CN202571428U - Large rake angle inner-cooling type milling cutter - Google Patents
Large rake angle inner-cooling type milling cutter Download PDFInfo
- Publication number
- CN202571428U CN202571428U CN 201220153708 CN201220153708U CN202571428U CN 202571428 U CN202571428 U CN 202571428U CN 201220153708 CN201220153708 CN 201220153708 CN 201220153708 U CN201220153708 U CN 201220153708U CN 202571428 U CN202571428 U CN 202571428U
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- Prior art keywords
- blade
- milling cutter
- cutter
- rake angle
- angle inner
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Abstract
The utility model relates to a milling cutter, in particular to a large rake angle inner-cooling type milling cutter, and solves the problems that the existing milling cutter is low in working efficiency, and short in service life, and the processed surface quality cannot meet standards. The milling cutter comprises a cutter body, blades and three set screws, wherein three blade grooves are arranged on a head end of the cutter body; clearance angle of each blade groove is 16 degrees; the blades are fixed in the three blade grooves of the cutter body through the three set screws; the blade rake angle is 15 degrees; and the blade clearance angle is 16 degrees. The large rake angle inner-cooling type milling cutter can be used for processing a surfacing layer at casing split of a middle-high pressure cylinder.
Description
Technical field
The utility model relates to a kind of milling cutter, is specifically related to a kind of big anterior angle inner-cooled milling cutter.
Background technology
The mesohigh cylinder split place of 1,000,000 nuclear power generating sets is designed to weld the heat-resisting alloy structure, and the overlay cladding degree of depth of this cylinder is 3mm-5mm, and root is the R3 fillet; Owing to during the processing overlay cladding, have only the little cutting-in of 3mm-5mm, add the corner wear in man-hour and be exceedingly fast; The former high-speed steel slotting cutter that uses cutter as nose angle R3, this milling cutter not only working (machining) efficiency is low, and service life is short; And machined surface quality is also not ideal enough, needs the cutter of development new structure form.
The utility model content
The utility model is for solving existing milling cutter inefficiency, and service life is short, and the substandard problem of machined surface quality, and then proposes a kind of big anterior angle inner-cooled milling cutter.
The utility model is to address the above problem the technical scheme of taking to be: the utility model comprises cutter hub, blade and three holding screws; The head end of cutter hub is provided with three insert grooves; The relief angle of each insert groove is 16 °; Blade is fixedly mounted in three insert grooves of cutter hub through three holding screws, and the blade anterior angle of blade is 15 °, and the blade relief of blade is 16 °.
The beneficial effect of the utility model is: the utility model adopts the clamped cutting bit chip architecture; When blade abrasion was scrapped, the blade that only need more renew got final product, and has avoided the integral body of cutter to scrap; Practiced thrift the cost of use of a large amount of cutters; The cutter anterior angle of the utility model changes 15 ° into, has improved the sharpness of Tool in Cutting sword, and machined surface roughness is increased to Ra1.6 by former Ra3.2.Because adopt inner-cooling structure, cooling effect promotes greatly, not only improved cutter life, but also improved the crudy of cylinder overlay cladding.
Description of drawings
Fig. 1 is the installation diagram of the utility model, and Fig. 2 is the left view of Fig. 1, and Fig. 3 is the cutter hub outline drawing, and Fig. 4 is the left view of Fig. 3, and Fig. 5 is insert shape figure.
The specific embodiment
The specific embodiment one: combine Fig. 1 to Fig. 5 that this embodiment is described; The said a kind of big anterior angle inner-cooled milling cutter of this embodiment comprises cutter hub 1, blade 2 and three holding screws 3; The head end of cutter hub 1 is provided with three insert groove 1-1, and the relief angle α of each insert groove 1-1 is 16 °, and blade 2 is fixedly mounted in three insert groove 1-1 of cutter hub 1 through three holding screws 3; The blade anterior angle β of blade 2 is 15 °, and the blade relief γ of blade 2 is 16 °.
The specific embodiment two: combine Fig. 1 to Fig. 5 that this embodiment is described; The inside of the cutter hub 1 of the said a kind of big anterior angle inner-cooled milling cutter of this embodiment is provided with main cooling holes 1-2 along the axis direction of cutter hub 1, is provided with branch cooling holes 1-3 in each insert groove 1-1 of cutter hub 1.In this embodiment, the diameter of main cooling holes 1-2 is 6mm, and the diameter of each branch cooling holes 1-3 is 3mm; Each branch cooling holes 1-3 not only plays cooling effect; But also smear metal scratch machined surface is avoided in the smear metal that can remove the cutter rake face, improves cylinder overlay cladding crudy.Other composition and annexation are identical with the specific embodiment one.
The specific embodiment three: combine Fig. 1 to Fig. 5 that this embodiment is described, the blade 2 of the said a kind of big anterior angle inner-cooled milling cutter of this embodiment is the blade 2 that carbide alloy is made.Other composition and annexation are identical with the specific embodiment one or two.
Claims (3)
1. one kind big anterior angle inner-cooled milling cutter; It is characterized in that: said a kind of big anterior angle inner-cooled milling cutter comprises cutter hub (1), blade (2) and three holding screws (3); The head end of cutter hub (1) is provided with three insert grooves (1-1), and the relief angle (α) of each insert groove (1-1) is 16 °, and blade (2) is fixedly mounted in three insert grooves (1-1) of cutter hub (1) through three holding screws (3); The blade anterior angle (β) of blade (2) is 15 °, and the blade relief (γ) of blade (2) is 16 °.
2. according to the said a kind of big anterior angle inner-cooled milling cutter of claim 1, it is characterized in that: the inside of cutter hub (1) is provided with main cooling holes (1-2) along the axis direction of cutter hub (1), is provided with branch cooling holes (1-3) in each insert groove (1-1) of cutter hub (1).
3. according to claim 1 or 2 said a kind of big anterior angle inner-cooled milling cutters, it is characterized in that: blade (2) is the blade (2) that carbide alloy is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220153708 CN202571428U (en) | 2012-04-12 | 2012-04-12 | Large rake angle inner-cooling type milling cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220153708 CN202571428U (en) | 2012-04-12 | 2012-04-12 | Large rake angle inner-cooling type milling cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202571428U true CN202571428U (en) | 2012-12-05 |
Family
ID=47240880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220153708 Expired - Lifetime CN202571428U (en) | 2012-04-12 | 2012-04-12 | Large rake angle inner-cooling type milling cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202571428U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104384589A (en) * | 2014-11-18 | 2015-03-04 | 江苏汤臣汽车零部件有限公司 | Milling cutter for removing shavings and cooling by spraying high pressure water |
| CN104551155A (en) * | 2014-12-23 | 2015-04-29 | 苏州用朴合金工具有限公司 | Hard alloy tool |
| CN108723521A (en) * | 2017-04-14 | 2018-11-02 | 成都道勤数控刀具有限公司 | A kind of thread milling cutter |
-
2012
- 2012-04-12 CN CN 201220153708 patent/CN202571428U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104384589A (en) * | 2014-11-18 | 2015-03-04 | 江苏汤臣汽车零部件有限公司 | Milling cutter for removing shavings and cooling by spraying high pressure water |
| CN104551155A (en) * | 2014-12-23 | 2015-04-29 | 苏州用朴合金工具有限公司 | Hard alloy tool |
| CN108723521A (en) * | 2017-04-14 | 2018-11-02 | 成都道勤数控刀具有限公司 | A kind of thread milling cutter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121205 |
|
| CX01 | Expiry of patent term |