Efficient milling cutter blade special for titanium alloy

Abstract

The utility model discloses a special efficient titanium alloy milling blade which comprises a blade body, the blade body is of a frustum structure, the larger end of the blade body is of an inwards-concave structure, a horizontal end table is formed in the center of the blade body, a cutting edge is formed at the intersection of the larger end of the blade body and each side wall, and a rounded-corner tool nose is formed between every two adjacent cutting edges. A chip breaking area is formed between the end table and each cutting edge. The blade body is of the directional frustum structure, the cutting edges and the rounded-corner tool noses are formed at the corners of the large end face of the blade body, and the four cutting edges and the rounded-corner tool noses can continuously cut materials at intervals in the rotary cutting process of the tool, so that the cutting force of each cutting edge and each rounded-corner tool nose is relatively small; by matching with the chip breaking area and the inclined side wall, cutting heat can be quickly dissipated, the cutting edges and the fillet tool nose can be always kept sharp, the cutting efficiency is high, the service life of the blade is long, and the blade is particularly suitable for milling materials difficult to machine such as titanium metal.

Description

TECHNICAL FIELD

[0001] The utility model relates to milling tool technical field, especially relates to titanium alloy special high -efficient milling blade. BACKGROUND

[0002] Titanium alloy is the difficult processing material of very wide application, and it is easy to appear work hardening, and the processing efficiency is low, and the thermal conductivity is poor, and it is easy to produce deformation and vibration in the processing process, and the chemical activity is higher, and it is easy to react with the tool material and produce the chip adhesion, and the tool wear aggravation such as characteristic, and the tool is compared to consume. For this reason, it is urgent to develop a kind of high -efficient milling tool suitable for titanium alloy processing. SUMMARY

[0003] In view of the above problems existing in prior art, the utility model provides titanium alloy special high -efficient milling blade, four cutting edges and round corner tool tips can sustain interval cutting workpiece in the tool rotation cutting process, so that the cutting force of each cutting edge and round corner tool tip is relatively small, cooperates chip breaking area and inclined side wall, and the cutting heat can be conveniently and quickly dissipated, can ensure that each cutting edge and round corner tool tip always maintains sharp state, cutting efficiency is high, and the service life of blade is long, especially suitable for milling processing of titanium metal and other difficult processing materials.

[0004] To solve the above technical problem, the utility model takes a technical scheme as follows:

[0005] Titanium alloy special high -efficient milling blade, including blade main part, the installation hole groove that is formed with the both ends of blade main part is passed through, wherein:

[0006] The blade main part is the structure of conical frustum, and the both ends thereof are square structure and the two adjacent side walls thereof are smoothly connected by an arc surface, the larger end of the blade main part is concave structure, and a horizontal end platform is formed at the center thereof, and the installation hole groove is arranged on the end platform;

[0007] The intersection of the larger end of the blade main part and each side wall forms a cutting edge, and a round corner tool tip is formed between two adjacent cutting edges;

[0008] The end platform and each cutting edge form a chip breaking area, each chip breaking area is smoothly connected with the end platform, and two adjacent chip breaking areas are smoothly connected.

[0009] As a further elaboration of the above technical scheme:

[0010] In the above technical scheme, each chip breaking area sequentially includes a first rake face, a second rake face, a chip flow surface and a groove bottom arc surface, the first rake face is connected with the cutting edge, and the groove bottom arc surface is connected with the end platform.

[0011] In the technical scheme, each first rake face forms a first rake angle with a horizontal plane, each first rake angle is between 1.5° and 4°; each second rake face forms a second rake angle with the horizontal plane, each second rake angle is between 3.5° and 8°; each side wall forms a relief angle with a vertical plane, each relief angle is between 10° and 20°.

[0012] In the technical scheme, each first rake face forms a first rake angle with a horizontal plane, each first rake angle is between 1.5° and 4°; each second rake face forms a second rake angle with the horizontal plane, each second rake angle is between 3.5° and 8°; each side wall forms a relief angle with a vertical plane, each relief angle is between 10° and 20°.

[0013] In the technical scheme, each first rake face forms a first rake angle with a horizontal plane, each first rake angle is between 1.5° and 4°; each second rake face forms a second rake angle with the horizontal plane, each second rake angle is between 3.5° and 8°; each side wall forms a relief angle with a vertical plane, each relief angle is between 10° and 20°.

[0014] In the technical scheme, each first rake face forms a first rake angle with a horizontal plane, each first rake angle is between 1.5° and 4°; each second rake face forms a second rake angle with the horizontal plane, each second rake angle is between 3.5° and 8°; each side wall forms a relief angle with a vertical plane, each relief angle is between 10° and 20°.

[0015] In the technical scheme, each first rake face forms a first rake angle with a horizontal plane, each first rake angle is between 1.5° and 4°; each second rake face forms a second rake angle with the horizontal plane, each second rake angle is between 3.5° and 8°; each side wall forms a relief angle with a vertical plane, each relief angle is between 10° and 20°.

[0016] In the technical scheme, each first rake face forms a first rake angle with a horizontal plane, each first rake angle is between 1.5° and 4°; each second rake face forms a second rake angle with the horizontal plane, each second rake angle is between 3.5° and 8°; each side wall forms a relief angle with a vertical plane, each relief angle is between 10° and 20°.

[0017] Compared with the prior art, the utility model discloses the beneficial effects are in: through the blade body is equipped with the direction's cone structure, and forms cutting edge and round nose point at its larger end face corner, four cutting edges and round nose point can sustain interval cutting workpiece in the cutting process of the tool rotation, make each cutting edge and round nose point cutting force relatively smaller, cooperate chip breaker area and the inclined side wall, the cutting heat is convenient for quick dissipation, can ensure that each cutting edge and round nose point always keep sharp state, cutting efficiency is high, and the service life of blade is long, especially suitable for processing titanium metal and other difficult processing material's milling. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the structural schematic diagram of this embodiment;

[0019] Figure 2 It is Figure 1 The enlarged structural schematic diagram of A part in it;

[0020] Figure 3 It is Figure 1 The sectional view structural schematic diagram of B-B in it;

[0021] Figure 4 is Figure 3 is an enlarged structural schematic view of the C part in the middle;

[0022] Figure 5 is a top structural schematic view of the embodiment.

[0023] In the figure: #100, blade body; #200, horizontal plane; #300, vertical plane; 1, larger end; 2, smaller end; 3, relief surface; 4, positioning surface; 5, curved surface; 6, cutting edge; 7, round nose; 8, mounting hole groove; 9, end platform; 10, chip breaking area; 12, first rake surface; 13, second rake surface; 14, chip flow surface; 15, groove bottom curved surface;

[0024] A1, first rake angle; A2, second rake angle; A3, relief angle; R, radius of round nose; A4, included angle between positioning surface and vertical plane;

[0025] L1, cutting edge width; L2, maximum distance between first rake surface and cutting edge; L3, maximum distance between second rake surface and cutting edge; L4, maximum distance between cutting edge and end platform. DETAILED DESCRIPTION

[0026] The utility model will be made further detailed description in combination with the drawings.

[0027] The embodiments described with reference to the drawings are exemplary and are intended to be used for explaining the present application and cannot be understood as a limitation of the present application. In the description of the present application, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first" and "second" are only for the purpose of description and cannot 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" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "several" and "a plurality of" is two or more, unless otherwise explicitly specified and limited. In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be a fixed connection, or it can be a detachable connection, or it can be integrally connected; it can be a mechanical connection, or it can be an electrical connection; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. In the present application, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature with respect to the second feature can include the direct contact of the first and second features, or it can include the indirect contact of the first and second features through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature with respect to the second feature include the vertical height of the first feature above and oblique to the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "lower", "lower" and "lower" of the first feature with respect to the second feature include the vertical height of the first feature below and oblique to the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0028] As Figures 1-3 shown, the titanium alloy special high-efficiency milling blade includes a blade body #100, and an installation hole slot 8 penetrating through both ends of the blade body #100 is formed on the blade body #100; wherein:

[0029] The blade body #100 is a frustum structure, both ends of which are square structures and both adjacent side walls thereof are smoothly connected by an arc surface 5. The larger end 1 of the blade body #100 is an inner recess structure, and a horizontal end platform 9 is formed at the center thereof, and the installation hole slot 5 is arranged on the end platform 9;

[0030] The larger end 1 of the blade body 100 is formed with a cutting edge 6 at the intersection with each side wall, and a rounded nose 7 is formed between two adjacent cutting edges 6;

[0031] A chip breaker 10 is formed between the end platform 9 and each cutting edge 6, each chip breaker 10 is smoothly connected with the end platform 9, and two adjacent chip breakers 10 are smoothly connected.

[0032] The utility model discloses a blade body is provided with the conical platform structure of direction, and the cutting edge 6 and the rounded nose 7 are formed at the corner of larger end face, four cutting edges 6 and rounded nose 7 can continuously interval cutting material piece in the cutting process of tool rotation, and the cutting force of each cutting edge 6 and rounded nose 7 is relatively small, cooperates chip breaker 10 and the inclined side wall, and cutting heat is convenient for cutting heat to radiate quickly, can ensure that each cutting edge 6 and rounded nose 7 always keep sharp state, and cutting efficiency is high, and the service life of blade is long, especially suitable for milling processing of titanium metal and other difficult processing materials.

[0033] Specifically, each chip breaker 10 includes a first rake surface 12, a second rake surface 13, a chip flow surface 14 and a groove bottom arc surface 15 in sequence, the first rake surface 12 is connected with the cutting edge 6, and the groove bottom arc surface 15 is connected with the end platform 9.

[0034] Further, a first rake angle A1 is formed between each first rake surface 12 and a horizontal plane 200, each first rake angle A1 is between 1.5° and 4°; a second rake angle A2 is formed between each second rake surface 13 and the horizontal plane 200, each second rake angle A2 is between 3.5° and 8°; a relief angle A3 is formed between each side wall and a vertical plane 300, each relief angle A3 is between 10° and 20°; the maximum distance L2 between each first rake surface 12 and the cutting edge 6 is between 0.1mm and 0.3mm; the maximum distance L3 between each second rake surface 13 and the cutting edge 6 is between 0.1mm and 0.3mm; the width L1 of each cutting edge is between 0.8mm and 1.2mm; the four cutting edges 6 are at the same height, and the maximum distance L4 between the four cutting edges 6 and the end platform 9 is between 0.3mm and 0.7mm; the radius R of each rounded nose 7 is between 1mm and 3mm.

[0035] In the embodiment, the width L1 of the cutting edge 6 is 0.28mm, the first rake angle A1 is 2.5°, the maximum distance L2 between the first rake surface 12 and the cutting edge 6 is 0.17mm, the second rake angle A2 is 5.0°, the maximum distance L3 between the second rake surface 13 and the cutting edge 6 is 0.91mm, the relief angle A3 is 15°, the radius R of the rounded nose 7 is 2.0mm, and the maximum distance L4 between the cutting edge 6 and the end platform 9 is 0.45mm.

[0036] Further, each side wall is formed with a rear flank surface 3 and a positioning surface 4 which are connected and not coplanar, each rear flank surface 3 is connected with each cutting edge 6 and two arc surfaces 5, and each positioning surface 4 is connected with the smaller end of the blade body 100, and the included angle A4 between each positioning surface 4 and the vertical surface 300 is between 15° and 30°.

[0037] In the embodiment, each rear flank surface 3 is formed with a positioning groove, the end surface of each positioning groove is formed with a positioning surface 4, the included angle between two adjacent side walls, i.e. the included angle between two connected rear flank surfaces 3, is 123.9°, and the included angle A4 between each positioning surface 4 and the vertical surface 300 is 20°. In application, the positioning surface 4 and the mounting hole groove 8 can be matched with the positioning structure on the cutter body respectively, so as to more stably fix the blade body 100 on the cutter body, further strengthen the stability of the connection between the two, avoid or slow down the displacement deviation between the two due to cutting vibration, and assist in improving the cutting precision.

[0038] The above is not intended to limit the technical scope of the utility model in any way, and any modification, equivalent change and modification of the above embodiment according to the technical essence of the utility model still belongs to the technical scope of the utility model.

Claims

1. A high-efficiency milling insert special for titanium alloy, comprising an insert body, wherein a mounting hole slot is formed through both ends of the insert body; characterized in that: the insert body is a frustum structure, both ends of which are square structures and both adjacent side walls of which are smoothly connected by an arc surface; the larger end of the insert body is an inner recess structure, and a horizontal end platform is formed at the center thereof, and the mounting hole slot is arranged on the end platform; an intersection between the larger end of the insert body and each side wall forms a cutting edge, and a round nose is formed between two adjacent cutting edges; a chip breaker area is formed between the end platform and each cutting edge, each chip breaker area is smoothly connected with the end platform, and two adjacent chip breaker areas are smoothly connected. Each chip breaker area sequentially comprises a first rake face, a second rake face, a chip flow face and a groove bottom arc face, the first rake face is connected with the cutting edge, and the groove bottom arc face is connected with the end platform. Each first rake face forms a first rake angle with the horizontal plane, each first rake angle is between 1.5° and 4°; each second rake face forms a second rake angle with the horizontal plane, each second rake angle is between 3.5° and 8°; and each side wall forms a relief angle with the vertical plane, each relief angle is between 10° and 20°. The maximum distance between each first rake face and the cutting edge is between 0.1mm and 0.3mm; and the maximum distance between each second rake face and the cutting edge is between 0.1mm and 0.3mm.

2. The high efficiency milling insert for titanium alloy specialty according to claim 1, characterized in that, The width of each cutting edge is between 0.8mm and 1.2mm.

3. The high efficiency milling insert for titanium alloy specialty according to claim 2, characterized in that, The four cutting edges are at the same height, and the maximum distance between them and the end platform is between 0.3mm and 0.7mm.

4. The high efficiency milling insert for titanium alloy specialty according to claim 2, characterized in that, The radius of each round nose is between 1mm and 3mm.

5. The high performance milling insert for titanium alloy specialty according to claim 1, characterized in that, Each side wall is formed with a relief face and a positioning face which are connected and not coplanar, each relief face is connected with a cutting edge and two arc surfaces, each positioning face is connected with the smaller end of the insert body, and the included angle between each positioning face and the vertical plane is between 15° and 30°.

6. The high performance milling insert for titanium alloy specialty according to claim 1, characterized in that, ​ 7. The high performance milling insert for titanium alloy specialty according to claim 1, characterized in that, ​ 8. The high performance milling insert for titanium alloy specialty according to any one of claims 1-7, characterized in that, ​

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