A turning/milling insert for processing special-shaped parts of high-hardness steel

Abstract

The invention discloses a turning / milling insert for processing high-hardness steel special-shaped parts, which comprises a roughly regular heptagonal insert body; the insert body has an upper surface, a lower surface and side surfaces; the geometric center of the insert body is provided with a The fastening screw holes on the upper and lower surfaces; the intersection line between the upper surface and the side of the blade body constitutes the cutting portion of the blade, and the cutting portion includes a knife point at the vertex of a regular heptagon and a side of the regular heptagon The cutting edge is concave inward in an arc shape so that the cutting edge forms a fishtail-shaped cutting edge; the upper surface of the blade body extends inwardly along the fishtail-shaped cutting edge to form a fishtail-shaped rake face. The structure of the present invention can solve the problems of one-time post-fire profiling processing of special-shaped surfaces, the high hardness of the workpiece requires tool wear resistance, chipping resistance, high structural precision and good hard cutting performance, and solves the problem that the current tool cannot meet the requirements. Technical difficulties of comprehensive processing requirements under extreme conditions.

Description

Technical field

[0001] The invention relates to the technical field of cutting tools, in particular to a turning / milling insert for processing high-hard steel special-shaped parts. Background technique

[0002] With the continuous emergence of new materials, new processes and complex structures of workpieces, higher requirements have been placed on the performance of metal cutting tools. In order to reduce unnecessary costs, one-time processing, profiling processing and post-fire processing are increasingly favored by manufacturers.

[0003] At present, the one-time post-fire profiling processing is mainly a new processing method proposed for the problem of high-efficiency processing of complex parts. One-time processing requires that the structural accuracy of the tool before the completion of the processing must meet the technical requirements, that is, good wear resistance and chipping resistance, long service life, and high surface accuracy; profiling processing requires good ...

Examples

Embodiment

[0032] See Figure 1 to Figure 6 As shown, a turning / milling insert for processing high-hard steel special-shaped parts of the present invention includes a substantially heptagonal insert body 1; the insert body 1 has an upper surface 11, a lower surface 12, and a side surface 13; the insert The geometric center of the body 1 is provided with a fastening screw hole 2 penetrating through the upper and lower surfaces, so that the blade body 1 is fixed to the turning / milling cutter body by using the fastening screw hole 2; the upper surface of the blade body 1 The intersection line of 11 and the side 13 constitutes the cutting portion of the insert, which includes the tip 31 at the apex angle of the regular heptagon and the cutting edge at the side of the regular heptagon, and the cutting edge is curved inwardly. The cutting edge forms a fishtail-shaped cutting edge 32; the upper surface of the blade body 1 extends inward along the fishtail-shaped cutting edge to form a fishtail-s...

Technical field

[0001] The invention relates to the technical field of cutting tools, in particular to a turning / milling insert for processing high-hard steel special-shaped parts. Background technique

[0002] With the continuous emergence of new materials, new processes and complex structures of workpieces, higher requirements have been placed on the performance of metal cutting tools. In order to reduce unnecessary costs, one-time processing, profiling processing and post-fire processing are increasingly favored by manufacturers.

[0003] At present, the one-time post-fire profiling processing is mainly a new processing method proposed for the problem of high-efficiency processing of complex parts. One-time processing requires that the structural accuracy of the tool before the completion of the processing must meet the technical requirements, that is, good wear resistance and chipping resistance, long service life, and high surface accuracy; profiling processing requires good ...

Examples

Embodiment

[0032] See Figure 1 to Figure 6 As shown, a turning / milling insert for processing high-hard steel special-shaped parts of the present invention includes a substantially heptagonal insert body 1; the insert body 1 has an upper surface 11, a lower surface 12, and a side surface 13; the insert The geometric center of the body 1 is provided with a fastening screw hole 2 penetrating through the upper and lower surfaces, so that the blade body 1 is fixed to the turning / milling cutter body by using the fastening screw hole 2; the upper surface of the blade body 1 The intersection line of 11 and the side 13 constitutes the cutting portion of the insert, which includes the tip 31 at the apex angle of the regular heptagon and the cutting edge at the side of the regular heptagon, and the cutting edge is curved inwardly. The cutting edge forms a fishtail-shaped cutting edge 32; the upper surface of the blade body 1 extends inward along the fishtail-shaped cutting edge to form a fishtail-s...

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