Metal deforming – With use of control means energized in response to activator... – Metal deforming by use of roller or roller-like tool element
Patent
1976-11-15
1977-08-09
Gilden, Leon
Metal deforming
With use of control means energized in response to activator...
Metal deforming by use of roller or roller-like tool element
29159R, 72 82, 72 91, 113116D, B21B 3700, B21D 2214
Patent
active
040402819
ABSTRACT:
An apparatus for manufacturing split pulleys includes a frame and a spindle assembly supported by the frame having an upper spindle and a lower spindle assembly for supporting for rotation a blank to be split therebetween. The lower spindle assembly includes a clamping mechanism having a screw means for drawing the upper spindle toward the lower spindle assembly and the lower spindle assembly toward the upper spindle to clamp the blank to be split therebetween. Bearing means are disposed between the frame and the spindle assembly for supporting the spindle assembly for rotation. The clamping means are operative to exert a clamping force between the upper spindle and the lower spindle assembly which is isolated from the frame and the bearing means to clamp a blank therebetween. A pair of rotatable tools are provided each of which has an axis of rotation parallel to the axis of rotation of the spindle assembly and each of which is associated with a motor means to effect rotation of the tools. The tools are operable to move relative to the blank supported by the spindle assembly to effect sequential engagement between the tools and the peripheral edge of the blank to sequentially split and form the blank. Control means is provided for controlling the speed of the spindle assembly to match the peripheral speed of the rotating blank supported by the spindle assembly with the peripheral speed of the tool with which it is desired to engage the blank. The control means senses the peripheral speed of the first tool to be engaged with the rotating blank and controls the speed of the spindle assembly in response to the peripheral speed of the first tool and subsequently senses the peripheral speed of the second tool to be engaged with the blank and subsequently controls the speed of the spindle assembly in response to the peripheral speed of the second tool. The speed control of the peripheral speed of the tools and the rotating blank matches the peripheral speed of the tools with the peripheral speed of the rotating blank to prevent skidding of the tools upon initial engagement of the tool with the blank.
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patent: 3823591 (1974-07-01), Schroder et al.
patent: 3828619 (1974-08-01), Frost et al.
patent: 3831414 (1974-08-01), Haswell
patent: 3893818 (1975-07-01), Mickus
Eaton Corporation
Gilden Leon
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