Grinding device and grinding method for automobile hub bearing

Abstract

The invention relates to the technical field of bearing polishing, and particularly discloses an automobile hub bearing polishing device and a polishing method.The automobile hub bearing polishing device comprises a base and further comprises a frame, and the interior of the frame is slidably connected with a connecting frame and a first limiting piece; the bottom of the connecting frame is provided with sliding wheels, the interior of the containing opening is slidably connected with a mounting frame, the bottom of the mounting frame is provided with a polishing piece, the mounting frame has two sliding states, and the two sliding states are left sliding and right sliding respectively. When the polishing piece is used, the corresponding first limiting piece can be pushed to rise, limiting on the connecting frame is relieved, the connecting frame after limiting is relieved slides in the frame through the sliding wheels and slides to the next first limiting piece, and therefore the polishing piece is driven to gradually slide to the outer ring face of the inner ring to polish the protrusion. The automobile hub bearing grinding device and grinding method have the effect of prolonging the service life of a polished part.

Description

Technical Field

[0001] This invention relates to the field of bearing grinding technology, specifically to a grinding device and grinding method for automotive wheel hub bearings. Background Technology

[0002] The wheel hub is a cylindrical metal component inside a car tire, centered on an axle, used to support the tire. Simply put, it's the part of the wheel where the axle is mounted. It's a crucial component connecting the brake drum (brake disc), wheel disc, and half-shaft. Among these components, the wheel hub bearing is used at the car axle to bear weight and provide precise guidance for the rotation of the wheel hub. It bears both axial and radial loads while providing precise rotational guidance for the wheel. It is a vital part of a car's load-bearing and rotation, and its performance directly affects the vehicle's ride comfort, handling stability, and safety.

[0003] The structural types of automotive wheel hub bearings include: double-row angular contact ball bearings with bearing housings, bearing units with flanges, and integral wheel hub bearing units. The bearings mainly consist of an inner ring, an outer ring, rolling elements, and a cage. The processing technology of automotive wheel hub bearings typically includes raw material preparation, precision machining, and finished product inspection. Among these, the precision machining process requires grinding the automotive wheel hub bearings. The raceways and inner and outer ring end faces are precision ground using a CNC grinding machine to ensure that the raceway roundness error is ≤0.002mm and the surface roughness Ra is ≤0.2μm. This is a key process that determines the bearing's rotational accuracy and lifespan.

[0004] Chinese patent document CN218575879U discloses a bearing polishing machine, including a base and a first support plate. The first support plate is fixedly connected to the top of the base. A motor is fixedly connected to one side of the first support plate. A first bevel gear is fixedly connected to the output end of the motor. A first rotating rod is rotatably connected to the side of the first support plate below the motor. A second rotating rod is rotatably connected to the side of the first support plate below the first rotating rod. A second bevel gear is fixedly connected to the side of the first rotating rod closest to the first support plate. The first bevel gear and the second bevel gear are meshed together. The first rotating rod is fixedly connected to the first gear on the side away from the first support plate, and the second rotating rod is fixedly connected to the second gear on the side away from the first support plate. The first gear and the second gear are meshed together. The first rotating rod is fixedly connected to the first polishing disc on the end away from the first support plate, and the second rotating rod is fixedly connected to the second polishing disc on the end away from the first support plate. The first polishing disc can be used to polish the side wall of the bearing, and the second polishing disc can be used to polish the outer ring of the bearing.

[0005] When in operation, the motor is started, which drives the first bevel gear to rotate. At the same time, the first bevel gear drives the second bevel gear to rotate. The second bevel gear then drives the first polishing disc to rotate through the first rotating rod and the first gear. Meanwhile, the first gear drives the second gear to rotate. At this time, the second gear then drives the second polishing disc to rotate through the second rotating rod, polishing the outer surface and sidewall of the bearing.

[0006] In the above technology, during use, when the polishing part is polished along the outer ring surface of the bearing inner ring, the polishing surface of the polishing part will contact the outer ring surface of the inner ring for polishing. When the polishing part contacts the protrusion on the outer ring surface of the inner ring, the polishing part will directly contact the root of the protrusion on the outer ring surface of the inner ring. When the protrusion is higher than the polishing part, the stress point of the polishing part will become larger, which will easily accelerate the wear of the polishing part and reduce the service life of the polishing part. Summary of the Invention

[0007] This invention provides a grinding device and method for automotive wheel hub bearings, aiming to solve the technical problem in the prior art where, during use, when a polishing part is polished along the outer ring surface of the bearing inner ring, the polishing surface of the polishing part contacts the outer ring surface of the inner ring for polishing. When the polishing part contacts the protrusion on the outer ring surface of the inner ring, the polishing part directly contacts the root of the protrusion on the outer ring surface of the inner ring. When the protrusion is higher than the polishing part, the stress point of the polishing part becomes larger, which easily accelerates the wear of the polishing part and reduces its service life.

[0008] In a first aspect, the present invention provides an automotive wheel hub bearing grinding device, comprising a base, a housing and a clamping assembly mounted on the top of the base, the clamping assembly being used to clamp the bearing, and further comprising:

[0009] The frame is mounted on the outer shell. Inside the frame, a connecting bracket and a first limiting member are slidably connected. The first limiting member is used to limit the movement of the connecting bracket. The connecting frame has a receiving opening, and a sliding wheel is installed at the bottom of the connecting frame. A mounting frame is slidably connected inside the receiving opening. A polishing part is provided at the bottom of the mounting frame. The polishing part is used to polish the outer ring surface of the inner ring. The mounting frame has two sliding states, namely left sliding and right sliding. The mounting frame can slide cyclically between left sliding and right sliding. When the mounting frame slides to the end of the receiving opening, it can push the corresponding first limiting member to rise, releasing the limitation on the connecting frame. After the limitation is released, the connecting frame slides inside the frame through the sliding wheel and slides to the next first limiting member, thereby driving the polishing part to gradually slide towards the inner ring outer ring surface to polish the protrusion.

[0010] Beneficial effects: With the setting of the first limiting member and the mounting bracket, when polishing the outer ring surface of the inner ring of the automotive wheel hub bearing is required, the bearing is clamped by the clamping assembly and the mounting bracket is slid. During the sliding process of the mounting bracket, when the mounting bracket slides to the left and right to the end of the receiving port, it can push the corresponding first limiting member to rise. At this time, the limiting of the connecting bracket can be released. Then, the connecting bracket after the limiting is released can slide inside the frame through the sliding wheel. The connecting bracket slides to the next first limiting member. During the sliding process, it can drive the polishing part to slide and gradually slide towards the outer ring surface of the inner ring, and gradually polish the protrusions on the outer ring surface of the inner ring. This can reduce the phenomenon that the polishing part directly contacts the root of the protrusions on the outer ring surface of the inner ring, which is prone to causing the polishing part to wear too quickly, thereby improving the service life of the polishing part.

[0011] Preferably, the mounting frame consists of a top plate, a U-shaped support frame, and a base plate. The U-shaped support frame is fixed between the top plate and the base plate. A drive shaft is installed between the top plate and the base plate, and the drive shaft is located inside the receiving opening. A first drive source is installed on the top of the base plate. A linkage side plate is connected to the outer wall of the top plate. When the drive shaft slides to the end of the receiving opening, the linkage side plate pushes against the first limiting member to raise the frame, thereby releasing the limiting on the connecting frame and allowing the connecting frame to gradually slide towards the inner ring.

[0012] Preferably, the connecting frame is provided with a limiting component, which includes a first outer cylinder rotatably connected to the outer wall of the drive shaft. The connecting frame has a side wall slide opening, and a limiting shaft is connected to the outer wall of the first outer cylinder. The limiting shaft is located inside the side wall slide opening. When the mounting frame is in a sliding state, the limiting shaft slides inside the side wall slide opening to support the mounting frame.

[0013] Beneficial effects: By setting the limiting component, when the mounting bracket is in a sliding state, the limiting shaft can slide inside the side wall sliding opening to support the mounting bracket, thus maintaining the stability of the mounting bracket when it slides.

[0014] Preferably, the inner bottom wall of the side wall slide is fixed with an arc-shaped guide block, and the inner top wall of the side wall slide is provided with an arc-shaped groove. When the limiting shaft slides inside the side wall slide, the limiting shaft is guided by the arc-shaped guide block and the arc-shaped groove, which drives the mounting bracket to slide up and down.

[0015] Beneficial effects: By setting up the arc-shaped guide block and the arc-shaped groove, when the limiting shaft slides inside the side wall slide, the limiting shaft can slide in the arc-shaped groove through the arc-shaped guide block, driving the mounting bracket to slide up and down, so that the polishing surface of the polished part can be evenly polished on the inner and outer ring surfaces.

[0016] Preferably, the frame is provided with a lifting assembly, which includes a top plate fixed to the top of the first limiting member and a first sliding hole opened on the top of the frame. The first sliding hole is provided with a top column, the bottom of which is connected to the top of the top plate. A lifting plate is connected between two corresponding top columns. The top plate is provided with a first elastic member. When the top column is raised, the top plate drives the two corresponding first limiting members to rise simultaneously, thereby releasing the limitation on the connecting frame. The first elastic member drives the unpushed first limiting members to return to their original position.

[0017] Beneficial effects: By setting up the lifting component, when the top column is raised, the top plate drives the two corresponding first limit members to rise simultaneously, thereby releasing the limit on the connecting frame, and the first elastic component can drive the unpushed first limit members to return to their original position.

[0018] Preferably, the bottom of the frame is provided with a first receiving groove, and a pusher is slidably connected inside the first receiving groove. A side frame is fixed to one side of the pusher, and a first lifting column is fixed to the top of the side frame. A first side plate is fixed between the first lifting column and the top column. When the top column slides up and down, the top column drives the pusher to slide up and down through the first side plate and the first lifting column, and pushes the frame to slide through the sliding wheel.

[0019] Preferably, the housing is provided with a drive mechanism, which includes an adjustment component and a drive component. The drive component controls the sliding state of the mounting bracket by driving the adjustment component.

[0020] Preferably, the adjustment assembly includes a second side plate, a second rotating shaft, a hinge, a third rotating shaft, and an inner column. The second side plate, through the cooperation of the second rotating shaft, the hinge, the third rotating shaft, and the inner column, is used to limit the position of the mounting bracket.

[0021] Beneficial effects: By adjusting the component settings, the second side plate, through the cooperation of the second pivot, hinge, third pivot and inner column, is used to limit the mounting bracket and maintain the stability of the mounting bracket when it slides up and down.

[0022] Preferably, the drive assembly includes a second drive source, a reciprocating screw, a sliding block, a second outer cylinder, and a second elastic component. When the second drive source drives the reciprocating screw to rotate, the sliding block controls the sliding state of the mounting bracket through the second outer cylinder and the second elastic component.

[0023] Secondly, the present invention provides a method for grinding automotive wheel hub bearings, utilizing the aforementioned automotive wheel hub bearing grinding apparatus, comprising the following steps: Bearing installation: Place the bearing in the clamping assembly and clamp the bearing using the clamping assembly to complete the bearing installation; Bearing grinding: Slide the mounting bracket. When the mounting bracket slides to the left and right to the end of the receiving port, it can push the corresponding first limiting member to rise, release the limitation on the connecting bracket. After the limitation is released, the connecting bracket slides inside the frame through the sliding wheel and slides to the next first limiting member, thereby driving the polishing part to gradually slide towards the inner ring outer ring face to grind the protrusion.

[0024] The beneficial effects of this invention are as follows: In this invention, by setting the first limiting member and the mounting bracket, when polishing the outer ring surface of the inner ring of an automotive wheel hub bearing is required using a polishing part, the bearing is clamped by the clamping assembly, and the mounting bracket is slid. During the sliding process of the mounting bracket, when the mounting bracket slides to the left and right to the end of the receiving opening, it can push the corresponding first limiting member to rise. At this time, the limiting of the connecting bracket can be released. Then, the connecting bracket after the limiting is released can slide inside the frame through the sliding wheel. The connecting bracket slides to the next first limiting member. During the sliding process, it can drive the polishing part to slide and gradually slide towards the outer ring surface of the inner ring, and gradually polish the protrusions on the outer ring surface of the inner ring. This can reduce the direct contact between the polishing part and the root of the protrusions on the outer ring surface of the inner ring, which can easily cause the polishing part to wear too quickly, thereby improving the service life of the polishing part. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0026] Figure 2 This is a partial cross-sectional view of the present invention.

[0027] Figure 3 This is a schematic diagram illustrating the structure of the second side plate of the present invention.

[0028] Figure 4 This is a schematic diagram illustrating the structure of the hinge component of the present invention.

[0029] Figure 5 This is a structural schematic diagram illustrating the positional relationship between the second rotating shaft and the hinge member according to the present invention.

[0030] Figure 6 This is a partial cross-sectional view illustrating the connection relationship between the inner column and the second elastic component according to the present invention.

[0031] Figure 7 This is a structural schematic diagram illustrating the connection relationship between the lifting plate and the top column of the present invention.

[0032] Figure 8 yes Figure 7 A magnified view of a portion of point A in the middle.

[0033] Figure 9 This is a schematic diagram of the arc-shaped positioning component of the present invention.

[0034] Figure 10 This is a partial cross-sectional view of the inclined groove shown in this invention.

[0035] Figure label: 10. Base; 11. Outer shell; 12. Connecting frame; 13. Mounting frame; 14. Polished part; 15. Frame; 16. First limiting component; 17. Sliding wheel; 18. First drive source; 19. Clamping assembly; 20. Top plate; 21. U-shaped support frame; 22. Chassis; 23. Linkage side plate; 32. Side wall sliding opening; 33. First outer cylinder; 34. Limiting shaft; 40. Arc-shaped guide block; 41. Arc-shaped groove; 51. Top plate; 52. Top column; 53. First sliding hole; 54. First elastic component; 55. Lifting plate; 71. First side plate; 72. Second limiting component; 73. First lifting column; 74. Sliding opening; 75. Side frame; 7 6. Pushing component; 77. First receiving groove; 80. Second side plate; 81. Second rotating shaft; 82. Hinge; 83. Third rotating shaft; 84. Inner column; 90. Second drive source; 91. Reciprocating screw; 92. Sliding block; 93. Second outer cylinder; 94. Second elastic component; 110. Third side plate; 111. Arc-shaped positioning component; 113. First sliding column; 114. Third elastic component; 115. Second receiving groove; 116. Fourth elastic component; 117. Second lifting column; 118. First pushing component; 119. Inclined groove; 120. Bottom block; 121. Fifth elastic component; 122. Positioning plate; 123. Second pushing component. Detailed Implementation

[0036] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0037] Reference Figures 1-10 The present invention discloses an automotive wheel hub bearing grinding device, comprising a base 10, a housing 11, a connecting frame 12, a mounting frame 13, a polishing component 14, a sliding wheel 17, and a first drive source 18. The bottom of the housing 11 is fixed to the top of the base 10. Two frames 15 are installed inside the housing 11. The connecting frame 12 is slidably connected to the inner wall of the frame 15 and has a through-hole. The mounting frame 13 is movably connected to the connecting frame 12 and is located inside the through-hole. The polishing component 14 is installed on the mounting frame 13 and is used to grind and polish the protrusions on the inner ring surface. A first limiting component 16 is installed inside both frames 15. The sliding wheel 17 is installed at the bottom of the connecting frame 12. The first drive source 18 is installed on the mounting frame 13. A drive mechanism is installed on the housing 11, which can drive the mounting frame 13 to slide on the connecting frame 12.

[0038] Mounting bracket 13 has two sliding directions: left and right. The sliding trajectory between left and right sliding is arc-shaped, and mounting bracket 13 can cycle between left and right sliding, thereby facilitating the polishing part 14 to polish the inner ring surface of the bearing. The first limiting member 16 and the sliding wheel 17 both have two sliding states: upward and downward. When the first limiting member 16 is in the upward state, it can release the limiting of the connecting bracket 12. When the first limiting member 16 changes from the upward state to the downward state, the first limiting member 16 returns to its initial position and limits the connecting bracket 12. When the sliding wheel 17 is in the upward state, it can push the connecting bracket 12 to slide inside the frame 15. When the sliding wheel 17 changes from the upward state to the downward state, the sliding wheel 17 returns to its initial position.

[0039] In use, the bearing is placed on the base 10. The output end of the first drive source 18 drives the polishing part 14 to rotate, while the drive mechanism drives the mounting bracket 13 to slide on the connecting bracket 12. When the mounting bracket 13 slides left and right in a cyclic manner inside the receiving port, the polishing part 14 can polish the protrusions on the outer surface of the inner ring. When the mounting bracket 13 slides to the end of the receiving port along the sliding trajectory of left and right sliding, it will abut against the corresponding first limiting member 16. At this time, the first limiting member 16 is in an upward state, and the sliding wheel 17 is also in an upward state. The first limiting member 16 can... Release the limiting position on the corresponding connecting frame 12, and the sliding wheel 17 pushes the connecting frame 12 to slide inside the frame 15. At this time, the connecting frame 12 slides to the next first limiting member 16, and at the same time drives the polishing part 14 to gradually slide towards the outer ring surface of the inner ring. At this time, the polishing part 14 can polish from the top of the protrusion on the outer ring surface of the inner ring to its bottom. When the first limiting member 16 in the upward state is not pushed by the mounting frame 13, the first limiting member 16 returns to the downward state to reset and blocks behind the mounting frame 13, thereby facilitating the limiting position of the mounting frame 13 and maintaining the polishing part 14 to polish the outer ring surface of the inner ring.

[0040] refer to Figure 6 and Figure 10 The mounting frame 13 consists of a top plate 20, a U-shaped support frame 21, and a base plate 22. The U-shaped support frame 21 is fixed between the outer wall of the top plate 20 and the outer wall of the base plate 22. The polishing part 14 is installed at the bottom of the base plate 22. The first drive source 18 is installed at the top of the top plate 20. A drive shaft is installed between the bottom of the top plate 20 and the top of the base plate 22. The top of the drive shaft is fixed to the output end of the first drive source 18, and the bottom of the drive shaft is fixed to the top of the polishing part 14. A linkage side plate 23 is fixed to the outer wall of the top plate 20 for pushing the first limiting member 16, thereby enabling the first limiting member 16 to be in an upward state.

[0041] The output end of the first drive source 18 drives the polishing part 14 to rotate through the drive shaft. When the drive mechanism drives the mounting bracket 13 to slide inside the connecting bracket 12, the polishing part 14 can polish the outer ring surface of the inner ring of the bearing. When the mounting bracket 13 slides to the end of the receiving port, the linkage side plate 23 will abut against the first limiting member 16. At this time, the first limiting member 16 is in an upward state. After rising, the first limiting member 16 is higher than the height of the connecting bracket 12, which can release the limiting of the connecting bracket 12. The connecting bracket 12 can slide forward inside the frame 15. At this time, the polishing part 14 slides to the outer ring surface of the inner ring and polishes the protrusions of the outer ring surface of the inner ring to maintain the flatness of the outer ring surface of the inner ring.

[0042] refer to Figure 2 and Figure 6 The connecting frame 12 is equipped with a limiting component to limit the mounting frame 13, thereby maintaining the stability of the mounting frame 13.

[0043] The limiting assembly includes a first outer cylinder 33, and the outer wall of the drive shaft is rotatably connected to the inner wall of the first outer cylinder 33. The first outer cylinder 33 is used to limit the drive shaft, thereby maintaining the stability of the drive shaft. Both sides of the connecting frame 12 are provided with side wall sliding openings 32, and the side wall sliding openings 32 are connected to the receiving opening. The inside of the side wall sliding openings 32 is slidably connected to a limiting shaft 34, and one end of the limiting shaft 34 is fixed to the outer wall of the first outer cylinder 33. The side wall sliding openings 32, in conjunction with the limiting shaft 34, can limit the first outer cylinder 33, thereby improving the stability of the first outer cylinder 33 when sliding.

[0044] refer to Figure 6 The sidewall slide 32 is provided with a guide component, which is used to enable the polishing surface of the polishing part 14 to uniformly polish the protrusions of the inner ring outer ring surface and polish the inner ring outer ring surface.

[0045] The guide assembly includes arc-shaped guide blocks 40, and multiple arc-shaped guide blocks 40 are fixed at intervals on the inner bottom wall of the side wall slide 32. Multiple arc-shaped grooves 41 are spaced apart on the inner top wall of the side wall slide 32, and the arc-shaped grooves 41 are located directly above the arc-shaped guide blocks 40. When the mounting bracket 13 slides on the connecting bracket 12, the limiting shaft 34 slides along the trajectory of the side wall slide 32. When the limiting shaft 34 slides onto the arc-shaped guide block 40, the limiting shaft 34 moves along the arc-shaped guide block 40. The upward slope of 0 causes the first outer cylinder 33 to rise. At this time, the first outer cylinder 33 drives the polishing part 14 to move upward through the drive shaft. When the mounting bracket 13 continues to slide along the extension direction of the receiving port, the limiting shaft 34 will slide down the arc-shaped guide block 40 and slide again to the inner bottom wall of the side wall sliding port 32. At this time, the position of the first outer cylinder 33 is restored, which enables the polishing part 14 to slide up and down, so that the polishing surface of the polishing part 14 can be evenly polished on the inner ring outer ring surface protrusion.

[0046] refer to Figure 6 , Figure 7 and Figure 8 The frame 15 is provided with a recovery component, which is used to release the first limiting member 16 from limiting the connecting frame 12.

[0047] The restoration component includes a top plate 51, which is fixed to the top of the first limiting member 16 to support the first limiting member 16 and maintain its stability. A first elastic member 54 is fixed between the top of the top plate 51 and the inner top wall of the frame 15 to support the top plate 51 and facilitate its reset. The top of the frame 15 is provided with a plurality of first sliding holes 53 at intervals. A top post 52 is slidably connected inside each of the plurality of first sliding holes 53, and the bottom of the top post 52 is fixed to the top of the top plate 51 to limit the top plate 51 and maintain the top plate 51 to drive the first limiting member 16 to slide vertically.

[0048] A lifting plate 55 is fixed between the two top columns 52 to limit the top columns 52, thereby keeping the two corresponding first limiting members 16 sliding up and down synchronously. When the first limiting member 16 is pushed by the linkage side plate 23, the first limiting member 16 drives the top plate 51 to compress the first elastic member 54. At the same time, the top column 52 slides inside the first sliding hole 53. The top plate 51 drives the connected top column 52 to slide through the lifting plate 55. At this time, the two corresponding first limiting members 16 move up, which can release the limitation on the mounting frame 13. When the mounting frame 13 passes the raised first limiting member 16, the first limiting member 16 is no longer pushed. The first elastic member 54 drives the top plate 51 to reset. After resetting, the top plate 51 is located behind the mounting frame 13, thereby abutting against the rear wall of the mounting frame 13 to limit it.

[0049] refer to Figure 3 , Figure 7 , Figure 8 and Figure 9 The frame 15 is provided with a pushing component for pushing the connecting frame 12 to slide forward.

[0050] The pushing assembly includes a pushing member 76, which is triangular in shape, with the inclined surface of the pushing member 76 facing the upward first limiting member 16. The bottom of the frame 15 is provided with a plurality of first receiving slots 77, and the pushing member 76 is slidably connected inside the first receiving slots 77. When the pushing member 76 moves upward, it can push the connecting frame 12 to slide inside the frame 15 through the sliding wheel 17, thereby facilitating the sliding of the connecting frame 12. A side frame 75 is fixed on the side of the pushing member 76 away from the connecting frame 12 to support the pushing member 76 and maintain its stability.

[0051] A second limiting member 72 is fixed on the side wall of the frame 15 away from the connecting frame 12. The second limiting member 72 is provided with a sliding opening 74. The first lifting column 73 is slidably connected inside the sliding opening 74. The bottom of the first lifting column 73 is fixed to the top of the side frame 75. When the first lifting column 73 slides up and down, the side frame 75 can drive the pushing member 76 to slide up and down, thereby maintaining the synchronous sliding of the pushing member 76 and the first limiting member 16. A first side plate 71 is fixed between the outer wall of the top column 52 and the top of the first lifting column 73.

[0052] When the first limiting member 16 is in the upward position, the first limiting member 16 drives the top column 52 to slide inside the first sliding hole 53. At the same time, the top column 52 drives the first lifting column 73 to slide in the sliding opening 74 through the first side plate 71. The first lifting column 73 drives the pushing member 76 to move upward inside the first receiving groove 77 through the side frame 75. At this time, the inclined surface of the pushing member 76 pushes the connecting frame 12 to slide inside the frame 15 through the sliding wheel 17, so that the polishing part 14 slides to the outer ring surface of the inner ring and polishes the protrusion of the outer ring surface of the inner ring.

[0053] refer to Figure 2 , Figure 4 , Figure 5 and Figure 6 The drive mechanism includes a drive component and an adjustment component. The adjustment component is used to limit the mounting bracket 13, thereby maintaining the stability of the mounting bracket 13 when it slides up and down. The drive component can drive the mounting bracket 13 to slide back and forth through the adjustment component, thereby facilitating the polishing part 14 to polish the protrusions on the outer ring surface of the inner ring.

[0054] refer to Figure 3 , Figure 4 and Figure 5 The adjustment assembly includes a second side plate 80, a hinge 82, and an inner column 84. The second side plate 80 is fixed to one side wall of the U-shaped support frame 21. A second rotating shaft 81 is connected between the second side plate 80 and the hinge 82. The hinge 82 has an arc-shaped sliding groove on one side wall facing the second rotating shaft 81. One end of the second rotating shaft 81 is connected to the outer wall of the second side plate 80, and the other end of the second rotating shaft 81 is slidably connected inside the arc-shaped sliding groove. A third rotating shaft 83 is rotatably connected between the inner column 84 and the hinge 82. When the limiting shaft 34 slides along the extension direction of the side wall sliding opening 32 and slides up and down under the guidance of the arc-shaped guide block 40, the second side plate 80 of the U-shaped support frame 21 slides inside the arc-shaped sliding groove through the second rotating shaft 81, and drives the hinge 82 to slide up and down. At the same time, the hinge 82 drives the third rotating shaft 83 to rotate on the inner column 84, thereby maintaining the stability of the mounting frame 13 when sliding up and down.

[0055] refer to Figure 2 and Figure 6The drive assembly includes a second drive source 90, a reciprocating lead screw 91, a sliding block 92, and a second outer cylinder 93. The inner column 84 is slidably connected inside the second outer cylinder 93. A second elastic member 94 is fixed to one end of the inner column 84 on the inner wall of the second outer cylinder 93 to support the inner column 84, thereby facilitating the resetting of the inner column 84. The end of the second outer cylinder 93 away from the U-shaped support frame 21 is fixed to the outer wall of the sliding block 92.

[0056] The middle part of the sliding block 92 is threadedly connected to the reciprocating screw 91, and both ends of the reciprocating screw 91 are rotatably connected to the inner wall of the outer casing 11. The output end of the second drive source 90 is connected to one end of the reciprocating screw 91. When the output end of the second drive source 90 drives the reciprocating screw 91 to rotate, the reciprocating screw 91 drives the sliding block 92 to slide. At this time, the second outer cylinder 93 drives the mounting bracket 13 to slide on the connecting bracket 12 through the adjustment component, so as to facilitate the polishing part 14 to polish the outer ring surface of the inner ring.

[0057] A clamping assembly 19 is installed on the top of the base 10, and the clamping assembly 19 is located inside the inner ring to clamp the inner ring, thereby preventing the inner ring from loosening during grinding and polishing.

[0058] In order to allow the polished part 14, after the protrusion is polished, to remain on the outer ring surface of the inner ring and to prevent the polished part 14 from continuing to slide forward and excessively polishing the bearing, the present invention also provides a second embodiment.

[0059] refer to Figure 9 and Figure 10 Both sides of the polished part 14 are provided with arc-shaped positioning parts 111 for positioning the mounting bracket 13, thereby preventing the mounting bracket 13 from continuing to slide forward. Both sides of the U-shaped support bracket 21 are fixed with third side plates 110. A third elastic component 114 is fixed between one side of the third side plate 110 and the outer wall of the arc-shaped positioning part 111 for supporting the arc-shaped positioning part 111, thereby facilitating the resetting of the arc-shaped positioning part 111. The third side plate 110 is provided with a first limiting hole. A first sliding column 113 is slidably connected inside the first limiting hole. The first sliding column 113 is located inside the third elastic component 114, and one end of the first sliding column 113 is fixed to the outer wall of the arc-shaped positioning part 111 for supporting the arc-shaped positioning part 111, thereby maintaining the stability of the arc-shaped positioning part 111.

[0060] The outer wall of the top plate 20 is provided with a second receiving groove 115. A fourth elastic component 116 is fixed between the inner wall of the second receiving groove 115 and one side of the linkage side plate 23 for supporting the linkage side plate 23, thereby facilitating the reset of the linkage side plate 23. A inclined groove 119 is provided on the linkage side plate 23. A first pusher 118 is movably connected inside the inclined groove 119 for pushing the linkage side plate 23 into the interior of the second receiving groove 115, thereby preventing the linkage side plate 23 from pushing the first limiting component 16. A second lifting column 117 is fixed at the bottom of the first pusher 118. A bottom block 120 is fixed at the bottom of the second lifting column 117. A second pusher 123 is fixed at the top of the arc-shaped positioning component 111 for pushing the bottom block 120, thereby facilitating the release of the linkage side plate 23 from the restriction of the first limiting component 16.

[0061] A positioning plate 122 is fixed to the outer wall of the second lifting column 117. A fifth elastic component 121 is fixed between the bottom of the positioning plate 122 and the top of the chassis 22 to support the positioning plate 122, thereby facilitating the restoration of the first pusher 118. The bottom of the base block 120 has a first arc surface at the top and a second arc surface at the bottom, and the arc-shaped positioning component 111 is arc-shaped.

[0062] When the mounting bracket 13 sliding towards the inner ring causes the arc-shaped positioning member 111 to abut against the outer ring surface of the inner ring, the polishing member 14 has already finished polishing the protrusions on the outer ring surface of the inner ring. The polishing member 14 can polish the outer ring surface of the inner ring. The arc-shaped positioning member 111 abutting against the outer ring surface of the inner ring causes the first sliding column 113 to slide inside the first limiting hole, while compressing the third elastic member 114. When the first arc surface of the bottom block 120 fixed on the top of the arc-shaped positioning member 111 in the sliding state contacts the second arc surface of the second push member 123, the second push member... 123 drives the first pusher 118 to rise through the second lifting column 117. The first pusher 118 pushes the linkage side plate 23 to slide inside the second receiving groove 115, while compressing the fourth elastic component 116. When the mounting frame 13 slides to the end of the receiving opening, the linkage side plate 23 will not contact the first limiting component 16, while the first limiting component 16 continues to limit the connecting frame 12. At this time, the mounting frame 13 is in a cyclic left and right sliding, while the connecting frame 12 no longer slides forward. At this time, the polishing component 14 can grind and polish the inner ring outer ring surface.

[0063] Reference Figures 1-10 The present invention also provides a method for grinding automotive wheel hub bearings, which includes the following steps: Bearing installation: Place the bearing in the clamping assembly 19 and clamp the bearing using the clamping assembly 19 to complete the installation of the bearing; Bearing polishing: Slide the mounting bracket 13. When the mounting bracket 13 slides to the left and right to the end of the receiving port, it can push the corresponding first limiting member 16 to rise, release the limitation on the connecting bracket 12. After the limitation is released, the connecting bracket 12 slides inside the frame 15 through the sliding wheel 17 and slides to the next first limiting member 16, thereby driving the polishing part 14 to gradually slide towards the inner ring outer ring face to polish the protrusion.

[0064] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A kind of automobile wheel hub bearing polishing device, including base (10), the top of base (10) is equipped with shell (11) and clamping assembly (19), clamping assembly (19) is used to the clamping of bearing;Its characterized in that, Also include: The frame (15) is installed on the shell (11), the inside of the frame (15) is slidably connected with the connecting frame (12) and the first limiting piece (16), and the first limiting piece (16) is used for limiting the connecting frame (12); The bottom of the connecting frame (12) is provided with a sliding wheel (17), the inside of the accommodating port is slidably connected with the mounting frame (13), the bottom of the mounting frame (13) is provided with a polishing piece (14), the polishing piece (14) is used for polishing the outer ring surface of the inner ring, the mounting frame (13) has two sliding states, and the two sliding states are left sliding and right sliding respectively, and the mounting frame (13) can cyclically slide between left sliding and right sliding, when the mounting frame (13) left slides and right slides to the end of the accommodating port, the corresponding first limiting piece (16) can be pushed to rise, the limiting of the connecting frame (12) is released, and the connecting frame (12) after releasing the limiting slides in the frame (15) and slides to the next first limiting piece (16), so that the polishing piece (14) gradually slides to the outer ring surface of the inner ring to polish the protrusion.

2. The automobile wheel hub bearing polishing device according to claim 1, wherein, The mounting frame (13) is composed of a top disc (20), a U-shaped support frame (21) and a bottom disc (22), the U-shaped support frame (21) is fixed between the top disc (20) and the bottom disc (22), a driving shaft is installed between the top disc (20) and the bottom disc (22), and the driving shaft is located in the inside of the accommodating port, the top of the bottom disc (22) is provided with a first driving source (18), the outer wall of the top disc (20) is connected with a linkage side plate (23), when the driving shaft slides to the end of the accommodating port, the linkage side plate (23) pushes the first limiting piece (16) to rise, the limiting of the connecting frame (12) is released, so that the connecting frame (12) gradually slides to the inner ring.

3. The automobile wheel hub bearing polishing device according to claim 1, wherein, The connecting frame (12) is provided with a limiting assembly, the limiting assembly comprises a first outer cylinder (33) rotatably connected to the outer wall of the driving shaft, a side wall sliding port (32) is formed in the connecting frame (12), a limiting shaft (34) is connected to the outer wall of the first outer cylinder (33), and the limiting shaft (34) is located in the inside of the side wall sliding port (32), when the mounting frame (13) is in the sliding state, the limiting shaft (34) slides in the inside of the side wall sliding port (32) to support the mounting frame (13).

4. The automotive wheel hub bearing abrader of claim 3, wherein, The inner bottom wall of the side wall sliding port (32) is fixed with an arc-shaped guide block (40), the inner top wall of the side wall sliding port (32) is provided with an arc-shaped groove (41), when the limiting shaft (34) slides in the inside of the side wall sliding port (32), the limiting shaft (34) is guided by the arc-shaped guide block (40) and the arc-shaped groove (41) to drive the mounting frame (13) to slide up and down.

5. The automotive wheel hub bearing polishing apparatus of claim 1, wherein, The frame (15) is provided with a lifting assembly, which comprises a top plate (51) fixed on the top of the first limiting piece (16) and a first sliding hole (53) formed in the top of the frame (15), the inside of the first sliding hole (53) is provided with a top column (52), the bottom of the top column (52) is connected with the top of the top plate (51), two corresponding top columns (52) are connected with a lifting plate (55), the top plate (51) is provided with a first elastic component (54), when the top column (52) is lifted, the top plate (51) drives the corresponding two first limiting pieces (16) to be lifted at the same time, so that the limiting of the connecting frame (12) is released, and the first elastic component (54) drives the first limiting piece (16) to recover.

6. The automotive wheel hub bearing polishing apparatus of claim 1, wherein, The bottom of the frame (15) is provided with a first accommodating groove (77), the inside of the first accommodating groove (77) is slidably connected with a pushing piece (76), one side of the pushing piece (76) is fixedly connected with a side frame (75), the top of the side frame (75) is fixedly connected with a first lifting column (73), the first lifting column (73) and the top column (52) are fixedly connected with a first side plate (71), when the top column (52) slides up and down, the top column (52) drives the pushing piece (76) to slide up and down through the first side plate (71) and the first lifting column (73), and the frame (15) is pushed to slide through the sliding wheel (17).

7. The automotive wheel hub bearing abrader of claim 1, wherein, The shell (11) is provided with a driving mechanism, the driving mechanism comprises an adjusting assembly and a driving assembly, the driving assembly drives the adjusting assembly to control the sliding state of the mounting frame (13).

8. The automotive wheel hub bearing abrader of claim 7, wherein, The adjusting assembly comprises a second side plate (80), a second rotating shaft (81), a hinge (82), a third rotating shaft (83) and an inner column (84), the second side plate (80) is used for limiting the mounting frame (13) through the cooperation of the second rotating shaft (81), the hinge (82), the third rotating shaft (83) and the inner column (84).

9. The automotive wheel hub bearing abrader of claim 7, wherein, The driving assembly comprises a second driving source (90), a reciprocating lead screw (91), a sliding block (92), a second outer cylinder (93) and a second elastic component (94), when the second driving source (90) drives the reciprocating lead screw (91) to rotate, the sliding block (92) controls the sliding state of the mounting frame (13) through the second outer cylinder (93) and the second elastic component (94).

10. A method of polishing an automotive wheel bearing, characterized by, The automobile wheel hub bearing polishing device comprises the following steps: bearing installation: the bearing is placed at the clamping assembly (19), and the bearing is clamped by the clamping assembly (19), so that the bearing installation is completed; bearing polishing: the mounting frame (13) is slid, when the mounting frame (13) is slid to the end of the accommodating opening, the corresponding first limiting piece (16) can be lifted to release the limiting of the connecting frame (12), and the connecting frame (12) after the limiting is released slides in the frame (15) through the sliding wheel (17) and slides to the next first limiting piece (16), so that the polishing piece (14) gradually slides to the inner ring outer ring surface to polish the protrusions.

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