Method and arrangement for carrying out the procedure for the positioning of the welding head of a welding machine

摘要

Method and apparatus for producing the welding force for a welding head of a CNC-controlled resistance welding machine (1) with the use of a double-acting pneumatic cylinder (8) of small chamber volume. The pneumatic cylinder (8) is arranged to act between the drive (11) in the direction of the Z-axis and the welding head (7) carrying the welding tool (17) and can be acted upon in the direction of the Z-axis by a working pressure which can be preset by a valve (P) (cf. figure). <IMAGE>