| 摘要 |
PURPOSE: A clamping device for pipes is provided to facilitate the manufacturing of a pipe with a back bar by clamping the back bar protruding from a base member using a fixing groove. CONSTITUTION: A clamping device for pipes comprises an upper arm (20), a lifting member (22), and a lower arm (30). The lifting member vertically penetrates the center of the upper arm to perform a lifting operation in the rotation direction. The fixing convex part (32) on the top of the lower arm is curved at a predetermined radius. A concave back bar fixing groove (34) is formed on a part of the fixing convex part at a predetermined depth. |
