CN101417346A - A kind of cemented carbides indexable turning rough boring cutter - Google Patents
A kind of cemented carbides indexable turning rough boring cutter Download PDFInfo
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- CN101417346A CN101417346A CNA2008102357431A CN200810235743A CN101417346A CN 101417346 A CN101417346 A CN 101417346A CN A2008102357431 A CNA2008102357431 A CN A2008102357431A CN 200810235743 A CN200810235743 A CN 200810235743A CN 101417346 A CN101417346 A CN 101417346A
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Abstract
A kind of cemented carbides indexable turning rough boring cutter contains cutter hub, blade, and blade is fixed on the cutter hub, and blade is a parallelogram, and two blades are one group, and totally two groups, every group of blade is by 180 ° of symmetric arrangement on cutter hub.Two groups of blades are provided with on cutter hub vertically, the main cutting edge of last group of blade is the rimmer knife sword, the main cutting edge of the one group of blade in back is the short sword sword, the rimmer knife sword of the one group of blade in back center line axial and cutter hub on cutter hub has the back taper of 0.02～0.04mm, and the point of a knife angle of blade is respectively 85-90 ° and 90-95 °.Because blade is by 180 ° of symmetric arrangement on cutter hub, when the knife bar cutting vibration, the possibility of blade tipping significantly reduces, thereby, do not need to reduce the amount of feeding, can improve operating efficiency by normal amount of feeding processing.Adapt to big surplus boring processing, maximum can adapt to the processing of monolateral 12mm surplus.
Description
Technical field:
The present invention relates to machining tool, be specially a kind of cemented carbides indexable turning rough boring cutter.
Background technology:
Engineering machinery class part much is a structural member.The part poor rigidity, allowance is big, and as the boring in each hole on the parts such as the forward and backward vehicle frame of loading machine, at present, the welding procedure level can only guarantee the monolateral 5～7mm of bore hole allowance, offset 3～5mm, actual monolateral surplus 8～12mm.Fast development along with engineering machinery, vital part all adopts special purpose machine tool to process in enormous quantities on these engineering machinery, finish on cutter same by thick right boring hole two procedures in its hole that requires the 8-9 class precision, be that the heavy boring cutter is installed in knife bar foremost, fine boring cutter is placed on heavy boring cutter back, therefore the boring cutter bar of this cutter must design very longly, when some requires heavy boring cutter bore hole, reaches 6～7 times of footpaths of bore diameter; Because the monolateral surplus in right boring hole can not be too big, the general monolateral 0.5mm that is not more than, therefore, maximum monolateral will the reaching about 12mm of rough bore cutter allowance could be satisfied the processing request of lathe.At present, more employing is multiple tooth ladder boring cutter on this type of lathe, promptly 3 above cutters tooth circumferentially are installed at boring cutter, but because the boring cutter bar draw ratio has surpassed 4 times of footpaths, therefore, there is the problem of shake cutter in this boring cutter, solution when it uses on lathe mainly is: 1. adopt the indexable ladder heavy boring of high-speed steel cutter, because the shock resistance of high-speed steel is good, therefore avoided the problem of the blade tipping that causes because of the shake cutter, but it can't resolve the rough bore center problem of unstable that the vibration because of knife bar causes, certainly exist the problem of inclined to one side boring during the right boring hole, therefore, also need to improve the allowance in right boring hole, right boring hole surplus is bigger than normal, the precision in right boring hole is difficult to guarantee, because the cutting speed of high-speed steel is low, generally is 1/4～1/3 of carbide alloy, therefore adopt this kind method, the cutter working (machining) efficiency is lower; 2. when adopting multiple tooth carbide alloy ladder bore hole blade to carry out rough bore, by reducing the amount of feeding of cutter, improve the tool cutting edge angle of Tool in Cutting, reduce shake cutter intensity, therefore adopt this kind method, there are rough bore center problem of unstable and the low problem of cutter working (machining) efficiency equally, in order to improve the tool cutting edge angle of Tool in Cutting, often adopt 80 ° of diamond shaped insert, the point of a knife number of use has only two, therefore, use the blade cost higher.
Summary of the invention:
The object of the invention is to overcome the deficiencies in the prior art, and a kind of cemented carbides indexable turning rough boring cutter that adapts to the big surplus boring processing in hole is provided.
Solution of the present invention is: contain cutter hub, blade, blade is fixed on the cutter hub, and blade is a parallelogram, and two blades are one group, and totally two groups, every group of blade is by 180 ° of symmetric arrangement on cutter hub.Because blade is by 180 ° of symmetric arrangement on cutter hub, when the knife bar cutting vibration, the possibility of blade tipping significantly reduces, thereby, do not need to reduce the amount of feeding, can improve operating efficiency by normal amount of feeding processing.
Two groups of blades are provided with on cutter hub vertically, and the main cutting edge of last group of blade is the rimmer knife sword, and the main cutting edge of the one group of blade in back is the short sword sword.
The rimmer knife sword of the one group of blade in back center line axial and cutter hub on cutter hub has the back taper of 0.02～0.04mm.Make the one group of blade in back realize leading certainly bore hole, thereby make the center stability of bore hole improve.
The point of a knife angle of blade is respectively 85--90 ° and 90--95 °.
Beneficial effect of the present invention: adapt to big surplus boring processing, maximum can adapt to the processing of monolateral 12mm surplus.Last group of blade point of a knife can use twice, after being used to complete, can be placed on the back and can use twice equally for one group, and therefore, four points of a knife of same blade all can fully use, and the blade use cost is lower.Solved effectively because of problems such as shake cutter the blade tipping, bore hole center instability, the blade cost that cause are higher, improved operating efficiency.
Description of drawings:
Below in conjunction with accompanying drawing embodiments of the invention are elaborated.
The structural representation of Fig. 1 embodiment of the invention;
The vertical view of Fig. 2 embodiment of the invention.
1----cutter hub among the figure; The 2----blade; 3----key piece; The 4----knife bar; The 5----edge bearing; The 6----screw; 7----rimmer knife sword; 8----short sword sword; The 9----blade; 10----rimmer knife sword.
The specific embodiment:
In Fig. 1, contain cutter hub 1, two groups of blades 2 are arranged on the cutter hub 1,9, two groups of blades 2,9 are fixed on the cutter hub 1 by screw 6, cutter hub 1 and two groups of blades 2, edge bearing 5 is arranged between 9, two groups of blades 2,9 is parallelogram, two groups of blades 2,9 respectively by 180 ° of symmetric arrangement on cutter hub 1, two groups of blades 2,9 are provided with on cutter hub 1 vertically, the main cutting edge of last group of blade 2 is a rimmer knife sword 7, and maximum cut is 8～10mm, and the main cutting edge of the one group of blade 9 in back is a short sword sword 8, cutting output is 2～4mm, and the rimmer knife sword 10 of the one group of blade 9 in back center line axial and cutter hub 1 on cutter hub 1 has the back taper of 0.02～0.04mm.Cutter hub 1 location adopts the face of cylinder and end face to locate simultaneously, and two key pieces 3 are adopted in the location of the direction that rotates in a circumferential direction.
Among Fig. 2, by screw 6 fastening being installed on the cutter hub 1, the bore size of the one group of blade 9 in back is greater than the bore size of last group of blade 2 by edge bearing 5 for two groups of blades 2,9.
Adopting the present invention to adapt to is installed on the bigger knife bar of draw ratio 4, be applicable to the bore hole of machined steel structural member, the heavy boring surplus is big, processing is steady, working (machining) efficiency is high, can solve the blade tipping problem that causes because of the shake cutter, and the bore hole positional precision is stable, the blade use cost is low.
Claims (4)
1, a kind of cemented carbides indexable turning rough boring cutter contains cutter hub, blade, and blade is fixed on the cutter hub, it is characterized in that: blade is a parallelogram, and two blades are one group, and totally two groups, every group of blade is by 180 ° of symmetric arrangement on cutter hub.
2, a kind of cemented carbides indexable turning rough boring cutter according to claim 1 is characterized in that: two groups of blades are provided with on cutter hub vertically, and the main cutting edge of last group of blade is the rimmer knife sword, and the main cutting edge of the one group of blade in back is the short sword sword.
3, a kind of cemented carbides indexable turning rough boring cutter according to claim 2 is characterized in that: the rimmer knife sword of the one group of blade in back center line axial and cutter hub on cutter hub has the back taper of 0.02～0.04mm.
4, a kind of cemented carbides indexable turning rough boring cutter according to claim 3 is characterized in that: the point of a knife angle of blade is respectively 85--90 ° and 90--95 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102357431A CN101417346A (en) | 2008-11-27 | 2008-11-27 | A kind of cemented carbides indexable turning rough boring cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102357431A CN101417346A (en) | 2008-11-27 | 2008-11-27 | A kind of cemented carbides indexable turning rough boring cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101417346A true CN101417346A (en) | 2009-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008102357431A Pending CN101417346A (en) | 2008-11-27 | 2008-11-27 | A kind of cemented carbides indexable turning rough boring cutter |
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| CN (1) | CN101417346A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103506638A (en) * | 2012-06-18 | 2014-01-15 | 襄阳博亚精工机器有限公司 | Cutter for numerical control machine tool |
| CN105397124A (en) * | 2015-12-30 | 2016-03-16 | 广西玉柴机器股份有限公司 | Blade reuse tool and method |
| CN107378007A (en) * | 2017-07-26 | 2017-11-24 | 衡阳鸿菱石油管材有限责任公司 | A kind of special buckle processing composite knife bar |
| CN109604697A (en) * | 2019-01-15 | 2019-04-12 | 常德市中天精密工具有限公司 | A kind of cutter head using discarded cutter |
| CN109759623A (en) * | 2019-03-01 | 2019-05-17 | 中信戴卡股份有限公司 | Rear steering section center hole machined gang tool and its processing method |
-
2008
- 2008-11-27 CN CNA2008102357431A patent/CN101417346A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103506638A (en) * | 2012-06-18 | 2014-01-15 | 襄阳博亚精工机器有限公司 | Cutter for numerical control machine tool |
| CN105397124A (en) * | 2015-12-30 | 2016-03-16 | 广西玉柴机器股份有限公司 | Blade reuse tool and method |
| CN105397124B (en) * | 2015-12-30 | 2017-10-10 | 广西玉柴机器股份有限公司 | A kind of nonexpondable frock of blade and method |
| CN107378007A (en) * | 2017-07-26 | 2017-11-24 | 衡阳鸿菱石油管材有限责任公司 | A kind of special buckle processing composite knife bar |
| CN109604697A (en) * | 2019-01-15 | 2019-04-12 | 常德市中天精密工具有限公司 | A kind of cutter head using discarded cutter |
| CN109604697B (en) * | 2019-01-15 | 2021-08-13 | 常德市中天精密工具有限公司 | Tool bit using waste tools |
| CN109759623A (en) * | 2019-03-01 | 2019-05-17 | 中信戴卡股份有限公司 | Rear steering section center hole machined gang tool and its processing method |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090429 |