CN103286467B - A kind of welding method controlling frame assembly deformation - Google Patents
A kind of welding method controlling frame assembly deformation Download PDFInfo
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- CN103286467B CN103286467B CN201310250828.8A CN201310250828A CN103286467B CN 103286467 B CN103286467 B CN 103286467B CN 201310250828 A CN201310250828 A CN 201310250828A CN 103286467 B CN103286467 B CN 103286467B
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- floor side
- assembly station
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Abstract
The present invention discloses a kind of welding method controlling frame assembly deformation, the method concrete steps: (1) left-right longeron assembly station, only 6 points bottom longeron and floor side member in welding；(2) at roof beam structure assembly station, CO is first used2It is soldered into the welding such as crossbeam, distance rod crossbeam assembly after electromotor is installed, the most again longeron and floor side member side lower 3 × 2 point in welding；(3) at roof beam structure assembly station, first parts in step (1) and step (2) have been welded, now under clamp pressing state, finally completed middle longeron and floor side member junction side surface upper part 2 × 2 and upper overturning 2 × 2 means of spot welds.After using the method, after using the method, being effectively controlled frame assembly deformation, strength member dimensionally stable, no-float, fixture location is reliable.
Description
Technical field
The present invention relates to a kind of welding method controlling frame assembly deformation.
Background technology
There is deviation in hole in piece part position, longeron resilience is big, and part match ratio is poor, and major part part does not reaches requirement；Part fixture positioning precision, intensity do not reach requirement, have interference and position unreliable phenomenon；After the welding of roof beam structure assembly, in body in white cubing, left and right front longitudinal leading portion warpage 1-1.5mm maximum reaches 2 3mm, and left and right floor side member back segment warpage 1-1.5mm maximum reaches 2 3mm, and in left and right, in the middle of longeron, 3 planes measure only 1 2mm sometimes；The total Chengdu of almost all roof beam structure is this situation, and best warpage is below 1, and the most qualified is almost little, below 30%.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, it is also carried out welding procedure (welding sequence) adjusting, welding procedure is fully analyzed, carry out multivariant test to adjust, sum up optimum process scheme, it is the solder joint of beam junction, middle part to roof beam structure deformation effect maximum, proposes a kind of welding method controlling frame assembly deformation.
To achieve these goals, a kind of welding method controlling frame assembly deformation, specifically comprising the following steps that of the method
Former technique is changed at left-right longeron assembly station 20 solder joint:
(1) 6 points bottom longeron and floor side member during left-right longeron assembly station only welds；
(2) at roof beam structure assembly station, CO is first used2It is soldered into crossbeam, distance rod crossbeam components welding after electromotor is installed, the most again longeron and floor side member side lower 3 × 2 point in welding；
(3) at roof beam structure assembly station, first above-mentioned miscellaneous part having been welded, now under clamp pressing state, part is in theoretical position, finally completes middle longeron and floor side member junction side surface upper part 2 × 2 and upper overturning 2 × 2 means of spot welds；After being adjusted, reduce deflection to greatest extent.
After the invention has the beneficial effects as follows employing the method, strength member dimensionally stable, no-float, fixture location is reliable, after being finally reached the welding of roof beam structure assembly, in body in white cubing, qualification rate more than 99%, maximum warpage controls at below 1mm, accounts for less than 5%, disqualification rate less than 1%.
Accompanying drawing explanation
Fig. 1 is the welding schematic diagram of a kind of welding method controlling frame assembly deformation.
Detailed description of the invention
A kind of welding method controlling frame assembly deformation, specifically comprising the following steps that of the method
Former technique is changed at left-right longeron assembly station 20 solder joint:
(1) 6 points bottom longeron and floor side member during left-right longeron assembly station only welds；
(2) at roof beam structure assembly station, CO is first used2It is soldered into crossbeam, distance rod crossbeam components welding after electromotor is installed, the most again longeron and floor side member side lower 3 × 2 point in welding；
(3) at roof beam structure assembly station, first above-mentioned miscellaneous part has been welded, now under clamp pressing state, part is in theoretical position, finally complete middle longeron and floor side member junction side surface upper part 2 × 2 and upper overturning 2 × 2 means of spot welds, after being adjusted, reduce deflection to greatest extent.
Last it is noted that above example only in order to the present invention is described and and unrestricted technical scheme described in the invention；Therefore, although this specification with reference to each above-mentioned embodiment to present invention has been detailed description, but, it will be understood by those within the art that, still the present invention can be modified or equivalent；And all are without departing from spirit and the technical scheme of scope and improvement thereof, it all should be contained in the middle of scope of the presently claimed invention.
Claims (1)
1. control a welding method for frame assembly deformation, it is characterized in that being: specifically comprising the following steps that of the method
(1) left-right longeron assembly station, only 6 points bottom longeron and floor side member in welding；
(2) at roof beam structure assembly station, CO is first used2It is soldered into crossbeam, distance rod crossbeam components welding after electromotor is installed, the most again longeron and floor side member side lower 3 × 2 point in welding；
(3) at roof beam structure assembly station, first above-mentioned miscellaneous part has been welded, now under clamp pressing state, finally completed middle longeron and floor side member junction side surface upper part 2 × 2 and upper overturning 2 × 2 means of spot welds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310250828.8A CN103286467B (en) | 2013-06-24 | 2013-06-24 | A kind of welding method controlling frame assembly deformation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310250828.8A CN103286467B (en) | 2013-06-24 | 2013-06-24 | A kind of welding method controlling frame assembly deformation |
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| Publication Number | Publication Date |
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| CN103286467A CN103286467A (en) | 2013-09-11 |
| CN103286467B true CN103286467B (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310250828.8A Active CN103286467B (en) | 2013-06-24 | 2013-06-24 | A kind of welding method controlling frame assembly deformation |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115041796A (en) * | 2022-06-30 | 2022-09-13 | 东风柳州汽车有限公司 | Welding method and welding device for automobile longitudinal beam structure |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101774410A (en) * | 2010-03-04 | 2010-07-14 | 北汽福田汽车股份有限公司 | Method for producing automotive frame assembly |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1541455B1 (en) * | 1998-12-11 | 2011-03-02 | Nissan Motor Company Limited | Automotive vehicle |
| US7271367B2 (en) * | 2005-06-23 | 2007-09-18 | Comau, Inc. | Single retainer mounted riser |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101774410A (en) * | 2010-03-04 | 2010-07-14 | 北汽福田汽车股份有限公司 | Method for producing automotive frame assembly |
Non-Patent Citations (1)
| Title |
|---|
| 汽车车架焊接及质量控制;李国凡等;《汽车零部件》;20130228(第2期);第78页第2-3段及图1-2 * |
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| CN103286467A (en) | 2013-09-11 |
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Owner name: HEFEI CHANGAN AUTOMOBILE CO., LTD. Free format text: FORMER OWNER: HEFEI CHANGHE AUTOMOBILE CO., LTD. Effective date: 20140603 |
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Effective date of registration: 20140603 Address after: 230088 No. 966 Dabie Mountain Road, hi tech Zone, Anhui, Hefei Applicant after: Hefei Changan Automobile Co., Ltd. Address before: 230088 No. 3 Yulan Road, hi tech Zone, Anhui, Hefei Applicant before: Hefei Changhe Automobile Co., Ltd. |
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