Rapid assembly mechanism for flat tubes and grouped fins of heat exchangers

Abstract

The present invention discloses a rapid assembly mechanism for flat tubes and grouped fins of a heat exchanger, and specifically relates to the technical field of heat exchanger assembly. The present invention comprises two groups of support frames and a mobile tooling arranged therebetween, an assembly table is arranged below the mobile tooling, and an assembly mechanism for assembling the flat tubes and the fins is arranged on the outer side of the assembly table; the present invention controls the gap between adjacent flat tubes, that is, before assembly, controls the spacing between the two flat tubes to be greater than the width of the soft fins, and during assembly, the flat tubes and the fins are squeezed and fitted by two clamping plates, and the soft fins are quickly assembled, and the protection plate is limited to prevent the soft fins from being exposed outside the gap between the flat tubes, thereby reducing subsequent operations, and simultaneously limiting and fixing the four sides of the fins and the flat tubes after assembly, thereby ensuring the alignment of the sides and the tightness of the fit between the two, facilitating subsequent assembly transfer, and jointly improving the assembly efficiency of the flat tubes and the fins.

Description

Technical Field

[0001] The invention relates to the technical field of heat exchanger assembly, and more specifically to a rapid assembly mechanism for flat tubes and grouped fins of a heat exchanger. Background Art

[0002] The assembly of heat exchanger (condenser) flat tubes and grouped fins is an important part of the heat exchanger manufacturing process. It refers to the process of combining the pre-arranged flat tubes and grouped fins according to certain process requirements to form a heat exchanger (condenser) core with high-efficiency heat exchange performance.

[0003] In the assembly process, the spacing between the arranged flat tubes is fixed, such as the patent document with publication number CN117862351B. In the device, the bent flat tubes are initially shaped by a forming frame, and then the fins are dropped into the gaps between the bent flat tubes to complete the assembly.

[0004] However, in the prior art, since the fins in the condenser are soft, they may be deformed or bent during the assembly process, resulting in partial exposure of the fins. Later, the exposed fins need to be squeezed into the gaps of the flat tubes by pressing or correcting, and the gaps between the flat tubes cannot be regulated, that is, before assembly, the gaps between the flat tubes are controlled to be larger than the width of the fins. During assembly, the flat tubes and the fins are squeezed and fitted to prevent the soft fins from being exposed outside the gaps of the flat tubes during loading, thereby reducing subsequent operations and improving assembly efficiency. At the same time, it is also impossible to synchronously limit and fix the four sides of the fitted flat tubes and fins to ensure the alignment of the sides and the tightness of the fit of the two, so as to facilitate subsequent processing of the two.

[0005] In view of the above technical defects, a solution is now provided. Summary of the invention

[0006] The present invention provides a rapid assembly mechanism for flat tubes and grouped fins of a heat exchanger to overcome the above-mentioned defects of the prior art.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a rapid assembly mechanism for flat tubes and grouped fins of a heat exchanger, comprising a rapid assembly mechanism for flat tubes and grouped fins of a heat exchanger, comprising two groups of support frames and a mobile tooling arranged therebetween, an assembly table is arranged below the mobile tooling, an assembly mechanism for assembling flat tubes and fins is arranged outside the assembly table; the assembly mechanism comprises a second cylinder fixedly connected to the bottom of the assembly table, a connecting plate is fixedly arranged on the top of the second cylinder;

[0008] A transmission assembly is provided on the top of the connecting plate, and the transmission assembly includes a fixed tooth plate and an L-shaped tooth plate respectively fixedly connected to the two side walls of the assembly table, the outer walls of the fixed tooth plate and the L-shaped tooth plate are meshed and connected with gears, a connecting shaft is provided in the middle of the gear, a plurality of threads are equidistantly provided on the outer wall of the connecting shaft, a moving block is connected to the outer side of the thread, and a movable U-shaped block is connected to the top of the moving block;

[0009] A positioning block is rotatably provided at the end of the connecting shaft away from the gear, and a positioning U-shaped block is fixedly provided on the top of the positioning block;

[0010] A clamping assembly and an alignment assembly are arranged on the outer side above the second cylinder;

[0011] An assembly plate is connected to the bottom of the movable tooling through a cylinder 1, and an auxiliary mechanism for assisting the assembly of the flat tubes and fins is arranged at the bottom of the assembly plate.

[0012] Furthermore, a limiting plate is slidably provided at the bottom of several of the moving blocks, and the bottom of the positioning block extends into the limiting plate. A U-shaped rod is fixedly connected to the bottom of the limiting plate, and the end of the U-shaped rod is rotatably connected to the end of the connecting shaft, and the bottoms of the two U-shaped rods are connected to the connecting plate.

[0013] Furthermore, the clamping assembly includes four limit blocks fixedly connected to the side walls of the second output end of the cylinder, the limit blocks are provided with limit inclined grooves inside, and fixed plates are fixedly provided on both sides of the bottom of the assembly table.

[0014] Furthermore, a thrust spring 1 is provided on one side of the fixed plate, a bottom plate is provided at the end of the thrust spring 1, a connecting rod is fixedly provided on one side of the bottom plate, a roller 1 is rotatably provided at the end of the connecting rod, and the roller 1 is transmission-coordinated with its corresponding limiting bevel groove.

[0015] Furthermore, two sets of slide rails are provided above the assembly table, and clamping plates are provided on both sides of the top of the assembly table, and the bottom of the clamping plate passes through the slide rails and is fixedly connected to the bottom plate.

[0016] Furthermore, the alignment component includes two rollers 2, and the rollers 2 are in transmission cooperation with the other two limiting inclined grooves. An L-plate is arranged on the outer side of the rollers 2, and an alignment plate is fixedly connected to the top of the L-plate.

[0017] Furthermore, both sides of the alignment plate are fixedly connected to a limiting sleeve, a limiting column is slidably arranged inside the limiting sleeve, the end of the limiting column is fixedly connected to the assembly table, and a tension spring is arranged on the outer wall of the limiting column between the limiting sleeve and the assembly table.

[0018] Furthermore, the auxiliary mechanism includes a plurality of placement cavities opened inside the assembly plate, and the inner walls of the assembly plate on both sides of the placement cavity are provided with sliding grooves, thrust spring 2 is arranged in the sliding groove, and a slider is arranged at the bottom of the thrust spring 2, and the slider is slidably matched with the sliding groove.

[0019] Furthermore, a limiting groove is provided on the side wall of the slider, a thrust spring three is arranged in the limiting groove, a blocking block is arranged at the end of the thrust spring three, and a protective plate is fixedly arranged on the bottom side wall of the slider.

[0020] Technical effects and advantages of the present invention:

[0021] 1. The present invention controls the cylinder to extend downward, so that the bottom of the protective plate contacts the assembly table, and the protective plate presses the slider upward, so that the blocking block moves into the limiting groove, and a plurality of fins fall synchronously into the gap between two adjacent movable U-shaped blocks, including the gap between the positioning U-shaped block and its adjacent movable U-shaped block. During the falling process, the protective plate limits the downward movement path of the fins, ensuring that the fins fall into the designated area during the loading process, and avoiding the misalignment of the soft fins during the loading process;

[0022] 2. The present invention controls the second cylinder to contract, so that the gear first drives the connecting shaft to rotate, controls a number of equally spaced movable U-shaped blocks to synchronously approach the positioning U-shaped block, and at the same time, the plurality of movable U-shaped blocks move downward while approaching the positioning U-shaped block, so that the flat tube close to the positioning U-shaped block approaches and fits the fin on one side thereof, the second cylinder continues to contract, the movable U-shaped block moves to the bottom of the assembly table, and the two clamping plates are driven to synchronously approach by the thrust spring 1, so that the flat tube and the fin are pressed and fitted, and the gap between adjacent flat tubes is controlled, that is, the gap between the two flat tubes is controlled to be larger than the width of the soft fin before assembly, and the flat tube and the fin are pressed and fitted by the two clamping plates during assembly, so that the soft fin is quickly assembled, and the protective plate is used to limit the soft fin to prevent it from being exposed outside the gap between the flat tubes, thereby reducing subsequent operations and improving assembly efficiency;

[0023] 3. In the present invention, during the process of the two clamping plates being brought together synchronously, the tension spring pulls the alignment plate inward synchronously, so that the two alignment plates are brought together synchronously, and the sides of the flat tube and the fin are synchronously aligned, so that the four sides of the fin and the flat tube are limited and fixed after assembly, ensuring the alignment of the sides and the tightness of the fit between the two, which is convenient for subsequent assembly and transfer. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a stereoscopic diagram of the overall structure of the present invention.

[0025] Figure 2 It is a front view of the assembly mechanism and the auxiliary mechanism in the present invention.

[0026] Figure 3 It is a top view of the assembly mechanism in the present invention.

[0027] Figure 4 It is a three-dimensional diagram of the transmission assembly in the present invention.

[0028] Figure 5 It is a three-dimensional diagram of the clamping assembly in the present invention.

[0029] Figure 6 It is a front view of the limiting chute in the present invention.

[0030] Figure 7 for Figure 5 Schematic diagram of the enlarged structure of area A in the middle.

[0031] Figure 8 It is a top view of the assembly table in the present invention.

[0032] Fig. 9 It is a front view of the auxiliary mechanism in the present invention.

[0033] The accompanying drawings are marked as follows: 1, support frame; 2, mobile tooling; 3, cylinder 1; 4, assembly plate; 5, assembly table; 6, assembly mechanism; 61, cylinder 2; 62, connecting plate; 63, clamping assembly; 631, limit block; 632, connecting rod; 633, limit inclined groove; 634, bottom plate; 635, thrust spring 1; 636, fixed plate; 637, slide rail; 638, clamping plate; 64, transmission assembly; 641, fixed tooth plate; 642, tooth Wheel; 643, connecting shaft; 644, limiting plate; 645, moving block; 646, movable U-shaped block; 647, thread; 648, U-shaped rod; 649, L-shaped tooth plate; 65, alignment component; 651, limiting column; 652, limiting sleeve; 653, alignment plate; 7, auxiliary mechanism; 71, placement cavity; 72, slide groove; 73, slider; 74, limiting groove; 75, blocking block; 76, protective plate; 8, positioning block; 9, positioning U-shaped block. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Embodiment 1: Figure 1-9As shown, the fast assembly mechanism for flat tubes and grouped fins of a heat exchanger proposed in this embodiment includes two groups of support frames 1 and a mobile tooling 2 arranged therebetween, an assembly table 5 is arranged below the mobile tooling 2, and an assembly mechanism 6 for assembling flat tubes and fins is arranged outside the assembly table 5;

[0036] like Figure 1-8 As shown, the assembly mechanism 6 includes a cylinder 2 61 fixedly connected to the bottom of the assembly table 5, a connecting plate 62 is fixedly provided on the top of the cylinder 2 61, a transmission assembly 64 is provided on the top of the connecting plate 62, and the transmission assembly 64 includes a fixed tooth plate 641 and an L-shaped tooth plate 649 respectively fixedly connected to the two side walls of the assembly table 5, the outer walls of the fixed tooth plate 641 and the L-shaped tooth plate 649 are meshed and connected with a gear 642, a connecting shaft 643 is fixedly provided at the center of the gear 642, a plurality of threads 647 are equidistantly provided on the outer wall of the connecting shaft 643, a moving block 645 is connected to the outer side of the thread 647, and a limiting plate 644 is slidably provided at the bottom of the plurality of moving blocks 645, a U-shaped rod 648 is fixedly connected to the bottom of the limiting plate 644, the end of the U-shaped rod 648 is rotatably connected to the end of the connecting shaft 643 through a bearing, a movable U-shaped block 646 is fixedly connected to the top of the moving block 645, and the bottoms of the two U-shaped rods 648 are both connected to the connecting plate 62;

[0037] It should be supplemented here that a positioning block 8 is rotatably provided at the end of the connecting shaft 643 away from the gear 642 through a bearing, the bottom of the positioning block 8 extends into the limiting plate 644, and a positioning U-shaped block 9 is fixedly provided on the top of the positioning block 8;

[0038] like Figure 1-2 , 5-6, and 8, a clamping assembly 63 and an alignment assembly 65 are arranged on the outer side above the cylinder 2 61, the clamping assembly 63 includes four limit blocks 631 fixedly connected to the side wall of the output end of the cylinder 2 61, the four limit blocks 631 are evenly distributed on the outer side of the cylinder 2 61, and a limit inclined groove 633 is arranged inside the limit block 631. Fixed plates 636 are fixedly arranged on both sides of the bottom of the assembly table 5, and a thrust spring 1 635 is arranged on one side of the fixed plate 636. The thrust spring A bottom plate 634 is provided at the end of the spring 1 635, a connecting rod 632 is fixedly provided on one side of the bottom plate 634, a roller 1 is rotatably provided at the end of the connecting rod 632, and the roller 1 is transmission-coordinated with the corresponding limiting inclined groove 633, two groups of slide rails 637 are symmetrically provided above the assembly platform 5, each group of slide rails 637 includes two slide rail bars, and clamping plates 638 are provided on both sides of the top of the assembly platform 5, and the bottom of the clamping plate 638 passes through the slide rail 637 and is fixedly connected to the bottom plate 634;

[0039] like Figure 6 As shown, the limiting inclined groove 633 is first vertically upwardly arranged and then inclined upwardly arranged from the end away from the second cylinder 61 to the end close to the second cylinder 61;

[0040] It should be noted that a limited fin support is first found, and then the plurality of fins and the flat tubes are pressed and fitted by moving the clamping plate 638;

[0041] When the movable U-shaped block 646 and the positioning U-shaped block 9 just move to the bottom of the assembly table 5, the rollers 1 and 2 in the limiting inclined groove 633 move to the inclined part of the limiting inclined groove 633, and the cylinder 2 61 continues to contract, and the rollers 1 and 2 move along the inclined surface of the limiting inclined groove 633, and the two bottom plates 634 are pushed by the thrust spring 1 635, driving the two clamping plates 638 to move together synchronously, extruding and fitting the flat tube and the fin, and fixing the two to ensure the tightness of the flat tube and the fin. The gap between the two adjacent movable U-shaped blocks 646 is fixed, and the gap between the two is greater than the width of the fin, so that the fin can quickly enter the gap between the two without the need for a later pressing and beating process, thereby improving the assembly efficiency.

[0042] like Figure 1-5 As shown, the alignment component 65 includes two rollers 2, which are in driving cooperation with the other two limiting inclined grooves 633, an L plate is arranged on the outer side of the roller 2, and an alignment plate 653 is fixedly connected to the top of the L plate. The two alignment plates 653 are symmetrically arranged relative to the center line of the assembly platform 5, and both sides of the alignment plate 653 are fixedly connected to the limiting sleeve 652, and the limiting sleeve 652 is slidably arranged inside the limiting sleeve 651, and the end of the limiting sleeve 651 is fixedly connected to the assembly platform 5, and a tension spring is arranged between the limiting sleeve 652 and the assembly platform 5, and the tension spring is sleeved on the outer side of the limiting sleeve 651;

[0043] The tension spring pulls the alignment plate 653 inward, and the two alignment plates 653 move together synchronously to align the sides of the flat tube and the fin, avoiding deviations that affect the subsequent assembly of the water collecting pipe, improving the quality of the assembly of the flat tube and the fin, and the four sides of the assembled fin and flat tube are respectively limited and fixed by the alignment plate 653 and the clamping plate 638, which facilitates the transportation of the two and improves the subsequent processing efficiency of the two.

[0044] Embodiment 2: Figure 2 , 9As shown, the quick assembly mechanism 6 for flat tubes and grouped fins of a heat exchanger proposed in this embodiment is improved on the basis of embodiment 1, an auxiliary mechanism 7 for assisting the assembly of flat tubes and fins is provided below the movable tooling 2 through the assembly plate 4, the auxiliary mechanism 7 includes a plurality of placement cavities 71 provided inside the assembly plate 4, and slide grooves 72 are provided on the inner walls of the assembly plate 4 on both sides of the placement cavity 71, and thrust springs 2 are provided in the slide grooves 72, and a slider 73 is provided at the bottom of the thrust springs 2, and the slider 73 is slidably matched with the slide groove 72, and a limiting groove 74 is provided on the side wall of the slider 73, and a thrust spring 3 is provided in the limiting groove 74, and a blocking block 75 is provided at the end of the thrust spring 3, and the two blocking blocks 75 are symmetrically arranged relative to the midline of the placement cavity 71, and a protective plate 76 is fixedly arranged on the bottom side wall of the slider 73;

[0045] It should be noted that the bottom of the protective plate 76 is in contact with the assembly table 5, and the protective plate 76 presses the slider 73 upward, so that the blocking block 75 moves into the limiting groove 74, and a plurality of fins fall synchronously into the gap between two adjacent movable U-shaped blocks 646, including the gap between the positioning U-shaped block 9 and its adjacent movable U-shaped block 646. During the falling process, the protective plate 76 limits the downward movement path of the fins to ensure that the fins fall into the designated area during the loading process, thereby avoiding the misalignment of the soft fins during the loading process.

[0046] like Figure 2 , 9 As shown, a plurality of placement cavities 71 are evenly distributed above the assembly plate 4, and the placement cavity 71 is located directly above the gap between two adjacent movable U-shaped blocks 646;

[0047] like Figure 1-2 As shown, a cylinder 3 is fixedly arranged at the bottom of the movable tooling 2, and the bottom of the cylinder 3 is fixedly connected to the assembly plate 4;

[0048] It should be noted that the mobile tooling 2 is a functional device in the prior art that has the function of moving the cylinder 3. It only needs to have the moving function for the above-mentioned cylinder 3. It belongs to the prior art, so no further elaboration will be made here.

[0049] The working process and principle of the present invention are as follows:

[0050] Step 1: First, put the grouped fins into the placement cavity 71 in turn, and then place the flat tubes on the positioning U-shaped block 9 and the movable U-shaped block 646 in turn. Then, move the assembly plate 4 to the top of the assembly table 5 by moving the tooling 2, first extend the cylinder 1 3 downward to make the bottom of the protective plate 76 contact the assembly table 5, and the protective plate 76 presses the slider 73 upward to make the blocking block 75 move to the limiting groove 74, and several fins fall synchronously into the gap between two adjacent movable U-shaped blocks 646, including the gap between the positioning U-shaped block 9 and the adjacent movable U-shaped block 646. During the falling process, the protective plate 76 limits the downward movement path of the fins to ensure that the fins fall to the designated area during the loading process to avoid the misalignment of the soft fins during loading.

[0051] Step 2: Control the cylinder 1 3 to extend, and reset the assembly plate 4 through the mobile tooling 2 to prepare for the assembly of the next group. Then, control the cylinder 2 61 to contract, so that the gears 642 on both sides of the assembly table 5 are first meshed and connected with the fixed tooth plate 641 and the L-shaped tooth plate 649, so that the gear 642 drives the connecting shaft 643 to rotate, and the several threads 647 on the connecting shaft 643 rotate synchronously, and control the several equally spaced movable U-shaped blocks 646 to synchronously move closer to the positioning U-shaped block 9;

[0052] During this process, the second cylinder 61 drives the two U-shaped rods 648 to move downward synchronously, so that the plurality of movable U-shaped blocks 646 and the positioning U-shaped block 9 move downward synchronously, and the plurality of movable U-shaped blocks 646 move toward the positioning U-shaped block 9 while moving downward, so that the flat tubes close to the positioning U-shaped block 9 move toward and fit the fins on one side thereof;

[0053] Step 3: When the movable U-shaped block 646 and the positioning U-shaped block 9 just move to the bottom of the assembly table 5, the rollers 1 and 2 in the limiting inclined groove 633 move to the inclined part of the limiting inclined groove 633, and the cylinder 2 61 continues to contract. The rollers 1 and 2 move along the inclined surface of the limiting inclined groove 633, and the two bottom plates 634 are pushed by the thrust spring 1 635, driving the two clamping plates 638 to move together synchronously, extruding and fitting the flat tube and the fin, and fixing the two to ensure the tightness of the flat tube and the fin. The gap between the two adjacent movable U-shaped blocks 646 is fixed, and the gap between the two is greater than the width of the fin, so that the fin can quickly enter the gap between the two without the need for a later pressing and beating process, thereby improving the assembly efficiency.

[0054] At the same time, the tension spring pulls the alignment plate 653 inward, and the two alignment plates 653 move together synchronously to align the sides of the flat tube and the fin, avoiding deviations that affect the subsequent assembly of the water collecting pipe, improving the quality of the assembly of the flat tube and the fin, and the four sides of the assembled fin and flat tube are respectively limited and fixed by the alignment plate 653 and the clamping plate 638, which facilitates the transportation of the two and improves the subsequent processing efficiency of the two.

[0055] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A rapid assembly mechanism for flat tubes and grouped fins of a heat exchanger, comprising two groups of support frames (1) and a movable tool (2) arranged between the two groups, wherein an assembly table (5) is arranged below the movable tool (2), and is characterized in that: An assembly mechanism (6) for assembling the flat tubes and fins is arranged outside the assembly table (5); the assembly mechanism (6) comprises a second cylinder (61) fixedly connected to the bottom of the assembly table (5), and a connecting plate (62) is fixedly arranged on the top of the second cylinder (61); A transmission assembly (64) is arranged on the top of the connecting plate (62), and the transmission assembly (64) comprises a fixed tooth plate (641) and an L-shaped tooth plate (649) respectively fixedly connected to the two side walls of the assembly platform (5), the outer walls of the fixed tooth plate (641) and the L-shaped tooth plate (649) are meshingly connected with a gear (642), a connecting shaft (643) is arranged in the middle of the gear (642), a plurality of threads (647) are equidistantly arranged on the outer wall of the connecting shaft (643), a moving block (645) is connected to the outer side of the threads (647), and a movable U-shaped block (646) is connected to the top of the moving block (645); a positioning block (8) is rotatably arranged at the end of the connecting shaft (643) away from the gear (642), and a positioning U-shaped block (9) is fixedly arranged on the top of the positioning block (8); A clamping assembly (63) and an alignment assembly (65) are provided on the outer side above the second cylinder (61); An assembly plate (4) is connected to the bottom of the movable tooling (2) via a cylinder 1 (3), and an auxiliary mechanism (7) for assisting the assembly of the flat tubes and fins is provided at the bottom of the assembly plate (4); A limiting plate (644) is slidably provided at the bottoms of the plurality of moving blocks (645), and the bottom of the positioning block (8) extends into the limiting plate (644). A U-shaped rod (648) is fixedly connected to the bottom of the limiting plate (644), and the end of the U-shaped rod (648) is rotatably connected to the end of the connecting shaft (643). The bottoms of the two U-shaped rods (648) are connected to the connecting plate (62). The clamping assembly (63) comprises four limit blocks (631) fixedly connected to the side wall of the output end of the second cylinder (61), the limit blocks (631) are provided with limit inclined grooves (633) inside, and fixed plates (636) are fixedly arranged on both sides of the bottom of the assembly table (5); A thrust spring (635) is provided on one side of the fixed plate (636), a bottom plate (634) is provided at the end of the thrust spring (635), a connecting rod (632) is fixedly provided on one side of the bottom plate (634), a roller (632) is rotatably provided at the end of the connecting rod (632), and the roller (632) is in transmission cooperation with its corresponding limiting inclined groove (633); two sets of slide rails (637) are provided above the assembly platform (5), clamping plates (638) are provided on both sides of the top of the assembly platform (5), and the bottom of the clamping plate (638) passes through the slide rails (637) and is fixedly connected to the bottom plate (634); The alignment component (65) comprises two rollers No. 2, the rollers No. 2 being in driving cooperation with the other two limiting inclined grooves (633), an L-plate being arranged on the outer side of the roller No. 2, and an alignment plate (653) being fixedly connected to the top of the L-plate; both sides of the alignment plate (653) are fixedly connected to limiting sleeves (652), a limiting column (651) is slidably arranged inside the limiting sleeve (652), an end of the limiting column (651) is fixedly connected to the assembly table (5), and a tension spring is arranged on the outer wall of the limiting column (651) between the limiting sleeve (652) and the assembly table (5).

2. The rapid assembly mechanism for flat tubes and grouped fins of a heat exchanger according to claim 1 is characterized in that: The auxiliary mechanism (7) comprises a plurality of placement cavities (71) provided inside the assembly plate (4); inner walls of the assembly plate (4) on both sides of the placement cavities (71) are provided with slide grooves (72); thrust spring 2 is provided in the slide groove (72); a slider (73) is provided at the bottom of the thrust spring 2; the slider (73) is slidably matched with the slide groove (72).

3. The rapid assembly mechanism for flat tubes and grouped fins of a heat exchanger according to claim 2 is characterized in that: A limiting groove (74) is provided on the side wall of the slider (73), a thrust spring (3) is arranged in the limiting groove (74), a blocking block (75) is arranged at the end of the thrust spring (3), and a protective plate (76) is fixedly arranged on the bottom side wall of the slider (73).

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