CN102847773B - Frame longitudinal head forming method - Google Patents
Frame longitudinal head forming method Download PDFInfo
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- CN102847773B CN102847773B CN201210329646.5A CN201210329646A CN102847773B CN 102847773 B CN102847773 B CN 102847773B CN 201210329646 A CN201210329646 A CN 201210329646A CN 102847773 B CN102847773 B CN 102847773B
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- drop
- longitudinal beam
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- forming method
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Abstract
The invention discloses a frame longitudinal head forming method which is designed for solving problems that strength of a frame longitudinal beam is poor or labor intensity is overhigh or processing cost is overhigh and the like generated in existing frame longitudinal head process. The head of the frame longitudinal beam is formed by a hydraulic forming method, and by the frame longitudinal head forming method, advantages of processing convenience, high product strength, low cost and the like are achieved.
Description
Technical field
The present invention relates to a kind of forming method of longitudinal beam, relate in particular to a kind of longitudinal beam drop forming method.
Background technology
Longitudinal beam mostly needs match wheel the form of the foetus to become drop, and the method for existing making longeron drop has following several:
Method 1: adopt segmented moulding at the longeron at drop place, by welding and the method such as riveted joint connects each section; The problem that this method exists is that working (machining) efficiency is low, and the longitudinal beam intensity of machine-shaping is little, affects the security performance in automotive operation process;
Method 2: adopt flat board to be cutting into drop shape, then pass through mould molding; Although this method has solved the problem of insufficient strength in method 1, production cost increases substantially, and only material cost has just increased by 30%;
Method 3: adopt high-temperature heating to complete the brake forming of longeron drop; This method will cause high-temperature heating floor side member phenomenon easy to crack.
Comprehensively above-mentioned, be urgent problem therefore find a kind of both no effect on longitudinal-beam intensity, quality to be guaranteed and not to cause the longeron drop forming method that cost is high.
Summary of the invention
For addressing the above problem, the invention provides the large longitudinal beam drop forming method of longitudinal beam intensity that a kind of processing method is simple and produce.
For reaching above-mentioned purpose, longitudinal beam drop forming method of the present invention is to adopt the method for shaped by fluid pressure to form the drop of longitudinal beam.
Further, the method for described longitudinal beam drop moulding specifically comprises the following steps:
Step 1: select or make the required straight beam of longitudinal beam;
Step 2: select mould according to the position of wheel demand of vehicle frame and drop parameter;
Step 3: described straight beam is arranged on to filling liquid hydraulic fluid in described mould and in mould, exerts pressure and form the drop of longitudinal beam.
Further, described mould is adjustable mold, and described mould is adjustable mold, and between described step 2 and described step 3, also comprises according to the step of the assembling of drop parameter and debugging mould.
Further, described mould is divided into mold and bed die; Described mold is provided with the punch that meets position of wheel demand and drop parameter; At described bed die and the topping up pipe that is provided with the liquid-filled chamber suitable with described punch in described punch opposite position and is connected with described liquid-filled chamber.
Further, described mould is divided into mold and bed die, and described bed die is provided with the die that meets position of wheel demand and drop parameter; Described mold is being provided with topping up pipe with described die opposite position.
Further, described straight beam is the U groove straight beam that side face becomes U font.
Further, described longitudinal beam is bus frame longeron.
The beneficial effect of longitudinal beam drop forming method of the present invention:
1, longitudinal beam drop forming method of the present invention, adopts the method for shaped by fluid pressure to form longeron drop, and process operation is easier, has reduced labour intensity.
2, longitudinal beam drop forming method of the present invention, adopts the method for shaped by fluid pressure to form longeron drop, and the longeron being processed to form does not have pad or riveted point, and the intensity of longeron is large and best in quality.
3, longitudinal beam drop forming method of the present invention, the grinding tool of employing can be that nonadjustable mould can be also adjustable mold, preferred adjustable mold.Use adjustable mold effectively to avoid non-adjustable mould to use the later stage mismachining tolerance causing of wearing and tearing, and a set of adjustable mold can be applied to the vehicle frame of different size or kind, improve the frequency of utilization of mould, save production cost.
4, longitudinal beam drop forming method of the present invention, the straight beam of employing is the U groove beam that side is U font, in adopting shaped by fluid pressure, has increased the area of hydraulic fluid and/or the effect of punch active force, moulding is more quick.
6, longitudinal beam drop forming method applied range of the present invention, be suitable for the longitudinal beam moulding of lorry, passenger vehicle, private car and engineering truck, especially be applicable to vehicle frame wide cut as this in passenger vehicle large, the drop moulding of the bus frame longeron that drop parameter is changeable.
Brief description of the drawings
Fig. 1 is the flow chart of the longitudinal beam drop forming method described in the embodiment of the present invention one;
Fig. 2 is the U groove straight beam structure schematic diagram described in the embodiment of the present invention two;
Fig. 3 is the frame carling structure schematic diagram described in the embodiment of the present invention two;
Fig. 4 is mould and the straight beam assembly structure schematic diagram described in the embodiment of the present invention three;
Fig. 5 is mould and the straight beam assembly structure schematic diagram described in the embodiment of the present invention four.
Detailed description of the invention
Below in conjunction with Figure of description, the present invention will be further described.
Embodiment mono-:
In order to solve for a long time in longitudinal beam manufacturing process, the problem such as processing technology labour intensity is large, production cost is high, the longitudinal beam drop forming method described in the present embodiment, adopts the method for shaped by fluid pressure to form the drop of described vehicle frame.
The longitudinal beam of producing of shaped by fluid pressure can meet the requirement of various vehicles to frame strength completely, and meanwhile processing technology labour intensity is little, and cost is low.
As shown in Figure 1, described longitudinal beam drop forming method specifically comprises the following steps again:
First: purchase or self manufacture are produced the straight beam of required longitudinal beam;
Second: select suitable mould according to drop parameters such as the wheel figure place demand of described production vehicle frame and wheel bit depth, width and bending angles;
The the 3rd: the straight beam in first is assembled in mould and to filling liquid hydraulic fluid in mould, then exerts pressure and produce the required drop of described longitudinal beam to mould or hydraulic fluid.Wherein said hydraulic fluid can be that hydraulic pressure water can be also other hydraulic oil.
In step the second, the mould of application can be nonadjustable mould, size shape for different vehicle frame moulds differs, can directly use in process of production, use later stage wearing and tearing to wait to cause the frequency of die change relatively high but exist mould, mould is conventionally can only corresponding a kind of vehicle frame cannot multiplexing utilization rate also lower.
As further improvement of the present invention, the present invention preferentially adopts adjustable mold, therefore also need according to position of wheel demand and the assembling of drop parameter between step the second and step the three and debug mould to produce required longitudinal beam.
Longitudinal beam drop forming method described in the present embodiment, can be applied to and make various vehicle frames, is especially applicable to making the bus frame that vehicle frame wide cut is large, drop parameter is changeable.
Embodiment bis-:
On the basis of embodiment mono-, the present embodiment is in first step, and the straight beam of employing is the U groove straight beam that side is U font, as shown in Figure 2 concrete.Wherein, shown in Fig. 3 is the longitudinal beam after moulding, the drop that wherein bending part is longitudinal beam.
Employing U groove straight beam is with respect to common straight beam in shaped by fluid pressure, and the interaction area between hydraulic fluid or punch and straight beam is larger, and deformation is more stable and rapider.
Embodiment tri-:
On the basis of embodiment mono-, the present embodiment is in second step, and the mould of described employing is mould as shown in Figure 4; Described mould comprises mold 1 and bed die 2; Described mold 1 is provided with the punch 4 that meets position of wheel demand and drop parameter; The topping up pipe 6 that is provided with the liquid-filled chamber 5 suitable with described punch 4 and is connected with described liquid-filled chamber 5 with described punch 4 opposite positions in described bed die 2.
Wherein, when needs are in mould when filling liquid hydraulic fluid, described topping up pipe 6 is for the input of described hydraulic fluid; Described liquid-filled chamber 5 is for carrying out the storage of hydraulic fluid; Move downward when described punch 4 is subject to external force, shown in the mild generation deformation under the common effect of hydraulic fluid and punch 4 of the label straight beam that is 3, finally form the required drop of described longitudinal beam.The active force that is subject to punch 4 when straight beam moves downward, and the crimping section that described hydraulic fluid is subject to described straight beam outflows by described topping up pipe 6.
Embodiment tetra-:
On the basis of embodiment mono-, the mould in the present embodiment described in second step is as shown in 5, and described mould is divided into mold 7 and bed die 8, and described bed die 8 is provided with the die 10 that meets position of wheel demand and drop parameter; Described mold 7 is being provided with topping up pipe 11 with described die opposite position.
Wherein label 9 represents the straight beam described in first step; Hydraulic fluid enters mold by topping up pipe 11, and described straight beam bends distortion under the pressure-acting of hydraulic fluid in die, finally forms the required drop of longitudinal beam.
In the present embodiment longitudinal beam drop forming method, mould used is different from the mould of implementing in three, and the mould described in the present embodiment, generating in the process of producing, is exerted pressure the total beam drop of vehicle frame is finally formed in filling liquid hydraulic fluid.Two kinds of moulds all can be applied to longitudinal beam drop forming method of the present invention, all have feature simple in structure, easy and simple to handle.
Above; be only preferred embodiment of the present invention, but protection scope of the present invention is not limited to this, any be familiar with those skilled in the art the present invention disclose technical scope in; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claim was defined.
Claims (2)
1. a longitudinal beam drop forming method, is characterized in that, described longitudinal beam drop forming method is the drop that adopts the method formation longitudinal beam of shaped by fluid pressure, wherein,
The method of described longitudinal beam drop moulding specifically comprises the following steps:
Step 1: select or make the required straight beam of longitudinal beam;
Step 2: select mould according to the position of wheel demand of vehicle frame and drop parameter;
Step 3: described straight beam is arranged on to filling liquid hydraulic fluid in described mould and in mould, exerts pressure and form the drop of longitudinal beam;
Described mould is adjustable mold, and between described step 2 and described step 3, also comprises according to the step of the assembling of drop parameter and debugging mould;
Described mould is divided into mold and bed die; Described mold is provided with the punch that meets position of wheel demand and drop parameter; At described bed die and the topping up pipe that is provided with the liquid-filled chamber suitable with described punch in described punch opposite position and is connected with described liquid-filled chamber, or, described mould is divided into mold and bed die, and described bed die is provided with the die that meets position of wheel demand and drop parameter; Described mold is being provided with topping up pipe with described die opposite position;
Described straight beam is the U groove straight beam that side becomes U font.
2. longitudinal beam drop forming method according to claim 1, is characterized in that, described longitudinal beam is bus frame longeron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210329646.5A CN102847773B (en) | 2012-09-07 | 2012-09-07 | Frame longitudinal head forming method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210329646.5A CN102847773B (en) | 2012-09-07 | 2012-09-07 | Frame longitudinal head forming method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102847773A CN102847773A (en) | 2013-01-02 |
| CN102847773B true CN102847773B (en) | 2014-10-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210329646.5A Expired - Fee Related CN102847773B (en) | 2012-09-07 | 2012-09-07 | Frame longitudinal head forming method |
Country Status (1)
| Country | Link |
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| CN (1) | CN102847773B (en) |
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| CN1915553A (en) * | 2006-09-05 | 2007-02-21 | 祝志强 | Method for molding metalwork directly by using fluid pressure |
| CN101574771A (en) * | 2008-05-05 | 2009-11-11 | 福特全球技术公司 | Pulsed electro-hydraulic calibration of stamped panels |
| DE102009042183A1 (en) * | 2009-09-18 | 2011-03-24 | Daimler Ag | Method for manufacturing of support element of vehicle body of passenger car, processing hollow profile in processing section by bending in associated processing section by high internal pressure forming |
| CN201889420U (en) * | 2010-10-18 | 2011-07-06 | 宝山钢铁股份有限公司 | Hydraulic forming die capable of precisely adjusting cavity positions |
| CN102166705A (en) * | 2011-03-23 | 2011-08-31 | 胡旭 | Method for forming multi-layer frame longitudinal beam and multi-layer frame longitudinal beam |
| CN102189175A (en) * | 2010-03-09 | 2011-09-21 | 财团法人金属工业研究发展中心 | Die for manufacturing metal shell and manufacturing method of metal shell |
| CN102355962A (en) * | 2009-03-19 | 2012-02-15 | 麦格纳国际公司 | Method of producing tailored tubes |
| CN102632125A (en) * | 2012-04-01 | 2012-08-15 | 首钢总公司 | Plate differential temperature hydroforming device capable of realizing radial pressurizing and hydraulic blank pressing |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010023855B4 (en) * | 2010-06-15 | 2018-11-15 | Bürkert Werke GmbH | Method for producing a metallic valve housing |
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2012
- 2012-09-07 CN CN201210329646.5A patent/CN102847773B/en not_active Expired - Fee Related
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|---|---|---|---|---|
| CN1915553A (en) * | 2006-09-05 | 2007-02-21 | 祝志强 | Method for molding metalwork directly by using fluid pressure |
| CN101574771A (en) * | 2008-05-05 | 2009-11-11 | 福特全球技术公司 | Pulsed electro-hydraulic calibration of stamped panels |
| CN102355962A (en) * | 2009-03-19 | 2012-02-15 | 麦格纳国际公司 | Method of producing tailored tubes |
| DE102009042183A1 (en) * | 2009-09-18 | 2011-03-24 | Daimler Ag | Method for manufacturing of support element of vehicle body of passenger car, processing hollow profile in processing section by bending in associated processing section by high internal pressure forming |
| CN102189175A (en) * | 2010-03-09 | 2011-09-21 | 财团法人金属工业研究发展中心 | Die for manufacturing metal shell and manufacturing method of metal shell |
| CN201889420U (en) * | 2010-10-18 | 2011-07-06 | 宝山钢铁股份有限公司 | Hydraulic forming die capable of precisely adjusting cavity positions |
| CN102166705A (en) * | 2011-03-23 | 2011-08-31 | 胡旭 | Method for forming multi-layer frame longitudinal beam and multi-layer frame longitudinal beam |
| CN102632125A (en) * | 2012-04-01 | 2012-08-15 | 首钢总公司 | Plate differential temperature hydroforming device capable of realizing radial pressurizing and hydraulic blank pressing |
Non-Patent Citations (2)
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| 严向阳等.组合模在车架纵梁生产中的应用.《模具工业》.2002,(第6期),第27-29页. |
| 组合模在车架纵梁生产中的应用;严向阳等;《模具工业》;20020630(第6期);第27-29页 * |
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| CN102847773A (en) | 2013-01-02 |
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| SE01 | Entry into force of request for substantive examination | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20130102 Assignee: Shiyan Huizhi Hongye frame Co. Ltd. Assignor: Hu Xu Contract record no.: 2013990000280 Denomination of invention: Frame longitudinal head forming method License type: Exclusive License Record date: 20130529 |
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Granted publication date: 20141015 Termination date: 20190907 |
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| CF01 | Termination of patent right due to non-payment of annual fee |