Apparatus and method for accurate countersinking and rivet shaving for mechanical assembly operations
US6550118B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 2, 2001 |
| Grant date | Apr 22, 2003 |
| Priority date | — |
| Expiry date | Feb 2, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T409/30728
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The apparatus and method includes a spindle portion which holds a cutting tool. The drill is initially moved forwardly of a pressure foot portion of the apparatus. The pressure foot portion is then moved forwardly along with the spindle and drill to clamp the mechanical assembly. A thrust control arrangement produces a reduction of the thrust on the tool holder such that as the assembly is being clamped, the tool initially contacts the workpiece and then remains stationary while the pressure foot moves forward to complete clamp-up. The positions of the tip of the tool and the surface of the workpiece are recorded and compensation is then made to the apex position of the spindle stroke, using a previously determined reference position of the tool relative to the workpiece.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.