CN210552206U - Cutting tool and tool bit structure thereof - Google Patents
Cutting tool and tool bit structure thereof Download PDFInfo
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- CN210552206U CN210552206U CN201920648883.5U CN201920648883U CN210552206U CN 210552206 U CN210552206 U CN 210552206U CN 201920648883 U CN201920648883 U CN 201920648883U CN 210552206 U CN210552206 U CN 210552206U
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
- B23P15/34—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools milling cutters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/18—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by milling, e.g. channelling by means of milling tools
- B28D1/186—Tools therefor, e.g. having exchangeable cutter bits
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D5/00—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor
- B28D5/02—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor by rotary tools, e.g. drills
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Abstract
The utility model relates to a precision finishing instrument technical field discloses a cutting tool and tool bit structure thereof, the tool bit structure includes connecting portion and locates the cutting edge portion of connecting portion front end, cutting edge portion is including fixing cutting main part and a plurality of first cutting edge at the connecting portion front end, the surface of cutting main part is outside bellied cambered surface, first cutting edge is the heliciform, the sword number S of first cutting edge with will satisfy following relation between the cutting main part diameter D: s is more than or equal to 4D and less than or equal to 15D; the diameter D of the cutting main body is 0.5-32 mm; the edge width L of the first cutting edge is 0.01 mm to 0.1 mm. The utility model has the advantages that: when the cutting tool is used for milling curved surfaces, the distribution density of cutting edges with the same diameter is high, the surface roughness is good, and the processing efficiency is high; when the cutting tool is applied to CNC to process a 3D glass graphite mold, the surface roughness can reach 90 nm.
Description
Technical Field
The utility model relates to a precision finishing instrument technical field especially relates to a cutting tool and tool bit structure thereof.
Background
The graphite mold is more and more widely applied due to excellent heat conduction and electricity conduction, lubricating property, abrasion resistance and the like, but the graphite mold is difficult to process; at present, when the semi-finish machining or the finish machining of a curved surface is required on a graphite mold, a common flat-bottom milling cutter is usually adopted to mill the curved surface, although the machining efficiency is high, the remaining residual material steps are obvious, and the machining profile tolerance is poor; in addition, in order to increase the wear resistance of the existing milling cutter, a wear-resistant coating (such as WC, diamond, etc.) is usually coated on the surface of the existing milling cutter, which is difficult to machine and short in service life, and the machining roughness and uniformity of the surface of a workpiece formed by using the existing milling cutter are poor. In addition, the diameter of the tool bit is limited to be small, the distribution density of the cutting edges machined by the existing machining equipment is low, the distribution density of the cutting edges is directly related to the roughness of the surface of the machined workpiece, the surface machined by the tool bit with the low distribution density of the cutting edges is difficult to meet the requirement of increasing machining precision, and the machining efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming prior art's is not enough, provides a cutting tool and tool bit structure thereof, can mill the curved surface, improves cutting edge distribution density under the same diameter, guarantees the roughness of machined surface, improves machining efficiency.
In order to achieve the above object, a first aspect of the present invention provides a bit structure for a cutting tool, the bit structure includes connecting portion and locates the cutting edge portion of connecting portion front end, cutting edge portion 'S material is polycrystalline diamond, cutting edge portion is including fixing cutting main part and a plurality of first cutting edge at the connecting portion front end, cutting main part' S surface is outside bellied cambered surface, first cutting edge is the heliciform, the sword number S of first cutting edge with will satisfy following relation between the cutting main part diameter D: s is more than or equal to 4D and less than or equal to 15D; the diameter D of the cutting main body is 0.5-32 mm; the edge width L of the first cutting edge is 0.01 mm to 0.1 mm.
Preferably, the edge number S of the first cutting edge is that the diameter D of the cutting body satisfies the following relation of 7D ≤ S ≤ 12D, and the diameter D of the cutting body is 3-20 mm; the edge width L of the first cutting edge is 0.03 mm to 0.08 mm.
Preferably, the material of the cutting edge portion is any one of polycrystalline diamond, monocrystalline diamond, chemical vapor deposition diamond, polycrystalline cubic boron nitride, ceramic and hard alloy.
Preferably, each of the first cutting edges is provided on an outer surface of the cutting body along a circumferential direction of a central axis of the cutting body, and each of the first cutting edges has the same direction of rotation, and a first chip flute is formed between two adjacent cutting edges.
Preferably, the outer surface of the cutting body is a hemispherical surface.
Preferably, one end of the first cutting edge is provided at a top region of the cutting body, and the other end of the first cutting edge is provided at a connection point between the cutting body and the connecting portion.
Preferably, one end of the first cutting edge is provided at a top region of the cutting body, and the other end of the first cutting edge extends to an outer side surface of the connecting portion.
Preferably, the first cutting edges disposed on opposite sides of the cutting body are connected at a top region of the cutting body to form a continuous cutting edge, and the other first cutting edges are not connected to each other.
Preferably, the helix angle of the first cutting edge is 1 ° to 80 °.
Preferably, the groove depth of the first chip groove is 0.02 mm to 0.4 mm.
Preferably, the number of the first cutting edges is 2 to 100.
Preferably, the first cutting edge is integrally formed with the cutting body.
Preferably, the cutting edges of the first cutting edges are disposed on the same side.
Preferably, the direction of rotation of the first cutting edge is left-handed or right-handed.
Preferably, the direction of rotation of the first cutting edge is left-handed, and the cutting edge of the first cutting edge is disposed on the right side of the first cutting edge.
Preferably, the outer surface of the cutting main body is further provided with a plurality of spiral second cutting edges, and the second cutting edges are arranged in the first chip discharge grooves and divide the first chip discharge grooves into a plurality of second chip discharge grooves; and the rotary direction of the second cutting edge is the same as that of the first cutting edge.
Preferably, one end of the second cutting edge is connected to the first cutting edge, and the other end of the second cutting edge is provided at a connection point between the cutting body and the connection portion.
Preferably, one end of the second cutting edge is connected to the first cutting edge, and the other end of the second cutting edge extends to an outer side surface of the connecting portion.
Preferably, at least two second cutting edges are connected to each of the first cutting edges.
Preferably, the second cutting edge is integrally formed with the cutting body.
Preferably, the cutting edge portion and the connecting portion are integrally formed, and the cutting edge portion and the connecting portion are made of the same material.
In a second aspect, the present invention provides a cutting tool comprising a tool shank and a head structure mounted to a front end of the tool shank in accordance with any of the first aspects, wherein a rear end surface of the connecting portion is fixedly connected to a front end surface of the tool shank.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the utility model provides a cutting tool, tool bit structure include connecting portion and cutting edge portion, wherein, cutting edge portion includes the cutting main part and locates a plurality of first cutting edges on cutting main part surface, and the surface of cutting main part is the cambered surface of outside arch, and first cutting edge is the heliciform, and in the course of working, the cutting main part is along certain direction orbit motion when rotatory along its self center pin to can process the curved surface on the work piece, and can effectively improve the machining precision and the machining efficiency of cutter; and the number of edges S of the first cutting edge and the diameter D of the cutting body satisfy the following relationship: s is not less than 4D and not more than 15D, namely the number S of the first cutting edges is 4-15 times of the diameter D of the cutting main body, the diameter D of the cutting main body is within the range of 0.5-32 mm, and the width L of the first cutting edges is 0.01 mm-0.1 mm, so that the first cutting edges on the cutting main body are distributed more densely under the same diameter, the surface roughness of a processed curved surface is lower, the processed surface is more exquisite, and the processing efficiency can be improved; when the tool bit structure is applied to CNC to process a 3D glass graphite mold, the surface roughness can reach 90 nm.
Furthermore, the whole material of the cutting edge part is any one of polycrystalline diamond, single crystal diamond, chemical vapor deposition diamond, polycrystalline cubic boron nitride, ceramic and hard alloy, so that the wear resistance of the cutting edge can be improved, and the service life of the cutting edge part is longer compared with that of a cutter with a coating structure.
Furthermore, the first cutting edges arranged on the two opposite sides of the cutting main body are connected in the top area of the cutting main body to form a coherent cutting edge which can be used for processing a plane, so that the cutter head can process the plane through the cutting function when processing the plane, the surface roughness is lower than that of the common ball cutter in a squeezing processing mode, the surface is more exquisite, and the flatness is higher; furthermore, a coherent cutting edge is formed at the top of the cutting body, which can cut a large plane.
Drawings
Fig. 1 is a schematic structural diagram of a tool bit structure according to an embodiment of the present invention;
fig. 2 is a top view of a tool bit structure according to an embodiment of the present invention;
fig. 3 is a left side view of a tool bit configuration according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a tool bit structure according to a second embodiment of the present invention.
In the figure, 10, the connecting part; 20. a cutting edge part; 21. a cutting body; 22. a first cutting edge; 221. a cutting edge of the first cutting edge; 23. a first chip discharge groove; 24. a second cutting edge; 241. a cutting edge of the second cutting edge; 25. a second chip groove; 26. a chip removal space.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. It should be understood that the terms "first", "second", etc. are used herein to describe various information, but the information should not be limited to these terms, and these terms are only used to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.
In addition, it should be noted that, in the description of the present invention, the terms "front" and "rear" mean that, when the cutting tool is in use, the end close to the machined workpiece is "front" and the end away from the machined workpiece is "rear".
The utility model discloses a first aspect provides a tool bit structure for cutting tool, and the concrete implementation of tool bit structure is as follows:
example one
As shown in fig. 1 to 3, the present embodiment provides a cutting head structure for a cutting tool, the cutting head structure includes a connecting portion 10 and a cutting edge portion 20 disposed at a front end of the connecting portion 10, the cutting edge portion 20 includes a cutting body 21 fixed at the front end of the connecting portion 10 and a plurality of first cutting edges 22, an outer surface of the cutting body 21 is an outwardly convex arc surface, the first cutting edges 22 are helical, the number of the first cutting edges 22 is defined as S, a diameter of the cutting body 21 is defined as D, and the following relationships between S and D are satisfied: s is not less than 4D and not more than 15D, that is, the number S of the edges of the first cutting edge 22 is 4 to 15 times the diameter D of the cutting body 21, the diameter D of the cutting body 21 is 0.5 to 32mm, and the edge width L of the first cutting edge 22 is 0.01 mm to 0.1 mm.
The cutter head structure in the embodiment is mainly used for milling and forming curved surfaces of graphite workpieces, particularly graphite molds, the cutter head structure rotates to drive each first cutting edge 22 to rotate, the outer surface of the cutting main body 21 is an outwardly convex cambered surface, so that curved surfaces are milled on the workpieces by a tangent method, and the cutting main body 21 drives the cutting main body to move along a track while the cutting edges rotate to mill the whole curved surfaces; when the tool bit structure is applied to CNC to process a 3D glass graphite mold, the surface roughness can reach 90 nm.
Similarly, the tool tip structure of the present embodiment is also suitable for machining workpieces made of glass, sapphire, and the like.
Based on the technical scheme, the outer surface of the cutting main body 21 is set to be an outward convex cambered surface, the curved surface of a workpiece such as a graphite die can be milled, the machined surface cannot have a remnant step, the machined surface with good roughness can be obtained, and the machining efficiency is high.
Importantly, as shown in fig. 2, the number S of the first cutting edges 22 is 4 to 15 times the diameter D of the cutting body 21, the diameter D of the cutting body 21 is in the range of 0.5 to 32mm, and the edge width L of the first cutting edge is 0.03 mm to 0.08 mm, so that the first cutting edges 22 on the cutting body 21 are more densely distributed at the same diameter, the surface roughness of the machined curved surface is good, and the machining efficiency is higher.
Specifically, each of the first cutting edges 22 is uniformly disposed on the outer surface of the cutting body 21 along the circumferential direction of the central axis of the cutting body 21, so that the cutting force is more uniform, the direction of rotation of each of the first cutting edges 22 is the same, a first chip groove 23 is formed between two adjacent cutting edges 22, and chips on the surface of the workpiece removed by the first cutting edges 22 are discharged from the first chip groove 23.
Preferably, S and D further satisfy the following relationship: s is not less than 7D and not more than 12D, that is, the number of edges S of the first cutting edge 22 is 9 to 12 times of the diameter D of the cutting main body 21, the diameter D of the cutting main body 21 is within a range of 3 to 20mm, and the width L of the edge of the first cutting edge 22 is 0.03 mm to 0.08 mm, so that the surface roughness of the machined curved surface is better, and the machining efficiency is higher. The relationship between S and D may be such that the number of edges S of the first cutting edge 22 is 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, or 14 times the diameter D of the cutting body 21. The diameter D of the cutting body 21 may be: 1-3mm, or 4-6mm, or 7-10mm, or 12-18mm, or 21-25mm, or 26-28mm, etc. The edge width L of the first cutting edge 22 may be 0.01, 0.02, 0.03, 0.04, 0.05, 0.06, 0.07, 0.08, 0.09, 0.1mm, or the like.
Preferably, in this embodiment, the whole material of cutting edge portion 20 of the tool bit structure is polycrystalline diamond, and compared with a traditional coated milling cutter, the integral polycrystalline diamond structure greatly increases the wear resistance of the cutting edge, and does not have the condition that a coating is easy to peel off, so that the service life of the cutter is greatly prolonged, the tool changing times in the machining process is reduced, and the machining precision and the machining efficiency of the cutter can be effectively improved. The utility model discloses reacing through research analysis and experiment, wholly being polycrystalline diamond's cutting edge portion 20 need process more first cutting edges 22 through dedicated equipment and delicate processing, just can process out more first cutting edges 22 on polycrystalline diamond of certain diameter, and prior art can not process more first cutting edges 22, can only process first cutting edges 22 below 3 if the diameter is 1 mm's cutting main part 21 prior art, and the utility model discloses an adopt polycrystalline diamond's cutting main part 21, can process first cutting edges 22 more than 4.
As an alternative, the material of the tool bit structure may be any one of single crystal diamond, chemical vapor deposition diamond, polycrystalline cubic boron nitride, ceramic, and hard alloy, and the wear-resistant effect may also be achieved.
Further, when milling a curved surface using a milling cutter, the stress points are mainly concentrated on the top region of the cutting body 21, and in order to prevent chatter phenomenon from occurring during the milling process of the cutter, the outer surface of the cutting body 21 has a hemispherical shape, and the first cutting edges 22 are most dense at the top region of the cutting body 21.
In the present embodiment, specifically, one end of the first cutting edge 22 is disposed at the top region of the cutting body 21 and extends along the outer surface of the cutting body 21, so that the other end of the first cutting edge 22 is disposed at the connection point of the cutting body 21 and the connecting portion 10, and the cutting position is mainly concentrated at the top region of the cutting body 21.
Further, in order to improve the cutting force of the top area of the cutter, so that the cutter head can process a plane through the cutting action when processing the plane, the surface roughness is lower than that of the processing mode of common ball cutter extrusion, the surface is more delicate, and the flatness is higher, in the embodiment, the first cutting edges 22 arranged at two opposite sides of the cutting main body 21 are connected at the top area of the cutting main body 21 and form a continuous cutting edge; similarly, in order to achieve the chip discharging function, the other first cutting edges 22 are not connected to each other, so that a chip discharging space 26 is formed in the top region of the cutting body 21, so as to facilitate the discharge of the residue in the top region of the cutting body 21, as shown in fig. 1 and 2. Furthermore, a coherent cutting edge is formed at the top of the cutting body, which can cut a large plane.
preferably, in this embodiment, as shown in fig. 2, the helix angle α of the first cutting edge 22 is 1 ° to 80 °, and by properly increasing the helix angle of the first cutting edge 22, the cutting force of the tool during the machining process can be reduced, the tool has strong impact resistance, tool vibration can be prevented, better surface machining quality can be ensured, and the service life of the cutting tool can be prolonged, and based on the helix angle, the strength, sharpness, cutting force and waste chip discharge speed of the first cutting edge 22 are all ideal.
In the present embodiment, as shown in fig. 1 and 2, a distance L between both side surfaces of the first cutting edge 22 is defined as a cutting edge width of the first cutting edge 22, and the cutting edge width L of the first cutting edge 22 is 0.01 mm to 0.1 mm; in addition, the depth of the first chip discharge groove 23 is 0.02 mm to 0.4 mm, so that the smooth discharge of residual chips in the milling process is ensured;
based on the above definition of the cutting edge width of the first cutting edges 22 and the groove depth of the first chip discharge grooves 23, the number of the first cutting edges 22 is 2-100, and the cutting force can be evenly distributed to each first cutting edge 22 by properly increasing the number of the first cutting edges 22, so that the cutting tool can bear larger cutting force, can adapt to higher cutting speed and feed amount, and can improve the machining precision. Exemplary embodiments of the tool tip configuration including 6 cutting inserts are shown in fig. 1-3, which can be used to machine a workpiece with a machined surface roughness of less than 300nm, which can be significantly reduced compared to conventional tool tip configurations of greater than 800 nm.
In this embodiment, the first cutting edge 22 and the cutting body 21 are integrally formed, so that a greater number of first cutting edges 22 can be machined on a smaller cutting body 21, the forming is simpler, and the wear resistance and the service life of the cutting tool can be ensured.
In this embodiment, the cutting edges of the first cutting edges 22 are disposed on the same side.
Referring to fig. 1 to 3, in the present embodiment, the turning direction of the first cutting edge 22 is left-handed, the waste chips are discharged in a direction away from the workpiece to be machined through the first chip groove 23, and the cutting edge 221 of the first cutting edge is disposed on the right side of the first cutting edge 22; similarly, the direction of rotation of the first cutting edge 22 may be set to right, with the direction of the swarf being reversed. In this embodiment, in order to further improve the wearability of tool bit structure to increase of service life improves the chip removal ability simultaneously, the surface of cutting body 21 still is equipped with a plurality of spiral helicine second cutting edges 24 that are, second cutting edges 24 locate in first chip groove 23.
Preferably, one end of the second cutting edge 24 is connected to the first cutting edge 22, the other end of the second cutting edge 24 is disposed at the connection position of the cutting body 21 and the connecting portion 10, and the second cutting edge 24 divides the first chip flute 23 into a plurality of second chip flutes 25; the direction of rotation of the second cutting edge 24 is the same as the direction of rotation of the first cutting edge 22, and may be left-handed or right-handed.
In the present embodiment, the rotation direction of the second cutting edge 24 is the same as the rotation direction of the first cutting edge 22, and both are left-handed; in addition, the cutting edge 241 of the second cutting edge is also disposed on the right side.
Preferably, at least two second cutting edges 24 are connected to each first cutting edge 22, and the two second cutting edges 24 are connected to the same side surface of the first cutting edge 22. Illustratively, two second cutting edges 24 are shown attached to each first cutting edge 22 in fig. 1-3.
Similarly, in order to facilitate the formation and ensure the wear resistance and service life of the cutting tool, the second cutting edge 24 is integrally formed with the cutting body 21, and a plurality of second cutting edges 24 can be designed according to the use requirement.
Further, the cutting edge part 20 and the connecting part 10 are integrally formed, so that the forming is facilitated, and the material of the cutting edge part 20 is the same as that of the connecting part 10.
Example two
Referring specifically to fig. 4, the present embodiment provides another tool tip structure, and the present embodiment differs from the first embodiment only in that: one end of the first cutting edge 22 is disposed at a top region of the cutting body 21, and the other end of the first cutting edge 22 extends to an outer side surface of the connecting portion 10; one end of the second cutting edge 24 is connected to the first cutting edge 22, and the other end of the second cutting edge 24 extends to the outer side surface of the connecting portion 10.
The tool tip configuration of this embodiment is more forgiving than the first embodiment.
In a second aspect, the present invention provides a cutting tool (not shown in the drawings) comprising a tool shank and a bit structure mounted on a front end of the tool shank, as in any of the first aspect, wherein a rear end face of the connecting portion 10 is fixedly connected to a front end face of the tool shank.
The cutting tool of the present invention, including the bit structure according to any one of the embodiments of the first aspect, therefore, has all the advantages of the bit structure, which are not described herein.
To sum up, the embodiment of the utility model provides a tool bit structure and cutting tool including the tool bit structure, the tool bit structure includes the cutting main part and locates a plurality of first cutting edges on the cutting main part, and the surface of cutting main part is the cambered surface of outside arch, can be used for the curved surface processing of shaping work piece, and guarantees the roughness of machined surface; and the number of edges S of the first cutting edge and the diameter D of the cutting body satisfy the following relationship: s is more than or equal to 4D and less than or equal to 15D, the diameter D of the cutting main body is within the range of 0.5-32 mm, so that the first cutting edges on the cutting main body are more densely distributed under the same diameter, the edge width L of each first cutting edge is 0.01-0.1 mm, the surface roughness of the machined curved surface is good, and the machining efficiency is higher; when the cutting tool is applied to CNC to process a 3D glass graphite mold, the surface roughness can reach 90 nm.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.
Claims (22)
1. A cutter head structure is characterized by comprising a connecting part and a cutting edge part arranged at the front end of the connecting part, wherein the cutting edge part comprises a cutting main body and a plurality of first cutting edges, the cutting main body is fixed at the front end of the connecting part, the outer surface of the cutting main body is an outwardly convex cambered surface, and the first cutting edges are spiral;
the number of edges S of the first cutting edge and the diameter D of the cutting body satisfy the following relationship: s is more than or equal to 4D and less than or equal to 15D; the diameter D of the cutting main body is 0.5-32 mm; the edge width L of the first cutting edge is 0.01 mm to 0.1 mm.
2. The tool head structure of claim 1, wherein the relationship 7D ≦ S ≦ 12D between the number of edges S of the first cutting edge and the diameter D of the cutting body, the diameter D of the cutting body is 3 to 20mm, and the width L of the edge of the first cutting edge is 0.03 mm to 0.08 mm.
3. The cutter head structure according to claim 1, wherein the material of the cutting edge portion is any one of polycrystalline diamond, single crystal diamond, chemical vapor deposition diamond, polycrystalline cubic boron nitride, ceramic, and cemented carbide.
4. The cutter head structure of claim 1, wherein each of said first cutting edges is disposed on the outer surface of said cutting body along the circumferential direction of the central axis of said cutting body, and the direction of rotation of each of said first cutting edges is the same, and a first chip flute is formed between adjacent two of said cutting edges.
5. The bit structure of claim 3 wherein the outer surface of the cutting body is hemispherical.
6. The bit structure of claim 1, wherein one end of the first cutting edge is disposed at a top region of the cutting body and the other end of the first cutting edge is disposed at a junction of the cutting body and the connecting portion.
7. The bit structure of claim 1, wherein one end of the first cutting edge is disposed at a top region of the cutting body and the other end of the first cutting edge extends to an outer side surface of the connecting portion.
8. The bit structure of claim 6 or 7, wherein first cutting edges disposed on opposite sides of said cutting body join at a top region of said cutting body and form a continuous cutting edge, and wherein said first cutting edges are not joined to each other.
9. The tool tip structure of claim 1 wherein the helix angle of the first cutting edge is between 1 ° and 80 °.
10. The tool tip structure of claim 4, wherein the first flute has a flute depth of 0.02 mm to 0.4 mm.
11. The bit structure of claim 1 wherein the number of said first cutting edges is 2 to 100.
12. The cutter head structure of claim 1 wherein said first cutting edge is integrally formed with said cutting body.
13. The cutter head structure of claim 1 wherein the cutting edges of each of said first cutting edges are disposed on the same side.
14. The bit structure of claim 1 wherein the direction of rotation of said first cutting edge is left-handed or right-handed.
15. The cutter head structure of claim 14 wherein said first cutting edge has a left hand direction and said cutting edge of said first cutting edge is disposed to the right of said first cutting edge.
16. The cutter head structure of claim 4, wherein said outer surface of said cutting body further defines a plurality of helical second cutting edges disposed in said first flutes and dividing said first flutes into a plurality of second flutes;
and the rotary direction of the second cutting edge is the same as that of the first cutting edge.
17. The bit structure of claim 16, wherein one end of the second cutting edge is connected to the first cutting edge and the other end of the second cutting edge is disposed at a junction of the cutting body and the connecting portion.
18. The bit structure of claim 16, wherein one end of the second cutting edge is connected to the first cutting edge, and the other end of the second cutting edge extends to an outer side surface of the connecting portion.
19. The cutter head structure of claim 16 wherein at least two of said second cutting edges are connected to each of said first cutting edges.
20. The cutter head structure of claim 16 wherein said second cutting edge is integrally formed with said cutting body.
21. The cutter head structure according to claim 1, wherein the cutting edge portion and the connecting portion are integrally formed, and the material of the cutting edge portion and the material of the connecting portion are the same.
22. A cutting tool comprising a tool shank portion and a bit structure according to any one of claims 1 to 21 mounted to a forward end of the tool shank portion, a rear end surface of the connecting portion being fixedly connected to a forward end surface of the tool shank portion.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821568653 | 2018-09-25 | ||
| CN201821568653X | 2018-09-25 |
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| CN210552206U true CN210552206U (en) | 2020-05-19 |
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| CN201910375074.6A Pending CN110103344A (en) | 2018-09-25 | 2019-05-07 | A kind of cutting tool and its cutter head structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110103344A (en) * | 2018-09-25 | 2019-08-09 | 汇专绿色工具有限公司 | A kind of cutting tool and its cutter head structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102308963B1 (en) * | 2019-08-26 | 2021-10-05 | 콘프로페 테크놀로지 그룹 컴퍼니 리미티드 | Bite structure and cutting cutter |
| CN110560768A (en) * | 2019-09-12 | 2019-12-13 | 汇专绿色工具有限公司 | Cutting tool and tool bit structure thereof |
| WO2021046864A1 (en) * | 2019-09-12 | 2021-03-18 | 汇专科技集团股份有限公司 | Cutting tool and tool bit structure thereof |
| CN112355333B (en) * | 2020-10-20 | 2023-08-08 | 科益展智能装备有限公司 | Cutter and cutter head structure thereof |
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| CN210552206U (en) * | 2018-09-25 | 2020-05-19 | 汇专科技集团股份有限公司 | Cutting tool and tool bit structure thereof |
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| CN109262863A (en) * | 2018-09-27 | 2019-01-25 | 基准精密工业（惠州）有限公司 | Forming cutter |
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| CN109128325A (en) * | 2018-09-27 | 2019-01-04 | 基准精密工业（惠州）有限公司 | Ball knife |
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- 2019-05-07 CN CN201920648883.5U patent/CN210552206U/en active Active
- 2019-05-07 CN CN201910375074.6A patent/CN110103344A/en active Pending
- 2019-05-14 WO PCT/CN2019/086724 patent/WO2020223989A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110103344A (en) * | 2018-09-25 | 2019-08-09 | 汇专绿色工具有限公司 | A kind of cutting tool and its cutter head structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110103344A (en) | 2019-08-09 |
| WO2020223989A1 (en) | 2020-11-12 |
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Inventor after: Yan Bingjiang Inventor after: Wang Chengyong Inventor after: Li Weiqiu Inventor before: Yan Bingjiang Inventor before: Li Weiqiu |