Welding system

Abstract

The utility model provides a welding system which comprises a conveying belt, a plate grabbing device, a material disc and a welding device, and the plate grabbing device comprises a control table and a mechanical arm rotationally installed on the control table; the charging tray is used for stacking a plurality of plate-shaped metal sheets; the welding equipment comprises a rack, a profiling electrode, a feeding module, a bending module, a welding module and an electrode plate, the profiling electrode, the feeding module, the bending module and the welding module are all installed on the rack, and the electrode plate is installed on the profiling electrode; when welding is needed, the mechanical arm can grab the plate-shaped metal thin plate on the material disc and transfer the plate-shaped metal thin plate to the feeding module in the welding equipment, the bending module jacks up the plate-shaped metal thin plate in the feeding module to the profiling electrode, and the plate-shaped metal thin plate is bent into a pipe shape under the cooperation of the profiling electrode. The welding module can weld the tubular metal sheet, and the feeding module can buckle the welded tubular metal sheet out of the profiling electrode so as to push the welded tubular metal sheet to the conveying belt.

Description

TECHNICAL FIELD

[0001] The utility model belongs to automatic welding equipment technical field, especially, relate to a kind of welding system. BACKGROUND

[0002] At present, metal sheet welding on market mainly uses artificial rolling electrode to weld, specific steps are as follows, first, manually bend plate-shaped metal sheet into tubular, then use rolling electrode to aim at the joint of tubular metal sheet, and give rolling electrode high-voltage direct current, roll forward, weld the joint of tubular metal sheet, to obtain final metal pipe product, and the welding principle is similar to resistance welding.

[0003] However, the capacity of using artificial plate-shaped metal sheet to weld final metal pipe product is too low, operation is complicated, time-consuming is too long, waste manpower and material resources, not suitable for large-scale promotion. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of welding system, to solve the capacity of using artificial plate-shaped metal sheet to weld final metal pipe product is too low, operation is complicated, time-consuming is too long, waste manpower and material resources, not suitable for large-scale promotion technical problem.

[0005] The utility model is realized as follows: a kind of welding system, comprising:

[0006] Conveying belt;

[0007] Plate grabbing equipment, the plate grabbing equipment includes control console and mechanical hand rotatably installed on the control console, the mechanical hand is electrically connected with the control console, the mechanical hand has multiple degrees of freedom, the control console is close to the conveying belt and is set;

[0008] At least one tray, the tray is used to stack multiple plate-shaped metal sheets, and the tray is close to the plate grabbing equipment and is set;

[0009] At least one welding equipment, the welding equipment includes rack, profiling electrode, feeding module, bending module, welding module and electrode plate matched with the welding module, the profiling electrode, the feeding module, the bending module and the welding module are all installed on the rack, the electrode plate is installed on the profiling electrode, and the rack is close to the conveying belt and is set;

[0010] When welding is needed, the robot can grab the plate-shaped metal sheet on the tray and move it to the feeding module in the welding device, the press-bending module lifts the plate-shaped metal sheet in the feeding module on the profiling electrode, and bends the plate-shaped metal sheet into a tubular shape under the cooperation of the profiling electrode, the welding module can weld the joints of the tubular metal sheet, and the feeding module can push the welded tubular metal sheet out of the profiling electrode to push the welded tubular metal sheet onto the conveyor belt.

[0011] Optionally, the robot comprises a mechanical arm with multiple degrees of freedom and a jig for clamping the plate-shaped metal sheets one by one, one end of the mechanical arm is rotatably connected with the console, and the other end is connected with the jig, and the jig and the mechanical arm are electrically connected with the console.

[0012] Optionally, the jig comprises a first driving mechanism, a second driving mechanism, a platform frame body mounted on the output end of the first driving mechanism, a pushing piece mounted on the output end of the second driving mechanism, a first adsorption assembly for adsorbing one end of the plate-shaped metal sheet, and a second adsorption assembly for adsorbing the other end of the plate-shaped metal sheet, the first driving mechanism is fixed on the mechanical arm, the second driving mechanism, the first adsorption assembly and the second adsorption assembly are mounted on the platform frame body, and the second driving mechanism can drive the pushing piece to push the adsorbed excess plate-shaped metal sheet to move laterally.

[0013] Optionally, the feeding module comprises a third driving mechanism and a sliding table for receiving the plate-shaped metal sheet in the robot, the third driving mechanism is mounted on the rack, the sliding table is mounted on the output end of the third driving mechanism, and the sliding table is provided with a notch for the press-bending module to pass through.

[0014] Optionally, the sliding table comprises a push plate, a sliding plate for placing the plate-shaped metal sheet, and a plurality of positioning blocks for limiting the movement of the plate-shaped metal sheet, the push plate is fixed on the sliding plate, the push plate is provided with a first arc-shaped groove matched with the profiling electrode, the notch is provided on the sliding plate, and each positioning block is mounted on the sliding plate.

[0015] Optionally, the bending die set comprises a top pressing assembly and two opposite pressing assembly, the top pressing assembly comprises a fourth driving mechanism and a top seat installed on the output end of the fourth driving mechanism, the fourth driving mechanism is installed on the rack, the top seat is located below the profiling electrode, the top seat is provided with a second arc-shaped groove matched with the profiling electrode, the fourth driving mechanism can drive the top seat to lift the plate-shaped metal sheet to the profiling electrode, and the plate-shaped metal sheet is bent into a U shape under the cooperation of the profiling electrode;

[0016] The pressing assembly comprises a fifth driving mechanism and a pressing seat installed on the output end of the fifth driving mechanism, both the fifth driving mechanisms are installed on the rack, the profiling electrode is located between the two pressing seats, the pressing seat is provided with a third arc-shaped groove matched with the profiling electrode, and the two fifth driving mechanisms can respectively drive the corresponding pressing seat to act on the U-shaped metal sheet to bend the U-shaped metal sheet into a tubular shape.

[0017] Optionally, the welding die set comprises a sixth driving mechanism, a transmission assembly, a connecting plate and a welding machine assembly, the sixth driving mechanism is installed on the rack, the output end of the sixth driving mechanism is connected with the connecting plate through the transmission assembly, and the welding machine assembly is installed on the connecting plate and located above the profiling electrode.

[0018] Optionally, the welding machine assembly comprises a seventh driving mechanism and a rolling electrode used for welding the joint of the tubular metal sheet, the seventh driving mechanism is installed on the connecting plate, the rolling electrode is installed on the output end of the seventh driving mechanism, the seventh driving mechanism can drive the rolling electrode to run up and down, the top of the profiling electrode is provided with an embedding groove, and the electrode plate is installed in the embedding groove and corresponds to the rolling electrode.

[0019] Optionally, the welding device further comprises a human-computer interface, the human-computer interface is installed on the rack, and the conveying belt, the control console, the feeding die set, the bending die set and the welding die set are electrically connected with the human-computer interface.

[0020] Optionally, the welding device further comprises a guide seat, the guide seat is installed on the rack, the guide seat is provided with an inclined groove, one end of the inclined groove is located below the profiling electrode, and the other end corresponds to the conveying belt.

[0021] The utility model discloses a plurality of equipment is matched together and is used for replacing the previous manual work to bend the plate metal sheet into the tubular metal sheet and welds its joint, and the feeding, bending, welding, taking and transporting in the welding system, the whole process is low in the artificial participation degree, reduces the manual operation intensity, improves the production capacity, and the equipment operation is simple, saves manpower cost, and the automation degree is high, is suitable for wide range popularization. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the perspective drawing of the welding system provided by the utility model embodiment;

[0023] Figure 2 It is the perspective drawing of the grab plate equipment provided by the utility model embodiment;

[0024] Figure 3 It is the perspective drawing of the jig provided by the utility model embodiment;

[0025] Figure 4 It is the explosion view of Figure 3 ;

[0026] Figure 5 It is the perspective drawing of the tray provided by the utility model embodiment;

[0027] Figure 6 It is the explosion view of Figure 5 ;

[0028] Figure 7 It is the perspective drawing of the welding equipment provided by the utility model embodiment;

[0029] Figure 8 It is the perspective drawing of the rack and welding module combination provided by the utility model embodiment;

[0030] Figure 9 It is the perspective drawing of the feeding module provided by the utility model embodiment;

[0031] Figure 10 It is the perspective drawing of the top pressure subassembly provided by the utility model embodiment;

[0032] Figure 11 It is the explosion view of Figure 10 ;

[0033] Figure 12 It is the perspective drawing of the concave pressing subassembly provided by the utility model embodiment;

[0034] Figure 13 It is the perspective drawing of the welding module installed on the support plate provided by the utility model embodiment.

[0035] REFERENCE SIGNS:

[0036] 10, conveying belt; 20, grab plate device; 21, console; 22, manipulator; 23, mechanical arm; 24, jig; 241, first driving mechanism; 242, second driving mechanism; 243, platform frame body; 2431, flat plate; 2432, first guide rail; 2433, first sliding block; 2434, threaded hole; 244, pushing piece; 245, first adsorption assembly; 2451, first magnetic attraction piece; 246, second adsorption assembly; 2461, second positioning plate; 2462, second magnetic attraction piece; 247, handle; 30, tray; 31, bottom table; 311, containing space; 312, sliding hole; 32, transmission pair; 33, remote handle; 34, support; 35, first positioning plate; 36, limiting rod; 40, welding device; 41, rack; 411, support plate; 42, profiling electrode; 421, embedded groove; 43, feeding module; 431, third driving mechanism; 432, sliding table; 4321, notch; 4322, push plate; 4323, sliding plate; 4324, positioning block; 4325, first arc-shaped groove; 433, guide rod; 44, bending pressing module; 45, top pressing assembly; 451, fourth driving mechanism; 452, top seat; 4521, second arc-shaped groove; 4522, through hole; 4523, top pressing part; 4524, bottom plate; 453, pressing block; 4531, first plate body; 4532, second plate body; 46, concave pressing assembly; 461, fifth driving mechanism; 462, pressing seat; 4621, third arc-shaped groove; 47, welding module; 471, sixth driving mechanism; 472, transmission assembly; 473, link plate; 474, welding machine assembly; 4741, seventh driving mechanism; 4742, rolling electrode; 475, second guide rail; 476, second sliding block; 48, electrode plate; 49, human-computer interface; 491, guide-out seat; 492, inclined groove; 50, plate-shaped metal sheet; 60, tubular metal sheet. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical scheme and advantages of the utility model clearer, the utility model will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model.

[0038] It should be noted that when an element is referred to as "fixed to" or "provided on" another element, it can be directly on the other element or there can be a middle element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or there can be a middle element.

[0039] It should also be noted that the left, right, up, down and other orientation terms in the present embodiment are only relative concepts or are referenced to the normal use state of the product, and should not be considered as limiting.

[0040] As Figures 1 to 8 The utility model discloses a kind of welding systems, including conveying belt 10, grab plate equipment 20, at least one tray 30 and at least one welding equipment 40, the number of tray 30 and welding equipment 40 is two, grab plate equipment 20 includes control console 21 and mechanical hand 22 that is rotatably installed on control console 21, mechanical hand 22 is electrically connected with control console 21, mechanical hand 22 has multiple degrees of freedom, control console 21 is close to conveying belt 10 setting;Tray 30 is used to stack multiple sheet metal thin plates 50, tray 30 is close to grab plate equipment 20 setting, control console 21 is between two trays 30, sheet metal thin plate 50 is sheet steel net.

[0041] Welding equipment 40 includes rack 41, profiling electrode 42, feeding module 43, bending module 44, welding module 47 and electrode plate 48 matched with welding module 47, profiling electrode 42, feeding module 43, bending module 44 and welding module 47 are all installed on rack 41, electrode plate 48 is installed on profiling electrode 42, rack 41 is close to conveying belt 10 setting.

[0042] When needing welding, mechanical hand 22 can grab sheet metal thin plate 50 on tray 30, and it is moved to feeding module 43 in welding equipment 40, bending module 44 lifts sheet metal thin plate 50 in feeding module 43 on profiling electrode 42, and under the cooperation of profiling electrode 42, sheet metal thin plate 50 is bent into tubular shape, welding module 47 can weld the joint of tubular metal thin plate 60, feeding module 43 can buckle tubular metal thin plate 60 after welding from profiling electrode 42, to push tubular metal thin plate 60 after welding to conveying belt 10, the whole process is low degree of artificial participation, reduces manual operation intensity, improves production capacity.

[0043] In the embodiment, tray 30 includes bottom table 31, transmission pair 32, remote handle 33, support 34, first positioning plate 35 and multiple limiting rods 36, the number of limiting rod 36 is three, multiple sheet metal thin plates 50 are stacked on bottom table 31, bottom table 31 is equipped with open containing space 311 and multiple sliding holes 312 that are all communicated with containing space 311, support 34 is fixed in containing space 311, transmission pair 32 is installed on support 34, one end of transmission pair 32 is connected with remote handle 33, the other end is connected with first positioning plate 35, one part of multiple limiting rods 36 is fixed on the top of bottom table 31, another part is all fixed on first positioning plate 35 and passes through corresponding sliding hole 312, multiple limiting rods 36 can limit the two directions freedom of sheet metal thin plate 50 on bottom table 31, transmission pair 32 is ball screw transmission pair.

[0044] The mechanical arm 22 comprises a mechanical arm 23 with multiple degrees of freedom and a jig 24 for clamping the multiple sheet metal plates 50 one by one. One end of the mechanical arm 23 is rotatably connected to the console 21, and the other end is connected to the jig 24. The jig 24 and the mechanical arm 23 are both electrically connected to the console 21, so that the console 21 can control the mechanical arm 23 and the jig 24 to move, respectively.

[0045] The jig 24 comprises a first driving mechanism 241, a second driving mechanism 242, a platform frame 243, a pushing member 244, a first adsorption assembly 245 for adsorbing one end of the sheet metal plate 50, and a second adsorption assembly 246 for adsorbing the other end of the sheet metal plate 50. The first driving mechanism 241 is fixed on the mechanical arm 23. The platform frame 243 is installed on the output end of the first driving mechanism 241. The second driving mechanism 242, the first adsorption assembly 245, and the second adsorption assembly 246 are all installed on the platform frame 243. The pushing member 244 is installed on the output end of the second driving mechanism 242. In the specific separating process, when the first adsorption assembly 245 and the second adsorption assembly 246 adsorb multiple sheet metal plates 50, the second driving mechanism 242 can first drive the pushing member 244 to push the adsorbed excess sheet metal plates 50 to move horizontally, so as to push the excess sheet metal plates 50 away from the first adsorption assembly 245. Then, the second adsorption assembly 246 stops adsorbing the sheet metal plates 50. Under the action of gravity, the excess sheet metal plates 50 will fall back to the original position, leaving only the uppermost sheet metal plate 50 adsorbed by the first adsorption assembly 245. At this time, the second adsorption assembly 246 resumes adsorption, and the first adsorption assembly 245 and the second adsorption assembly 246 firmly adsorb the required sheet metal plate 50, so as to realize the separation of the adsorbed sheet metal plates 50. The first driving mechanism 241 is a pneumatic sliding table 432, and the second driving mechanism 242 is a telescopic pneumatic cylinder.

[0046] In some embodiments, the jig 24 further comprises a handle 247, the platform frame 243 comprises a flat plate 2431, a first guide rail 2432 and a plurality of first sliding blocks 2433, the flat plate 2431 is connected with the output end of the first driving mechanism 241, the first adsorption assembly 245 comprises a first magnetic adsorption piece 2451, the second adsorption assembly 246 comprises a second positioning plate 2461 and two second magnetic adsorption pieces 2462 which are both fixed on the second positioning plate 2461, the second driving mechanism 242, the first magnetic adsorption piece 2451 and each first sliding block 2433 are all mounted on the flat plate 2431, each first sliding block 2433 is in sliding fit connection with the first guide rail 2432, the second positioning plate 2461 is mounted on the first guide rail 2432, and the flat plate 2431 is provided with a through hole, the first guide rail 2432 is provided with a plurality of threaded holes 2434, the handle 247 is connected with one of the threaded holes 2434 after penetrating through the through hole, so as to adjust the distance between the first adsorption assembly 245 and the second adsorption assembly 246, and the first magnetic adsorption piece 2451 and the second magnetic adsorption piece 2462 are both magnetic adsorption cylinders.

[0047] Please further refer to Figure 1 、 Figure 2 , and Figures 7 to 13 , the feeding module 43 comprises a third driving mechanism 431, a sliding table 432 for receiving the plate-shaped metal sheet 50 in the mechanical arm 22 and two guide rods 433 which are both fixed on the rack 41, the third driving mechanism 431 is mounted on the rack 41, the sliding table 432 is mounted on the output end of the third driving mechanism 431, the guide rods 433 are arranged in parallel with the profiling electrode 42, the projection of the profiling electrode 42 on the rack 41 is located between the projections of the two guide rods 433 on the rack 41, the sliding table 432 is slidingly installed on the two guide rods 433, and the sliding table 432 is provided with a gap 4321 for the press-bending module 44 to penetrate, the mechanical arm 22 can place the plate-shaped metal sheet 50 on the sliding table 432 and partially cover the gap 4321, and the third driving mechanism 431 can drive the sliding table 432 and the plate-shaped metal sheet 50 thereon to reciprocatingly run along the length direction of the profiling electrode 42, i.e. in the longitudinal direction, and the third driving mechanism 431 is a telescopic cylinder.

[0048] The sliding table 432 comprises a push plate 4322, a sliding plate 4323 for placing the plate-shaped metal sheet 50 and a plurality of positioning blocks 4324 for limiting the movement of the plate-shaped metal sheet 50, the sliding plate 4323 is slidingly installed on the two guide rods 433, the push plate 4322 is fixed on the sliding plate 4323, the push plate 4322 is provided with a first arc-shaped groove 4325 matched with the profiling electrode 42, the gap 4321 is arranged on the sliding plate 4323, and each positioning block 4324 is mounted on the sliding plate 4323, so that the third driving mechanism 431 can use the push plate 4322 on the sliding table 432 to knock off the final product from the profiling electrode 42, thereby avoiding manual taking of the final product.

[0049] The bending die set 44 comprises a top pressing assembly 45 and two opposite pressing assemblies 46. The top pressing assembly 45 comprises a fourth driving mechanism 451 and a top base 452 installed on the output end of the fourth driving mechanism 451. The fourth driving mechanism 451 is installed on the frame 41, and the top base 452 is located below the profiling electrode 42. The top base 452 is provided with a second arc-shaped groove 4521 matched with the profiling electrode 42. The fourth driving mechanism 451 can drive the top base 452 to lift the plate-shaped metal sheet 50 from the gap 4321 to the profiling electrode 42, and bend the plate-shaped metal sheet 50 into a U shape under the cooperation of the profiling electrode 42. The fourth driving mechanism 451 is a telescopic air cylinder.

[0050] The top pressing assembly 45 further comprises an elastic member and a pressing block 453. The pressing block 453 is in a "T" shape structure. The top base 452 is provided with a receiving space, a through hole 4522 and the second arc-shaped groove 4521. The second arc-shaped groove 4521 is located at the top of the top base 452. The receiving space is located in the interior of the top base 452. One end of the through hole 4522 is communicated with the second arc-shaped groove 4521, and the other end is communicated with the receiving space. The elastic member is located in the receiving space. One end of the pressing block 453 is slidingly installed in the receiving space and abuts against the elastic member, and the other end passes through the through hole 4522 and protrudes into the second arc-shaped groove 4521. The pressing block 453 can be lifted in advance to prevent the plate-shaped metal sheet 50 from moving when the top base 452 rises under the action of the elastic member. The elastic member can be a spring.

[0051] In some embodiments, the top base 452 comprises a top pressing part 4523 and a bottom plate 4524. The bottom plate 4524 is connected with the output end of the fourth driving mechanism 451. The top pressing part 4523 and the bottom plate 4524 enclose the receiving space. The through hole 4522 and the second arc-shaped groove 4521 are both arranged on the top pressing part 4523. The pressing block 453 comprises a first plate body 4531 and a second plate body 4532 perpendicularly connected with the first plate body 4531. The width of the first plate body 4531 is greater than that of the second plate body 4532. The first plate body 4531 is located in the receiving space and abuts against the elastic member. The second plate body 4532 passes through the through hole 4522 and extends into the second arc-shaped groove 4521 under the action of the elastic member.

[0052] The pressing assembly 46 comprises a fifth driving mechanism 461 and a pressing base 462 installed on the output end of the fifth driving mechanism 461. Two fifth driving mechanisms 461 are both installed on the frame 41. The profiling electrode 42 is in a columnar shape, and is located between the two pressing bases 462. The pressing base 462 is provided with a third arc-shaped groove 4621 matched with the profiling electrode 42. The two fifth driving mechanisms 461 can respectively drive the corresponding pressing bases 462 to act on the U-shaped metal sheet to bend the U-shaped metal sheet into a tubular shape. The fifth driving mechanism 461 is a telescopic air cylinder.

[0053] The welding module 47 comprises a sixth driving mechanism 471, a transmission assembly 472, a connecting plate 473 and a welding assembly 474. The sixth driving mechanism 471 is a servo motor, and the transmission assembly 472 is a ball screw transmission pair. Both the sixth driving mechanism 471 and the transmission assembly 472 are mounted on the support plate 411 of the rack 41. The output end of the sixth driving mechanism 471 is connected with the connecting plate 473 through the transmission assembly 472. The welding assembly 474 is mounted on the connecting plate 473 and located above the profiling electrode 42. The sixth driving mechanism 471 can drive the welding assembly 474 to reciprocate along the length direction of the electrode plate 48, i.e. the longitudinal direction. The electrode plate 48 is made of a material with good wear resistance and electrical conductivity, and can be used as an electrode of a contact welding point.

[0054] The welding assembly 474 comprises a seventh driving mechanism 4741 and a rolling electrode 4742 for welding the joint of the tubular metal sheet 60. The seventh driving mechanism 4741 is mounted on the connecting plate 473, and the rolling electrode 4742 is mounted on the output end of the seventh driving mechanism 4741. The seventh driving mechanism 4741 can drive the rolling electrode 4742 to move up and down, so as to adjust the position between the rolling electrode 4742 and the tubular metal sheet 60. The rolling electrode 4742 is pressed to the joint of the tubular metal sheet 60 to tightly adhere to each other. High-voltage direct current is supplied to the rolling electrode 4742, and the rolling electrode 4742 is driven to roll forward by the sixth driving mechanism 471 to complete the joint welding of the tubular metal sheet 60. The welding principle is resistance welding, and the seventh driving mechanism 4741 is a telescopic air cylinder.

[0055] The top of the profiling electrode 42 is provided with an embedding groove 421, and the electrode plate 48 is mounted in the embedding groove 421 and arranged correspondingly with the rolling electrode 4742, so as to facilitate the replacement of the electrode plate 48 at any time.

[0056] In some embodiments, the welding module 47 further comprises two second guide rails 475 and a plurality of second sliding blocks 476 mounted on the two second guide rails 475. The two second guide rails 475 are fixed on the support plate 411 at intervals. Each second sliding block 476 is connected with the connecting plate 473, so that the connecting plate 473 can slide more stably relative to the support plate 411. The sixth driving mechanism 471 can drive the welding assembly 474 to reciprocate along the length direction of the support plate 411.

[0057] The welding device 40 further comprises a human-computer interface 49 mounted on the rack 41. The conveying belt 10, the control console 21, the feeding module 43, the bending module 44 and the welding module 47 are electrically connected with the human-computer interface 49. By operating the buttons on the human-computer interface 49, the corresponding driving operation can be realized, and the labor intensity can be reduced.

[0058] In some embodiments, the welding device 40 further comprises a foot switch electrically connected with the human-machine interface 49, which can replace the buttons on the human-machine interface 49 to improve work efficiency.

[0059] The welding device 40 further comprises a guide seat 491 mounted on the frame 41, and the guide seat 491 is provided with a chute 492, one end of the chute 492 is located below the profiling electrode 42, and the chute 492 is used to receive the welded tubular metal sheet 60, and the other end of the chute 492 is arranged corresponding to the conveying belt 10 to guide the welded tubular metal sheet 60 onto the conveying belt 10.

[0060] The method for welding the plate-shaped metal sheet 50 by the welding system is as follows:

[0061] Step S101, feeding; first, the operator places the stacked plate-shaped metal sheet 50 on the tray 30, starts the system, and the third driving mechanism 431 in the feeding module 43 moves the sliding table 432 to the operator side, then the mechanical arm 23 in the manipulator 22 drives the jig 24 to act, the first and second suction assemblies 245 and 246 in the jig 24 simultaneously descend, and after the first and second suction assemblies 245 and 246 are adsorbed to the two ends of the plate-shaped metal sheet 50, they are lifted for a distance, when the first and second suction assemblies 245 and 246 adsorb multiple plate-shaped metal sheets 50, the second driving mechanism 242 is extended to drive the pushing piece 244 to push the adsorbed excess plate-shaped metal sheet 50 to move horizontally, so that the excess plate-shaped metal sheet 50 is separated from the adsorption of the first suction assembly 245, and the uppermost plate-shaped metal sheet 50 remains unchanged, then the second suction assembly 246 is retracted to stop adsorption, after the excess plate-shaped metal sheet 50 falls back under the action of gravity, the second suction assembly 246 is finally extended to continue to adsorb the uppermost plate-shaped metal sheet 50, thereby realizing the separation of the plate-shaped metal sheet 50, the manipulator 22 moves the grabbed plate-shaped metal sheet 50 to the sliding table 432, and sends a feeding completion signal to the welding device 40, and the manipulator 22 is reset;

[0062] Step S102, compression molding; after receiving the feeding completion signal, the welding equipment 40 starts to move the plate-shaped metal sheet 50 on the sliding table 432 to the top of the top pressing assembly 45 by the third driving mechanism 431 in the feeding module 43, the fourth driving mechanism 451 in the top pressing assembly 45 passes through the gap 4321 of the sliding table 432, drives the top seat 452 to lift the plate-shaped metal sheet 50 to rise on the profiling electrode 42, and bends the plate-shaped metal sheet 50 into a U shape under the cooperation of the profiling electrode 42, at the same time, the pressing block 453 in the top pressing assembly 45 is pressed against the U-shaped metal sheet under the action of the elastic member, then, the two concave pressing assemblies 46 act simultaneously, the two fifth driving mechanisms 461 drive the corresponding pressing seats 462 to act on the U-shaped metal sheet, and the two pressing seats 462 are close to the profiling electrode 42 to fit, so as to bend the U-shaped metal sheet into a tubular shape, and the joints are overlapped;

[0063] Step S103, welding, after the above actions are completed, the sixth driving mechanism 471 in the welding module 47 drives the welding machine assembly 474 to the tubular metal sheet 60, the seventh driving mechanism 4741 in the welding machine assembly 474 drives the rolling electrode 4742 to descend to the joint position of the tubular metal sheet 60 and tightly fit with it, and under the driving of the sixth driving mechanism 471, the rolling electrode 4742 rolls forward and welds, and the joint welding of the tubular metal sheet 60 is completed.

[0064] Step S104, cleaning and resetting, the fourth driving mechanism 451, the fifth driving mechanism 461, the seventh driving mechanism 4741 and the sixth driving mechanism 471 are reset in sequence, the third driving mechanism 431 pushes the push plate 4322 on the sliding table 432 to move forward, so as to take out the metal pipe product from the profiling electrode 42 and drop it into the chute 492 of the discharging seat 491, and then drop it on the conveying belt 10 through the chute 492, and then the metal pipe product is taken out.

[0065] As described above, the plurality of devices are matched together to form a welding system, which is used to replace the previous manual bending of the plate-shaped metal sheet 50 into a tubular metal sheet 60 and welding the joints, the feeding, bending, welding, taking and transporting in the welding system, the whole process has low manual participation, reduces the manual operation intensity, improves the production capacity, the device operation is simple, saves the labor cost, has high automation degree, and is suitable for wide promotion.

[0066] The above only describes the preferred embodiments of the utility model, and does not limit the utility model, any modification, equivalent replacement or improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A welding system, characterized in that... ,include: conveyor; A gripper device, comprising a control panel and a robotic arm rotatably mounted on the control panel, the robotic arm being electrically connected to the control panel and having multiple degrees of freedom, the control panel being positioned close to the conveyor belt; At least one tray for stacking multiple sheet metal sheets, the tray being positioned close to the gripper; At least one welding device, the welding device including a frame, a conforming electrode, a feeding module, a bending module, a welding module and an electrode plate that cooperates with the welding module, the conforming electrode, the feeding module, the bending module and the welding module are all mounted on the frame, the electrode plate is mounted on the conforming electrode, and the frame is located close to the conveyor belt; When welding is required, the robotic arm can grasp the sheet metal on the tray and transfer it to the feeding module in the welding equipment. The bending module lifts the sheet metal in the feeding module onto the conforming electrode and bends the sheet metal into a tube shape with the help of the conforming electrode. The welding module can weld the joint of the tube-shaped sheet metal. The feeding module can remove the welded tube-shaped sheet metal from the conforming electrode and push the welded tube-shaped sheet metal onto the conveyor belt.

2. The welding system as described in claim 1, characterized in that... The robotic arm includes a robotic arm with multiple degrees of freedom and a fixture for gripping multiple sheet-like metal plates one by one. One end of the robotic arm is rotatably connected to the control panel and the other end is connected to the fixture. Both the fixture and the robotic arm are electrically connected to the control panel.

3. The welding system as described in claim 2, characterized in that... The fixture includes a first driving mechanism, a second driving mechanism, a platform frame mounted on the output end of the first driving mechanism, a pusher mounted on the output end of the second driving mechanism, a first adsorption component for adsorbing one end of the plate-shaped metal sheet, and a second adsorption component for adsorbing the other end of the plate-shaped metal sheet. The first driving mechanism is fixed to the robotic arm, and the second driving mechanism, the first adsorption component, and the second adsorption component are all mounted on the platform frame. The second driving mechanism can drive the pusher to push the adsorbed excess plate-shaped metal sheet to move laterally.

4. The welding system as described in claim 1, characterized in that... The feeding module includes a third drive mechanism and a slide for receiving the plate-shaped metal sheet from the robot. The third drive mechanism is mounted on the frame, and the slide is mounted on the output end of the third drive mechanism. The slide has a notch for the bending module to pass through.

5. The welding system as described in claim 4, characterized in that... The slide includes a push plate, a slide plate for placing the plate-shaped metal sheet, and a plurality of positioning blocks for limiting the movement of the plate-shaped metal sheet. The push plate is fixed on the slide plate and has a first arc-shaped groove that cooperates with the contour electrode. The notch is provided on the slide plate, and each of the positioning blocks is installed on the slide plate.

6. The welding system as claimed in claim 1, characterized in that... The bending module includes a top pressing assembly and two opposing pressing assemblies. The top pressing assembly includes a fourth driving mechanism and a top seat mounted on the output end of the fourth driving mechanism. The fourth driving mechanism is mounted on the frame. The top seat is located below the conforming electrode. The top seat has a second arc-shaped groove that cooperates with the conforming electrode. The fourth driving mechanism can drive the top seat to lift the plate-shaped metal sheet onto the conforming electrode and bend the plate-shaped metal sheet into a U-shape with the cooperation of the conforming electrode. The crimping assembly includes a fifth driving mechanism and a pressure seat mounted on the output end of the fifth driving mechanism. Both fifth driving mechanisms are mounted on the frame. The conforming electrode is located between the two pressure seats. The pressure seat is provided with a third arc-shaped groove for cooperating with the conforming electrode. The two fifth driving mechanisms can respectively drive the corresponding pressure seat to act on the U-shaped metal sheet to bend the U-shaped metal sheet into a tubular shape.

7. The welding system as claimed in claim 1, characterized in that... The welding module includes a sixth drive mechanism, a transmission assembly, a connecting plate, and a welding machine assembly. The sixth drive mechanism is mounted on the frame, and its output end is connected to the connecting plate through the transmission assembly. The welding machine assembly is mounted on the connecting plate and located above the contour electrode.

8. The welding system as claimed in claim 7, characterized in that... The welding machine assembly includes a seventh drive mechanism and a rolling electrode for welding the joint of the tubular metal sheet. The seventh drive mechanism is mounted on the connecting plate, and the rolling electrode is mounted on the output end of the seventh drive mechanism. The seventh drive mechanism can drive the rolling electrode to move up and down. The top of the contour electrode is provided with an embedding groove, and the electrode plate is installed in the embedding groove and is correspondingly arranged with the rolling electrode.

9. The welding system as claimed in claim 1, characterized in that... The welding equipment also includes a human-machine interface, which is mounted on the frame. The conveyor belt, the control panel, the feeding module, the bending module, and the welding module are all electrically connected to the human-machine interface.

10. The welding system as claimed in claim 1, characterized in that... The welding equipment also includes an output seat, which is mounted on the frame. The output seat has an inclined groove, one end of which is located below the conformal electrode and the other end is correspondingly set with the conveyor belt.

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