Wallboard structure fatigue testing machine clamp

Abstract

The invention provides a wallboard structure fatigue testing machine clamp. The traditional clamp is connected with a high-frequency fatigue testing machine through connecting bolts, but the wallboard structure fatigue testing machine clamp provided by the invention utilizes clamping head embossing processing, thereby greatly avoiding stress integration of a clamp body during loading, simplifying the device and facilitating operations. A clamp press plate and a connection plate are connected by utilizing a circular arc groove manner, thereby meeting the requirement of a testing machine on the rigidity of the clamp to the greatest extent; the clamp press plate and a test piece are connected through bolts, and a friction type connection manner is utilized, so that the bolts only exert connection and location functions without bearing a shearing force. According to the wallboard structure fatigue testing machine clamp, the wallboard structure fatigue test requirements and integral design requirements can be met, the structure is compact, the appearance is simple, and the machine is convenient to use and maintain.

Description

technical field [0001] The invention relates to a fixture for a wall plate structure fatigue testing machine, which belongs to the technical field of mechanical processing equipment manufacturing and is suitable for tension, compression and crack expansion tests of the wall plate structure on the fatigue testing machine. Background technique [0002] Usually, the standard fixtures equipped with the fatigue testing machine are equipped for standard steel specimens. For the test of ductile materials subjected to tensile and compressive loading, restraint guide plates are generally used to prevent buckling of the wall plate. However, the test proves that in the tension-compression fatigue test, the restraint guide plate may cause the splint to be close to the sample, and then make the sample bear additional load during the process of applying the clamping force, thus affecting the test results. In addition, during the experimental clamping process, especially for large wall pan...

AI Technical Summary

Problems solved by technology

However, the test proves that in the tension-compression fatigue test, the restraint guide plate may cause the splint to be close to the sample, which will cause the sample to bear additional load during the process of applying the clamping force, thus affecting the test results

In addition, during the experimental clamping process, especially for large wall panels, the center of the upper and lower clamps is not parallel to the center of the specimen, resulting in eccentric force after force is applied.

The traditional fixture is connected with the fatigue testing machine by the connection thread, and the thread connection requires good self-locking, high wear resistance and fatigue life, so it is more troublesome to select and realize the pitch

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