Modularized combined type steel casing welding device

Abstract

The invention provides a modular combined type steel casing welding device, belongs to the technical field of welding fixing devices, and solves the technical problems that an existing steel casing welding device is poor in accuracy during butt welding, and the welding quality of the inner wall of a steel casing is poor after welding. A modular combined type steel casing welding device comprises two side frames, a guide rod is fixedly connected between the two side frames, and the outer wall of the guide rod is slidably connected with a supporting and rotating assembly. According to the steel casing welding device, the supporting and rotating assembly is movably arranged on the surface of the side frame, so that the supporting and rotating assembly can drive the two sections of steel casing bodies to synchronously rotate on the two sides, the rotating accuracy of the two sections of steel casing bodies during welding is ensured, and a welding gun can conveniently and accurately weld the steel casing bodies with the two ends in butt joint; and the inner polishing assembly is modularly arranged in the steel casing body, so that the inner polishing assembly polishes a welding seam on the inner wall of the welded steel casing, and the welding effect of the steel casing is ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of welding fixing devices and relates to a steel casing welding device, in particular to a modular combined steel casing welding device. Background Art

[0002] During the fabrication process, steel casings are typically welded together to secure the various structures after forming the various structures. To improve stability and prevent deformation of the steel casing due to improper operation during the welding process, welding equipment is typically used. However, most current welding equipment is unable to position the steel casing, causing it to easily vibrate and causing inconvenience during the welding operation.

[0003] After searching, a welding device for steel casing disclosed in Chinese patent documents [Application number: CN202411380498.9; Publication number: CN119260248A], this welding device for steel casing includes a box body with an inlet and an outlet, and also includes a welding mechanism arranged in the box body; the welding mechanism includes an installation box, a welding head, a purification box, a piston cylinder, a piston block, and a drive assembly for driving the piston block to reciprocate along the length direction of the piston cylinder; the installation box is fixedly connected to the box body; the welding head, the purification box, and the piston cylinder are all fixedly connected to the installation box; the piston block is slidably connected to the piston cylinder; a water inlet pipe and a water outlet pipe are provided on the piston cylinder; the two ends of the water inlet pipe are respectively connected to the piston cylinder and the purification box; the water outlet pipe is connected to the piston cylinder, and the water outlet pipe is communicated with the piston cylinder.

[0004] Although the steel casing welding device disclosed in this patent can cool the weld during welding, the steel casing is welded by butting two sections of steel casing. When the two sections of steel casing are butt-welded, the steel casing is easily offset during the welding process due to stability, which seriously affects the welding effect of the steel casing. The current steel casing welding device is unable to grind the inner wall of the steel casing weld, resulting in poor welding quality inside the steel casing, affecting the installation effect and internal circulation effect of the steel casing. Summary of the Invention

[0005] The purpose of the present invention is to address the above-mentioned problems in the existing technology and propose a modular combined steel casing welding device. The technical problem to be solved by this invention is: how to achieve the accuracy of steel casing during butt welding and improve the welding quality of the inner wall of the steel casing after welding.

[0006] The purpose of the present invention can be achieved through the following technical solutions: A modular combined steel casing welding device includes two side frames, a guide rod is fixedly connected between the two side frames, and the outer wall of the guide rod is slidably connected to a support assembly, the support assembly includes two moving blocks, and the two moving blocks are parallel and slidably connected to the outer wall of the guide rod. The surfaces of the moving blocks are slidably connected to two adjustment seats, and the tops of the adjustment seats are rotatably connected to support wheels; The outer side of one of the moving blocks is fixedly connected to a side plate, and one side of the side plate is rotatably connected to a rotating rod, which is driven by a driving motor. The outer wall of the rotating rod is fixedly connected to a gear column, and the surface of the gear column is meshed with two end gears, and the two end gears are correspondingly arranged on one side of the two supporting wheels; A steel casing body is fitted and connected between the two supporting wheels, and the two steel casing bodies are respectively located above the two moving blocks, and the connection seam of the steel casing body is located between the two moving blocks; The interior of the steel casing body is connected to an internal grinding assembly, and a limiting welding unit is provided on the outside of the steel casing body, and the limiting welding unit is located between the two moving blocks; The inner grinding assembly includes two symmetrically arranged mobile grinding units, and the two mobile grinding units are detachably connected; The mobile grinding unit includes a mounting plate, which is movably mounted inside the steel casing body. A plurality of telescopic rods are slidably connected to the surface of the mounting plate. The plurality of telescopic rods are equidistantly arranged in a ring on the surface of the mounting plate. A connecting seat is fixedly mounted on the outer end of the telescopic rod, and a fitting wheel is rotatably connected to the upper portion of the connecting seat. The surface of the mounting plate is fixedly connected to a threaded rod, the outer wall of the threaded rod is sleeved with a gear plate, the surface of the gear plate is fitted with a locking nut, and the locking nut is threadedly connected to the outer wall of the threaded rod; The gear plate has a plurality of adjustment slots equidistantly formed therein, and the plurality of adjustment slots are correspondingly arranged with respect to the plurality of telescopic rods, and the inner walls of the plurality of adjustment slots are slidably connected to slide posts, and the slide posts are fixedly mounted on the surface of the telescopic rods; A plurality of adjustment grooves are arranged on the surface of the gear plate in a radial arc structure.

[0007] The working principle of the present invention is: when in use, the two adjustment seats on the surface are driven to adjust their positions through the rotation of the bidirectional screw rod, thereby realizing the support of the bottom of the steel casing body. During welding, the first section of the steel casing body is installed on the supporting wheel above the moving block on one side, ensuring the supporting and rotating effect of the supporting wheel on the bottom of the steel casing body. After the first section of the steel casing body is moved to the appropriate position, one of the mobile grinding units is set inside the first section of the steel casing body through the mounting plate, and the gear plate is rotated in the surface of the mounting plate. Under the action of the adjusting groove set on the surface of the mounting plate, the adjusting groove drives the telescopic rod to extend and retract. , the telescopic rod drives the fitting wheel to fit the inner wall of the first section of the steel casing body, thereby realizing the installation effect of the mobile grinding unit inside the steel casing body on one side. After the mounting plate drives the adjusting slot to move to the appropriate position, the gear plate is fixed by the locking nut to ensure the position stability of the gear plate. After one of the mobile grinding units is fixed inside the first section of the steel casing body, the other mobile grinding unit is docked and installed through the insertion rod and the insertion cavity to ensure the concentric effect of the two mobile grinding units, and the connecting plate is installed on the surface of the insertion rod through the threaded hole and the mounting screw, so that the connecting frame drives the grinding wheel position The second section of the steel casing body is mounted between the two mobile grinding units, and at the same time, the second section of the steel casing body is supported and rotated above the moving block on the other side, and the second section of the steel casing body is sleeved on the outer wall of the other mobile grinding unit, so that the two mobile grinding units are respectively installed on the inner walls of the two steel casing bodies, thereby realizing the pulling connection between the two steel casing bodies by the inner grinding assembly. During welding, the adjusting plate is driven downward by the first screw rod, so that the adjusting plate drives the welding gun to weld above the connecting seam of the steel casing body. At the same time, under the effect of the rotation of the two steel casing bodies driven by the supporting wheel, the two mobile grinding units are synchronized with the steel casing bodies. The tube body rotates, so that the connecting frame always rotates and grinds the bottom inner wall of the steel casing body downward under the action of gravity, which is beneficial to improving the welding quality of the steel casing body after welding, and ensures the internal fluidity of the steel casing body after welding. After the welding of the steel casing body is completed, the servo motor is set to drive one of the fitting wheels to rotate, so that the fitting wheel can fit and move on the inner wall of the steel casing body, thereby realizing the self-separation of the internal grinding assembly after the welding of the steel casing body, facilitating the separation of the modular internal grinding assembly, and realizing the combined use effect of the device.

[0008] A connecting rod is fixedly connected between the two parallel supporting wheels, and the connecting rod is rotatably connected to the top of the adjustment seat, and the connecting rod is vertically distributed with the bidirectional screw rod; A through hole for accommodating the guide rod is provided inside the moving block.

[0009] By adopting the above structure, under the action of the connecting rod, the transmission of the gear column and the end gear can realize the synchronous rotation of the two supporting wheels above the two connecting blocks, ensuring the synchronous rotation effect of the two sections of steel casing bodies during welding, ensuring the welding accuracy, and the structure is simple and the transmission effect is good. Moreover, by sliding the moving block on the outer wall of the guide rod, it is convenient for the user to adjust the supporting wheel position according to the welding requirements, ensuring the welding requirements of the supporting wheel for different steel casings, and improving the user's convenience.

[0010] The output end of the driving motor is fixedly connected to a rotating rod, and the driving motor is fixedly mounted on one side of the side plate; The center of the supporting wheel coincides with the center of the end gear.

[0011] By adopting the above structure, under the rotation action of the driving motor and the rotating rod, the rotating rod can drive the gear column to rotate stably. Through the meshing connection between the gear column and the end gear, when the adjustment seat drives the end gear to move to any position, the end gear remains meshed on one side of the gear column, ensuring the transmission effect of the gear column and the end gear, and through the concentric arrangement of the end gear and the supporting wheel, the drive of the end gear and the supporting wheel is realized, which makes it convenient for the supporting wheel to drive the surface of the steel casing body to rotate at the bottom, realizing the rotation effect of the steel casing body during welding, and ensuring the comprehensiveness of the welding of the steel casing body.

[0012] A handle is fixedly connected to the surface of the gear plate; A servo motor is fixedly connected to one side of one of the connecting seats, and a fitting wheel is fixedly connected to the output end of the servo motor.

[0013] The above structure is adopted, by arranging a handle on the surface of the gear plate, which makes it convenient for the user to rotate the gear plate through the handle. Under the action of the locking nut, the fixed effect of the gear plate after the rotation in position is ensured. By arranging a servo motor on one side of one of the connecting seats, the servo motor can drive one of the fitting wheels to rotate, which makes it convenient for the fitting wheel to fit the inner wall of the steel casing body, thereby realizing the self-separation of the internal grinding assembly after the steel casing is welded, and ensuring the working effect of the internal grinding assembly.

[0014] The outer wall of one of the mounting plates is fixedly connected to a plug rod, and the outer wall of the other mounting plate is fixedly connected to a plug cavity capable of accommodating the plug rod; A threaded hole is provided inside the insertion rod, and a through hole is provided inside the insertion cavity corresponding to the threaded hole.

[0015] With the above structure, an elastic limit plate is provided at the front end of the insertion rod, and grooves are provided on both sides of the insertion cavity, which ensures the connection effect of the insertion rod inside the insertion cavity, facilitates the precise installation of the two mobile grinding units, and realizes the pulling effect between the steel casing bodies at both ends. Moreover, through the setting of the insertion rod and the through hole, the two symmetrically arranged mobile grinding units can be installed with a connecting plate through the threaded hole after connection, thereby improving the connection flexibility of the mobile grinding unit.

[0016] A connecting plate is installed on the surface of the insertion rod, and the internal thread of the connecting plate is connected to a mounting screw, and the mounting screw is threadedly connected to the inner wall of the threaded hole. A connecting frame is rotatably connected to the bottom of the connecting plate, and a grinding wheel is rotatably connected to the bottom of the connecting frame, and the grinding wheel is fitly connected to the inner wall of the steel casing body.

[0017] By adopting the above structure, the connecting plate is connected to the surface of the plug rod, and the seat of the connecting frame is rotated at the bottom of the connecting plate, so that the connecting frame drives the grinding wheel at the bottom to fit the inner wall of the steel casing body, and the mobile grinding unit is installed between the two sections of the steel casing body by the fitting wheel, so that the steel casing body synchronously drives the mobile grinding unit to rotate when it rotates, so that the connecting frame always rotates and grinds the bottom inner wall of the steel casing body downward under the action of gravity, which is beneficial to improving the welding quality of the steel casing body after welding and ensuring the internal flowability of the steel casing body.

[0018] The position limiting welding unit includes a sliding rod, which is fixedly connected between the two side frames. The outer wall of the sliding rod is slidably connected to an adjustment block, and the top of the adjustment block is rotatably connected to a first screw rod, the top of the first screw rod is rotatably mounted with a top plate, and the first screw rod is driven by a bidirectional motor; The outer wall of the first screw rod is connected to an adjustment plate through a ball nut, and the bottom end of the adjustment plate is fixedly connected to a welding gun, and the bottom end of the welding gun is fittedly connected to the top of the connection seam of the steel casing body.

[0019] By adopting the above structure and setting the limiting welding unit, the first screw rod can drive the adjusting plate to adjust the height, so that the adjusting plate can drive the welding gun at the bottom to weld the surface of the connecting seam of the steel casing body, thereby ensuring the connection accuracy of the welding gun to the connecting seam of the steel casing body, and by sliding the limiting welding unit on the surface of the sliding rod, the limiting welding unit can accurately weld the two sections of the steel casing body between the two moving blocks.

[0020] Four limit plates are rotatably connected on both sides of the adjustment plate, and the limit plates on both sides are located on both sides of the connection seam of the steel casing body; The four limit plates are rotatably connected via a rotating shaft, and the four limit plates are arranged in a diamond structure; A side rod is connected between the limiting plates on both sides, and the side rod is located outside the first screw rod.

[0021] By adopting the above structure, four limit plates are set on both sides of the adjusting plate. Under the action of the four limit plates in a diamond structure, when the adjusting plate drives the top rotating shaft to move downward, the four limit plates are stably limited on the outer wall of the steel casing body. The limit plates on both sides are stably limited on both sides of the connection seam of the steel casing body, avoiding the deviation of the steel casing body during welding work and ensuring the welding accuracy and welding quality of the steel casing.

[0022] The top end of the top plate is fixedly connected to a bidirectional motor, and the output end of the bidirectional motor is fixedly connected to a first screw rod; The interior of the adjustment plate is slidably connected with a vertical rod, which is fixedly mounted on the bottom end of the top plate, and is arranged in parallel with the first screw rod.

[0023] By adopting the above structure and setting up a bidirectional motor, the first screw rod can be stably driven, and under the action of the vertical rod and the first screw rod, the adjustment plate can be stably raised and lowered below the top plate, so that the adjustment plate can drive the welding gun at the bottom to accurately weld the surface of the steel casing.

[0024] The inner part of the moving block is rotatably connected to a bidirectional screw rod, and the outer wall of the bidirectional screw rod is connected to two adjustment seats through a ball nut, and the bottom end of the adjustment seat is slidably connected to the inner wall of the moving block; One end of the bidirectional screw rod is fixedly connected to an operating end, and the operating end is located outside the moving block.

[0025] By adopting the above structure and setting a bidirectional screw, the user can drive the bidirectional screw to rotate through the operating end externally, so that the two adjustment seats are driven to move synchronously above the moving block, thereby realizing the distance adjustment between the two adjustment seats, making it convenient for the two adjustment seats to drive the supporting wheels to limit and rotate steel casings of different diameters.

[0026] Compared with the prior art, the modular combined steel casing welding device of the present invention has the following advantages: 1. In the present invention, a rotating assembly is movably arranged on the surface of the side frame, so that the rotating assembly can drive the two sections of steel casing bodies on both sides to rotate synchronously, thereby ensuring the rotation accuracy of the two sections of steel casing bodies during welding, and facilitating the welding gun to accurately weld the steel casing bodies butted at both ends. In addition, an internal grinding assembly is modularly arranged inside the steel casing body, so that the internal grinding assembly grinds the weld seam of the inner wall of the welded steel casing to ensure the welding effect of the steel casing. In addition, a limiting welding unit is provided on the outside of the steel casing, so that the steel casing can achieve external synchronous limiting during welding. Through such an arrangement, modular and combined flexible installation of the device is realized, which is convenient for accurately welding the two-section steel casing to avoid offset and ensure welding quality.

[0027] 2. In the present invention, through the setting of the inner grinding assembly, under the action of the adjusting grooves provided on the surface of the mounting plate, the adjusting grooves are radially arranged, so that the adjusting grooves drive the telescopic rod to extend and retract, and the telescopic rod drives the fitting wheel to fit the inner wall of the first section of the steel casing body, thereby realizing the installation of the mobile grinding unit inside the steel casing body with different inner walls in diameter, and fixing the gear plate by the locking nut to ensure the position stability of the gear plate, thereby realizing the pulling connection between the two steel casing bodies by the inner grinding assembly, and at the same time, under the installation action of the connecting plate, the connecting frame drives the grinding wheel to be located between the two mobile grinding units, so that the grinding wheel always grinds the bottom inner wall of the steel casing body under the action of gravity, thereby realizing the welding and grinding effect of the steel casing body when it rotates.

[0028] 3. In the present invention, the two mobile grinding units are detachably connected to each other, so that the two mobile grinding units can be respectively installed on the inner walls of the two sections of the steel casing body. By fixedly connecting the two mobile grinding units, the pulling effect of the two sections of the steel casing body during welding is achieved, thereby ensuring the accuracy of the welding and docking of the steel casing. Moreover, through the driving connection of one of the fitting wheels, after the steel casing is welded, the fitting wheel can drive the inner grinding assembly to move on the inner wall of the steel casing, thereby facilitating the movement and disassembly of the inner grinding assembly on the inner wall of the steel casing after welding, thereby ensuring the reuse of the inner grinding assembly and the separation effect from the steel casing, thereby realizing the combined use of the device.

[0029] 4. In the present invention, by setting the limiting welding unit, the first screw can drive the adjusting plate to adjust the height, so that the adjusting plate drives the welding gun at the bottom to weld the surface of the connecting seam of the steel casing body, ensuring the connection accuracy of the welding gun to the connecting seam of the steel casing body, and ensuring the welding effect of the welding gun. At the same time, the limiting welding unit is slidably connected on the surface of the sliding rod, so that the limiting welding unit can accurately weld the two sections of the steel casing body between the two moving blocks. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of a modular combined steel casing welding device of the present invention; Figure 2 It is a structural schematic diagram of the support and rotation assembly in the present invention; Figure 3 In the present invention Figure 2 A schematic diagram of the enlarged structure of Figure 4 It is a schematic diagram of the cross-sectional structure of the moving block in the present invention; Figure 5 This is a front view structural diagram of a modular combined steel casing welding device in the present invention; Figure 6This is a schematic diagram of the connection structure of the two mobile polishing units of the present invention; Figure 7 It is a side view structural schematic diagram of the internal grinding assembly in the present invention; Figure 8 It is a structural schematic diagram of the mobile grinding unit in the present invention; Figure 9 It is a structural schematic diagram of the connecting plate and the connecting frame in the present invention; Figure 10 It is a side structural schematic diagram of a modular combined steel casing welding device in the present invention.

[0031] In the figure, 1, side frame; 2, guide rod; 3, moving block; 4, adjustment seat; 5, supporting wheel; 6, side plate; 7, rotating rod; 8, gear column; 9, driving motor; 10, end gear; 11, two-way screw rod; 12, operating end; 13, through hole; 14, connecting rod; 15, steel casing body; 16, mounting plate; 17, telescopic rod; 18, connecting seat; 19, fitting wheel; 20, gear plate; 21, adjustment slot; 2 2. Sliding column; 23. Threaded rod; 24. Locking nut; 25. Handle; 26. Servo motor; 27. Insert rod; 28. Threaded hole; 29. ​​Connecting plate; 30. Mounting screw; 31. Connecting frame; 32. Grinding wheel; 33. Sliding rod; 34. Adjusting block; 35. First screw rod; 36. Top plate; 37. Adjusting plate; 38. Welding gun; 39. Limiting plate; 40. Rotating shaft; 41. Side rod; 42. Bidirectional motor. DETAILED DESCRIPTION

[0032] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0033] like Figures 1-10As shown, a modular combined steel casing welding device includes a side frame 1, a guide rod 2, a moving block 3, an adjustment seat 4, a supporting wheel 5, a side plate 6, a rotating rod 7, a gear column 8, a drive motor 9, an end gear 10, a bidirectional screw 11, an operating end 12, a through hole 13, a connecting rod 14, a steel casing body 15, a mounting plate 16, a telescopic rod 17, a connecting seat 18, a fitting wheel 19, a gear plate 20, an adjustment slot 21, a sliding column 22, a threaded rod 23, a locking nut 24, a handle 25, a servo motor 26, an insert rod 27, a threaded hole 28, a connecting plate 29, a mounting screw 30, a connecting frame 31, a grinding wheel 32, a sliding rod 33, an adjustment block 34, and a first screw 35. , top plate 36, adjustment plate 37, welding gun 38, limit plate 39, rotating shaft 40, side rod 41 and bidirectional motor 42, the guide rod 2 is fixedly connected between the two side frames 1, and the outer wall of the guide rod 2 is slidably connected to the support assembly, the support assembly includes two moving blocks 3, and the two moving blocks 3 are slidably connected to the outer wall of the guide rod 2 in parallel, and a through hole 13 for accommodating the guide rod 2 is provided inside the moving block 3. The moving block 3 is slidably arranged on the outer wall of the guide rod 2, which is convenient for the user to adjust the position of the supporting wheel 5 according to the welding requirements, ensuring the welding requirements of the supporting wheel 5 for different steel casings, and improving the user's convenience. At the same time, there are two adjustment The seat 4 is specifically connected to the internal rotation of the moving block 3 with a bidirectional screw rod 11, and the outer wall of the bidirectional screw rod 11 is connected to the two adjusting seats 4 through a ball nut. The bottom end of the adjusting seat 4 is slidably connected to the inner wall of the moving block 3, and in order to facilitate the operation of the bidirectional screw rod 11, an operating end 12 is fixedly connected to one end of the bidirectional screw rod 11. The operating end 12 is located on the outside of the moving block 3. Through the setting of the bidirectional screw rod 11, the user can drive the bidirectional screw rod 11 to rotate through the operating end 12 outside, so that the two adjusting seats 4 are driven to move synchronously above the moving block 3, thereby realizing the distance adjustment between the two adjusting seats 4, which is convenient for the two adjusting seats 4 to drive The supporting wheel 5 performs limited supporting rotation on the steel casing bodies 15 of different diameters. At the same time, in order to realize the supporting rotation of the steel casing body 15, the supporting wheel 5 is rotatably connected to the top of the adjusting seat 4, and a connecting rod 14 is fixedly connected between the two supporting wheels 5 arranged in parallel, and the connecting rod 14 is rotatably connected to the top of the adjusting seat 4, and the connecting rod 14 is vertically distributed with the bidirectional screw rod 11. Under the action of the connecting rod 14, the transmission of the gear column 8 and the end gear 10 can realize the synchronous rotation of the two supporting wheels 5 above the two moving blocks 3, ensuring the synchronous rotation effect of the two sections of the steel casing body 15 during welding, ensuring the welding accuracy, and having a simple structure and good transmission effect. The outer side of one of the moving blocks 3 is fixedly connected to a side plate 6, and one side of the side plate 6 is rotatably connected to a rotating rod 7, and the rotating rod 7 is driven by a driving motor 9. Specifically, the output end of the driving motor 9 is fixedly connected to the rotating rod 7, and the driving motor 9 is fixedly installed on one side of the side plate 6. At the same time, a gear column 8 is fixedly connected to the outer wall of the rotating rod 7. The surface of the gear column 8 is meshed and connected to two end face gears 10, and the two end face gears 10 are correspondingly arranged on one side of the two supporting wheels 5. Under the rotation action of the driving motor 9 and the rotating rod 7, the rotating rod 7 can drive the gear column 8 to rotate stably. Through the meshing connection between the gear column 8 and the end face gear 10, when the adjusting seat 4 drives the end face gear 10 to move to any position, the end face gear The wheel 10 remains engaged on one side of the gear column 8 to ensure the transmission effect of the gear column 8 and the end face gear 10, and the center of the supporting wheel 5 coincides with the center of the end face gear 10. The end face gear 10 and the supporting wheel 5 are concentrically arranged to realize the drive of the end face gear 10 and the supporting wheel 5, so that the supporting wheel 5 can drive the steel casing body 15 on the surface to rotate at the bottom, thereby realizing the rotation effect of the steel casing body 15 during welding and ensuring the comprehensiveness of the welding of the steel casing body 15. The steel casing body 15 is fittedly connected between the two supporting wheels 5, and the two steel casing bodies 15 are respectively located above the two moving blocks 3. The connection seam of the steel casing body 15 is located between the two moving blocks 3 to ensure the docking accuracy between the two steel casing bodies 15. Furthermore, an internal grinding assembly is connected to the interior of the steel casing body 15, wherein the internal grinding assembly includes two symmetrically arranged mobile grinding units, and the two mobile grinding units are detachably connected, wherein the mobile grinding unit includes a mounting plate 16, which is movably mounted on the interior of the steel casing body 15, and a plurality of telescopic rods 17 are slidably connected to the surface of the mounting plate 16, and the plurality of telescopic rods 17 are equidistantly arranged in a ring on the surface of the mounting plate 16, and the outer end of the telescopic rod 17 is fixedly mounted with a connecting seat 18, and a fitting wheel 19 is rotatably connected above the connecting seat 18, and a servo motor 26 is fixedly connected to one side of one of the connecting seats 18, and the output end of the servo motor 26 is fixedly connected to the fitting wheel 19, and by arranging a servo motor 26 on one side of one of the connecting seats 18, the servo motor 26 can drive one of the fitting wheels 19 to rotate, so that the fitting wheel 19 can fit and move on the inner wall of the steel casing body 15, thereby realizing the self-separation of the internal grinding assembly after the steel casing body 15 is welded, thereby ensuring the working effect of the internal grinding assembly; The surface of the mounting plate 16 is fixedly connected to a threaded rod 23, and the outer wall of the threaded rod 23 is provided with a gear plate 20. The surface of the gear plate 20 is fixedly connected to a handle 25. A handle 25 is provided on the surface of the gear plate 20, which is convenient for the user to rotate the gear plate 20 through the handle 25. At the same time, a locking nut 24 is fitted on the surface of the gear plate 20, and the locking nut 24 is threadedly connected to the outer wall of the threaded rod 23. Under the action of the locking nut 24, the fixing effect of the gear plate 20 after the position is rotated is ensured. In addition, in order to achieve the synchronous extension and retraction effect of multiple telescopic rods 17, a plurality of adjusting slots 21 are equidistantly provided inside the gear plate 20, and the plurality of adjusting slots 21 are correspondingly arranged with respect to the plurality of telescopic rods 17. Specifically, the plurality of adjusting slots 21 are arranged in a radial arc structure on the surface of the gear plate 20. The inner walls of the plurality of adjusting slots 21 are all slidably connected to slide posts 22, and the slide posts 22 are fixedly mounted on the surface of the telescopic rod 17.

[0034] Furthermore, an outer wall of one of the mounting plates 16 is fixedly connected to an insert rod 27, and an outer wall of the other mounting plate 16 is fixedly connected to an insert cavity that can accommodate the insert rod 27. A threaded hole 28 is provided inside the insert rod 27, and a through hole is provided inside the insert cavity corresponding to the threaded hole 28. An elastic limit plate is provided at the front end of the insert rod 27, and grooves are provided on both sides of the insert cavity to ensure the connection effect of the insert rod 27 inside the insert cavity, which is convenient for the precise installation of the two mobile grinding units and realizes the pulling effect between the steel casing bodies 15 at both ends. Moreover, by setting the insert rod 27 and the through hole, the two symmetrically arranged mobile grinding units can be installed with a connecting plate 29 through the threaded hole 28 after connection, thereby improving the connection flexibility of the mobile grinding unit. A connecting plate 29 is installed on the surface of the insert rod 27, and the internal thread of the connecting plate 29 is connected to the mounting screw 30, and the mounting screw 30 is connected to the mounting screw 30. The bottom of the connecting frame 31 is rotatably connected to the inner wall of the threaded hole 28, and the connecting plate 29 is rotatably connected to the connecting frame 31. The bottom of the connecting frame 31 is rotatably connected to the grinding wheel 32, and the grinding wheel 32 is fitted and connected to the inner wall of the steel casing body 15. In addition, the mobile grinding unit is installed between the two sections of the steel casing body 15 by the fitting wheel 19, so that the steel casing body 15 can synchronously drive the mobile grinding unit to rotate when it rotates, so that the connecting frame 31 always rotates and grinds the bottom inner wall of the steel casing body 15 downward under the action of gravity, which is beneficial to improving the welding quality of the steel casing body 15 after welding and ensuring the internal flow of the steel casing body 15.

[0035] Furthermore, a limiting welding unit is provided on the outside of the steel casing body 15, and the limiting welding unit is located between the two moving blocks 3. Specifically, the limiting welding unit includes a sliding rod 33, the sliding rod 33 is fixedly connected between the two side frames 1, the outer wall of the sliding rod 33 is slidably connected to the adjusting block 34, and the top of the adjusting block 34 is rotatably connected to the first screw rod 35, the top of the first screw rod 35 is rotatably installed with a top plate 36, and the first screw rod 35 is driven by a bidirectional motor 42, wherein the top of the top plate 36 is fixedly connected to the bidirectional motor 42, and the output end of the bidirectional motor 42 is fixedly connected to the first screw rod 35, and the outer wall of the first screw rod 35 is connected to the adjusting block 34 through a ball nut. The section plate 37, in order to ensure the movement effect of the adjustment plate 37, is slidably connected with a vertical rod inside the adjustment plate 37, and the vertical rod is fixedly mounted on the bottom end of the top plate 36, and the vertical rod is arranged parallel to the first screw rod 35, and a welding gun 38 is fixedly connected to the bottom end of the adjustment plate 37, and the bottom end of the welding gun 38 is fitly connected to the top end of the connection seam of the steel casing body 15. Through the setting of the bidirectional motor 42, the first screw rod 35 can be stably driven, and under the action of the vertical rod and the first screw rod 35, the adjustment plate 37 is stably raised and lowered below the top plate 36, so that the adjustment plate 37 can drive the welding gun 38 at the bottom to accurately weld the surface of the steel casing body 15.

[0036] There are four limit plates 39 rotatably connected to both sides of the adjustment plate 37, and the limit plates 39 on both sides are located on both sides of the connection seam of the steel casing body 15. The four limit plates 39 are rotatably connected by a rotating shaft 40, and the four limit plates 39 are arranged in a diamond structure. A side rod 41 is connected between the limit plates 39 on both sides, and the side rod 41 is located on the outside of the first screw rod 35. Under the action of the diamond structure of the four limit plates 39, when the adjustment plate 37 drives the top rotation shaft 40 to move downward, the four limit plates 39 are stably limited on the outer wall of the steel casing body 15. The limit plates 39 on both sides are stably limited on both sides of the connection seam of the steel casing body 15, avoiding the deviation of the steel casing body 15 during welding work, and ensuring the welding accuracy and welding quality of the steel casing body 15.

[0037] The working principle of the present invention is as follows: when in use, the two adjustment seats 4 on the surface are rotated and driven by the bidirectional screw rod 11 to adjust the position, thereby realizing the support of the bottom of the steel casing body 15. During welding, the first section of the steel casing body 15 is installed on the supporting wheel 5 above the moving block 3 on one side, ensuring the supporting and rotating effect of the supporting wheel 5 at the bottom of the steel casing body 15. After the first section of the steel casing body 15 is moved to the appropriate position, one of the mobile grinding units is set inside the first section of the steel casing body 15 through the mounting plate 16, and the gear plate 20 is rotated in the surface of the mounting plate 16. Under the action of the adjusting groove 21 set on the surface of the mounting plate 16, the adjusting groove 21 drives the telescopic rod 17 to be telescopic, so that the telescopic rod 17 is telescopic. The rod 17 drives the fitting wheel 19 to fit the inner wall of the first section of the steel casing body 15, thereby realizing the installation effect of the mobile grinding unit inside the steel casing body 15 on one side. After the mounting plate 16 drives the adjustment slot 21 to move to the appropriate position, the gear plate 20 is fixed by the locking nut 24 to ensure the position stability of the gear plate 20. After one of the mobile grinding units is fixed inside the first section of the steel casing body 15, the other mobile grinding unit is docked and installed through the insertion rod 27 and the insertion cavity to ensure the concentric effect of the two mobile grinding units, and the connecting plate 29 is installed on the surface of the insertion rod 27 through the threaded hole 28 and the mounting screw 30, so that the connecting frame 31 drives the grinding wheel 32 to be located between the two mobile grinding units. Between the grinding units, at the same time, the second section of the steel casing body 15 is supported and rotated above the moving block 3 on the other side, and the second section of the steel casing body 15 is sleeved on the outer wall of the other mobile grinding unit, so that the two mobile grinding units are respectively installed on the inner walls of the two steel casing bodies 15, realizing the pulling connection between the two steel casing bodies 15 by the inner grinding assembly. During welding, the first screw rod 35 drives the adjusting plate 37 to move downward, so that the adjusting plate 37 drives the welding gun 38 to weld above the connecting seam of the steel casing body 15. At the same time, under the effect of the rotation of the two steel casing bodies 15 driven by the supporting wheel 5, the two mobile grinding units are synchronously rotated with the steel casing body 15, so that the connecting frame 3 Under the action of gravity, the bottom inner wall of the steel casing body 15 is always rotated downward and ground, which is beneficial to improving the welding quality of the steel casing body 15 after welding and ensuring the internal fluidity of the steel casing body 15 after welding. After the welding of the steel casing body 15 is completed, the servo motor 26 is set to enable the servo motor 26 to drive one of the fitting wheels 19 to rotate, so that the fitting wheel 19 can fit the inner wall of the steel casing body 15 and move, thereby realizing the self-separation of the inner grinding component after the welding of the steel casing body 15, facilitating the separation of the modular inner grinding component, and realizing the combined use effect of the device, thus completing the working principle of the modular combined steel casing welding device.

[0038] In summary, in the present invention, a supporting and rotating assembly is movably arranged on the surface of the side frame 1, so that the supporting and rotating assembly can drive the two sections of the steel casing body 15 on both sides to rotate synchronously, ensuring the rotation accuracy of the two sections of the steel casing body 15 during welding, and facilitating the welding gun 38 to accurately weld the steel casing body 15 at both ends. Moreover, an internal grinding assembly is modularly arranged inside the steel casing body 15, so that the internal grinding assembly grinds the weld seam of the welded inner wall of the welded steel casing to ensure the welding effect of the steel casing. Moreover, a limiting welding unit is provided on the outside of the steel casing, so that the steel casing can achieve external synchronous limiting during welding. Through such an arrangement, a modular and combined flexible installation of the device is realized, which is convenient for accurately welding the two-section steel casing to avoid offset and ensure welding quality, and solves the technical problems that the existing steel casing welding device has poor accuracy during butt welding and the welding quality of the inner wall of the steel casing is poor after welding.

[0039] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope of the appended claims.

Claims

1. A modular combined steel casing welding device, comprising two side frames (1), characterized in that: A guide rod (2) is fixedly connected between the two side frames (1), and the outer wall of the guide rod (2) is slidably connected to a support assembly, the support assembly includes two moving blocks (3), and the two moving blocks (3) are parallel and slidably connected to the outer wall of the guide rod (2), the surface of the moving block (3) is slidably connected to two adjustment seats (4), and the top of each adjustment seat (4) is rotatably connected to a support wheel (5); The outer side of one of the moving blocks (3) is fixedly connected to a side plate (6), and one side of the side plate (6) is rotatably connected to a rotating rod (7), which is driven by a driving motor (9). The outer wall of the rotating rod (7) is fixedly connected to a gear column (8), and the surface of the gear column (8) is meshedly connected to two end face gears (10), and the two end face gears (10) are correspondingly arranged on one side of the two supporting wheels (5); A steel casing body (15) is fitted and connected between the two supporting wheels (5), and the two steel casing bodies (15) are respectively located above the two moving blocks (3), and the connection seam of the steel casing body (15) is located between the two moving blocks (3); The interior of the steel casing body (15) is connected to an internal grinding assembly, and a limiting welding unit is provided on the outside of the steel casing body (15), and the limiting welding unit is located between the two moving blocks (3); The inner grinding assembly includes two symmetrically arranged mobile grinding units, and the two mobile grinding units are detachably connected; The mobile grinding unit includes a mounting plate (16), the mounting plate (16) is movably mounted inside the steel casing body (15), a plurality of telescopic rods (17) are slidably connected to the surface of the mounting plate (16), and the plurality of telescopic rods (17) are equidistantly arranged in a ring shape on the surface of the mounting plate (16), a connecting seat (18) is fixedly mounted on the outer end of the telescopic rod (17), and a fitting wheel (19) is rotatably connected to the upper side of the connecting seat (18); A threaded rod (23) is fixedly connected to the surface of the mounting plate (16), a gear plate (20) is sleeved on the outer wall of the threaded rod (23), a locking nut (24) is fitted on the surface of the gear plate (20), and the locking nut (24) is threadedly connected to the outer wall of the threaded rod (23); The gear plate (20) has a plurality of adjustment slots (21) equidistantly formed therein, and the plurality of adjustment slots (21) are correspondingly arranged with respect to the plurality of telescopic rods (17). The inner walls of the plurality of adjustment slots (21) are all slidably connected to slide posts (22), and the slide posts (22) are fixedly mounted on the surface of the telescopic rods (17); A plurality of adjustment slots (21) are arranged on the surface of the gear plate (20) in a radial arc structure.

2. A modular combined steel casing welding device according to claim 1, characterized in that: A connecting rod (14) is fixedly connected between the two parallel supporting wheels (5), and the connecting rod (14) is rotatably connected to the top of the adjustment seat (4), and the connecting rod (14) and the bidirectional screw rod (11) are vertically distributed; A through hole (13) capable of accommodating the guide rod (2) is provided inside the moving block (3).

3. The modular combined steel casing welding device according to claim 1, characterized in that: The output end of the driving motor (9) is fixedly connected to the rotating rod (7), and the driving motor (9) is fixedly mounted on one side of the side plate (6); The center of the supporting wheel (5) coincides with the center of the end face gear (10).

4. The modular combined steel casing welding device according to claim 1, characterized in that: A handle (25) is fixedly connected to the surface of the gear plate (20); A servo motor (26) is fixedly connected to one side of one of the connecting seats (18), and an output end of the servo motor (26) is fixedly connected to a fitting wheel (19).

5. The modular combined steel casing welding device according to claim 1, characterized in that: An insert rod (27) is fixedly connected to the outer wall of one of the mounting plates (16), and an insert cavity capable of accommodating the insert rod (27) is fixedly connected to the outer wall of the other mounting plate (16); A threaded hole (28) is provided inside the insertion rod (27), and a through hole is provided inside the insertion cavity corresponding to the threaded hole (28).

6. The modular combined steel casing welding device according to claim 5, characterized in that: A connecting plate (29) is installed on the surface of the insertion rod (27), and the internal thread of the connecting plate (29) is connected to a mounting screw (30), and the mounting screw (30) is threadedly connected to the inner wall of the threaded hole (28). A connecting frame (31) is rotatably connected below the connecting plate (29), and a grinding wheel (32) is rotatably connected to the bottom of the connecting frame (31), and the grinding wheel (32) is fitted and connected to the inner wall of the steel casing body (15).

7. The modular combined steel casing welding device according to claim 1, characterized in that: The position limiting welding unit includes a slide rod (33), the slide rod (33) is fixedly connected between the two side frames (1), the outer wall of the slide rod (33) is slidably connected to an adjustment block (34), and the top of the adjustment block (34) is rotatably connected to a first screw rod (35), the top of the first screw rod (35) is rotatably mounted with a top plate (36), and the first screw rod (35) is driven by a bidirectional motor (42); The outer wall of the first screw rod (35) is connected to an adjustment plate (37) via a ball nut, and the bottom end of the adjustment plate (37) is fixedly connected to a welding gun (38), and the bottom end of the welding gun (38) is fitted and connected to the top end of the connection seam of the steel casing body (15).

8. The modular combined steel casing welding device according to claim 7, characterized in that: Four limit plates (39) are rotatably connected to both sides of the adjustment plate (37), and the limit plates (39) on both sides are located on both sides of the connection seam of the steel casing body (15); The four limiting plates (39) are rotatably connected via a rotating shaft (40), and the four limiting plates (39) are arranged in a diamond-shaped structure; A side rod (41) is connected between the limiting plates (39) on both sides, and the side rod (41) is located outside the first screw rod (35).

9. The modular combined steel casing welding device according to claim 7, characterized in that: The top end of the top plate (36) is fixedly connected to a bidirectional motor (42), and the output end of the bidirectional motor (42) is fixedly connected to a first screw rod (35); The interior of the adjustment plate (37) is slidably connected to a vertical rod, which is fixedly mounted on the bottom end of the top plate (36) and is arranged parallel to the first screw rod (35).

10. The modular combined steel casing welding device according to claim 1, characterized in that: The moving block (3) is internally rotatably connected to a bidirectional screw rod (11), and the outer wall of the bidirectional screw rod (11) is connected to two adjustment seats (4) via a ball nut, and the bottom end of the adjustment seat (4) is slidably connected to the inner wall of the moving block (3); One end of the bidirectional screw rod (11) is fixedly connected to an operating end (12), and the operating end (12) is located outside the moving block (3).

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