US 2003/0192867 A1Published application

Three dimensional linear machining apparatus

AssigneeYamazaki Mazak Corporation

InventorsTsunehiko Yamazaki, Naoomi Miyagawa, Toshihiko Inoue

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Abstract

At the time of execution of concurrent six-axes cylindrical interpolation instruction wherein a start point, an intermediate point, an end point and feed speed are instructed in a machining program PRO, a machining data computing portion 59 computes angular velocity of first, second, and third rotational axis directions and moving speed of first, second and third axial directions so as to correspond the feed speed of a torch with respect to a workpiece with the feed speed instructed in the machining program PRO, and the machining control portion 55 simultaneously controls the first, second and third axes and the first, second and third rotational axes on the basis of the angular velocity and the moving speed which are computed so as to rotate a chuck holding the workpiece and to move the torch, so that machining on the workpiece is executed.

Claims6

Dependent claims

Three dimensional linear machining apparatus having means for rotating, holding and driving, by which a workpiece can be held with a first axis as its center and said workpiece can be held so as to be freely angularly rotated, and driven in a first rotational axis direction with said first axis as its center, and a machining portion provided so as to be freely moved and driven in said first axial direction and second and third axial directions orthogonal thereto and so as to be freely angularly rotated and driven in second and third rotational axis directions with said second and third axes as their centers with respect to said workpiece held by said means for rotating, holding and driving, comprising:

means for computing axial speed, for computing angular velocity in said first, second and third rotational axis directions and moving speed in said first, second and third axial directions so as to correspond feed speed of said machining portion with respect to said workpiece with feed speed instructed in a machining program at the time of execution of concurrent six axes cylindrical interpolation instruction in which a start point, an intermediate point, an end point and feed speed are instructed in said machining program;
and
means for executing machining, for executing machining on said workpiece by simultaneously controlling said first, second and third axes and said first, second and third rotational axes on the basis of said angular velocity in said first, second and third rotational directions and said moving speed in said first, second and third axial directions, which are computed by said means for computing axial speed.

Three dimensional linear machining apparatus having unit for rotating, holding and driving, by which a workpiece can be held with a first axis as its center and said workpiece can be held so as to be freely angularly rotated, and driven in a first rotational axis direction with said first axis as its center, and a machining portion provided so as to be freely moved and driven in said first axial direction and second and third axial directions orthogonal thereto and so as to be freely angularly rotated and driven in second and third rotational axis directions with said second and third axes as their centers with respect to said workpiece held by said unit for rotating, holding and driving, comprising:

unit for computing axial speed, for computing angular velocity in said first, second and third rotational axis directions and moving speed in said first, second and third axial directions so as to correspond feed speed of said machining portion with respect to said workpiece with feed speed instructed in a machining program at the time of execution of concurrent six axes cylindrical interpolation instruction in which a start point, an intermediate point, an end point and feed speed are instructed in said machining program;
and
unit for executing machining, for executing machining on said workpiece by simultaneously controlling said first, second and third axes and said first, second and third rotational axes on the basis of said angular velocity in said first, second and third rotational directions and said moving speed in said first, second and third axial directions, which are computed by said unit for computing axial speed.

Dependencies are inferred from the claim text.

Facts

Application: 10/412,907Filed 14 Apr 2003
Priority: JP 2002-11391816 Apr 2002
Published: 16 Oct 2003
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

B23K 26/08
Working by laser beam, e.g. welding, cutting or boring: devices involving relative movement between laser beam and workpiece
B23K 26/0884
In at least two axial directions: in at least three axial directions, e.g. manipulators, robots
G05B 2219/39578
Robotics, robotics to robotics hand: axis wrist
G05B 2219/45041
Nc applications: laser cutting