Design Of Pipeline All-Position Automatic Welder Based On DSP And CPLD Digital Control Technical

Transport industry includes Pipeline, Aviation, Railway, Road and Water-transport. Pipeline transport is one of the goals which is being emphatically developed by our government. Pipeline is a main part of pipeline transport. Pipe connection by welding is the key work in pipeline construction. So it is clear that research on the technology of pipeline all-position automatic weld is of great significance.This paper is to design and make a kind of double welds system which is been used in pipeline construction through of mechatronics technical. The design method which is based on DSP(TMS320F240) and CPLD technical makes the whole system of automatic welder to have not only functions of mechanical motion and welding, but also functions of information-examining, handling, adjusting and controlling. By using built-in hardware and software, The automatic welder has achieved flexible automation.Welding technique is also one of the topics discussed in this paper. The proper values of welding parameters are determined by welding tests. The determined welding parameters are input into the computer of automatic welder and the computer will finish curve fitting automatically. With the fitting curves, the automatic welder, when in course of welding, can continuously change welding parameters based on the current welding position.