Adjustable net rack welding support

Abstract

The invention discloses an adjustable net rack welding support. The adjustable net rack welding support comprises a base, a welding ball supporting structure and a plurality of rod piece supporting structures. The welding ball supporting structure is fixedly arranged in the center of the base and used for completing supporting and limiting of a welding ball, and the welding ball supporting structure is provided with a telescopic structure; the rod piece supporting structures are distributed on the periphery of the welding ball supporting structure, fixed to the base and used for completing supporting and limiting of rod pieces to be fixed, and each rod piece supporting structure is provided with a telescopic structure. When a net rack is welded, positioning of all net rack welding supports is completed based on a net rack design drawing, welding balls are placed on all the net rack welding supports, to-be-fixed rod pieces are erected on all the net rack welding supports based on the net rack design drawing, and the heights of a welding ball supporting structure and a rod piece supporting structure are designed and adjusted based on the positions of welding spots; therefore, relative position adjustment of the welding balls and the to-be-fixed rod pieces is achieved, and after adjustment is completed, welding and fixing of the to-be-fixed rod pieces and the corresponding welding balls are completed.

Description

Technical Field

[0001] The present application belongs to the field of grid construction auxiliary devices, and in particular relates to an adjustable grid welding support. Background Art

[0002] Space truss structures, with their advantages of simple load-bearing, high rigidity, light weight, steel conservation, and overall stability, are increasingly being used in various industrial and civil buildings, particularly large-span structures such as hangars, gymnasiums, and exhibition halls. During the construction of space truss steel structures, overall lifting is a common technique.

[0003] Grid structures often utilize multiple lower chord supports, with spherical hinge supports. After being welded and assembled on-site, the structure is hoisted as a whole. Temporary supports for on-site grid assembly and welding often consist of steel plates placed on top of brickwork. The welding process for the steel grid structure typically begins with locating the support nodes. Once located, brickwork is constructed, and steel plates are laid atop the brickwork. Welding balls are then placed on the plates, and the steel pipes are adjusted in length according to the elevation before welding to the welding balls.

[0004] The current approach has the following shortcomings: (1) The welding positioning accuracy is low, and the welding process is greatly affected by human and environmental factors, making it easy to move and cause deviation. (2) There is no rod support device, and manual assistance is often required for welding, which can easily cause the rod to become unstable and affect the welding quality. (3) Brickwork cannot be disassembled and recycled, and is not easy to carry, resulting in high material and labor costs.

[0005] Through literature search, there are currently no relevant solutions and equipment. For steel structure grid welding projects, a set of lightweight, detachable, and high-precision construction equipment and technical processes are needed to meet the construction requirements of grid welding. Summary of the Invention

[0006] The purpose of this application is: in order to overcome the problems of the existing technology, an adjustable grid welding support is disclosed. Through the structural design of this grid welding support, it can not only play the role of adjusting the spatial position of the welding ball and the rod to be fixed during the grid welding process, but also can be recycled repeatedly to avoid material waste.

[0007] The purpose of this application is achieved through the following technical solutions: An adjustable grid welding support, comprising: a base, a welding ball support structure and a plurality of rod support structures; The welding ball support structure is fixedly arranged at the center of the base, and is used to complete the support and positioning of the welding ball. The welding ball support structure has a telescopic structure, which can complete the vertical setting adjustment of the welding ball. Each rod support structure is distributed around the welding ball support structure and fixed on the base, and is used to complete the support and positioning of the rod to be fixed. The rod support structure has a telescopic structure, which can complete the vertical setting adjustment of the rod to be fixed; When performing grid welding, the positioning of each grid welding support is completed based on the grid design drawing, a welding ball is placed on each grid welding support, and the rods to be fixed are set up on each grid welding support based on the grid design drawing. Based on the welding point position design, the height of the welding ball support structure and the rod support structure are adjusted to achieve the relative position adjustment of the welding ball and each rod to be fixed. After the adjustment is completed, the welding and fixation of each rod to be fixed and the corresponding welding ball are completed.

[0008] According to a preferred embodiment, the welding ball support structure includes: a support column, a telescopic rod and a bracket. The support column is fixed on the base, and the telescopic rod is inserted into the top of the support column and connected to the support column via a threaded structure. By twisting the telescopic rod, the telescopic rod can be raised or lowered relative to the support column. The bracket is arranged at the top end of the telescopic rod, and the telescopic rod is movably connected to the bracket. The telescopic rod can rotate freely relative to the bracket, and the welding ball is fixed on the bracket.

[0009] According to a preferred embodiment, the surface of the bracket is provided with four vertically arranged limit plates, each limit plate forms a cross-shaped structure, and the top of each limit plate is an inclined structure, thereby forming a cross-shaped accommodation structure that is higher outside and lower inside.

[0010] According to a preferred embodiment, a sawtooth structure is provided on the top of the limiting plate.

[0011] According to a preferred embodiment, the rod support structure includes: two lifting rods and a rod support block provided at the top ends of the two lifting rods, and the rod to be fixed is fixed to the surface of the rod support block via a clamping structure.

[0012] According to a preferred embodiment, an arc-shaped groove is provided on the surface of the rod support block, and the rod to be fixed is fixed in the arc-shaped groove via a clamping structure.

[0013] According to a preferred embodiment, the clamping structure is an arc-shaped clamp, and both ends of the clamp are fixed to the rod support block by bolts.

[0014] According to a preferred embodiment, the clamping structure includes: two vertical rods, a horizontal rod, a first clamping member and a second clamping member. Two vertical poles are vertically arranged on both sides of the arc-shaped groove, and both ends of the cross bar are movably connected to the vertical poles and can be adjusted in position in the vertical direction; The first clamping member is fixed to the bottom side of the crossbar, and the second clamping member is fixed to the top of the arc-shaped groove. The two clamping members are arranged opposite to each other, and the rod to be fixed is clamped between the first clamping member and the second clamping member.

[0015] According to a preferred embodiment, the first clamping member and the second clamping member are arc-shaped structures, and the first clamping member is connected to the cross bar via a fine-tuning bolt, and the second clamping member is connected to the rod support block via a fine-tuning bolt.

[0016] According to a preferred embodiment, the surfaces of the first clamping member and the second clamping member are further provided with anti-slip pads.

[0017] The aforementioned main solution of this application and its further options can be freely combined to form multiple solutions, all of which can be adopted and protected by this application. After understanding the solution of this application, those skilled in the art will understand that there are many combinations based on existing technology and common knowledge, all of which are technical solutions to be protected by this application, and these are not exhaustive here.

[0018] Beneficial effects of this application: The structural design of the grid welding support can not only adjust the spatial position of the welding balls and the rods to be fixed during the grid welding process, but also can be recycled repeatedly, avoiding material waste and solving the problems of low grid welding precision and unstable operation; the cross-shaped accommodating structure of the welding ball holder in the grid welding support can be suitable for most welding balls of different sizes; the rod support structure in the grid welding support fixes the rods through a variable radius arc clamping device, avoiding human influence, making the welding process smooth and improving product quality; the portable and assembled structural characteristics of the grid welding support device are convenient for transportation, production and installation, and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the grid welding support of this application; Figure 2 This is a schematic diagram of the top view of the welded support of the grid in this application; Figure 3 This is a schematic cross-sectional view of the welded support of the grid structure of the present application; Figure 4 This is a schematic diagram of a rod support structure of the grid welding support of this application; Figure 5 This is a schematic diagram of a rod support structure of the grid welding support of this application; Figure 6 This is a structural diagram of the lifting rod in the grid welding support of the present application; Among them, 101-base, 102-support column, 103-telescopic rod, 104-bracket, 105-limiting plate, 106-welding ball, 107-lifting rod, 108-rod support block, 109-arc groove, 201-socket joint, 202-first lifting section, 203-second lifting section, 301-vertical pole, 302-cross bar, 303-first clamping member, 304-second clamping member, 400-clamp, 500-rod to be fixed. DETAILED DESCRIPTION

[0020] The following describes the embodiments of the present application through specific examples. Those skilled in the art can easily understand the other advantages and effects of the present application from the content disclosed in this specification. The present application can also be implemented or applied through other different specific embodiments. The details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments can be combined with each other unless they conflict.

[0021] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0022] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of this application is typically placed when in use. These terms are intended only to facilitate the description of this application and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0024] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0025] In addition, the present application would like to point out that, in the present application, unless the specific structures, connection relationships, positional relationships, power source relationships, etc. are specifically written out, the structures, connection relationships, positional relationships, power source relationships, etc. involved in the present application are all known to those skilled in the art based on the existing technology without creative work.

[0026] Example 1 refer to Figures 1 to 6 As shown, the present application discloses an adjustable grid welding support, which includes: a base 101, a welding ball support structure and a plurality of rod support structures.

[0027] The welding ball support structure is fixedly arranged at the center of the base 101 for completing the support and positioning of the welding ball 106 , and the welding ball support structure has a telescopic structure, which can complete the vertical setting adjustment of the welding ball 106 .

[0028] Each rod support structure is distributed around the welding ball support structure and fixed on the base 101, and is used to complete the support and positioning of the rod 500 to be fixed. The rod support structure has a telescopic structure, which can complete the vertical setting adjustment of the rod 500 to be fixed.

[0029] Preferably, two rod support structures, three rod support structures, or four rod support structures can be provided on the grid welding support to meet the welding requirements of each node position of the grid.

[0030] When performing grid welding, the positioning of each grid welding support is completed based on the grid design drawing, and a welding ball 106 is placed on each grid welding support. Based on the grid design drawing, the rods 500 to be fixed are set up on each grid welding support. Based on the welding point position design, the height of the welding ball support structure and the rod support structure are adjusted to achieve the relative position adjustment of the welding ball 106 and each rod 500 to be fixed. After the adjustment is completed, the welding and fixation of each rod 500 to be fixed and the corresponding welding ball 106 are completed.

[0031] Preferably, the welding ball support structure includes: a support column 102, a telescopic rod 103 and a bracket 104, the support column 102 is fixed on the base 101, the telescopic rod 103 is inserted into the top of the support column 102, and is interconnected with the support column 102 through a threaded structure, and the telescopic rod 103 can be raised or lowered relative to the support column 102 by twisting the telescopic rod 103; the bracket 104 is arranged at the top of the telescopic rod 103, and the telescopic rod 103 is movably connected to the bracket 104, the telescopic rod 103 can rotate freely relative to the bracket 104, and the welding ball 106 is fixed on the bracket 104.

[0032] Preferably, the bracket 104 is provided with four vertically arranged limiting plates 105 on its surface. Each limiting plate 105 forms a cross-shaped structure, and the top of each limiting plate 105 is inclined, thereby forming a cross-shaped accommodation structure with a higher outer side and a lower inner side. This cross-shaped accommodation structure can be used to accommodate welding balls of various sizes and structures, thereby expanding the applicability of the device. The structural arrangement of the cross-shaped accommodation structure makes the accommodation structure small and regular in size, thereby reserving sufficient operating space for welding the rod 500 to be fixed later.

[0033] Furthermore, a sawtooth structure is provided on the top of the limiting plate 105. The sawtooth structure increases the friction between the limiting plate 105 and the welding ball 106, which helps to stabilize the position of the welding ball.

[0034] Preferably, the rod support structure includes: two lifting rods 107 and a rod support block 108 provided at the top ends of the two lifting rods 107 , and the rod 500 to be fixed is fixed to the surface of the rod support block 108 via a clamping structure.

[0035] Furthermore, an arc-shaped groove 109 is provided on the surface of the rod support block 108 , and the rod 500 to be fixed is fixed in the arc-shaped groove 109 via a clamping structure.

[0036] For example, the clamping structure can be an arc-shaped clamp 400, and both ends of the clamp 400 are bolted to the rod support block 108. When the size of the rod 500 to be fixed matches the arc-shaped groove 109, the clamp 400 can quickly complete the structural fixation of the rod 500 to be fixed.

[0037] Preferably, the clamping structure can also be composed of the following structure, including: two vertical poles 301, a horizontal pole 302, a first clamping member 303 and a second clamping member 304, the two vertical poles 301 are vertically arranged on both sides of the arc groove 109, and the two ends of the horizontal pole 302 are movably connected to the vertical poles 301, and can be adjusted in position vertically; the first clamping member 303 is fixed to the bottom side of the horizontal pole 302, and the second clamping member 304 is fixed to the top of the arc groove 109. The two clamping members are arranged opposite to each other, and the rod 500 to be fixed is clamped between the first clamping member 303 and the second clamping member 304.

[0038] Furthermore, the first clamping member 303 and the second clamping member 304 are arc-shaped structures, and the first clamping member 303 is connected to the crossbar 302 via a fine-tuning bolt, and the second clamping member 304 is connected to the rod support block 108 via a fine-tuning bolt. Through the structural design of this clamping structure, the height of the rod 500 to be fixed can be precisely adjusted, and at the same time, the clamping and fixing of vertical poles 500 to be fixed of various sizes can be completed, thereby expanding the application scenarios of this device.

[0039] Furthermore, the first clamping member 303 and the second clamping member 304 are provided with anti-skid pads on their surfaces. The anti-skid structure on the clamping member surface further improves the clamping stability and provides the basic conditions for subsequent high-quality welding.

[0040] Preferably, the lifting rod 107 includes a first lifting section 202 and a second lifting section 203, the first lifting section 202 is connected to the base 101 via a socket joint 201, the second lifting section 203 is sleeved on the top of the first lifting section 202, the second lifting section 203 can be lifted and lowered relative to the first lifting section 202, and a limit buckle is provided between the two lifting sections.

[0041] The transportation and installation process of the device of the present application includes: the device of the present application can be disassembled into multiple components and transported to the pre-welding location by manpower or elevator. The base 101 is first positioned. After the positioned base 101 is placed, the support column 102 is installed. According to the height of the welding ball, the installation of the telescopic rod 103 and the bracket 104 is completed in sequence. After the welding ball support structure is installed, the rod support structure is installed. The lifting rod 107 and the rod support block 108 are connected and fixed to the cylindrical socket joint 201 in sequence. The height of the lifting rod 107 is roughly adjusted first, and then the clamping structure is installed. After the rod to be welded is placed, precise adjustment is performed to achieve clamping of the fixed rod 500.

[0042] The welding installation process steps include: Cutting: According to the design drawings and BIM model, the fixing rods 500 and the welding balls 106 are processed and manufactured in the factory. After being transported to the site, the appearance and geometric dimensions of the fixing rods 500 and the welding balls 106 are inspected and placed in the predetermined positions according to the numbers.

[0043] Set-out: Based on the measurement control reference points, an independent rectangular plane control grid is set up as the basis for construction layout. The plane control grid determines the center position of each grid welded support and marks it. Grid lines are popped up on the foundation surface according to the grid size, which serves as a reference for the installation of the 500 rods to be fixed. Complex curved grids require the use of BIM models for layout.

[0044] Install the welding ball support structure: According to the support positioning center point, place the positioned base 101, then install the cylindrical support column 102, and complete the installation of the telescopic rod 103 and the bracket 104 in sequence. According to the height of the set-out welding ball 106, adjust the height of the bracket 104 up and down through the telescopic rod 103.

[0045] Place the welded ball: Place the inspected welded ball 106 into the mounting joint according to the specifications and numbers. At the same time, adjust the force direction and position of the ball. Generally, place the circular weld seam on the horizontal centerline of the ball in the equator direction, with the ribbed side in the upper half of the lower chord ball. Install the rod support structure: sequentially connect and fix the lifting rod 107 and the rod support block 108 to the cylindrical socket joint 201, and first roughly adjust the height of the rod lifting rod using the lifting rod 107. Then install the clamping structure.

[0046] Rod placement: Arrange the prepared rods 500 to be fixed and the steel pipes according to the specified specifications. Before placing the rods 500, check the specifications and dimensions of the rods 500, as well as the grooves and weld gaps. Place the rods 500 between the two balls. Adjust the upper and lower clamping structures of the rods 500 according to the set-out height to secure them. Finally, perform spot welding to secure them.

[0047] Welding: For flat grid welding, the arc should be struck from 20 to 30 mm to the left of the lower center line of the 500-mm rod to be fixed, and welded to the right, gradually completing the overhead welding, main welding, climbing welding, flat welding and other welding positions. The ball tube welding should be carried out using an oblique sawtooth welding technique to prevent biting. After the welding rod reaches the center line of the round tube, continue to weld forward 20 to 30 mm and close the arc. After the semicircle is welded, start the arc again from 20 to 30 mm to the right of the lower center line of the steel pipe, and weld to the left. The same process as above, continue to weld forward after reaching the top center line, fill the arc pit, and ensure a smooth weld overlap.

[0048] The structural design of the grid welding support can not only adjust the spatial position of the welding balls and the rods to be fixed during the grid welding process, but also can be recycled repeatedly, avoiding material waste and solving the problems of low grid welding precision and unstable operation; the cross-shaped accommodating structure of the welding ball holder in the grid welding support can be suitable for most welding balls of different sizes; the rod support structure in the grid welding support fixes the rods through a variable radius arc clamping device, avoiding human influence, making the welding process smooth and improving product quality; the portable and assembled structural characteristics of the grid welding support device are convenient for transportation, production and installation, and easy to operate.

[0049] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. An adjustable grid welding support, characterized in that: The adjustable grid welding support comprises: a base (101), a welding ball support structure and a plurality of rod support structures; The welding ball support structure is fixedly arranged at the center of the base (101) and is used to complete the support and positioning of the welding ball (106), and the welding ball support structure has a telescopic structure and can complete the vertical setting adjustment of the welding ball (106); Each rod support structure is distributed around the welding ball support structure and fixed on the base (101), and is used to complete the support and positioning of the rod (500) to be fixed, and the rod support structure has a telescopic structure, which can complete the vertical setting adjustment of the rod (500) to be fixed; When performing grid welding, each grid welding support is positioned based on the grid design drawing, a welding ball (106) is placed on each grid welding support, and a rod (500) to be fixed is set up on each grid welding support based on the grid design drawing. Based on the welding point position design, the height of the welding ball support structure and the rod support structure is adjusted to achieve relative position adjustment between the welding ball (106) and each rod (500) to be fixed. After the adjustment is completed, the welding and fixing of each rod (500) to be fixed and the corresponding welding ball (106) are completed.

2. The adjustable grid welding support according to claim 1, characterized in that: The welding ball support structure comprises: a support column (102), a telescopic rod (103) and a bracket (104). The support column (102) is fixed on the base (101), and the telescopic rod (103) is inserted into the top of the support column (102) and is connected to the support column (102) via a threaded structure. By twisting the telescopic rod (103), the telescopic rod (103) can be raised or lowered relative to the support column (102); The bracket (104) is arranged at the top end of the telescopic rod (103), and the telescopic rod (103) is movably connected to the bracket (104). The telescopic rod (103) can rotate freely relative to the bracket (104), and the welding ball (106) is fixed on the bracket (104).

3. The adjustable grid welding support according to claim 2, characterized in that: The surface of the support (104) is provided with four vertically arranged limit plates (105), each limit plate (105) forming a cross-shaped structure. Furthermore, the top of each limiting plate (105) is an inclined structure, thereby forming a cross-shaped accommodation structure that is higher on the outside and lower on the inside.

4. The adjustable grid welding support according to claim 3, characterized in that: A sawtooth-shaped structure is provided on the top of the limiting plate (105).

5. The adjustable grid welding support according to claim 1, characterized in that: The rod support structure comprises: two lifting rods (107) and a rod support block (108) arranged at the top ends of the two lifting rods (107); the rod (500) to be fixed is fixed to the surface of the rod support block (108) via a clamping structure.

6. The adjustable grid welding support according to claim 5, characterized in that: The surface of the rod support block (108) is provided with an arc-shaped groove (109), and the rod (500) to be fixed is fixed in the arc-shaped groove (109) via a clamping structure.

7. The adjustable grid welding support according to claim 6, characterized in that: The clamping structure is an arc-shaped clamp (400), and both ends of the clamp (400) are fixed to the rod support block (108) via bolts.

8. The adjustable grid welding support according to claim 6, characterized in that: The clamping structure comprises: two vertical rods (301), a horizontal rod (302), a first clamping member (303) and a second clamping member (304). Two vertical rods (301) are vertically arranged on both sides of the arc-shaped groove (109), and both ends of the cross rod (302) are movably connected to the vertical rods (301) and can be adjusted in position in the vertical direction; The first clamping member (303) is fixed to the bottom side of the crossbar (302), and the second clamping member (304) is fixed to the top of the arc-shaped groove (109). The two clamping members are arranged opposite to each other, and the rod member (500) to be fixed is clamped between the first clamping member (303) and the second clamping member (304).

9. The adjustable grid welding support according to claim 8, characterized in that: The first clamping member (303) and the second clamping member (304) are arc-shaped structures, and the first clamping member (303) is connected to the crossbar (302) via a fine-tuning bolt, and the second clamping member (304) is connected to the rod support block (108) via a fine-tuning bolt.

10. The adjustable grid welding support according to claim 8, characterized in that: Anti-slip pads are also provided on the surfaces of the first clamping member (303) and the second clamping member (304).

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