Clamp for detection of damp heat resistance of metal plate

Abstract

The invention discloses a clamp for detection of damp heat resistance of a metal plate. The clamp comprises a pedestal; a machine frame is arranged at the top end of the pedestal; an operating table is arranged at the top end of the machine frame; and a rectangular through groove is formed at the top end of the operating table. A transmission rod is arranged at the bottom end of a transmission roll ball; during test, the air in an air cylinder pushes a piston rod to move towards the outer side, the piston rod pushes the transmission rod to rotate along a rotating shaft of a side plate, the transmission roll ball at the tail end of the transmission rod pushes one side of the inner wall of roll ball bases, the two roll ball bases move toward each other in opposite directions, the roll basesdrive a sliding base to move toward each other in opposite directions, the plate is subjected to extrusion test, the drawing force and the compression force of the air cylinder during test can be enlarged according to the lever principle, and the problems that the clamp for detection only depends on the air cylinder piston to push the sliding base to perform test during use, the tensile force of the air cylinder is not enough, the power of an air pump needs to be enlarged as well as the energy-saving property of the clamp for detection during use is influenced are solved.

Description

technical field [0001] The invention belongs to the technical field of testing jigs, and in particular relates to a jig for testing the damp and heat resistance performance of metal plates. Background technique [0002] The heat and humidity resistance test of the metal sheet refers to the test of the product with the heat and humidity resistance treatment on the surface of the metal plate. It is mainly used in the manufacture of computer cases, servers and home appliances. One of the main indicators of quality is to detect whether the surface of the steel coil is corroded when it is transported and stored in a hot and humid environment. [0003] In the Chinese patent No. 201721086426.9, the fixture for testing the heat and humidity resistance of metal sheets is mentioned. The piston is driven by the cylinder to move the clamping block, so that the clamping block drives the metal sheet to be tested to move for pressure and tension testing. However, when using the testing ji...

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Problems solved by technology

[0004] The object of the present invention is to provide a jig for testing the heat and humidity resistance of metal sheets, so as to solve the problem that when using the jig for testing the heat and humidity performance proposed in the above-mentioned background technology, it is difficult to make full use of the driving force of the cylinder for the jig for testing the damp and heat performance and it is difficult to carry out Humidification problem

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