Fermentation tank welding device and welding method

Abstract

The invention discloses a fermentation tank welding device and a welding method. Relates to the field of fermentation tank production equipment. Comprising a base and a welding gun mechanism, two sliding plates are arranged on the base, and a clamping mechanism and a driving mechanism are arranged on each sliding plate; the clamping mechanism comprises a suction cup and a plurality of positioning seats, a mounting plate is arranged at the top of the sliding plate, a rotating disc is arranged at the vertical end of the mounting plate, the suction cup is arranged on the rotating disc, the transverse end of the mounting plate and the top of the sliding plate are each provided with at least one positioning seat, and the suction cup is used for adsorbing the end socket. The plurality of positioning seats are used for clamping a can body; a clamping groove is formed in the positioning seat, a limiting rod is arranged in the clamping groove in a penetrating mode, and the outer wall of the limiting rod is attached to the outer wall of the tank body and the outer wall of the end socket; the driving mechanism is used for driving the tank body to rotate, and the welding gun mechanism is used for welding the tank body and the end socket. According to the welding gun, the end socket and the tank body can be in a coaxial state, and the welding precision of the welding gun body on the end socket and the tank body is improved.

Description

Technical Field

[0001] The present application relates to the field of fermentation tank production equipment, and in particular to a fermentation tank welding device and a welding method. Background Art

[0002] Fermentation tank is a kind of reaction equipment widely used in microbial growth and fermentation process. It can not only be used for microbial growth, but also play a role in many industries such as pharmaceuticals, monosodium glutamate, brewing, enzyme preparations, pigments, enzymes, etc. Especially in the fermentation process of dairy products and wine, the fermentation tank adopts an aseptic system to ensure the aseptic and pollution-free fermentation process, thereby greatly extending the shelf life of the product. In the production process of the fermentation tank, the welding operation of the head and the barrel of the fermentation tank will be included, that is, a head is welded at both ends of the barrel to form the main structure of the fermentation tank.

[0003] A Chinese patent document with announcement number CN221087840U discloses a metal tank head welding tool, and specifically discloses a base, on which are provided two symmetrically arranged circumferential positioning devices, both of which are provided with height positioning devices adjustable along their height directions, and a preheating and cleaning device is provided at a position close to the welding point of the metal tank body on any height positioning device, and a rotating device is provided at a position between the two circumferential positioning devices on the base. The utility model can drive the metal tank body and the head to rotate together by starting the rotating device, thereby changing the welding position, thereby welding the connection position and improving the welding quality.

[0004] However, the circumferential positioning device in the above patent has a better fixing effect on the cylinder body, but a poor fixing effect on the head with a circular arc surface, which can easily cause misalignment between the cylinder body and the head, thereby reducing the welding accuracy. Summary of the invention

[0005] In order to overcome the deficiencies of the prior art, the present application provides a fermentation tank welding device and a welding method.

[0006] In a first aspect, the present application provides a fermentation tank welding device, which adopts the following technical solution:

[0007] A fermentation tank welding device comprises a base and a welding gun mechanism, wherein the base is provided with two slides, each of which is provided with a clamping mechanism and a driving mechanism; the clamping mechanism comprises a suction cup and a plurality of positioning seats, the top of the slide is provided with an L-shaped mounting plate, the vertical end of the mounting plate is provided with a turntable, the suction cup is arranged on the turntable, the horizontal end of the mounting plate and the top of the slide are provided with at least one positioning seat, the suction cup is used to adsorb the head, and the plurality of positioning seats are used to clamp the can body; a clamping groove is provided on the positioning seat, the clamping groove extends along the axial direction of the can body and passes through the positioning seat, a limiting rod is passed through the clamping groove, the outer wall of the limiting rod is in contact with the outer wall of the can body and the outer wall of the head; the driving mechanism is used to drive the can body to rotate, and the welding gun mechanism is used to weld the can body and the head.

[0008] By adopting the above technical solution, when the can body is placed on the driving mechanism, a plurality of positioning seats will clamp the can body, and the suction cup will adsorb the head, so that the can body and the head are in a reliable clamping state. Furthermore, by sliding the limiting rod into the limiting hole, the limiting effect of the limiting rod on the head can be achieved, and one end of the limiting rod fits the can body, and the other end of the limiting rod fits the head, which improves the concentricity between the head and the can body and effectively improves the welding accuracy.

[0009] Optionally, two slide grooves are provided on the base, and a screw rod is provided in each of the two slide grooves. The two screw rods are arranged in parallel and pass through the two slides; one slide is connected to one screw rod by a thread and is slidably connected to the other screw rod, and the other slide is connected to the other screw rod by a thread and is slidably connected to the other screw rod. Two driving motors are provided on the side wall of the base, and the two driving motors drive the two screw rods to rotate respectively and one by one.

[0010] By adopting the above technical solution, when one driving motor drives its corresponding screw to rotate, a slide plate connected to the screw by a thread will be displaced, while another slide plate connected to the screw by a sliding connection will remain stationary. Similarly, when another driving motor drives its corresponding screw to rotate, another slide plate connected to the screw by a thread will be displaced, while another slide plate connected to the screw by a sliding connection will remain stationary. In this way, by controlling the two driving motors, the positions of the two slides can be reliably adjusted, ensuring that the clamping and welding operations can be carried out reliably.

[0011] Optionally, the driving mechanism includes two support seats, each of which is provided with a roller, and the two rollers are in contact with the outer wall of the can body. The support seat is also provided with a motor, and the motor is used to drive the rollers to rotate. The outer surface of the roller is provided with a rubber layer, and the rubber layer is used to increase the friction between the roller and the can body; the welding gun mechanism includes a welding gun body, a mounting seat and a linear slide, the mounting seat is arranged on the outside of the base, the linear slide is arranged on the top of the mounting seat, the welding gun body is installed on the linear slide, and the linear slide is used to drive the welding gun body to reciprocate in the vertical direction.

[0012] By adopting the above technical solution, when the sealing head and the can body are connected, the motor starts to work. Since the can body is covered and pressed on the top of the roller, a large friction force can be formed between the roller and the can body. In this way, after the motor drives the roller to rotate, the roller can drive the can body to rotate, and the sealing head is connected to the suction cup, which is set on the turntable. When the can body rotates, the sealing head can maintain a synchronous rotation state with the can body under the drive of the turntable, which enables the welding gun body to reliably weld the can body and the sealing head.

[0013] Optionally, an arcuate surface is provided on one side of the top of the positioning seat, the arcuate surface is adapted to and fits with the outer wall of the can body, the slot is connected to the arcuate surface, a plurality of limiting holes are provided on the turntable, the limiting holes correspond to the slots one by one and are coaxially arranged, the limiting rod can slide in the slot and be inserted into the limiting hole, and the limiting rod and the roller are staggered.

[0014] By adopting the above technical solution, the positioning seat and the slide plate are detachably connected. In this way, positioning seats with different curvatures can be selected according to different sizes of can bodies to ensure that the curved surface can fit reliably with the outer wall of the can body, thereby improving the clamping stability of the can body by several positioning seats, and also helping to improve the concentricity between the can body and the head.

[0015] Optionally, a limit rod corresponding to one of the skateboards is provided with a threaded rod on its end face facing the other skateboard, and a limit rod corresponding to the other skateboard is provided with a through hole and a receiving groove that are interconnected on one end facing the one skateboard, and the threaded rod can pass through the through hole to pass into the receiving groove; a pair of vertical plates are provided in the receiving groove, and a bearing is provided on each of the pair of vertical plates, a threaded sleeve is provided between the two bearings, and the threaded sleeve can rotate between the pair of bearings, and the threaded rod can be adaptively screwed into the threaded sleeve after passing through the receiving groove.

[0016] By adopting the above technical solution, the limit rod is used to limit the head and the can body at the same time. When the overall length of the can body is relatively long, the length of the limit rod may not be enough to contact the head and the can body at the same time. At this time, the limit rod on the other slide can be directed toward the limit rod that needs to be extended. When the two limit rods are gradually connected, the threaded rod will be inserted into the through hole and contact the threaded sleeve. Then, while pushing the limit rod, the threaded sleeve is rotated, so that the threaded rod can be screwed into the inner side of the threaded sleeve. In this way, when the two limit rods are connected, they will be in a mutually locked state. While extending the length of the limit rod, the connection strength of the two limit rods is maximized, ensuring that the two limit rods can reliably limit the head and the can body at the same time.

[0017] Optionally, the surface of the threaded sleeve is provided with a knurling pattern, the outer diameter of the threaded sleeve is smaller than the depth of the accommodating groove, the threaded sleeve, the perforation and the threaded rod are coaxially arranged, and the accommodating groove is arranged at the top of the limiting rod or the bottom of the limiting rod.

[0018] By adopting the above technical solution, it is convenient for the staff to quickly rotate the threaded sleeve, thereby increasing the speed at which the threaded rod is screwed into the threaded sleeve, and also increasing the connection speed between the two limit rods.

[0019] Optionally, a lock plate is provided on the side wall of the positioning seat, a lock rod is passed through the lock plate, a handle is provided on one end surface of the lock rod, the other end of the lock rod passes through the lock plate and is provided with a pressure plate, the pressure plate is arranged parallel to the lock plate and can slide on the lock rod, and a spring is also sleeved on the lock rod, and the spring is located between the lock plate and the pressure plate; a plurality of lock holes are provided on the side of the limit rod facing the positioning seat, and the plurality of lock holes are arranged at intervals along the length direction of the lock rod, and the lock rod can be inserted into any of the lock holes.

[0020] By adopting the above technical solution, after pulling the locking rod in the direction away from the limit rod, the locking rod will be pulled out of the locking hole. At this time, the limit rod can be reliably moved. When the limit rod is inserted into the limit hole, the handle is released. Under the action of the spring force, the locking rod will be inserted into the corresponding locking hole again, thereby realizing the locking operation of the limit rod and preventing the limit rod from moving during the rotation of the can body and affecting the limiting effect on the head and the can body.

[0021] Optionally, the locking plate and the positioning seat are an integrally formed structure, the handle faces the outside of the can body, and when the locking rod is inserted into the locking hole, the pressure plate presses against the outer wall of the limiting rod and the spring is in an incompletely compressed state, and the locking hole and the accommodating groove are arranged on different side walls of the limiting rod.

[0022] By adopting the above technical solution, when the locking rod is inserted into the lock hole, the spring still has a certain elastic force on the pressure plate, which enables the pressure plate to press against the outer wall of the limit rod, thereby improving the locking effect of the limit rod through the pressure between the pressure plate and the limit rod.

[0023] Optionally, the vertical end of the mounting plate is retractable, and when the mounting plate is retracted in the vertical direction, the limiting rod is located outside the limiting hole.

[0024] By adopting the above technical solution, the vertical end of the mounting plate rises in the vertical direction, which expands the operating space, so that the can body can be more quickly prevented from being placed on the driving mechanism and clamped by a plurality of positioning seats, thereby significantly improving the overall work efficiency.

[0025] In a second aspect, the present application provides a fermentation tank welding method, which adopts the following technical solution:

[0026] A fermentation tank welding method comprises the following steps:

[0027] S1. Use the crane to lift the end cap to be welded downward to between the two clamping mechanisms, then lift the end cap horizontally until it fits with the suction cup, then slide the limit rod on the positioning seat into the limit hole and adjust the position of the end cap, and finally the suction cup starts to work and adsorbs the end cap;

[0028] S2. The can body to be welded is lifted downward to between the two clamping mechanisms by a crane, and the positions of the two slides are adjusted so that the positioning seats on the slides can clamp the can body. Finally, the positions of the slides are fine-tuned so that the can body and the head are butted against each other.

[0029] S3, the two slides move synchronously until the joint between the head and the tank body is located outside the welding gun body;

[0030] S4. The motor drives the roller to rotate, and the welding gun body starts to weld the welding point between the head and the tank body. When the tank body rotates one circle, the welding is completed.

[0031] By adopting the above technical solution, the concentricity between the head and the tank body can be improved, thereby improving the welding accuracy.

[0032] Compared with the prior art, this application has the following beneficial effects:

[0033] 1. In the process of clamping the head and the can body, by sliding the limit rod, one end of the limit rod can contact the outer wall of the head, and the other end of the limit rod can contact the outer wall of the can body. In this way, the head and the can body can be in a coaxial state, which improves the welding accuracy of the welding gun body to the head and the can body.

[0034] 2. During the welding process, the driving mechanism drives the can body to rotate, and the sealing head is set on the turntable through the suction cup. This allows the sealing head to rotate synchronously after the can body rotates, while the welding gun body can be in a relatively static state, thereby reducing the difficulty of welding, improving the stability of the welding process, and improving the welding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the present application. Figure 1 ;

[0036] Figure 2 It is a schematic diagram of the present application. Figure 2 ;

[0037] Figure 3 is a schematic stereogram of a clamping mechanism and a driving mechanism;

[0038] Figure 4 It is a reference diagram of the assembly status of the clamping mechanism and the driving mechanism;

[0039] Figure 5 This is a reference diagram of the assembly status of the limit rod and the positioning seat;

[0040] Figure 6 It is the reference diagram of the explosion state of the limit rod;

[0041] In the figure: 1. base; 11. slide; 12. screw; 13. drive motor; 2. welding gun mechanism; 21. welding gun body; 22. mounting seat; 23. linear slide; 3. slide plate; 4. clamping mechanism; 41. suction cup; 42. positioning seat; 421. slot; 422. arc surface; 423. locking plate; 424. locking rod; 425. handle; 426. pressure plate; 427. spring; 43. mounting plate; 44. turntable; 440. limiting hole; 45. limiting rod; 451. threaded rod; 452. through hole; 453. receiving groove; 454. vertical plate; 455. bearing; 456. threaded sleeve; 457. locking hole; 5. driving mechanism; 51. supporting seat; 52. roller; 53. motor; 6. head; 7. tank body. DETAILED DESCRIPTION

[0042] Below, combined with the attached Figure 1-6 As well as specific implementation methods, the present application is further described. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0043] This embodiment provides a fermentation tank welding device.

[0044] Figure 1 It is a schematic diagram of the present application. Figure 1 , Figure 2It is a schematic diagram of the present application. Figure 2 See also Figure 1 and Figure 2 A fermentation tank welding device includes a base 1 and a welding gun mechanism 2. The base 1 is provided with two slide plates 3 and two slide grooves 11. A screw rod 12 is provided in each of the two slide grooves 11. Two driving motors 13 are provided on the side wall of the base 1. The two driving motors 13 can respectively drive the corresponding screw rods 12 to rotate in the slide grooves 11. The slide plate 3 is arranged on the top of the base 1, and the lower part of the slide plate 3 will extend into the two slide grooves 11, so that the two screw rods 12 will pass through the two slide plates 3. One slide plate 3 is connected to one screw rod 12 by threading and is slidably connected to another screw rod 12, and another slide plate 3 is connected to another screw rod 12 by threading and is slidably connected to one screw rod 12. In this way, when a driving motor 13 drives the corresponding screw rod 12 to rotate, one slide plate 3 connected to the screw rod 12 by threading can slide along the extension direction of the screw rod 12, and the other slide plate 3 connected to the screw rod 12 by sliding can remain in a static state. Similarly, when another driving motor 13 drives the corresponding screw rod 12 to rotate, the other slide plate 3 will slide on the base 1, while one slide plate 3 is in a static state. That is to say, under the drive of the driving motor 13, the two slide plates 3 can be in an independent motion state, which also realizes that the two slide plates 3 can move in the same direction or move toward each other. Each slide plate 3 is provided with a clamping mechanism 4 and a driving mechanism 5. When clamping the head 6 and the can body 7, the two slide plates 3 can be driven away from each other, so as to facilitate the lifting of the head 6 and the can body 7 and improve the clamping efficiency.

[0045] Figure 3 It is a schematic three-dimensional diagram of the clamping mechanism and the driving mechanism. Figure 4 This is a reference diagram of the assembly status of the clamping mechanism and the driving mechanism. Figure 3 and Figure 4 Combined with Figure 2The clamping mechanism 4 includes a suction cup 41 and a plurality of positioning seats 42. An L-shaped mounting plate 43 is provided on the top of the slide plate 3. The vertical end of the mounting plate 43 is retractable, that is, the height of the vertical end of the mounting plate 43 is adjustable. A turntable 44 is provided on the vertical end of the mounting plate 43. The suction cup 41 is provided on the turntable 44. At least one positioning seat 42 is provided on the horizontal end of the mounting plate 43 and the top of the slide plate 3. The suction cup 41 can adsorb the end cap 6 so that the end cap 6 is in a preliminary fixed state. The plurality of positioning seats 42 are symmetrically distributed on the outside of the can body 7. At the same time, the positioning seat 42 is provided with an arc surface 422 on the side facing the can body 7. The arc surface 422 is adapted to and fits the outer wall of the can body 7. When the can body 7 is hoisted between the plurality of positioning seats 42, the plurality of positioning seats 42 can form a clamping effect on the can body 7. A slot 421 is provided on the positioning seat 42, and the slot 421 is communicated with the arc surface 422. The slot 421 extends along the axial direction of the can body 7 and passes through the positioning seat 42. A limiting rod 45 is passed through the slot 421. A plurality of limiting holes 440 are provided on the turntable 44. The plurality of limiting holes 440 correspond to the plurality of slots 421 one by one and are coaxially arranged. The outer wall of the limiting rod 45 fits with the outer wall of the can body 7 and the outer wall of the head 6.

[0046] During the clamping process, the can body 7 can be placed between several positioning seats 42 first. At this time, the outer wall of the limit rod 45 is in contact with the can body 7, and the limit rod 45 cannot fall off from the slot 421. Then, the limit rod 45 is moved in the direction away from the turntable 44, so that the horizontal end of the mounting plate 43 and the slide plate 3 are in an open state, and the head 6 can be placed between the suction cup 41 and the can body 7. At this time, the limit rod 45 is reset, and then the suction cup 41 releases the head 6, and the limit rod 45 is inserted into the corresponding limit hole 440. At this time, the limit rod 45 can play a role in correcting the deviation of the head 6, that is, several limit rods 45 will form a limiting effect on the head 6 and the can body 7. Finally, the suction cup 41 adsorbs the head 6 again, so that the head 6 can be reliably and accurately docked with the can body 7. Specifically, one end of the limiting rod 45 contacts the outer wall of the head 6, and the other end of the limiting rod 45 contacts the outer wall of the tank body 7. In this way, when the straightness of the limiting rod 45 is calibrated, the head 6 and the tank body 7 can be in a coaxial state, that is, in a state to be welded.

[0047] Figure 5 This is the reference diagram of the assembly status of the limit rod and the positioning seat. Figure 6 This is a reference diagram of the explosion state of the limit rod. Figure 5 and Figure 6 Combined with Figure 2The limiting rod 45 corresponding to one slide plate 3 is provided with a threaded rod 451 on one end face facing the other slide plate 3, and the limiting rod 45 corresponding to the other slide plate 3 is provided with a through hole 452 and a receiving groove 453 which are connected to each other on one end face facing the one slide plate 3, and the threaded rod 451 can penetrate into the receiving groove 453 through the through hole 452. That is to say, one limiting assembly is provided on one slide plate 3, and another limiting assembly is provided on the other slide plate 3, and the two limiting assemblies are composed of a plurality of limiting rods 45 with the same number and opposite positions, and the limiting rod 45 in one limiting assembly is provided with a threaded rod 451 on one end face facing the other limiting assembly, and the limiting rod 45 in the other limiting assembly is provided with a through hole 452 on one end face facing the one limiting assembly, and the outer wall of the limiting rod 45 in the other limiting assembly is also provided with a receiving groove 453, and the receiving groove 453 and the through hole 452 are in a state of being connected to each other. Furthermore, a pair of vertical plates 454 are provided in the accommodating groove 453, and a bearing 455 is provided on each of the pair of vertical plates 454. A threaded sleeve 456 is provided between the two bearings 455, and the threaded sleeve 456 can rotate between the pair of bearings 455. The surface of the threaded sleeve 456 is provided with a knurled pattern, and the outer diameter of the threaded sleeve 456 is smaller than the depth of the accommodating groove 453. The threaded sleeve 456, the through hole 452 and the threaded rod 451 are coaxially arranged. In this way, when the two corresponding limit rods 451 in the two limit assemblies are When the two limit rods 45 are butted against each other, the threaded rod 451 will pass through the through hole 452 into the receiving groove 453 and abut against the end of the threaded sleeve 456. At this time, by pushing the limiting rod 45 with the threaded rod 451 and rotating the threaded sleeve 456, the threaded rod 451 can be inserted into the inner side of the threaded sleeve 456. After the two limit rods 45 are butted against each other, the cooperation of the threaded sleeve 456 and the threaded rod 451 can realize the locking effect of the two limit rods 45, ensuring that the two limit rods 45 can be reliably connected. When the two limit rods 45 are connected, the length of the limit rods 45 that play a limiting role is extended. In this way, when the length of the can body 7 is large and the positioning seat 42 is far away from the turntable 44, the two limit rods 45 can be connected, and the connected limit rods 45 are moved toward the head 6 to be welded and inserted into the limit hole 440. In this way, it is ensured that the limit rods 45 can be suitable for can bodies 7 of different sizes, thereby ensuring that the welding effect of the head 6 and the can body 7 is reliable.

[0048] See 2 and Figure 5A locking plate 423 is provided on the side wall of the positioning seat 42, and the locking plate 423 and the positioning seat 42 are an integrally formed structure. A locking rod 424 is passed through the locking plate 423, and a handle 425 is provided on one end surface of the locking rod 424. The other end of the locking rod 424 passes through the locking plate 423 and is provided with a pressing plate 426. The pressing plate 426 is arranged parallel to the locking plate 423 and can slide on the locking rod 424. A spring 427 is also sleeved on the locking rod 424, and the spring 427 is located between the locking plate 423 and the pressing plate 426. A plurality of locking holes 457 are provided on the side of the limiting rod 45 facing the positioning seat 42, and the plurality of locking holes 457 are arranged at intervals along the length direction of the locking rod 424, and the locking rod 424 can be inserted into any locking hole 457. The handle 425 faces the outside of the tank body 7. When the locking rod 424 is inserted into the locking hole 457, the locking rod 424 can play a role in locking the limiting rod 45, ensuring that the limiting rod 45 will not move in the welding process. In this way, it is ensured that the limiting rod 45 can maintain a state of being in contact with the head 6 and the tank body 7 at the same time, and it is also ensured that the limiting effect of the limiting rod 45 on the head 6 and the tank body 7 is reliable. When it is necessary to adjust the position of the limiting rod 45, the handle 425 is pulled in a direction away from the limiting rod 45, and the locking rod 424 is moved to the outside of the locking hole 457. Further, when the locking rod 424 is in a state of locking the limiting rod 45, the pressing plate 426 presses against the outer wall of the limiting rod 45 and the spring 427 is in an incompletely compressed state. In this way, the locking effect of the limiting rod 45 is further improved through the pressing effect of the pressing plate 426 on the limiting rod 45. The locking hole 457 and the accommodating groove 453 are arranged on different side walls of the limiting rod 45, and the accommodating groove 453 is arranged at the top of the limiting rod 45 or the bottom of the limiting rod 45. In this way, the threaded sleeve 456 is closer to the staff, which makes it convenient for the staff to rotate the threaded sleeve 456, thereby realizing the docking of the two limiting rods 45. At the same time, the accommodating groove 453 of the locking hole 457 is staggered on the limiting rod 45, so that the locking operation between the two limiting rods 45 and the locking operation of the limiting rod 45 by the locking rod 424 do not interfere with each other.

[0049] See also Figure 2 and Figure 3 The driving mechanism 5 includes two supporting seats 51, each supporting seat 51 is provided with a roller 52, and the two rollers 52 are both in contact with the outer wall of the can body 7. The supporting seat 51 is also provided with a motor 53, and the motor 53 is used to drive the roller 52 to rotate. The outer surface of the roller 52 is provided with a rubber layer, and the rubber layer is used to increase the friction between the roller 52 and the can body 7. In this way, after the head 6 and the can body 7 are docked, the motor 53 is started and the roller 52 is driven to rotate. In this way, the friction between the roller 52 and the can body 7 can drive the can body 7 to rotate, and the head 6 is connected to the turntable 44. When the head 6 and the can body 7 are firmly docked, the head 6 can rotate synchronously with the can body 7.

[0050] See also Figure 2 The welding gun mechanism 2 includes a welding gun body 21, a mounting seat 22 and a linear slide 23. The mounting seat 22 is arranged on the outside of the base 1, and the linear slide 23 is arranged on the top of the mounting seat 22. The welding gun body 21 is installed on the linear slide 23, and the linear slide 23 is used to drive the welding gun body 21 to move back and forth in the vertical direction. Before the driving mechanism 5 drives the tank body 7, the sliding of the slide plate 3 and the driving of the linear slide 23 on the welding gun body 21 enable the welding gun body 21 to move to the joint between the head 6 and the tank body 7. At this time, the motor 53 and the welding gun body 21 start working at the same time, so that the welding of the head 6 and the tank body 7 can be completed while the welding gun body 21 remains stationary, avoiding the frequent adjustment of the position of the welding gun body 21 to reduce the welding accuracy, and also reducing the welding difficulty to the greatest extent.

[0051] This embodiment also provides a fermentation tank welding method.

[0052] A fermentation tank welding method comprises the following steps:

[0053] S1. The end cap 6 to be welded is lifted downward to between the two clamping mechanisms 4 by a crane, and then the end cap 6 is lifted horizontally to a state where it fits with the suction cup 41, and then the limiting rod 45 on the positioning seat 42 is slid into the limiting hole 440 and the position of the end cap 6 is adjusted, and finally the suction cup 41 starts to work and adsorbs the end cap 6;

[0054] S2, the can body 7 to be welded is lifted downward to between the two clamping mechanisms 4 by the crane, and then the positions of the two slide plates 3 are adjusted so that the positioning seats 42 on the slide plates 3 form a clamp for the can body 7, and finally the position of the slide plates 3 is finely adjusted so that the can body 7 and the end cap 6 are butted against each other;

[0055] S3, the two slide plates 3 move synchronously until the butt joint between the sealing head 6 and the tank body 7 is located outside the welding gun body 21;

[0056] S4, the motor 53 drives the roller 52 to rotate, and the welding gun body 21 starts to weld the welding point between the sealing head 6 and the can body 7. When the can body 7 rotates one circle, the welding is completed.

[0057] The above-mentioned implementation modes are only preferred implementation modes of the present application and cannot be used to limit the scope of protection of the present application. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present application shall fall within the scope of protection required by the present application.

Claims

1. A fermentation tank welding device, characterized in that: It comprises a base (1) and a welding gun mechanism (2), wherein the base (1) is provided with two slides (3), and each of the slides (3) is provided with a clamping mechanism (4) and a driving mechanism (5); The clamping mechanism (4) comprises a suction cup (41) and a plurality of positioning seats (42); an L-shaped mounting plate (43) is provided on the top of the slide plate (3); a rotating disk (44) is provided at the vertical end of the mounting plate (43); the suction cup (41) is arranged on the rotating disk (44); at least one positioning seat (42) is provided at the horizontal end of the mounting plate (43) and the top of the slide plate (3); the suction cup (41) is used to absorb the sealing head (6); and the plurality of positioning seats (42) are used to clamp the can body (7); The positioning seat (42) is provided with a slot (421), the slot (421) extends along the axial direction of the can body (7) and penetrates the positioning seat (42), a limiting rod (45) is passed through the slot (421), and the outer wall of the limiting rod (45) is in contact with the outer wall of the can body (7) and the outer wall of the sealing head (6); The driving mechanism (5) is used to drive the can body (7) to rotate, and the welding gun mechanism (2) is used to weld the can body (7) and the sealing head (6).

2. A fermentation tank welding device according to claim 1, characterized in that: The base (1) is provided with two slide grooves (11), each of the two slide grooves (11) is provided with a screw rod (12), and the two screw rods (12) are arranged in parallel and both pass through the two slide plates (3); One of the slide plates (3) is connected to one of the screw rods (12) via a threaded connection and is slidably connected to another of the screw rods (12); another of the slide plates (3) is connected to another of the screw rods (12) via a threaded connection and is slidably connected to one of the screw rods (12); two drive motors (13) are provided on the side wall of the base (1); the two drive motors (13) respectively and one-to-one correspond to drive the two screw rods (12) to rotate.

3. A fermentation tank welding device according to claim 1, characterized in that: The driving mechanism (5) comprises two support seats (51), each of the support seats (51) is provided with a roller (52), the two rollers (52) are both in contact with the outer wall of the can body (7), the support seat (51) is also provided with a motor (53), the motor (53) is used to drive the rollers (52) to rotate, the outer surface of the rollers (52) is provided with a rubber layer, the rubber layer is used to increase the friction between the rollers (52) and the can body (7); The welding gun mechanism (2) comprises a welding gun body (21), a mounting seat (22) and a linear slide (23), wherein the mounting seat (22) is arranged on the outer side of the base (1), the linear slide (23) is arranged on the top of the mounting seat (22), the welding gun body (21) is mounted on the linear slide (23), and the linear slide (23) is used to drive the welding gun body (21) to reciprocate in a vertical direction.

4. A fermentation tank welding device according to claim 3, characterized in that: A curved surface (422) is provided on one side of the top of the positioning seat (42), and the curved surface (422) is adapted to and fits with the outer wall of the can body (7), and the clamping groove (421) is communicated with the curved surface (422). A plurality of limiting holes (440) are provided on the rotating disk (44), and the plurality of limiting holes (440) correspond to the plurality of clamping grooves (421) one by one and are coaxially arranged. The limiting rod (45) can slide in the clamping groove (421) and be inserted into the limiting hole (440), and the limiting rod (45) and the roller (52) are staggered.

5. A fermentation tank welding device according to claim 4, characterized in that: A limiting rod (45) corresponding to one of the slide plates (3) is provided with a threaded rod (451) on one end surface facing the other slide plate (3), and a limiting rod (45) corresponding to the other slide plate (3) is provided with a through hole (452) and a receiving groove (453) which are connected to each other on one end facing the one slide plate (3), and the threaded rod (451) can pass through the through hole (452) and enter the receiving groove (453); A pair of vertical plates (454) are provided in the receiving groove (453), and a bearing (455) is provided on each of the pair of vertical plates (454). A threaded sleeve (456) is inserted between the two bearings (455), and the threaded sleeve (456) can rotate between the pair of bearings (455). After the threaded rod (451) is inserted into the receiving groove (453), it can be screwed in the threaded sleeve (456) in an adaptable manner.

6. A fermentation tank welding device according to claim 5, characterized in that: The surface of the threaded sleeve (456) is provided with a knurled pattern, the outer diameter of the threaded sleeve (456) is smaller than the depth of the accommodating groove (453), the threaded sleeve (456), the through hole (452) and the threaded rod (451) are coaxially arranged, and the accommodating groove (453) is arranged at the top of the limiting rod (45) or the bottom of the limiting rod (45).

7. A fermentation tank welding device according to claim 5, characterized in that: A locking plate (423) is provided on the side wall of the positioning seat (42), a locking rod (424) is passed through the locking plate (423), a handle (425) is provided on one end surface of the locking rod (424), the other end of the locking rod (424) passes through the locking plate (423) and is provided with a pressing plate (426), the pressing plate (426) is arranged parallel to the locking plate (423) and can slide on the locking rod (424), the locking rod (424) is also sleeved with a spring (427), and the spring (427) is located between the locking plate (423) and the pressing plate (426); A plurality of locking holes (457) are provided on one side of the limiting rod (45) facing the positioning seat (42). The plurality of locking holes (457) are arranged at intervals along the length direction of the locking rod (424). The locking rod (424) can be inserted into any of the locking holes (457).

8. A fermentation tank welding device according to claim 7, characterized in that: The locking plate (423) and the positioning seat (42) are an integrally formed structure, and the handle (425) faces the outside of the can body (7). When the locking rod (424) is inserted into the locking hole (457), the pressure plate (426) presses against the outer wall of the limiting rod (45) and the spring (427) is in an incompletely compressed state. The locking hole (457) and the accommodating groove (453) are arranged on different side walls of the limiting rod (45).

9. A fermentation tank welding device according to any one of claims 1 to 8, characterized in that: The vertical end of the mounting plate (43) is retractable, and when the mounting plate (43) is retracted in the vertical direction, the limiting rod (45) is located outside the limiting hole (440).

10. A welding method using the fermentation tank welding device according to claim 7, characterized in that: The steps include: S1. The end cap (6) to be welded is lifted downward to between the two clamping mechanisms (4) by a crane, and then the end cap (6) is lifted horizontally to a state where it fits with the suction cup (41), and then the limiting rod (45) on the positioning seat (42) is slid into the limiting hole (440) and the position of the end cap (6) is adjusted, and finally the suction cup (41) starts to work and adsorbs the end cap (6); S2, lifting the can body (7) to be welded downward to between the two clamping mechanisms (4) by means of a crane, adjusting the positions of the two slide plates (3) so that the positioning seats (42) on the slide plates (3) clamp the can body (7), and finally fine-adjusting the position of the slide plates (3) so that the can body (7) and the sealing head (6) are butted against each other; S3, the two slide plates (3) move synchronously until the butt joint between the sealing head (6) and the tank body (7) is located outside the welding gun body (21); S4, the motor (53) drives the roller (52) to rotate, and the welding gun body (21) starts to weld the welding point between the sealing head (6) and the tank body (7). When the tank body (7) rotates one circle, the welding is completed.

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