Coil spring processing device
US10807215B2 · kind B2 · utility
1Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2018 |
| Grant date | Oct 20, 2020 |
| Priority date | — |
| Expiry date | May 1, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24C9/00
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A coil spring processing device includes an end positioning device, shot peening device, and controller. The end positioning device positions ends of a coil spring. The shot peening device includes a turntable mechanism, pressure mechanism, rotation mechanism which rotates the coil spring, and projection mechanism which projects shots. Holding mechanisms each include a lower shifting prevention jig and an upper shifting prevention jig. The controller stops a first holding mechanism and a second holding mechanism in rotation stop positions corresponding to end turn portions of the coil spring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.