High-precision centering automobile anti-concave property testing equipment

Abstract

The invention relates to the technical field of automobile anti-concave property testing equipment, and in particular to a high-precision centering automobile anti-concave property testing , which comprises a stand, a mounting base is arranged at the upper end of the stand, and a linear displacement transmission mechanism is mounted on the mounting base; the driving end of the linear displacementtransmission mechanism is connected to an optical centering device, which is used for carrying out normal loading centering on automobile sheet metals; and the linear displacement transmission mechanism drives the optical centering device to linearly move. By arranging the optical centering device, the high-precision centering automobile anti-concave property disclosed by the invention can more easily control normal loading on freely curved surfaces, the testing precision is high, and the problem that low testing precision is caused because the normal direction of a load application directioncan only be observed by the naked eyes of a tester is avoided.

Description

technical field [0001] The invention relates to the technical field of vehicle dent resistance test equipment, in particular to a high-precision centerable vehicle dent resistance test equipment. Background technique [0002] With the development of the automobile industry, the quality requirements for body surface parts are increasing day by day. Automobile research and development personnel need to test the rigidity and anti-dent performance of the surface parts of the whole vehicle to ensure that the developed automobile surface parts meet the quality, and there will be no irregularities in the door due to long-term use and various contact or impact loads on the surface. equality issue. [0003] Testing the stiffness and dent resistance of surface parts requires the use of dent resistance test equipment. At present, there are common problems in the equipment used by everyone in the market: 1. The equipment is simple but the degree of freedom is not enough; 2. The equipm...

AI Technical Summary

Problems solved by technology

At present, there are common problems in the equipment used by everyone in the market: 1. The equipment is simple but the degree of freedom is not enough; 2. The equipment can meet the degree of freedom but does not have the ability to center the surface. The test accuracy is low; 3. The equipment is bulky, meets the above requirements, and has electrical control for the test process

However, due to the long step of the servo motor in the electrical control, it is impossible to control the loading mechanism to achieve loading and unloading with micron-level precision

Leading to the failure to meet the test accuracy of general tests

The general practice of this kind of equipment is to increase the load of the whole test and expand the degree of depression of the tested part to cover up the lack of accuracy.

This approach itself is controversial, because in the actual use of the car, the surface parts will not involve such a large load, and the test will deviate from the actual situation, and the test results will not be convincing enough; 4. It is difficult to control the realization of the free-form surface normal loading of

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