Axial compression test clamp

Abstract

The invention relates to the field of wallboard structure mechanical property testing equipment, in particular to an axial compression test fixture which comprises a horizontal supporting base, a left stand column, a right stand column and a test piece clamping assembly. The left stand column and the right stand column are installed on the two sides of the horizontal supporting base, and the test piece clamping assembly is connected with the left stand column and the right stand column through bolts. The test piece clamping assembly comprises a left front side edge supporting clamping piece and a left rear side edge supporting clamping piece which are installed on the left stand column, a right front side edge supporting clamping piece and a right rear side edge supporting clamping piece which are installed on the right stand column, a horizontal supporting clamping piece I, a horizontal supporting clamping piece II, a horizontal supporting clamping piece III, a horizontal supporting clamping piece IV and an upper clamping plate. The clamping tool can be directly clamped on a universal testing machine, sliding and loosening between the clamping tool and the testing machine can be prevented, a large axial compression test load can be borne, a test piece can be kept in a pure simple supporting state through the stand columns and the clamping pieces, axial compression performance testing of test pieces of different sizes can be met, and the application range of the clamp is widened.

Description

technical field [0001] The invention relates to the field of testing equipment for mechanical properties of wall plate structures, in particular to an axial pressure test fixture. Background technique [0002] Testing the mechanical properties of structural parts is the most critical step in structural design and strength verification, but it is still a challenging problem to test the mechanical properties of large and medium-sized panel structures such as aircraft wings. The structure of the wing panel is complex. In the mechanical performance test of the corresponding test piece, there are very few axial compression fixtures that can be directly clamped on the universal testing machine. Due to the large size of the test piece of the wall plate structure, in the existing technology, the test piece or the clamping tool is often loosened, bent, and slipped due to unstable clamping, resulting in large errors in test results or It cannot well meet the actual loading conditions...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems of loose clamping of the fixture and instability of the test piece during the axial compression performance test of the wall plate structure, the present invention provides an axial compression fixture that is easy to clamp, convenient to operate, and widely applicable, and solves the problem of simply supporting the four sides of the test piece and the testing problem of test pieces whose front and rear stiffness centers are not in the geometric center

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