Automatic welding device for vertical storage tank

Abstract

The invention relates to the field of tank body welding, and discloses an automatic welding device for a vertical storage tank, which comprises a displacement linkage mechanism positioned on a side suspension rack, a parallel shaft bracket structure matched with the side suspension rack, a driving gear piece and a bottom carriage for driving tank piece extraction and displacement of a welding structure; the material taking synchronizing mechanism is located on the displacement linkage mechanism and matched with the traction rod structure of the center sleeve shaft, the driving screw, the column shaft rod and the abutting disc to be used for extracting and conveying tank piece raw materials needed by the storage tank. By means of the modular layout of the main fixing rack and the side suspension rack, assembly line work of can piece input, positioning, splicing and welding is achieved. And compared with traditional step-by-step operation, the efficiency is improved, the height of the arc-shaped storage sliding table driven by the elastic zigzag rod can be automatically adjusted according to the extraction number of the can pieces, it is ensured that the top can pieces are located at the material taking position all the time, manual intervention is reduced, and continuous feeding is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of tank body welding, and specifically to an automatic welding device for vertical storage tanks. Background Art

[0002] With the continuous development of China's economy, the chemical industry is booming. The production and sales volume of chemical products are increasing year by year. Correspondingly, a number of new storage and transportation facilities are also needed year by year. Among them, corrosive media such as acids and alkalis need to be stored and transported in stainless steel storage tanks with strong corrosion resistance. Storage tanks usually need to withstand a certain pressure. There are mainly two ways to prepare the tank body. One is the one-piece extrusion molding method, and the other is the method of curling and welding plates.

[0003] For the splicing of tank pieces, multiple people need to cooperate to adjust the position, and the roundness is guaranteed by experience. The assembly speed is slow. Manual operations are required for handling, positioning, and welding, which is prone to fatigue and leads to quality fluctuations. Manual assembly is prone to misalignment of tank pieces, resulting in uneven welding penetration, incomplete penetration, or burn-through. It is necessary to first roll into a circle → assemble → tack weld → weld, and each link is carried out independently. Manual welding or ordinary automatic welding needs to start and stop multiple times. The rolling die and assembly tooling need to be customized, and it takes half a day to several days to switch specifications. The traditional process is suitable for large quantities, and the cost per single tank in small and medium-sized orders surges. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides an automatic welding device for vertical storage tanks, which solves the problems of the traditional tank piece welding process relying on manual operation, slow speed, easy quality fluctuations, and high cost in batch orders.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: An automatic welding device for vertical storage tanks, comprising:

[0006] A main fixed frame for fixing the structure of the automatic welding device for vertical storage tanks;

[0007] A side suspension frame is located on the main fixed frame and is used for installing the displacement drive structure of the welding element;

[0008] A suspended die cylinder is located on the main fixed frame and serves as a tank piece splicing die during the welding of the storage tank;

[0009] A tank piece input mechanism is located on the side suspension frame and is used for inputting the tank piece raw materials required during the welding of the storage tank;

[0010] A displacement linkage mechanism is located on the side suspension frame and, in cooperation with the parallel shaft frame structure, drive gear parts, and bottom-mounted sliding frame of the side suspension frame, is used to drive the displacement of the tank piece extraction and welding structure;

[0011] The material taking synchronization mechanism is located on the displacement linkage mechanism, and cooperates with the traction rod structure of the central sleeve shaft, the driving screw, the arranged shaft rod and the contact plate to extract and transport the can sheet raw materials required by the storage tank;

[0012] The cross welding mechanism is located on the material taking synchronization mechanism, and cooperates with the linkage sleeve seat 2 to synchronously weld the tank sheet materials after splicing;

[0013] The clamping and contacting mechanism is located on the suspended die cylinder and cooperates with the arranged shaft rods to synchronously clamp the spliced can sheet raw materials.

[0014] Preferably, the side suspension frame is fixedly connected to one side of the main fixed frame, and the parallel axis frame structure of the side suspension frame is fixed on the side suspension frame, the driving gear member of the side suspension frame is arranged on the side suspension frame, the suspension mold barrel is suspended and fixed on the top of the main fixed frame, the can sheet input mechanism is arranged on the side of the main fixed frame away from the side suspension frame and is located on the side of the suspension mold barrel input port, the displacement linkage mechanism is arranged on the parallel axis frame structure of the side suspension frame, and extends through the interior of the suspension mold barrel to above the can sheet input mechanism, the material picking synchronization mechanism is sleeved and movable on the displacement linkage mechanism, the cross welding mechanism is sleeved and arranged on the material picking synchronization mechanism, and the clamping top contact mechanism is embedded in the suspension mold barrel.

[0015] Preferably, the can sheet input mechanism includes a bottom slide and an arc-shaped storage slide, the bottom slide is fixedly mounted on a side of the main fixed frame away from the side suspension frame, the arc-shaped storage slide is slidably embedded in the bottom slide, and an elastic bending rod is connected between the bottom of the arc-shaped storage slide and the bottom wall of the bottom slide.

[0016] Preferably, the displacement linkage mechanism includes a center sleeve and an external sleeve, the center sleeve fixedly embedded in the side of the parallel shaft frame structure of the side suspension frame away from the suspension mold barrel, the external sleeve is sleeved on the center sleeve and rotatably embedded in the side of the parallel shaft frame structure of the side suspension frame close to the suspension mold barrel, the driving screw is rotatably embedded in the interior of the center sleeve, the traction rod structure of the center sleeve is fixed at one end of the center sleeve close to the suspension mold barrel, the array shafts are fixed in a rectangular distribution on the side of the external sleeve close to the suspension mold barrel, the driving screw, the traction rod structure of the center sleeve and the array shafts pass through the interior of the suspension mold barrel and extend to the outside of the bottom slide, the contact plate is fixedly connected to one end of the array shafts away from the external sleeve, and an arc-shaped cone structure is provided on the side of the contact plate facing the array shafts.

[0017] Preferably, the material taking synchronization mechanism includes a linkage sleeve seat 1, a linkage sleeve seat 2 and a nut auxiliary wheel. The linkage sleeve seat 1 and the linkage sleeve seat 2 are embedded in parallel between the arranged shaft rods and slide along the arranged shaft rods. The linkage sleeve seat 1 is closer to the can sheet input mechanism than the linkage sleeve seat 2. The nut auxiliary wheel is rotatably embedded in the linkage sleeve seat 1, and the inner threaded end is spirally sleeved on the outer threaded surface of the driving screw, and the nut auxiliary wheel is sleeved and slid on the traction rod structure of the central sleeve shaft. A retaining spring structure is fixedly connected between the linkage sleeve seat 1 and the linkage sleeve seat 2. The top of the linkage sleeve seat 1 is rotatably connected to a side of the contact disk close to the contact disk. Rod, the contact bent rod is composed of a short-distance rod and a long-distance rod structure, the short-distance rod of the contact bent rod is close to the contact plate, and the long-distance rod structure is provided with a slide groove, a traction and drag rod is fixedly installed on the top of the linkage sleeve seat two, and the end of the traction and drag rod away from the linkage sleeve seat two is embedded and slid in the slide groove of the long-distance rod structure of the contact bent rod, a straight rail structure is arranged at the bottom of the linkage sleeve seat one, and a traction slide bar is slidably installed through the straight rail structure, a suction cup structure distributed along an arc is arranged at the bottom of the traction slide bar, a linkage push rod is rotatably connected to the bottom of the linkage sleeve seat two, and the end of the linkage push rod away from the linkage sleeve seat two is rotatably connected to the traction slide bar.

[0018] Preferably, the cross welding mechanism includes an arc-shaped sleeve, the inner side of which is provided with a rectangularly distributed slot structure, and is slid on the arranged shaft rod through the slot structure. The arc-shaped sleeve is sleeved and fixed on the linkage sleeve seat 2, and a relative extension arm is provided at the bottom of the arc-shaped sleeve.

[0019] Preferably, the clamping and contacting mechanism includes an embedded disk, a rectangularly distributed fitting groove is provided at the center of the embedded disk, and the embedded disk is sleeved on the arranged shaft rod through the fitting groove. The embedded disk is embedded in the interior of the suspension mold cylinder and away from the input port of the suspension mold cylinder. The side wall of the embedded disk is provided with upper and lower opposite clamping members, and the clamping member includes a hydraulic drive member outputting to the outside and an arc plate structure fixed at the telescopic end.

[0020] Preferably, the outer wall of the external sleeve shaft is provided with a gear ring structure meshing with the side suspension frame driving gear structure.

[0021] Preferably, a driving motor element is provided on the central sleeve shaft, and is connected to one end of the driving screw rod through a flat key transmission at the output shaft end of the driving motor element.

[0022] Preferably, a laser welding head element is provided at the outer end of the extension arm.

[0023] The present invention provides an automatic welding device for a vertical storage tank, which has the following beneficial effects:

[0024] 1. The present invention features modular collaborative design to achieve efficient continuous operation: Through the modular layout of the main fixed frame and the side suspended frame, a pipeline operation for can piece input, positioning, splicing, and welding is realized. The coordinated actions of the material taking synchronization mechanism and the displacement linkage mechanism enable seamless connection of processes such as can piece transfer, rotational positioning, and welding. The efficiency is improved compared to traditional step-by-step operations. The arc-shaped storage slide driven by an elastic flexure rod can automatically adjust its height according to the number of can pieces extracted, ensuring that the top can piece is always at the material taking position, reducing manual intervention and achieving continuous feeding.

[0025] 2. The present invention features high-precision positioning and splicing technology: The traction rod and the drive screw of the central sleeve shaft constitute a dual guidance to ensure the lateral displacement accuracy of the material taking synchronization mechanism; the external sleeve shaft drives the columnar shaft to rotate through a gear-ring transmission, and the hydraulic pressure plate of the clamping and pressing mechanism cooperates with the embedded disc to apply dynamic pressure to the head and tail can pieces, eliminating the splicing gap; the suspended die cylinder serves as a forming die to ensure the roundness of the cylinder body.

[0026] 3. The present invention features intelligent linkage control to reduce the operation complexity: Designs such as the inclined plane trigger mechanism of the contact disc and the contact flexure rod, and the automatic rebound of the snap spring structure realize the full-automatic process of material taking - releasing - positioning. The operator only needs to monitor the equipment operation. The buffer characteristics of the elastic flexure rod can cope with the fluctuations in the stacking height of can pieces and avoid mechanical jamming; the redundant stroke of the linkage socket allows self-correction of small positioning deviations.

[0027] 4. The present invention features equipment compactness and scalability: The cantilever design of the side suspended frame and the main frame body saves floor space and is suitable for narrow workshop environments; the vertical stacking feeding of the arc-shaped storage slide reduces the lateral floor area. By changing the size of the suspended die cylinder and adjusting the stroke of the drive screw, it can be adapted to the manufacturing of storage tanks with different diameters, with strong scalability. Through mechanical linkage design, complex processes are simplified into automated processes, reaching the leading level in the industry in terms of positioning accuracy, welding quality, energy efficiency ratio, etc. It is especially suitable for the efficient production of small and medium batches and multi-specification storage tanks, providing a standardized manufacturing solution for fields such as pressure vessels and chemical storage and transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a three-dimensional schematic diagram of the main structure of the present invention Figure 1 ;

[0029] Figure 2 is a three-dimensional schematic diagram of the main structure of the present invention Figure 2 ;

[0030] Figure 3 is a three-dimensional schematic diagram of the main structure of the present invention Figure 3 ;

[0031] Figure 4 is a three-dimensional schematic diagram of the main structure of the present invention Figure 4 ;

[0032] Figure 5 Schematic diagram of the main fixed frame structure combination of the present invention;

[0033] Figure 6 Schematic diagram of the installation state of the displacement linkage mechanism of the present invention;

[0034] Figure 7 Schematic diagram of the installation of the can piece input mechanism structure of the present invention;

[0035] Figure 8 Schematic diagram of the displacement linkage mechanism structure of the present invention;

[0036] Figure 9 Schematic diagram of the contact disk structure combination of the present invention;

[0037] Figure 10 Schematic diagram of the combined installation of the material taking synchronization mechanism and the cross welding mechanism of the present invention;

[0038] Figure 11 Schematic diagram of the combination of the material taking synchronization mechanism and the cross welding mechanism of the present invention;

[0039] Figure 12 Schematic diagram of the cross welding mechanism structure of the present invention;

[0040] Figure 13 Schematic diagram of the clamping and pressing mechanism structure of the present invention.

[0041] Among them, 1, main fixed frame; 2, side suspension frame; 3, suspended die cylinder; 4, can piece input mechanism; 5, displacement linkage mechanism; 6, material taking synchronization mechanism; 7, cross welding mechanism; 8, clamping and pressing mechanism; 41, bottom sliding frame; 42, arc-shaped storage sliding table; 43, elastic zigzag rod; 51, central sleeve shaft; 52, external sleeve shaft; 53, driving screw; 54, arranged shaft rod; 55, contact disk; 61, linkage sleeve seat one; 62, linkage sleeve seat two; 63, nut pair wheel; 64, contact curved rod; 65, traction drag rod; 66, traction sliding rod; 67, linkage push rod; 71, arc-shaped sleeve frame; 72, extension arm; 81, embedded disk; 82, pressing member. Detailed implementation manners

[0042] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0043] Please refer to the attached Figure 1 - attachedFigure 4 , an embodiment of the present invention provides an automatic welding device for a vertical storage tank, comprising: a main fixed frame 1 for fixing the structure of the automatic welding device for the vertical storage tank, a side suspension frame 2 located on the main fixed frame 1 for installing a welding element displacement driving structure, a suspended die cylinder 3 located on the main fixed frame 1 as a die for splicing tank sheets during the welding of the storage tank, the side suspension frame 2 is fixedly connected to one side of the main fixed frame 1, and the parallel shaft frame structure of the side suspension frame 2 is fixed on the side suspension frame 2, the driving gear member of the side suspension frame 2 is arranged on the side suspension frame 2, the suspended die cylinder 3 is suspended and fixed on the top of the main fixed frame 1, a sheet input mechanism 4 is arranged on the side of the main fixed frame 1 away from the side suspension frame 2 and on one side of the input port of the suspended die cylinder 3, a displacement linkage mechanism 5 is arranged on the parallel shaft frame structure of the side suspension frame 2 and extends through the inside of the suspended die cylinder 3 to above the sheet input mechanism 4, a material taking synchronization mechanism 6 is sleeved and movably arranged on the displacement linkage mechanism 5, a cross welding mechanism 7 is sleeved and arranged on the material taking synchronization mechanism 6, and a clamping and pressing mechanism 8 is embedded in the suspended die cylinder 3. First, this device is mainly used for welding the cylindrical tank body of medium and small vertical storage tanks. It mainly inputs the sheet raw materials that make up the tank body in sequence, then splices them into the tank body, and at the same time, laser welding treatment is carried out on the spliced parts. The overall device structure is fixedly installed through the main fixed frame 1, and the side suspension frame 2 added to the side of the main fixed frame 1 installs a displacement linkage mechanism 5 that can drive displacement and rotation through its own parallel shaft frame structure. The suspended die cylinder 3, which is mainly responsible for carrying the sheet raw materials and serving as a die for splicing the tank body, is erected on the top of the main fixed frame 1, and the sheet raw materials are stacked in the sheet input mechanism 4. The sheet input mechanism 4 is erected and fixed at the displacement of the input port of the suspended die cylinder 3. At the same time, by starting the displacement linkage mechanism 5, the material taking synchronization mechanism 6 is driven to displace, and the sheet raw materials pre-loaded in the sheet input mechanism 4 are sequentially transferred into the suspended die cylinder 3. Then, the clamping and pressing mechanism 8 installed inside the suspended die cylinder 3 is used to fix the first and last sheet raw materials sent in. Subsequently, the cross welding mechanism 7 is driven by the material taking synchronization mechanism 6 to laser weld and fix the splicing joints of adjacent sheets.

[0044] Please refer to the attached Figure 1 - attached Figure 7The tank sheet input mechanism 4 is located on the side hanging frame 2 and is used to input the tank sheet raw materials required for tank welding. The tank sheet input mechanism 4 includes a bottom slide 41 and an arc-shaped object slide 42. The bottom slide 41 is fixedly installed on the side of the main fixed frame 1 away from the side hanging frame 2. The arc-shaped object slide 42 is slidably embedded in the bottom slide 41. An elastic bending rod 43 is connected between the bottom of the arc-shaped object slide 42 and the bottom wall of the bottom slide 41. The bottom slide 41 included in the tank sheet input mechanism 4 is fixed on one side of the main fixed frame 1 and is located at the input port of the suspension mold cylinder 3. The tank body spliced tank The stacked can sheet materials are stacked on an arc-shaped storage slide 42 which slides in the bottom slide 41. A large amount of stacked materials drives the arc-shaped storage slide 42 to descend along the bottom slide 41 and compresses the elastic bending rod 43 installed at the bottom of the bottom slide 41. After the uppermost can sheet is separated from the can sheets stacked on the arc-shaped storage slide 42, the compression elastic force of the elastic bending rod 43 drives the arc-shaped storage slide 42 to rise along the bottom slide 41 and push new can sheet materials to the top, and so on, so that all the stacked can sheet materials can be driven to the contact height of the traction slide 66 when the upper raw materials are extracted.

[0045] Please refer to the attached Figure 1 -Attached Figure 9, the displacement linkage mechanism 5 is located on the side suspension frame 2 and, in cooperation with the parallel shaft frame structure, the driving gear member and the bottom-mounted carriage 41 of the side suspension frame 2, is used to drive the displacement of the can sheet extraction and welding structure. The displacement linkage mechanism 5 includes a central sleeve shaft 51 and an external sleeve shaft 52. The central sleeve shaft 51 is fixedly embedded on the side of the parallel shaft frame structure of the side suspension frame 2 away from the suspension die barrel 3, and the external sleeve shaft 52 is sleeved on the central sleeve shaft 51 and rotatably embedded on the side of the parallel shaft frame structure of the side suspension frame 2 close to the suspension die barrel 3. The driving screw 53 is rotatably embedded inside the central sleeve shaft 51. The traction rod structure of the central sleeve shaft 51 is fixedly provided at one end of the central sleeve shaft 51 close to the suspension die barrel 3. The arranged shaft rods 54 are fixedly distributed on the side of the external sleeve shaft 52 close to the suspension die barrel 3 in a rectangular distribution. The driving screw 53, the traction rod structure of the central sleeve shaft 51, and the arranged shaft rods 54 pass through the inside of the suspension die barrel 3 and extend to the outside of the bottom-mounted carriage 41. The contact disk 55 is fixedly connected to the end of the arranged shaft rod 54 away from the external sleeve shaft 52. An arc cone structure is provided on the side of the contact disk 55 facing the arranged shaft rod 54. A toothed ring structure meshing with the driving gear structure of the side suspension frame 2 is provided on the outer wall of the external sleeve shaft 52. A driving motor element is provided on the central sleeve shaft 51 and is connected to one end of the driving screw 53 through flat key transmission at the output shaft end of the driving motor element. The central sleeve shaft 51 and the externally sleeved external sleeve shaft 52 included in the displacement linkage mechanism 5 are installed on the parallel shaft frame structure of the side suspension frame 2. The external sleeve shaft 52 rotates relative to the central sleeve shaft 51 at the same time. The driving screw 53 rotatably embedded inside the central sleeve shaft 51 and the traction rod structure installed on the side wall of the central sleeve shaft 51 pass through the suspension die barrel 3 and extend to the bottom-mounted carriage 41. The rotation of the driving screw 53 and the guidance of the traction rod of the central sleeve shaft 51 can drive the material taking synchronization mechanism 6 installed on the displacement linkage mechanism 5 to displace horizontally. The arranged shaft rods 54 installed on the external sleeve shaft 52 in a rectangular distribution also pass through the suspension die barrel 3 and extend to the bottom-mounted carriage 41. The driving gear member of the side suspension frame 2 drives the toothed ring structure of the external sleeve shaft 52 to rotate, and at the same time drives the material taking synchronization mechanism 6 sleeved on the arranged shaft rod 54 to rotate in the suspension die barrel 3 while carrying the can sheet raw material. When the material taking synchronization mechanism 6 displaces to the end, the contact disk 55 installed at the end of the arranged shaft rod 54 will contact the material taking synchronization mechanism 6 and drive the material taking synchronization mechanism 6 to expand and adsorb and extract the can sheet raw material.

[0046] Please refer to the appendix Figure 1 - appendix Figure 11, the material taking synchronization mechanism 6 is located on the displacement linkage mechanism 5, and cooperates with the traction rod structure of the central sleeve shaft 51, the driving screw 53, the arranged shaft rod 54 and the contact disc 55 to extract and convey the can piece raw materials required by the storage tank. The material taking synchronization mechanism 6 includes a linkage sleeve seat one 61, a linkage sleeve seat two 62 and a nut pair wheel 63. The linkage sleeve seat one 61 and the linkage sleeve seat two 62 are juxtaposed and embedded between the arranged shaft rods 54 and slide along the arranged shaft rods 54. The linkage sleeve seat one 61 is closer to the can piece input mechanism 4 than the linkage sleeve seat two 62. The nut pair wheel 63 is rotationally embedded inside the linkage sleeve seat one 61, and the inner threaded end is spirally sleeved on the outer threaded surface of the driving screw 53, and the nut pair wheel 63 is sleeved and slides on the traction rod structure of the central sleeve shaft 51. A snap ring structure is fixedly connected between the linkage sleeve seat one 61 and the linkage sleeve seat two 62. One side of the top of the linkage sleeve seat one 61 close to the contact disc 55 is rotatably connected with a contact curved rod 64. The contact curved rod 64 is composed of a short-distance rod and a long-distance rod structure. The short-distance rod of the contact curved rod 64 is close to the contact disc 55, and the long-distance rod structure is provided with a chute. A traction drag rod 65 is fixedly installed on the top of the linkage sleeve seat two 62. One end of the traction drag rod 65 away from the linkage sleeve seat two 62 is embedded and slides in the chute of the long-distance rod structure of the contact curved rod 64. A straight track structure is arranged at the bottom of the linkage sleeve seat one 61, and a traction slide rod 66 is slidably installed through the straight track structure. The bottom end of the traction slide rod 66 is provided with a suction cup structure distributed in an arc. A linkage push rod 67 is rotatably connected to the bottom of the linkage sleeve seat two 62. One end of the linkage push rod 67 away from the linkage sleeve seat two 62 is rotatably connected to the traction slide rod 66. The linkage sleeve seat one 61 and the linkage sleeve seat two 62 included in the material taking synchronization mechanism 6 are displaceably installed on the arranged shaft rods 54 in a juxtaposed form. The nut pair wheel 63 rotationally embedded in the linkage sleeve seat one 61 will be thread-fitted along the outer surface of the driving screw 53. The snap ring structure installed between the linkage sleeve seat one 61 and the linkage sleeve seat two 62 will drive the linkage sleeve seat two 62 to approach the linkage sleeve seat one 61 and will retreat by using the elastic force at the same time. The traction rod structure of the central sleeve shaft 51 passes through the nut pair wheel 63, so that the nut pair wheel 63 itself cannot rotate on the driving screw 53. When the driving screw 53 rotates, it will drive the nut pair wheel 63 to drive the linkage sleeve seat one 61 and the linkage sleeve seat two 62 to displace along the arranged shaft rods 54 and reach above the arc-shaped object placing slide table 42 along the output port of the suspension die barrel 3. The contact curved rod 64 installed on the top of the linkage sleeve seat one 61 will touch the arc-shaped cone structure of the contact disc 55. When the short-distance rod structure of the contact curved rod 64 contacts the arc-shaped cone structure, it will displace along the arc-shaped inclined plane by itself and drive the long-distance rod structure of the contact curved rod 64 to rotate along the linkage sleeve seat one 61. The long-distance rod structure of the contact curved rod 64 drives the traction slide rod 66 installed on the top of the linkage sleeve seat two 62 to displace through its own chute, driving the linkage sleeve seat two 62 to approach the linkage sleeve seat one 61 along the arranged shaft rods 54. The linkage push rod 67 installed at the bottom of the linkage sleeve seat two 62 will due to the approach of the linkage sleeve seat two 62,Push the traction slide bar 66 that slides along the in-line rail structure at the bottom of the first linkage socket 61 downward, and drive the suction cup structure distributed in an arc at the bottom of the traction slide bar 66 to contact and adsorb the uppermost can piece structure. Then, drive the first linkage socket 61 to retract by driving the screw rod 53. After the short-distance rod structure of the contact lever 64 disengages from the contact disk 55, the second linkage socket 62 retracts and moves away from the first linkage socket 61 under the action of the snap spring structure. At the same time, the traction slide bar 66 also drives the adsorbed can piece raw material to rise under the traction of the linkage push rod 67, and is guided by the first linkage socket 61 into the suspension die cylinder 3 until the second linkage socket 62 displaces and touches the side wall of the embedded disk 81 included in the clamping and touching mechanism 8. At this time, the second linkage socket 62 begins to approach the first linkage socket 61, and drives the traction slide bar 66 to push the can piece towards the side wall of the suspension die cylinder 3 until the can piece adheres to the inside of the suspension die cylinder 3. When extracting the upper raw materials, all stacked can piece raw materials can be pushed to the contact height of the traction slide bar 66, and are sequentially adsorbed by the traction slide bar 66 and sent into the suspension die cylinder 3. At the same time, drive the external sleeve shaft 52 and the arranged shaft rod 54 to drive the first linkage socket 61 and the second linkage socket 62 to rotate inside the suspension die cylinder 3, so that the can piece raw materials are spliced along the inner wall of the suspension die cylinder 3 into the cylindrical shape required for the storage tank. Then, use the driving screw rod 53 to drive the first linkage socket 61 and the second linkage socket 62 to displace, and at the same time drive the cross-welding mechanism 7 installed on the second linkage socket 62 to displace.,

[0047] Please refer to the appendix Figure 1 - appendix Figure 12 , the cross-welding mechanism 7 is located on the material-taking synchronization mechanism 6 and is used to synchronously weld the spliced can piece raw materials in cooperation with the second linkage socket 62. The cross-welding mechanism 7 includes an arc-shaped sleeve 71. The inner side of the arc-shaped sleeve 71 is provided with a rectangularly distributed slot structure and is slidably engaged on the arranged shaft rod 54 through the slot structure. The arc-shaped sleeve 71 is sleeved and fixed on the second linkage socket 62. The bottom of the arc-shaped sleeve 71 is provided with opposite extension arms 72. The outer ends of the extension arms 72 are provided with laser welding head elements. Drive the cross-welding mechanism 7 installed on the second linkage socket 62 to displace. The arc-shaped sleeve 71 included in the cross-welding mechanism 7 wraps around the periphery of the arranged shaft rod 54 with its own fitting groove structure, so that while the arc-shaped sleeve 71 can be driven to rotate by the arranged shaft rod 54, it can also be displaced by the traction of the second linkage socket 62, driving the extension arms 72 and the laser welding head structure provided at the ends of the extension arms 72 at the bottom of the arc-shaped sleeve 71 to displace along the splicing joint of adjacent can pieces and weld the splicing joint at the same time, so that adjacent can pieces are fixed to each other. Then, drive the arc-shaped sleeve 71 and the extension arms 72 to rotate through the arranged shaft rod 54, so as to cover all the intersections of adjacent can pieces, drive the spliced cylindrical can pieces to be welded and fixed to each other, and finally form a shape.

[0048] Please refer to the appendix Figure 1 - appendix Figure 13, the clamping and pressing mechanism 8 is located on the suspension die barrel 3 and is used in cooperation with the arranged shaft rod 54 to synchronously clamp the spliced can piece raw materials. The clamping and pressing mechanism 8 includes an embedded disc 81. A rectangularly distributed fitting groove is provided at the center of the embedded disc 81, and it is sleeved on the arranged shaft rod 54 through the fitting groove. The embedded disc 81 is embedded inside the suspension die barrel 3 and is away from the input port of the suspension die barrel 3. Pressing members 82 are provided on the side wall of the embedded disc 81 and are opposite to each other up and down. The pressing member 82 includes a hydraulic driving member that outputs outward and an arc plate structure with a fixed telescopic end. The second linkage socket 62 starts to move closer to the first linkage socket 61, and drives the traction slide rod 66 to push the can piece towards the side wall of the suspension die barrel 3 until the can piece is attached and contacts the inside of the suspension die barrel 3. At this time, the pressing member 82 installed on the embedded disc 81 will compact and stabilize the first can piece in the suspension die barrel 3 through the hydraulic driving member and the pressing plate structure.

[0049] Working principle: Firstly, this device is mainly used for welding the cylindrical tank body of medium and small vertical storage tanks. It mainly works by sequentially inputting the sheet raw materials that make up the tank body, then splicing them into a tank body, and at the same time, laser welding treatment is carried out on the spliced parts. The overall device structure is fixedly installed through the main fixed frame 1. The side suspension frame 2 installed on the side of the main fixed frame 1 is equipped with a displacement linkage mechanism 5 that can be driven to displace and rotate through its parallel shaft frame structure. The suspension mold cylinder 3, which is mainly responsible for carrying the sheet raw materials and serving as a splicing mold for the tank body, is erected on the top of the main fixed frame 1. The sheet raw materials are stacked on the sheet input mechanism 4, and the sheet input mechanism 4 is erected and fixed at the input port displacement of the suspension mold cylinder 3. At the same time, by activating the displacement linkage mechanism 5, the material taking synchronization mechanism 6 is driven to displace, and the sheet raw materials pre-loaded in the sheet input mechanism 4 are sequentially transferred into the suspension mold cylinder 3. Then, the clamping and pressing mechanism 8 installed inside the suspension mold cylinder 3 is used to fix the first and last sheet raw materials sent in. Subsequently, the cross welding mechanism 7 is driven by the material taking synchronization mechanism 6 to laser weld and fix the splicing parts of adjacent sheets. Firstly, the bottom sliding frame 41 included in the sheet input mechanism 4 is fixed on one side of the main fixed frame 1 and is located at the input port of the suspension mold cylinder 3. The sheet raw materials for splicing the tank body are stacked on the arc-shaped storage sliding table 42 that slides inside the bottom sliding frame 41. The large amount of stacked raw materials drives the arc-shaped storage sliding table 42 to descend along the bottom sliding frame 41 and compress the elastic zigzag rod 43 installed at the bottom of the bottom sliding frame 41. The central sleeve shaft 51 and the externally sleeved outer sleeve shaft 52 included in the displacement linkage mechanism 5 are installed on the parallel shaft frame structure of the side suspension frame 2. The outer sleeve shaft 52 rotates relative to the central sleeve shaft 51 at the same time. The driving screw rod 53 rotatably embedded inside the central sleeve shaft 51 and the traction rod structure installed on the side wall of the central sleeve shaft 51 pass through the suspension mold cylinder 3 and extend to the bottom sliding frame 41. The rotation of the driving screw rod 53 and the guidance of the traction rod of the central sleeve shaft 51 can drive the material taking synchronization mechanism 6 installed on the displacement linkage mechanism 5 to displace horizontally. The columnar shaft rods 54 installed in a rectangular distribution form on the outer sleeve shaft 52 also pass through the suspension mold cylinder 3 and extend to the bottom sliding frame 41. The driving gear part of the side suspension frame 2 drives the toothed ring structure of the outer sleeve shaft 52 to rotate, and at the same time drives the material taking synchronization mechanism 6 sleeved on the columnar shaft rod 54 to rotate inside the suspension mold cylinder 3 while carrying the sheet raw materials. The contact disc 55 installed at the end of the columnar shaft rod 54 will contact the material taking synchronization mechanism 6 when the material taking synchronization mechanism 6 displaces to the end, and drive the material taking synchronization mechanism 6 to expand and adsorb and extract the sheet raw materials. The material taking synchronization mechanism 6 includes a linkage socket one 61 and a linkage socket two 62 that are displaced and installed on the columnar shaft rod 54 in a parallel form. The nut sub-wheel 63 rotatably embedded inside the linkage socket one 61 will thread-fit along the outer surface of the driving screw rod 53. The snap spring structure installed between the linkage socket one 61 and the linkage socket two 62 will drive the linkage socket two 62 to approach the linkage socket one 61 and at the same time retreat using elastic force.The traction rod structure of the central sleeve shaft 51 passes through the nut pair wheel 63, making it impossible for the nut pair wheel 63 to rotate on the driving screw rod 53 itself. When the driving screw rod 53 rotates, it will drive the nut pair wheel 63 to drive the linkage sleeve seat one 61 and the linkage sleeve seat two 62 to displace along the columnar shaft rod 54 and reach above the arc-shaped object placing slide 42 along the output port of the suspension die barrel 3. The contact curved rod 64 installed on the top of the linkage sleeve seat one 61 will touch the arc-shaped cone structure of the contact disc 55. When the short-distance rod structure of the contact curved rod 64 contacts the arc-shaped cone structure, it will displace along the arc-shaped inclined plane itself and drive the long-distance rod structure of the contact curved rod 64 to rotate along the linkage sleeve seat one 61. The long-distance rod structure of the contact curved rod 64 drives the traction slide rod 66 installed on the top of the linkage sleeve seat two 62 to displace through its own chute, driving the linkage sleeve seat two 62 to approach the linkage sleeve seat one 61 along the columnar shaft rod 54. The linkage push rod 67 installed at the bottom of the linkage sleeve seat two 62 will, due to the approach of the linkage sleeve seat two 62, push the traction slide rod 66 sliding along the straight rail structure at the bottom of the linkage sleeve seat one 61 to displace downward, and drive the suction cup structure distributed in an arc at the bottom of the traction slide rod 66 to contact and adsorb the uppermost can piece structure. Then, by driving the screw rod 53 to drive the linkage sleeve seat one 61 to retract, after the short-distance rod structure of the contact curved rod 64 disengages from the contact disc 55, the linkage sleeve seat two 62 retracts and moves away from the linkage sleeve seat one 61 under the action of the snap spring structure, and the traction slide rod 66 also simultaneously drives the adsorbed can piece raw material to rise under the traction of the linkage push rod 67 and is guided into the suspension die barrel 3 by the linkage sleeve seat one 61 until the linkage sleeve seat two 62 displaces and touches the side wall of the embedded disc 81 included in the clamping and contact mechanism 8. At this time, the linkage sleeve seat two 62 begins to approach the linkage sleeve seat one 61 and drives the traction slide rod 66 to push the can piece towards the side wall of the suspension die barrel 3 until the can piece adheres to the inside of the suspension die barrel 3. At this time, the pressing member 82 installed on the embedded disc 81 will press and stabilize the first can piece in the suspension die barrel 3 through the hydraulic driving member and the pressing plate structure. After the uppermost can piece separates from the can pieces stacked on the arc-shaped object placing slide 42, the compression elastic force of the elastic curved rod 43 drives the arc-shaped object placing slide 42 to rise along the bottom slide frame 41 and pushes the new can piece raw material to the upper part. By analogy, when extracting the upper raw materials, all stacked can piece raw materials can be pushed to the contact height of the traction slide rod 66 and then adsorbed and sent into the suspension die barrel 3 in sequence by the traction slide rod 66. At the same time, the external sleeve shaft 52 and the columnar shaft rod 54 are driven to drive the linkage sleeve seat one 61 and the linkage sleeve seat two 62 to rotate inside the suspension die barrel 3, so that the can piece raw materials are spliced into the cylindrical shape required for the storage tank along the inner wall of the suspension die barrel 3. By using the driving screw rod 53 to drive the linkage sleeve seat one 61 and the linkage sleeve seat two 62 to displace, the cross-welding mechanism 7 installed on the linkage sleeve seat two 62 is also driven to displace. The arc-shaped sleeve 71 included in the cross-welding mechanism 7 wraps around the periphery of the columnar shaft rod 54 by using its own fitting groove structure, so that while the arc-shaped sleeve 71 can be driven to rotate by the columnar shaft rod 54,It is also possible to drive the displacement of the bottom of the arc-shaped sleeve 71 relative to the added extension arm 72 and the laser welding head structure provided at the end of the extension arm 72 along the splicing joint of adjacent tank pieces through the traction displacement of the linkage socket two 62, and weld the splicing joint at the same time, so that adjacent tank pieces are fixed to each other. Then, drive the arc-shaped sleeve 71 and the extension arm 72 to rotate through the columnar shaft rod 54, so as to cover all the intersections of adjacent tank pieces, drive the spliced cylindrical tank pieces to be welded and fixed to each other, and finally form a shape.

[0050] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic welding device for a vertical storage tank, characterized in that, Including: A main fixed frame (1) for fixing the structure of the automatic welding device for vertical storage tanks; A side-suspended frame (2) is located on the main fixed frame (1) for installing the displacement drive structure of the welding element; A suspended die cylinder (3) is located on the main fixed frame (1) and serves as a die for splicing tank sheets during the welding of storage tanks; A tank sheet input mechanism (4) is located on the side-suspended frame (2) for inputting the tank sheet raw materials required during the welding of storage tanks; A displacement linkage mechanism (5) is located on the side-suspended frame (2), and in cooperation with the parallel shaft frame structure, drive gear parts and bottom-mounted slide (41) of the side-suspended frame (2), is used to drive the displacement of the tank sheet extraction and welding structure; A material-taking synchronization mechanism (6) is located on the displacement linkage mechanism (5), and in cooperation with the traction rod structure of the central sleeve shaft (51), drive screw (53), arranged shaft rod (54) and abutting disc (55), is used to extract and convey the tank sheet raw materials required for the storage tank; A cross-welding mechanism (7) is located on the material-taking synchronization mechanism (6) and is used to synchronously weld the spliced tank sheet raw materials in cooperation with the linkage sleeve seat two (62); A clamping and top-touching mechanism (8) is located on the suspended die cylinder (3) and is used to synchronously clamp the spliced tank sheet raw materials in cooperation with the arranged shaft rod (54).

2. The automatic welding device for a vertical storage tank according to claim 1, characterized in that, The side-suspended frame (2) is fixedly connected to one side of the main fixed frame (1), and the parallel shaft frame structure of the side-suspended frame (2) is fixed on the side-suspended frame (2). The drive gear parts of the side-suspended frame (2) are arranged on the side-suspended frame (2). The suspended die cylinder (3) is suspended and fixed on the top of the main fixed frame (1). The tank sheet input mechanism (4) is arranged on the side of the main fixed frame (1) away from the side-suspended frame (2) and is located on one side of the input port of the suspended die cylinder (3). The displacement linkage mechanism (5) is arranged on the parallel shaft frame structure of the side-suspended frame (2) and extends above the tank sheet input mechanism (4) through the inside of the suspended die cylinder (3). The material-taking synchronization mechanism (6) is sleeved and movable on the displacement linkage mechanism (5). The cross-welding mechanism (7) is sleeved and arranged on the material-taking synchronization mechanism (6). The clamping and top-touching mechanism (8) is embedded in the suspended die cylinder (3).

3. The automatic welding device for a vertical storage tank according to claim 1, wherein, The tank sheet input mechanism (4) includes a bottom-mounted slide (41) and an arc-shaped storage slide (42). The bottom-mounted slide (41) is fixedly installed on the side of the main fixed frame (1) away from the side-suspended frame (2). The arc-shaped storage slide (42) is slidably embedded inside the bottom-mounted slide (41). An elastic zigzag rod (43) is connected between the bottom of the arc-shaped storage slide (42) and the bottom wall of the bottom-mounted slide (41).

4. The automatic welding device for a vertical storage tank according to claim 1, characterized in that, The displacement linkage mechanism (5) comprises a central sleeve shaft (51) and an external sleeve shaft (52); the central sleeve shaft (51) is fixedly embedded in a side of the parallel shaft frame structure of the side suspension frame (2) away from the suspension mold cylinder (3); the external sleeve shaft (52) is sleeved on the central sleeve shaft (51) and rotatably embedded in a side of the parallel shaft frame structure of the side suspension frame (2) close to the suspension mold cylinder (3); the driving screw (53) is rotatably embedded in the interior of the central sleeve shaft (51); and the traction rod structure of the central sleeve shaft (51) is fixedly arranged on the central sleeve shaft (51). Close to one end of the suspension mold cylinder (3), the array shafts (54) are fixed in a rectangular distribution on one side of the external sleeve (52) close to the suspension mold cylinder (3); the driving screw (53), the traction rod structure of the central sleeve (51) and the array shafts (54) pass through the interior of the suspension mold cylinder (3) and extend to the outside of the bottom slide (41); the abutment plate (55) is fixedly connected to one end of the array shafts (54) away from the external sleeve (52); and the abutment plate (55) is provided with an arc-shaped cone structure on the side facing the array shafts (54).

5. The automatic welding device for a vertical storage tank according to claim 1, characterized in that, The material taking synchronization mechanism (6) comprises a linkage sleeve seat 1 (61), a linkage sleeve seat 2 (62) and a nut auxiliary wheel (63). The linkage sleeve seat 1 (61) and the linkage sleeve seat 2 (62) are embedded in parallel between the arranged shaft rods (54) and slide along the arranged shaft rods (54). The linkage sleeve seat 1 (61) is closer to the can sheet input mechanism (4) than the linkage sleeve seat 2 (62). The nut auxiliary wheel (63) is rotatably embedded in the interior of the linkage sleeve seat 1 (61), and the inner thread end is spirally sleeved on the outer thread surface of the driving screw rod (53), and the nut auxiliary wheel (63) is sleeved and slidably on the traction rod structure of the central sleeve shaft (51). A retaining spring structure is fixedly connected between the linkage sleeve seat 1 (61) and the linkage sleeve seat 2 (62). The top of the linkage sleeve seat 1 (61) is rotatably connected to a side close to the contact plate (55). The contact curved rod (64) is composed of a short-distance rod and a long-distance rod structure. The short-distance rod of the contact curved rod (64) is close to the contact plate (55), and the long-distance rod structure is provided with a slide groove. A traction drag rod (65) is fixedly installed on the top of the linkage sleeve seat 2 (62). The end of the traction drag rod (65) away from the linkage sleeve seat 2 (62) is embedded and slid in the slide groove of the long-distance rod structure of the contact curved rod (64). A straight rail structure is arranged at the bottom of the linkage sleeve seat 1 (61), and a traction slide rod (66) is slidably installed through the straight rail structure. The bottom end of the traction slide rod (66) is provided with a suction cup structure distributed along an arc. A linkage push rod (67) is rotatably connected to the bottom of the linkage sleeve seat 2 (62). The end of the linkage push rod (67) away from the linkage sleeve seat 2 (62) is rotatably connected to the traction slide rod (66).

6. The automatic welding device for a vertical storage tank according to claim 1, characterized in that, The cross-welding mechanism (7) includes an arc-shaped sleeve (71). The inner side of the arc-shaped sleeve (71) is provided with a card slot structure distributed in a rectangle, and is engaged and slid on the columnar shaft (54) through the card slot structure. The arc-shaped sleeve (71) is sleeved and fixed on the linkage sleeve base two (62). The bottom of the arc-shaped sleeve (71) is provided with opposite extension arms (72).

7. The automatic welding device for a vertical storage tank according to claim 1, characterized in that, The clamping and pressing mechanism (8) includes an embedded disk (81). The center position of the embedded disk (81) is provided with a fitting groove distributed in a rectangle, and is sleeved on the columnar shaft (54) through the fitting groove. The embedded disk (81) is embedded into the interior of the suspended die cylinder (3) and is away from the input port of the suspended die cylinder (3). The side wall of the embedded disk (81) is provided with upper and lower opposite pressing members (82). The pressing member (82) includes a hydraulic driving member outputting outward and an arc plate structure with a fixed telescopic end.

8. The automatic welding device for a vertical storage tank according to claim 4, wherein The outer wall of the external sleeve shaft (52) is provided with a toothed ring structure meshing with the driving gear structure of the side suspension frame (2).

9. The automatic welding device for a vertical storage tank according to claim 4, wherein A driving motor element is arranged on the central sleeve shaft (51), and is in flat key transmission connection with one end of the driving screw (53) through the output shaft end of the driving motor element.

10. The automatic welding device for a vertical storage tank according to claim 6, characterized in that, A laser welding head element is arranged at the outer end of the extension arm (72).

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