JIG SYSTEM HAVING CLAMP DEVICE

摘要

The present invention relates to a jig apparatus with a clamp device. The purpose of the present invention is to provide a jig apparatus which can stably maintain the clamping state of a clamping device even though a spindle is separated from a driving shaft upon completion of clamping a workpiece. To achieve the above purpose, the jig apparatus comprises: a driven bevel gear which receives rotational power through a driving shaft and a driving bevel gear; and a clamp device including a taper rod screwed to the driven bevel gear in order to move a taper rod such that a gripper can clamp a workpiece while moving in an axial direction during the rotation of the driven bevel gear. In the provided jig apparatus with a clamp device, angles (β_1, β_2) of both inclination surfaces are formed differently from each other on a screw thread of a clamping rod combined with a screw thread of the driven bevel gear such that the screw thread of the clamping rod can have asymmetric structure on the cross section thereof.