CN1206662A - Method for forming axle shaft sleeve of rear-axle of agricultural car - Google Patents
Method for forming axle shaft sleeve of rear-axle of agricultural car Download PDFInfo
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- CN1206662A CN1206662A CN 97115604 CN97115604A CN1206662A CN 1206662 A CN1206662 A CN 1206662A CN 97115604 CN97115604 CN 97115604 CN 97115604 A CN97115604 A CN 97115604A CN 1206662 A CN1206662 A CN 1206662A
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- axle
- forming
- union body
- shaped
- shaft sleeve
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Abstract
The present invention relates to an agricultural automobile rear differential axle tube forming method, belonging to the plastic processing method of automoble parts and components. It is composed of axle tube body and fixing disk. The seamless tube blank is heated by means of intermediate-frequency induction heating process, then axially fed through core mould and squeezed into the rotary die cavity formed from three forming ralls so as to obtain the formed axle tube body, and the workblank is placed into a forming cavity die, and continuously rolled by means of upper rocker head to make its radial enlarge ment and its middle has a hole formed with skin, then it is formed by means of closed upset-forging process so as to obtain the formed fixing disk. Finally, the tube body and fixing disk are press-welded into one body, so that said invented product can be obtained.
Description
The present invention relates to the plastic processing method of auto parts and components.
Because rear-axle tube is the major part on the agricultural vehicle back axle, it bears dynamic vertical load and moment of torsion, belongs to security personnel's part, must adopt forging.At present, the rear-axle tube of agricultural vehicle all adopts integral structure and adopts the free forging process manufacturing.Because the axle tube geometric configuration has two notable features: first entire length is about 3: 1 with the ratio of outside diameter; It two is reaction plate diameters and the ratio of minor diameter is about 3: 1.So adopting hammer to go up die forging still is that free forging process all can not forge intermediate throughholes, forging is round and plump simultaneously.The major defect of solid forging rear-axle tube is: stock utilization low (only being 32%), and a large amount of metals are cut, and waste energy, and forging precision is low, thereby manufacturing cost is strengthened.In addition, labor strength is big, and environmental pollution is serious.
The purpose of this invention is to provide a kind of raising stock utilization and capacity rating, reduce manufacturing cost, the method for forming axle shaft sleeve of rear-axle of agricultural car of improving working conditions.
The object of the present invention is achieved like this: owing to wholely freely be plated to shape and have above-mentioned shortcoming, according to the constructional feature and the performance requriements of this workpiece,, adopt union body (1) and reaction plate (2) split combined shaping as shown in drawings.The manufacturing process of union body (1) is: solid drawn pipe blank (1 ') after Frequency Induction Heating, by core (4) axial feed, is clamp-oned in the rotation die cavity of being made up of three forming rolls (3) and is shaped; The manufacturing process of reaction plate (2) is: blank (2 ') is placed shaping die (6), by the continuous spreading of last yaw (5) it is radially increased, the middle hole that forms the band gross weight is shaped by closed upsetting again; Union body (1) and reaction plate (2) press-fit union body (1) and the reaction plate (2) that is shaped integrally welded after being shaped and finishing.
Because the vitals that axle shaft sleeve of rear-axle of agricultural car is an automobile power to be transmitted, its function is to bear vertical load, and allow semiaxis from the centre empty mistake, be connected transfer torque by reaction plate with back-plate again simultaneously.When therefore this workpiece split being shaped, by theoretical suitable each section diameter of adjusting of equal strength, be convenient to adopt pipe just squeezing and the transverse rolling shaping to reduce drop to union body (1).Reaction plate (2) then becomes annular element, is easy to adopt rotary forging to be shaped.In being press-fited, the two is welded into the rear-axle tube assembly at last.
The product that adopts manufacturing process provided by the invention to produce, entrucking be after stand test examination,, its fatigue life and static strength all meet national sector standard, satisfy customer requirements, can be applicable its remarkable economic and social benefits aborning.With 1 tonne of S2310 farm vehicle is example, and its invention effect is as follows:
(1) the saving in material effect is remarkable: every more whole open die forging formula material-saving 4.1Kg.Stock utilization reaches 57%, improves 25% than open die forging formula.
(2) economize energy.Than open die forging formula energy savings 35%.
(3) save time.Save machine up man-hour 30%.
(4) production efficiency height.Production efficiency improves 2～3 times.
(5) cost is low.Reduce manufacturing cost 33%.
Particular content of the present invention reaches accompanying drawing with the following Examples and further specifies.
Fig. 1 is the axle tube assembly figure that processes according to the method for forming axle shaft sleeve of rear-axle of agricultural car that the present invention proposes.
Fig. 2 is the crowded detail drawing that rolls of union body (1).
Fig. 3 is the just crowded cross rolling process schematic diagram of union body (1).
Fig. 4 is the lateral plan of Fig. 3.
Fig. 5 is the rotary forging shaping schematic diagram of reaction plate (2).
Technological process of the present invention is: union body: pipe blanking → electro heat → just crowded transverse rolling → correction → machinework; Reaction plate: bar blanking → heating → jumping-up → pendulum is rolled over shaping → machinework; Then union body (1) and reaction plate (2) are press-fited weldering again and be one.Detailed process is: used solid drawn pipe blank (1 ') adopts the blanking of S. A. horizontal saw mill, and pipe is by the heating of Frequency Induction Heating lathe afterwards, and it is 1200 ℃ that the beginning is rolled temperature.Just squeezing with the transverse rolling shaping is just to squeeze on the transverse rolling lathe in special use to carry out.It is by core (4) axial feed, and solid drawn pipe blank (1 ') is enclosed within on the core (4), it is clamp-oned in the rotation die cavity of being made up of three forming rolls (3) simultaneously to be shaped.After being shaped, union body (1) needs hot correction small end.The heating, rolling with the correction this three process finish continuously, productive temp is 16 seconds.The manufacturing process of reaction plate (2) is: heating and upsetting forms blank (2 ') after the bar blanking, places molding concave die (6), and closed upsetting moulding is passed through in yaw (5) spreading continuously again.Calibrated rear sleeve body (1) carries out prtreatment on lathe, need to guarantee the dimension limit of the force fit of itself and reaction plate (2) first piece this moment.Change at last and press-fit welding sequence.Press-fiting is to carry out on hydraulic compressor by pressing clamp, and operation is reliable and stable, presses the back with carbon dioxide S. A. protection weldering union body (1) and reaction plate (2) to be welded into the axle tube assembly.
Claims (2)
1, method for forming axle shaft sleeve of rear-axle of agricultural car is characterized in that:
A) manufacturing process of union body (1) is: seamless steel tube blank (1 ') after Frequency Induction Heating, by core (4) axial feed, is clamp-oned in the rotation die cavity of being made up of three forming rolls (3) and is shaped;
B) manufacturing process of reaction plate (2) is: blank (2 ') is placed molding concave die (6), by the continuous spreading of last yaw (5) it is radially increased, the middle hole that forms the band gross weight is shaped by closed upsetting again;
C) press-fit union body (1) and the reaction plate (2) that is shaped integrally welded.
2, method for forming axle shaft sleeve of rear-axle of agricultural car according to claim 1 is characterized in that the solid drawn pipe blank (1 ') that union body (1) is shaped and adopts, and selects for use the big end group of diameter, wall thickness and union body workpiece originally identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97115604 CN1206662A (en) | 1997-07-28 | 1997-07-28 | Method for forming axle shaft sleeve of rear-axle of agricultural car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97115604 CN1206662A (en) | 1997-07-28 | 1997-07-28 | Method for forming axle shaft sleeve of rear-axle of agricultural car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1206662A true CN1206662A (en) | 1999-02-03 |
Family
ID=5173317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97115604 Pending CN1206662A (en) | 1997-07-28 | 1997-07-28 | Method for forming axle shaft sleeve of rear-axle of agricultural car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1206662A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101947634A (en) * | 2010-09-03 | 2011-01-19 | 东风汽车有限公司 | Forging process for flange of half shaft of automobile rear axle |
| CN102513791A (en) * | 2011-12-27 | 2012-06-27 | 十堰园钧工贸有限公司 | Technical method for forming semi-axle housing tube for large-diameter flange |
| CN104249240A (en) * | 2014-03-01 | 2014-12-31 | 张震 | Method for forming semi-axle shaft sleeve of automobile rear axle |
| CN104942540A (en) * | 2015-06-12 | 2015-09-30 | 何庆堃 | Special rolling half-axis casing pipe technology |
| CN104972274A (en) * | 2015-06-16 | 2015-10-14 | 何庆堃 | Special rolling technology of truck half-shaft casing pipes |
| CN107377623A (en) * | 2017-08-25 | 2017-11-24 | 南京锦冠汽车零部件有限公司 | A kind of roller forming technology of automotive axle housing tube three |
-
1997
- 1997-07-28 CN CN 97115604 patent/CN1206662A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101947634A (en) * | 2010-09-03 | 2011-01-19 | 东风汽车有限公司 | Forging process for flange of half shaft of automobile rear axle |
| CN101947634B (en) * | 2010-09-03 | 2012-09-26 | 东风汽车有限公司 | Forging process for flange of half shaft of automobile rear axle |
| CN102513791A (en) * | 2011-12-27 | 2012-06-27 | 十堰园钧工贸有限公司 | Technical method for forming semi-axle housing tube for large-diameter flange |
| CN104249240A (en) * | 2014-03-01 | 2014-12-31 | 张震 | Method for forming semi-axle shaft sleeve of automobile rear axle |
| CN104942540A (en) * | 2015-06-12 | 2015-09-30 | 何庆堃 | Special rolling half-axis casing pipe technology |
| CN104972274A (en) * | 2015-06-16 | 2015-10-14 | 何庆堃 | Special rolling technology of truck half-shaft casing pipes |
| CN107377623A (en) * | 2017-08-25 | 2017-11-24 | 南京锦冠汽车零部件有限公司 | A kind of roller forming technology of automotive axle housing tube three |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| 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 |