CN111250902A - Welding method and positioning tool for front support beam of aerospace seat - Google Patents

Welding method and positioning tool for front support beam of aerospace seat Download PDF

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Publication number
CN111250902A
CN111250902A CN201910980747.0A CN201910980747A CN111250902A CN 111250902 A CN111250902 A CN 111250902A CN 201910980747 A CN201910980747 A CN 201910980747A CN 111250902 A CN111250902 A CN 111250902A
Authority
CN
China
Prior art keywords
welding
supporting seat
supporting
seat
positioning tool
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910980747.0A
Other languages
Chinese (zh)
Inventor
傅小兵
宋庆宏
张利
陈家清
龚佑胜
周梅生
史吉勇
朱志慧
黄剑峰
董乐
彭建龙
郑雪峰
朱全明
朱利强
吴云
熊建伟
廖有彬
谢志琳
吴文敏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Helicopter Research and Development Institute
Original Assignee
China Helicopter Research and Development Institute
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Helicopter Research and Development Institute filed Critical China Helicopter Research and Development Institute
Priority to CN201910980747.0A priority Critical patent/CN111250902A/en
Publication of CN111250902A publication Critical patent/CN111250902A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K31/00Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/0426Fixtures for other work
    • B23K37/0435Clamps
    • B23K37/0443Jigs

Abstract

The invention belongs to the machining welding technology; the welding method is to combine and position each product part on a positioning tool for spot welding; welding is carried out in a left-right symmetrical mode during welding, and welding is continued after products are placed on a tool after the products are cooled to room temperature at welding positions which cannot be finished on the tool; then, repositioning the welded product on a tool, measuring the welding deformation, and recording; and finally, manually correcting the deformed part to ensure that the product size meets the technical requirements of drawings. Wherein the location frock comprises supporting platform and setting on supporting platform be first supporting seat, second supporting seat, third supporting seat, fourth supporting seat, fifth supporting seat. The method and the welding fixture can ensure the quality of the welding seam of the product, control the welding deformation and complete batch welding tasks; greatly improving the welding efficiency and the welding quality.

Description

Welding method and positioning tool for front support beam of aerospace seat
Technical Field
The invention belongs to the machining welding technology; in particular to a welding method and a positioning tool for a front support beam of an aerospace seat, which are mainly applied to the process welding of the front support beam of a certain aerospace seat.
Background
The front support beam is an important structural part of a certain type of aerospace seat, the external dimension of the front support beam is 537 multiplied by 475 multiplied by 94mm, and the structure is shown in figure 1; the seat is formed by welding a front beam bent pipe, a left joint, a right joint, a left support and a right support and other auxiliary machining parts, is a key force bearing part of the seat, has high structural size requirement, has high welding quality requirement among the front beam bent pipe, the left joint, the right joint, the left support and the right support, and needs to strictly control welding deformation and welding seam quality. The front supporting beam part is made of 30CrMnSiA and is formed by pipe fittings and machining parts and welded by argon arc welding, the welding seams of the parts are concentrated, and the welding deformation is difficult to control within 1 mm.
Disclosure of Invention
The purpose of the invention is as follows: a set of positioning welding method is provided to solve the problem of large deformation in the welding process and ensure the strength and quality of the welding seam.
The technical scheme of the invention is as follows: a method for welding a front support beam of an aerospace seat comprises the steps of firstly, combining and positioning product parts on a positioning tool, and performing positioning spot welding; secondly, welding in a left-right symmetrical mode, and continuing to weld a welding part which cannot be welded on the tool after the product is cooled to room temperature and then put on the tool; thirdly, repositioning the welded product on a tool, measuring the welding deformation and recording; and fourthly, manually correcting the deformed part to ensure that the product size meets the technical requirements of drawings.
The welding positioning tool for realizing the welding method comprises a supporting platform, and a first supporting seat, a second supporting seat, a third supporting seat, a fourth supporting seat and a fifth supporting seat which are arranged on the supporting platform, wherein the third supporting seat, the fourth supporting seat and the fifth supporting seat are sequentially arranged on the central line of the supporting platform, and the first supporting seat and the second supporting seat are respectively and symmetrically arranged on two sides of the central line; the two second supporting seats are matched to support the front beam bent pipe, and meanwhile, the front and rear positions of the front beam bent pipe are limited by the third supporting seat; the two first supporting seats respectively support the left joint and the right joint, and the fourth supporting seat is matched with the fifth supporting seat to support the left supporting piece and the right supporting piece.
The invention has the beneficial effects that: by adopting the method and the welding fixture, the quality of the welding seam of the product can be ensured, the welding deformation is controlled, and batch welding tasks can be completed; the tool clamp is simple in structure, convenient to operate, reasonable and reliable in part positioning and clamping, reduces the operation difficulty of workers, and guarantees the welding quality of products.
Drawings
Figure 1 is a schematic view of the front support beam construction,
FIG. 2 is a schematic view of a welding positioning tool,
FIG. 3 is a schematic view of the front support beam and the positioning tool,
FIGS. 4-8 are schematic structural views of the support seats of the positioning tool;
description of numbering: 1-left and right supporting pieces, 2-left and right box-shaped pieces, 3-left and right corner boxes, 4-front beam bent pipes, 5-left and right reinforcing pieces, 6-left and right joints, 7-first supporting seat, 8-second supporting seat, 9-third supporting seat, 10-fourth supporting seat, 11-fifth supporting seat and 12-supporting platform.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A method for welding a front support beam of an aerospace seat comprises the steps of firstly, combining and positioning product parts on a positioning tool, and performing positioning spot welding; secondly, welding in a left-right symmetrical mode, and continuing to weld a welding part which cannot be welded on the tool after the product is cooled to room temperature and then put on the tool; thirdly, repositioning the welded product on a tool, measuring the welding deformation and recording; and fourthly, manually correcting the deformed part to ensure that the product size meets the technical requirements of drawings. In the specific implementation process of the method, the adopted positioning tool can be in various forms.
One of which is shown in fig. 2. The positioning tool applied to the welding method comprises a supporting platform 12 and supporting seats arranged on the supporting platform, wherein each supporting seat is fixed on the supporting platform through a screw, 4 mounting holes are formed in each supporting seat in order to further guarantee the stable connection, the four mounting holes form a square shape, one group of mounting holes arranged in opposite angles are used as screw mounting holes, and the other group of mounting holes are used as pin holes.
In order to more stably support the front support beam of the aerospace seat, five specific forms are correspondingly designed for the support seats, and different parts of the front support beam are respectively supported, wherein the specific five support seats comprise a first support seat 7, a second support seat 8, a third support seat 9, a fourth support seat 10 and a fifth support seat 11, the third support seat 9, the fourth support seat 10 and the fifth support seat 11 are sequentially arranged on the central line position of a support platform 12, and the first support seat 7 and the second support seat 8 are respectively and symmetrically arranged on two sides of the central line; the two second supporting seats 8 are matched to support the front beam elbow 4, and meanwhile, the front and rear positions of the front beam elbow are limited by the third supporting seat 9; the two first supporting seats 7 respectively support the left joint 6 and the right joint 6, and the fourth supporting seat 10 is matched with the fifth supporting seat 11 to support the left support member and the right support member 1.
The concrete structure of the five types of support seats is shown in fig. 4-8, wherein two screw mounting holes and two positioning pin holes are arranged at the bottom of each support seat. Every supporting seat all includes bottom plate and riser and constitutes, still strengthens through setting up the strengthening rib between riser and the bottom plate.
Specifically, the height of the upper supporting platform surface of the two first supports 7 can be adjusted to adapt to left and right joints 6 with different sizes. The bottom of the supporting platform 12 is provided with channel steel for supporting the platform, and the form of the channel steel is convenient for installing and adjusting each supporting seat. The section of the channel steel is U-shaped, so that the structural rigidity of the platform can be obviously improved.
The upper ends of the two second supporting seats 8 are arranged in a step shape, the tops of the steps are also provided with straight sections, the straight sections are provided with horizontal through grooves, and the straight sections and the horizontal through grooves are matched through adjusting nuts and are used for clamping the front beam bent pipe 4.
The positioning tool greatly reduces the physical force of a welding worker in the welding implementation process, is simple and practical through practice, is convenient for the worker to operate, can control the deformation of an integral welding part within a small range, and greatly improves the welding efficiency and the welding quality.
The foregoing is merely a detailed description of the embodiments of the present invention, and some of the conventional techniques are not detailed. The scope of the present invention is not limited thereto, and any changes or substitutions that can be easily made by those skilled in the art within the technical scope of the present invention will be covered by the scope of the present invention. The protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (9)

1. A method for welding a front support beam of an aerospace seat is characterized by comprising the following steps: the method comprises the steps of firstly, assembling and positioning product parts on a positioning tool for spot welding; secondly, welding in a left-right symmetrical mode, and continuing to weld a welding part which cannot be welded on the tool after the product is cooled to room temperature and then put on the tool; thirdly, repositioning the welded product on a tool, measuring the welding deformation and recording; and fourthly, manually correcting the deformed part to ensure that the product size meets the technical requirements of drawings.
2. A positioning tool for realizing the welding method of the front support beam of the space seat as claimed in claim 1 is characterized in that: the positioning tool comprises a supporting platform and a first supporting seat, a second supporting seat, a third supporting seat, a fourth supporting seat and a fifth supporting seat which are arranged on the supporting platform, wherein the third supporting seat, the fourth supporting seat and the fifth supporting seat are sequentially arranged on the central line of the supporting platform, and the number of the first supporting seat and the second supporting seat is two and are respectively and symmetrically arranged on two sides of the central line; the two second supporting seats are matched to support the front beam bent pipe, and meanwhile, the front and rear positions of the front beam bent pipe are limited by the third supporting seat; the two first supporting seats respectively support the left joint and the right joint, and the fourth supporting seat is matched with the fifth supporting seat to support the left supporting piece and the right supporting piece.
3. The positioning tool according to claim 2, characterized in that: the height of the upper supporting table surface of the two first supports is adjustable.
4. The positioning tool according to claim 2, characterized in that: the bottom of the supporting platform is provided with a channel steel with a U-shaped section.
5. The positioning tool according to claim 2, characterized in that: the upper ends of the two second supporting seats are arranged in a step shape, the top of each step is also provided with a straight section, the straight section is provided with a horizontal through groove, and the straight section and the horizontal through groove are matched through an adjusting nut and are used for clamping the front beam elbow.
6. The positioning tool according to claim 2, characterized in that: every supporting seat bottom all is provided with four mounting holes, and four mounting holes constitute squarely.
7. The positioning tool according to claim 6, characterized in that: among the four mounting holes forming the square shape, one group of mounting holes arranged diagonally is used as screw mounting holes, and the other group is used as positioning pin holes.
8. The positioning tool according to claim 2, characterized in that: every supporting seat all includes bottom plate and riser constitution.
9. The positioning tool according to claim 5, characterized in that: and reinforcing ribs are arranged between the vertical plates and the bottom plate.
CN201910980747.0A 2019-10-15 2019-10-15 Welding method and positioning tool for front support beam of aerospace seat Pending CN111250902A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910980747.0A CN111250902A (en) 2019-10-15 2019-10-15 Welding method and positioning tool for front support beam of aerospace seat

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910980747.0A CN111250902A (en) 2019-10-15 2019-10-15 Welding method and positioning tool for front support beam of aerospace seat

Publications (1)

Publication Number Publication Date
CN111250902A true CN111250902A (en) 2020-06-09

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CN201910980747.0A Pending CN111250902A (en) 2019-10-15 2019-10-15 Welding method and positioning tool for front support beam of aerospace seat

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112224441A (en) * 2020-09-25 2021-01-15 中国直升机设计研究所 Helicopter is synthesized and is hung roof beam assembly quality

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Publication number Priority date Publication date Assignee Title
JPH06344185A (en) * 1993-06-11 1994-12-20 Nippon Steel Weld Prod & Eng Co Ltd Positioning device for bar stock
CN202622233U (en) * 2012-03-29 2012-12-26 浙江吉利汽车研究院有限公司 Flexible line fixture five-face supporting plate unit
CN103753079A (en) * 2013-12-20 2014-04-30 柳州杰龙汽车零部件制造有限公司 Welding tools for lower support of lifting oil cylinder of dumper truck
CN104959725A (en) * 2015-06-08 2015-10-07 航天材料及工艺研究所 Electron beam welding deformation control method of large variable-thickness component
CN105345296A (en) * 2015-12-11 2016-02-24 重庆创力工贸有限公司 Seat frame assembly welding method for front row of seats
CN105666007A (en) * 2016-04-07 2016-06-15 镇江远大传动机械有限公司 Fixture for processing inner wall of engaging lug on weld yoke based on processing center
CN106112371A (en) * 2016-08-27 2016-11-16 宁波明望汽车饰件有限公司 For producing the welding tooling of automobile chair frame
CN207171327U (en) * 2017-07-28 2018-04-03 无锡艾伯赛精密机械有限公司 A kind of weld jig of children's seat skeleton
CN208408984U (en) * 2018-04-17 2019-01-22 柳州市盛安汽车配件制造有限公司 Automobile rear left seat back skeleton welding tooling

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06344185A (en) * 1993-06-11 1994-12-20 Nippon Steel Weld Prod & Eng Co Ltd Positioning device for bar stock
CN202622233U (en) * 2012-03-29 2012-12-26 浙江吉利汽车研究院有限公司 Flexible line fixture five-face supporting plate unit
CN103753079A (en) * 2013-12-20 2014-04-30 柳州杰龙汽车零部件制造有限公司 Welding tools for lower support of lifting oil cylinder of dumper truck
CN104959725A (en) * 2015-06-08 2015-10-07 航天材料及工艺研究所 Electron beam welding deformation control method of large variable-thickness component
CN105345296A (en) * 2015-12-11 2016-02-24 重庆创力工贸有限公司 Seat frame assembly welding method for front row of seats
CN105666007A (en) * 2016-04-07 2016-06-15 镇江远大传动机械有限公司 Fixture for processing inner wall of engaging lug on weld yoke based on processing center
CN106112371A (en) * 2016-08-27 2016-11-16 宁波明望汽车饰件有限公司 For producing the welding tooling of automobile chair frame
CN207171327U (en) * 2017-07-28 2018-04-03 无锡艾伯赛精密机械有限公司 A kind of weld jig of children's seat skeleton
CN208408984U (en) * 2018-04-17 2019-01-22 柳州市盛安汽车配件制造有限公司 Automobile rear left seat back skeleton welding tooling

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Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112224441A (en) * 2020-09-25 2021-01-15 中国直升机设计研究所 Helicopter is synthesized and is hung roof beam assembly quality

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Application publication date: 20200609