Correcting device for box type column beam after welding

Abstract

The invention relates to the technical field of column beam welding, in particular to a box type column beam post-welding correcting device which comprises a flame spray gun, fixed frames and a movable frame, the flame spray gun is externally connected with gas supply equipment, the fixed frames are arranged on the two sides of the movable frame, and the movable frame is in a C shape and internally provided with a thread driving structure. The fixing frame fixes box type column beams of different sizes through the screw rods and the fixing pressing plates, and operation is easy and convenient. A thread driving structure can accurately control the position of a flame spray gun, and it can be ensured that the size and shape meet the design requirements when a large box type column beam is corrected. In addition, the extension length of the sliding strip is adjusted through the spring, and the right-angle side can be effectively heated and corrected through cooperation with the roller and the rotating wheel. And meanwhile, the second linear motor can adjust the position of the sliding installation base, strip-shaped heating welding correction is achieved, operation is convenient and fast, the device structure is stable, the construction quality can be improved, the manual operation difficulty and strength are reduced, and the problems that in a traditional correction mode, the moving path is long, and right-angle sides are difficult to correct are effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of column-beam welding, and particularly relates to a correction device for box-shaped column-beams after welding. Background Art

[0002] In the fields of construction steel structure construction and machinery manufacturing, etc., box-shaped column-beams are widely used. However, welding, as a key link in the processing of box-shaped column-beams, often causes problems of column-beam deformation. This phenomenon not only has a negative impact on the construction progress and product quality, but also increases the production cost, bringing many troubles to related industries. In related technologies, after the welding process is completed, it is usually necessary to perform operation procedures such as measuring and correcting steel structure components to eliminate the influence of welding deformation on steel structure components, so that the dimensions and shapes of steel structure components meet the production requirements. In the correction process of welding deformation, heating correction uses uneven heating to make the structure obtain reverse deformation to compensate or offset the original welding deformation. Heating correction can eliminate many deformations that cannot be solved by force application correction, so it is commonly used in the correction of welding deformation of steel structure components. For large box-shaped column-beam structures, traditional correction equipment relies on manual experience and it is difficult to accurately control the position of correction tools. In practical applications, on the one hand, due to the large volume of building steel structure components, the linear heating process requires a long moving path of the flame, and the multiple heating processes further extend the moving path of the flame. On the other hand, the stress changes and deformation adjustments generated during the correction of the side may not be sufficient to eliminate these specific deformations of the right-angle side, and it is difficult for manual operation to accurately perform heating correction on the right-angle side. Therefore, when the staff heats the steel structure components, the workload is relatively large.

[0003] Therefore, it is very necessary to propose a correction device for box-shaped column-beams after welding to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a correction device for box-shaped column-beams after welding to solve the problems of inconvenient operation caused by a long moving path and difficult heating correction of the right-angle side.

[0005] To achieve the above purpose, the present invention provides the following technical solutions: A correction device for box-shaped column-beams after welding, including a flame spray gun, a fixed frame, and a moving frame. The flame spray gun is externally connected to a gas supply device through a pipeline. The flame spray gun is arranged on the moving frame, and the fixed frame is arranged on the left and right sides of the moving frame; The fixed frame is a square ring. Screws are threadedly installed on the top and one side edge of the fixed frame. Sliding grooves are arranged on the other two side frames of the fixed frame. Fixed pressing plates are slidably installed in the sliding grooves. One end of the fixed pressing plate extends into the interior of the fixed frame. Fixed sleeves are fixedly installed on the fixed pressing plates. The screws cooperate with the fixed sleeves on the fixed pressing plates to form a connection structure; The moving frame is C-shaped. A slider is slidably connected to the inner wall of the moving frame. A sliding guiding structure is arranged inside the moving frame. The slider is connected to the sliding guiding structure. A rotating block is rotatably installed on one side of the slider away from the sliding guiding structure. The inside of the rotating block is a cavity structure. A sliding bar is slidably installed inside the rotating block. After the sliding bar slides to different positions, it is locked with the rotating block through a pin. A right-angle frame is fixedly installed at one end of the sliding bar away from the rotating block. A linear motor I is fixedly installed on the right-angle frame. The driving end of the linear motor I is connected to a driving connecting rod. A rotating wheel is rotatably installed on the driving connecting rod. A rolling groove is arranged on the rotating wheel; The flame spray gun is fixedly installed on one side of the rotating block; A steel wire rope is fixedly connected between the two fixed frames. The steel wire ropes are symmetrically arranged on the fixed frames. The bottom of the moving frame is slidably installed on the steel wire rope. A motor I is fixedly installed on the top of the moving frame. A sliding wheel is rotatably installed on the moving frame. The output end of the motor I is drivingly connected to the sliding wheel. The sliding wheel and the steel wire rope form a rolling pair through point contact.

[0006] Preferably, an annular groove is arranged inside the fixed sleeve. A rotating disc is movably clamped in the annular groove. The rotating disc is fixedly connected to one end of the screw rod.

[0007] Preferably, the sliding guiding structure includes a threaded rod and a motor II. The motor II is drivingly connected to the threaded rod. The slider is threadedly installed on the threaded rod. The lower end of the threaded rod is drivingly connected to the motor II.

[0008] Preferably, sliding mounting seats are slidably installed at both the upper and lower ends inside the moving frame. The upper end of the threaded rod is rotatably connected to the sliding mounting seat. Thread grooves for cooperating with the sliding of the moving frame are arranged on both sides of the sliding mounting seat. The motor II is fixedly installed on the sliding mounting seat. One end of the threaded rod is rotatably installed on the sliding mounting seat. A linear motor II is fixedly installed on the moving frame. The linear motor II is drivingly connected to the sliding mounting seat.

[0009] Preferably, a spring is fixedly installed inside the rotating block. The other end of the spring is fixedly connected to the sliding bar. Pin holes are arranged on both the rotating block and the sliding bar. A pin is slidably installed in the pin holes.

[0010] Preferably, the right-angle frame includes two long rods. Both of the two long rods are arranged at an angle of 45° with the side surface of the rotating block. A roller is rotatably installed at one end of the long rod away from the rotating block. The roller is arranged parallel to the rotating block.

[0011] Preferably, the axis of the rotating wheel and the connecting line of the centers of the two rollers are on the same straight line.

[0012] Preferably, one end of the flame spray gun is provided with a nozzle, and the axis of the nozzle is perpendicular to the axis of the rotating wheel.

[0013] Technical effects and advantages of the present invention: 1. During the construction of building steel structures, the welding deformation of box-shaped column beams will affect the installation accuracy of the overall framework. Through the sliding guiding structure, the movement of the slider can be precisely controlled, and then the position of the flame spray gun can be adjusted. When straightening the box-shaped column beams of large buildings, it can ensure that the dimensions and shapes of the column beams meet the design requirements, improve the construction quality, and the position of the sliding mounting seat can also be adjusted by the linear motor two, so as to realize strip heating welding straightening and meet the requirements of complex straightening processes.

[0014] 2. When straightening large box-shaped column beams, the stress changes and deformation adjustments generated by side straightening may not be sufficient to eliminate these specific deformations of the right-angle sides, and it is difficult for manual operation to accurately and quickly straighten the right-angle sides. By using the spring to adjust the extension length of the sliding bar, the roller and the rotating wheel work together, and the flame spray gun can effectively heat and straighten the right-angle sides by rolling on the steel rope with the moving frame, which is convenient and fast.

[0015] 3. The fixing frame can quickly fix box-shaped column beams of different sizes through the screw and the fixing pressing plate, and the operation is simple and convenient. The moving frame is driven by the motor one to roll the sliding wheel on the steel rope, and the position of the flame spray gun in the length direction of the column beam can be easily adjusted; all motors and driving structures are electrically controlled, and the operator can remotely or centrally control nearby, improving the convenience and flexibility of operation, and reducing the difficulty and intensity of manual operation.

[0016] 4. The fixing frame adopts a square cross-section design, combined with the fixing structure of the screw and the fixing pressing plate, which can stably fix the column beam during the straightening process and prevent its displacement. The moving frame is in a C-shaped structure, enhancing the overall structural strength and stability, ensuring that the device can operate reliably under various straightening operations, reducing the occurrence of faults and extending the service life. Description of the drawings

[0017] Figure 1 It is a schematic diagram of the overall structure of a box-shaped column beam welding post-straightening device of the present invention.

[0018] Figure 2 It is a schematic diagram of the cross-sectional structure of the fixing frame of the present invention.

[0019] Figure 3 It is a schematic diagram of the installation structure of the rotating block of the present invention.

[0020] Figure 4 It is a schematic diagram of the internal cross-sectional structure of the rotating block of the present invention.

[0021] Figure 5Schematic diagram of the front and rear drive and flame spraying strip welding structure of the mobile frame of the present invention.

[0022] Figure 6 Front view structural schematic diagram of the internal structure of the mobile frame of the present invention.

[0023] In the figure: 1, flame spray gun; 2, fixed frame; 201, screw; 202, chute; 203, fixed pressing plate; 204, fixed sleeve; 205, annular groove; 206, turntable; 3, mobile frame; 301, slider; 302, rotating block; 303, slide bar; 304, right-angle frame; 305, linear motor 1; 306, driving connecting rod; 307, runner; 308, rolling groove; 309, spring; 310, pin hole; 311, pin; 312, long rod; 313, roller; 4, steel wire rope; 5, motor 1; 6, sliding wheel; 7, threaded rod; 8, motor 2; 9, sliding mounting seat; 10, wire groove; 11, linear motor 2; 12, nozzle. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] The present invention provides a Figures 1-6 box-shaped column beam welding post-correction device as shown, including a flame spray gun 1, a fixed frame 2, and a mobile frame 3. The flame spray gun 1 is externally connected to a gas supply device through a pipeline. The flame spray gun 1 is arranged on the mobile frame 3, and the fixed frame 2 is arranged on the left and right sides of the mobile frame 3; The fixed frame 2 is a square ring. Screws 201 are threadedly installed on the top and one side of the fixed frame 2. Chutes 202 are arranged on the other two frames of the fixed frame 2. Fixed pressing plates 203 are slidably installed in the chutes 202. One end of the fixed pressing plate 203 extends into the interior of the fixed frame 2. Fixed sleeves 204 are fixedly installed on the fixed pressing plates 203. The screws 201 cooperate with the fixed sleeves 204 on the fixed pressing plates 203 to form a connection structure; The moving frame 3 is C-shaped. A slider 301 is slidably connected to the inner wall of the moving frame 3. A sliding guiding structure is arranged inside the moving frame 3. The slider 301 is connected to the sliding guiding structure. A rotating block 302 is rotatably installed on one side of the slider 301 away from the sliding guiding structure. The inside of the rotating block 302 is a cavity structure. A sliding bar 303 is slidably installed inside the rotating block 302. After the sliding bar 303 slides to different positions, it is locked with the rotating block 302 by a pin. A right-angle frame 304 is fixedly installed at one end of the sliding bar 303 away from the rotating block 302. A linear motor 305 is fixedly installed on the right-angle frame 304. The driving end of the linear motor 305 is connected to a driving connecting rod 306. A rotating wheel 307 is rotatably installed on the driving connecting rod 306. A rolling groove 308 is arranged on the rotating wheel 307; The flame spray gun 1 is fixedly installed on one side of the rotating block 302; A steel rope 4 is fixedly connected between the two fixed frames 2. The steel ropes 4 are symmetrically arranged on the fixed frames 2. The bottom of the moving frame 3 is slidably installed on the steel rope 4. A motor 5 is fixedly installed on the top of the moving frame 3. A sliding wheel 6 is rotatably installed on the moving frame 3. The output end of the motor 5 is drivingly connected to the sliding wheel 6. The sliding wheel 6 and the steel rope 4 form a rolling pair through point contact.

[0026] Further, an annular groove 205 is arranged inside the fixed sleeve 204. A turntable 206 is movably engaged in the annular groove 205. The turntable 206 is fixedly connected to one end of the screw 201; Further, the sliding guiding structure includes a threaded rod 7 and a motor 8. The motor 8 is drivingly connected to the threaded rod 7. The slider 301 is threadedly installed on the threaded rod 7. The lower end of the threaded rod 7 is drivingly connected to the motor 8; Further, sliding mounting seats 9 are slidably installed at both the upper and lower ends inside the moving frame 3. The upper end of the threaded rod 7 is rotatably connected to the sliding mounting seat 9. Thread grooves 10 for cooperating with the sliding of the moving frame 3 are arranged on both sides of the sliding mounting seat 9. The motor 8 is fixedly installed on the sliding mounting seat 9. One end of the threaded rod 7 is rotatably installed on the sliding mounting seat 9. A linear motor 11 is fixedly installed on the moving frame 3. The linear motor 11 is drivingly connected to the sliding mounting seat 9; Further, a spring 309 is fixedly installed inside the rotating block 302. The other end of the spring 309 is fixedly connected to the sliding bar 303. Pin holes 310 are arranged on both the rotating block 302 and the sliding bar 303. A pin 311 is slidably installed in the pin holes 310; Further, the right-angle frame 304 includes two long rods 312. Both of the two long rods 312 are arranged at an angle of 45° with the side surface of the rotating block 302. A roller 313 is rotatably installed at one end of the long rod 312 away from the rotating block 302. The roller 313 is arranged parallel to the rotating block 302; Further, the axis of the rotating wheel 307 and the connecting line of the centers of the two rollers 313 are located on the same straight line; Furthermore, one end of the flame spray gun 1 is provided with a nozzle 12, and the axis of the nozzle 12 is perpendicular to the axis of the runner 307; In an embodiment of the present invention, the flame spray gun 1 is connected to an external gas supply device through a pipeline and ensured to be firmly connected and leak-free. The gas supply device is turned on and adjusted to an appropriate gas flow rate and pressure so that the flame spray gun can stably spray flames. The box-shaped column beam to be corrected is placed in a suitable position to ensure that the column beam is stable and convenient for operation. The fixing frame 2 is installed on the left and right sides of the moving frame 3, and it is checked whether the structures of all parts of the fixing frame are intact, whether the screw 201 can rotate normally, and whether the sliding groove 202 is smooth; According to the size of the box-shaped column beam, the screws 201 at the top and one side of the fixing frame 2 are rotated. When the screws 201 rotate, since they cooperate with the fixed sleeves 204 on the fixed pressing plates 203, and the turntables 206 in the annular grooves 205 inside the fixed sleeves 204 are fixedly connected to one ends of the screws 201, the fixed pressing plates 203 can be driven to slide along the sliding grooves 202, and the positions of the fixed pressing plates 203 are adjusted to make them closely fit the surface of the box-shaped column beam, and the column beam is firmly fixed in the fixing frame 2; When it is necessary to correct the welded box-shaped column beam, the motor two 8 is started, and the motor two 8 drives the threaded rod 7 to rotate. Since the slider 301 is threadedly installed on the threaded rod 7, the slider 301 will slide along the axial direction of the threaded rod 7 on the inner wall of the moving frame 3. When the slider 301 moves to a suitable position, the rotating block 302 is rotated to face the box-shaped column beam. After the flame spray gun 1 is ignited, the nozzle 12 sprays flames, and the welding part of the box-shaped column beam is heated in cooperation with the sliding of the slider 301 in the axial direction of the threaded rod 7; during this process, the motor one 5 can be driven to drive the sliding wheel 6 to roll on the steel rope 4, so that the moving frame 3 moves along the steel rope 4, and the position of the flame spray gun 1 in the axial direction of the column beam extension is adjusted to realize the welding correction of different areas of the box-shaped column beam; When straightening the right-angle side of the box-shaped column beam, the elastic force of the spring 309 is used to adjust the extension length of the slider 303 in the rotating block 302. When the length exceeds the nozzle 12, the slider 303 slides inside the rotating block 302 until the roller 313 abuts against the box-shaped column beam. Initially, the slider 303 is farther from the box-shaped column beam compared to the position of the flame spray gun 1 to avoid scratching the surface of the box-shaped column beam by the roller 313. The motor two 8 drives the threaded rod 7 to rotate, causing the slider 301 to move upward. The rotating block 302 is rotated to face the right-angle side of the box-shaped column beam. Under the action of the spring 309, the long rod 312 of the right-angle frame 304 rolls on the side of the box-shaped column beam through the roller 313. The two long rods 312 are respectively attached to the top surface and the side of the box-shaped column beam. At this time, the linear motor one 305 is started. The driving end of the linear motor one 305 drives the driving connecting rod 306 to move. The rotating wheel 307 rotatably installed on the driving connecting rod 306 moves accordingly. Since the axis of the rotating wheel 307 and the connecting line of the axes of the two rollers 313 are on the same straight line, the rolling groove 308 on the roller 313 can roll on the right-angle side of the box-shaped column beam. Then the flame spray gun 1 is ignited. The motor one 5 drives the sliding wheel 6 to roll on the steel rope 4, causing the moving frame 3 to move along the steel rope 4, thereby adjusting the position of the flame spray gun 1 in the length direction of the column beam; When strip heating welding straightening is required, the linear motor two 11 drives the sliding mounting seat 9 to slide back and forth inside the moving frame 3, thereby adjusting the position of the sliding guiding structure and realizing fine adjustment of the position of the flame spray gun 1 in the transverse direction of the column beam. Cooperating with the sliding of the slider 301 on the inner wall of the moving frame 3 along the axial direction of the threaded rod 7, strip heating welding straightening is realized; After the straightening is completed, the flame spray gun 1 and all motors are turned off. The screw 201 on the fixing frame 2 is loosened, the fixing pressing plate 203 is removed from the surface of the box-shaped column beam, the straightened column beam is taken out, and the straightening device is cleaned and inspected to prepare for the next use.

[0027] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims

1. A correction device for a box-shaped column and beam after welding, comprising a flame spray gun (1), a fixed frame (2), and a movable frame (3). The flame spray gun (1) is externally connected to a gas supply device through a pipeline, and is characterized in that: The flame spray gun (1) is arranged on the moving frame (3), and the fixed frames (2) are arranged on the left and right sides of the moving frame (3). The fixed frame (2) is a square ring. Screws (201) are threadedly installed on the top and one side edge of the fixed frame (2). Chute grooves (202) are arranged on the other two side frames of the fixed frame (2). Fixed pressing plates (203) are slidably installed in the chute grooves (202). One end of the fixed pressing plate (203) extends into the interior of the fixed frame (2). Fixed sleeves (204) are fixedly installed on the fixed pressing plates (203). The screws (201) cooperate with the fixed sleeves (204) on the fixed pressing plates (203) to form a connection structure. The moving frame (3) is in a C shape. A slider (301) is slidably connected to the inner wall of the moving frame (3). A sliding guiding structure is arranged inside the moving frame (3). The slider (301) is connected to the sliding guiding structure. A rotating block (302) is rotatably installed on one side of the slider (301) away from the sliding guiding structure. The interior of the rotating block (302) is a cavity structure. A sliding bar (303) is slidably installed inside the rotating block (302). After the sliding bar (303) slides to different positions, it is locked with the rotating block (302) by a pin. A right-angle frame (304) is fixedly installed at one end of the sliding bar (303) away from the rotating block (302). A linear motor one (305) is fixedly installed on the right-angle frame (304). The driving end of the linear motor one (305) is connected to a driving connecting rod (306). A rotating wheel (307) is rotatably installed on the driving connecting rod (306). A rolling groove (308) is arranged on the rotating wheel (307). The flame spray gun (1) is fixedly installed on one side of the rotating block (302). A steel rope (4) is fixedly connected between the two fixed frames (2). The steel ropes (4) are symmetrically arranged on the fixed frames (2). The bottom of the moving frame (3) is slidably installed on the steel rope (4). A motor one (5) is fixedly installed on the top of the moving frame (3). A sliding wheel (6) is rotatably installed on the moving frame (3). The output end of the motor one (5) is drivingly connected to the sliding wheel (6). The sliding wheel (6) and the steel rope (4) form a rolling pair through point contact.

2. The post-welding straightening device for a box-shaped column beam according to claim 1, characterized in that: An annular groove (205) is arranged inside the fixed sleeve (204). A turntable (206) is movably clamped in the annular groove (205). The turntable (206) is fixedly connected to one end of the screw (201).

3. The post-welding correction device for box-shaped column beams according to claim 1, characterized in that: The sliding guiding structure includes a threaded rod (7) and a motor two (8). The motor two (8) is drivingly connected to the threaded rod (7). The slider (301) is threadedly installed on the threaded rod (7). The lower end of the threaded rod (7) is drivingly connected to the motor two (8).

4. A straightening device for a box-shaped column and beam after welding according to any one of claims 1 or 3, characterized in that: Both the upper and lower ends inside the moving frame (3) are slidably installed with sliding mounting seats (9). The upper end of the threaded rod (7) is rotatably connected to the sliding mounting seat (9). On both sides of the sliding mounting seat (9), there are wire grooves (10) that cooperate with the sliding of the moving frame (3). The second motor (8) is fixedly installed on the sliding mounting seat (9). One end of the threaded rod (7) is rotatably installed on the sliding mounting seat (9). A linear motor two (11) is fixedly installed on the moving frame (3), and the linear motor two (11) is drivingly connected to the sliding mounting seat (9).

5. A straightening device for a box-shaped column and beam after welding according to claim 1, characterized in that: A spring (309) is fixedly installed inside the rotating block (302). The other end of the spring (309) is fixedly connected to a slide bar (303). Pin holes (310) are provided on both the rotating block (302) and the slide bar (303). A pin (311) is slidably installed in the pin hole (310).

6. The straightening device for a box-shaped column and beam after welding according to claim 1, characterized in that: The right-angle frame (304) includes two long rods (312). Both of the two long rods (312) are arranged at an angle of 45° with the side surface of the rotating block (302). A roller (313) is rotatably installed at the end of the long rod (312) away from the rotating block (302), and the roller (313) is arranged parallel to the rotating block (302).

7. A straightening device for a box-shaped column and beam after welding according to any one of claims 1 or 6, characterized in that: The axis of the rotating wheel (307) and the axis connection line of the two rollers (313) are located on the same straight line.

8. The straightening device for a box-shaped column beam after welding according to claim 1, characterized in that: One end of the flame spray gun (1) is provided with a spray head (12), and the axis of the spray head (12) is perpendicular to the axis of the rotating wheel (307).

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