Automatic edge finding system for machine tool workpiece

Abstract

The invention discloses an automatic edge finding system for a machine tool workpiece. The automatic edge finding system comprises a hardware portion and a software portion. The hardware portion comprises a spring power contact type probe, a peripheral control module based on a single-chip microcomputer, and an electronic handwheel switching interface circuit module. The software portion comprises an edge finding mode selection program module, a program module for five edge finding modes, and a liquid crystal display program module. By means of the system, no manual edge finding is needed, no requirement for the degree of skilled operation of operators exists, the edge finding time is short, the edge finding accuracy is high, errors on the aspects of manual operation and calculation are avoided, automatic edge finding is achieved for workpieces, the midpoint and the four corner points of a square workpiece can be conveniently and automatically positioned, much inconvenience caused by an existing manual edge finding mode is avoided, production efficiency is improved, and the practical machining requirement is met.

Description

technical field [0001] The invention relates to the technical field of edge-seeking workpieces in machining centers, in particular to an automatic edge-finding system for machine tool workpieces proposed for machine tools without automatic edge-seeking functions. Background technique [0002] Today's CNC milling machines and machining centers generally use offset edge finders to find the edge of the workpiece before machining. In addition, there are photoelectric edge finders, rotary edge finders, and Renishaw probes. However, each type of edge finder requires manual edge finding, and there are many inconveniences in the edge finding process. For example, when approaching the workpiece, it must slowly approach the workpiece to prevent the edge finder or the probe from colliding with the workpiece. Manual edge finding also results in the time and accuracy required for edge finding being limited by the operator's experience and state. For inexperienced operators, edge finding ...

AI Technical Summary

Problems solved by technology

However, each type of edge finder requires manual edge finding, and there are many inconveniences in the edge finding process. For example, when approaching the workpiece, in order to prevent the edge finder or the probe from colliding with the workpiece, it must slowly approach the workpiece

Manual edge finding also results in the time and accuracy required for edge finding being limited by the operator's experience and state. For inexperienced operators, edge finding takes a long time. If the operator is not in good condition, These tedious operations will cause operators to make operational and calculation errors

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