An impact resistance detection device for an automobile anti-collision beam

Abstract

The present invention relates to the field of automobile parts performance testing, and in particular to a device for testing the impact resistance of automobile anti-collision beams, including a support frame, etc. The present invention describes a device for testing the impact resistance of automobile anti-collision beams, wherein a moving mechanism can drive a main hydraulic rod and an auxiliary hydraulic rod to push a pressure block to successively impact an anti-collision beam test piece multiple times at different angles, simulating the impact resistance testing of continuous collisions in a real use environment. At the same time, under the combined control of a wedge-shaped push block, a wedge-shaped slider, and a side support block, the pressure block can be adjusted to a corresponding angle to complete the collision, thereby overcoming the shortcoming of existing automobile anti-collision beam anti-impact performance testing devices that cannot perform impact resistance testing in combination with various factors in a real use environment, thereby improving the usable value of the impact resistance test results of the anti-collision beam test piece.

Description

Technical Field

[0001] The present invention relates to the field of automobile parts performance testing, and in particular to a device for testing the impact resistance of an automobile anti-collision beam. Background Art

[0002] The impact resistance testing of automobile anti-collision beams is a core link in ensuring the passive safety of vehicles. Its technical background involves multiple aspects such as material properties, structural design, experimental methods and simulation verification. The anti-collision beam is the first protective barrier during a vehicle collision. Qualified impact resistance can effectively absorb collision energy, thereby reducing the risk of passenger compartment deformation by 30%-50%. Through testing, it is ensured that the yield strength of the anti-collision beam meets the standard, and the deformation characteristics of the material under the extreme state are verified to prevent the automobile anti-collision beam from brittle fracture and other dangerous situations when a collision occurs in the actual use environment. The test data can provide a basis for the research and development of new materials, promote the balanced development of lightweight and high strength, and promote the continuous improvement of simulation technology. However, the existing automobile anti-collision beam impact resistance testing device cannot combine the various factors that appear in the actual use environment, and thus cannot perform multiple impact resistance testing on the automobile anti-collision beam in a more realistic simulation scenario, resulting in the low utilization value of the impact resistance test results of the anti-collision beam test piece. Summary of the Invention

[0003] In order to overcome the shortcoming that the existing automobile anti-collision beam impact resistance performance testing device cannot perform impact resistance performance testing in combination with various factors that appear in the actual use environment, the present invention provides an automobile anti-collision beam impact resistance performance testing device.

[0004] The technical solution of the present invention is: a device for testing the impact resistance of an automobile anti-collision beam, comprising a support frame, a mounting plate, a moving mechanism, a main hydraulic rod, an auxiliary hydraulic rod, a fixed block, a rotating joint, a connecting rod, a pressure block, a wedge-shaped push block, a wedge slider and a side support block; a mounting plate for fixing the anti-collision beam test piece is fixedly connected to the support frame; the supporting frame is connected to the moving mechanism; a main hydraulic rod and two auxiliary hydraulic rods are connected to the moving mechanism in sequence; the telescopic end of the main hydraulic rod is fixedly connected to the fixed block; a rotating joint is rotatably connected in the fixed block; a connecting rod is connected in the rotating joint; a pressure block is fixed to the connecting rod; the pressure block is fixed to two wedge-shaped push blocks that are symmetrical to each other; a wedge slider corresponding to the number and position of the wedge push blocks is slidably connected to the fixed block; the telescopic end of the auxiliary hydraulic rod is plugged into the corresponding wedge slider; the wedge slider is fixed to the side support block; the side support block is close to the pressure block.

[0005] Furthermore, the moving mechanism consists of a semicircular track, a rotating slider, a semicircular rack, a driving motor and a gear; the semicircular track is fixedly connected to the front side of the support frame; the rotating slider is slidably connected to the semicircular track; the main hydraulic rod and two auxiliary hydraulic rods are jointly installed on the rotating slider; the rear end of the rotating slider is rotatably connected to the support frame through a rotating shaft; the semicircular rack is fixedly connected to the semicircular track; the driving motor is installed on the rotating slider; the output shaft of the driving motor is fixedly connected to the gear; the gear is meshed with the semicircular rack.

[0006] Furthermore, the fixed block is slidably connected to the rotating slider.

[0007] Furthermore, a buffer pad is fixedly connected to one end of each of the two wedge-shaped push blocks facing the corresponding wedge-shaped sliding block.

[0008] Furthermore, a compression spring is fixedly connected between each of the two wedge-shaped sliding blocks and the fixed block.

[0009] Furthermore, the connecting rod is rotatably connected to the rotary joint; a self-locking rotary motor is installed in the rotary joint; and a rotating shaft of the self-locking rotary motor is fixedly connected to the connecting rod.

[0010] Furthermore, an inner cavity structure for heat transfer oil to circulate is provided in the pressure block; and two pipe joint structures that are connected to the inner cavity structure are provided on the pressure block.

[0011] Furthermore, the inner cavity structure of the pressure block is configured as an S-shaped curve structure composed of a plurality of curved structures.

[0012] Furthermore, an electric heater for heating the anti-collision beam test piece is installed on the mounting plate.

[0013] Furthermore, a global temperature measuring instrument for globally monitoring the overall temperature and temperature changes of the anti-collision beam test piece is installed on the support frame.

[0014] Furthermore, a support slide is slidably connected inside the pressure block; two screw rods are rotatably connected to the pressure block; the threaded structures of the two screw rods are screwed to the support slide; an adjusting nut is fixed to each of the two screw rods; and a number of friction bumps are provided on the support slide.

[0015] The beneficial effects are: the present invention describes a device for testing the impact resistance of an automobile anti-collision beam, in which the moving mechanism can drive the main hydraulic rod and the auxiliary hydraulic rod to push the pressure block to continuously impact the anti-collision beam test piece at different angles for multiple times, simulating the impact resistance test of continuous collisions in a real use environment. At the same time, under the combined control of the wedge-shaped push block, the wedge slider and the side support block, the pressure block can be adjusted to the corresponding angle to complete the collision. In addition, the temperature of the pressure block and the anti-collision beam test piece can be adjusted, and the overall temperature and temperature change data of the anti-collision beam test piece can be recorded using a global thermometer. This overcomes the shortcomings of existing automobile anti-collision beam anti-impact performance testing devices that cannot perform impact resistance testing in combination with various factors in the real use environment, and improves the usable value of the impact resistance test results of the anti-collision beam test piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A perspective view for describing the present invention according to an embodiment;

[0017] Figure 2 A perspective view of a rotary slider according to an embodiment of the present invention is described;

[0018] Figure 3 A perspective view of a fixing block according to an embodiment of the present invention is provided;

[0019] Figure 4 A perspective view of a wedge-shaped slider according to an embodiment of the present invention is described;

[0020] Figure 5 A three-dimensional cross-sectional view of a fixing block according to an embodiment of the present invention is described;

[0021] Figure 6 A perspective cross-sectional view of a rotary joint according to an embodiment of the present invention is described;

[0022] Figure 7 A perspective cross-sectional view of a pressure block according to an embodiment of the present invention is described;

[0023] Figure 8 A top view illustrating an initial working state of the present invention according to an embodiment;

[0024] Figure 9 A top view of the rotary slider in the working state after rotation is described according to an embodiment of the present invention;

[0025] Figure 10 A perspective view illustrating the working state of the pressure block after rotation according to an embodiment of the present invention;

[0026] Figure 11 A perspective view of a friction lug according to an embodiment of the present invention is provided;

[0027] Figure 12The following is a perspective view of a supporting slide according to an embodiment of the present invention.

[0028] Figure markings: 1-support frame, 2-mounting plate, 31-semicircular track, 32-rotating slider, 33-semicircular rack, 34-driving motor, 35-gear, 41-main hydraulic rod, 42-auxiliary hydraulic rod, 43-fixed block, 44-rotating joint, 45-connecting rod, 46-pressure block, 4601-inner cavity structure, 4602-pipe joint structure, 47-wedge-shaped push block, 471-buffer pad, 48-wedge-shaped slider, 481-side support block, 49-compression spring, 5-self-locking rotating motor, 6-electric heater, 7-global temperature meter, 81-support slide plate, 82-screw, 83-adjusting nut, 84-friction bump, 9-anti-collision beam test piece. DETAILED DESCRIPTION

[0029] The present invention will be described in detail below with reference to the accompanying drawings.

[0030] Example 1

[0031] The present embodiment is a device for detecting the impact resistance of an automobile anti-collision beam, such as Figures 1-10 As shown, it includes a support frame 1, a mounting plate 2, a moving mechanism, a main hydraulic rod 41, an auxiliary hydraulic rod 42, a fixed block 43, a rotary joint 44, a connecting rod 45, a pressure block 46, a wedge-shaped push block 47, a wedge-shaped slider 48 and a side support block 481; the support frame 1 is fixed with a mounting plate 2 for fixing the anti-collision beam test piece 9; the support frame 1 is connected to a moving mechanism; the moving mechanism is sequentially connected to a main hydraulic rod 41 and two auxiliary hydraulic rods 42; the telescopic end of the main hydraulic rod 41 is fixed with a fixed block 43; the fixed block 43 A rotary joint 44 is connected to the inner rotation; a connecting rod 45 is connected to the rotary joint 44; a pressure block 46 is fixed to the connecting rod 45; a wedge-shaped push block 47 is fixed to the left and right sides of the pressure block 46; wedge-shaped sliders 48 corresponding in number and position to the wedge-shaped push blocks 47 are slidably connected to the fixed block 43; the telescopic ends of the two auxiliary hydraulic rods 42 are initially connected to a corresponding wedge slider 48; a side support block 481 is fixed to each of the two wedge sliders 48; the two side support blocks 481 are initially in close contact with the pressure block 46.

[0032] like Figure 1 and Figure 2As shown, the moving mechanism consists of a semicircular track 31, a rotating slider 32, a semicircular rack 33, a driving motor 34 and a gear 35; the front side of the support frame 1 is fixedly connected to the semicircular track 31; the rotating slider 32 is slidably connected to the semicircular track 31; the main hydraulic rod 41 and the two auxiliary hydraulic rods 42 are jointly installed on the rotating slider 32; the rear end of the rotating slider 32 is rotatably connected to the support frame 1 through a rotating shaft; the semicircular rack 33 is fixedly connected to the semicircular track 31; the driving motor 34 is installed on the rotating slider 32; the output shaft of the driving motor 34 is fixedly connected to the gear 35; the gear 35 is meshed with the semicircular rack 33.

[0033] like Figure 2 、 Figure 3 and Figure 6 As shown, the fixed block 43 is slidably connected to the rotating slider 32, so that the telescopic end of the main hydraulic rod 41 and the fixed block 43 can obtain the lower support force from the rotating slider 32; the two wedge-shaped push blocks 47 are each fixedly connected to a buffer pad 471 at one end facing the corresponding wedge-shaped slider 48; a compression spring 49 is fixedly connected between the two wedge-shaped sliders 48 and the fixed block 43, and the compression spring 49 is sleeved on the outer side of the telescopic end of the corresponding auxiliary hydraulic rod 42; the connecting rod 45 is rotatably connected to the rotary joint 44; a self-locking rotary motor 5 is installed in the rotary joint 44; the rotating shaft of the self-locking rotary motor 5 is fixedly connected to the connecting rod 45.

[0034] When using a vehicle anti-collision beam impact resistance performance testing device of this embodiment, the tester installs the anti-collision beam test piece 9 on the mounting plate 2, and both sides of the anti-collision beam test piece 9 are set as arc surface structures, and then the impact resistance performance test of the anti-collision beam test piece 9 can be carried out.

[0035] First, as Figure 8 As shown, the rotating slider 32 and the main hydraulic rod 41 and auxiliary hydraulic rod 42 connected thereto are in a perpendicular state to the middle part of the anti-collision beam test piece 9, and the pressure block 46 is in a parallel state to the middle part of the anti-collision beam test piece 9. Then the main hydraulic rod 41 pushes the fixed block 43 to move backward along the rotating slider 32, and the fixed block 43 pushes the pressure block 46 to perform the first collision impact on the middle part of the anti-collision beam test piece 9 through the rotating joint 44 and the connecting rod 45. At the same time, the auxiliary hydraulic rods 42 on both sides respectively push the wedge-shaped slider 48 connected thereto to drive the side support block 481 to move backward with the pressure block 46, so that the main hydraulic rod 41 cooperates with the two auxiliary hydraulic rods 42 to jointly push the pressure block 46 to squeeze the middle part of the anti-collision beam test piece 9. In this process, the two sides of the pressure block 46 are supported by the two auxiliary hydraulic rods 42 respectively, so that the pressure block 46 will not deflect around the axis of the rotating joint 44, completing the first collision impact of the impact resistance test of the anti-collision beam test piece 9.

[0036] After that, the main hydraulic rod 41 and the auxiliary hydraulic rod 42 respectively drive the fixed block 43, the rotary joint 44, the connecting rod 45, the pressure block 46 and the wedge-shaped slider 48 connected thereto to move in the opposite direction for reset, and then the drive motor 34 drives the gear 35 to rotate, and the gear 35 engages the semicircular rack 33 to drive the rotary slider 32 to rotate along the semicircular track 31 around the axis of the rotating shaft connecting it to the support frame body 1, as shown in FIG. Figure 9 As shown, at this time, the rotary slider 32 and the main hydraulic rod 41 and the auxiliary hydraulic rod 42 connected thereto are in an inclined state and aligned with the side of the anti-collision beam test piece 9. Then, according to the above steps, the main hydraulic rod 41 pushes the fixed block 43 to move backward along the rotary slider 32, and the fixed block 43 pushes the pressure block 46 through the rotary joint 44 and the connecting rod 45 to perform a second collision impact on the corresponding side of the anti-collision beam test piece 9. At the same time, the telescopic ends of the auxiliary hydraulic rods 42 on both sides do not extend outward, and the backward moving fixed block 43 will push the wedge slider 48 to move backward together through the compression spring 49, so that the wedge slider 48 is separated from the telescopic end of the auxiliary hydraulic rod 42.

[0037] During the process of the pressure block 46 colliding with the anti-collision beam test piece 9, the side of the pressure block 46 away from the middle of the anti-collision beam test piece 9 preferentially contacts the anti-collision beam test piece 9. At this time, the wedge-shaped push block 47 of the pressure block 46 away from the middle of the anti-collision beam test piece 9 fails to obtain support from the corresponding auxiliary hydraulic rod 42. Therefore, the pressure block 46 will be blocked by the anti-collision beam test piece 9 and drive the connecting rod 45 and the rotary joint 44 to rotate around the axis of the rotary joint 44, so that the wedge-shaped push block 47 of the pressure block 46 away from the middle of the anti-collision beam test piece 9 pushes the corresponding wedge slider 48 to move forward during the rotation. At the same time, the wedge slider 48 drives the corresponding compression spring 49 to be compressed, and At the same time, the telescopic end of the auxiliary hydraulic rod 42 on the same side as the wedge-shaped slider 48 quickly extends outward to the front area of the alignment fixing block 43. When the wedge-shaped slider 48 moves forward to contact the telescopic end of the auxiliary hydraulic rod 42, the pressure block 46 can no longer push the wedge-shaped slider 48 to move. At this time, the pressure block 46 is in a tangent state to the contact arc surface of the anti-collision beam test piece 9, increasing the contact area of the pressure block 46 and the contact arc surface of the anti-collision beam test piece 9. The main hydraulic rod 41 cooperates with the auxiliary hydraulic rod 42 to push the pressure block 46 to squeeze the anti-collision beam test piece 9 in the current state, completing the second collision impact of the impact resistance test of the anti-collision beam test piece 9.

[0038] Then continue to adjust the tilt angle of the rotating slider 32 and the main hydraulic rod 41 and auxiliary hydraulic rod 42 connected to it and the anti-collision beam test piece 9 relative to the side area according to the above steps, so as to control the pressure block 46 to complete multiple collision impacts of the impact resistance performance test of the anti-collision beam test piece 9 at different collision angles, simulate the impact resistance performance test of continuous collisions in the actual use environment, and make the impact resistance performance test results of the anti-collision beam test piece 9 have higher utilization value.

[0039] Before controlling the pressure block 46 to perform the impact resistance test on the anti-collision beam test piece 9, the connecting rod 45 and the pressure block 46 connected thereto can be driven to rotate by the self-locking rotary motor 5, such as Figure 10 As shown, the pressure block 46 is switched from a horizontal state to a vertical state, which reduces the contact area of the pressure block 46 when it collides with the anti-collision beam test piece 9, and realizes that the collision area of the pressure block 46 can be changed without replacing the pressure block 46, so that the impact resistance performance testing of the anti-collision beam test piece 9 is more perfect. When the pressure block 46 is switched to a vertical state, the telescopic ends of the auxiliary hydraulic rods 42 on both sides push the two wedge-shaped sliders 48 to move backward until the two side support blocks 481 on the two wedge-shaped sliders 48 are aligned with the front area of the pressure block 46. The two side support blocks 481 provide anti-flip limit support for the left and right sides of the pressure block 46, respectively, so that the pressure block 46 will not flip left and right when it collides with the anti-collision beam test piece 9.

[0040] When the main hydraulic rod 41 pushes the vertical pressure block 46 to collide with the anti-collision beam test piece 9, the pressure block 46 will be knocked out of the groove structure on the anti-collision beam test piece 9. At this time, the pressure block 46 is likely to be embedded and stuck in the groove structure of the anti-collision beam test piece 9. Therefore, before the main hydraulic rod 41 pulls the pressure block 46 to leave the anti-collision beam test piece 9 in the opposite direction, the telescopic ends of the two auxiliary hydraulic rods 42 are required to push the two wedge-shaped sliders 48 to continue to move backward until the two side support blocks 481 on the two wedge-shaped sliders 48 are close to the anti-collision beam test piece The surface of the test piece 9 provides limiting support for it, and then the main hydraulic rod 41 pulls the pressure block 46 in the opposite direction to disengage from the groove structure of the anti-collision beam test piece 9. During this process, the groove structure of the anti-collision beam test piece 9 on both sides is limited by the two side support blocks 481. The clamped pressure block 46 will not pull the groove structure of the anti-collision beam test piece 9 in the opposite direction to cause deformation during the reverse process, so that the groove structure generated by the collision of the anti-collision beam test piece 9 will not be damaged, which is convenient for subsequent testers to conduct corresponding force analysis on the groove structure generated by the collision of the anti-collision beam test piece 9.

[0041] Example 2

[0042] On the basis of Example 1, Figure 1-Figure 7As shown, the pressure block 46 of this embodiment is provided with an inner cavity structure 4601; the pressure block 46 is provided with two pipe joint structures 4602 which are commonly connected to the inner cavity structure 4601, and the two pipe joint structures 4602 are commonly connected to the heat transfer oil circulation and transportation equipment; the inner cavity structure 4601 of the pressure block 46 is configured as an S-shaped curve structure composed of multiple curved structures, which increases the total opening length of the inner cavity structure 4601 in the pressure block 46, and improves the heat transfer efficiency of the pressure block 46 when the heat transfer oil flows through the inner cavity structure 4601; two electric heaters 6 are installed on the mounting plate 2.

[0043] Since temperature changes will affect the impact resistance of the anti-collision beam test piece 9, in actual use environment, when the anti-collision beam test piece 9 is installed in the front part of the car, the anti-collision beam test piece 9 will be affected by the heat radiation from the power unit and cause its own temperature to rise.

[0044] Therefore, in this embodiment, before the impact resistance test of the anti-collision beam test piece 9 is carried out, the two electric heaters 6 first heat the anti-collision beam test piece 9 together until the temperature of the anti-collision beam test piece 9 is the same as the temperature increased by the heat radiation of the power unit in the actual use environment, so that the anti-collision beam test piece 9 is in a condition closer to the actual use environment to participate in the impact resistance test. At the same time, the external heat transfer oil circulation and transportation equipment continuously circulates the heat transfer oil to the inner cavity structure 4601 of the pressure block 46 through the two pipe joint structures 4602. When it is necessary to simulate the actual use environment of the pressure block 46 in high temperature and exposure in summer, the external heat transfer oil circulation and transportation equipment passes the heat transfer oil through the heat transfer oil The pressure block 46 is heated to a corresponding high temperature state. When it is necessary to simulate the pressure block 46 in a cold and icy actual use environment in winter, the external heat transfer oil circulation and delivery equipment cools the pressure block 46 to a corresponding low temperature state through the heat transfer oil. Then, the pressure block 46 that has completed the corresponding temperature change can be used to test the anti-collision beam test piece 9 that has completed the corresponding temperature change. Under the condition of adding factors simulating the actual use environment temperature, the impact resistance performance of the anti-collision beam test piece 9 is tested, so that the tester can observe whether there is a large change in the impact resistance of the anti-collision beam test piece 9 under the influence of different ambient temperatures, thereby improving the utilization value of the impact resistance test results of the anti-collision beam test piece 9.

[0045] like Figure 1-Figure 7 As shown, a global temperature measuring instrument 7 for globally monitoring the overall temperature and temperature changes of the anti-collision beam test piece 9 is installed on the support frame 1 of this embodiment.

[0046] In this embodiment, when the heated pressure block 46 is conducting an impact resistance test on the anti-collision beam test piece 9, the temperature on the pressure block 46 will be quickly transferred to the collision impact area of the anti-collision beam test piece 9 and the surrounding all-directional areas. During this process, the global thermometer 7 can record the temperature change data of the collision impact area of the anti-collision beam test piece 9 and the surrounding all-directional areas. The tester analyzes the temperature change record data of the anti-collision beam test piece 9 provided by the global thermometer 7 to observe whether the deformation degree of the collision area of the anti-collision beam test piece 9 will be aggravated due to temperature changes, and judge whether the impact resistance of the material used in the current anti-collision beam test piece 9 is greatly affected by temperature changes, thereby further improving the usable value of the impact resistance test results of the anti-collision beam test piece 9.

[0047] Example 3

[0048] On the basis of Example 1, Figures 1-6 as well as Figure 11 and Figure 12 As shown, the pressure block 46 of this embodiment is slidably connected to a support slide 81; two screw rods 82 are rotatably connected to the pressure block 46; the threaded structures of the two screw rods 82 are screwed to the support slide 81; an adjusting nut 83 is fixed to each of the two screw rods 82; and a number of friction protrusions 84 are provided on the support slide 81.

[0049] In this embodiment, in the initial state, the friction protrusion 84 is hidden in the pressure block 46, and the rear surface of the friction protrusion 84 is flush with the rear surface of the pressure block 46. When the pressure block 46 collides with the anti-collision beam test piece 9, the main hydraulic rod 41 provides friction resistance on the pressure block 46 by the friction protrusion 84, so as to avoid the pressure block 46 from slipping during the collision with the anti-collision beam test piece 9 and affecting the test effect of the impact resistance test. In addition, the tester can also use the wrench he carries to turn the adjusting screw The nut 83 drives the screw rod 82 to rotate, and the screw rod 82 drives the supporting slide plate 81 and the friction protrusion 84 connected to it to move backward, so that the friction protrusion 84 is exposed outward from the pressure block 46. At this time, the friction protrusion 84 forms a raised structure on the pressure block 46. When the pressure block 46 collides with the anti-collision beam test piece 9, the friction protrusion 84 on the pressure block 46 simulates the raised structure of the irregular object and collides with the anti-collision beam test piece 9, which expands the real-life use environment simulation scenario of impact resistance performance testing.

[0050] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes made to the contents described in the claims of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A device for testing the impact resistance of an automobile anti-collision beam, comprising a support frame (1); a mounting plate (2) for fixing an anti-collision beam test piece (9) is fixedly connected to the support frame (1); Its characteristics are: The supporting frame (1) further comprises a moving mechanism, a main hydraulic rod (41), an auxiliary hydraulic rod (42), a fixed block (43), a rotary joint (44), a connecting rod (45), a pressure block (46), a wedge-shaped push block (47), a wedge-shaped slide block (48) and a side support block (481); the supporting frame (1) is connected to the moving mechanism; a main hydraulic rod (41) and two auxiliary hydraulic rods (42) are connected to the moving mechanism in sequence; the telescopic end of the main hydraulic rod (41) is fixedly connected to the fixed block (43); the fixed block (43) is rotatably connected to the rotary joint ( 44); a connecting rod (45) is connected to the rotary joint (44); a pressure block (46) is fixed to the connecting rod (45); the pressure block (46) is fixed to two mutually symmetrical wedge-shaped push blocks (47); a wedge-shaped slider (48) corresponding in number and position to the wedge-shaped push blocks (47) is slidably connected to the fixed block (43); the telescopic end of the auxiliary hydraulic rod (42) is plugged into the corresponding wedge slider (48); a side support block (481) is fixed to the wedge slider (48); the side support block (481) is in close contact with the pressure block (46); The moving mechanism consists of a semicircular track (31), a rotating slider (32), a semicircular rack (33), a driving motor (34) and a gear (35); the front side of the support frame (1) is fixedly connected to the semicircular track (31); the rotating slider (32) is slidably connected to the semicircular track (31); the main hydraulic rod (41) and the two auxiliary hydraulic rods (42) are jointly installed on the rotating slider (32); the rear end of the rotating slider (32) is rotatably connected to the support frame (1) through a rotating shaft; the semicircular rack (33) is fixedly connected to the semicircular track (31); the driving motor (34) is installed on the rotating slider (32); the output shaft of the driving motor (34) is fixedly connected to the gear (35); the gear (35) is meshed with the semicircular rack (33).

2. The device for testing the impact resistance of an automobile anti-collision beam according to claim 1, characterized in that: The fixed block (43) is slidably connected to the rotary slider (32).

3. The device for testing the impact resistance of an automobile anti-collision beam according to claim 1, characterized in that: A buffer pad (471) is fixedly connected to one end of each of the two wedge-shaped push blocks (47) facing the corresponding wedge-shaped sliding block (48).

4. The device for testing the impact resistance of an automobile anti-collision beam according to claim 1, characterized in that: A compression spring (49) is fixedly connected between each of the two wedge-shaped sliders (48) and the fixed block (43).

5. The device for testing the impact resistance of an automobile anti-collision beam according to claim 1, characterized in that: The connecting rod (45) is rotatably connected to the rotary joint (44); a self-locking rotary motor (5) is installed in the rotary joint (44); and the rotating shaft of the self-locking rotary motor (5) is fixedly connected to the connecting rod (45).

6. The device for testing the impact resistance of an automobile anti-collision beam according to any one of claims 1 to 5, characterized in that: An inner cavity structure (4601) for heat transfer oil to circulate is provided in the pressure block (46); and two pipe joint structures (4602) that are connected to the inner cavity structure (4601) are provided on the pressure block (46).

7. The device for testing the impact resistance of an automobile anti-collision beam according to claim 6, characterized in that: The inner cavity structure (4601) of the pressure block (46) is configured as an S-shaped curve structure composed of a plurality of curved structures; an electric heater (6) for heating the anti-collision beam test piece (9) is mounted on the mounting plate (2).

8. The device for testing the impact resistance of an automobile anti-collision beam according to claim 7, characterized in that: A global temperature measuring instrument (7) for globally monitoring the overall temperature and temperature changes of the anti-collision beam test piece (9) is installed on the support frame (1).

9. The device for testing the impact resistance of an automobile anti-collision beam according to claim 8, characterized in that: A support slide plate (81) is slidably connected inside the pressure block (46); a screw rod (82) is rotatably connected to the pressure block (46); a threaded structure of the screw rod (82) is screwed to the support slide plate (81); an adjusting nut (83) is fixed to the screw rod (82); and a plurality of friction protrusions (84) are provided on the support slide plate (81).

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