CN204504306U - Ultra-small diameter PCB slotted eye processing and forming drill point - Google Patents
Ultra-small diameter PCB slotted eye processing and forming drill point Download PDFInfo
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- CN204504306U CN204504306U CN201520145001.5U CN201520145001U CN204504306U CN 204504306 U CN204504306 U CN 204504306U CN 201520145001 U CN201520145001 U CN 201520145001U CN 204504306 U CN204504306 U CN 204504306U
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- cutter hub
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- slotted eye
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Abstract
The utility model discloses a kind of ultra-small diameter PCB slotted eye processing and forming drill point, comprise handle of a knife and the cutter hub being located at handle of a knife one end, cutter hub is conical tip away from one end of handle of a knife, cutter hub is provided with a spiral main chip area along its body direction to its tip, the intersection of main chip area and tip forms cutting edge, and cutter hub is also being provided with a spiral secondary chip area near its tip to center, tip.This ultra-small diameter PCB slotted eye processing and forming drill point adopts cutting edge to be asymmetric multipoint positioning, can improve position, the hole precision that slotted eye is shaping; Only arrange a main chip area, can adopt large helix angle, chip space is large, reduces broken needle; Cutter hub near tip increases single raise chip area, adds chip removal performance; Cutter hub surface arranges the mill back of the body, decreases the contact area of cutter hub surface and hole wall, thus reduces cutter hub to the friction of hole wall, improves hole wall quality; Secondary chip area is only arranged on point accessory, adds the rigidity of cutter hub, reduces broken needle, improves its service life.
Description
Technical field
The utility model relates to a kind of drill point, particularly relates to a kind of ultra-small diameter PCB slotted eye processing and forming drill point.
Background technology
Along with the requirement of pcb board material processing is more and more higher, the processing of pcb board material slotted eye is more and more intensive, diameter is more and more less, required precision is also more and more higher, existing drill point cannot meet this demand, there is many defects in use, as low in positioning precision, chip removal is difficult, broken needle, service life are short etc.
Summary of the invention
In order to overcome above-mentioned defect, the utility model provides a kind of ultra-small diameter PCB slotted eye processing and forming drill point, can improve shaping position, the hole precision of slotted eye and hole wall quality, shortens chip removal, improves short and broken needle problem in its service life.
The utility model in order to the technical scheme solving its technical problem and adopt is: a kind of ultra-small diameter PCB slotted eye processing and forming drill point, comprise handle of a knife and the cutter hub being located at this handle of a knife one end, this cutter hub is conical tip away from one end of this handle of a knife, described cutter hub is provided with a spiral main chip area along its body direction to its tip, the intersection of this main chip area and this tip forms cutting edge, and this cutter hub is also being provided with a spiral secondary chip area near its tip to this center, tip.
As further improvement of the utility model, described cutter hub surface forms the spiral mill back of the body along the hand of spiral of its main chip area, and this cutter hub surface remainder forms spiral land.
As further improvement of the utility model, the helical angle of described main chip area is 25 ° ~ 40 °.
As further improvement of the utility model, the diameter of described cutter hub is 0.1 ~ 0.4mm.
As further improvement of the utility model, the diameter of described handle of a knife is 3.0 ~ 6.0mm.
The beneficial effects of the utility model are: this ultra-small diameter PCB slotted eye processing and forming drill point adopts cutting edge to be asymmetric multipoint positioning, can improve position, the hole precision that slotted eye is shaping; Only arrange a main chip area, can adopt large helix angle, chip space is large, can reduce the broken needle that chip removal difficulty causes; Cutter hub near tip increases single raise chip area, adds chip removal performance; Cutter hub surface arranges the mill back of the body, decreases the contact area of cutter hub surface and hole wall, thus reduces cutter hub to the friction of hole wall, improves hole wall quality; Secondary chip area is only arranged on point accessory, adds the rigidity of cutter hub, reduces broken needle, improves its service life.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is body portion structural representation described in the utility model;
Fig. 3 is tip configuration schematic diagram described in the utility model.
By reference to the accompanying drawings, make the following instructions:
1---handle of a knife 2---cutter hub
3---tip 4---main chip area
5---secondary chip area 6---cutting edge
7---mill back of the body 8---land
Detailed description of the invention
Below in conjunction with accompanying drawing, a preferred embodiment of the present utility model is elaborated.But protection domain of the present utility model is not limited to following embodiment, the simple equivalence namely in every case done with the utility model claim and description changes and modifies, and all still belongs within the utility model patent covering scope.
As Figure 1-3, a kind of ultra-small diameter PCB slotted eye processing and forming drill point, comprise handle of a knife 1 and the cutter hub 2 being located at this handle of a knife one end, this cutter hub is conical tip 3 away from one end of this handle of a knife, described cutter hub is provided with a spiral main chip area 4 along its body direction to its tip, the intersection of this main chip area and this tip forms cutting edge 6, and this cutter hub is also being provided with a spiral secondary chip area 5 near its tip to this center, tip.
Wherein, described cutter hub surface forms the spiral mill back of the body 7 along the hand of spiral of its main chip area, and this cutter hub surface remainder forms spiral land 8; The helical angle of described main chip area is 25 ° ~ 40 °, and the diameter of described cutter hub is 0.1 ~ 0.4mm, and the diameter of described handle of a knife is 3.0 ~ 6.0mm.
Ultra-small diameter PCB slotted eye processing and forming drill point of the present invention can adopt high cobalt content Hardmetal materials to process, and cutting edge is asymmetric multipoint positioning, can improve position, the hole precision that slotted eye is shaping; Only arrange a main chip area, can adopt large helix angle, chip space is large, can reduce the broken needle that chip removal difficulty causes; Cutter hub near tip increases single raise chip area, adds chip removal performance; Cutter hub surface arranges the mill back of the body, decreases the contact area of cutter hub surface and hole wall, thus reduces cutter hub to the friction of hole wall, improves hole wall quality; Secondary chip area is only arranged on point accessory, adds the rigidity of cutter hub, reduces broken needle, improves its service life.
Claims (5)
1. a ultra-small diameter PCB slotted eye processing and forming drill point, comprise handle of a knife (1) and be located at the cutter hub (2) of this handle of a knife one end, this cutter hub is conical tip (3) away from one end of this handle of a knife, it is characterized in that: described cutter hub is provided with a spiral main chip area (4) along its body direction to its tip, the intersection of this main chip area and this tip forms cutting edge (6), and this cutter hub is also being provided with a spiral secondary chip area (5) near its tip to this center, tip.
2. ultra-small diameter PCB slotted eye processing and forming drill point according to claim 1, it is characterized in that: described cutter hub surface forms the spiral mill back of the body (7) along the hand of spiral of its main chip area, this cutter hub surface remainder forms spiral land (8).
3. ultra-small diameter PCB slotted eye processing and forming drill point according to claim 1 and 2, is characterized in that: the helical angle of described main chip area is 25 ° ~ 40 °.
4. ultra-small diameter PCB slotted eye processing and forming drill point according to claim 1 and 2, is characterized in that: the diameter of described cutter hub is 0.1 ~ 0.4mm.
5. ultra-small diameter PCB slotted eye processing and forming drill point according to claim 1 and 2, is characterized in that: the diameter of described handle of a knife is 3.0 ~ 6.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520145001.5U CN204504306U (en) | 2015-03-13 | 2015-03-13 | Ultra-small diameter PCB slotted eye processing and forming drill point |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520145001.5U CN204504306U (en) | 2015-03-13 | 2015-03-13 | Ultra-small diameter PCB slotted eye processing and forming drill point |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204504306U true CN204504306U (en) | 2015-07-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520145001.5U Active CN204504306U (en) | 2015-03-13 | 2015-03-13 | Ultra-small diameter PCB slotted eye processing and forming drill point |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204504306U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107639273A (en) * | 2016-07-22 | 2018-01-30 | 创国兴业有限公司 | Drill bit structure |
-
2015
- 2015-03-13 CN CN201520145001.5U patent/CN204504306U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107639273A (en) * | 2016-07-22 | 2018-01-30 | 创国兴业有限公司 | Drill bit structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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. |