CN201534238U - Longitudinal tree type blade root milling cutter with TiN coating - Google Patents
Longitudinal tree type blade root milling cutter with TiN coating Download PDFInfo
- Publication number
- CN201534238U CN201534238U CN2009203069662U CN200920306966U CN201534238U CN 201534238 U CN201534238 U CN 201534238U CN 2009203069662 U CN2009203069662 U CN 2009203069662U CN 200920306966 U CN200920306966 U CN 200920306966U CN 201534238 U CN201534238 U CN 201534238U
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- China
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- milling cutter
- blade root
- tree type
- type blade
- root milling
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Abstract
A longitudinal tree type blade rood milling cutter with a TiN coating relates to a longitudinal tree type blade root milling cutter and resolves problems that the existing longitudinal tree type blade root milling cutter is short in service life and low in cutting efficiency. A layer of TiN coating with thickness ranging from 0.003mm to 0.005mm is arranged on the outer surface of the body of the longitudinal tree type blade root milling cutter. An end surface rear angle alpha of the longitudinal tree type blade root milling cutter is 5 degrees, a peripheral toothed front angle beta is 5 degrees, and an end surface toothed lateral angle gamma is 0 degree. Compared with the longitudinal tree type blade root milling cutter before being improved, the improved longitudinal tree type blade root milling cutter increases cutting efficiency by 50%, service life of cutters is prolonged by twice to three times, and further, size precision of molded lines of processed blades and blade roots completely meets the design requirement. After being structurally improved, the longitudinal tree type blade root milling cutter with a TiN coating greatly reduces using amount of the cutters, and saves manufacturing cost of the cutters.
Description
Technical field
The utility model relates to a kind of vertical tree type blade root milling cutter.
Background technology
The blade root milling cutter is the special molding milling cutter of processing blade, milling blade root molded lines.Vertical tree type blade root milling cutter is a kind of molding cutter, and the moulding of product molded lines time processing is every very high cutter expense (manufacturing cost), improves structure, prolongs cutter life, to reduce the cutter use amount, reduces the cutter expense, is the problem of a very worth research.After the structure of existing vertical tree type blade root milling cutter comprehensively being analyzed the research with emphasis, tackle it and carry out architecture advances so that vertical tree type blade root milling cutter can be brought into play better benefit.Vertical tree type blade root milling cutter is a kind of that molded lines is the most complicated in the various blade root milling cutters, precision is the highest, difficulty of processing is maximum, and the manufacturing expense of this cutter is very high; There is the problem that service life is short, stock-removing efficiency is low in existing vertical tree type blade root milling cutter, therefore, the structure of this cutter is improved to improve cutter life, improve Tool in Cutting efficient, to reduce the cutter expense and seem particularly important.
The utility model content
The problem that the utility model is short at vertical tree type blade root milling cutter service life, stock-removing efficiency is low, and then a kind of vertical tree type blade root milling cutter of the TiN of having coating is provided.
The utility model is to solve the problems of the technologies described above the technical scheme of taking to be: the outer surface of the vertical tree type blade root milling cutter body of the TiN of having coating described in the utility model is provided with the TiN coating that a layer thickness is 0.003-0.005mm; The face relief angle α of described vertical tree type blade root milling cutter is 5 °, and circumferential teeth anterior angle β is 5 °, and end face flank angle γ is 0 °.
The beneficial effects of the utility model are: the vertical tree type blade root milling cutter after the improvement compared with before-improvement, stock-removing efficiency improves 50%, improve 2-3 cutter life doubly, and the blade root molded lines dimensional accuracy that processes reaches designing requirement fully.The architecture advances of vertical tree type blade root milling cutter has significantly reduced the usage quantity of this cutter, the manufacturing expense of having saved this cutter.
Description of drawings
Fig. 1 is a front view of the present utility model, and Fig. 2 is the left view of Fig. 1, and Fig. 3 is the A-A cutaway view of Fig. 1; Fig. 4 is the front view of the specific embodiment two described vertical tree type blade root milling cutters, and Fig. 5 is the right view of the left milling cutter of Fig. 4, and Fig. 6 is the left view of the right milling cutter of Fig. 4; Fig. 7 is the front view (structural representation of former vertical tree type blade root milling cutter) of existing vertical tree type blade root milling cutter, and Fig. 8 is the left view of Fig. 7, and Fig. 9 is the B-B cutaway view of Fig. 7.
The specific embodiment
The specific embodiment one: shown in Fig. 1～3, the outer surface of the vertical tree type blade root milling cutter body of the described TiN of the having coating of present embodiment is provided with the TiN coating 2 that a layer thickness is 0.003-0.005mm; The face relief angle α of described vertical tree type blade root milling cutter is 5 °, and circumferential teeth anterior angle β is 5 °, and end face flank angle (end face side angle) γ is 0 °.
In order to improve the service life of cutter, after vertical tree type blade root milling cutter manufacturing completion, it has been carried out face coat, what adopt is the TiN coating technology, coating layer thickness is 0.003-0.005mm, can not influence the precision of this milling cutter fully, has improved case hardness and mar proof thereof behind the cutter coat greatly, fine through the actual cut result of use, improve 30%～50% cutter life.
It is 10 ° that the end face flank angle of former vertical tree type blade root milling cutter is designed to 3 °, face relief angle, but finds that in use end wear is fast especially, after the serious wear, causes product processed molded lines length not enough, greatly reduces the service life of cutter.Now make improvements, cancel 3 ° of end face flank angles, end face flank angle is decided to be zero degree, and face relief angle is designed to 5 °, improves rear end face tooth intensity and improves greatly, and cutter life obtains prolonging, and does not influence service precision fully.
Former vertical tree type blade root milling cutter is former to be designed to 0 ° of circumferential teeth anterior angle, this structure cutter is sharp inadequately, resistance to cutting is big, unique advantage is processed exactly and is easier to, but because the continuous lifting of working ability now is designed to 5 ° with former vertical tree type blade root milling cutter circumferential teeth anterior angle, after the improvement, through actual cut, resistance to cutting reduces greatly, the vibration when having eliminated cutting, not only improved cutting effect, but also made product obtain better surface roughness.
The specific embodiment two: shown in Fig. 4～6, the described vertical tree type blade root of present embodiment milling cutter is made of left milling cutter 1-1 and right milling cutter 1-2 two parts, and described left milling cutter 1-1 and right milling cutter 1-2 link together by key and constitute complete vertical tree type blade root milling cutter.Less than 85mm, take monolithic construction for tool length L, and for tool length L greater than 85mm because cutting width is too big during milling, for reasonable distribution chipping allowance and cutting force, selected two piece combined vertical tree type blade root milling cutters.Add man-hour, the circumferential teeth rake face of left milling cutter, right milling cutter can guarantee machining accuracy like this on same plane; During use, the circumferential teeth rake face of left milling cutter, the right milling cutter installation certain angle that staggers, making left milling cutter, right milling cutter is not to cut simultaneously, and cutting force is little like this, and the vibration of generation is little.Other composition and annexation are identical with the specific embodiment one.
The specific embodiment three: the outer surface of the described vertical tree type blade root of present embodiment milling cutter body is provided with the TiN coating that a layer thickness is 0.004mm.Other composition and annexation are identical with the specific embodiment one or two.
Claims (3)
1. vertical tree type blade root milling cutter that has the TiN coating, it is characterized in that: the outer surface of described vertical tree type blade root milling cutter body is provided with the TiN coating (2) that a layer thickness is 0.003-0.005mm; The face relief angle (α) of described vertical tree type blade root milling cutter is 5 °, and circumferential teeth anterior angle (β) is 5 °, and end face flank angle (γ) is 0 °.
2. the vertical tree type blade root milling cutter that has the TiN coating according to claim 1, it is characterized in that: described vertical tree type blade root milling cutter is made of left milling cutter (1-1) and right milling cutter (1-2) two parts, and described left milling cutter (1-1) and right milling cutter (1-2) link together by key and constitute complete vertical tree type blade root milling cutter.
3. the vertical tree type blade root milling cutter that has the TiN coating according to claim 1 and 2 is characterized in that: the outer surface of described vertical tree type blade root milling cutter body is provided with the TiN coating that a layer thickness is 0.004mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203069662U CN201534238U (en) | 2009-07-28 | 2009-07-28 | Longitudinal tree type blade root milling cutter with TiN coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203069662U CN201534238U (en) | 2009-07-28 | 2009-07-28 | Longitudinal tree type blade root milling cutter with TiN coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201534238U true CN201534238U (en) | 2010-07-28 |
Family
ID=42534023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203069662U Expired - Lifetime CN201534238U (en) | 2009-07-28 | 2009-07-28 | Longitudinal tree type blade root milling cutter with TiN coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201534238U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105414637A (en) * | 2015-12-31 | 2016-03-23 | 无锡透平叶片有限公司 | Milling cutter for machining fir-tree roots of steam turbine blades and design method of milling cutter |
| CN110653406A (en) * | 2019-10-22 | 2020-01-07 | 成都岷江精密刀具有限公司 | Sleeve type integral blade root milling cutter body blank and manufacturing method thereof |
| CN110976995A (en) * | 2019-12-23 | 2020-04-10 | 东方电气集团东方汽轮机有限公司 | Jumbo size blade root finish milling cutter |
-
2009
- 2009-07-28 CN CN2009203069662U patent/CN201534238U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105414637A (en) * | 2015-12-31 | 2016-03-23 | 无锡透平叶片有限公司 | Milling cutter for machining fir-tree roots of steam turbine blades and design method of milling cutter |
| CN105414637B (en) * | 2015-12-31 | 2018-04-03 | 无锡透平叶片有限公司 | A kind of milling cutter and its design method for the processing of turbine blade fir tree blade root |
| CN110653406A (en) * | 2019-10-22 | 2020-01-07 | 成都岷江精密刀具有限公司 | Sleeve type integral blade root milling cutter body blank and manufacturing method thereof |
| CN110976995A (en) * | 2019-12-23 | 2020-04-10 | 东方电气集团东方汽轮机有限公司 | Jumbo size blade root finish 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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100728 |