Low force wire guide for EDM machine
US4791264A · kind A · utility
3Cited by
5References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 29, 1987 |
| Grant date | Dec 13, 1988 |
| Priority date | — |
| Expiry date | Apr 29, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23H7/265
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A wire guide directs a wire electrode from a refeed mechanism in an electrical discharge machine EDM to a workpiece. The wire guide has a tension cap and a fixed wire guide body ceramic insert defining a precision guide slot for the electrode and wherein the tension cap is biased by a flex ring mounted on separated ends of the tension cap and body to retain them together. The biased tension cap has tapered surfaces at its exit end which produce a compound tension force on the electrode for maintaining a low friction force thereon during the life of the wire guide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.