Heating disc assembly step-by-step assembling method and system based on rotating disc type equipment

Abstract

The invention discloses a heating disc assembly step-by-step assembling method and system based on rotating disc type equipment, and is suitable for automatic production of heating disc assemblys.The heating disc assembly comprises a steel bowl, a heat conduction plate attached to the bottom of the steel bowl, a center positioning piece embedded in the middle of the heat conduction plate and a heating pipe welded to the bottom of the heat conduction plate; the assembling process is divided into two circles of circulation, wherein in the first circle, steel bowl feeding, soldering paste coating and detecting, center positioning piece installing and heat conduction plate and heating pipe preassembling are completed; and final laser welding and discharging are carried out after the second circle of interval stations, deformation caused by heat accumulation is effectively avoided, the system integrates the bearing beam, the detection beam, the annular stock bin, the multi-degree-of-freedom robot and the double-vision detection device, and high-precision directional assembly of the heat conduction plate and the heating pipe is achieved through vision guidance.

Description

Technical Field

[0001] This application relates to the field of automated production equipment technology, specifically to the field of step-by-step assembly method and system for heating plate components based on rotary equipment. Background Technology

[0002] Currently, the assembly of heating element components in electric kettles largely relies on manual operation. Workers manually align the steel bowl, heat-conducting plate, positioning components, and heating element in sequence before placing them into welding fixtures. This method is inefficient, inconsistent, and difficult to meet the needs of mass production.

[0003] To transition to automated production, at least the following challenges need to be addressed. First, the heat-conducting plate must fit precisely to the bottom of the steel bowl. Since both are metal parts with small clearances, traditional mechanical positioning is prone to misalignment due to accumulated errors.

[0004] Then, the component needs to be laser welded twice. First, the heat-conducting plate and the positioning part are fixed, and then the heating tube is welded. If it is completed continuously in a single turn, the heat accumulation can easily cause the heat-conducting plate to deform.

[0005] Therefore, how to achieve high-precision automatic assembly of the heat-conducting plate and the steel bowl, and coordinate the hot process cycle of the two welding points, has become a key bottleneck for the implementation of automation. Summary of the Invention

[0006] This application proposes a step-by-step assembly method and system for heating plate components based on rotary equipment, aiming to solve the deformation risk caused by the concentration of hot processes in the prior art, as well as the problem that it is difficult to automatically assemble the heat-conducting plate and the steel bowl with high precision, so as to achieve automated production of heating plate components.

[0007] To achieve the above objectives, the present application adopts the following technical solution: In a first aspect, this application proposes a step-by-step assembly method for a heating plate assembly based on a rotary device, wherein the heating plate assembly includes: A steel bowl is inverted and set on the rotating worktable of the turntable equipment; a heat-conducting plate is attached to the bottom plane of the steel bowl; a center positioning component is embedded in the middle through hole of the heat-conducting plate and welded thereon; and a heating tube is welded to the bottom of the heat-conducting plate. The method involves a rotary table with workstations G1 to G8 arranged around it. The entire installation process is divided into a first circle and a second circle, wherein: In the first round, the steel bowl is loaded at station G1, the bottom of the steel bowl is coated with welding paste at station G2, the welding paste is visually inspected at station G3, the heat-conducting plate is loaded at station G4, the center positioning component is installed and the initial laser welding is performed at station G5, the bottom of the heat-conducting plate is coated with welding paste at station G6, the welding paste is visually inspected at station G7, and the heating element is loaded at station G8. The second round involves the final laser welding of the heating element and the heat-conducting plate at station G5, followed by the unloading of the finished product at station G8. Furthermore, the first and second rounds of operations are performed at a interval of one workstation. When a workstation is performing the first round of operations, its adjacent workstation is performing the second round of operations.

[0008] Thus, by separating the laser welding process into two stages through a dual-cycle process, the risk of thermal deformation of the heat-conducting plate is effectively mitigated. At the same time, the use of solder paste bonding and positioning component welding achieves a reliable connection between the heat-conducting plate and the steel bowl, avoiding the misalignment problem that is easily caused by traditional mechanical positioning methods, thereby improving assembly consistency and product lifespan.

[0009] In some possible implementations, the heat-conducting plate is further provided with a plurality of positioning protrusions extending to the bottom. Before the heat-conducting plate is loaded, the distribution position and circumferential angle of the positioning protrusions on the heat-conducting plate are identified by a vision system, the required position and orientation of the heat-conducting plate are calculated, and closed-loop correction is performed during loading.

[0010] In some possible implementations, the heating tube has an opening direction corresponding to the distribution position of the positioning protrusions. Before feeding the heating tube, the opening position of the feeding heating tube is identified by a vision system, the required position adjustment of the feeding heating tube is calculated, and closed-loop correction is performed during feeding.

[0011] In some possible implementations, after applying solder paste to the bottom of the heat-conducting plate, the position of the positioning protrusion is checked again by the vision system to see if it has shifted, and the feeding path of the heating tube is dynamically adjusted in combination with the visual inspection results of the heating tube.

[0012] Secondly, this application also proposes a step-by-step assembly system for heating plate components based on a rotary device, used to perform the step-by-step assembly method for heating plate components based on a rotary device as described above, comprising: A rotary table-type equipment with workstations G1 to G8 arranged around it; A load-bearing beam extending radially is provided between workstations G1 and G8, and between workstations G4 and G5; A steel bowl loading module is provided at station G1 of the load-bearing beam, a finished product unloading module is provided at station G8, and a positioning component loading module is provided at station G5.

[0013] In some possible implementations, the central positioning component is fed by a vibratory feeder, and the positioning component loading module is a linear loading robot configured to press the central positioning component into the through hole in the middle of the heat-conducting plate from top to bottom, so that the heat-conducting plate is radially limited and axially aligned relative to the steel bowl.

[0014] In some possible implementations, a detection beam extends upward from the upper end of the load-bearing beam and is perpendicularly connected thereto. A first solder paste detection vision device and a second solder paste detection vision device are respectively disposed at both ends of the detection beam, wherein: The first solder paste inspection vision device is used to inspect the solder paste on the bottom of the steel bowl; The second solder paste inspection vision device is used to inspect the solder paste on the bottom of the heat-conducting plate.

[0015] In some possible implementations, a steel bowl conveyor line, a finished product conveyor line, and a heating tube conveyor line are provided outside the workstations G1 and G8; The steel bowl conveyor line and the finished product conveyor line are arranged along the same straight line and are disconnected below the load-bearing beam; The heating tube conveyor line is arranged parallel to the outside of the steel bowl conveyor line and the finished product conveyor line.

[0016] In some possible implementations, the heat-conducting plates are stored in an annular hopper, which is a rotatable material storage device for continuously feeding multiple heat-conducting plates in a stacked and threaded manner and is equipped with a heat-conducting plate visual inspection device. It also includes a steel bowl welding paste application robot located at the upper end of the steel bowl conveyor line, a heat conduction plate loading robot located at the rear end of workstation G3, a heating tube loading robot located at the upper end of the finished product conveyor line, and a heating tube visual inspection device located at the upper end of the heating tube conveyor line. The annular hopper is located between the steel bowl welding paste application robot and the heat-conducting plate loading robot; The heating tube loading robot, the steel bowl welding paste application robot, and the heat conduction plate loading robot are all multi-degree-of-freedom industrial robots.

[0017] In some possible implementations, a heat-conducting plate solder paste application module is also provided at the rear end of station G6. The heat-conducting plate solder paste application module is a linear dispensing mechanism, including a slide that moves along a dual-axis direction and a solder paste nozzle fixed thereon, for applying solder paste to the bottom of the heat-conducting plate along a preset trajectory. Attached Figure Description

[0018] Figure 1 This is a top view of the step-by-step assembly system for the heating plate assembly based on a rotary device in this application; Figure 2 This is an overall schematic diagram of the heating plate assembly in this application; Figure 3 This is a schematic diagram from the feeding side of the step-by-step assembly system for the heating plate component based on a rotary device in this application; Figure 4 This is a schematic diagram from the unloading side of the step-by-step assembly system for the heating plate component based on a rotary device in this application; Figure 5 This is a schematic diagram of the fixture for the heating plate assembly in this application. Detailed Implementation

[0019] The following examples further illustrate the features of this application and other related features in detail, so as to facilitate understanding by those skilled in the art: It should be noted that the terms “front,” “back,” “left,” “right,” “up,” and “down” used in the following description refer to the directions in the attached diagrams, while the terms “bottom surface,” “top surface,” “inner,” and “outer” refer to the directions toward or away from the geometric center of a specific component, respectively.

[0020] Furthermore, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this case based on the specific circumstances.

[0021] This application relates to a step-by-step assembly method and system for heating plate assemblies based on a rotary device, particularly suitable for the automated assembly of heating plate assemblies in household appliances such as electric kettles. As the core heat source component of the electric kettle, the heating plate assembly's structural design must balance thermal conductivity and mechanical stability.

[0022] like Figure 2 As shown, the heating plate assembly includes a steel bowl 10, a heat-conducting plate 20, a central positioning component 30, and a heating element 40. The bottom of the heat-conducting plate 20 has multiple positioning protrusions 50 extending downwards. The steel bowl 10 is made of stainless steel and is installed upside down on the turntable device during assembly, with its bottom surface facing upwards, to support subsequent components.

[0023] Please refer to the positioning method of the steel bowl 10. Figure 5 Regarding clamping and positioning, the step-by-step assembly system for the heating plate assembly of this application is equipped with a dedicated fixture 600 for stably fixing the steel bowl 10 in each process. The fixture 600 includes a base 610, grippers 620, and a fixing sleeve 630. The base 610 supports the grippers 620 and together with the grippers 620 forms a U-shaped structure. The fixing sleeve 630 can be fitted onto the steel bowl 10, restricting its radial movement. The grippers 620 are pneumatically or electrically driven to clamp the edge of the steel bowl 10 from the side, preventing it from shifting during welding. This fixture has a simple structure, is easy to disassemble, and can adapt to the universal needs of steel bowls of different sizes.

[0024] Further, please refer to Figure 2The heat-conducting plate 20 is made of aluminum alloy and is attached to the bottom of the steel bowl 10, with heat conduction achieved through solder paste. A central positioning component 30 is embedded in the through-hole in the center of the heat-conducting plate 20 and welded in place, ensuring the overall structure's axial and radial alignment accuracy. The heating element 40 is welded to the bottom of the heat-conducting plate 20, with its two leads corresponding to the wiring positions of the kettle base. Positioning protrusions 50 are distributed circumferentially on the inner ring of the heat-conducting plate 20, extending towards its bottom, and are used to engage with the inner wall of the bottom shell during the assembly of the kettle, achieving spatial positioning and anti-rotation functions. In some embodiments, the inner circumference of the positioning protrusions 50 has threaded posts. It should be noted that the opening direction of the heating element 40 and the distribution of the positioning protrusions 50 have a preset correspondence to ensure the reliability of the electrical connection and structural consistency during the final assembly of the entire unit.

[0025] To achieve efficient and high-precision automated assembly of the aforementioned heating plate components, this application proposes a step-by-step assembly system based on a rotary table device. For example... Figure 1 , Figure 3 and Figure 4 As shown, the system centers on a rotary table-type device 500, around which workstations G1 to G8 are arranged in a continuous, cyclical work path. The entire assembly process is divided into two independent cycles: the first cycle completes the loading of the steel bowl 10, the application of solder paste to the steel bowl 10, the placement of the heat-conducting plate 20, the installation and initial welding of the central positioning component 30, the application of solder paste to the bottom of the heat-conducting plate 20, and the pre-installation of the heating element 40; the second cycle, after a one-workstation interval, performs the final laser welding of the heating element 40 and unloading the finished product. This dual-cycle design effectively isolates the thermal impact between the two laser welding processes, preventing deformation of the heat-conducting plate 20 or weld point failure due to continuous heat input, significantly improving product yield and long-term reliability. Furthermore, the first and second cycles are performed one workstation apart; that is, when a workstation performs the first cycle, its adjacent workstation performs the second cycle.

[0026] Furthermore, regarding the overall system structural stability, radially extending load-bearing beams 510 are provided between stations G1 and G8, and between stations G4 and G5 of the rotary equipment 500. Their main function is to serve as the mounting base for the linear feeding robot and to support the upper detection device. In other words, the load-bearing beams 510 span the entire rotary equipment 500.

[0027] Correspondingly, a steel bowl conveyor line 200, a finished product conveyor line 400, and a heating element conveyor line 100 are provided on the outer side of the workstations G1 and G8. The steel bowl conveyor line 200 and the finished product conveyor line 400 are arranged along the same straight line and disconnected below the load-bearing beam 510. The heating element conveyor line 100 is arranged parallel to and outside the steel bowl conveyor line 200 and the finished product conveyor line 400.

[0028] Based on this, a steel bowl loading module 1 is set up at station G1 to pick up the steel bowl from the steel bowl conveyor line 200 and place it on the turntable worktable; a finished product unloading module 8 is set up at station G8 to transfer the assembled heating plate assembly to the finished product conveyor line 400. In addition, a positioning component loading module 4 is set up at station G4 to accurately install the center positioning component 30 into the central through hole of the heat-conducting plate 20. This module adopts a linear loading robot, whose structure includes a guide rail, a motor drive unit and an end effector. It can move accurately in a linear direction and embed the center positioning component 30 into the heat-conducting plate 20 by pressing downward, thereby achieving axial limiting and radial centering of the heat-conducting plate relative to the steel bowl 10, ensuring the stability of subsequent welding. The center positioning component 30 is fed by an independent vibratory feeder 310 and is picked up by the positioning component loading module 4 and installed onto the heat-conducting plate 20. The steel bowl loading module 1, finished product unloading module 8, and positioning component loading module 4 are all mounted on the load-bearing beam 510, achieving stable support and a working environment within a limited space. It should be noted that the steel bowl loading module 1 and the finished product unloading module 8 employ the linear loading robot described above.

[0029] Furthermore, a laser welding module 5 is installed at workstation G5 to perform the initial laser welding of the central positioning component 30 and the heat-conducting plate 20, and to perform the final laser welding of the heating tube 40 and the heat-conducting plate 20 in the second cycle. The laser welding module 5 can be optionally installed on an independent bracket. Laser welding equipment is a common technology in the industry, and will not be described in detail.

[0030] To improve assembly accuracy, the system includes a detection beam 520 extending perpendicularly to the upper end of the load-bearing beam 510. A first solder paste inspection vision device 21 and a second solder paste inspection vision device 61 are installed at each end of the detection beam 520. In other words, the load-bearing beam 510 and the detection beam 520 are perpendicular to each other and spaced apart vertically.

[0031] The first solder paste inspection vision device 21 is located above station G3. It is used to detect the area, shape, and center offset of the solder paste in real time after it is applied to the bottom of the steel bowl 10, preventing poor heat conduction due to insufficient or misaligned solder paste. The second solder paste inspection vision device 61 is located above station G7. It is used to inspect the quality of the solder paste at the bottom of the heat-conducting plate 20, ensuring the uniformity of the welding interface of the heating tube 40. Both vision systems are equipped with high-resolution industrial cameras and ring light sources, enabling image acquisition in reflective metal environments. Combined with edge detection algorithms, they automatically identify the solder paste outline. The detection results are fed back to the control system to achieve automatic rejection or alarm processing of defective products.

[0032] Furthermore, the heat-conducting plates 20 are stored in an annular hopper 300, which is a rotatable, serially connected storage device. Multiple heat-conducting plates 20 are stacked and arranged internally via rods to achieve continuous material supply. The annular hopper 300 is positioned between the steel bowl welding paste application robot 2 and the heat-conducting plate loading robot 3, facilitating material flow. The steel bowl welding paste application robot 2 is located at the upper end of the steel bowl conveyor line 200, and the heat-conducting plate loading robot 3 is located at the rear end of station G3. It also includes a heating tube loading robot 7 located at the upper end of the finished product conveyor line 400 and a heating tube vision inspection device 71 located at the upper end of the heating tube conveyor line 100. The steel bowl welding paste application robot 2, the heat-conducting plate loading robot 3, and the heating tube loading robot 7 are all multi-degree-of-freedom industrial robots with at least six rotary joints (i.e., six-axis robots), enabling flexible movement in three-dimensional space and achieving complex grasping and placement.

[0033] Furthermore, a heat-conducting plate visual inspection device 31 is provided in the annular hopper 300. Before picking up the heat-conducting plate, the heat-conducting plate loading robot 3 first uses the heat-conducting plate visual inspection device 31 to identify the distribution position and circumferential angle of the positioning protrusions 50 on the heat-conducting plate 20, calculates its deviation relative to the preset posture, and then adjusts the posture of the end gripper of the heat-conducting plate loading robot 3 to ensure that when the heat-conducting plate 20 is placed at the bottom of the steel bowl 10, its positioning protrusions 50 are completely matched with the orientation required for the overall assembly. Similarly, before loading the heating tube 40, the system also uses the heating tube visual inspection device 71 to detect its opening direction and dynamically adjusts the path of the heating tube loading robot 7 to avoid welding failure due to incorrect direction. The heating tube visual inspection device 71 and the heat-conducting plate visual inspection device 31 can also adopt the same configuration as the first solder paste inspection visual device 21 described above, which will not be described in detail.

[0034] Furthermore, the heat-conducting plate solder paste application module 6 is located at the rear end of station G6. It is a linear dispensing mechanism, including an XY-axis slide and a solder paste nozzle fixed thereon. This structure, controlled by a program, evenly applies solder paste along a preset trajectory to the bottom of the heat-conducting plate 20, which not only improves the coating accuracy but also avoids the splattering problem that may occur with traditional rotary dispensing. Its XY-axis linkage design allows for flexible adjustment of the solder paste path, suitable for rapid switching between different models of heating plate components.

[0035] The entire assembly process is as follows: In the first cycle, the steel bowl 10 is conveyed by the steel bowl conveyor line 200 to the corresponding station G1, where it is picked up by the steel bowl loading module 1 and placed on the turntable workbench at station G1; subsequently, at station G2, the steel bowl solder paste application robot 2 applies solder paste to its bottom; at station G3, the first solder paste inspection vision device 21 performs solder paste application quality inspection; at station G4, the heat-conducting plate loading robot 3 takes out the heat-conducting plate 20 from the annular hopper 300, and guides it through the vision system... After being precisely placed at the bottom of the steel bowl 10, station G5 uses the positioning component loading module 4 to press and embed the center positioning component 30 into the through hole of the heat-conducting plate 20, completing the initial laser welding; station G6 uses the heat-conducting plate solder paste application module 6 to apply solder paste to the bottom of the heat-conducting plate 20; station G7 uses the second solder paste inspection vision device 61 to inspect the quality of the solder paste; station G8 uses the heating tube loading robot 7 to pre-install the heating tube 40 onto the heat-conducting plate 20 after being visually guided by the heating tube vision inspection device 71. When the turntable rotates to the second revolution, station G5 completes the final laser welding of the heating tube 40 and the heat-conducting plate 20, and station G8 uses the finished product unloading module 8 to transfer the finished product to the finished product conveyor line 400.

[0036] In summary, the step-by-step assembly method and system for the heating plate assembly proposed in this application, by rationally distributing the entire assembly process within two cycles of the rotary equipment 500, naturally separates the two laser welding processes in time and space, effectively avoiding warping or deformation of the heat-conducting plate 20 due to concentrated heat input. This process arrangement is not an isolated combination, but is integrated with a vision guidance mechanism, a multi-degree-of-freedom industrial robot, and a precision clamping structure. Before picking up and placing the heat-conducting plate 20, the heat-conducting plate loading robot 3 dynamically adjusts its posture according to the distribution of the positioning protrusions 50 to ensure precise fit on the bottom plane of the steel bowl 10, thereby achieving reliable mechanical alignment and uniformity of the thermal interface without welding connections.

[0037] Meanwhile, in terms of material conveying, the annular hopper 300 continuously supplies the heat-conducting plate 20 by stacking rods, and in conjunction with the linear feeding robots configured on both sides of the load-bearing beam 510, it not only simplifies the material path, but also forms an efficient logistics closed loop with the steel bowl conveyor line 200, the finished product conveyor line 400 and the heating tube conveyor line 100.

[0038] The inspection beam 520, mounted above the load-bearing beam 510, integrates the first solder paste inspection vision device 21 and the second solder paste inspection vision device 61 into a unified online quality monitoring unit. At workstations G3 and G7, the solder paste condition at the bottom of the steel bowl 10 and the bottom of the heat-conducting plate 20 is evaluated in real time. The entire system thus achieves a high balance between structural compactness, cycle time stability, and assembly precision, not only meeting the efficiency requirements of mass production of electric kettle heating plate components but also fundamentally improving product consistency.

[0039] As stated above, this case protects a step-by-step assembly method and system for heating plate components based on rotary devices, and all technical solutions that are the same as or similar to this case should be considered to fall within the protection scope of this case.

Claims

1. A method of step-by-step assembly of a heating disc assembly based on a carousel-type device, characterized in that, The heat disc assembly comprises: The steel bowl (10) is arranged on the rotating workbench of the rotary table type equipment, the heat conduction plate (20) is attached to the bottom plane of the steel bowl (10), the center positioning member (30) is embedded in the middle through hole of the heat conduction plate (20) and is welded, and the heat generating pipe (40) is welded to the bottom of the heat conduction plate (20); The method is arranged around the rotary table type equipment with stations G1 to G8, and the whole installation process is divided into a first circle and a second circle, wherein: The first circle loads the steel bowl (10) at station G1, applies solder paste to the bottom of the steel bowl (10) at station G2, performs visual inspection of the solder paste at station G3, loads the heat conduction plate (20) at station G4, installs the center positioning member (30) and performs initial laser welding at station G5, applies solder paste to the bottom of the heat conduction plate (20) at station G6, performs visual inspection of the solder paste at station G7, and loads the heat generating pipe (40) at station G8; The second circle performs final laser welding of the heat generating pipe (40) and the heat conduction plate (20) at station G5, and discharges the finished product at station G8; And the first circle operation and the second circle operation are performed at an interval of one station, when a certain station executes the first circle process, the adjacent station executes the second circle process.

2. The carousel-based heat disc assembly step-assembly method of claim 1, wherein, The heat conduction plate (20) is also provided with a plurality of positioning convex columns (50) extending to the bottom, before loading the heat conduction plate (20), the distribution position and the circumferential angle of the positioning convex columns (50) on the heat conduction plate (20) are recognized by a visual system, the pose required for adjusting the heat conduction plate (20) is calculated, and closed loop correction is performed when loading.

3. The carousel-based heat disc assembly step-assembly method of claim 2, wherein, The heat generating pipe (40) is provided with an opening direction corresponding to the distribution position of the positioning convex column (50), before loading the heat generating pipe (40), the opening position of the heat generating pipe (40) to be loaded is recognized by a visual system, the pose required for adjusting the heat generating pipe (40) to be loaded is calculated, and closed loop correction is performed when loading.

4. The carousel-based heat disc assembly step-assembly method of claim 3, wherein, After applying solder paste to the bottom of the heat conduction plate (20), the position of the positioning convex column (50) is detected again by the visual system to determine whether the position is deviated, and the loading path of the heat generating pipe (40) to be loaded is dynamically adjusted in combination with the visual detection result of the heat generating pipe (40).

5. A carousel-based hot disk assembly step assembly system, characterized in that, A rotary table type equipment based heat disc assembly step-by-step assembly method for performing the method according to any one of claims 1 to 4, comprising: A rotary table type equipment (500) is provided with stations G1 to G8 therearound; Between the stations G1 and G8, and between the stations G4 and G5, a load bearing beam (510) extending in the radial direction is arranged; A steel bowl loading module (1) is arranged at the station G1 of the load bearing beam (510), a finished product discharging module (8) is arranged at the station G8, and a positioning member loading module (4) is arranged at the station G5.

6. The carousel-based heat disc assembly step-assembly system of claim 5, wherein, The center positioning member (30) is supplied by a vibrating disc (310), the positioning member loading module (4) is a linear type loading manipulator, and is configured to stamp the center positioning member (30) into the through hole in the middle of the heat conduction plate (20) from top to bottom, so that the heat conduction plate (20) is radially limited and axially centered relative to the steel bowl (10).

7. The carousel-based heat disc assembly step-assembly system of claim 5, wherein, The upper end of the load-bearing beam (510) extends upward and is provided with a detection beam (520) connected vertically thereto, a first solder paste detection visual device (21) and a second solder paste detection visual device (61) are arranged at two ends of the detection beam (520) respectively, wherein: The first solder paste detection visual device (21) is used for detecting the solder paste on the bottom of the steel bowl (10); The second solder paste detection visual device (61) is used for detecting the solder paste on the bottom of the heat-conducting plate (20).

8. The carousel-based heat disc assembly step-assembly system of claim 5, wherein, A steel bowl conveying line (200), a finished product conveying line (400) and a heating tube conveying line (100) are arranged outside the stations G1 and G8; The steel bowl conveying line (200) and the finished product conveying line (400) are arranged along the same straight line and are disconnected below the load-bearing beam (510); The heating tube conveying line (100) is arranged parallel to the outside of the steel bowl conveying line (200) and the finished product conveying line (400).

9. The carousel-based heat disc assembly step-assembly system of claim 8, wherein, The heat-conducting plates (20) are stored in a ring-shaped stock bin (300), the ring-shaped stock bin (300) is a rotatable stock storage device for continuously supplying a plurality of heat-conducting plates (20) in a stacked and rod-penetrated manner and is provided with a heat-conducting plate visual detection device (31); Further comprising a steel bowl solder paste coating robot (2) arranged at the upper end position of the steel bowl conveying line (200), a heat-conducting plate feeding robot (3) arranged at the rear end of the station G3, a heating tube feeding robot (7) arranged at the upper end of the finished product conveying line (400) and a heating tube visual detection device (71) arranged at the upper end position of the heating tube conveying line (100); The ring-shaped stock bin (300) is located between the steel bowl solder paste coating robot (2) and the heat-conducting plate feeding robot (3); The heating tube feeding robot (7), the steel bowl solder paste coating robot (2) and the heat-conducting plate feeding robot (3) are all multi-degree-of-freedom industrial robots.

10. The carousel-based heat disc assembly step-assembly system of claim 5, wherein, Further comprising a heat-conducting plate solder paste coating module (6) arranged at the rear end of the station G6, the heat-conducting plate solder paste coating module (6) is a linear dispensing mechanism, comprising a sliding table moving along a double-axis direction and a solder paste nozzle fixed thereon, for coating solder paste on the bottom of the heat-conducting plate (20) along a preset track.

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