Method and apparatus for orienting the wire guidance heads on spark erosion cutting equipment for eroding with a great wire slope
First Claim
Patent Images
1. Spark erosion apparatus to cut, by spark erosion, a deformation into a workpiece (2) havinga cutting wire electrode (1);
- an upper wire guidance head (3);
a lower wire guidance head (4),the workpiece (2) being positioned between the upper and lower guidance heads;
an upper support arm (5) supporting the upper guidance head and being movable, with respect to the workpiece, in an upper coordinate plane;
a lower support arm (6) supporting the lower guidance head and being movable, with respect to the workpiece, in a lower coordinate plane independently of the upper support arm;
and comprising, in accordance with the inventionat least one gimbal suspension (11,
12) secured to and movably, tiltably securing at least one guidance head (3,
4) on, and with respect to the associated support arm (5,
6) and having orthogonal gimbal axes, said orthogonal axes intersecting at a transition point;
means (21) secured to the at least one head and guiding the wire in a path between the outside of the at least one head remote from the workpiece and through said transition point;
and independently controllable drive means (14,
18) coupled to said at least one gimbal suspension and individually controlling the position of the at least one head with respect to each one of the respective orthogonal gimbal axes.
1 Assignment
0 Petitions
Accused Products
Abstract
To permit machining of workpieces on spark erosion cutting equipment with large angles of inclination, the guidance heads which guide the wire electrode in the cutting zone with respect to the workpiece are pivotably arranged and controlled, by being mounted on individual gimbal suspensions so that it is possible to provide for a controllable slope angle up to large amounts. Individual drive motors control movement about the respective gimbal axes.
204 Citations
10 Claims
-
1. Spark erosion apparatus to cut, by spark erosion, a deformation into a workpiece (2) having
a cutting wire electrode (1); -
an upper wire guidance head (3); a lower wire guidance head (4), the workpiece (2) being positioned between the upper and lower guidance heads; an upper support arm (5) supporting the upper guidance head and being movable, with respect to the workpiece, in an upper coordinate plane; a lower support arm (6) supporting the lower guidance head and being movable, with respect to the workpiece, in a lower coordinate plane independently of the upper support arm; and comprising, in accordance with the invention at least one gimbal suspension (11,
12) secured to and movably, tiltably securing at least one guidance head (3,
4) on, and with respect to the associated support arm (5,
6) and having orthogonal gimbal axes, said orthogonal axes intersecting at a transition point;means (21) secured to the at least one head and guiding the wire in a path between the outside of the at least one head remote from the workpiece and through said transition point; and independently controllable drive means (14,
18) coupled to said at least one gimbal suspension and individually controlling the position of the at least one head with respect to each one of the respective orthogonal gimbal axes. - View Dependent Claims (2, 3)
-
-
4. Spark erosion apparatus to cut, by spark erosion, a deformation into a workpiece (2) having
a cutting wire electrode (1); -
an upper wire guidance head (3); a lower wire guidance head (4), the workpiece (2) being positioned between the upper and lower guidance heads; an upper support arm (5) supporting the upper guidance head and being movable, with respect to the workpiece, in an upper coordinate plane; a lower support arm (6) supporting the lower guidance head and being movable, with respect to the workpiece, in a lower coordinate plane independently of the upper support arm; and comprising, in accordance with the invention two gimbal suspensions (11,
12), secured respectively to the upper and lower guidance heads (3,
4) and to said respective heads to movably tiltably couple the respective heads to the respective support arms (5,
6), said gimbal suspensions each having orthogonal gimbal axes which intersect at a transition point;means (21) secured to the respective heads and guiding the wire in a path between the outside of the heads, remote from said workpiece, and through said transition point; and individually controllable drive means (14,
18) coupled to each of the gimbal suspensions, and individually controlling the position of the respective head with respect to each one of the respective orthogonal gimbal axes. - View Dependent Claims (5, 6, 7, 8)
-
-
10. Spark erosion apparatus to cut, by spark erosion, a deformation into a workpiece (2) having
a cutting wire electrode (1); -
an upper wire guidance head (3); a lower wire guidance head (4), the workpiece (2) being positioned between the upper and lower guidance heads; an upper support arm (5) supporting the upper guidance head and being movable, with respect to the workpiece, in an upper coordinate plane; a lower support arm (6) supporting the lower guidance head and being movable, with respect to the workpiece, in a lower coordinate plane independently of the upper support arm; and comprising, in accordance with the invention at least one gimbal suspension (11,
12) secured to and movably, tiltably securing at least one guidance head (3,
4) on, and with respect to the associated support arm (5,
6) and having orthogonal gimbal axes, said orthogonal axes intersecting at a transition point;means (21) secured to the at least one head and guiding the wire in a path between the outside of the at least one head remote from the workpiece and through said transition point; and individually controllable drive means (14,
18) coupled to said gimbal suspensions, comprising electric motor means (9,
10) and flexible push/pull cable means connecting the motor means to the at least one head and providing for movement of said at least one head about the respective gimbal axes, for individually controlling the position of the at least one head with respect to each one of the respective orthogonal gimbal axes. - View Dependent Claims (9)
-
Specification