TOOL HOLDER AND TOOL-FIXING METHOD USING A SHAPE MEMORY ALLOY

WIPO Patent Application WO/2011/071315

A2

Provided are a tool holder and a tool-fixing method using a shape memory alloy. The tool holder for fixing a tool comprises: a tool-mounting unit having a tool-fixing hole penetrating therethrough, wherein the tool-fixing hole has an inner diameter that is relatively smaller than the outer diameter of a shank unit of the tool; and at least one shape memory alloy ring inserted into a ring-fixing hole formed through the tool-mounting unit such that the ring-fixing hole has an inner diameter that is relatively larger than the tool-fixing hole. The size of the inner diameter of the tool-fixing hole forcibly varies by means of the transformation of the shape memory alloy ring caused by a heating source and a cooling source provided in the shape memory alloy ring, so as to clamp or unclamp the tool.

PARK, Jong Kweon (307dong 606ho, Expo Apt. Jeonmin-dong, Yuseong-gu, Daejeon 305-761, 305-761, KR)
박종권 (대전 유성구 전민동 엑스포아파트 307동 606호, 305-761 Daejeon, 305-761, KR)
SHIN, Woo Cheol (206dong 1701ho, Mimade Apt. 616, Gyochon-dong, Yuseong-gu, Daejeon 305-250, 305-250, KR)

KR2010/008768

June 16, 2011

December 08, 2010

Click for automatic bibliography generation  

KOREA INSTITUTE OF MACHINERY & MATERIALS (171 Jang-dong, Yuseong-gu, Daejeon 305-343, 305-343, KR)
한국기계연구원 (대전 유성구 장동 171, 305-343 Daejeon, 305-343, KR)
PARK, Jong Kweon (307dong 606ho, Expo Apt. Jeonmin-dong, Yuseong-gu, Daejeon 305-761, 305-761, KR)
박종권 (대전 유성구 전민동 엑스포아파트 307동 606호, 305-761 Daejeon, 305-761, KR)

B23B29/04; B23B29/06; B23B29/12

View/Download PDF      PDF Help

Previous Patent: PROCESSES FOR PREPARING CRYSTALLINE FORMS A AND B OF ILAPRAZOLE AND PROCESS FOR CONVERTING THE CRYST...

Next Patent: IMAGE-ENCODING APPARATUS AND METHOD, TRANSFORM-ENCODING APPARATUS AND METHOD, APPARATUS AND METHOD F...