Detection device for swing torque of intermediate shaft
By designing a detection device for the intermediate shaft, including a floating clamping mechanism, a workpiece rotation mechanism and a rotation testing mechanism, automatic detection of the intermediate shaft swing torque is realized, the problem of low detection efficiency in the prior art is solved, the detection efficiency is improved, and the product quality is ensured.
Patent Information
- Application Number
- CN202420830525.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-04-22
AI Technical Summary
In the prior art, the intermediate shaft swing torque detection efficiency is low, which makes it difficult to detect unqualified parts in a timely manner, affecting the driving experience.
A detection device for the swing torque of the intermediate shaft is designed, including a floating clamping mechanism, a workpiece rotation mechanism and a rotation testing mechanism. Through the coordinated work of these mechanisms, the automatic detection of the swing torque of the fixed fork end and the swing fork end of the intermediate shaft is realized.
The efficiency of batch inspection is improved, and the intermediate shaft workpiece with unqualified swing torque can be detected more effectively, avoiding affecting the user's driving experience.
Smart Images
Figure CN222866095U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile component detection, in particular to a detection device for the swing torque of an intermediate shaft. Background Art
[0002] In the automobile steering system, the intermediate shaft is used to connect the steering column and the steering gear, and to carry the transmission torque inside the steering system.
[0003] During the design process of the intermediate shaft, specific requirements are made for the maximum swing torque. Once the swing torque exceeds the specified requirement, it will cause steering torque fluctuations during the driving of the car, affecting the driver's steering feel and causing customer complaints.
[0004] The swing torque of the intermediate shaft is divided into the fixed fork end and the swing fork end. Conventional projects need to be manually inspected on the testing bench, which has the disadvantages of complex operation, long time consumption and low efficiency of batch inspection. Generally, the first and last piece inspection method is adopted.
[0005] Therefore, it is necessary to design a detection device for the swing torque of the intermediate shaft to improve the efficiency of batch detection and prevent unqualified parts from leaving the production line. Summary of the invention
[0006] The utility model aims to overcome the deficiencies of the prior art and provides a detection device for the swing torque of an intermediate shaft so as to improve the efficiency of batch detection and prevent unqualified parts from flowing out of the production line.
[0007] In order to achieve the above-mentioned purpose, the utility model is a detection device for the swing torque of an intermediate shaft, comprising a floating clamping mechanism, a workpiece rotating mechanism, a rotating testing mechanism, and a frame. The workpiece rotating mechanism is installed at the end of the frame, the floating clamping mechanism is longitudinally arranged at the front side of the frame, the movable end of the workpiece rotating mechanism is connected to the connecting end of the floating clamping mechanism, the clamping end of the floating clamping mechanism clamps the shaft of the intermediate shaft workpiece, the rotating testing mechanism is transversely arranged in the middle of the frame, and the movable end of the rotating testing mechanism is connected to the swing fork of the intermediate shaft workpiece.
[0008] The workpiece rotating mechanism includes a rotating motor, a coupling, a connecting plate, and a flange. The connecting plate is fixed to the end of the frame, and a rotating motor is installed on the connecting plate. The shaft of the rotating motor and the flange are connected by a coupling, and the flange is connected to the connecting end of the floating clamping mechanism.
[0009] The floating clamping mechanism includes a clamping claw, a Schunk cylinder, a connecting block, a cylinder, a connecting rod, and a connecting seat. The connecting seat is connected to the movable end of the workpiece rotating mechanism. The connecting seat and the piston of the cylinder are connected by a connecting rod. The cylinder and the Schunk cylinder are installed on the connecting block. The clamping claw of the Schunk cylinder clamps the shaft of the intermediate shaft workpiece.
[0010] A sensor bracket is also installed on the connecting block, and a sensor is installed on the sensor bracket.
[0011] A guide rod is installed between the connecting seat and the connecting block.
[0012] The rotation testing mechanism includes a positioning rod, a swing block, a connecting piece, a torque sensor, a second coupling, and a second rotating motor. The connecting piece is fixed in the middle of the frame, the second rotating motor is installed on the connecting piece, the shaft of the second rotating motor is connected to one end of the second coupling, a torque sensor is provided between the other end of the second coupling and one end of the connecting shaft, the other end of the connecting shaft is connected to the vertical end of the swing block, a positioning rod is installed on the horizontal end of the swing block, and the positioning rod is inserted into the spline hole of the swing fork.
[0013] The swing block is L-shaped.
[0014] The intermediate shaft workpiece includes a shaft, a fixed fork, a cross member, a bearing, and a swing fork. The shaft is connected to the fixed fork, and the two ends of the fixed fork are connected to the left and right ends of the cross member, and the two ends of the swing fork are connected to the front and rear ends of the cross member by bearings.
[0015] Compared with the prior art, the utility model designs a detection device for the swing torque of the intermediate shaft, which can realize the detection of the swing torque of the fixed fork end and the swing fork end of the intermediate shaft through one installation, thereby improving the efficiency of batch detection, and can more effectively detect the intermediate shaft workpiece with unqualified swing torque, thereby avoiding affecting the user's driving experience. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the structure of the intermediate shaft workpiece.
[0017] Figure 2 It is a structural schematic diagram of the utility model.
[0018] Figure 3 It is a structural schematic diagram of the workpiece rotating mechanism of the utility model.
[0019] Figure 4 It is a structural schematic diagram of the floating clamping mechanism of the utility model.
[0020] Figure 5 It is a structural schematic diagram of the rotary testing mechanism of the utility model. DETAILED DESCRIPTION
[0021] The utility model is now further described with reference to the accompanying drawings.
[0022] See also Figure 2The utility model is a detection device for the swing torque of an intermediate shaft, comprising a floating clamping mechanism, a workpiece rotating mechanism, a rotating testing mechanism, and a frame. A workpiece rotating mechanism 3 is installed at the end of the frame 5. The floating clamping mechanism 2 is longitudinally arranged at the front side of the frame 5. The movable end of the workpiece rotating mechanism 3 is connected to the connecting end of the floating clamping mechanism 2. The clamping end of the floating clamping mechanism 2 clamps the shaft 11 of the intermediate shaft workpiece 1. The rotating testing mechanism 4 is transversely arranged in the middle of the frame 5. The movable end of the rotating testing mechanism 4 is connected to the swing fork 15 of the intermediate shaft workpiece 1.
[0023] See also Figure 1 The intermediate shaft workpiece 1 includes a shaft 11, a fixed fork 12, a cross member 13, a bearing 14, and a swing fork 15. The shaft 11 is connected to the fixed fork 12, and the two ends of the fixed fork 12 are connected to the left and right ends of the cross member 13, and the two ends of the swing fork 15 are connected to the front and rear ends of the cross member 13 by bearings 14.
[0024] See also Figure 3 The workpiece rotating mechanism 3 includes a rotating motor 31, a coupling 32, a connecting plate 33, and a flange 34. The connecting plate 33 is fixed to the end of the frame 5, and the rotating motor 31 is installed on the connecting plate 33. The shaft of the rotating motor 31 is connected to the flange 34 by a coupling 32, and the flange 34 is connected to the connecting end of the floating clamping mechanism 2.
[0025] See also Figure 4 The floating clamping mechanism 2 includes a clamping jaw 23, a Schunk cylinder 24, a connecting block 25, a cylinder 26, a connecting rod 28, and a connecting seat 29. The connecting seat 29 is connected to the movable end of the workpiece rotating mechanism 3. The connecting seat 29 and the piston of the cylinder 26 are connected by a connecting rod 28. The cylinder 26 and the Schunk cylinder 24 are installed on the connecting block 25. The clamping jaw 23 of the Schunk cylinder 24 clamps the shaft 11 of the intermediate shaft workpiece 1.
[0026] In order to facilitate detection of whether the intermediate shaft workpiece 1 is installed in place, a sensor bracket 22 is also installed on the connecting block 25 , and a sensor 21 is installed on the sensor bracket 22 .
[0027] In order to facilitate supporting and guiding the movement direction, a guide rod 27 is installed between the connecting seat 29 and the connecting block 25 .
[0028] See also Figure 5The rotation test mechanism 4 includes a positioning rod 41, a swing block 42, a connecting piece 43, a torque sensor 44, a coupling 45, and a rotating motor 46. The connecting piece 43 is fixed to the middle of the frame 5. The rotating motor 46 is installed on the connecting piece 43. The shaft of the rotating motor 46 is connected to one end of the coupling 45. A torque sensor 44 is provided between the other end of the coupling 45 and one end of the connecting shaft. The other end of the connecting shaft is connected to the vertical end of the swing block 42. A positioning rod 41 is installed on the horizontal end of the swing block 42. The positioning rod 41 is inserted into the spline hole of the swing fork 15.
[0029] In order to facilitate the connection between the swing fork 15 and the connecting shaft, the swing block 42 is L-shaped.
[0030] When the utility model is working, first, the intermediate shaft workpiece 1 is placed on the floating clamping mechanism 2, the sensor 21 senses the intermediate shaft workpiece 1, the Schunk cylinder 24 drives the clamping claw 23 to clamp the intermediate shaft workpiece 1, the piston of the cylinder 26 extends, driving the connecting block 25 to descend to the set position, and the positioning rod 41 is inserted into the spline hole of the swing fork 15.
[0031] The second rotating motor 46 drives the swing block 42 to rotate, and the swing fork 15 rotates accordingly under the action of the positioning rod 41, and the swing torque at the end of the swing fork is measured by the torque sensor 44. The specific rotation process includes the following steps: Step 1, rotate 45° clockwise to make the swing fork 15 at the test starting position; Step 2, rotate 90° counterclockwise to record the counterclockwise swing torque of the torque sensor 44; Step 3, rotate 90° clockwise to record the clockwise swing torque of the torque sensor 44; Step 4, rotate 45° counterclockwise to make the swing fork 15 return to the loading position.
[0032] After the swing torque test of the swing fork end is completed, the rotating motor 31 drives the floating clamping mechanism 2 to rotate 90° counterclockwise through the coupling 32 and the flange 34, and the intermediate shaft workpiece 1 rotates 90° counterclockwise with the floating clamping mechanism 2.
[0033] The second rotating motor 46 drives the swing block 42 to rotate, and the swing fork 15 rotates accordingly under the action of the positioning rod 41, and the swing torque of the fixed fork end is measured by the torque sensor 44. The specific rotation process includes the following steps: Step 1, rotate 45° clockwise to make the swing fork 15 at the test starting position; Step 2, rotate 90° counterclockwise to record the counterclockwise swing torque of the torque sensor 44; Step 3, rotate 90° clockwise to record the clockwise swing torque of the torque sensor 44; Step 4, rotate 45° counterclockwise to make the swing fork 15 return to the loading position.
[0034] After completing the swing torque test of the fixed fork end, the rotating motor 31 drives the floating clamping mechanism 2 to rotate 90° clockwise through the coupling 32 and the flange 34, and the intermediate shaft workpiece 1 rotates 90° clockwise with the floating clamping mechanism 2, and the intermediate shaft workpiece 1 returns to the loading position.
[0035] The measured value of the torque sensor 44 is compared with the set value. If the measured value exceeds the set value, the intermediate shaft workpiece 1 is judged to be unqualified and the intermediate shaft workpiece 1 is placed in the unqualified box; if the measured value does not exceed the set value, the intermediate shaft workpiece 1 is judged to be qualified and the qualified products are removed from the production line. If three consecutive intermediate shaft workpieces 1 are unqualified or five intermediate shaft workpieces 1 are unqualified within one hour, the detection device will alarm.
[0036] At the same time, the test data can be uploaded to the server in real time, which is convenient for subsequent big data analysis to determine whether there are any abnormalities in the production process, conduct information tracing, and monitor process stability.
[0037] The utility model designs a detection device for the swing torque of the intermediate shaft, which can realize the detection of the swing torque of the fixed fork end and the swing fork end of the intermediate shaft through one installation, thereby improving the efficiency of batch detection and being able to more effectively detect the intermediate shaft workpiece with unqualified swing torque, thereby avoiding affecting the user's driving experience.
Claims
1. A detection device for the swing torque of an intermediate shaft, comprising a floating clamping mechanism, a workpiece rotating mechanism, a rotating testing mechanism, and a frame, characterized in that: A workpiece rotating mechanism (3) is installed at the end of the frame (5), a floating clamping mechanism (2) is longitudinally arranged at the front side of the frame (5), a movable end of the workpiece rotating mechanism (3) is connected to a connecting end of the floating clamping mechanism (2), a clamping end of the floating clamping mechanism (2) clamps a shaft (11) of an intermediate shaft workpiece (1), a rotating test mechanism (4) is transversely arranged in the middle of the frame (5), and a movable end of the rotating test mechanism (4) is connected to a swing fork (15) of the intermediate shaft workpiece (1).
2. The device for detecting the swing torque of an intermediate shaft according to claim 1, characterized in that: The workpiece rotating mechanism (3) comprises a rotating motor (31), a coupling (32), a connecting plate (33), and a flange (34); the connecting plate (33) is fixed to the end of the frame (5); the rotating motor (31) is mounted on the connecting plate (33); the shaft of the rotating motor (31) and the flange (34) are connected by a coupling (32); and the flange (34) is connected to the connecting end of the floating clamping mechanism (2).
3. The device for detecting the swing torque of an intermediate shaft according to claim 1, characterized in that: The floating clamping mechanism (2) comprises a clamping jaw (23), a Schunk cylinder (24), a connecting block (25), a cylinder (26), a connecting rod (28), and a connecting seat (29). The connecting seat (29) is connected to the movable end of the workpiece rotating mechanism (3). The connecting seat (29) and the piston of the cylinder (26) are connected by a connecting rod (28). The cylinder (26) and the Schunk cylinder (24) are mounted on the connecting block (25). The clamping jaw (23) of the Schunk cylinder (24) clamps the shaft (11) of the intermediate shaft workpiece (1).
4. The device for detecting the swing torque of the intermediate shaft according to claim 3, characterized in that: A sensor bracket (22) is also mounted on the connecting block (25), and a sensor (21) is mounted on the sensor bracket (22).
5. The device for detecting the swing torque of the intermediate shaft according to claim 3, characterized in that: A guide rod (27) is installed between the connecting seat (29) and the connecting block (25).
6. The device for detecting the swing torque of an intermediate shaft according to claim 1, characterized in that: The rotation test mechanism (4) comprises a positioning rod (41), a swing block (42), a connecting piece (43), a torque sensor (44), a second coupling (45), and a second rotating motor (46). The connecting piece (43) is fixed to the middle of the frame (5). The second rotating motor (46) is mounted on the connecting piece (43). The shaft of the second rotating motor (46) is connected to one end of the second coupling (45). A torque sensor (44) is provided between the other end of the second coupling (45) and one end of the connecting shaft. The other end of the connecting shaft is connected to the vertical end of the swing block (42). A positioning rod (41) is installed on the horizontal end of the swing block (42). The positioning rod (41) is inserted into the spline hole of the swing fork (15).
7. The device for detecting the swing torque of an intermediate shaft according to claim 6, characterized in that: The swing block (42) is L-shaped.
8. The device for detecting the swing torque of an intermediate shaft according to claim 1, characterized in that: The intermediate shaft workpiece (1) comprises a shaft (11), a fixed fork (12), a cross member (13), a bearing (14), and a swing fork (15). The shaft (11) is connected to the fixed fork (12), and the two ends of the fixed fork (12) and the left and right ends of the cross member (13) are connected by bearings (14), and the two ends of the swing fork (15) and the front and rear ends of the cross member (13) are connected by bearings (14).