Research On Control Technology Of CNC Wire Bending Robot With Single-head And Multi-mode

The current market demand for metal wire production of our country has been increased sharply and the type of product development is becoming increasingly diverse and complex. However, the major production mode of metal wire forming is labor-intensive, inefficient and inaccurate in our country, and its traditional forming process can not meet the fast and flexible requirements of modern manufacturing systems, which goes against the concept of "high efficiency, high precision and high intelligence", advocated by modern design and manufacturing.Considering the long-term national development and the equipment need of metal wire market, this article presents a highly flexible manufacturing philosophy through the production mode with small batch production and many varieties, which use reconfigurable device technology and the method of product design with flexible and modular. In order to accelerate the development process of our automation equipment of metal wire, this paper has a further study on the principles of metal wire forming and CNC machining technology, which base on the double-mode CNC wire bending robot that has been developed. Finally, a new single-head and multi-mode CNC metal wire forming equipment with intellectual property right has been researched and developed. The research contents of thesis are as following:1、By analysing metal wire product market demand, a new CNC wire bending robot with single-head and multi-mode has been developed according to its diverse and complex development direction, the overall design of CNC wire bending robot hareware system has been made, and the entire mechanical structure, servo system and the electrical control have been completed.2、The bending mold system has been described. Two bending modes of wire bend and pushing bend have been deduced though theoretical analysus. The mathematical relationship among modeling parameters of maching parts, bending mold geometry and physical activity for each of the three axes of motion has been established. Finally, the analysis for the wire bending process of the bending mold system has been completed.3、Develop and design the CNC wire bending robot system software and each module of the CNC system. The software function modules has been divided, including the system initialization, parameter settings, product management, decoding module, manual control, automatic processing and monitoring modules etc. The human computer interface has been well designed, and can be simply and reasonably operated.4、The machine entity structures have been completed according to the hardware and software control system of CNC wire bending robot. The characters of PID, speed, accuracy and other aspects have also been debugged. Finally, the overall performance of the robot has been made and completed testing though the processing code that is produced by the automatic programming function.