Hub bearing assembly positioning aid

Abstract

The utility model relates to the technical field of hub bearing assembly, concretely to a kind of hub bearing assembly positioning auxiliary structure, including support, installation box, turnover clamping mechanism and the turnover transmission mechanism that can drive turnover clamping mechanism overturn, turnover clamping mechanism and turnover transmission mechanism are respectively left and right symmetrical with two, two turnover clamping mechanisms are located below installation box, and turnover clamping mechanism and turnover transmission mechanism are corresponding to each other, further include the turnover driving mechanism that can drive two turnover transmission mechanisms operation and the bidirectional displacement driving mechanism that can drive two turnover transmission mechanisms move towards and reverse, turnover driving mechanism is installed in installation box, bidirectional displacement driving mechanism is located above installation box, the upper portion of support is equipped with lifting push-pull rod, the output end of lifting push-pull rod is fixed with the upper surface of installation box. Solve the problem that the existing hub assembly auxiliary device overturns unstable, positioning precision is poor.

Description

Technical Field

[0001] This utility model relates to the field of wheel hub bearing assembly technology, specifically to an auxiliary structure for wheel hub bearing assembly and positioning. Background Technology

[0002] The quality of wheel bearing assembly directly affects vehicle safety, performance, and reliability. Precise assembly is a prerequisite for ensuring that the bearing performs its core functions of support, drag reduction, and force transmission, and its importance extends to multiple dimensions such as vehicle driving stability, handling precision, and service life. Wheel bearing assembly auxiliary tools are generally used during the wheel bearing assembly process.

[0003] In existing technologies, such as the Chinese patent with publication number CN222331342U, a wheel hub assembly auxiliary device involves installing the wheel hub on a rotating jaw with a pad and securing it with bolts through threaded holes. A lifting ring is then attached to a crane hook. After pressing the inner bearing into the wheel hub, the operator uses the rotating jaw to clamp the wheel hub flange and tightens the bolts for locking. The crane then lifts the lifting device, which in turn lifts the wheel hub. The wheel hub is manually rotated 180° and placed on a tooling table for assembly. The bolts are loosened, the lifting device is removed, and the outer bearing, oil seal, and gear ring are pressed into place. In this technical solution, the wheel hub needs to be manually rotated, which is labor-intensive, inefficient, and prone to instability and poor positioning accuracy. This can easily lead to bearing misalignment or damage to the sealing structure, affecting the final assembly quality. Furthermore, since the rotating clamping mechanism cannot be fixed, the wheel hub may rotate during the installation of the inner and outer bearings, affecting the installation efficiency of the wheel hub bearings. Utility Model Content

[0004] This invention proposes an auxiliary structure for wheel hub bearing assembly and positioning, which solves the problems of unstable rotation and poor positioning accuracy of existing wheel hub assembly auxiliary devices.

[0005] To achieve the above objectives, this utility model proposes an auxiliary structure for assembling and positioning wheel hub bearings, including a bracket, a mounting box, a flipping clamping mechanism, and a flipping transmission mechanism capable of driving the flipping clamping mechanism to flip. The mounting box slides vertically within the bracket. Two flipping clamping mechanisms and two flipping transmission mechanisms are symmetrically arranged on the left and right sides. Both flipping transmission mechanisms are installed inside the mounting box. The two flipping clamping mechanisms are located below the mounting box, and the flipping clamping mechanisms and the flipping transmission mechanisms are vertically opposite each other. It also includes a flipping drive mechanism capable of driving the two flipping transmission mechanisms to operate and a bidirectional displacement drive mechanism capable of driving the two flipping transmission mechanisms to move in opposite directions and in opposite directions. The flipping drive mechanism is installed in the mounting box and the bidirectional displacement drive mechanism is located on the mounting box. A lifting push-pull rod is installed on the upper part of the bracket, and the output end of the lifting push-pull rod is fixed to the upper surface of the mounting box.

[0006] Preferably, the support includes a support plate and a stabilizer. Two support plates and two stabilizers are provided. The stabilizers are inverted U-shaped and the two stabilizers are arranged in parallel front to back. The two support plates are respectively fixed to the lower ends of the left and right vertical parts of the two stabilizers. A connecting block is fixed between the horizontal parts of the two stabilizers, and the fixed end of the lifting push rod is fixedly connected to the connecting block; An inverted U-shaped drive frame is fixed to the upper surface of the mounting box, and the output end of the lifting push rod is fixedly connected to the horizontal part of the drive frame.

[0007] Preferably, an L-shaped lifting frame slides vertically between the vertical parts of the two front and rear stabilizing frames, the mounting box is fixed between the vertical parts of the two lifting frames, and the two flipping clamping mechanisms slide on the upper surfaces of the horizontal parts of the two lifting frames respectively.

[0008] Preferably, the top and bottom walls of the mounting box are respectively provided with two left-right symmetrical upper sliding holes and two left-right symmetrical lower sliding holes, and the upper sliding holes and the lower sliding holes are vertically opposite each other.

[0009] Preferably, the flipping transmission mechanism includes an upper displacement box, an upper driving bevel gear, an upper driven bevel gear, a slide tube, and a transmission rod; The upper and lower parts of the upper displacement box slide in the upper sliding hole and the lower sliding hole respectively, the sliding tube is arranged in the upper displacement box, and the two ends of the sliding tube are rotatably connected to the left and right side walls of the upper displacement box respectively. Both the upper driving bevel gear and the upper driven bevel gear are disposed inside the upper displacement box. The upper driving bevel gear is sleeved outside the slide tube and is fixed to the slide tube. The upper end of the transmission rod passes through the bottom wall of the upper displacement box and enters the upper displacement box. The transmission rod rotates relative to the bottom wall of the upper displacement box. The upper driven bevel gear is fixedly connected to the upper end of the transmission rod. The upper driving bevel gear meshes with the upper driven bevel gear. The inner wall of the slide tube is provided with a limiting groove.

[0010] Preferably, the bidirectional displacement drive mechanism includes a bidirectional displacement drive motor, a bidirectional lead screw, and two drive blocks; The two driving blocks are respectively fixed to the upper surfaces of the left and right upper displacement boxes; The left and right sections of the bidirectional lead screw are provided with threads in opposite directions on their circumferential surfaces, and the bidirectional lead screw passes through the lower part of the drive frame; The bidirectional displacement drive motor is installed on the upper vertical part of one of the lifting frames. One end of the bidirectional lead screw is fixedly connected to the output end of the bidirectional displacement drive motor, and the other end of the bidirectional lead screw is rotatably connected to the upper vertical part of the other lifting frame.

[0011] Preferably, the flipping drive mechanism includes a flipping drive motor, a drive gear, a driven gear, and a rotating rod; The reversing drive motor is installed inside the mounting box, and the drive gear is fixedly connected to the output end of the reversing drive motor; The rotating rod rotates within the mounting box, the driven gear is fixed in the middle of the rotating rod, and the driven gear meshes with the driving gear; The rotating rod has a limiting edge on its circumferential side, and the two sliding tubes on the left and right sides of the rotating rod are respectively sleeved on the left and right side sections of the rotating rod. The limiting edge slides in the limiting groove.

[0012] Preferably, the flipping clamping mechanism includes a lower displacement box, a lower driving bevel gear, a lower driven bevel gear, a rotating shaft, and an arc-shaped clamping plate; The lower displacement box slides on the upper surface of the horizontal part of the lifting frame, and both the lower driving bevel gear and the lower driven bevel gear are arranged inside the lower displacement box; The lower end of the transmission rod passes through the top wall of the lower displacement box and extends into its interior, and rotates relative to the top wall of the lower displacement box; A stabilizing tube is fixed to the middle of the opposite sidewalls of the two lower displacement boxes. The rotating shaft passes through the stabilizing tube, and the part of the rotating shaft inside the stabilizing tube rotates relative to the stabilizing tube. The lower driving bevel gear is fixedly connected to the lower end of the transmission rod, the lower driven bevel gear is fixedly connected to the rotating shaft, the lower driving bevel gear meshes with the lower driven bevel gear, and the clamping plate is fixed to the outer end of the rotating shaft.

[0013] Preferably, two fixing holes are respectively provided on the opposite walls of the two lower displacement boxes, and the two fixing holes are respectively located on the upper and lower sides of the stabilizing tube; The circumferential side of the rotating shaft located outside the stabilizing tube is provided with a retaining ridge.

[0014] Preferably, the flipping clamping mechanism further includes a stabilizing disk, a through hole is formed at the axis of the stabilizing disk, and a slot is formed on the wall of the through hole. The stabilizing disk is sleeved on the outside of the rotating shaft through the through hole, and the locking edge is engaged in the slot. The stabilizing disk slides relative to the rotating shaft. The stabilizing plate has two stabilizing rods on its side near the lower displacement box. The two stabilizing rods are located on the upper and lower sides of the through hole, respectively, and the positions of the stabilizing rods correspond to those of the fixing holes.

[0015] This utility model has the following beneficial effects: 1. When assembling wheel hub bearings, the two flipping clamping mechanisms are driven by the bidirectional displacement drive mechanism to lower and clamp the wheel hub, and the wheel hub is lifted by starting the lifting push, which makes it convenient to press the wheel hub bearings into place, saving time and effort. 2. After the bearing inside the wheel hub is pressed in and the wheel hub needs to be flipped, start the flipping drive motor, and drive the clamping plate in the flipping clamping mechanism to flip 180° through the flipping transmission mechanism. The wheel hub will flip 180° synchronously under the drive of the clamping plate. This eliminates the need for manual flipping of the wheel hub, saving time and effort. Then, the clamping plate is locked by the cooperation of the stabilizing rod on the side of the stabilizing plate and the fixing hole on the side wall of the lower displacement box. In this way, the wheel hub can be prevented from rotating when pressing the wheel hub bearing, thereby improving the pressing efficiency of the wheel hub bearing.

[0016] 3. The stabilizing tube provides central support for the rotating shaft, reducing cantilever deflection and improving clamping rigidity; 4. When the lifting push rod extends or retracts, it drives the mounting box to move vertically along the stabilizer, thereby adjusting the tilting height. The entire structure moves in a coordinated manner and is precisely positioned, meeting the needs of continuous multi-station operation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the wheel hub bearing assembly and positioning auxiliary structure described in this utility model; Figure 2 This is a schematic diagram showing the connection between the bidirectional displacement drive mechanism and the flipping transmission mechanism, as well as the flipping transmission mechanism and the flipping clamping mechanism, in the wheel hub bearing assembly and positioning auxiliary structure of this utility model. Figure 3 This is a schematic diagram of the internal structure of the upper displacement box in the wheel hub bearing assembly and positioning auxiliary structure of this utility model; Figure 4 This is a schematic diagram showing the connection between the upper active bevel gear and the slide tube in the wheel hub bearing assembly and positioning auxiliary structure described in this utility model. Figure 5 This is a schematic diagram of the flipping clamping mechanism in the wheel hub bearing assembly and positioning auxiliary structure of this utility model; Figure 6 This is a schematic diagram showing the connection between the lower driven bevel gear and the stabilizing disc in the wheel hub bearing assembly and positioning auxiliary structure described in this utility model.

[0018] In the diagram: 1. Bracket; 11. Support plate; 12. Stabilizer; 13. Connecting block; 2. Mounting box; 21. Upper sliding hole; 22. Lower sliding hole; 3. Flipping clamping mechanism; 31. Lower displacement box; 311. Fixing hole; 32. Lower driving bevel gear; 33. Lower driven bevel gear; 34. Rotating shaft; 341. Clamping rib; 35. Stabilizing disc; 351. Stabilizing rod; 352. Through hole; 353. Slot; 36. Clamping plate; 37. Stabilizing tube; 4. 5. Lifting push-pull rod; 6. Lifting frame; 7. Bidirectional displacement drive mechanism; 71. Bidirectional displacement drive motor; 72. Bidirectional lead screw; 73. Drive block; 8. Tilting drive motor; 9. Driving gear; 100. Driven gear; 200. Rotating rod; 210. Limiting ridge; 300. Upper displacement box; 310. Upper driving bevel gear; 320. Upper driven bevel gear; 330. Slide tube; 3301. Limiting groove; 340. Transmission rod. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments, so that those skilled in the art can implement it based on the description.

[0020] This utility model proposes an auxiliary structure for assembling and positioning wheel hub bearings, such as... Figure 1 and Figure 2 As shown, the system includes a bracket 1, a mounting box 2, a flipping clamping mechanism 3, and a flipping transmission mechanism that can drive the flipping clamping mechanism 3 to flip. The mounting box 2 slides vertically within the bracket 1. Two flipping clamping mechanisms 3 and two flipping transmission mechanisms are symmetrically arranged on the left and right sides, respectively. Both flipping transmission mechanisms are installed inside the mounting box 2. The two flipping clamping mechanisms 3 are located below the mounting box 2, and the flipping clamping mechanisms 3 and the flipping transmission mechanisms are vertically aligned. The system also includes a flipping drive mechanism that can drive the two flipping transmission mechanisms to operate and a bidirectional displacement drive mechanism 7 that can drive the two flipping transmission mechanisms to move in opposite directions. The flipping drive mechanism is installed inside the mounting box 2, and the bidirectional displacement drive mechanism 7 is located above the mounting box 2. A lifting push-pull rod 5 is installed on the upper part of the bracket 1, and the output end of the lifting push-pull rod 5 is fixed to the upper surface of the mounting box 2.

[0021] The lifting push-pull rod 5 can be an electric push-pull rod or a hydraulic rod.

[0022] like Figure 1 As shown, the bracket 1 includes a support plate 11 and a stabilizer 12; There are two support plates 11 and two stabilizers 12. The stabilizers 12 are inverted U-shaped and the two stabilizers 12 are arranged in parallel front to back. The two support plates 11 are respectively fixed to the lower ends of the left and right vertical parts of the two stabilizers 12. A connecting block 13 is fixed between the horizontal parts of the two stabilizers 12, and the fixed end of the lifting push rod 5 is fixedly connected to the connecting block 13.

[0023] like Figure 1 As shown, an inverted U-shaped drive frame 4 is fixed on the upper surface of the mounting box 2, and the output end of the lifting push rod 5 is fixedly connected to the horizontal part of the drive frame 4.

[0024] like Figure 1 and Figure 2 As shown, an L-shaped lifting frame 6 slides vertically between the vertical parts of the two front and rear stabilizing frames 12. The mounting box 2 is fixed between the vertical parts of the two lifting frames 6, and the two flipping clamping mechanisms 3 slide on the upper surface of the horizontal part of the two lifting frames 6 respectively.

[0025] like Figure 2 As shown, the top and bottom walls of the mounting box 2 are respectively provided with two left-right symmetrical upper sliding holes 21 and two left-right symmetrical lower sliding holes 22, with the upper sliding holes 21 and the lower sliding holes 22 corresponding to each other vertically.

[0026] like Figure 2 and Figure 3 As shown, the tilting transmission mechanism includes an upper displacement box 300, an upper driving bevel gear 310, an upper driven bevel gear 320, a slide tube 330, and a transmission rod 340; The upper and lower parts of the upper displacement box 300 slide in the upper sliding hole 21 and the lower sliding hole 22 respectively. The sliding tube 330 is set in the upper displacement box 300, and the two ends of the sliding tube 330 are rotatably connected to the left and right side walls of the upper displacement box 300 respectively. Both the upper driving bevel gear 310 and the upper driven bevel gear 320 are installed inside the upper displacement box 300. The upper driving bevel gear 310 is sleeved outside the slide tube 330 and is fixed to the slide tube 330. The upper end of the transmission rod 340 passes through the bottom wall of the upper displacement box 300 and enters the upper displacement box 300. The transmission rod 340 rotates relative to the bottom wall of the upper displacement box 300. The upper driven bevel gear 320 is fixedly connected to the upper end of the transmission rod 340. The upper driving bevel gear 310 and the upper driven bevel gear 320 mesh.

[0027] like Figure 4 As shown, a limiting groove 3301 is provided on the inner wall of the slide tube 330.

[0028] like Figure 1 and Figure 2 As shown, the bidirectional displacement drive mechanism 7 includes a bidirectional displacement drive motor 71, a bidirectional lead screw 72, and two drive blocks 73; Two drive blocks 73 are respectively fixed to the upper surfaces of the left and right upper displacement boxes 300; The left and right sections of the double-acting screw 72 are provided with threads in opposite directions on their circumferential surfaces, and the double-acting screw 72 passes through the lower part of the drive frame 4; A bidirectional displacement drive motor 71 is installed on the upper vertical part of one of the lifting frames 6. One end of the bidirectional lead screw 72 is fixedly connected to the output end of the bidirectional displacement drive motor 71, and the other end of the bidirectional lead screw 72 is rotatably connected to the upper vertical part of the other lifting frame 6.

[0029] like Figure 2 and Figure 3 As shown, the flipping drive mechanism includes a flipping drive motor 8, a drive gear 9, a driven gear 100, and a rotating rod 200; The tilting drive motor 8 is installed inside the mounting box 2, and the drive gear 9 is fixedly connected to the output end of the tilting drive motor 8. The rotating rod 200 rotates inside the mounting box 2, and the driven gear 100 is fixed in the middle of the rotating rod 200. The driven gear 100 meshes with the driving gear 9. The rotating rod 200 has a limiting edge 210 on its circumferential side. The left and right sliding tubes 330 are respectively sleeved on the left and right side sections of the rotating rod 200, and the limiting edge 210 slides in the limiting groove 3301.

[0030] like Figure 5 As shown, the flipping clamping mechanism 3 includes a lower displacement box 31, a lower driving bevel gear 32, a lower driven bevel gear 33, a rotating shaft 34, and an arc-shaped clamping plate 36; The lower displacement box 31 slides on the upper surface of the horizontal part of the lifting frame 6, and the lower driving bevel gear 32 and the lower driven bevel gear 33 are both installed in the lower displacement box 31. The lower end of the transmission rod 340 passes through the top wall of the lower displacement box 31 and extends into its interior, and rotates relative to the top wall of the lower displacement box 31. A stabilizing tube 37 is fixed in the middle of the opposite sidewalls of the two lower displacement boxes 31. The rotating shaft 34 passes through the stabilizing tube 37, and the part of the rotating shaft 34 located inside the stabilizing tube 37 rotates relative to the stabilizing tube 37. The lower driving bevel gear 32 is fixedly connected to the lower end of the transmission rod 340, the lower driven bevel gear 33 is fixedly connected to the rotating shaft 34, the lower driving bevel gear 32 and the lower driven bevel gear 33 mesh, and the clamping plate 36 is fixed to the outer end of the rotating shaft 34.

[0031] like Figure 5 As shown, two fixing holes 311 are respectively opened on the opposite walls of the two lower displacement boxes 31, and the two fixing holes 311 are located on the upper and lower sides of the stabilizing tube 37 respectively.

[0032] like Figure 6 As shown, the circumferential side of the rotating shaft 34 located outside the stabilizing tube 37 is provided with a retaining ridge 341.

[0033] like Figure 5 and Figure 6As shown, the flipping clamping mechanism 3 also includes a stabilizing disk 35. A through hole 352 is provided at the axis of the stabilizing disk 35. A slot 353 is provided on the wall of the through hole 352. The stabilizing disk 35 is sleeved on the outside of the rotating shaft 34 through the through hole 352, and the locking edge 341 is inserted into the slot 353. The stabilizing disk 35 slides relative to the rotating shaft 34. The stabilizing plate 35 has two stabilizing rods 351 on its side near the lower displacement box 31. The two stabilizing rods 351 are located on the upper and lower sides of the through hole 352, and the positions of the stabilizing rods 351 and the fixing holes 311 are corresponding.

[0034] Using this invention, when assembling the wheel hub bearing, the lifting push-pull rod 5 is activated. The output end of the lifting push-pull rod 5 moves downward, pushing the drive frame 4 downward. The drive frame 4 pushes the mounting box 2 downward, and the mounting box 2 drives the two lifting frames 6 downward. The bidirectional displacement drive mechanism 7, the flipping clamping mechanism 3, the flipping transmission mechanism, and the flipping drive mechanism all move downward simultaneously. After the two flipping clamping mechanisms 3 move to the position of the wheel hub, the bidirectional displacement drive motor 71 is activated. The bidirectional displacement drive motor 71 drives the bidirectional lead screw 72 to rotate, causing the two drive blocks 73 to move towards each other along the thread direction. Thus, the two upper displacement boxes 300 are driven to move synchronously towards each other through the two driving blocks 73, the slide tube 330 slides along the axial direction of the rotating rod 200, and with the cooperation of the limiting rib 210 and the limiting groove 3301, the slide tube 330 and the rotating rod 200 are circumferentially fixed and will not rotate relative to each other. The two upper displacement boxes 300 drive the two lower displacement boxes 31 to move towards each other through the corresponding transmission rods 340, and the two clamping plates 36 move towards each other accordingly to clamp the wheel hub. Then, the lifting push-pull rod 5 is activated again to lift the mounting box 2 and lift the wheel hub at the same time, so that the bearing inside the wheel hub can be pressed in. After the bearings inside the wheel hub are press-fitted and the wheel hub needs to be rotated, first move the stabilizing disc 35 away from the lower displacement box 31, so that the stabilizing rod 351 is pulled out from the fixing hole 311, releasing the lock between the stabilizing disc 35 and the lower displacement box 31. Then, start the rotation drive motor 8. The rotation drive motor 8 drives the drive gear 9 to rotate, which in turn drives the driven gear 100 to rotate and rotates the rotating rod 200. With the cooperation of the limiting ridge 210 and the limiting groove 3301, the rotating rod 200 drives the slide tube 330 to rotate, which in turn drives the upper drive bevel gear 310 to rotate. The upper drive bevel gear 310 drives the upper driven bevel gear 320 to rotate, and the left and right upper driven bevel gears 320 respectively drive the left and right transmission rods 340 to rotate in opposite directions. The two lower driving bevel gears 32 rotate, which in turn drive the two lower driven bevel gears 33 to rotate. These driven bevel gears 33, via a rotating shaft 34, drive the two clamping plates 36 to rotate in the same direction. The clamping plates 36 cause the hub to flip. Through the engagement of the locking ridge 341 and the locking groove 353, the hub flips 180°. The rotating shaft 34 then drives the stabilizing disc 35 to rotate 180°, aligning the upper and lower stabilizing rods 351 with the upper and lower fixing holes 311. The stabilizing disc 35 is then moved towards the downward displacement box 31, causing the stabilizing rods 351 to insert into the fixing holes 311. This locks the stabilizing disc 35 back into place and fixes the clamping plates 36 via the rotating shaft 34, preventing the hub from flipping. Then, the outer hub bearing is press-fitted. The stabilizing tube 37 provides central support to the rotating shaft 34, reducing cantilever deflection and improving clamping rigidity. When the lifting push rod 5 extends or retracts, it drives the mounting box 2 to move vertically along the stabilizer 12, thereby adjusting the tilting height. The entire structure moves in a coordinated manner and is precisely positioned, meeting the needs of continuous multi-station operation.

[0035] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A hub bearing assembly and positioning auxiliary structure, characterized in that, It includes a bracket (1), a mounting box (2), a flip clamping mechanism (3), and a flip transmission mechanism that can drive the flip clamping mechanism (3) to flip. The mounting box (2) slides vertically within the bracket (1). Two flip clamping mechanisms (3) and two flip transmission mechanisms are symmetrically arranged on the left and right sides. Both flip transmission mechanisms are installed within the mounting box (2). The two flip clamping mechanisms (3) are located below the mounting box (2), and the flip clamping mechanisms (3) and the flip transmission mechanisms are vertically aligned. It also includes a flip drive mechanism capable of driving the two flip transmission mechanisms to operate and a bidirectional displacement drive mechanism (7) capable of driving the two flip transmission mechanisms to move in opposite directions. The flip drive mechanism is installed in the mounting box (2) and the bidirectional displacement drive mechanism (7) is located on the mounting box (2). A lifting push rod (5) is installed on the upper part of the bracket (1), and the output end of the lifting push rod (5) is fixed to the upper surface of the mounting box (2).

2. The wheel hub bearing assembly and positioning auxiliary structure according to claim 1, characterized in that, The bracket (1) includes a support plate (11) and a stabilizer (12); Two support plates (11) and two stabilizers (12) are provided. The stabilizers (12) are inverted U-shaped. The two stabilizers (12) are arranged in parallel front to back. The two support plates (11) are respectively fixed to the lower ends of the left and right vertical parts of the two stabilizers (12). A connecting block (13) is fixed between the horizontal parts of the two stabilizers (12), and the fixed end of the lifting push rod (5) is fixedly connected to the connecting block (13); An inverted U-shaped drive frame (4) is fixed on the upper surface of the mounting box (2), and the output end of the lifting push rod (5) is fixedly connected to the horizontal part of the drive frame (4).

3. The wheel hub bearing assembly and positioning auxiliary structure according to claim 2, characterized in that, An L-shaped lifting frame (6) slides vertically between the vertical parts of the two front and rear stabilizing frames (12). The mounting box (2) is fixed between the vertical parts of the two lifting frames (6). The two flipping clamping mechanisms (3) slide on the upper surface of the horizontal parts of the two lifting frames (6).

4. The wheel hub bearing assembly and positioning auxiliary structure according to claim 3, characterized in that, The top and bottom walls of the mounting box (2) are respectively provided with two left-right symmetrical upper sliding holes (21) and two left-right symmetrical lower sliding holes (22), and the upper sliding holes (21) and the lower sliding holes (22) are vertically opposite each other.

5. The wheel hub bearing assembly and positioning auxiliary structure according to claim 4, characterized in that, The flipping transmission mechanism includes an upper displacement box (300), an upper driving bevel gear (310), an upper driven bevel gear (320), a slide tube (330), and a transmission rod (340); The upper and lower parts of the upper displacement box (300) slide in the upper sliding hole (21) and the lower sliding hole (22) respectively. The sliding tube (330) is arranged in the upper displacement box (300), and the two ends of the sliding tube (330) are rotatably connected to the left and right side walls of the upper displacement box (300) respectively. The upper driving bevel gear (310) and the upper driven bevel gear (320) are both disposed inside the upper displacement box (300). The upper driving bevel gear (310) is sleeved outside the slide tube (330) and is fixed to the slide tube (330). The upper end of the transmission rod (340) passes through the bottom wall of the upper displacement box (300) and enters the upper displacement box (300). The transmission rod (340) rotates relative to the bottom wall of the upper displacement box (300). The upper driven bevel gear (320) is fixedly connected to the upper end of the transmission rod (340). The upper driving bevel gear (310) meshes with the upper driven bevel gear (320). The inner wall of the slide tube (330) is provided with a limiting groove (3301).

6. The wheel hub bearing assembly and positioning auxiliary structure according to claim 5, characterized in that, The bidirectional displacement drive mechanism (7) includes a bidirectional displacement drive motor (71), a bidirectional lead screw (72), and two drive blocks (73); The two drive blocks (73) are respectively fixed on the upper surfaces of the left and right upper displacement boxes (300); The left and right sections of the bidirectional lead screw (72) are provided with threads with opposite directions of rotation, and the bidirectional lead screw (72) passes through the lower part of the drive frame (4); The bidirectional displacement drive motor (71) is installed on the upper vertical part of one of the lifting frames (6), one end of the bidirectional lead screw (72) is fixedly connected to the output end of the bidirectional displacement drive motor (71), and the other end of the bidirectional lead screw (72) is rotatably connected to the upper vertical part of the other lifting frame (6).

7. The wheel hub bearing assembly and positioning auxiliary structure according to claim 5, characterized in that, The flipping drive mechanism includes a flipping drive motor (8), a driving gear (9), a driven gear (100), and a rotating rod (200); The reversing drive motor (8) is installed inside the mounting box (2), and the drive gear (9) is fixedly connected to the output end of the reversing drive motor (8); The rotating rod (200) rotates inside the mounting box (2), the driven gear (100) is fixed in the middle of the rotating rod (200), and the driven gear (100) meshes with the driving gear (9); The rotating rod (200) has a limiting edge (210) on its circumferential side. The two sliding tubes (330) are respectively sleeved on the left and right side sections of the rotating rod (200). The limiting edge (210) slides in the limiting groove (3301).

8. The wheel hub bearing assembly and positioning auxiliary structure according to claim 5, characterized in that, The flipping clamping mechanism (3) includes a lower displacement box (31), a lower driving bevel gear (32), a lower driven bevel gear (33), a rotating shaft (34), and an arc-shaped clamping plate (36); The lower displacement box (31) slides on the upper surface of the horizontal part of the lifting frame (6), and the lower driving bevel gear (32) and the lower driven bevel gear (33) are both arranged in the lower displacement box (31); The lower end of the transmission rod (340) extends into the interior of the lower displacement box (31) through the top wall and rotates relative to the top wall of the lower displacement box (31). A stabilizing tube (37) is fixed in the middle of the opposite sidewalls of the two lower displacement boxes (31), and the rotating shaft (34) passes through the stabilizing tube (37), and the part of the rotating shaft (34) located in the stabilizing tube (37) rotates relative to the stabilizing tube (37); The lower driving bevel gear (32) is fixedly connected to the lower end of the transmission rod (340), the lower driven bevel gear (33) is fixedly connected to the rotating shaft (34), the lower driving bevel gear (32) meshes with the lower driven bevel gear (33), and the clamping plate (36) is fixed to the outer end of the rotating shaft (34).

9. The wheel hub bearing assembly and positioning auxiliary structure according to claim 8, characterized in that, Two fixing holes (311) are respectively opened on the opposite walls of the two lower displacement boxes (31), and the two fixing holes (311) are respectively located on the upper and lower sides of the stabilizing tube (37); The rotating shaft (34) has a retaining ridge (341) on the peripheral side of the portion outside the stabilizing tube (37).

10. The wheel hub bearing assembly and positioning auxiliary structure according to claim 9, characterized in that, The flipping clamping mechanism (3) further includes a stabilizing disk (35). A through hole (352) is provided at the axis of the stabilizing disk (35). A slot (353) is provided on the wall of the through hole (352). The stabilizing disk (35) is sleeved on the outside of the rotating shaft (34) through the through hole (352), and the locking edge (341) is inserted into the slot (353). The stabilizing disk (35) slides relative to the rotating shaft (34). The stabilizing plate (35) has two stabilizing rods (351) on its side near the lower displacement box (31). The two stabilizing rods (351) are located on the upper and lower sides of the through hole (352) respectively, and the positions of the stabilizing rods (351) correspond to the positions of the fixing holes (311).

Images