Automobile sunroof distortion performance test bench

Abstract

The invention belongs to the technical field of automobile part detection, and discloses an automobile skylight distortion performance test board, which comprises a test board, a sliding groove is formed in the test board, a sleeve block is movably mounted in the sliding groove, and a bidirectional screw is in threaded sleeve connection with the interior of the sleeve block. Compared with a traditional test board, the automobile skylight distortion performance test board has the advantages that accurate and efficient detection of the distortion performance of the skylight can be achieved, the core advantage is outstanding, the initial clamping force is sensed in real time in the fixing link and the skylight clamping frame in cooperation with an inner side pressure sensor, it is ensured that the fixing state is consistent with actual loading, and the stability of the automobile skylight distortion performance test board is improved. Test deviation caused by too loose or too tight clamping is avoided, a reliable foundation is laid, a driving system drives a two-way screw to rotate through a motor, a driven gear and a driving gear, a reverse thread drives a sleeve block to reversely move along a sliding groove, and twisting force is accurately applied in cooperation with a movable frame and a mounting plate.

Description

Technical Field

[0001] This invention belongs to the field of automotive parts testing technology, specifically a test bench for the torsion performance of automotive sunroofs. Background Technology

[0002] The core requirement of an automotive sunroof torsion performance test bench is to simulate vehicle body torsion conditions, verify the structural strength, sealing performance, and functional stability of the sunroof, and ensure that the sunroof does not suffer damage or malfunction during vehicle operation (such as when driving over bumpy roads or when the vehicle body is subjected to stress and deformation). In existing technologies, when automotive sunroof torsion performance test benches use bolts and nuts for positioning, the core problem lies in the reliability defects of the mechanical connection. On the one hand, repeated use of the threaded inspection pin and nut can cause thread wear due to friction, leading to a gradual increase in the mating clearance. Traditional flip-type gauges require frequent replacement of the threaded inspection pin, increasing maintenance costs and reducing positioning accuracy due to accumulated clearance, directly affecting the consistency of test results. On the other hand, vibration, temperature changes, and long-term static loads during the test can cause the bolt preload to continuously decrease, posing a significant risk of loosening. For example, the ES81600-01 standard explicitly requires that the bolt torque be strictly controlled at 30 Nm, but in actual testing, vibration may cause torque loss exceeding 15%, leading to deviation in the positioning position, and in severe cases, even causing the sunroof to detach during the test, creating a safety hazard. Summary of the Invention

[0003] The purpose of this invention is to provide a test bench for the torsion performance of automotive sunroofs, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a test bench for the torsion performance of an automotive sunroof, comprising a test bench, an inner groove of which a sleeve block is movably mounted, a double-ended screw threaded into the inner part of the sleeve block, a motor fixedly mounted on the left side of the test bench, a drive gear fixedly mounted on the output end of the motor, and one end of the drive gear movably mounted inside the test bench, a driven gear fixedly mounted on one end of the double-ended screw, and the driven gear meshing with the drive gear, a movable frame fixedly mounted on the top of the sleeve block, an mounting plate movably mounted inside the movable frame, a sunroof clamping frame fixedly mounted on the top of the mounting plate, a push rod fixedly mounted on the outer side of the sunroof clamping frame, the push rod being L-shaped, and a pressure sensor fixedly mounted on the inner side of the sunroof clamping frame.

[0005] Preferably, the movable frame and the mounting plate have positioning holes inside, a positioning block is movably installed inside the positioning holes, a box is fixedly installed inside the movable frame, a pull rod is fixedly installed at one end of the positioning block and one end of the pull rod passes through the inside of the box, and a spring is fixedly installed between the box and the positioning block.

[0006] Preferably, a support frame is fixedly installed on the top of the test bench, a rotating block is movably installed on the outer surface of the support frame, a transparent explosion-proof box is movably installed on the top of the test bench, a first limiting post is fixedly installed on the front of the transparent explosion-proof box, a second limiting post is fixedly installed on the front of the test bench, a limiting workpiece is fixedly installed on the outer surface of the first limiting post, and one end of the limiting workpiece is engaged with the outer surface of the second limiting post. A handrail is fixedly installed on the outside of the transparent explosion-proof box, and the outer surface of the handrail is U-shaped.

[0007] Preferably, a support plate is fixedly installed at the bottom of the test platform, and a fixing plate is fixedly installed between the two support plates.

[0008] Preferably, a reinforcing rib is fixedly installed at the angle between the support plate and the fixing plate, and the outer surface of the reinforcing rib is triangular.

[0009] Preferably, a support base is fixedly installed on the left side of the test bench, and the interior of the support base is U-shaped.

[0010] Preferably, a fixing frame is fixedly installed on the back of the test bench, a fixing block is movably installed inside the fixing frame, and a toolbox is fixedly installed on the back of the fixing block.

[0011] Preferably, the inner diameter of the fixing frame is equal to the outer diameter of the fixing block, and the interior of the fixing frame has a smooth surface design.

[0012] The beneficial effects of this invention are as follows:

[0013] 1. Compared with traditional test benches, this invention, using a car sunroof torsion performance test bench, enables precise and efficient testing of sunroof torsion performance. Its core advantages are prominent: In the fixing stage, the sunroof clamping frame, in conjunction with an internal pressure sensor, senses the initial clamping force in real time, ensuring the fixing state is consistent with the actual vehicle installation and avoiding test deviations caused by excessively loose or tight clamping, thus laying a reliable foundation. The drive system, through a motor, driven gear, and drive gear, drives a bidirectional screw to rotate. The reverse thread drives the sleeve block to move in the opposite direction along the slide groove, precisely applying torsional force in conjunction with the moving frame and mounting plate. Parameters can be flexibly adjusted to perfectly reproduce the vehicle body torsion condition. It combines protection and monitoring; an L-shaped push rod assists in limiting and preventing sample damage; and the pressure sensor collects force data in real time, providing accurate basis for structural stability judgment. The entire system achieves automated testing, reducing manual intervention, improving efficiency and result reliability. Furthermore, the sunroof clamping frame is adaptable to multiple vehicle models, reducing equipment replacement costs and meeting the needs of batch testing and R&D verification.

[0014] 2. Compared with traditional test benches, this invention significantly improves the adaptability, adjustment accuracy, and operational reliability of automotive sunroof torsion testing through the positioning structure between the moving frame and the mounting plate. Its core advantages are clear: the structure utilizes the interlocking of internal positioning holes and positioning blocks. In the initial state, the spring in the moving frame's inner housing naturally extends, pushing the positioning block precisely into the positioning hole, achieving a stable connection and avoiding force transmission deviations caused by loosening during testing. Adjustment only requires pulling the lever to dislodge the positioning block's compressed spring, eliminating the need for complex tools and quickly adjusting the mounting plate position. This greatly improves the efficiency of adapting to different sunroof models or adjusting the torsion angle. The precise fit between the positioning hole and the positioning block ensures accurate position locking after adjustment, with no displacement error. Its versatility is extremely high, adaptable to sunroof testing of multiple models, reducing the investment in dedicated fixtures. In subsequent testing, the stable connection ensures synchronous movement of both, allowing the torsional force to be accurately transmitted to the sunroof clamping frame, providing crucial support for the authenticity and reliability of test data.

[0015] 3. Compared with traditional test benches, this invention, through its transparent explosion-proof box on top and its supporting structure, achieves a triple improvement in testing safety, ease of operation, and process visibility, offering significant advantages. In terms of safety, the transparent explosion-proof box effectively blocks the risk of glass shattering and flying debris during testing, preventing injury. The transparent material provides both protection and real-time observation of the internal testing status, allowing for monitoring of the process without opening the box. Operation is exceptionally convenient; workers can easily apply force using the U-shaped handrail, which, in conjunction with the rotating block on the outer surface of the support frame on top of the test bench, allows for flexible rotation of the transparent explosion-proof box, saving effort and increasing efficiency. After closing, the box is quickly fixed by the limiting workpiece on the first limiting post engaging with the second limiting post, preventing displacement during testing. The U-shaped handrail provides a comfortable grip and even force distribution. The support frame and rotating block work together to ensure smooth rotation, reducing operational difficulty. The overall structure not only strengthens safety but also simplifies clamping and testing procedures, while ensuring the testing process is monitorable, thus improving testing safety and efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the front three-dimensional appearance structure of the present invention;

[0017] Figure 2 This is a side perspective view of the present invention.

[0018] Figure 3 This is a schematic diagram of the transparent explosion-proof box structure of the present invention;

[0019] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle;

[0020] Figure 5 This is an exploded view of the mounting plate of the present invention;

[0021] Figure 6 This is a schematic diagram of the sunroof clamping frame structure of the present invention;

[0022] Figure 7 This is a schematic diagram of the exploded structure of the limiting workpiece of the present invention.

[0023] In the diagram: 1. Test bench; 2. Transparent explosion-proof box; 3. First limiting post; 4. Limiting workpiece; 5. Second limiting post; 6. Handrail; 7. Motor; 8. Support base; 9. Support plate; 10. Fixing plate; 11. Reinforcing rib; 12. Bidirectional screw; 13. Rotating block; 14. Support frame; 15. Fixing frame; 16. Fixing block; 17. Toolbox; 18. Driven gear; 19. Drive gear; 20. Sleeve block; 21. Skylight clamping frame; 22. Moving frame; 23. Pull rod; 24. Positioning block; 25. Slide groove; 26. Spring; 27. Box body; 28. Push rod; 29. ​​Pressure sensor; 30. Positioning hole; 31. Mounting plate. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] like Figures 1 to 7 As shown, this embodiment of the invention provides a test bench for the torsion performance of an automotive sunroof, including a test bench 1. A sliding groove 25 is provided inside the test bench 1. A sleeve block 20 is movably installed inside the sliding groove 25. A bidirectional screw 12 is threaded into the sleeve block 20. A motor 7 is fixedly installed on the left side of the test bench 1. A drive gear 19 is fixedly installed at the output end of the motor 7, and one end of the drive gear 19 is movably installed inside the test bench 1. A driven gear 18 is fixedly installed at one end of the bidirectional screw 12, and the driven gear 18 meshes with the drive gear 19. A movable frame 22 is fixedly installed on the top of the sleeve block 20. A mounting plate 31 is movably installed inside the movable frame 22. A sunroof clamping frame 21 is fixedly installed on the top of the mounting plate 31. A push rod 28 is fixedly installed on the outer side of the sunroof clamping frame 21, and the push rod 28 has an L-shaped form. A pressure sensor 29 is fixedly installed on the inner side of the sunroof clamping frame 21.

[0026] First, the sunroof of the car to be tested is fixed in the sunroof clamping frame 21. The pressure sensor 29 on its inner side senses the initial clamping force in advance to ensure that the fixation meets the test requirements. After the test is started, the output end of the motor 7 drives the drive gear 19 to rotate. Because the drive gear 19 meshes with the driven gear 18 at one end of the bidirectional screw 12, the driven gear 18 rotates synchronously and drives the bidirectional screw 12 to rotate in the test bench 1. The reverse thread on the surface of the bidirectional screw 12 drives the outer sleeve block 20 to move in the opposite direction along the inner slide groove 25 of the test bench 1. The sleeve block 20 drives the top fixed moving frame 22 to move synchronously. The movable mounting plate 31 inside moves accordingly and applies a torsional force to the sunroof through the sunroof clamping frame 21. During the process, the L-shaped push rod 28 on the outer side of the sunroof clamping frame 21 moves accordingly to assist in limiting and preventing damage. The pressure sensor 29 monitors the force in real time and judges the torsional force state and structural stability of the sunroof through data to complete the test. Compared with the traditional test bench, this test bench tests the torsional force of the car sunroof. This testing platform enables precise and efficient testing of sunroof torsion performance. Its core advantages are prominent: In the fixing stage, the sunroof clamping frame 21, in conjunction with the inner pressure sensor 29, senses the initial clamping force in real time, ensuring the fixing state matches the actual vehicle installation and avoiding test deviations caused by excessively loose or tight clamping, thus laying a reliable foundation. The drive system, through the motor 7, driven gear 18, and drive gear 19, drives the bidirectional screw 12 to rotate. The reverse thread drive sleeve 20 moves in the opposite direction along the slide groove 25, precisely applying torsional force in conjunction with the moving frame 22 and mounting plate 31. Parameters can be flexibly adjusted to perfectly reproduce the vehicle body torsion condition. It combines protection and monitoring, with the L-shaped push rod 28 assisting in limiting and preventing sample damage. The pressure sensor 29 collects force data in real time, providing accurate basis for structural stability judgment. The entire system achieves automated testing, reducing manual intervention, improving efficiency and result reliability. Furthermore, the sunroof clamping frame 21 is adaptable to multiple vehicle models, reducing equipment replacement costs and meeting the needs of batch testing and R&D verification.

[0027] The movable frame 22 and the mounting plate 31 have positioning holes 30 inside. A positioning block 24 is movably installed inside the positioning hole 30. A box 27 is fixedly installed inside the movable frame 22. A pull rod 23 is fixedly installed at one end of the positioning block 24, and one end of the pull rod 23 passes through the inside of the box 27. A spring 26 is fixedly installed between the box 27 and the positioning block 24.

[0028] When adapting to different car sunroof models or adjusting the torsion test angle, precise adjustment can be achieved through the positioning structure between the movable frame 22 and the mounting plate 31. Both have positioning holes 30 inside. Initially, the spring 26 between the fixed box 27 and the positioning block 24 inside the movable frame 22 naturally extends, pushing the positioning block 24 into the corresponding positioning hole 30 to fix them. When adjustment is needed, pull the pull rod 23 that passes through the box 27, causing the positioning block 24 to move towards the box 27. The spring 26 is compressed, and the positioning block 24 is dislodged, allowing the position of the mounting plate 31 to be adjusted. After adjusting to the target position, release the pull rod 23, and the spring 26 returns to its original position, pushing the positioning block 24 back into the positioning hole 30 to complete the fixation. In subsequent tests, this structure ensures synchronous movement of both, ensuring that the torsional force is accurately transmitted to the sunroof clamping frame 21. Compared with traditional test benches, this test bench, through the positioning structure between the movable frame 22 and the mounting plate 31, can significantly improve the adaptability of car sunroof torsion testing. With its precise adjustment and reliable operation, this structure boasts distinct core advantages. Through the interlocking of the internal positioning holes 30 and positioning blocks 24, the spring 26 within the inner housing 27 of the moving frame 22 naturally extends in the initial state, pushing the positioning block 24 precisely into the positioning hole 30, achieving a stable connection and preventing force transmission deviations caused by loosening during testing. During adjustment, simply pulling the lever 23 compresses the spring 26 and removes the positioning block 24, eliminating the need for complex tools and quickly adjusting the position of the mounting plate 31. This significantly improves the efficiency of adapting to different sunroof models or adjusting the torsion angle. The precise fit between the positioning holes 30 and positioning blocks 24 ensures accurate position locking after adjustment, with no displacement error. Its versatility is extremely high, adaptable to sunroof testing of multiple models, reducing the investment in dedicated fixtures. In subsequent testing, the stable connection ensures synchronous movement of both, allowing the torsional force to be accurately transmitted to the sunroof clamping frame 21, providing crucial support for the authenticity and reliability of test data.

[0029] The test bench 1 has a support frame 14 fixedly installed on its top, a rotating block 13 movably installed on the outer surface of the support frame 14, a transparent explosion-proof box 2 movably installed on the top of the test bench 1, a first limiting post 3 fixedly installed on the front of the transparent explosion-proof box 2, a second limiting post 5 fixedly installed on the front of the test bench 1, a limiting workpiece 4 fixedly installed on the outer surface of the first limiting post 3, and one end of the limiting workpiece 4 is engaged with the outer surface of the second limiting post 5. A handrail 6 is fixedly installed on the outer side of the transparent explosion-proof box 2, and the outer surface of the handrail 6 is U-shaped.

[0030] Before testing, hold the U-shaped handle 6 on the outside of the transparent explosion-proof box 2. Since the transparent explosion-proof box 2 is movably installed on the top of the test bench 1, and the outer surface of the fixed support frame 14 on the top of the test bench 1 is equipped with a rotating block 13, pushing the handle 6 will rotate the box around the rotating block 13 to open it, revealing the test area. After fixing the test window, push the handle 6 in the opposite direction to close the box, and one end of the limiting workpiece 4 on the first limiting post 3 on its front will be engaged with the second limiting post 5 on the front of the test bench 1, completing the limiting fixation. During testing, the transparent explosion-proof box 2 blocks the risk of glass breakage and splashing, and the transparent design facilitates observation of the interior. After testing, remove the limiting workpiece 4, hold the handle 6 to rotate around the rotating block 13 to open the box, and remove the test window. Compared with traditional test benches, this test bench, through the transparent explosion-proof box 2 on the top of the test bench 1 and its supporting structure, achieves three benefits: test safety protection, ease of operation, and process visibility. Significant improvements and advantages: In terms of safety, the transparent explosion-proof box 2 effectively blocks the risk of broken and flying glass during testing, preventing personnel injury. The transparent material combines protection with real-time observation of the internal testing status, allowing for monitoring of the process without opening the box. Operation is exceptionally convenient; staff can easily apply force via the U-shaped handle 6, which, in conjunction with the rotating block 13 on the outer surface of the top support frame 14 of the test platform 1, allows for flexible rotation of the transparent explosion-proof box 2, saving effort and increasing efficiency. After closing, the first limiting post 3 engages with the second limiting post 5 via the limiting workpiece 4, quickly fixing the box and preventing displacement during testing. The U-shaped handle 6 provides a comfortable grip and even force distribution. The support frame 14 and rotating block 13 work together to ensure smooth rotation, reducing operational difficulty. The overall structure not only strengthens safety but also simplifies clamping and testing procedures, while ensuring monitoring of the testing process, thus improving testing safety and efficiency.

[0031] Among them, a support plate 9 is fixedly installed at the bottom of the test bench 1, and a fixing plate 10 is fixedly installed between the two support plates 9.

[0032] Because the support plate 9 is fixedly installed at the bottom of the test platform 1, it can stably support the overall weight of the test platform and the skylight sample, and prevent the test platform from deforming under stress; and because the fixing plate 10 is fixed between the two support plates 9, it can strengthen the rigidity of the bottom structure, prevent the equipment from shaking during the test, thereby ensuring the accuracy of the torsion test and extending the service life of the equipment.

[0033] A reinforcing rib 11 is fixedly installed at the angle between the support plate 9 and the fixing plate 10, and the outer surface of the reinforcing rib 11 is triangular.

[0034] Because the support plate 9 and the fixed plate 10 are fitted with triangular reinforcing ribs 11, the triangular structure has inherent stability characteristics, which can effectively disperse the force at the connection between the two, prevent the bottom of the test bench 1 from deforming or shaking due to load or vibration, further ensure the overall stability of the test bench, and provide support for the accuracy of torsion testing.

[0035] Among them, a support base 8 is fixedly installed on the left side of the test bench 1, and the interior of the support base 8 is U-shaped.

[0036] Since the U-shaped support seat 8 is fixedly installed on the left side of the test bench 1, its U-shaped structure can adapt to and stably support the motor 7 on the left side of the test bench, preventing the motor 7 from vibrating and shifting during operation; at the same time, it enhances the load-bearing capacity of the left side of the test bench, reduces the overall structural shaking, and provides basic support for the stable conduct of the torsion test.

[0037] Among them, a fixed frame 15 is fixedly installed on the back of the test bench 1, a fixed block 16 is movably installed inside the fixed frame 15, and a toolbox 17 is fixedly installed on the back of the fixed block 16.

[0038] Since a fixed frame 15 is fixed to the back of the test bench 1, and a movable fixing block 16 inside the frame connects to the toolbox 17, the toolbox 17 can be firmly fixed to the side of the test bench, and its position can be flexibly adjusted or disassembled. This facilitates the storage of test tools, reduces tool retrieval time, and prevents tools from being lost due to random placement, thereby improving the convenience of test operations.

[0039] The inner diameter of the fixed frame 15 is equal to the outer diameter of the fixed block 16, and the interior of the fixed frame 15 has a smooth surface design.

[0040] Since the inner diameter of the fixing frame 15 is equal to the outer diameter of the fixing block 16, the two can fit tightly together, preventing the toolbox 17 from becoming loose or wobbly after installation. In addition, the smooth surface design inside the fixing frame 15 can reduce friction when adjusting or disassembling the fixing block 16, making the toolbox position adjustment smoother and improving ease of use.

[0041] Working principle and usage process:

[0042] First, the staff fixes the sunroof to be tested within the sunroof clamping frame 21. The initial clamping force of the sunroof is pre-sensed by the pressure sensor 29 inside the sunroof clamping frame 21 to ensure the fixation meets the test requirements. At the start of the test, the motor 7 is activated. The output of the motor 7 drives the drive gear 19 to rotate. Since the drive gear 19 meshes with the driven gear 18 at one end of the bidirectional screw 12, the driven gear 18 rotates synchronously with the drive gear 19, thereby driving the bidirectional screw 12 to rotate inside the test bench 1. When the bidirectional screw 12 rotates, the reverse threads on its surface drive the sleeve block 20, which is fitted onto the outer side, to move along the sliding groove 25 inside the test bench 1. The relative movement of the sleeve block 20 will cause the top fixed movable frame 22 to move synchronously. When the movable mounting plate 31 inside the movable frame 22 moves with the movable frame 22, it will apply a torsional force to the fixed car sunroof through the sunroof clamping frame 21. During this process, the L-shaped push rod 28 on the outside of the sunroof clamping frame 21 will help limit the displacement range of the sunroof with the movement of the clamping frame to avoid excessive torsion and damage to the sample. At the same time, the pressure sensor 29 on the inside of the sunroof clamping frame 21 monitors the change of force value of the sunroof in real time during the torsion process. By monitoring the data, the stress state and structural stability of the sunroof under torsion conditions are judged, and the torsion performance test is completed.

[0043] When adapting to different car sunroof models or adjusting the torsion test angle, the staff uses the positioning structure between the movable frame 22 and the mounting plate 31 to achieve precise adjustment. Both have positioning holes 30 inside. In the initial state, the spring 26 between the fixed box 27 and the positioning block 24 inside the movable frame 22 is in a naturally extended state, pushing the positioning block 24 to move and install in the corresponding positioning hole 30, thus achieving a fixed connection between the movable frame 22 and the mounting plate 31. When it is necessary to adjust the position of the mounting plate 31, the pull rod 23 that runs through the box 27 is pulled. The pull rod 23 drives the positioning block 24 fixed at one end to move towards the box 27. The spring 26 is compressed, and the positioning block 24 is dislodged from the positioning hole 30. At this time, the position of the mounting plate 31 in the movable frame 22 can be flexibly adjusted. After adjusting to the target position, the pull rod 23 is released. The spring 26 elastically returns to its original position and pushes the positioning block 24 to re-insert into the corresponding positioning hole 30, completing the positioning and fixing of the two. During subsequent testing, this structure ensures that the two move synchronously, ensuring that the torsional force is accurately transmitted to the sunroof clamping frame 21.

[0044] Before conducting the test, the staff first grasps the U-shaped handle 6 on the outside of the transparent explosion-proof box 2. Since the transparent explosion-proof box 2 is movably installed on the top of the test platform 1, and the outer surface of the support frame 14 fixed on the top of the test platform 1 is equipped with a rotating block 13, pushing the handle 6 can cause the transparent explosion-proof box 2 to rotate around the rotating block 13 and open, exposing the test area. After fixing the skylight to be tested, push the handle 6 in the opposite direction to close the transparent explosion-proof box 2. Then, one end of the limiting workpiece 4 on the outer surface of the first limiting post 3 on the front is engaged with the outer surface of the second limiting post 5 on the front of the test platform 1 to complete the limiting and fixing of the box. During the test, the transparent explosion-proof box 2 blocks the possible risk of glass breakage and splashing, and the transparent design makes it easy to observe the internal condition. After the test, remove the limiting workpiece 4, grasp the handle 6 and rotate around the rotating block 13 to open the box, and take out the skylight.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0046] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A test bench for the torsion performance of an automobile sunroof, comprising a test bench (1), characterized in that: The test bench (1) has a sliding groove (25) inside, and a sleeve (20) is movably installed inside the sliding groove (25). A double-ended screw (12) is threaded into the sleeve (20). A motor (7) is fixedly installed on the left side of the test bench (1). A drive gear (19) is fixedly installed at the output end of the motor (7), and one end of the drive gear (19) is movably installed inside the test bench (1). A driven gear (18) is fixedly installed at one end of the double-ended screw (12). The driven gear (18) and the drive gear (19) are meshed. A movable frame (22) is fixedly installed on the top of the sleeve (20). An installation plate (31) is movably installed inside the movable frame (22). A sunroof clamping frame (21) is fixedly installed on the top of the installation plate (31). A push rod (28) is fixedly installed on the outside of the sunroof clamping frame (21), and the push rod (28) is L-shaped. A pressure sensor (29) is fixedly installed on the inside of the sunroof clamping frame (21).

2. The automotive sunroof torsion performance testing bench according to claim 1, characterized in that: The movable frame (22) and the mounting plate (31) have positioning holes (30) inside. A positioning block (24) is movably installed inside the positioning hole (30). A box (27) is fixedly installed inside the movable frame (22). A pull rod (23) is fixedly installed at one end of the positioning block (24), and one end of the pull rod (23) passes through the inside of the box (27). A spring (26) is fixedly installed between the box (27) and the positioning block (24).

3. The automotive sunroof torsion performance testing bench according to claim 1, characterized in that: A support frame (14) is fixedly installed on the top of the test bench (1). A rotating block (13) is movably installed on the outer surface of the support frame (14). A transparent explosion-proof box (2) is movably installed on the top of the test bench (1). A first limiting post (3) is fixedly installed on the front of the transparent explosion-proof box (2). A second limiting post (5) is fixedly installed on the front of the test bench (1). A limiting workpiece (4) is fixedly installed on the outer surface of the first limiting post (3), and one end of the limiting workpiece (4) is snapped onto the outer surface of the second limiting post (5). A handrail (6) is fixedly installed on the outer side of the transparent explosion-proof box (2), and the outer surface of the handrail (6) is U-shaped.

4. The automotive sunroof torsion performance testing bench according to claim 1, characterized in that: A support plate (9) is fixedly installed at the bottom of the test bench (1), and a fixing plate (10) is fixedly installed between the two support plates (9).

5. The automotive sunroof torsion performance testing bench according to claim 4, characterized in that: A reinforcing rib (11) is fixedly installed at the angle between the support plate (9) and the fixing plate (10), and the outer surface of the reinforcing rib (11) presents a triangular shape.

6. The automotive sunroof torsion performance testing bench according to claim 1, characterized in that: A support base (8) is fixedly installed on the left side of the test bench (1), and the inside of the support base (8) is U-shaped.

7. The automotive sunroof torsion performance testing bench according to claim 1, characterized in that: A fixed frame (15) is fixedly installed on the back of the test bench (1), a fixed block (16) is movably installed inside the fixed frame (15), and a toolbox (17) is fixedly installed on the back of the fixed block (16).

8. The automotive sunroof torsion performance testing bench according to claim 7, characterized in that: The inner diameter of the fixed frame (15) is equal to the outer diameter of the fixed block (16), and the interior of the fixed frame (15) has a smooth surface design.

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