Pressing rivet device for entering pipe column of automobile steering device bearing

Abstract

A rivet pressing device for an automobile steering gear bearing inlet pipe column relates to the technical field of automobile pipe column processing equipment and comprises a press-fitting table, a sliding plate is horizontally and slidably arranged at the top of the press-fitting table, a fixed L-shaped plate is detachably arranged at the end of the sliding plate, a lifting plate is vertically and slidably arranged at the end of the fixed L-shaped plate, and a press-fitting column is fixedly arranged at the bottom of the lifting plate. A press-riveting head is fixedly connected to the bottom of the press-fitting column, a plurality of sliding grooves are formed in the outer wall of the press-riveting head in the circumferential direction and penetrate through the press-riveting head downwards, pressing plates arranged in the sliding grooves in a sliding mode in the radial direction of the press-riveting head are arranged in the sliding grooves, the bottom ends of the pressing plates are flush with the bottom end of the press-riveting head, and the tops and the side walls of the pressing plates make friction contact with the press-riveting head. A clamping plate is fixedly arranged at the bottom of the pressing plate, and the outer end face of the pressing plate and the outer end face of the clamping plate are arc-shaped faces. The device solves the problem that when an existing automobile pipe column bearing rivet pressing device is used for machining a pipe column, the cooperative machining performance of the press fitting-necking process is poor; the process of turning, aligning and adjusting the pipe column is complicated; and the synchronism of press-fitting preparation procedures is poor.

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, which supports the steering wheel and the steering shaft, universal transmission shaft and other parts connected to the steering wheel, so as to transmit the steering operation to the steering gear. During the whole steering process, the column plays a stable 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 bearings to reduce the steering wheel rotation resistance and ensure smooth steering. The steering shaft usually adopts a universal joint or a spline connection to transmit torque. The bearing is firmly pressed into the inner wall of the column by the press riveting device. The outer ring of the bearing is in interference fit with the column 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: First, the press-fitting and necking process has poor coordination. Specifically, when pressing the bearing into the column, the bearing and the column are in interference fit. During the pressing process, the inner wall of the column will be expanded. 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.

[0005] Second, the pipe column overturning 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 manually overturned to adjust the position of the other end for secondary pressing. This overturning alignment process involves fixture loosening, column orientation adjustment and repositioning. Therefore, the column overturning alignment adjustment process is complicated and affects the processing efficiency.

[0006] Third, the press-fitting preparation process has poor synchronization. Specifically, in the bearing pressing process, the worker needs to first adjust the position of the column by overturning 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.

[0007] As can be seen from the above, the prior art has obvious inconvenience and defects in actual use, and needs to be improved. SUMMARY

[0008] In view of the defects in the prior art, the technical problem to be solved by the present application is to provide a press riveting device for a pipe column of a bearing of an automobile steering gear, which has good cooperativeness in a press fitting-necking process, realizes the cooperativeness of the bearing press fitting and the pipe column necking process, and can simultaneously complete the necking forming of the end of the pipe column while the bearing is pressed into the pipe column by the press riveting head, thereby not only ensuring the interference fit and axial positioning of the bearing, but also enabling the press riveting head to quickly exit after the process is completed, thereby completely solving the efficiency bottleneck caused by the traditional step-by-step processing. The device can automatically adjust the port of the pipe column without disassembling the pipe column, greatly simplifies the pipe column overturning alignment adjustment process, and improves the processing efficiency. The device has good synchronism in the press fitting preparation process, and the pipe column can be simultaneously placed with the bearing during the preparation adjustment or replacement, so that the pipe column adjustment or replacement and the bearing feeding time completely overlap, eliminating the waiting interval in the traditional process and improving the overall processing efficiency.

[0009] To solve the above problems, the present application provides the following technical scheme: A press riveting device for a pipe column of a bearing of an automobile steering gear, comprising a press fitting table, wherein a sliding plate is horizontally slidably arranged on the top of the press fitting table, a fixed L-shaped plate is detachably arranged at the end of the sliding plate, a lifting plate is vertically slidably arranged at the end of the fixed L-shaped plate, a press fitting column is fixedly arranged at the bottom of the lifting plate, a press riveting head is fixedly connected to the bottom of the press fitting column, a plurality of sliding grooves are circumferentially arranged on the outer wall of the press riveting head, the sliding grooves penetrate the press riveting head downward, a plurality of pressing plates are slidably arranged in the sliding grooves in the radial direction of the press riveting head, the bottom end of each pressing plate is flush with the bottom end of the press riveting head, the top and side wall of each pressing plate are in frictional contact with the press riveting head, the plurality of pressing plates are synchronously slidably arranged, a clamping plate is fixedly arranged at the bottom of each pressing plate, the outer end surface of each of the pressing plate and the clamping plate is an arc surface, a press fitting plate is vertically slidably arranged on the outer wall of the press fitting column, a necking die is detachably arranged at the bottom of the press fitting plate, the press riveting head is located inside the necking die, a placing groove for placing the bearing is arranged on the top of the press fitting table, an avoiding groove penetrates the top of the press fitting table, and a clamping mechanism for clamping and overturning the pipe column is arranged at the bottom of the press fitting table.

[0010] As an optimized scheme, the clamping mechanism comprises a fixed U-shaped plate detachably connected with the press fitting table, a rotating rectangular frame is rotatably arranged on the inner wall of the fixed U-shaped plate, two clamping blocks facing each other are arranged in the rotating rectangular frame, the clamping blocks are horizontally slidably connected with the rotating rectangular frame, the end of each clamping block facing the other is provided with an arc surface, a bearing plate is vertically slidably arranged on the lower inner wall of the fixed U-shaped plate, and a positioning cylinder is fixedly arranged at the top of the bearing plate.

[0011] As an optimized scheme, the bottom of the press-in head is vertically lifted with a lifting block, the bottom of the lifting block is provided with a plurality of detachable driving wedge blocks, the end of the clamping plate is detachably provided with a driven wedge block, and the inclined end of the driving wedge block is slidably connected with the inclined end of the driven wedge block.

[0012] As an optimized scheme, the bottom of the press-in head is provided with a circular groove for avoiding the lifting block, the inside of the press-in column is provided with an internal groove, the top of the press-in head is fixedly provided with an internal telescopic cylinder in the area inside the internal groove, and the telescopic end of the internal telescopic cylinder passes through the press-in head and the circular groove and is fixedly connected with the lifting block.

[0013] As an optimized scheme, the inner wall of the sliding groove is fixedly provided with a plurality of fixed rods, and one end of the fixed rod extends into the press plate and is slidably connected with the press plate.

[0014] As an optimized scheme, the top of the press-in table is fixedly provided with a plurality of control telescopic cylinders, and the telescopic end of the control telescopic cylinder is fixedly connected with the sliding plate.

[0015] As an optimized scheme, the inner top of the fixed L-shaped plate is fixedly provided with a plurality of driving telescopic cylinders, the telescopic end of the driving telescopic cylinder is fixedly connected with the lifting plate, the bottom of the lifting plate is fixedly provided with a plurality of control telescopic cylinders, and the telescopic end of the control telescopic cylinder is fixedly connected with the press-in plate.

[0016] As an optimized scheme, the end of the fixed U-shaped plate is fixedly provided with a turnover motor, the output shaft of the turnover motor passes through the fixed U-shaped plate and is fixedly connected with the rotating rectangular frame.

[0017] As an optimized scheme, the opposite inner walls of the rotating rectangular frame are fixedly provided with clamping telescopic cylinders, and the telescopic end of the clamping telescopic cylinder is fixedly connected with the clamping block.

[0018] As an optimized scheme, the inner bottom of the fixed U-shaped plate is fixedly provided with an electric control telescopic cylinder, and the telescopic end of the electric control telescopic cylinder is fixedly connected with the bearing plate.

[0019] Compared with the prior art, the beneficial effects of the present application are: 1. When the bearing is pressed into the pipe column, 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 pipe column and clamp the pipe column, the driving telescopic cylinder drives the lifting plate and the press-in plate to move downward, thereby driving the press-in head, the bearing and the necking die to move downward (as shown in Figure 8 2. Under the pushing of the press-in head, the bearing is pressed into the pipe column and expands the pipe column, at this time, the pipe column port enters the inside of the necking die and is not in contact with the variable diameter area (as shown in Figure 9As shown), the lifting plate continues to slide down until the bearing is pressed to the specified depth, in the process, the upper port of the pipe column enters the necking die reducing area, and then is necked (as shown Figure 10 As shown), then the built-in telescopic cylinder drives the lifting block and the driving wedge-shaped block to move upwards, under the cooperation of the driven wedge-shaped block, the clamping plate and the pressing plate shrink inward until the pressing plate enters the sliding groove, the control telescopic cylinder drives the pressing plate to slide down, and then drives the necking die to move down and neck the pipe column to form the mechanical limit (as shown Figure 11 As shown), then the pressing plate and the lifting plate reset in turn, the press-in head moves out of the pipe column, thus completing the pressing of the bearing at one end of the pipe column. The pressing-necking process of the device has good collaborative processing, realizes the collaborative processing of bearing pressing and pipe column necking process, and can simultaneously complete the necking forming of the end of the pipe column while the bearing is pressed into the pipe column by the press-in head. Not only does it ensure the interference fit and axial positioning of the bearing, but also the press-in head can quickly exit after the process is completed, completely solving the efficiency bottleneck caused by traditional step-by-step processing; 2、When the pipe column is turned over, the electric control telescopic cylinder drives the bearing plate to slide down, the positioning cylinder separates from the pipe column to avoid, the turning motor drives the rotating rectangular frame and the pipe column to rotate 180°, then the bearing plate resets and abuts against the port of the pipe column, the pipe column is inserted into the positioning cylinder, and the above-mentioned pressing-necking process is repeated to press the bearing at the other end of the pipe column. After the bearings are pressed at both ends of the pipe column, the clamping telescopic cylinder drives the clamping block to move horizontally, thereby releasing the restriction on the pipe column, and the processed pipe column is taken out and replaced with the pipe column to be processed. The device can automatically turn over and adjust the port of the pipe column without disassembling the pipe column, greatly simplifies the pipe column turning over and alignment adjustment process, and improves the processing efficiency; 3、In the process of pressing the bearing, the worker places the bearing to be pressed in the placing groove, the control telescopic cylinder retracts during the turning or replacing of the pipe column, until the sliding plate slides to the preset position, then the driving telescopic cylinder drives the lifting plate to slide down, until the press-in head abuts against the top of the bearing inner ring, the built-in telescopic cylinder drives the lifting block to move down, and then drives the pressing plate and the clamping plate to move outward, until the clamping plate abuts against the bearing inner ring, and then clamps the bearing. At this time, the pressing plate is in contact with the top of the bearing outer ring, then the lifting plate and the sliding plate reset in turn, and the feeding of the bearing is completed. The device has good synchronicity in the pressing preparation process, and the pipe column can complete the preparation of the bearing during the preparation adjustment or replacement, so that the pipe column adjustment or replacement and the bearing feeding time completely overlap, eliminating the waiting interval in the traditional process and improving the overall processing efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed in the description of the embodiments or the prior art. 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 according to the actual proportions.

[0021] Figure 1 is a structural schematic diagram of the present application; Figure 2 is a structural schematic diagram of the end of the sliding plate of the present application; Figure 3 is a structural schematic diagram of the inside of the necking die of the present application; Figure 4 is a structural schematic diagram of the inside of the press-in head of the present application; Figure 5 is a structural schematic diagram of the press plate and the clamping plate of the present application; Figure 6 is a structural schematic diagram of the clamping mechanism of the present application; Figure 7 is a structural schematic diagram of the inside of the rotating rectangular frame of the present application; Figure 8 is a structural schematic diagram of the bearing when not pressed into the pipe column of the present application; Figure 9 is a structural schematic diagram of the bearing when just pressed into the pipe column of the present application; Figure 10 is a structural schematic diagram of the bearing when pressed to a preset depth of the present application; Figure 11 is a structural schematic diagram of the pipe column when necking is completed of the present application; Figure 12 is a structural schematic diagram of the pipe column in different processing states of the present application.

[0022] In the drawings: 1-pressing station; 2-avoidance groove; 3-pipe column; 4-placing groove; 5-lifting plate; 6-fixed L-shaped plate; 7-sliding plate; 8-positioning telescopic cylinder; 9-clamping mechanism; 10-bearing; 11-necking die; 12-pressing plate; 13-control telescopic cylinder; 14-driving telescopic cylinder; 15-press-in head; 16-pressing column; 17-clamping plate; 18-fixed rod; 19-pressing plate; 20-sliding groove; 21-embedded groove; 22-embedded telescopic cylinder; 23-driven wedge block; 24-driving wedge block; 25-lifting block; 26-circular groove; 27-electric control telescopic cylinder; 28-positioning cylinder; 29-rotating rectangular frame; 30-clamping block; 31-fixed U-shaped plate; 32-bearing plate; 33-overturning motor; 34-clamping telescopic cylinder. DETAILED DESCRIPTION

[0023] The embodiments of the technical solutions of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, but cannot limit the protection scope of the present application.

[0024] As shown in Figures 1 to 12 A kind of press riveting device for automobile steering gear bearing inlet pipe column, including press station 1, the top horizontal sliding of press station 1 is equipped with sliding plate 7, the end of sliding plate 7 is detachably equipped with fixed L-shaped plate 6, the end of fixed L-shaped plate 6 is vertically slidably equipped with lifting plate 5, lifting plate 5 bottom is fixedly equipped with press column 16, the bottom of press column 16 is fixedly connected with press riveting head 15, the outer wall of press riveting head 15 is equipped with several sliding grooves 20 in the circumferential direction, sliding groove 20 is downwardly through press riveting head 15, sliding groove 20 is equipped with the press plate 19 that is slidably arranged along the radial direction of press riveting head 15, the bottom end of press plate 19 is flush with the bottom end of press riveting head 15, the top and sidewall of press plate 19 are all in frictional contact with press riveting head 15, several press plates 19 are synchronously slidably 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 column 16 is sleeved with the press plate 12 that is vertically slidably arranged, the bottom of press plate 12 is detachably equipped with necking die 11, press riveting head 15 is located inside necking die 11, the top of press station 1 is equipped with the placement groove 4 for placing bearing 10, the top of press station 1 is equipped with the avoiding groove 2, the bottom of press station 1 is equipped with the clamping mechanism 9 for clamping and overturning pipe column 3.

[0025] Clamping mechanism 9 includes fixed U-shaped plate 31 detachably connected with press station 1, the inner wall of fixed U-shaped plate 31 is rotatably equipped with rotating rectangular frame 29, the inside of rotating rectangular frame 29 is equipped with two facing clamping blocks 30, clamping block 30 is slidably connected with rotating rectangular frame 29, the end of two clamping blocks 30 is equipped with arc surface, the inner wall of fixed U-shaped plate 31 is vertically slidably equipped with bearing plate 32, bearing plate 32 top is fixedly equipped with positioning cylinder 28.

[0026] The bottom of press riveting head 15 is vertically equipped with lifting block 25, the bottom of lifting block 25 is equipped with several detachably arranged driving wedge blocks 24, the end of clamping plate 17 is detachably equipped with driven wedge block 23, the inclined end of driving wedge block 24 is slidably connected with the inclined end of driven wedge block 23.

[0027] The bottom of press riveting head 15 is equipped with circular groove 26 for avoiding lifting block 25, the inside of press column 16 is equipped with built-in groove 21, the area of the top of press riveting head 15 located inside built-in groove 21 is fixedly equipped with built-in telescopic cylinder 22, the telescopic end of built-in telescopic cylinder 22 passes through press riveting head 15 and circular groove 26 and is fixedly connected with lifting block 25.

[0028] The inner wall of sliding groove 20 is fixedly equipped with several fixed rods 18, one end of fixed rod 18 extends to the inside of press plate 19 and is slidably connected with press plate 19.

[0029] The top of the pressing station 1 is fixedly provided with a plurality of control telescopic cylinders 8, the telescopic ends of which are fixedly connected with the sliding plate 7.

[0030] The inner top of the fixed L-shaped plate 6 is fixedly provided with a plurality of driving telescopic cylinders 14, the telescopic ends of which are fixedly connected with the lifting plate 5, and the bottom of the lifting plate 5 is fixedly provided with a plurality of control telescopic cylinders 13, the telescopic ends of which are fixedly connected with the pressing plate 12.

[0031] The end of the fixed U-shaped plate 31 is fixedly provided with a turnover motor 33, the output shaft of which penetrates through the fixed U-shaped plate 31 and is fixedly connected with the rotating rectangular frame 29.

[0032] The opposite inner walls of the rotating rectangular frame 29 are both fixedly provided with clamping telescopic cylinders 34, the telescopic ends of which are fixedly connected with the clamping blocks 30.

[0033] The inner bottom of the fixed U-shaped plate 31 is fixedly provided with an electric control telescopic cylinder 27, the telescopic end of which is fixedly connected with the bearing plate 32.

[0034] The variable-diameter area of the necking die 11 is located above the pressing plate 19.

[0035] The diameter of the press-in head 15 is smaller than the inner diameter of the pipe column 3, and the pressing plate 19 can contact the outer ring of the bearing 10 when it is extended but does not exceed the outer ring of the bearing 10.

[0036] The working principle of the device is as follows: When the bearing 10 is pressed into the pipe 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 all abut against the pipe column 3 and clamp the pipe column 3, the driving telescopic cylinder 14 drives the lifting plate 5 and the pressing plate 12 to move downward, thereby driving the press-in head 15, the bearing 10 and the necking die 11 to move downward (as shown in Figure 8 Under the pushing of the press-in head 15, the bearing 10 is pressed into the inside of the pipe column 3 and expands the pipe column 3, at this time, the port of the pipe column 3 enters the inside of the necking die 11 and does not contact the variable-diameter area (as shown in Figure 9 The lifting plate 5 continues to slide downward until the bearing 10 is pressed to the specified depth, in this process, the upper port of the pipe column 3 enters the variable-diameter area of the necking die 11 and is necked (as shown in Figure 10 After that, the built-in telescopic cylinder 22 drives the lifting block 25 and the driving wedge block 24 to move upward, under the cooperation of the driven wedge block 23, the clamping plate 17 and the pressing plate 19 are inwards retracted until the pressing plate 19 enters the sliding groove 20, the control telescopic cylinder 13 drives the pressing plate 12 to slide downward, thereby driving the necking die 11 to move downward and necking the pipe column 3 to form mechanical limiting (as shown in Figure 11After the bearing 10 is pressed into the pipe column 3, the press head 15 is quickly withdrawn, and the bearing 10 pressing and the pipe column 3 necking process are completed, the device has good processability, and the bearing 10 pressing and the pipe column 3 necking process are realized, the necking of the end of the pipe column 3 is completed at the same time when the bearing 10 is pressed into the pipe column 3 by the press head 15, not only the interference fit and axial positioning of the bearing 10 are ensured, but also the press head 15 can be quickly withdrawn after the process is completed, and the efficiency bottleneck caused by the traditional step-by-step processing is completely solved; When the pipe column 3 is turned over, the electric control telescopic cylinder 27 drives the bearing plate 32 to slide downward, the positioning cylinder 28 is separated from the pipe column 3 to avoid, the turning motor 33 drives the rotating rectangular frame 29 and the pipe column 3 to rotate 180°, then the bearing plate 32 is reset and abuts against the port of the pipe column 3, the pipe column 3 is inserted into the positioning cylinder 28, and the above-mentioned pressing and necking process is repeated, and then the bearing 10 is pressed on the other end of the pipe column 3, after the bearings 10 are pressed on both ends of the pipe column 3, the clamping telescopic cylinder 34 drives the clamping block 30 to move horizontally, and then the restriction on the pipe column 3 is released, and the processed pipe column 3 is taken out and replaced with the pipe column 3 to be processed, the device can automatically turn over and adjust the port of the pipe column 3 without disassembling the pipe column 3, greatly simplifies the turning over, positioning and adjusting process of the pipe column 3, and improves the processing efficiency; In the process of pressing the bearing 10, the worker places the bearing 10 to be pressed in the placing groove 4, the control telescopic cylinder 8 is retracted until the sliding plate 7 slides to the preset position during the turning over or replacement of the pipe column 3, then the driving telescopic cylinder 14 drives the lifting plate 5 to slide downward until the press 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, and then drives the pressing plate 19 and the clamping plate 17 to move outward until the clamping plate 17 abuts against the inner ring of the bearing 10, and then the bearing 10 is clamped, at this time, the pressing plate 19 abuts against the top of the outer ring of the bearing 10, then the lifting plate 5 and the sliding plate 7 are reset in sequence, and the feeding of the bearing 10 is completed, the device has good synchronism in the pressing preparation process, and the pipe column 3 can complete the preparation of the bearing 10 at the same time during the preparation adjustment or replacement, so that the adjustment or replacement of the pipe column 3 and the feeding of the bearing 10 are completely overlapped, the waiting interval in the traditional process is eliminated, and the overall processing efficiency is improved.

[0037] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the description of the present application.

Claims

1. A press-fitting device for an automotive steering gear bearing inlet column, characterized in that: The device includes a pressing table (1), on which a sliding plate (7) is horizontally slidably mounted on the top. A fixed L-shaped plate (6) is detachably mounted at the end of the sliding plate (7). A lifting plate (5) is vertically slidably mounted at the end of the fixed L-shaped plate (6). A pressing column (16) is fixedly mounted at the bottom of the lifting plate (5). A rivet head (15) is fixedly connected to the bottom of the pressing column (16). A plurality of sliding grooves (20) are provided along the circumferential direction on the outer wall of the rivet head (15). The sliding grooves (20) penetrate the rivet head (15) downward. A pressure plate (19) is provided in the sliding groove (20) and slidably mounted radially along the rivet head (15). The bottom end of the pressure plate (19) is flush with the bottom end of the rivet head (15). The top end of the pressure plate (19) and the bottom end of the rivet head (15) are flush. The side walls are in frictional contact with the riveting head (15), and several of the pressure plates (19) are synchronously slidably arranged. The bottom of the pressure plate (19) is fixedly provided with a clamping plate (17). The outer end faces of the pressure plate (19) and the clamping plate (17) are arc-shaped. The outer wall of the pressing column (16) is fitted with a vertically sliding pressing plate (12). The bottom of the pressing plate (12) is detachably provided with a reducing mold (11). The riveting head (15) is located inside the reducing mold (11). The top of the pressing table (1) is provided with a placement groove (4) for placing the bearing (10). The top of the pressing table (1) is provided with a clearance groove (2). The bottom of the pressing table (1) is provided with a clamping mechanism (9) for clamping and flipping the column (3). The clamping mechanism (9) includes a fixed U-shaped plate (31) detachably connected to the pressing table (1). The upper inner wall of the fixed U-shaped plate (31) is rotatably provided with a rotating rectangular frame (29). The rotating rectangular frame (29) is provided with two clamping blocks (30) arranged in opposite directions. The clamping blocks (30) are horizontally slidably connected to the rotating rectangular frame (29). The two clamping blocks (30) are provided with arc-shaped surfaces at their opposite ends. The lower inner wall of the fixed U-shaped plate (31) is vertically slidably provided with a bearing plate (32). The top of the bearing plate (32) is fixedly provided with a positioning cylinder (28). The bottom of the rivet head (15) is provided with a vertically lifting block (25), and the bottom of the lifting block (25) is provided with a number of 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).

2. The pressing and riveting device for the automotive steering gear bearing inlet column according to claim 1, characterized in that: 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-fit column (16) is provided with an internal groove (21). The area at the top of the rivet head (15) located inside the internal groove (21) is fixedly provided with an internal telescopic cylinder (22). 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).

3. The riveting device for the automotive steering gear bearing inlet column according to claim 1, characterized in that: The inner wall of the slide groove (20) is fixed with several fixing rods (18), one end of which extends into the pressure plate (19) and is slidably connected to the pressure plate (19).

4. The riveting device for the automotive steering gear bearing inlet column according to claim 1, characterized in that: The top of the pressing table (1) is fixedly provided with several position control telescopic cylinders (8), and the telescopic end of the position control telescopic cylinder (8) is fixedly connected to the sliding plate (7).

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

6. A press-fitting device for an automotive steering gear bearing inlet column according to claim 1, characterized in that: The fixed U-shaped plate (31) is fixedly provided with a flip motor (33) at its end. 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).

7. The pressing and riveting device for the automotive steering gear bearing inlet column according to claim 1, characterized in that: The inner walls of the rotating rectangular frame (29) are all fixedly provided with clamping telescopic cylinders (34), and the telescopic ends of the clamping telescopic cylinders (34) are fixedly connected to the clamping block (30).

8. A press-fitting device for an automotive steering gear bearing inlet column according to claim 1, characterized in that: 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).

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