Welding device for steel structure building construction

Abstract

The invention discloses a welding device for steel structure building construction, which relates to the technical field of steel structure welding and comprises I-shaped steel, an auxiliary frame, a welding gun and a clamp mounted on the auxiliary frame. The clamp is composed of a plurality of first permanent magnet wheels rotationally installed on the auxiliary frame, a limiting module, a conversion module, an adjusting module, an installation module and a flatness sensing module. The limiting module is used in cooperation with the auxiliary frame and used for vertically limiting the auxiliary frame. The conversion module is matched with the flatness sensing module, state conversion is conducted according to the flatness of the side edges of the I-shaped steel, and the influence of protruding of the side edges of the I-shaped steel on movable welding is avoided. The device has the advantages that the device is convenient to mount and dismount, the position and angle of the welding gun and the pressure of the welding gun and the I-shaped steel welding part can be automatically adjusted according to the flatness of the I-shaped steel, and the device has higher welding uniformity and continuity, higher welding quality and higher welding efficiency.

Description

Technical Field

[0001] This invention relates to the field of steel structure welding technology, and in particular to a welding device for steel structure construction. Background Technology

[0002] Steel structure buildings are a type of building structure mainly composed of steel materials. They consist of components such as steel beams, steel columns, and steel trusses made of steel sections and plates. The components are usually connected by welds, bolts, and rivets.

[0003] Currently, steel structure welding during the construction process still relies on handheld welding torches, which have poor stability. Therefore, CN214079928U discloses a welding torch stabilizing holder and a welding torch stabilizing assembly, which includes a base assembly, a clamping frame, and an adjusting assembly. The clamping frame includes a first clamping member and a second clamping member that are rotatably connected, forming a clamping space for clamping the welding torch between the first clamping member and the second clamping member. The first clamping member is rotatably connected to the base assembly. The adjusting assembly is located on the first clamping member or the second clamping member and is used to drive the first clamping member or the second clamping member to open or close the clamping space.

[0004] The first clamping member and the second clamping member form a clamping space for clamping the welding gun. At the same time, the first clamping member or the second clamping member is rotatably connected. The first clamping member or the second clamping member can be driven by the adjustment component to open or close the clamping space, thereby improving the convenience of clamping and the purpose of the first clamping member or the second clamping member to tightly clamp the welding gun. It can also achieve the clamping of welding guns of different models and sizes, thus improving applicability. In addition, the first clamping member is rotatably connected to the base assembly, which allows for the rotational connection between the clamping frame and the base assembly. This facilitates the adjustment of the angle between the clamping frame and the base assembly to accommodate the position of the welding torch. When the welding torch is used for welding, the front end of the welding torch is clamped by the torch clamp, and the rear end of the welding torch is clamped by this invention. By simultaneously clamping the front end and the rear end of the welding torch, the clamping distance of the welding torch is extended, forming a two-point clamping method, which enhances the stability of the welding torch. During the welding process, the dragging effect of the torch wire on the welding torch is reduced, ensuring the accuracy of the weld seam and improving the welding quality.

[0005] However, the aforementioned welding equipment requires the use of a movable trolley, which is separate from the steel structure. Therefore, it is difficult to control the distance between the welding torch and the steel structure, and the flatness of the weld is not accurately controlled. If the trolley and the steel structure are linked, the problem of difficult distance control can be effectively solved, but the connection method between the trolley and the steel structure is more complicated, and there is a possibility that the unevenness of the steel structure will cause the welding torch to deviate, which will also affect the welding quality.

[0006] Therefore, a new type of welding device for steel structure construction can be used to overcome the shortcomings of existing technologies. Summary of the Invention

[0007] The purpose of this invention is to solve the problems of poor welding stability and low welding quality in the prior art, and to propose a welding device for steel structure construction.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: A welding device for steel structure construction includes an I-beam, an auxiliary frame, and a welding torch, and also includes a clamp mounted on the auxiliary frame. The clamp consists of multiple first permanent magnet wheels rotatably mounted on an auxiliary frame, a limit module, a conversion module, an adjustment module, an installation module, and a flatness sensing module; The limiting module is used in conjunction with the auxiliary frame to limit the upper and lower positions of the auxiliary frame; the conversion module works with the flatness sensing module to switch states according to the flatness of the side of the I-beam, so as to avoid the influence of the side protrusion of the I-beam on the moving welding. The adjustment module is used to adjust the position of the welding torch to ensure that the welding torch is always in contact with the welding part of the I-beam and to ensure the pressure between the welding torch and the welding part of the I-beam; the installation module is used to install the welding torch, which works in conjunction with the adjustment module to maintain the continuity of the welding joint between the welding torch and the I-beam.

[0009] Preferably, the limiting module includes a first crossbeam, a second crossbeam, and a third crossbeam. The second crossbeam is fixedly connected to the auxiliary frame. The first crossbeam and the third crossbeam are fixedly connected by an L-shaped steel plate. The second crossbeam and the third crossbeam are connected by multiple first elastic telescopic rods. Multiple first pulleys are rotatably installed on the first crossbeam, the second crossbeam, and the third crossbeam. Each first pulley cooperates with an I-beam.

[0010] Preferably, the conversion module includes an electric actuator fixedly mounted on an auxiliary frame, a fourth crossbeam slidably mounted on the auxiliary frame, the telescopic end of the electric actuator being fixedly connected to the fourth crossbeam, and a plurality of second pulleys cooperating with I-beams being rotatably mounted on the fourth crossbeam.

[0011] Preferably, the adjustment module includes a frame fixedly mounted on an auxiliary frame, two coaxial shafts rotatably mounted on the frame, a rotating platform fixedly mounted between the two shafts, a clamp cooperating with the installation module rotatably mounted on the rotating platform, a first motor fixedly mounted on the rotating platform, the first motor penetrating and extending into the interior of the rotating platform, the drive end of the first motor being connected to the clamp via a gear set, and a rotating mechanism cooperating with one of the shafts being mounted on the auxiliary frame.

[0012] Preferably, the rotating mechanism includes a second motor fixedly mounted on an auxiliary frame, a worm gear fixedly mounted on the shaft, a worm gear meshing with the worm gear rotatably mounted on the auxiliary frame, and the drive end of the second motor being fixedly connected to the worm gear.

[0013] Preferably, the installation module includes a connecting rod clamped and fixed on a clamp, a rotating sleeve fixedly installed on the connecting rod, a crossbar sleeved on the rotating sleeve, the crossbar and the rotating sleeve being slidably connected and also rotatably connected, a vertical rod slidably installed on the top of the crossbar, the vertical rod and the crossbar being fixed by a first bolt, the welding torch and the vertical rod being snap-fitted together and fixed by a second bolt, a continuity holding mechanism cooperating with an I-beam being installed on the vertical rod, a first telescopic rod being fixedly installed on the shaft, and a docking mechanism being installed between the first telescopic rod and the crossbar.

[0014] Preferably, the continuity maintenance mechanism includes a third elastic telescopic rod fixedly installed at the end of the upright near the welding torch. A wheel frame is fixedly installed at the telescopic end of the third elastic telescopic rod. A second permanent magnet wheel is rotatably installed on the wheel frame. A motor is fixedly installed on the wheel frame. The drive end of the motor is fixedly connected to the second permanent magnet wheel. A vision sensor is fixedly installed on the wheel frame.

[0015] Preferably, the docking mechanism includes a second telescopic rod fixedly installed on the first telescopic rod, a magnetic sleeve fixedly installed on the second telescopic rod, and a disk that cooperates with the magnetic sleeve fixedly installed at one end of the crossbar near the second telescopic rod, the disk being held inside the magnetic sleeve.

[0016] Preferably, the flatness sensing module includes two sleeves fixedly mounted on an auxiliary frame. A square tube is slidably installed inside each of the two sleeves. The two sleeves are fixed to the corresponding square tubes by a third bolt. A rotating cylinder is rotatably installed at the end of each sleeve away from the corresponding square tube. A sliding rod is slidably installed on each of the two square tubes. A connecting block is fixedly installed on each of the two sliding rods. A shaft is rotatably installed between the two connecting blocks. A roller is fixedly installed at both ends of the shaft. A pressure sensing mechanism is installed between each of the two rollers, the two sliding rods, and the corresponding square tube.

[0017] Preferably, the pressure sensing mechanism includes a fixed frame fixedly mounted on a square tube, a pressure sensor cooperating with an electric actuator fixedly mounted on the fixed frame, a compression spring fixedly mounted on the sliding rod, and a pressure plate fixedly mounted on the end of the compression spring near the pressure sensor, the pressure plate abutting against the pressure sensor.

[0018] Compared with existing technologies, the advantages of this invention are: 1. When performing linear welding on I-beams, this welding device for steel structure construction uses a first permanent magnet wheel to attach the auxiliary frame to the side of the I-beam. The welding torch is then mounted on the auxiliary frame via other components. Installation is convenient and requires no other complex operations. With the use of a limit module, the auxiliary frame is limited to prevent it from deviating. The first elastic telescopic rod can automatically change the distance between the first and second crossbeams according to the thickness of the side of the I-beam, thus satisfying the clamping and limiting requirements for I-beams of different thicknesses.

[0019] 2. When performing linear welding on I-beams, the welding device used in this steel structure construction uses a flatness sensing module to monitor the flatness of the I-beam's side and transmits the monitored data to a conversion module. The conversion module then disengages the auxiliary frame from the side of the I-beam. At this point, the I-beam is clamped by the rollers on the third and first crossbeams, allowing for precise control of the welding torch's movement distance. This avoids the problem of uncontrollable welding torch displacement due to I-beam protrusions, resulting in higher welding precision.

[0020] 3. When performing linear welding on I-beams, this welding device for steel structure construction uses an adjustment module to control the displacement of the welding torch based on the distance between the auxiliary frame and the I-beam. Combined with the use of the installation module, it ensures that the welding pressure at the welding point between the welding torch and the I-beam remains constant, thereby improving the welding quality.

[0021] 4. When performing linear welding on I-beams, the welding device used in this steel structure construction uses a continuous holding mechanism to precisely control the position of the welding torch. This not only ensures the angle between the welding torch and the welding part of the I-beam, guaranteeing the uniformity of the weld, but also ensures that the welding torch remains at the original welding position when the auxiliary frame moves, ensuring the continuity of the welding. Attached Figure Description

[0022] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the structure of a welding device for steel structure building construction proposed in this invention; Figure 2 for Figure 1 Detailed schematic diagram of the structure after rotation at a certain angle; Figure 3 for Figure 1 Detailed schematic diagram of the frontal planar structure; Figure 4 for Figure 2 Detailed schematic diagram of the structure after removing the I-beams; Figure 5 for Figure 4 Detailed schematic diagram of the structure after rotation at a certain angle; Figure 6 for Figure 4 Enlarged structural schematic diagram of the auxiliary frame, limit module, and conversion module; Figure 7 for Figure 4 Detailed schematic diagram of the structure after removing the limiting module and the conversion module and rotating it by a certain angle; Figure 8 for Figure 7 Detailed schematic diagram of the structure after rotation at a certain angle; Figure 9 for Figure 8 Detailed schematic diagram of the structure after rotation at a certain angle; Figure 10 for Figure 8 Detailed schematic diagram of the internal structure of the adjustment module; Figure 11 for Figure 10 Detailed schematic diagram of the enlarged structure of the installation module; Figure 12 for Figure 11 Enlarged schematic diagram of the first telescopic rod and docking mechanism; Figure 13 for Figure 10 Detailed enlarged structural diagram of the auxiliary frame and flatness sensing module; Figure 14 for Figure 13 Detailed diagram of the enlarged structure of section A.

[0023] In the diagram: 1. I-beam, 2. Auxiliary frame, 3. Limiting module, 4. Conversion module, 5. Adjustment module, 6. Welding gun, 7. Installation module, 8. Flatness sensing module, 9. First permanent magnet wheel, 10. First crossbeam, 11. First elastic telescopic rod, 12. Electric push rod, 13. Second crossbeam, 14. Third crossbeam, 15. Fourth crossbeam, 16. Second elastic telescopic rod, 17. Rotating table, 18. Clamp, 19. First motor, 20. Worm gear, 21. Second motor, 22. Worm, 23. First telescopic rod, 24. Docking mechanism, 25. Crossbar, 26. Vertical rod, 27. Connecting rod, 28. Third elastic telescopic rod, 29. Second permanent magnet wheel, 30. Second telescopic rod, 31. Magnetic sleeve, 32. Sleeve, 33. Square tube, 34. Shaft, 35. Roller, 36. Connecting block, 37. Sliding rod, 38. Compression spring, 39. Fixing frame, 40. Pressure sensor. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Example 1: Refer to Figures 1-6 , Figures 13-14 A welding device for steel structure construction includes an I-beam 1, an auxiliary frame 2, and a welding torch 6, and also includes a clamp installed on the auxiliary frame 2; The fixture consists of multiple first permanent magnet wheels 9 rotatably mounted on the auxiliary frame 2, a limit module 3, a conversion module 4, an adjustment module 5, an installation module 7, and a flatness sensing module 8; The limit module 3 is used in conjunction with the auxiliary frame 2 to limit the upper and lower positions of the auxiliary frame 2; The limiting module 3 includes a first crossbeam 10, a second crossbeam 13, and a third crossbeam 14. The second crossbeam 13 is fixedly connected to the auxiliary frame 2. The first crossbeam 10 and the third crossbeam 14 are fixedly connected by an L-shaped steel plate. The second crossbeam 13 and the third crossbeam 14 are connected by multiple first elastic telescopic rods 11. Multiple first pulleys are rotatably installed on the first crossbeam 10, the second crossbeam 13, and the third crossbeam 14. Each first pulley cooperates with the I-beam 1.

[0026] The steps for installing the auxiliary frame 2 on the I-beam 1 are as follows: First, place the auxiliary frame 2 on the side of the I-beam 1, so that the first permanent magnet wheel 9 on the auxiliary frame 2 is in contact with the side of the I-beam 1. At this time, under the action of the first permanent magnet wheel 9, the auxiliary frame 2 will be attracted to the side of the I-beam 1. Then, move the auxiliary frame 2 upward, and pull the first crossbeam 10 during the movement, so that the distance between the second crossbeam 13 and the first crossbeam 10 is increased (at this time, the first pulley on the second crossbeam 13 is in contact with the side of the I-beam 1), ensuring that the two pulleys on the second crossbeam 13 and the first crossbeam 10 are in contact. The distance between the first pulleys is greater than the thickness of the side of the I-beam 1. Then, the auxiliary frame 2 is moved downward so that the first pulley on the third crossbeam 14 abuts against the top of the I-beam 1. Finally, the first crossbeam 10 is released, and under the action of the first elastic telescopic rod 11, the first pulley on the first crossbeam 10 abuts against the I-beam 1. At this time, the first pulleys on the first crossbeam 10, the second crossbeam 13, and the third crossbeam 14 clamp the I-beam 1 to form a stable system. Pushing the auxiliary frame 2 to move will drive the first permanent magnet wheel 9 to rotate and translate along the I-beam 1.

[0027] The conversion module 4 works in conjunction with the flatness sensing module 8 to switch states based on the flatness of the side of the I-beam 1, so as to avoid the impact of the side protrusion of the I-beam 1 on the moving welding. The conversion module 4 includes an electric push rod 12 fixedly installed on the auxiliary frame 2. A fourth cross frame 15 is slidably installed on the auxiliary frame 2. The telescopic end of the electric push rod 12 is fixedly connected to the fourth cross frame 15. Multiple second pulleys that cooperate with the I-beam 1 are rotatably installed on the fourth cross frame 15.

[0028] When the flatness sensing module 8 detects a protruding burr on the side of the I-beam 1, it transmits a signal to the electric push rod 12, controlling the extension end of the electric push rod 12 to extend. As the extension end of the electric push rod 12 extends, the fourth crossbeam 15 moves closer to the side of the I-beam 1 (initially, the second pulley on the fourth crossbeam 15 is separated from the side of the I-beam 1), causing the second pulley on the fourth crossbeam 15 to abut against the side of the I-beam 1. As the abutment pressure increases, the second pulley on the second crossbeam 13 will disengage from the side of the I-beam 1. At this time, the first pulley on the first crossbeam 10, the first pulley on the third crossbeam 14, and the second pulley on the fourth crossbeam 15 are used to clamp the I-beam 1. In this way, the auxiliary frame 2 moves along the edge of the I-beam 1, avoiding the protruding burrs on the side of the I-beam 1. (Since the second crossbeam 13 and the third crossbeam 14 are connected by the first elastic telescopic rod 11, in order to improve the stability of the compaction, it is necessary to control the extension of the electric push rod 12 to ensure that the extension of the first elastic telescopic rod 11 reaches its maximum value. In this way, the clamping of the first pulley on the first crossbeam 10, the first pulley on the third crossbeam 14, and the second pulley on the fourth crossbeam 15 on the I-beam 1 is more stable and there will be no tilting. If the first elastic telescopic rod 11 does not reach its maximum extension, under the action of the clamping reaction force, the first crossbeam 10 still has the tendency to move away from the I-beam 1. At this time, it will cause the entire auxiliary frame 2 to tilt, and the first crossbeam 10 and the first pulley on the first crossbeam 10 will also tilt, resulting in imbalance.) When the electric actuator 12 extends, the overall weight of the auxiliary frame 2 will be offset by the first elastic telescopic rod 11. In this way, the telescopic end of the electric actuator 12 does not need to bear the weight of the auxiliary frame 2. The purpose of setting the second elastic telescopic rod 16 is to distribute the gravity borne by the first elastic telescopic rod 11 when the auxiliary frame 2 is suspended, which can effectively reduce the probability of deformation of the first elastic telescopic rod 11.

[0029] The flatness sensing module 8 includes two sleeves 32 fixedly installed on the auxiliary frame 2. A square tube 33 is slidably installed inside each of the two sleeves 32. The two sleeves 32 and the corresponding square tubes 33 are fixed by a third bolt. A rotating cylinder is rotatably installed at the end of each of the two sleeves 32 away from the corresponding square tubes 33. A sliding rod 37 is slidably installed on each of the two square tubes 33. A connecting block 36 is fixedly installed on each of the two sliding rods 37. A shaft 34 is rotatably installed between the two connecting blocks 36. A roller 35 is fixedly installed at both ends of the shaft 34. A pressure sensing mechanism is installed between the two rollers 35, the two sliding rods 37 and the corresponding square tubes 33. The pressure sensing mechanism includes a fixed frame 39 fixedly mounted on a square tube 33, a pressure sensor 40 that cooperates with an electric push rod 12 fixedly mounted on the fixed frame 39, a compression spring 38 fixedly mounted on a sliding rod 37, and a pressure plate fixedly mounted on one end of the compression spring 38 near the pressure sensor 40, the pressure plate abutting against the pressure sensor 40.

[0030] How to detect protruding burrs: As the auxiliary frame 2 moves, the roller 35 will roll along the side of the I-beam 1. Once there is a protruding burr, the roller 35 will disengage from the side of the I-beam 1. At this time, the sliding rod 37 will slide on the square tube 33, causing the compression spring 38 to be compressed. The change in the elastic force of the compression spring 38 will be transmitted to the pressure sensor 40 by the pressure plate. When the protruding burr is detected on the side of the I-beam 1, the signal will be transmitted to the electric push rod 12 to control the operation of the electric push rod 12. The sleeve 32 and the square tube 33 are slidably connected and can be fixed by the third bolt. The operating time of the electric push rod 12 is controlled according to the elongation between the sleeve 32 and the square tube 33 (when the pressure sensor 40 detects pressure, the electric push rod 12 operates for a period of time. During this period, all the first permanent magnet wheels 9 have passed the protruding burrs, and the auxiliary frame 2 is still in a suspended state. This period of time is related to the elongation between the square tube 33 and the sleeve 32. The greater the elongation, the longer the operating time of the electric push rod 12).

[0031] Example 2: This example differs from Example 1 in that: (Refer to...) Figures 1-5 , Figures 7-12 The adjustment module 5 is used to adjust the position of the welding torch 6 to ensure that the welding torch 6 is always in contact with the welding part of the I-beam 1 and to ensure the contact pressure between the welding torch 6 and the welding part of the I-beam 1. The adjustment module 5 includes a frame fixedly mounted on the auxiliary frame 2. Two coaxial shafts are rotatably mounted on the frame. A rotating platform 17 is fixedly mounted between the two shafts. A clamp 18 that cooperates with the installation module 7 is rotatably mounted on the rotating platform 17. A first motor 19 is fixedly mounted on the rotating platform 17. The first motor 19 passes through and extends into the interior of the rotating platform 17. The drive end of the first motor 19 is connected to the clamp 18 through a gear set (used to drive the clamp 18 to operate, not to drive the clamp 18 to rotate; the first motor 19 driving the clamp 18 to operate is the existing structure, which will not be described in detail here). A rotating mechanism that cooperates with one of the shafts is mounted on the auxiliary frame 2. The rotating mechanism includes a second motor 21 fixedly mounted on the auxiliary frame 2, a worm gear 20 fixedly mounted on the shaft, and a worm 22 rotatably mounted on the auxiliary frame 2 that meshes with the worm gear 20. The drive end of the second motor 21 is fixedly connected to the worm 22.

[0032] After the auxiliary frame 2 is suspended in the air, the distance between the welding torch 6 on the auxiliary frame 2 and the I-beam 1 increases. This will cause the welding torch 6 to detach from the welding part of the I-beam 1. Therefore, it is necessary to change the position of the welding torch 6 to ensure that the welding torch 6 is in close contact with the weld. The specific operation is as follows: During the operation of the electric actuator 12, the pressure sensor 40 also transmits signals to the second motor 21. The drive end of the second motor 21 rotates, causing the worm gear 22 fixedly connected to it to rotate. The rotation of the worm gear 22 causes the worm wheel 20 meshing with it to rotate, thereby causing the shaft to rotate. The shaft causes the rotating table 17 to rotate, and then causes the mounting module 7 to rotate. The welding torch 6 is mounted on the mounting module 7, so the welding torch 6 will also rotate together, causing the welding torch 6 to move closer to the side of the I-beam 1 to prevent the welding torch 6 from detaching from the I-beam 1. However, there is a problem that the horizontal position of the welding torch 6 will change. Therefore, the horizontal position of the welding torch 6 needs to be changed by the continuous holding mechanism mentioned below.

[0033] Mounting module 7 is used to mount welding torch 6, and works in conjunction with adjustment module 5 to maintain the continuity of the welding joint between welding torch 6 and I-beam 1; The mounting module 7 includes a connecting rod 27 clamped and fixed on the clamp 18. A rotating sleeve is fixedly mounted on the connecting rod 27. A crossbar 25 is fitted on the rotating sleeve. The crossbar 25 and the rotating sleeve are slidably connected and also rotatably connected. A vertical rod 26 is slidably mounted on the top of the crossbar 25. The vertical rod 26 and the crossbar 25 are fixed together by a first bolt (a rotatable ball sleeve is mounted on the top of the crossbar 25. The vertical rod 26 is fixed to the ball sleeve by the first bolt. In this way, although the vertical rod 26 will rotate with the crossbar 25, the vertical rod 26 can freely change its angle due to the action of the ball sleeve. After the welding torch 6 is mounted on the vertical rod 26, the position of the vertical rod 26 is adjusted, and then it is fixed by the first bolt so that the welding torch 6 abuts against the welding point of the I-beam 1). The welding torch 6 and the vertical rod 26 are snap-fitted together and fixed by a second bolt. A continuity holding mechanism that cooperates with the I-beam 1 is mounted on the vertical rod 26. The rotation of the clamp 18 around the shaft will cause the connecting rod 27 to rotate, the connecting rod 27 will cause the crossbar 25 to rotate, the crossbar 25 will cause the vertical rod 26 to rotate, and the rotation of the vertical rod 26 will cause the welding torch 6 to rotate, thereby changing the distance between the welding torch 6 and the I-beam 1, so that the welding torch 6 is in contact with the weld.

[0034] The continuity maintenance mechanism includes a third elastic telescopic rod 28 fixedly installed on the end of the upright 26 near the welding torch 6. A wheel frame is fixedly installed on the telescopic end of the third elastic telescopic rod 28. A second permanent magnet wheel 29 is rotatably installed on the wheel frame. A motor is fixedly installed on the wheel frame. The motor drive end is fixedly connected to the second permanent magnet wheel 29. A vision sensor is fixedly installed on the wheel frame. The vision sensor is used to monitor the position of the welding torch 6 to ensure that the welding torch 6 is located at the end of the weld and to ensure the continuity of the weld. Changing the horizontal position of the welding torch 6: Under the action of the third elastic telescopic rod 28 and the second permanent magnet wheel 29, the second permanent magnet wheel 29 will always be in contact with the side of the I-beam 1. Then, the second permanent magnet wheel 29 is driven to rotate by the motor. The rotation of the second permanent magnet wheel 29 will drive the third elastic telescopic rod 28, the ball sleeve and the upright 26 to rotate around the crossbar 25, thereby changing the horizontal position of the welding torch 6 installed at the end of the upright 26 to ensure the continuity of the weld.

[0035] A first telescopic rod 23 is fixedly installed on the shaft, and a docking mechanism 24 is installed between the first telescopic rod 23 and the crossbar 25. The docking mechanism 24 includes a second telescopic rod 30 fixedly installed on the first telescopic rod 23, a magnetic sleeve 31 fixedly installed on the second telescopic rod 30, and a disk that cooperates with the magnetic sleeve 31 is fixedly installed at one end of the crossbar 25 near the second telescopic rod 30, and the disk is stuck inside the magnetic sleeve 31. Due to the different welding positions, the vertical and horizontal height requirements of the welding gun 6 are different. The horizontal position is adapted by adjusting the vertical rod 26 and the ball sleeve, while the height is adjusted by the second telescopic rod 30. The second telescopic rod 30 can be self-locking to form a fixed rod. By changing the length of the second telescopic rod 30, the bottom position of the crossbar 25 is changed, thereby changing the height of the vertical rod 26 and the welding gun 6 installed on the vertical rod 26. The magnetic sleeve 31 and the disk are used to facilitate the connection between the second telescopic rod 30 and the crossbar 25. The first telescopic rod 23 cooperates with the connecting rod 27 to support the crossbar 25. Since different operators use the clamp 18 to clamp the connecting rod 27 at different depths, the length of support for the crossbar 25 also needs to be different. Therefore, the first telescopic rod 23 is used to adapt to the length of support.

[0036] The specific operating steps of this device are as follows: Installation of auxiliary frame 2: First, place auxiliary frame 2 on the side of I-beam 1, so that the first permanent magnet wheel 9 on auxiliary frame 2 is in contact with the side of I-beam 1. At this time, under the action of the first permanent magnet wheel 9, auxiliary frame 2 will be attracted to the side of I-beam 1. Then, move auxiliary frame 2 upward, and pull the first crossbeam 10 during the movement, so that the distance between the second crossbeam 13 and the first crossbeam 10 is increased, ensuring that the distance between the two first pulleys on the second crossbeam 13 and the first crossbeam 10 is greater than the thickness of the side of I-beam 1. Next, move auxiliary frame 2 downward, so that the first pulley on the third crossbeam 14 abuts against the top of I-beam 1. Finally, release the first crossbeam 10, and under the action of the first elastic telescopic rod 11, the first pulley on the first crossbeam 10 abuts against I-beam 1. At this time, the first pulleys on the first crossbeam 10, the second crossbeam 13 and the third crossbeam 14 clamp I-beam 1 to form a stable system. Pushing auxiliary frame 2 to move will drive the first permanent magnet wheel 9 to rotate and move along I-beam 1. Burr detection and clamping mode switching: As the auxiliary frame 2 moves, the roller 35 will roll along the side of the I-beam 1. Once there is a burr, the roller 35 will disengage from the side of the I-beam 1. At this time, the sliding rod 37 will slide on the square tube 33, causing the compression spring 38 to be compressed. The change in the elastic force of the compression spring 38 will be transmitted to the pressure sensor 40 by the pressure plate. When the sensor detects that there is a burr on the side of the I-beam 1, it will transmit the signal to the electric push rod 12 to control the operation of the electric push rod 12. When the telescopic end of the electric push rod 12 extends, the fourth crossbeam 15 moves closer to the side of the I-beam 1, causing the second pulley on the fourth crossbeam 15 to abut against the side of the I-beam 1. As the abutment pressure increases, the second pulley on the second crossbeam 13 will disengage from the side of the I-beam 1. At this time, the first pulley on the first crossbeam 10, the first pulley on the third crossbeam 14, and the second pulley on the fourth crossbeam 15 will clamp the I-beam 1. In this way, the auxiliary frame 2 will move along the edge of the I-beam 1, avoiding the protruding burrs on the side of the I-beam 1. After all the first permanent magnet wheels 9 have passed through the protruding burrs, the electric push rod 12 is retracted. Welding torch 6 is aligned with the weld seam: During the operation of electric actuator 12, pressure sensor 40 also transmits signals to second motor 21. The drive end of second motor 21 rotates, causing worm gear 22 fixedly connected to it to rotate. Worm gear 22 rotates, causing worm wheel 20 meshing with it to rotate, thereby causing shaft to rotate. Shaft drives rotating table 17 to rotate. Rotating table 17 drives clamp 18 to rotate. Clamp 18 rotates around shaft, causing connecting rod 27 to rotate. Connecting rod 27 drives crossbar 25 to rotate. Crossbar 25 drives vertical rod 26 to rotate. Vertical rod 26 rotates, causing welding torch 6 to rotate, thereby changing the distance between welding torch 6 and I-beam 1, so that welding torch 6 is in contact with weld seam. Therefore, welding torch 6 will also rotate together, causing welding torch 6 to move closer to the side of I-beam 1, preventing welding torch 6 from separating from the welding part of I-beam 1. Under the action of the third elastic telescopic rod 28 and the second permanent magnet wheel 29, the second permanent magnet wheel 29 will always be in contact with the side of the I-beam 1. Then, the second permanent magnet wheel 29 is driven to rotate by the motor. The rotation of the second permanent magnet wheel 29 will drive the third elastic telescopic rod 28, the ball sleeve and the upright 26 to rotate around the crossbar 25, thereby changing the horizontal position of the welding gun 6 installed at the end of the upright 26 to ensure the continuity of the weld. To ensure a continuous weld, the adjustment of the welding torch 6 requires the synchronous operation of the second motor 21 and the motor itself.

[0037] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A welding device for steel structure construction, comprising an I-beam (1), an auxiliary frame (2), and a welding torch (6), characterized in that, It also includes clamps mounted on the auxiliary frame (2); The clamp consists of multiple first permanent magnet wheels (9) rotatably mounted on the auxiliary frame (2), a limiting module (3), a conversion module (4), an adjustment module (5), an installation module (7), and a flatness sensing module (8); The limiting module (3) is used in conjunction with the auxiliary frame (2) to limit the upper and lower positions of the auxiliary frame (2); the conversion module (4) works in conjunction with the flatness sensing module (8) to convert the state according to the flatness of the side of the I-beam (1) to avoid the influence of the side protrusion of the I-beam (1) on the moving welding. The adjustment module (5) is used to adjust the position of the welding torch (6) to ensure that the welding torch (6) is always in contact with the welding part of the I-beam (1) and to ensure the pressure of the welding torch (6) against the welding part of the I-beam (1); the installation module (7) is used to install the welding torch (6) and cooperates with the adjustment module (5) to maintain the continuity of the welding joint between the welding torch (6) and the I-beam (1).

2. The welding device for steel structure construction according to claim 1, characterized in that, The limiting module (3) includes a first crossbeam (10), a second crossbeam (13) and a third crossbeam (14). The second crossbeam (13) is fixedly connected to the auxiliary frame (2). The first crossbeam (10) and the third crossbeam (14) are fixedly connected by an L-shaped steel plate. The second crossbeam (13) and the third crossbeam (14) are connected by multiple first elastic telescopic rods (11). Multiple first pulleys are rotatably installed on the first crossbeam (10), the second crossbeam (13) and the third crossbeam (14). Each first pulley is matched with an I-beam (1).

3. The welding device for steel structure construction according to claim 1, characterized in that, The conversion module (4) includes an electric push rod (12) fixedly installed on an auxiliary frame (2). A fourth cross frame (15) is slidably installed on the auxiliary frame (2). The telescopic end of the electric push rod (12) is fixedly connected to the fourth cross frame (15). Multiple second pulleys that cooperate with the I-beam (1) are rotatably installed on the fourth cross frame (15).

4. The welding device for steel structure construction according to claim 1, characterized in that, The adjustment module (5) includes a frame fixedly installed on the auxiliary frame (2). Two coaxial shafts are rotatably installed on the frame. A rotating platform (17) is fixedly installed between the two shafts. A clamp (18) cooperating with the installation module (7) is rotatably installed on the rotating platform (17). A first motor (19) is fixedly installed on the rotating platform (17). The first motor (19) passes through and extends into the interior of the rotating platform (17). The drive end of the first motor (19) is connected to the clamp (18) through a gear set. A rotating mechanism cooperating with one of the shafts is installed on the auxiliary frame (2).

5. The welding device for steel structure construction according to claim 4, characterized in that, The rotating mechanism includes a second motor (21) fixedly mounted on an auxiliary frame (2), a worm gear (20) fixedly mounted on the shaft, and a worm (22) rotatably mounted on the auxiliary frame (2) that meshes with the worm gear (20). The driving end of the second motor (21) is fixedly connected to the worm (22).

6. The welding apparatus for steel structure construction according to claim 4, characterized in that, The installation module (7) includes a connecting rod (27) clamped and fixed on the clamp (18). A rotating sleeve is fixedly installed on the connecting rod (27). A crossbar (25) is sleeved on the rotating sleeve. The crossbar (25) and the rotating sleeve are slidably connected and also rotatably connected. A vertical rod (26) is slidably installed on the top of the crossbar (25). The vertical rod (26) and the crossbar (25) are fixed together by a first bolt. The welding torch (6) and the vertical rod (26) are snapped together and fixed together by a second bolt. A continuity holding mechanism that cooperates with the I-beam (1) is installed on the vertical rod (26). A first telescopic rod (23) is fixedly installed on the shaft. A docking mechanism (24) is installed between the first telescopic rod (23) and the crossbar (25).

7. The welding apparatus for steel structure construction according to claim 6, characterized in that, The continuity maintenance mechanism includes a third elastic telescopic rod (28) fixedly installed on the end of the upright (26) near the welding torch (6). A wheel frame is fixedly installed on the telescopic end of the third elastic telescopic rod (28). A second permanent magnet wheel (29) is rotatably installed on the wheel frame. A motor is fixedly installed on the wheel frame. The drive end of the motor is fixedly connected to the second permanent magnet wheel (29). A vision sensor is fixedly installed on the wheel frame.

8. The welding apparatus for steel structure construction according to claim 6, characterized in that, The docking mechanism (24) includes a second telescopic rod (30) fixedly installed on the first telescopic rod (23), a magnetic sleeve (31) fixedly installed on the second telescopic rod (30), and a disk that cooperates with the magnetic sleeve (31) is fixedly installed at one end of the crossbar (25) near the second telescopic rod (30), and the disk is stuck inside the magnetic sleeve (31).

9. The welding device for steel structure construction according to claim 3, characterized in that, The flatness sensing module (8) includes two sleeves (32) fixedly installed on the auxiliary frame (2). A square tube (33) is slidably installed inside each of the two sleeves (32). The two sleeves (32) and the corresponding square tubes (33) are fixed together by a third bolt. A rotating cylinder is rotatably installed at the end of each of the two sleeves (32) away from the corresponding square tube (33). A sliding rod (37) is slidably installed on each of the two square tubes (33). A connecting block (36) is fixedly installed on each of the two sliding rods (37). A shaft (34) is rotatably installed between the two connecting blocks (36). A roller (35) is fixedly installed at both ends of the shaft (34). A pressure sensing mechanism is installed between each of the two rollers (35), the two sliding rods (37) and the corresponding square tubes (33).

10. The welding apparatus for steel structure construction according to claim 9, characterized in that, The pressure sensing mechanism includes a fixed frame (39) fixedly mounted on a square tube (33), a pressure sensor (40) cooperating with an electric push rod (12) fixedly mounted on the fixed frame (39), a compression spring (38) fixedly mounted on the sliding rod (37), and a pressure plate fixedly mounted on one end of the compression spring (38) near the pressure sensor (40), the pressure plate abutting against the pressure sensor (40).

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