A welding method for the spherical crown of a stirring barrel

Abstract

The present invention relates to a welding production line for a spherical crown of a stirring barrel and a welding method for the spherical crown of the stirring barrel. The welding production line for the spherical crown of the stirring barrel includes a head buffer station, a flange buffer station, a conical plate buffer station, a rib plate buffer station, a flange-head spot welding station, a flange full welding station, a rib plate full welding station, a conical plate-spherical crown spot welding station, a conical plate full welding station, and a discharging station. The head buffer station and the flange buffer station are used to transfer workpieces to the flange-head spot welding station through a flexible lifting mechanism. The rib plate buffer station and the rib plate full welding station are used to transfer workpieces through a rib plate grabbing mechanism. The conical plate buffer station and the conical plate-spherical crown spot welding station are used to transfer workpieces through a flexible lifting mechanism. The flange-head spot welding station, the flange full welding station, the rib plate full welding station, the conical plate-spherical crown spot welding station, the conical plate full welding station, and the discharging station are used to transfer workpieces through a handling mechanism. The present invention can improve the automation level and intelligent degree of the welding workshop and improve the welding efficiency.

Description

Technical Field

[0001] The present invention relates to the field of welding technology, and particularly to a welding method for a spherical crown of a mixing barrel. Background Art

[0002] When welding the spherical crown of a cement mixing barrel, multiple workpieces need to be welded, including the welding of a flange and a head, the fillet welding of a rib plate and a spherical crown, and the welding of a conical plate and a spherical crown. The weight of the spherical crown is about 250 kilograms and the diameter is about 2 meters. Under the current welding conditions, the welding task of workers is heavy, the welding process is complex, the on-site welding environment is poor, and the flanging of the spherical crown needs to be realized with the help of external auxiliary equipment.

[0003] The existing welding method for the spherical crown of a cement mixing barrel is not conducive to improving the welding efficiency, protecting the health of workers, and the intelligent manufacturing upgrade of the entire mixing barrel welding workshop.

[0004] In summary, there is an urgent need to provide a welding production line for the spherical crown of a mixing barrel and a welding method for the spherical crown of a mixing barrel that can improve the automation level of the welding workshop and the welding efficiency of the mixing barrel. Summary of the Invention

[0005] The purpose of the present invention is to provide a welding production line for the spherical crown of a mixing barrel and a welding method for the spherical crown of a mixing barrel that can improve the automation level of the welding workshop and the welding efficiency of the mixing barrel.

[0006] The above purpose is achieved through the following technical solutions: A welding production line for the spherical crown of a mixing barrel includes a head buffer station, a flange buffer station, a conical plate buffer station, a rib plate buffer station, a flange-head spot welding station, a flange full welding station, a rib plate full welding station, a conical plate-spherical crown spot welding station, a conical plate full welding station, and a discharging station. The head buffer station and the flange buffer station are connected to the flange-head spot welding station through a flexible lifting mechanism to realize the workpiece transfer. The rib plate buffer station and the rib plate full welding station are connected through a rib plate grabbing mechanism to realize the workpiece transfer. The conical plate buffer station and the conical plate-spherical crown spot welding station are connected through a flexible lifting mechanism to realize the workpiece transfer. The flange-head spot welding station, the flange full welding station, the rib plate full welding station, the conical plate-spherical crown spot welding station, the conical plate full welding station, and the discharging station are connected through a handling mechanism to realize the workpiece transfer. The flange full welding station, the rib plate full welding station, and the conical plate full welding station are respectively provided with a flange full welding mechanism, a rib plate full welding mechanism, and a conical plate full welding mechanism for welding.

[0007] The spherical crown welding production line of the present invention is used for welding the spherical crown of a cement mixing barrel. In the specific application process, a flexible lifting mechanism transports the flange and the head from the flange buffer station and the head buffer station to the flange-head spot welding station respectively, and spot welding fixes the flange and the head; a handling mechanism transports the workpiece that has been spot welded to the full welding station of the flange, and a flange full welding mechanism performs full welding on the circumferential weld of the above workpiece; the handling mechanism transports the workpiece that has been fully welded with the flange to the full welding station of the rib plate, the rib plate grasping mechanism grabs the rib plate from the rib plate buffer station to the full welding station of the rib plate, and the rib plate full welding mechanism performs full welding on the rib plate and welds the rib plate on the workpiece that has been fully welded with the flange; the transporting mechanism transports the workpiece that has been fully welded with the rib plate to the conical plate-spherical crown spot welding station, and the flexible lifting mechanism transports the conical plate from the conical plate buffer station to the conical plate-spherical crown spot welding station, and spot welding fixes the conical plate on the workpiece that has been fully welded with the rib plate; the handling mechanism transports the workpiece that has been spot welded with the conical plate-spherical crown to the full welding station of the conical plate, and the conical plate full welding mechanism performs full welding on the circumferential weld of the conical plate to complete the welding of the spherical crown of the mixing barrel; the handling robot transports the spherical crown of the mixing barrel to the discharging station for discharging.

[0008] A further technical solution is that the flange-head spot welding station and the conical plate-spherical crown spot welding station are respectively provided with a moving platform, the handling mechanism is provided with a handling point, and the moving platform is used to transport the workpiece at the flange-head spot welding station or the conical plate-spherical crown spot welding station to the handling point, and the handling mechanism transports the workpiece to other stations at the handling point. With this setting, the moving platform transports the spherical crown with the flange and the head spot welded to the handling point, and the handling mechanism automatically transports the spherical crown to the full welding station of the flange according to the instruction; after the conical plate is spot welded, the moving platform in the conical plate spot welding area is moved to the handling point, and the handling mechanism transports the spherical crown to the full welding station of the conical plate.

[0009] A further technical solution is that the spherical crown welding production line of the mixing barrel further includes a first buffer station for buffering the workpiece after the flange and the head are fully welded, and the full welding station of the flange, the full welding station of the rib plate and the first buffer station realize the workpiece transfer through the handling mechanism. With this setting, when there is a workpiece being welded at the full welding station of the rib plate, the handling mechanism first transports the workpiece that has been fully welded with the flange to the first buffer station, and after the full welding work at the full welding station of the rib plate is completed, the handling mechanism transports the workpiece that has been fully welded with the flange from the first buffer station to the full welding station of the rib plate for welding work.

[0010] A further technical solution is that the welding production line for the spherical crown of the mixing barrel further includes a second buffer station for buffering the workpieces after the spot welding of the conical plate spherical crown. The conical plate spherical crown spot welding station, the conical plate full welding station and the second buffer station achieve the transfer of workpieces through a handling mechanism. In this way, when there is a workpiece being welded at the conical plate full welding station, the handling mechanism first transports the workpiece that has undergone the conical plate spherical crown spot welding to the second buffer station. After the conical plate full welding station completes the prior welding work, the handling mechanism transports the workpiece that has undergone the conical plate spherical crown spot welding from the second buffer station to the conical plate full welding station for welding work.

[0011] A further technical solution is that the handling mechanism includes a walking track and a walking member. The walking member can walk along the walking track, and a handling robot is fixedly arranged on the walking member.

[0012] A further technical solution is that the rib plate buffer station, the rib plate full welding station and the spherical crown discharging station are arranged on one side of the walking track, and the flange head spot welding station, the flange full welding station and the conical plate full welding station are arranged on the other side of the walking track.

[0013] A further technical solution is that a flexible lifting mechanism is arranged at one end of the walking track. The flexible lifting mechanism includes a lifting support. A walking frame is arranged on the lifting support, and a lifting member is arranged on the walking frame. The head buffer station, the flange buffer station and the conical plate buffer station are arranged in the area covered by the walking frame.

[0014] To achieve the above object, the present invention also provides a welding method for the spherical crown of the mixing barrel, which is welded by using the welding production line for the spherical crown of the mixing barrel described in any one of the above, and includes the following steps:

[0015] (1) The flexible lifting mechanism transports the flange and the head from the flange buffer station and the head buffer station to the flange head spot welding station respectively, and the spot welding fixes the flange and the head well;

[0016] (2) The handling mechanism transports the workpiece that has undergone the spot welding in step (1) to the flange full welding station, and the flange full welding mechanism performs full welding on the circumferential seam of the above workpiece;

[0017] (3) The handling mechanism transports the workpiece that has undergone the flange full welding in step (2) to the rib plate full welding station. The rib plate grasping mechanism grasps the rib plate from the rib plate buffer station to the rib plate full welding station, and the rib plate full welding mechanism performs full welding on the rib plate and welds the rib plate on the workpiece that has undergone the flange full welding;

[0018] (4) The handling mechanism transports the workpiece that has undergone the rib plate full welding in step (3) to the conical plate spherical crown spot welding station. The flexible lifting mechanism transports the conical plate from the conical plate buffer station to the conical plate spherical crown spot welding station, and the spot welding fixes the conical plate on the workpiece that has undergone the rib plate full welding;

[0019] (5) The handling mechanism transports the workpiece that has been subjected to conical plate spherical crown spot welding in step (4) to the conical plate full welding station, and the conical plate full welding mechanism performs full welding on the circumferential seam of the conical plate to complete the welding of the spherical crown of the mixing barrel;

[0020] (6) The handling robot transports the spherical crown of the mixing barrel in step (5) to the discharging station for discharging.

[0021] A further technical solution is that in step (3) and step (5), when there is a workpiece being welded at the stiffener full welding station or the conical plate full welding station, the handling mechanism first transports the workpiece that has been subjected to flange full welding or the workpiece that has been subjected to conical plate spherical crown spot welding to the first buffer station or the second buffer station. After the prior welding work at the stiffener full welding station or the conical plate full welding station is completed, the handling mechanism transports the workpiece that has been subjected to flange full welding or the workpiece that has been subjected to conical plate spherical crown spot welding from the first buffer station or the second buffer station to the stiffener full welding station or the conical plate full welding station for welding work.

[0022] A further technical solution is that in step (1), the flange is first transported to the flange head spot welding station. The flange head spot welding station is provided with a three-jaw chuck for fixing the flange. After the bottom of the flange at the flange head spot welding station is clamped and fixed by the three-jaw chuck, the head is hoisted from the head buffer station to the flange at the flange head spot welding station, and manual spot welding is used to fix the two.

[0023] Compared with the prior art, the present invention can realize the whole process of automatic flanging, automatic assembly welding, full welding, and automatic handling of the spherical crown from scattered workpieces to a whole. Workers only need to assist in spot welding work. One person can operate several stations at the same time, which can greatly improve the automation level of the welding workshop, improve the welding efficiency of the mixing barrel, protect the health of workers, and enhance the intelligent degree of the welding workshop on the basis of liberating the labor force. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention.

[0025] Figure 1 Schematic plan layout diagram of the mixing barrel spherical crown welding production line involved in an embodiment of the present invention.

[0026] In the figure:

[0027] 1 Head buffer station 2 Flange buffer station 3 Flexible lifting mechanism 4 Conical plate buffer station

[0028] 5 Conical plate spherical crown spot welding station 6 First buffer station 7 Stiffener buffer station 8 Stiffener grasping mechanism

[0029] 9 Rib plate full welding station 10 Rib plate full welding mechanism 11 Spherical crown discharging station 12 Cone plate full welding mechanism

[0030] 13 Cone plate full welding station 14 Handling mechanism 15 Flange full welding mechanism 16 Flange full welding station

[0031] 17 Second buffer station 18 Flange head spot welding station Detailed implementation manners

[0032] The present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not have any restrictive effect on the protection scope of the present invention. In addition, those skilled in the art can make corresponding combinations of the features in the embodiments and different embodiments in this document according to the description of this document.

[0033] The embodiments of the present invention are as follows. Refer to Figure 1 , a spherical crown welding production line for a stirring barrel, including a head buffer station 1, a flange buffer station 2, a cone plate buffer station 4, a rib plate buffer station 7, a flange head spot welding station 18, a flange full welding station 16, a rib plate full welding station 9, a cone plate and spherical crown spot welding station 5, a cone plate full welding station 13, and a discharging station. The head buffer station 1 and the flange buffer station 2 are connected to the flange head spot welding station 18 through a flexible lifting mechanism 3 to realize the workpiece transfer. The rib plate buffer station 7 and the rib plate full welding station 9 are connected through a rib plate grasping mechanism 8 to realize the workpiece transfer. The cone plate buffer station 4 and the cone plate and spherical crown spot welding station 5 are connected through a flexible lifting mechanism 3 to realize the workpiece transfer. The flange head spot welding station 18, the flange full welding station 16, the rib plate full welding station 9, the cone plate and spherical crown spot welding station, the cone plate full welding station 13, and the discharging station are connected through a handling mechanism 14 to realize the workpiece transfer. The flange full welding station 16, the rib plate full welding station 9, and the cone plate full welding station 13 are respectively provided with a flange full welding mechanism 15, a rib plate full welding mechanism 10, and a cone plate full welding mechanism 12.

[0034] The spherical crown welding production line of the present invention is used for welding the spherical crown of a cement mixing barrel. In the specific application process, the flexible lifting mechanism 3 transports the flange and the head from the flange buffer station 2 and the head buffer station 1 to the flange-head spot welding station 18 respectively, and spot welding fixes the flange and the head; the handling mechanism 14 transports the workpiece that has been spot welded to the full welding station 16 of the flange, and the full welding mechanism 15 of the flange performs full welding on the circumferential seam of the above workpiece; the handling mechanism 14 transports the workpiece that has been fully welded with the flange to the full welding station 9 of the rib plate, the rib plate grasping mechanism 8 grabs the rib plate from the rib plate buffer station 7 to the full welding station 9 of the rib plate, and the full welding mechanism 10 of the rib plate performs full welding on the rib plate and welds the rib plate on the workpiece that has been fully welded with the flange; the handling mechanism transports the workpiece that has been fully welded with the rib plate to the conical plate-spherical crown spot welding station 5, the flexible lifting mechanism 3 transports the conical plate from the conical plate buffer station 4 to the conical plate-spherical crown spot welding station 5, and spot welding fixes the conical plate on the workpiece that has been fully welded with the rib plate; the handling mechanism 14 transports the workpiece that has been spot welded with the conical plate-spherical crown to the full welding station 13 of the conical plate, and the full welding mechanism 12 of the conical plate performs full welding on the circumferential seam of the conical plate to complete the welding of the spherical crown of the mixing barrel; the handling robot transports the spherical crown of the mixing barrel to the discharging station for discharging.

[0035] On the basis of the above embodiment, in another embodiment of the present invention, as Figure 1 , a moving platform is respectively provided at the flange-head spot welding station 18 and the conical plate-spherical crown spot welding station 5, and the handling mechanism 14 is provided with a handling point. The moving platform is used to transport the workpiece at the flange-head spot welding station 18 or the conical plate-spherical crown spot welding station 5 to the handling point, and the handling mechanism 14 transports the workpiece to other stations at the handling point. With such a setting, the moving platform transports the spherical crown with the flange and the head spot welded to the handling point, and the handling mechanism 14 automatically transports the spherical crown to the full welding station 16 of the flange according to the instruction; after the conical plate is spot welded, the moving platform in the conical plate spot welding area is moved to the handling point, and the handling mechanism 14 transports the spherical crown to the full welding station 13 of the conical plate.

[0036] On the basis of the above embodiment, in another embodiment of the present invention, as Figure 1 , the spherical crown welding production line of the mixing barrel further includes a first buffer station 6 for buffering the workpiece after the full welding of the flange and the head. The full welding station 16 of the flange, the full welding station 9 of the rib plate and the first buffer station 6 realize the workpiece transfer through the handling mechanism 14. With such a setting, when there is a workpiece being welded at the full welding station 9 of the rib plate, the handling mechanism 14 first transports the workpiece that has been fully welded with the flange to the first buffer station 6. After the full welding work at the full welding station 9 of the rib plate is completed, the handling mechanism 14 transports the workpiece that has been fully welded with the flange from the first buffer station 6 to the full welding station 9 of the rib plate for welding work.

[0037] On the basis of the above embodiment, in another embodiment of the present invention, as Figure 1, the welding production line for the spherical crown of the stirring barrel further includes a second buffer station 17 for buffering the workpieces after the spot welding of the conical plate spherical crown. The conical plate spherical crown spot welding station 5, the conical plate full welding station 13 and the second buffer station 17 achieve the workpiece transfer through a handling mechanism 14. In this way, when there is a workpiece being welded at the conical plate full welding station 13, the handling mechanism 14 first transports the workpiece that has undergone the conical plate spherical crown spot welding to the second buffer station 17. After the conical plate full welding station 13 completes the prior welding work, the handling mechanism 14 transports the workpiece that has undergone the conical plate spherical crown spot welding from the second buffer station 17 to the conical plate full welding station 13 for welding work.

[0038] Based on the above embodiments, in another embodiment of the present invention, as Figure 1 , the handling mechanism 14 includes a walking track and a walking member. The walking member can walk along the walking track, and a handling robot is fixedly provided on the walking member.

[0039] Based on the above embodiments, in another embodiment of the present invention, as Figure 1 , the rib plate buffer station 7, the rib plate full welding station 9 and the spherical crown discharging station 11 are arranged on one side of the walking track, and the flange head spot welding station 18, the flange full welding station 16 and the conical plate full welding station 13 are arranged on the other side of the walking track.

[0040] Based on the above embodiments, in another embodiment of the present invention, as Figure 1 , the flexible lifting mechanism 3 is arranged at one end of the walking track. The flexible lifting mechanism 3 includes a lifting support. A walking frame is provided on the lifting support, and a lifting member is provided on the walking frame. The head buffer station 1, the flange buffer station 2 and the conical plate buffer station 4 are arranged in the area covered by the walking frame.

[0041] The present invention also provides a welding method for the spherical crown of the stirring barrel. The embodiments are as follows. Welding is carried out by using the welding production line for the spherical crown of the stirring barrel described in any of the above, including the following steps:

[0042] (1) The flexible lifting mechanism 3 transports the flange and the head from the flange buffer station 2 and the head buffer station 1 to the flange head spot welding station 18 respectively, and spot welds to fix the flange and the head;

[0043] (2) The handling mechanism 14 transports the workpiece that has been spot welded in step (1) to the flange full welding station 16, and the flange full welding mechanism 15 performs full welding on the circumferential seam of the above workpiece;

[0044] (3) The handling mechanism 14 transports the workpiece that has been flange full welded in step (2) to the rib plate full welding station 9. The rib plate grasping mechanism 8 grasps the rib plate from the rib plate buffer station 7 to the rib plate full welding station 9, and the rib plate full welding mechanism 10 performs full welding on the rib plate and welds the rib plate on the workpiece that has been flange full welded;

[0045] (4) The handling mechanism 14 transports the workpiece that has been fully welded with stiffeners in step (3) to the conical plate spherical crown spot welding station 5. The flexible lifting mechanism 3 transports the conical plate from the conical plate buffer station 4 to the conical plate spherical crown spot welding station 5, and spot welding fixes the conical plate on the workpiece that has been fully welded with stiffeners.

[0046] (5) The handling mechanism 14 transports the workpiece that has been subjected to conical plate spherical crown spot welding in step (4) to the conical plate full welding station 13, and the conical plate full welding mechanism 12 performs full welding on the circumferential seam of the conical plate to complete the welding of the stirring barrel spherical crown.

[0047] (6) The handling robot transports the stirring barrel spherical crown in step (5) to the discharging station for discharging.

[0048] Based on the above embodiments, in another embodiment of the present invention, in step (3) and step (5), when there is a workpiece being welded at the stiffener full welding station 9 or the conical plate full welding station 13, the handling mechanism 14 first transports the workpiece that has been fully welded with the flange or the workpiece that has been subjected to conical plate spherical crown spot welding to the first buffer station 6 or the second buffer station 17. After the prior welding work at the stiffener full welding station 9 or the conical plate full welding station 13 is completed, the handling mechanism 14 transports the workpiece that has been fully welded with the flange or the workpiece that has been subjected to conical plate spherical crown spot welding from the first buffer station 6 or the second buffer station 17 to the stiffener full welding station 9 or the conical plate full welding station 13 for welding work.

[0049] Based on the above embodiments, in another embodiment of the present invention, in step (1), the flange is first transported to the flange head spot welding station 18. The flange head spot welding station 18 is provided with a three-jaw chuck for fixing the flange. After the bottom of the flange at the flange head spot welding station 18 is clamped and fixed by the three-jaw chuck, the head is hoisted from the head buffer station 1 to the flange at the flange head spot welding station 18, and manual spot welding is used to fix the two.

[0050] For those of ordinary skill in the art of this technology, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A welding method for the spherical crown of a stirring barrel, characterized in that, Welding is carried out using a stirring barrel spherical crown welding production line. The stirring barrel spherical crown welding production line includes a head buffer station, a flange buffer station, a cone plate buffer station, a rib plate buffer station, a flange-head spot welding station, a flange full welding station, a rib plate full welding station, a cone plate-spherical crown spot welding station, a cone plate full welding station, and an unloading station. The head buffer station and the flange buffer station are used to transfer workpieces to the flange-head spot welding station through a flexible lifting mechanism. The rib plate buffer station and the rib plate full welding station are used to transfer workpieces through a rib plate grabbing mechanism. The cone plate buffer station and the cone plate-spherical crown spot welding station are used to transfer workpieces through a flexible lifting mechanism. The flange-head spot welding station, the flange full welding station, the rib plate full welding station, the cone plate-spherical crown spot welding station, the cone plate full welding station, and the unloading station are used to transfer workpieces through a handling mechanism. The flange full welding station, the rib plate full welding station, and the cone plate full welding station are respectively equipped with a flange full welding mechanism, a rib plate full welding mechanism, and a cone plate full welding mechanism for welding. The welding method of the stirring barrel spherical crown includes the following steps: (1) The flexible lifting mechanism transports the flange and the head from the flange buffer station and the head buffer station to the flange-head spot welding station respectively, and spot welding fixes the flange and the head; (2) The handling mechanism transports the workpiece that has been spot welded in step (1) to the flange full welding station, and the flange full welding mechanism performs full welding on the circumferential seam of the above workpiece; (3) The handling mechanism transports the workpiece that has been flange fully welded in step (2) to the rib plate full welding station. The rib plate grabbing mechanism grabs the rib plate from the rib plate buffer station to the rib plate full welding station, and the rib plate full welding mechanism performs full welding on the rib plate and welds the rib plate on the workpiece that has been flange fully welded; (4) The handling mechanism transports the workpiece that has been rib plate fully welded in step (3) to the cone plate-spherical crown spot welding station. The flexible lifting mechanism transports the cone plate from the cone plate buffer station to the cone plate-spherical crown spot welding station, and spot welding fixes the cone plate on the workpiece that has been rib plate fully welded; (5) The handling mechanism transports the workpiece that has been cone plate-spherical crown spot welded in step (4) to the cone plate full welding station, and the cone plate full welding mechanism performs full welding on the circumferential seam of the cone plate to complete the welding of the stirring barrel spherical crown; (6) The handling robot transports the stirring barrel spherical crown in step (5) to the unloading station for unloading.

2. The welding method of the spherical crown of the stirring barrel according to claim 1, characterized in that, In step (3) and step (5), when there is a workpiece being welded at the rib plate full welding station or the cone plate full welding station, the handling mechanism first transports the workpiece that has been flange fully welded or the workpiece that has been cone plate-spherical crown spot welded to the first buffer station or the second buffer station. After the rib plate full welding station or the cone plate full welding station completes the prior welding work, the handling mechanism transports the workpiece that has been flange fully welded or the workpiece that has been cone plate-spherical crown spot welded from the first buffer station or the second buffer station to the rib plate full welding station or the cone plate full welding station for welding work.

3. The welding method of the spherical crown of the stirring barrel according to claim 2, wherein In step (1), the flange is first conveyed to the flange head spot welding station. The flange head spot welding station is equipped with a three-jaw chuck for fixing the flange. After the bottom of the flange at the flange head spot welding station is clamped and fixed by the three-jaw chuck, the head is then hoisted from the head buffer station to the flange at the flange head spot welding station, and the two are fixed by manual spot welding.

4. The welding method of the spherical crown of the stirring barrel according to claim 1, characterized in that, The flange head spot welding station and the conical plate spherical crown spot welding station are respectively equipped with mobile platforms. The handling mechanism is provided with a handling point. The mobile platform is used to convey the workpieces at the flange head spot welding station or the conical plate spherical crown spot welding station to the handling point, and the handling mechanism transports the workpieces to other stations at the handling point.

5. The welding method of the spherical crown of the stirring barrel according to claim 1, characterized in that The stirring barrel spherical crown welding production line further includes a first buffer station for buffering the workpieces after the full welding of the flange head. The flange full welding station, the rib plate full welding station and the first buffer station realize the workpiece transfer through the handling mechanism.

6. The welding method of the spherical crown of the stirring barrel according to claim 5, characterized in that, The stirring barrel spherical crown welding production line further includes a second buffer station for buffering the workpieces after the spot welding of the conical plate spherical crown. The conical plate spherical crown spot welding station, the conical plate full welding station and the second buffer station realize the workpiece transfer through the handling mechanism.

7. The welding method of the spherical crown of the stirring barrel according to any one of claims 4 to 6, characterized in that, The handling mechanism includes a walking track and a walking member. The walking member can walk along the walking track, and a handling robot is fixedly arranged on the walking member.

8. The welding method of the spherical crown of the stirring barrel according to claim 7, characterized in that The rib plate buffer station, the rib plate full welding station and the spherical crown discharging station are arranged on one side of the walking track, and the flange head spot welding station, the flange full welding station and the conical plate full welding station are arranged on the other side of the walking track.

9. The welding method of the spherical crown of the stirring barrel according to claim 8, characterized in that The flexible lifting mechanism is arranged at one end of the walking track. The flexible lifting mechanism includes a lifting support. A walking frame is arranged on the lifting support, and a lifting member is arranged on the walking frame. The head buffer station, the flange buffer station and the conical plate buffer station are arranged in the area covered by the walking frame.

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