Automobile rear anti-collision beam strength testing device

Abstract

The invention discloses an automobile rear anti-collision beam strength testing device, and belongs to the technical related field of testing equipment, the automobile rear anti-collision beam strength testing device comprises a lifting frame and a fixed base, the lifting frame is fixedly installed on the outer surface of the upper end of the fixed base, and the inner side of the lifting frame is movably provided with a punch piece used for impacting a test piece; a rotating body is movably installed on the inner side of the punch piece, four sets of punch bodies are fixedly installed on the outer surface of the side edge of the rotating body, a push plate used for installing a test piece is movably installed at the upper end of the fixed base, and a butt joint clamping base is fixedly installed in the middle of the outer surface of the upper end of the push plate. Two groups of mounting pieces matched with the mounting seats for use are mounted on the outer surface of the butt joint clamping seat in a sliding manner; according to the automobile rear anti-collision strength testing device, the strength testing operation of different multi-angle point positions of automobile rear anti-collision can be completed, the testing effect can better simulate a real scene, the vertical impact testing effect can be improved, the automobile rear anti-collision strength testing device can be accelerated to a certain testing speed within a short distance, and the high-speed impact effect can be better simulated.

Description

Technical Field

[0001] The present invention belongs to the field of testing equipment technology, and more specifically relates to a vehicle rear anti-collision beam strength testing device. Background Art

[0002] As the automotive industry continues to increase safety requirements, the impact resistance of vehicle body components, such as the rear impact beam, has become a core indicator of vehicle passive safety. As a key component in the vehicle's rear impact energy absorption system, the rear impact beam must absorb energy through plastic deformation in low-speed collisions, reducing the risk of passenger compartment intrusion and lowering repair costs.

[0003] The patent document with the announcement number CN108896410B records a device for testing the bending of an anti-collision beam, and in particular relates to a device for testing the bending of an automobile anti-collision beam. The technical problem to be solved is: to provide a device for testing the bending of an automobile anti-collision beam that can reduce labor intensity and improve the efficiency of anti-collision beam testing. The technical solution is as follows: A device for testing the bending of an automobile anti-collision beam, comprising a support leg, a base plate, a slider, a first spring, a first vertical plate, a support plate, a hinge plate, etc.; the left and right sides of the bottom of the base plate are connected to support legs, the left and right sides of the top of the base plate are provided with a slide groove, a slider is provided in the slide groove, and a first spring is connected between the outer side of the slider and the base plate. The downward movement of the first rubber ball can test the degree of bending of the automobile anti-collision beam, and the upward movement of the second rubber ball can test the degree of bending of the automobile anti-collision beam.

[0004] The above-mentioned anti-collision beam bending test device has certain shortcomings when used. The above-mentioned anti-collision beam bending test device adopts a vertical structure design, so that it can only perform fixed-angle impact tests when performing anti-collision beam strength tests. In actual usage scenarios, the anti-collision beam will collide with objects at different angles; at the same time, the traditional vertical test structure has a short test distance, which makes it impossible for the test object to be hit at the corresponding speed within a short distance, affecting its strength test effect; secondly, the traditional test device only has a single test structure, and when performing automobile rear anti-collision beam strength test operations, it cannot simulate different types of impact test structures, which reduces its flexibility in use. Summary of the Invention

[0005] The purpose of the present invention is to provide a vehicle rear anti-collision beam strength testing device that can solve the existing problems.

[0006] The problems solved by the present invention are:

[0007] 1. The above-mentioned anti-collision beam bending test device adopts a vertical structure design, so it can only perform fixed-angle impact tests when conducting anti-collision beam strength tests. In actual usage scenarios, the anti-collision beam will collide with objects at different angles; at the same time, the traditional vertical test structure has a short test distance, which makes it impossible for the test object to be hit at the corresponding speed within a short distance, affecting its strength test effect; secondly, the traditional test device only has a single test structure. When conducting automobile rear anti-collision beam strength test operations, it is unable to simulate different types of impact test structures, reducing its flexibility in use.

[0008] The purpose of the present invention can be achieved through the following technical solutions:

[0009] A vehicle rear anti-collision beam strength testing device comprises a lifting frame and a fixed base, the lifting frame is fixedly mounted on the upper outer surface of the fixed base, a punch piece for impacting a test piece is movably mounted on the inner side of the lifting frame, a rotating body is movably mounted on the inner side of the punch piece, four groups of punch bodies are fixedly mounted on the side outer surface of the rotating body, a push plate for mounting the test piece is movably mounted on the upper end of the fixed base, a docking card seat is fixedly mounted on the middle position of the upper outer surface of the push plate, and two groups of mounting pieces for cooperating with the mounting seat are slidably mounted on the outer surface of the docking card seat, the mounting piece comprises a slide and a mounting plate, and the mounting plate is movably mounted on the upper end of the slide.

[0010] As a further technical solution of the present invention, the mounting plate and the slide are movably connected through a rotating seat, and a lifting screw is movably installed on both sides of the rotating seat between the mounting plate and the slide, and a side rotating support plate is movably installed on the upper end of the lifting screw. The user fixes the two mounting seats of the test piece on the two mounting pieces of the docking card seat respectively. First, the movement of the slide on the docking card seat can be used to adjust the distance between the two groups of mounting pieces, so that the mounting pieces are adjusted accordingly according to the position of the mounting seat. At the same time, when the punch piece performs an impact test on the surface of the test piece, the rotating seat can be used to adjust the angle of the mounting plate to complete the tilt adjustment of the test piece, so that the punch piece can perform a tilt impact test on the test piece. Secondly, the rotation of the lifting screw is used to adjust the height of the side rotating support plate, so that the side rotating support plate supports the bottom of the mounting plate respectively, and at the same time controls the use angle of the mounting plate to avoid the impact force directly acting on the rotating seat when performing the impact test.

[0011] As a further technical solution of the present invention, the surfaces of the four groups of punch bodies are respectively arc-shaped, conical, flat and spherical structures. The punch part and the rotating body are movably connected by a docking turning rod, and a fixed pin is installed between the punch part and the rotating body. A water tank is provided inside the fixed base, and a spray rack used in conjunction with the water tank is provided at the upper end of the fixed base. Several groups of support bars are installed on the inner side of the fixed base at the upper part of the water tank. The rotating body can be rotated and adjusted by using the setting of the docking turning rod, so as to adjust the position of the four groups of punch bodies installed on the rotating body. The four groups of punch bodies are respectively arc-shaped, conical, flat and spherical structures. When conducting anti-collision beam impact test, impact objects of different shapes can be simulated to improve the comprehensiveness of the test. The fixed pin can be used to fix the rotating body after rotation.

[0012] As a further technical solution of the present invention, the punch part and the lifting frame are movably connected through a limiting slide, the punch part is arranged at the lower end of the limiting slide, and a docking clamp is fixedly installed on the upper end of the punch part. A cylinder body is provided in the middle part of the upper end of the lifting frame for use with the punch part. The cylinder body is used to push the punch part through a pneumatic head and a pneumatic propulsion structure, so that the punch part carries the punch body downward at high speed, so that the punch body can simulate a high-speed impact scene within a short distance and complete a high-speed impact test on the surface of the test piece.

[0013] As a further technical solution of the present invention, a pneumatic punch is movably installed in the middle of the lower end of the cylinder body, a lifting plate is movably installed on the inner side of the lifting frame, and a movable clamping head is provided at the bottom of the lifting plate. The upper end of the limiting slide is provided with a docking slot for cooperating with the movable clamping head. The docking slot of the limiting slide can be fixed by the movable clamping head of the lifting plate. After the punch part completes an impact test, the limiting slide can be pulled upward by the lifting plate, thereby completing the reset operation of the punch part.

[0014] As a further technical solution of the present invention, the inner side of the lifting frame is provided with a slide groove used in conjunction with the lifting plate and the limiting slide plate. The upper end of the lifting plate and the lifting frame are connected by two lifting cables. One end of the lifting cable completes the winding or releasing operation through the winding machine, thereby controlling the use height of the lifting plate. The movable clamping head at the bottom of the lifting plate is driven by an electric structure. The movable clamping head is driven by a motor and a screw rod, so that the movable clamping head can complete the docking and separation operations of the docking slot.

[0015] As a further technical solution of the present invention, a first plug and a second plug are movably installed on the inner side of the pneumatic plug, the first plug is located on one side of the second plug, and the first plug and the second plug are elastically connected by a spring. The first plug and the second plug in the pneumatic plug can be used to complete the docking and release operations of the docking clamp. When the pneumatic plug is ejected quickly, the release operation of the docking clamp is completed by using the contact between the first plug and the second plug and the circular notch in the middle of the lifting plate.

[0016] As a further technical solution of the present invention, the first and second plugs are both L-shaped structures, and one end of the first and second plugs is provided with an arc-shaped clamp, and the inner side of the docking clamp is provided with an arc-shaped groove for cooperating with the first and second plugs. When the lifting plate and the limit slide are docked and fixed, the docking clamp passes through the circular groove of the lifting plate, and the lifting plate drives the docking clamp to move upward, so that the docking clamp is inserted into the inner side of the pneumatic plug, so that the arc-shaped clamp is clamped in the arc-shaped groove. When the pneumatic plug is ejected outward under the action of air pressure, the pneumatic plug passes through the circular groove of the lifting plate, so that the first and second plugs move inward under the action of external force, thereby causing the two groups of arc-shaped clamps to move toward each other, so that the arc-shaped clamp is separated from the arc-shaped groove, completing the separation operation between the docking clamp and the pneumatic plug.

[0017] As a further technical solution of the present invention, the punch part is movably installed at the lower end of the limiting slide, a fixing bracket is fixedly installed at the upper end of the limiting slide, a docking clamp is fixedly installed at the middle part of the upper end of the fixing bracket, and a fixing bracket is arranged at the upper end of the limiting slide so that the docking clamp is indirectly installed at the middle part of the upper end of the fixing bracket. By adjusting the position of the punch part, the impact test of the test piece in different positions can be met.

[0018] As a further technical solution of the present invention, a clamping plate is provided at the upper end of the punch part, and a telescopic sleeve is movably installed between the punch part and the clamping plate. A turntable is movably installed at the upper end of the clamping plate. The user rotates the turntable to drive the telescopic sleeve using a threaded structure to move up and down. The telescopic sleeve is used to adjust the use height of the clamping plate. After the punch part moves to the corresponding position, the locking and fixation between the punch part and the limiting slide are completed.

[0019] Beneficial effects of the present invention:

[0020] 1. By setting the mounting parts and the pressing plate, when the automobile rear anti-collision beam strength test device is used, it can complete the strength test operation of the automobile rear anti-collision at different angles and points, making its test effect more simulate the real scene;

[0021] During operation, first, the distance between the two sets of mounting parts can be adjusted by moving the slide on the docking card seat, so that the mounting parts can be adjusted accordingly according to the position of the mounting seats. The user fixes the two mounting seats of the test piece on the two mounting parts of the docking card seat respectively. At the same time, when the punch piece performs an impact test on the surface of the test piece, the angle of the mounting plate can be adjusted by using the rotating seat to complete the tilt adjustment of the test piece, so that the punch piece can perform a tilt impact test on the test piece. Secondly, the height of the side rotating support plate is adjusted by rotating the lifting screw rod, so that the side rotating support plate can support the bottom of the mounting plate respectively. The side rotating support plate can adjust the surface angle of the mounting plate according to the angle of the mounting plate. Make corresponding rotation adjustments, support the bottom of the mounting plate through the side rotation support plate, and control the use angle of the mounting plate at the same time. When performing impact tests, avoid the impact force acting directly on the rotating seat. Secondly, a fixing bracket is set at the upper end of the limiting slide, so that the docking clamp is indirectly installed in the middle of the upper end of the fixing bracket. The position of the punch can be adjusted by pushing the punch part to meet the impact test of the test piece in different positions. The user rotates the turntable to make the turntable drive the telescopic sleeve using the threaded structure to move up and down, and uses the telescopic sleeve to adjust the use height of the clamping plate. After the punch part moves to the corresponding position, the locking fixation between the punch part and the limiting slide is completed.

[0022] 2. By setting up a docking clamp and a pneumatic ram, the vertical impact test effect of the automobile rear anti-collision beam strength test device is improved when it is used, so that it can be accelerated to a certain test speed within a short distance, so that it can better simulate the high-speed impact effect;

[0023] When in use, the cylinder body is used to propel the punch piece through the pneumatic ram through the pneumatic propulsion structure, so that the punch piece carries the punch body and moves downward at high speed, so that the punch body can simulate a high-speed impact scene within a short distance, and complete the high-speed impact test on the surface of the test piece. The first and second rams in the pneumatic ram can be used to complete the docking and release operations of the docking clamp. When the pneumatic ram is quickly ejected, the contact between the first and second rams and the circular notch in the middle of the lifting plate is used to complete the release operation of the docking clamp. When the lifting plate and the limit slide are docked and fixed, the docking clamp is The lifting plate drives the docking clamp to move upward through the circular slot of the lifting plate, so that the docking clamp is inserted into the inner side of the pneumatic ram, and the arc clamp is clamped in the arc slot, completing the fixing operation of the punch part. When the pneumatic ram is ejected outward under the action of air pressure, the pneumatic ram passes through the circular slot of the lifting plate, so that the first ram and the second ram move inward under the action of external force, thereby causing the two groups of arc clamps to move toward each other, so that the arc clamp is separated from the arc slot, completing the separation operation between the docking clamp and the pneumatic ram, so that the punch part hits the rear anti-collision beam of the car at high speed.

[0024] 3. By providing a rotating body and a punch body, the automobile rear anti-collision beam strength test device has a rotation adjustment structure when in use, which can simulate different impact structures and improve the automobile rear anti-collision beam strength test effect;

[0025] During operation, the rotating body can be rotated and adjusted by using the setting of the docking rotating rod, thereby adjusting the position of the four sets of punch bodies installed on the rotating body. The four sets of punch bodies are arc-shaped, conical, flat and spherical structures respectively. When conducting anti-collision beam impact tests, they can simulate impact objects of different shapes to improve the comprehensiveness of the test. The fixed pin can be used to fix the rotating body after rotation;

[0026] Secondly, after the impact test, the surface temperature of the test piece will increase, which will affect the structural strength of the test piece. The spray rack is used to spray and cool the surface of the test piece so that the temperature of the test piece can be quickly restored. At the same time, the drainage groove on the surface of the push plate can drain the water into the inside of the water tank to facilitate its recycling. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described below with reference to the accompanying drawings.

[0028] Figure 1 This is a schematic diagram of the overall structure of a vehicle rear anti-collision beam strength testing device according to the present invention;

[0029] Figure 2 This is a planar structural diagram of a mounting component in a vehicle rear anti-collision beam strength testing device according to the present invention;

[0030] Figure 3 This is a planar structural diagram of a punch component in a vehicle rear anti-collision beam strength testing device according to the present invention;

[0031] Figure 4 This is a partial structural diagram of a lifting frame in a vehicle rear anti-collision beam strength testing device of the present invention;

[0032] Figure 5 This is a planar structural diagram of a pneumatic ram in a vehicle rear anti-collision beam strength testing device according to the present invention;

[0033] Figure 6 This is a planar structural diagram of a fixing frame in a vehicle rear anti-collision beam strength testing device according to the present invention;

[0034] Figure 7 This is a partial structural diagram of a punch component in a vehicle rear anti-collision beam strength testing device according to the present invention;

[0035] Figure 8 This is an overall structural diagram of a test piece in a vehicle rear anti-collision beam strength testing device according to the present invention;

[0036] Figure 9The present invention is a state change diagram of a vehicle rear anti-collision beam strength testing device when in use.

[0037] In the figure: 1. Water tank; 2. Push plate; 3. Docking card seat; 4. Mounting part; 5. Lifting frame; 6. Punch part; 7. Lifting plate; 8. Cylinder body; 9. Lifting cable; 10. Limiting slide plate; 11. Spray rack; 12. Fixed base; 13. Support bar; 14. Slide seat; 15. Lifting screw rod; 16. Side rotating support plate; 17. Rotating seat; 18. Mounting plate; 19. Rotating body; 20. Punch body; 21. Fixed pin; 22. Docking rotating rod; 23. Docking card head; 24. Pneumatic ram; 25. Docking slot; 26. First ram; 27. Second ram; 28. Spring; 29. ​​Arc card head; 30. Fixed frame; 31. Telescopic sleeve; 32. Pressing plate; 33. Turntable; 34. Test piece; 35. Mounting seat. DETAILED DESCRIPTION

[0038] The following will be combined with the embodiments to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0039] like Figure 1-9 As shown, a vehicle rear anti-collision beam strength testing device includes a lifting frame 5 and a fixed base 12. The lifting frame 5 is fixedly installed on the upper outer surface of the fixed base 12. A punch member 6 for impacting a test piece 34 is movably installed on the inner side of the lifting frame 5. A rotating body 19 is movably installed on the inner side of the punch member 6. Four groups of punch bodies 20 are fixedly installed on the side outer surface of the rotating body 19. A push plate 2 for mounting the test piece 34 is movably installed on the upper end of the fixed base 12. A docking card seat 3 is fixedly installed in the middle position of the upper outer surface of the push plate 2, and two groups of mounting members 4 for cooperating with the mounting seat 35 are slidably installed on the outer surface of the docking card seat 3. The mounting member 4 includes a slide 14 and a mounting plate 18. The mounting plate 18 is movably mounted on the upper end of the slide 14.

[0040] To solve the multi-angle impact test problem of the rear anti-collision beam of the car, such as Figure 2As shown, the mounting plate 18 and the slide 14 are movably connected via the rotating seat 17. A lifting screw 15 is movably installed on both sides of the rotating seat 17 between the mounting plate 18 and the slide 14, and a side rotating support plate 16 is movably installed on the upper end of the lifting screw 15. The user fixes the two mounting seats 35 of the test piece 34 on the two mounting members 4 of the docking card seat 3 respectively. First, the distance between the two sets of mounting members 4 can be adjusted by moving the slide 14 on the docking card seat 3, so that the mounting members 4 can be aligned according to the position of the mounting seats 35. It should be adjusted. At the same time, when the punch piece 6 performs an impact test on the surface of the test piece 34, the rotating seat 17 can be used to adjust the angle of the mounting plate 18 to complete the tilt adjustment of the test piece 34, so that the punch piece 6 can perform a tilt impact test on the test piece 34. Secondly, the height of the side rotating support plate 16 is adjusted by rotating the lifting screw 15, so that the side rotating support plate 16 supports the bottom of the mounting plate 18 respectively, and at the same time controls the use angle of the mounting plate 18 to avoid the impact force directly acting on the rotating seat 17 when performing the impact test.

[0041] To simulate different types of impact structures, e.g. Figure 3 As shown, the surfaces of the four groups of punch bodies 20 are respectively arc-shaped, conical, flat and spherical structures. The punch part 6 and the rotating body 19 are movably connected by a docking rotating rod 22, and a fixing pin 21 is installed between the punch part 6 and the rotating body 19. A water tank 1 is provided inside the fixed base 12, and a spray rack 11 used in conjunction with the water tank 1 is provided at the upper end of the fixed base 12. Several groups of support bars 13 are installed on the inner side of the fixed base 12 at the upper part of the water tank 1. By using the setting of the docking rotating rod 22, the rotating body 19 can be rotated and adjusted, thereby adjusting the position of the four groups of punch bodies 20 installed on the rotating body 19. The four groups of punch bodies 20 are respectively arc-shaped, conical, flat and spherical structures. When conducting an anti-collision beam impact test, impact objects of different shapes can be simulated to improve the comprehensiveness of the test. The fixed pin 21 can be used to fix the rotating body 19 after rotation.

[0042] like Figure 4 As shown, the punch part 6 and the lifting frame 5 are movably connected through the limiting slide 10. The punch part 6 is arranged at the lower end of the limiting slide 10. The upper end of the punch part 6 is fixedly installed with a docking clamp 23. The middle part of the upper end of the lifting frame 5 is provided with a cylinder body 8 used in conjunction with the punch part 6. The cylinder body 8 is used to propel the punch part 6 through the pneumatic head 24 through the pneumatic propulsion structure, so that the punch part 6 carries the punch body 20 and moves downward at a high speed, so that the punch body 20 can simulate a high-speed impact scene within a short distance and complete the high-speed impact test on the surface of the test piece 34.

[0043] A pneumatic punch 24 is movably installed in the middle of the lower end of the cylinder body 8, a lifting plate 7 is movably installed on the inner side of the lifting frame 5, and a movable clamping head is provided at the bottom of the lifting plate 7. A docking slot 25 for cooperating with the movable clamping head is provided at the upper end of the limiting slide 10. The movable clamping head of the lifting plate 7 can be used to fix the docking slot 25 of the limiting slide 10. After the punch part 6 completes an impact test, the limiting slide 10 can be pulled upward by the lifting plate 7, thereby completing the reset operation of the punch part 6.

[0044] The inner side of the lifting frame 5 is provided with a slide groove used to cooperate with the lifting plate 7 and the limiting slide plate 10. The upper end of the lifting plate 7 and the lifting frame 5 are connected by two lifting cables 9. One end of the lifting cable 9 is wound or released by a winding machine to control the use height of the lifting plate 7. The movable clamping head at the bottom of the lifting plate 7 is driven by an electric structure. The movable clamping head is driven by a motor and a screw rod, so that the movable clamping head can complete the docking and separation operations of the docking slot 25.

[0045] like Figure 5 As shown, a first plug 26 and a second plug 27 are movably installed on the inner side of the pneumatic plug 24. The first plug 26 is located on one side of the second plug 27, and the first plug 26 and the second plug 27 are elastically connected by a spring 28. The first plug 26 and the second plug 27 in the pneumatic plug 24 can be used to complete the docking and release operations of the docking clamp 23. When the pneumatic plug 24 is quickly ejected, the release operation of the docking clamp 23 is completed by using the contact between the first plug 26 and the second plug 27 and the circular notch in the middle of the lifting plate 7.

[0046] The first and second plugs 26, 27 are both L-shaped structures, and one end of the first and second plugs 26, 27 is provided with an arc-shaped clamping head 29. The inner side of the docking clamping head 23 is provided with an arc-shaped clamping groove for matching the first and second plugs 26, 27. When the lifting plate 7 and the limit slide 10 are docked and fixed, the docking clamping head 23 passes through the circular notch of the lifting plate 7, and the lifting plate 7 drives the docking clamping head 23 to move upward, so that the docking clamping head 23 is inserted into the inner side of the pneumatic plug 24, so that the arc-shaped clamping head 29 is stuck in the arc-shaped clamping groove. When the pneumatic plug 24 is ejected outward under the action of air pressure, the pneumatic plug 24 passes through the circular notch of the lifting plate 7, so that the first and second plugs 26, 27 move inward under the action of external force, thereby causing the two groups of arc-shaped clamping heads 29 to move toward each other, so that the arc-shaped clamping head 29 is separated from the arc-shaped clamping groove, completing the separation operation between the docking clamping head 23 and the pneumatic plug 24.

[0047] The punch part 6 is movably installed at the lower end of the limiting slide 10, and a fixing frame 30 is fixedly installed at the upper end of the limiting slide 10. A docking clamp 23 is fixedly installed at the middle of the upper end of the fixing frame 30. The fixing frame 30 is set at the upper end of the limiting slide 10, so that the docking clamp 23 is indirectly installed at the middle of the upper end of the fixing frame 30. By adjusting the position of the punch part 6, the impact test of the test piece 34 at different positions can be met.

[0048] A clamping plate 32 is provided at the upper end of the punch part 6, and a telescopic sleeve 31 is movably installed between the punch part 6 and the clamping plate 32. A turntable 33 is movably installed on the upper end of the clamping plate 32. The user rotates the turntable 33 so that the turntable 33 drives the telescopic sleeve 31 using a threaded structure to move up and down, and uses the telescopic sleeve 31 to adjust the use height of the clamping plate 32. After the punch part 6 moves to the corresponding position, the locking and fixation between the punch part 6 and the limiting slide 10 is completed.

[0049] During use, the anti-collision beam bending test device adopts a vertical structure design, which means that it can only perform fixed-angle impact tests when conducting anti-collision beam strength tests. In real-life scenarios, anti-collision beams will collide with objects at different angles. At the same time, the traditional vertical test structure has a short test distance, which means that the test object cannot be hit at the corresponding speed within a short distance, affecting its strength test results. Secondly, the traditional test device only has a single test structure. When conducting automobile rear anti-collision beam strength tests, it cannot simulate different types of impact test structures, reducing its flexibility in use.

[0050] To this end, by providing the mounting member 4 and the pressing plate 32, when the automobile rear anti-collision beam strength testing device is used, it is possible to complete the strength test operation of the automobile rear anti-collision beam at multiple angles and different points, making its test effect more similar to the real scene;

[0051] During operation, first, the distance between the two sets of mounting parts 4 can be adjusted by moving the slide 14 on the docking card seat 3, so that the mounting parts 4 can be adjusted accordingly according to the position of the mounting seats 35. The user fixes the two mounting seats 35 of the test piece 34 on the two mounting parts 4 of the docking card seat 3 respectively. At the same time, when the punch piece 6 performs an impact test on the surface of the test piece 34, the rotating seat 17 can be used to adjust the angle of the mounting plate 18 to complete the tilt adjustment of the test piece 34, so that the punch piece 6 can perform a tilt impact test on the test piece 34. Secondly, the height of the side rotating support plate 16 is adjusted by rotating the lifting screw rod 15, so that the side rotating support plate 16 supports the bottom of the mounting plate 18 respectively, and the side rotating support plate 16 can adjust the height of the side rotating support plate 16 according to the angle of the mounting plate 18. The surface is adjusted to rotate accordingly, and the bottom of the mounting plate 18 is supported by the side rotating support plate 16, while the use angle of the mounting plate 18 is controlled. When performing the impact test, the impact force is prevented from directly acting on the rotating seat 17. Secondly, a fixing bracket 30 is provided at the upper end of the limiting slide 10, so that the docking clamp 23 is indirectly mounted on the middle part of the upper end of the fixing bracket 30. The position of the punch part 6 can be adjusted by pushing it, so as to meet the impact test of the test piece 34 in different positions. The user rotates the turntable 33 so that the turntable 33 drives the telescopic sleeve 31 to move up and down using the threaded structure, and uses the telescopic sleeve 31 to adjust the use height of the pressing plate 32. After the punch part 6 moves to the corresponding position, the locking and fixation between the punch part 6 and the limiting slide 10 is completed.

[0052] By providing the docking clamp 23 and the pneumatic mandrel 24, when the automobile rear anti-collision beam strength test device is used, its vertical impact test effect is improved, so that it can be accelerated to a certain test speed within a short distance, so that it can better simulate the high-speed impact effect;

[0053] During use, the cylinder body 8 is used to propel the punch part 6 through the pneumatic ram 24 through the pneumatic propulsion structure, so that the punch part 6 carries the punch body 20 and moves downward at high speed, so that the punch body 20 can simulate a high-speed impact scene within a short distance, and complete the high-speed impact test on the surface of the test piece 34. The first ram 26 and the second ram 27 in the pneumatic ram 24 can complete the docking and release operations of the docking clamp 23. When the pneumatic ram 24 is quickly ejected, the contact between the first ram 26 and the second ram 27 and the circular notch in the middle of the lifting plate 7 is used to complete the release operation of the docking clamp 23. When the lifting plate 7 and the limiting slide 10 are docked and fixed, the docking clamp 23 is released. 23 passes through the circular notch of the lifting plate 7, and the lifting plate 7 drives the docking clamp 23 to move upward, so that the docking clamp 23 is inserted into the inner side of the pneumatic ram 24, so that the arc clamp 29 is clamped in the arc groove, completing the fixing operation of the punch part 6. When the pneumatic ram 24 is ejected outward under the action of air pressure, the pneumatic ram 24 passes through the circular notch of the lifting plate 7, so that the first ram 26 and the second ram 27 move inward under the action of external force, thereby causing the two groups of arc clamps 29 to move toward each other, so that the arc clamp 29 is separated from the arc groove, completing the separation operation between the docking clamp 23 and the pneumatic ram 24, so that the punch part 6 hits the rear anti-collision beam of the car at high speed;

[0054] By providing the rotating body 19 and the punch body 20, when the automobile rear anti-collision beam strength testing device is used, it has a rotation adjustment structure, which can simulate different impact structures and improve the automobile rear anti-collision beam strength testing effect;

[0055] During operation, the rotating body 19 can be rotated and adjusted by using the setting of the docking rotating rod 22, thereby adjusting the position of the four sets of punch bodies 20 installed on the rotating body 19. The four sets of punch bodies 20 are respectively in the shape of an arc, a cone, a plane and a spherical structure. When performing the impact test of the anti-collision beam, it can simulate impact objects of different shapes to improve the comprehensiveness of its test. The fixed pin 21 can fix the rotating body 19 after rotation;

[0056] Secondly, after the impact test, the surface temperature of the test piece 34 will increase, thereby affecting the structural strength of the test piece 34. The spray rack 11 is used to spray and cool the surface of the test piece 34, so that the temperature of the test piece 34 can be quickly restored. At the same time, the drainage groove on the surface of the push plate 2 can discharge the water into the interior of the water tank 1, which is convenient for its recycling.

[0057] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the technical solution of the present invention, make some changes or modifications to equivalent embodiments using the technical contents disclosed above. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A vehicle rear anti-collision beam strength testing device, characterized in that: The invention comprises a lifting frame (5) and a fixed base (12), wherein the lifting frame (5) is fixedly mounted on the upper outer surface of the fixed base (12), a punch member (6) for striking a test piece (34) is movably mounted on the inner side of the lifting frame (5), a rotating body (19) is movably mounted on the inner side of the punch member (6), four groups of punch bodies (20) are fixedly mounted on the side outer surface of the rotating body (19), a push plate (2) for mounting the test piece (34) is movably mounted on the upper end of the fixed base (12), a docking card seat (3) is fixedly mounted on the middle position of the upper outer surface of the push plate (2), and two groups of mounting members (4) for use with the mounting seat (35) are slidably mounted on the outer surface of the docking card seat (3), and the mounting member (4) comprises a slide seat (14) and a mounting plate (18), and the mounting plate (18) is movably mounted on the upper end of the slide seat (14).

2. The vehicle rear anti-collision beam strength testing device according to claim 1, characterized in that: The mounting plate (18) and the slide seat (14) are movably connected via a rotating seat (17); a lifting screw rod (15) is movably mounted on both sides of the rotating seat (17) between the mounting plate (18) and the slide seat (14); and a side rotating support plate (16) is movably mounted on the upper end of the lifting screw rod (15).

3. The vehicle rear anti-collision beam strength testing device according to claim 1, characterized in that: The surfaces of the four groups of punch bodies (20) are respectively arc-shaped, conical, flat and spherical structures. The punch member (6) and the rotating body (19) are movably connected through a docking rotating rod (22), and a fixed pin (21) is installed between the punch member (6) and the rotating body (19). A water tank (1) is provided inside the fixed base (12), and a spray rack (11) used in conjunction with the water tank (1) is provided at the upper end of the fixed base (12). A plurality of support bars (13) are installed on the inner side of the fixed base (12) located above the water tank (1).

4. The vehicle rear anti-collision beam strength testing device according to claim 1, characterized in that: The punch part (6) and the lifting frame (5) are movably connected via a limiting slide (10); the punch part (6) is arranged at the lower end of the limiting slide (10); a docking clamp (23) is fixedly installed at the upper end of the punch part (6); and a cylinder body (8) used in conjunction with the punch part (6) is provided at the middle part of the upper end of the lifting frame (5).

5. The vehicle rear anti-collision beam strength testing device according to claim 4, characterized in that: A pneumatic ram (24) is movably mounted on the middle portion of the lower end of the cylinder body (8), a lifting plate (7) is movably mounted on the inner side of the lifting frame (5), and a movable clamping head is provided at the bottom of the lifting plate (7), and a docking slot (25) for cooperating with the movable clamping head is provided at the upper end of the limiting slide plate (10).

6. The vehicle rear anti-collision beam strength testing device according to claim 5, characterized in that: The inner side of the lifting frame (5) is provided with a slide groove used in conjunction with the lifting plate (7) and the limiting slide plate (10), and the upper end of the lifting plate (7) and the lifting frame (5) are connected via two suspension cables (9).

7. The vehicle rear anti-collision beam strength testing device according to claim 6, characterized in that: A first plug (26) and a second plug (27) are movably mounted on the inner side of the pneumatic plug (24); the first plug (26) is located on one side of the second plug (27); and the first plug (26) and the second plug (27) are elastically connected via a spring (28).

8. The vehicle rear anti-collision beam strength testing device according to claim 7, characterized in that: The first plug (26) and the second plug (27) are both L-shaped structures. One end of the first plug (26) and the second plug (27) is provided with an arc-shaped clamping head (29), and the inner side of the docking clamping head (23) is provided with an arc-shaped clamping groove for matching with the first plug (26) and the second plug (27).

9. The vehicle rear anti-collision beam strength testing device according to claim 1, characterized in that: The punch part (6) is movably mounted on the lower end of the limiting slide (10), a fixing frame (30) is fixedly mounted on the upper end of the limiting slide (10), and a docking clamp (23) is fixedly mounted on the middle part of the upper end of the fixing frame (30).

10. The vehicle rear anti-collision beam strength testing device according to claim 9, characterized in that: A pressing plate (32) is provided at the upper end of the punch (6), and a telescopic sleeve (31) is movably installed between the punch (6) and the pressing plate (32). A rotating disk (33) is movably installed at the upper end of the pressing plate (32).

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