Titanium alloy fast-feed milling blade

Abstract

The utility model discloses a titanium alloy fast feed milling blade which is characterized in that a blade main body is of a centrosymmetric square frustum structure, the larger end part of the blade main body is a cutting end with a concave middle part, a cutting edge is formed at the intersection of the cutting end and each side wall, and the end part, close to the cutting edge, of each side wall is a rear tool surface; the cutting end is provided with a chip breaking area beside each cutting edge, a plurality of protruding rib tables are arranged on each chip breaking area, every two adjacent chip breaking areas are smoothly connected, and a water-drop-shaped table is formed at the intersection of every two adjacent chip breaking areas. Each cutting edge is high in strength and has a larger relief angle, the sharpness of the cutting edge can be continuously kept, the generation of cutting heat is reduced, the tensile force borne by the screw is improved, the production efficiency can be improved to the maximum extent, the problems that the cutting edge is easy to deform and break and the heating value is larger in the fast feed machining process are solved, the machining efficiency is high, and the production cost is low. And the quick feed cutting requirements of most titanium alloy materials can be met, and meanwhile, the cutting machining requirements of steel parts, stainless steel and alloy steel can be met.

Description

TECHNICAL FIELD

[0001] The utility model relates to milling blade technical field, especially relates to titanium alloy fast feed milling blade. BACKGROUND

[0002] Titanium alloy is the difficult processing material that application is very extensive, is easy to appear work hardening, and processing efficiency is low, simultaneously poor thermal conductivity, 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 adhesion of scrap, therefore, we designed this SDMT093508-CM blade to meet the production needs of large depth of cut high feed titanium alloy processing. UTILIT Y MODEL CONTENT

[0003] In view of the problems existing in the prior art, the utility model provides titanium alloy fast feed milling blade, each cutting edge is high in strength and has a large clearance angle, can continuously keep the sharpness of cutting edge, can reduce the generation of cutting heat and timely dissipate heat, improve the tension of screw bearing, can maximize the production efficiency, and can guide and increase the deformation degree of chip to accelerate chip breaking and heat dissipation, to solve the problem that the cutting edge is easy to deform and break in fast feed processing and the large amount of heat, high processing efficiency, can meet the fast feed cutting needs of most titanium alloy materials, and can also meet the cutting processing needs of steel parts, stainless steel and alloy steel.

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

[0005] Titanium alloy fast feed 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 square frustum structure of central symmetry, the larger end is the cutting end of central recess, the smaller end is the positioning end arranged horizontally, and the adjacent two side walls are connected smoothly through the arc surface, the cutting end and the intersection of each side wall form a cutting edge, and the intersection of each arc surface forms a round corner tool tip, the end of each side wall close to the cutting edge is the relief surface, and the end close to the positioning end forms a side positioning surface,

[0007] The cutting end forms a chip breaking area between the installation hole groove and each cutting edge, each chip breaking area is arranged with a plurality of convex rib platforms along the extension direction of the cutting edge, the adjacent two chip breaking areas are connected smoothly and the intersection thereof forms a water drop shaped platform, the two ends of each convex rib platform extend towards the cutting edge and the installation hole groove respectively, and the two ends of each water drop shaped platform extend towards the round corner tool tip and the installation hole groove respectively.

[0008] As a further elaboration of the above technical scheme:

[0009] In the technical scheme, each of the chip-breaking areas is sequentially provided with a smooth connecting edge position, a first rake surface, a chip sliding surface and a groove bottom from the cutting edge to the mounting hole groove, each of the edge positions is a horizontal plane, each of the chip sliding surfaces extends towards the center of the blade body, each of the groove bottoms intersects with the mounting hole groove, the edges of each of the convex rib platforms respectively smoothly connect with the first rake surface, the chip sliding surface and the groove bottom, and the edges of each of the water-drop-shaped platforms respectively smoothly connect with the chip sliding surface and the groove bottom.

[0010] In the technical scheme, the cutting end is further provided with an annular platform outside the end of the mounting hole groove, the inner wall of the annular platform connects with the mounting hole groove, and the outer wall of the annular platform smoothly connects with the groove bottom and / or the convex rib platform and / or the water-drop-shaped platform.

[0011] In the technical scheme, the surfaces of each of the convex rib platforms and the water-drop-shaped platforms are smoothly connected by three or more curved surfaces with different curvatures, and the central curved surface has a large curvature and the two end curved surfaces have small curvatures.

[0012] Compared with the prior art, the utility model has the advantages that: the blade body is provided with a conical platform structure, a large clearance angle is formed between each side wall and the cutting edge to continuously keep the sharpness of the edge, the cutting is smooth and the cutting force is reduced, the generation of cutting heat is reduced and the heat is dissipated, the tensile force borne by the screw is improved, the production efficiency is maximized, the strength of each cutting edge is improved, the deformation degree of the chip is increased to accelerate the chip breaking, the heat is dissipated, the problem of deformation and breaking of the cutting edge and large heat generation in fast feeding machining is solved, the machining efficiency is high, the fast feeding cutting of most titanium alloy materials can be met, and the machining of steel, stainless steel and alloy steel can be simultaneously met. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a structural schematic view of the embodiment;

[0014] Figure 2 is a bottom structural schematic view of the embodiment;

[0015] Figure 3 is Figure 1 is a structural enlarged schematic view of part A in the figure;

[0016] Figure 4 is Figure 1 is a sectional structural schematic view of B-B in the figure.

[0017] In the figure: 200, horizontal plane; 300, vertical plane; 1, cutting end; 2, locating end; 3, relief surface; 4, curved surface; 5, cutting edge; 6, round nose; 7, mounting hole groove; 8, annular boss; 9, edge position; 10, first rake surface; 11, chip sliding surface; 12, raised rib boss; 13, groove bottom; 14, drop-shaped boss; 15, side locating surface; L1, width of edge position; L2, height of first rake surface; L3, maximum distance between edge position and groove bottom; L4, distance between edge position and annular boss; A1, first rake angle; A2, included angle between chip sliding surface and edge position; A3, relief angle; A4, included angle between side locating surface and vertical plane. DETAILED DESCRIPTION

[0018] The utility model will be described in further detail below in combination with the drawings.

[0019] The embodiments described with reference to the drawings are exemplary and are intended to be illustrative of the present application and are not understood to be limiting of the present application. In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "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 convenience of describing the present application and simplifying the description, and are not intended to indicate or imply that the devices or elements indicated thereby must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "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 technical features indicated thereby. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "several", "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 fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. 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 between the first and second features, or it can include the contact between 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 first feature above and obliquely above the second feature, or only indicate 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 first feature below and obliquely below the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0020] As Figures 1-3 shown, the titanium alloy fast feed milling insert includes an insert body, a positioning end of the insert body is formed with a mounting hole slot 7 penetrating through both ends thereof; wherein:

[0021] The positioning end blade body is a square frustum structure which is central symmetrical, the larger end of which is a cutting end 1 with a middle recess, the smaller end of which is a horizontally arranged positioning end 2, and the two adjacent side walls are connected by arc surfaces 4; the intersection of the cutting end 1 and each side wall forms a cutting edge 5, and the intersection of each positioning end arc surface 4 forms a round corner tool tip 6; the end of each positioning end side wall close to the positioning end cutting edge 5 is a relief surface 3, and the end close to the positioning end 2 forms a side positioning surface 15;

[0022] The cutting end 1 forms a chip breaking area between the positioning end mounting hole slot 7 and each positioning end cutting edge 5, and each positioning end chip breaking area is arranged with a plurality of convex rib platforms 12 along the extension direction of the positioning end cutting edge 5, the two adjacent positioning end chip breaking areas are smoothly connected and the intersection thereof forms a water drop-shaped platform 14, the two ends of each positioning end convex rib platform 12 extend towards the positioning end cutting edge 5 and the mounting hole slot 7 respectively, and the two ends of each positioning end water drop-shaped platform 14 extend towards the positioning end round corner tool tip 6 and the mounting hole slot 7 respectively. In the embodiment, the included angle of the tangent lines formed at the positions of the two adjacent relief surfaces 3 and the tool tip round corner 6 is 114.7°, and it has been verified that the maximum cutting depth Apmax of the milling blade of the embodiment can reach 0.8mm, and the maximum feed per tooth Fzmax can reach 1.2mm.

[0023] The utility model discloses a milling blade which is provided with a blade body in a frustum structure, a cutting edge between each side wall and the cutting edge 5 has a large relief angle to continuously keep the sharpness of the cutting edge, the cutting is light and fast, the cutting force is reduced, the generation and dissipation of cutting heat are reduced, the tensile force borne by the screw is improved, the production efficiency is maximized, the strength of each cutting edge 5 is enhanced, the deformation degree of the chip is increased to accelerate the chip breaking, and the heat generation is accelerated to solve the problems of easy deformation and breaking of the cutting edge and large heat generation in fast feed machining, the machining efficiency is high, the fast feed cutting needs of most titanium alloy materials can be met, and the cutting machining needs of steel parts, stainless steel and alloy steel can be met.

[0024] Further, the blade body is provided with a blade body in a frustum structure, a cutting edge between each side wall and the cutting edge 5 has a large relief angle to continuously keep the sharpness of the cutting edge, the cutting is light and fast, the cutting force is reduced, the generation and dissipation of cutting heat are reduced, the tensile force borne by the screw is improved, the production efficiency is maximized, the strength of each cutting edge 5 is enhanced, the deformation degree of the chip is increased to accelerate the chip breaking, and the heat generation is accelerated to solve the problems of easy deformation and breaking of the cutting edge and large heat generation in fast feed machining, the machining efficiency is high, the fast feed cutting needs of most titanium alloy materials can be met, and the cutting machining needs of steel parts, stainless steel and alloy steel can be met.

[0025] In the embodiment, the width L1 of the cutting edge position 9 is 0.25 mm, the height L2 of the first rake face 10 is 0.03 mm, the distance L3 between the cutting edge position 9 and the groove bottom 13 is 0.24 mm, the first rake angle A1 between the first rake face 10 and the horizontal plane 200 is 9.1°, the angle A2 between the chip sliding face 11 and the cutting edge position 9 is 15°, the relief angle A3 between the vertical plane 300 and the relief face 3 is 15.0°, the angle A4 between the side positioning face 15 and the vertical plane 300 is 23.5°, and the radius of the nose radius 6 is 0.8 mm.

[0026] Further, the surface of each positioning end protruding rib platform 12 and the water-drop-shaped platform 14 is smoothly connected by three or more curved surfaces with different curvatures, and the curvature of the middle part is larger, and the curvature of the two ends is smaller. The cutting end 1 further forms a ring-shaped boss 8 outside the end of the positioning end mounting hole groove 7, the inner wall of the positioning end ring-shaped boss 8 is connected with the positioning end mounting hole groove 7, and the outer wall is smoothly connected with the positioning end groove bottom 13 and / or the protruding rib platform 12 and / or the water-drop-shaped platform 14.

[0027] It can be understood that the ring-shaped boss 8 smoothly connected with the groove bottom 13 can further guide the chip winding and slow down the contact with the connecting member (screw) in the mounting hole groove 7. In the embodiment, the distance L4 between the cutting edge position 9 and the ring-shaped boss 8 is 0.20 mm.

[0028] The above is not intended to limit the technical scope of the utility model in any way, and any modification, equivalent change and modification made according to the technical essence of the utility model to the above embodiment still belongs to the technical solution range of the utility model.

Claims

1. A titanium alloy quick feed milling insert comprising an insert body having a mounting hole slot formed therethrough both end portions thereof; characterized in that : The blade body is a central symmetrical square frustum structure, the larger end of which is a central recessed cutting end, the smaller end of which is a horizontally arranged positioning end, and the adjacent two side walls are smoothly connected through an arc surface; the intersection of the cutting end and each side wall forms a cutting edge, and the intersection of each arc surface forms a round corner tool tip; the end of each side wall close to the cutting edge is a relief surface, and the end close to the positioning end forms a side positioning surface; The cutting end forms a chip breaking area between the mounting hole groove and each cutting edge, and each chip breaking area is arranged with a plurality of raised rib platforms along the extension direction of the cutting edge, the adjacent two chip breaking areas are smoothly connected and the intersection thereof forms a water droplet-shaped platform, the two ends of each raised rib platform extend towards the cutting edge and the mounting hole groove respectively, and the two ends of each water droplet-shaped platform extend towards the round corner tool tip and the mounting hole groove respectively.

2. The titanium alloy quick feed milling insert of claim 1, wherein, Each chip breaking area is sequentially formed with a smoothly connected edge position, a first rake surface, a chip sliding surface and a groove bottom from the cutting edge to the mounting hole groove, each edge position is a horizontally arranged plane, each chip sliding surface extends towards the center of the blade body, each groove bottom intersects with the mounting hole groove, the edges of each raised rib platform are smoothly connected with the first rake surface, the chip sliding surface and the groove bottom respectively, and the edges of each water droplet-shaped platform are smoothly connected with the chip sliding surface and the groove bottom respectively.

3. The titanium alloy quick feed milling insert of claim 2, wherein, The cutting end further forms an annular boss outside the end of the mounting hole groove, the inner wall of the annular boss is connected with the mounting hole groove, and the outer wall is smoothly connected with the groove bottom and / or the raised rib platform and / or the water droplet-shaped platform.

4. The titanium alloy quick feed milling insert of any one of claims 1-3, wherein, The surface of each raised rib platform and water droplet-shaped platform is smoothly connected by three or more curved surfaces with different curvatures, and the central surface has a large curvature and the two end surfaces have a small curvature.

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