| 摘要 |
PURPOSE:To stabilize the supporting condition of a work, by supporting the work with two sets of radial blades in two places at one position neighboring to a cutter and the other position separating from the cutter. CONSTITUTION:Blades 12, 13 are connected to pistons 43, 44 of a hydraulic cylinder device 15 through a link mechanism consisting of members 30, 31 and rods 34, 35 or the like, and force is applied to the blades 12, 13 by hydraulic power. Pressing contact force to a work W can be changed by a hydraulic pressure regulating valve. A position of the blade is easily adjusted in response to any change of a diameter of the work by utilizing the hydraulic power, and the prescribed pressing contact force can be obtained by the hydraulic power. |
