Automatic cutting method

Abstract

The invention discloses an automatic cutting method. The automatic cutting method includes the steps that when a product to be cut is moved to a visual inspection area, the product to be cut is photographed by an industrial camera, and the image information of the product to be cut is obtained; the cutting patterns of the product to be cut are extracted by a vision algorithm program, and spline curve fitting is conducted on contour edge information of the cutting patterns to form smooth curve contour information; the product to be cut is moved to a cutting area, hand-eye calibration is carriedout by the relation between image pixel coordinates of the industrial camera and the tail end of a laser device, and smooth curve contour coordinates are converted to motion trail coordinates of thetail end of the laser device; and a vision industrial personal computer drives the laser device to operate along the motion trail according to the motion trail coordinates of the tail end of the laserdevice. The automatic cutting method has extremely high universality, images are automatically obtained by the industrial camera, the operation trail of the tail end of the laser device is obtained through coordinate transformation, the error caused by a tool and the product can be compensated during cutting, and the cutting precision is improved.

Description

technical field [0001] The present invention relates to the field of automatic control, more specifically, to an automatic cutting method. Background technique [0002] The traditional cutting method is executed by the motion trajectory preset by the motion control program. The processed product needs to be fixed with a fixed fixture. The error caused by the tooling and the error of the product itself cannot be compensated during cutting, resulting in cutting The accuracy is generally not high, and due to the different products, it is necessary to rewrite the motion program and design and process specific fixtures, which is not very versatile. Contents of the invention [0003] Based on this, the present invention provides an automatic cutting method to overcome the defects in the prior art that specific fixtures are required to fix the product to be cut, and the cutting accuracy is not high and the versatility is not strong. [0004] Its technical scheme is as follows: ...

AI Technical Summary

Problems solved by technology

[0003] Based on this, the present invention is to overcome the defects in the prior art that specific fixtures are required to fix the product to be cut, and the cutting accuracy is not high, and the versatility is not strong, and an automatic cutting method is provided.