SCREW ENGAGEMENT TYPE CLAMP DEVICE, CLAMP SYSTEM, AND FLUID PRESSURE ACTUATOR

摘要

A piston (21) is inserted between a cylinder hole (20) and a guide tube (15) so as to be able to rotate and to reciprocate in the axis direction, the cylinder hole (20) being provided in a housing (5), the guide tube (15) being provided at the center portion of the housing (5) on the tip side thereof. A ball screw mechanism (28) is provided between the piston (21) and the housing (5). An output rod (30) is inserted in a tube hole (29) of the guide tube (15) and a tube hole (24) of the piston (21) so as to be able to rotate and to move in the axis direction. The input section (41) of the output rod (30) is connected to the output section (42) of the piston (21) so as to be able to rotate and to transmit power. An engaging bolt (50) provided to the tip of the output rod (30) is configured so that the engaging bolt (50) is able to engage with a female thread hole (12) of an object (10) to be affixed.