| 摘要 |
<p>The support has guide strips (15) inserted between two housing halves (4, 5). A curved guide curve (16) is formed in one of the strips. A guide bolt (21) is fixed in the curve at free ends (14) of outer stationary support arms (11, 12). A position of a middle piece (6) is adjusted relative to the distance between the middle piece and a rotation symmetric workpiece (2) by a sickle-shaped curved half shell (18). Positions of the strips are synchronously coordinately varied relative to each other in opposite directions by another sickle-shaped curved half shell (19).</p> |
