Thread forming method, thread forming device, and thread forming tool
US7552610B2 · kind B2 · utility
6Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2006 |
| Grant date | Jun 30, 2009 |
| Priority date | — |
| Expiry date | Nov 9, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K9/207
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A thread forming device 10a is provided with a thread forming tool 32 for forming a thread portion 14 at a frame 12, a first motor 38 for controlling to rotate the thread forming tool 32, and a second motor 40 for controlling to extract and retract the thread forming tool 32. Further, the thread forming tool 32 is provided with a pilot hole forming portion 86 provided with a spiral groove 80b at a front end portion 80 in a taper shape, and a thread forming portion 84 constituted continuously to the pilot hole forming portion 86 and provided with a spiral groove 84b.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.