CN114406627B - Manufacturing method of bent-twisted parallelogram box-shaped component - Google Patents
Manufacturing method of bent-twisted parallelogram box-shaped component Download PDFInfo
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- CN114406627B CN114406627B CN202210231393.1A CN202210231393A CN114406627B CN 114406627 B CN114406627 B CN 114406627B CN 202210231393 A CN202210231393 A CN 202210231393A CN 114406627 B CN114406627 B CN 114406627B
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- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
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- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
Abstract
The invention belongs to the field of a manufacturing process of a building steel structure, and particularly relates to a manufacturing method of a bent-twisted parallelogram box-type component. Firstly, integrally unfolding an upper wing plate, a lower wing plate, a left web plate and a right web plate in a member in a Tekla model, determining a bending line and a bending angle for bending the torsion wing web plate, and creating a three-dimensional coordinate positioning point of the member for placing a jig frame. The invention provides a manufacturing method of a bending parallelogram box-type component, which is characterized in that a Tekla model is utilized to unfold a wing web part, and a numerical control cutting machine is adopted for blanking, so that the part has high dimensional precision and good blanking quality; the groove machining is carried out before the wing web is bent, and compared with the machining after the wing web is bent, the machining quality is good, the efficiency is high, and the assembling precision is high; the bending lines of the wing web plates are led out in a Tekla model in an equal ratio, the density of the bending lines is changed along with the change of the length and the bending degree of the component, the bending curved surface is excessively smoother, and the precision is higher.
Description
Technical Field
The invention belongs to the field of a manufacturing process of a building steel structure, and particularly relates to a manufacturing method of a bent-twisted parallelogram box-type component.
Background
Along with the development of the steel structure, the modeling difficulty of the building industry is more and more large, the advantages of the steel structure are more and more obvious, and especially, the bending and twisting modeling components are incomparable to concrete; in the building construction process, some urban landmark buildings or cultural artistic buildings are designed with some crankle steel structure box-shaped beams in a large space due to the requirements of building structure functions and building aesthetics, the crankle steel structure box-shaped beams can save the building space and provide space for subsequent equipment installation while increasing the building aesthetics, but in the actual construction process, the crankle plate has high processing difficulty and high technical requirements, and the crankle forming precision of the plate is directly influenced by the processing precision and the installation precision of a twisted member; the construction of the crankling component is different from the construction of common conventional components, the assembly and the assembly welding of a crankling position are required to be carried out on a spatial position, the construction and manufacturing difficulty is high, the assembly precision is difficult to ensure by common conventional methods, the welding deformation is caused by large-scale welding, and the accurate positioning construction is difficult to realize in the manufacturing of the hyperbolic crankling parallelogram box beam;
in the present patent, through the retrieval, to the similar patent of the preparation of the box girder of turn-knob, through understanding the relevant component construction of its main concern rotatory stair of analysis, to adopting the construction method of the box girder structure of turn-knob as the figurative space structure not all involving, can't carry out relevant technique from the current patent and refer to, and the two box girder sectional areas of turn-knob are parallelogram, and the space turn-knob is figurative, and relative rotatory stair box girder structure preparation is more complicated, and the space orientation demand is higher.
Disclosure of Invention
Aiming at the technical problems existing in the processing and manufacturing of the conventional bent-twisted parallelogram box-shaped component, the invention provides a manufacturing method of the bent-twisted parallelogram box-shaped component which is reasonable in design, simple in structure and convenient to process.
In order to achieve the above object, the invention adopts a technical scheme that the invention provides a method for manufacturing a cranked parallelogram box-shaped component, which comprises the following steps:
a. firstly, integrally unfolding an upper wing plate, a lower wing plate, a left web plate and a right web plate in a member in a Tekla model, determining a bending line and a bending angle for bending the web plate of a twisted wing, and creating a three-dimensional coordinate positioning point of the member for placing a jig;
b. according to the expansion diagrams of the upper wing plate, the lower wing plate, the left web plate and the right web plate, which are issued by the model, the upper wing plate, the lower wing plate, the left web plate and the right web plate are integrally blanked by a numerical control cutting machine, and then the clapboards are cut out while blanking;
c. after the cutting is finished, bending and twisting the upper wing plate, the lower wing plate, the left web plate and the right web plate by using a rounding hydraulic machine according to a bending line marked by a drawing;
d. marking out a bending component big sample on the ground plane according to the projection coordinate in the Tekla model, and meanwhile, placing a jig frame according to a three-dimensional coordinate positioning point established by the Tekla model;
e. carrying out size inspection on the bent upper wing plate, the bent lower wing plate, the bent left web plate and the bent right web plate on a jig frame and carrying out local bending treatment;
f. assembling an upper wing plate, a lower wing plate, a left web plate, a right web plate and a partition plate which are qualified through detection on a jig frame, firstly placing the lower wing plate on the jig frame and fixing, then sequentially assembling the partition plates on the lower wing plate, then installing the left web plate and fixing the left web plate with the lower wing plate and the partition plate, then installing the right web plate and welding the partition plates, and finally installing the upper wing plate to obtain the assembled crankle component;
g. carrying out size detection on the assembled crankle component;
h. welding electroslag welding and body welding seam welding are carried out on the crankling component with qualified size detection;
i. and carrying out weld seam flaw detection and size detection on the welded component, carrying out shot blasting and paint spraying after the welded component is qualified, and finally obtaining a finished product of the bent-twisted parallelogram box-type component.
Preferably, the bed-jig includes the bracing piece that the level set up and sets up the landing leg in the bracing piece bottom, bracing piece cavity sets up, be provided with flexible subassembly in the bracing piece, the power end coupling of flexible subassembly has the down tube, the top of bracing piece is provided with the logical groove that is used for the down tube to pass, the one end coupling that flexible subassembly was kept away from to the down tube has lifting unit, lifting unit is vertical to be set up the one end at the down tube, lifting unit's below is provided with the stand.
Preferably, the telescopic assembly and the lifting assembly are both cylinders or oil cylinders.
Preferably, in the step a, the three-dimensional coordinate positioning point is an equant point according to the projection coordinate in the Tekla model.
Preferably, in the step b, when the upper wing plate, the lower wing plate, the left web plate and the right web plate are blanked, the angle of the cutting nozzle is adjusted to enable the cutting surface to be arranged in an inclined plane of 45 degrees.
Preferably, in the step e, the local bending is performed by flame straightening, so that the lower wing plate is closely attached to the jig frame for supporting, and the web plate is closely attached to the partition plate.
Preferably, in the step h, electroslag welding of the partition plate is performed firstly, and after flaw detection is qualified, the welding seams between the left web plate, the right web plate, the upper wing plate and the lower wing plate are symmetrically welded and subjected to sectional skip welding.
Compared with the prior art, the invention has the advantages and positive effects that,
the invention provides a manufacturing method of a bending parallelogram box-type component, which is characterized in that a Tekla model is utilized to unfold a wing web part, and a numerical control cutting machine is adopted for blanking, so that the part has high dimensional precision and good blanking quality; the groove machining is carried out before the wing web is bent, and compared with the machining after the wing web is bent, the machining quality is good, the efficiency is high, and the assembling precision is high; the bending lines of the wing web plates are led out in a Tekla model in an equal ratio, the density of the bending lines is changed along with the change of the length and the bending degree of the component, the bending curved surface is excessively smoother, and the precision is higher. The jig frame positioning coordinates are derived by adopting the three-dimensional coordinates of the model, so that the jig frame is high in manufacturing precision and high in assembly efficiency; the wing web plate support frame in the jig frame is provided with the adjusting device, the support frame can be adjusted according to different bending coordinates of the components, the jig frame does not need to be manufactured by each component, the efficiency is improved, and materials are saved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
FIG. 1 is a schematic structural view of a twisted parallelogram box-shaped member provided in example 1 when being machined;
FIG. 2 is a cross-sectional view of a cranked parallelogram box-shaped member provided in example 1;
FIG. 3 is a schematic structural view of a jig frame provided in example 1;
in the above figures, the upper wing plate 1, the lower wing plate 2, the left web 3, the right web 4, the inner partition plate 5, the process partition plate 6, the jig 7, the support rod 71, the support leg 72, the through groove 73, the diagonal rod 74, the lifting assembly 75 and the upright post 76.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein and, therefore, the present invention is not limited to the specific embodiments disclosed in the following description.
The method comprises the steps of firstly, integrally unfolding an upper wing plate 1, a lower wing plate 2, a left web plate 3 and a right web plate 4 in a member in a Tekla model, determining a bending line and a bending angle for bending the twisted wing web plate, creating a three-dimensional coordinate positioning point of the member for placing a jig frame 7, and automatically generating a steel structure detailed drawing and various reports to achieve the function of facilitating the view through the Tekla model which is created in the Finland. It is very common in the use of steel structures, so in this embodiment, detailed description is not given. The upper wing plate 1, the lower wing plate 2, the left web plate 3 and the right web plate 4 are unfolded, mainly the four pieces have certain bending torsion, and the four pieces need to be cut by utilizing an unfolding diagram. The three-dimensional coordinate locating points are equal division points according to vertical projection coordinates in the Tekla model, besides the fact that the tire frames 7 at two ends are arranged close to the edges of the box-shaped component, the tire frames 7 close to the edges are arranged at the node, closest to the outermost tire frame 7, of the whole box-shaped structure, and are divided equally according to the lengths of the two nodes.
Then, according to the developed images of the upper wing plate 1, the lower wing plate 2, the left web plate 3 and the right web plate 4 issued by the model, the upper wing plate 1, the lower wing plate 2, the left web plate 3 and the right web plate 4 are integrally blanked by a numerical control cutting machine, then the partition plate is cut out while blanking, and when blanking is carried out, the cutting nozzle angle is adjusted when the wing web plates (the upper wing plate 1, the lower wing plate 2, the left web plate 3 and the right web plate 4) are blanked, so that the cutting surfaces of the wing web plates are arranged in 45-degree inclined planes. The purpose that sets up like this can make things convenient for the equipment and the welding in later stage, also cuts out plane corner cut when the unloading. The partition plate is also precisely blanked by a numerical control cutting machine; performing groove processing on the web and the partition plates after the blanking by adopting a semi-automatic flame cutting machine; bending and twisting the wing web plate by adopting a rounding hydraulic press according to the bending line marked by the drawing;
after the cutting is finished, bending and twisting the upper wing plate 1, the lower wing plate 2, the left web plate 3 and the right web plate 4 by adopting a rounding hydraulic press according to a bending line marked by a drawing.
Then, according to the projection coordinate in the Tekla model, draw out the big appearance of the crankle component on the ground level, simultaneously, place the bed-jig 7 according to the three-dimensional coordinate setpoint that the Tekla model established, in order to facilitate the installation and welding, this embodiment provides an adjustable bed-jig 7 specially, specifically speaking, the bed-jig 7 includes the bracing piece 71 that sets up horizontally and the landing leg 72 that sets up in the bracing piece 71 bottom, in this embodiment, the bracing piece 71 chooses the square shaped steel, of course, also can choose to support the hollow setting material of bracing piece 71, then, be provided with the flexible subassembly in the bracing piece 71, in this embodiment, the flexible subassembly is the cylinder, also can choose the hydro-cylinder certainly, the flexible subassembly sets up from one end to the other end of bracing piece 71, be coupled with down tube 74 at the power end of the flexible subassembly, the top of bracing piece 71 is provided with through groove 73 that is used for down tube 74 to pass, through groove 73 is far away from the one end of the flexible subassembly that the bracing piece 71, be coupled with lift subassembly 75 at the one end that the down tube 74 is far away from the flexible subassembly, the lift subassembly 75 sets up vertically in one end of down tube 74, be provided with stand 76. Thus, the angle between the inclined rod 74 and the support rod 71 can be adjusted at will, and the left web 3 can be ensured to be always attached to the inclined rod 74, and the support rod 71 is always attached to the lower wing plate 2.
And then, carrying out dimension inspection on the bent upper wing plate 1, the bent lower wing plate 2, the left web plate 3 and the right web plate 4 on a jig frame 7 and carrying out local bending treatment, wherein the local bending is carried out by adopting flame correction, so that the lower wing plate 2 is supported by the jig frame 7 in a clinging manner, and the web plate is clinged to the partition plate.
And then, assembling the upper wing plate 1, the lower wing plate 2, the left web plate 3, the right web plate 4 and the partition plates which are qualified through detection on a jig frame 7, firstly placing and fixing the lower wing plate 2 on the jig frame 7, then sequentially assembling the partition plates (the inner partition plate 5 and the process partition plate 6) on the lower wing plate 2, then installing the left web plate 3 and fixing the left web plate with the lower wing plate 2 and the partition plates, then installing the right web plate 4 and welding the partition plates, and finally installing the upper wing plate 1 to obtain the assembled crankle component.
The size of the assembled crankling component is detected, the crankling component qualified in size detection is subjected to welding electroslag welding and body weld seam welding, during welding, the electroslag welding of the partition plate is firstly carried out, and after flaw detection is qualified, the weld seams between the left web plate 4, the right web plate 4 and the upper wing plate 2 and the lower wing plate 2 are symmetrically welded and subjected to sectional skip welding.
And finally, carrying out weld seam flaw detection and size detection on the welded component, carrying out shot blasting and paint spraying after the welded component is qualified, and finally obtaining the finished bent-twisted parallelogram box-type component.
According to the method, the rapid construction of the bent-twisted parallelogram box-shaped member can be realized, so that the quality is ensured and the construction efficiency is improved.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.
Claims (3)
1. The manufacturing method of the cranked parallelogram box-shaped component is characterized by comprising the following steps of:
a. firstly, integrally unfolding an upper wing plate, a lower wing plate, a left web plate and a right web plate in a crankle parallelogram box-shaped member in a Tekla model, determining a bending line and a bending angle for bending the upper wing plate, the lower wing plate, the left web plate and the right web plate, and establishing a three-dimensional coordinate positioning point of the crankle parallelogram box-shaped member for placing a jig;
b. according to the expansion drawing of the upper wing plate, the lower wing plate, the left web plate and the right web plate issued by the Tekla model, blanking the upper wing plate, the lower wing plate, the left web plate and the right web plate by a numerical control cutting machine, and cutting the partition plate out while blanking;
c. after the cutting is finished, bending the upper wing plate, the lower wing plate, the left web plate and the right web plate by using a hydraulic rounding machine according to a bending line marked by a drawing;
d. drawing a contour of a bent parallelogram box-shaped component on a ground plane according to a projection coordinate in the Tekla model, and meanwhile, placing a jig frame according to a three-dimensional coordinate positioning point established by the Tekla model;
e. placing the bent upper wing plate, the bent lower wing plate, the bent left web plate and the bent right web plate on a jig frame for size inspection and local bending treatment;
f. assembling an upper wing plate, a lower wing plate, a left web plate, a right web plate and a partition plate which are qualified through detection on a jig frame, firstly placing the lower wing plate on the jig frame and fixing, then sequentially assembling the partition plates on the lower wing plate, then installing the left web plate and fixing the left web plate with the lower wing plate and the partition plate, then installing the right web plate and welding the partition plates, and finally installing the upper wing plate to obtain the assembled cranked parallelogram box-shaped component;
g. carrying out size detection on the assembled bent parallelogram box-type component;
h. carrying out electroslag welding and welding seam welding on the bent parallelogram box-shaped component with qualified dimension detection;
i. carrying out weld seam flaw detection and size detection on the welded bent-twisted parallelogram box-shaped component, carrying out shot blasting and paint spraying after the welded bent-twisted parallelogram box-shaped component is qualified, and finally obtaining a finished bent-twisted parallelogram box-shaped component;
the jig frame comprises a supporting rod and supporting legs, the supporting rod is horizontally arranged, the supporting rod is arranged in a hollow mode, a telescopic assembly is arranged in the supporting rod, a power end of the telescopic assembly is connected with an oblique rod in a shaft mode, the top of the supporting rod is provided with a through groove used for the oblique rod to penetrate through, one end, far away from the telescopic assembly, of the oblique rod is connected with a lifting assembly in a shaft mode, the lifting assembly is vertically arranged at one end of the oblique rod, a stand column is arranged below the lifting assembly, the telescopic assembly and the lifting assembly are both cylinders or oil cylinders, and in the step a, the three-dimensional coordinate locating point is an equant point according to the projection coordinate in the Tekla model.
2. The method for manufacturing a box-type member with a twisted parallelogram according to claim 1, wherein in the step b, the cutting angles of the upper wing plate, the lower wing plate, the left web plate and the right web plate are adjusted to be inclined at 45 degrees when the upper wing plate, the lower wing plate, the left web plate and the right web plate are blanked.
3. The method for making a box-type member with a twisted parallelogram according to claim 1, wherein in step e, the local bending is performed by flame straightening, so that the lower wing plate is closely attached to the jig frame for supporting, and the left web plate and the right web plate are closely attached to the partition plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210231393.1A CN114406627B (en) | 2022-03-10 | 2022-03-10 | Manufacturing method of bent-twisted parallelogram box-shaped component |
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| CN202210231393.1A CN114406627B (en) | 2022-03-10 | 2022-03-10 | Manufacturing method of bent-twisted parallelogram box-shaped component |
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| CN114406627A CN114406627A (en) | 2022-04-29 |
| CN114406627B true CN114406627B (en) | 2023-04-11 |
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| KR100825686B1 (en) * | 2006-01-25 | 2008-04-29 | 주식회사동양강철 | The aluminum alloy sub-frame for a car, and the manrfacturing method of the same |
| CN104912258A (en) * | 2015-04-17 | 2015-09-16 | 宝钢钢构有限公司 | Making method of isosceles trapezoid variable cross section bending member |
| EP3379001B1 (en) * | 2017-03-22 | 2020-01-08 | Marte and Marte Limited Zweigniederlassung Österreich | Arbitrarily curved support structure |
| CN109531062B (en) * | 2018-11-23 | 2021-04-30 | 防城港中一重工有限公司 | Method for manufacturing uneven bending box beam rotary ladder |
| CN215193101U (en) * | 2021-02-19 | 2021-12-17 | 王京京 | Adjustable obstetrical bed of obstetrical nursing |
| CN113294001A (en) * | 2021-06-22 | 2021-08-24 | 上海宝冶集团有限公司 | Hyperbolic bent-torsional parallelogram box-shaped beam structure and manufacturing and construction method |
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