Fin plate welding equipment of heat pipe type plate-fin heat exchanger

Abstract

The invention relates to the technical field of fin welding, and discloses fin plate welding equipment for a heat pipe type plate-fin heat exchanger, which comprises a welding table, two bearing plates, a mounting frame and an adjusting group, the two bearing plates and the mounting frame are fixedly arranged on the welding table, the adjusting group is arranged in the mounting frame, a sliding chute is formed in the front bearing plate, and guide plates are fixedly connected to two sides of the sliding chute; a threaded rod is rotationally arranged in the sliding groove, the outer wall of the threaded rod is connected with a limiting piece, the limiting piece comprises a sliding block in threaded connection with the threaded rod, and two electromagnetic blocks are arranged on the sliding block. The fin plate welding equipment of the heat pipe type plate-fin heat exchanger can effectively solve the problems that in the prior art, along with continuous welding work, the extending length of a steel pipe located on the welding equipment is gradually increased, and after the steel pipe is welded to fins, the steel pipe is prone to shaking due to the fact that the steel pipe is lack of support and is prone to being affected by vibration or other external force; welding spots formed in the welding process fall off, and the quality of welding seams is not uniform.

Description

Technical Field

[0001] The present invention relates to the technical field of fin welding, and in particular to a fin plate welding device for a heat pipe type plate-fin heat exchanger. Background Art

[0002] A heat exchanger is a device used to transfer heat between different fluids. It is widely used in many industrial fields such as chemical, petroleum, electric power, and food processing. Its basic principle is to use heat exchange technology to transfer heat from high-temperature fluid to low-temperature fluid through an insulated solid wall. There are many types of heat exchangers, including shell and tube heat exchangers, plate heat exchangers, finned tube heat exchangers, etc.

[0003] As a highly efficient heat transfer element in finned tube heat exchangers, H-shaped finned tubes are particularly suitable for applications where improved heat transfer efficiency is required. The design feature of this finned tube is that H-shaped fins are welded onto the steel tube. These fins can significantly increase the heat transfer area, thereby improving the overall performance of the heat exchanger.

[0004] The manufacturing process of H-shaped finned tubes usually involves dropping two fins into the two sides of the steel tube through intermittent blanking, and then welding the fins to the steel tube through high-frequency current. Although existing welding equipment can achieve high welding efficiency, it still has certain disadvantages. As the welding work continues, the length of the steel tube on the welding equipment gradually increases. After the fin welding is completed, the steel tube lacks support and is easily affected by vibration or other external forces, causing shaking, which in turn leads to the detachment of the weld points formed during the welding process and uneven weld quality. Summary of the Invention

[0005] In response to the above-mentioned shortcomings of the prior art, the present invention provides a fin plate welding device for a heat pipe plate-fin heat exchanger, which can effectively solve the problem in the prior art that as the welding work continues, the length of the steel pipe extending from the welding equipment gradually increases, and after the fin welding is completed, the steel pipe is easily shaken by vibration or other external forces due to lack of support, which in turn leads to the falling off of the welds formed during the welding process and uneven weld quality.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: The present invention provides a fin plate welding device for a heat pipe type plate-fin heat exchanger, comprising: The welding table is fixed with two supporting plates distributed in a front-to-back symmetrical manner; A mounting frame fixedly arranged on the welding table; An adjustment group provided inside the mounting frame and used to realize fin alignment; Among them, guide plates are fixedly installed on the upper end surface of the welding table and on both sides of the front support plate. A slide groove extending in the front-to-back direction is opened on the front support plate. A threaded rod connected to an external stepping motor is rotatably arranged inside the slide groove. The outer wall of the threaded rod is connected to a limiter that can be used to prevent the steel pipe from shaking. Among them, the limiter includes a sliding block that is always slidably set inside the slide groove and threadedly connected to the threaded rod. Two electromagnetic blocks are symmetrical along the left and right directions are set on the sliding block. During the movement, the two electromagnetic blocks are guided by the guide plate to complete synchronous approach, and the power is turned on to complete the connection with the steel pipe, so as to eliminate the shaking of the steel pipe during welding work.

[0007] Furthermore, the upper end surface of the sliding block is provided with two adjustment slots which are symmetrical in the left-right direction, and the two sliding blocks are always slidably arranged inside the corresponding adjustment slots.

[0008] Furthermore, the adjustment group includes two partitions arranged inside the mounting frame and distributed in the front-to-back direction. A support plate is provided in the area enclosed by the two partitions, the two ends of which are fixedly connected to the mounting frame and the end face of which is provided with a rectangular groove. Two wedge-shaped blocks symmetrical along the left-right direction are fixedly provided inside the rectangular groove, and two positioning parts distributed in a symmetrical manner and respectively connected to the external driving unit are slidably provided on the support plate.

[0009] Furthermore, the positioning part includes a splint with an accommodating groove provided inside, a blocking block is fixedly connected to the side of the upper end of the splint close to the steel pipe, and two through grooves extending in the up and down directions are respectively provided on the front and rear end faces of the splint, and an H-shaped positioning block with one end located inside the accommodating groove is slidingly provided inside the through groove. The end face of the positioning block located inside the accommodating groove is rotatably connected to a number of adjustment disks that can be used to press and align the fins through a bearing, and a rubber roller is rotatably provided on the end face of the adjustment disk.

[0010] Furthermore, a guide groove is provided on one side of the partition close to the splint corresponding to the positions of the two alignment blocks, and a protrusion with an inclined surface on the end face is fixedly provided inside the guide groove. A push rod fixedly connected to the alignment block is slidably connected inside the guide groove through an elastic rod.

[0011] Furthermore, a vertical plate is fixedly provided on the upper end surface of the rear support plate, and a shaft is rotatably connected to the position of the two steel pipes on the side of the vertical plate close to the mounting frame. An end of the shaft close to the mounting frame is connected to an inner support member that can be used to support the inner wall of the steel pipe, and a gear is fixedly connected to the outer wall of the other end of the shaft, and an L-shaped rack connected to the external drive unit is meshed with the outer wall of the gear.

[0012] Furthermore, the inner support member includes a pipe member rotatably arranged on the outer wall of the shaft and having an installation groove formed on the end face along the circumferential direction. An adjustment block is fixedly arranged on the outer wall of the shaft and inside the pipe member.

[0013] Furthermore, several mounting grooves are alternately installed and slidingly provided with inner support blocks for supporting the inner wall of the steel pipe and mounting blocks for reducing the sliding friction of the steel pipe, and several rollers are provided on the end faces of the mounting blocks.

[0014] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects: The present invention is provided with a limiting piece. When the threaded rod rotates, it will synchronously drive the sliding block to slide along the inside of the slide groove. At this time, under the guidance of the guide plates on both sides, it achieves a close fit with the outer wall of the steel pipe. Finally, the power on the electromagnetic blocks on both sides is turned on, so that the two electromagnetic blocks are electromagnetically connected to the upper and lower steel pipes into a whole. After the electromagnetic blocks on both sides are electromagnetically fixed, they can not only pull the steel pipe to move, but also have a limiting function. During the movement and welding process, the steel pipe will produce a certain degree of vibration and shaking. This shaking will not only affect the accuracy and stability of welding, but may also cause problems such as weld falling off or unstable welding quality. The clamping and limiting of the steel pipe by the electromagnetic blocks on both sides can effectively eliminate the shaking phenomenon that may occur in the steel pipe during movement and welding. Through the limiting effect of the electromagnetic blocks on both sides, the steel pipe can be firmly fixed in a predetermined position, thereby eliminating the shaking of the steel pipe and ensuring the stability of the welding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0016] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of the present invention; Figure 2 Schematic diagram of the three-dimensional structure of the limiting member according to an embodiment of the present invention; Figure 3 For the embodiment of the present invention Figure 2 A schematic diagram of the partially enlarged structure at point A in the middle; Figure 4 This is a schematic diagram of the structure of adjusting a group plane according to an embodiment of the present invention; Figure 5 This is a schematic structural diagram of the three-dimensional separation of the partition and the protrusion according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the positioning member part according to an embodiment of the present invention; Figure 7 For the embodiment of the present invention Figure 6 A schematic diagram of the structure with a partial enlargement at point B in the middle; Figure 8This is a schematic diagram of the three-dimensional structure of the vertical plate and the shaft rod according to an embodiment of the present invention; Figure 9 This is a schematic diagram of the three-dimensional structure of the inner support structure of an embodiment of the present invention; Figure 10 This is a schematic structural diagram of the three-dimensional separation of the sleeve and the adjustment block according to an embodiment of the present invention; Figure 11 It is a schematic structural diagram of the three-dimensional separation of the sleeve, the mounting block and the roller in an embodiment of the present invention.

[0017] The numbers in the figure represent: 1. welding table; 11. supporting plate; 12. guide plate; 13. threaded rod; 14. limiting member; 141. sliding block; 142. electromagnetic block; 15. vertical plate; 16. shaft; 17. internal support member; 171. pipe fitting; 172. adjusting block; 173. internal support block; 174. mounting block; 175. roller; 18. gear; 2. mounting frame; 3. adjusting group; 31. partition; 311. guide groove; 312. protrusion; 313. push rod; 32. support plate; 33. wedge block; 34. alignment member; 341. splint; 342. through groove; 343. alignment block; 344. adjusting disk. DETAILED DESCRIPTION

[0018] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0019] The present invention will be further described below with reference to the embodiments. Example

[0020] See also Figures 1-11 The present invention provides a technical solution: a fin plate welding device for a heat pipe plate-fin heat exchanger, comprising: The welding platform 1 has two supporting plates 11 fixedly provided on the welding platform 1 and arranged in a front-to-back symmetrical manner; A mounting frame 2 fixedly arranged on the welding table 1; An adjustment group 3 provided inside the mounting frame 2 and used for achieving fin alignment; Among them, guide plates 12 are fixedly provided on the upper end surface of the welding table 1 and on both sides of the front supporting plate 11. A slide groove extending in the front-to-back direction is opened on the front supporting plate 11. A threaded rod 13 connected to an external stepping motor is rotatably provided inside the slide groove. The outer wall of the threaded rod 13 is connected to a limiter 14 that can be used to prevent the steel pipe from shaking. Among them, the limiter 14 includes a sliding block 141 that is always slidably set inside the slide groove and threadedly connected to the threaded rod 13. Two electromagnetic blocks 142 are symmetrical along the left and right directions are set on the sliding block 141. During the movement, the two electromagnetic blocks 142 are guided by the guide plate 12 to complete synchronous approach, and the power is turned on to complete the connection with the steel pipe, so as to eliminate the shaking of the steel pipe during welding work.

[0021] Two adjustment slots are formed on the upper end surface of the sliding block 141 and are symmetrical in the left-right direction. The two sliding blocks 141 are always slidably disposed in the corresponding adjustment slots.

[0022] The adjustment group 3 includes two partitions 31 arranged inside the mounting frame 2 and distributed in the front-to-back direction. A support plate 32 is provided in the area enclosed by the two partitions 31, the two ends of which are fixedly connected to the mounting frame 2 and the end face of which has a rectangular groove. Two wedge blocks 33 symmetrical along the left-right direction are fixedly provided inside the rectangular groove, and two positioning parts 34 distributed in a symmetrical manner and respectively connected to the external driving unit are slidably provided on the support plate 32.

[0023] The aligning member 34 includes a splint 341 with an accommodating groove provided inside, and a blocking block is fixedly connected to the side of the upper end of the splint 341 close to the steel pipe, and two through slots 342 extending in the up and down directions are respectively provided on the front and rear end faces of the splint 341. An H-shaped aligning block 343 with one end located inside the accommodating groove is slidingly provided inside the through slot 342. The end face of the aligning block 343 located inside the accommodating groove is rotatably connected to a number of adjusting disks 344 that can be used to press and align the fins through a bearing, and a rubber roller is rotatably provided on the end face of the adjusting disk 344.

[0024] A guide groove 311 is provided on one side of the partition 31 close to the clamping plate 341 corresponding to the position of the two alignment blocks 343. A protrusion 312 with an inclined surface on the end face is fixedly provided inside the guide groove 311. A push rod 313 fixedly connected to the alignment block 343 is slidably connected inside the guide groove 311 through an elastic rod.

[0025] A vertical plate 15 is fixedly provided on the upper end surface of the rear support plate 11. A shaft 16 is rotatably connected to the position of the two steel pipes on the side of the vertical plate 15 close to the mounting frame 2. An end of the shaft 16 close to the mounting frame 2 is connected to an inner support member 17 that can be used to support the inner wall of the steel pipe. A gear 18 is fixedly connected to the outer wall of the other end of the shaft 16. The outer wall of the gear 18 is engaged with an L-shaped rack connected to the external drive unit.

[0026] The inner support member 17 includes a pipe member 171 rotatably mounted on the outer wall of the shaft 16 and having an installation groove formed on its end surface along the circumferential direction. An adjustment block 172 is fixedly mounted on the outer wall of the shaft 16 and inside the pipe member 171 .

[0027] Internal support blocks 173 for supporting the inner wall of the steel pipe and mounting blocks 174 for reducing the sliding friction of the steel pipe are slidably arranged in an alternating manner inside the plurality of mounting grooves, and the end faces of the mounting blocks 174 are provided with a plurality of rollers 175.

[0028] During the specific work, the installation limit work of the steel pipe: First, the two steel pipes to be processed are inserted along the positions of the two electromagnetic blocks 142 in the front (in the initial state, the two electromagnetic blocks 142 are not pushed by the guide plates 12 on both sides, and the two electromagnetic blocks 142 have not been powered on. Therefore, when the steel pipes are inserted, there is a gap between the two electromagnetic blocks 142 and the steel pipes, which does not hinder the insertion of the steel pipes). In the process of insertion, the pipe fitting 171 is made to enter the interior of the steel pipe to assist in the insertion of the steel pipe (specifically, during the insertion of the steel pipe, as the rear end length gradually increases, the longer end of the steel pipe will fall to a certain extent under the action of gravity. Since the pipe fitting 171 is installed on the outer wall of the shaft 16, when the steel pipe falls due to gravity, the pipe fitting 171 will exert an upward supporting force on the steel pipe, thereby avoiding To prevent the steel pipe from falling during the installation and insertion process, further, the installation groove opened on the pipe fitting 171 is alternately provided with installation blocks 174 with several rollers 175 installed on the end face. These rollers 175 can rotate freely during the movement of the steel pipe, thereby greatly reducing the friction between the steel pipe and the pipe fitting 171. This design not only improves the efficiency of the steel pipe movement, but also reduces the wear on the surface of the steel pipe, ensuring the smoothness and accuracy of its movement during the installation process. In addition, by arranging multiple rollers 175 on the pipe fitting 171, the force exerted on the steel pipe during the installation process can be effectively dispersed, the vibration of the steel pipe during the movement process can be reduced, and the stability and reliability of the installation are further improved) until one end of the steel pipe is in close contact with the end face of the rear vertical plate 15, and the preliminary installation of the steel pipe is completed.

[0029] Subsequently, the stepper motor is started and the threaded rod 13 is driven to rotate by its output shaft. When the threaded rod 13 rotates, it will synchronously drive the sliding block 141 to slide along the inside of the chute. At this time, under the guidance of the guide plates 12 on both sides, the left and right electromagnetic blocks 142 gradually approach each other synchronously (on the welding table 1, guide plates 12 are fixedly provided along both sides of the chute. The guide plates 12 face the side of the inner side of the chute, and their width increases from back to front, forming a slope-like structure with a certain slope. The two electromagnetic blocks 142 are close to the side of the steel pipe, and the outer diameter of the steel pipe is processed into a semicircular groove to ensure that they are in contact with the steel pipe). Good contact with the outer wall. When the sliding block 141 moves translationally along the slide groove under the driving action of the threaded rod 13, the two electromagnetic blocks 142 sliding on the sliding block 141 move synchronously under the guidance of the inclined surface of the guide plate 12. During this process, the semicircular groove of the electromagnetic block 142 will gradually approach the outer wall of the steel pipe, and under the guidance of the guide plate 12, it will eventually achieve a close fit with the outer wall of the steel pipe). Finally, the power supply on the electromagnetic blocks 142 on both sides is turned on, so that the two electromagnetic blocks 142 are electromagnetically connected to the upper and lower steel pipes into a whole, thereby completing the limiting work on the outer wall of the steel pipe.

[0030] Fin alignment and welding work: After the limiting work of the steel pipe is completed, the fin blanking mechanism located above the mounting frame 2 is turned on (not shown in the drawings of the specification) and the blanking mechanism drops the two fins into the receiving grooves of the clamping plates 341 on both sides (a chamfer is provided at the top of the receiving groove of the clamping plate 341. Specifically, the chamfered area of the clamping plate 341 is installed with a number of rotatable rollers at a certain interval along the inclined direction. The core purpose of the arrangement of these rollers is to optimize the material flow characteristics during the fin blanking process. When the fin slides down to the chamfer, due to the rotatable characteristics of the rollers, they can rotate freely around their own axes. This rotational motion effectively reduces the friction between the fin and the chamfer of the clamping plate 341, so that the fin can pass through the chamfer area more smoothly, effectively preventing the fin from getting stuck or blocked during the blanking process, thereby ensuring the continuity and stability of the entire blanking process). The upper and lower ends of the clamping plate 341 are both made of The open design is not closed. This structure allows the fins to fall freely under the action of gravity after entering the receiving groove. As the fins fall, their lower ends will fall accurately into the rectangular grooves opened on the support plate 32. In order to ensure that the fins can maintain the correct position and direction in the receiving groove, a blocking block is fixedly connected to the clamping plate 341. The function of the blocking block is to limit the lateral movement of the fins in the receiving groove. When the fins fall along the receiving groove, the blocking block will effectively restrain them to prevent the fins from being disturbed by external forces and causing position displacement, thereby avoiding them from tilting in direction. This design ensures the smooth blanking of the fins while also ensuring the stability and directionality of the fins in the receiving groove. The setting of the blocking block can effectively prevent the fins from being deflected or tilted due to external forces during the falling process, thereby ensuring that the fins can fall into the rectangular grooves of the support plate 32 in the correct posture.

[0031] After the fin blanking work is completed, at this time, the driving units on both sides are controlled to drive the corresponding clamping plates 341 to move synchronously. When the clamping plates 341 are moving, the alignment blocks 343 located inside the two through slots 342 on the same side gradually move away from each other under the guidance of the guide slots 311, and the alignment blocks 343 gradually approach the fins and fit with their outer walls under the cooperation of the push rods 313 and the protrusions 312 (specifically, an alignment block 343 with one end located inside the receiving slot is provided inside the through slot 342, and the alignment block 343 is adjusted in position by a sliding connection. When the cam 311 is in the closed position, the cam 313 is in the closed position, and the cam 313 is in the closed position, so the cam 313 is in the open position, and the cam 313 is in the closed position, so the cam 313 is in the open position, and the cam 313 is in the open position, so the cam 313 is in the open position, and the cam 313 is in the open position, so the cam 313 is in the open position, and the cam 313 is in the open position, so the cam 313 is in the open position, and the cam 313 is in the open position, so the cam 313 is in the open position, and the cam 313 is in the open position, so the cam 313 is in the open position, and the cam 313 is in the open position, so the cam 313 is in the open position, The fixed connection is provided with a protrusion 312 with an inclined end surface. When the push rod 313 slides along the guide groove 311, the inclined protrusion 312 will gradually exert a force on the push rod 313, thereby pushing the push rod 313, and then driving the alignment block 343 to slide toward the fin and gradually fit closely with the outer wall of the fin. As the splint 341 continues to slide, the two alignment blocks 343 on the same side will move away from each other, and in the process of synchronously moving away, the two alignment blocks 343 will gradually fit with the outer wall of the fin. This design not only increases the push area of the fin, but also ensures In order to ensure the stability of the fin pushing work and prevent the fin from being displaced or tilted during the processing, in order to further optimize the pushing effect of the fin, the end face of the alignment block 343 located inside the accommodating groove is rotatably connected to the adjustment disk 344 through a bearing, and the upper side of the adjustment disk 344 is rotatably connected to a rubber roller. Through the rotation of the rubber roller, the fin can be gently pressed and tightened, avoiding rigid impact on the fin. At the same time, the material and structure of the rubber roller can effectively reduce the friction and wear on the surface of the fin, thereby avoiding damage to the end face of the fin alignment block 343 that may be caused by direct rigid connection).

[0032] At the same time, the fins located inside the two receiving grooves, under the push of the corresponding clamping plates 341, will slide along the rectangular grooves opened on the support plate 32 respectively. When the two fins move to the position where the wedge blocks 33 are located, the gradually increasing height of the wedge blocks 33 will play a role, so that the fins are continuously lifted during the movement. As the fins slide along the rectangular grooves, the height of the wedge blocks 33 gradually increases, and the lifting effect on the fins is continuously strengthened. When the fins move to the highest point of the wedge blocks 33, the fins will be lifted to the predetermined position. At this time, the pushing action of the wedge blocks 33 and the resistance of the rubber rollers on both sides jointly complete the position limiting of the fins. The purpose of this position limiting design is to ensure that the fins can maintain a stable position and posture before welding, and prevent them from deflecting when subjected to vibration or other external forces. The synergistic action of the wedge blocks 33 and the rubber rollers can effectively fix the fins in the predetermined position, ensuring that they will not shift or tilt during the welding process. This design not only improves the accuracy and stability of welding, but also ensures the quality of the welded product.

[0033] After the clamping plates 341 on both sides are pushed and fitted together by the driving unit, the welding work between the fins and the steel pipe is completed by high-frequency current.

[0034] It should be noted that, when the clamping plates 341 on both sides are pushed by the driving unit, they drive the corresponding L-shaped racks (not shown in the drawings of the specification) to move. During the movement, the racks on both sides respectively engage with the corresponding gears 18 to rotate. When the gear 18 rotates, the adjusting block 172 is synchronously driven to rotate through the shaft 16. The pushing of the adjusting block 172 causes the inner support block 173 inside the mounting groove to extend (a plurality of grooves are provided at one end of the inner support block 173 close to the inner wall of the steel pipe. When these grooves contact the inner wall of the steel pipe, the friction between the inner wall of the steel pipe is increased by increasing the roughness of the contact surface. By increasing the friction, the rotation tendency of the steel pipe under the action of external force is effectively suppressed, thereby ensuring the stability of the steel pipe during processing or assembly), and the inner support work of the inner wall of the steel pipe is realized (specifically, the outer wall of the adjusting block 172 is fixed on the outer wall of the adjusting block 172). It is connected with three push-up blocks. In order to assist the installation and insertion of the steel pipe, in the initial state, the three push-up blocks will first lift the three mounting blocks 174. This design ensures that during the insertion of the steel pipe, it can not only provide sufficient support force to ensure that the steel pipe can be smoothly inserted into the predetermined position, but also the several rollers 175 on the mounting block 174 can reduce the friction during the insertion of the steel pipe, so that it can be installed more smoothly. As the installation process proceeds, when the rack drives the gear 18 and the adjustment block 172 to rotate, the push-up block will also rotate and switch to the position of the inner support block 173. At this time, the inner support work of the inner wall of the steel pipe is realized through the synchronous outward expansion of several inner support blocks 173. The main purpose of this internal support design is to prevent the steel pipe from sinking due to excessive extrusion pressure during the alignment of the fin and the steel pipe).

[0035] Finally, after the welding of the two fins is completed, the stepper motor is started to drive the threaded rod 13 to rotate, and then the electromagnetic block 142 is driven by the sliding block 141 to pull the steel pipe forward to switch the welding position. After the electromagnetic blocks 142 on both sides are fixed, they can not only pull the steel pipe to move, but also have a limiting function. During the movement and welding process, the steel pipe may produce a certain degree of vibration and shaking due to the action of various external forces. This shaking will not only affect the accuracy and stability of welding, but may also cause problems such as weld falling off or unstable welding quality. The clamping and limiting of the steel pipe by the electromagnetic blocks 142 on both sides can effectively eliminate the shaking phenomenon that may occur in the steel pipe during movement and welding. Through the limiting effect of the electromagnetic blocks 142 on both sides, the steel pipe can be firmly fixed in a predetermined position, thereby eliminating the shaking of the steel pipe and ensuring the stability of the welding process.

[0036] It is worth emphasizing that the fin plate welding equipment of the heat pipe plate fin heat exchanger has the following main advantages: Advantage 1: when the threaded rod 13 rotates, it will synchronously drive the sliding block 141 to slide along the inside of the slide groove. At this time, under the guidance of the guide plates 12 on both sides, it achieves a close fit with the outer wall of the steel pipe. Finally, the power supply on the electromagnetic blocks 142 on both sides is turned on, so that the two electromagnetic blocks 142 are electromagnetically connected to the upper and lower steel pipes into a whole. After the electromagnetic blocks 142 on both sides are electromagnetically fixed, they can not only pull the steel pipe to move, but also have a limiting function. During the movement and welding process, the steel pipe will produce a certain degree of vibration and shaking. This shaking will not only affect the accuracy and stability of welding, but may also cause problems such as weld falling off or unstable welding quality. The clamping and limiting of the steel pipe by the electromagnetic blocks 142 on both sides can effectively eliminate the shaking phenomenon that may occur in the steel pipe during movement and welding. Through the limiting effect of the electromagnetic blocks 142 on both sides, the steel pipe can be firmly fixed in a predetermined position, thereby eliminating the shaking of the steel pipe and ensuring the stability of the welding process.

[0037] Advantage 2: During the insertion process of the steel pipe, as the length of its rear end gradually increases, the longer end of the steel pipe will fall to a certain extent under the action of gravity. Since the pipe fitting 171 is installed on the outer wall of the shaft 16, when the steel pipe falls due to gravity, the pipe fitting 171 will exert an upward supporting force on the steel pipe, thereby avoiding the steel pipe from falling during the installation and insertion process. The installation groove opened on the pipe fitting 171 is alternately provided with installation blocks 174 with several rollers 175 installed on the end face. These rollers 175 can rotate freely during the movement of the steel pipe, thereby greatly reducing the friction between the steel pipe and the pipe fitting 171. This design not only improves the efficiency of the steel pipe movement, but also reduces the wear on the surface of the steel pipe, ensuring the smoothness and accuracy of its movement during the installation process. In addition, by arranging multiple rollers 175 on the pipe fitting 171, the force exerted on the steel pipe during the installation process can be effectively dispersed, the vibration of the steel pipe during the movement can be reduced, and the stability and reliability of the installation are further improved.

[0038] Advantage three, when the splint 341 moves, the alignment blocks 343 located inside the two through grooves 342 on the same side gradually move away from each other under the guidance of the guide groove 311, and the alignment blocks 343 will slide along the guide groove 311 under the linkage action of the push rod 313, and its height will change accordingly with the shape change of the guide groove 311. The interior of the guide groove 311 is also fixedly connected to a protrusion 312 with an inclined end surface. When the push rod 313 slides along the guide groove 311, the inclined protrusion 312 will gradually align with the push rod 313 exerts a force, thereby pushing the push rod 313, and then driving the alignment block 343 to slide toward the fin, and gradually fit closely with the outer wall of the fin. As the clamping plate 341 continues to slide, the two alignment blocks 343 on the same side will move away from each other, and in the process of synchronous moving away, the two alignment blocks 343 will gradually fit with the outer wall of the fin. This design not only increases the push area of the fin, but also ensures the stability of the push work of the fin, preventing the fin from displacement or tilting during the processing, in order to further optimize the push effect of the fin.

[0039] Advantage four: the end face of the alignment block 343 located inside the accommodating groove is rotatably connected to the adjusting disk 344 through a bearing, and the upper side of the adjusting disk 344 is rotatably connected to a rubber roller. Through the rotation of the rubber roller, the fins can be gently pressed against, avoiding rigid impact on the fins. At the same time, the material and structure of the rubber roller can effectively reduce the friction and wear on the fin surface, thereby avoiding damage to the end face of the fin alignment block 343 that may be caused by direct rigid connection.

[0040] Advantage five: three push blocks are fixedly connected to the outer wall of the adjustment block 172. In order to assist the installation and insertion of the steel pipe, in the initial state, the three push blocks are designed to preferentially lift the three mounting blocks 174. This design ensures that during the insertion of the steel pipe, it can not only provide sufficient supporting force to ensure that the steel pipe can be smoothly inserted into the predetermined position, but also the several rollers 175 on the mounting block 174 can reduce the friction during the insertion of the steel pipe, so that it can be installed more smoothly. As the installation process proceeds, when the rack drives the gear 18 and the adjustment block 172 to rotate, the push block will also rotate and switch to the position of the inner support block 173. At this time, the internal support work of the inner wall of the steel pipe is realized through the synchronous outward expansion of several inner support blocks 173. The main purpose of this internal support design is to prevent the steel pipe from being dented due to excessive extrusion pressure during the alignment of the fin and the steel pipe.

[0041] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A fin plate welding device for a heat pipe plate-fin heat exchanger, characterized in that: include: A welding platform (1), wherein two supporting plates (11) are fixedly provided on the welding platform (1) and are distributed in a front-to-back symmetrical manner; A mounting frame (2) fixedly mounted on the welding table (1); An adjustment group (3) disposed inside the mounting frame (2) and used to achieve fin alignment; Wherein, guide plates (12) are fixedly provided on the upper end surface of the welding table (1) and on both sides of the front supporting plate (11); a slide groove extending in the front-to-back direction is provided on the front supporting plate (11); a threaded rod (13) connected to an external stepping motor is rotatably provided inside the slide groove; and a limiter (14) for preventing the steel pipe from shaking is connected to the outer wall of the threaded rod (13); The limiting member (14) includes a sliding block (141) that is always slidably arranged inside the slide groove and is threadedly connected to the threaded rod (13). Two electromagnetic blocks (142) symmetrical along the left and right directions are arranged on the sliding block (141). During the movement, the two electromagnetic blocks (142) are guided by the guide plate (12) to complete synchronous approach, and are connected to the steel pipe when the power is turned on, thereby eliminating the shaking of the steel pipe during the welding work.

2. The fin plate welding equipment of a heat pipe plate-fin heat exchanger according to claim 1, characterized in that: The upper end surface of the sliding block (141) is provided with two adjustment slots that are symmetrical in the left-right direction, and the two sliding blocks (141) are always slidably arranged inside the corresponding adjustment slots.

3. The fin plate welding equipment of a heat pipe plate-fin heat exchanger according to claim 1, characterized in that: The adjustment group (3) includes two partitions (31) arranged inside the mounting frame (2) and distributed in the front-to-back direction. A support plate (32) is provided in the area enclosed by the two partitions (31), the two ends of which are respectively fixedly connected to the mounting frame (2) and the end surface of which is provided with a rectangular groove. Two wedge-shaped blocks (33) symmetrical in the left-right direction are fixedly provided inside the rectangular groove. Two positioning members (34) distributed in a symmetrical manner and respectively connected to the external driving unit are slidably provided on the support plate (32).

4. The fin plate welding equipment of a heat pipe plate-fin heat exchanger according to claim 3, characterized in that: The alignment member (34) includes a clamping plate (341) with an accommodating groove provided therein, a blocking block is fixedly connected to the side of the upper end of the clamping plate (341) close to the steel pipe, and two through grooves (342) extending in the up-down direction are respectively provided on the front and rear end faces of the clamping plate (341), and an H-shaped alignment block (343) with one end located inside the accommodating groove is slidably provided inside the through groove (342), and the end face of the alignment block (343) located inside the accommodating groove is rotatably connected to a plurality of adjustment disks (344) that can be used to press and align the fins through a bearing, and a rubber roller is rotatably provided on the end face of the adjustment disk (344).

5. The fin plate welding equipment of a heat pipe plate-fin heat exchanger according to claim 4, characterized in that: A guide groove (311) is provided on one side of the partition (31) close to the clamping plate (341) at positions corresponding to the two alignment blocks (343). A protrusion (312) with an inclined surface provided on the end face is fixedly provided inside the guide groove (311). A push rod (313) fixedly connected to the alignment block (343) is slidably connected inside the guide groove (311) via an elastic rod.

6. The fin plate welding equipment for a heat pipe plate-fin heat exchanger according to claim 1, characterized in that: A vertical plate (15) is fixedly provided on the upper end surface of the rear support plate (11); a shaft (16) is rotatably connected to the position of the two steel pipes on the side of the vertical plate (15) close to the mounting frame (2); an inner support member (17) that can be used to support the inner wall of the steel pipe is connected to one end of the shaft (16) close to the mounting frame (2); a gear (18) is fixedly connected to the outer wall of the other end of the shaft (16); and an L-shaped rack connected to an external drive unit is meshed with the outer wall of the gear (18).

7. The fin plate welding equipment of a heat pipe plate-fin heat exchanger according to claim 6, characterized in that: The inner support member (17) comprises a pipe member (171) rotatably mounted on the outer wall of the shaft (16) and having an installation groove formed on its end face in a circumferential direction. An adjustment block (172) is fixedly mounted on the outer wall of the shaft (16) and inside the pipe member (171).

8. The fin plate welding equipment for a heat pipe plate-fin heat exchanger according to claim 7, characterized in that: Internal support blocks (173) for supporting the inner wall of the steel pipe and mounting blocks (174) for reducing the sliding friction of the steel pipe are slidably arranged in a manner of alternating installation inside the plurality of mounting grooves, and the end faces of the mounting blocks (174) are provided with a plurality of rollers (175).

Images