Non-contact force loading device for simulating processing of three-axis numerical control machine tool

Abstract

The invention relates to a non-contact force loading device for simulating the processing of a three-axis numerical control machine tool. The device mainly comprises three parts: a loading rod, a loading plate and a tri-translational parallel mechanism, wherein the loading rod is arranged at the front end of a three-axis numerical control machine tool spindle; the loading plate is arranged above the tri-translational parallel mechanism; and the tri-translational parallel mechanism is arranged on a numerical control machine tool working table. According to the non-contact force loading device for simulating the processing of the three-axis numerical control machine tool provided by the invention, through controlling the tri-translational parallel mechanism to track the movement of the three-axis numerical control machine tool, the loading rod is located in the center of the loading plate in real time; and through feeding currents with different frequencies to the loading plate, forces with different frequencies can be applied to the loading rod, and a processing process of the three-axis numerical control machine tool is further simulated, so that the performance test of the numerical control machine tool is realized. The device is simple and symmetrical in structure, easy to realize modularization, and low in manufacturing cost.

Description

technical field [0001] The invention relates to the field of machine tool reliability tests, in particular to a loading device for simulating three-axis numerical control machine tool processing used in machine tool reliability tests. Background technique [0002] CNC machine tools are high-tech working machines, machines for manufacturing machines, basic equipment for realizing national industrialization, modernization, informatization, and intelligence, and an important guarantee for realizing the strategy of manufacturing a powerful country. For CNC machine tools, its reliability not only refers to the smooth operation of the machine tool itself, but more importantly, it can ensure that qualified products can be processed for a long time, so reliability is an important indicator of CNC machine tools. The reliability of CNC machine tools involves the entire life cycle of CNC machine tools, from the design, manufacture, assembly, installation, commissioning, user use of CNC...

AI Technical Summary

Problems solved by technology

However, the current high-stress reliability test only applies single-axis loading to CNC machine tools, and it is difficult to apply multi-dimensional loads to multi-axis machine tools.

But in fact, the machine tool is subjected to multi-dimensional forces and moments during cutting, and single-axis loading cannot reproduce the actual working conditions of the machine tool, which greatly reduces the reliability effect

Images