CN107931878B - Assembly welding process for box beam inserting structure framework - Google Patents
Assembly welding process for box beam inserting structure framework Download PDFInfo
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- CN107931878B CN107931878B CN201711119219.3A CN201711119219A CN107931878B CN 107931878 B CN107931878 B CN 107931878B CN 201711119219 A CN201711119219 A CN 201711119219A CN 107931878 B CN107931878 B CN 107931878B
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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
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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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/28—Beams
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- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The utility model provides an assembly welding technology of box roof beam grafting structure framework relates to railway passenger train bogie frame welding technical field, and this technology is split into two parts with the crossbeam: one part is a non-closed box body consisting of an upper cover plate, an outer side transverse vertical plate, an inner side transverse vertical plate, a longitudinal vertical plate and a rib plate, namely a semi-finished beam, and the other part is a lower cover plate of the beam; through the reasonable welding sequence and the adjustment of the welding quantity, the deformation of the welded semi-finished beam is ensured to be stabilized within an ideal numerical range; and then assembling the semi-finished beam and the side beam, completing tack welding, assembling a lower cover plate of the cross beam, integrally welding the residual welding seams of the cross beam and the welding seams at the joint of the cross beam and the side beam, and finally completing the assembly welding of the box-type beam splicing structure framework. The invention can control the deflection deformation of the beam vertical plate, and the welded beam does not need to be machined, thereby improving the production quality and the production efficiency.
Description
Technical Field
The invention relates to the technical field of welding of bogie frames of railway vehicles, in particular to an assembly welding process of a box beam splicing structure framework.
Background
At present, a railway passenger car bogie welding framework mainly has two structures: an H-shaped welding structure for butt joint of a box-type side beam and a tubular cross beam; and the other H-shaped welding structure is formed by splicing a box-type side beam and a box-type cross beam. The box-type transverse and side beam splicing structure is excellent in bending resistance and section change of the joint of the transverse and side beams, but the structure is complex, welding deformation is difficult to control, and transverse and side beams are difficult to assemble. In actual production, before the transverse beam and the side beam are assembled into a framework, the length size is ensured by machining the two ends of the transverse beam, and meanwhile, welding seam grooves are machined at the two ends of a vertical plate of the transverse beam. Even if the welding seam bevel at the end of the vertical plate of the cross beam is uneven after the cross beam is machined due to the existence of transverse bending and vertical deflection deformation; in the assembling process of the transverse beam and the side beam, the transverse beam and the side beam are often interfered due to the bending deformation of the vertical plates at two ends of the transverse beam, the interference part needs to be ground on site and then assembled smoothly, and the quality and the production efficiency of a framework are seriously influenced.
Disclosure of Invention
The invention provides an assembly welding process of a box beam insertion structure framework, which aims to solve the technical problems that the assembly of a transverse side beam is difficult due to the difficulty in welding deformation control in the assembly welding process of the box beam insertion structure framework, and interference is generated in the assembly process of the transverse side beam due to the uneven welding seam bevel at the end of a vertical plate of a transverse beam after the transverse beam is machined due to the existence of transverse bending and vertical bending deformation.
The technical scheme adopted by the invention for solving the technical problem is as follows:
an assembly welding process of a box beam splicing structure framework comprises the following steps:
step one, welding of side beams and welding of semi-finished cross beams: the welding of all welding seams of the side beam is completed according to a conventional welding sequence, and meanwhile, the semi-finished beam is welded according to the following sequence:
assembling an upper cover plate, an outer side transverse vertical plate, an inner side transverse vertical plate, a longitudinal vertical plate and a rib plate of the cross beam, and completing tack welding; then, welding the assembly A formed by the positioning welding, wherein during welding, the welding of a transverse seam a related to an upper cover plate in the cavity of the assembly A is firstly completed, then the welding of a vertical seam b related to an outer side transverse vertical plate and an inner side transverse vertical plate is completed, and finally, according to the deformation conditions of the outer side transverse vertical plate and the inner side transverse vertical plate, a welding seam c outside the cavity at the connecting position of the outer side transverse vertical plate and the inner side transverse vertical plate and the upper cover plate is partially welded, namely only the welding seam c is welded for bottoming, so that the vertical flexural deformation of the outer side transverse vertical plate and the inner side transverse vertical plate is within 1mm, and the assembly welding of a semi-finished beam is completed;
step two, inserting and assembling the semi-finished beam and the side beam obtained in the step one, completing tack welding, then completing welding of the semi-finished beam and a welding seam d inside a cavity of an inserting part of the side beam, and then completing welding of a welding seam e at a connecting part of the side beam and the upper cover plate;
and step three, assembling the lower cover plate of the cross beam and the assembly obtained by the assembly welding in the step two, completing the tack welding, and then integrally welding the residual welding seams g between the outer side transverse vertical plate, the inner side transverse vertical plate and the upper cover plate, the welding seams k between the outer side transverse vertical plate, the inner side transverse vertical plate and the lower cover plate, and the transverse welding seam f and the vertical welding seam h outside the joint of the cross beam and the side beam, so as to complete the assembly welding of the side beam and the cross beam.
The invention has the beneficial effects that: the process ensures the straightness and length dimension of the vertical cross beam plates along the length direction by controlling the flexural deformation of the vertical cross beam plates, namely the width and height directions of the cross beam are almost free from deformation, so that the assembly requirements of the cross beam and the side beam are met after the welding of the cross beam is finished, and the welded cross beam does not need to be machined; meanwhile, the weld groove at the end of the vertical plate of the cross beam is finished when the single vertical plate is machined, and the machining process after the cross beam is welded is cancelled, so that the quality problems of difficult positioning, uneven end groove, interference in assembling of the cross beam and the side beam and the like in the machining process of the cross beam are avoided, and the welding quality of the framework is improved, the assembling difficulty of the framework is reduced, the manufacturing period of the framework is shortened, and the manufacturing cost of the framework is reduced.
Drawings
Fig. 1 is a schematic structural view of a side member of a box beam splicing structural frame.
Fig. 2 is a schematic structural view of a cross beam semi-finished product of the box beam splicing structural framework.
Fig. 3 is a schematic top view of the structure of fig. 2.
Fig. 4 is a schematic view of a welded structure of the side member and cross member semi-finished product.
Fig. 5 is a schematic view of a welded structure of the semi-finished side member and cross member from another perspective.
FIG. 6 is a schematic view of the side and cross members after the semi-finished products are welded and turned over.
Fig. 7 is a structural schematic diagram of a complete framework formed by assembling and welding the lower cover plate of the cross beam with the side beam and the cross beam.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 7, the assembly welding process of the box beam splicing structure frame of the invention comprises the following steps:
step one, welding of the side beam 1 and welding of a semi-finished beam 2: the welding of all the welding seams of the side beam 1 is completed according to the conventional welding sequence, and meanwhile, the semi-finished product of the cross beam 2 is welded according to the following sequence:
assembling an upper cover plate 2-1, an outer lateral vertical plate 2-2, an inner lateral vertical plate 2-3, a longitudinal vertical plate 2-4 and a rib plate 2-5 of a cross beam 2, and completing tack welding; then, welding the assembly A formed by the positioning welding, wherein during welding, the welding of a transverse seam a related to the upper cover plate 2-1 inside the cavity of the assembly A is firstly completed, then the welding of a vertical seam b related to the outer lateral vertical plate 2-2 and the inner lateral vertical plate 2-3 is completed, and finally, according to the deformation conditions of the outer lateral vertical plate 2-2 and the inner lateral vertical plate 2-3, the welding seam c outside the cavity at the connecting position of the outer lateral vertical plate 2-2 and the inner lateral vertical plate 2-3 and the upper cover plate 2-1 is partially welded, namely, only the welding seam c bottoming layer (namely the first layer in all three-layer welding) is completed, so that the vertical flexural deformation of the outer lateral vertical plate 2-2 and the inner lateral vertical plate 2-3 is within 1mm, and the assembly welding of the semi-finished product of the cross beam 2 is completed;
step two, inserting and assembling the semi-finished product of the cross beam 2 obtained in the step one with the side beam 1, completing tack welding, then completing welding of a welding seam d in a cavity at the inserting part of the semi-finished product of the cross beam 2 and the side beam 1, and then completing welding of a welding seam e at the connecting part of the side beam 1 and the upper cover plate 2-1;
and step three, assembling the lower cover plate 2-6 of the cross beam 2 and the assembly obtained by the assembly welding in the step two, completing the tack welding, and then integrally welding the residual welding seams g between the outer side transverse vertical plate 2-2, the inner side transverse vertical plate 2-3 and the upper cover plate 2-1, the welding seams k between the outer side transverse vertical plate 2-2, the inner side transverse vertical plate 2-3 and the lower cover plate 2-6, and the transverse welding seam f and the vertical welding seam h outside the joint of the cross beam 2 and the side beam 1, so as to complete the assembly welding of the side beam 1 and the cross beam 2.
The assembly welding process of the box-type beam inserting structure framework is different from the assembly welding process of the existing box-type beam, and the assembly welding process of the invention is to split the beam 2 into two parts: one part is a non-closed box body which is a semi-finished beam and consists of an upper cover plate 2-1, an outer lateral vertical plate 2-2, an inner lateral vertical plate 2-3, a longitudinal vertical plate 2-4 and a rib plate 2-5, and the other part is a lower cover plate 2-6 of the beam. Through the reasonable welding sequence and the adjustment of the welding quantity, for example, the welding seams of the upper cover plate 2-1 of the crossbeam, the outer lateral vertical plate 2-2 and the inner lateral vertical plate 2-3 are not completely welded, so that the deformation of the semi-finished crossbeam after welding is ensured to be stabilized in an ideal numerical range. And then assembling the semi-finished beam and the side beam 1, completing tack welding, assembling the lower cover plates 2-6 of the beam, integrally welding the residual welding seams of the beam 2 and the welding seams at the joint of the beam 2 and the side beam 1, and finally completing the assembly welding of the box-type beam splicing structure framework.
The assembly welding process can control the flexural deformation of the beam and the vertical plate, and the welded beam does not need to be machined, so that the quality problems of difficult positioning, uneven end grooves, assembly interference of the transverse beam and the side beam and the like in the beam machining process are avoided, and the production quality and the production efficiency are improved.
Claims (1)
1. The assembly welding process of the box-type beam inserting structure framework is characterized by comprising the following steps of:
step one, welding of the side beam (1) and welding of a semi-finished beam (2): the welding of all welding seams of the side beam (1) is completed according to a conventional welding sequence, and meanwhile, the semi-finished product of the cross beam (2) is welded according to the following sequence:
assembling an upper cover plate (2-1) of the cross beam (2), an outer side transverse vertical plate (2-2), an inner side transverse vertical plate (2-3), a longitudinal vertical plate (2-4) and a rib plate (2-5), and completing tack welding; then the assembly A formed by the positioning welding is welded, when in welding, the welding of the transverse seam a related to the upper cover plate (2-1) in the cavity of the assembly A is firstly completed, then the welding of the vertical seam b related to the outer side transverse vertical plate (2-2) and the inner side transverse vertical plate (2-3) is completed, and finally, according to the deformation conditions of the outer side transverse vertical plate (2-2) and the inner side transverse vertical plate (2-3), the welding seam c outside the cavity at the connecting position of the outer lateral vertical plate (2-2), the inner lateral vertical plate (2-3) and the upper cover plate (2-1) is partially welded, only completing the welding of the bottom layer of the welding seam c, so that the vertical deflection deformation of the outer side transverse vertical plate (2-2) and the inner side transverse vertical plate (2-3) is within 1mm, and completing the assembly welding of the semi-finished product of the beam (2);
step two, splicing and assembling the semi-finished product of the cross beam (2) obtained in the step one with the side beam (1) and completing tack welding, then completing welding of a welding seam d inside a cavity of a splicing part of the semi-finished product of the cross beam (2) and the side beam (1), and then completing welding of a welding seam e at a connecting part of the side beam (1) and the upper cover plate (2-1);
and step three, assembling a lower cover plate (2-6) of the cross beam (2) and the assembly obtained by the assembly welding in the step two, completing the tack welding, then integrally welding the residual welding seams g between the outer side transverse vertical plate (2-2), the inner side transverse vertical plate (2-3) and the upper cover plate (2-1), the welding seams k between the outer side transverse vertical plate (2-2), the inner side transverse vertical plate (2-3) and the lower cover plate (2-6), and the transverse welding seam f and the vertical welding seam h outside the joint of the cross beam (2) and the side beam (1), and completing the assembly welding of the side beam (1) and the cross beam (2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711119219.3A CN107931878B (en) | 2017-11-14 | 2017-11-14 | Assembly welding process for box beam inserting structure framework |
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| CN201711119219.3A CN107931878B (en) | 2017-11-14 | 2017-11-14 | Assembly welding process for box beam inserting structure framework |
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| CN107931878A CN107931878A (en) | 2018-04-20 |
| CN107931878B true CN107931878B (en) | 2020-05-22 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109454353B (en) * | 2018-12-07 | 2020-07-28 | 中联重科股份有限公司 | Method for manufacturing box-type arm support for overhead operation |
| CN109365956B (en) * | 2018-12-07 | 2021-06-29 | 中车唐山机车车辆有限公司 | Welding method and welding device for continuous turning weld joint of bogie |
| CN110359941A (en) * | 2019-07-12 | 2019-10-22 | 天地科技股份有限公司 | A kind of top beam and the hydraulic support comprising the top beam |
| CN112570858B (en) * | 2019-09-30 | 2022-12-27 | 中车唐山机车车辆有限公司 | Special-shaped welding seam forming method, bogie welding method and vehicle |
| CN112404761B (en) * | 2020-10-23 | 2021-12-03 | 沃得精机(中国)有限公司 | Tailor welding method for upper cross beam of press machine |
| CN113500320B (en) * | 2021-07-29 | 2022-04-19 | 中车长春轨道客车股份有限公司 | Assembly welding process for front-end module of underframe of corrugated plate plug-in type box structure |
| CN113681115B (en) * | 2021-09-28 | 2022-08-02 | 中车长春轨道客车股份有限公司 | Process for assembling and welding brake pad supporting and hanging seat and framework of bogie of motor train unit with circumferential weld seam |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE19506586C1 (en) * | 1995-02-24 | 1996-08-14 | Waggonfabrik Talbot Gmbh & Co | Support structure, especially welded bogie for rail vehicle |
| CN103128457B (en) * | 2013-03-06 | 2016-05-04 | 唐山轨道客车有限责任公司 | Bogie frame and manufacture method thereof |
| CN103802852A (en) * | 2014-03-07 | 2014-05-21 | 唐山轨道客车有限责任公司 | Power bogie of tramcar |
| CN104942506B (en) * | 2015-06-18 | 2017-02-22 | 南车青岛四方机车车辆股份有限公司 | Low-floor bogie outside beam assembling and welding tool and assembling and welding method thereof |
| CN205273483U (en) * | 2015-11-25 | 2016-06-01 | 长春轨道客车股份有限公司 | Power truck framework device |
| CN106514028B (en) * | 2016-12-15 | 2019-02-12 | 中车北京二七车辆有限公司 | A kind of welding method of Bridge Erector five-axle steering frame welded frame side frame |
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