A torque sensor testing device for a vehicle steering assist system

Abstract

The application relates to a torque sensor testing device for an automobile steering assistance system and relates to the technical field of automobile steering assistance system testing, which comprises a product positioning block for placing products, one side of the product positioning block is provided with a burning component for burning the products, the product positioning block is provided with an adjusting component for separating a product metal shaft from a product shell, one side of the product positioning block is provided with a pressing component for pressing the products on the product positioning block, one side of the product positioning block is provided with a test plate, the test plate is provided with a first rotating motor, a torsion sensor and a test magnet are arranged on an output shaft of the first rotating motor. The application has the effect of realizing automatic testing of accurate torque parameter measurement and tape winding middle position detection.

Description

Technical Field

[0001] This application relates to the technical field of testing automotive power steering systems, and in particular to a torque sensor testing device for automotive power steering systems. Background Technology

[0002] In automotive power steering systems, torque sensors are core components ensuring steering precision and safety. The accuracy of their performance parameters directly impacts vehicle handling stability and driving experience. With the rapid development of the automotive industry, the quality requirements for torque sensors are becoming increasingly stringent. Not only are precise measurements of their torque transmission characteristics necessary, but rigorous testing of the coil center position is also required. The coil center position serves as the reference position for the sensor's internal elastic element; deviations in this position can lead to abnormal power steering output and even safety hazards.

[0003] However, current industry testing of torque sensors largely relies on manual testing devices. These devices typically only allow for simple torque parameter measurements by manually applying external force. The operation depends on the experience and judgment of the testing personnel, resulting in low testing efficiency, making it difficult to meet the testing needs of large-scale production. Furthermore, the randomness of manual operation can easily lead to large measurement errors, compromising accuracy. More importantly, existing manual testing devices lack specialized detection functions for tape centering, failing to quantify and assess the offset of the tape centering. This can lead to potential quality issues with the sensor after assembly due to centering deviation, affecting the reliability of the entire vehicle's steering system.

[0004] Therefore, in response to the problems of existing manual testing devices, such as limited functionality (only torque testing), low efficiency, and insufficient accuracy, the development of an automated testing device that can simultaneously achieve accurate measurement of torque parameters and detection of tape winding center position has become an urgent need to improve the production quality and testing efficiency of torque sensors for automotive power steering systems. Utility Model Content

[0005] To simultaneously achieve automated testing of accurate torque parameter measurement and tape winding center detection, this application provides a torque sensor testing device for automotive power steering systems.

[0006] The technical solution of the torque sensor testing device for automotive power steering systems provided in this application is as follows:

[0007] A torque sensor testing device for an automotive power steering system includes a product positioning block for placing a product, a programming component for programming the product on one side of the product positioning block, an adjustment component for disengaging the product's metal shaft from the product's outer casing on the product positioning block, a clamping component for pressing the product onto the product positioning block on one side of the product positioning block, a test plate on one side of the product positioning block, a first rotary motor mounted on the test plate, and a torque sensor and a test magnet mounted on the output shaft of the first rotary motor.

[0008] By adopting the above technical solution, the product positioning block can place the product, the adjustment component can separate the product metal shaft from the product shell, the clamping component can press the product onto the product positioning block, the test board and its first rotary motor, torque sensor and test magnet can be tested; the programming docking cylinder and its end first test docking joint can program and dock the product, realizing the programming function of the product.

[0009] Optionally, the programming assembly includes a programming docking cylinder, and a first test docking connector is installed at the end of the piston rod of the programming docking cylinder.

[0010] By adopting the above technical solution, the programming and docking cylinder and its first test connector at the end can program and dock the product, thereby realizing the programming function of the product.

[0011] Optionally, the programming assembly further includes a test mating cylinder, wherein a second test mating connector is mounted on the piston rod end of the test mating cylinder.

[0012] By adopting the above technical solution, the test cylinder drives the second test connector to further assist in the burning process, thereby achieving a more comprehensive and effective product burning operation.

[0013] Optionally, the clamping assembly includes a clamping block positioned above the product positioning block, and a clamping cylinder is mounted on the product positioning block for driving the clamping block to rise and fall.

[0014] By adopting the above technical solution, the pressure block can be raised and lowered under the drive of the pressure cylinder, which can press the product firmly onto the product positioning block, ensuring the stability of the product during the test and improving the accuracy of the test.

[0015] Optionally, a first support platform is provided on one side of the test plate, and the adjustment plate is slidably connected to the first support platform. A first lifting cylinder is provided on the first support platform for driving the adjustment plate to rise and fall. A first lateral movement cylinder is provided at the lower end of the first support platform for driving the first support platform to move closer to the product positioning block or further away from the product positioning block.

[0016] By adopting the above technical solution, the first support platform can support the test plate, the first lifting cylinder can drive the test plate to rise and fall, and the first transverse cylinder can drive the first support platform and the test plate to move closer to or away from the product positioning block, so as to facilitate the docking and separation of the test plate and the product, thereby more flexibly completing the test of the torque sensor of the automotive power steering system.

[0017] Optionally, the adjustment assembly includes an adjustment plate on which a second rotary motor is mounted, and a product gripper is mounted on the output shaft of the second rotary motor.

[0018] By adopting the above technical solution, the adjusting plate, the second rotary motor, and the product gripper can achieve the action of separating the product's metal shaft from the product's outer shell.

[0019] Optionally, a second support platform is provided on one side of the test plate, and the adjustment plate is slidably connected to the second support platform. A second lifting cylinder is provided on the second support platform for driving the test plate to rise and fall. A second transverse cylinder is provided at the lower end of the second support platform for driving the second support platform to move closer to the product positioning block or further away from the product positioning block.

[0020] By adopting the above technical solution, a second rotary motor and a product gripper are installed on the adjustment plate, which is coordinated with a second support platform set on one side of the test plate. The adjustment plate is slidably connected to the second support platform. The second lifting cylinder drives the test plate to rise and fall, and the second transverse cylinder drives the second support platform to move closer to or away from the product positioning block, so as to realize flexible adjustment of the position of the adjustment component.

[0021] Optionally, the pressure blocks are configured in two sets, and are located on both sides of the product positioning block respectively.

[0022] By adopting the above technical solution, the adjusting plate can be raised and lowered on the second support platform and the second support platform can be moved laterally; the two sets of pressure blocks are located on both sides of the product positioning block, which can more stably press the product onto the product positioning block.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. Using automated components for programming, positioning, adjustment, and clamping can improve testing efficiency, reduce labor intensity, and solve the problem of low efficiency in manual testing;

[0025] 2. The setup of components such as product positioning blocks, programming components, adjustment components, clamping components, and test boards enables comprehensive and accurate testing of the torque sensor in the automotive power steering system, solving the problem that traditional testing methods cannot comprehensively test various performance indicators;

[0026] 3. The coordinated operation of all components makes the testing process more stable and reliable, reduces the influence of human factors, improves the accuracy and consistency of test results, and meets the requirements of the modern automotive industry for high-precision and high-efficiency testing of torque sensors. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0028] In the diagram, 1. Product positioning block; 2. Programming assembly; 21. Programming docking cylinder; 22. First test docking connector; 23. Test mating cylinder; 24. Second test docking connector; 3. Adjustment assembly; 31. Adjustment plate; 32. Second rotary motor; 33. Product gripper; 4. Clamping assembly; 41. Clamping block; 42. Clamping cylinder; 5. Test plate; 6. First rotary motor; 7. Torque sensor; 8. Test magnet; 9. First support platform; 10. First lifting cylinder; 11. First lateral movement cylinder; 12. Second support platform; 13. Second lifting cylinder; 14. Second lateral movement cylinder; 15. Top-mounting cylinder. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1 This application will be described in further detail below.

[0030] An embodiment of this application is: a torque sensor testing device for an automotive power steering system, referring to... Figure 1 This includes a product positioning block 1 for placing the product. One side of the product positioning block 1 is equipped with a programming component 2 for programming the product.

[0031] The programming assembly 2 includes a programming docking cylinder 21, with a first test connector 22 mounted on the piston rod end of the programming docking cylinder 21. The programming assembly 2 also includes a test mating cylinder 23, which is located at the same height as the programming docking cylinder 21. The test mating cylinder 23 is located on the side of the product positioning block 1 away from the programming docking cylinder 21, and a second test connector 24 is mounted on the piston rod end of the test mating cylinder 23.

[0032] The programming and docking cylinder 21 and its end first test connector 22 can program and dock the product, and the test docking cylinder 23 drives the second test connector 24 to further assist in programming, thereby realizing the programming function of the product.

[0033] A clamping assembly 4 for pressing the product onto the product positioning block 1 is provided on one side. The clamping assembly 4 includes a pressure block 41 placed above the product positioning block 1. The pressure blocks 41 are configured in two sets, with each set including two pressure blocks 41, which are located on both sides of the product positioning block 1. A clamping cylinder 42 for driving the pressure blocks 41 to rise and fall is installed on the product positioning block 1. The extension and retraction direction of the clamping cylinder 42 is perpendicular to the upper end face of the product positioning block 1.

[0034] A test plate 5 is provided on one side of the product positioning block 1. A first rotary motor 6 is installed at the top of the test plate 5. A torque sensor 7 and a test magnet 8 are installed on the output shaft of the first rotary motor 6. A first support platform 9 is provided on one side of the test plate 5. The test plate 5 is slidably connected to the first support platform 9. A first lifting cylinder 10 for driving the test plate 5 to rise and fall is installed on the first support platform 9. The output shaft of the first lifting cylinder 10 is fixedly connected to the test plate 5. The connecting shaft is not shown in the figure. A first transverse cylinder 11 for driving the first support platform 9 to move closer to or further away from the product positioning block 1 is provided at the lower end of the first support platform 9. The output shaft of the first transverse cylinder 11 is fixedly connected to the first support platform 9. An upper lifting cylinder 15 is installed below the product positioning block 1. The upper lifting cylinder 15 cooperates with the shaft of the first rotary motor 6 to ensure the concentricity of the magnet and the product metal ring axis during testing.

[0035] The product positioning block 1 is equipped with an adjustment assembly 3 for separating the product's metal shaft from the product's outer casing. The adjustment assembly 3 includes an adjustment plate 31, on which a second rotary motor 32 is mounted. A product gripper 33 is mounted on the output shaft of the second rotary motor 32. A second support platform 12 is provided on one side of the adjustment plate 31, and the adjustment plate 31 is slidably connected to the second support platform 12. A second lifting cylinder 13 is provided on the second support platform 12 for driving the test plate 5 to rise and fall. A second transverse cylinder 14 is provided at the lower end of the second support platform 12 for driving the second support platform 12 to move closer to or further away from the product positioning block 1.

[0036] The implementation principle of this embodiment is as follows: The product is placed inside the product positioning block 1. By controlling the clamping cylinder 42, the clamping cylinder 42 presses the product tightly through the pressure block 41. After receiving the programming command, the programming component 2 and the tester program the product. After successful programming, the second transverse cylinder 14 moves, moving the second rotary motor 32 above the product. The second lifting cylinder 13 descends, moving the product gripper into the product metal shaft. The top cylinder 15 lifts, separating the product metal shaft from the product shell, while the product gripper opens to support the product metal shaft. Upon receiving the test command, the second rotary motor 32 begins to rotate the product shaft ±810°, while the torque sensor 7 detects the frictional torque during product rotation. After rotation, the top cylinder 15 descends, the first lifting cylinder 10 descends, and the product metal shaft is engaged with the product shell. After engagement, the product gripper retracts and leaves the product metal shaft. The second lifting cylinder 13 rises, returning to its highest position, and the second transverse cylinder 14 retracts, moving back to its initial position. The first transverse cylinder 11 moves, moving the first rotary motor 6 above the product. The first lifting cylinder 10 moves downward, moving the test magnet 8 to a designated position above the product. The first rotary motor 6 then rotates ±8° with the magnet in place to test the product's performance. After the test, the first lifting cylinder 10 rises back to its initial position, and the first transverse cylinder 11 moves back to its initial position. The first test connector 22 and the programming port retract to their initial positions, and the product clamping block 41 opens. The entire testing process is then complete.

[0037] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A testing device for a torque sensor in an automotive power steering system, characterized in that, The product positioning block (1) is used to place the product. A burning component (2) for burning the product is provided on one side of the product positioning block (1). An adjustment component (3) for separating the product metal shaft from the product shell is provided on the product positioning block (1). An upper cylinder (15) is installed below the product positioning block (1). A pressing component (4) for pressing the product onto the product positioning block (1) is provided on one side of the product positioning block (1). A test plate (5) is provided on one side of the product positioning block (1). A first rotary motor (6) is installed on the test plate (5). A torque sensor (7) and a test magnet (8) are installed on the output shaft of the first rotary motor (6).

2. The torque sensor testing device for an automotive power steering system according to claim 1, characterized in that, The programming assembly (2) includes a programming docking cylinder (21), and a first test docking connector (22) is installed at the end of the piston rod of the programming docking cylinder (21).

3. The torque sensor testing device for an automotive power steering system according to claim 2, characterized in that, The programming assembly (2) also includes a test mating cylinder (23), the piston rod end of which is fitted with a second test mating connector (24).

4. The torque sensor testing device for an automotive power steering system according to claim 1, characterized in that, The clamping assembly (4) includes a clamping block (41) placed above the product positioning block (1), and a clamping cylinder (42) is installed on the product positioning block (1) for driving the clamping block (41) to rise and fall.

5. The torque sensor testing device for an automotive power steering system according to claim 4, characterized in that, The test plate (5) has a first support platform (9) on one side. The test plate (5) is slidably connected to the first support platform (9). The first support platform (9) is provided with a first lifting cylinder (10) for driving the test plate (5) to rise and fall. The lower end of the first support platform (9) is provided with a first transverse cylinder (11) for driving the first support platform (9) to move closer to the product positioning block (1) or further away from the product positioning block (1).

6. The torque sensor testing device for an automotive power steering system according to claim 1, characterized in that, The adjustment assembly (3) includes an adjustment plate (31), on which a second rotary motor (32) is mounted, and on the output shaft of the second rotary motor (32) is a product gripper (33).

7. The torque sensor testing device for an automotive power steering system according to claim 6, characterized in that, A second support platform (12) is provided on one side of the adjustment plate (31). The adjustment plate (31) is slidably connected to the second support platform (12). A second lifting cylinder (13) is provided on the second support platform (12) for driving the adjustment plate (31) to rise and fall. A second transverse cylinder (14) is provided at the lower end of the second support platform (12) for driving the second support platform (12) to move closer to the product positioning block (1) or further away from the product positioning block (1).

8. The torque sensor testing device for an automotive power steering system according to claim 4, characterized in that, The pressure block (41) is set in two groups and is located on both sides of the product positioning block (1).

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