CN202045399U - Straight groove milling cutter with chip breaker groove - Google Patents
Straight groove milling cutter with chip breaker groove Download PDFInfo
- Publication number
- CN202045399U CN202045399U CN2011200276916U CN201120027691U CN202045399U CN 202045399 U CN202045399 U CN 202045399U CN 2011200276916 U CN2011200276916 U CN 2011200276916U CN 201120027691 U CN201120027691 U CN 201120027691U CN 202045399 U CN202045399 U CN 202045399U
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- Prior art keywords
- milling
- breaker
- straight trough
- milling cutter
- cutter
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Abstract
The utility model belongs to the field of milling cutters, and particularly relates to a straight groove milling cutter for machining of multilayer printed circuit boards. The milling cutter comprises a cutter holder, wherein one end of the cutter holder extends to form a milling head; the cutter holder and the milling head are in transition through a cone; the tail end of the milling head is provided with a milling face on which an end tooth is formed; and the surface of the milling head is provided with a straight groove along the axis direction of the milling head, and two side edges of the straight groove form milling edges. The milling cutter of the utility model is applicable to machining of flexible circuit boards, and has a large chip receiving space.
Description
Technical field
The utility model belongs to the milling cutter field, is specifically related to a kind of milling cutter that is used for the straight trough band chip-breaker of multilayer printed wiring board processing.
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 because its handling characteristics main component is a copper, epoxy resin and glass fabric etc., be and be difficult to material processed, and along with the continuous development of electronics industry is upgraded, there has been growing field to bring into use volume less, the increasing multilayer circuit board of the compound number of plies, thereby in the process of printed wiring board processing cutting, performance parameter to employed cutter requires high, should satisfy the soft metal material machining of copper for example, satisfy again being rich in the cutting of hard non-metallic materials such as glass fibre and resinoid bond, also require the smooth no burr of finished surface, the processing life-span of cutter is long simultaneously, characteristics such as especially chip removal performance is good.Therefore, prepare at it for the milling cutter tool that is applicable to the multilayer printed wiring board milling and all to have proposed high requirement aspect material, the milling parameter, and at the material of the different required milling cutters of preparation, its various performance parameters is otherwise designed thereupon also, in the hope of reaching best milling effect.Milling cutter construction of the prior art and performance have not been suitable for the Milling Process of multilayer printed wiring board.
Chinese patent CN201324865Y discloses a kind of milling cutter, this milling cutter comprises handle of a knife, one end of handle of a knife extends into milling head, and the surface of milling head is provided with two groups around the identical helical groove formation milling edge of direction, and the end of milling head is provided with two and forms the cutting face that angles are " v " mouth.This milling cutter is fit to the processing of metal substrate, has the advantage of long service life.But in use still there is following defective in this milling cutter: the first, this milling cutter is owing to adopt the groove of spiral to form milling edge, in milling process, 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 lifted be arranged.Especially the machining area of surface flatness can destroy to(for) thin sheet material or flexible sheet can be torn sheet material when serious, so this milling cutter construction and be not suitable for the processing of flexible sheet.The second, this milling cutter adopts two around the identical cutting edge of direction, can not guarantee enough chip removal spaces.
The utility model content
For this reason, technical problem to be solved in the utility model is, overcomes the problem that milling cutter of the prior art is not suitable for the flexible sheet milling, and then a kind of milling cutter that is applicable to flexible printed circuit board processing is provided.
Another technical problem to be solved in the utility model is, overcomes milling cutter of the prior art and holds the indifferent problem of bits, and then a kind of strong milling cutter of bits ability that holds is provided.
For solving the problems of the technologies described above, the utility model provides a kind of cutter with staight grooves that are used to process printed wiring board.
The cutter with staight grooves that are used to process printed wiring board of the present utility model, comprise handle of a knife, one end of described handle of a knife extends into milling head, described milling cutter head end forms milling face, form end tooth on the described milling face, wherein, the surface of described milling head forms straight trough along its axis direction, and two sides of described straight trough form milling edge.
The cutter with staight grooves that are used to process printed wiring board of the present utility model, described straight trough are three, and are equally spaced.
The cutter with staight grooves that are used to process printed wiring board of the present utility model form a plurality of and the perpendicular chip-breaker of its axis on the described straight trough.
The cutter with staight grooves that are used to process multilayer printed wiring board of the present utility model, described chip area are U-lag.
The cutter with staight grooves that are used to process multilayer printed wiring board of the present utility model, described U-lag are flat.
The cutter with staight grooves that are used to process multilayer printed wiring board of the present utility model, described chip-breaker are that the groove depth of U-lag is the 10%-15% in sword footpath.
The cutter with staight grooves that are used to process multilayer printed wiring board of the present utility model, described milling face is a F shape.
The cutter with staight grooves that are used to process multilayer printed wiring board of the present utility model, described milling face is a S shape.
The advantage that technique scheme of the present utility model has compared to existing technology is:
What milling cutter described in the utility model adopted is that helical angle is the cutter with staight grooves of zero degree, is therefore milling
Cut in the process and can not produce bigger upwards component, be not easy to lift sheet material, be particularly useful for the processing of flexible sheet, effectively solved the defective that screw-on cutter of the prior art is not suitable for flexible sheet processing sheet material; Simultaneously, this milling cutter has adopted three straight trough formation milling edges that helical angle is a zero degree, has increased chip space; In addition, form a plurality of on the milling cutter straight trough described in the utility model and the perpendicular chip-breaker of its axis, this chip-breaker has formed tiny cutting teeth, the cutting milling is considered to be worth doing easily, the resistance of cutting helps cutting and chip removal, adopts the chip-breaker of flat U-shaped further to increase chip space, guaranteed bigger chip space on the one hand, thereby the chip-breaker of U-shaped can guarantee that milling cutter has thick the making of bigger core and is not prone to breaking phenomenon in the process on the other hand.
Description of drawings
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, wherein below
Fig. 1 is the structural representation of milling cutter described in the utility model;
Fig. 2-the 1st, the enlarged diagram of F type milling face;
Fig. 2-the 2nd, the enlarged diagram of S type milling face;
Fig. 3 is the schematic diagram of the groove depth of chip-breaker;
Fig. 4 is the enlarged diagram of end tooth.
Reference numeral is expressed as among the figure: 1-handle of a knife, 2-milling head, 3-milling face, 4-straight trough, 5-chip-breaker, the 6-conical surface, 7-end tooth, 11-groove depth.
The specific embodiment
The cutter with staight grooves (see figure 1) that is used to process printed wiring board of the present utility model, comprise handle of a knife 1, one end of described handle of a knife 1 extends into milling head 2, described handle of a knife 1 and described milling head 2 are by cone 6 transition, described milling head 2 ends form milling face 3, form end tooth 7(on the described milling face 3 and see Fig. 4), the surface of described milling head 2 forms three straight troughs that are equally spaced 4 along its axis direction, the groove depth 11(of described straight trough 4 sees Fig. 3) be the 10%-15% in sword footpath, two sides of described straight trough 4 form milling edge, form a plurality of on the described straight trough 4 and the perpendicular chip-breaker 5 of its axis, chip-breaker of the present utility model is preferably the flat-bottom slot of U-shaped, described milling face 3 can be selected F shape (seeing Fig. 2-1) or S shape (seeing Fig. 2-2) as required, wherein form the end tooth of fishtail on the F type milling face, can be used to milling chip area and profile thereof, the drilling ability is arranged; There is not end tooth on the S shape milling face, no drilling ability.
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 (10)
1. straight trough band chip-breaker milling cutter, comprise handle of a knife (1), one end of described handle of a knife (1) extends into milling head (2), described handle of a knife (1) and described milling head (2) are by a cone (6) transition, described milling head (2) end forms milling face (3), end tooth (7) is arranged on the described milling face (3), it is characterized in that: the surface of described milling head (2) forms straight trough (4) along its axis direction, and two sides of described straight trough (4) form milling edge.
2. straight trough band chip-breaker milling cutter according to claim 1, it is characterized in that: described straight trough (4) is three, and is equally spaced.
3. straight trough band chip-breaker milling cutter according to claim 1 and 2 is characterized in that: form a plurality of on the described straight trough (4) and the perpendicular chip-breaker (5) of its axis.
4. straight trough band chip-breaker milling cutter according to claim 3 is characterized in that: described chip-breaker (5) is a U-lag.
5. straight trough band chip-breaker milling cutter according to claim 4, it is characterized in that: described U-lag is flat.
6. straight trough band chip-breaker milling cutter according to claim 4 is characterized in that: the groove depth of described U-lag (11) is 10%-15% of sword footpath.
7. straight trough band chip-breaker milling cutter according to claim 1 and 2 is characterized in that: described milling face (3) is a F shape.
8. straight trough band chip-breaker milling cutter according to claim 1 and 2 is characterized in that: described milling face (3) is a S shape.
9. straight trough band chip-breaker milling cutter according to claim 3 is characterized in that: described milling face (3) is a F shape.
10. straight trough band chip-breaker milling cutter according to claim 3 is characterized in that: described milling face (3) is a S shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200276916U CN202045399U (en) | 2011-01-27 | 2011-01-27 | Straight groove milling cutter with chip breaker groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200276916U CN202045399U (en) | 2011-01-27 | 2011-01-27 | Straight groove milling cutter with chip breaker groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202045399U true CN202045399U (en) | 2011-11-23 |
Family
ID=44985723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200276916U Expired - Fee Related CN202045399U (en) | 2011-01-27 | 2011-01-27 | Straight groove milling cutter with chip breaker groove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202045399U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104191014A (en) * | 2014-08-01 | 2014-12-10 | 常州西利合金工具有限公司 | End mill |
-
2011
- 2011-01-27 CN CN2011200276916U patent/CN202045399U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104191014A (en) * | 2014-08-01 | 2014-12-10 | 常州西利合金工具有限公司 | End mill |
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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 |
Granted publication date: 20111123 Termination date: 20180127 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |