CN210451207U

CN210451207U - Welding type cubic boron nitride composite blade circular saw

Info

Publication number: CN210451207U
Application number: CN201921362912.8U
Authority: CN
Inventors: 张大晟
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-21
Filing date: 2019-08-21
Publication date: 2020-05-05
Anticipated expiration: 2029-08-21

Abstract

A welded type cubic boron nitride compound blade circular saw comprises a circular base body, wherein a plurality of sawteeth are arranged on the circumference of the base body, a blade welding groove is formed in each sawtooth blade, a blade is welded at the blade welding groove, and the blades are uniformly distributed in a ring mode to form a blade ring group; the blades in the blade ring group are all cubic boron nitride composite blades; or the blades in the blade ring group comprise cubic boron nitride composite blades and metal ceramic blades, the blades in the metal ceramic blade ring group are distributed between any two adjacent cubic boron nitride composite blades and comprise cubic boron nitride composite blades and hard alloy blades, the hard alloy blades are distributed between any two adjacent cubic boron nitride composite blades, or the two hard alloy blades are distributed between any two adjacent cubic boron nitride composite blades. The utility model discloses blade material mixed type annular saw full play known cubic boron nitride superhard materials good cutting performance has increaseed the application scope of processing material.

Description

Welding type cubic boron nitride composite blade circular saw

Technical Field

The utility model relates to a saw cut ferrous metal material, circular saw blade of high-speed cutting.

Background

At present, saws produced in the domestic and foreign sawing industry mainly have two major categories, one is saw blades which are also divided into long frame saw blades and annular band saw blades, and the long frame saw blades and the annular band saw blades are respectively arranged on a frame saw machine tool or a band saw machine tool for sawing; the other type is a circular saw blade, i.e., a saw having a plurality of teeth formed on the periphery of the circular saw blade, which is positioned with holes and mounted on various carbide cold saw cutters.

With the advent of superhard diamond composite blades (PCD), welded diamond composite blade circular saws have been widely used in the domestic and foreign sawing industry, and although diamond has a high hardness and good wear resistance, it also has some disadvantages, in addition to low strength and toughness, it has poor thermal stability and chemical stability to iron, and is therefore only suitable for processing nonferrous metals, such as aluminum, aluminum alloys, plastics, wood, ceramics, glass fibers, and the like. When the materials are cut, the tool durability can be improved by dozens of times compared with that of a hard alloy tool, and high surface finish and dimensional precision can be obtained.

In fact, over the years ago, a superhard cubic boron nitride material appeared, which has a slightly lower hardness than synthetic diamond, but a much higher thermal stability than synthetic diamond, which has a thermal stability of less than 850 ℃, and a thermal stability of not less than 1200 ℃ and starts to turn back into hexagonal crystals until 1400 ℃. In addition, it has better chemical inertness to iron than diamond, and does not produce chemical reaction to cause abrasion when cutting iron group metal at high temperature. Therefore, the material is a novel cutter material and is expected to be used for processing ferrous metals, particularly processing some ferrous metal materials which are difficult to process, including various carbon steels, alloy steels and pig irons.

However, the materials of the welding type circular saw blade for cutting various ferrous metal materials provided by the domestic and foreign sawing industry still remain on the basis of a metal ceramic blade, a superhard alloy blade and a hard alloy blade (+ coating), and the welding type cubic boron nitride composite blade circular saw is still blank.

Disclosure of Invention

An object of the utility model is to overcome the aforesaid of prior art not enough and provide a welding formula cubic boron nitride composite blade annular saw, the known good cutting performance of cubic boron nitride superhard materials of blade material mixed type annular saw full play has increaseed the application scope of processing material.

The technical scheme of the utility model is that: the circular cutting machine comprises a circular base body, wherein a plurality of sawteeth are arranged on the circumference of the base body, the sawteeth are distributed in a circumferential array to form a circular structure, each sawteeth tooth edge is provided with a blade welding groove, a blade is welded at the blade welding groove, the blade edge of the blade is consistent with the direction of the sawteeth edge, and the blades are uniformly distributed in a circular manner to form a blade ring group; blades in the blade ring group are all cubic boron nitride composite blades to form a welding type cubic boron nitride composite blade circular saw; or the blades in the blade ring group comprise cubic boron nitride composite blades and metal ceramic blades, wherein one metal ceramic blade is distributed between any two adjacent cubic boron nitride composite blades, or two metal ceramic blades are distributed between any two adjacent cubic boron nitride composite blades; the blades in the blade ring group comprise cubic boron nitride composite blades and hard alloy blades, wherein a hard alloy blade is distributed between any two adjacent cubic boron nitride composite blades, or two hard alloy blades are distributed between any two adjacent cubic boron nitride composite blades to form a blade material mixed circular saw which comprises the cubic boron nitride composite blades and is connected with the metal ceramic blades or the hard alloy blades.

The basal body between two adjacent sawteeth is provided with a chip groove which is a concave arc groove, and the back of each sawtooth is a convex arc surface.

Angle of blade welded in blade welding groove: the left principal declination angle KrL is 90 DEG + -2 DEG, and the front declination angle gamma₀Is 0 DEG-20 DEG, and a primary relief angle alpha₀Is 5 DEG-20 DEG, left offset angle KrL 'is 0 DEG-5 DEG, right offset angle KrR' is 0 DEG-5 DEG, and left offset angle a is alpha₀L' is 0-5 DEG, and right side relief angle alpha₀R' is 0-5 deg.

The cubic boron nitride composite blade comprises a cubic boron nitride layer and a composite layer, wherein the composite layer is welded with the blade welding groove.

The welded type cubic boron nitride composite blade circular saw has high blade cost and labor-consuming processing technology, so the price is high, compared with the existing metal ceramic blade circular saw, superhard alloy blade circular saw or hard alloy circular saw, although the cutting performance is good, most users cannot purchase due to high price. Therefore, in order to greatly reduce the production cost and meet the actual requirements of each user to the maximum extent, the blade on the existing metal ceramic blade circular saw can be changed into a cubic boron nitride composite blade by one half or one third; the hybrid circular saw which is formed by adopting the blades made of different materials on the same base body according to a certain proportion can enable the cubic boron nitride composite blade to fully reflect the good cutting performance in the field of cutting ferrous metal materials.

The cutting performance and the technological performance of various cutter materials are different, the price is different, so after the cubic boron nitride composite blade and the circular saw made of the existing blade material are mixed into a novel circular saw blade according to the proportion of the quantity of the blades, a new series can be formed, a user can reasonably choose and purchase according to actual needs, and the welded cubic boron nitride composite blade circular saw has the functions of being capable of being polished and renewed after normal abrasion and being used for multiple times, so that the welded cubic boron nitride composite blade circular saw can bring the advantages of high yield, high quality and low consumption for the majority of users.

The utility model discloses welding formula cubic boron nitride composite blade annular saw, including base member and blade, the blade is including cutting various ferrous metal material and difficult processing ferrous metal material's cubic boron nitride composite blade annular saw beyond, cermet blade and carbide blade in addition. After the cubic boron nitride composite blade and the metal ceramic blade or the hard alloy blade are orderly welded in the circular sawtooth blade groove of the base body according to different proportions, various blade material mixed circular saws comprising the cubic boron nitride composite blade can be manufactured, the circular saw cost can be reduced, and the circular saw can be selected and purchased by the majority of users to the maximum extent from the actual requirement.

The welded cubic boron nitride composite blade circular saw and the blade material mixed circular saw can be repaired and renewed for many times after being worn normally, so that the purposes of high yield, high quality and low consumption are achieved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is one of the structural representations of part A of the present invention;

FIG. 3 is a second schematic view of the structure of part A of the present invention;

FIG. 4 is a third schematic view of the structure of the part A of the present invention;

FIG. 5 is a fourth schematic view of the structure of part A of the present invention;

FIG. 6 is a schematic view of a saw tooth configuration;

FIG. 7 is a view from the direction B of FIG. 6;

fig. 8 is a cross-sectional view of C-C of fig. 6.

Detailed Description

In fig. 1, the utility model discloses a base member 1 and different material blades are arranged at 1 circular limit of base member and are had a plurality of sawtooth, have blade welding groove on each sawtooth, and the blade welding inslot of each sawtooth all welds after cubic boron nitride compound blade 2, has formed welded formula cubic boron nitride compound blade annular saw promptly.

In fig. 2, a cubic boron nitride composite insert 2 and a cermet insert 3 may be fabricated on an insert arrangement of a circular substrate 1 as 1: 1 hybrid circular saw with different blade materials.

In fig. 3, a cubic boron nitride composite insert 2 and a cermet insert 3 may be fabricated on an insert arrangement of a circular substrate 1 as 1: 2 a hybrid circular saw with different blade materials.

In fig. 4, a cubic boron nitride composite insert 2 and a cemented carbide insert 4 may be fabricated in an insert arrangement of a circular base 1 as 1: 1 hybrid circular saw with different blade materials.

In fig. 5, a cubic boron nitride composite insert 2 and a cemented carbide insert 4 may be fabricated in an insert arrangement of a circular base 1 as 1: 2 a hybrid circular saw with different blade materials.

In fig. 6, 7, 8, the angle of the blade welded in the blade weld groove: left principal declination KrL is 90 DEG, front angle gamma₀Is 0 DEG to 20 DEG, a primary relief angle is 5 DEG to 20 DEG, a left secondary offset angle KrL 'is 0 DEG to 5 DEG, a right secondary offset angle KrR' is 0 DEG to 5 DEG, and a left secondary relief angle alpha is alpha₀L' is 0-5 deg. and right side relief angle alpha₀R' is 0-5 degrees. B is the thickness of the substrate, B is the width of the insert, S is the pitch, H is the tooth height, and 5 is the chip flute.

Claims

1. The utility model provides a welding formula cubic boron nitride composite blade annular saw which characterized in that: the cutting tool comprises a circular base body (1), wherein a plurality of sawteeth are arranged on the circumference of the base body (1), the sawteeth are distributed in a circumferential array to form a circular structure, each sawteeth tooth edge is provided with a blade welding groove, a blade is welded at the blade welding groove, the direction of the blade edge of the blade is consistent with that of the sawteeth tooth edge, and the blades are uniformly distributed in a circular manner to form a blade ring group; the blades in the blade ring group are all cubic boron nitride composite blades (2); or the blades in the blade ring group comprise cubic boron nitride composite blades (2) and cermet blades (3), one cermet blade (3) is distributed between any two adjacent cubic boron nitride composite blades (2), or two cermet blades (3) are distributed between any two adjacent cubic boron nitride composite blades (2); the blades in the blade ring group comprise cubic boron nitride composite blades (2) and hard alloy blades (4), wherein one hard alloy blade (4) is distributed between any two adjacent cubic boron nitride composite blades (2), or two hard alloy blades (4) are distributed between any two adjacent cubic boron nitride composite blades (2).

2. The welded cubic boron nitride compound blade circular saw of claim 1, wherein: the chip groove (5) is arranged at the position of the matrix (1) between two adjacent sawteeth, the chip groove (5) is a concave arc-shaped groove, and the back of the sawteeth is a convex arc-shaped surface.

3. The welded cubic boron nitride compound blade circular saw of claim 1, wherein: angle of blade welded in blade welding groove: the left principal declination angle KrL is 90 DEG + -2 DEG, and the front declination angle gamma₀Is 0 DEG-20 DEG, and a primary relief angle alpha₀Is 5 DEG-20 DEG, left offset angle KrL 'is 0 DEG-5 DEG, right offset angle KrR' is 0 DEG-5 DEG, and left offset angle a is alpha₀L' is 0-5 DEG, and right side relief angle alpha₀R' is 0-5 deg.

4. The welded cubic boron nitride compound blade circular saw of claim 1, wherein: the cubic boron nitride composite blade (2) comprises a cubic boron nitride layer and a composite layer, and the composite layer is welded with the blade welding groove.