CN108723630B - Manufacturing method of spiral twisted box - Google Patents
Manufacturing method of spiral twisted box Download PDFInfo
- Publication number
- CN108723630B CN108723630B CN201810688538.4A CN201810688538A CN108723630B CN 108723630 B CN108723630 B CN 108723630B CN 201810688538 A CN201810688538 A CN 201810688538A CN 108723630 B CN108723630 B CN 108723630B
- Authority
- CN
- China
- Prior art keywords
- plates
- flange
- welding
- box type
- assembly
- 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.)
- Active
Links
Images
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
- B23K31/02—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 soldering or welding
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention relates to a manufacturing method of a spiral twisted box. The method comprises the steps of drawing a whole engineering model diagram, classifying the same type of components, respectively unfolding and lofting flange plates and web plates of different components, respectively carrying out subsection blanking on the unfolded flange plates and web plates, respectively carrying out hot press molding on the upper flange plate and the lower flange plate by adopting dies manufactured according to the distorted overall dimensions of box-type components, rolling and molding the web plates by adopting a plate rolling machine, respectively manufacturing simulated assembly molds according to different components, respectively placing the flange plates subjected to subsection press molding on a special assembly mold for splicing, welding and repairing to enable the flange plates to be tightly attached to the molds, then assembling the web plates on two sides and inner partition plates, welding inner partition plates, controlling the assembly precision by the assembly mold and the attachment gaps between the molds and the flange plates and the web plates of the box body, finally assembling other flange plates, matching and finishing, assembling and checking, welding box-type main seams, carrying out post-welding inspection, carrying out component derusting and coating. The invention can improve the production efficiency, ensure the production quality and meet the requirement of assembly precision.
Description
Technical Field
The invention relates to a method for manufacturing a steel structure box-type component, in particular to a method for manufacturing a spiral twisted box-type component.
Background
The roof structure of the pedestrian overpass adopts a space-time spiral structural form, has unique shape, the roof main keel is formed by 27 space-time twisted box-shaped roof main keels, the main keel has large twisting degree, the main keel is butted with the main keel during installation, the appearance is unique, the main part forming the roof main keel is the space-time spiral twisted box-shaped roof main keel, the space-time spiral twisted box-shaped roof main keel is formed by parts such as an upper flange plate, a lower flange plate, web plates at two sides, an inner partition plate and the like, the whole component is in a space-time spiral twisted shape, the precision required for the production of the spiral twisted box-shaped roof main keel during butt installation is high, and the space-time spiral twisted box-, the beam, the truss and other structures have great difference, the existing production and processing method of the space-time spiral twisted box type cannot meet the requirement of assembly precision, the production efficiency is low, the quality of the produced space-time spiral twisted box type is poor, and the situation that the installation is difficult or cannot be carried out due to the problem of size precision often occurs.
Disclosure of Invention
The invention aims to solve the problems, and provides a manufacturing method of a spiral twisted box type, which can improve the production efficiency, ensure the production quality and meet the assembly requirements.
The invention solves the problems and adopts the technical scheme that:
a manufacturing method of a spiral twisted box type comprises the following steps:
establishing all spiral twisted box type component models of the full bridge through three-dimensional drawing software, classifying and numbering all spiral twisted box type structural components of the full bridge, and respectively unfolding a flange plate and a web plate of each type of twisted spiral box type structural components;
step two, sectionally blanking the expanded flange plates and webs according to the capacity of processing equipment, numbering each section, and blanking each type of spiral twisted box type inner partition plate;
designing the outline dimension of a flange plate hot-pressing mold according to the segmented length of each type of spiral distortion box-shaped flange plate, wherein the hot-pressing mold consists of an upper mold and a lower mold, the section curvature of the upper mold and the lower mold is determined according to the distortion degree of the box body, and positioning devices for the hot-pressing flange plates are arranged on the upper mold and the lower mold;
step four, putting the segmented flange plates into a heating furnace, heating to a specified temperature, then performing hot-press forming through a hot-press die by using a press machine, and rolling the webs through a plate rolling machine;
designing and manufacturing each type of spiral twisted box type assembling mould, wherein the mould consists of a group of supports which are different in height, provided with positioning devices matched with the spiral twisted box type flange plates and the web plates and arranged at intervals;
sequentially laying the flange plates which are subjected to hot press molding and have certain warpage on a support of an assembly mould according to the serial numbers for assembly, checking a fit gap between the flange plates and the support of the assembly mould, welding each section of flange plate after meeting the requirements to form a whole flange plate, and repairing welding deformation on the assembly mould;
step seven, marking positioning lines of the webs on the two sides and the inner partition plate on the flange plate;
step eight, assembling the webs on the two sides and the inner partition plates according to positioning lines, checking fit gaps of the flange plates, the webs and an assembling mould, welding after the assembling deviation meets the requirement, repairing welding deformation on the assembling mould after welding, assembling another flange plate, welding and repairing welding deformation;
step nine, carrying out nondestructive inspection on the main welding line of the whole spiral twisted box-shaped component;
step ten, derusting and coating the whole spiral twisted box-shaped member.
Compared with the prior art, the invention adopting the technical scheme has the outstanding characteristics that:
the production efficiency can be improved, the production quality is ensured, and the requirement on assembly precision is met.
Secondly, the flange plate processed by the hot pressing die has small internal stress, high precision of the outline dimension, small welding deformation, easy control of the outline dimension and small internal stress.
Preferably, the further technical scheme of the invention is as follows:
and step two, sectionally blanking the unfolded flange plates and the web plates, and equally dividing the lengths of the sections so as to ensure the universality of the flange plates and the web plates.
And in the fourth step, the upper die is slowly pressed down during hot pressing, and the pressing is kept for at least ten minutes after the upper die is pressed in place.
And fifthly, laying the spiral twisted box flat, cutting the spiral twisted box flat at multiple points in the height direction to obtain the cross section of the spiral twisted box flat, determining the position and height size of each support of the assembly fixture according to the position and height of each cross section, welding a positioning device on each support, and sequentially connecting the upper end face of each positioning device by a first bevel edge attached to the flange plate, a concave edge attached to the side edge of the thickness of the flange plate, a vertical edge and a second bevel edge attached to the web plate.
Drawings
Fig. 1 is a schematic front view of a spirally twisted box-type structural member according to an embodiment of the present invention;
FIG. 2 is a schematic top view of a helically twisted box-type structural member made in accordance with an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a hot press mold according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a hot-pressing flange plate of a hot-pressing mold according to an embodiment of the present invention;
figure 5 is a schematic front view of the structure of the embodiment of the invention when the required cross-section end surface of the assembly clamping fixture is obtained,
figure 6 is a schematic diagram of a top view of an embodiment of the invention in obtaining the cross-sectional end faces required for assembly of the mould,
FIG. 7 is a schematic structural diagram of a support of an assembly fixture according to an embodiment of the present invention;
FIG. 8 is a schematic view of a positioning device on a support of an assembly fixture according to an embodiment of the present invention;
FIG. 9 is an enlarged partial view of a spiral twisted box-shaped structural member engaged with an assembly fixture according to an embodiment of the present invention;
FIG. 10 is a schematic view of the engagement of the integral helically twisted box-type structural member with the integral assembly fixture according to an embodiment of the present invention;
in the figure: a flange plate 1; a web 2; an upper die 3; a lower die 4; a positioning device 5; a trapezoidal column 6; a bracket 7; a first beveled edge 8; a concave edge 9; a vertical edge 10; a second beveled edge 11; the plate 12 is positioned.
The specific implementation mode is as follows:
the invention will be further illustrated by the following examples, which are intended only for a better understanding of the present invention and therefore do not limit the scope of the invention.
Referring to fig. 1, a manufacturing method of a spiral twisted box type is carried out according to the following steps:
firstly, establishing all spiral twisted box type component models of the full bridge by means of three-dimensional drawing software such as CAD (computer-aided design) and Tekla Structures, classifying and numbering all the spiral twisted box type component models of the full bridge, and respectively unfolding each type of twisted box type flange plate 1 and web plate 2.
And step two, sectionally blanking the expanded flange plates 1 and the expanded web plates 2 according to the capacity of processing equipment, equally dividing the lengths of the sections to ensure the universality of the flange plates and the web plates, numbering each section, and blanking the inner partition plates of each type of spiral twisted box type.
And step three, designing the overall dimension of the hot-pressing die of the flange plate 1 according to the length of each type of spiral distortion box-shaped flange plate 1 segment, wherein the hot-pressing die comprises an upper die 3 and a lower die 4, the upper die 3 and the lower die 4 determine the section curvature according to the distortion degree of the box body, and the upper die 3 and the lower die 4 are provided with positioning devices 5 for hot-pressing the flange plate 1.
And step four, placing the segmented flange plate 1 into a heating furnace, heating to a specified temperature, then carrying out hot-press forming through a hot-pressing die by using a press machine, slowly pressing an upper die down during hot pressing, keeping for at least ten minutes after pressing in place, and rolling the web plate 2 through a plate rolling machine.
Designing and manufacturing each type of spiral twisted box type assembly mould, wherein the mould is composed of a group of supports 7 which are different in height, are provided with positioning plates 12 matched with the spiral twisted box type flange plates 1 and the web plates 2 and are arranged at intervals, the spiral twisted box type is laid flat, a reference horizontal plane is taken below the whole spiral twisted box type component, six trapezoidal columns 6 are built on the horizontal plane according to a certain distance, the twisted box type component is cut by the trapezoidal columns 6, the cut box type is twisted after cutting to form a cut section, the distance between the cut section and the reference horizontal plane is different, so that a control reference of the whole spiral twisted box type component assembly mould with different heights is formed, the assembly mould is designed according to the control reference line, the position and the height of each support 7 of the assembly mould are determined according to the position and the height of each cut section, the positioning plates 12 are welded on each support 7, the upper end face of the positioning plate 12 is formed by sequentially connecting a first bevel edge 8 attached to the flange plate 1, a concave edge 9 attached to the thick side edge of the flange plate 1, a vertical edge 10 and a second bevel edge 11 attached to the web plate 2.
Step six, sequentially laying the flange plates 1 which are subjected to hot press molding and have certain warpage on a support 7 of an assembly mould according to the serial numbers for assembly, checking the fit clearance between the flange plates 1 and the support 7 of the assembly mould, welding each section of the flange plate 1 after meeting the requirements to form a whole flange plate 1, and repairing welding deformation on the assembly mould;
and seventhly, marking positioning lines of the web plates 2 at two sides and the inner partition plate on the flange plate 1.
Step eight, assembling the web plates 2 on the two sides and the inner partition plates according to the positioning lines, checking fit gaps between the flange plates 1 and the web plates 2 and an assembly jig, welding after the assembly deviation meets the requirement, repairing welding deformation on the assembly jig after welding, then assembling another flange plate 1, and welding and repairing welding deformation.
And step nine, carrying out nondestructive inspection on the main welding line of the whole spiral twisted box-shaped member.
Step ten, derusting and coating the whole spiral twisted box-shaped member.
The invention can improve the production efficiency, ensure the production quality, meet the requirement of assembly precision, has small internal stress of the flange plate processed by the hot pressing die, high precision of the overall dimension, small welding deformation, easy control of the overall dimension and small internal stress, and is suitable for processing and manufacturing space-time spiral twisted box type components
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, which is defined in the appended claims.
Claims (1)
1. The manufacturing method of the spiral twisted box type is characterized by comprising the following steps of:
establishing all spiral twisted box type component models of the full bridge through three-dimensional drawing software, classifying and numbering all spiral twisted box type structural components of the full bridge, and respectively unfolding a flange plate and a web plate of each type of twisted spiral box type structural components;
step two, sectionally blanking the expanded flange plates and webs according to the capacity of processing equipment, numbering each section, and blanking each type of spiral twisted box type inner partition plate;
designing the outline dimension of a flange plate hot-pressing mold according to the segmented length of each type of spiral distortion box-shaped flange plate, wherein the hot-pressing mold consists of an upper mold and a lower mold, the section curvature of the upper mold and the lower mold is determined according to the distortion degree of the box body, and positioning devices for the hot-pressing flange plates are arranged on the upper mold and the lower mold;
step four, putting the segmented flange plates into a heating furnace, heating to a specified temperature, then performing hot-press forming through a hot-press die by using a press machine, and rolling the webs through a plate rolling machine;
designing and manufacturing each type of spiral twisted box type assembly clamping fixture, wherein the clamping fixture is composed of a group of supports which are different in height, provided with positioning plates matched with spiral twisted box type flange plates and web plates and arranged at intervals, the spiral twisted box type is laid flat, a reference horizontal plane is taken below an entire spiral twisted box type component, six trapezoidal columns are built on the horizontal plane according to a certain distance, the twisted box type component is cut by the trapezoidal columns, a cut section is formed by the cut twisted box type component, the distance between the cut section and the reference horizontal plane is different, so that a control reference of the overall spiral twisted box type component assembly clamping fixture with different heights is formed, the assembly clamping fixture is designed according to the control base line, the position and the height of each support of the assembly clamping fixture are determined according to the position and the height of each cut section, the positioning plates are welded on each support, and the upper end faces of the positioning plates are formed by first bevel edges jointed with the flange plates, The concave edge, the vertical edge and the second bevel edge are sequentially connected, wherein the concave edge and the vertical edge are attached to the thick side edge of the flange plate;
sequentially laying the flange plates which are subjected to hot press molding and have certain warpage on a support of an assembly mould according to the serial numbers for assembly, checking a fit gap between the flange plates and the support of the assembly mould, welding each section of flange plate after meeting the requirements to form a whole flange plate, and repairing welding deformation on the assembly mould;
step seven, marking positioning lines of the webs on the two sides and the inner partition plate on the flange plate;
step eight, assembling the webs on the two sides and the inner partition plates according to positioning lines, checking fit gaps of the flange plates, the webs and an assembling mould, welding after the assembling deviation meets the requirement, repairing welding deformation on the assembling mould after welding, assembling another flange plate, welding and repairing welding deformation;
step nine, carrying out nondestructive inspection on the main welding line of the whole spiral twisted box-shaped component;
step ten, derusting and coating the whole spiral twisted box-shaped component;
step two, sectionally blanking the unfolded flange plates and the web plates, and equally dividing the lengths of the sections;
and in the fourth step, the upper die is slowly pressed down during hot pressing, and the pressing is kept for at least ten minutes after the upper die is pressed in place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810688538.4A CN108723630B (en) | 2018-06-28 | 2018-06-28 | Manufacturing method of spiral twisted box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810688538.4A CN108723630B (en) | 2018-06-28 | 2018-06-28 | Manufacturing method of spiral twisted box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108723630A CN108723630A (en) | 2018-11-02 |
| CN108723630B true CN108723630B (en) | 2021-03-26 |
Family
ID=63930963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810688538.4A Active CN108723630B (en) | 2018-06-28 | 2018-06-28 | Manufacturing method of spiral twisted box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108723630B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110524190B (en) * | 2019-07-15 | 2021-11-30 | 广州文冲船厂有限责任公司 | Manufacturing method of bent square and rectangular tube |
| CN110449834B (en) * | 2019-07-29 | 2021-10-01 | 中国一冶集团有限公司 | Manufacturing method of bent box-type column |
| CN111822546A (en) * | 2020-07-16 | 2020-10-27 | 中国二十二冶集团有限公司 | Method for producing arc-shaped component |
| CN112276391B (en) * | 2020-10-19 | 2022-03-01 | 中国建筑第八工程局有限公司 | Installation method of spiral steel stairs in limited space |
| CN112548503B (en) * | 2020-12-06 | 2024-01-05 | 中国二冶集团有限公司 | Manufacturing and mounting method for variable-section thin-wall twisted box-type structure |
| CN113059291B (en) * | 2021-03-02 | 2022-10-21 | 上海建工（江苏）钢结构有限公司 | Manufacturing method of Y-shaped conversion column structure |
| CN113369733B (en) * | 2021-05-27 | 2022-09-09 | 武汉一冶钢结构有限责任公司 | Tailor welding method for small austenitic stainless steel elliptical ring at corner section of low-temperature wind tunnel |
| CN115319466B (en) * | 2022-09-16 | 2023-09-15 | 阜阳市节能化工工程有限公司 | External accessory processing system of energy-saving waste combustion furnace |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5188680A (en) * | 1990-11-15 | 1993-02-23 | Esco Corporation | Method of making tooth point |
| CN101259579A (en) * | 2008-04-14 | 2008-09-10 | 北京城建集团有限责任公司 | Processing and preparing method for box type space bending component |
| CN201147797Y (en) * | 2008-01-04 | 2008-11-12 | 中冶成工建设有限公司机械电气安装工程分公司 | Hot pressing apparatus for curved face sheet |
| CN101642841A (en) * | 2009-08-25 | 2010-02-10 | 江苏沪宁钢机股份有限公司 | Manufacturing method of double-twist box-shaped bent member |
| CN102205480A (en) * | 2010-12-16 | 2011-10-05 | 北京首钢建设集团有限公司 | Method for manufacturing spatial curved surface spiral box type component |
| CN103659182A (en) * | 2013-12-03 | 2014-03-26 | 中建钢构江苏有限公司 | Production method of 360-degree spiral stair with cambered box beams |
| CN105665541A (en) * | 2016-01-22 | 2016-06-15 | 上海应用技术学院 | Plate material hot stamping forming and cooling die |
| CN106493526A (en) * | 2016-12-27 | 2017-03-15 | 湖北鑫索建设有限公司 | A kind of heavy hyperboloid arc steel box-girder manufacture craft |
-
2018
- 2018-06-28 CN CN201810688538.4A patent/CN108723630B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5188680A (en) * | 1990-11-15 | 1993-02-23 | Esco Corporation | Method of making tooth point |
| CN201147797Y (en) * | 2008-01-04 | 2008-11-12 | 中冶成工建设有限公司机械电气安装工程分公司 | Hot pressing apparatus for curved face sheet |
| CN101259579A (en) * | 2008-04-14 | 2008-09-10 | 北京城建集团有限责任公司 | Processing and preparing method for box type space bending component |
| CN101642841A (en) * | 2009-08-25 | 2010-02-10 | 江苏沪宁钢机股份有限公司 | Manufacturing method of double-twist box-shaped bent member |
| CN102205480A (en) * | 2010-12-16 | 2011-10-05 | 北京首钢建设集团有限公司 | Method for manufacturing spatial curved surface spiral box type component |
| CN103659182A (en) * | 2013-12-03 | 2014-03-26 | 中建钢构江苏有限公司 | Production method of 360-degree spiral stair with cambered box beams |
| CN105665541A (en) * | 2016-01-22 | 2016-06-15 | 上海应用技术学院 | Plate material hot stamping forming and cooling die |
| CN106493526A (en) * | 2016-12-27 | 2017-03-15 | 湖北鑫索建设有限公司 | A kind of heavy hyperboloid arc steel box-girder manufacture craft |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108723630A (en) | 2018-11-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108723630B (en) | Manufacturing method of spiral twisted box | |
| CN110385861B (en) | Method for forming composite material I-beam | |
| CN103659182A (en) | Production method of 360-degree spiral stair with cambered box beams | |
| CN101642841A (en) | Manufacturing method of double-twist box-shaped bent member | |
| CN102011455A (en) | Complex annular shed bending and twisting component and manufacturing method thereof | |
| CN111112467B (en) | Non-drift-diameter rib pressing plate forming die and rib pressing curved plate machining method | |
| CN113718631A (en) | Steel bridge hyperbolic paraboloid thin plate dense rib plate unit and manufacturing method thereof | |
| CN110524190A (en) | A kind of production method being bent square tube | |
| CN104401013A (en) | Framework type tooling for molding composite material product autoclave | |
| CN107081575B (en) | Complex Chinese character 'ri' shaped member and manufacturing method thereof | |
| CN112339930B (en) | Three-dimensional modeling and precision control method for ship stem steel casting | |
| CN105364434B (en) | Forging die manufacture method | |
| Na et al. | Additive manufacturing (3D Printing)-applied construction: Smart node system for an irregular building façade | |
| CN114406624A (en) | Thick steel plate steel structure column square-to-round joint forming process | |
| JP2011245534A (en) | Press die and method for manufacturing the same | |
| CN110593478B (en) | Design and construction method of assembled UHPC thin shell | |
| CN102837708B (en) | Manufacturing method of side wall of vehicle body of metro vehicle | |
| CN114799753B (en) | Manufacturing method of space special-shaped multi-curved-surface steel structure | |
| CN115709788A (en) | Manufacturing and mounting method of full-rotation propeller base | |
| CN210705255U (en) | Arc-shaped prefabricated stand plate die | |
| CN204735897U (en) | A frame set is to anchor clamps that is used for high pressure notes steam turbine group to prepare | |
| CN110202668B (en) | Arc prefabricated stand plate mold and manufacturing method thereof | |
| CN111531038A (en) | Cold machining forming die for irregular twisted surface and machining method thereof | |
| CN207357938U (en) | The molding die of sheet metal component with boss | |
| CN115255814B (en) | Manufacturing method of steel shell space inextensible curved surface decorative plate unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |