Range hood air duct vortex housing intelligent production line

Abstract

The present invention discloses an intelligent production line for an air duct vortex casing of a range hood, comprising a conveyor line and a limiting assembly; the conveyor line: on its outer side surface, from right to left, are arranged in sequence a motor bracket riveting station, an air duct bracket riveting station, a first robot, a panel pressing and positioning device, a panel rolling and edging device, a combined riveting device, an air outlet flange riveting station, an oil receiving tray riveting station and a second robot, and the upper surface of the air duct bracket riveting station is provided with a holding assembly; the limiting assembly: arranged in the middle of the frame of the conveyor line; wherein: the input ends of the conveyor line, the first robot and the second robot are all electrically connected to the output end of the external controller, the intelligent production line for the air duct vortex casing of the range hood is convenient for clamping and fixing the vortex casing bottom plate, and can play a limiting role in the transportation of the pallet, thereby facilitating the subsequent intelligent production of the air duct vortex casing of the range hood, and having high production efficiency for the air duct vortex casing of the range hood.

Description

Technical Field

[0001] The present invention relates to the technical field of range hood air duct vortex casing production, and specifically to an intelligent production line for range hood air duct vortex casings. Background Art

[0002] A range hood, also known as an exhaust hood, is a kitchen appliance that purifies the kitchen environment. It is installed above the kitchen stove and can quickly extract the waste from stove combustion and the oil smoke generated during cooking that is harmful to the human body and discharge them outdoors. The volute assembly is a key component that affects the suction (air volume), noise, and ease of cleaning of the range hood. Currently, during the production of the air duct volute of the range hood, most of the components of the air duct volute are manually assembled and installed through different equipment to form the air duct volute. The degree of intelligence in the production of the air duct volute is low, resulting in low overall production efficiency of the air duct volute and inconvenience in use. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide an intelligent production line for the air duct vortex casing of the range hood, which is convenient for clamping and fixing the vortex casing bottom plate, and can play a limiting role in the transportation of the pallet, thereby facilitating the subsequent intelligent production of the air duct vortex casing of the range hood, and can also ensure the accuracy of the subsequent vortex casing processing. It has high production efficiency for the air duct vortex casing of the range hood and can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: an intelligent production line for a range hood air duct volute, comprising a conveying line and a limiting assembly;

[0005] Conveyor line: On its outer side, from right to left, there are placed the motor bracket riveting station, the air duct bracket riveting station, the first robot, the enclosure pressing and positioning equipment, the enclosure rolling and edge wrapping equipment, the combined riveting equipment, the air outlet flange riveting station, the oil pan riveting station and the second robot. The upper surface of the air duct bracket riveting station is provided with a holding component.

[0006] Limiting assembly: set in the middle of the frame of the conveyor line;

[0007] Among them: the input ends of the conveyor line, the first robot and the second robot are all electrically connected to the output end of the external controller, which is convenient for clamping and fixing the vortex casing bottom plate, and can also play a limiting role in the transportation of the pallet, which is convenient for the subsequent intelligent production of the range hood air duct vortex casing, and can also ensure the accuracy of subsequent vortex casing processing, which has high production efficiency for the range hood air duct vortex casing.

[0008] Furthermore, an industrial camera is provided in the upper middle part of the conveyor line, and the output end of the industrial camera is electrically connected to the input end of the external controller, so as to facilitate monitoring and photographing the state of the vortex casing at the upper end of the conveyor line and facilitate subsequent processing of the vortex casing.

[0009] Furthermore, the limiting assembly includes a mounting frame, a driving rod, a limiting plate and a convex strip. The mounting frame is arranged in the middle of the frame body of the conveyor line. The middle part of the mounting frame is rotatably connected with the driving rod and the limiting plate respectively. The right end of the driving rod is rotatably connected to the U-shaped seat on the bottom surface of the limiting plate through a pin shaft. The center of the bottom surface of the support plate of the conveyor line is provided with a convex strip that cooperates with the limiting plate, which facilitates the limited transportation of the support plate inside the conveyor line.

[0010] Furthermore, the driving rod includes a telescopic rod, a sliding sleeve, a spring and an electromagnet. The sliding sleeve rotates in the middle of the mounting frame. The telescopic rod is slidably connected inside the sliding sleeve. The right end of the telescopic rod is rotatably connected to the U-shaped seat on the bottom surface of the limit plate. The inner bottom surface of the sliding sleeve is provided with an electromagnet that cooperates with the telescopic rod. The outer side surface of the telescopic rod is provided with a spring. The spring is located inside the sliding sleeve. The input end of the electromagnet is electrically connected to the output end of the external controller to facilitate driving the limit plate to rotate.

[0011] Furthermore, a limiting ring is provided on the outer side of the telescopic rod, and the limiting ring is located inside the sliding sleeve. The right end of the spring contacts the limiting ring, which limits the telescopic rod.

[0012] Furthermore, a positioning plate is provided at the center of the support plate of the conveying line, and a magnet is provided in the groove on the upper end of the step surface of the positioning plate, which can play a positioning role in the conveying of the volute bottom plate.

[0013] Furthermore, the pressing assembly includes a pressing rod, a placing platform and an internal threaded sleeve. The placing platform is arranged in the middle of the upper surface of the riveting platform of the air duct bracket. The circular holes evenly arranged at the edge of the placing platform are movably inserted with pressing rods, and the outer side surfaces of the pressing rods are provided with limit blocks. The outer side surfaces of the placing platform are evenly provided with limit ports that cooperate with the limit blocks. The outer side surfaces of the placing platform are evenly rotatably connected with internal threaded sleeves. The lower ends of the pressing rods are respectively threadedly connected with the vertically corresponding internal threaded sleeves, which is convenient for pressing and fixing the bottom plate of the vortex casing.

[0014] Furthermore, the lower end of the outer side surface of the placing table is rotatably connected to a gear ring, and the lower end of the outer side surface of the internal threaded sleeve is provided with a gear meshing with the gear ring. A motor is provided on the bottom surface of the duct bracket riveting table, and the output shaft of the motor passes through the circular hole on the surface of the duct bracket riveting table and is provided with a driving gear at the upper end. The driving gear is meshed with the gear ring, and the input end of the motor is electrically connected to the output end of the external controller to provide driving force for clamping the vortex casing bottom plate.

[0015] Furthermore, it also includes a fence, which is located on the outside of the conveyor line to protect the internal structure.

[0016] Compared with the prior art, the beneficial effects of the present invention are: the intelligent production line of the range hood air duct vortex housing has the following advantages:

[0017] 1. The first robot places the welded vortex casing bottom plate on the upper surface of the placement table at the upper end of the rivet table of the air duct bracket. The external controller controls the motor to work, drives the gear ring to rotate by driving the gear, and then drives the internal threaded sleeve to rotate synchronously through the gear meshing with the gear ring. While the internal threaded sleeve rotates, it drives the pressure rod connected to the internal thread of the internal threaded sleeve to rotate synchronously with the internal threaded sleeve. When the pressure rod rotates to a certain angle, the limit block on the outer side of the pressure rod contacts the inner wall of the limit port on the outer side of the placement table to limit the rotation of the pressure rod. As the internal threaded sleeve rotates, the pressure rod is driven downward so that the upper end of the pressure rod cooperates with the vortex casing bottom plate to press and fix the vortex casing bottom plate, which is convenient for subsequent riveting of the vortex casing bottom plate.

[0018] 2. The vortex shell bottom plate of the range hood air duct is placed on the upper surface of the motor bracket riveting table, and then the external controller controls the first robot to work and rivet the motor bracket to the appropriate position of the vortex shell bottom plate. Then the first robot places the welded vortex shell bottom plate on the upper surface of the placement table at the upper end of the air duct bracket riveting table. The first robot works to rivet the air duct bracket to the upper end of the vortex shell bottom plate. The external controller controls the conveyor line to work and convey the vortex shell bottom plate. When the vortex shell bottom plate is conveyed to the enclosure pressing and positioning device, the enclosure is pressed and positioned by the enclosure pressing and positioning device. When the vortex shell bottom plate is conveyed to the enclosure When the plate is rolled and edged by the enclosure rolling and edge wrapping equipment, the enclosure is rolled and edged by the enclosure rolling and edge wrapping equipment. When the vortex shell bottom plate is transported to the combined riveting equipment, the enclosure is riveted by the combined riveting equipment. When the vortex shell bottom plate moves to the air outlet flange riveting station, the corresponding second robot works to rivet the air outlet flange of the vortex shell bottom plate. When the vortex shell bottom plate moves to the oil collecting pan riveting station, the corresponding second robot works to rivet the oil collecting pan of the vortex shell bottom plate, so that the range hood air duct vortex shell is formed, which is convenient for the intelligent production of the range hood air duct vortex shell and has high production efficiency for the range hood air duct vortex shell.

[0019] 3. When the conveyor line is conveying the volute casing, the telescopic rod extends along the sliding sleeve under the elastic force of the spring, so that the right end of the limit plate rotatably connected to the telescopic rod tilts upward. When the convex strip on the bottom surface of the conveyor line tray contacts the right end of the limit plate, the conveyor line tray can be limited. When the conveyor line tray needs to move, the external controller controls the electromagnet to work, adsorb the telescopic rod, and make the telescopic rod shrink along the sliding sleeve, thereby tilting the left end of the limit plate upward. At this time, the tray inside the conveyor line continues to be conveyed to the left until the left end of the limit plate contacts the convex strip on the bottom surface of the tray, which can limit the conveyance of the tray and ensure the accuracy of the subsequent range hood duct volute casing processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the partial structure of the limiting component of the present invention;

[0022] Figure 3 Schematic diagram of the internal cross-sectional structure of the driving rod of the present invention;

[0023] Figure 4 This is a schematic diagram of the upper end structure of the riveted platform of the air duct bracket of the present invention;

[0024] Figure 5 It is a schematic diagram of the internal cross-sectional structure of the pressing assembly of the present invention.

[0025] In the figure: 1 conveyor line, 2 limit assembly, 21 mounting frame, 22 drive rod, 221 telescopic rod, 222 sliding sleeve, 223 limit ring, 224 spring, 225 electromagnet, 23 limit plate, 24 convex strip, 3 motor bracket riveting station, 4 air duct bracket riveting station, 5 holding assembly, 51 pressure rod, 511 limit block, 52 placement table, 53 internal thread sleeve, 54 gear, 55 gear ring, 6 first robot, 7 enclosure pressing and positioning equipment, 8 enclosure rolling and edging equipment, 9 combined riveting equipment, 10 air outlet flange riveting station, 11 oil pan riveting station, 12 second robot, 13 fence, 14 industrial camera, 15 positioning plate, 16 magnet, 17 motor, 18 drive gear. Implementation Method

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1-5 , the present invention provides a technical solution: an intelligent production line for a range hood air duct vortex housing, comprising a conveyor line 1 and a limiting component 2;

[0028] Conveyor line 1: On its outer side, from right to left, there are placed a motor bracket riveting station 3, an air duct bracket riveting station 4, a first robot 6, a panel pressing and positioning device 7, a panel rolling and edging device 8, a combined riveting device 9, an air outlet flange riveting station 10, an oil pan riveting station 11 and a second robot 12. The upper surface of the air duct bracket riveting station 4 is provided with a holding assembly 5, which includes a pressure rod 51, a placement table 52 and an internal threaded sleeve 53. The placement table 52 is arranged in the middle of the upper surface of the air duct bracket riveting station 4. Pressure rods 51 are movably inserted into the circular holes evenly arranged on the edge of the placement table 52. The outer side of the pressure rod 51 is provided with a limit block 511. The outer side of the placement table 52 is evenly provided with a limit opening that cooperates with the limit block 511. The outer side of the placement table 52 The side surfaces are evenly connected with internal threaded sleeves 53 for rotation, and the lower ends of the pressure rods 51 are respectively threadedly connected with the vertically corresponding internal threaded sleeves 53. The lower end of the outer side surface of the placement platform 52 is rotatably connected with a gear ring 55. The lower ends of the outer side surfaces of the internal threaded sleeves 53 are provided with gears 54 meshing with the gear ring 55. The bottom surface of the air duct bracket riveting platform 4 is provided with a motor 17. The output shaft of the motor 17 passes through the circular hole on the surface of the air duct bracket riveting platform 4 and is provided with a driving gear 18 at the upper end. The driving gear 18 is meshed with the gear ring 55. The bottom plate of the vortex shell of the range hood air duct is placed on the upper surface of the motor bracket riveting platform 3, and then the first robot 6 works to rivet the motor bracket to the appropriate position of the vortex shell bottom plate. Then the first robot 6 places the welded vortex shell bottom plate on the air duct bracket riveting platform 4, the motor 17 is working, and the gear ring 55 is driven to rotate by the driving gear 18, and then the internal threaded sleeve 53 is driven to rotate synchronously by the gear 54 meshing with the gear ring 55. When the internal threaded sleeve 53 rotates, the pressure rod 51 connected with the internal thread of the internal threaded sleeve 53 is driven to rotate synchronously with the internal threaded sleeve 53. When the pressure rod 51 rotates to a certain angle, the limit block 511 on the outer side of the pressure rod 51 contacts the inner wall of the limit opening on the outer side of the placing platform 52, limiting the rotation of the pressure rod 51. As the internal threaded sleeve 53 rotates, the pressure rod 51 is driven downward to make the upper end of the pressure rod 51 cooperate with the volute bottom plate to press and fix the volute bottom plate. Then the first robot 6 works to rivet the air duct bracket to the upper end of the volute bottom plate. After the riveting is completed, The motor 17 drives the gear ring 55 to rotate in the opposite direction through the driving gear 18, thereby resetting the pressure rod 51. Then the first robot 6 places the riveted volute bottom plate on the upper end of the pallet of the conveyor line 1. The conveyor line 1 works to convey the volute bottom plate. When the volute bottom plate is conveyed to the enclosure pressing and positioning device 7, the enclosure is pressed and positioned by the enclosure pressing and positioning device 7. When the volute bottom plate is conveyed to the enclosure rolling and edge wrapping device 8, the enclosure is rolled and edged by the enclosure rolling and edge wrapping device 8. When the volute bottom plate is conveyed to the combined riveting device 9, the enclosure is riveted by the combined riveting device 9. When the volute bottom plate moves to the air outlet flange riveting station 10, the corresponding second robot 12 works to rivet the air outlet flange of the volute bottom plate.When the volute bottom plate moves to the oil pan riveting station 11, the corresponding second robot 12 works to rivet the oil pan of the volute bottom plate to form the range hood air duct volute;

[0029] Limiting assembly 2: It is set in the middle of the frame of the conveyor line 1. The limiting assembly 2 includes a mounting frame 21, a driving rod 22, a limiting plate 23 and a convex strip 24. The mounting frame 21 is set in the middle of the frame of the conveyor line 1. The middle of the mounting frame 21 is rotatably connected with the driving rod 22 and the limiting plate 23. The right end of the driving rod 22 is rotatably connected to the U-shaped seat on the bottom surface of the limiting plate 23 through a pin. The center of the bottom surface of the support plate of the conveyor line 1 is provided with a convex strip 24 that cooperates with the limiting plate 23. The driving rod 22 includes a telescopic rod 2 21, a sleeve 222, a spring 224 and an electromagnet 225, the sleeve 222 rotates in the middle of the mounting frame 21, the interior of the sleeve 222 is slidably connected to the telescopic rod 221, the right end of the telescopic rod 221 is rotatably connected to the U-shaped seat on the bottom surface of the limit plate 23, the inner bottom surface of the sleeve 222 is provided with an electromagnet 225 that cooperates with the telescopic rod 221, the outer side surface of the telescopic rod 221 is provided with a spring 224, the spring 224 is located inside the sleeve 222, and the outer side surface of the telescopic rod 221 is provided with a limit The ring 223, the limiting ring 223 is located inside the sliding sleeve 222, the right end of the spring 224 contacts the limiting ring 223, and a positioning plate 15 is provided at the center of the support plate of the conveyor line 1. The grooves on the upper end of the step surface of the positioning plate 15 are provided with magnets 16 to facilitate the positioning and transportation of the volute. When the conveyor line 1 is conveying the volute, under the elastic force of the spring 224, the telescopic rod 221 extends along the sliding sleeve 222, so that the right end of the limiting plate 23 rotatably connected to the telescopic rod 221 tilts upward. When the convex strip 24 on the bottom surface of the tray contacts the right end of the limit plate 23, the tray on the conveyor line 1 can be limited. When the tray on the conveyor line 1 needs to move, the external controller controls the electromagnet 225 to work, adsorbing the telescopic rod 221, causing the telescopic rod 221 to retract along the sliding sleeve 222, thereby tilting the left end of the limit plate 23 upward. At this time, the tray inside the conveyor line 1 continues to be transported to the left until the convex strip 24 on the bottom surface of the tray contacts the left end of the limit plate 23, which can limit the conveyance of the tray.

[0030] The input ends of the conveyor line 1, the first robot 6, the second robot 12, the electromagnet 225 and the motor 17 are all electrically connected to the output end of the external controller to ensure the normal operation of the circuit.

[0031] Among them: an industrial camera 14 is provided in the upper middle part of the conveyor line 1, and the output end of the industrial camera 14 is electrically connected to the input end of the external controller, which is convenient for monitoring and photographing the state of the vortex shell at the upper end of the conveyor line 1, and is convenient for subsequent processing of the vortex shell.

[0032] Among them, it also includes a fence 13, which is located on the outside of the conveyor line 1 and plays a protective role for the internal structure.

[0033] The working principle of the intelligent production line of the range hood air duct vortex housing provided by the present invention is as follows: the range hood air duct vortex housing bottom plate is placed on the upper surface of the motor bracket riveting platform 3, and then the external controller controls the first robot 6 to work, rivets the motor bracket to the appropriate position of the vortex housing bottom plate, and then the first robot 6 places the welded vortex housing bottom plate on the upper surface of the placement platform 52 at the upper end of the air duct bracket riveting platform 4, and the external controller controls the motor 17 to work, drives the gear ring 55 to rotate through the driving gear 18, and then drives the internal threaded sleeve 53 to rotate synchronously through the gear 54 engaged with the gear ring 55, and the internal threaded sleeve 53 drives the pressure rod 51 connected to the internal thread of the internal threaded sleeve 53 to rotate with the internal threaded sleeve 53 while rotating. 3 rotates synchronously. When the pressure rod 51 rotates to a certain angle, the limit block 511 on the outer side of the pressure rod 51 contacts the inner wall of the limit port on the outer side of the placement table 52, limiting the rotation of the pressure rod 51. As the internal threaded sleeve 53 rotates, the pressure rod 51 moves downward, so that the upper end of the pressure rod 51 cooperates with the volute bottom plate to press and fix the volute bottom plate. Then the first robot 6 works to rivet the air duct bracket to the upper end of the volute bottom plate. After the riveting is completed, the motor 17 works to drive the gear ring 55 to rotate in the opposite direction through the drive gear 18, thereby resetting the pressure rod 51. Then the first robot 6 places the riveted volute bottom plate on the upper end of the pallet of the conveyor line 1. The external controller controls the conveyor line 1 to work and fix the volute bottom plate. It is transported, and when the volute bottom plate is transported to the enclosure pressing and positioning device 7, the enclosure is pressed and positioned by the enclosure pressing and positioning device 7, and when the volute bottom plate is transported to the enclosure rolling and edging device 8, the enclosure is rolled and edged by the enclosure rolling and edging device 8, and when the volute bottom plate is transported to the combined riveting device 9, the enclosure is riveted by the combined riveting device 9, and when the volute bottom plate moves to the air outlet flange riveting station 10, the corresponding second robot 12 works to rivet the air outlet flange of the volute bottom plate, and when the volute bottom plate moves to the oil receiving pan riveting station 11, the corresponding second robot 12 works to rivet the oil receiving pan of the volute bottom plate, so that the range hood air duct volute is formed, and the conveyor line 1 When conveying the volute, under the elastic force of spring 224, telescopic rod 221 extends along sleeve 222, causing the right end of limit plate 23 rotatably connected to telescopic rod 221 to tilt upward. When the convex strip 24 on the bottom surface of the tray of conveyor line 1 contacts the right end of limit plate 23, the tray of conveyor line 1 can be limited. When the tray of conveyor line 1 needs to move, the external controller controls the electromagnet 225 to work, adsorbs telescopic rod 221, causes telescopic rod 221 to shrink along sleeve 222, and then causes the left end of limit plate 23 to tilt upward. At this time, the tray inside conveyor line 1 continues to be conveyed to the left until the left end of limit plate 23 contacts the convex strip 24 on the bottom surface of the tray, which can limit the transportation of the tray.

[0034] It is worth noting that the conveyor line 1, the first robot 6, the second robot 12, the electromagnet 225, the motor 17 and the industrial camera 14 disclosed in this embodiment can be freely configured according to the actual application scenario. It is recommended to use a double-layer circulating speed chain with model LPB-B1 for the conveyor line 1, and it is recommended that the first robot 6 and the second robot 12 use a six-axis robot with model BRTIRWD1506A. It is recommended to use an electromagnet with model H5030 for the electromagnet 225, and a motor with model YE2-80M-4 for the motor 17. It is recommended to use an industrial camera with model HDMI1660 for the industrial camera 14. The external controller controls the operation of the conveyor line 1, the first robot 6, the second robot 12, the electromagnet 225, the motor 17 and the industrial camera 14 using methods commonly used in the prior art.

[0035] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. Intelligent production line for range hood duct vortex housing, characterized by: It includes a conveying line (1) and a limiting component (2); Conveyor line (1): On its outer side, from right to left, a motor bracket riveting station (3), an air duct bracket riveting station (4), a first robot (6), a panel pressing and positioning device (7), a panel rolling and edge wrapping device (8), a combined pressure riveting device (9), an air outlet flange riveting station (10), an oil pan riveting station (11) and a second robot (12) are arranged in sequence. A pressing component (5) is provided on the upper surface of the air duct bracket riveting station (4); Limiting assembly (2): arranged in the middle of the frame of the conveyor line (1); Wherein: the input ends of the conveyor line (1), the first robot (6) and the second robot (12) are all electrically connected to the output end of the external controller; The limiting assembly (2) includes a mounting frame (21), a driving rod (22), a limiting plate (23) and a convex strip (24). The mounting frame (21) is arranged in the middle of the frame body of the conveyor line (1). The middle of the mounting frame (21) is rotatably connected to the driving rod (22) and the limiting plate (23). The right end of the driving rod (22) is rotatably connected to the U-shaped seat on the bottom surface of the limiting plate (23) through a pin shaft. The center of the bottom surface of the support plate of the conveyor line (1) is provided with a convex strip (24) that cooperates with the limiting plate (23). The driving rod (22) includes a telescopic rod (221), a sliding sleeve (222), a spring (224) and an electromagnet (225). The sliding sleeve (222) rotates on the middle part of the mounting frame (21). The interior of the sliding sleeve (222) is slidably connected to the telescopic rod (221). The right end of the telescopic rod (221) is rotatably connected to the U-shaped seat on the bottom surface of the limiting plate (23). The inner bottom surface of the sliding sleeve (222) is provided with an electromagnet (225) that cooperates with the telescopic rod (221). The outer side surface of the telescopic rod (221) is provided with a spring (224). The spring (224) is located inside the sliding sleeve (222). The input end of the electromagnet (225) is electrically connected to the output end of the external controller. A limiting ring (223) is provided on the outer side surface of the telescopic rod (221). The limiting ring (223) is located inside the sliding sleeve (222). The right end of the spring (224) contacts the limiting ring (223).

2. The intelligent production line for range hood air duct vortex housing according to claim 1, characterized in that: An industrial camera (14) is provided at the upper middle portion of the conveyor line (1), and an output end of the industrial camera (14) is electrically connected to an input end of an external controller.

3. The intelligent production line for range hood air duct vortex housing according to claim 1, characterized in that: A positioning plate (15) is provided at the center of each support plate of the conveyor line (1), and a magnet (16) is provided in a groove at the upper end of the step surface of the positioning plate (15).

4. The intelligent production line for range hood air duct vortex housing according to claim 1, characterized in that: The pressing assembly (5) includes a pressing rod (51), a placing platform (52) and an internal threaded sleeve (53). The placing platform (52) is arranged in the middle of the upper surface of the air duct bracket riveting platform (4). The pressing rods (51) are movably inserted into the circular holes evenly arranged at the edge of the placing platform (52). The outer side surfaces of the pressing rods (51) are evenly provided with limit blocks (511). The outer side surfaces of the placing platform (52) are evenly provided with limit openings that cooperate with the limit blocks (511). The outer side surfaces of the placing platform (52) are evenly rotatably connected with the internal threaded sleeves (53). The lower ends of the pressing rods (51) are respectively threadedly connected to the vertically corresponding internal threaded sleeves (53).

5. The intelligent production line for range hood air duct vortex housing according to claim 4, characterized in that: The lower end of the outer side surface of the placement platform (52) is rotatably connected to a gear ring (55), and the lower end of the outer side surface of the internal threaded sleeve (53) is provided with a gear (54) meshing with the gear ring (55). The bottom surface of the air duct bracket riveting platform (4) is provided with a motor (17), the output shaft of the motor (17) passes through a circular hole on the surface of the air duct bracket riveting platform (4) and is provided with a driving gear (18) at the upper end. The driving gear (18) is meshingly connected to the gear ring (55), and the input end of the motor (17) is electrically connected to the output end of the external controller.

6. The intelligent production line for range hood air duct vortex housing according to claim 1, characterized in that: It also includes a fence (13), which is located outside the conveyor line (1).

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