US 2004/0000182 A1 · Tool for locally forming a workpiece

Abstract

A forming or re-rounding machine has a pair of concentric inner and outer rings supported with a gap between the rings. The support of the rings provides for both axial and rotational movement. A can or shell having a section to be formed, or a damaged portion for re-rounding, is inserted into the gap. Hydraulic rams are mounted in a radial pattern into the outer edge of the inner ring and the inner edge of the outer ring, facing the gap. The inner and outer rings can be oriented so that the hydraulic rams in each ring can be directly opposed to the hydraulic rams in the opposing ring, or alternatively, can be offset from adjacent hydraulic rams in the opposing ring. In a vertically oriented embodiment, the forming or re-rounding machine has a pair of concentric rings suspended from a crane or I-beam support with a gap between the rings.

Claims18

Dependent claims

A machine for forming a workpiece, comprising:

an inner ring;
an outer ring concentric with and surrounding the inner ring about an axis to form a gap between the inner and outer rings, the gap for receiving the workpiece between the inner and outer rings;
at least a pair of hydraulic rams, at least one hydraulic ram mounted to each of the inner and outer rings so as to extend into the gap;
and
a support connected to each of the inner and outer rings for moving the inner and outer rings back and forth along the axis and rotating the inner and outer rings about the axis to align at least one of the at least a pair of hydraulic rams over an area of the workpiece.

2 more elements

Dependencies are inferred from the claim text.

Tool for locally forming a workpiece

Life of this patent

Tool for locally forming a workpiece

Life of this patent

Abstract

Claims18