A processing method applicable to automated assembly equipment capable of automatically assembling wheel hub bearings and brake discs.

Abstract

This invention discloses a processing method for an automated assembly equipment capable of automatically assembling wheel hub bearings and brake discs, comprising: S1: fixing the position of the material frame; S2: sequentially and cyclically picking up wheel hub bearings or blister trays and brake discs or blister trays from the fixed material frame in S1; S3: sequentially identifying the posture of the wheel hub bearings and brake discs being transported in S2; S4: aligning the axis of the wheel hub bearings and brake discs in S3 and matching their corresponding holes to form an assembled body; S5: sequentially conveying the assembled body to a disc runout detection machine and tightening the components to complete the assembly; S6: conveying the assembled body to the next process station and flipping it. This invention achieves automatic feeding, automatic assembly, automatic detection, automatic assembly, and automatic flipping of brake discs and wheel hub bearings by using corresponding equipment, enabling the brake discs and wheel hub bearings to achieve axis alignment and hole alignment during assembly, while avoiding surface collisions, thus improving assembly quality and efficiency.

Description

Technical Field

[0001] This invention relates to the field of automobile manufacturing technology, and more specifically to a processing method suitable for automated assembly equipment capable of automatically assembling wheel hub bearings and brake discs. Background Technology

[0002] Brake discs and wheel bearings are core components of an automotive chassis system. Wheel bearings bear the load and provide rotational support, and their performance directly affects driving safety and NVH (noise, vibration, and harshness) performance. Brake discs achieve deceleration and braking through friction, and the accuracy of their end face runout is crucial to braking stability. The traditional assembly process for brake discs and wheel bearings is as follows: workers use hand tools to press the wheel bearings into the wheel hub, and the brake discs are fixed to the wheel bearings with bolts tightened in a distributed manner; workers use dial indicators to measure the end face runout of the brake discs and adjust the flatness through repeated disassembly and assembly.

[0003] The inventors of this application have discovered that traditional assembly processes suffer from insufficient precision control in the assembly of brake discs and wheel hub bearings, low assembly cycle time, large fluctuations in the pass rate, and the risk of workplace injuries during the handling of heavy brake discs. Furthermore, improper burr removal may scratch operators. In short, traditional assembly processes result in low assembly quality and low assembly efficiency.

[0004] The brake disc and wheel hub bearing of this application are as follows: Figure 9 As shown, the brake disc 9 consists of a mounting plate 91 in the middle and annular brake pads 92 around the mounting plate 91. The mounting plate 91 has five through holes 93 evenly distributed circumferentially, and forms a tightening hole 94 for tightening and fixing. The centers of the five through holes 93 and the tightening hole 94 are located on the same arc. Figure 10 As shown, the hub bearing 10 consists of a central bearing mounting ring 101, a first-layer mounting protrusion 102, and a second-layer mounting plate 104. The bearing mounting ring 101 protrudes from the mounting protrusion 102 in a direction away from the mounting plate 104. The mounting protrusion 102 is parallel to the mounting plate 104. The mounting protrusion 102 has four mounting ears 103, and each mounting ear 103 has a through hole 93 for mounting and fixing. The mounting plate 104 has five locating pins 105 axially formed for cooperating with the five through holes 93 of the brake disc 9. The mounting plate 104 also has threaded holes 106 for fixing with the tightening holes 94 of the brake disc 9. Summary of the Invention

[0005] To address the problems of low assembly quality and low assembly efficiency in traditional assembly processes, this invention provides a processing method suitable for automated assembly equipment capable of automatically assembling wheel hub bearings and brake discs. The specific technical solution is as follows:

[0006] A processing method applicable to an automated assembly equipment capable of automatically assembling wheel hub bearings and brake discs, wherein the wheel hub bearings and brake discs are respectively placed in a material frame, and a blister pack is placed in the material frame to separate the wheel hub bearings or brake discs for multi-layer placement, including:

[0007] S1: The positioning components fix the positions of the material frames for placing the wheel hub bearings and brake discs respectively.

[0008] Furthermore, the positioning component is fixed to the ground. The positioning component includes a fixed bracket and a fixed wrench set on the fixed bracket. The fixed bracket is a U-shaped bracket. The two sides of the fixed bracket can restrict the material frame. The fixed wrench is fixedly connected to the bottom of the material frame.

[0009] S2: The gripping component sequentially and cyclically grips the wheel hub bearing or blister tray and brake disc or blister tray from the fixed material frame in S1.

[0010] Furthermore, the gripping component includes: a robot, which is fixed to the ground, and a suction cup bracket is provided at the moving end of the robot. The suction cup bracket has a V-shaped structure, and the two ends of the suction cup bracket are respectively provided with gripping suction cups for gripping brake discs or wheel hub bearings; a truss, which is fixed to the ground and directly above the positioning component, and the moving end of the truss is provided with a suction cup for gripping the blister tray; when the robot has finished transporting the wheel hub bearings or brake discs in a certain layer of the material frame, the truss will separate the blister trays used to separate the wheel hub bearings or brake discs from the material frame.

[0011] S3: The identification component sequentially identifies the posture of the wheel hub bearing and brake disc being transported in S2.

[0012] Furthermore, the posture of the wheel hub bearing includes the position of the mounting lug at the bottom relative to the identification component, and the posture of the brake disc includes the position of the tightening hole relative to the identification component; the identification component includes a centering bracket and a first camera and a second camera mounted on the centering bracket, the brake disc is placed on the top of the centering bracket and forms a centering structure, the first camera can identify the posture of the wheel hub bearing, and the second camera can identify the posture of the brake disc.

[0013] S4: The assembly component aligns the wheel hub bearing in S3 with the axis of the brake disc and the corresponding hole positions.

[0014] Furthermore, the assembly component includes a contour tray, the top of which forms a groove for placing the bearing mounting ring of the wheel hub bearing. A third camera is fixed directly above the contour tray, which can identify the position of the threaded hole of the wheel hub bearing relative to the contour tray. The position of the contour tray relative to the identification component is fixed. After the assembly is completed, the brake disc coincides with the axis of the wheel hub bearing and the threaded hole is aligned with the tightening hole.

[0015] S5: The double-speed chain assembly will simultaneously transport the wheel hub bearing and brake disc from S4 to the disc runout detection machine and tighten the assembly to complete the assembly.

[0016] Furthermore, the double-speed chain assembly includes a chain conveying mechanism for conveying the wheel hub bearing and brake disc. A transfer machine is fixedly connected to one or both ends of the chain conveying mechanism. The transfer machine is perpendicular to the conveying direction of the chain conveying mechanism, and both ends of the transfer machine are connected to parallel chain conveying mechanisms. The double-speed chain assembly conveys the assembled wheel hub bearing and brake disc to the inlet of a disc slip detection machine. The disc slip detection machine performs disc slip detection on the end face of the brake disc in the assembled assembly. After the disc slip detection machine completes the detection, the assembled assembly is transported from the outlet to a tightening assembly. The tightening assembly includes a tightening gun and a nail feeder. The tightening assembly can fix the assembled assembly together with bolts to form an assembly.

[0017] S6: The flipping and transfer assembly will transport the assembly completed in S5 to the next process station and flip it over.

[0018] Furthermore, the flipping and loading assembly includes a moving part and a clamping and flipping part disposed at the moving end of the moving part. The moving part can drive the clamping and flipping part to restrict the position of the assembly and the height relative to the tightening assembly. After the moving part moves the clamping and flipping part and then moves the assembly to the next process station, the clamping and flipping part flips the assembly 180 degrees.

[0019] As can be seen from the above technical solution, the present invention has the following beneficial effects:

[0020] This invention divides the assembly process of brake discs and wheel hub bearings into positioning, handling, posture adjustment, assembly, disc runout detection, bolt tightening, and flipping, and uses corresponding equipment to achieve automatic feeding, automatic assembly, automatic detection, automatic assembly, and automatic flipping of brake discs and wheel hub bearings. This enables the brake discs and wheel hub bearings to achieve axis alignment and hole alignment during the assembly process, and avoids collisions between their surfaces, thereby improving assembly quality and efficiency. Attached Figure Description

[0021] Figure 1 This is a flowchart of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of an embodiment of an automated assembly equipment;

[0023] Figure 3 This is a schematic diagram of the structure of an embodiment of the positioning component;

[0024] Figure 4 is a schematic diagram of an embodiment of the grasping component and a partially enlarged structure;

[0025] Figure 5 A schematic diagram of an embodiment for identifying components and suction cup holders;

[0026] Figure 6 A schematic diagram of an embodiment for the fixed connection of the assembly component and the speed-multiplying chain component;

[0027] Figure 7 for Figure 6 Schematic diagram of the contoured pallet structure;

[0028] Figure 8 A schematic diagram of an embodiment of the disc jump detection machine, tightening assembly, and flip-over loading assembly;

[0029] Figure 9 This is a schematic diagram of the brake disc structure;

[0030] Figure 10 This is a schematic diagram of a wheel hub bearing structure.

[0031] In the diagram: 1. Positioning component; 11. Fixing bracket; 12. Fixing wrench; 2. Gripping component; 21. Robot; 22. Suction cup bracket; 23. Gripping suction cup; 24. Truss; 25. Blister cup; 3. Recognition component; 31. Centering bracket; 32. First camera; 33. Second camera; 4. Assembly component; 41. Contouring tray; 42. Third camera; 5. Speed-up chain component; 51. Chain conveyor mechanism; 52. Transfer mechanism. 6. Disc jump detection machine; 7. Tightening assembly; 71. Tightening gun; 72. Nail feeder; 8. Turning and transferring load assembly; 81. Moving part; 82. Clamping and turning part; 9. Brake disc; 91. Mounting plate; 92. Brake pad; 93. Through hole; 94. Tightening hole; 10. Wheel hub bearing; 101. Bearing mounting ring; 102. Mounting protrusion; 103. Mounting ear; 104. Mounting disc; 105. Positioning pin; 106. Threaded hole. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] In the description of the embodiments of the present invention, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0034] As is known from common knowledge, the wheel hub bearing 10 and the brake disc 9 are placed in different material frames. The wheel hub bearing 10 and the brake disc 9 are placed in their respective material frames in fixed quantities per row and column, and each layer is separated by a blister pack that matches the shape of the wheel hub bearing 10 and the brake disc 9, so that the wheel hub bearing 10 or the brake disc 9 do not come into contact with each other. This ensures that the wheel hub bearing 10 or the brake disc 9 will not collide when placed in their respective material frames, thus guaranteeing their surface quality.

[0035] like Figure 1 and Figure 2 As shown, a wheel hub bearing 10 and a brake disc 9 are placed in the material frame. The positioning component 1 fixes their positions. The gripping component 2 transports the wheel hub bearing 10 and the brake disc 9 to the identification component 3 for identification. Then, the wheel hub bearing 10 and the brake disc 9 are assembled into a composite body by the assembly component 4. The double-speed chain component 5 transports the composite body to the disc jump detection machine 6 for disc jump detection. Then, the tightening component 7 connects the composite body into an assembly body by bolts. After the assembly body is moved by the flipping and transfer component and flipped 180 degrees, it enters the next process station, so that the spline hole of the wheel hub bearing 10 is matched with the spline of the drive shaft of the next process.

[0036] Furthermore, the first step of this embodiment is: the positioning component 1 fixes the positions of the material frame for placing the hub bearing 10 and the brake disc 9 respectively.

[0037] Specifically, the positions of the wheel hub bearing 10 and the brake disc 9 relative to the material frame are fixed. After the position of the material frame relative to the positioning component 1 is fixed, the positions of the positioning component 1 relative to the wheel hub bearing 10 and the brake disc 9 are also fixed. Thus, the positions of the wheel hub bearing 10 and the brake disc 9 can be determined after the position of the positioning component 1 is determined.

[0038] Furthermore, in the first step, the positioning component 1 is fixed to the ground. The positioning component 1 includes a fixed bracket 11 and a fixed wrench 12 set on the fixed bracket 11. The fixed bracket 11 is a U-shaped bracket. The two sides of the fixed bracket 11 can restrict the material frame. The fixed wrench 12 is fixedly connected to the bottom of the material frame.

[0039] Specifically, the positioning component 1 is bolted to the factory floor, thus fixing the material frame to the ground, and consequently fixing the wheel hub bearing 10 and brake disc 9 to their positions relative to the ground. Secondly, the fixing bracket 11 is bolted to the ground; one end is an opening allowing the material frame to enter, and the middle area is a cavity for placing the material frame. The two sides of the fixing bracket 11 are vertical plates that can contact the sides of the material frame, thus restricting its lateral movement. Thirdly, the third side of the fixing bracket 11 is the bottom of a U-shaped bracket, which is bolted to a fixing wrench 12. The fixing wrench 12, through a cylinder and a limiting block, applies force to the bottom of the material frame, thus restricting its forward and backward movement. This fixes the position of the material frame relative to the positioning component 1, and consequently, the positions of the wheel hub bearing 10 and brake disc 9 relative to the fixing bracket 11. This improves the gripping accuracy of the gripping component 2 in gripping the wheel hub bearing 10 or brake disc 9, reduces additional contact or impact, and ensures surface quality.

[0040] Furthermore, the second step of this embodiment is: the gripping component 2 sequentially and repeatedly grips the wheel hub bearing 10 or the blister tray and the brake disc 9 or the blister tray from the material frame fixed in the first step.

[0041] Specifically, the gripping component 2 sequentially grips the hub bearings 10 or brake discs 9 from different material frames. After each layer of hub bearings 10 or brake discs 9 is gripped, the blister pack or brake disc 9 of that layer is moved in to expose the hub bearings 10 or brake discs 9 of the next layer. The gripping component 2 grips the hub bearings 10 first and then the brake discs 9, so that when the two are put together, the through hole 93 of the brake disc 9 just passes through the positioning post 105 of the hub bearing 10, and the brake disc 9 will not detach from the positioning post 105 under the action of gravity, thus fixing the position of the two.

[0042] like Figure 4a and Figure 4b As shown, the gripping component 2 includes: a robot 21, which is fixed to the ground. The moving end of the robot 21 is equipped with a suction cup bracket 22, which has a V-shaped structure. Both ends of the suction cup bracket 22 are respectively equipped with gripping suction cups 23 for gripping brake discs 9 or gripping wheel hub bearings 10; and a truss 24, which is fixed to the ground and directly above the positioning component 1. The moving end of the truss 24 is equipped with a blister suction cup 25 for gripping blister trays. When the robot 21 has finished transporting the wheel hub bearings 10 or brake discs 9 in a certain layer of the material frame, the truss 24 will separate the blister trays used to separate the wheel hub bearings 10 or brake discs 9 from the material frame.

[0043] Specifically, the base of robot 21 is fixed to the ground with bolts, so that the position of robot 21 relative to positioning component 1 is fixed, and thus the position of wheel bearing 10 or brake disc 9 is fixed. Secondly, the middle position of suction cup bracket 22 is fixedly connected to the moving end of robot 21, so that it can drive suction cup bracket 22 to move in space. The end of suction cup bracket 22 can respectively grab brake disc 9 or wheel bearing 10, thereby driving brake disc 9 or wheel bearing 10 to change their own posture, so that the two can be assembled into one in subsequent steps.

[0044] Secondly, the truss 24 has a portal frame structure, consisting of two vertical beams and one horizontal beam. The vertical beams are fixed to the ground, thus fixing their relative positions to the robot 21 and the positioning component 1. The horizontal beam is positioned directly above the material frame, and a blister suction cup 25 that can move along the horizontal beam is mounted on it, allowing its movement trajectory to intersect with the material frame. When it is necessary to pick up the blister from the material frame, the blister suction cup 25 can move to a position to vacuum-pick up the blister, thereby exposing the next layer of wheel hub bearing 10 or brake disc 9. It works in conjunction with the robot 21 to achieve automatic feeding of the wheel hub bearing 10 or brake disc 9, improving the production efficiency of the automatic assembly equipment.

[0045] Furthermore, the third step is: the identification component 3 sequentially identifies the posture of the wheel hub bearing 10 and brake disc 9 that were transported in the second step.

[0046] Specifically, the robot 21 moves the wheel hub bearing 10 or the brake disc 9 into the field of view of the recognition component 3, enabling it to perform posture recognition on both. The principle of this recognition is to identify the position of the feature points of the wheel hub bearing 10 or the brake disc 9 relative to the recognition component 3, thereby determining the position of the feature points of the wheel hub bearing 10 or the brake disc 9 relative to the robot 21, and then controlling the robot 21 to drive the suction cup bracket 22 to change the posture of the wheel hub bearing 10 or the brake disc 9.

[0047] like Figure 5 As shown, the posture of the wheel hub bearing 10 includes the position of the bottom protruding mounting lug 103 relative to the identification component 3, and the posture of the brake disc 9 includes the position of the tightening hole 94 relative to the identification component 3. The identification component 3 includes a centering bracket 31 and a first camera 32 and a second camera 33 disposed on the centering bracket 31. The brake disc 9 is placed on the top of the centering bracket 31 and forms a centering structure. The first camera 32 can identify the posture of the wheel hub bearing 10, and the second camera 33 can identify the posture of the brake disc 9.

[0048] Specifically, robot 21 transports brake disc 9 to the top surface of centering bracket 31. The centering design of centering bracket 31 makes the axis of brake disc 9 coincide with the axis of centering bracket 31, thereby determining the position of brake disc 9 relative to recognition component 3, and then determining the position of brake disc 9 relative to the base of robot 21. This allows robot 21 to accurately transport brake disc 9 to the designated position. Then, second camera 33 identifies the position and angle of tightening hole 94 of brake disc 9 relative to centering bracket 31, thereby determining the position and angle of tightening hole 94 relative to robot 21. This allows robot 21 to drive gripping suction cup 23 to accurately change the position and orientation of brake disc 9.

[0049] Secondly, the first camera 32 is fixedly connected to the centering bracket 31. The robot 21 aligns the bottom of the wheel hub bearing 10 with the first camera 32 to take a picture and obtain the position of the four mounting ears 103 relative to the centering bracket 31, and then obtains its position relative to the suction cup bracket 22. Then the robot 21 drives the suction cup bracket 22 to move it to the designated position, improve its handling accuracy, and thus improve the accuracy of subsequent assembly, avoiding mismatch or collision during the subsequent assembly of the brake disc 9 and the wheel hub bearing 10.

[0050] Furthermore, the fourth step is: the assembly component 4 aligns the axis of the wheel hub bearing 10 from the third step with that of the brake disc 9 and mates the corresponding holes.

[0051] Specifically, in the fourth step, the through hole 93 of the brake disc 9 needs to be inserted into the positioning pin 105 of the wheel hub bearing 10, and the tightening hole 94 of the brake disc 9 needs to be aligned with the axis of the threaded hole 106 of the wheel hub bearing 10, so that the two can be correctly assembled. Secondly, in the third step, the position of the tightening hole 94 of the brake disc 9 relative to the robot 21 is known, and the position of the axis of the brake disc 9 and the wheel hub bearing 10 relative to the robot 21 is also known, so that the assembly component 4 can align the axis of the brake disc 9 and the wheel hub bearing 10. Furthermore, by identifying the position of the threaded hole 106 of the wheel hub bearing 10 relative to the assembly component 4, the tightening hole 94 is aligned with the threaded hole 106, and the two form an assembly body, thereby improving the assembly accuracy, reducing the error of axis alignment but not the tightening hole 94 being misaligned with the threaded hole 106 during the assembly process, and improving production efficiency.

[0052] like Figure 6 , Figure 7 and Figure 10As shown, the assembly component 4 includes a contour tray 41. The top of the contour tray 41 forms a groove for placing the bearing mounting ring 101 of the wheel hub bearing 10. A third camera 42 is fixed directly above the contour tray 41. The third camera 42 can identify the position of the threaded hole 106 of the wheel hub bearing 10 relative to the contour tray 41. The position of the contour tray 41 relative to the identification component 3 is fixed. After the assembly is completed, the brake disc 9 coincides with the axis of the wheel hub bearing 10 and the threaded hole 106 is aligned with the tightening hole 94.

[0053] Specifically, Figure 6 The arrows in the diagram indicate the direction of the conveyor assembly of the speed-up chain component 5.

[0054] Specifically, the diameter of the bearing mounting ring 101 of the hub bearing 10 is equal to the diameter of the groove, which can be embedded in the groove. The top surface of the contour tray 41 forms four cylinders, which are distributed on both sides of the groove. The cylinders on the same side can contact the side of the same mounting ear 103, thereby restricting its movement. The four cylinders can simultaneously restrict the opposite mounting ears 103, thereby restricting the rotation of the mounting ears 103 relative to the contour tray 41, and thus restricting the horizontal movement of the hub bearing 10 relative to the contour tray 41. Secondly, the diameter of the groove is smaller than the diameter of the first layer of protrusions of the hub bearing 10, so that the top surface of the groove can restrict the vertical movement of the hub bearing 10, thereby fixing the position of the hub bearing 10 relative to the contour tray 41.

[0055] Secondly, the third camera 42 is fixed relative to the contour tray 41, and then fixed relative to the wheel hub bearing 10, so that it can identify the position of the threaded hole 106 of the wheel hub bearing 10 relative to the contour tray 41, and then determine the position of the threaded hole 106 relative to the identification component 3, and then determine the position of the threaded hole 106 relative to the tightening hole 94. This allows the robot 21 to adjust the position of the tightening hole 94 of the brake disc 9 during the assembly process of the brake disc 9 and the wheel hub bearing 10, so that the axis of the brake disc 9 coincides with that of the wheel hub bearing 10, and the threaded hole 106 is aligned with the tightening hole 94. Also, the five positioning pins 105 of the wheel hub bearing 10 are all engaged with the five through holes 93 of the brake disc 9, thereby forming an assembled body and improving the assembly accuracy.

[0056] Furthermore, this embodiment includes a fifth step, which is: the double-speed chain assembly 5 simultaneously and sequentially transports the wheel hub bearing 10 and brake disc 9, which have completed the fourth step, to the disc jump detection machine 6 and the tightening assembly 7 to complete the assembly.

[0057] Specifically, the double-speed chain assembly 5 forms a conveyor line for the assembled body, which can drive the assembled body to move along the plane, and then move it to the disc runout detection machine 6 for disc runout detection. The disc runout detection involves rotating the assembled body and measuring the axial runout value of its top surface (end face of the brake disc 9). Then, the measured value is compared with the specified value. Qualified assembled parts continue to be conveyed to the tightening assembly 7, and unqualified assembled parts are rejected by the robot 21 or conveyed to the tray by the branch conveyor line for rejection. Next, the tightening assembly 7 automatically picks up the bolts, inserts them into the tightening holes 94 and screws them into the threaded holes 106 to realize the assembly of the wheel hub bearing 10 and the brake disc 9. This realizes the automatic disc runout detection and rejection of the assembled body, and the automatic tightening of the bolts to form the assembly, thereby improving the assembly quality and assembly efficiency.

[0058] like Figure 6 As shown, the double-speed chain assembly 5 includes a chain conveying mechanism 51 for conveying the hub bearing 10 and the brake disc 9. A transfer machine 52 is fixedly connected to one or both ends of the chain conveying mechanism 51. The transfer machine 52 is perpendicular to the conveying direction of the chain conveying mechanism 51, and the two ends of the transfer machine 52 are respectively connected to the parallel chain conveying mechanism 51. The double-speed chain assembly 5 conveys the assembled body of the hub bearing 10 and the brake disc 9 to the inlet of the disc jump detection machine 6. The disc jump detection machine 6 performs disc jump detection on the end face of the brake disc 9 in the assembled body. After the disc jump detection machine 6 completes the detection, it transports the assembled body out of the outlet and conveys it to the tightening assembly 7. The tightening assembly 7 includes a tightening gun 71 and a nail feeder 72. The tightening assembly 7 can fix the assembled body together with bolts to form an assembly.

[0059] Specifically, the double-speed chain assembly 5 includes four chain conveyor mechanisms 51 with parallel lengths. The transfer machine 52 is fixedly installed at both ends of the chain conveyor mechanism 51 to move the assembled body to the next chain conveyor mechanism 51, realizing the zigzag conveying of the assembled body, thereby improving the buffering capacity of the double-speed chain assembly 5 and avoiding material interruption in subsequent processes. In addition, the double-speed chain assembly 5 can change its own conveying speed according to the detection rate of the disc jump detection machine 6, thereby achieving stable production of the production line and improving the assembly efficiency of the brake disc 9 and the wheel hub bearing 10.

[0060] The disc jump detection machine 6 is a ZS-LXJY-DT-01 model disc jump detection machine from Changchun Zhongsheng. It can automatically detect the disc jump on the top surface of the assembled body and transport the assembled body after the test to the tightening component 7. The tightening gun 71 is an ECSF16 electric screwdriver from Matou Power Tools, which is mounted on the moving end of the robot 21 to automatically tighten the bolts. The nail feeder 72 is a JC2304054 screw feeding device from Suzhou Jieou Precision Technology Co., Ltd. The tightening gun 71 takes the screw from the nail feeder 72 and screws it into the threaded hole 106 of the wheel hub bearing 10 to realize the automatic assembly of the brake disc 9 and the wheel hub bearing 10. The entire process is automated, which can improve the assembly accuracy and quality, as well as the assembly efficiency.

[0061] Furthermore, the sixth step involves the transfer and loading assembly 8 transporting the assembly completed in the fifth step to the next process station and flipping it over.

[0062] Specifically, in the assembly, the brake disc 9 is located above the wheel hub bearing 10. The spline hole at the center of the bearing mounting ring 101 of the wheel hub bearing 10 is opposite to the flipping and transfer assembly 8. After the flipping and transfer assembly 8 moves the assembly horizontally to the next station, it flips it 180 degrees so that the spline hole is opposite to the flipping and transfer assembly 8, and then opposite to the product of the next process, thereby ensuring the continuous progress of the subsequent process.

[0063] From the first step to the sixth step, robots 21 or conveyor lines are used to automatically transport the brake disc 9 and the wheel hub bearing 10. This ensures the accuracy of transport and assembly, thereby improving the assembly quality. At the same time, the automated assembly line can improve the assembly efficiency.

[0064] like Figure 8 As shown, the flipping and loading assembly 8 includes a moving part 81 and a clamping and flipping part 82 disposed at the moving end of the moving part 81. The moving part 81 can drive the clamping and flipping part 82 to restrict the position of the assembly and the height relative to the tightening assembly 7. After the moving part 81 moves the clamping and flipping part 82 and then moves the assembly to the next process station, the clamping and flipping part 82 flips the assembly 180 degrees.

[0065] Specifically, the moving part 81 can activate the clamping and flipping part 82 to grasp the assembly and move it to a designated position. The moving trajectory of the moving part 81 is a vertical plane, ensuring that the axis of the assembly remains vertical throughout the movement. After the assembly is moved to the designated position, the clamping and flipping part 82 flips the assembly 180 degrees. The moving part 81 moves the height of the assembly up or down so that the end face of the spline hole is aligned with and maintained with the end face of the drive shaft in the next process. This prevents the end face of the spline hole from making hard contact with the end face of the drive shaft when the drive shaft adjusts its angle and thus the spline angle, thereby avoiding collision between the surfaces of the two, improving the surface quality during the assembly process, and increasing the assembly accuracy and efficiency of subsequent processes.

[0066] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

[0067] The technologies, shapes, and structures not described in detail in this invention are all known technologies.

Claims

1. A processing method for an automatic assembly equipment capable of automatically assembling wheel hub bearings and brake discs, wherein the wheel hub bearings (10) and the brake discs (9) are respectively placed in a material frame, and a blister pack is placed in the material frame to separate the wheel hub bearings (10) or the brake discs (9) for multi-layer placement, characterized in that, include: S1: The positioning component (1) fixes the position of the material frame where the hub bearing (10) and brake disc (9) are placed respectively; S2: The gripping component (2) sequentially and repeatedly grips the wheel hub bearing (10) or blister tray and the brake disc (9) or blister tray from the fixed material frame in S1; S3: The identification component (3) sequentially identifies the posture of the wheel hub bearing (10) and brake disc (9) transported in S2; S4: The assembly component (4) aligns the axis of the wheel hub bearing (10) in S3 with the axis of the brake disc (9) and the corresponding hole positions to form an assembly body; S5: The double-speed chain assembly (5) sequentially transports the assembled body to the disc jump detection machine (6) and tightening assembly (7) to complete the assembly and form the assembly body; S6: The flipping and transfer assembly (8) transports the assembly to the next process station and flips it; In S3, the posture of the wheel hub bearing (10) includes the position of the bottom protruding mounting lug (103) relative to the identification component (3), and the posture of the brake disc (9) includes the position of the tightening hole (94) relative to the identification component (3). The identification component (3) includes a centering bracket (31) and a first camera (32) and a second camera (33) mounted on the centering bracket (31). The brake disc (9) is placed on the top of the centering bracket (31) and forms a centering structure. The first camera (32) can identify the posture of the wheel hub bearing (10), and the second camera (33) can identify the posture of the brake disc (9). In S4, the assembly component (4) includes a contour tray (41), the top of which forms a groove for placing the bearing mounting ring (101) of the wheel hub bearing (10). A third camera (42) is fixed directly above the contour tray (41), which can identify the position of the threaded hole (106) of the wheel hub bearing (10) relative to the contour tray (41). The position of the contour tray (41) relative to the identification component (3) is fixed. After the assembly is completed, the brake disc (9) coincides with the axis of the wheel hub bearing (10) and the threaded hole (106) is aligned with the tightening hole (94). The top surface of the contour tray (41) forms four cylinders, which are distributed on both sides of the groove. The cylinders on the same side can contact the side of the same mounting ear (103) to restrict its movement. The four cylinders can simultaneously restrict the opposite mounting ears (103), thereby restricting the rotation of the mounting ears (103) relative to the contour tray (41), and thus restricting the horizontal movement of the wheel hub bearing (10) relative to the contour tray (41).

2. The processing method according to claim 1, characterized in that: In S1, the positioning component (1) is fixed to the ground. The positioning component (1) includes a fixed bracket (11) and a fixed wrench (12) disposed on the fixed bracket (11). The fixed bracket (11) is a U-shaped bracket. The two sides of the fixed bracket (11) can restrict the material frame. The fixed wrench (12) is fixedly connected to the bottom of the material frame.

3. The processing method according to claim 1, characterized in that: In S2, the grasping component (2) includes: Robot (21), the robot (21) is fixed on the ground, the moving end of the robot (21) is provided with a suction cup bracket (22), the suction cup bracket (22) is a V-shaped structure, and the two ends of the suction cup bracket (22) are respectively provided with a gripping suction cup (23) for gripping the brake disc (9) or gripping the wheel hub bearing (10); A truss (24) is fixed to the ground and directly above the positioning component (1), and the moving end of the truss (24) is provided with a blister suction cup (25) for gripping the blister tray. When the robot (21) has finished transporting the hub bearing (10) or brake disc (9) of a certain layer in the material frame, the truss (24) will separate the blister pack used to separate the hub bearing (10) or brake disc (9) from the material frame.

4. The processing method according to claim 1, characterized in that: In S5, the double-speed chain assembly (5) includes a chain conveying mechanism (51) for conveying the hub bearing (10) and the brake disc (9). A transfer machine (52) is fixedly connected to one or both ends of the chain conveying mechanism (51). The transfer machine (52) is perpendicular to the conveying direction of the chain conveying mechanism (51). The two ends of the transfer machine (52) are respectively connected to the chain conveying mechanism (51) arranged in parallel. The speed-multiplying chain assembly (5) transports the assembled wheel hub bearing (10) and brake disc (9) to the inlet of the disc jump detection machine (6). The disc jump detection machine (6) performs disc jump detection on the end face of the brake disc (9) in the assembled body. After the disc jump detection machine (6) finishes the detection, it transports the assembled body out from the outlet to the tightening assembly (7). The tightening assembly (7) includes a tightening gun (71) and a nail feeder (72). The tightening assembly (7) can fix the assembled parts together by bolts to form an assembly.

5. The processing method according to claim 1, characterized in that: In S6, the flipping and loading assembly (8) includes a moving part (81) and a clamping and flipping part (82) disposed at the moving end of the moving part (81). The moving part (81) can drive the clamping and flipping part (82) to restrict the position of the assembly and its height relative to the tightening assembly (7). After the moving part (81) moves the clamping and flipping part (82) and then moves the assembly to the next process station, the clamping and flipping part (82) flips the assembly 180 degrees.

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