Automobile cross beam test detection tool

Abstract

The utility model relates to the technical field of automobile part detection, concretely to an automobile beam test detection tool, install top plate on base, be provided with vertical cylinder on top plate, install cover plate on vertical cylinder, be provided with the lower pressure sensor main body on moving plate, beneficial effect is: when the connecting piece extrusion upper contact plate, cooperate the pressure that upper pressure sensor main body detects produces, upper pressure sensor main body can provide feedback data, help control system automatic control first electric push rod its telescopic amount adjusts the compression of spring, ensure that the impact force maintains in the set range, can effectively improve the precision of detection, improve the reliability of device, even if the connecting piece is at different height, through above make the device can carry out adaptive adjustment, make the connecting piece move to the upper contact plate place and pull the moving plate and detection piece upwardly, do not need personnel manual adjustment, simple operation, convenient for personnel to use.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts testing, specifically to a testing fixture for automotive crossbeams. Background Technology

[0002] As a key load-bearing component of the vehicle chassis, the crossbeam runs horizontally across the bottom of the vehicle body, much like the spine of the human body, playing an indispensable role in vehicle operation. Thanks to its ingenious mechanical design, it not only provides a stable "home" for core components such as the engine and transmission, but also enhances the overall rigidity and strength of the vehicle body, effectively resisting the impact of road undulations and the inertial forces during rapid acceleration and braking. Therefore, automotive crossbeam testing and inspection fixtures become the "gatekeepers" of quality, ensuring that each crossbeam performs at its optimal state through precise simulation testing and data monitoring, safeguarding the safety and stability of the vehicle.

[0003] In the prior art, a testing fixture for automotive crossbeams, authorized by publication number CN217637919U, includes a base plate. A circular plate is fixedly connected to the bottom of the slider. The upper part of the outer wall of the screw is rotatably connected to the middle of the top plate via a bearing. A sleeve is threadedly connected to the lower part of the outer wall of the screw. A sliding sleeve is fixedly connected to the top of the sleeve. A sliding rod is slidably engaged with the inner wall of the sliding sleeve. The top of the sliding rod is fixedly connected to the bottom of the top plate. A hydraulic cylinder is fixedly connected to the front of the sleeve. A connecting piece is installed on the outer wall of the output end of the hydraulic cylinder. The top of the connecting piece is in contact with the bottom of the circular plate. This utility model relates to the field of automotive parts testing technology. Through the cooperation between the circular plate, the screw, and the hydraulic cylinder, the magnitude of the impact force is changed. This solves the problem that existing devices are inconvenient to change the magnitude of the impact force during operation, and cannot guarantee the same impact force for each continuous test, thus reducing the likelihood of deviation in the test results.

[0004] However, the elasticity of springs weakens after prolonged use. Even with the same compression, the impact force cannot be guaranteed to be the same each time, which can easily cause deviations in the test results. Different cars have different crossbeam heights, and the height of the test piece and the circular plate will change after the test is completed. The connecting parts are difficult to move under the circular plate and require manual adjustment. The operation is complicated and inconvenient for personnel to use. Utility Model Content

[0005] The purpose of this utility model is to provide a testing and inspection fixture for automotive crossbeams to solve the problems mentioned in the background art.

[0006] To achieve the above object, the present utility model provides the following technical solutions: An automotive crossbeam testing and detection tooling, comprising: a base, on which a top plate is installed, on the top plate there is a vertical cylinder, on the vertical cylinder there is a cover plate, inside the vertical cylinder there are a spring, a mounting plate and a circular plate, the circular plate is connected to a connecting rod, and one end of the connecting rod is stuck in a connecting hole;

[0007] A moving plate, on which there is a lower pressure sensor body, on the lower pressure sensor body there is a lower contact plate, above the lower contact plate there is an upper contact plate, the upper contact plate is connected to an upper pressure sensor body, the upper pressure sensor body is connected to a square plate, one end of the square plate is stuck in a square groove, the square plate is connected to a slider, and the slider is stuck in a sliding groove.

[0008] Preferably, the lower contact plate is in the shape of a square plate, on the lower contact plate there is fixedly installed a lower pressure sensor body, the detection end of the lower pressure sensor body is fixedly installed on the moving plate, the moving plate is in the shape of a "concave" - shaped plate structure, on the moving plate there is fixedly connected a connecting rod, and at the lower end of the moving plate there is fixedly installed a detection piece.

[0009] Preferably, the connecting rod can slide up and down along the connecting hole opened on the vertical cylinder, the vertical cylinder is threadedly connected with a cover plate, the vertical cylinder is fixedly installed on the top plate, the top plate is fixedly connected to the base through a column, and on the top plate there is fixedly installed a first electric push rod.

[0010] Preferably, the mounting plate is in the shape of a circular plate structure, on the mounting plate there is fixedly connected a spring, both ends of the spring are fixedly connected to the mounting plate, the lower mounting plate contacts the circular plate, the circular plate is fixedly connected to the connecting rod, and the connecting rod is in the shape of a cylindrical structure.

[0011] Preferably, on the moving plate there is opened a sliding groove, the sliding groove is in the shape of a "convex" - shaped groove structure, inside the sliding groove there is a slider, the slider is in the shape of a "convex" - shaped plate structure, the slider can slide along the sliding groove, the slider is fixedly connected to the square plate, and the square plate can slide along the square groove, and the square groove is in the shape of a square groove structure.

[0012] Preferably, the square plate is in the shape of a square plate structure, on the square plate there is fixedly installed an upper pressure sensor body, the detection end of the upper pressure sensor body is fixedly connected to the upper contact plate, the upper contact plate is in the shape of an "L" - shaped plate structure, the upper contact plate is fixedly connected to the telescopic end of a third electric push rod, and the third electric push rod is fixedly installed on the moving plate.

[0013] Preferably, the telescopic end of the first electric push rod is fixedly connected to a connecting plate, the connecting plate is in the shape of an "L" - shaped plate structure, on the connecting plate there is fixedly installed a second electric push rod, and on the telescopic end of the second electric push rod there is fixedly installed a connecting piece.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] The automotive crossbeam testing fixture proposed in this utility model, when the connecting member presses against the upper contact plate, detects the pressure generated by the upper pressure sensor body. The upper pressure sensor body can provide feedback data to help the control system automatically control the extension and retraction of the first electric push rod and adjust the compression of the spring to ensure that the impact force is maintained within the set range. This can effectively improve the detection accuracy and the reliability of the device. The square plate slides into the groove without obstructing the downward movement of the connecting member, allowing the connecting member to move downward and press against the lower contact plate. The lower pressure sensor body detects the pressure. When the pressure exceeds the threshold, the square plate moves along the square groove to above the connecting member, causing the connecting member to move upward and press against the upper contact plate to complete one cycle. Even if the connecting member is at different heights, the device can adapt and adjust accordingly, allowing the connecting member to move to the upper contact plate and pull the moving plate and the detection member upward again. No manual adjustment is required, making the operation simple and convenient for personnel to use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the device structure of this utility model;

[0017] Figure 2 This is a partial structural diagram of the device of this utility model;

[0018] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle;

[0019] Figure 4 This is a schematic cross-sectional view of part of the structure of the device of this utility model;

[0020] Figure 5 for Figure 4 Enlarged structural diagram at point B.

[0021] In the diagram: 1. Base; 2. Top plate; 3. First electric actuator; 4. Connecting plate; 5. Second electric actuator; 6. Connector; 7. Vertical cylinder; 8. Cover plate; 9. Mounting plate; 10. Spring; 11. Circular plate; 12. Connecting rod; 13. Connecting hole; 14. Moving plate; 15. Detector; 16. Slide groove; 17. Slider; 18. Square plate; 19. Upper pressure sensor body; 20. Upper contact plate; 21. Lower contact plate; 22. Lower pressure sensor body; 23. Third electric actuator; 24. Square groove. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] Example 1

[0024] Please see Figures 1-5 This utility model provides a technical solution: a testing and inspection fixture for automotive crossbeams, comprising: a base 1, a top plate 2 mounted on the base 1, a vertical cylinder 7 mounted on the top plate 2, a cover plate 8 mounted on the vertical cylinder 7, a spring 10, a mounting plate 9, and a circular plate 11 disposed inside the vertical cylinder 7, the circular plate 11 being connected to a connecting rod 12, one end of the connecting rod 12 being inserted into a connecting hole 13; a movable plate 14, a lower pressure sensor body 22 mounted on the movable plate 14, a lower contact plate 21 mounted on the lower pressure sensor body 22, an upper contact plate 20 mounted above the lower contact plate 21, the upper contact plate 20 being connected to an upper pressure sensor body 19, the upper pressure sensor body 19 being connected to a square plate 18, one end of the square plate 18 being inserted into a square groove 24, the square plate 18 being connected to a slider 17, and the slider 17 being inserted into a sliding groove 16;

[0025] The upper pressure sensor body 19 and the lower pressure sensor body 22 involved in this utility model are TQ-717 wheel spoke tension and pressure sensors manufactured by Shitong Kechuang.

[0026] In practical use, when the connector 6 presses against the upper contact plate 20, it can move the square plate 18 and the moving plate 14 upwards, causing the connecting rod 12 to move along the connecting hole 13, thus compressing the spring 10. This, combined with the pressure sensor body 19, detects the generated pressure. The upper pressure sensor body 19 can effectively improve the problem of impact force changes caused by the weakening of the spring 10's elasticity. The upper pressure sensor body 19 can provide feedback data to help the control system automatically control the extension and retraction of the first electric push rod 3 to adjust the compression of the spring 10, ensuring that the impact force is maintained within the set range. This can effectively improve the detection accuracy and the reliability of the device. Activating the second electric push rod 5 pulls the connector 6 to move, causing the connector 6 to disengage from the upper contact plate 20. The spring 10 extends and pushes the lower mounting plate 9 and the round... Plate 11 moves downwards along the vertical cylinder 7, causing connecting rod 12 to move downwards along connecting hole 13. Testing is performed by the impact of the detection piece 15 against the car crossbeam mounted on the base 1. The third electric actuator 23 is activated to pull the upper contact plate 20, causing square plate 18 and slider 17 to slide along the slide groove 16. Square plate 18 slides into the slide groove 16, ensuring that square plate 18 and upper contact plate 20 do not obstruct the downward movement of connecting piece 6. The first electric actuator 3 is activated, causing connecting plate 4, second electric actuator 5, and connecting piece 6 to move downwards, causing connecting piece 6 to press against lower contact plate 21. Pressure is detected by the lower pressure sensor body 22. When the pressure exceeds the threshold, the third electric actuator 23 is activated to push the upper contact plate 20, causing square plate 18 to move along square groove 24, placing it in the correct position. Figure 3 In the state, the first electric push rod 3 is activated to move the connecting piece 6 upward and press the upper contact plate 20 to complete one cycle operation. Even if the connecting piece 6 is at different heights, the device can be adapted and adjusted so that the connecting piece 6 moves to the upper contact plate 20 and pulls the moving plate 14 and the detection piece 15 upward again. No manual adjustment is required, the operation is simple and easy for personnel to use.

[0027] Example 2

[0028] To improve the reliability of the device, based on Embodiment 1, a first electric actuator 3 is provided. The telescopic end of the first electric actuator 3 is fixedly connected to the connecting plate 4. The connecting plate 4 has an "L"-shaped plate structure. A second electric actuator 5 is fixedly installed on the connecting plate 4. A connector 6 is fixedly installed on the telescopic end of the second electric actuator 5. By activating the first electric actuator 3, the connecting plate 4 is pulled upward, causing the second electric actuator 5 and the connector 6 to move upward. The connector 6 then presses against the upper contact plate 20, as in Example 1. Figure 3 And examples Figure 4 When the connector 6 shown contacts the upper contact plate 20, the second electric push rod 5 is in a fully extended state and cannot continue to extend.

[0029] Square plate 18 has a square plate structure. An upper pressure sensor body 19 is fixedly installed on square plate 18. The detection end of the upper pressure sensor body 19 is fixedly connected to the upper contact plate 20. The upper contact plate 20 has an "L"-shaped plate structure and is fixedly connected to the telescopic end of the third electric push rod 23. The third electric push rod 23 is fixedly installed on the movable plate 14. When the connecting piece 6 presses against the upper contact plate 20, it can move square plate 18 and movable plate 14 upwards, causing the connecting rod 12 to move along the connecting hole 13. When the spring 10 is installed inside the vertical cylinder 7, it is in a compressed state, compressing the spring 10 inside the vertical cylinder 7. When external pressure acts on the upper pressure sensor body 19... When the sensitive element deforms, its internal resistance changes, which in turn changes the electrical signal. The magnitude of the electrical signal is measured to reflect the magnitude of the pressure, thereby achieving accurate measurement and monitoring of the pressure. During the process, the generated pressure can be detected by the upper pressure sensor body 19. The upper pressure sensor body 19 can effectively improve the problem of impact force changes caused by the weakening of the spring force of the spring 10. The upper pressure sensor body 19 can provide feedback data to help the control system automatically control the extension and retraction of the first electric push rod 3 to adjust the compression of the spring 10, ensuring that the impact force is maintained within the set range. This can effectively improve the detection accuracy and the reliability of the device.

[0030] The connecting rod 12 can slide up and down along the connecting hole 13 on the vertical cylinder 7. The vertical cylinder 7 is threaded with a cover plate 8. The vertical cylinder 7 is fixedly installed on the top plate 2. The top plate 2 is fixedly connected to the base 1 through a column. The first electric push rod 3 is fixedly installed on the top plate 2. The connecting hole 13 is a circular hole structure. The second electric push rod 5 is activated to pull the connecting piece 6 to move, so that the connecting piece 6 is separated from the upper contact plate 20. The spring 10 extends and pushes the lower mounting plate 9 and the circular plate 11 to move downward along the inside of the vertical cylinder 7, so that the connecting rod 12 moves downward along the connecting hole 13, so that the moving plate 14 and the detection piece 15 move downward. During the process, the third electric push rod 23 is activated to pull the upper contact plate 20, so that the square plate 18 and the slider 17 slide along the slide groove 16, so that the square plate 18 slides into the slide groove 16, so that the square plate 18 and the upper contact plate 20 will not obstruct the downward movement of the connecting piece 6. The test is carried out by the detection piece 15 hitting the car crossbeam installed on the base 1.

[0031] The lower contact plate 21 is in the shape of a square plate. A lower pressure sensor body 22 is fixedly installed on the lower contact plate 21. The detection end of the lower pressure sensor body 22 is fixedly installed on the moving plate 14. The moving plate 14 is in the shape of a concave-shaped plate structure. A connecting rod 12 is fixedly connected to the moving plate 14. A detection piece 15 is fixedly installed at the lower end of the moving plate 14. After completing a detection operation, the second electric push rod 5 is started to push the connecting piece 6 to move until the second electric push rod 5 is in its longest telescopic state. The connecting piece 6 is just directly above the lower contact plate 21. The first electric push rod 3 is started to move the connecting plate 4, the second electric push rod 5 and the connecting piece 6 downward, so that the connecting piece 6 presses the lower contact plate 21, and the lower contact plate 21 is pressed. The pressure is detected by the lower pressure sensor body 22. When the pressure exceeds the threshold;

[0032] A chute 16 is formed in the moving plate 14. The chute 16 is in the shape of a convex-shaped groove structure. A slider 17 is arranged in the chute 16. The slider 17 is in the shape of a convex-shaped plate structure. The slider 17 can slide along the chute 16. The slider 17 is fixedly connected to the square plate 18. The square plate 18 can slide along the square groove 24. The square groove 24 is in the shape of a square groove structure. The third electric push rod 23 is started to push the upper contact plate 20, so that the square plate 18 moves along the square groove 24 to make it in the example Figure 3 state. The first electric push rod 3 is started to move the connecting piece 6 upward to press the upper contact plate 20 to complete a cycle operation. Even when the connecting piece 6 is at different heights, through the above, the device can be adaptively adjusted, so that the connecting piece 6 moves to the upper contact plate 20 to pull the moving plate 14 and the detection piece 15 upward again, without manual adjustment by personnel, with simple operation and convenient for personnel to use.

[0033] Embodiment III

[0034] On the basis of Embodiment II, in order to improve the use effect of the device, a mounting plate 9 is provided. The mounting plate 9 is in the shape of a circular plate. A spring 10 is fixedly connected to the mounting plate 9. Both ends of the spring 10 are fixedly connected to the mounting plate 9. The lower mounting plate 9 contacts the circular plate 11. The circular plate 11 is fixedly connected to the connecting rod 12. The connecting rod 12 is in the shape of a cylindrical structure. The upper surface of the upper mounting plate 9 contacts the lower surface of the cover plate 8. When a person rotates and unscrews the cover plate 8, the spring 10 in the compressed state can push the upper mounting plate 9 upward to separate from the vertical cylinder 7, and the person can pull the mounting plate 9 to pull out the spring 10 to replace the spring 10, which is convenient for personnel's subsequent maintenance, improves the reliability of the device, and is convenient for personnel to use.

[0035] In actual use, when the connector 6 presses against the upper contact plate 20, the pressure generated is detected by the upper pressure sensor body 19. The upper pressure sensor body 19 can provide feedback data to help the control system automatically control the extension and retraction of the first electric push rod 3 and the compression of the spring 10 to ensure that the impact force is maintained within the set range. This can effectively improve the detection accuracy and the reliability of the device. The square plate 18 slides into the slide groove 16 without obstructing the downward movement of the connector 6. The connector 6 moves downward to press against the lower contact plate 21. The pressure is detected by the lower pressure sensor body 22. When the pressure exceeds the threshold, the square plate 18 moves along the square groove 24 to above the connector 6. The connector 6 moves upward to press against the upper contact plate 20 to complete one cycle. Even if the connector 6 is at different heights, the device can adapt and adjust accordingly. The connector 6 moves to the upper contact plate 20 and pulls the moving plate 14 and the detection piece 15 upward again. No manual adjustment is required. The operation is simple and easy for personnel to use.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A testing and inspection fixture for automotive crossbeams, comprising: Base (1), on which a top plate (2) is installed. A vertical cylinder (7) is provided on the top plate (2). It is characterized in that: a cover plate (8) is installed on the vertical cylinder (7), and a spring (10), a mounting plate (9) and a circular plate (11) are arranged in the vertical cylinder (7). The circular plate (11) is connected to a connecting rod (12), and one end of the connecting rod (12) is stuck in a connecting hole (13). Moving plate (14), on which a lower pressure sensor body (22) is provided. A lower contact plate (21) is provided on the lower pressure sensor body (22). An upper contact plate (20) is arranged above the lower contact plate (21). The upper contact plate (20) is connected to an upper pressure sensor body (19). The upper pressure sensor body (19) is connected to a square plate (18). One end of the square plate (18) is stuck in a square groove (24). The square plate (18) is connected to a slider (17), and the slider (17) is stuck in a sliding groove (16).

2. The automotive crossbeam testing and inspection fixture according to claim 1, characterized in that: The lower contact plate (21) is in the shape of a square plate. The lower pressure sensor body (22) is fixedly installed on the lower contact plate (21). The detection end of the lower pressure sensor body (22) is fixedly installed on the moving plate (14). The moving plate (14) is in the shape of a "concave" - shaped plate structure. A connecting rod (12) is fixedly connected to the moving plate (14). A detection piece (15) is fixedly installed at the lower end of the moving plate (14).

3. The automotive crossbeam testing and inspection fixture according to claim 1, characterized in that: The connecting rod (12) can slide up and down along the connecting hole (13) opened on the vertical cylinder (7). The cover plate (8) is threadedly connected to the vertical cylinder (7). The vertical cylinder (7) is fixedly installed on the top plate (2). The top plate (2) is fixedly connected to the base (1) through a column. A first electric push rod (3) is fixedly installed on the top plate (2).

4. The automotive crossbeam testing and inspection fixture according to claim 1, characterized in that: The mounting plate (9) is in the shape of a circular plate structure. A spring (10) is fixedly connected to the mounting plate (9). Both ends of the spring (10) are fixedly connected to the mounting plate (9). The lower mounting plate (9) contacts the circular plate (11). The circular plate (11) is fixedly connected to the connecting rod (12). The connecting rod (12) is in the shape of a cylindrical structure.

5. The automotive crossbeam testing and inspection fixture according to claim 1, characterized in that: A sliding groove (16) is opened on the moving plate (14). The sliding groove (16) is in the shape of a "convex" - shaped groove structure. A slider (17) is arranged in the sliding groove (16). The slider (17) is in the shape of a "convex" - shaped plate structure. The slider (17) can slide along the sliding groove (16). The slider (17) is fixedly connected to the square plate (18). The square plate (18) can slide along the square groove (24). The square groove (24) is in the shape of a square groove structure.

6. The automotive crossbeam testing and inspection fixture according to claim 1, characterized in that: The square plate (18) is in the shape of a square plate structure. An upper pressure sensor body (19) is fixedly installed on the square plate (18). The detection end of the upper pressure sensor body (19) is fixedly connected to the upper contact plate (20). The upper contact plate (20) is in the shape of an "L" - shaped plate structure. The telescopic end of a third electric push rod (23) is fixedly connected to the upper contact plate (20). The third electric push rod (23) is fixedly installed on the moving plate (14).

7. The automotive crossbeam testing and inspection fixture according to claim 3, characterized in that: The telescopic end of the first electric actuator (3) is fixedly connected to the connecting plate (4). The connecting plate (4) has an "L" shaped plate structure. The second electric actuator (5) is fixedly installed on the connecting plate (4). The telescopic end of the second electric actuator (5) is fixedly installed with a connector (6).

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