CN100484703C - Method for manufacturing elliptic anticollision beam of vehicle - Google Patents
Method for manufacturing elliptic anticollision beam of vehicle Download PDFInfo
- Publication number
- CN100484703C CN100484703C CNB2006100042902A CN200610004290A CN100484703C CN 100484703 C CN100484703 C CN 100484703C CN B2006100042902 A CNB2006100042902 A CN B2006100042902A CN 200610004290 A CN200610004290 A CN 200610004290A CN 100484703 C CN100484703 C CN 100484703C
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- tubing
- pipe
- pipes
- elliptic
- welding
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- 238000000034 method Methods 0.000 title claims description 33
- 238000004519 manufacturing process Methods 0.000 title abstract description 7
- 238000003466 welding Methods 0.000 claims abstract description 13
- 238000005520 cutting process Methods 0.000 claims abstract description 12
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 238000001816 cooling Methods 0.000 claims description 7
- 238000004513 sizing Methods 0.000 claims description 7
- 230000006698 induction Effects 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 4
- 238000009785 tube rolling Methods 0.000 claims description 2
- 230000002265 prevention Effects 0.000 description 14
- 230000008569 process Effects 0.000 description 14
- 239000003550 marker Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000035900 sweating Effects 0.000 description 1
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Abstract
The invention discloses a method for producing elliptic crash-proof bar of vehicle. The cut pipes are expanded and kept in ring-type holder. When the pipes are transported via guide roller, they are marked with batch numbers. The two sides of the pipes are halved jointed. The pipe is formed by modeling roller with uniform thickness tolerance and generating elliptic cross-section, adjusting V-type apical angle to get proper welding condition. The pipes are welded with high frequency sensing heating and cooled to eliminate potential heat. The outer diameter tolerances of each part of the pipe are uniform; and performing correction on pipes to ensure keeping predetermined flatness, and cutting pipes into predetermined length.
Description
Technical field
The present invention relates generally to be used for the method for the elliptic anticollision beam of maker motor-car, and relate more specifically to the method for the elliptic anticollision beam of such maker motor-car, it is designed to as one man make by a small amount of operation the collision prevention girders of the elliptic cross-section with same size.
Background technology
As known in the art, elliptic anticollision beam mainly is installed in the car door of vehicle such as passenger vehicle or bus the distortion of car body when imposing on the car body impulsive force under the minimum collisions situation and damaged and prevent that passenger and driver are injured.
Usually, the following manufacturing of the collision prevention girders of motor vehicle: form the hollow tubular body of making and having circular section by metal (being generally steel), then for example by this hollow tubular body of processing such as heat treatment to satisfy following requirement, show good impact resistance and damping property on this collision prevention girders structure, and do not increase the weight of car body simultaneously in fact.Recently, has advantage aspect a kind of collision prevention girders of present technique field suggestion, its instantaneous strength when collision and shock resistance with oval cross section shape.
In order to guarantee with continuous and economic mode large-scale production collision prevention girders, adopted such method: have standard-sized collision prevention girders by welding manufacturing, and when the conveyer such by for example chain conveying mechanism transmits collision prevention girders, heat-treat continuously by eddy-current heating.
Be used to make in traditional pipe-making method of elliptic anticollision beam, design is also made the round tube format roll so that it has the compact dimensions that the circumference " R " with pipe adapts.Thus, formed finally be used as the oval pipe of elliptic anticollision beam after, this oval pipe carries out eddy-current heating thus with the center of constant speed by circular induction coil on this oval pipe.
Particularly, at the legacy equipment that is used for making collision prevention girders, make up and to be used for heat treatment and finally to be used as the device of pipe of collision prevention girders so that this pipe is mobile and pass through the core of circular induction coil on a horizontal direction simply.When using such conventional apparatus, for pipe, can obtain even heat treated effect to a certain degree with circular cross section.But, have in collision prevention girders under the situation of non-circular transverse cross-section such as oval cross section shape, because the distance between pipe and the induction coil changes according to the position on the circumference of pipe, therefore be difficult in and realize uniform thermal effectiveness on the whole pipe.
That is to say, be designed and make and only have under the situation of the compact dimensions that the circumference " R " with pipe adapts at traditional format roll, if this pipe has the oval cross section shape, then can not be uniformly distributed in when forming this pipe and the irregular internal stress that in this pipe, remains.
Summary of the invention
Therefore, carried out the present invention under the situation of the problems referred to above that in keeping it in mind prior art, occur, purpose of the present invention provides a kind of method that is used for the elliptic anticollision beam of maker motor-car, wherein four or five processing costs rather than processing costs be used to will be finally as the circumference " R " of the pipe of elliptic anticollision beam, so that on the entire cross section of this pipe, be evenly distributed in the irregular internal stress that produces in the process that forms this pipe, and when carrying out cutting action, minimize burr and infringement that tubing is produced, to guarantee good solderability.
In order to achieve the above object, according to the present invention, provide a kind of method of elliptic anticollision beam of maker motor-car, it comprises: the uncoiling step is used for launching continuously the tubing of cutting and leaves the tubing of this cutting in the ring-type retainer temporarily; The batch markers step, the tubing that leaves in the uncoiling step in the ring-type retainer passes through to support and carry the surface markers lot number of the guide roller of tubing at tubing when the tube rolling body transmits; The edge scarf step, the both sides of this tubing of interlocking under the state that tubing is transmitted with the state that has been labeled lot number; Forming step uses
The tubing that rolling system edge has been rabbeted to be having the homogeneous thickness tolerance and produce oval-shaped shape of cross section, and adjusts the V-arrangement drift angle to the condition that is suitable for welding; Welding and cooling step by the tubing of high-frequency induction heating welding transmission by forming step, and cool off this tubing to remove latent heat; The sizing step, the outer dia tolerance of parts of the pipe of the soldered and cooling of homogenising, and this pipe carried out the glacing flatness of correct operation to guarantee to be scheduled to; And cutting step, will cut into predetermined length by the pipe of sizing step.
Description of drawings
Following detailed above-mentioned and that other purpose, feature and other advantage basis are carried out in conjunction with the accompanying drawings of the present invention can more be expressly understood.
Fig. 1 is illustrative processes figure according to an embodiment of the invention, has shown the method for the elliptic anticollision beam of the schematic structure of tubulation apparatus and maker motor-car;
Fig. 2 is an exemplary perspective view, has shown the major part of the batch marker that uses in the tubulation apparatus according to an embodiment of the invention;
Fig. 3 is an exemplary perspective view, has shown the format roll that uses according in the tubulation apparatus of the present invention.
The specific embodiment
Now will be in more detail with reference to the preferred embodiments of the present invention, shown an one example in the accompanying drawing.In the possibility part, run through drawing and description and all use same reference marker to indicate same or similar part.
Explain the method for the elliptic anticollision beam that is used for the maker motor-car according to an embodiment of the invention below with reference to Fig. 1, Fig. 1 has shown the exemplary schematic construction of tubulation apparatus.
With reference to Fig. 1, the method that is used to make elliptic anticollision beam according to the present invention starts from the uncoiling operation, and the tubing that wherein is cut into preset width is launched continuously and leaves in the ring-type retainer A2 from uncoiler A1.
Uncoiler A1 has the disk shaped structure so that can make pipe continuously.Ring-type retainer A2 plays the effect of buffer, and the tubing of its storing predetermined amount also interconnects independently tubing so that the main body of pipe mill can be moved incessantly continuously.
Afterwards, along with the tubing that leaves among the ring-type retainer A2 is transmitted, this tubing is transmitted by batch marker A3.Tubing stands mark processing in batches, and wherein lot number is marked on the surface of tubing by batch marker A3.
The batch marking operation of carrying out batch marker A3 is to follow the tracks of the production lot of end product.For example, repeatedly mark production year and date (day and night) on the surface of pipe.In the present invention, as shown in Figure 2, preferably the type of preliminary election " Lo " is fixed on specific one surface in the guide roller " G ", and guide roller " G " is rotated with the contacted state of upper and lower surface with the tubing " S " that transmits, and is pressed against tubing " S " and goes up with the mark lot number.
Be through with by said process on the surface of tubing " S " after the mark lot number, rabbet by edge scarfing machine A4 on two limits of tubing " S ".
The edge interlocking process that enforcement is carried out by edge scarfing machine A4 be for remove when the tubing cutting is preset width or at the edge of tubing because the burr of generation when contact or bump foreign object suffer damage when transmitting tubing.If the tubing that has burr or suffer damage is introduced into tubulation apparatus, then in the end can cause weld defect or flaw in the finished product.
After the edge interlocking technology that is through with, tubing " S " is transferred into shaping area A5 to stand forming processes.
Shaping area A5 is made up of by (fin pass) processing section roughing processing section and periphery, wherein the roughing processing section comprises three grades of guiding supports of level Four support that force to be driven by motor and the frictional force that causes by contact with tubing " S " idle running, periphery then comprise by the processing section three grades of supports driving by force by motor with by contact secondary that the frictional force that causes the dallies support that leads with tubing " S ".
Because this fact, in the roughing processing section, tubing " S " is formed the thickness deviation that has circular shape of cross section and caused with homogenising by rolling from raw material manufacturing wire coil the time.By the processing section, tubing " S " being introduced into the center of tubulation apparatus, and is implemented the casting bed moulding so that the edge of the tubing " S " that is squeezed is trimmed by centralization when transmitting by the roughing processing section at periphery.
At this moment, in order to carry out rolling function, in the roughing processing section, provide the FR of format roll as shown in Figure 3 with homogenising thickness deviation thus.Preferably, this format roll FR is designed to have a plurality of circumferential sizes, especially, four or five circumferential sizes, R1=9.858 radian for example, the R2=13.208 radian ..., R4=16.335 radian and R5=20.414 radian.
Further, by in the processing section, in order to realize good weldability, V-arrangement drift angle (distance between the tubing relative edge) is controlled as the preliminary treatment factor at the edge.
Tubing S by forming processes is transferred into welding and cooling procedure.
Welding process is by bonding machine A6 execution and be considered to most important process in each tubulation process.
Why so reason be when transmitting by forming process plane tubing " S " be deformed have the oval cross section shape after, must be to tubing " S " enforcement welding procedure with oval cross section shape.
For this purpose, in the present invention, adopted high-frequency induction heating, wherein at bonding machine A
Front end has been placed three compression rollers " Sr ".By on the compression roller " Sr " time, tubing " S " is extruded roller " Sr " extruding and soldered at the tubing with ellipsoidal structure " S " of heating.
At cooling zone A7, the sweating heat that produces in the welding process is cooled.After finishing finished product, in order to prevent pipe, in being essentially square container, inject cooling water, make pipe spray then or be splashed on the pipe of transmission to remove latent heat by cooling water or with cooling water by the phenomenon of the latent heat bending in the pipe.
After the cooling procedure that is through with in this way, pipe is delivered to sizing area A8 to stand sizing processing.
In sizing area A8, level Four guiding support, the secondary that is provided with the level Four support that force to be driven by motor, the frictional force that causes by contact with tubing " S " idle running proofreaied and correct support and three grades of cut-off supports to carry out the glacing flatness that last correct operation and acquisition are expected.
Be cut into predetermined length when then, this pipe in the end transmits by cutting machine A9.
Preferably, cutting machine A9 cuts into pipe and is suitable for the length of processing and transporting, for example about 6m.Further, preferably use flies saw as cutting tool.
In this way, just the be through with tubulation process of the elliptic anticollision beam that is used for the maker motor-car.
After having made collision prevention girders, by heat treatment process this collision prevention girders is heat-treated again by said process (pipe-making method).
By above-mentioned description obviously, the advantage that be used for the method for the elliptic anticollision beam of maker motor-car provides according to the present invention is: even owing to just can realize the even distribution of residualinternal stress initial when forming final pipe as elliptic anticollision beam, so can minimize the warpage of pipe and increase the output of elliptic anticollision beam.Equally, owing to even heat treatment under the situation that has non-circular transverse cross-section such as oval cross section shape in collision prevention girders can be implemented in even and continuous mode, therefore just minimized warpage, suppressed owing to Strength Changes produces faulty goods, and can prevent that under case of collision passenger that the inadequate function owing to collision prevention girders causes and/or driver's is injured.Thus, just can significantly improve motor vehicle elliptic anticollision beam quality and increase its output.
Although described the preferred embodiments of the present invention, it will be understood by those of skill in the art that under the situation that does not break away from the appended disclosed scope and spirit of the present invention of claim, various modifications, interpolation and replacement all are possible for the illustrative purpose.
Claims (2)
1. the method for the elliptic anticollision beam of a maker motor-car comprises:
The uncoiling step is used for launching continuously the tubing of cutting and leaves the tubing of this cutting in the ring-type retainer temporarily;
The batch markers step, the tubing that leaves in the uncoiling step in the ring-type retainer passes through to support and carry the surface markers lot number of the guide roller of tubing at tubing when the tube rolling body transmits;
The edge scarf step, the both sides of this tubing of interlocking under the state that tubing is transmitted with the state that has been labeled lot number;
Forming step uses tubing that the rolling edge of format roll rabbeted having the homogeneous thickness tolerance and to produce oval-shaped shape of cross section, and adjusts the V-arrangement drift angle to the condition that is suitable for welding;
Welding and cooling step have passed through the tubing of forming step by the high-frequency induction heating welding, and have cooled off this tubing to remove latent heat;
The sizing step minimizes the outer dia tolerance of the pipe that obtains by described welding and cooling step, and this pipe is carried out the glacing flatness of correct operation to guarantee to be scheduled to; With
Cutting step, the pipe that will pass through the sizing step cuts into predetermined length.
2. the method for claim 1, wherein the format roll that uses in described forming step has the step-type processing dimension R that is in the preset range.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020050048795 | 2005-06-08 | ||
| KR20050048795 | 2005-06-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1876316A CN1876316A (en) | 2006-12-13 |
| CN100484703C true CN100484703C (en) | 2009-05-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100042902A Expired - Fee Related CN100484703C (en) | 2005-06-08 | 2006-02-13 | Method for manufacturing elliptic anticollision beam of vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100484703C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2682304T3 (en) * | 2010-09-23 | 2018-09-19 | Shape Corp. | Tubular beam with a single central leg |
| US10166593B2 (en) * | 2015-09-07 | 2019-01-01 | Hyundai Motor Company | Manufacturing method for bumper beam of vehicle |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5113557A (en) * | 1989-11-17 | 1992-05-19 | Allied Tube & Conduit Corporation | Apparatus for producing galvanized tubing |
| CN1172033A (en) * | 1996-07-30 | 1998-02-04 | 日野自动车工业株式会社 | Vehicle door |
| CN1631569A (en) * | 2003-12-22 | 2005-06-29 | 吉欣（英德）热轧不锈复合钢有限公司 | Method for manufacturing metal compound pipe by braze welding, hot rolling and continuous welding |
-
2006
- 2006-02-13 CN CNB2006100042902A patent/CN100484703C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5113557A (en) * | 1989-11-17 | 1992-05-19 | Allied Tube & Conduit Corporation | Apparatus for producing galvanized tubing |
| CN1172033A (en) * | 1996-07-30 | 1998-02-04 | 日野自动车工业株式会社 | Vehicle door |
| CN1631569A (en) * | 2003-12-22 | 2005-06-29 | 吉欣（英德）热轧不锈复合钢有限公司 | Method for manufacturing metal compound pipe by braze welding, hot rolling and continuous welding |
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| Publication number | Publication date |
|---|---|
| CN1876316A (en) | 2006-12-13 |
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