Anti-bending detection mechanism for automobile anti-collision beam

Abstract

The present application relates to a kind of automobile anti-collision beam anti-bending detection mechanism, it is related to the technical field of anti-collision beam detection, it includes portal frame and the positioning base plate of being fixed in the portal frame between setting, positioning base plate is placed with the anti-collision beam needing to carry out detection, positioning base plate is opened with the positioning groove for the anti-collision beam placement, portal frame and positioning base plate are provided with the fixed detection device of anti-collision beam and is clamped and fixed to detect the anti-bending performance;The present application has can be fixed clamping to the anti-collision beam needing to be detected, subsequently the anti-collision beam after being clamped and fixed carries out multi-position, multiple force adjustment anti-bending detection, detects whether the quality standard of anti-collision beam reaches, meets the effect of factory requirement.

Description

Technical Field

[0001] This application relates to the technical field of anti-collision beam testing, and in particular to a mechanism for testing the bending resistance of automotive anti-collision beams. Background Technology

[0002] A crash beam is a device used to absorb collision energy when a vehicle is involved in a collision. It consists of a main beam, energy-absorbing boxes, and a mounting plate connected to the vehicle. Both the main beam and the energy-absorbing boxes effectively absorb collision energy during low-speed collisions, minimizing damage to the vehicle's longitudinal beams and thus protecting the vehicle. The crash beam is connected at both ends to low-speed energy-absorbing boxes with very low yield strength, which are then bolted to the vehicle's longitudinal beams. These low-speed energy-absorbing boxes effectively absorb collision energy during low-speed collisions, minimizing damage to the vehicle's longitudinal beams and the plastic bumper, thus reducing repair costs. Therefore, the crash beam's performance must be tested before it is installed on the vehicle body.

[0003] For example, in the existing Chinese patent with publication number CN217738662U, a high-efficiency detection device for automobile anti-collision beams is disclosed, including a housing. The same bidirectional threaded rod is rotatably installed on the inner walls of the left and right sides of the housing. Two movable plates are threaded on the outer side of the bidirectional threaded rod. A U-shaped plate is fixedly installed on the side of the two movable plates that are far apart from each other, and a clamping plate is fixedly installed on the side of the two U-shaped plates that are close to each other. Using the aforementioned existing technology, during use, pulling the rectangular frame causes the insert plate to move downwards, disengaging it from the turntable and releasing the turntable's fixation. Then, rotating the turntable drives the worm gear, which in turn drives the worm wheel, causing the bidirectional threaded rod to rotate. This causes the two moving plates to move closer together, and with the U-shaped plate connecting them, the two clamping plates move closer together, achieving positioning and clamping of the anti-collision beam. After clamping, releasing the rectangular frame allows the spring's return force to move the insert plate upwards, allowing it to engage in the corresponding slot, restricting the turntable's rotation and fixing it, thus improving the clamping stability of the clamping plates. Activating the electric push rod causes the casters to move downwards, contacting the ground and disengaging the support column from the ground, allowing the entire device to move flexibly.

[0004] However, the aforementioned existing technologies have the following technical defects:

[0005] The aforementioned existing technology can only position and clamp the crash beam, but cannot perform any kind of inspection on the crash beam, thus failing to achieve the fundamental inspection purpose. To inspect the crash beam, it is first necessary to position and clamp the crash beam using the aforementioned existing technology, and then manually push the entire device to the inspection agency for inspection. This cumbersome operation greatly reduces inspection efficiency and increases labor costs.

[0006] Based on this, there is still room for improvement in order to overcome the aforementioned technical shortcomings, even with the existing high-efficiency detection device for automotive anti-collision beams. Summary of the Invention

[0007] In order to fix and clamp the anti-collision beam to be tested, and then perform bending resistance tests on the clamped and fixed anti-collision beam in multiple positions and with various force adjustments to test whether the anti-collision beam meets the quality standards and factory requirements, this application provides an anti-collision beam bending resistance testing mechanism for automobiles.

[0008] This application provides a bending resistance testing mechanism for automotive anti-collision beams, which adopts the following technical solution:

[0009] A car anti-collision beam bending resistance testing mechanism includes a gantry frame and a positioning base plate clamped and fixed between the gantry frame. The anti-collision beam to be tested is placed on the positioning base plate. The positioning base plate has a positioning groove for placing the anti-collision beam. The gantry frame and the positioning base plate are provided with a regular inspection device for clamping and fixing the anti-collision beam to test its bending resistance performance.

[0010] The scheduled inspection device includes a clamping plate slidably disposed in a positioning groove. An arc-shaped groove is provided in the positioning groove for the clamping plate to slide. A connecting round block is fixedly installed on the side of the clamping plate away from the anti-collision beam. A threaded abutment is rotatably disposed on the positioning base plate. A threaded rotating hole is threaded on the positioning base plate to adapt to the threaded abutment and communicate with the arc-shaped groove for the threaded abutment to be rotatably installed. The connecting round block and the threaded abutment are rotatably connected by a convex rotating rod. A testing mechanism for testing the anti-bending resistance of the anti-collision beam is provided between the gantry frames. An adjustment mechanism for adjusting the bending resistance testing force of the anti-collision beam is installed on the outside of the gantry frames.

[0011] Preferably, the testing mechanism includes a rectangular slider, a connecting rod, a drive gear, a drive rack, a long rod, a fastening assembly, and an impact assembly. The rectangular slider is symmetrically slidably disposed in the inner cavity of the gantry via a sliding bar. One end of the connecting rod is rotatably disposed on the rectangular slider, and the other end extends through the gantry to the middle position of the gantry. The gantry has an elongated sliding opening for the connecting rod to pass through. The drive gear is fixedly sleeved on the connecting rod located within the elongated sliding opening. The drive rack is fixedly disposed at the upper position of the elongated sliding opening. The long rod is disposed between two connecting rods, and both ends are fixedly connected to the protruding ends of the two connecting rods respectively. Several sets of fastening assemblies are equidistantly disposed along the length of the long rod. Several sets of impact assemblies are disposed at the top position of the inner side of the gantry.

[0012] Preferably, the fastening assembly includes a U-shaped locking block, a limiting protrusion, a pressing spring, a pressing rod, and a convex connecting block. A plurality of U-shaped locking blocks are sequentially and slidably mounted on the elongated rod along its length. The elongated rod has equidistant locking grooves for the U-shaped locking blocks to engage and slide. Two limiting protrusions are respectively positioned and slidably mounted on both sides of the locking grooves. The elongated rod has a convex sliding groove communicating with the locking grooves for the limiting protrusions to be positioned and slidably mounted. The U-shaped locking blocks have symmetrically arranged fixing slots adapted to the limiting protrusions. A plurality of pressing springs are disposed within the convex sliding grooves, one end fixedly connected to the inner wall of the convex sliding groove, and the other end fixedly connected to the limiting protrusion. One end of each of the two pressing rods is rotatably mounted on the two limiting protrusions, and the other ends are hinged together. The convex connecting block is fixedly installed on the side of the U-shaped locking block away from the fixing slot.

[0013] Preferably, the impact assembly includes a rectangular solid block, a sliding internal toothed rod, a toothed column, a hanging toothed block, a rotating wheel, an impact detection block, and an actuator. A plurality of the rectangular solid blocks are fixedly installed at equal intervals on the inner top wall of the gantry frame. The sliding internal toothed rod is slidably disposed on the rectangular solid block, and one end facing the inner top wall of the gantry frame penetrates the gantry frame and extends into the inner cavity of the gantry frame. The rectangular solid block has a through rectangular hole for the sliding internal toothed rod to slide through. The gantry frame has an extension port for the sliding internal toothed rod to penetrate and extend into.

[0014] The toothed column is rotatably disposed within the through rectangular hole and meshes with the sliding inner toothed rod. The two hanging tooth blocks are respectively limited and slidably disposed on both sides of the rectangular fixed block and located above and below the toothed column, and both mesh with the toothed column. The rectangular fixed block has hanging tooth sliding openings on both sides that communicate with the through rectangular hole for the hanging tooth blocks to be limited and slid. Several rotating wheels are rotatably mounted on the hanging tooth blocks located outside the rectangular fixed block. The hanging tooth blocks have rotating grooves for mounting the rotating wheels. The impact detection block is hung on the hanging tooth blocks outside the rectangular fixed block.

[0015] The impact detection block is provided with an insertion port for inserting a rectangular fixed block, an elongated port communicating with the insertion port for inserting a sliding internal toothed rod, and a connecting port communicating with the elongated port for inserting a convex connecting block. The insertion port is provided with a hanging groove for the toothed block to extend out. The actuator is located on the sliding internal toothed rod and the impact detection block.

[0016] Preferably, the actuator includes an inclined abutment block, an elongated protrusion, an abutment spring, a locking block, a locking spring, a pushing cylinder, and a pushing plate. The inclined abutment block is fixedly installed at the lower end of the sliding internal gear rod. The elongated protrusion is slidably disposed on the sliding internal gear rod. The sliding internal gear rod has a sliding groove for the elongated protrusion to slide on. The abutment spring is disposed in the sliding groove, with its upper end fixedly connected to the top wall of the sliding groove and its lower end fixedly connected to the elongated protrusion. The two locking blocks are slidably disposed in the impact detection block and located on both sides of the connection port. The impact detection block has a locking groove communicating with the connection port for the locking blocks to slide. The locking spring is disposed in the locking groove, with one end fixedly connected to the wall of the locking groove and the other end fixedly connected to the locking block. The pushing cylinder is disposed in the inner wall of the gantry above the extension port, and the pushing plate is fixedly disposed at the extension end of the pushing cylinder.

[0017] Preferably, the control mechanism includes a side elongated box, an elongated slider, a cylindrical lead screw, a U-shaped slide bar, a semi-circular block, a driver, and a release assembly. The two side elongated boxes are fixedly mounted on both sides of the gantry frame. The elongated slider is symmetrically and slidably positioned within the gantry frame's inner cavity. The gantry frame has an arc-shaped protrusion for the elongated slider to slide within the gantry frame. The cylindrical lead screw passes through the elongated slider and symmetrically rotates within the gantry frame's inner cavity, with its upper end extending upwards through the gantry frame. The elongated slider has a threaded through-hole adapted to the cylindrical lead screw for its passage. The gantry frame has an extension hole for the cylindrical lead screw to pass through and extend. The U-shaped slide rod is inserted and slidably mounted on the elongated slider, with the insertion end intermittently contacting the lower end of the rectangular slider. The other end passes through the gantry frame and extends into the inner cavity of the side elongated box. The elongated slider has a sliding insertion hole for the U-shaped slide rod to be inserted. The gantry frame has a rectangular elongated opening that communicates with the inner cavity of the side elongated box for the U-shaped slide rod to pass through and extend. The semi-circular block is fixed on the inner wall of the side of the U-shaped slide rod facing the elongated slider. The driver is located on the upper side of the gantry frame and the release assembly is on the side elongated box.

[0018] Preferably, the driver includes a motor base, a drive motor, and drive belts. The motor base is mounted on the upper side of the gantry frame, the drive motor is mounted on the motor base, and one end of each drive belt is sleeved on the rotating end of the drive motor, while the other end is respectively sleeved on the protruding ends of two cylindrical lead screws.

[0019] Preferably, the release assembly includes a drive rod, a release gear, a U-shaped toothed plate, a triangular kick block, and a reset wedge block. The two drive rods are rotatably disposed within the two side elongated boxes and positioned between the semicircular block and the rectangular opening. The release gear is fixedly sleeved on the lower end of the drive rod. The U-shaped toothed plate is slidably inserted into the two side elongated boxes and meshes with the two release gears respectively. A sliding slot for the U-shaped toothed plate to be slidably inserted is provided through the side elongated box. The triangular kick block is fixedly installed on the U-shaped toothed plate. The reset wedge block is fixedly installed on the inner wall of the side elongated box above the release gear.

[0020] In summary, this application includes at least one of the following beneficial technical effects:

[0021] 1. First, place the anti-collision beam to be tested into the positioning groove. By rotating the threaded rod, drive the clamping plate to slide and clamp the anti-collision beam in the positioning groove, so as to achieve the purpose of positioning, clamping and fixing the anti-collision beam to be tested, so as to facilitate the subsequent bending resistance test of the anti-collision beam.

[0022] 2. Furthermore, depending on the different testing requirements for each test, the bending resistance performance of the anti-collision beam can be tested at different locations. By installing multiple U-shaped blocks and convex connecting blocks in different slots, the corresponding impact detection blocks can be driven by the driver. The height of the impact detection blocks can be adjusted as needed to adjust the impact force, thereby adjusting the force used to test the bending resistance of the anti-collision beam.

[0023] 3. Finally, after adjusting the height of the impact detection block, the triangular kicking block in the release assembly is used to drive the U-shaped toothed plate to slide in the sliding socket. This drives the release gear to rotate the drive rod, which in turn drives the semicircular block and the U-shaped slide rod to slide towards the inner cavity of the side box. That is, the insertion end of the U-shaped slide rod no longer abuts against the lower end of the rectangular slider. Under the action of gravity, the impact detection block descends rapidly and impacts the anti-collision beam, thereby achieving the effect of testing the anti-bending performance of the anti-collision beam. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the entire application.

[0025] Figure 2 This is a cross-sectional view of some components of the scheduled inspection device.

[0026] Figure 3 This is a schematic diagram of the testing facility.

[0027] Figure 4 This is a schematic diagram of the fastening components.

[0028] Figure 5 This is an exploded cross-sectional view of the impact component.

[0029] Figure 6 This is a cross-sectional view of the impact component.

[0030] Figure 7 It is a cross-sectional view of the regulatory agency.

[0031] Figure 8 yes Figure 7 Enlarged view of region A in the middle.

[0032] Figure 9 This releases the component's profile view.

[0033] Figure 10yes Figure 9 Enlarged view of region B in the middle.

[0034] Figure 11 This is a cross-sectional view of the drive rod structure.

[0035] Explanation of reference numerals in the attached drawings: 1. Gantry frame; 11. Positioning base plate; 12. Anti-collision beam; 111. Positioning groove; 2. Regular inspection device; 21. Clamping plate; 112. Arc-shaped slide groove; 22. Connecting round block; 23. Threaded abutment rod; 113. Threaded rotating hole; 24. Convex rotating rod; 3. Testing mechanism; 4. Adjustment mechanism; 31. Rectangular slider; 32. Connecting round rod; 33. Drive gear; 34. Drive rack; 35. Long rod; 5. Fastening assembly. Components; 6. Impact assembly; 36. Sliding bar; 101. Long sliding groove; 51. U-shaped locking block; 52. Restricting protrusion; 53. Pressing spring; 54. Pressing rod; 55. Convex connecting block; 351. Locking groove; 352. Convex sliding groove; 511. Fixing slot; 61. Rectangular fixing block; 62. Sliding internal toothed rod; 63. Toothed column; 64. Hanging toothed block; 65. Rotating wheel; 66. Impact detection block; 7. Operator; 611. Penetration Rectangular hole; 102, insertion port; 612, toothed slide; 641, rotating groove; 661, insertion port; 662, elongated opening; 663, connection port; 664, hanging groove; 71, inclined abutment block; 72, elongated protrusion; 73, abutment spring; 74, locking block; 75, locking spring; 76, push cylinder; 77, push long plate; 621, moving groove; 665, locking slide groove; 41, side elongated box; 42, elongated slider; 4 3. Cylindrical lead screw; 44. U-shaped slide bar; 45. Semicircular block; 8. Driver; 9. Release assembly; 103. Arc-shaped protrusion; 421. Through threaded hole; 104. Protruding hole; 422. Sliding insertion hole; 105. Rectangular elongated opening; 81. Motor base; 82. Drive motor; 83. Drive belt; 91. Drive rod; 92. Release gear; 93. U-shaped toothed plate; 94. Triangular kick block; 95. Reset wedge block; 411. Sliding insertion port. Detailed Implementation

[0036] The following is in conjunction with the appendix Figure 1-11 This application will be described in further detail.

[0037] This application discloses a mechanism for testing the bending resistance of automotive anti-collision beams. It can clamp and fix the anti-collision beam to be tested, and then perform bending resistance tests on the clamped and fixed anti-collision beam at multiple positions and with varying forces to determine whether the anti-collision beam meets quality standards and factory requirements. The mechanism includes a gantry frame 1 and a positioning base plate 11 fixed between the gantry frame 1 and the anti-collision beam 12 to be tested. The positioning base plate 11 has a positioning groove 111 for placing the anti-collision beam 12. A periodic inspection device 2 is provided on the gantry frame 1 and the positioning base plate 11 for clamping, fixing, and testing the bending resistance of the anti-collision beam 12. First, the anti-collision beam 12 to be tested is placed into the positioning groove 111. Then, the periodic inspection device 2 positions, clamps, and fixes the anti-collision beam 12 in the positioning groove 111. After clamping and fixing the anti-collision beam 12, its bending resistance can be tested at different positions and with varying forces.

[0038] Reference Figure 1 and Figure 2 As shown, the inspection device 2 includes a clamping plate 21 slidably disposed in a positioning groove 111. An arc-shaped groove 112 is provided in the positioning groove 111 for the clamping plate 21 to slide. The clamping plate 21 can slide within the positioning groove 111 under force. A connecting block 22 is fixedly installed on the side of the clamping plate 21 away from the anti-collision beam 12. A threaded rod 23 is rotatably disposed on the positioning base plate 11. A threaded rotating hole 113 is threaded on the positioning base plate 11, which is adapted to the threaded rod 23 and communicates with the arc-shaped groove 112 for the threaded rod 23 to be rotatably installed. The connecting block 22 and the threaded rod 23 are rotatably connected by a convex rotating rod 24. It should be noted that the side of the connecting block 22 facing the threaded rod 23 is concave, and the convex rotating rod 24... One end is rotatably located in the recess of the connecting block 22, and the other end is fixedly connected to the threaded abutment 23. When the threaded abutment 23 rotates, it will move in or out of the positioning groove 111. At the same time as the threaded abutment 23 moves, under the action of the connecting block 22 and the convex rotating rod 24, it will synchronously drive the clamping plate 21 to slide in the positioning groove 111. Thus, when the threaded abutment 23 is rotated, the clamping plate 21 can be driven to press against the anti-collision beam 12 in the positioning groove 111 to achieve the purpose of clamping and fixing it. A test mechanism 3 for testing the bending resistance of the anti-collision beam 12 is provided between the gantry frames 1. A control mechanism 4 for adjusting the bending resistance test force of the anti-collision beam 12 is installed on the outside of the gantry frame 1.

[0039] After the anti-collision beam 12 is clamped and fixed, the testing mechanism 3 can be used to adjust the corresponding testing components to test the bending resistance of the anti-collision beam 12 as needed. Finally, the force of testing the bending resistance of the anti-collision beam 12 can be adjusted by the control mechanism 4 according to the actual testing requirements, so as to make corresponding adjustments to different positions and different testing forces for different anti-collision beams 12 that need to be tested.

[0040] Reference Figure 3 As shown, in order to perform bending resistance tests on the anti-collision beam 12 at various positions and under different forces, the testing mechanism 3 includes a rectangular slider 31, a connecting rod 32, a drive gear 33, a drive rack 34, a long rod 35, a fastening assembly 5, and an impact assembly 6. The rectangular slider 31 is symmetrically slidably disposed in the inner cavity of the gantry frame 1 via a sliding bar 36. When the rectangular slider 31 is subjected to force, it can slide up and down in the inner cavity of the gantry frame 1 via the sliding bar 36. One end of the connecting rod 32 is rotatably disposed on the rectangular slider 31, and the other end penetrates the gantry frame 1 and extends to the middle position of the gantry frame 1. The upper part has an elongated sliding opening 101 for the connecting rod 32 to pass through. The drive gear 33 is fixedly sleeved on the connecting rod 32 inside the elongated sliding opening 101. The drive rack 34 is fixedly located at the upper part of the elongated sliding opening 101. When the rectangular slider 31 is lifted by force to the position of the drive rack 34, the drive gear 33 meshes with the drive rack 34. Under the action of the drive rack 34, the drive gear 33 drives the connecting rod 32 to rotate 180 degrees. It should be noted that the length of the drive rack 34 is just enough to drive the drive gear 32 to rotate 180 degrees when it meshes with the drive gear 33.

[0041] The elongated rod 35 is positioned between the two connecting round rods 32, with both ends fixedly connected to the extended ends of the two connecting round rods 32. In this embodiment, five sets of fastening components 5 are arranged equidistantly along the length of the elongated rod 35. Corresponding to the number of fastening components 5, five sets of impact components 6 are located at the top inner side of the gantry frame 1. When the drive rack 34 meshes with the drive gear 33 to drive the connecting round rod 32 to rotate, it can simultaneously drive the elongated rod 35 to rotate 180 degrees, so that the fastening components 5 installed on the elongated rod 35 can cooperate with the impact components 6 to achieve the bending resistance test of the anti-collision beam 12.

[0042] Reference Figure 4As shown, since adjustments are needed based on the different detection positions of the anti-collision beam 12 to meet the detection requirements of different positions of the anti-collision beam 12, the fastening assembly 5 includes a U-shaped locking block 51, a limiting protrusion 52, a clamping spring 53, a pressing rod 54, and a convex connecting block 55. It should be noted that in this embodiment, three U-shaped locking blocks 51 are preferably sequentially locked and slidably disposed on the elongated rod 35 along the length direction of the elongated rod 35. The number of U-shaped locking blocks 51 can be increased or decreased according to the actual situation. The elongated rod 35 has locking grooves 351 equidistantly provided for the U-shaped locking blocks 51 to lock and slide. Two limiting protrusions 52 are respectively limited and slidably disposed on both sides of the locking grooves 351. The elongated rod 35 has A convex groove 352 is connected to the locking groove 351 to limit the sliding of the limiting protrusion 52. The U-shaped locking block 51 is symmetrically provided with fixing slots 511 that are adapted to the limiting protrusion 52. In this embodiment, it is preferable that two clamping springs 53 are installed in each side of the convex groove 352. One end is fixedly connected to the inner wall of the convex groove 352, and the other end is fixedly connected to the limiting protrusion 52. The clamping springs 53 always have a pushing force to drive the limiting protrusion 52 to slide into the locking groove 351. One end of the two pressing rods 54 is rotatably set on the two limiting protrusions 52 respectively, and the other end is hinged to each other. The convex connecting block 55 is fixedly installed on the side of the U-shaped locking block 51 away from the fixing slots 511.

[0043] When installing the U-shaped locking block 51 into the locking groove 351, the hinged ends of the two pressing rods 54 must first be pressed down to drive the two limiting protrusions 52 out of the locking groove 351 and retract into the convex sliding groove 352. Then, the U-shaped locking block 51 is locked into the locking groove 351. After the U-shaped locking block 51 enters the locking groove 351, the two pressing rods 54 are released. Under the action of the clamping spring 53, the protruding ends of the limiting protrusions 52 enter the fixing slot 511, so as to achieve the U-shaped locking block 51. The effect of locking the U-shaped block 51 in the locking groove 351 is that the U-shaped block 51 and the convex connecting block 55 fixedly installed on the U-shaped block 51 will be firmly locked on the elongated rod 35. After the U-shaped block 51 is installed in the locking groove 351 at different positions, the elongated rod 35 is driven to rotate 180 degrees, and can cooperate with the impact component 6 at the corresponding position to perform bending impact testing on the anti-collision beam 12 at the corresponding position to be tested.

[0044] Reference Figure 5 and Figure 6As shown, in order to simulate the deformation effect of the anti-collision beam 12 after being impacted during actual use, the impact component 6 includes a rectangular fixed block 61, a sliding internal toothed rod 62, a toothed column 63, a hanging toothed block 64, a rotating wheel 65, an impact detection block 66, and an operator 7. In this embodiment, five rectangular fixed blocks 61 are fixedly installed on the inner top wall of the gantry frame 1 at equal intervals. The sliding internal toothed rod 62 is slidably disposed on the rectangular fixed block 61, and one end facing the inner top wall of the gantry frame 1 penetrates the gantry frame 1 and extends into the inner cavity of the gantry frame 1. The rectangular fixed block 61 has a through rectangular hole 611 for the sliding internal toothed rod 62 to slide through. The gantry frame 1 has an extension port 102 for the sliding internal toothed rod 62 to penetrate and extend into. It should be noted that the upper half of the sliding internal toothed rod 62 has a "U" shaped notch and multiple protruding teeth distributed on the inner wall.

[0045] The toothed column 63 is rotatably disposed within the through rectangular hole 611, penetrating the sliding inner toothed rod 62, and meshes with the sliding inner toothed rod 62. The toothed column 63 is located at the "U"-shaped notch in the upper half of the sliding inner toothed rod 62. Two hanging toothed blocks 64 are respectively limited and slidably disposed on both sides of the rectangular fixed block 61, located above and below the toothed column 63, and both mesh with the toothed column 63. The rectangular fixed block 61 has toothed sliding openings 612 on both sides that communicate with the through rectangular hole 611 for the toothed blocks 64 to be limited and slid. When the sliding inner toothed rod 62 is subjected to force and slides upward, it can drive the toothed column 63 to rotate. The toothed column 63 will then synchronously drive the two hanging toothed blocks 64 to retract and slide into the rectangular fixed block 61. Similarly, when the sliding inner toothed rod 62 is subjected to force and slides downward to reset, it can drive the toothed column 63 to rotate. The rotation of column 63 drives the two hanging tooth blocks 64 to extend and slide outward from the rectangular fixed block 61. In this embodiment, two rotating wheels 65 are preferably rotatably mounted on the hanging tooth blocks 64 located outside the rectangular fixed block 61. The hanging tooth blocks 64 are provided with rotating grooves 641 for mounting the rotating wheels 65. The impact detection block 66 is hung on the hanging tooth blocks 64 outside the rectangular fixed block 61. When the sliding inner tooth rod 62 is subjected to force and slides upward, it drives the tooth column 63 to rotate and cause the two hanging tooth blocks 64 to retract into the rectangular fixed block 61. At this time, the impact detection block 66 is no longer restricted and can move downward. The function of the rotating wheel 65 is to reduce the friction between the impact detection block 66 and the hanging tooth blocks 64 when the hanging tooth blocks 64 retract into the rectangular fixed block 61 or extend outward.

[0046] The impact detection block 66 has, in sequence, an insertion port 661 for inserting a rectangular fixed block 61, an elongated opening 662 communicating with the insertion port 661 for inserting a sliding internal toothed rod 62, and a connecting opening 663 communicating with the elongated opening 662 for inserting a convex connecting block 55. After the elongated rod 35 is reversed 180 degrees, it drives the convex connecting block 55 toward the impact detection block 66. The rectangular slider 31 is forced to drive the elongated rod 35 to continue sliding upward, which can drive the convex connecting block 55 to finally enter. The insertion port 661 is provided with a hanging groove 664 for the hanging tooth block 64 to extend out. When the two hanging tooth blocks 64 extend outward from the rectangular fixed block 61, the hanging tooth block 64 will extend into the hanging groove 664, so that the impact detection block 66 is hung on the hanging tooth block 64. At this time, the impact detection block 66 is restricted by the hanging tooth block 64 and cannot move. The actuator 7 is provided on the sliding inner tooth rod 62 and the impact detection block 66 so as to cooperate with the convex connecting block 55.

[0047] Continue to refer to Figure 5 and Figure 6 The diagram shows the structure of the actuator 7 in this embodiment. The actuator 7 includes an inclined abutment block 71, an elongated protrusion 72, an abutment spring 73, a locking block 74, a locking spring 75, a pushing cylinder 76, and a pushing plate 77. The inclined abutment block 71 is fixedly installed at the lower end of the sliding internal gear rod 62. The elongated protrusion 72 is slidably disposed on the sliding internal gear rod 62. The sliding internal gear rod 62 has a sliding groove 621 for the elongated protrusion 72 to slide on. The lower end of the elongated protrusion 72 is flush with the lower end of the inclined abutment block 71. The abutment spring 73 is disposed in the sliding groove 621, and its upper end is flush with the top wall of the sliding groove 621. The lower end is fixedly connected to the elongated protrusion 72. The contact spring 73 always has a force that pushes the elongated protrusion 72 downward. It should be noted that the pushing force of the contact spring 73 on the elongated protrusion 72 is greater than the frictional force between the sliding internal toothed rod 62, the toothed column 63, the hanging toothed block 64 and the impact detection block 66. That is, when the elongated protrusion 72 slides upward under force, although the elongated protrusion 72 and the sliding internal toothed rod 62 are elastically connected by the contact spring 73, the force of the contact spring 73 is large, which causes the elongated protrusion 72 to slide upward under force, which can drive the sliding internal toothed rod 62 to slide upward synchronously.

[0048] Two locking blocks 74 are slidably disposed within the impact detection block 66 and located on both sides of the connection port 663. The impact detection block 66 has a locking groove 665 communicating with the connection port 663 to allow the locking blocks 74 to slide. A locking spring 75 is disposed within the locking groove 665, with one end fixedly connected to the wall of the locking groove 665 and the other end fixedly connected to the locking block 74. The locking spring 75 always has a force that pushes the locking block 74 towards the connection port 663, and the force of the locking spring 75 is less than that of the sliding groove 663. The friction between the rack 62, the column 63 and the hanging block 64, that is, when the inclined surface block 71 enters the inclined surface on both sides of the connection port 663 and abuts against the two locking blocks 74, even if the locking blocks 74 are under the force of the locking spring 75, they cannot push the inclined surface block 71 and the sliding inner rack 62 to slide upward through the inclined surface of the inclined surface block 71; the pushing cylinder 76 is set in the inner wall of the gantry 1 above the extension port 102, and the pushing plate 77 is fixedly set at the extension end of the pushing cylinder 76.

[0049] When the rectangular slider 31 is subjected to force, the elongated rod 35 slides upward. When the convex connecting block 55 enters the connection port 663 inside the impact detection block 66, it first abuts against the two locking blocks 74, driving the locking blocks 74 to slide into the locking groove 665. When the convex connecting block 55 enters the connection port 663, it abuts against the lower end of the elongated protrusion 72 inside the connection port 663, thus generating an upward pushing force on the elongated protrusion 72. Although the inclined abutment block 71 and the lower end of the elongated protrusion 72 are in a flush state and are both installed on the sliding internal toothed rod, However, due to the thickness of the convex connecting block 55, when the convex connecting block 55 enters the connection port 663, it will only abut against the elongated convex piece 72 and will not contact the inclined abutment block 71. Under the action of the convex connecting block 55, the elongated convex piece 72 slides upward and synchronously drives the sliding internal tooth rod 62 to slide upward. The sliding internal tooth rod 62 drives the tooth column 63 to rotate and drive the two hanging tooth blocks 64 to retract inward. When the convex connecting block 55 completely enters the connection port 663, the two hanging tooth blocks 64 also completely retract into the rectangular fixed block 61.

[0050] Under the action of the locking spring 75, the locking block 74 re-enters the connection port 663 and abuts against the convex connecting block 55. Since the width of the inclined surfaces on both sides of the convex connecting block 55 is greater than the lower part of the convex connecting block 55, the two locking blocks 74 lock the convex connecting block 55 in the connection port 663. At this time, the impact detection block 66 is no longer restricted by the toothed block 64 and can move freely. Since the convex connecting block 55 is locked to the impact detection block 66 at this time, when the elongated rod 35 moves downward, the convex connecting block 55 can drive the impact detection block 66 to move synchronously. The rectangular slider 31 is forced to drive the elongated rod 35 to slide downward. When the drive gear 33 is activated, it will mesh with the drive rack 34 again, and the elongated rod 35 will rotate 180 degrees to return to its initial state. The impact detection block 66, which was originally on the upper side of the elongated rod 35, will be on the lower side of the elongated rod 35 after the rotation of the elongated rod 35, that is, the impact detection block 66 will face the lower anti-collision beam 12. By installing U-shaped clips 51 at different positions, the impact detection block 66 at the corresponding position can be removed. The impact detection block 66 can simulate the impact effect on the anti-collision beam 12. By observing whether the deformation degree of the anti-collision beam 12 after the impact meets the specified deformation range, the purpose of bending resistance testing of the anti-collision beam 12 can be achieved.

[0051] After the test is completed, the drive rod 35 slides upward, reverses 180 degrees, and impacts the detection block 66 to return to the initial position. Because the upper end of the sliding internal gear rod 62 will extend into the inner cavity of the gantry frame 1 when it slides upward under force, the push cylinder 76 is activated to drive the push plate 77 to move downward, causing the sliding internal gear rod 62 that has extended into the gantry frame 1 to slide downward and reset. The synchronous gear column 63 rotates, causing the two hanging gear blocks 64 to extend outward into the hanging groove 664 in the impact detection block 66. The impact detection block 66 is once again restricted by the hanging gear blocks 64 and hung on the hanging gear blocks 64. When the sliding internal gear rod 62 slides downward, the inclined abutment block 7 installed at the lower end of the sliding internal gear rod 62... 1. The two locking blocks 74 will slide into the locking groove 665, thereby opening the connection port 663 and releasing the locking of the convex connecting block 55. Under the force of the pushing cylinder 76, the elongated convex piece 72 abuts against the convex connecting block 55. At this time, the abutment spring 73 will deform, and the inclined abutment block 71 can slide down smoothly to abut and open the two locking blocks 74. After the connection port 663 is opened, the elongated rod 35 moves down and the convex connecting block 55 can be smoothly pulled out and disengaged from the connection port 663. In this way, by installing the U-shaped locking block 51 at different locking grooves 351, the impact detection block 66 at the corresponding position can be removed to perform impact detection on the corresponding position of the anti-collision beam 12.

[0052] Reference Figure 7 and Figure 8As shown, furthermore, since it is necessary to control the up-and-down sliding of the driving rectangular slider 31 and simultaneously adjust the impact force, the control mechanism 4 includes a side elongated box 41, an elongated slider 42, a cylindrical lead screw 43, a U-shaped slide bar 44, a semi-circular block 45, a driver 8, and a release assembly 9; the two side elongated boxes 41 are fixedly installed on both sides of the gantry frame 1, the elongated slider 42 is symmetrically limited and slidably installed in the inner cavity of the gantry frame 1, the gantry frame 1 has an arc-shaped protrusion 103 for the elongated slider 42 to be limited and slidably installed, the cylindrical lead screw 43 passes through the elongated slider 42 and is symmetrically rotated in the inner cavity of the gantry frame 1, and the upper end extends upward through the gantry frame 1, the elongated slider 42 has a threaded through threaded hole 421 adapted to the cylindrical lead screw 43 for it to pass through, the cylindrical lead screw 43 rotates under force and can drive the elongated slider 42 to slide up and down in the inner cavity of the gantry frame 1; the gantry frame 1 has a circular protrusion 103 for the circular slider 42 to be limited and slidably installed, the cylindrical lead screw 43 can be symmetrically rotated in the inner cavity of the gantry frame 1, and the cylindrical lead screw 43 can drive the elongated slider 42 to slide up and down in the inner cavity of the gantry frame 1; the gantry frame 1 has a circular protrusion 103 for the circular slider 42 to be limited and slidably installed, the cylindrical lead screw 43 is symmetrically rotated in the inner cavity of the gantry frame 1, and the cylindrical lead screw 43 rotates under force and can drive the elongated slider 42 to slide up and down The lead screw 43 extends through the protruding hole 104. The U-shaped slide rod 44 is inserted and slidably mounted on the elongated slider 42, with its insertion end intermittently contacting the lower end of the rectangular slider 31. The other end extends through the gantry frame 1 into the inner cavity of the side elongated box 41. The elongated slider 42 has a sliding insertion hole 422 for the U-shaped slide rod 44 to be inserted. Under the action of the U-shaped slide rod 44, when the elongated slider 42 slides up and down, it can synchronously drive the rectangular slider 31 to slide up and down in the inner cavity of the gantry frame 1. The gantry frame 1 has a rectangular elongated opening 105 that communicates with the inner cavity of the side elongated box 41 for the U-shaped slide rod 44 to extend through. The semi-circular block 45 is fixed on the inner wall of the side of the U-shaped slide rod 44 facing the elongated slider 42. The driver 8 is located on the upper side of the gantry frame 1 to drive the lead screw 43 to rotate. The release assembly 9 is on the side elongated box 41 and can change the sliding position of the U-shaped slide rod 44 on the elongated slider 42.

[0053] Looking back Figure 7 As shown, in order to drive the cylindrical lead screw 43, the driver 8 includes a motor base 81, a drive motor 82, and drive belts 83. The motor base 81 is installed on the upper side of the gantry frame 1, the drive motor 82 is mounted on the motor base 81, one end of the two drive belts 83 is sleeved on the rotating end of the drive motor 82, and the other end is respectively sleeved on the protruding ends of the two cylindrical lead screws 43. By controlling the forward and reverse rotation of the drive motor 82, the forward and reverse rotation of the cylindrical lead screw 43 can be controlled, so as to control the elongated slider 42 to slide up and down in the inner cavity of the gantry frame 1. Under the action of the U-shaped slide bar 44, the two rectangular sliders 31 can be synchronously controlled to drive the elongated bar 35 to slide up and down between the gantry frames 1.

[0054] Reference Figures 9 to 11As shown, to release the control effect on the rectangular slider 31 and allow it to automatically slide downwards under gravity at a specific time, the release component 9 includes a drive rod 91, a release gear 92, a U-shaped toothed plate 93, a triangular kick block 94, and a reset inclined block 95. The two drive rods 91 are respectively rotatably disposed inside the two long boxes 41 and positioned between the semicircular block 45 and the rectangular long opening 105. It should be noted that the drive rods 91 are semicircularly convex. Rotating the drive rods 91 to make them contact the semicircular block 45 can drive the U-shaped slider 44 to slide away from the rectangular slider 31, that is, the lower end of the U-shaped slider 44 is no longer in contact with the rectangular slider 31. 1. When there is contact, the rectangular slider 31 is not restricted by the contact of the U-shaped slider 44 and can slide downward under the action of gravity; the release gear 92 is fixedly sleeved on the lower end of the drive rod 91, the U-shaped toothed plate 93 is slidably inserted on the two side boxes 41 and meshes with the two release gears 92 respectively, and the side box 41 is provided with a sliding insertion port 411 for the U-shaped toothed plate 93 to slide in. The drive U-shaped toothed plate 93 can drive the drive rod 91 to rotate synchronously by sliding through the release gear 92; the triangular kick block 94 is fixedly installed on the U-shaped toothed plate 93, and the reset inclined block 95 is fixedly installed on the inner wall of the side box 41 above the release gear 92.

[0055] After removing the impact detection block 66 from the corresponding position, the height of the impact detection block 66 is controlled according to the required impact force. After adjusting the height of the long rod 35 by driving the cylindrical lead screw 43 through the drive motor 82, the triangular kick block 94 is kicked to drive the long rod 91 to slide and drive the release gear 92 to rotate. The release gear 92 drives the long rod 91 to rotate, so as to pull the U-shaped slide rod 44 away from the rectangular slider 31. The U-shaped slide rod 44 no longer resists the rectangular slider 31. Under the gravity of the impact detection block 66, the rectangular slider 31 slides down rapidly, thereby achieving the effect of the impact detection block 66 hitting the anti-collision beam 12. The impact force can be adjusted by controlling the falling height of the impact detection block 66. After the impact is completed, the cylindrical lead screw 43 is rotated to drive the long slider 42 to fall below the rectangular slider 31. The U-shaped slide rod 44 is re-inserted and reset under the action of the inclined surface of the reset wedge block 95. Moving upward can again resist the lower side of the rectangular slider 31 to control the up and down movement of the rectangular slider 31.

[0056] The implementation principle of this embodiment is as follows:

[0057] (1) Optional installation position: First, place the anti-collision beam 12 to be tested into the positioning groove 111. Drive the clamping plate 21 to clamp and fix the anti-collision beam 12 by rotating the threaded rod 23. According to the position to be tested, install the U-shaped card block 51 and the convex connecting block 55 on the corresponding slot 351 of the long rod 35.

[0058] (2) Removal and Adjustment: Start the drive motor 82 to drive the cylindrical lead screw 43 to rotate, control the rectangular slider 31 to drive the long rod 35 to rise. After rising to a certain position, under the action of the drive rack 34, the long rod 35 is driven to reverse so that the convex connecting block 55 faces upward toward the impact detection block 66. The long rod 35 continues to rise and the convex connecting block 55 enters the connection port 663. The convex connecting block 55 is locked and connected with the impact detection block 66. At the same time, the hanging tooth block 64 retracts and releases the impact detection block 66, so that the long rod 35 moves down and can synchronously drive the impact detection block 66 to move. After moving down to the position of the drive rack 34, the impact detection block 66 follows the long rod 35 to reverse synchronously, causing the impact detection block 66 to face the lower anti-collision beam 12.

[0059] (3) Adjusting the height: Then, the cylindrical lead screw 43 is rotated by the drive motor 82 to adjust the height of the elongated rod 35, that is, to adjust the drop height of the impact detection block 66, thereby adjusting the impact force of the impact detection block 66 on the anti-collision beam 12.

[0060] (4) Release the drop: After adjusting the drop height of the impact detection block 66, kick the triangular kick block 94 through the U-shaped toothed plate 93 and the release gear 92 to drive the long rod 91 to rotate, so that the U-shaped slide bar 44 is pulled away from the rectangular slider 31, so that the U-shaped slide bar 44 no longer touches the rectangular slider 31. Under the action of gravity, the impact detection block 66 falls rapidly downward to impact the anti-collision beam 12, thereby achieving the purpose of testing the anti-bending performance of the anti-collision beam 12 at different positions and with various testing forces.

[0061] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A kind of automobile anti-collision beam anti-bending detection mechanism, including portal frame (1) and the positioning base plate (11) of clamping fixed between portal frame (1), the anti-collision beam (12) needing to be placed on the positioning base plate (11) and detected, positioning groove (111) is set up on the positioning base plate (11) and is placed for anti-collision beam (12), it is characterized by: The gantry (1) and the positioning base plate (11) are provided with a detection device (2) for clamping and fixing the anti-collision beam (12) to detect the bending resistance performance; The detection device (2) comprises a abutting plate (21) slidingly arranged in a positioning groove (111), the positioning groove (111) is provided with an arc-shaped sliding groove (112) for sliding of the abutting plate (21), the abutting plate (21) is fixedly installed with a connecting circular block (22) on the side away from the anti-collision beam (12), the positioning base plate (11) is rotatably provided with a threaded abutting rod (23), the positioning base plate (11) is threadedly provided with a threaded rotating hole (113) adapted to the threaded abutting rod (23) and communicating with the arc-shaped sliding groove (112) for rotating installation of the threaded abutting rod (23), the connecting circular block (22) and the threaded abutting rod (23) are rotatably connected through a convex rotating rod (24), the gantry (1) is provided with a test mechanism (3) for detecting the bending resistance of the anti-collision beam (12), and the outer side of the gantry (1) is provided with a control mechanism (4) for adjusting the bending resistance detection force of the anti-collision beam (12); The test mechanism (3) comprises a rectangular slide block (31), a connecting circular rod (32), a driving gear (33), a driving rack (34), an elongated rod (35), a buckling assembly (5) and a impact assembly (6), the rectangular slide block (31) is symmetrically slidingly arranged in the inner cavity of the gantry (1) through a sliding bar (36), one end of the connecting circular rod (32) is rotatably arranged on the rectangular slide block (31), the other end penetrates the gantry (1) and extends to the middle position of the gantry (1), the gantry (1) is provided with an elongated sliding opening (101) for penetration of the connecting circular rod (32), the driving gear (33) is fixedly sleeved on the connecting circular rod (32) in the elongated sliding opening (101), the driving rack (34) is fixedly arranged at the upper position of the elongated sliding opening (101), the elongated rod (35) is arranged between the two connecting circular rods (32), and the two ends are fixedly connected with the extending ends of the two connecting circular rods (32), a plurality of groups of the buckling assembly (5) are arranged on the elongated rod (35) in sequence along the length direction of the elongated rod (35), and a plurality of groups of the impact assembly (6) are arranged at the top position of the inner side of the gantry (1).

2. The anti-bending detection mechanism for a vehicle's bumper beam according to claim 1, wherein: The buckle assembly (5) comprises U-shaped clamping blocks (51), limiting tabs (52), abutting springs (53), pressing rods (54), convex connecting blocks (55), a plurality of U-shaped clamping blocks (51) are sequentially clamped and slidably arranged on the elongated rod (35) along the length direction of the elongated rod (35), a plurality of clamping grooves (351) are equidistantly arranged on the elongated rod (35) and used for clamping and sliding of the U-shaped clamping blocks (51), two limiting tabs (52) are limitingly and slidably arranged on both sides of the clamping grooves (351), a convex sliding groove (352) is arranged on the elongated rod (35) and communicates with the clamping grooves (351) and is used for limiting sliding of the limiting tabs (52), a fixing clamping hole (511) is symmetrically arranged on the U-shaped clamping block (51) and is matched with the limiting tab (52), a plurality of abutting springs (53) are arranged in the convex sliding groove (352), one end of each abutting spring (53) is fixedly connected with the inner wall of the convex sliding groove (352), the other end of each abutting spring (53) is fixedly connected with the limiting tab (52), one end of each pressing rod (54) is rotatably arranged on the limiting tab (52), and the other end of each pressing rod (54) is hingedly arranged on the limiting tab (52), and the convex connecting block (55) is fixedly arranged on the side of the U-shaped clamping block (51) away from the fixing clamping hole (511).

3. The anti-bending detection mechanism of the automobile anti-collision beam according to claim 2, characterized in that: The impact assembly (6) comprises rectangular fixed blocks (61), sliding inner tooth rods (62), tooth columns (63), tooth hanging blocks (64), rotating wheels (65), impact detection blocks (66) and operating devices (7), a plurality of rectangular fixed blocks (61) are sequentially and equidistantly fixedly arranged on the inner top wall of the portal frame (1), the sliding inner tooth rod (62) penetrates through the rectangular fixed block (61) and is slidably arranged on the rectangular fixed block (61), one end of the sliding inner tooth rod (62) penetrates through the portal frame (1) and extends into the inner cavity of the portal frame (1) and faces the inner top wall of the portal frame (1), the rectangular fixed block (61) penetrates through and is provided with a through rectangular hole (611) for sliding of the sliding inner tooth rod (62), and the portal frame (1) is provided with a penetration opening (102) for penetration and extension of the sliding inner tooth rod (62); The tooth column (63) penetrates through the sliding inner tooth rod (62) and is rotatably arranged in the through rectangular hole (611) and is engaged with the sliding inner tooth rod (62), the tooth hanging blocks (64) are limitingly and slidably arranged on both sides of the rectangular fixed block (61) and are located above and below the tooth column (63) and are engaged with the tooth column (63), the rectangular fixed block (61) is provided with tooth hanging sliding openings (612) on both sides and is communicated with the through rectangular hole (611) and is used for limiting sliding of the tooth hanging blocks (64), a plurality of rotating wheels (65) are rotatably arranged on the tooth hanging blocks (64) outside the rectangular fixed block (61), the tooth hanging blocks (64) are provided with rotating grooves (641) for mounting of the rotating wheels (65), and the impact detection blocks (66) are hung on the tooth hanging blocks (64) outside the rectangular fixed block (61). The impact detection block (66) is sequentially provided with an insertion opening (661) for inserting the rectangular fixed block (61), an elongated opening (662) in communication with the insertion opening (661) for extending the sliding inner tooth rod (62), and a connecting opening (663) in communication with the elongated opening (662) for adaptively inserting the convex connecting block (55), the insertion opening (661) is provided with a hanging groove (664) for extending the hanging tooth block (64), and the operator (7) is arranged on the sliding inner tooth rod (62) and the impact detection block (66).

4. The anti-bending detection mechanism of the automobile anti-collision beam according to claim 3, characterized in that: The operator (7) comprises an inclined surface resisting block (71), an elongated tab (72), a resisting spring (73), a clamping block (74), a clamping spring (75), a pushing air cylinder (76), and a pushing long plate (77), the inclined surface resisting block (71) is fixedly installed at the lower end of the sliding inner tooth rod (62), the elongated tab (72) is slidably arranged on the sliding inner tooth rod (62), the sliding inner tooth rod (62) is provided with a movement groove (621) for slidably installing the elongated tab (72), the resisting spring (73) is arranged in the movement groove (621), the upper end is fixedly connected with the top wall of the movement groove (621), and the lower end is fixedly connected with the elongated tab (72), the two clamping blocks (74) are slidably arranged in the impact detection block (66) and located on both sides of the connecting opening (663), the impact detection block (66) is provided with a clamping sliding groove (665) in communication with the connecting opening (663) for sliding the clamping block (74), the clamping spring (75) is arranged in the clamping sliding groove (665), one end is fixedly connected with the wall of the clamping sliding groove (665), and the other end is fixedly connected with the clamping block (74), the pushing air cylinder (76) is arranged in the inner cavity wall of the gantry (1) above the insertion opening (102), and the pushing long plate (77) is fixedly arranged at the telescopic end of the pushing air cylinder (76).

5. The anti-bending detection mechanism for a vehicle's bumper beam according to claim 1, wherein: The regulating mechanism (4) comprises side long boxes (41), long sliding blocks (42), cylindrical lead screws (43), U-shaped sliding rods (44), semicircular blocks (45), drivers (8) and release assemblies (9), the two side long boxes (41) are fixedly arranged on the two sides of the gantry (1), the long sliding blocks (42) are symmetrically and limitingly arranged in the inner cavity of the gantry (1), the gantry (1) is provided with an arc-shaped convex groove (103) for the limiting sliding of the long sliding blocks (42), the cylindrical lead screws (43) are symmetrically and rotatably arranged in the inner cavity of the gantry (1) and penetrate the long sliding blocks (42), and the upper ends penetrate the gantry (1) and extend upwards, the long sliding blocks (42) are provided with penetrating threaded holes (421) which are threaded and adapted to the penetration of the cylindrical lead screws (43), the gantry (1) is provided with an extension hole (104) for the penetration and extension of the cylindrical lead screws (43), the U-shaped sliding rods (44) are inserted and slidably arranged on the long sliding blocks (42), the insertion ends intermittently abut against the lower ends of the rectangular sliding blocks (31), the other ends penetrate the gantry (1) and extend into the inner cavities of the side long boxes (41), the long sliding blocks (42) are provided with sliding insertion holes (422) for the insertion of the U-shaped sliding rods (44), the gantry (1) is provided with a rectangular long opening (105) which is in communication with the inner cavities of the side long boxes (41) and through which the U-shaped sliding rods (44) penetrate and extend, the semicircular blocks (45) are fixedly arranged on the inner side walls of the U-shaped sliding rods (44) on the side facing the long sliding blocks (42), the drivers (8) are arranged on the upper side of the gantry (1), and the release assemblies (9) are arranged on the side long boxes (41).

6. The anti-bending detection mechanism of the automobile anti-collision beam according to claim 5, characterized in that: The driver (8) comprises a motor base (81), a driving motor (82) and driving belts (83), the motor base (81) is mounted on the upper side of the gantry (1), the driving motor (82) is arranged on the motor base (81), and the two driving belts (83) are sleeved at one end of the rotating end of the driving motor (82) and at the other end of the extension end of the two cylindrical lead screws (43).

7. The anti-bending detection mechanism for a vehicle's bumper beam according to claim 5, wherein: The release assembly (9) comprises driving long rods (91), release gears (92), U-shaped toothed plates (93), triangular kicking blocks (94) and reset inclined blocks (95), the two driving long rods (91) are rotatably arranged in the two side long boxes (41) and between the semicircular blocks (45) and the rectangular long openings (105), the release gears (92) are fixedly sleeved at the lower ends of the driving long rods (91), the U-shaped toothed plates (93) are slidably inserted into the two side long boxes (41) and engaged with the two release gears (92) respectively, the side long boxes (41) are provided with sliding insertion openings (411) for the sliding insertion of the U-shaped toothed plates (93), the triangular kicking blocks (94) are fixedly mounted on the U-shaped toothed plates (93), and the reset inclined blocks (95) are fixedly mounted on the inner walls of the side long boxes (41) above the release gears (92).

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