A subframe biaxial loading test fixture device
A test fixture and shaft loading technology, which is used in workpiece clamping devices, measuring devices, vehicle testing, etc., can solve problems such as easily damaged loading devices, test result errors, and structural instability, so as to reduce test errors and minimize errors. , the effect of improving the accuracy
Active Publication Date: 2016-03-16
CHERY AUTOMOBILE CO LTD
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Problems solved by technology
[0004] If the subframe directly loads the two hydraulic cylinders on the ball studs of the control arm during the test, such as figure 1 As shown, on the one hand, the whole structure is unstable, and the swing is very obvious, and it is easy to damage the loading device
On the other hand, due to the interaction between the two hydraulic cylinders, the loads in the two directions are coupled together and affect each other, the force attenuation is very serious, and the actual load cannot be applied to the ball stud of the control arm. The error of such test results is relatively large
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[0034] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0035] see figure 2 As shown, the embodiment of the present invention provides a sub-frame biaxial loading test fixture device, the fixture device at least includes: fixture main body 1, control arm ball stud 2, two-force rod 3, hydraulic cylinder 4 and other components; Specifically, as a preference, the clamp body 1 is composed of two rigid arms at right angles, the control arm ball stud 2 connected to the control arm 5 is installed at the right angle, and two two A force rod 3 is respectively equipped with a hydraulic cylinder 4 at the ends of the two rigid arms. In this way, a biaxial loading test fixture is formed to ensure that the two hydraulic cylinders are not affected by each other, and loads from two directions can be load...
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The invention discloses an auxiliary frame double-shaft testing clamp device and belongs to the field of automobile testing clamps. The clamp device at least comprises a clamp body, a control arm ball pin, two-force rods and hydraulic cylinders. The clamp body is formed by two rigid arms which form a right angle. The control arm ball pin is mounted at the right angle. Two two-force rods are mounted in the middle of each of the two rigid arms. One hydraulic cylinder is mounted at the end of each of the two rigid arms. The two hydraulic cylinders is allowed to act on the auxiliary frame at the same time, mutual influence of the two hydraulic cylinders during double-shaft loading is avoided, the two hydraulic cylinders are mutually independent during loading, precision of indoor tests of the whole auxiliary frame is increased, testing results is good, error is small, and loss of the force transmitted by the hydraulic cylinder to the auxiliary frame is minimized.
Description
technical field [0001] The invention relates to the field of automobile test fixtures, in particular to a biaxial loading test fixture device for an auxiliary frame. Background technique [0002] A hydraulic cylinder is a force-loading device that is used in many industries in aerospace, national defense and national economy. It has a very wide range of applications in the automotive field, mainly including structural calibration, chassis and body structure test verification, etc., and can provide constant amplitude and random spectral loading. Ordinary loading tests are generally, the hydraulic cylinder loading device works independently, and there is no mutual influence between different hydraulic cylinders, such as torsion beam loading test, stabilizer bar loading test, four-column loading test, etc. The hydraulic cylinders are independent of each other Yes, there will be no coupling relationship between hydraulic cylinders. For most simplified tests, this kind of loadin...
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IPC IPC(8): G01M17/00G01M13/00B25B11/00
CPCB25B11/00
Inventor 程凯
Owner CHERY AUTOMOBILE CO LTD