Loading device for workpiece rigidity test and utilization method of loading device

Abstract

A loading device for workpiece rigidity test comprises a frame (5), a loading trolley (9) and fixture (11). The loading trolley (9) is capable of moving left and right, and the fixture (11) is fixed to the left end of the frame (5) and used for clamping a workpiece (1). An external threaded sleeve (7) is fixedly connected to the right side of the loading trolley (9) and used for extending into a hollow interior of a rotating shaft (6) to be in threaded fit with an internal threaded ring portion (71) at the left end of the rotating shaft (6). The right end of the rotating shaft (6) is in power connection with an output shaft of a driving motor (8) mounted on the right lateral surface of a boss (51) of the frame (5). An electronic control device (88) which is arranged on a shell of the driving motor (8) is electrically connected with the driving motor (8) and used for controlling the rotation speed of the driving motor (8), and accordingly the rotation speed of the rotating shaft (6) can be controlled according to requirements.

Description

technical field [0001] The invention relates to the field of material testing equipment, in particular to a loading device for workpiece rigidity testing and a use method thereof. Background technique [0002] The rigidity test of the material is an important index for the material performance of the workpiece. Materials may deform differently under different loads and thus exhibit different stiffness properties. Some existing testing equipment continuously applies gradually increasing loads to materials and measures the amount of deformation that occurs during the process. Due to the dynamic nature of load changes and the immediacy of measurement, this method is prone to cause measurement errors. For equipment with fixed value applied load, due to the discreteness of fixed value, it is difficult to obtain the point performance of expected value at any time. Moreover, slight fluctuations in the load are prone to occur during the hold of a fixed value, resulting in measure...

AI Technical Summary

Problems solved by technology

Due to the dynamic nature of load changes and the immediacy of measurement, this method is prone to measurement errors

For equipment with fixed value applied load, due to the discreteness of fixed value, it is difficult to obtain the point performance of expected value at any time

Moreover, slight fluctuations in the load are prone to occur during the hold of a fixed value, resulting in measurement errors

And although some equipment can guarantee the measurement accuracy, the cost is high and the maintenance work is complicated

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