CN105665804A - Drilling and milling cutting tool - Google Patents
Drilling and milling cutting tool Download PDFInfo
- Publication number
- CN105665804A CN105665804A CN201610075049.2A CN201610075049A CN105665804A CN 105665804 A CN105665804 A CN 105665804A CN 201610075049 A CN201610075049 A CN 201610075049A CN 105665804 A CN105665804 A CN 105665804A
- Authority
- CN
- China
- Prior art keywords
- angle
- cutting element
- milling cutting
- degree
- sword footpath
- Prior art date
- 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.)
- Granted
Links
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
Abstract
The invention is suitable for the technical field of cutting tools and particularly relates to a drilling and milling cutting tool capable of being applied to the field of metal base plate processing. The drilling and milling cutting tool comprises a blade radial part, wherein the blade radial part is provided with a main spiral groove, the main spiral groove comprises at least two right-handed spiral grooves, the head at the front end of the blade radial part is provided with two cutting teeth symmetrically arranged, the cutting teeth are provided with first and second face angles, the second face angles are larger than the first face angles, the front end of the blade radial part is provided with a first relief angle and a second relief angle, and the first relief angle is closer to the cutting edge relative to the second relief angle. The drilling and milling cutting tool provided by the invention improves blade keenness under the condition of ensuring blade thickness and chip discharging space and realizes drilling and milling processing. Through the design of the double relief angles, the integral strength of the cutting edge can be improved, friction can be reduced, and chip discharging space is increased. The blade radial part has high keenness under the condition of ensuring strength and rigidity. The processing performance is great.
Description
Technical field
The invention belongs to cutting element technical field, particularly relate to a kind of brill milling cutting element that can be applicable to Metal Substrate sheet fabrication.
Background technology
In PCB field, metal-based copper-clad plate has good heat conductivity, electric insulating quality and dimensional stability, and therefore its application is more and more extensive. But the processing of metal-based copper-clad plate is in the field of business is always up a difficult problem. Common PCB milling cutter cannot be competent at Metal Substrate sheet fabrication, and behind milling limit, sheet material can produce a large amount of burr, even results in sheet material and scraps. In prior art, for defects such as the milling cutter ubiquity edges of boards burr of Metal Substrate sheet fabrication, processing temperature height, processing characteristics is not good enough.
Summary of the invention
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, it is provided that a kind of brill milling cutting element, its excellent processing performance.
The technical scheme is that a kind of brill milling cutting element, including sword footpath portion, described sword footpath portion has principal screw groove, described principal screw groove includes at least two right hand helix grooves, the head dummy of front end, portion, described sword footpath has two symmetrically arranged cutting teeth, described cutting tooth has first angle and dihedral angle, the relatively described dihedral angle in described first angle is near the center of front end, portion, described sword footpath, and described dihedral angle is more than described first angle, the front end in described sword footpath portion has the first relief angle and the second relief angle, relative second relief angle of described first relief angle is close to cutting edge.
Alternatively, described right hand helix groove is provided with two, and the helical angle of each described right hand helix groove is equal.
Alternatively, the helical angle of each described right hand helix groove is 20 to 45 degree.
Alternatively, the helical angle of each described right hand helix groove is 28 to 32 degree.
Alternatively, described dihedral angle is spent than first angle big 5 to 20.
Alternatively, the angle at described first angle is 5 to 20 degree, and the angle of described dihedral angle is 10 to 40 degree.
Alternatively, the point of a knife angle of front end, portion, described sword footpath is 100 to 150 degree.
Alternatively, the angle of described first relief angle is 10 to 45 degree, and the angle of described second relief angle is 0 to 15 degree.
Alternatively, the diameter of front end, portion, described sword footpath is less than the diameter of rear end, portion, sword footpath, and described sword footpath portion is in along taper.
Alternatively, the tapering in described sword footpath portion is 0.01-0.05.
Brill milling cutting element provided by the present invention, the anterior angle of its uniqueness, relief angle design, ensure that under the premise of thickness of knife edge and chip space, improve the sharpness of blade, the design of double; two cutting edges achieves drilling processing, head dummy design ensure that the lower cutter of processing is stable and precision and raising drilling ability further, the design of double; two relief angles can improve the intensity that cutting edge is overall, and friction can be reduced, increase chip space, and then make sword footpath portion have higher sharpness, excellent processing performance under the premise of proof strength and rigidity.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme in the embodiment of the present invention, the accompanying drawing used required in embodiment will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the left view boring milling cutting element that the embodiment of the present invention provides;
Fig. 2 is the front view boring milling cutting element in Fig. 1;
Fig. 3 is the partial schematic diagram boring milling cutting element that the embodiment of the present invention provides;
Fig. 4 is the left view boring milling cutting element that the embodiment of the present invention provides;
Fig. 5 is the front view boring milling cutting element in Fig. 4;
Fig. 6 is the left view boring milling cutting element that the embodiment of the present invention provides;
Fig. 7 is the front view boring milling cutting element in Fig. 6;
Fig. 8 is the left view boring milling cutting element that the embodiment of the present invention provides;
Fig. 9 is the front view boring milling cutting element in Fig. 8;
Figure 10 is the left view boring milling cutting element that the embodiment of the present invention provides;
Figure 11 is the front view boring milling cutting element in Figure 10;
Figure 12 is the left view boring milling cutting element that the embodiment of the present invention provides;
Figure 13 is the front view boring milling cutting element in Figure 12.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated. Should be appreciated that specific embodiment described herein is only in order to explain the present invention, is not intended to limit the present invention.
It should be noted that be referred to as " being fixed on " or " being arranged at " another element when element, it can directly on another element or may be simultaneously present centering elements. When an element is known as " being connected to " another element, it can be directly to another element or may be simultaneously present centering elements. Also, it should be noted the orientation term such as left and right, upper and lower in the embodiment of the present invention, be only relative concept or with the normal operating condition of product for reference each other, and should not be regarded as have restrictive.
As shown in figure 1 to figure 13, the one that the embodiment of the present invention provides bores milling cutting element, and including sword footpath portion 1, sword footpath portion 1 can adopt alloy material to make. Described sword footpath portion 1 has principal screw groove 101, described principal screw groove 101 includes at least two right hand helix grooves, in the present embodiment, described right hand helix groove is provided with two, the helical angle of each described right hand helix groove is equal, blade type is continuous, has double; two cutting blade structure feature, it is possible to realize drilling processing well. The head dummy of front end, portion 1, described sword footpath has two symmetrically arranged cutting teeth, and two cutting teeth are symmetrical arranged about 180 degree of center, portion 1, sword footpath.Described cutting tooth has first angle c1 and dihedral angle c2, the described relatively described dihedral angle c2 of first angle c1 is near the center of front end, portion 1, described sword footpath, and described dihedral angle c2 is more than described first angle c1, the front end in described sword footpath portion 1 has the first relief angle a1 and the second relief angle a2, the relative second relief angle a2 of described first relief angle a1 is close to cutting edge, the ligament that connects can be provided with after first relief angle a1, there is the second relief angle a2, i.e. double, two rear corner structures. first relief angle a1 can ensure that cutting hardness, arranging of second relief angle a2 can increase effectively chip removal ability, improve the intensity that cutting edge is overall, and friction can be reduced, increase chip space, and then make blade have higher sharpness under the premise of proof strength and rigidity, the milling cutting element that bores that the embodiment of the present invention provides is made to have the characteristic simultaneously carrying out drilling and milling, the advantage of processing Metal Substrate sheet material is very high, directly metal-based copper-clad plate can be processed, hole is positioned without preprocessing, and avoid sheet fabrication to produce burr, Metal Substrate sheet material edges of boards Milling Process post-treatment Edge divider, processing temperature is low, excellent processing performance, effectively improve the processing effect of the circuit boards such as Metal Substrate sheet material.
Specifically, the pitch angle gamma of each described right hand helix groove is 20 to 45 degree, and its processing effect is good.
Preferably, the pitch angle gamma of each described right hand helix groove can be 28 to 32 degree, for instance 29 degree, 30 degree or 31 degree etc., improves the overall chip removal ability of cutter further, reduces brill milling, machining temperature simultaneously.
Specifically, described dihedral angle c2 spends than first angle c1 big 5 to 20. In the present embodiment, the angle of described first angle c1 is 5 to 20 degree, and the angle of described dihedral angle c2 is 10 to 40 degree, and it bores, milling effect is good, namely ensure that brill milling intensity, in turn ensure that chip removal ability.
Specifically, the point of a knife angle of front end, portion 1, described sword footpath is 100 to 150 degree, and Metal Substrate sheet material can be directly processed by it, it is not necessary to hole, preprocessing location. In the present embodiment, the angle of described first relief angle a1 is 10 to 45 degree, and the angle of described second relief angle a2 is 0 to 15 degree. Preferably, the angle of the first relief angle a1 can be 15 to 25 degree, for instance 20 degree etc.; The angle of the second relief angle a2 can be 8 to 12 degree, for instance 10 degree etc., it is preferable that the point of a knife angle of front end, portion 1, sword footpath can be 115 to 135 degree, for instance 120 degree etc., to ensure that the lower cutter of processing is stablized and precision, it is achieved drilling is processed.
Specifically, the diameter of front end, portion 1, described sword footpath is less than the diameter of rear end, portion 1, sword footpath, and described sword footpath portion 1 is in along taper, it is possible to ensures that new-type cutter bottom tool in the course of processing has certain axial force and positioning precision, promotes the dimensional accuracy of processing sheet material; And when ensureing cutting and chip removal ability, improve the integral rigidity of cutter, anti-distortion ability is higher, increases its service life.
In the present embodiment, the tapering in described sword footpath portion 1 is 0.01-0.05, it is preferable that the tapering in described sword footpath portion 1 can be 0.02-0.03. Described tapering refers to the ratio between difference and the length L2 of cutting portion 10 of portion 1, sword footpath rear end diameter K2, point diameter K1, i.e. gradient Taper=(K2-K1)/L2. Man-hour is added in multilayer circuit board (metal-based copper-clad plate) stacking, the effect of location can be played by the sword footpath portion 1 of suitable wimble structure, not easily misplace between top sheet material and lower section sheet material, to reduce the difference in size between top sheet material and lower section sheet material, promote edges of boards precision.
As shown in Figure 10 and Figure 11, it is corresponding diagram, and the region that two totem culture lines are identical is identical faces.As shown in Figure 12 and Figure 13, it is corresponding diagram, and the region that two totem culture lines are identical is identical faces.
Specifically, the rear end in sword footpath portion 1 can be welded with shank section, and shank section can adopt stainless steel material to make.
Table 1 is the actual measurement situation boring milling cutting element and comparative example that the embodiment of the present invention provides, experiment condition, the specification boring milling cutting element is 1.5-7.5mm (external diameter-sword length), cutting parameter: rotating speed 32krpm, amount of feeding 4.8mm/s, processing sheet material is fine copper plate, thickness of slab 1.5mm, folded number be 1 fold, from measured result, adopting the brill milling cutting element of technical solution of the present invention, its average life reaches more than 6.28m, and edges of boards quality is good, impulse-free robustness, cutter is without chipping, for normal wear form, dust discharge situation is all better, without plug dirt phenomenon. And in comparative example, its life-span is very short, namely the lower cutter of major part breaks, and the life-span, edges of boards were of poor quality all not less than 0.2m, has obvious burr, and breaking and serious chipping phenomenon easily occur, and reliability is low, and the life-span is short.
Table 1
Table 2 is another actual measurement situation boring milling cutting element and comparative example that the embodiment of the present invention provides, experiment condition, the specification boring milling cutting element is 1.5-7.5mm (external diameter-sword length), cutting parameter: rotating speed 32krpm, amount of feeding 4.8mm/s, processes sheet material for covering copper aluminium base, thickness of slab 1.5mm, folded number be 1 fold, from measured result, adopting the brill milling cutting element of technical solution of the present invention, its average life reaches more than 9.69m, and edges of boards quality is good, impulse-free robustness, cutter is without chipping, for normal wear form, dust discharge situation is all better, without plug dirt phenomenon. And in comparative example, its life-span is very short, namely the lower cutter of major part breaks, and the life-span, edges of boards were of poor quality all not less than 1m, has obvious burr, and breaking and serious chipping phenomenon easily occur, and dust discharge situation is poor, and reliability is low, and service life is short.
Table 2
The brill milling cutting element that the embodiment of the present invention provides, its right hand helix groove is provided with two, described cutting tooth has first angle c1 and dihedral angle c2, the front end in described sword footpath portion 1 has the first relief angle a1 and the second relief angle a2, improve the intensity that cutting edge is overall, and friction can be reduced, increase chip space, and then make blade have higher sharpness under the premise of proof strength and rigidity, the milling cutting element that bores that the embodiment of the present invention provides is made to have the characteristic simultaneously carrying out drilling and milling, the advantage of processing Metal Substrate sheet material is very high, directly metal-based copper-clad plate can be processed, hole is positioned without preprocessing, and avoid sheet fabrication to produce burr, Metal Substrate sheet material edges of boards Milling Process post-treatment Edge divider, processing temperature is low, excellent processing performance, effectively improve the processing effect of the circuit boards such as Metal Substrate sheet material, and it has tapering so that the dimensional accuracy of processing sheet material is guaranteed, and is effectively increased application and the working (machining) efficiency of cutter, excellent processing performance.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all any amendment, equivalent replacement or improvement etc. made within the spirit and principles in the present invention, should be included within protection scope of the present invention.
Claims (10)
1. one kind is bored milling cutting element, including sword footpath portion, it is characterized in that, described sword footpath portion has principal screw groove, described principal screw groove includes at least two right hand helix grooves, the head dummy of front end, portion, described sword footpath has two symmetrically arranged cutting teeth, described cutting tooth has first angle and dihedral angle, the relatively described dihedral angle in described first angle is near the center of front end, portion, described sword footpath, and described dihedral angle is more than described first angle, the front end in described sword footpath portion has the first relief angle and the second relief angle, and relative second relief angle of described first relief angle is close to cutting edge.
2. brill milling cutting element as claimed in claim 1, it is characterised in that described right hand helix groove is provided with two, and the helical angle of each described right hand helix groove is equal.
3. brill milling cutting element as claimed in claim 1, it is characterised in that the helical angle of each described right hand helix groove is 20 to 45 degree.
4. brill milling cutting element as claimed in claim 1, it is characterised in that the helical angle of each described right hand helix groove is 28 to 32 degree.
5. brill milling cutting element as claimed in claim 1, it is characterised in that described dihedral angle is spent than first angle big 5 to 20.
6. brill milling cutting element as claimed in claim 1, it is characterised in that the angle at described first angle is 5 to 20 degree, the angle of described dihedral angle is 10 to 40 degree.
7. the brill milling cutting element as according to any one of claim 1 to 6, it is characterised in that the point of a knife angle of front end, portion, described sword footpath is 100 to 150 degree.
8. the brill milling cutting element as according to any one of claim 1 to 6, it is characterised in that the angle of described first relief angle is 10 to 45 degree, the angle of described second relief angle is 0 to 15 degree.
9. the brill milling cutting element as according to any one of claim 1 to 6, it is characterised in that the diameter of front end, portion, described sword footpath is less than the diameter of rear end, portion, sword footpath, and described sword footpath portion is in along taper.
10. brill milling cutting element as claimed in claim 9, it is characterised in that the tapering in described sword footpath portion is 0.01-0.05.
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 true CN105665804A (en) | 2016-06-15 |
| CN105665804B CN105665804B (en) | 2017-11-14 |
Family
ID=56302904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610075049.2A Active CN105665804B (en) | 2016-02-02 | 2016-02-02 | Bore milling cutting element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105665804B (en) |
Cited By (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 |
| CN108581000A (en) * | 2018-06-12 | 2018-09-28 | 深圳市金洲精工科技股份有限公司 | A kind of milling cutter of processing metal substrate material |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH696631A5 (en) * | 2003-10-01 | 2007-08-31 | Fraisa Sa | Milling tool for machining soft materials. |
| US20080145158A1 (en) * | 2006-12-13 | 2008-06-19 | Ching-Ching Chen | Milling Cutter |
| CN101326026A (en) * | 2006-04-21 | 2008-12-17 | 韩国养志园有限公司 | Sinusoidal angled rotary cutting tool |
| EP2030711A1 (en) * | 2007-08-30 | 2009-03-04 | Fraisa SA | Milling tool for machining soft materials |
| CN101821044A (en) * | 2007-10-17 | 2010-09-01 | 钴碳化钨硬质合金公司 | Rotary tool, in particular drill |
| 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 |
| KR101617632B1 (en) * | 2012-05-04 | 2016-05-18 | 후프슈미드 쩨어슈파눙스시스테메 게엠베하 | milling method for the manufacture of dental prostheses |
-
2016
- 2016-02-02 CN CN201610075049.2A patent/CN105665804B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH696631A5 (en) * | 2003-10-01 | 2007-08-31 | Fraisa Sa | Milling tool for machining soft materials. |
| CN101326026A (en) * | 2006-04-21 | 2008-12-17 | 韩国养志园有限公司 | 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 |
| CN101821044A (en) * | 2007-10-17 | 2010-09-01 | 钴碳化钨硬质合金公司 | Rotary tool, in particular drill |
| KR101617632B1 (en) * | 2012-05-04 | 2016-05-18 | 후프슈미드 쩨어슈파눙스시스테메 게엠베하 | milling method for the manufacture of dental prostheses |
| 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 |
Non-Patent Citations (1)
| Title |
|---|
| 龚雯: "<<加工中心操作工工作手册>>", 31 October 2007, 化学工业出版社 * |
Cited By (4)
| 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 |
| CN108581000A (en) * | 2018-06-12 | 2018-09-28 | 深圳市金洲精工科技股份有限公司 | A kind of milling cutter of processing metal substrate material |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105665804B (en) | 2017-11-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107824855B (en) | Milling cutter with groove width gradual change type chip breaking groove | |
| CN105665804A (en) | Drilling and milling cutting tool | |
| TW201726283A (en) | Drill structure | |
| CN104551162A (en) | End milling cutter | |
| CN103737090B (en) | A kind of fine finishining rotary cutting tool | |
| CN204934687U (en) | Drill bit structure | |
| CN205733181U (en) | Bore milling cutting element | |
| CN204053023U (en) | Drill bit structure | |
| CN207547723U (en) | A kind of milling cutter with groove width gradual change type chip-breaker | |
| CN203599608U (en) | Vertical milling cutter | |
| CN216065722U (en) | Drum-shaped arc milling cutter | |
| CN202219341U (en) | Drill bit with double symmetrical chip separating grooves for printed circuit boards | |
| CN207887940U (en) | A kind of drill bit | |
| CN207205354U (en) | A kind of drill point of high-efficient cutting | |
| JP2006055915A (en) | Small diameter drill for machining printed wiring board | |
| CN207205353U (en) | A kind of high intensity drill point | |
| CN205362790U (en) | Drill structure | |
| CN219112987U (en) | Milling cutter | |
| CN208195758U (en) | A kind of brill milling integral type cutter | |
| CN210587327U (en) | Replaceable drilling blade | |
| CN207026567U (en) | A kind of six face flat-end cutters | |
| CN114800629B (en) | PCB drill point | |
| CN218656969U (en) | Drilling tool | |
| CN217160125U (en) | Drilling and milling integrated cutter | |
| CN116277286A (en) | Micro drill bit and processing technology thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |