CN207547723U - 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
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- CN207547723U CN207547723U CN201721402754.5U CN201721402754U CN207547723U CN 207547723 U CN207547723 U CN 207547723U CN 201721402754 U CN201721402754 U CN 201721402754U CN 207547723 U CN207547723 U CN 207547723U
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- breaker
- chip
- gradual change
- cutter
- groove width
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Abstract
The utility model is suitable for 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, ranging from 20 ° to 45 ° of the rotation helical angle of the main rotation helicla flute, ranging from 20 ° to 85 ° of the rotation helical angle of the chip-breaker.A kind of milling cutter with groove width gradual change type chip-breaker provided by the utility model, width is gradually small from front to back for its chip-breaker, in the chip space for ensureing cutter entirety, promote the dust discharge space of cutter tip emphatically simultaneously, solve cutter tip plug dirt phenomenon, plate edge machined quality is good, and can reduce the abrasion of cutter, conducive to cutting-tool's used life is extended.
Description
Technical field
The utility model 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 that production it is highly integrated, more
Glass fabric wiring density used in inside printed circuit board (PCB) plank 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, and PCB is made to generate the undesirable situation of chip removal in milling process,
And then lead to the bad phenomenons such as short, the processing back plate burr of cutter life.
Utility model content
The purpose of the utility model is to overcome above-mentioned the deficiencies in the prior art, and providing one kind, there is groove width gradual change type to break
Consider the milling cutter of slot to be worth doing, chip removal effect is good, plate edge machined is high-quality and cutter life is long.
The technical solution of the utility model is：A kind of milling cutter with groove width gradual change type chip-breaker, including cutter body, milling
Knife ontology 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 rotation direction of the chip-breaker is oppositely oriented with the main rotation helicla flute, and the width of the chip-breaker is certainly
The blade tip direction Ren Gen directions of the blade part reduce, ranging from 20 ° to 45 ° of the rotation helical angle of the main rotation helicla flute, described
Ranging from 20 ° to 85 ° of the rotation helical angle of chip-breaker.
Optionally, the chip-breaker is 0.04 to 0.15mm in the registration of the adjacent cutter tooth of different blades.
Optionally, the front end tooth of the chip-breaker is wider than the end facewidth 0 to 0.07mm.
Optionally, the front end tooth of the chip-breaker is wider than the end facewidth 0.03 to 0.05mm.
Optionally, the main rotation helicla flute is provided with two and be rotation direction is dextrorotation, the chip-breaker be provided with one and
It is left-handed, ranging from 20 ° to 30 ° of the rotation helical angle of the main rotation helicla flute for rotation direction.
Optionally, 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 °.
Optionally, the relief angle of the point of a knife is 6 ° to 18 °.
Optionally, the cutting face distance of two points of a knife is 0.05-0.3mm.
Optionally, ranging from 4 ° to 15 ° of the anterior angle of the blade of the blade part
Optionally, ranging from 8 ° to 30 ° of the relief angle of the blade of the blade part.
A kind of milling cutter with groove width gradual change type chip-breaker provided by the utility model, chip-breaker width from front to back
It is gradually small, in the chip space for ensureing cutter entirety, while the dust discharge space of cutter tip is promoted emphatically, solve cutter point
Dirt phenomenon is filled in portion, and borings can be forced chip breaking, promotes whole chip breaking ability, the efficient discharge of chip, which can be taken away, largely cuts
Heat is cut, and the abrasion of cutter can be reduced, conducive to cutting-tool's used life is extended, and the design of left-turn spiral angle can be carried further
Chip breaking ability is risen, plate edge machined quality is good.
Description of the drawings
In order to illustrate more clearly of the technical scheme in the embodiment of the utility model, will make below to required in embodiment
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the utility model,
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
Other attached drawings.
Fig. 1 is a kind of front view for milling cutter with groove width gradual change type chip-breaker that the utility model embodiment provides；
Fig. 2 is a kind of right view for milling cutter with groove width gradual change type chip-breaker that the utility model embodiment provides；
Fig. 3 is that a kind of part plan for milling cutter with groove width gradual change type chip-breaker that the utility model embodiment provides shows
It is intended to.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention is further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
It should be noted that when element is referred to as " being fixed on " or " being set to " 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 each other relatively it should also be noted that, the orientation term such as left and right, upper and lower in the utility model embodiment
Concept 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 that the utility model embodiment provides,
Including cutter body, cutter body includes shank section 1 and is connected to the blade part 2 of the shank section 1, shank section 1 and blade part 2
Between can be connected with bevel phase 3, bevel phase 3 can be in round table-like.The blade part 2 has at least two main rotation helicla flutes 21
With at least one chip-breaker 22, the rotation direction of the chip-breaker 22 and oppositely oriented, the chip-breaker of the main rotation helicla flute 21
22 width reduces from the blade tip direction Ren Gen directions of the blade part 2, i.e. the groove width of chip-breaker 22 gradual change (groove width from front to back
It tapers into).Ranging from 20 ° to 45 ° of the rotation helical angle of the main rotation helicla flute 21, the rotation spiral angular region of the chip-breaker 22
It is 20 ° to 85 °, is designed on double helix blade from point of a knife to the not wide chip-breaker 22 in effective cutting edge root, tip is broken
It is wider than root to consider slot 22 to be worth doing, ensures that tip chip space maximumlly ensures cutter hub root integral rigidity and intensity simultaneously, solves
Cut chip breaking and the undesirable problem of chip removal.And in rear knife face, there are surpluses when opening chip-breaker 22, it is controllable by back-off wheel grinding
The relief angle of blade processed adjusts cutter sharpness, can solve edges of boards Burr Problem and by the way that suitable radius of edge is selected to make knife
Has lifetime.
Optionally, the chip-breaker 22 in the registration of the adjacent cutter tooth of different blades for 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.
Optionally, 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.
Optionally, 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 slot 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..
Optionally, it is dextrorotation that the main rotation helicla flute 21, which is provided with two and is rotation direction, and the chip-breaker 22 is provided with one
Item and be rotation direction be 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；There are double cutting blade structures.
Optionally, ranging from 20 ° to 30 ° of the rotation pitch angle gamma of the main rotation helicla flute 21, preferably 23 ° to 27 °, such as
25 °, the design of right hand helix angle can control the rigidity and intensity of cutter entirety, promote the cutting power of cutting edge, increases cutter spiral shell
The chip space of spin slot reduces the temperature of cutting zone.
Optionally, 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 °.
Optionally, 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 °.
Optionally, the cutting face distance of two points of a knife is 0.05mm-0.3mm, such as 0.1mm-0.2mm.
Optionally, ranging from 4 ° to 15 ° of the anterior angle a of the blade of the blade part 2, such as 5 ° to 12 °, in concrete application,
The anterior angle a of blade can be 6 ° to 10 °, to further improve the whole cutting power of cutter.
Optionally, ranging from 8 ° to 30 ° of the relief angle b of the blade of the blade part 2, such as 10 ° to 22 °, in concrete application,
The relief angle b of blade can be 16 ° to 20 °.With reference to chip-breaker 22, the main structure for revolving helicla flute 21, point of a knife, suitable relief angle b is controllable
The sharpness of cutting edge processed promotes processed broken chip effect and solves edges of boards Burr Problem, selects 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 promote cutter
Service life.
Optionally, the surface of blade part 2 can be provided with coating, to improve performance, extend the service life.
Optionally, the diameter of blade part 2 can be 0.30 to 3.175mm.
What the utility model embodiment was provided a kind of has the milling cutter of groove width gradual change type chip-breaker 22 its processing method can
With with reference to as follows：It is ground right spiral (main rotation helicla flute 21), grinding left-hand screw slot (chip-breaker 22), the grinding mill back of the body, milling cutter mill
Point.
A kind of milling cutter with groove width gradual change type chip-breaker 22 that the utility model embodiment is provided, chip-breaker 22 from
Width is gradually small after forward direction, in the chip space for ensureing cutter entirety, while promotes the dust discharge space of cutter tip emphatically,
Cutter tip plug dirt phenomenon is solved, borings can be forced chip breaking, promote whole chip breaking ability, the efficient discharge energy band of chip
A large amount of cutting heat is walked, and the abrasion of cutter can be reduced, and the design of left-turn spiral angle can further promote chip breaking ability, solve
Certainly edges of boards quality problems, edges of boards quality are good.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Any modification, equivalent replacement or improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
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 slot is oppositely oriented with the main rotation helicla flute, which is characterized in that the width of the chip-breaker is from the blade part
Blade tip direction Ren Gen directions reduce, ranging from 20 ° to 45 ° of the rotation helical angle of the main rotation helicla flute, the rotation spiral shell of the chip-breaker
Ranging from 20 ° to 85 ° of swing angle.
2. a kind of milling cutter with groove width gradual change type chip-breaker as described in claim 1, which is characterized 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 described in claim 1, which is characterized 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 described in claim 1, which is characterized 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 described in claim 1, which is characterized in that the main rotation spiral
It is dextrorotation that slot, which is provided with two and is rotation direction, and it is left-handed, the main rotation helicla flute that the chip-breaker, which is provided with one and is rotation direction,
Ranging from 20 ° to 30 ° of rotation helical angle.
6. a kind of milling cutter with groove width gradual change type chip-breaker as described in claim 1, which is characterized 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, which is characterized 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, which is characterized 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 described in claim 1, which is characterized in that the blade part
Ranging from 4 ° to 15 ° of the anterior angle of blade.
A kind of 10. milling cutter with groove width gradual change type chip-breaker as described in claim 1, which is characterized in that the blade part
Blade ranging from 8 ° to 30 ° of relief angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721402754.5U CN207547723U (en) | 2017-10-27 | 2017-10-27 | A kind of milling cutter with groove width gradual change type chip-breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721402754.5U CN207547723U (en) | 2017-10-27 | 2017-10-27 | A kind of milling cutter with groove width gradual change type chip-breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207547723U true CN207547723U (en) | 2018-06-29 |
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ID=62674845
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721402754.5U Active CN207547723U (en) | 2017-10-27 | 2017-10-27 | A kind of milling cutter with groove width gradual change type chip-breaker |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107824855A (en) * | 2017-10-27 | 2018-03-23 | 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 |
| CN111992788A (en) * | 2020-07-06 | 2020-11-27 | 东方电气集团东方汽轮机有限公司 | Semi-finish milling cutter for turbine rotor wheel groove and machining method thereof |
-
2017
- 2017-10-27 CN CN201721402754.5U patent/CN207547723U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107824855A (en) * | 2017-10-27 | 2018-03-23 | 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 |
| CN107824855B (en) * | 2017-10-27 | 2024-01-30 | 深圳市金洲精工科技股份有限公司 | Milling cutter with groove width gradual change type chip breaking groove |
| CN111992788A (en) * | 2020-07-06 | 2020-11-27 | 东方电气集团东方汽轮机有限公司 | Semi-finish milling cutter for turbine rotor wheel groove and machining method thereof |
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