Opening-closing member rigidity test loading device

Abstract

The invention discloses an opening-closing member rigidity test loading device comprising a base (1), a sliding seat (2) slidably arranged on the base (1), a sliding block (3) slidably arranged on the sliding seat (2), a first worm and gear set (4) fixedly connected to the sliding block (3), a fixing support (5) fixedly connected to the first worm and gear set (4), a second worm and gear set (6) fixedly connected to the fixing support (5), a scissor-like jack (7) fixedly connected with the second worm and gear set (6), and a force sensor (8) and a loading head (9) which are arranged on the scissor-like jack (7). By employing the two worm and gear sets in the invention, the loading direction can be adjusted in multiple degrees of freedom, the loading position can be adjusted via the screw transmission of adjusting screw rods, and both the two transmission mechanisms can be self-locked. The loading device has a compact structure, is convenient to adjust and install, and occupies a small space.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a loading device for a stiffness test of an opening and closing member. Background technique [0002] The opening and closing parts are the key parts of the car body. Its flexibility, firmness, and sealing have a great influence on the use of automotive products, and these properties are related to its stiffness. Accurately testing the stiffness data of opening and closing parts at various stages in the body development process is of great significance for guiding and verifying the design and manufacturing process. The shape of the opening and closing parts is quite complicated, and it is difficult to adjust the loading device to load in the specified direction and position; in addition, there are many points to be measured and the workload is heavy. [0003] At present, loading equipment such as hydraulic cylinders, cylinders, and jacks are widely used, but they are not eas...

AI Technical Summary

Problems solved by technology

The shape of the opening and closing parts is quite complicated, and it is difficult to adjust the loading device to load in the specified direction and position; in addition, there are many points to be measured and the workload is heavy

[0003] At present, there are many loading equipment such as hydraulic cylinders, cylinders, jacks, etc., which are not easy to install and difficult to adjust the loading position and angle.

For example, in the existing loading device used to carry out the stiffness test of the opening and closing parts of passenger cars, the loading head is loaded by a scissor jack, but it can only rotate in one direction around the rotary axis, and it cannot be self-locked after adjustment, and it needs to be tightened. Lock bolts, so installation and adjustment are inconvenient

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