CUTTING TOOL FASTENING DEVICE Russian patent published in 1998 - IPC

FIELD: mechanical engineering. SUBSTANCE: spring-loaded tie-rod 3 with threaded end 4 coupled to threaded hole of noncircular head 19 of torsion 15 is positioned in body 1 with cylindrical projection 2 in device for fastening cutting tool 17. Other end 16 of torsion is made threaded and intended for coupling with cutting tool 17. Two wedge members 8 and 9 interacting with their wedge surfaces and capable of radial displacement are installed in window 7 of tie-rod 3. Key 30 intended for transmission of rotation to cutting tool 17 is positioned on torsion 15 between centering support 22 and threaded end 16. Device is provided with gaskets 38, 39 made of antifriction material and positioned between body 1 and extension piece 13, as well as between extension piece 13 and cutting tool 17. EFFECT: more effective construction. 4 cl, 3 dwg