CN218311232U

CN218311232U - High-connection-strength base body

Info

Publication number: CN218311232U
Application number: CN202222527307.XU
Authority: CN
Inventors: 许文强; 张玉忠
Original assignee: Shijiazhuang Lanhai Tools Co ltd
Current assignee: Shijiazhuang Lanhai Tools Co ltd
Priority date: 2022-09-23
Filing date: 2022-09-23
Publication date: 2023-01-17
Anticipated expiration: 2032-09-23

Abstract

The utility model discloses a high-connection strength matrix, belonging to the technical field of diamond saw blade processing, comprising a plurality of improved long merlons which are outwards arranged on the excircle of the matrix and a plurality of arc-shaped tooth protecting notches which are inwards arranged on the matrix; the improved great wall tooth comprises a plurality of great wall tooth bulges and a plurality of great wall tooth grooves arranged between the great wall tooth bulges, and the great wall tooth bulges are inverted quadrangular frustum pyramid in shape; the improved tooth protector is arranged in the tooth protector gap and comprises a plurality of tooth protector bulges and a plurality of tooth protector grooves arranged between the tooth protector bulges; the improved long merlons and the improved guard teeth are connected into a plane. The utility model discloses can realize the tool bit of sintering saw bit and the high strength connection of base member.

Description

High-connection-strength base body

Technical Field

The utility model belongs to the technical field of the diamond saw blade processing technique and specifically relates to a high joint strength base member.

Background

The most basic components of a diamond saw blade are a substrate 1 and a tool tip 2. The tool bit 2 is made by pressing the shape and size of the tool bit 2 under the pressure action of a die after metal powder such as copper, tin, iron, nickel, zinc and the like are uniformly mixed with diamond particles, and the process is called pressing. Then sintering at 850-950 ℃ to form the cutter head 2 with certain strength and toughness for cutting, and the process is called sintering. The diamond saw blade includes a welding type saw blade and a sintered saw blade.

The welding type saw bit is that tool bit 2 takes shape alone, and sintering alone welds the base member through welding process to tool bit 2 one by one at last, and the welding has not only increased a process, and tool bit 2 welded efficiency is very low moreover, so production efficiency is lower.

The production characteristics of the sintered sheet are as follows: in the pressing process, the tool bit 2 is directly pressed on the outer edge of the base body, the forming of the tool bit 2 and the connection with the base body 1 are completed simultaneously, and the tool bit 2 and the base body 1 are sintered together to complete the main processing process of the saw blade. Therefore, the use of the diamond sintered saw blade has been very widespread, and the sintered saw blade has become a dominant force of the diamond saw blade due to high efficiency and low cost caused by mass production thereof.

As shown in figure 1, from the appearance of the sintered saw blade, the cutter head 2 is connected with the base body 1 by wrapping the base body 1, and in the sintering process, under the action of high temperature and certain pressure, metal atoms in powder of the cutter head 2 and the metal of the base body 1 are connected with the base body 1 in a diffusion, permeation and alloying mode.

In this case, the strength of the connection of the cutting insert 2 to the base body 1 depends not only on the chemical composition of the base body of the cutting insert 2, the sintering temperature, the pressure, the time, but also on the surface quality of the base body 1, the contact area. The connection form of the cutting head 2 and the base body 1 of the sintered saw blade is difficult to change due to the limitation of the structural size of the saw blade, but is the most basic and important factor for the saw blade. Once the connection between the cutting head 2 and the basic body 1 is broken, the entire saw blade is only scrapped. Therefore, each manufacturer pays much attention to this. In order to strengthen the connection strength of the cutter head 2 and the base body 1, various types of tooth protection cutter heads are produced. The tooth protector not only increases the connecting area, but also improves the stress of the connecting surface. The tooth guard also improves the connection quality of the cutting section.

As shown in fig. 2, the current base body 1 comprises a plurality of groups of long merlons 3 which are outwards arranged on the excircle of the base body 1 and a plurality of tooth protecting notches 4 which are inwards arranged on the base body 1; the tooth protecting gap 4 is provided with a tooth protecting 5 with the same thickness as the base body 1. The merlons 3 and the guard teeth 5 enlarge the contact area of the base body 1 and the cutter head 2. The long merlons 3 and the guard teeth 5 are both rectangular teeth.

However, the diamond sintered saw blade has the following problems:

1. a new exposed metal layer is not processed at the position corresponding to the tooth protection on the base body 1, the metal layer is a smooth rolling surface, and the metal layer is a surface which is oxidized to a certain degree and has a low cleaning degree, so that the connection strength between the base body and the cutter head is influenced. The tooth protector is originally used for protecting other normal teeth, but in actual work, the tooth protector becomes a burst opening of the cutter head which is damaged due to insufficient connection strength of the tooth protector and the base body.

2. Because the arch of the great wall tooth 3 on the excircle of base member 1 all is the rectangle structure parallel with the excircle radius for the four sides, except the adhesion force of great wall tooth 3 and tool bit 2, the structure of great wall tooth 3 can't provide the power that prevents tool bit 2 and break away from base member 1, has reduced the joint strength of tool bit 2 and base member 1.

In order to better solve the above problems and increase the connection strength between the cutting insert and the base body, it is necessary to develop a high connection strength base body.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that needs to solve provides a high joining strength base member, can realize the tool bit of sintering saw bit and the high strength connection of base member.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:

a high-connection-strength base body comprises a plurality of improved long merlons which are outwards arranged on the outer circle of the base body and a plurality of arc-shaped tooth protecting notches which are inwards arranged on the base body; the improved great wall tooth comprises a plurality of great wall tooth bulges and a plurality of great wall tooth grooves arranged between the great wall tooth bulges, and the great wall tooth bulges are inverted quadrangular frustum pyramid in shape; the improved tooth protector is arranged in the tooth protector gap and comprises a plurality of tooth protector bulges and a plurality of tooth protector grooves arranged between the tooth protector bulges; the improved long merlons and the improved guard teeth are connected into a plane.

The utility model discloses technical scheme's further improvement lies in: the improved long merlons are arranged on the outer circle of the base body, and the thickness of the improved long merlons is 0.5-0.75 times of that of the base body.

The utility model discloses technical scheme's further improvement lies in: the improved tooth protector is arranged on the tooth protector notch, and the thickness of the improved tooth protector is the same as that of the improved long city tooth.

The utility model discloses technical scheme's further improvement lies in: the great wall tooth bulge comprises a rectangular bottom surface, a rectangular top surface and four ridges, wherein the rectangular bottom surface, the central point of the base body and the central point of the base body are on the same straight line, the four ridges are respectively connected with the bottom surface and the top surface, and the area of the bottom surface of the great wall tooth bulge is smaller than that of the top surface.

The utility model discloses technical scheme's further improvement lies in: the included angle beta between the ridge and the connecting line of the center point of the bottom surface and the center point of the top surface is 5-12 degrees.

The utility model discloses technical scheme's further improvement lies in: the width of the bottom surface of the great wall tooth protrusion is the same as that of the great wall tooth groove.

The utility model discloses technical scheme's further improvement lies in: the tooth protection protrusion is rectangular.

Since the technical scheme is used, the utility model discloses the technological progress who gains is:

1. the utility model discloses a protect the tooth position on the base member and carry out the attenuate processing, get rid of metalworking promptly, improved base member connection plane metal activity, improved the joint strength who protects tooth position tool bit and base member, and the joint strength improvement is the prerequisite and the basis that saw bit bulk strength improves.

2. The utility model discloses a long city tooth bellied radial, axial setting fall trapezium structure on the base member, have changed the atress direction of connecting the face, make base member and tool bit form tenon fourth of the twelve earthly branches structure, have improved joint strength between the two.

Drawings

FIG. 1 is a schematic view of the connection between the base and the tool bit according to the present invention;

FIG. 2 is a schematic view of the prior art base structure of the present invention;

FIG. 3 is a schematic view of the structure of the medium-high connection strength base body of the present invention;

FIG. 4 is a partial enlarged view of the medium-high bond strength matrix structure of the present invention;

FIG. 5 is a left side view of the improved long city tooth structure of the present invention;

the tooth protection device comprises a base body 1, a base body 2, a cutter head 3, a great wall tooth 4, a tooth protection notch 5, a tooth protection 6, an improved great wall tooth 6-1, a great wall tooth protrusion 6-2, a great wall tooth groove 7, an improved tooth protection 7-1, a tooth protection protrusion 7-2 and a tooth protection groove.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and embodiments:

in the description of the present invention, it is to be understood that the terms "center", "radial", "circumferential", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" \8230 \ 8230, etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and for simplification of the description, and do not indicate or imply that the device or element 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.

In the description of the present invention, "a number" means at least two, such as two, three, etc., unless explicitly defined otherwise.

As shown in fig. 3, a high connection strength base body comprises a plurality of improved long merlons 6 which are outwards arranged on the outer circle of the base body 1 and a plurality of arc-shaped tooth protecting gaps 4 which are inwards arranged on the base body 1; the improved great wall teeth 6 comprise a plurality of great wall tooth bulges 6-1 and a plurality of great wall tooth grooves 6-2 arranged between the great wall tooth bulges 6-1, and the great wall tooth bulges 6-1 are in the shape of inverted quadrangular frustum pyramid; the improved tooth protector 7 is arranged in the tooth protector gap 4 and comprises a plurality of tooth protector bulges 7-1 and a plurality of tooth protector grooves 7-2 arranged between the tooth protector bulges 7-1; the improved long merlons 6 and the improved guard teeth 7 are connected into a plane.

As shown in fig. 4, the improved great merlons 6 are arranged on the excircle of the base 1 and are symmetrical about the central line of the excircle of the base 1, that is, the distances between the two sides of the improved great merlons 6 and the corresponding excircle edges of the base 1 are the same, and the thickness of the improved great merlons 6 is 0.5 to 0.75 times that of the base 1; the improved tooth guard 7 is arranged on the tooth guard gap 4 and is symmetrical about the center line of the tooth guard gap 4, namely, the distances between the two sides of the improved tooth guard 7 and the outer circle edges of the corresponding base body 1 are the same, and the thickness of the improved tooth guard 7 is the same as that of the improved great wall tooth 6.

As shown in fig. 5, the great wall tooth protrusion 6-1 comprises a rectangular bottom surface, a rectangular top surface with a center point on the bottom surface and a center point on the base body 1 on the same straight line, and four ridges respectively connecting the bottom surface and the top surface, wherein the area of the bottom surface of the great wall tooth protrusion 6-1 is smaller than that of the top surface, the range of an included angle beta between the ridges and a connecting line of the center point of the bottom surface and the center point of the top surface is 5-12 degrees, and the width of the bottom surface of the great wall tooth protrusion 6-1 is the same as that of the great wall tooth groove 6-2.

The tooth protecting protrusion 7-1 is rectangular.

The processing mode is as follows:

the surface metal is removed from the connecting part of the improved tooth guard 7 of the matrix 1 and the excircle surface and the cutter head 2, the metal removing range is shifted to the outside by 0.125-0.25 times of the matrix thickness from two sides of the improved tooth guard 7, and the metal removing range and the excircle edge of the matrix 1 are connected into a plane, so that the metal with higher activity is exposed, and the metal is better permeated, diffused and alloyed with the metal of the cutter head 2; the improved long merlons 6 and the improved guard teeth 7 are alternately connected to form a closed loop.

Each plane of the great wall tooth bulge 6-1 is trapezoidal to form an inverted quadrangular frustum pyramid, the external dimension of the inverted quadrangular frustum pyramid is larger than the internal dimension of the inverted quadrangular frustum pyramid, namely the area of the top surface is larger than that of the bottom surface, and two waists of each trapezoidal surface form an angle of 5-12 degrees with the radius of the base body 1 respectively; in the radial direction of the base body 1, the two planes of the great wall tooth bulge 6-1 are in a trapezoidal structure after metal is removed; in the circumferential direction of the base body 1, the two planes of the great wall tooth bulge 6-1 are in a trapezoidal structure after metal is removed.

Claims

1. The utility model provides a high joint strength base member, includes that a plurality of outwards sets up arc that sets up on base member (1) excircle in long city tooth (6) of improved generation and a plurality of on base member (1) are inwards protected tooth breach (4), its characterized in that: the improved great wall teeth (6) comprise a plurality of great wall tooth bulges (6-1) and a plurality of great wall tooth grooves (6-2) arranged between the great wall tooth bulges (6-1), and the great wall tooth bulges (6-1) are in inverted quadrangular frustum pyramid shapes; the improved tooth protector (7) is arranged in the tooth protector gap (4) and comprises a plurality of tooth protector bulges (7-1) and a plurality of tooth protector grooves (7-2) arranged among the tooth protector bulges (7-1); the improved long merlons (6) and the improved guard teeth (7) are connected into a plane.

2. A high bond strength substrate according to claim 1, wherein: the improved long merlons (6) are arranged on the excircle of the base body (1), and the thickness of the improved long merlons (6) is 0.5-0.75 times of that of the base body (1).

3. A high bond strength substrate according to claim 2, wherein: the improved tooth protector (7) is arranged on the tooth protector notch (4), and the thickness of the improved tooth protector (7) is the same as that of the improved long city tooth (6).

4. A high bond strength substrate according to claim 1, wherein: the long merlons (6-1) comprise rectangular bottom surfaces, rectangular top surfaces and four ridges, wherein the center points of the rectangular bottom surfaces, the center points of the bottom surfaces and the center point of the base body (1) are on the same straight line, the rectangular top surfaces are respectively connected with the bottom surfaces and the top surfaces, and the area of the bottom surfaces of the long merlons (6-1) is smaller than that of the top surfaces.

5. A high bond strength substrate as recited in claim 4, wherein: the included angle beta between the ridge and the connecting line of the center point of the bottom surface and the center point of the top surface is 5-12 degrees.

6. A high bond strength substrate according to claim 4 wherein: the width of the bottom surface of the great wall tooth bulge (6-1) is the same as that of the great wall tooth groove (6-2).

7. A high bond strength substrate according to claim 1, wherein: the tooth protection bulge (7-1) is rectangular.