| 摘要 |
<p>A guide assembly for guiding an electrical discharge machine apparatus moving wire electrode (12) through a workpiece (20). The guide assembly includes first, second, and third guide members (148, 152, 156) each having a bore for receiving the moving wire electrode (12) and a current pickup (36) is located between the second and third guide members (152, 156). The first guide member (148) is closest to the workpiece (20). The first and second guide members (148, 152) are mounted on a guide body (160) at respective first and second openings (164, 166) communicating with one another through a wire passageway (162) through the guide body (160). The guide body (160) includes a threaded portion (180) and a nut member (182) is used for engaging the threaded portion (180) and attaching the guide body (160) to the support assembly. The nut member (182) includes a housing (212) defining a fluid passageway (214) and an outlet bore (218) for creating a threading fluid stream.</p> |
