CN207606322U - A kind of high efficiency drill of processing fibrous composite - Google Patents
A kind of high efficiency drill of processing fibrous composite Download PDFInfo
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- CN207606322U CN207606322U CN201721850520.7U CN201721850520U CN207606322U CN 207606322 U CN207606322 U CN 207606322U CN 201721850520 U CN201721850520 U CN 201721850520U CN 207606322 U CN207606322 U CN 207606322U
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- cutting edge
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- fibrous composite
- high efficiency
- apex point
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Abstract
The utility model provides a kind of high efficiency drill of processing fibrous composite, including apex point portion, chip removal portion and shank；Apex point portion includes rake face, flank and chisel edge；Rake face and flank are crossed to form main cutting edge；Main cutting edge includes the linear cutting edge being connected and indent parabolic type cutting edge.The high efficiency drill of processing fibrous composite provided by the utility model, main cutting edge is crossed to form by linear cutting edge and indent parabolic type cutting edge, cutting resistance can effectively be disperseed during converted products, lower the axial thrust load generated in process, and can quick cut staple, effectively reduce and occur burr and layering on product to be processed.Using the high efficiency drill of processing fibrous composite provided by the utility model, process the hole that fibrous composite obtains, the surface roughness accuracy class in hole is high, and impulse- free robustness and lamination effectively increase the product qualification rate and processing efficiency of fibre composite products processing.
Description
Technical field
The utility model is related to cutting tool technical field, more particularly to a kind of efficient brill of processing fibrous composite
Head.
Background technology
The laminated component that carbon fibre composite is constituted with titanium alloy material is widely used in aircraft wing and tail vane, is folded
A large amount of riveted holes or bolt apertures are needed in layer component assembling process.In these aeronautical products assemble drilling, best technique
It is on carbon fibre composite and titanium alloy material laminated component while to process required riveted holes or bolt apertures, this is
Ensure laminated material component product bonding strength, rigidity and safety main means.
Drilling is a particularly important process in carbon fibre composite product assembly processing technology.Since carbon fiber is multiple
Condensation material performance is crisp, and intensity is big, and hardness is high, and the capacity of heat transmission is poor (thermal coefficient is only the 1/10~1/5 of austenitic stainless steel), respectively
Anisotropy, interlaminar strength is low, thus cut when easy tod produce under the action of cutting force carbon fibre composite burn, layering,
The defects of tearing and flash, and drill bit is easy to wear, not only hole quality is difficult to ensure, but also production efficiency is low.Therefore, it is used to add
The drill bit structure of work carbon fibre composite is further improved.
Utility model content
To solve the above-mentioned deficiency mentioned in the prior art, the utility model provides a kind of height of processing fibrous composite
Imitate drill bit, including apex point portion, chip removal portion and shank；The chip removal portion be equipped with chip space from apex point portion to shank that extended spirally from and
End cutting edge；The apex point portion includes rake face, flank and chisel edge；The rake face and the flank are crossed to form master and cut
Cut sword；The main cutting edge includes the linear cutting edge being connected and indent parabolic type cutting edge；Wherein, the linear interpolation
Sword is located at the described one end of apex point portion far from the shank；The indent parabolic type cutting edge is located at the apex point portion close to institute
State one end of shank.
Further, the drill point angle in the apex point portion is 60 °~90 °.
Further, the chisel edge is in N shapes.
Further, the first relief angle of the main cutting edge is 8 °~12 °, and the second relief angle of the main cutting edge is 24 °
~30 °.
Further, the first relief angle of the end cutting edge be 8 °~12 °, the second relief angle of the end cutting edge be 24 °~
30°。
Further, the surface in the apex point portion and the chip removal portion is coated with TiSiAl nano-composite coatings.
The high efficiency drill of processing fibrous composite provided by the utility model, by linear cutting edge and indent parabolic type
Cutting edge is crossed to form main cutting edge, and cutting resistance can be effectively disperseed during converted products, lowers in process
The axial thrust load of generation, and can quick cut staple, effectively reduce and occur burr and layering on product to be processed.Using this practicality
The high efficiency drill of the processing fibrous composite of novel offer, the hole that processing fibrous composite obtains, the surface roughness in hole
Accuracy class is high, and the inlet in hole and the exit impulse- free robustness and lamination in hole effectively increase fibre composite products
The product qualification rate and processing efficiency of processing.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is
Some embodiments of the utility model, for those of ordinary skill in the art, in the premise of not making the creative labor property
Under, other drawings may also be obtained based on these drawings.
Fig. 1 is the structural schematic diagram of the high efficiency drill of processing fibrous composite provided by the utility model；
Fig. 2 is the left view in Fig. 1 apex points portion；
Fig. 3 is the close-up schematic view in the portions A in Fig. 1；
Fig. 4 is the K-K sectional views of Fig. 1；
Fig. 5 is the P-P sectional views of Fig. 3.
Reference numeral：
10 apex point portion, 11 rake face, 12 flank
13 chisel edge, 14 main cutting edge, 20 chip removal portion
21 chip space, 22 end cutting edge, 30 shank
141 linear cutting edge, 142 indent parabolic type cutting edge
Specific implementation mode
It is new below in conjunction with this practicality to keep the purpose, technical scheme and advantage of the utility model embodiment clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, the every other embodiment that those of ordinary skill in the art are obtained without creative efforts belong to
The range of the utility model protection.
In the description of the present invention, it should be noted that term "center", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate
Or imply that signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore cannot understand
For limitations of the present invention.In addition, term " first ", " second " are used for description purposes only, and should not be understood as instruction or
Imply relative importance.
As shown in fig. 1~fig. 5, the utility model embodiment provides a kind of high efficiency drill of processing fibrous composite, packet
Include apex point portion 10, chip removal portion 20 and shank 30；The chip removal portion 20 is equipped with the chip removal extended spirally from apex point portion 10 to shank 30
Slot 21 and end cutting edge 22；The apex point portion 10 includes rake face 11, flank 12 and chisel edge 13；The rake face 11 and described
Flank 12 is crossed to form main cutting edge 14；The main cutting edge 14 includes the linear cutting edge 141 being connected and indent parabolic
Line style cutting edge 142；Wherein, the linear cutting edge 141 is located at 10 one end far from the shank 30 of the apex point portion；It is described
Indent parabolic type cutting edge 142 is located at the apex point portion 10 close to one end of the shank 30.
When it is implemented, as shown in Figure 1, the utility model embodiment provides a kind of efficient brill of processing fibrous composite
Head is whole to be made of hard alloy, including the coaxial molding apex point portion 10 of one, chip removal portion 20 and shank 30；As shown in Figure 1, row
Bits portion 20 is equipped with the chip space 21 extended spirally from apex point portion 10 to shank 30 and end cutting edge 22, and wherein chip space 21 is for arranging
Go out the cutting swarf that the when of cutting generates, end cutting edge 22 is used to modify the hole wall in the hole made of apex point portion 10, and when cutting its
Certain guiding role；As shown in figure 4, the first relief angle of the end cutting edge 22 is 8 °~12 °, the end cutting edge 22 second
Relief angle is 24 °~30 °.
As shown in Figure 2 and Figure 3, the drill point angle in apex point portion 10 is 60 °~90 °；Apex point portion 10 includes rake face 11, flank
12 and chisel edge 13；Wherein chisel edge 13 is located at apex point, is in N shapes；The length of chisel edge 13 is 0.02 times of bit diameter in the present embodiment,
Shorter chisel edge 13 can be dramatically reduced axial thrust load when cutting, occur when reducing carbon fibre composite processing layering,
The defects of tearing, burr；Main cutting edge 14 is crossed to form by rake face 11 and flank 12, and main cutting edge 14 includes being connected
Linear cutting edge 141 and indent parabolic type cutting edge 142, wherein linear cutting edge 141 is located at apex point portion 10 far from shank 30
One end；Indent parabolic type cutting edge 142 is located at apex point portion 10 close to one end of shank 30, indent parabolic type cutting edge
Intersect with end cutting edge 22 142 one end far from linear cutting edge 141；It is cut by linear cutting edge 141 and indent parabolic type
The main cutting edge 14 that sword 142 is crossed to form can effectively disperse cutting resistance during converted products, lower in process
The axial thrust load of middle generation, and can quick cut staple, effectively reduce product to be processed on there is burr and layering；Such as Fig. 5 institutes
Show, the first relief angle of main cutting edge 14 is 8 °~12 °, and the second relief angle of main cutting edge 14 is 24 °~30 °.
The high efficiency drill specific working mode for the processing fibrous composite that the utility model embodiment provides is described as follows：
First stage, chisel edge 13 contact and squeeze the surface of workpiece, and due to the extrusion effect of chisel edge 13, axial thrust load is rapid
Increase；The linear cutting edge 141 of second stage, main cutting edge 14 enters workpiece, starts cutting workpiece, axial thrust load is with relatively slightly
Degree increases；The indent parabolic type cutting edge 142 of phase III, main cutting edge 14 enter workpiece, start flash removed:Fourth order
Section, chisel edge 13 reach the bottom of workpiece, and when being bored from workpiece lower surface due to chisel edge 13, axial thrust load can reduce suddenly, hold at this time
Lamination easily is generated in the exit in hole, and the present embodiment is by 142 phase of linear cutting edge 141 and indent parabolic type cutting edge
The main cutting edge 14 formed is handed over, can effectively disperse cutting resistance in process, reduces and generates in process
Axial thrust load, chisel edge 13 are bored from after workpiece lower surface, and axial thrust load not will produce mutation, reduce the generation of lamination, together
When indent parabolic type cutting edge 142 can quick cut staple, effectively avoid occurring burr on product to be processed:5th stage,
Main cutting edge 14 is bored from workpiece, and end cutting edge 22 enters workpiece, proceeds by fraising.
Using identical technological parameter and drilling mode, the processing fibrous composite that the utility model embodiment is provided
High efficiency drill, referred to as drill bit 1, and be commercially available for the conventional drill of carbon fibre composite, referred to as drill bit 2, identical
Drilling test is carried out on carbon fibre composite, after drilling, the hole quality of exit face is measured using super depth-of-field microscope, is made
The roughness of hole wall is measured with coarse measurement instrument.Drill bit 1 and 2 comparison result of drill bit are described as follows:
Burr very little when processing the 1st hole of drill bit 2, and have small layering, with the increase of hole count, burr is quickly
Become more, layering also begins to aggravate, and burr and lamination be very seriously when the 5th hole；It puts down in preceding 5 holes that drill bit 2 is processed
Equal 0.8 μm of roughness value Ra ＞；
Drill bit 1 does not have layering and burr when processing the 1st hole, and quality is fine, and quality remains unchanged very when processing the 5th hole
It is good, continue drilling experiment, finally found that drill bit 1 at least can process 20 without layering, carrot-free high quality holes, drill bit 1
Average roughness value Ra≤0.48 μm in preceding 5 holes of processing.
The high efficiency drill for the processing fibrous composite that the utility model embodiment provides, is thrown by linear cutting edge and indent
Object line style cutting edge is crossed to form main cutting edge, and cutting resistance can be effectively disperseed during converted products, and attenuating is being processed
The axial thrust load generated in the process, and can quick cut staple, effectively reduce product to be processed on there is burr and layering.Using
The high efficiency drill for the processing fibrous composite that the utility model embodiment provides, the hole that processing carbon fibre composite obtains,
The surface roughness accuracy class in hole is high, and the inlet in hole and the exit impulse- free robustness and lamination in hole effectively increase carbon
The product qualification rate and processing efficiency of fibre composite products processing.
Preferably, the surface in the apex point portion 10 and the chip removal portion 20 is coated with TiSiAl nano-composite coatings.Specifically
When implementation, it is covered with one layer of TiSiAl nano-composite coating on the surface in apex point portion 10 and chip removal portion 20, is made it have more preferable heat-insulated
Performance and better wear-resisting property, further increase the service life of drill bit.
Although herein it is more used such as apex point portion, rake face, flank, chisel edge, main cutting edge, chip removal portion,
The terms such as chip space, end cutting edge, shank, linear cutting edge, indent parabolic type cutting edge, but be not precluded and use other arts
The possibility of language.The use of these terms is merely for the convenience of describing and explaining the nature of the invention；They are solved
It is contrary to the spirit of the present invention to be interpreted into any one of the additional limitations all.
Finally it should be noted that：The above various embodiments is only to illustrate the technical solution of the utility model, rather than limits it
System；Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should
Understand：It still can be with technical scheme described in the above embodiments is modified, either to which part or whole
Technical characteristic carries out equivalent replacement；And these modifications or replacements, this practicality that it does not separate the essence of the corresponding technical solution are new
The range of each embodiment technical solution of type.
Claims (6)
1. a kind of high efficiency drill of processing fibrous composite, including apex point portion (10), chip removal portion (20) and shank (30)；It is described
Chip removal portion (20) is equipped with the chip space (21) extended spirally from apex point portion (10) to shank (30) and end cutting edge (22)；Its feature
It is：The apex point portion (10) includes rake face (11), flank (12) and chisel edge (13)；The rake face (11) and it is described after
Knife face (12) is crossed to form main cutting edge (14)；The main cutting edge (14) includes the linear cutting edge (141) being connected and interior
Recessed parabolic type cutting edge (142)；Wherein, the linear cutting edge (141) is located at the apex point portion (10) far from the shank
(30) one end；The indent parabolic type cutting edge (142) is located at the apex point portion (10) close to the one of the shank (30)
End.
2. processing the high efficiency drill of fibrous composite according to claim 1, it is characterised in that：The apex point portion (10)
Drill point angle is 60 °~90 °.
3. processing the high efficiency drill of fibrous composite according to claim 1, it is characterised in that：The chisel edge (13) is in N
Shape.
4. processing the high efficiency drill of fibrous composite according to claim 1, it is characterised in that：The main cutting edge (14)
The first relief angle be 8 °~12 °, the second relief angle of the main cutting edge (14) is 24 °~30 °.
5. processing the high efficiency drill of fibrous composite according to claim 1, it is characterised in that：The end cutting edge (22)
The first relief angle be 8 °~12 °, (22) second relief angle of the end cutting edge be 24 °~30 °.
6. processing the high efficiency drill of fibrous composite according to claim 1, it is characterised in that：The apex point portion (10) and
The surface of the chip removal portion (20) is coated with TiSiAl nano-composite coatings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721850520.7U CN207606322U (en) | 2017-12-26 | 2017-12-26 | A kind of high efficiency drill of processing fibrous composite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721850520.7U CN207606322U (en) | 2017-12-26 | 2017-12-26 | A kind of high efficiency drill of processing fibrous composite |
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| Publication Number | Publication Date |
|---|---|
| CN207606322U true CN207606322U (en) | 2018-07-13 |
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ID=62799703
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721850520.7U Active CN207606322U (en) | 2017-12-26 | 2017-12-26 | A kind of high efficiency drill of processing fibrous composite |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107984005A (en) * | 2017-12-26 | 2018-05-04 | 厦门西威迪新材料技术有限公司 | A kind of high efficiency drill for processing fibrous composite |
-
2017
- 2017-12-26 CN CN201721850520.7U patent/CN207606322U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107984005A (en) * | 2017-12-26 | 2018-05-04 | 厦门西威迪新材料技术有限公司 | A kind of high efficiency drill for processing fibrous composite |
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