US 5,856,649 AGranted

Laser beam machine

AssigneeFanuc Corporation

InventorsEtsuo Yamazaki, Yoshinori Nakata, Kazuhiro Suzuki, Atsushi Mori

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Abstract

A laser beam machine capable of easily generating a machining path for cutting. A reading device reads a designation code for the shape of a hole to be cut, a size of the hole, a central position of the hole, and a start position and a final stop position of a front end point of a machining head. A smooth path-generating device generates a smooth path from the designation code for the shape of the hole, the size of the hole, the central position of the hole, and the start position and the final stop position, such that the overall path for the front end point of the machining head becomes a smooth one. A machining program-generating device generates a machining program based on the smooth path generated. According to the machining program, the machining head moves to cut the hole through a workpiece.

Claims13

Dependent claims

A laser beam machine for cutting a shape of a hole in a work piece according to a machining program, comprising:

a machining head having a front end point to emit a laser beam onto a workpiece;
reading means for reading said shape of said hole, a size of said hole, a central position of said hole, and a start position and a final stop position of said front end point of said machining head;
path-generating means for generating a machining path formed by segments and circular arcs adjoining one another, wherein said circular arcs are generated by multiplying said size of said hole by predetermined coefficients to approach said hole in an arc before cutting, cut said shape of said hole and move away from said hole in an arc after cutting, based on said shape of said hole, said size of said hole, said central position of said hole, said start position, and said final stop position read by said reading means, the machining head and the work piece being moved relative one another along the machining path under the control of the machining program;
and
machining program-generating means for generating said machining program based on said machining path.

2 more elements

Dependencies are inferred from the claim text.