| 摘要 |
A wire electric discharge machine including a saddle (13) provided on a bed (1), an X axis linear motor for moving the saddle in a horizontal X axis direction, a lower arm (11), to which a lower wire guide device (8) is attached, extends in the direction of a Y axis which is orthogonal to but in the same plane as the X axis. A ram (15), to which the lower arm is attached, is provided on the saddle, having a Y axis linear motor for moving the ram in the Y axis direction. The X axis linear motor includes a row of magnets (24a) fixed to the bed and an electromagnet (24b) fixed to a lower surface of the saddle, and the Y axis linear motor comprises an electromagnet (25b) fixed to an upper surface of the saddle and a row of magnets (25a) fixed to the ram.
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