SU1704953A1 - Method and unit for machining slots - Google Patents

Abstract

The invention relates to the processing of materials by cutting and can be used in the processing of grooves in parts in all areas of mechanical engineering. The purpose of the invention is the expansion of technological capabilities by processing grooves with inclined parallel and non-parallel walls. The treatment is carried out with a milling cutter mounted on the mandrel 3. The milling disc is located between the body parts 10 and 11 with hydrostatic supports. The angle of inclination of the machined groove in the part 15 is determined by the angle of inclination of the bearing surfaces of the hydrostatic supports to the axis of the mandrel 3. This ensures the angle of inclination of the plane of rotation of the cutter to the axis of rotation of the mandrel around which the cutter rotates. In the process of tool rotation, the spherical bearing is constantly shifted relative to the bearing 6. 2 with the p. F-ly. 2 Il.

Description

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The invention of machining materials can be used in the machining of grooves in parts in all areas of mechanical engineering.

The purpose of the invention is the expansion of technological capabilities by processing grooves with inclined parallel and non-parallel walls.

FIG. 1 shows a flow chart of the location of the tool when the method is carried out; in fig. 2 - execution of the tool node.

The machining is carried out by a milling cutter 1. A milling cutter 1 is installed at an angle of 1 to the axis 2. During the machining of the walls of the grooves of the milling cutter, rotation around the axis 2 is reported. As a result, the milling tool rotates in a plane located at an angle of rotation mowing.

The tooling unit for milling grooves consists of a tool holder 3 mounted on bearings 4. A spherical support (bearing) 6 is fixed to the mandrel by means of a pin 5, which is connected to the spherical holders 8 and 9 through the curved key 7. (tool) 1. The disk (case) of the Cutter 1 is located between two body parts 10 and 11. On the end surfaces of which the pockets of 12 hydrostatic supports are located. Pockets 12 are connected by channels 13 to a hydraulic system (not shown) supplying the working fluid under pressure. The working fluid gets into the working cavity of the bearings 4 by means of seals 14. The angle of inclination p of the machined groove in the part 15 is maintained by fragile inclination of the supporting surfaces of the hydrostatic supports to the axis 2 of the mandrel 3, which provide the same angle of inclination of the plane of the milling disc and the plane of rotation around the axis cutters. The gaps D between the disk (body) of the milling cutter 1 and the supporting surfaces of the housings 10 and 11 are established during the assembly process.

The tool node works as follows.

Torque is transmitted from mandrel 3 via key 5. Spherical support 6,

key 7, sleeves 8 and 9 of Frese 1. When the workpiece 15 is fed to the tool (the feed direction is perpendicular to the plane of the drawing), the component cutting forces act on all the supporting elements of the assembly. Thus, the radial component of Py is the cutting power force taken by bearings 4 of the mandrel 3, the axial component of Px is hydrostatic support of bodies 10 and 11, and the tangential component is P (not shown, because

perpendicular to the plane of the drawing) - by bearings 4. During the rotation of the tool, the spherical bearing is constantly shifted relative to the bearing 6 around the circumference of its sphere.

After cutting one slot, the part is moved relative to the milling cutter 8 and a repeated cycle begins.

Claims (2)

1. A method of processing slots of a disk cutter, which is reported to have a rotation about an axis, differing in that. that, in order to expand technological capabilities by machining grooves with inclined parallel and non-parallel walls, the rotation of the cutter is carried out in a plane that is positioned at an angle to the axis of rotation. 2. A tooling unit for machining grooves comprising a mandrel with which a disk milling cutter is connected, characterized in that. that, in order to expand technological capabilities by processing grooves with inclined parallel and non-parallel walls, the assembly is provided with a housing, the mandrel is accommodated, while in the housing the slots with hydrostatic supports are made at an angle to the mandrel to accommodate the cutters in them, and the latter is connected to the mandrel by means of an inserted ball joint. 12 & I VYaYa 2 t7L  Hmr V6A /) 0Z53 / cpus.1