Machine tool vision positioning method and system and machine tool

• Main Authors: ZHOU YANG, ZHU ZHIHAO, CHEN GE
• Format: Patent
• Language: Chinese; English
• Published: 20.04.2018
• Subjects: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; CONTROL OR REGULATING SYSTEMS IN GENERAL; CONTROLLING; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS; PHYSICS; REGULATING; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

The invention provides a machine tool vision positioning method and system and a machine tool. The method includes the following steps: sampling the edge characteristic curve of a positioning target in a CAD file, and obtaining a matching template point of the positioning target; collecting an image of the positioning target by using an industrial camera, and obtaining an edge image of the collected positioning target image; matching the edge image with the matching template point, and obtaining the matching parameters of the matching template point when the matching degree is optimal; obtaining the calibration parameters of the industrial camera; and determining the machining zero of the positioning target based on the calibration parameters and the matching parameters. According to the machine tool vision positioning method and system and the machine tool, the shaped drawn by CAD is used as the characteristic of edge positioning, automatic positioning of a work piece positioned in anon-tooling way can be re