| 摘要 |
A missing weld prevention system for spot welders is provided, which is a technology designed for spot welders to prevent missing welds by detecting any defects using a sensor while performing spot-welding before feeding work-pieces. Used for the spot welder is comprised of a lower welding tip and an upper welding tip moving up and down from the top of the lower welding tip, which welds the work-piece transferred through between the lower and upper welding tips by applying pressure and electric current, this invention features the primary photo sensor, the current sensor, the secondary photo sensor, and the control unit serving to detect missing spot welds. |
