CN110948229A

CN110948229A - Fan blade assembling machine applied to air suspension centrifugal blower

Info

Publication number: CN110948229A
Application number: CN201911245967.5A
Authority: CN
Inventors: 张长森; 曹枫
Original assignee: Huzhou University
Current assignee: Shandong Iowa Machinery Technology Co ltd
Priority date: 2019-12-07
Filing date: 2019-12-07
Publication date: 2020-04-03
Anticipated expiration: 2039-12-07
Also published as: CN110948229B

Abstract

The invention relates to a high-efficiency assembling machine for fan blades, which comprises: the feeding device comprises a supporting table, a working frame which is arranged in the center of the supporting table and uniformly distributed with a plurality of component shafts, and a tightening assembly arranged on the component shafts, and the component shafts are rotatably arranged on the working frame; the welding device is used for driving the split shaft to rotate to complete uniform loading work of the blades; the polishing device is arranged in the front process of the feeding device and comprises a plurality of groups of unhairing assemblies which are uniformly arranged, wherein each group of unhairing assembly is arranged between two adjacent blades after welding in a sliding mode, and a driving assembly for driving the unhairing assemblies to synchronously move; after the fan base is screwed and assembled on the feeding device, the blades are sequentially welded on the welding device, and finally the polishing device polishes and welds the assembled fan blades; the invention solves the technical problems that after welding work is finished, welding seams still exist, and timely polishing work cannot be carried out on the same device.

Description

Fan blade assembling machine applied to air suspension centrifugal blower

Technical Field

The invention relates to the technical field of fan blades, in particular to a fan blade assembling machine applied to an air suspension centrifugal blower.

Background

A fan or ventilator is a mechanical device for transporting gas, and from an energy point of view, a fan or ventilator is a mechanical device that converts the mechanical energy of a prime mover into gas energy. The principle of the increase of the gas pressure is mainly divided into a positive displacement type, a blade type and a jet type, wherein the blade type fan can be further divided into a centrifugal type, a mixed flow type, an axial flow type and a cross flow type.

Patent document No. CN2019102292492 discloses a fan blade assembly device, which comprises a workbench, be provided with the operation face on the workstation, the top of operation face is provided with the roof, through stand interconnect between roof and the workstation, the bottom side of roof is connected with the lifter plate through elevating system, the bottom side of lifter plate is connected with the blade positioning die through the bearing, be provided with the location axle sleeve on the operation face, location axle sleeve transmission is connected with rotation regulation subassembly, the axis of rotation of location axle sleeve sets up along vertical direction, the blade positioning die sets up directly over the location axle sleeve, the side of location axle sleeve is provided with blade charging mechanism and welding mechanism.

However, in the actual use process, the inventor finds that after welding work is finished, welding seams still exist, and the problem that timely grinding work cannot be carried out on the same device is solved.

Disclosure of Invention

Aiming at the defects of the prior art, the automatic tightening and positioning of the fan base are realized by arranging the feeding device, the sequential welding and assembling work of the blades is completed by matching with the welding device, the equal distance between every two blades is ensured, and the welding seam polishing work of the assembled fan blades is realized by utilizing the polishing device, so that the technical problems that the welding seam is still existed after the welding work is completed and the timely polishing work can not be performed on the same device are solved.

Aiming at the technical problems, the technical scheme is as follows: a fan blade assembly machine applied to an air suspension centrifugal blower comprises:

the feeding device comprises a supporting table, a working frame which is arranged in the center of the supporting table and is uniformly distributed with a plurality of component shafts, and a screwing assembly arranged on the component shafts, wherein the component shafts are rotatably arranged on the working frame;

the welding device is used for driving the split shaft to rotate to complete uniform loading work of the blades; and

the polishing device is arranged in the previous process of the feeding device and comprises a plurality of groups of unhairing assemblies which are uniformly arranged, wherein each group of unhairing assembly is arranged between two adjacent blades after welding in a sliding mode, and a driving assembly for driving the unhairing assemblies to synchronously move;

after the fan base is screwed up and installed on the loading device, the blades are sequentially welded by the welding device, and finally, the polishing device polishes the assembled fan blades to weld workers.

Preferably, any two adjacent split shafts form a feeding station, the two split shafts which are positioned along the reverse direction of the rotation of the working frame and on one side of the two split shafts form a polishing station, and the split shafts positioned between the feeding station and the polishing station form a welding station.

Preferably, a rotating part is arranged below the working frame, the rotating part comprises an installation column and a motor which is arranged in the installation column and the output end of the motor is vertically upward, and the working frame is fixedly connected with the output end of the motor and is rotationally arranged on the installation column through a rotating ring; the motor drives the working frame to intermittently rotate.

Preferably, the tightening assembly comprises a pressure divider, a transmission member for driving the pressure divider to fix the fan base on the split shaft, and a limiting member for limiting the split shaft located at the feeding station from rotating.

Preferably, the transmission member comprises:

the arc-shaped rack a is fixedly arranged on the support table and arranged along the rotating direction of the working frame, and the arc-shaped rack a is positioned at the feeding station;

the screw rod is rotatably arranged on the sub-shaft and is coaxial with the sub-shaft;

the gear a is coaxial and fixedly connected with the screw rod, and the gear a is meshed with the arc-shaped rack a; and

the nut is arranged on the bottom plate below the split shaft in a sliding mode through the supporting rod and is in threaded connection with the screw rod.

Preferably, the pressure dividing member includes:

one end of the sleeve separating shaft is fixedly sleeved at the end part of the screw rod, and the end of the sleeve separating shaft facing the working frame is of a hollow structure;

the extruding units are horizontally and symmetrically arranged in the hollow part of the sleeve separating shaft and comprise sliding grooves which are formed in the sleeve separating shaft and are perpendicular to the screw rod, sliding blocks which are arranged in the sliding grooves in a sliding mode, and springs a, one ends of the springs are fixedly connected with the sliding blocks, the other ends of the springs are fixedly connected with the sliding grooves, and chamfers are arranged at one ends of the sliding blocks; and

the pressing rod is provided with two groups and corresponds to the sliding block, the pressing rod is fixedly connected with the nut, and the end part of the pressing rod is provided with a chamfer and is matched with the sliding block.

Preferably, the stopper includes:

the arc-shaped groove is fixedly arranged on the support table and is arranged along the rotating direction of the working frame, and the arc-shaped groove is vertically and upwards arranged; and

and the clamping block is fixedly arranged on the split shaft and is matched with the arc-shaped groove.

Preferably, the welding device includes:

the arc-shaped rack b is fixedly arranged on the support table and arranged along the rotating direction of the working frame, and the arc-shaped rack b and the arc-shaped rack a are arranged in a staggered mode and are positioned at a welding station; and

and the gear b is coaxial and fixedly connected with the split shaft, and is meshed with the arc-shaped rack b.

Preferably, the hair removal assembly comprises:

the connecting block is arranged on the supporting platform in a sliding mode and is positioned in the center position between any two blades; and

the control parts are arranged on two sides of the connecting block in pairs and respectively corresponding to the welding parts with the blades for polishing, and each control part comprises a spring b fixedly connected with the connecting block, a connecting column which is fixedly connected with the other end of the spring b and is vertically arranged, a knife sharpener which is coaxial with the connecting column and is rotationally connected with the connecting column, a roller, a linkage rod a hinged with the connecting block and a linkage rod b hinged with the linkage rod a;

the sharpening and the roller are arranged up and down along the height direction of the connecting column and are in contact with the blades.

As still further preferred, the drive assembly comprises:

the air cylinder is arranged on the support platform and is arranged horizontally; and

and the extension rod is fixedly connected with the telescopic end of the cylinder and is hinged with any one of the linkage rods.

The invention has the beneficial effects that:

(1) according to the invention, the automatic screwing and positioning of the fan base is realized by arranging the feeding device, the sequential welding and loading work of the blades is completed by matching with the welding device, the distance between every two blades is ensured to be equal, the grinding device is utilized to realize the welding seam grinding work of the assembled fan blades, the connection of the processes before and after the whole work is tight, and the quality and the assembling efficiency of the fan blades are improved;

(2) according to the invention, the fan base is manually inserted into the pressure dividing piece by arranging the screwing component, and the pressure dividing piece is matched with the transmission piece in the revolution process by utilizing the split shaft to automatically and stably fix the fan base on the transmission piece, so that the fan base is ensured not to displace during welding, the fan base is positioned, and the welding precision is further improved;

(3) according to the invention, the gear b of the welding device is matched with the arc-shaped rack b, so that the split shaft rotation is realized, the consistency of the stations to be welded on the fan base corresponding to each welding station is further ensured, the efficiency of welding work is improved, the batch output is realized, the same distance between blades can be ensured, and the product quality is improved;

(4) according to the invention, the driving assembly is matched with the unhairing assemblies, so that the plurality of groups of unhairing assemblies slide along the length direction of the blades towards the center of the fan base, the rollers abut against the blades and roll on the side surfaces of the blades, the rollers are rotationally arranged to avoid sliding friction from causing abrasion to the blades, the product quality is reduced, and meanwhile, the corresponding blades are guaranteed to be stably sharpened, and the welding seam is polished.

In conclusion, the device has the advantages of simple structure and automatic blade loading, and is particularly suitable for the technical field of fan blades.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of a fan blade assembly machine applied to an air-suspending centrifugal blower.

Fig. 2 is an enlarged partial schematic view at a of fig. 1.

Fig. 3 is a schematic top view of a fan blade assembly machine applied to an air-suspending centrifugal blower.

Fig. 4 is a schematic cross-sectional view of the feeding device.

Fig. 5 is a schematic view of the tightening assembly.

Fig. 6 is a partially enlarged schematic view at B of fig. 5.

FIG. 7 is a cross-sectional schematic view of the tightening assembly.

Fig. 8 is an enlarged partial schematic view at C of fig. 7.

Fig. 9 is a schematic cross-sectional view of the tightening state of the tightening assembly.

Fig. 10 is a schematic structural view of the polishing apparatus.

Fig. 11 is an enlarged partial schematic view at D of fig. 10.

Fig. 12 is a schematic top view of a grinding apparatus.

Fig. 13 is a schematic view of the state in which the blade is mounted.

FIG. 14 is a schematic view of a fan blade configuration.

Detailed Description

The technical scheme in the embodiment of the invention is clearly and completely explained by combining the attached drawings.

Example one

As shown in fig. 1, a fan blade assembly machine for an air-suspending centrifugal blower includes:

the feeding device 1 comprises a supporting table 11, a working frame 13 which is arranged in the center of the supporting table 11 and is uniformly distributed with a plurality of component shafts 12, and a screwing assembly 14 which is arranged on the component shafts 12, wherein the component shafts 12 are rotatably arranged on the working frame 13;

the welding device 2 is used for driving the split shaft 12 to rotate to complete the uniform loading work of the blades 10; and

the grinding device 3 is arranged in the previous process of the feeding device 1 and comprises a plurality of groups of unhairing components 31 which are uniformly arranged and are arranged between two adjacent blades 10 after welding in a sliding mode, and a driving component 32 for driving the unhairing components 31 to move synchronously;

after the feeding device 1 is screwed up and assembled, the fan base 20 completes sequential welding work of the blades 10 on the welding device 2, and finally the grinding device 3 realizes the work of grinding welding seams of the assembled fan blades.

In this embodiment, realize fan base 20's automatic tightening location through setting up loading attachment 1, cooperation welding set 2 accomplishes the work of welding the facial make-up in proper order to the blade to guarantee that the distance between per two blades equals, recycle grinding device 3 and realize the welding seam work of polishing to the fan blade after the equipment, the process contact is inseparable around the whole work, improves fan blade quality and packaging efficiency.

Further, as shown in fig. 3, any two adjacent split shafts 12 form a feeding station 100, two split shafts 12 located on one side of the two split shafts 12 along the reverse direction of the rotation of the working frame 13 form a grinding station 300, and the split shafts 12 located between the feeding station 100 and the grinding station 300 form a welding station 200.

Further, as shown in fig. 4, a rotating member 131 is disposed below the working frame 13, the rotating member 131 includes a mounting column 132 and a motor 133 disposed in the mounting column 132 and having an output end thereof facing vertically upward, the working frame 13 is fixedly connected to the output end of the motor 133 and is rotatably disposed on the mounting column 132 through a rotating ring; the motor 133 drives the working frame 13 to intermittently rotate.

In this embodiment, the working frame 13 is driven by the motor 133 to intermittently rotate, that is, the angle of each rotation of the sub-shaft 12 is consistent with the time to be rotated, so as to provide the welding operation time and the manual loading and discharging time for the welding operator.

In addition, n split shafts 12 are provided, m blades on the fan blades are provided, n is m +2, the angle of rotation of the motor 133 per time is a, and a is 360 °/m, the time of welding of each blade is equal to the time of the grinding operation of the grinding device, and the motor 133 is rotated once every t times and the size of each rotation angle is a.

Further, as shown in fig. 5, 6, 7, 8 and 9, the tightening assembly 14 includes a pressure divider 141, a transmission member 142 for driving the pressure divider 141 to fix the fan base 20 to the spindle 12, and a limiting member 143 for limiting the spindle 12 at the loading station 100 from rotating.

In this embodiment, through setting up the screwing component 14, the manual work inserts fan base 20 in minute casting die 141, utilize minute axle 12 to realize in the in-process of revolution that minute casting die 141 fixes fan base 20 on transmission piece 142 automatically, and then guarantee that fan base 20 can not take place the displacement when weldment work, improve the welded precision, utilize locating part 143 in addition for transmission piece 142 and fan base 20 fixed working process, minute axle 12 can not take place the rotation, and then do not interfere the drive work of transmission piece 142.

Further, as shown in fig. 5, the transmission member 142 includes:

the arc-shaped rack a1421 is fixedly arranged on the support table 11 and arranged along the rotation direction of the working frame 13, and the arc-shaped rack a1421 is positioned at the feeding station 100;

the screw rod 1424 is rotatably arranged on the sub-shaft 12 and is coaxially arranged with the sub-shaft 12;

the gear a1422, the gear a1422 is coaxial and fixedly connected with the screw 1424, and the gear a1422 is meshed with the arc-shaped rack a 1421; and

the nut 1423 is arranged on the bottom plate 1425 below the split shaft 12 in a sliding manner through a support rod, and the nut 1423 is in threaded connection with the screw 1424.

Further, as shown in fig. 7, 8 and 9, the dividing member 141 includes:

a sleeve separating shaft 1411, wherein one end of the sleeve separating shaft 1411 is fixedly sleeved at the end part of the screw 1424 and one end facing the working frame 13 is arranged in a hollow structure;

the extruding units 1412 are horizontally and symmetrically arranged in the hollow part of the sleeve shaft 1411, and comprise sliding grooves 1413 which are arranged on the sleeve shaft 1411 and are perpendicular to the screw 1424, sliding blocks 1414 which are arranged in the sliding grooves 1413 in a sliding manner, and springs a1415, one ends of which are fixedly connected with the sliding blocks 1414 and the other ends of which are fixedly connected with the sliding grooves 1413, wherein one ends of the sliding blocks 1414 are provided with chamfers; and

two groups of pressure levers 1416 are arranged on the pressure levers 1416 and are arranged corresponding to the sliding block 1414, the pressure levers 1416 are fixedly connected with the nuts 1423, and the end parts of the pressure levers 1416 are provided with chamfers and are arranged in a matching manner with the sliding block 1414.

Specifically, in the revolution process of the split shaft 12, the gear a1422 rotates under the action of the arc-shaped rack a1421, the gear a1422 synchronously drives the screw rod 1424 to rotate on the split shaft 12, the nut 1423 is limited by the T-shaped groove of the bottom plate 1425, so that the nut 1423 moves along the length direction of the screw rod 1424, the nut synchronously drives the pressing rod 1416 to move towards the split shaft 1411 when moving, when the end of the pressing rod 1416 is matched with the end of the sliding block 1414, the sliding block 1414 compresses the spring a1415 and jacks up outwards along the sliding groove 1413, the two sliding blocks 1414 move backwards to complete jacking of the fan base 20, the static friction force between the split shaft 1411 and the inner wall of the fan base 20 is increased, and the fan base 20 is positioned.

In order to ensure that the springs a1415 and b313 always perform linear reciprocating operation during the compression process, telescopic tubes may be disposed in the springs to ensure that the springs are not twisted.

Further, as shown in fig. 6, the stopper 143 includes:

the arc-shaped groove 1431 is fixedly arranged on the support table 11 and is arranged along the rotation direction of the working frame 13, and the arc-shaped groove 1431 is vertically arranged upwards; and

a fixture block 1432, wherein the fixture block 1432 is fixedly arranged on the split shaft 12 and is matched with the arc-shaped groove 1431.

Specifically, in the revolution process of the split shaft 12, the fixture block 1432 below the split shaft 12 is clamped in the arc-shaped groove 1431, the split shaft 12 is limited and cannot rotate, so that the relative rotation between the screw rod 1424 and the nut 1423 is realized, and the nut 1423 reciprocates under the rotation of the screw rod 1424.

Further, as shown in fig. 2, the welding apparatus 2 includes:

the arc-shaped rack b21 is fixedly arranged on the support platform 11 and arranged along the rotating direction of the working frame 13, and the arc-shaped rack b21 and the arc-shaped rack a1421 are arranged in a staggered manner and are positioned at the welding station 200; and

the gear b22, the gear b22 is coaxial with the split shaft 12 and is fixedly connected with the split shaft, and the gear b22 is meshed with the arc-shaped rack b 21.

In this embodiment, the gear b22 of the welding device 2 is used to cooperate with the arc-shaped rack b21 to realize the rotation of the split shaft 12, so as to ensure that the welding stations to be welded on the fan base 20 corresponding to each welding station are consistent, improve the efficiency of welding work, realize batch output, and simultaneously ensure that the distances between the blades are the same, thereby improving the product quality.

It should be noted that the welding operation in this embodiment is performed by a welding hand of a welding machine.

In addition, as shown in fig. 1 and 13, the blades of the welding station are all positioned on the fan base 20 through the correspondingly arranged limit frames 51, the limit frames 51 are driven by the flat push piece 52 to move to the fan base 20, and after the welding is completed, the limit frames 51 are reset along with the reset of the flat push piece 52.

Example two

As shown in fig. 11 and 12, in which the same or corresponding components as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, only the points of difference from the first embodiment will be described below for the sake of convenience. The second embodiment is different from the first embodiment in that:

further, as shown in fig. 11 and 12, the hair removing assembly 31 includes:

the connecting block 311 is arranged on the supporting platform 11 in a sliding manner and is positioned at the central position between any two blades 10; and

the control parts 312 are arranged on two sides of the connecting block 311 in pairs and are respectively polished corresponding to the welding positions with the blades 10, and each control part 312 comprises a spring b313 fixedly connected with the connecting block 311, a connecting column 314 fixedly connected with the other end of the spring b313 and vertically arranged, a knife 315 coaxially and rotatably connected with the connecting column 314, a roller 316, a linkage rod a317 hinged with the connecting block 311 and a linkage rod b318 hinged with the linkage rod a 317;

the sharpening unit 315 and the roller 316 are vertically disposed along the height direction of the connecting column 314 and are in contact with the blade 10.

Further, as shown in fig. 10, the driving assembly 32 includes:

an air cylinder 321, wherein the air cylinder 321 is installed on the support platform 11 and is arranged horizontally; and

and the extension rod 322, the extension rod 322 is fixedly connected with the telescopic end of the cylinder 321, and the other end of the extension rod is hinged with any one of the linkage rods b 318.

In this embodiment, through setting up drive assembly 32 cooperation unhairing subassembly 31, realize that several groups unhairing subassembly 31 slides along the length direction of blade 10 towards fan base 20 center, roller 316 conflicts blade 10 and rolls in the side of blade 10, and its rotation sets up and avoids sliding friction to cause wearing and tearing to blade 10, reduces product quality, guarantees simultaneously that to sharpen 315 stable to the blade welding seam work of polishing that corresponds.

Specifically, the cylinder 321 is extended, the link rod a317 is driven by the extension rod 322 through the link rod b318, the connecting block 311 is driven to slide towards the center of the fan base 20, meanwhile, the connecting block 311 drives the control members 312 connected at two sides to move synchronously, in the moving process, the spring b313 is compressed, the roller 316 abuts against the blade 10 and rolls on the side of the blade 10, and meanwhile, the knife 315 performs a polishing operation on the weld joint.

The working process is as follows:

firstly, manually sleeving a fan base 20 on a sleeve separating shaft 1411 in the area of a feeding station 100, then starting a motor 133 to rotate intermittently, wherein in the process that a branch shaft 12 rotates from the feeding station 100 to a welding station 200, a gear a1422 rotates under the action of an arc-shaped rack a1421, the gear a1422 synchronously drives a screw 1424 to rotate on the branch shaft 12, a nut 1423 is limited by a T-shaped groove of a bottom plate 1425, so that the nut 1423 moves along the length direction of the screw 1424, a pressing rod 1416 is synchronously driven to move towards the sleeve separating shaft 1411 when the nut moves, when the end part of the pressing rod 1416 is matched with the end part of a sliding block 1414, the sliding block 1414 compresses a spring a1415 and jacks up outwards along the sliding groove 3, the two sliding blocks 1414 move backwards to complete jacking on the fan base 20, the fan base 14120 is fixed on the sleeve separating shaft 1411, at the moment, the branch shaft 12 is limited by the arc-shaped groove 1431 and does not rotate, when the branch shaft 12 rotates from the feeding station 100 to the welding, welding the first blade 10, after the welding of the first blade 10 is completed, starting the motor 133 to rotate a for the second time to complete the welding of the second blade 10, and repeating the steps until the welding of all the blades 10 is completed;

finally, the finished fan blade after welding rotates to the polishing station 300 along with the split shaft 12, the air cylinder 321 extends, the extension rod 322 drives the linkage rod a317 through the linkage rod b318, the connecting block 311 is driven to slide towards the center of the fan base 20, meanwhile, the connecting block 311 drives the control pieces 312 connected at two sides to synchronously move, in the moving process, the spring b313 is compressed, the roller 316 abuts against the blade 10 and rolls on the side face of the blade 10, and meanwhile, the knife 315 performs polishing work on the weld joint.

In the description of the present invention, it is to be understood that the terms "front-back", "left-right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or component must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the invention.

Of course, in this disclosure, those skilled in the art will understand that the terms "a" and "an" should be interpreted as "at least one" or "one or more," i.e., in one embodiment, a number of an element may be one, and in another embodiment, a number of the element may be plural, and the terms "a" and "an" should not be interpreted as limiting the number.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily made by those skilled in the art in light of the technical teaching of the present invention should be included within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a be applied to fan blade kludge of air suspension centrifugal blower which characterized in that includes:

the feeding device (1) comprises a supporting table (11), a working frame (13) which is arranged in the center of the supporting table (11) and is uniformly distributed with a plurality of component shafts (12), and a screwing assembly (14) arranged on the component shafts (12), wherein the component shafts (12) are rotatably arranged on the working frame (13);

the welding device (2) is used for driving the split shaft (12) to rotate to finish the uniform loading work of the blades (10); and

the grinding device (3) is arranged in the previous process of the feeding device (1) and comprises a plurality of groups of unhairing assemblies (31) which are uniformly arranged and are arranged between two adjacent blades (10) after welding in a sliding mode and a driving assembly (32) for driving the unhairing assemblies (31) to move synchronously;

after the fan base (20) is screwed up and installed on the feeding device (1), the blades (10) are sequentially welded on the welding device (2), and finally the grinding device (3) polishes the assembled fan blades.

2. The fan blade assembling machine applied to the air suspension centrifugal blower is characterized in that any two adjacent split shafts (12) form a feeding station (100), two split shafts (12) which are positioned along the reverse direction of the rotation of a working frame (13) and are positioned on one side of the two split shafts (12) form a grinding station (300), and the split shafts (12) positioned between the feeding station (100) and the grinding station (300) form a welding station (200).

3. The fan blade assembling machine applied to the air suspension centrifugal blower fan according to claim 1, wherein a rotating member (131) is arranged below the working frame (13), the rotating member (131) comprises a mounting column (132) and a motor (133) which is arranged in the mounting column (132) and the output end of which is vertically upward, the working frame (13) is fixedly connected with the output end of the motor (133) and is rotatably arranged on the mounting column (132) through a rotating ring; the motor (133) drives the working frame (13) to rotate intermittently.

4. The fan blade assembly machine for an air-suspending centrifugal blower according to claim 2, wherein the tightening assembly (14) comprises a pressure divider (141), a transmission member (142) for driving the pressure divider (141) to fix the fan base (20) to the spindle (12), and a stopper (143) for stopping the spindle (12) at the loading station (100) from rotating.

5. The fan blade assembly machine for air-suspending centrifugal blower according to claim 4, wherein the transmission member (142) comprises:

the arc-shaped rack a (1421), the arc-shaped rack a (1421) is fixedly arranged on the support table (11) and arranged along the rotating direction of the working frame (13), and the arc-shaped rack a (1421) is positioned at the feeding station (100);

the screw rod (1424), the said screw rod (1424) is set up on the said split shaft (12) rotatably and set up coaxially with the said split shaft (12);

the gear a (1422), the gear a (1422) and the screw rod (1424) are coaxial and fixedly connected, and the gear a (1422) is meshed with the arc-shaped rack a (1421); and

the nut (1423) is arranged on a bottom plate (1425) below the split shaft (12) in a sliding mode through a support rod, and the nut (1423) is in threaded connection with the screw rod (1424).

6. The fan blade assembly machine for air-suspending centrifugal blower according to claim 5, wherein the pressure divider member (141) comprises:

one end of the sleeve separating shaft (1411) is fixedly sleeved at the end part of the screw rod (1424) and one end of the sleeve separating shaft (1411) facing the working frame (13) is arranged in a hollow structure;

the extruding units (1412) are horizontally and symmetrically arranged in the hollow part of the sleeve separating shaft (1411), and comprise sliding grooves (1413) which are formed in the sleeve separating shaft (1411) and are perpendicular to the screw rods (1424), sliding blocks (1414) which are arranged in the sliding grooves (1413) in a sliding manner, and springs (1415) of which one ends are fixedly connected with the sliding blocks (1414) and the other ends are fixedly connected with the sliding grooves (1413), wherein one ends of the sliding blocks (1414) are provided with chamfers; and

the pressing rods (1416) are arranged in two groups and are arranged corresponding to the sliding blocks (1414), the pressing rods (1416) are fixedly connected with the nuts (1423), and chamfers are arranged at the end parts of the pressing rods (1416) and are matched with the sliding blocks (1414).

7. The fan blade assembly machine for an air-suspending centrifugal blower according to claim 4, wherein the stopper (143) comprises:

the arc-shaped groove (1431), the arc-shaped groove (1431) is fixedly arranged on the supporting table (11) and is arranged along the rotating direction of the working frame (13), and the arc-shaped groove (1431) is arranged vertically upwards; and

the fixture block (1432) is fixedly arranged on the split shaft (12) and is matched with the arc-shaped groove (1431).

8. Blower blade assembly machine for air-suspending centrifugal blowers according to claim 5, wherein the welding device (2) comprises:

the arc-shaped rack b (21) is fixedly arranged on the support table (11) and arranged along the rotating direction of the working frame (13), and the arc-shaped rack b (21) and the arc-shaped rack a (1421) are arranged in a staggered mode and are positioned at the welding station (200); and

the gear b (22), the gear b (22) with split axle (12) coaxial and fixed connection, this gear b (22) with arc rack b (21) meshing setting.

9. Fan blade assembly machine for air-suspending centrifugal blowers according to claim 1, wherein the unhairing assembly (31) comprises:

the connecting block (311) is arranged on the supporting platform (11) in a sliding mode and is positioned in the center position between any two blades (10); and

the control parts (312) are arranged on two sides of the connecting block (311) in pairs and are respectively polished corresponding to the welding positions with the blades (10), and each control part (312) comprises a spring b (313) fixedly connected with the connecting block (311), a connecting column (314) fixedly connected with the other end of the spring b (313) and vertically arranged, a knife (315) coaxial with and rotatably connected with the connecting column (314), a roller (316), a linkage rod a (317) hinged with the connecting block (311) and a linkage rod b (318) hinged with the linkage rod a (317);

the sharpening (315) and the roller (316) are arranged up and down along the height direction of the connecting column (314) and are in contact with the blade (10).

10. Fan blade assembly machine for air-suspending centrifugal blowers according to claim 9, wherein the driving assembly (32) comprises:

the air cylinder (321) is installed on the support platform (11) and is arranged horizontally; and

the telescopic rod (322) is fixedly connected with the telescopic end of the air cylinder (321), and the other end of the telescopic rod (322) is hinged with any linkage rod b (318).