An assembly system and method for heat exchanger collector plates and heat exchanger tubes.

Abstract

This invention provides an assembly system and method for heat exchanger collector plates and heat exchanger tubes. The assembly system includes a main body, which is equipped with a loading mechanism, a unloading mechanism, a tube-inserting mechanism, and a first conveying mechanism. The collector plates are pre-set in a fixture to form a collector plate assembly, which is conveyed by the first conveying mechanism. The loading mechanism is used to transfer the inner cavity blank and fit it onto the collector plate assembly at a first coordinate. The tube-inserting mechanism is located at a second coordinate in the conveying direction of the first conveying mechanism and is used to install the heat exchanger tube through the collector plate assembly. The unloading mechanism is used to remove the inner cavity assembly formed by the tube insertion from the first conveying mechanism. This invention can automatically complete the assembly of the inner cavity blank, collector plates, and heat exchanger tubes, with a high degree of mechanization, automation, and assembly efficiency, reducing manual intervention and workload, and ensuring the stability of assembly quality.

Description

Technical Field

[0001] This invention relates to the field of heat exchanger assembly equipment technology, and in particular to an assembly system and method for heat exchanger collecting plates and heat exchange tubes. Background Technology

[0002] Currently, the assembly of the heat collection fins and copper tubes inside the heat exchanger of a water heater is done manually by hammering and tapping. This results in relatively high workload for the workers. Furthermore, the copper tubes are aligned manually when passing through the heat collection fins, which not only leads to low assembly efficiency but also results in inconsistent assembly quality due to varying levels of worker skill and focus. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide an assembly system and method for heat exchanger collector plates and heat exchange tubes, which replaces the above-mentioned manual assembly and solves the problems of high labor intensity, low assembly efficiency and unstable assembly quality caused by the current assembly of heat exchanger collector plates and copper tubes in the inner cavity of water heaters, which relies on manual hammering and tapping.

[0004] To solve the above-mentioned technical problems, the technical solution used in this invention is as follows:

[0005] The present invention discloses an assembly system for heat exchanger collecting plates and heat exchange tubes, used for assembling the inner cavity blank, collecting plates and heat exchange tubes of a heat exchanger, including a main body, the main body being provided with a feeding mechanism, a discharging mechanism, a tube threading mechanism and a first conveying mechanism, the collecting plates being pre-set in a fixture to form a collecting plate group, the collecting plate group being conveyed by the first conveying mechanism;

[0006] The feeding mechanism is used to transfer the inner cavity blank and to place the inner cavity blank onto the heat collection plate group located at the first coordinate in the conveying direction of the first conveying mechanism.

[0007] The tube-insertion mechanism is located at the second coordinate in the conveying direction of the first conveying mechanism, and is used to insert the heat exchange tube through the heat collection plate group conveyed from the first coordinate.

[0008] The feeding mechanism is used to remove the inner cavity assembly formed by the above-mentioned tube insertion from the first conveying mechanism.

[0009] Preferably, it also includes an auxiliary fixing mechanism, which is located at the first coordinate and is used to guide the inner cavity blank to be sleeved on the outside of the heat collection plate group.

[0010] More preferably, the auxiliary fixing mechanism includes a first telescopic cylinder and a second telescopic cylinder respectively connected to the main body;

[0011] The first telescopic cylinder has a first fixed seat at the end of its cylinder rod, and the first fixed seat has a first lifting cylinder. The first lifting cylinder has a first guide portion at the end of its cylinder rod.

[0012] The second telescopic cylinder has a second fixed seat at the end of its cylinder rod, and the second fixed seat has a second lifting cylinder. The second lifting cylinder has a second guide portion at the end of its cylinder rod.

[0013] The first guide portion and the second guide portion are respectively disposed on both sides of the first conveying mechanism and can respectively fit into both sides of the heat collection plate group at the first coordinate.

[0014] More preferably, both the first guide portion and the second guide portion include at least one guide block, and the inner side of the inner cavity blank is fitted into the heat collection plate assembly along the guide block.

[0015] Preferably, it further includes a second conveying mechanism, which is disposed on one side of the main body along the line connecting the first coordinate and the second coordinate;

[0016] The second conveying mechanism is used to convey the inner cavity blank and the inner cavity assembly; the loading mechanism obtains the inner cavity blank from the second conveying mechanism, and the unloading mechanism transfers the inner cavity assembly to the second conveying mechanism.

[0017] More preferably, the loading mechanism and / or the unloading mechanism includes a robot arm, a servo mechanism, a vertical track, and a horizontal track. The robot arm is slidably connected to the vertical track via the servo mechanism, and the vertical track is slidably connected to the horizontal track via the servo mechanism.

[0018] Preferably, the tube-passing mechanism includes a tube-pushing mechanism and a tube-conduit mechanism respectively connected to the main body, and the tube-pushing mechanism and the tube-conduit mechanism are respectively disposed on both sides of the second coordinate of the first conveying mechanism;

[0019] The tube pushing mechanism includes a tube pushing cylinder and a tube seat. The tube seat is used to place the heat exchange tube, and the tube seat is connected to the cylinder rod of the tube pushing cylinder.

[0020] The conduit mechanism includes a push rod cylinder and a guide rod corresponding to the heat exchange tube. One end of the guide rod is connected to the end of the cylinder rod of the push rod cylinder, and the other end is a pointed cone shape and faces the corresponding heat exchange tube. The push rod cylinder pushes the guide rod through the heat collection plate group and inserts it into the corresponding heat exchange tube, and then together with the tube pusher cylinder, drives the heat exchange tube through the heat collection plate group.

[0021] More preferably, the pipe-insertion mechanism further includes a pipe-transfer mechanism, the bottom end of which is connected to the pipe seat for conveying the heat exchange pipe to the pipe seat.

[0022] Preferably, the main body is further provided with a protective cover, which surrounds the feeding mechanism, the unloading mechanism, the tube-threading mechanism and the first conveying mechanism within the main body.

[0023] Another object of the present invention is to provide a method for assembling heat exchanger collector plates and heat exchanger tubes, based on the above-described assembly system for heat exchanger collector plates and heat exchanger tubes, comprising the following steps:

[0024] S1, the heat collection plate group is placed on the first conveying mechanism, and the corresponding heat exchange tube is placed on the tube insertion mechanism;

[0025] S2, start the first conveying mechanism and the feeding mechanism, run the first conveying mechanism to convey the heat collection plate group to the first coordinate, run the feeding mechanism to fix the inner cavity blank and put the inner cavity blank on the heat collection plate group located at the first coordinate;

[0026] S3, operate the first conveying mechanism to convey the heat collection plate group at the first coordinate to the second coordinate;

[0027] S4, activate the tube-passing mechanism to pass the heat exchange tube on it through the heat collection plate group located at the second coordinate to obtain the inner cavity assembly;

[0028] S5, start the unloading mechanism, use the unloading mechanism to move the inner cavity assembly out of the first conveying mechanism, and proceed to step S1.

[0029] Compared with the prior art, the advantages of the assembly system of heat exchanger collector plates and heat exchange tubes described in this invention are mainly reflected in:

[0030] The assembly system of this invention includes a feeding mechanism, a discharging mechanism, a tube-inserting mechanism, and a first conveying mechanism. The heat-collecting fin assembly is placed on the first conveying mechanism, and the heat exchange tube is placed on the tube-inserting mechanism. The feeding mechanism places the inner cavity blank onto the heat-collecting fin assembly located at the first coordinate, and the tube-inserting mechanism inserts the heat exchange tube through it into the assembly located at the second coordinate. place The heat collection plate assembly can then automatically complete the assembly of the inner cavity blank, heat collection plate and heat exchange tube. The assembly process is highly mechanized and automated, which greatly reduces the degree of manual assembly and workload, significantly improves assembly efficiency, and ensures the stability of assembly quality. It can avoid the problems of high labor intensity, low assembly efficiency and unstable assembly quality caused by relying on manual assembly by hammering and tapping.

[0031] Compared with the prior art, the advantages of the assembly method of heat exchanger collecting plates and heat exchange tubes described in this invention are mainly reflected in:

[0032] The method of the present invention is based on the above-mentioned assembly system of heat exchanger collector plates and heat exchange tubes, which has low manual intervention and labor intensity, high degree of automation, high assembly efficiency and quality, and stable assembly quality. Attached Figure Description

[0033] The above and other objects, features, and advantages of the invention will become clearer through a more detailed description of the preferred embodiments illustrated in the accompanying drawings. The same reference numerals denote the same parts throughout the drawings, and the drawings are not intentionally drawn to scale with actual dimensions; the focus is on illustrating the gist of the invention.

[0034] Figure 1 The present invention provides a structure for an assembly system of heat exchanger collector plates and heat exchange tubes. Figure 1 ;

[0035] Figure 2 A partial structure of an assembly system for heat exchanger collector plates and heat exchange tubes provided in an embodiment of the present invention. Figure 1 ;

[0036] Figure 3 A partial structure of an assembly system for heat exchanger collector plates and heat exchange tubes provided in an embodiment of the present invention. Figure 2 ;

[0037] Figure 4 This is a schematic diagram of the structure of the auxiliary fixing mechanism and the heat collection plate assembly provided in an embodiment of the present invention;

[0038] Figure 5 A schematic diagram of the assembly steps of the inner cavity assembly provided in an embodiment of the present invention; Attached image description:

[0040] Feeding mechanism 100, robotic arm 101, vertical track 102, horizontal track 103;

[0041] 200 feeding mechanism

[0042] Pipe threading mechanism 300, pipe pushing mechanism 310, pipe pushing cylinder 311, pipe seat 312, conduit mechanism 320, push rod cylinder 321, guide rod 322, pipe delivery mechanism 330;

[0043] First transmission mechanism 400;

[0044] Main body 500, protective cover 501;

[0045] Second transmission mechanism 600;

[0046] Auxiliary fixing mechanism 700, first telescopic cylinder 701, second telescopic cylinder 702, first fixing seat 703, second fixing seat 704, first lifting cylinder 705, second lifting cylinder 706, first guide part 707, second guide part 708, guide block 709.

[0047] 1. Inner cavity blank, 2. Heat exchange tube, 3. Heat collection plate assembly, 4. Fixture, 5. Heat collection plate, 6. Inner cavity assembly. Detailed Implementation

[0048] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention. In this embodiment, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0049] It should be noted that when one element is considered to be "connected" to another element, it can be directly connected to and integrated with the other element, or there may be an intervening element present. The terms "mounted," "one end," "the other end," and similar expressions used in this invention are for illustrative purposes only.

[0050] This embodiment provides an assembly system for heat exchanger collecting plates and heat exchange tubes, used to assemble the inner cavity blank 1, collecting plates 5, and heat exchange tubes 2 of the heat exchanger, such as... Figures 1 to 3 As shown, the assembly includes a main body 500, which is equipped with a feeding mechanism 100, a discharging mechanism 200, a pipe-inserting mechanism 300, and a first conveying mechanism 400. The heat collection plates are pre-set in the fixture 4 to form a heat collection plate group 3, which is conveyed by the first conveying mechanism 400. It should be noted that a special fixture 4 can be designed to match the model of the heat collection plate 5, thereby improving the neatness of the heat collection plate group 3 and facilitating the smooth progress of subsequent assembly.

[0051] The feeding mechanism 100 is used to transfer the inner cavity blank 1 and put the inner cavity blank 1 onto the heat collection plate group 3 located at the first coordinate in the conveying direction of the first conveying mechanism 400.

[0052] The tube-insertion mechanism 300 is located at the second coordinate in the conveying direction of the first conveying mechanism 400, and is used to insert the heat exchange tube 2 through and install it in the heat collection plate group 3 conveyed from the first coordinate.

[0053] The unloading mechanism 200 is used to move the inner cavity assembly 6, which is formed by the above-mentioned tube insertion, out of the first conveying mechanism 400. It should be noted that both the inner cavity assembly 6 and the heat collection plate group 3 are provided with through holes through which the heat exchange tube 2 can pass. In this embodiment, after the inner cavity assembly 6 is sleeved on the outside of the heat collection plate group 3, the corresponding through holes of the two are coaxial. After the heat exchange tube 2 passes through the inner cavity assembly 6 and the heat collection plate group 3 along the through holes, the assembly can be completed to obtain the inner cavity assembly 6.

[0054] The assembly system in this embodiment is equipped with a feeding mechanism 100, a discharging mechanism 200, a tube-inserting mechanism 300, and a first conveying mechanism 400. The heat collection plate group 3 is placed on the first conveying mechanism 400, and the heat exchange tube 2 is placed on the tube-inserting mechanism 300. The inner cavity blank 1 is sleeved on the heat collection plate group 3 located at the first coordinate by the feeding mechanism 100, and the heat exchange tube 2 is inserted through the tube-inserting mechanism 300 into the heat collection plate group 3 located at the second coordinate by the tube-inserting mechanism 300. Thus, the assembly of the inner cavity blank 1, the heat collection plate 5, and the heat exchange tube 2 can be automatically completed. The assembly process is highly mechanized and automated, which greatly reduces the degree of manual assembly participation and workload, greatly improves assembly efficiency, and ensures the stability of assembly quality. It can avoid the problems of high labor intensity, low assembly efficiency, and unstable assembly quality caused by relying on manual assembly by hammering and tapping.

[0055] Specifically, the unloading mechanism 200 can be set at the third coordinate in the conveying direction of the first conveying mechanism 400. The first, second, and third coordinates are arranged in sequence, and the distance between the first and second coordinates and between the second and third coordinates corresponds to a workstation distance. During the assembly process, the first conveying mechanism 400 can be precisely controlled to move from the first coordinate to the second coordinate and from the second coordinate to the third coordinate to ensure the accuracy of positioning and ensure smooth assembly.

[0056] In a preferred embodiment, such as Figure 1 As shown, it also includes a second conveying mechanism 600, which is arranged on one side of the main body 500 along the line connecting the first coordinate and the second coordinate. The second conveying mechanism 600 is used to convey the inner cavity blank 1 and the inner cavity assembly 6. The loading mechanism 100 obtains the inner cavity blank 1 from the second conveying mechanism 600, and the unloading mechanism 200 transfers the inner cavity assembly 6 to the second conveying mechanism 600. By utilizing the conveying capacity of the second conveying mechanism 600, not only can the automation level of the assembly system be improved, but also a lot of manpower can be saved during the operation of the assembly system.

[0057] Furthermore, such as Figure 2 and Figure 3As shown, the loading mechanism 100 and / or unloading mechanism 200 include a robotic arm 101, a servo mechanism, a vertical track 102, and a horizontal track 103. The robotic arm 101 is slidably connected to the vertical track 102 via the servo mechanism, and the vertical track 102 is slidably connected to the horizontal track 103 via the servo mechanism. In this embodiment, the vertical track 102 is vertically arranged, and the horizontal track 103 is horizontally arranged. The horizontal track 103 spans the first conveying mechanism 400 and the second conveying mechanism 600, and is controlled by the servo mechanism. The robotic arm 101 slides down the vertical track 102 to the top of the second conveying mechanism 600 and extends into the inner cavity blank 1 directly below. Then, the robotic arm 101 is controlled to open and press against the inner wall of the inner cavity blank 1. Next, the robotic arm 101 is controlled by the servo mechanism to slide up the vertical track 102 and then slide up the horizontal track 103 to the top of the heat collection plate group 3 at the first coordinate of the first conveying mechanism 400. Finally, the robotic arm 101 is controlled to slide down with the inner cavity blank 1 to fit on the outside of the heat collection plate group 3.

[0058] In practical applications, there are usually dozens of heat collection plates. Even slight misalignment can affect the assembly of the inner cavity blank 1 into the heat collection plate assembly 3, causing misalignment, jamming, and resulting in the heat collection plate assembly 3 becoming loose. To ensure the smooth insertion of the inner cavity blank 1 into the heat collection plate assembly 3 during this assembly process, in a preferred embodiment, as follows... Figure 4 As shown, it also includes an auxiliary fixing mechanism 700, which is located at the first coordinate and is used to guide the inner cavity blank 1 to be sleeved on the outside of the heat collection plate group 3.

[0059] Specifically, the auxiliary fixing mechanism 700 includes a first telescopic cylinder 701 and a second telescopic cylinder 702, which are respectively connected to the main body 500. The first telescopic cylinder 701 and the second telescopic cylinder 702 are respectively disposed on both sides of the first conveying mechanism 400. The cylinder rod end of the first telescopic cylinder 701 is provided with a first fixing seat 703, the first fixing seat 703 is provided with a first lifting cylinder 705, and the cylinder rod end of the first lifting cylinder 705 is provided with a first guide part 707. The cylinder rod end of the second telescopic cylinder 702 is provided with a second fixing seat 704, the second fixing seat 704 is provided with a second lifting cylinder 706, and the cylinder rod end of the second lifting cylinder 706 is provided with a second guide part 708. The first guide part 707 and the second guide part 708 are respectively disposed on both sides of the first conveying mechanism 400 and can respectively fit against both sides of the heat collection plate group 3 at the first coordinate. After the heat collector assembly 3 is conveyed to the first coordinate position by the first conveying mechanism 400, the first telescopic cylinder 701 and the second telescopic cylinder 702 respectively bring the first guide portion 707 and the second guide portion 708 close to and fit against both sides of the heat collector assembly 3. After the inner cavity blank 1 is fitted, the first lifting cylinder 705 and the second lifting cylinder 706 respectively remove the first guide portion 707 and the second guide portion 708 from the inner cavity blank 1. In a specific embodiment, the first guide portion 707 and the second guide portion 708 each include at least one guide block 709, and the inner side of the inner cavity blank 1 is fitted into the heat collector assembly 3 along the guide block 709. It should be noted that the number and specific structural form of the guide blocks 709 can be adaptively designed according to the structure of the inner cavity blank 1, such as... Figure 1 In the embodiment shown, the inner cavity blank 1 is square-shaped, and the guide block 709 is a slanted pointed plate from top to bottom. The number of guide blocks 709 in the first guide part 707 and the second guide part 708 is set to two according to the number of corners of the inner cavity blank 1. Alternatively, the first guide part 707 and the second guide part 708 can be set to only two diagonally opposite guide blocks 709.

[0060] In another preferred embodiment, the tube insertion mechanism 300 includes a tube pushing mechanism 310 and a conduit mechanism 320 respectively connected to the main body 500, and the tube pushing mechanism 310 and the conduit mechanism 320 are respectively disposed on both sides of the second coordinate of the first conveying mechanism 400.

[0061] The tube pushing mechanism 310 includes a tube pushing cylinder 311 and a tube seat 312. The tube seat 312 is used to place the heat exchange tube 2. In this embodiment, the heat exchange tube 2 is a U-shaped tube. The tube seat 312 is connected to the cylinder rod of the tube pushing cylinder 311.

[0062] The conduit mechanism 320 includes a push rod cylinder 321 and a guide rod 322 corresponding to the heat exchange tube 2. One end of the guide rod 322 is connected to the end of the cylinder rod of the push rod cylinder 321, and the other end is a pointed cone and faces the corresponding heat exchange tube 2. The push rod cylinder 321 pushes the guide rod 322 through the heat collection plate group 3 and inserts it into the corresponding heat exchange tube 2, and then together with the push tube cylinder 311, it drives the heat exchange tube 2 through the heat collection plate group 3.

[0063] In this embodiment, during the tube-through assembly, the guide rod 322 can be first passed through the embedded blank and the heat collection plate group 3 by the push rod cylinder 321, and then inserted into the corresponding heat exchange tube 2, so that the guide rod 322 is connected to the heat exchange tube 2. In this way, under the guidance of the guide rod 322, it can be ensured that the heat exchange tube 2 can be smoothly passed through the embedded blank and the heat collection plate group 3 under the action of the tube-pushing cylinder 311.

[0064] Furthermore, the pipe threading mechanism 300 also includes a pipe conveying mechanism 330, the bottom end of which is connected to the pipe seat 312 for conveying the heat exchange tube 2 to the pipe seat 312, thereby further improving the automation level of the assembly system.

[0065] In a preferred embodiment, the main body 500 is further provided with a protective cover 501. The protective cover 501 surrounds the feeding mechanism 100, the unloading mechanism 200, the pipe threading mechanism 300 and the first conveying mechanism 400 within the main body 500, and plays a role in safety protection, dust prevention and noise reduction. The protective cover 501 can be made of transparent material, which makes it convenient for staff to monitor the operating status.

[0066] Based on the above-described assembly system for heat exchanger collector plates and heat exchanger tubes, a method for assembling heat exchanger collector plates and heat exchanger tubes is also provided, comprising the following steps:

[0067] S1, heat collection plate group 3 is placed on the first conveying mechanism 400, and corresponding heat exchange tube 2 is placed on the tube insertion mechanism 300;

[0068] S2, start the first conveying mechanism 400 and the feeding mechanism 100. The first conveying mechanism 400 transports the heat collection plate group 3 to the first coordinate position. The feeding mechanism 100 fixes the inner cavity blank 1 and places the inner cavity blank 1 onto the heat collection plate group 3 located at the first coordinate position. The installation action is as follows: Figure 5 Step ① is shown;

[0069] S3, the first conveyor mechanism 400 is activated to convey the heat collection plate group 3 at the first coordinate to the second coordinate;

[0070] S4, activate the tube-insertion mechanism 300 to insert the heat exchange tube 2 through the heat collector assembly 3 located at the second coordinate, the installation action is as follows: Figure 5 Step ② as shown yields the following result: Figure 5 The internal cavity assembly 6 is shown;

[0071] S5, start the unloading mechanism 200, use the unloading mechanism 200 to move the inner cavity component 6 out of the first conveying mechanism 400, and proceed to step S1.

[0072] The method of this invention is based on an assembly system for heat exchanger collectors and heat exchange tubes, as described above. It features low manual intervention and workload, high automation, high assembly efficiency and quality, and stable assembly quality. Preliminary testing shows that the production cycle time for the assembly process using manual hammering is approximately 25 seconds per piece. Using the method of this invention, the production cycle time can be increased to approximately 10 seconds per piece, significantly improving assembly efficiency.

[0073] In this specification, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0074] In the description of this specification, the references to terms such as "preferred embodiment," "another embodiment," "other embodiment," or "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0075] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. An assembly system for heat exchanger collecting fins and heat exchange tubes, used to assemble the inner cavity blank, collecting fins, and heat exchange tubes of a heat exchanger, characterized in that: The main body includes a feeding mechanism, a discharging mechanism, a pipe-inserting mechanism, and a first conveying mechanism. The heat collection plates are pre-set in the fixture to form a heat collection plate group, and the heat collection plate group is conveyed through the first conveying mechanism. The feeding mechanism is used to transfer the inner cavity blank and to place the inner cavity blank onto the heat collection plate group located at the first coordinate in the conveying direction of the first conveying mechanism. The tube-insertion mechanism is located at the second coordinate in the conveying direction of the first conveying mechanism, and is used to insert the heat exchange tube through the heat collection plate group conveyed from the first coordinate. The feeding mechanism is used to remove the inner cavity assembly formed by the tube insertion from the first conveying mechanism; It also includes an auxiliary fixing mechanism, which is located at the first coordinate and is used to guide the inner cavity blank to be fitted onto the outside of the heat collection plate assembly. The auxiliary fixing mechanism includes a first telescopic cylinder and a second telescopic cylinder respectively connected to the main body. The first telescopic cylinder has a first fixing seat at the end of its cylinder rod, and the first fixing seat has a first lifting cylinder. The first lifting cylinder has a first guide portion at the end of its cylinder rod. The second telescopic cylinder has a second fixing seat at the end of its cylinder rod, and the second fixing seat has a second lifting cylinder. The second lifting cylinder has a second guide portion at the end of its cylinder rod. The first guide portion and the second guide portion are respectively located on both sides of the first conveying mechanism and can respectively fit against both sides of the heat collection plate assembly at the first coordinate. The first guide portion and the second guide portion each include at least one guide block, and the inner side of the inner cavity blank is fitted into the heat collection plate assembly along the guide block. The tube-passing mechanism includes a tube-pushing mechanism and a tube-conducting mechanism, both connected to the main body. The tube-pushing mechanism and the tube-conducting mechanism are respectively located on both sides of the second coordinate position of the first conveying mechanism. The tube-pushing mechanism includes a tube-pushing cylinder and a tube seat. The tube seat is used to place the heat exchange tube, and the tube seat is connected to the cylinder rod of the tube-pushing cylinder. The tube-conducting mechanism includes a push rod cylinder and a guide rod corresponding to the heat exchange tube. One end of the guide rod is connected to the end of the cylinder rod of the push rod cylinder, and the other end is a pointed cone shaped and faces the corresponding heat exchange tube. The push rod cylinder pushes the guide rod through the heat collection plate assembly and inserts it into the corresponding heat exchange tube, and then, together with the tube-pushing cylinder, drives the heat exchange tube through the heat collection plate assembly. The pipe-insertion mechanism also includes a pipe-transfer mechanism, the bottom end of which is connected to the pipe seat for conveying the heat exchange tube to the pipe seat.

2. The assembly system according to claim 1, characterized in that: It also includes a second conveying mechanism, which is disposed on one side of the main body along the line connecting the first coordinate and the second coordinate; The second conveying mechanism is used to convey the inner cavity blank and the inner cavity assembly; the loading mechanism obtains the inner cavity blank from the second conveying mechanism, and the unloading mechanism transfers the inner cavity assembly to the second conveying mechanism.

3. The assembly system according to claim 2, characterized in that: The loading mechanism and / or the unloading mechanism include a robotic arm, a servo mechanism, a vertical track, and a horizontal track. The robotic arm is slidably connected to the vertical track via the servo mechanism, and the vertical track is slidably connected to the horizontal track via the servo mechanism.

4. The assembly system according to claim 1, characterized in that: The main body is also provided with a protective cover, which surrounds the feeding mechanism, unloading mechanism, tube threading mechanism and the first conveying mechanism within the main body.

5. A method for assembling heat exchanger collecting fins and heat exchanger tubes, characterized in that: An assembly system for a heat exchanger collector plate and heat exchange tube according to any one of claims 1 to 4, comprising the steps of: S1, the heat collection plate group is placed on the first conveying mechanism, and the corresponding heat exchange tube is placed on the tube insertion mechanism; S2, start the first conveying mechanism and the feeding mechanism, run the first conveying mechanism to convey the heat collection plate group to the first coordinate, run the feeding mechanism to fix the inner cavity blank and put the inner cavity blank on the heat collection plate group located at the first coordinate; S3, operate the first conveying mechanism to convey the heat collection plate group at the first coordinate to the second coordinate; S4, activate the tube-passing mechanism to pass the heat exchange tube on it through the heat collection plate group located at the second coordinate to obtain the inner cavity assembly; S5, start the unloading mechanism, use the unloading mechanism to move the inner cavity assembly out of the first conveying mechanism, and proceed to step S1.

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