SELF-ADJUSTING LINER ASSEMBLY FOR WELDING TORCH

摘要

A self-adjusting liner assembly (24) for a welding torch (10) includes an elongated tubular body (26) having a forward end (28), a rearward end (30), and a central bore (32) extending from the forward end to the rearward end. An elongated fixed tube (44) is mounted in the bore. The assembly further includes an elongated tubular slide (46) having an inner end (48), an outer end (50), and a shoulder (52) proximate the outer end. The fixed tube (44) is received in the inner end of the slide (46), and the slide cooperates with the fixed tube in a telescoping relationship in the bore. A resilient member (58) is disposed in the bore and envelopes a portion of the fixed tube and the slide. The resilient member engages the shoulder (52) of the slide and urges the slide away from the fixed tube and toward the forward end of the body.