Hub post-processing system

Abstract

The invention discloses a hub post-processing system which comprises a detecting mechanism, a repairing mechanism, a defective product collecting mechanism, a finished product collecting mechanism and an assembling mechanism, a first conveying part is arranged between the detecting mechanism and the repairing mechanism, and a second conveying part is arranged between the detecting mechanism and the defective product collecting mechanism. A third conveying part is arranged between the detecting mechanism and the finished product collecting mechanism, a fourth conveying part is arranged between the detecting mechanism and the assembling mechanism, the detecting mechanism is used for conducting initial detection on the surfaces of the hubs, the hubs unqualified in initial detection are conveyed to the repairing mechanism to be subjected to surface repairing, and the repaired hubs are conveyed back to the detecting mechanism to be subjected to redetection. The wheel hubs which are qualified through initial inspection or qualified through reinspection are conveyed to the assembling mechanism, the assembling mechanism is used for assembling accessories on the wheel hubs, the assembled wheel hubs are sent back to the detection mechanism to be subjected to final inspection, the wheel hubs which are qualified through final inspection are conveyed to the finished product collecting mechanism, and the wheel hubs which are unqualified through reinspection or unqualified through final inspection are conveyed to the defective product collecting mechanism. The device is simple in structure and high in automation degree.

Description

Technical Field

[0001] This invention belongs to the field of wheel hub production lines, and particularly relates to a wheel hub after-treatment system. Background Technology

[0002] As an important component of the automotive chassis, wheel hubs have very high requirements for appearance quality. Especially before leaving the factory, wheel hubs must not have any surface defects (such as dents, bumps, scratches, etc.). Therefore, wheel hubs undergo surface defect inspection before leaving the factory. Wheel hubs with surface defects need to be re-grinded and polished. At the same time, wheel hubs also need to have accessories installed before leaving the factory (such as valve stems, bolt bushings, and shaft hole bushings, etc.). However, currently, much of these tasks are done manually, and there is a lack of fully automated production lines. Currently, there are solutions for automated detection of defects on the surface of wheel hubs based on vision. For example, document CN115830033B, "Method for Detecting Surface Defects of Automobile Wheel Hubs Based on Machine Vision," discloses a vision detection solution. However, it only discloses how to identify surface defects of wheel hubs at the algorithm level and has not formed a production line. Document CN105836454B, "Wheel Hub Inspection Processing and Transportation Line," discloses a wheel hub inspection processing and transportation line. However, it only discloses a transportation line that can flip the wheel hubs to facilitate inspection, and the structure of the entire conveyor line is relatively complex. Summary of the Invention

[0003] In order to solve the above-mentioned technical problems, the purpose of this invention is to provide a wheel hub after-treatment system that is highly automated, can detect and repair defects on the surface of the wheel hub, can assemble accessories on the wheel hub, and can divert traffic according to whether the wheel hub is qualified.

[0004] To achieve the above objectives, the technical solution of the present invention is as follows: A wheel hub after-treatment system includes an inspection mechanism, a repair mechanism, a defective product collection mechanism, a finished product collection mechanism, and an assembly mechanism. A first conveyor is provided between the inspection mechanism and the repair mechanism; a second conveyor is provided between the inspection mechanism and the defective product collection mechanism; a third conveyor is provided between the inspection mechanism and the finished product collection mechanism; and a fourth conveyor is provided between the inspection mechanism and the assembly mechanism. The inspection mechanism performs a preliminary inspection on the wheel hub surface. Wheel hubs that fail the preliminary inspection are conveyed by the first conveyor to the repair mechanism for surface repair. After repair, the wheel hubs are returned by the first conveyor to the inspection mechanism for re-inspection. Wheel hubs that pass the preliminary inspection or re-inspection are conveyed by the fourth conveyor to the assembly mechanism. The assembly mechanism assembles accessories onto the wheel hub. After assembly, the wheel hubs are returned by the fourth conveyor to the inspection mechanism for final inspection. Wheel hubs that pass the final inspection are conveyed by the third conveyor to the finished product collection mechanism. Wheel hubs that fail the re-inspection or final inspection are conveyed by the second conveyor to the defective product collection mechanism.

[0005] The beneficial effects of the above technical solution are as follows: the wheel hub after-treatment system can perform a preliminary inspection of the wheel hub surface. Wheel hubs that fail the preliminary inspection are repaired by the repair mechanism. The repaired wheel hubs are then re-inspected. Wheel hubs that pass the preliminary inspection and the re-inspection are directly assembled with accessories by the assembly mechanism. After the accessories are assembled, the wheel hubs undergo a final inspection. Wheel hubs that pass the final inspection are sent to the finished product collection mechanism for collection, while wheel hubs that fail the re-inspection and the final inspection are sent to the defective product collection mechanism for collection. The wheel hub after-treatment system has a high degree of automation and can basically achieve unmanned operation.

[0006] The detection mechanism described in the above technical solution includes a detection platform, a supplementary lighting component, a defect identification component, and a first pick-and-place component. The supplementary lighting component includes a supplementary light source and a first robotic arm. The supplementary light source is located at the drive end of the first robotic arm. The defect identification component includes a CCD camera and a second robotic arm. The CCD camera is located at the drive end of the second robotic arm. The first robotic arm, the second robotic arm, and the first pick-and-place component are located next to the detection platform. The first pick-and-place component is used to pick up or place the wheel hub or flip the wheel hub. The second robotic arm is used to drive the CCD camera to detect the surface of the wheel hub. The first robotic arm is used to drive the supplementary light source to move in coordination with the CCD camera. The first pick-and-place component can pick up or place the wheel hub on the detection platform, and can also remove it from the detection platform. It can also flip the wheel hub on the detection platform.

[0007] The beneficial effects of the above technical solution are as follows: the first pick-and-place component can pick up and place the wheel hub to the center of the inspection table, the first robotic arm drives the supplementary light source to illuminate various parts of the wheel hub surface, and the second robotic arm drives the CCD camera to inspect the parts of the wheel hub surface illuminated by the supplementary light source. For defective wheel hubs, they need to go through three processes: initial inspection, repair, and re-inspection, or four processes: initial inspection, repair, re-inspection, and final inspection. As long as the wheel hub passes the final inspection, it can be considered as qualified.

[0008] The repair mechanism described in the above technical solution includes a repair table, a second pick-and-place component, and a repair assembly. The second pick-and-place component and the repair assembly are disposed next to the repair table. The second pick-and-place component is used to pick up or place the wheel hub or to flip the wheel hub. The repair assembly includes a rotary table and a plurality of third robotic arms disposed on the rotary table. At least one of the third robotic arms has a grinding head mounted on its drive end, and the remaining third robotic arms have polishing heads mounted on their drive ends.

[0009] The beneficial effect of the above technical solution is that the wheel hub that needs to be repaired can be placed on the repair table, and then the rotary table can be rotated to switch the third robotic arm to drive the corresponding grinding head or polishing head to perform repair work on the surface of the wheel hub.

[0010] The assembly mechanism described in the above technical solution includes an assembly table, a third pick-and-place component, and an assembly assembly. The assembly assembly and the third pick-and-place component are both located next to the assembly table. The third pick-and-place component is used to pick up or place the wheel hub or flip the wheel hub. The assembly assembly is used to assemble accessories on the wheel hub.

[0011] The beneficial effect of the above technical solution is that the wheel hub that has passed the initial inspection or re-inspection can be placed on the assembly table, and then the assembly component can take the accessories and install them on the wheel hub. Then the wheel hub with the accessories assembled can be sent back to the testing agency for final inspection by the fourth conveyor.

[0012] The defective product collection mechanism described in the above technical solution includes a transfer trailer and a fourth pick-and-place component. The fourth pick-and-place component is located next to the output end of the second conveyor and is used to transfer the wheel hub sent by the second conveyor to the transfer trailer.

[0013] The beneficial effects of the above technical solution are as follows: Since wheel hubs that fail the re-inspection and final inspection are usually unable to be repaired or processed by the wheel hub after-treatment system, they can be collected and manually screened to determine whether to continue manual repair or to be scrapped directly.

[0014] The finished product collection mechanism described in the above technical solution includes a fifth pick-and-place component, a tray, a sixth pick-and-place component, and a spacer storage frame. The fifth pick-and-place component, the tray, the sixth pick-and-place component, and the spacer storage frame are arranged next to the output end of the third conveyor. The fifth pick-and-place component is used to pick up the wheel hubs sent out by the third conveyor one by one and stack them on the tray. The spacer storage frame is used to stack multiple spacers. The sixth pick-and-place component is used to take out the spacers one by one from the spacer storage frame and place them on the tray. On each layer of wheel hubs on the tray, the sixth pick-and-place component places one spacer.

[0015] The beneficial effects of the above technical solution are as follows: the wheel hubs that have passed the final inspection can be directly placed on the pallet for stacking. In order to avoid scratches when stacking wheel hubs, a spacer is placed between two adjacent layers of wheel hubs to play a protective role.

[0016] The above technical solution also includes an AGV forklift, a packing machine, and an automatic labeling machine. The AGV forklift is used to transfer pallets with stacked wheel hubs to the warehouse, and the packing machine and the automatic labeling machine are sequentially arranged on the movement track of the AGV forklift. The packing machine is used to pack the wheel hubs on the pallet to form wheel hub packages, and the automatic labeling machine affixes labels to the side of the wheel hub packages.

[0017] The beneficial effect of the above technical solution is that it enables the stacked wheel hubs to complete the entire process of packaging, labeling and warehousing under the transfer of AGV forklifts, thereby realizing unmanned operation of the whole process.

[0018] In the above technical solution, both the first conveying member and the fourth conveying member have sub-conveying members with two conveying directions.

[0019] The beneficial effect of the above technical solution is that it enables the first and fourth conveying components to achieve bidirectional conveying of the wheel hub, and the bidirectional conveying does not interfere with each other.

[0020] In the above technical solution, multiple temporary storage members are arranged at intervals above the conveying channel of each sub-conveying component along its conveying direction. When the conveying channel of the sub-conveying component is congested with a wheel hub, the temporary storage member is used to lift the wheel hub being conveyed on the corresponding sub-conveying component for buffering, and the height to which the temporary storage member lifts the wheel hub is greater than the axial length of the wheel hub. When the conveying channel of the sub-conveying component is unobstructed, the temporary storage member is used to lower the lifted wheel hub onto the conveying channel of the corresponding sub-conveying component.

[0021] The beneficial effect of the above technical solution is that when there is a blockage or queue on the hub of the sub-conveying component, the temporary storage component can lift part of the hub on the corresponding sub-conveying component to clear the blockage. After the sub-conveying component is clear, the temporary storage component can lower the hub onto the conveying channel of the sub-conveying component.

[0022] The temporary storage component described in the above technical solution includes a bracket, a telescopic drive component, and a clamp. The bracket is an n-shaped bracket, which is mounted on the sub-conveying component. The through direction of its inner groove is consistent with the conveying direction of the corresponding sub-conveying component. The telescopic drive component is installed in the middle of the upper end of the bracket, with its telescopic end facing downward and located in the groove of the bracket. The clamp's jaws face downward and are installed on the telescopic end of the telescopic drive component. The telescopic drive component extends or retracts to drive the clamp to move up and down above the corresponding sub-conveying component. The clamp is used to grip or release the wheel hub.

[0023] The beneficial effects of the above technical solution are as follows: When there is congestion on the sub-conveyor, the telescopic drive can drive the clamp to move downward and clamp the hub tightly. When the telescopic drive retracts, it can drive the clamp and the hub to move upward. At this time, the hub can be temporarily stored, and the channel on the corresponding sub-conveyor can be cleared. When the sub-conveyor is cleared, the telescopic drive can drive the clamp to move downward to place the hub on the conveying channel of the sub-conveyor. Then the clamp will release the hub, and the telescopic drive can retract to drive the clamp to move upward and reset. Attached Figure Description

[0024] Figure 1This is a schematic diagram of the hub aftertreatment system described in Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the hub aftertreatment system described in Embodiment 2 of the present invention; Figure 3 This is a schematic diagram illustrating the arrangement of the sub-conveying component and the temporary storage component as described in Embodiment 3 of the present invention; Figure 4 This is a front view of the sub-conveying component and the temporary storage component described in Embodiment 3 of the present invention; Figure 5 This is a bottom view of the clamp described in Embodiment 3 of the present invention.

[0025] In the diagram: 1. Inspection mechanism; 11. Inspection table; 12. Lighting component; 121. Lighting source; 122. First robotic arm; 13. Defect identification component; 131. CCD camera; 132. Second robotic arm; 14. First pick-and-place component; 2. Repair mechanism; 21. Repair table; 22. Second pick-and-place component; 23. Repair assembly; 231. Rotary table; 232. Third robotic arm; 233. Polishing head; 234. Grinding head; 3. Defect collection mechanism; 31. Transfer trolley; 32. Fourth pick-and-place component; 4. Finished product collection mechanism; 41. Fifth pick-and-place component; 42. Tray 43. Tray; 44. Sixth pick-up and drop-off component; 45. Spacer storage frame; 46. Spacer; 57. Assembly mechanism; 58. Assembly table; 59. Third pick-up and drop-off component; 50. Assembly assembly; 61. First conveyor; 62. Second conveyor; 63. Third conveyor; 64. Fourth conveyor; 65. Fifth conveyor; 66. Sub-conveyor; 67. Temporary storage component; 68. Bracket; 69. Telescopic drive component; 60. Clamp; 61. Top plate; 62. Drive component; 62. Clamping block; 7. Wheel hub; 8. AGV forklift; 9. Packaging machine; 10. Automatic labeling machine. Detailed Implementation

[0026] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0028] It is understood that spatial relation terms such as “below,” “under,” “below,” “below,” “above,” “above,” etc., can be used here to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, the element or feature described as “below,” “below,” or “below” will be oriented “above” the other element or feature. Therefore, the exemplary terms “below” and “under” can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein will be interpreted accordingly.

[0029] It should be noted that when one element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through an intermediary element. In the following embodiments, "connection" should be understood as "electrical connection," "communication connection," etc., if the connected circuits, modules, units, etc., have the transmission of electrical signals or data between them.

[0030] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0031] Example 1 like Figure 1As shown, this embodiment provides a wheel hub after-treatment system, including an inspection mechanism 1, a repair mechanism 2, a defective product collection mechanism 3, a finished product collection mechanism 4, and an assembly mechanism 5. A first conveyor 6a is provided between the inspection mechanism 1 and the repair mechanism 2; a second conveyor 6b is provided between the inspection mechanism 1 and the defective product collection mechanism 3; a third conveyor 6c is provided between the inspection mechanism 1 and the finished product collection mechanism 4; and a fourth conveyor 6d is provided between the inspection mechanism 1 and the assembly mechanism 5. The inspection mechanism 1 is used to perform preliminary inspection on the surface of the wheel hub 7. Wheel hubs 7 that fail the preliminary inspection are conveyed by the first conveyor 6a to… Repair mechanism 2 performs surface repair. After repair, the wheel hub 7 is returned to the inspection mechanism 1 by the first conveyor 6a for re-inspection. Wheel hubs 7 that pass the initial inspection or re-inspection are then conveyed to the assembly mechanism 5 by the fourth conveyor 6d. The assembly mechanism 5 is used to assemble accessories on the wheel hub 7. After assembly, the wheel hub 7 is returned to the inspection mechanism 1 by the fourth conveyor 6d for final inspection. Wheel hubs 7 that pass the final inspection are then conveyed to the finished product collection mechanism 4 by the third conveyor 6c. Wheel hubs 7 that fail the re-inspection or final inspection are then conveyed to the defective product collection mechanism 3 by the second conveyor 6b. The wheel hub after-treatment system can perform a preliminary inspection on the surface of the wheel hub 7. Wheel hubs 7 that fail the preliminary inspection are repaired by the repair mechanism 2. The repaired wheel hubs 7 are then re-inspected. Wheel hubs 7 that pass the preliminary and re-inspections are directly assembled with accessories by the assembly mechanism 5. After the accessories are assembled, the wheel hubs 7 undergo a final inspection. Wheel hubs 7 that pass the final inspection are sent to the finished product collection mechanism 4 for collection, while wheel hubs 7 that fail the re-inspection and the final inspection are sent to the defective product collection mechanism 3 for collection. The wheel hub after-treatment system has a high degree of automation and can basically achieve unmanned operation.

[0032] In this embodiment, the surface inspection of the wheel hub 7 mainly detects whether there are defects such as bumps, dents or scratches on the surface of the wheel hub 7. Since the surface of the wheel hub 7 is usually gold-plated, if there are defects on the surface of the gold-plated wheel hub 7, it will affect the aesthetics of the wheel hub 7, which will not meet the factory standards.

[0033] Before the wheel hub 7 is installed on the vehicle, valve stems, bolt bushings, and shaft hole bushings need to be installed on it. In order to simplify the subsequent assembly process of the vehicle manufacturer, in this embodiment, valve stems, bolt bushings, and shaft hole bushings are directly installed on the wheel hub 7 according to the requirements of the vehicle manufacturer before it leaves the factory. Therefore, in this embodiment, the wheel hub 7 that has passed the initial inspection and the re-inspection is sent to the assembly mechanism 5. The assembly mechanism 5 assembles various accessories on the wheel hub 7. Since new defects may appear on the wheel hub 7 during the process of assembling accessories, and there may also be defects in the assembly of accessories, the wheel hub 7 needs to be sent back to the testing mechanism for final inspection after the accessories are assembled. Only the wheel hub 7 that passes the final inspection is considered a qualified finished product and meets the factory standards.

[0034] Wheel hubs 7 that fail the re-inspection and those that fail the final inspection are considered defective products. Defective products need to be manually screened to determine if they need to be repaired. If they can be manually repaired after screening, they will continue to be repaired manually until they meet the factory standards. Those that cannot be repaired after screening can only be treated as scrap.

[0035] The wheel hub after-treatment system provided in this embodiment greatly reduces manual labor and lowers the intensity of manual work. Specifically, the wheel hub after-treatment system can perform all the subsequent processing of the produced wheel hubs without human intervention, and only the re-inspection of defective products requires manual intervention.

[0036] See details Figure 1 As shown, in the above technical solution, both the first conveying member 6a and the fourth conveying member 6d have sub-conveyors 61 with two conveying directions. This enables the first conveying member 6a and the fourth conveying member 6d to achieve bidirectional conveying of the hub 7 without interfering with each other during bidirectional conveying.

[0037] For details, please see Figure 1 As shown, in this embodiment, the detection mechanism 1 includes a detection table 11, a supplementary lighting component 12, a defect identification component 13, and a first pick-and-place component 14. The supplementary lighting component 12 includes a supplementary light source 121 and a first robotic arm 122. The supplementary light source 121 is disposed at the drive end of the first robotic arm 122. The defect identification component 13 includes a CCD camera 131 and a second robotic arm 132. The CCD camera 131 is disposed at the drive end of the second robotic arm 132. The first robotic arm 122, the second robotic arm 132, and the first pick-and-place component 14 are connected together. The first pick-and-place component 14 is disposed next to the inspection table 11. The first pick-and-place component 14 is used to pick up and place the wheel hub 7 or to flip the wheel hub 7. The second robotic arm 132 is used to drive the CCD camera 131 to inspect the surface of the wheel hub 7. The first robotic arm 122 is used to drive the supplementary light source 121 to move in coordination with the CCD camera 131. The first pick-and-place component 14 can pick up and place the wheel hub 7 onto the inspection table 11, or remove it from the inspection table 11. It can also flip the wheel hub 7 on the inspection table 11. In this way, the first pick-and-place component 14 picks up and places the wheel hub 7 to the middle of the inspection table 11. The first robotic arm 122 drives the supplementary light source 121 to illuminate various parts of the surface of the wheel hub 7, while the second robotic arm 132 drives the CCD camera 131 to inspect the areas of the wheel hub 7 illuminated by the supplementary light source 121. For defective wheel hubs, they need to go through three processes: initial inspection, repair, and re-inspection, or four processes: initial inspection, repair, re-inspection, and final inspection. As long as the wheel hub 7 passes the final inspection, it can be considered as qualified.

[0038] In this embodiment, multiple defect identification elements 13 may be provided. Preferably, two defect identification elements 13 may be provided, and the two defect identification elements 13 are arranged at intervals around the detection table 11.

[0039] Because the wheel hub 7 has an irregular shape and components such as spokes and rims, in order to perform detailed inspections of various parts of the wheel hub 7, the CCD camera 131 and the supplementary light source 121 need to be able to move flexibly around the wheel hub 7 to perform detailed inspections of different parts. The first robotic arm 122 drives the supplementary light source 121 to move, and the second robotic arm 132 drives the CCD camera 131 to move. At this time, the supplementary light source 121 and the CCD camera 131 need to work together. The supplementary light source 121 and the CCD camera 131 can be directed towards the same point of the wheel hub 7 during inspection. Since the CCD camera 131 needs to be obliquely illuminated by the supplementary light source 121 when identifying defects on the surface of the wheel hub 7, if there are defects, obvious dark spots, dark lines, bright spots, or bright lines will be formed at the defects. These abnormalities can all be regarded as defects.

[0040] Since the wheel hub 7 is placed flat in the middle of the testing table 11 during testing, and in order to conduct a more thorough test on the surface of the wheel hub 7, the wheel hub 7 also needs to be flipped over during testing, and the other side is tested after flipping over (the flipping is performed by the first pick-and-place member 14).

[0041] In this embodiment, after the detection mechanism 1 identifies each defect point on the wheel hub 7, it will also locate the position of the defect (three-dimensional positioning). The positioning points can be valve holes and shaft holes as calibration points. The subsequent positioning data will be transmitted to the repair mechanism 2. At this time, the repair mechanism 2 will generate a corresponding repair plan according to the position and shape of the defect.

[0042] The method for visually identifying defects on the wheel hub 7 in this embodiment can refer to the method disclosed in document CN115830033B, "Method for Detecting Surface Defects of Automobile Wheel Hubs Based on Machine Vision".

[0043] It may also include a fifth conveyor 6e, the output end of which is close to the testing table 11, and the fifth conveyor 6e directly conveys the wheel hub 7 that needs to be post-processed to the testing mechanism 1.

[0044] In this embodiment, the first conveying component 6a, the second conveying component 6b, the third conveying component 6c, the fourth conveying component 6d, and the fifth conveying component 6e can all be roller conveyors (the sub-conveying component 61 can also be a roller conveyor).

[0045] In this embodiment, when the wheel hub 7 is delivered by the fifth conveyor 6e, the first pick-and-place member 14 picks up the wheel hub 7 and places it flat in the middle of the inspection table 11. If the wheel hub 7 needs to be delivered to the first conveyor 6a, the first pick-and-place member 14 clamps the wheel hub 7 and places it in the feed of the first conveyor 6a (the wheel hub 7 is delivered to the inspection table 11 or taken away from the inspection table 11 by the first pick-and-place member 14, which will not be described in detail here).

[0046] For details, please see Figure 1 As shown, the repair mechanism 2 in this embodiment includes a repair table 21, a second pick-and-place member 22, and a repair assembly 23. The second pick-and-place member 22 and the repair assembly 23 are disposed beside the repair table 21. The second pick-and-place member 22 is used to pick up or place the wheel hub 7 or to flip the wheel hub 7. The repair assembly 23 includes a rotary table 231 and multiple third robotic arms 232 disposed on the rotary table 231. At least one of the third robotic arms 232 has a grinding head 234 mounted on its drive end, and the remaining third robotic arms 232 have polishing heads 233 mounted on their drive ends. In this way, the wheel hub 7 to be repaired can be placed on the repair table 21, and then the rotary table 231 can be rotated to switch the third robotic arms 232 to drive the corresponding grinding head 234 or polishing head 233 to perform repair work on the surface of the wheel hub 7.

[0047] See details Figure 1 As shown, in this embodiment, the rotary table 231 is an electric rotary table. Preferably, four third robotic arms 232 can be provided, and two grinding heads 234 are provided (one is a disc-shaped grinding head and the other is a rod-shaped grinding head). Two polishing heads 233 are also provided (one is a disc-shaped polishing head and the other is a rod-shaped polishing head). This allows for flexible selection of grinding heads 234 and polishing heads 233 to repair defects in different locations and shapes (repairing usually involves grinding first and then polishing).

[0048] In this embodiment, when the wheel hub 7 is near the end of the repair mechanism 2 of the first conveyor 6a, the second pick-and-place member 22 transfers the wheel hub 7 to the middle of the repair table 21. When the wheel hub 7 needs to be returned to the inspection mechanism, the second pick-and-place member 22 also takes the wheel hub 7 off the repair table 21 and places it on the first conveyor 6a.

[0049] For details, please see Figure 1As shown, the assembly mechanism 5 in this embodiment includes an assembly table 51, a third pick-and-place component 52, and an assembly assembly 53. Both the assembly assembly 53 and the third pick-and-place component 52 are located beside the assembly table 51. The third pick-and-place component 52 is used to pick up or place the wheel hub 7 or to flip the wheel hub 7. The assembly assembly 53 is used to assemble accessories onto the wheel hub 7. In this way, a wheel hub 7 that has passed initial inspection or re-inspection can be placed on the assembly table 51. Then, the assembly assembly 53 picks up the accessories and installs them onto the wheel hub 7. Finally, the wheel hub 7 with the assembled accessories is returned to the inspection mechanism by the fourth conveyor 6d for final inspection.

[0050] In this embodiment, the third pick-and-place member 52 is similar to the second pick-and-place member 22. The transfer of the hub 7 between the fourth conveyor member 6d and the assembly table 51 is carried out by the third pick-and-place member 52.

[0051] The specific structure of the assembly component 53 described in this embodiment can be customized according to the shape of the accessory and the installation method, so its structure will not be described in detail here.

[0052] For details, please see Figure 1 As shown, the defective product collection mechanism 3 in this embodiment includes a transfer trailer 31 and a fourth pick-and-place component 32. The fourth pick-and-place component 32 is located next to the output end of the second conveyor 6b and is used to transfer the wheel hubs 7 delivered by the second conveyor 6b onto the transfer trailer 31. Since wheel hubs 7 that fail the re-inspection and final inspection are usually beyond repair or processing by the wheel hub after-processing system, they can be collected and manually screened to determine whether to continue manual repair or directly scrap them.

[0053] In this embodiment, the transfer trailer 31 can be an AGV chassis, and the transfer trailer 31 has numerous wheel hub placement areas. When the defective wheel hubs are transported to one end of the transfer trailer 31 via the second conveyor 6b, the fourth pick-and-place component 32 takes the wheel hubs 7 off the second conveyor 6b and places them on the transfer trailer 31. After the transfer trailer 31 is full, it is automatically transferred to the manual repair workshop, and the empty transfer trailer 31 is put back in place. Preferably, three transfer trailers 31 can be set up, and the three transfer trailers 31 can achieve cyclic turnover.

[0054] Specifically, in this embodiment, the finished product collection mechanism 4 includes a fifth pick-and-place component 41, a tray 42, a sixth pick-and-place component 43, and a spacer storage frame 44. The fifth pick-and-place component 41, tray 42, sixth pick-and-place component 43, and spacer storage frame 44 are located next to the output end of the third conveyor 6c. The fifth pick-and-place component 41 is used to pick up the wheel hubs 7 delivered by the third conveyor 6c one by one and stack them on the tray 42. The spacer storage frame 44 is used to stack multiple spacers 441. The sixth pick-and-place component 43 is used to remove the spacers 441 one by one from the spacer storage frame 44 and place them on the tray 42. One spacer 441 is placed on each layer of wheel hubs 7 on the tray 42 by the sixth pick-and-place component 43. This allows wheel hubs 7 that have passed final inspection to be directly placed on the tray 42 for stacking. To prevent scratches during stacking, a spacer 441 is placed between adjacent layers of wheel hubs 7 for protection.

[0055] See details Figure 1 As shown, in this embodiment, the wheel hub 7 at the output end of the third conveyor 6c is also transferred to the tray 42 by the fifth pick-and-place component 41. Multiple wheel hubs 7 are placed on each layer of the tray 42. After each layer of wheel hubs 7 is placed, a spacer 441 is taken out from the spacer storage frame 44 by the sixth pick-and-place component 43 and laid on the wheel hub 7. Then, new wheel hubs 7 are stacked.

[0056] In this embodiment, the structures of the first pick-and-place member 14, the second pick-and-place member 22, the third pick-and-place member 52, the fourth pick-and-place member 32, and the fifth pick-and-place member 41 can be similar. They are all composed of a robotic arm and a robotic claw. The robotic claw is set at the drive end of the robotic arm, and the robotic claw needs to be able to grip the wheel hub 7. A flexible pad is set on one side of the gripping arm corresponding to the gripping opening to avoid damaging the surface of the wheel hub 7.

[0057] In this embodiment, the testing table 11, the repair table 21, and the assembly table 51 can all be similar to a square table. Preferably, a flexible mat should be laid on the tabletop to avoid scratching the wheel hub 7.

[0058] This embodiment may also include a control terminal (which may be a computer). The supplementary lighting component 12, the defect identification component 13, the first pick-and-place component 14, the second pick-and-place component 22, the repair component 23, the fourth pick-and-place component 32, the fifth pick-and-place component 41, the sixth pick-and-place component 43, the third pick-and-place component 52, and the assembly component 53 may all be electrically connected to the control terminal.

[0059] Example 2 Same as Example 1, except that, as Figure 2As shown, the wheel hub post-processing system provided in this embodiment also includes an AGV forklift 8, a packing machine 9, and an automatic labeling machine 10. The AGV forklift 8 is used to transfer pallets 42 with stacked wheel hubs 7 to the warehouse. The packing machine 9 and the automatic labeling machine 10 are sequentially arranged on the moving track of the AGV forklift 8. The packing machine 9 is used to pack the wheel hubs 7 on the pallet 42 to form wheel hub packages. The automatic labeling machine 10 affixes labels to the sides of the wheel hub packages. This allows the stacked wheel hubs 7 to complete the entire process of packing, labeling, and warehousing under the transfer of the AGV forklift, thereby achieving fully unmanned operation.

[0060] The AGV forklift 8, packaging machine 9, and automatic labeling machine 10 mentioned in this embodiment are all existing technologies and will not be described in detail here. In this embodiment, the label affixed to the wheel hub package can be printed with a QR code, as well as information such as the OEM manufacturer, wheel hub specifications, and batch number.

[0061] Example 3 Same as Embodiment 1 or Embodiment 2, except that, as Figures 3-5 As shown, in this embodiment, multiple temporary storage members 62 are spaced apart above the conveying channel of each sub-conveying member 61 along its conveying direction. When the conveying channel of a sub-conveying member 61 becomes congested with hubs 7, the temporary storage members 62 are used to lift the hubs 7 conveyed on the corresponding sub-conveying member 61 for buffering. The height to which the temporary storage members 62 lift the hubs 7 is greater than the axial length of the hubs 7. When the conveying channel of the sub-conveying member 61 is clear, the temporary storage members 62 are used to lower the lifted hubs 7 back onto the conveying channel of the corresponding sub-conveying member 61. This allows the temporary storage members 62 to lift a portion of the hubs 7 on the corresponding sub-conveying member 61 to clear the blockage when there is a blockage or queue of hubs 7 on the sub-conveying member 61. Once the sub-conveying member 61 is clear, the temporary storage members 62 can then lower the hubs 7 back onto the conveying channel of the sub-conveying member 61.

[0062] In this embodiment, the temporary storage component 62 can be set at the output end of the corresponding sub-conveying component 61. Preferably, two or three temporary storage components 62 can be set at intervals at the output end of the sub-conveying component 61.

[0063] Specifically, such as Figure 4As shown, in this embodiment, the temporary storage component 62 includes a bracket 621, a telescopic drive component 622, and a clamp 623. The bracket 621 is an n-shaped frame, which is mounted on the sub-conveying component 61. The through direction of its inner groove is consistent with the conveying direction of the corresponding sub-conveying component 61. The telescopic drive component 622 is installed in the middle of the upper end of the bracket 621, with the telescopic end of the telescopic drive component 622 facing downward and located in the groove of the bracket 621. The clamp 623 has its clamping jaw facing downward and is installed on the telescopic end of the telescopic drive component 622. The telescopic drive component 622 extends or retracts to drive the clamp 623 to move up and down above the corresponding sub-conveying component 61. The clamp 623 is used to clamp or release the wheel hub 7. In this way, when the sub-conveying component 61 is congested, the telescopic drive component 622 drives the clamp 623 to move downward and clamp the hub 7 tightly. When the telescopic drive component 622 retracts, it drives the clamp 623 and the hub 7 to move upward. At this time, the hub 7 can be temporarily stored, and the channel on the corresponding sub-conveying component 61 is cleared. When the sub-conveying component 61 is cleared, the telescopic drive component 622 drives the clamp to move downward to place the hub 7 on the conveying channel of the sub-conveying component 61. Then the clamp 623 releases the hub 7, and the telescopic drive component 622 retracts to drive the clamp 623 to move upward and reset.

[0064] In this embodiment, the telescopic drive component 622 can be a telescopic cylinder, a hydraulic cylinder, or a telescopic electric cylinder, etc.

[0065] like Figure 4 and Figure 5 As shown, in this embodiment, the clamp 623 includes a top plate 6231, a driving member 6232, and two arc-shaped clamping blocks 6233. The top plate 6231 is horizontally arranged, and the telescopic end of the telescopic driving member 622 is vertically connected to the middle of the upper end of the top plate 6231. The two clamping blocks 6233 can be slidably installed at intervals along the width direction or conveying direction of the corresponding sub-conveying member 61 at the lower end of the top plate 6231. The driving member 6232 is installed at the lower end of the top plate 6231 and has two driving ends, which are respectively connected to the two clamping blocks 6233. The driving member 6232 drives the two clamping blocks 6233 to slide closer to each other (at which time the wheel hub 7 can be clamped) or further apart (at which time the wheel hub 7 can be released).

[0066] In this embodiment, the driving component 6232 can be a double piston rod cylinder (which has two oppositely distributed telescopic ends), which is an existing product and will not be described in detail here (or two independent telescopic cylinders can be used to drive the two clamping blocks 6233 to move respectively).

[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A wheel hub aftertreatment system characterized by, The application relates to a wheel hub surface detection and repair device, which comprises a detection mechanism (1), a repair mechanism (2), a substandard product collecting mechanism (3), a finished product collecting mechanism (4) and an assembling mechanism (5), wherein the detection mechanism (1) is provided with a first conveying part (6a) between the detection mechanism (1) and the repair mechanism (2), a second conveying part (6b) between the detection mechanism (1) and the substandard product collecting mechanism (3), a third conveying part (6c) between the detection mechanism (1) and the finished product collecting mechanism (4), and a fourth conveying part (6d) between the detection mechanism (1) and the assembling mechanism (5); the detection mechanism (1) is used for primary detection of the surface of a wheel hub (7), the wheel hub (7) that does not meet the primary detection standard is conveyed to the repair mechanism (2) by the first conveying part (6a) for surface repair, the repaired wheel hub (7) is returned to the detection mechanism (1) by the first conveying part (6a) for re-detection, the wheel hub (7) that meets the primary detection standard or the re-detection standard is conveyed to the assembling mechanism (5) by the fourth conveying part (6d), the assembling mechanism (5) is used for assembling accessories on the wheel hub (7), the assembled wheel hub (7) is returned to the detection mechanism (1) by the fourth conveying part (6d) for final detection, and the wheel hub (7) that meets the final detection standard is conveyed to the finished product collecting mechanism (4) by the third conveying part (6c).

2. The wheel hub aftertreatment system of claim 1, wherein, The detection mechanism (1) comprises a detection table (11), a light supplement part (12), a flaw identification part (13) and a first taking and placing part (14), the light supplement part (12) comprises a light supplement light source (121) and a first mechanical arm (122), the light supplement light source (121) is arranged at the driving end of the first mechanical arm (122), the flaw identification part (13) comprises a CCD camera (131) and a second mechanical arm (132), the CCD camera (131) is arranged at the driving end of the second mechanical arm (132), the first mechanical arm (122), the second mechanical arm (132) and the first taking and placing part (14) are arranged beside the detection table (11), the first taking and placing part (14) is used for taking and placing the wheel hub (7) or turning over the wheel hub (7); the second mechanical arm (132) is used for driving the CCD camera (131) to detect the surface of the wheel hub (7), and the first mechanical arm (122) is used for driving the light supplement light source (121) to move in cooperation with the CCD camera (131).

3. The wheel hub aftertreatment system of claim 1, wherein, The repairing mechanism (2) comprises a repairing table (21), a second taking-and-placing member (22) and a repairing assembly (23), the second taking-and-placing member (22) and the repairing assembly (23) are arranged beside the repairing table (21), the second taking-and-placing member (22) is used to take and place the hub (7) or turn over the hub (7), the repairing assembly (23) comprises a rotating table (231) and a plurality of third mechanical arms (232) arranged on the rotating table (231), a polishing head (234) is arranged on the driving end of at least one third mechanical arm (232), and a polishing head (233) is arranged on the driving end of the remaining third mechanical arms (232).

4. The wheel hub aftertreatment system of claim 1, wherein, The assembling mechanism (5) comprises an assembling table (51), a third taking-and-placing member (52) and an assembling assembly (53), the assembling assembly (53) and the third taking-and-placing member (52) are arranged beside the assembling table (51), the third taking-and-placing member (52) is used to take and place the hub (7) or turn over the hub (7), and the assembling assembly (53) is used to assemble accessories on the hub (7).

5. The wheel hub aftertreatment system of claim 1, wherein, The substandard product collecting mechanism (3) comprises a transfer trailer (31) and a fourth taking-and-placing member (32), the fourth taking-and-placing member (32) is arranged beside the output end of the second conveying member (6b), and the fourth taking-and-placing member (32) is used to transfer the hub (7) conveyed by the second conveying member (6b) to the transfer trailer (31).

6. The wheel hub aftertreatment system of claim 1, wherein, The finished product collecting mechanism (4) comprises a fifth taking-and-placing member (41), a tray (42), a sixth taking-and-placing member (43) and a spacer storage frame (44), the fifth taking-and-placing member (41), the tray (42), the sixth taking-and-placing member (43) and the spacer storage frame (44) are arranged beside the output end of the third conveying member (6c), the fifth taking-and-placing member (41) is used to take away the hub (7) conveyed by the third conveying member (6c) one by one and stack the hub (7) on the tray (42), the spacer storage frame (44) is used to stack a plurality of spacers (441), the sixth taking-and-placing member (43) is used to take out the spacers (441) from the spacer storage frame (44) one by one and place the spacers (441) on the tray (42), and one spacer (441) is placed on the hub (7) on each layer of the tray (42) by the sixth taking-and-placing member (43).

7. The wheel hub aftertreatment system of claim 6, wherein, Further comprising an AGV forklift (8), a packing machine (9) and an automatic labeling machine (10), the AGV forklift (8) is used to transfer the tray (42) stacked with the hub (7) to a warehouse, the packing machine (9) and the automatic labeling machine (10) are arranged in sequence on the moving track of the AGV forklift (8), the packing machine (9) is used to pack the hub (7) on the tray (42) to form a hub package, and the automatic labeling machine (10) is used to paste a label on the side of the hub package.

8. The wheel hub aftertreatment system of any one of claims 1-7, wherein, The first conveying member (6a) and the fourth conveying member (6d) each have two sub-conveying members (61) in two conveying directions.

9. The wheel hub aftertreatment system of claim 8, wherein, Each of the sub-conveying members (61) is provided with a plurality of temporary storage members (62) above the conveying channel thereof in the conveying direction, the temporary storage members (62) are used to lift the hub (7) conveyed on the sub-conveying member (61) to buffer when the conveying channel of the sub-conveying member (61) is congested, and the lifting height of the hub (7) by the temporary storage member (62) is greater than the axial length of the hub (7), the temporary storage member (62) is used to lower the hub (7) lifted thereby to the conveying channel of the sub-conveying member (61) when the conveying channel of the sub-conveying member (61) is unblocked.

10. The wheel hub aftertreatment system of claim 9, wherein, The temporary storage member (62) comprises a bracket (621), a telescopic driving member (622) and a clamping member (623), the bracket (621) is an n-shaped bracket, the bracket (621) is arranged on the sub-conveying member (61), the through direction of the inner groove of the bracket (621) is consistent with the conveying direction of the sub-conveying member (61), the telescopic driving member (622) is installed on the middle part of the upper end of the bracket (621), the telescopic end of the telescopic driving member (622) faces downward and is located in the groove of the bracket (621), the clamping opening of the clamping member (623) faces downward and is installed on the telescopic end of the telescopic driving member (622), the telescopic driving member (622) is extended or contracted to drive the clamping member (623) to move up and down above the sub-conveying member (61), and the clamping member (623) is used to clamp or release the hub (7).

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