Heavy duty fan assembly

Abstract

The application relates to a heavy fan assembling device and belongs to the technical field of heavy fan assembling, which comprises a conveying mechanism and a processing mechanism. The conveying mechanism comprises a first displacement driving assembly and a heavy-load hanging lifting device. The first displacement driving assembly drives the heavy-load hanging lifting device to move bidirectionally and independently on a horizontal plane, realizes cross-area carrying of fan workpieces between feeding, processing and discharging stations, and the hanging lifting device directly acts on a standard lifting point of the fan workpiece, is high in rigidity and suitable for long-distance heavy-load carrying. The processing mechanism comprises a second displacement driving assembly, two clamping pieces and at least two processing devices. The second displacement driving assembly drives the clamping pieces and the processing devices to independently ascend and descend. The two clamping pieces symmetrically clamp the fan workpiece and drive the fan workpiece to rotate in suspension, reduces eccentric vibration, guarantees rotation precision, the processing devices process circumferential assembly points in rotation, the clamping and processing do not interfere with each other, and assembly quality is improved.

Description

Technical Field

[0001] This application relates to the field of heavy-duty wind turbine assembly technology, and in particular to a heavy-duty wind turbine assembly device. Background Technology

[0002] With the rapid development of cloud computing, big data and artificial intelligence technologies, the construction scale of global data centers continues to expand and the power density of servers continues to increase. In order to meet the heat dissipation requirements of high-density computing environments, large cooling fans have been increasingly widely used due to their advantages such as large air volume, high static pressure and good reliability. These large server cooling fans usually have large size and weight.

[0003] Among related technologies, the automated assembly technology of wind turbines is relatively mature. The industry generally adopts two technical routes: one is the multi-joint robotic arm transfer scheme, which uses the flexibility of the robotic arm to transport each component to a fixed workstation for assembly; the other is the turntable or conveyor belt assembly line scheme, which transports wind turbine workpieces to each workstation through continuous or intermittent motion.

[0004] However, existing technologies are all based on light-load wind turbines. When the wind turbine load increases significantly, the rigidity and strength of the structure must be increased in order to ensure the load-bearing capacity. This will inevitably lead to an increase in motion inertia and a decrease in positioning accuracy. If the structural weight is limited in order to ensure positioning accuracy and motion speed, it will be difficult to meet the load-bearing requirements of heavy-duty wind turbines.

[0005] If a robotic arm transfer solution is adopted, a high-load robotic arm must be selected to move heavy-duty fans. The repeatability of positioning is reduced under heavy load, making it difficult to meet the requirements of precision assembly. If a turntable assembly line solution is adopted, the long-term off-center load of the heavy-duty fans will cause the turntable spindle to bend and deform, the rotation indexing error will exceed the allowable range, and the processing quality will decrease. Summary of the Invention

[0006] To address the aforementioned problems, this application provides a heavy-duty wind turbine assembly device.

[0007] This application provides a heavy-duty wind turbine assembly equipment with the following technical solution: It includes a frame, a conveying mechanism, and a processing mechanism. Both the conveying mechanism and the processing mechanism are mounted on the frame. The conveying mechanism includes a first displacement drive component and a heavy-duty lifting device. The first displacement drive component extends to the outside of the frame and is configured to drive the heavy-duty lifting device to move independently in two mutually perpendicular directions on a horizontal plane. This enables cross-regional transport of wind turbine workpieces between the loading station of the conveying mechanism, the processing station of the processing mechanism, and the unloading station of the conveying mechanism. The heavy-duty lifting device is configured to grip, lift, and release the wind turbine workpieces. The processing mechanism includes a second displacement drive assembly, two clamping members, and at least two processing devices. The second displacement drive assembly is configured to drive the two clamping members and at least two processing devices to move independently up and down in the vertical direction, and to move the two clamping members to a symmetrical clamping position and the at least two processing devices to a processing position. The two clamping members are configured to clamp the fan workpiece synchronously from a symmetrical direction and jointly drive the clamped fan workpiece to rotate at a constant speed around its own axis. The at least two processing devices are configured to perform processing operations on the assembly points distributed on the fan workpiece during the rotation of the fan workpiece.

[0008] By adopting the above technical solution, the first displacement drive component drives the heavy-duty hanging lifting device to move independently in two mutually perpendicular directions on the horizontal plane, realizing cross-area transportation of the fan workpiece between the loading station, processing station and unloading station. The heavy-duty hanging lifting device carries the fan workpiece in a hanging manner. The heavy-duty hanging lifting device can directly act on the standard lifting points of the fan workpiece. The heavy-duty hanging lifting device has the functions of linear lifting and translation. The heavy-duty hanging lifting device has strong structural rigidity and is less affected by load changes, enabling cross-area transportation over longer distances.

[0009] The system employs two clamping members that synchronously clamp the fan workpiece from a symmetrical direction and jointly drive its rotation. The second displacement drive assembly first moves the two clamping members vertically to a preset clamping height, then moves them to a symmetrical clamping position. The two clamping members simultaneously clamp the fan workpiece. After clamping, the second displacement drive assembly moves the two clamping members until the fan workpiece is suspended in the air. The two clamping members apply equal and opposite clamping forces to the fan workpiece from a symmetrical direction, aligning the force center of the fan workpiece with its geometric center. The two clamping members synchronously drive the fan workpiece to rotate, with the driving torque acting directly on the near end of the fan workpiece. This short force flow path eliminates the cantilever bending moment deformation problem of traditional turntable spindles under heavy loads. With the fan workpiece suspended in the air, both its support and rotational power are provided by the clamping members, effectively reducing eccentric vibration and ensuring accurate rotational indexing.

[0010] Furthermore, during the processing, the second displacement drive component drives at least two processing devices to move independently vertically, moving them to the processing position of the corresponding suspended fan workpiece, and performing processing operations on the assembly points distributed on the fan workpiece. The clamping action and the processing action do not interfere with each other. The two clamping components together drive the clamped fan workpiece to rotate at a constant speed around its own axis, so that the operation assembly points at different positions distributed on the circumference of the fan workpiece are exposed in sequence in the processing area of ​​the processing device, thereby improving the assembly and processing quality of the fan workpiece.

[0011] Preferably, the first displacement drive assembly includes a first sliding rail, a first sliding frame, a second sliding rail, and a second sliding frame. The first sliding rail is disposed on both sides of the processing mechanism and extends to the outside of the frame. One end of the first sliding rail is disposed above the processing mechanism. Both ends of the first sliding frame are slidably connected to the first sliding rail. The second sliding rail is disposed on the first sliding frame and slidably connected to the second sliding rail. The heavy-duty hoisting lifting device is fixedly disposed on the second sliding frame.

[0012] By adopting the above technical solution, the two ends of the first sliding frame are simultaneously slidably connected to the first sliding rail. The weight of the fan workpiece carried by the heavy-duty hanging lifting device is evenly transferred to the first sliding rails on both sides through the first sliding frame, reducing the load on the unit support point and improving the load-bearing capacity of the overall structure. The movement of the first sliding frame along the first sliding rail and the movement of the second sliding frame along the second sliding rail together realize the independent movement of the heavy-duty hanging lifting device in two mutually perpendicular directions on the horizontal plane.

[0013] Preferably, an elastic buffer is provided at one end of the first sliding rail near the processing mechanism. When the first sliding frame moves to the processing station of the processing mechanism, it abuts against and compresses the elastic buffer.

[0014] By adopting the above technical solution, when the first sliding frame moves to the processing station of the processing mechanism, it abuts against and compresses the elastic buffer. During the process of the heavy-weight fan workpiece, which is carried by the second sliding rail and the heavy-duty lifting device, the first sliding frame contacts and compresses the elastic buffer as it moves to the processing station of the processing mechanism. The elastic buffer continuously absorbs the inertial kinetic energy accumulated by the heavy-weight fan workpiece moving with the first sliding frame, smooths the stopping speed of the first sliding frame, and improves the positioning accuracy of the first sliding frame after it stops.

[0015] Preferably, the second displacement drive assembly includes a vertical sliding drive, a first lateral sliding drive, and a second lateral sliding drive. The vertical sliding drive is fixedly disposed inside the frame. The first lateral sliding drive and the second lateral sliding drive are slidably connected to the vertical sliding drive. Two clamping members are slidably disposed on the first lateral sliding drive. At least two processing devices are disposed on the second lateral sliding drive. The second lateral sliding drive is disposed parallel to and above the first lateral sliding drive.

[0016] By adopting the above technical solution, the vertical sliding drive drives the first horizontal sliding drive and the two clamping members to move to the clamping height. The first horizontal sliding drive drives the two clamping members to slide symmetrically to clamp the fan workpiece synchronously. Then, the vertical sliding drive drives the first horizontal sliding drive along with the clamped fan workpiece to move upward, so that the fan workpiece is in a suspended state. The vertical sliding drive drives the second horizontal sliding drive and at least two processing devices to move to the corresponding processing height. The second horizontal sliding drive drives at least two processing devices to move laterally to the assembly points distributed circumferentially on the fan workpiece according to the position of the suspended fan workpiece for processing operations.

[0017] Preferably, each of the clamping members includes a clamping arm and a clamping fixture. The clamping arm is slidably connected to the first lateral sliding drive member, and the clamping fixture is rotatably connected to the end of the clamping arm away from the first lateral sliding drive member. At least one of the clamping arms is provided with a rotation drive member for driving the clamping fixture to rotate, and the rotation drive member is fixedly disposed on the clamping arm.

[0018] By adopting the above technical solution, the clamping arm is slidably connected to the first transverse sliding drive to perform horizontal clamping action. The rotation drive is fixedly set on the clamping arm and directly drives the clamping fixture to rotate relative to the clamping arm. This makes the clamping force transmission path and the rotation drive path converge and output uniformly to the clamping fixture inside the clamping arm. This layout directly applies the driving torque of the rotation drive to the rotation axis of the clamping fixture. The clamping fixture is rotatably connected to the end of the clamping arm away from the first transverse sliding drive. The rotating joint is concentrated at the end of the clamping arm. The clamping arm body, as a fixed support structure, bears the bending moment generated by the clamping force and the weight of the fan workpiece. The rotation drive bears the torque that drives the clamping fixture and the fan workpiece to rotate. The clamping load and the rotation drive load achieve functional division within the clamping arm, ensuring the stability and positioning accuracy of the rotation indexing of the heavy fan workpiece in the suspended state. In the suspended state, the rotation drive drives the clamping fixture to rotate the fan workpiece around its own axis, so that the operation assembly points at different positions distributed on the circumference of the fan workpiece are exposed in sequence in the processing area of ​​the processing device.

[0019] Preferably, each of the processing devices includes a balancing arm and a processing component, one end of the balancing arm being slidably connected to the second lateral sliding drive, and the processing component being disposed at the end of the balancing arm away from the second lateral sliding drive.

[0020] By adopting the above technical solution, one end of the balancing arm is slidably connected to the second lateral sliding drive, and the workpiece is set at the end of the balancing arm away from the second lateral sliding drive. This allows the second lateral sliding drive to drive the balancing arm and the workpiece to move laterally, thereby achieving processing coverage of different positions of the fan workpiece. The balancing arm provides rigid support for the workpiece, maintaining the stability of the workpiece's posture during movement and processing, which helps to balance the processing force and improve processing consistency and positioning accuracy.

[0021] Preferably, the processing mechanism further includes a carrier plate and a balancing fixture. The carrier plate is used to place the fan workpiece, and the balancing fixture is disposed inside the frame and located above the carrier plate. The balancing fixture has a clearance opening that matches the shape of the fan workpiece. When the fan workpiece is placed on the carrier plate, the fan workpiece is located within the clearance opening, and the middle part of the fan workpiece abuts against the side surface of the balancing fixture away from the carrier plate.

[0022] By adopting the above technical solution, the carrier plate is used to place the fan workpiece, and the balancing fixture is set inside the frame. The balancing fixture is located above the carrier plate and has a clearance opening that matches the shape of the fan workpiece. When the fan workpiece is placed on the carrier plate, the fan workpiece is located in the clearance opening, and the middle part of the fan workpiece abuts against the side surface of the balancing fixture away from the carrier plate. The carrier plate bears the overall weight of the fan workpiece. The balancing fixture limits the position of the outer periphery of the fan workpiece through the clearance opening. At the same time, it disperses the placement force of the heavy-duty fan workpiece by abutting against the middle part of the fan workpiece, maintains the force balance state after the fan workpiece is placed, and limits the processing and placement posture of the fan workpiece.

[0023] Preferably, the processing mechanism further includes a base plate, the carrier plate is fixedly disposed in the middle of the base plate, the carrier plate and the base plate can slide together in the vertical direction inside the frame, the balancing fixture is provided with at least two height limiting columns, one end of the at least two height limiting columns is fixedly connected to the balancing fixture, and the other end of the at least two height limiting columns is inserted into the base plate, the clamping fixture includes a clamping contour structure and a limiting structure, the clamping contour structure is used to clamp the fan workpiece, and the limiting structure is adapted to the shape of the balancing fixture and the height limiting columns, so that when the clamping contour structure clamps the fan workpiece, the balancing fixture and the height limiting columns are exactly located within the limiting structure.

[0024] By adopting the above technical solution, the carrier plate is fixedly set in the middle of the base plate. The carrier plate and the base plate can slide together in the vertical direction inside the frame. One end of the height limiting column is fixedly connected to the balancing fixture, and the other end of the height limiting column is inserted into the base plate, so that the carrier plate and the base plate can support the fan workpiece and the balancing fixture to move upward, realizing the connection with the clamping fixture. The other ends of at least two height limiting columns are inserted into the base plate to ensure the relative position of the balancing fixture and the fan workpiece, thereby maintaining the balance of the fan workpiece. When the clamping contour structure clamps the fan workpiece, the limiting structure... The shape of the balancing jig and the height limiting column is adapted to fit the shape of the balancing jig and the height limiting column so that the balancing jig and the height limiting column are located within the limiting structure. Thus, the clamping jig can drive the fan workpiece, the balancing jig and the height limiting column to move synchronously. The effect of driving the balancing jig and the height limiting column to move together is to keep the balancing jig in a state of force balance on the fan workpiece during the transfer process. Confining the balancing jig and the height limiting column within the limiting structure is to suppress the offset of the balancing jig and the height limiting column during the movement and maintain the force balance of the fan workpiece throughout the transfer process.

[0025] Preferably, the processing mechanism further includes a drive cylinder, the drive cylinder is provided with a cylinder mounting plate, the cylinder mounting plate is fixedly disposed inside the frame, the cylinder body of the drive cylinder is fixedly disposed on the cylinder mounting plate, the cylinder mounting plate is disposed below the carrier plate, the piston rod of the drive cylinder extends upward and is fixedly connected to the carrier plate, and both the base plate and the carrier plate are provided with displacement sensors.

[0026] By adopting the above technical solution, the cylinder body of the drive cylinder is fixed to the cylinder mounting plate, which is located below the base plate. The piston rod of the drive cylinder extends upward and is fixedly connected to the carrier plate. The piston rod of the drive cylinder drives the carrier plate, which in turn drives the base plate fixed on the carrier plate to move upward together. At the same time, it drives the balancing fixture that is connected to the base plate through the height limiting column and the fan workpiece located on the carrier plate to move synchronously. Displacement sensors are installed on both the base plate and the carrier plate. When the piston rod of the drive cylinder extends and retracts, it drives the carrier plate to rise and fall. The displacement sensors detect the position of the carrier plate in real time, thereby controlling the lifting stroke of the carrier plate to ensure that the fan workpiece reaches the connection position with the balancing fixture when it rises to the preset height.

[0027] Preferably, the loading side of the frame is provided with a first operating opening, and the unloading side of the frame is provided with a second operating opening. The second operating opening is used to connect the unloading process. Both the first operating opening and the second operating opening are provided with safety light curtains, and the safety light curtains cover the first operating opening and the second operating opening.

[0028] By adopting the above technical solution, a first operating opening is provided on the loading side of the frame to facilitate the operator to put the fan workpiece in, and a second operating opening is provided on the unloading side to connect the unloading process, so that the fan workpiece can be smoothly transferred to the next station after processing. The establishment of the first and second operating openings ensures the separation of the loading and unloading paths and improves the orderliness of the operation. Both the first and second operating openings are covered with safety light curtains. The safety light curtains are sensed in time when the operator approaches the loading or unloading side to protect the operating area.

[0029] In summary, this application includes at least one of the following beneficial technical effects: 1. The first displacement drive component drives the heavy-duty hanging lifting device to move independently in two mutually perpendicular directions on the horizontal plane, realizing cross-area transportation of the fan workpiece between the loading station, processing station and unloading station. The heavy-duty hanging lifting device carries the fan workpiece in a hanging manner. The heavy-duty hanging lifting device can directly act on the standard lifting points of the fan workpiece. The heavy-duty hanging lifting device has the functions of linear lifting and translation. The heavy-duty hanging lifting device has strong structural rigidity and is less affected by load changes, enabling cross-area transportation over longer distances. 2. Two clamping components apply equal and opposite clamping forces to the fan workpiece from symmetrical directions, making the force center of the fan workpiece coincide with its own geometric center. The two clamping components synchronously drive the fan workpiece to rotate, and the driving torque acts directly on the near end of the fan workpiece. The force flow path is short, eliminating the cantilever bending moment deformation problem of the traditional turntable spindle under heavy load. The fan workpiece is in a suspended state, and the support and rotation power of the fan workpiece are provided by the clamping components, effectively reducing the problem of eccentric vibration and ensuring the rotation indexing accuracy. 3. During the processing, the second displacement drive component drives at least two processing devices to move independently up and down in the vertical direction, moving them to the processing position of the corresponding suspended fan workpiece, and performing processing operations on the assembly points distributed on the fan workpiece. The clamping action and the processing action do not interfere with each other. The two clamping components jointly drive the clamped fan workpiece to rotate at a constant speed around its own axis, so that the operation assembly points at different positions distributed on the circumference of the fan workpiece are exposed in sequence in the processing area of ​​the processing device, thereby improving the assembly and processing quality of the fan workpiece. Attached Figure Description

[0030] Figure 1 This is a structural schematic diagram of an embodiment of this application.

[0031] Figure 2 This is a schematic diagram of the conveying mechanism, support frame, and processing mechanism in the embodiments of this application.

[0032] Figure 3 This is a schematic diagram of the conveying mechanism in the embodiments of this application.

[0033] Figure 4 This is a schematic diagram of the processing mechanism in the embodiments of this application.

[0034] Figure 5 This is a schematic diagram of the processing device in the embodiments of this application.

[0035] Figure 6 This is a schematic diagram of the clamping component in the embodiments of this application.

[0036] Figure 7 This is a schematic diagram of the structure of the balancing fixture, carrier plate, base plate, fan workpiece, and displacement sensor in the embodiments of this application.

[0037] Figure 8 This is a schematic diagram of the structure of the balancing fixture, carrier plate, base plate and displacement sensor in the embodiments of this application.

[0038] Figure 9 This is a schematic diagram of the structure of the vertical sliding drive, the first lateral sliding drive, and the clamping member in the embodiments of this application.

[0039] Figure 10 This is a schematic diagram of the structure of the clamping fixture, the balancing fixture, and the limiting post in the embodiments of this application.

[0040] Figure 11 This is a schematic diagram of the symmetrical state of two clamping fixtures in an embodiment of this application.

[0041] Figure 12 This is a schematic diagram of the structure of the balancing fixture, the base plate, and the drive cylinder in the embodiments of this application.

[0042] Figure 13 This is a schematic diagram of the frame and processing mechanism in the embodiments of this application.

[0043] Explanation of reference numerals in the attached drawings: 1. Frame; 11. First operating opening; 12. Second operating opening; 13. Grating baffle; 14. Safety light curtain; 2. Conveying mechanism; 21. First displacement drive assembly; 211. First sliding rail; 212. First sliding frame; 213. Second sliding rail; 214. Second sliding frame; 22. Heavy-duty hoisting and lifting device; 23. Elastic buffer; 3. Support frame; 4. Processing mechanism; 41. Second displacement drive assembly; 411. Vertical sliding drive component; 412. First transverse sliding drive component; 413. ... 42. Lateral sliding drive component; 42. Clamping component; 421. Clamping arm; 422. Clamping fixture; 4221. Clamping contour structure; 4222. Limiting structure; 4222a. First limiting groove; 4222b. Second limiting groove; 423. Rotation drive component; 43. Processing device; 431. Balancing arm; 432. Processed part; 44. Carrier plate; 45. Balancing fixture; 451. Clearance opening; 452. Height limiting post; 46. Base plate; 461. Insertion hole; 47. Drive cylinder; 471. Cylinder mounting plate; 48. Displacement sensor. Detailed Implementation

[0044] The following is in conjunction with the appendix Figure 1-13 This application will be described in further detail.

[0045] This application discloses a heavy-duty wind turbine assembly device, referring to... Figure 1 and Figure 2 This embodiment of the application is used for automatic screw fastening assembly of the motor body of a large centrifugal fan for a server. It is applicable to the assembly and processing of heavy-duty fan parts. It includes a frame 1, a conveying mechanism 2 and a processing mechanism 4. The conveying mechanism 2 and the processing mechanism 4 are both set on the frame 1. The frame 1 adopts a frame structure. The loading side of the frame 1 is provided with a first operating opening 11 and the unloading side of the frame 1 is provided with a second operating opening 12. The second operating opening 12 is used to connect the unloading process.

[0046] Reference Figure 2 and Figure 3Specifically, the conveying mechanism 2 includes a first displacement drive component 21 and a heavy-duty lifting device 22. The first displacement drive component 21 extends to the outside of the frame 1 and is configured to drive the heavy-duty lifting device 22 to move independently in two mutually perpendicular directions on the horizontal plane, so as to realize the cross-area handling of the fan workpiece between the loading station of the conveying mechanism 2, the processing station of the processing mechanism 4, and the unloading station of the conveying mechanism 2. In this embodiment, the heavy-duty lifting device 22 is set as an electric hoist. The electric hoist is a lifting device that integrates a motor, reducer, drum, wire rope and hook. The motor drives the drum to rotate to wind and unwind the wire rope, and drives the hook to rise and fall in the vertical direction to realize the vertical lifting of heavy objects. The electric hoist has a large lifting capacity and runs smoothly. It is suitable for heavy-duty lifting conditions with frequent start and stop. The hook of the electric hoist is used to cooperate with the standard lifting point of the fan workpiece to perform the grabbing, lifting and releasing actions of the fan workpiece.

[0047] Furthermore, the first displacement drive assembly 21 includes a first sliding rail 211, a first sliding frame 212, a second sliding rail 213, and a second sliding frame 214. The frame 1 is provided with a support frame 3, which has an L-shaped structure. One support frame 3 is located above each of the two sides of the processing mechanism 4. One end of the horizontal side of the support frame 3 is fixed inside the frame 1, and the other end extends to the outside of the frame 1. The vertical side of the support frame 3 and the frame 1 together form a gantry structure. The first sliding rail 211 is respectively located on the lower surface of the horizontal side of the two support frames 3 along the length direction of the two sides. One end of the first sliding rail 211 is located above the processing mechanism 4. The first sliding rail 211 is designed for heavy-duty applications. The linear guide rail has two ends of the first sliding frame 212 slidably connected to the first sliding rail 211 via sliding seats. The first sliding frame 212 is made of high-strength structural profile. There are two second sliding rails 213, which are arranged in parallel and both are set on the first sliding frame 212. The two ends of the second sliding frame 214 are slidably connected to the two second sliding rails 213 via sliding seats. The heavy-duty hoisting lifting device 22 is fixedly set on the second sliding frame 214. The movement of the first sliding frame 212 along the first sliding rail 211 and the movement of the second sliding frame 214 along the second sliding rail 213 together realize the independent movement of the heavy-duty hoisting lifting device 22 in two mutually perpendicular directions on the horizontal plane.

[0048] Furthermore, an elastic buffer 23 is provided at one end of the first sliding rail 211 near the processing mechanism 4. The elastic buffer 23 is provided on the upper surface of the support frame 3. When the first sliding frame 212 moves to the processing station of the processing mechanism 4, it abuts against the elastic buffer 23 and compresses the elastic buffer 23. The elastic buffer 23 is used to absorb the impact kinetic energy generated under heavy load conditions and weaken the vibration amplitude caused by the collision.

[0049] Reference Figure 2 and Figure 4 Furthermore, the processing mechanism 4 includes a second displacement drive assembly 41, two clamping members 42, and at least two processing devices 43. The second displacement drive assembly 41 is configured to drive the two clamping members 42 and at least two processing devices 43 to move independently up and down in the vertical direction, and to drive the two clamping members 42 to move to a symmetrical clamping position and drive the at least two processing devices 43 to move to a processing position. The two clamping members 42 are configured to clamp the fan workpiece synchronously from a symmetrical direction and jointly drive the clamped fan workpiece to rotate uniformly around its own axis. The at least two processing devices 43 are configured to perform processing operations on the assembly points distributed on the fan workpiece during the rotation of the fan workpiece. In this embodiment, the processing part 432 of the processing device 43 is set as an electric screwdriver. The electric screwdriver is an automatic screw fastening device commonly used in the prior art. The electric screwdriver integrates a screw feeder and a torque control system to automatically feed the screw to the underside of the screwdriver bit and screw it into the screw hole of the fan workpiece according to a preset torque.

[0050] Correspondingly, the second displacement drive assembly 41 includes a vertical sliding drive 411, a first transverse sliding drive 412, and a second transverse sliding drive 413. The vertical sliding drive 411 is fixedly installed inside the frame 1. The first transverse sliding drive 412 and the second transverse sliding drive 413 are both slidably connected to the vertical sliding drive 411. Two clamping members 42 are slidably installed on the first transverse sliding drive 412. At least two processing devices 43 are installed on the second transverse sliding drive 413. The second transverse sliding drive 413 is arranged parallel above the first transverse sliding drive 412.

[0051] Specifically, in this embodiment, the vertical sliding drive 411 includes two drive motors and a guide frame. The guide frame is fixedly installed inside the frame 1, and the two drive motors are fixedly installed above the guide frame. The output shafts of the two drive motors are coaxially fixedly provided with lead screws. Each lead screw is threadedly connected to a connecting seat. One connecting seat is fixedly connected to the first transverse sliding drive 412, and the other connecting seat is fixedly connected to the second transverse sliding drive 413. Meanwhile, guide rails are provided on both sides and the middle of the guide frame, and the first transverse sliding drive 412 and the second transverse sliding drive 413 are slidably connected to the guide rails.

[0052] Reference Figure 4 , Figure 5 and Figure 6Furthermore, the first lateral sliding drive 412 and the second lateral sliding drive 413 have similar structures, both employing a drive motor and a lead screw to drive the corresponding processing device 43 to slide and drive the clamping device 42 to slide. In this embodiment, two processing devices 43 are provided, both of which are mounted on the second lateral sliding drive 413 and are threadedly connected to the lead screw of the second lateral sliding drive 413 via a connecting seat. The second lateral sliding drive 413 is arranged parallel above the first lateral sliding drive 412. The vertical sliding drive 411, the first lateral sliding drive 412, and the second lateral sliding drive 413 are all common driving methods in the art, and will not be described in detail here.

[0053] Furthermore, each processing device 43 includes a balancing arm 431 and a processing component 432. One end of the balancing arm 431 is slidably connected to the second lateral sliding drive 413. The processing component 432 is disposed at the end of the balancing arm 431 away from the second lateral sliding drive 413. The balancing arm 431 forms a cantilevered bearing bridge between the second lateral sliding drive 413 and the processing component 432, transmitting the self-weight of the processing component 432 and the feed reaction force during the screw fastening process to the second lateral sliding drive 413. Through the cantilevered layout of the balancing arm 431, the fastening force applied downward by the processing component 432 and the supporting reaction force of the balancing arm 431 form a force couple balance. During the screw fastening process, it automatically absorbs axial impact and maintains the perpendicularity of the bit axis of the processing component 432 to the end face of the screw hole.

[0054] Furthermore, each clamping member 42 includes a clamping arm 421 and a clamping fixture 422. The two clamping fixtures 422 are arranged opposite to each other and have the same structure. The clamping arm 421 is slidably connected to the first lateral sliding drive member 412. The clamping fixture 422 is rotatably connected to the end of the clamping arm 421 away from the first lateral sliding drive member 412. The clamping arm 421 is provided with a rotation drive member 423 for driving the clamping fixture 422 to rotate. The rotation drive member 423 is only provided on one of the clamping arms 421 to drive the clamping fixture 422 to rotate on the clamping arm 421. The other clamping fixture 422 is rotatably provided on the clamping arm 421. In this embodiment, the rotation drive member 423 is configured as a servo motor and a planetary reducer. The clamping fixture 422 is provided with a clamping contouring structure 4221. The clamping contouring structure 4221 is configured as a contouring groove that matches the outer edge contour of the fan workpiece.

[0055] Reference Figure 4 , Figure 7 as well as Figure 8Meanwhile, the processing mechanism 4 also includes a carrier plate 44 and a balancing fixture 45. The carrier plate 44 is used to place the fan workpiece, and the balancing fixture 45 is disposed inside the frame 1, located above the carrier plate 44. The balancing fixture 45 has a clearance opening 451 that matches the shape of the fan workpiece. When the fan workpiece is placed on the carrier plate 44, the fan workpiece is located within the clearance opening 451, and the middle part of the fan workpiece abuts against the side surface of the balancing fixture 45 away from the carrier plate 44.

[0056] Furthermore, the processing mechanism 4 also includes a base plate 46, with a carrier plate 44 fixedly disposed in the middle of the base plate 46. The balancing fixture 45 is provided with at least two height-limiting posts 452. In this embodiment, the balancing fixture 45 is provided with four height-limiting posts 452, located at the four corners of the balancing fixture 45. One end of each height-limiting post 452 is fixedly connected to the balancing fixture 45. The base plate 46 is provided with insertion holes 461 corresponding to the four height-limiting posts 452. The other end of each height-limiting post 452 is inserted into the insertion holes 461 of the base plate 46. (Refer to...) Figure 9 , Figure 10 as well as Figure 11 The clamping fixture 422 is also provided with a limiting structure 4222. The limiting structure 4222 includes a first limiting groove 4222a and a second limiting groove 4222b. The lower surface edges of the two clamping contour structures 4221 are provided with the first limiting groove 4222a. The openings of the two first limiting grooves 4222a are arranged opposite to each other. Each first limiting groove 4222a has a second limiting groove 4222b at both ends along its own length direction. The second limiting groove 4222b is provided through.

[0057] This explains that the first lateral sliding drive 412 drives the two clamping members 42 to further drive the clamping fixture 422 to slide relative to each other. After the clamping contour structure 4221 clamps the fan workpiece, the two sides of the balance fixture 45 are located in the two first limiting grooves 4222a, and the height limiting column 452 passes through the second limiting groove 4222b. That is, the shape of the balance fixture 45 and the height limiting column 452 is adapted to the limiting structure 4222, so that when the clamping contour structure 4221 clamps the fan workpiece, the balance fixture 45 and the height limiting column 452 are just located in the limiting structure 4222.

[0058] Reference Figure 7 , Figure 8 as well as Figure 12In addition, the processing mechanism 4 also includes a drive cylinder 47, which is provided with a cylinder mounting plate 471. The cylinder mounting plate 471 is fixedly installed inside the frame 1, and the cylinder body of the drive cylinder 47 is fixedly installed on the cylinder mounting plate 471, which is located below the carrier plate 44. The piston rod of the drive cylinder 47 extends upward and is fixedly connected to the carrier plate 44. The piston rod of the drive cylinder 47 drives the carrier plate 44, which in turn drives the base plate 46 to move upward, thereby causing the balancing fixture 45, which is connected to the base plate 46 via a height limiting column 452, and the fan workpiece located on the carrier plate 44 to move simultaneously. Displacement sensors 48 are provided on the base plate 46 and the carrier plate 44 for real-time detection. The positions of the carrier plate 44 and the base plate 46 control the lifting stroke of the carrier plate 44 and the base plate 46. In this embodiment, the displacement sensor 48 is set as a pull-rope type displacement sensor 48. The pull rope of the pull-rope type displacement sensor 48 passes through the base plate 46 and the carrier plate 44 in sequence. The pull-rope type displacement sensor 48 is a precision measuring device that converts linear displacement into electrical signals. A highly flexible pull rope is wound inside the pull-rope type displacement sensor 48. The end of the pull rope is fixed to the moving part to be measured. When the carrier plate 44 moves up and down, the pull rope extends and retracts accordingly. The encoder inside the sensor converts the extension and retraction length of the pull rope into a pulse signal or an analog signal output, thereby realizing the accurate measurement of the displacement of the carrier plate 44.

[0059] Referring to 13, furthermore, both the first operating opening 11 and the second operating opening 12 are equipped with safety light curtains 14, which cover the first operating opening 11 and the second operating opening 12. The safety light curtains 14 adopt through-beam detection to ensure the safety of operators. Specifically, grating baffles 13 are provided on the edges of the first operating opening 11 and the second operating opening 12. The infrared beams emitted by the grating baffles 13 cover the first operating opening 11 and the second operating opening 12 respectively, forming the safety light curtains 14. When the operator enters the machine frame 1 through the first operating opening 11 or the second operating opening 12 to perform the workpiece loading and unloading, the infrared beams emitted by the grating baffles 13 are blocked, and the equipment stops or switches to a safe state in time. The first operating opening 11 and the second operating opening 12 are each independently equipped with grating baffles 13. The loading and unloading operations are physically isolated from each other in terms of detection logic. When the operation on one side triggers a safety response, it does not affect the safety monitoring status on the other side.

[0060] The implementation principle of a heavy-duty fan assembly device according to an embodiment of this application is as follows: The first displacement drive component 21 actuates, causing the first sliding frame 212 to move horizontally along the first sliding rail 211, and the second sliding frame 214 to move horizontally along the second sliding rail 213, collaboratively moving the heavy-duty lifting device 22 directly above the loading station. The electric hoist's hook descends and connects with the standard lifting point on the fan workpiece, vertically lifting the workpiece. Subsequently, the first displacement drive component 21 actuates again, horizontally transporting the fan workpiece from the loading station to directly above the processing station of the processing mechanism 4. The electric hoist releases the wire rope, smoothly placing the fan workpiece onto the carrier plate 44.

[0061] After the fan workpiece is placed on the carrier plate 44, the fan workpiece body is located in the clearance opening 451 of the balancing fixture 45. The middle part of the fan workpiece abuts against the upper surface of the balancing fixture 45 to achieve initial positioning. Subsequently, the piston rod of the drive cylinder 47 extends upward, driving the carrier plate 44 and then the base plate 46 to move upward together. The balancing fixture 45 is inserted and engaged with the insertion hole 461 of the base plate 46 through the height limiting column 452, driving the balancing fixture 45 to rise along with it. The fan workpiece on the carrier plate 44 is lifted up by the carrier plate 44 and the balancing fixture 45 together. The pull rope of the pull rope displacement sensor 48 passes through the base plate 46 and the carrier plate 44 in sequence, and extends and retracts in real time with the lifting and lowering movement. The encoder inside the sensor converts the extension and retraction length of the pull rope into an electrical signal output, detects the displacement in real time, and accurately controls the lifting and lowering stroke.

[0062] As the carrier plate 44 is lifted into position, the vertical sliding drive 411 drives the first horizontal sliding drive 412 to descend to a predetermined height. The drive motor of the first horizontal sliding drive 412 drives the lead screw to rotate, and the two clamping members 42 slide and move closer to each other. The contour groove of the clamping contouring structure 4221 fits with the outer contour of the fan workpiece, and the fan workpiece is clamped synchronously from a symmetrical direction. At the same time as the clamping is in place, the two sides of the balancing fixture 45 are precisely embedded in the first limiting groove 4222a on the lower surface of the two clamping contouring structures 4221. The four height limiting posts 452 are respectively inserted into the corresponding second limiting grooves 4222b to form a stable limiting fit.

[0063] After clamping is completed, the vertical sliding drive 411 drives the first horizontal sliding drive 412 to move upward along with the clamped fan workpiece. The height limiting column 452 of the balancing fixture 45 disengages from the insertion hole 461, and the fan workpiece, together with the balancing fixture 45, disengages from the carrier plate 44 and is in a suspended state. The two clamping members 42 apply equal and opposite clamping forces to the fan workpiece from symmetrical directions, so that the force center of the fan workpiece coincides with its own geometric center. Subsequently, the piston rod of the drive cylinder 47 resets, thereby driving the carrier plate 44 and the base plate 46 to reset together.

[0064] The vertical sliding drive 411 lowers the second horizontal sliding drive 413 to the preset processing height. The second horizontal sliding drive 413 then drives the two clamping arms 421 to move to the processing position. The rotation drive 423 is activated, driving the clamping fixture 422 to rotate the fan workpiece around its own axis at a uniform speed. The balancing arm 431 forms a cantilevered load-bearing bridge between the second horizontal sliding drive 413 and the workpiece 432, transferring the weight of the workpiece 432 and the feed reaction force during the screw fastening process to the second horizontal sliding drive 413. During the screw fastening process, it automatically absorbs axial impact and maintains the perpendicularity of the electric screwdriver bit axis to the screw hole end face. The screw feeder and torque control system integrated inside the electric screwdriver automatically feed the screws to the area below the bit and screws into the screw holes distributed around the fan workpiece one by one according to the preset torque, completing the automatic fastening assembly operation.

[0065] After processing, the rotary drive 423 stops rotating, and the vertical sliding drive 411 drives the two clamping parts 42 to move in the opposite direction to release the fan workpiece. At the same time, the piston rod of the drive cylinder 47 extends upward again, driving the carrier plate 44 and then the base plate 46 to move upward together. The fan workpiece falls back onto the carrier plate 44, and the height limit column 452 of the balance fixture 45 is reinserted into the insertion hole 461 of the base plate 46. The vertical sliding drive 411 drives the first transverse sliding drive 412 and the second transverse sliding drive 413 to rise and reset. The piston rod of the drive cylinder 47 retracts, driving the carrier plate 44 and the base plate 46 to descend. The first displacement drive assembly 21 moves the heavy-duty hanging lifting device 22 to above the processing station. The electric hoist hook descends to grab the assembled fan workpiece and horizontally transports the fan workpiece to the unloading station. The unloading process is connected through the second operating opening 12 to complete a complete work cycle.

[0066] Throughout the entire workflow, both the first operating opening 11 and the second operating opening 12 are equipped with safety light curtains 14. Infrared beams emitted by the grating baffle 13 continuously cover the operating openings. When an operator enters the opening area, the infrared beams are blocked, and the equipment immediately stops or switches to a safe state to ensure the operator's safety.

[0067] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A heavy-duty wind turbine assembly equipment, characterized in that: The system includes a frame (1), a conveying mechanism (2), and a processing mechanism (4). Both the conveying mechanism (2) and the processing mechanism (4) are mounted on the frame (1). The conveying mechanism (2) includes a first displacement drive assembly (21) and a heavy-duty lifting device (22). The first displacement drive assembly (21) extends to the outside of the frame (1) and is configured to drive the heavy-duty lifting device (22) to move independently in two mutually perpendicular directions on a horizontal plane, so as to realize cross-regional transportation of the fan workpiece between the loading station of the conveying mechanism (2), the processing station of the processing mechanism (4), and the unloading station of the conveying mechanism (2). The heavy-duty lifting device (22) is configured to grab, lift, and release the fan workpiece. The processing mechanism (4) includes a second displacement drive assembly (41), two clamping members (42), and at least two processing devices (43). The second displacement drive assembly (41) is configured to drive the two clamping members (42) and at least two processing devices (43) to move independently up and down in the vertical direction, and drive the two clamping members (42) to move to a symmetrical clamping position, and drive the at least two processing devices (43) to move to a processing position. The two clamping members (42) are configured to clamp the fan workpiece synchronously from the symmetrical direction, and jointly drive the clamped fan workpiece to rotate at a constant speed around its own axis. The at least two processing devices (43) are configured to perform processing operations on the assembly points distributed on the fan workpiece during the rotation of the fan workpiece.

2. The heavy-duty fan assembly equipment according to claim 1, characterized in that: The first displacement drive assembly (21) includes a first sliding rail (211), a first sliding frame (212), a second sliding rail (213), and a second sliding frame (214). The first sliding rail (211) is disposed on both sides of the processing mechanism (4) and extends to the outside of the frame (1). One end of the first sliding rail (211) is disposed above the processing mechanism (4). Both ends of the first sliding frame (212) are slidably connected to the first sliding rail (211). The second sliding rail (213) is disposed on the first sliding frame (212). The second sliding frame (214) is slidably connected to the second sliding rail (213). The heavy-duty hanging lifting device (22) is fixedly disposed on the second sliding frame (214).

3. The heavy-duty fan assembly equipment according to claim 2, characterized in that: An elastic buffer (23) is provided at one end of the first sliding rail (211) near the processing mechanism (4). When the first sliding frame (212) moves to the processing station of the processing mechanism (4), it abuts against the elastic buffer (23) and compresses the elastic buffer (23).

4. The heavy-duty fan assembly equipment according to claim 1, characterized in that: The second displacement drive assembly (41) includes a vertical sliding drive (411), a first transverse sliding drive (412), and a second transverse sliding drive (413). The vertical sliding drive (411) is fixedly disposed inside the frame (1). The first transverse sliding drive (412) and the second transverse sliding drive (413) are slidably connected to the vertical sliding drive (411). Two clamping members (42) are slidably disposed on the first transverse sliding drive (412). At least two processing devices (43) are disposed on the second transverse sliding drive (413). The second transverse sliding drive (413) is disposed parallel above the first transverse sliding drive (412).

5. The heavy-duty fan assembly equipment according to claim 4, characterized in that: Each of the clamping members (42) includes a clamping arm (421) and a clamping fixture (422). The clamping arm (421) is slidably connected to the first lateral sliding drive member (412). The clamping fixture (422) is rotatably connected to one end of the clamping arm (421) away from the first lateral sliding drive member (412). At least one of the clamping arms (421) is provided with a rotation drive member (423) for driving the clamping fixture (422) to rotate. The rotation drive member (423) is fixedly disposed on the clamping arm (421).

6. The heavy-duty fan assembly equipment according to claim 4, characterized in that: Each of the processing devices (43) includes a balancing arm (431) and a processing component (432), one end of which is slidably connected to the second lateral sliding drive (413), and the processing component (432) is disposed at the end of the balancing arm (431) away from the second lateral sliding drive (413).

7. The heavy-duty fan assembly equipment according to claim 5, characterized in that: The processing mechanism (4) further includes a carrier plate (44) and a balancing fixture (45). The carrier plate (44) is used to place the fan workpiece. The balancing fixture (45) is disposed inside the frame (1) and is located above the carrier plate (44). The balancing fixture (45) has a clearance opening (451) that is adapted to the shape of the fan workpiece. When the fan workpiece is placed on the carrier plate (44), the fan workpiece is located in the clearance opening (451), and the middle part of the fan workpiece abuts against the side surface of the balancing fixture (45) away from the carrier plate (44).

8. The heavy-duty fan assembly equipment according to claim 7, characterized in that: The processing mechanism (4) further includes a base plate (46), and the carrier plate (44) is fixedly disposed in the middle of the base plate (46). The carrier plate (44) and the base plate (46) can slide together along the vertical direction inside the frame (1). The balancing fixture (45) is provided with at least two height limiting columns (452). One end of the at least two height limiting columns (452) is fixedly connected to the balancing fixture (45), and the other end of the at least two height limiting columns (452) is inserted into the base plate (46). In conjunction with the clamping fixture (422), the clamping fixture (4221) includes a clamping contour structure (4221) and a limiting structure (4222). The clamping contour structure (4221) is used to clamp the fan workpiece. The limiting structure (4222) is adapted to the shape of the balancing fixture (45) and the height limiting column (452), so that when the clamping contour structure (4221) clamps the fan workpiece, the balancing fixture (45) and the height limiting column (452) are just located within the limiting structure (4222).

9. The heavy-duty fan assembly equipment according to claim 8, characterized in that: The processing mechanism (4) further includes a drive cylinder (47), the drive cylinder (47) is provided with a cylinder mounting plate (471), the cylinder mounting plate (471) is fixedly disposed inside the frame (1), the cylinder body of the drive cylinder (47) is fixedly disposed on the cylinder mounting plate (471), the cylinder mounting plate (471) is disposed below the carrier plate (44), the piston rod of the drive cylinder (47) extends upward and is fixedly connected to the carrier plate (44), and both the base plate (46) and the carrier plate (44) are provided with displacement sensors (48).

10. The heavy-duty fan assembly equipment according to claim 1, characterized in that: The frame (1) has a first operating opening (11) on the loading side and a second operating opening (12) on the unloading side. The second operating opening (12) is used to connect the unloading process. Both the first operating opening (11) and the second operating opening (12) are equipped with a safety light curtain (14), which covers the first operating opening (11) and the second operating opening (12).

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