Plasma welding device for construction engineering construction

Abstract

The invention relates to the technical field of plasma arc welding, and discloses a plasma welding device for construction engineering construction.The plasma welding device for construction engineering construction comprises a bottom plate, a supporting square pipe is fixedly installed at the bottom of the bottom plate, a prefabricated tubular column is arranged outside the bottom plate, and a rotating assembly is arranged on the bottom plate; the rotating assembly comprises a connecting frame. According to the plasma welding device for construction engineering construction, in order to avoid positioning deviation caused by manual adjustment, a rotating assembly is arranged, the rotating assembly is matched with a first motor to drive a threaded rod to rotate, a sliding plate is driven to slide in a guiding mode along a limiting square rod, and the distance between a mounting frame and a tubular column is flexibly adjusted; the second motor drives the mounting shell to rotate in the cylinder, and the circumferential welding requirement of the tubular column is met; a third motor drives a short rod to drive a circular plate to rotate, an arc-shaped groove drags a sliding rod to slide along a vertical groove through a thin rod, and the multiple sets of rubber blocks are expanded outwards from the interior of the circular pipe column and attached to the inner wall of the circular pipe column to fix a workpiece.

Description

Technical Field

[0001] This invention relates to the field of plasma arc welding technology, specifically to a plasma welding device for construction engineering. Background Technology

[0002] In the field of construction engineering, the welding quality of key structures such as steel frame structures, pipeline laying, and bridge bearings directly determines the load-bearing capacity and durability of the project.

[0003] The plasma welding device consists of a plasma arc generating system, a welding torch assembly, a traveling mechanism, a shielding gas supply unit, and an intelligent control system. The operator selects preset process parameters according to the welding material and thickness, installs the traveling track and fixes the welding torch. After starting the equipment, the system automatically completes the entire process of arc ignition, wire feeding, welding, and arc termination. During the process, welding data is displayed in real time, and the system automatically cuts off the arc in case of abnormality.

[0004] However, the above-mentioned equipment has obvious shortcomings in use. Traditional plasma welding equipment requires adjusting the bolts point by point, and the clamps need to be replaced when adapting to different pipe diameters. In small-batch, multi-specification construction, the downtime is long, which seriously delays the construction period. In view of this, we propose a plasma welding equipment for construction projects. Summary of the Invention

[0005] The purpose of this invention is to provide a plasma welding device for construction engineering, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A plasma welding device for construction engineering includes a base plate, on which a supporting square tube is fixedly installed at the bottom; a prefabricated circular column is provided on the outside of the base plate; and a rotating assembly is provided on the base plate, the rotating assembly comprising: A connecting frame is fixedly installed on the bottom of the base plate. A plasma welding robotic arm is installed on the connecting frame. An installation plate is fixedly installed on the bottom of the base plate. A No. 1 motor is fixedly installed on the installation plate. A threaded rod is fixedly installed on the output end of the No. 1 motor. A sliding plate is threaded onto the threaded rod. A limiting square rod is fixedly installed on the slide plate. One end of the mounting bracket is fixedly installed on the slide plate, and a cylinder is fixedly installed on the other end of the mounting bracket. A second motor is fixedly installed on the cylinder. One end of the mounting shell is fixedly installed on the output end of the second motor, and a round block is fixedly installed on the other end of the mounting shell. Motor No. 3 is fixedly installed on the circular block. One end of a short rod is fixedly installed at the output end of the motor No. 3. A circular plate is fixedly installed at the other end of the short rod. An arc-shaped groove is opened on the circular plate. A vertical groove is opened on the circular block. A sliding rod is slidably installed on the circular block. A rubber block is fixedly installed on the sliding rod. A thin rod is fixedly installed on the sliding rod.

[0007] In a further embodiment, the mounting plate, motor number one, threaded rod, sliding plate, limiting square rod, mounting bracket, cylinder, motor number two, mounting shell, round block, motor number three, short rod, round plate, arc groove, vertical groove, sliding rod, rubber block and thin rod are provided in multiple sets.

[0008] In a further embodiment, the sliding plate is threadedly mounted on the threaded rod, the limiting square rod slides inside the supporting square tube, the mounting shell is rotatably mounted inside the cylinder, the short rod passes through the circular block, the thin rod slides inside the vertical groove and the arc groove, the No. 3 motor is located inside the mounting shell, and multiple sets of rubber blocks are located inside the prefabricated circular column.

[0009] In a further embodiment, a support assembly is provided on the base plate. The support assembly includes a support plate, on which the support plate is fixedly mounted. A support frame is fixedly mounted on the support plate. A support roller is rotatably mounted on the support frame. A rubber ball is rotatably mounted on the support roller. One end of a short spring rod is fixedly mounted on the support plate. A hinge frame is fixedly mounted on the other end of the short spring rod. A circular roller is rotatably mounted on the hinge frame. A rubber ring is fixedly mounted on the circular roller. A support tube is fixedly mounted on the support plate. A short plate is fixedly mounted on the hinge frame. A limit rod is fixedly mounted on the short plate. A limit tube is fixedly mounted on the support tube.

[0010] In a further embodiment, multiple sets of the support plate, support frame, support roller, rubber ball, short spring rod, hinge frame, circular roller, rubber ring, support tube, short plate, limiting rod, and limiting tube are provided. The multiple sets of rubber balls are attached to the surface of the precast circular column, the rubber ring is attached to the bottom of the precast circular column, and the limiting rod slides inside the limiting tube.

[0011] In a further embodiment, an auxiliary component is provided on the cylinder. The auxiliary component includes a mounting block. The mounting block is fixedly mounted on the cylinder. One end of a long spring rod is fixedly mounted on the mounting block. The other end of the long spring rod is fixedly mounted on one side of a circular ring plate. A limit ring is fixedly mounted on the circular block. A circular rod is fixedly mounted on the rubber block. A sliding groove is formed on the circular block. An auxiliary ring is rotatably mounted on the other side of the circular ring plate.

[0012] In a further embodiment, multiple sets of the mounting block, long spring rod, circular plate, limiting ring, round rod, and sliding groove are provided. The auxiliary ring is attached to both sides of the precast circular column, and multiple sets of the round rod slide inside multiple sets of sliding grooves.

[0013] In a further embodiment, the rubber block is provided with an anti-slip component, which includes a circular groove. The rubber block has a circular groove, the sliding rod has an installation groove, and the rubber block has a hollow groove in the middle. An isolation ring is fixedly installed inside the sliding rod, a detection device is fixedly installed below the isolation ring, and a laser head is fixedly installed on the detection device. One end of a helical spring is fixedly installed above the isolation ring, and one end of a hinge block is fixedly installed at the other end of the helical spring. A ball is rotatably installed at the other end of the hinge block, and a connecting groove is provided on the hinge block. An auxiliary groove is provided inside the rubber block, a limiting vertical rod is fixedly installed inside the rubber block, a sliding block is fixedly installed on the hinge block, and a limiting groove is provided on the sliding block. A double-headed hydraulic device is fixedly installed inside the rubber block, and a compression plate is fixedly installed on the piston end of the double-headed hydraulic device.

[0014] In a further embodiment, multiple sets of the circular groove, mounting groove, empty groove, isolation ring, detection device, laser head, helical spring, hinge block, sphere, connecting groove, auxiliary groove, limiting vertical rod, sliding block, limiting groove, double-headed hydraulic device, and extrusion plate are provided.

[0015] In a further embodiment, the isolation ring, detection device, laser head, and helical spring are disposed inside the mounting groove; the hinge block slides inside the circular groove; the sliding block slides inside the auxiliary groove; the limiting vertical rod slides inside the limiting groove; the double-headed hydraulic device and extrusion plate are disposed inside the empty groove; the laser head is disposed below the hinge block and the sphere; the connecting groove is disposed directly above the laser head; the sphere is attached to the upper part of the connecting groove; the lower part of the rubber block is made of rigid material; and the upper part of the rubber block is made of flexible material.

[0016] Compared with the prior art, the present invention provides a plasma welding device for construction engineering, which has the following beneficial effects: 1. The plasma welding device used in this construction project is equipped with a rotating component to avoid positioning deviations caused by manual adjustment. This component works in conjunction with a No. 1 motor to drive a threaded rod to rotate, causing a sliding plate to slide along a limit rod guide, flexibly adjusting the distance between the mounting frame and the cylindrical column. A No. 2 motor drives the mounting shell to rotate inside the cylinder to meet the circumferential welding requirements of the cylindrical column. A No. 3 motor drives a short rod to rotate a circular plate, and an arc-shaped groove pulls a sliding rod along a vertical groove through a thin rod, causing multiple sets of rubber blocks to be pushed outward from the inside of the cylindrical column and to fit against the inner wall of the cylindrical column to fix the workpiece.

[0017] 2. The plasma welding device used in this construction project is equipped with a support assembly to ensure a continuous and smooth weld bead during welding. This assembly, together with rubber balls on multiple sets of support rollers, fits tightly against the surface of the cylindrical tube, providing radial support while avoiding rigid contact that could scratch the tube wall. A short spring rod pushes the hinge frame to adaptively adjust the position of the cylindrical rollers, ensuring that the rubber ring fits tightly against the bottom of the cylindrical tube and preventing axial displacement. A limit rod slides along the limit tube to ensure precise movement of the support structure and prevent the cylindrical tube from wobbling during rotation.

[0018] 3. The plasma welding device used in this construction project is equipped with an auxiliary component to prevent weld deviation caused by uneven clamping. This component, together with a long spring rod, applies a continuous preload to the annular plate, ensuring that the auxiliary ring fits tightly against both sides of the circular tube column. This, along with the internal clamping of the rubber block, forms a double fixation, preventing radial displacement of the circular tube column during welding. The circular rod slides along the groove of the circular block, providing precise guidance for the movement of the auxiliary ring and ensuring that multiple sets of auxiliary components operate synchronously. At the same time, the mounting block is fixed on the cylinder and linked with the rotating component to ensure that the auxiliary clamping and the rotation of the circular tube column are synchronized.

[0019] 4. The plasma welding device used in this construction project is equipped with an anti-slip component to meet the stringent precision and safety requirements of high-pressure pipeline plasma welding in construction projects. This component works in conjunction with the laser head of the detection device to emit a laser beam through the connecting groove and monitor the rotation of the sphere: Under normal clamping conditions, the rubber block is tightly fitted against the inner wall of the cylindrical tube, and the sphere remains stationary due to static friction, with no fluctuation in the laser signal, proving that the clamping is stable and there is no slippage; when there is a gap between the rubber block and the inner wall of the cylindrical tube, insufficient static friction causes the sphere to rotate slightly with the cylindrical tube, and the laser signal changes due to the sphere's rotation, indicating a risk of slippage. This triggers a response from the dual-head hydraulic device, pushing the extrusion plate to apply pressure into the groove of the rubber block, causing the flexible part above the rubber block to expand upwards, increasing the contact area. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure and working state of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention in standby mode; Figure 3 This is a schematic diagram of the overall structure of the present invention in standby state from another perspective; Figure 4 This is a schematic diagram of the supporting component structure of the present invention; Figure 5 This is a schematic diagram of the supporting component structure of the present invention; Figure 6 This is a schematic diagram of the rotating component structure of the present invention; Figure 7 This is a schematic diagram of the auxiliary component structure of the present invention; Figure 8 This is a cross-sectional schematic diagram of the cylindrical structure of the present invention; Figure 9 This is a schematic diagram of the rotating component structure of the present invention; Figure 10 This is a cross-sectional schematic diagram of the rotating component structure of the present invention; Figure 11 This is a cross-sectional view of the rubber block structure of the present invention; Figure 12 This is a schematic diagram of the internal structure of the rubber block of the present invention; Figure 13 This is a cross-sectional schematic diagram of the slide bar structure of the present invention; Figure 14 This is a schematic diagram of the anti-slip component of the present invention.

[0021] Explanation of icon numbers: 1. Base plate; 2. Supporting square tube; 3. Precast round tube column; 4. Rotating assembly; 41. Connecting frame; 42. Plasma welding robotic arm; 43. Mounting plate; 44. Motor No. 1; 45. Threaded rod; 46. Slide plate; 47. Limiting square rod; 48. Mounting frame; 49. Cylinder; 410. Motor No. 2; 411. Mounting shell; 412. Round block; 413. Motor No. 3; 414. Short rod; 415. Round plate; 416. Arc groove; 417. Vertical groove; 418. Sliding rod; 419. Rubber block; 420. Thin rod; 5. Support assembly; 51. Support plate; 52. Support frame; 53. Support roller; 54. Rubber ball; 55. Short spring rod; 56. Hinge frame 57. Circular roller; 58. Rubber ring; 59. Support tube; 510. Short plate; 511. Limiting rod; 512. Limiting tube; 6. Auxiliary component; 61. Mounting block; 62. Long spring rod; 63. Circular ring plate; 64. Limiting ring; 65. Round rod; 66. Slide groove; 67. Auxiliary ring; 7. Anti-slip component; 71. Circular groove; 72. Mounting groove; 73. Empty groove; 74. Isolation ring; 75. Detection device; 76. Laser head; 77. Helical spring; 78. Hinge block; 79. Sphere; 710. Connecting groove; 711. Auxiliary groove; 712. Limiting vertical rod; 713. Sliding block; 714. Limiting groove; 715. Double-headed hydraulic device; 716. Extrusion plate. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] In this application, the term "above" indicates the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. It is primarily used to better describe this application and its embodiments, and is not intended to limit the indicated device, element, or component to having a specific orientation, or to construct and operate in a specific orientation. Furthermore, the term "above" may also be used in certain circumstances to indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances.

[0024] Please see Figures 1-14 The present invention provides a technical solution: A plasma welding device for construction engineering includes a base plate 1, a supporting square tube 2 fixedly installed on the bottom of the base plate 1, and a prefabricated round tube column 3 set on the outside of the base plate 1.

[0025] In one embodiment of the present invention, a rotating assembly 4 is provided on the base plate 1. The rotating assembly 4 includes a connecting frame 41. The connecting frame 41 is fixedly installed on the bottom of the base plate 1. A plasma welding robotic arm 42 is provided on the connecting frame 41. A mounting plate 43 is fixedly installed on the bottom of the base plate 1. A first motor 44 is fixedly installed on the mounting plate 43. A threaded rod 45 is fixedly installed at the output end of the first motor 44. A sliding plate 46 is threadedly installed on the threaded rod 45. A limit rod 47 is fixedly installed on the sliding plate 46. A mounting bracket 48 is fixedly installed on one end of a skateboard 46. A cylinder 49 is fixedly installed on the other end of the mounting bracket 48. A second motor 410 is fixedly installed on the cylinder 49. A mounting shell 411 is fixedly installed on one end of the output end of the second motor 410. A circular block 412 is fixedly installed on the other end of the mounting shell 411. A third motor 413 is fixedly installed on the circular block 412. A short rod 414 is fixedly installed on one end of the output end of the third motor 413. A circular plate 415 is fixedly installed on the other end of the short rod 414. 5 has an arc-shaped groove 416, 412 has a vertical groove 417, a slide rod 418 is slidably mounted on the round block 412, a rubber block 419 is fixedly mounted on the slide rod 418, a thin rod 420 is fixedly mounted on the slide rod 418, a mounting plate 43, a first motor 44, a threaded rod 45, a sliding plate 46, a limiting square rod 47, a mounting bracket 48, a cylinder 49, a second motor 410, a mounting shell 411, a round block 412, a third motor 413, a short rod 414, and a round plate 415. Multiple sets of arc-shaped grooves 416, vertical grooves 417, sliding rods 418, rubber blocks 419, and thin rods 420 are provided. The sliding plate 46 is threaded onto the threaded rod 45. The limiting square rod 47 slides inside the supporting square tube 2. The mounting shell 411 is rotatably installed inside the cylinder 49. The short rod 414 passes through the round block 412. The thin rod 420 slides inside the vertical groove 417 and the arc-shaped groove 416. The No. 3 motor 413 is located inside the mounting shell 411. Multiple sets of rubber blocks 419 are located inside the prefabricated round tube column 3.

[0026] In this embodiment, during operation, according to the dimensions of the prefabricated circular tube column 3, the first motor 44 on the mounting plate 43 is started. The output end of the first motor 44 drives the threaded rod 45 to rotate. The sliding plate 46, threaded onto the threaded rod 45, slides along the guide rod 47. The guide rod 47 slides inside the supporting square tube 2, ensuring that the sliding plate 46 moves smoothly. The sliding plate 46 drives the cylinder 49 to move through the mounting bracket 48. After adjusting the distance between the cylinder 49 and the prefabricated circular tube column 3, and inserting the circular block 412 into the prefabricated circular tube column 3, the third motor 413 is started. The output end of the third motor 413 drives the short rod 414 and... The circular plate 415 rotates, and the arc groove 416 on the circular plate 415 pulls the slide bar 418 along the vertical groove 417 of the circular block 412 through the thin rod 420, so that multiple sets of rubber blocks 419 are pushed outward from the inside of the precast circular column 3, and firmly attached to the inner wall of the circular column to complete the workpiece fixation. When circumferential welding is required, the second motor 410 is started. The second motor 410 drives the mounting shell 411 to rotate inside the cylinder 49, which in turn drives the circular block 412 and the precast circular column 3 to rotate synchronously to meet the circumferential welding requirements of the circular column; at the same time, it works in conjunction with the plasma welding robotic arm 42 on the connecting frame 41 to perform specific welding operations.

[0027] In one embodiment of the present invention, a support assembly 5 is provided on the base plate 1. The support assembly 5 includes a support plate 51, which is fixedly installed on the base plate 1. A support frame 52 is fixedly installed on the support plate 51. A support roller 53 is rotatably installed on the support frame 52. A rubber ball 54 is rotatably installed on the support roller 53. One end of a short spring rod 55 is fixedly installed on the support plate 51. A hinge frame 56 is fixedly installed on the other end of the short spring rod 55. A circular roller 57 is rotatably installed on the hinge frame 56. A rubber ring 58 is fixedly installed on the circular roller 57. A support is fixedly installed on the support plate 51. A short plate 510 is fixedly installed on the pipe 59 and the hinge frame 56. A limit rod 511 is fixedly installed on the short plate 510. A limit tube 512 is fixedly installed on the support pipe 59. Multiple sets of support plate 51, support frame 52, support roller 53, rubber ball 54, short spring rod 55, hinge frame 56, round roller 57, rubber ring 58, support pipe 59, short plate 510, limit rod 511 and limit tube 512 are provided. Multiple sets of rubber balls 54 are attached to the surface of the precast round pipe column 3, rubber ring 58 is attached to the bottom of the precast round pipe column 3, and limit rod 511 slides inside limit tube 512.

[0028] In this embodiment, the support plate 51 is fixed on the base plate 1. The support frame 52 on the surface of the support plate 51 fixes the support roller 53. The multiple sets of rubber balls 54 on the support roller 53 are in close contact with the surface of the precast round tube column 3, which provides radial support force for the round tube column and avoids rigid contact that scratches the tube wall. The short spring rod 55 on the support plate 51 pushes the hinge frame 56 to adjust its position adaptively, so that the rubber ring 58 of the round roller 57 on the hinge frame 56 is in close contact with the bottom of the precast round tube column 3, preventing the round tube column from shifting axially. The short plate 510 on the hinge frame 56 drives the limiting rod 511 to slide along the limiting tube 512 on the support tube 59, ensuring the precise movement of the support structure and preventing the precast round tube column 3 from shaking when rotating.

[0029] In one embodiment of the present invention, an auxiliary component 6 is provided on the cylinder 49. The auxiliary component 6 includes a mounting block 61. The mounting block 61 is fixedly mounted on the cylinder 49. One end of a long spring rod 62 is fixedly mounted on the mounting block 61. The other end of the long spring rod 62 is fixedly mounted on one side of a circular ring plate 63. A limiting ring 64 is fixedly mounted on the circular block 412. A circular rod 65 is fixedly mounted on the rubber block 419. A sliding groove 66 is provided on the circular block 412. An auxiliary ring 67 is rotatably mounted on the other side of the circular ring plate 63. Multiple sets of mounting blocks 61, long spring rods 62, circular ring plates 63, limiting rings 64, circular rods 65 and sliding grooves 66 are provided. The auxiliary rings 67 are attached to both sides of the precast circular tube column 3. Multiple sets of circular rods 65 slide inside multiple sets of sliding grooves 66.

[0030] In this embodiment, to avoid weld deviation caused by uneven clamping, the mounting block 61 on the cylinder 49 fixes the long spring rod 62. The long spring rod 62 applies a continuous preload to the annular plate 63, so that the auxiliary ring 67 on one side of the annular plate 63 fits tightly against both sides of the precast circular column 3, forming a double fixation with the internal clamping of the rubber block 419 in the rotating assembly 4. This effectively prevents radial deviation of the precast circular column 3 during welding. The round rod 65 on the rubber block 419 slides along the groove 66 of the round block 412, providing precise guidance for the movement of the auxiliary ring 67 and ensuring that multiple sets of auxiliary components 6 operate synchronously.

[0031] In one embodiment of the present invention, an anti-slip component 7 is provided on the rubber block 419. The anti-slip component 7 includes a circular groove 71. The rubber block 419 has a circular groove 71, the slide rod 418 has an installation groove 72, and the rubber block 419 has a hollow groove 73 in the middle. An isolation ring 74 is fixedly installed inside the slide rod 418. A detection device 75 is fixedly installed below the isolation ring 74, a laser head 76 is fixedly installed on the detection device 75, and one end of a helical spring 77 is fixedly installed above the isolation ring 74. A hinge block 78 is fixedly installed at one end of a helical spring 77. A ball 79 is rotatably installed at the other end of the hinge block 78. A connecting groove 710 is provided on the hinge block 78. An auxiliary groove 711 is provided inside the rubber block 419. A limit rod 712 is fixedly installed inside the rubber block 419. A sliding block 713 is fixedly installed on the hinge block 78. A limit groove 714 is provided on the sliding block 713. A double-headed hydraulic device 715 is fixedly installed inside the rubber block 419. The piston end is fixedly mounted with an extrusion plate 716, a circular groove 71, a mounting groove 72, a hollow groove 73, an isolation ring 74, a detection device 75, a laser head 76, a helical spring 77, a hinge block 78, a ball 79, a connecting groove 710, an auxiliary groove 711, a limiting vertical rod 712, a sliding block 713, a limiting groove 714, a double-headed hydraulic device 715, and multiple sets of extrusion plates 716. The isolation ring 74, the detection device 75, the laser head 76, and the helical spring 77 are disposed inside the mounting groove 72. The hinge block 78 slides inside the circular groove 71, the sliding block 713 slides inside the auxiliary groove 711, the limiting vertical rod 712 slides inside the limiting groove 714, the double-headed hydraulic device 715 and the extrusion plate 716 are set inside the empty groove 73, the laser head 76 is set below the hinge block 78 and the sphere 79, the connecting groove 710 is set directly above the laser head 76, the sphere 79 is attached to the top of the connecting groove 710, the lower part of the rubber block 419 is made of rigid material, and the upper part of the rubber block 419 is made of flexible material.

[0032] In this embodiment, the isolation ring 74 inside the slide bar 418 separates the detection and elastic support structure. The laser head 76 on the detection device 75 emits a laser beam that passes through the connecting groove 710 of the hinge block 78 to monitor the rotation state of the ball 79 in real time: Under normal clamping, the rubber block 419 is tightly attached to the inner wall of the prefabricated cylindrical column 3, and the ball 79 remains stationary due to static friction. The laser signal does not fluctuate, proving that the clamping is stable and there is no slippage. When there is a gap between the rubber block 419 and the inner wall of the cylindrical column, the static friction is insufficient, causing the ball 79 to rotate slightly with the cylindrical column. The laser signal changes regularly due to the rotation of the ball 79, and the detection device 75 determines that there is a risk of slippage. The double-headed hydraulic device 715 in the slot 73 of the rubber block 419 is immediately activated. Its piston end pushes the extrusion plate 716 to apply pressure to the slot 73, causing the flexible part above the rubber block 419 to expand upward, increasing the contact area with the inner wall of the cylindrical tube. By increasing the clamping friction, the risk of slippage is eliminated. The helical spring 77 always pushes the hinge block 78 to ensure that the ball 79 fits tightly against the inner wall of the cylindrical tube. The sliding block 713 on the hinge block 78 slides along the auxiliary groove 711 of the rubber block 419. The limiting vertical rod 712 guides the sliding block 713 in the limiting groove 714, ensuring the precise movement of the hinge block 78 and preventing the ball 79 from shifting and affecting the detection accuracy.

[0033] All electrical components appearing in this application are electrically connected to the controller and 220V AC mains power. The controller is a conventional and known device that can control the plasma welding robotic arm 42, motor 44, motor 410, motor 413, and detection device 75. All standard parts used in this application can be purchased from the market. The specific connection methods of each part are all conventional methods such as riveting and welding that are mature in the prior art. In addition, the standard parts are all conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art.

[0034] It should be noted that the above electrical components are all existing technology products. Those skilled in the art should select, install, and complete the circuit debugging work according to the needs of use to ensure that each electrical appliance can work normally. The components are all general standard parts or components known to those skilled in the art. Their structure and principle can be known by those skilled in the art through technical manuals or conventional experimental methods. No specific restrictions are made here. The supporting structures of the hydraulic drive structure appearing in this application document, such as hydraulic tanks and hydraulic pumps, are existing equipment and will not be described in detail here.

[0035] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A plasma welding device for construction engineering, comprising a base plate (1), wherein a supporting square tube (2) is fixedly installed on the bottom of the base plate (1), and a prefabricated circular tube column (3) is provided on the outside of the base plate (1), characterized in that: A rotating assembly (4) is provided on the base plate (1), the rotating assembly (4) comprising: A connecting frame (41) is fixedly installed on the bottom of the base plate (1). A plasma welding robotic arm (42) is provided on the connecting frame (41). An installation plate (43) is fixedly installed on the bottom of the base plate (1). A No. 1 motor (44) is fixedly installed on the installation plate (43). A threaded rod (45) is fixedly installed at the output end of the No. 1 motor (44). A sliding plate (46) is threaded on the threaded rod (45). A limiting rod (47) is fixedly installed on the sliding plate (46). One end of the mounting bracket (48) is fixedly installed on the sliding plate (46). A cylinder (49) is fixedly installed on the other end of the mounting bracket (48). A second motor (410) is fixedly installed on the cylinder (49). One end of the mounting shell (411) is fixedly installed on the output end of the second motor (410). A round block (412) is fixedly installed on the other end of the mounting shell (411). The No. 3 motor (413) is fixedly installed on the circular block (412). One end of the short rod (414) is fixedly installed at the output end of the No. 3 motor (413). The other end of the short rod (414) is fixedly installed with a circular plate (415). An arc groove (416) is opened on the circular plate (415). A vertical groove (417) is opened on the circular block (412). A sliding rod (418) is slidably installed on the circular block (412). A rubber block (419) is fixedly installed on the sliding rod (418). A thin rod (420) is fixedly installed on the sliding rod (418).

2. The plasma welding apparatus for construction engineering according to claim 1, characterized in that: The mounting plate (43), motor 1 (44), threaded rod (45), sliding plate (46), limiting square rod (47), mounting bracket (48), cylinder (49), motor 2 (410), mounting shell (411), round block (412), motor 3 (413), short rod (414), round plate (415), arc groove (416), vertical groove (417), sliding rod (418), rubber block (419) and thin rod (420) are provided in multiple sets.

3. The plasma welding apparatus for construction engineering according to claim 1, characterized in that: The sliding plate (46) is threaded onto the threaded rod (45), the limiting square rod (47) slides inside the supporting square tube (2), the mounting shell (411) is rotatably mounted inside the cylinder (49), the short rod (414) passes through the round block (412), the thin rod (420) slides inside the vertical groove (417) and the arc groove (416), the No. 3 motor (413) is set inside the mounting shell (411), and multiple sets of rubber blocks (419) are set inside the prefabricated round tube column (3).

4. The plasma welding apparatus for construction engineering according to claim 1, characterized in that: A support assembly (5) is provided on the base plate (1). The support assembly (5) includes a support plate (51). The support plate (51) is fixedly installed on the base plate (1). A support frame (52) is fixedly installed on the support plate (51). A support roller (53) is rotatably installed on the support frame (52). A rubber ball (54) is rotatably installed on the support roller (53). One end of a short spring rod (55) is fixedly installed on the support plate (51). A hinge frame (56) is fixedly installed on the other end of the short spring rod (55). A round roller (57) is rotatably installed on the hinge frame (56). A rubber ring (58) is fixedly installed on the round roller (57). A support tube (59) is fixedly installed on the support plate (51). A short plate (510) is fixedly installed on the hinge frame (56). A limit rod (511) is fixedly installed on the short plate (510). A limit tube (512) is fixedly installed on the support tube (59).

5. The plasma welding apparatus for construction engineering according to claim 4, characterized in that: The support plate (51), support frame (52), support roller (53), rubber ball (54), short spring rod (55), hinge frame (56), round roller (57), rubber ring (58), support tube (59), short plate (510), limiting rod (511) and limiting tube (512) are provided in multiple sets. The multiple sets of rubber balls (54) are attached to the surface of the precast round column (3), the rubber ring (58) is attached to the bottom of the precast round column (3), and the limiting rod (511) slides inside the limiting tube (512).

6. The plasma welding apparatus for construction engineering according to claim 1, characterized in that: An auxiliary component (6) is provided on the cylinder (49). The auxiliary component (6) includes a mounting block (61). The mounting block (61) is fixedly installed on the cylinder (49). One end of a long spring rod (62) is fixedly installed on the mounting block (61). The other end of the long spring rod (62) is fixedly installed on one side of a circular ring plate (63). A limit ring (64) is fixedly installed on the circular block (412). A circular rod (65) is fixedly installed on the rubber block (419). A sliding groove (66) is opened on the circular block (412). An auxiliary ring (67) is rotatably installed on the other side of the circular ring plate (63).

7. The plasma welding apparatus for construction engineering according to claim 6, characterized in that: The mounting block (61), long spring rod (62), circular plate (63), limiting ring (64), round rod (65) and sliding groove (66) are provided in multiple sets. The auxiliary ring (67) is attached to both sides of the precast circular column (3), and the multiple sets of round rods (65) slide inside the multiple sets of sliding grooves (66).

8. The plasma welding apparatus for construction projects according to claim 1, characterized in that: An anti-slip component (7) is provided on the rubber block (419). The anti-slip component (7) includes a circular groove (71). The rubber block (419) has a circular groove (71). The slide rod (418) has an installation groove (72). The rubber block (419) has a hollow groove (73) in the middle. An isolation ring (74) is fixedly installed inside the slide rod (418). A detection device (75) is fixedly installed below the isolation ring (74). A laser head (76) is fixedly installed on the detection device (75). One end of a helical spring (77) is fixedly installed above the isolation ring (74). The other end of the helical spring (77) is fixed. One end of the hinge block (78) is installed, and the other end of the hinge block (78) is rotatably installed with a ball (79). The hinge block (78) has a connecting groove (710). The rubber block (419) has an auxiliary groove (711) inside. The rubber block (419) has a limiting vertical rod (712) fixedly installed inside. The hinge block (78) has a sliding block (713) fixedly installed. The sliding block (713) has a limiting groove (714). The rubber block (419) has a double-headed hydraulic device (715) fixedly installed inside. The piston end of the double-headed hydraulic device (715) has a pressing plate (716) fixedly installed.

9. The plasma welding apparatus for construction projects according to claim 8, characterized in that: The circular groove (71), mounting groove (72), empty groove (73), isolation ring (74), detection device (75), laser head (76), helical spring (77), hinge block (78), sphere (79), connecting groove (710), auxiliary groove (711), limiting vertical rod (712), sliding block (713), limiting groove (714), double-headed hydraulic device (715) and extrusion plate (716) are provided in multiple sets.

10. The plasma welding apparatus for construction engineering according to claim 8, characterized in that: The isolation ring (74), detection device (75), laser head (76) and helical spring (77) are disposed inside the mounting groove (72). The hinge block (78) slides inside the circular groove (71). The sliding block (713) slides inside the auxiliary groove (711). The limiting vertical rod (712) slides inside the limiting groove (714). The double-headed hydraulic device (715) and extrusion plate (716) are disposed inside the empty groove (73). The laser head (76) is disposed below the hinge block (78) and the sphere (79). The connecting groove (710) is disposed directly above the laser head (76). The sphere (79) is attached to the top of the connecting groove (710). The lower part of the rubber block (419) is made of rigid material, and the upper part of the rubber block (419) is made of flexible material.

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