| 摘要 |
A two wheel-lapping machine for surface-, plane-parallel-, and external plain or cylindrical- lapping, with two lapping- or working- wheels, which are mounted on one lapping wheel carrier, respectively, of which the upper lapping wheel carrier is mounted on the lower end of a main spindle and the lower lapping wheel carrier is mounted on the upper end of a main shaft, the latter being rotatably supportd in the machine bed; wherein the main spindle is formed as a piston and is axially displaceable with the piston in a cylinder, with the cylinder being rotatable in a slide, and with the slide being horizontally displaceably mounted in a frame or portal, the latter being rigidly arranged at a distance above the machine bed by means of several portal supports.
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