Drive device for welding tongs
US7435924B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 5, 2003 |
| Grant date | Oct 14, 2008 |
| Priority date | — |
| Expiry date | Jun 17, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2025/2075
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A drive device for a pair of welding tongs having a pair of limbs, is arranged between the adjusting ends of the limbs, located opposite to the welding electrodes, for adjusting between a welding position and a standby position. In order to reduce its length, provide continuous control and monitoring, simplify the device and reduce noise, the drive device is provided with an electric motor-driven screw-thread drive with a rotating nut and a rotating spindle which is axially displaceable between an extended and a return position, the spindle being connected to an adjusting end of the limb. The drive device can be used as a main drive for a pair of welding tongs for the positioning of the limbs, or can be used as a secondary drive, for setting of a stopping position of the pair of welding tongs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.