Corner cam assembly and method of using the same

摘要

A corner cam assembly for use with a forming die and including a generally cylindrical inner cam component, an outer cam component, a base, and a retainer unit. Contoured contact surfaces on the inner and outer cam components enable the components to slide past one another during transitions between retracted and extended positions. Some features of the corner cam assembly include helical contact surfaces, guide features that control movement of the cam components, removable work steels, standardized cam components, and being able to form negative and other tight angles, multiple corners and edges, to name but a few.

主权项

1. A method of forming a metal work piece, comprising the steps of:
(a) providing a forming die with a cam assembly, wherein the cam assembly includes an inner cam component with a first metal forming portion, an outer cam component with a second metal forming portion, and a base that receives at least one of the inner or outer cam components and secures the cam assembly to the forming die; (b) exerting a force (F) on the inner cam component that urges the inner and outer cam components in a first axial direction and causes the cam assembly to transition from an unloading position to a forming position where the first and second metal forming portions line up on one side of the metal work piece and form a unitary metal forming portion, and exerting a spring force (S) on the outer cam component that urges the inner and outer cam components in a second axial direction that is opposite the first axial direction; and (c) forming the metal work piece with the forming die while the first and second metal forming portions maintain the unitary metal forming portion.