Saw blade milling cutter and hexagonal surface machining device

Abstract

The utility model belongs to the technical field of turning and milling cutters, and particularly relates to a saw blade milling cutter and a hexagonal surface processing device, which comprise a saw blade body, a plurality of continuous blade teeth are circumferentially arranged on the arc-shaped surface of the saw blade body, and the blade teeth are inclined towards the same clock direction and are spirally arranged on the arc-shaped surface. An inclined blade is arranged on one side of each blade tooth, an included angle of 45 degrees is formed between each inclined blade and the end face of the saw blade body, and a coupling hole is formed in the axis of the saw blade body. The inclined edge forming the 45-degree included angle with the end face of the saw blade body is arranged on one side of the edge tooth, when a material is axially cut along with the edge peak, a standard chamfer can be formed at the end of the material at the same time, two planes are machined through one-time cutter action, the cutting frequency and the machining time are reduced, and the machining efficiency is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of turning and milling cutters, and particularly relates to a saw blade milling cutter and a hexagonal surface processing device. Background Art

[0002] A saw blade milling cutter is both a saw blade and a milling cutter, which is a product belonging to both. Most saw blade milling cutters are made of materials such as W6Mo5Cr4V2 or high-speed steel with equivalent performance, cemented carbide, etc. Although cemented carbide has higher hardness and stronger cutting force than high-speed steel, it can increase the rotation speed and feed rate, thereby improving productivity. However, the tool deflection is not obvious. Although it can machine difficult-to-machine materials such as stainless steel and titanium alloy, the cost is higher, and it is prone to tool breakage under the condition of rapid alternating cutting force.

[0003] In a structure of an alloy saw blade milling cutter disclosed in Patent CN206028834U, which is simple in structure, low in cost, good in processing effect and stable and reliable in operation, it includes a milling cutter disc, a plurality of saw blade milling cutters arranged on the milling cutter disc, and a mounting hole arranged at the center position of the milling cutter disc. Concave recesses are respectively formed on both sides of the body of the milling cutter disc near the edge part, and the milling cutter disc and the saw blade milling cutter are integrally formed; compared with the prior art, by adopting the saw blade milling cutter structure in the above structural form, the quality can be reduced, the processing rotation speed can be increased, the cutting power of the machine tool can be reduced, and when cutting a larger workpiece or machining a deeper U-shaped groove, the surface finish and flatness of both sides of the workpiece can be effectively guaranteed.

[0004] In the above solution, the saw blade milling cutter structure can reduce its quality, increase the processing rotation speed, reduce the cutting power of the machine tool, and when cutting a larger workpiece or machining a deeper U-shaped groove, the surface finish and flatness of both sides of the workpiece can be effectively guaranteed. However, only a single-direction cutting edge surface is provided on the saw blade edge, and more cutting rounds are required when machining a multi-plane structure, and the overall efficiency cannot be guaranteed. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the above problems by providing a saw blade milling cutter and a hexagonal surface processing device that can solve the above technical problems.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A saw blade milling cutter, including a saw blade body, a plurality of continuous cutting teeth are circumferentially arranged on the arc surface of the saw blade body, each cutting tooth inclines in the same clockwise direction and is arranged in a spiral shape on the arc surface, a diagonal edge is opened on one side of the cutting tooth, the diagonal edge forms an angle of 45° with the end face of the saw blade body, and a coupling hole is opened on the axis line of the saw blade body.

[0008] In the described saw blade milling cutter, the cutting tooth includes a cutting back surface and a cutting flank surface. The connection between the cutting back surface and the cutting flank surface forms a cutting edge peak. The cutting edge peak is helically curved on the arc surface. The cutting back surface is connected to the cutting flank surface of the adjacent cutting tooth through an arc-shaped cutting valley.

[0009] In the described saw blade milling cutter, the cutting back surface includes a first back surface and a second back surface that are connected. The first back surface is connected to the cutting flank surface at the cutting edge peak. The second back surface is tangent to the arc surface of the cutting valley.

[0010] In the described saw blade milling cutter, the angle between the line connecting the cutting edge peak to the center of the saw blade body and the cutting flank surface is 8°.

[0011] In the described saw blade milling cutter, the angle between the line connecting the cutting edge peak to the center of the saw blade body and the first back surface is 75°.

[0012] In the described saw blade milling cutter, the angle between the line connecting the cutting edge peak to the center of the saw blade body and the second back surface is greater than 8° and less than 75°.

[0013] In the described saw blade milling cutter, the inclined cutting edge starts from the first back surface, passes through the second back surface and the cutting flank surface to the end surface of the saw blade body. The connection between the inclined cutting edge and the cutting flank surface forms an inclined cutting edge opening.

[0014] The present utility model also provides a hexagonal surface processing device, and the hexagonal surface processing device includes the described saw blade milling cutter.

[0015] In the described hexagonal surface processing device, the two saw blade bodies are arranged in parallel. A driving link is fixedly connected in the coupling hole, and the two driving links are synchronously driven by a driving motor.

[0016] In the described hexagonal surface processing device, the inclined cutting edges on the two saw blade bodies are arranged in the same direction, and a processing gap is provided between the two saw blade bodies.

[0017] The advantages of the present utility model are as follows:

[0018] An inclined cutting edge with an angle of 45° with the end surface of the saw blade body is provided on one side of the cutting tooth. When the cutting edge peak axially invades the material, a standard chamfer can be formed at the end of the material at the same time. Two planes can be processed through one tool movement, reducing the number of tool feeds and processing time and ensuring the processing efficiency.

[0019] When multiple saw blade milling cutters are used in combination, it can also achieve one-time forming, which can greatly improve the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of the saw blade milling cutter of the present utility model.

[0021] Figure 2 This is a schematic diagram of the blade teeth structure of the present utility model.

[0022] Figure 3 This is a schematic diagram of the hexagon surface processing device of the present utility model.

[0023] In the illustration, there are saw blade body 1, blade teeth 2, inclined blade 21, blade back surface 22, blade belly surface 23, blade peak 24, blade valley 25, and coupling hole 3. Specific embodiments

[0024] The following are specific embodiments of the utility model and in combination with the accompanying drawings, the technical solutions of the present utility model will be further described, but the present utility model is not limited to these embodiments.

[0025] Embodiment 1

[0026] As Figure 1 - Figure 2 shown, a saw blade milling cutter includes a saw blade body 1. A number of continuous blade teeth 2 are circumferentially arranged on the arc surface of the saw blade body 1. Each blade tooth 2 is inclined in the same clockwise direction and is arranged in a spiral shape on the arc surface. An inclined blade 21 is provided on one side of the blade tooth 2. The inclined blade 21 forms an angle of 45° with the end surface of the saw blade body 1. A coupling hole 3 is provided on the axis of the saw blade body 1.

[0027] That is, an inclined blade 21 with an angle of 45° is provided on one side of the entire circle of blade teeth 2. Whether cutting in from the axial direction or the radial direction of the pipe, a standard chamfer can be formed at the root of the formed pipe, and the processing of two surfaces can be completed with one cutting action, improving the processing efficiency of the pipe. Especially when cutting axially, the inclined blade 21 first contacts the pipe contour, and the smaller contact area has a greater pressure, making the cutting ability of the milling cutter stronger.

[0028] At the same time, the blade teeth 2 are distributed in a spiral shape with a small angle on the arc surface with the axis of the saw blade body 1 as the center, so that each part of the blade teeth 2 contacts the pipe successively during rotation, reducing the contact area with the pipe, increasing the pressure of the blade surface on the pipe, and making the pipe easier to be cut.

[0029] In this embodiment, the blade tooth 2 includes a blade back surface 22 and a blade belly surface 23. The junction of the blade back surface 22 and the blade belly surface 23 forms a blade peak 24. The blade peak 24 is spirally curved on the arc surface. The blade back surface 22 is connected to the blade belly surface 23 of the adjacent blade tooth 2 through an arc-shaped blade valley 25.

[0030] The blade teeth 2 are arranged in a shape that tilts in the same clockwise direction, with the small-area blade belly surface 23 and the large-area blade back surface 22 combined into an obtuse triangle shape, making the blade peak 24 protrude in the rotation direction of the saw blade, forming a better force-bearing structure.

[0031] In this embodiment, the back face 22 of the blade includes a first back face and a second back face that are connected. The first back face is connected to the flank face 23 of the blade at the blade tip 24, and the second back face is tangent to the arc surface of the blade gullet 25.

[0032] During the chamfering process, the back face 22 of the blade is mainly subjected to the extrusion pressure in contact with the pipe fitting. Therefore, the back face 22 of the blade is set as two arched planes to withstand the pressure during chip removal, making the blade teeth 2 have stronger stability.

[0033] The blade gullet 25 between the two blade teeth 2 also has an axial spiral shape. During the cutting process, the debris remaining in the blade gullet 25 can be axially discharged through the rotating spiral channel.

[0034] Among them, the arc surface design of the blade gullet 25 can make the debris easier to be discharged, avoiding the debris getting stuck in the blade gullet 25.

[0035] In this embodiment, the angle between the line connecting the blade tip 24 to the center of the saw blade body 1 and the flank face 23 is 8°, the angle between the line connecting the blade tip 24 to the center of the saw blade body 1 and the first back face is 75°, and the angle between the line connecting the blade tip 24 to the center of the saw blade body 1 and the second back face is greater than 8° and less than 75°.

[0036] This enables the blade teeth 2 to form the best stress state and ensures the structural strength of the saw blade milling cutter.

[0037] In this embodiment, the inclined blade 21 starts from the first back face, passes through the second back face and the flank face 23 to the end face of the saw blade body 1, and the connection between the inclined blade 21 and the flank face 23 forms an inclined blade edge.

[0038] That is, a pentahedron is obliquely cut off starting from the first back face, forming a quadrilateral plane on the blade tooth 2, and the side connected to the flank face 23 serves as the second blade edge in addition to the blade tip 24. The quadrilateral plane forms a 45° angle with the end face of the saw blade body 1, which can just produce a standard chamfer during the chamfering process.

[0039] Embodiment 2

[0040] As Figure 3 shown, the technical solution of Embodiment 1 is used in the hexagon face processing device. The two saw blade bodies 1 are arranged in a plane, and two driving link rods are respectively fixedly connected to the saw blade coupling holes 3. The two driving link rods are synchronously driven by a driving motor to ensure that the two saw blades have the same rotational speed.

[0041] In this embodiment, the inclined blades 21 on the two saw blade bodies 1 are arranged in the same direction, and a processing gap is provided between the two saw blade bodies 1. The processing gap is adjusted according to the size of the pipe fitting, and the opposite two faces of the hexahedron can be cut simultaneously.

[0042] Of course, the processing device is not limited to processing hexahedrons. One can choose a single saw blade or a double saw blade according to the number of surfaces to be processed as needed, and operate after adjusting the distance from the pipe fitting.

[0043] The specific embodiments described herein are merely illustrative of the spirit of the present utility model. Those skilled in the technical field to which the present utility model pertains can make various modifications or supplements to the described specific embodiments or use similar means for substitution, but will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

Claims

1. A saw blade milling cutter, comprising a saw blade body (1), characterized in that, On the arc surface of the saw blade body (1), a number of continuous cutting teeth (2) are circumferentially arranged. Each of the cutting teeth (2) is inclined in the same clockwise direction and is arranged in a spiral shape on the arc surface. An inclined edge (21) is provided on one side of the cutting tooth (2). The inclined edge (21) forms an angle of 45° with the end face of the saw blade body (1). A coupling hole (3) is provided on the axis of the saw blade body (1).

2. The saw blade milling cutter according to claim 1, characterized in that, The cutting tooth (2) includes a back edge surface (22) and a belly edge surface (23). The junction of the back edge surface (22) and the belly edge surface (23) forms a cutting edge peak (24). The cutting edge peak (24) is spirally bent on the arc surface. The back edge surface (22) is connected to the belly edge surface (23) of the adjacent cutting tooth (2) through an arc-shaped edge valley (25).

3. The saw blade milling cutter according to claim 2, wherein The back edge surface (22) includes a first back surface and a second back surface that are connected. The first back surface is connected to the belly edge surface (23) at the cutting edge peak (24). The second back surface is tangent to the arc surface of the edge valley (25).

4. The saw blade milling cutter according to claim 3, characterized in that, The angle between the line connecting the cutting edge peak (24) to the center of the circle of the saw blade body (1) and the belly edge surface (23) is 8°.

5. The saw blade milling cutter according to claim 3, characterized in that, The angle between the line connecting the cutting edge peak (24) to the center of the circle of the saw blade body (1) and the first back surface is 75°.

6. The saw blade milling cutter according to claim 3, characterized in that, The angle between the line connecting the cutting edge peak (24) to the center of the circle of the saw blade body (1) and the second back surface is greater than 8° and less than 75°.

7. The saw blade milling cutter according to claim 3, characterized in that, The inclined edge (21) starts from the first back surface, passes through the second back surface and the belly edge surface (23), and reaches the end face of the saw blade body (1). The connection between the inclined edge (21) and the belly edge surface (23) forms an inclined edge cutting edge.

8. Hexagonal surface processing device, characterized in that, The hexagonal surface processing device includes the saw blade milling cutter according to any one of claims 1-7.

9. The hexagonal surface processing device according to claim 8, characterized in that, Two saw blade bodies (1) are arranged in parallel. A driving link is fixedly connected in the coupling hole (3). The two driving links are synchronously driven by a driving motor.

10. The hexagonal surface processing device according to claim 9, characterized in that, The inclined edges (21) on the two saw blade bodies (1) are arranged in the same direction. A processing gap is provided between the two saw blade bodies (1).

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