CN1872472A - Dedicated reamer made from magnesium alloy for cabinet of speed changer - Google Patents
Dedicated reamer made from magnesium alloy for cabinet of speed changer Download PDFInfo
- Publication number
- CN1872472A CN1872472A CN 200610054405 CN200610054405A CN1872472A CN 1872472 A CN1872472 A CN 1872472A CN 200610054405 CN200610054405 CN 200610054405 CN 200610054405 A CN200610054405 A CN 200610054405A CN 1872472 A CN1872472 A CN 1872472A
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- blade
- magnesium alloy
- reamer
- cutter head
- gearbox body
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Abstract
A special reamer for the speed varying box has 4 hard alloy blades welded onto the reamer body uniformly. The parameters of the head of said reamer are as follows: working diameter is 13.018 mm, the diameter for the small end of reversecone is 13.013 mm, the working length is 12 mm, etc.
Description
Technical field
The invention belongs to the machine tools field, particularly a kind of reamer that is exclusively used in the processing magnesium alloy mission case.
Background technology
Mission case is thin-walled, profiled piece product, and profile is bigger, and the product required precision is higher, and the material of mission case adopts pack alloy, the little φ 13 of the diameter of its assembling and positioning pin-and-hole at present
0 + 0.018(two) adopt reamer processing usually.
Magnesium alloy has high strength ratio, ratio of rigidity, vibration damping, thermal conductivity, machinable and recuperability, thereby is called as " green " engineering material of 21 century.Because magnesium alloy has above advantage, enters several big automobile factorys such as U.S.'s nineties, Germany, West Europe, uses magnesium alloy substitution of Al alloy and steel in succession, improves automotive performance.
After changing the material of mission case into magnesium alloy, can alleviate the weight of casing, and compactness is good.If adopt above-mentioned aluminum alloy materials processing method, because magnesium alloy for cabinet of speed changer will carry out the surface maintenance oxidation after processing, and the hardness of magnesium alloy material is lower than aluminium alloy, mechanical strength is again greater than aluminium alloy, very easily produce resilience after the fraising, the aperture is less than normal, causes product defective.
Technology contents
Purpose of the present invention provides a kind of magnesium alloy gearbox body special reamer.It can address the above problem, and makes the aperture of processing meet technological requirement, has processing effect good, the advantage that product percent of pass is high.
Realize that technical scheme of the present invention is:
Magnesium alloy gearbox body special reamer is welded with carbide chip on the cutter hub, blade is the quartering and evenly distributes on the cutter head circumference, the diameter of phi of cutter head working size
1Be 13.018
-0.005 0Mm,, back taper end diameter Φ
2Be 13.013
-0.005 0Mm, the back taper of cutter head working portion are every 100mm length 0.04mm, and the active length b of blade is 12mm, and the guiding tapering of blade is 1 * 45 °, and helixangle is 3 °; It is 90 ° that the teeth groove of blade cuts the shape angle theta, and back of tooth width c is 0.1～0.2mm, and the anterior angle γ of blade is 3-5 °, and the relief angle α of blade is 12～15 °, and tool back clearance λ is 20 °.
12～15 ° of the relief angle α of blade, the anterior angle γ of blade is 3-5 °, processing effect is better.
Adopt technique scheme, the relief angle of reamer blade is strengthened, back of tooth width reduces, and can reduce distortion, and the resilience in the aperture of processing is little; In addition, the working size diameter of phi of this reamer
1Be 13.018-0.0050mm, be limited to the upper limit in the aperture of converted products on the reamer, can remedy a part of resilience.Therefore, adopt this reamer, the product percent of pass height.
Relief angle strengthens, and anterior angle strengthens, and helixangle is 3 °, and the cutting lay distortion reduces, and frictional force reduces, and helps the discharge of magnesium chips, reduces the generation of built-up edge, also helps the heat radiation in the process, also helps the assurance of dimensional accuracy and surface roughness.
The present invention can satisfy the technological requirement of magnesium alloy casing aperture processing, has solved with reamer processing magnesium alloy mission case dowel hole and has produced resilience, and the aperture is less than normal, and the underproof problem of product is used through Chang'an company, and product percent of pass reaches 100%.
The present invention is further illustrated below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 is the structure diagram of magnesium alloy gearbox body special reamer;
Fig. 2 is the enlarged drawing of A-A rotation direction among Fig. 1;
Fig. 3 be among Fig. 1 along B-B to cutaway view;
The enlarged drawing of C portion among Fig. 1 during Fig. 4.
The specific embodiment
With edge alloy machine taper-shank reamer is the example explanation.
The cutter hub and the blade of this magnesium alloy gearbox body special reamer are welded, and blade section adopts Hardmetal materials YG6X, and cutter hub adopts 9SiCr, and cutter hub hardness is 38～43HRC, and blade is the quartering and evenly distributes on the cutter head circumference.
Referring to Fig. 1,2,3,4.This magnesium alloy gearbox body special reamer, the length a of blade are 15mm, and width c is 1.3mm, and active length b is 12mm, to increase the smear metal working portion of blade.
The diameter of phi of cutter head working size
1Be 13.018
-0.005 0Mm, cutter head back taper end diameter Φ
2Be 13.013
-0.005 0Mm, the back taper of cutter head working portion are every 100mm length 0.04mm, and the helixangle of blade is 3 °, makes cutter head tapered, be convenient to reamer and reduce friction between cutter hub and the machined surface when machining, thereby guarantee the dimensional accuracy and the surface roughness in aperture.
The guiding tapering of blade is 1 * 45 °, and the relief angle α of blade is 15 °, and tool back clearance λ is 20 °, and the surface roughness of relief angle is 0.4.
It is 90 ° that the teeth groove of blade cuts the shape angle theta, and back of tooth width d is 0.1～0.2mm, and the height H that preceding cutter hub stretches out is 2.5mm, and the height h of rake face is 1.0～1.5mm, and the roughness of anterior angle is 0.8, and the anterior angle γ of blade is 5 °.Relief angle strengthens, and back of tooth width reduces, and can reduce distortion, and the resilience in the aperture of processing is little.
During work, this reamer with the method that reamer is installed usually, is installed on the drilling machine, starts drilling machine, get final product according to the aperture on the usual way processing magnesium alloy mission case.
This reamer is mainly used in that the aperture is φ 13 on the processing engine speed changer casing
0 + 0.018, the degree of depth is 7.5mm, and hole wall is thick to be the stepped hole of 5mm, and the datum hole diameter of stepped hole is φ 9.5mm, adding the guide cone that can not adopt man-hour than long, is 1 * 45 ° so adopt the guiding tapering of blade.
Reamer of the present invention can be used for the process tool in other aperture of magnesium alloy for cabinet of speed changer, is applicable to all magnesium alloy materials and will carries out the processing in the product hole of surface maintenance oxidation processes, and effect similarly, as described above.
Claims (3)
1. a magnesium alloy gearbox body special reamer is welded with carbide chip on the cutter hub, and blade is the quartering and evenly distributes on the cutter head circumference, it is characterized in that: the diameter of phi of cutter head working size
1Be 13.018
0 -0.005Mm, back taper end diameter Φ
2Be 13.0013
0 -0.005Mm; The active length b of blade is 12mm, and the guiding tapering of blade is 1 * 45 °, and helixangle is 3 °; The back of tooth width c of blade is 0.1～0.2mm, and the anterior angle γ of blade is 3-5 °; The relief angle α of blade is 12～15 °, and tool back clearance λ is 20 °.
2. magnesium alloy gearbox body special reamer according to claim 1 is characterized in that: it is 90 ° that the teeth groove of blade cuts the shape angle theta
3. magnesium alloy gearbox body special reamer according to claim 1 is characterized in that: the back taper of cutter head working portion is every 100mm length 0.04mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100544059A CN100396413C (en) | 2006-06-30 | 2006-06-30 | Dedicated reamer made from magnesium alloy for cabinet of speed changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100544059A CN100396413C (en) | 2006-06-30 | 2006-06-30 | Dedicated reamer made from magnesium alloy for cabinet of speed changer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1872472A true CN1872472A (en) | 2006-12-06 |
| CN100396413C CN100396413C (en) | 2008-06-25 |
Family
ID=37483161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100544059A Expired - Fee Related CN100396413C (en) | 2006-06-30 | 2006-06-30 | Dedicated reamer made from magnesium alloy for cabinet of speed changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100396413C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103692000A (en) * | 2014-01-09 | 2014-04-02 | 安庆市振发汽车锻件有限责任公司 | Drilling tool for forming R type center hole by one step |
| CN103737112A (en) * | 2013-12-20 | 2014-04-23 | 无锡雨田精密工具有限公司 | Tapered threaded bottom hole reamer |
| CN111201103A (en) * | 2017-10-12 | 2020-05-26 | 联合材料公司 | Rotary cutting tool |
| CN113478015A (en) * | 2021-07-19 | 2021-10-08 | 重庆渝江压铸有限公司 | New energy motor shell bearing hole machining process |
| CN114669977A (en) * | 2022-04-28 | 2022-06-28 | 湖北华强科技股份有限公司 | New crown vaccine film-coated bottle stopper vulcanization mold and manufacturing method |
| CN114714093A (en) * | 2022-04-13 | 2022-07-08 | 长城汽车股份有限公司 | Reaming and milling composite cutter |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4050840A (en) * | 1975-04-01 | 1977-09-27 | Acme-Cleveland Corporation | Radially adjustable rotary cutting tool |
| JPH02106210A (en) * | 1988-10-14 | 1990-04-18 | Sumitomo Electric Ind Ltd | Helical tooth polycrystalline diamond tool and manufacture thereof |
| CN2043539U (en) * | 1989-01-07 | 1989-08-30 | 王玉林 | High finish reamer |
| CA2089121C (en) * | 1992-03-09 | 1998-08-04 | Steven J. Brox | Diamond film cutting tool |
| JPH08155736A (en) * | 1994-12-08 | 1996-06-18 | Honda Motor Co Ltd | Rotating cutting tool |
| DE19729644B4 (en) * | 1997-07-10 | 2007-07-26 | August Beck Gmbh & Co | Rotating shank tool and method of making and using an insert |
| CN1087670C (en) * | 1998-12-03 | 2002-07-17 | 董日吾 | High-speed and high-accurcy durable reamer |
| CN2734391Y (en) * | 2004-09-09 | 2005-10-19 | 扬动股份有限公司 | Single-edge reamer |
| CN2788946Y (en) * | 2005-04-30 | 2006-06-21 | 吴俊� | Hard alloy inner hole burring reamer |
| CN200951475Y (en) * | 2006-06-30 | 2007-09-26 | 重庆长安汽车股份有限公司 | Magnesium alloy gear box specially used reamer |
-
2006
- 2006-06-30 CN CNB2006100544059A patent/CN100396413C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103737112A (en) * | 2013-12-20 | 2014-04-23 | 无锡雨田精密工具有限公司 | Tapered threaded bottom hole reamer |
| CN103692000A (en) * | 2014-01-09 | 2014-04-02 | 安庆市振发汽车锻件有限责任公司 | Drilling tool for forming R type center hole by one step |
| CN111201103A (en) * | 2017-10-12 | 2020-05-26 | 联合材料公司 | Rotary cutting tool |
| CN113478015A (en) * | 2021-07-19 | 2021-10-08 | 重庆渝江压铸有限公司 | New energy motor shell bearing hole machining process |
| CN113478015B (en) * | 2021-07-19 | 2023-02-24 | 重庆渝江压铸有限公司 | New energy motor shell bearing hole machining process |
| CN114714093A (en) * | 2022-04-13 | 2022-07-08 | 长城汽车股份有限公司 | Reaming and milling composite cutter |
| CN114669977A (en) * | 2022-04-28 | 2022-06-28 | 湖北华强科技股份有限公司 | New crown vaccine film-coated bottle stopper vulcanization mold and manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100396413C (en) | 2008-06-25 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080625 Termination date: 20160630 |
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| CF01 | Termination of patent right due to non-payment of annual fee |