A press-fit device for automotive steering gear bearing inlet column

Abstract

A riveting device for automotive steering gear bearings entering the column, relating to the technical field of automotive column processing equipment, includes a pressing table. A sliding plate is horizontally slidable on the top of the pressing table. A fixed L-shaped plate is detachably mounted at the end of the sliding plate. A lifting plate is vertically slidable at the end of the fixed L-shaped plate. A pressing column is fixedly mounted at the bottom of the lifting plate. A riveting head is fixedly connected to the bottom of the pressing column. Several grooves are circumferentially arranged on the outer wall of the riveting head, extending downwards through the riveting head. A pressure plate is radially slidable within the grooves, with its bottom end flush with the bottom end of the riveting head. The top and side walls of the pressure plate are in frictional contact with the riveting head. Several pressure plates are synchronously slidable. A clamping plate is fixedly mounted at the bottom of the pressure plate. The outer end faces of both the pressure plate and the clamping plate are arc-shaped. This invention solves the problems of poor collaborative processing of the pressing-reduction process during column processing, complex column flipping and alignment adjustment processes, and poor synchronization of the pressing preparation process in existing automotive column bearing riveting devices.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile column processing equipment, in particular to a press riveting device for automobile steering gear bearing into a column. BACKGROUND

[0002] The automobile column is a very important part of the automobile steering system, its role is to support the steering wheel and the steering shaft, universal transmission shaft and other connected steering wheel, in order to pass the steering operation to the steering gear. In the whole steering process, the column plays a stable driving transmission role for the driver to rotate the vehicle.

[0003] The steering shaft is installed inside the column, and the steering shaft rotates in the column when the automobile is steering. The steering shaft is supported by the bearing to reduce the steering wheel rotation resistance and ensure smooth steering. The steering shaft usually adopts universal joint or spline connection to transmit torque, and the bearing is firmly pressed into the inner wall of the column by the press riveting device. The bearing outer ring and the column adopt interference fit to enhance the structural stability.

[0004] The existing automobile column bearing press riveting device gradually exposes the deficiencies in the process of use, mainly in the following aspects:

[0005] First, the press-fitting and necking process has poor coordination. Specifically, when pressing the bearing into the column, the bearing and the column adopt interference fit, and the bearing will expand the inner wall of the column during the pressing process. In order to ensure the axial fixation of the bearing, the column needs to be necked above the bearing to form a mechanical limit. However, if the necking is performed at the same time as the bearing pressing, the press riveting head will be stuck inside due to the deformation of the column necking and cannot be withdrawn. Therefore, the press-fitting and necking processes cannot be synchronized and can only be processed step by step, which not only increases the process complexity, but also reduces the processing efficiency.

[0006] Second, the pipe column turning alignment adjustment process is complex. Specifically, both ends of the steering shaft need to be supported by bearings, so the inner walls of both ends of the column need to be pressed into bearings. After one end is completed, the tooling needs to be released and the column needs to be turned over manually to adjust the position of the other end for secondary pressing. This turning alignment process involves fixture loosening, column orientation adjustment and repositioning. Therefore, the column turning alignment adjustment process is complicated and affects the processing efficiency.

[0007] Third, the press-fitting preparation process has poor synchronization. Specifically, in the bearing pressing process, the worker needs to first turn over and adjust the position of the column or replace the column to be processed, and then place the bearing to be pressed into the column port and perform the pressing operation by the press riveting head. The preparation of the column and the preparation of the bearing cannot be synchronized, so the press-fitting preparation process has poor synchronization, resulting in low overall processing efficiency.

[0008] In summary, the existing technology has obvious inconvenience and defects in actual use, so it is necessary to improve. Summary of the Invention

[0009] To address the shortcomings of existing technologies, the technical problem to be solved by this invention is to provide a press-fitting device for automotive steering gear bearings into the column. This device has good collaborative processing of the press-fitting and shrinking processes, realizing the collaborative processing of bearing press-fitting and column shrinking processes. While the press-fitting head presses the bearing into the column, the shrinking and forming of the column end can be completed simultaneously. This not only ensures the interference fit and axial limit of the bearing, but also allows the press-fitting head to quickly withdraw after the process is completed, completely solving the efficiency bottleneck caused by traditional step-by-step processing.

[0010] This device can automatically adjust the port of the tubing without disassembling the tubing, which greatly simplifies the tubing flipping and alignment adjustment process and improves processing efficiency.

[0011] The device has good synchronization of the pressing preparation process. The bearing can be prepared and placed at the same time during the preparation, adjustment or replacement of the tubing column. This ensures that the adjustment or replacement of the tubing column and the bearing loading time completely overlap, eliminating the waiting interval in the traditional process and improving the overall processing efficiency.

[0012] To address the above problems, the present invention provides the following technical solution:

[0013] A press-fitting device for an automotive steering gear bearing insertion column includes a press-fitting table. A sliding plate is horizontally slidable at the top of the press-fitting table. A fixed L-shaped plate is detachably mounted at the end of the sliding plate. A lifting plate is vertically slidable at the end of the fixed L-shaped plate. A press-fitting column is fixedly mounted at the bottom of the lifting plate. A press-fitting head is fixedly connected to the bottom of the press-fitting column. The outer wall of the press-fitting head has several circumferentially oriented grooves that penetrate downwards through the press-fitting head. A pressure plate is provided within the grooves and slidably arranged radially along the press-fitting head. The bottom end of the pressure plate is flush with the bottom end of the press-fitting head. The top and side walls of the pressure plate are in frictional contact with the riveting head. Several pressure plates are synchronously slidably arranged. A clamping plate is fixedly provided at the bottom of the pressure plate. The outer end faces of the pressure plate and the clamping plate are arc-shaped. A vertically slidable pressure plate is fitted on the outer wall of the pressure column. A reducing mold is detachably provided at the bottom of the pressure plate. The riveting head is located inside the reducing mold. A placement groove for placing bearings is provided at the top of the pressure table. An avoidance groove is provided through the top of the pressure table. A clamping mechanism for clamping and flipping the column is provided at the bottom of the pressure table.

[0014] As an optimized solution, the clamping mechanism includes a fixed U-shaped plate detachably connected to the pressing table. A rotating rectangular frame is rotatably provided on the inner wall of the fixed U-shaped plate. Two clamping blocks are arranged facing each other in the rotating rectangular frame. The clamping blocks are horizontally slidably connected to the rotating rectangular frame. The two clamping blocks have arc-shaped surfaces at their facing ends. A bearing plate is vertically slidably provided on the lower inner wall of the fixed U-shaped plate. A positioning cylinder is fixedly provided on the top of the bearing plate.

[0015] As an optimized solution, the bottom of the riveting head is provided with a vertically lifting block, the bottom of the lifting block is provided with several detachable driving wedge blocks, the end of the clamping plate is provided with a detachable driven wedge block, and the inclined end of the driving wedge block is slidably connected to the inclined end of the driven wedge block.

[0016] As an optimized solution, the bottom of the pressing head is provided with a circular groove to avoid the lifting block, the inside of the pressing column is provided with a built-in groove, and the top of the pressing head is fixedly provided with a built-in telescopic cylinder in the area inside the built-in groove. The telescopic end of the built-in telescopic cylinder passes through the pressing head and the circular groove and is fixedly connected to the lifting block.

[0017] As an optimized solution, a number of fixing rods are fixedly provided on the inner wall of the slide groove, and one end of the fixing rod extends into the pressure plate and is slidably connected to the pressure plate.

[0018] As an optimized solution, a number of position control telescopic cylinders are fixedly provided on the top of the pressing table, and the telescopic ends of the position control telescopic cylinders are fixedly connected to the sliding plate.

[0019] As an optimized solution, a number of drive telescopic cylinders are fixedly installed at the top of the fixed L-shaped plate, and the telescopic ends of the drive telescopic cylinders are fixedly connected to the lifting plate. A number of control telescopic cylinders are fixedly installed at the bottom of the lifting plate, and the telescopic ends of the control telescopic cylinders are fixedly connected to the pressing plate.

[0020] As an optimized solution, a flip motor is fixedly provided at the end of the fixed U-shaped plate, and the output shaft of the flip motor passes through the fixed U-shaped plate and is fixedly connected to the rotating rectangular frame.

[0021] As an optimized solution, clamping telescopic cylinders are fixedly provided on the relative inner walls of the rotating rectangular frame, and the telescopic ends of the clamping telescopic cylinders are fixedly connected to the clamping blocks.

[0022] As an optimized solution, an electrically controlled telescopic cylinder is fixedly installed at the bottom of the fixed U-shaped plate, and the telescopic end of the electrically controlled telescopic cylinder is fixedly connected to the bearing plate.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] 1. When pressing the bearing into the tubing, the clamping plate abuts against the inner wall of the bearing and clamps the bearing. The bearing plate and the two clamping blocks abut against the tubing and clamp the tubing. The drive telescopic cylinder moves the lifting plate and the pressing plate downwards, which in turn moves the riveting head, the bearing, and the necking die downwards (e.g., Figure 8 As shown), under the push of the riveting head, the bearing is pressed into the inside of the tube column, expanding the tube column. At this time, the tube column end enters the cavity of the necking die but does not contact the diameter change area (as shown). Figure 9As shown), the lifting plate continues to slide downwards until the bearing is pressed to the specified depth. During this process, the upper end of the tubing enters the diameter reduction area of ​​the necking die, and is subsequently necked (as shown). Figure 10 (As shown), then the built-in telescopic cylinder drives the lifting block and the driving wedge block to move upward. With the cooperation of the driven wedge block, the clamping plate and the pressure plate retract inward until the pressure plate enters the slide groove. The telescopic cylinder is then controlled to drive the pressing plate to slide downward, thereby driving the reducing mold to move downward and reduce the diameter of the tube column to form a mechanical limit (as shown). Figure 11 As shown in the figure, the pressing plate and the lifting plate are then reset one after another, and the pressing head is removed from the tube column. This completes the pressing of the bearing at one end of the tube column. The pressing-reducing process of this device has good collaborative processing, realizing the collaborative processing of the bearing pressing and the tube column reducing process. While the pressing head presses the bearing into the tube column, the reducing forming of the end of the tube column can be completed simultaneously. This not only ensures the interference fit and axial limit of the bearing, but also allows the pressing head to quickly withdraw after the process is completed, completely solving the efficiency bottleneck caused by traditional step-by-step processing.

[0025] 2. When flipping the tube column, the electrically controlled telescopic cylinder drives the bearing plate to slide downward, the positioning cylinder separates from the tube column to avoid it, the flipping motor drives the rotating rectangular frame and the tube column to rotate 180°, then the bearing plate resets and abuts against the tube column end, the tube column is inserted into the positioning cylinder, and the above pressing-and-narrowing process is repeated, and then the bearing is pressed into the other end of the tube column. After the bearings are pressed into both ends of the tube column, the clamping telescopic cylinder drives the clamping block to move horizontally, thereby releasing the restriction on the tube column, the processed tube column is taken out and replaced with the tube column to be processed. This device can automatically flip and adjust the end of the tube column without disassembling the tube column, which greatly simplifies the tube column flipping and alignment adjustment process and improves processing efficiency.

[0026] 3. During the press-fitting of bearings, the operator places the bearing to be press-fitted in the placement groove. As the tubing column is rotated or replaced, the telescopic cylinder retracts until the sliding plate slides to the preset position. Then, the telescopic cylinder drives the lifting plate to slide downwards until the pressing head abuts against the top of the bearing's inner ring. The built-in telescopic cylinder drives the lifting block to move downwards, which in turn drives the pressure plate and clamping plate to move outwards until the clamping plate abuts against the bearing's inner ring, thus clamping the bearing. At this point, the pressure plate contacts the top of the bearing's outer ring. Afterwards, the lifting plate and sliding plate reset sequentially, completing the bearing loading. This device has good synchronization of the press-fitting preparation process. The preparation and placement of the bearing can be completed simultaneously during the tubing column's adjustment or replacement process, ensuring that the tubing column adjustment or replacement time completely overlaps with the bearing loading time. This eliminates the waiting interval in traditional processes and improves the overall processing efficiency. Attached Figure Description

[0027] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0028] Figure 1 This is a schematic diagram of the structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the structure of the end of the sliding plate of the present invention;

[0030] Figure 3 This is a schematic diagram of the internal structure of the necking mold of the present invention;

[0031] Figure 4 This is a schematic diagram of the internal structure of the riveting head of the present invention;

[0032] Figure 5 This is a schematic diagram of the structure of the pressure plate and clamping plate of the present invention;

[0033] Figure 6 This is a schematic diagram of the clamping mechanism of the present invention;

[0034] Figure 7 This is a schematic diagram of the internal structure of the rotating rectangular frame of the present invention;

[0035] Figure 8 This is a schematic diagram of the structure of the present invention when the bearing is not pressed into the tubular column;

[0036] Figure 9 This is a schematic diagram of the structure of the bearing of the present invention when it is just pressed into the tubular column;

[0037] Figure 10 This is a schematic diagram of the structure of the bearing of the present invention when it is pressed into a preset depth;

[0038] Figure 11 This is a schematic diagram of the structure of the tubing of the present invention when the neck is narrowed;

[0039] Figure 12 This is a schematic diagram of the column structure under different processing conditions of the present invention.

[0040] In the diagram: 1-Pressure fitting table; 2-Avoidance groove; 3-Pipe column; 4-Placement groove; 5-Lifting plate; 6-Fixed L-shaped plate; 7-Sliding plate; 8-Control telescopic cylinder; 9-Clamping mechanism; 10-Bearing; 11-Narrowing mold; 12-Pressure fitting plate; 13-Control telescopic cylinder; 14-Drive telescopic cylinder; 15-Riveting head; 16-Pressure fitting column; 17-Clamping plate; 18-Fixing rod; 19-Pressure plate; 20-Slide groove; 21-Built-in groove; 22-Built-in telescopic cylinder; 23-Driven wedge block; 24-Drive wedge block; 25-Lifting block; 26-Circular groove; 27-Electrically controlled telescopic cylinder; 28-Positioning cylinder; 29-Rotating rectangular frame; 30-Clamping block; 31-Fixed U-shaped plate; 32-Bearing plate; 33-Tilting motor; 34-Clamping telescopic cylinder. Detailed Implementation

[0041] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0042] like Figures 1 to 12 As shown, a riveting device for a steering gear bearing insert column includes a pressing table 1. A sliding plate 7 is horizontally slidable on the top of the pressing table 1. A fixed L-shaped plate 6 is detachably provided at the end of the sliding plate 7. A lifting plate 5 is vertically slidable at the end of the fixed L-shaped plate 6. A pressing column 16 is fixedly provided at the bottom of the lifting plate 5. A riveting head 15 is fixedly connected to the bottom of the pressing column 16. A plurality of sliding grooves 20 are provided circumferentially on the outer wall of the riveting head 15. The sliding grooves 20 penetrate downward through the riveting head 15. A pressure plate 19 is provided in the sliding groove 20 and slidably arranged radially along the riveting head 15. The bottom end of the pressure plate 19 is flush with the bottom end of the riveting head 15. The top and side walls of the pressure plate 19 are in frictional contact with the riveting head 15. Several pressure plates 19 are slidably arranged synchronously. A clamping plate 17 is fixedly provided at the bottom of the pressure plate 19. The outer end faces of the pressure plate 19 and the clamping plate 17 are arc-shaped. A vertically sliding pressure plate 12 is fitted on the outer wall of the pressure column 16. A reducing mold 11 is detachably provided at the bottom of the pressure plate 12. The riveting head 15 is located inside the reducing mold 11. The top of the pressure table 1 is provided with a placement groove 4 for placing the bearing 10. A clearance groove 2 is provided through the top of the pressure table 1. The bottom of the pressure table 1 is provided with a clamping mechanism 9 for clamping and flipping the column 3.

[0043] The clamping mechanism 9 includes a fixed U-shaped plate 31 that is detachably connected to the pressing table 1. A rotating rectangular frame 29 is rotatably provided on the inner wall of the fixed U-shaped plate 31. Two clamping blocks 30 are arranged facing each other inside the rotating rectangular frame 29. The clamping blocks 30 are horizontally slidably connected to the rotating rectangular frame 29. The two clamping blocks 30 have arc-shaped surfaces at their facing ends. A bearing plate 32 is vertically slidably provided on the inner wall of the lower part of the fixed U-shaped plate 31. A positioning cylinder 28 is fixedly provided on the top of the bearing plate 32.

[0044] The bottom of the rivet head 15 is provided with a vertically lifting block 25. The bottom of the lifting block 25 is provided with several detachable drive wedge blocks 24. The end of the clamping plate 17 is provided with a detachable driven wedge block 23. The inclined end of the drive wedge block 24 is slidably connected to the inclined end of the driven wedge block 23.

[0045] The bottom of the rivet head 15 is provided with a circular groove 26 to avoid the lifting block 25. The inside of the press column 16 is provided with an internal groove 21. The top of the rivet head 15 is provided with an internal telescopic cylinder 22 located inside the internal groove 21. The telescopic end of the internal telescopic cylinder 22 passes through the rivet head 15 and the circular groove 26 and is fixedly connected to the lifting block 25.

[0046] Several fixing rods 18 are fixedly provided on the inner wall of the slide groove 20. One end of the fixing rod 18 extends into the pressure plate 19 and is slidably connected to the pressure plate 19.

[0047] Several position control telescopic cylinders 8 are fixedly installed on the top of the pressing table 1, and the telescopic ends of the position control telescopic cylinders 8 are fixedly connected to the sliding plate 7.

[0048] Several drive telescopic cylinders 14 are fixedly installed at the top of the fixed L-shaped plate 6. The telescopic ends of the drive telescopic cylinders 14 are fixedly connected to the lifting plate 5. Several control telescopic cylinders 13 are fixedly installed at the bottom of the lifting plate 5. The telescopic ends of the control telescopic cylinders 13 are fixedly connected to the pressing plate 12.

[0049] A flip motor 33 is fixedly installed at the end of the fixed U-shaped plate 31. The output shaft of the flip motor 33 passes through the fixed U-shaped plate 31 and is fixedly connected to the rotating rectangular frame 29.

[0050] The inner walls of the rotating rectangular frame 29 are each fixedly equipped with a clamping telescopic cylinder 34, and the telescopic end of the clamping telescopic cylinder 34 is fixedly connected to the clamping block 30.

[0051] An electrically controlled telescopic cylinder 27 is fixedly installed at the bottom of the fixed U-shaped plate 31, and the telescopic end of the electrically controlled telescopic cylinder 27 is fixedly connected to the bearing plate 32.

[0052] The diameter-changing area of ​​the necking die 11 is located above the pressure plate 19.

[0053] The diameter of the press head 15 is smaller than the inner diameter of the tube column 3. When the press plate 19 extends, it can contact the outer ring of the bearing 10 but does not extend beyond the outer ring of the bearing 10.

[0054] The working principle of this device is as follows:

[0055] When pressing the bearing 10 into the tubular column 3, the clamping plate 17 abuts against the inner wall of the bearing 10 and clamps the bearing 10. The bearing plate 32 and the two clamping blocks 30 abut against the tubular column 3 and clamp the tubular column 3. The drive telescopic cylinder 14 drives the lifting plate 5 and the pressing plate 12 to move downward, thereby driving the riveting head 15, the bearing 10 and the reducing die 11 to move downward (e.g., Figure 8As shown), under the push of the riveting head 15, the bearing 10 is pressed into the tube column 3, expanding the tube column 3. At this time, the end of the tube column 3 enters the cavity of the necking die 11 and does not contact the diameter changing area (as shown). Figure 9 As shown), the lifting plate 5 continues to slide downwards until the bearing 10 is pressed to the specified depth. During this process, the upper end of the tube column 3 enters the diameter reduction area of ​​the reducing mold 11 and is subsequently reduced in diameter (as shown). Figure 10 (As shown), then the built-in telescopic cylinder 22 drives the lifting block 25 and the driving wedge block 24 to move upward. With the cooperation of the driven wedge block 23, the clamping plate 17 and the pressure plate 19 retract inward until the pressure plate 19 enters the slide groove 20. The telescopic cylinder 13 is controlled to drive the pressing plate 12 to slide downward, thereby driving the reducing mold 11 to move downward and reduce the diameter of the tube column 3 to form a mechanical limit (as shown). Figure 11 As shown), the pressing plate 12 and the lifting plate 5 are then reset one after another, and the pressing head 15 moves out of the tube column 3. Thus, the pressing of the bearing 10 at one end of the tube column 3 is completed. The device has good collaborative processing of the pressing-shrinking process, realizing the collaborative processing of the pressing of the bearing 10 and the shrinking process of the tube column 3. While the pressing head 15 presses the bearing 10 into the tube column 3, the shrinking of the end of the tube column 3 can be completed simultaneously. This not only ensures the interference fit and axial limit of the bearing 10, but also allows the pressing head 15 to quickly withdraw after the process is completed, completely solving the efficiency bottleneck caused by traditional step-by-step processing.

[0056] When the tube column 3 is flipped, the electrically controlled telescopic cylinder 27 drives the bearing plate 32 to slide downward, the positioning cylinder 28 separates from the tube column 3 to avoid it, the flipping motor 33 drives the rotating rectangular frame 29 and the tube column 3 to rotate 180°, and then the bearing plate 32 resets and abuts against the end of the tube column 3, the tube column 3 is inserted into the positioning cylinder 28, and the above pressing-and-reducing process is repeated, and then the bearing 10 is pressed into the other end of the tube column 3. After the bearings 10 are pressed into both ends of the tube column 3, the clamping telescopic cylinder 34 drives the clamping block 30 to move horizontally, thereby releasing the restriction on the tube column 3, the processed tube column 3 is taken out and replaced with the tube column 3 to be processed. This device can automatically flip and adjust the end of the tube column 3 without disassembling the tube column 3, which greatly simplifies the flipping and alignment adjustment process of the tube column 3 and improves the processing efficiency.

[0057] During the press-fitting of bearing 10, the operator places the bearing 10 to be press-fitted into the placement groove 4. During the flipping or replacement of the column 3, the telescopic end of the control cylinder 8 retracts until the sliding plate 7 slides to the preset position. Then, the telescopic cylinder 14 drives the lifting plate 5 to slide downward until the pressing head 15 abuts against the top of the inner ring of the bearing 10. The built-in telescopic cylinder 22 drives the lifting block 25 to move downward, thereby driving the pressure plate 19 and the clamping plate 17 to move outward until the clamping plate 17 abuts against the inner ring of the bearing 10, thus clamping the bearing 10. At this time, the pressure plate 19 contacts the top of the outer ring of the bearing 10. Then, the lifting plate 5 and the sliding plate 7 reset one after another, completing the loading of the bearing 10. This device has good synchronization of the press-fitting preparation process. During the preparation adjustment or replacement of the column 3, the preparation placement of the bearing 10 can be completed at the same time, so that the adjustment or replacement of the column 3 and the loading of the bearing 10 completely overlap, eliminating the waiting interval in the traditional process and improving the overall processing efficiency.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A press-riveting device for a steering knuckle bearing inlet pipe column of an automobile, characterized by: The utility model provides a press -fitting device, including press -fitting platform (1), the top horizontal sliding of press -fiting platform (1) is equipped with sliding plate (7), the end of sliding plate (7) is detachably equipped with fixed L type board (6), the end of fixed L type board (6) is vertically slidingly equipped with lifting plate (5), the bottom of lifting plate (5) is fixedly equipped with press -fitting column (16), the bottom of press -fiting column (16) is fixedly connected with press -in head (15), the outer wall of press -in head (15) is equipped with a plurality of sliding slot (20) along the circumference, and the sliding slot (20) penetrates press -in head (15) downward, the sliding slot (20) is equipped with the press plate (19) of sliding along the radial direction of press -in head (15) inside, the bottom of press plate (19) is flush with the bottom of press -in head (15), the top and the side wall of press plate (19) are all in frictional contact with press -in head (15), a plurality of press plate (19) synchronous sliding is arranged, the bottom of press plate (19) is fixedly equipped with clamping plate (17), the outer end surface of press plate (19) and clamping plate (17) is arc surface, the outer wall of press -fitting column (16) is sleeved with the press -fitting plate (12) of vertically slidingly arranged, the bottom of press -fitting plate (12) is detachably equipped with necking die (11), and press -in head (15) is located inside necking die (11), the top of press -fitting platform (1) is equipped with the placing groove (4) of bearing (10), the top of press -fitting platform (1) is equipped with the avoiding groove (2) of penetrating, the bottom of press -fitting platform (1) is equipped with the clamping mechanism (9) of being clamped and overturning to pipe column (3); The clamping mechanism (9) includes a fixed U-shaped plate (31) detachably connected with the press -fitting platform (1), a rotating rectangular frame (29) is rotatably arranged on the inner wall of the fixed U-shaped plate (31), two clamping blocks (30) are arranged in the rotating rectangular frame (29) and face each other, the clamping blocks (30) are horizontally slidably connected with the rotating rectangular frame (29), the end surfaces of the two clamping blocks (30) facing each other are arc surfaces, and a bearing plate (32) is vertically slidably arranged on the lower inner wall of the fixed U-shaped plate (31). The bottom of the press -in head (15) is vertically provided with a lifting block (25), the bottom of the lifting block (25) is provided with a plurality of detachable driving wedge blocks (24), the end of the clamping plate (17) is detachably provided with a driven wedge block (23), and the inclined surfaces of the driving wedge blocks (24) and the driven wedge block (23) are slidably connected.

2. A press-in device for steering knuckle bearing pipe column of an automobile according to claim 1, characterized in that: The bottom of the press -in head (15) is provided with a circular groove (26) for avoiding the lifting block (25), the inside of the press -fitting column (16) is provided with an internal groove (21), the area of the top of the press -in head (15) inside the internal groove (21) is fixedly provided with an internal telescopic cylinder (22), the telescopic end of the internal telescopic cylinder (22) penetrates the press -in head (15) and the circular groove (26) and is fixedly connected with the lifting block (25).

3. A press-in device for steering knuckle bearing pipe column of an automobile according to claim 1, characterized in that: The inner wall of the sliding slot (20) is fixedly provided with a plurality of fixed rods (18), one end of the fixed rod (18) extends into the press plate (19) and is slidably connected with the press plate (19).

4. A press-in device for steering knuckle bearing pipe column of an automobile according to claim 1, characterized in that: The pressing station (1) top is fixedly provided with a plurality of control position telescopic cylinders (8), the telescopic end of the control position telescopic cylinder (8) is fixedly connected with the sliding plate (7).

5. A press-in device for steering knuckle bearing pipe column of an automobile according to claim 1, characterized in that: The inner top of the fixed L-shaped plate (6) is fixedly provided with a plurality of drive telescopic cylinders (14), the telescopic end of the drive telescopic cylinder (14) is fixedly connected with the lifting plate (5), the bottom of the lifting plate (5) is fixedly provided with a plurality of control telescopic cylinders (13), the telescopic end of the control telescopic cylinder (13) is fixedly connected with the pressing plate (12).

6. A press-in device for steering knuckle bearing pipe column of an automobile according to claim 1, characterized in that: The end of the fixed U-shaped plate (31) is fixedly provided with a turnover motor (33), the output shaft of the turnover motor (33) penetrates through the fixed U-shaped plate (31) and is fixedly connected with the rotating rectangular frame (29).

7. A press-in device for steering knuckle bearing pipe column of an automobile according to claim 1, characterized in that: The opposite inner walls of the rotating rectangular frame (29) are fixedly provided with clamping telescopic cylinders (34), the telescopic end of the clamping telescopic cylinder (34) is fixedly connected with the clamping block (30).

8. A press-in device for steering knuckle bearing pipe column of an automobile according to claim 1, characterized in that: The inner bottom of the fixed U-shaped plate (31) is fixedly provided with an electric control telescopic cylinder (27), the telescopic end of the electric control telescopic cylinder (27) is fixedly connected with the bearing plate (32).

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