| 摘要 |
<p>An apparatus for maintaining the weld tip and gas nozzle of a robotic welding apparatus is provided. The present invention includes a plurality of functional stations at which various operations may be performed on the gas nozzle and/or welding tip In the first station, the gas nozzle is removed from the welding arm and the interior surface of the gas nozzle is cleaned by means of a rotating brush. In the second station of the present apparatus, a cutter slide serves to pin and shear the weld wire from the weld tip. The third station of the instant apparatus includes a grinding belt which serves to grind the leading face of the weld tip. Following the grinding operations of station three, the welding arm may be returned to station one for the reapplication of the gas nozzle and then to station four for the pneumatic application of an anti-spatter compound. Thereafter, the welding arm may be moved to station five of the present invention which includes a reference block in order that the robot arm may be positioned and welding wire extended therefrom until it contacts the reference block to establish a predetermined length of weld wire extending from the weld tip. In the event it is desired to replace the weld tip after a prescribed period of operation, following the removal of the gas nozzle and the clipping of the wire from the weld tip, the welding arm is moved to a tip removal and application station.</p> |
