A zero point calibration method and clamping device for a five-axis machine tool

Abstract

The invention discloses a five-axis machine tool zero point calibrating method and a clamping device. The clamping device is used for clamping cuboid blanks, a machine tool is used for carrying out rough milling and finish milling on two planes of the cuboid blanks in the XOY plane of a machine tool coordinate system, the distance between the two planes after finish milling is used as a basis forpre-determining whether a zero point of the machine tool meets process requirements or not; firstly, the real-time working parameters of the machine tool are obtained by using the machine tool to carry out rough milling and finish milling on the two planes in the X, O, and Y planes of the cuboid blanks under the machine tool coordinate system, and then by comparing the theoretical plane distance parameters after finish milling with the working parameters of the two planes after actual finish milling of the machine tool, the out-of-range condition is compensated, therefore, the problem of zerodrift of a numerical control machine tool in the process of machining parts due to the influence of factors such as the temperature change of a factory building is solved, the quality risk caused by the zero drift is eliminated, the stability of the machining process is further guaranteed, and the measurement data is more reliable; and through the co-use of a movable clamping mechanism, the work intensity of operators is reduced.

Description

technical field [0001] The invention belongs to the field of manufacturing technology, and relates to a method for calibrating the zero point of a five-axis machine tool and a clamping device. Background technique [0002] The zero point of the machine tool is the mechanical origin set by the machine tool manufacturer when assembling the machine tool. It is an important data that technicians need to call when compiling the NC program. However, with long-term use or changes in the surrounding temperature of the workshop, the mechanical Drift, resulting in out-of-tolerance machining dimensions of parts, affecting the economic benefits of the enterprise. At present, five-axis machine tools use manual methods and use standard parts to measure and calibrate, which has errors and is time-consuming and laborious. Contents of the invention [0003] The object of the present invention is to provide a zero point calibration method and a clamping device of a five-axis machine tool to...

AI Technical Summary

Problems solved by technology

[0002] The machine tool zero point is the mechanical origin set by the machine tool manufacturer when assembling the machine tool. It is an important data that technicians need to call when compiling the NC program. However, with long-term use or changes in the surrounding temperature of the workshop, the mechanical Drift, resulting in out-of-tolerance machining dimensions of parts, affecting the economic benefits of the enterprise. At present, five-axis machine tools use manual methods, using standard parts for calibration, which has errors and is time-consuming and laborious.

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