Tube shearing apparatus
US4794834A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 15, 1987 |
| Grant date | Jan 3, 1989 |
| Priority date | — |
| Expiry date | May 15, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/7667
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A tube cutting apparatus for orbital shearing of tube stock in uniform lengths including a stationary die surrounding the tube stock placed adjacent an orbiting die of similar aperture, the orbiting die being rotatably mounted within an eccentric die holder which in turn is rotatably mounted on an axis offset from the stationary die with drive means for turning the die holder and causing the orbiting die to move in an orbiting path, and a two-section mandrel carried on an extendable ram which is removably insertable within the tube stock being cut, the first section being coaxially fixed to the ram while the second section has limited movement laterally relative to the first section, the second section having an inside diameter portion greater than the outside diameter of the ram and a elastic ring positioned between the second section and the ram to maintain the two sections in concentric alignment in the absence of outside forces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.