Arc welding robot oscillating electric arc tracking system and method based on DSP (Digital Signal Processor)

Abstract

The invention provides an arc welding robot oscillating electric arc tracking system and method based on DSP (Digital Signal Processor). The system comprises an arc welding robot, an electric arc sensor, a filtering and protecting circuit and the DSP, wherein the arc welding robot at least comprises a welding gun which can oscillate left and right in the welding heading direction so as to weld a workpiece; the electric arc sensor is connected with the arc welding robot and comprises a Hall current sensor and a measuring resistor which are connected in series; the filtering and protecting circuit is connected with the electric arc sensor; the DSP realizes signal transmission with the arc welding robot by a robot interface circuit; and the DSP at least comprises a path rectification module and a pendulum deflection regulation module which are used for respectively regulating the welding direction and pendulum deflection of the arc welding robot. In the arc welding robot oscillating electric arc tracking system, the welding line can be laterally and longitudinally tracked by the electric arc tracking system, and the pendulum deflection is regulated, the flexibility of the robot is improved, and the arc welding robot oscillating electric arc tracking system is favorable for intelligently applying the robot in the practical industrial production.

Description

technical field [0001] The invention relates to the field of welding technology, in particular to a DSP-based arc welding robot swing arc tracking method and control system, including welding seam center tracking and swing amplitude real-time adjustment. Background technique [0002] With the development of robot technology, welding robots have been widely used in automobiles, aerospace manufacturing and other fields. In order to expand the application range of welding robots in the manufacturing industry and continuously improve the application level, research and development of information feedback intelligent welding robots with certain perception, judgment and decision-making functions or the development of intelligent technology for welding robots will be one of the development directions of welding automation. one. Due to the influence of various factors such as the welding environment, the actual welding conditions often change due to interference, which often causes...

AI Technical Summary

Problems solved by technology

[0004] At present, most robot arc sensing products are manufactured by foreign technology, and the cost is too high; there are also many experts and scholars in China who are conducting research on swing arc sensing, for example, China's patent application number: 200820053115. Arc sensing welding seam real-time tracking control device", through the magnetic control arc sensor, welding system composed of welding torch and welding power supply, control system and actuator for automatic welding seam tracking

However, it mainly relies on computers for processing and control, which is not conducive to industrial system integration and wide application.

Images