Intelligent production line for welding heat insulation gas cylinders

Abstract

The utility model discloses an intelligent production line for welding a heat insulation gas cylinder, which comprises a goods shelf, a circulation mechanism, a plate rolling machine, a welding robot, a longitudinal seam automatic welding group and a control cabinet, and the circulation mechanism is arranged between the goods shelf and the plate rolling machine so as to transfer a processed plate from the goods shelf to the plate rolling machine; the plate rolling machine, the welding robot and the longitudinal seam automatic welding set are sequentially arranged from front to back, the plate rolling machine is used for rolling a machined plate into a barrel, the welding robot is configured to weld at least two areas at the seam of the barrel rolled by the plate rolling machine, and the longitudinal seam automatic welding set is used for receiving the barrel and conducting longitudinal seam welding on the seam of the barrel. The control cabinet is in signal connection with the circulation mechanism, the plate rolling machine, the welding robot and the longitudinal seam automatic welding set to control work of all equipment, the front side and the rear side of the longitudinal seam automatic welding set are each provided with a barrel circulation line in signal connection with the control cabinet, and the welding robot is arranged on one side of the barrel circulation line on the front side of the longitudinal seam automatic welding set in an offset mode; full-automatic production is achieved, and the production efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of gas cylinder manufacturing equipment, in particular to an intelligent production line for welded vacuum insulated gas cylinders. Background Art

[0002] At present, the production of the cylinder body of a vacuum insulated gas cylinder at least includes a rolling station and a welding station, and each station needs to be equipped with an operator. The operator at the rolling station needs to carry the processing plate to the rolling machine, and then operate the rolling machine to roll the processing plate into a cylinder body. The operator at the welding station needs to carry the rolled cylinder body to the welding station, clamp the cylinder body with a fixture, and after aligning the seams of the cylinder body, perform longitudinal seam welding; the workload of the operators at the stations is large, the operation time is increased, and the production efficiency of the cylinder body is affected. Content of the Utility Model

[0003] In order to solve the above technical problems, the purpose of the utility model is to provide an intelligent production line for welded vacuum insulated gas cylinders with high automation, high production efficiency and continuous production.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme: an intelligent production line for welded vacuum insulated gas cylinders, including: a shelf, a transfer mechanism, a rolling machine, a welding robot, a longitudinal seam automatic welding group and a control cabinet. The transfer mechanism is arranged between the shelf and the rolling machine to transfer the processing plate from the shelf to the rolling machine. The rolling machine, the welding robot and the longitudinal seam automatic welding group are arranged in sequence from front to back. The rolling machine is used to roll the processing plate into a cylinder body. The welding robot is configured to weld at least two areas at the seams of the cylinder body rolled by the rolling machine. The longitudinal seam automatic welding group is used to receive the cylinder body and perform longitudinal seam welding on the seams of the cylinder body. The control cabinet is signal-connected to the transfer mechanism, the rolling machine, the welding robot and the longitudinal seam automatic welding group to control the work of each device. A cylinder body transfer line signal-connected to the control cabinet is respectively arranged on the front side and the rear side of the longitudinal seam automatic welding group. Each cylinder body transfer line is respectively used to carry and convey the cylinder body from front to back. The welding robot is offset to one side of the cylinder body transfer line on the front side of the longitudinal seam automatic welding group.

[0005] In the above technical scheme, in some specific embodiments, the transfer mechanism includes a handling trolley, a pneumatic suction cup fixture and a plate transfer line. The handling trolley is configured to move back and forth between the shelf and the pneumatic suction cup fixture to transfer the processing plate on the shelf. The pneumatic suction cup fixture is configured to transfer the processing plate on the handling trolley to the plate transfer line.

[0006] In the above technical solution, in some specific embodiments, a support frame is provided at the sheet material transfer line. The pneumatic suction cup fixture is movably mounted on the support frame and is located above the sheet material transfer line. The pneumatic suction cup fixture includes a moving hanging bracket, a plurality of pneumatic suction cups mounted on the moving hanging bracket, a CCD vision detection sensor, and an ultrasonic thickness sensor. The moving hanging bracket is slidably engaged with the support frame and can move relative to the support frame in the front-rear direction. The CCD vision detection sensor is used to detect the size and horizontal state of the processed sheet material, and the ultrasonic thickness sensor is used to detect the thickness of the processed sheet material. Both the CCD vision detection sensor and the ultrasonic thickness sensor are signal-connected to the control cabinet.

[0007] In the above technical solution, in some specific embodiments, the sheet material transfer line includes a frame and two rows of transmission mechanisms arranged oppositely. Each of the transmission mechanisms includes a plurality of rollers rotatably provided on the frame and a rotation motor drivingly connected to the plurality of rollers. The rotation motor is used to drive the corresponding plurality of rollers to rotate around their respective axis lines. Each of the rotation motors is signal-connected to the control cabinet.

[0008] In the above technical solution, in some specific embodiments, the plate rolling machine includes a forming roller extending in the front-rear direction. The plate rolling machine is configured to wind the processed sheet material around the forming roller to form a cylinder, and the seam of the cylinder extends in the front-rear direction.

[0009] In the above technical solution, in some specific embodiments, the plate rolling machine further includes a pushing mechanism for pushing the formed cylinder away from the plate rolling machine from front to back. The pushing mechanism includes a pushing plate and a pushing cylinder. The pushing cylinder is drivingly connected to the pushing plate to drive the pushing plate to be able to move relative to the forming roller in the front-rear direction. The pushing plate is perpendicular to the forming roller and is provided with a through hole for the forming roller to pass through, and the diameter of the through hole is smaller than the outer diameter of the cylinder.

[0010] In the above technical solution, in some specific embodiments, the welding robot includes a first detection device and a welding gun. Both the first detection device and the welding gun are signal-connected to the control cabinet. The first detection device is used to detect the wall thickness and the size of the seam of the cylinder pushed out by the pushing mechanism and transmit the detection results to the control cabinet. The welding gun is configured to weld the seam of the cylinder based on the instructions of the control cabinet.

[0011] In the above technical solution, in some specific embodiments, the longitudinal seam automatic welding group includes an operation table for supporting the cylinder body, a longitudinal seam welding torch movably arranged on the operation table in the front-back direction, and a second detection device installed on the operation table. The longitudinal seam welding torch and the second detection device are both connected to the control cabinet in a signal connection. The second detection device is used to detect the seam of the cylinder body on the operation table and transmit the detection result to the control cabinet. The control cabinet is configured to control the longitudinal seam welding torch to weld the seam of the cylinder body on the operation table based on the detection result of the second detection device.

[0012] In the above technical solution, in some specific embodiments, the detection result of the second detection device includes the wall thickness of the cylinder body and the head position, length and width of the seam of the cylinder body.

[0013] In the above technical solution, in some specific embodiments, both the first detection device and the second detection device include a CCD vision detection sensor and an ultrasonic thickness sensor.

[0014] In the above technical solution, the processed plate is transported by the transfer mechanism, the processed plate is automatically rolled into a cylinder body by the rolling machine, and the seam of the cylinder body is welded by the welding robot and the longitudinal seam automatic welding group, without manual operation, saving time and effort and improving production efficiency. Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of an intelligent production line provided by an embodiment of the present application.

[0016] Figure 2 It is Figure 1 the schematic structural diagram of the transfer mechanism in

[0017] Figure 3 It is Figure 1 the schematic structural diagram of the longitudinal seam automatic welding group in

[0018] Wherein: 100, intelligent production line; 1, shelf; 2, rolling machine; 21, forming roller; 3, welding robot; 4, longitudinal seam automatic welding group; 41, operation table; 42, longitudinal seam welding torch; 5, control cabinet; 6, first cylinder transfer line; 61, rotating cylinder; 62, motor; 7, second cylinder transfer line; 8, handling trolley; 9, pneumatic suction cup fixture; 901, loading station; 902, unloading station; 91, moving hanger; 92, pneumatic suction cup; 10, plate transfer line; 101, frame; 102, transmission mechanism; 1021, roller; 1022, rotating motor; 11, support frame; 111, support beam; 200, processed plate; 300, cylinder body. Detailed Embodiments

[0019] To describe in detail the technical content, structural features, achieved objectives and effects of the application, the technical solutions in the embodiments of the present utility model will be described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. In the following description, for the purpose of explanation, many specific details are set forth to provide a detailed description of various exemplary embodiments or implementations of the invention. However, various exemplary embodiments can also be implemented without these specific details or in the case of one or more equivalent arrangements. In addition, various exemplary embodiments can be different, but they do not have to be exclusive. For example, without departing from the inventive concept, the specific shapes, structures and characteristics of the exemplary embodiments can be used or implemented in another exemplary embodiment.

[0020] The "front", "rear", "left" and "right" described in this application are in accordance with the Figure 1 front, rear, left and right shown.

[0021] The present utility model provides an intelligent production line for welded cryogenic cylinders. This intelligent production line is used to roll the processed plates into cylinders, and then weld the cylinders and transport them to the subsequent production line to complete the production of cryogenic cylinders.

[0022] As Figure 1 shown, this intelligent production line 100 includes: a shelf 1, a transfer mechanism, a plate rolling machine 2, a welding robot 3, a longitudinal seam automatic welding group 4, a control cabinet 5, a first cylinder transfer line 6 and a second cylinder transfer line 7. The transfer mechanism transports the processed plates 200 between the shelf 1 and the plate rolling machine 2. The plate rolling machine 2, the first cylinder transfer line 6, the longitudinal seam automatic welding group 4 and the second cylinder transfer line 7 are arranged in sequence from front to back.

[0023] As Figure 1 , 2 shown, the transfer mechanism includes a handling cart 8, a pneumatic suction cup fixture 9 and a plate transfer line 10. In the embodiments of this application, the plate transfer line 10 and the pneumatic suction cup fixture 9 are arranged at the rear side of the shelf 1 and on the left side of the plate rolling machine 2. The pneumatic suction cup fixture 9 is configured to move back and forth in the front-rear direction and is always located above the plate transfer line 10. The pneumatic suction cup fixture 9 has a loading station 901 for loading the processed plates 200 and an unloading station 902 for unloading the processed plates 200. The loading station 901 is located in front of the unloading station 902, and the unloading station 902 is at the plate transfer line 10.

[0024] The transfer cart 8 moves back and forth between the storage rack 1 and the loading station 901 to transfer the processed plate 200 on the storage rack 1 to the loading station 901 for the pneumatic suction cup fixture 9 to load and transfer the processed plate 200. An induction device and a driving device are installed on the transfer cart 8, and both the induction device and the driving device are signal-connected to the control cabinet 5. When the induction device senses that the processed plate 200 is carried on the transfer cart 8, the driving device drives the transfer cart 8 to carry the processed plate 200 to the loading station 901; when the induction device senses that the processed plate 200 on the transfer cart 8 at the loading station 901 is removed, the control cabinet 5 controls the driving device to drive the transfer cart 8 back to the storage rack 1 to transfer the next processed plate 200.

[0025] A support frame 11 is provided at the plate transfer line 10. The support frame 11 includes a support beam 111 extending in the front-rear direction. The pneumatic suction cup fixture 9 is slidably installed on the support beam 111 to move back and forth between the loading station 901 and the unloading station 902 along the support beam 111.

[0026] The pneumatic suction cup fixture 9 includes a moving hanging bracket 91, a plurality of pneumatic suction cups 92 installed on the moving hanging bracket 91, and a detection device (not shown in the figure) installed on the moving hanging bracket 91. The moving hanging bracket 91 is slidably connected to the support beam. The plurality of pneumatic suction cups 92 are divided into two groups that are opposite to each other in the front-rear direction, and the pneumatic suction cups 92 in each group are arranged in sequence in the left-right direction at the bottom of the moving hanging bracket 91; each pneumatic suction cup 92 has a suction state and an exhaust state. When the pneumatic suction cup 92 is in the suction state, the air between the processed plate 200 and the contacting pneumatic suction cup 92 is pumped out, and the processed plate 200 is adsorbed by the pneumatic suction cup 92. At this time, the processed plate 200 can move back and forth with the pneumatic suction cup fixture 9; when the pneumatic suction cup 92 is in the exhaust state, air is filled between the processed plate 200 and the contacting pneumatic suction cup 92, and the processed plate 200 is detached from the pneumatic suction cup fixture 9. The detection device, the moving hanging bracket 91, and the plurality of pneumatic suction cups 92 are signal-connected to the control cabinet 5. The detection device includes a CCD vision detection sensor and an ultrasonic thickness sensor. The CCD vision detection sensor is used to detect the size, current position, and horizontal state of the processed plate 200 and transmit the detection results to the control cabinet 5; the ultrasonic thickness sensor is used to detect the thickness of the processed plate 200 and transmit the detection results to the control cabinet 5. The control cabinet 5 controls the forward and backward movement of the moving hanging bracket 91, adjusts the suction force of the plurality of pneumatic suction cups 92, and controls the operation of the plate transfer line 10 according to the detection results. Each pneumatic suction cup 92 is in the suction state at the loading station 901 to adsorb the processed plate at the loading station 901 and is in the exhaust state at the unloading station 902 to unload the carried processed plate onto the plate transfer line 10.

[0027] The sheet material transfer line 10 includes a frame 101 and two rows of transmission mechanisms 102 arranged opposite to each other in the front and rear directions. Each transmission mechanism 102 includes a plurality of rollers 1021 rotatably arranged on the frame 101 and a rotation motor 1022 drivingly connected to the plurality of rollers 1021. The plurality of rollers 1021 are arranged in sequence in the left-right direction, and the axis lines of the respective rollers 1021 extend in the front-rear direction. The rotation motor 1022 is used to drive the corresponding plurality of rollers 1021 to rotate respectively around their own axis lines; the two rotation motors 1022 of the two rows of transmission mechanisms 102 are both signal-connected to the control cabinet 5, and the control cabinet 5 controls the operation of each rotation motor 1022.

[0028] The plate rolling machine 2 includes a forming roller 21 extending in the front-rear direction. The plate rolling machine 2 is configured to wind the processed sheet material 200 around the forming roller 21 into a cylinder 300. During the winding process, the left side and the right side of the processed sheet material 200 approach each other to form a seam, and the seam of the cylinder extends in the front-rear direction.

[0029] In order to improve the success rate of rolling the processed sheet material and ensure the neatness of the seam of the rolled cylinder, the control cabinet 5 controls the rotation speeds of the respective rotation motors 1022 based on the detection results of the CCD vision detection sensor and the ultrasonic thickness sensor of the pneumatic suction cup fixture 9, so that the sheet material transfer line 10 always keeps the processed sheet material 200 in a horizontal transportation state, and ensures that the right side of the processed sheet material 200 is always parallel to the forming roller 21.

[0030] The plate rolling machine 2 further includes a pushing mechanism for pushing the rolled cylinder 300 away from the plate rolling machine 2 from front to back. The pushing mechanism includes a push plate and a pushing cylinder. The pushing cylinder is drivingly connected to the push plate to drive the push plate to be able to move relative to the forming roller 21 in the front-rear direction. The push plate is perpendicular to the forming roller 21 and is provided with a through hole for the forming roller 21 to pass through. The diameter of the through hole is larger than the diameter of the forming roller 21 and smaller than the outer diameter of the cylinder 300.

[0031] The first cylinder transfer line 6 includes two rows of rotating cylinders 61 arranged opposite to each other in the left-right direction and motors 62 respectively driving the two rows of rotating cylinders 61 to rotate. Each row of rotating cylinders 61 is arranged in sequence in the front-rear direction. The motors 62 are signal-connected to the control cabinet 5 to drive the rotating cylinders 61 to rotate around their own axis lines under the control of the control cabinet 5, so that the cylinder 300 is conveyed backward to the longitudinal seam automatic welding group 4.

[0032] The structure and working principle of the second cylinder transfer line 7 are the same as those of the first cylinder transfer line 6, and will not be elaborated here.

[0033] The welding robot 3 is installed on the left side of the first cylinder transfer line 6. The welding robot 3 includes a first detection device and a welding gun. Both the first detection device and the welding gun are signal-connected to the control cabinet 5. The first detection device is used to detect the wall thickness of the cylinder 300 pushed out by the pushing mechanism and the size of the joint, and transmit the detection results to the control cabinet 5. The control cabinet 5 controls the welding gun to weld at least two areas of the joint in the front-back direction and preliminarily fix it when the joint of the cylinder 300 is aligned, so as to prevent the joint from skewing during the movement of the cylinder 300 and causing welding failure.

[0034] As Figure 1 , 3 shown, the longitudinal seam automatic welding group 4 includes an operating table 41 for supporting the cylinder 300, a longitudinal seam welding gun 42 movably arranged on the operating table 41 in the front-back direction, and a second detection device installed on the operating table 41. Both the longitudinal seam welding gun 42 and the second detection device are signal-connected to the control cabinet 5. The second detection device detects the wall thickness of the cylinder on the operating table 41 and the head position, length and width of the joint of the cylinder, and transmits the detection results to the control cabinet 5. The control cabinet 5 can control the longitudinal seam welding gun 42 to move to the head of the joint based on the detection results of the second detection device, and then control the longitudinal seam welding gun 42 to weld the joint while moving backward. The operating table 41 further includes a conveying mechanism (not shown in the figure), and the conveying mechanism is used to convey the welded cylinder 300 on the operating table 41 from front to back.

[0035] Both the first detection device and the second detection device include a CCD vision detection sensor and an ultrasonic thickness sensor. The CCD vision detection sensor is used to detect the size of the cylinder 300 and the position of the joint, and the ultrasonic thickness sensor is used to detect the wall thickness of the cylinder 300. By using the CCD vision detection sensor and the ultrasonic thickness sensor to detect the cylinders on the first cylinder transfer line 6 and the longitudinal seam automatic welding group 4, when the control cabinet 5 grasps the current position and size of the cylinder, it controls the operation of the welding robot 3 and the longitudinal seam welding gun 42, improves the welding efficiency and quality, and realizes automated production.

[0036] The second cylinder transfer line 7 receives the welded cylinder 300 at the rear of the longitudinal seam automatic welding group 4 and outputs the cylinder 300 from the intelligent production line 100.

[0037] In the intelligent production line 100, the control cabinet 5 controls the transfer mechanism to transfer the processed plate 200 on the shelf 1 to the plate rolling machine 2, and ensures that the right side of the processed plate 200 is parallel to the forming roller; then controls the plate rolling machine 2 to roll the processed plate 200 into a cylinder 300 and push the cylinder 300 backward onto the first cylinder transfer line 6; the welding robot 3 detects the cylinder 300 on the first cylinder transfer line 6 under the instruction of the control cabinet 5 and welds at least two areas of the seam on the cylinder 300 based on the detection result to preliminarily fix the seam; the control cabinet 5 controls the first cylinder transfer line 6 to convey the preliminarily fixed cylinder 300 from front to back to the longitudinal seam automatic welding group 4; the control cabinet 5 controls the longitudinal seam automatic welding group 4 to detect the preliminarily fixed cylinder 300 and perform longitudinal seam welding on the seam of the cylinder 300 based on the detection result, and convey the welded cylinder 300 backward to the second cylinder transfer line 7; the control cabinet 5 controls the second cylinder transfer line 7 to output the welded cylinder 300 from the intelligent production line 100.

[0038] The intelligent production line of the present utility model does not need to be equipped with multiple operators, saving labor. Through the control connection between the control cabinet and each device, the full-automatic production of the intelligent production line is realized, with a high degree of automation, continuous production can be carried out, the production efficiency is improved, and efficient and stable production operation is ensured.

[0039] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements. The scope of protection required by the present utility model is defined by the appended claims, the specification and their equivalents.

Claims

1. An intelligent production line for welding insulated gas cylinders, characterized in that: include: A shelf, a circulation mechanism, a plate rolling machine, a welding robot, an automatic longitudinal seam welding group and a control cabinet. The circulation mechanism is arranged between the shelf and the plate rolling machine to transfer the processed plate from the shelf to the plate rolling machine. The plate rolling machine, the welding robot and the automatic longitudinal seam welding group are arranged in sequence from front to back. The plate rolling machine is used to roll the processed plate into a cylinder. The welding robot is configured to weld at least two areas at the joint of the cylinder rolled by the plate rolling machine. The automatic longitudinal seam welding group is used to receive the cylinder and perform longitudinal seam welding on the joint of the cylinder. The control cabinet is connected to the circulation mechanism, the plate rolling machine, the welding robot and the automatic longitudinal seam welding group by signal to control the operation of each device. The front and rear sides of the automatic longitudinal seam welding group are respectively provided with cylinder circulation lines connected to the control cabinet signal. Each of the cylinder circulation lines is respectively used to carry and convey the cylinder from front to back. The welding robot is offset on one side of the cylinder circulation line on the front side of the automatic longitudinal seam welding group.

2. The intelligent production line according to claim 1 is characterized in that: The circulation mechanism includes a transport trolley, a pneumatic suction cup clamp and a plate circulation line. The transport trolley is configured to move back and forth between the shelf and the pneumatic suction cup clamp to transfer the processed plates on the shelf. The pneumatic suction cup clamp is configured to transfer the processed plates on the transport trolley to the plate circulation line.

3. The intelligent production line according to claim 2 is characterized in that: A support frame is provided at the plate flow line, and the pneumatic suction cup clamp is movably mounted on the support frame and is located on the upper side of the plate flow line. The pneumatic suction cup clamp includes a mobile hanger, a plurality of pneumatic suction cups mounted on the mobile hanger, a CCD visual detection sensor and an ultrasonic thickness sensor. The mobile hanger is slidably matched with the support frame and can move relative to the support frame in the front and rear directions. The CCD visual detection sensor is used to detect the size and horizontal state of the processed plate, and the ultrasonic thickness sensor is used to detect the thickness of the processed plate. The CCD visual detection sensor and the ultrasonic thickness sensor are both connected to the control cabinet signal.

4. The intelligent production line according to claim 2 is characterized in that: The plate circulation line includes a frame and two rows of transmission mechanisms arranged opposite to each other. Each of the transmission mechanisms includes a plurality of rollers rotatably arranged on the frame and a rotating motor transmission-connected to the plurality of rollers. The rotating motor is used to drive the corresponding plurality of rollers to rotate around their own axis respectively. Each of the rotating motors is signal-connected to the control cabinet.

5. The intelligent production line according to claim 1 is characterized in that: The plate rolling machine comprises a forming roller extending in the front-to-back direction. The plate rolling machine is configured to roll the processed plate around the forming roller into a cylinder, and the seam of the cylinder extends in the front-to-back direction.

6. The intelligent production line according to claim 5, characterized in that: The plate rolling machine also includes a pushing mechanism for pushing the rolled cylinder away from the plate rolling machine from front to back, the pushing mechanism includes a push plate and a pushing cylinder, the pushing cylinder is transmission-connected to the push plate to drive the push plate to move in the front-to-back direction relative to the forming roller, the push plate is perpendicular to the forming roller and is provided with a through hole for the forming roller to pass through, and the diameter of the through hole is smaller than the outer diameter of the cylinder.

7. The intelligent production line according to claim 6, characterized in that: The welding robot includes a first detection device and a welding gun, both of which are connected to the control cabinet by signals. The first detection device is used to detect the wall thickness of the cylinder pushed out by the pushing mechanism and the size of the seam, and transmit the detection results to the control cabinet. The welding gun is configured to weld the seam of the cylinder based on the instructions of the control cabinet.

8. The intelligent production line according to claim 7, characterized in that: The longitudinal seam automatic welding group includes an operating table supporting the cylinder, a longitudinal seam welding gun movably arranged on the operating table along the front-rear direction, and a second detection device installed on the operating table. The longitudinal seam welding gun and the second detection device are both connected to the control cabinet by signals. The second detection device is used to detect the seam of the cylinder on the operating table and transmit the detection result to the control cabinet. The control cabinet is configured to control the longitudinal seam welding gun to weld the seam of the cylinder on the operating table based on the detection result of the second detection device.

9. The intelligent production line according to claim 8, characterized in that: The detection result of the second detection device includes the wall thickness of the cylinder and the head end position, length and width of the seam of the cylinder.

10. The intelligent production line according to claim 8, characterized in that: The first detection device and the second detection device both include a CCD visual detection sensor and an ultrasonic thickness sensor.

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