| 摘要 |
Disclosed is a welding object supporting device. The disclosed welding object supporting device is provided on a fixing welding electrode in a nut welding system including a movable welding electrode and a fixed welding electrode to support a welding object corresponding to a metal panel and a nut. The device includes i) a lower folder fixedly installed at an upper end of a fixed welding electrode and having an air supply passage as an interior space opened upwards, ii) an upper holder screw-coupled to an upper portion of the lower holder, having a pin hole, and supporting a metal panel, iii) a cylindrical panel rotating pin inserted from a lower end of the pin hole of the upper holder, of which an upper end protrudes to an upper end of the pin hole, and inserted into a mounting hole of a metal panel, and iv) a rod-shaped nut rotating pin inserted from a lower end of the panel rotating pin, of which an upper end protrudes to an upper end of the panel rotating pin, and inserted into a nut. An air flow passage connected from a lower end to an outer side of an upper end of the nut rotating pin is formed in the nut rotating pin. |
