WIRE ELECTRODE DRIVE PRESSURE ADJUSTMENT SYSTEM AND METHOD

摘要

A welding torch is provided that includes a motorized arrangement for advancing continuous electrode wires (24) during welding. The torch has a pair of rollers (20,22) that contact the electrode wire (24) to force it through the torch during welding. A force adjustment selector (28) is provided in the torch handle (12) that allows the operator to alter the force or pressure applied to the electrode wire. The force adjustment selector (28) may include a pressure arm (46), a compression spring (54) and a threaded member (56). Markings (30) on the handle, or stops (38) provided between the selector (28) and the handle (12) allow for easy adjustment and verification of the proper pressure or force applied for specific types of electrode wires.