Automobile anti-collision beam bearing performance detection equipment

Abstract

The utility model provides an automobile anti-collision beam bearing performance detection device, which relates to the technical field of automobile production and comprises a bottom frame, a pressing assembly is mounted on the upper side of the bottom frame and comprises a supporting frame welded above the bottom frame, a stress keel is mounted on the inner side of the top end of the supporting frame, and the stress keel is connected with the pressing assembly. A limiting plate is connected to the upper side of the supporting frame through screws, a buckling block is installed on the lower side of the limiting plate, a hydraulic pump rod is welded to the lower side of the buckling block, and a lower pressure sensor is installed at the tail end of the hydraulic pump rod; according to the utility model, sliding adjustment can be carried out along the stress keel through the pressing assembly and the buckling block, so that different positions of the automobile anti-collision beam can be measured, when the hydraulic pump rod pushes the lower pressure sensor to move downwards, the lower pressure sensor can measure the pressure between the hydraulic pump rod and the automobile anti-collision beam, and through the structure, the measurement accuracy is improved. In cooperation with a stress pressure sensor, the stress threshold value and the stress change between the automobile anti-collision beams can be measured.

Description

Technical Field

[0001] This utility model relates to the field of automobile manufacturing technology, and in particular to a device for testing the load-bearing performance of automobile anti-collision beams. Background Technology

[0002] A car crash beam is a device used to absorb collision energy during a vehicle collision. It typically consists of a main beam, an energy-absorbing box, and a mounting plate that connects to the car. Its main function is to effectively absorb collision energy during low-speed collisions, minimizing the damage to the longitudinal beams of the vehicle body and thus reducing maintenance costs.

[0003] A search revealed that the document with publication number "CN222505790U" mentions that "this utility model relates to the field of automotive anti-collision beam bearing technology, and discloses an automotive anti-collision beam load-bearing performance testing device, including a base, a bidirectional motor fixedly connected inside the base, a first threaded rod fixedly connected to the output end of each bidirectional motor, the outer sides of the two first threaded rods rotatably connected to the inside of the base, the outer sides of the two first threaded rods being connected to a movable seat via threaded transmission, the outer sides of the two movable seats being slidably connected to the inside of the base, a fixed seat fixedly connected to the top of each of the two movable seats, and the same anti-collision beam body movably connected to the top of the two fixed seats, and four screws symmetrically distributed on the left and right sides being threadedly connected to the bottom of the anti-collision beam body." In use, this automotive anti-collision beam load-bearing performance testing device has advantages such as easy adjustment, solving the problem of limited applicability when testing anti-collision beams of different lengths due to the lack of adjustment function.

[0004] However, current automotive crash beams are mostly tested in two ways: one is to directly simulate a car collision, and the other is to compress the crash beam and measure its deformation. However, compressing the crash beam alone does not provide sufficient data due to changes in stress and deformation, which can easily lead to inaccurate data.

[0005] Therefore, we provide a test device for the load-bearing performance of automotive anti-collision beams to solve the above problems. Utility Model Content

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A vehicle anti-collision beam load-bearing performance testing device includes a chassis. A force measuring component is installed on the inner side of the chassis. The force measuring component includes a limiting groove located at the center of the inner side of the chassis. Laser rangefinders are installed on the inner side of the limiting groove. Force pressure sensors are installed at both the left and right ends of the upper side of the limiting groove. Protective rubber pads are connected to the surface of the force pressure sensors. A lateral offset rangefinder is installed on the outer side of the force pressure sensors. A downward pressing component is installed on the upper side of the chassis. The downward pressing component includes a support frame welded to the upper part of the chassis. A load-bearing keel is installed on the inner side of the top of the support frame. A limiting plate is screwed to the upper side of the support frame. A buckle is installed on the lower side of the limiting plate. A hydraulic pump rod is welded to the lower side of the buckle. A downward pressure sensor is installed at the end of the hydraulic pump rod.

[0008] Optionally, the laser rangefinder and the limiting slide are connected by a slot, and the laser rangefinder is arranged in six groups at equal distances.

[0009] Optionally, the force pressure sensor is connected to the base frame by a slot, the force pressure sensor is symmetrically arranged on the left and right sides, and the force pressure sensor is a strain gauge type pressure sensor.

[0010] Optionally, the protective pad and the pressure sensor are bonded together, and the protective pad and the pressure sensor are tightly fitted together. The protective pad has a mounting hole in the middle.

[0011] Optionally, the lateral offset rangefinder and the force pressure sensor are welded together, and the lateral offset rangefinder is C-shaped.

[0012] Optionally, the load-bearing keel and the support frame are connected by a slot, the load-bearing keel is limited by a limiting plate, the limiting plate and the fastener are connected by a slot, and the load-bearing keel is inverted T-shaped.

[0013] Optionally, the pressure sensor is welded to the hydraulic pump rod, and the pressure sensor is a piezoelectric pressure sensor.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model uses a force measurement component to distribute multiple sets of laser rangefinders along a limiting groove. Each set of laser rangefinders measures the distance between the car crash beam and the laser rangefinder. When the car crash beam deforms due to compression, each set of laser rangefinders monitors the downward deformation distance in real time, thereby measuring the deformation amplitude at each position. The car crash beam is placed on the protective rubber pad on the force pressure sensor. When the car crash beam is subjected to force, the downward compressive force generated is transmitted to the force pressure sensor. Data is collected on the change of force from the beginning of the compression to the deformation. When the car crash beam is subjected to downward pressure, the lateral offset rangefinder measures the lateral deformation offset distance of the car crash beam, thereby determining the degree of lateral deformation of the crash beam under different forces.

[0016] 2. This utility model uses a pressing component, and the buckle can slide and adjust along the force-bearing keel, thereby measuring different positions of the car anti-collision beam. When the hydraulic pump rod pushes the pressure sensor downward, the pressure sensor will measure the pressure between the hydraulic pump rod and the car anti-collision beam. Through this structure, in conjunction with the force pressure sensor, the force threshold and force change between the car anti-collision beams can be measured. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model;

[0018] Figure 2 This is a top view of the overall structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the overall disassembled structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the cooperative structure of the hydraulic pump rod and the lower pressure sensor of this utility model.

[0021] The following components are labeled in the diagram: 1. Base frame; 2. Force measuring component; 201. Limiting slide; 202. Laser rangefinder; 203. Force pressure sensor; 204. Protective rubber pad; 205. Lateral offset rangefinder; 3. Downward pressure component; 301. Support frame; 302. Force-bearing keel; 303. Limiting plate; 304. Fastener block; 305. Hydraulic pump rod; 306. Downward pressure sensor. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 As shown, this utility model provides a technical solution: a vehicle anti-collision beam load-bearing performance testing device, including a base frame 1, a force measuring component 2 disposed on the inner side of the base frame 1, the force measuring component 2 including a limiting slide groove 201 disposed at the center of the inner side of the base frame 1, a laser rangefinder 202 installed on the inner side of the limiting slide groove 201, and a force pressure sensor 203 disposed at both the left and right ends of the upper side of the limiting slide groove 201, the surface of the force pressure sensor 203 being connected to a protective rubber pad 204, the force pressure... A lateral offset rangefinder 205 is provided on the outside of the force sensor 203. A pressing component 3 is installed on the upper side of the base frame 1. The pressing component 3 includes a support frame 301 welded to the top of the base frame 1. A force-bearing keel 302 is installed on the inner side of the top of the support frame 301. A limit plate 303 is screwed to the upper side of the support frame 301. A buckle 304 is installed on the lower side of the limit plate 303. A hydraulic pump rod 305 is welded to the lower side of the buckle 304. A downward pressure sensor 306 is installed at the end of the hydraulic pump rod 305.

[0024] Furthermore, the lateral offset rangefinder 205 and the force pressure sensor 203 are welded together. The lateral offset rangefinder 205 is C-shaped. When the car anti-collision beam is subjected to downward pressure, the lateral offset rangefinder 205 will measure the lateral deformation offset distance of the car anti-collision beam, thereby obtaining the degree of lateral deformation of the anti-collision beam under different forces.

[0025] Furthermore, the force pressure sensor 203 is connected to the base frame 1 by a slot. The force pressure sensor 203 is symmetrically arranged on the left and right sides. The force pressure sensor 203 is a strain gauge type pressure sensor. When needed, the car anti-collision beam is placed on the protective rubber pad 204 on the force pressure sensor 203. When the car anti-collision beam is subjected to force, the downward squeezing force generated will be transmitted to the force pressure sensor 203. Data is collected on the change of force from the beginning of the force application to the deformation after squeezing.

[0026] Furthermore, the protective pad 204 and the force pressure sensor 203 are bonded together, and the protective pad 204 and the force pressure sensor 203 are tightly fitted together. The protective pad 204 has a mounting hole in the middle. When needed, the car anti-collision beam is fixed to the protective pad 204 with bolts to prevent positional displacement after being subjected to downward pressure, thereby ensuring the accuracy of the measurement data. The non-fixed force pressure sensor 203 can move freely when subjected to force exceeding a certain limit, thereby protecting the safety of the force pressure sensor 203.

[0027] Furthermore, the load-bearing keel 302 and the support frame 301 are connected by a slot. The load-bearing keel 302 is limited by the limiting plate 303. The limiting plate 303 and the fastener 304 are connected by a slot. The load-bearing keel 302 is inverted T-shaped. When needed, the fastener 304 can slide and adjust along the load-bearing keel 302, so that different positions of the car anti-collision beam can be measured.

[0028] Furthermore, the lower pressure sensor 306 is welded to the hydraulic pump rod 305. The lower pressure sensor 306 is a piezoelectric pressure sensor. When the hydraulic pump rod 305 pushes the lower pressure sensor 306 downward, the lower pressure sensor 306 will measure the pressure between the hydraulic pump rod 305 and the car anti-collision beam. Through this structure, in conjunction with the force pressure sensor 203, the force threshold and force change between the car anti-collision beams can be measured.

[0029] Furthermore, the laser rangefinder 202 is connected to the limiting slide 201 by a slot. The laser rangefinder 202 is arranged in six groups at equal distances. When needed, multiple groups of laser rangefinders 202 are placed along the limiting slide 201. At this time, each group of laser rangefinders 202 will measure the distance between the car anti-collision beam and the laser rangefinder 202. When the car anti-collision beam is deformed due to compression, each group of laser rangefinders 202 will monitor the downward deformation distance in real time, thereby measuring the deformation amplitude at each position.

[0030] Working principle: When needed, first place the base frame 1 in the required position, then fix the two mounting ends of the car anti-collision beam to the protective rubber pad 204. Next, according to the required force measurement location, adjust the position of the laser rangefinder 202 along the limiting slide groove 201, and adjust the position of the hydraulic pump rod 305 along the force-bearing keel 302 via the fastener 304. Once ready, the hydraulic pump rod 305 presses downwards against the car anti-collision beam, and the downward pressure sensor 306 at the end of the hydraulic pump rod 305 senses the hydraulic pump... The downward compressive force of the pole 305 and the car anti-collision beam is detected by the force pressure sensor 203. As the car anti-collision beam is compressed downward, the force pressure sensor 203 will sense the change in force on the car anti-collision beam. After the car anti-collision beam is subjected to force, it will deform. The laser rangefinder 202 will sense the change in downward pressure on the car anti-collision beam. At the same time, the lateral offset rangefinder 205 will measure the lateral change of the car anti-collision beam. All the data information will be transmitted to the external computer data terminal. This completes the use of a car anti-collision beam load-bearing performance testing device.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A test device for the load-bearing performance of automotive anti-collision beams, comprising a base frame (1), characterized in that: A force measuring component (2) is provided on the inner side of the base frame (1). The force measuring component (2) includes a limiting slide groove (201) located at the center of the inner side of the base frame (1). A laser rangefinder (202) is installed on the inner side of the limiting slide groove (201). Force pressure sensors (203) are provided at both the left and right ends of the upper side of the limiting slide groove (201). A protective rubber pad (204) is connected to the surface of the force pressure sensor (203). A lateral offset rangefinder (205) is provided on the outer side of the force pressure sensor (203). A pressing assembly (3) is installed on the upper side of the base frame (1). The pressing assembly (3) includes a support frame (301) welded above the base frame (1). A load-bearing keel (302) is installed on the inner side of the top of the support frame (301). A limit plate (303) is screwed to the upper side of the support frame (301). A buckle (304) is installed on the lower side of the limit plate (303). A hydraulic pump rod (305) is welded to the lower side of the buckle (304). A pressure sensor (306) is installed at the end of the hydraulic pump rod (305).

2. The vehicle anti-collision beam load-bearing performance testing equipment according to claim 1, characterized in that, The laser rangefinder (202) is connected to the limiting slide (201) by a slot, and the laser rangefinder (202) is arranged in six groups at equal distances.

3. The vehicle anti-collision beam load-bearing performance testing equipment according to claim 1, characterized in that, The force pressure sensor (203) is connected to the base frame (1) by a slot. The force pressure sensor (203) is symmetrically arranged on the left and right sides. The force pressure sensor (203) is a strain gauge pressure sensor.

4. The vehicle anti-collision beam load-bearing performance testing equipment according to claim 1, characterized in that, The protective pad (204) and the pressure sensor (203) are bonded together, and the protective pad (204) and the pressure sensor (203) are tightly fitted together. An installation hole is provided in the middle of the protective pad (204).

5. The vehicle anti-collision beam load-bearing performance testing equipment according to claim 1, characterized in that, The lateral offset rangefinder (205) and the force pressure sensor (203) are welded together, and the lateral offset rangefinder (205) is C-shaped.

6. The vehicle anti-collision beam load-bearing performance testing equipment according to claim 1, characterized in that, The load-bearing keel (302) and the support frame (301) are connected by a slot. The load-bearing keel (302) is limited by a limiting plate (303). The limiting plate (303) and the fastener (304) are connected by a slot. The load-bearing keel (302) is inverted T-shaped.

7. The vehicle anti-collision beam load-bearing performance testing equipment according to claim 1, characterized in that, The lower pressure sensor (306) is welded to the hydraulic pump rod (305), and the lower pressure sensor (306) is a piezoelectric pressure sensor.

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