CN117634003A - Tree-shaped conversion structure manufacturing method - Google Patents
Tree-shaped conversion structure manufacturing method Download PDFInfo
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- CN117634003A CN117634003A CN202410097757.0A CN202410097757A CN117634003A CN 117634003 A CN117634003 A CN 117634003A CN 202410097757 A CN202410097757 A CN 202410097757A CN 117634003 A CN117634003 A CN 117634003A
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 238000003466 welding Methods 0.000 claims abstract description 50
- 238000000034 method Methods 0.000 claims abstract description 21
- 238000010586 diagram Methods 0.000 claims abstract description 20
- 238000005457 optimization Methods 0.000 claims abstract description 4
- 238000005520 cutting process Methods 0.000 claims description 29
- 238000005192 partition Methods 0.000 claims description 18
- 239000007787 solid Substances 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 238000003892 spreading Methods 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 3
- 238000005096 rolling process Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract 1
- 238000003754 machining Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
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- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
- G06T17/005—Tree description, e.g. octree, quadtree
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
- G06T17/10—Constructive solid geometry [CSG] using solid primitives, e.g. cylinders, cubes
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2210/00—Indexing scheme for image generation or computer graphics
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Abstract
The invention relates to the technical field of manufacturing of complex conversion structures, and discloses a method for manufacturing a tree-shaped conversion structure, wherein the method is used for obtaining a plane expansion diagram of a conical branch section through Rhino software and a CAD entity model; in order to reduce secondary processing of the port, a pre-groove is added before rolling. And (3) performing secondary optimization on the Tekla model, adding a weld groove form in consideration of weld requirements and actual manufacturing, and determining a welding direction so as to ensure that the model is closer to actual processing, reduce material loss and optimize a processing technology. And combining the spatial characteristics of the tree-shaped conversion column, and establishing a coordinate control system by using cad to meet the assembly precision and the spatial accuracy of each part. IN addition, the control work of the total station and the IN-ANALY precision analysis software covers each step of assembly and welding procedures, and timely corrects errors, so that the assembly and welding precision of the components is ensured. The invention effectively improves the working efficiency and has good economic and social benefits.
Description
Technical Field
The invention relates to the technical field of manufacturing of complex conversion structures, in particular to a manufacturing method of a tree-shaped conversion structure.
Background
In recent years, the building industry in China is rapidly developed, and the requirements on the functions of high-rise buildings are continuously improved, from single use to multifunctional and comprehensive use. In particular to a comprehensive high-rise building, which has high space utilization rate and cost saving. The traditional large column net structure can not meet the requirements, so that the space is difficult to effectively utilize, and the cost is high. The generation of the conversion layer structure provides a good solution to these problems. The conversion layer structure not only can improve the space utilization efficiency and enrich the use functions of the building, but also can reduce the building cost, and obvious results are obtained in economic benefits. In short, the conversion layer structure is widely applied to high-rise buildings, and becomes one of the preferred schemes for solving the problem that the conventional large column net structure cannot meet the requirements.
The tree-shaped conversion column is used as a novel conversion structure form, a larger supporting space can be formed through a smaller main rod piece, a larger space span is provided, and the requirements of customers on flexibility and innovation of building space are better met. Compared with the traditional main body structure, the tree-shaped conversion column is more complex, is not only composed of various cross-section structures, but also different in space angle of each branch, and has higher requirements on space precision. In addition, the space included angle formed by the main rod and the branches increases the welding difficulty, and the appearance machining precision becomes control key point.
Therefore, in order to solve the above problems, a new technical solution is provided to meet the needs.
In document CN202220772343, a connection node for a narrow tree column section is disclosed, the tree column comprises a plurality of sections of struts connected in turn along a longitudinal direction, each section of strut is formed by encircling a plurality of main pipes, the sections between two adjacent sections of struts are connected longitudinally through a section connection node, the section connection node comprises at least one connection pipe, the connection pipe is used for carrying out transitional connection on two main pipes which are opposite up and down, direct welding is carried out between the other main pipes which are opposite up and down, the connection pipe comprises a plugboard and two arc boards, the two arc boards are butted to form a connection pipe main body with a tubular structure, the upper end and the lower end of each arc board are respectively welded with the two main pipes which are opposite up and down, the upper end and the lower end of each arc board are respectively welded with the plugboard, and the two ends of each arc board which are opposite to the plugboard are respectively welded with the plugboard. This structure is likely to cause a deviation in accuracy when welding is performed, resulting in a lower accuracy of the entire tree structure.
Disclosure of Invention
In order to solve the problems, the invention discloses a manufacturing method of a tree-shaped conversion structure, which improves welding precision, prevents deviation and enables the whole welding precision to be higher.
The technical scheme of the invention is as follows: a method for manufacturing a tree-shaped conversion structure comprises the following steps:
step 1: performing tekla secondary optimization on the original model, adding actual groove data to obtain a groove lofting diagram, deriving a solid cad model of a conical branch section by tekla software, processing the solid model by cad software, setting a pre-groove on the basis of the conical plane spreading diagram, determining a intersecting opening cutting line, establishing a three-dimensional curved surface by the conical branch section through the cad solid model, converting the three-dimensional curved surface into a two-dimensional curved surface by using Rhino software, and further obtaining the conical plane spreading diagram;
step 2: firstly, a numerical control cutting machine is used for blanking a body; when cutting the groove, the two sides are cut simultaneously according to the requirements of the drawing, so as to reduce deformation and correct straight;
step 3: pressing the conical branch section a, the conical branch section b, the conical branch section c and the conical branch section d according to the drawing requirements;
step 4: repairing and cutting the port along the intersecting line according to the conical plane expansion diagram and the bevel lofting diagram;
step 5: setting up a qualified jig frame and welding a cross node plate;
step 6: assembling and welding the conical support section and the node plate through an auxiliary process plate;
step 7: and assembling and welding the partition plate and the lower section box-shaped body step by step.
Preferably, in the step 1, the actual welding condition of the small opening ends of the conical branch section a, the conical branch section b, the conical branch section c and the conical branch section d is considered, the pre-bevel angle is preset, the ports are flush after the steel plates for preparing the conical branch sections are pressed and formed, the discontinuous cutting lines of the intersecting openings are reserved on the steel plates, 50-100 mm of the two ends are left to be cut off, 100-150 mm of the left and right of the inflection point are left to be cut off, the middle part is cut off every 200-250 mm, and 50-100 mm of the discontinuous cutting lines are left to be cut off.
By adopting the technical scheme, corresponding dimensions are reserved, so that subsequent procedures can be conveniently performed for cutting, assembling and welding.
Preferably, in step 4, the actual sample graph of the groove of the intersecting opening is obtained through lofting, and the intersecting opening of the conical branch section a, the conical branch section b, the conical branch section c and the conical branch section d is cut by combining the reserved cutting lines, so that the conical branch section intersecting opening is accurately cut at fixed points through the actual sample graph of the groove, and the cutting workload is reduced.
Preferably, in step 5 and step 6, the cross node plate is locally bent, and 4 conical branch sections a, b, c and d with different space angles exist, in order to ensure the assembly precision of each conical branch section, the structure is built by a CAD special module, so as to obtain a multi-point three-dimensional coordinate, a qualified and rigid jig is built on the basis, the through hole end of the conical branch pipe is fixedly connected with the cross node long plate a, the cross node short plate b and the cross node short plate c in a space oblique angle through a welding mode, and the process plate is assisted to support, so that the assembly rigidity of the structure is ensured.
By adopting the technical scheme, the conical branch section intersecting opening is cut at a precise fixed point through the actual bevel sample diagram, so that the cutting workload is reduced, and meanwhile, the actual assembly precision of each part is ensured by the multi-point three-dimensional coordinate control.
Preferably, the cross node long plate a is bent according to the graph IN advance, because the angle formed by the conical support section a, the conical support section b, the conical support section c and the conical support section d, the cross node long plate a, the cross node short plate b and the cross node short plate c is formed, a local actual groove faces the inner part of the conical support section a, the conical support section b, the conical support section c and the conical support section d, and the inner cavity space of the conical support section a, the conical support section b, the conical support section c and the conical support section d is relatively large, the welding mode of outer fillet weld bottoming, inner back gouging and rear filling cover surface is adopted, meanwhile, the spatial position precision after welding is controlled IN a step-by-step mode by utilizing total station and IN-ANALY precision analysis software, and deviation processing is corrected IN time.
Preferably, IN the step 7, the partition plate is connected with the conical branch section a, the conical branch section b, the conical branch section c, the conical branch section d, the cross node long plate a, the cross node short plate b and the cross node short plate c IN a welding mode, wherein the partial groove formed by the partition plate, the conical branch section a, the conical branch section b, the conical branch section c and the conical branch section d faces to the inner side of the cone, so that the partial groove adopts the welding mode of outer side fillet weld bottoming, inner side back chipping and post filling cover surface, the lower section box body is assembled and welded, the welding operation of the longitudinal main weld of the box body is finished finally, meanwhile, the spatial position precision after the pre-welding is controlled IN a step mode by utilizing the total station and IN-ANALY precision analysis software, and the deviation treatment is corrected IN time.
Through adopting above-mentioned technical scheme, can improve the precision of spatial position to the problem that appears, carry out timely correction deviation.
Preferably, in the step 7, the cross node plates are structurally optimized, namely, the protruding conical branch section a, the conical branch section b, the conical branch section c, the conical branch section d, the box body and the partition plate, wherein the protruding distance is at least one plate thickness.
By adopting the technical scheme, the conical support section, the box body and the partition plate extend out of the plate thickness distance, the T-shaped joint is optimized to be a cross joint, and the risk of lamellar tearing resistance can be prevented.
The invention has the advantages that: 1. according to the invention, the acquisition of the plane expansion diagram of the conical branch section is realized through the Rhino software and the CAD solid model; the pre-bevel is added before the rolling, so that secondary processing of the port can be reduced, and the processing efficiency is improved.
2. According to the invention, the angle and the direction of an actual groove are fully considered, accurate material binding data is provided, excessive material loss is avoided, the preliminary deduction of assembly and processing is facilitated, the manufacturing process is optimized, the welding difficulty and the work are reduced, the spatial characteristics of a tree-shaped conversion column are combined, and a coordinate control system is established by cad so as to meet the assembly precision and the spatial accuracy of each part.
3. The invention covers each step of assembly and welding procedures by the control work of the total station and the IN-ANALY precision analysis software, rectifies IN time, ensures the assembly and welding precision of the components, effectively improves the working efficiency and has good economic and social benefits.
Drawings
FIG. 1 is a schematic diagram of a tree-shaped switching column according to the present invention;
FIG. 2 is a schematic front view of a tree switch column of the present invention;
FIG. 3 is a schematic top view of a tree switch column of the present invention;
fig. 4 is a schematic front view of the tree-shaped conversion column (with the lower section of the box-shaped body 8 hidden) according to the present invention;
fig. 5 is a flow chart of the present application.
Wherein: 1. conical branch section a,2, conical branch section b,3, conical branch section c,4, conical branch section d,5, cross node long plate a,6, cross node short plate b,7, cross node short plate c,8, box body, 9, partition plate, 10, partition plate, 11, auxiliary process plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
As shown in fig. 1-5, a method for manufacturing a tree-shaped conversion structure includes the following steps:
step 1: performing tekla secondary optimization on the original model, adding actual groove data to obtain a groove lofting diagram, deriving a solid cad model of a conical branch section by tekla software, processing the solid model by cad software, setting a pre-groove on the basis of the conical plane spreading diagram, determining a intersecting opening cutting line, establishing a three-dimensional curved surface by the conical branch section through the cad solid model, converting the three-dimensional curved surface into a two-dimensional curved surface by using Rhino software, and further obtaining the conical plane spreading diagram;
step 2: firstly, a numerical control cutting machine is used for blanking a body; when cutting the groove, the two sides are cut simultaneously according to the requirements of the drawing, so as to reduce deformation and correct straight;
step 3: pressing the conical branch section a1, the conical branch section b2, the conical branch section c3 and the conical branch section d4 according to the drawing requirements;
step 4: repairing and cutting the port along the intersecting line according to the conical plane expansion diagram and the bevel lofting diagram;
step 5: setting up a qualified jig frame and welding a cross node plate;
step 6: assembling and welding the conical support section and the node plate through an auxiliary process plate;
step 7: the partition plate 10 and the lower box body 8 are assembled and welded step by step.
In the step 1, the actual welding conditions of the small opening ends of the conical branch section a, the conical branch section b, the conical branch section c and the conical branch section d are considered, the pre-bevel angle is preset, the ports are flush after the steel plates for preparing the conical branch sections are pressed and formed, the discontinuous cutting lines of the intersecting openings are reserved on the steel plates, 50-100 mm of the two ends are left to be cut off, 100-150 mm of the left and right of the inflection point are left to be cut off, the middle part is cut off at intervals of 200-250 mm, and 50-100 mm of the discontinuous cutting lines are left to be cut off. The corresponding size is reserved, so that cutting, assembling and welding can be conveniently carried out in the subsequent process.
And in the step 4, a groove actual sample graph of the intersecting opening is obtained through lofting, and the intersecting opening of the conical branch section a1, the conical branch section b2, the conical branch section c3 and the conical branch section d4 is cut by combining a reserved cutting line, so that the accurate fixed-point cutting is realized, and the cutting workload is reduced.
In the step 5 and the step 6, the cross node plate is partially bent, 4 conical branch sections a1, b2, c3 and d4 with different space angles exist, in order to ensure the assembly precision of each conical branch section, the coordinates of the structure are built through a CAD special module, and then the multi-point three-dimensional coordinates are obtained, a qualified and rigid jig is built on the basis, the through hole end of the conical branch pipe is fixedly connected with the cross node long plate a5, the cross node short plate b6 and the cross node short plate c7 in a space oblique angle through a welding mode, the process plate 11 is assisted to support the structure assembly rigidity, the cross node long plate a5, the cross node short plate b6 and the cross node short plate c7 are welded on the conical branch pipe, the strength of the conical branch pipe is enhanced, the rigidity of the whole structure can be ensured, the intersecting hole of the conical branch section is cut through a bevel actual sample diagram, the accurate fixed point is cut, the cutting workload is reduced, meanwhile, the multi-point three-dimensional coordinate control ensures the actual assembly precision of each part, and the actual assembly precision of each part is ensured.
The cross node long plate a5 is bent according to the graph IN advance, because the conical branch section a1, the conical branch section b2, the conical branch section c3 and the conical branch section d4 form angles with the cross node long plate a5, the cross node short plate b6 and the cross node short plate c7 to form angles, a local actual groove faces the conical branch section a1, the conical branch section b2, the conical branch section c3 and the conical branch section d4, and the inner cavity space of the conical branch section a1, the conical branch section b2, the conical branch section c3 and the conical branch section d4 is relatively large, the welding mode of outer side fillet weld bottoming, inner side back chipping and back filling cover surface is adopted, meanwhile, the spatial position precision after welding is controlled IN a step-by-step mode by utilizing the total station and IN-ANALY precision analysis software, and deviation treatment is corrected IN time.
IN the step 7, the partition plate 9 is connected with the conical branch section a1, the cross node long plate a5, the cross node short plate b6 and the cross node short plate c7 IN a welding mode, wherein the grooves formed by the partition plate 9 and the conical branch section a1 are partially towards the conical branch section a1, so that the grooves adopt the welding mode of outer side fillet weld bottoming, inner side back chipping and back filling cover face, the lower section box body 8 is assembled and welded, the welding withdrawal partition plate 10 is disassembled, finally, the welding operation of the longitudinal main welding line of the box body 8 is finished, meanwhile, the spatial position accuracy of the welding before and after the welding is jointly and stepwise controlled by utilizing the total station and IN-ANALY accuracy analysis software, and the deviation treatment is corrected IN time. The accuracy of the space position can be improved, and the deviation can be corrected timely for the problems.
In the step 7, the cross node plates are all structurally optimized, namely, the protruding conical branch section a1, the conical branch section b2, the conical branch section c3, the conical branch section d4, the box-shaped body 8 and the partition plate 9, wherein the protruding distance is at least one plate thickness. The conical branch, the box body 8 and the partition 9 are optimized into a cross joint by extending a plate thickness distance, so that the risk of lamellar tearing resistance can be prevented.
It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are by way of example only and not limitation, and that the objects of the invention have been fully and effectively achieved. The functional and structural principles of the present invention have been shown and described in the examples and embodiments of the invention may be modified or practiced without departing from the principles described.
Claims (7)
1. The tree-shaped conversion structure manufacturing method is characterized by comprising the following steps of:
step 1: performing tekla secondary optimization on the original model, adding actual groove data to obtain a groove lofting diagram, deriving a solid cad model of a conical branch section by tekla software, processing the solid model by cad software, setting a pre-groove on the basis of the conical plane spreading diagram, determining a intersecting opening cutting line, establishing a three-dimensional curved surface by the conical branch section through the cad solid model, converting the three-dimensional curved surface into a two-dimensional curved surface by using Rhino software, and further obtaining the conical plane spreading diagram;
step 2: firstly, a numerical control cutting machine is used for blanking a body; when cutting the groove, the two sides are cut simultaneously according to the requirements of the drawing, so as to reduce deformation and correct straight;
step 3: pressing the conical branch section a, the conical branch section b, the conical branch section c and the conical branch section d according to the drawing requirements;
step 4: repairing and cutting the port along the intersecting line according to the conical plane expansion diagram and the bevel lofting diagram;
step 5: setting up a qualified jig frame and welding a cross node plate;
step 6: assembling and welding the conical support section and the node plate through an auxiliary process plate;
step 7: and assembling and welding the partition plate and the lower section box-shaped body step by step.
2. The method for manufacturing the tree-shaped conversion structure according to claim 1, wherein: in the step 1, the actual welding conditions of the small opening ends of the conical branch section a, the conical branch section b, the conical branch section c and the conical branch section d are considered, the pre-bevel angle is preset, the ports are flush after the steel plates for preparing the conical branch sections are pressed and formed, the discontinuous cutting lines of the intersecting openings are reserved on the steel plates, 50-100 mm of the two ends are left to be cut off, 100-150 mm of the left and right of the inflection point are left to be cut off, the middle part is cut off at intervals of 200-250 mm, and 50-100 mm of the discontinuous cutting lines are left to be cut off.
3. The method for manufacturing the tree-shaped conversion structure according to claim 1, wherein: and in the step 4, obtaining a bevel actual sample image of the intersecting opening through lofting, and cutting the intersecting opening of the conical branch section a, the conical branch section b, the conical branch section c and the conical branch section d by combining a reserved cutting line.
4. The method for manufacturing the tree-shaped conversion structure according to claim 1, wherein: in the step 5 and the step 6, the cross node plate is locally bent, and 4 conical branch sections a, b, c and d with different space angles exist, in order to ensure the assembly precision of each conical branch section, the structure is built by a CAD special module, so as to obtain a multi-point three-dimensional coordinate, a qualified and rigid jig is built on the basis, the through hole end of the conical branch pipe is fixedly connected with the cross node long plate a, the cross node short plate b and the cross node short plate c in a space oblique angle through a welding mode, and the process plate 11 is assisted to support, so that the assembly rigidity of the structure is ensured.
5. The method for manufacturing the tree-shaped conversion structure according to claim 4, wherein: the cross node long plate a is bent according to a graph IN advance, and because the conical support section a, the conical support section b, the conical support section c and the conical support section d form angles with the cross node long plate a, the cross node short plate b and the cross node short plate c, local actual grooves face the inner parts of the conical support section a, the conical support section b, the conical support section c and the conical support section d, and the inner cavity spaces of the conical support section a, the conical support section b, the conical support section c and the conical support section d are relatively large, the welding mode of outer fillet weld bottoming, inner back gouging and post filling cover surface is adopted, meanwhile, the spatial position precision after welding is controlled IN a step-by-step mode by utilizing total station and IN-ANALY precision analysis software, and deviation processing is corrected IN time.
6. The method for manufacturing the tree-shaped conversion structure according to claim 1, wherein: IN the step 7, the partition board is connected with the conical branch section a, the conical branch section b, the conical branch section c, the conical branch section d, the cross node long plate a, the cross node short plate b and the cross node short plate c IN a welding mode, wherein the grooves formed by the partition board 9, the conical branch section a, the conical branch section b, the conical branch section c and the conical branch section d are partially towards the inner side of the cone, so that the partial grooves adopt the welding mode of outer fillet weld bottoming, inner back chipping and post filling cover surface, the lower section box body is assembled and welded, the welding operation of the longitudinal main welding line of the box body is finished by withdrawing the welding partition board, and meanwhile, the spatial position precision after the welding is controlled IN a step mode by combining a total station and IN-ANALY precision analysis software, and deviation treatment is corrected IN time.
7. The method for manufacturing the tree-shaped conversion structure according to claim 1, wherein: in the step 7, the cross node plates are structurally optimized, namely, the protruding conical branch section a, the conical branch section b, the conical branch section c, the conical branch section d, the box body and the partition plate, wherein the protruding distance is at least one plate thickness.
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| CN217000211U (en) * | 2022-03-31 | 2022-07-19 | 安徽富煌钢构股份有限公司 | Connection node for segmenting narrow tree-shaped column |
| CN116275909A (en) * | 2023-03-24 | 2023-06-23 | 山西潇河建筑产业有限公司 | Manufacturing method of heavy round square variable diameter node |
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- 2024-01-24 CN CN202410097757.0A patent/CN117634003A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101664845A (en) * | 2009-10-12 | 2010-03-10 | 上海交通大学 | Numerical control cutting system of intersecting steel structure of plurality of geometries on offshore oil platform |
| WO2011133050A1 (en) * | 2010-04-20 | 2011-10-27 | Promotech Sp. Z.O.O. | Method and device for cutting openings in flat, concave or convex surfaces |
| CN103949783A (en) * | 2014-03-28 | 2014-07-30 | 南通太平洋海洋工程有限公司 | Welding method of maritime crane barrel neck opening |
| WO2019087032A1 (en) * | 2017-10-30 | 2019-05-09 | Universita' Degli Studi Di Firenze | Method for the reconstruction of cad models through parametric adaptation |
| CN114406624A (en) * | 2022-02-28 | 2022-04-29 | 山西四建集团有限公司 | Thick steel plate steel structure column square-to-round joint forming process |
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