CN103071838B - Welded hard alloy formed cutter for processing blade tenon - Google Patents
Welded hard alloy formed cutter for processing blade tenon Download PDFInfo
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- CN103071838B CN103071838B CN201210571756.2A CN201210571756A CN103071838B CN 103071838 B CN103071838 B CN 103071838B CN 201210571756 A CN201210571756 A CN 201210571756A CN 103071838 B CN103071838 B CN 103071838B
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- milling cutter
- blade tenon
- knife bar
- hard alloy
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Abstract
A welded hard alloy formed cutter for processing blade tenon consists of cutter teeth and a cutter bar, wherein six cutter teeth are provided, have the same structure; each cutter tooth consist of a blade support and a hard alloy blade welded on the blade support; the cutting edge line of the hard alloy blade is matched with a blade tenon to be processed in shape; the cutter bar is cylindrical; the cutter teeth are distantly arranged around one end part of the cutter bar at equal angles; and the blade support of the cutter teeth are fixedly connected or integrated with the cutter bar respectively.
Description
Technical field
The invention belongs to profile milling cutter, particularly a kind of profile milling cutter for machining blade tenon.
Background technology
Blade tenon is requisite part on the equipment such as engine, gas turbine, blower fan, traditional blade tenon machine-shaping milling cutter adopts high-speed steel profile milling cutter or whole hard alloy profile milling cutter, diameter about 120mm, cutter tooth is generally 12, the shape of cutter tooth and the mating shapes of processed blade tenon, its anterior angle is 0 °, and relief angle is 5 ° ~ 7 °, each cutter tooth is equiangularly arranged in supporting apart and holds concurrently on the annulus of positioning function, as shown in Figure 1.Due to the structure and material of milling cutter, cause having the following disadvantages: centre bore can only be adopted when (1) installs on milling machine to locate, the cumulative errors thus occurred when milling cutter centre bore and handle of a knife assembling will affect machining accuracy; (2) milling cutter diameter is large, cutter tooth is many can increase cost of manufacture; (3) angle of milling cutter is arranged affects its sharpness; (4) high-speed steel forming cutter is formed by abrasive wheel forming relief grinding, and the most weakness of emery wheel of relief grinding forming cutter is R or wedge angle position, and in relief grinding process, be easy to wearing and tearing can not be repaired by compensation; (5) whole hard alloy profile milling cutter cost intensive is more than ten times of common molding cutter cost.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of welding carbide alloy profile milling cutter of machining blade tenon is provided, to reduce position error, improve crudy, production efficiency and service life, and reduce costs.
The welding carbide alloy profile milling cutter of machining blade tenon of the present invention, be made up of cutter tooth and knife bar, described cutter tooth is six, the structure of each cutter tooth is identical, form by insert supporting and the carbide chip be welded on insert supporting, the cutting edge molded line of described carbide chip and the mating shapes of processed blade tenon, described knife bar is cylindrical, each cutter tooth is apart angularly arranged around the end, one end of knife bar, and their insert supporting is connected with knife bar respectively or is integrated.
In order to improve the sharpness of milling cutter, the angle of milling cutter being improved, relief angle being designed to two, and the angle of anterior angle and two relief angles is optimized, the anterior angle α of its carbide chip is 4 °, and the first relief angle β 1 is 8 °, and the second relief angle β 2 is 12 °.
The welding carbide alloy profile milling cutter of machining blade tenon of the present invention, its diameter phi is 60mm ~ 80mm.
The welding carbide alloy profile milling cutter of machining blade tenon of the present invention, its knife bar and insert supporting select 42CrMo to make, and carbide chip selects carbide alloy YG 8 20 to make.
When the welding carbide alloy profile milling cutter of machining blade tenon of the present invention is installed on milling machine, adopt central shaft locate mode, its knife bar is inserted in powerful handle, compresses from outside to inside.
The welding carbide alloy profile milling cutter of machining blade tenon of the present invention adopts numerical control tool grinder to carry out Pattern In Grinding Cemented Carbide blade cutting edge, the machining accuracy of monolithic devices line profile 0.03mm, stress surface molded line profile 0.015mm can be reached, to ensure the quality of processed blade tenon and to reduce the reconditioning number of times of milling cutter.
The present invention has following beneficial effect:
1, because profile milling cutter of the present invention adopts central shaft locate mode, not only reduce the clamping gap cumulative errors between milling cutter and handle of a knife, and install more convenient.
2, test shows, profile milling cutter of the present invention is compared with high-speed steel profile milling cutter, and working (machining) efficiency increases substantially, and feeding brings up to 260 ~ 320mm/min from 80 ~ 120mm/min.
3, test shows, use profile milling cutter of the present invention compared with use high-speed steel profile milling cutter, the leaf quality processed promotes obviously, and surface smoothness rises to Ra0.8 from Ra1.6 ~ 3.2.
4, test shows, the single life-span of profile milling cutter of the present invention is more than 7 times of high-speed steel profile milling cutter.
5, profile milling cutter of the present invention is compared with whole hard alloy profile milling cutter, cost reduces by 90%, profile milling cutter of the present invention compared with high-speed steel profile milling cutter, when considering cost of equipment and cutter expense, single-piece work cost savings cost 10%.
6, profile milling cutter highly versatile of the present invention, can be widely used in the processing of all kinds of blade tenon, is applicable to produce in enormous quantities.
Accompanying drawing explanation
Fig. 1 is shape and the organigram of existing high-speed steel profile milling cutter or whole hard alloy profile milling cutter;
Fig. 2 is a kind of shape and the organigram of the welding carbide alloy profile milling cutter of machining blade tenon of the present invention;
Fig. 3 is the perspective view of Fig. 2;
Fig. 4 is the left view of Fig. 3;
Fig. 5 is the partial enlarged drawing at M place in Fig. 3, illustrates a kind of cutting edge molded line of carbide chip in the welding carbide alloy profile milling cutter of machining blade tenon of the present invention;
Fig. 6 is a kind of schematic diagram of processed blade tenon.
In figure, 1-knife bar, 2-insert supporting, 3-carbide chip, 4-carbide chip cutting edge molded line, α-anterior angle, β 1-the first relief angle, β 2-the second relief angle, φ-milling cutter diameter.
Detailed description of the invention
Also by reference to the accompanying drawings the welding carbide alloy profile milling cutter of machining blade tenon of the present invention is described further below by embodiment.
In the present embodiment, described welding carbide alloy profile milling cutter is used for the blade tenon of gas turbine shown in manuscript 6, the shape of described welding carbide alloy profile milling cutter and structure are as Fig. 2, Fig. 3, shown in Fig. 4, be made up of cutter tooth and knife bar 1, described cutter tooth is six, the structure of each cutter tooth is identical, form by insert supporting 2 and the carbide chip 3 be welded on insert supporting, described carbide chip 3 carbide alloy YG 8 20 makes, its cutting edge molded line 4 is " V " shape (shown in Fig. 5), match with the shape (see figure 6) of processed blade tenon, its anterior angle α is 4 °, first relief angle β 1 is 8 °, second relief angle β 2 is 12 ° of (see figure 4)s, described knife bar 1 is cylindrical, diameter 32mm, described insert supporting 2 is integrated with knife bar, end, one end around knife bar 1 is apart angularly arranged, the milling cutter diameter φ formed is 68mm, knife bar 1 and insert supporting 2 all make of 42CrMo.
The invention is not restricted to above-described embodiment, such as, the cutting edge molded line of carbide chip 3 is along with the change in shape of processed blade tenon.
Claims (2)
1. the welding carbide alloy profile milling cutter of a machining blade tenon, comprise cutter tooth, characterized by further comprising knife bar (1), described cutter tooth is six, the structure of each cutter tooth is identical, form by insert supporting (2) and the carbide chip (3) be welded on insert supporting, the cutting edge molded line (4) of described carbide chip and the mating shapes of processed blade tenon, the anterior angle α of carbide chip (3) is 4 °, first relief angle β 1 is 8 °, second relief angle β 2 is 12 °, described knife bar is cylindrical, each cutter tooth is apart angularly arranged around the end, one end of knife bar (1), their insert supporting (2) is connected with knife bar (1) or is integrated respectively.
2. the welding carbide alloy profile milling cutter of machining blade tenon according to claim 1, is characterized in that the diameter of this milling cutter
for 60mm ~ 80mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210571756.2A CN103071838B (en) | 2012-12-25 | 2012-12-25 | Welded hard alloy formed cutter for processing blade tenon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210571756.2A CN103071838B (en) | 2012-12-25 | 2012-12-25 | Welded hard alloy formed cutter for processing blade tenon |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103071838A CN103071838A (en) | 2013-05-01 |
| CN103071838B true CN103071838B (en) | 2015-07-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210571756.2A Active CN103071838B (en) | 2012-12-25 | 2012-12-25 | Welded hard alloy formed cutter for processing blade tenon |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104001978A (en) * | 2014-06-13 | 2014-08-27 | 苏州博睿测控设备有限公司 | Hard alloy milling tool |
| CN105414621B (en) * | 2015-12-07 | 2017-11-10 | 四川成发航空科技股份有限公司 | A kind of processing method of the asymmetric blade tenon of pressure face |
| CN105364155A (en) * | 2015-12-24 | 2016-03-02 | 成都邦普切削刀具股份有限公司 | Metal cutting milling cutter |
| CN106583819B (en) * | 2016-12-07 | 2019-01-11 | 四川成发航空科技股份有限公司 | A kind of processing method of blade arc shape tenon pressure face and its correlation surface and faceted pebble |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201735856U (en) * | 2010-09-07 | 2011-02-09 | 贵州西南工具(集团)有限公司 | Low-cost alloy material end mill structure |
| CN202411512U (en) * | 2011-12-14 | 2012-09-05 | 常州市北方合金工具有限公司 | Molding welding milling cutter |
| CN202447738U (en) * | 2011-12-13 | 2012-09-26 | 常州正河源数控工具有限公司 | Forming milling cutter |
-
2012
- 2012-12-25 CN CN201210571756.2A patent/CN103071838B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201735856U (en) * | 2010-09-07 | 2011-02-09 | 贵州西南工具(集团)有限公司 | Low-cost alloy material end mill structure |
| CN202447738U (en) * | 2011-12-13 | 2012-09-26 | 常州正河源数控工具有限公司 | Forming milling cutter |
| CN202411512U (en) * | 2011-12-14 | 2012-09-05 | 常州市北方合金工具有限公司 | Molding welding milling cutter |
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| Publication number | Publication date |
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| CN103071838A (en) | 2013-05-01 |
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