Centralizing loader

Abstract

The present invention has opened a loading device with central locating to the public, which cosists of base plate, fixture seat, adjusting slide block, guiding rod, lead screw and wheel disc with the structure as setting fixture seat at two sides of base plate, to set two adjusting slide blocks on the guiding rod, to set right-and-left screw nut at up middle part of two adjusting slide blocks separately, the slide block right-and-left screw nut to be inner placed with ball adjusting lead screw corresponding to left-right thread direction, to set an adjusitng wheel disc at axial end of ball adjusting lead screw outside one side of fixture sat, to set clamping fixture for engaging the pulling pressure at upper part of two adjusting slide blocks. In operation, the right-and-left screw nut at two ends of lead screw in loading device will carry out outwards or innerwards of simmetry motion to pull loading clamping fixture because of applying the structure of right-and-left screw nut and accurate ball adjusting lead screw.

Description

technical field [0001] The invention belongs to the class of measuring devices, in particular to devices for measuring material structures. Background technique [0002] The observation and measurement of the mesomechanics of object materials, including the observation and measurement system of solid fine material structure, and the device for mechanical research and experiment under extreme conditions are national key scientific research and development projects. [0003] With the rapid development of material science, the research on the mechanical properties and testing of new materials has become one of the important experimental projects. When observing and measuring the microstructure of material performance, there is a correlation between its stability and performance under the action of a force field and the microstructure, which not only provides reliable data for the application of new materials, but also provides information for various as...

AI Technical Summary

Problems solved by technology

Due to the large deformation of the material under the action of the external force field, when people use the current loading device for experiments, one end is fixed and the other end is applied with load to form unidirectional tension or compression, so the test piece produces unidirectional deformation and displacement during the experiment.

Depending on the size of the material and the specimen, when observing and measuring, the moving distance of the micro- and nanostructures of the material under this force field is thousands of times, tens of thousands of times, or even more than the moving distance of the local observation area of ​​the material. The observed point moves to the point where it cannot be tracked and cannot be found when the instrument observes, and at the same time seriously affects the measurement accuracy

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