CN105665804B - Bore milling cutting element - Google Patents
Bore milling cutting element Download PDFInfo
- Publication number
- CN105665804B CN105665804B CN201610075049.2A CN201610075049A CN105665804B CN 105665804 B CN105665804 B CN 105665804B CN 201610075049 A CN201610075049 A CN 201610075049A CN 105665804 B CN105665804 B CN 105665804B
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- CN
- China
- Prior art keywords
- angle
- footpath portion
- cutting element
- sword footpath
- relief
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/02—Milling-cutters characterised by the shape of the cutter
- B23C5/10—Shank-type cutters, i.e. with an integral shaft
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2210/00—Details of milling cutters
- B23C2210/04—Angles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2210/00—Details of milling cutters
- B23C2210/04—Angles
- B23C2210/0485—Helix angles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2210/00—Details of milling cutters
- B23C2210/20—Number of cutting edges
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Abstract
The present invention is applied to cutting element technical field, a kind of more particularly to brill milling cutting element that can be applied to Metal Substrate sheet material manufacture field, including sword footpath portion, sword footpath portion has principal screw groove, the principal screw groove includes at least two right hand helix grooves, the head dummy of sword footpath portion front end has two symmetrically arranged cutting tooths, the cutting tooth has first and second face angle, and second face angle is more than first face angle, the front end in sword footpath portion has the first relief angle and the second relief angle, and first relief angle is with respect to the second relief angle close to cutting edge.Brill milling cutting element provided by the present invention, which ensure that on the premise of thickness of knife edge and chip space, improve the sharpness of blade, realize drilling processing, the design of double relief angles can improve the overall intensity of cutting edge, and can reduce friction, increase chip space, and then make sword footpath portion proof strength and it is rigid under the premise of there is higher sharpness, excellent processing performance.
Description
Technical field
The invention belongs to cutting element technical field, more particularly to a kind of brill milling that can be applied to Metal Substrate sheet fabrication
Cut instrument.
Background technology
In PCB fields, metal-based copper-clad plate has good thermal conductivity, electric insulating quality and dimensional stability, therefore
It is using more and more extensive.But it is always a problem that the processing of metal-based copper-clad plate is in the field of business.Common PCB milling cutters can not win
Appoint Metal Substrate sheet fabrication, behind milling side, sheet material can produce a large amount of burrs, even result in sheet material and scrap.In the prior art, for gold
Belong to the milling cutter generally existing edges of boards burr of substrate material processing, the defects of processing temperature is high, processing characteristics is not good enough.
The content of the invention
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, there is provided one kind bores milling cutting element, and it is processed
Excellent performance.
The technical scheme is that：One kind bores milling cutting element, including sword footpath portion, sword footpath portion have principal screw
Groove, the principal screw groove include at least two right hand helix grooves, and the head dummy of sword footpath portion front end is symmetrically arranged with two
Cutting tooth, the cutting tooth have the first face angle and the second face angle, and relatively described second face angle of first face angle is close to described
The center of sword footpath portion front end, and second face angle is more than first face angle, the front end in sword footpath portion have the first relief angle and
Second relief angle, first relief angle is with respect to the second relief angle close to cutting edge.
Alternatively, the right hand helix groove is provided with two, and the helical angle of each right hand helix groove is equal.
Alternatively, the helical angle of each right hand helix groove is 20 to 45 degree.
Alternatively, the helical angle of each right hand helix groove is 28 to 32 degree.
Alternatively, second face angle, 5 to 20 degree bigger than the first face angle.
Alternatively, the angle of first face angle is 5 to 20 degree, and the angle of second face angle is 10 to 40 degree.
Alternatively, the point of a knife angle of sword footpath portion front end is 100 to 150 degree.
Alternatively, the angle of first relief angle is 10 to 45 degree, and the angle of second relief angle is 0 to 15 degree.
Alternatively, the diameter of sword footpath portion front end is less than the diameter of sword footpath portion rear end, and sword footpath portion is in along taper.
Alternatively, the taper in sword footpath portion is 0.01-0.05.
Brill milling cutting element provided by the present invention, its unique anterior angle, relief angle design, ensure that thickness of knife edge and chip removal
On the premise of space, the sharpness of blade is improved, double cutting edge designs realize drilling processing, and head dummy design ensure that under processing
Knife is stable and precision and further raising drilling ability, the design of double relief angles can improve the overall intensity of cutting edge, and can
Reduce friction, increase chip space, and then make sword footpath portion proof strength and it is rigid under the premise of there is higher sharpness, add
Work excellent performance.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, it will use below required in embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for ability
For the those of ordinary skill of domain, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings other attached
Figure.
Fig. 1 is the left view of brill milling cutting element provided in an embodiment of the present invention；
Fig. 2 is the front view that milling cutting element is bored in Fig. 1；
Fig. 3 is the partial schematic diagram of brill milling cutting element provided in an embodiment of the present invention；
Fig. 4 is the left view of brill milling cutting element provided in an embodiment of the present invention；
Fig. 5 is the front view that milling cutting element is bored in Fig. 4；
Fig. 6 is the left view of brill milling cutting element provided in an embodiment of the present invention；
Fig. 7 is the front view that milling cutting element is bored in Fig. 6；
Fig. 8 is the left view of brill milling cutting element provided in an embodiment of the present invention；
Fig. 9 is the front view that milling cutting element is bored in Fig. 8；
Figure 10 is the left view of brill milling cutting element provided in an embodiment of the present invention；
Figure 11 is the front view that milling cutting element is bored in Figure 10；
Figure 12 is the left view of brill milling cutting element provided in an embodiment of the present invention；
Figure 13 is the front view that milling cutting element is bored in Figure 12.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
It should be noted that when element is referred to as " being fixed on " or " being arranged at " another element, it can be directly another
On one element or it may be simultaneously present centering elements.When an element is known as " being connected to " another element, it can
To be directly to another element or may be simultaneously present centering elements.It should also be noted that, the embodiment of the present invention
In the orientation term such as left and right, upper and lower, be only relative concept or using the normal operating condition of product as reference each other, and
It should not be regarded as restrictive.
As shown in figure 1 to figure 13, a kind of brill milling cutting element provided in an embodiment of the present invention, including sword footpath portion 1, sword footpath portion
1 can be made of alloy material.Sword footpath portion 1 has principal screw groove 101, and the principal screw groove 101 includes at least two
Right hand helix groove, in the present embodiment, the right hand helix groove is provided with two, and the helical angle of each right hand helix groove is equal,
Blade type is continuous, has double cutting blade structure features, can realize that drilling is processed well.The head dummy tool of the front end of sword footpath portion 1
There are two symmetrically arranged cutting tooths, two cutting tooths are symmetrical arranged on the center 180 degree of sword footpath portion 1.The cutting tooth has
First face angle c1 and the second face angle c2, the relatively described second face angle c2 of the first face angle c1 are close to the front end of sword footpath portion 1
Center, and the second face angle c2 is more than the first face angle c1, after the front end tool first relief angle a1 and second in sword footpath portion 1
Close to cutting edge, the ligament that connects is may be provided with after the first relief angle a1 with respect to the second relief angle a2 by angle a2, the first relief angle a1, with
In the presence of the second relief angle a2, i.e., double rear corner structures.First relief angle a1 can ensure cutting hardness, and the second relief angle a2 setting can have
Effect increases chip removal ability, improves the overall intensity of cutting edge, and can reduce friction, increases chip space, and then make knife
Sword proof strength and it is rigid under the premise of there is higher sharpness, make brill milling cutting element tool provided in an embodiment of the present invention
Have while carry out the characteristic of drilling and milling, the advantage of processing Metal Substrate sheet material is very high, can be directly to metal-based copper-clad plate
It is processed, without preprocessing positioning hole, and avoids sheet fabrication from producing burr, Metal Substrate sheet material edges of boards Milling Process post-processing
Edge divider, processing temperature is low, excellent processing performance, effectively improves the processing effect of the circuit boards such as Metal Substrate sheet material.
Specifically, the pitch angle gamma of each right hand helix groove is 20 to 45 degree, and its processing effect is good.
Preferably, the pitch angle gamma of each right hand helix groove can be spent for 28 to 32, such as 29 degree, 30 degree or 31 degree etc.,
The overall chip removal ability of cutter is further improved, while reduces and bores milling, machining temperature.
Specifically, the second face angle c2 5 to 20 degree bigger than the first face angle c1.In the present embodiment, the first face angle c1
Angle be 5 to 20 degree, the angle of the second face angle c2 is 10 to 40 degree, and its drilling and milling effect is good, that is, ensure that to bore milling strong
Degree, in turn ensure that chip removal ability.
Specifically, the point of a knife angle of the front end of sword footpath portion 1 is 100 to 150 degree, and it directly can enter to Metal Substrate sheet material
Row processing, without preprocessing positioning hole.In the present embodiment, the angle of the first relief angle a1 is spent for 10 to 45, after described second
Angle a2 angle is 0 to 15 degree.Preferably, the first relief angle a1 angle can be 15 to 25 degree, such as 20 degree etc.；Second relief angle a2
Angle can be 8 to 12 degree, such as 10 degree etc., it is preferable that the point of a knife angle of the front end of sword footpath portion 1 can be that 115 to 135 spend, such as
120 degree etc., to ensure to process lower knife stabilization and precision, realize that drilling is processed.
Specifically, the diameter of the front end of sword footpath portion 1 is less than the diameter of the rear end of sword footpath portion 1, and sword footpath portion 1 is in along cone
Shape, it can ensure that bottom tool has certain axial force and positioning precision to new-type cutter in process, lifting processing sheet material
Dimensional accuracy；And in the case where ensureing cutting and chip removal ability, the integral rigidity of cutter is improved, anti-distortion ability is more
By force, its service life is increased.
In the present embodiment, the taper in sword footpath portion 1 is 0.01-0.05, it is preferable that the taper in sword footpath portion 1 can be
0.02-0.03.The taper refers between the rear end diameter K2 of sword footpath portion 1, point diameter K1 difference and the length L2 of cutting portion 10
Ratio, i.e. gradient Taper=(K2-K1)/L2.When multilayer circuit board (metal-based copper-clad plate) is laminated and processed, along wimble structure
Sword footpath portion 1 can play a part of positioning, be not easy to misplace between top sheet material and lower section sheet material, with reduce top sheet material and under
Size between square plate material is poor, lifts edges of boards precision.
As shown in Figure 10 and Figure 11, it is corresponding diagram, and two totem culture line identical regions are identical faces.Such as Figure 12 and figure
Shown in 13, it is corresponding diagram, and two totem culture line identical regions are identical faces.
Specifically, the rear end in sword footpath portion 1 can be welded with shank section, and shank section can be made of stainless steel material.
Table 1 is the actual measurement situation for boring milling cutting element and comparative example that the embodiment of the present invention is provided, and experiment condition, bores milling
The specification of cutting element is 1.5-7.5mm (external diameter-sword length), cutting parameter：Rotating speed 32krpm, amount of feeding 4.8mm/s, process plate
Material is fine copper plate, thickness of slab 1.5mm, and it is folded for 1 to fold number, in terms of measured result, using the brill milling cutting element of technical solution of the present invention,
Its average life span reaches more than 6.28m, and edges of boards quality is good, impulse- free robustness, and cutter is normal wear form without chipping, dust discharge situation
Preferably, no plug dirt phenomenon.And in comparative example, its life-span is very short, and most of lower knife is i.e. disconnected, and the life-span is not less than 0.2m, edges of boards
It is of poor quality, there is obvious burr, and breaking and serious chipping phenomenon easily occurs, reliability is low, short life.
Table 1
Table 2 is another actual measurement situation for boring milling cutting element and comparative example that the embodiment of the present invention is provided, experiment condition,
The specification for boring milling cutting element is 1.5-7.5mm (external diameter-sword length), cutting parameter：Rotating speed 32krpm, amount of feeding 4.8mm/s, adds
Work sheet material thickness of slab 1.5mm, is folded number and folded for 1, in terms of measured result, using the brill milling of technical solution of the present invention to cover copper aluminium base
Cutting element, its average life span reaches more than 9.69m, and edges of boards quality is good, impulse- free robustness, and cutter is normal wear form without chipping,
Dust discharge situation is preferable, no plug dirt phenomenon.And in comparative example, its life-span is very short, and most of lower knife is i.e. disconnected, the life-span not less than
1m, edges of boards are of poor quality, there is obvious burr, and breaking and serious chipping phenomenon easily occurs, and dust discharge situation is poor, and reliability is low, uses
Short life.
Table 2
The brill milling cutting element that the embodiment of the present invention is provided, its right hand helix groove are provided with two, the cutting tooth tool
There are the first face angle c1 and the second face angle c2, the front end tool first relief angle a1 and the second relief angle a2 in sword footpath portion 1, improve cutting edge
Overall intensity, and friction can be reduced, increase chip space, and then make blade proof strength and it is rigid under the premise of have
There is higher sharpness, brill milling cutting element provided in an embodiment of the present invention is had while is carried out the characteristic of drilling and milling,
It is very high to process the advantage of Metal Substrate sheet material, directly metal-based copper-clad plate can be processed, without preprocessing positioning hole, and
Sheet fabrication is avoided to produce burr, Metal Substrate sheet material edges of boards Milling Process post-processing Edge divider, processing temperature is low, processing characteristics
It is good, effectively improve the processing effect of the circuit boards such as Metal Substrate sheet material；And it has taper so that processes the size of sheet material
Precision is guaranteed, and effectively increases the application and processing efficiency of cutter, excellent processing performance.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modification, equivalent substitution or improvement made within refreshing and principle etc., should be included in the scope of the protection.
Claims (6)
1. one kind bores milling cutting element, including sword footpath portion, it is characterised in that sword footpath portion has principal screw groove, the main spiral shell
Spin slot includes at least two right hand helix grooves, and the head dummy of sword footpath portion front end has two on sword footpath portion center 180
Symmetrically arranged cutting tooth is spent, the cutting tooth has the first face angle and the second face angle, first face angle relatively described second
Face angle is close to the center of sword footpath portion front end, and second face angle is more than first face angle, the front end in sword footpath portion
Have the first relief angle and the second relief angle, be provided with the ligament that connects after the first relief angle, first relief angle with respect to the second relief angle close to
Cutting edge, the angle of first relief angle is 15 to 25 degree；The angle of second relief angle is 8 to 12 degree；Sword footpath portion is in
Along taper, the taper in sword footpath portion is 0.02-0.03.
2. milling cutting element is bored as claimed in claim 1, it is characterised in that the right hand helix groove is provided with two, each institute
The helical angle for stating right hand helix groove is equal.
3. as claimed in claim 1 bore milling cutting element, it is characterised in that the helical angle of each right hand helix groove be 20 to
45 degree.
4. as claimed in claim 1 bore milling cutting element, it is characterised in that the helical angle of each right hand helix groove be 28 to
32 degree.
5. milling cutting element is bored as claimed in claim 1, it is characterised in that second face angle is bigger by 5 to 20 than the first face angle
Degree.
6. milling cutting element is bored as claimed in claim 1, it is characterised in that the angle of first face angle is spent for 5 to 20, institute
The angle for stating the second face angle is 10 to 40 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610075049.2A CN105665804B (en) | 2016-02-02 | 2016-02-02 | Bore milling cutting element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610075049.2A CN105665804B (en) | 2016-02-02 | 2016-02-02 | Bore milling cutting element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105665804A CN105665804A (en) | 2016-06-15 |
| CN105665804B true CN105665804B (en) | 2017-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610075049.2A Active CN105665804B (en) | 2016-02-02 | 2016-02-02 | Bore milling cutting element |
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| CN (1) | CN105665804B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106113171A (en) * | 2016-08-17 | 2016-11-16 | 江苏飞达钻头股份有限公司 | Carpenter's smoothing, reamer |
| CN107931673A (en) * | 2017-12-22 | 2018-04-20 | 珠海市海辉电子有限公司 | A kind of Rigid Flex Special drill point |
| CN108581000B (en) * | 2018-06-12 | 2024-01-30 | 深圳市金洲精工科技股份有限公司 | Milling cutter for processing metal substrate material |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH696631A5 (en) * | 2003-10-01 | 2007-08-31 | Fraisa Sa | Milling tool for machining soft materials. |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7563059B2 (en) * | 2006-04-21 | 2009-07-21 | Yg-1 Co., Ltd. | Sinusoidal angled rotary cutting tool |
| US20080145158A1 (en) * | 2006-12-13 | 2008-06-19 | Ching-Ching Chen | Milling Cutter |
| EP2030711A1 (en) * | 2007-08-30 | 2009-03-04 | Fraisa SA | Milling tool for machining soft materials |
| DE102007050050A1 (en) * | 2007-10-17 | 2009-04-23 | Kennametal Inc. | Concentric tool, especially drills |
| DE102012009038A1 (en) * | 2012-05-04 | 2013-11-07 | Hufschmied Zerspanungssysteme Gmbh | Milling cutter and milling process |
| CN104551162A (en) * | 2013-10-16 | 2015-04-29 | 深圳市金洲精工科技股份有限公司 | End milling cutter |
| AT14275U1 (en) * | 2014-08-06 | 2015-07-15 | Günther Wirth Hartmetallwerkzeuge Gmbh & Co Kg | milling tool |
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2016
- 2016-02-02 CN CN201610075049.2A patent/CN105665804B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH696631A5 (en) * | 2003-10-01 | 2007-08-31 | Fraisa Sa | Milling tool for machining soft materials. |
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| CN105665804A (en) | 2016-06-15 |
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