Control System Of Welding Machine Research Articles

Design of Control System for Automatic Welding Machine for Battery Packs of New Energy Automobile

According to the welding technology of the battery packs in new energy automobile, this paper adopts PC and motion control card as the hardware of the automatic welding machine control system and the software is designed based on the idea of both the hierarchical design and the modular design. The automatic operation of code G and code M of the numerical control system has been realized. Combining the coarse positioning with the fine positioning effectively solves the problems between efficiency and accuracy in position, which greatly promotes the stability of the system.It has excellent control functions and good performance.

Joining lithium–ion batteries into packs using small-scale resistance spot welding

This paper presents selected problems of small scale resistance spot welding in the construction and usage of lithium–ion batteries. A few ready-made battery packs were examined with the help of reverse engineering. The chemical composition of selected elements was investigated and the joints underwent metallographic examination (both macro- and microscopic). A prototype of a small-scale resistance welding machine was designed for joining batteries into packs and the prototype was tested. A series of sample joints were made and tested for resistance and strength. A similar course of tests was administered to the original pack. It was found that there is a difference between the sample and the original joints in their diameter and levels of resistance. Suggestions are made for further developments in the welding machine's control system to improve the quality of the joints.

Design and Research of Anti-Interference for Control System of Automatic MIG Welding Machine

Based on the tasks of automatic MIG welding machine, in this paper, a SCM control system of welding machine is presented and its anti-interference design is carried out. Some hardware measures are used to resist interference, including power supply anti-interference, channel anti-interference, space anti-interference, selection of components, circuit layout and hardware "watchdog". Redundant instruction, software "trap", software "watchdog" and other software anti-interference measures are also adopted. NB-500IGBT inverter welding machine is used for welding test and the results show that the above mentioned hardware and software anti-interference measures are effective to solve the interference for control system of automatic MIG welding machine.