66results about How to "Guarantee the same position" patented technology

The utility model relates to a welding device, in particular to a scraper chain welding device, which comprises a position changing machine, a chain conveying device, a chain conveying device and a chain conveying device, the welding bottom plate is provided with a plurality of welding grooves for welding; the positioning pin is arranged on the welding bottom plate, is positioned on one side of the scraping plate and is used for positioning the scraping plate; the pressing device is arranged on the welding bottom plate and is used for pressing the scraping plate; and the positioning device is arranged on one side of the welding groove and used for positioning the chain link, so that the scrapers are symmetrically located on the two sides of the chain link. According to the scraper chain welding device, positioning of the scraper is achieved through the positioning pin, the scraper is fixed through the pressing device, positioning of a chain link is achieved through the positioning device, welding of the two sides of the scraper is facilitated through the welding groove, automatic overturning of welding is achieved through the positioner, it can be guaranteed that the position of the scraper is not changed during welding, deformation is reduced, and the welding efficiency is improved. And meanwhile, a plurality of products can be welded, so that the welding efficiency is greatly improved.