CN101733464A - Double-ended wave edge type maize milling cutter - Google Patents
Double-ended wave edge type maize milling cutter Download PDFInfo
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- CN101733464A CN101733464A CN200810209547A CN200810209547A CN101733464A CN 101733464 A CN101733464 A CN 101733464A CN 200810209547 A CN200810209547 A CN 200810209547A CN 200810209547 A CN200810209547 A CN 200810209547A CN 101733464 A CN101733464 A CN 101733464A
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Abstract
The invention provides a double-ended wave edge type maize milling cutter, relates to a maize milling cutter, and solves the problems that the conventional maize milling cutter is easy to abrade so that feed amount and cutting speed cannot be too high, and too high feed amount and too high cutting speed are easy to cause cutter tipping, short service life of the cutter, low machining efficiency and the like. The outer surface of the cutter body of the double-ended wave edge type maize milling cutter is provided with peripheral teeth, and cutting edges of the peripheral teeth are provided with double-ended wave edge type scrap separating slots. The double-ended wave edge type maize milling cutter is an ideal rough machining cutter. Actual machining proves that the double-ended wave edge type maize milling cutter has good effect, particularly obvious effect on milling machining of stainless steel blades of a turbine, improves the cutting efficiency by 2 to 3 times than that of the common maize milling cutter, and improves the service life by 1.5 to 2 times than that of the conventional maize milling cutter. The double-ended wave edge type design improves toughness and strength of the cutter, improves the machining efficiency of the cutter by over 30 percent, saves a great amount of cutter cost and reduces the production cost of products.
Description
Technical field
The present invention relates to a kind of maize milling cutter.
Background technology
Maize milling cutter (the outer likeness in form corn shape of milling cutter, so be called maize milling cutter) be to rough mill the cutter that blade must adopt, consumption is very big, the construction profile of existing maize milling cutter as shown in Figure 1, the helical angle of existing maize milling cutter is that 25 °, milling cutter anterior angle are 8 °, having chip dividing groove on circumferential teeth, is a kind of more common roughing tool.In long-term the use, find that there are a lot of weak points in existing maize milling cutter, be difficult to satisfy the fast development of making process technology, its subject matter is the unreasonable structure (as seen from Figure 2) of chip dividing groove, its flute profile is trapezoidal, though can reach branch bits effect, but there are a lot of wedge angles in trapezoidal chip dividing groove, in when cutting, cutter is easy to wearing and tearing, and the amount of feeding, cutting speed can not be excessive, not so be easy to cause the cutter tipping, influence the service life of cutter, working (machining) efficiency is low, does not satisfy the production and processing needs.For comply with at a high speed, the development of the high efficiency process technology of high-precision, high reliability, the conventional corn milling cutter is difficult to satisfy produces needs.
Summary of the invention
The present invention exists cutter to wear and tear easily in order to solve existing maize milling cutter, causes the amount of feeding, cutting speed can not be excessive, otherwise causes short, the low inferior problem of working (machining) efficiency of cutter tipping, cutter life easily; And then provide a kind of double-ended wave edge type maize milling cutter.
The present invention solves the problems of the technologies described above the technical scheme of taking to be: a kind of double-ended wave edge type maize milling cutter, the cutter hub of described maize milling cutter is provided with circumferential teeth in appearance, has the double-ended wave edge type chip dividing groove on the cutting edge of described circumferential teeth.
The invention has the beneficial effects as follows: the present invention is a kind of more satisfactory roughing tool, in reality processing, confirm, effect of the present invention is fine, especially on the Milling Process of steam turbine stainless steel blade, effect is more remarkable, stock-removing efficiency improves 2～3 times than conventional corn milling cutter, the present invention improves 1.5～2 times than former maize milling cutter on service life, the design of double-ended wave edge shape has strengthened the toughness and the intensity of cutter, make the cutter working (machining) efficiency improve more than 30%, save a large amount of cutter expenses, reduced production cost of products.
At first select for use major diameter maize milling cutter (∮ 100) to do experiment, wavelength is selected 5mm (pitch) for use, depth of convolution 1.2mm, single head ripple sword, but through cutting test, effect is not ideal enough, the surface that processes is very coarse, and height occurring 0.8～1mm waveform drop (as shown in Figure 3, G partly represents after the milling residual materials on the workpiece), do not reach the workpiece surface roughness requirement, reason is just to be fed into next cutting point when cutter does not also have the full-depth tooth cutting, so finished surface has stayed the depth of convolution H1 (as Fig. 3) of 0.8～1mm, its reason is that cutter is not cut (wave edge type) completely, for remedying this defective, on the basis of original single head ripple sword, examination transformation of the way double end waveform (as Fig. 4), wavelength 5mm, helical pitch is 10mm, through cutting test repeatedly with repeatedly improve, and revolution is brought up to 60r/min by original 47.5r/min, reach designing requirement fully, the cutting surface depth of convolution can be controlled at about 0.05mm, can satisfy fully for roughing tool and produce needs.
Because the cutting edge of cutter is a double-ended wave edge type, so on making, increased degree-of-difficulty factor, main difficulty is on gear milling lathe grinding wave edge type, if the molded lines R (waveform) of emery wheel is reconditioning by hand, be difficult to reach the standard of waveform, emery wheel is at any time all in threshing when adding grinding, be difficult to consistent again behind the reconditioning emery wheel with preceding waveform, the size of the depth of convolution also is difficult to reach, for accuracy and the dimensional accuracy that guarantees the cutter waveform, we develop the roller that special use grinds waveform: utilize roller that emery wheel roller mill is finished, on gear milling lathe, grind the waveform of milling cutter again with the emery wheel behind the roller mill, be shaped with the roller reconditioning again after the emery wheel threshing, produce in batches, the waveform one that also can the guarantee milling cutter dimensional accuracy of making peace has satisfied every technical requirement on design of maize milling cutter wave edge type.
Description of drawings
Fig. 1 is the structure chart of existing maize milling cutter, Fig. 2 is the profile (having trapezoidal chip dividing groove) of existing maize milling cutter circumferential teeth, Fig. 3 is with the workpieces surface condition figure after the milling of single head wave edge type maize milling cutter, Fig. 4 is the profile (having the double-ended wave edge type chip dividing groove) of maize milling cutter circumferential teeth of the present invention, Fig. 5 is a front view of the present invention, Fig. 6 is the left view of Fig. 5, Fig. 7 is the A-A cutaway view of Fig. 5, Fig. 8 is the B-B cutaway view of Fig. 6, and Fig. 9 is with double-ended wave edge type maize milling cutter processing of the present invention back short strip shape bits figure.
The specific embodiment
The specific embodiment one: shown in Fig. 1～9, the cutter hub of the described double-ended wave edge type maize milling cutter of present embodiment is provided with circumferential teeth in appearance, has double end (as an I and the II of Fig. 4) wave edge type chip dividing groove 1 on the cutting edge of described circumferential teeth.Described double-ended wave edge type chip dividing groove is: on the milling cutter circumferential teeth, have two wavelength 5mm, and helical pitch 10mm, staggered wave edge type (R shape) chip dividing groove has remedied the problem of single head wave edge type machined surface roughness during cutting.
The double-ended wave edge type chip dividing groove is the ripple sword structure that wavy intersection chip dividing groove forms, and each chip dividing groove is slick and sly to be connected, and iron filings become short strip shape (as Fig. 9) during cutting, and the chip breaking effect is very good, cuts briskly, and the toughness and the intensity of cutter are guaranteed fully.
The specific embodiment two: shown in Fig. 1～9, the helical pitch L of the described double-ended wave edge type chip dividing groove of present embodiment is 10mm, and wavelength L1 is 5mm, and the depth of convolution is 1.2mm.Through the actual cut checking, adopt the wave edge type of this parameter, the double-ended wave edge complementation has best technique effect.Other composition and annexation are identical with the specific embodiment one.
The specific embodiment three: shown in Fig. 1～9, the described maize milling cutter of present embodiment adopts the W9Mo3Cr4V high speed steel material to make, and the tool surface coating is handled.This cutter adopts the TiAlN coating, improves tool surface hardness and reaches HRC75-80, makes cutter more wear-resisting, improves cutter life.Other composition and annexation are identical with the specific embodiment one.
The specific embodiment four: shown in Fig. 1～9, the milling cutter anterior angle α of the described maize milling cutter of present embodiment is 10 °, and helixangle is 35 °.Because wave edge type maize milling cutter has better intensity and toughness, after coating was handled, the milling cutter case hardness strengthened again, thus adopt 10 ° of bigger anterior angles, so that edge of milling cutter is sharp, the cutting is brisk.Adopt 35 ° of bigger helical angles, frictional force and resistance when reducing to cut.Other composition and annexation are identical with the specific embodiment one.
Claims (4)
1. double-ended wave edge type maize milling cutter, the cutter hub of described maize milling cutter is provided with circumferential teeth in appearance, it is characterized in that: have double-ended wave edge type chip dividing groove (1) on the cutting edge of described circumferential teeth.
2. double-ended wave edge type maize milling cutter according to claim 1 is characterized in that: the helical pitch L of described double-ended wave edge type chip dividing groove is 10mm, and wavelength L1 is 5mm, and depth of convolution H is 1.2mm.
3. double-ended wave edge type maize milling cutter according to claim 1 is characterized in that: described maize milling cutter adopts the W9Mo3Cr4V high speed steel material to make.
4. double-ended wave edge type maize milling cutter according to claim 1 is characterized in that: the milling cutter anterior angle α of described maize milling cutter is 10 °, and helixangle is 35 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810209547A CN101733464A (en) | 2008-11-27 | 2008-11-27 | Double-ended wave edge type maize milling cutter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810209547A CN101733464A (en) | 2008-11-27 | 2008-11-27 | Double-ended wave edge type maize milling cutter |
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| CN101733464A true CN101733464A (en) | 2010-06-16 |
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| CN200810209547A Pending CN101733464A (en) | 2008-11-27 | 2008-11-27 | Double-ended wave edge type maize milling cutter |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102689240A (en) * | 2012-05-29 | 2012-09-26 | 哈尔滨汽轮机厂有限责任公司 | Corn milling cutter and method for machining double-head corrugated corn milling cutter by using corn milling cutter |
| CN109604694A (en) * | 2019-02-01 | 2019-04-12 | 河南理工大学 | Improve the novel milling cutter of processing stability |
| CN110860723A (en) * | 2019-12-05 | 2020-03-06 | 株洲钻石切削刀具股份有限公司 | Cutting blade for hole machining |
-
2008
- 2008-11-27 CN CN200810209547A patent/CN101733464A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102689240A (en) * | 2012-05-29 | 2012-09-26 | 哈尔滨汽轮机厂有限责任公司 | Corn milling cutter and method for machining double-head corrugated corn milling cutter by using corn milling cutter |
| CN102689240B (en) * | 2012-05-29 | 2014-09-17 | 哈尔滨汽轮机厂有限责任公司 | Corn milling cutter and method for machining double-head corrugated corn milling cutter by using corn milling cutter |
| CN109604694A (en) * | 2019-02-01 | 2019-04-12 | 河南理工大学 | Improve the novel milling cutter of processing stability |
| CN110860723A (en) * | 2019-12-05 | 2020-03-06 | 株洲钻石切削刀具股份有限公司 | Cutting blade for hole machining |
| CN110860723B (en) * | 2019-12-05 | 2021-01-29 | 株洲钻石切削刀具股份有限公司 | Cutting blade for hole machining |
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Open date: 20100616 |