Tool for preparing tube ends for welding
US3999452A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 24, 1975 |
| Grant date | Dec 28, 1976 |
| Priority date | — |
| Expiry date | Jan 24, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/868
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A tool for preparing tube ends for welding comprising a rotary tool head connected to the drive shaft of an air motor driven angle drive unit, said tool head having a plurality of radially extending arms provided with inclined cutting edges operative, upon rotation of the tool head and axial advance thereof with respect to the tube, to chamfer or bevel the end of the tube for welding, said tool head further being provided with guide means for rotation of the tool head about the tube axis. One form of tool herein is further characterized in that the cutter carrying arms are radially adjustable for chamfering different sizes of tubes. Another form of tool herein is further characterized in that at least one of the cutters is indexable to a position wherein the cutting edge thereof is perpendicular to the axis of the tube to dress the end surface of the tube. Yet another form of the tool herein is further characterized in that the tool head guide means is firmly secured within the tube end and provides a guide bore along which the tool head is accurately guided for chamfering the ends of hard-to-cut tubes as of stainless steel or the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.