Assembly clamper for sandwich structure board lateral compression test

Abstract

The invention relates to an assembly clamper for sandwich structure board lateral compression test. In the prior art, when the large-size and non-symmetrical sandwich board is subjected to the lateral compression performance test, the centering of the compression center is difficult, and the deflection is high. A purpose of the present invention is to solve the problems in the prior art. According to the assembly clamper, an upper clamping head and a lower clamping head are arranged in an upper-lower manner, the deep groove of the upper clamping head and the U-shaped groove of the lower clamping head are oppositely arranged, four vertical position limiting plates are arranged between the upper clamping head and the lower clamping head in a rectangular manner, the upper ends of each vertical position limiting plate are positioned inside the deep groove, the lower ends of each vertical position limiting plate are positioned inside the U-shaped groove, the upper ends between the two transverse and parallel vertical position limiting plates are provided with a universal pad block and an adjustment pad block, the lower ends between the two transverse and parallel vertical position limiting plates are provided with a universal pad block and an adjustment pad block, the two universal pad blocks are oppositely arranged in an upper-lower manner, the two adjustment pad blocks are oppositely arranged in an upper-lower manner, two end plates are respectively arranged on the upper end and the lower end of the upper clamping head and the lower clamping head, and the upper cone column on the upper clamping head and the lower cone column on the lower clamping head are respectively embedded into the corresponding V-shaped grooves. The assembly clamper of the present invention is used for the sandwich structure board lateral compression test.

Description

technical field [0001] The invention relates to a test fixture for a sandwich structure plate, in particular to an assembly fixture for a lateral pressure test of a sandwich structure plate. Background technique [0002] Numerous factors need to be considered in the design of the lateral compression test fixture for sandwich structural panels, such as easy assembly with the testing machine and test piece, achieving moderately well-aligned loading, limiting out-of-plane displacement to meet compression standards, reasonable support constraints, Minimize the difficulty of fixture processing, improve fixture accuracy and service life, and test safety. [0003] In this field, there are many types of fixtures for flat side pressure tests. The assembly is generally to clamp the test piece at the upper and lower ends, adjust the front and rear positions of the test piece through pads, and connect it to the testing machine for compression testing. There are generally three kinds of...

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problem that the large-size (500mm×600mm) skin asymmetrical composite material sandwich panel is difficult to center the center of the pressure center when the lateral pressure performance test is performed, and the deflection is too large to maintain the compression loading condition, resulting in the instant test failure. In order to solve the problem of secondary damage of parts, an assembly fixture for lateral pressure test of sandwich structural panels is proposed

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