Piston-cylinder arrangement as a drive for a welding electrode

摘要

For the purpose of obtaining a quick operating mode in a piston-cylinder arrangement used for driving a welding electrode, with braking of the movement of the electrode (1) in the direction of the workpiece (2), a valve (17, 18) which is decisive for this braking procedure is mechanically pushed open on placing the electrode (1) on the workpiece (2), via a pin (16) which is held on a component (10) of the piston arrangement (6), which component bears the electrode (1) and is movable relative to another component (9) of said arrangement counter to the force of a spring (13) (Fig. 2). <IMAGE>