High-performance milling cutter for machining titanium alloy

Abstract

The utility model discloses a high-performance milling cutter for processing titanium alloy, which comprises a cylindrical cutter bar and a cutter head, the end part of the cutter head far away from one end of the cutter bar is hemispherical, the cutter head comprises a front end surface and six circumferential blades, the six circumferential blades are uniformly distributed on the outer surface of the cutter head, and a chip groove which rotates rightwards towards the direction of a cutter handle is formed between every two adjacent circumferential blades. A plurality of chip breaker grooves are formed in each circumferential blade, and two end blades are arranged on the front end face; according to the high-performance milling cutter for machining the titanium alloy, the six right-handed chip removal grooves are adopted, the heat dissipation area is increased, and the cutter can smoothly remove chips and disperse cutting force during cutting, so that the cutting resistance is reduced, the heat dissipation efficiency is improved, stress concentration points are reduced, resonance is reduced, and the cutting stability is good; and the chip breaker grooves are uniformly formed in the circumferential blade, so that chips are cut off, the length of the chips is reduced, the chip removal efficiency is improved, the cutting resistance is reduced, the friction force is reduced, the cutting heat is reduced, the service life of the cutter is prolonged, and the cutting stability is further improved.

Description

Technical Field

[0001] The utility model relates to a tool processing technology, in particular to a high-performance milling cutter for processing titanium alloy. Background Art

[0002] With the development of the aerospace field at home and abroad, especially the localization of various types of aircraft engines, higher requirements are put forward for the processing of aircraft blades and disks. The metal removal of the overall titanium alloy blade disk of the aircraft engine is very large, so the tool needs to have strong rough processing capabilities. The finished structure of the blade disk is complex, the blade surface is a free-form surface, and the blade thickness is very thin, resulting in poor overall rigidity.

[0003] However, existing milling cutters have too much resistance, wear quickly, have a short tool life, and are prone to overcutting due to vibration and rebound of the blades, leading to serious blade scrapping. Utility Model Content

[0004] In order to solve the defects of the above-mentioned prior art, the utility model provides a high-performance milling cutter for machining titanium alloy, which has small cutting resistance, small friction, long service life and good cutting stability.

[0005] In order to achieve the above technical objectives, the utility model adopts the following technical solutions: a high-performance milling cutter for processing titanium alloy, comprising a cylindrical arbor and a hemispherical cutter head at the end away from one end of the arbor, the cutter head comprising a front end face and 6 peripheral blades, the 6 peripheral blades are evenly distributed on the outer surface of the cutter head, a right-handed chip groove facing the shank is formed between two adjacent peripheral blades, each peripheral blade is provided with a number of chip breaking grooves, the front end face is provided with two end blades, the two end blades are connected and the included angle is 180 degrees.

[0006] Preferably, the width of the chip groove increases first and then becomes uniform in the direction from the ball head to the tool handle.

[0007] Preferably, the chip breaker grooves are arc-shaped and are evenly distributed on the peripheral edge.

[0008] Preferably, the two end cutting edges are connected to the two peripheral cutting edges respectively.

[0009] Preferably, the front end face is provided with two guide faces, the two guide faces are respectively arranged on both sides of the end edge, and each guide face is respectively connected to three chip removal grooves.

[0010] Preferably, a chip removal surface and a reinforcement surface are respectively provided on both sides of one end of the chip removal groove facing the guide surface, the chip removal surface is arranged on the left side of the chip removal groove, and the reinforcement surface is arranged on the right side of the chip removal groove for strengthening the peripheral edge.

[0011] Preferably, the helix angles of the adjacent chip removal grooves are equal, and the helix angles of the adjacent peripheral edges are equal.

[0012] In summary, the utility model has achieved the following technical effects:

[0013] 1. The high-performance milling cutter for processing titanium alloy of the utility model adopts six right-handed chip grooves, which increases the heat dissipation area and enables the tool to smoothly discharge chips during cutting, disperses the cutting force, thereby reducing cutting resistance, improving heat dissipation efficiency, and reducing stress concentration points, reducing resonance, and having good cutting stability.

[0014] 2. The high-performance milling cutter for processing titanium alloy of the utility model evenly arranges chip breaking grooves on the peripheral edge to cut off the chips, reduce the chip length, and thus improve the chip removal efficiency, thereby reducing the cutting resistance, reducing the friction, reducing the cutting heat, extending the practical life of the tool, and further improving the cutting stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model for processing titanium alloy high-performance milling cutter;

[0016] Figure 2 It is a three-dimensional structural schematic diagram of the utility model for processing titanium alloy high-performance milling cutter;

[0017] Explanation of the reference numerals in the accompanying drawings in the specification: 1. tool holder; 2. tool head; 21. end edge; 22. peripheral edge; 3. chip groove; 4. chip breaker groove; 5. reinforcement surface; 6. guide surface; 7. chip surface. DETAILED DESCRIPTION

[0018] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0019] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not 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" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0022] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0024] Embodiment 1:

[0025] like Figure 1-2 As shown, a high-performance milling cutter for processing titanium alloy includes a cylindrical arbor 1 and a hemispherical cutter head 2 whose end is away from the arbor 1, the cutter head 2 includes a front end face and six peripheral cutting edges 22, the six peripheral cutting edges 22 are evenly distributed on the outer surface of the cutter head 2, a right-handed chip groove 3 toward the shank is formed between two adjacent peripheral cutting edges 22, each peripheral cutting edge 22 is provided with a plurality of chip breaking grooves 4, the front end face of the cutter head 2 is provided with two end cutting edges 21, the two end cutting edges 21 are connected and the included angle is 180 degrees; the chip breaking grooves 4 of the cutter head 2 are arc-shaped, and the chip breaking grooves 4 of the cutter head 2 are evenly distributed on the peripheral cutting edges 22.

[0026] The high-performance milling cutter for processing titanium alloy in this embodiment adopts six right-handed chip grooves 3, which increase the heat dissipation area and enable the tool to smoothly evacuate chips during cutting, disperse the cutting force, thereby reducing cutting resistance, improving heat dissipation efficiency, reducing stress concentration points, reducing resonance, and having good cutting stability. Moreover, by evenly arranging chip breaker grooves 4 on the peripheral blade 22, debris is cut off, the length of the debris is reduced, and the chip removal efficiency is improved, thereby reducing cutting resistance, reducing friction, reducing cutting heat, extending the practical life of the tool, and further improving cutting stability.

[0027] The two end cutting edges 21 are respectively connected to the two peripheral cutting edges 22, and the width of the chip groove 3 of the cutter head 2 first increases and then becomes consistent from the ball head to the tool handle; two guide surfaces 6 are provided on the front end face of the cutter head 2, and the two guide surfaces 6 are respectively arranged on both sides of the end cutting edge 21, and each guide surface 6 is connected to three chip grooves 3; chip groove 3 of the cutter head 2 is respectively provided with chip removal surfaces 7 and reinforcement surfaces 5 on both sides of one end of the guide surface 6, the chip removal surface 7 of the cutter head 2 is arranged on the left side of the chip removal groove 3, and the reinforcement surface 5 of the cutter head 2 is arranged on the right side of the chip removal groove 3 for strengthening the peripheral cutting edge 22.

[0028] The guide surface 6 can accommodate a portion of the waste chips and quickly guide the waste chips generated by the cutting of the end edge 21 to the chip groove 3 through the chip removal surface 7, thereby improving the chip removal and heat dissipation efficiency of the tool during operation, thereby further reducing the cutting resistance and comprehensively improving the life of the tool during use.

[0029] The helix angles of adjacent chip removal grooves 3 of the cutter head 2 are equal, and the helix angles of adjacent peripheral cutting edges 22 of the cutter head 2 are equal.

[0030] When in use, the titanium alloy blade disc tool often has the end cutting edge 21 of the front end surface used for roughing, and the peripheral cutting edge 22 used for finishing.

[0031] The above description is only a preferred implementation mode of the present invention, and does not limit the present invention in any form. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are within the scope of the technical solution of the present invention.

Claims

1. A high-performance milling cutter for machining titanium alloy, characterized in that: It includes a cylindrical tool rod and a hemispherical tool head at the end away from the tool rod. The tool head includes a front end face and 6 peripheral edges. The 6 peripheral edges are evenly distributed on the outer surface of the tool head. A right-handed chip groove facing the tool handle is formed between two adjacent peripheral edges. Each peripheral edge is provided with a plurality of chip breaking grooves. The front end face is provided with two end edges, and the two end edges are connected with an angle of 180 degrees.

2. A high-performance milling cutter for machining titanium alloy according to claim 1, characterized in that: The width of the chip removal groove increases first and then becomes uniform in the direction from the ball head to the tool handle.

3. The high-performance milling cutter for machining titanium alloy according to claim 1, characterized in that: The chip breaker grooves are arc-shaped and are evenly distributed on the peripheral edge.

4. The high-performance milling cutter for machining titanium alloy according to claim 1, characterized in that: The two end cutting edges are connected to the two peripheral cutting edges respectively.

5. The high-performance milling cutter for machining titanium alloy according to claim 1, characterized in that: The front end face is provided with two guide faces, which are respectively arranged on both sides of the end edge, and each guide face is respectively connected with three chip removal grooves.

6. The high-performance milling cutter for machining titanium alloy according to claim 5, characterized in that: A chip removal surface and a reinforcement surface are respectively provided on both sides of one end of the chip removal groove facing the guide surface. The chip removal surface is arranged on the left side of the chip removal groove, and the reinforcement surface is arranged on the right side of the chip removal groove for strengthening the peripheral edge.

7. The high-performance milling cutter for machining titanium alloy according to claim 1, characterized in that: The helix angles of the adjacent chip removal grooves are equal, and the helix angles of the adjacent peripheral edges are equal.

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