Stud welding apparatus

Details Stud welding apparatus Stud welding apparatus

2006-07-04

2006-07-04

Kerns, Kevin (Department: 1725)

Electric heating

Metal heating

For bonding with pressure

C219S099000

Reexamination Certificate

active

07071440

ABSTRACT:
A welding gun10has a collet for holding a stud with a flange and a shank at the tip of the welding gun. The collet comprises a tubular first collet member17, secured to the tip, which elastically opens to a larger diameter than the stud flange, for holding the flange at the tip, and a tubular second collet member22, secured to the tip of a piston rod21which extends from an air cylinder11provided in the aft portion thereof toward the first collet member, for, by the movement of the piston, picking up, accommodating, and holding the shank of a stud fed with its flange to the fore inside the first collet member17. A collet cover18is provided for enclosing the exterior of the first collet member17, from the tip end thereof, with the tip of the collet cover18and the tip of the first collet member forming a flange edge carrying space54for accommodating and holding the edge of the stud flange and holding the end of the stud shank in an attitude such that it floats free from the inner wall of the first collet member.

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