Rack assembly for forming splines in thin-wall member

Details Rack assembly for forming splines in thin-wall member Rack assembly for forming splines in thin-wall member

1986-05-12

1988-03-08

Crane, Daniel C.

Metal deforming

By use of tool acting during relative rotation between tool...

During rotation of work

B21D 1704, B21H 500

Patent

active

047292334

ABSTRACT:
An apparatus (10) and die assembly (26,30) for forming a splined power transmission member from a thin-walled blank. The apparatus (10) comprises a pair of die assemblies (26,30), each including a supporting frame (28), first (42) and second (44) die bodies independently mounted on the supporting frame (28) in end-to-end coaxial relationship with each other, with rough (46) and finish (48) spline-forming surfaces formed on the first (42) and second (44) die bodies, respectively. The pair of die assemblies (26,30) are supported with the spline-forming surfaces of the respective die bodies (42,44) in spaced, opposed, parallel relationship to each other. A power drive mechanism sequentially moves the pair of die assemblies (26,30) in opposed directions. The power drive means effectuates a rough spline-forming stroke and then returns the die assemblies (26,30) to the neutral position. Subsequently, there is a finish spline-forming stroke and then return to the neutral position.

REFERENCES:
patent: 236085 (1880-12-01), Reynolds
patent: 1266402 (1918-05-01), Canda
patent: 3214951 (1965-11-01), McCardell
patent: 3982415 (1976-09-01), Killop
patent: 4045988 (1977-09-01), Anderson
patent: 4206535 (1980-06-01), Roth

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