CN114029641A - Part welding reversible deformation adjusting method and part - Google Patents
Part welding reversible deformation adjusting method and part Download PDFInfo
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- CN114029641A CN114029641A CN202111037451.9A CN202111037451A CN114029641A CN 114029641 A CN114029641 A CN 114029641A CN 202111037451 A CN202111037451 A CN 202111037451A CN 114029641 A CN114029641 A CN 114029641A
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- 238000003466 welding Methods 0.000 title claims abstract description 135
- 230000002441 reversible effect Effects 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 33
- 230000002035 prolonged effect Effects 0.000 claims abstract description 14
- 210000001503 joint Anatomy 0.000 claims description 9
- 238000010586 diagram Methods 0.000 description 4
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/003—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to controlling of welding distortion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D27/00—Connections between superstructure or understructure sub-units
- B62D27/02—Connections between superstructure or understructure sub-units rigid
- B62D27/023—Assembly of structural joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/006—Vehicles
Abstract
The method is suitable for the field of part reversible deformation adjustment, and provides a part welding reversible deformation adjusting method and a part, wherein a first part and a second part are generated through zero boundary adjustment; the theoretical calculation welding shrinkage sizes of the first part and the second part before adjustment are respectively delta L, the boundary of the first part and the second part is generated to be prolonged by delta L relative to the theoretical calculation boundary before adjustment, and the theoretical calculation welding distance between the first part and the second part before adjustment is d; when the reverse deformation welding mode is implemented, the welding distance between the generated first part and the generated second part is the theoretical calculation welding distance d. According to the method, the mode of combining part size adjustment and anti-deformation adjustment is utilized, the part gap is guaranteed to be unchanged by utilizing part boundary adjustment, welding errors caused by gap change are eliminated, and therefore the anti-deformation adjustment can be achieved at one time, and data are accurate.
Description
Technical Field
The application relates to the field of part reversible deformation adjustment, in particular to a part welding reversible deformation adjusting method and a part.
Background
In the welding process of parts, the welding shrinkage phenomenon of the parts occurs, and the welding shrinkage phenomenon is overcome, and the welding shrinkage phenomenon is generally adjusted through the reverse deformation of the parts, but when the butt joint of the frame structure and the T-shaped joint of the vehicle body structure are welded, the condition that after the two parts are reversely deformed, the gap between the two parts is enlarged, the welding shrinkage is enlarged, and the adjustment amount of the reverse deformation amount is insufficient is caused. If the deformation is enlarged, the problem of insufficient reverse deformation adjustment is solved, and the gap between parts is too large to be welded. Therefore, the existing common reversible deformation adjusting method cannot be applied to the precise adjustment of the part welding.
Disclosure of Invention
The application provides a part welding reverse deformation adjusting method and a part, and aims to solve the problem that shrinkage is large due to the fact that the larger the reverse deformation is, the larger the gap is caused by an existing welding mode.
The application provides a part welding reversible deformation adjusting method, which comprises the steps of generating a first part through zero boundary adjustment and generating a second part through zero boundary adjustment; the theoretically-calculated welding shrinkage sizes of the first part before adjustment and the second part before adjustment are respectively delta L, the boundary of the generated first part is prolonged by the delta L relative to the theoretically-calculated boundary of the first part before adjustment, the boundary of the generated second part is prolonged by the delta L relative to the theoretically-calculated boundary of the second part before adjustment, and the theoretically-calculated welding distance between the first part before adjustment and the second part before adjustment is d;
and welding the first part and the second part respectively generated through zero boundary adjustment by using an inverse deformation welding mode, wherein when the inverse deformation welding mode is implemented, a welding distance between the generated first part and the generated second part is the theoretical calculation welding distance d.
Optionally, when the reversible deformation welding mode is implemented, the generated welding positioning point of the first part is extended outward by Δ L relative to the theoretical welding positioning point of the first part before adjustment, and the generated welding positioning point of the second part is extended outward by Δ L relative to the theoretical welding positioning point of the second part before adjustment.
Optionally, a theoretically calculated welding positioning distance between theoretical welding positioning points of the first part and the second part before adjustment is L, and when the inverse deformation welding mode is implemented, the generated welding positioning distance between the first part and the second part is extended by 2 Δ L, that is, L +2 Δ L, relative to the theoretically calculated welding positioning distance between the theoretical welding positioning points.
Optionally, when the reversible deformation welding mode is implemented, the generated first part and the generated second part are positioned and welded by using a reversible deformation positioning fixture, and a welding positioning distance of the reversible deformation positioning fixture is L +2 Δ L.
Optionally, when the reversible deformation welding mode is implemented, a first positioning point of the reversible deformation positioning fixture fixes a welding positioning point of the first part, a second positioning point of the reversible deformation positioning fixture fixes a welding positioning point of the second part, and a distance between the first positioning point and the second positioning point of the reversible deformation positioning fixture is L +2 Δ L.
Optionally, the first part and the second part are butt joints of a frame structure.
Optionally, the first part and the second part are T-joints of a vehicle body structure.
On the other hand, the application also provides a part, the part is applied to the first part or the second part used in any one of the methods, the part is generated through zero boundary adjustment, the theoretically-calculated welding shrinkage size of the part before adjustment is delta L, the generated boundary of the part is prolonged by delta L relative to the theoretically-calculated boundary of the part before adjustment, the theoretically-calculated welding distance of two parts before adjustment is d, and the generated welding distance between the two parts is the theoretically-calculated welding distance d.
Optionally, the part is a butt joint of a frame structure.
Optionally, the part is a T-joint of a vehicle body structure.
The application provides a part welding reversible deformation adjusting method and a part, wherein a first part is generated through zero boundary adjustment, and a second part is generated through zero boundary adjustment; the theoretically-calculated welding shrinkage sizes of the first part before adjustment and the second part before adjustment are respectively delta L, the boundary of the generated first part is prolonged by the delta L relative to the theoretically-calculated boundary of the first part before adjustment, the boundary of the generated second part is prolonged by the delta L relative to the theoretically-calculated boundary of the second part before adjustment, and the theoretically-calculated welding distance between the first part before adjustment and the second part before adjustment is d; and welding the first part and the second part respectively generated through zero boundary adjustment by using an inverse deformation welding mode, wherein when the inverse deformation welding mode is implemented, a welding distance between the generated first part and the generated second part is the theoretical calculation welding distance d. According to the method, the mode of combining part size adjustment and anti-deformation adjustment is utilized, the part gap is guaranteed to be unchanged by utilizing part boundary adjustment, welding errors caused by gap change are eliminated, and therefore the anti-deformation adjustment can be achieved at one time, and data are accurate. The application reduces anti-deformation adjustment times and improves welding precision. The reversible deformation of the part moves by delta L on the left side and also moves by delta L on the right side according to the welding shrinkage, and the middle boundary of the part is simultaneously prolonged by delta L, so that the gap is ensured to be unchanged, and the aim of accurate adjustment is fulfilled. Namely, the middle boundary of the part is extended while the positioning hole of the part is adjusted in a reversible deformation mode, the numerical values are the same, and finally the gaps are guaranteed to be the same.
Drawings
FIG. 1 is a flow chart of a method for adjusting welding deformation of a part according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram illustrating a method for adjusting welding deformation of a part according to another embodiment of the present disclosure;
FIG. 3 is a block diagram illustrating an adjustment of a butt joint of a vehicle frame structure according to another embodiment of the present application;
fig. 4 is a view showing an adjustment structure of a butt joint of a vehicle body structure according to another embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The application provides a part welding reverse deformation adjusting method and a part, and aims to solve the problem that shrinkage is large due to the fact that the larger the reverse deformation is, the larger the gap is caused by an existing welding mode.
The method is suitable for the field of part reversible deformation adjustment, and provides a part welding reversible deformation adjusting method and a part, wherein a first part and a second part are generated through zero boundary adjustment; the theoretical calculation welding shrinkage sizes of the first part and the second part before adjustment are respectively delta L, the boundary of the first part and the second part is generated to be prolonged by delta L relative to the theoretical calculation boundary before adjustment, and the theoretical calculation welding distance between the first part and the second part before adjustment is d; when the reverse deformation welding mode is implemented, the welding distance between the generated first part and the generated second part is the theoretical calculation welding distance d. According to the method, the mode of combining part size adjustment and anti-deformation adjustment is utilized, the part gap is guaranteed to be unchanged by utilizing part boundary adjustment, welding errors caused by gap change are eliminated, and therefore the anti-deformation adjustment can be achieved at one time, and data are accurate.
As shown in fig. 1, the present application provides a method for adjusting welding deformation of a part, comprising the following steps:
110. generating a first part by zero boundary adjustment and generating a second part by zero boundary adjustment;
in this step, as shown in fig. 2, S0 shows the first part before adjustment and the second part before adjustment, the theoretically calculated weld shrinkage sizes of the first part before adjustment and the second part before adjustment are Δ L, S1 shows the weld pitch and the weld positioning pitch of the first part before adjustment and the second part before adjustment by reverse deformation, S2 shows the weld positioning pitch of the first part before adjustment and the second part before adjustment by reverse deformation, and as shown in the adjustment mode of S2 shown in fig. 2, the boundary of the first part before adjustment is extended by Δ L from the theoretically calculated boundary of the first part before adjustment, and the boundary of the second part before adjustment is extended by Δ L from the theoretically calculated boundary of the second part before adjustment, as shown in S0 shown in fig. 2, theoretically calculating the welding distance d between the first part and the second part before adjustment; as shown in S1 of fig. 2, the first part before adjustment and the second part before adjustment are subjected to reverse deformation adjustment, the theoretical calculated welding pitch of the welding method is d +2 Δ L, the welding positioning pitch is L +2 Δ L, the larger the reverse deformation caused by the welding adjustment method, the larger the gap, and the larger the shrinkage, and in order to solve this problem, the first part and the second part generated by zero boundary adjustment are subjected to reverse deformation welding in the following step 120, and the specific implementation manner is described as follows:
120. welding the first part and the second part which are respectively generated through zero boundary adjustment in an inverse deformation welding mode;
in this step, when the reverse deformation welding mode is performed, the welding pitch between the first part and the second part is the theoretical calculated welding pitch d, that is, the welding pitch is maintained at d.
Optionally, when the reversible deformation welding mode is implemented, the generated welding positioning point of the first part is extended outward by Δ L relative to the theoretical welding positioning point of the first part before adjustment, and the generated welding positioning point of the second part is extended outward by Δ L relative to the theoretical welding positioning point of the second part before adjustment.
Optionally, a theoretically calculated welding positioning distance between theoretical welding positioning points of the first part and the second part before adjustment is L, and when the inverse deformation welding mode is implemented, the generated welding positioning distance between the first part and the second part is extended by 2 Δ L, that is, L +2 Δ L, relative to the theoretically calculated welding positioning distance between the theoretical welding positioning points. When the step is implemented, the welding distance d is kept unchanged, and the shrinkage phenomenon during part welding can still be adjusted by the welding positioning distance L +2 Delta L in the reversible deformation welding mode, so that the problem of large shrinkage caused by the larger gap when the reversible deformation is larger is solved.
Optionally, when the reversible deformation welding mode is implemented, the generated first part and the generated second part are positioned and welded by using a reversible deformation positioning fixture, and a welding positioning distance of the reversible deformation positioning fixture is L +2 Δ L.
Optionally, when the reversible deformation welding mode is implemented, a first positioning point of the reversible deformation positioning fixture fixes a welding positioning point of the first part, a second positioning point of the reversible deformation positioning fixture fixes a welding positioning point of the second part, and a distance between the first positioning point and the second positioning point of the reversible deformation positioning fixture is L +2 Δ L.
Optionally, as shown in fig. 3, the first part and the second part are butt joints of a frame structure.
Alternatively, as shown in fig. 4, the first part and the second part are T-joints of a vehicle body structure.
On the other hand, the application also provides a part, the part is applied to the first part or the second part used in any one of the methods, the part is generated through zero boundary adjustment, the theoretically-calculated welding shrinkage size of the part before adjustment is delta L, the generated boundary of the part is prolonged by delta L relative to the theoretically-calculated boundary of the part before adjustment, the theoretically-calculated welding distance of two parts before adjustment is d, and the generated welding distance between the two parts is the theoretically-calculated welding distance d.
Optionally, as shown in fig. 3, the part is a schematic diagram of reversible deformation adjustment of a butt joint of a vehicle frame structure.
Optionally, as shown in fig. 4, the part is a schematic diagram of reverse deformation adjustment of a T-joint of a vehicle body structure.
The application provides a part welding reversible deformation adjusting method and a part, wherein a first part is generated through zero boundary adjustment, and a second part is generated through zero boundary adjustment; the theoretically-calculated welding shrinkage sizes of the first part before adjustment and the second part before adjustment are respectively delta L, the boundary of the generated first part is prolonged by the delta L relative to the theoretically-calculated boundary of the first part before adjustment, the boundary of the generated second part is prolonged by the delta L relative to the theoretically-calculated boundary of the second part before adjustment, and the theoretically-calculated welding distance between the first part before adjustment and the second part before adjustment is d; and welding the first part and the second part respectively generated through zero boundary adjustment by using an inverse deformation welding mode, wherein when the inverse deformation welding mode is implemented, a welding distance between the generated first part and the generated second part is the theoretical calculation welding distance d. According to the method, the mode of combining part size adjustment and anti-deformation adjustment is utilized, the part gap is guaranteed to be unchanged by utilizing part boundary adjustment, welding errors caused by gap change are eliminated, and therefore the anti-deformation adjustment can be achieved at one time, and data are accurate. The application reduces anti-deformation adjustment times and improves welding precision. The reversible deformation of the part moves by delta L on the left side and also moves by delta L on the right side according to the welding shrinkage, and the middle boundary of the part is simultaneously prolonged by delta L, so that the gap is ensured to be unchanged, and the aim of accurate adjustment is fulfilled. Namely, the middle boundary of the part is extended while the positioning hole of the part is adjusted in a reversible deformation mode, the numerical values are the same, and finally the gaps are guaranteed to be the same.
The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed.
Claims (10)
1. A part welding reverse deformation adjusting method is characterized by comprising the following steps:
generating a first part by zero boundary adjustment and generating a second part by zero boundary adjustment; the theoretically-calculated welding shrinkage sizes of the first part before adjustment and the second part before adjustment are respectively delta L, the boundary of the generated first part is prolonged by the delta L relative to the theoretically-calculated boundary of the first part before adjustment, the boundary of the generated second part is prolonged by the delta L relative to the theoretically-calculated boundary of the second part before adjustment, and the theoretically-calculated welding distance between the first part before adjustment and the second part before adjustment is d;
and welding the first part and the second part respectively generated through zero boundary adjustment by using an inverse deformation welding mode, wherein when the inverse deformation welding mode is implemented, a welding distance between the generated first part and the generated second part is the theoretical calculation welding distance d.
2. The method according to claim 1, wherein when the reverse deformation welding mode is performed, the generated welding positioning point of the first part is extended outward by Δ L relative to the theoretical welding positioning point of the first part before adjustment, and the generated welding positioning point of the second part is extended outward by Δ L relative to the theoretical welding positioning point of the second part before adjustment.
3. The method according to claim 2, wherein a theoretical calculated weld positioning distance between theoretical weld positioning points of the first part before adjustment and the second part before adjustment is L, and when the inverse deformation welding mode is performed, the generated weld positioning distance between the first part and the generated second part is extended by 2 Δ L, i.e., L +2 Δ L, from the theoretical calculated weld positioning distance between the theoretical weld positioning points.
4. The method according to claim 3, wherein when the reverse deformation welding mode is performed, the generated first part and the generated second part are positioned and welded by a reverse deformation positioning jig, and a welding positioning pitch of the reverse deformation positioning jig is L +2 Δ L.
5. The method according to claim 4, wherein when the reverse deformation welding mode is performed, a first positioning point of the reverse deformation positioning jig fixes a welding positioning point of the first part, a second positioning point of the reverse deformation positioning jig fixes a welding positioning point of the second part, and a distance between the first positioning point and the second positioning point of the reverse deformation positioning jig is L +2 Δ L.
6. The method of claim 5, wherein the first part and the second part are butt joints of a vehicle frame structure.
7. The method of claim 5, wherein the first and second parts are T-joints of a vehicle body structure.
8. A part for use in the first part or the second part used in the method of any of claims 1-7, wherein the part is a part produced by zero boundary adjustment, the theoretically calculated weld shrinkage dimension of the part before adjustment is Δ L, the boundary of the produced part is extended by Δ L from the theoretically calculated boundary of the part before adjustment, the theoretically calculated weld distance of two parts before adjustment is d, and the weld distance between two produced parts is the theoretically calculated weld distance d.
9. The part of claim 8, wherein the part is a butt joint of a vehicle frame structure.
10. The part of claim 8, wherein the part is a T-joint of a vehicle body structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111037451.9A CN114029641A (en) | 2021-09-06 | 2021-09-06 | Part welding reversible deformation adjusting method and part |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111037451.9A CN114029641A (en) | 2021-09-06 | 2021-09-06 | Part welding reversible deformation adjusting method and part |
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| CN114029641A true CN114029641A (en) | 2022-02-11 |
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| CN202111037451.9A Pending CN114029641A (en) | 2021-09-06 | 2021-09-06 | Part welding reversible deformation adjusting method and part |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115805381A (en) * | 2023-01-03 | 2023-03-17 | 中国原子能科学研究院 | Welding deformation prediction method |
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| CN1554508A (en) * | 2003-12-26 | 2004-12-15 | 东方汽轮机厂 | Deformation control method for large structure piece welding |
| CN206065741U (en) * | 2016-08-11 | 2017-04-05 | 南京瑞科特电气有限责任公司 | A kind of electric power equipment cabinet board material splice formula welding tooling |
| CN108941875A (en) * | 2018-09-05 | 2018-12-07 | 中国航发动力股份有限公司 | A kind of processing method controlling annular Thin-Wall Outer Casing welding deformation amount |
| AU2020103879A4 (en) * | 2020-12-03 | 2021-02-11 | Zhimin Li | method for predicting welding deformation of key control points of EMU train body |
| CN112846554A (en) * | 2020-12-31 | 2021-05-28 | 中铁宝桥集团有限公司 | Top plate unit assembly welding precision control method of ultra-wide steel box girder |
-
2021
- 2021-09-06 CN CN202111037451.9A patent/CN114029641A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1554508A (en) * | 2003-12-26 | 2004-12-15 | 东方汽轮机厂 | Deformation control method for large structure piece welding |
| CN206065741U (en) * | 2016-08-11 | 2017-04-05 | 南京瑞科特电气有限责任公司 | A kind of electric power equipment cabinet board material splice formula welding tooling |
| CN108941875A (en) * | 2018-09-05 | 2018-12-07 | 中国航发动力股份有限公司 | A kind of processing method controlling annular Thin-Wall Outer Casing welding deformation amount |
| AU2020103879A4 (en) * | 2020-12-03 | 2021-02-11 | Zhimin Li | method for predicting welding deformation of key control points of EMU train body |
| CN112846554A (en) * | 2020-12-31 | 2021-05-28 | 中铁宝桥集团有限公司 | Top plate unit assembly welding precision control method of ultra-wide steel box girder |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115805381A (en) * | 2023-01-03 | 2023-03-17 | 中国原子能科学研究院 | Welding deformation prediction method |
| CN115805381B (en) * | 2023-01-03 | 2024-03-22 | 中国原子能科学研究院 | Welding deformation prediction method |
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Application publication date: 20220211 |