CN103192879B - A kind of job operation of car beam - Google Patents
A kind of job operation of car beam Download PDFInfo
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- CN103192879B CN103192879B CN201310142129.1A CN201310142129A CN103192879B CN 103192879 B CN103192879 B CN 103192879B CN 201310142129 A CN201310142129 A CN 201310142129A CN 103192879 B CN103192879 B CN 103192879B
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- section bar
- car beam
- steel tube
- hollow steel
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Abstract
The present invention relates to vehicular spare parts and make field, particularly a kind of job operation of car beam.The job operation of car beam, comprising: set up a separatist regime by force of arms hollow steel tube profile by pre-set dimension; Predetermined tapering is made at the two ends of the described hollow steel tube section bar after setting up a separatist regime by force of arms; Side two ends to the described hollow steel tube section bar of predetermined tapering is suppressed, and forms the preliminary section bar that cross-sectional plane is setting shape; Curved arc process is carried out to the two ends of described preliminary section bar; Obtain described car beam.The car beam that the job operation of the car beam that the embodiment of the present invention provides is made, compared with traditional method of being welded by two blocks of recessed iron, its maximum feature is the car Liangqi made by the embodiment of the present invention is integrated, does not have weld seam, therefore there will not be the phenomenon of cracking.
Description
Technical field
The present invention relates to vehicular spare parts and make field, specifically, particularly a kind of job operation of car beam.
Background technology
Car chassis usually by transmission system, running device, steering system and brake system four part form.Chassis effect is supporting, installs automotive engine and each parts, assembly, forms the moulded of automobile, and accepts the power of driving engine, makes automobile produce motion, ensures normally to travel; Concrete, the car beam of automobile plays important supporting role in car chassis, the car beam of automobile is arranged on car chassis, and be indirectly connected with the tire at axletree two ends by shock mitigation system, it is for supporting outside whole compartment, can also absorb when automobile collides or energy outside traffic accident, and then ensure the safety of the contained personnel of vehicle.
At present, the job operation of common car beam is all by after the spill iron plate of two same shapes is processed into reservation shape, then is symmetrically welded and forms.
But the car beam made by the job operation of the car beam be symmetrically welded by two channels in correlation technique is under severe road conditions or when there is traffic accident, car beam easily ftractures from weld.
Summary of the invention
The object of the present invention is to provide a kind of job operation of car beam, to solve the above problems.
The job operation of the car beam that the above embodiment of the present invention provides, comprising: set up a separatist regime by force of arms hollow steel tube profile by pre-set dimension; Predetermined tapering is made at the two ends of the described hollow steel tube section bar after setting up a separatist regime by force of arms; Side two ends to the described hollow steel tube section bar of predetermined tapering is suppressed, and forms the preliminary section bar that cross-sectional plane is setting shape; Curved arc process is carried out to the two ends of described preliminary section bar; Obtain described car beam; Car beam job operation provided by the invention, by middle empty steel tube profile is made integrated car beam after setting up a separatist regime by force of arms, make predetermined tapering, first one-step forming, bend pipe process, compared with traditional method of being welded by two blocks of recessed iron, its maximum feature is the car Liangqi made by the embodiment of the present invention is integrated, there is no weld seam, therefore there will not be the phenomenon of cracking.
Accompanying drawing explanation
Fig. 1 shows the flow process chart of the car beam of the embodiment of the present invention one.
Detailed description of the invention
Also by reference to the accompanying drawings the present invention is described in further detail below by specific embodiment.
Please refer to Fig. 1, the job operation of the car beam that the embodiment of the present invention one provides, comprising: step 101: set up a separatist regime by force of arms hollow steel tube profile by pre-set dimension; Step 102: predetermined tapering is made at the two ends of the described hollow steel tube section bar after setting up a separatist regime by force of arms; Step 103: side two ends to the described hollow steel tube section bar of predetermined tapering is suppressed, forms the preliminary section bar that cross-sectional plane is setting shape; Step 104: curved arc process is carried out to the two ends of described preliminary section bar; Obtain described car beam.
Concrete, in embodiment one provided by the invention, in a step 101, with hollow steel tube section bar for preparing material, wherein, in order to ensure that it makes the service property (quality) of car beam, the larger material of rigidity generally chosen by hollow steel tube section bar, meanwhile, hollow steel tube section bar can be preferably the section bar of 16Mn and No. 20 steel (preferably containing Mn); By pre-set dimension, and set up a separatist regime by force of arms; It is pointed out that carrying out smoothly of conveniently subsequent operation, the pre-set dimension of steel pipe should be slightly larger than the size of layout design, like this, causes the phenomenon of undersize after follow-up work can be avoided to form raw material wearing and tearing; In a step 102, according to the profile of the hollow steel tube section bar of step 101, predetermined tapering is made at its two ends; Step 103 and 104, respectively by after first one-step forming and curved arc process, obtains car beam.
In the embodiment of foregoing invention, by the steel tube profile of hollow is made integrated car beam after setting up a separatist regime by force of arms, make predetermined tapering, first one-step forming, elbow process, compared with traditional method of being welded by two pieces of recessed iron plates, its maximum feature is the car beam made by the embodiment of the present invention is integrated, does not deposit weld seam.
In order to the job operation of the car beam of the present invention made has better result of use, the job operation of the car beam that the embodiment of the present invention two is enumerated is the further increase and restriction made on the basis of above-described embodiment one, now elaborates and explains:
Embodiment two
In the above-described embodiments, the cross-sectional plane of hollow steel tube section bar is circular, and namely hollow steel tube section bar is a circular steel pipe, in the process of processing, sequentially obtains car beam finished product by the technique such as taper WEDM, first one-step forming.
Further, after advantageous cross sections is circular hollow steel tube section bar, after setting up a separatist regime by force of arms, can there is burr in its end, so need to carry out rounding to it, concrete, rounding refers to and the corner angle of circular hollow steel tube end part is processed as arc surface, with the needs of satisfied processing part specifications.
Further, after the end rounding of hollow steel tube section bar, with regard to needing, predetermined tapering is made at the two ends of section bar, concrete, can be achieved by the following method:
Described hollow steel tube section bar after setting up a separatist regime by force of arms is placed in a press, and uses many cover tapering moulds that the two ends of described hollow steel tube section bar are pressed into predetermined tapering; The thrust of described compression machine is 400-500 ton.
According to the requirement of car beam oad, the end due to car beam is generally need to be connected with Automobile shaft miscellaneous part, so its end should meet set tapering; Optionally, the processing of end taper is generally realized by compression machine, and usually choosing one direction thrust is 400-500 ton compression machine; Be preferably 500 tons; In the process implemented, preferably 5 cover tapering moulds are sequentially progressively processed.
Further, after the taper WEDM of the end of hollow steel tube section bar is completed, after hollow steel tube profiled ends has predetermined tapering, its density there occurs change, so, in the process of following process, it is easy to the phenomenon occurring pressure break, therefore, in order to ensure hardness and the plasticity of hollow steel tube section bar simultaneously, described hollow steel tube section bar two ends with predetermined tapering carries out temper:
Concrete, so-called temper refers to and is placed in after lower than critical temperature a period of time in leaching by the steel through quench hardening or normalisation process, cools down with certain speed, to increase the one process of the toughness of material; From metallurgy principle, through quenching and normalisation process, a period of time is put in temperature leaching in putting back to, and can impel a part of Carbide Precipitation, have simultaneously and can eliminate a part because cooling the residual stress caused rapidly, therefore can improve the toughness of material with flexible; The effect of obvious temper is decided by drawback temperature, time.
Along with the raising of drawback temperature, the intensity of material and hardness and then reduce, but the ductility of material but improves thereupon.The resistance to punching property of material has one and significantly reduces phenomenon near 600 DEG C of tempering, and this phenomenon is referred to as temper brittleness.Because there are the relation of direct ratio the precipitation of carbon atom or manganese element and time, along with the prolongation of tempering time, the hardness of material can along with reduction.And the temperature of tempering is the transformation point lower than phase change, the intensity of material is relevant with rate of cooling.But due to temper embrittlement, if material is too fast at the rate of cooling between 375 ~ 575 DEG C, easily have brittle phenomenon.
Therefore, in the choosing of section bar, generally dose Mn element in section bar, main purpose increases hardening of steel ability and intensity; Because the diffusivity of Mn element is poor, therefore dose Mn element and also just to have slowed down temper softening speed; By describing above and can finding out, in drawing process, special sections choose and drawback temperature, the processing of the selection of time to car beam finished product are vital; In the present embodiment, drawback temperature controls at 600-700 DEG C; Preferably, drawback temperature is 650 DEG C; Tempering time is 2 hours.
Further, after temper completes, need the section bar being compressed to reservation shape, this step can by using compression machine from multi-aspect pushing the hollow steel tube section bar after described temper, obtain square preliminary section bar, concrete, after obtaining described square preliminary section bar, after section bar is subject to multidirectional extruding, the phenomenon pressed by section bar may be there is in it, therefore, in the present embodiment, also comprise; Use compression machine from the middle part of the square preliminary section bar of multi-aspect extruding, and make the recess of described square preliminary section bar rise flat by setting-out or oil; Or in advance steel ball sand is poured into the inside of described square preliminary section bar, make the recess of described square preliminary section bar rise flat, after steel ball sand being poured into the inside of squared profile, just can play the effect of filling, and then prevent steel tube profile from being pressed.
When section bar be compressed to rectangular tube and keep rising flat after, further curved arc process is carried out in the end of section bar; Concrete,
The two ends of 300 tons of medium frequency pushing machines to described square preliminary section bar can be used to carry out curved arc process; Or use the two ends of mould to described square preliminary section bar to carry out curved arc process; Concrete radian, according to the setting of different products, does not make concrete restriction at this.
After obtaining car beam, in order to ensure the aesthetic measure of product design, shaping can be carried out to car beam, specifically can carry out shaping by using the appearance of multi-aspect compression machine to car beam entirety, in the process of concrete operations, be positioned in mould by car beam, by three or four direction, and the compression machine that the thrust in each direction is 500-1000 ton carries out overall shaping.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a job operation for car beam, is characterized in that, comprising:
By pre-set dimension, hollow steel tube profile is set up a separatist regime by force of arms;
Predetermined tapering is made at the two ends of the described hollow steel tube section bar after setting up a separatist regime by force of arms;
Described hollow steel tube section bar two ends with predetermined tapering carries out temper;
Side two ends to the described hollow steel tube section bar of predetermined tapering is suppressed, and forms the preliminary section bar that cross-sectional plane is setting shape; Described formation cross-sectional plane is that the preliminary section bar of setting shape comprises: use compression machine from multi-aspect pushing the described hollow steel tube section bar after temper, obtain square preliminary section bar;
After obtaining described square preliminary section bar, also comprise: use compression machine from the middle part of the square preliminary section bar of multi-aspect extruding, its two ends make the recess of described square preliminary section bar rise flat by setting-out or oil; Or, steel ball sand is poured into the inside of described square preliminary section bar;
Curved arc process is carried out to the two ends of described preliminary section bar; Obtain described car beam.
2. the job operation of car beam according to claim 1, is characterized in that, in described step of setting up a separatist regime by force of arms hollow steel tube profile by pre-set dimension:
The cross-sectional plane of described hollow steel tube section bar is circular.
3. the job operation of car beam according to claim 2, is characterized in that, after the step of setting up a separatist regime by force of arms hollow steel tube profile by pre-set dimension, before the step of predetermined tapering is made at the two ends of the described hollow steel tube section bar after setting up a separatist regime by force of arms, also comprises:
To the end rounding of described hollow steel tube section bar.
4. the job operation of car beam according to claim 3, is characterized in that, makes in the step of predetermined tapering, comprising at the described two ends by the described hollow steel tube section bar after setting up a separatist regime by force of arms:
Described hollow steel tube section bar after setting up a separatist regime by force of arms is placed in a press, and uses many cover tapering moulds that the two ends of described hollow steel tube section bar are pressed into predetermined tapering;
The thrust of described compression machine is 400-500 ton.
5. the job operation of car beam according to claim 4, is characterized in that,
The temperature of described temper is 600-700 DEG C;
The time of described temper is 2 hours.
6. the job operation of car beam according to claim 1, is characterized in that, carries out curved arc process at the described two ends to described preliminary section bar; Obtain in the step of described car beam; Comprise:
The two ends of 300 tons of medium frequency pushing machines to described square preliminary section bar are used to carry out curved arc process.
7. the job operation of car beam according to claim 1, is characterized in that, carries out curved arc process at the described two ends to described preliminary section bar; Obtain, in the step of described car beam, comprising:
The two ends of mould to described square preliminary section bar are used to carry out curved arc process.
8. the job operation of the car beam according to any one of claim 1-7, is characterized in that, is carrying out curved arc process to the two ends of described preliminary section bar; After obtaining the step of described car beam; Also comprise:
The side surface of multi-aspect compression machine to described car beam is used to carry out shaping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310142129.1A CN103192879B (en) | 2013-04-22 | 2013-04-22 | A kind of job operation of car beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310142129.1A CN103192879B (en) | 2013-04-22 | 2013-04-22 | A kind of job operation of car beam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103192879A CN103192879A (en) | 2013-07-10 |
| CN103192879B true CN103192879B (en) | 2016-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310142129.1A Active CN103192879B (en) | 2013-04-22 | 2013-04-22 | A kind of job operation of car beam |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3302844A1 (en) * | 2015-06-08 | 2018-04-11 | Constellium Singen GmbH | Precision forming of metallic hollow extrusions |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1293415A1 (en) * | 2001-03-27 | 2003-03-19 | Nippon Steel Corporation | Automobile strengthening member |
| CN1589989A (en) * | 2003-09-04 | 2005-03-09 | 日产自动车株式会社 | Reinforced member |
| CN201633781U (en) * | 2010-04-28 | 2010-11-17 | 河北华宏广源橡塑有限公司 | Car axle body supporting device |
| CN102616278A (en) * | 2012-04-10 | 2012-08-01 | 北京汽车股份有限公司 | Vehicle front fingerboard and forming method thereof |
| CN203172726U (en) * | 2013-04-22 | 2013-09-04 | 刘九文 | Automotive beam |
-
2013
- 2013-04-22 CN CN201310142129.1A patent/CN103192879B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1293415A1 (en) * | 2001-03-27 | 2003-03-19 | Nippon Steel Corporation | Automobile strengthening member |
| CN1589989A (en) * | 2003-09-04 | 2005-03-09 | 日产自动车株式会社 | Reinforced member |
| CN201633781U (en) * | 2010-04-28 | 2010-11-17 | 河北华宏广源橡塑有限公司 | Car axle body supporting device |
| CN102616278A (en) * | 2012-04-10 | 2012-08-01 | 北京汽车股份有限公司 | Vehicle front fingerboard and forming method thereof |
| CN203172726U (en) * | 2013-04-22 | 2013-09-04 | 刘九文 | Automotive beam |
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| Publication number | Publication date |
|---|---|
| CN103192879A (en) | 2013-07-10 |
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Inventor after: Yin Jiuguo Inventor after: Yin Weiguo Inventor before: Liu Jiuwen |
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| COR | Change of bibliographic data | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160129 Address after: 212300 Zhenjiang city of Jiangsu province Danyang city Dan Jinlu No. 988 Mai Village Patentee after: DANYANG LIANCHUANG AUTO ACCESSORIES CO.,LTD. Patentee after: DANYANG LIANCHENG AUTOMOBILE PARTS CO.,LTD. Address before: 102488 Beijing City, Fangshan District Liangxiang North Lu Park A8 Building 2 unit 401 room Patentee before: Liu Jiuwen |
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| CP03 | Change of name, title or address |
Address after: 212399 No. 8, industrial road, high tech Zone, Danyang City, Zhenjiang City, Jiangsu Province Patentee after: Jiangsu Lianchuang Auto Accessories Co.,Ltd. Patentee after: Danyang Liancheng Auto Parts Co., Ltd Address before: No. 988, Maicun section, DanJin Road, Danyang City, Zhenjiang City, Jiangsu Province, 212300 Patentee before: DANYANG LIANCHUANG AUTO ACCESSORIES CO.,LTD. Patentee before: Danyang Liancheng Auto Parts Co., Ltd |
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| CP03 | Change of name, title or address |