A construction device for building steel structures and its construction method

Abstract

The present invention relates to the technical field of steel structure construction, specifically a construction device and a construction method for building steel structures, including a base. An adjustment structure is installed on the base. A connection structure is installed inside the adjustment structure. A positioning structure is installed inside the adjustment structure. A detection structure is installed at the top end of the base. A cleaning structure is installed at the side end of the detection structure. A rotating structure is installed at the top end of the cleaning structure. A heat dissipation structure is installed inside the base. A transmission structure is installed inside the base; through the adjustment structure installed at the side end of the base, it can be adjusted and rotated according to the thickness of the steel pipe to be welded. At the same time, the connection structure can limit the adjustment structure. Through the positioning structure installed on the adjustment structure, it can support and limit the fixed seat. At the same time, through the detection structure installed at the top end of the base, it can detect the pipe orifice of the steel pipe to prevent the deformation of the pipe orifice of the steel pipe from affecting the use.

Description

Technical Field

[0001] The present invention relates to the technical field of steel structure construction, and specifically relates to a construction device and a construction method for building steel structures. Background Art

[0002] A steel structure is a structure composed of steel materials and is one of the main types of building structures. The structure is mainly composed of steel beams, steel columns, steel trusses and other components made of sections and steel plates, and rust removal and rust prevention processes such as silanization, pure manganese phosphating, water washing and drying, and galvanizing are adopted. A welding device is usually required during the installation of the steel structure.

[0003] However, when welding existing steel structures, generally two steel pipes are directly butted together and then welded using a welding machine. However, during welding, it is necessary to weld around the circumference of the steel pipe. When welding the steel pipe, the steel pipe needs to be rotated to continue welding. Therefore, it is easy to cause improper welding speed, resulting in too high or too defective weld feet at the welding points, which will affect the normal use of the steel pipe. And since the steel pipes are directly stacked on the construction site, the pipe orifices of the steel pipes are easily deformed when they collide with the ground during unloading. Some slightly deformed steel pipes are not easy to observe. Therefore, after welding the steel pipes with deformed orifices, it not only affects the use quality of the steel pipes, but also causes the welding surfaces of the two ends of the steel pipes to be uneven and requires re-welding, thus affecting the welding efficiency of the steel pipes. And when welding the steel pipes, since two steel pipes are directly butted together for welding, and since the surface of the steel pipe will contain rust, impurities, grease, water and other impurities, when welding without cleaning, it is easy to cause gaps in local parts of the welding seam and cavities formed on the surface or inside of the welding seam, thus affecting the welding quality of the steel pipe. Summary of the Invention

[0004] In view of the problems in the prior art, the present invention provides a construction device and a construction method for building steel structures.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a construction device for building steel structures, including a base, an adjustment structure is installed on the base, a connection structure is installed inside the adjustment structure, a positioning structure is installed inside the adjustment structure, a detection structure is installed at the top of the base, a cleaning structure is installed at the side end of the detection structure, a rotation structure is installed at the top of the cleaning structure, a heat dissipation structure is installed inside the base, and a transmission structure is installed inside the base;

[0006] The adjustment structure includes a fixed seat. Both ends of the base are fixedly connected with fixed seats. A sliding seat is slidably connected to the side end of the fixed seat. A three-jaw chuck is rotatably connected to the side end of the sliding seat. A first rotating shaft is rotatably connected inside the sliding seat. The first rotating shaft is fixedly connected with the three-jaw chuck. The other end of the first rotating shaft is fixedly connected with the output end of an external motor. An adjusting screw rod is rotatably connected to the bottom end of the sliding seat. The adjusting screw rod is threadedly connected with the fixed seat. A protective cover is fixedly connected to the side end of the sliding seat. The protective cover is slidably connected with the fixed seat. A second rotating shaft is rotatably connected inside the sliding seat. First bevel gears are fixedly connected to the side ends of the first rotating shaft and the second rotating shaft. The two first bevel gears are meshed. A rotating rod is rotatably connected to the bottom end of the sliding seat. Second bevel gears are fixedly connected to the second rotating shaft and the rotating rod. The two second bevel gears are meshed. The rotating rod is detachably connected with the adjusting screw rod.

[0007] Specifically, the connection structure includes a first insertion rod. The first insertion rod is slidably connected inside the rotating rod. A first insertion slot is provided inside the adjusting screw rod. The first insertion rod is inserted into the first insertion slot. A threaded sleeve is rotatably connected to the side end of the sliding seat. A first screw rod is threadedly connected inside the threaded sleeve. The first screw rod is slidably connected with the rotating rod. A fixed shaft is fixedly connected to the side end of the first screw rod. The fixed shaft is rotatably connected with the first insertion rod.

[0008] Specifically, the positioning structure includes a first connecting rod. The first connecting rod is slidably connected inside the fixed seat. A first clamping rod is fixedly connected to the side end of the first connecting rod. A second clamping rod is slidably connected inside the fixed seat. Positioning wheels are rotatably connected to the side ends of the first clamping rod and the second clamping rod. A first rack is fixedly connected to the bottom end of the first connecting rod. A second rack is fixedly connected to the bottom end of the second clamping rod. A first gear is rotatably connected inside the fixed seat. Both the first rack and the second rack are meshed with the first gear. A second connecting rod is fixedly connected to the side end of the second rack. A cylinder is installed inside the fixed seat. The output end of the cylinder is fixedly connected with the second connecting rod.

[0009] Specifically, the detection structure includes a third rotating shaft. A detection seat is slidably connected to the top end of the base. The third rotating shaft is rotatably connected to the side end of the detection seat. A second screw rod is rotatably connected inside the detection seat. Third bevel gears are fixedly connected to the side ends of the third rotating shaft and the second screw rod respectively. The two third bevel gears are meshed with each other. A sliding rod is slidably connected to the side end of the detection seat. The second screw rod is threadedly connected to the sliding rod. An installation rod is slidably connected inside the sliding rod. A contact wheel is rotatably connected to the side end of the installation rod. A second spring is fixedly connected between the sliding rod and the installation rod. A fourth rotating shaft is rotatably connected inside the detection seat. Fourth bevel gears are fixedly connected to the side ends of the third rotating shaft and the fourth rotating shaft respectively. The two fourth bevel gears are meshed with each other. A first conductive sheet is fixedly connected to the side end of the installation rod. A second conductive sheet is fixedly connected to the side end of the sliding rod. A warning lamp is fixedly connected to the side end of the base.

[0010] Specifically, the cleaning structure includes a fixing frame. The fixing frame is fixedly connected to the side end of the detection seat. A rotating seat is rotatably connected to the top end of the fixing frame. A slider is slidably connected inside the rotating seat. A fixing column is fixedly connected to the top end of the slider. An adjusting rod is slidably connected inside the fixing column. A cleaning cotton is installed at the top end of the adjusting rod. A fifth rotating shaft is slidably connected inside the adjusting rod. A second gear is fixedly connected to the side end of the fifth rotating shaft. A third rack is fixedly connected inside the adjusting rod. The second gear is meshed with the third rack. A turning handle is rotatably connected to the side end of the fixing column. A third screw rod is rotatably connected inside the turning handle. A first guide rod is fixedly connected to the side end of the turning handle. The first guide rod is slidably connected to the third screw rod. A second guide rod is fixedly connected to the side end of the third screw rod. The second guide rod is slidably connected to the fifth rotating shaft.

[0011] Specifically, the rotating structure includes a rotating rod. The rotating rod is fixedly connected to the side end of the fixing frame. The rotating rod is rotatably connected to the rotating seat. A chuck is fixedly connected to the side end of the rotating rod. A clamping block is slidably connected inside the chuck. Card slots are provided at the top end and the bottom end of the rotating seat respectively. The clamping block is engaged with the card slots. A third spring is fixedly connected between the clamping block and the chuck.

[0012] Specifically, the heat dissipation structure includes a sixth rotating shaft. The sixth rotating shaft is rotatably connected inside the base. A seventh rotating shaft is rotatably connected inside the base. Fifth bevel gears are fixedly connected to the side ends of the sixth rotating shaft and the seventh rotating shaft respectively. The two fifth bevel gears are meshed with each other. A heat dissipation fan blade is fixedly connected to the top end of the seventh rotating shaft. A first separation net is fixedly connected to the top end of the base. A second separation net is fixedly connected to the bottom end of the fixing frame.

[0013] Specifically, the transmission structure includes a positioning block. The positioning block is fixedly connected to the bottom end of the detection seat. The positioning block is slidably connected to the base. A threaded block is fixedly connected inside the positioning block. A reciprocating lead screw is rotatably connected inside the base. The reciprocating lead screw is threadedly connected to the threaded block. A second insertion rod is slidably connected inside the reciprocating lead screw. A second insertion slot is provided on the side of the sixth rotating shaft. The second insertion rod is inserted into the second insertion slot. The second insertion rod is rotatably connected to the base. A rotating plate is slidably connected to the side of the second insertion rod. The rotating plate is rotatably connected to the base.

[0014] Specifically, a push plate is fixedly connected to the side of the second insertion rod. A fixing groove is provided on the side of the rotating plate. A fixing ring is fixedly connected to the side of the push plate. The fixing groove and the fixing ring are engaged.

[0015] A construction method of a construction device for building steel structures includes the following steps:

[0016] S1: First, start the positioning structure to support and fix the steel pipes placed at both ends of the base. Through the adjustment structure installed on the side of the base, it can be adjusted according to the length of the steel pipe and can also drive the steel pipe to rotate at a constant speed. The connection structure can assist the adjustment structure in working.

[0017] S2: Then, through the detection structure, the pipe orifice of the steel pipe can be detected. At the same time, according to the positioning structure, the steel pipe can be supported and it is also convenient for the steel pipe to rotate on the side of the base.

[0018] S3: When welding the steel pipe, the cleaning structure can first clean the welding part of the steel pipe and can also fix the welding head, which is convenient for welding the steel pipe. The rotating structure can rotate and adjust the cleaning structure.

[0019] S4: The heat dissipation structure can dissipate heat from the welded steel pipe. At the same time, through the transmission structure, the heat dissipation structure and the detection structure can be driven.

[0020] The beneficial effects of the present invention are:

[0021] (1) A construction device and construction method for a building steel structure according to the present invention can be adjusted and rotated according to the thickness of the steel pipe to be welded through an adjustment structure installed at the side end of the base. At the same time, the adjustment structure can be limited by a connection structure. That is, since a fixed seat is fixedly connected to the side end of the base and a sliding seat is slidably connected to the side end of the fixed seat, starting the motor installed at the side end of the sliding seat can drive the first rotating shaft fixedly connected to the output end of the motor to rotate. Since the three-jaw chuck is fixedly connected to the first rotating shaft, after fixing the steel pipe to be welded through the three-jaw chuck, the steel pipe can be driven to rotate. Therefore, the steel pipe can be rotated evenly, and the steel pipe can be better welded. Since the two first bevel gears fixed on the first rotating shaft and the second rotating shaft mesh, and the second bevel gears fixed on the second rotating shaft and the rotating rod mesh, the rotating rod can be driven to rotate in the sliding seat. Since the rotating rod is detachably connected to the adjusting screw rod and the adjusting screw rod is threadedly connected to the fixed seat, the adjusting screw rod can also be driven to rotate when the motor is started, and the distance between the sliding seat and the base can be adjusted. When the distance between the sliding seat and the fixed seat needs to be adjusted, rotate the threaded sleeve rotating at the side end of the sliding seat. Since the threaded sleeve is threadedly connected to the first screw rod and the side cross-section of the first screw rod is square-shaped, and the first screw rod is slidably connected to the sliding seat, the first screw rod can be driven to slide in the rotating rod when the threaded sleeve is rotated. Since a first insertion rod is slidably connected in the rotating rod and the fixed shaft fixed to the side end of the first screw rod is rotatably connected to the first insertion rod, the first insertion rod can be driven to slide when the first screw rod slides back and forth. When the first insertion rod is inserted into the first insertion slot, the rotation of the rotating rod can drive the adjusting screw rod to rotate. Therefore, the distance between the sliding seat and the fixed seat can be adjusted according to the length of the steel pipe.

[0022] (2) The construction device and construction method of a building steel structure according to the present invention can support and limit the fixed seat through the positioning structure installed on the adjusting structure. At the same time, through the detection structure installed at the top of the base, the pipe orifice of the steel pipe can be detected to prevent the deformation of the pipe orifice of the steel pipe from affecting the use. That is, when the steel pipe is placed on the top of the fixed seat and the sliding seat, the cylinders installed in the fixed seat and the sliding seat are started, which can drive the second connecting rod at the top of the cylinder to slide upward. Since the second connecting rod is slidably connected to the second rack, it can drive the second rack to slide upward. Since the first gear rotates in the fixed seat and both ends are meshed with the first rack and the second rack respectively, when the second rack slides upward, it can drive the first rack to slide downward. Since the first connecting rod is fixedly connected to the top of the first rack, it can drive the first clamping rod and the second clamping rod to slide towards each other. When the positioning wheels rotating on the first clamping rod and the second clamping rod are in contact with the steel pipe, the steel pipe can be positioned, and thus the steel pipe can be supported and fixed, which is convenient for welding the steel pipe. Since the detection seat is slidably connected to the top of the base, starting the servo motor installed at the top of the detection seat can drive the fourth rotating shaft fixed to the output end of the servo motor to rotate. Since the third bevel gears are fixedly connected to the side ends of the third rotating shaft and the fourth rotating shaft, and the second screw rod rotates in the detection seat, through the mutual meshing of the two third bevel gears fixed to the second screw rod and the fourth rotating shaft, when the servo motor is started, multiple second screw rods can be driven to rotate in the detection seat. After the steel pipe is positioned, the motor installed on the sliding seat is started again to adjust the sliding of the sliding seat. Since the three-jaw chuck installed on the side end of the sliding seat can clamp and fix the steel pipe, the steel pipe can be driven to slide. When the steel pipe slides to be in contact with the fixed seat, then the servo motor is started, which can drive the second screw rod to slide in the detection seat. Since the second screw rod is threadedly connected to the sliding rod, the sliding rod can be driven to rotate in the detection seat. Since the mounting rod is slidably connected in the sliding rod, after the contact wheel contacts the inside of the steel pipe, the servo motor is turned off to stop working. Then, the steel pipe is driven to rotate by rotating the three-jaw chuck. If the welded joint end of the steel pipe is bent or the like, the contact wheel can drive the mounting rod to slide in the sliding rod. Since the first conductive sheet is electrically connected to the internal power supply, the second conductive sheet is electrically connected to the warning lamp, and the warning lamp is electrically connected to the power supply, when the first conductive sheet and the second conductive sheet are in contact, a closed circuit can be formed. Therefore, the warning lamp works to remind that there is a deviation at the side end of the steel pipe, and thus the welded joint of the steel pipe can be detected.

[0023] (3) The construction device and construction method of a building steel structure according to the present invention can clean the welding part of the steel pipe before welding the steel pipe through the cleaning structure installed at the top of the base. At the same time, the cleaning structure can be rotationally adjusted through the rotation structure. That is, since a fixing frame is fixedly connected to the side end of the detection seat, after the detection of the pipe orifice of the steel pipe is completed, the motor is started to drive the steel pipe to slide towards both ends through the sliding seat, and then the detection seat is slid. When the fixing frame and the sliding seat are aligned, the steel pipe is driven to slide inwards through the sliding seat. After the two steel pipes are in contact, the block sliding in the chuck is pressed. When the block is separated from the card slot provided at the top of the rotating seat, the rotating seat can be adjusted through the rotating rod. When the rotating seat rotates until the fixing column faces downwards, the elastic force of the third spring can drive the block to engage with the card slot provided at the bottom of the rotating seat again, so as to limit and fix the rotating seat. Then the handle is rotated. Since the first guide rod fixed to the handle is slidably connected to the third screw rod, and the third screw rod is threadedly connected to the fixing column, and the second guide rod fixed to the third screw rod is slidably connected to the fifth rotating shaft, the fifth rotating shaft can be driven to rotate in the adjusting rod when the handle is rotated. Since the second gear fixed to the fifth rotating shaft meshes with the third rack fixed in the adjusting rod, the height of the adjusting rod can be adjusted. When the cleaning cotton fixed to the top of the adjusting rod is in contact with the steel pipe, the surface of the steel pipe can be cleaned when the steel pipe rotates. Through the threaded connection between the third screw rod and the fixing column, the position between the adjusting rod and the fixing column can be limited and fixed due to the non-automatically rotatable property of the third screw rod. After the cleaning is completed, the rotating seat is rotated until the fixing column faces upwards, and then the laser welding head is installed at the other end of the slider, and the steel pipe can be welded at a constant speed, so that the steel pipe can be cleaned before welding and can be welded and fixed at a constant speed conveniently.

[0024] (4) The construction device and construction method of a building steel structure according to the present invention can, through the heat dissipation structure installed on the base, dissipate heat from the steel pipe after welding. At the same time, through the transmission structure, it can drive the cleaning structure and the heat dissipation structure to move. That is, when it is necessary to move the detection seat, start the motor installed in the base, which can drive the sixth rotating shaft fixed to the output end of the motor to rotate. Then, pressing the push plate can drive the second insertion rod to slide in the reciprocating screw rod. When the second insertion rod is inserted into the second slot provided in the sixth rotating shaft, the rotation of the sixth rotating shaft can drive the reciprocating screw rod rotating rod. Since the threaded block fixed to the positioning block is threadedly connected to the reciprocating screw rod, the detection seat can be driven to slide on the top of the base. By engaging the fixed ring fixed to the side of the push plate with the fixed groove provided on the side of the rotating plate, it can prevent the second insertion rod and the second slot from automatically separating. When the detection seat slides to the leftmost end of the base, pull out the second insertion rod from the second slot. Since the fifth bevel gears fixed to the sixth rotating shaft and the seventh rotating shaft mesh with each other, when the sixth rotating shaft rotates, it can drive the seventh rotating shaft to rotate, thereby driving the heat dissipation fan blades fixed to the seventh rotating shaft to rotate. When the first partition net and the second partition net come into contact, the welded part of the steel pipe in the fixing frame can be heat-dissipated, which can better use the steel pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below with reference to the drawings and embodiments.

[0026] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of a construction device for a building steel structure provided by the present invention;

[0027] Figure 2 is Figure 1 the enlarged schematic diagram of the structure of part A shown in;

[0028] Figure 3 is Figure 1 the enlarged schematic diagram of the structure of part B shown in;

[0029] Figure 4 is Figure 1 the enlarged schematic diagram of the structure of part C shown in;

[0030] Figure 5 It is a schematic diagram of the connection structure between the fixed seat and the first connecting rod of the present invention;

[0031] Figure 6 It is a schematic diagram of the connection structure between the fixed seat and the sliding seat of the present invention;

[0032] Figure 7 is Figure 6 the enlarged schematic diagram of the structure of part D shown in;

[0033] Figure 8Schematic diagram of the connection structure between the detection base and the base of the present invention;

[0034] Figure 9 is Figure 8 Schematic enlarged view of the structure of part E shown;

[0035] Figure 10 is Figure 8 Schematic enlarged view of the structure of part F shown;

[0036] Figure 11 Schematic diagram of the connection structure between the sliding rod and the mounting rod of the present invention;

[0037] Figure 12 is Figure 11 Schematic enlarged view of the structure of part G shown;

[0038] Figure 13 is Figure 11 Schematic enlarged view of the structure of part H shown;

[0039] Figure 14 Schematic diagram of the connection structure between the fourth rotating shaft and the fourth bevel gear of the present invention;

[0040] Figure 15 Schematic diagram of the connection structure between the fixed column and the adjusting rod of the present invention;

[0041] Figure 16 is Figure 15 Schematic enlarged view of the structure of part I shown;

[0042] Figure 17 is Figure 15 Schematic enlarged view of the structure of part J shown.

[0043] In the figure: 1. Base; 2. Adjusting structure; 201. Fixed seat; 202. Slide seat; 203. Three-jaw chuck; 204. First rotating shaft; 205. Adjusting screw rod; 206. Protective cover; 207. Second rotating shaft; 208. First bevel gear; 209. Rotating rod; 210. Second bevel gear; 3. Connecting structure; 301. First plug rod; 302. First slot; 303. First screw rod; 304. Threaded sleeve; 305. Fixed shaft; 4. Positioning structure; 401. First connecting rod; 402. First clamping rod; 403. Second clamping rod; 404. Positioning wheel; 405. First rack; 406. Second rack; 407. First gear; 408. Second connecting rod; 409. Cylinder; 5. Detection structure; 501. Third rotating shaft; 502. Second screw rod; 503. Third bevel gear; 504. Slide rod; 505. Mounting rod; 506. Contact wheel; 507. Second spring; 508. First conductive sheet; 509. Second conductive sheet; 510. Warning lamp; 511. Fourth rotating shaft; 512. Fourth bevel gear; 513. Detection seat; 6. Cleaning structure; 601. Fixed frame; 602. Rotating seat; 603. Slide block; 604. Fixed column; 605. Adjusting rod; 606. Fifth rotating shaft; 607. Second gear; 608. Third rack; 609. Turning handle; 610. Third screw rod; 611. First guide rod; 612. Second guide rod; 7. Rotating structure; 701. Rotating rod; 702. Chuck; 703. Clamping block; 704. Clamping groove; 705. Third spring; 8. Heat dissipation structure; 801. Sixth rotating shaft; 802. Seventh rotating shaft; 803. Fifth bevel gear; 804. Heat dissipation fan blade; 805. First partition net; 806. Second partition net; 9. Transmission structure; 901. Positioning block; 902. Threaded block; 903. Reciprocating screw rod; 904. Second plug rod; 905. Second slot; 906. Rotating plate; 907. Pushing plate; 908. Fixed groove; 909. Fixed ring. Specific embodiments

[0044] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0045] As Figure 1 - Figure 17 shown, a construction device for building steel structures according to the present invention includes a base 1, an adjusting structure 2 is installed on the base 1, a connecting structure 3 is installed inside the adjusting structure 2, a positioning structure 4 is installed inside the adjusting structure 2, a detection structure 5 is installed at the top end of the base 1, a cleaning structure 6 is installed on the side of the detection structure 5, a rotating structure 7 is installed at the top end of the cleaning structure 6, a heat dissipation structure 8 is installed inside the base 1, and a transmission structure 9 is installed inside the base 1;

[0046] The adjusting structure 2 includes a fixed seat 201. Fixed seats 201 are fixedly connected to both ends of the base 1. A sliding seat 202 is slidably connected to the side end of the fixed seat 201. A three-jaw chuck 203 is rotatably connected to the side end of the sliding seat 202. A first rotating shaft 204 is rotatably connected inside the sliding seat 202. The first rotating shaft 204 is fixedly connected to the three-jaw chuck 203. The other end of the first rotating shaft 204 is fixedly connected to the output end of an external motor. An adjusting screw rod 205 is rotatably connected to the bottom end of the sliding seat 202. The adjusting screw rod 205 is threadedly connected to the fixed seat 201. A protective cover 206 is fixedly connected to the side end of the sliding seat 202. The protective cover 206 is slidably connected to the fixed seat 201. A second rotating shaft 207 is rotatably connected inside the sliding seat 202. First bevel gears 208 are fixedly connected to the side ends of the first rotating shaft 204 and the second rotating shaft 207. The two first bevel gears 208 are meshed. A rotating rod 209 is rotatably connected to the bottom end of the sliding seat 202. Second bevel gears 210 are fixedly connected to the second rotating shaft 207 and the rotating rod 209. The two second bevel gears 210 are meshed. The rotating rod 209 is detachably connected to the adjusting screw rod 205. Since a fixed seat 201 is fixedly connected to the side end of the base 1 and a sliding seat 202 is slidably connected to the side end of the fixed seat 201, when the motor installed at the side end of the sliding seat 202 is started, the first rotating shaft 204 fixedly connected to the output end of the motor can be driven to rotate. Since the three-jaw chuck 203 is fixedly connected to the first rotating shaft 204, after the steel pipe to be welded is fixed by the three-jaw chuck 203, the steel pipe can be driven to rotate. Therefore, the steel pipe can be rotated evenly, and the steel pipe can be welded better. Since the two first bevel gears 208 fixed on the first rotating shaft 204 and the second rotating shaft 207 are meshed, and the second bevel gears 210 fixed on the second rotating shaft 207 and the rotating rod 209 are meshed, the rotating rod 209 can be driven to rotate inside the sliding seat 202. Since the rotating rod 209 is detachably connected to the adjusting screw rod 205 and the adjusting screw rod 205 is threadedly connected to the fixed seat 201, when the motor is started, the adjusting screw rod 205 can also be driven to rotate to adjust the distance between the sliding seat 202 and the base 1.

[0047] Specifically, the connection structure 3 includes a first insertion rod 301. The first insertion rod 301 is slidably connected within the rotating rod 209. A first insertion slot 302 is provided within the adjusting screw rod 205. The first insertion rod 301 is inserted into the first insertion slot 302. A threaded sleeve 304 is rotatably connected to the side end of the sliding seat 202. A first screw rod 303 is threadedly connected within the threaded sleeve 304. The first screw rod 303 is slidably connected to the rotating rod 209. A fixed shaft 305 is fixedly connected to the side end of the first screw rod 303. The fixed shaft 305 is rotatably connected to the first insertion rod 301. When it is necessary to adjust the distance between the sliding seat 202 and the fixed seat 201, rotate the threaded sleeve 304 that rotates at the side end of the sliding seat 202. Since the threaded sleeve 304 is threadedly connected to the first screw rod 303, and the cross-section of the side end of the first screw rod 303 is square-shaped, and the first screw rod 303 is slidably connected to the sliding seat 202, when the threaded sleeve 304 is rotated, the first screw rod 303 can be driven to slide within the rotating rod 209. Since the first insertion rod 301 is slidably connected within the rotating rod 209, and the fixed shaft 305 fixed to the side end of the first screw rod 303 is rotatably connected to the first insertion rod 301, when the first screw rod 303 slides back and forth, the first insertion rod 301 can be driven to slide. When the first insertion rod 301 is inserted into the first insertion slot 302, the rotation of the rotating rod 209 can drive the rotation of the adjusting screw rod 205. Therefore, the distance between the sliding seat 202 and the fixed seat 201 can be adjusted according to the length of the steel pipe.

[0048] Specifically, the positioning structure 4 includes a first connecting rod 401. The first connecting rod 401 is slidably connected within the fixed seat 201. A first clamping rod 402 is fixedly connected to the side end of the first connecting rod 401. A second clamping rod 403 is slidably connected within the fixed seat 201. Positioning wheels 404 are rotatably connected to the side ends of both the first clamping rod 402 and the second clamping rod 403. A first rack 405 is fixedly connected to the bottom end of the first connecting rod 401. A second rack 406 is fixedly connected to the bottom end of the second clamping rod 403. A first gear 407 is rotatably connected within the fixed seat 201. Both the first rack 405 and the second rack 406 are engaged with the first gear 407. A second connecting rod 408 is fixedly connected to the side end of the second rack 406. A cylinder 409 is installed within the fixed seat 201. The output end of the cylinder 409 is fixedly connected to the second connecting rod 408. When placing the steel pipe on the tops of the fixed seat 201 and the sliding seat 202, starting the cylinder 409 installed within the fixed seat 201 and the sliding seat 202 can drive the second connecting rod 408 at the top of the cylinder 409 to slide upward. Since the second connecting rod 408 is slidably connected to the second rack 406, it can drive the second rack 406 to slide upward. Since the two ends of the first gear 407 rotatably connected within the fixed seat 201 are respectively engaged with the first rack 405 and the second rack 406, when the second rack 406 slides upward, it can drive the first rack 405 to slide downward. Since the first connecting rod 401 is fixedly connected to the top end of the first rack 405, it can drive the first clamping rod 402 and the second clamping rod 403 to slide towards each other. When the positioning wheels 404 rotatably connected to the first clamping rod 402 and the second clamping rod 403 come into contact with the steel pipe, the steel pipe can be positioned, thereby enabling the steel pipe to be supported and fixed, facilitating the welding process of the steel pipe.

[0049] Specifically, the detection structure 5 includes a third rotating shaft 501. A detection seat 513 is slidably connected to the top end of the base 1. The third rotating shaft 501 is rotatably connected to the side end of the detection seat 513. A second screw rod 502 is rotatably connected inside the detection seat 513. Third bevel gears 503 are fixedly connected to the side ends of both the third rotating shaft 501 and the second screw rod 502. The two third bevel gears 503 are meshed with each other. A sliding rod 504 is slidably connected to the side end of the detection seat 513. The second screw rod 502 is in threaded connection with the sliding rod 504. An installation rod 505 is slidably connected inside the sliding rod 504. A contact wheel 506 is rotatably connected to the side end of the installation rod 505. A second spring 507 is fixedly connected between the sliding rod 504 and the installation rod 505. A fourth rotating shaft 511 is rotatably connected inside the detection seat 513. Fourth bevel gears 512 are fixedly connected to the side ends of both the third rotating shaft 501 and the fourth rotating shaft 511. The two fourth bevel gears 512 are meshed with each other. A first conductive sheet 508 is fixedly connected to the side end of the installation rod 505. A second conductive sheet 509 is fixedly connected to the side end of the sliding rod 504. A warning lamp 510 is fixedly connected to the side end of the base 1. Since the detection seat 513 is slidably connected to the top end of the base 1, starting the servo motor installed at the top end of the detection seat 513 can drive the fourth rotating shaft 511 fixed to the output end of the servo motor to rotate. Since third bevel gears 503 are fixedly connected to the side ends of both the third rotating shaft 501 and the fourth rotating shaft 511, and the second screw rod 502 rotates inside the detection seat 513, the two third bevel gears 503 fixed to the second screw rod 502 and the fourth rotating shaft 511 are meshed with each other, so that when the servo motor is started, multiple second screw rods 502 can be driven to rotate inside the detection seat 513. After the steel pipe is positioned, the motor installed on the sliding seat 202 is started again to move the sliding seat 202. Since the three-jaw chuck 203 installed on the side end of the sliding seat 202 can clamp and fix the steel pipe, the steel pipe can be driven to slide. When the steel pipe slides until it abuts against the fixed seat 202, then the servo motor is started, which can drive the second screw rod 502 to slide inside the detection seat 513. Since the second screw rod 502 is in threaded connection with the sliding rod 504, the sliding rod 504 can be driven to rotate inside the detection seat 513. Since the installation rod 505 is slidably connected inside the sliding rod 504, after the contact wheel 506 abuts against the inside of the steel pipe, the servo motor is turned off to stop working. Then, the steel pipe is driven to rotate by rotating the three-jaw chuck 203. If the welded joint end of the steel pipe is bent or the like, the installation rod 505 can be driven to slide inside the sliding rod 504 by the contact wheel 506. Since the first conductive sheet 508 is electrically connected to the internal power supply, the second conductive sheet 509 is electrically connected to the warning lamp 510, and the warning lamp 510 is electrically connected to the power supply, when the first conductive sheet 508 abuts against the second conductive sheet 509, a closed circuit can be formed. Therefore, the warning lamp 510 works to remind that there is a deviation at the side end of the steel pipe, so that the welded joint of the steel pipe can be detected.

[0050] Specifically, the cleaning structure 6 includes a fixing frame 601. The side end of the detection seat 513 is fixedly connected to the fixing frame 601. The top end of the fixing frame 601 is rotatably connected to a rotating seat 602. A slider 603 is slidably connected inside the rotating seat 602. The top end of the slider 603 is fixedly connected to a fixing column 604. An adjusting rod 605 is slidably connected inside the fixing column 604. A cleaning cotton is installed at the top end of the adjusting rod 605. A fifth rotating shaft 606 is slidably connected inside the adjusting rod 605. A second gear 607 is fixedly connected to the side end of the fifth rotating shaft 606. A third rack 608 is fixedly connected inside the adjusting rod 605. The second gear 607 meshes with the third rack 608. The side end of the fixing column 604 is rotatably connected to a turning handle 609. A third screw rod 610 is rotatably connected inside the turning handle 609. A first guide rod 611 is fixedly connected to the side end of the turning handle 609. The first guide rod 611 is slidably connected to the third screw rod 610. A second guide rod 612 is fixedly connected to the side end of the third screw rod 610. The second guide rod 612 is slidably connected to the fifth rotating shaft 606. Then, when the turning handle 609 is rotated, since the first guide rod 611 fixed to the turning handle 609 is slidably connected to the third screw rod 610, and the third screw rod 610 is threadedly connected to the fixing column 604, and the second guide rod 612 fixed to the third screw rod 610 is slidably connected to the fifth rotating shaft 606, the fifth rotating shaft 606 can be driven to rotate inside the adjusting rod 605 when the turning handle 609 is rotated. Since the second gear 607 fixed to the fifth rotating shaft 606 meshes with the third rack 608 fixed inside the adjusting rod 605, the height of the adjusting rod 605 can be adjusted. When the cleaning cotton fixed to the top end of the adjusting rod 605 abuts against the steel pipe, the surface of the steel pipe can be cleaned when the steel pipe rotates. Due to the threaded connection between the third screw rod 610 and the fixing column 604, the adjusting rod 605 and the fixing column 604 can be limited and fixed by the non-automatically rotatable property of the third screw rod 610. After the cleaning is completed, the rotating seat 602 is rotated until the fixing column 604 faces upward, and then the laser welding head is installed at the other end of the slider 603, so that the steel pipe can be welded at a uniform speed, thereby being able to clean the steel pipe before welding it, and at the same time, it is also convenient to weld and fix the steel pipe at a uniform speed.

[0051] Specifically, the rotating structure 7 includes a rotating rod 701. The side end of the fixed frame 601 is fixedly connected to the rotating rod 701. The rotating rod 701 is rotatably connected to the rotating base 602. The side end of the rotating rod 701 is fixedly connected to a chuck 702. A clamping block 703 is slidably connected inside the chuck 702. Clamping grooves 704 are provided at both the top and bottom ends of the rotating base 602. The clamping block 703 is engaged with the clamping groove 704. A third spring 705 is fixedly connected between the clamping block 703 and the chuck 702. Since the fixed frame 601 is fixedly connected to the side end of the detection seat 513, after the detection of the pipe opening of the steel pipe is completed, the motor is started to drive the steel pipe to slide towards both ends through the sliding seat 202, and then the detection seat 513 is slid. When the fixed frame 601 and the sliding seat 202 are aligned, the steel pipe is driven to slide inward through the sliding seat 202. After the two steel pipes are in contact, the clamping block 703 sliding inside the chuck 702 is pressed. When the clamping block 703 is separated from the clamping groove 704 provided at the top end of the rotating base 602, the rotating base 602 can be adjusted through the rotating rod 701. When the rotating base 602 rotates until the fixed column 604 faces downward, the elastic force of the third spring 705 can drive the clamping block 703 to be engaged with the clamping groove 704 provided at the bottom end of the rotating base 602 again, so as to limit and fix the rotating base 602.

[0052] Specifically, the heat dissipation structure 8 includes a sixth rotating shaft 801. The sixth rotating shaft 801 is rotatably connected inside the base 1. A seventh rotating shaft 802 is rotatably connected inside the base 1. Fifth bevel gears 803 are fixedly connected to the side ends of both the sixth rotating shaft 801 and the seventh rotating shaft 802. The two fifth bevel gears 803 are engaged. A heat dissipation fan blade 804 is fixedly connected to the top end of the seventh rotating shaft 802. A first partition net 805 is fixedly connected to the top end of the base 1. A second partition net 806 is fixedly connected to the bottom end of the fixed frame 601. When the detection seat 513 slides to the leftmost end of the base 1, the second insertion rod 904 is pulled out of the second insertion slot 905. Since the fifth bevel gears 803 fixed on the sixth rotating shaft 801 and the seventh rotating shaft 802 are engaged with each other, when the sixth rotating shaft 801 rotates, it can drive the seventh rotating shaft 802 to rotate, so as to drive the heat dissipation fan blade 804 fixed on the seventh rotating shaft 802 to rotate. When the first partition net 805 and the second partition net 806 are in contact, the welding part of the steel pipe inside the fixed frame 601 can be heat-dissipated, and the steel pipe can be used better.

[0053] Specifically, the transmission structure 9 includes a positioning block 901. The bottom end of the detection seat 513 is fixedly connected to the positioning block 901. The positioning block 901 is slidably connected to the base 1. A threaded block 902 is fixedly connected inside the positioning block 901. A reciprocating lead screw 903 is rotatably connected inside the base 1. The reciprocating lead screw 903 is threadedly connected to the threaded block 902. A second insertion rod 904 is slidably connected inside the reciprocating lead screw 903. A second insertion slot 905 is provided on the side end of the sixth rotating shaft 801. The second insertion rod 904 is inserted into the second insertion slot 905. The second insertion rod 904 is rotatably connected to the base 1. A rotating plate 906 is slidably connected to the side end of the second insertion rod 904. The rotating plate 906 is rotatably connected to the base 1. A push plate 907 is fixedly connected to the side end of the second insertion rod 904. A fixing groove 908 is provided on the side end of the rotating plate 906. A fixing ring 909 is fixedly connected to the side end of the push plate 907. The fixing groove 908 and the fixing ring 909 are engaged. When it is necessary to move the detection seat 513, start the motor installed inside the base 1, which can drive the sixth rotating shaft 801 fixed to the output end of the motor to rotate. Then, pressing the push plate 907 can drive the second insertion rod 904 to slide inside the reciprocating lead screw 903. When the second insertion rod 904 is inserted into the second insertion slot 905 provided inside the sixth rotating shaft 801, the rotation of the sixth rotating shaft 801 can drive the reciprocating lead screw 903 to rotate. Since the threaded block 902 fixed on the positioning block 901 is threadedly connected to the reciprocating lead screw 903, the detection seat 513 can be driven to slide on the top end of the base 1. By engaging the fixing ring 909 fixed to the side end of the push plate 907 with the fixing groove 908 provided on the side end of the rotating plate 906, the automatic separation of the second insertion rod 904 and the second insertion slot 905 can be prevented.

[0054] A construction method of a construction device for building steel structures includes the following steps:

[0055] S1: First, start the positioning structure 4 to support and fix the steel pipes placed at both ends of the base 1. Through the adjustment structure 2 installed on the side end of the base 1, it can be adjusted according to the length of the steel pipe and can also drive the steel pipe to rotate at a constant speed. Through the connection structure 3, the adjustment structure 2 can be assisted in working;

[0056] S2: Then, through the detection structure 5, the pipe orifice of the steel pipe can be detected. At the same time, according to the positioning structure 4, the steel pipe can be supported and it is also convenient for the steel pipe to rotate on the side end of the base 1;

[0057] S3: Through the cleaning structure 6, when welding the steel pipe, the welding part of the steel pipe can be cleaned first, and the welding head can also be fixed, which is convenient for welding the steel pipe. Through the rotating structure 7, the cleaning structure 6 can be rotated and adjusted;

[0058] S4: The heat dissipation structure 8 can dissipate heat from the welded steel pipe. Meanwhile, through the transmission structure 9, the heat dissipation structure 8 and the detection structure 5 can be driven.

[0059] When the present invention is in use, since a fixed seat 201 is fixedly connected to the side end of the base 1, and a sliding seat 202 is slidably connected to the side end of the fixed seat 201, starting the motor installed at the side end of the sliding seat 202 can drive the first rotating shaft 204 fixedly connected to the output end of the motor to rotate. Since the three-jaw chuck 203 is fixedly connected to the first rotating shaft 204, after fixing the steel pipe to be welded through the three-jaw chuck 203, the steel pipe can be driven to rotate, so that the steel pipe can be rotated evenly, and the steel pipe can be better welded. Since the two first bevel gears 208 fixed on the first rotating shaft 204 and the second rotating shaft 207 are engaged, and the second bevel gears 210 fixed on the second rotating shaft 207 and the rotating rod 209 are engaged, the rotating rod 209 can be driven to rotate in the sliding seat 202. Since the rotating rod 209 is detachably connected to the adjusting screw rod 205, and the adjusting screw rod 205 is threadedly connected to the fixed seat 201, when the motor is started, the adjusting screw rod 205 can also be driven to rotate to adjust the distance between the sliding seat 202 and the base 1. When it is necessary to adjust the distance between the sliding seat 202 and the fixed seat 201, rotate the threaded sleeve 304 rotating at the side end of the sliding seat 202. Since the threaded sleeve 304 is threadedly connected to the first screw rod 303, and the side end cross section of the first screw rod 303 is square-shaped and the first screw rod 303 is slidably connected to the sliding seat 202, the first screw rod 303 can be driven to slide in the rotating rod 209 when the threaded sleeve 304 is rotated. Since a first inserting rod 301 is slidably connected in the rotating rod 209, and the fixed shaft 305 fixed to the side end of the first screw rod 303 is rotatably connected to the first inserting rod 301, the first inserting rod 301 can be driven to slide when the first screw rod 303 slides back and forth. When the first inserting rod 301 is inserted into the first inserting slot 302, the rotation of the rotating rod 209 can drive the adjusting screw rod 205 to rotate, so that the distance between the sliding seat 202 and the fixed seat 201 can be adjusted according to the length of the steel pipe. When the steel pipe is placed on the tops of the fixed seat 201 and the sliding seat 202, starting the cylinders 409 installed in the fixed seat 201 and the sliding seat 202 can drive the second connecting rod 408 at the top of the cylinder 409 to slide upward. Since the second connecting rod 408 is slidably connected to the second rack 406, the second rack 406 can be driven to slide upward. Since the first gear 407 rotating in the fixed seat 201 is engaged with the first rack 405 and the second rack 406 at both ends respectively, when the second rack 406 slides upward, the first rack 405 can be driven to slide downward. Since a first connecting rod 401 is fixedly connected to the top of the first rack 405, the first clamping rod 402 and the second clamping rod 403 can be driven to slide toward each other. When the positioning wheels 404 rotating on the first clamping rod 402 and the second clamping rod 403 are in contact with the steel pipe, the steel pipe can be positioned, so that the steel pipe can be supported and fixed, which is convenient for welding the steel pipe. Since a detection seat 513 is slidably connected to the top of the base 1, starting the servo motor installed at the top of the detection seat 513,The fourth rotating shaft 511 fixed to the output end of the servo motor can be driven to rotate. Since the side ends of the third rotating shaft 501 and the fourth rotating shaft 511 are fixedly connected to the third bevel gear 503, and the second screw 502 rotates in the detection seat 513, the two third bevel gears 503 fixed on the second screw 502 and the fourth rotating shaft 511 are meshed with each other, so that when the servo motor is started, multiple second screws 502 can be driven to rotate in the detection seat 513. After the steel pipe is positioned, the motor installed on the slide 202 is started again to adjust the slide 202 to slide. Since the three-jaw chuck 203 installed on the side end of the slide 202 can clamp and fix the steel pipe, it can drive the steel pipe to slide. When the steel pipe slides to the fixed seat 201 conflicts, then start the servo motor, can drive the second screw 502 to slide in the detection seat 513, because the second screw 502 and the slide bar 504 are threadedly connected, can drive the slide bar 504 to rotate in the detection seat 513, because the installation rod 505 is slidably connected in the slide bar 504, so after the conflict wheel 506 conflicts with the inside of the steel pipe, turn off the servo motor to stop working, and then drive the steel pipe to rotate by rotating the three-jaw chuck 203, if the welding end of the steel pipe is bent, etc., can drive the installation rod 505 to slide in the slide bar 504 through the conflict wheel 506, because the first conductive sheet 508 is electrically connected to the internal power supply, the second conductive sheet 509 is electrically connected to the warning light 510 The warning light 510 is electrically connected to the power supply, so when the first conductive sheet 508 and the second conductive sheet 509 collide, a circulating circuit can be formed. Therefore, the warning light 510 works to remind the side end of the steel pipe to deviate, so that the welding joint of the steel pipe can be inspected. Since the fixing frame 601 is fixedly connected to the side end of the detection seat 513, after the pipe mouth inspection of the steel pipe is completed, the motor is started to drive the steel pipe to slide to both ends through the slide 202, and then the detection seat 513 is slid. When the fixing frame 601 and the slide 202 are aligned, the steel pipe is driven to slide inward through the slide 202. When the two steel pipes collide, the block 703 sliding in the chuck 702 is pressed. When the block 703 and the top of the rotating seat 602 are aligned, the steel pipe is driven to slide inward. After the slot 704 at the end is separated, the rotating seat 602 can be adjusted by the rotating rod 701. When the rotating seat 602 is rotated to the point where the fixed column 604 is facing downward, the elastic force of the third spring 705 can drive the block 703 and the slot 704 at the bottom end of the rotating seat 602 to engage again, so that the rotating seat 602 can be limited and fixed. Then the turning handle 609 is turned. Since the first guide rod 611 and the third screw 610 fixed on the turning handle 609 are slidably connected, and the third screw 610 and the fixed column 604 are threadedly connected, and the second guide rod 612 fixed on the third screw 610 and the fifth rotating shaft 606 are slidably connected, when the turning handle 609 is turned, the fifth rotating shaft 606 can be driven to rotate in the adjusting rod 605.Since the second gear 607 fixed on the fifth rotating shaft 606 meshes with the third rack 608 fixed in the adjusting rod 605, the height of the adjusting rod 605 can be adjusted. When the cleaning cotton fixed at the top end of the adjusting rod 605 contacts the steel pipe, the surface of the steel pipe can be cleaned when the steel pipe rotates. By screwing the third screw 610 with the fixed column 604, the adjusting rod 605 and the fixed column 604 can be limited and fixed due to the non-automatically rotatable property of the third screw 610. After the cleaning is completed, rotate the rotating seat 602 until the fixed column 604 faces upward, and then install the laser welding head at the other end of the slider 603, so that the steel pipe can be welded at a uniform speed. Thus, the steel pipe can be cleaned before welding, and at the same time, it is also convenient to weld and fix the steel pipe at a uniform speed. When it is necessary to move the detection seat 513, start the motor installed in the base 1, which can drive the sixth rotating shaft 801 fixed at the output end of the motor to rotate. Then, press the push plate 907, which can drive the second insertion rod 904 to slide in the reciprocating screw rod 903. When the second insertion rod 904 is inserted into the second slot 905 provided in the sixth rotating shaft 801, the rotation of the sixth rotating shaft 801 can drive the rotating rod of the reciprocating screw rod 903. Since the threaded block 902 fixed on the positioning block 901 is threadedly connected with the reciprocating screw rod 903, the detection seat 513 can be driven to slide on the top end of the base 1. By engaging the fixing ring 909 fixed on the side end of the push plate 907 with the fixing groove 908 provided on the side end of the rotating plate 906, the automatic separation of the second insertion rod 904 and the second slot 905 can be prevented. When the detection seat 513 slides to the leftmost end of the base 1, pull out the second insertion rod 904 from the second slot 905. Since the fifth bevel gears 803 fixed on the sixth rotating shaft 801 and the seventh rotating shaft 802 mesh with each other, the rotation of the sixth rotating shaft 801 can drive the seventh rotating shaft 802 to rotate, so that the heat dissipation fan blades 804 fixed on the seventh rotating shaft 802 can be driven to rotate. When the first partition net 805 contacts the second partition net 806, the heat dissipation treatment can be carried out on the welded part of the steel pipe in the fixing frame 601, which can better use the steel pipe.,

[0060] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights involved.

[0061] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A construction device for building steel structures, characterized in that, It includes a base (1), an adjustment structure (2) is installed on the base (1), a connection structure (3) is installed inside the adjustment structure (2), a positioning structure (4) is installed inside the adjustment structure (2), a detection structure (5) is installed at the top of the base (1), a cleaning structure (6) is installed at the side end of the detection structure (5), a rotating structure (7) is installed at the top of the cleaning structure (6), a heat dissipation structure (8) is installed inside the base (1), and a transmission structure (9) is installed inside the base (1); The adjustment structure (2) includes a fixed seat (201), fixed seats (201) are fixedly connected to both ends of the base (1), a sliding seat (202) is slidably connected to the side end of the fixed seat (201), a three-jaw chuck (203) is rotatably connected to the side end of the sliding seat (202), a first rotating shaft (204) is rotatably connected inside the sliding seat (202), the first rotating shaft (204) is fixedly connected to the three-jaw chuck (203), the other end of the first rotating shaft (204) is fixedly connected to the output end of an external motor, an adjustment screw rod (205) is rotatably connected to the bottom end of the sliding seat (202), the adjustment screw rod (205) is threadedly connected to the fixed seat (201), a protective cover (206) is fixedly connected to the side end of the sliding seat (202), the protective cover (206) is slidably connected to the fixed seat (201), a second rotating shaft (207) is rotatably connected inside the sliding seat (202), first bevel gears (208) are fixedly connected to the side ends of the first rotating shaft (204) and the second rotating shaft (207), the two first bevel gears (208) are engaged, a rotating rod (209) is rotatably connected to the bottom end of the sliding seat (202), second bevel gears (210) are fixedly connected to the second rotating shaft (207) and the rotating rod (209), the two second bevel gears (210) are engaged, and the rotating rod (209) is detachably connected to the adjustment screw rod (205); The detection structure (5) includes a third rotating shaft (501). A detection seat (513) is slidably connected to the top end of the base (1). The third rotating shaft (501) is rotatably connected to the side end of the detection seat (513). A second screw rod (502) is rotatably connected inside the detection seat (513). Third bevel gears (503) are fixedly connected to the side ends of the third rotating shaft (501) and the second screw rod (502). The two third bevel gears (503) are meshed with each other. A slide rod (504) is slidably connected to the side end of the detection seat (513). The second screw rod (502) is in threaded connection with the slide rod (504). A mounting rod (505) is slidably connected inside the slide rod (504). A contact wheel (506) is rotatably connected to the side end of the mounting rod (505). A second spring (507) is fixedly connected between the slide rod (504) and the mounting rod (505). A fourth rotating shaft (511) is rotatably connected inside the detection seat (513). Fourth bevel gears (512) are fixedly connected to the side ends of the third rotating shaft (501) and the fourth rotating shaft (511). The two fourth bevel gears (512) are meshed with each other. A first conductive sheet (508) is fixedly connected to the side end of the mounting rod (505). A second conductive sheet (509) is fixedly connected to the side end of the slide rod (504). A warning lamp (510) is fixedly connected to the side end of the base (1).

2. The construction device for a building steel structure according to claim 1, wherein: The connection structure (3) includes a first plug rod (301). The first plug rod (301) is slidably connected inside the rotating rod (209). A first slot (302) is provided inside the adjusting screw rod (205). The first plug rod (301) is inserted into the first slot (302). A threaded sleeve (304) is rotatably connected to the side end of the sliding seat (202). A first screw rod (303) is in threaded connection inside the threaded sleeve (304). The first screw rod (303) is slidably connected to the rotating rod (209). A fixed shaft (305) is fixedly connected to the side end of the first screw rod (303). The fixed shaft (305) is rotatably connected to the first plug rod (301).

3. The construction device for a building steel structure according to claim 1, characterized in that: The positioning structure (4) includes a first connecting rod (401). The first connecting rod (401) is slidably connected in the fixed seat (201). A first clamping rod (402) is fixedly connected to the side end of the first connecting rod (401). A second clamping rod (403) is slidably connected in the fixed seat (201). Positioning wheels (404) are rotatably connected to the side ends of the first clamping rod (402) and the second clamping rod (403). A first rack (405) is fixedly connected to the bottom end of the first connecting rod (401). A second rack (406) is fixedly connected to the bottom end of the second clamping rod (403). A first gear (407) is rotatably connected in the fixed seat (201). Both the first rack (405) and the second rack (406) are meshed with the first gear (407). A second connecting rod (408) is fixedly connected to the side end of the second rack (406). A cylinder (409) is installed in the fixed seat (201). The output end of the cylinder (409) is fixedly connected to the second connecting rod (408).

4. The construction device for a building steel structure according to claim 1, characterized in that: The cleaning structure (6) includes a fixed frame (601). The fixed frame (601) is fixedly connected to the side end of the detection seat (513). A rotating seat (602) is rotatably connected to the top end of the fixed frame (601). A slider (603) is slidably connected in the rotating seat (602). A fixed column (604) is fixedly connected to the top end of the slider (603). An adjusting rod (605) is slidably connected in the fixed column (604). A cleaning cotton is installed at the top end of the adjusting rod (605). A fifth rotating shaft (606) is slidably connected in the adjusting rod (605). A second gear (607) is fixedly connected to the side end of the fifth rotating shaft (606). A third rack (608) is fixedly connected in the adjusting rod (605). The second gear (607) is meshed with the third rack (608). A turning handle (609) is rotatably connected to the side end of the fixed column (604). A third screw rod (610) is rotatably connected in the turning handle (609). A first guide rod (611) is fixedly connected to the side end of the turning handle (609). The first guide rod (611) is slidably connected to the third screw rod (610). A second guide rod (612) is fixedly connected to the side end of the third screw rod (610). The second guide rod (612) is slidably connected to the fifth rotating shaft (606).

5. The construction device for a building steel structure according to claim 4, characterized in that: The rotating structure (7) includes a rotating rod (701). The rotating rod (701) is fixedly connected to the side end of the fixed frame (601). The rotating rod (701) is rotatably connected to the rotating seat (602). A chuck (702) is fixedly connected to the side end of the rotating rod (701). A clamping block (703) is slidably connected in the chuck (702). Slots (704) are provided at both the top end and the bottom end of the rotating seat (602). The clamping block (703) is engaged with the slots (704). A third spring (705) is fixedly connected between the clamping block (703) and the chuck (702).

6. The construction device for a building steel structure according to claim 4, characterized in that: The heat dissipation structure (8) includes a sixth rotating shaft (801). The sixth rotating shaft (801) is rotatably connected inside the base (1). A seventh rotating shaft (802) is rotatably connected inside the base (1). Fifth bevel gears (803) are fixedly connected to the side ends of the sixth rotating shaft (801) and the seventh rotating shaft (802). The two fifth bevel gears (803) are meshed. A heat dissipation fan blade (804) is fixedly connected to the top end of the seventh rotating shaft (802). A first separation net (805) is fixedly connected to the top end of the base (1). A second separation net (806) is fixedly connected to the bottom end of the fixed frame (601).

7. The construction device for a building steel structure according to claim 6, characterized in that: The transmission structure (9) includes a positioning block (901). The positioning block (901) is fixedly connected to the bottom end of the detection base (513). The positioning block (901) is slidably connected to the base (1). A threaded block (902) is fixedly connected inside the positioning block (901). A reciprocating lead screw (903) is rotatably connected inside the base (1). The reciprocating lead screw (903) is threadedly connected to the threaded block (902). A second insertion rod (904) is slidably connected inside the reciprocating lead screw (903). A second insertion slot (905) is provided on the side end of the sixth rotating shaft (801). The second insertion rod (904) is inserted into the second insertion slot (905). The second insertion rod (904) is rotatably connected to the base (1). A rotating plate (906) is slidably connected to the side end of the second insertion rod (904). The rotating plate (906) is rotatably connected to the base (1).

8. The construction device for a building steel structure according to claim 7, characterized in that: A push plate (907) is fixedly connected to the side end of the second insertion rod (904). A fixing groove (908) is provided on the side end of the rotating plate (906). A fixing ring (909) is fixedly connected to the side end of the push plate (907). The fixing groove (908) is engaged with the fixing ring (909).

9. The construction method of a construction device for a building steel structure according to any one of claims 1-8, characterized in that, It includes the following steps: S1: First, start the positioning structure (4) to support and fix the steel pipes placed at both ends of the base (1). Through the adjusting structure (2) installed on the side end of the base (1), it can be adjusted according to the length of the steel pipe and can also drive the steel pipe to rotate at a constant speed. The connecting structure (3) can assist the adjusting structure (2) in working; S2: Then, through the detection structure (5), the pipe orifice of the steel pipe can be detected. At the same time, according to the positioning structure (4), the steel pipe can be supported and it is also convenient for the steel pipe to rotate on the side end of the base (1); S3: Through the cleaning structure (6), when welding the steel pipe, the welding part of the steel pipe can be cleaned first, and the welding head can also be fixed, which is convenient for welding the steel pipe. Through the rotating structure (7), the cleaning structure (6) can be rotated and adjusted; S4: Through the heat dissipation structure (8), heat dissipation treatment can be carried out on the welded steel pipe. At the same time, through the transmission structure (9), the heat dissipation structure (8) and the detection structure (5) can be driven.

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