CN111890507A - Shaping and accurate positioning processing device and processing method for multi-curve complex wood veneer unit plate - Google Patents
Shaping and accurate positioning processing device and processing method for multi-curve complex wood veneer unit plate Download PDFInfo
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- 238000012545 processing Methods 0.000 title claims abstract description 173
- 239000002023 wood Substances 0.000 title claims abstract description 43
- 238000007493 shaping process Methods 0.000 title claims abstract description 26
- 238000003672 processing method Methods 0.000 title description 5
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 258
- 239000010959 steel Substances 0.000 claims abstract description 258
- 238000000034 method Methods 0.000 claims abstract description 30
- 238000005452 bending Methods 0.000 claims description 47
- 238000010276 construction Methods 0.000 claims description 41
- 238000003754 machining Methods 0.000 claims description 32
- 238000004519 manufacturing process Methods 0.000 claims description 26
- 239000002994 raw material Substances 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 4
- 238000012795 verification Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000005034 decoration Methods 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 11
- 238000009434 installation Methods 0.000 description 37
- 238000013461 design Methods 0.000 description 18
- 239000010410 layer Substances 0.000 description 15
- 229910052602 gypsum Inorganic materials 0.000 description 8
- 239000010440 gypsum Substances 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- 238000005336 cracking Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000002344 surface layer Substances 0.000 description 4
- 238000009435 building construction Methods 0.000 description 3
- 238000013507 mapping Methods 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 239000011505 plaster Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/74—Making other particular articles frames for openings, e.g. for windows, doors, handbags
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/12—Bending rods, profiles, or tubes with programme control
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
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Abstract
The invention relates to a shaping and accurate positioning processing device for a multi-curve complex wood veneer unit plate, wherein the unit plate is made of two steel frames, a plurality of flat steels and a plurality of support rods, a steel plate covering surface covers the unit frame, the shaping and accurate positioning processing device structurally comprises a working platform and a processing and checking platform which are matched with each other, and the working platform is placed close to the processing and checking platform, and the processing process is also related. The shaping and accurate positioning processing device is specially used for processing unit plates in external factories, breaks through the fence in the prior art, has good practical effect, and the processed unit plates have accurate size and complete and accurate matching, and the combined ribbon decorations are flexible, elegant and rich in texture, thereby obtaining good social and economic benefits.
Description
Technical Field
The invention relates to the field of architectural decoration, in particular to a shaping and accurate positioning processing device for processing a multi-curve complex wood veneer unit plate and a processing method thereof.
Background
In the present building construction field, by combining the BIM model with the digital construction system, many components in the building can be processed in different places, directly transported to the building construction site, and assembled into the building (such as GRG, arc ceiling aluminum plate, etc.). The prefabricated building components can be automatically completed through digital construction, and the components manufactured by the precision mechanical technology of a factory not only reduce construction errors, but also greatly improve the productivity of component manufacturing, so that the construction period of the whole building construction is shortened and the construction is easy to control.
For buildings with complicated special-shaped decorative surfaces, in particular to structures with artistic shapes such as ribbons, the prior art is that the structures are directly integrated by a base layer and a decorative surface through digital auxiliary design and technologies such as numerical control processing and the like, and then the structures are directly assembled on site. However, for the wood-faced streamer inside a large-scale venue, the requirements are high and strict, the requirements on the appearance precision are high, the requirements on acoustic requirements and smooth and seamless appearance are guaranteed, the situation that the streamer cannot be realized through direct assembly type assembly of one material is caused, and the streamer can be realized only through precise calculation and scientific piece-dividing construction.
At present, the mainstream special-shaped wood veneer in the industry is divided into parts according to the processing capacity of a factory and the specification of a plate, and a process seam is required to be left between wood veneer plates after the installation is finished. Aiming at the construction of the ribbon-shaped wood veneer on the inner wall surface of a theater, the requirements of rigidity and flexibility are met according to the shape, the internal and external corners are clear, and no parting is formed. Meanwhile, a series of problems such as acoustics, material resonance, fire prevention, temperature change influence, structural strength and the like need to be considered in a theater. At present, no precise corresponding processing tool and processing technology exist in the processing after the splitting, and further exploration and research and development are needed.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a shaping and accurate positioning processing device for processing a multi-curve complex wood veneer unit plate and a processing method thereof. The shaping and accurate positioning processing device is specially used for processing unit plates in an external factory and is matched with a special processing technology, the fence part of the prior art is broken through, the practical effect is very good, and the processed unit plates are accurate in size and complete and accurate in matching.
In order to achieve the purpose of the invention, the technical scheme provided by the invention patent is as follows:
a shaping and accurate positioning processing device for a multi-curve complex wood veneer unit plate is characterized in that the unit plate is made into a unit frame by two steel frames, a plurality of flat steels and a plurality of support rods, a steel plate covering surface covers the unit frame, the shaping and accurate positioning processing device structurally comprises a working platform and a processing and checking platform which are matched with each other, and the working platform is placed close to the processing and checking platform;
the working platform comprises an operation table top and supporting legs, the four supporting legs are respectively arranged at the bottom of the square operation table top, criss-cross square grids are arranged on the operation table top of the working platform, scales are marked on the grids to serve as control coordinates, and the steel frame is machined on the working platform;
the processing and checking platform structurally comprises a construction platform, the construction platform is laid on the ground in a factory building, one side of the construction platform is provided with a vertical fixing backer board, one side, opposite to the backer board, of the construction platform is provided with a pre-assembled support at a movable position, grids are respectively arranged on the construction platform and the backer board, scales are arranged on the grids, and unit plates are spliced and assembled on the processing and checking platform.
The unit plate to be processed structurally comprises a base layer framework, a steel framework is longitudinally used as a main body of the base layer framework, two sides of the steel framework are parallel supporting legs, a bending section which is in accordance with the angle of a curved surface is arranged in the middle of the steel framework, two ends of the bending section are respectively fixed on the upper parts of the supporting legs, flat steel which is bent by a numerical control bending machine is transversely used, two ends of the flat steel are respectively fixed on the bending sections, supporting rods are arranged on the supporting legs of the two opposite steel frameworks, the unit framework is made of the two steel frameworks, the flat steel and the supporting rods, and the steel plate mask surface covers the surface of the flat steel of the unit framework.
A method for processing a multi-curve complex wood veneer unit plate by utilizing a shaping and precise positioning processing device is characterized by comprising the following steps:
the method comprises the steps that firstly, pieces are divided on a ribbon-shaped three-dimensional model, longitudinal and transverse cutting is carried out along coordinate axes during piece division, longitudinal dividing lines are perpendicular to a horizontal plane and are parallel to each other, adjacent longitudinal dividing lines are the lengths of unit plates, transverse boundary lines are selected on internal corner lines or external corner lines of the ribbon shape, a coordinate system is kept unchanged during division, the manufacturing and installing precision of each unit plate after piece division is guaranteed, the ribbon three-dimensional model is divided into a plurality of unit plates, each unit plate is converted into an independent machining model, corresponding machining views are generated, a coordinate control table and a machining size control table of each unit plate are manufactured, and each numbered unit plate is provided with an independent machining model and machining view;
secondly, a shaping and accurate positioning processing device of the unit plate is arranged on the construction site as the construction site of the unit plate in an external processing factory, the shaping and accurate positioning processing device structurally comprises a working platform and a processing and checking platform which are matched with each other, the working platform is placed close to the processing and checking platform, raw materials required by processing the unit plate are prepared, and the raw materials comprise angle steel, flat steel, steel plate mask and supporting flat steel;
thirdly, machining a steel frame on the working platform, machining each section of angle steel according to a size control table of a unit plate to be machined, welding and fixing the angle steel according to the included angle of adjacent angle steel on the size control table, wherein two sides of the manufactured steel frame are parallel supporting legs, the middle part of the manufactured steel frame is provided with a bending section which is in accordance with the angle of a curved surface, two ends of the bending section are respectively fixed on the upper parts of the supporting legs, and an AB sleeve machining mode of the adjacent steel frames is adopted when the steel frame is machined on the working platform, namely, the two adjacent steel frames are machined simultaneously, and the two steel frames are ensured to be;
fourthly, processing flat steel by using a numerical control pipe bender, wherein each flat steel is provided with five coordinate control points which are formed according to a size control table to ensure the bending distance and the bending angle;
fifthly, assembling and processing unit plates on a processing and checking platform, fixing two steel frames of the unit plates to be processed on the processing and checking platform in parallel, controlling the positions of the steel frames to meet the requirements by using grids with scales on the processing and checking platform, fixedly keeping the steel frames to be vertical to the processing and checking platform by using a temporary fixing support outside each steel frame, placing a plurality of square steels on the processing and checking platform, placing one square steel at three positions in the middle of each flat steel, marking the height coordinate of a control point at the upper part of each square steel, connecting two ends of each flat steel with the steel frames, wherein the connecting part is the other two control point coordinates of each flat steel, arranging a plurality of square steels according to the number of the flat steels, and temporarily fixing the bottoms of the square steels on the processing and checking platform;
sixthly, fixing a plurality of flat steels on the steel frame according to the control points, ensuring the positions of three control points in the middle by using three square steels in the middle when each flat steel is fixed, enabling the positions of two control points at two ends to be positioned on the steel frame, forming a unit frame after the flat steels are fixed on the steel frame, and arranging a plurality of support rods according to the integral condition to ensure the stability;
seventhly, covering a steel plate mask on the manufactured unit frame, wherein the shape of the steel plate mask is determined according to the internal corner line or the external corner line where the flat steel is located, covering the steel plate mask on the surface where the flat steel of the unit frame is located, removing the corresponding square steel when covering each steel plate mask, removing the square steel one by one, and adding a support rod on a position with large span;
and eighthly, detecting the size and specification of the numbered unit plate, and determining that the unit plate is finished after the unit plate is qualified and correct.
For the method for processing the multi-curved complex wood veneer unit plate, the unit plate is converted into an independent processing model after being divided into pieces in the first step, the position and the size of the processing model are marked by the coordinates of four corners, the processing model is further divided into pieces and subjected to coordinate conversion, the further division is that three division surfaces are made according to the longitudinal direction of the processing model and are parallel to a longitudinal division line, three intersection points are formed between the three division surfaces and each transverse division line, the space position determination is carried out on the five intersection point coordinates of the division lines, the processing size and the control point of each converted unit plate are displayed on the size control table, the control point is marked by X, Y, Z three-dimensional coordinates, and the control point coordinates are converted into the processing platform coordinates in which the unit plates are transversely placed by the space coordinates in which the unit plates are longitudinally placed.
In the second step, each unit plate is provided with a corresponding processing dimension control table which lists the dimension length and the included angle of the bending part of the frame after longitudinal division and five control point coordinates on each transverse boundary line, and the coordinates are projected on a working platform and a processing verification platform to serve as dimension control standards.
In the third step, the AB sleeve processing mode refers to that the steel frames which are contacted with each other between the adjacent unit plates are processed together, the steel frames are processed simultaneously to ensure that the size and the angle are the same, and a plurality of bolt holes which can connect and fix the steel frames and the angle are processed on a machine tool simultaneously.
In the fifth step, the temporary fixing support is obliquely fixed between the steel frame and the processing and checking platform, the upper end of the temporary fixing support is fixed at the upper end of the steel frame, the lower end of the temporary fixing support is fixed on the processing and checking platform, so that the steel frame is vertically fixed on the processing and checking platform, the opposite steel frame is also vertically fixed on the processing and checking platform, the two steel frames are parallel, and the connecting parts of the steel frame and the flat steel after standing are two control points at two ends of a boundary line.
In the sixth step, on the unit plate after the support rods are arranged, the two sides of the steel frame are parallel support legs, a lower chord is fixed between the two support legs, the two ends of the lower chord are vertically fixed at the middle positions of the two support legs, the upper part of the steel frame is provided with a bending section according with a curved surface angle, the middle part of the bending section is used as an upper chord, the two ends of the bending section are respectively fixed at the upper parts of the support legs, the bending angle of the node part of the bending section corresponds to the angle of the external angle of the unit plate line type, a plurality of vertical rods are vertically arranged between the upper chord and the lower chord, the vertical rods are parallel to the support legs, the part with large span between the upper chord and the lower chord is also provided with an inclined rod, and the support rods are also arranged between the two opposite steel frames.
In the seventh step, before covering the steel plate skin, a thin flat steel line for supporting is additionally arranged between adjacent internal corner lines or external corner lines if the span is large or the curved surface is gentle, and the thin flat steel line is thinner than flat steel and is convenient for manual bending.
Based on the technical scheme, the external processing part separating, processing and mounting method for the ribbon-shaped wood veneer decoration project obtains the following technical effects through practical application:
1. the invention aims at the design, production and installation engineering of ribbon-shaped ornaments in a large-scale art venue, and the large-scale ribbon-shaped ornaments have larger size, are integrally distributed in a C shape, have the installation height of dozens of meters and the length of dozens of meters, have the height of two to three meters, require the surfaces of the ornaments to have solid wood texture, are elegant and natural, meet the acoustic requirements and cannot generate the phenomenon that echo and the like influence the acoustic effect of the art venue, and the decoration form, the size height and the structural form have not been used before, thereby causing great difficulty for design and construction. The invention relates to a method for manufacturing a ribbon-shaped ornament, which aims at the situation, utilizes a digital technology to divide the integral ribbon-shaped ornament into pieces, then the pieces are processed into unit plates through an external factory after being divided, then the unit plates are transported to the site for splicing, and finally the wooden decorative surface is processed, and the design, the division, the processing and the construction are completed by a plurality of steps, thereby breaking through the fence in the prior art, having very good practical effect, and the finished ribbon-shaped ornament is flexible, elegant and rich in texture, and obtaining good evaluation of a design party and an owner party.
2. The invention discloses a method for designing a large-scale ribbon-shaped ornament, which is implemented by adopting a BIM mode, and then the internal dimension of a building after actual completion is measured on site to carry out reverse modeling, so that the overall characteristic of an actual ribbon is simulated, and piece splitting is carried out by utilizing software, the longitudinal parallel mode position is adopted during piece splitting, and the internal corner line or the external corner line position of the ribbon design is transversely selected, so that continuity and continuity are kept after piece splitting, the smoothness of transition is ensured, and the processing capacity and the transportation capacity of a factory are considered by the size of each unit plate during piece splitting, so that the hoisting transportation and the assembly are facilitated. When the parts are separated, the curved surfaces and the curved lines are processed to be straight as far as possible on the premise of not influencing the overall effect, and the difficulty and the cost of actual processing are reduced.
3. The invention discloses a special auxiliary tool for processing unit plates, which aims to ensure the precision and the processing convenience, and comprises a working platform for processing a steel frame and a processing and checking platform for fixing the steel frame, flat steel and a steel mask surface.
4. The invention discloses a method for checking whether unit plates meet drawing requirements and practical installation requirements or not by simulating an actual installation environment, and further ensuring the manufacturing and installation accuracy.
5. The unit plate block of the patent application of the invention is transported to the construction site, the installation position of the ribbon-shaped ornament in the construction site is fixed with a special base layer framework, the base layer framework is used as the installation support of the unit plate block, the purpose is to ensure the accuracy of the installation position, the structure of the base layer framework adopts the form of a front horizontal shelf, the rear end is connected to the wall of a building, and a plurality of inclined struts are utilized to ensure that the base layer framework can bear the weight of the whole ribbon, the design form of a plurality of horizontal shelves at the front end is the unit plate block which can be placed in place, and the horizontal position is adjusted, thus innovatively solving the problems of installation and adjustment, and further improving the installation convenience and the installation accuracy.
6. When the unit plates are installed, a height marking point is determined on a basic framework and serves as an installation supporting point (Z), a horizontal coordinate point (Y) is determined on the supporting point of each unit plate, a final transverse coordinate point (X) is determined through the in-and-out adjustment of a supporting frame on the basic framework, after the positioning is completed, a total station is used for rechecking the control elevation, after the rechecking is qualified, adjacent unit plates are sequentially assembled, and the rechecking is carried out once after four unit plates are installed so as to ensure the installation accuracy.
7. After the unit plates are assembled, firstly plaster laths are pasted on the back of the steel plate covering surface of the unit plates for balancing weight, 35 kilograms of plaster plates are balanced per square meter to meet the acoustic requirement when the weight is balanced, then high-density laths are fixed on the surface of the steel plate covering surface, and finally, wood veneers are pasted on the high-density laths. The gypsum lath is convenient to mount in a form of being assembled behind and cannot cause the risk of surface paint skin and cracking, the gypsum lath is adopted as a counter weight to meet the acoustic requirement, and the dense small holes are distributed on the surface of the steel plate covering, so that the high-density lath is easier to be connected through environment-friendly glue, the connection strength is improved, and the subsequent cracking and opening are avoided. Through the surface treatment in a multilayer form, the large ribbon-shaped ornament can meet the acoustic requirements of an art venue, and the surface of the large ribbon-shaped ornament has a smooth, elegant and flexible dynamic shape, so that the wooden surface of the large ribbon-shaped ornament has more texture, and the double effects of technical benefits and social benefits are achieved.
Drawings
Fig. 1 is an operational flow diagram of an external machining subassembly, machining and installation method for a banderol wood veneer decoration project.
Fig. 2 is a schematic view of the structure of the banderol decorative cover to be installed in processing in the invention.
Fig. 3 is a schematic view of the outer processing piece, the processing and the installation method of the streamer-shaped decorative surface used for the streamer-shaped wood veneer decorative engineering.
Fig. 4 is a schematic structural view of a working platform in the shaping and precise positioning processing device for processing the multi-curve complex wood veneer unit plate.
Fig. 5 is a schematic structural view of a processing verification platform in the shaping and precise positioning processing device for processing the multi-curve complex wood veneer unit plate.
Fig. 6 is a schematic diagram of the placement of square steel during the processing of a multi-curved complex wood veneer unit plate by using a shaping and precise positioning processing device according to the present invention.
Fig. 7 is a schematic diagram of a process for manufacturing a multi-curved complex wood veneer unit block using a shaping and precision positioning device according to the present invention.
Fig. 8 is a schematic structural view of a finished unit plate of the shaping and precise positioning processing method for processing a multi-curved complex wood veneer unit plate of the present invention.
Fig. 9 is a schematic structural diagram of a unit block covered with a surface layer in the external processing and splitting, processing and mounting method for the ribbon-shaped wood veneer decoration project.
Detailed Description
The present invention will be described in further detail with reference to the drawings and specific examples, so as to understand the structure and operation of the outer working sub-part, the working and the installation method for the decoration of ribbon-like wood veneer, but the scope of the present invention should not be limited thereby.
The invention relates to a construction method for designing large-scale special-shaped ribbon-shaped ornaments in large-scale buildings such as art venues and the like, and solves the problem that the installation and correction of actual ornaments are completed from the beginning of a design model, so that an effect entity of art design is presented. Compared with other special-shaped multi-curved-surface ornaments in the prior art, the large-sized C-shaped ribbon-shaped ornament has higher complexity, and is characterized by large size, high installation position, more control points, obvious shape change and higher construction difficulty, can be directly applied without the existing construction process, and must be reconstructed from design, manufacture to specific construction. The invention adopts a digital auxiliary construction method to combine the internal structure requirements of a large-scale venue, aims at the appearance and performance requirements of a complex special-shaped decorative surface, particularly a large-scale wood veneer streamer, adopts a form of field scanning and reverse modeling, combines the structure composition requirements, designs a proper base layer curved surface by using a computer, divides unit blocks, carries out factory processing and field installation on the unit blocks, and finally manufactures the whole artistic surface layer, thereby ensuring the structural performance and the acoustic artistic requirements of the wood veneer streamer.
As shown in fig. 1, the present invention is a method for separating, externally processing and installing a ribbon-shaped wood veneer decoration project, which is a process of displaying ribbon-shaped decorations designed by designers from a model drawing to a solid decoration. As shown in figure 2, the ribbon-shaped facing installed in the large-scale art venue is a semi-enclosed structure which is integrally C-shaped, and structurally comprises a base framework, unit plates and a wood facing surface layer, wherein the base framework is installed on the inner wall of the large-scale art venue, a plurality of unit plates are installed on the base framework and spliced into a ribbon shape, the wood facing surface layer is arranged on the spliced unit plates, and the method comprises a part dividing link, an external processing link and an installation link,
the part splitting link comprises the following steps:
a, dividing the three-dimensional model of the ribbon shape according to factory processing, transportation capacity and economy, so that the length of each unit plate after division is not more than 2.5 m, the height is not more than 2 m, the continuity of the ribbon shape is kept during division, and the operation mode of dividing the three-dimensional model of the ribbon shape is as follows: firstly, carrying out space surveying and mapping on the interior of a large-scale venue finished by civil engineering construction, carrying out field scanning surveying and mapping by using a three-dimensional scanner, and generating a point cloud model from surveying and mapping points; integrating the generated point cloud model with a BIM model in the large venue to form a three-dimensional model of a lightweight solid grid surface; and finally, dividing the unit blocks of the integral base layer surface of the complex special-shaped decorative surface on the three-dimensional model, and dividing the parts into pieces as shown in figure 3.
And B, performing longitudinal and transverse cutting along coordinate axes during splitting to ensure that the longitudinal split lines are perpendicular to the horizontal plane and are parallel to each other, wherein adjacent longitudinal split lines are the lengths of the unit plates, transverse boundary lines are selected on the internal corner line or the external corner line of the ribbon shape, a coordinate system is kept unchanged during splitting to ensure the manufacturing and installation precision of each unit plate after splitting, a software system is utilized to split the three-dimensional model of the ribbon into a plurality of unit plates, each unit plate is converted into an independent processing model to generate a corresponding processing view, four-point position information is output to the unit plates, each output unit block is numbered, and simultaneously, curved surface edge lines of the unit blocks are extracted and a three-dimensional wire frame model is derived.
And C, properly correcting the longitudinal dividing line of the unit plate, and correcting the arc part approximate to the straight line into the straight line so as to control the machining precision. The design of the large-scale ribbon-shaped ornaments is completed in a BIM mode, the internal dimension of a building after actual completion is measured on site, reverse modeling is carried out, the overall characteristic of an actual ribbon is simulated, software is utilized for splitting, longitudinal parallel mode positions are adopted during splitting, the positions of internal corner lines or external corner lines of the ribbon design are transversely selected, continuity and continuity are guaranteed after splitting, the smoothness of transition is guaranteed, and the processing capacity and the transportation capacity of a factory are considered for the size of each unit plate during splitting, so that hoisting transportation and assembling are facilitated. When the parts are separated, the curved surfaces and the curved lines are processed to be straight as far as possible on the premise of not influencing the overall effect, and the difficulty and the cost of actual processing are reduced.
And D, manufacturing a coordinate control table and a machining size control table of each unit plate, wherein each numbered unit plate is provided with an independent machining model and a machining view.
In the external processing link:
and E, processing the divided unit plate in an external processing factory, manufacturing each unit plate in a processing model and a processing view, wherein the unit plate to be processed structurally comprises a base layer framework, a steel framework is longitudinally used as a main body of the base layer framework, two sides of the steel framework are parallel supporting legs, a bending section which is in accordance with a curved surface angle is arranged in the middle of the steel framework, two ends of the bending section are respectively fixed on the upper parts of the supporting legs, flat steel which is bent by a numerical control bending machine is transversely used, two ends of the flat steel are respectively fixed on the bending sections, supporting rods are arranged on the supporting legs of the two opposite steel frameworks, the unit framework is manufactured by two steel frameworks, a plurality of flat steels and a plurality of supporting rods, and the surface of the flat steel of the unit framework is covered with a steel plate mask.
F, synchronously processing two longitudinal steel frames between adjacent unit plates by A, B sleeves to keep the structural configurations of the two units identical, simultaneously punching holes on a numerical control machine tool to form corresponding connecting holes after the adjacent steel frames are aligned, screwing the knocking bolts through the connecting holes in the installation process, correcting the outer contour line of the surface while realizing the reinforced connection, and ensuring that the arc of the outer contour line is smooth and continuous;
g, designing a special working platform in an external processing factory to ensure the processing precision of the unit plate block, wherein the working platform comprises an operation table top and supporting legs, the four supporting legs are respectively arranged at the bottom of the square operation table top, criss-cross square grids are arranged on the operation table top of the working platform, scales are marked on the grids to serve as control coordinates, the steel frames are processed and welded on the working platform according to a processing view and a size control table, two adjacent AB steel frames are simultaneously processed during processing and welding, transversely bent flat steel is processed on the numerical control pipe bender, and control points are set according to the control size during flat steel processing to match the trend of surface arcs;
h, assembling the processed steel frame, flat steel and skin into corresponding unit plates by using a special processing and checking platform, assembling and manufacturing each unit plate with independent number and adjacent unit plates together, connecting the steel frames processed by the AB sleeve together by using bolts to ensure the connection precision of the adjacent unit plates, arranging angle iron frames at two sides of the processing and checking platform, standing and fixing the steel frames according to coordinates, controlling the verticality and levelness of the basic frame to control the precision, controlling the positioning of the transverse flat steel manufactured by using a numerical control pipe bender by using the coordinates of a grid platform, and controlling the positioning by using at least five space points (X, Y and Z) for each transverse flat steel;
and I, pre-assembling in a factory to assemble each manufactured unit plate according to the number, assembling four to six adjacent unit plates in groups in the factory, measuring the size and correcting, and calibrating each unit plate after checking and correcting. According to the invention, when unit plates are processed in an external processing factory, the matching consistency of adjacent unit plates is ensured by adopting an AB surface processing mode, the verification and adjustment are carried out by adopting a pre-assembly mode of a plurality of unit plates, and whether the unit plates meet the drawing requirements and practical installation requirements is checked by simulating the actual installation environment, so that the manufacturing and installation precision is further ensured.
In the installation step:
j, disassembling the corrected and shaped unit plates, respectively transporting the unit plates to a construction site, and placing the unit plates in a classified manner so as to be convenient for actual assembly;
k, the preparation of on-the-spot basic unit's framework, the height control of basic unit's framework is realized according to the coordinate in the coordinate control table, basic unit's framework including fix the support frame on the wall and be in the horizontal shelf at support frame free end position, still be equipped with the bracing between support frame and horizontal shelf and wall, horizontal shelf is equipped with the multiunit according to the position height, and basic unit's profile shape is the ribbon trend. The unit plate block of the patent application of the invention is transported to the construction site, the installation position of the ribbon-shaped ornament in the construction site is fixed with a special base layer framework, the base layer framework is used as the installation support of the unit plate block, the purpose is to ensure the accuracy of the installation position, the structure of the base layer framework adopts the form of a front horizontal shelf, the rear end is connected to the wall of a building, and a plurality of inclined struts are utilized to ensure that the base layer framework can bear the weight of the whole ribbon, the design form of a plurality of horizontal shelves at the front end is the unit plate block which can be placed in place, and the horizontal position is adjusted, thus innovatively solving the problems of installation and adjustment, and further improving the installation convenience and the installation accuracy.
And L, hoisting and positioning, namely determining a height marking point on the basic framework, wherein the height marking point is used as a mounting supporting point (Z), a horizontal coordinate point (Y) needs to be determined on the supporting point for each unit plate, a final transverse coordinate point (X) is determined through in-out adjustment of a supporting frame on the basic framework, after positioning is completed, rechecking is carried out on the control elevation by using a total station, adjacent unit plates are assembled in sequence after rechecking is qualified, and rechecking is carried out once again after four unit plates are mounted so as to ensure mounting accuracy.
M, sequentially assembling each unit plate block, finishing the assembly to reproduce the integral modeling of the three-dimensional model, carrying out counterweight and veneer installation, firstly pasting gypsum laths on the back surfaces of the steel plate surfaces of the unit plate blocks to carry out counterweight, balancing 35 kilograms of gypsum boards per square meter to meet the acoustic requirement during counterweight, then fixing high-density laths on the surfaces of the steel plate surfaces, finally pasting wood skins on the high-density laths, and detecting the processing and installation operation of the accurately finished ribbon-shaped wood veneer, wherein for each unit plate block, the finished structure is as shown in figure 9. After the unit plate blocks are assembled, the ribbon-shaped decorations are firstly adhered with gypsum laths on the back surfaces of the steel plate covers on the unit plate blocks for balancing, 35 kilograms of gypsum plates are balanced per square meter during balancing to meet the acoustic requirements, then high-density laths are fixed on the surfaces of the steel plate covers, and finally, veneers are adhered on the high-density laths. The gypsum lath is convenient to mount in a form of being assembled behind and cannot cause the risk of surface paint skin and cracking, the gypsum lath is adopted as a counter weight to meet the acoustic requirement, and the dense small holes are distributed on the surface of the steel plate covering, so that the high-density lath is easier to be connected through environment-friendly glue, the connection strength is improved, and the subsequent cracking and opening are avoided.
In the external processing and splitting method for the ribbon-shaped wood veneer decoration project, unit plate processing needs to ensure precision and processing convenience, special auxiliary tools are specially designed, the auxiliary tools comprise a working platform for processing a steel frame and a processing and checking platform for fixing the steel frame and a flat steel and steel mask, the corresponding degree of adjacent steel frames is practically guaranteed by adopting an AB surface processing mode, meanwhile, mounting holes are processed to ensure accurate alignment during assembly, in addition, a numerical control bending machine is adopted for processing the flat steel to ensure that the bending size is in place, and the other function of the processing and checking platform is to splice the adjacent unit plates together for multiple integral assembly.
As shown in fig. 4 and 5, as a special tool, a special shaping and precise positioning processing device for a multi-curve complex wood veneer unit plate is designed to manufacture the unit plate. The unit plate is characterized in that the unit plate is made of two steel frames 3, a plurality of flat steels 5 and a plurality of support rods 6, a steel plate covering 7 covers the unit frame, the shaping and accurate positioning processing device structurally comprises a working platform 1 and a processing and checking platform 2 which are matched with each other, and the working platform 1 is arranged close to the processing and checking platform 2;
the working platform 1 comprises an operation table top 11 and four supporting legs 12, wherein the four supporting legs 12 are respectively arranged at the bottoms of four corners on the square operation table top 11, criss-cross square grids are arranged on the operation table top 11 of the working platform 1, scales are marked on the grids to serve as control coordinates, and the steel frame 3 is machined on the working platform 1;
processing check-up platform structure 2 on including construction platform 21, this construction platform 21 lays subaerial in the factory building, one side of construction platform 21 is equipped with vertical fixation's backer 22, on construction platform 21 with one side that is relative by backer 22 is equipped with a movable position assemble support 23 in advance construction platform 21 and backer 22 are last to be equipped with the net respectively, are equipped with the scale on the net, the unit plate splice the equipment and accomplish on processing check-up platform 2.
The method for processing the multi-curve complex wood veneer unit plate by utilizing the shaping and accurate positioning processing device comprises the following steps:
the method comprises the steps of firstly, splitting a ribbon-shaped three-dimensional model, longitudinally and transversely cutting along coordinate axes during splitting to ensure that longitudinal split lines are perpendicular to a horizontal plane and are parallel to each other, adjacent longitudinal split lines are the lengths of unit plates, transverse boundary lines are selected on internal corner lines or external corner lines of the ribbon shape, a coordinate system is kept unchanged during splitting to ensure the manufacturing and installation precision of each unit plate after splitting, converting the ribbon three-dimensional model into a plurality of unit plates, converting each unit plate into an independent processing model to generate a corresponding processing view, manufacturing a coordinate control table and a processing dimension control table of each unit plate, wherein each numbered unit plate has an independent processing model and a processing view, converting the unit plates into independent processing models after splitting, and the positions and the dimensions of the processing models are marked by the coordinates of four corners, the machining model is further divided into three parts and subjected to coordinate conversion, the further division is that three division surfaces are made according to the fact that the three division surfaces are longitudinally parallel to longitudinal division lines, three intersection points are formed on the three division surfaces and each transverse boundary line, five intersection point coordinates are formed on the boundary lines, space position determination is conducted, the machining size and the control point of each converted unit plate are displayed on the size control table, the control point is marked by X, Y, Z three-dimensional coordinates, and the control point coordinates are machining platform coordinates formed by converting the space coordinates formed by the longitudinal arrangement of the unit plates into the transverse arrangement of the unit plates.
The second step, the job site as the unit plate of outer processing mill, the moulding and the accurate location processingequipment of unit plate set up at the job site, should mould and accurate location processingequipment is structural including the work platform and the processing check platform that the cooperation was used, work platform be close to and place in the processing check platform, prepare the required raw materials of unit plate processing, this raw materials is including angle steel, band steel, steel sheet mask and support band steel, every unit plate all has corresponding processing dimension control table, lists the size length of the size of longitudinal division back frame and the department of buckling contained angle size to and five control point coordinates on every horizontal boundary, this coordinate projection is as size control standard in work platform and processing check platform.
Thirdly, machining a steel frame on the working platform, machining each section of angle steel according to a size control table of a unit plate to be machined, welding and fixing the angle steel according to the included angle of adjacent angle steel on the size control table, wherein two sides of the manufactured steel frame are parallel supporting legs, the middle part of the manufactured steel frame is provided with a bending section which is in accordance with the angle of a curved surface, two ends of the bending section are respectively fixed on the upper parts of the supporting legs, and an AB sleeve machining mode of the adjacent steel frames is adopted when the steel frame is machined on the working platform, namely, the two adjacent steel frames are machined simultaneously, and the two steel frames are ensured to be; the AB sleeve processing mode refers to that steel frames which are contacted with each other between adjacent unit plates are processed together, the steel frames are processed simultaneously to ensure that the size and the angle are the same, and a plurality of bolt holes which can connect and fix the steel frames and the unit plates are processed on a machine tool simultaneously.
Fourthly, processing flat steels 5 by using a numerical control pipe bender, wherein each flat steel 5 is provided with five coordinate control points which are formed according to a size control table to ensure the bending distance and the bending angle;
fifthly, assembling and processing unit plates on a processing and checking platform, fixing two steel frames of the unit plates to be processed on the processing and checking platform in parallel, controlling the positions of the steel frames to meet requirements by using grids with scales on the processing and checking platform, fixing and keeping the steel frames to be vertical to the processing and checking platform 21 by using a temporary fixing support 4 on the outer side of each steel frame 3, placing a plurality of square steels 8 on the processing and checking platform 21, placing one square steel 8 at three positions in the middle of each flat steel 5, marking the height coordinate of a control point at the upper part of each square steel 8 as shown in fig. 6, connecting two ends of each flat steel 5 with the steel frames 3, wherein the connecting part is the coordinates of the other two control points of each flat steel, arranging a plurality of square steels 8 according to the number of the flat steels 5, and temporarily fixing the bottoms of the square steels 8 on the processing and checking platform 21; the temporary fixing support 4 is obliquely fixed between the steel frame 3 and the processing and checking platform 21, the upper end of the temporary fixing support 4 is fixed at the upper end of the steel frame 3, the lower end of the temporary fixing support 4 is fixed on the processing and checking platform 21, so that the steel frame 3 is vertically fixed on the processing and checking platform 21, the opposite steel frame 3 is also vertically fixed on the processing and checking platform 21, the two are kept parallel, and the connecting part of the steel frame 3 and the flat steel 5 after standing is two control points at two ends of a boundary line.
And sixthly, fixing a plurality of flat steels on the steel frame according to the control points, ensuring the positions of the three control points in the middle by using three middle square steels when each flat steel is fixed, and forming a unit frame after the flat steels are fixed on the steel frame as shown in fig. 7, wherein two control points at two ends are positioned on the steel frame, and a plurality of support rods are arranged according to the integral condition to ensure the stability. On the unit plate behind the setting bracing piece 6, steel frame 3's both sides are parallel landing leg 31, are fixed with lower chord 33 between two landing legs 31, and the middle part position of two landing legs 31 is fixed in perpendicularly at the both ends of this lower chord 33, are equipped with the bending segment 32 that accords with curved surface angle on steel frame 3's upper portion, and the middle part of bending segment 32 is as last chord 34, and the upper portion at landing leg 31 is fixed respectively at the both ends of this bending segment 32, and the bending angle at bending segment 32's node position corresponds to the angle of the external corner at this unit plate line type place be equipped with many montants 35 perpendicularly between last chord 34 and the lower chord 33, this montant 35 is on a parallel with landing leg 31 the position that the span is big between last chord 34 and the lower chord 33 still is equipped with down tube 36, also is equipped with bracing piece 6 between two relative steel frame 3.
Seventhly, covering a steel plate mask on the manufactured unit frame, wherein the shape of the steel plate mask is determined according to the internal corner line or the external corner line where the flat steel is positioned, covering the steel plate mask on the surface where the flat steel of the unit frame is positioned, removing the corresponding square steel when covering each steel plate mask, removing the square steel one by one, adding a support rod at a position with large span, and finishing the unit plate as shown in fig. 8; before covering the steel plate skin, thin flat steel lines for supporting are additionally arranged between adjacent internal corner lines or external corner lines if the span is large or the curved surface is gentle, and the thin flat steel lines are thinner than flat steel and are convenient for manual bending.
And eighthly, detecting the size and specification of the numbered unit plate, and determining that the unit plate is finished after the unit plate is qualified and correct.
The invention aims at the design, production and installation engineering of ribbon-shaped ornaments in a large-scale art venue, and the large-scale ribbon-shaped ornaments have larger size, are integrally distributed in a C shape, have the installation height of dozens of meters and the length of dozens of meters, have the height of two to three meters, require the surfaces of the ornaments to have solid wood texture, are elegant and natural, meet the acoustic requirements and cannot generate the phenomenon that echo and the like influence the acoustic effect of the art venue, and the decoration form, the size height and the structural form have not been used before, thereby causing great difficulty for design and construction. The invention relates to a method for manufacturing a ribbon-shaped ornament, which aims at the situation, utilizes a digital technology to divide the integral ribbon-shaped ornament into pieces, then the pieces are processed into unit plates through an external factory after being divided, then the unit plates are transported to the site for splicing, and finally the wooden decorative surface is processed, and the design, the division, the processing and the construction are completed by a plurality of steps, thereby breaking through the fence in the prior art, having very good practical effect, and the finished ribbon-shaped ornament is flexible, elegant and rich in texture, and obtaining good evaluation of a design party and an owner party.
Claims (9)
1. A shaping and accurate positioning processing device for a multi-curve complex wood veneer unit plate is characterized in that the unit plate is made into a unit frame by two steel frames, a plurality of flat steels and a plurality of support rods, a steel plate covering surface covers the unit frame, the shaping and accurate positioning processing device structurally comprises a working platform (1) and a processing and checking platform (2) which are matched with each other, and the working platform (1) is placed close to the processing and checking platform (2);
the working platform (1) comprises an operation table top (11) and supporting legs (12), the four supporting legs (12) are respectively arranged at the bottom of the square operation table top (11), criss-cross square grids are arranged on the operation table top (11) of the working platform (1), scales are marked on the grids to serve as control coordinates, and the steel frame is machined on the working platform (1);
processing check-up platform (2) structural including construction platform (21), should construction platform (21) lay in the factory building subaerial, one side of construction platform (21) is equipped with vertical fixation's backer board (22), on construction platform (21) with one side that is relative by backer board (22) is equipped with support (23) of assembling in advance of a portable position construction platform (21) and backer board (22) are last to be equipped with the net respectively, are equipped with the scale on the net, the unit plate splice the equipment and accomplish on processing check-up platform (2).
2. The shaping and precise positioning device for multi-curve complex wood veneer unit block according to claim 1, it is characterized in that the unit plate needing to be processed structurally comprises a base layer framework, a steel framework (3) is longitudinally used as the main body of the base layer framework, the two sides of the steel frame (3) are parallel supporting legs (31), the middle part is provided with a bending section (32) which conforms to the angle of a curved surface, two ends of the bending section (32) are respectively fixed on the upper parts of the supporting legs (31), a flat steel (5) which is formed by transversely bending by using a numerical control bending machine is used, the two ends of the flat steel (5) are respectively fixed on the bending sections (32), the supporting legs (31) of the two opposite steel frames (3) are provided with supporting rods (6), the two steel frames (3), the flat steel (5) and the supporting rods (6) are made into unit frames, and the surfaces of the flat steel of the unit frames are covered with steel plate covering surfaces (7).
3. The method of forming and precision positioning apparatus of claim 1 for forming a multi-curved complex wood veneer block, comprising the steps of:
the method comprises the steps that firstly, pieces are divided on a ribbon-shaped three-dimensional model, longitudinal and transverse cutting is carried out along coordinate axes during piece division, longitudinal dividing lines are perpendicular to a horizontal plane and are parallel to each other, adjacent longitudinal dividing lines are the lengths of unit plates, transverse boundary lines are selected on internal corner lines or external corner lines of the ribbon shape, a coordinate system is kept unchanged during division, the manufacturing and installing precision of each unit plate after piece division is guaranteed, the ribbon three-dimensional model is divided into a plurality of unit plates, each unit plate is converted into an independent machining model, corresponding machining views are generated, a coordinate control table and a machining size control table of each unit plate are manufactured, and each numbered unit plate is provided with an independent machining model and machining view;
secondly, a shaping and accurate positioning processing device of the unit plate is arranged on the construction site as the construction site of the unit plate in an external processing factory, the shaping and accurate positioning processing device structurally comprises a working platform and a processing and checking platform which are matched with each other, the working platform is placed close to the processing and checking platform, raw materials required by processing the unit plate are prepared, and the raw materials comprise angle steel, flat steel, steel plate mask and supporting flat steel;
thirdly, machining a steel frame on the working platform, machining each section of angle steel according to a size control table of a unit plate to be machined, welding and fixing the angle steel according to the included angle of adjacent angle steel on the size control table, wherein two sides of the manufactured steel frame are parallel supporting legs, the middle part of the manufactured steel frame is provided with a bending section which is in accordance with the angle of a curved surface, two ends of the bending section are respectively fixed on the upper parts of the supporting legs, and an AB sleeve machining mode of the adjacent steel frames is adopted when the steel frame is machined on the working platform, namely, the two adjacent steel frames are machined simultaneously, and the two steel frames are ensured to be;
fourthly, processing flat steel by using a numerical control pipe bender, wherein each flat steel is provided with five coordinate control points which are formed according to a size control table to ensure the bending distance and the bending angle;
fifthly, assembling and processing unit plates on a processing and checking platform, fixing two steel frames of the unit plates to be processed on the processing and checking platform in parallel, controlling the positions of the steel frames to meet the requirements by using grids with scales on the processing and checking platform, fixedly keeping the steel frames to be vertical to the processing and checking platform by using a temporary fixing support outside each steel frame, placing a plurality of square steels on the processing and checking platform, placing one square steel at three positions in the middle of each flat steel, marking the height coordinate of a control point at the upper part of each square steel, connecting two ends of each flat steel with the steel frames, wherein the connecting part is the other two control point coordinates of each flat steel, arranging a plurality of square steels according to the number of the flat steels, and temporarily fixing the bottoms of the square steels on the processing and checking platform;
sixthly, fixing a plurality of flat steels on the steel frame according to the control points, ensuring the positions of three control points in the middle by using three square steels in the middle when each flat steel is fixed, enabling the positions of two control points at two ends to be positioned on the steel frame, forming a unit frame after the flat steels are fixed on the steel frame, and arranging a plurality of support rods according to the integral condition to ensure the stability;
seventhly, covering a steel plate mask on the manufactured unit frame, wherein the shape of the steel plate mask is determined according to the internal corner line or the external corner line where the flat steel is located, covering the steel plate mask on the surface where the flat steel of the unit frame is located, removing the corresponding square steel when covering each steel plate mask, removing the square steel one by one, and adding a support rod on a position with large span;
and eighthly, detecting the size and specification of the numbered unit plate, and determining that the unit plate is finished after the unit plate is qualified and correct.
4. The method for manufacturing multi-curved complex wood veneer unit panel according to claim 3, wherein the unit panel is converted into a separate processing model after the first step of splitting, the position and the size of the machining model are marked by the coordinates of four corners, the machining model is further divided into three parts and subjected to coordinate conversion, the further division is carried out on the three parts according to the longitudinal direction of the machining model parallel to a longitudinal division line, three intersection points are formed between the three dividing planes and each horizontal boundary line, and the boundary line has five intersection point coordinates for space position determination, the size control table displays the machining size and control points of each converted unit plate, the control point is marked by X, Y, Z three-dimensional coordinates, and the coordinates of the control point are converted from the space coordinates of the unit plate placed longitudinally into the coordinates of the processing platform of the unit plate placed transversely.
5. The method for manufacturing multi-curved complex wood veneer unit blocks according to claim 4, wherein in the second step, each unit block has a corresponding manufacturing dimension control table, which lists the dimension length and the bending included angle of the frame after longitudinal division, and five control point coordinates on each transverse boundary line, which are projected on the working platform and the manufacturing verification platform as the dimension control standard.
6. The method for manufacturing multi-curved complex wood veneer unit panel according to claim 3, wherein in the third step, the AB sleeve processing mode means that the steel frames contacting with each other between the adjacent unit panels are processed together, the steel frames are simultaneously processed to ensure the same size and angle, and a plurality of bolt holes for connecting and fixing the two are simultaneously processed on a machine tool.
7. The method for manufacturing multi-curved complex wood veneer unit panel according to claim 4, wherein in the fifth step, the temporary fixing bracket (4) is obliquely fixed between the steel frame (3) and the processing and checking platform (21), the upper end of the temporary fixing bracket (4) is fixed at the upper end of the steel frame (3), the lower end of the temporary fixing bracket (4) is fixed at the processing and checking platform (21), so that the steel frame (3) is vertically fixed at the processing and checking platform (21), the opposite steel frame (3) is also vertically fixed at the processing and checking platform (21) and is kept parallel, and the connection part of the steel frame (3) and the flat steel (5) after standing is two control points at two ends of the boundary line.
8. The method for manufacturing the multi-curved complex wood veneer unit block according to claim 4, wherein in the sixth step, the unit block after the support rod (6) is installed, the two sides of the steel frame (3) are parallel legs (31), a lower chord (33) is fixed between the two legs (31), the two ends of the lower chord (33) are vertically fixed at the middle positions of the two legs (31), the upper part of the steel frame (3) is provided with a bending section (32) conforming to the curved angle, the middle part of the bending section (32) is used as an upper chord (34), the two ends of the bending section (32) are respectively fixed at the upper parts of the legs (31), the bending angle of the node part of the bending section (32) corresponds to the angle of the external angle of the unit block line type, a plurality of vertical rods (35) are vertically arranged between the upper chord (34) and the lower chord (33), the vertical rod (35) is parallel to the supporting leg (31), an inclined rod (36) is further arranged at the position with large span between the upper chord (34) and the lower chord (33), and a supporting rod (6) is further arranged between the two opposite steel frames (3).
9. The method for manufacturing multi-curved complex wood veneer unit panel according to claim 4, wherein in the seventh step, before covering the steel plate covering, a thin flat steel line for supporting is additionally arranged between the adjacent internal corner line or external corner line if the span is large or the curved surface is gentle, and the thin flat steel line is thinner than the flat steel and is convenient for manual bending.
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