Fan wheel automatic welding device

Abstract

The application relates to the field of welding technology, and discloses an automatic fan impeller welding device, which comprises a support frame, the support frame is used as a carrier to bear welding components, the middle outer surface of the support frame is rotationally connected with a rotatable rotary table, the upper end of the rotary table is placed with an impeller disc, a rotating part, the rotating part comprises a rotating cover plate, the rotating cover plate is located above the impeller disc, blades are welded on the surface of the impeller disc, an alignment clamping motor is used to simultaneously drive the upper rotating plate and the lower rotating plate to cooperate with the lower clamping rod and the upper clamping rod, so that the blades are clamped and fixed in four directions, the upper rotating plate and the lower rotating plate realize relative movement through planetary gears, four-way fixing is realized through the alignment clamping motor, a bearing plate is fixedly connected to the lower end of the alignment clamping motor, a calibration plate driven by a calibration spring is arranged at the lower end of the bearing plate, the calibration plate provides further limiting for the blades, and six-way clamping is realized in cooperation with the above structure.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of welding, in particular to a fan impeller automatic welding device. BACKGROUND

[0002] The fan impeller is a main ventilation appliance in the industrial field, and in the welding process, a single blade is placed on the surface of the impeller disc through a blade indexing assembly, and then the approximate position of the blade is fixed and limited through manual spot welding, and then automatic welding is performed by a mechanical hand. The blade indexing assembly generally indexes the blade through an angle-adjustable baffle, but the angle of the baffle of the blade indexing assembly needs to be manually controlled, and the blade also needs to be manually assisted, and then manual spot welding is performed. The whole process excessively depends on manual operation, which is not conducive to the rapid automatic welding of the impeller.

[0003] Therefore, the present application provides a fan impeller automatic welding device. SUMMARY

[0004] The present application aims to provide a fan impeller automatic welding device to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a fan impeller automatic welding device, comprising a support frame, the support frame serving as a carrier to bear welding components, a rotatable rotary table being rotatably connected to the outer surface of the middle of the support frame, and an impeller disc being placed on the upper end of the rotary table.

[0006] A rotating member, the rotating member comprising a rotating cover plate, the rotating cover plate being located above the impeller disc, blades being welded on the surface of the impeller disc, the rotating member being capable of rotating the surface of the impeller disc to facilitate the welding of the blades by a welding robot, and a self-calibration assembly being rotatably connected to the lower end of the rotating cover plate to calibrate the blades.

[0007] The rotating member further comprises a gear ring, the gear ring being rotatably connected to the outer surface of the lower end of the rotating cover plate through a bearing, the outer surface of the gear ring being engaged with a wheel rim driving gear, the upper end of the wheel rim driving gear being fixedly connected with a wheel rim motor, and the wheel rim motor being fixedly connected to the outer surface of the upper end of the rotating cover plate.

[0008] The self-calibration assembly comprises a calibration clamping motor, the output end of the calibration clamping motor is fixedly connected with a lower rotating body, the annular outer surface of the lower rotating body is fixedly connected with a lower rotating plate, the lower end outer surface of the lower rotating plate close to both ends is rotatably connected with a lower clamping rod through a rotating shaft, the lower end outer surface of the calibration clamping motor is rotatably connected with an upper rotating ring through a rotating ring, the annular outer surface of the upper rotating ring is fixedly connected with an upper rotating plate, the lower end outer surface of the upper rotating plate close to both ends is rotatably connected with an upper clamping rod, and the overall top view of the upper rotating plate and the lower rotating plate is designed as an X shape.

[0009] The lower end outer surface of the calibration clamping motor is fixedly connected with a planet lever in an L shape, the other end of the planet lever is rotatably connected with a planet gear through a rotating shaft, the adjacent surfaces of the upper rotating ring and the lower rotating body are provided with gear grooves at positions aligned with the planet gear, and are meshed with the planet gear, and the planet levers are fixedly connected with a reinforcing ring.

[0010] The outer surface of the calibration clamping motor is fixedly connected with a bearing plate, the lower end outer surface of the bearing plate is provided with a calibration groove, the calibration groove is slidably connected with a calibration sliding block, the lower end outer surface of the calibration sliding block is fixedly connected with a calibration plate, and the calibration groove and the calibration sliding block are fixedly connected with a calibration spring.

[0011] The end of the calibration sliding block away from the calibration plate is rotatably connected with a triangular plate, the triangular plate is an isosceles acute triangle, the lower rotating plate and the upper rotating plate are rotatably connected with a lower calibration block and an upper calibration block through rotating shafts at corresponding positions of the triangular plate, the two sides of the isosceles of the triangular plate are provided with convex strips, the upper calibration block and the lower calibration block are provided with grooves at corresponding positions of the convex strips, and the two are matched with each other.

[0012] The self-calibration assembly further comprises a wheel edge driven gear, the upper end outer surface of the wheel edge driven gear is rotatably connected with the rotating cover plate through a rotating shaft, the wheel edge driven gear is meshed with the gear ring, and the lower end outer surface of the wheel edge driven gear is fixedly connected with the calibration clamping motor.

[0013] The lower end outer surface of the lower rotating body is provided with a guide groove, the guide groove is slidably connected with a guide rod, the lower end outer surface of the guide rod is fixedly connected with a pressing plate, the diameter of the pressing plate is greater than that of the lower rotating body, and the lower rotating body and the pressing plate are fixedly connected with a lower pressing spring.

[0014] The present application has at least the following advantages:

[0015] A single calibration clamping motor simultaneously drives the upper and lower rotating plates to cooperate with the lower and upper clamping rods, clamping and fixing the blade in four directions and limiting the clamping of the blade. The upper and lower rotating plates achieve relative movement through planetary gears, and the four-way fixation is achieved by a single calibration clamping motor.

[0016] By fixing a support plate to the lower end of the calibration clamping motor, and setting a calibration plate driven by a calibration spring at the lower end of the support plate, the calibration plate provides further limiting for the blade. In conjunction with the above structure, six-way clamping is achieved (the lower and upper clamping rods have lengths to prevent blade tilting; two sets of lower clamping rods and two sets of upper clamping rods provide four sets of forces to clamp the blade in four directions; the calibration plate, through the rotation of the upper and lower rotating plates, drives the upper and lower calibration blocks to clamp the triangular plate, and the six-way clamping is completed under the push of the triangular plate; at the same time, the calibration spring can increase the stability of the triangular plate), improving the consistency of the blade during the welding process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a schematic diagram showing the positions of the rotating component and the self-calibration assembly of the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of the gear ring and the driven gear on the wheel side of the present invention;

[0020] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle;

[0021] Figure 5 This is a schematic diagram of the structure of the self-calibration component of the present invention;

[0022] Figure 6 This is a schematic diagram of the self-calibration component and blade of the present invention;

[0023] Figure 7 This is a top-view exploded view of the self-calibration component of the present invention;

[0024] Figure 8 This is a bottom-view exploded view of the self-calibration component of the present invention.

[0025] In the diagram: 1. Support frame; 10. Welding robot; 11. Turntable; 12. Impeller disk; 13. Blade; 2. Rotating component; 20. Rotating cover plate; 21. Wheel-side motor; 22. Gear ring; 23. Wheel-side drive gear; 3. Self-calibration component; 30. Calibration clamping motor; 31. Wheel-side driven gear; 32. Bearing plate; 33. Upper rotating ring; 34. Upper rotating plate; 35. Lower rotating body; 36. Lower rotating plate; 37. Gear groove; 38. Planetary gear; 39. Upper clamping rod; 40. Lower clamping rod; 41. Calibration plate; 42. Calibration groove; 43. Lower pressure plate; 44. Triangular plate; 45. Calibration slider; 46. Calibration spring; 47. Upper calibration block; 48. Lower calibration block; 49. Planetary rod; 50. Reinforcing ring; 51. Guide rod; 52. Lower pressure spring; 53. Guide groove. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Please see Figure 1 - Figure 8 The present invention provides a technical solution: an automatic welding device for wind turbine impellers, including a support frame 1, the support frame 1 serving as a carrier to support the welding components, a rotatable turntable 11 rotatably connected to the middle outer surface of the support frame 1, an impeller disk 12 placed at the upper end of the turntable 11, and a welding robot 10 provided on one side of the support frame 1.

[0028] The rotating component 2 includes a rotating cover plate 20. A lifting mechanism is fixedly connected to the upper end of the rotating cover plate 20. The lifting mechanism is fixedly connected to the support frame 1 and can control the height and rotation angle of the rotating component 2 and the self-calibration component 3. After welding, the rotating cover plate 20 is moved upward to facilitate separation from the impeller. The rotating cover plate 20 is located above the impeller disk 12. Blades 13 are welded to the surface of the impeller disk 12. The rotating component 2 can drive the impeller disk 12 to rotate, which facilitates the welding robot 10 to weld the blades 13. The lower end of the rotating cover plate 20 is rotatably connected to the self-calibration component 3 through a rotating shaft for calibrating the blades 13, which facilitates the arrangement of the blades 13 by the staff.

[0029] Please see Figure 4 - Figure 8The self-calibration component 3 includes a calibration clamping motor 30, which is connected to the lower outer surface of the rotating cover plate 20. A lower rotating body 35 is fixedly connected to the output end of the calibration clamping motor 30. A lower rotating plate 36 is fixedly connected to the annular outer surface of the lower rotating body 35. A lower clamping rod 40 is rotatably connected to the lower outer surface of the lower rotating plate 36 near both ends via a rotating shaft. An upper rotating ring 33 is rotatably connected to the lower outer surface of the calibration clamping motor 30 via a rotating ring. An upper rotating plate 34 is fixedly connected to the annular outer surface of the upper rotating ring 33. The upper clamping rod 39 is rotatably connected to the lower outer surface of the upper plate 34 near both ends. The top view of the upper plate 34 and the lower plate 36 is an “X” design. The lower outer surface (not the output end) of the calibration clamping motor 30 is fixedly connected to an “L”-shaped planetary rod 49. The other end of the planetary rod 49 is rotatably connected to a planetary gear 38 through a rotating shaft. The adjacent surfaces of the upper ring 33 and the lower body 35 are provided with tooth grooves 37 at the positions aligned with the planetary gear 38, and they are all meshed with the planetary gear 38. A reinforcing ring 50 is fixedly connected between the planetary rods 49.

[0030] Please see Figure 5 , Figure 7 , Figure 8 The lower rotating body 35 and the upper rotating ring 33 are arranged in a high-low configuration, and the upper rotating plate 34 and the lower rotating plate 36 have the same length. When the self-calibrating clamping motor 30 drives the lower rotating body 35 to rotate, the planetary gear 38 reverses the direction, forcing the upper rotating ring 33 to rotate in the opposite direction to the rotation of the lower rotating body 35. Before driving the calibration clamping motor 30, the blade 13 can be placed between the upper clamping rod 39 and the lower clamping rod 40. With the synchronous movement of the upper rotating plate 34 and the lower rotating plate 36, the blade 13 is calibrated and clamped in four directions. The lower clamping rod 40 and the upper clamping rod 39 limit the tilt of the blade 13 by their own length. The angle of the self-calibrating clamping motor 30 determines the calibration clamping direction of the blade 13. The same angle can be set in advance, and then the blade 13 can be placed in according to the steps.

[0031] Please see Figure 5 - Figure 8A bearing plate 32 is fixedly connected to the outer surface of the calibration clamping motor 30. A calibration groove 42 is formed on the lower outer surface of the bearing plate 32. A calibration slider 45 is slidably connected inside the calibration groove 42. A calibration plate 41 is fixedly connected to the lower outer surface of the calibration slider 45. A calibration spring 46 is fixedly connected between the calibration groove 42 and the calibration slider 45. When the upper rotating plate 34 and the lower rotating plate 36 rotate and drive the upper clamping rod 39 and the lower clamping rod 40 to perform four-point clamping calibration of the blade 13, in order to further improve the self-calibration accuracy of the blade 13, the bearing plate 32 and the calibration clamping motor 30 are fixedly connected. The calibration plate 41 is located on the bearing plate 32 in the direction close to the center of the rotating cover plate 20, and in the opposite direction... To facilitate user placement of the blade 13, when placing the blade 13, its end points towards the calibration plate 41 and passes through the upper clamping rod 39 and the lower clamping rod 40. The upper clamping rod 39 and the lower clamping rod 40 perform four-way calibration while ensuring perpendicularity to the impeller disk 12. At this time, the calibration plate 41 limits the sliding distance of the blade 13 during calibration, and together with the length of the upper clamping rod 39 and the lower clamping rod 40, forms a six-way clamping limit, achieving automatic calibration, automatic limit, and automatic clamping. This makes it convenient for users to place the blade 13. After placing the blade 13, manual spot welding is no longer required for positioning. The welding robot 10 can directly perform welding, which greatly improves welding efficiency and reduces manual workload, reducing errors caused by manual operation.

[0032] Please see Figure 7 , Figure 8 The end of the calibration slider 45 furthest from the calibration plate 41 is rotatably connected to a triangular plate 44, which is an isosceles acute triangle. The lower rotating plate 36 and the upper rotating plate 34 are respectively rotatably connected to the triangular plate 44 via a rotating shaft at their corresponding positions to a lower calibration block 48 and an upper calibration block 47. Both isosceles sides of the triangular plate 44 are provided with protruding strips. The upper calibration block 47 and the lower calibration block 48 are provided with grooves at their corresponding positions to the protruding strips. The two are matched to each other. When the upper rotating plate 34 and the lower rotating plate 36 rotate, the upper calibration block 47 and the lower calibration block 48 utilize the grooves to interact with the triangular plate 41. The angle plates 44 interlock, thereby changing the position of the calibration slider 45 inside the calibration groove 42, driving the calibration plate 41 to move towards the blade 13. The calibration spring 46 ensures that the convex strip and the groove are tightly fitted, so that the movement of the calibration plate 41 under the support plate 32 is controlled by the upper rotating plate 34 and the lower rotating plate 36, further increasing the linkage of the six-way clamping and positioning. The angle plate 44 adopts an acute angle equilateral design. The angle plate 44 can be replaced with different angle plates 44 as needed to change the sliding speed of the calibration plate 41, improving the versatility for different blades 13.

[0033] Please see Figure 2 , Figure 3The self-calibration component 3 further includes a wheel-side driven gear 31, the upper outer surface of which is rotatably connected to the rotating cover plate 20 via a rotating shaft. The wheel-side driven gear 31 meshes with a gear ring 22, and the lower outer surface of which is fixedly connected to the calibration clamping motor 30. The rotating component 2 also includes a gear ring 22, which is rotatably connected to the lower outer surface of the rotating cover plate 20 via a bearing. A wheel-side driving gear 23 meshes with the outer surface of the gear ring 22, and a wheel-side motor 21 is fixedly connected to the upper end of the wheel-side driving gear 23. The wheel-side motor 21 is fixedly connected to the upper outer surface of the rotating cover plate 20.

[0034] Please see Figure 3 The design of the wheel-side driven gear 31 is coordinated with the gear ring 22. When the gear ring 22 rotates, the angle of all wheel-side driven gears 31 can be adjusted synchronously, thereby ensuring the calibration accuracy of the blades 13 by several sets of calibration clamping motors 30. The wheel-side motor 21 at the top of the rotating cover plate 20 controls the rotation of the gear ring 22 by driving the wheel-side active gear 23, thereby controlling the calibration angle of the self-calibration component 3, so that it can be adjusted according to the blades 13 during the welding process.

[0035] Please see Figure 4 , Figure 5 , Figure 7 , Figure 8 The lower outer surface of the lower rotating body 35 is provided with a guide groove 53. A guide rod 51 is slidably connected inside the guide groove 53. A lower pressure plate 43 is fixedly connected to the lower outer surface of the guide rod 51. The diameter of the lower pressure plate 43 is larger than the diameter of the lower rotating body 35, which can provide sufficient downward pressure on the blade 13. A downward pressure spring 52 is fixedly connected between the lower rotating body 35 and the lower pressure plate 43. When placing the blade 13, the user can tilt it at a certain angle to lift the lower pressure plate 43, and then place the blade 13 between the upper clamping rod 39 and the lower clamping rod 40. As the upper clamping rod 39 and the lower clamping rod 40 close, the placed blade 13 will be forced to be perpendicular to the impeller disk 12. During this process, the blade 13 will be in contact with the lower pressure plate 43 under force, and will always be in contact with the impeller disk 12 under the pressure of the downward pressure spring 52, which facilitates subsequent welding.

[0036] Please see Figure 1 - Figure 8The following describes one usage process: First, the lifting platform raises the rotating cover 20 to its initial position. The impeller 12 is placed on the turntable 11 (which has a drive motor at the bottom, not specified in this document). Then, the lifting platform moves the rotating rod downwards to a predetermined position, at which point the upper rotating plate 34 and lower rotating plate 36 are in an unfolded state. The angle of the clamping motor 30 is adjusted by the wheel-side motor 21, placing the blades 13 between the upper clamping rod 39 and the lower clamping rod 40. A rotary motor (not specified in this document) is located between the rotating cover 20 and the lifting platform, causing the rotating cover 20 to rotate, placing all the blades 13 between the upper clamping rod 39 and the lower clamping rod 40. Between these steps, the lower clamping rod 40, the upper clamping rod 39, and the calibration plate 41 are controlled by the calibration clamping motor 30 to clamp and position the blade 13, thus completing the calibration of the blade 13. The blade 13 is then welded by the welding robot 10, which welds all blades 13 within its degree of freedom. After welding is completed, the rotating cover plate 20 and the turntable 11 rotate synchronously, driving the impeller disk 12 and the blade 13 to rotate synchronously to continue welding. After welding is completed, the calibration clamping motor 30 releases the lower clamping rod 40 and the upper clamping rod 39, and the impeller disk 12 is lifted off the surface by the elevator. The welded impeller disk 12 can then be removed.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic welding device for wind turbine impellers, comprising a support frame (1), wherein the support frame (1) serves as a carrier to support the welding components, and a rotatable turntable (11) is rotatably connected to the middle outer surface of the support frame (1), wherein an impeller disk (12) is placed at the upper end of the turntable (11). Its features are: Rotating component (2), the rotating component (2) includes a rotating cover plate (20), the rotating cover plate (20) is located above the impeller disk (12), the impeller disk (12) is welded with blades (13), the rotating component (2) can drive the impeller disk (12) to rotate, so that the welding robot (10) can weld the blades (13), and the lower end of the rotating cover plate (20) is rotatably connected to a self-calibration component (3) for calibrating the blades (13) through a rotating shaft; The self-calibration component (3) includes a calibration clamping motor (30), which is connected to the lower outer surface of the rotating cover plate (20). The output end of the calibration clamping motor (30) is fixedly connected to a lower rotating body (35). The annular outer surface of the lower rotating body (35) is fixedly connected to a lower rotating plate (36). The lower outer surface of the lower rotating plate (36) near both ends is rotatably connected to a lower clamping rod (40) via a rotating shaft. The lower outer surface of the calibration clamping motor (30) is rotatably connected to an upper rotating ring (33) via a rotating ring. The annular outer surface of the upper rotating ring (33) is fixedly connected to an upper rotating plate (34). The lower outer surface of the upper rotating plate (34) near both ends is rotatably connected to an upper clamping rod (39). The top view of the upper rotating plate (34) and the lower rotating plate (36) as a whole is designed in an "X" shape. The lower outer surface of the calibration clamping motor (30) is fixedly connected to an "L"-shaped planetary rod (49). The other end of the planetary rod (49) is rotatably connected to a planetary gear (38) via a rotating shaft. The adjacent surfaces of the upper rotating ring (33) and the lower rotating body (35) are provided with tooth grooves (37) aligned with the planetary gear (38), and they are all meshed with the planetary gear (38). A reinforcing ring (50) is fixedly connected between the planetary rods (49). A bearing plate (32) is fixedly connected to the outer surface of the calibration clamping motor (30). A calibration groove (42) is opened on the lower outer surface of the bearing plate (32). A calibration slider (45) is slidably connected inside the calibration groove (42). A calibration plate (41) is fixedly connected to the lower outer surface of the calibration slider (45). A calibration spring (46) is fixedly connected between the calibration groove (42) and the calibration slider (45). The end of the calibration slider (45) away from the calibration plate (41) is rotatably connected to a triangle plate (44). The triangle plate (44) is an isosceles acute triangle. The lower rotating plate (36) and the upper rotating plate (34) are rotatably connected to the triangle plate (44) via a rotating shaft to the corresponding positions of the triangle plate (44) to the lower calibration block (48) and the upper calibration block (47). The triangle plate (44) has convex strips on both isosceles sides. The upper calibration block (47) and the lower calibration block (48) have grooves at the corresponding positions of the convex strips, and the two are matched with each other. The self-calibration component (3) also includes a wheel-side driven gear (31), the upper outer surface of the wheel-side driven gear (31) is rotatably connected to the rotating cover plate (20) through a rotating shaft, the wheel-side driven gear (31) meshes with the gear ring (22), and the lower outer surface of the wheel-side driven gear (31) is fixedly connected to the calibration clamping motor (30); The rotating component (2) also includes a gear ring (22), which is rotatably connected to the lower outer surface of the rotating cover plate (20) via a bearing. The outer surface of the gear ring (22) is meshed with a wheel-side drive gear (23), and the upper end of the wheel-side drive gear (23) is fixedly connected to a wheel-side motor (21), which is fixedly connected to the upper outer surface of the rotating cover plate (20).

2. The automatic welding device for wind turbine impellers according to claim 1, characterized in that: The lower outer surface of the lower rotating body (35) is provided with a guide groove (53), and a guide rod (51) is slidably connected inside the guide groove (53). A lower pressure plate (43) is fixedly connected to the lower outer surface of the guide rod (51). The diameter of the lower pressure plate (43) is larger than the diameter of the lower rotating body (35). A lower pressure spring (52) is fixedly connected between the lower rotating body (35) and the lower pressure plate (43).

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