A five-axis linkage operation control method for laser cutting

Abstract

The invention relates to a laser cutting five-axis linkage operation control method. The method specifically comprises the following steps that S1, the feeding speed of a laser cutting head is obtained, the curvature of a cutting path of a cutter is calculated, if the curvature is larger than a set threshold value, a high-curvature section is judged, the step S2 is executed, otherwise, a low-curvature section is judged, and the step S3 is executed; S2, the two ends of the high-curvature section are taken as a starting point and an ending point to generate a low-curvature virtual path, a strokeincrement on the low-curvature virtual path is calculated, the step S4 is executed; S3, a mechanical rotating point on the low-curvature section coincides with a laser cutting point, the stroke increment on the cutting path of the cutter is calculated, and the step S4 is executed; and S4, whether the stroke increment meets the constraint or not is judged, if yes, the stroke increment is output toa servo motor, the laser cutting head is driven to conduct cutting, and if not, the feeding speed is reduced, and the step S1 is executed. Compared with the prior art, the method has the advantages that the workpiece cutting machining rate is increased, and the stability is better.

Description

technical field [0001] The invention relates to the technical field of automatic processing machine tools, in particular to a five-axis linkage operation control method for laser cutting. Background technique [0002] The equipment manufacturing industry is closely related to the comprehensive national strength of a country, and the revitalization of the equipment manufacturing industry requires high-end, practical, high-quality and low-cost machinery and equipment as the basic pillar. As a representative of mechanical equipment, CNC machine tools are multi-axis linkage to complete tasks, and are called the "mother machine" of equipment manufacturing. There are many types of CNC machine tools. The most common linkage methods are three-axis linkage and five-axis linkage. Compared with the former, five-axis linkage requires more cumbersome transformation in kinematics, but it is suitable for processing complex curves or surfaces. The application value is higher. [0003] Las...

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Problems solved by technology

[0006] The purpose of the present invention is to provide a five-axis linkage operation control method for laser cutting in order to overcome the defects of low processing efficiency and low precision for high-curvature cutting paths in the above-mentioned prior art

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