Axial positioning mechanism for shaft parts of steering system

Abstract

The utility model relates to the technical field of steering systems, in particular to a shaft part axial positioning mechanism for a steering system. A shaft part axial positioning mechanism for a steering system is characterized in that the top of a rack is connected with a rotary table, and a plurality of air cylinder assemblies are evenly distributed on the periphery of the rotary table; one side of the rotary table is connected with a first shaft clamping point finding mechanism and a second shaft clamping point finding mechanism through a connecting and adjusting mechanism, and the rotary table on one side of the connecting and adjusting mechanism is connected with a second shaft tool remodeling mechanism; a laser displacement sensor and a camera mechanism are connected to the portion, below the first shaft clamping point finding mechanism and the second shaft clamping point finding mechanism, of the rack. Compared with the prior art, the shaft parts can be clamped by the follow-up clamping jaw on the rotary table or the assembly line to flow; after the blind hole of the shaft part is moved to the laser displacement sensor, the shaft part is rotated, the laser displacement sensor can recognize the blind hole of the shaft part, and therefore angle positioning of the shaft part is achieved.

Description

Technical Field

[0001] This utility model relates to the field of steering system technology, specifically to an axial positioning mechanism for shaft parts in a steering system. Background Technology

[0002] The existing process for angular positioning of shaft parts requires alignment with blind holes on the shaft before assembly. However, since the angles of shaft parts are random during loading, it is impossible to statistically determine the loading angle. Therefore, the process of aligning blind holes is done manually. The most obvious drawback of manual loading is its low efficiency and inability to guarantee accuracy, which fails to meet the customer's high-efficiency requirements.

[0003] Therefore, there is an urgent need to develop a set of equipment to solve the problem of uncertain angles of shaft parts and ensure that the angles of shaft parts are accurate and unique during assembly. Summary of the Invention

[0004] To overcome the shortcomings of the prior art, this utility model provides an axial positioning mechanism for shaft parts in steering systems, which solves the problem of uncertain angles of shaft parts and ensures that the angles of shaft parts are accurate and unique during assembly.

[0005] To achieve the above objectives, an axial positioning mechanism for shaft parts in a steering system is designed, comprising a frame and a turntable. The mechanism is characterized in that: the top of the frame is connected to the turntable, and a plurality of cylinder assemblies are evenly distributed on the outer circumference of the turntable; a first shaft clamping and finding mechanism and a second shaft clamping and finding mechanism are connected to one side of the turntable via a connecting adjustment mechanism; a second shaft tooling changing mechanism is connected to the turntable on the side of the connecting adjustment mechanism; and a laser displacement sensor and a camera mechanism are connected to the frame located below the first shaft clamping and finding mechanism and the second shaft clamping and finding mechanism.

[0006] The first axis is the Pinion axis, and the second axis is the Shaft axis.

[0007] The cylinder assembly includes a first-axis follower gripper unit, a second-axis follower gripper unit, and an air supply unit. The first-axis follower gripper unit and the second-axis follower gripper unit are respectively connected to the turntable via gripper fixing seats. An air supply unit is provided on the rear side of the first-axis follower gripper unit and the second-axis follower gripper unit, and the air supply unit is connected to the air inlet of the first-axis follower gripper unit and the second-axis follower gripper unit respectively via air passages.

[0008] The connection adjustment mechanism includes a connection adjustment bracket, a grinding disc, a first shaft connection plate, a second shaft connection plate, and adjustment units. The connection adjustment bracket has an L-shaped structure. The bottom of the connection adjustment bracket is connected to the turntable, and the top of the connection adjustment bracket is connected to the first shaft connection plate and the second shaft connection plate through several adjustment units. A grinding disc is provided between the first shaft connection plate, the second shaft connection plate, and the top of the connection adjustment bracket.

[0009] The first-axis clamping and finding mechanism has the same structure as the second-axis clamping and finding mechanism. The first-axis clamping and finding mechanism includes a servo module, a servo motor, a reducer, a coupling, an air intake machining part, a vent shaft, a sealing ring, a vent block, a gripper cylinder, a detection disc, a tooth recognition fixture, grippers, a vertical block machining part, and a disc detection sensor. The back of the servo module is connected to the first-axis connecting plate, and the front of the servo module is connected to the vent shaft through a shaft connecting seat. The top of the vent shaft is connected to one end of the reducer through a coupling, and the other end of the reducer is connected to the servo motor. The bottom of the vent shaft is connected to one end of the gripper cylinder, and the other end of the gripper cylinder is connected to the gripper. A tooth recognition fixture is located in the middle of the gripper.

[0010] Vertical processing parts are provided on the front and rear sides of the gripper cylinder. Each vertical processing part includes a spring column and a linear bearing. The top of the spring column is connected to the shaft connecting seat, and the bottom of the spring column is connected to one end of the spring through the linear bearing. The other end of the spring is connected to the detection disk. A disk detection sensor is connected to one side of the detection disk through a sensor connecting plate.

[0011] An air inlet is connected to the upper part of the ventilation shaft via an air intake machining part, and a sealing ring is provided between the air intake machining part and the upper part of the ventilation shaft; a ventilation pad is provided between the ventilation shaft and the gripper cylinder.

[0012] The laser displacement sensor and camera mechanism includes a support frame, a platform, laser displacement sensors, and a barcode scanner. The support frame has an L-shaped structure, with one end connected to the frame and the top of the support frame connected to a base plate. Several laser displacement sensors are mounted on the base plate, and a barcode scanner is located in front of the laser displacement sensors.

[0013] The second-axis tooling change mechanism includes a tooling change mechanism bracket, a rotary cylinder, a quick-change tooling connecting plate, and quick-change tooling. One end of the tooling change mechanism bracket is connected to the connecting adjustment mechanism below the second-axis clamping and finding mechanism. The other end of the tooling change mechanism bracket is connected to one end of the rotary cylinder. The other end of the rotary cylinder is connected to the quick-change tooling connecting plate, and several quick-change toolings are connected to the quick-change tooling connecting plate.

[0014] The quick-change tooling includes a positioning pull pin, a locking block, a second axis tooling, a tooling positioning pin, and a flexible pin. The tooling positioning pin is connected to the quick-change tooling connecting plate. The tooling positioning pin is equipped with a second axis tooling. Locking blocks are located on the left and right sides of the second axis tooling. The positioning pull pin is connected to the quick-change tooling connecting plate located outside the locking blocks. The upper part of the locking block is a C-shaped groove, and the inner side of the C-shaped groove is equipped with a flexible pin.

[0015] Compared with the prior art, this utility model provides an axial positioning mechanism for shaft parts in a steering system. The shaft parts can be moved around on a turntable or assembly line by being held by a follower gripper. After the shaft parts are moved to the angle positioning station, the servo module drives the pick-up gripper and the pick-up fixture (the pick-up fixture can be a change-up fixture) to pick up the shaft parts. The blind hole of the shaft parts is moved to the laser displacement sensor and then the shaft parts are rotated. The laser displacement sensor will identify the blind hole of the shaft parts, thereby angularly positioning the shaft parts. At this time, the shaft parts can be offset to the required angle and then returned to the follower gripper for the next assembly step. Attached Figure Description

[0016] Figure 1 This is a three-dimensional view of the structure of this utility model.

[0017] Figure 2 This is a schematic diagram showing the connection between the transfer platform and the cylinder assembly of this utility model.

[0018] Figure 3 This is an exploded view of the connecting and adjusting mechanism in this utility model.

[0019] Figure 4 This is a front view of the connecting and adjusting mechanism structure in this utility model.

[0020] Figure 5 This is a side view of the connecting and adjusting mechanism structure in this utility model.

[0021] Figure 6 This is a three-dimensional view of the first axis clamping and finding mechanism of this utility model.

[0022] Figure 7 This is a side view of the structure of the first axis clamping and finding mechanism of this utility model.

[0023] Figure 8 for Figure 7 Sectional view along line AA.

[0024] Figure 9 This is a sectional view of the machined block part.

[0025] Figure 10 This is a three-dimensional view of the laser displacement sensor and camera mechanism in this utility model.

[0026] Figure 11This is a front view of the laser displacement sensor and camera mechanism structure in this utility model.

[0027] Figure 12 This is a top view of the laser displacement sensor and camera mechanism structure in this utility model.

[0028] Figure 13 This is a three-dimensional view of the second-axis tooling change mechanism in this utility model.

[0029] Figure 14 This is a schematic diagram of a quick-change tooling structure.

[0030] Figure 15 This is a diagram showing the open state of the quick-change tooling.

[0031] Figure 16 This is a diagram showing the locking state of the quick-change tooling. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings.

[0033] like Figures 1 to 14 As shown, the top of the frame 8 is connected to the turntable 9, and several cylinder assemblies 1 are evenly distributed on the outer circumference of the turntable 9; one side of the turntable 9 is connected to the first axis clamping and finding mechanism 3 and the second axis clamping and finding mechanism 4 through the connecting adjustment mechanism 2, and the turntable 9 on the side of the connecting adjustment mechanism 2 is connected to the second axis tooling changing mechanism 6; the frame 8 below the first axis clamping and finding mechanism 3 and the second axis clamping and finding mechanism 4 is connected to the laser displacement sensor and camera mechanism 5.

[0034] The first axis is the Pinion axis, and the second axis is the Shaft axis.

[0035] The cylinder assembly 1 includes a first-axis follower gripper unit, a second-axis follower gripper unit, and an air supply unit. The first-axis follower gripper unit 1-1 and the second-axis follower gripper unit 1-2 are respectively connected to the turntable 9 through gripper fixing seats 1-4. An air supply unit 1-3 is provided on the rear side of the first-axis follower gripper unit 1-1 and the second-axis follower gripper unit 1-2, and the air supply unit 1-3 is connected to the air inlet of the first-axis follower gripper unit 1-1 and the second-axis follower gripper unit 1-2 through air passages.

[0036] The rotary table 9 can serve as several workstations or be arranged in an assembly line style. The first-axis follower gripper unit 1-1 and the second-axis follower gripper unit 1-2 can rotate with the rotary table 9 to the next workstation; the air supply unit 1-3 can extend to supply air to the follower grippers of the first-axis follower gripper unit 1-1 and the second-axis follower gripper unit 1-2 so that the follower grippers can open and clamp; when the rotary table 9 rotates, the air supply unit 1-3 needs to retract so as not to affect the rotation.

[0037] The connecting adjustment mechanism 2 includes a connecting adjustment bracket, a grinding disc, a first shaft connecting plate, a second shaft connecting plate, and an adjustment unit. The connecting adjustment bracket 2-1 has an L-shaped structure. The bottom of the connecting adjustment bracket 2-1 is connected to the turntable 9. The top of the connecting adjustment bracket 2-1 is connected to the first shaft connecting plate 2-3 and the second shaft connecting plate 2-4 through several adjustment units 2-5. A grinding disc 2-2 is provided between the first shaft connecting plate 2-3, the second shaft connecting plate 2-4 and the top of the connecting adjustment bracket 2-1.

[0038] The connecting adjustment mechanism 2 is used to connect the turntable 9 with the first axis clamping and finding mechanism 3 and the second axis clamping and finding mechanism 4; the first axis clamping and finding mechanism 3 is installed on the first axis connecting plate 2-3; the second axis clamping and finding mechanism 4 is installed on the second axis connecting plate 2-4; through the grinding disc 2-2 and the adjustment unit 2-5, the first axis clamping and finding mechanism 3 and the second axis clamping and finding mechanism 4 are respectively aligned with the first axis following gripper unit 1-1 and the second axis following gripper unit 1-2 of the turntable 9.

[0039] The first-axis clamping and finding mechanism 3 and the second-axis clamping and finding mechanism 4 have the same structure. The first-axis clamping and finding mechanism 3 includes a servo module, a servo motor, a reducer, a coupling, an air intake machining part, a vent shaft, a sealing ring, a vent block, a gripper cylinder, a detection disc, a tooth recognition fixture, grippers, a vertical block machining part, and a disc detection sensor. The back of the servo module 3-1 is connected to the first-axis connecting plate 2-3. The front of the servo module 3-1 is connected to the vent shaft 3-6 through the shaft connecting seat 3-18. The top of the vent shaft 3-6 is connected to one end of the reducer 3-3 through the coupling 3-4. The other end of the reducer 3-3 is connected to the servo motor 3-2. The bottom of the vent shaft 3-6 is connected to one end of the gripper cylinder 3-9. The other end of the gripper cylinder 3-9 is connected to the gripper 3-15. A tooth recognition fixture 3-14 is provided in the middle of the gripper 3-15.

[0040] Vertical processing parts 3-16 are respectively provided on the front and rear sides of the gripper cylinder 3-9. The vertical processing parts 3-16 include spring column 3-10 and linear bearing 3-11. The top of the spring column 3-10 is connected to the shaft connecting seat 3-18. The bottom of the spring column 3-10 is connected to one end of spring 3-12 through linear bearing 3-11. The other end of spring 3-12 is connected to detection disk 3-13. A disk detection sensor 3-17 is connected to one side of detection disk 3-13 through sensor connecting plate.

[0041] An air inlet is connected to the upper part of the ventilation shaft 3-6 via an air intake machining part 3-5, and a sealing ring 3-7 is provided between the air intake machining part 3-5 and the upper part of the ventilation shaft 3-6; a ventilation pad 3-8 is provided between the ventilation shaft 3-6 and the gripper cylinder 3-9.

[0042] Servo module 3-1 is mounted on the first axis connecting plate 2-3; servo motor 3-2 needs to drive reducer 3-3, coupling 3-4, vent shaft 3-6, vent block 3-8, gripper cylinder 3-9, spring column 3-10, linear bearing 3-11, spring 3-12, detection disc 3-13, gear recognition fixture 3-14, gripper 3-15, and workpiece 3-16 to rotate; servo module 3-1 and servo motor 3-2 are at the calibrated zero point position. The position should not affect the rotation or movement of the turntable 9 or the production line; the air intake processing part 3-5, the ventilation shaft 3-6 and the sealing ring 3-7 can ensure that the gripper cylinder 3-9 is always in communication with compressed air when rotating; before operation, compressed air enters the gripper cylinder 3-9 through the air intake processing part 3-5, the ventilation shaft 3-6 and the ventilation pad 3-8, so that the gripper cylinder 3-9 is in the open state, and the disc detection sensor 3-17 can detect the detection disc 3-13 when the spring 3-12 is in the original position. In operation, when the first axis follower gripper unit 1-1 moves the Pinion axis to the working position, the servo module 3-1 drives the first axis gripping and finding mechanism 3 to move downward to the Slide axis position. At the Slide axis position, the detection disk 3-13 needs to be placed against the upper end face of the Pinion axis, and the spring 3-12 is compressed so that the disk detection sensor 3-17 cannot detect the disk 3-13. The servo motor 3-2 drives the tooth recognition fixture 3-14 to rotate. When the tooth recognition fixture 3-14 recognizes the Pinion axis, the spring 3-12 returns to its original position, driving the disk 3-13 to move. At this time, the disk detection sensor 3-17 detects the disk 3-13 again, and considers the tooth recognition to be successful.

[0043] The working mode of the second-axis gripping and finding mechanism 4 is the same as that of the first-axis gripping and finding mechanism 3. In operation, when the second-axis accompanying gripper unit 1-2 moves the Shaft axis to the working position, the Slide servo module drives the second-axis gripping and finding mechanism 4 downwards to the Slide axis position. At the Slide axis position, the tooling change detection disc needs to be placed against the upper surface of the Shaft axis, and the spring should be compressed so that the disc detection sensor cannot detect the disc. The servo motor drives the tooth recognition tooling to rotate. When the tooth recognition tooling recognizes the Shaft axis, the spring returns to its original position, driving the disc to move. At this time, the disc detection sensor detects the disc again, indicating successful tooth recognition.

[0044] The laser displacement sensor and camera mechanism 5 includes a support frame, a platform, a laser displacement sensor, and a barcode scanner. The support frame 5-1 has an L-shaped structure. One end of the support frame 5-1 is connected to the frame 8. The top of the support frame 5-1 is connected to the base plate 5-1. Several laser displacement sensors 5-3 are provided on the base plate 5-1. A barcode scanner 5-4 is provided in front of the laser displacement sensors 5-3.

[0045] The mechanism bracket 5-1 is mounted on the turntable 9. When the first axis clamping and finding mechanism 3 and the second axis clamping and finding mechanism 4 bring the product to the Slide axis position, the laser beam of the laser displacement sensor 5-3 is at the same height as the center of the blind hole of the Pinion and Shaft.

[0046] The second-axis tooling change mechanism 6 includes a tooling change mechanism bracket, a rotary cylinder, a quick-change tooling connecting plate, and quick-change tooling. One end of the tooling change mechanism bracket 6-1 is connected to the connecting adjustment mechanism 2 below the second-axis clamping and finding mechanism 4. The other end of the tooling change mechanism bracket 6-1 is connected to one end of the rotary cylinder 6-2. The other end of the rotary cylinder 6-2 is connected to the quick-change tooling connecting plate 6-8. Several quick-change toolings are connected to the quick-change tooling connecting plate 6-8.

[0047] The quick-change tooling includes a positioning pull pin, a locking block, a second-axis tooling, a tooling positioning pin, and a flexible pin. The tooling positioning pin 6-6 is connected to the quick-change tooling connecting plate 6-8. The tooling positioning pin 6-6 is equipped with a second-axis tooling 6-5. Locking blocks 6-4 are respectively located on the left and right sides of the second-axis tooling 6-5. The positioning pull pin 6-3 is connected to the quick-change tooling connecting plate 6-8 located outside the locking block 6-4. The upper part of the locking block 6-4 is a C-shaped groove, and the inner side of the C-shaped groove is equipped with a flexible pin 6-7.

[0048] The second-axis tooling change mechanism 6 can include several different second-axis toolings 6-5, the types of which can vary depending on the product's interface. The tooling positioning pin 6-6 positions the axis of the Shaft axis tooling; two locking blocks 6-4 and a spring-loaded pin 6-7 hold the second-axis tooling 6-5 in place. This part enables automatic tooling change of the second-axis tooling 6-5. During operation, the tooling-free area of ​​the second-axis tooling change mechanism 6 rotates below the second-axis clamping and finding mechanism 4. When a tooling change is required, the corresponding tooling changes below the second-axis clamping and finding mechanism 4 for the change.

[0049] like Figure 15As shown, when the second-axis tooling 6-5 is picked up, it is in the open state, without the second-axis tooling 6-5 attached, and the servo motor drives it to rotate to a specific angle; the second-axis tooling 6-5 of the second-axis tooling changing mechanism 6 is rotated by the rotary cylinder to below the second-axis tooling 6-5 seat; the servo module drives the second-axis tooling 6-5 to move downward, so that the cylinder of the second-axis tooling 6-5 enters the long groove of the tooling changing detection disc, the spring is compressed, and at the same time the head of the positioning pin enters the pin hole of the locking block; the servo motor drives the second-axis tooling 6-5 to rotate in a specified direction and at a specified angle, the positioning pin fixes the locking block, at this time only the tooling changing detection disc rotates, so that the second-axis tooling 6-5 seat is converted to the locked state, the ball head of the elastic pin is inserted into the long groove of the tooling changing detection disc to stabilize the second-axis tooling 6-5, and at the same time the cylinder of the second-axis tooling 6-5 disengages from the clamping block and the elastic pin; the servo module returns to the zero position. Complete the picking action of the second axis tool 6-5.

[0050] like Figure 16 As shown, when the second-axis tooling 6-5 is placed, the second-axis tooling 6-5 seat is in a locked state, with the second-axis tooling 6-5 attached, and the servo motor drives it to rotate to a specific angle; the second-axis tooling 6-5 placement seat of the second-axis tooling changing mechanism 6 is rotated to below the second-axis tooling 6-5 seat by a rotary cylinder; the servo module drives the second-axis tooling 6-5 seat to move downwards, so that the head of the positioning pin enters the pin hole of the locking block, and the spring is compressed; the servo motor drives the second-axis tooling 6-5 to rotate in a specified direction and at a specified angle, and the positioning pin fixes the locking block. At this time, only the tooling changing detection disc rotates, so that the second-axis tooling 6-5 is converted to an open state. The ball head of the elastic pin is inserted into the ball groove of the tooling changing detection disc to play a certain stabilizing role, and at the same time, the cylinder of the second-axis tooling 6-5 is held by the locking block and the elastic pin; the servo module returns to the zero position. The placement action of the second-axis tooling 6-5 is completed.

Claims

1. An axial positioning mechanism for shaft parts in a steering system, comprising a frame and a turntable, characterized in that: The top of the frame (8) is connected to the turntable (9), and several cylinder assemblies (1) are evenly distributed on the outer circumference of the turntable (9); the first axis clamping and finding mechanism (3) and the second axis clamping and finding mechanism (4) are connected to one side of the turntable (9) through the connecting adjustment mechanism (2), and the second axis tooling changing mechanism (6) is connected to the turntable (9) on the side of the connecting adjustment mechanism (2); the laser displacement sensor and camera mechanism (5) are connected to the frame (8) below the first axis clamping and finding mechanism (3) and the second axis clamping and finding mechanism (4).

2. The axial positioning mechanism for shaft parts in a steering system according to claim 1, characterized in that: The first axis is the Pinion axis, and the second axis is the Shaft axis.

3. The axial positioning mechanism for shaft parts in a steering system according to claim 1, characterized in that: The cylinder assembly (1) includes a first-axis follower gripper unit, a second-axis follower gripper unit, and an air supply unit. The first-axis follower gripper unit (1-1) and the second-axis follower gripper unit (1-2) are respectively connected to the turntable (9) through gripper fixing seats (1-4). An air supply unit (1-3) is provided on the rear side of the first-axis follower gripper unit (1-1) and the second-axis follower gripper unit (1-2), and the air supply unit (1-3) is connected to the air inlet of the first-axis follower gripper unit (1-1) and the second-axis follower gripper unit (1-2) through an air passage.

4. The axial positioning mechanism for shaft parts in a steering system according to claim 1, characterized in that: The connection adjustment mechanism (2) includes a connection adjustment bracket, a grinding disc, a first shaft connection plate, a second shaft connection plate, and an adjustment unit. The connection adjustment bracket (2-1) has an L-shaped structure. The bottom of the connection adjustment bracket (2-1) is connected to the turntable (9). The top of the connection adjustment bracket (2-1) is connected to the first shaft connection plate (2-3) and the second shaft connection plate (2-4) through several adjustment units (2-5). A grinding disc (2-2) is provided between the top of the first shaft connection plate (2-3), the second shaft connection plate (2-4) and the connection adjustment bracket (2-1).

5. An axial positioning mechanism for shaft parts in a steering system according to claim 1, characterized in that: The first axis clamping and finding mechanism (3) has the same structure as the second axis clamping and finding mechanism (4). The first axis clamping and finding mechanism (3) includes a servo module, a servo motor, a reducer, a coupling, an air intake machining part, a vent shaft, a sealing ring, a vent block, a gripper cylinder, a detection disc, a tooth recognition tool, grippers, a vertical block machining part, and a disc detection sensor. The back of the servo module (3-1) is connected to the first axis connecting plate (2-3), and the front of the servo module (3-1) is connected to the first axis connecting plate (2-3). The shaft connecting seat (3-18) is connected to the ventilation shaft (3-6). The top of the ventilation shaft (3-6) is connected to one end of the reducer (3-3) through the coupling (3-4). The other end of the reducer (3-3) is connected to the servo motor (3-2). The bottom of the ventilation shaft (3-6) is connected to one end of the gripper cylinder (3-9). The other end of the gripper cylinder (3-9) is connected to the gripper (3-15). A tooth recognition fixture (3-14) is provided in the middle of the gripper (3-15).

6. An axial positioning mechanism for shaft parts in a steering system according to claim 5, characterized in that: A vertical processing component (3-16) is provided on the front and rear sides of the gripper cylinder (3-9). The vertical processing component (3-16) includes a spring column (3-10) and a linear bearing (3-11). The top of the spring column (3-10) is connected to the shaft connecting seat (3-18). The bottom of the spring column (3-10) is connected to one end of the spring (3-12) through the linear bearing (3-11). The other end of the spring (3-12) is connected to the detection disk (3-13). A disk detection sensor (3-17) is connected to one side of the detection disk (3-13) through a sensor connecting plate.

7. An axial positioning mechanism for shaft parts in a steering system according to claim 5, characterized in that: An air inlet is connected to the upper part of the ventilation shaft (3-6) via an air intake machining part (3-5), and a sealing ring (3-7) is provided between the air intake machining part (3-5) and the upper part of the ventilation shaft (3-6); a ventilation pad (3-8) is provided between the ventilation shaft (3-6) and the gripper cylinder (3-9).

8. An axial positioning mechanism for shaft parts in a steering system according to claim 1, characterized in that: The laser displacement sensor and camera mechanism (5) includes a support frame, a platform, a laser displacement sensor, and a barcode scanner. The support frame (5-1) has an L-shaped structure. One end of the support frame (5-1) is connected to the frame (8). The top of the support frame (5-1) is connected to the base plate (5-2). Several laser displacement sensors (5-3) are provided on the base plate (5-2). A barcode scanner (5-4) is provided in front of the laser displacement sensor (5-3).

9. An axial positioning mechanism for shaft parts in a steering system according to claim 1, characterized in that: The second axis tooling change mechanism (6) includes a tooling change mechanism bracket, a rotary cylinder, a quick-change tooling connecting plate, and quick-change tooling. One end of the tooling change mechanism bracket (6-1) is connected to the connecting adjustment mechanism (2) below the second axis clamping and finding mechanism (4). The other end of the tooling change mechanism bracket (6-1) is connected to one end of the rotary cylinder (6-2). The other end of the rotary cylinder (6-2) is connected to the quick-change tooling connecting plate (6-8). Several quick-change toolings are connected on the quick-change tooling connecting plate (6-8).

10. An axial positioning mechanism for shaft parts in a steering system according to claim 9, characterized in that: The quick-change tooling includes a positioning pull pin, a locking block, a second axis tooling, a tooling positioning pin, and a flexible pin. The tooling positioning pin (6-6) is connected to the quick-change tooling connecting plate (6-8). The tooling positioning pin (6-6) is provided with a second axis tooling (6-5). Locking blocks (6-4) are provided on the left and right sides of the second axis tooling (6-5). The positioning pull pin (6-3) is connected to the quick-change tooling connecting plate (6-8) located outside the locking block (6-4). The upper part of the locking block (6-4) is a C-shaped groove, and the inner side of the C-shaped groove is provided with a flexible pin (6-7).

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