| 摘要 |
<p>This document contains a description of a die-sinking electrical discharge machine (10), specifically but not exclusively used to produce dies, comprising a machining tool electrode (12) moved along at least one vertical axis by a feed device (24) coupled with at least one rotary electrical motor (22). The rotary electrical motor (22) is a brushless motor connected directly to a rotating drive part (26) for the feed device (24), whose moving driven part (28) is coupled with the tool (12). A control unit (36) to operate the motor (22) controls the rotation of the motor (22) in accordance with its angular position in a closed loop control configuration. <IMAGE></p> |
