Diamond saw blade tool bit with long service life

Abstract

The utility model discloses a long-life diamond saw blade tool bit which comprises a tool bit body, at least three upper grooves are formed in the upper surface of the tool bit body in the path direction of the tool bit body, and at least two lower grooves are formed in the side, connected with a diamond saw blade base body, of the tool bit body. The upper grooves are distributed in the tool bit body in a circumferential array mode, and one lower groove is distributed between every two upper grooves. Through the arrangement of the upper groove, the contact area between the cutting acting surface of the tool bit body and an object to be cut is greatly reduced, the holding force of abrasive particles and the strength of the tool bit are kept, the service life of the tool bit is prolonged, meanwhile, the contact area of the cutting acting surface of the tool bit can be reduced, the abrasive particle finishing time is shortened, and the tail end of a binding agent is prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of diamond tool bits, in particular to a long-life diamond saw blade tool bit. Background Art

[0002] The diamond segment is the working body of the diamond saw blade. The segment of the diamond saw blade is composed of diamond and matrix binder. Diamond is a superhard material that acts as a cutting edge. The matrix binder plays the role of fixing the diamond. It is composed of metal element powder or metal alloy powder. Different compositions are called formulas. Depending on the different uses, the formula and diamond are different.

[0003] In stone cutting, general abrasive tools are often used to trim the outer periphery of the cutter head. However, for such trimming operations, the operating efficiency is inversely proportional to the area of ​​the cutting surface of the cutter head. Since the total surface of the original cutter head is a non-active surface, the trimming efficiency is low. In addition, the hardness of the diamond and CBN abrasive grains that make up the cutter head is harder than that of general abrasive tools, accounting for 70%-90% of the total abrasive grains after trimming. The abrasive grains exist in a protruding state on the cutting surface. When using such diamond cutting tools to cut materials, the following problems arise: after trimming, the sharpness is good, but with continuous cutting, the abrasive grains wear and fall off, the sharpness decreases, and the service life is short. Utility Model Content

[0004] The utility model aims to provide a diamond saw blade head with a long service life, so as to solve the technical problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the specific technical scheme of the utility model is as follows: a long-life diamond saw blade head, comprising a head body, the upper surface of the head body is provided with at least three upper grooves along its path direction, and the side of the head body connected to the diamond saw blade base is provided with at least two lower grooves.

[0006] Preferably, the upper grooves are distributed on the cutter head body in a circular array.

[0007] Preferably, a lower groove is distributed between every two upper grooves.

[0008] Preferably, the upper groove and the lower groove are both trapezoidal structures extending outward.

[0009] Preferably, the upper groove includes two symmetrically distributed inclined surfaces and a bottom surface located at the bottom of the two inclined surfaces, the two ends of the bottom surface are connected to the bottom of the inclined surfaces through a curved surface, and the structure of the lower groove is the same as that of the upper groove.

[0010] Preferably, the depth of the upper groove and the lower groove is 0.5-2 mm, and the radius of the curved surface is 1-2.5 mm.

[0011] The long-life diamond saw blade segment of the utility model has the following advantages:

[0012] 1. The utility model greatly reduces the contact area between the cutting surface of the cutter head body and the object to be cut by setting the upper groove, maintains the abrasive holding force and the strength of the cutter head, and extends the service life of the cutter head. At the same time, since the contact area of ​​the cutting surface of the cutter head can be reduced, the abrasive dressing time can be shortened, and the appearance of the tail end of the binder can be prevented. The groove structure is designed to be formed in a manner that gradually increases as the height of the cutter head decreases. In this way, the step difference and spacing between the upper groove and the flat part gradually become smaller, and stable cutting performance can be maintained continuously. Moreover, through the setting of the upper groove, a curved surface is formed at the connection between the bottom surface and the inclined surface of the concave portion formed on the outer peripheral surface of the cutter head, and residual cutting powder will not accumulate there, which is convenient for moving to the inclined surface of the concave portion, further improving the powder discharge efficiency. In addition, the impact generated by the cutting is dispersed and not concentrated in one place, thereby improving the strength of the cutter head.

[0013] 2. Since a lower groove is formed on the inner surface of the cutter head, it is convenient to supply water to the side of the diamond substrate during cutting, so that the central part at high temperature can be effectively cooled. In addition, the lower groove also forms a curved surface, so the impact generated during cutting is also dispersed instead of concentrated on the lower groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 for Figure 1 Front view of

[0017] Explanation of markings in the figure: 1. cutter head body; 2. upper groove; 3. lower groove; 4. inclined surface; 5. bottom surface; 6. curved surface. DETAILED DESCRIPTION

[0018] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0019] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0020] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0021] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0022] The disclosure below provides many different embodiments or examples for realizing different structures of the embodiments of the present utility model. In order to simplify the disclosure of the embodiments of the present utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present utility model. In addition, the embodiments of the present utility model can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0023] In order to better understand the purpose, structure and function of the utility model, the following is a further detailed description of a long-life diamond saw blade segment of the utility model in conjunction with the accompanying drawings.

[0024] like Figure 1-2As shown, a long-life diamond saw blade segment of the utility model comprises a segment body 1, the upper surface of the segment body 1 is provided with at least three upper grooves 2 along the path direction thereof, and at least two lower grooves 3 are provided on the side where the segment body 1 is connected to the diamond saw blade substrate. The upper grooves 2 are distributed on the segment body 1 in a circular array, and the upper grooves 2 include two symmetrically distributed inclined surfaces 4 and a bottom surface 5 located at the bottom of the two inclined surfaces 4, and the two ends of the bottom surface 5 are connected to the bottom of the inclined surfaces 4 by a curved surface 6, and the structure of the lower groove 3 is the same as that of the upper groove 2, and both the upper groove 2 and the lower groove 3 are trapezoidal structures extending outward, and the depth of the upper groove 2 and the lower groove 3 is 0.5-2mm, and the radius of the curved surface 6 is 1-2.5mm. By providing the upper groove 2, the contact area between the cutting action surface of the segment body 1 and the object to be cut is greatly reduced, the abrasive holding force and the segment strength are maintained, and the service life of the segment is extended. At the same time, since the contact area of ​​the cutting action surface of the cutter head can be reduced, the abrasive dressing time can be shortened, and the appearance of the tail end of the binder can be prevented, and the groove structure is designed to be gradually increased as the height of the cutter head decreases, so that the step difference and spacing between the upper groove 2 and the flat part gradually become smaller, and stable cutting performance can be maintained continuously. Through the setting of the upper groove 2, a curved surface 6 is formed at the connection between the bottom surface 5 and the inclined surface 4 of the recessed portion formed on the outer peripheral surface of the cutter head, and residual cutting powder will not accumulate here, which is convenient for moving to the recessed inclined surface 4, further improving the powder discharge efficiency. In addition, the impact generated by the cutting is dispersed and not concentrated in one place, thereby improving the strength of the cutter head.

[0025] A lower groove 3 is distributed between every two upper grooves 2. Since the lower groove 3 is formed on the inner circumference of the cutter head, it is convenient to supply water to the side of the diamond substrate during cutting, so that the central part at high temperature can be effectively cooled. In addition, the lower groove 3 also forms a curved surface 6, so the impact generated during cutting is also dispersed instead of being concentrated on the lower groove 3.

[0026] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A long-life diamond saw blade segment, characterized in that: The cutter head body (1) comprises a cutter head body (1), wherein the upper surface of the cutter head body (1) is provided with at least three upper grooves (2) along the path direction thereof, and the side of the cutter head body (1) connected to the diamond saw blade base is provided with at least two lower grooves (3); The upper grooves (2) are distributed on the cutter head body (1) in a circular array.

2. A long-life diamond saw blade segment according to claim 1, characterized in that: A lower groove (3) is distributed between every two upper grooves (2).

3. The long-life diamond saw blade segment according to claim 1, characterized in that: The upper groove (2) and the lower groove (3) are both trapezoidal structures extending outwards.

4. The long-life diamond saw blade segment according to claim 1, characterized in that: The upper groove (2) comprises two symmetrically distributed inclined surfaces (4) and a bottom surface (5) located at the bottom of the two inclined surfaces (4); the two ends of the bottom surface (5) are connected to the bottom of the inclined surfaces (4) via a curved surface (6); and the structure of the lower groove (3) is the same as that of the upper groove (2).

5. A long-life diamond saw blade segment according to claim 4, characterized in that: The depths of the upper groove (2) and the lower groove (3) are 0.5-2 mm, and the radius of the curved surface (6) is 1-2.5 mm.

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