A can body welding production process

Abstract

The application provides a can body welding production process, which utilizes a welding device to weld a can body; the welding device comprises a base, a supporting leg, a bearing seat, a rotating drum, a rotating disc, a U-shaped mounting rack, a first welding auxiliary module arranged on the top of the mounting rack and used for lifting, fixing and rotating driving a can bottom, a second welding auxiliary module arranged on the side end of the mounting rack and used for lifting and fixing a can body, a third welding auxiliary module arranged on the rotating disc and used for limiting and fixing a can mouth, a through hole arranged on the base and matched with the rotating drum, an inner welding module arranged on the bottom of the base and an outer welding module arranged on the side end of the mounting rack. The can body welding production process can not only meet the basic requirement of welding the can bottom, the can body and the can mouth together, but also quickly and conveniently lift the can bottom and the can body, and stably fix the can bottom, the can body and the can mouth, thereby improving the welding efficiency of the can body.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tank welding, in particular to a tank welding production process. BACKGROUND

[0002] The structure of the existing refrigerant storage tank is usually tank bottom, tank body, tank mouth arranged in turn, and the welding method is used at the position combined by two to connect as a whole.

[0003] For a storage tank with large capacity, in order to meet the pressure standard, welding process is usually used outside and inside the tank at the welding position, so as to form two-sided welds at one connection position to ensure the pressure capacity.

[0004] Publication No. CN 113333997 A provides a kind of storage tank body welding device, including fixed platform, is equipped with turntable, two columns;Two columns between still fixed with two annular tracks;Annular track is equipped with welding car;Welding car is equipped with outer welding gun, respectively in the combined part of tank body and tank bottom and tank body and tank mouth forms outer weld;The inside of storage tank extends into centering shaft;Centering adjusting mechanism is arranged on centering shaft;Centering shaft is also equipped with inner welding mechanism, with the rotation of storage tank, forms inner weld on the inner wall of storage tank. By this, the present application realizes the vertical fixation of the tank mouth, tank body and tank bottom by setting the turntable, jaw and pressure plate on the fixed platform. The outer welding gun moves on the circular track to realize the formation of outer weld. At the same time, the inner welding mechanism is arranged to form the inner weld in the storage tank after the formation of outer weld. The degree of automation of welding is high, which replaces manual work inside the tank, reduces labor intensity and improves welding efficiency. However, the above technical solution cannot quickly and time-savingly realize the upward lifting of the tank bottom and the tank body, and needs to rely on external force device, which will affect the efficiency of welding and the convenience of welding processing. SUMMARY

[0005] Therefore, the present application provides a tank welding production process to solve the above technical problems. The tank welding production process can not only meet the basic requirement of welding the tank bottom, tank body and tank mouth together, but also quickly and conveniently lift the tank bottom and tank body, and realize the stable fixation of the tank bottom, tank body and tank mouth, thereby improving the welding efficiency of the tank body.

[0006] To solve the above technical problems, the technical scheme adopted by the present application is as follows: a tank welding production process, which utilizes welding equipment to weld the tank body.

[0007] The welding device comprises a base, support legs arranged at the bottom of the base, a bearing seat arranged at the top of the base, a rotating drum arranged on the inner side wall of the bearing seat, a rotating disc fixedly sleeved at the top side end of the rotating drum, a U-shaped mounting frame arranged on the top of the base and crossing the rotating disc, a first welding auxiliary module arranged on the top of the mounting frame and used for lifting and fixing the bottom of the tank and rotating driving, a second welding auxiliary module arranged at the side end of the mounting frame and used for lifting and fixing the body of the tank, a third welding auxiliary module arranged on the rotating disc and used for limiting and fixing the mouth of the tank, a through hole arranged on the base and matched with the rotating drum, an inner welding module arranged at the bottom of the base, and an outer welding module arranged at the side end of the mounting frame;

[0008] The tank body comprises a tank mouth, a tank body and a tank bottom;

[0009] The tank body welding production process comprises the following steps:

[0010] S1, first, the tank bottom is placed vertically on the rotating disc with the opening facing downward, the tank bottom is fixed by the first welding auxiliary module, and the tank bottom is lifted; then, the tank body is placed vertically on the rotating disc, the tank body is fixed by the second welding auxiliary module, and the tank body is lifted; then, the tank mouth is placed vertically on the rotating disc, and the tank mouth is fixed by the third welding auxiliary module;

[0011] S2, the second welding auxiliary module drives the tank body to move downward by a certain distance, and the bottom of the tank body is spliced with the top of the tank mouth; then, the first welding auxiliary module drives the tank bottom to move downward by a certain distance, and the lower end of the tank bottom is spliced with the top of the tank body;

[0012] S3, the inner end of the connection between the tank body and the tank mouth is welded and fixed by the inner welding module, and the inner end of the connection between the tank body and the tank bottom is welded and fixed by the inner welding module, so as to complete the welding and fixing of the inside of the spliced part of the tank body;

[0013] S4, the second welding auxiliary module releases the limiting and fixing of the tank body, then the outer welding module moves to the position connected with the outer end of the connection between the tank body and the tank mouth, starts to weld the corresponding position, and simultaneously drives the tank bottom, the tank body and the tank mouth to rotate synchronously by the first welding auxiliary module, so that the outer welding module completes the welding and fixing of all positions of the outer end of the connection between the tank body and the tank mouth, then the first welding auxiliary module pauses the rotation adjustment of the tank body; the outer welding module moves to the matched position of the connection between the tank body and the tank bottom, starts to weld and fix the corresponding part, and simultaneously drives the tank bottom, the tank body and the tank mouth to rotate synchronously by the first welding auxiliary module, so that the outer welding module completes the welding and fixing of all positions of the outer end of the connection between the tank body and the tank bottom; in this way, the welding and fixing of the inner and outer sides of the connection of the tank body can be completed.

[0014] S5, then the first welding auxiliary module, the third welding auxiliary module can be released to the tank body fixed, and then the welding tank body from the turntable away.

[0015] The first welding auxiliary module comprises a first adjusting motor on the top bottom wall of the vertical mounting bracket, a mounting disc on the lower end of the output shaft of the first adjusting motor, a plurality of first telescopic push rods arranged at equal angles on the bottom of the mounting plate, a mounting cylinder on the lower end of the output shaft of the plurality of first telescopic push rods, a plurality of second telescopic push rods arranged at equal angles on the inner side wall of the mounting cylinder, and a first fixed pressing plate arranged at the output shaft end of the plurality of second telescopic push rods.

[0016] The second welding auxiliary module comprises a first linear slide table arranged on the inner side wall of the left and right side ends of the mounting bracket, a third telescopic push rod connected transversely to the slide seat of the two first linear slide tables, and a second fixed pressing plate arranged at the output shaft end of the two third telescopic push rods.

[0017] The third welding auxiliary module comprises a vertical cylinder arranged on the top side end of the turntable, a fourth telescopic push rod arranged at equal angles transversely on the inner side wall of the vertical cylinder, and a third fixed pressing plate connected to the output shaft of the plurality of fourth telescopic push rods.

[0018] The inner welding module comprises a U-shaped support arranged on the bottom of the base below the through hole, a fifth telescopic push rod arranged vertically on the top wall of the bottom of the support, a second adjusting motor arranged vertically on the output shaft end of the fifth telescopic push rod, a sixth telescopic push rod connected transversely to the output shaft of the second adjusting motor, and a first welding gun connected to the output shaft end of the sixth telescopic push rod.

[0019] The outer welding module comprises a through hole arranged on one side end of the mounting bracket, a U-shaped fixing frame arranged on the side wall of the mounting bracket and covering the through hole, a second linear slide table arranged vertically on the inner side wall of the fixing frame, a seventh telescopic push rod arranged transversely on the slide seat of the second linear slide table, and a second welding gun connected to the output shaft of the seventh telescopic push rod and matched with the through hole.

[0020] The first telescopic push rod, the second telescopic push rod, the third telescopic push rod and the fourth telescopic push rod are all hydraulic telescopic rods, and the fifth telescopic push rod, the sixth telescopic push rod and the seventh telescopic push rod are all electric telescopic rods.

[0021] The bottom side end of the supporting leg is further provided with an extension plate, and the extension plate is further provided with foundation bolts for fixing with the ground. Before welding the tank body, the foundation bolts can be connected with the ground through the extension plate, so as to avoid the welding equipment from deviating and overturning during subsequent welding process; when the welding equipment needs to be moved, the foundation bolts can be separated from the ground.

[0022] Compared with the prior art, the present application has the beneficial effects that: through the first welding auxiliary module, the tank bottom placed on the placing disc can be quickly and conveniently fixed and lifted upward to a high place, through the second welding auxiliary module, the tank body placed on the placing disc can be quickly and conveniently fixed and lifted upward to a high place, and through the third welding auxiliary module, the tank mouth placed on the placing disc can be quickly and stably fixed; through the second welding auxiliary module, the tank body and the tank mouth can be quickly spliced together, through the first welding auxiliary module, the tank bottom and the tank body can be quickly spliced together; through the inner welding module, the welding and fixing of the inside of the connection between the tank body and the tank mouth can be quickly completed, and the welding and fixing of the inside of the connection between the tank body and the tank bottom can be quickly completed; in the case that the second welding auxiliary module is released from the limiting and fixing of the tank body, through the cooperation of the bearing seat, the rotating drum, the placing disc, the welding module and the outer welding module, the welding and fixing of the outside of the connection between the tank body and the tank mouth can be quickly and conveniently completed, and the welding and fixing of the outside of the connection between the tank body and the tank bottom can be quickly and conveniently completed. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a front view sectional structure schematic diagram of the present application;

[0024] Figure 2 It is a top view sectional structure schematic diagram of the first welding auxiliary module of the present application;

[0025] Figure 3 It is a top view sectional structure schematic diagram of the second welding auxiliary module of the present application;

[0026] Figure 4 It is a top view sectional structure schematic diagram of the third welding auxiliary module of the present application;

[0027] Figure 5 It is a structure schematic diagram of the inner welding module of the present application.

[0028] In the diagram: 101, base; 102, support leg; 103, bearing seat; 104, rotating cylinder; 105, turntable; 106, mounting bracket; 107, through hole; 108, extension plate; 109, anchor bolt; 110, tank opening; 111, tank body; 112, tank bottom; 201, first adjusting motor; 202, mounting plate; 203, first telescopic push rod; 204, mounting cylinder; 205, second telescopic push rod; 206, first fixed pressure plate; 20 7. First linear slide; 208. Third telescopic push rod; 209. Second fixed pressure plate; 210. Vertical cylinder; 211. Fourth telescopic push rod; 212. Third fixed pressure plate; 301. Bracket; 302. Fifth telescopic push rod; 303. Second adjusting motor; 304. Sixth telescopic push rod; 305. First welding torch; 306. Through hole; 307. Fixed frame; 308. Second linear slide; 309. Seventh telescopic push rod; 310. Second welding torch. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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.

[0030] like Figure 1 As shown, the welding equipment includes a base 101, a support leg 102 disposed at the bottom of the base 101, a bearing seat 103 disposed at the top of the base 101, a rotating cylinder 104 disposed on the inner side wall of the bearing seat 103, a turntable 105 fixedly sleeved on the top side of the rotating cylinder 104, a U-shaped mounting frame 106 disposed at the top of the base 101 and spanning the turntable 105, a first welding auxiliary module disposed at the top of the mounting frame 106 for lifting and fixing the tank bottom 112 and for rotating drive, a second welding auxiliary module disposed at the side of the mounting frame 106 for lifting and fixing the tank body 111, a third welding auxiliary module disposed on the turntable 105 for limiting and fixing the tank opening 110, a through hole 107 disposed on the base 101 and adapted to the rotating cylinder 104, an inner welding module disposed at the bottom of the base 101, and an outer welding module disposed at the side of the mounting frame 106.

[0031] like Figure 1 , 2As shown, the first welding auxiliary module comprises a first adjusting motor 201 arranged on the top bottom wall of the vertical mounting frame 106, a mounting disc 202 arranged at the lower end of the output shaft of the first adjusting motor 201, a plurality of first telescopic push rods 203 arranged at the bottom of the mounting plate at equal angles, a mounting cylinder 204 arranged at the lower end of the output shaft of the plurality of first telescopic push rods 203, a plurality of second telescopic push rods 205 arranged on the inner side wall of the mounting cylinder 204 at equal angles, and a first fixed pressing plate 206 arranged at the output shaft end of the plurality of second telescopic push rods 205 respectively.

[0032] As shown in Figure 1 , 3 , the second welding auxiliary module comprises a first linear slide 207 arranged on the inner side wall of the left and right side ends of the mounting frame 106, a third telescopic push rod 208 connected transversely to the slide seat of the two first linear slides 207, and a second fixed pressing plate 209 arranged at the output shaft end of the two third telescopic push rods 208 respectively.

[0033] As shown in Figure 1 , 4 , the third welding auxiliary module comprises a vertical cylinder 210 arranged at the top side end of the rotating disc 105, a fourth telescopic push rod 211 arranged at equal angles transversely on the inner side wall of the vertical cylinder 210, and a third fixed pressing plate 212 connected to the output shaft of the plurality of fourth telescopic push rods 211 respectively.

[0034] As shown in Figure 1 , 5 , the inner welding module comprises a U-shaped support 301 arranged at the bottom of the base 101 and located below the through hole 107, a fifth telescopic push rod 302 arranged vertically on the top wall of the bottom of the support 301, a second adjusting motor 303 arranged vertically at the output shaft end of the fifth telescopic push rod 302, a sixth telescopic push rod 304 connected transversely to the output shaft of the second adjusting motor 303, and a first welding gun 305 connected to the output shaft end of the sixth telescopic push rod 304.

[0035] As shown in Figure 1 , the outer welding module comprises a through hole 306 arranged on one side end of the mounting frame 106, a U-shaped fixed frame 307 arranged on the side wall of the mounting frame 106 and covering the through hole 306, a second linear slide 308 arranged vertically on the inner side wall of the fixed frame 307, a seventh telescopic push rod 309 arranged transversely on the slide seat of the second linear slide 308, and a second welding gun 310 connected to the output shaft of the seventh telescopic push rod 309 and matched with the through hole 306. The first telescopic push rod 203, the second telescopic push rod 205, the third telescopic push rod 208, and the fourth telescopic push rod 211 are all hydraulic telescopic rods, and the fifth telescopic push rod 302, the sixth telescopic push rod 304, and the seventh telescopic push rod 309 are all electric telescopic rods.

[0036] As shown in Figure 1 The bottom side end of the support leg 102 is further provided with an extension plate 108, and a foundation bolt 109 is further arranged on the extension plate 108 and used to be fixed with the ground. Before welding the tank body, the foundation bolt 109 can be passed through the extension plate 108 and connected with the ground, so as to avoid the welding equipment from being deviated and overturned in the subsequent welding process; when the welding equipment needs to be moved, the foundation bolt 109 only needs to be separated from the ground.

[0037] A tank body welding production process comprises the following steps: S1, first, the tank bottom 112 is vertically placed on a placing disc in a manner that the opening faces downward, then the output shafts of a plurality of first telescopic push rods 203 are elongated downward by a certain length, so that the mounting cylinder 204 is sleeved outside the middle part of the tank bottom 112, then the output shafts of a plurality of second telescopic push rods 205 are elongated by a certain length, so that a plurality of first fixed pressing plates 206 are abutted against the outer side wall of the tank bottom 112 to fix the tank bottom 112, then the output shafts of the first telescopic push rods 203 are shortened upward by a certain length, so that the tank bottom 112 is lifted up; the tank body 111 is vertically placed on the placing disc, then the sliding seats of two first linear sliding tables 207 are synchronously moved downward by a certain distance, so that two second fixed pressing plates 209 are moved to the outside of the middle part of the tank body 111, then the output shafts of two third telescopic push rods 208 are elongated by a certain length, so that the two second fixed pressing plates 209 are abutted against the outer side wall of the tank bottom 112 to fix the tank body 111, then the sliding seats of the two first linear sliding tables 207 are synchronously moved upward, so that the tank body 111 is lifted up; the tank opening 110 is placed on the placing disc, then the output shafts of a plurality of fourth telescopic push rods 211 are elongated by a certain length, so that a plurality of third fixed pressing plates 212 are abutted against the outer side wall of the tank opening 110 to fix the tank opening 110;

[0038] S2, the sliding seats of two second linear sliding tables 308 are synchronously moved downward by a certain distance, so that the tank body 111 is moved downward by a certain distance, so that the bottom of the tank body 111 is spliced together with the top of the tank opening 110, then the output shafts of the first telescopic push rods 203 are elongated downward by a certain length, so that the tank bottom 112 is moved downward by a certain distance, so that the lower end of the tank bottom 112 is spliced together with the top of the tank body 111;

[0039] S3, the output shaft of the fifth telescopic push rod 302 is elongated upward by a certain length, so that the vertical height of the first welding gun 305 is adapted to the joint of the tank body 111 and the tank mouth 110, then the output shaft of the sixth telescopic push rod 304 is elongated by a certain length, so that the first welding gun 305 is in contact with the inner side wall of the joint of the tank body 111 and the tank mouth 110, then the first welding gun 305 is started to weld the corresponding position of the inner side wall of the joint of the tank body 111 and the tank mouth 110, then the output shaft of the second adjusting motor 303 is rotated to drive the first welding gun 305 to rotate along the inner side wall of the joint of the tank body 111 and the tank mouth 110, so as to complete the welding treatment of the whole area of the inner side wall of the joint of the tank body 111 and the tank mouth 110; then the second adjusting motor 303 is paused, and the output shaft of the sixth telescopic push rod 304 is shortened by a certain length, so that the first welding gun 305 is horizontally reset, and the first welding gun 305 is paused; then the output shaft of the sixth telescopic push rod 304 is elongated upward by a certain length, so that the vertical height of the first welding gun 305 is adapted to the joint of the tank body 111 and the tank bottom 112, then the output shaft of the sixth telescopic push rod 304 is elongated by a certain length, so that the first welding gun 305 is in contact with the inner side wall of the joint of the tank body 111 and the tank bottom 112, then the first welding gun 305 is started to weld the corresponding position of the inner side wall of the joint of the tank body 111 and the tank bottom 112, then the output shaft of the second adjusting motor 303 is rotated to drive the first welding gun 305 to rotate along the inner side wall of the joint of the tank body 111 and the tank bottom 112, so as to complete the welding treatment of the whole area of the inner side wall of the joint of the tank body 111 and the tank bottom 112; then the second adjusting motor 303 is paused, and the output shaft of the sixth telescopic push rod 304 is shortened by a certain length, so that the first welding gun 305 is horizontally reset, and the first welding gun 305 is paused, and then the output shaft of the fifth telescopic push rod 302 is shortened by a certain length, so that the first welding gun 305 is vertically reset and returns to the lower side of the tank mouth 110;

[0040] S4, the output shaft of the two third telescopic push rods 208 is shortened by a certain length, so that the second fixed pressing plate 209 is away from the outer side wall of the tank body 111 and is horizontally reset, thereby releasing the limiting fixing of the tank body 111; then the sliding seat of the second linear slide 308 is vertically moved, so that the vertical position of the second welding gun 310 is matched with the outer end of the connection between the tank body 111 and the tank mouth 110, then the output shaft of the seventh telescopic push rod 309 is lengthened by a certain length, so that the second welding gun 310 passes through the through hole 306 and contacts the outer end of the connection between the tank body 111 and the tank mouth 110, then the second welding gun 310 is started, and the corresponding positions of the outer side wall of the splicing part of the tank body 111 and the tank mouth 110 are welded, then the output shaft of the first adjusting motor 201 is rotated, so that the tank bottom 112, the tank body 111 and the tank mouth 110 drive the outer side wall of the splicing part of the tank body 111 and the tank mouth 110 to rotate under the cooperation of the bearing seat 103, the rotating drum 104 and the placing disc, so that the second welding gun 310 completes the welding treatment of the whole area of the outer side wall of the splicing part of the tank body 111 and the tank mouth 110; then the first adjusting motor 201 is paused, the output shaft of the seventh telescopic push rod 309 is shortened by a certain length, so that the second welding gun 310 is horizontally reset, and the second welding gun 310 is paused; then the sliding seat of the second linear slide 308 is moved upward by a certain distance, so that the vertical height of the second welding gun 310 is matched with the splicing part of the tank body 111 and the tank bottom 112, then the output shaft of the seventh telescopic push rod 309 is lengthened by a certain length, so that the second welding gun 310 passes through the through hole 306 and contacts the outer side wall of the splicing part of the tank body 111 and the tank bottom 112, then the second welding gun 310 is started, and the corresponding positions of the outer side wall of the splicing part of the tank body 111 and the tank bottom 112 are welded, then the output shaft of the second adjusting motor 303 is rotated, so that the tank bottom 112, the tank body 111 and the tank mouth 110 drive the outer side wall of the splicing part of the tank body 111 and the tank mouth 110 to rotate under the cooperation of the bearing seat 103, the rotating drum 104 and the placing disc, so that the second welding gun 310 completes the welding treatment of the whole area of the inner side wall of the splicing part of the tank body 111 and the tank bottom 112; then the first adjusting motor 201 is paused, the output shaft of the seventh telescopic push rod 309 is shortened by a certain length, so that the second welding gun 310 is horizontally reset, and the second welding gun 310 is paused, then the output shaft of the seventh telescopic push rod 309 is shortened by a certain length, so that the second welding gun 310 is vertically reset, and the outer side of the mounting frame 106; in this way, the welding and fixing of the inner and outer sides of the connection of the tank body can be completed;

[0041] S5, the output shaft of the plurality of second telescopic push rods 205 is shortened by a certain length, the plurality of first fixed pressing plates 206 are away from the outer side wall of the tank bottom 112, the limiting fixing of the tank bottom 112 is released, then the output shaft of the plurality of fifth telescopic push rods 302 is shortened by a certain length, the plurality of third fixed pressing plates 212 are away from the outer side wall of the tank mouth 110, the limiting fixing of the tank mouth 110 is released, and then the welded tank body can be removed from the turntable 105

[0042] The above is the preferred embodiment of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, which should be considered as the protection scope of the present application.

Claims

1. A tank welding production process, characterized in that: The tank body is welded using welding equipment; The welding equipment includes a base (101), support legs (102) at the bottom of the base (101), a bearing seat (103) at the top of the base (101), a rotating cylinder (104) on the inner wall of the bearing seat (103), a turntable (105) fixedly sleeved on the top side of the rotating cylinder (104), a U-shaped mounting bracket (106) at the top of the base (101) and spanning the turntable (105), and a device at the top of the mounting bracket (106) for lifting the bottom of the tank (112). The first welding auxiliary module is fixed and rotated, the second welding auxiliary module is set on the side of the mounting frame (106) and used to lift and fix the tank body (111), the third welding auxiliary module is set on the turntable (105) and used to limit and fix the tank opening (110), the through hole (107) is set on the base (101) and adapted to the rotating cylinder (104), the inner welding module is set at the bottom of the base (101), and the outer welding module is set on the side of the mounting frame (106); The tank body includes the opening (110), the body (111), and the bottom (112); The tank welding process includes the following steps: S1, First, place the bottom (112) of the can vertically onto the turntable (105) with the opening facing down, fix the bottom (112) of the can using the first welding auxiliary module, and lift the bottom (112) of the can; Next, place the body (111) of the can vertically onto the turntable (105), fix the body (111) of the can using the second welding auxiliary module, and lift the body (111) of the can; After that, place the mouth (110) of the can vertically onto the turntable (105), and fix the mouth (110) of the can using the third welding auxiliary module; S2, causing the second welding auxiliary module to move the tank body (111) downward a certain distance, and causing the bottom of the tank body (111) to be spliced ​​with the top of the tank opening (110). Then, the first welding auxiliary module causes the tank bottom (112) to move downward a certain distance, and causes the lower end of the tank bottom (112) to be spliced ​​with the top of the tank body (111). S3, the inner end of the connection between the tank body (111) and the tank opening (110) is welded and fixed using the inner welding module, and then the inner end of the connection between the tank body (111) and the tank bottom (112) is welded and fixed using the inner welding module, thereby completing the internal welding and fixing of the tank body splice. S4, the second welding auxiliary module releases its limiting fixation on the tank body (111), and then the outer welding module moves to the position where it connects with the outer end of the connection between the tank body (111) and the tank opening (110), and begins welding at the corresponding position. At the same time, the first welding auxiliary module drives the tank bottom (112), tank body (111), and tank opening (110) to rotate synchronously, so that the outer welding module completes the welding and fixing of all positions at the outer end of the connection between the tank body (111) and the tank opening (110). Then the first welding... The auxiliary module pauses the rotation adjustment of the tank body; causing the outer welding module to move to a position that matches the connection between the tank body (111) and the tank bottom (112), and begins to weld and fix the corresponding parts. At the same time, the first welding auxiliary module drives the tank bottom (112), tank body (111), and tank opening (110) to rotate synchronously, so that the outer welding module completes the welding and fixing of all positions at the outer end of the connection between the tank body (111) and the tank bottom (112); thus, the welding and fixing of the inner and outer sides of the connection of the tank body can be completed. S5, then the first welding auxiliary module and the third welding auxiliary module can release the limiting and fixing of the tank, and then the welded tank can be removed from the turntable (105).

2. The tank welding production process as described in claim 1, characterized in that: The first welding auxiliary module includes a first adjusting motor (201) on the top bottom wall of the vertical mounting frame (106), a mounting plate (202) set at the lower end of the output shaft of the first adjusting motor (201), a plurality of first telescopic push rods (203) set at equal angles at the bottom of the mounting plate, a mounting cylinder (204) set at the lower end of the output shaft of the plurality of first telescopic push rods (203), a plurality of second telescopic push rods (205) set at equal angles on the inner side wall of the mounting cylinder (204), and a first fixing pressure plate (206) respectively set at the end of the output shaft of the plurality of second telescopic push rods (205).

3. The tank welding production process as described in claim 2, characterized in that: The second welding auxiliary module includes a first linear slide (207) disposed on the inner sidewall of the left and right sides of the mounting bracket (106), a third telescopic push rod (208) that is laterally connected to the slide of the two first linear slides (207) respectively, and a second fixed pressure plate (209) disposed at the output shaft end of the two third telescopic push rods (208) respectively.

4. The tank welding production process as described in claim 3, characterized in that: The third welding auxiliary module includes a vertical cylinder (210) set at the top side of the turntable (105), a fourth telescopic push rod (211) set at equal angles on the inner wall of the vertical cylinder (210), and a third fixed pressure plate (212) connected to the output shafts of the multiple fourth telescopic push rods (211).

5. The tank welding production process as described in claim 4, characterized in that: The internal welding module includes a U-shaped bracket (301) located at the bottom of the base (101) and below the through hole (107), a fifth telescopic push rod (302) vertically mounted on the top wall of the bottom of the bracket (301), a second adjusting motor (303) vertically mounted at the end of the output shaft of the fifth telescopic push rod (302), a sixth telescopic push rod (304) horizontally connected to the output shaft of the second adjusting motor (303), and a first welding torch (305) connected to the end of the output shaft of the sixth telescopic push rod (304).

6. The tank welding production process as described in claim 5, characterized in that: The external welding module includes a through hole (306) on one side of the mounting bracket (106), a U-shaped fixing bracket (307) on the side wall of the mounting bracket (106) and covering the through hole (306), a second linear slide (308) vertically arranged on the inner side wall of the fixing bracket (307), a seventh telescopic push rod (309) horizontally arranged on the slide of the second linear slide (308), and a second welding gun (310) connected to the output shaft of the seventh telescopic push rod (309) and adapted to the through hole (306).

7. The tank welding production process as described in claim 6, characterized in that: The first telescopic push rod (203), the second telescopic push rod (205), the third telescopic push rod (208) and the fourth telescopic push rod (211) are all hydraulic telescopic rods, and the fifth telescopic push rod (302), the sixth telescopic push rod (304) and the seventh telescopic push rod (309) are all electric telescopic rods.

8. The tank welding production process according to any one of claims 1-7, characterized in that: The bottom side of the support leg (102) is also provided with an extension plate (108), and the extension plate (108) is also provided with anchor bolts (109) for fixing to the ground.

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