Acetylene cylinder intelligent welding production line

Abstract

The intelligent welding production line for acetylene cylinders includes a cylinder conveyor line and a roll forming system, an end cover welding system, an accessory welding system, a leakage detection system and a storage system arranged in sequence along the conveying direction of the cylinder conveyor line on one side thereof. The roll forming system can roll the steel plate into a cylindrical roll and complete the welding work of the inner and outer sides of the longitudinal seam at the butt joint of the steel plate, effectively ensuring the welding firmness of the roll. The roll after welding can continue to be transported along the cylinder conveyor line. The end cover welding system and the accessory welding system can complete the welding work of the bottom cover and the top cover at both ends of the roll, as well as the bottom support and the top nozzle on the outer side of the bottom cover and the top cover. The end cover welding system can complete the welding work of the inner and outer seams at the abutting position between the bottom cover and the roll, and the abutting position between the top cover and the roll, ensuring the welding firmness between the bottom cover, the top cover and the roll. The leakage detection system can perform leakage detection on the welded cylinders, and the cylinders that have been detected can be stored through the storage system.

Description

Technical Field

[0001] The invention relates to the technical field of intelligent welding processing, and in particular to an intelligent welding production line for acetylene cylinders. Background Art

[0002] The production process of acetylene cylinders is usually to make a cylindrical bottle body from steel plates in advance, and then weld the steel plates firmly at the joint position to make the main body, and then weld the bottom cover and the top cover to the bottle body, and finally weld the bottom support and the bottle mouth to the bottom cover and the top cover respectively to finally make the acetylene cylinder finished product. In order to ensure the welding quality and welding production speed, the welding production work of existing cylinders is usually completed by welding robot arms. When performing the welding work, the robot arm is first used to press and fix the bottom cover and the top cover to the cylindrical main body completed by rolling and welding, and then the welding robot arm is used to weld around the pressing position to complete the welding and fixing work of the main body, the bottom cover and the top cover.

[0003] On the one hand, in the existing production of steel cylinders, the rolling and welding of the main part are mostly carried out separately, that is, the steel plate needs to be manually rolled into a cylindrical main body through a rolling machine, and then after welding and fixing, it needs to be transferred to the welding station of the bottom cover and the top cover. After the welding is completed, the steel cylinder needs to be transferred to another station for leak detection. Ultimately, the production of acetylene cylinders is divided into multiple stations, and assembly line production cannot be achieved, affecting the production efficiency of the cylinders.

[0004] On the other hand, after the steel plate is rolled, the welding work of the butt joint (longitudinal seam), as well as the welding work between the bottom cover and the main body, and the top cover and the main body, is only carried out on the outside of the butt joint. This makes it impossible to effectively guarantee the welding firmness between the main body and the bottom cover and the top cover, and ultimately makes the welded acetylene cylinder unable to adapt to the use environment of higher pressure. Moreover, this method of welding only the outside will directly lead to the acetylene cylinder being unable to be used normally once welding errors occur, which will also have a great impact on the quality of the finished product. Summary of the invention

[0005] In order to solve the technical problems existing in the above-mentioned background technology, the present invention provides an acetylene cylinder intelligent welding production line.

[0006] The technical solution of the present invention is as follows:

[0007] The intelligent welding production line for acetylene cylinders includes a cylinder conveying line and a roll forming system, an end cover welding system, an accessory welding system, a leakage detection system and a retractable storage system which are sequentially arranged on one side of the cylinder conveying line along the conveying direction of the cylinder conveying line.

[0008] As one of the core technical concepts of the present invention, with regard to the structure of the roll forming system, it includes a roll machine arranged at one side of the head end of the cylinder conveying line, the roll machine is configured to be able to roll the steel plate into a cylindrical roll with both ends passing through, one side of the roll machine is also provided with a longitudinal seam welding device, and a first transfer arm capable of completing the transfer of the roll between the roll machine, the longitudinal seam welding device and the cylinder conveying line, and the longitudinal seam welding device is configured to complete the welding work on the inner and outer sides of the longitudinal seam of the roll. On the basis of the above structure, the roll rolled by the roll machine can be autonomously transferred to the longitudinal seam welding device under the action of the first transfer arm, and the roll after welding can be autonomously transferred to the next workstation of the cylinder conveying line under the action of the first transfer arm, thereby improving the automation level and the welding efficiency of the roll, and the longitudinal seam welding device performs the welding work at the steel plate docking position from the inner and outer sides of the longitudinal seam, effectively ensuring the welding firmness and welding quality of the roll, and ultimately ensuring the forming quality of the cylinder.

[0009] As another core technical concept of the present invention, with regard to the structure of the end cover welding system, it includes a bottom cover welding device and a top cover welding device which are sequentially arranged along the transport direction of the cylinder transport line, wherein the bottom cover welding device is arranged to align the bottom cover with one end of the reel, and complete the welding work of the inner and outer seams of the docking position between the bottom cover and the reel, so as to ensure the welding firmness of the bottom cover and the reel, and the top cover welding device is arranged to align the top cover with the other end of the reel, and complete the welding work of the inner and outer seams of the docking position between the top cover and the reel, so as to ensure the welding firmness of the top cover and the reel, and finally ensure the welding firmness of the main part of the cylinder (reel, bottom cover, top cover), and further ensure the molding quality of the cylinder.

[0010] As for the structure of the accessory welding system, it includes a bottom support conveying line and a top nozzle conveying line arranged on one side of the steel cylinder conveying line, and a sixth welding frame and a sixth welding arm are arranged between the bottom support conveying line and the top nozzle conveying line, wherein the sixth welding frame is configured to be able to pick up the bottom support and the top nozzle of the bottom support conveying line and the top nozzle conveying line, and to be able to clamp and fix the bottom support and the top nozzle on the outside of the bottom cover and the top cover respectively, and the sixth welding arm is configured to be able to complete the welding work of the bottom support and the bottom cover, and the top nozzle and the top cover, and finally complete the welding work of the entire steel cylinder.

[0011] As for the structure of the leakage detection system, it includes an observation water pool arranged outside the steel cylinder transportation line, and an inflation device capable of injecting air into the steel cylinder through a back nozzle. A steel cylinder transfer device capable of completing the transfer of steel cylinders between the steel cylinder transportation line and the observation water pool is also arranged on the upper side of the observation water pool. The welded steel cylinders can be transferred to the observation system under the action of the steel cylinder transfer device. By observing whether there are bubbles in the observation water pool, it can be judged whether the molding of the steel cylinder is qualified, thereby ultimately ensuring the factory quality of the steel cylinder.

[0012] As for the structure of the storage system, it includes a second transfer arm and a storage rack arranged at the end of the cylinder transportation line, and the second transfer arm is configured to transfer the cylinders that have completed leakage detection on the cylinder transportation line to the storage rack.

[0013] The intelligent welding production line for acetylene cylinders as described above, specifically speaking of the structure of the longitudinal seam welding device, comprises a first welding frame and a first welding arm arranged on one side of the first welding frame, wherein the first welding frame comprises a first bracket and a rotating drum which is laterally arranged and rotatable on its upper side, the first transfer arm is arranged to be able to insert the drum from one end of the rotating drum into the rotating drum, the first welding arm is arranged to be able to complete the welding work on the outside of the longitudinal seam on the outside of the rotating drum, and to be able to extend from one end of the rotating drum into the inside of the drum to complete the welding work on the inside of the longitudinal seam.

[0014] As a preferred embodiment, a steel plate rack capable of storing steel plates to be rolled is provided on one side of the winding machine, and a steel plate transfer device capable of transferring steel plates to the winding machine is provided on the upper side of the steel plate rack, thereby ensuring that the steel plate loading work of the winding machine can also be carried out autonomously, further improving the automation level of the production line.

[0015] In order to ensure smooth loading of steel plates while preventing interference between the loading work of the steel plate transfer device and the steel plate rolling work of the reel, the transfer method of the steel plate transfer device is magnetic suction.

[0016] More preferably, the roll forming system also includes an arc plate cutting frame capable of completing the cutting of arc starting plates and arc ending plates, and the first transfer arm is configured to complete the transfer of the roll between the arc plate cutting frame and the longitudinal seam welding device, so that after the longitudinal seam welding is completed, the cutting of the arc starting plates and arc ending plates can be carried out autonomously.

[0017] In the intelligent welding production line for acetylene cylinders as described above, the bottom cover welding device and the top cover welding device respectively include a bottom cover conveying line and a top cover conveying line, and a second welding frame and a fourth welding frame are respectively provided on one side of the bottom cover conveying line and the top cover conveying line, and a second welding arm and a fourth welding arm are respectively provided on one side of the second welding frame and the fourth welding frame, wherein the second welding frame and the fourth welding frame are configured to respectively pick up the bottom cover on the bottom cover conveying line and the top cover on the top cover conveying line, and can clamp the bottom cover and the top cover to the end of the reel, and the second welding arm and the fourth welding arm are configured to respectively complete the outer seam welding work of the bottom cover and the reel, and the top cover and the reel at the tight position.

[0018] Furthermore, specifically speaking of the structures of the second welding frame and the fourth welding frame, they both include a second frame body, a first rotating shaft and a second rotating shaft are coaxially provided on both sides of the upper part of the second frame body, and the first rotating shaft and the second rotating shaft are both drivingly connected to a first motor, wherein the first rotating shaft can be telescopic along the axial direction and a first connecting seat is provided at the outer end, and the second welding frame and the fourth welding frame both include a first clamping arm and a second clamping arm, wherein one end of the first clamping arm is hingedly connected to the first connecting seat, and the rotation axis is perpendicular to the first rotating shaft, and a first suction cup is rotatably provided on the inner side of the other end, and one side of the first connecting seat and the outer side of an end of the first clamping arm away from the first connecting seat are respectively provided with a first clamping arm that can A second motor and a third motor drive the first clamping arm and the first suction cup to rotate, one end of the second clamping arm is vertically connected to the outer end of the second rotating shaft, and a first clamping disc is provided on the inner side of the other end. The first clamping arm can be driven to move through the action of the first motor and the second motor, and the first suction cup on the first clamping arm can independently complete the picking up of the bottom cover and the top cover on the bottom cover transport line and the top cover transport line, and under the telescopic action of the first rotating shaft, the bottom cover, the top cover and the reel are pressed tightly, and under the action of the third motor, the clamped reel, the bottom cover and the top cover are driven to rotate together, and cooperate with the second welding arm and the fourth welding arm to complete the welding work of the outer circle of the abutting position between the bottom cover and the reel and the abutting position between the top cover and the reel.

[0019] As described above, in the intelligent welding production line for acetylene cylinders, the bottom cover welding device and the top cover welding device further include a third welding frame and a fifth welding frame respectively arranged on one side of the second welding frame and the fourth welding frame along the transport direction of the cylinder transport line, and a third welding arm and a fifth welding arm are respectively arranged on one side of the third welding frame and the fifth welding frame, the third welding frame is configured to be able to clamp the reel with the bottom cover, the third welding arm is configured to be able to extend from the end of the reel away from the bottom cover into the reel to complete the welding work of the inner seam of the bottom cover and the reel at the tight position, the fifth welding frame is configured to be able to clamp the bottom cover and the top cover at both ends of the reel, and the fifth welding arm is configured to be able to extend from the middle opening of the top cover into the reel to complete the welding work of the inner seam of the top cover and the reel at the tight position.

[0020] Specifically speaking, the structures of the third welding frame and the fifth welding frame include a third frame body, a third rotating shaft and a fourth rotating shaft are coaxially arranged on both sides of the upper part of the third frame body, and the third rotating shaft and the fourth rotating shaft are both drivingly connected to a fourth motor, and the third rotating shaft and / or the fourth rotating shaft can be telescopic along the axial direction, and the third welding frame and the fifth welding frame also include a third clamping arm and a fourth clamping arm, wherein one end of the third clamping arm and the fourth clamping arm are respectively vertically connected to the outer ends of the third rotating shaft and the fourth rotating shaft, and the inner sides of the other ends are respectively provided with a second suction cup and a second clamping disc, and the outer side of the end of the third clamping arm away from the third rotating shaft is also provided with a The fifth motor rotates the suction cup, the second clamping disk is a circular ring structure, and the fourth clamping arm is provided with a through hole at the position corresponding to the second clamping disk, and the bottom cover, the top cover and the reel can be tightened through the telescopic movement of the third rotating shaft and / or the fourth rotating shaft, and the clamped reel, the bottom cover and the top cover are driven to rotate together under the action of the fifth motor, wherein the third welding arm can pass through the through hole and extend from the end of the reel away from the bottom cover into the interior of the reel to complete the welding work of the inner circle of the bottom cover and the reel abutting position, and the fifth welding arm can pass through the through hole and extend from the middle opening of the top cover into the reel to complete the welding work of the inner circle of the reel abutting position.

[0021] The acetylene cylinder intelligent welding production line as described above, specifically speaking, the structure of the sixth welding frame includes a fourth frame body, and a fifth rotating shaft and a sixth rotating shaft are coaxially arranged on both sides of the upper part of the fourth frame body, and the fifth rotating shaft and the sixth rotating shaft are both transmission-connected to a sixth motor, the fifth rotating shaft and / or the sixth rotating shaft can be telescopic along the axial direction, and the outer ends of the fifth rotating shaft and the sixth rotating shaft are each provided with a second connecting seat, the sixth welding frame also includes a fifth clamping arm and a sixth clamping arm, one end of the fifth clamping arm and the sixth clamping arm are respectively hingedly connected to the second connecting seat at the outer ends of the fifth rotating shaft and the sixth rotating shaft, and the rotation axis is perpendicular to the axis of the rotating shaft, and the inner sides of the other ends are respectively provided with a third suction cup and a fourth suction cup, and one side of the second connecting seat is also provided with a mechanism capable of driving the fifth clamping arm and A seventh motor is used to rotate the sixth clamping arm, and an eighth motor is also provided on the outer side of one end of the fifth clamping arm and / or the sixth clamping arm away from the second connecting seat, which can drive the third suction cup and / or the fourth suction cup to rotate. Through the action of the sixth motor and the seventh motor, the fifth clamping arm and the sixth clamping arm can be driven to move. Through the third suction cup and the fourth suction cup on the fifth clamping arm and the sixth clamping arm, the picking up of the bottom support and the top nozzle on the bottom support transportation line and the top nozzle transportation line can be completed independently, and under the telescopic action of the fifth rotating shaft and / or the sixth rotating shaft, the bottom support and the top nozzle are respectively pressed against the outer sides of the bottom cover and the top cover, and under the action of the eighth motor, the clamped bottom support, the reel, the bottom cover, the top cover and the top nozzle are driven to rotate together, and the sixth welding arm is cooperated to complete the welding work of the bottom support and the bottom cover, and the top nozzle and the top cover.

[0022] The beneficial effects of the present invention are:

[0023] (1) The acetylene cylinder intelligent welding production line of the present invention can independently complete the automated production work from steel plate to finished cylinder products through the coordinated roll forming system, end cover welding system, accessory welding system, leakage detection system and storage system, saving labor costs and significantly improving the forming quality and forming speed of the cylinder;

[0024] (2) In the acetylene cylinder intelligent welding production line of the present invention, the roll rolled by the roll machine can be autonomously transferred to the longitudinal seam welding device under the action of the first transfer arm, and the roll after welding can be autonomously transferred to the cylinder transportation line for transportation to the next station under the action of the first transfer arm, thereby improving the automation level and the welding efficiency of the roll. In addition, when the longitudinal seam welding device performs welding work at the butt joint of the steel plates, it performs welding work from the inner and outer sides of the longitudinal seam, thereby effectively ensuring the welding firmness and welding quality of the roll, and ultimately ensuring the forming quality of the cylinder;

[0025] (3) The intelligent welding production line for acetylene cylinders of the present invention can complete the welding of the inner and outer seams of the bottom cover and the drum docking position, as well as the welding of the inner and outer seams of the top cover and the drum docking position through the end cover welding system, thereby ensuring the welding firmness between the bottom cover, the top cover and the drum, and ultimately ensuring the welding firmness of the main part of the cylinder (drum, bottom cover, top cover), further ensuring the molding quality of the cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] By reading the detailed description of the preferred embodiment below, the scheme and advantages of the present application will become clear to those skilled in the art. The accompanying drawings are only for the purpose of illustrating the preferred embodiment and are not to be considered as limiting the present invention.

[0027] In the attached picture:

[0028] Figure 1 It is a schematic diagram of the layout of the production line in the embodiment;

[0029] Figure 2 It is a schematic diagram of the composition structure of the roll forming system in the embodiment;

[0030] Figure 3 is a schematic structural diagram of a first welding frame in the embodiment;

[0031] Figure 4 It is a schematic diagram of the composition structure of the bottom cover welding device in the embodiment;

[0032] Figure 5 is a schematic structural diagram of a second welding frame in the embodiment;

[0033] Figure 6 is a schematic structural diagram of a third welding frame in the embodiment;

[0034] Figure 7 It is a schematic diagram of the composition structure of the top cover welding device in the embodiment;

[0035] Figure 8 It is a schematic diagram of the composition structure of the accessory welding system in the embodiment;

[0036] Fig. 9 is a schematic structural diagram of a sixth welding frame in the embodiment;

[0037] Fig.10 A schematic diagram of the structure of the leakage detection system in the embodiment;

[0038] Fig.11 It is a schematic diagram of the composition structure of the retractable storage system in the embodiment;

[0039] The components represented by the reference numerals in the figure are:

[0040] 1. Roll forming system; 11. Steel plate rack; 12. Steel plate transfer device; 13. Roller; 14. First transfer arm; 15. Longitudinal seam welding device; 151. First welding rack; 1511. First bracket; 1512. Rotating drum; 152. First welding arm; 16. Arc plate cutting rack; 2. End cover welding system; 21. Bottom cover welding device; 211. Bottom cover transport line; 212. Second welding rack; 2121. Second rack body; 2122, first rotating shaft; 2123, second rotating shaft; 2124, first connecting seat; 2125, first clamping arm; 2126, second clamping arm; 2127, first suction cup; 2128, first clamping plate; 213, second welding arm; 214, third welding frame; 2141, third frame; 2142, third rotating shaft; 2143, fourth rotating shaft; 2144, third clamping arm; 2145, fourth clamping arm; 214 6. Second suction cup; 2147. Second clamping plate; 215. Third welding arm; 22. Top cover welding device; 221. Top cover transport line; 222. Fourth welding frame; 223. Fourth welding arm; 224. Fifth welding frame; 225. Fifth welding arm; 3. Accessory welding system; 31. Bottom support transport line; 32. Back nozzle transport line; 33. Accessory welding device; 331. Sixth welding frame; 3311. Fourth frame; 3 312. Fifth rotating shaft; 3313. Sixth rotating shaft; 3314. Second connecting seat; 3315. Fifth clamping arm; 3316. Sixth clamping arm; 3317. Third suction cup; 3318. Fourth suction cup; 332. Sixth welding arm; 4. Leakage detection system; 41. Observation pool; 42. Transfer rack; 43. Cylinder transfer device; 5. Storage system; 51. Second transfer arm; 52. Storage rack; 6. Cylinder transportation line. DETAILED DESCRIPTION

[0041] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings.

[0042] Example

[0043] This embodiment provides an acetylene cylinder intelligent welding production line, see Figure 1 , including a cylinder transport line 6 and a roll forming system 1, an end cover welding system 2, an accessory welding system 3, a leakage detection system 4 and a storage system 5 which are sequentially arranged on one side of the cylinder transport line 6 along the transport direction of the cylinder transport line 6. The roll forming system 1 is configured to be able to roll the steel plate into a cylindrical roll, and after welding, the roll is placed on the cylinder transport line 6 so that it can continue to be transported along the cylinder transport line 6. The end cover welding system 2 and the accessory welding system 3 are configured to be able to complete the welding of the bottom cover and the top cover at both ends of the roll, as well as the bottom support and the top nozzle on the outer side of the bottom cover and the top cover. The leakage detection system 4 is configured to be able to perform leakage detection on the welded cylinder, and the detected cylinder can be stored through the storage system 5. The following is a detailed description of the various components of the production line (the above-mentioned acetylene cylinder intelligent welding production line).

[0044] In this embodiment, as one of the core technical concepts of the present invention, combined with Figure 2 The roll forming system 1 includes a roll machine 13 arranged at one side of the head end of the steel cylinder conveying line 6, and the roll machine 13 is configured to be able to roll the steel plate into a cylindrical roll with two ends through, and the roll machine 13 is also provided with a longitudinal seam welding device 15 on one side along the conveying direction of the steel cylinder conveying line 6, and a first transfer arm 14 capable of completing the transfer of the roll between the roll machine 13, the longitudinal seam welding device 15 and the steel cylinder conveying line 6 is also provided between the longitudinal seam welding device 15 and the roll machine 13, and the longitudinal seam welding device 15 is configured to be able to complete the inner and outer longitudinal seams of the roll For welding work, on the basis of the above structure, the reel rolled by the reel machine 13 can be autonomously transferred to the longitudinal seam welding device 15 under the action of the first transfer arm 14, and the reel after welding can be autonomously transferred to the cylinder transport line 6 for transportation to the next workstation under the action of the first transfer arm 14, which improves the automation level and the welding efficiency of the reel. When the longitudinal seam welding device 15 performs welding work at the steel plate docking position, it performs the welding work from the inside and outside of the longitudinal seam, which effectively ensures the welding firmness and welding quality of the reel, and finally ensures the forming quality of the cylinder.

[0045] As a preferred embodiment, a steel plate rack 11 capable of storing steel plates to be rolled is provided on the side of the winding machine 13 away from the cylinder transport line 6, and a steel plate transfer device 12 capable of transferring the steel plates to the winding machine 13 is provided on the upper side of the steel plate rack 11. The steel plate transfer device 12 is configured to be able to slide horizontally and lift vertically, thereby transferring the steel plates to the winding machine 13 one by one, so that the steel plate loading work of the winding machine 13 can be carried out autonomously, further improving the automation level of the production line.

[0046] In order to ensure smooth loading of the steel plates and prevent interference between the loading work of the steel plate transfer device 12 and the steel plate rolling work of the reel 13, the transfer method of the steel plate transfer device 12 is magnetic suction.

[0047] As a further preferred embodiment, the roll forming system 1 also includes an arc plate cutting frame 16 which is arranged between the first bracket 1511 and the longitudinal seam welding device 15 and is located on the side of the first transfer arm 14 away from the cylinder transport line 6. The arc plate cutting frame 16 is configured to complete the cutting of the arc starting plate and the arc ending plate at both ends after the roll welding is completed. The first transfer arm 14 is configured to complete the transfer of the roll between the arc plate cutting frame 16 and the longitudinal seam welding device 15, so that after the longitudinal seam welding is completed, the cutting of the arc starting plate and the arc ending plate can be carried out autonomously.

[0048] More preferably, in order to make the longitudinal seam welding work compatible with the reel speed of the reel 13 and prevent the reel 13 from being out of material and affecting the production speed of the cylinder, the longitudinal seam welding device 15 is provided with at least two groups.

[0049] Specifically speaking, the structure of the longitudinal seam welding device 15 is Figure 3 The invention comprises a first welding frame 151 and a first welding arm 152 arranged on one side of the first welding frame 151 along the transport direction of the cylinder transport line 6, wherein the first welding frame 151 comprises a first bracket 1511 and a rotating drum 1512 arranged transversely on its upper side and capable of rotating, the rotating drum 1512 comprises an annular plate arranged oppositely at both ends, and a plurality of guide components arranged circumferentially between the two annular plates, the guide components comprise connecting strips arranged oppositely and connected to the two annular plates at both ends, and a plurality of rollers are arranged between the two connecting strips along the length direction of the connecting strips. Wheel, the axis of the roller is perpendicular to the axis of the rotating drum 1512, and the middle outer ring is an arc groove structure that cooperates with the reel, there is a welding gap between the adjacent guide components, and the first transfer arm 14 is configured to be able to insert the reel from one end of the rotating drum 1512 into the rotating drum 1512 under the action of the guide component, and the first welding arm 152 is configured to be able to complete the welding work on the outside of the rotating drum 1512 through the welding gap, and can extend from one end of the rotating drum 1512 to the inside of the reel to complete the welding work on the inside of the longitudinal seam.

[0050] In this embodiment, as another core technical concept of the present invention, combined with Figure 4 and Figure 7The end cover welding system 2 includes a bottom cover welding device 21 and a top cover welding device 22 which are sequentially arranged along the transport direction of the steel cylinder transport line 6, wherein the bottom cover welding device 21 is arranged to align the bottom cover with one end of the reel, and complete the welding work of the inner and outer seams of the docking position between the bottom cover and the reel, so as to ensure the welding firmness of the bottom cover and the reel, and the top cover welding device 22 is arranged to align the top cover with the other end of the reel, and complete the welding work of the inner and outer seams of the docking position between the top cover and the reel, so as to ensure the welding firmness of the top cover and the reel, and finally ensure the welding firmness of the main part of the steel cylinder (reel, bottom cover, top cover), and further ensure the molding quality of the steel cylinder.

[0051] Specifically speaking about the structure of the bottom cover welding device 21 and the top cover welding device 22, the bottom cover welding device 21 and the top cover welding device 22 respectively include a bottom cover conveying line 211 and a top cover conveying line 221, and the bottom cover conveying line 211 and the top cover conveying line 221 are both arranged perpendicular to the cylinder conveying line 6, and a second welding frame 212 and a fourth welding frame 222 are respectively provided on one side of the bottom cover conveying line 211 and the top cover conveying line 221, and a second welding arm 213 and a fourth welding arm 223 are respectively provided on the side of the second welding frame 212 and the fourth welding frame 222 away from the cylinder conveying line 6, wherein the second welding frame 212 and the fourth welding frame 222 are arranged to be able to pick up the bottom cover on the bottom cover conveying line 211 and the top cover on the top cover conveying line 221, and to clamp the bottom cover and the top cover at the end of the reel, and the second welding arm 213 and the fourth welding arm 223 are arranged to be able to complete the outer seam welding work of the bottom cover and the reel, and the top cover and the reel at the tight position.

[0052] Further, with regard to the structures of the second welding frame 212 and the fourth welding frame 222, Figure 5 , which include a second frame 2121, a first rotating shaft 2122 and a second rotating shaft 2123 are coaxially arranged on both sides of the upper part of the second frame 2121, the axes of the first rotating shaft 2122 and the first rotating shaft 2122 are parallel to the transport direction of the cylinder transport line 6, and the first rotating shafts 2122 of the second welding frame 212 and the fourth welding frame 222 are respectively arranged close to the bottom cover transport line 211 and the top cover transport line 221, and the first rotating shaft 2122 and the second rotating shaft 2123 are both transmission-connected with a first motor, wherein the first rotating shaft 2122 is arranged to be able to be telescopic along the axial direction and a first connecting seat 2124 is provided at the outer end.

[0053] Furthermore, the second welding frame 212 and the fourth welding frame 222 also include a first clamping arm 2125 and a second clamping arm 2126, wherein one end of the first clamping arm 2125 is hingedly connected to the first connecting seat 2124, and the rotation axis is perpendicular to the first rotating shaft 2122, and the other end is rotatably provided with a first suction cup 2127 on the inner side, and one side of the first connecting seat 2124 and the outer side of the end of the first clamping arm 2125 away from the first connecting seat 2124 are respectively provided with a second motor and a third motor capable of driving the first clamping arm 2125 and the first suction cup 2127 to rotate, and one end of the second clamping arm 2126 is vertically connected to the outer end of the second rotating shaft 2123. Then, a first clamping disk 2128 is provided on the inner side of the other end, and the first clamping arm 2125 can be driven to move through the action of the first motor and the second motor, and the first suction cup 2127 on the first clamping arm 2125 can independently complete the picking up of the bottom cover and the top cover on the bottom cover transport line 211 and the top cover transport line 221, and under the telescopic action of the first rotating shaft 2122, the bottom cover, the top cover and the reel are pressed tightly, and under the action of the third motor, the clamped reel, the bottom cover and the top cover can be driven to rotate around the coaxial line, and cooperate with the second welding arm 213 and the fourth welding arm 223 to respectively complete the welding work of the outer circle of the abutting position between the bottom cover and the reel and the abutting position between the top cover and the reel.

[0054] As for the welding method of the inner seam of the bottom cover and the top cover against the roll, Figure 6 The bottom cover welding device 21 and the top cover welding device 22 also include a third welding frame 214 and a fifth welding frame 224 respectively arranged on one side of the second welding frame 212 and the fourth welding frame 222 along the transport direction of the cylinder transport line 6, and the third welding frame 214 and the fifth welding frame 224 are also respectively provided with a third welding arm 215 and a fifth welding arm 225 on the side away from the cylinder transport line 6. The third welding frame 214 is configured to be able to clamp the reel with the bottom cover, and the third welding arm 215 is configured to be able to extend from the end of the reel away from the bottom cover into the reel to complete the welding work of the inner seam of the bottom cover and the reel at the tight position, and the fifth welding frame 224 is configured to be able to clamp the bottom cover and the top cover at both ends of the reel, and the fifth welding arm 225 is configured to be able to extend from the middle opening of the top cover into the reel to complete the welding work of the inner seam of the top cover and the reel at the tight position.

[0055] In order to make the inner seam welding work compatible with the efficiency of the outer seam welding work and prevent the situation of waiting for materials, at least two groups of the third welding frame 214 and the fifth welding frame 224 are provided along the transport direction of the cylinder transport line 6, and at least two of the third welding arms 215 and the fifth welding arms 225 are provided corresponding to the third welding frame 214 and the fifth welding frame 224.

[0056] Furthermore, specifically speaking of the structures of the third welding frame 214 and the fifth welding frame 224, they both include a third frame body 2141, and a third rotating shaft 2142 and a fourth rotating shaft 2143 are coaxially provided on both sides of the upper part of the third frame body 2141, and the axes of the third rotating shaft 2142 and the fourth rotating shaft 2143 are parallel to the transport direction of the cylinder transport line 6, and the third rotating shaft 2142 and the fourth rotating shaft 2143 are both transmission-connected to a fourth motor, wherein the third rotating shaft 2142 and / or the fourth rotating shaft 2143 can be extended and retracted along the axial direction.

[0057] Furthermore, the third welding frame 214 and the fifth welding frame 224 also include a third clamping arm 2144 and a fourth clamping arm 2145, wherein one end of the third clamping arm 2144 and the fourth clamping arm 2145 are respectively vertically connected to the outer ends of the third rotating shaft 2142 and the fourth rotating shaft 2143, and the inner sides of the other ends are respectively provided with a second suction cup 2146 and a second clamping disk 2147, and the outer side of the end of the third clamping arm 2144 away from the third rotating shaft 2142 is also provided with a fifth motor capable of driving the second suction cup 2146 to rotate, the second clamping disk 2147 is a circular ring structure, and the fourth clamping arm 2145 is provided with a through opening corresponding to the position of the second clamping disk 2147.

[0058] Based on the above structure:

[0059] The welding process of the inner seam of the bottom cover and the drum at the abutting position is as follows: the bottom cover and the drum can be clamped by the telescopic movement of the third rotating shaft 2142 and / or the fourth rotating shaft 2143 on the third welding frame 214, and the clamped drum and the bottom cover can be driven to rotate together under the action of the fifth motor, and the third welding arm 215 can pass through the through opening and extend from the end of the drum away from the bottom cover to the inside of the drum, so as to complete the welding work of the inner circle of the bottom cover and the drum at the abutting position;

[0060] The welding process of the inner seam of the top cover and the reel at the abutting position is as follows: through the telescopic movement of the third rotating shaft 2142 and / or the fourth rotating shaft 2143 on the fifth welding frame 224, the top cover and the reel can be clamped, and under the action of the fifth motor, the clamped reel, the bottom cover and the top cover can be driven to rotate together, and the fifth welding arm 225 can pass through the through opening from the middle opening of the top cover into the reel, completing the welding work of the inner circle of the abutting position between the top cover and the reel.

[0061] In this embodiment, with respect to the structure of the accessory welding system 3, Figure 8, which includes a bottom support transportation line 31 and a top nozzle transportation line 32 arranged on one side of the cylinder transportation line 6, the bottom support transportation line 31 and the top nozzle transportation line 32 are both arranged perpendicular to the cylinder transportation line 6, and a sixth welding frame 331 and a sixth welding arm 332 are arranged between them, the sixth welding frame 331 is arranged close to the cylinder transportation line 6, and the sixth welding arm 332 is located on the side of the sixth welding frame 331 away from the cylinder transportation line 6, the sixth welding frame 331 is arranged to be able to pick up the bottom support and the top nozzle of the bottom support transportation line 31 and the top nozzle transportation line 32, and can clamp and fix the bottom support and the top nozzle on the outside of the bottom cover and the top cover respectively, the sixth welding arm 332 is arranged to complete the welding work of the bottom support and the bottom cover, and the top nozzle and the top cover, and finally complete the welding work of the entire cylinder.

[0062] Specifically speaking, the structure of the sixth welding frame 331 is combined with Fig. 9 , which includes a fourth frame 3311, and a fifth rotating shaft 3312 and a sixth rotating shaft 3313 are coaxially provided on both sides of the upper part of the fourth frame 3311, the axes of the fifth rotating shaft 3312 and the sixth rotating shaft 3313 are parallel to the transport direction of the cylinder transport line 6, and the fifth rotating shaft 3312 and the sixth rotating shaft 3313 are both transmission-connected with a sixth motor, the fifth rotating shaft 3312 and / or the sixth rotating shaft 3313 are configured to be able to extend and retract along the axial direction, and the outer ends of the fifth rotating shaft 3312 and the sixth rotating shaft 3313 are each provided with a second connecting seat 3314.

[0063] Furthermore, the sixth welding frame 331 also includes a fifth clamping arm 3315 and a sixth clamping arm 3316, one end of the fifth clamping arm 3315 and the sixth clamping arm 3316 are respectively hingedly connected to the second connecting seat 3314 at the outer end of the fifth rotating shaft 3312 and the sixth rotating shaft 3313, and the rotation axis is perpendicular to the axis of the rotating shaft, and the inner side of the other end is respectively provided with a third suction cup 3317 and a fourth suction cup 3318, and one side of the second connecting seat 3314 is also provided with a seventh motor capable of driving the fifth clamping arm 3315 and the sixth clamping arm 3316 to rotate, and the outer side of one end of the fifth clamping arm 3315 and / or the sixth clamping arm 3316 away from the second connecting seat 3314 is also provided with a third suction cup 3317 and / or a fourth suction cup 3318. The eighth motor which rotates the fourth suction cup 3318 can drive the fifth clamping arm 3315 and the sixth clamping arm 3316 to move through the actions of the sixth motor and the seventh motor, and can independently complete the picking up of the bottom support and the top nozzle on the bottom support transportation line 31 and the top nozzle transportation line 32 through the third suction cup 3317 and the fourth suction cup 3318 on the fifth clamping arm 3315 and the sixth clamping arm 3316, and under the telescopic action of the fifth rotating shaft 3312 and / or the sixth rotating shaft 3313, the bottom support and the top nozzle are respectively pressed against the outer sides of the bottom cover and the top cover, and under the action of the eighth motor, the clamped bottom support, reel, bottom cover, top cover and top nozzle are driven to rotate together, and cooperate with the sixth welding arm 332 to complete the welding work of the bottom support and the bottom cover, and the top nozzle and the top cover.

[0064] In this embodiment, combined with Fig.10 As for the structure of the leakage detection system 4, it includes an observation pool 41 arranged outside the cylinder transportation line 6, and an inflation device (not shown) capable of injecting air into the cylinder through a back nozzle. A cylinder transfer device 43 capable of completing the transfer of cylinders between the cylinder transportation line 6 and the observation pool 41 is also provided on the upper side of the observation pool 41. The welded cylinders can be transferred to the observation system under the action of the cylinder transfer device 43. By observing whether there are bubbles in the observation pool 41, it can be judged whether the cylinder is formed properly, thereby ultimately ensuring the factory quality of the cylinders.

[0065] As a preferred embodiment, the leakage detection system 4 also includes a transfer rack 42, and the cylinder transportation line 6 is arranged through the transfer rack 42. The observation water pool 41 is located on both sides of the cylinder transportation line 6. The transfer rack 42 includes a main frame and two cross bars arranged opposite to each other at its upper end. The two cross bars are arranged along the transportation direction of the cylinder transportation line 6 and can slide in a direction perpendicular to themselves. The cylinder transfer device 43 is arranged on the cross bar, which can slide along the length direction of the cross bar and can move up and down to complete the transfer of the cylinder between the transportation line and the observation water pool 41. The water pools are arranged on both sides, so that the leakage detection of the cylinder can be carried out on both sides of the cylinder transportation line 6, which significantly improves the detection efficiency.

[0066] As a further preference, in order to further improve the detection efficiency, the cylinder transfer device 43 is provided with multiple groups along the length direction of the cross bar.

[0067] In this embodiment, combined with Fig.11 As for the structure of the storage system 5, it includes a second transfer arm 51 and a storage rack 52 arranged at the end of the cylinder transportation line 6. The second transfer arm 51 is configured to transfer the cylinders that have completed leakage detection on the cylinder transportation line 6 to the storage rack 52.

[0068] As a preferred embodiment, at least two storage racks 52 are provided, so that the steel cylinders with qualified leakage test results and the steel cylinders with unqualified leakage test results can be stored separately, thereby ensuring the factory quality of the steel cylinders.

Claims

1. Acetylene cylinder intelligent welding production line, characterized by: It comprises a steel cylinder transport line (6) and a roll forming system (1), an end cover welding system (2), an accessory welding system (3), a leakage detection system (4) and a storage system (5) which are sequentially arranged on one side of the steel cylinder transport line (6) in the transport direction of the steel cylinder transport line (6); The roll forming system (1) comprises a roll machine (13) arranged at one side of the head end of the steel cylinder conveying line (6), which is configured to roll the steel plate into a cylindrical roll with two ends connected. One side of the roll machine (13) is also provided with a longitudinal seam welding device (15), and a first transfer arm (14) capable of completing the transfer of the roll between the roll machine (13), the longitudinal seam welding device (15) and the steel cylinder conveying line (6), and the longitudinal seam welding device (15) is configured to complete the welding work of the inner and outer sides of the longitudinal seam of the roll. When the longitudinal seam welding device (15) performs the welding work at the butt joint position of the steel plate, it performs the welding work from the inner and outer sides of the longitudinal seam, thereby effectively ensuring the welding firmness and welding quality of the roll; The end cover welding system (2) comprises a bottom cover welding device (21) and a top cover welding device (22) which are sequentially arranged along the transport direction of the steel cylinder transport line (6), wherein the bottom cover welding device (21) is arranged to align the bottom cover with one end of the drum and complete the welding work of the inner and outer seams at the docking position of the bottom cover and the drum, thereby ensuring the welding firmness of the bottom cover and the drum, and the top cover welding device (22) is arranged to align the top cover with the other end of the drum and complete the welding work of the inner and outer seams at the docking position of the top cover and the drum, thereby ensuring the welding firmness of the top cover and the drum; The bottom cover welding device (21) and the top cover welding device (22) respectively comprise a bottom cover transport line (211) and a top cover transport line (221); a second welding frame (212) and a fourth welding frame (222) are respectively provided on one side of the bottom cover transport line (211) and the top cover transport line (221); The second welding frame (212) and the fourth welding frame (222) both comprise a second frame body (2121), on both sides of the upper part of which a first rotating shaft (2122) and a second rotating shaft (2123) are coaxially arranged, and the first rotating shaft (2122) and the second rotating shaft (2123) are both transmission-connected to a first motor, and the first rotating shaft (2122) can be extended and retracted along the axial direction and a first connecting seat (2124) is arranged at the outer end; The second welding frame (212) and the fourth welding frame (222) each further include a first clamping arm (2125) and a second clamping arm (2126); One end of the first clamping arm (2125) is hingedly connected to the first connecting seat (2124), and the rotation axis is perpendicular to the first rotating shaft (2122); the other end is rotatably provided with a first suction cup (2127) on the inner side; one side of the first connecting seat (2124) and the outer side of one end of the first clamping arm (2125) away from the first connecting seat (2124) are respectively provided with a second motor and a third motor capable of driving the first clamping arm (2125) and the first suction cup (2127) to rotate; One end of the second clamping arm (2126) is vertically connected to the outer end of the second rotating shaft (2123), and the inner side of the other end is provided with a first clamping disc (2128); The accessory welding system (3) comprises a bottom bracket transport line (31) and a top nozzle transport line (32) arranged on one side of the steel cylinder transport line (6); a sixth welding frame (331) and a sixth welding arm (332) are arranged between the bottom bracket transport line (31) and the top nozzle transport line (32); the sixth welding frame (331) is configured to pick up the bottom bracket and the top nozzle of the bottom bracket transport line (31) and the top nozzle transport line (32), and to clamp and fix the bottom bracket and the top nozzle on the outer sides of the bottom cover and the top cover respectively; the sixth welding arm (332) is configured to complete the welding work of the bottom bracket and the bottom cover, and the top nozzle and the top cover, and finally complete the welding work of the steel cylinder as a whole; The leakage detection system (4) comprises an observation pool (41) arranged outside the steel cylinder transportation line (6), and an air filling device capable of injecting air into the steel cylinder through a back nozzle, and a steel cylinder transfer device (43) capable of completing the transfer of steel cylinders between the steel cylinder transportation line (6) and the observation pool (41) is also arranged on the upper side of the observation pool (41); The storage system (5) comprises a second transfer arm (51) and a storage rack (52) arranged at the end of a steel cylinder transport line (6); the second transfer arm (51) is arranged to be able to transfer steel cylinders on the steel cylinder transport line (6) to the storage rack (52).

2. The acetylene cylinder intelligent welding production line according to claim 1 is characterized in that: The longitudinal seam welding device (15) comprises a first welding frame (151) and a first welding arm (152) on one side thereof; The first welding frame (151) comprises a first bracket (1511) and a rotating drum (1512) disposed laterally on its upper side and capable of rotating, and the first transfer arm (14) is configured to be able to insert the reel from one end of the rotating drum (1512) into the rotating drum (1512); The first welding arm (152) is configured to complete welding work on the outside of the longitudinal seam on the outside of the rotating drum (1512), and to extend from one end of the rotating drum (1512) into the interior of the reel to complete welding work on the inside of the longitudinal seam.

3. The acetylene cylinder intelligent welding production line according to claim 1 or 2 is characterized in that: A steel plate rack (11) capable of storing the steel plates to be rolled is also provided on one side of the winding machine (13), and a steel plate transfer device (12) capable of transferring the steel plates to the winding machine (13) is provided on the upper side of the steel plate rack (11).

4. The acetylene cylinder intelligent welding production line according to claim 3 is characterized in that: The steel plate transfer device (12) uses a magnetic transfer method.

5. The acetylene cylinder intelligent welding production line according to claim 1 or 2, characterized in that: The roll forming system (1) also includes an arc plate cutting frame (16) capable of completing the cutting of arc starting plates and arc ending plates, and the first transfer arm (14) is configured to complete the transfer of the roll between the arc plate cutting frame (16) and the longitudinal seam welding device (15).

6. The acetylene cylinder intelligent welding production line according to claim 1 is characterized in that: A second welding arm (213) and a fourth welding arm (223) are respectively provided on one side of the second welding frame (212) and the fourth welding frame (222); The second welding frame (212) and the fourth welding frame (222) are configured to respectively pick up the bottom cover on the bottom cover conveying line (211) and the top cover on the top cover conveying line (221), and to clamp and fix the bottom cover and the top cover at the end of the reel, and the second welding arm (213) and the fourth welding arm (223) are configured to respectively complete the outer seam welding work of the bottom cover and the reel, and the top cover and the reel at the close contact position.

7. The acetylene cylinder intelligent welding production line according to claim 6 is characterized in that: The bottom cover welding device (21) and the top cover welding device (22) further include a third welding frame (214) and a fifth welding frame (224) respectively arranged on one side of the second welding frame (212) and the fourth welding frame (222) along the transport direction of the cylinder transport line (6), and a third welding arm (215) and a fifth welding arm (225) are respectively arranged on one side of the third welding frame (214) and the fifth welding frame (224); The third welding frame (214) is configured to be able to clamp the reel with the bottom cover, and the third welding arm (215) is configured to be able to extend from the end of the reel away from the bottom cover into the reel to complete the welding work of the inner seam of the position where the bottom cover and the reel are in close contact; The fifth welding frame (224) is configured to clamp the bottom cover and the top cover at both ends of the reel, and the fifth welding arm (225) is configured to extend from the middle opening of the top cover into the reel to complete the welding work of the inner seam of the top cover and the reel at the tight position.

8. The acetylene cylinder intelligent welding production line according to claim 7 is characterized in that: The third welding frame (214) and the fifth welding frame (224) both comprise a third frame body (2141), on both sides of the upper part of which a third rotating shaft (2142) and a fourth rotating shaft (2143) are coaxially arranged, and the third rotating shaft (2142) and the fourth rotating shaft (2143) are both transmission-connected to a fourth motor, and the third rotating shaft (2142) and / or the fourth rotating shaft (2143) can be extended and retracted along the axial direction; The third welding frame (214) and the fifth welding frame (224) both further include a third clamping arm (2144) and a fourth clamping arm (2145); One end of the third clamping arm (2144) and the fourth clamping arm (2145) are respectively vertically connected to the outer ends of the third rotating shaft (2142) and the fourth rotating shaft (2143), and the inner sides of the other ends are respectively provided with a second suction cup (2146) and a second clamping disc (2147), and the outer side of one end of the third clamping arm (2144) away from the third rotating shaft (2142) is also provided with a fifth motor capable of driving the second suction cup (2146) to rotate; The second clamping disk (2147) is a circular ring structure, and the fourth clamping arm (2145) is provided with a through opening at a position corresponding to the second clamping disk (2147).

9. The acetylene cylinder intelligent welding production line according to claim 1 is characterized in that: The sixth welding frame (331) comprises a fourth frame body (3311), on both sides of the upper part of which a fifth rotating shaft (3312) and a sixth rotating shaft (3313) are coaxially arranged, and the fifth rotating shaft (3312) and the sixth rotating shaft (3313) are both transmission-connected to a sixth motor, the fifth rotating shaft (3312) and / or the sixth rotating shaft (3313) can be extended and retracted along the axial direction, and the outer ends of the fifth rotating shaft (3312) and the sixth rotating shaft (3313) are both provided with a second connecting seat (3314); The sixth welding frame (331) further comprises a fifth clamping arm (3315) and a sixth clamping arm (3316); One end of the fifth clamping arm (3315) and the sixth clamping arm (3316) are respectively hingedly connected to the second connecting seat (3314) at the outer end of the fifth rotating shaft (3312) and the sixth rotating shaft (3313), and the rotation axis is perpendicular to the axis of the rotating shaft, and the inner side of the other end is provided with a third suction cup (3317) and a fourth suction cup (3318); A seventh motor capable of driving the fifth clamping arm (3315) and the sixth clamping arm (3316) to rotate is also provided on one side of the second connecting seat (3314), and an eighth motor capable of driving the third suction cup (3317) and / or the fourth suction cup (3318) to rotate is also provided on the outer side of one end of the fifth clamping arm (3315) and / or the sixth clamping arm (3316) away from the second connecting seat (3314).

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