Nanocrystalline grain hard alloy three-edge welding cutter

Abstract

The utility model relates to the technical field of wood material cutting tools, and discloses a nano-grain hard alloy three-blade welding tool which comprises a fixing handle, the fixing handle is connected with a fixing cylinder through a fixing assembly, the right end of the fixing cylinder is fixedly connected with a circular arc transition handle, the right end of the circular arc transition handle is fixedly connected with a transition rod, and the transition rod is fixedly connected with a cutting head. A plurality of cutting edges are fixedly connected to the outer wall of the transition rod, a plurality of chip breaker grooves are formed in the inner walls of the cutting edges, an end edge angle a is arranged at the end edge part of each cutting edge, the angle of each end edge a is 2-8 degrees, a front angle b is arranged on the outer wall of each cutting edge, and the angle of each front angle b is 12-20 degrees. According to the utility model, the cutting edges are made of nano-grain hard alloy, the design of three straight cutting edges is adopted, and the cutting edges are provided with cutting grooves, so that the surface smoothness of a processed plate is higher, the applicable space of processing is wider, the cutting is more accurate, the cost of the cutter is reduced, and the efficiency of the cutter is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wood material cutting tools, in particular to a nano-grain hard alloy three-blade welding tool. Background Art

[0002] With the rise of customized furniture, the functional software system of CNC cutting machines has become more mature. Its advantages such as high efficiency, multiple processes and labor saving have made more and more factories choose CNC cutting to replace the original sliding table saws, panel saws and other cutting machines. In the production process of CNC cutting machines, one of the important consumable accessories is the cutting knife. The cutting tools are now very mature, with two-edged, three-edged, straight groove, cross-edged and other different cutting edges and different specifications.

[0003] Cutting tools have now developed very maturely. They have two-edged, three-edged, straight groove, transverse edge and other different cutting edges and different specifications. A very important part of them is the cutting part. At present, the cutting part of most cutting tools in China is made of integral alloy, and the processing cost is relatively high. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a nano-grain hard alloy three-blade welding tool.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a nano-grain carbide three-blade welding tool, comprising a fixed handle, a circular arc transition handle is fixedly connected to the right end of the fixed handle, a plurality of cutting edges are fixedly connected to the outer wall of the circular arc transition handle, and a plurality of chip breaking grooves are arranged on the inner wall of the cutting edge.

[0006] As a further description of the above technical solution:

[0007] The end edge portion of the cutting edge is provided with an end edge angle a, and the angle of the end edge a is 2°-8°.

[0008] As a further description of the above technical solution:

[0009] The outer wall of the cutting edge is provided with a rake angle b, and the rake angle b is 12°-20°.

[0010] As a further description of the above technical solution:

[0011] The back side of the cutting edge is provided with a back angle c, and the back angle c is 15°-23°.

[0012] As a further description of the above technical solution:

[0013] The material of the cutting edge is set to be nano-grained cemented carbide.

[0014] As a further description of the above technical solution:

[0015] The outer wall of the fixing handle is fixedly connected with a positioning plate.

[0016] As a further description of the above technical solution:

[0017] The cutting edges are staggered with each other.

[0018] The utility model has the following beneficial effects:

[0019] 1. In the utility model, the cutting edge is firstly made of nano-grain cemented carbide, and three straight cutting edges are designed. The cutting edge has a chip breaker design, so the surface finish of the processed plate is higher, the applicable space for processing is wider, the cutting is more accurate, the tool cost is reduced, and the tool efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional diagram of the nano-grained carbide three-edged welding tool proposed by the utility model;

[0021] Figure 2 This is a schematic diagram of the fixed barrel structure of the nano-grained carbide three-edge welding tool proposed by the utility model;

[0022] Figure 3 This is a schematic diagram of the arc transition handle structure of the nano-grained carbide three-edge welding tool proposed by the utility model;

[0023] Figure 4 This is a schematic diagram of the cutting tool structure of the nano-grain carbide three-edge welded tool proposed by the utility model.

[0024] Legend:

[0025] 1. Fixed handle; 2. Positioning plate; 3. Arc transition handle; 4. Cutting edge; 5. Chip breaker groove. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0028] Reference Figure 1-4 The utility model provides an embodiment: a nano-grain cemented carbide three-blade welding tool, comprising a fixed handle 1, a circular arc transition handle 3 is fixedly connected to the right end of the fixed handle 1, a plurality of cutting edges 4 are fixedly connected to the outer wall of the circular arc transition handle 3, a plurality of chip breaker grooves 5 are arranged on the inner wall of the cutting edge 4, an end edge angle a is arranged at the end edge of the cutting edge 4, the angle of the end edge a is 2°-8°, a front angle b is arranged on the outer wall of the cutting edge 4, the angle of the front angle b is 12°-20°, a back angle c is arranged on the back of the cutting edge 4, the angle of the back angle c is 15°-23°, the material of the cutting edge 4 is set to nano-grain cemented carbide material, a positioning plate 2 is fixedly connected to the outer wall of the fixed handle 1, and the cutting edges 4 are staggered with each other.

[0029] Specifically, the cutting edge 4 is made of nano-grain cemented carbide with a hardness not less than HRA94, which can improve the service life of the tool. The blade and the tool body are subjected to high-frequency welding. The cutting edge 4 is provided with an asymmetric chip breaker 5. Each cutting edge 4 is staggered to enhance the chip cutting effect. The chip breaker 5 can achieve better chip breaking and chip removal during processing. The tool body is made of alloy steel that has been heat-treated, which is sharp and does not break. The tool entry method can be vertical cutting and direct drilling to protect the surface of the processed plate from bursting. The shank of the cutting edge 4 is provided with a positioning plate 2, which can position and fix the shank 1 to the end face. The length of the tool is consistent when the user is using it, which is convenient for positioning and installation when replacing the tool, reducing the time for tool positioning and installation, and improving efficiency. The arc transition handle 3 can increase the strength of the tool and facilitate the discharge of debris generated by the cutting of the blade part extending from the front end. The end edge of the cutting edge 4 is provided with an end edge angle a with an angle of 2°-8°, which makes it easier for the tool to cut during drilling and avoids blackening of the processed part, thereby making the surface finish of the processed plate smoother, the applicable space for processing is wider, the cutting is more accurate, the cut plate does not break, reducing the tool cost and improving the tool efficiency.

[0030] Working principle: The cutting edge 4 is made of nano-grained carbide with a hardness not less than HRA94, which can improve the service life of the tool. The blade and the tool body are processed by high-frequency welding. The cutting edge 4 is provided with an asymmetric chip breaker 5. Each cutting edge 4 is staggered to enhance the chip cutting effect. The chip breaker 5 can achieve better chip breaking and chip removal during processing. The tool body is made of alloy steel after heat treatment, which is sharp and does not break. The tool can be cut vertically and drilled directly to protect the surface of the processed plate from bursting. The shank of the cutting edge 4 is provided with a positioning plate 2, which can position and fix the shank 1 to the end face. The length of the tool is consistent when the user is using it, which is convenient for positioning and installation when replacing the tool, reducing the time for tool positioning and installation, and improving efficiency. The arc transition handle 3 can increase the strength of the tool and facilitate the discharge of debris generated by the cutting of the blade part extending from the front end. The end edge of the cutting edge 4 is provided with an end edge angle a with an angle of 2°-8°, which makes it easier for the tool to cut during drilling and avoids blackening of the processed part, thereby making the surface finish of the processed plate smoother, the applicable space for processing is wider, the cutting is more accurate, the cut plate does not break, reducing the tool cost and improving the tool efficiency.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A nano-grained carbide three-edged welding tool, comprising a fixed handle (1), characterized in that: The right end of the fixed handle (1) is fixedly connected to a circular arc transition handle (3); the outer wall of the circular arc transition handle (3) is fixedly connected to a plurality of cutting edges (4); the inner wall of the cutting edge (4) is provided with a plurality of chip breaker grooves (5); the end edge portion of the cutting edge (4) is provided with an end edge angle a, and the angle of the end edge a is 2°-8°; the outer wall of the cutting edge (4) is provided with a front angle b, and the angle of the front angle b is 12°-20°; the back side of the cutting edge (4) is provided with a back angle c, and the angle of the back angle c is 15°-23°; the material of the cutting edge (4) is set to be a nano-grained cemented carbide material.

2. The nano-grained carbide three-edge welding tool according to claim 1, characterized in that: A positioning plate (2) is fixedly connected to the outer wall of the fixed handle (1).

3. The nano-grained carbide three-edge welding tool according to claim 1, characterized in that: The cutting edges (4) are staggered with each other.

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