A latticed column welding device for building construction
By designing an automated lattice column welding device, the automated positioning and welding of steel plates and angle steel were achieved, solving the problems of cumbersome and inaccurate traditional manual welding operations, and improving construction efficiency and component strength.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NINGBO HUAYU CONSTR CO LTD
- Filing Date
- 2025-11-05
- Publication Date
- 2026-06-19
AI Technical Summary
Traditional manual welding of lattice columns is cumbersome, requires high labor intensity, has poor welding precision, and affects the strength of the components.
Design an automated welding device that includes a base, a welding device, a pressure application mechanism, a moving mechanism, and a welding mechanism. The pressure application mechanism positions and welds steel plates and angle steel, the moving mechanism enables welding at different positions, and the welding mechanism automates the welding process.
It improves welding precision, reduces the tediousness of manual operation, and ensures the stability of welding and the strength of components.
Smart Images

Figure CN121315532B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to welding technology, and more particularly to a welding apparatus for lattice columns used in building construction. Background Technology
[0002] Lattice columns are a type of building with strong bending resistance. They are characterized by arranging the material area to the farthest point from the axis of inertia, which can enhance the bending resistance of the members under the same axial resistance and save materials.
[0003] Lattice columns are used as compression-bending members, often in factory building frame columns and independent columns. Their cross-sections are typically made of angle steel or steel plates, designed with biaxial or uniaxial symmetry. Lattice system components consist of members and lacing members; the members primarily bear axial forces, while the lacing members primarily resist lateral forces.
[0004] When welding precast lattice columns, the traditional method is to use manual labor. This requires manual welding of the steel plate in four places to ensure a stable connection between the steel plate and the angle steel. When using manual welding, workers need to first position the steel plate and then weld it. This operation is cumbersome, the construction intensity is high, and the welding accuracy varies, which affects the strength of the entire lattice column. Summary of the Invention
[0005] To address the shortcomings of the existing technology, this invention proposes a lattice column welding device for building construction.
[0006] A welding device for lattice columns used in building construction, comprising:
[0007] Base;
[0008] A welding device is installed on a base. The welding device is equipped with a support plate. The support plate is equipped with a pressure applying mechanism, a moving mechanism, and a welding mechanism. The pressure applying mechanism drives the welding mechanism to move downward and applies pressure to the lattice column. The moving mechanism is used to drive the welding mechanism to move and weld at different positions of the lattice column.
[0009] The pressure applying mechanism includes a first cylinder, a pushing component, and a pressure applying assembly. The first cylinder is located at the upper end of the fixed plate, and the pushing component is located at the lower end of the first cylinder. The lower end of the pushing component has symmetrically arranged pressure applying rods, and the lower end of the pressure applying rods has a first hinge rod. The first hinge rod has symmetrically arranged pressure applying wheels. The pressure applying assembly consists of symmetrically arranged first and second hinge components. The first and second hinge components are respectively located on both sides of the pressure applying rod. The first hinge component is in contact with the pressure applying rod, and the second hinge component is hinged to the welding mechanism. The first and second hinge components are hinged together by a second hinge rod.
[0010] The moving mechanism includes a second cylinder, a moving component, a moving block, and symmetrically arranged sliding components. The welding mechanism is mounted on the sliding components and moves with the sliding components.
[0011] The welding mechanism includes a welding head, a fixed component, and a movable component. The fixed component is mounted on the sliding component, and the movable component is positioned in the middle of the fixed component. The welding head is docked with and limited by the fixed component.
[0012] In this invention, a through groove is formed in the middle of the pressure rod, and a contact rod is provided on the first hinge member, the contact rod being disposed in the through groove.
[0013] In this invention, the second hinge member is provided with a rotating body, which is connected to the fixed member through the rotating body. The rotating member is composed of a first rod, a hinge member, and a second rod. The first rod is hinged to the fixed member, and the second rod is disposed in the middle of the hinge member and hinged to the rotating body. The center lines of the first rod and the second rod are arranged perpendicularly.
[0014] In this invention, the sliding member is provided with symmetrically arranged mounting arms, the mounting arms are provided with mounting bodies, the mounting bodies are provided with positioning holes, the welding head is disposed in the positioning holes, and a first spring is sleeved on the welding head, with the lower end of the first spring placed on the mounting body.
[0015] In this invention, the welding head consists of a pressure end and a welding end, the diameter of the pressure end is larger than the diameter of the welding end, and the pressure end is in contact with the upper end of the first spring.
[0016] In this invention, a tapered hole, a sliding hole, and a limiting hole are formed in the middle of the pressure-applying end, and the inner diameter of the limiting hole is larger than the inner diameter of the sliding hole.
[0017] In this invention, a first movable hole and a second movable hole are formed in the middle of the fastener. The inner diameter of the first movable hole is smaller than the inner diameter of the second movable hole, and a clearance groove is provided in the second movable hole.
[0018] In this invention, the movable component consists of a movable body and a pull rod. The pull rod is disposed in a first movable hole and has a positioning nut on it. The positioning nut is disposed outside the fixed component. The movable body is disposed in a second movable hole. A second spring is sleeved on the pull rod. The second spring is disposed on the movable body and is located in the second movable hole.
[0019] In this invention, the fixing member is provided with symmetrically arranged limiting members. The limiting members are connected to the fixing member through a hinge block. The limiting members are composed of a hinge part and a limiting part. The hinge part is hinged to the hinge block through a third hinge rod. The limiting part rotates with the hinge part, keeping the limiting part rotating into the limiting hole.
[0020] In this invention, the limiting member is provided with a plurality of first teeth, the movable body is provided with symmetrically arranged planes, and the planes are provided with second teeth that cooperate with the first teeth.
[0021] The lattice column welding device for building construction according to this invention has the following advantages: This lattice column welding device can automatically weld steel plates and angle steel through four welding mechanisms. Before welding, the steel plates to be welded can be positioned by a pressure applying mechanism, improving welding accuracy and preventing displacement during welding. Simultaneously, the welding mechanism can move downwards with the pressure applying mechanism, achieving positioning before welding. The use of movable parts allows the limiting parts to no longer restrict the position of the welding head, enabling disassembly and maintenance of welding heads used for extended periods without the need for additional tools, thus improving the convenience of welding head assembly and disassembly. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the lattice column welding device for building construction according to the present invention;
[0023] Figure 2 for Figure 1 The right view;
[0024] Figure 3 for Figure 2 A schematic diagram of the lattice column, pressure application mechanism, moving mechanism and welding mechanism in the diagram;
[0025] Figure 4 for Figure 3 A schematic diagram of the lattice column structure in the image;
[0026] Figure 5 for Figure 3 The supporting plate, pressure application mechanism, moving mechanism, and welding mechanism in the middle;
[0027] Figure 6 for Figure 5 A schematic diagram of the structure in another direction;
[0028] Figure 7 for Figure 6 Schematic diagram of the pressure application mechanism, moving mechanism and welding mechanism in the diagram;
[0029] Figure 8 for Figure 7 A schematic diagram of the pressure application mechanism in the diagram;
[0030] Figure 9 This is a schematic diagram of the welding mechanism and pressure application component in this invention;
[0031] Figure 10 for Figure 9Exploded view of the welding mechanism, rotating parts, and second hinge components in the diagram;
[0032] Figure 11 for Figure 9 Perspective view of the welding mechanism in the middle;
[0033] Figure 12 for Figure 11 Enlarged view of section A in the image;
[0034] Figure 13 for Figure 10 A schematic diagram of the fastener structure in the diagram;
[0035] Figure 14 for Figure 13 Enlarged view of section B in the image;
[0036] Figure 15 This is a perspective view of the welding head structure in this invention;
[0037] Figure 16 This is a schematic diagram showing the changing states of the first and second hinge components in this invention.
[0038] In the diagram: 1. Base; 2. Welding device; 3. Lattice column; 4. Steel plate; 5. Support plate; 6. Pressing mechanism; 7. Moving mechanism; 8. Welding mechanism; 9. Angle steel; 10. Weld seam; 11. Gap; 12. Welding head; 13. First cylinder; 14. Pushing component; 15. Pressing assembly; 16. Fixing plate; 17. Pressing rod; 18. First hinge rod; 19. Pressing wheel; 20. First hinge component; 21. Second hinge rod; 22. Through slot; 23. Contact rod; 24. Fixing component; 25. Rotating component; 26. First spring; 27. Sliding component; 28. Rotating body; 29. First rod body; 30. Hinge body; 31. Second... Rod body 32, second cylinder 33, moving part 34, moving block 35, dovetail block 36, dovetail groove 37, mounting arm 38, mounting body 39, positioning port 40, movable part 41, limiting part 42, pressure end 43, welding end 44, tapered hole 45, sliding hole 46, limiting hole 47, first movable hole 48, second movable hole 49, clearance groove 50, movable body 51, pulling rod 52, positioning nut 53, second spring 54, hinge block 55, hinge part 56, limiting part 57, third hinge rod 58, first tooth 59, plane 60, second tooth 61, connecting block 62. Detailed Implementation
[0039] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
[0040] like Figures 1 to 16As shown, the lattice column welding device for building construction of this invention includes a base 1 and a welding device 2. Rotation positioning structures can be provided at both ends of the base 1. The rotation positioning structures can adopt existing technologies. Since this application mainly describes the welding device 2, the positioning and rotation structure of the lattice column 3 will not be described in detail.
[0041] Welding device 2 is mounted on base 1 and can move on base 1 to weld steel plates 4 at different locations. A support plate 5 is mounted on welding device 2, and a pressure applying mechanism 6, a moving mechanism 7, and a welding mechanism 8 are mounted on support plate 5. Pressure applying mechanism 6 drives welding mechanism 8 to move downward and applies pressure to lattice column 3. Moving mechanism 7 is used to move welding mechanism 8 to weld at different locations of lattice column 3.
[0042] like Figure 4 As shown, the lattice column 3 consists of four angle steels 9 and several steel plates 4. The connection between the steel plates 4 and the angle steels 9 forms a welded seam 10, which is the welding position of the welding mechanism 8, maintaining the connection between the angle steels 9 and the steel plates 4. Since there is a gap 11 between the angle steels 9, welding is not required here. Therefore, when the moving mechanism 7 drives the welding mechanism 8 to move, it is only necessary to keep the welding head 12 starting from either end of the welded seam 10. Then, when it reaches the position of another steel plate 4, it is necessary to keep the welding head 12 starting from the opposite end of either end.
[0043] The pressure applying mechanism 6 includes a first cylinder 13, a pushing member 14, and a pressure applying component 15. The first cylinder 13 pushes the pushing member 14 downward, which in turn causes the pressure applying component 15 to be subjected to force. The first cylinder 13 is located at the upper end of the fixed plate 16, and the pushing member 14 is located at the lower end of the first cylinder 13. The lower end of the pushing member 14 is provided with symmetrically arranged pressure applying rods 17, and the lower end of the pressure applying rods 17 is provided with a first hinge rod 18. The first hinge rod 18 is provided with symmetrically arranged pressure applying wheels 19, which are used to apply pressure to the steel plate 4 to maintain the stable positioning between the steel plate 4 and the angle steel 9.
[0044] The pressure-applying component 15 consists of a symmetrically arranged first hinge 20 and second hinge 21, which are respectively located on both sides of the pressure-applying rod 17. The structures of the first hinge 20 and the second hinge 21 are not completely identical. Since the first hinge 20 and the second hinge 21 need to maintain a hinged connection, openings at different positions need to be provided according to the hinge structure. See attached diagram. Figure 6 As shown.
[0045] The first hinge 20 contacts the pressure rod 17, the second hinge 21 is hinged to the welding mechanism 8, and the first hinge 20 and the second hinge 21 are hinged together by the second hinge rod 22.
[0046] A through groove 23 is formed in the middle of the pressure rod 17. A contact rod 24 is provided on the first hinge member 20 and is disposed in the through groove 23. The contact rod 24 hinges the first hinge member 20 and the second hinge member 21. When the pressure rod 17 moves downward, the contact rod 24 is pushed downward by the pressure rod 17 first, so that the hinged part of the first hinge member 20 and the second hinge member 21 moves downward first, and then drives the second hinge member 21, which is hinged to the first hinge member 20, to move. The first hinge member 20 and the second hinge member 21, which were originally horizontally set, are set at an angle, that is, the first hinge member 20 is below the second hinge member 21.
[0047] The first hinge 20 and the second hinge 21 remain horizontal because the first spring 27 pushes the welding head 12 upward. Since the welding head 12 is connected to the fixing member 25, and the fixing member 25 is hinged to the second hinge 21 via the rotating member 26, the movement of the fixing member 25 simultaneously moves the second hinge 21. The first spring 27 pushes and straightens the first hinge 20 and the second hinge 21, placing them under stress. When the first cylinder 13 moves the contact rod 24 downward, it moves the fixing member 25 and the welding head 12 via the first hinge 20 and the second hinge 21, thereby compressing the first spring 27.
[0048] The first hinge 20 has two locations, while the second hinge 21 has four locations, with each of the two second hinges 21 hinged to the first hinge 20. Both the first hinge 20 and the second hinge 21 can rotate towards the pressure rod 17. The second hinge rod 22 connecting the first hinge 20 and the second hinge 21 is vertically aligned with the contact rod 24. When the second hinge 21 rotates, it moves towards the welding mechanisms 8 at both ends, which is different from the rotation direction of the first hinge 20. Therefore, the first hinge 20 does not move with the sliding member 28, while the second hinge 21 moves with the sliding member 28 and then rotates around the second hinge rod 22.
[0049] The second hinge member 21 is provided with a rotating body 29. The rotating body 29 is connected to the fixed member 25 through a rotating member 26. The rotating member 26 is composed of a first rod 30, a hinge member 31, and a second rod 32. The first rod 30 is hinged to the fixed member 25, and the second rod 32 is located in the middle of the hinge member 31 and is hinged to the rotating body 29. The center lines of the first rod 30 and the second rod 32 are set perpendicularly.
[0050] The second hinge 21 can be rotated in both directions via the rotating member 26. Figure 9 and 10 As shown, the second hinge 21 is rotated around the first rod 30 in the first direction, and rotated around the second rod 32 in the second direction. This allows the second hinge 21 to be inclined relative to the first hinge 20, and also allows the first hinge 20 and the second hinge 21 to be non-parallel. In the non-parallel state, the second hinge 21 is rotated towards the welding mechanism 8.
[0051] The moving mechanism 7 includes a second cylinder 33, a moving component 34, a moving block 35, and symmetrically arranged sliding components 28. The second cylinder 33 is mounted on the support plate 5, and the welding mechanism 8 is mounted on the sliding component 28 and moves with it. The sliding component 28 has a dovetail block 36, and the support plate 5 has a dovetail groove 37 that mates with the dovetail block 36. The moving component 34 is connected to the second cylinder 33 and is connected to the two sliding components 28 via the moving block 35.
[0052] The sliding member 28 is provided with symmetrically arranged mounting arms 38, and mounting bodies 39 are provided on the mounting arms 38. The mounting bodies 39 are provided with positioning openings 40. The welding head 12 is disposed in the positioning opening 40, and a first spring 27 is sleeved on the welding head 12. The lower end of the first spring 27 rests on the mounting body 39. The fixing member 25 can slide within the mounting arms 38 and the positioning opening 40. The positioning opening 40 is arc-shaped, and the arc angle of the positioning opening 40 is slightly greater than 180°, so that the welding head 12 can be directly pushed into the positioning opening 40 for limiting.
[0053] The welding mechanism 8 includes a welding head 12, a fixed member 25, and a movable member 41. The fixed member 25 is mounted on the sliding member 28, and the movable member 41 is positioned in the middle of the fixed member 25. The welding head 12 is positioned and limited by the fixed member 25. The fixed member 25 can slide within the mounting arm 38 and the positioning port 40. The movable member 41 is located inside the fixed member 25. When the movable member 41 is pulled, the limiting member 42 no longer restricts the position of the welding head 12, allowing the welding head 12 to be pushed, compressing the first spring 27, thereby removing the welding head 12.
[0054] The welding head 12 consists of a pressure end 43 and a welding end 44. The diameter of the pressure end 43 is larger than the diameter of the welding end 44, and the pressure end 43 contacts the upper end of the first spring 27. A tapered hole 45, a sliding hole 46, and a limiting hole 47 are formed in the middle of the pressure end 43. The inner diameter of the limiting hole 47 is larger than the inner diameter of the sliding hole 46. The tapered hole 45 is used to guide the fixing member 25, facilitating the installation of the welding head 12. The sliding hole 46 is used for installing the fixing member 25. A protrusion (not shown in the figure) can be provided in the sliding hole 46 to limit the position of the fixing member 25, preventing it from entering the limiting hole 47 and ensuring that the fixing member 25 remains within the sliding hole 46.
[0055] A first movable hole 48 and a second movable hole 49 are formed in the middle of the fixing member 25. The inner diameter of the first movable hole 48 is smaller than the inner diameter of the second movable hole 49. A clearance groove 50 is provided in the second movable hole 49, and a second tooth 61 is provided in the clearance groove 50. The fixing member 25 is provided with a connecting block 62 that mates with the first rod body 30.
[0056] The movable component 41 consists of a movable body 51 and a pull rod 52. The pull rod 52 is disposed within the first movable hole 48 and has a positioning nut 53. The pull rod 52 may be threaded, and the positioning nut 53 is connected to the pull rod 52 via the thread. The positioning nut 53 is disposed outside the fixed component 25 and is used to limit the position of the movable component 41, preventing it from falling off the middle of the fixed component 25. The movable body 51 is disposed within the second movable hole 49, and a second spring 54 is sleeved on the pull rod 52. The second spring 54 is disposed on the movable body 51 and is located within the second movable hole 49.
[0057] The fixing member 25 is provided with symmetrically arranged limiting members 42. The limiting members 42 are connected to the fixing member 25 through the hinge block 55. The limiting member 42 consists of a hinge part 56 and a limiting part 57. The hinge part 56 is hinged to the hinge block 55 through the third hinge rod 58. The limiting part 57 rotates with the hinge part 56, keeping the limiting part 57 rotating into the limiting hole 47.
[0058] The limiting member 42 is provided with multiple first teeth 59, and the movable body 51 is provided with symmetrically arranged planes 60, and the planes 60 are provided with second teeth 61 that cooperate with the first teeth 59.
[0059] like Figure 11 and 12 As shown, when the movable part 41 is pulled, the movable part 41 can be kept to compress the second spring 54. The second tooth 61 on the movable part 41 drives the limiting part 42 to rotate, keeping the limiting part 42 disengaged from the limiting hole 47, thereby pushing the welding head 12 to compress the first spring 27. Then the welding head 12 can be taken out for cleaning or maintenance.
[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A lattice column welding device for construction work, characterized by, include: Base; A welding device is installed on a base. The welding device is equipped with a support plate. The support plate is equipped with a pressure applying mechanism, a moving mechanism, and a welding mechanism. The pressure applying mechanism drives the welding mechanism to move downward and applies pressure to the lattice column. The moving mechanism is used to drive the welding mechanism to move and weld at different positions of the lattice column. The pressure applying mechanism includes a first cylinder, a pushing component, and a pressure applying assembly. The first cylinder is located at the upper end of the fixed plate, and the pushing component is located at the lower end of the first cylinder. The lower end of the pushing component has symmetrically arranged pressure applying rods, and the lower end of the pressure applying rods has a first hinge rod. The first hinge rod has symmetrically arranged pressure applying wheels. The pressure applying assembly consists of symmetrically arranged first and second hinge components. The first and second hinge components are respectively located on both sides of the pressure applying rod. The first hinge component is in contact with the pressure applying rod, and the second hinge component is hinged to the welding mechanism. The first and second hinge components are hinged together by a second hinge rod. The moving mechanism includes a second cylinder, a moving component, a moving block, and symmetrically arranged sliding components. The welding mechanism is mounted on the sliding components and moves with the sliding components. The welding mechanism includes a welding head, a fixed component, and a movable component. The fixed component is mounted on the sliding component, and the movable component is positioned in the middle of the fixed component. The welding head is docked with and limited by the fixed component.
2. The lattice column welding apparatus for construction work according to claim 1, characterized by A through groove is formed in the middle of the pressure rod, and a contact rod is provided on the first hinge member, which is disposed in the through groove.
3. The lattice column welding apparatus for construction work according to claim 1, characterized by The second hinge member is provided with a rotating body, which is connected to the fixed member through the rotating body. The rotating member is composed of a first rod, a hinge member, and a second rod. The first rod is hinged to the fixed member, and the second rod is located in the middle of the hinge member and is hinged to the rotating body. The center lines of the first rod and the second rod are set perpendicularly.
4. The lattice column welding apparatus for construction work according to claim 1, characterized by The sliding member is provided with symmetrically arranged mounting arms, the mounting arms are provided with mounting bodies, the mounting bodies are provided with positioning holes, the welding head is provided in the positioning holes, and a first spring is sleeved on the welding head, with the lower end of the first spring placed on the mounting body.
5. The lattice column welding apparatus for construction work according to claim 4, characterized by The welding head consists of a pressure end and a welding end. The diameter of the pressure end is larger than the diameter of the welding end, and the pressure end is in contact with the upper end of the first spring.
6. The lattice column welding apparatus for construction work according to claim 5, characterized by The middle of the pressure-applying end is formed with a tapered hole, a sliding hole, and a limiting hole, and the inner diameter of the limiting hole is larger than the inner diameter of the sliding hole.
7. The lattice column welding apparatus for construction work according to claim 6, characterized by The fastener has a first movable hole and a second movable hole in the middle. The inner diameter of the first movable hole is smaller than the inner diameter of the second movable hole, and the second movable hole is provided with a clearance groove.
8. The lattice column welding apparatus for construction work according to claim 7, characterized by The movable component consists of a movable body and a pull rod. The pull rod is disposed in a first movable hole and has a positioning nut on it. The positioning nut is disposed outside the fixed component. The movable body is disposed in a second movable hole. A second spring is sleeved on the pull rod and is disposed on the movable body and located in the second movable hole.
9. The lattice column welding apparatus for construction work according to claim 8, characterized by The fixing member is provided with symmetrically arranged limiting members. The limiting members are connected to the fixing member through a hinge block. The limiting member consists of a hinge part and a limiting part. The hinge part is hinged to the hinge block through a third hinge rod. The limiting part rotates with the hinge part, keeping the limiting part rotating into the limiting hole.
10. The lattice column welding device for building construction according to claim 9, characterized in that, The limiting member is provided with multiple first teeth, and the movable body is provided with symmetrically arranged planes, and the planes are provided with second teeth that cooperate with the first teeth.