A fixture device for biaxial loading test of sub-frame

Abstract

The invention discloses an auxiliary vehicle frame biaxial loading test fixture device which comprises a fixture body. A U-shaped block is internally provided with two clamping blocks, sliding blocksare fixedly connected to the sides, close to the U-shaped block, of the two clamping blocks, and sliding grooves matched with the two sliding blocks are formed in the U-shaped block. A moving mechanism for simultaneously driving the two clamping blocks is arranged on the U-shaped block, two L-shaped blocks are symmetrical arranged on the front and rear sides of the U-shaped block, and the two L-shaped blocks are fixedly connected with the U-shaped block. A first threaded hole is formed in one of the L-shaped blocks, and a second threaded hole which corresponds to the position of the first threaded hole and has the same size as the first threaded hole is formed in the other one of the L-shaped blocks. The first thread hole is internally provided with a matching bolt, and one end of the boltpenetrates through the second threaded hole and extends to the outside. According to the auxiliary vehicle frame biaxial loading test fixture device, the structure is reasonable, no ball head pin needs to additionally install when clamping is carried out, so that clamping is convenient, and clamping is carried out in the four directions, high stability is achieved.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a fixture device for a biaxial loading test of an auxiliary frame. Background technique [0002] The subframe can be regarded as the skeleton of the front and rear axles, and is an integral part of the front and rear axles. The sub-frame is not a complete frame, but a bracket that supports the front and rear axles and suspension, so that the axle and suspension pass through it and then connect with the "positive frame", which is customarily called "sub-frame". The subframe needs to be tested for performance after production, and special fixtures are required for the test. [0003] After searching, the Chinese patent authorization number CN103612226B discloses a fixture device, including: a fixture body, a control arm ball stud, a two-force rod, and a hydraulic cylinder; the fixture body is composed of two rigid arms at right angles, and the right angle A control arm ball st...

AI Technical Summary

Problems solved by technology

[0004] The existing fixture device has the following disadvantages: the existing fixture needs an additional fixed ball stud for clamping, which is troublesome during the test and requires complicated disassembly and installation; at the same time, the additional fixed ball stud needs to consider the stability of the fixation, There may be deviation and cut during force transmission, and the ball stud pin is fixed to the sub-frame through bolts, which may shake in the direction perpendicular to the bolts, resulting in uncertainty of test results and resulting in inaccurate measurement of product quality

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