| 摘要 |
PURPOSE:To obtain the spot welding mechanism which can surely execute sure and stable welding without generating a positional deviation by positioning and superposing a plug pin and a lead frame via notches provided in a housing. CONSTITUTION:The broad lead frame 1A to be mounted with electronic parts is superposed on the bar-shaped plug pin 2 connected to a control circuit of the electronic parts and the front ends of electrodes 3, 3 are pressed to spot weld zones 4, 4. A current 7 is then passed thereto. The plug pin 2 and the lead frame 1A are spot welded in this way. The housing 5 having the notches 6, 8 for positioning are disposed in the above-mentioned spot welding mechanism and the welding is executed after the above-mentioned plug pin 2 is positioned by the notch 6 and the lead frame 1A by the notch 8, respectively. The plug pin 2 and the lead frame 1A are surely spot welded in this way without the positional deviation. |
