Workpiece alignment method and device for secondary clamping of machine tool and computer storage medium

Abstract

The invention provides a workpiece alignment method and device for secondary clamping of a machine tool and a computer storage medium. The project development method comprises the following steps that a trigger type probe is arranged on a machine tool spindle, and a measurement module is arranged on a workpiece; the probe is controlled to move to a plurality of measurement points on the measurement module before and after secondary clamping, and coordinates of a plurality of collision points of the probe and the measurement module are recorded; center coordinates of the measurement module before and after secondary clamping are calculated by utilizing the coordinates of the multiple collision points before and after secondary clamping; an alignment matrix is calculated by utilizing the center coordinates of the measurement module before and after secondary clamping; and the initial machining code is modified based on the alignment matrix, so that the machine tool can accurately machine the workpiece according to the aligned machining code. According to the workpiece alignment method and device and the computer storage medium, by means of the mode, the project development method can effectively solve the problem of alignment of the position and the posture of the workpiece, the alignment speed of secondary clamping of the workpiece is increased, the measurement time is shortened, and therefore the labor intensity of an operator is greatly reduced.

Description

technical field [0001] The present application relates to the technical field of numerical control machine tools, in particular to a workpiece alignment method, device and computer storage medium for secondary clamping of machine tools. Background technique [0002] In the process of CNC machine tool processing, there are often problems such as the movement of the processed product position, which leads to the processing dimension accuracy not meeting the setting requirements. This problem is often caused by the low alignment accuracy of the secondary clamping workpiece. Therefore, the alignment of the secondary clamping workpiece plays a pivotal role in the numerical control system, and the speed and accuracy of the alignment of the workpiece will directly and seriously affect the production efficiency and processing quality of the product. [0003] The traditional block method and lever percentage method have low manual measurement accuracy and lack of versatility; in addi...

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Problems solved by technology

[0003] The traditional block method and lever percentage method have low manual measurement accuracy and lack of versatility; in addition, the currently used method of resetting the workpiece coordinates based on the coordinate system of the reference hole can only be used simply for finding coordinates in two-dimensional space. Positive, and for the measurement of the reference hole position, the error is more sensitive and the stability is insufficient

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