Hemming tool die assembly
US7204118B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 18, 2005 |
| Grant date | Apr 17, 2007 |
| Priority date | — |
| Expiry date | Nov 25, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53791
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A hemming die tool assembly for use with an anvil supporting a workpiece to be hemmed. A mounting plate is pivotally secured about an axis relative to the anvil while a vertical slide is slidably attached to the mounting plate along a first direction. An elongated channel is attached to the vertical slide so that the axis of the channel is transverse to the first direction. A hemming tool is secured to the vertical slide while a rocker arm is pivotally secured at one end to the mounting plate about the pivotal axis of the mounting plate while a second end of the rocker arm is longitudinally slidably mounted in the channel. A first cam assembly pivots the mounting plate between a retracted position, in which the hemming tool is positioned away from the workpiece, and an extended position in which the hemming tool overlies the workpiece. A second cam assembly pivots the rocker arm about its pivotal axis and, in doing so, vertically displaces the vertical slide relative to the mounting plate to perform the prehemming operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.