CONTRIVANCE TO MANUFACTURE PARTS OF ELECTRIC DEVICES Russian patent published in 2001 - IPC

FIELD: electrical engineering, low-voltage equipment. SUBSTANCE: invention can be used for manufacture of parts of electric devices, specifically, for welding of straps containing silver of mobile bridge contacts of contactors and starters. Contrivance to manufacture parts of electric devices is made in the form of frame rectangular in plan, having variable thickness, produced from heat-resistant material with longitudinal groove of variable depth cut along length to accommodate contact bridge of device and central working cut-out in bottom part of groove on one end of frame to weld strap made of metal or high-conductance alloy to contact bridge of device. Working cut-out has configuration and dimensions corresponding to those of strap and groove at end of frame most distant from working cut-out has greater depth than it has over the rest of length of frame. Frame in zone of location of section of groove of greater depth has thickness exceeding thickness of frame of section of location of working cut-out. Thickness of bottom part of groove in zone of location of working cut-out does not exceed thickness of strap and height of walls of groove at least in zone of location of working cut-out does not exceed height of longitudinal walls of contact bridge. EFFECT: increased convenience for welding with simultaneous rise of precision and reliability of registration of welded parts and increased labor productivity. 1 cl, 7 dwg