CN107824855A - A kind of milling cutter with groove width gradual change type chip-breaker - Google Patents
A kind of milling cutter with groove width gradual change type chip-breaker Download PDFInfo
- Publication number
- CN107824855A CN107824855A CN201711022808.XA CN201711022808A CN107824855A CN 107824855 A CN107824855 A CN 107824855A CN 201711022808 A CN201711022808 A CN 201711022808A CN 107824855 A CN107824855 A CN 107824855A
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- China
- Prior art keywords
- breaker
- chip
- cutter
- gradual change
- milling cutter
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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.)
- Granted
Links
- 238000003801 milling Methods 0.000 title claims abstract description 30
- 230000008859 change Effects 0.000 title claims abstract description 25
- 238000005299 abrasion Methods 0.000 abstract description 3
- 239000000428 dust Substances 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/16—Milling-cutters characterised by physical features other than shape
- B23C5/165—Milling-cutters characterised by physical features other than shape with chipbreaking or chipdividing equipment
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Abstract
The present invention is applied to milling cutter technical field, disclose a kind of milling cutter with groove width gradual change type chip-breaker, including cutter body, cutter body includes shank section and is connected to the blade part of the shank section, the blade part has at least two main rotation helicla flutes and at least one chip-breaker, the rotation direction of the chip-breaker is oppositely oriented with the main rotation helicla flute, the width of the chip-breaker reduces from the blade tip direction Ren Gen directions of the blade part, the rotation spiral angular region of the main rotation helicla flute is 20 ° to 45 °, and the rotation spiral angular region of the chip-breaker is 20 ° to 85 °.A kind of milling cutter with groove width gradual change type chip-breaker provided by the present invention, width is gradually small from front to back for its chip-breaker, in the case of the overall chip space of cutter is ensured, lift the dust discharge space of cutter tip emphatically simultaneously, solves cutter tip plug dirt phenomenon, plate edge machined quality is good, and can reduce the abrasion of cutter, beneficial to extension cutting-tool's used life.
Description
Technical field
The invention belongs to milling cutter technical field, more particularly to a kind of milling cutter with groove width gradual change type chip-breaker.
Background technology
With the lightweight of electronic system product, miniaturization, high reliability development trend, it is desirable to produce highly integrated, more
Glass fabric wiring density used in inside printed circuit board (PCB) sheet material of stratification is more and more intensive, so that milling
Difficulty increases, and copper foil chip twines knife and glass fibre chip removal is difficult, PCB is produced the bad situation of chip removal in milling process,
And then cause the bad phenomenons such as short, the processing back plate burr of cutter life.
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 has groove width gradual change type chip-breaker
Milling cutter, its chip removal effect is good, plate edge machined quality is good and cutter life grow.
The technical scheme is that：A kind of milling cutter with groove width gradual change type chip-breaker, including cutter body, milling cutter sheet
Body includes shank section and is connected to the blade part of the shank section, and the blade part is with least two main rotation helicla flutes and at least
One chip-breaker, the rotation direction of the chip-breaker is oppositely oriented with the main rotation helicla flute, and the width of the chip-breaker is described in
The blade tip direction Ren Gen directions of blade part reduce, and the rotation spiral angular region of the main rotation helicla flute is 20 ° to 45 °, the chip breaking
The rotation spiral angular region of groove is 20 ° to 85 °.
Alternatively, the chip-breaker is 0.04 to 0.15mm in the registration of the adjacent cutter tooth of different blades.
Alternatively, the front end tooth of the chip-breaker is wider than the end facewidth 0 to 0.07mm.
Alternatively, the front end tooth of the chip-breaker is wider than the end facewidth 0.03 to 0.05mm.
Alternatively, the main rotation helicla flute is provided with two and is that rotation direction is dextrorotation, the chip-breaker be provided with one and
It is left-handed for rotation direction, the rotation spiral angular region of the main rotation helicla flute is 20 ° to 30 °.
Alternatively, the front end of the blade part is formed by two in the point of a knife of dovetail type, the cutting edge of two points of a knife
Angle is in 120 ° to 160 °.
Alternatively, the relief angle of the point of a knife is 6 ° to 18 °.
Alternatively, the cutting face distance of two points of a knife is 0.05-0.3mm.
Alternatively, the preceding angular region of the blade of the blade part is 4 ° to 15 °
Alternatively, the rear angular region of the blade of the blade part is 8 ° to 30 °.
A kind of milling cutter with groove width gradual change type chip-breaker provided by the present invention, width is gradually from front to back for its chip-breaker
It is small, in the case of the overall chip space of cutter is ensured, while the dust discharge space of lifting cutter tip emphatically, solve cutter tip
Dirt phenomenon is filled in, borings can be forced chip breaking, lift overall chip breaking ability, and the efficient discharge of chip can take away substantial amounts of cutting
Heat, and the abrasion of cutter can be reduced, beneficial to extension cutting-tool's used life, and the design of left-turn spiral angle can be lifted further
Chip breaking ability, plate edge machined quality are good.
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 a kind of front view of milling cutter with groove width gradual change type chip-breaker provided in an embodiment of the present invention；
Fig. 2 is a kind of right view of milling cutter with groove width gradual change type chip-breaker provided in an embodiment of the present invention；
Fig. 3 is a kind of part plan signal of milling cutter with groove width gradual change type chip-breaker provided in an embodiment of the present invention
Figure.
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.
Only it is relative concept each other it should also be noted that, the orientation term such as left and right, upper and lower in the embodiment of the present invention
Or using the normal operating condition of product as reference, and should not be regarded as restrictive.
As shown in Figure 1 to Figure 3, a kind of milling cutter with groove width gradual change type chip-breaker provided in an embodiment of the present invention, including
Cutter body, cutter body includes shank section 1 and is connected to the blade part 2 of the shank section 1, between shank section 1 and blade part 2
Bevel phase 3 can be connected with, bevel phase 3 can be in round table-like.The blade part 2 is with least two main rotation helicla flutes 21 and extremely
A few chip-breaker 22, the rotation direction of the chip-breaker 22 is oppositely oriented with the main rotation helicla flute 21, the chip-breaker 22
Width reduces from the blade tip direction Ren Gen directions of the blade part 2, i.e., (groove width is gradual for gradual change from front to back for the groove width of chip-breaker 22
Diminish).The rotation spiral angular region of the main rotation helicla flute 21 is 20 ° to 45 °, and the rotation spiral angular region of the chip-breaker 22 is
20 ° to 85 °, it is designed with from point of a knife to the not wide chip-breaker 22 in effective cutting edge root, its tip chip breaking on double helix blade
Groove 22 is wider than root, ensures that tip chip space maximumlly ensures cutter hub root integral rigidity and intensity simultaneously, solves and cut
Cut chip breaking and the bad problem of chip removal.And surplus is left in rear knife face when opening chip-breaker 22, it can control by back-off wheel grinding
The relief angle of blade, cutter sharpness is adjusted, can solve edges of boards Burr Problem, and by selecting suitable radius of edge to make cutter
Lifetime.
Alternatively, the chip-breaker 22 the adjacent cutter tooth of different blades registration be 0.04 to 0.15mm, i.e., it is adjacent not
With the chip-breaker 22 on the adjacent cutter tooth of blade in certain coincidence section, chip-breaking performance is more preferably, it can be ensured that drill bit every revolution,
Often circle chip-breaker 22 can at least cut off defective material bits.In concrete application, the registration of the 22 adjacent cutter tooth of chip-breaker can
For 0.06mm to 0.12mm, such as 0.08mm to 0.1mm.
Alternatively, the front end tooth of the chip-breaker 22 is wider than the end facewidth 0 to 0.07mm, in order to better ensure that
Tip chip space maximumlly ensures cutter hub root integral rigidity and intensity simultaneously.In concrete application, the front end of chip-breaker 22
The facewidth is more than the end facewidth 0.03 to 0.05mm, such as 0.04mm.
Alternatively, the front end tooth of the chip-breaker 22 is wider than end facewidth 0.03mm to 0.05mm, in concrete application, breaks
The front end facewidth of bits groove 22 can be more than end facewidth 0.04mm.
In concrete application, the shape of chip-breaker 22 can be set according to actual conditions, and the section of chip-breaker 22 can be in V
Shape, trapezoidal or rectangle etc..
Alternatively, the main rotation helicla flute 21 is provided with two and is that rotation direction is dextrorotation, and the chip-breaker 22 is provided with one
Bar and be that rotation direction is left-handed, employs left-and-right spiral slot structure, and right-hand screw is principal screw, dextrorotation sword number 2；Left-hand screw is by one
Independent helicla flute is formed；With double cutting blade structure features.
Alternatively, it is described it is main rotation helicla flute 21 rotation pitch angle gamma scope be 20 ° to 30 °, preferably 23 ° to 27 °, such as
25 °, the design of right hand helix angle, cutter overall rigidity and intensity are can control, lift the cutting power of cutting edge, increase cutter spiral shell
The chip space of spin slot, reduce the temperature of cutting zone.
Alternatively, the front end of the blade part 2 is formed by two in the point of a knife of dovetail type, the cutting edge of two points of a knife
Angle is in 120 ° to 160 °, such as 130 ° to 150 °, in concrete application, the angle between cutting edge can be in 140 °.
Alternatively, the relief angle of the point of a knife is 4 ° to 28 °, such as 6 ° to 18 °, in concrete application, the relief angle of point of a knife can be
8 ° to 16 °.
Alternatively, the cutting face distance of two points of a knife is 0.05mm-0.3mm, such as 0.1mm-0.2mm.
Alternatively, the anterior angle a scopes of the blade of the blade part 2 are 4 ° to 15 °, such as 5 ° to 12 °, in concrete application,
The anterior angle a of blade can be 6 ° to 10 °, further to improve the overall cutting power of cutter.
Alternatively, the relief angle b scopes of the blade of the blade part 2 are 8 ° to 30 °, such as 10 ° to 22 °, in concrete application,
The relief angle b of blade can be 16 ° to 20 °.It is controllable with reference to chip-breaker 22, the main structure for revolving helicla flute 21, point of a knife, suitable relief angle b
The sharpness of cutting edge processed, lifting processed broken chip effect solve edges of boards Burr Problem, select most suitable radius of edge, make cutter
Lifetime, and after can reducing knife face and machined surface friction, increase chip space, so as to further lift cutter
Life-span.
Alternatively, the surface of blade part 2 can be provided with coating, to improve performance, extend the life-span.
Alternatively, the diameter of blade part 2 can be 0.30 to 3.175mm.
A kind of its processing method with the milling cutter of groove width gradual change type chip-breaker 22 that the embodiment of the present invention is provided can join
Examine as follows：It is ground right spiral (main rotation helicla flute 21), grinding left-hand screw groove (chip-breaker 22), the grinding mill back of the body, milling cutter sharpening.
A kind of milling cutter with groove width gradual change type chip-breaker 22 that the embodiment of the present invention is provided, its chip-breaker 22 is from forward direction
Width is gradually small afterwards, in the case of the overall chip space of cutter is ensured, while the dust discharge space of lifting cutter tip emphatically, solve
Dirt phenomenon is filled in cutter tip, and borings can be forced chip breaking, lift overall chip breaking ability, and the efficient discharge of chip can be taken away greatly
The cutting heat of amount, and the abrasion of cutter can be reduced, and also the design of left-turn spiral angle can further lift chip breaking ability, solve plate
Side quality problems, edges of boards quality are good.
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 (10)
1. a kind of milling cutter with groove width gradual change type chip-breaker, including cutter body, cutter body includes shank section and is connected to
The blade part of the shank section, the blade part have at least two main rotation helicla flutes and at least one chip-breaker, the chip breaking
The rotation direction of groove is oppositely oriented with the main rotation helicla flute, it is characterised in that the width of the chip-breaker is from the blade part
Blade tip direction Ren Gen directions reduce, and the rotation spiral angular region of the main rotation helicla flute is 20 ° to 45 °, the rotation spiral shell of the chip-breaker
Swing angle scope is 20 ° to 85 °.
2. a kind of milling cutter with groove width gradual change type chip-breaker as claimed in claim 1, it is characterised in that the chip-breaker exists
The registration of the adjacent cutter tooth of different blades is 0.04 to 0.15mm.
3. a kind of milling cutter with groove width gradual change type chip-breaker as claimed in claim 1, it is characterised in that the chip-breaker
Front end tooth is wider than the end facewidth 0 to 0.07mm.
4. a kind of milling cutter with groove width gradual change type chip-breaker as claimed in claim 1, it is characterised in that the chip-breaker
Front end tooth is wider than the end facewidth 0.03 to 0.05mm.
A kind of 5. milling cutter with groove width gradual change type chip-breaker as claimed in claim 1, it is characterised in that the main rotation spiral
Groove is provided with two and is that rotation direction is dextrorotation, and the chip-breaker is provided with one and is that rotation direction is left-handed, the main rotation helicla flute
Rotation spiral angular region be 20 ° to 30 °.
6. a kind of milling cutter with groove width gradual change type chip-breaker as claimed in claim 1, it is characterised in that the blade part
Front end is formed by two in the point of a knife of dovetail type, and the cutting edge profile of two points of a knife is in 120 ° to 160 °.
7. a kind of milling cutter with groove width gradual change type chip-breaker as claimed in claim 6, it is characterised in that after the point of a knife
Angle is 6 ° to 18 °.
8. a kind of milling cutter with groove width gradual change type chip-breaker as claimed in claim 6, it is characterised in that two points of a knife
Cutting face distance is 0.05-0.3mm.
9. a kind of milling cutter with groove width gradual change type chip-breaker as claimed in claim 1, it is characterised in that the blade part
The preceding angular region of blade is 4 ° to 15 °
A kind of 10. milling cutter with groove width gradual change type chip-breaker as claimed in claim 1, it is characterised in that the blade part
Blade rear angular region be 8 ° to 30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711022808.XA CN107824855B (en) | 2017-10-27 | 2017-10-27 | Milling cutter with groove width gradual change type chip breaking groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711022808.XA CN107824855B (en) | 2017-10-27 | 2017-10-27 | Milling cutter with groove width gradual change type chip breaking groove |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107824855A true CN107824855A (en) | 2018-03-23 |
| CN107824855B CN107824855B (en) | 2024-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711022808.XA Active CN107824855B (en) | 2017-10-27 | 2017-10-27 | Milling cutter with groove width gradual change type chip breaking groove |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108581001A (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 single-blade milling cutter |
| CN108746794A (en) * | 2018-08-03 | 2018-11-06 | 昂华（上海）自动化工程股份有限公司 | A kind of screw-on cutter |
| CN111390258A (en) * | 2020-04-26 | 2020-07-10 | 深圳市金洲精工科技股份有限公司 | Milling cutter |
| CN111421172A (en) * | 2020-04-21 | 2020-07-17 | 东莞市硕镭电子科技有限公司 | Double-edge spiral milling cutter based on smooth edge treatment of PCB (printed circuit board) |
| CN114700813A (en) * | 2022-03-14 | 2022-07-05 | 金洲精工科技(昆山)有限公司 | Method for quickly positioning tool nose of cylindrical end mill in circumferential direction |
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| CN101085474A (en) * | 2006-06-09 | 2007-12-12 | 弗兰肯有限责任两合公司 | Cutting tool |
| CN201483059U (en) * | 2009-08-18 | 2010-05-26 | 深圳市金洲精工科技股份有限公司 | Milling cutter for shaping and processing circuit board and special grinding wheel thereof |
| CN201922096U (en) * | 2011-01-27 | 2011-08-10 | 浙江瑞亨精密工具有限公司 | Hard alloy milling cutter for chip-breaking groove |
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| CN207547723U (en) * | 2017-10-27 | 2018-06-29 | 深圳市金洲精工科技股份有限公司 | A kind of milling cutter with groove width gradual change type chip-breaker |
-
2017
- 2017-10-27 CN CN201711022808.XA patent/CN107824855B/en active Active
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| JPH09103909A (en) * | 1996-08-02 | 1997-04-22 | Mitsubishi Materials Corp | Throw-away chip for rotary cutting tool |
| CN101085474A (en) * | 2006-06-09 | 2007-12-12 | 弗兰肯有限责任两合公司 | Cutting tool |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108581001A (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 single-blade milling cutter |
| CN108581001B (en) * | 2018-06-12 | 2024-01-30 | 深圳市金洲精工科技股份有限公司 | Single-edge milling cutter |
| CN108746794A (en) * | 2018-08-03 | 2018-11-06 | 昂华（上海）自动化工程股份有限公司 | A kind of screw-on cutter |
| CN111421172A (en) * | 2020-04-21 | 2020-07-17 | 东莞市硕镭电子科技有限公司 | Double-edge spiral milling cutter based on smooth edge treatment of PCB (printed circuit board) |
| CN111390258A (en) * | 2020-04-26 | 2020-07-10 | 深圳市金洲精工科技股份有限公司 | Milling cutter |
| CN114700813A (en) * | 2022-03-14 | 2022-07-05 | 金洲精工科技(昆山)有限公司 | Method for quickly positioning tool nose of cylindrical end mill in circumferential direction |
| CN114700813B (en) * | 2022-03-14 | 2024-04-12 | 金洲精工科技(昆山)有限公司 | Method for quickly positioning circumferential direction of tool nose of cylindrical end mill |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107824855B (en) | 2024-01-30 |
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