CN217046520U - Pineapple grain drilling and milling cutter for processing carbon fiber composite board - Google Patents
Pineapple grain drilling and milling cutter for processing carbon fiber composite board Download PDFInfo
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- CN217046520U CN217046520U CN202220419376.6U CN202220419376U CN217046520U CN 217046520 U CN217046520 U CN 217046520U CN 202220419376 U CN202220419376 U CN 202220419376U CN 217046520 U CN217046520 U CN 217046520U
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Abstract
The utility model provides a milling cutter is bored to pineapple line for processing carbon fiber composite sheet, includes the cutting part, the cutting part is including seting up in the end sword and the chip groove of cutter body tip and seting up in chip groove and the week sword of cutter body week side, the end sword is the drill point cutting edge, the chip groove includes left spiral chip groove and right spiral chip groove, the week sword is including left spiral cutting edge and the right spiral cutting edge based on the chip groove formation. This bore milling cutter can once only realize the processing action that carbon-fibre composite panel inserted and milled and the side mill, and the two-way carbon fiber tissue that is netted distribution can in time be cut off to the week sword that the pineapple line shape set up, has also improved carbon-fibre composite panel's machining efficiency when avoiding carbon-fibre material to produce defects such as tearing, deckle edge, layering.
Description
Technical Field
The utility model belongs to the technical field of cutting tool, concretely relates to pineapple bores milling cutter for processing carbon fiber composite sheet.
Background
Carbon fiber materials are mainly composed of carbon elements, have the characteristics of high temperature resistance, friction resistance, corrosion resistance, electric conduction, heat conduction and the like, are commonly used for being combined with a matrix such as resin to prepare a functional carbon fiber composite material, and are widely applied to the fields of aerospace, automobile manufacturing, marine ships, sports goods and the like at present. However, the carbon fiber composite material has many problems in the processing process due to high strength and hardness.
Generally, when machining a carbon fiber composite plate, a carbide milling cutter with a conventional structure is not suitable for a machining mode of milling a workpiece contour on the side of a peripheral edge after inserting a tip edge into a starting machining hole. Therefore, when a workpiece similar to an annular workpiece is machined, tool changing operation needs to be frequently carried out, the number of working procedures is large, and the production efficiency of the workpiece is low. The edge form with single edge linearity is not beneficial to the cutting of the fiber tissue in the material by the cutter, and the material is easy to generate defects such as tearing, rough edges, layering and the like.
Therefore, in view of the above drawbacks, there is a need for an improved milling cutter suitable for drilling and milling carbon fiber composite plates.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a milling cutter is bored to pineapple line for processing carbon-fibre composite panel, should bore milling cutter can once only realize the processing action that carbon-fibre composite panel inserted and milled and the side-milling, and the all sword that the pineapple line shape set up can in time cut off the two-way carbon fiber tissue that is netted distribution, has also improved carbon-fibre composite panel's machining efficiency when avoiding carbon fiber material to produce defects such as tearing, deckle edge, layering.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a pineapple line bores milling cutter for processing carbon fiber composite sheet, includes the cutting part, the cutting part is including the end sword and the chip groove of seting up in cutter body tip and seting up in chip groove and the week sword of cutter body week side, the end sword is the drill point cutting edge, and the cutter can be directly through this drill point with carbon fiber composite sheet processing the initial station that adds of through-hole form, uses week sword processing work piece inner contour afterwards, once bores the milling process, improves the flexibility and the efficiency of processing, the chip groove includes left spiral chip groove and right spiral chip groove, week sword is including left spiral cutting edge and right spiral cutting edge based on the chip groove formation;
correspondingly, the end edge comprises two cutting edges and a chisel edge formed by connecting the two cutting edges; the drill point cutting edge is formed, the drill point cutting edge replaces a flat-bottom cutting edge, and plunge milling and side milling can be realized without replacing a cutter;
correspondingly, the first back angle of the end edge is 6-13 degrees, the second back angle is 18-26 degrees, and the knife outlet angle is 90-115 degrees; so as to ensure the sharpness of the drilling tip for the carbon fiber composite material;
correspondingly, the corresponding chip flutes are respectively arranged on the front tool surfaces of the cutting edges; the chip groove is a first channel for discharging carbon fiber powder during slotting, and the carbon fiber powder cut by the end edge can be discharged in time by adopting a one-edge one-groove arrangement mode;
correspondingly, the front angle of the chip groove is 5 degrees; the drilling capability of the drill point of the drilling and milling cutter to the carbon fiber composite board can be improved, and carbon fiber powder cut by the end edge can be discharged at the first time;
correspondingly, the number of the cutting edges of the end edge is two, and the joint of the two cutting edges is a chisel edge; forming a drill tip cutting edge, and processing the carbon fiber composite board into an initial processing position in a through hole form through the drill tip cutting edge;
correspondingly, the number of the right-handed flute is 2-3 more than that of the left-handed flute;
correspondingly, the spiral angle of the chip groove is 25-35 degrees; when the carbon fiber composite material is processed by the cutter, more chip removal channels are provided for carbon fiber powder, the contact area of a cutting edge of the cutter and air is increased, and the heat dissipation efficiency is improved;
correspondingly, the back angle of the peripheral edge is 9-20 degrees; when the peripheral edge of the milling cutter performs side milling on the carbon fiber composite board, the partition type double-helix right-rotary cutting edge applies tensile stress to the carbon fiber material, the left-rotary cutting edge applies compressive stress to the carbon fiber material, the tensile stress and the compressive stress are mutually inhibited when the cutting edges in two directions perform destructive cutting on the workpiece, and are mutually offset, so that the processing efficiency is improved, and the possibility of generation of the layering defect of the carbon fiber composite board is reduced.
Correspondingly, a diamond coating is arranged on the surface of the blade part; the size stability and the wear resistance of the cutting edge part of the cutter are greatly improved, and the heat barrier effect of the coating is utilized, so that the cutting temperature of the cutting edge area of the cutter is reduced, the roughness of the machined surface of a workpiece is reduced, and the effect of prolonging the service life of the cutter is achieved.
The utility model has the advantages that:
1) the end blade is a drill tip cutting blade, the cutter can directly process the carbon fiber composite board into an initial processing station in a through hole form through the drill tip, then the peripheral blade is used for processing the inner contour of the workpiece, and the drilling and milling procedures are carried out at one time, so that the processing flexibility and efficiency are improved;
2) the cutting edges adopt partition type double-helix cutting edges, so that the cutting force is improved, when the peripheral edges of the drilling and milling cutter perform side milling on the carbon fiber composite board, the partition type nonlinear double-helix right-handed cutting edges apply tensile stress to the carbon fiber material, the left-handed cutting edges apply compressive stress to the carbon fiber material, the tensile stress and the compressive stress are mutually inhibited and mutually offset when the cutting edges in two directions perform destructive cutting on a workpiece, so that the processing efficiency is improved, and the possibility of generation of the layering defect of the carbon fiber composite board is reduced;
3) the diamond coating with ultrahigh hardness and elastic modulus is deposited on the edge of the cutter body, so that the dimensional stability and the wear resistance of the edge of the cutter are greatly improved, the cutting temperature is reduced compared with the cutting temperature for processing the cutting edge of the cutter without the coating, the roughness of the processed surface of a workpiece is reduced, and the service life of the cutter is prolonged;
4) the chip groove adopts a one-edge one-groove principle, and the tail end of the chip groove is connected with the chip groove, so that carbon fiber powder cut by the end edge can be discharged in time;
5) double helix chip groove about adopting can provide more chip removal passageway for carbon fiber powder when the cutter adds man-hour carbon-fibre composite to increased the area of contact of cutter blade and air, improved the radiating efficiency.
Drawings
Fig. 1 is a schematic perspective view of a pineapple grain drill milling cutter for processing a carbon fiber composite board according to an embodiment of the present invention;
fig. 2 is a schematic side view of a pineapple grain drill milling cutter for processing a carbon fiber composite board according to an embodiment of the present invention;
fig. 3 is a schematic end face structure diagram of a pineapple grain drill milling cutter for processing a carbon fiber composite board according to an embodiment of the present invention;
in the figure:
100. a blade part;
101. a cutting edge; 102. a chisel edge; 103. a first relief angle of the end edge; 104. a second relief angle of the end edge; 105. a chip pocket;
106. a left spiral chip groove; 107. a right helical flute; 108. a left helical cutting edge; 109. a right helical cutting edge; 110. a relief angle of the peripheral edge;
200. a handle.
Detailed Description
In the description of the present invention, it should be understood that the terms indicating the orientation or the positional relationship are based on the orientation or the positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but not for indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
The principles and features of the present invention will be described with reference to the drawings, which are provided for illustration only and are not intended to limit the scope of the invention. It should be noted that the drawings are in a very simplified form and are not to precise scale, which is only used for the purpose of facilitating and clearly explaining the embodiments of the present invention.
As shown in fig. 1 to 3, in an embodiment of the present invention, the pineapple grain milling and drilling tool for processing carbon fiber composite boards includes a shank 200 and a cutting portion 100 formed by grinding cemented carbide, the cutting portion 100 includes an end edge and a chip flute 105 opened at the end of the tool body and a peripheral edge and a chip flute opened at the peripheral side of the tool body, and the end edge is a drill tip cutting edge 101. In this embodiment, the number of the cutting edges 101 of the end edge is two, the joint of the two cutting edges 101 is the chisel edge 102, the first relief angle 103 of the end edge is 10 °, the second relief angle 104 of the end edge is 25 °, and the cutting angle is 110 °, so as to ensure the sharpness of the drill point on the drilling of the carbon fiber composite material. The chip flutes 105 are respectively formed in the front tool faces of the two cutting edges 101, one edge and one groove are realized, the front angle of each chip flute 105 is 5 degrees, and the tail ends of the chip flutes 105 are connected with the left spiral chip flutes 106 and the right spiral chip flutes 107, so that the drilling capacity of the drilling and milling tool for drilling the carbon fiber composite board is improved, and carbon fiber powder cut by the end edges is discharged at the first time.
The chip grooves comprise left-spiral chip grooves 106 and right-spiral chip grooves 107, in the embodiment, the spiral angles of the left-spiral chip grooves 106 and the right-spiral chip grooves 107 are 30 degrees, the number of the right-spiral chip grooves is 2-3 more than that of the left-spiral chip grooves, in the embodiment, the number of the right-spiral chip grooves is 3 more than that of the left-spiral chip grooves, and the core thickness diameter is 8.6 mm. The cutter adds man-hour to carbon-fibre composite and provides more chip removal passageways for carbon fiber powder, increases the area of contact of cutter blade and air, guarantees the rigidity of cutter body when boring milling cutter side milling processing carbon-fibre material when improving the radiating efficiency.
The peripheral edge comprises a left-handed helical cutting edge 108 and a right-handed helical cutting edge 109 formed on the basis of chip grooves, and the relief angle 110 of the peripheral edge is 18 degrees. When the peripheral edge of the milling cutter performs side milling on the carbon fiber composite board, the right spiral cutting edge 109 applies tensile stress to the carbon fiber material, the left spiral cutting edge 108 applies compressive stress to the carbon fiber material, the tensile stress and the compressive stress are mutually inhibited and mutually offset when the cutting edges in two directions perform destructive cutting on a workpiece, the processing efficiency is improved, and the possibility of generation of the layering defect of the carbon fiber composite board is reduced.
And diamond coating is deposited on the surfaces of the cutting edges of the end edge and the peripheral edge by chemical vapor deposition. The size stability and the wear resistance of the cutting edge part 100 of the cutter are greatly improved, and the heat barrier effect of the coating is utilized, so that the cutting temperature of the cutting edge area of the cutter is reduced, the roughness of the machined surface of a workpiece is reduced, and the effect of prolonging the service life of the cutter is achieved.
Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.
Claims (10)
1. The utility model provides a pineapple grain bores milling cutter for processing carbon fiber composite sheet, includes the cutting part, its characterized in that, the cutting part is including seting up in the end sword and the chip groove of cutter body tip and seting up in chip groove and the week sword of cutter body week side, the end sword is the drill point cutting edge, the chip groove includes left-handed screw chip groove and dextrorotation chip groove, week sword is including left-handed screw cutting edge and the dextrorotation cutting edge based on the chip groove formation.
2. The pineapple drill milling cutter for processing carbon fiber composite plates as claimed in claim 1, wherein said end edge comprises two cutting edges and a chisel edge formed by connecting two cutting edges; thereby forming a drill tip cutting edge.
3. The pineapple grain drill milling cutter for machining carbon fiber composite plates as claimed in claim 1 or 2, wherein the first back angle of the end edge is 6-13 °, the second back angle is 18-26 °, and the cutting angle is 90-115 °.
4. The pineapple drill milling cutter for processing carbon fiber composite boards as claimed in claim 2, wherein the corresponding chip flutes are respectively provided at the rake faces of the cutting edges.
5. The pineapple drill milling cutter for machining carbon fiber composite plates, according to claim 1 or 4, wherein the flute rake angle is 5 °.
6. The pineapple drill mill for machining carbon fiber composite plates, according to claim 1, wherein two cutting edges of the end blade are provided.
7. The pineapple drill milling cutter for processing carbon fiber composite boards, according to claim 1, wherein the number of right-handed helical flutes is 2-3 more than the number of left-handed helical flutes.
8. The pineapple drill milling cutter for processing carbon fiber composite boards as claimed in claim 1, wherein the helix angle of the flutes is 25 ° to 35 °.
9. The pineapple drill milling cutter for processing carbon fiber composite boards as claimed in claim 1, wherein the relief angle of the peripheral edge is 9 ° to 20 °.
10. The pineapple drill milling cutter for machining carbon fiber composite plates as claimed in claim 1, wherein a diamond coating is provided on the surface of the blade portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220419376.6U CN217046520U (en) | 2022-02-28 | 2022-02-28 | Pineapple grain drilling and milling cutter for processing carbon fiber composite board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220419376.6U CN217046520U (en) | 2022-02-28 | 2022-02-28 | Pineapple grain drilling and milling cutter for processing carbon fiber composite board |
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| CN217046520U true CN217046520U (en) | 2022-07-26 |
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| CN202220419376.6U Active CN217046520U (en) | 2022-02-28 | 2022-02-28 | Pineapple grain drilling and milling cutter for processing carbon fiber composite board |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116673535A (en) * | 2023-07-28 | 2023-09-01 | 成都飞机工业（集团）有限责任公司 | Milling cutter capable of inhibiting CFRP profile burr defect and use method thereof |
-
2022
- 2022-02-28 CN CN202220419376.6U patent/CN217046520U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116673535A (en) * | 2023-07-28 | 2023-09-01 | 成都飞机工业（集团）有限责任公司 | Milling cutter capable of inhibiting CFRP profile burr defect and use method thereof |
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