Impeller of air suspension centrifugal blower and automatic assembling system of impeller

Abstract

The invention belongs to the technical field of air suspension centrifugal blowers, and particularly relates to an impeller of an air suspension centrifugal blower and an automatic assembly system.The impeller is mainly composed of a main impeller base, first blades, second blades and a cooling fan base, the main impeller base serves as a carrier, the first blades serve as main blades, and the second blades serve as second blades; the second blade is used as the auxiliary blade, and the first blade and the second blade can be made of materials different from those of the main impeller seat, so that the overall process casting difficulty is reduced, and meanwhile, the overall manufacturing cost is reduced. The heat dissipation fan base is installed on the back side of the main impeller base in a riveting mode, and the heat dissipation fan base can absorb heat of the motor rotor and conduct air blowing cooling on the motor rotor in the process of rotating along with the main impeller base. According to the automatic assembling system, automatic assembling of the combined impeller can be achieved, and the assembling efficiency is high.

Description

Technical Field

[0001] The present invention belongs to the technical field of air suspension centrifugal blowers, and in particular relates to an impeller of an air suspension centrifugal blower and an automated assembly system thereof. Background Art

[0002] The role of the impeller in an air suspension centrifugal blower is primarily reflected in the following aspects: 1) The impeller is the core component of an air suspension blower. Its primary function is to convert the motor's mechanical energy into kinetic and pressure energy of the gas. When the motor drives the impeller to rotate, air is drawn in and gains energy from the impeller's rotation, thereby accelerating and increasing its pressure. 2) The design and performance of the impeller have a crucial impact on the overall efficiency of the blower. High-quality impeller design, such as those employing three-dimensional flow theory, can significantly improve blower efficiency and performance. Furthermore, factors such as the impeller's material, size, and shape also affect the blower's flow rate, pressure, and operating efficiency. For example, a narrower impeller reduces the air inlet area, which increases pressure as the blower speed increases. 3) In air suspension centrifugal blowers, the impeller and motor are typically directly connected, which significantly improves power transmission efficiency. This direct connection reduces energy loss during transmission, enabling more efficient blower operation. 4) The impeller is made of high-strength, corrosion-resistant materials such as aluminum alloy or titanium alloy, which have excellent wear resistance and deformation resistance.

[0003] The impellers in most air suspension centrifugal blowers are integrated structures, with fixed blades—that is, they are shaped during casting. This makes it difficult to replace the impellers promptly when a blower with different performance and efficiency is required, and the impellers also fail to provide cooling for the motor rotor. To address this, our company has designed a modular impeller suitable for air suspension centrifugal blowers. However, the existing technology lacks an automated assembly system that can quickly assemble such modular impellers. Summary of the Invention

[0004] The purpose of the present invention is to overcome the above-mentioned problems existing in the prior art and to provide an impeller for an air suspension centrifugal blower and an automated assembly system thereof.

[0005] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0006] The present invention provides an impeller for an air suspension centrifugal blower, comprising a main impeller seat, a first blade, a second blade and a heat dissipation fan seat. One side of the main impeller seat is equipped with a circle of first blades serving as main blades and a circle of second blades serving as auxiliary blades. The second blades are located in the inner area of the first blades and protrude outward relative to the first blades. The other side of the main impeller seat is equipped with a heat dissipation fan seat for blowing air to cool the motor rotor through a rivet.

[0007] Furthermore, in the impeller of the above-mentioned air suspension centrifugal blower, the main impeller seat is a stepped seat formed by connecting a first disk body, a second disk body and a third disk body with gradually decreasing outer diameters in sequence, and an axis mounting groove is provided at the center of the main impeller seat, and the upper side surface of the first disk body and the peripheral side surface of the second disk body are jointly provided with a plurality of first clamping grooves for clamping the first blade along the circumferential direction, the upper side surface of the second disk body and the peripheral side surface of the third disk body are jointly provided with a plurality of second clamping grooves for clamping the second blade along the circumferential direction, the upper side surface of the third disk body is provided with a plurality of riveted through grooves along the circumferential direction, a groove is provided at the center of the lower side surface of the first disk body, and a plurality of third clamping grooves are provided circumferentially at the periphery of the groove, and a plurality of positioning grooves are provided on the top surface of the groove around the shaft mounting groove, and the circumferential positions of the positioning grooves and the riveted through grooves are staggered with each other.

[0008] Furthermore, in the impeller of the above-mentioned air suspension centrifugal blower, the circumferential positions of the first clamping groove, the second clamping groove, and the third clamping groove are staggered with each other, the angle between the first clamping groove and the vertical plane is 25 to 35 degrees, the angle between the second clamping groove and the vertical plane is 45 to 60 degrees, and the angle between the third clamping groove and the vertical plane is 0.

[0009] Furthermore, in the impeller of the above-mentioned air suspension centrifugal blower, the heat dissipation fan seat is composed of a protrusion and cooling fan blades evenly distributed around its outer circumference, the outer diameter of the protrusion and the diameter of the groove match each other, and the cooling fan blades can be snapped into the corresponding third snap-in groove. A through-axis groove is provided at the center of the protrusion, and a plurality of rivet matching grooves corresponding to the positions of the rivet through grooves are provided around the through-axis groove. A plurality of positioning protrusions matching the positioning grooves are provided on the upper side surface of the protrusion along the circumferential direction, and a rivet avoidance groove connected to the rivet matching groove is provided on the lower side surface of the protrusion along the circumferential direction.

[0010] Furthermore, in the impeller of the above-mentioned air suspension centrifugal blower, the material of the main impeller seat is AL6061 aluminum alloy, and the material of the heat dissipation fan seat is graphite aluminum alloy composite material.

[0011] Furthermore, in the impeller of the above-mentioned air suspension centrifugal blower, the material of the first blade is AL7075 aviation aluminum alloy, and the material of the second blade is Ti-6Al-4V titanium alloy.

[0012] The present invention also provides an automated assembly system for an impeller of an air-suspended centrifugal blower, the automated assembly system comprising a positioning assembly, a first blade loading assembly, a second blade loading assembly, a welding assembly, a riveting assembly and a controller, wherein the first blade loading assembly, the second blade loading assembly, the welding assembly and the riveting assembly are circumferentially installed above the positioning assembly, and the positioning assembly, the first blade loading assembly, the second blade loading assembly, the welding assembly and the riveting assembly are respectively connected to the controller; the positioning assembly is used to position and place the heat dissipation fan seat and drive it to rotate around its own axis at a certain angle, the riveting assembly is used to rivet and fix the main impeller seat to the heat dissipation fan seat, the first blade loading assembly is used to clamp the first blade on the main impeller seat in sequence, the second blade loading assembly is used to clamp the second blade on the main impeller seat in sequence, and the welding assembly is used to weld and fix the first blade and the second blade to the main impeller seat respectively.

[0013] Furthermore, in the above-mentioned automated assembly system, the positioning component includes a positioning plate and a rotary drive for driving it to rotate around its own axis, a center slot cooperating with the protrusion is provided at the center of the upper side of the positioning plate, and a plurality of riveted positioning blocks extending into the riveted avoidance groove are provided on the upper side of the center slot, and a plurality of inclined support blocks are provided around the center slot of the positioning plate, and a fan blade avoidance groove cooperating with the cooling fan blade is formed between two adjacent inclined support blocks.

[0014] Furthermore, in the above-mentioned automated assembly system, the first fan blade loading assembly and the second fan blade loading assembly both include a material box, the interior of the material box is provided with a blade storage cavity for placing the first blade or the second blade, a circulating conveyor belt is installed at the lower part of the material box, a driven roller and an active roller are installed at both ends of the circulating conveyor belt respectively, a plurality of vacuum suction cups are installed on the inner side of the middle part of the belt body of the circulating conveyor belt, and a plurality of adsorption holes are opened in the middle part of the belt body of the circulating conveyor belt to facilitate the vacuum suction cup to adsorb the first blade or the second blade.

[0015] Furthermore, in the above-mentioned automated assembly system, the welding assembly includes a base plate, a horizontal push rod, a laser welding head and a tilting mechanism, the cylinder of the horizontal push rod is fixed on the base plate, and the movable end of the horizontal push rod is supported by the laser welding head via the tilting mechanism; the tilting mechanism includes a fixed ear seat, a movable ear seat, a positioning shaft, a driven roller, a servo motor and a driving gear, the fixed ear seat is fixed to the movable end of the horizontal push rod, the movable ear seat is fixed to the laser welding head, a positioning shaft passing through the fixed ear seat is fixed on the movable ear seat, a driven roller is fixed to the middle of the positioning shaft, the outer periphery of the driven roller is evenly distributed with teeth and grooves, a servo motor is embedded and fixed in the fixed ear seat, a driving gear is installed at the output end of the servo motor, and the driving gear and the teeth and grooves of the driven roller are meshed with each other; a movable cavity is opened in the fixed ear seat to facilitate the movement of the driven roller and the driving gear.

[0016] The beneficial effects of the present invention are:

[0017] 1. The present invention provides an impeller for an air suspension centrifugal blower, primarily comprising a main impeller seat, a first blade, a second blade, and a heat dissipation fan seat. The main impeller seat serves as a carrier, the first blade serves as a primary blade, and the second blade serves as a secondary blade. The first and second blades can be made of a different material from that of the main impeller seat, thereby reducing the overall casting difficulty and overall manufacturing cost. The heat dissipation fan seat is riveted to the back side of the main impeller seat. As the heat dissipation fan seat rotates with the main impeller seat, it absorbs heat from the motor rotor and provides air cooling.

[0018] 2. The automated assembly system of the present invention is mainly composed of a positioning component, a first blade loading component, a second blade loading component, a welding component, a riveting component and a controller. The first blade loading component, the second blade loading component, the welding component and the riveting component are circumferentially installed above the positioning component. The positioning component, the first blade loading component, the second blade loading component, the welding component and the riveting component are respectively connected to the controller. The positioning component is used to position the heat dissipation fan seat and drive it to rotate around its own axis at a certain angle. The riveting component is used to rivet the main impeller seat and the heat dissipation fan seat. The first blade loading component is used to clamp the first blade on the main impeller seat in sequence. The second blade loading component is used to clamp the second blade on the main impeller seat in sequence. The welding component is used to weld the first blade and the second blade to the main impeller seat respectively. In this way, the automated assembly of the combined impeller can be achieved with high assembly efficiency.

[0019] Of course, any product implementing the present invention does not necessarily need to achieve all of the above advantages at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 It is a schematic structural diagram of the entire impeller of the present invention;

[0022] Figure 2 It is a schematic front view of the entire impeller of the present invention;

[0023] Figure 3 Schematic top view of the entire impeller of the present invention;

[0024] Figure 4 Schematic bottom view of the entire impeller of the present invention;

[0025] Figure 5 This is a schematic diagram of the overall structure of the impeller of the present invention;

[0026] Figure 6 This is an exploded front view of the entire structure of the impeller of the present invention;

[0027] Figure 7 A schematic structural diagram of a main impeller seat in the impeller of the present invention at one angle;

[0028] Figure 8 This is a schematic structural diagram of another angle of the main impeller seat in the impeller of the present invention;

[0029] Figure 9 A schematic structural diagram of a heat dissipation fan seat in the impeller of the present invention at one angle;

[0030] Figure 10 This is a schematic structural diagram of another angle of the heat dissipation fan seat in the impeller of the present invention;

[0031] Figure 11 It is a structural block diagram of the automatic assembly system of the present invention;

[0032] Figure 12 A schematic structural diagram of a positioning component in the automated assembly system of the present invention;

[0033] Figure 13 This is a schematic structural diagram of a fan blade loading assembly in the automated assembly system of the present invention;

[0034] Figure 14 A schematic structural diagram of a welding assembly in the automated assembly system of the present invention;

[0035] Figure 15 This is a structural diagram of the tilt adjustment mechanism in the automated assembly system of the present invention;

[0036] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0037] 1-main impeller seat, 101-first disc, 102-second disc, 103-third disc, 104-shaft mounting slot, 105-first clamping slot, 106-second clamping slot, 107-third clamping slot, 108-groove, 109-third clamping slot, 110-positioning slot;

[0038] 2-first leaf;

[0039] 3- second blade;

[0040] 4- cooling fan seat, 401- bump, 402- cooling fan blade, 403- shaft slot, 404- positioning protrusion, 405- riveted matching slot, 406- riveted avoidance slot;

[0041] 5-Riveted parts;

[0042] 6- positioning assembly, 601- positioning plate, 602- rotary drive, 603- center slot, 604- riveted positioning block, 605- tilting support block, 606- fan blade avoidance slot;

[0043] 7-first fan blade loading assembly, 701-material box, 702-circulating conveyor belt, 703-driven roller, 704-active roller, 705-vacuum suction cup;

[0044] 8-second fan blade loading assembly;

[0045] 9-welding assembly, 901-base plate, 902-horizontal push rod, 903-laser welding head, 904-fixed ear seat, 905-movable ear seat, 906-positioning shaft, 907-driven roller, 908-tooth groove, 909-servo motor, 910-driving gear,

[0046] 10-Riveted components;

[0047] 11-Controller. DETAILED DESCRIPTION

[0048] 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 any creative efforts shall fall within the scope of protection of the present invention.

[0049] Example 1

[0050] like Figures 1-6 As shown, this embodiment provides an impeller of an air suspension centrifugal blower, including a main impeller seat 1, first blades 2, second blades 3 and a heat dissipation fan seat 4. One side of the main impeller seat 1 is equipped with a circle of first blades 2 as main blades and a circle of second blades 3 as auxiliary blades. The second blades 3 are located in the inner area of the first blades 2 and protrude outward relative to the first blades 2. The other side of the main impeller seat 1 is equipped with a heat dissipation fan seat 4 for blowing air to cool the motor rotor through a rivet 5.

[0051] like Figure 7-Figure 8As shown, the main impeller seat 1 is a stepped seat formed by sequentially connecting a first disc 101, a second disc 102, and a third disc 103, each with a gradually decreasing outer diameter. A shaft mounting groove 104 is defined at the center of the main impeller seat 1. The upper side of the first disc 101 and the circumferential side of the second disc 102 are circumferentially defined with a plurality of first engaging grooves 105 for engaging the first blades 2. The upper side of the second disc 102 and the circumferential side of the third disc 103 are circumferentially defined with a plurality of second engaging grooves 106 for engaging the second blades 3. The upper side of the third disc 103 is circumferentially defined with a plurality of riveted grooves 107. A groove 108 is defined at the center of the lower side of the first disc 101. A plurality of third engaging grooves 109 are circumferentially defined around the periphery of groove 108. The top surface of groove 108 is defined with a plurality of positioning grooves 110 surrounding the shaft mounting groove 104. The positioning grooves 110 and the riveted grooves 107 are circumferentially staggered.

[0052] In this embodiment, the circumferential positions of the first snap-fitting groove 105, the second snap-fitting groove 106 and the third snap-fitting groove 107 are staggered with each other, the angle between the first snap-fitting groove 105 and the vertical plane is 25 to 35 degrees, the angle between the second snap-fitting groove 106 and the vertical plane is 45 to 60 degrees, and the angle between the third snap-fitting groove 107 and the vertical plane is 0.

[0053] like Figure 9-10 As shown, the heat dissipation fan seat 4 is composed of a protrusion 401 and cooling fan blades 402 evenly distributed around its periphery. The outer diameter of the protrusion 401 matches the diameter of the groove 108, and the cooling fan blades 402 can be snapped into the corresponding third snap-in groove 107. A through-shaft groove 403 is provided at the center of the protrusion 401 to match the shaft mounting groove 104. The protrusion 401 is provided with a plurality of rivet-matching grooves 405 corresponding to the positions of the rivet-matching grooves 107 around the through-shaft groove 403. The upper side surface of the protrusion 401 is provided with a plurality of positioning protrusions 404 that match the positioning groove 110 along the circumferential direction, and the lower side surface of the protrusion 401 is provided with a rivet-matching avoidance groove 406 that communicates with the rivet-matching groove 405 along the circumferential direction.

[0054] In this embodiment, the main impeller seat 1 is constructed from AL6061 aluminum alloy. This alloy is significantly less expensive than titanium or high-strength aircraft aluminum, yet it meets the strength requirements of the impeller base. AL6061 aluminum alloy offers excellent castability and machinability, making it suitable for manufacturing complex impeller seats and reducing manufacturing costs. Its lightweight properties reduce overall weight and avoid increasing bearing loads.

[0055] In this embodiment, the first blade 2 is constructed from AL7075 aviation aluminum alloy. As a core aerodynamic component, it requires high strength, deformation resistance, and wear resistance. AL7075 offers the best overall performance among aviation-grade aluminum alloys, with a lifespan exceeding 20 years. Five-axis CNC precision machining ensures high aerodynamic efficiency for the impeller, ensuring efficient blower operation. Its low density reduces centrifugal stress during high-speed rotation.

[0056] In this embodiment, the second blade 3 is made of Ti-6Al-4V titanium alloy. Secondary blades assist the main blades in regulating airflow and bearing localized high stresses. Titanium alloys have a specific strength (strength / density) far exceeding that of aluminum alloys, offering excellent fatigue resistance and suitability for high-frequency loads. They also offer excellent corrosion resistance, enabling them to withstand humid or contaminated working environments and reducing maintenance costs. While Ti-6Al-4V titanium alloy is relatively expensive, its low usage keeps overall costs manageable.

[0057] In this embodiment, the heat sink base 4 is constructed from a graphite-aluminum alloy composite material. The aluminum alloy matrix ensures low cost and ease of processing, while the addition of graphite significantly improves thermal conductivity, rapidly dissipating heat from the motor and bearings. This graphite-aluminum alloy composite material balances heat dissipation efficiency and affordability, avoiding the high cost of pure carbon materials.

[0058] The specific application of this embodiment is as follows: The impeller is scientifically and rationally designed and is primarily composed of a main impeller seat 1, a first blade 2, a second blade 3, and a heat dissipation fan seat 4. The main impeller seat 1 serves as a carrier, the first blade 2 serves as a main blade, and the second blade 3 serves as an auxiliary blade. The first blade 2 and the second blade 3 can be made of a different material from that of the main impeller seat 1, thereby reducing the overall casting difficulty and overall manufacturing cost. By riveting the heat dissipation fan seat 4 to the back side of the main impeller seat 1, the heat dissipation fan seat 4 can absorb heat from the motor rotor and provide air cooling to the motor rotor as it rotates with the main impeller seat 1.

[0059] Example 2

[0060] like Figure 11As shown, this embodiment provides an automated assembly system for an impeller of an air suspension centrifugal blower, the automated assembly system comprising a positioning assembly 6, a first blade loading assembly 7, a second blade loading assembly 8, a welding assembly 9, a riveting assembly 10, and a controller 11. The first blade loading assembly 7, the second blade loading assembly 8, the welding assembly 9, and the riveting assembly 10 are circumferentially mounted above the positioning assembly 6. The positioning assembly 6, the first blade loading assembly 7, the second blade loading assembly 8, the welding assembly 9, and the riveting assembly 10 are respectively connected to the controller 11. The positioning assembly 6 is used to position and place the heat dissipation fan seat 4 and drive it to rotate around its own axis at a certain angle. The riveting assembly 10 is used to rivet the main impeller seat 1 to the heat dissipation fan seat 4. The first blade loading assembly 7 is used to sequentially clamp the first blade 2 to the main impeller seat 1. The second blade loading assembly 8 is used to sequentially clamp the second blade 3 to the main impeller seat 1. The welding assembly 9 is used to weld the first blade 2 and the second blade 3 to the main impeller seat 1, respectively.

[0061] like Figure 12 As shown, the positioning assembly 6 includes a positioning plate 601 and a rotary driver 602 for driving it to rotate around its own axis. A central slot 603 cooperating with the protrusion 401 is provided at the center of the upper side of the positioning plate 601, and a plurality of riveted positioning blocks 604 extending into the riveted avoidance groove 406 are provided on the upper side of the central slot 603. The positioning plate 601 is provided with a plurality of inclined support blocks 605 around the central slot 603, and a blade avoidance groove 606 cooperating with the cooling fan blade 402 is formed between two adjacent inclined support blocks 605.

[0062] like Figure 13 As shown, the first blade loading assembly 7 and the second blade loading assembly 8 each include a material box 701, the interior of which is provided with a blade storage cavity for conveniently placing the first blade 2 or the second blade 3. A circulating conveyor belt 702 is installed at the lower portion of the material box 701, and a driven roller 703 and a driving roller 704 are respectively installed at both ends of the circulating conveyor belt 702. A plurality of vacuum suction cups 705 are installed on the inner side of the middle portion of the belt body of the circulating conveyor belt 702, and a plurality of suction holes are opened in the middle portion of the belt body of the circulating conveyor belt 702 to facilitate the vacuum suction cups 705 to adsorb the first blade 2 or the second blade 3.

[0063] In this embodiment, the driven roller 703 and the active roller 704 each comprise a support shaft and two rollers sleeved and fixed thereon. The outer diameter of the support shaft is smaller than that of the rollers, so that the vacuum suction cup will not collide with the driven roller 703 or the active roller 704 when the endless conveyor belt 702 moves. The outer side of the rollers is provided with anti-skid grooves, and the inner side of the endless conveyor belt 702 near both ends is provided with anti-skid protrusions that mesh with the anti-skid grooves.

[0064] In this embodiment, a feeding port is provided between the magazine 701 and the endless conveyor belt 702. Magazine 701 is driven vertically by a multi-axis manipulator or a vertical linear guide pair. A feeding push rod is mounted at the opening of the blade storage chamber in magazine 701. A pressure block is mounted at the movable end of the feeding push rod, which applies pressure to the outermost first blade 2 or second blade 3 to ensure smooth feeding.

[0065] like Figure 14-15 As shown, the welding assembly 9 includes a base plate 901, a horizontal push rod 902, a laser welding head 903 and a tilting mechanism. The cylinder of the horizontal push rod 902 is fixed to the base plate 901, and the movable end of the horizontal push rod 902 supports the laser welding head 903 through the tilting mechanism. The tilting mechanism includes a fixed ear seat 904, a movable ear seat 905, a positioning shaft 906, a driven roller 907, a servo motor 909 and a driving gear 910. The fixed ear seat 904 is fixed to the movable end of the horizontal push rod 902, the movable ear seat 905 is fixed to the laser welding head 903, and a positioning shaft 906 that passes through the fixed ear seat 904 is fixed to the movable ear seat 905. A driven roller 907 is fixed to the middle of the positioning shaft 906, and the outer periphery of the driven roller 907 is evenly distributed with tooth grooves 908. A servo motor 909 is embedded and fixed in the fixed ear seat 904, and a driving gear 910 is installed at the output end of the servo motor 909. The driving gear 910 and the tooth grooves of the driven roller 907 are meshed with each other; a movable cavity is opened in the fixed ear seat 904 to facilitate the movement of the driven roller 907 and the driving gear 910.

[0066] In this embodiment, the substrate 901 is driven by a multi-axis manipulator or a vertical linear guide pair to perform vertical displacement.

[0067] The automated assembly system includes a positioning component 6, a first blade loading component 7, a second blade loading component 8, a welding component 9, a riveting component 10, and a controller 11. Each component cooperates with each other, and its specific working process is as follows:

[0068] S1. Use the positioning assembly 6 to position and place the heat dissipating fan seat 4 and drive it to rotate around its own axis at a predetermined angle. Use the loading robot to clamp and place the main impeller seat 1 on the heat dissipating fan seat 4. Use the riveting assembly 10 to rivet the main impeller seat 1 and the heat dissipating fan seat 4 together, forming a riveted part 5 at the corresponding riveting grooves 107, riveting matching grooves 405, riveting avoidance grooves 406, and riveting positioning blocks 604. After each riveting operation, the rotary driver 602 in the positioning assembly 6 drives the positioning plate 601 to rotate at an angle equal to the angle between the centers of the two adjacent riveting grooves 107 until all riveting operations are completed.

[0069] S2. Use the first blade loading assembly 7 to sequentially clamp the first blade 2 onto the main impeller seat 1. Specifically, use the vacuum suction cup 705 on the circulating conveyor 702 to suck the first blade 2 toward the corresponding first clamping groove 105. After each clamping operation is completed, the rotary driver 602 in the positioning assembly 6 drives the positioning plate 601 to rotate. The rotation angle is equal to the angle between the centers of two adjacent first clamping grooves 105 until all clamping operations are completed.

[0070] S3. Use the first blade loading assembly 7 to sequentially clamp the second blade 3 onto the main impeller seat 1. Specifically, use the vacuum suction cup 705 on the circulating conveyor 702 to suck the second blade 3 and move it toward the corresponding second clamping groove 106. After each clamping operation is completed, the rotary driver 602 in the positioning assembly 6 drives the positioning plate 601 to rotate, and the rotation angle is equal to the angle between the centers of two adjacent second clamping grooves 106; until all clamping operations are completed;

[0071] S4. Use the welding assembly 9 to weld the first blade 2 and the second blade 3 to the main impeller seat 1 respectively. Specifically, use a multi-axis manipulator or a vertical linear guide pair to drive the laser welding head 903 to perform vertical displacement, use the horizontal push rod 902 to drive the laser welding head 903 to perform horizontal displacement, and use the tilting mechanism to adjust the direction of the laser welding head 903 (which can be switched between horizontal and vertical states). Each time the welding operation of the first weld between the first clamping groove 105 and the first blade 2 is completed, the rotary driver 602 in the positioning assembly 6 drives the positioning plate 601 to rotate, and the rotation angle is equal to the center angle between the two adjacent first clamping grooves 105; until all first welding operations are completed; and then similarly, the welding operations of the second welds between all first clamping grooves 105 and the first blade 2 can be completed.

[0072] The preferred embodiments of the present invention disclosed above are merely intended to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An impeller for an air suspension centrifugal blower, characterized in that: It includes a main impeller seat, a first blade, a second blade and a heat dissipation fan seat. One side of the main impeller seat is equipped with a circle of first blades as main blades and a circle of second blades as auxiliary blades. The second blades are located in the inner area of the first blades and protrude outward relative to the first blades. The other side of the main impeller seat is equipped with a heat dissipation fan seat for blowing air to cool the motor rotor through a rivet.

2. The impeller of the air suspension centrifugal blower according to claim 1, characterized in that: The main impeller seat is a stepped seat formed by connecting a first disk body, a second disk body and a third disk body in sequence with gradually decreasing outer diameters. A shaft mounting groove is provided at the center of the main impeller seat, and the upper side surface of the first disk body and the peripheral side surface of the second disk body are jointly provided with a plurality of first clamping grooves for clamping the first blade along the circumferential direction. The upper side surface of the second disk body and the peripheral side surface of the third disk body are jointly provided with a plurality of second clamping grooves for clamping the second blade along the circumferential direction. The upper side surface of the third disk body is provided with a plurality of riveted through grooves along the circumferential direction, a groove is provided at the center of the lower side surface of the first disk body, and a plurality of third clamping grooves are provided circumferentially at the periphery of the groove. The top surface of the groove is provided with a plurality of positioning grooves around the shaft mounting groove, and the circumferential positions of the positioning grooves and the riveted through grooves are staggered with each other.

3. The impeller of the air suspension centrifugal blower according to claim 2, characterized in that: The circumferential positions of the first clamping groove and the second clamping groove and the third clamping groove are staggered with each other, the angle between the first clamping groove and the vertical plane is 25 to 35 degrees, the angle between the second clamping groove and the vertical plane is 45 to 60 degrees, and the angle between the third clamping groove and the vertical plane is 0.

4. The impeller of the air suspension centrifugal blower according to claim 3, characterized in that: The heat dissipation fan seat is composed of a protrusion and cooling fan blades evenly distributed around its outer circumference. The outer diameter of the protrusion matches the diameter of the groove. The cooling fan blades can be snapped into the corresponding third snap-in groove. A through-axis groove is provided at the center of the protrusion. The protrusion is provided with a plurality of rivet matching grooves corresponding to the positions of the rivet through grooves around the through-axis groove. The upper side surface of the protrusion is provided with a plurality of positioning protrusions matching with the positioning grooves along the circumferential direction. The lower side surface of the protrusion is provided with a rivet avoidance groove connected with the rivet matching groove along the circumferential direction.

5. The impeller of the air suspension centrifugal blower according to claim 4, characterized in that: The main impeller seat is made of AL6061 aluminum alloy, and the heat dissipation fan seat is made of graphite aluminum alloy composite material.

6. The impeller of the air suspension centrifugal blower according to claim 5, characterized in that: The material of the first blade is AL7075 aviation aluminum alloy, and the material of the second blade is Ti-6Al-4V titanium alloy.

7. The automated assembly system for the impeller of an air suspension centrifugal blower according to claim 6, characterized in that: The automated assembly system includes a positioning component, a first blade loading component, a second blade loading component, a welding component, a riveting component and a controller. The first blade loading component, the second blade loading component, the welding component and the riveting component are circumferentially installed above the positioning component. The positioning component, the first blade loading component, the second blade loading component, the welding component and the riveting component are respectively connected to the controller; the positioning component is used to position the heat dissipation fan seat and drive it to rotate around its own axis at a certain angle, the riveting component is used to rivet the main impeller seat and the heat dissipation fan seat, the first blade loading component is used to clamp the first blade on the main impeller seat in sequence, the second blade loading component is used to clamp the second blade on the main impeller seat in sequence, and the welding component is used to weld the first blade and the second blade to the main impeller seat respectively.

8. The automated assembly system according to claim 7, wherein: The positioning assembly includes a positioning plate and a rotary driver for driving it to rotate around its own axis. A central slot that cooperates with the protrusion is provided at the center of the upper side of the positioning plate. A plurality of riveted positioning blocks extending into the riveted avoidance groove are provided on the upper side of the central slot. The positioning plate is provided with a plurality of inclined support blocks around the central slot, and a fan blade avoidance groove that cooperates with the cooling fan blade is formed between two adjacent inclined support blocks.

9. The automated assembly system according to claim 8, wherein: The first fan blade loading assembly and the second fan blade loading assembly both include a material box, the interior of the material box is provided with a blade storage cavity for placing the first blade or the second blade, a circulating conveyor belt is installed at the lower part of the material box, and a driven roller and an active roller are installed at both ends of the circulating conveyor belt respectively, a plurality of vacuum suction cups are installed on the inner side of the middle part of the belt body of the circulating conveyor belt, and a plurality of adsorption holes are opened in the middle part of the belt body of the circulating conveyor belt to facilitate the vacuum suction cup to adsorb the first blade or the second blade.

10. The automated assembly system according to claim 9, wherein: The welding assembly includes a base plate, a horizontal push rod, a laser welding head and a tilting mechanism. The cylinder of the horizontal push rod is fixed on the base plate, and the movable end of the horizontal push rod is supported by the laser welding head via the tilting mechanism; the tilting mechanism includes a fixed ear seat, a movable ear seat, a positioning shaft, a driven roller, a servo motor and a driving gear. The fixed ear seat is fixed to the movable end of the horizontal push rod, and the movable ear seat is fixed to the laser welding head. A positioning shaft passing through the fixed ear seat is fixed on the movable ear seat, and a driven roller is fixed to the middle of the positioning shaft. The outer periphery of the driven roller is evenly distributed with teeth and grooves. A servo motor is embedded and fixed in the fixed ear seat, and a driving gear is installed at the output end of the servo motor. The driving gear and the teeth and grooves of the driven roller are meshed with each other; a movable cavity is opened in the fixed ear seat to facilitate the movement of the driven roller and the driving gear.

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