Motor driven resistance spot welding gun
US7067768B2 · kind B2 · utility
8Cited by
10References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 17, 2002 |
| Grant date | Jun 27, 2006 |
| Priority date | — |
| Expiry date | Jun 19, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K11/317
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A motor-driven welding gun has a servomotor for displacing a movable electrode tip toward and away from a fixed electrode tip. The servomotor has a motor housing with a copper pipe which is inserted therein when the motor housing is cast. The copper pipe provides a coolant passage in the motor housing for supplying a coolant therethrough. When the coolant passage is supplied with the coolant, the motor housing is forcibly cooled, reducing the amount of heat generated by the servomotor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.