A post-treatment system for differential production

Abstract

The application relates to a post-treatment system for differential gear production, belonging to the technical field of differential gear production. The post-treatment system for differential gear 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 on a differential gear shell. The first station comprises a first placing seat and a detection mechanism. The detection mechanism is used for detecting the existence of the differential gear shell and an outer gear ring on opposite sides of the first placing seat. The second station is used for adjusting the axial direction of the differential gear shell. When the differential gear is located on the second station, the axial direction of the differential gear shell is parallel to the horizontal direction, and the two openings on the differential gear shell are arranged along the vertical direction. The application has the advantages of improving the posture adjusting efficiency of the differential gear when entering different links and improving the machining efficiency to a certain extent.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile differential production, and in particular to a post-treatment system for differential production. BACKGROUND

[0002] The differential is an important component of the automobile transmission system, and through the differential, different rotating speeds can be realized between the left and right drive wheels when the automobile is turning. Figure 1 In the related art, the automobile differential mainly includes a shell 58, a one-axis 59, planetary gears 60, half shaft gears 61 and an outer gear ring 62. The one-axis 59 is fixed in the shell 58, the planetary gears 60 are provided in two, the two planetary gears 60 are idling at the two ends of the one-axis 59, the half shaft gears 61 are provided in two, the two half shaft gears 61 are rotationally connected to the two output ends of the shell 58, each planetary gear 60 is in mesh with the two half shaft gears 61, and the inner wall of the half shaft gear 61 is provided with a ring of splines 64 for connecting with the half shaft of the drive wheel. The outer gear ring 62 is fixedly sleeved outside the shell 58, and through the outer gear ring 62, power can be transmitted to the shell 58. In order to facilitate lubrication of the gear set in the shell 58, openings 63 are usually formed on the opposite sides of the shell 58.

[0003] In the production process of the automobile differential, the differential after assembly needs to be post-treated. The post-treatment process mainly includes cleaning and rust-proof treatment. The attitude of the differential in the cleaning link and the rust-proof link, such as the axial direction and the position of the opening 63, is often different. However, the attitude adjustment efficiency of the differential in the current post-treatment system is low when entering different links, which reduces the processing efficiency. SUMMARY

[0004] In order to improve the attitude adjustment efficiency of the differential when entering different links to a certain extent, which helps to improve the processing efficiency, the present application provides a post-treatment system for differential production.

[0005] The post-treatment system for differential production provided by the present application adopts the following technical scheme:

[0006] A post-treatment system for differential production, comprising:

[0007] A cleaning machine for cleaning the differential;

[0008] An oil immersion machine for oil sealing of the differential after cleaning;

[0009] The posture adjusting device is used for assisting in adjusting the posture of the differential mechanism, and comprises a first station and a second station. The first station is used for adjusting the positions of two openings on the differential case, and comprises a first placing seat and a detection mechanism. The detection mechanism is used for detecting the presence of the differential case relative to both sides and the outer ring gear on the first placing seat. The second station is used for adjusting the axial direction of the differential case. When the differential mechanism is located on the second station, the axial direction of the differential case is parallel to the horizontal direction, and the two openings on the differential case are arranged along the vertical direction.

[0010] The transfer device is used for transferring the differential mechanism.

[0011] The assembled differential mechanism sequentially passes through the cleaning machine, the first station, the second station and the oil immersion machine through the transfer device.

[0012] Preferably, the detection mechanism comprises 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. The first photoelectric sensor group and the second photoelectric sensor group are both arranged on the mounting seat. The first photoelectric sensor group is used for detecting the presence of the outer ring gear of the differential mechanism. The second photoelectric sensor group is used for detecting the presence of the differential case relative to both sides.

[0013] Preferably, the mounting seat is arranged on the first stand in the vertical direction and is slidably arranged. A first driving member is arranged on the first stand and is used for driving the mounting seat to slide. Two sliding seats are arranged on the mounting seat in the horizontal direction and are slidably arranged relative to each other. A second driving member is arranged on the mounting seat and is used for driving the two sliding seats to move close to or away from each other. The second photoelectric sensor group comprises second photoelectric sensors. The second photoelectric sensors correspond to the sliding seats one by one. The second photoelectric sensors are arranged on the corresponding sliding seats. A supporting rod is arranged on the sliding seat. The first photoelectric sensor group comprises first photoelectric sensors. The first photoelectric sensors correspond to the supporting rods one by one. The first photoelectric sensors are arranged on the corresponding supporting rods. The optical axis of the first photoelectric sensor is perpendicular to the optical axis of the second photoelectric sensor. The optical axis of the first photoelectric sensor is parallel to the sliding direction of the sliding seat.

[0014] Preferably, the cleaning machine has an operation opening for placing or taking out the differential mechanism. A cleaning disc is arranged in the cleaning machine and rotates in the vertical direction. A fourth driving member is arranged in the cleaning machine and is used for driving the cleaning disc to rotate. A plurality of cleaning seats are arranged on the cleaning disc and rotate in the vertical direction. A plurality of cleaning toothed rods are arranged on each cleaning seat. The plurality of cleaning toothed rods are used for engaging with the spline in the differential half shaft gear. A fifth driving member is arranged in the cleaning machine and is used for driving the cleaning seat to rotate.

[0015] 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.

[0016] 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 rotatably arranged in the drying machine, a plurality of drying toothed rods are arranged on the drying seat, the plurality of drying toothed rods are used to mesh with the spline in the differential mechanism half shaft 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 rotatably 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 the vertical direction, the plurality of drying toothed rods are used to mesh with the spline in the differential mechanism half shaft gear, and the anti-rotation member is used to lock or unlock the third placing seat.

[0017] Preferably, the transferring device comprises a first robot and a second robot, the execution end of each 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 thereof, 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.

[0018] Preferably, the rotating clamp comprises a mounting disc rotatably 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.

[0019] 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 turn.

[0020] Preferably, the post-processing system further comprises a feeding bin, a sampling bin, a code scanning device and a discharging bin, the feeding bin is used for storing the assembled differential, the feeding bin is provided with a plurality of first placement stations, the plurality of first placement stations are arranged in a matrix, the sampling bin is provided with a plurality of second placement stations, the plurality of second placement stations are arranged in a matrix, and the number of rows of the plurality of second placement stations is less than or equal to two, the code scanning device is used for scanning the identification code on the differential, and the discharging bin is used for storing the differential after the post-processing is completed.

[0021] In summary, the present application has the following beneficial technical effects:

[0022] During operation, the differential is moved to the cleaning machine by the transfer device for cleaning, and after cleaning, the differential in the cleaning machine is moved to the first station of the posture adjusting device by the transfer device, the position of the differential is adjusted until the detection mechanism detects the presence of the outer gear ring of the differential and does not detect the presence of the two opposite sides of the differential housing, which proves that the two opposite openings on the differential housing have been moved to the required position; then the differential adjusted on the first station is moved to the second station by the transfer device, so that the axis of the differential housing is in the horizontal direction, and the two openings on the differential housing are distributed in the upper and lower directions, and then the differential is moved to the oil immersion machine by the transfer device to keep the state of the differential on the second station for oil sealing, and after the rust-proof treatment of oil sealing is completed, the differential is moved out by the transfer device; through the cooperation of the first station and the second station and the transfer device, the posture of the differential after the cleaning link is adjusted to the posture in the oil immersion link, thereby improving the posture adjustment efficiency of the differential when entering different links, and helping to improve the processing efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a schematic diagram of the overall structure of the differential in the related art.

[0024] Figure 2 is a schematic diagram of the overall structure of embodiment 1 of the present application.

[0025] Figure 3 is a schematic diagram of the overall structure of the posture adjusting device in embodiment 1 of the present application.

[0026] Figure 4 is a schematic diagram of the overall structure of the feeding bin in embodiment 1 of the present application.

[0027] Figure 5is the overall structure schematic view of the material bin in the embodiment 1 of the present application.

[0028] Figure 6 is the overall structure schematic view of the code scanning device in the embodiment 1 of the present application.

[0029] Figure 7 is the overall structure schematic view of the cleaning machine in the embodiment 1 of the present application.

[0030] Figure 8 is the overall structure exploded view of the cleaning seat and the locking seat in the embodiment 1 of the present application.

[0031] Figure 9 is the overall structure schematic view of the detection mechanism in the embodiment 1 of the present application.

[0032] Figure 10 is the overall structure schematic view of the third station in the embodiment 1 of the present application.

[0033] Figure 11 is the overall structure schematic view of the oil immersion machine and the drying machine in the embodiment 1 of the present application.

[0034] Figure 12 is the overall structure schematic view of the first robot in the embodiment 1 of the present application.

[0035] Figure 13 is the overall structure schematic view of the first robot upper clamping jaw in the embodiment 1 of the present application.

[0036] Figure 14 is the overall structure schematic view of the second robot in the embodiment 1 of the present application.

[0037] Figure 15 is the overall structure schematic view of the second robot upper clamping jaw in the embodiment 1 of the present application.

[0038] Figure 16 is the overall structure schematic view of the second station in the embodiment 2 of the present application.

[0039] Figure 17 is the partial structure sectional view of the second station in the embodiment 2 of the present application.

[0040] Figure 18 is Figure 17 is the enlarged view of part A.

[0041] Explanation of reference signs: 1, cleaning machine; 2, oil immersion machine; 3, first station; 31, first placing seat; 32, detection mechanism; 321, first vertical seat; 322, mounting seat; 323, first photoelectric sensor group; 324, second photoelectric sensor group; 33, driving source; 4, second station; 41, second vertical seat; 42, second placing seat; 43, support table; 5, sliding seat; 6, support rod; 7, operation port; 8, cleaning disc; 9, cleaning seat; 10, cleaning gear rod; 11, locking seat; 12, sixth driving member; 13, drying machine; 14, drying seat; 15, drying gear rod; 16, third station; 161, support seat; 162, third placing seat; 163, drying gear rod; 17, first robot; 18, second robot; 19, mounting plate; 20, rotating clamp jaw; 201, mounting disc; 202, guide mounting rod; 203, centering clamp jaw; 204, third driving member; 21, transfer clamp jaw; 22, flat opening clamp jaw; 23, feeding bin; 231, feeding rack; 232, placing table; 24, sampling bin; 25, code scanning device; 251, code scanning rack; 252, code scanning seat; 253, code scanner; 26, discharging bin; 27, first placing station; 28, second placing station; 29, integrated table; 30, support rod; 34, matching jaw; 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 rod; 50, fixing plate; 51, sliding plate; 52, guide rod; 53, push spring; 54, gear; 55, rack; 56, ratchet wheel; 57, pawl; 58, housing; 59, one-way shaft; 60, planetary gear; 61, half shaft gear; 62, outer gear ring; 63, opening; 64, spline. DETAILED DESCRIPTION

[0042] The following will be described in detail Figures 2-18 The application will be further described in detail.

[0043] Example 1

[0044] The embodiment of the application discloses a post-treatment system for differential mechanism production. Referring to Figure 2The post-processing system for differential production comprises a feeding 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 adjusting device, a discharging bin 26 and a transfer device. The feeding bin 23 is used for storing the assembled differential. The sampling bin 24 is used for temporarily storing the differential. The code scanning device 25 is used for scanning the identification code on the differential. The cleaning machine 1 is used for cleaning the differential. The oil immersion machine 2 is used for oil sealing the differential after cleaning. The posture adjusting device is used for assisting in adjusting the posture of the differential. The drying machine 13 is used for drying the differential after oil immersion. The discharging bin 26 is used for storing the differential after post-processing. The transfer device is used for transferring the differential.

[0045] With reference to Figure 2 and Figure 3 Further, the posture adjusting device comprises an integrated table 29, a first station 3, a second station 4 and a third station 16. The integrated table 29 is placed on the ground. The first station 3 is used for adjusting the positions of the two opposite openings 63 on the differential housing 58. Specifically, the first station 3 comprises a first placing seat 31 and a detection mechanism 32. The first placing seat 31 is arranged on the integrated table 29 and used for placing the differential. The detection mechanism 32 is arranged on the integrated table 29 and used for detecting the presence of the differential housing 58 and the outer ring gear 62 on the two opposite sides of the first placing seat 31.

[0046] With reference to Figure 2 and Figure 3 The second station 4 is arranged on the integrated table 29 and used for adjusting the axial direction of the differential housing 58. The axial direction of the differential housing 58 on the second station 4 is parallel to the horizontal direction, and the two openings 63 on the differential housing 58 are arranged along the vertical direction. The third station 16 is also arranged on the integrated table 29 and used for adjusting the position of the half shaft gear 61 in the differential so as to facilitate the entry of the differential into the drying machine 13. The assembled differential passes through the feeding 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 discharging bin 26 in sequence through the transfer device.

[0047] With reference to Figure 2 and Figure 3 To facilitate the realization of production automation, the post-processing system further comprises 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 electrically connected with the PLC control platform.

[0048] In the production of automobile differential, the assembled differential is placed on the loading bin 23, and each assembled differential has an identification code. The differential on the loading bin 23 is transferred to the sampling bin 24 by the transfer device, so as to facilitate the sampling by the operator to judge the assembly quality of the differential. Then the differential on the sampling bin 24 is transferred to the code scanning device 25 by the transfer device, and the identification code on the differential is scanned by the code scanning device 25. After the scanning is completed, the differential is moved back to the sampling bin 24 by the transfer device, and then the differential on the sampling bin 24 after the scanning is moved into the cleaning machine 1 for cleaning.

[0049] After cleaning, the differential in the cleaning machine 1 is moved to the first station 3 of the posture adjusting device by the transfer device, and then the differential is adjusted until the detection mechanism 32 detects the presence of the differential outer ring gear 62 and does not detect the presence of the differential housing 58 on the opposite sides, proving that the two openings 63 on the differential housing 58 have been moved to the desired position. 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 vertically. Then the differential is moved into the oil immersion machine 2 for oil sealing treatment by the transfer device keeping the state of the differential on the second station 4. After the oil sealing and rust prevention 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 vertically distributed, the differential housing 58 will not be oil.

[0050] 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 differential on the third station 16 is moved into the drying machine 13 by the transfer device for drying. After drying, the differential is moved to the unloading bin 26 by the transfer device, thereby completing the post-processing process. The cooperation of the first station 3 and the second station 4 with the transfer device can quickly adjust the posture of the differential after the cleaning link to the posture in the oil immersion link. The cooperation of the third station 16 and the transfer device can quickly adjust the posture of the differential after the oil immersion link to the posture in the drying link, thereby improving the posture adjustment efficiency of the differential when entering different links to some extent, which helps to improve the processing efficiency.

[0051] Reference Figure 4For the convenience of storing the assembled differential, the feeding bin 23 comprises a feeding rack 231 and two placing tables 232, the two placing tables 232 are slidingly arranged on the feeding rack 231 along the length direction of the feeding rack 231, and the two placing tables 232 are located at different horizontal planes, each placing table 232 is provided with a plurality of first placing stations 27, the plurality of first placing stations 27 are arranged in a matrix, the number of rows and columns of the plurality of first placing stations 27 on each placing table 232 is greater than three, and each first placing station 27 is used for supporting the differential, when the differential is located on the first placing station 27, the axis of the differential housing 58 is in the vertical direction. Further, for the convenience of moving the placing table 232, the two placing tables 232 can be manually pushed to move in opposite directions to exchange positions, or can be driven to move in opposite directions by a pneumatic cylinder, an electric cylinder, a conveying chain or the like, which is not limited here.

[0052] The plurality of assembled differentials are placed on the first placing stations 27 of the placing tables 232, which can facilitate the transfer device to take the materials, and the positions of the two placing tables 232 are exchanged to facilitate the taking of the differentials on one of the placing tables 232 without affecting the taking of the differentials on the other placing table 232 when the other placing table 232 is being fed.

[0053] Referring to Figure 2 and Figure 5 For the convenience of sampling inspection of the differentials, the sampling bin 24 is provided with a plurality of second placing stations 28, the plurality of second placing stations 28 are arranged in a matrix, the second placing station 28 has the same structure as the first placing station 27, and when the differential is located on the second placing station 28, the axis of the differential housing 58 is in the vertical direction. Since the differentials at the sampling bin 24 have entered the post-processing process, the sampling bin 24 does not need to be designed with many second placing stations 28. In order to reduce the occupied space, the number of rows of the plurality of second placing stations 28 is less than or equal to two, and in the embodiment of the application, the number of rows of the plurality of second placing stations 28 is two.

[0054] Referring to Figure 6 For the convenience of scanning the codes of the differentials, the code scanning device 25 comprises a code scanning rack 251, a code scanning seat 252 and a code scanning instrument 253, the code scanning seat 252 is fixed on the code scanning rack 251, when the differential is located on the code scanning seat 252, the axis of the differential housing 58 is in the vertical direction; the code scanning instrument 253 is installed on the code scanning rack 251 and located directly above the code scanning seat 252, and the code scanning instrument 253 is electrically connected with the PLC control platform. The specific structure and principle of the code scanning instrument 253 are prior art, which will not be described here. In order to determine whether the differential at the code scanning device 25 is in place, an infrared detector can also be arranged on the code scanning rack 251.

[0055] The differential on the second placing station 28 is placed on the code scanning seat 252 through the transferring device, and the identification code such as the two-dimensional code or the DPM code on the differential is scanned through the code scanner 253, so that the information of the differential to be cleaned and rust-proof treated can be acquired, and the product whole life cycle quality traceability is improved.

[0056] With reference to Figure 7 Specifically, the cleaning machine 1 has an operation opening 7 for placing or taking out the differential, and the cleaning machine 1 is provided with a cleaning disc 8 rotating in the vertical direction, and the cleaning machine 1 is provided with a fourth driving member for driving the cleaning disc 8 to rotate, which can be one of a reduction motor, a servo motor and a driving motor, and is not limited here; and the fourth driving member is electrically connected with the PLC control platform.

[0057] With reference to Figure 7 and Figure 8 The cleaning disc 8 is provided with a plurality of cleaning seats 9 rotating in the vertical direction, and the plurality of cleaning seats 9 are arranged in the circumferential direction of the cleaning disc 8 at intervals, and when the differential is located on the cleaning seat 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 corresponding to the cleaning seats 9 one by one, each support group includes a plurality of support rods 30 fixed on the cleaning disc 8, and the plurality of support rods 30 are arranged in the circumferential direction of the corresponding cleaning seat 9 at intervals. A plurality of cleaning gear rods 10 are fixedly arranged on each cleaning seat 9, and in the embodiment of the present application, three cleaning gear rods 10 are arranged on each cleaning seat 9, and the three cleaning gear rods 10 are used for meshing with the spline 64 in the differential half shaft gear 61.

[0058] With reference to Figure 7 and Figure 8The cleaning machine 1 is provided with a plurality of cleaning positions, the cleaning positions are one-to-one corresponding to the cleaning seats 9 on the cleaning disc 8 inside the cleaning machine 1, and the cleaning seat 9 at the operating port 7 is located outside the cleaning machine 1, so that the differential gears on the cleaning seat 9 at 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, the cleaning machine 1 is provided with a fifth driving element for driving the cleaning seat 9 to rotate, specifically, the fifth driving element can adopt a driving motor that can be lifted, or a driving motor that can be horizontally moved, a matching seat for mutually engaging with the matching claw 34 is arranged on the output shaft of the driving motor, the driving motor is provided with a plurality of driving motors, the driving motors are one-to-one corresponding to the cleaning positions, so as to drive the cleaning seat 9 outside the operating port 7 on the cleaning disc 8 to rotate; the fifth driving element is electrically connected with the PLC control platform. Further, in order to facilitate high-pressure cleaning of the differential gears, a plurality of high-pressure cleaning groups are arranged in the cleaning machine 1, the high-pressure cleaning groups are one-to-one corresponding to the cleaning positions, the high-pressure cleaning groups are used for washing the differential gears on the cleaning seat 9 at the corresponding cleaning position, the high-pressure cleaning group comprises a plurality of high-pressure spray heads, the high-pressure spray heads are used for communicating with external high-pressure cleaning liquid, the high-pressure spray heads are electrically connected with the PLC control platform; specifically, the structure and principle in the cleaning machine 1 belong to the related art, and will not be described here.

[0059] In use, after the differential gears are placed on the cleaning seat 9 at the operating port 7 through the transfer device, at this time, the plurality of cleaning toothed rods 10 on the cleaning seat 9 at the operating port 7 are engaged with the spline 64 inside the differential gear half shaft gear 61, the feeding of the differential gears in the cleaning machine 1 is completed; then the driving motor of the fifth driving element is driven to move away from the cleaning seat 9 at the corresponding cleaning position, so that the matching seat is separated from the matching claw 34, and the rotation of the cleaning disc 8 is not affected, then the cleaning disc 8 is driven to rotate through the fourth driving element, so that the cleaning seat 9 on the cleaning disc 8 drives the just fed differential gears to move into the cleaning position inside the cleaning machine 1, and the cleaning seat 9 where the cleaning is completed is moved to the operating port 7 for unloading; when the cleaning seat 9 where the differential gears to be cleaned are located moves to the corresponding cleaning position, the driving motor of the fifth driving element is driven to move close to the cleaning seat 9 at the corresponding cleaning position, so that the matching seat of the driving motor is engaged with the matching claw 34 on the cleaning seat 9 at the corresponding position, then the driving motor is started, 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 gear to rotate through the plurality of cleaning toothed rods 10, and the shell 58 of the differential gear does not rotate, so that the planetary gear 60 in the differential gear also rotates, the high-pressure spray head of the cleaning position performs high-pressure washing on the differential gears at the cleaning position, since the gear set in the differential gear shell 58 rotates continuously, efficient cleaning can be achieved, and the cleaning effect is good.

[0060] 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.

[0061] 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.

[0062] 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. The integrated table 29 is provided with a driving source 33, which 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.

[0063] 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.

[0064] With reference to Figure 3 and Figure 9To facilitate detection of 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.

[0065] 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.

[0066] 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 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.

[0067] With reference to Figure 3 and Figure 9, specifically, the first photoelectric sensor and the second photoelectric sensor are both infrared sensors, the emitting end of the second photoelectric sensor is arranged on the corresponding sliding seat 5, the receiving end of the second photoelectric sensor is arranged on the supporting rod 6 of the corresponding sliding seat 5, and the first placing seat 31 is located between the emitting end and the receiving end of the second photoelectric sensor; the emitting end of the first photoelectric sensor is arranged on the corresponding supporting rod 6, and the receiving end is arranged on another supporting rod 6 or the receiving end is also arranged on the corresponding supporting rod 6, which can realize detection of the differential housing 58 and the outer gear ring 62.

[0068] In use, first, the mounting seat 322 is adjusted to the required height by the first driving member, so that the optical axis of the first photoelectric sensor on the supporting rod 6 is aligned with the preset position of the differential outer gear ring 62 on the first placing seat 31; then, the two sliding seats 5 on the mounting seat 322 are adjusted to the required position by the second driving member, so that the distance between the 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 two side walls of the differential housing 58. At this time, the detection mechanism 32 is in working condition.

[0069] When the differential is placed on the first placing seat 31, the first photoelectric sensor is used to detect whether the differential outer gear ring 62 exists, so as to determine whether the differential is in place. If the first photoelectric sensor detects the differential outer gear ring 62, it proves that the differential has been placed on the first placing seat 31. Then, the first placing seat 31 drives the differential to rotate by the driving source 33, and the second photoelectric sensor is used to detect the existence of the differential housing 58. If the second photoelectric sensor does not detect the differential housing 58, it proves that the two openings 63 on the differential housing 58 are moved to the required direction at this time, so as to facilitate the subsequent entry of the two openings 63 on the differential into the oil immersion machine 2 in the required direction by the shifting device.

[0070] Referring to Figure 9 In order to facilitate the sliding of the mounting seat 322, the first driving member includes a first screw rod 37 rotatably penetrating 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, and the mounting seat 322 and the first vertical seat 321 are matched by guide rails, so that the mounting seat 322 will not rotate with the rotation of the first screw rod 37; the top end of the first screw rod 37 is fixed with a first hand wheel 38, so as to facilitate the rotation of the first screw rod 37 by the operator.

[0071] When it is needed to adjust the position of the mounting base 322, the operator rotates the first hand wheel 38, the first hand wheel 38 drives the first lead screw 37 to rotate, the first lead screw 37 drives the mounting base 322 to move in the vertical direction, so as to adjust the position of the mounting base 322 according to different sizes of the differential, and after the mounting base 322 is adjusted to the required position, the position of the mounting base 322 is relatively fixed through the self-locking thread of the mounting base 322 and the first lead screw 37.

[0072] With reference to Figure 9 In order to drive the two sliding seats 5 to slide, the second driving member includes a bidirectional lead screw 39 which is rotatably arranged on the mounting base 322, the rotation axis of the bidirectional lead screw 39 is parallel to the sliding direction of the sliding seat 5, the two sliding seats 5 are respectively threadedly sleeved on the two ends of the bidirectional lead screw 39, and specifically, the sliding seat 5 is matched with the mounting base 322 through a guide rail, so that the sliding seat 5 will not rotate with the rotation of the bidirectional lead screw 39; the end of the bidirectional lead screw 39 is fixedly provided with a second hand wheel 40, so as to facilitate the operator to rotate the bidirectional lead screw 39.

[0073] When it is needed to adjust the position of the sliding seat 5, the operator rotates the second hand wheel 40, the second hand wheel 40 drives the bidirectional lead screw 39 to rotate, the bidirectional lead screw 39 drives the two sliding seats 5 to move close to or away from each other, so as to adjust the position of the sliding seat 5 according to different sizes of the differential, and 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 lead screw 39.

[0074] With reference to Figure 3 In order to facilitate the adjustment of the axis direction of the differential, the second station 4 includes a second vertical seat 41, a second placing seat 42 and a support table 43, wherein the second vertical seat 41 is fixed on the integrated table 29, the upper surface of the second vertical seat 41 is higher than the first placing seat 31, so as to facilitate the transverse placement of the differential; the second placing seat 42 is fixed on the second vertical seat 41, the second placing seat 42 is provided with a V-shaped groove on the upper surface, so as to facilitate the placement of the outer ring gear 62 of the differential; the support table 43 is provided with two, the two support tables 43 are respectively located on the opposite sides of the second placing seat 42, the upper surfaces of the two support tables 43 are respectively provided with support curved surfaces, and the two support tables 43 are respectively used for supporting the two output ends of the differential housing 58, and specifically, the arrangement direction of the two support tables 43 is parallel to the arrangement direction of the first station 3 and the second station 4.

[0075] When the outer ring gear 62 of the differential abuts against the V-shaped groove of the second placement seat 42, the two ends of the differential housing 58 abut against the support curved surfaces of the two support tables 43, at this time, the axis of the differential housing 58 is in the horizontal direction, by transferring the differential on the first station 3 to the second station 4, the axis of the differential can be quickly adjusted to be in the horizontal direction, and meanwhile, the two openings 63 on the differential housing 58 are in the downward distribution state to enter the oil immersion machine 2, thereby avoiding the oil scooping of the differential housing 58.

[0076] With reference to Figure 11 In order to facilitate the oil sealing treatment of the differential, the oil immersion machine 2 is provided with an oil immersion seat 44 for supporting the differential, in the embodiment of the present application, the oil immersion machine 2 is provided with two oil immersion stations, and the oil immersion seat 44 corresponds to the oil immersion station one by one, when the differential is placed on the oil immersion seat 44, the axis of the differential housing 58 is in the horizontal direction, so that the internal cavity of the differential is completely covered by the rust-proof oil; the specific structure and principle of the oil immersion machine 2 belong to the prior art, and will not be described here; the oil immersion machine 2 is electrically connected with the PLC control platform.

[0077] After the differential is placed on the corresponding oil immersion seat 44 by the transferring device, at this time, the openings 63 on the two sides of the differential housing 58 are in the upward and downward distribution, the oil immersion machine 2 drives the door to be closed, fills the rust-proof oil to the oil immersion station to seal the differential, after the sealing is completed, the rust-proof oil is discharged from the oil immersion station, then the door of the oil immersion machine 2 is opened, and then the transferring device can take out the differential after the oil immersion treatment.

[0078] With reference to Figure 11 In order to facilitate the drying of the differential, the drying machine 13 is provided with a drying seat 14 rotating 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; the drying machine 13 is provided with a seventh driving member for driving the drying seat 14 to rotate, the seventh driving member can adopt one of a reduction motor, a servo motor and a driving motor, and will not be limited here, the drying seat 14 is coaxially fixed with the output shaft of the seventh driving member, wherein the drying machine 13 belongs to the prior art and will not be described here; the drying machine 13 and the seventh driving member are electrically connected with the PLC control platform.

[0079] With reference to Figure 11 A plurality of drying toothed rods 15 are fixed on the drying seat 14, and the plurality of drying toothed rods 15 are used for meshing with the spline 64 in the differential half shaft gear 61, in order to facilitate the drying without rotating the differential housing 58, a plurality of support rod bodies for supporting the differential outer ring gear 62 are fixed in the drying machine 13, and the plurality of support rod bodies are arranged in the circumferential direction of the drying seat 14.

[0080] When the differential is placed on the drying seat 14, at this time the plurality of drying gear rods 15 are engaged with the splines 64 in the differential side gear 61, the seventh driving member drives the drying seat 14 to rotate, and the drying seat 14 drives the differential side gear 61 to rotate through the plurality of drying gear rods 15, so that the planetary gear 60 in the differential rotates with the differential side gear 61 under the condition that the differential housing 58 is relatively stationary, which helps to improve the drying effect and efficiency.

[0081] Referring to Figure 3 , Figure 10 and Figure 11 , in order to facilitate the differential to be smoothly placed in the drying machine 13, the third station 16 includes a support seat 161, a third placing seat 162, drying gear rods 163 and an anti-rotation member, the support seat 161 is fixedly arranged on the integrated table 29, and the support seat 161 is located between the first station 3 and the second station 4; the third placing seat 162 is arranged on the support seat 161 in a vertical direction, the drying gear rods 163 are fixedly arranged on the third placing seat 162, and the drying gear rods 163 are arranged in a plurality along the center of the support seat 161, and the plurality of drying gear rods 163 are used to engage with the splines 64 in the differential side gear 61; when the differential is located on the third placing seat 162, the axis of the differential housing 58 is in a vertical direction; and the anti-rotation member is arranged on the support seat 161, and is used to lock or release the position of the third placing seat 162.

[0082] In use, the third placing seat 162 is rotated to rotate the plurality of drying gear rods 163 to a required position, then the third placing seat 162 is relatively fixed with the support seat 161 through the anti-rotation member, then the differential is placed on the third placing seat 162 through the transfer device, and the plurality of drying gear rods 163 are engaged with the splines 64 in the differential side gear 61, at this time the differential is in a required state, and the differential can be moved into the drying machine 13 through the transfer device.

[0083] Referring to Figure 3 and Figure 10 , in order to facilitate the locking or releasing of the position of the third placing seat 162, the anti-rotation member includes a pressing block arranged on the support seat 161 in a rotating manner, the rotating axis of the pressing block is parallel to the rotating axis of the third placing seat 162, the pressing block is used to abut against the upper surface of the third placing seat 162, and a clamping bolt for clamping the third placing seat 162 is arranged on the pressing block; in other embodiments, the pressing block can be replaced by a clamping screw, the clamping screw is threadedly arranged on the third placing seat 162, and the clamping screw is used to abut against or be separated from the support seat 161.

[0084] When it is needed to limit the rotation of the third placing seat 162, the pressing block is rotated towards the direction close to the third placing seat 162, and the pressing block is abutted with the upper surface of the third placing seat 162, then the abutting bolt is rotated to press the third placing seat 162; when it is needed to rotate the third placing seat 162, the pressing block is rotated towards the direction away from the third placing seat 162, then the abutting bolt is reversely rotated to be separated from the third placing seat 162, and then the pressing block is separated from the upper surface of the third placing seat 162.

[0085] With reference to Figure 2 and Figure 12 In order to facilitate the transfer of the differential, the transfer device comprises a first robot 17 and a second robot 18, and the first robot 17 and the second robot 18 are electrically connected with the PLC control platform; the first robot 17 and the second robot 18 are both six-axis robots, which can move in multiple degrees of freedom, and the six-axis robot is a prior art, and its structure and principle will not be described in detail here. In order to facilitate the use of the first robot 17 and the second robot 18, the cleaning machine 1, the oil immersion machine 2 and the drying machine 13 are arranged in sequence and side by side, the feeding 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, and the arrangement direction of the feeding bin 23 and the sampling bin 24 is perpendicular to the arrangement direction of the cleaning machine 1, the oil immersion machine 2 and the drying machine 13, the posture adjusting device is aligned with the middle position of the cleaning machine 1 and the oil immersion machine 2, and the discharging bin 26 is located on the side of the drying machine 13 away from the cleaning machine 1; in order to facilitate sampling after post-processing, the sampling bin 24 can be arranged as needed near the discharging bin 26. Further, the first robot 17 is located in the space surrounded by the feeding bin 23, the cleaning machine 1 and the posture adjusting device, and the second robot 18 is located in the space surrounded by the discharging bin 26, the drying machine 13, the oil immersion machine 2 and the posture adjusting device.

[0086] With reference to Figure 12 and Figure 14 The execution end of the first robot 17 and the second robot 18 is fixedly provided with a mounting plate 19, and the mounting plate 19 is installed with a rotating clamp jaw 20 and a transfer clamp jaw 21, wherein the transfer clamp jaw 21 is a three-jaw clamp jaw, which is used for clamping the outer ring gear 62 of the differential, and the three-jaw clamp jaw is a prior art, and its structure and principle will not be described in detail here. The rotating clamp jaw 20 is used for clamping the outer ring gear 62 of the differential to drive the differential to rotate along the axis thereof, and the mounting plate 19 of the second robot 18 is further installed with a flat opening clamp jaw 22, which is used for clamping two output ends of the differential housing 58 to transfer the differential. Specifically, the flat opening clamp jaw 22 is a two-finger clamp jaw, and the two fingers of the flat opening clamp jaw 22 are close to or away from each other, and are used for extending into the two output ends of the differential housing 58, and the two-finger clamp jaw is a prior art, and its structure and principle will not be described in detail here.

[0087] With reference to Figure 12 and Figure 13For facilitating rotation of the differential along its own axis, the rotating gripper 20 comprises a mounting disc 201, guide mounting rods 202, a centering gripper 203 and a third driving member 204. The mounting disc 201 is rotatably arranged below the corresponding mounting plate 19 through bearings, and the rotation axis of the mounting disc 201 is perpendicular to the plane of the corresponding mounting plate 19. A plurality of guide mounting rods 202 are arranged, and the guide mounting rods 202 are all slidably arranged on the mounting disc 201. The sliding direction of the guide mounting rods 202 is parallel to the rotation axis of the mounting disc 201. The centering gripper 203 is fixedly arranged below the guide mounting rods 202, and the mounting disc 201 and the centering gripper 203 are concentrically arranged. For facilitating resetting of the centering gripper 203 and stability of the centering gripper 203, a spring is arranged on the upper end of the guide mounting rod 202, one end of the spring is fixed on the guide mounting rod 202, and the other end is fixed on the upper surface of the mounting disc 201. The spring is used to drive the centering gripper 203 to move downward. The third driving member 204 is arranged above the mounting plate 19, and the third driving member 204 is used to drive the mounting disc 201 to rotate. Specifically, the third driving member 204 is a rotary cylinder, the mounting disc 201 is connected with the output end of the rotary cylinder, the centering gripper 203 is a three-jaw gripper, and the structure and principle thereof are the same as those of the transferring gripper 21. Moreover, the bottom of the rotating gripper 20 is lower than the bottom of the transferring gripper 21. For facilitating detection of the position of the centering gripper 203, a position sensor for detecting the position of the centering gripper 203 is further arranged on the mounting disc 201. The centering gripper 203, the transferring gripper 21 and the flat-opening gripper 22 are all electrically connected with the PLC control platform.

[0088] Since the first robot 17 is provided with the rotating gripper 20 and the transfer gripper 21, the rotating gripper 20 is used to move the differential on the upper feeding bin 23 to the sampling bin 24 to avoid interference, the third driving member 204 on the upper end of the mounting plate 19 at the rotating gripper 20 is higher than the upper surface of the transfer gripper 21, so that the third driving member 204 on the rotating gripper 20 does not interfere with the code scanner 253 on the code scanning device 25, and then the transfer gripper 21 is used to move the differential on the sampling bin 24 to the code scanning device 25, and then the rotating gripper 20 of the first robot 17 is used to move the differential after code scanning on the sampling bin 24 to the cleaning seat 9 of the cleaning machine 1, and the differential is rotated along the axis by the rotating gripper 20 until the cleaning tooth rod 10 on the cleaning seat 9 is engaged with the spline 64 on the inner wall of the differential half shaft gear 61, and the feeding on the cleaning machine 1 is completed.

[0089] Since the second station 4 does not need to be toothed and is not limited by space, the differential from the first station 3 to the second station 4 can use the rotating gripper 20 or the transfer gripper 21 on the second robot 18, the differential is in a transverse state when entering the oil immersion machine 2, so the flat opening gripper 22 on the second robot 18 is used to move the differential into or out of the oil immersion machine 2, the differential needs to be toothed at the third station 16, so the rotating gripper 20 on the second robot 18 is used to move the differential to the third station 16, and since the entrance of the drying machine 13 is small, to avoid interference, the transfer gripper 21 on the second robot 18 is used to move the differential into or out of the drying machine 13.

[0090] Referring to Figure 15 , the mounting plate 19 on the second robot 18 is cross-shaped, the flat opening gripper 22 on the second robot 18 is provided with two, the rotating gripper 20, the transfer gripper 21 and the two flat opening grippers 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 gripper 21 to the center of the mounting plate 19, the distance from the flat opening gripper 22 to the center of the mounting plate 19, and the distance from the rotating gripper 20 to the center of the mounting plate 19 decrease in turn. The transfer gripper 21 is designed to be relatively far from the center of the mounting plate 19, which helps to put the differential into the drying machine 13.

[0091] 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 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 and the mounting disc 201 slide relative to each other under the abutment 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 slide relative to each other, which proves that the toothed engagement is unsuccessful, then the mounting disc 201 drives the centering gripper 203 and the differential to rotate 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, and the spline 64 of the half shaft gear 61 in the differential is engaged with the plurality of cleaning toothed rods 10.

[0092] Then the sixth driving member 12 is started to drive the locking seat 11 to move away from the cleaning seat 9 at the operation port 7, so that the locking seat 11 is separated from the aligned cleaning seat 9, and then the driving motor of the fifth driving member is driven to move away from the cleaning seat 9 at the corresponding cleaning position, so that the matching seat is separated from the matching claw 34, and then the fourth driving member is started to drive the cleaning disc 8 to rotate, so that the cleaning disc 8 drives the just loaded differential to move into the cleaning position in the cleaning machine 1, and the cleaned differential is moved to the operation port 7 for unloading. When the differential to be cleaned is moved to the corresponding cleaning position, the driving motor of the fifth driving member is driven to move close to the cleaning seat 9 at the corresponding cleaning position, so that the matching seat of the driving motor is engaged with the matching claw 34 on the cleaning seat 9 at the corresponding position. 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 the plurality of cleaning gear rods 10, so that the planetary gear 60 in the differential also rotates, and the shell 58 of the differential is relatively fixed. The high-pressure spray head at the cleaning position sprays high-pressure water on the differential at the cleaning position.

[0093] The cleaned differential at the operation port 7 is moved to the first placing seat 31 of the first working position 3 by the rotating gripper 20 or the transfer gripper 21 of the first robot 17. The first photoelectric sensor detects whether the outer gear ring 62 of the differential exists, so as to determine whether the differential is in place. If the first photoelectric sensor detects the outer gear ring 62 of the differential, it proves that the differential has been placed on the first placing seat 31. Then the first placing seat 31 is driven to rotate by the driving source 33, and the second photoelectric sensor detects whether the differential shell 58 exists. If the second photoelectric sensor does not detect the differential shell 58, it proves that the differential shell 58 moves to the required direction at this time. When the arrangement direction of the differential shell 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 shell 58.

[0094] Then the adjusted differential on the first working position 3 is moved to the second placing seat 42 of the second working position 4 by the rotating gripper 20 or the transfer gripper 21 of the second robot 18, so that the axis of the differential shell 58 is in the horizontal direction, and the two openings 63 on the differential shell 58 are distributed in the upper and lower directions. Then the opposite two output ends of the differential shell 58 are clamped by the flat opening gripper 22 of the second robot 18, the differential is kept on the second placing seat 42, and is moved to the oil immersion seat 44 of the oil immersion machine 2. Then the machine door of the oil immersion machine 2 is closed, the oil immersion working position is filled with rust-proof oil, the differential is sealed by oil, the rust-proof oil is discharged from the oil immersion working position, the machine door of the oil immersion machine 2 is opened, and then the differential after the oil immersion treatment is taken out to the second working position 4 by the flat opening gripper 22 of the second robot 18.

[0095] Then the differential on the second station 4 is moved to the third station 16 by the rotating gripper 20 of the second robot 18, and the rotating gripper 20 can drive the differential to rotate until the spline 64 of the half shaft gear 61 in the differential is engaged with the plurality of drying indexing rods 163, and then the differential on the third placement seat 162 is moved to the plurality of drying indexing rods 15 of the drying seat 14 by the transfer gripper 21 of the second robot 18, so that the spline 64 of the half shaft gear 61 in the differential is engaged with the plurality of drying indexing rods 15, and the transfer of the transfer gripper 21 of the second robot 18 can avoid the interference between the third driving element 204 of the rotating gripper 20 and the body of the drying machine 13; after drying, the differential is moved to the discharge bin 26 by the transfer gripper 21 of the second robot 18, so as to complete the post-processing process.

[0096] The differential after the cleaning link can be quickly adjusted to the required attitude of the oil immersion link by the cooperation of the first station 3, the second station 4 and the third station 16, and the gripper on the first robot 17 and the second robot 18, and then the attitude of the differential after the oil immersion link is quickly adjusted to the required attitude in the drying link, so that the attitude adjustment efficiency of the differential entering different links is improved to a certain extent, and the processing efficiency is improved.

[0097] Embodiment 2:

[0098] With reference to Figure 16 and Figure 17 The difference between this embodiment and embodiment 1 is that the second stand 41 is provided with two installation groups on opposite sides, the arrangement direction of the two installation groups is perpendicular to the arrangement direction of the two supporting tables 43, the second placement seat 42 is located between the two installation groups, each installation group comprises two first supporting plates 45 and two second supporting plates 46 arranged oppositely, the arrangement direction of the two first supporting plates 45 and the arrangement direction of the two second supporting plates 46 are parallel to the arrangement direction of the two supporting tables 43, and the two second supporting plates 46 are located between the two first supporting plates 45.

[0099] With reference to Figure 16 and Figure 17The transmission block 47 is located between the two second supporting plates 46, and the cleaning sponges 48 are detachably fixed between the transmission blocks 47 of the two installation groups through connecting rods. The cleaning sponges 48 are used for wiping oil or water on the second placing seat 42. The shape of the cleaning sponge 48 is matched with the V-shaped groove on the second placing seat 42, so that the second placing seat 42 can be cleaned through the V-shaped groove. The cleaning sponge 48 is detachably connected with the transmission block 47, so that the cleaning sponge 48 can be replaced regularly. The cleaning sponge 48 is not easy to interfere with the second placing seat 42. The two first supporting plates 45 are provided with a sliding part for driving the transmission block 47 to slide.

[0100] With reference to Figure 17 and Figure 18 In order to drive the transmission block 47 to slide, the sliding part includes a reciprocating screw 49 rotatably arranged between the corresponding two first supporting plates 45. The two second supporting plates 46 are provided with perforations for allowing the reciprocating screw 49 to move through. The transmission block 47 is threadedly sleeved on the corresponding reciprocating screw 49. The reciprocating movement of the transmission block 47 can be realized by driving the reciprocating screw 49 to rotate in one direction. The end of the reciprocating screw 49 is threadedly offset from the second placing seat 42, so that the cleaning sponge 48 is located between the second placing seat 42 and any supporting table 43 when the cleaning sponge 48 is not in use.

[0101] With reference to Figure 16 and Figure 17 In order to facilitate the rotation of the reciprocating screw 49, the supporting table 43 includes a fixed plate 50 and a sliding plate 51. The fixed plate 50 is fixedly arranged on the second stand 41. The second placing seat 42 is located between the fixed plates 50 of the two supporting tables 43. The sliding plate 51 is slidably arranged in the corresponding fixed plate 50 in the vertical direction. A supporting arc surface is arranged on the upper surface of the sliding plate 51, and the sliding plate 51 is used for supporting the output end of the differential housing 58. In order to guide the sliding of the sliding plate 51, a guide rod 52 is fixedly arranged in the fixed plate 50. 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 placing seat 42, so as to realize the support of the differential by the second placing seat 42 and the sliding plate 51.

[0102] With reference to Figure 17 The fixed plate 50 is provided with a push spring 53 for pushing the sliding plate 51 to move 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 towards the fixed plate 50. The gravity of the differential is much greater than the sum of the elastic forces of the push spring 53.

[0103] When the differential is gradually placed on the second placing seat 42, the differential drives the sliding plate 51 to move downward, compresses the push spring 53, until the differential abuts against the V-shaped groove on the second placing 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, so as to stably support the differential; 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 pushing force of the push spring 53, the sliding plate 51 can be gradually moved upward, until the push spring 53 is in a natural state.

[0104] With reference to Figure 17 and Figure 18 In order to make the sliding of the sliding plate 51 drive the rotation of the reciprocating screw 49, the second supporting plate 46 is rotationally connected with a gear 54, the reciprocating screw 49 is coaxially rotationally arranged in the gear 54 on the corresponding side, the sliding plate 51 is fixed with a rack 55, 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 the rack 55 is used for meshing with the corresponding gear 54; the gear 54 is fixed with a ratchet wheel 56, the ratchet wheel 56 adopts an inner ratchet wheel ring, that is, the ratchet teeth of the ratchet wheel 56 are located in the inner ring, the reciprocating screw 49 is hingedly connected with a pawl 57, the pawl 57 corresponds to the ratchet wheel 56 one by one, a torsion spring or an elastic sheet for resetting the pawl 57 is arranged between the reciprocating screw 49 and the pawl 57, the pawl 57 meshes with the corresponding ratchet wheel 56, and the elastic force of the push spring 53 is far greater than the sum of the friction force between the rack 55 and the gear 54 and the friction force of the rotation of the reciprocating screw 49.

[0105] With reference to Figure 17 and Figure 18 Specifically, when the sliding plate 51 drives the rack 55 to move downward, 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 wheel 56, at this time the reciprocating screw 49 does not rotate; and when the sliding plate 51 drives the rack 55 to move upward and drives the gear 54 to rotate, the gear 54 drives the reciprocating screw 49 to rotate continuously through the cooperation of the ratchet wheel 56 and the pawl 57, so that the reciprocating screw 49 drives the transmission block 47 to slide, so as to move the cleaning sponge 48 from one end of the reciprocating screw 49 to the other end to wipe the oil or water just adhered on the second placing seat 42, so as to ensure the cleanliness of the second placing seat 42 and not to easily affect the oil immersion effect. When the sliding plate 51 abuts against the top end of the guide rod 52, the rack 55 is disengaged from the gear 54, so that the sliding plate 51 moves upward by a certain distance, and then the transmission block 47 slides, so as to ensure that the cleaning sponge 48 does not interfere with the differential. In the process from the state that the sliding plate 51 abuts against 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, the transmission block 47 moves from one end of the reciprocating screw 49 to the other end each time the sliding plate 51 moves upward.

[0106] 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 drives the sliding plate 51 to move downward, gradually compresses 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 does 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.

[0107] 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, 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.

[0108] 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-treatment system for differential production, characterized by, include: Cleaning machine (1), the cleaning machine (1) is used to clean the differential; Oil immersion machine (2), the oil immersion machine (2) is used to oil seal the differential after cleaning; The attitude adjustment device is used to assist in adjusting the attitude of the differential. The attitude adjustment device includes a first station (3) and a second station (4). The first station (3) is used to adjust the position of the two openings (63) on the 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 the differential housing (58) on the opposite sides and the 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 for transferring a differential; The assembled differential passes through the transfer device in sequence through the cleaning machine (1), the first station (3), the second station (4), and the oil immersion machine (2).

2. A post-treatment system for differential production according to claim 1, characterized in that: The detection mechanism (32) includes a first stand (321), a mounting base (322), a first photoelectric sensor group (323), and a second photoelectric sensor group (324). The mounting base (322) is disposed on the first stand (321). The first photoelectric sensor group (323) and the second photoelectric sensor group (324) are both mounted on the mounting base (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. A post-treatment system for differential production according to claim 2, characterized in that: The mounting base (322) is slidably mounted on the first upright (321) in the vertical direction. The first upright (321) is provided with a first driving member for driving the mounting base (322) to slide. The mounting base (322) has two sliding seats (5) slidably mounted on each other in the horizontal direction. The mounting base (322) is provided with a second driving member for driving the two sliding seats (5) to move closer or further apart from each other. The second photoelectric sensor group (324) includes a second photoelectric sensor. The second photoelectric sensor corresponds one-to-one with the sliding seat (5). The second photoelectric sensor is mounted 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 one-to-one with the support rod (6). The first photoelectric sensor is mounted 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. The optical axis of the first photoelectric sensor is parallel to the sliding direction of the sliding seat (5).

4. The post-treatment system for differential production according to claim 1, characterized in that: The cleaning machine (1) has an operation opening (7) for putting or taking out the differential, a cleaning disc (8) is arranged in the cleaning machine (1) and rotates in the vertical direction, a fourth driving member is arranged in the cleaning machine (1) and drives the cleaning disc (8) to rotate, a plurality of cleaning seats (9) are arranged on the cleaning disc (8) and rotate in the vertical direction, a plurality of cleaning toothed rods (10) are arranged on each cleaning seat (9), the plurality of cleaning toothed rods (10) are used for meshing with the spline (64) in the differential half axle gear (61), and a fifth driving member is arranged in the cleaning machine (1) and drives the cleaning seat (9) to rotate.

5. A post-treatment system for differential production according to claim 4, characterized in that: The operation opening (7) of the cleaning machine (1) is slidably provided with a locking seat (11), 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 for abutting against the cleaning seat (9) at the operation opening (7) to inhibit the rotation of the cleaning seat (9), and a sixth driving member (12) is arranged in the cleaning machine (1) and drives the locking seat (11) to slide towards or away from the cleaning seat (9) at the operation opening (7).

6. A post-treatment system for differential production according to any of claims 1-5, characterized in that: The post-processing system further comprises a drying machine (13) for drying the differential, a drying seat (14) for placing the differential is arranged in the drying machine (13) and rotates, a plurality of drying toothed rods (15) are arranged on the drying seat (14), the plurality of drying toothed rods (15) are used for meshing with the spline (64) in the differential half axle gear (61), and a seventh driving member is arranged in the drying machine (13) and drives the drying seat (14) to rotate; the posture adjusting device further comprises a third station (16), the third station (16) comprises a supporting seat (161), a third placing seat (162) arranged on the supporting seat (161) and rotating, a plurality of drying toothed rods (163) arranged on the third placing seat (162), and an anti-rotation member arranged on the supporting seat (161), the rotation axis of the third placing seat (162) is arranged in the vertical direction, the plurality of drying toothed rods (163) are used for meshing with the spline (64) in the differential half axle gear (61), and the anti-rotation member is used for locking or unlocking the third placing seat (162).

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

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

9. The post-treatment system for differential production according to claim 7, characterized in that: The mounting plate (19) on the second robot (18) is cross-shaped, the flat opening clamp (22) on the second robot (18) is provided with two, the rotating clamp (20), the transfer clamp (21) and the two flat opening clamps (22) on the second robot (18) are respectively located at the four end portions of the mounting plate (19) on the second robot (18), and the distance from the transfer clamp (21) to the center of the mounting plate (19), the distance from the flat opening clamp (22) to the center of the mounting plate (19), and the distance from the rotating clamp (20) to the center of the mounting plate (19) decrease in turn.

10. The post-treatment system for differential production according to claim 7, characterized in that: The post-processing system further comprises a feeding bin (23), a sampling bin (24), a code scanning device (25) and a discharging bin (26), the feeding bin (23) is used for storing the assembled differential mechanism, the feeding bin (23) is provided with a plurality of first placement stations (27), the plurality of first placement stations (27) are arranged in a matrix, the sampling bin (24) is provided with a plurality of second placement stations (28), 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, the code scanning device (25) is used for scanning the identification code on the differential mechanism, and the discharging bin (26) is used for storing the differential mechanism after the post-processing is completed, the assembled differential mechanism sequentially passes through the feeding 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 discharging bin (26) through the first robot (17) and the second robot (18).

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