CN208408667U - A kind of rotary cutting tool - Google Patents
A kind of rotary cutting tool Download PDFInfo
- Publication number
- CN208408667U CN208408667U CN201820998391.4U CN201820998391U CN208408667U CN 208408667 U CN208408667 U CN 208408667U CN 201820998391 U CN201820998391 U CN 201820998391U CN 208408667 U CN208408667 U CN 208408667U
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- cutting
- cutting portion
- edge
- cutting edge
- rotary
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Abstract
The utility model relates to cutting tool technical fields, more particularly to a kind of rotary cutting tool, including cutting portion, the cutting portion is divide into upper part and lower part, respectively main cutting portion and secondary cutting portion, main cutting portion are connected with secondary cutting portion, and main cutting portion includes multiple along its first circumferentially distributed cutting edge, secondary cutting portion be equipped with it is multiple along its second circumferentially distributed cutting edge, the rotation direction of the first cutting edge is oppositely oriented with the second cutting edge.
Description
Technical field
The utility model relates to cutting tool technical fields, and in particular to a kind of rotary cutting tool.
Background technique
In CNC industry, usually processing cutter for same all is to use dextrorotation cutter, requires to rotate forward when processing, cutting
Power is downward, and it is that upper row cuts that row, which cuts mode, and disadvantage is that cannot obtain best bright finish, and burr turns in processing, is not able to satisfy
Processing request.
There are some demanding, especially some mobile phone keys or the production and processing for all saying appliance panel, precision bloom
Cleanliness requirement is also very high it is necessary to select lower row to cut, this just needs to use left-handed cutter, requires reversion when processing, cuts
It is upward to cut power, avoids the edge of a knife in this way and whitens, phenomena such as workpiece notch spring side.
And in processing carbon fibre material, when material stress, easily along interlaminar failure, this is also interlaminar shear strength to hole
The reason of rdativery sensitive.It in addition is stress concentration region at hole, bearing capacity is weak, and when stressed, expansion of pores forms long crack,
To be destroyed.When processing carbon fibre material, due to the cutting force of existing cutter be it is unidirectional, when processing, will appear
Turned-down edge phenomenon.
Utility model content
The purpose of this utility model is that aiming at the shortcomings in the prior art, and a kind of rotary cutting tool is provided, the rotation
Turning cutting element, to have can be avoided material turned-down edge, cutting-tool's used life longer.
The purpose of this utility model is achieved through the following technical solutions:
A kind of rotary cutting tool, including cutting portion are provided, the cutting portion is divide into upper part and lower part, respectively main cutting
Portion and secondary cutting portion, main cutting portion are connected with secondary cutting portion, and main cutting portion includes multiple along its first circumferentially distributed cutting
Sword, secondary cutting portion are equipped with multiple along its second circumferentially distributed cutting edge, the rotation direction of the first cutting edge and the second cutting edge
It is oppositely oriented.
Wherein, the rotation direction of first cutting edge is dextrorotation.
Wherein, the rotation direction of first cutting edge is left-handed.
Wherein, first cutting edge and or the second cutting edge helical angle be 25 ° to 45 ° between.
Wherein, the front end of the secondary cutting portion is equipped with multiple cutting tooths for machining.
Wherein, the front end of the secondary cutting portion is additionally provided with for by the chip pocket of chip discharge, chip pocket to be arranged adjacent
Cutting tooth between.
Wherein, the cutting tooth is connected with for cutting the resigning portion stepped down, resigning portion be located at cutting tooth and chip pocket it
Between.
The utility model has the beneficial effects that the rotary cutting tool of the utility model, the first cutting edge is dextrorotation, and second cuts
Cut sword be it is left-handed so that the cutting force of secondary cutting portion is upward, the cutting force in main cutting portion is downward, in processing, the two cutting force
It just offsets, so as to avoid material turned-down edge, extends the service life of tool.
Detailed description of the invention
Using attached drawing, the utility model is described in further detail, but the embodiment in attached drawing is not constituted to the utility model
Any restrictions for those of ordinary skill in the art without creative efforts, can also be according to following attached
Figure obtains other attached drawings.
Fig. 1 is the structural schematic diagram of the rotary cutting tool of the utility model.
Include in Fig. 1:
Shank 1, main cutting portion 2, the first helicla flute 20, the first cutting edge 21, secondary cutting portion 3, the second helicla flute 30, second
Cutting edge 31, cutting tooth 4, chip pocket 5, resigning portion 6.
Specific embodiment
The utility model is further described with the following Examples.
The specific embodiment of a kind of rotary cutting tool of the utility model, as shown in Figure 1, rotary cutting tool includes
Shank 1 and cutting portion positioned at 1 end of shank, the diameter of shank 1 and the diameter of cutting portion are identical so that the intensity of cutting portion compared with
By force, cutting portion is divide into upper part and lower part, respectively main cutting portion 2 and secondary cutting portion 3, and main cutting portion 2 and secondary cutting portion 3 connect,
Wherein, main cutting portion 2 includes multiple along its first circumferentially distributed cutting edge 21, the rotation direction of the first cutting edge 21 be it is left-handed or
Person's dextrorotation, in the present embodiment, the rotation direction of the first cutting edge 21 is dextrorotation, the helical angle of the first cutting edge 21 be 25 ° to 45 ° it
Between, the first helicla flute 20 for chip removal is equipped between two the first cutting edges 21, the rotation direction of the first helicla flute 20 is cut with first
The rotation direction for cutting sword 21 is identical, and the first cutting edge 21 is used for machining workpieces, since the first cutting edge 21 is dextrorotation, so that first
Cutting force when rotary cutting is processed of cutting edge 21 is downward.
Secondary cutting portion 3 is connected to the lower section in main cutting portion 2, secondary cutting portion 3 be equipped with it is multiple along its circumferentially distributed second
Cutting edge 31, wherein the rotation direction of the first cutting edge 21 and the second cutting edge 31 it is oppositely oriented, in the present embodiment, the first cutting
The rotation direction of sword 21 is dextrorotation, then the rotation direction of the second cutting edge 31 is left-handed, the helical angle of the second cutting edge 31 be 25 ° to 45 ° it
Between, and the second helicla flute 30 for being used for chip removal, the rotation direction and second of the second helicla flute 30 are equipped between two the second cutting edges 31
The rotation direction of cutting edge 31 is identical, and the second cutting edge 31 is used for machining workpieces, due to the second cutting edge 31 be it is left-handed, then second
Cutting force when rotary cutting is processed of cutting edge 31 is upward.
From the foregoing, it will be observed that the cutting force of secondary cutting portion 3 is upward, the cutting force in main cutting portion 2 is downward, and in processing, the two is cut
It cuts power just to offset, so as to avoid material turned-down edge, extends the service life of tool, the first cutting edge 21 and the second cutting edge 31
Quantity be four.
Cutting portion further includes multiple cutting tooths 4 for processing, and the front end of secondary cutting portion 3 is arranged in cutting tooth 4, for adding
Work workpiece bottom, and cutting tooth 4 is chiefly used in finishing, there are four the settings of cutting tooth 4, is provided with appearance between adjacent cutting tooth 4
Consider slot 5 to be worth doing, chip pocket 5 is for the chip of generation to be smoothly discharged during Milling Process.Cutting tooth 4 is connected with for cutting
The resigning portion 6 that Shi Jinhang steps down, resigning portion 6 positioned at cutting tooth 4 and chip pocket 5 between, and resigning portion 6 and cutting tooth 4 it is integrated at
Type, for reinforcing the intensity of cutting tooth 4.
Finally it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than to this reality
With the limitation of novel protected range, although being explained in detail referring to preferred embodiment to the utility model, this field it is general
Lead to it will be appreciated by the skilled person that can be with the technical solution of the present invention is modified or equivalently replaced, without departing from this
The spirit and scope of utility model technical solution.
Claims (7)
1. a kind of rotary cutting tool, including cutting portion, the cutting portion is divide into upper part and lower part, respectively main cutting portion and pair
Cutting portion, main cutting portion are connected with secondary cutting portion, and main cutting portion includes multiple along its first circumferentially distributed cutting edge, and pair is cut
Portion is cut equipped with multiple along its second circumferentially distributed cutting edge, it is characterised in that: the rotation direction of the first cutting edge and the second cutting
Sword it is oppositely oriented.
2. rotary cutting tool according to claim 1, it is characterised in that: the rotation direction of first cutting edge is dextrorotation.
3. rotary cutting tool according to claim 1, it is characterised in that: the rotation direction of first cutting edge is left-handed.
4. rotary cutting tool according to claim 1-3, it is characterised in that: first cutting edge and or
The helical angle of second cutting edge is between 25 ° to 45 °.
5. rotary cutting tool according to claim 4, it is characterised in that: the front end of the pair cutting portion is equipped with multiple use
In the cutting tooth of machining.
6. rotary cutting tool according to claim 5, it is characterised in that: the front end of the pair cutting portion, which is additionally provided with, to be used for
By the chip pocket of chip discharge, chip pocket is arranged between adjacent cutting tooth.
7. rotary cutting tool according to claim 6, it is characterised in that: the cutting tooth is connected with steps down for cutting
Resigning portion, resigning portion is between cutting tooth and chip pocket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820998391.4U CN208408667U (en) | 2018-06-26 | 2018-06-26 | A kind of rotary cutting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820998391.4U CN208408667U (en) | 2018-06-26 | 2018-06-26 | A kind of rotary cutting tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208408667U true CN208408667U (en) | 2019-01-22 |
Family
ID=65106276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820998391.4U Active CN208408667U (en) | 2018-06-26 | 2018-06-26 | A kind of rotary cutting tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208408667U (en) |
-
2018
- 2018-06-26 CN CN201820998391.4U patent/CN208408667U/en active Active
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