CN205049353U - Bump test of white automobile body side implements device - Google Patents

Abstract

The utility model relates to a device for implementing a collision test on the side of a white body, which comprises a test bench and a suspended pendulum. The word beam is fixed on the test bench through the pressure plate, the fastening bolt of the pressure plate and the T-shaped slot arranged on the test bench; the suspended pendulum includes a swing rod, and the upper end of the swing rod is fixed or hinged on the rotating shaft , the lower end of the pendulum is equipped with a collision head mounting plate and a collision head, and the collision head is located at the position where the side of the installed body-in-white needs to be collided. When a collision occurs, lift the pendulum to the preset collision angle, and release it freely to complete the side impact on the body-in-white; the test has strong operability, good repeatability, high accuracy of test data, and can obtain the side impact performance of the body-in-white.

Description

A crash test implementing device for the side of a body in white

technical field

The utility model relates to an automobile collision test device, in particular to a collision test implementation device for the side of a body in white.

Background technique

Automobile side collision regulations are one of the main collision regulations of automobiles, which are involved in the mandatory automobile regulations and star rating standards of various countries. According to statistics, about 1/3 of all kinds of traffic accidents in our country are side collisions. The fatality rate of side collision is second only to frontal collision, while the injury rate ranks first. On July 1, 2006, my country officially implemented GB20071-2006 "Occupant Protection in Side Collision of Vehicles". At the same time, in C-NAP, vehicle side collision is also used as one of the main scoring bases.

In a side collision of a car, most of the collision energy is transmitted and consumed through structural parts on the body-in-white, such as B-pillars, door sills, front and rear floors, floor beams, roof beams, etc. on the body-in-white. Therefore, optimizing the design of key components such as B-pillars and thresholds on the body-in-white is the main means to improve the side impact performance of the vehicle. Since the side impact performance of the body-in-white can largely reflect the side-impact performance of the vehicle, obtaining the crash performance of the body-in-white in the development stage of the body-in-white is helpful for the evaluation of the side impact safety performance of the vehicle in the later stage, so that in the early stage of design It can be optimized and improved, and the development time can be greatly saved.

A literature search of the existing related technologies found that CN102455250A discloses "automobile body-in-white bending stiffness testing system and method thereof", which is a constraint subsystem and a loading subsystem for testing the bending stiffness of automobile body-in-white and the corresponding testing method. CN201010517239.8 discloses "automobile body-in-white torsional rigidity testing system and method thereof", which introduces a constraint subsystem, a loading subsystem and a corresponding testing method for testing the torsional stiffness of an automobile body-in-white. CN102944431A discloses a "body-in-white torsional fatigue testing system and method thereof", which mainly introduces a constraint subsystem, a loading subsystem and a corresponding testing method for testing torsional fatigue of a body-in-white. CN103868697A discloses "Constraint Device for Bending and Torsional Rigidity Test of Passenger Car Body-in-White", which mainly introduces a restraining device for testing the bending-torsional rigidity of passenger car body-in-white. The influence of the bench on the measured body stiffness value is eliminated, and the adjustment of the body attitude is easy to realize. The above test methods for body-in-white are all aimed at the static stiffness performance of body-in-white. At present, there is no test method and device specially used for testing the side impact performance of body-in-white. Therefore, it is impossible to complete the evaluation of side impact performance of body-in-white in the initial stage of body-in-white design. .

Contents of the invention

The purpose of the utility model is to provide a body-in-white side collision test implementing device, so as to realize the evaluation of the side collision performance of the body-in-white.

The technical scheme adopted for the purpose of realizing the utility model is such that a kind of impact test implementation device of the side of the body in white includes a test stand and a suspended pendulum, and on the test stand there is a The bottom of the vehicle body is connected with a fixed I-beam, and the I-beam is fixed on the test bench through the pressure plate, the fastening bolt of the pressure plate and the T-shaped slot arranged on the test bench; the suspended pendulum includes a swing rod, and the The upper end of the swing rod is fixed or hinged on the rotating shaft, and the lower end of the swing rod is equipped with a collision head mounting plate and a collision head, and the collision head is located at the position where the installed body-in-white needs to collide.

Further, the rotating shaft is an adjustable structure up and down, so that the position of the collision head is located at the position where the side of the installed body-in-white needs to be collided.

Further, the pressure plate has a strip hole, and by adjusting the locking position of the fastening bolt of the pressure plate in the strip hole, the installation position of the I-beam can be adjusted front and rear, left and right on the test bench, and the body-in-white is completed. The position of the collision corresponds to the position of the collision head.

The above-mentioned rotating shaft meshes with the shaft gear of the motor through the movable gear along its axial direction, drives the pendulum through the driving rotating shaft of the motor to raise the collision head to the required angle, and then removes the meshing between the gears, so that the collision head falls freely to complete the dialogue The impact on the body surface.

Similarly, the rotating shaft is connected to the motor through the cam mechanism, and the motor drives the rotating shaft through the cam mechanism to drive the pendulum to lift the collision head to a required angle, and then the collision head falls freely to complete the impact on the body-in-white.

The collision head mounting plate is connected to the collision head through a set of support tubes of equal height.

A counterweight plate is installed on the lower end of the swing rod, and the counterweight range of the counterweight plate is 0-760kg.

The swinging angle range of the pendulum is 0-60°.

The longitudinal symmetry lines of the collision head and the swing rod are in the same plane.

The utility model has substantive characteristics and remarkable technical progress due to the above-mentioned structure. That is, by rotating the rotating shaft to drive the pendulum or directly driving the pendulum to rotate around the angle of the rotating shaft to move the collision head to a suitable collision position; to lift the pendulum to the preset collision angle and release it freely to complete the side collision of the white body; the test can It has strong operability, good repeatability, high accuracy of test data, and can obtain the side impact performance of the body-in-white. The motor is used to drive the rotating shaft to rotate, which is more labor-saving and controllable.

Description of drawings

The above-mentioned structure of the utility model can be further illustrated by the non-limiting embodiments provided by the accompanying drawings.

Fig. 1 is a schematic diagram of the collision of the body-in-white of the present invention.

Figure 2 is a schematic diagram of the installation and fixation of the body in white.

Fig. 3 is a schematic diagram of a pendulum equipped with a collision head and a counterweight plate.

In the figure: 1. Test bench; 2. Fastening bolts of the pressure plate; 3. Pressure plate; 4. I-shaped beam; 5. Fastening bolts of the collision head mounting plate; 6. The collision head mounting plate; Collision head; 9, counterweight plate fastening bolt; 10, counterweight plate; 11, swing rod; 12, rotating shaft; 13, motor; 14, body-in-white fastening screw; 15, body-in-white.

detailed description

The utility model will be further described below in conjunction with the accompanying drawings and specific embodiments of the collision test of the side of the body-in-white;

Referring to the accompanying drawings, the body-in-white side impact test device in the figure includes a test bench 1 and a suspended pendulum, and an I-beam 4 for connecting and fixing the bottom of the body-in-white is arranged on the test bench. The beam 4 is fixed on the test bench 1 through the pressure plate 3, the fastening bolt 2 of the pressure plate and the T-shaped groove arranged on the test bench; the suspended pendulum includes a swing rod 11, and the upper end of the swing rod 11 is fixed on On the rotating shaft 12, the lower end of the swing rod 11 is equipped with a collision head mounting plate 6 and a collision head 8, and the collision head is located at a position where the installed side of the body-in-white needs to be collided.

The rotating shaft 12 is an up-and-down position-adjustable structure, which is conducive to adjusting the position of the collision head to the position where the side of the installed body-in-white needs to be collided. The pressure plate 3 has a strip hole, and by adjusting the locking position of the pressure plate fastening bolt 2 in the strip hole, the installation position of the I-beam 4 can be adjusted front, rear, left and right on the test bench 1, and the requirements for the side of the body in white can be completed. The location of the collision corresponds to the location of the collision head. There are 12-24 pressing plates. The number of fastening bolts of the pressure plate is 12-24

The I-beam 4 has a strip-shaped hole, and is connected with the bottom of the body-in-white through the fastening bolts 14 of the body-in-white to realize the installation and fixation of the body-in-white. The quantity of I-beam 4 is 2-4.

A non-limiting example is: the rotating shaft 12 meshes with the shaft gear of the motor through a gear movable along its axial direction, and the driving rotating shaft 12 of the motor drives the pendulum 11 to lift the collision head 8 to a required angle, and then removes it The meshing between the gears makes the collision head 8 fall freely to complete the collision on the surface of the body in white.

Another non-limiting embodiment is: the rotating shaft 12 is connected with the motor through a cam mechanism, and the motor drives the rotating shaft 12 through the cam mechanism to drive the pendulum 11 to lift the collision head 8 to a required angle, and then make the collision head 8 fall freely to complete the dialogue The impact on the body surface.

The collision head mounting plate 6 is connected to the collision head 8 through a set of support tubes 7 of equal height. There are 4-12 support pipes 7 in quantity. In the embodiment, the two ends of the support tube 7 are respectively welded and fixed to the collision head mounting plate 6 and the collision head 8 to ensure that the collision head mounting plate 6, the support tube 7 and the collision head 8 will not be deformed after collision.

In an embodiment, a weight plate 10 is installed at the lower end of the swing rod 11, and the weight range of the weight plate 10 is 0-760kg.

The swing angle range of the pendulum 11 is 0-60°.

The longitudinal symmetry lines of the collision head 8 and the swing rod 11 are in the same plane.

During the test, the body-in-white 15 used for the test does not have four doors, two covers, and front and rear windshield glass. According to the measurement of the floor size of the body-in-white and the positions of the longitudinal beams and reinforcing beams of the body-in-white floor, a total of 18 installation spaces of the body-in-white floor are calculated. The position of the space is to arrange I-beams at the bottom of the body-in-white. The number of I-beams is 4. Adjust the position of the body-in-white so that the installation position of the body-in-white is aligned with the strip holes of the I-beams. Mounting holes are opened at the installation position, and the body-in-white fastening screws 14 are used to pass through the mounting holes of the front and rear floors of the body-in-white and the strip holes of the I-beam for fixing. At the preset collision position of the test bench, adjust the position of the I-beam, so that the T-shaped slot of the test bench can easily install the pressure plate fastening bolts, and arrange the pressure plates on the lower mounting surfaces of the four I-beams. The total number of pressure plates is There are 24 fastening bolts of the pressure plate. The bolt heads of the fastening bolts of the pressure plate are inserted into the T-shaped groove of the test bench, and pass through the strip holes of the pressure plate to realize the pressing and fixing of the pressure plate and the convex edge of the bottom of the I-beam. There are 24 fastening bolts of the pressure plate in total. The up and down, left and right, and front and rear positions of the pendulum equipped with the collision head and the counterweight plate make the collision head move to the preset collision position, and use the motor to drive the rotation shaft to rotate, so that the pendulum is lifted by 45°, and the dialogue is completed after free release For the side collision of the vehicle body, in this embodiment, the number of support pipes is 6, the number of fastening bolts of the collision head mounting plate is 4, the weight of the counterweight plate is 380kg, and the number of fastening bolts of the counterweight is 16.

Based on the above-mentioned embodiments, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Claims (9)

1. the impact test device for carrying out said of a body in white side, it is characterized in that: comprise test-bed (1) and suspension type pendulum, described test-bed has for body in white bottom the I-beam (4) that is connected and fixed, described I-beam (4) is fixed on test-bed (1) by pressing plate (3), pressing plate fastening bolt (2) and the T-slot be arranged on test-bed; Described suspension type pendulum comprises fork (11), the upper end of described fork (11) is fixed or is hinged on turning axle (12), the lower end of fork (11) is provided with impact head installing plate (6) and impact head (8), and described impact head is positioned at the position that the body in white side after installation needs collision.

2. the impact test device for carrying out said of a kind of body in white side according to claim 1, it is characterized in that: described turning axle (12) is upper-lower position adjustable structure, the body in white side after making the position of impact head be positioned at installation needs the position of collision.

3. the impact test device for carrying out said of a kind of body in white side according to claim 1, it is characterized in that: (3) have bar hole with described pressing plate, by regulating pressing plate fastening bolt (2) latched position in bar hole, realize the installation site at the upper front and back of test-bed (1), left and right adjusting I-beam (4), the position making body in white side to be collided is corresponding with the position of impact head, completes the position adjustments of body in white.

4. the impact test device for carrying out said of a kind of body in white side according to claim 1 and 2, it is characterized in that: turning axle (12) is by engaging along its axially movable gear with the shaft gear of motor, drive fork (11) that impact head (8) is promoted required angle by the driving turning axle (12) of motor, then remove the engagement between gear, make impact head (8) freely fall shock to body in white then face.

5. the impact test device for carrying out said of a kind of body in white side according to claim 1 and 2, it is characterized in that: turning axle (12) is connected with motor by cam mechanism, motor drives turning axle (12) to drive fork (11) that impact head (8) is promoted required angle by cam mechanism, then makes impact head (8) freely fall shock to body in white then face.

6. the impact test device for carrying out said of a kind of body in white side according to claim 1, is characterized in that: described impact head installing plate (6) is connected with impact head (8) by one group of contour stay pipe (7).

7. the impact test device for carrying out said of a kind of body in white side according to claim 1, it is characterized in that: described fork (11) lower end is provided with Weight plate (10), the counterweight scope of described Weight plate (10) is 0-760kg.

8. the impact test device for carrying out said of a kind of body in white side according to claim 1, is characterized in that: the angular range that described fork (11) swings is 0-60 °.

9. the impact test device for carrying out said of a kind of body in white side according to claim 1, is characterized in that: longitudinal line of symmetry of impact head (8) and fork (11) is in same plane.