A frame rear cross beam energy absorption box detection device with rapid calibration mark

Abstract

This utility model discloses a rear crossbeam energy-absorbing box inspection fixture with a quick calibration mark. The fixture includes a base, a clamping mechanism mounted on the top of the base, a collision mechanism on the top of the base, an energy-absorbing box between the collision mechanism and the base, and a calibration mechanism on the top of the base. This utility model automatically guides the energy-absorbing box to fall precisely through a lower-wide, upper-narrow protrusion structure on the top of the positioning seat, allowing the reinforcing rib to naturally engage with the protrusion, achieving calibration without adjustment. Then, by moving the limiting rod and the movable rod, a gear and rack simultaneously drive the top block to lift the positioning seat and the movable rod, pressing them together to form a two-way locking mechanism, replacing the traditional multi-clamp step-by-step operation. Next, the limiting hook automatically locks the movable rod using the characteristics of a torsion spring, ensuring the stability of the collision test. A sensor located on the top of the protrusion directly captures the impact force data, significantly improving detection efficiency and operational smoothness.

Description

Technical Field

[0001] This utility model relates to the field of energy-absorbing box testing devices, specifically a vehicle frame rear crossbeam energy-absorbing box inspection tool with a rapid calibration mark. Background Technology

[0002] Energy-absorbing boxes are key safety devices in automotive bumper systems. They are installed between the anti-collision beam and the longitudinal beams of the vehicle body. Their core function is to absorb collision energy through controlled crumple deformation, thereby reducing the damage to the passenger compartment and vehicle structure caused by the impact. Therefore, during the production of energy-absorbing boxes, it is necessary to test the produced energy-absorbing boxes to ensure their quality.

[0003] In existing technologies, when testing the produced energy-absorbing boxes, the energy that the energy-absorbing box can absorb is usually detected by impact testing to determine the range of energy absorption. However, the current testing method requires fixing the energy-absorbing box to the testing device with multiple sets of clamps before it can be tested. This clamping method is cumbersome and cannot quickly calibrate the energy-absorbing box, which is time-consuming. Summary of the Invention

[0004] Based on this, the purpose of this utility model is to provide a vehicle frame rear crossbeam energy absorption box inspection tool with a quick calibration mark, so as to solve the technical problem that it is cumbersome to fix the energy absorption box on the testing device with multiple sets of clamps before it can be tested. This clamping method is also cumbersome and cannot quickly calibrate the energy absorption box, which is a waste of time.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a vehicle frame rear crossbeam energy-absorbing box inspection tool with a rapid calibration mark, comprising a base, a clamping mechanism mounted on the top of the base, a collision mechanism provided on the top of the base, an energy-absorbing box disposed between the collision mechanism and the base, and a calibration mechanism provided on the top of the base. The clamping mechanism includes movable rods, limiting rods, a top block, and a sliding seat, wherein two sets of movable rods are rotatably connected to the base, and the bottom of the movable rods is provided with protrusions. The limiting rods are fixedly installed between one end of the two sets of movable rods. The sliding seat is slidably connected to the interior of the base, and the top of the sliding seat is fixedly connected to the top block. The calibration mechanism includes a positioning seat, wherein the positioning seat is slidably connected to the base, and the positioning seat is located on top of the sliding seat. The top of the positioning seat is provided with multiple sets of protrusions that are wider at the bottom and narrower at the top, and the protrusions on the top of the positioning seat serve to quickly calibrate the energy-absorbing box.

[0006] By adopting the above technical solution, this utility model automatically guides the energy-absorbing box to fall precisely through the bottom-wide and top-narrow protrusion structure on the top of the positioning seat, so that the reinforcing rib and the gap of the protrusion are naturally engaged, achieving calibration without adjustment. Then, by moving the limiting rod and the movable rod, the top block is simultaneously driven to lift the positioning seat and the movable rod to press the outer shell of the energy-absorbing box, forming a two-way locking, which replaces the traditional multi-clamp step-by-step operation. Then, the limiting hook automatically locks the movable rod using the characteristics of the torsion spring, ensuring the stability of the collision test. The sensor located on the top of the protrusion directly captures the impact force data and generates detection data in real time, which greatly improves the detection efficiency and operation smoothness. It solves the technical problem that it is cumbersome to fix the energy-absorbing box on the detection device with multiple sets of clamps before it can be tested, and that this clamping method is not quick to calibrate the energy-absorbing box, which is also time-consuming.

[0007] Furthermore, the clamping mechanism also includes a rotating shaft, a gear, and a rack. The rotating shaft is fixedly installed between two sets of movable rods. The gear is fixedly installed outside the rotating shaft. The bottom of the gear is movably connected to the rack through tooth meshing. One end of the rack is fixedly connected to a sliding seat and slidably connected to the base. The clamping mechanism also includes a torsion spring module and a limiting hook. The limiting hook is movably connected to the top of the base. The bottom of the limiting hook is fixedly installed with a torsion spring module, and the limiting hook is elastically connected to the base through the torsion spring module.

[0008] By adopting the above technical solution, a gear is installed on the outside of the rotating shaft, and a rack is installed at the bottom of the gear. The teeth of the gear and the rack mesh with each other. Therefore, when the gear rotates with the rotating shaft, the rack slides inside the base with the rotation of the gear, which moves the limit hook and makes it rotate on the base, allowing the movable rod to fit against the top of the base. A torsion spring module is installed at the bottom of the limit hook. Therefore, when the limit hook is moved, the torsion spring module stores energy. After the movable rod fits against the base, the limit hook is released, and the limit hook will reset under the action of the elastic potential energy of the torsion spring module, thereby locking the limit rod.

[0009] Furthermore, the collision mechanism includes a cylinder and a collision module, wherein the cylinder is fixedly mounted on a support frame on the top of the base, and the output end of the cylinder is fixedly connected to the collision module. The calibration mechanism also includes sensors, wherein multiple sets of sensors are fixedly mounted on protrusions on the top of the positioning seat. The energy-absorbing box includes a shell and reinforcing ribs, wherein the shell is located on the top of the positioning seat, and the reinforcing ribs are fixedly mounted inside the shell.

[0010] By adopting the above technical solution, the collision mechanism is activated, and the cylinder is ventilated to adjust its internal pressure, causing the collision module at its output end to descend rapidly, thereby colliding with the outer shell of the energy absorption box. During the collision, since a sensor is installed on the top of the positioning seat, the force generated by the collision module after colliding with the outer shell will be detected by the sensor, thus obtaining the detection data of the energy absorption box after the collision.

[0011] In summary, this utility model has the following beneficial effects: The utility model automatically guides the energy-absorbing box to fall precisely through the lower-wide, upper-narrow protrusion structure on the top of the positioning seat, allowing the reinforcing rib and the protrusion to naturally fit together, achieving calibration without adjustment. Then, by moving the limiting rod and the movable rod, the top block is simultaneously driven to lift the positioning seat and the movable rod to press the energy-absorbing box shell together, forming a two-way locking, replacing the traditional multi-clamp step-by-step operation. Next, the limiting hook automatically locks the movable rod using the characteristics of a torsion spring, ensuring the stability of the collision test. The sensor located on the top of the protrusion directly captures the impact force data and generates detection data in real time, significantly improving detection efficiency and operational smoothness. This solves the technical problem that it requires multiple sets of clamps to fix the energy-absorbing box on the detection device before testing, a cumbersome clamping method that cannot quickly calibrate the energy-absorbing box and is time-consuming. Attached Figure Description

[0012] Figure 1 This is a first-view structural schematic diagram of the present invention;

[0013] Figure 2 This is a structural schematic diagram of the present invention from a second perspective;

[0014] Figure 3 This is a cross-sectional view of some parts of this utility model;

[0015] Figure 4 This utility model Figure 3 Enlarged view of point A;

[0016] Figure 5 This is a first-view structural schematic diagram of a partial component of this utility model;

[0017] Figure 6 This is a second-view structural schematic diagram of a partial part of this utility model.

[0018] In the diagram: 1. Base; 2. Clamping mechanism; 201. Movable rod; 202. Rotating shaft; 203. Gear; 204. Rack; 205. Limiting rod; 206. Torsion spring module; 207. Limiting hook; 208. Top block; 209. Sliding seat; 3. Energy absorption box; 301. Outer shell; 302. Reinforcing rib; 4. Collision mechanism; 401. Cylinder; 402. Collision module; 5. Calibration mechanism; 501. Positioning seat; 502. Sensor. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0020] The embodiments of this utility model will be described below based on its overall structure.

[0021] A frame rear crossbeam energy-absorbing box inspection tool with quick calibration markings, such as... Figure 1-6 As shown, it includes a base 1, a clamping mechanism 2 installed on the top of the base 1, a collision mechanism 4 set on the top of the base 1, an energy-absorbing box 3 set between the collision mechanism 4 and the base 1, and a calibration mechanism 5 set on the top of the base 1, wherein the energy-absorbing box 3 is placed on the calibration mechanism 5.

[0022] Furthermore, the clamping mechanism 2 includes a movable rod 201, a limiting rod 205, a top block 208, and a sliding seat 209. Two sets of movable rods 201 are rotatably connected to the base 1, and a protrusion is provided at the bottom of the movable rod 201. The limiting rod 205 is fixedly installed between one end of the two sets of movable rods 201. The sliding seat 209 is slidably connected to the inside of the base 1, and the top of the sliding seat 209 is fixedly connected to the top block 208. The calibration mechanism 5 includes a positioning seat 501, which is slidably connected to the base 1 and is located on top of the sliding seat 209. The top of the positioning seat 501 is provided with multiple sets of protrusions that are wider at the bottom and narrower at the top. The protrusions on the top of the positioning seat 501 serve to quickly calibrate the energy-absorbing box 3.

[0023] The positioning seat 501 is equipped with multiple sets of narrow upper protrusions on the lower frame. Therefore, after the energy-absorbing box 3 is placed on the positioning seat 501, it will sit directly on the positioning seat 501. The reinforcing rib 302 will be limited between every two sets of protrusions under the action of the protrusions, so that the energy-absorbing box 3 can be quickly positioned and calibrated. The manually movable limiting rod 205 will cause the movable rod 201 to rotate around the rotating shaft 202. The top block 208 will lift the bottom of the positioning seat 501. The bottom sides of the two sets of movable rods 201 are equipped with protrusions. After the movable rod 201 rotates 90 degrees, the protrusions will fit against the outer shell 301 of the energy-absorbing box 3. Therefore, under the action of the top block 208 and the protrusions of the movable rod 201, the energy-absorbing box 3 can be clamped to prevent the energy-absorbing box 3 from shifting during the testing process.

[0024] In the example, the clamping mechanism 2 also includes a rotating shaft 202, a gear 203, and a rack 204. The rotating shaft 202 is fixedly installed between two sets of movable rods 201. The gear 203 is fixedly installed outside the rotating shaft 202. The bottom of the gear 203 is movably connected to the rack 204 through tooth meshing. One end of the rack 204 is fixedly connected to the sliding seat 209. The rack 204 is slidably connected to the base 1. The clamping mechanism 2 also includes a torsion spring module 206 and a limiting hook 207. The limiting hook 207 is movably connected to the top of the base 1. The bottom of the limiting hook 207 is fixedly installed with the torsion spring module 206. The limiting hook 207 is elastically connected to the base 1 through the torsion spring module 206.

[0025] A gear 203 is mounted on the outside of the rotating shaft 202, and a rack 204 is mounted on the bottom of the gear 203. The teeth of the gear 203 and the rack 204 mesh with each other. Therefore, when the gear 203 rotates with the rotating shaft 202, the rack 204 will slide inside the base 1 as the gear 203 rotates, which will pry the limit hook 207 and make it rotate on the base 1, so that the movable rod 201 can be in contact with the top of the base 1. A torsion spring module 206 is mounted on the bottom of the limit hook 207. Therefore, when the limit hook 207 is pried, the torsion spring module 206 will store energy. After the movable rod 201 is in contact with the base 1, the limit hook 207 is released, and the limit hook 207 will be reset under the action of the elastic potential energy of the torsion spring module 206, thereby locking the limit rod 205.

[0026] In the example, the collision mechanism 4 includes a cylinder 401 and a collision module 402, wherein the cylinder 401 is fixedly mounted on the support frame on the top of the base 1, and the output end of the cylinder 401 is fixedly connected to the collision module 402. The calibration mechanism 5 also includes a sensor 502, wherein multiple sets of sensors 502 are fixedly mounted on the protrusion on the top of the positioning seat 501. The energy absorption box 3 includes a housing 301 and a reinforcing rib 302, wherein the housing 301 is located on the top of the positioning seat 501, and the reinforcing rib 302 is fixedly mounted inside the housing 301.

[0027] The collision mechanism 4 is activated, and the cylinder 401 is ventilated to adjust its internal pressure, causing the collision module 402 at its output end to descend rapidly, so that it can collide with the outer shell 301 of the energy absorption box 3. During the collision, since the top of the positioning seat 501 is equipped with a sensor 502, the force generated by the collision module 402 after colliding with the outer shell 301 will be detected by the sensor 502, so that the detection data of the energy absorption box 3 after the collision can be obtained.

[0028] The working principle of this utility model is as follows: When in use, first take out the energy-absorbing box 3 to be tested, and then place the energy-absorbing box 3 on the calibration mechanism 5. Because multiple sets of narrow upper and lower frame protrusions are installed on the positioning seat 501, the energy-absorbing box 3 will sit directly on the positioning seat 501 after being placed on the positioning seat 501. The reinforcing rib 302 will be limited between every two sets of protrusions under the action of the protrusions, so as to complete the rapid positioning and calibration of the energy-absorbing box 3.

[0029] The user can then manually move the limiting rod 205 to make the moving rod 201 rotate around the rotating shaft 202. A gear 203 is installed on the outside of the rotating shaft 202, and a rack 204 is installed at the bottom of the gear 203. The teeth of the gear 203 and the rack 204 mesh with each other. Therefore, when the gear 203 rotates with the rotating shaft 202, the rack 204 will slide inside the base 1 as the gear 203 rotates.

[0030] A sliding seat 209 is installed at one end of the rack 204, and a top block 208 is installed on the top of the sliding seat 209. When the sliding seat 209 moves together with the rack 204, the two sets of top blocks 208 will lift the bottom of the positioning seat 501, so that the positioning seat 501 and the energy absorption box 3 rise slightly on the base 1. Both ends of the top block 208 and the positioning seat 501 are provided with bevels, so the top block 208 can lift the positioning seat 501 smoothly after contacting it without interference.

[0031] At the same time, the movable rod 201 will also rotate 90 degrees. At this time, the limit hook 207 is first bent so that the limit hook 207 rotates on the base 1, so that the movable rod 201 can fit with the top of the base 1. The bottom of the limit hook 207 is equipped with a torsion spring module 206. Therefore, when the limit hook 207 is bent, the torsion spring module 206 will store energy. After the movable rod 201 fits with the base 1, the limit hook 207 is released. The limit hook 207 will reset under the action of the elastic potential energy of the torsion spring module 206, thereby locking the limit rod 205.

[0032] Both sets of movable rods 201 have protrusions installed on their bottom sides. After the movable rods 201 rotate 90 degrees, the protrusions will fit against the outer shell 301 of the energy absorption box 3. Therefore, under the action of the top block 208 and the protrusions of the movable rods 201, the energy absorption box 3 can be clamped to prevent the energy absorption box 3 from shifting during the detection process.

[0033] After clamping the energy-absorbing box 3, the collision mechanism 4 is activated. The cylinder 401 is ventilated to adjust its internal pressure, causing the collision module 402 at its output end to descend rapidly, so that it can collide with the outer shell 301 of the energy-absorbing box 3. During the collision, since the top of the positioning seat 501 is equipped with a sensor 502, the force generated by the collision module 402 after colliding with the outer shell 301 will be detected by the sensor 502, so that the detection data of the energy-absorbing box 3 after the collision can be obtained.

[0034] After the test is completed, the limit hook 207 can be turned to release the restriction on the limit rod 205. Then, the movable rod 201 can be lifted by the limit rod 205, so that the sliding seat 209 can be reset by the gear 203 and the rack 204, thereby releasing the restriction on the energy absorption box 3. The user can then remove the energy absorption box 3 from the positioning seat 501.

[0035] The above structure solves the technical problem that it is cumbersome to fix the energy-absorbing box 3 to the detection device with multiple sets of clamps before it can be detected. This clamping method is also time-consuming and cannot quickly calibrate the energy-absorbing box 3.

[0036] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, but such modifications, substitutions, and variations are protected by patent law as long as they fall within the scope of the claims of the present invention.

Claims

1. A frame rear crossbeam energy-absorbing box inspection tool with a quick calibration mark, comprising a base (1), characterized in that: The base (1) is equipped with a clamping mechanism (2) on top, a collision mechanism (4) is provided on top of the base (1), an energy-absorbing box (3) is provided between the collision mechanism (4) and the base (1), and a calibration mechanism (5) is provided on top of the base (1). The clamping mechanism (2) includes a movable rod (201), a limiting rod (205), a top block (208), and a sliding seat (209). Two sets of movable rods (201) are rotatably connected to the base (1), and the bottom of the movable rod (201) is provided with a protrusion. The limiting rod (205) is fixedly installed between one end of the two sets of movable rods (201). The sliding seat (209) is slidably connected to the inside of the base (1). The top of the sliding seat (209) is fixedly connected to the top block (208). The calibration mechanism (5) includes a positioning seat (501), which is slidably connected to the base (1). The positioning seat (501) is located on the top of the sliding seat (209). The top of the positioning seat (501) is provided with multiple sets of protrusions that are wider at the bottom and narrower at the top. The protrusions on the top of the positioning seat (501) serve to quickly calibrate the energy-absorbing box (3).

2. The frame rear crossbeam energy-absorbing box inspection tool with rapid calibration markings according to claim 1, characterized in that: The clamping mechanism (2) further includes a rotating shaft (202), a gear (203) and a rack (204), wherein the rotating shaft (202) is fixedly installed between two sets of movable rods (201), the gear (203) is fixedly installed outside the rotating shaft (202), the bottom of the gear (203) is movably connected to the rack (204) through tooth meshing, and one end of the rack (204) is fixedly connected to the sliding seat (209), and the rack (204) is slidably connected to the base (1).

3. The frame rear crossbeam energy-absorbing box inspection tool with rapid calibration markings according to claim 1, characterized in that: The clamping mechanism (2) further includes a torsion spring module (206) and a limiting hook (207), wherein the limiting hook (207) is movably connected to the top of the base (1), the bottom of the limiting hook (207) is fixedly installed with the torsion spring module (206), and the limiting hook (207) is elastically connected to the base (1) through the torsion spring module (206).

4. The frame rear crossbeam energy-absorbing box inspection tool with rapid calibration markings according to claim 1, characterized in that: The collision mechanism (4) includes a cylinder (401) and a collision module (402), wherein the cylinder (401) is fixedly installed on the support frame on the top of the base (1), and the output end of the cylinder (401) is fixedly connected to the collision module (402).

5. The frame rear crossbeam energy-absorbing box inspection fixture with rapid calibration markings according to claim 1, characterized in that: The calibration mechanism (5) also includes sensors (502), wherein multiple sets of sensors (502) are fixedly mounted on the protrusions on the top of the positioning seat (501).

6. The frame rear crossbeam energy-absorbing box inspection fixture with rapid calibration markings according to claim 1, characterized in that: The energy-absorbing box (3) includes a shell (301) and a reinforcing rib (302), wherein the shell (301) is located on top of the positioning seat (501), and the reinforcing rib (302) is fixedly installed inside the shell (301).

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