Wave-edge cutting blade

Abstract

The utility model belongs to the technical field of cutting tools, and relates to a wave-shaped edge cutting blade which comprises an upper end face, a lower end face and a through hole penetrating through the upper end face and the lower end face, two wave-shaped cutting edges extending along the acute angle edge are arranged at the acute angle position of the upper end face, and a wave groove protruding part is arranged at the acute angle position of the upper end face. Cuttings flow out from the wave-shaped cutting edges, the cuttings are extruded through the convex arc vertexes of the wave-shaped cutting edges to form textures, breakage of the cuttings is accelerated, and cutting fluid can flow in from the concave arc to precisely cool the cutting position of the blade; cuttings which are extruded at the wave-shaped cutting edge to form lines flow to the concave arc surface of the convex part of the wave-shaped groove to form a clearance state, and heat on the cuttings is dissipated at the clearance, so that the heat transferred to the blade is reduced, and the service life of the blade is prolonged; and the tops of the convex arc surfaces of the convex parts of the wave grooves are used for carrying out secondary extrusion on cuttings with marks, so that the fracture of the cuttings is accelerated, and a good cutting effect is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of cutting tools, and particularly relates to a waveform edge cutting blade. Background Art

[0002] The metal cutting process is a process of interaction between the workpiece and the cutting tool. One of the factors for successful metal cutting is that the cutting tool is more stable and harder than the workpiece. With the development of technology, the current workpiece materials are becoming more and more complex. The application of difficult-to-machine materials represented by superalloys has emerged. Superalloy materials are widely used in industries such as aviation, aerospace, shipbuilding, and energy. Superalloys have characteristics such as low thermal conductivity and high high-temperature chemical activity. When the cutting tool cuts it, there are problems such as large cutting force, high cutting temperature, serious tool wear due to work hardening, and poor chip breaking effect. It is one of the typical difficult-to-machine materials. Using the cutting tools on the market to cut superalloys often wastes more tools and has a higher cost than cutting other material workpieces. Content of the Utility Model

[0003] To solve the problems existing in the prior art, the main purpose of the utility model is to propose a waveform edge cutting blade, which has a special cutting edge and a special chip breaking groove, and can meet the difficult-to-machine requirements of superalloy materials.

[0004] To solve the above technical problems, according to one aspect of the utility model, the following technical solutions are provided:

[0005] A waveform edge cutting blade includes an upper end face, a lower end face, and a through hole penetrating the upper end face and the lower end face. At the acute angle of the upper end face, two waveform cutting edges extending along the acute angle side are provided, and an arc cutting edge is connected between the two waveform cutting edges. At the acute angle of the upper end face, a wave groove protrusion is provided.

[0006] As a preferred scheme of the waveform edge cutting blade described in the utility model, wherein: the waveform cutting edge is composed of a plurality of convex arcs and concave arcs tangent to each other.

[0007] As a preferred scheme of the waveform edge cutting blade described in the utility model, wherein: the distance between adjacent convex arcs increases from the corner outwards.

[0008] As a preferred scheme of the waveform edge cutting blade described in the utility model, wherein: the distance between adjacent concave arcs increases from the corner outwards.

[0009] As a preferred scheme of the waveform edge cutting blade described in the utility model, wherein: the wave groove protrusion is composed of a plurality of convex arc surfaces and concave arc surfaces tangent to each other.

[0010] As a preferred embodiment of the waveform-edge cutting blade of the present utility model, among them: the distances between adjacent convex arc surfaces after a certain distance from the acute angle are equal.

[0011] As a preferred embodiment of the waveform-edge cutting blade of the present utility model, among them: the distances between adjacent concave arc surfaces after a certain distance from the acute angle are equal.

[0012] The beneficial effects of the present utility model are as follows:

[0013] The present utility model provides a waveform-edge cutting blade, which includes an upper end face, a lower end face, and a through hole penetrating the upper end face and the lower end face. At the acute angle of the upper end face, two waveform cutting edges extending along the acute angle side are provided, and an arc cutting edge is connected between the two waveform cutting edges. At the acute angle of the upper end face, a wave groove protrusion is provided. When the cutting blade cuts a workpiece made of superalloy material, the chip flows out from the waveform cutting edge. When the chip passes through the waveform cutting edge, the convex arc vertex of the waveform cutting edge squeezes the chip to form a trace, accelerating the fracture of the chip. A large amount of cutting fluid will flow into the concave arc, accurately cooling the cutting part of the blade; the chip with traces formed by extrusion at the waveform cutting edge flows to the wave groove protrusion, and a clearance state is formed at the concave arc surface of the wave groove protrusion. At this time, a large amount of heat on the chip dissipates at the clearance, reducing the heat transferred to the blade, thereby increasing the life of the blade; the convex arc surface top of the wave groove protrusion performs secondary extrusion on the chip with traces, thereby accelerating the fracture of the chip and achieving a good cutting effect. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0015] Figure 1 is a perspective view of the waveform-edge cutting blade of the present utility model.

[0016] Figure 2 is a top view of the waveform-edge cutting blade of the present utility model.

[0017] Figure 3 is Figure 2 the enlarged view of part A in

[0018] Figure 4 is the enlarged view of the acute angle of the waveform-edge cutting blade of the present utility model.

[0019] Among them, 1 - upper end face, 2 - lower end face, 3 - through hole, 4 - waveform cutting edge, 5 - arc, 6 - wave groove convex part, 7 - convex arc, 8 - concave arc.

[0020] The realization of the purpose, functional characteristics and advantages of the present utility model will be further described with reference to the accompanying drawings in conjunction with embodiments. Specific embodiments

[0021] The technical solutions in the embodiments will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0022] The present utility model provides a waveform edge cutting blade as Figures 1-4 shown, including an upper end face 1, a lower end face 2, and a through hole 3 penetrating the upper end face 1 and the lower end face 2. At the acute angle of the upper end face 1, two waveform cutting edges 4 extending along the acute angle side are provided, so that the main cutting edge of the cutting blade has a smooth wave-shaped morphology with alternating high and low levels. An arc cutting edge 5 is connected between the two waveform cutting edges 4. At the acute angle of the upper end face 1, a wave groove convex part 6 is provided, so that the chip breaker platform of the cutting blade has a wave-shaped undulating morphology with alternating high and low levels.

[0023] In an embodiment of the present utility model, the waveform cutting edge 4 is composed of a plurality of convex arcs 7 and concave arcs 8 connected tangentially. When the cutting blade cuts a workpiece made of superalloy material, a large amount of heat will be generated. At this time, the cutting fluid will be used for cooling. The waveform cutting edge 4 of the cutting blade is composed of a plurality of convex arcs 7 and concave arcs 8 connected tangentially. A large amount of cutting fluid will flow in at the concave arc 8 to accurately cool the cutting part of the blade, thereby achieving a good cutting effect.

[0024] In an embodiment of the present utility model, the distance between adjacent convex arcs 7 increases from the corner outwards, as Figure 4 shown, H1 < H2; the distance between adjacent concave arcs 8 increases from the corner outwards, as Figure 4 shown, h1 < h2.

[0025] In an embodiment of the present utility model, the wave groove convex part 6 is composed of a plurality of convex arc surfaces and concave arc surfaces connected tangentially; the distance between adjacent convex arc surfaces after a certain distance (for example, 2.7 mm) from the acute angle is equal, as Figure 3 shown, S1 = S2; the distance between adjacent concave arc surfaces after a certain distance (for example, 2.7 mm) from the acute angle is equal, as Figure 3 shown, f1 = f2.

[0026] When the cutting blade cuts a workpiece made of superalloy material, the chip flows out from the waveform cutting edge 4. When the chip passes through the waveform cutting edge 4, the vertex of the convex arc 7 of the waveform cutting edge 4 squeezes the chip to form a trace, accelerating the fracture of the chip. When the cutting blade cuts a workpiece made of superalloy material, the chip carries a large amount of heat. The chip with the trace formed by squeezing at the waveform cutting edge 4 flows towards the wave groove protrusion 6. An air clearance state is formed at the concave arc surface of the wave groove protrusion 6. At this time, a large amount of heat on the chip dissipates at the air clearance, reducing the heat transferred to the blade, thereby increasing the life of the blade. The top of the convex arc surface of the wave groove protrusion 6 performs secondary squeezing on the chip with the trace, thereby accelerating the fracture of the chip. A good cutting effect is achieved.

[0027] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made by using the content of the specification of the present invention under the inventive concept of the present invention, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. A wavy-edged cutting blade, characterized in that: The invention comprises an upper end face (1), a lower end face (2), and a through hole (3) penetrating the upper end face (1) and the lower end face (2); two corrugated cutting edges (4) extending along the acute angle are arranged at the acute angle of the upper end face (1); a circular arc cutting edge (5) is arranged between the two corrugated cutting edges (4); and a corrugated groove protrusion (6) is arranged at the acute angle of the upper end face (1).

2. The wavy-edge cutting insert according to claim 1, characterized in that: The corrugated cutting edge (4) is composed of a plurality of convex circular arcs (7) and concave circular arcs (8) connected tangentially.

3. The wavy-edge cutting insert according to claim 2, characterized in that: The distance between adjacent convex arcs (7) increases gradually from the corner to the outside.

4. The wavy-edge cutting insert according to claim 2, characterized in that: The distance between adjacent concave arcs (8) increases gradually from the corner to the outside.

5. The wavy-edge cutting insert according to claim 1, characterized in that: The wave groove convex part (6) is composed of a plurality of convex arc surfaces and concave arc surfaces connected tangentially.

6. The wavy-edge cutting insert according to claim 5, characterized in that: The distances between adjacent convex arc surfaces at a certain distance from the acute angle are equal.

7. The wavy-edge cutting insert according to claim 5, characterized in that: The distances between adjacent concave arc surfaces at a certain distance from the acute angle are equal.

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