Tool for truss structure platform manufacturing and precision control and using method

Abstract

The invention discloses a tool for truss structure platform manufacturing and precision control and a using method, and belongs to the technical field of truss structure manufacturing. Comprising a basic plane frame and a movable supporting assembly. A plurality of auxiliary supports are arranged on the upper surface of the basic plane frame, and a plane formed by the upper surfaces of the auxiliary supports has set flatness; the basic plane frames are arranged at the two ends of the truss structure platform in the length direction. Auxiliary supports are mounted on the movable support assemblies arranged between the adjacent basic plane frames; a plurality of parallel suspension stand columns are vertically connected to the basic plane frame and the movable supporting assembly, and chord member fixing devices are arranged on the suspension stand columns. The upper surfaces of a plurality of auxiliary supports on the basic plane frame and the movable support assembly are taken as reference planes to ensure the accuracy of the overall boundary dimension of the truss structure platform; the chord member fixing device on each suspension stand column can be independently adjusted, so that the accuracy of the positioning size of each local part can be ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of truss structure manufacturing, and in particular to a tooling and a use method for manufacturing and precision controlling a truss structure platform. Background Art

[0002] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention, and should not necessarily be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art.

[0003] Large steel truss structures are widely used on the tops of buildings, such as the tops of stadiums, large railway stations, large parking lots, and gas station roof structures. Usually, the top of a building is a large single steel structure, which is mostly manufactured in the factory into small modules, which are then transported to the site and welded directly on the main structure of the building. Based on the development of the photovoltaic or wind power industry, the truss structure has its advantages of being lightweight and easy to install, and its application scenarios have gradually expanded to areas such as offshore platforms. Its overall size has been reduced, and mass production is required.

[0004] Compared with large single steel structures that can be directly welded onto the main structure of the building, the production process measures of the truss structure platform need to be optimized to improve manufacturing accuracy and meet the needs of mass production. Summary of the invention

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a tooling and use method for manufacturing and precision controlling a truss structure platform, by assembling the various components of the truss structure platform through special tooling, thereby improving the production efficiency and manufacturing precision of the truss structure platform.

[0006] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0007] In a first aspect, a tool for manufacturing and precision control of a truss structure platform includes a base plane frame and a movable support assembly;

[0008] The basic plane frame is arranged horizontally, a plurality of auxiliary supports are arranged on the upper surface of the basic plane frame, and a plane formed by the upper surfaces of the plurality of auxiliary supports has a set flatness;

[0009] The width of the basic plane frame is the same as that of the truss structure platform, and is arranged at both ends of the length direction of the truss structure platform;

[0010] The movable support assembly is provided with an auxiliary support, and the movable support assembly is arranged between adjacent basic plane frames;

[0011] A plurality of mutually parallel suspension columns are vertically connected to the basic plane frame and the movable support assembly, and the arrangement position of the suspension columns is close to the length direction plane truss and the width direction plane truss in the truss structure platform; the suspension columns are provided with chord fixing devices.

[0012] Optionally, the plurality of suspension columns are respectively arranged along the installation directions of the length direction plane trusses and the width direction plane trusses.

[0013] Optionally, the arrangement direction of the suspension columns on the outer frame of the basic plane frame is the same as the arrangement direction of the outwardly extending rafters of the truss structure platform.

[0014] Optionally, the structure of the chord fixing device includes a horizontally arranged chord supporting rod, and the chord supporting rod is perpendicular to the supported chord.

[0015] Optionally, the tooling for manufacturing and precision control of the truss structure platform includes a spherical positioning device, and the spherical positioning device is not higher than the upper surface of the auxiliary support.

[0016] Optionally, the sphere positioning device is connected to the base plane frame, and the structure of the sphere positioning device includes a sphere positioning groove plate.

[0017] Optionally, the tooling for manufacturing and precision controlling the truss structure platform includes a plurality of movable support assembly groups, the plurality of movable support assembly groups are arranged along the width direction of the truss structure platform, each movable support assembly group includes a plurality of movable support assemblies, and the movable support assemblies within the group are arranged along the length direction of the truss structure platform.

[0018] Optionally, a plane formed by an upper surface of the auxiliary support of the movable support assembly and an upper surface of the auxiliary support of the base plane frame has a set flatness.

[0019] Optionally, the tooling for manufacturing and precision control of the truss structure platform also includes a process pad for adjusting the flatness of the base plane frame.

[0020] In a second aspect, the method for using the above-mentioned truss structure platform manufacturing and precision control tooling includes:

[0021] S1. Set the basic plane frame at both ends of the truss structure platform in the length direction, and the position of the auxiliary support is the same as the position of the plane truss to be installed in the length direction;

[0022] S2. The movable support assembly is arranged between adjacent basic plane frames, and the auxiliary supports on the movable support assembly are arranged in the same manner as the auxiliary supports on the basic plane frame, and the suspension columns on the movable support assembly are arranged in the same manner as the suspension columns on the basic plane frame;

[0023] S3. Place the lower chords of the length-direction plane trusses and the width-direction plane trusses close to the upper surface of the basic plane frame and the auxiliary support of the movable support assembly, and adjust the vertical postures of the length-direction plane trusses and the width-direction plane trusses through hanging columns to connect and fix them into an integral truss structure platform.

[0024] Optionally, in S3, the chord is slid along the length direction of the chord supporting rod to adjust the assembly accuracy.

[0025] Optionally, in S3, the rafters extending outward from the truss structure platform are installed on hanging columns on the outer frame.

[0026] Optionally, the spherical assembly of the truss structure platform is placed in a spherical positioning device.

[0027] The beneficial effects of the present invention are as follows:

[0028] The tooling for manufacturing and precision control of the truss structure platform provided by the present disclosure adopts a bottom overall structural plane design, and takes the plane composed of the upper surfaces of the basic plane frame and multiple auxiliary supports on the movable support assembly as the reference plane to ensure the flatness of the lower chord surface of the truss structure, and can be constructed under the condition of local unevenness of the site, and can ensure the accuracy of the overall external dimensions during the welding process of the truss structure platform. The design of the positioning control points of each segmented monomer adopts a single-piece hanging (hanging column) positioning method, and the hanging column support (hanging column) can ensure that the single-piece module can be in a state perpendicular to the reference ground after hoisting, and ensure the verticality between the modules during welding; the assembly state of the chord rod fixing device on each hanging column can be adjusted separately, which can ensure the accuracy of the positioning dimensions of each part during the welding process of the truss structure platform. The design of the movable support assembly enables the truss structure platform to be welded into a larger module and then closed as a whole, or it can be directly welded and formed in a one-time welding method on the welding and closing tooling, which has great process flexibility and can be applied to truss structure platforms of different sizes. In addition, by adding process pads of different thicknesses at the hanging points to adjust the pipe diameter difference, the center layers of profiles of different pipe diameters can be located at the same height level, thereby achieving the purpose of the tooling being suitable for the assembly and welding of steel trusses with various pipe diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0030] In order to show the positions of various parts, the distances or sizes between them are exaggerated in the figure, and the schematic diagram is for illustration only.

[0031] Figure 1It is a structural schematic diagram of the tooling for manufacturing and precision control of the truss structure platform in Example 1.

[0032] Figure 2 It is a schematic diagram of the partial structure of the tooling for manufacturing and precision control of the truss structure platform in Example 1.

[0033] Figure 3 It is another partial structural schematic diagram of the tooling for manufacturing and precision control of the truss structure platform in Example 1.

[0034] Figure 4 It is a schematic diagram of the installation structure of the truss structure platform 10 in Example 1.

[0035] Figure 5 It is a schematic diagram of the sub-unit connection method in Example 1.

[0036] Among them, 1. Basic plane frame; 2. Auxiliary support; 3. Suspension column; 31. Chord support rod; 4. Outer frame; 5. Movable support assembly; 6. Ball positioning device; 61. Ball positioning groove; 7. Inner frame; 10. Truss structure platform; 11. Length direction plane truss; 12. Width direction plane truss; 13. Rafter. DETAILED DESCRIPTION

[0037] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0038] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0039] A tool for manufacturing and precision control of a truss structure platform, such as Figure 1 As shown in the dark frame and its attached structure, it includes a basic plane frame 1 and a movable support assembly 5;

[0040] The base plane frame 1 is arranged horizontally, and the upper surface of the base plane frame 1 has a flatness of ±5 mm. Figure 2As shown, the upper surface of the basic plane frame 1 is provided with auxiliary supports 2, and the plane formed by the upper surfaces of the plurality of the auxiliary supports has a flatness of ±5 mm, that is, the flatness of the upper surface of the basic plane frame 1 is first ensured, and then the auxiliary supports 2 are provided, so that the plane formed by the upper surfaces of the auxiliary supports 2 has a set flatness;

[0041] The width of the basic plane frame 1 is similar to the width of the truss structure platform 10 (such as Figure 1 The two plane trusses 10 and 11 are the same width and are arranged at both ends of the length direction of the truss structure platform 10. The basic plane frame 1 includes an outer frame 4 and an inner frame 7. The outer frame 4 is located below the outermost plane truss 12 in the width direction and below the rafters 13. The inner frame 7 is located below the plane truss 11 in the length direction, and is used to support the basic structure of the truss structure platform 10.

[0042] The movable support assembly 5 includes a first short rod and a second short rod connected by a longitudinal rod, the first short rod and the second short rod are parallel to each other, and the distance between the first short rod and the second short rod is equal to the distance between the outer frame 4 of the basic plane frame 1 and the outer frame of the inner frame 7, and the movable support assembly 5 is arranged between adjacent basic plane frames 1;

[0043] A plurality of mutually parallel suspension columns 3 are vertically connected to the basic plane frame 1 and the movable support assembly 5. The suspension columns 3 are arranged close to the length direction plane trusses 11 and the width direction plane trusses 12 in the truss structure platform 10. A chord fixing device is provided on the suspension columns 3.

[0044] A plurality of suspension columns 3 are respectively arranged along the installation direction of the plane trusses 11 in the length direction and the plane trusses 12 in the width direction, and are used for positioning and installing the plane trusses 11 in the length direction and the plane trusses 12 in the width direction.

[0045] The arrangement direction of the suspension columns 3 on the outer frame 4 is the same as the arrangement direction of the outwardly projecting rafters 13 of the truss structure platform 10 , and is used to install the rafters 13 .

[0046] like Figure 2 As shown, the structure of the chord fixing device on the suspension column 3 includes a horizontally arranged chord supporting rod 31, which is installed on the suspension column 3 and has a diagonal brace arranged underneath. The chord supporting rod 31 is perpendicular to the supported upper chord, so that the upper chord can move on the chord supporting rod 31 to adjust the suspension posture of the plane truss.

[0047] The basic plane frame 1 is provided with a ball positioning device 6 , which is not higher than the upper surface of the auxiliary support 2 .

[0048] like Figure 3As shown, the ball positioning device 6 is arranged on the basic plane frame 1, and its structure includes a ball positioning groove 61, which is used to position the ball assembly on the truss structure platform 10. The ball assembly refers to the position where multiple chords and inclined pull rods on the truss structure platform 10 are centrally fixed for connection with the supporting legs below the truss structure platform.

[0049] like Figure 1 As shown, the tooling for manufacturing and precision control of the truss structure platform includes a plurality of movable support assembly groups, and the plurality of movable support assembly groups are arranged along the width direction of the truss structure platform 10. Each movable support assembly group includes a plurality of movable support assemblies 5, and the movable support assemblies 5 in the group are arranged along the length direction of the truss structure platform 10.

[0050] The plane formed by the upper surface of the auxiliary support 2 of the movable support assembly 5 and the upper surface of the auxiliary support 2 of the basic plane frame 1 has a flatness of ±5 mm to form a flatness reference for the entire truss structure platform.

[0051] The tooling for manufacturing and precision control of the truss structure platform also includes a process pad, which is used to adjust the height of the basic plane frame 1, the movable support assembly 5 and the spherical positioning device relative to the bottom surface when the ground is uneven, so as to ensure the overall flatness of the tooling.

[0052] When the truss structure platform manufacturing and precision control tooling of the present embodiment is used to install the truss structure platform, it is necessary to first split the large steel truss into larger single-piece modules according to the structural characteristics of the large steel truss according to the process splitting requirements; the module splitting principle is: after the module is manufactured, it is easy to transport, easy to subsequently hoist and assemble, and to minimize the workload of the subsequent assembling process within the scope permitted by conditions, as shown in the attached figure. Figure 4 As shown, the plane trusses 11 in the length direction and the plane trusses 12 in the width direction are both plane trusses, and the rafters 13 are composed of two rods, and neither has a three-dimensional structure, which is convenient for transportation and assembly. The specific installation method is as follows.

[0053] S1. Use a total station to measure the height difference of the ground in the area where the tooling needs to be arranged and make a record. According to the drawings, process the components required for the basic plane frame 1 and lay them in the process planning area. Refer to the above original measurement records, use a total station to check the flatness of the reference plane, add pads and other measures to raise the lower ground area to ensure flatness, ensure that the upper plane of the basic plane frame 1 is located at the same height plane, spot weld and fix the connection nodes of each basic steel section to obtain the frame structure of the basic plane frame 1; according to the overall layout drawing of the tooling, assemble and weld the suspended suspension columns 3 at each control point, and ensure that the suspension columns 3 are aligned with the basic plane frame during welding. The upper surface of the frame 1 is vertical, and the nodes of the hanging columns 3 are arranged to ensure that they are executed according to the requirements of the drawings. The position requirements of the arrangement of the hanging columns 3 do not affect the welding positions between the nodes, and the steel truss platform can be lifted normally after the welding is completed in the later stage; in order to ensure the weldability of the bottom position of the truss structure platform 10, the auxiliary support 2 is connected to the basic plane frame 1, so that the height of the upper surface of the auxiliary support 2 from the bottom surface is 500mm. The height of 500mm can ensure the welding operability of the welds at all bottom positions of the steel truss. After measuring the accuracy of its relative position, it is spot welded and fixed. The spherical positioning device 6 is used to subsequently check the accuracy of the overall external dimensions of the truss after welding; such as Figure 1 As shown, the basic plane frame 1 is set at both ends of the truss structure platform in the length direction, and the plane formed by the upper surfaces of each auxiliary support 2 is calibrated.

[0054] S2, such as Figure 1 As shown, the movable support assembly 5 is arranged between adjacent basic plane frames 1, and the first short rod is collinear with the outer frame 4, the second short rod is collinear with the inner frame, and the longitudinal rod is in the same position as the width-direction plane truss 12, that is, the movable support assembly 5 can provide the same positioning function as the basic plane frame 1, and because it is a split structure, the number and spacing of the movable support assemblies 5 can be adjusted according to the truss structure platforms 10 of different sizes, thereby improving the applicability of the tooling.

[0055] S3, such as Figure 4 As shown, the lower chord auxiliary support 2 of the length direction plane truss 11 and the width direction plane truss 12 is placed on the upper surface, and the length direction plane truss 11 and the width direction plane truss 12 are respectively suspended on the suspension column 3. During the process, the height of the chord fixing device and the position of the chord supporting rod 31 supporting the plane truss are adjusted to adjust the position accuracy and verticality of the length direction plane truss 11 and the width direction plane truss 12, and then the rafters 13 extending outward from the truss structure platform are installed on the suspension column 3 on the outer frame 4, and are connected and fixed to form an integral truss structure platform 10.

[0056] When the truss structure platform 10 is large in size, it can be Figure 5As shown, the truss structure platform 10 is divided into three units and manufactured separately. The plane trusses 11 in the length direction, the plane trusses 12 in the width direction, the rafters 13 and other oblique chords in each unit are welded separately, and then the three units are closed as a whole, and the connecting welds of each part are formally welded. If there is a requirement for anti-corrosion, the weld positions at the connection positions are polished and anti-corrosion treated; if there is a requirement for non-destructive testing of welds, non-destructive testing is carried out according to relevant requirements before anti-corrosion, and anti-corrosion treatment is carried out after passing the requirements.

[0057] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A tool for manufacturing and precision control of a truss structure platform, characterized in that: Includes a basic plane frame and a movable support assembly; The basic plane frame is arranged horizontally, a plurality of auxiliary supports are arranged on the upper surface of the basic plane frame, and a plane formed by the upper surfaces of the plurality of auxiliary supports has a set flatness; The width of the basic plane frame is the same as that of the truss structure platform, and is arranged at both ends of the length direction of the truss structure platform; The movable support assembly is provided with an auxiliary support, and the movable support assembly is arranged between adjacent basic plane frames; A plurality of mutually parallel suspension columns are vertically connected to the basic plane frame and the movable support assembly, and the arrangement position of the suspension columns is close to the length direction plane truss and the width direction plane truss in the truss structure platform; the suspension columns are provided with chord fixing devices.

2. The tooling for manufacturing and precision control of the truss structure platform according to claim 1 is characterized in that: A plurality of suspension columns are respectively arranged along the installation directions of the plane trusses in the length direction and the plane trusses in the width direction.

3. The tooling for manufacturing and precision control of a truss structure platform according to claim 1 is characterized in that: The arrangement direction of the hanging columns on the outer frame of the basic plane frame is the same as the arrangement direction of the outwardly extending rafters of the truss structure platform.

4. The tooling for manufacturing and precision control of a truss structure platform according to claim 1 is characterized in that: The structure of the chord rod fixing device comprises a horizontally arranged chord rod supporting rod, and the chord rod supporting rod is perpendicular to the supported chord rod.

5. The tooling for manufacturing and precision control of a truss structure platform according to claim 1 is characterized in that: The tooling for manufacturing and precision control of the truss structure platform includes a spherical positioning device, and the spherical positioning device is not higher than the upper surface of the auxiliary support; Optionally, the sphere positioning device is connected to the base plane frame, and the structure of the sphere positioning device includes a sphere positioning groove plate.

6. The tooling for manufacturing and precision control of a truss structure platform according to claim 1 is characterized in that: The tooling for manufacturing and precision controlling the truss structure platform includes a plurality of movable support assembly groups, which are arranged along the width direction of the truss structure platform. Each movable support assembly group includes a plurality of movable support assemblies, and the movable support assemblies in the group are arranged along the length direction of the truss structure platform.

7. The tooling for manufacturing and precision control of a truss structure platform according to claim 6 is characterized in that: The plane formed by the upper surface of the auxiliary support of the movable support assembly and the upper surface of the auxiliary support of the basic plane frame has a set flatness.

8. A method for using the tooling for manufacturing and precision control of a truss structure platform according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1. Set the basic plane frame at both ends of the truss structure platform in the length direction, and the position of the auxiliary support is the same as the position of the plane truss to be installed in the length direction; S2. The movable support assembly is arranged between adjacent basic plane frames, and the auxiliary supports on the movable support assembly are arranged in the same manner as the auxiliary supports on the basic plane frame, and the suspension columns on the movable support assembly are arranged in the same manner as the suspension columns on the basic plane frame; S3. Place the lower chords of the length-direction plane trusses and the width-direction plane trusses close to the upper surface of the basic plane frame and the auxiliary support of the movable support assembly, and adjust the vertical postures of the length-direction plane trusses and the width-direction plane trusses through hanging columns to connect and fix them into an integral truss structure platform.

9. The method for using the tooling for manufacturing and precision control of a truss structure platform according to claim 8, characterized in that: In S3, the chord is slid along the length direction of the chord supporting rod to adjust the assembly accuracy.

10. The method for using the tooling for manufacturing and precision control of a truss structure platform according to claim 8, characterized in that: In S3, the rafters extending outward from the truss structure platform are installed on the hanging columns on the outer frame.

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