A multifunctional seam welding device for signal tower production

Abstract

The present invention discloses a multifunctional joint welding device for signal tower production, including a joint mechanism for butt-joining the joints of steel pipes that need to be welded; the joint mechanism includes a lower support frame, an upper support frame, a rotating frame and a clamping assembly, the lower support frame is fixed on the foundation, the upper support frame is located above the lower support frame, and is connected to the lower support frame and the upper support frame through a lifting device, the rotating frame is rotatably mounted on the upper support frame, and the clamping assembly is fixedly arranged in the rotating frame; a feeding mechanism is used to support and convey steel pipes. Through integrated mechanical design and intelligent control technology, the welding of longitudinal seams and circumferential seams of large-diameter steel pipes is realized through one device, and at the same time, the joint mechanism plasticizes the steel pipes that need to be jointed through a unified mold, ensuring the uniformity of the roundness of each steel pipe, reducing the difficulty of butt-joining and welding, and using two sets of welding devices to weld the seams inside and outside the steel pipe, while reducing manpower dependence and improving welding efficiency and quality.

Description

Technical Field

[0001] The invention belongs to the technical field of steel pipe seam welding equipment, and in particular relates to a multifunctional seam welding device for signal tower production. Background Art

[0002] Steel pipe joint welding equipment is a key equipment for the production of large-diameter steel pipes. Such steel pipes are generally used in communication towers, wind turbine towers, and main transmission pipelines for oil, natural gas, tap water, ocean and other projects. Existing welding equipment can only weld the longitudinal seams or circumferential seams of steel pipes. Some steel pipes are long and require multiple sections of steel pipes to be welded together. Currently, the longitudinal seam welding can only be completed on the longitudinal seam welding equipment and then transferred to the circumferential seam welding equipment for welding. The welding process has a high degree of manual participation and low efficiency. In addition, the existing longitudinal seam welding equipment generally uses two hydraulic cylinders to simply extrude the steel pipes on both sides of the gap, and then welds the gap of the steel pipe through the welding mechanism. However, the roundness of the steel pipe welded in this way is not uniform, and it is difficult to align during circumferential seam welding, which increases the difficulty of welding. At the same time, the existing welding equipment only welds the gap on the outside of the steel pipe, which affects the welding quality of the steel pipe.

[0003] Therefore, we need to design a multifunctional seam welding device for signal tower production to solve these problems. Summary of the invention

[0004] The problem to be solved by the present invention is to provide a multifunctional seam welding device for signal tower production. The device, through integrated mechanical design and intelligent control technology, realizes the welding of longitudinal seams and circumferential seams of large-diameter steel pipes through a single device. At the same time, the seam welding mechanism plasticizes the steel pipes that need to be seamed through a unified mold, ensuring the uniformity of the roundness of each steel pipe and reducing the difficulty of docking and welding. Two sets of welding devices can be used to weld the seams on the inside and outside of the steel pipe, while reducing manpower dependence and improving welding efficiency and quality.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A multifunctional joint welding device for signal tower production, comprising a joint mechanism for butting the joints of steel pipes to be welded;

[0007] The joint mechanism comprises a lower support frame, an upper support frame, a rotating frame and a clamping assembly, wherein the lower support frame is fixed on the foundation, the upper support frame is located above the lower support frame and is connected to the lower support frame and the upper support frame through a lifting device, the rotating frame is rotatably mounted on the upper support frame, and the clamping assembly is fixedly arranged in the rotating frame;

[0008] Feeding mechanism, used to support and convey steel pipes;

[0009] A welding mechanism, used for welding the seams aligned by the seaming mechanism;

[0010] The welding mechanism comprises an outer welding assembly and an inner welding assembly, wherein the outer welding assembly is arranged at one side of the seaming mechanism, and the inner welding assembly is slidably arranged at one side of the seaming mechanism adjacent to the outer welding assembly, and the moving direction thereof is perpendicular to the moving direction of the feeding mechanism;

[0011] The outer welding assembly and the inner welding assembly each include a base plate, a column, a lifting frame, a telescopic beam, a welding head and an anti-fall mechanism, the base plate is slidably arranged on the foundation, the column is fixedly arranged on the base plate, the lifting frame is slidably mounted on the column, the anti-fall mechanism is respectively arranged on the column and the lifting frame, and cooperates with each other, the telescopic beam is slidably arranged on the lifting frame, the welding head is arranged at one end of the telescopic beam, and the welding head on the inner welding assembly is located on the inner side of the steel pipe, and the welding head on the outer welding assembly is located on the outer side of the steel pipe;

[0012] A control cabinet is also fixedly arranged on the bottom plate of the outer welding assembly, and the control cabinet is electrically connected to the outer welding assembly, the inner welding assembly, the feeding mechanism and the seaming mechanism respectively.

[0013] Preferably, a telescopic rack and a telescopic limit strip are fixedly provided on the telescopic beam, and a telescopic motor, a telescopic limit frame, a lifting limit frame and a plurality of support wheels are provided on the lifting frame, and the plurality of support wheels are divided into two groups, the lifting frame is connected to the column through one group of support wheels, and the telescopic beam is connected to the lifting frame through another group of support wheels, the output end of the telescopic motor is meshed with the telescopic rack through a gear, and the telescopic limit frame is slidably connected to the telescopic limit strip.

[0014] Preferably, a fixed seat and a lifting motor are provided on the top of the column, a sprocket is rotatably provided on the fixed seat, a chain is fitted on the sprocket, one end of the chain is connected to the counterweight block in the column, and the other end is connected to the lifting frame, a lifting limit strip is also fixedly provided on the column, and the lifting limit frame is slidably connected to the lifting limit strip.

[0015] Preferably, the anti-fall mechanism includes an anti-fall rack and an anti-fall tooth, the anti-fall rack is fixedly arranged on the column, the anti-fall tooth is rotatably arranged on the lifting frame on one side of the anti-fall rack through a rotating shaft, and the chain is connected to the anti-fall tooth on one side of the rotating shaft, and a spring is arranged on the anti-fall tooth on the other side of the rotating shaft, and the spring is also connected to the lifting frame.

[0016] Preferably, there are two columns on the external welding assembly, the two columns are connected by a stabilizing beam, and the lifting frames on the two columns are opposite to each other, a platform plate is fixedly provided on the two telescopic beams, a mounting seat is provided on the platform plate, and the welding head on the external welding assembly is fixedly connected to the mounting seat.

[0017] Preferably, a translation module is fixedly arranged at the bottom of the base plate, a ground rail is arranged below the translation module, the ground rail is fixedly arranged on the foundation, the translation module is slidably arranged on the ground rail, a mobile motor is arranged on one side of the base plate, and the output end of the mobile motor is connected to the translation module.

[0018] Preferably, a plurality of guide tubes are fixedly provided on the lower support frame, a guide rod is slidably inserted into each of the guide tubes, one end of the guide rod is connected to the upper support frame, a rotating shaft is rotatably provided on the upper support frame, a rotating wheel is fixedly provided on the rotating shaft, the rotating frame is mounted on the upper support frame through the rotating wheel, a rotary motor and a limiting wheel are fixedly provided on the upper support frame, the output end of the rotary motor is fixedly connected to one end of the rotating shaft, and the limiting wheel rotates in fit with the rotating frame.

[0019] Preferably, the clamping assembly includes a fixed frame, a bracket, a semi-ring fastener and a locking cylinder. There are two fixed frames and two semi-ring fasteners. The two fixed frames are respectively fixedly arranged on the rotating frame. The two ends of the bracket are respectively connected to the fixed frames. The two semi-ring fasteners are hinged to the two fixed frames one by one. The locking cylinder is hinged to one of the semi-ring fasteners, and the output end is hinged to the other semi-ring fastener. When the free ends of the two semi-ring fasteners are connected, they will form a circular ring with the bracket.

[0020] Preferably, the feeding mechanism includes a feeding rail and a feeding trolley, the feeding rail is fixedly set on the foundation, the feeding trolley is set on the feeding rail, the feeding trolley includes a frame and a connecting frame, there are two frames, the two frames are connected by the connecting frame, each of the frames is provided with two track wheels, two adjustment wheels, a walking motor and an adjustment motor, the two track wheels are located at the bottom of the frame and are in contact with the feeding rail, the output end of the walking motor is connected to the track wheel, the two adjustment wheels are located at the top of the frame, and the output end of the adjustment motor is connected to the adjustment wheel.

[0021] Preferably, the welding machine head includes a first slide, a second slide, a third slide and a universal bracket, the first slide, the second slide and the third slide all include a mounting frame, a sliding plate, a sliding rod, a lead screw and a driving motor, the sliding rod and the lead screw are both arranged on the inner side of the mounting frame, the sliding plate is slidably arranged on the mounting frame through the sliding rod and is connected to the lead screw, the driving motor is fixedly arranged on the mounting frame, and the output end is connected to the lead screw, the sliding plate on the first slide is fixedly connected to the telescopic beam, the sliding plate on the second slide is connected to the mounting frame on the first slide, the sliding plate on the third slide is connected to the mounting frame on the second slide, the universal bracket is fixedly arranged on the mounting frame of the third slide, a welding gun, a clamping plate, a discharge nozzle and a camera are fixedly arranged on the universal bracket, a reinforcement support is also fixedly arranged on the mounting frame on the first slide, and the reinforcement support is also connected to the sliding plate on the second slide.

[0022] The advantages and positive effects of the present invention are:

[0023] The present invention realizes the welding of longitudinal seams and circumferential seams of large-diameter steel pipes through an integrated mechanical design and intelligent control technology through a single device. At the same time, the seaming mechanism plasticizes the steel pipes that need to be seamed through a unified mold, ensuring the uniformity of the roundness of each steel pipe and reducing the difficulty of butt jointing and welding. Two sets of welding devices can be used to weld the seams inside and outside the steel pipe, while reducing manpower dependence and improving welding efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0025] Figure 1 It is a schematic diagram of the overall distribution structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the structure of the external welding assembly of the present invention;

[0027] Figure 3 It is a schematic diagram of the structure of the inner welding assembly of the present invention;

[0028] Figure 4 It is a schematic diagram of the positions of the telescopic rack and the telescopic motor on the inner welding assembly of the present invention;

[0029] Figure 5It is a structural schematic diagram of the seam-joining mechanism of the present invention;

[0030] Figure 6 It is a front structural schematic diagram of the seam-joining mechanism of the present invention;

[0031] Figure 7 It is a structural schematic diagram of the feeding vehicle of the present invention;

[0032] Figure 8 It is a schematic diagram of the lifting frame structure of the present invention;

[0033] Fig. 9 It is a schematic structural diagram of a welding machine head of the present invention;

[0034] Fig.10 It is a schematic structural diagram of the first slide, the second slide and the third slide of the present invention;

[0035] Fig.11 It is a schematic diagram of the connection structure of the counterweight block and the lifting frame of the present invention;

[0036] Fig.12 yes Fig.11 A schematic diagram of the enlarged structure in FIG.

[0037] The following are the descriptions of the reference numerals:

[0038] 1. Feeding mechanism; 11. Feeding rail; 12. Feeding car; 121. Carriage; 122. Track wheel; 123. Travel motor; 124. Adjusting wheel; 125. Adjusting motor; 126. Connecting frame; 2. Welding mechanism; 201. External welding assembly; 2011. Ladder; 2012. Platform plate; 2013. Stable beam; 2014. Mounting seat; 2015. Guardrail; 202. Internal welding assembly; 203. Column; 204. Lift Lowering frame; 205, lifting limit frame; 206, lifting limit strip; 207, sprocket; 208, lifting motor; 209, fixed seat; 210, counterweight; 211, chain; 212, anti-fall rack; 213, anti-fall clamping teeth; 214, welding machine; 215, welding head; 216, telescopic limit strip; 217, vacuum cleaner; 218, welding auxiliary box; 219, support wheel; 220, telescopic rack; 221, telescopic motor; 222 , telescopic limit frame; 223, telescopic beam; 224, spring; 225, rotating shaft; 226, bottom plate; 227, ground rail; 228, translation module; 229, mobile motor; 230, drag chain; 251, first slide; 252, second slide; 253, third slide; 254, universal bracket; 255, welding gun; 256, clamp; 257, discharge nozzle; 258, camera; 261, mounting frame; 262, drive motor; 26 3. Lead screw; 264. Slide rod; 265. Sliding plate; 266. Reinforcement support; 3. Joint mechanism; 301. Lower support frame; 302. Guide rod; 303. Lifting device; 304. Guide tube; 305. Upper support frame; 306. Rotating shaft; 307. Rotating wheel; 308. Limiting wheel; 309. Rotating wheel motor; 310. Rotating frame; 311. Fixed frame; 312. Bracket; 313. Semi-ring fastener; 314. Locking cylinder. DETAILED DESCRIPTION

[0039] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0040] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0041] The present invention will be further described below in conjunction with the accompanying drawings:

[0042] Example 1: Figure 1-Figure 12 As shown, a multifunctional joint welding device for signal tower production includes a joint mechanism 3 for butting the joints of steel pipes to be welded;

[0043] The seam-joining mechanism 3 comprises a lower support frame 301, an upper support frame 305, a rotating frame 310 and a clamping assembly. The lower support frame 301 is fixed on the foundation, the upper support frame 305 is located above the lower support frame 301, and is connected to the lower support frame 301 and the upper support frame 305 through a lifting device 303. The rotating frame 310 is rotatably mounted on the upper support frame 305, and the clamping assembly is fixedly arranged in the rotating frame 310.

[0044] Feeding mechanism 1, used for supporting and conveying steel pipes;

[0045] The welding mechanism 2 is used to weld the seams aligned by the seaming mechanism 3;

[0046] The welding mechanism 2 includes an outer welding assembly 201 and an inner welding assembly 202. The outer welding assembly 201 is arranged on one side of the seaming mechanism 3. The inner welding assembly 202 is slidably arranged on one side of the seaming mechanism 3 adjacent to the outer welding assembly 201, and the moving direction is perpendicular to the moving direction of the feeding mechanism 1.

[0047] like Figure 2 , Figure 3 and Figure 4 As shown, both the outer welding assembly 201 and the inner welding assembly 202 include a bottom plate 226, a column 203, a lifting frame 204, a telescopic beam 223, a welding head 215 and an anti-falling mechanism. The bottom plate 226 is slidably arranged on the foundation, the column 203 is fixedly arranged on the bottom plate 226, the lifting frame 204 is slidably installed on the column 203, the anti-falling mechanism is respectively arranged on the column 203 and the lifting frame 204, and cooperates with each other, the telescopic beam 223 is slidably arranged on the lifting frame 204, the welding head 215 is arranged at one end of the telescopic beam 223, and the welding head 215 on the inner welding assembly 202 is located on the inner side of the steel pipe, and the welding head 215 on the outer welding assembly 201 is located on the outer side of the steel pipe;

[0048] A control cabinet is also fixedly disposed on the bottom plate 226 of the outer welding assembly 201 , and the control cabinet is electrically connected to the outer welding assembly 201 , the inner welding assembly 202 , the feeding mechanism 1 and the seaming mechanism 3 , respectively.

[0049] The telescopic beam 223 is fixedly provided with a telescopic rack 220 and a telescopic limit strip 216. Figure 8 As shown, the lifting frame 204 is provided with a telescopic motor 221, a telescopic limit frame 222, a lifting limit frame 205 and a plurality of support wheels 219. The plurality of support wheels 219 are divided into two groups. The lifting frame 204 is connected to the column 203 through a group of support wheels 219, and the telescopic beam 223 is connected to the lifting frame 204 through another group of support wheels 219. The output end of the telescopic motor 221 is meshed with the telescopic rack 220 through a gear, and the telescopic limit frame 222 is slidably connected to the telescopic limit bar 216.

[0050] A fixed seat 209 and a lifting motor 208 are provided at the top of the column 203. A sprocket 207 is rotatably provided on the fixed seat 209. A chain 211 is fitted on the sprocket 207. One end of the chain 211 is connected to the counterweight block 210 in the column 203, and the other end is connected to the lifting frame 204. A lifting limit strip 206 is also fixedly provided on the column 203, and the lifting limit frame 205 is slidably connected to the lifting limit strip 206.

[0051] The support wheel 219 can reduce the friction between the lifting frame 204 and the column 203 and the telescopic beam 223, and the cooperation between the lifting limit strip 206 and the lifting limit frame 205 can prevent the lifting frame 204 from falling off the column 203, and the cooperation between the telescopic limit strip 216 and the telescopic limit frame 222 can prevent the telescopic beam 223 from falling off the telescopic frame.

[0052] like Fig.11 and Fig.12 As shown, the anti-fall mechanism includes an anti-fall rack 212 and an anti-fall tooth 213. The anti-fall rack 212 is fixedly arranged on the column 203. The anti-fall tooth 213 is rotatably arranged on the lifting frame 204 on one side of the anti-fall rack 212 through a rotating shaft 225. The chain 211 is connected to the anti-fall tooth 213 on one side of the rotating shaft 225. A spring 224 is arranged on the anti-fall tooth 213 on the other side of the rotating shaft 225, and the spring 224 is also connected to the lifting frame 204.

[0053] In order to reduce the pressure when the lifting motor 208 is running, under normal circumstances, the masses of both ends of the chain 211 are basically the same, and the external welding component 201 is used as two columns 203, so there are two lifting motors 208 and fixed seats 209, and the welding platform composed of two telescopic beams 223 and a platform plate 2012 is controlled by the synchronous operation of two sets of chains 211 to control the lifting and lowering, so the weight of the counterweight block 210 at the end of the chain 211 on each column 203 is half the weight of the welding platform; when in normal operating state, under the gravity of the welding platform, the anti-falling tooth 213 will separate from the anti-falling rack 212, and the spring 224 will be compressed. When the chain 211 breaks, the tension above the anti-falling tooth 213 will disappear, and the spring 224 will extend, pushing the anti-falling tooth 213 to contact the anti-falling rack 212 to prevent the telescopic beam 223 or the welding platform from falling quickly and causing damage to the equipment.

[0054] There are two columns 203 on the external welding assembly 201, and the two columns 203 are connected by a stabilizing beam 2013, and the lifting frames 204 on the two columns 203 are opposite to each other. A platform plate 2012 is fixedly arranged on the two telescopic beams 223, and a mounting seat 2014 is arranged on the platform plate 2012. The welding head 215 on the external welding assembly 201 is fixedly connected to the mounting seat 2014.

[0055] On the platform plate 2012 of the external welding assembly 201, a guardrail 2015 is fixed along the edge of the platform plate 2012 to ensure the safety of the workers, and a ladder 2011 is fixed on one of the columns 203 to facilitate the workers to reach the welding platform when the platform is too high.

[0056] A translation module 228 is fixedly arranged at the bottom of the base plate 226, and a ground rail 227 is arranged below the translation module 228. The ground rail 227 is fixedly arranged on the foundation, and the translation module 228 is slidably arranged on the ground rail 227. A mobile motor 229 is arranged on one side of the base plate 226, and the output end of the mobile motor 229 is connected to the translation module 228. After the output, the mobile motor 229 can drive the mobile module to move along the ground rail 227, so as to adjust the position of the external welding component 201 and the internal welding component 202. In addition, a drag chain 230 is also connected to the mobile motor 229, and the other end of the drag chain 230 is connected to the foundation, which can protect the power cord of the mobile motor 229 and avoid damage to the power cord of the mobile motor 229.

[0057] A plurality of guide tubes 304 are fixedly provided on the lower support frame 301, and a guide rod 302 is slidably inserted into each guide tube 304, one end of the guide rod 302 is connected to the upper support frame 305, and a rotating shaft 306 is rotatably provided on the upper support frame 305, and a rotating wheel 307 is fixedly provided on the rotating shaft 306. The rotating frame 310 is installed on the upper support frame 305 through the rotating wheel 307. A rotating motor 309 and a limiting wheel 308 are also fixedly provided on the upper support frame 305, and the output end of the rotating motor 309 is fixedly connected to one end of the rotating shaft 306, and the limiting wheel 308 rotates in fit with the rotating frame 310.

[0058] like Figure 5 and Figure 6 As shown, the clamping assembly includes a fixed frame 311, a bracket 312, a semi-ring fastener 313 and a locking cylinder 314. There are two fixed frames 311 and two semi-ring fasteners 313. The two fixed frames 311 are respectively fixedly arranged on the rotating frame 310. The two ends of the bracket 312 are respectively connected to the fixed frames 311. The two semi-ring fasteners 313 are hinged to the two fixed frames 311 one by one. The locking cylinder 314 is hinged to one of the semi-ring fasteners 313, and the output end is hinged to the other semi-ring fastener 313. When the free ends of the two semi-ring fasteners 313 are connected, they will form a ring with the bracket 312.

[0059] like Figure 7 As shown, the feeding mechanism 1 includes a feeding rail 11 and a feeding trolley 12. The feeding rail 11 is fixedly arranged on the foundation, and the feeding trolley 12 is arranged on the feeding rail 11. The feeding trolley 12 includes a frame 121 and a connecting frame 126. There are two frames 121, and the two frames 121 are connected by the connecting frame 126. Each frame 121 is provided with two track wheels 122, two adjustment wheels 124, a walking motor 123 and an adjustment motor 125. The two track wheels 122 are both located at the bottom of the frame 121 and are in contact with the feeding rail 11. The output end of the walking motor 123 is connected to the track wheel 122. The two adjustment wheels 124 are located at the top of the frame 121, and the output end of the adjustment motor 125 is connected to the adjusting wheel 124.

[0060] like Fig. 9 and Fig.10As shown, the welding head 215 includes a first slide 251, a second slide 252, a third slide 253 and a universal bracket 254. The first slide 251, the second slide 252 and the third slide 253 all include a mounting frame 261, a sliding plate 265, a slide bar 264, a lead screw 263 and a drive motor 262. The slide bar 264 and the lead screw 263 are both arranged on the inner side of the mounting frame 261. The sliding plate 265 is slidably arranged on the mounting frame 261 through the slide bar 264 and is connected to the lead screw 263. The drive motor 262 is fixedly arranged on the mounting frame 261, and the output end is connected to the lead screw 263. The sliding plate on the first slide 251 265 is fixedly connected to the telescopic beam 223, the sliding plate 265 on the second slide 252 is connected to the mounting frame 261 on the first slide 251, the sliding plate 265 on the third slide 253 is connected to the mounting frame 261 on the second slide 252, the universal bracket 254 is fixedly set on the mounting frame 261 of the third slide 253, and the welding gun 255, the clamping plate 256, the discharge nozzle 257 and the camera 258 are fixedly set on the universal bracket 254, and a reinforcement support 266 is also fixedly set on the mounting frame 261 on the first slide 251, and the reinforcement support 266 is also connected to the sliding plate 265 on the second slide 252.

[0061] The working process of this embodiment is as follows: before welding, the height of the upper support frame 305 needs to be adjusted by the lifting device 303 to ensure that the axis of the steel pipe fixed by the clamping mechanism and the steel pipe on the feeding trolley placed on both sides of the seam-joining mechanism 3 can be in line, and then the two hydraulic cylinders on the seam-joining mechanism 3 are controlled to extend by the control box. After the hydraulic cylinders are extended, the two semi-ring fasteners 313 will be rotated around the hinge points with the fixed frame 311 as the center, and then the first section of the steel pipe that needs seam welding after the initial shaping is completed is placed between the two semi-ring fasteners 313, and then the two hydraulic cylinders are controlled to shorten by the control cabinet so that the free ends of the two semi-ring fasteners 313 are in contact. At this time, the semi-ring fastener 313 and the bracket 312 will be combined into a ring, and the first section of the steel pipe will be extruded and shaped again.

[0062] After the first section of the steel pipe is squeezed and shaped again by the seam closing mechanism 3, the telescopic beam 223 on the inner welding component 202 will extend into the first section of the steel pipe to weld the longitudinal seam along the axial direction on the inner side of the first section of the steel pipe. After welding is completed, the longitudinal seam of the first section of the steel pipe will not pop open again, completing the preliminary fixation of the longitudinal seam.

[0063] Then the lifting device 303 on the seaming mechanism 3 will push the upper support frame 305 to move upward, and at the same time, the feeding car 12 located on one side of the seaming mechanism 3 will approach the seaming mechanism 3 through the track wheel 122 and the feeding rail 11 under the drive of the walking motor 123. After the feeding car 12 moves to the bottom of the first section of steel pipe after the longitudinal seam is initially fixed, the lifting device 303 on the seaming mechanism 3 will drive the upper support frame 305 to move downward, and at the same time, the hydraulic cylinder on the seaming mechanism 3 will also extend to release the first section of steel pipe after the longitudinal seam is initially fixed, and the adjusting wheel 12 on the feeding car 12 will be used to adjust the feed rate. 24 lifts up the first section of steel pipe and moves it along the feeding rail 11 in the direction away from the seam-joining mechanism 3. After the first section of steel pipe is detached from the seam-joining mechanism 3, the lifting device 303 pushes the upper support frame 305 to reset. Then, the second section of steel pipe that needs to be seam-joined is placed on the seam-joining mechanism 3, and the semi-ring fastener 313 is driven to extrude and shape the second section of steel pipe again by controlling the shortening of the hydraulic cylinder. Then, the longitudinal seam on the inner wall of the second section of steel pipe along the axial direction is welded by the welding mechanism 2 on the inner welding assembly 202, and the longitudinal seam on the second section of steel pipe is initially fixed.

[0064] After the longitudinal seam on the second section of the steel pipe is initially welded and fixed, the hydraulic cylinder is controlled to extend again to separate the two semi-ring fasteners 313. At this time, the feeding trolley 12 located between the inner welding component 202 and the seam-joining mechanism 3 will approach the seam-joining mechanism 3, and then lift the second section of the steel pipe on the seam-joining mechanism 3 under the lifting device 303, and then move along the feeding rail 11 to adjust the position of the steel pipe. At the same time, the first section of the steel pipe will also approach the seam-joining mechanism 3 driven by the feeding trolley 12. When the ends of the first section of the steel pipe and the second section of the steel pipe are both located on the inner side of the seam-joining mechanism 3, the hydraulic cylinder is controlled to shorten again to clamp the first section of the steel pipe and the second section of the steel pipe at the same time. Then the welding mechanism 2 on the inner welding component 202 extends into the steel pipe again to weld the joint between the first section of the steel pipe and the second section of the steel pipe.

[0065] Since the welding is a circular seam, the adjustment motor 125 on the feeding trolley 12 will drive the adjustment wheel 124 to rotate during welding. At the same time, the rotating wheel motor 309 on the seam closing mechanism 3 will also rotate to drive the rotating wheel 307 to rotate through the rotating roller. After the rotating wheel 307 rotates, it will drive the rotating frame 310 to rotate, so that the first section and the second section of the steel pipe start to rotate. During the rotation process, the welding head 215 on the inner welding assembly 202 will complete the welding of the inner side joint of the first section of the steel pipe and the second section of the steel pipe, thereby completing the connection and fixation of the first section of the steel pipe and the second section of the steel pipe.

[0066] Then, the first section of steel pipe and the second section of steel pipe after preliminary connection are transferred to the side of the joint mechanism 3 where the internal welding component 202 is not set by using the feeding car 12, and then the third section of steel pipe that needs to complete the preliminary welding and fixing of the longitudinal seam is installed on the joint mechanism 3. At the same time, the external welding component 201 will be moved to the side of the first and second connected steel pipes after connection to weld the outer longitudinal seams and circumferential seams of the steel pipes.

[0067] In this embodiment, the welder 214, the vacuum cleaner 217 and the welding auxiliary box 218 on the inner welding assembly 202 are all installed on the bottom plate 226, while the welder 214, the vacuum cleaner 217 and the welding auxiliary box 218 on the outer welding assembly 201 are all installed on the platform plate 2012. The welding gun 255 of the welder 214 is fixed on the universal bracket 254. When welding, the first slide 251, the second slide 252 and the third slide 253 on the welding head 215 are all installed perpendicular to each other. The driving motor 262 drives the lead screw 263 to rotate, which can drive the sliding plate 265 to move along the axial direction of the sliding rod 264, so as to achieve fine adjustment of the position of the welding gun 255, so that the welding gun 255 can be aligned with the welding target. The gap is aligned, and the angle of the camera 258 can be adjusted through the universal bracket 254 to observe the welding situation at the joint and control the welding quality. The positions of the clamping plate 256 and the discharge nozzle 257 are adjusted through the universal bracket 254, and the clamping plate 256 can provide welding wire to the welding gun 255 more smoothly to prevent shutdown due to wire breakage, thereby affecting the welding efficiency; the discharge nozzle 257 can sprinkle the flux in the welding auxiliary box 218 on the welding molten pool during welding to ensure the welding quality; at the same time, the suction port of the vacuum cleaner 217 is also fixed on the universal bracket 254, and the excess flux can be recovered through the suction port for reuse, which can reduce production costs.

[0068] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A multifunctional seam welding device for signal tower production, characterized in that: include: A seam joining mechanism (3) is used to butt joint the steel pipe seams that need to be welded; The seam-joining mechanism (3) comprises a lower support frame (301), an upper support frame (305), a rotating frame (310) and a clamping assembly, wherein the lower support frame (301) is fixed on a foundation, the upper support frame (305) is located above the lower support frame (301) and is connected to the lower support frame (301) and the upper support frame (305) via a lifting device (303), the rotating frame (310) is rotatably mounted on the upper support frame (305), and the clamping assembly is fixedly arranged in the rotating frame (310); A feeding mechanism (1), used for supporting and conveying the steel pipe; A welding mechanism (2) for welding the seams aligned by the seaming mechanism (3); The welding mechanism (2) comprises an outer welding component (201) and an inner welding component (202), wherein the outer welding component (201) is arranged on one side of the seaming mechanism (3), and the inner welding component (202) is slidably arranged on one side of the seaming mechanism (3) adjacent to the outer welding component (201), and the moving direction is perpendicular to the moving direction of the feeding mechanism (1); The outer welding assembly (201) and the inner welding assembly (202) both comprise a base plate (226), a column (203), a lifting frame (204), a telescopic beam (223), a welding head (215) and an anti-fall mechanism; the base plate (226) is slidably arranged on a foundation; the column (203) is fixedly arranged on the base plate (226); the lifting frame (204) is slidably mounted on the column (203); the anti-fall mechanism is respectively arranged on the column (203) and the lifting frame (204) and cooperates with each other; the telescopic beam (223) is slidably arranged on the lifting frame (204); the welding head (215) is arranged at one end of the telescopic beam (223); the welding head (215) on the inner welding assembly (202) is located on the inner side of a steel pipe; and the welding head (215) on the outer welding assembly (201) is located on the outer side of a steel pipe; A control cabinet is also fixedly arranged on the bottom plate (226) of the external welding assembly (201), and the control cabinet is electrically connected to the external welding assembly (201), the internal welding assembly (202), the feeding mechanism (1) and the seaming mechanism (3) respectively; The clamping assembly comprises a fixed frame (311), a bracket (312), a semi-ring fastener (313) and a locking cylinder (314). The fixed frame (311) and the semi-ring fastener (313) are both two in number. The two fixed frames (311) are respectively fixedly arranged on the rotating frame (310). The two ends of the bracket (312) are respectively connected to the fixed frames (311). The two semi-ring fasteners (313) are hinged to the two fixed frames (311) in a one-to-one correspondence. The locking cylinder (314) is hinged to one of the semi-ring fasteners (313), and the output end is hinged to the other semi-ring fastener (313). When the free ends of the two semi-ring fasteners (313) are connected, they form a ring with the bracket (312).

2. The multifunctional seam welding device for signal tower production according to claim 1 is characterized in that: A telescopic rack (220) and a telescopic limit strip (216) are fixedly arranged on the telescopic beam (223); a telescopic motor (221), a telescopic limit frame (222), a lifting limit frame (205) and a plurality of support wheels (219) are arranged on the lifting frame (204); the plurality of support wheels (219) are divided into two groups; the lifting frame (204) is connected to the column (203) via a group of support wheels (219); the telescopic beam (223) is connected to the lifting frame (204) via another group of support wheels (219); the output end of the telescopic motor (221) is meshed with the telescopic rack (220) via a gear; the telescopic limit frame (222) is slidably connected to the telescopic limit strip (216).

3. The multifunctional seam welding device for signal tower production according to claim 2 is characterized in that: A fixed seat (209) and a lifting motor (208) are arranged on the top of the column (203); a sprocket (207) is rotatably arranged on the fixed seat (209); a chain (211) is fitted on the sprocket (207); one end of the chain (211) is connected to a counterweight block (210) in the column (203), and the other end is connected to the lifting frame (204); a lifting limit strip (206) is also fixedly arranged on the column (203); and the lifting limit frame (205) is slidably connected to the lifting limit strip (206).

4. The multifunctional seam welding device for signal tower production according to claim 3 is characterized in that: The anti-falling mechanism comprises an anti-falling rack (212) and an anti-falling clamping tooth (213); the anti-falling rack (212) is fixedly arranged on the column (203); the anti-falling clamping tooth (213) is rotatably arranged on the lifting frame (204) on one side of the anti-falling rack (212) via a rotating shaft (225); the chain (211) is connected to the anti-falling clamping tooth (213) on one side of the rotating shaft (225); a spring (224) is arranged on the anti-falling clamping tooth (213) on the other side of the rotating shaft (225); and the spring (224) is also connected to the lifting frame (204).

5. The multifunctional seam welding device for signal tower production according to claim 1 is characterized in that: There are two columns (203) on the external welding assembly (201), the two columns (203) are connected via a stabilizing beam (2013), and the lifting frames (204) on the two columns (203) are opposite to each other, a platform plate (2012) is fixedly arranged on the two telescopic beams (223), a mounting seat (2014) is arranged on the platform plate (2012), and the welding head (215) on the external welding assembly (201) is fixedly connected to the mounting seat (2014).

6. The multifunctional seam welding device for signal tower production according to claim 1 is characterized in that: A translation module (228) is fixedly arranged at the bottom of the base plate (226), a ground rail (227) is arranged below the translation module (228), the ground rail (227) is fixedly arranged on the foundation, the translation module (228) is slidably arranged on the ground rail (227), a moving motor (229) is arranged on one side of the base plate (226), and an output end of the moving motor (229) is connected to the translation module (228).

7. The multifunctional seam welding device for signal tower production according to claim 1 is characterized in that: A plurality of guide tubes (304) are fixedly arranged on the lower support frame (301), and a guide rod (302) is slidably inserted into each of the guide tubes (304). One end of the guide rod (302) is connected to the upper support frame (305). A rotating shaft (306) is rotatably arranged on the upper support frame (305), and a rotating wheel (307) is fixedly arranged on the rotating shaft (306). The rotating frame (310) is installed on the upper support frame (305) through the rotating wheel (307). A rotating wheel motor (309) and a limiting wheel (308) are also fixedly arranged on the upper support frame (305), and the output end of the rotating wheel motor (309) is fixedly connected to one end of the rotating shaft (306), and the limiting wheel (308) is rotatably fitted with the rotating frame (310).

8. The multifunctional seam welding device for signal tower production according to claim 1 is characterized in that: The feeding mechanism (1) comprises a feeding rail (11) and a feeding trolley (12); the feeding rail (11) is fixedly arranged on a foundation; the feeding trolley (12) is arranged on the feeding rail (11); the feeding trolley (12) comprises a frame (121) and a connecting frame (126); the frame (121) is two, the two frames (121) are connected via the connecting frame (126), and each frame (121) is provided with two track wheels (121). 2), two adjusting wheels (124), a walking motor (123) and an adjusting motor (125), the two track wheels (122) are both located at the bottom of the frame (121) and are in contact with the feeding rail (11), the output end of the walking motor (123) is connected to the track wheel (122), the two adjusting wheels (124) are located at the top of the frame (121), and the output end of the adjusting motor (125) is connected to the adjusting wheel (124).

9. The multifunctional seam welding device for signal tower production according to claim 1 is characterized in that: The welding machine head (215) comprises a first slide (251), a second slide (252), a third slide (253) and a universal bracket (254); the first slide (251), the second slide (252) and the third slide (253) all comprise a mounting frame (261), a sliding plate (265), a sliding rod (264), a lead screw (263) and a driving motor (262); the sliding rod (264) and the lead screw (263) are both arranged on the inner side of the mounting frame (261); the sliding plate (265) is slidably arranged on the mounting frame (261) through the sliding rod (264) and is connected to the lead screw (263); the driving motor (262) is fixedly arranged on the mounting frame (261) and an output end is connected to the lead screw (263); the sliding plate (265) on the first slide (251) ) is fixedly connected to the telescopic beam (223), the sliding plate (265) on the second slide (252) is connected to the mounting frame (261) on the first slide (251), the sliding plate (265) on the third slide (253) is connected to the mounting frame (261) on the second slide (252), the universal bracket (254) is fixedly arranged on the mounting frame (261) of the third slide (253), the welding gun (255), the clamping plate (256), the discharge nozzle (257) and the camera (258) are fixedly arranged on the universal bracket (254), and a reinforcement support (266) is also fixedly arranged on the mounting frame (261) on the first slide (251), and the reinforcement support (266) is also connected to the sliding plate (265) on the second slide (252).

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