| 摘要 |
PURPOSE:To curtail the cost of equipment, and to improve the operation rate by connecting to one welding cable connecting port of one set of a welder body through a power board provided with a timer function for switching successively a connection at every prescribed time. CONSTITUTION:A power board 12 provided with a timer function is interposed between cable groups 11a, 11b, 11c... of each weld part 7a, 7b, 7c... and a welding cable connecting part 10a. By switching six pieces of contacts 13b in this power board 12, electric conduction is executed by shifting successively at every weld part 7a, 7b, 7c..., and welding is executed successively at every weld part 7a, 7b, 7c.... In this way, the number of weld pats which can be connected can be increased by only increasing the number of the contacts 13 of the power board 12. Accordingly, as for the necessary welding cable connecting port 10a, and as for a welder body 10, one set is enough, therefore, the cost of equipment is reduced, and the operation ate is improved. |
