TOOL FOR DIE FORGING OF CUP - SEMIFINISHED PRODUCT OF TRANSPORT VEHICLE WHEEL Russian patent published in 2006 - IPC B21K1/28 B21J13/02 

FIELD: plastic working of metals, possibly in forging shops of metallurgical and machine engineering plants for making automobile wheels and similar products.

SUBSTANCE: tool includes die with through round stepped hole having upper large-diameter step; punch mounted on slide of press and shaped part of knocking out member, both mounted with possibility of motion along axis of die. Tool also includes unit for stepwise regulation of bottom thickness and height of cup. Said unit includes clamping round stepped yoke secured to slide and embracing upper part of punch and also upper and lower spacing rings. Upper spacing ring is arranged between upper end of large-diameter step of yoke and press slide, lower spacing ring is arranged under shaped part of knocking out member. Upper step of die hole is cylindrical one, its diameter corresponds to outer diameter of yoke step turned downwards. Shaped part of knocking out member, upper and lower spacing rings are changeable ones.

EFFECT: enlarged manufacturing possibilities of tool due to possibility for making semi-finished products of wheels of different types and dimensions.

2 cl, 1 dwg