CN202045392U - Milling cutter for dividing printed circuit board - Google Patents
Milling cutter for dividing printed circuit board Download PDFInfo
- Publication number
- CN202045392U CN202045392U CN2011200255572U CN201120025557U CN202045392U CN 202045392 U CN202045392 U CN 202045392U CN 2011200255572 U CN2011200255572 U CN 2011200255572U CN 201120025557 U CN201120025557 U CN 201120025557U CN 202045392 U CN202045392 U CN 202045392U
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- milling cutter
- angle
- cutting edge
- wiring board
- printed wiring
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Abstract
The utility model belongs to the filed of milling cutters and particularly relates to a milling cutter for dividing a printed circuit board. The milling cutter comprises a blade body, wherein a cutting edge is arranged along the edge of the blade body; an installation hole is formed at the center of the blade body; the cutting edge has three surfaces; a side rear angel refers to the angel formed by rear cutter surfaces of two main cutting edges on an end tooth; and angle of the side rear angel of the cutting edge is 2 to 6 degrees. The milling cutter can guarantee higher level in the aspects of milling strength, sharpness and chip removal performance, so that the dividing and cutting efficiency of the printed circuit board can be improved.
Description
Technical field
The utility model belongs to the milling cutter field, is specifically related to a kind of milling cutter of cutting apart printed wiring board that is applicable to.
Background technology
In recent years, continual renovation development along with electronic information field, various electronic products are brought in constant renewal in and are regenerated, and such as LCD TV, commercial mobile phone, digital camera, pocket diary computer etc., more and more present trend highly integrated, diversified, high-intelligentization.The realization of this trend not only relies on the development of electronic devices and components, more depends on the update of printed wiring board.Printed wiring board is divided into two types because of the difference of its application: carry " mother matrix " of semiconductor components and devices and as " support plate " of semiconductor packages.The former manufacturing technology and electric property, reliability and the cost of the complete machine electronic product of being assembled have very big related; The latter's manufacturing technology has very big influence for semi-conductive operation frequency, energy resource consumption, connectivity, reliability and cost.Current, for the requirement of the manufacturing technology of printed wiring board mainly concentrate on densification, high frequencyization, adapt to compound installation, adapt to new function, aspect such as low cost and delivery date are short.Printed wiring board is copper, epoxy resin and glass fabric etc. owing to its handling characteristics main component, is to be difficult to material processed.Printed wiring board must be divided into several unit that connect together mutually and make simultaneously in the batch making process on a sheet material, just can reach in batches fast, reduces cost.And in last processing procedure, need the sheet material of finishing be cut apart, make each unit independent.
Chinese patent CN201455381U discloses a kind of milling cutter, it comprises keyway, endoporus, cutter hub and cutting edge, cutting edge is the cutting edge that three faces that weld together with cutter hub put the first edge on a knife or a pair of scissors, cutting edge is provided with the 15-35 sheet, and be welded on uniformly on the cutter hub periphery at interval, the anterior angle of cutting edge is 14 °-15 °, and relief angle is 10 °-13 °.If the angle of milling cutter is little, in milling process, the intensity of milling cutter head is less, is easy to produce the cutter head phenomenon that " breaks ", influences working (machining) efficiency and production cost; And if be the spiral angle of unconfined this milling cutter of increasing, to improve the service life of cutter head, then in milling process, can on the milling face of sheet material, can produce a component that makes progress, when smear metal is upwards discharged, the tendency that sheet material " is started " is arranged, especially for thin multilayer printed wiring board, the surface flatness of meeting heavy damage machining area, even tear sheet material, and excessive helical angle will inevitably cause its corresponding reduction in chip removal space, also can't satisfy the requirement of high chip removal in the multilayer printed wiring board milling process.Therefore should take all factors into consideration and the material and the relevant parameter of the required milling cutter of appropriate design at the character of the multilayer printed wiring board of required processing, guarantee the intensity and the effect of milling.Though this patent can guarantee to reduce cost on the basis of precision, performance is not good aspect chip removal fast, cutter hub intensity and sharpness, causes the stock-removing efficiency of cutting apart that can't improve printed wiring board sheet material.
Summary of the invention
For this reason, technical problem to be solved in the utility model is that milling cutter of the prior art cuts apart the slower problem of sheet forming.
For solving the problems of the technologies described above, a kind of milling cutter that is used to cut apart printed wiring board described in the utility model, comprise cutter blade, described cutter blade edge is provided with cutting edge, described cutter blade center is provided with installing hole, described cutting edge is three swords, and the angle at the angle, rear flank of described cutting edge is 2 °-6 °, and angle, described rear flank is the angle of the back knife face of two main cutting edges on the end tooth.
As preferably, the relief angle β angle of described cutting edge is 13 °-20 °.
As preferably, described cutting edge is the 20-120 tooth, and the evenly spaced cutter blade that is distributed in is along on the limit.
As further preferred, described cutting edge is 24 teeth.
As preferably, described milling cutter external diameter is 49.99mm-120.01mm, and milling cutter thickness is 2.0mm-2.41mm.
As preferably, described milling cutter diameter of bore is 25mm-40mm.
As preferably, the angle at angle, described rear flank is 5 °.
As preferably, the profile angle γ angle of described milling cutter is 24 °-26 °.
As preferably, the anterior angle θ of described milling cutter is 17 °-20 °.
The advantage that technique scheme of the present utility model has compared to existing technology is: 1) cutting edge is three swords, the angle, rear flank is the angle of the back knife face of two main cutting edges on the end tooth, the angle at the angle, rear flank of cutting edge is 2 °-6 °, this kind design not only can improve the efficient of cutting apart sheet forming, and still possess bigger chip removal space, chip removal and keep enough cutter hub intensity fast when milling to increase the service life, when having avoided that sheet material lifted even damage the danger of sheet material outer surface, can smoothly smear metal be discharged, avoid because of occlusive effects milling progress, the flatness of sheet material finished surface is higher simultaneously, the high chip removal requirement when being applicable to the high-speed cutting in the processing multilayer printed wiring board process; 2) angle with the angle, rear flank is made as 2 °-6 °, can guarantee the crown sharpness in cutting face, improves milling intensity and guarantees that milling face is smooth smooth; 3) the utility model is simple in structure, and is with low cost, and effect is obvious.
Description of drawings
Fig. 1 is the structural representation of the utility model milling cutter.
Reference numeral is expressed as among the figure: 1-cutter blade, 2-cutting edge, 3-installing hole.
The specific embodiment
For the easier quilt of content of the present utility model is clearly understood, according to specific embodiment of the utility model also in conjunction with the accompanying drawings, the utility model is described in further detail below.
Embodiment 1
As shown in Figure 1, the milling cutter that is used to cut apart printed wiring board described in the utility model comprises cutter blade 1, and the circumferential edge of cutter blade 1 is along being provided with cutting edge 2, and the quantity of cutting edge 2 is 20 teeth in the present embodiment, and the evenly spaced cutter blade 1 that is distributed in is along on the limit.Cutter blade 1 center is provided with installing hole 3, and cutting edge 2 is three swords, and the angle at the angle, rear flank of cutting edge 2 is 2 °, the angle of relief angle β is 13 °, and the milling cutter external diameter is 49.99mm, and milling cutter thickness is 2.0mm, the profile angle γ angle of milling cutter is 24 °, and the anterior angle θ of milling cutter is 17 °.Present embodiment is selected carbide alloy disk material for use, improves process route and frock, by vacuum cup workpiece is adsorbed in the course of the work, to guarantee enough absorption affinities being arranged when the grinding, can not produce the be full of cracks that grinding stress prevents cutter blade 1 simultaneously.The cutting tool shape of present embodiment is chip removal and keep enough cutter hub intensity to increase the service life fast when milling.The end face of present embodiment adopts D10 granularity emery wheel fine ginding, makes that end face clamps solid and reliable in use.
Embodiment 2
As shown in Figure 1, the milling cutter that is used to cut apart printed wiring board described in the utility model comprises cutter blade 1, and the circumferential edge of cutter blade 1 is along being provided with cutting edge 2.Differently with embodiment 1 be that the quantity of cutting edge 2 is 24 teeth, and the evenly spaced cutter blade 1 that is distributed in is along on the limit, cutter blade 1 center is provided with installing hole 3, cutting edge 2 is three swords, the angle at the angle, rear flank of cutting edge 2 is 5 °, and the profile angle γ angle of milling cutter is 25 °, and the anterior angle θ of milling cutter is 18 °, the angle of relief angle β is that 14 ° of milling cutter external diameters are 100mm, and milling cutter thickness is 2.40mm.
Embodiment 3
As shown in Figure 1, the milling cutter that is used to cut apart printed wiring board described in the utility model comprises cutter blade 1, and the circumferential edge of cutter blade 1 is along being provided with cutting edge 2.Differently with embodiment 1 be that the quantity of cutting edge 2 is 120 teeth, and the evenly spaced cutter blade 1 that is distributed in is along on the limit, cutter blade 1 center is provided with installing hole 3, cutting edge 2 is three swords, and the angle at the angle, rear flank of cutting edge 2 is 6 °, and the anterior angle θ of milling cutter is 20 °, the angle of relief angle β is 20 °, the profile angle γ angle of milling cutter is 26 °, and the milling cutter external diameter is 120.01mm, and milling cutter thickness is 2.41mm.
Obviously, the foregoing description only is for example clearly is described, and is not the qualification to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all embodiments.And conspicuous variation of being extended out thus or change still are among the protection domain of the utility model creation.
Claims (9)
1. milling cutter that is used to cut apart printed wiring board, comprise cutter blade (1), described cutter blade (1) edge is provided with cutting edge (2), described cutter blade (1) center is provided with installing hole (3), it is characterized in that: described cutting edge (2) is three swords, the angle at the angle, rear flank of described cutting edge (2) is 2 °-6 °, and angle, described rear flank is the angle of the back knife face of two main cutting edges on the end tooth.
2. the milling cutter that is used to cut apart printed wiring board according to claim 1 is characterized in that: the angle of the relief angle β of described cutting edge (2) is 13 °-20 °.
3. the milling cutter that is used to cut apart printed wiring board according to claim 1 is characterized in that: described cutting edge (2) is the 20-120 tooth, and the evenly spaced cutter blade (1) that is distributed in is along on the limit.
4. the milling cutter that is used to cut apart printed wiring board according to claim 3 is characterized in that: described cutting edge (2) is 24 teeth.
5. according to the arbitrary described milling cutter that is used to cut apart printed wiring board of claim 1-4, it is characterized in that: described milling cutter external diameter is 49.99mm-120.01mm, and milling cutter thickness is 2.0mm-2.41mm.
6. the milling cutter that is used to cut apart printed wiring board according to claim 5 is characterized in that: described milling cutter diameter of bore is 25mm-40mm.
7. the milling cutter that is used to cut apart printed wiring board according to claim 1 is characterized in that: the angle at angle, described rear flank is 5 °.
8. the milling cutter that is used to cut apart printed wiring board according to claim 1 is characterized in that: the profile angle γ angle of described milling cutter is 24 °-26 °.
9. the milling cutter that is used to cut apart printed wiring board according to claim 1 is characterized in that: the anterior angle θ of described milling cutter is 17 °-20 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200255572U CN202045392U (en) | 2011-01-26 | 2011-01-26 | Milling cutter for dividing printed circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200255572U CN202045392U (en) | 2011-01-26 | 2011-01-26 | Milling cutter for dividing printed circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202045392U true CN202045392U (en) | 2011-11-23 |
Family
ID=44985716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200255572U Expired - Fee Related CN202045392U (en) | 2011-01-26 | 2011-01-26 | Milling cutter for dividing printed circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202045392U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104117720A (en) * | 2014-07-25 | 2014-10-29 | 恩达电路(深圳)有限公司 | V-pit cutter for cutting aluminum-based circuit board |
| CN104625192A (en) * | 2015-02-15 | 2015-05-20 | 张家港市锐正精密工具有限公司 | Milling cutter with three-sided edges and cutting saw blades |
| CN104889466A (en) * | 2015-06-11 | 2015-09-09 | 山东大学 | Integral full-ceramic super dense-tooth three-edge milling cutter and manufacturing method thereof |
| CN111300497A (en) * | 2020-02-21 | 2020-06-19 | 上海江丰平芯电子科技有限公司 | Method for cutting off retaining ring |
-
2011
- 2011-01-26 CN CN2011200255572U patent/CN202045392U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104117720A (en) * | 2014-07-25 | 2014-10-29 | 恩达电路(深圳)有限公司 | V-pit cutter for cutting aluminum-based circuit board |
| CN104625192A (en) * | 2015-02-15 | 2015-05-20 | 张家港市锐正精密工具有限公司 | Milling cutter with three-sided edges and cutting saw blades |
| CN104889466A (en) * | 2015-06-11 | 2015-09-09 | 山东大学 | Integral full-ceramic super dense-tooth three-edge milling cutter and manufacturing method thereof |
| CN111300497A (en) * | 2020-02-21 | 2020-06-19 | 上海江丰平芯电子科技有限公司 | Method for cutting off retaining ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111123 Termination date: 20180126 |