Automatic aligning and welding device for fire-fighting pipeline

Abstract

The invention discloses a fire-fighting pipeline automatic alignment welding device, and particularly relates to the technical field of fire-fighting pipeline welding, the fire-fighting pipeline automatic alignment welding device comprises a rack and a fire-fighting pipeline body, the rear end of the rack is fixedly provided with a welding mechanism, and the inner surface of the rack is bilaterally symmetrically provided with a clamping rotating assembly and a processing assembly; and the front part and the rear part of the inner surface of the rack are jointly provided with a slag knocking assembly. According to the automatic aligning and welding device for the fire-fighting pipelines, by arranging the clamping and rotating assembly, the fire-fighting pipeline bodies are automatically clamped, and the circle centers of the fire-fighting pipeline bodies are aligned, so that the position of a connector of the two fire-fighting pipeline bodies can be adjusted and changed in a rotating mode; by means of the pipeline butt-joint device, poor welding caused by pipeline position deviation can be effectively eliminated, it is guaranteed that the position is accurate and the angle is appropriate during pipeline butt-joint, the pipeline alignment degree in the welding process can be guaranteed, welding uniformity and sealing performance can be guaranteed, and the quality and stability of pipeline joints are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of fire pipeline welding, and particularly relates to an automatic alignment welding device for fire pipelines. Background Art

[0002] Fire pipelines are an important part of the fire protection system, which are mainly used to transport fire-fighting water or other fire extinguishing media to ensure that buildings can quickly and effectively extinguish fires in case of a fire. Fire pipelines are usually made of materials such as galvanized steel pipes, seamless steel pipes, and stainless steel pipes with relatively high corrosion resistance and strength.

[0003] Chinese Patent Publication No. CN119216985B discloses an automatic alignment welding device for fire pipelines, including a conveying frame. Two symmetrically arranged conveying mechanisms are provided on the conveying frame, and an installation frame is provided at the middle position of the conveying frame. A first electric push rod is provided at the lower part of the installation frame, a first sliding mechanism is provided on the installation frame, and three locking mechanisms evenly distributed from front to back are also provided on the installation frame. The first sliding mechanism is connected to the last locking mechanism on the installation frame. The three groups of locking mechanisms provided in this solution can cooperate with the conveying mechanism, and one of the locking mechanisms can be adjusted in distance according to welding requirements to facilitate the fixed alignment operation of two-section and three-section fire pipelines. Moreover, the alignment operation is simple and fast, thereby improving the efficiency of alignment welding of fire pipelines. However, the above patent document still has the following defects in the implementation process:

[0004] Although the above patent can achieve the fixed alignment operation of two-section and three-section fire pipelines in the implementation process, it cannot rotate the fixed fire pipeline, and at the same time, it cannot perform grinding and grooving on the fire pipeline and cleaning the welding slag after welding. Summary of the Invention

[0005] The main purpose of the present invention is to provide an automatic alignment welding device for fire pipelines, which can effectively solve the problems that the fixed fire pipeline cannot be rotated, and at the same time, the grinding and grooving of the fire pipeline and the cleaning of the welding slag after welding cannot be realized.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is: an automatic alignment welding device for fire pipelines, including a frame and a fire pipeline body. A welding mechanism is fixedly installed at the rear end of the frame, a control box is fixedly installed in the middle of the front end of the frame, clamping and rotating components and processing components are symmetrically arranged on the left and right inner surfaces of the frame, and slag knocking components are jointly arranged at the front and rear parts of the inner surface of the frame.

[0007] Preferably, the clamping and rotating assembly includes two chute plates fixedly connected to the inner surface of the frame. A placement plate is fixedly connected to the inner surface of the frame. A placement and conveying mechanism is jointly arranged on the inner surfaces of the two chute plates. A rotating mechanism is arranged on the outer surface of the placement and conveying mechanism. A clamping mechanism is arranged at the lower end of the placement and conveying mechanism.

[0008] Preferably, the placement and conveying mechanism includes two first threaded rods rotatably connected through the right end of the frame and extending to the left part of the inner surface of the chute plate. Two circular ring frames slidably connected to the inner surface of the chute plate are threadedly connected to the outer surfaces of the two first threaded rods. Groove rings are rotatably connected to the inner surfaces of the two circular ring frames. A first pulley group is jointly fixedly connected to the right parts of the outer surfaces of the two first threaded rods. A first servo motor fixedly connected to the right end of the frame is fixedly connected to the right end of the first threaded rod at the front.

[0009] Preferably, the rotating mechanism includes two second fixing blocks fixedly connected to the front parts of the outer surfaces of the two circular ring frames. A round rod is jointly fixedly connected to the inner surfaces of the two second fixing blocks. A dual-axis motor fixedly connected to the right second fixing block is fixedly connected to the right end of the round rod. Two gears are fixedly connected to the outer surface of the round rod. Tooth rings meshing with the gears are fixedly connected to the right ends of the two groove rings.

[0010] Preferably, the clamping mechanism includes a connecting plate jointly fixedly connected to the lower ends of the two circular ring frames. Two first fixing blocks are fixedly connected to the upper end of the connecting plate. A second threaded rod is rotatably connected to the inner surfaces of the two first fixing blocks. A second pulley group is jointly fixedly connected to the outer surfaces of the second threaded rod and the rotating rod at the right output end of the dual-axis motor. A placement box is fixedly connected to the upper end of the connecting plate. A push plate slidably connected to the inner surface of the placement box is threadedly connected to the outer surface of the second threaded rod. A first connecting pipe is fixedly connected through the left part of the inner surface of the placement box and extends to the inner surfaces of the two circular ring frames.

[0011] Preferably, three hollow blocks are fixedly connected to the inner surfaces of the two groove rings in an annular and equally spaced manner. A first piston rod is slidably connected to the inner surface of the three hollow blocks on the same side. Clamping plates are fixedly connected to the mutually approaching ends of the three first piston rods on the same side.

[0012] Preferably, the processing assembly includes rectangular plates symmetrically and fixedly connected to the left and right of the inner surface of the frame. A beveling mechanism and a cleaning mechanism are symmetrically arranged on the inner surfaces of the two rectangular plates.

[0013] Preferably, the beveling mechanism includes a hollow rod fixedly connected to the inner surface of the rectangular plate. A second piston rod is slidably connected to the inner surface of the hollow rod. The lower part of the inner surface of the hollow rod penetrates and extends to the inner surface of the first connecting pipe and is fixedly connected to a second connecting pipe. A solenoid valve is fixedly connected to the common intersection of the outer surfaces of the first connecting pipe and the second connecting pipe. The upper end of the second piston rod is fixedly connected to a second servo motor. The output end of the second servo motor is fixedly connected to a grinding disc through a rotating rod.

[0014] Preferably, the cleaning mechanism includes an L-shaped plate fixedly connected to the rear end of the second piston rod. A cleaning brush is fixedly connected to the upper end of the L-shaped plate.

[0015] Preferably, the slag knocking assembly includes a square plate and a retaining plate fixedly connected to the front and rear parts of the inner surface of the frame. A rotating shaft is rotatably connected through the middle of the front end of the frame and extends to the rear end of the frame. The front end of the rotating shaft is fixedly connected to a third servo motor fixedly connected to the front end of the frame. A slag knocking rod is slidably connected to the common inner surface of the square plate and the retaining plate. A spring is sleeved on the outer surface of the slag knocking rod. The two ends of the spring are respectively fixedly connected to the upper end of the square plate and the lower end of the retaining plate. A cam is fixedly connected to the middle of the outer surface of the rotating shaft.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In the present invention, by providing a clamping and rotating assembly, automatic clamping and centering operations are realized on the fire pipeline body, so that the interfaces of the two fire pipeline bodies can be adjusted and changed in the interface position by rotating, which can effectively eliminate welding defects caused by pipeline position deviation, ensure accurate position and appropriate angle when the pipelines are butted, can ensure the alignment of the pipelines during the welding process, and can ensure the uniformity and tightness of welding, improving the quality and stability of the pipeline joints.

[0018] 2. In the present invention, by providing a rotating mechanism, a beveling mechanism and a cleaning mechanism, in the cooperation of the rotation of the grinding disc and the rotation of the fire pipeline body, the uneven surface or oxide layer on the pipeline surface is effectively removed, ensuring a clean and smooth surface during welding, reducing welding defects. In addition, the cleaning brush cleans the debris generated during the grinding process in real time, avoiding pollution of the pipeline surface, improving the welding quality and tightness. The grinding and cleaning processes reduce the errors of manual operations, improving the alignment accuracy and welding reliability.

[0019] 3. In the present invention, by providing a slag knocking component, after welding the fire pipeline body, under the up-and-down movement of the slag knocking rod, the upper end of the slag knocking rod can cooperate with the rotation of the fire pipeline body to clean the welding slag at the welding joint, capable of removing the welding slag and impurities generated during welding, ensuring the cleanliness of the welding surface, avoiding the rusting of the welding slag from affecting the subsequent welding quality or sealing performance, improving the flatness and sealing performance of the welding surface, thereby enhancing the reliability of the pipeline connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 is a schematic diagram of the partial structure of the present invention;

[0022] Figure 3 is a schematic diagram of the chute plate and the placement plate structure of the present invention;

[0023] Figure 4 is a schematic diagram of the clamping and rotating component, the processing component and the slag knocking component of the present invention;

[0024] Figure 5 is a schematic diagram of the cross-sectional structure of the placement and conveying mechanism of the present invention;

[0025] Figure 6 is a schematic diagram of the rotating mechanism of the present invention;

[0026] Figure 7 is a schematic diagram of the cross-sectional structure of the clamping mechanism of the present invention;

[0027] Figure 8 of the present invention Figure 7 is an enlarged schematic diagram of the structure at A;

[0028] Figure 9 is a schematic diagram of the cross-sectional structure of the processing component of the present invention;

[0029] Figure 10 is a schematic diagram of the slag knocking component of the present invention.

[0030] In the figure: 1, frame; 2, welding mechanism; 3, control box; 4, fire pipeline body; 5, clamping and rotating assembly; 51, chute plate; 52, placement plate; 53, placement and conveying mechanism; 531, first threaded rod; 532, circular ring frame; 533, groove ring; 534, first pulley group; 535, first servo motor; 54, clamping mechanism; 541, connecting plate; 542, first fixed block; 543, second pulley group; 544, second threaded rod; 545, push plate; 546, first connecting pipe; 547, hollow block; 548, first piston rod; 549, clamping plate; 5410, placement box; 55, rotating mechanism; 551, second fixed block; 552, round rod; 553, toothed ring; 554, gear; 555, biaxial motor; 6, processing assembly; 61, rectangular plate; 62, beveling mechanism; 621, hollow rod; 622, second connecting pipe; 623, solenoid valve; 624, second piston rod; 625, second servo motor; 626, grinding disc; 63, cleaning mechanism; 631, L-shaped plate; 632, cleaning brush; 7, slag knocking assembly; 71, square plate; 711, rotating shaft; 712, third servo motor; 713, holding plate; 714, slag knocking rod; 715, cam; 716, spring. Detailed implementation mode

[0031] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with the specific implementation modes.

[0032] Example 1, as Figure 1 and Figure 2 shown, an automatic alignment welding device for fire pipelines includes a frame 1 and a fire pipeline body 4. A welding mechanism 2 is fixedly installed at the rear end of the frame 1, a control box 3 is fixedly installed in the middle of the front end of the frame 1, a clamping and rotating assembly 5 and a processing assembly 6 are symmetrically arranged on the left and right inner surfaces of the frame 1, and a slag knocking assembly 7 is jointly arranged at the front and rear parts of the inner surface of the frame 1.

[0033] In the process of implementing this embodiment, the fire pipeline body 4 is placed on the clamping and rotating assembly 5 through relevant hoisting equipment, and then the fire pipeline body 4 is pushed into the inner cavity of the clamping and rotating assembly 5. At this time, the control box 3 is operated to clamp the fire pipeline body 4 and convey and dock the fire pipeline body 4. During the conveying process, the fire pipeline body 4 is driven to rotate, and the processing assembly 6 is used to bevel, grind and clean the interface of the fire pipeline body 4. When the two fire pipeline bodies 4 move closer to each other to a set position, the welding mechanism 2 first spot-welds and then fills the welds at the bevels of the two rotating fire pipeline bodies 4. After welding, the slag knocking assembly 7 is used to knock the welding slag at the welding place.

[0034] The welding mechanism 2 mentioned above is a mature welding technology means and equipment in the prior art. In this solution, its function of welding the fire pipeline body 4 is utilized, and its internal structure, connection method and principle will not be elaborated further.

[0035] The control box 3 mentioned above is a mature control technology means and equipment in the prior art. In this solution, its controllable function is utilized, and its internal structure, connection method and principle will not be elaborated further.

[0036] Specifically, in order to realize the automatic symmetry and rotation of the fire pipeline body 4, refer to Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 , in this embodiment, the clamping and rotating assembly 5 includes two chute plates 51 fixedly connected to the inner surface of the frame 1. A placing plate 52 is fixedly connected to the inner surface of the frame 1. A placing and conveying mechanism 53 is jointly arranged on the inner surfaces of the two chute plates 51. A rotating mechanism 55 is arranged on the outer surface of the placing and conveying mechanism 53. A clamping mechanism 54 is arranged at the lower end of the placing and conveying mechanism 53.

[0037] Furthermore, refer to Figure 4 and Figure 5 , in this embodiment, the placing and conveying mechanism 53 includes two first threaded rods 531 that penetrate through the right end of the frame 1 and extend to the left part of the inner surface of the chute plate 51 and are rotationally connected. Two ring frames 532 that are threadedly connected to the outer surfaces of the two first threaded rods 531 and are slidably connected to the inner surfaces of the chute plates 51. Groove rings 533 are rotationally connected to the inner surfaces of the two ring frames 532. A first pulley group 534 is jointly fixedly connected to the right parts of the outer surfaces of the two first threaded rods 531. A first servo motor 535 fixedly connected to the right end of the frame 1 is fixedly connected to the right end of the front first threaded rod 531.

[0038] During the implementation process, place the fire pipeline body 4 on the placing plate 52, and use relevant equipment to push the fire pipeline body 4 into the inner cavities of the two ring frames 532. Perform the clamping and fixing operation on the position of the fire pipeline body 4 through the clamping mechanism 54. When it is necessary to align the two fire pipeline bodies 4, start the output end of the first servo motor 535 to drive the front first threaded rod 531 to rotate through a coupling. Drive the rear first threaded rod 531 to rotate under the transmission of the first pulley group 534. Due to the threaded connection, the two ring frames 532 drive the clamped fire pipeline body 4 in the inner cavities of the chute plates 51 to move closer to each other, ensuring that the docking positions of the two fire pipeline bodies 4 are at the same height, avoiding poor welding caused by deviation, enabling the fire pipeline body 4 to move closer smoothly and evenly, thereby improving the quality and precision of welding.

[0039] Furthermore, referring to Figure 4 and Figure 6 , in this embodiment, the rotating mechanism 55 includes two second fixing blocks 551 fixedly connected to the front part of the outer surfaces of the two ring frames 532. A round rod 552 is fixedly connected to the common inner surfaces of the two second fixing blocks 551. A double-shaft motor 555 fixedly connected to the right second fixing block 551 is fixedly connected to the right end of the round rod 552. Two gears 554 are fixedly connected to the outer surface of the round rod 552. Tooth rings 553 meshing with the gears 554 are fixedly connected to the right ends of the two groove rings 533 respectively.

[0040] Furthermore, referring to Figure 4 , Figure 7 and Figure 8 , in this embodiment, the clamping mechanism 54 includes a connecting plate 541 fixedly connected to the lower ends of the two ring frames 532. Two first fixing blocks 542 are fixedly connected to the upper end of the connecting plate 541. A second threaded rod 544 is rotatably connected to the common inner surfaces of the two first fixing blocks 542. A second pulley group 543 is fixedly connected to the outer surfaces of the second threaded rod 544 and the rotating rod fixedly connected to the right output end of the double-shaft motor 555. A placement box 5410 is fixedly connected to the upper end of the connecting plate 541. A push plate 545 threadedly connected to the outer surface of the second threaded rod 544 and slidably connected to the inner surface of the placement box 5410 is provided. A first connecting pipe 546 penetrates through the left part of the inner surface of the placement box 5410 and extends to and is fixedly connected to the common inner surfaces of the two ring frames 532.

[0041] Furthermore, referring to Figure 4 , Figure 7 and Figure 8 , in this embodiment, three hollow blocks 547 are fixedly connected to the inner surfaces of the two groove rings 533 in an annular and equally spaced manner. A first piston rod 548 is slidably connected to the inner surfaces of the three hollow blocks 547 on the same side. Clamping plates 549 are fixedly connected to the mutually approaching ends of the three first piston rods 548 on the same side.

[0042] As can be seen from the above, when the automatic clamping of the fire pipeline body 4 is required, the right end output of the double-shaft motor 555 drives the rotating rod to rotate through a coupling at this time. Under the driving action of the pulley group two 543, the threaded rod two 544 rotates. Since the push plate 545 is threadedly connected to the threaded rod two 544, the push plate 545 moves leftward in the inner cavity of the placement box 5410, and the hydraulic oil in the inner cavity of the placement box 5410 enters the space formed by the circular ring frame 532 and the groove ring 533 through the two connecting pipes one 546, and then enters the hollow block 547, pushing the three piston rods one 548 to slide in the hollow block 547, and the clamping plates 549 on the three piston rods one 548 are mutually close to squeeze on the outer surface of the fire pipeline body 4, realizing the clamping and fixing of the fire pipeline body 4, so that the centers of the two fire pipeline bodies 4 can be on the same horizontal plane, completing automatic alignment. The automatic clamping and alignment methods not only improve the welding accuracy, avoid the errors that may be caused by manual operation, but also greatly improve the operation efficiency and safety, ensuring stable welding quality and firm pipeline connection.

[0043] Secondly, when the fire pipeline body 4 needs to be rotated, the left end output of the double-shaft motor 555 drives the gear 554 on the round rod 552 to rotate through a coupling at this time. Under the meshing connection, the toothed ring 553 drives the groove ring 533 to rotate on the inner surface of the circular ring frame 532, realizing the rotation of the fire pipeline body 4, so that the interfaces of the two fire pipeline bodies 4 can be adjusted and changed in the interface position by rotation, which can effectively eliminate the poor welding caused by the pipeline position deviation, ensure accurate position and appropriate angle when the pipelines are butted, ensure the alignment degree of the pipelines during the welding process, reduce the manual operation error, avoid the welding defects caused by improper manual operation, ensure the uniformity and sealing performance of the welding, improve the quality and stability of the pipeline joints, thereby improving the welding accuracy and extending the service life.

[0044] The pulley group one 534 and the pulley group two 543 in the above are both composed of two pulleys and a belt.

[0045] The double-shaft motor 555 in the above is a mature driving technology means and equipment in the prior art. In this solution, its two sides' couplings can rotate independently and stop after rotating a set number of turns. The internal structure, connection method and principle are not elaborated here.

[0046] The connecting pipe one 546 and the connecting pipe two 622 in the above are both flexible hoses.

[0047] Embodiment 2. On the basis of Embodiment 1, this embodiment adds a processing component 6 for grooving and grinding the outer surface of the weld joint of the fire pipeline body 4, so as to achieve the purpose of grooving and grinding the outer surface of the weld joint of the fire pipeline body 4.

[0048] Specifically, in order to be able to perform bevel grinding on the outer surface of the welded joint of the fire pipeline body 4, referring to Figure 4 and Figure 9 , in this embodiment, the processing component 6 includes a rectangular plate 61 fixedly connected to the inner surface of the frame 1 symmetrically left and right. On the inner surfaces of the two rectangular plates 61, a bevel mechanism 62 and a cleaning mechanism 63 are symmetrically arranged.

[0049] Furthermore, referring to Figure 4 and Figure 9 , in this embodiment, the bevel mechanism 62 includes a hollow rod 621 fixedly connected to the inner surface of the rectangular plate 61. A piston rod two 624 is slidably connected to the inner surface of the hollow rod 621. A connecting pipe two 622 is fixedly connected to the inner surface of the lower part of the hollow rod 621 and penetrates and extends to the inner surface of the connecting pipe one 546. A solenoid valve 623 is fixedly connected to the common intersection of the outer surfaces of the connecting pipe one 546 and the connecting pipe two 622. The upper end of the piston rod two 624 is fixedly connected to a servo motor two 625. The output end of the servo motor two 625 is fixedly connected to a grinding disc 626 through a rotating rod.

[0050] Furthermore, referring to Figure 4 and Figure 9 , in this embodiment, the cleaning mechanism 63 includes an L-shaped plate 631 fixedly connected to the rear end of the piston rod two 624. A cleaning brush 632 is fixedly connected to the upper end of the L-shaped plate 631.

[0051] During the implementation process, when the fire pipeline body 4 moves to the set position, at this time, the solenoid valve 623 is controlled to close the connecting pipe one 546 and open the connecting pipe two 622, so that the push plate 545 continues to move to the left, injecting hydraulic oil into the inner cavity of the hollow rod 621 through the connecting pipe two 622, pushing the piston rod two 624 to move upward, so that the grinding disc 626 moves to the outer surface of the fire pipeline body 4. Start the output end of the servo motor two 625 to drive the grinding disc 626 on the rotating rod to rotate through a coupling, realizing the grinding operation on the outer surface of the interface of the fire pipeline body 4. Then, cooperate with the rotating mechanism 55 to drive the fire pipeline body 4 to rotate, realizing the 360-degree grinding of the outer surface of the fire pipeline body 4 to form a bevel. And during the grinding process, the bristles on the cleaning brush 632 can stick to the outer surface of the fire pipeline body 4 to clean the debris generated by grinding, realizing cleaning while grinding, providing an ideal interface shape for alignment welding. The rotation of the grinding disc 626 and the rotation of the fire pipeline body 4 cooperate to effectively remove the unevenness or oxide layer on the pipeline surface, ensure that the surface is clean and smooth during welding, reduce welding defects. In addition, the cleaning brush 632 timely cleans the debris generated during the grinding process, avoids polluting the pipeline surface, improves the welding quality and sealing performance. The grinding and cleaning process reduces the error of manual operation, improves the alignment accuracy and the reliability of welding.

[0052] The grinding disc 626 mentioned above is a mature grinding part in the prior art. In this solution, its function of grinding the outer surface of the fire pipeline body 4 is utilized, and its material and principle will not be elaborated further.

[0053] The solenoid valve 623 mentioned above is a mature control technology means and device in the prior art. In this solution, its function of controlling the movement direction of the fluid is utilized, and its internal structure, connection method and principle will not be elaborated further.

[0054] Example 3. In order to knock the welding slag after welding, refer to Figure 4 and Figure 10 . In this example, the slag knocking assembly 7 includes a square plate 71 and a retaining plate 713 which are fixedly connected to the front and rear inner surfaces of the frame 1. A rotating shaft 711 is rotatably connected through the middle of the front end of the frame 1 and extends to the rear end of the frame 1. A servo motor three 712 fixedly connected to the front end of the frame 1 is fixedly connected to the front end of the rotating shaft 711. A slag knocking rod 714 is slidably connected to the common inner surface of the square plate 71 and the retaining plate 713. A spring 716 is sleeved on the outer surface of the slag knocking rod 714. Both ends of the spring 716 are fixedly connected to the upper end of the square plate 71 and the lower end of the retaining plate 713 respectively. A cam 715 is fixedly connected to the middle of the outer surface of the rotating shaft 711.

[0055] During the implementation process, when the welding of the two fire pipeline bodies 4 is completed, at this time, the rear end output of the servo motor three 712 drives the cam 715 on the rotating shaft 711 to rotate through a coupling, so that the cam 715 can intermittently squeeze the semi-sphere at the lower end of the slag knocking rod 714, so that the slag knocking rod 714 can move up and down on the inner surfaces of the square plate 71 and the retaining plate 713, so that the spring 716 is in a deformed state. The upper end of the slag knocking rod 714 can cooperate with the rotation of the fire pipeline body 4 to clean the welding slag at the welding place, which can remove the welding slag and impurities generated during the welding process, ensure the cleanliness of the welding surface, avoid the rust of the welding slag affecting the subsequent welding quality or sealing performance, improve the flatness and sealing performance of the welding surface, and thus enhance the reliability of the pipeline connection.

[0056] The servo motor one 535, the servo motor two 625 and the servo motor three 712 mentioned above are all mature driving technology means and devices in the prior art. In this solution, their couplings can rotate forward and backward and can stop in time after a set number of turns, and their internal structures, connection methods and principles will not be elaborated further.

[0057] Workflow: During use, the fire pipeline body 4 is placed through the placement and conveying mechanism 53. Subsequently, under the action of the clamping mechanism 54, the fire pipeline body 4 is clamped and fixed, enabling the automatic alignment of the centers of the two fire pipeline bodies 4. Then, the fire pipeline body 4 is rotated by the rotating mechanism 55, and in cooperation with the beveling mechanism 62 and the cleaning mechanism 63, grinding and cleaning operations are carried out on the outer surface of the interface. The rotation of the fire pipeline body 4 can continuously adjust the docking position. After welding, the slag knocking assembly 7 cooperates with the rotation of the fire pipeline body 4 to carry out slag cleaning operations.

[0058] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles 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 all these changes and improvements fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A fire protection pipe automatic alignment welding device, comprising a frame (1) and a fire protection pipe body (4), characterized in that: A welding mechanism (2) is fixedly mounted at the rear end of the frame (1), a control box (3) is fixedly mounted at the middle of the front end of the frame (1), a clamping and rotating assembly (5) and a processing assembly (6) are symmetrically arranged on the inner surface of the frame (1), and a slag knocking assembly (7) is commonly arranged at the front and rear of the inner surface of the frame (1).

2. The automatic alignment welding device for fire protection pipes according to claim 1 is characterized in that: The clamping and rotating assembly (5) comprises two slide plates (51) fixedly connected to the inner surface of the frame (1); the inner surface of the frame (1) is fixedly connected to a placement plate (52); the inner surfaces of the two slide plates (51) are jointly provided with a placement and conveying mechanism (53); the outer surface of the placement and conveying mechanism (53) is provided with a rotating mechanism (55); and the lower end of the placement and conveying mechanism (53) is provided with a clamping mechanism (54).

3. The automatic alignment welding device for fire protection pipes according to claim 2 is characterized in that: The placement and conveying mechanism (53) comprises two threaded rods (531) penetrating the right end of the frame (1) and extending to the left part of the inner surface of the slide plate (51) for rotational connection; the outer surfaces of the two threaded rods (531) are threadedly connected with two circular ring frames (532) which are slidably connected with the inner surface of the slide plate (51); the inner surfaces of the two circular ring frames (532) are both rotationally connected with groove rings (533); the right parts of the outer surfaces of the two threaded rods (531) are commonly fixedly connected with a pulley group (534); and the right end of the threaded rod (531) located at the front is fixedly connected with a servo motor (535) which is fixedly connected with the right end of the frame (1).

4. The automatic alignment welding device for fire protection pipes according to claim 3 is characterized in that: The rotating mechanism (55) comprises two second fixing blocks (551) fixedly connected to the front of the outer surfaces of the two circular ring frames (532); the inner surfaces of the two second fixing blocks (551) are commonly fixedly connected to a round rod (552); the right end of the round rod (552) is fixedly connected to a double-axis motor (555) located and fixedly connected to the right second fixing block (551); the outer surface of the round rod (552) is fixedly connected to two gears (554); and the right ends of the two groove rings (533) are fixedly connected to a gear ring (553) meshing with the gear (554).

5. The fire protection pipe automatic alignment welding device according to claim 4, characterized in that: The clamping mechanism (54) comprises a connecting plate (541) fixedly connected to the lower ends of the two circular frames (532); the upper end of the connecting plate (541) is fixedly connected to two fixing blocks (542); the inner surfaces of the two fixing blocks (542) are rotatably connected to threaded rods (544); the outer surface of the threaded rods (544) and the outer surface of a rotating rod fixedly connected to the right output end of the dual-axis motor (555) are fixedly connected to a pulley group (543); the upper end of the connecting plate (541) is fixedly connected to a placement box (5410); the outer surface of the threaded rods (544) is threadedly connected to a push plate (545) slidably connected to the inner surface of the placement box (5410); the left part of the inner surface of the placement box (5410) penetrates and extends to the inner surfaces of the two circular frames (532) and is fixedly connected to a connecting pipe (546).

6. The automatic alignment welding device for fire protection pipes according to claim 3, characterized in that: The inner surfaces of the two groove rings (533) are both annularly and equidistantly distributed and fixedly connected with three hollow blocks (547); the inner surfaces of the three hollow blocks (547) on the same side are both slidably connected with a piston rod (548); and the ends of the three piston rods (548) on the same side that are close to each other are all fixedly connected with a clamping plate (549).

7. The automatic alignment welding device for fire protection pipes according to claim 5, characterized in that: The processing assembly (6) comprises a rectangular plate (61) fixedly connected to the inner surface of the frame (1) in a left-right symmetrical manner, and the inner surfaces of the two rectangular plates (61) are symmetrically provided with a groove mechanism (62) and a cleaning mechanism (63).

8. The automatic alignment welding device for fire protection pipes according to claim 7, characterized in that: The groove mechanism (62) comprises a hollow rod (621) fixedly connected to the inner surface of the rectangular plate (61); the inner surface of the hollow rod (621) is slidably connected to a second piston rod (624); the lower portion of the inner surface of the hollow rod (621) penetrates and extends to the inner surface of the first connecting pipe (546) and is fixedly connected to the second connecting pipe (622); the intersection of the outer surface of the first connecting pipe (546) and the outer surface of the second connecting pipe (622) is fixedly connected to a solenoid valve (623); the upper end of the second piston rod (624) is fixedly connected to a second servo motor (625); the output end of the second servo motor (625) is fixedly connected to a grinding disc (626) via a rotating rod.

9. The automatic alignment welding device for fire protection pipes according to claim 8, characterized in that: The cleaning mechanism (63) comprises an L-shaped plate (631) fixedly connected to the rear end of the second piston rod (624), and a cleaning brush (632) is fixedly connected to the upper end of the L-shaped plate (631).

10. The automatic alignment welding device for fire protection pipes according to claim 1, characterized in that: The slag knocking assembly (7) comprises a square plate (71) and a retaining plate (713) which are fixedly connected to the front and rear parts of the inner surface of the frame (1); a rotating shaft (711) passes through the middle part of the front end of the frame (1) and extends to the rear end of the frame (1) and is rotatably connected thereto; a servo motor (712) which is fixedly connected to the front end of the frame (1) is fixedly connected to the front end of the rotating shaft (711); a slag knocking rod (714) is slidably connected to the inner surfaces of the square plate (71) and the retaining plate (713); a spring (716) is sleeved on the outer surface of the slag knocking rod (714); two ends of the spring (716) are respectively fixedly connected to the upper end of the square plate (71) and the lower end of the retaining plate (713); and a cam (715) is fixedly connected to the middle part of the outer surface of the rotating shaft (711).

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