Apparatus for orienting the wire electrode support and guide member and the machining fluid nozzle of a travelling wire EDM apparatus

摘要

In a travelling wire EDM apparatus, a unitary assembly of at least one of the electrode wire support members and a machining fluid nozzle disposed coaxially to the wire is installed on a plate which is displaceable such as to provide the electrode wire passing through the machining zone in the workpiece with an appropriate inclination. Inclination of the unitary assembly of the electrode wire support member and machining fluid nozzle is obtained by a swivel member mounted on the plate and oriented by a tube through which the electrode wire is passed. The tube is supported along its length by a pivot which is at all times disposed symmetrically to the electrode wire lower support member relative to a plane of symmetry. The unitary assembly is also supported by a swivel joint member interconnected to the first swivel joint member such that the angular displacement of the respective swivel joint members are symmetrical.