Patent ID: 9741678
Date: 2017-08-22
CPC Classifications: B23K,H01L

Claim:
1. A laser welding machine for welding, with laser light, a device in which a conductive lower terminal is overlapped by a conductive upper terminal, the laser welding machine comprising; an elevator having a mechanism that is capable of sliding an elevating platform; a pressing actuator that is fixed to the elevating platform at a base part of the pressing actuator and has a tip slidably connected to the base part and pressing the conductive upper terminal toward the conductive lower terminal; a laser oscillator; a machining optical device that is fixed to the elevating platform and has a lens to focus the laser light emitted from the laser oscillator; a position detector that detects a vertical positioning of the pressing actuator; a counter that receives an output of the position detector and delivers position information; and a control circuit that controls, based on the position information received from the counter, the elevator, the pressing actuator, and the machining optical device, and controls operation of the laser oscillator.