An automatic assembly device and method for refrigeration heat exchangers

Abstract

This invention discloses an automatic assembly equipment and method for refrigeration heat exchangers, belonging to the field of automatic assembly technology. The proposed solution includes an assembly mechanism with a locking mechanism. The assembly mechanism includes an assembly frame and an assembly bracket. An adjustment rail is provided above the assembly frame, and a pressing component is provided on the adjustment rail. Limiting components are provided on both sides of the pressing component. This invention uses the pressing component to press the heat exchange equipment, ensuring tight fit between all components. It also ensures a sealed connection between the heat exchange equipment and the airtightness detection component and pressure gauge, allowing the airtightness detection component to accurately detect the airtightness of the heat exchange equipment. If airtightness issues are detected, the equipment immediately stops the subsequent assembly process, facilitating timely defect handling by operators and avoiding disassembly and rework after bolt fixing. This significantly reduces ineffective operations and effectively demonstrates the high-efficiency and high-quality production benefits of intelligent manufacturing equipment industry.

Description

Technical Field

[0001] This invention relates to the field of automatic assembly technology, and in particular to an automatic assembly device and method for refrigeration heat exchangers. Background Technology

[0002] Refrigeration heat exchangers are core components of refrigeration systems. Their assembly precision and sealing performance directly determine the refrigeration efficiency, operational stability, and service life of refrigeration equipment, and they are widely used in air conditioners, refrigerators, cold chain equipment, and other fields. With the rapid development of the intelligent manufacturing equipment industry, the demand for large-scale, high-precision production of refrigeration heat exchangers is becoming increasingly urgent, and automated assembly equipment is gradually replacing manual assembly as the industry mainstream. However, existing automated assembly equipment for refrigeration heat exchangers often completes bolt fixing before airtightness testing. If a sealing problem is detected, the bolts must be disassembled and reassembled, which is cumbersome, inefficient, and prone to component damage. Furthermore, bolt tightening is often done sequentially at single points or simultaneously in a single operation, which is not only inefficient but also prone to uneven tightening force and deviations in tightening depth at various points, leading to uneven stress on the heat exchanger and decreased sealing performance. The connection between the compression testing and bolt tightening processes is poor, resulting in poor coordination and difficulty in meeting the "efficient, precise, and stable" automated assembly requirements of the intelligent manufacturing equipment industry for refrigeration heat exchangers, thus restricting the improvement of assembly efficiency and product qualification rate.

[0003] To address the above problems, this invention proposes an automatic assembly device and method for refrigeration heat exchangers. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing automated assembly equipment for refrigeration heat exchangers. In the assembly process, bolt fixing is often completed first, followed by airtightness testing. If a sealing problem is detected, the bolts need to be disassembled and reassembled, which is cumbersome, inefficient, and prone to damaging components. Furthermore, bolt tightening is often done sequentially at a single point or simultaneously in a single operation, which is not only inefficient but also prone to uneven tightening force and deviations in tightening depth at different points, resulting in uneven stress on the heat exchanger and reduced sealing performance. Therefore, this invention proposes an automated assembly equipment and method for refrigeration heat exchangers.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An automatic assembly device for a refrigeration heat exchanger includes an assembly mechanism, wherein a locking mechanism is provided on the assembly mechanism.

[0007] The assembly mechanism includes an assembly frame and an assembly frame. An adjustment rail is provided above the assembly frame, and a pressing component is provided on the adjustment rail. Limiting components are provided on both sides of the pressing component. The pressing component presses and assembles the heat exchange equipment. The heat exchange equipment is located in the assembly frame, and an airtightness detection component is provided in the assembly frame.

[0008] The locking mechanism includes a locking control assembly, and below the locking control assembly are multiple tightening assemblies. The tightening assemblies are used to lock the bolts onto the anchor rods of the heat exchange equipment, thereby realizing the assembly of the heat exchange equipment.

[0009] Preferably, the adjusting rail includes two guide rods, which are fixedly connected to the assembly frame, and slide blocks are slidably connected to the two guide rods. One side of the slide block is fixedly connected to an adjusting cylinder, which is mounted on the assembly frame.

[0010] Preferably, the pressing assembly includes a first electric push rod, which is mounted on a slide block. A pressure plate is mounted on the bottom end of the first electric push rod, and two pressure gauges are mounted on the pressure plate.

[0011] Preferably, the limiting component includes a second electric push rod, which is mounted on the pressure plate, and one end of the second electric push rod is fixedly connected to a limiting frame.

[0012] Preferably, the airtightness testing component includes a testing fan, which is installed in the assembly frame and is connected to a bidirectional connector via two solenoid valves.

[0013] Preferably, the locking control assembly includes two third electric push rods and multiple sprockets. The two third electric push rods are mounted on a slide block, and mounting frames are installed at the bottom ends of the two third electric push rods.

[0014] Preferably, the plurality of sprockets are rotatably mounted on the mounting frame via bearings, the plurality of sprockets are connected by chain drive, the sprockets mesh with the drive structure, and the drive structure is mounted on the mounting frame.

[0015] Preferably, the tightening assembly includes a mounting ring, which is fixedly connected to the bottom of the sprocket. The mounting ring has multiple dovetail grooves, and a dovetail slider is slidably connected in the dovetail groove. Both sides of the dovetail slider are provided with elastic structures, and one end of the elastic structure is fixed to the side wall of the dovetail groove.

[0016] Preferably, a fixing plate is fixedly connected to the dovetail slider, a fourth electric push rod is mounted on the fixing plate, an mounting plate is mounted on one end of the fourth electric push rod, two piston cylinders are mounted on the mounting plate, the two piston cylinders are connected by a pipe, a piston rod is provided inside the piston cylinder, a spring is fixedly connected between the piston rod and the end wall of the piston cylinder, and one end of the piston rod that extends out of the piston cylinder is hinged to the clamping plate by a pin.

[0017] An automatic assembly method for an automatic assembly equipment for refrigeration heat exchangers includes the following steps:

[0018] S1. When assembling the heat exchange equipment, place the heat exchange equipment in the assembly frame, and align the lower end of the heat exchange equipment with the bidirectional connector. Then, push the mounting plate to move using the fourth electric push rod so that the clamping plate can contact the nut. The clamping plate adapts to the clamping angle according to the shape of the nut, and the two piston rods self-adjust by different forces to maintain stable clamping of the nut.

[0019] S2. Then adjust the position of the pressure plate to correspond with the heat exchange equipment by adjusting the rail. Then, the first electric push rod pushes the pressure plate down to apply pressure to the top of the heat exchange equipment. After pressing, the pressure gauges are sealed and connected to the upper port of the heat exchange equipment. At this time, open the corresponding solenoid valve as needed, detect the fan supplying air into the heat exchange equipment, and then observe the pressure value of the pressure gauge to determine whether there is a problem of insufficient air tightness.

[0020] S3. After inspection, the third electric push rod pushes down the mounting frame to align the nut with the anchor rod of the heat exchanger. At this time, the drive structure drives the sprocket to rotate. The sprocket drives the tightening assembly to rotate, and the nut moves downward along the anchor rod through the chain drive. When the nut contacts the limit frame, the nuts that are not in place continue to move, while the nuts that are in contact with the limit frame move through the elastic structure. When the nut is in place, the second electric push rod drives the limit frame to disengage from the anchor rod. At this time, the nuts move synchronously to realize the assembly operation of the heat exchanger.

[0021] Compared with the prior art, the present invention provides an automatic assembly device and method for refrigeration heat exchangers, which has the following advantages:

[0022] 1. The automatic assembly equipment and method for this refrigeration heat exchanger can perform a pressing operation on the heat exchange equipment through the pressing component, ensuring that all components fit tightly. At the same time, it ensures that the heat exchange equipment is sealed and connected to the airtightness detection component and pressure gauge, so that the airtightness detection component can accurately detect the airtightness of the heat exchange equipment. If problems such as non-compliance with airtightness are detected, the equipment immediately stops the subsequent assembly process, which makes it easy for operators to deal with defects in a timely manner, avoids disassembly and rework after bolt fixing, greatly reduces ineffective operations, and effectively reflects the benefits of high-efficiency and high-quality production in the intelligent manufacturing equipment industry.

[0023] 2. The automatic assembly equipment and method for this refrigeration heat exchanger uses a locking control component to operate multiple tightening components to assemble nuts with the anchor rods of the heat exchanger. The tightening process is divided into two stages. In the first stage, all bolts are tightened uniformly to the position of the limit bracket. The nuts in place can be buffered by the elastic structure. The buffer section absorbs the small deviations in the tightening of nuts at different points, avoiding the accumulation of initial tightening deviations and ensuring that the nuts reach the preset height synchronously. In the second stage, the limit bracket is removed, and all tightening components exert force simultaneously to tighten the bolts uniformly to the standard torque, ensuring that the tightening force and tightening depth of the bolts at each point are consistent, ensuring that the heat exchanger is subjected to uniform force, and effectively avoiding problems such as component deformation and seal failure caused by uneven tightening.

[0024] 3. The automatic assembly equipment and method for this refrigeration heat exchanger, by pressing the heat exchanger with a pressing component, not only provides a stable testing basis for airtightness testing, ensuring accurate and reliable test results, but also allows the various components of the heat exchanger to be properly fitted in advance, creating stable conditions for subsequent bolt tightening and avoiding tightening deviations due to loose components. The locking control component synchronously controls the tightening component to simultaneously tighten the nuts. The pressed heat exchanger effectively reduces tightening difficulty and ensures uniform fixation based on the pressed fit, further enhancing the sealing performance of the heat exchanger and effectively improving the assembly quality and efficiency, thus meeting the development needs of the intelligent manufacturing equipment industry. Attached Figure Description

[0025] Figure 1 This is a perspective view of an automatic assembly device for a refrigeration heat exchanger proposed in this invention.

[0026] Figure 2 This is a perspective view of the assembly rack of an automatic assembly equipment for refrigeration heat exchangers proposed in this invention.

[0027] Figure 3 This is a perspective view of the heat exchanger assembly frame of an automatic assembly device for a refrigeration heat exchanger according to the present invention.

[0028] Figure 4 This is a three-dimensional view of the heat exchange device, pressing assembly, and assembly frame of an automatic assembly equipment for a refrigeration heat exchanger proposed in this invention.

[0029] Figure 5 This is a perspective view of the pressing assembly of an automatic assembly device for a refrigeration heat exchanger proposed in this invention.

[0030] Figure 6 This is a perspective view of the assembly frame of an automatic assembly device for a refrigeration heat exchanger proposed in this invention.

[0031] Figure 7 This is a perspective view of a heat exchange device for an automatic assembly equipment for a refrigeration heat exchanger proposed in this invention.

[0032] Figure 8 This is a perspective view of a locking control component of an automatic assembly equipment for a refrigeration heat exchanger proposed in this invention;

[0033] Figure 9 This is a perspective view of the mounting frame of an automatic assembly device for a refrigeration heat exchanger proposed in this invention.

[0034] Figure 10 This is a perspective view of the tightening assembly of an automatic assembly device for a refrigeration heat exchanger proposed in this invention.

[0035] Figure 11 This is a perspective view of a partial cross-section of the tightening assembly of an automatic assembly equipment for a refrigeration heat exchanger proposed in this invention.

[0036] In the diagram: 100, Assembly mechanism; 101, Assembly frame; 102, Adjusting rail; 1021, Adjusting cylinder; 1022, Guide rod; 1023, Slide seat; 103, Pressing assembly; 1031, First electric push rod; 1032, Pressure plate; 1033, Pressure gauge; 104, Assembly frame; 105, Limiting assembly; 1051, Second electric push rod; 1052, Limiting frame; 106, Air tightness detection assembly; 1061, Detection fan; 1062, Solenoid valve; 1063, Two-way connector; 107, Heat exchange equipment; 200. Locking mechanism; 201. Locking control assembly; 2011. Third electric push rod; 2012. Mounting frame; 2013. Chain; 2014. Sprocket; 2015. Drive structure; 202. Tightening assembly; 2021. Mounting ring; 2022. Dovetail slide; 2023. Elastic structure; 2024. Dovetail slider; 2025. Fixing plate; 2026. Fourth electric push rod; 2027. Piston cylinder; 2028. Piston rod; 2029. Spring; 20210. Clamping plate; 20211. Mounting plate. Detailed Implementation

[0037] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0038] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "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 this invention and simplifying the description, 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 limitations on this invention.

[0039] Example 1: Refer to Figures 1-6 and Figure 9 An automatic assembly device for a refrigeration heat exchanger includes an assembly mechanism 100, on which a locking mechanism 200 is provided.

[0040] The assembly mechanism 100 includes an assembly frame 101 and an assembly frame 104. An adjustment rail 102 is provided above the assembly frame 101. The adjustment rail 102 includes two guide rods 1022, which are fixedly connected to the assembly frame 101. A slide block 1023 is slidably connected to each guide rod 1022, allowing the slide block 1023 to slide smoothly on the guide rods 1022, thus ensuring smooth adjustment of the pressing assembly 103. One side of the slide block 1023 is fixedly connected to an adjusting cylinder 1021. The adjusting cylinder 1021 drives the slide block 1023 to move, thereby adjusting the position of the pressing assembly 103 and the locking mechanism 200 to ensure the pressing assembly is in place. The pressing assembly 103 and locking mechanism 200 correspond to the heat exchanger 107. After the pressing assembly 103 is offset from the heat exchanger 107, the heat exchanger 107 can be easily placed and removed. The adjusting cylinder 1021 is mounted on the assembly frame 101, and the pressing assembly 103 is provided on the adjusting rail 102. The pressing assembly 103 includes a first electric push rod 1031, which is mounted on a slide block 1023. A pressure plate 1032 is mounted at the bottom end of the first electric push rod 1031. The first electric push rod 1031 can push the pressure plate 1032 downwards to press the components of the heat exchanger 107, thereby ensuring the pressure gauge 1033 and the double... The joint 1063 is sealed to the heat exchanger 107. After the heat exchanger 107 is tightened, the assembly difficulty of the subsequent nuts and anchor bolts is reduced, while ensuring uniform tightening of each bolt. Two pressure gauges 1033 are installed on the pressure plate 1032. The pressure gauges 1033 can detect internal pressure changes in the heat exchanger 107, thereby determining whether the airtightness of the heat exchanger 107 is qualified. Limiting components 105 are provided on both sides of the pressing assembly 103. The pressing assembly 103 presses and assembles the heat exchanger 107. The heat exchanger 107 is located in the assembly frame 104, which is equipped with an airtightness detection component 1. 06. The airtightness testing component 106 includes a testing fan 1061, which supplies air to the heat exchange equipment 107. When a certain amount of air is supplied, the pressure value can be observed by the pressure gauge 1033 to see if it remains constant. The testing fan 1061 is installed in the assembly frame 104. A gasket is added to the assembly frame 104. The gasket and the bidirectional connector 1063 can support the heat exchange equipment 107 to ensure the stability of the heat exchange equipment 107. The testing fan 1061 is connected to the bidirectional connector 1063 through two solenoid valves 1062. The two ends of the bidirectional connector 1063 can be connected separately as needed through the solenoid valves 1062.

[0041] The locking mechanism 200 includes a locking control assembly 201. A plurality of tightening assemblies 202 are provided below the locking control assembly 201. The tightening assemblies 202 are used to lock the bolts onto the anchor rods of the heat exchange equipment 107, thereby realizing the assembly of the heat exchange equipment 107.

[0042] In this embodiment, the heat exchange device 107 can be pressed by the pressing component 103 to ensure that all components fit tightly. At the same time, it ensures that the heat exchange device 107 is sealed and connected with the airtightness detection component 106 and the pressure gauge 1033, so that the airtightness detection component 106 can accurately detect the airtightness of the heat exchange device 107. If problems such as substandard airtightness are detected, the equipment will immediately stop the subsequent assembly process, which makes it easy for operators to deal with defects in a timely manner, avoids disassembly and rework after bolt fixing, greatly reduces ineffective operations, and effectively reflects the benefits of efficient and high-quality production in the intelligent manufacturing equipment industry.

[0043] Example 2: Refer to Figures 7-11 An automatic assembly device for a refrigeration heat exchanger includes a locking control assembly 201. The locking control assembly 201 includes two third electric push rods 2011 and multiple sprockets 2014. The two third electric push rods 2011 are mounted on a slide block 1023. The bottom ends of the two third electric push rods 2011 are mounted on an mounting frame 2012. The multiple sprockets 2014 are rotatably mounted on the mounting frame 2012 via bearings. The sprockets 2014 can rotate stably via the bearings, thereby keeping the tightening assembly 202 rotating stably. The sprockets 2014 can be driven by a chain 2013, thereby driving the multiple tightening assemblies 202 to move synchronously. The multiple sprockets 2014 are connected by the chain 2013. The sprockets 2014 mesh with a drive structure 2015, which is mounted on the mounting frame 2012.

[0044] The tightening assembly 202 includes a mounting ring 2021, which is fixedly connected to the lower part of the sprocket 2014. The mounting ring 2021 has multiple dovetail grooves 2022, within which dovetail sliders 2024 are slidably connected. The dovetail sliders 2024 can slide within the dovetail grooves 2022, providing a buffer space for the clamping plate 20210. Furthermore, the elastic structure 2023 can be a spring structure, which can stabilize and position the dovetail sliders 2024, preventing them from sliding. 24. The dovetail slider 2024 can move freely, and the elastic structure 2023 ensures that the dovetail slider 2024 has a buffer space. Elastic structures 2023 are provided on both sides of the dovetail slider 2024. One end of the elastic structure 2023 is fixed to the side wall of the dovetail groove 2022. A fixing plate 2025 is fixedly connected to the dovetail slider 2024. A fourth electric push rod 2026 is installed on the fixing plate 2025. The fourth electric push rod 2026 pushes the mounting plate 20211 to move, allowing the clamping plate 20210 to move smoothly. The clamping plate 20210 can move via a pin to adaptively fit the nut, ensuring stable clamping. One end of the fourth electric push rod 2026 is equipped with a mounting plate 20211. Two piston cylinders 2027 are mounted on the mounting plate 20211, connected by a pipe. After the piston cylinders 2027 are connected, the clamping plate 20210 contacts the nut at different points, allowing the two piston rods 2028 to adaptively adjust using air pressure, ensuring stable clamping of the nut. 10. An adaptive stabilizing clamping nut is provided. A piston rod 2028 is provided inside the piston cylinder 2027. A spring 2029 is fixedly connected between the piston rod 2028 and the end wall of the piston cylinder 2027. The spring 2029 can maintain the stable position of the piston rod 2028. After the clamping plate 20210 is released, the spring 2029 can drive the piston rod 2028 to complete the reset, thereby allowing the clamping plate 20210 to automatically reset. One end of the piston rod 2028 that protrudes from the piston cylinder 2027 is hinged to the clamping plate 20210 through a pin.

[0045] The limiting component 105 includes a second electric push rod 1051, which is mounted on the pressure plate 1032. One end of the second electric push rod 1051 is fixedly connected to a limiting frame 1052. The limiting frame 1052 can be driven to disengage from the anchor rod by the second electric push rod 1051, which facilitates the continued tightening of the nut. The limiting frame 1052 is provided with multiple notches, which can allow the anchor rod to pass through smoothly. At the same time, the notches are smaller than the diameter of the nut, which can effectively support the nut.

[0046] In this embodiment: the drive structure 2015 drives the sprocket 2014 to move, and the chain 2013 keeps the sprocket 2014 synchronously driving multiple tightening components 202 to rotate, so that the tightening components 202 can assemble the nuts with the anchor rods of the heat exchanger 107. The tightening process is divided into two stages. In the first stage, all bolts are tightened to the position of the limit frame 1052. The nuts in place can be buffered by the elastic structure 2023. The buffer section absorbs the small deviations of the nuts at different points, avoids the accumulation of initial tightening deviations, and ensures that the nuts reach the preset height synchronously. In the second stage, the limit component 105 is removed, and all tightening components 202 exert force synchronously to tighten the bolts to the standard torque, ensuring that the tightening force and tightening depth of the bolts at each point are consistent, ensuring that the heat exchanger 107 is subjected to uniform force, and effectively avoiding problems such as component deformation and sealing failure caused by uneven tightening.

[0047] Example 3: Reference Figures 1-4 and Figure 9 An automatic assembly device for a refrigeration heat exchanger includes an assembly mechanism 100. The assembly mechanism 100 includes an assembly frame 101 and an assembly frame 104. An adjustment rail 102 is provided above the assembly frame 101. A pressing component 103 is provided on the adjustment rail 102. Limiting components 105 are provided on both sides of the pressing component 103. The pressing component 103 presses and assembles a heat exchange device 107. The heat exchange device 107 is located in the assembly frame 104. An airtightness detection component 106 is provided in the assembly frame 104.

[0048] The locking mechanism 200 includes a locking control assembly 201. A plurality of tightening assemblies 202 are provided below the locking control assembly 201. The tightening assemblies 202 are used to lock the bolts onto the anchor rods of the heat exchange equipment 107, thereby realizing the assembly of the heat exchange equipment 107.

[0049] In this embodiment, the pressing component 103 presses the heat exchange device 107, which not only provides a stable testing basis for airtightness testing and ensures the accuracy and reliability of the airtightness testing component 106's test results, but also allows the components of the heat exchange device 107 to be properly fitted in advance, creating stable conditions for subsequent bolt tightening and avoiding tightening deviations due to loose components. The locking control component 201 synchronously controls the tightening component 202 to simultaneously tighten the nuts. After pressing, the heat exchange device 107 can effectively reduce the difficulty of tightening. At the same time, it can ensure that the heat exchange device 107 is uniformly fixed on the basis of pressing and fitting, further enhancing the sealing performance of the heat exchange device 107, effectively improving the assembly quality and efficiency of the heat exchange device 107, and adapting to the development needs of the intelligent manufacturing equipment industry.

[0050] An automatic assembly method for an automatic assembly equipment for refrigeration heat exchangers includes the following steps:

[0051] S1. When assembling the heat exchanger 107, place the heat exchanger 107 in the assembly frame 104, so that the lower port of the heat exchanger 107 is connected to the bidirectional connector 1063 respectively. Then, push the mounting plate 20211 to move through the fourth electric push rod 2026, so that the clamping plate 20210 can contact the nut. According to the shape of the nut, the clamping plate 20210 adapts to the clamping angle. And through different forces, the two piston rods 2028 self-adjust to maintain stable clamping of the nut.

[0052] S2. Then, adjust the position of the pressure plate 1032 to correspond with the heat exchanger 107 via the adjustment rail 102. Then, the first electric push rod 1031 pushes the pressure plate 1032 down to apply pressure to the top of the heat exchanger 107. After pressing, the pressure gauge 1033 is sealed and connected to the upper port of the heat exchanger 107. At this time, the corresponding solenoid valve 1062 is opened as needed to detect the air delivered by the fan 1061 into the heat exchanger 107. Then, observe the pressure value of the pressure gauge 1033 to determine whether there is a problem of insufficient air tightness.

[0053] S3. After inspection, the third electric push rod 2011 pushes down the mounting frame 2012 to align the nut with the anchor rod of the heat exchanger 107. At this time, the drive structure 2015 drives the sprocket 2014 to rotate. The sprocket 2014 is driven by the chain 2013, causing the tightening assembly 202 to rotate and the nut to move downward along the anchor rod. When the nut contacts the limit frame 1052, the nuts that are not in place continue to move, while the nuts that are in contact with the limit frame 1052 move through the elastic structure 2023. When the nut is in place, the second electric push rod 1051 drives the limit frame 1052 to disengage from the anchor rod. At this time, the nuts move synchronously to realize the assembly operation of the heat exchanger 107.

[0054] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An automatic assembling apparatus for a refrigerant heat exchanger, comprising an assembling mechanism (100), characterized in that, The assembly mechanism (100) is provided with a locking mechanism (200); The assembly mechanism (100) includes an assembly frame (101) and an assembly frame (104). An adjustment rail (102) is provided above the assembly frame (101). A pressing component (103) is provided on the adjustment rail (102). Limiting components (105) are provided on both sides of the pressing component (103). The pressing component (103) presses and assembles the heat exchange device (107). The heat exchange device (107) is located in the assembly frame (104). An airtightness detection component (106) is provided in the assembly frame (104). The locking mechanism (200) includes a locking control assembly (201), and a plurality of tightening assemblies (202) are provided below the locking control assembly (201). The tightening assemblies (202) are used to lock the bolts onto the anchor rods of the heat exchange device (107), thereby realizing the assembly of the heat exchange device (107). The adjusting rail (102) includes two guide rods (1022), which are fixedly connected to the assembly frame (101). A slide block (1023) is slidably connected to the two guide rods (1022). One side of the slide block (1023) is fixedly connected to the adjusting cylinder (1021), which is mounted on the assembly frame (101). The locking control assembly (201) includes two third electric push rods (2011) and multiple sprockets (2014). The two third electric push rods (2011) are mounted on a slide (1023). The bottom ends of the two third electric push rods (2011) are mounted with mounting frames (2012). The multiple sprockets (2014) are rotatably mounted on the mounting frames (2012) via bearings. The multiple sprockets (2014) are connected by a chain (2013). The sprockets (2014) mesh with a drive structure (2015). The drive structure (2015) is mounted on the mounting frames (2012). The tightening assembly (202) includes a mounting ring (2021), which is fixedly connected to the bottom of the sprocket (2014). The mounting ring (2021) has multiple dovetail grooves (2022), and a dovetail slider (2024) is slidably connected in the dovetail groove (2022). Both sides of the dovetail slider (2024) are provided with elastic structures (2023), and one end of the elastic structure (2023) is fixed to the side wall of the dovetail groove (2022). A fixing plate (2025) is fixedly connected to the dovetail slider (2024). A fourth electric push rod (2026) is installed on the fixing plate (2025). An mounting plate (20211) is installed at one end of the fourth electric push rod (2026). Two piston cylinders (2027) are installed on the mounting plate (20211). The two piston cylinders (2027) are connected by a pipe. A piston rod (2028) is provided inside the piston cylinder (2027). A spring (2029) is fixedly connected between the piston rod (2028) and the end wall of the piston cylinder (2027). One end of the piston rod (2028) that protrudes from the piston cylinder (2027) is hinged to the clamping plate (20210) by a pin.

2. The automatic assembly equipment for a refrigeration heat exchanger according to claim 1, characterized in that, The pressing assembly (103) includes a first electric push rod (1031), which is mounted on a slide (1023). A pressure plate (1032) is mounted on the bottom end of the first electric push rod (1031), and two pressure gauges (1033) are mounted on the pressure plate (1032).

3. The automatic assembly equipment for a refrigeration heat exchanger according to claim 2, characterized in that, The limiting component (105) includes a second electric push rod (1051), which is mounted on the pressure plate (1032). One end of the second electric push rod (1051) is fixedly connected to the limiting frame (1052).

4. The automatic assembly equipment for a refrigeration heat exchanger according to claim 3, characterized in that, The airtightness testing component (106) includes a testing fan (1061), which is installed in the assembly frame (104). The testing fan (1061) is connected to a bidirectional connector (1063) through two solenoid valves (1062).

5. The automatic assembly method of an automatic assembly equipment for a refrigeration heat exchanger according to claim 4, characterized in that, Includes the following steps: S1. When assembling the heat exchanger (107), place the heat exchanger (107) in the assembly frame (104) so ​​that the lower port of the heat exchanger (107) is connected to the bidirectional connector (1063) respectively. Then, push the mounting plate (20211) to move through the fourth electric push rod (2026) so that the clamping plate (20210) can contact the nut. According to the shape of the nut, the clamping plate (20210) adapts to the clamping angle. Through different forces, the two piston rods (2028) self-adjust to maintain stable clamping of the nut. S2. Then, adjust the position of the pressure plate (1032) to correspond with the heat exchanger (107) by adjusting the rail (102). Then, the first electric push rod (1031) pushes the pressure plate (1032) down to apply pressure to the top of the heat exchanger (107). After pressing, the pressure gauge (1033) is sealed and connected to the upper port of the heat exchanger (107). At this time, the corresponding solenoid valve (1062) is opened as needed. The fan (1061) is detected to deliver air into the heat exchanger (107). Then, the pressure value of the pressure gauge (1033) is observed to determine whether there is a problem of insufficient air tightness. S3. After the test, the third electric push rod (2011) pushes down the mounting frame (2012) so that the nut corresponds to the anchor rod of the heat exchanger (107). At this time, the drive structure (2015) drives the sprocket (2014) to rotate. The sprocket (2014) is driven by the chain (2013) to make the tightening component (202) rotate. The nut moves down along the anchor rod. When the nut contacts the limit frame (1052), the nut that is not in place continues to move, while the nut that contacts the limit frame (1052) moves through the elastic structure (2023). When the nut is in place, the second electric push rod (1051) drives the limit frame (1052) to disengage from the anchor rod. At this time, the nut moves synchronously to realize the assembly operation of the heat exchanger (107).

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