US 4,232,575 A · Arrangement for punching out circular blanks

Abstract

An arrangement for notching or slotting circular blanks so as to produce stacks of rotor and/or stator laminations for electric machines. At least one slotting machine is provided which in a first direction is adjustable radially with respect to a spatially fixed axis of rotation of a blank support table by way of a separate adjusting drive. The support table for the blanks, constructed as an indexing apparatus, may be driven by a numerically controlled adjusting drive. The at least one slotting machine is movable in a second direction at right angles to the first direction by way of a further adjusting drive. The stacks of lamination produced by the punching arrangement may include spiral slots or notches as well as oblique slots or notches enabling the production of special motors having a cone or tapered armature.

Claims17

Dependent claims

An arrangement for notching circular blanks, the arrangement comprising at least one notching machine, a rotatably mounted table means for supporting the blanks at the notching machine, a feeding and removing means, and an adjusting drive means for adjusting the notching machine in a first direction of movement radially with respect to a spatially fixed axis of rotation of the supporting table means, characterized in that an additional adjusting means is provided for selectively driving the supporting table means, in that means are provided for enabling a relative movement between the supporting table means and the at least one notching machine in a second direction of movement at a right angle to the first direction of movement, and in that further means are provided for operating said feeding and removing device.

Dependencies are inferred from the claim text.

Arrangement for punching out circular blanks

Life of this patent

Arrangement for punching out circular blanks

Life of this patent

Abstract

Claims17