CN107150415B

CN107150415B - Diamond tool bit and tool bit manufacturing method

Info

Publication number: CN107150415B
Application number: CN201610120827.5A
Authority: CN
Inventors: 侯家祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-03-03
Filing date: 2016-03-03
Publication date: 2020-05-15
Anticipated expiration: 2036-03-03
Also published as: WO2017148059A1; WO2017148058A1; CN107150415A; AU2016395258A1

Abstract

A diamond tool bit comprises a single-layer or multi-layer solid matrix, diamond particles are embedded in the solid matrix, and a plurality of through holes are distributed in the solid matrix.

Description

Diamond tool bit and tool bit manufacturing method

Technical Field

The invention relates to a diamond cutter, in particular to a diamond cutter head and a cutter head manufacturing method.

Technical Field

In general, a diamond saw blade used for cutting stone, concrete, or the like is formed by welding a base body and a diamond tip. The diamond tool bit used at present is usually manufactured by high-temperature and high-pressure metal powder, liquid cooling is needed due to high temperature generated during cutting of the tool bit, and powder can be left in a gap during cutting, so that secondary grinding is performed on the tool bit, and the service life is shortened.

However, since the conventional cutting head is made of metal powder, the powder of the cutting head flows in a semi-molten state during the production process, and a hollowed-out pattern cannot be manufactured, for example, in the diamond saw blade disclosed in chinese patent CN201520014U, the powder constituting the edge cutting head is obtained by uniformly mixing diamond and some metal powder in a specific ratio, so that the drainage and chip discharge grooves need to be arranged on the substrate, and the arrangement on the substrate is far less effective than the arrangement on the cutting head. The invention adopts the solid matrix, does not generate semi-molten flow during production, thereby being capable of manufacturing the hollowed-out cutter head, having good grinding effect and long service life.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides the diamond cutter head with good grinding effect and long service life.

The invention is realized by the following technical scheme:

1. the cutter head is made of a single-layer or multi-layer solid matrix, the solid matrix comprises a cutter head base body made of rigid materials and diamond particles adhered to the rigid base body, and a plurality of through geometric through holes are distributed in the cutter head. The rigid material used by the tool bit substrate comprises carbon steel, alloy steel, nonferrous metal or high polymer material, small holes or pits with the diameter smaller than that of the diamond particles are punched on the substrate, the diamond particles are paved on the substrate, or the diamond particles are directly paved on the rigid substrate without punching or pits, and the diamond particles are pressed into the solid material substrate by pressurizing and heating, so that the matrix can be manufactured.

In a preferred embodiment, the insert through bore is circular.

In a preferred embodiment, the insert through bore is oval-like.

In a preferred embodiment, the cutting edge of the cutting head has an opening communicating with the through hole, which corresponds to the addition of contact cutting points on the cutting surface, increasing the cutting efficiency.

In a preferred embodiment, the cutting edges of the blade are flush and do not have openings.

The invention also provides a manufacturing method of the diamond tool bit, which comprises the following steps:

1) determining the shape of a through hole to be formed in the cutter head body, and selecting a proper tool;

2) punching a through hole on the solid matrix by using a punch;

3) embedding diamond particles into a solid matrix;

4) stacking the punched solid pieces according to the required thickness of the cutter head;

5) and welding to form the cutter head.

In a preferred embodiment, the cutting head can be welded to the base body with the drainage channel, so that there is also a gap between the cutting heads for better results.

The invention has the beneficial effects that:

1) use the solid matrix as the tool bit, can be good carry out the fretwork design.

2) The tool bit is when the cutting, and the contact produces high temperature with the cutting object in the twinkling of an eye, because the fretwork design, no matter the tool bit is under liquid cooling condition or under the no cooling condition, and liquid and air can all reach good cooling effect through seting up the through-hole on the tool bit at a high speed.

3) The sharpness of the saw blade is improved, when a general cutter head cuts, only one cutting point of the cutting surface of the cutter head, which is contacted with a material, is arranged, and when the cutting surface of the cutter head is provided with an opening connected with the through hole, the cutting points are equivalently increased, and the sharpness is improved.

4) The tool bit can reduce the secondary effectively and grind the piece in the through-hole of people's fretwork when the cutting, has increased life.

Drawings

FIG. 1 is a schematic diagram of a diamond tip according to the first embodiment;

FIG. 2 is a schematic view of a diamond saw blade using a tool tip of the present invention according to a second embodiment;

FIG. 3 is a schematic view of an embodiment of a punched carcass cutter segment;

FIG. 4 is a schematic view of a second embodiment of a cutting head.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

In order to make the technical solution of the present invention clearer, the present invention will now be described in further detail with reference to the following embodiments and accompanying drawings:

the first embodiment is as follows:

referring to fig. 1-4, the invention discloses a method for manufacturing a hollowed-out diamond tool bit, which is manufactured by mixing metal powder and a solid matrix. The solid matrix is a single layer or multiple layers, and the material includes but is not limited to carbon steel, alloy steel, nonferrous metals or high molecular materials.

Firstly, determining the geometric pattern of the through holes 2 which need to be opened through from front to back on the cutter head body 1, and opening the through holes in an ellipse-like pattern or the circular through holes as shown in fig. 1.

Secondly, the through holes 2 are punched out of the cutting head 1 uniformly distributed by a punch, and in the process, whether the cutting edge of the cutting head 1 is in a flush pattern as shown in fig. 3 or has an opening connected with the through holes 2 as shown in fig. 1 can be selected, namely, the punch needs to punch the same through holes at the cutting edge of the cutting head 1. When having an opening, the cutting edge of the cutting head 1 corresponds to several more cutting points, corresponding to an increased sharpness, when cutting the material. And when punching, punching small holes or pits with the diameter smaller than that of the diamond particles, paving the diamond particles on the matrix, embedding the diamond particles on the matrix, and finally pressurizing to embed the diamond particles in the matrix.

Finally, as shown in fig. 3, the number of the punched tool bits 1 can be selected for superposition, and finally welding is performed to form the hollowed-out diamond tool bit of fig. 4.

After the diamond tool bit is processed, the diamond tool bit can be welded and cut according to the size of the saw blade matrix, for example, the tool bit disclosed by the invention is welded on the matrix 3 with the drainage groove in the figure 2, gaps are formed among the tool bits, and the drainage and chip removal effects are better.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A diamond tool bit comprising a single-layer or multi-layer solid body on which diamond particles are embedded, characterized in that: the solid matrix is uniformly distributed with a plurality of through holes, and the solid matrix is one of carbon steel, alloy steel, nonferrous metal or high polymer material.

2. The diamond tip of claim 1 wherein: the cutting edge of the cutter head is provided with an opening which is connected with the through hole.

3. The diamond tip of claim 1 wherein: the cutting edges of the cutter head are flush and have no openings.

4. A method for manufacturing a diamond tool bit is characterized by comprising the following steps:

1) determining the distribution of through holes to be formed in the solid matrix cutter head body, and selecting a proper tool;

2) the solid matrix is one of carbon steel, alloy steel, nonferrous metal or high molecular material, and a through hole is punched on the solid matrix;

3) embedding diamond particles into a solid matrix;

5) and welding to form the cutter head.

5. A diamond saw blade comprising the diamond tip according to any one of claims 1 to 3, and a saw blade base body to which the tip is welded.

6. The diamond saw blade as set forth in claim 5, wherein: gaps are formed among the cutter heads of the saw blades.