Metal deforming – By use of tool acting during relative rotation between tool... – During rotation of work
Patent
1986-11-10
1987-12-15
Crane, Daniel C.
Metal deforming
By use of tool acting during relative rotation between tool...
During rotation of work
72 95, B21H 500
Patent
active
047124083
ABSTRACT:
A machine (10) disclosed incorporates spline rolling apparatus (12) having a pair of racks (30) of a construction that permits precise rolling of coarse pitch splines (45). Each rack (30) includes a toothed forming face (32) and a flat base surface (58) as well as a flat side support surface (60) that cooperatively provide accurate location of the rack during the spline rolling. Teeth (56) spaced along the toothed forming face have tapered ends such that a rotatably supported workpiece (14) which is moved axially between the racks (30) during reciprocal driving thereof is progressively formed with the coarse pitch splines (45) without excessively loading the teeth. Both straight and curved tapers are disclosed, preferably on both ends of each tooth, and the teeth are disclosed as being both perpendicular to the direction of the rack to roll straight splines as well as angularly with respect thereto to roll helical splines. A drive mechanism for slides (27) on which the racks (30) are carried includes a pair of rotary hydraulic motors (82) which drive a gear drive train (86) for moving the rack slides.
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Anderson-Cook Inc.
Crane Daniel C.
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