Welding workstation for T-shaped steel

Abstract

The invention relates to the technical field of welding workstations, and provides a welding workstation for T-shaped steel, which realizes control of centrifugal force through rotation and creates an environment for bearing the centrifugal force for a welding pool so as to ensure the adhesion contact effect of the welding pool between a bottom flat steel belt and a vertical steel belt and improve the welding quality of the T-shaped steel. The welding device is more reasonable in structural design and better in practicability, the welding efficiency is improved, the welding device comprises a workbench, a bottom flat steel belt and a vertical steel belt, and further comprises a main body frame and a center welding system, the workbench comprises a rotating frame, three clamping assemblies are rotationally connected into the rotating frame, and the clamping assemblies are used for relatively clamping and positioning the bottom flat steel belt and the vertical steel belt; and three magnetic double-limiting assemblies are installed outside the rotating frame, the three magnetic double-limiting assemblies are matched with the three clamping assemblies correspondingly, the rotating frame is rotationally connected into the main body frame, and a first servo motor is installed outside the main body frame and used for driving the rotating frame to rotate.

Description

Technical Field

[0001] This invention relates to the field of welding workstation technology, and more specifically to a welding workstation for T-shaped steel. Background Technology

[0002] As is well known, T-shaped steel is a type of steel material in the shape of a T, which is made by hot rolling or welding. The welding operation requires first cutting it into strip steel plates, and then assembling and welding them together. To facilitate the welding operation of T-shaped steel, we propose a welding workstation for T-shaped steel.

[0003] A search revealed two patents: Chinese Patent Publication No. CN111515685A and Chinese Patent Publication No. CN114799628B, which respectively disclose a welding workstation for T-shaped steel and an intelligent welding workstation for T-shaped steel. The former is broadly described as including a worktable, a conveying module, a feeding module, a grinding module, a welding module, and an unloading module. The conveying module is mounted on the worktable and includes at least one conveying mechanism and tooling fixtures. The feeding module has a gripping mechanism. The welding module includes a welding torch body, a robotic arm, and auxiliary tooling. During use, the robotic arm moves the welding torch body to the welding area opposite the T-shaped steel, and the auxiliary tooling positions the workpiece to be welded. The T-shaped steel is fixed to the welding area. The unloading module is equipped with a pushing mechanism. The pushing mechanism drives the T-shaped steel in the loose state to detach from the tooling fixture and fall outside the worktable. The latter is roughly described as including a wing plate conveying assembly for horizontally transporting wing plates. The web plate is placed vertically on the wing plate. Web plate positioning assemblies for clamping the web plate are provided on both sides of the web plate. Two sets of web plate positioning assemblies are provided at both ends of the wing plate conveying assembly. A certain gap is provided between the web plate positioning assemblies. The working end of the welding device is directed towards the connection position between the wing plate and the web plate between the web plate positioning assemblies for welding. An arc-shaped baffle is provided on the opposite side of the web plate positioning assembly. The arc-shaped baffle blocks the working end of the web plate positioning assembly from the working end of the welding device.

[0004] Although both of the aforementioned existing technical solutions can be applied to the welding of T-shaped steel, the weld pool is subjected to the combined effects of arc force, gravity, surface tension, and the impact force of molten metal droplets on the weld pool during welding. Although the unit order of magnitude of these forces is small, their impact on the weld is not negligible. As for gravity, the main factors affecting it are only the weight of the object and gravitational acceleration. It can be seen that although gravity can cause the flow of the weld pool, the adjustability of its magnitude and direction and its impact on the weld are difficult to control. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a welding workstation for T-shaped steel. It controls centrifugal force through rotation and creates an environment that withstands centrifugal force for the weld pool, thereby ensuring the adhesion and contact effect between the bottom flat steel strip and the vertical steel strip, improving the welding quality of T-shaped steel. The structure design is more reasonable, the practicality is better, and the welding efficiency is also improved.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a welding workstation for T-shaped steel, comprising a worktable, a bottom flat steel strip, and a vertical steel strip, and further comprising a main frame and a central welding system. The worktable includes a rotating frame, within which three clamping assemblies are rotatably connected. The clamping assemblies are used for relative clamping and positioning of the bottom flat steel strip and the vertical steel strip. Three magnetic double-limiting assemblies are installed outside the rotating frame, and the three magnetic double-limiting assemblies are respectively matched with the three clamping assemblies. The rotating frame is rotatably connected within the main frame, and a first servo motor is installed outside the main frame. The machine is used to drive the rotation of the rotating frame. The central welding system includes a first rib support, a second rib support, and a second servo motor. The first rib support and the second rib support are both fixedly connected inside the rotating frame. The second servo motor is installed at the front end of the rotating frame. A linkage frame is slidably connected between the first rib support and the second rib support. A threaded rod is threadedly connected inside the linkage frame. The threaded rod is rotatably connected inside the rotating frame. The second servo motor is used to drive the rotation of the threaded rod. Three welding heads are installed outside the linkage frame. The welding heads are used for welding operations at the connection between the bottom flat steel strip and the vertical steel strip.

[0007] Preferably, the clamping assembly includes a rotating frame with three mounting ports. The three rotating frames are rotatably connected to the three mounting ports. Each of the three rotating frames has an embedding cavity for inserting the bottom flat steel strip and for inserting the vertical steel strip. Two first arc clamps and one second arc clamp are connected inside the rotating frame. The second arc clamp is located between the two first arc clamps. Three cylindrical columns are fixedly connected inside the rotating frame. Each of the three cylindrical columns is connected to a connecting block. Each of the three cylindrical columns is fitted with a connecting spring. The three connecting springs are fixedly connected to the three connecting blocks. The three connecting springs are all fixedly connected inside the rotating frame. Each of the three connecting blocks is fixedly connected to a positioning spring. Each of the three positioning springs is fixedly connected to a connecting block. The three connecting blocks are rotatably connected to the two first arc clamps and the one second arc clamp.

[0008] Preferably, the second arc clamp and the two first arc clamps are each provided with an end cavity, and each of the three end cavities is rotatably connected with a contact pressure roller that matches the vertical steel strip.

[0009] Preferably, each of the three magnetic dual-limiting components includes a swing frame, the three swing frames are respectively fixedly connected to the three rotating frames, each of the three swing frames is equipped with a first limiting plate and a second limiting plate, the three first limiting plates and the three second limiting plates are fixedly connected to the rotating frame, each of the three swing frames is provided with a mounting cavity, each of the three mounting cavities is equipped with an electromagnet, each of the three electromagnets is equipped with a first permanent magnet and a second permanent magnet, the three first permanent magnets and the three second permanent magnets are fixedly connected to the rotating frame, each of the three swing frames is connected with a limit spring, and each of the three limit springs is connected to the rotating frame.

[0010] Preferably, each of the three welding heads is equipped with a telescopic column, each of the three telescopic columns is slidably connected to a fixed cylinder, each of the three fixed cylinders is fixedly connected to the linkage frame, each of the three fixed cylinders is connected to a stabilizing spring, each of the three stabilizing springs is connected to the three telescopic columns, each of the three fixed cylinders is equipped with an electromagnet, each of the three telescopic columns is fixedly connected to an iron column block, and each of the three electromagnets is matched with the three iron column blocks.

[0011] Preferably, all three electromagnets are electrically connected to external leads. A rotating ring is fixedly connected to the rear end of the rotating frame, and a fixed ring is fixedly connected to the main frame. Two external electrode rings are provided inside the rotating ring, and two internal electrode rings are provided inside the fixed ring. The two internal electrode rings are respectively matched with the two external electrode rings. All three external leads are electrically connected to the two external electrode rings. A recessed groove is provided on the first prism support, and a through lead is provided in the recessed groove. The through lead is electrically connected to the two external electrode rings. Three first instantaneous conduction electrodes and three second instantaneous conduction electrodes are electrically connected to the through lead. A first contact electrode and a second contact electrode are installed in the linkage frame. All three electromagnets are electrically connected to the first contact electrode, and all three electromagnets are electrically connected to the second contact electrode.

[0012] Preferably, each of the three telescopic columns is fixedly connected to a first contact push frame and a second contact push frame, and both the first contact push frame and the second contact push frame are rotatably connected to rolling wheels.

[0013] Preferably, a cover is fixedly connected to the main frame, and a follower door is slidably connected to the cover. A closing push spring is provided between the follower door and the cover. A synchronizing ring and three counterweights are slidably connected to the rotating frame. Three connecting ropes are fixedly connected to the synchronizing ring, and the three connecting ropes are respectively connected to the three counterweights. A transmission ring is rotatably connected to the synchronizing ring. A drive frame is fixedly connected to the transmission ring. A traction rope is connected to the follower door, and the traction rope is connected to the transmission frame. The transmission frame is rotatably connected to the cover. A strip groove is opened in the transmission frame, and a transmission rod is provided in the strip groove. The transmission rod is fixedly connected to the drive frame. The transmission ring is slidably connected to the main frame, and a return spring is connected between the transmission ring and the main frame.

[0014] Preferably, a drive gear is fixedly connected to the output shaft of the first servo motor, the drive gear meshes with a transmission gear, and the transmission gear is fixedly connected to the rotating frame.

[0015] Preferably, each of the three rotating frames is provided with a through-side groove, and the three through-side grooves are respectively connected to the three embedded cavities. The second arc clamp and the two first arc clamps are provided with external insertion grooves to facilitate the auxiliary pushing of the first arc clamp and the second arc clamp.

[0016] Compared with the prior art, the present invention provides a welding workstation for T-shaped steel, which has the following beneficial effects: (1) In this invention, the design of the workbench provides a corresponding clamping platform for the T-shaped steel formed by the combination of the bottom flat steel strip and the vertical steel strip, and can drive the T-shaped steel to rotate, thereby enabling the T-shaped steel to be in a centrifugal state, which facilitates the creation of the centrifugal force required for subsequent welding of the molten pool.

[0017] (2) In this invention, through the design of the central welding system, the corresponding welding functional components are formed with T-shaped steel, and the corresponding workbench is designed to match. This enables the simultaneous welding of three T-shaped steels, while also enabling the clamping components to avoid the welding process.

[0018] (3) In this invention, through the design of the clamping component, while ensuring the combined positioning and clamping of the bottom flat steel strip and the vertical steel strip, the specific clamping point can be adjusted relative to the bottom flat steel strip and the vertical steel strip to facilitate the continuous welding operation of the welding head forming a welding trajectory at the contact point of the bottom flat steel strip and the vertical steel strip.

[0019] (4) In this invention, by equipping the magnetic double limiting component, the relative posture of the clamping component in the rotating frame can be limited, so that the welding point of the bottom flat steel strip and the vertical steel strip has a good welding angle with the welding operation head, and it is also convenient to adjust the welding points on both sides of the bottom flat steel strip and the vertical steel strip alternately, and to adjust the welding gap on both sides of the bottom flat steel strip and the vertical steel strip relative to the welding operation head. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural schematic diagram showing a partial cross-section of the present invention; Figure 2 For the present invention Figure 1 A magnified schematic diagram of the partial structure at point A in the middle; Figure 3 For the present invention Figure 1 A magnified view of the structure at point B in the middle; Figure 4 This is a partial cross-sectional three-dimensional structural diagram of the main frame, rotating frame, and first servo motor of the present invention. Figure 5 For the present invention Figure 4 A magnified schematic diagram of the structure at point C in the middle; Figure 6 For the present invention Figure 4 A magnified schematic diagram of the local structure at point D; Figure 7 This is a partial cross-sectional three-dimensional structural diagram of the main frame, rotating frame, and enclosure of the present invention. Figure 8 For the present invention Figure 7 A magnified schematic diagram of the structure at point C in the middle; Figure 9 This is a partial cross-sectional three-dimensional structural schematic diagram of the cooperation of the bottom flat steel strip, the vertical steel strip, and the first arc clamp of the present invention; Figure 10 For the present invention Figure 9 A magnified schematic diagram of the local structure at point D; Figure 11 For the present invention Figure 9 A magnified schematic diagram of the local structure at point E; Figure 12 This is a three-dimensional structural diagram of the entire invention; Figure 13 This is a three-dimensional structural diagram of the invention viewed from below. Figure 14 For the present invention Figure 13 A magnified schematic diagram of the local structure at point F; Figure 15 For the present invention Figure 13 A magnified schematic diagram of the local structure at point H; Figure 16 For the present invention Figure 13 A magnified schematic diagram of the local structure at point G; Figure 17 This is a three-dimensional structural diagram of the rotating frame, threaded rod, and counterweight of the present invention. Figure 18This is a three-dimensional structural diagram of the first prism support, the second prism support, and the linkage frame of the present invention. Figure 19 This is a schematic diagram of the welding head of the present invention welding a bottom flat steel strip and a vertical steel strip that are set at an incline.

[0021] In the diagram: 1. Bottom flat steel strip; 2. Vertical steel strip; 3. Main frame; 4. Rotating frame; 5. First servo motor; 6. First ridge support; 7. Second ridge support; 8. Second servo motor; 9. Linkage frame; 10. Threaded rod; 11. Welding head; 12. Rotating frame; 13. Mounting port; 14. Embedded cavity; 15. First arc clamp; 16. Second arc clamp; 17. Circular column; 18. Rotating connecting block; 19. Connecting spring; 20. Positioning spring; 21. Connecting block; 22. Contact pressure roller; 23. Swing frame; 24. First limiting plate; 25. Second limiting plate; 26. Mounting cavity; 27. Electromagnet; 28. First permanent magnet; 29. ​​Second permanent magnet; 30. Limiting tension spring; 31. Telescopic column; 32. Fixed cylinder; 33. Stabilizing spring 34. Electromagnet; 35. Iron pillar; 36. External lead wire; 37. Rotating ring; 38. Fixed ring; 39. External electrode ring; 40. Internal electrode ring; 41. Recessed groove; 42. Through lead wire; 43. First instantaneous electrode; 44. Second instantaneous electrode; 45. First contact electrode; 46. Second contact electrode; 47. First contact push frame; 48. Second contact push frame; 49. Rolling wheel; 50. Enclosure; 51. Follow-up door; 52. Closing push spring; 53. Synchronization ring; 54. Counterweight; 55. Connecting rope; 56. Transmission ring; 57. Drive frame; 58. Transmission frame; 59. Traction rope; 60. Strip groove; 61. Transmission rod; 62. Drive gear; 63. Transmission gear; 64. Through side groove; 65. External insertion groove. Detailed Implementation

[0022] 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.

[0023] For examples, please refer to Figures 1-19A welding workstation for T-shaped steel includes a workbench, a flat steel strip 1, and a vertical steel strip 2. It also includes a main frame 3 and a central welding system. The workbench includes a rotating frame 4, within which three clamping assemblies are rotatably connected. These clamping assemblies are used for the relative clamping and positioning of the flat steel strip 1 and the vertical steel strip 2. Each clamping assembly includes a rotating frame 12. The rotating frame 4 has three mounting openings 13, each rotatably connected to one of the three mounting openings 13. Each of the three rotating frames 12 has an embedding cavity 14 for inserting the flat steel strip 1 and for inserting the vertical steel strip 2. Two first arc clamps 15 and one second arc clamp 16 are connected within the rotating frame 12. The second arc clamp 16 is located between the two first arc clamps 15, and the first and second arc clamps 15 are oriented in opposite directions. Three cylindrical columns 17 are fixedly connected within the rotating frame 12. Each of the three cylindrical columns 17 is connected to a connecting block 18. Each of the three connecting springs 19 is fitted on a connecting block 18. Each of the three connecting springs 19 is fixedly connected to a connecting block 18. Each of the three connecting springs 19 is fixedly connected to a connecting frame 12. Each of the three connecting blocks 18 is fixedly connected to a positioning spring 20. Each of the three positioning springs 20 is fixedly connected to a connecting block 21. Each of the three connecting blocks 21 is rotatably connected to two first arc clamps 15 and one second arc clamp 16. Each of the second arc clamps 16 and the two first arc clamps 15 is provided with an end cavity. Each of the three end cavities is rotatably connected to a contact pressure roller 22 that matches the vertical steel strip 2. Through the design of the clamping assembly, while ensuring that the bottom flat steel strip 1 and the vertical steel strip 2 are combined and positioned, the specific clamping point can be adjusted relative to the bottom flat steel strip 1 and the vertical steel strip 2 to facilitate the continuous welding operation of the welding head 11 to form a welding trajectory at the contact point of the bottom flat steel strip 1 and the vertical steel strip 2.

[0024] It should be further explained that three magnetic double-limiting components are installed outside the rotating frame 4. These three magnetic double-limiting components are respectively matched with three clamping components. Each of the three magnetic double-limiting components includes a swing frame 23. The three swing frames 23 are fixedly connected to the three rotating frame frames 12. Each of the three swing frames 23 is equipped with a first limiting plate 24 and a second limiting plate 25. The three first limiting plates 24 and the three second limiting plates 25 are fixedly connected to the rotating frame 4. Each of the three swing frames 23 is provided with a mounting cavity 26. Each of the three mounting cavities 26 is equipped with an electromagnet 27. Each of the three electromagnets 27 is equipped with a first permanent magnet 28 and a second permanent magnet 29. The three first permanent magnets 28 and the three second permanent magnets 29 are fixedly connected to the rotating frame 4. Each of the three swing frames 23... Three limit springs 30 are connected to the rotating frame 4. The magnetic double-limiting assembly limits the relative posture of the clamping assembly within the rotating frame 4, ensuring a good welding angle between the weld joints of the bottom flat steel strip 1 and the vertical steel strip 2 and the welding head 11. This also facilitates the alternating adjustment of the weld joints on both sides of the bottom flat steel strip 1 and the vertical steel strip 2, and the adjustment of the weld gaps on both sides of the bottom flat steel strip 1 and the vertical steel strip 2 relative to the welding head 11. The rotating frame 4 is rotatably connected within the main frame 3. A first servo motor 5 is mounted outside the main frame 3. A drive gear 62 is fixedly connected to the output shaft of the first servo motor 5. The drive gear 62 meshes with a transmission gear 63, which is fixedly connected to the rotating frame 4. The first servo motor 5 is used to drive the rotation of the rotating frame 4. Through the design of the worktable, a corresponding clamping platform is provided for the T-shaped steel formed by the bottom flat steel strip 1 and the vertical steel strip 2, and it can drive the T-shaped steel to rotate, thus placing the T-shaped steel in a centrifugal state, facilitating the creation of the centrifugal force required for subsequent welding of the molten pool. The central welding system includes a first rib support 6, a second rib support 7, and a second servo motor 8. The first rib support 6 and the second rib support 7 are both fixedly connected inside the rotating frame 4. The second servo motor 8 is installed at the front end of the rotating frame 4. A linkage frame 9 is slidably connected between the first rib support 6 and the second rib support 7. A threaded rod 10 is internally threaded into the linkage frame 9, and the threaded rod 10 is rotatably connected inside the rotating frame 4. The second servo motor 8 is used to drive the rotation of the T-shaped steel. Driven by the rotation of the threaded rod 10, three welding heads 11 are mounted on the outside of the linkage frame 9. The welding heads 11 are used for welding operations at the connection between the bottom flat steel strip 1 and the vertical steel strip 2. Through the design of the central welding system, corresponding welding functional components are formed with matching T-shaped steel, and a matching design is formed with the worktable. This allows for simultaneous synchronous welding of three T-shaped steels while also providing a clamping assembly for obstacle avoidance. Each of the three welding heads 11 is equipped with a telescopic column 31, and each of the three telescopic columns 31 is slidably connected to a fixed cylinder 32. Each of the three fixed cylinders 32 is fixedly connected to the linkage frame 9. Each of the three fixed cylinders 32 contains a stabilizing spring 33, which is connected to the three telescopic columns 31 respectively. Each of the three fixed cylinders 32 contains an electromagnet 34.Each of the three telescopic columns 31 is fixedly connected to an iron column block 35. Three electromagnets 34 are respectively matched with the three iron column blocks 35. When the electromagnet 34 is energized, it generates an electromagnetic field, which acts on the iron column block 35. When the iron column block 35 is subjected to the force of the electromagnetic field, the stabilizing spring 33 is compressed. At this time, the telescopic column 31 will further insert itself relative to the fixed cylinder 32, and the corresponding welding head 11 will move closer to the linkage frame 9, that is, move relatively further away from the corresponding welded bottom flat steel strip 1 and vertical steel strip 2.

[0025] Furthermore, it should be noted that all three electromagnets 27 are electrically connected to external leads 36. A rotating ring 37 is fixedly connected to the rear end of the rotating frame 4, and a fixed ring 38 is fixedly connected to the main frame 3. Two external electrode rings 39 are arranged inside the rotating ring 37, and two internal electrode rings 40 are arranged inside the fixed ring 38. The two internal electrode rings 40 are respectively matched with the two external electrode rings 39. All three external leads 36 are electrically connected to the two external electrode rings 39. A recessed groove 41 is provided on the first prism support 6, and a through lead 42 is arranged in the recessed groove 41. The through lead 42 is electrically connected to the two external electrode rings 39. Three first instantaneous conduction electrodes 43 and three second instantaneous conduction electrodes 44 are electrically connected to the through lead 42. A first contact electrode is installed in the linkage frame 9. The first contact electrode 45 and the second contact electrode 46, and the three electromagnets 34 are all electrically connected to the first contact electrode 45 and the second contact electrode 46, forming an electrical assembly of the electromagnet 27 and the electromagnets 34. This ensures that when the electromagnet 27 and the electromagnets 34 rotate synchronously with the rotating frame 4, they can still maintain electrical communication with the outside world. The first contact push frame 47 and the second contact push frame 48 are fixedly connected to the outside of the three telescopic columns 31. The first contact push frame 47 and the second contact push frame 48 are rotatably connected to the rolling wheel 49. When the telescopic column 31 pushes the first arc clamp 15 or the second arc clamp 16, the first instantaneous electrode 43 and the second instantaneous electrode 44 respectively form electrical connections with the first contact electrode 45 and the second contact electrode 46. Contact is made to achieve electrical connection of electromagnet 34. Electromagnet 34 generates an electromagnetic field that electrically attracts iron column block 35, enabling telescopic column 31 to approach linkage frame 9. This also causes the corresponding welding head 11 to move away from the bottom flat steel strip 1 and vertical steel strip 2 in the welding target, thereby making the welding head 11 relatively far away from the first arc clamp 15 or the second arc clamp 16, thus facilitating the welding head 11 to pass over the corresponding first arc clamp 15 or second arc clamp 16. Cover 50 is fixedly connected to the main frame 3, and follower door 51 is slidably connected to cover 50. Closed push spring 52 is provided between follower door 51 and cover 50. Synchronization ring 53 and three counterweights 54 are slidably connected to rotating frame 4. Synchronization ring 53 is fixedly connected to three connecting rings 54. Three connecting ropes 55 are respectively connected to three counterweights 54. A synchronous ring 53 is rotatably connected to a transmission ring 56, and a drive frame 57 is fixedly connected to the transmission ring 56. A follower door 51 is connected to a traction rope 59, which is connected to a transmission frame 58. The transmission frame 58 is rotatably connected to the cover 50. A strip groove 60 is opened in the transmission frame 58, and a transmission rod 61 is installed in the strip groove 60. The transmission rod 61 is fixedly connected to the drive frame 57. The transmission ring 56 is slidably connected to the main frame 3, and a return spring is connected between the transmission ring 56 and the main frame 3. After the bottom flat steel belt 1 and the vertical steel belt 2 are installed relative to the worktable, when the rotating frame 4 rotates and rises to a certain speed, the three counterweights 54 will move away from each other under the action of centrifugal force.Three counterweights 54, spaced far apart, pull on three connecting ropes 55. These ropes 55, via a synchronizing ring 53, drive a transmission ring 56. The movement of the transmission ring 56 causes the drive frame 57 to move backward, which in turn causes the transmission frame 58 to rotate backward. The rearward rotation of the transmission frame 58 disables the traction of the traction rope 59, thus negating the pulling and opening action of the traction rope 59 on the follower door 51. Therefore, under the elastic action of the closing push spring 52, the follower door 51 moves relative to the cover 50, closing the gap in the cover 50. Each of the three rotating frame frames 12 has a through-slot 64, which connects to three embedded cavities 14, facilitating the removal of the bottom flat steel strip 1 and the vertical steel strip 2 after welding. The second arc clamp 16 and the two first arc clamps 15 are each equipped with an external insertion slot 65, facilitating the auxiliary pushing of the first arc clamp 15 and the second arc clamp 16.

[0026] In this embodiment, the first servo motor 5, the second servo motor 8, the electromagnet 27, and the electromagnet 34 are all commercially available conventional devices known to those skilled in the art. In this invention, we are simply using them without making any improvements to their structure or function. Their setting methods, installation methods, and electrical connection methods can be easily explained by those skilled in the art by following the instructions for use. Therefore, we will not elaborate on them here.

[0027] In summary, the working principle of this welding workstation for T-shaped steel is as follows: First, the welding workstation is placed at the desired location. Control circuits are then installed for the first servo motor 5 and the two inner electrode rings 40. Next, the second servo motor 8 is electrically connected to the outer electrode ring 39. A welding machine is installed for the welding head 11. The welding machine outputs the welding arc through the welding head 11. Both the first servo motor 5 and the second servo motor 8 are equipped with PLC controllers, which control the operation of the first servo motor 5 and the second servo motor 8. The first servo motor 5, when powered on, drives the rotation of the drive gear 62, which in turn drives the rotation of the transmission gear 63, which in turn drives the rotation of the rotating frame 4. The second servo motor 8, when powered on, drives the rotation of the threaded rod 10, which in turn drives the relative movement of the linkage frame 9 along the first rib support 6 and the second rib support 7, thereby achieving synchronous forward or backward movement of the three welding heads 11. The electromagnet 27 is equipped with an on / off controller, which enables the on / off control of the electromagnet 27 and the switching of the current direction. Due to the action of the return spring... When used, it will pull the transmission ring 56 forward. The forward-moving transmission ring 56 will drive the transmission rod 61 synchronously through the drive frame 57. The forward-moving transmission rod 61 will push the transmission frame 58 to rotate forward. The forward-rotating transmission frame 58 will pull the follower door 51 through the traction rope 59, so that the follower door 51 rotates and opens relative to the cover 50, exposing the loading and unloading opening on the cover 50, which facilitates the loading and unloading of the bottom flat steel strip 1 and the vertical steel strip 2 to be welded relative to the workbench. In actual use, the first arc clamp 15 and the second arc clamp 16 in the bottommost rotating frame 12 are rotated and stored, with the first arc clamp... Taking the rotation and storage of the first arc clamp 15 as an example, by inserting an external pry bar into the external insertion slot 65 on the first arc clamp 15, and rotating the pry bar by applying external force, the first arc clamp 15 is rotated and stored into the rotating frame 12. Similarly, the second arc clamp 16 is retracted into the rotating frame 12. After that, the bottom flat steel strip 1 can be placed into the bottommost embedding slot, and then the vertical steel strip 2 is also inserted into the embedding slot to help maintain the position of the vertical steel strip 2 relative to the bottom flat steel strip 1. By rotating the first arc clamp 15 and the second arc clamp 16 in the opposite direction by using the pry bar, the first arc clamp 15 and the second arc clamp 16 rotate out from the rotating frame 12 to clamp the vertical steel strip 2, as shown in the attached figure. Figure 11As shown in the figure, this is the state after the second arc clamp 16 rotates and retracts into the rotating frame 12. At this time, the positioning spring 20 enters the upper limit position, which can ensure the relative position of the second arc clamp 16 retracting into the rotating frame 12 is stable. When the second arc clamp 16 rotates out of the rotating frame 12, the positioning spring 20 will rotate and fall. During the rotation and fall, the positioning spring 20 will first pass through the extreme compression position and then enter the lower limit position. In the lower limit position, the positioning spring 20 will maintain the second arc clamp 16 in the pushed-out state relative to the rotating frame 12 to ensure the clamping effect of the second arc clamp 16 on the vertical steel strip 2. Similarly, the clamping operation of the bottom flat steel strip 1 and the vertical steel strip 2 in the other two rotating frames 12 is completed. After the operation is completed, the first servo motor 5 is started. The first servo motor 5 is powered on and runs to realize the rotation drive of the rotating frame 4. The rotation of the rotating frame 4 will drive the three rotating frames 12 to rotate synchronously, so that the three sets of bottom flat steel strip 1 and vertical steel strip 2 clamped and positioned in the rotating frame 12 are all in a centrifugal rotation state.

[0028] Furthermore, when the bottom flat steel strip 1 and the vertical steel strip 2 are clamped, the second servo motor 8 is powered on to drive the rotation of the threaded rod 10. Under the threaded transmission between the threaded rod 10 and the linkage frame 9, the welding head 11 moves to the front limit position or the rear limit position. This avoids collisions between the bottom flat steel strip 1 and the vertical steel strip 2 during positioning and installation, and also facilitates the opening of the welding head 11 for welding. Due to the elastic tension of the limit spring 30, the swing frame 23 is in an inclined state. In this state, the bottom flat steel strip 1 and the vertical steel strip 2, which cooperate with each other, are in an inclined state as a whole, as shown in the attached figure. Figure 19As shown, the weld between the inclined bottom flat steel strip 1 and the vertical steel strip 2 can be positionally matched relative to the welding head 11 to ensure the even distribution of the weld pool between the bottom flat steel strip 1 and the vertical steel strip 2 during the welding process, thus guaranteeing welding quality. Before arc welding, the first servo motor 5 should be used to rotate the rotating frame 4 into a suitable uniform rotation state to generate the corresponding centrifugal force. In this state, the follower door 51 will move and close relative to the cover 50. Then, the second servo motor 8 is powered on to realize the movement of the welding head 11. After the welding head 11 moves to the appropriate position on the bottom flat steel strip 1 and the vertical steel strip 2, the welding machine runs through the welding... The welding head 11 initiates a welding operation. During the welding process, when the welding head 11 moves and interferes with the first arc clamp 15, the corresponding rolling wheel 49 will contact the first arc clamp 15 or the second arc clamp 16 and push the first arc clamp 15 or the second arc clamp 16. During this process, the connecting spring 19 will undergo elastic deformation. When the first arc clamp 15 or the second arc clamp 16 is pushed to the point where the first contact electrode 45 and the second contact electrode 46 respectively contact the first contact push frame 47 and the second contact push frame 48, the electromagnet 34 is energized to generate an electromagnetic field acting on the iron column block 35, realizing the welding head 11 relative to the bottom flat steel strip 1 and As the vertical steel strip 2 moves away, the contact pushing action of the rolling wheel 49 on the first arc clamp 15 or the second arc clamp 16 becomes ineffective. Under the elastic reset action of the connecting spring 19, the corresponding first arc clamp 15 or second arc clamp 16 will undergo motion reset. After the first contact electrode 45 and the second contact electrode 46 have moved past the first contact push frame 47 and the second contact push frame 48 respectively, the electromagnetic field generated by the de-energized electromagnet 34 disappears. The welding head 11 resets and approaches the weld seam between the bottom flat steel strip 1 and the vertical steel strip 2, forming a continued welding of the bottom flat steel strip 1 and the vertical steel strip 2. This allows for the protection of the shielded areas of the first arc clamp 15 and the second arc clamp 16. To form a welding operation and ensure the continuity of the weld between the bottom flat steel strip 1 and the vertical steel strip 2, during this process, the pushing distance of the first arc clamp 15 or the second arc clamp 16 by the rolling wheel 49 should not be less than twice the width of the first arc clamp 15 or the second arc clamp 16. In order to provide continuity of the weld pool before the welding operation head 11 moves away from the weld and after resetting, the electrical contact distance between the first contact electrode 45 and the second contact electrode 46 and the first contact push frame 47 and the second contact push frame 48 respectively should be less than the width of the weld pool, and the smaller the better, provided that the welding operation head 11 can pass over the corresponding function of the first arc clamp 15 or the second arc clamp 16.

[0029] Furthermore, after the weld on one side between the bottom flat steel strip 1 and the vertical steel strip 2 is completed, the electromagnet 27 is energized to generate an electromagnetic field acting on the first permanent magnet 28 and the second permanent magnet 29. The swing frame 23 is subjected to force and rotates until the limit spring 30 moves through its limit stretch distance and enters another limit state, at which point the power supply to the electromagnet 27 is cut off. Thereafter, under the elastic action of the limit spring 30, the rotating frame 12 can be ensured to rotate into another tilt state, thereby allowing the weld gap on the other side between the bottom flat steel strip 1 and the vertical steel strip 2 to enter the welding operation head 11. The welding position is determined, and then the second servo motor 8 is powered on to move the welding head 11 for welding operations until the welding of the bottom flat steel strip 1 and the vertical steel strip 2 is completed. Finally, the first servo motor 5 is controlled to gradually decelerate until the rotating frame 4 is stationary. Afterward, the T-shaped steel formed by welding the bottom flat steel strip 1 and the vertical steel strip 2 can be removed relative to the rotating frame 12. Because the weld pool is in a centrifugal state during the welding process, the weld pool can form a better weld coverage relative to the bottom flat steel strip 1 and the vertical steel strip 2, ensuring the density of the weld pool and improving... The quality of the weld pool is improved, reducing welding defects such as bubbles. Considering the slender structure of T-shaped steel, which generally requires high structural strength but has lower requirements for straightness, the first arc clamp 15 and the second arc clamp 16 can achieve basic positioning between the bottom flat steel strip 1 and the vertical steel strip 2. For ease of explanation, the number of the first arc clamp 15 and the second arc clamp 16 is limited in this scheme. In practice, the number of the first arc clamp 15 and the second arc clamp 16 can be increased as appropriate according to the welding length and welding quality. As the number of arc clamps 16 increases, the number of first arc clamps 15 and second arc clamps 16 should also increase accordingly. If the T-shaped steel after welding requires high straightness accuracy, it can be post-processed by subsequent straightening. In order to facilitate the clamping operation of the bottom flat steel strip 1 and the vertical steel strip 2, local spot welding can be performed between the vertical steel strip 2 and the bottom flat steel strip 1 in advance to achieve the relative positioning between the bottom flat steel strip 1 and the vertical steel strip 2.

[0030] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A welding workstation for T-shaped steel, comprising a worktable, a bottom flat steel strip (1), and a vertical steel strip (2), characterized in that, It also includes a main frame (3) and a central welding system. The worktable includes a rotating frame (4), and three clamping components are rotatably connected inside the rotating frame (4). The clamping components are used for the relative clamping and positioning of the bottom flat steel strip (1) and the vertical steel strip (2). Three magnetic double-limiting components are installed outside the rotating frame (4). The three magnetic double-limiting components are respectively matched with the three clamping components. The rotating frame (4) is rotatably connected inside the main frame (3). A first servo motor (5) is installed outside the main frame (3). The first servo motor (5) is used for the rotation drive of the rotating frame (4). The central welding system includes a first prism support (6), a second prism support (7), and a second prism support (8). The servo motor (8), the first prism bracket (6) and the second prism bracket (7) are fixedly connected in the rotating frame (4). The second servo motor (8) is installed at the front end of the rotating frame (4). A linkage frame (9) is slidably connected between the first prism bracket (6) and the second prism bracket (7). A threaded rod (10) is threadedly connected in the linkage frame (9). The threaded rod (10) is rotatably connected in the rotating frame (4). The second servo motor (8) is used to drive the rotation of the threaded rod (10). Three welding heads (11) are installed outside the linkage frame (9). The welding heads (11) are used for welding operations at the connection between the bottom flat steel strip (1) and the vertical steel strip (2).

2. A welding workstation for T-shaped steel according to claim 1, characterized in that, The clamping assembly includes a rotating frame (12), and the rotating frame (4) is provided with three mounting ports (13). The three rotating frames (12) are rotatably connected to the three mounting ports (13). Each of the three rotating frames (12) is provided with an embedding cavity (14). The embedding cavity (14) is used for inserting the bottom flat steel strip (1) and for inserting the vertical steel strip (2). The rotating frame (12) is connected with two first arc clamps (15) and one second arc clamp (16). The second arc clamp (16) is located between the two first arc clamps (15). 2) Three circular light columns (17) are fixedly connected inside. Each of the three circular light columns (17) is connected to a connecting block (18). Each of the three circular light columns (17) is fitted with a connecting spring (19). Each of the three connecting springs (19) is fixedly connected to the three connecting blocks (18). Each of the three connecting springs (19) is fixedly connected inside the rotating frame (12). Each of the three connecting blocks (18) is fixedly connected to a positioning spring (20). Each of the three positioning springs (20) is fixedly connected to a connecting block (21). Each of the three connecting blocks (21) is rotatably connected to two first arc clamps (15) and one second arc clamp (16).

3. A welding workstation for T-shaped steel according to claim 2, characterized in that, The second arc clamp (16) and the two first arc clamps (15) are all provided with end cavities, and each of the three end cavities is rotatably connected with a contact pressure roller (22) that matches the vertical steel strip (2).

4. A welding workstation for T-shaped steel according to claim 3, characterized in that, Each of the three magnetic double-limiting components includes a swing frame (23). The three swing frames (23) are fixedly connected to the three rotating frames (12). Each of the three swing frames (23) is equipped with a first limiting plate (24) and a second limiting plate (25). The three first limiting plates (24) and the three second limiting plates (25) are fixedly connected to the rotating frame (4). Each of the three swing frames (23) is provided with an installation cavity (26). Each of the three installation cavities (26) is equipped with an electromagnet (27). Each of the three electromagnets (27) is equipped with a first permanent magnet (28) and a second permanent magnet (29). The three first permanent magnets (28) and the three second permanent magnets (29) are fixedly connected to the rotating frame (4). Each of the three swing frames (23) is connected with a limiting spring (30). The three limiting springs (30) are connected to the rotating frame (4).

5. A welding workstation for T-shaped steel according to claim 4, characterized in that, Each of the three welding work heads (11) is equipped with a telescopic column (31), and each of the three telescopic columns (31) is slidably connected to a fixed cylinder (32). Each of the three fixed cylinders (32) is fixedly connected to the linkage frame (9). Each of the three fixed cylinders (32) is connected to a stabilizing spring (33), and each of the three stabilizing springs (33) is connected to the three telescopic columns (31). Each of the three fixed cylinders (32) is equipped with an electromagnet (34), and each of the three telescopic columns (31) is fixedly connected to an iron column block (35). Each of the three electromagnets (34) is matched with the three iron column blocks (35).

6. A welding workstation for T-shaped steel according to claim 5, characterized in that, All three electromagnets (27) are electrically connected to external leads (36). A rotating ring (37) is fixedly connected to the rear end of the rotating frame (4). A fixed ring (38) is fixedly connected to the main frame (3). Two external electrode rings (39) are provided inside the rotating ring (37). Two internal electrode rings (40) are provided inside the fixed ring (38). The two internal electrode rings (40) are respectively matched with the two external electrode rings (39). All three external leads (36) are electrically connected to the two external electrode rings (39). The first prism support (6) has an opening. A recessed groove (41) is provided with a through lead (42), which is electrically connected to two outer electrode rings (39). Three first instantaneous electrodes (43) and three second instantaneous electrodes (44) are electrically connected to the through lead (42). A first contact electrode (45) and a second contact electrode (46) are installed in the linkage frame (9). All three electromagnets (34) are electrically connected to the first contact electrode (45) and all three electromagnets (34) are electrically connected to the second contact electrode (46).

7. A welding workstation for T-shaped steel according to claim 6, characterized in that, Each of the three telescopic columns (31) is fixedly connected to a first contact push frame (47) and a second contact push frame (48), and both the first contact push frame (47) and the second contact push frame (48) are rotatably connected to a rolling wheel (49).

8. A welding workstation for T-shaped steel according to claim 7, characterized in that, A cover (50) is fixedly connected to the main frame (3), and a follower door (51) is slidably connected to the cover (50). A closing push spring (52) is provided between the follower door (51) and the cover (50). A synchronizing ring (53) and three counterweights (54) are slidably connected to the rotating frame (4). Three connecting ropes (55) are fixedly connected to the synchronizing ring (53). The three connecting ropes (55) are respectively connected to the three counterweights (54). A transmission ring (56) is rotatably connected to the synchronizing ring (53). The transmission ring (56) is fixedly connected to the synchronizing ring (53). A drive frame (57) is fixedly connected to the drive frame (57), a follow-up door (51) is connected to a traction rope (59), the traction rope (59) is connected to a transmission frame (58), the transmission frame (58) is rotatably connected to the enclosure (50), a strip groove (60) is provided in the transmission frame (58), a transmission rod (61) is provided in the strip groove (60), the transmission rod (61) is fixedly connected to the drive frame (57), the transmission ring (56) is slidably connected to the main frame (3), and a return spring is connected between the transmission ring (56) and the main frame (3).

9. A welding workstation for T-shaped steel according to claim 8, characterized in that, A drive gear (62) is fixedly connected to the output shaft of the first servo motor (5), and the drive gear (62) meshes with a transmission gear (63), which is fixedly connected to the rotating frame (4).

10. A welding workstation for T-shaped steel according to claim 9, characterized in that, Each of the three rotating frames (12) is provided with a through side groove (64), and the three through side grooves (64) are respectively connected to the three embedded cavities (14). The second arc clamp (16) and the two first arc clamps (15) are provided with an external insertion groove (65) to facilitate the auxiliary pushing of the first arc clamp (15) and the second arc clamp (16).

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