Heat exchanger core assembly machine

By introducing an automatic tube laying and clamping structure into the heat exchanger core assembly machine, the problem of inaccurate heat exchanger tube placement has been solved, achieving precise positioning and automated production, thus improving assembly quality and production efficiency.

CN223960853UActive Publication Date: 2026-03-03SHANDONG QIKE SAFETY TECH CONSULTING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-27
Publication Date
2026-03-03

AI Technical Summary

Technical Problem

The existing heat exchanger core assembly machine lacks an automatic tube laying structure, which leads to inaccurate placement of heat exchanger tubes, reduces the consistency and accuracy of assembly, increases the labor intensity of workers, makes it impossible to achieve automated production, and reduces production efficiency.

Method used

A heat exchanger core assembly machine was designed, comprising an automatic tube laying structure and a clamping structure. Through a motor-driven threaded rod and gear rack system, the heat exchange tubes are precisely placed and the component positions are fixed, ensuring that the laying position of each tube is accurate and achieving automated positioning and adjustment.

Benefits of technology

This improved the assembly consistency and accuracy of the heat exchanger core, reduced the labor intensity of workers, enabled automated production, and improved the working efficiency of the production line.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of heat exchanger assembly, and provides a heat exchanger core assembly machine which comprises a workbench, the top of the workbench is fixedly connected with two fixing plates, the inner sides of the two fixing plates are fixedly connected with limiting rods, and the outer surfaces of the limiting rods are movably sleeved with limiting sleeves. A first connecting plate is fixedly connected to the top of the limiting sleeve, a placing plate is fixedly connected to the top of the first connecting plate, a rotating rod is rotatably connected to one side of the placing plate, a plurality of shifting plates are fixedly connected to the outer surface of the rotating rod, and a gear is fixedly connected to the extending end of the rotating rod; and the outer surface of the gear is in engaged connection with a rack. According to the utility model, the device is provided with an automatic tube laying structure, so that the heat exchange tubes can be accurately placed at specified positions, thereby ensuring that the laying position of each tube is accurate, improving the consistency and accuracy of assembly, ensuring the overall quality and performance of a heat exchanger core body, and reducing the labor intensity of workers.
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Description

Technical Field

[0001] This utility model relates to the field of heat exchanger assembly technology, and in particular to a heat exchanger core assembly machine. Background Technology

[0002] Heat exchanger core assembly machines are used to automatically or semi-automatically assemble various components of a heat exchanger core. They can automatically complete a series of operations such as pressing flat tubes into fin assemblies, fin conveying and transfer, reducing manual operations, greatly accelerating production speed, and increasing output per unit time. For example, the heat exchanger core pressing equipment from Haining Fuhua Automation Technology automates the manufacturing process through conveyor tracks and fin transfer components, improving production efficiency. With precision fixtures, positioning devices, and detection systems, it ensures the accuracy and consistency of component assembly, effectively avoiding quality problems such as uneven wavebands, stripping, and misaligned tie rod holes that occur during manual assembly. Some assembly machines even use high-definition cameras and image processing technology to comprehensively inspect the quality of the radiator core, ensuring that each component meets standards.

[0003] However, existing technologies, such as Chinese Publication No. CN222429893U, "A Heat Exchanger Core Assembly Machine," relate to a heat exchanger core assembly machine, belonging to the field of heat exchanger cores. This machine includes a frame with two positioning frames sliding relative to each other, the two positioning frames moving closer or further apart. A first control component is provided on the frame to control the movement of the two positioning frames. Positioning plates slide relative to each other on the positioning frames, and a second control component is provided on the positioning frames to control the sliding of the positioning plates. In this application, the operator can control the movement of the two positioning frames through the first control component to suit the length of the heat exchanger core, and the operator can control the movement of the positioning plates through the second control component to suit the width of the heat exchanger core.

[0004] However, this device lacks an automatic tube-laying structure, making it impossible to precisely place the heat exchange tubes in the designated positions. This reduces the consistency and accuracy of the assembly, compromises the overall quality and performance of the heat exchanger core, and increases the labor intensity of workers. Furthermore, the lack of a clamping structure prevents precise positioning of the various components of the heat exchanger core, hindering the accurate relative positioning between components and increasing the time required for manual positioning and adjustment. This prevents automated production and reduces the efficiency of the production line. Utility Model Content

[0005] The purpose of this invention is to address the problems in the existing technology, such as the inability to accurately place heat exchange tubes in designated positions to ensure the accurate placement of each tube, which reduces assembly consistency and accuracy, fails to guarantee the overall quality and performance of the heat exchanger core, increases the labor intensity of workers, and makes it impossible to accurately position the various components of the heat exchanger core, thus increasing the time for manual positioning and adjustment, preventing automated production, and reducing the efficiency of the production line.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a heat exchanger core assembly machine, comprising a workbench, two fixed plates fixedly connected to the top of the workbench, limit rods fixedly connected to the inner sides of the two fixed plates, a limit sleeve movably sleeved on the outer surface of the limit rods, a first connecting plate fixedly connected to the top of the limit sleeves, a placement plate fixedly connected to the top of the first connecting plate, a rotating rod rotatably connected to one side of the placement plate, multiple levers fixedly connected to the outer surface of the rotating rod, a gear fixedly connected to one end of the rotating rod, a rack meshing with the outer surface of the gear, and the bottom of the rack fixedly connected to the top of the workbench. The second connecting plate, the placement plate, the first connecting plate, and the limit sleeve can only move along the axial direction of the limit rods.

[0007] In a preferred embodiment, a second connecting plate is fixedly connected to the bottom of the placement plate, and an internal threaded sleeve is fixedly connected to the bottom of the second connecting plate. A threaded rod is threadedly connected to the inner surface of the internal threaded sleeve, and rotating the thread will drive the internal threaded sleeve.

[0008] In a preferred embodiment, the outer surface of the threaded rod is rotatably connected to two shaft plates and extends out at one end. The bottom of the two shaft plates is fixedly connected to the top of the worktable, and the threaded rod can rotate inside the shaft plates.

[0009] In a preferred embodiment, a first motor is fixedly connected to the top of the workbench, and the output end of the first motor is fixedly connected to one end of the threaded rod. When the first motor is energized, it will drive the threaded rod to rotate inside the shaft plate.

[0010] In a preferred embodiment, two limiting grooves are provided on the worktable, and a limiting plate is movably embedded inside the limiting groove. A clamping plate is fixedly connected to the top of the limiting plate, and the two limiting plates and the clamping plate move along the slotting direction of the limiting groove.

[0011] In a preferred embodiment, a connecting rod is rotatably connected to the bottom of the limiting plate, and a synchronizing rod is rotatably connected to the end of the connecting rod away from the limiting plate. The other end of the connecting rod pushes the limiting plate.

[0012] In a preferred embodiment, a power rod is fixedly embedded inside the synchronizing rod, and the top of the power rod is rotatably connected to the bottom of the worktable. The synchronizing rod, which rotates with the power rod, will drive one end of the connecting rod.

[0013] In a preferred embodiment, a pressure plate is fixedly connected to the bottom of the workbench, and a second motor is fixedly connected to the inner surface of the pressure plate. The output end of the second motor is fixedly connected to the bottom of the power rod. When the second motor is powered on, it will drive the power rod to rotate.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0015] 1. This utility model has an automatic tube laying structure, which can accurately place the heat exchange tubes in the designated position, thereby ensuring that the laying position of each tube is accurate, improving the consistency and accuracy of assembly, ensuring the overall quality and performance of the heat exchanger core, and reducing the labor intensity of workers.

[0016] 2. The present invention has a clamping structure that precisely positions each component of the heat exchanger core, ensuring accurate relative positions between components, reducing the time for manual positioning and adjustment, realizing automated production, and improving the work efficiency on the production line. Attached Figure Description

[0017] Figure 1 A three-dimensional structural schematic diagram of a heat exchanger core assembly machine provided by this utility model;

[0018] Figure 2 A side view of a heat exchanger core assembly machine provided by this utility model;

[0019] Figure 3 A side view of a heat exchanger core assembly machine provided by this utility model;

[0020] Figure 4 A front structural schematic diagram of a heat exchanger core assembly machine provided by this utility model;

[0021] Figure 5 This is a schematic diagram of the disassembly structure of a heat exchanger core assembly machine provided by this utility model.

[0022] Legend:

[0023] 1. Workbench; 2. Fixed plate; 3. Limiting rod; 4. Limiting sleeve; 5. First connecting plate; 6. Placement plate; 7. Rotating rod; 8. Pulley; 9. Gear; 10. Rack; 11. Second connecting plate; 12. Internal threaded sleeve; 13. Threaded rod; 14. Shaft plate; 15. First motor; 16. Limiting groove; 17. Limiting plate; 18. Clamping plate; 19. Connecting rod; 20. Synchronizing rod; 21. Power rod; 22. Pressure plate; 23. Second motor. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1 to 5 This utility model provides a technical solution: a heat exchanger core assembly machine, including a workbench 1. Two fixed plates 2 are fixedly connected to the top of the workbench 1. Limiting rods 3 are fixedly connected to the inner sides of the two fixed plates 2. Limiting sleeves 4 are movably sleeved on the outer surface of the limiting rods 3. A first connecting plate 5 is fixedly connected to the top of the limiting sleeves 4. A placement plate 6 is fixedly connected to the top of the first connecting plate 5. A rotating rod 7 is rotatably connected to one side of the placement plate 6. Multiple levers 8 are fixedly connected to the outer surface of the rotating rod 7. A gear 9 is fixedly connected to one end of the rotating rod 7. A rack 10 is meshed with the outer surface of the gear 9. The bottom of the rack 10 is fixedly connected to the top of the workbench 1. When moving, the meshing action of the rack 10 with the gear 9 will drive the rotating rod 7 and the levers 8 to rotate, so that the levers 8 will place the cores sequentially inside the heat exchanger.

[0026] like Figures 1 to 5 As shown, a second connecting plate 11 is fixedly connected to the bottom of the placement plate 6, and an internal threaded sleeve 12 is fixedly connected to the bottom of the second connecting plate 11. A threaded rod 13 is threadedly connected to the inner surface of the internal threaded sleeve 12. Rotating the thread will drive the internal threaded sleeve 12.

[0027] like Figures 1 to 5 As shown, the outer surface of the threaded rod 13 is rotatably connected to two shaft plates 14 and extends out one end. The bottom of the two shaft plates 14 is fixedly connected to the top of the worktable 1, and the threaded rod 13 can rotate inside the shaft plates 14.

[0028] like Figures 1 to 5 As shown, a first motor 15 is fixedly connected to the top of the workbench 1. The output end of the first motor 15 is fixedly connected to one end of the threaded rod 13. When the first motor 15 is powered on, it will drive the threaded rod 13 to rotate inside the shaft plate 14.

[0029] like Figures 1 to 5 As shown, two limiting grooves 16 are provided on the workbench 1. A limiting plate 17 is movably embedded inside the limiting groove 16. A clamping plate 18 is fixedly connected to the top of the limiting plate 17. The two limiting plates 17 and the clamping plate 18 move along the slotting direction of the limiting groove 16.

[0030] like Figures 1 to 5 As shown, a connecting rod 19 is rotatably connected to the bottom of the limiting plate 17. A synchronizing rod 20 is rotatably connected to one end of the connecting rod 19 away from the limiting plate 17. The other end of the connecting rod 19 will push the limiting plate 17.

[0031] like Figures 1 to 5 As shown, a power rod 21 is fixedly embedded inside the synchronizing rod 20. The top of the power rod 21 is rotatably connected to the bottom of the worktable 1. The synchronizing rod 20, which rotates with the power rod 21, will drive one end of the connecting rod 19.

[0032] like Figures 1 to 5 As shown, a pressure plate 22 is fixedly connected to the bottom of the workbench 1, and a second motor 23 is fixedly connected to the inner surface of the pressure plate 22. The output end of the second motor 23 is fixedly connected to the bottom of the power rod 21. When the second motor 23 is powered on, it will drive the power rod 21 to rotate.

[0033] Working principle: First, the core to be installed is mounted on the placement plate 6. Then, the heat exchanger is placed on top of the workbench 1. The external power supply of the second motor 23 is turned on. After the second motor 23 is powered on, it will drive the power rod 21 to rotate. The synchronous rod 20, which rotates with the power rod 21, will drive one end of the connecting rod 19. The other end of the connecting rod 19 will push the limiting plate 17, so that the two limiting plates 17 and the clamping plate 18 move closer to each other along the slotting direction of the limiting groove 16, and clamp and fix the internal heat exchanger. The pressure plate 22 at the bottom of the device acts as a fixing support. The device is supported by an external power source for the first motor 15. Once powered on, the first motor 15 will drive the threaded rod 13 to rotate inside the shaft plate 14. The rotating thread will drive the internal threaded sleeve 12, causing the second connecting plate 11, the placement plate 6, the first connecting plate 5, and the limiting sleeve 4 to move along the axis of the limiting rod 3. The limiting rod 3 is fixed to the top of the workbench 1 by the fixing plate 2. During the movement, the meshing action of the rack 10 with the gear 9 will drive the rotating rod 7 and the dial plate 8 to rotate, causing the dial plate 8 to place the cores sequentially inside the heat exchanger.

[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A heat exchanger core assembly machine, comprising a workbench (1), characterized in that, The top of the workbench (1) is fixedly connected to two fixed plates (2). The inner sides of the two fixed plates (2) are fixedly connected to limit rods (3). The outer surface of the limit rods (3) is movably fitted with a limit sleeve (4). The top of the limit sleeve (4) is fixedly connected to a first connecting plate (5). The top of the first connecting plate (5) is fixedly connected to a placement plate (6). One side of the placement plate (6) is rotatably connected to a rotating rod (7). The outer surface of the rotating rod (7) is fixedly connected to multiple levers (8). One end of the rotating rod (7) is fixedly connected to a gear (9). The outer surface of the gear (9) is meshed with a rack (10). The bottom of the rack (10) is fixedly connected to the top of the workbench (1).

2. The heat exchanger core assembly machine according to claim 1, characterized in that: The bottom of the placement plate (6) is fixedly connected to a second connecting plate (11), and the bottom of the second connecting plate (11) is fixedly connected to an internal threaded sleeve (12). The inner surface of the internal threaded sleeve (12) is threadedly connected to a threaded rod (13).

3. A heat exchanger core assembly machine according to claim 2, characterized in that: The outer surface of the threaded rod (13) is rotatably connected to two shaft plates (14) and extends out one end. The bottom of the two shaft plates (14) is fixedly connected to the top of the workbench (1).

4. A heat exchanger core assembly machine according to claim 3, characterized in that: The top of the workbench (1) is fixedly connected to a first motor (15), and the output end of the first motor (15) is fixedly connected to one end of the threaded rod (13).

5. A heat exchanger core assembly machine according to claim 4, characterized in that: The workbench (1) has two limiting grooves (16), and a limiting plate (17) is movably embedded inside the limiting groove (16). A clamping plate (18) is fixedly connected to the top of the limiting plate (17).

6. A heat exchanger core assembly machine according to claim 5, characterized in that: The bottom of the limiting plate (17) is rotatably connected to a connecting rod (19), and the end of the connecting rod (19) away from the limiting plate (17) is rotatably connected to a synchronizing rod (20).

7. A heat exchanger core assembly machine according to claim 6, characterized in that: The synchronous rod (20) is internally fitted with a power rod (21), and the top of the power rod (21) is rotatably connected to the bottom of the workbench (1).

8. A heat exchanger core assembly machine according to claim 7, characterized in that: The bottom of the workbench (1) is fixedly connected to a pressure plate (22), and the inner surface of the pressure plate (22) is fixedly connected to a second motor (23). The output end of the second motor (23) is fixedly connected to the bottom of the power rod (21).

Citation Information

Patent Citations

  • Heat exchanger core assembly machine

    CN222429893U