| 摘要 |
<p>In the machine described for straightening tubes and rod-shaped bodies in general, at least one of the working rollers (7, 8) has a hydraulic cylinder-piston unit (25) for adjusting its position relative to a straightening axis (L). Advantageously, the portion (26) constituting the piston in this unit is attached to a bridge-like portion (35) of the load-bearing structure (34, 35) of the machine and the portion constituting the cylinder (27) is guided for sliding by another portion (3) of the structure. The guide frames which were mounted on the moving parts in the prior art can thus be eliminated and these parts can therefore now be made lighter, benefiting the performance of the machine, the load-bearing structure (34, 35) of which can also be reduced in weight and size.</p> |
