An apparatus for assembling a large O-ring on a hub motor end cover

Abstract

The application relates to an equipment for assembling large O-rings on hub motor end covers, comprising a machining platform, a mounting base, a sorting assembly, a pressing assembly and a grabbing assembly; the mounting base is arranged on the machining platform and is used for placing the motor end cover; the sorting assembly is arranged on one side of the machining platform and is used for sorting out single O-rings and laying out the single O-rings flat; the pressing assembly is arranged on the machining platform and above the mounting base; the grabbing assembly is arranged on the machining platform and between the pressing assembly and the sorting assembly, and is used for grabbing the single O-rings sorted out by the sorting assembly and moving the single O-rings to the pressing assembly; and the pressing assembly is used for pressing the O-rings on the motor end cover of the mounting base. The application has the effect of high production efficiency.

Description

Technical Field

[0001] This application relates to the technical field of hub motor manufacturing equipment, and in particular to a device for mounting large O-rings on the end caps of hub motors. Background Technology

[0002] An O-ring is a rubber seal with a circular cross-section. It is a common mechanical design for sealing and is also called an O-ring rubber seal. O-rings can be used in static applications as well as in dynamic applications where there is relative movement between components.

[0003] Currently, Chinese patent application number 2022213020304 discloses an automatic O-ring assembly mechanism, including a frame, an O-ring feeder and a robot arm, a drive mechanism and an O-ring gripper, an O-ring gripper including a vertical movable mechanism and a horizontal movable mechanism driven by the drive mechanism, and an O-ring gripper also having a mounting component, an O-ring expansion mechanism in cooperation with the mounting component, a number of grooves on the circumference of the mounting component, and an O-ring expansion mechanism having a number of expanding pins located in the grooves and moving radially relative to the mounting component.

[0004] Although the above mechanism can assemble O-rings from the feeder to the workpiece, it cannot assemble large O-rings such as 300mm due to the small size of the O-rings it uses. Therefore, large O-rings are generally assembled manually, which results in low production efficiency and thus requires improvement. Summary of the Invention

[0005] To improve production efficiency, this application provides a device for mounting large O-rings on the end caps of wheel hub motors.

[0006] The device for mounting a large O-ring on the end cover of a hub motor provided in this application adopts the following technical solution: A device for mounting large O-rings on the end caps of hub motors includes a processing platform, a mounting base, a sorting assembly, a pressing assembly, and a gripping assembly; The mounting base is disposed on the processing platform and is used to place the motor end cover. The sorting component is disposed on one side of the processing platform and is used to sort out individual O-rings and lay them flat. The pressing assembly is disposed on the processing platform and located above the mounting base. The gripping assembly is disposed on the processing platform and located between the pressing assembly and the sorting assembly. The gripping assembly is used to grip the individual O-rings sorted by the sorting assembly and move them to the pressing assembly. The pressing assembly is used to press the O-rings onto the motor end cover of the mounting base.

[0007] Preferably, the sorting assembly includes a circulating conveyor, a plurality of sorting seats spaced apart on the circulating conveyor, and a screening mechanism disposed on one side of the circulating conveyor; The circulating conveyor has a screening station and a gripping station. The circulating conveyor is used to pass the sorting seats one by one through the screening station and the gripping station. The screening mechanism screens out individual O-rings at the screening station, shapes them, and lays them flat on the sorting seat. The gripping component grips the O-rings on the sorting seat at the gripping station.

[0008] Preferably, the screening mechanism includes a vibrating screening seat, a vibrating spring disposed on the vibrating screening seat, and a screening support frame disposed on the vibrating spring; A material crossbar is installed at an incline on the screening support frame. Several O-rings are fitted on the material crossbar. A screening cylinder is provided on the screening support frame. A screening block is connected to the screening cylinder. A screening groove is formed between the screening block and the end of the material crossbar. A shaping mold is fixed to the end of the material crossbar. The shaping mold is vertically arranged and has a conical structure that is smaller at the top and larger at the bottom. When the sorting seat passes through the screening station, the lower end of the shaping mold is located directly above the sorting seat.

[0009] Preferably, the gripping assembly includes a gripping support frame, a moving mechanism disposed on the gripping support frame, and a gripping mechanism disposed on the moving mechanism. The moving mechanism is used to drive the gripping mechanism to move between the sorting assembly and the pressing assembly. The gripping mechanism is used to open outward from the sorting assembly to grip the O-ring and transfer it to the pressing assembly.

[0010] Preferably, the moving mechanism includes a transverse truss disposed on the gripping support frame, a movable seat slidably disposed on the transverse truss, and a vertical truss slidably disposed on the movable seat, and the gripping mechanism is disposed on the vertical truss; The transverse truss is provided with a transverse drive unit for driving the movable seat to slide laterally, and the movable seat is provided with a vertical drive unit for driving the vertical truss to slide vertically.

[0011] Preferably, the gripping mechanism includes a gripping mounting plate and a plurality of gripping parts arranged along the circumference of the gripping mounting plate; The gripping part includes a gripping mounting block fixed to the lower surface of the gripping mounting plate. A claw is hinged to the gripping mounting block. The outer surface of the claw is an opening surface, which is used to contact the inner wall surface of the O-ring. A torsion spring is installed on the hinge shaft between the claw and the gripping mounting block. The torsion spring is used to provide a flipping force on the opening surface of the claw against the outer circumference of the gripping mounting plate. A gripping cylinder is installed on the gripping mounting block, and a gripping top block is installed on the output rod of the gripping cylinder. The gripping top block is used to abut against the opening surface of the gripper to drive the gripper to flip into a vertical state.

[0012] Preferably, the gripping mechanism further includes a gripping column and a gripping rotary cylinder. The cylinder body of the gripping rotary cylinder is mounted on the moving mechanism. The upper end of the gripping column is mounted on the output end of the gripping rotary cylinder, and the lower end of the gripping column is hinged to the center position of the gripping mounting plate.

[0013] Preferably, the pressing assembly includes a pressing support frame disposed on the processing platform and a pressing support plate vertically slidably disposed in the pressing support frame. A pressing rotary cylinder is disposed on the pressing support plate, a pressing template is mounted on the pressing rotary cylinder, and pressing molds are disposed on both surfaces of the pressing template. The pressing molds are used to receive the O-rings transferred by the gripping assembly. The press-fit support frame is provided with a press-fit drive mechanism for driving the press-fit support frame to move, and the press-fit mold is used to contact the motor end cover on the mounting base to press the O-ring into the motor end cover.

[0014] Preferably, the press-fit mold includes a press-fit mounting base and a press-fit mounting cavity disposed in the press-fit mounting base. A press-fit mold seat is slidably mounted in the press-fit mounting cavity. A press-fit mold ring for clamping an O-ring is disposed on the press-fit mold seat. The press-fit mold ring is used to mate with the mounting edge of the motor end cover. A press-fit spring is disposed in the press-fit mounting cavity.

[0015] Preferably, the mounting base is slidably disposed on the processing platform, and the mounting base has a receiving station, a pressing station, and a discharging station on the processing platform. The pressing station is located at the pressing assembly. The processing platform is provided with a base driving mechanism for driving the mounting base to move between the receiving station, the pressing station, and the discharging station. The processing platform is provided with an end cap transfer mechanism at the receiving station and the discharging station.

[0016] In summary, this application includes at least one of the following beneficial technical effects: This application sorts out individual O-rings, then picks up and transfers them to a pressing assembly, which presses the O-rings onto the motor end cover. This enables the installation of large-size O-rings, reduces manual intervention, and achieves a high degree of automation, thereby effectively improving production efficiency. Attached Figure Description

[0017] Figure 1 This is a structural diagram of a device with a large O-ring mounted on the end cover of a hub motor.

[0018] Figure 2 This is a schematic diagram of the screening mechanism.

[0019] Figure 3 This is a schematic diagram of a circulating conveyor.

[0020] Figure 4 This is a structural diagram of the transfer and conveying section.

[0021] Figure 5 This is a schematic diagram of the sorting station.

[0022] Figure 6 This is a structural diagram of the crawling component.

[0023] Figure 7 This is a schematic diagram of the gripping mechanism.

[0024] Figure 8a This is a structural diagram of the press-fit assembly.

[0025] Figure 8b This is a schematic diagram of the press-fitting mold.

[0026] Figure 9a This is a schematic diagram of the first state of the gripping component gripping the O-ring from the sorting seat.

[0027] Figure 9b This is a schematic diagram of the second state of the gripping component gripping the O-ring from the sorting seat.

[0028] Figure 10a This is a schematic diagram of the first state where the gripping component transfers the O-ring to the pressing mold.

[0029] Figure 10b This is a schematic diagram of the second state in which the gripping component transfers the O-ring to the pressing mold.

[0030] Figure 11a This is a schematic diagram of the first state of pressing O-rings with a pressing mold.

[0031] Figure 11b This is a schematic diagram of the second state of pressing O-rings with a pressing mold.

[0032] Figure 12 This is a schematic diagram of the installation of the detection and screening components.

[0033] Figure 13 This is a schematic diagram of the end cap placement rack.

[0034] Figure 14 This is a schematic diagram of the end cap transfer mechanism.

[0035] Figure 15 This is a schematic diagram of the detection and screening component.

[0036] Explanation of reference numerals in the attached drawings: 1. Processing platform; 2. Mounting base; 3. Sorting assembly; 31. Circulating conveyor; 311. Conveyor frame; 312. Upper conveyor; 313. Lower conveyor; 314. Transfer conveyor; 3141. Outer frame; 3142. Lifting frame; 3143. Transfer conveyor; 3144. Lifting cylinder; 32. Sorting seat; 321. Receiving trough; 33. Screening mechanism; 331. Vibrating screening seat; 332. Vibrating spring; 333. Screening support frame; 334. Material crossbar; 335. Screening cylinder; 336. Screening stop; 337. Screening trough; 338. Shaping mold; 4. Pressing assembly; 41. Pressing support frame; 42. Pressing support plate; 43. Pressing rotary cylinder; 44. Pressing template; 45. Pressing mold; 451. Pressing mounting base; 452. Pressing mounting cavity; 453. Pressing mold base; 454. Pressing mold ring; 455. Pressing spring; 456. Stopping edge; 46. Pressing drive mechanism; 5. Gripping assembly; 51. Grasping support frame; 52. Moving mechanism; 521. Horizontal truss; 522. Moving seat; 523. Vertical truss; 524. Horizontal drive unit; 525. Vertical drive unit; 53. Grasping mechanism; 531. Grasping column; 532. Grasping rotary cylinder; 533. Grasping mounting plate; 534. Grasping mounting block; 535. Claw; 5351. Spreading surface; 536. Torsion spring; 537. Grasping cylinder; 538. Grasping top block; 6. Motor end cover; 61. End cover edge Along; 7. End cap transfer mechanism; 71. End cap transfer frame; 72. End cap transfer horizontal cylinder; 73. End cap transfer vertical cylinder; 74. Transfer bracket; 75. End cap gripper cylinder; 76. End cap clamp; 8. End cap placement rack; 9. Detection and screening assembly; 91. Detection platform; 92. Detection conveyor belt; 93. Detection assembly; 931. Detection bracket; 932. Digital infrared distance sensor; 94. First discharge conveyor belt; 95. Second discharge conveyor belt; 96. Detection and transfer mechanism. Detailed Implementation

[0037] The following is in conjunction with the appendix Figure 1-15 This application will be described in further detail.

[0038] Example 1 A device for mounting large O-rings on the end cover of a hub motor, as described in the reference. Figure 1 As shown, the device includes a processing platform 1, a mounting base 2, a sorting component 3, a pressing component 4, and a gripping component 5. In this application, the sorting component 3 sorts out individual O-rings, and then the gripping component 5 grips and transfers the individual O-rings to the pressing component 4. The pressing component 4 then presses the O-rings onto the motor end cover 6, thereby realizing the installation of large-size O-rings. This reduces manual intervention, has a high degree of automation, and effectively improves production efficiency.

[0039] Mounting base 2 is set on processing platform 1. Mounting base 2 is used to place motor end cover 6. The shape of mounting base 2 is the same as that of motor end cover 6. Mounting base 2 is set in frustum shape. Mounting base 2 has a mounting groove in the middle. Motor end cover 6 will be received in the mounting groove. Mounting base 2 has a mounting position at the bottom of the mounting groove that matches the center hole of motor end cover 6. When motor end cover 6 is in mounting base 2, the machined surface of motor end cover 6 faces upward. The machined surface is the surface of motor end cover 6 that needs to be fitted with O-ring. The machined surface is the inner side of motor end cover 6. The inner side of motor end cover 6 has end cover edge 61. O-ring will be fitted on end cover edge 61, thereby forming a sealing effect on motor end cover 6.

[0040] The following is a description of sorting component 3.

[0041] The sorting component 3 is located on one side of the processing platform 1. The sorting component 3 is used to sort out individual O-rings and lay them flat.

[0042] Reference Figure 1 , Figure 2 and Figure 3 As shown, the sorting component 3 includes a circulating conveyor 31, a plurality of sorting seats 32 spaced apart on the circulating conveyor 31, and a screening mechanism 33 disposed on one side of the circulating conveyor 31. The circulating conveyor 31 has a screening station and a gripping station. The circulating conveyor 31 is used to pass the sorting seats 32 one by one through the screening station and the gripping station. The screening mechanism 33 screens out individual O-rings at the screening station and lays them flat on the sorting seat 32 after shaping. The gripping component 5 grips the O-rings on the sorting seat 32 at the gripping station.

[0043] The circulating conveyor 31 adopts a double-layer conveyor, which includes a conveyor frame 311, an upper conveyor 312 set on the conveyor frame 311, and a lower conveyor 313 set on the conveyor frame 311. The upper conveyor 312 and the lower conveyor 313 are arranged in an upper-lower position. Several sorting seats 32 are placed on the upper conveyor 312 and the lower conveyor 313 at intervals. Both sides of the conveyor frame 311 are provided with transfer conveying parts 314. Through the transfer conveying parts 314, the sorting seats 32 can form a circulating flow between the upper conveyor 312 and the lower conveyor 313.

[0044] Reference Figure 3 and Figure 4As shown, the transfer and conveying unit 314 includes an outer frame 3141 and a lifting frame 3142 that is slidably installed in the vertical direction. A transfer conveyor 3143 is installed on the lifting frame 3142. The transfer conveyor 3143 is horizontally arranged. A lifting cylinder 3144 is installed on the outer frame 3141. The output rod of the lifting cylinder 3144 is connected to the lifting frame 3142. The lifting cylinder 3144 can move the transfer conveyor 3143 between the upper conveyor 312 and the lower conveyor 313, so that the transfer conveyor 3143 can be engaged with the upper conveyor 312 or the lower conveyor 313, thereby realizing the circulating flow of the sorting seat 32 between the upper conveyor 312 and the lower conveyor 313.

[0045] It is worth noting that both the screening station and the gripping station are located on the upper conveyor 312. The sorting seats 32 are transported via the aforementioned circulating conveyor 31, ensuring that each sorting seat 32 passes through and can stop at both the screening and gripping stations. At the screening station, the screening mechanism 33 screens out individual O-rings, shapes them, and lays them flat on the sorting seat 32. At the gripping station, the gripping assembly 5 grips the O-rings on the sorting seat 32 and transfers them to the pressing assembly 4.

[0046] Reference Figure 2 As shown, the screening mechanism 33 includes a vibrating screening seat 331, a vibrating spring 332 disposed on the vibrating screening seat 331, and a screening support frame 333 disposed on the vibrating spring 332. A material crossbar 334 is obliquely installed on the screening support frame 333. Several O-rings are fitted on the material crossbar 334. A screening cylinder 335 is disposed on the screening support frame 333. A screening stop block 336 is connected to the screening cylinder 335. A screening groove 337 is formed between the screening stop block 336 and the end of the material crossbar 334.

[0047] A shaping mold 338 is fixed to the end of the material crossbar 334. The shaping mold 338 is set vertically and has a conical structure with a smaller top and a larger bottom. When the sorting seat 32 passes through the screening station, the lower end of the shaping mold 338 is located directly above the sorting seat 32.

[0048] A vibration motor is installed in the vibrating screening seat 331 to generate vibration force, which is transmitted to the screening support frame 333 through the vibration spring 332. As a result, the O-rings on the material crossbar 334 generate a downward moving force under vibration. The screening cylinder 335 drives the screening stop 336 to move, so that the screening stop 336 and the end of the material crossbar 334 abut and close. Alternatively, a screening groove 337 can be formed between the screening stop 336 and the end of the material crossbar 334. The screening groove 337 only allows one O-ring to pass through at a time. Under the vibration force, the O-ring can fall from the screening groove 337 onto the shaping mold 338.

[0049] It is worth noting that an infrared sensor is installed at the end of the material crossbar 334. When the O-ring falls and blocks the infrared light emitted by the infrared sensor, it indicates that the O-ring has passed through the screening groove 337 and fallen onto the shaping mold 338. After passing through the shaping mold 338, it is laid flat on the sorting seat 32. At this time, the vibration motor in the vibrating screening seat 331 will stop vibrating, and the screening cylinder 335 will drive the screening stop 336 to close the screening groove 337. When the next sorting seat 32 is moved to the screening station, the screening cylinder 335 drives the screening stop 336 to open the screening groove 337, and the vibrating screening seat 331 vibrates to sort and shape the next O-ring onto the sorting seat 32.

[0050] Because the forming mold 338 has a conical structure, the O-ring will be gradually rounded and fall onto the sorting seat 32, so that the O-ring maintains a complete circle shape and does not become twisted or other irregular. This makes it easier for the subsequent gripping component 5 to grip the O-ring.

[0051] The following is a description of the crawling component 5.

[0052] Reference Figure 1 and Figure 6 As shown, the gripping component 5 is set on the processing platform 1 and located between the pressing component 4 and the sorting component 3. The gripping component 5 is used to grip the individual O-rings sorted by the sorting component 3 and move them onto the pressing component 4.

[0053] Reference Figure 6 and Figure 7 As shown, the gripping assembly 5 includes a gripping support frame 51, a moving mechanism 52 disposed on the gripping support frame 51, and a gripping mechanism 53 disposed on the moving mechanism 52. The moving mechanism 52 is used to drive the gripping mechanism 53 to move between the sorting assembly 3 and the pressing assembly 4. The gripping mechanism 53 is used to open outward from the sorting assembly 3 to grip the O-ring and transfer it to the pressing assembly 4.

[0054] The moving mechanism 52 includes a transverse truss 521 mounted on the gripping support frame 51, a movable seat 522 slidably mounted on the transverse truss 521, and a vertical truss 523 slidably mounted on the movable seat 522. The gripping mechanism 53 is mounted on the vertical truss 523. The transverse truss 521 is provided with a transverse driving part 524 for driving the movable seat 522 to slide laterally, and the movable seat 522 is provided with a vertical driving part 525 for driving the vertical truss 523 to slide vertically.

[0055] The transverse drive unit 524 includes a transverse rack mounted on the transverse truss 521, and a transverse drive motor mounted on the movable seat 522. A transverse gear meshing with the transverse rack is mounted on the output shaft of the transverse drive motor. The transverse drive motor drives the transverse gear to rotate, causing the movable seat 522 to slide along the transverse truss 521.

[0056] The vertical drive unit 525 includes a vertical rack mounted on a vertical truss 523, a vertical drive motor mounted on a movable base 522, and a vertical gear meshing with the vertical rack mounted on the output shaft of the vertical drive motor. The vertical drive motor drives the vertical gear to rotate, causing the vertical rack to slide on the movable base 522.

[0057] Reference Figure 7 As shown, the gripping mechanism 53 includes a gripping column 531, a gripping rotary cylinder 532, a gripping mounting plate 533, and several gripping parts. The cylinder body of the gripping rotary cylinder 532 is installed at the lower end of the vertical truss 523 of the moving mechanism 52. The upper end of the gripping column 531 is installed on the output end of the gripping rotary cylinder 532. The lower end of the gripping column 531 is hinged to the center position of the gripping mounting plate 533.

[0058] The gripping mounting disk 533 is arranged in a disc shape, and a plurality of gripping parts are arranged along the circumference of the gripping mounting disk 533. In one embodiment, the number of gripping parts is set to 8, and the 8 gripping parts are evenly distributed on the gripping mounting disk 533.

[0059] The gripping unit includes a gripping mounting block 534 fixed to the lower surface of the gripping mounting disk 533. The gripping mounting block 534 is arranged vertically, and a claw 535 is hingedly mounted on the gripping mounting block 534. The outer surface of the claw 535 is an opening surface 5351, which faces the outer side of the circumference of the gripping mounting disk 533. The opening surface 5351 is used to contact the inner wall surface of the O-ring. A torsion spring 536 is mounted on the hinge shaft between the claw 535 and the gripping mounting block 534. The torsion spring 536 is used to provide a flipping force on the opening surface 5351 of the claw 535 towards the outer side of the circumference of the gripping mounting disk 533.

[0060] A gripping cylinder 537 is mounted on the gripping mounting block 534. A gripping top block 538 is mounted on the output rod of the gripping cylinder 537. The gripping top block 538 is used to abut against the spreading surface 5351 of the claw 535 to drive the claw 535 to flip into a vertical state.

[0061] Among them, reference Figure 5As shown, the sorting seat 32 has several accommodating grooves 321 circumferentially provided. The accommodating grooves 321 are used for the claws 535 to extend into. The accommodating grooves 321 are distributed in the radial direction of the sorting seat 32 starting from the outer edge surface of the sorting seat 32. When the O-ring is laid flat on the sorting seat 32, the O-ring will be placed horizontally on the accommodating grooves 321, so that when the claws 535 extend into the accommodating grooves 321, the spreading surface 5351 of the claws 535 can contact the inner wall surface of the O-ring.

[0062] Therefore, referring to Figure 9a and Figure 9b As shown, when the gripping component 5 needs to grip the O-ring from the sorting seat 32, the gripping cylinder 537 drives the gripping top block 538 to move downward. The gripping top block 538 will abut against the spreading surface 5351 of the claw 535 to drive the claw 535 to flip into a vertical state. The gripping rotation cylinder 532 adjusts the circumferential angle of the gripping mounting plate 533 in advance so that each claw 535 is located directly above the receiving groove 321 of the sorting seat 32.

[0063] When all the claws 535 are flipped into a vertical position, the circumference diameter formed by the lower ends of all the claws 535 will be smaller than the diameter of the O-ring. As a result, after the moving mechanism 52 drives the gripping mounting plate 533 to move down, the opening surface 5351 of all the claws 535 will be located inside the O-ring.

[0064] After the gripping mounting plate 533 moves down to the predetermined position to ensure that all the grippers 535 are inside the O-ring, the gripping cylinder 537 drives the gripping top block 538 to move upward. The gripping top block 538 will disengage from the spreading surface 5351 of the grippers 535. The grippers 535 will fold outward under the action of the torsion spring 536. When all the grippers 535 fold outward, all the grippers 535 will spread the O-ring outward to ensure that the O-ring can be restricted on the gripping mechanism 53.

[0065] Subsequently, the O-ring can be gripped and transferred to the pressing assembly 4 via the moving mechanism 52.

[0066] The following is a description of the press-fit component 4.

[0067] Reference Figure 1 and Figure 8a As shown, the press-fit assembly 4 is set on the processing platform 1 and located above the mounting base 2. The press-fit assembly 4 is used to press the O-ring onto the motor end cover 6 of the mounting base 2.

[0068] Reference Figure 8a and Figure 8bAs shown, the pressing assembly 4 includes a pressing support frame 41 mounted on the processing platform 1 and a pressing support plate 42 vertically slidably mounted in the pressing support frame 41. A pressing rotary cylinder 43 is mounted on the pressing support plate 42, and a pressing template 44 is mounted on the pressing rotary cylinder 43. Both surfaces of the pressing template 44 are provided with pressing molds 45. The pressing template 44 is horizontally positioned, allowing the two pressing molds 45 to rotate vertically. The pressing molds 45 are used to receive O-rings transferred from the gripping assembly 5. The pressing support frame 41 is equipped with a pressing drive mechanism 46 for moving the pressing support frame 41. The pressing molds 45 receive the O-rings transferred from the gripping assembly 5 and contact the motor end cover 6 on the mounting base 2 to press the O-rings onto the motor end cover 6.

[0069] The press-fitting drive mechanism 46 includes a press-fitting drive motor and a press-fitting drive screw. The press-fitting drive motor is mounted on the press-fitting support frame 41, and the press-fitting drive screw is threadedly connected to the press-fitting support plate 42. One end of the press-fitting drive screw is connected to the output shaft of the press-fitting drive motor, and the other end of the press-fitting drive screw is rotatably mounted on the processing platform 1. The press-fitting drive motor drives the press-fitting drive screw to rotate, thereby realizing the up-and-down movement of the press-fitting support plate 42 in the press-fitting support frame 41.

[0070] Reference Figure 8b As shown, the press-fit mold 45 includes a press-fit mounting base 451 and a press-fit mounting cavity 452 disposed in the press-fit mounting base 451. A press-fit mold base 453 is slidably mounted in the press-fit mounting cavity 452. A press-fit mold ring 454 for clamping an O-ring is disposed on the press-fit mold base 453. The press-fit mold ring 454 is used to mate with the mounting edge of the motor end cover 6. A press-fit spring 455 is disposed in the press-fit mounting cavity 452. When the press-fit mold ring 454 is not under pressure, the press-fit spring 455 will drive the press-fit mold ring 454 to protrude out of the press-fit mounting cavity 452. When the press-fit mold ring 454 is under pressure, the press-fit spring 455 will contract to allow the press-fit mold ring 454 to be completely hidden inside the press-fit mounting cavity 452.

[0071] The following describes the action of the gripping component 5 transferring the O-ring to the pressing component 4.

[0072] Reference Figure 10a and Figure 10b As shown, the pressing mold 45 is flipped to a horizontal position under the action of the pressing rotary cylinder 43. After the gripping component 5 grips the O-ring, it will drive the O-ring to move directly above the pressing mold 45. The gripping part stops after moving close to the pressing mold ring 454. At this time, the gripping cylinder 537 drives the gripping top block 538 to move downward. The gripping top block 538 will abut against the opening surface 5351 of the chuck 535 to drive the chuck 535 to flip into a vertical state. The O-ring will fall from the chuck 535 to the edge of the pressing mold ring 454.

[0073] Since the outer diameter of the press-fitting mold ring 454 is larger than the inner diameter of the O-ring, but the outer diameter of the press-fitting mold ring 454 is smaller than the outer diameter of the O-ring, the O-ring will be located on the edge of the press-fitting mold ring 454 but will not be fitted outside the press-fitting mold ring 454.

[0074] Subsequently, the gripping cylinder 537 continues to drive the gripping top block 538 downwards until it abuts against the edge of the pressing mold ring 454. At this point, the O-ring, squeezed by the gripping top block 538, will expand slightly outwards and be pressed onto the outside of the pressing mold ring 454, thus completing the transfer of the O-ring onto the pressing mold ring 454 by the gripping assembly 5. It is worth noting that when the gripping top block 538 moves downwards and abuts against the edge of the pressing mold ring 454, the gripping top block 538 will not disengage from the opening surface 5351 of the claw 535.

[0075] The outer diameter edge of the press-fit die ring 454 has a blocking edge 456. The blocking edge 456 has an inwardly tapering inclination and a thickness between 0.5mm and 1mm. When the O-ring is squeezed into and fitted onto the press-fit die ring 454 by the gripping top block 538, the blocking edge 456 can, to a certain extent, prevent the O-ring from falling off when the press-fit die ring 454 is flipped from horizontal to horizontal, thereby improving the reliability and stability of the equipment. Due to the setting of the blocking edge 456, a receiving groove adapted to the blocking edge 456 is provided on the edge of the cavity opening of the press-fit installation cavity 452.

[0076] The following describes the action of the press-fitting assembly 4 in transferring the O-ring to the motor end cover 6.

[0077] Reference Figure 11a and Figure 11b As shown, when the press-fit assembly 4 needs to press the O-ring into the motor end cover 6, the press-fit drive mechanism 46 drives the press-fit mold 45 to move toward the motor end cover 6. Subsequently, the press-fit mold ring 454 will contact the end cover edge 61 of the motor end cover 6. As the press-fit mold ring 454 continues to move downward, the press-fit spring 455 is compressed, and the press-fit mold ring 454 will gradually enter the press-fit mounting cavity 452. After the press-fit mold ring 454 is completely entered into the press-fit mounting cavity 452, the O-ring fitted outside the press-fit mold ring 454 will be squeezed off the press-fit mold ring 454 by the press-fit mounting seat 451, so that the O-ring will fall off and be fitted outside the end cover edge 61 of the motor end cover 6.

[0078] Since the outer diameter of the end cover edge 61 of the motor end cover 6 is smaller than the inner diameter of the O-ring, when the O-ring is detached from the press-fitting mold ring 454, the O-ring will be fitted outside the end cover edge 61, thereby realizing the action of the press-fitting assembly 4 pressing the O-ring into the motor end cover 6.

[0079] Example 2 Based on Example 1, referring to Figure 1 and Figure 12 As shown, the mounting base 2 is slidably mounted on the processing platform 1. The mounting base 2 has a receiving station, a pressing station, and a discharging station on the processing platform 1. The pressing station is located at the pressing assembly 4. The processing platform 1 is equipped with a base drive mechanism for driving the mounting base 2 to move between the receiving station, the pressing station, and the discharging station. In one embodiment, the base drive mechanism is a base drive cylinder. The cylinder body of the base drive cylinder is fixed on the processing platform 1, and the output rod of the base drive cylinder is connected to the mounting base 2, thereby enabling the mounting base 2 to move between the receiving station, the pressing station, and the discharging station.

[0080] Reference Figure 12 and Figure 14 As shown, the processing platform 1 is equipped with an end cap transfer mechanism 7 at the receiving station and the discharging station. The end cap transfer mechanism 7 is used to transfer the motor end cap 6 without O-rings to the mounting base 2, and to remove the motor end cap 6 with O-rings from the mounting base 2.

[0081] The end cap transfer mechanism 7 includes an end cap transfer frame 71, an end cap transfer horizontal cylinder 72 mounted on the end cap transfer frame 71, an end cap transfer vertical cylinder 73 mounted on the output rod of the end cap transfer horizontal cylinder 72, a transfer bracket 74 mounted on the output rod of the end cap transfer vertical cylinder 73, an end cap gripper cylinder 75 mounted on the transfer bracket 74, and an end cap clamping piece 76 mounted on the output end of the end cap gripper cylinder 75. The end cap clamping piece 76 is adapted to the center hole of the motor end cap 6. Two end cap clamping pieces 76 are provided. After the two end cap clamping pieces 76 are joined together, they can extend into the center hole of the motor end cap 6. Subsequently, the end cap gripper cylinder 75 moves the two end cap clamping pieces 76 outward, thereby achieving the clamping of the motor end cap 6 by the end cap clamping pieces 76.

[0082] It is worth noting that, in reference Figure 12 and Figure 13 As shown, an end cap storage rack 8 is also provided on one side of the processing platform 1, and the motor end caps 6 are stacked and stored in the end cap storage rack.

[0083] Under the action of the base drive mechanism, the mounting base 2 moves to the receiving station. The end cap transfer mechanism 7 transfers the motor end cap 6 in the end cap placement frame 8 to the mounting base 2. The base drive mechanism moves the mounting base 2 to the pressing station. After pressing the O-ring onto the mounting base 2, the base drive mechanism moves the mounting base 2 to the discharge station. The end cap transfer mechanism 7 removes the motor end cap 6 from the mounting base 2.

[0084] Example 3 Based on Example 2, referring to Figure 12 and Figure 15 As shown, a detection and screening component 9 is provided on one side of the material discharge station of the processing platform 1. The detection component 93 includes a detection platform 91, a detection conveyor belt 92, a detection component 93, a first material discharge conveyor belt 94, and a second material discharge conveyor belt 95.

[0085] The inspection conveyor belt 92 is set on the inspection platform 91. The end cover transfer mechanism 7 transfers the motor end cover 6 with the O-ring fitted to it to the inspection conveyor belt 92. The inspection conveyor belt 92 sends the motor end cover 6 into the inspection component 93 for inspection.

[0086] The detection component 93 includes a detection bracket 931 and several digital infrared distance sensors 932 mounted on the detection bracket 931. The digital infrared distance sensors 932 are arranged at four corners above the detection conveyor belt 92. When the detection conveyor belt 92 transports the motor end cover 6 to the detection component 93, the digital infrared distance sensors 932 will detect the O-rings on the motor end cover 6 to determine whether the O-rings are properly fitted.

[0087] The first discharge conveyor belt 94 has the same transmission direction as the detection conveyor belt 92, and the first discharge conveyor belt 94 is connected to the detection conveyor belt 92.

[0088] The transmission direction of the second discharge conveyor belt 95 is perpendicular to the transmission direction of the detection conveyor belt 92. The detection platform 91 is provided with a detection transfer mechanism 96 between the second discharge conveyor belt 95 and the detection conveyor belt 92. The structure of the detection transfer mechanism 96 is the same as that of the end cover transfer mechanism 7 mentioned above. The detection transfer mechanism 96 is used to transfer the motor end cover 6 from the detection conveyor belt 92 to the second discharge conveyor belt 95.

[0089] Therefore, when the digital infrared distance sensor 932 detects that the O-ring on the motor end cover 6 is properly fitted, and the motor end cover 6 is a qualified product, the detection and transfer mechanism 96 transfers the motor end cover 6 from the detection conveyor belt 92 to the second discharge conveyor belt 95. When the digital infrared distance sensor 932 detects that the O-ring on the motor end cover 6 is not properly fitted, and the motor end cover 6 is a defective product, the detection conveyor belt 92 transports the defective motor end cover 6 to the first discharge conveyor belt 94.

[0090] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A device for mounting a large O-ring on the end cover of a hub motor, characterized in that, It includes a processing platform (1), a mounting base (2), a sorting component (3), a pressing component (4), and a gripping component (5); The mounting base (2) is set on the processing platform (1). The mounting base (2) is used to place the power supply end cover (6). The sorting component (3) is set on one side of the processing platform (1). The sorting component (3) is used to sort out individual O-rings and lay them flat. The pressing assembly (4) is disposed on the processing platform (1) and located above the mounting base (2). The gripping assembly (5) is disposed on the processing platform (1) and located between the pressing assembly (4) and the sorting assembly (3). The gripping assembly (5) is used to grip the individual O-rings sorted by the sorting assembly (3) and move them to the pressing assembly (4). The pressing assembly (4) is used to press the O-rings onto the motor end cover (6) of the mounting base (2). The sorting assembly (3) includes a circulating conveyor (31), a plurality of sorting seats (32) spaced apart on the circulating conveyor (31), and a screening mechanism (33) disposed on one side of the circulating conveyor (31); The circulating conveyor (31) has a screening station and a gripping station. The circulating conveyor (31) is used to pass the sorting seat (32) through the screening station and the gripping station one by one. The screening mechanism (33) screens out a single O-ring at the screening station and lays it flat on the sorting seat (32) after shaping. The gripping component (5) grips the O-ring on the sorting seat (32) at the gripping station. The screening mechanism (33) includes a vibrating screening seat (331), a vibrating spring (332) disposed on the vibrating screening seat (331), and a screening support frame (333) disposed on the vibrating spring (332); A material crossbar (334) is obliquely installed on the screening support frame (333), and several O-rings are fitted on the material crossbar (334). A screening cylinder (335) is provided on the screening support frame (333), and a screening block (336) is connected to the screening cylinder (335). A screening groove (337) is formed between the screening block (336) and the end of the material crossbar (334). The material crossbar (334) is fixed with a shaping mold (338) at its end. The shaping mold (338) is set vertically and has a cone structure with a small upper end and a large lower end. When the sorting seat (32) passes through the screening station, the lower end of the shaping mold (338) is located directly above the sorting seat (32). The gripping assembly (5) includes a gripping support frame (51), a moving mechanism (52) disposed on the gripping support frame (51), and a gripping mechanism (53) disposed on the moving mechanism (52). The moving mechanism (52) is used to drive the gripping mechanism (53) to move between the sorting assembly (3) and the pressing assembly (4). The gripping mechanism (53) is used to open outward from the sorting assembly (3) to grip the O-ring and transfer it to the pressing assembly (4).

2. The device for mounting a large O-ring on the end cover of a hub motor according to claim 1, characterized in that, The moving mechanism (52) includes a transverse truss (521) disposed on the gripping support frame (51), a moving seat (522) slidably disposed on the transverse truss (521), and a vertical truss (523) slidably disposed on the moving seat (522). The gripping mechanism (53) is disposed on the vertical truss (523). The transverse truss (521) is provided with a transverse drive part (524) for driving the movable seat (522) to slide laterally, and the movable seat (522) is provided with a vertical drive part (525) for driving the vertical truss (523) to slide vertically.

3. The device for mounting a large O-ring on the end cover of a hub motor according to claim 1, characterized in that, The gripping mechanism (53) includes a gripping mounting plate (533) and a plurality of gripping parts arranged along the circumference of the gripping mounting plate (533); The gripping part includes a gripping mounting block (534) fixed to the lower surface of the gripping mounting disk (533). A claw (535) is hinged on the gripping mounting block (534). The outer surface of the claw (535) is an opening surface (5351). The opening surface (5351) is used to contact the inner wall surface of the O-ring. A torsion spring (536) is installed on the hinge shaft between the claw (535) and the gripping mounting block (534). The torsion spring (536) is used to provide a flipping force of the opening surface (5351) of the claw (535) towards the outer circumference of the gripping mounting disk (533). A gripping cylinder (537) is installed on the gripping mounting block (534), and a gripping top block (538) is installed on the output rod of the gripping cylinder (537). The gripping top block (538) is used to abut against the spreading surface (5351) of the claw (535) to drive the claw (535) to flip into a vertical state.

4. The device for mounting a large O-ring on the end cover of a hub motor according to claim 3, characterized in that, The gripping mechanism (53) further includes a gripping column (531) and a gripping rotary cylinder (532). The cylinder body of the gripping rotary cylinder (532) is mounted on the moving mechanism (52). The upper end of the gripping column (531) is mounted on the output end of the gripping rotary cylinder (532). The lower end of the gripping column (531) is hinged to the center position of the gripping mounting plate (533).

5. The device for mounting a large O-ring on the end cover of a hub motor according to claim 1, characterized in that, The pressing assembly (4) includes a pressing support frame (41) set on the processing platform (1) and a pressing support plate (42) vertically slidably set in the pressing support frame (41). A pressing rotary cylinder (43) is set on the pressing support plate (42), and a pressing template (44) is installed on the pressing rotary cylinder (43). Both surfaces of the pressing template (44) are provided with pressing molds (45). The pressing molds (45) are used to receive the O-rings transferred by the gripping assembly (5). The press-fit support frame (41) is provided with a press-fit drive mechanism (46) for driving the press-fit support frame (41) to move, and the press-fit mold (45) is used to contact the motor end cover (6) on the mounting base (2) to press the O-ring into the motor end cover (6).

6. The device for mounting a large O-ring on the end cover of a hub motor according to claim 5, characterized in that, The press-fit mold (45) includes a press-fit mounting base (451) and a press-fit mounting cavity (452) disposed in the press-fit mounting base (451). A press-fit mold base (453) is slidably mounted in the press-fit mounting cavity (452). A press-fit mold ring (454) for clamping O-rings is provided on the press-fit mold base (453). The press-fit mold ring (454) is used to mate with the mounting edge of the motor end cover (6). A press-fit spring (455) is provided in the press-fit mounting cavity (452).

7. The device for mounting a large O-ring on the end cover of a hub motor according to claim 1, characterized in that, The mounting base (2) is slidably disposed on the processing platform (1). The mounting base (2) has a receiving station, a pressing station and a discharging station on the processing platform (1). The pressing station is located at the pressing assembly (4). The processing platform (1) is provided with a base driving mechanism for driving the mounting base (2) to move between the receiving station, the pressing station and the discharging station. The processing platform (1) is equipped with an end cap transfer mechanism (7) at the receiving station and the discharging station.

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