DIGITAL WEAVING MOTION CONTROLLER FOR WELDING TORCHES

摘要

A digital controller for welding torch weaving is provided to control the operation of a welding torch accurately and control weaving parameters freely by inputting various kinds of weaving parameters through a user operation switch part. A digital controller for welding torch weaving comprises a user operation switch part(1), a power supply part(2), a microcomputer(3), a motion controller(4), an H bridge motor driving part(5), a fluorescent display part(7), an encoder(8), and a communication interface part(9). The power supply part receives a single DC(Direct Current) power and supplies different DC powers respectively. The microcomputer receives various weaving parameter values as digital signals to control a motion controller, and displays the parameter values on the fluorescent display part. The motion controller corresponds to an output signal of the microcomputer and the encoder to control the H bridge motor driving part. The H bridge motor driving part drives a DC motor(6) to a predetermined direction and speed. The fluorescent display part displays various kinds of information outputted from the microcomputer as characters or numbers. The encoder transmits driving speed and positions of the DC motor to the motion controller. An end limit switch(10) is installed at an input terminal of the microcomputer. A transformer(11) is installed at an output end of the H bridge motor driving part.