Impact-resistant diamond saw blade

Abstract

The utility model discloses an impact-resistant diamond saw blade which comprises a saw blade base body, a plurality of sawtooth welding tables distributed in a circumferential array mode are arranged on the edge of the saw blade base body, sawteeth are arranged on each sawtooth welding table, and a plurality of key hole water grooves distributed in a circumferential array mode are formed in the surface of the saw blade base body. A copper nail is arranged in a round hole of each key hole water groove, each sawtooth comprises a matrix, and mixed powder and diamond are distributed on the surface of each matrix. The copper nail is embedded in the round hole of the water groove of the key hole, and the copper nail is soft and plays a good buffering role, so that the phenomenon that stress at the bottom hole of the water groove is excessively concentrated during saw cutting is eliminated, cracks caused by local stress concentration are avoided, and the impact resistance of the saw blade is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of cutting tools, in particular to an impact-resistant diamond saw blade. Background Art

[0002] Diamond saw blade is a kind of sawing tool, which is widely used in cutting hard and brittle materials such as concrete, refractory materials, stone, ceramics, etc. Diamond saw blade is mainly composed of two parts: base and cutter head. The cutter head is generally composed of matrix alloy and a certain proportion of diamond particles. The diamond particles can be cut by the matrix alloy holding the diamond particles.

[0003] At present, the quality of diamond circular saw blades used for cutting is unstable, mainly manifested in poor strength, poor impact resistance and short service life. Utility Model Content

[0004] The utility model aims to provide an impact-resistant diamond saw blade 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: an impact-resistant diamond saw blade, comprising a saw blade base, a plurality of sawtooth welding pads distributed in a circular array are arranged at the edge of the saw blade base, each of the sawtooth welding pads is provided with saw teeth, and a plurality of keyhole water grooves distributed in a circular array are arranged on the surface of the saw blade base, a copper nail is arranged in the circular hole of each of the keyhole water grooves, the saw teeth include a matrix, and mixed powder and diamonds are distributed on the surface of the matrix.

[0006] Preferably, a mounting hole is provided at the center of the surface of the saw blade base.

[0007] Preferably, the copper nail is embedded in the keyhole sink.

[0008] Preferably, the mixed powder is formed by mixing cobalt and tungsten carbide powder.

[0009] Preferably, the serrated welding is on a serrated welding platform.

[0010] The impact-resistant diamond saw blade of the utility model has the following advantages:

[0011] 1. The utility model embeds copper nails in the round holes of the keyhole sink. Since the copper nails are soft, they play a good buffering role, so that the phenomenon of excessive stress concentration at the bottom hole of the sink during sawing can be eliminated, and cracks caused by local stress concentration can be avoided, which greatly improves the impact resistance of the saw blade and greatly prolongs the service life of the diamond saw blade.

[0012] 2. By mixing cobalt with tungsten carbide powder, and then mixing it with matrix powder, molding and sintering, this method can not only improve the strength of the diamond, but also reduce the elastic deformation of the matrix under the diamond, thereby reducing the matrix's ability to eject the diamond, and also save the cobalt powder in the matrix. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] 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.

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 for Figure 1 A magnified view of middle;

[0016] Figure 3 It is a structural schematic diagram of the sawtooth in the utility model;

[0017] Explanation of the markings in the figure: 1. Saw blade base; 2. Mounting hole; 3. Sawtooth soldering station; 4. Saw teeth; 5. Keyhole sink; 6. Copper nail; 7. Carcass; 8. Mixed powder; 9. Diamond. 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 position relationship are based on the orientation or position 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 technical features indicated. Therefore, a feature defined as "first" or "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 impact-resistant diamond saw blade of the utility model is further described in detail below in conjunction with the accompanying drawings.

[0024] like Figure 1-3As shown, an impact-resistant diamond saw blade of the utility model comprises a saw blade base 1, a mounting hole 2 is arranged at the center of the surface of the saw blade base 1, a plurality of sawtooth soldering bases 3 distributed in a circular array are arranged at the edge of the saw blade base 1, each sawtooth soldering base 3 is provided with saw teeth 4, and the saw teeth 4 are welded to the sawtooth soldering base 3, a plurality of keyhole water grooves 5 distributed in a circular array are arranged on the surface of the saw blade base 1, a copper nail 6 is arranged in the circular hole of each keyhole water groove 5, and the copper nail 6 is embedded in the keyhole water groove 5. Since the copper nail 6 is relatively soft, it plays a good buffering role, so that the phenomenon of excessive stress concentration at the bottom hole of the water groove during sawing can be eliminated, and cracks caused by local stress concentration can be avoided, thereby greatly improving the impact resistance of the saw blade. The sawtooth 4 includes a matrix 7, on the surface of which mixed powder 8 and diamond 9 are distributed. The mixed powder 8 is formed by mixing cobalt and tungsten carbide powder. The cobalt and tungsten carbide powders are mixed, and then mixed with matrix powder, molded and sintered. This method can not only improve the strength of the diamond, but also reduce the elastic deformation of the matrix 7 on the matrix under the diamond 9, thereby reducing the matrix's ability to eject the diamond, and also saves the cobalt powder in the matrix.

[0025] 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. An impact-resistant diamond saw blade, characterized in that: The invention comprises a saw blade base (1), wherein a plurality of sawtooth soldering bases (3) distributed in a circumferential array are arranged at the edge of the saw blade base (1), and each of the sawtooth soldering bases (3) is provided with a saw tooth (4), and a plurality of keyhole water grooves (5) distributed in a circumferential array are arranged on the surface of the saw blade base (1), and a copper nail (6) is arranged in the circular hole of each of the keyhole water grooves (5), and the saw tooth (4) comprises a matrix (7), and a mixed powder (8) and diamond (9) are distributed on the surface of the matrix (7).

2. The impact-resistant diamond saw blade according to claim 1, characterized in that: A mounting hole (2) is provided at the center of the surface of the saw blade base (1).

3. The impact-resistant diamond saw blade according to claim 1, characterized in that: The copper nail (6) is embedded in the keyhole sink (5).

4. The impact-resistant diamond saw blade according to claim 1, characterized in that: The saw teeth (4) are welded to the saw tooth welding platform (3).

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