| 摘要 |
<p>A device for final calibration of tapered tubular shafts (2), wherein a number of pressure rollers (29) are fitted to an annular support (23) radially with respect to an axis (24) of the annular support (23), are arranged about the axis (3) to define a calibration passage (31) for a tapered shaft (2), and are movable, with respect to the annular support (23) and under control of a cam pressure device (22) common to all the pressure rollers (29), in respective radial directions to vary the size of the passage (31) alongside variations in the section of the tapered tubular shaft (2) travelling through the passage (31).</p> |
