CN103567272A - Method for driving axle housing tubular product to be wholly hydraulically bugled by pickup truck - Google Patents
Method for driving axle housing tubular product to be wholly hydraulically bugled by pickup truck Download PDFInfo
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- CN103567272A CN103567272A CN201310485277.3A CN201310485277A CN103567272A CN 103567272 A CN103567272 A CN 103567272A CN 201310485277 A CN201310485277 A CN 201310485277A CN 103567272 A CN103567272 A CN 103567272A
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Abstract
A method for driving an axle housing tubular product to be wholly hydraulically bugled by a pickup truck adopts an integral design, and two half axle housings and a triangular embedding block are combined integrally and are designed to be a straight long-axle type axial-symmetry integral tubular housing member, wherein the integral tubular housing member is provided with a spherical shell (for mounting a differential mechanism) in the middle, and cylindrical sections at two sides of the integral tubular housing member are symmetrically reduced; the diameter of an primary tube blank is one thirds of that of a sphere with a bulge in the middle, and cylindrical sections at two sides of the primary tube blank achieve the product demands by reducing; a horizontal bidirectional special hydraulic press and a bulging die with a sliding female die are adopted for bulging twice, the bulging rate is 2.5 every time, and the twice bulging processes are same while the inner pressure of the second bulging process is larger than that of the first bulging process.
Description
Technical field
The present invention relates to a kind of picking-up vehicle driving axle housing tubing integrated hydraulic expanding method.
Technical background
At present, the driving axle housing of picking-up vehicle all adopts stamping welding method to produce.First, with 16MnL steel plate, through blanking, bending operation, strike out two halves axle housing, add set square and insert and be welded into driving axle housing with two halves axle housing.This manufacture method has that stock utilization is low, welding job amount is large, product appearance is bad, and has the defects such as seepage, and product anti-fatigue life is low.
Summary of the invention
The object of the invention is to adopt integrated hydraulic expanding method, develop and have that stock utilization is high, welding job amount is little, product appearance is good, there is no the picking-up vehicle driving axle housing tubing of the defects such as seepage.
For addressing the above problem, this patent main technical schemes is:
1. pair product designs again
For driving axle housing, possesses the axisymmetric geometrical feature of straight major axis and axle housing maximum gauge is the design feature of 3 times of left and right of minimum diameter, adopt global design, two halves axle housing and set square are inserted and be integrated, be designed to have central authorities with spherical (dress differential mechanism) housing, the axisymmetric integral tube hull shape of the straight major axis class part of the symmetrical undergauge of its both sides cylindrical section.
2. preliminary election pipe diameter
When guaranteeing bulging central part housing do not ftracture or attenuation serious, should make bulging ratio is 2.5 left and right, therefore choose initial pipe diameter, is 1/3rd of central bulge sphere diameter, its both sides cylindrical section reaches product requirement by undergauge.
3. liang step bulging process
Adopt horizontal bidirectional special hydraulic press and with the expanding die of slipping matrix, bulging at twice, each bulging ratio is 2.5 left and right.
Bulging for the first time: put into the pipe of counterdie die cavity, first by its inner chamber of two side direction, be filled with hydraulic medium, afterwards, with plunger, seal pipe two ends, simultaneously by both sides to hydraulic medium supercharging.By plunger, apply axial compressive force, on the one hand to hydraulic booster, drive on the other hand slipping matrix to pipe central mobile.When the interior pressure p of hydraulic pressure is more than or equal to the yield stress s of blank tube material, pipe central authorities just start bulging, and in addition, axial compressive force can be ordered about material and be moved to central bulging district, thereby has just realized bulging for the first time while sticking die in pipe central authorities.
Bulging for the second time: change slipping matrix die cavity, repeat equally the technical process of bulging for the first time, but inner pressure ratio is large for the first time, just can obtain total bulging part.
Accompanying drawing explanation
Fig. 1 is bulging structure chart for the first time
Wherein: 1-pipe; 2-die sleeve; 3-slidingtype shaping mould; 4-closed at both ends mould; 5-crush seal post;
Fig. 2 is bulging structure chart for the second time
Wherein: 1-pipe; 2-die sleeve; 3-slidingtype shaping mould; 4-closed at both ends mould; 5-crush seal post;
The specific embodiment
Embodiment 1
Adopt method of the present invention to carry out pipe integrated hydraulic bulging process to the driving axle housing of CA1020 Light-duty Vehicle.Select pipe diameter 110mm, wall thickness 6mm, and axle housing central authorities diameter of the housing is 230mm.Under guaranteeing that bulging is than rational prerequisite, undergauge is to diameter 72mm respectively by the cylindrical section of central housing both sides first to take cold reducing method, and outer end is diameter 50mm.Afterwards, adopt twice bulging of the present invention just can obtain 1 ton of Light-duty Vehicle driving axle housing of integrated welding seam-free.
Claims (1)
1. a picking-up vehicle driving axle housing tubing integrated hydraulic expanding method, is characterized in that technical scheme is:
1) product is designed again
For driving axle housing, possesses the axisymmetric geometrical feature of straight major axis and axle housing maximum gauge is the design feature of 3 times of left and right of minimum diameter, adopt global design, two halves axle housing and set square are inserted and be integrated, be designed to have central authorities with spherical (dress differential mechanism) housing, the axisymmetric integral tube hull shape of the straight major axis class part of the symmetrical undergauge of its both sides cylindrical section;
2) preliminary election pipe diameter
When guaranteeing bulging central part housing do not ftracture or attenuation serious, should make bulging ratio is 2.5 left and right, therefore choose initial pipe diameter, is 1/3rd of central bulge sphere diameter, its both sides cylindrical section reaches product requirement by undergauge;
3) two step bulging process
Adopt horizontal bidirectional special hydraulic press and with the expanding die of slipping matrix, bulging at twice, each bulging ratio is 2.5 left and right;
Bulging for the first time: put into the pipe of counterdie die cavity, first by its inner chamber of two side direction, be filled with hydraulic medium, afterwards, with plunger, seal pipe two ends, simultaneously by both sides to hydraulic medium supercharging; By plunger, apply axial compressive force, on the one hand to hydraulic booster, drive on the other hand slipping matrix to pipe central mobile; When the interior pressure p of hydraulic pressure is more than or equal to the yield stress s of blank tube material, pipe central authorities just start bulging, and in addition, axial compressive force can be ordered about material and be moved to central bulging district, thereby has just realized bulging for the first time while sticking die in pipe central authorities;
Bulging for the second time: change slipping matrix die cavity, repeat equally the technical process of bulging for the first time, but inner pressure ratio is large for the first time, just can obtain total bulging part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310485277.3A CN103567272A (en) | 2013-10-17 | 2013-10-17 | Method for driving axle housing tubular product to be wholly hydraulically bugled by pickup truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310485277.3A CN103567272A (en) | 2013-10-17 | 2013-10-17 | Method for driving axle housing tubular product to be wholly hydraulically bugled by pickup truck |
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| Publication Number | Publication Date |
|---|---|
| CN103567272A true CN103567272A (en) | 2014-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310485277.3A Pending CN103567272A (en) | 2013-10-17 | 2013-10-17 | Method for driving axle housing tubular product to be wholly hydraulically bugled by pickup truck |
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| CN (1) | CN103567272A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103785755A (en) * | 2014-02-28 | 2014-05-14 | 上海理工大学 | Hydraulic manufacturing mold, system and method for a double-channel double-layer pipe |
| CN104368666A (en) * | 2014-11-12 | 2015-02-25 | 哈尔滨汽轮机厂有限责任公司 | Method for expanding spherical connector of oil supply line of gas turbine |
| CN105728539A (en) * | 2016-05-11 | 2016-07-06 | 燕山大学 | Liquid-filling pressing forming die for large-medium automotive axle case pipe fitting |
| CN106807823A (en) * | 2015-11-30 | 2017-06-09 | 上海交运集团股份有限公司 | Frame-type hydraulic pipe fitting bulging device and its method of work |
| CN107537908A (en) * | 2016-06-28 | 2018-01-05 | 无锡卡豹动力科技有限公司 | A kind of forming method of pilot sleeve for transmission for vehicles |
| CN113102624A (en) * | 2021-04-08 | 2021-07-13 | 吉林省车桥汽车零部件有限公司 | Internal expansion high-pressure forming method for special pipe of automobile axle housing |
| CN114669650A (en) * | 2021-12-21 | 2022-06-28 | 倍力汽车轻量化科技(潍坊)有限公司 | Expansion forming process for driving axle housing |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1228362A (en) * | 1998-10-28 | 1999-09-15 | 辽源市重型机器厂 | Vehicle rear axle shell hydraulic expanding-forming process |
| CN1440842A (en) * | 2002-02-27 | 2003-09-10 | 长春汽车材料研究所 | Inner high pressure and reducing formation process of automobile axle shell |
| JP2007050433A (en) * | 2005-08-18 | 2007-03-01 | Honda Motor Co Ltd | Bulging method and die therefor |
| CN101722225A (en) * | 2009-12-08 | 2010-06-09 | 王秀丽 | Novel hydraulic bulging process for tubular parts |
-
2013
- 2013-10-17 CN CN201310485277.3A patent/CN103567272A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1228362A (en) * | 1998-10-28 | 1999-09-15 | 辽源市重型机器厂 | Vehicle rear axle shell hydraulic expanding-forming process |
| CN1440842A (en) * | 2002-02-27 | 2003-09-10 | 长春汽车材料研究所 | Inner high pressure and reducing formation process of automobile axle shell |
| JP2007050433A (en) * | 2005-08-18 | 2007-03-01 | Honda Motor Co Ltd | Bulging method and die therefor |
| CN101722225A (en) * | 2009-12-08 | 2010-06-09 | 王秀丽 | Novel hydraulic bulging process for tubular parts |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103785755A (en) * | 2014-02-28 | 2014-05-14 | 上海理工大学 | Hydraulic manufacturing mold, system and method for a double-channel double-layer pipe |
| CN103785755B (en) * | 2014-02-28 | 2016-01-20 | 上海理工大学 | The hydraulic pressure mfg. moulding die of the double-deck pipe fitting of binary channels, manufacturing system and manufacture method |
| CN104368666A (en) * | 2014-11-12 | 2015-02-25 | 哈尔滨汽轮机厂有限责任公司 | Method for expanding spherical connector of oil supply line of gas turbine |
| CN106807823A (en) * | 2015-11-30 | 2017-06-09 | 上海交运集团股份有限公司 | Frame-type hydraulic pipe fitting bulging device and its method of work |
| CN105728539A (en) * | 2016-05-11 | 2016-07-06 | 燕山大学 | Liquid-filling pressing forming die for large-medium automotive axle case pipe fitting |
| CN107537908A (en) * | 2016-06-28 | 2018-01-05 | 无锡卡豹动力科技有限公司 | A kind of forming method of pilot sleeve for transmission for vehicles |
| CN113102624A (en) * | 2021-04-08 | 2021-07-13 | 吉林省车桥汽车零部件有限公司 | Internal expansion high-pressure forming method for special pipe of automobile axle housing |
| CN114669650A (en) * | 2021-12-21 | 2022-06-28 | 倍力汽车轻量化科技(潍坊)有限公司 | Expansion forming process for driving axle housing |
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Application publication date: 20140212 |