CN209919156U

CN209919156U - Fan blade assembly device

Info

Publication number: CN209919156U
Application number: CN201920388432.2U
Authority: CN
Inventors: 唐秀文; 黄建军
Original assignee: FOSHAN HAINAN JIUZHOU POPULA FAN Co Ltd
Current assignee: FOSHAN HAINAN JIUZHOU POPULA FAN Co Ltd; Foshan City Nanhai Jiuzhou Popula Fan Co Ltd
Priority date: 2019-03-25
Filing date: 2019-03-25
Publication date: 2020-01-10
Anticipated expiration: 2029-03-25

Abstract

The utility model discloses a fan blade assembling device, which comprises a workbench, wherein the workbench is provided with an operating surface, a top plate is arranged above the working surface, the top plate and the workbench are mutually connected through an upright post, the bottom side of the top plate is connected with a lifting plate through a lifting mechanism, the bottom side of the lifting plate is connected with a blade positioning die through a bearing, the working surface is provided with a positioning shaft sleeve which is connected with a rotation adjusting component in a transmission way, the rotation axis of the positioning shaft sleeve is arranged along the vertical direction, the blade positioning die is arranged right above the positioning shaft sleeve, the blade feeding mechanism and the welding mechanism are arranged at the side of the positioning shaft sleeve, the utility model reduces the manual operation when assembling the fan impeller, the fan blades can be automatically assembled and spliced, and the efficiency and the quality of machining and assembling are greatly improved.

Description

Fan blade assembly device

Technical Field

The utility model relates to a lathe especially relates to a fan blade assembly quality.

Background

Traditional fan wheel equipment is all through manpower welding assembly, earlier with the blade location on fan back dish, the rewelding, the front dish is installed again at last, welding position, in assembling process, easily because artificial operating error, make the blade location inaccurate, the blade rocks the influence quality during welding, weld insecure scheduling problem, thereby influence fan wheel's air output, reduce production quality, and the incident appears easily, the workman consumes great physical power when carrying fan wheel part, assembly efficiency is difficult to further improve.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: there is a need for a fan blade assembly apparatus that accomplishes automatic assembly of fan blades, reduces manual operations, and improves the efficiency and quality of the machining assembly.

The utility model provides a solution of its technical problem is: the utility model provides a fan blade assembly device, includes the workstation, be provided with the operation face on the workstation, the top of operation face is provided with the roof, the roof with through stand interconnect between 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 the rotation adjusting part, the rotation axis of location axle sleeve sets up along vertical direction, the blade positioning die set up in directly over the location axle sleeve, the side of location axle sleeve is provided with blade feed mechanism and welding mechanism.

The utility model provides a fan blade assembling device, which comprises a workbench, wherein an operation surface is arranged on the workbench, when the fan blade is assembled, a fan rear disc is firstly placed on a positioning shaft sleeve, a lifting plate is controlled to descend through a lifting mechanism, a blade positioning die is placed on the fan rear disc, a rotating adjusting component is used for driving the positioning shaft sleeve to rotate, so that the positioning shaft sleeve rotates, the fan rear disc sleeved outside the positioning shaft sleeve is driven to rotate, after the fan rear disc rotates for a certain angle, a blade is conveyed into the blade positioning die by a blade feeding mechanism, the blade positioning die plays a positioning role for the blade fed into the blade positioning die, the butt joint of the blade and the fan rear disc is welded by a welding mechanism beside the positioning shaft sleeve, the rotating adjusting component is used for driving the positioning shaft sleeve after the welding, the positioning shaft sleeve rotates for a certain angle, the blade inserted into the blade positioning die is fixedly welded with the fan rear disc, make the blade positioning die follow the rotation, after the location axle sleeve stopped rotating, blade feed mechanism continued the material loading, and is so repeated, consequently, the utility model discloses greatly improved fan blade's packaging efficiency, reduced because manual operation's error causes the problem that influences processing equipment quality, improved the productivity effect.

As a further improvement of the above technical solution, the rotation adjusting assembly includes a first connecting shaft in transmission connection with the positioning shaft sleeve, and a second rotating electrical machine connected to the top side of the workbench through a translation mechanism, the second rotating electrical machine moves back and forth along a direction close to or away from the first connecting shaft, an output end of the second rotating electrical machine is in transmission connection with a second connecting shaft, rotation axes of the second connecting shaft and the first connecting shaft are parallel to each other, one end of the first connecting shaft close to the second connecting shaft is provided with a first toothed structure, one end of the second connecting shaft close to the first connecting shaft is provided with a second toothed structure, and the first toothed structure and the second toothed structure are engaged with each other.

As a further improvement of the above technical solution, the translation mechanism includes a sliding block connected to the top side of the working table through a translation slide rail, and a telescopic cylinder fixed to the top side of the working table, an output end of the telescopic cylinder is fixedly connected to the top side of the sliding block, the second rotating electrical machine is fixedly connected to an output end of the telescopic cylinder, and the sliding block moves back and forth along a direction close to or away from the first connecting shaft.

As a further improvement of the above technical scheme, be provided with along its length direction in the location axle sleeve and run through the cavity, it is provided with the pull rod to run through the cavity, the bottom transmission of pull rod is connected with the lift cylinder, the pull rod is along vertical direction up-and-down motion, the periphery wall array of location axle sleeve is provided with a plurality of holding tank, all be provided with the tight strip that expands in the holding tank, the bottom surface of holding tank is from top to bottom along keeping away from the direction slope of location axle sleeve axis, the tight strip that expands's top articulate in the top of pull rod, the outside of location axle sleeve is provided with the spacing ring, the spacing ring set up in the below of holding tank.

As a further improvement of the above technical scheme, the blade positioning die includes a bearing connected to the connecting block and the annular array of the bottom side of the lifting plate, and the blade positioning element is arranged on the blade positioning element of the outer side wall of the connecting block, the blade positioning element includes a connecting strip connected to the outer side wall of the connecting block, a limiting plate fixedly connected to the bottom side of the connecting strip, a stop block arranged on one side of the limiting plate, a limiting strip arranged on one side of the limiting plate, and a limiting strip arranged on one side of the limiting plate, wherein the limiting plate is close to one side of the connecting block, the limiting plate is far away from one side of the connecting block, the one side of the connecting block is a telecentric side, and the.

As a further improvement of the above technical scheme, the limiting plate is close to a side of spacing strip includes first slope guide face, first plane, first slope guide face is followed the nearly heart side extremely the direction of far heart side sets gradually, first plane with the length extending direction of spacing strip is parallel to each other, with first plane place plane is first reference surface, first slope guide face extremely the distance of first reference surface is along being close to the direction of dog reduces gradually.

As a further improvement of the above technical scheme, the stopper bar is close to a side of the stopper plate includes a second inclined guiding surface and a second plane, the second plane and the second inclined guiding surface are along the proximal side to the direction of the distal side are sequentially arranged, the second plane is parallel to the length extending direction of the stopper bar, the plane where the second plane is located is a second reference plane, and the second inclined guiding surface reaches the distance of the second reference plane along the direction close to the stopper.

As a further improvement of the technical scheme, a magnetic block is embedded in one side surface of the limiting plate, which is close to the limiting strip.

As a further improvement of the above technical scheme, blade feed mechanism includes the feed bin, it is just right to go up the feed bin a side of blade positioning die is provided with the discharge gate, be provided with the storage chamber in the feed bin, be connected with vertical push pedal through vertical translation cylinder in the storage chamber, be connected with horizontal push pedal through horizontal translation cylinder in the storage chamber, vertical push pedal is along being close to or keeping away from the direction back and forth movement of discharge gate, the activity direction of horizontal push pedal with the activity direction mutually perpendicular of vertical push pedal.

As a further improvement of the technical scheme, the welding mechanism comprises a welding gun connected to the side of the workbench through a manipulator.

The beneficial effect of adopting the further scheme is that: overall structure mutually supports tightly, has improved the fixed ability to the fan back plate, and it is more convenient, rapid when the blade inserts the location, and whole practicality is higher.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures represent only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from these figures without inventive effort.

FIG. 1 is a top view of the work table of the present invention;

FIG. 2 is a schematic longitudinal sectional view of the positioning sleeve of the present invention;

FIG. 3 is a top view of the blade positioning die of the present invention;

fig. 4 is a perspective view of the blade positioning member of the present invention.

In the figure: 1-workbench, 2-operation surface, 3-positioning shaft sleeve, 4-second rotating motor, 5-second connecting shaft, 6-penetrating cavity, 7-pull rod, 8-accommodating groove, 9-expansion strip, 10-translational slide rail, 11-telescopic cylinder, 12-first connecting shaft, 13-limiting ring, 14-connecting block, 15-connecting strip, 16-limiting plate, 17-stop block, 18-limiting strip, 19-first inclined guide surface, 20-first plane, 21-magnetic block, 22-feeding bin, 23-longitudinal push plate, 24-transverse push plate, 25-longitudinal translational cylinder, 26-transverse translational cylinder, 27-manipulator and 28-welding gun.

Detailed Description

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention. In addition, all the connection relations mentioned herein do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation situation. All technical characteristics in the invention can be interactively combined on the premise of not conflicting with each other.

Referring to fig. 1, fig. 2, fig. 3, fig. 4, a fan blade assembly device, includes workstation 1, be provided with operation face 2 on the workstation 1, the top of operation face 2 is provided with the roof, the roof with through stand interconnect between the workstation 1, 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 location mould through the bearing, be provided with location axle sleeve 3 on the operation face 2, location axle sleeve 3 transmission is connected with the rotation adjusting part, the axis of rotation of location axle sleeve 3 sets up along vertical direction, the blade location mould set up in directly over location axle sleeve 3, the side of location axle sleeve 3 is provided with blade feed mechanism and welding mechanism.

From the above, the utility model provides a fan blade assembling device, which comprises a workbench 1, wherein a working surface 2 is arranged on the workbench 1, when the fan blade is assembled, a fan back plate is firstly placed on a positioning shaft sleeve 3, a lifting plate is controlled to descend through a lifting mechanism, a blade positioning die is placed on the fan back plate, the lifting mechanism comprises a lifting cylinder, the lifting plate is connected with the movable end of the lifting cylinder so as to drive the lifting plate to move up and down, a rotation adjusting component drives the positioning shaft sleeve 3 to rotate, thereby driving the fan back plate sleeved outside the positioning shaft sleeve 3 to rotate, after the fan back plate rotates for a certain angle, a blade is conveyed into the blade positioning die by a blade feeding mechanism, the blade positioning die plays a positioning role on the blade fed into the blade positioning die, and then the butt joint of the blade and the fan back plate is welded by a welding mechanism beside the positioning shaft sleeve 3, accomplish the welding back and rotate adjusting part and to 3 transmissions of location axle sleeve, make the rotatory certain angle of location axle sleeve 3, insert the blade in the blade positioning die owing to with fan back plate fixed welding for the rotation is followed to the blade positioning die, and location axle sleeve 3 stops rotatory back, and blade feed mechanism continues the material loading, and is so repeated, consequently, the utility model discloses greatly improved fan blade's packaging efficiency, reduced because manual operation's error causes the problem that influences processing equipment quality, improved productivity effect.

As a further preferred embodiment, the rotation adjusting assembly includes a first connecting shaft 12 in transmission connection with the positioning sleeve 3, and a second rotating motor 4 connected to the top side of the workbench 1 through a translation mechanism, the second rotating motor 4 moves back and forth in a direction close to or away from the first connecting shaft 12, an output end of the second rotating motor 4 is in transmission connection with a second connecting shaft 5, rotation axes of the second connecting shaft 5 and the first connecting shaft 12 are parallel to each other, one end of the first connecting shaft 12 close to the second connecting shaft 5 is provided with a first tooth structure, one end of the second connecting shaft 5 close to the first connecting shaft 12 is provided with a second tooth structure, the first tooth structure and the second tooth structure are engaged with each other, and the first connecting shaft 12 can be in transmission connection with the positioning sleeve 3 through a worm gear or a bevel gear, every location axle sleeve 3 all can rotate through manual rotatory first connecting axle 12, or through the transmission of second rotating electrical machines 4, make location axle sleeve 3 rotate, it is concrete, second connecting axle 5 passes through the drive of translation mechanism, can follow the direction back and forth movement that is close to or keeps away from first connecting axle 12, and the second dentate structure of second connecting axle 5 can be engaged with the first dentate structure of first connecting axle 12, consequently, when second connecting axle 5 is close to first connecting axle 12, and when both intermeshing, through second rotating electrical machines 4, can make location axle sleeve 3 rotate, thereby the position state of adjusting cap fan back plate outside location axle sleeve 3.

Further as preferred embodiment, translation mechanism include through translation slide rail 10 connect in the slider on 1 top side of workstation, be fixed in telescopic cylinder 11 on 1 top side of workstation, telescopic cylinder 11's output fixed connection in the top side of slider, 4 fixed connection of second rotating electrical machines in telescopic cylinder 11's output, the slider is along being close to or keeping away from the direction back and forth movement of first connecting axle 12 through the drive of telescopic cylinder 11, makes slider and 4 translation movements of second rotating electrical machines, and the cooperation motion of slider and translation slide rail 10 for second rotating electrical machines 4 is more stable when moving, reduces the shake of second connecting axle 5, and the cooperation is tighter, steady between the structure.

Further as a preferred embodiment, a through cavity 6 is arranged in the positioning shaft sleeve 3 along the length direction of the positioning shaft sleeve, a pull rod 7 is arranged in the through cavity 6, a lifting cylinder is connected to the bottom end of the pull rod 7 in a transmission manner, the pull rod 7 moves up and down along the vertical direction, a plurality of accommodating grooves 8 are formed in the array of the peripheral wall of the positioning shaft sleeve 3, tightening expansion strips 9 are arranged in the accommodating grooves 8, the bottom surfaces of the accommodating grooves 8 incline along the direction far away from the central axis of the positioning shaft sleeve 3 from top to bottom, the top ends of the tightening expansion strips 9 are hinged to the top of the pull rod 7, a limiting ring 13 is arranged on the outer side of the positioning shaft sleeve 3, the limiting ring 13 is arranged below the accommodating grooves 8, after a fan rear disc is sleeved outside the positioning shaft sleeve 3, the pull rod 7 moves downwards through the driving of the lifting cylinder, and the pull rod 7 drives the tightening expansion, the tight strip 9 that expands because the degree of depth of holding tank 8 is more and more shallow at the in-process that falls, the tight strip 9 that expands wholly deflects to the axis direction of keeping away from location axle sleeve 3 gradually to increase and the friction between the fan back plate, further to the spacing fixed of fan back plate, when location axle sleeve 3 rotates, rely on the friction to drive the fan back plate better and rotate, thereby the position state of adjustment fan back plate, the welding equipment of being convenient for.

Further as preferred embodiment, the blade positioning module includes a connecting block 14 connected to the bottom side of the lifting plate through a bearing, and an annular array arranged on a blade positioning member on the outer side wall of the connecting block 14, the blade positioning member includes a connecting strip 15 connected to the outer side wall of the connecting block 14, a limiting plate 16 fixedly connected to the bottom side of the connecting strip 15, a stopper 17 arranged on one side of the limiting plate 16, and a limiting strip 18 arranged on one side of the limiting plate 16 far away from the stopper 17, one side of the limiting plate 16 close to the connecting block 14 is a proximal side, one side of the limiting plate 16 far away from the connecting block 14 is a distal side, the length extending direction of the limiting strip 18 is parallel to the direction from the proximal side to the distal side, the blade positioning member is used for positioning each blade mounted on the impeller, and specifically, the blade positioning member includes a connecting strip 15 fixedly connected to the connecting block 14, A limit plate 16 and a limit strip 18 for limiting the blade, a stop 17 for avoiding the excessive insertion of the blade, the shapes of the blade positioning dies are different according to the different shapes of the fan impellers, and the specific expression is that the included angles between two adjacent limiting plates 16 are different, a blade positioning space is formed among the limiting strips 18, the stop blocks 17 and the limiting plates 16, when the blades are assembled on the rear cover of the fan, the whole blade positioning die is placed on the rear cover of the fan, and the blades are inserted into the blade positioning space formed by each blade positioning piece, and the blades can be welded on the rear cover of the fan after each blade is inserted, so that the assembly is very convenient, the blades do not need to be clamped and placed and then welded, the assembly efficiency is effectively improved, due to the existence of the positioning space, the welding is not easy to shake, the assembling efficiency of the fan impeller is improved, and the assembling quality of the fan impeller is improved.

Further as preferred embodiment, the limiting plate 16 is close to a side of spacing bar 18 includes first slope guide face 19, first plane 20, first slope guide face 19 is followed the nearly heart side extremely the direction of far heart side sets gradually, first plane 20 with the length extending direction of spacing bar 18 is parallel to each other, with first plane 20 place plane is first reference surface, first slope guide face 19 extremely the distance of first reference surface is followed closely the direction of dog 17 diminishes gradually, because the direction of first slope guide face 19, the blade is more convenient, quick when inserting blade location space, reduces when beginning to insert, and the collision between blade and spacing bar 18, the limiting plate 16 improves whole practicality.

Further as preferred embodiment, spacing strip 18 is close to a side of limiting plate 16 includes second slope guide face, second plane, second slope guide face is followed nearly heart side extremely the direction of far heart side sets gradually, the second plane with the length extending direction of spacing strip 18 is parallel to each other, with second plane place plane is the second reference surface, second slope guide face extremely the distance of second reference surface is followed closely the direction of dog 17 reduces gradually, and is the same, because the direction of second slope guide face, when the blade inserts blade location space convenient more, rapid, when reducing and beginning to insert, the collision between blade and spacing strip 18, limiting plate 16 improves whole practicality.

Further as a preferred embodiment, a magnet 21 is embedded in one side surface of the limiting plate 16 close to the limiting strip 18, and the magnet 21 can attract the blade inserted into the blade positioning space, so that the welding is more stable.

Further as a preferred embodiment, the blade feeding mechanism comprises a feeding bin 22, a discharge hole is arranged on one side surface of the feeding bin 22 opposite to the blade positioning die, a material storage cavity is arranged in the feeding bin 22, a longitudinal push plate 23 is connected in the material storage cavity through a longitudinal translation cylinder 25, a transverse push plate 24 is connected in the material storage cavity through a transverse translation cylinder 26, the longitudinal push plate 23 moves back and forth along the direction close to or far away from the material outlet, the moving direction of the transverse push plate 24 is vertical to the moving direction of the longitudinal push plate 23, a plurality of blades are stored in the material storage cavity, and press to the discharge gate through the horizontal push pedal 24 for arrange closely between every blade, during material loading, the blade that vertical push pedal 23 will be just right to the discharge gate is released, and the blade enters into the blade positioning mould at the discharge gate, namely enters into blade positioning space.

Further as a preferred embodiment, the welding mechanism includes a welding gun 28 connected to the side of the workbench 1 through a manipulator 27, the manipulator 27 is an existing joint mechanical movable arm, and can drive the welding gun 28 to freely move on an x axis, a y axis and a z axis, and a joint with the welding gun 28 can rotate within a hemispherical range, so that the control of the welding gun 28 is more flexible.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the details of the embodiments shown, but is capable of various modifications and substitutions without departing from the spirit of the invention.

Claims

1. The utility model provides a fan blade assembly device which characterized in that: the automatic blade positioning device is characterized by comprising a workbench (1), wherein an operation surface (2) is arranged on the workbench (1), a top plate is arranged above the operation surface (2), the top plate is connected with the workbench (1) through stand columns in an interconnected mode, the bottom side of the top plate is connected with a lifting plate through a lifting mechanism, the bottom side of the lifting plate is connected with a blade positioning die through a bearing, a positioning shaft sleeve (3) is arranged on the operation surface (2), the positioning shaft sleeve (3) is connected with a rotation adjusting assembly in a transmission mode, the rotation axis of the positioning shaft sleeve (3) is arranged in the vertical direction, the blade positioning die is arranged right above the positioning shaft sleeve (3), and a blade feeding mechanism and a welding mechanism are arranged on the side of the positioning shaft sleeve (3).

2. A fan blade assembly apparatus as claimed in claim 1, in which: the rotation adjusting assembly comprises a first connecting shaft (12) in transmission connection with the positioning shaft sleeve (3), and a second rotating motor (4) connected to the top side of the workbench (1) through a translation mechanism, wherein the second rotating motor (4) moves back and forth along the direction close to or far away from the first connecting shaft (12), the output end of the second rotating motor (4) is in transmission connection with a second connecting shaft (5), the rotation axes of the second connecting shaft (5) and the first connecting shaft (12) are parallel to each other, one end, close to the second connecting shaft (5), of the first connecting shaft (12) is provided with a first toothed structure, one end, close to the first connecting shaft (12), of the second connecting shaft (5) is provided with a second toothed structure, and the first toothed structure and the second toothed structure are meshed with each other.

3. A fan blade assembly apparatus as claimed in claim 2, in which: translation mechanism include through translation slide rail (10) connect in the slider of workstation (1) top side, be fixed in telescopic cylinder (11) of workstation (1) top side, the output fixed connection of telescopic cylinder (11) in the top side of slider, second rotating electrical machines (4) fixed connection in telescopic cylinder (11)'s output, the slider is along being close to or keeping away from the direction back and forth movement of first connecting axle (12).

4. A fan blade assembly apparatus as claimed in claim 2, in which: be provided with along its length direction in location axle sleeve (3) and run through cavity (6), it is provided with pull rod (7) in cavity (6) to run through, the bottom transmission of pull rod (7) is connected with the lift cylinder, vertical direction up-and-down motion is followed in pull rod (7), the periphery wall array of location axle sleeve (3) is provided with a plurality of holding tank (8), all be provided with bloated tight strip (9) in holding tank (8), the bottom surface of holding tank (8) is from top to bottom along keeping away from the direction slope of location axle sleeve (3) axis, the top of bloated tight strip (9) articulate in the top of pull rod (7), the outside of location axle sleeve (3) is provided with spacing ring (13), spacing ring (13) set up in the below of holding tank (8).

5. A fan blade assembly apparatus as claimed in claim 1, in which: blade location mould include through the bearing connect in connecting block (14), the annular array of lifter plate bottom side set up in the blade location spare of connecting block (14) lateral wall, the blade location spare including connect in connecting strip (15), the fixed connection of connecting block (14) lateral wall in limiting plate (16) of connecting strip (15) bottom side, set up in dog (17) of limiting plate (16) one side, set up in dog (17) are kept away from spacing strip (18) of limiting plate (16) one side, with limiting plate (16) are close to one side of connecting block (14) is the side of nearing the heart, with limiting plate (16) are kept away from one side of connecting block (14) is far away from the heart side, the length extending direction of spacing strip (18) with the direction of nearing the heart side to far away from the heart side is parallel to each other.

6. A fan blade assembly apparatus as claimed in claim 5, in which: limiting plate (16) are close to a side of spacing strip (18) includes first slope guide face (19), first plane (20), first slope guide face (19) are followed the nearly heart side extremely the direction of far heart side sets gradually, first plane (20) with the length extending direction of spacing strip (18) is parallel to each other, with first plane (20) place plane is first reference surface, first slope guide face (19) extremely the distance of first reference surface is along being close to the direction of dog (17) reduces gradually.

7. A fan blade assembly apparatus as claimed in claim 5, in which: spacing strip (18) are close to a side of limiting plate (16) includes second slope guide face, second plane, second slope guide face is followed the nearly heart side extremely the direction of far away heart side sets gradually, the second plane with the length extending direction of spacing strip (18) is parallel to each other, with second plane place plane is the second reference surface, second slope guide face extremely the distance of second reference surface is followed and is close to the direction of dog (17) reduces gradually.

8. A fan blade assembly apparatus as claimed in claim 5, in which: and a magnetic block (21) is embedded in one side surface of the limiting plate (16) close to the limiting strip (18).

9. A fan blade assembly apparatus as claimed in claim 1, in which: blade feed mechanism includes feed bin (22), it is just right to go up feed bin (22) a side of blade positioning die is provided with the discharge gate, it is provided with the storage chamber in feed bin (22) to go up, be connected with vertical push pedal (23) through vertical translation cylinder (25) in the storage chamber, be connected with horizontal push pedal (24) through horizontal translation cylinder (26) in the storage chamber, vertical push pedal (23) are along being close to or keeping away from the direction back and forth movement of discharge gate, the direction of activity of horizontal push pedal (24) with the direction of activity mutually perpendicular of vertical push pedal (23).

10. A fan blade assembly apparatus as claimed in claim 1, in which: the welding mechanism comprises a welding gun (28) which is connected to the side of the workbench (1) through a manipulator (27).