US Patent: 4,198,790
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| Method for Finishing Spherical Rollers
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Patentee:
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| Paul Gruber (exact or similar names) - Cincinnati, Hamilton County, OH |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jan. 11, 1979 |
| Granted: |
Apr. 22, 1980 |
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Joel Havens
"Vintage Machinery" entry for Cincinnati Milling Machine Co.
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Description: |
| Abstract:
A grinding method for grinding spherical rollers is disclosed, wherein the roller has a spherical main diameter and a spherical end form ground thereon, and both spherical forms are ground on the same fixturing set-up. The workpiece is carried on a pair of locating shoes and the pre-ground flat end is driven with a magnetic face driver. A grinding wheel spindle carries first and second wheel forms for forming the roller spherical surfaces, and the surfaces are ground sequentially by feeding the first spherical form radially into the workpiece to grind the diameter, and thereafter axially shifting the wheel spindle to present the second wheel form in position where it is radially fed into the workpiece to grind the spherical end form of the roller. |
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