CN204621171U - A kind of back taper tapering forming cutter - Google Patents
A kind of back taper tapering forming cutter Download PDFInfo
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- CN204621171U CN204621171U CN201520334245.8U CN201520334245U CN204621171U CN 204621171 U CN204621171 U CN 204621171U CN 201520334245 U CN201520334245 U CN 201520334245U CN 204621171 U CN204621171 U CN 204621171U
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- drill lip
- back taper
- forming cutter
- spiral
- drillstock
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Abstract
The utility model relates to a kind of back taper tapering forming cutter, comprise drillstock and the drill lip being arranged at described drillstock one end, the outer surface of described drill lip arranges at least three spiral grooves to form at least three spiral side edges, each described spiral side edge partly without leave the end of described drill lip towards described drillstock direction convergent.Back taper tapering forming cutter of the present utility model by forming spiral grooves and spiral side edge on drill lip, and makes drill lip be taper, and centering is steady, and substantially reduce cutting resistance, increase chip space simultaneously, chip removal is smooth and easy, improves the stability of cutting.
Description
Technical field
The utility model relates to a kind of cutter of back taper, particularly relates to a kind of tapering forming cutter processing back taper.
Background technology
In machining industry, need to carry out back taper to the hole processed, to meet instructions for use.The processing of existing back taper uses roll forming method, gear shaping method and the squeezing that rises usually, and wherein, roll forming method working (machining) efficiency is high but precision is low, poor for applicability; The flexibility of gear shaping method is high but efficiency is lower, the general part only can not processed for roll forming method; The squeezing efficiency that rises and precision all very high, but cutter is costly, and fixture is complicated.
The shaping back taper of which kind of method above-mentioned that don't work, in operation, cutting resistance is large, centering is unstable, causes cutting instability, decreases the service life of forming cutter for the forming cutter of back taper.
Utility model content
For solving the problems of the technologies described above, the purpose of this utility model is to provide the back taper tapering forming cutter that a kind of cutting resistance is little, centering surely makes cutting stable.
Back taper tapering forming cutter of the present utility model, comprise drillstock and the drill lip being arranged at described drillstock one end, the outer surface of described drill lip arranges at least three spiral grooves to form at least three spiral side edges, each described spiral side edge partly without leave the end of described drill lip towards described drillstock direction convergent.
Further, the end of described drill lip is a plane.
Further, each described spiral side edge is all provided with seamed edge along its hand of spiral.
Further, the outer surface of described drill lip arranges four described spiral grooves to form four described spiral side edges.
Further, the outer peripheral face of described drillstock is arranged with groove.
Further, described drill lip is made up of carbide alloy.
By such scheme, back taper tapering forming cutter of the present utility model by forming spiral grooves and spiral side edge on drill lip, and makes drill lip be taper, centering is steady, substantially reduces cutting resistance, increases chip space simultaneously, chip removal is smooth and easy, improves the stability of cutting.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be implemented according to the content of description, coordinates accompanying drawing to be described in detail as follows below with preferred embodiment of the present utility model.
Accompanying drawing explanation
Fig. 1 is structural front view of the present utility model;
Fig. 2 is structure side view of the present utility model.
Detailed description of the invention
Below in conjunction with drawings and Examples, detailed description of the invention of the present utility model is described in further detail.Following examples for illustration of the utility model, but are not used for limiting scope of the present utility model.
See Fig. 1 and Fig. 2, a kind of back taper tapering forming cutter described in the utility model one preferred embodiment, comprise drillstock 10 and the drill lip 20 being arranged at drillstock 10 one end, the outer surface of drill lip 20 arranges at least three spiral grooves 21 to form at least three spiral side edges 22, each spiral side edge 22 partly the end of drill lip 20 is towards drillstock 10 direction convergent without leave, namely drill lip 20 is cone-shaped.The radius of spiral side edge 22 is the beeline of distal-most edge to drillstock 10 rotation of spiral side edge 22.Preferably, the utility model arranges four spiral grooves 21 to form four spiral side edges 22 at the outer surface of drill lip 20.Increase chip space by arranging four spiral grooves 21, chip removal is smooth and easy, improves the stability of cutting; Utilize four spiral grooves 21 to form four spiral side edges 22, centering is steady, and cut brisk, chip breaking is light; Make drill lip 20 form cone-shaped, reduce cutting resistance.
Concrete, the end of drill lip 20 of the present utility model is a plane, specifically as shown in Figure 2, can anti-tipping blade, resistance to wear.
Further, each spiral side edge 22 is equipped with seamed edge 23 along its hand of spiral, stability and the wearability of drill lip 20 can be improved.
The outer peripheral face of the drillstock 10 in the utility model is arranged with groove 11, is convenient to drillstock 10 to be installed on fixture or lathe process workpiece.
Drill lip 20 in the utility model is made up of carbide alloy, and drill lip 20 possesses higher rigidity.
The beneficial effect of back taper tapering forming cutter of the present utility model is as follows:
1, by forming spiral grooves and spiral side edge on drill lip, and make drill lip be taper, centering is steady, and substantially reduce cutting resistance, increase chip space simultaneously, chip removal is smooth and easy, improves the stability of cutting;
2, the end of drill lip is set to plane, can tipping be avoided, resistance to wear;
3, seamed edge is set on spiral side edge, further increases stability and the wearability of drill lip.
The above is only preferred embodiment of the present utility model; be not limited to the utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model know-why; can also make some improvement and modification, these improve and modification also should be considered as protection domain of the present utility model.
Claims (6)
1. a back taper tapering forming cutter, it is characterized in that: comprise drillstock and the drill lip being arranged at described drillstock one end, the outer surface of described drill lip arranges at least three spiral grooves to form at least three spiral side edges, each described spiral side edge partly without leave the end of described drill lip towards described drillstock direction convergent.
2. back taper tapering forming cutter according to claim 1, is characterized in that: the end of described drill lip is a plane.
3. back taper tapering forming cutter according to claim 2, is characterized in that: each described spiral side edge is all provided with seamed edge along its hand of spiral.
4. back taper tapering forming cutter according to claim 3, is characterized in that: the outer surface of described drill lip arranges four described spiral grooves to form four described spiral side edges.
5. back taper tapering forming cutter according to claim 4, is characterized in that: the outer peripheral face of described drillstock is arranged with groove.
6. back taper tapering forming cutter according to claim 5, is characterized in that: described drill lip is made up of carbide alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520334245.8U CN204621171U (en) | 2015-05-22 | 2015-05-22 | A kind of back taper tapering forming cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520334245.8U CN204621171U (en) | 2015-05-22 | 2015-05-22 | A kind of back taper tapering forming cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204621171U true CN204621171U (en) | 2015-09-09 |
Family
ID=54040234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520334245.8U Active CN204621171U (en) | 2015-05-22 | 2015-05-22 | A kind of back taper tapering forming cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204621171U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109365890A (en) * | 2018-12-10 | 2019-02-22 | 无锡透平叶片有限公司 | Cutter for turbine blade back taper feature machining |
-
2015
- 2015-05-22 CN CN201520334245.8U patent/CN204621171U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109365890A (en) * | 2018-12-10 | 2019-02-22 | 无锡透平叶片有限公司 | Cutter for turbine blade back taper feature machining |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Suzhou City, Jiangsu province 215000 Suzhou Industrial Park Loufeng town Shuangyang Road Venture Industrial Square No. 9 Patentee after: Antimony (Suzhou) precision tool Limited by Share Ltd Address before: No. 9 workshop of Jiangsu Suzhou City, Jiangsu Patentee before: D & M (Suzhou) Precision Cutting Tools Co., Ltd. |