A fan blade welding machine

Abstract

The present invention discloses a fan blade welding machine, which relates to the technical field of semi-automatic arc welding, comprising an arc welding table, an arc welding gun installed on the arc welding table, a clamping cylinder fixedly installed on the arc welding table, and an angle adjustment component and a distance adjustment component provided in the arc welding table; after completing the adjustment of the blade rotation angle, the device keeps the blade rotation angle unchanged and realizes synchronous adjustment of the distance position between all blades and the fan hub through the distance adjustment component, thereby controlling the gap between the blade and the hub, ensuring that the weld gap is uniform, solving the problem of long preparation time before semi-automatic arc welding caused by the cumbersome process of designing special welding molds for different types of blades or relying on modular adjustment one by one, thereby improving the weld quality, ensuring the connection strength between the blade and the hub, and further improving the reliability of the semi-automatic arc welding equipment during welding.

Description

Technical Field

[0001] The present invention relates to the technical field of semi-automatic arc welding, in particular to a fan blade welding machine. Background Art

[0002] When welding wind turbine blades, a semi-automatic arc welding device is used. Arc welding technology is used to mechanically fix and connect the wind turbine blades to the hub, ensuring that the blades can firmly and safely transmit kinetic energy when the wind turbine is running. It is a key equipment in wind power equipment production.

[0003] Existing semi-automatic arc blade welding machines for wind turbines typically use different welding molds for different blade types. This approach requires the design and manufacture of dedicated welding molds for each blade type, resulting in a long mold design and development cycle, slowing down the overall production process. Furthermore, when switching blade models, the existing mold must be removed and a new one installed, requiring long downtime. This results in long setup times before welding and low welding efficiency.

[0004] Modular adjustment requires manual intervention, which can easily lead to errors when adjusting angles or distances. This precision difference can cause blade arc welding angle deviation, thereby reducing welding strength and overall machine performance.

[0005] In addition, the design of welding molds and modular adjustment methods are difficult to adapt to various blade specifications. Each adjustment unit in the modular design requires manual operation piece by piece. The operation process is relatively complicated and time-consuming, making it difficult to quickly adapt to batch welding tasks.

[0006] In order to solve the above problems, the inventor proposed a fan blade welding machine. Summary of the Invention

[0007] In order to solve the above technical problems, a fan blade welding machine is provided. This technical solution solves the problems raised in the above background technology;

[0008] To achieve the above objectives, the present invention can be implemented by adopting the following technical solutions:

[0009] The present invention provides a fan blade welding machine, comprising an arc welding table, an arc welding gun is mounted on the arc welding table, and a clamping cylinder is fixedly mounted on the arc welding table;

[0010] An angle adjustment assembly is provided in the arc welding table, and the angle adjustment assembly includes a rotating shaft rotatably connected to the top of the inner cavity of the arc welding table, the bottom of the rotating shaft is fixedly connected to a cavity column, the cavity column is fixedly connected to a gear ring, and five bevel gears are equidistantly meshed in an annular manner on the gear ring, each of the bevel gears is fixedly connected to a constraint rod on the side away from the rotating shaft, each of the constraint rods is slidably connected to a connecting rod, and each of the connecting rods is fixedly connected to a placing table at one end away from the adjacent constraint rod, five support blocks are fixedly connected to the top of the inner cavity of the arc welding table at an annular distance, a constraint column is slidably connected in the cavity column, a follower plate is fixedly connected to the outer surface of the rotating shaft, and a limiting plate is fixedly connected to the top of the inner cavity of the arc welding table.

[0011] Preferably, each of the restraint rods is composed of a cylinder 1 and two protrusions symmetrically fixed on the outer surface of the cylinder 1, and the cylinder 1 and the protrusion 1 are adapted to the connecting rod, each restraint rod is rotatably connected to a nearby support block, and each of the connecting rods is movably connected to the arc welding table.

[0012] Preferably, a rotary downward-pressing cylinder is installed on each of the placement platforms, and a downward-pressing column is installed on the piston rod of each rotary downward-pressing cylinder.

[0013] Preferably, the constraint column consists of a cylinder 2 and two protrusions symmetrically fixed on the upper part of the outer surface of the cylinder 2, and the cylinder 2 and the protrusions 2 are adapted to the cavity column. The outer surface of the constraint column is provided with an anti-slip groove 1, and the constraint column is movably connected to the arc welding table.

[0014] Preferably, the rotating shaft is interference-fitted with the top of the inner cavity of the arc welding table, and the follower plate and the limiting plate are both fan-shaped.

[0015] Preferably, a distance adjustment component is provided in the arc welding table, and the distance adjustment component includes a slide fixedly connected to the arc welding table, and the slides are arranged equidistantly in a ring, each of the slides is slidably connected to a slide seat, and the outer wall of each slide seat is symmetrically rotatably connected to two long connecting rods, and every two of the long connecting rods are rotatably connected to a connecting seat, and the connecting seats are arranged equidistantly in a ring, and the five connecting seats are fixedly connected to a slip ring, and each of the connecting seats is fixedly connected to an extension rod on the side away from the slip ring. Five limiting grooves are equidistantly provided in a ring on the inner cavity wall of the arc welding table, and the bottom of the arc welding table is fixedly connected to a bracket, and the bottom of the arc welding table is rotatably connected to a threaded rod. The side of the arc welding table close to the threaded rod is fixedly connected to a guide rod, and a movable plate is slidably connected to the guide rod, and the bottom of the bracket is rotatably connected to a knob.

[0016] Preferably, each of the slide seats is rotatably connected to an adjacent connecting rod, the slip ring is rotatably connected to the constraint column, each of the extension rods is adapted to an adjacent limiting groove, and each of the extension rods is slidably connected to an adjacent limiting groove.

[0017] Preferably, the threaded rod is interference fit with the bottom surface of the arc welding table, the threaded rod is rotatably connected to the bracket, the guide rod is fixedly connected to the bracket, and two limit rings are fixedly connected to the outer surface of the guide rod.

[0018] Preferably, the movable plate is threadedly connected to the threaded rod, the movable plate is rotatably connected to the constraint column, the knob is fixedly connected to the threaded rod, and the outer surface of the knob is provided with a second anti-slip groove.

[0019] From the above, the advantages of the present invention are:

[0020] Compared with the existing technology that uses different types of blades and needs to design welding molds in advance, or modularly adjust them one by one, the angle adjustment component in this device can synchronously adjust the welding angle position of all blades without the need to manually adjust the blades one by one. It solves the problem of designing welding molds or modular adjustment methods, which leads to many processes and time-consuming adjustments one by one, and inconsistent angles of multiple blades. In this way, by ensuring that the weld angles are consistent when multiple blades are semi-automatically arc welded at the same time, the accuracy of semi-automatic arc welding equipment is improved.

[0021] Compared with the existing technology that uses different types of blades and needs to design welding molds in advance, or adjust them one by one in a modular manner, this device, after completing the adjustment of the blade rotation angle, keeps the blade rotation angle unchanged, and uses the distance adjustment component to achieve synchronous adjustment of the distance position between all blades and the fan hub. There is no need to adjust the distance of each blade one by one, so that the gap between the blade and the hub can be controlled, ensuring that the weld gap is uniform, thereby optimizing the weld formation, solving the problem of long preparation time before semi-automatic arc welding due to the cumbersome process of designing special welding molds for different types of blades or relying on modular adjustment one by one. In this way, the weld quality can be improved, the connection strength between the blade and the hub can be ensured, and the reliability of the semi-automatic arc welding equipment during welding can be further improved.

[0022] At the same time, with the cooperation of the angle adjustment component and the distance adjustment component, the welding equipment can adapt to blades of various types and specifications without the need to design a dedicated welding mold for each blade. This solves the problem of designing and making different welding molds for different blades, which leads to increased mold making and material costs. In this way, the time waste caused by designing multiple welding molds and switching welding molds can be avoided, thereby improving the flexibility of the welding equipment and effectively achieving the purpose of fixing and positioning the blades and the circular fan hub. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a front perspective schematic diagram of the overall structure shown in the present invention;

[0024] Figure 2 It is a schematic diagram of the interior of the arc welding station shown in the present invention;

[0025] Figure 3 Schematic diagram of the interior of the arc welding station shown in the present invention;

[0026] Figure 4 It is a three-dimensional schematic diagram of the cavity column and gear ring related components shown in the present invention;

[0027] Figure 5 The present invention shows Figure 4 A partially enlarged three-dimensional schematic diagram;

[0028] Figure 6 This is a schematic diagram of the interior of the connecting rod of the present invention;

[0029] Figure 7 A three-dimensional schematic diagram of the cavity column and gear ring explosion-related components shown in the present invention

[0030] Figure 8 It is a three-dimensional schematic diagram of the sliding seat and long connecting rod related components shown in the present invention;

[0031] Figure 9 This is an exploded perspective diagram of the restraint column and slip ring shown in the present invention;

[0032] Figure 10 It is a three-dimensional schematic diagram of the extension rod and the limit groove related components shown in the present invention;

[0033] Figure 11 It is a three-dimensional schematic diagram of the bracket and guide rod related components shown in the present invention.

[0034] Wherein, the accompanying drawings in the present invention are:

[0035] 1. Arc welding table; 2. Arc welding gun; 3. Gripper cylinder;

[0036] Angle adjustment assembly: 41, rotating shaft; 42, cavity column; 43, gear ring; 44, bevel gear; 45, restraining rod; 46, connecting rod; 47, placing table; 48, support block; 49, restraining column; 410, follower plate; 411, limit plate;

[0037] Distance adjustment components: 51, slide plate; 52, slide seat; 53, long connecting rod; 54, connecting seat; 55, slip ring; 56, extension rod; 57, limit groove; 58, bracket; 59, threaded rod; 510, guide rod; 511, movable plate; 512, knob. DETAILED DESCRIPTION

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0039] The embodiments provided by the present invention will be described in detail below:

[0040] A fan blade welding machine, such as Figure 1 As shown, it includes an arc welding table 1, an arc welding gun 2 is installed on the arc welding table 1, a clamping cylinder 3 is fixedly installed on the upper surface of the arc welding table 1, the clamping cylinder 3 is used to fix the fan hub, and the arc welding gun 2 is located above the clamping cylinder 3;

[0041] like Figures 2 to 7 As shown, an angle adjustment assembly is provided in the arc welding table 1, and the angle adjustment assembly includes a rotating shaft 41 rotatably connected to the top surface of the inner cavity of the arc welding table 1, a cavity column 42 is fixedly connected to the bottom surface of the rotating shaft 41, and a gear ring 43 is fixedly connected to the side of the cavity column 42 close to the rotating shaft 41. The rotating shaft 41, the cavity column 42 and the gear ring 43 are located on the same axis. Five bevel gears 44 are equidistantly meshed in an annular manner on the gear ring 43. Each bevel gear 44 is fixedly connected to a restraining rod 45 on the side away from the rotating shaft 41. Each restraining rod 45 is horizontally slidably connected to a connecting rod 46. Each connecting rod 46 One end away from the adjacent constraint rod 45 is fixedly connected to a placement platform 47, and five placement platforms 47 are distributed in a circular and equidistant manner on the outside of the arc welding table 1. The five placement platforms 47 are all in a horizontal state. Five support blocks 48 are fixedly connected in a circular and equidistant manner on the top of the inner cavity of the arc welding table 1, and each support block 48 corresponds to each constraint rod 45, and each support block 48 is located directly above the adjacent constraint rod 45. A constraint column 49 is vertically slidably connected in the cavity column 42, and a follower plate 410 is fixedly connected to the outer surface of the rotating shaft 41. A limiting plate 411 is fixedly connected to the side of the inner cavity of the arc welding table 1 close to the rotating shaft 41.

[0042] Further, such as Figure 6As shown, each constraint rod 45 is composed of a cylinder 1 and two protrusions 1 symmetrically fixed on the outer surface of the cylinder 1, and the cylinder 1 and the protrusion 1 are adapted to the inner cavity of the connecting rod 46. The part of each constraint rod 45 away from the bevel gear 44 is located inside the adjacent connecting rod 46. Each constraint rod 45 is rotatably connected to the adjacent support block 48. The protrusion 1 on each constraint rod 45 is located on the side away from the adjacent support block 48. Each connecting rod 46 is movably connected to the side wall of the arc welding table 1, and the connecting rod 46 can rotate together with the constraint rod 45 through the cylinder 1 and the protrusion 1.

[0043] Further, such as Figure 1 and Figure 6 As shown, each placement platform 47 is equipped with a rotary downward pressure cylinder on the side away from the adjacent connecting rod 46. The rotary downward pressure cylinder is a prior art and will not be described in detail here. A downward pressure column is installed on the piston rod of each rotary downward pressure cylinder, and the downward pressure column is used to fix the blades that need to be welded.

[0044] Further, such as Figure 7 and Figure 8 As shown, the constraint column 49 is composed of a cylinder 2 and two protrusions 2 symmetrically fixed on the upper part of the outer surface of the cylinder 2, and the cylinder 2 and the protrusion 2 are adapted to the inner cavity of the cavity column 42, the protrusion 2 in the constraint column 49 is located inside the cavity column 42, and the protrusion 2 in the constraint column 49 is in a limited fit with the cavity column 42, the part of the constraint column 49 close to the gear ring 43 is located inside the cavity column 42, and an anti-slip groove 1 is provided on the lower part of the outer surface of the constraint column 49, and the anti-slip groove 1 is used to facilitate the staff to touch and identify the constraint column 49, and the anti-slip groove 1 can also prevent the staff from slipping during the rotation of the constraint column 49. The constraint column 49 is movably connected to the arc welding table 1, and the cavity column 42 can rotate with the constraint column 49 through the cylinder 2 and the protrusion 2.

[0045] Further, such as Figure 5 As shown, the rotating shaft 41 is interference fit with the top surface of the inner cavity of the arc welding table 1, the follower plate 410 and the limit plate 411 are both fan-shaped, the centers of the rotating shaft 41, the follower plate 410 and the limit plate 411 are located on the same axis, and the follower plate 410 and the limit plate 411 are in contact with each other.

[0046] Further, such as Figures 8 to 11As shown, the arc welding table 1 is provided with a distance adjustment component, which includes a slide 51 fixedly connected to the inner cavity side wall of the arc welding table 1. There are five slides 51 arranged equidistantly in a ring, and each slide 51 is located directly below the adjacent constraint rod 45. Each slide 51 is horizontally slidably connected to a slide seat 52. The outer wall of each slide seat 52 is symmetrically connected to two long connecting rods 53. Each two long connecting rods 53 are rotatably connected to a connecting seat 54 on one side away from the adjacent slide seat 52. There are five connecting seats 54 arranged equidistantly in a ring, and the five connecting seats 54 are fixedly connected to a slip ring 55. The slip ring 55 is located at the constraint column 4 9 In the middle of the outer surface, each connecting seat 54 is fixedly connected to an extension rod 56 on the side away from the slip ring 55, and five limiting grooves 57 are equidistantly provided in a ring on the inner cavity side wall of the arc welding table 1, and each limiting groove 57 corresponds to each extension rod 56. The bottom surface of the arc welding table 1 is fixedly connected to a bracket 58, and the side of the arc welding table 1 close to the bracket 58 is rotatably connected to a threaded rod 59. The side of the arc welding table 1 close to the threaded rod 59 is fixedly connected to a guide rod 510, and the threaded rod 59 and the guide rod 510 are arranged side by side. The outer surface of the guide rod 510 is slidably connected to a movable plate 511, and the bottom surface of the bracket 58 is rotatably connected to a knob 512.

[0047] Further, such as Figure 8 and Figure 10 As shown, each slide 52 is rotatably connected to the adjacent connecting rod 46 , the slip ring 55 is rotatably connected to the constraint column 49 , and the portion of each extension rod 56 away from the slip ring 55 is vertically slidably connected to the adjacent limiting groove 57 .

[0048] Further, such as Figure 10 As shown, the threaded rod 59 is interference fit with the bottom surface of the arc welding table 1, the end of the threaded rod 59 away from the arc welding table 1 is rotatably connected to the bracket 58, the end of the guide rod 510 away from the arc welding table 1 is fixedly connected to the bracket 58, and two limit rings are fixedly connected to the outer surface of the guide rod 510. The limit rings are used to limit the moving distance of the movable plate 511. The two limit rings are respectively located in the middle and lower parts of the outer surface of the guide rod 510, and the movable plate 511 is in fit with the middle limit ring.

[0049] Further, such as Figure 10 As shown, the movable plate 511 is threadedly connected to the threaded rod 59, the movable plate 511 is rotatably connected to the lower axis of the constraint column 49, the knob 512 is fixedly connected to the threaded rod 59, and the outer surface of the knob 512 is provided with an anti-slip groove 2, which is used to facilitate the staff to touch and identify the knob 512, and the anti-slip groove 2 can also prevent the staff from slipping during the process of turning the knob 512.

[0050] While working:

[0051] The device can synchronously adjust the rotation angles of all blades that need to be welded before welding. The detailed steps are as follows:

[0052] When welding of fan blades is required, the staff places the fan hub on the upper surface of the clamping cylinder 3, and starts the clamping cylinder 3 through the controller, so that the clamping claws in the clamping cylinder 3 fix the fan hub. When the fan hub is fixed, the five blades to be welded are placed on the upper surface of the five placement tables 47, and the controller is used to start the rotary downward pressure cylinder on each placement table 47, so that the downward pressure column on the piston rod of the rotary downward pressure cylinder fixes the blades. In this way, the fixation of the fan hub and the blades to be welded is completed.

[0053] After completing the fixation of the fan hub and the blades that need to be welded, the staff grabs the restraint column 49 and touches the anti-slip groove 1 on the restraint column 49, and then rotates the restraint column 49 counterclockwise. Since the protrusion 2 on the outer surface of the restraint column 49 is located inside the cavity column 42, the restraint column 49 drives the cavity column 42 to rotate counterclockwise with the restraint column 49, and further makes the gear ring 43 and the rotating shaft 41 rotate together with the cavity column 42. During the counterclockwise rotation of the gear ring 43, since the five bevel gears 44 are all engaged with the gear ring 43, the five bevel gears 44 rotate forward synchronously, and further make the restraint rod 45 rotate forward together with the bevel gear 44. Since the protrusion 1 on the outer surface of the restraint rod 45 is located inside the cavity column 42, the restraint rod 49 drives the cavity column 42 to rotate counterclockwise with the restraint column 49, and further makes the gear ring 43 and the rotating shaft 41 rotate together with the cavity column 42. During the counterclockwise rotation of the gear ring 43, since the five bevel gears 44 are all engaged with the gear ring 43, the five bevel gears 44 rotate forward synchronously, and further make the restraint rod 45 rotate forward together with the bevel gear 44. The connecting rod 46 is inside, so the connecting rod 46, the placement table 47 and the blades on the placement table 47 rotate together with the constraint rod 45. When the rotation angle of the blade to be welded has been adjusted as needed, the staff releases and stops rotating the constraint column 49. Since the rotating shaft 41 has an interference fit with the top surface of the inner cavity of the arc welding table 1, after the staff lets go, the constraint column 49, the cavity column 42 and the rotating shaft 41 remain stationary, further making the bevel gear 44, the constraint rod 45, the placement table 47 and the blades on the placement table 47 remain stationary. In this way, the staff can synchronously adjust the rotation angles of the five blades that need to be welded by rotating the constraint column 49 counterclockwise.

[0054] In the above process, compared with the prior art that uses different types of blades and needs to design welding molds in advance, or modularly adjust them one by one, the angle adjustment component in this device can synchronously adjust the welding angle positions of all blades without the need to manually adjust the blades one by one. This solves the problem of designing welding molds or modular adjustment methods, which leads to many processes and time-consuming adjustments one by one, and inconsistent angles of multiple blades. In this way, the accuracy of semi-automatic arc welding equipment is improved by ensuring that the weld angles are consistent when multiple blades are semi-automatically arc welded at the same time.

[0055] When the restraining post 49 rotates counterclockwise, the slip ring 55 is movably connected to the restraining post 49, and the portions of the five extension rods 56 away from the slip ring 55 are all located within the adjacent limiting grooves 57. Therefore, the limiting grooves 57 restrict the rotation of the slip ring 55, further allowing the slip ring 55 to remain stationary while the restraining post 49 rotates.

[0056] When the restraining post 49 rotates counterclockwise, the follower plate 410 on the rotating shaft 41 rotates counterclockwise along with the restraining post 49 and moves away from the limiting plate 411 .

[0057] The device can synchronously adjust the distance between all blades to be welded and the fan hub before welding. The detailed steps are as follows:

[0058] After the desired welding blade rotation angle is adjusted, the worker grasps the knob 512 and touches the second anti-slip groove on the knob 512, and then rotates the knob 512 counterclockwise. During the counterclockwise rotation of the knob 512, the movable plate 511 moves vertically downward along the outer surface of the guide rod 510, so that the movable plate 511 leaves the limiting ring in the middle of the outer surface of the guide rod 510;

[0059] During the vertical downward movement of the movable plate 511, the movable plate 511 drives the constraint column 49 to move vertically downward along the inner wall of the cavity column 42, and the constraint column 49 does not rotate when moving vertically downward, further causing the slip ring 55 to move vertically downward along with the constraint column 49, and the slip ring 55 does not rotate when moving vertically downward.

[0060] During the vertical downward movement of the slip ring 55, the five connecting seats 54 on the slip ring 55 pull the adjacent slides 52 through the long connecting rod 53, so that the five slides 52 move horizontally along the adjacent slide plate 51 toward the side close to the rotating shaft 41, and further make the five slides 52 drive the adjacent connecting rods 46, the placement platform 47 and the blades on the placement platform 47 to move horizontally. When the staff adjusts the distance between the blades on the placement platform 47 and the fan hub as needed, the staff releases the knob 512. Since the threaded rod 59 has an interference fit with the bottom surface of the arc welding platform 1, after the staff releases their hand, the threaded rod 59, the moving plate 511 and the restraining column 49 remain stationary, further making the slide 52, the connecting rod 46, the placement platform 47 and the blades on the placement platform 47 remain stationary. In this way, the staff can synchronously adjust the distance between all blades that need to be welded and the fan hub by turning the knob 512 counterclockwise or clockwise.

[0061] In the above process, compared with the prior art method of using different types of blades that requires pre-designed welding molds or modular adjustments one by one, in this device, after completing the adjustment of the blade rotation angle, the blade rotation angle is kept unchanged, and the distance adjustment component is used to achieve synchronous adjustment of the distance position between all blades and the fan hub. There is no need to adjust the distance of each blade one by one, so that the gap between the blade and the hub can be controlled, ensuring that the weld gap is uniform, thereby optimizing the weld formation, solving the problem of long preparation time before semi-automatic arc welding due to the cumbersome process of designing special welding molds for different types of blades or relying on modular adjustments one by one. In this way, the weld quality can be improved, the connection strength between the blade and the hub can be ensured, and the reliability of the semi-automatic arc welding equipment during welding can be further improved.

[0062] When the rotation angle of the blade to be welded and the distance from the hub are adjusted, the staff starts the arc welding gun 2 through the controller, and welds by manually holding the arc welding gun 2 or removing the arc welding gun 2 and installing it on a robotic arm for automatic welding.

[0063] When the welding work between the blades and the fan hub is completed, the staff starts the clamping cylinder 3 and the rotary downward pressure cylinder on the placement table 47 through the controller, so that the clamping claws on the clamping cylinder 3 and the downward pressure columns in the five rotary downward pressure cylinders are separated from the welded fan. Then the staff removes the welded fan, puts the fan hub and blades of the same model, and then starts the clamping claw cylinder 3 and the rotary downward pressure cylinder through the controller to complete the fixation of the fan hub and blades. Then, the arc welding gun 2 is started through the controller, and this step is repeated to complete the welding work between this model batch of blades and the fan hub.

[0064] After completing all the welding work, repeat the above steps in reverse, that is, rotate the constraint column 49 and the knob 512 clockwise. In the process of rotating the constraint column 49 clockwise, the gear ring 43 and the rotating shaft 41 rotate clockwise together with the constraint column 49, and the follower plate 410 on the outer surface of the rotating shaft 41 rotates together with the rotating shaft 41. When the follower plate 410 rotates back to the initial position and fits with the limit plate 411, stop rotating the gear ring 43. During this process, the gear ring 43 causes the five bevel gears 44 to drive the constraint rod 45, the connecting rod 46 and the placement platform 47 to rotate back to the initial position. At this time, the five placement platforms 47 are in a horizontal state.

[0065] During the clockwise rotation of the knob 512, the movable plate 511 moves vertically upward along the guide rod 510, further causing the movable plate 511 to drive the constraint column 49 and the slip ring 55 to move vertically upward, and the constraint column 49 and the slip ring 55 do not rotate during the vertical upward movement. During the vertical upward movement of the slip ring 55, the five connecting seats 54 push the slide 52 through the long connecting rod 53, so that the slide 52 drives the connecting rod 46 and the placement table 47 to move horizontally along the slide plate 51 until the movable plate 511 is re-fitted with the limit ring in the middle of the outer surface of the guide rod 510, then stop rotating the knob 512, and at this time the five limit slots 57 have returned to their initial positions.

[0066] If you need to weld fans of different models, repeat the above steps and adjust the blade rotation angle and the distance between the blade and the fan hub as needed.

[0067] In the above process, with the cooperation of the angle adjustment component and the distance adjustment component, the welding equipment can adapt to blades of various types and specifications without the need to design a dedicated welding mold for each blade. This solves the problem of designing and making different welding molds for different blades, which leads to increased mold making and material costs. In this way, the time waste caused by designing multiple welding molds and switching welding molds can be avoided, thereby improving the flexibility of the welding equipment and effectively achieving the purpose of fixing and positioning the blades and the circular fan hub.

[0068] The above descriptions are merely embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A fan blade welding machine, comprising an arc welding station (1), characterized in that: An arc welding gun (2) is mounted on the arc welding table (1), and a clamping cylinder (3) is fixedly mounted on the arc welding table (1); An angle adjustment assembly is provided in the arc welding table (1), and the angle adjustment assembly includes a rotating shaft (41) rotatably connected to the top of the inner cavity of the arc welding table (1), a cavity column (42) is fixedly connected to the bottom of the rotating shaft (41), a gear ring (43) is fixedly connected to the cavity column (42), and five bevel gears (44) are equidistantly meshed in an annular manner on the gear ring (43), and each bevel gear (44) is fixedly connected to a restraining rod (45) on the side away from the rotating shaft (41). The restraining rods (45) are all slidably connected to connecting rods (46), and one end of each connecting rod (46) away from the adjacent restraining rod (45) is fixedly connected to a placement table (47). Five support blocks (48) are fixedly connected to the top of the inner cavity of the arc welding table (1) in an annular manner and at equal intervals. A restraining column (49) is slidably connected to the inner cavity column (42). A follower plate (410) is fixedly connected to the outer surface of the rotating shaft (41). A limiting plate (411) is fixedly connected to the top of the inner cavity of the arc welding table (1). Each of the restraining rods (45) is composed of a cylinder and two protrusions symmetrically fixed on the outer surface of the cylinder, and the cylinder and the protrusions are adapted to the connecting rod (46). Each restraining rod (45) is rotatably connected to a nearby support block (48), and each of the connecting rods (46) is movably connected to the arc welding table (1). The arc welding table (1) is provided with a distance adjustment component, and the distance adjustment component includes a slide plate (51) fixedly connected to the arc welding table (1), and the slide plates (51) are arranged in an annular pattern at equal intervals. Each of the slide plates (51) is slidably connected to a slide seat (52), and the outer wall of each slide seat (52) is symmetrically connected to two long connecting rods (53), and every two of the long connecting rods (53) are rotatably connected to a connecting seat (54), and the connecting seats (54) are arranged in an annular pattern at equal intervals. The five connecting seats (54) are fixedly connected to a slip ring (55), and each The side of the connecting seat (54) away from the slip ring (55) is fixedly connected to an extension rod (56), the inner wall of the arc welding table (1) is provided with five limiting grooves (57) at equal intervals, the bottom of the arc welding table (1) is fixedly connected to a bracket (58), the bottom of the arc welding table (1) is rotatably connected to a threaded rod (59), the side of the arc welding table (1) close to the threaded rod (59) is fixedly connected to a guide rod (510), a movable plate (511) is slidably connected to the guide rod (510), and the bottom of the bracket (58) is rotatably connected to a knob (512); Each of the slide seats (52) is rotatably connected to a corresponding connecting rod (46), the slip ring (55) is rotatably connected to the constraint column (49), each of the extension rods (56) is adapted to a corresponding limiting groove (57), and each of the extension rods (56) is slidably connected to a corresponding limiting groove (57); The movable plate (511) is threadedly connected to the threaded rod (59), the movable plate (511) is rotatably connected to the constraint column (49), the knob (512) is fixedly connected to the threaded rod (59), and the outer surface of the knob (512) is provided with a second anti-slip groove.

2. A fan blade welding machine according to claim 1, characterized in that: A rotary downward-pressing cylinder is installed on each of the placement platforms (47), and a downward-pressing column is installed on the piston rod of each rotary downward-pressing cylinder.

3. A fan blade welding machine according to claim 1, characterized in that: The constraint column (49) is composed of a second cylinder and two second protrusions symmetrically fixed on the upper portion of the outer surface of the second cylinder, and the second cylinder and the second protrusion are adapted to the cavity column (42). An anti-slip groove is provided on the outer surface of the constraint column (49), and the constraint column (49) is movably connected to the arc welding table (1).

4. A fan blade welding machine according to claim 1, characterized in that: The rotating shaft (41) is in interference fit with the top of the inner cavity of the arc welding table (1), and the follower plate (410) and the limiting plate (411) are both fan-shaped.

5. The fan blade welding machine according to claim 1, characterized in that: The threaded rod (59) is interference-fitted with the bottom surface of the arc welding table (1); the threaded rod (59) is rotatably connected to the bracket (58); the guide rod (510) is fixedly connected to the bracket (58); and two limiting rings are fixedly connected to the outer surface of the guide rod (510).

Images