Manufacture Of Intelligent Measurement And Control System On Hydraulic Turbine Repairing Welding Robot

Nowadays, the intelligentialized welding equipment----the welding robot is used widely. But the welding system which consists of the external equipments of the welding robot, such as the welding power supply, the wire feeder, the welding torch and the shielding gas, is not mostly collocated with the universal digital interface by the manufacturers. If we want to get the welding system and the robot system loop-closed, we must match the appropriative numerical control system with the port. In order to make the external equipments of welding robot and the robot system loop-closed, we must detect and control the welder, the wire feeder and gas-protection device. We will process the detected parameters, and plot the time-varying curves of welding current, welding voltage, wire feed rate and welding wire accumulation in the welding process. According to the results, we will make the comprehensive analysis of the external equipments of welding robot. Industrial computer or hand-hold controller serves as the units of detection quantity display and the controlled quantity input, offering a friendly man-machine interface to the welding robot system.This subject employs PC and MCP system. The PC is an industrial computer, and the MCP is composed of the welder detection and control system and hand-hold instruction system. The paper expounds the designing ways and specific operations of software and hardware and designs the software interface of PC in detail .This welder detection and control system is an independent application system of single-chip, which contains the measurement circuit of voltage, current and wire feed rate, the detection of broken wires and breakaway gas, the failure alarming circuit and the communication circuit. Hand-hold device is also an independent application system of the single-chip, including the circuits of liquid crystal interface, the scanning and communication. Industrial computer software is designed by Delphi, which contains data processing programming and communication programming.At the end of the paper, we will make an analysis of the methods and results of the system debugging and testing. The test indicates that the system of this subject makes the function of welder perfect and the robot system loop-closed. The achievements of this thesis are of theoretical and practical engineering significance to the welding robot with independent intellectual property.