DEVICE FOR CHUCKING A TOOL USING A SHAPE MEMORY ALLOY, CAPABLE OF EASILY REPLACING THE TOOL

摘要

PURPOSE: A device for chucking a tool using a shape memory alloy is provided to easily replace and mount the tool and to prevent the tool from wheeling in a precision process.;CONSTITUTION: A device for chucking a tool using a shape memory alloy comprises a rotary shaft(10), a collet(20), a fixing nut(30), and a shape memory alloy holder(40). The rotary shaft has a hollow shape and a male screw thread(12) is formed to one side of the outer circumference. The collet has a hollow shape and a plurality of slits(22), a flange(24), and a V-shaped slope groove(26) are formed to one side. A protrusion(32) is formed inside the fixing nut and a female screw thread(34) is formed to be coupled with the male screw thread. The collet is inserted to the shape memory alloy holder.;COPYRIGHT KIPO 2013