| 摘要 |
PCT No. PCT/CH81/00049 Sec. 371 Date Jan. 8, 1982 Sec. 102(e) Date Jan. 8, 1982 PCT Filed May 11, 1981 PCT Pub. No. WO81/03297 PCT Pub. Date Nov. 26, 1981.It is proposed that the supply movement of electrodes, especially micro-welding or micro-soldering electrodes takes place in a controlled fashion. For this purpose, PRES-value receivers (65, 67) are provided, which change the PRES-value of a relatively known value for the action of the electrode with regard to the work piece, such as the geometric position, if need be additionally the supply pressure, on its output side into an electrical signal, whereby the electrode position is already detected before contacting the work piece. The working connection between positioner and a supply element (50) for the electrode (59) is therefore preferably realized by an electric motor (42), a gear wheel type threaded connecting rod (44, 46). As PRES-value receiver preferably a potentiometer (67) of known displacement/force characteristic is used which takes up a relative movement between electrode (59) and the reference system. |
