CN102848156A - Processing method of middle flange of transmission shaft - Google Patents
Processing method of middle flange of transmission shaft Download PDFInfo
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- CN102848156A CN102848156A CN2012103576057A CN201210357605A CN102848156A CN 102848156 A CN102848156 A CN 102848156A CN 2012103576057 A CN2012103576057 A CN 2012103576057A CN 201210357605 A CN201210357605 A CN 201210357605A CN 102848156 A CN102848156 A CN 102848156A
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- middle flange
- transmission shaft
- intermediate bead
- processing method
- endoporus
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Abstract
The invention discloses a processing method of a middle flange of a transmission shaft, which comprises the steps that: firstly, the outer surface of the middle flange is processed to the designed diameter by a lathe; secondly, an inner bore of the middle flange is processed to be d-1 mm in size by a boring mill; thirdly, the outer surface of the middle flange is subjected to induction hardening by a hardening device; fourthly, the size of the inner bore of the middle flange is processed to the designed diameter d by the boring mill; and fifthly, internal splines are formed at the inner bore of the middle flange by a broaching machine. The hardening device is an induction hardening device. With the adoption of the processing method of the middle flange of the transmission shaft, the induction hardening requirements of the outer surface are met, the sizes of the internal splines of the middle flange remain the same, the qualification rate reaches 100%, the production cost is reduced greatly, the production efficiency is improved, the part assembly is more convenient, and the market competitiveness of products is improved greatly.
Description
Technical field
The present invention relates to the power transmission shaft processing technique field, especially a kind of power transmission shaft intermediate bead processing method.
Background technology
As shown in Figure 1, existing power transmission shaft intermediate bead comprises the outer surface 1 of diameter D and the endoporus 2 of diameter d, and endoporus 2 places are provided with internal spline 3.
The internal spline process of existing power transmission shaft intermediate bead is: first step is with broaching tool the internal spline 3 of part to be pulled into shape; Second step is that the outer surface 1 to middle bead carries out induction hardening.The defective that existing processing method exists is: because heat must be to internal spline 3 conduction after 1 heating of intermediate bead outer surface, therefore cause internal spline 3 temperature distortions, internal spline 3 shrinks 0.2～0.3mm after the cooling, thus the impact assembling, percent defective reaches 20%, has greatly improved production cost.
For the rate of reducing the number of rejects and seconds, reduce production costs, improve the competitiveness of product in market, those skilled in the art should have motivation the process of above-mentioned " heating quenching behind the first garland key " to be adjusted into " first heating quenching post-tensioning spline ", but the routinely understanding of having violated those skilled in the art owing to this adjustment thinking is considered to infeasible.Described routinely understanding specifically refers to: quenching can cause the workpiece hardening; If first heating quenching, heat can conduct by internal spline be drawn from middle bead outer surface 1 to intermediate bead when then quenching, make this place's temperature distortion and hardening (internal spline 3 temperature distortions cause the high reason place of percent defective just in the existing production method), thereby can't use broaching tool to process; Even if use reluctantly broaching tool to process, also can significantly reduce production efficiency, raising production cost because broaching tool damages to change again and again.This routinely understanding is so that those skilled in the art when facing " eliminate percent defective, reduce production costs " this technical problem, can think that it is infeasible production process being adjusted into " first heating quenching post-tensioning spline ".
" elimination percent defective " will inevitably produce high economic benefit, and this all has the very strong profit property led for the producer of any power transmission shaft intermediate bead.But since in the art still nobody recognize the above-mentioned routinely wrong part of understanding, thereby the processing method that above-mentioned routinely understanding is eliminated the percent defective of power transmission shaft intermediate bead never appears breaking through in decades.
Summary of the invention
The object of the present invention is to provide a kind of power transmission shaft intermediate bead processing method of the rate of can significantly reducing the number of rejects and seconds.
For achieving the above object, power transmission shaft intermediate bead processing method of the present invention is carried out successively according to the following steps: the firstth, and use lathe that the intermediate bead outer surface is worked into the intended diameter dimension D; The secondth, use boring machine that intermediate bead endoporus dimensioned is arrived the d-1 millimeter; The 3rd is to use quenching unit that middle bead outer surface is carried out impewdance matching; The 4th be use boring machine with intermediate bead endoporus dimensioned to intended diameter d; The 5th is to use broaching machine to pull out internal spline at intermediate bead endoporus place.
Described quenching unit is induction hardening equipment.
After adopting power transmission shaft intermediate bead processing method of the present invention, intermediate bead had both guaranteed the impewdance matching requirement of outer surface, the size that has yet guaranteed simultaneously the intermediate bead internal spline does not change, qualification rate reaches 100%, significantly reduced production cost, improved production efficiency, Assembly of the parts is also convenient simultaneously, has greatly improved the competitiveness of product in market.
Description of drawings
Fig. 1 is the structural representation of power transmission shaft intermediate bead among the present invention.
The specific embodiment
As shown in Figure 1, power transmission shaft intermediate bead processing method of the present invention is carried out successively according to the following steps:
The firstth, use lathe the dimensioned of intermediate bead outer surface 1 to intended diameter dimension D (such as φ 50, namely diameter is 50 millimeters); The secondth, use boring machine intermediate bead endoporus 2 dimensioned to d-1 millimeter (d is the intended diameter of intermediate bead endoporus, such as φ 34); The 3rd is to use induction hardening equipment that middle bead outer surface 1 place is carried out impewdance matching; The 4th be use boring machine with intermediate bead endoporus 2 dimensioned to intended diameter d(such as φ 35); The 5th is to use broaching machine to pull out internal spline 3 at intermediate bead endoporus 2 places with broaching tool.
After adopting power transmission shaft intermediate bead processing method of the present invention, intermediate bead had both guaranteed the impewdance matching requirement at outer surface 1 place, the size that has yet guaranteed simultaneously intermediate bead internal spline 3 does not change, qualification rate reaches 100%, significantly reduced production cost, improved production efficiency, Assembly of the parts is also convenient simultaneously, has greatly improved the competitiveness of product in market.In addition, because the processing of intermediate bead endoporus 2 was divided into for two stages, two stages are respectively in the front and back of quenching step, and substantially endoporus 2 is shaped previous stage (aperture is worked into the d-1 millimeter), the latter half only is a small amount of fine finishining, therefore both had and processed first the characteristic that makes things convenient for that then endoporus 2 quench in the past, can guarantee again completion of processing after endoporus 2 have accurate intended diameter.
The research and development explanation:
For the rate of reducing the number of rejects and seconds, reduce production costs, improve the competitiveness of product in market, the inventor of present patent application has thoroughly studied the in the past high reason of production method percent defective, and seeks by every means to eliminate the method for percent defective.Seeking to solve in the process of " thereby the rate of reducing the number of rejects and seconds reduces production costs " this technical problem just, the inventor of present patent application has run into the described routinely understanding of background technology part, and namely " quenching can cause the workpiece hardening; If first heating quenching, heat can conduct by internal spline 3 be drawn from middle bead outer surface 1 to intermediate bead when then quenching, make this place's temperature distortion and hardening (internal spline 3 temperature distortions cause the high reason place of percent defective just in the existing production method), thereby can't use broaching tool to process; Even if use reluctantly broaching tool to process, also can significantly reduce production efficiency, raising production cost because broaching tool damages to change again and again ".
Because the process midium or long term in seeking other solutions is obstructed, the inventor of present patent application repeatedly studies this and is familiar with routinely, and pass through creative work, finally find that by the mode of verification experimental verification this understanding is not exclusively correct, wrong part wherein is: draw this place (hardening) phenomenon of can quenching by endoporus 2 spline place temperature distortions.In fact, the material temperature distortion at workpiece internal spline 3 places is not equal to this place (hardening) phenomenon of can quenching, behind the surface of the work impewdance matching, on the one hand can quench (hardening) phenomenon, on the other hand workpiece depths (being internal spline 3 places) the generation deformation of can being heated of surface of the work.So long as not deliberately pursuing whole workpiece is quenched and quenching position and hardening heat etc. are carried out conventional strict control (after the constraint that has broken through above-mentioned routinely understanding, this control is those skilled in the art's conventional technical ability), internal spline 3 places (positions of endoporus 2 surperficial internal splines to be processed) are although can produce certain temperature distortion phenomenon after can guaranteeing impewdance matching, and this position can not produce quenching (hardening) phenomenon.
Because the inventor of present patent application has broken through above-mentioned routinely understanding for many years by creative work, just drawn the technical scheme in the present patent application, and produce thus good technique effect, greatly reduce production cost, improved the competitiveness of product in market.
Claims (2)
1. power transmission shaft intermediate bead processing method is characterized in that carrying out according to the following steps successively:
The firstth, use lathe that the intermediate bead outer surface is worked into the intended diameter dimension D;
The secondth, use boring machine that intermediate bead endoporus dimensioned is arrived the d-1 millimeter;
The 3rd is to use quenching unit that middle bead outer surface is carried out impewdance matching;
The 4th be use boring machine with intermediate bead endoporus dimensioned to intended diameter d;
The 5th is to use broaching machine to pull out internal spline at intermediate bead endoporus place.
2. power transmission shaft intermediate bead processing method according to claim 1, it is characterized in that: described quenching unit is induction hardening equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210357605.7A CN102848156B (en) | 2012-09-24 | 2012-09-24 | Processing method of middle flange of transmission shaft |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210357605.7A CN102848156B (en) | 2012-09-24 | 2012-09-24 | Processing method of middle flange of transmission shaft |
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| CN102848156A true CN102848156A (en) | 2013-01-02 |
| CN102848156B CN102848156B (en) | 2014-12-17 |
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| CN201210357605.7A Active CN102848156B (en) | 2012-09-24 | 2012-09-24 | Processing method of middle flange of transmission shaft |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105666073A (en) * | 2016-03-21 | 2016-06-15 | 江苏森威集团飞达股份有限公司 | Machining process for electric-driving axle of new energy bus |
| CN105817847A (en) * | 2016-05-30 | 2016-08-03 | 方雪锋 | Processing technology of middle flange of transmission shaft |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000002251A (en) * | 1998-06-12 | 2000-01-07 | Nippon Seiko Kk | Conical roller bearing |
| CN102534374A (en) * | 2012-02-16 | 2012-07-04 | 无锡市万邦机械制造厂 | Method for processing rectangular-tooth spline sleeve using 42CrMoE high-quality alloy steel as material |
-
2012
- 2012-09-24 CN CN201210357605.7A patent/CN102848156B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000002251A (en) * | 1998-06-12 | 2000-01-07 | Nippon Seiko Kk | Conical roller bearing |
| CN102534374A (en) * | 2012-02-16 | 2012-07-04 | 无锡市万邦机械制造厂 | Method for processing rectangular-tooth spline sleeve using 42CrMoE high-quality alloy steel as material |
Non-Patent Citations (2)
| Title |
|---|
| 彭北山，谢明: "传动轴凸缘内孔产生收缩的原因及改造方法", 《金属热处理》, vol. 30, no. 11, 31 December 2005 (2005-12-31), pages 82 * |
| 陈田兵: "车桥主动锥齿轮凸缘加工工艺的绿化", 《现代零部件》, no. 11, 31 December 2005 (2005-12-31), pages 69 - 70 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105666073A (en) * | 2016-03-21 | 2016-06-15 | 江苏森威集团飞达股份有限公司 | Machining process for electric-driving axle of new energy bus |
| CN105817847A (en) * | 2016-05-30 | 2016-08-03 | 方雪锋 | Processing technology of middle flange of transmission shaft |
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| CN102848156B (en) | 2014-12-17 |
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Inventor after: Li Jianxun Inventor after: Zhang Pengchao Inventor after: Cao Shanjiang Inventor after: Zhang Qingke Inventor after: Li Lei Inventor after: Tang Jimin Inventor after: Gu Xianmei Inventor after: Lei Wuran Inventor after: Chai Ershuai Inventor after: Yao Jinye Inventor after: Guo Yaochuang Inventor after: Chen Yunsheng Inventor after: Qi Ruixiao Inventor after: Ma Xiling Inventor after: Zhang Feng Inventor after: Zhou Yongchuan Inventor after: Han Li Inventor after: Shang Guosheng Inventor after: Zhou Jianxi Inventor after: Zhang Junhua Inventor before: Li Jianxun Inventor before: Ma Xiling Inventor before: Zhang Feng Inventor before: Zhou Yongchuan Inventor before: Chen Yunsheng Inventor before: Han Li Inventor before: Shang Guosheng Inventor before: Wang Wen Inventor before: Zhang Pengchao Inventor before: Su Xiangpei Inventor before: Cao Shanjiang Inventor before: Zhang Junhua Inventor before: Zhang Qingke Inventor before: Zhou Jianxi Inventor before: Shi Caixia |
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Free format text: CORRECT: INVENTOR; FROM: LI JIANXUN WANG WEN ZHANG PENGCHAO SU XIANGPEI CAO SHANJIANG ZHANG JUNHUA ZHANG QINGKE ZHOU JIANXI SHI CAIXIA MA XILING ZHANG FENG ZHOU YONGCHUAN CHEN YUNSHENG HAN LI SHANG GUOSHENG TO: LI JIANXUN CHEN YUNSHENG MA XILING ZHANG FENG ZHOU YONGCHUAN HAN LI SHANG GUOSHENG ZHOU JIANXI ZHANG JUNHUA ZHANG PENGCHAO CAO SHANJIANG ZHANG QINGKE LI LEI TANG JIMIN GU XIANMEI LEI WURAN CHAI ERSHUAI YAO JINYE GUO YAOCHUANG QI RUIXIAO |
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