Motor-operated hydraulic pump for power screwdriver, has pressure measuring sensor interface detecting pressure values at screwdriver or at pump and transferring values to signal preprocessing unit for controlling pump and/or screwdriver

摘要

The pump has a signal preprocessing unit with a microcontroller for automatic controlling a screwdriver. An on-board-memory card stores documentation data and measured data of screw connection. A pressure measuring sensor interface (107) is provided for detecting pressure values at the screwdriver or at the pump and for transferring the values to a signal preprocessing unit for controlling pump and/or screwdriver.