| 摘要 |
<p>The rotary chuck has a flat spiral for tensioning motor drives without machine spindle standstill. The drive teeth of the flat spiral ring (4) are on the rear side of the chuck body (1). The drive pinion of the tensioning motor (7) engages in the free teeth with an automatic feed mechanism. Apart from a motor drive (7), the spiral ring can be selectively operated by hand via the drive by means of a square tang chuck key. The drive serves as an intermediate gear with tension motor drives. A double bevel gear or a bevel-spur combination transmit the drive moment of the tension motor (7) with the automatic feed mechanism.</p> |
