CN110625282A - Process splitting method for large all-welded low-rigidity structural part - Google Patents
Process splitting method for large all-welded low-rigidity structural part Download PDFInfo
- Publication number
- CN110625282A CN110625282A CN201910842216.5A CN201910842216A CN110625282A CN 110625282 A CN110625282 A CN 110625282A CN 201910842216 A CN201910842216 A CN 201910842216A CN 110625282 A CN110625282 A CN 110625282A
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- China
- Prior art keywords
- process assembly
- welded
- frame process
- assembly
- structural part
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Classifications
-
- 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
-
- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
Abstract
The invention belongs to the technical field of structural member processes, and particularly relates to a process splitting method for a large all-welded low-rigidity structural member. The method splits a large-scale all-welded low-rigidity structural part into a frame process assembly and a fork frame process assembly, and respectively welds each process assembly after splitting to disperse welding amount, so that the split structure is relatively stable and easy to process, and welding deformation is controlled by a self-made tool; after being respectively welded, the fork frame process assembly and the frame process assembly are respectively annealed, so that the problem that the annealing cannot be performed due to overlarge volume is solved. The two assemblies are respectively processed, the shape is regular and the assembly is easy to clamp; the two components are respectively processed, the size is small, bottleneck equipment is not occupied, resources are saved, and the cost is reduced.
Description
Technical Field
The invention belongs to the technical field of structural member processes, and particularly relates to a process splitting method for a large all-welded low-rigidity structural member.
Background
For the existing large-scale all-welded low-rigidity frame structural member, the vertical height is 1715mm, the width is 1700mm, and the thickness is 802 mm. The whole frame is of an aluminum alloy all-welded structure, and the welding amount is extremely large. The frame is composed of plates and ribs, and because the inner cavities are all electric fitting products, the whole frame is required to be of an overhead structure, so that the rigidity of the frame is extremely low. Because the product is designed and input into an integral welding structure and is not provided with a multi-component structure, the integral welding has huge overall welding amount and uncontrollable welding deformation according to the product structure; after the whole body is welded, annealing treatment cannot be carried out due to large volume; the residual machining allowance after the whole body is welded is difficult to machine, and partial inner cavity characteristics cannot be machined; the whole body is welded and then needs to be processed by large-scale equipment, so that bottleneck resources are occupied and the like. Therefore, in order to realize that the overall structure of a welding product meets the pattern requirement, the process splitting method for the large-scale all-welded low-rigidity structural part is provided.
Disclosure of Invention
Technical problem to be solved
The invention provides a process splitting method for a large all-welded low-rigidity structural part, which aims to solve the technical problems of how to reduce welding amount and machining amount and control integral welding deformation.
(II) technical scheme
In order to solve the technical problem, the invention provides a process splitting method for a large all-welded low-rigidity structural part, which comprises the steps of splitting the large all-welded low-rigidity structural part into a frame process assembly and a fork frame process assembly, and respectively welding each process assembly after splitting; respectively annealing the frame process assembly and the fork frame process assembly after welding; and (4) performing combined welding on the frame process assembly and the fork frame process assembly which are respectively subjected to annealing treatment to form a large-scale all-welded low-rigidity structural member.
Further, after the frame process assembly and the fork frame process assembly which are respectively annealed are combined and welded, residual stress is released by means of artificial aging and vibration.
(III) advantageous effects
The invention provides a process splitting method for a large all-welded low-rigidity structural part, which splits the large all-welded low-rigidity structural part into a frame process assembly and a fork frame process assembly, and respectively welds each process assembly after splitting to disperse welding amount, so that the split structure is relatively stable and easy to process, and welding deformation is controlled by a self-made tool; after being respectively welded, the fork frame process assembly and the frame process assembly are respectively annealed, so that the problem that the annealing cannot be performed due to overlarge volume is solved. The two assemblies are respectively processed, the shape is regular and the assembly is easy to clamp; the two components are respectively processed, the size is small, bottleneck equipment is not occupied, resources are saved, and the cost is reduced.
Drawings
FIG. 1 is a schematic view of a large all-welded low stiffness structural member to which embodiments of the present invention are directed;
FIG. 2 is a schematic structural diagram of a disassembled frame process assembly according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a split fork processing assembly according to an embodiment of the present invention.
Detailed Description
In order to make the objects, contents and advantages of the present invention clearer, the following detailed description of the embodiments of the present invention will be made in conjunction with the accompanying drawings and examples.
The embodiment provides a process splitting method for a large all-welded low-rigidity structural part, which splits the large all-welded low-rigidity structural part into a frame process assembly (shown in fig. 2) and a fork frame process assembly (shown in fig. 3) through analysis of products. After the assembly is disassembled, the process assemblies are respectively welded so as to disperse welding amount, the structure after the disassembly is relatively stable and easy to process, and welding deformation is controlled by a self-made tool; after being respectively welded, the fork frame process assembly and the frame process assembly are respectively annealed, so that the problem that the annealing cannot be performed due to overlarge volume is solved. And finally, performing combined welding on the frame process assembly and the fork frame process assembly which are respectively subjected to annealing treatment, releasing residual stress by an artificial aging and vibration method, and finally performing important size processing to ensure the product requirement to form a large-scale all-welded low-rigidity structural member.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (2)
1. A process splitting method for a large all-welded low-rigidity structural part is characterized by comprising the steps of splitting the large all-welded low-rigidity structural part into a frame process assembly and a fork frame process assembly, and respectively welding each process assembly after splitting; respectively annealing the frame process assembly and the fork frame process assembly after welding; and (4) performing combined welding on the frame process assembly and the fork frame process assembly which are respectively subjected to annealing treatment to form a large-scale all-welded low-rigidity structural member.
2. The process resolution method of claim 1, wherein after the frame process assembly and the fork process assembly are welded together after annealing treatment, residual stress is released by artificial aging and vibration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910842216.5A CN110625282A (en) | 2019-09-06 | 2019-09-06 | Process splitting method for large all-welded low-rigidity structural part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910842216.5A CN110625282A (en) | 2019-09-06 | 2019-09-06 | Process splitting method for large all-welded low-rigidity structural part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110625282A true CN110625282A (en) | 2019-12-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910842216.5A Pending CN110625282A (en) | 2019-09-06 | 2019-09-06 | Process splitting method for large all-welded low-rigidity structural part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110625282A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5453643A (en) * | 1977-10-06 | 1979-04-27 | Kawasaki Heavy Ind Ltd | Electroslag welding method for box-type sectioned structural member |
| CN104526175A (en) * | 2014-12-24 | 2015-04-22 | 沈阳航天新星机电有限责任公司 | Method for controlling welding deformation |
| CN107009059A (en) * | 2017-06-15 | 2017-08-04 | 西安北方光电科技防务有限公司 | A kind of method for controlling nacelle structural member welding deformation |
| CN107201428A (en) * | 2017-03-08 | 2017-09-26 | 中国航发北京航空材料研究院 | A kind of heat treatment method of superhigh intensity steel construction piece |
-
2019
- 2019-09-06 CN CN201910842216.5A patent/CN110625282A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5453643A (en) * | 1977-10-06 | 1979-04-27 | Kawasaki Heavy Ind Ltd | Electroslag welding method for box-type sectioned structural member |
| CN104526175A (en) * | 2014-12-24 | 2015-04-22 | 沈阳航天新星机电有限责任公司 | Method for controlling welding deformation |
| CN107201428A (en) * | 2017-03-08 | 2017-09-26 | 中国航发北京航空材料研究院 | A kind of heat treatment method of superhigh intensity steel construction piece |
| CN107009059A (en) * | 2017-06-15 | 2017-08-04 | 西安北方光电科技防务有限公司 | A kind of method for controlling nacelle structural member welding deformation |
Non-Patent Citations (1)
| Title |
|---|
| 付平 等: "《机械制造技术》", 30 June 2018, 北京理工大学出版社 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191231 |
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| RJ01 | Rejection of invention patent application after publication |