CN115156752A

CN115156752A - Fan blade welding device

Info

Publication number: CN115156752A
Application number: CN202210985715.1A
Authority: CN
Inventors: 黄闰
Original assignee: Sichuan Xinmu Ventilation Equipment Co ltd
Current assignee: Sichuan Xinmu Ventilation Equipment Co ltd
Priority date: 2022-08-17
Filing date: 2022-08-17
Publication date: 2022-10-11
Anticipated expiration: 2042-08-17
Also published as: CN115156752B

Abstract

The application relates to a fan blade welding device, and belongs to the field of fan manufacturing technology. It includes the frame, mount and support frame, the mount rotates to set up in the frame and is used for fixed fan wheel hub, be provided with the setting element on the mount, the setting element is used for carrying on spacingly to the turned angle of mount, the support frame sets up in the frame and is used for supporting the flabellum, the support frame includes the bottom plate, the support column and places the board, the bottom plate slides and sets up in the frame, the vertical setting of support column is on the bottom plate, it rotates and sets up on the support column to place the board, it is provided with fixed subassembly to place on the board, fixed subassembly is used for fixing the flabellum on placing the board, be provided with the removal subassembly in the frame, the removal subassembly is used for driving the support frame to be close to or keep away from the mount, be provided with rotating assembly on the support column, rotating assembly is connected with placing the board and is used for the drive to place the board and rotates. The problem that the angle and the position of flabellum are difficult to control in welding process can be improved in this application.

Description

Fan blade welding device

Technical Field

The application relates to the field of fan manufacturing technology, in particular to an exhaust fan blade welding device.

Background

The fan drives the fan blades to rotate through the motor to drive airflow, so that indoor air and outdoor air are exchanged. The fan can play the effect of adjusting indoor temperature, humidity, discharge indoor smoke and dust. The fan blades are the core components of the fan, and in production, the fan blades are generally welded to the hub of the fan by an operator.

Function, the power of fan are various, lead to the fan model numerous, and the flabellum specification of different fans is different, and the angle of last welded flabellum quantity of fan wheel hub and flabellum is all inequality, and the general welding of mixed flow fan has eight flabellums, and the general welding of fire control axial fan has six flabellums.

According to the related technology, when the fan blades of the fan are manually welded by workers, the workers are required to hold the angles and the intervals of the fan blades, the welding angles and the welding positions of the fan blades are not easy to control, and the defective rate of products is high.

Disclosure of Invention

In order to improve the problem that the angle and the position of flabellum are difficult to control among the welding process, this application provides a fan flabellum welding set.

The application provides a fan blade welding set adopts following technical scheme:

the utility model provides a fan flabellum welding set, includes frame, mount and support frame, the mount rotates to set up in the frame and is used for fixed fan wheel hub, be provided with the setting element on the mount, the setting element is used for carrying on spacingly to the turned angle of mount, the support frame sets up in the frame and is used for supporting the flabellum, the support frame includes bottom plate, support column and places the board, the bottom plate slides and sets up in the frame, the vertical setting of support column is on the bottom plate, it rotates to set up on the support column to place the board, it is provided with fixed subassembly on the board to place, fixed subassembly is used for fixing the flabellum on placing the board, be provided with the removal subassembly in the frame, the removal subassembly is used for driving the support frame and is close to or keeps away from the mount, be provided with runner assembly on the support column, runner assembly with place the board and be connected and be used for the drive to place the board and rotate.

Through adopting above-mentioned technical scheme, install fan wheel hub at the top of mount, place the flabellum on placing the board, adjust the distance of placing between board and fan wheel hub through removing the subassembly, and according to the installation angle of flabellum, place the board through the runner assembly drive and rotate, the flabellum is fixed on placing the board and inconsistent with fan wheel hub through fixed subassembly, the workman with flabellum and wheel hub welded connection can, after the flabellum welding is accomplished, utilize setting element drive mount to rotate appointed angle, in proper order with many flabellums welding at fan wheel hub capable, thereby make the angle homogeneous phase between many flabellums and fan wheel hub the same, the interval of many blades on fan wheel hub is also the same, thereby improve the difficult problem of control of angle and position of flabellum in the welding process.

Optionally, place still to be provided with the bin that is used for storing many flabellums on the board, the bin is close to and sets up the discharge gate that supplies the sola flabellum to come in and go out on placing the lateral wall of board, it is provided with the promotion subassembly to place on the board, the promotion subassembly is used for pushing out the flabellum to inconsistent with fan wheel hub from the bin.

By adopting the technical scheme, a plurality of fan blades are stored in the storage box according to the number of the fan blades welded on the fan hub, the fan blades in the storage box are sequentially pushed to be abutted against the fan hub along the placing plate by utilizing the pushing assembly, the plurality of fan blades are stored in the storage box, and the fan blades do not need to be placed on the placing plate one by one, so that the processing efficiency is improved; meanwhile, the pushing assembly is convenient for moving the fan blades to be abutted to the fan hub.

Optionally, promote the subassembly and include multistage cylinder and push pedal, multistage cylinder sets up on placing the board and is located the bin and deviates from fan wheel hub's one side, multistage cylinder's piston rod extends towards fan wheel hub, the push pedal sets up the end at multistage cylinder's piston rod, multistage cylinder drive push pedal passes through the discharge gate and extends to in the bin.

Through taking above-mentioned technical scheme, multistage cylinder starts, and multistage cylinder's piston rod stretches out or withdraws, drives the push pedal and gets into or leave the bin on placing the board to with the flabellum in the bin promote towards fan wheel hub, reach the effect that the drive flabellum of being convenient for removed.

Optionally, fixed subassembly includes pivot and support tight pole, the pivot level is rotated and is set up on bin one side lateral wall towards fan wheel hub, support tight pole setting in the pivot, be provided with volute spiral spring in the pivot, volute spiral spring one end and pivot fixed connection, the other end and bin fixed connection, volute spiral spring makes to support tight pole and has the orientation all the time and place board pivoted trend.

Through taking above-mentioned technical scheme, promote out the scope back of bin with the flabellum towards fan wheel hub, support the tight pole and have the orientation all the time under volute spiral spring's effect and place board pivoted trend for support the tight pole all the time and support tightly on the flabellum, reach and be convenient for fix the effect on placing the board with the flabellum.

Optionally, be provided with many springs on the interior roof of bin, the end of spring is provided with supports tight board, the spring makes to support tight board and has the trend that the board removed is placed to the orientation all the time.

Through adopting above-mentioned technical scheme, the spring makes to support the board to have the trend that the board removed is placed to the orientation all the time to the spring promotes to support tightly the board and supports tightly on placing the board with many flabellums in the storage box, is convenient for promote out of the storage box with flabellum in the storage box one by one.

Optionally, the moving assembly comprises a guide rail and a telescopic cylinder, the guide rail is arranged on the frame and extends towards the hub, the bottom plate is arranged on the guide rail in a sliding manner, the telescopic cylinder is arranged on the frame and is parallel to the guide rail, and a piston rod of the telescopic cylinder is connected with the bottom plate.

By adopting the technical scheme, the telescopic cylinder is started, the piston rod of the telescopic cylinder extends out or retracts to drive the bottom plate to move along the length direction of the guide rail on the rack, and the effect of conveniently adjusting the distance between the placing plate and the fan hub is achieved.

Optionally, an accommodating groove is formed in the side wall of the supporting column along the length direction of the supporting column, a lead screw is arranged on the supporting column and in the accommodating groove in a rotating mode, a driving motor is arranged at the top end of the supporting column, an output shaft of the driving motor is fixedly connected with the coaxial line of the lead screw, a sliding block is arranged in the accommodating groove in a sliding mode, the sliding block is penetrated through by lead screw threads, and the placing plate is arranged on the sliding block.

Through taking above-mentioned technical scheme, start driving motor, driving motor's output shaft drive lead screw rotates, and drive slider removes along the length direction of holding tank when the lead screw rotates to the board is placed in the drive and moves on vertical direction, reaches the effect of being convenient for adjust the height of placing the board, with the fan wheel hub who is applicable to different model sizes.

Optionally, the rotating assembly includes a rotating motor, the rotating motor is disposed on the sliding block, and an output shaft of the rotating motor is connected to the placing plate.

Through taking above-mentioned technical scheme, the start rotates the motor, and the output shaft that rotates the motor drives and places the board and rotate, places the angle between board and the fan wheel hub according to the design requirement regulation of different fans to reach and be convenient for adjust the effect of placing the angle between flabellum on the board and the fan wheel hub.

Optionally, the setting element includes carousel and bolt, the carousel sets up in the bottom of mount, equidistant the encircleing has seted up a plurality of through-holes on the carousel, just be located the carousel below in the frame and seted up the locating hole, the bolt passes through-hole and locating hole.

Through adopting above-mentioned technical scheme, rotate the mount, rotate a plurality of through-holes on the carousel in proper order to just right with the locating hole, insert the bolt in through-hole and locating hole, fix the mount to reach the effect that is convenient for drive mount rotation the same angle and is fixed, make a plurality of flabellums equidistant install on fan wheel hub.

Optionally, a suction cup is arranged at the top of the fixing frame, and an air suction pump is arranged on the fixing frame and communicated with the suction cup.

Through taking above-mentioned technical scheme, place fan wheel hub on the mount, start the aspiration pump, adsorb fan wheel hub through the sucking disc and fix on the mount, reach the effect of being convenient for fixed fan wheel hub.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the fan hub is arranged at the top of the fixing frame, the fan blades are placed on the placing plate, the distance between the placing plate and the fan hub is adjusted through the moving assembly, the placing plate is driven to rotate through the rotating assembly according to the installation angle of the fan blades, the fan blades are fixed on the placing plate through the fixing assembly and are abutted against the fan hub, workers can weld the fan blades and the hub, after the fan blades are welded, the fixing frame is driven to rotate through a specified angle by the aid of the positioning piece, a plurality of fan blades are sequentially welded on the fan hub, accordingly, the angles between the fan blades and the fan hub are the same, the distances among the blades on the fan hub are also the same, and the problem that the angles and the positions of the fan blades are not easy to control in the welding process is solved;

2. the spring enables the abutting plate to always have the trend of moving towards the placing plate, so that the spring pushes the abutting plate to abut against a plurality of fan blades in the storage box on the placing plate, and the fan blades in the storage box are conveniently pushed out of the storage box one by one;

3. fixed subassembly includes the pivot and supports tight pole, promotes out the scope back of bin with the flabellum towards fan wheel hub, supports tight pole and has all the time to place board pivoted trend towards under volute spiral spring's effect for support tight pole and support tightly on the flabellum all the time, reach and be convenient for fix the effect on placing the board with the flabellum.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present application.

Fig. 2 is a partial schematic view for illustrating the structure of the fixing frame in the embodiment of the present application.

Fig. 3 is a partial schematic view for showing the supporting frame structure in the embodiment of the present application.

Fig. 4 is a partial schematic view for illustrating the structure of the storage box in the embodiment of the present application.

Description of the reference numerals:

1. a frame; 2. a fixed mount; 21. a suction cup; 22. an air pump; 3. a positioning member; 31. a turntable; 311. a through hole; 32. a bolt; 4. a support frame; 41. a base plate; 42. a support column; 421. accommodating grooves; 422. a lead screw; 423. a drive motor; 424. a slider; 43. placing a plate; 5. a fixing component; 51. a rotating shaft; 52. a tightening rod; 53. a volute spiral spring; 6. a moving assembly; 61. a guide rail; 62. a telescopic cylinder; 7. a rotating assembly; 71. rotating the motor; 8. a storage tank; 81. a discharge port; 82. a multi-stage cylinder; 83. pushing a plate; 84. a spring; 85. and a support plate.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a fan blade welding device, and referring to fig. 1, the fan blade welding device comprises a rack 1, a fixed frame 2 and a support frame 4, wherein the rack 1 is in a long table shape, the fixed frame 2 is rotationally arranged on the rack 1, a positioning part 3 is arranged on the fixed frame 2, and when the fixed frame 2 is driven to rotate, the rotating angle of the fixed frame 2 is limited through the positioning part 3, so that the rotating angles of the fixed frame 2 at each time are the same; support frame 4 installs in frame 1 and is located one side of mount 2, and support frame 4 is used for supporting the flabellum and places, and support frame 4 includes bottom plate 41, support column 42 and places board 43, and bottom plate 41 is the rectangular plate body with place board 43, and bottom plate 41 is kept flat in frame 1, and support column 42 is the rectangular cylinder and the vertical fixed mounting of support column 42 on bottom plate 41, places board 43 and rotates and install on support column 42. A fixing component 5 is arranged on the placing plate 43, and the fixing component 5 is used for fixing the fan blades placed on the placing plate 43; a moving component 6 is arranged on the frame 1, and the moving component 6 is used for driving the support frame 4 to approach or depart from the fixed frame 2; a rotating assembly 7 is further mounted on the supporting column 42, and the rotating assembly 7 is connected with the placing plate 43 and is used for driving the placing plate 43 to rotate.

The fan hub is arranged on the fixed frame 2, the fan blades to be welded on the fan hub are fixedly arranged on the placing plate 43 through the fixing component 5, and the moving component 6 drives the supporting column 42 to be close to or far away from the fixed frame 2, so that the distance between the fan blades on the placing plate 5 and the fan hub is adjusted; the rotating assembly 7 drives the placing plate 43 to rotate, and the angle between the fan blade and the hub of the fan is adjusted; meanwhile, the positioning piece 3 enables the fixed seat to rotate by the same angle each time; according to the design requirements of different fans, the angles and the intervals of the fan blades are adjusted, so that the angles and the intervals of the fan blades on the fan hub are the same, and the defective rate of the fans is reduced.

Referring to fig. 1 and 2, the fixing frame 2 is a cylinder, the fixing frame 2 is vertically and rotatably installed on the rack 1, a suction cup 21 is fixedly installed at the top end of the fixing frame 2, an air suction pump 22 is fixedly installed at one side of the fixing frame 2, and the air suction pump 22 is communicated with the suction cup 21. The fan hub is placed on the fixing frame 2, the air pump 22 is started to pump out air in the suction disc 21, and the fan hub is fixed at the top end of the fixing frame 2 in an adsorption mode. The locating piece 3 comprises a turntable 31 and a bolt 32, the turntable 31 is fixedly connected with the bottom of the fixing frame 2 coaxially, a plurality of through holes 311 are formed in the turntable 31, the through holes 311 are divided into a plurality of groups, the through holes 311 are respectively located in the circumferential direction of concentric circles, the through holes 311 in the same group are arranged at equal intervals, and the through holes 311 in the multiple groups are different in number. A plurality of positioning holes are formed in the frame 1 and below the turntable 31, the plurality of positioning holes are opposite to one radius of the turntable 31, and the plurality of positioning holes are opposite to the plurality of groups of through holes 311 respectively. According to the design requirements of different fans, the number of the fan blades on different fans is different, a group of through holes 311 with the same number as the fan blades is selected, one of the group of through holes 311 is rotated to be opposite to the positioning hole, the bolt 32 penetrates through the through holes 311 and the positioning hole, and the fixing frame 2 is fixedly installed at the current position. After the fan blades are welded, the rotating disc 31 is rotated until the next through hole 311 is opposite to the positioning hole and the plug pin 32 is inserted, and the next fan blade is welded. Therefore, the fan hub is ensured to rotate by the same angle every time, and the distances among the plurality of fan blades are the same.

Referring to fig. 1 and 3, the moving assembly 6 includes a guide rail 61 and a telescopic cylinder 62, two guide rails 61 are mounted on the frame 1 in parallel, the two guide rails 61 all extend toward the fan hub, a sliding groove matched with the guide rail 61 is formed in the bottom of the base plate 41, the cross section of each guide rail 61 is i-shaped, the cross section of each sliding groove is T-shaped, and the base plate 41 is slidably mounted on the guide rails 61 through the sliding groove. Telescopic cylinder 62 installs in frame 1 and is located one side that support frame 4 deviates from fan wheel hub, and telescopic cylinder 62 is on a parallel with guide rail 61, and telescopic cylinder 62's piston rod extends towards bottom plate 41 and is connected with bottom plate 41. Starting telescopic cylinder 62, telescopic cylinder 62's piston rod stretches out or withdraws, drives bottom plate 41 and removes on guide rail 61 to the drive is placed board 43 and is close to or keeps away from fan wheel hub, thereby realizes the effect of adjusting the distance between flabellum and the fan wheel hub. A stop lever is arranged on one side edge of the placing plate 43 close to the rack 1, and after the fan blades move out of the storage box 8, one side of the fan blades is abutted against the stop lever, so that the fan blades are prevented from being separated from the inclined placing plate 43.

Referring to fig. 1 and 3, an accommodating groove 421 is formed in a side wall of one side of the supporting column 42 along a length direction of the supporting column 42, a screw 422 is rotatably mounted on the supporting column 42 and located in the accommodating groove 421, a driving motor 423 is mounted at the top end of the supporting column 42, and an output shaft of the driving motor 423 vertically extends downwards and is fixedly connected with the screw 422 in a coaxial line manner. Sliding mounting has slider 424 in holding tank 421, and lead screw 422 screw thread is worn to establish slider 424, and outside the one end of slider 424 extended to support column 42, it rotated and is installed on slider 424 to place board 43. Start driving motor 423, driving motor 423 drive lead screw 422 rotates, and lead screw 422 is carrying out the pivoted in-process, and slider 424 removes along the length direction of holding tank 421 to the drive is placed board 43 and is placed the flabellum on the board 43 and move in vertical direction, adjusts the height of flabellum, with the flabellum welding height of the fan of satisfying different models.

Referring to fig. 3, the rotating assembly 7 includes a rotating motor 71, the rotating motor 71 is installed at one end of the sliding block 424 located outside the supporting column 42, the rotating motor 71 is located at one side of the sliding block 424 departing from the fan hub, an output shaft of the rotating motor 71 extends towards the fan hub, and the output shaft of the rotating motor 71 passes through the sliding block 424 and then is fixedly connected with the placing plate 43. The rotating motor 71 is started, the rotating motor 71 drives the placing plate 43 to rotate, and then the inclination angle of the fan blades on the placing plate 43 is adjusted to meet the welding angles of the fan blades of fans of different models.

Referring to fig. 3 and 4, storage box 8 is also installed at the end of placing plate 43 away from fan hub, and storage box 8 is the rectangular box that lower extreme opening set up, can store many flabellums in storage box 8, and storage box 8 opening is installed down on placing plate 43, and storage box 8 passes through bolt demountable installation on placing plate 43. Discharge ports 81 are formed in two side walls, which are connected with the placing plate 43 and are opposite to the fan hub, of the storage box 8, the bottoms of the discharge ports 81 are flush with the placing plate 43, and the height of each discharge port 81 is larger than the thickness of one fan blade and smaller than the thickness of two fan blades. A pushing assembly for pushing out the fan blades placed in the storage box 8 from the discharge port 81 and moving toward the fan hub is further mounted on the placing plate 43.

Referring to fig. 3 and 4, the pushing assembly includes a multi-stage cylinder 82 and a push plate 83, the multi-stage cylinder 82 is installed on the placing plate 43 and located on one side of the storage box 8 departing from the fan hub, a piston rod of the multi-stage cylinder 82 extends towards the storage box 8 towards the horizontal direction, the push plate 83 is a rectangular frame body, the push plate 83 is horizontally placed on the placing plate 43 and connected with the piston rod of the multi-stage cylinder 82, and the length direction of the push plate 83 is perpendicular to the length direction of the multi-stage cylinder 82.

Referring to fig. 4, a plurality of springs 84 are mounted on the inner top wall of the storage box 8, the plurality of springs 84 extend perpendicular to the placing plate 43 and extend toward the placing plate 43, a tightening plate 85 is mounted at the end of the spring 84, the surface of the tightening plate 85 is parallel to the surface of the placing plate 43, and the spring 84 makes the tightening plate 85 always have a tendency to move toward the placing plate 43.

The multistage cylinder 82 is started, a piston rod of the multistage cylinder 82 extends out and pushes the push plate 83 to move into the storage box 8 from the discharge hole 81 on one side deviating from the fan hub, and the push plate 83 pushes the fan blades on the lowest layer in the storage box 8 to be pushed out from the discharge hole 81 on one side close to the fan hub, and pushes the fan blades to be inconsistent with the fan hub. After the fan blade of the lowest layer moves out of the storage box 8 in the storage box 8, the fan blade of the upper layer moves under the action of the spring 84 to abut against the placing plate 43, and then the fan blade is sequentially pushed out of the storage box 8 through the push plate 83. The push plate 83 is a rectangular frame, when the push plate 83 pushes the fan blades to move outside the storage box 8, part of the push plate 83 is still located inside the storage box 8, and at the moment, the upper layer of the fan blades abut against the push plate 83 tightly, so that the fan blades cannot tightly clamp the piston rod of the multistage cylinder 82 inside the storage box 8 under the action of the spring 84, and the push plate 83 can be retracted conveniently.

Referring to fig. 4, the fixing assembly 5 includes a rotating shaft 51 and a tightening rod 52, the rotating shaft 51 is horizontally rotatably mounted on a side wall of the storage box 8 facing the fan hub through a hinge seat, a length direction of the rotating shaft 51 is parallel to a plate surface of the placing plate 43, the tightening rod 52 is fixedly connected to the rotating shaft 51 and perpendicular to the rotating shaft 51, two tightening rods 52 are parallelly mounted on the rotating shaft 51, and a tightening ball is processed at a tail end of the tightening rod 52. The rotating shaft 51 is sleeved with a scroll spring 53, an inner ring of the scroll spring 53 is fixedly connected with the rotating shaft 51, an outer ring of the scroll spring 53 is fixedly connected with the storage box 8, the scroll spring 53 enables the rotating shaft 51 to always have a tendency of rotating towards the placing plate 43, and therefore the abutting rod 52 always has a tendency of abutting against the placing plate 43.

The flabellum removes out bin 8 and moves extremely towards fan wheel hub, and the flabellum promotes to support tight board 85 and rotates, and supports tight board 85 and support the flabellum tightly all the time on placing board 43, is convenient for fix to supporting tight board 85, and the flabellum takes place relative movement when avoiding welding the flabellum on fan wheel hub, influences the welding quality of flabellum. After the fan blades are welded, when the hub of the driving fan rotates to the next welding position, the fan blades push the abutting rod 52 to deviate from the placing plate 43 to rotate, and after the fan blades are separated from the abutting rod 52, the abutting rod 52 rotates again under the action of the volute spiral spring 53 to be abutted to the placing plate 43.

The implementation principle of the fan blade welding device in the embodiment of the application is as follows: placing a plurality of fan blades in the storage box 8, installing the storage box 8 on the placing plate 43, installing the fan hub at the top end of the fixing frame 2, starting the telescopic cylinder 62, and adjusting the distance between the placing plate 43 and the fan hub; starting a driving motor 423, and adjusting the height of the placing plate 43 to be opposite to the welding position of the fan blade of the fan hub; according to the design requirement of the inclination angle of the fan blades of the fan, the rotating motor 71 is started and the placing plate 43 is rotated to a corresponding inclination angle; pushing the fan blades in the storage box 8 out of the storage box 8 and moving the fan blades to be abutted against the fan hub, and welding the fan blades on the fan hub; sequentially rotating the fixed frame 2 by the angle of one through hole 311 and fixing, and sequentially welding a plurality of fan blades; the angles and the distances of the fan blades on the fan hub are the same.

Finally, it should be noted that: in the description of the present application, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, which are merely for convenience of description and simplification of description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a fan flabellum welding set which characterized in that: including frame (1), mount (2) and support frame (4), mount (2) rotate to set up in frame (1) and are used for fixed fan wheel hub, be provided with setting element (3) on mount (2), setting element (3) are used for carrying on spacingly to the turned angle of mount (2), support frame (4) set up in frame (1) and are used for supporting the flabellum, support frame (4) include bottom plate (41), support column (42) and place board (43), bottom plate (41) slide to set up in frame (1), support column (42) vertical setting is on bottom plate (41), it rotates to set up on support column (42) to place board (43), it is provided with fixed subassembly (5) on board (43) to place, fixed subassembly (5) are used for fixing the flabellum on placing board (43), be provided with removal subassembly (6) on frame (1), removal subassembly (6) are used for driving support frame (4) to be close to or keep away from mount (2), be provided with rotating assembly (7) on support column (42), rotating assembly (7) are used for placing board (43) and are connected with placing board (43).

2. The fan blade welding device of claim 1, wherein: place still be provided with bin (8) that are used for storing many flabellums on board (43), bin (8) are close to and offer discharge gate (81) that supply the sola flabellum to come in and go out on the lateral wall of placing board (43), it promotes the subassembly to place to be provided with on board (43), it is used for pushing out the flabellum to inconsistent with fan wheel hub from bin (8) to promote the subassembly.

3. The fan blade welding device of claim 2, wherein: promote the subassembly and include multistage cylinder (82) and push pedal (83), multistage cylinder (82) set up on placing board (43) and lie in storage box (8) and deviate from one side of fan wheel hub, the piston rod of multistage cylinder (82) extends towards fan wheel hub, push pedal (83) set up the end at the piston rod of multistage cylinder (82), multistage cylinder (82) drive push pedal (83) extend to storage box (8) in through discharge gate (81).

4. The fan blade welding device of claim 2, wherein: fixed subassembly (5) are including pivot (51) and support tight pole (52), pivot (51) horizontal rotation sets up on bin (8) one side lateral wall towards fan wheel hub, support tight pole (52) and set up on pivot (51), be provided with volute spiral spring (53) on pivot (51), volute spiral spring (53) one end and pivot (51) fixed connection, the other end and bin (8) fixed connection, volute spiral spring (53) make to support tight pole (52) to have the orientation all the time and place board (43) pivoted trend.

5. The fan blade welding device of claim 2, wherein: the inner top wall of the storage box (8) is provided with a plurality of springs (84), the tail ends of the springs (84) are provided with abutting plates (85), and the springs (84) enable the abutting plates (85) to have a trend of moving towards the placing plate (43) all the time.

6. The fan blade welding device of claim 1, wherein: remove subassembly (6) including guide rail (61) and telescopic cylinder (62), be provided with guide rail (61) on frame (1), guide rail (61) extend towards fan wheel hub, bottom plate (41) slide to set up on guide rail (61), telescopic cylinder (62) set up in frame (1) and are parallel with guide rail (61), telescopic cylinder (62)'s piston rod is connected with bottom plate (41).

7. The fan blade welding device of claim 1, wherein: holding tank (421) have been seted up along the length direction of support column (42) on the lateral wall of support column (42), support column (42) are gone up and are located holding tank (421) internal rotation and are provided with lead screw (422), the top of support column (42) is provided with driving motor (423), the output shaft and lead screw (422) coaxial line fixed connection of driving motor (423), it is provided with slider (424) to slide in holding tank (421), slider (424) are worn to establish by lead screw (422) screw thread, place board (43) and set up on slider (424).

8. The fan blade welding device of claim 7, wherein: the rotating assembly (7) comprises a rotating motor (71), the rotating motor (71) is arranged on the sliding block (424), and an output shaft of the rotating motor (71) is connected with the placing plate (43).

9. The fan blade welding device of claim 1, wherein: locating piece (3) are including carousel (31) and bolt (32), carousel (31) set up in the bottom of mount (2), equidistant encircleing has seted up a plurality of through-holes (311) on carousel (31), the locating hole has been seted up just to be located carousel (31) below on frame (1), bolt (32) pass through-hole (311) and locating hole.

10. The fan blade welding device of claim 1, wherein: the top of the fixing frame (2) is provided with a sucking disc (21), and the fixing frame (2) is provided with an air suction pump (22) communicated with the sucking disc (21).