Double-helix diamond milling cutter

Abstract

The utility model discloses a double-helix diamond milling cutter which comprises a cutter head, the cutter head is coaxially and fixedly arranged at one end of a cutter handle, a first milling cutter blade, a second milling cutter blade, a third milling cutter blade and a fourth milling cutter blade are all fixedly arranged on the cutter head, the first milling cutter blade and the third milling cutter blade are arranged on the same side, and the second milling cutter blade and the fourth milling cutter blade are arranged on the same side. The first milling blade and the second milling blade are oppositely arranged, the length of the second milling blade is larger than that of the first milling blade, the third milling blade is arranged between the second milling blade and the fourth milling blade, and end cutting edges on the first milling blade and the second milling blade extend to the outer side of the end of the tool bit. And side cutting edges of the first milling blade, the second milling blade, the third milling blade and the fourth milling blade extend to the outer side of the outer wall of the tool bit. The multiple groups of milling cutter blades are arranged on the cutter head, and when any one milling cutter blade is damaged and has a notch, the milling cutter blade can be replaced at will, so that the milling cutter can be repeatedly used, and the machining cost of parts is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of milling cutters, in particular to a double-helix diamond milling cutter. Background Art

[0002] During the processing of parts, some holes, surfaces and grooves need to be processed by milling cutters. In the milling cutters in the prior art, the side blades on the milling cutters are integrated. During the processing, if a gap appears on the side blades, the entire milling cutter will be scrapped and cannot be used again. The entire milling cutter needs to be replaced during replacement, which increases the processing cost of parts. Utility Model Content

[0003] The utility model aims to overcome the deficiencies of the prior art and provide a double-helix diamond milling cutter.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] A double-helix diamond milling cutter comprises a tool handle, a tool head, a first milling blade, a second milling blade, a third milling blade and a fourth milling blade, wherein the tool head is coaxially fixedly arranged on one end of the tool handle, the first milling blade, the second milling blade, the third milling blade and the fourth milling blade are all fixedly arranged on the tool head, the first milling blade and the third milling blade are arranged on the same side and have opposite spiral directions, the second milling blade and the fourth milling blade are arranged on the same side and have opposite spiral directions, the first milling blade and the second milling blade are arranged opposite to each other and have the same spiral direction, the length of the second milling blade is greater than that of the first milling blade, the third milling blade is arranged between the second milling blade and the fourth milling blade, the end cutting edges on the first milling blade and the second milling blade extend to the outside of the end of the tool head, the side cutting edges of the first milling blade, the second milling blade, the third milling blade and the fourth milling blade extend to the outside of the outer wall of the tool head, and the end cutting edge of the first milling blade extends to the axis center line of the tool head.

[0006] Furthermore, a first fixed protrusion, a second fixed protrusion, a third fixed protrusion and a fourth fixed protrusion are fixedly set on the outer wall of the cutter head, the first milling blade is fixedly set on the first fixed protrusion, the second milling blade is fixedly set on the second fixed protrusion, the third milling blade is fixedly set on the third fixed protrusion, and the fourth milling blade is fixedly set on the fourth fixed protrusion.

[0007] Further, the first fixing protrusion, the second fixing protrusion, the third fixing protrusion and the fourth fixing protrusion are all provided with a first clearance plane and a second clearance plane, and the first clearance plane is in contact with the second clearance plane.

[0008] Furthermore, a first spiral discharge groove is provided on the outer wall of the cutter head, the first spiral discharge groove cooperates with the third milling cutter blade, and an end of the first spiral discharge groove cooperates with the first milling cutter blade.

[0009] Furthermore, a second spiral discharge groove and a third spiral discharge groove are provided on the outer wall of the cutter head, the second spiral discharge groove cooperates with the second milling blade, the third spiral discharge groove cooperates with the fourth milling blade, one end of the second spiral discharge groove is connected with the third spiral discharge groove, and the other end of the second spiral discharge groove extends to the outside of the end of the cutter head.

[0010] Furthermore, the helical angle of the second spiral discharge groove is 10 to 30°, and the helical angle of the third spiral discharge groove is 10 to 30°.

[0011] Furthermore, the end cutting edge on the first milling blade and the end cutting edge on the second milling blade are arranged on the same straight line, and the straight line passes through the axis center line of the cutter head.

[0012] Furthermore, a third avoidance plane and a fourth avoidance plane are arranged on both sides of the end of the cutter head, the third avoidance plane is connected to the fourth avoidance plane on the same side, and the angle between the third avoidance plane and the end face of the cutter head is smaller than the angle between the fourth avoidance plane and the end face of the cutter head.

[0013] Furthermore, the side cutting edges of the first milling blade, the second milling blade, the third milling blade and the fourth milling blade are all located on the same cylindrical surface.

[0014] The beneficial effects of the utility model are:

[0015] 1) In this technology, a plurality of sets of milling blades are arranged on the cutter head. When any milling blade is damaged or has a gap, the milling blade can be replaced at will, so that the milling cutter can be reused, thereby reducing the processing cost of parts.

[0016] 2) In the present technology, the first milling cutter, the second milling cutter, the third milling cutter and the fourth milling cutter contact the processed parts in turn, and the contact area with the parts each time is smaller, which can effectively ensure the processing efficiency of the parts.

[0017] 3) In the present technology, a first fixing protrusion, a second fixing protrusion, a third fixing protrusion and a fourth fixing protrusion are provided to install and fix the first milling blade, the second milling blade, the third milling blade and the fourth milling blade. Such an installation method makes the connection of the milling blade more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The three-dimensional structure of this milling cutter Figure 1 ;

[0019] Figure 2 The three-dimensional structure of this milling cutter Figure 2 ;

[0020] Figure 3 This is the side view of the milling cutter;

[0021] In the figure, 1-tool handle, 2-tool head, 3-first milling blade, 4-second milling blade, 5-third milling blade, 6-fourth milling blade, 7-first fixed protrusion, 8-second fixed protrusion, 9-third fixed protrusion, 10-fourth fixed protrusion, 11-first air avoidance plane, 12-second air avoidance plane, 13-first spiral discharge groove, 14-second spiral discharge groove, 15-third spiral discharge groove, 16-third air avoidance plane, 17-fourth air avoidance plane. DETAILED DESCRIPTION

[0022] The following will be combined with the embodiments to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-Figure 3 , the utility model provides a technical solution:

[0024] A double-helix diamond milling cutter comprises a tool handle 1, a tool head 2, a first milling blade 3, a second milling blade 4, a third milling blade 5 and a fourth milling blade 6, the tool head 2 is coaxially fixedly arranged on one end of the tool handle 1, the first milling blade 3, the second milling blade 4, the third milling blade 5 and the fourth milling blade 6 are all fixedly arranged on the tool head 2, the first milling blade 3 and the third milling blade 5 are arranged on the same side and have opposite spiral directions, the second milling blade 4 and the fourth milling blade 6 are arranged on the same side and have opposite spiral directions, the first milling blade 3 and the second milling blade 4 are arranged oppositely and have the same spiral direction, the length of the second milling blade 4 is greater than the length of the first milling blade 3, the third milling blade 5 is arranged between the second milling blade 4 and the fourth milling blade 6, the end cutting edges on the first milling blade 3 and the second milling blade 4 extend to the outside of the end of the tool head 2, the side cutting edges of the first milling blade 3, the second milling blade 4, the third milling blade 5 and the fourth milling blade 6 extend to the outside of the outer wall of the tool head 2, and the end cutting edge of the first milling blade 3 extends to the axis center line of the tool head 2. The side cutting edges of the first milling blade 3, the second milling blade 4, the third milling blade 5 and the fourth milling blade 6 are all on the same cylindrical surface. Among them, the cutter head 2 is fixed to the equipment used by the milling cutter through the handle 1. When the end of the cutter head 2 needs to be milled, the end cutting edges on the first milling blade 3 and the second milling blade 4 are in contact with the parts; when the side of the cutter head 2 needs to be milled, the side cutting edges of the first milling blade 3, the second milling blade 4, the third milling blade 5 and the fourth milling blade 6 are in contact with the parts. The first milling blade 3, the second milling blade 4, the third milling blade 5 and the fourth milling blade 6 are all diamond milling blades. The first milling blade 3 and the third milling blade 5 are arranged on the same side and in opposite spiral directions, the second milling blade 4 and the fourth milling blade 6 are arranged on the same side and in opposite spiral directions, and the first milling blade 3 and the second milling blade 4 are arranged oppositely and in the same spiral direction. This arrangement can ensure higher efficiency in milling.

[0025] In some embodiments, a first fixed protrusion 7, a second fixed protrusion 8, a third fixed protrusion 9 and a fourth fixed protrusion 10 are fixedly arranged on the outer wall of the cutter head 2, the first milling blade 3 is fixedly arranged on the first fixed protrusion 7, the second milling blade 4 is fixedly arranged on the second fixed protrusion 8, the third milling blade 5 is fixedly arranged on the third fixed protrusion 9, and the fourth milling blade 6 is fixedly arranged on the fourth fixed protrusion 10. Among them, the first fixed protrusion 7, the second fixed protrusion 8, the third fixed protrusion 9 and the fourth fixed protrusion 10 can better fix the first milling blade 3, the second milling blade 4, the third milling blade 5 and the fourth milling blade 6, so that the first milling blade 3, the second milling blade 4, the third milling blade 5 and the fourth milling blade 6 can extend a longer distance to the outside.

[0026] In some embodiments, the first fixed protrusion 7, the second fixed protrusion 8, the third fixed protrusion 9 and the fourth fixed protrusion 10 are all provided with a first clearance plane 11 and a second clearance plane 12, and the first clearance plane 11 is in contact with the second clearance plane 12. Among them, the first fixed protrusion 7, the second fixed protrusion 8, the third fixed protrusion 9 and the fourth fixed protrusion 10 are all independently provided with a first clearance plane 11 and a second clearance plane 12, and the purpose of providing the first clearance plane 11 and the second clearance plane 12 is to prevent interference when the side of the cutter head 2 is milled.

[0027] In some embodiments, a first spiral discharge groove 13 is provided on the outer wall of the cutter head 2, and the first spiral discharge groove 13 cooperates with the third milling blade 5, and the end of the first spiral discharge groove 13 cooperates with the first milling blade 3. A second spiral discharge groove 14 and a third spiral discharge groove 15 are provided on the outer wall of the cutter head 2, and the second spiral discharge groove 14 cooperates with the second milling blade 4, and the third spiral discharge groove 15 cooperates with the fourth milling blade 6. One end of the second spiral discharge groove 14 is connected to the third spiral discharge groove 15, and the other end of the second spiral discharge groove 14 extends to the outside of the end of the cutter head 2. The spiral angle of the second spiral discharge groove 14 is 10 to 30°, and the spiral angle of the third spiral discharge groove 15 is 10 to 30°. Among them, the first spiral discharge groove 13, the second spiral discharge groove 14 and the third spiral discharge groove 15 are provided to better discharge the debris generated during the processing to prevent the debris from affecting the subsequent milling process.

[0028] In some embodiments, the end cutting edge on the first milling blade 3 and the end cutting edge on the second milling blade 4 are arranged on the same straight line, and the straight line passes through the axis of the cutter head 2. Among them, the end cutting edge on the first milling blade 3 and the end cutting edge on the second milling blade 4 are both arranged along the diameter direction of the cutter head 2, so that the length of the first milling blade 3 is minimized, the width of the second milling blade 4 is small, and a larger area can be milled at one time.

[0029] In some embodiments, a third clearance plane 16 and a fourth clearance plane 17 are provided on both sides of the end of the cutter head 2, the third clearance plane 16 and the fourth clearance plane 17 on the same side are connected, and the angle between the third clearance plane 16 and the end face of the cutter head 2 is smaller than the angle between the fourth clearance plane 17 and the end face of the cutter head 2. Among them, the straight line formed by the end cutting edge on the first milling blade 3 and the end cutting edge on the second milling blade 4 divides the end of the cutter head 2 into two semicircles, and the third clearance plane 16 and the fourth clearance plane 17 are independently provided on each semicircle. The purpose of providing the third clearance plane 16 and the fourth clearance plane 17 is to prevent interference when the end of the cutter head 2 is milled.

[0030] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "inside", "front", "center", "both ends" 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 device or element referred to 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.

[0031] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation", "hinge" 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. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0032] The above is only a preferred embodiment of the utility model. It should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A double helical diamond milling cutter, characterized in that: The invention comprises a tool handle (1), a tool head (2), a first milling blade (3), a second milling blade (4), a third milling blade (5) and a fourth milling blade (6); the tool head (2) is coaxially fixedly arranged on one end of the tool handle (1); the first milling blade (3), the second milling blade (4), the third milling blade (5) and the fourth milling blade (6) are all fixedly arranged on the tool head (2); the first milling blade (3) and the third milling blade (5) are arranged on the same side and in opposite spiral directions; the second milling blade (4) and the fourth milling blade (6) are arranged on the same side and in opposite spiral directions; the first milling blade (3) and the second milling blade ( 4) are arranged relative to each other and have the same spiral direction, the length of the second milling blade (4) is greater than the length of the first milling blade (3), the third milling blade (5) is arranged between the second milling blade (4) and the fourth milling blade (6), the end cutting edges on the first milling blade (3) and the second milling blade (4) extend to the outside of the end of the cutter head (2), the side cutting edges of the first milling blade (3), the second milling blade (4), the third milling blade (5) and the fourth milling blade (6) extend to the outside of the outer wall of the cutter head (2), and the end cutting edge of the first milling blade (3) extends to the axis center line of the cutter head (2).

2. A double helix diamond milling cutter according to claim 1, characterized in that: A first fixed protrusion (7), a second fixed protrusion (8), a third fixed protrusion (9) and a fourth fixed protrusion (10) are fixedly arranged on the outer wall of the cutter head (2); the first milling blade (3) is fixedly arranged on the first fixed protrusion (7); the second milling blade (4) is fixedly arranged on the second fixed protrusion (8); the third milling blade (5) is fixedly arranged on the third fixed protrusion (9); and the fourth milling blade (6) is fixedly arranged on the fourth fixed protrusion (10).

3. A double helix diamond milling cutter according to claim 2, characterized in that: The first fixing protrusion (7), the second fixing protrusion (8), the third fixing protrusion (9) and the fourth fixing protrusion (10) are all provided with a first clearance plane (11) and a second clearance plane (12), and the first clearance plane (11) is in contact with the second clearance plane (12).

4. A double helix diamond milling cutter according to any one of claims 1 to 3, characterized in that: A first spiral discharge groove (13) is provided on the outer wall of the cutter head (2), the first spiral discharge groove (13) cooperates with the third milling blade (5), and the end of the first spiral discharge groove (13) cooperates with the first milling blade (3).

5. A double helix diamond milling cutter according to any one of claims 1 to 3, characterized in that: A second spiral discharge groove (14) and a third spiral discharge groove (15) are provided on the outer wall of the cutter head (2); the second spiral discharge groove (14) cooperates with the second milling blade (4); the third spiral discharge groove (15) cooperates with the fourth milling blade (6); one end of the second spiral discharge groove (14) is connected to the third spiral discharge groove (15); and the other end of the second spiral discharge groove (14) extends to the outside of the end of the cutter head (2).

6. A double helix diamond milling cutter according to claim 5, characterized in that: The helical angle of the second spiral discharge groove (14) is 10 to 30°, and the helical angle of the third spiral discharge groove (15) is 10 to 30°.

7. A double helix diamond milling cutter according to any one of claims 1 to 3, characterized in that: The end cutting edge on the first milling blade (3) and the end cutting edge on the second milling blade (4) are arranged on the same straight line, and the straight line passes through the axis center line of the cutter head (2).

8. A double helix diamond milling cutter according to any one of claims 1 to 3, characterized in that: A third clearance plane (16) and a fourth clearance plane (17) are provided on both sides of the end of the cutter head (2); the third clearance plane (16) and the fourth clearance plane (17) on the same side are connected, and the angle between the third clearance plane (16) and the end face of the cutter head (2) is smaller than the angle between the fourth clearance plane (17) and the end face of the cutter head (2).

9. A double helix diamond milling cutter according to any one of claims 1 to 3, characterized in that: The side cutting edges of the first milling blade (3), the second milling blade (4), the third milling blade (5) and the fourth milling blade (6) are all located on the same cylindrical surface.

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