| 摘要 |
PCT No. PCT/EP90/01156 Sec. 371 Date Feb. 13, 1992 Sec. 102(e) Date Feb. 13, 1992 PCT Filed Jul. 14, 1990 PCT Pub. No. WO91/02615 PCT Pub. Date Mar. 7, 1991.A tool, in particular a fine-turning boring bar, for use in machine-tools, includes a shank part (16) which can be coupled to a rotating tool spindle, a head part (10) which is secured to the shank part (16) so as to remain fixed during rotation and which can be adjusted transversely with respect to the shank part (16), and a cutting support (20) which can be radially adjusted for coarse positioning purposes. Cylindrical fitting pins (28, 30) provided with radial face grooves (36, 38) are formed facing each other on the shank part (16) and the head part (10). A cross-coupling element (12) arranged between the front ends of the fitting pins (28, 30) has radially mobile pairs of claws (40, 42) which extend axially from both sides and which engage in mutually perpendicular face grooves (36, 38) in the fitting pins (28, 30). The two fitting pins (28, 30) also engage in mutually eccentric fitting holes (32, 34) of an eccentric sleeve (18) which can rotate with respect to the head part (10) and the shank part (16). The head part (10) and the shank part (16) are clamped temporarily, with radial play, by the cross-coupling element (12) and the eccentric sleeve (18) and then interconnected by means of a clamping anchor (14) which passes through the bore holes in the shank part (16), rotates in a thread (58) in the head part (10) and rests against an abutment (62, 64, 66) in the region of the shank part.
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