Research On Intelligent Technologies Of Arc Welding Robot

In recent years, the enginery industry builds a serious of welding workstations which have robots with eleven degrees of freedom, and keeping spread and application. However, The efficiency of teaching and playing is low and don't have intelligent. There is no vision and can't feel the real environment change during the robot is welding. It has limitation in project application. In order to improve the efficiency of robot program and weld quality as well as intelligent sensor and compensate automatism. Study of welding robot intelligence is an advanced task which has composite subjects.The article brings forward a general scheme about robot welding CAD/CAPP/CAM/PDM, which combines an intelligent system with the vision sensor information. And discuss about the key technology.The three-dimensional(3D) simulation of robot welding process is a graphic platform of off-line programming. A new development way has been put forward to realize the simulation system of three-dimensional graphic, which based on C/S structure develops a off-line programming system WROBCAM of the work station independently including a OLE item. And with the COM interface it has realized the no-slot integration of the three-dimensional graphic and topological information of the welding workpiece. Till now, the graphic simulation of welding robot is realized by second-development, which has many problems such as: it doesn't have a well compatibility; the simulation result can't be satisfying; and it doesn't have self-property right etc. In the paper, under VC++ development environment, with using OpenGL graphic developing instrument, it has developed framework of three degree of freedom, six degree of freedom joint type arc-welding robot and two degree of freedom workstation, based on object -oriented programming, general solution is suitable to the calculate question to kinematics of a kind of multi-joint type welding robot.Feature-based design of weld product is one of a important supporting technique to solve the problem of the integration of welding CAD, CAPP and CAM systems. The definition and classification of the character of welded products and feature model method have been discussed, and the concept of the automatic welding assemblage has been put forward. It has put forward implementation methods of Feature-based design of universal and general workpiece.This paper puts forward a complex method to exploitate weld standard pieces and universal pieces realizing the property design of standard and universal pieces . It puts the property variable design method and establish various kinds of bevels and has improved it. And it has realized the auto welding assembling based on the joint property.