Claims
- 1. Apparatus for generating a lobular polygonal form comprising a first drive shaft, a tool holder, a universal coupling joining said first drive shaft and said tool holder, a tubular drive shaft surrounding said first drive shaft, a member driven by said tubular drive shaft and having a bore eccentric to the axis of said tubular drive shaft for receiving said tool holder so that said tool holder rotates in said bore and also orbits about the axis of said tubular drive shaft to trace said polygonal form, and means providing a relative speed of rotation between said tubular drive shaft and said first drive shaft that is a whole integer.
- 2. Apparatus according to claim 1 in which said member includes a removable member having said eccentric bore.
- 3. Apparatus for generating a lobular polygonal form comprising a sun gear, an input shaft rotatable in said sun gear and having driving means thereon, an output member having a tool holder, a planetary gear orbitable about said sun gear and in mesh therewith, an eccentric in said output member and movable therein, and means rotatable in said driving means and keyed to said eccentric and said planetary gear, the gear ratio of said sun and planetary gears being a whole integer, whereby rotation of the input shaft rotates and orbits the planetary gear around the sun gear to drive said output member and tool holder along a reciprocating and rotatable path that traces said polygonal form.
- 4. Apparatus according to claim 3 in which said eccentric is a removable member in said output member.
- 5. Apparatus according to claim 3 in which said eccentric is rotatable in a block, said block being slidable in said output member, said driving means and output member being keyed together for joint rotation and for relative sliding movement.
CROSS-REFERENCE TO RELATED CASE
This application is a continuation-in-part of my copending application Ser. No. 122,412, filed Feb. 19, 1980 and now abandoned.
US Referenced Citations (13)
Non-Patent Literature Citations (2)
Entry |
American Machinist, May 10, 1954, pp. 153-155, Contour Grinding by a Unique Mechanism. |
Fortuna, Polygon Grinding Machines Model AFD . . . P. |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
122412 |
Feb 1980 |
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