein the loading bin (23) is used to store the assembled differential, the loading bin (23) has a plurality of first placement stations (27), and the plurality of first placement stations (27) are arranged in a matrix, the sampling bin (24) has a plurality of second placement stations (28), and the plurality of second placement stations (28) are arranged in a matrix, and the number of rows of the plurality of second placement stations (28) is less than or equal to two rows, The code scanning device (25) is used to scan the identification code on the differential, and the discharge bin (26) is used to store the differential after post-processing. The assembled differential passes through the first robot (17) and the second robot (18) in sequence through the loading bin (23), the sampling bin (24), the code scanning device (25), the sampling bin (24), the cleaning machine (1), the first station (3), the second station (4), the oil immersion machine (2), the second station (4), the third station (16), the drying machine (13) and the discharge bin (26).

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