CN214392383U

CN214392383U - Metal ceramic cutting blade

Info

Publication number: CN214392383U
Application number: CN202023213286.1U
Authority: CN
Inventors: 何旭东
Original assignee: Longju Hard Metal Suzhou Co ltd
Current assignee: Longju Hard Metal Suzhou Co ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-10-15
Anticipated expiration: 2030-12-28

Abstract

The utility model discloses a metal ceramic cutting blade, which comprises a diamond-shaped cutter body, wherein the diamond-shaped cutter body is provided with four working edge surfaces, the diamond-shaped cutter body is provided with a pair of acute-angle cutting edge parts formed by adjacent working edge surfaces, the central area of the diamond-shaped cutter body is provided with a boss part, a chip pocket is arranged between the boss part and the acute-angle cutting edge parts, the chip pocket further comprises a lower slope surface and an upper slope surface, and a plurality of small grooves distributed at intervals are arranged on the chip pocket; the chip groove further comprises a lower slope surface and an upper slope surface which are positioned on two sides of the valley bottom, the upper slope surface is composed of a first continuous slope surface and a second continuous slope surface, and an included angle between the first slope surface and the surface of the cutter body is smaller than an included angle between the second slope surface and the surface of the cutter body. The utility model discloses the cost bits can be got rid of more fast effectively to the cermet cutting blade, has improved the yield and the reliability of product, has reduced cutting force and heat man-hour.

Description

Metal ceramic cutting blade

Technical Field

The utility model relates to a cermet cutting blade belongs to numerical control blade technical field.

Background

Numerically controlled lathes are one of the most widely used machine tools, the workers using them being called "lathes", which in the machining industry are considered as the working "master" of all the equipment. The lathe is mainly used for processing shafts, discs, sleeves and other workpieces with rotating surfaces, mainly takes a cylinder as a main part, and is the most widely used machine tool in machinery manufacturing and repairing factories. The turning tool is a tool for directly machining a workpiece in a lathe, and directly affects machining accuracy.

Disclosure of Invention

The utility model aims at providing a cermet cutting blade, this cermet cutting blade can get rid of the expense bits more fast effectively, has improved the yield and the reliability of product, has reduced and has add cutting force and heat man-hour.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a cermet cutting insert comprising a rhomboidal body having four working facets, the rhomboidal body having a pair of acute nose portions formed by adjacent working facets, a central region of the rhomboidal body having a boss portion with a chip pocket therebetween;

the chip groove further comprises a lower slope surface and an upper slope surface which are positioned on two sides of the valley bottom, the upper slope surface is composed of a first continuous slope surface and a second continuous slope surface, an included angle between the first slope surface and the surface of the cutter body is smaller than an included angle between the second slope surface and the surface of the cutter body, and a plurality of small grooves which are distributed at intervals are formed in the first slope surface and the second slope surface.

The further improved scheme in the technical scheme is as follows:

1. in the scheme, the included angle between the first inclined plane and the surface of the cutter body is 5-7 degrees.

2. In the scheme, the included angle between the second inclined plane and the surface of the cutter body is 16-20 degrees.

3. In the above scheme, a circular mounting through hole is formed in the center of the rhombic cutter body.

4. In the scheme, the small groove on the chip groove is a circular small groove.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:

the metal ceramic cutting blade of the utility model has the chip groove between the boss part and the acute angle cutting tip part, and further comprises a lower slope surface and an upper slope surface which are positioned at two sides of the valley bottom, wherein the upper slope surface consists of a continuous first inclined surface and a continuous second inclined surface, and the included angle between the first inclined surface and the surface of the cutter body is smaller than the included angle between the second inclined surface and the surface of the cutter body, so that the scrap can be removed more quickly and effectively, the smoothness and the quality of the surface of a processed workpiece are improved, and the yield and the reliability of products are improved; in addition, the chip groove further comprises a lower slope surface and an upper slope surface, the upper slope surface consists of a continuous first slope surface and a continuous second slope surface, and a plurality of small grooves distributed at intervals are formed in the first slope surface and the second slope surface, so that the cutting force and heat during processing are reduced, the adhesion of the chip groove and the cutting chips is improved, and the integral service life of the cutting blade is prolonged.

Drawings

FIG. 1 is a schematic structural view of a cermet cutting insert of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

fig. 3 is a partially enlarged view of B in fig. 2.

In the above drawings: 1. a diamond cutter body; 2. a working edge face; 3. an acute-angle nose portion; 4. a boss portion; 5. a chip pocket; 6. a small groove; 7. a circular mounting through hole; 8. bottom of the grain; 9. a lower slope surface; 10. an upward slope surface; 101. a first inclined plane; 102. a second inclined plane.

Detailed Description

In the description of this patent, it is noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The meaning of the above terms in this patent may be specifically understood by those of ordinary skill in the art.

Example 1: a cermet cutting insert comprises a rhombohedral body 1, the rhombohedral body 1 having four working facets 2, the rhombohedral body 1 having a pair of acute-angled nose portions 3 formed by adjacent working facets 2, a central region of the rhombohedral body 1 having a boss portion 4, the boss portion 4 and the acute-angled nose portions 3 having chip pockets 5 therebetween;

the chip flute 5 further comprises a downward slope 9 and an upward slope 10 which are positioned at two sides of the valley bottom 8, the upward slope 10 is composed of a first slope 101 and a second slope 102 which are continuous, the included angle between the first slope 101 and the surface of the cutter body 1 is smaller than the included angle between the second slope 102 and the surface of the cutter body 1, and a plurality of small grooves 6 which are distributed at intervals are arranged on the first slope 101 and the second slope 102.

The angle between the first inclined plane 101 and the surface of the cutter body 1 is 7 °.

The angle between the second inclined surface 102 and the surface of the cutter body 1 is 18 °.

The small groove 6 on the chip flute 5 is a circular small groove 6.

Example 2: a cermet cutting insert comprises a rhombic body 1, the rhombic body 1 is provided with four working edge surfaces 2, the rhombic body 1 is provided with a pair of acute-angle nose portions 3 formed by the adjacent working edge surfaces 2, the central area of the rhombic body 1 is provided with a boss portion 4, and a chip pocket 5 is formed between the boss portion 4 and the acute-angle nose portion 3;

The first inclined plane 101 forms an angle of 6 ° with the surface of the cutter body 1.

The angle between the second inclined surface 102 and the surface of the cutter body 1 is 17 °.

The diamond cutter body 1 is provided with a circular mounting through hole 7 at the center.

When the metal ceramic cutting blade is adopted, the chip groove between the boss part and the acute-angle tool tip part further comprises a lower slope surface and an upper slope surface which are positioned at two sides of the valley bottom, the upper slope surface consists of a continuous first slope surface and a continuous second slope surface, and the included angle between the first slope surface and the surface of the tool body is smaller than the included angle between the second slope surface and the surface of the tool body, so that the waste chips can be removed more quickly and effectively, the finish degree and the quality of the surface of a processed workpiece are improved, and the yield and the reliability of products are improved; in addition, the chip groove further comprises a lower slope surface and an upper slope surface, the upper slope surface consists of a continuous first slope surface and a continuous second slope surface, and a plurality of small grooves distributed at intervals are formed in the first slope surface and the second slope surface, so that the cutting force and heat during processing are reduced, the adhesion of the chip groove and the cutting chips is improved, and the integral service life of the cutting blade is prolonged.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. A cermet cutting insert characterized by: the diamond-shaped cutter comprises a diamond-shaped cutter body (1), wherein the diamond-shaped cutter body (1) is provided with four working edge surfaces (2), the diamond-shaped cutter body (1) is provided with a pair of acute-angle cutter point parts (3) formed by the adjacent working edge surfaces (2), the central area of the diamond-shaped cutter body (1) is provided with a boss part (4), and a chip groove (5) is formed between the boss part (4) and the acute-angle cutter point part (3);

the flute (5) further comprises a lower slope surface (9) and an upper slope surface (10) which are positioned at two sides of the valley bottom (8), wherein the upper slope surface (10) consists of a first continuous inclined surface (101) and a second continuous inclined surface (102), the included angle between the first inclined surface (101) and the surface of the cutter body (1) is smaller than the included angle between the second inclined surface (102) and the surface of the cutter body (1), and a plurality of small grooves (6) distributed at intervals are formed in the first inclined surface (101) and the second inclined surface (102).

2. The cermet cutting insert of claim 1, wherein: the included angle between the first inclined plane (101) and the surface of the cutter body (1) is 5-7 degrees.

3. The cermet cutting insert of claim 1, wherein: the included angle between the second inclined surface (102) and the surface of the cutter body (1) is 16-20 degrees.

4. The cermet cutting insert according to claim 1 or 2, characterized in that: the center of the rhombic cutter body (1) is provided with a circular mounting through hole (7).

5. The cermet cutting insert according to claim 1 or 2, characterized in that: the small groove (6) on the chip groove (5) is a round small groove (6).