Multipurpose spot welding gun with replaceable electrode holders
US5239155A · kind A · utility
Inventor
Key dates
| Filing date | Nov 19, 1992 |
| Grant date | Aug 24, 1993 |
| Priority date | — |
| Expiry date | Nov 19, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K11/315
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An adaptable, multipurpose spot welding gun having replaceable electrode holders with different configurations. The spot welding gun includes a pneumatic cylinder with a first electrode secured to the cylinder piston. A rotatable housing is mounted on the gun adjacent to the moveable electrode. An electrode holder is mounted on the housing. The electrode holder may extend parallel to the cylinder, carrying a second electrode spaced from the first electrode. Alternatively, the electrode holder may be arc-shaped, extending away in a direction perpendicular to the cylinder, then back to hold a second electrode adjacent to the first electrode. This holder is fastened to the housing in a manner allowing it to swing to the side to allow the holder to fit over intervening structure, then swung back to the operating position. Either electrode can be easily installed or removed. Electrical connections from a welder power supply and a switch are provided so that when the electrodes are placed with metal to be welded between them and the pneumatic cylinder is actuated, the electrodes press against the opposite sides of the metal and electrical flow between the electrodes cause a spot weld to …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.