A can body set and welding device

Abstract

The application discloses a tank body assembling and welding device and relates to the technical field of welding equipment.The device comprises an assembling device, an assembling and welding device and a tank body assembling and welding device.The assembling device comprises two assembling and clamping mechanisms arranged on a base and oppositely distributed.The assembling and clamping mechanism comprises a sliding clamping seat arranged on the base.The sliding clamping seat is slidably arranged by a clamping power unit arranged on the base.Two sliding clamping seats are provided with head clamps for clamping the head near the end.The two head clamps clamp the head to be close to each other and the tank body to complete the assembling.The assembling device further comprises an assembling and jacking mechanism arranged on the base and located between the two assembling and clamping mechanisms.The assembling and jacking mechanism is used for supporting and jacking the tank body so that the tank body is aligned with the head at both ends.The welding device comprises a pre-welding mechanism and a welding mechanism, which are used for welding the head and the tank body after assembling.

Description

Technical Field

[0001] This application relates to the field of welding equipment technology, and in particular to a tank assembly and welding apparatus. Background Technology

[0002] Diaphragm pressure tanks are pressure-stabilizing water storage devices that achieve gas-water separation through rubber diaphragms. The main materials include carbon steel, stainless steel, and fiberglass. They are widely used in central air conditioning circulating water pressure stabilization, fire water supply systems, and secondary water supply for high-rise buildings.

[0003] This equipment consists of a tank, a rubber diaphragm, and inlet / outlet water interfaces. Internally, a diaphragm separates the pre-filled air chamber from the water chamber, utilizing Boyle's gas law to compress air and store energy for pressure regulation. The diaphragm can expand and contract over 200,000 times and is food-grade certified, effectively preventing water contamination and tank corrosion. Combined with an electrical contact pressure gauge, it can automatically control the water pump's operating frequency. Compared to bladder-type pressure tanks, its air-water isolation design eliminates the need for repeated inflation, maintaining stable system pressure for extended periods, reducing equipment maintenance costs, and extending service life.

[0004] The tank body typically consists of two heads and a cylindrical body, made of carbon steel and manufactured using welding processes. Previously, tank welding relied mainly on supports and manual assistance, requiring multiple people to work together. Due to the large size of the tank, this caused significant inconvenience to the welding operation, resulting in high labor intensity, high labor costs, inconsistent welding quality, and low welding efficiency. Summary of the Invention

[0005] To address the aforementioned problems, improve tank welding efficiency and quality, reduce labor intensity, and lower labor costs, this application provides a tank assembly and welding apparatus.

[0006] The technical solution of the tank assembly and welding device provided in this application is as follows.

[0007] A tank assembly and welding device includes: a base, on which an assembly device and a welding device are disposed;

[0008] The assembly device includes two assembly clamping mechanisms, one on the left and one on the right, which are arranged opposite to each other on the base. Each assembly clamping mechanism includes a sliding clamping seat on the base. The sliding clamping seat is driven to slide by a clamping power unit on the base. The two sliding clamping seats are rotatably arranged with end cap clamps for clamping the end caps at the closer ends. When the two assembly clamping mechanisms approach each other, the two end cap clamps clamp the end caps and the cylinder to complete the assembly.

[0009] The assembly device also includes an assembly lifting mechanism disposed on the base and located between the two assembly clamping mechanisms. The assembly lifting mechanism is used to support and lift the cylinder so that the cylinder is aligned with the end caps at both ends.

[0010] The welding device includes a pre-welding mechanism and a welding mechanism, used for welding the assembled head and cylinder.

[0011] By adopting the above technical solution, and through the setting of two clamping mechanisms on the left and right sides, two end caps can be clamped from the left and right ends respectively. Driven by the clamping power unit, the two end caps are gradually pushed closer together. Through the setting of the assembly lifting mechanism, the cylinder can be placed and lifted to a suitable height, consistent with the height of the end caps on the left and right ends. When the two end caps gradually approach from the left and right sides, the two ends of the cylinder are clamped, realizing the assembly of the two end caps with the cylinder. With the setting of the pre-welding mechanism, pre-welding can be performed first, which helps to reduce the cooling rate after welding, reduce the temperature difference in the heat-affected zone, and reduce welding stress. Then, the welding mechanism completes the welding operation, realizing the welding production of the tank. This improves the welding efficiency of the tank, improves the welding quality, reduces the intensity of manual labor, and reduces labor costs.

[0012] Optionally, the sliding clamping seat is slidably engaged with the base via a slide rail slider, and the clamping power unit includes a first cylinder mounted on the sliding clamping seat, the extension rod of the first cylinder being connected to the base.

[0013] By adopting the above technical solution, the first cylinder provides power to drive the sliding clamping seat to slide on the base.

[0014] Optionally, the assembly clamping mechanism further includes a sliding clamp seat, which is slidably engaged with the base via a slide rail slider. The sliding clamp seat is provided with a first guide shaft that is slidably guided by the sliding clamp seat. The sliding clamp seat is provided with a second cylinder, and the extension rod of the second cylinder is connected to the sliding clamp seat.

[0015] By adopting the above technical solution, the relative movement between the sliding fixture seat and the sliding clamping seat through the setting of the first guide shaft plays a sliding guiding role, and the sliding fixture seat is moved by the power provided by the cylinder through the setting of the second cylinder.

[0016] Optionally, the end cap clamp is mounted on a sliding clamp seat, and a push disk is coaxially mounted inside the end cap clamp. The push disk is located at the inner end of a rotating shaft. After passing through the sliding clamp seat, the rotating shaft is axially fixed and circumferentially rotated with the sliding clamp seat. A first motor for driving the rotating shaft to rotate is mounted on the sliding clamp seat in any pair of clamping mechanisms. An air plate is coaxially mounted inside the push disk. A vent hole is opened on the push disk and the rotating shaft. An air pipe connector for an external air passage is provided at the outer end of the rotating shaft.

[0017] By adopting the above technical solution, the pusher can cooperate with the head clamp to clamp the head and the cylinder to complete the assembly. The rotating shaft can clamp the head and the cylinder to rotate under the drive of the first motor, which facilitates spot welding. When the second cylinder drives the sliding clamp seat to approach the sliding clamping seat, the pusher can push the head out of the head clamp.

[0018] Optionally, the head clamp is provided with a number of pre-welded clearance holes.

[0019] By adopting the above technical solution, the pre-welding avoidance hole facilitates the exposure of the pre-welding position for pre-welding.

[0020] Optionally, the assembly lifting mechanism includes a lifting plate, which is slidably guided to the base via several second guide shafts. The lifting plate is driven to rise and fall by a screw jack mounted on the base. The lifting plate is provided with several lifting blocks for supporting the cylinder. The lifting blocks are V-shaped and are provided with lifting wheels that contact the cylinder.

[0021] By adopting the above technical solution, the lifting power is increased by using a screw jack to drive the lifting plate up and down. The lifting control is stable and reliable, and it has a self-locking function, ensuring that the height of the lifting plate itself will not easily change, thus guaranteeing the support stability of the cylinder. Multiple lifting blocks are installed on the lifting plate, and lifting wheels are mounted on the lifting blocks to facilitate contact with the cylinder, minimizing friction between the blocks and the cylinder when the tank rotates.

[0022] Optionally, the pre-welding mechanism includes a pre-welding bracket mounted on a sliding fixture seat. The pre-welding bracket is equipped with a first electric slide table, and a first fine-tuning slide table is mounted on the first electric slide table. The first electric slide table drives the first fine-tuning slide table to move in the front-back direction. The first fine-tuning slide table drives a second fine-tuning slide table to move in the left-right direction. The second fine-tuning slide table drives a first pneumatic slide table to move up-down. A welding torch for spot welding is mounted on the first pneumatic slide table, and the first pneumatic slide table drives the welding torch to move in the front-back direction.

[0023] By adopting the above technical solution and setting the pre-welding mechanism, the first electric slide can be adjusted in the forward and backward direction, the first fine-tuning slide can be adjusted in the left and right direction, the second fine-tuning slide can be adjusted in the up and down direction, and the first pneumatic slide can be adjusted in the forward and backward direction. Ultimately, this drives the welding torch to move in multiple directions. The welding torch control and adjustment are flexible, which helps to improve the accuracy of the pre-welding position. Furthermore, the first and second fine-tuning slides can be adjusted at a micro-distance according to different tanks. This makes it suitable for pre-welding operations of tanks of different sizes and specifications, with good versatility and strong applicability.

[0024] Optionally, the welding mechanism includes a welding bracket mounted on a base. Two welding seats are slidably mounted on the welding bracket in the same direction as the sliding clamping seat. The welding seats are slidably engaged with the welding bracket via a slide rail slider. A rack is mounted on the welding bracket. A second motor is mounted on the welding seats. The second motor drives a gear meshing with the rack to rotate. A second electric slide is mounted on the welding seats. The second electric slide drives a welding slide rod to move up and down. A plasma welding torch head assembly is mounted on one side of the welding slide rod, and an argon arc welding torch head assembly is mounted on the other side of the welding slide rod.

[0025] By adopting the above technical solution, the welding operation of the end caps and cylinder at both ends can be realized through the setting of two welding seats. The welding seats slide with the welding support through a sliding rail slider, and the welding seats are controlled by a second motor through gear and rack meshing transmission. The movement control of the welding seats is stable and reliable. The setting of the second electric slide table can drive the welding slide rod to move up and down, which in turn can drive the plasma welding gun head assembly and the argon arc welding gun head assembly to move up and down, so as to adjust the position.

[0026] Optionally, the plasma welding torch head assembly includes a sliding table that moves along the front-to-back direction on a welding slide rod, a lead screw that rotates on the welding slide rod, a rotating handle at one end of the lead screw, the lead screw threadedly engaging with a nut on the sliding table, a third electric slide on the sliding table, the third electric slide driving a fourth electric slide to move left and right, the fourth electric slide driving a second pneumatic slide to move up and down, and the second pneumatic slide driving the plasma welding torch to move up and down.

[0027] By adopting the above technical solution and through the structural design of the plasma welding torch head assembly, the plasma welding torch can move independently to the area to be welded for plasma welding.

[0028] Optionally, the argon arc welding torch head assembly and the plasma welding torch head assembly are arranged symmetrically.

[0029] By adopting the above technical solution, it is convenient to use argon arc welding process for welding.

[0030] In summary, this application includes at least the following beneficial effects:

[0031] This application utilizes two clamping mechanisms on the left and right sides to clamp two end caps from each end. Driven by a clamping power unit, the two end caps are gradually brought closer together. A lifting mechanism is then used to place the cylinder and raise it to a suitable height, matching the height of the end caps on both sides. As the two end caps gradually approach from the left and right sides, they clamp the ends of the cylinder, achieving the assembly of the two end caps with the cylinder. The pre-welding mechanism allows for pre-welding, which helps reduce the cooling rate after welding, minimizes the temperature difference in the heat-affected zone, and reduces welding stress. The welding operation is then completed by the welding mechanism, enabling the welding production of the tank. This improves tank welding efficiency, enhances welding quality, reduces manual labor intensity, and lowers labor costs. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of a tank assembly and welding device.

[0034] Figure 2 This is a schematic diagram of the main structure of a tank assembly and welding device (excluding the electrical cabinet).

[0035] Figure 3 This is a schematic diagram of another perspective of a tank assembly and welding device (excluding the electrical cabinet).

[0036] Figure 4 yes Figure 3 Schematic diagram of enlarged structure A in the middle section

[0037] Figure 5 This is a schematic diagram of the assembly clamping mechanism.

[0038] Figure 6 This is a cross-sectional structural diagram of the clamping mechanism.

[0039] Figure 7 This is a schematic diagram of the assembly clamping mechanism (with part of the outer shell removed).

[0040] Figure 8 This is a schematic diagram of the jacking mechanism.

[0041] Figure 9 This is a schematic diagram of the pre-welding mechanism.

[0042] Figure 10 This is a schematic diagram of the welding mechanism.

[0043] Figure 11 yes Figure 10 A magnified schematic diagram of part B in the middle section.

[0044] Explanation of reference numerals in the attached drawings: 1. Base; 2. Electrical cabinet; 3. Sliding clamping seat; 4. First cylinder; 5. Sliding clamp seat; 6. First guide shaft; 7. Second cylinder; 8. End cap clamp; 9. Push plate; 10. Rotating shaft; 11. Air plate; 12. Vent hole; 13. First motor; 14. Pre-welded clearance hole; 15. Lifting plate; 16. Screw jack; 17. Second guide shaft; 18. Lifting block; 19. Lifting wheel; 20. Pre-welded bracket; 21. First electric slide; 22. First fine-tuning slide; 23. Second fine-tuning slide; 24. First pneumatic... 25. Slide table; 26. Fine-tuning base plate; 27. Fine-tuning screw; 28. Fine-tuning slide rail; 29. ​​Fine-tuning knob; 30. Fine-tuning slide plate; 31. Fine-tuning slider; 32. Welding bracket; 33. Welding seat; 34. Rack; 35. Second electric slide table; 36. Welding slide rod; 37. Slide table; 38. Rotating handle; 39. Third electric slide table; 40. Fourth electric slide table; 41. Second pneumatic slide table; 42. Plasma welding torch; 43. Locking plate; 44. Locking stud; 45. Locking handle; 46. Argon arc welding torch; 47. Sliding door. Detailed Implementation

[0045] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] The following is in conjunction with the appendix Figures 1 to 11 This application will be described in further detail.

[0047] This application discloses a tank assembly and welding device.

[0048] Reference Figures 1 to 11 A tank assembly and welding device includes: a base 1, on which an assembly device and a welding device are provided.

[0049] The base 1 is the bottom support base of the tank assembly welding device in the embodiment, and the electrical cabinet 2 is arranged behind the base 1.

[0050] The assembly device includes an assembly clamping mechanism and an assembly lifting mechanism.

[0051] There are two pairing clamping mechanisms, which are distributed on the left and right ends of the base 1 and are relatively distributed, sliding close to or far from each other on the base 1.

[0052] The assembly clamping mechanism includes a sliding clamping seat 3, a clamping power unit, a sliding clamping seat 5, and a head clamp 8.

[0053] The sliding clamping seat 3 is slidably engaged with the base 1 via a slide rail slider. The clamping power unit includes a first cylinder 4 mounted on the sliding clamping seat 3. The extension rod of the first cylinder 4 is connected to the base 1. The sliding clamping seat 3 is slidably mounted by the first cylinder 4 mounted on the base 1, thus realizing the sliding of the sliding clamping seat 3 on the base 1.

[0054] The sliding clamp seat 5 is slidably engaged with the base 1 via a slide rail slider. The sliding clamp seat 5 is provided with a first guide shaft 6 that is slidably engaged with the sliding clamp seat 3. The sliding clamp seat 3 is provided with a second cylinder 7. Two second cylinders 7 are provided and distributed on both sides of the sliding clamp seat 3. The extension rod of the second cylinder 7 is connected to the sliding clamp seat 5. The second cylinder 7 provides power to drive the sliding clamp seat 5 to move. When the sliding clamp seat 3 is stationary, the sliding clamp seat 5 can be driven by the second cylinder 7 to slide on the base 1.

[0055] The head clamp 8 is a rotating component, a head-contouring guide tool used to clamp the head.

[0056] The head clamp 8 is rotatably mounted on the sliding clamp seat 5. A push disk 9 is coaxially mounted inside the head clamp 8. The push disk 9 is fixedly mounted on the inner end of the rotating shaft 10. The rotating shaft 10 is engaged with the sliding clamp seat 5 through a linear bearing. After the rotating shaft 10 passes through the sliding clamp seat 5, it is axially fixed and axially rotated with the sliding clamp seat 3.

[0057] An air plate 11 is coaxially arranged inside the push plate 9. A vent hole 12 is opened on the push plate 9 and the rotating shaft 10. An air pipe connector for an external air passage is provided at the outer end of the rotating shaft 10. By setting the air plate 11, the end cap can be adsorbed, ensuring the stability of the end cap clamping and facilitating the removal of the end cap from the clamp.

[0058] When the two assembly clamping mechanisms approach each other, the two head clamps 8 clamp the head and the cylinder to complete the assembly.

[0059] In the assembly and clamping mechanism at the left end, a first motor 13 is provided on the sliding clamping seat 3 to drive the rotating shaft 10 to rotate. By setting the first motor 13, the rotating shaft 10 is driven to rotate through the synchronous belt drive, which can drive the push disk 9 to rotate. Then, after the two end cap clamps 8 clamp the end caps and squeeze the cylinder to complete the assembly, the whole thing can be driven to rotate together.

[0060] Several pre-welding clearance holes 14 are provided at intervals along the circumference on the head clamp 8. The opening of the pre-welding clearance holes 14 avoids interference after the assembly is completed and facilitates pre-welding.

[0061] The assembly lifting mechanism is set on the base 1 and located between the two assembly clamping mechanisms. The assembly lifting mechanism is used to support and lift the cylinder so that the cylinder is aligned with the end caps at both ends.

[0062] The jacking mechanism includes a jacking plate 15 and a screw jack 16. The jacking plate 15 is slidably guided to the base 1 through four second guide shafts 17. The jacking plate 15 is driven to rise and fall by the screw jack 16 set on the base 1. Two jacking blocks 18 for supporting the cylinder are set on the jacking plate 15. The jacking blocks 18 are V-shaped and have two jacking wheels 19 for contacting the cylinder, supporting the cylinder, and being able to roll and rotate.

[0063] The welding apparatus, which includes a pre-welding mechanism and a welding mechanism, is used to weld the assembled head and cylinder.

[0064] The pre-welding mechanism includes a pre-welding bracket 20 mounted on a sliding fixture seat 5. The pre-welding bracket 20 is located behind the sliding fixture seat 5. A first electric slide 21 is mounted on the pre-welding bracket 20. A first fine-tuning slide 22 is mounted on the first electric slide 21. The first electric slide 21 drives the first fine-tuning slide 22 to move in the front-back direction. The first fine-tuning slide 22 drives the second fine-tuning slide 23 to move in the left-right direction. The second fine-tuning slide 23 drives the first pneumatic slide 24 to move up-down. A welding torch for spot welding is mounted on the first pneumatic slide 24. The first pneumatic slide 24 drives the welding torch to move in the front-back direction.

[0065] The first fine-tuning slide 22 and the second fine-tuning slide 23 have the same structural principle, including a fine-tuning base plate 25. A fine-tuning screw 26 and a fine-tuning slide rail 27 are arranged in the same direction on the fine-tuning base plate 25. A fine-tuning knob 28 is installed at the end of the fine-tuning screw 26. The bottom of the fine-tuning slide plate 29 slides in cooperation with the fine-tuning slide rail 27 through the fine-tuning slider 30. The bottom of the fine-tuning slide plate 29 is provided with a fine-tuning nut that is threadedly engaged with the fine-tuning screw 26. The position of the fine-tuning slide plate 29 on the fine-tuning base plate 25 can be adjusted by manually rotating the fine-tuning knob 28 to drive the fine-tuning screw 26 to rotate.

[0066] By setting up the pre-welding mechanism, spot welding can be performed. The first electric slide 21 can be adjusted to move forward and backward, the first fine-tuning slide 22 can be adjusted to move left and right, the second fine-tuning slide 23 can be adjusted to move up and down, and the first pneumatic slide 24 can be adjusted to move forward and backward. Ultimately, the welding torch can be moved in multiple directions. The welding torch control and adjustment are flexible, which helps to improve the accuracy of the pre-welding position. Furthermore, the first fine-tuning slide 22 and the second fine-tuning slide 23 can be adjusted by micro-distance. They can be adjusted according to different tanks and are suitable for pre-welding operations of tanks of different sizes and specifications. They have good versatility and strong applicability.

[0067] The welding mechanism includes a welding bracket 31 mounted on a base 1, located behind the assembly device. Two welding seats 32 are slidably mounted on the welding bracket 31 in the same direction as the sliding clamping seat 3. The welding seats 32 are slidably engaged with the welding bracket 31 via slide rails and sliders. A rack 33 is mounted on the welding bracket 31, and a second motor 34 is mounted on each welding seat 32. The second motor 34 drives a gear meshing with the rack 33 to rotate. The two welding seats 32 enable welding operations on the end caps and cylinder at both ends. The welding seats 32 are slidably engaged with the welding bracket 31 via slide rails and sliders, and the second motor 34 drives the welding seats 32 through the gear and rack 33 meshing transmission. The movement control of the welding seats 32 is stable and reliable.

[0068] A second electric slide 35 is provided on the welding base 32. The second electric slide 35 drives the welding slide rod 36 to move up and down. A plasma welding torch head assembly is provided on one side of the welding slide rod 36, and an argon arc welding torch head assembly is provided on the other side of the welding slide rod 36. By providing the second electric slide 35, the welding slide rod 36 can be moved up and down, which in turn can drive the plasma welding torch head assembly and the argon arc welding torch head assembly to move up and down, thereby adjusting their positions.

[0069] The plasma welding torch head assembly includes a sliding table 37 that moves along the welding slide rod 36 in the front-to-back direction. A lead screw is rotatably mounted on the welding slide rod 36, with a rotating handle 38 at one end. The lead screw is threaded into a nut on the sliding table 37. A third electric slide 39 is mounted on the sliding table 37. The third electric slide 39 drives a fourth electric slide 40 to move left and right. The fourth electric slide 40 drives a second pneumatic slide 41 to move up and down. The second pneumatic slide 41 drives the plasma welding torch 42 to move up and down. Through the structural design of the plasma welding torch head assembly, the plasma welding torch 42 can move independently to the area to be welded for plasma welding.

[0070] A locking plate 43 is provided on the sliding table 37. A locking stud 44 is threaded onto the locking plate 43. A locking handle 45 is provided on the locking stud 44. By operating the locking handle 45, the locking mechanism is rotated, causing the locking mechanism to screw into and pass through the locking plate 43. The end of the locking stud abuts against the welded slide rod 36, thereby locking the position of the sliding table 37.

[0071] The argon arc welding torch head assembly and the plasma welding torch head assembly are symmetrically arranged to facilitate welding using the argon arc welding process. The argon arc welding torch 46 is driven to move up and down by the second pneumatic slide 41.

[0072] A movable door 47 is provided on the front side of the assembly device on the base 1. The movable door 47 is slidably engaged with the base 1 through a slide rail slider. A transparent plate, which can be a glass plate, is provided on the movable door 47 to facilitate observation through the transparent plate and to serve as a protective measure.

[0073] This application utilizes two clamping mechanisms on the left and right sides to clamp two end caps from each end. Driven by a clamping power unit, the two end caps are gradually brought closer together. A lifting mechanism is then used to place the cylinder and raise it to a suitable height, matching the height of the end caps on both sides. As the two end caps gradually approach from the left and right sides, they clamp the ends of the cylinder, achieving the assembly of the two end caps with the cylinder. The pre-welding mechanism allows for pre-welding, which helps reduce the cooling rate after welding, minimizes the temperature difference in the heat-affected zone, and reduces welding stress. The welding operation is then completed by the welding mechanism, enabling the welding production of the tank. This improves tank welding efficiency, enhances welding quality, reduces manual labor intensity, and lowers labor costs.

[0074] The operating principle of this application includes: circumferential welding of the workpieces (head and cylinder) after assembly;

[0075] The end caps and cylinder are manually hoisted and loaded. The two end caps are placed into the end cap clamps 8 and secured. The cylinder is then hoisted onto the lifting wheel 19. Upon activation, the two assembly clamping mechanisms move closer together, and the assembly lifting mechanism lifts the cylinder to align with the end caps at both ends. Air is drawn from the air pipe connector, and the air plate 11 absorbs the end caps, causing the end cap clamps 8, the push plate 9, and the air plate 11 to clamp the end caps and cylinder from both ends, completing the workpiece assembly. The pre-welding mechanism operates, and the spot welding gun passes through the pre-welding clearance hole 14 for spot welding. The first motor 13 operates, driving the push plate 9 to rotate, which in turn rotates the end cap clamps 8 and the entire workpiece. Rotation switches between different pre-welding clearance holes 14 to facilitate different pre-welding clearances with the spot welding gun. Spot welding is performed at the position to be welded at hole 14. After the pre-welding is completed, the second cylinder 7 retracts, driving the sliding clamp seat 5 to move closer to the sliding clamp seat 3. With the sliding clamp seat 3 stationary, the sliding clamp seats 5 at both ends move to the left and right, moving away from each other. The end cap clamp 8 disengages from the workpiece, exposing the circumferential seam between the end cap and the cylinder. The first motor 13 runs again, driving the workpiece to rotate as a whole. At the same time, the welding gun of the argon arc welding gun head assembly or the plasma welding gun head assembly runs to perform circumferential welding. After the circumferential welding is completed, the gas plate 11 stops adsorbing the end cap, the first cylinder 4 retracts, driving the sliding clamp seat 3 to move to the left and right, pushing the plate 9 and the gas plate 11 to disengage from the workpiece, thus completing the welding of the workpiece (tank).

[0076] In the description of this invention, it should be understood that the terms "both ends," "front side," "inner end," "outer end," "left and right," "bottom," "one end," "front," "upper," "lower," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. In the description of this invention, unless otherwise specified and limited, it should be noted that the term "connection" should be interpreted broadly. For example, it can refer to a mechanical connection or an electrical connection, or the internal connection of two elements. It can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0077] The above are merely preferred embodiments of the invention and are not intended to limit the invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the protection scope of the invention.

Claims

1. A tank assembly and welding device, characterized in that, include: A base (1) is provided with an assembly device and a welding device; The assembly device includes two assembly clamping mechanisms arranged on the base (1) and distributed opposite to each other. The assembly clamping mechanism includes a sliding clamping seat (3) and a sliding clamping seat (5) arranged on the base (1). The sliding clamping seat (3) is driven to slide by a clamping power unit arranged on the base (1). The two sliding clamping seats (3) are rotated towards each other and are equipped with end clamps (8) for clamping the end caps. When the two assembly clamping mechanisms approach each other, the two end clamps (8) clamp the end caps and the cylinder to complete the assembly. The sliding clamping seat (5) is slidably engaged with the base (1) through a slide rail slider. The assembly device also includes an assembly lifting mechanism disposed on the base (1) and located between the two assembly clamping mechanisms. The assembly lifting mechanism is used to support and lift the cylinder so that the cylinder is aligned with the end caps at both ends. The welding device includes a pre-welding mechanism and a welding mechanism, used for welding the assembled head and cylinder; The pre-welding mechanism includes a pre-welding bracket (20) mounted on a sliding fixture seat (5). A first electric slide (21) is mounted on the pre-welding bracket (20). A first fine-tuning slide (22) is mounted on the first electric slide (21). The first electric slide (21) drives the first fine-tuning slide (22) to move in the front-back direction. The first fine-tuning slide (22) drives the second fine-tuning slide (23) to move in the left-right direction. The second fine-tuning slide (23) drives the first pneumatic slide (24) to move up and down. A welding torch for spot welding is mounted on the first pneumatic slide (24). The first pneumatic slide (24) drives the welding torch to move in the front-back direction. The sliding clamp seat (5) is provided with a first guide shaft (6) that slides and guides the sliding clamp seat (3), and the sliding clamp seat (3) is provided with a second cylinder (7), the telescopic rod of the second cylinder (7) is connected to the sliding clamp seat (5); The end cap clamp (8) is set on the sliding clamp seat (5). A push disk (9) is coaxially set inside the end cap clamp (8). The push disk (9) is set at the inner end of the rotating shaft (10). The rotating shaft (10) passes through the sliding clamp seat (5) and is axially fixed and circumferentially rotated with the sliding clamp seat (3). A first motor (13) for driving the rotating shaft (10) to rotate is set on the sliding clamp seat (3) in any pair of clamping mechanisms. An air disk (11) is coaxially set inside the push disk (9). A vent hole (12) is opened on the push disk (9) and the rotating shaft (10). An air pipe connector for an external air passage is set at the outer end of the rotating shaft (10).

2. The tank assembly and welding device according to claim 1, characterized in that, The sliding clamping seat (3) is slidably engaged with the base (1) via a slide rail slider. The clamping power unit includes a first cylinder (4) mounted on the sliding clamping seat (3), and the telescopic rod of the first cylinder (4) is connected to the base (1).

3. The tank assembly and welding device according to claim 1, characterized in that, The head clamp (8) is provided with several pre-welded clearance holes (14).

4. The tank assembly and welding device according to claim 1, characterized in that, The lifting mechanism includes a lifting plate (15), which is slidably guided to the base (1) by a number of second guide shafts (17). The lifting plate (15) is driven to lift and lower by a screw jack (16) mounted on the base (1). The lifting plate (15) is provided with a number of lifting blocks (18) for supporting the cylinder. The lifting blocks (18) are V-shaped and are provided with lifting wheels (19) that contact the cylinder.

5. The tank assembly and welding device according to claim 1, characterized in that, The welding mechanism includes a welding bracket (31) mounted on a base (1). Two welding seats (32) are slidably mounted on the welding bracket (31) in the same direction as the sliding clamping seat (3). The welding seats (32) are slidably engaged with the welding bracket (31) via a slide rail slider. A rack (33) is mounted on the welding bracket (31). A second motor (34) is mounted on the welding seats (32). The second motor (34) drives the gear meshing with the rack (33) to rotate. A second electric slide (35) is mounted on the welding seats (32). The second electric slide (35) drives the welding slide rod (36) to move up and down. A plasma welding gun head assembly is mounted on one side of the welding slide rod (36), and an argon arc welding gun head assembly is mounted on the other side of the welding slide rod (36).

6. The tank assembly and welding device according to claim 5, characterized in that, The plasma welding torch head assembly includes a sliding table (37) that moves along the front-back direction on a welding slide rod (36). A lead screw is rotatably mounted on the welding slide rod (36), and a rotating handle (38) is mounted on one end of the lead screw. The lead screw is threadedly engaged with a nut on the sliding table (37). A third electric slide (39) is mounted on the sliding table (37). The third electric slide (39) drives a fourth electric slide (40) to move left and right. The fourth electric slide (40) drives a second pneumatic slide (41) to move up and down. The second pneumatic slide (41) drives the plasma welding torch (42) to move up and down.

7. The tank assembly and welding device according to claim 6, characterized in that, The argon arc welding torch head assembly and the plasma welding torch head assembly are structurally symmetrical.

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