Patent ID: 6861611
Filing Date: 2005-03-01
Classification: B23K,G01N

Abstract:
1. A weld checking apparatus for a laser welding machine having a welding head triggering laser beam to a welding object, the weld checking apparatus comprising: an auxiliary flash intercepting plate removably mounted on a flexible arm installed on the welding head to intercept a flash generated during a laser welding process; a weld-checking/eye-protecting glass assembly disposed on a center portion of the auxiliary flash intercepting plate to display a weld portion in an enlarged scale during the welding process while intercepting the flash by being opened and closed in synchronization with a laser beam trigger speed of the welding head; and open/close control means for generating a trigger pulse and an open/close pulse synchronized with the trigger pulse and for providing the open/close pulse to the weld-checking/eye-protecting glass through the electric cable (