Welding device for side wall tail pipe of solar two-way pipe

Abstract

The invention discloses a solar two-way pipe side wall tail pipe welding device which is characterized in that a shifting trolley is arranged between a welding station and an annealing station, and a lifting frame and a supporting bracket are arranged on the shifting trolley and used for achieving transverse movement and vertical supporting of an outer layer pipe; the annealing station is provided with a transverse movement driving assembly and a self-rotation driving assembly, the self-rotation driving assembly is provided with a plurality of sets of self-rotation wheels, and the self-rotation wheels can transversely move and rotate; the welding station is correspondingly provided with a positioning combustion frame and a positioning hole breaking frame, so that fixed-point heating and hole breaking of the outer-layer pipe can be realized, and conditions are created for insertion of the tail pipe; a welding frame is correspondingly arranged on the welding station, a tail pipe feeding table is further arranged in cooperation with the welding frame, a tail pipe longitudinal moving rail and a vertical frame are arranged on the tail pipe feeding table, a vertical lifting driving device is arranged on the vertical frame, and an overturning air cylinder and a clamping cylinder are arranged on the lifting driving device. Fixed-point clamping of the tail pipe can be achieved through the clamping arms on the clamping cylinders, and the tail pipe can be inserted into the outer-layer pipe to be subjected to hot melting welding.

Description

Technical Field

[0001] The invention belongs to the technical field of solar double-pass pipe welding equipment, and in particular relates to a solar double-pass pipe side wall tail pipe welding device. Background Art

[0002] As we all know, in the existing field of solar energy technology, the TaiNeng double-pass tube, as a new type of heat-collecting glass tube, has developed rapidly in the field of solar heating and heat extraction in recent years.

[0003] The cross-sectional structure of this solar double-pass tube is as follows: Figure 1 As shown, it is usually composed of an inner tube and an outer tube. During the process of combining the ends of the inner tube and the outer tube, a tail pipe connected to the outside is arranged in the chamber between the two for vacuuming. In order to facilitate the connection with the external vacuuming equipment, this tail pipe should be arranged on the side wall of the outer tube.

[0004] In the prior art, when the tail pipe is combined with the side wall of the outer tube, a person manually burns to make a hole in the outer tube, then inserts the tail pipe into the outer tube, and finally uses high-temperature combustion to combine the two. This welding method is inefficient, has poor precision, and requires welders to have a high level of technical skills. The product defect rate obtained by this technology is high and cannot fully meet actual use requirements.

[0005] A variety of equipment for welding tail pipes has been disclosed by those skilled in the art, such as a solar glass collector tube high-efficiency tail connection device with publication number CN117776511B. However, such equipment is only suitable for welding tail pipes at the ends of outer tubes, and is not suitable for welding side tail pipes. Therefore, such equipment cannot be directly used on a production line to increase production capacity.

[0006] In view of such drawbacks in the prior art, technicians in this field have designed a solar double-pass tube side wall tail pipe welding device through technical improvements, the purpose of which is to realize automatic welding of the side tail pipe and effectively improve the welding accuracy and welding efficiency. Summary of the invention

[0007] In view of the shortcomings of the prior art mentioned above, the present invention proposes a solar double-pass tube side wall tail pipe welding device, which can effectively improve welding efficiency and welding accuracy by combining an outer layer tube shifting device with an automatic tail pipe picking, automatic loading, automatic welding and automatic annealing device.

[0008] The technical solution adopted by the present invention to solve its technical problem is: A solar double-pass pipe side wall tail pipe welding device, comprising a welding station and an annealing station, a lateral movement track is arranged between the welding station and the annealing station, a shift trolley is arranged on the lateral movement track, a lifting frame is arranged on the shift trolley, and a support bracket is arranged on the lifting frame for realizing lateral movement fixation and vertical support of the outer layer pipe; The annealing station is provided with an outer drive chain and an inner drive chain, the outer drive chain is provided with a plurality of sets of self-rotating wheels to realize circular movement, and the inner drive chain is provided to cooperate with the self-rotating wheels to drive the self-rotating wheels to rotate; the annealing station is also provided with an annealing nozzle; A positioning combustion rack is correspondingly arranged on the welding station, a longitudinal moving track is arranged on the positioning combustion rack, a longitudinal moving rack is arranged on the longitudinal moving track, and a plurality of vertical combustion nozzles are arranged on the longitudinal moving rack; a longitudinal combustion driving device is arranged in conjunction with the longitudinal moving rack; A positioning hole-breaking frame is correspondingly arranged on the welding station, a telescopic driving part and a telescopic frame are arranged on the positioning hole-breaking frame through a guide part, and a plurality of high-pressure nozzles are arranged on the telescopic frame; A welding frame is correspondingly arranged on the welding station, a supporting plate is arranged on the welding frame, and a plurality of welding nozzles are arranged on the supporting plate.

[0009] The support plate is fixed on the turntable through a connecting piece, and the turntable is arranged on a turntable driving device; A tail pipe feeding platform is arranged on the side of the welding frame, a tail pipe longitudinal movement track and a tail pipe longitudinal movement driving device are arranged on the tail pipe feeding platform, a vertical frame is arranged on the tail pipe longitudinal movement track, a vertical lifting driving device is arranged on the vertical frame, a turning cylinder is arranged on the lifting driving device, a clamping cylinder is fixed on the turning cylinder, a clamping arm is arranged on the clamping cylinder, and the tail pipe can be clamped by the clamping arm.

[0010] A tail pipe placement platform is provided in conjunction with the clamping arm, and a plurality of tail pipe fixing holes are evenly distributed on the tail pipe placement platform; the tail pipe placement platform is fixed on a rotation drive motor of the placement platform, and by driving the tail pipe placement platform, a plurality of tail pipe fixing holes can be respectively corresponding to the clamping arm to realize the supply of the tail pipe.

[0011] The welding station is also provided with a positioning frame, which is arranged at the front end or the rear end of the welding station. The positioning frame includes a horizontal support plate and a longitudinal baffle, and the positioning of the outer layer tube is achieved through the longitudinal baffle.

[0012] The annealing station is provided with front and rear side walls, and double-row drive wheels and outer drive motors are provided on the front and rear side walls. The outer drive chains on the front and rear side walls are driven by the double-row drive wheels. The self-rotating wheels are respectively fixed on the outer drive chains and move laterally with the outer drive chains.

[0013] The self-rotating wheel comprises a rubber wheel and a synchronous gear, the synchronous gear is meshed with the inner driving chain to realize self-rotation drive, and the inner driving chain is connected with the inner driving motor through the inner connecting shaft.

[0014] The annealing station is also provided with a horizontal extension rod, on which a plurality of vertical plates are provided, and a sleeve is provided on the top of each vertical plate, wherein an annealing nozzle is provided in the sleeve.

[0015] A sensor fixing position is arranged on the periphery of the turntable, and a sensor induction seat is arranged on the turntable to cooperate with the sensor.

[0016] The flame spraying ends of the multiple welding nozzles are arranged toward the junction of the tail pipe and the outer layer pipe, and the junction of the tail pipe and the outer layer pipe can be evenly heated in multiple directions to avoid pipe explosion caused by uneven heating.

[0017] The present invention has the following beneficial effects: the present invention comprises a welding station and an annealing station, a shift trolley is arranged between the welding station and the annealing station, and a lifting frame and a support bracket are arranged on the shift trolley to realize the lateral movement and vertical support of the outer tube; the outer tube can be automatically lateral moved between various stations, and the degree of automation is high; The annealing station is provided with a transverse driving assembly and a self-rotating driving assembly. The self-rotating driving assembly is provided with a plurality of groups of self-rotating wheels. The self-rotating wheels can be transversely moved and self-rotated to drive the outer layer tube to achieve uniform heat annealing at the annealing station. The welding station is provided with a positioning combustion rack and a positioning hole-breaking rack to realize the fixed-point heating and hole-breaking of the outer layer pipe, creating conditions for the insertion of the tail pipe; the welding station is provided with a welding rack, and a tail pipe feeding table is provided in conjunction with the welding rack. The tail pipe feeding table is provided with a tail pipe longitudinal movement track and a vertical rack, and a vertical lifting drive device is provided on the vertical rack. The lifting drive device is provided with a turning cylinder and a clamping cylinder. The clamping arm on the clamping cylinder can realize the fixed-point clamping of the tail pipe and insert it into the outer layer pipe for hot-melt welding; The structural design of the present invention is novel, and it can realize the steps of positioning the outer tube, making holes, plugging in the tail tube, welding, and shift annealing. The entire step is automatically operated and can complete precise plugging and pulling of the tail tube after welding. It has high efficiency and high precision, overcomes many disadvantages of the prior art, and is an ideal solar double-pass tube side wall tail tube welding device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the solar double-pass pipe structure; Figure 2It is a schematic diagram of the overall structure of the present invention; Figure 3 It is a side view structural schematic diagram of the present invention; Figure 4 It is a schematic diagram of the top view structure of the present invention; Figure 5 This is a schematic diagram of the installation structure for positioning the combustion rack; Figure 6 for Figure 2 A schematic diagram of the enlarged structure of the middle A area; Figure 7 for Figure 2 A schematic diagram of the structure of the middle B region; Figure 8 for Figure 4 A magnified schematic diagram of the structure of the middle C region; Fig. 9 for Figure 4 A magnified schematic diagram of the structure of the middle D region; Fig.10 It is a schematic diagram of the three-dimensional structure of the front side of the welding station; Fig.11 It is a schematic diagram of the internal driving structure of the annealing station; Fig.12 for Fig.10 A schematic diagram of the structure of the middle E region; In the figure, 1, welding station, 11, base, 12, outer tube support seat, 13, horizontal support plate, 14, longitudinal baffle, 15, intermediate platform, 16, transverse track; 2, shift trolley, 20, lifting frame drive motor, 21, linkage shaft, 22, fixing part, 23, drive gear, 24, vertical toothed belt, 25, lifting frame, 26, support bracket, 27, vertical guide rod, 28, vertical slide block, 29, transverse drive motor, 291, transverse toothed belt; 3, annealing station, 31. Outer drive motor, 311. Outer drive chain, 32. Inner drive motor, 321. Inner linkage shaft, 322. Inner drive chain, 33. Rotating wheel, 331. Rubber wheel, 332. Synchronous gear, 34. Horizontal extension rod, 35. Vertical plate, 36. Sleeve, 37. Annealing nozzle, 38. Double-row drive wheel; 4. Positioning hole-breaking frame, 41. Telescopic drive cylinder, 42. Telescopic guide block, 43. Telescopic guide rod, 44. Telescopic frame, 45. Extended air pipe , 46, high pressure nozzle, 47, gas connection part, 48, valve; 5, tail pipe placement table, 51, tail pipe placement hole, 52, placement table rotation drive motor; 6, clamping drive cylinder, 61, clamping arm, 62, clamping block; 7, tail pipe feeding table, 71, feeding screw, 72, tail pipe longitudinal movement drive motor, 73, vertical frame, 74, driving wheel, 75, driven wheel, 76, flip cylinder, 77, extension rod; 8, positioning combustion frame, 81, longitudinal movement track, 82, longitudinal movement frame, 83. Support column, 84. Support plate, 85. Vertical combustion nozzle, 86. Longitudinal combustion drive cylinder; 9. Welding frame, 91. Turntable drive motor, 92. Turntable, 93. Peripheral frame, 931. Sensor fixing position, 94. Sensor sensing seat, 95. Vertical rod, 96. Support plate, 97. Nozzle fixing seat, 971. Oblique fixing seat, 972. Welding nozzle, 98. Ignitor; 10. Double-pass pipe, 101. Tail pipe, 102. Outer pipe, 103. Inner pipe. DETAILED DESCRIPTION

[0020] The welding device structure disclosed in the present invention is relatively novel, but the accuracy and welding efficiency are significantly improved during the tail pipe welding process. In order to more clearly reflect the improved effect of the present invention, the structure and working steps of the present invention are described in detail below through specific implementation methods.

[0021] Example 1: Overall structure and functions of each part A solar double-pass pipe side wall tail pipe welding device, as shown in the attached Figure 1 As shown, a double-pass tube 10 includes an outer tube 102 and an inner tube 103 which are sealed at both ends. A tail tube 101 is arranged on the side wall of the outer tube 102. The tail tube 101 is used for vacuuming between the outer tube 102 and the inner tube 103.

[0022] The solar double-pass tube side wall tail tube welding device is used for welding the tail tube 101 on the side wall of the double-pass tube 10. It should be pointed out that the welding mentioned in the present patent application is to use combustible gas or combustible liquid to burn under high temperature and high pressure to achieve the burning of the joint part of the tail tube 101.

[0023] The solar double-pass tube side wall tail pipe welding device includes a welding station 1 and an annealing station 3, an intermediate platform 15 is arranged between the welding station 1 and the annealing station 3, a transverse track 16 is arranged on the intermediate platform 15, a shift trolley 2 is arranged on the transverse track 16, a transverse toothed belt 291 is locked or welded on the shift trolley 2, and a transverse driving motor 29 is arranged on the intermediate platform 15. The transverse driving motor 29 drives the gear to drive the transverse toothed belt 291 and then drives the entire shift trolley 2 to move transversely inside the welding station 1 and between the welding station 1 and the annealing station 3.

[0024] The shifting trolley 2 is provided with more than two groups of lifting frames 25. In this embodiment, the lifting frames include two groups arranged on the left and right and move vertically synchronously. The shifting trolley 2 is provided with a bearing seat to which two left and right linkage shafts 21 are fixed respectively. The two ends of the linkage shaft 21 are respectively fixed with driving gears 23. The driving gears 23 are used to drive the vertical toothed belt 24. The vertical toothed belt 24 is arranged on the bottom surface of the lifting frame 25. Because the lifting frame 25 is arranged in a long strip shape and the vertical toothed belt 24 is only arranged at the position below its center, in order to prevent the lifting frame 25 from swinging left and right, a vertical guide rod 27 and a vertical slider 28 are arranged between the bottom of the lifting frame 25 and the fixing member 22 for guiding the lifting frame 25 when it moves vertically. The linkage shaft 21 is provided with a lifting frame driving motor 20 for rotating the linkage shaft 21. The lifting frame 25 is provided with a support bracket 26 for realizing the lateral fixation and vertical support of the outer layer tube 102.

[0025] A base 11 and an outer tube support seat 12 are provided on the front and rear side walls of the welding station 1. Those skilled in the art can use insulating wood or a material that is resistant to high temperatures and has low hardness to make the outer tube support seat 12 to avoid friction damage to the outer tube 102. The support bracket 26 described in the previous or subsequent text uses the same material.

[0026] In this technical solution, the welding station 1 is designed to be a front section and a rear end. In this embodiment, the number of bases 11 on the welding station 1 is eight. The first four bases 11 are used as the front section to form a positioning area. A positioning frame is provided at the front end of the welding station 11. The positioning frame includes a horizontal support plate 13 and a longitudinal baffle 14. The horizontal support plate 13 is provided with a long hole, and the longitudinal baffle 14 is locked and fixed through the long hole, and the outer tube 102 is positioned and blocked through the longitudinal baffle 14. In this embodiment, the last four bases 11 on the welding station 1 are used as the rear section, and the rear section here is used for welding the tail pipe 101. An annealing station 3 is provided at the rear side of the welding station 1. In this embodiment, the two sets of lifting frames 25 on the shifting trolley 2 can be moved between the front section and the rear end of the welding station 1 and the annealing station 3, so as to realize the positioning, welding of the tail pipe and annealing of the outer diameter tube 102 on this equipment.

[0027] The rear section of welding station 1, such as Figure 5 As shown, a positioning combustion frame 8 is correspondingly provided on the welding station 1, and a longitudinal moving track 81 is provided on the positioning combustion frame 8, and a longitudinal moving frame 82 is provided on the longitudinal moving track 81, and a plurality of support columns 83 are provided on the longitudinal moving frame 82. A support sheet 84 is provided on the top of each support column 83, and the vertical combustion nozzle 85 is installed by the support sheet 84. The longitudinal moving frame 82 is also connected to the longitudinal combustion driving device, and the longitudinal combustion driving device here can be a cylinder, or an oil cylinder or a hydraulic motor. In this embodiment, a longitudinal combustion driving cylinder 86 with a cylinder structure is adopted. Through the above structural setting, the longitudinal movement of the vertical combustion nozzle 85 after the work is completed can be realized. Cooperating with the positioning combustion frame 8, as Figure 2 As shown, the device is also provided with a positioning hole-breaking frame 4, and a telescopic guide block 42 is provided on the top of the positioning hole-breaking frame 4. The telescopic guide block 42 is used to guide and constrain the telescopic guide rod 43. The telescopic guide rod 43 is fixed on the telescopic frame 44. The middle of the telescopic frame 44 is connected to the telescopic drive cylinder 41. The telescopic frame 44 can move longitudinally under the drive of the telescopic drive cylinder 41. Four extension air pipes 45 are fixed on the top of the telescopic frame 44, and a high-pressure nozzle 46 is provided at the bottom of each extension air pipe 45; a gas connection part 47 is fixed at the tail end of each extension air pipe 45 to connect with the external gas, and a valve 48 is fixed on the gas connection part 47 to control the high-pressure air intake. Through the coordinated use of the positioning combustion frame 8 and the positioning hole-breaking frame 4, the fixed-point blowing of the outer layer tube 102 is achieved.

[0028] The device is provided with a welding frame 9 corresponding to the welding station 1. The top of the welding frame 9 is provided with a turntable drive motor 91, a gearbox and a turntable 92. The turntable drive motor 91 and the gearbox are combined to be used as a turntable drive device; a vertical rod 95 is fixed on the top of the turntable 92, and a support plate 96 is provided on the top of the vertical rod 95. The support plate is used to fix multiple nozzle fixing seats 97. The nozzle fixing seat 97 is provided with an inclined fixing seat 971, and a welding nozzle 972 is fixed on the inclined inclined fixing seat 971. When multiple welding nozzles 972 are provided, the flame spraying ends of the multiple welding nozzles 972 are concentrated toward the junction point of the tail pipe 101 and the outer layer pipe 102. The junction point of the tail pipe 101 and the outer layer pipe 102 can be uniformly heated by synchronous heating in multiple directions to avoid pipe explosion caused by local uneven heating. An igniter 98 is provided in conjunction with the multiple welding nozzles 972 for ignition control.

[0029] Through this structural setting, the synchronous rotation of the turntable 92, the vertical rod 95 and the support plate 96 can be realized. The outer periphery of the turntable 92 is also provided with an outer frame 93, and a plurality of sensor fixing positions 931 are provided through the outer frame 93. The turntable 92 is provided with a sensor induction seat 94 to cooperate with a plurality of sensors. When the device is connected to an external control system, the rotation amount or rotation position can be controlled by the sensor.

[0030] like Figure 4 , 10 As shown, a tail tube feeding platform 7 is provided on the side of the welding frame 9, and a tail tube longitudinal movement track and a tail tube longitudinal movement driving device are provided on the tail tube feeding platform 7. In this embodiment, the tail tube longitudinal movement driving device uses a tail tube longitudinal movement driving motor 72, and a feeding screw 71 is also provided in conjunction with the tail tube longitudinal movement track. A vertical frame 73 is provided on the tail tube longitudinal movement track. The above structural arrangement can realize stable longitudinal movement of the vertical frame 73. As an equivalent embodiment, those skilled in the art can also replace the tail tube longitudinal movement driving motor 72 with a driving cylinder, and the vertical frame 73 can be pushed to move longitudinally by a driving rod on the driving cylinder to achieve basically the same technical effect.

[0031] The vertical frame 73 is provided with a driving motor as a vertical lifting driving device. The top of the driving motor is provided with a driving wheel 74 connected to a driven wheel 75 through a belt. The bottom of the driven wheel 75 is connected with a vertical screw. The vertical screw is used to lift the flip cylinder 76 for vertical driving. The flip cylinder 76 is provided with an extension rod 77. The extension rod 77 is fixed with a clamping driving cylinder 6. The clamping driving cylinder 6 is provided with a clamping arm 61. The bottom of the clamping arm 61 is fixed with a clamping block 62. The tail pipe 101 is clamped by the cooperation of the two clamping blocks 62. The above structure can clamp the tail pipe 101, longitudinally transfer the pipe, flip it, and insert the tail pipe into the outer layer pipe 102. More importantly, the device can also pull the tail pipe 101 outward immediately after the welding of the tail pipe 101 is completed to avoid the collapse of the welding point of the tail pipe 101. This operation method cannot be achieved in manual welding due to high temperature.

[0032] The device is provided with a tail pipe placement platform 5 in conjunction with the clamping arm 61, and a plurality of tail pipe fixing holes 51 are evenly distributed on the tail pipe placement platform 5; the tail pipe placement platform 5 is fixed on a placement platform rotation drive motor 52, and by driving the tail pipe placement platform 5 to rotate in situ, a plurality of tail pipe fixing holes 51 can be respectively corresponding to the clamping arm 61 to realize the one-by-one supply of the tail pipes 101.

[0033] In this embodiment, the annealing station 3 is provided with an outer drive chain 311 and an inner drive chain 322. The outer drive chain 311 is provided with a plurality of groups of self-rotating wheels 33 to realize circular movement. The inner drive chain 322 is provided in conjunction with the self-rotating wheel 33 to drive the self-rotating wheel 33 to rotate. More specifically, the front and rear side walls of the annealing station 3 are provided with a double-row drive wheel 38 and an outer drive motor 31. The outer drive chain 311 on the front and rear side walls is driven by the double-row drive wheel 38. The self-rotating wheels 33 are respectively fixed on the outer drive chain 311 and move laterally with the outer drive chain 311.

[0034] In this technical solution, the self-rotating wheel includes a rubber wheel 331 and a synchronous gear 332. The synchronous gear 332 is meshed with the inner driving chain 322 to realize self-rotation drive. The inner driving chain 322 is connected to the inner driving motor 32 through the inner connecting shaft 321. Through the above structural setting, the outer tube 102 can be driven together with the tail tube 101 to both move horizontally and rotate.

[0035] A horizontal extension rod 34 is also provided on the front side of the annealing station, and a plurality of vertical plates 35 are provided on the horizontal extension rod 34. A sleeve 36 is provided on the top of each vertical plate 35, and an annealing nozzle 37 is locked in the sleeve 36. In this embodiment, two vertical plates 35 are provided on each horizontal extension rod 34, and the two annealing nozzles 37 are arranged opposite to each other to centrally anneal the joint point of the tail pipe 101. Example

[0036] When the solar double-pass tube side wall tail tube welding device is used, the four outer tubes 102 are first placed on the four outer tube support seats 12 at the front section of the welding station 1. When placing, the end positioning needs to be performed through the longitudinal baffle 14. After positioning, the lifting frame driving motor 20 on the shifting trolley 2 is started, driving the support bracket 26 to realize the vertical lifting and support of the outer tube 102, and then the entire shifting trolley 2 is moved horizontally, and the support bracket 26 is shifted and aligned to the four outer tube support seats 12 at the rear section of the welding station 1. The lifting frame driving motor 20 on the shifting trolley 2 is started, driving the support bracket 26 to realize the vertical descent of the outer tube 102 and place the four outer tube support seats 12 at the rear section of the welding station 1. After the above actions are completed, the shifting trolley 2 returns to continue to place the outer tube 102.

[0037] Positioning combustion rack 8 works: the longitudinal combustion drive cylinder 86 pushes the longitudinal moving rack 82 and the vertical combustion nozzle 85 above to move forward to the plug-in place of the tail pipe 101 and ignites and burns the outer layer pipe 102. After high temperature treatment, the outer layer pipe 102 is partially softened. The longitudinal combustion drive cylinder 86 pushes the longitudinal moving rack 82 and the vertical combustion nozzle 85 above to move backward and leave the plug-in place of the tail pipe 101.

[0038] Positioning hole punching frame 4 works: the telescopic drive cylinder 41 connected to the middle of the telescopic frame 44 applies force, and under the drive of the telescopic drive cylinder 41, the telescopic frame 44, together with the four extended air pipes 45 and the high-pressure nozzle 46, can be synchronously moved backward to the plug-in position of the tail pipe 101, the gas connection part 47 is connected to the external high-pressure gas, and the valve 48 controls to realize pulse high pressure, and the instantaneous pulse high pressure is used to punch the softened area of ​​the outer tube 102, and a hole for plugging the tail pipe 101 appears in this area. The telescopic drive cylinder 41 drives the telescopic frame 44, together with the four extended air pipes 45 and the high-pressure nozzle 46, to synchronously move forward away from the plug-in position of the tail pipe 101.

[0039] Positioning hole punching frame 4 works: the telescopic drive cylinder 41 connected to the middle of the telescopic frame 44 applies force, and under the drive of the telescopic drive cylinder 41, the telescopic frame 44, together with the four extended air pipes 45 and the high-pressure nozzle 46, can be synchronously moved backward to the plug-in position of the tail pipe 101, the gas connection part 47 is connected to the external high-pressure gas, and the valve 48 controls to realize pulse high pressure, and the softened area of ​​the outer layer tube 102 is punched through the instantaneous pulse high pressure, and a hole for plugging the tail pipe 101 appears in this area. The telescopic drive cylinder 41 drives the telescopic frame 44, together with the four extended air pipes 45 and the high-pressure nozzle 46, to synchronously move forward away from the plug-in position of the tail pipe 101.

[0040] The tail tube feeding platform 7 and the tail tube placement platform 5 work: the tail tube placement platform 5 rotates to ensure that the tail tube fixing hole 51 with the tail tube is set toward the clamping drive cylinder 6; the tail tube longitudinal movement drive motor 72 drives the feeding screw 71 to rotate, driving the vertical frame 73 to move longitudinally stably; the vertical frame 73 is provided with a drive motor as a vertical lifting drive device, and the drive motor here is connected to a vertical screw, and the vertical screw is used to lift the flip cylinder 76 to move vertically, and the flip cylinder 76 is fixed with the clamping drive cylinder 6, and the clamping drive cylinder 6 is provided with a clamping arm 61 and a clamping block 62, and the clamping block 62 realizes the clamping and lifting of the tail tube 101. When the tube is longitudinally transferred, the clamping block 62 flips and inserts the tail tube into the outer layer tube 102. Wait for the various components on the welding frame 9 to be heated at high temperature to achieve the fusion of the two; this device can also gently pull the tail tube outward immediately after the tail tube 101 is welded to avoid the collapse of the welding point of the tail tube 101.

[0041] The welding frame 9 works: the turntable driving motor 91 drives the turntable 92 to rotate, and the vertical rod 95, the support plate 96, the nozzle fixing seat 97, the inclined fixing seat 971, and the welding nozzle 972 on the turntable rotate synchronously. The flame spraying ends of the multiple welding nozzles 972 are concentrated toward the junction of the tail pipe 101 and the outer layer pipe 102, and the junction of the tail pipe 101 and the outer layer pipe 102 can be uniformly heated by synchronous heating in multiple directions. It should be pointed out that when the clamping block 62 moves longitudinally, the turntable 92 also needs to rotate to avoid. After the device is connected to the external control system, the rotation amount or rotation position can be controlled by the sensor.

[0042] After the welding work is completed, the lifting frame driving motor 20 on the shifting trolley 2 is started, driving the support bracket 26 to realize the vertical lifting of the outer layer tubes 102 and place the four outer layer tubes 102 on the rotating wheel 33 on the annealing station 3.

[0043] Annealing station 3 works: the outer drive chain 311 drives several groups of self-rotating wheels 33 to realize circular movement, and multiple groups of annealing nozzles 37 are arranged at the front side of the annealing station. The outer drive chain 311 drives several groups of self-rotating wheels 33 to reach the corresponding annealing nozzles 37, and the outer drive chain 311 stops running; the inner drive chain 322 drives the self-rotating wheels 33 to rotate while the annealing nozzles 37 fire and perform annealing baking.

[0044] To sum up, the structural design of the present invention is novel, and it can realize the steps of positioning the outer tube 102, making holes, plugging in the tail tube 101, welding, and shift annealing. The entire step is automated and can complete precise plugging and pulling the tail tube after welding. It has high efficiency and high precision, overcomes many disadvantages of the prior art, and is an ideal solar double-pass tube side wall tail tube welding device.

Claims

1. A solar double-pass pipe side wall tail pipe welding device, characterized in that: It includes a welding station and an annealing station, wherein a lateral movement track and a shift trolley are arranged between the welding station and the annealing station, a lifting frame is arranged on the shift trolley, and a support bracket is arranged on the lifting frame for realizing lateral movement and vertical support of the outer layer pipe; The annealing station is provided with a transverse driving assembly and a self-rotating driving assembly, the self-rotating driving assembly is provided with a plurality of groups of self-rotating wheels which cooperate with the outer driving chain in the transverse driving assembly to realize movement, and the self-rotating wheels are provided with inner driving chains to drive the self-rotating wheels to rotate; the annealing station is provided with an annealing nozzle; A positioning combustion rack is correspondingly arranged on the welding station, a longitudinal moving track is arranged on the positioning combustion rack, a longitudinal moving rack is arranged on the longitudinal moving track, and a plurality of vertical combustion nozzles are arranged on the longitudinal moving rack; a longitudinal combustion driving device is arranged in conjunction with the longitudinal moving rack; A positioning hole-breaking frame is correspondingly arranged on the welding station, a telescopic driving part and a telescopic frame are arranged on the positioning hole-breaking frame through a guide part, and a plurality of high-pressure nozzles are arranged on the telescopic frame; A welding frame is correspondingly arranged on the welding station, a supporting plate is arranged on the welding frame, and a plurality of welding nozzles are arranged on the supporting plate.

2. A solar dual-pass pipe side wall tail pipe welding device as claimed in claim 1, characterized in that: The supporting plate is fixed on the turntable through a connecting piece, and the turntable is arranged on a turntable driving device.

3. A solar dual-pass pipe side wall tail pipe welding device as claimed in claim 2, characterized in that: A tail pipe feeding platform is arranged on the side of the welding frame, a tail pipe longitudinal movement track and a tail pipe longitudinal movement driving device are arranged on the tail pipe feeding platform, a vertical frame is arranged on the tail pipe longitudinal movement track, a vertical lifting driving device is arranged on the vertical frame, a turning cylinder is arranged on the lifting driving device, a clamping cylinder is fixed on the turning cylinder, and a clamping arm is arranged on the clamping cylinder to clamp the tail pipe.

4. A solar dual-pass pipe side wall tail pipe welding device as claimed in claim 3, characterized in that: A tail pipe placement platform is provided in conjunction with the clamping arm, and a plurality of tail pipe fixing holes are evenly distributed on the tail pipe placement platform; the tail pipe placement platform is fixed on a placement platform rotation driving device, and by driving the tail pipe placement platform, the tail pipe can be supplied according to the plurality of tail pipe fixing holes corresponding to the clamping arm.

5. A solar dual-pass pipe side wall tail pipe welding device as claimed in claim 1, characterized in that: The welding station is also provided with a positioning frame, which is arranged at the front end or the rear end of the welding station. The positioning frame includes a horizontal support plate and a longitudinal baffle, and the positioning of the outer layer tube is achieved through the longitudinal baffle.

6. A solar dual-pass pipe side wall tail pipe welding device as claimed in claim 1, characterized in that: The transverse driving assembly arranged on the annealing station includes an outer driving motor and double-row driving wheels on the front and rear side walls. The front and rear outer driving chains are driven by the double-row driving wheels. The rotating wheels are respectively fixed on the outer driving chains and move transversely with the outer driving chains.

7. A solar dual-pass pipe side wall tail pipe welding device as claimed in claim 1, characterized in that: The self-rotating wheel comprises a rubber wheel and a synchronous gear, the synchronous gear is meshed with an inner driving chain to realize self-rotating drive, and the inner driving chain is connected to an inner driving motor.

8. A solar dual-pass pipe side wall tail pipe welding device as claimed in claim 1, characterized in that: The annealing station is also provided with a horizontal extension rod, on which a plurality of vertical plates are provided, and a sleeve is provided on the top of each vertical plate, in which an annealing nozzle is provided.

9. A solar dual-pass pipe side wall tail pipe welding device as claimed in claim 2, characterized in that: A sensor fixing position is arranged on the periphery of the turntable, and a sensor induction seat is arranged on the turntable to cooperate with the sensor.

10. A solar dual-pass pipe side wall tail pipe welding device as claimed in claim 1, characterized in that: The flame spraying ends of the multiple welding nozzles are arranged toward the junction of the tail pipe and the outer layer pipe, and the junction of the tail pipe and the outer layer pipe is evenly heated in multiple directions to avoid pipe explosion caused by uneven heating.

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