Electronically controlled device for a double operating cylinder as in welding robots controls pressure in primary and secondary sides through ideal signal and functions

摘要

An electronic control for double cylinder operation comprising different pressures on the primary and secondary sides receives an ideal signal (S) corresponding to the primary side pressure valve (PV1) and produces signals for both sides' pressure control valves (PV1,PV2) according to this value and a given function which produces the required outlet (A1,A2) pressures.