Patent ID: 6483075
Filing Date: 2002-11-19
Classification: B23K

Abstract:
Three-dimensional linear machining apparatus having a machining head portion providing a machining head capable of linearly machining a long-length member along its free curved face form, and a first raw material feeding apparatus for feeding a long-length member in a first direction to said machining head portion, said three-dimensional linear machining apparatus performing a three-dimensional linear machining on a long-length member supplied to said machining head portion by said raw material feeding apparatus on the basis of a machining program, said three-dimensional linear machining apparatus further comprising:said first raw material feeding apparatus having a first and a second long-length member holding means; a first holding portion for fixedly holding an end portion of said long-length member in said first direction provided at said first long-length member holding means; said first holding portion having a plurality of holding members being free to open and close in a radial direction; said second long-length member holding means provided on said machining head portion side rather than said first long-length member holding means; a through hole through which said long-length member can pass and a second holding portion for movably holding said long-length member in said first direction in said through hole, both formed on said second long-length member holding means; said second holding portion having a plurality of holding members being free to open and close in a radial direction; and said first and second long-length member holding means provided free to be relatively close to and be relatively apart from each other in said first direction; and said three-dimensional linear machining apparatus having such a characteristic wherein said long-length member which said end portion is fixed by said first long-length member holding means can be moved to said machining head portion side in said through hole, being held by said second holding portion of said second long-length holding means.