Welding fixtures for steel structure workpieces

Abstract

This utility model provides a welding fixture for steel structure workpieces, belonging to the field of steel structure technology. The welding fixture includes a base and a welding pre-positioning mechanism. A frame is mounted on the top of the base, and an operating port is provided at the bottom of the frame. Clamping seats are fixedly connected to both sides of the top of the frame, and clamping plates are movably connected to the top of the clamping seats. Pre-positioning ports are opened on both sides of the top of the clamping plates, and pre-positioning seats are movably connected inside the pre-positioning ports. Pre-positioning force-applying mechanisms are provided on both sides of the pre-positioning seats. By setting up the welding pre-positioning mechanism, while cooperating with the frame to clamp external steel structure workpieces, the steel structure workpiece can be pre-positioned before it is fully clamped. This avoids the situation where the frame is unable to pre-position the steel structure workpiece during welding, leading to workpiece displacement. Therefore, the pre-positioning and clamping effects of the frame are improved.

Description

Technical Field

[0001] This utility model relates to the field of steel structure technology, and more specifically, to welding fixtures for steel structure workpieces. Background Technology

[0002] Steel structure welding fixtures are specialized auxiliary equipment designed to ensure the quality and efficiency of steel structure welding. They are widely used in construction, bridges, and machinery manufacturing. Their core function is to ensure the correct relative position and dimensional accuracy of the workpiece during welding through precise positioning, reliable clamping, and stable support, reducing welding deformation and improving the standardization and consistency of welding operations. The steel structure welding fixture applies stable pressure to fix the workpiece using clamping devices, preventing displacement or deformation due to thermal stress during welding. The supporting structure provides a rigid foundation, ensuring the overall stability of the fixture. By optimizing the workpiece posture and weld position, welding operation errors are reduced, ensuring the dimensional accuracy of each welding node, and achieving efficient and high-quality steel structure welding operations. Since alignment and welding positioning are required before welding, it is necessary to perform pre-positioning operations for the steel structure before welding.

[0003] In related technologies, during the use of welding fixtures, the clamps are typically moved by a screw or electric push rod to clamp and position the steel structure workpiece for welding, so that workers can perform welding operations on the steel structure.

[0004] However, in the current use of welding fixtures, the steel structure is clamped and positioned by directly pushing the fixture. During the operation of the fixture, the position of the steel structure may shift, resulting in a deviation between the steel structure workpiece and the weld joint after the fixture is positioned. This affects the pre-positioning and clamping effect of the welding fixture. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a welding fixture for steel structure workpieces that overcomes or at least partially solves the above technical problems.

[0006] This utility model is implemented as follows:

[0007] This utility model provides a welding fixture for steel structure workpieces, including a base, a frame installed on the top of the base, and an operating port provided at the bottom of the frame;

[0008] The welding pre-determining mechanism includes:

[0009] Clamping base; the clamping base is fixedly connected to both sides of the top of the frame, and a clamping plate is movably connected to the top of the clamping base;

[0010] The pre-reservation port is located on both sides of the top of the clamping plate, and a pre-reservation seat is movably connected inside the pre-reservation port.

[0011] A predetermined force-applying mechanism is provided on both sides of the predetermined seat.

[0012] In a preferred embodiment, the predetermined force-applying mechanism includes a force-applying groove, a force-applying sleeve, and a spring. The force-applying groove is formed on both sides of the predetermined seat. The force-applying sleeve is movably connected to the top inside the force-applying groove. The outer side of the force-applying sleeve is fixedly connected to the inner wall of the predetermined opening. The spring is disposed inside the force-applying groove. One end of the spring is connected to the bottom of the inner wall of the force-applying groove, and the other end of the spring is connected to the inner wall of the force-applying sleeve.

[0013] In a preferred embodiment, a lower pressure frame is movably connected to the top of the clamping plate, and the lower pressure frame is internally threaded with a stud that is connected to the clamping plate.

[0014] In a preferred embodiment, connecting sleeves are fixedly connected to both sides of the top of the clamping plate, and a connecting seat located inside the connecting sleeve is fixedly connected to the bottom of the stud.

[0015] In a preferred embodiment, both the lower pressure frame and the clamping plate have lifting ports on their rear sides, and lifting bars are movably connected inside the lifting ports. The rear side of the lifting bars is fixedly connected to the front side of the frame.

[0016] In a preferred embodiment, positioning cavities are provided on both sides of the front side of the pressure frame, and a positioning frame is movably connected inside the positioning cavity.

[0017] In a preferred embodiment, positioning holes are provided on both sides of the rear side of the frame, and the rear side of the positioning frame is located inside the positioning holes.

[0018] In a preferred embodiment, a magnetic strip is embedded and fixedly connected to the front side of the pressure frame, and a magnetic strip that is magnetically connected to the magnetic strip is embedded and fixedly connected to the rear side of the positioning frame.

[0019] The welding fixture for steel structure workpieces provided by this utility model has the following beneficial effects:

[0020] 1. By setting up a welding pre-positioning mechanism, the steel structure can be pre-positioned before it is fully clamped while the frame is clamping the external steel structure. This avoids the situation where the steel structure is difficult to weld and clamp and pre-position during use, which could lead to the steel structure shifting. Therefore, the pre-positioning and clamping effects of the frame are improved.

[0021] 2. By setting a predetermined force application mechanism, a downward predetermined positioning thrust can be provided to the predetermined seat, so that the user can use the predetermined seat to clamp and position the steel structure, avoiding the situation where it is difficult to apply force and position the predetermined seat during use, thus improving the force application and positioning effect of the predetermined seat.

[0022] 3. By setting up a lower pressure frame and studs, a downward clamping force can be applied to the clamping plate, avoiding the situation where the clamping plate is difficult to cooperate with the clamping seat to clamp and position the steel structure, thus improving the clamping effect of the clamping plate. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is an overall perspective view provided by an embodiment of the present utility model;

[0025] Figure 2 A rear-view perspective three-dimensional structural diagram of the lower pressure frame provided for an embodiment of this utility model;

[0026] Figure 3 A schematic diagram of the three-dimensional cross-sectional structure of the predetermined seat provided for an embodiment of this utility model;

[0027] Figure 4 A three-dimensional cross-sectional structural diagram of the lower pressure frame provided for an embodiment of this utility model;

[0028] In the diagram: 1. Base; 2. Frame; 3. Operating port; 4. Clamping seat; 5. Clamping plate; 6. Pre-set port; 7. Pre-set seat; 8. Force application groove; 9. Force application sleeve; 10. Spring; 11. Lower pressure frame; 12. Stud; 13. Connecting sleeve; 14. Connecting seat; 15. Lifting port; 16. Lifting bar; 17. Positioning cavity; 18. Positioning frame; 19. Positioning hole; 20. Magnetic strip; 21. Magnetic suction strip. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] Reference Figures 1-4 This utility model provides a technical solution: a welding fixture for steel structure workpieces, including a base 1 and a welding pre-positioning mechanism. A frame 2 is installed on the top of the base 1, and an operation port 3 is provided at the bottom of the frame 2. The frame 2 can clamp the external steel structure while performing pre-positioning work on the steel structure before it is fully clamped, thus avoiding the situation where the frame 2 is difficult to pre-position for welding clamping, which would lead to the steel structure shifting. Therefore, the operation pre-positioning effect and clamping effect of the frame 2 are improved.

[0031] Reference Figures 1-4 In a preferred embodiment, the welding pre-positioning mechanism includes a clamping seat 4, which is fixedly connected to both sides of the top of the frame 2. A clamping plate 5 is movably connected to the top of the clamping seat 4. Pre-positioning openings 6 are opened on both sides of the top of the clamping plate 5. A pre-positioning seat 7 is movably connected inside the pre-positioning openings 6. Pre-positioning force-applying mechanisms are arranged on both sides of the pre-positioning seat 7. First, the pre-positioning seat 7 is held and moved upward to place the external steel structure on the top of the clamping seat 4, so that the steel structure is at the bottom of the pre-positioning seat 7. Then, the pre-positioning seat 7 is held and moved downward to contact the steel structure, so that the pre-positioning seat 7 cooperates with the clamping seat 4 to perform pre-positioning work on the steel structure. Subsequently, the clamping plate 5 is moved downward to contact the steel structure, so that the clamping plate 5 cooperates with the clamping seat 4. The steel structure is clamped and positioned using a pre-positioning mechanism comprising a force-applying groove 8, a force-applying sleeve 9, and a spring 10. The force-applying groove 8 is located on both sides of the pre-positioning seat 7. The force-applying sleeve 9 is movably connected to the top inside the force-applying groove 8, and the outer side of the force-applying sleeve 9 is fixedly connected to the inner wall of the pre-positioning opening 6. The spring 10 is located inside the force-applying groove 8, with one end connected to the bottom of the inner wall of the force-applying groove 8 and the other end connected to the inner wall of the force-applying sleeve 9. This provides a downward pre-positioning thrust to the pre-positioning seat 7, allowing the user to clamp and position the steel structure using the pre-positioning seat 7. This avoids situations where it is difficult to apply force and position the pre-positioning seat 7 during use, thus improving the force application and pre-positioning effect of the pre-positioning seat 7.

[0032] Reference Figures 2-4In a preferred embodiment, a lower pressure frame 11 is movably connected to the top of the clamping plate 5. A stud 12 connected to the clamping plate 5 is threaded inside the lower pressure frame 11. This allows a downward clamping force to be applied to the clamping plate 5, preventing the clamping plate 5 from being difficult to use in conjunction with the clamping seat 4 to clamp and position the steel structure. This improves the clamping effect of the clamping plate 5. Connecting sleeves 13 are fixedly connected to both sides of the top of the clamping plate 5. A connecting seat 14 located inside the connecting sleeve 13 is fixedly connected to the bottom of the stud 12. This allows for a rotatable connection between the stud 12 and the clamping plate 5, preventing the clamping plate 5 from separating when the stud 12 is in use. This improves the connection effect between the stud 12 and the clamping plate 5.

[0033] Reference Figures 2-4 In a preferred embodiment, lifting ports 15 are provided on the rear sides of both the lower pressure frame 11 and the clamping plate 5. Lifting bars 16 are movably connected inside the lifting ports 15. The rear side of the lifting bars 16 is fixedly connected to the front side of the frame 2. This allows for lifting and connecting the clamping plate 5 and the lower pressure frame 11 with the frame 2 to prevent displacement, thus avoiding positional shifts during use. This improves the stability of the lifting and lowering operation of the clamping plate 5 and the lower pressure frame 11. Positioning cavities 17 are provided on both sides of the front side of the lower pressure frame 11. Positioning frames 18 are movably connected inside the positioning cavities 17, allowing for insertion and positioning between the lower pressure frame 11 and the frame 2. This avoids difficulties in positioning the lower pressure frame 11 during use, thus improving the ease of positioning the lower pressure frame 11.

[0034] Reference Figures 2-4 In a preferred embodiment, by providing positioning holes 19 on both sides of the rear side of the frame 2, and with the rear side of the positioning frame 18 located inside the positioning holes 19, multiple insertion and positioning spaces can be provided for the positioning frame 18. This avoids the situation where the positioning frame 18 is difficult to adapt to the positioning requirements of the pressure frame 11 during use, thus improving the insertion and positioning flexibility of the positioning frame 18. A magnetic strip 20 is embedded and fixedly connected to the front side of the pressure frame 11, and a magnetic strip 21 that is magnetically connected to the magnetic strip 20 is embedded and fixedly connected to the rear side of the positioning frame 18. This allows for magnetic positioning between the positioning frame 18 and the pressure frame 11 during operation, preventing the positioning frame 18 from easily moving out of the positioning holes 19 during operation, thus improving the working stability of the positioning frame 18.

[0035] Specifically, the working process or working principle of this steel structure workpiece welding fixture is as follows: During use, based on the dimensions of the external steel structure workpiece, the handheld lower pressure frame 11, through the stud 12 and connecting sleeve 13 and connecting seat 14, drives the clamping plate 5 to move up and down, adjusting the clamping range between the clamping plate 5 and the clamping seat 4. At this time, the lifting bar 16 moves inside the lifting port 15, performing lifting and connecting anti-deviation work between the lower pressure frame 11, the clamping plate 5, and the frame 2. After the lifting and adjusting of the clamping plate 5 is completed, the handheld positioning frame 18 moves rearward into the positioning hole 19, allowing the positioning frame 18 to perform insertion and positioning work between the lower pressure frame 11 and the frame 2 after the operation. At this time, the magnetic strip 21 moves with the positioning frame 18 and contacts the magnetic strip 20, performing magnetic positioning work between the positioning frame 18 and the lower frame. Subsequently, the handheld clamping plate 5's inner side, the predetermined seat 7, moves upward. At this time, the spring 10 contracts under the influence of the upward force of the predetermined seat 7, preparing for subsequent... The force-applying sleeve 9 prepares to apply a downward pressure to the predetermined seat 7, and moves an external steel structure workpiece into the clamping seat 4 at the bottom of the moved predetermined seat 7. Then, the predetermined seat 7 is moved downward to contact the steel structure workpiece. At this time, the contracted spring 10, in conjunction with the force-applying sleeve 9, applies a downward thrust to the predetermined seat 7, so that the predetermined seat 7, in conjunction with the clamping seat 4, performs the work of pressing down and positioning the steel structure. Then, another steel structure is held and placed inside the clamping seat 4 and the predetermined seat 7 on the other side, and the two steel structure workpieces are aligned to prepare for subsequent welding between the steel structure workpieces. After the steel structure is pressed down and positioned by the predetermined seat 7, the hand-held stud 12 is rotated in conjunction with the lower pressure frame 11 to apply a downward moving force to the clamping plate 5. At this time, the connecting seat 14 follows the stud 12 and rotates inside the connecting sleeve 13, and performs the work of force connection between the stud 12 and the clamping plate 5, so that the clamping plate 5 moves downward to cooperate with the clamping seat 4 and the predetermined seat 7 to perform the work of clamping and positioning the steel structure workpiece.

Claims

1. Steel structure workpiece welding tooling, comprising a base (1), a frame (2) is mounted on the top of the base (1), and an operation opening (3) is arranged at the bottom of the frame (2), characterized in that ； The welding pre-determining mechanism includes: Clamping seat (4); The clamping seat (4) is fixedly connected to both sides of the top of the frame (2), and the top of the clamping seat (4) is movably connected to a clamping plate (5); Pre-reservation port (6); the pre-reservation port (6) is opened on both sides of the top of the clamping plate (5), and the pre-reservation seat (7) is movably connected inside the pre-reservation port (6); A predetermined force-applying mechanism is provided on both sides of the predetermined seat (7).

2. The steel structural workpiece welding fixture according to claim 1, characterized by, The predetermined force application mechanism includes a force application groove (8), a force application sleeve (9), and a spring (10). The force application groove (8) is opened on both sides of the predetermined seat (7). The force application sleeve (9) is movably connected to the top inside the force application groove (8). The outer side of the force application sleeve (9) is fixedly connected to the inner wall of the predetermined opening (6). The spring (10) is set inside the force application groove (8). One end of the spring (10) is connected to the bottom of the inner wall of the force application groove (8), and the other end of the spring (10) is connected to the inner wall of the force application sleeve (9).

3. The steel structural workpiece welding fixture according to claim 1, wherein The top of the clamping plate (5) is movably connected to a lower pressure frame (11), and the lower pressure frame (11) is internally threaded with a stud (12) connected to the clamping plate (5).

4. The steel structural workpiece welding fixture according to claim 3, wherein Both sides of the top of the clamping plate (5) are fixedly connected to the connecting sleeves (13), and the bottom of the stud (12) is fixedly connected to the connecting seat (14) located inside the connecting sleeves (13).

5. The steel structural workpiece welding fixture according to claim 3, wherein The lower pressure frame (11) and the clamping plate (5) are both provided with lifting ports (15) on their rear sides. The lifting ports (15) are movably connected to lifting bars (16), and the rear side of the lifting bars (16) is fixedly connected to the front side of the frame (2).

6. The steel structural workpiece welding fixture of claim 3, wherein, The lower pressure frame (11) has positioning cavities (17) on both sides of its front side, and a positioning frame (18) is movably connected inside the positioning cavity (17).

7. The steel structural workpiece welding fixture of claim 6, wherein, The frame (2) has positioning holes (19) on both sides of its rear side, and the rear side of the positioning frame (18) is located inside the positioning holes (19).

8. The steel structural workpiece welding fixture according to claim 7, wherein A magnetic strip (20) is inlaid and fixedly connected to the front side of the lower pressure frame (11), and a magnetic suction strip (21) that is magnetically connected to the magnetic strip (20) is inlaid and fixedly connected to the rear side of the positioning frame (18).

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