| 摘要 |
Disclosed is a clamping device for a lifting unit. The clamping device for a lifting unit enables the lifting unit to stably slide along a guide rail and stably maintains a fixed state of the guide rail fixed to a predetermined position. According to an embodiment of the present invention, the clamping device for the lifting unit includes: a pad unit facing the guide rail, wherein the lifting unit on which a machining device is mounted ascends or descends along a pair of the guide rails; and a piston unit locating a pad unit to be in contact with the guide rail in order for the outer circumference of the guide rail and the pad unit to be relatively moved when the lifting unit moves to a predetermined position along the guide rail, wherein the piston unit maintains the fixed state of the lifting unit by pressing the pad unit to the guide rail when the lifting unit is stopped at the predetermined position. |
