Flexible fixing tool for heat exchanger in refrigeration field

By designing flexible fixing tooling for heat exchangers in the refrigeration field, the problem of fixing and transporting the compact tube-fin heat exchanger fin set during the cannula process is solved, and the stable clamping and efficient conveying of the fin set is achieved, which improves production efficiency.

CN223277834UActive Publication Date: 2025-08-29DALIAN EVERYDAY GOOD ELECTRONICS
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Patent Information

Application Number
CN202422606739.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-28
Publication Date
2025-08-29
Estimated Expiration
2034-10-28

AI Technical Summary

Technical Problem

In the prior art, the fin set of compact tube fin heat exchangers lacks effective fixing and conveying tooling during the cannula process, resulting in low production efficiency.

Method used

A flexible fixed tooling for heat exchanger in the field of refrigeration is designed, including a tooling plate, a first clamping mechanism and a second clamping mechanism. The first clamping mechanism is clamped in a perpendicular direction of the fin group palletizing direction, and the second clamping mechanism is clamped in a palletizing direction of the fin group, and cooperates with the conveying line through the connecting parts to achieve stable transport of the fin group.

Benefits of technology

It improves the stability and conveying efficiency before and after the cannula of the fin set, ensures that the U-shaped copper tube can be inserted into the installation hole of the fin set, and improves the degree of production automation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a flexible fixing tool for a heat exchanger in the refrigeration field. The flexible fixing tool comprises a tool plate, a first clamping mechanism and a second clamping mechanism. The first clamping mechanism is installed on the tool plate and used for clamping fin sets in the direction perpendicular to the stacking direction of the fin sets of the heat exchanger. The first clamping mechanism comprises a first clamping plate component and a first clamping component, the first clamping component provides clamping force for the first clamping plate component, and the first clamping plate component clamps a fin set. The second clamping mechanism is installed on the tool plate and used for clamping the fin sets in the stacking direction of the heat exchanger fin sets. The second clamping mechanism comprises a second clamping plate component and a second clamping component, the second clamping component provides clamping force for the second clamping plate component, and the second clamping plate component clamps the fin set. The first clamping mechanism and the second clamping mechanism are arranged, so that the fin sets are clamped in the stacking direction of the fin sets of the heat exchanger and in the direction perpendicular to the stacking direction of the fin sets of the heat exchanger. The flexible fixing tool clamps the fin set before pipe insertion and the fin assembly after pipe insertion and then conveys the fin set and the fin assembly through cooperation of the connecting part and the conveying chain.
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Description

Technical Field

[0001] The utility model relates to the technical field of air-conditioning manufacturing, in particular to a flexible fixing tool for a heat exchanger in the refrigeration field. Background Art

[0002] A typical household air conditioner has two main heat exchangers: the evaporator in the indoor unit and the condenser in the outdoor unit. These two heat exchangers operate with refrigerant on one side and air on the other. To enhance heat transfer, the air side typically uses a compact heat exchange area. Most household air conditioners utilize a compact tube-and-fin heat exchanger. The fins of a compact tube-and-fin heat exchanger typically feature multiple mounting holes that align with the outer diameter of a U-shaped copper tube. The manufacturing process typically involves first stamping the fins using a press, then stacking them into a fin pack. The U-shaped copper tubes are then inserted side by side into the mounting holes on the fin pack to form the fin assembly. Finally, the open ends of the U-shaped copper tubes are expanded. After drying the insides of the U-shaped copper tubes, U-shaped copper elbows are inserted and welded to connect the individual U-shaped copper tubes, forming a single channel. To facilitate automated tube insertion, a tooling system is required to coordinate with the conveyor system to transport the fin pack before insertion and the resulting fin assembly after insertion. Utility Model Content

[0003] The utility model provides a flexible fixing tool for a heat exchanger in the refrigeration field to solve the above technical problems.

[0004] In order to achieve the above purpose, the technical solution of the utility model is:

[0005] A flexible fixing tool for a heat exchanger in the refrigeration field comprises: a tooling plate, a first clamping mechanism, a second clamping mechanism and a connecting component; the first clamping mechanism is installed on the tooling plate, and is used to clamp the fin group along a direction perpendicular to the stacking direction of the heat exchanger fin group; the first clamping mechanism comprises a first clamping plate component and a first clamping component, the first clamping component provides a clamping force for the first clamping plate component, and the first clamping plate component clamps the fin group; the second clamping mechanism is installed on the tooling plate, and is used to clamp the fin group along the stacking direction of the heat exchanger fin group; the second clamping mechanism comprises a second clamping plate component and a second clamping component, the second clamping component provides a clamping force for the second clamping plate component, and the second clamping plate component clamps the fin group; the connecting component is used to cooperate with a conveyor line to transport the tooling plate.

[0006] Preferably, the first clamping plate component includes a first fixed clamping plate and a first movable clamping plate, and the first clamping component provides clamping force for the first movable clamping plate; the first fixed clamping plate is fixed on the tooling plate, the first fixed clamping plate and the first movable clamping plate are arranged opposite to each other, and the first clamping component installed on the tooling plate is connected to the first movable clamping plate; in the stacking direction of the fin group, the length of the first fixed clamping plate and the first movable clamping plate is greater than or equal to the length of the fin group.

[0007] Preferably, the first clamping component includes: a first sliding plate capable of sliding in a direction perpendicular to the stacking direction of the fin group, a first spring, a pin I fixedly connected to the tooling plate, a pin II installed on the first sliding plate and a first guide assembly; the first sliding plate is connected to the first movable clamping plate, and the first guide assembly is used to guide the first sliding plate; one end of the first spring is connected to pin I and the other end is connected to pin II, and the elastic force provided by the first spring drives the first sliding plate and then drives the first movable clamping plate to clamp the fin group.

[0008] Preferably, the second clamping plate component includes a second fixed clamping plate and a second movable clamping plate, and the second clamping component provides clamping force for the second movable clamping plate; the second fixed clamping plate is fixed on the tooling plate, the second fixed clamping plate and the second movable clamping plate are arranged opposite to each other, and the second clamping component installed on the tooling plate is connected to the second movable clamping plate.

[0009] Preferably, the second clamping component includes: a second sliding plate capable of sliding along the stacking direction of the fin group, a second spring, a pin III fixedly connected to the tooling plate, a pin IV installed on the second sliding plate and a second guide assembly; the second sliding plate is connected to the second movable clamping plate, and the second guide assembly is used to guide the second movable clamping plate; one end of the second spring is connected to pin III and the other end is connected to pin IV, and the elastic force provided by the second spring drives the second sliding plate and then drives the second movable clamping plate to clamp the fin group.

[0010] Preferably, the second fixed clamp includes a first fixed jaw and a second fixed jaw spaced apart along a direction perpendicular to the stacking direction of the fin group, and the second movable clamp includes a first movable jaw and a second movable jaw; the first movable jaw corresponds to the first fixed jaw and clamps the area between the mounting holes of the fins at both ends of the fin group; the second movable jaw corresponds to the second fixed jaw and clamps the area between the mounting holes of the fins at both ends of the fin group.

[0011] Preferably, arc-shaped notches are provided on the upper ends of the first movable jaw, the first fixed jaw, the second movable jaw and the second fixed jaw; the arc-shaped notches of the first movable jaw and the first fixed jaw respectively support the two ends of a U-shaped copper tube inserted into the lowest mounting hole of the fin group, and the arc-shaped notches of the second movable jaw and the second fixed jaw respectively support the two ends of another U-shaped copper tube inserted into the lowest mounting hole of the fin group.

[0012] Preferably, the connecting component includes two support plates fixed under the tooling plate, the two support plates are arranged opposite to each other, and the lower surface of the support plates is used to cooperate with the conveyor chain of the conveyor line; each support plate is provided with two rotatable rollers, and the four rollers are grouped into two groups, and the two groups of rollers roll along one side of the two sides of the conveyor line for positioning.

[0013] Preferably, the connecting component further comprises a positioning plate fixedly arranged below the tooling plate, and the positioning plate is used to cooperate with a positioning mechanism of the conveying line to perform positioning along the conveying direction.

[0014] Preferably, four second positioning sleeves are fixedly provided below the tooling plate, and the four second positioning sleeves cooperate with the lifting devices installed on both sides of the conveyor line to lift the flexible fixed tooling and separate it from the conveyor line.

[0015] Beneficial effects:

[0016] This application discloses a flexible fixture for heat exchangers in the refrigeration field. By providing a first clamping mechanism and a second clamping mechanism, the fixture clamps the fin assembly both along and perpendicular to the stacking direction of the heat exchanger fin assembly. The fixture clamps the fin assembly before and after tube insertion, then transports it via a connecting component and a conveyor chain. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0018] Figure 1 This is a schematic diagram of the structure of a flexible fixing tool for a heat exchanger in the refrigeration field disclosed in this utility model. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the structure of a flexible fixing tool for a heat exchanger in the refrigeration field disclosed in this utility model. Figure 2 ;

[0020] Figure 3 This is a front view of a flexible fixing tool for a heat exchanger in the refrigeration field disclosed in the utility model;

[0021] Figure 4 This is a top view of a flexible fixing tool for a heat exchanger in the refrigeration field disclosed in the utility model;

[0022] Figure 5 This is a bottom view of a flexible fixing tool for a heat exchanger in the refrigeration field disclosed in the utility model;

[0023] Figure 6 This is a structural diagram of a flexible fixing tooling plate for a heat exchanger in the refrigeration field disclosed in the utility model;

[0024] Figure 7 This is a left view of a flexible fixing tool for a heat exchanger in the refrigeration field disclosed by the utility model.

[0025] 71, tooling plate; 711, connecting seat; 712, fixing plate; 713, first notch; 714, first opening; 715, first boss;

[0026] 721, first fixed splint; 722, first movable splint; 7231, first sliding plate; 7232, first spring; 7233, pin I; 7234, pin II; 7235, first guide assembly; 7236, connecting plate; 7237, stopper; 724, first fixed seat;

[0027] 731, second fixed clamping plate; 7311, first fixed clamping jaw; 7312, second fixed clamping jaw; 732, second movable clamping plate; 7321, first movable clamping jaw; 7322, second movable clamping jaw; 7331, second sliding plate; 7332, second spring; 7333, pin III; 7334, pin IV; 7335, second guide assembly; 7336, first mounting plate; 7337, second mounting plate; 7338, second positioning sleeve; 7339, third movable clamping jaw;

[0028] 741. Support plate; 742. Roller; 743. Positioning plate; 744. Third positioning sleeve; 745. Baffle. DETAILED DESCRIPTION

[0029] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0030] A flexible fixing tool for heat exchanger in refrigeration field, combined with Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5As shown, it includes: a tooling plate 71, a first clamping mechanism, a second clamping mechanism, and a connecting component. The first clamping mechanism is installed on the tooling plate 71 and is used to clamp the fin group in a direction perpendicular to the stacking direction of the heat exchanger fin group. The first clamping mechanism includes a first clamping plate component and a first clamping component. The first clamping component provides clamping force for the first clamping plate component, and the first clamping plate component clamps the fin group. The second clamping mechanism is installed on the tooling plate 71 and is used to clamp the fin group in the stacking direction of the heat exchanger fin group. The second clamping mechanism includes a second clamping plate component and a second clamping component. The second clamping component provides clamping force for the second clamping plate component, and the second clamping plate component clamps the fin group. The connecting component is used to cooperate with the conveyor line to transport the tooling plate 71. The fin group before insertion is placed on the tooling plate 71. The first clamping mechanism and the second clamping mechanism clamp the fin group from two directions. The connecting component cooperates with the conveyor line to transport the tooling plate 71, and the fin group is transported along with the tooling plate 71. The fin assembly after the insertion is clamped by the first clamping mechanism and the second clamping mechanism and then transported along with the tooling plate 71 .

[0031] Preferably, the first clamping plate component includes a first fixed clamping plate 721 and a first movable clamping plate 722. The first clamping member provides clamping force for the first movable clamping plate 722. The first fixed clamping plate 721 is fixed to the tooling plate 71. The first fixed clamping plate 721 and the first movable clamping plate 722 are arranged opposite each other. The first clamping member installed on the tooling plate 71 connects to the first movable clamping plate 722. The first clamping member drives the first movable clamping plate 722 toward the first fixed clamping plate 721, thereby clamping the fin group or fin assembly. In the stacking direction of the fin group, the length of the first fixed clamping plate 721 and the first movable clamping plate 722 is greater than or equal to the length of the fin group, so that all fins of the fin group or fin assembly can be clamped.

[0032] Specifically, the first fixed plate 721 and the first movable plate 722 are made of profiles, a plurality of first fixing seats 724 are fixed to the tooling plate 71 by a first set of screws, and the first fixing seats 724 are fixed to the first fixed plate 721 by a second set of screws and T-nuts.

[0033] Preferably, the first clamping component includes: a first sliding plate 7231 capable of sliding in a direction perpendicular to the stacking direction of the fin group, a first spring 7232, a pin I 7233 fixedly connected to the tooling plate 71, a pin II 7234 installed on the first sliding plate 7231 and a first guide assembly 7235; the first sliding plate 7231 is connected to the first movable clamping plate 722, and the first guide assembly 7235 is used to guide the first sliding plate 7231; one end of the first spring 7232 is connected to the pin I 7233 and the other end is connected to the pin II 7234. The elastic force provided by the first spring 7232 drives the first sliding plate 7231 and then drives the first movable clamping plate 722 to clamp the fin group.

[0034] Specifically, two parallel connecting blocks 711 are fixed to the bottom of the tooling plate 71 via a third set of screws. The first sliding plate 7231 is connected to the connecting blocks 711 via a first guide assembly 7235. Pin I 7233 is threadedly mounted on the fixed plate 712. The fixed plate 712 is parallel to the first movable clamping plate 722 and located on one side of the first sliding plate 7231. The two ends of the fixed plate 712 are respectively fixed to the two connecting blocks 711 via a fourth set of screws. Pin II 7234 is threadedly mounted on the side of the first sliding plate 7231 facing the fixed plate 712.

[0035] Specifically, the first guide assembly 7235 uses two sets of linear guide rails, which are respectively installed on the two connecting seats 711. The guide rails can be fixedly installed on the connecting seats 711, and the slider is fixedly installed on the first sliding plate 7231.

[0036] Specifically, a connecting plate 7236 is fixedly installed on a side surface of the first sliding plate 7231 away from the fixed plate 712 , and the connecting plate 7236 and the first movable clamping plate 722 are fixed by a fifth set of screws and T-nuts.

[0037] Specifically, combined Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 and Figure 6 As shown, the tooling plate 71 is provided with a first notch 713. The connecting plate 7236 passes from the bottom of the tooling plate 71 through the first notch 713 to the top of the tooling plate 71, where it connects to the first movable clamping plate 722 and is movable within the first notch 713 in a direction perpendicular to the stacking direction of the fin groups. The first notch 713 acts as a clearance, allowing the connecting plate 7236 to drive the first movable clamping plate 722 to move.

[0038] Specifically, a limiter 7237 is provided between the connecting plate 7236 and the tooling plate 71. The limiter 7237 is used to limit the position of the connecting plate 7236 moving perpendicular to the stacking direction of the fin group, thereby limiting the minimum distance between the first fixed clamping plate 721 and the first movable clamping plate 722, and avoiding the first fixed clamping plate 721 and the first movable clamping plate 722 from causing damage to the fins due to excessive clamping force.

[0039] Specifically, the limiter 7237 is made of flexible materials such as rubber, and achieves a certain buffering effect when the first spring 7232 applies a force or the entire flexible fixing tool is positioned and stopped during the conveying process.

[0040] Specifically, when the first sliding plate 7231 is located on the side of the connecting plate 7236 facing the first fixed clamping plate 721, the first spring 7232 is a tension spring; when the first sliding plate 7231 is located on the side of the connecting plate 7236 away from the first fixed clamping plate 721, the first spring 7232 is a compression spring.

[0041] Preferably, combined Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, the second clamping plate assembly includes a second fixed clamping plate 731 and a second movable clamping plate 732. The second clamping member provides clamping force for the second movable clamping plate 732. The second fixed clamping plate 731 is fixed to the tooling plate 71. The second fixed clamping plate 731 and the second movable clamping plate 732 are arranged opposite each other. The second clamping member installed on the tooling plate 71 connects to the second movable clamping plate 732. The second clamping member drives the second movable clamping plate 732 toward the second fixed clamping plate 731. The second fixed clamping plate 731 and the second movable clamping plate 732 clamp the fin group or fin assembly.

[0042] Preferably, the second clamping component includes: a second sliding plate 7331 capable of sliding along the stacking direction of the fin group, a second spring 7332, a pin III 7333 fixedly connected to the tooling plate 71, a pin IV 7334 installed on the second sliding plate 7331 and a second guide assembly 7335; the second sliding plate 7331 is connected to the second movable clamping plate 732, and the second guide assembly 7335 is used to guide the second movable clamping plate 732; one end of the second spring 7332 is connected to the pin III 7333 and the other end is connected to the pin IV 7334. The elastic force provided by the second spring 7332 drives the second sliding plate 7331 and then drives the second movable clamping plate 732 to clamp the fin group.

[0043] Preferably, combined Figure 1 、 Figure 2 、 Figure 4 and Figure 7 As shown, the second fixed clamping plate 731 includes a first fixed jaw 7311 and a second fixed jaw 7312 spaced apart and perpendicular to the stacking direction of the fin group. The second movable clamping plate 732 includes a first movable jaw 7321 and a second movable jaw 7322. The first movable jaw 7321 corresponds to the first fixed jaw 7311 and clamps the area between the mounting holes of the fins at both ends of the fin group. The second movable jaw 7322 corresponds to the second fixed jaw 7312 and clamps the area between the mounting holes of the fins at both ends of the fin group. The first fixed jaw 7311, the second fixed jaw 7312, the first movable jaw 7321, and the second movable jaw 7322 avoid blocking the mounting holes of the fins at both ends of the fin group, ensuring the insertion of the U-shaped copper tube.

[0044] Specifically, when the second sliding plate 7331 is located on the side of the pin III 7333 away from the second fixed clamping plate 731, the second spring 7332 is a tension spring; when the second sliding plate 7331 is located between the pin III 7333 and the second fixed clamping plate 731, the second spring 7332 is a compression spring.

[0045] Preferably, the first movable jaw 7321, the first fixed jaw 7311, the second movable jaw 7322, and the second fixed jaw 7312 all have arc-shaped notches on their upper ends. The arc-shaped notches in the first movable jaw 7321 and the first fixed jaw 7311 respectively lift the ends of a U-shaped copper tube inserted into the lowest mounting hole of the fin assembly, while the arc-shaped notches in the second movable jaw 7322 and the second fixed jaw 7312 respectively lift the ends of another U-shaped copper tube inserted into the lowest mounting hole of the fin assembly. The first movable jaw 7321, the first fixed jaw 7311, the second movable jaw 7322, and the second fixed jaw 7312 lift the fin assembly.

[0046] Specifically, the first movable jaw 7321 is aligned with the arc-shaped notch of the first fixed jaw 7311 , and the second movable jaw 7322 is aligned with the arc-shaped notch of the second fixed jaw 7312 , so that the fin assembly remains horizontal.

[0047] Specifically, two arc-shaped notches are formed on the upper ends of the first movable clamping jaw 7321 and the second movable clamping jaw 7322 , and the two arc-shaped notches correspond to two straight sections supporting a U-shaped copper tube.

[0048] Specifically, the first movable clamping jaw 7321 and the second movable clamping jaw 7322 are mounted on the first mounting plate 7336, and the first mounting plate 7336 is fixed to the second sliding plate 7331 via two first positioning sleeves and first positioning screws, thereby achieving the positioning and installation of the first mounting plate 7336. The position of the first mounting plate 7336 for mounting the first movable clamping jaw 7321 and the second movable clamping jaw 7322 is finely machined to ensure the installation accuracy of the first movable clamping jaw 7321 and the second movable clamping jaw 7322, thereby preventing the first movable clamping jaw 7321 and the second movable clamping jaw 7322 from being misaligned in a direction perpendicular to the stacking direction of the fin group, thereby preventing the fin group from tilting due to uneven force applied in the direction perpendicular to the stacking direction of the fin group, and preventing the fin group from being misaligned and affecting the intubation.

[0049] Specifically, the second sliding plate 7331 is further provided with a plurality of second mounting plates 7337, which are secured to the second sliding plate 7331 via two second positioning sleeves 7338 and second positioning screws. Two third movable jaws 7339 are mounted on the second mounting plates 7337. The third movable jaws 7339 have the same shape and size as the second movable jaws 7322. The third movable jaws 7339 are inserted between the fins and support the U-shaped copper tube.

[0050] Specifically, combined Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 and Figure 6As shown, a first opening 714 is opened on the tooling plate 71, and the second sliding plate 7331 corresponds to the first opening 714, so that the upper ends of the first movable jaw 7321, the second movable jaw 7322 and the third movable jaw 7339 pass through the first opening 714 to the upper surface of the tooling plate 71.

[0051] Specifically, a first boss 715 protruding into the first opening 714 is fixedly provided on the tooling plate 71. The first boss 715 is located between the first mounting plate 7336 and the second fixed clamping plate 731. The first mounting plate 7336 extends the second sliding plate 7331 in a direction perpendicular to the stacking direction of the fin group, and the free end is opposite to the first boss 715. When the second sliding plate 7331 moves along the clamping direction, the free end of the first mounting plate 7336 abuts against the first boss 715 to limit the second sliding plate 7331.

[0052] Specifically, the second guide assembly 7335 adopts four sets of linear guide rails, the guide rails of the four sets of linear guide rails can be fixedly installed on the second sliding plate 7331, and the sliders are fixedly installed on the tooling plate 71.

[0053] Preferably, the connecting component includes two support plates 741 fixed under the tooling plate 71, the two support plates 741 are arranged opposite to each other, and the lower surface of the support plate 741 is used to cooperate with the conveyor chain of the conveyor line; each support plate 741 is provided with two rotatable rollers 742, and the four rollers 742 are grouped into two, and the two groups of rollers 742 roll along one side of the two sides of the conveyor line for positioning.

[0054] Preferably, the connecting component further comprises a positioning plate 743 fixedly mounted below the tooling plate 71 , and the positioning plate 743 is used to cooperate with a positioning mechanism of the conveying line to perform positioning along the conveying direction.

[0055] Specifically, two positioning plates 743 are spaced apart along the length direction of the tooling plate 71, that is, along the stacking direction of the fin groups. Since the tooling plate 71 is long, the two positioning plates 743 can avoid twisting after contacting the positioning mechanism.

[0056] Preferably, four second positioning sleeves 744 are fixedly provided below the tooling plate 71 , and the four second positioning sleeves 744 cooperate with the lifting devices installed on both sides of the conveyor line to lift the flexible fixed tooling and separate it from the conveyor line.

[0057] Specifically, baffles 745 are installed at both ends of the length of the tooling plate 71, and the baffles 745 are used to cooperate with the lifting device to achieve height positioning.

[0058] Working principle of this application device:

[0059] The conveyor line of the intubation production line delivers the flexible fixed tooling to the loading station. The tooling expansion mechanism at the loading station expands the flexible fixed tooling, and the fin assembly, with two steel needles inserted in the front path, is placed on the flexible fixed tooling. The first movable clamp 7321 and the first fixed clamp 7311, and the second movable clamp 7322 and the second fixed clamp 7312 respectively support the two steel needles. The tooling expansion mechanism withdraws, and the second fixed and second movable clamps of the flexible fixed tooling first clamp the fin assembly, and then the first fixed and first movable clamps clamp the fin assembly. After the fin assembly is secured, the steel needle extraction mechanism removes the two steel needles. The fin assembly is transported along the flexible fixed tooling to the intubation unit for intubation. After intubation, the fin assembly continues to be transported along the flexible fixed tooling.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A flexible fixing tool for heat exchangers in the refrigeration field, characterized in that: include: A tooling plate (71), a first clamping mechanism, a second clamping mechanism, and a connecting component; The first clamping mechanism is mounted on the tooling plate (71) and is used to clamp the fin group in a direction perpendicular to the stacking direction of the heat exchanger fin group; the first clamping mechanism comprises a first clamping plate component and a first clamping component, the first clamping component provides a clamping force for the first clamping plate component, and the first clamping plate component clamps the fin group; The second clamping mechanism is mounted on the tooling plate (71) and is used to clamp the fin group along the stacking direction of the heat exchanger fin group; the second clamping mechanism comprises a second clamping plate component and a second clamping component, the second clamping component provides a clamping force for the second clamping plate component, and the second clamping plate component clamps the fin group; The connecting component is used to cooperate with the conveying line to convey the tooling plate (71).

2. The flexible fixing fixture for heat exchangers in the refrigeration field according to claim 1, characterized in that: The first clamping plate component includes a first fixed clamping plate (721) and a first movable clamping plate (722), and the first clamping component provides a clamping force for the first movable clamping plate (722); the first fixed clamping plate (721) is fixed on the tooling plate (71), the first fixed clamping plate (721) and the first movable clamping plate (722) are arranged opposite to each other, and the first clamping component installed on the tooling plate (71) is connected to the first movable clamping plate (722); in the stacking direction of the fin group, the length of the first fixed clamping plate (721) and the first movable clamping plate (722) is greater than or equal to the length of the fin group.

3. The flexible fixing fixture for heat exchangers in the refrigeration field according to claim 2, characterized in that: The first clamping component includes: a first sliding plate (7231) capable of sliding in a direction perpendicular to the stacking direction of the fin group, a first spring (7232), a pin I (7233) fixedly connected to the tooling plate (71), a pin II (7234) installed on the first sliding plate (7231) and a first guide assembly (7235); the first sliding plate (7231) is connected to the first movable clamping plate (722), and the first guide assembly (7235) is used for guiding the first sliding plate (7231); one end of the first spring (7232) is connected to the pin I (7233) and the other end is connected to the pin II (7234), and the elastic force provided by the first spring (7232) drives the first sliding plate (7231) and then drives the first movable clamping plate (722) to clamp the fin group.

4. The flexible fixing fixture for heat exchangers in the refrigeration field according to claim 1, characterized in that: The second clamping plate component includes a second fixed clamping plate (731) and a second movable clamping plate (732), and the second clamping component provides a clamping force for the second movable clamping plate (732); the second fixed clamping plate (731) is fixed on the tooling plate (71), the second fixed clamping plate (731) and the second movable clamping plate (732) are arranged opposite to each other, and the second clamping component installed on the tooling plate (71) is connected to the second movable clamping plate (732).

5. The flexible fixing fixture for heat exchangers in the refrigeration field according to claim 4, characterized in that: The second clamping component includes: a second sliding plate (7331) capable of sliding along the stacking direction of the fin group, a second spring (7332), a pin III (7333) fixedly connected to the tooling plate (71), a pin IV (7334) installed on the second sliding plate (7331) and a second guide assembly (7335); the second sliding plate (7331) is connected to the second movable clamping plate (732), and the second guide assembly (7335) is used to guide the second movable clamping plate (732); one end of the second spring (7332) is connected to the pin III (7333) and the other end is connected to the pin IV (7334), and the elastic force provided by the second spring (7332) drives the second sliding plate (7331) and then drives the second movable clamping plate (732) to clamp the fin group.

6. The flexible fixing fixture for heat exchangers in the refrigeration field according to claim 4, characterized in that: The second fixed clamping plate (731) includes a first fixed clamping jaw (7311) and a second fixed clamping jaw (7312) spaced apart and arranged perpendicular to the stacking direction of the fin group, and the second movable clamping plate (732) includes a first movable clamping jaw (7321) and a second movable clamping jaw (7322); The first movable clamping jaw (7321) corresponds to the first fixed clamping jaw (7311) and clamps the area between the mounting holes of the fins at both ends of the fin group; The second movable clamp (7322) corresponds to the second fixed clamp (7312) and clamps the area between the mounting holes of the fins at both ends of the fin group.

7. The flexible fixing fixture for heat exchangers in the refrigeration field according to claim 6, characterized in that: The upper ends of the first movable jaw (7321), the first fixed jaw (7311), the second movable jaw (7322) and the second fixed jaw (7312) are all provided with arc-shaped notches; the arc-shaped notches of the first movable jaw (7321) and the first fixed jaw (7311) respectively support the two ends of a U-shaped copper tube inserted into the lowest mounting hole of the fin group, and the arc-shaped notches of the second movable jaw (7322) and the second fixed jaw (7312) respectively support the two ends of another U-shaped copper tube inserted into the lowest mounting hole of the fin group.

8. The flexible fixing fixture for heat exchangers in the refrigeration field according to claim 1, characterized in that: The connecting component includes two support plates (741) fixedly arranged below the tooling plate (71), the two support plates (741) are arranged opposite to each other, and the lower surface of the support plates (741) is used to cooperate with the conveying chain of the conveyor line; each support plate (741) is provided with two rotatable rollers (742), and the four rollers (742) form a group of two, and the two groups of rollers (742) roll along one side of the two sides of the conveyor line for positioning.

9. The flexible fixing fixture for heat exchangers in the refrigeration field according to claim 8, characterized in that: The connecting component further comprises a positioning plate (743) fixedly arranged below the tooling plate (71), and the positioning plate (743) is used to cooperate with the positioning mechanism of the conveying line to perform positioning along the conveying direction.

10. The flexible fixing fixture for heat exchangers in the refrigeration field according to claim 8, characterized in that: Four second positioning sleeves (744) are fixedly provided below the tooling plate (71), and the four second positioning sleeves (744) cooperate with the lifting devices installed on both sides of the conveyor line to lift the flexible fixed tooling and separate it from the conveyor line.