A test bench for strength detection of a new energy automobile anti-collision beam

Abstract

The application is suitable for the technical field of anti-collision beam detection, and provides a test bench for strength detection of new energy vehicle anti-collision beam, which comprises a test assembly, a positioning assembly slidingly arranged on the test assembly, and a vehicle anti-collision beam movably positioned on the positioning assembly; the test assembly comprises a test piece and a fitting piece slidingly fitted on the test piece, and the positioning assembly comprises a clamping piece slidingly fitted on the test piece and two sliding contacts slidingly fitted on the clamping piece. The device solves the technical problem that the test bench needs to use additional external clamping tools to position and fix the vehicle anti-collision beam before the strength test, which leads to a complicated process and brings inconvenience to the workers. The device can avoid the sliding of the vehicle anti-collision beam on the positioning assembly, simplify the test process, and bring convenience to the workers.

Description

Technical Field

[0001] This invention relates to the field of anti-collision beam testing technology, and more specifically, to a test bench for testing the strength of anti-collision beams in new energy vehicles. Background Technology

[0002] New energy vehicles refer to automobiles that use unconventional vehicle fuels as their power source and integrate advanced technologies in vehicle power control and drive, resulting in vehicles with advanced technical principles, new technologies, and new structures. Like traditional fuel vehicles, new energy vehicles are equipped with anti-collision beams, which absorb and buffer the impact during collisions. During the production of anti-collision beams, their strength needs to be tested.

[0003] Currently, most testing benches for testing the strength of new energy vehicle anti-collision beams have the following technical problems when conducting strength tests on vehicle anti-collision beams:

[0004] Existing test benches for testing the strength of new energy vehicle anti-collision beams often require additional external clamping tools to position and fix the anti-collision beams before strength testing, making the whole process too cumbersome and causing inconvenience to the staff. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the present invention aims to provide a test bench for strength testing of anti-collision beams for new energy vehicles. This bench utilizes the self-weight of the anti-collision beam to clamp and position its side, preventing it from sliding on the positioning components during strength testing and thus affecting the test results. Furthermore, it avoids the need for excessive external clamping tools during strength testing, simplifying the testing process and providing greater convenience for personnel.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a test bench for testing the strength of anti-collision beams of new energy vehicles, comprising a test assembly, wherein a positioning assembly and an anti-collision beam of a vehicle are slidably disposed on the test assembly; the test assembly includes a test piece and a fitting piece slidably fitted onto the test piece; the positioning assembly includes a clamping piece slidably fitted onto the test piece and two sliding contact pieces slidably fitted onto the clamping piece; the test piece includes an H-shaped horizontal plate, and two symmetrical U-shaped guide plates are fixed to the bottom of the H-shaped horizontal plate; the clamping piece includes two... A slide rail block is slidably fitted onto an H-shaped horizontal plate. Two symmetrical pins are fixed to the top of the slide rail block. An expanding arm is rotatably fitted onto each of the two pins. An L-shaped positioning plate is rotatably fitted onto each of the two expanding arms. A circular hole is opened through the bottom of each of the two L-shaped positioning plates to slide with the sliding contact. Guide channels are fixed to opposite sides of the L-shaped positioning plates. A cross block is slidably fitted inside the guide channels. A triangular plate is fixed to one side of the cross block to slide with the sliding contact. An L-shaped extension plate is fixed to the side of the triangular plate. A clamping plate is fixed to the side end face of the L-shaped extension plate.

[0007] The invention is further configured such that: two symmetrical limiting grooves are formed on the inner wall of the circular hole; the sliding contact includes a sliding rod that is slidably fitted inside the circular hole, the top of the sliding rod is dome-shaped, two symmetrical limiting rails are fixed on the periphery of the sliding rod, the two limiting rails are slidably fitted with the two limiting grooves respectively, a displacement base plate is fixed at the bottom of the sliding rod, displacement rods are fixed on both opposite sides of the displacement base plate, sliding balls that slidably fit with triangular plates are fixed at the ends of the two displacement rods, and a first spring that is sleeved on the sliding rod is fixed at the top of the displacement base plate, the end of the first spring being fixedly connected to the outer bottom of the L-shaped positioning plate.

[0008] The present invention is further configured such that: an L-shaped guide plate is fixed on one side of each of the two L-shaped positioning plates, a displacement groove is provided through the top of the L-shaped guide plate, a first guide rod is fixed on the inner wall of the displacement groove, an I-shaped slider is slidably fitted on the inner wall of the displacement groove and slidably fitted through the first guide rod, and a second spring is fixed between the I-shaped slider and the displacement groove and sleeved on the first guide rod.

[0009] The invention is further configured such that: a guide hole is provided through the top of the L-shaped guide plate; a plug rod that is slidably inserted into the guide hole and movably connected to the vehicle anti-collision beam is provided inside the guide hole; the bottom of the plug rod is dome-shaped; a bottom ring is fixed to the periphery of the plug rod; a third spring is fixed between the bottom ring and the L-shaped guide plate and sleeved on the plug rod; a trapezoidal plate is fixed to the bottom of the I-shaped slider and slides in contact with the bottom of the plug rod; triangular contact plates are fixed to the opposite sides of the trapezoidal plate; baffles are fixed to the sides of the two triangular contact plates; two symmetrical L-shaped abutment rods are fixed to one side of the displacement base plate; the ends of the two L-shaped abutment rods are dome-shaped; and the two L-shaped abutment rods slide in contact with the inclined surfaces of the two triangular contact plates respectively.

[0010] The invention is further configured such that: two symmetrical L-shaped support feet are fixed to the bottom of the H-shaped horizontal plate; a first telescopic cylinder is fixed to the inner side of one of the L-shaped support feet; a side plate is fixed to the telescopic end of the first telescopic cylinder; a first motor is fixed to the side of the side plate; a reciprocating lead screw is fixed to the output shaft of the first motor; a guide groove is provided through the side of the side plate; and a moving block that reciprocates with the reciprocating lead screw is slidably engaged inside the guide groove.

[0011] The invention is further configured such that: an L-shaped displacement plate is fixed to the side of the moving block, a guide cylinder is fixed to the top of the L-shaped displacement plate, and two symmetrical vertical rails are fixed inside the guide cylinder; the fitting component includes a vertical cylinder that slides inside the guide cylinder, and two symmetrical vertical grooves are opened on the circumferential side of the vertical cylinder, and the two vertical grooves slide with the two vertical rails respectively.

[0012] The invention is further configured such that: a fourth spring is fixed to the top of the vertical cylinder, the end of the fourth spring is fixedly connected to the top of the guide cylinder, a bonding plate that slides with the car anti-collision beam is fixed to the bottom of the vertical cylinder, an internally threaded cylinder is fixed to the side of the bonding plate, and a laser pointer is threadedly connected inside the internally threaded cylinder; a base plate is fixed to the inner side of the other L-shaped support foot, a U-shaped clamp is fixed to the top of the base plate, and a display screen is slidably inserted inside the U-shaped clamp.

[0013] The invention is further configured such that: a transverse guide rail is fixed to the inner side of another L-shaped support foot located below the base plate; a second motor is fixed to the side of the transverse guide rail; a threaded screw is fixed to the output shaft of the second motor; a displacement frame is slidably fitted inside the transverse guide rail and threadedly rotatably connected to the threaded screw; a second telescopic cylinder is fixed to the top of the displacement frame; and a pressure plate is fixed to the telescopic end of the second telescopic cylinder; a display controller electrically connected to the display screen is fixed to the side of the U-shaped clamp.

[0014] The invention is further configured such that: two symmetrical second guide rods are fixed to the inner wall of the H-shaped horizontal plate, and two fifth springs are respectively sleeved and fitted on the two second guide rods; each of the two slide rail blocks has a guide hole through which it is slidably fitted on the second guide rod, and the end of the fifth spring is fixedly connected to one side of the slide rail block.

[0015] The advantages of this invention are: 1. This invention utilizes the gravity of the car anti-collision beam itself to cause the clamping plates on one side of the two cross blocks to move synchronously toward the side of the car anti-collision beam, thereby clamping and positioning the side of the car anti-collision beam. This prevents the car anti-collision beam from sliding on the positioning components during subsequent strength tests, which would affect the test results. It also avoids the need to use too many external clamping tools for clamping and positioning during strength tests, simplifying the testing process and providing convenience for the staff.

[0016] 2. This invention utilizes the gravity of the vehicle's anti-collision beam itself to allow the connecting rod to pass through the guide hole and ultimately be inserted into the positioning hole of the anti-collision beam. This locks the two ends of the anti-collision beam in place, preventing it from sliding on the positioning assembly during later strength tests, which could affect the test results. Furthermore, it avoids the need for excessive external clamping tools during strength tests, simplifying the testing process and providing convenience for the personnel. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a test bench for strength testing of anti-collision beams of new energy vehicles according to the present invention.

[0018] Figure 2 This is a schematic diagram of the structure of the test component of the present invention.

[0019] Figure 3 This is a schematic diagram of the positioning component of the present invention.

[0020] Figure 4 This is a schematic diagram of the structure of the test piece of the present invention.

[0021] Figure 5 This is a schematic diagram of the test piece of the present invention from another angle.

[0022] Figure 6 This is a side view of the cross-sectional structure of the test piece of the present invention.

[0023] Figure 7 This is a schematic diagram of the structure of the bonding component of the present invention.

[0024] Figure 8 This is a schematic diagram of the structure of the clamping component of the present invention.

[0025] Figure 9 This is a top view of the clamping component of the present invention.

[0026] Figure 10 This is a front view of the clamping component of the present invention.

[0027] Figure 11 This is a schematic diagram of the structure of the sliding contact element of the present invention.

[0028] Figure 12 This is a schematic diagram of the structure of the automotive anti-collision beam of the present invention.

[0029] In the diagram: 1. Test component; 2. Positioning component; 3. Automobile anti-collision beam; 4. Test piece; 5. Fitting component; 6. Clamping component; 7. Sliding component; 401. H-shaped horizontal plate; 402. U-shaped guide plate; 403. L-shaped support foot; 404. First telescopic cylinder; 405. Side plate; 406. First motor; 407. Reciprocating lead screw; 408. Guide groove; 409. Moving block; 410. L-shaped displacement plate; 411. 411. Guide cylinder; 412. Vertical rail; 413. Base plate; 414. U-shaped clamp; 415. Display screen; 416. Horizontal guide rail; 417. Second motor; 418. Threaded screw; 419. Displacement frame; 420. Second telescopic cylinder; 421. Pressure plate; 422. Display controller; 423. Second guide rod; 424. Fifth spring; 501. Vertical cylinder; 502. Vertical groove; 503. Fourth spring Spring; 504, bonding plate; 505, internal threaded cylinder; 506, laser pointer; 601, slide block; 602, pin; 603, retractable arm; 604, L-shaped positioning plate; 605, circular hole; 606, guide channel; 607, cross block; 608, triangular plate; 609, L-shaped extension plate; 610, clamping plate; 611, limiting groove; 612, L-shaped guide plate; 613, displacement groove; 614, first guide. 615. Rod; 616. I-shaped slider; 617. Second spring; 618. Guide hole; 619. Insert rod; 620. Bottom ring; 621. Third spring; 622. Trapezoidal plate; 623. Baffle; 624. Guide hole; 701. Sliding rod; 702. Limiting rail; 703. Displacement base plate; 704. Displacement rod; 705. Sliding ball; 706. First spring; 707. L-shaped abutment rod. Detailed Implementation

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0032] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the directions shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0033] Example 1, please refer to Figure 1-12 The present invention provides the following technical solution: a test bench for testing the strength of anti-collision beams of new energy vehicles, specifically including a test component 1, a positioning component 2 and an anti-collision beam 3 movably positioned on the positioning component 2; the test component 1 includes a test piece 4 and a fitting component 5 slidably fitted on the test piece 4; the positioning component 2 includes a clamping component 6 slidably fitted on the test piece 4 and two sliding contact components 7 slidably fitted on the clamping component 6; the test piece 4 includes an H-shaped horizontal plate 401, and two symmetrical U-shaped guide plates 402 are fixed at the bottom of the H-shaped horizontal plate 401; the clamping component 6 includes two slide rail blocks 6 slidably fitted on the H-shaped horizontal plate 401. 01. Two symmetrical pins 602 are fixed to the top of the slide block 601. Each pin 602 is rotatably fitted with an expanding arm 603. Each expanding arm 603 is rotatably fitted with an L-shaped positioning plate 604. The bottom of each L-shaped positioning plate 604 is provided with a circular hole 605 that slides with the sliding contact 7. Each L-shaped positioning plate 604 has a guide channel 606 fixed on opposite sides. A cross block 607 slides inside the guide channel 606. A triangular plate 608 that slides with the sliding contact 7 is fixed on one side of the cross block 607. An L-shaped extension plate 609 is fixed on the side of the triangular plate 608. A clamping plate 610 is fixed on the side end face of the L-shaped extension plate 609.

[0034] Furthermore, the inner wall of the circular hole 605 is provided with two symmetrical limiting grooves 611; the sliding contact 7 includes a sliding rod 701 that is slidably fitted inside the circular hole 605. The top of the sliding rod 701 is dome-shaped. Two symmetrical limiting rails 702 are fixed on the periphery of the sliding rod 701. The two limiting rails 702 are slidably fitted with the two limiting grooves 611 respectively. A displacement base plate 703 is fixed at the bottom of the sliding rod 701. Displacement rods 704 are fixed on both opposite sides of the displacement base plate 703. Sliding balls 705 that are slidably fitted with triangular plates 608 are fixed at the ends of the two displacement rods 704. A first spring 706 that is sleeved and fitted on the sliding rod 701 is fixed at the top of the displacement base plate 703. The end of the first spring 706 is fixedly connected to the outer bottom of the L-shaped positioning plate 604.

[0035] The specific application of this embodiment is as follows: When the car anti-collision beam 3 is lifted to the top of the positioning component 2 by an external lifting device, the car anti-collision beam 3 is lowered by the external lifting device. During the lowering operation, the bottom of the car anti-collision beam 3 will simultaneously exert a downward sliding force on the two sliding rods 701 that are slidably fitted on the two L-shaped positioning plates 604. This causes the first spring 706, which is fixed between the displacement base plate 703 and the L-shaped positioning plate 604, to be slowly stretched. When the two sliding rods 701 move downward synchronously on the two L-shaped positioning plates 604, the displacement base plates 703, which are respectively fixed to the bottom of the two sliding rods 701, move downward synchronously and slowly, thereby driving the displacement base plates 703 relative to the displacement rods 704 fixed on the two sides and the displacement rods... The sliding ball 705 fixed at the end of 704 slides synchronously on the inclined surface of the two triangular plates 608, thereby driving the two cross blocks 607 to slide relative to each other inside the two guide channels 606. This causes the clamping plate 610 set on the opposite side of the two cross blocks 607 to move synchronously towards the side of the car anti-collision beam 3. In this way, the side of the car anti-collision beam 3 is clamped and positioned by the weight of the car anti-collision beam 3 itself, so as to avoid the car anti-collision beam 3 from sliding on the positioning component 2 during the strength test, which would affect the test results. At the same time, it can also avoid using too many external clamping tools to clamp and position it during the strength test, simplifying the test process and bringing certain convenience to the staff.

[0036] Example 2, please refer to Figure 1-12 This second embodiment is an improvement on the first embodiment as follows: Specifically, an L-shaped guide plate 612 is fixed on one side of each of the two L-shaped positioning plates 604. A displacement groove 613 is provided through the top of the L-shaped guide plate 612. A first guide rod 614 is fixed to the inner wall of the displacement groove 613. An I-shaped slider 615 is slidably fitted to the inner wall of the displacement groove 613 and is slidably fitted through the first guide rod 614. A second spring 616 is fixed between the I-shaped slider 615 and the displacement groove 613 and is sleeved on the first guide rod 614. A guide hole 617 is provided through the top of the L-shaped guide plate 612. An insertion rod 618 is slidably fitted inside the guide hole 617 and is movably inserted into the vehicle anti-collision beam 3. The bottom of the plug rod 618 is dome-shaped, and a bottom ring 619 is fixed to the circumference of the plug rod 618. A third spring 620, which is sleeved and fitted on the plug rod 618, is fixed between the bottom ring 619 and the L-shaped guide plate 612. The bottom of the I-shaped slider 615 is fixed with a trapezoidal plate 621 that slides in contact with the bottom of the plug rod 618. Triangular contact plates 622 are fixed on both opposite sides of the trapezoidal plate 621, and baffles 623 are fixed on the sides of both triangular contact plates 622. Two symmetrical L-shaped abutment rods 707 are fixed on one side of the displacement base plate 703. The ends of the two L-shaped abutment rods 707 are dome-shaped, and the two L-shaped abutment rods 707 slide in contact with the inclined surfaces of the two triangular contact plates 622 respectively.

[0037] The specific application of this embodiment two is as follows: During the clamping and positioning process of the car anti-collision beam 3, the gravity of the car anti-collision beam 3 generates a downward sliding force on the two sliding rods 701 that are respectively slidably fitted on the two L-shaped positioning plates 604. This causes the first spring 706, which is fixedly connected between the displacement base plate 703 and the L-shaped positioning plate 604, to be stretched, thereby driving the displacement base plate 703 to move downward below the L-shaped positioning plate 604. When the L-shaped positioning plate 604 moves downward, the two L-shaped abutment rods 707 slide into contact with the inclined surfaces of the two triangular contact plates 622, thereby driving the trapezoidal plate 621 fixed between the two triangular contact plates 622 and the I-shaped slider 615 fixed at the top of the trapezoidal plate 621 to move closer to the L-shaped positioning plate 604 inside the displacement groove 613. The side moves horizontally, thus synchronously compressing the second spring 616 fixed between the I-shaped slider 615 and the displacement groove 613. This causes the I-shaped slider 615 to slowly approach the side of the L-shaped positioning plate 604. When the I-shaped slider 615 slowly approaches the side of the L-shaped positioning plate 604, it slides between the inclined surface of the trapezoidal plate 621 and the bottom of the insertion rod 618. Combined with the elastic compression force of the third spring 620 fixed between the bottom ring 619 and the L-shaped guide plate 612, the insertion rod 618 passes through the guide hole 617 and is finally inserted into the positioning hole of the car anti-collision beam 3 (the positioning hole of the car anti-collision beam 3 is used to fix the car anti-collision beam 3 to the front end of the new energy vehicle frame with bolts; its specific structure can be found in [reference needed]). Figure 12 This design utilizes the self-weight of the vehicle anti-collision beam 3 to lock both ends of the beam in place, preventing it from sliding on the positioning component 2 during strength testing and thus affecting the test results. It also avoids the need for excessive external clamping tools during strength testing, simplifying the testing process and providing convenience for the staff.

[0038] Example 3, please refer to Figure 1-12This third embodiment is an improvement on the first embodiment as follows: Specifically, two symmetrical L-shaped support legs 403 are fixed to the bottom of the H-shaped horizontal plate 401; a first telescopic cylinder 404 is fixed to the inner side of one L-shaped support leg 403; a side plate 405 is fixed to the telescopic end of the first telescopic cylinder 404; a first motor 406 is fixed to the side of the side plate 405; a reciprocating lead screw 407 is fixed to the output shaft of the first motor 406; a guide groove 408 is provided through the side of the side plate 405; a moving block 409 is slidably engaged with the reciprocating lead screw 407 inside the guide groove 408; an L-shaped support leg 407 is fixed to the side of the moving block 409. The L-shaped displacement plate 410 has a guide cylinder 411 fixed to its top, and two symmetrical vertical rails 412 fixed inside the guide cylinder 411. The fitting component 5 includes a vertical cylinder 501 that slides inside the guide cylinder 411. Two symmetrical vertical grooves 502 are opened on the circumferential side of the vertical cylinder 501, and the two vertical grooves 502 slide with the two vertical rails 412 respectively. A fourth spring 503 is fixed to the top of the vertical cylinder 501, and the end of the fourth spring 503 is fixedly connected to the top of the guide cylinder 411. A fitting plate 504 that slides with the car anti-collision beam 3 is fixed to the bottom of the vertical cylinder 501. The side of the fitting plate 504 is fixed. There is an internally threaded cylinder 505, with a laser pointer 506 connected internally by threads; another L-shaped support leg 403 has a base plate 413 fixed to its inner side, and a U-shaped clamp 414 fixed to the top of the base plate 413, with a display screen 415 slidably inserted inside the U-shaped clamp 414; another L-shaped support leg 403 has a transverse guide rail 416 fixed to its inner side below the base plate 413, and a second motor 417 fixed to the side of the transverse guide rail 416, with a threaded screw 418 fixed to the output shaft of the second motor 417, and the transverse guide rail 416 has a sliding fit with the threaded screw 418 for rotational displacement. The frame 419 has a second telescopic cylinder 420 fixed at its top, and a pressure plate 421 fixed at the telescopic end of the second telescopic cylinder 420. A display controller 422, which is electrically connected to the display screen 415, is fixed on the side of the U-shaped clamp 414. Two symmetrical second guide rods 423 are fixed on the inner wall of the H-shaped horizontal plate 401, and two fifth springs 424 are fixed on the inner wall of the H-shaped horizontal plate 401, which are respectively sleeved and fitted on the two second guide rods 423. Guide holes 624 that slide and fit on the second guide rods 423 are opened through one side of each of the two slide rail blocks 601. The end of the fifth spring 424 is fixedly connected to one side of the slide rail block 601.

[0039] The specific application of this embodiment three is as follows: During the strength test of the car anti-collision beam 3, the test bench first completes the positioning and fixing before the test through its own gravity. After the positioning and fixing operation is completed, the first telescopic cylinder 404 is started, which drives the side plate 405 to gradually approach the top of the car anti-collision beam 3 after the positioning and fixing is completed, until the bonding plate 504 fixed at the bottom of the vertical cylinder 501 moves to the upper surface of the car anti-collision beam 3 (after the bonding plate 504 moves to the upper surface of the car anti-collision beam 3, the fourth spring 503 fixedly connected between the vertical cylinder 501 and the guide cylinder 411 is in a slightly compressed state, and the bottom of the bonding plate 504 and the upper surface of the car anti-collision beam 3 are in a mutually bonded state). The first telescopic cylinder 404 is then closed. The telescopic cylinder 404 is activated, and then the first motor 406 drives the reciprocating screw 407 to rotate. This causes the moving block 409 to slowly move from one side of the guide groove 408 to the other side. As the moving block 409 moves, the bonding plate 504, which is slidably attached to the upper surface of the car anti-collision beam 3, slides on the upper surface of the car anti-collision beam 3. During the sliding movement of the bonding plate 504 on the upper surface of the car anti-collision beam 3, the laser pointer 506 is activated simultaneously. This is achieved by observing the sliding movement of the bonding plate 504 on the upper surface of the car anti-collision beam 3. The laser pointer 506 synchronously displays a continuous line segment on the display screen 415. (The laser pointer 506 displays a line segment on the display screen 415 mainly utilizes the principle of rectilinear propagation of light. When the beam emitted by the laser pointer 506 illuminates the display screen 415, the beam propagates in a straight line and forms a light spot or dot on the screen. By moving the position of the laser pointer 506, a continuous line segment is formed on the display screen 415. Before displaying, it must be ensured that the surface of the display screen 415 has no anti-reflective coating or specular reflective structure (such as an OLED screen), otherwise the light spot may be scattered or absorbed, affecting the subsequent test process.) The line segment is then displayed on the display screen 415. This is done when the bonding plate 504 is removed from one side of the car anti-collision beam 3. After moving upwards to the other side above the car crash beam 3, the first motor 406 and laser pointer 506 are turned off. This represents the shape of the upper surface of the car crash beam 3 before testing as line segments, forming initial data for data comparison. Next, the second motor 417 is started, driving the displacement frame 419 to move inside the transverse guide rail 416 until the displacement frame 419 moves directly above the positioned and fixed car crash beam 3. Then, the second motor 417 is turned off, and the second telescopic cylinder 420 is started simultaneously. This causes the pressure plate 421 fixed at the telescopic end of the second telescopic cylinder 420 to move downwards synchronously, gradually approaching the upper surface of the car crash beam 3 until the pressure plate 421 contacts the upper surface of the car crash beam 3.Continuing the downward movement of the pressure plate 421, a strength test is conducted on the positioned and fixed automotive anti-collision beam 3. After the pressure plate 421 completes the strength test of the automotive anti-collision beam 3 under a certain downward pressing force of the second telescopic cylinder 420, the second telescopic cylinder 420 is started in reverse until the pressure plate 421 moves upward a certain distance. Then, the second telescopic cylinder 420 is closed, and subsequently, the second motor 417 is started in reverse (the forward and reverse rotation of the second motor 417 is existing technology and will not be elaborated on here), driving the positioning... The displacement frame 419 moves in the reverse direction inside the transverse guide rail 416 until it moves away from directly above the positioned and fixed car anti-collision beam 3, creating a certain gap between it and the end of the positioned and fixed car anti-collision beam 3. Then, the second motor 417 is turned off, and the first motor 406 is restarted, driving the reciprocating screw 407 to rotate. This causes the moving block 409 to move slowly from one side of the guide groove 408 to the other side within the guide groove 408. As the guide block 409 slowly moves from one side of the guide groove 408 to the other side of the groove 408, the bonding plate 504, which is slidably attached to the upper surface of the car anti-collision beam 3, will slide in the opposite direction on the upper surface of the car anti-collision beam 3 as the moving block 409 moves. When the bonding plate 504 slides in the opposite direction on the upper surface of the car anti-collision beam 3, the laser pointer 506 is activated simultaneously. This allows the laser pointer 506 to synchronously illuminate the display screen 415 as the bonding plate 504 slides on the upper surface of the car anti-collision beam 3. A continuous line segment is displayed again. By comparing the two line segments, the deformation and damage of the car crash beam 3 under certain pressure can be observed. Finally, the load-bearing capacity of the car crash beam 3 is determined through a static loading test, thus completing the strength test of the car crash beam 3. (In the above test process, the back-and-forth movement of the bonding plate 504, which slides against the upper surface of the car crash beam 3, enables multiple scans by the laser pointer 506 to generate multiple comparison line segments, increasing the accuracy of the test data).

[0040] During the strength test of the fixed and positioned car crash beam 3, as the pressure plate 421 moves downward, it exerts a downward force on the fixed and positioned car crash beam 3, thereby changing the overall length of the car crash beam 3. During this change in length (to prevent damage to the ends of the fixed and positioned car crash beam 3 and the positioning assembly 2 during the test), the ends of the car crash beam 3 are simultaneously subjected to a force that moves away from each other. When the ends of the car crash beam 3 are subjected to this force, the two L-shaped positioning plates 604, which are slidably fitted between the two U-shaped guide plates 402, will move away from each other synchronously. When the two L-shaped positioning plates 604 move away from each other between the two U-shaped guide plates 402, the multiple retracting arms 603, which are rotatably engaged between the two sets of pins 602 and the two opposing L-shaped positioning plates 604, will retract as the two L-shaped positioning plates 604 move away from each other. This will synchronously compress the two fifth springs 424 fixedly connected between the H-shaped horizontal plate 401 and the slide block 601, causing the two slide blocks 601 to move closer to each other on the two second guide rods 423 and the H-shaped horizontal plate 401, thereby preventing the car anti-collision beam 3 from deforming under pressure, avoiding damage to the positioning component 2, and preventing the anti-collision beam 3 from affecting the subsequent test process.

[0041] Obviously, the embodiments described above are merely some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

[0042] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0043] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0044] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0045] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A test bench for strength detection of a new energy automobile anti-collision beam, comprising a test assembly (1), characterized in that: The test component (1) is provided with a positioning component (2) and a car anti-collision beam (3) movably positioned on the positioning component (2); The test component (1) comprises a test piece (4) and a fitting piece (5) movably fitted on the test piece (4), and the positioning component (2) comprises a clamping piece (6) movably fitted on the test piece (4) and two sliding contact pieces (7) movably fitted on the clamping piece (6); The test piece (4) comprises an H-shaped horizontal plate (401), and the bottom of the H-shaped horizontal plate (401) is fixed with two symmetrical U-shaped guide plates (402); The clamping piece (6) comprises two sliding rail blocks (601) movably fitted on the H-shaped horizontal plate (401), and the top of each sliding rail block (601) is fixed with two symmetrical pin shafts (602), each of which is rotatably connected with a retractable arm (603), each retractable arm (603) is rotatably connected with an L-shaped positioning plate (604), and the inner bottom of each L-shaped positioning plate (604) is penetrated to form a circular hole (605) movably fitted with the sliding contact piece (7), the opposite side faces of each L-shaped positioning plate (604) are fixed with a guide groove (606), the guide groove (606) is movably fitted with a cross block (607), one side of the cross block (607) is fixed with a triangular plate (608) movably fitted with the sliding contact piece (7), the side face of the triangular plate (608) is fixed with an L-shaped extension plate (609), the side end face of the L-shaped extension plate (609) is fixed with a clamping plate (610), and the inner wall of the circular hole (605) is provided with two symmetrical limiting grooves (611); The sliding contact piece (7) comprises a sliding rod (701) movably fitted in the circular hole (605), the top of the sliding rod (701) is provided in a dome shape, the side face of the sliding rod (701) is fixed with two symmetrical limiting rails (702), each of the limiting rails (702) is movably fitted with the limiting groove (611), and the bottom of the sliding rod (701) is fixed with a displacement bottom plate (703); One side of each L-shaped positioning plate (604) is fixed with an L-shaped guide plate (612), the top of the L-shaped guide plate (612) is penetrated to form a displacement groove (613), the inner wall of the displacement groove (613) is fixed with a first guide rod (614), the displacement groove (613) is movably fitted with a I-shaped sliding block (615) movably fitted with the first guide rod (614), the top of the L-shaped guide plate (612) is penetrated to form a guide hole (617), the inner part of the guide hole (617) is movably fitted with a plug-in rod (618) movably connected with the car anti-collision beam (3), the bottom of the plug-in rod (618) is provided in a dome shape, the side face of the plug-in rod (618) is fixed with a bottom ring (619), and the third spring (620) movably fitted on the plug-in rod (618) is fixed between the bottom ring (619) and the L-shaped guide plate (612). The bottom of the I-shaped sliding block (615) is fixed with a trapezoidal plate (621) in sliding contact with the bottom of the plug-in rod (618), the opposite two sides of the trapezoidal plate (621) are fixed with triangular contact plates (622), and the sides of the two triangular contact plates (622) are fixed with baffle plates (623); The side of the displacement bottom plate (703) is fixed with two symmetrical L-shaped resistance rods (707), the end of the two L-shaped resistance rods (707) is provided in a dome shape, and the two L-shaped resistance rods (707) are respectively in sliding contact with the inclined surfaces of the two triangular contact plates (622).

2. The test bench for strength detection of a new energy vehicle anti-collision beam according to claim 1, characterized in that: The inner wall of the circular hole (605) is provided with two symmetrical limiting grooves (611); The opposite two sides of the displacement bottom plate (703) are fixed with displacement rods (704), the ends of the two displacement rods (704) are fixed with sliding balls (705) in sliding cooperation with the triangular plates (608), the top of the displacement bottom plate (703) is fixed with a first spring (706) sleeved and cooperated on the sliding rod (701), and the end of the first spring (706) is fixedly connected with the outer bottom of the L-shaped positioning plate (604).

3. The test bench for strength detection of a new energy vehicle anti-collision beam according to claim 2, characterized in that: The I-shaped sliding block (615) and the displacement groove (613) are fixed with a second spring (616) sleeved and cooperated on the first guide rod (614).

4. The test bench for strength detection of a new energy vehicle anti-collision beam according to claim 3, characterized in that: The bottom of the H-shaped cross plate (401) is fixed with two symmetrical L-shaped supporting legs (403); One inner side of the L-shaped supporting leg (403) is fixed with a first telescopic air cylinder (404), the telescopic end of the first telescopic air cylinder (404) is fixed with a side position plate (405), the side of the side position plate (405) is fixed with a first motor (406), the output shaft of the first motor (406) is fixed with a reciprocating screw rod (407), the side of the side position plate (405) is provided with a guide groove (408) penetratingly formed, and the guide groove (408) is internally and slidingly cooperated with a moving block (409) reciprocally slidingly cooperated with the reciprocating screw rod (407).

5. The test bench for strength detection of a new energy vehicle anti-collision beam according to claim 4, characterized in that: The side of the moving block (409) is fixed with an L-shaped displacement plate (410), the inner top of the L-shaped displacement plate (410) is fixed with a guide cylinder (411), and the guide cylinder (411) is internally fixed with two symmetrical vertical rails (412); The fitting part (5) comprises a vertical cylinder (501) slidingly cooperated in the guide cylinder (411), the circumferential side of the vertical cylinder (501) is provided with two symmetrical vertical grooves (502), and the two vertical grooves (502) are respectively slidingly cooperated with the two vertical rails (412).

6. The test bench for strength detection of a new energy vehicle anti-collision beam according to claim 5, characterized in that: The top of the vertical cylinder (501) is fixed with a fourth spring (503), the end of the fourth spring (503) is fixedly connected with the inner top of the guide cylinder (411), the bottom of the vertical cylinder (501) is fixed with a fitting plate (504) slidingly cooperated with the automobile anti-collision beam (3), the side of the fitting plate (504) is fixed with an internally threaded cylinder (505), and the internally threaded cylinder (505) is internally and threadedly connected with a laser pen (506). Another L-shaped supporting leg (403) is internally fixed with a base plate (413), the top of the base plate (413) is fixed with a U-shaped clamping plate (414), the inside of the U-shaped clamping plate (414) is slidably inserted with a display light screen (415).

7. The test bench for strength detection of a new energy vehicle anti-collision beam according to claim 6, characterized in that: Another L-shaped supporting leg (403) is internally fixed with a transverse guide rail (416) below the base plate (413), the side of the transverse guide rail (416) is fixed with a second motor (417), the output shaft of the second motor (417) is fixed with a threaded lead screw (418), the inside of the transverse guide rail (416) is slidably connected with a displacement frame (419) which is threadedly connected with the threaded lead screw (418), the inside of the displacement frame (419) is fixed with a second telescopic cylinder (420), the telescopic end of the second telescopic cylinder (420) is fixed with a pressing plate (421). The side of the U-shaped clamping plate (414) is fixed with a display controller (422) which is electrically connected with the display light screen (415).

8. The test bench for strength detection of a new energy vehicle anti-collision beam according to claim 7, characterized in that: The inner wall of the H-shaped transverse plate (401) is fixed with two symmetrical second guide rods (423), the inner wall of the H-shaped transverse plate (401) is fixed with two fifth springs (424) which are respectively sleeved and matched on the two second guide rods (423). The side of the two slide rail blocks (601) is respectively and throughly provided with a guide circular hole (624) which is slidably matched on the second guide rod (423), the end of the fifth spring (424) is fixedly connected with the side of the slide rail block (601).

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