Method of Realizing Tool Nose Follow Machining in Four-Axis Horizontal Machining Center

Abstract

The invention discloses a method for achieving RTCP machining on a four-axis horizontal-type machining center. Position sensors are arranged on coordinate axes of an ordinary four-axis horizontal-type numerically-controlled machine tool, real-time values, collected in the machining process, of coordinate positions of a workpiece are transmitted to a calculation device by the position sensors, the coordinate compensation value of the workpiece is calculated in real time by the calculation device according to the distance of the null point of a workpiece coordinate system and the center of the B-axis and the real-time values of the coordinate positions, and the machine tool is controlled by an NC controller according to the workpiece coordinate compensation value provided by the calculation device to adjust machining allowance in real time so that the workpiece can be machined. On the premise that original machining functions of the four-axis horizontal-type machining center are achieved, RTCP machining is achieved on the four-axis horizontal-type machining center, fields of machining through the ordinary four-axis horizontal-type machining center are expanded, the defect that RTCP machining can only be achieved on an imported five-axis high-end machine tool is overcome, and technical monopolies of imported five-axis series machine tools are broken.

Description

Technical field [0001] The invention belongs to the technical field of horizontal machining centers, and specifically relates to a method for realizing tool tip following machining in a four-axis horizontal machining center. Background technique [0002] Machine tools are the leader of the equipment manufacturing industry and the foundation of the machinery industry. With the rapid development of my country's national economy, it has greatly stimulated the rapid growth of market demand for machine tools and molds. At the same time, the revitalization of the northeast old industrial base and the western development strategy have brought new opportunities for the development of the machine tool industry. Especially in recent years, with the enhancement of my country's contemporary military technology, the demand for high-tech equipment is increasing. In order to get rid of the dependence on foreign equipment, domestic machine tool manufacturers need to provide better and more econo...

AI Technical Summary

Problems solved by technology

However, aluminum and titanium alloys have the characteristics of easy deformation, high viscosity, and one-time molding during processing. High-speed five-axis machine tools must be used to complete their processing. Five-axis cannot be realized on traditional three-axis and four-axis machine tools. processing

The most critical technical bottleneck is that ordinary machine tools cannot realize tool tip following (ie RTCP) processing of workpieces, because RTCP processing is only applicable to machine tools with five axes or more, which greatly restricts the processing range of ordinary machine tools and limits its use in special Due to the application in the industry, users can only purchase expensive five-axis equipment for the processing of complex molds, which brings about a series of problems such as increased costs, difficult maintenance, and complicated machining programming.

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