SU1546213A1 - Tool holder - Google Patents

Abstract

The invention relates to metal cutting and can be used, for example, when biting biconical holes. The aim of the invention is to reduce the time for adjusting the tool holder when biting biconical holes. The tool holder includes a housing 1 and a cutting block 4, between which a liner 7 is installed, mated with sections of cylindrical surfaces on opposite sides with mating surfaces 3 and 6, made respectively on the housing and the block. The block has two slots diametrically and offset along its axis, in which the cutters 13 and 14 are mounted. The block is fixed relative to the body by means of a nut 9 and a ring 11 with an inner conical surface 12, mounted on the body, in contact with the spherical surface 10, performed on the block. To adjust the position of the incisal block, it is rotated relative to the liner, and the latter is rotated relative to the body, while due to the rotation of the block relative to two axes, it is set to the required position to obtain the required size of the machining position. The working body of the machine, the carrier holder, moves relative to the axis of the workpiece at an angle equal to half the angle of the cone of the surfaces being machined. 2 hp ff, 5 ill.

Description

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Claims (3)

Claim 1. A tool holder comprising a housing with a portion of a cylindrical surface, the axis of which is perpendicular to its axis, a cutting unit with a tool holder, connected to the housing with a possibility of rotation about the axis of the said portion of the cylindrical surface, and a nut mounted on the housing for fixing the cutting block relative to the housing, characterized in that, in order to reduce the time to set up the holder when boring biconical holes, an additional block is made on the cutting unit an auxiliary tool socket located diametrically and offset along the axis of the block relative to the existing socket, the holder being provided with an insert with sections of cylindrical surfaces on opposite sides, one of which is mated to a portion of a cylindrical surface on the housing, and the other to a portion of a cylindrical surface, made on the cutter block, and between the nut and the cutter block a ring is inserted into the holder with an internal conical surface intended for interactions actions with a spherical surface made on the cutting unit. 2. Holder on π. 1, characterized in that, in order to improve the convenience of adjusting the position of the cutting tool, the latter is connected to the housing by means of springs inserted in the holder, designed to ensure constant contact of the sections of the cylindrical surfaces of the liner with the mating sections of the cylindrical surfaces on the housing and block. 3. The holder on π ·. 1, characterized in that in the cutting unit, housing, liner and nut made radial holes designed to accommodate them in the key rods. T546213 L-A FIG. I 1546 FIG. 5