CN209363697U - A kind of double helix blade milling cutter - Google Patents
A kind of double helix blade milling cutter Download PDFInfo
- Publication number
- CN209363697U CN209363697U CN201821514938.5U CN201821514938U CN209363697U CN 209363697 U CN209363697 U CN 209363697U CN 201821514938 U CN201821514938 U CN 201821514938U CN 209363697 U CN209363697 U CN 209363697U
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- sword
- hand cut
- slot
- cut sword
- cutter head
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Abstract
The utility model is suitable for cutter structure technical field, provide a kind of double helix blade milling cutter, cutter head including knife handle and set on described knife handle one end, the cutter head is provided with end sword in one end far from the knife handle, the cutter head is additionally provided with the right-hand cut sword being connected with the end sword, the cutter head is additionally provided with left-hand cut sword, the right-hand cut sword and the left-hand cut sword respectively correspond and are provided with dextrorotation slot and left-handed slot, the left-handed slot and dextrorotation slot intersection setting, the front end of the left-hand cut sword and the end sword are at a distance of setting, and the junction of left-hand cut sword towards the knife handle and the cutter head extends spirally.A kind of double helix blade milling cutter provided by the utility model, batch cutting edge of a knife or a sword that can effectively inhibit cell wall and plate face to be formed by cutting force stretcher strain when processing flat-bottom slot, and also greatly improve cutting-tool's used life.
Description
Technical field
The utility model belongs to cutter structure technical field more particularly to a kind of double helix blade milling cutter.
Background technique
Conventional dextrorotation flat-bottom end mill is being used when processing flat-bottom slot in PCB copper-clad plate, due to tool wear, Wu Fayou
Effect cutting plate surface layers of copper, while under the action of cutting force plate surface layers of copper by upward stretcher strain, thus
So that batch cutting edge of a knife or a sword occur in the cell wall of flat-bottom slot and plate face junction, the appearance of workpiece had both been influenced, it is also necessary to time-consuming and laborious removal batch
Cutting edge of a knife or a sword, high production cost.
Utility model content
The utility model aims to solve at least one of above-mentioned technical problem, provides a kind of double helix blade milling cutter, is adding
Batch cutting edge of a knife or a sword that can effectively inhibit cell wall and plate face to be formed when work flat-bottom slot by cutting force stretcher strain, and also greatly improve knife
The service life of tool.
The technical solution of the utility model is: a kind of double helix blade milling cutter, including knife handle and set on described knife handle one end
Cutter head, the cutter head be provided with end sword in one end far from the knife handle, and the cutter head is additionally provided with to be connected with the end sword
Right-hand cut sword, the cutter head are additionally provided with left-hand cut sword, and the right-hand cut sword and the left-hand cut sword respectively correspond
It is provided with dextrorotation slot and left-handed slot, the left-handed slot and dextrorotation slot intersection setting, the front end of the left-hand cut sword and institute
End sword is stated at a distance of setting, and the junction of left-hand cut sword towards the knife handle and the cutter head extends spirally.
Optionally, the end sword, the right-hand cut sword, the left-hand cut sword, the dextrorotation slot and the left-handed slot
There are two.
Optionally, in the adjacent left-handed slot and the dextrorotation slot, the front end of the left-handed slot and the dextrorotation slot
Intersection, the rear end of the dextrorotation slot intersects with another left-handed slot and stops at joint.
Optionally, the front end of the left-hand cut sword is less than the length of the right-hand cut sword to the distance of the end sword.
Optionally, the 40%-50% of the minimum end sword sword diameter of the length of the right-hand cut sword.
Optionally, after the land of the close left-hand cut sword is provided with a plurality of circumferentially left-handed arrangement along the cutter head
Back.
Optionally, after the land of the close right-hand cut sword is provided with a plurality of arrangement along the cutter head circumferential direction dextrorotation
Back.
Optionally, each back is on the same periphery, and the back is along the depth of the cutter head radial direction
No more than the 25% of the end sword sword diameter.
Optionally, the anterior angle of the left-hand cut sword and the anterior angle of the right-hand cut sword are 5 ° -20 °.
A kind of double helix blade milling cutter provided by the utility model, by the way that left-hand cut sword will be provided with simultaneously on cutter head
With right-hand cut sword, when processing flat-bottom slot, right-hand cut sword is for cutting cell wall, and left-hand cut sword is for processing cell wall and plate
Material surface junction, so that cell wall and plate surface junction be by downward cutting force, since the surface of plate will not be upward
Stress, to inhibit the generation of batch cutting edge of a knife or a sword, and a cutter clamping can be realized the machine-shaping of flat-bottom slot and solve cell wall and plate
Material surface junction leads to the problem of batch cutting edge of a knife or a sword, improves work efficiency, while can effectively avoid the abrasion of milling cutter cutting edge, improves
The service life of milling cutter.
Detailed description of the invention
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 drawings in the following description are merely some embodiments of the present invention,
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 structural schematic diagram of double helix blade milling cutter provided by the embodiment of the utility model；
Fig. 2 is a kind of main view of double helix blade milling cutter provided by the embodiment of the utility model；
Fig. 3 is a kind of left view of double helix blade milling cutter provided by the embodiment of the utility model.
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 will be 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 term " setting ", " connection " shall be understood in a broad sense, for example, it may be directly arranged, install,
Connection, can also be arranged indirectly by component placed in the middle, center configuration, be connected.
If in addition, have in the utility model embodiment " length ", " width ", "upper", "lower", "front", "rear", " left side ",
" right side ", "vertical", "horizontal", etc. the orientation or positional relationships of instructions be to be based on the orientation or positional relationship shown in the drawings or conventional
Placement status or use state, are merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion is signified
Structure, feature, device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
To limit the utility model.In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or two
More than.
Described each particular technique feature and each embodiment in a specific embodiment, in the case of no contradiction,
It can be combined in any appropriate way, such as can be with shape by different particular technique feature/embodiment combinations
At different embodiments, in order to avoid unnecessary repetition, each particular technique feature/embodiment is each in the utility model
No further explanation will be given for the possible combination of kind.
As shown in Figure 1 to Figure 3, a kind of double helix blade milling cutter provided by the embodiment of the utility model, can be used for covering in PCB
Flat-bottom slot is processed on copper sheet, above-mentioned double helix blade milling cutter includes knife handle 1 and plays the knife of shear action set on described 1 one end of knife handle
First 2, the cutter head 2 is provided with the end sword 21 for processing flat groove bottom in one end far from the knife handle 1, and end sword 21 is the right side
Structure is revolved, the cutter head 2 is additionally provided with the right-hand cut sword 22 being connect with end sword 21 for processing flat groove groove wall, i.e. end sword
The front end of the right-hand cut sword 22 of 21 one end far from 2 center of cutter head is connected, and the cutter head 2 is additionally provided with left-hand cut sword 23,
The right-hand cut sword and the left-hand cut sword, which respectively correspond, to be provided with for chip removal dextrorotation slot 24 and left-handed slot 25, the left side
Spin slot 25 and the dextrorotation slot 24 intersection setting, the front end of the left-hand cut sword 23 and the end sword 21 are apart arranged, and institute
The junction for stating left-hand cut sword 23 towards the knife handle 1 and the cutter head 2 extends spirally, left-hand cut sword 23 and right-hand cut
Sword 22 does not have intersection point.When milling cutter carries out cutwork, sword 21 and the normal dextrorotation right cut of right-hand cut sword 22 work is held to mill out flat
Kerve, with flat Slot shaping, left-hand cut sword 23 participates in cutting, left cutting edge dextrorotation left cut processing cell wall and plate surface
Junction, due to cutting force of the left-hand cut sword 23 to plate make it is downward, plate surface will not upward stress, prevent plate table
Upwardly stretcher strain and generate batch cutting edge of a knife or a sword, the machine-shaping of flat-bottom slot is realized by a cutter clamping, and make flat-bottom slot
Precision meets technique requirement, aesthetic in appearance, improves work efficiency.Note: middle heavy line show cutting edge (end sword in Fig. 1 to 3
21, left-hand cut sword 23 and right-hand cut sword 22).
Specifically, as depicted in figs. 1 and 2, the end sword 21, the right-hand cut sword 22, the left-hand cut sword 23, institute
Stating dextrorotation slot 24 and the left-handed slot 25 has two, in the adjacent left-handed slot 25 and dextrorotation slot 24, the left-handed slot
25 front end is intersected with the dextrorotation slot 24, and the rear end (at ending) of this dextrorotation slot 24 and other one left-handed 25 phase of slot
Joint is handed over and stops at, starting point and close front end with cutter head 2 of the joint close to left-handed slot 25, so that right-hand cut
The chip that sword 22 generates is discharged into left-handed slot 25 through dextrorotation slot 24 and is discharged by left-handed slot 25.
Specifically, two left-handed slots 25 relative to cutter head axle center in 180 ° be symmetrical arranged, two dextrorotation slots 24 relative to
The axle center of cutter head is symmetrical arranged in 180 °.
Specifically, as shown in Fig. 2, the distance L2 of the front end of the left-hand cut sword 23 to the end sword 21 be less than it is described
The length L1 of right-hand cut sword 22, i.e., there are overlapping portions for the projection of left-hand cut sword 23 and right-hand cut sword 22 in the axial direction
Point, the cell wall of flat-bottom slot can be enabled to be completely covered by the Cutting trajectory of left-hand cut sword 23 and right-hand cut sword 22 in this way,
To guarantee that milling cutter effectively cuts flat groove groove wall.
Specifically, as shown in Fig. 2, the length L1 of the right-hand cut sword 22 minimum 21 sword diameter D of end sword
40%-50% (in practical application, if the depth of processing is big, the length of right-hand cut sword can also become accordingly longer),
The length L1 of reasonable disposition right-hand cut sword 22 makes flat so that milling cutter, in the course of work, left-hand cut sword 23 can participate in cutting
Cell wall and the smooth nothing in plate surface junction batch cutting edge of a knife or a sword of slot.In the utility model embodiment, the length of the right-hand cut sword 22
L1 is the 50% of the 21 sword diameter D of end sword.
Specifically, as depicted in figs. 1 and 2, it is provided with close to the land of the left-hand cut sword 23 a plurality of along the cutter head 2
The back 26 of circumferential left-handed arrangement is provided with a plurality of along the circumferential dextrorotation of the cutter head 2 close to the land of the right-hand cut sword 22
The back 26 of arrangement is further ensured that milling cutter has enough chip spaces.
Specifically, the section of the back 26 can be in arc-shaped, the structures such as V-shape.
Specifically, each back 26 is on the same periphery, and the back 26 is along 2 radial direction of cutter head
Depth is not more than the 25% of the end sword sword diameter D, and the dinting depth of reasonable disposition back 26 is avoided when being ground back 26, milling
The matrix resection of blade back is excessive, to influence the integral strength of milling cutter.
Specifically, as shown in figure 3, the preceding angle beta of the anterior angle α of the left-hand cut sword 23 and the right-hand cut sword 22 is
5 ° -20 °, the anterior angle α of reasonable disposition left-hand cut sword 23 and the preceding angle beta of right-hand cut sword 22 control left-hand cut sword 23 and the right side
The sharpness of cutting edge 22 is revolved, convenient for cutting.In practical application, before the anterior angle α and right-hand cut sword 22 of left-hand cut sword 23
Angle beta can be identical, alternatively, the anterior angle α of left-hand cut sword 23 and the preceding angle beta of right-hand cut sword 22 can not also be identical.This is practical
In new embodiment, the anterior angle α of left-hand cut sword 23 and the preceding angle beta of right-hand cut sword 22 are 20 °.
Specifically, as shown in Fig. 2, the pitch angle gamma of the helixangleθ of the left-handed slot 25 and the dextrorotation slot 24 be 15 °-
30°.In the utility model embodiment, the helixangleθ of left-handed slot 25 and the pitch angle gamma of dextrorotation slot 24 are 30 °.
A kind of double helix blade milling cutter provided by the utility model embodiment, by the way that a left side will be provided with simultaneously on cutter head 2
Cutting edge 23 and right-hand cut sword 22 are revolved, when processing flat-bottom slot, right-hand cut sword 22 is for cutting cell wall, left-hand cut sword 23
For processing cell wall and plate surface junction, so that cell wall and plate surface junction be by downward cutting force, due to plate
Material surface layer will not upward stress, so as to inhibit the generation of batch cutting edge of a knife or a sword, and only with milling cutter can be solved by clamping one mill it is flat
The problem of slot and removal cell wall and plate surface junction batch cutting edge of a knife or a sword, avoid the worry of tool changing.Which raises working efficiency, while energy
The abrasion for effectively avoiding milling cutter cutting edge, improves the service life of milling cutter.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modification, equivalent replacement or improvement etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (9)
1. a kind of double helix blade milling cutter, the cutter head including knife handle and set on described knife handle one end, which is characterized in that the cutter head exists
One end far from the knife handle is provided with end sword, and the cutter head is additionally provided with the right-hand cut sword being connected with the end sword, described
Cutter head is additionally provided with left-hand cut sword, and the right-hand cut sword and the left-hand cut sword respectively correspond and be provided with dextrorotation slot and a left side
Spin slot, the left-handed slot and dextrorotation slot intersection setting, the front end of the left-hand cut sword and the end sword are apart arranged, and
The junction of left-hand cut sword towards the knife handle and the cutter head extends spirally.
2. a kind of double helix blade milling cutter as described in claim 1, which is characterized in that the end sword, the right-hand cut sword, institute
Stating left-hand cut sword, the dextrorotation slot and the left-handed slot has two.
3. a kind of double helix blade milling cutter as described in claim 1, which is characterized in that on the adjacent left-handed slot and the right side
In spin slot, the front end of the left-handed slot is intersected with the dextrorotation slot, and the rear end of the dextrorotation slot and another left-handed slot
Intersect and stops at joint.
4. a kind of double helix blade milling cutter as described in claim 1, which is characterized in that the front end of the left-hand cut sword is described in
The distance of sword is held to be less than the length of the right-hand cut sword.
5. a kind of double helix blade milling cutter as claimed in claim 4, which is characterized in that the length of the right-hand cut sword is minimum
The 40%-50% of the end sword sword diameter.
6. a kind of double helix blade milling cutter as described in claim 1, which is characterized in that the land close to the left-hand cut sword is set
It is equipped with a plurality of back along the circumferentially left-handed arrangement of the cutter head.
7. a kind of double helix blade milling cutter as described in claim 1, which is characterized in that the land close to the right-hand cut sword is set
It is equipped with a plurality of back along cutter head circumferential direction dextrorotation arrangement.
8. a kind of double helix blade milling cutter as claimed in claims 6 or 7, which is characterized in that each back is in same
On periphery, and the back is not more than the 25% of the end sword sword diameter along the depth of the cutter head radial direction.
9. a kind of double helix blade milling cutter as described in claim 1, which is characterized in that the anterior angle of the left-hand cut sword and described
The anterior angle of right-hand cut sword is 5 ° -20 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821514938.5U CN209363697U (en) | 2018-09-17 | 2018-09-17 | A kind of double helix blade milling cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821514938.5U CN209363697U (en) | 2018-09-17 | 2018-09-17 | A kind of double helix blade milling cutter |
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| Publication Number | Publication Date |
|---|---|
| CN209363697U true CN209363697U (en) | 2019-09-10 |
Family
ID=67811545
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821514938.5U Active CN209363697U (en) | 2018-09-17 | 2018-09-17 | A kind of double helix blade milling cutter |
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| CN (1) | CN209363697U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110587006A (en) * | 2019-09-27 | 2019-12-20 | 广东鼎泰高科精工科技有限公司 | Diamond-shaped right-handed left-handed PCB milling cutter and machining method thereof |
-
2018
- 2018-09-17 CN CN201821514938.5U patent/CN209363697U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110587006A (en) * | 2019-09-27 | 2019-12-20 | 广东鼎泰高科精工科技有限公司 | Diamond-shaped right-handed left-handed PCB milling cutter and machining method thereof |
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