An automatic assembly line for sealed bowls

Abstract

The present invention discloses an automatic assembly line for sealed bowls, comprising: a sealed bowl transportation line for transporting sealed bowls; a gas collecting pipe transportation line for transporting gas collecting pipe assemblies; a lubrication device for spraying lubricating oil on the gas collecting pipe assemblies; a pre-assembly transportation line having tooling plates for storing the tooling with sealed bowls thereon; an assembly transportation line for serving as a bearing platform for the gas collecting pipe assemblies and the sealed bowls and transporting the assembled workpieces to the next process; and a robot device for transferring the sealed bowls on the sealed bowl transportation line to the tooling plates on the pre-assembly transportation line and clamping and transferring the gas collecting pipe assemblies on the gas collecting pipe transportation line to the assembly transportation line to assemble the gas collecting pipe assemblies onto the sealed bowls. The present invention changes the assembly of the sealed bowls from manual assembly to automatic assembly and changes the original distributed operation to an automated assembly line operation, reducing the labor intensity of manual work.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioner accessory assembly lines, and particularly to an automatic assembly line for sealing bowls. Background Art

[0002] Currently, the condensed water in the indoor unit of an air conditioner is generally collected by a sealing bowl and flows through the through holes thereon to a water receiving tray assembly. Finally, the water receiving tray holds the condensed water generated during the operation of the heat exchanger, avoiding air conditioner failures such as circuit failures and water leakage.

[0003] To ensure the sealing performance, the sealing bowl and the gas collecting pipe are assembled by interference fit. Since the sealing bowl is made of nitrile rubber, but its surface has low elasticity, the original assembly method of the sealing bowl is that an employee holds the gas collecting pipe assembly with one hand and the sealing bowl with the other hand, and slowly slips the sealing bowl onto the straight pipe end of the gas collecting pipe assembly and pulls it to a preset positioning place. The design of interference fit results in high labor intensity and low assembly efficiency for employees. Summary of the Invention

[0004] In order to overcome the above-mentioned drawbacks of the prior art, the purpose of the present invention is to provide an automatic assembly line for sealing bowls to solve the problems raised in the above background art.

[0005] The technical solution adopted by the present invention to solve its technical problems is: an automatic assembly line for sealing bowls, comprising:

[0006] A sealing bowl transportation line for transporting sealing bowls;

[0007] A gas collecting pipe transportation line for transporting gas collecting pipe assemblies;

[0008] A lubrication device for spraying lubricating oil when the gas collecting pipe assembly is transported along the gas collecting pipe transportation line through a preset spraying position under the lubrication device;

[0009] A pre-assembly transportation line having a tooling plate for storing the tooling plate with the sealing bowl;

[0010] An assembly transportation line for serving as a bearing platform for the gas collecting pipe assembly and the sealing bowl and transporting the assembled workpiece to the next process;

[0011] A robot device for transferring the sealing bowl on the sealing bowl transportation line to the tooling plate of the pre-assembly transportation line and clamping and transferring the gas collecting pipe assembly on the gas collecting pipe transportation line to the assembly transportation line to assemble the gas collecting pipe assembly onto the sealing bowl.

[0012] As a further improvement of the present invention: the lubrication device is provided with a tooling rack and a spraying assembly. The tooling rack includes a column arranged in the vertical direction and a mounting rack arranged in the horizontal direction. The mounting rack is fixedly connected to the column, and the lower side of the mounting rack is set as the spraying position.

[0013] As a further improvement of the present invention: The spraying assembly includes a spray head, a spraying pump, a filter, an oil tank, and an oil product collection tank. The spray head is fixed on the mounting frame. The spraying pump and the filter are fixed on the column. The oil product collection tank is arranged below the spray head. The filter is connected to the oil product collection tank and the oil tank respectively through pipelines. The spraying pump is connected to the oil tank and the spray head respectively through pipelines. An optoelectronic sensor is also arranged on the mounting frame.

[0014] As a further improvement of the present invention: The discharging end of the pre-assembly transportation line is connected to the feeding end of the assembly transportation line. The pre-assembly transportation line is provided with a pre-assembly roller line and a lifting device. The pre-assembly roller line is installed on the lifting device in a liftable and adjustable manner.

[0015] As a further improvement of the present invention: The lifting device is provided with a motor, a gear set, a coupling, a turbine set, and a lead screw. The lead screw is inserted on the turbine set in a threaded fit manner. The gear set is provided with a first transmission rod, a second transmission rod, a first bevel gear set, a second bevel gear set, and a third bevel gear set. The first bevel gear set is rotationally connected to the motor through the coupling. The first bevel gear is rotatably connected to the second bevel gear set and the third bevel gear set respectively through the first transmission rod. The second bevel gear set and the third bevel gear set are rotationally connected to the turbine set respectively through the second transmission rod to drive the lead screw to drive the pre-assembly roller line to lift up and down.

[0016] As a further improvement of the present invention: The robot device includes an online robot, an insertion robot, and an offline robot. The online robot is used to transfer the tooling plate on the sealing bowl transportation line to the pre-assembly roller line. The insertion robot is used to insert the gas collecting pipe assembly onto the sealing bowl. The offline robot is used to transfer the tooling after the insertion is completed offline.

[0017] As a further improvement of the present invention: The assembly transportation line is provided with a first assembly roller line and a second assembly roller line. The first assembly roller line is used to pre-store the tooling plate with a sealing bowl on the line. The second assembly roller line is used to provide a platform for the insertion robot to insert the sealing bowl and transport the tooling.

[0018] As a further improvement of the present invention: The tooling plate is provided with grooves adapted to the drainage convex platform and the assembly convex platform on the bottom surface of the sealing bowl. Through holes for the insertion of the gas collecting pipe are also arranged in the grooves. Rollers are arranged at the four corners of the tooling plate. The rollers are used to reduce the friction between the tooling plate and the edge of the roller line.

[0019] As a further improvement of the present invention: the automatic assembly line for the sealing bowl further includes a sealing bowl recycling line and a tooling transportation line. The sealing bowl recycling line is used to transport the tooling plate that has been inserted on the second assembly roller line back to the sealing bowl transportation line, and the tooling transportation line is used to transport the tooling combined with the inserted sealing bowl and the gas collecting pipe assembly.

[0020] As a further improvement of the present invention: photoelectric sensors are provided on the sealing bowl transportation line, the gas collecting pipe transportation line, the pre-assembly transportation line and the sealing bowl recycling line for detecting materials.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] 1. In the present invention, the assembly of the sealing bowl is changed from manual assembly to automatic assembly, and the original distributed operation is changed to an automated assembly line operation, reducing the labor intensity of manual work. Lubricating oil is sprayed on the straight pipe section before the gas collecting pipe assembly is loaded to lubricate it, increasing the surface lubricity of the pipeline parts and reducing the difficulty of pipe threading.

[0023] 2. By setting up a lubricating device, lubricating oil is sprayed on the straight pipe section of the gas collecting pipe assembly by a nozzle before loading to increase the surface lubricity of the pipeline parts in the straight pipe section of the gas collecting pipe, reducing the difficulty of pipe threading. Cooperating with the oil collecting tank, the excess sprayed lubricating oil can be collected and the oil can be filtered and recycled.

[0024] 3. Grooves adapted to the drainage bosses and assembly bosses on the bottom surface of the sealing bowl are provided on the tooling plate, and through holes are provided on the tooling plate. The use of the tooling plate makes the placement of the sealing bowl more stable, with accurate positioning during pipe threading, and rollers are added to the four corners of the tooling plate to reduce friction.

[0025] 4. By designing the sealing bowl recycling line, the tooling plate of the sealing bowl is recycled, and the entire line body has cyclicity. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic wireframe diagram of the overall structure of the present invention.

[0027] Figure 2 It is a schematic diagram of the overall structure of the present invention.

[0028] Figure 3 It is a schematic diagram of the structure of the lubricating device of the present invention.

[0029] Figure 4 It is a schematic diagram of the structure of the pre-assembly transportation line of the present invention.

[0030] Figure 5 It is a schematic diagram of the structure of the lifting device of the present invention.

[0031] Figure 6 It is a side view of the structure of the pre-assembly transportation line of the present invention.

[0032] Reference numerals in the figure: 1, sealing bowl transportation line; 11, sealing bowl; 2, gas collecting pipe transportation line; 21, gas collecting pipe assembly; 3, lubricating device; 31, mounting bracket; 32, column; 33, spray head; 34, spray pump; 35, filter; 36, fuel tank; 37, oil collection box; 4, pre-assembly transportation line; 41, pre-assembly roller line; 42, lifting device; 421, motor; 422, coupling; 423, turbine group; 424, lead screw; 425, first transmission rod; 426, second transmission rod; 427, first bevel gear set; 428, second bevel gear set; 429, third bevel gear set; 5, assembly transportation line; 51, first assembly roller line; 52, second assembly roller line; 6, robot device; 61, online robot; 62, insertion robot; 63, offline robot; 7, sealing bowl recycling line; 8, tooling transportation line; 9, tooling plate. Detailed implementation manners

[0033] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0034] The present invention will be further described below in conjunction with the drawings and embodiments:

[0035] The present invention provides an automatic assembly line for a sealing bowl 11, as Figure 1 - Figure 2 shown, including:

[0036] The sealing bowl transportation line 1, which is used to transport the sealing bowl 11;

[0037] The gas collecting pipe transportation line 2, which is used to transport the gas collecting pipe assembly 21;

[0038] The lubricating device 3, which is used to spray lubricating oil when the gas collecting pipe assembly 21 is transported along the gas collecting pipe transportation line 2 through a preset spraying position under the lubricating device 3;

[0039] The pre-assembly transportation line 4, which has a tooling plate 9 thereon and is used to store the tooling plate 9 with the sealing bowl 11;

[0040] The assembly transportation line 5, which is used as a loading platform for the gas collecting pipe assembly 21 and the sealing bowl 11 and transports the assembled work to the next process;

[0041] The robot device 6 is used to transfer the sealed bowl 11 on the sealed bowl transportation line 1 to the tooling plate 9 on the pre-assembly transportation line 4, and clamp and transfer the gas collecting pipe assembly 21 on the gas collecting pipe transportation line 2 to the assembly transportation line 5 to assemble the gas collecting pipe assembly 21 onto the sealed bowl 11.

[0042] Through the setting of the above technical solution, in the present invention, the assembly of the sealed bowl 11 is changed from manual assembly to automatic assembly, and the original distributed operation is changed to an automated assembly line operation, reducing the labor intensity. Before the gas collecting pipe assembly 21 is loaded, lubricating oil is sprayed on the straight pipe section for lubrication, increasing the surface lubricity of the pipeline parts and reducing the difficulty of pipe threading.

[0043] The processing objects of the present invention are the sealed bowl 11 and the gas collecting pipe assembly 21. The sealed bowl 11 is transported along the sealed bowl transportation line 1, and the robot device clamps and loads the sealed bowl 11 onto the tooling plate 9 on the pre-assembly transportation line 4. The gas collecting pipe assembly 21 is transported along the gas collecting pipe transportation line 2, and the gas collecting pipe assembly 21 is press-fitted and inserted onto the sealed bowl 11 on the assembly transportation line 5. When the gas collecting pipe assembly 21 passes through the lubricating device 3 during transportation on the gas collecting pipe transportation line 2, it will be sprayed with lubricating oil to increase the lubricity of the gas collecting pipe assembly 21.

[0044] Further, as Figure 2 shown, the pipeline structure is omitted in this drawing. The lubricating device 3 of the present invention is provided with a tooling rack and a spraying assembly. The tooling rack includes a column 32 arranged in the vertical direction and a mounting rack 31 arranged in the horizontal direction. The mounting rack 31 is fixedly connected to the column 32, and the lower side of the mounting rack 31 is set as the spraying position. Usually, the lubricating device 3 is arranged on one side of the gas collecting pipe transportation line 2, and the gas collecting pipe assembly 21 completes spraying lubrication at the spraying position of the lubricating device 3. When spraying, it is necessary to ensure the lubricity requirement of the gas collecting pipe assembly 21. When spraying, a large area needs to be sprayed, and there will be a waste phenomenon of excess lubricating oil. A collecting device is arranged below the spraying position to reduce waste and achieve lubricating oil circulation at the same time.

[0045] Specifically, the spraying assembly includes a spray head 33, a spray pump 34, a filter 35, an oil tank 36 and an oil product collection tank 37. The spray head 33 is fixed on the mounting frame 31, the spray pump 34 and the filter 35 are fixed on the column 32, the oil product collection tank 37 is arranged below the spray head 33, the filter 35 is connected to the oil product collection tank 37 and the oil tank 36 respectively through pipelines, the spray pump 34 is connected to the oil tank 36 and the spray head 33 respectively through pipelines, and a photoelectric sensor is further arranged on the mounting frame 31. The spray pump 34 pumps the lubricating oil in the oil tank 36, sprays it onto the straight pipe section of the gas collecting pipe assembly 21 through the spray head 33, increases the lubricity of the surface of the straight pipe section of the gas collecting pipe assembly 21, and facilitates the operation of the candidate inserted sealing bowl 11; the redundant lubricating oil accumulates in the oil product collection tank 37, and when the liquid level reaches the recovery position of the oil product collection tank 37, it flows back to the oil tank 36 through the filter 35, realizing the recycling of the lubricating oil, and only need to supplement the lubricating oil before using on the assembly line; the photoelectric sensor here is used to detect the passing of the gas collecting pipe assembly 21. When detecting the passing of the gas collecting pipe assembly 21, it controls the spray head 33 to spray lubricating oil onto the straight pipe section of the gas collecting pipe assembly 21, and when there is no gas collecting pipe assembly 21 passing, the spray head 33 is closed.

[0046] Further, the discharging end of the preloading transportation line 4 of the present invention is connected to the loading end of the assembly transportation line 5. The preloading transportation line 4 is provided with a preloading roller line 41 and a lifting device 42, and the preloading roller line 41 is installed on the lifting device 42 in a liftable and adjustable manner. The preloading transportation line 4 is a production line for the previous process before the sealing bowl 11 is loaded onto the assembly transportation line 5. It stores and transports the sealing bowls 11 in groups. If the preloading transportation line 4 is not provided and the sealing bowls 11 are directly loaded onto the assembly transportation line 5 from the sealing bowl transportation line 1, it is easy to have the phenomenon of material jamming of the sealing bowls 11 on the production line, reducing the insertion efficiency of the sealing bowls 11. However, setting the preloading transportation line 4 can well solve the problem of material jamming, realize the grouped loading of the sealing bowls 11, and effectively improve the insertion efficiency of the sealing bowls 11. In order to facilitate the loading of the sealing bowls 11 onto the sealing bowl transportation line 1, a height limit for the sealing bowl transportation line 1 is set. At the same time, the height of the assembly transportation line 5 is higher than that of the sealing bowl transportation line 1, and a lifting device 42 needs to be arranged below the preloading transportation line 4 to complete the lifting of the preloading roller line 41.

[0047] Specifically, as Figure 5As shown, the lifting device 42 is provided with a motor 421, a gear set, a coupling 422, a turbine set 423 and a lead screw 424. The lead screw 424 is inserted on the turbine set 423 in a threaded fit manner. The gear set is provided with a first transmission rod 425, a second transmission rod 426, a first bevel gear set 427, a second bevel gear set 428 and a third bevel gear set 429. The first bevel gear set 427 is rotationally connected to the motor 421 through the coupling 422. The first bevel gear is rotatably connected to the second bevel gear set 428 and the third bevel gear set 429 respectively through the first transmission rod 425. The second bevel gear set 428 and the third bevel gear set 429 are rotationally connected to the turbine set 423 through the second transmission rod 426 respectively to drive the lead screw 424 to drive the pre-installed roller line 41 to move up and down. A protective cover is further provided on the lifting device 42. The motor 421, the gear set and the coupling 422 are installed in the protective cover. The motor 421 drives the first bevel gear set 427 to rotate through the coupling 422. The first transmission rod 425 of the first bevel gear set 427 rotates and is transmitted through the second bevel gear set 428 and the third bevel gear set 429, thereby driving the turbine set 423 to rotate, so that the lead screw rotates. The rotation of the lead screw drives the pre-installed roller line 41 to move up and down, thus realizing the transfer of the tooling plate 9 between the upper and lower tracks.

[0048] Further, as Figure 2 shown, the robot device 6 of the present invention includes an on-line robot 61, an insertion robot 62 and an off-line robot 63. The on-line robot 61 is used to transfer the tooling plate 9 on the sealed bowl transportation line 1 to the pre-installed roller line 41. The insertion robot 62 is used to insert the gas collecting pipe assembly 21 onto the sealed bowl 11. The off-line robot 63 is used to transfer the tooling after the insertion is completed off-line. The on-line robot 61, the insertion robot 62 and the off-line robot 63 are all provided with robotic arms and fixtures. The fixtures are rotatably connected to the robotic arms. When inserting the gas collecting pipe assembly 21 onto the sealed bowl 11, it is necessary to rotate the gas collecting pipe assembly 21 in the horizontal state to the vertical state to achieve the insertion.

[0049] Further, as Figure 2As shown in the figure, the assembly and transportation line 5 of the present invention is provided with a first assembly roller line 51 and a second assembly roller line 52. The first assembly roller line 51 is used to pre-store the tooling plate 9 with the sealing bowl 11 on the line. The second assembly roller line 52 is used to provide a platform for the insertion robot 62 to insert the sealing bowl 11 and transport the tooling. One end of the first assembly roller line 51 is connected to the pre-assembly transportation line 4, and the other end of the first assembly roller line 51 is connected to the second assembly roller line 52. The first assembly roller line 51 is for the secondary pre-storage of the sealing bowl 11. Since the insertion method of the gas collecting pipe assembly 21 with interference fit is relatively slow, and the feeding speed is relatively fast. When the pre-assembly transportation line 4 completes the pre-storage grouping and feeding, it is necessary to load the sealing bowl 11 onto the first assembly roller line 51. Since it is grouped feeding, a preset time is set in the grouping interval, so that the next material can reach the insertion position on the line, and the sealing bowl 11 of the previous grouping has been inserted, so that the insertion can be continuous without interruption.

[0050] Further, the tooling plate 9 of the present invention is provided with grooves adapted to the drainage bosses and assembly bosses on the bottom surface of the sealing bowl 11. Through holes for the insertion of the gas collecting pipe are also provided in the grooves. Rollers are provided at the four corners of the tooling plate 9, and the rollers are used to reduce the friction between the tooling plate 9 and the edge of the roller line. The use of the tooling plate 9 makes the placement of the sealing bowl 11 more stable, the positioning is accurate during pipe threading, and rollers are added at the four corners of the tooling plate 9 to reduce the friction force.

[0051] Further, the present invention further includes a sealing bowl recovery line 7 and a tooling transportation line 8. The sealing bowl recovery line 7 is used to transport the tooling plate 9 after the insertion on the second assembly roller line 52 back to the sealing bowl transportation line 1. The tooling transportation line 8 is used to transport the tooling combined with the inserted sealing bowl 11 and the gas collecting pipe assembly 21. The structure of the sealing bowl recovery line 7 is the same as that of the pre-assembly transportation line 4. By designing the sealing bowl recovery line 7, the tooling plate 9 of the sealing bowl 11 is recycled, and the whole line body has cyclicity.

[0052] The sealing bowl transportation line 1, the gas collecting pipe transportation line 2, the pre-assembly transportation line 4, and the sealing bowl recycling line 7 are all equipped with photoelectric sensors for detecting materials. Specifically, when the photoelectric sensor on the sealing bowl transportation line 1 detects the sealing bowl 11 material, the sealing bowl transportation line 1 stops running; when the photoelectric sensor on the gas collecting pipe transportation line 2 detects the gas collecting pipe assembly 21 material, the gas collecting pipe transportation line 2 stops running; when the photoelectric sensor on the pre-assembly transportation line 4 detects the sealing bowl 11 material, the driving lifting device 42 transports to raise the pre-assembly roller line 41. After the raising is completed, the pre-assembly roller line 41 is driven to run so that the sealing bowl 11 is loaded onto the first assembly roller line 51. After the loading is completed, the driving lifting device 42 descends; when the photoelectric sensor on the sealing bowl recycling line 7 detects the tooling plate 9 material, the driving lifting device 42 transports to lower the pre-assembly roller line 41. After the lowering is completed, the pre-assembly roller line 41 is driven to run so that the tooling plate 9 flows back to the sealing bowl transportation line 1. After the flowing back is completed, the driving lifting device 42 ascends.

[0053] In the present invention, the assembly of the sealing bowl 11 is changed from manual assembly to automatic assembly, and the original distributed operation is changed to an automated assembly line operation, reducing the intensity of manual work. Before the gas collecting pipe assembly 21 is loaded, lubricating oil is sprayed on the straight pipe section for lubrication, increasing the surface lubricity of the pipeline components and reducing the difficulty of pipe threading. Specifically, by setting the lubricating device 3, before the gas collecting pipe assembly 21 is loaded, the straight pipe section is sprayed with lubricating oil by the nozzle 33 for lubrication, increasing the surface lubricity of the pipeline components in the straight pipe section of the gas collecting pipe and reducing the difficulty of pipe threading. In cooperation with the oil collecting tank 37, the excess sprayed lubricating oil can be collected and the oil can be filtered and recycled; and the tooling plate 9 is provided with grooves adapted to the drainage bosses and assembly bosses on the bottom surface of the sealing bowl 11, and through holes are provided on the tooling plate 9. The use of the tooling plate 9 makes the placement of the sealing bowl 11 more stable, with accurate positioning during pipe threading, and rollers are added at the four corners of the tooling plate 9 to reduce friction; by designing the sealing bowl recycling line 7, the tooling plate 9 of the sealing bowl 11 is recycled, and the entire line body has recyclability.

[0054] In summary, after those of ordinary skill in the art read the present invention document, various other corresponding transformation schemes made without creative mental labor according to the technical solutions and technical concepts of the present invention all fall within the scope protected by the present invention.

Claims

1. An automatic assembly line for sealed bowls, characterized in that, Including: A sealed bowl transportation line for transporting sealed bowls; A gas collecting pipe transportation line for transporting gas collecting pipe assemblies; A lubricating device for spraying lubricating oil when the gas collecting pipe assembly is transported along the gas collecting pipe transportation line past a preset spraying position under the lubricating device; A preloading transportation line on which there is a tooling plate for storing the tooling plate with the sealed bowl; An assembly transportation line for serving as a loading platform for the gas collecting pipe assembly and the sealed bowl and transporting the assembled workpiece to the next process; A robot device for transferring the sealed bowl on the sealed bowl transportation line to the tooling plate on the preloading transportation line and clamping and transferring the gas collecting pipe assembly on the gas collecting pipe transportation line to the assembly transportation line to assemble the gas collecting pipe assembly onto the sealed bowl; The lubricating device is provided with a tooling rack and a spraying assembly. The tooling rack includes a vertical column arranged in the vertical direction and a mounting rack arranged in the horizontal direction. The mounting rack is fixedly connected to the column, and the lower side of the mounting rack is set as the spraying position; The discharging end of the preloading transportation line is connected to the loading end of the assembly transportation line. The preloading transportation line is provided with a preloading roller line and a lifting device, and the preloading roller line is installed on the lifting device in a liftable and adjustable manner.

2. The automatic assembly line for a sealed bowl according to claim 1, wherein The spraying assembly includes a nozzle, a spraying pump, a filter, an oil tank, and an oil product collecting box. The nozzle is fixed on the mounting rack, the spraying pump and the filter are fixed on the column, the oil product collecting box is arranged under the nozzle, the filter is connected to the oil product collecting box and the oil tank respectively through pipelines, the spraying pump is connected to the oil tank and the nozzle respectively through pipelines, and an optoelectronic sensor is also arranged on the mounting rack.

3. The automatic assembly line of a sealed bowl according to claim 1, wherein The lifting device is provided with a motor, a gear set, a coupling, a turbine set, and a lead screw. The lead screw is inserted on the turbine set in a threaded fit manner. The gear set is provided with a first transmission rod, a second transmission rod, a first bevel gear set, a second bevel gear set, and a third bevel gear set. The first bevel gear set is rotationally connected to the motor through the coupling, and the first bevel gear is rotatably connected to the second bevel gear set and the third bevel gear set respectively through the first transmission rod. The second bevel gear set and the third bevel gear set are respectively rotationally connected to the turbine set through the second transmission rod to drive the lead screw to drive the preloading roller line to move up and down.

4. The automatic assembly line for a sealed bowl according to claim 1, wherein The robot device includes an online robot, an insertion robot, and an offline robot. The online robot is used to transfer the tooling plate on the sealed bowl transportation line to the preloading roller line. The insertion robot is used to insert the gas collecting pipe assembly onto the sealed bowl. The offline robot is used to transfer the tooling after insertion offline.

5. The automatic assembly line of a sealed bowl according to claim 1, characterized in that, The assembly transportation line is provided with a first assembly roller line and a second assembly roller line. The first assembly roller line is used to pre-store the tooling plate with the sealed bowl on the line. The second assembly roller line is used to provide a platform for the insertion robot to insert the sealed bowl and transport the tooling.

6. The automatic assembly line of a sealed bowl according to claim 1, wherein The tooling plate is provided with grooves adapted to the drainage convex platform and the assembly convex platform on the bottom surface of the sealed bowl. Through holes for inserting the gas collecting pipe are also arranged in the grooves. Rollers are arranged at the four corners of the tooling plate, and the rollers are used to reduce the friction between the tooling plate and the edge of the roller line.

7. The automatic assembly line for a sealed bowl according to claim 1, characterized in that, The automatic assembly line for the sealed bowl further includes a sealed bowl recycling line and a tooling transportation line. The sealed bowl recycling line is used to transport the tooling plate that has been inserted on the second assembly roller line back to the sealed bowl transportation line, and the tooling transportation line is used to transport the tooling with the inserted sealed bowl and the gas collecting pipe assembly combined.

8. The automatic assembly line for a sealed bowl according to claim 7, characterized in that, Photoelectric sensors are provided on the sealed bowl transportation line, the gas collecting pipe transportation line, the pre-assembly transportation line, and the sealed bowl recycling line for detecting materials.

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