CN208450683U - Special-shaped hole bur removes left-hand circular polarization - Google Patents
Special-shaped hole bur removes left-hand circular polarization Download PDFInfo
- Publication number
- CN208450683U CN208450683U CN201820969048.7U CN201820969048U CN208450683U CN 208450683 U CN208450683 U CN 208450683U CN 201820969048 U CN201820969048 U CN 201820969048U CN 208450683 U CN208450683 U CN 208450683U
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- China
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- cutter hub
- handle
- circular polarization
- helicla flute
- hand circular
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Abstract
The utility model discloses a kind of special-shaped hole burs to remove left-hand circular polarization, cutter hub including handle and set on handle one end, cutter hub forms point of a knife far from an end face of handle, the cutter hub is equipped with left-handed helicla flute close to handle one end to the point of a knife from it, the helicla flute is that 20 °~35 ° of groove is formed, and is not provided with blade between the edge of the helicla flute and the ditch back of cutter hub.The abnormity hole bur removes left-hand circular polarization and passes through setting left hand helix slot, blade is not provided with to fluting, so that the burr on irregularly-shaped hole is thoroughly removed under the action of left-hand circular polarization, it can guarantee the high rigidity of milling cutter again simultaneously, it is less prone to broken needle phenomenon, and 20 °~35 ° of helicla flute groove, guarantee the normal chip removal of dust.
Description
Technical field
The utility model relates to a kind of left-hand circular polarizations more particularly to a kind of special-shaped hole bur to remove left-hand circular polarization.
Background technique
With the innovation of pcb board material, there are many irregularly-shaped holes (in plate in processing PCB forming process in many producers
Milling cutter cutting is carried out after upper drilling again), irregularly-shaped hole, due to stress problem, causes hole edge centainly to will appear in milling cutter process
Burr phenomena can not handle for this burr phenomena plain cutter, can only manually remove, cause the increase of cost of labor
And plate can be damaged and plate is caused to scrap.
Summary of the invention
In order to overcome drawbacks described above, the utility model provides a kind of special-shaped hole bur removal left-hand circular polarization, can will be different
The burr in shape hole removes.
The utility model is to solve technical solution used by its technical problem: a kind of abnormity hole bur removal is left-handed
Milling cutter, the cutter hub including handle and set on handle one end, cutter hub form point of a knife far from an end face of handle, and the cutter hub is leaned on from it
Nearly handle one end to the point of a knife is equipped with left-handed helicla flute, which is that 20 °~35 ° of groove is formed, the helicla flute
Blade is not provided between the ditch of edge and cutter hub back.
As a further improvement of the utility model, the diameter of the cutter hub be 0.6~3.175mm, the handle it is straight
Diameter is 3.0~6.0mm.
The helicla flute is 5~6 as a further improvement of the utility model, and is uniformly arranged on the cutter hub.
The beneficial effects of the utility model are: abnormity hole bur removal left-hand circular polarization passes through setting left hand helix slot, until
Fluting is not provided with blade, so that the burr on irregularly-shaped hole is thoroughly removed under the action of left-hand circular polarization, while can guarantee milling again
The high rigidity of knife is less prone to the helicla flute groove of broken needle phenomenon and 20 °~35 °, guarantees the normal chip removal of dust.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is point of a knife structural schematic diagram described in the utility model.
In conjunction with attached drawing, make the following instructions:
1 --- handle；2 --- cutter hub；
3 --- point of a knife；4 --- helicla flute；
5 --- ditch back.
Specific embodiment
Below in conjunction with attached drawing, elaborate to a preferred embodiment of the utility model.But the guarantor of the utility model
Shield range is not limited to following embodiments, i.e., in every case with simple made by present utility model application the scope of the patents and description
Equivalent changes and modifications all still belong within the utility model patent covering scope.
Refering to fig. 1-2, left-hand circular polarization is removed for a kind of special-shaped hole bur described in the utility model, including handle 1 and set
Cutter hub 2 in 1 one end of handle, cutter hub 2 form point of a knife 3 far from an end face of handle 1, and the cutter hub is from it close to 1 one end of handle
It is equipped with left-handed helicla flute 4 to the point of a knife, which is that 20 °~35 ° of groove is formed, the edge and knife of the helicla flute 4
Blade is not provided between the ditch back 5 of body.
Wherein, the diameter of the cutter hub is 0.6~3.175mm, and the diameter of the handle is 3.0~6.0mm；The spiral
Slot is 5~6, and is uniformly arranged on the cutter hub.
The abnormity hole bur removes left-hand circular polarization and uses left-handed design helicla flute, and only opens helicla flute, is not provided with blade,
The left-hand circular polarization is used after special-shaped hole drilling, due to left-handed so that chip removal direction is downward, the burr on irregularly-shaped hole is by helicla flute
It in edge pressure manhole and removes, thus the burr on thorough cleaning abnormity bore edges.It only opens helicla flute and is not provided with blade, effectively protect
The high rigidity for demonstrate,proving milling cutter, is not in broken needle phenomenon.20 °~35 ° of helicla flute groove guarantees the normal chip removal of dust.
It can be seen that abnormity hole bur removal left-hand circular polarization passes through setting left hand helix slot, until fluting is not provided with blade,
It so that the burr on irregularly-shaped hole is thoroughly removed under the action of left-hand circular polarization, while can guarantee the high rigidity of milling cutter again, be not easy
There is broken needle phenomenon and 20 °~35 ° of helicla flute groove, guarantees the normal chip removal of dust.
Claims (3)
1. a kind of abnormity hole bur removes left-hand circular polarization, including handle (1) and set on the cutter hub (2) of handle (1) one end, cutter hub
(2) end face far from handle (1) forms point of a knife (3), it is characterised in that: the cutter hub is from it close to handle (1) one end to institute
Point of a knife is stated equipped with left-handed helicla flute (4), which is that 20 °~35 ° of groove is formed, the edge of the helicla flute (4) and
Blade is not provided between the ditch back (5) of cutter hub.
2. abnormity hole bur according to claim 1 removes left-hand circular polarization, it is characterised in that: the diameter of the cutter hub is
0.6~3.175mm, the diameter of the handle are 3.0~6.0mm.
3. abnormity hole bur according to claim 1 removes left-hand circular polarization, it is characterised in that: the helicla flute is 5~6
Item, and be uniformly arranged on the cutter hub.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820969048.7U CN208450683U (en) | 2018-06-22 | 2018-06-22 | Special-shaped hole bur removes left-hand circular polarization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820969048.7U CN208450683U (en) | 2018-06-22 | 2018-06-22 | Special-shaped hole bur removes left-hand circular polarization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208450683U true CN208450683U (en) | 2019-02-01 |
Family
ID=65168903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820969048.7U Active CN208450683U (en) | 2018-06-22 | 2018-06-22 | Special-shaped hole bur removes left-hand circular polarization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208450683U (en) |
-
2018
- 2018-06-22 CN CN201820969048.7U patent/CN208450683U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.88, Shuangma Road, Ouxi Industrial Park, Dianshanhu Town, Kunshan City, Suzhou City, Jiangsu Province Patentee after: Jinzhou Jinggong Technology (Kunshan) Co.,Ltd. Address before: No.88, Shuangma Road, Ouxi Industrial Park, Dianshanhu Town, Kunshan City, Suzhou City, Jiangsu Province Patentee before: HUAWEINA PRECISION TOOLS (KUNSHAN) Co.,Ltd. |