SU1036462A1 - Cutting blade - Google Patents

Abstract

CUTTING PLATE for modular cutting tools, on the right side of which there are no front-sided vases and rear auxiliary corners and different angle corners are planed over the entire length of the plate, which is different from the axis of Y-shaped grooves deployed relative to one another at an angle of 9O.

Description

five

ten

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i o) y

9g.1

This invention relates to metalworking and is intended to perform cutting and slotting operations.

A known cutting plate for a collective cutting tool, on the opposite edges of which there are V-shaped grooves, the axes of which are parallel to each other (.1),

The disadvantages of the plate are the need to sharpen the front surface, as well as the presence of only the main cutting edge.

The aim of the invention is to expand the technological capabilities of the plate.

The goal is achieved tbi | that in a cutting plate for a precast cutting tool, on the opposite faces of which are V-shaped grooves, the grooves which axes are parallel to each other, and the rear auxiliary angles and auxiliary angles in plan are completed along the entire length of the plate, the axes of the V-grooves are turned relatively one another at an angle of 90 °.

Fig, 1 shows a plate, isometric; in fig. 2 - an example of the use of a plate in a cutting cutter ;. FIG. 3 is a view A of FIG. 2; in FIG. 4, view B in FIG. 2

The cutting plate 1 is made in the form of a polyhedron, approximating in shape to a cube with two main cutting edges 2 and 3, turned relative to each other on the chamfered constant width.

-. . When installing the plate in the working

The position of the main cutting edge 2 is formed by the intersection of the main back surface 4 and the front surface 5. The surfaces 6 and 6 are herewith supporting. At the intersection of the front surface 5 with the auxiliary rear surfaces 7 and 8, the auxiliary cutting edges 9 and 10 are formed. The plane 11 is in this case the back support plane of the plate.

Auxiliary rear surface 8 is inclined to the front surface 5 under the yiviOM (90 ° - 2c6) and at the main rear surface 4 at an angle (2 Auxiliary rear surface 7 with the front surface 5 and the main rear surface 4 of the 90 ° fins. In this way auxiliary angle in plan 2 1 and

auxiliary clearance angle of 2ct for the main cutting edge 2, which is twice as large as these angles when cutting.

The plate 1 is installed in the clamp 5 on the front end thereof, made in the form of a V-shaped protrusion 13, the angle of which is equal to the angle of the f-groove of the plate. Moreover, the bisector plane of the dihedral angle V-o6pa ;.

 of the main protrusion is inclined to the main plane of the tool by an angle (90 -), and the edge of the V-shaped protrusion is rotated relative to the lateral support plane of the tool by an angle.

5 When installing the plate with a V-groove on the V-shaped protrusion of the holder, the angles on the plate are redistributed. Auxiliary Rear Angle 2oSna Auxiliary Cutting

0, the edge 10 is reduced to about and on the auxiliary cutting edge 9 an auxiliary clearance angle o is formed, where. Auxiliary angle in terms of 2 V on the auxiliary cutting

5, the edge 10 is reduced to (f, and on the cutting edge 9, an auxiliary angle is formed in the plan (, i where / 2. As a result of the redistribution of the auxiliary angles in the plan at the leading cutting edge 2, the main angle in the plan ()) smoothly, without impact, the input and output of the main cutting edge from the cutting zone, which leads

to increase the resistance of the cutting edge. After wear of the cutting edge 2 plates) turn, install it on the support surfaces 5 and 5 L

When installing the plate on the support

0 surfaces 5 and 5, the main cutting edge 3 is formed by the intersection of the front surface 6 with the main rear surface 7, and at the intersection of the front surface 6 with the rear auxiliary surfaces 11 and 4, the cutting edges 14 and 15 form with the secondary glue.

The auxiliary rear surface 11. Is inclined to the front surface 6 at an angle (30 °) and to the main rear surface 7 at an angle (2 V). In this way oyo | the auxiliary is connected: the back angle is the auxiliary angle in terms of 2 V,

When installing the plate in the holder. There is a reduction of the auxiliary angle in the plan and the rear auxiliary angle on the edge 14 and the creation of these angles on the edge 15.

Claims (1)

CUTTING PLATE for a prefabricated cutting tool, on the opposite faces of which V-grooves are made, and the rear auxiliary corners and auxiliary corners in plan are made along the entire length of the plate, characterized in that; in order to expand technological capabilities, the axis of the U-shaped grooves are rotated relative to one another at an angle of 90 °.