Method for manufacturing a constructed camshaft
OwnerJoerg Leihkauf, Jirka Heinrichinventors
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Abstract
The invention relates to a method for manufacturing a constructed camshaft starting from a tube into which a plurality of noncircumferential depressions, which are oriented parallel to the longitudinal axis and are transverse with respect to the longitudinal axis, are pressed, and separately prefabricated cams are attached to the tube. In this context, the pressing-in of the depressions and the attachment of the cam rings to the tube take place in one working step.
Claims14
A method for manufacturing a constructed camshaft starting from a tube into which a plurality of noncircumferential depressions, which are oriented parallel to the longitudinal axis and are transverse with respect to the longitudinal axis, are pressed, and separately prefabricated cams are attached to the tube, wherein the pressing-in of the depressions and the attachment of the cam rings to the tube take place in one working step.
A device for manufacturing a constructed cam shaft, comprising a hydroforming tool which has an upper tool and a lower tool and axially movable sealing dies, wherein shaping dies, which can be moved radially with respect to the axis of the tube and as far as into the cavity formed by the closed tool, are arranged in at least one of the upper tool and the lower tool.
Dependencies are inferred from the claim text.