A foam tank welding forming device

Abstract

The present invention discloses a foam tank welding and forming device, and relates to the technical field of welding and forming devices. The present invention includes a base and a tank body, and also includes: an inner lining fixing part, which is used to fix the tank body from the inside; a welding integral part, which is used to sequentially clean the weld surface, weld and form, and grind the weld on the tank body; and a driving part, which is used to drive the rotation of the rotating rod and the operation of the welding integral part. The advantages are: the present invention can coaxially fix the rotating rod and the tank body from the inside, and then the continuous rotation of the rotating rod can automatically switch the relative position of the cleaning block, the welding head, and the grinding block with the tank body, so that the cleaning, welding, and weld grinding of the tank body, the tank bottom, and the can connection position are automatically and orderly completed during the continuous rotation of the tank body. The overall operation is stable and efficient, and the welding quality and work efficiency are effectively guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of welding forming devices, in particular to a foam tank welding forming device. Background Art

[0002] A foam tank is a container used in fire fighting systems. It stores foam liquid and water inside. When needed, they can be mixed in a certain proportion to produce foam for fire extinguishing. During the production and molding process of the foam tank, it is necessary to weld the bottom of the tank and the can head to the tank body. Generally, in order to improve welding efficiency and improve welding effect, a ring welding machine is used for welding.

[0003] After searching, a patent document with publication number CN118081201A discloses an automatic welding forming system for a gas storage tank, including: a workbench, a mounting frame is provided in the middle position of the top of the workbench; an adjustment frame is provided on the mounting frame, and the positioning clamp can slide along the limiting card slot through the limiting card block.

[0004] The automatic welding forming system of the gas tank has the following shortcomings:

[0005] During welding, only the circular welding between the tank bottom or the can head and the tank body can be completed at a time, and welding cannot be performed simultaneously. The welding efficiency still needs to be improved. The grinding of the weld cannot be performed automatically as the welding process progresses, and requires separate control. In addition, when the weld is ground, the grinding roller and the rotating wheel disc have different rotation directions on the tank body. Under the influence of the two, the tank body tends to shift, and the operational stability is insufficient. Therefore, it is necessary to design a foam tank welding and forming device. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a foam tank welding and forming device, which solves the problems raised in the above-mentioned background technology.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A foam tank welding and forming device comprises a base and a tank body, and also comprises:

[0009] The liner fixing part is used to fix the tank body from the inside, and the liner fixing part includes a moving plate slidably mounted on the base, and a rotating rod is rotatably mounted on the moving plate, and the spreading assembly is mounted on the rotating rod;

[0010] The welding integrated part is used to sequentially clean the welding surface, weld and grind the weld of the tank body. The welding integrated part includes a mounting frame fixedly connected to the movable plate by two support rods, and a cleaning block, a welding head and a grinding block are installed at both ends of the mounting frame. A plurality of telescopic components matching the two cleaning blocks, the two welding heads and the two grinding blocks are installed on the mounting frame;

[0011] The driving part is used to drive the rotation of the rotating rod and the operation of the welding integral part. The driving part includes a connecting gear rotatably mounted on the side wall of the moving plate, and a pulling mechanism is installed between the connecting gear and multiple telescopic components.

[0012] Furthermore, a fixed plate is fixedly installed on the base, and a rotating disk is rotatably installed on one end of the fixed plate close to the movable plate, and a rotating ring is rotatably installed on one end of the movable plate close to the fixed plate, and the rotating ring has the same diameter as the rotating disk, and the inner diameter of the rotating ring is larger than the diameter of the rotating rod.

[0013] Furthermore, a placing table is fixedly installed on the base, and an arc-shaped plate is fixedly installed on the placing table. A plurality of grooves are opened on the side wall of one end of the arc-shaped plate close to the tank body, and a rolling column is rotatably installed in each groove.

[0014] Furthermore, the expansion assembly includes a screw rod rotatably installed in a rotating rod, and a movable ring is threadedly connected to the screw rod, a cylindrical groove is provided in the rotating rod and slidingly cooperates with the movable ring, a plurality of support rods are swingably installed on the movable ring, and an inner lining plate that cooperates with the inner wall of the tank body is swingably installed on the end of each support rod away from the movable ring, a servo motor is fixedly installed on the rotating rod, and the output end of the servo motor is fixedly connected to the screw rod.

[0015] Furthermore, a plurality of arc blocks are fixedly mounted on the rotating rod, an axle rod is fixedly mounted between every two adjacent arc blocks, each of the support rods is provided with a through groove that slides and rotates with the corresponding axle rod, a plurality of slide grooves that communicate with the cylindrical groove are provided on the side wall of the rotating rod, and each slide groove cooperates with the corresponding support rod respectively.

[0016] Furthermore, the telescopic assembly includes two lifting slots opened at the left and right ends of the mounting frame, and lifting blocks are slidably installed in the two lifting slots, springs are installed between the two lifting blocks and the corresponding lifting slots, and a fixing rod is fixedly installed between the two lifting blocks.

[0017] Furthermore, a fixing frame is fixedly installed on the side wall of the movable plate, and a driving motor is fixedly installed on the fixing frame, a driving gear is fixedly installed on the output end of the driving motor, a fixed gear ring is fixedly installed on the rotating rod, and the fixed gear ring is meshed with the driving gear, and the side of the fixed gear ring away from the driving gear is meshed with the connecting gear.

[0018] Furthermore, the pulling mechanism includes a fixed shaft fixedly mounted on the connecting gear, and three pulling racks are staggered on the fixed shaft, a first connecting rod is fixedly mounted on the cleaning block, a second connecting rod is fixedly mounted on the welding head, a third connecting rod is fixedly mounted on the grinding block, and rack rods are fixedly mounted on the first connecting rod, the second connecting rod and the third connecting rod, and each of the rack rods is respectively opposite to the corresponding pulling rack position.

[0019] Furthermore, the rack rod is composed of a connecting rod, a T-rod, a T-slot, a fixed rack and a tension spring. The connecting rod is fixedly connected to the first connecting rod, the fixed rack is installed at the bottom of the connecting rod, the T-rod is fixedly installed on the top of the fixed rack, the T-slot is opened at the bottom of the connecting rod, and the T-slot and the T-rod are slidably matched, and the tension spring is installed between the T-rod and the T-slot.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] 1: Through the cooperation of the rotating rod and the support assembly, the tank body can be supported and fixed from the inside, so that it can be coaxially fixed with the rotating rod. Compared with the external fixation, it has the advantages of no need to accurately adjust the position of the tank body and higher rotation stability after fixation, which can improve the subsequent welding treatment effect.

[0022] 2: Through the design of the welded integrated part, the cleaning mechanism, welding mechanism and grinding mechanism can be integrated, so that the cleaning, welding and grinding processes of the tank body are all in the same position, avoiding the position deviation of the tank body due to the influence of different forces during the processing, thereby ensuring the stability of operation.

[0023] 3: Through the design of the drive unit, the cleaning, welding and grinding of the tank body can be automatically and orderly completed through the operation of a drive motor during the entire processing process, which effectively improves the degree of automation. The switching of cleaning, welding and grinding actions is smooth and stable, and will not interfere with the overall processing.

[0024] 4: Through the design of two relatively positioned cleaning blocks, two welding heads and two grinding blocks, the cleaning, welding and weld grinding of the can body, can bottom and can connection position can be completed at the same time, which is more in line with the welding forming of foam cans and can effectively improve work efficiency.

[0025] In summary, the present invention can coaxially fix the rotating rod and the tank body from the inside, and then continuously rotate the rotating rod to automatically switch the relative positions of the cleaning block, the welding head and the grinding block with respect to the tank body, thereby automatically and orderly completing the cleaning, welding and weld grinding of the tank body, the tank bottom and the can connection position during the continuous rotation of the tank body. The overall operation is stable and efficient, and the welding quality and work efficiency are effectively guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a structural schematic diagram of a foam tank welding and forming device proposed by the present invention;

[0027] Figure 2 for Figure 1 Schematic diagram of the structure after removing the tank;

[0028] Figure 3 for Figure 2 Schematic diagram of the structure with the bottom plate removed;

[0029] Figure 4 for Figure 3 A schematic diagram of the structure from another perspective;

[0030] Figure 5 for Figure 4 A schematic diagram of the structure of part A in the middle;

[0031] Figure 6 for Figure 4 Schematic diagram of the structure after removing the moving plate;

[0032] Figure 7 for Figure 2 Schematic diagram of the structure at the midsole plate;

[0033] Figure 8 for Figure 6 Schematic diagram of the structure at the transfer rod from another perspective;

[0034] Fig. 9 for Figure 8 Schematic diagram of the structure at the middle lining plate from another perspective;

[0035] Fig.10 for Figure 8 Schematic diagram of another perspective of the structure with the inner lining removed;

[0036] Fig.11 for Figure 6 A schematic diagram showing another perspective of the structure where the rotating rod is removed;

[0037] Fig.12 for Fig.11 Schematic diagram of the enlarged structure of part B.

[0038] In the figure: 1, base; 2, tank body; 3, fixed plate; 4, placing table; 5, curved plate; 6, moving plate; 7, rotating rod; 8, screw; 9, moving ring; 10, support rod; 11, slide groove; 12, lining plate; 13, curved block; 14, shaft rod; 15, through groove; 16, servo motor; 17, fixed frame; 18, driving motor; 19, driving gear; 20, fixed gear ring; 21, support rod; 22, mounting frame; 23, lifting groove; 24, lifting block; 25, spring; 26, cleaning block; 27, welding head; 28, grinding block; 29, fixed rod; 30, first connecting rod; 31, second connecting rod; 32, third connecting rod; 33, rack rod; 34, connecting gear; 35, fixed shaft; 36, pulling rack; 37, moving block; 38, moving groove; 39, rolling column; 40, rotating disc. DETAILED DESCRIPTION

[0039] Reference Figure 1-Figure 12 A foam tank welding and forming device comprises a base 1 and a tank body 2, and also comprises an inner lining fixing part, the inner lining fixing part is used to fix the tank body 2 from the inside, the inner lining fixing part comprises a moving plate 6 slidably mounted on the base 1, two moving blocks 37 are fixedly mounted on the bottom of the moving plate 6, two moving grooves 38 are provided on the base 1, and the two moving grooves 38 are respectively slidably matched with the two moving blocks 37, Figure 1 The base 1 and movable groove 38 shown in the figure are partially displayed, and there is still a part on the right side that is not displayed. The actual length of the movable groove 38 needs to be greater than the height of the tank body 2, so that it is convenient to place the tank body 2 on the base 1 before welding. In addition, a threaded rod can be rotatably set on the right side wall of the base 1, and the part of the threaded rod located in the movable groove 38 is threadedly connected with the movable block 37. Therefore, when in use, the movable plate 6 can be moved left and right on the base 1 by rotating the threaded rod, and its position relative to the fixed plate 3 can be adjusted.

[0040] A fixed plate 3 is fixedly installed on the base 1, and a rotating disk 40 is rotatably installed on one end of the fixed plate 3 close to the movable plate 6. A rotating ring is rotatably installed on one end of the movable plate 6 close to the fixed plate 3, and the rotating ring has the same diameter as the rotating disk 40. The inner diameter of the rotating ring is larger than the diameter of the rotating rod 7. The rotating ring is not shown in the figure. When the movable plate 6 is close to the fixed plate 3, the left and right ends of the tank body 2 can be clamped. At the same time, due to the design of the rotating disk 40 and the rotating ring, the clamped tank body 2 rotates between the fixed plate 3 and the movable plate 6. The design of the inner diameter of the rotating ring is to avoid that the rotating ring is driven by the rotating rod 7 when it rotates, thereby affecting the clamping stability of the tank body 2.

[0041] A placing table 4 is fixedly installed on the base 1, and an arc-shaped plate 5 is fixedly installed on the placing table 4. A plurality of grooves are provided on the side wall of the arc-shaped plate 5 close to the tank body 2, and a rolling column 39 is rotatably installed in each groove. The arc-shaped plate 5 matches the outer curvature of the tank body 2 and is used to support the tank body 2. The design of the rolling column 39 can reduce the rotational resistance between it and the arc-shaped plate 5 when the tank body 2 rotates, thereby allowing the welding process to proceed more smoothly.

[0042] A rotating rod 7 is rotatably installed on the movable plate 6, and an expansion assembly is installed on the rotating rod 7. The expansion assembly includes a screw 8 rotatably installed in the rotating rod 7, and a movable ring 9 is threadedly connected to the screw 8. A cylindrical groove that slides with the movable ring 9 is opened in the rotating rod 7, and a plurality of support rods 10 are swingably installed on the movable ring 9. An inner lining plate 12 that cooperates with the inner wall of the tank body 2 is swingably installed on the end of each support rod 10 away from the movable ring 9. A servo motor 16 is fixedly installed on the rotating rod 7, and the output end of the servo motor 16 is fixedly connected to the screw 8. When the servo motor 16 is working, it can drive the screw 8 to rotate at the same time, so that the movable ring 9 moves left and right in the cylindrical groove, thereby driving the end of the support rod 10 connected to the movable ring 9 to move forward and backward at the same time.

[0043] A plurality of arc blocks 13 are fixedly mounted on the rotating rod 7, and a shaft rod 14 is fixedly mounted between every two adjacent arc blocks 13. A through groove 15 is provided on each support rod 10 for sliding and rotating with the corresponding shaft rod 14. A plurality of slide grooves 11 communicating with the cylindrical groove are provided on the side wall of the rotating rod 7, and each slide groove 11 is respectively matched with the corresponding support rod 10. The end of the support rod 10 close to the moving ring 9 is slidably connected with the slide groove 11. Under the cooperation of the shaft rod 14 and the through groove 15, the moving direction of the support rod 10 between two adjacent arc blocks 13 is limited. Therefore, when the moving ring 9 moves back and forth in the cylindrical groove, through The driving of the support rod 10 and the limitation of the moving direction of the support rod 10 by the shaft rod 14 enable the support rod 10 to expand outward or move toward the axis on the rotating rod 7. When multiple support rods 10 are simultaneously expanded outward on the rotating rod 7, multiple inner lining plates 12 can be simultaneously attached to and matched with the inner wall of the tank body 2. At this time, the fixation between the tank body 2 and the rotating rod 7 is completed through the support of multiple inner lining plates 12. During the subsequent welding process, the rotation of the rotating rod 7 also drives the tank body 2 to rotate. Therefore, the rotation of the tank body 2 during the welding process can be ensured to be coaxial with the rotating rod 7, avoiding the problem of deflection and movement, thereby effectively ensuring the welding effect.

[0044] A fixing frame 17 is fixedly mounted on the side wall of the movable plate 6, and a driving motor 18 is fixedly mounted on the fixing frame 17, a driving gear 19 is fixedly mounted on the output end of the driving motor 18, a fixed gear ring 20 is fixedly mounted on the rotating rod 7, and the fixed gear ring 20 is meshed with the driving gear 19. After the tank body 2 is fixed on the rotating rod 7, the driving motor 18 is started, and the rotating rod 7 can be rotated through the meshing effect of the driving gear 19 and the fixed gear ring 20. At this time, the tank body 2 can be rotated simultaneously between the fixed plate 3 and the movable plate 6, preparing for annular welding.

[0045] The welding integrated part is used to sequentially clean the weld surface, weld and grind the weld of the tank body 2. The welding integrated part includes a mounting frame 22 fixedly connected to the movable plate 6 by two support rods 21, wherein the support rod 21 is an L-shaped bracket composed of an arc rod and a cylinder, and the mounting frame 22 is a rectangular frame body in a top view. A cleaning block 26, a welding head 27 and a grinding block 28 are installed at both ends of the mounting frame 22. Figure 1 In the direction shown, the two cleaning blocks 26 at the left and right ends of the mounting frame 22 are in corresponding positions, and similarly, the two welding heads 27 and the two grinding blocks 28 are also in corresponding positions, wherein the cleaning block 26 can adopt sandpaper with cleaning and grinding functions, and the welding head 27 can adopt existing welding equipment for welding processing, and welding processing can be carried out by powering on when close to the tank body 2, and the grinding block 28 can adopt a grinding wheel.

[0046] The mounting frame 22 is provided with a plurality of telescopic components matched with the corresponding two cleaning blocks 26, two welding heads 27 and two grinding blocks 28. The telescopic components include two lifting slots 23 provided at the left and right ends of the mounting frame 22, and lifting blocks 24 are slidably installed in the two lifting slots 23, springs 25 are installed between the two lifting blocks 24 and the corresponding lifting slots 23, and a fixing rod 29 is fixedly installed between the two lifting blocks 24, wherein the two cleaning blocks 26, the two welding heads 27 and the two grinding blocks 28 are respectively fixedly connected with a corresponding lifting block 24, and through the design of the fixing rod 29, the two cleaning blocks 26, the two welding heads 27 or the two grinding blocks in the corresponding positions can be fixedly connected with the corresponding two cleaning blocks 26, the two welding heads 27 or the two grinding blocks. The upper and lower position movements of 28 are controlled simultaneously. When performing the specific operation, the tank body 2 is first fixed on the rotating rod 7, and then the two cleaning blocks 26 are first moved down and correspond to the connection positions of the two ends of the tank body with the tank bottom and the can head, and then the rotating rod 7 is rotated to rotate the tank body 2 for several circles. At this time, the cleaning blocks 26 automatically clean the welding surface to prevent dust or impurities from affecting subsequent welding; then the cleaning blocks 26 are reset and the welding head 27 is moved down, and then the rotating rod 7 drives the tank body 2 to rotate for several circles to realize automatic annular welding processing, and finally the welding head 27 is reset and the grinding block 28 is moved down and released from the tank body 2, and the rotating rod 7 is rotated for several circles, and the welding bead is automatically polished by the grinding block 28.

[0047] The driving part is used to drive the rotation of the rotating rod 7 and the operation of the welding integrated part. The driving part includes a connecting gear 34 rotatably mounted on the side wall of the movable plate 6. The fixed gear ring 20 is meshed with the connecting gear 34 on the side away from the driving gear 19. A pulling mechanism is installed between the connecting gear 34 and the multiple telescopic components. The pulling mechanism includes a fixed shaft 35 fixedly mounted on the connecting gear 34, and three pulling racks 36 are staggered on the fixed shaft 35. The first connecting rod 30 is fixedly mounted on the cleaning block 26, the second connecting rod 31 is fixedly mounted on the welding head 27, and the third connecting rod 32 is fixedly mounted on the grinding block 28. Rack rods 33 are fixedly mounted on the first connecting rod 30, the second connecting rod 31 and the third connecting rod 32. Each rack rod 33 is respectively opposite to the corresponding pulling rack 36. By utilizing the cooperation of multiple rack rods 33 with the first connecting rod 30, the second connecting rod 31 and the third connecting rod 32, as shown in FIG. Fig.12 As shown, when the connecting gear 34 rotates clockwise, the outermost pulling rack 36 on the fixed shaft 35 engages with the outermost rack rod 33, and at this time, the two cleaning blocks 26 are pulled downward by the first connecting rod 30 to first come into contact with the tank body 2, and the rotation of the tank body 2 is driven by the rotating rod 7 to realize automatic cleaning of the welding surface thereon, and then the pulling rack 36 in the middle position of the fixed shaft 35 engages with the middle rack rod 33, and at this time, the second connecting rod 31 drives the two welding heads 27 to move downward and approach the tank body 2, and the rotation of the rotating rod 7 is continued to realize the annular welding of the tank body 2, and finally, the innermost pulling rack 36 of the fixed shaft 35 engages with the innermost rack rod 33, and the rotating rod 7 rotates and drives the two grinding blocks 28 to move downward through the third connecting rod 32 to realize the grinding of the weld.

[0048] During the above-mentioned processing, only one pulling rack 36 on the fixed shaft 35 is meshed with the corresponding rack rod 33 at the same time. In addition, in order to ensure that the cleaning process, welding process and grinding process can be maintained for a sufficient time, the diameter of the connecting gear 34 is set to be larger than the diameter of the fixed gear ring 20, and the arc length of the pulling rack 36 thereon is set to be larger than the diameter of the fixed gear ring 20, thereby ensuring that after the rotating rod 7 rotates one circle, the cleaning block 26, the welding head 27 or the grinding block 28 can maintain contact with the tank body 2, thereby ensuring that the cleaning process, welding process and grinding process are carried out smoothly and effectively.

[0049] In order to avoid the rack rod 33 from moving downward too far due to pulling the rack 36, which may cause movement obstruction between the cleaning block 26, the welding head 27 or the grinding block 28 and the tank body 2, the specific structure of the rack rod 33 is designed as follows: the rack rod 33 is composed of a connecting rod, a T-rod, a T-slot, a fixed rack and a tension spring. The connecting rod is fixedly connected to the first connecting rod 30, the fixed rack is installed at the bottom of the connecting rod, the T-rod is fixedly installed on the top of the fixed rack, the T-slot is opened at the bottom of the connecting rod, and the T-slot and the T-rod are slidably matched, and the tension spring is installed between the T-rod and the T-slot. Through the cooperation of the T-rod, the T-slot and the tension spring, when the lifting block 24 is moved to the bottom of the lifting slot 23 under the action of tension, the fixed rack and the connecting rod are in a retractable state, so that the lifting block 24 does not change its position at the bottom of the lifting slot 23 and will not cause any obstruction to the continuous rotation of the connecting gear 34.

[0050] In the present invention, the working principle of a foam tank welding forming device is as follows:

[0051] Placement and fixation of the tank body 2: Place the tank body 2 to be welded as follows: Figure 1 The can body 2 is spliced ​​and fixed on the base 1 by the clamping action of the two.

[0052] After the clamping and fixing is completed, the servo motor 16 is started to rotate the screw rod 8 clockwise. At this time, the moving ring 9 moves leftward in the cylindrical groove, so that the multiple support rods 10 simultaneously drive the multiple lining plates 12 to open outward, and the tank body 2 is fixed from the inside to keep it coaxial with the rotating rod 7;

[0053] Weld surface cleaning: After the tank body 2 is fixed, the drive motor 18 is started, and the drive gear 19 is driven to rotate clockwise, so that the fixed gear ring 20 drives the rotating rod 7 to rotate counterclockwise, and then the connecting gear 34 is driven to rotate clockwise through the fixed gear ring 20. At this time, the outermost pulling rack 36 on the fixed shaft 35 meshes with the outermost rack rod 33 and pulls it down, and the two cleaning blocks 26 are moved down and contacted with the tank body 2 through the first connecting rod 30. The cleaning blocks 26 complete the cleaning of the weld surface on the tank body 2 through the rotation of the rotating rod 7;

[0054] Annular welding process: After the connecting gear 34 rotates a certain angle, the outermost pulling rack 36 is separated from the corresponding rack rod 33, so the corresponding telescopic assembly makes the cleaning block 26 move up and reset, and then the pulling rack 36 located in the middle on the fixed shaft 35 is engaged with the corresponding rack rod 33, and the two welding heads 27 are pulled down to the tank body 2 by the second connecting rod 31, and the annular welding process of the tank body 2 is completed by the rotation of the rotating rod 7;

[0055] Weld bead grinding treatment: the connecting gear 34 continues to rotate, the pulling rack 36 in the middle position is separated from the corresponding rack rod 33, the welding head 27 moves up and resets, the innermost pulling rack 36 is meshed with the corresponding rack rod 33, and under the action of the third connecting rod 32, the grinding block 28 moves down and contacts with the tank body 2, and then the grinding block 28 completes the grinding treatment of the weld through the rotation of the rotating rod 7.

[0056] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A foam tank welding and forming device, comprising a base (1) and a tank body (2), characterized in that: Also includes: An inner liner fixing portion, the inner liner fixing portion is used to fix the tank body (2) from the inside, the inner liner fixing portion comprises a moving plate (6) slidably mounted on the base (1), a rotating rod (7) rotatably mounted on the moving plate (6), and an expansion assembly is mounted on the rotating rod (7); The welding integrated part is used to sequentially clean the welding surface, perform welding forming and grind the weld bead of the tank body (2), the welding integrated part comprising a mounting frame (22) fixedly connected to the movable plate (6) via two support rods (21), and a cleaning block (26), a welding head (27) and a grinding block (28) are mounted on both left and right ends of the mounting frame (22), and a plurality of telescopic components matching the two cleaning blocks (26), the two welding heads (27) and the two grinding blocks (28) are mounted on the mounting frame (22); A driving part, the driving part is used to drive the rotation of the rotating rod (7) and the operation of the welding integral part, the driving part comprises a connecting gear (34) rotatably mounted on the side wall of the moving plate (6), and a pulling mechanism is installed between the connecting gear (34) and the plurality of telescopic components; The expansion assembly comprises a screw rod (8) rotatably mounted in a rotating rod (7), and a moving ring (9) is threadedly connected to the screw rod (8), a cylindrical groove is provided in the rotating rod (7) and is slidably matched with the moving ring (9), a plurality of support rods (10) are swingably mounted on the moving ring (9), and an inner lining plate (12) matching with the inner wall of the tank body (2) is swingably mounted on the end of each support rod (10) away from the moving ring (9), and a servo motor (16) is fixedly mounted on the rotating rod (7), and an output end of the servo motor (16) is fixedly connected to the screw rod (8); A plurality of arc blocks (13) are fixedly mounted on the rotating rod (7), a shaft rod (14) is fixedly mounted between every two adjacent arc blocks (13), each of the support rods (10) is provided with a through groove (15) which is slidably and rotationally matched with the corresponding shaft rod (14), a plurality of slide grooves (11) which are interconnected with the cylindrical groove are provided on the side wall of the rotating rod (7), and each slide groove (11) is respectively matched with the corresponding support rod (10); The pulling mechanism comprises a fixed shaft (35) fixedly mounted on a connecting gear (34), and three pulling racks (36) are staggeredly arranged on the fixed shaft (35); a first connecting rod (30) is fixedly mounted on the cleaning block (26), a second connecting rod (31) is fixedly mounted on the welding head (27), a third connecting rod (32) is fixedly mounted on the grinding block (28), and rack rods (33) are fixedly mounted on the first connecting rod (30), the second connecting rod (31) and the third connecting rod (32), respectively, and each of the rack rods (33) is located opposite to a corresponding pulling rack (36).

2. A foam tank welding and forming device according to claim 1, characterized in that: A fixed plate (3) is fixedly mounted on the base (1), and a rotating disk (40) is rotatably mounted on one end of the fixed plate (3) close to the movable plate (6), and a rotating ring is rotatably mounted on one end of the movable plate (6) close to the fixed plate (3), and the rotating ring has the same diameter as the rotating disk (40), and the inner diameter of the rotating ring is larger than the diameter of the rotating rod (7).

3. A foam tank welding and forming device according to claim 1, characterized in that: A placement table (4) is fixedly mounted on the base (1), and an arc-shaped plate (5) is fixedly mounted on the placement table (4). A plurality of grooves are formed on a side wall of one end of the arc-shaped plate (5) close to the tank body (2), and a rolling column (39) is rotatably mounted in each groove.

4. A foam tank welding and forming device according to claim 1, characterized in that: The telescopic assembly comprises two lifting slots (23) provided at left and right ends of the mounting frame (22), and lifting blocks (24) are slidably mounted in the two lifting slots (23), springs (25) are mounted between the two lifting blocks (24) and the corresponding lifting slots (23), and a fixing rod (29) is fixedly mounted between the two lifting blocks (24).

5. A foam tank welding and forming device according to claim 1, characterized in that: A fixing frame (17) is fixedly mounted on the side wall of the movable plate (6), and a driving motor (18) is fixedly mounted on the fixing frame (17). A driving gear (19) is fixedly mounted on the output end of the driving motor (18). A fixed gear ring (20) is fixedly mounted on the rotating rod (7), and the fixed gear ring (20) is meshed with the driving gear (19). A side of the fixed gear ring (20) away from the driving gear (19) is meshed with a connecting gear (34).

6. A foam tank welding and forming device according to claim 1, characterized in that: The rack rod (33) is composed of a connecting rod, a T-shaped rod, a T-shaped slot, a fixed rack and a tension spring. The connecting rod is fixedly connected to the first connecting rod (30). The fixed rack is installed at the bottom of the connecting rod. The T-shaped rod is fixedly installed at the top of the fixed rack. The T-shaped slot is opened at the bottom of the connecting rod, and the T-shaped slot and the T-shaped rod are slidably matched. The tension spring is installed between the T-shaped rod and the T-shaped slot.

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