US Patent: 3,757,638
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| Five-Axis Shaper
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Patentee:
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| Joseph Martin (exact or similar names) - Bayside, NY |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Apr. 12, 1972 |
| Granted: |
Sep. 11, 1973 |
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Joel Havens
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Description: |
| H. Gibner Lehmann et al.-patent attorneys
Abstract
A heavy-duty combination vertical and horizontal metal-cutting shaper constituted of a machine bed provided at its back with a massive upright column having two vertical ways traversed by a saddle. The machine bed has ways on which a second saddle travels, the latter in turn mounting a carriage which supports a turnable table. On the saddle supported by the column there is a swivel head that carries an elongate housing, in which reciprocate a heavy counterweight-type slider and a ram, respectively movable in adjoining parallel paths. The ram, which carries the tool bit, is coupled to the slider by a drive mechanism comprising racks and gears. The slider is driven through a Scotch yoke and set of elliptical gears whereby it has a slow movement in one direction and a rapid movement in the opposite direction. Between the gears and Scotch yoke a shaft extends, disposed on the axis of the swivel head whereby the latter can be adjustably turned without affecting the drive mechanism of the slider and ram. The machine thus has two axes associated with the column, and three axes associated with the bed, making a total of five altogether. The slider, comprising in effect a counterweight, eliminates excessive vibrations at the working speeds.
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