CLAMPING DEVICE

摘要

Provided is a clamping device such that improvement can be made in the degree of freedom of machining with respect to a workpiece and the degree of freedom in dealing with the shape of the workpiece. This clamping device (1) serves to secure the workpiece, and is provided with a frame body (11) which is capable of surrounding the workpiece; a first grip section (12) which is disposed on an inner surface of the frame body (11) and has a plurality of protrusions (123) that project inward; a second grip section (13) which is disposed on a different inner surface of the frame body (11) and has a plurality of protrusions (133) that project inward, said different inner surface facing the inner surface whereon the first grip section (12) is disposed; and a grip section driving section (14) which moves the first grip section (12) and the second grip section (13) in a direction approaching each other or in a direction moving away from each other.