Bearing end cover pressing equipment

Abstract

The invention discloses bearing end cover pressing equipment, and belongs to the field of bearing machining. Comprising a fixing table, a crimping unit is arranged on the fixing table, and the crimping unit comprises two sets of supporting plates fixed to the fixing table; the material taking device is arranged between the two groups of supporting plates; the pushing device is arranged on the pressing device and used for achieving synchronous linkage of the oil injection action and the material taking action; the cleaning assembly is arranged on the pushing device, and the cleaning assembly is used for achieving injection and automatic cleaning of the lubricating grease; and the linkage assembly is arranged on the fixing table and used for achieving synchronous linkage of the oil injection action and the material taking action. According to the bearing end cover press-fit equipment, through integration of multiple devices and assemblies, the procedures of grease injection, material taking and press-fit are achieved, exposure and contamination of lubricating grease are avoided, the production space is saved, procedure continuity is achieved, and the production efficiency and the assembly precision are improved.

Description

Technical Field

[0001] This invention relates to the field of bearing processing technology, and in particular to a bearing end cap pressing device. Background Technology

[0002] In the mass production of wheel hub bearings, the assembly of the sealing ring is a key process to ensure its sealing performance and lifespan, and grease must be injected into the sealing ring groove before assembly. Currently, the industry generally adopts a segmented operation mode: first, grease is injected using independent grease injection equipment (mostly fixed stations, with manual or simple tooling positioning the bearing, and pneumatic / electric grease injection nozzles), and then the bearing is transferred manually or by a robotic arm to a dedicated pressing equipment (powered by a cylinder / hydraulic cylinder, with a matching pressure head), and finally the sealing ring is pressed in. The two types of equipment operate independently, and the process is connected by transfer. However, this segmented production model has drawbacks in practical applications. First, when the wheel hub bearing is transported after grease injection, the grease in the sealing ring groove is exposed to the workshop environment, which easily attracts impurities such as dust and metal shavings. After subsequent pressing, these impurities are sealed inside, which damages the lubrication and sealing effect and aggravates bearing wear. Second, the independent grease injection and pressing equipment need to be arranged, debugged and operated separately, which not only occupies more production space but also increases equipment investment and maintenance costs.

[0003] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Summary of the Invention

[0004] This invention provides a bearing end cap pressing device to solve the problems of grease contamination during transfer after grease injection, high equipment footprint and cost, and low efficiency due to discontinuous processes in segmented production.

[0005] This invention adopts the following technical solution: a bearing end cap pressing device. It includes a pressing device comprising a fixed platform, on which a pressing unit for mounting a sealing ring onto a wheel hub bearing is disposed. The pressing unit includes two sets of support plates fixed to the fixed platform; a material handling device disposed between the two sets of support plates, used for automatically feeding and gripping the sealing ring; a pushing device disposed on the pressing device, used for synchronously linking the oil injection and material handling actions; a cleaning component disposed on the pushing device, used for injecting grease and automatically cleaning; and a linkage component disposed on the fixed platform, used for synchronously linking the oil injection and material handling actions.

[0006] Furthermore, a support unit is fixed on the fixed platform. The support unit includes a base fixed on the fixed platform, a hub bearing is supported on the base, the hub bearing has a material groove, a horizontally arranged mounting plate is fixed between the two sets of support plates, a cylinder is vertically arranged on the mounting plate, the telescopic end of the cylinder passes through the mounting plate and is fixed to a lifting plate, four sets of guide shafts are fixed on the lifting plate, the guide shafts are movably arranged through the mounting plate, and a pressure seat is embedded through the lifting plate.

[0007] Furthermore, the material handling device includes a feeding unit disposed between the two sets of support plates. The feeding unit includes a receiving platform fixed between the two sets of support plates. The upper surface of the receiving platform has an opening groove, and a placement platform is disposed in the opening groove. A receiving ring is disposed on the placement platform. A horizontally disposed cylinder two is fixed on the bottom surface of the receiving platform. The output end of cylinder two is connected to one side of the placement platform through a connecting plate. A long groove for the connecting plate to slide horizontally is opened on the receiving platform. The center of the receiving ring has an inner groove, and a convex ring is fixed in the inner groove. The convex ring and the inner groove form an annular groove, which is a temporary storage area for the sealing ring. Four sets of symmetrically disposed notched grooves are connected to the inner groove.

[0008] Furthermore, the bottom surface of the pressure seat is provided with a material-grabbing unit, which moves synchronously with the pressure seat. The material-grabbing unit includes a receiving platform fixed to the bottom surface of the pressure seat. The lower surface of the receiving platform extends downward with an annular boss. The bottom surface of the annular boss is fixed with four sets of symmetrically arranged guide rods. A spring is sleeved on the guide rod. One end of the spring is connected to the bottom surface of the annular boss. The other ends of the four sets of springs are connected to a gripper. The gripper has a through hole that matches the diameter of the guide rod. A portion of the guide rod extends into the through hole. The bottom surface of the gripper is integrally provided with four sets of protrusions suitable for insertion into the notch. Ball screws are connected to the inner wall side of the protrusions. The bottom surface of the protrusions has an annular receiving groove. The receiving groove and the four sets of ball screws together form the space for gripping the sealing ring.

[0009] Furthermore, the pushing device includes a support rod fixed on a fixed platform, a linkage rod vertically movably passing through the horizontal end of the support rod, a horizontally arranged connecting frame fixed at the top of the linkage rod, the connecting frame being connected to the side of the lifting plate, an inclined U-shaped component fixed at the bottom of the linkage rod, a concave guide frame fixed on the side of the support rod, one end of the guide frame having a protruding component, an extension rod horizontally movably passing through one end of the guide frame, a connecting seat fixed at one end of the extension rod, and a pulley slidably disposed within the U-shaped component fixed on the side of the connecting seat.

[0010] Furthermore, the cleaning assembly includes an oil injection unit located at the other end of the extension rod. The oil injection unit includes a bottom ring seat fixed to the other end of the extension rod. The bottom surface of the bottom ring seat has an annular step. A movable ring is connected to the inner wall of the bottom ring seat by a torsion spring. The torsion spring provides torque for the reset of the movable ring. An oil reservoir is fixed inside the movable ring. The bottom of the oil reservoir has a lap plate. The lap plate partially overlaps the annular step. Two sets of symmetrically arranged oil nozzles are connected to the bottom surface of the lap plate. A connecting pipe is connected to the oil reservoir and is connected to an external oil supply device. A guide ring is sleeved on the oil reservoir. The two sides of the guide ring are fixed to the bottom ring seat by right-angle brackets. An annular protrusion extends upward integrally on the guide ring. A second spring is connected between the bottom surface of the guide ring and the upper surface of the lap plate. The second spring is coaxially sleeved on the oil reservoir.

[0011] Furthermore, a pressing component is fixed to the surface of the movable ring, and two sets of symmetrically arranged positioning components are integrally fixed on the bottom ring seat. The pressing component initially contacts the side of one set of positioning components. A second switch for controlling the fuel injector to close is provided on the side of the positioning component, and a first switch for controlling the fuel injector to open is provided on the side of the other set of positioning components. An arc groove is formed along the angular direction on the inner wall side of the annular protrusion, and a spherical end is integrally formed on the surface of the oil reservoir. The spherical end is defaulted to the high point of the arc groove.

[0012] Furthermore, a gear is sleeved on the movable ring near the bottom surface. The linkage assembly includes two sets of pillars fixed on the fixed platform. An open box is connected between the two sets of pillars. A rack suitable for meshing with the gear is slidably arranged at one end of the open box. The rack does not mesh with the gear. A part of the rack extends into the open box and is connected to the inner wall of the open box by a spring. A notch is opened on the side of the bottom ring seat. Two sets of sliding grooves are opened on the open box. Electromagnets two and three are fixed at both ends of the inner wall of the sliding grooves, respectively. Electromagnet one is fixed on the rack. Electromagnet one is always energized.

[0013] Furthermore, a sleeve is fixedly connected to one end of the extension rod extending from the protruding member. Two sets of springs are fixed on the sleeve, and one end of each set of springs is connected to a holding member. The holding member is coaxially sleeved on the extension rod. A switch is fixed to the side of the protruding member. Two sets of mounting blocks are fixed to the bottom surface of the annular step. A cleaning ring 1 and a cleaning ring 2 are connected between the two sets of mounting blocks. The sides of the cleaning ring 1 and the cleaning ring 2 that are close to each other are equipped with wiping sponges. The oil nozzle is suitable for extending into the annular gap between the cleaning ring 1 and the cleaning ring 2.

[0014] Furthermore, when switch three is initially pressed by the holding member, it controls electromagnet three to be energized and electromagnet two to be de-energized; when switch two is initially pressed by the pressing member, it controls the fuel injector to be closed; switch one is used to control the fuel injector to be open, electromagnet two to be energized, and electromagnet three to be de-energized.

[0015] The above-mentioned at least one technical solution adopted in this invention can achieve the following beneficial effects: A bearing end cap pressing device, through its integrated design of a pressing device, a material handling device, a pushing device, a cleaning component, and a linkage component, effectively solves the problems of easy grease contamination, high equipment cost, and low production efficiency in traditional segmented production. It offers significant advantages: the pressing device and the material handling device work together to automatically feed, grip, and press the sealing rings; the pushing device, through a linkage structure, synchronizes the oil injection and material handling actions, preventing grease exposure and contamination during transport after grease injection in wheel hub bearings, ensuring the cleanliness of the grease in the sealing ring groove, guaranteeing sealing performance and lubrication effect, and reducing bearing friction and wear; the cleaning component simultaneously achieves precise grease injection and automatic cleaning of the oil nozzle, further improving lubrication reliability. The entire device integrates grease injection, material handling, and pressing processes into one unit, eliminating the need for multiple separate machines, saving workshop production space, and reducing equipment investment and maintenance costs; at the same time, it eliminates the transport link, enabling continuous operation of key processes, improving overall production efficiency, ensuring product assembly accuracy and consistency, and adapting to the needs of large-scale production. Attached Figure Description

[0016] The accompanying drawings, which are provided to further illustrate the invention and constitute a part of this invention, are illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention.

[0017] In the attached diagram: Figure 1 This is an overall schematic diagram of a bearing end cap pressing device according to this application; Figure 2 for Figure 1 A partial structural diagram; Figure 3 for Figure 2 A partial structural diagram; Figure 4 for Figure 3 Enlarged view of point B; Figure 5 for Figure 1 Schematic diagram of the medium-pressure combining device; Figure 6 for Figure 5 Enlarged view of point A; Figure 7 for Figure 1 A partial structural diagram; Figure 8 for Figure 7 Enlarged view of point C; Figure 9 for Figure 7 A partial structural diagram; Figure 10 for Figure 9Enlarged view of point D; Figure 11 for Figure 10 Enlarged view of point E; Figure label: 1. Pressing device; 11. Fixed platform; 12. Support plate; 13. Mounting plate; 14. Cylinder 1; 15. Lifting plate; 16. Guide shaft; 161. Pressing seat; 17. Base; 18. Wheel hub bearing; 19. Material trough; 2. Material handling device; 21. Receiving platform; 22. Annular boss; 23. Guide rod; 24. Spring 1; 25. Gripper; 26. Receiving groove; 27. Protrusion; 28. Ball screw; 29. ​​Receiving platform; 210. Opening groove; 211. Cylinder 2; 212. Placement platform; 213. Receiving ring; 214. Convex ring; 215. Annular groove; 216. Notch groove; 3. Pushing device; 31. Support rod; 32. Connecting frame; 321. Linkage rod; 33. Retractable part; 34. Guide frame; 341. Protruding part; 35. Extending rod 36. Connecting seat; 37. Pulley; 4. Cleaning assembly; 41. Bottom ring seat; 401. Notch groove; 42. Annular step; 43. Moving ring; 44. Gear; 45. Torsion spring; 46. Positioning component; 461. Switch one; 47. Pressing component; 48. Switch two; 49. Guide ring; 491. Annular protrusion; 492. Arc groove; 410. Right angle bracket; 411. Oil reservoir; 412. Connecting pipe; 413. Overlapping plate; 414. Spring two; 5. Linkage assembly; 51. Mounting block; 52. Cleaning ring one; 53. Cleaning ring two; 54. Kit; 55. Spring three; 56. Holding component; 57. Switch three; 58. Support column; 59. Opening box; 591. Sliding groove; 510. Rack; 511. Electromagnet one; 512. Electromagnet two. Detailed Implementation

[0018] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0019] The technical solutions provided by the various embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0020] Reference Figures 1-5 As shown, the present invention provides a bearing end cap pressing device, including a pressing device 1, which is used to assemble a sealing ring onto a wheel hub bearing. The pressing device 1 includes a fixed platform 11, which can be installed at a designated position according to actual needs. A support unit is fixed on the fixed platform 11. The support unit includes a base 17 fixed on the fixed platform 11 and a wheel hub bearing 18 that can be supported on the base 17. The wheel hub bearing 18 has a material groove 19, which is suitable for assembling the sealing ring and serves as the mounting carrier for the sealing ring. A pressing unit is provided on the fixed platform 11. The pressing unit includes two sets of support plates 12 fixed on the fixed platform 11 and located on one side of the base 17. A horizontally arranged mounting plate 13 is fixed between the two sets of support plates 12. A cylinder 14 is vertically arranged on the mounting plate 13. The telescopic end of the cylinder 14 passes through the mounting plate 13 and is fixed to a lifting plate 15. The cylinder 14 provides power for the lifting of the lifting plate 15. Four sets of guide shafts 16 are fixed on the lifting plate 15. The guide shafts 16 are movably arranged through the mounting plate 13. A pressing seat 161 is embedded in the lifting plate 15. In actual production, the worker places the wheel hub bearing 18 in the material groove 19 of the turntable. The cylinder 14 drives the lifting plate 15 to descend, and the pressing seat 161 presses down accordingly, pressing the sealing ring into the material groove 19 of the wheel hub bearing 18.

[0021] like Figures 3-6 As shown, a material handling device 2 is provided between the two sets of support plates 12, which is used to automatically feed and grasp the sealing rings. The material handling device 2 includes a feeding unit provided between the two sets of support plates 12. The feeding unit includes a receiving platform 29 fixed between the two sets of support plates 12. The upper surface of the receiving platform 29 has an opening groove 210. A placement platform 212 is provided in the opening groove 210. A receiving ring 213 is provided on the placement platform 212. A horizontally arranged cylinder 211 is fixed on the bottom surface of the receiving platform 29. The output end is connected to one side of the placement platform 212 via a connecting plate. At the same time, a long groove (not shown in the figure) is provided on the receiving platform 29 for the connecting plate to slide horizontally, providing a horizontal driving force for the receiving ring 213, which can push the receiving ring 213 carrying the sealing ring to the material picking station. The receiving ring 213 has an inner groove in the center, and a protruding ring 214 is fixed in the inner groove. The protruding ring 214 and the inner groove form an annular groove 215, which is a temporary storage area for the sealing ring. At the same time, four sets of symmetrically arranged notch grooves 216 are connected to the inner groove. It should be noted that in actual use, the placement platform 212 can drive the receiving ring 213 to fold into the opening groove 210. When assembling, firstly, the second cylinder 211 is activated to push the placement platform 212 out of the opening groove 210 so that the placement platform 212 is directly below the holding seat 161, which facilitates the subsequent material picking operation. Then, the first cylinder 14 is activated to drive the lifting plate 15 to move downward. At the same time, after the sealing ring in the annular groove 215 has been picked up, the sealing ring can be replenished into the annular groove 215 through the external feeding equipment to achieve continuous material supply. A material-picking unit is provided on the bottom surface of the pressure seat 161. The material-picking unit moves synchronously with the pressure seat 161. The material-picking unit includes a receiving platform 21 fixed on the bottom surface of the pressure seat 161. An annular boss 22 extends downward from the lower surface of the receiving platform 21. Four sets of symmetrically arranged guide rods 23 are fixed on the bottom surface of the annular boss 22. A spring 24 is sleeved on the guide rod 23. One end of the spring 24 is connected to the bottom surface of the annular boss 22. The other ends of the four sets of springs 24 are connected to a gripper 25. The gripper 25 has a through hole (not shown in the figure) that matches the diameter of the guide rod 23. A part of the guide rod 23 extends into the through hole. The elastic deformation of the spring 24 can buffer the impact force during material picking and ensure that the gripper 25 can accurately reset after material picking. The through hole on the gripper 25 is fitted with the guide rod 23 with clearance, so that the gripper 25 can be raised and lowered smoothly along the guide rod 23. The bottom surface of the gripper 25 is integrally provided with four sets of protrusions 27 suitable for insertion into the notch 216. The inner side of the protrusion 27 is connected to the ball screw 28, which has an elastic tightening function. At the same time, the bottom surface of the protrusion 27 has an annular receiving groove 26. The receiving groove 26 and the four sets of ball screws 28 together form the space for gripping the sealing ring. In accordance with actual production conditions, after cylinder 211 pushes the placement table 212 to the material picking position, cylinder 14 drives the holding seat 161 to descend, the protrusion 27 inserts into the notch 216, and the ball screw 28 automatically clamps the sealing ring and causes it to fall into the receiving groove 26; then the holding seat 161 rises and moves with the turntable to above the wheel hub bearing 18, completing the automated connection between material picking and transfer, improving the assembly efficiency and accuracy of the bearing end cover, and effectively avoiding the errors and inefficiencies of manual handling of the sealing ring.

[0022] Before starting the equipment, the workers place the wheel hub bearing 18 to be assembled in the bearing position of the base 17, ensuring that the material groove 19 of the wheel hub bearing 18 is aligned directly below the pressure seat 161. At the same time, the external feeding equipment has already supplied the sealing ring to the annular groove 215 of the receiving ring 213. The placement platform 212 drives the receiving ring 213 to fold into the opening groove 210 of the receiving platform 29, completing the initial deployment. After the assembly begins, the second cylinder 211 of the feeding unit is started first. Its output end drives the placement platform 212 to slide horizontally along the long groove of the receiving platform 29 through the connecting plate, pushing it out from the opening groove 210 to directly below the pressure seat 161, providing precise positioning for the material picking action. Then, cylinder 14 of the pressing unit is activated. Cylinder 14 drives the lifting plate 15 to descend smoothly along the four sets of guide shafts 16. The material picking unit, which moves synchronously with the pressing seat 161, approaches the receiving ring 213. The four sets of protrusions 27 on the bottom of the gripper 25 are precisely inserted into the notch 216 of the receiving ring 213. The ball screws 28 on the inner wall of the protrusions 27 tighten the sealing ring in the annular groove 215 under the action of elasticity, so that it falls stably into the receiving groove 26, completing the automatic gripping of the sealing ring.

[0023] After material retrieval is completed, cylinder 14 drives the lifting plate 15 to rise, and the holding seat 161 drives the material retrieval unit with the sealing ring to rise synchronously. At the same time, cylinder 211 resets, causing the placement platform 212 and the receiving ring 213 to fold back into the opening slot 210. The external feeding equipment simultaneously replenishes material into the annular groove 215 to prepare for the next material retrieval. Then, cylinder 14 drives the lifting plate 15 to descend again, and the holding seat 161, carrying the sealing ring, approaches the material groove 19 of the wheel hub bearing 18. At this time, the clamp 25 compresses the spring 24 upward along the guide rod 23 under the action of the pressing pressure, and the ball screw 28 releases the tightness of the sealing ring. Under the action of the downward pressure of the holding seat 161, the sealing ring is precisely pressed into the material groove 19, completing the pressing and assembly of the bearing end cover. The entire process achieves fully automated connection of sealing ring feeding, gripping, transfer and pressing, without the need for manual intervention to pick up and put down materials. This not only improves assembly efficiency, but also avoids positioning errors caused by manual operation, and ensures the consistency of product assembly accuracy.

[0024] like Figures 7-10 As shown, a pushing device 3 is provided on one side of the base 17 to realize the synchronous linkage of the oil injection action and the material picking action. The pushing device 3 includes a support rod 31 fixed on the fixed platform 11 and located on one side of the base 17. The support rod 31 is L-shaped, and a linkage rod 321 is vertically movably installed through the horizontal end of the support rod 31. A horizontally arranged connecting frame 32 is fixed to the top of the linkage rod 321. The connecting frame 32 is connected and fixed to the side of the lifting plate 15 by fasteners and can rise and fall synchronously with the lifting plate 15. A connecting frame 32 is fixed to the bottom end of the linkage rod 321. The inclined U-shaped component 33 has a concave guide frame 34 fixed on the side of the support rod 31. One end of the guide frame 34 has a protruding component 341, and a horizontally movable extension rod 35 passes through one end of the guide frame 34. The guide frame 34 constrains the horizontal sliding of the extension rod 35. One end of the extension rod 35 is fixed with a connecting seat 36. A pulley 37 is slidably disposed in the U-shaped component 33 on the side of the connecting seat 36. The sliding of the pulley 37 in the U-shaped component 33 can convert the vertical movement of the lifting plate 15 into the horizontal movement of the extension rod 35. A cleaning component 4 is provided at the other end of the extension rod 35 for precise grease injection and automatic cleaning. The cleaning component 4 includes an oil injection unit at the other end of the extension rod 35. The oil injection unit includes a bottom ring seat 41 fixed to the other end of the extension rod 35. The bottom surface of the bottom ring seat 41 has an annular step 42. The inner wall of the bottom ring seat 41 is connected to a movable ring 43 by a torsion spring 45. The torsion spring 45 provides torque for the reset of the movable ring 43. At the same time, a hollow columnar oil reservoir 411 is fixed inside the movable ring 43. The oil reservoir 411 is a grease storage and delivery component. The bottom of the oil reservoir 411 is integrally connected to an overlapping plate 413, which partially overlaps the annular step. On step 42, the bottom surface of the overlapping plate 413 is connected to two sets of symmetrically arranged oil nozzles (not shown in the figure) for spraying grease into the grease tank 19. A connecting pipe 412 is connected to the oil reservoir 411. The connecting pipe 412 is suitable for connecting to an external oil supply device to realize continuous grease replenishment. At the same time, a guide ring 49 is sleeved on the oil reservoir 411. The two sides of the guide ring 49 are fixed to the bottom ring seat 41 by right angle brackets 410. An annular protrusion 491 extends upward integrally on the guide ring 49. A spring 414 is connected between the bottom surface of the guide ring 49 and the upper surface of the overlapping plate 413. The spring 414 is coaxially sleeved on the oil reservoir 411 to provide elastic support for the reset of the oil reservoir 411. Meanwhile, a pressing element 47 is fixed on the surface of the movable ring 43, and two sets of symmetrically arranged positioning elements 46 are integrally fixed on the bottom ring seat 41. The pressing element 47 initially contacts the side of one set of positioning elements 46, and a second switch 48 for controlling the closing of the fuel injector is provided on the side of the positioning element 46. A first switch 461 for controlling the opening of the fuel injector is provided on the side of the other set of positioning elements 46. An arc groove 492 is opened along the 180-degree direction on the inner wall side of the annular protrusion 491. At the same time, a spherical end (not shown in the figure) is integrally provided on the surface of the oil reservoir 411. The spherical end is defaulted to the high point of the arc groove 492, and the movable ring 43 is adapted to rotate 180 degrees to generate torque on the torsion spring 45. Simultaneously, it can drive the oil reservoir 411 to rotate and move downward along the arc direction of the arc groove 492 through the spherical end, so as to drive the two sets of fuel injectors to extend into the material tank 19. To achieve synchronized operation of oil injection and material removal, such as Figures 7-11As shown, a gear 44 is fixedly sleeved on the movable ring 43 near the bottom surface. A linkage assembly 5 is also provided on the fixed platform 11. This linkage assembly 5 includes two sets of support columns 58 fixed on the fixed platform 11, with an open box 59 connected between the two sets of support columns 58. A rack 510, suitable for meshing with the gear 44, is slidably disposed at one end of the open box 59. It should be noted that initially, the rack 510 does not mesh with the gear 44; a portion of the rack 510 extends into the open box 59 and is connected to the inner wall of the open box 59 by a spring. Meanwhile, a notch 401 for gear 44 to mesh with rack 510 is provided on the side of bottom ring seat 41, and two sets of sliding grooves 591 are connected on the open box 59. Electromagnets 2 and 3 are fixed at both ends of the inner wall of the sliding groove 591, and electromagnet 1 is fixed on rack 510. Electromagnet 1 511 is always energized. Switch 2 48 controls electromagnet 3 to be energized. That is, rack 510 is initially attracted by electromagnets 1 and 3 and meshes with gear 44. A kit 54 is fixedly sleeved at one end of the extension rod 35 that extends out of the protrusion 341. Two sets of springs 55 are fixed on the side of the kit 54 near the protrusion 341. One end of the two sets of springs 55 is connected to a holding member 56. The holding member 56 is coaxially sleeved on the extension rod 35. A switch 57 is fixed on the side of the protrusion 341 near the holding member 56. Two sets of mounting blocks 51 are fixed on the bottom surface of the annular step 42. A cleaning ring 52 and a cleaning ring 53 are connected between the two sets of mounting blocks 51. The sides of the cleaning rings 52 and 53 that are close to each other are equipped with wiping sponges. The nozzle is adapted to extend into the annular gap between the cleaning rings 52 and 53 to wipe off excess grease on the surface of the nozzle. It should be noted that when switch 3 57 is initially pressed by the holding member 56, it controls electromagnet 3 to be energized and electromagnet 2 512 to be de-energized; when switch 2 48 is initially pressed by the pressing member 47, it controls the fuel injector to be closed; switch 1 461 is used to control the fuel injector to be open, and electromagnet 2 512 to be energized and electromagnet 3 to be de-energized. In actual use, after cylinder 211 pushes the placement platform 212 to the material picking position, cylinder 14 drives the lifting plate 15 to descend, causing the gripper 25 to move down to pick up the material. At the same time, the linkage rod 321 descends synchronously with the lifting plate 15, causing the return piece 33 to move down. Through the pulley 37, the extension rod 35 moves horizontally, thereby bringing the bottom ring seat 41 closer to the hub bearing 18. At this time, the gear 44 on the movable ring 43 meshes with the rack 510, the movable ring 43 rotates and generates torque on the torsion spring 45, synchronously driving the oil reservoir 411 to rotate and move down along the arcuate groove 492 through the spherical end. When cylinder 14 descends to its position, the movable ring 43 rotates 180 degrees, causing the two sets of nozzles to extend into the material trough 19. At the same time, the pressing component 47 presses switch 461 to control the oil injector to open, the electromagnet 2 512 to be energized, and the electromagnet 3 to be de-energized. The rack 510 is magnetically attracted to the electromagnet 2 512 through electromagnet 1 511 and no longer meshes with the gear 44. Subsequently, the movable ring 43 resets under the torque of the torsion spring 45, causing the two sets of fuel injectors to rotate 180 degrees in opposite directions and gradually move upward, injecting grease into the material tank 19. During the upward movement, the wiping sponges on the cleaning ring 52 and the cleaning ring 53 simultaneously wipe away excess grease adhering to the surface of the fuel injectors. When the movable ring 43 resets and causes the pressing element 47 to press the switch 48 again, the fuel injectors close. Afterward, the cylinder 14 drives the gripper 25 to complete the material removal and reset, simultaneously driving the bottom ring seat 41 to reset, until the holding element 56 presses the switch 57, so that the electromagnet 3 is energized and the electromagnet 2 512 is de-energized. The rack 510 is magnetically connected to the electromagnet 3 through the electromagnet 1 511, resetting to the initial state, completing one cycle of oil injection and material removal.

[0025] Working principle: The operator places the wheel hub bearing 18 to be assembled in the designated bearing position on the base 17, ensuring that the material groove 19 of the wheel hub bearing 18 is accurately aligned with the pressure seat 161 directly below. At the same time, the external feeding device replenishes the sealing ring to the annular groove 215 of the receiving ring 213 in advance. The placement platform 212 drives the receiving ring 213 to fold into the opening groove 210 of the receiving platform 29, completing the preparation work before the equipment starts. When the assembly begins, the cylinder 211 of the feeding unit is started. The output end drives the placement platform 212 to slide horizontally along the long groove of the receiving platform 29 through the connecting plate, pushing the placement platform 212 from the opening groove 210 to the direct below the pressure seat 161, realizing the precise positioning of the material picking position.

[0026] Subsequently, the cylinder 14 of the pressing unit drives the lifting plate 15 to descend smoothly along the guide shaft 16, and the material-grabbing unit, which moves synchronously with the pressing seat 161, approaches the receiving ring 213. The protrusion 27 on the bottom surface of the gripper 25 is precisely inserted into the notch 216 of the receiving ring 213, and the ball screw 28 elastically tightens the sealing ring, causing it to fall into the receiving groove 26, completing the automatic gripping of the sealing ring.

[0027] After material handling is completed, cylinder 14 drives the lifting plate 15 to rise, and the holding seat 161 drives the material handling unit that grips the sealing ring to rise. Cylinder 211 resets, and the placement platform 212 and the receiving ring 213 are retracted back into the opening slot 210. The external feeding equipment replenishes material synchronously. Next, cylinder 14 drives the lifting plate 15 to descend again, and the holding seat 161, carrying the sealing ring, moves closer to the material groove 19 of the wheel hub bearing 18. Under the pressing pressure, the gripper 25 compresses the spring 24 along the guide rod 23, and the ball screw 28 releases the tightness of the sealing ring. Under the action of downward pressure, the sealing ring is precisely pressed into the material groove 19, completing the pressing and assembly of the bearing end cover. This realizes a fully automated process for the sealing ring from feeding, gripping, transfer to pressing, improving assembly efficiency and accuracy.

[0028] During the material handling and pressing process, the pushing device 3 operates synchronously. When cylinder 14 drives the lifting plate 15 to descend, the linkage rod 321 descends synchronously with the lifting plate 15, the return member 33 moves down, and drives the extension rod 35 to move horizontally through the pulley 37, so that the bottom ring seat 41 is close to the wheel hub bearing 18. At this time, the gear 44 on the movable ring 43 meshes with the rack 510, the movable ring 43 rotates and generates torque on the torsion spring 45, driving the oil reservoir 411 to rotate and move down along the arc groove 492 through the spherical end. When cylinder 14 descends to the position, the movable ring 43 rotates 180 degrees, the oil nozzle extends into the material trough 19, the pressing member 47 presses the switch 461, controlling the oil nozzle to open, the electromagnet 512 to be energized, the electromagnet 3 to be de-energized, and the rack 510 to disengage from the gear 44.

[0029] Subsequently, the movable ring 43 resets under the torque of the torsion spring 45, causing the fuel injector to rotate 180 degrees in the opposite direction and move upward, injecting grease into the grease tank 19. During the upward movement, the wiping sponges on the first cleaning ring 52 and the second cleaning ring 53 wipe away excess grease from the surface of the fuel injector. When the movable ring 43 resets, it causes the pressing element 47 to press the second switch 48 again, and the fuel injector closes.

[0030] Cylinder 14 drives gripper 25 to complete material removal and reset, simultaneously driving bottom ring seat 41 to reset. Pressing member 56 presses switch 3 57, energizing electromagnet 3 and de-energizing electromagnet 2 512. Rack 510 resets to its initial state, completing one cycle of oil injection and material removal, realizing the synchronous linkage of oil injection and material removal actions and automatic cleaning of the oil nozzle.

[0031] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A bearing end cap pressing device, characterized in that: The device includes a pressing device (1), which includes a fixed platform (11) and a pressing unit for mounting the sealing ring onto the wheel hub bearing. The pressing unit includes two sets of support plates (12) fixed on the fixed platform (11); a material picking device (2) which is set between the two sets of support plates (12) and is used to automatically feed and pick up the sealing ring; a pushing device (3) which is set on the pressing device (1) and is used to realize the synchronous linkage of the oil injection action and the material picking action; a cleaning component (4) which is set on the pushing device (3) and is used to realize the injection of grease and automatic cleaning; and a linkage component (5) which is set on the fixed platform (11) and is used to realize the synchronous linkage of the oil injection action and the material picking action.

2. The bearing end cap pressing device according to claim 1, characterized in that: A support unit is fixed on the fixed platform (11). The support unit includes a base (17) fixed on the fixed platform (11). The base (17) carries a hub bearing. The hub bearing has a material groove (19). An mounting plate (13) is fixed between two sets of support plates (12). A cylinder (14) is provided on the mounting plate (13). The telescopic end of the cylinder (14) passes through the mounting plate (13) and is fixed with a lifting plate (15). A pressure seat (161) is embedded through the lifting plate (15).

3. The bearing end cap pressing device according to claim 2, characterized in that: The feeding device (2) includes a feeding unit set between two sets of support plates (12). The feeding unit includes a receiving platform (29) fixed between the two sets of support plates (12). The upper surface of the receiving platform (29) has an opening groove (210). A placement platform (212) is set in the opening groove (210). A receiving ring (213) is set on the placement platform (212). A cylinder two (211) is fixed on the bottom surface of the receiving platform (29). The output end of the cylinder two (211) is connected to one side of the placement platform (212) through a connecting plate. A long groove is opened on the receiving platform (29). The center of the receiving ring (213) has an inner groove. A convex ring (214) is fixed in the inner groove. An annular groove (215) is formed between the convex ring (214) and the inner groove as a temporary storage area for the sealing ring. Four sets of notched grooves (216) are connected on the inner groove.

4. The bearing end cap pressing device according to claim 2, characterized in that: The bottom surface of the pressure seat (161) is provided with a material picking unit. The material picking unit includes a receiving platform (21) fixed to the bottom surface of the pressure seat (161). An annular boss (22) extends from the lower surface of the receiving platform (21). A guide rod (23) is fixed to the bottom surface of the annular boss (22). A spring (24) is sleeved on the guide rod (23). One end of the spring (24) is connected to the bottom surface of the annular boss (22). The other ends of the four sets of springs (24) are connected together. A gripper (25) is connected to the guide rod (23). The gripper (25) has a through hole that matches the diameter of the guide rod (23). A portion of the guide rod (23) extends into the through hole. A protrusion (27) is provided on the bottom surface of the gripper (25). A ball screw (28) is connected to the inner side of the protrusion (27). The bottom surface of the protrusion (27) has an annular receiving groove (26). The receiving groove (26) and the four sets of ball screws (28) together form the space for gripping the sealing ring.

5. The bearing end cap pressing device according to claim 4, characterized in that: The pushing device (3) includes a support rod (31) fixed on a fixed platform (11), a linkage rod (321) movably passing through the support rod (31), a horizontally arranged connecting frame (32) fixed at the top of the linkage rod (321), the connecting frame (32) being connected to the side of the lifting plate (15), an inclined U-shaped piece (33) fixed at the bottom of the linkage rod (321), a guide frame (34) fixed on the side of the support rod (31), a protruding piece (341) at one end of the guide frame (34), an extension rod (35) movably passing through one end of the guide frame (34), a connecting seat (36) fixed at one end of the extension rod (35), and a pulley (37) fixed on the side of the connecting seat (36).

6. The bearing end cap pressing device according to claim 5, characterized in that: The cleaning assembly (4) includes an oil injection unit disposed at the other end of the extension rod (35). The oil injection unit includes a bottom ring seat (41) fixed to the other end of the extension rod (35). The bottom surface of the bottom ring seat (41) has an annular step (42). A movable ring (43) is connected to the inner wall of the bottom ring seat (41) by a torsion spring (45). The torsion spring (45) provides torque for the reset of the movable ring (43). An oil reservoir (411) is fixed inside the movable ring (43). The bottom has a connecting plate (413), and two sets of fuel injectors are connected to the bottom surface of the connecting plate (413). A connecting pipe (412) is connected to the oil reservoir (411). A guide ring (49) is sleeved on the oil reservoir (411). The two sides of the guide ring (49) are fixed to the bottom ring seat (41) by right angle brackets (410). An annular protrusion (491) extends from the guide ring (49). A spring (414) is connected between the bottom surface of the guide ring (49) and the upper surface of the connecting plate (413).

7. The bearing end cap pressing device according to claim 6, characterized in that: The surface of the movable ring (43) is fixed with a pressing member (47), and two sets of positioning members (46) are fixed on the bottom ring seat (41). The pressing member (47) initially contacts the side of one set of positioning members (46). A second switch (48) is provided on the side of the positioning member (46), and a first switch (461) is provided on the side of the other set of positioning members (46). An arc groove (492) is opened on the inner wall side of the annular protrusion (491) along the (180) degree direction. The surface of the oil storage member (411) is provided with a spherical end that is defaulted to the high point of the arc groove (492).

8. The bearing end cap pressing device according to claim 7, characterized in that: A gear (44) is sleeved on the movable ring (43) near the bottom surface. The linkage component (5) includes two sets of support columns (58) fixed on the fixed platform (11). An open box (59) is connected between the two sets of support columns (58). A rack (510) is slidably arranged on the open box (59). The rack (510) does not mesh with the gear (44). A part of the rack (510) extends into the open box (59) and is connected to the inner wall of the open box (59) by a spring. A notch (401) is opened on the side of the bottom ring seat (41). Two sets of sliding grooves (591) are connected on the open box (59). Electromagnets 2 (512) and 3 are fixed at both ends of the inner wall of the sliding groove (591). Electromagnet 1 (511) is fixed on the rack (510). Electromagnet 1 (511) is always energized.

9. A bearing end cap pressing device according to claim 8, characterized in that: The extension rod (35) extends out of one end of the protrusion (341) and is fixedly sleeved with a kit (54). Two sets of springs (55) are fixed on the kit (54). One end of the two sets of springs (55) is connected to a holding member (56). The holding member (56) is coaxially sleeved on the extension rod (35). A switch (57) is fixed on the side of the protrusion (341). Two sets of mounting blocks (51) are fixed on the bottom surface of the annular step (42). A cleaning ring (52) and a cleaning ring (53) are connected between the two sets of mounting blocks (51). The sides of the cleaning ring (52) and the cleaning ring (53) that are close to each other are covered with wiping sponges.

10. A bearing end cap pressing device according to claim 9, characterized in that: The third switch (57) is initially pressed by the holding member (56), controlling the third electromagnet to be energized and the second electromagnet (512) to be de-energized; the second switch (48) is initially pressed by the pressing member (47), controlling the fuel injector to be closed; the first switch (461) is used to control the fuel injector to be open, the second electromagnet (512) to be energized and the third electromagnet to be de-energized.

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