| 摘要 |
1. Device for straightening a hollow cylindrical workpiece (7) characterised by holding devices (6, 46) for holding the workpiece (7) at both ends, one of which is in the form of a rotatable gripping head (headstock), at least one dial gauge (49) which can be placed against the workpiece (7), a drive (9, 10) to rotate the rotatable holding device (6) which is in the form of gripping head, a tool head (24) which is arranged so that it can be advanced and adjusted in axial the direction of the workpiece (7) in its interior and which has at least one pressing piece (28) which can be directed against the inner wall of the workpiece (7) with an oscillating movement, and an adjustable control device (13-19) for altering the frequency of oscillation of the pressing piece (28) and thereby the shaping operation. |
