Adjustable workholding jaw assemblies
US6568694B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Jul 12, 2002 |
| Grant date | May 27, 2003 |
| Priority date | — |
| Expiry date | Jul 12, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T279/26
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A combination of two or more jaw assemblies for mounting onto a self-centering power chuck to move an irregular workpiece to the axial centerline of the power chuck after it has been clamped. Each jaw assembly has a independent hydraulic system which, when activated, reduces the length of the jaw assembly, thereby moving the workpiece clamped in the power chuck. The imperfect pipe's average centerline can be moved to any location within the combined adjustable range of all the jaw assemblies. Each jaw assembly consists of a base jaw that is affixed to the power chuck, a connecting block that moves when the hydraulic system is actuated, a piston, a cylinder, and an interchangeable swivel insert with a serrated gripping surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.