RU126646U1 - MILLING COMBINATION DISC TRIPLE-SIDED - Google Patents

Abstract

A three-sided disk milling cutter containing multidirectional and radially arranged multifaceted carbide inserts fixed with screws, characterized in that it is provided with lateral fixing elements in the form of a disk with a hole for fixing them on the mill body and basing a polyhedral carbide cutting insert, wherein said cutting the plates are made with holes for the passage of screws through them and are mounted on the cutter body, which is made with sockets located at two angles with the formation of two base surfaces for basing the multifaceted carbide cutting insert and providing them with an end mill, the two mentioned base surfaces being formed by the bottom of the socket and its plane and arranged so that the normal to this plane forms the angle of intersection with the axis of the mill in the direction corresponding to the position of the polyhedral carbide cutting inserts, and the third base surface for basing the polyhedral carbide plate is formed by the aforementioned disk.

Description

The claimed utility model relates to the field of engineering, in particular, to the processing of materials by cutting.

Three-sided and double-sided disc mills with mechanical fastening of multifaceted carbide inserts are known from the existing level of technology [GOST 28437-90; p. 1.4].

Also known are various types of milling cutters with mechanical fastening of multi-faceted carbide inserts. For example, milling cutters with multidirectional cutting edges [GB 1396382, V23C 5/24, 06/04/1975] are equipped with square carbide inserts whose front surface does not lie in the radial plane of the milling cutter. The plates are mounted in the cutter body using wedges and screws passing through them, screwed into the cutter body.

The disadvantage of this technical solution is that if the cutter is equipped with radially spaced polyhedral carbide inserts with multidirectional cutting edges, the transition to a simpler and more reliable way of fastening the inserts in the cutter body with a screw through the hole cannot be realized due to the impossibility of the cutting tool approaching the cutter in the processing zone of the socket under the plate.

The problem to which the claimed utility model is directed is to create a triangular disc milling cutter, the design of which provides the use of multidirectional radially spaced polyhedral carbide inserts fixed in the cutter body with a screw through the hole.

This problem is solved due to the fact that the milling cutter is a triangular disk assembly, containing multidirectional and radially spaced multi-faceted carbide cutting inserts, fixed with screws, equipped with lateral locking elements in the form of a disk with a hole for fixing them on the cutter body and basing the multi-faceted carbide cutting insert, wherein said cutting inserts are made with holes for passing screws through them and are mounted on the cutter body, which is made with sockets, located at two angles with the formation of two base surfaces for basing the multifaceted carbide cutting insert and providing them with an end mill, the two mentioned base surfaces being formed by the bottom of the nest and its plane and located so that the normal to this plane forms the angle of intersection with the axis of the cutter in the direction corresponding to the position of the polyhedral carbide cutting inserts, and the third base surface for basing the polyhedral carbide insert is formed by said disco .

The technical result provided by the given set of features is the possibility of creating a milling cutter of a triangular disk assembly equipped with multidirectional and radially spaced polyhedral carbide inserts, fixed with screws passing through the holes in them in the mill body.

The essence of the utility model is illustrated by drawings, which depict:

figure 1 is a General view of the milling cutter assembly disk tripartite;

figure 2 is an enlarged image of the installed cutting insert and nests under the cutting insert on the milling cutter of a triangular disc assembly with three reference surfaces indicated;

figure 3 and figure 4 - nests for multidirectional cutting inserts on the milling cutter of the triangular disc team with an indication of the angle of intersection between the normal to the plane of the nest under the insert and the axis of the cutter.

A three-sided disc assembly mill, containing multidirectional and radially arranged polyhedral carbide cutting inserts (Fig. 1, pos. 3), fixed with screws (Fig. 1, pos. 2), is equipped with lateral locking elements in the form of a disk (Fig. 2, pos.4) with an opening for screws (Fig.2, pos.5) intended for fixing them on the body (Fig.1, pos.1) of the cutter. At the same time, said cutting inserts are made with holes for passing screws through them and are fixed on the cutter body, which is made with sockets located at two angles with the formation of two base surfaces for basing a multi-faceted carbide cutting insert and ensuring their processing with an end mill, the two mentioned basic the surface is formed by the bottom of the socket (figure 2, position 8) and its plane (figure 2, position 6) and are located so that the normal (figure 3 and figure 4; position 10) to this plane forms a crossing angle (Fig. 3 and phi g4; ω) with the axis of the milling cutter (Fig. 3 and Fig. 4; pos. 9) in the direction corresponding to the position of the polyhedral carbide cutting inserts, and the third base surface (Fig. 2, pos. 7) for basing the polyhedral carbide insert formed by said disk.

A three-sided disc assembly mill operates with three groups of cutting edges of polyhedral carbide inserts located on the periphery of the mill and on its two ends. Multifaceted carbide cutting inserts are installed in multidirectional slots of the housing of the precast triangular milling cutter. Moreover, each plate is based on three surfaces: the plane of the socket, the bottom of the socket and the side fixing element in the form of a disk mounted on the end face of the socket in the cutter body. Installed plates are fixed on the cutter body with screws. Replacing worn cutting edges with workable ones is carried out by turning the plates around their axis in the nest plane.

Claims (1)

A three-sided disk milling cutter containing multidirectional and radially located polyhedral carbide inserts fixed with screws, characterized in that it is provided with lateral fixing elements in the form of a disk with a hole for fixing them on the cutter body and basing a polyhedral carbide cutting insert, while said cutting the plates are made with holes for the passage of screws through them and are mounted on the cutter body, which is made with sockets located at two angles with the formation of two base surfaces for basing the multifaceted carbide cutting insert and ensuring their processing with an end mill, the two mentioned base surfaces being formed by the bottom of the nest and its plane and located so that the normal to this plane forms the angle of intersection with the axis of the mill in the direction corresponding to the position of the polyhedral carbide cutting inserts, and the third base surface for basing the polyhedral carbide plate is formed by the aforementioned disk.

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