Finned heat exchanger welding equipment and welding method

Abstract

The invention relates to the technical field of finned heat exchanger machining, and discloses finned heat exchanger welding equipment and method.The finned heat exchanger welding equipment comprises a frame body, a storage module used for storing finned tubes is arranged at one end of the frame body, and a discharging module used for discharging and transferring the finned tubes is arranged at the bottom of the storage module; one side of the storage module is provided with a transfer module used for discharging semi-finished products obtained after the finned tubes and the frame are welded, the transfer module and the discharging module are both connected with the frame body through an electric sliding table, and the other end of the frame body is provided with a position adjusting module used for adjusting the positions of the finned tubes and the frame; according to the finned tube and frame welding device, through precise cooperation of the discharging module, the storing module, the transferring module, the welding module and the position adjusting module, automatic welding of the finned tubes and the frame is achieved, the labor amount of workers is reduced, and the labor cost of a factory is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of finned heat exchanger processing, in particular to a finned heat exchanger welding device and a welding method. Background Art

[0002] Finned heat exchanger is a device used for air heating in drying systems. It is mainly composed of fins, base tubes and frames. The fins are mostly arranged longitudinally and radially, and the base tubes are mostly round tubes.

[0003] At present, some heat exchange tubes on the market use a ring gear method to weld the fins to the base tube, and then weld frames at both ends of the heat exchange tube to form a heat exchanger.

[0004] After searching, the Chinese patent with publication number CN211680453U discloses an automatic welding machine for finned heat exchangers, which uses a combination of three screw drive mechanisms to drive the welding gun to move three-dimensionally from different directions, so that copper pipe joints of different heights can be welded, and multiple rows of copper pipe joints can be welded. However, there are still the following problems: 1. Before welding the copper pipe joint, the copper pipe and the frame need to be welded in advance to ensure the stability of the transfer of the heat exchanger that has not yet been processed. If the copper pipe and the frame are welded manually, the quality of welding depends heavily on the workers' skills, resulting in unstable welding quality of the heat exchanger; 2. When using machinery for welding, multiple fin tubes need to be manually inserted into the frame, and workers need to keep the fin tubes and the frame stable so that the machine can weld the fin tubes and the frame at one time, resulting in high workload for workers and reduced efficiency over time; 3. When welding the fin tubes to the frame, workers usually take multiple fin tubes at a time and place them randomly, causing the fin tubes to be easily damaged by foreign objects. Summary of the invention

[0005] Technical issues solved In view of the shortcomings of the prior art, the present invention provides a fin heat exchanger welding device, which is mainly used to solve the problem that the copper tube and the frame need to be welded in advance before the copper tube joint is welded. The copper tube and the frame are welded manually, and the quality of welding is very dependent on the workers' skills, resulting in unstable welding quality of the heat exchanger. When welding the fin tube and the frame, workers usually take multiple fin tubes at a time and place them randomly, resulting in the problem that the fin tube is easily damaged by foreign objects.

[0006] Technical Solution To achieve the above object, the present invention provides the following technical solutions: A fin heat exchanger welding device comprises a frame, one end of which is provided with a storage module for storing fin tubes, the bottom of which is provided with a discharge module for arranging and transporting the fin tubes, one side of which is provided with a transfer module for discharging semi-finished products welded between the fin tubes and the frame, and both the transfer module and the discharge module are connected to the frame through an electric slide, the other end of the frame is provided with a positioning module for adjusting the position of the fin tubes and the frame, the upper part of the positioning module is provided with a welding module for welding the fin tubes and the frame, and both sides of the frame are provided with pushing components for placing frame plates.

[0007] Furthermore, the material storage module includes two discharge racks, both of which are fixed to the bottom inner wall of the frame body by bolts, and the two discharge racks are symmetrically distributed, the fin tubes are placed in the groove between the two discharge racks, and the opposite sides of the two discharge racks are provided with limiting mechanisms to block the discharge of the fin tubes.

[0008] On the basis of the above scheme, the limiting mechanism includes a first socket, which is opened on one side of the frame body, an L-shaped rod is slidably connected in the first socket, the end of the L-shaped rod that contacts the discharge module is an inclined surface, and a sliding rod is welded to the other end of the L-shaped rod. A second socket is penetrated on one side of the two discharge racks, a gear rod is inserted in the second socket, a sliding hole is opened on one side of the gear rod, and the sliding rod slides in the sliding hole, a first tension spring is fixed to the inner wall of one side of the L-shaped rod by bolts, and the other end of the first tension spring is fixed to the discharge rack.

[0009] As a further solution of the present invention, the discharge module includes a slide seat, which is arranged between the inner walls of both sides of the frame through an electric slide, and the top of the slide seat is detachably connected to two symmetrically distributed support rods by bolts, and the distance between the two support rods is greater than the total length of the fins on the fin tube, and a plurality of evenly distributed limit grooves are provided on the tops of the two support rods.

[0010] Furthermore, the transfer module includes a slide plate, which is arranged between the inner walls on both sides of the frame through an electric slide, a hydraulic cylinder is fixed to the top of the slide plate by bolts, the piston end of the hydraulic cylinder passes through the slide plate and is fixed to a connecting plate by bolts, the bottom of the connecting plate is fixed to a guide frame by bolts, a two-way screw rod is rotatably connected between the inner walls on both sides of the guide frame, both ends of the two-way screw rod are threadedly connected to a clamping frame, a motor is fixed to the outer wall of one side of the guide frame by bolts, and the output shaft of the motor passes through the guide frame and is fixed to the two-way screw rod, the top four corners of the connecting plate are fixed with guide rods by bolts, and one end of the guide rod passes through the slide plate and is slidably connected to the slide plate.

[0011] The cam is provided with a first end fixedly mounted on the bottom of the frame body, and a fixing rod is welded on one end of the cam, and a guide groove is provided on one side of the cam, and a second guide groove is slidably connected to the cam.

[0012] As a further solution of the present invention, the welding module includes a guide rail, which is fixed to the top inner wall of the frame by bolts, and the bottom of the guide rail is slidably connected to a connecting seat, and the bottom of the connecting seat is fixed with a laser welding head by bolts, and a connecting plate is provided on one side of the laser welding head, and a servo motor is fixed with bolts on one side of the guide rail, and the output shaft of the servo motor passes through the guide rail and is fixed with a threaded rod through a coupling, and the threaded rod is threadedly connected to the connecting seat.

[0013] Furthermore, the pushing assembly includes a fixing plate, which is fixed to the bottom inner wall of the frame body by bolts, one side of the fixing plate is provided with two sliding openings, a connecting frame is slidably connected in the two sliding openings, a placing frame is welded to one side of the connecting frame, a placing groove is provided on the top of the placing frame, and a plurality of evenly distributed arc-shaped elastic plates are welded to the inner walls on both sides of the placing groove, two second tension springs are fixed to one side of the fixing plate by bolts, and the other end of the second tension spring is fixed to the connecting frame.

[0014] As a further solution of the present invention, a placing plate is rotatably connected between the inner walls on both sides of the frame through a rotating shaft, one end of the two rotating shafts passes through the frame and is fixed with a torsion spring by bolts, and the other end of the torsion spring is fixed to the frame, and a material receiving tray is fixed to the outer wall of one side of the frame by bolts, and a sponge pad is bonded to the inner wall of one side of the material receiving tray.

[0015] A welding method for a finned heat exchanger device comprises the following steps: S1: Place multiple fin tubes in the groove between two discharge racks. Under the action of gravity, the fin tube at the bottom will contact the stop bar; S2: When the L-shaped rod contacts the support rod, the support rod squeezes the L-shaped rod to move, thereby pulling the first tension spring to deform and generate tension, and then pulling the lever, so that one end of the lever enters the second plug hole, thereby breaking away from the contact with the fin tube, and the fin tube falls into the limit groove to arrange the fin tube; S3: The electric slide drives the slide to move, and the other fin tubes fall into another limit groove, thereby completing the arrangement of the fin tubes. When there is also a fin tube in the last limit groove, the L-shaped rod is disengaged from the support rod, and the first tension spring that is pulled and deformed is reset, thereby driving the L-shaped rod and the stop rod to move, and then the stop rod blocks the fin tube. When the electric slide drives the slide and the fin tube to move subsequently, the fin tube will not slide off; S4: When the fin tube is transferred by the discharge module, the support plate on the second slide will be inserted between the fin tube and the slide seat, and the oil cylinder will be started, and the oil cylinder will drive the support plate on the second slide to move, so that the support plate drives the fin tube to leave the limit groove, and then the electric slide will drive the slide seat to reset, and at the same time the oil cylinder will drive the first slide to move to the second slide; S5: During the process of the slide seat resetting, the support rod will squeeze the inclined surface to move the L-shaped rod, and then the slide rod will slide in the slide hole. When the slide seat is in the initial position, pull the lever to make one end of the lever enter the second plug hole, and the fin tube will fall into the limit groove again, and a new round of arrangement and transportation will be carried out; S6: When two groups of fin tubes are formed, the oil cylinder will drive the fin tubes to move to the welding module. During this process, the baffle will be driven by the first slide to move upward. When the placement rack is located at the notch, the baffle will be out of contact with the placement rack. At this time, the second tension spring that is pulled and deformed will pull the connecting rack and the placement rack to move, so that the frame plate is sleeved on the outer side of the circumference of the fin tube. The oblique opening on the baffle will cause the frame plate to slowly sleeve on the fin tube, and the upward movement of the fin tube will drive the frame plate to separate from the placement rack. S7: Start the servo motor and the laser welding machine, and drive the connection plate to rotate through the stepper motor, so that the laser welding head performs circular welding, and welds the frame plate and the fin tube at the current position. The servo motor drives the threaded rod to rotate, so that the connection seat slides on the guide rail, and then changes the position of the laser welding head, so as to weld the remaining fin tubes and frame plates in the same row. After welding one row, the positioning module drives the fin tubes and the frame plate to move, and changes the longitudinal position of the fin tubes and the frame plate, and then welds the fin tubes and the frame plate in another row, which can form a firm weld without manual welding; S8: After the fin tube and the frame plate are welded into a semi-finished product, the electric slide will drive the slide plate to move to the semi-finished product, start the hydraulic cylinder, and the hydraulic cylinder will drive the connecting plate to move so that the connecting plate contacts the semi-finished product. Then start the motor, and the motor drives the bidirectional screw to rotate, so that the two clamps move in opposite directions to clamp the semi-finished product. At this time, adjust the position of the positioning module to make the semi-finished product disengage from the positioning module, and use the electric slide to drive the slide plate to disengage from the welding module so that the positioning module can be reset; S9: When the semi-finished product is brought to the top of the placement plate by the transfer module, the semi-finished product is placed on the placement plate by the hydraulic cylinder, and the semi-finished product is clamped by the motor. Under the action of gravity, the semi-finished product will press the placement plate to rotate, and make the placement plate contact with the receiving tray and the inner wall flush. The semi-finished product will slide onto the receiving tray and be cushioned and prevented from collision by the sponge pad, making it convenient for workers to pick up the semi-finished product for subsequent processing.

[0016] Beneficial Effects Compared with the prior art, the present invention provides a fin heat exchanger welding device and a welding method, which have the following beneficial effects: 1. The present invention realizes the automatic welding of the fin tube and the frame through the precise coordination of the material discharging module, the material storage module, the transfer module, the welding module and the positioning module, thereby reducing the labor workload of the workers and the labor cost of the factory.

[0017] 2. The present invention is provided with a storage module. Workers first put a plurality of fin tubes into the storage module one by one, and place the fin tubes at a specific location and away from the ground, so that foreign objects are not easy to touch the fin tubes, thereby improving the protection effect of the fin tubes.

[0018] 3. The present invention uses a welding module and a laser welding head to perform high-precision control, ensure the uniformity and consistency of welding, reduce the heat-affected zone, improve mechanical properties and service life, and eliminate the adverse effects of workers' welding errors, thereby improving the quality of the finished heat exchanger.

[0019] 4. The present invention can arrange the fin tubes evenly through the discharging module, and transport the arranged fin tubes. During the transportation process, the fin tubes will not be displaced, and there is no need to adjust the position twice, thereby improving the accuracy of welding.

[0020] 5. The present invention can transfer the semi-finished products formed by welding the fin tubes and the frame plates through the transfer module, without waiting for workers to shift, which is convenient for resetting the adjustment module, so that the whole equipment can continue to operate and improve the welding efficiency of the semi-finished products. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the upper three-dimensional structure of a fin heat exchanger welding device proposed by the present invention; Figure 2 A schematic diagram of the bottom three-dimensional structure of a fin heat exchanger welding device proposed by the present invention; Figure 3 This is an enlarged structural schematic diagram of a discharge module of a finned heat exchanger welding device proposed by the present invention; Figure 4 This is an enlarged structural schematic diagram of a material storage module of a finned heat exchanger welding device proposed by the present invention; Figure 5 A partial cross-sectional structural schematic diagram of a fin heat exchanger welding device proposed by the present invention; Figure 6 This is an enlarged structural schematic diagram of a push assembly of a finned heat exchanger welding device proposed by the present invention; Figure 7 This is an enlarged structural schematic diagram of a transfer module of a finned heat exchanger welding device proposed by the present invention; Figure 8 This is an enlarged structural schematic diagram of a welding module of a finned heat exchanger welding device proposed by the present invention; Fig. 9 This is an enlarged structural schematic diagram of a positioning module of a finned heat exchanger welding device proposed by the present invention; Fig.10 A fin heat exchanger welding device proposed by the present invention Figure 1 A schematic diagram of the enlarged structure of part A; Fig.11 A fin heat exchanger welding device proposed by the present invention Figure 1 Schematic diagram of the enlarged structure of the baffle.

[0022] In the figure: 1, frame; 2, discharge module; 201, slide seat; 202, support rod; 203, limit slot; 3, storage module; 301, discharge rack; 302, L-shaped rod; 303, first tension spring; 304, first plug hole; 305, second plug hole; 306, gear lever; 307, slide hole; 308, slide rod; 309, inclined plane; 4, fixed plate; 5, transfer module; 501, slide plate; 502, guide rod; 503, hydraulic cylinder; 504, connecting plate; 505, guide frame; 506, clamping frame; 507, two-way screw rod; 508, motor; 6, welding module; 601, guide rail; 602, guide rod; 603, hydraulic cylinder; 604, connecting plate; 605, guide frame; 606, clamping frame; 607, two-way screw rod; 608, motor; 609, welding module; 601, guide rail; 601, guide rail; 609 ... 02, threaded rod; 603, servo motor; 604, connecting seat; 605, connecting plate; 606, laser welding head; 607, ring frame; 7, receiving plate; 8, sponge pad; 9, adjustment module; 901, cylinder; 902, first slide; 903, fixing rod; 904, guide groove; 905, shaped frame; 906, second slide; 907, support plate; 908, notch; 909, baffle; 910, limit rod; 10, placement plate; 11, placement frame; 12, placement groove; 13, arc-shaped elastic plate; 14, connecting frame; 15, second tension spring; 16, rotating shaft; 17, torsion spring. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0024] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present invention, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0025] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0026] Reference Figure 1-Figure 11 A fin heat exchanger welding device and welding method, comprising a frame 1, a storage module 3 for storing fin tubes is provided at one end of the frame 1, a discharge module 2 for arranging and transferring the fin tubes is provided at the bottom of the storage module 3, a transfer module 5 for discharging semi-finished products after the fin tubes and the frame are welded is provided on one side of the storage module 3, and the transfer module 5 and the discharge module 2 are both connected to the frame 1 through an electric slide, a positioning module 9 for adjusting the position of the fin tubes and the frame is provided at the other end of the frame 1, a welding module 6 for welding the fin tubes and the frame is provided above the positioning module 9, and a pushing assembly for placing a frame plate is provided on both sides of the frame 1. When in use, a worker first puts a plurality of fin tubes into the storage module 3 one by one, and places the fin tubes in a specific The fin tubes are arranged in a certain location and away from the ground, so that foreign objects are not easy to touch the fin tubes, thereby improving the protection effect of the fin tubes. Then, the fin tubes are combined and arranged through the discharge module 2, and the arranged fin tubes are transferred to the positioning module 9. The arranged fin tubes are separated from the discharge module 2 through the positioning module 9, and the fin tubes are layered and positioned. The positioning module 9 can bring the layered and positioned fin tubes to the welding module 6. In the process of the positioning module 9 driving the fin tubes to move, the pushing component will cover the frame plate on the grouped fin tubes. After the fin tubes and the frame plate are moved to the welding module 6, the welding module 6 will weld them, and can automatically position and weld without the assistance of workers. After the welding is completed, the welded semi-finished products are transferred through the transfer module 5, so that the positioning module 9 is reset.

[0027] In order to arrange and place the fin tubes, the storage module 3 in the present invention includes two discharge racks 301, and the two discharge racks 301 are fixed to the bottom inner wall of the frame body 1 by bolts, and the two discharge racks 301 are symmetrically distributed, and the opposite sides of the two discharge racks 301 are provided with limiting mechanisms to block the discharge of the fin tubes. The fin tubes are placed in the groove between the two discharge racks 301. Under the action of gravity, the fin tubes at the bottom will contact the limiting mechanism, and the limiting mechanism will release the blocking of the fin tubes, and the fin tubes will fall on the discharge module 2.

[0028] The limiting mechanism includes a first plug hole 304, which is provided on one side of the frame body 1, and an L-shaped rod 302 is slidably connected in the first plug hole 304, and one end of the L-shaped rod 302 in contact with the discharge module 2 is an inclined surface 309, and a sliding rod 308 is welded to the other end of the L-shaped rod 302. A second plug hole 305 is provided through one side of the two discharge racks 301, and a gear rod 306 is inserted in the second plug hole 305. A sliding hole 307 is provided on one side of the gear rod 306, and the sliding rod 308 slides in the sliding hole 307. A first tension spring 303 is fixed to the inner wall of one side of the L-shaped rod 302 by bolts, and the first tension spring 30 The other end of 3 is fixed to the discharge rack 301. When the discharge module 2 contacts the L-shaped rod 302, the gear rod 306 is pulled to move, so that one end of the sliding rod 308 contacts the inner wall of one side of the sliding hole 307. At this time, one end of the gear rod 306 enters the second plug hole 305, and then breaks away from the contact with the fin tube, and the fin tube can fall on the discharge module 2. When the L-shaped rod 302 breaks away from the discharge module 2, the first tension spring 303 that is pulled and deformed is reset, thereby driving the L-shaped rod 302 and the gear rod 306 to move, and then the gear rod 306 blocks the fin tube, thereby limiting the fin tube, improving the fixing effect of the device.

[0029] In order to arrange and transport the fin tubes, the discharge module 2 in the present invention includes a slide 201, which is arranged between the inner walls of both sides of the frame 1 through an electric slide. The top of the slide 201 is detachably connected to two symmetrically distributed support rods 202 by bolts, and the distance between the two support rods 202 is greater than the total length of the fins on the fin tubes. A plurality of evenly distributed limit grooves 203 are provided on the tops of the two support rods 202. When the gear lever 306 is not in contact with the fin tube, the fin tube will fall into one of the limit grooves 203, and the electric slide drives the slide 201 to move, so that the other fin tubes fall into the other limit grooves 203, thereby completing the arrangement of the fin tubes. After the arrangement is completed, the electric slide drives the slide 201 and the fin tubes to move to the adjustment module 9 for subsequent processing.

[0030] In order to layer the arranged fin tubes, the positioning module 9 in the present invention includes a cylinder 901, which is fixed to the bottom inner wall of the frame 1 by bolts, and the piston end of the cylinder 901 is fixed with a first slide 902 by bolts, and a fixing rod 903 is welded to one end of the first slide 902, and a guide groove 904 is penetrated through one side of the fixing rod 903, and a second slide 906 is slidably connected in the guide groove 904, and a threaded hole is opened on one side of the second slide 906, and a fixing screw is threadedly connected in the threaded hole, and the circumferential outer wall of the fixing screw The rotatable connection is provided with a shaped frame 905, and the shaped frame 905 is in contact with the fixed rod 903. One side of the first slide 902 and the second slide 906 are detachably connected to two support plates 907 by bolts. The support plates 907 of different specifications can be replaced. The fixing screws are turned to disengage the shaped frame 905 from one side of the fixed rod 903, so that the second slide 906 can slide in the guide groove 904, and then the distance between the support plate 907 on the first slide 902 and the support plate 907 on the second slide 906 can be adjusted according to needs. A baffle 909 is fixed to both ends of one side of a slide 902 by bolts, a notch 908 is provided on one side of the baffle 909, an oblique opening is provided on the side of the baffle 909 that contacts the pushing component, and the oblique opening is connected to the notch 908, a limit rod 910 is fixed between the inner walls of the two sides of the frame 1 by bolts, and the first slide 902 and the second slide 906 both slide on the circumferential outer wall of the limit rod 910, when the fin tube is transferred by the discharge module 2, the support plate 907 on the second slide 906 will be inserted between the fin tube and the slide seat 201, and the start Cylinder 901, the cylinder 901 will drive the support plate 907 on the second slide 906 to move, so that the support plate 907 drives the fin tube to separate from the discharge module 2. After separation, the discharge module 2 will be reset and another group of fin tubes will be transferred. In the same way, the support plate 907 on the first slide 902 drives the fin tube to separate from the discharge module 2 and reset the discharge module 2. The cylinder 901 continues to start, and the cylinder 901 will transport the two groups of arranged fin tubes to the welding module 6. During the transfer process, the pushing assembly will put the frame plate on the fin tube.

[0031] In order to weld the fin tube and the frame plate, the welding module 6 in the present invention includes a guide rail 601, which is fixed to the top inner wall of the frame 1 by bolts, and the bottom of the guide rail 601 is slidably connected to a connecting seat 604, and the bottom of the connecting seat 604 is fixedly connected to an annular frame 607, and one side of the annular frame 607 is rotatably connected to a connecting disk 605, and one side of the connecting disk 605 is provided with a laser welding head 606, and the laser welding head 606 can rotate on the connecting disk 605 to change the welding angle of the laser welding head 606, so as to be suitable for fin tubes of different lengths, and a stepper motor is fixed to the inner wall of one side of the annular frame 607 by bolts, and the output shaft of the stepper motor is fixed to the connecting disk 605, and the laser welding head 606 is used in conjunction with a welding machine of model DF-NL600W, and a servo motor 603 is fixed to one side of the guide rail 601 by bolts. The output shaft of the servo motor 603 passes through the guide rail 601 and is fixed with a threaded rod 602 through a coupling, and the threaded rod 602 is threadedly connected to the connecting seat 604. When the frame plate and the fin tube are transported to the welding module 6, the servo motor 603 and the laser welding machine are started, and the laser welding head 606 can weld the frame plate and the fin tube at the current position. The servo motor 603 will drive the threaded rod 602 to rotate, so that the connecting seat 604 slides on the guide rail 601, and then change the position of the laser welding head 606, so as to weld the remaining fin tubes and frame plates in the same row. After welding one row, the positioning module 9 will drive the fin tubes and the frame plate to move, change the longitudinal position of the fin tubes and the frame plate, and then weld the fin tubes and the frame plate of another row, which can form a firm weld and does not require manual welding, thereby improving the quality of the finished product of the heat exchanger after processing.

[0032] In order to put the frame plate on the fin tube, the pushing assembly in the present invention includes a fixing plate 4, which is fixed to the bottom inner wall of the frame body 1 by bolts, and one side of the fixing plate 4 is provided with two sliding openings, and a connecting frame 14 is slidably connected in the two sliding openings, and a placing frame 11 is welded to one side of the connecting frame 14, and a placing groove 12 is provided on the top of the placing frame 11, and a plurality of evenly distributed arc-shaped elastic plates 13 are welded to the inner walls of both sides of the placing groove 12, and the arc-shaped elastic plates 13 are made of elastic metal material, preferably spring steel, and one side of the fixing plate 4 is fixed with two second tension springs 15 by bolts, and the other side of the second tension spring 15 The end is fixed to the connecting frame 14, the frame plate is placed in the placement groove 12, and the frame plate is assisted in fixing by the arc-shaped elastic plate 13. When the placement frame 11 is located at the notch 908, the baffle 909 is out of contact with the placement frame 11. At this time, the second tension spring 15 that is pulled and deformed will pull the connecting frame 14 and the placement frame 11 to move, so that the frame plate is sleeved on the outer side of the circumference of the fin tube. The oblique opening on the baffle 909 will cause the frame plate to slowly sleeve on the fin tube, and the upward movement of the fin tube will drive the frame plate to separate from the placement frame 11, and the oblique opening on the baffle 909 will also squeeze the placement frame 11 to reset when the baffle 909 is reset.

[0033] In order to separate the semi-finished product from the equipment, the transfer module 5 in the present invention includes a slide plate 501, which is arranged between the inner walls on both sides of the frame 1 through an electric slide, and a hydraulic cylinder 503 is fixed to the top of the slide plate 501 by bolts, and the piston end of the hydraulic cylinder 503 passes through the slide plate 501 and is fixed to a connecting plate 504 by bolts, and a guide frame 505 is fixed to the bottom of the connecting plate 504 by bolts, and a two-way screw rod 507 is rotatably connected between the inner walls on both sides of the guide frame 505, and both ends of the two-way screw rod 507 are threadedly connected to a clamping frame 506, and a motor 508 is fixed to the outer wall of one side of the guide frame 505 by bolts, and the output shaft of the motor 508 passes through the guide frame 505 and is fixed to the two-way screw rod 507, and the connecting plate 5 The four top corners of 04 are fixed with guide rods 502 by bolts, and one end of the guide rod 502 passes through the slide plate 501 and is slidably connected to the slide plate 501. After the fin tube and the frame plate are welded into a semi-finished product, the electric slide will drive the slide plate 501 to move to the semi-finished product, start the hydraulic cylinder 503, and the hydraulic cylinder 503 will drive the connecting plate 504 to move, so that the connecting plate 504 contacts the semi-finished product, and then start the motor 508. The motor 508 drives the bidirectional screw rod 507 to rotate, so that the two clamps 506 move in opposite directions to clamp the semi-finished product. At this time, the position of the positioning module 9 is adjusted to make the semi-finished product disengage from the positioning module 9, and the electric slide is used to drive the slide plate 501 to disengage from the welding module 6 so that the positioning module 9 can be reset.

[0034] Among them, a placing plate 10 is rotatably connected between the inner walls on both sides of the frame 1 through a rotating shaft 16, one end of the two rotating shafts 16 pass through the frame 1 and are fixed with torsion springs 17 by bolts, and the other end of the torsion spring 17 is fixed to the frame 1, and a receiving tray 7 is fixed to the outer wall of one side of the frame 1 by bolts, and a sponge pad 8 is bonded to the inner wall of one side of the receiving tray 7. After the semi-finished product is driven and separated by the transfer module 5, the semi-finished product will be brought to the top of the placing plate 10, and the semi-finished product will be placed on the placing plate 10 by the hydraulic cylinder 503, and the clamping of the semi-finished product will be released by the motor 508. Under the action of gravity, the semi-finished product will press the placing plate 10 to rotate, and make the placing plate 10 contact with the receiving tray 7 and the inner wall flush, the semi-finished product will slide onto the receiving tray 7, and be cushioned and prevented by the sponge pad 8, so that the workers can take the semi-finished product for subsequent processing.

[0035] A welding method for a finned heat exchanger device is divided into the following steps: S1: placing a plurality of fin tubes in the groove between the two discharge racks 301, and under the action of gravity, the fin tube at the bottom will contact the stop rod 306; S2: When the L-shaped rod 302 contacts the support rod 202, the support rod 202 will squeeze the L-shaped rod 302 to move, thereby pulling the first tension spring 303 to deform and generate tension, and then pull the gear rod 306, so that one end of the gear rod 306 enters the second plug hole 305, and then breaks away from the contact with the fin tube, and the fin tube will fall into the limiting groove 203, and the fin tube will be arranged; S3: The slide 201 is driven to move by the electric slide, and the other fin tubes fall into another limiting groove 203, thereby completing the arrangement of the fin tubes. When there is also a fin tube in the last limiting groove 203, the L-shaped rod 302 is disengaged from the support rod 202, and the first tension spring 303 that is pulled and deformed is reset, thereby driving the L-shaped rod 302 and the stop rod 306 to move, and then the stop rod 306 blocks the fin tube. When the electric slide drives the slide 2 and the fin tube to move subsequently, the fin tube will not slide off; S4: When the fin tube is transferred by the discharge module 2, the support plate 907 on the second slide 906 will be inserted between the fin tube and the slide 201, and the oil cylinder 901 will be started, and the oil cylinder 901 will drive the support plate 907 on the second slide 906 to move, so that the support plate 907 drives the fin tube to leave the limiting groove 203, and then the electric slide will drive the slide 201 to reset, and at the same time, the oil cylinder 901 will drive the first slide 902 to move to the second slide 906; S5: During the process of the slide 201 being reset, the support rod 202 will squeeze the inclined surface 309, so that the L-shaped rod 302 moves, and then the slide rod 308 slides in the slide hole 307. When the slide 201 is in the initial position, the shift rod 306 is pulled, so that one end of the shift rod 306 enters the second plug hole 305, and the fin tube falls into the limit groove 203 again, and a new round of arrangement and transportation is carried out; S6: When two groups of fin tubes are formed, the oil cylinder 901 will drive the fin tubes to move to the welding module 6. During this process, the baffle 909 will be driven by the first slide 902 to move upward. When the placement rack 11 is located at the notch 908, the baffle 909 will be out of contact with the placement rack 11. At this time, the second tension spring 15 that is pulled and deformed will pull the connecting rack 14 and the placement rack 11 to move, so that the frame plate is sleeved on the outer side of the circumference of the fin tube. The oblique opening on the baffle 909 will cause the frame plate to slowly sleeve on the fin tube, and the upward movement of the fin tube will drive the frame plate to separate from the placement rack 11. S7: Start the servo motor 603 and the laser welding machine, and drive the connecting plate 605 to rotate through the stepping motor, so that the laser welding head 606 performs circular welding, and welds the frame plate and the fin tube at the current position. The servo motor 603 will drive the threaded rod 602 to rotate, so that the connecting seat 604 slides on the guide rail 601, and then change the position of the laser welding head 606, so as to weld the remaining fin tubes and the frame plate in the same row. After welding one row, the positioning module 9 will drive the fin tube and the frame plate to move, change the longitudinal position of the fin tube and the frame plate, and then weld the fin tube and the frame plate in another row, so as to form a firm weld without manual welding; S8: After the fin tube and the frame plate are welded into a semi-finished product, the electric slide will drive the slide plate 501 to move to the semi-finished product, start the hydraulic cylinder 503, and the hydraulic cylinder 503 will drive the connecting plate 504 to move, so that the connecting plate 504 contacts the semi-finished product, and then start the motor 508, the motor 508 drives the bidirectional screw rod 507 to rotate, so that the two clamping frames 506 move towards each other to clamp the semi-finished product, at this time, adjust the position of the positioning module 9 to make the semi-finished product disengage from the positioning module 9, and use the electric slide to drive the slide plate 501 to disengage from the welding module 6, so that the positioning module 9 can be reset; S9: When the semi-finished product is brought to the top of the placement plate 10 by the transfer module 5, the semi-finished product is placed on the placement plate 10 by the hydraulic cylinder 503, and the clamping of the semi-finished product is released by the motor 508. Under the action of gravity, the semi-finished product will press the placement plate 10 to rotate, and make the placement plate 10 contact with the receiving tray 7 and the inner wall flush. The semi-finished product will slide onto the receiving tray 7 and be cushioned and prevented from collision by the sponge pad 8, so that the workers can take the semi-finished product for subsequent processing.

[0036] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0037] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A fin heat exchanger welding device, comprising a frame (1), characterized in that: A storage module (3) for storing fin tubes is provided at one end of the frame (1), a discharge module (2) for arranging and transferring the fin tubes is provided at the bottom of the storage module (3), a transfer module (5) for discharging semi-finished products after the fin tubes are fixedly connected to the frame is provided on one side of the storage module (3), and the transfer module (5) and the discharge module (2) are both connected to the frame (1) via an electric slide, a positioning module (9) for adjusting the position of the fin tubes and the frame is provided at the other end of the frame (1), a welding module (6) for fixing the fin tubes and the frame is provided above the positioning module (9), and pushing components for placing frame plates are provided on both sides of the frame (1).

2. The fin heat exchanger welding equipment according to claim 1, characterized in that: The material storage module (3) comprises two discharge racks (301), the two discharge racks (301) are fixedly connected to the bottom inner wall of the frame body (1), and the two discharge racks (301) are symmetrically distributed. The fin tubes are placed in a groove between the two discharge racks (301), and the two discharge racks (301) are provided with a limiting mechanism on the opposite sides to block the discharge of the fin tubes.

3. The fin heat exchanger welding equipment according to claim 2, characterized in that: The limiting mechanism comprises a first plug hole (304), the first plug hole (304) is provided on one side of the frame body (1), an L-shaped rod (302) is slidably connected in the first plug hole (304), one end of the L-shaped rod (302) in contact with the discharge module (2) is an inclined surface (309), and the other end of the L-shaped rod (302) is fixedly connected to a sliding rod (308), a second plug hole (305) is provided through one side of the two discharge racks (301), a shift rod (306) is inserted in the second plug hole (305), a sliding hole (307) is provided on one side of the shift rod (306), and the sliding rod (308) slides in the sliding hole (307), a first tension spring (303) is fixedly connected to the inner wall of one side of the L-shaped rod (302), and the other end of the first tension spring (303) is fixed to the discharge rack (301).

4. The fin heat exchanger welding equipment according to claim 1, characterized in that: The discharge module (2) comprises a slide seat (201), the slide seat (201) being arranged between the inner walls on both sides of the frame (1) via an electric slide, the top of the slide seat (201) being detachably connected to two symmetrically distributed support rods (202) via bolts, and the distance between the two support rods (202) being greater than the total length of the fins on the fin tube, and the tops of the two support rods (202) being provided with a plurality of evenly distributed limiting grooves (203).

5. The fin heat exchanger welding equipment according to claim 1, characterized in that: The transfer module (5) comprises a slide plate (501), the slide plate (501) is arranged between the inner walls on both sides of the frame (1) via an electric slide, a hydraulic cylinder (503) is fixed to the top of the slide plate (501) via bolts, a piston end of the hydraulic cylinder (503) passes through the slide plate (501) and is fixedly connected to a connecting plate (504), a guide frame (505) is fixedly connected to the bottom of the connecting plate (504), and a bidirectional screw rod is rotatably connected between the inner walls on both sides of the guide frame (505). (507), both ends of the bidirectional lead screw (507) are threadedly connected to a clamping frame (506), one side outer wall of the guide frame (505) is fixedly connected to a motor (508), and the output shaft of the motor (508) passes through the guide frame (505) and is fixed to the bidirectional lead screw (507), the top four corners of the connecting plate (504) are fixedly connected to a guide rod (502), and one end of the guide rod (502) passes through the slide plate (501) and is slidably connected to the slide plate (501).

6. The fin heat exchanger welding equipment according to claim 1, characterized in that: The positioning module (9) comprises an oil cylinder (901), the oil cylinder (901) is fixedly connected to the bottom inner wall of the frame (1), the piston end of the oil cylinder (901) is fixedly connected to the first slide (902), one end of the first slide (902) is fixedly connected to the fixing rod (903), one side of the fixing rod (903) is provided with a guide groove (904), the guide groove (904) is slidably connected to the second slide (906), one side of the second slide (906) is provided with a threaded hole, the threaded hole is threadedly connected to a fixing screw, the circumferential outer wall of the fixing screw is rotatably connected to a profile frame (905), and the profile frame (905) is connected to the fixing screw. The first slide (902) and the second slide (906) are in contact with each other with a fixed rod (903), one side of the first slide (902) and the second slide (906) are both detachably connected to two support plates (907) by bolts, both ends of one side of the first slide (902) are fixedly connected to baffles (909), one side of the baffle (909) is provided with a notch (908), a side of the baffle (909) in contact with the pushing component is provided with an oblique opening, and the oblique opening is connected to the notch (908), a limiting rod (910) is fixedly connected between the inner walls on both sides of the frame body (1), and the first slide (902) and the second slide (906) both slide on the circumferential outer wall of the limiting rod (910).

7. The fin heat exchanger welding equipment according to claim 1, characterized in that: The welding module (6) comprises a guide rail (601), the guide rail (601) being fixedly connected to the top inner wall of the frame body (1), the bottom of the guide rail (601) being slidably connected to a connecting seat (604), the bottom of the connecting seat (604) being fixedly connected to an annular frame (607), one side of the annular frame (607) being rotatably connected to a connecting disk (605), one side of the connecting disk (605) being provided with a laser welding head (606), a stepping motor being fixedly connected to the inner wall of one side of the annular frame (607) by bolts, and the output shaft of the stepping motor being fixed to the connecting disk (605), one side of the guide rail (601) being fixedly connected to a servo motor (603), the output shaft of the servo motor (603) passing through the guide rail (601) being fixedly connected to a threaded rod (602) by a coupling, and the threaded rod (602) being threadedly connected to the connecting seat (604).

8. The fin heat exchanger welding equipment according to claim 1, characterized in that: The pushing assembly comprises a fixing plate (4), the fixing plate (4) being fixedly connected to the bottom inner wall of the frame body (1), one side of the fixing plate (4) being provided with two sliding openings, a connecting frame (14) being slidably connected in the two sliding openings, one side of the connecting frame (14) being fixedly connected to a placing frame (11), a placing groove (12) being provided at the top of the placing frame (11), a plurality of evenly distributed arc-shaped elastic plates (13) being fixedly connected to the inner walls of both sides of the placing groove (12), one side of the fixing plate (4) being fixedly connected to two second tension springs (15), and the other end of the second tension spring (15) being fixed to the connecting frame (14).

9. The fin heat exchanger welding equipment according to claim 1, characterized in that: A placement plate (10) is rotatably connected between the inner walls on both sides of the frame (1) via a rotating shaft (16); one end of each of the two rotating shafts (16) passes through the frame (1) and is fixedly connected to a torsion spring (17); and the other end of the torsion spring (17) is fixed to the frame (1); a material receiving tray (7) is fixedly connected to an outer wall on one side of the frame (1); and a sponge pad (8) is fixedly connected to an inner wall on one side of the material receiving tray (7).

10. A welding method for a finned heat exchanger device, applicable to a finned heat exchanger welding device as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1: placing a plurality of fin tubes in a groove between two material discharging racks (301), and under the action of gravity, the fin tube at the bottom will contact the stop rod (306); S2: When the L-shaped rod (302) contacts the support rod (202), the support rod (202) squeezes the L-shaped rod (302) to move, thereby pulling the first tension spring (303) to deform and generate tension, and then pulling the shift rod (306) so that one end of the shift rod (306) enters the second plug hole (305), thereby breaking away from contact with the fin tube, and the fin tube falls into the limit groove (203), so that the fin tube is arranged; S3: The slide seat (201) is driven to move by the electric slide, and the other fin tubes fall into another limiting groove (203), thereby completing the arrangement of the fin tubes. When there is also a fin tube in the last limiting groove (203), the L-shaped rod (302) is disengaged from the support rod (202), and the first tension spring (303) that is pulled and deformed is reset, thereby driving the L-shaped rod (302) and the stop rod (306) to move, and then the stop rod (306) blocks the fin tube. When the electric slide drives the slide seat (2) and the fin tube to move subsequently, the fin tube will not slide off; S4: When the fin tube is transferred by the discharge module (2), the support plate (907) on the second slide (906) is inserted between the fin tube and the slide seat (201), and the oil cylinder (901) is started. The oil cylinder (901) drives the support plate (907) on the second slide (906) to move, so that the support plate (907) drives the fin tube to leave the limiting groove (203), and then the electric slide drives the slide seat (201) to reset, and at the same time, the oil cylinder (901) drives the first slide (902) to move to the second slide (906); S5: During the process of the slide seat (201) being reset, the support rod (202) will squeeze the inclined surface (309), causing the L-shaped rod (302) to move, thereby causing the slide rod (308) to slide in the slide hole (307). When the slide seat (201) is in the initial position, the shift rod (306) is pulled, causing one end of the shift rod (306) to enter the second plug hole (305), and the finned tube will fall into the limit groove (203) again, and a new round of arrangement and transportation will be carried out; S6: When two groups of fin tubes are formed, the oil cylinder (901) drives the fin tubes to move to the welding module (6). During this process, the baffle (909) is driven by the first slide (902) to move upward. When the placement rack (11) is located at the notch (908), the baffle (909) is out of contact with the placement rack (11). At this time, the second tension spring (15) that is pulled and deformed will pull the connecting rack (14) and the placement rack (11) to move, so that the frame plate is sleeved on the outer side of the circumference of the fin tube. The oblique opening on the baffle (909) will cause the frame plate to slowly sleeve on the fin tube, and the upward movement of the fin tube will drive the frame plate to separate from the placement rack (11); S7: Start the servo motor (603) and the laser welding machine, and drive the connecting plate (605) to rotate through the stepping motor, so that the laser welding head (606) performs circular welding, and welds the frame plate and the fin tube at the current position. The servo motor (603) drives the threaded rod (602) to rotate, so that the connecting seat (604) slides on the guide rail (601), thereby changing the position of the laser welding head (606), so as to weld the remaining fin tubes and the frame plate in the same row. After welding one row, the positioning module (9) drives the fin tube and the frame plate to move, changing the longitudinal position of the fin tube and the frame plate, and then welding the fin tube and the frame plate in another row, so as to form a firm weld, and no manual welding is required; S8: After the fin tube and the frame plate are welded into a semi-finished product, the electric slide will drive the slide plate (501) to move to the semi-finished product, and the hydraulic cylinder (503) will be started. The hydraulic cylinder (503) will drive the connecting plate (504) to move so that the connecting plate (504) contacts the semi-finished product, and then the motor (508) will be started. The motor (508) drives the bidirectional screw rod (507) to rotate, so that the two clamping frames (506) move towards each other to clamp the semi-finished product. At this time, the position of the positioning module (9) is adjusted so that the semi-finished product is out of contact with the positioning module (9), and the electric slide is used to drive the slide plate (501) to separate from the welding module (6) so that the positioning module (9) can be reset; S9: When the semi-finished product is brought to the top of the placement plate (10) by the transfer module (5), the semi-finished product is placed on the placement plate (10) by the hydraulic cylinder (503), and the semi-finished product is released by the motor (508). Under the action of gravity, the semi-finished product presses the placement plate (10) to rotate, and makes the placement plate (10) contact with the receiving tray (7) and the inner wall is flush. The semi-finished product slides onto the receiving tray (7) and is cushioned and prevented from collision by the sponge pad (8), so that the worker can pick up the semi-finished product for subsequent processing.

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