GB468326A - Improvements in or relating to means for securing milling cutters or other rotating metal-cutting tools to spindles - Google Patents

Abstract

468,326. Securing milling - cutters on shafts. JERECZEK, V. Oct. 26, 1936, Nos. 29075 and 29076. Convention dates, Oct. 24, 1935 and Oct. 17, 1936. [Class 80 (ii)] [Also in Group XXII] Milling-cutters. such as 5 or other tools are secured on an arbor 1 by means of series of driving pins 8 which connect the cutter and spacing sleeves 6 to an enlarged end 2 at one end of the arbor and to a bush 3 slidably keved at 4 to the other end of the arbor. A nut 7 secures the cutters and spacing members against end play. Three equi-spaced driving pins may be located at each end of the cutter or in some cases one pin may be used for each tooth of the cutter, the number of pins depending on the torque to be transmitted. A composite cutter 9 may be mounted in a similar way, Fig. 1, or in some cases the pins may project completely through such a cutter. For mounting a large cutter 11, Fig. 1, the pins may be arranged at a greater radius and may connect the cutter to a ring 12 notched at one end to engage a rib 13 on the spindle end 1<1>. In a modification, Fig. 6, the arbor is connected to the milling spindle by a flange 2<1> and is slidably keyed at the other end to a bush 3. The driving connections between the cutter, the spacing sleeves, and the bush are effected by plates 15 having wedge-like faces of cylindrical form engaging corresponding undercut notches in the members to be connected. The flange 2<1> has projections 16 engaging in the notches of the adjacent sleeve. In another modification, Fig. 8, the plates 15 are retained by a ring 18 which may bear on a step 15<1> or engage in a groove in the driving pieces.