Interpolator based on single chip microcomputer

Abstract

The invention relates to an interpolator based on a single chip microcomputer, which comprises a single chip microcomputer module connected with a host computer, a pulse output circuit, a clock circuit and a reset circuit, wherein the pulse output circuit connected with the single chip microcomputer module receives pulse signals sent by the single chip microcomputer module, the clock circuit connected with the single chip microcomputer module provides work clock for the single chip microcomputer module, the reset circuit connected with the single chip microcomputer module controls the single chip microcomputer module to reset, and an interpolation software program is arranged in the single chip microcomputer module. The invention uses a common single chip microcomputer and some simple peripheral circuits to form the whole interpolator. The single chip microcomputer is used for reading interpolation commands sent by the host computer, and interpolation software in the single chip microcomputer is used for realizing interpolation calculation and outputting the calculation results through the IO port of the single chip microcomputer. The interpolator carries out interrupt response oninterpolation data and interpolation clock provided by the host computer and ensures the interpolation precision of the interpolator. The interpolator also introduces a corresponding digital filter to greatly enhance the evenness index of resultant velocity.

Description

technical field [0001] The invention relates to the field of numerically controlled machine tool systems, in particular to the technical field of motion control of the numerically controlled machine tool system, in particular to an interpolator based on a single-chip microcomputer in the motion control system of the numerically controlled machine tool. Background technique [0002] CNC machine tools are important basic equipment for realizing advanced manufacturing technology, and it is related to the strategic position of national development. Accelerating the development of domestic high-precision CNC machine tools with strong competitiveness has become an important task for the research and development departments and manufacturers of CNC machine tools in my country. In order to accomplish this task, several key technologies must be overcome, the most critical of which is the high-precision trajectory control technology of CNC machine tools. [0003] In the motion contro...

AI Technical Summary

Problems solved by technology

The result of ignoring the uniformity index of the composite speed is that the speed fluctuation of the motion control axis is too large, which will cause excessive vibration and noise in the processing process, reduce the service life of the tool and the machine tool, and also make the high speed of the CNC machine tool Precision trajectory control technology cannot be greatly improved

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