Fan blade balancing cutting device

Abstract

The application relates to the technical field of fan blade balance testing, and discloses a fan blade balance cutting device which comprises a rotating assembly, a cutting assembly and a dust removal assembly. The rotating assembly comprises a rotating mechanism provided with a bearing space, the bearing space is used for placing fan blades, the rotating mechanism is used for conveying the fan blades on the bearing space in a rotating direction and sequentially passing through the cutting assembly and the dust removal assembly. The cutting assembly is used for cutting the fan blades placed in the bearing space. The dust removal assembly comprises a sealing mechanism, a vibrating mechanism and an air inlet mechanism. The sealing mechanism is used for sealing the bearing space after abutting against the rotating mechanism. The vibrating mechanism is arranged in the sealing mechanism and the output end abuts against the fan blades. The air inlet mechanism is arranged on the sealing mechanism. The fan blade balance cutting device can improve the dust removal effect, reduce the blowing time of air flow and further reduce energy consumption under the condition of keeping the air blowing pressure unchanged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fan blade balancing test, and particularly relates to a fan blade balancing cutting device. BACKGROUND

[0002] As a key component for improving the comfort of driving and riding, the turbine fan blade for automobile seat ventilation needs to achieve efficient airflow delivery and low noise operation in a limited space. The dynamic balance performance directly affects the stability of the seat ventilation system and the user's perception quality. With the upgrading of the silence requirement of the new energy vehicle cabin, the dynamic balance correction precision of the turbine fan blade needs to reach the milligram level. The micron-level debris (especially the debris of light materials such as polypropylene and nylon) left by cutting processing will introduce a vibration noise source, leading to dynamic balance detection error, and further causing airflow abnormal noise problem. In addition, the seat ventilation module needs to adapt to the design of complex curved surface and multi-hole structure. The traditional dust removal technology cannot completely remove the electrostatically adsorbed debris in the hidden areas such as the blade root and the curved groove, which seriously restricts the yield and production efficiency of high-end vehicles.

[0003] The current automobile seat turbine fan blade balancing cutting device generally adopts a high-pressure pulse air blowing type dust removal scheme. For example, a ring array nozzle is used to direct the blowing of the fan blade surface. Although it can remove part of the surface dust, it is poor in removing debris from complex structures such as blade root grooves and micro guide holes, and it is almost ineffective for sub-millimeter plastic debris adsorbed by static electricity. In order to meet the cleaning standard, the air blowing pressure needs to be increased, which leads to an increase in energy consumption of a single piece. High air pressure can easily cause deformation of light fan blades. Simply relying on airflow kinetic energy cannot break through the limitation of complex geometry (i.e., the direction of turbine complex grooves and holes). If the cleanliness is forcibly improved, the energy efficiency and workpiece integrity will be sacrificed, which directly limits the large-scale and efficient production of automobile seat ventilation fan blades. SUMMARY

[0004] The purpose of the present application is to provide a fan blade balancing cutting device which can improve the dust removal effect and reduce the blowing time of airflow while keeping the air blowing pressure unchanged, and further reduce energy consumption.

[0005] To achieve the above purpose, the present application is implemented by the following technical scheme:

[0006] A fan blade balancing cutting device is designed, which comprises a rotating assembly, a cutting assembly and a dust removal assembly.

[0007] The rotating assembly comprises a rotating mechanism provided with a bearing space, the bearing space is used for placing a fan blade, and the rotating mechanism is used for conveying the fan blade on the bearing space in a rotating direction and sequentially passing through the cutting assembly and the dust removal assembly.

[0008] The cutting assembly is used for cutting the fan blade placed in the bearing space.

[0009] The dust removal assembly comprises a closing mechanism, a vibrating mechanism and an air inlet mechanism, the closing mechanism is used for closing the bearing space after abutting against the rotating mechanism, the vibrating mechanism is arranged in the closing mechanism and the output end abuts against the fan blade, and the air inlet mechanism is arranged on the closing mechanism and used for sending external air into the closing mechanism, and an exhaust pipe is arranged on the closing mechanism and used for exhausting dust and the entering air.

[0010] Optionally, the vibrating mechanism comprises a vibration generating part and an air flow resistance return part fixedly connected in the closing mechanism, the vibration generating part is at least partially located in the air flow resistance return part and used for generating vibration transmitted to the air flow resistance return part, one end of the air flow resistance return part abuts against the fan blade and is used for transmitting the vibration to the fan blade, and the end of the air flow resistance return part away from the fan blade is at least partially located in the output end of the air inlet mechanism and is arranged in a conical frustum shape along the air inlet mechanism towards the fan blade.

[0011] Optionally, the air flow resistance return part comprises a resistance return shell, an adjusting connecting rod and a pre-abutting ring, the vibration generating part is at least partially located in the resistance return shell, the end of the resistance return shell away from the fan blade is at least partially located in the output end of the air inlet mechanism and is arranged in a conical frustum shape along the air inlet mechanism towards the fan blade, the end of the resistance return shell away from the air inlet mechanism is connected with the pre-abutting ring through the adjusting connecting rod, and the pre-abutting ring abuts against the fan blade.

[0012] Optionally, the adjusting connecting rod comprises an outer rod, an inner rod and a disc spring, one end of the outer rod is fixedly connected with the end of the resistance return shell away from the air inlet mechanism, the other end is slidably connected with the inner rod through a groove, the disc spring is arranged in the outer rod and located between the groove bottom of the outer rod and the inner rod, and the disc spring is used for exerting an acting force on the inner rod to push the inner rod to relatively extend out of the outer rod.

[0013] Optionally, the vibration generating part comprises a power shaft and a plurality of vibration springs, the plurality of vibration springs are circumferentially arranged in the air flow resistance return part, the power shaft is at least partially located in the air flow resistance return part and has a tab fixedly connected to the outer surface, and one end of the tab at least partially overlaps one end of the vibration spring in the rotating direction of the power shaft.

[0014] Optionally, the air inlet mechanism comprises an air inlet cover, an air inlet fan blade and a driving shaft, the air inlet cover is fixedly connected with the closing mechanism and has an air outlet end located in the closing mechanism, the driving shaft is at least partially located in the air inlet cover, one end of the driving shaft is connected with a driving part, the air inlet fan blade is arranged on the outer surface of the driving shaft and located in the air inlet cover, and one end of the power shaft located outside the air flow resistance return part is arranged at one end of the driving shaft located in the air inlet cover.

[0015] Optionally, the closing mechanism comprises upper and lower closing covers arranged oppositely, the rotating mechanism is located at the midpoint of the upper and lower closing covers, the opposite ends of the upper and lower closing covers are moved to abut against the surface of the rotating mechanism to form a closed space to close the bearing space, the vibrating mechanism and the air inlet mechanism are arranged in the upper closing cover, and the upper and lower closing covers are provided with exhaust pipes to communicate the closed space with the outside to discharge dust and debris.

[0016] Optionally, the rotating mechanism comprises a rotating disc, a mounting disc and a bearing disc, the rotating disc is provided with a plurality of mounting positions, the number of the mounting disc and the bearing disc corresponds to the mounting positions, the mounting disc is correspondingly mounted on the mounting positions through bolts, and the bearing disc is slidably connected in the mounting disc.

[0017] Optionally, the device further comprises a buffering mechanism, the buffering mechanism comprises a first magnet, a second magnet, a locking rod, a sleeve rod, a first contact and a second contact, the sleeve rod is slidably connected to the surface of the mounting disc through a through hole, the surface of the bearing disc is slidably connected to the sleeve rod through a through hole and the sleeve rod penetrates the surface of the mounting disc, a return spring is arranged between the sleeve rod and the mounting disc, the surface of the upper closing cover facing the rotating disc is provided with a conductive sheet, the first contact and the second contact are fixedly connected to one end of the sleeve rod away from the mounting disc, the first magnet is arranged on the surface of the bearing disc away from the upper closing cover, and the second magnet is arranged on the inner bottom wall of the mounting disc.

[0018] Optionally, the device further comprises a machine table, the rotating mechanism is rotatably connected to the surface of the machine table, the cutting assembly comprises an upper cutting part and a lower cutting part, the upper and lower cutting parts are installed on the surface of the machine table through sliding rails, the upper and lower cutting parts are used for cutting the fan blades placed in the bearing space by moving towards each other, the dust removal assembly is arranged on the surface of the machine table and sequentially arranged on one side of the rotating mechanism along the rotating direction together with the cutting assembly, and the surface of the machine table is further provided with a fan blade balance detection module.

[0019] The application provides a fan blade balance cutting device, which has the following beneficial effects:

[0020] The fan blade balancing and cutting device places the fan blades to be processed in a carrying space. A rotary mechanism transports the fan blades within the carrying space in the rotary direction, passing them sequentially through a cutting assembly and a dust removal assembly. When the fan blades move to the position of the cutting assembly, the cutting assembly cuts the fan blades placed in the carrying space. After the cutting assembly finishes cutting, debris (i.e., waste) remains on the fan blades and in the carrying space. The rotary mechanism then continues transporting the fan blades to the position of the dust removal assembly. A sealing mechanism first abuts against the rotary mechanism to seal the carrying space. Then, a positive pressure gas is supplied to the sealed mechanism through an air intake mechanism to blow air onto the fan blades. During the blowing process, the vibration mechanism generates vibrations that are transmitted to the fan blades, causing them to vibrate and shake off dust and debris. This removes residual debris from the complex structures of the blades, such as curved surfaces, grooves, and shaft holes. The dust and debris are then discharged through the exhaust pipe along with the positive pressure gas. The vibration mechanism prevents dust and debris from adhering to the fan blades and avoids dust residue in areas that the positive pressure airflow cannot reach. It also reduces the time required for dust removal without changing the airflow speed, effectively improving both the dust removal effect and efficiency. Furthermore, it reduces the blowing time and energy consumption. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the fan blade balancing cutting device in this invention;

[0022] Figure 2 This is a schematic diagram of the installation structure of the dust removal component in this invention;

[0023] Figure 3 This is a schematic diagram of the three-dimensional structure of the dust removal component after it is sealed in this invention;

[0024] Figure 4 This is a front view cross-sectional structural diagram of the dust removal component in this invention;

[0025] Figure 5 This is a front view cross-sectional structural diagram of the vibration mechanism in this invention;

[0026] Figure 6 This is a bottom view cross-sectional structural diagram of the backstop shell in this invention;

[0027] Figure 7 In this invention Figure 4 A magnified structural diagram of part A;

[0028] Figure 8 In this invention Figure 4 A magnified structural diagram of part B.

[0029] In the figure: 10, rotating assembly; 11, bearing space; 12, rotating mechanism; 121, rotating disc; 122, mounting disc; 123, bearing disc; 13, buffering mechanism; 131, first magnet; 132, second magnet; 133, locking rod; 134, sleeve rod; 136, reset spring; 20, cutting assembly; 21, upper cutting part; 22, lower cutting part; 30, dust removal assembly; 31, sealing mechanism; 311, upper sealing cover; 312, lower sealing cover; 314, exhaust pipe; 32, vibrating mechanism; 321, vibration generating part; 3211, vibration leaf spring; 3212, power shaft; 3213, push piece; 322, airflow resistance return part; 3221, resistance return shell; 3222, adjusting connecting rod; 32221, outer rod; 32222, inner rod; 32223, disc spring; 3223, pre-resisting ring; 33, air inlet mechanism; 331, air inlet fan blade; 332, drive shaft; 333, air inlet cover; 5, machine table. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. All other embodiments obtained by those skilled in the art without creative labor on the basis of the embodiments in the present application belong to the scope of protection of the present application.

[0031] Referring to Figures 1 to 8 The present application provides a technical solution: a cutting device, which is specifically applied to cutting of a fan blade and simultaneous dynamic balance detection, secondary cutting according to the dynamic balance detection result, and further guarantee of use effect of the fan blade. More specifically, the cut fan blade is applied to a turbine fan for ventilation of a car seat, that is, the turbine fan drives the fan blade to cut, improves dust removal effect and dust removal efficiency without adjustment of air blowing pressure.

[0032] Referring to Figures 1 to 8 The present application provides a technical solution: a fan blade balance cutting device, which comprises a rotating assembly 10, a cutting assembly 20 and a dust removal assembly 30.

[0033] The rotating assembly 10 comprises a rotating mechanism 12 provided with a bearing space 11, the bearing space 11 being used for placing the fan blade, and the rotating mechanism 12 being used for conveying the fan blade on the bearing space 11 in a rotating direction and sequentially passing through the cutting assembly 20 and the dust removal assembly 30.

[0034] The cutting assembly 20 is used for cutting the fan blade placed in the bearing space 11.

[0035] The dust removal assembly 30 comprises a sealing mechanism 31, a vibration mechanism 32 and an air inlet mechanism 33. The sealing mechanism 31 is used to seal the bearing space 11 after abutting against the rotating mechanism 12. The vibration mechanism 32 is arranged in the sealing mechanism 31 and the output end abuts against the fan blade. The air inlet mechanism 33 is arranged on the sealing mechanism 31 and is used to send external gas into the sealing mechanism 31. The sealing mechanism 31 is provided with an exhaust pipe 314 and is used to exhaust dust and incoming gas.

[0036] The rotating mechanism 12 bears the fan blade through the bearing space 11 and sequentially transports the fan blade to the cutting station and the dust removal station along the rotating direction (such as clockwise or counterclockwise). The closed loop design of the rotating mechanism 12 supports batch fan blade continuous processing. The cutting assembly 20 cuts the unbalanced area of the fan blade through a T-shaped milling cutter. The sealing mechanism 31 abuts against the rotating mechanism 12 through the end part to form a sealed cavity, which prevents the overflow of debris and the invasion of external dust into the bearing space 11. The sealing mechanism 31 is matched with a silica gel sealing ring. The vibration mechanism 32 generates vibration and transmits the vibration to the fan blade. The output end of the air inlet mechanism 33 injects external gas into the sealing mechanism 31 in a positive pressure mode. The incoming gas is exhausted together with the dust through the exhaust pipe 314.

[0037] When the fan blade moves to the position of the cutting assembly 20 along with the rotating mechanism 12, the cutting assembly 20 cuts the fan blade placed in the bearing space 11. After the cutting assembly 20 finishes cutting, the cutting debris (i.e., waste) is left on the fan blade and in the bearing space 11. Then the rotating mechanism 12 continues to transport the fan blade to the position of the dust removal assembly 30. The sealing mechanism 31 abuts against the rotating mechanism 12 to seal the bearing space 11. Then the air inlet mechanism 33 sends positive pressure gas into the sealing mechanism 31 to blow the fan blade. In the blowing process, the vibration mechanism 32 generates vibration and transmits the vibration to the fan blade, so that the fan blade vibrates with the vibration transmission. The dust and debris (i.e., waste) on the fan blade are shaken off to remove the residual debris of the complex structure such as the blade curved surface, the groove and the shaft hole. The dust and debris are exhausted together with the positive pressure gas through the exhaust pipe 314. The vibration mechanism 32 is arranged to avoid the dust or debris from adhering to the fan blade and to avoid the dust remaining in the position that cannot be blown by the positive pressure air flow. In addition, the blowing time of the air flow is reduced without changing the air flow speed, which can effectively improve the dust removal effect and efficiency and further reduce the energy consumption.

[0038] In the embodiment, as a preferred solution, the vibration mechanism 32 comprises a vibration generating part 321 and an airflow resistance return part 322 fixedly connected in the sealing mechanism 31, the vibration generating part 321 is at least partially located in the airflow resistance return part 322, used for generating vibration transmitted to the airflow resistance return part 322, and one end of the airflow resistance return part 322 abuts against the fan blade, used for transmitting vibration to the fan blade, and the other end of the airflow resistance return part 322 away from the fan blade is at least partially located in the output end of the air inlet mechanism 33, and is arranged in a frustoconical shape along the air inlet mechanism 33 towards the fan blade;

[0039] The vibration generating part 321 is used for generating vibration transmitted to the airflow resistance return part 322, and the vibration is transmitted to the fan blade through the airflow resistance return part 322, so that the fan blade vibrates to shake off dust, and the dust removal effect and efficiency are improved. Meanwhile, the large end of the airflow resistance return part 322 is close to the fan blade, and the small end (sharp end) is directed towards the air inlet mechanism 33, and a tapered channel is formed between the airflow resistance return part 322 and the sealing mechanism 31, that is, the opening size of the gas flow channel is reduced, so that the gas flow rate contacting the fan blade is increased, the impact force of the airflow is improved, and the dust is blocked to avoid backflow through the gas flow channel;

[0040] Further, a plurality of wave-shaped baffles can be arranged in the gap between the outer surface of the airflow resistance return part 322 and the output end of the air inlet mechanism 33 along the extension direction of the airflow resistance return part 322, so that the airflow flows out through the gap between the baffles, the boundary layer of the airflow is reduced through the baffles, the backflow of dust through the boundary layer is further avoided, and the airflow can also generate certain vortex, so that the dust removal efficiency and effect are further improved.

[0041] In the embodiment, as a preferred solution, the airflow resistance return part 322 comprises a resistance return shell 3221, an adjusting connecting rod 3222 and a pre-abutting ring 3223, the vibration generating part 321 is at least partially located in the resistance return shell 3221, the end of the resistance return shell 3221 away from the fan blade is at least partially located in the output end of the air inlet mechanism 33, and is arranged in a frustoconical shape along the air inlet mechanism 33 towards the fan blade, the end of the resistance return shell 3221 away from the air inlet mechanism 33 is connected with the pre-abutting ring 3223 through the adjusting connecting rod 3222, the pre-abutting ring 3223 abuts against the fan blade, and the airflow passes through the tapered outer surface, so that the flow rate is gradually increased due to the tapered cross-sectional area (large end→small end), a high-speed laminar flow is formed, the covering effect of the airflow on the curved surface and the groove of the fan blade is improved, the vibration energy in the resistance return shell 3221 is transmitted to the pre-abutting ring 3223 through the adjusting connecting rod 3222, and the pre-abutting ring 3223 continuously abuts against the fan blade through the telescopic characteristics, so that stable vibration energy transmission is realized. The pre-abutting ring 3223 abuts against the fan blade, that is, in order to transmit vibration energy and also to press the fan blade, so as to avoid the fan blade from being tilted or displaced by the airflow, thereby affecting the subsequent mechanical hand grabbing or other blanking structure positioning and blanking. The blanking structure is a known technology, and can be a blanking four-axis robot.

[0042] In this embodiment, as a preferred solution, the adjusting connecting rod 3222 includes an outer rod 32221, an inner rod 32222, and a disc spring 32223. One end of the outer rod 32221 is fixedly connected to one end of the resistance return shell 3221 away from the air inlet mechanism 33, and the other end is slidably connected to the inner rod 32222 through a groove. The disc spring 32223 is arranged in the outer rod 32221 and located between the groove bottom of the outer rod 32221 and the inner rod 32222, for applying a force to the inner rod 32222 to push the inner rod 32222 to extend out of the outer rod 32221. The outer rod 32221 is rigidly fixed at one end to the resistance return shell 3221 as a reference point for vibration transmission, ensuring the stability of the energy transmission path. Meanwhile, a sliding groove is formed in the inner wall of the outer rod 32221, and a sliding block cooperating with the sliding groove is arranged on the inner rod 32222 to limit the inner rod 32222 to move only in the axial direction, avoiding lateral deviation to cause vibration energy dispersion. The outer rod 32221 is made of carbon fiber composite material, which has higher bending strength than aluminum alloy, avoiding structural resonance under high-frequency vibration. The inner rod 32222 slides axially in the outer rod 32221, automatically adjusting the extension length according to the thickness of the fan blade. The inner rod 32222 is connected to the pre-abutting ring 3223, which transmits the vibration energy of the resistance return shell 3221 to the surface of the fan blade. The disc spring 32223 pushes the inner rod 32222 to extend with constant axial force, ensuring stable contact between the pre-abutting ring 3223 and the fan blade. The spring pre-tightening force of the disc spring 32223 eliminates mechanical clearance, avoiding energy loss during vibration transmission. The disc spring 32223 only buffers axial impact and does not absorb lateral vibration energy. The spiral spring absorbs lateral vibration energy, affecting the transmission of vibration energy.

[0043] In this embodiment, as a preferred solution, the vibration generating part 321 includes a power shaft 3212 and a plurality of vibration springs 3211. The plurality of vibration springs 3211 are arranged circumferentially in the airflow resistance return part 322, and the power shaft 3212 is at least partially located in the airflow resistance return part 322 with an outer surface fixedly connected to a tab 3213. One end of the tab 3213 at least partially overlaps one end of the vibration spring 3211 in the rotation direction of the power shaft 3212.

[0044] The power shaft 3212 is driven by a motor or a transmission system to provide periodic rotary motion. The outer surface of the power shaft 3212 is fixed with a plurality of plectrums 3213 (6-12 pieces). The plectrum 3213 periodically triggers the vibration leaf spring 3211 through the rotary motion. Specifically, after the plectrum 3213 collides with one end of the vibration leaf spring 3211, the vibration leaf spring 3211 is elastically deformed by the collision of the plectrum 3213. Then, after the plectrum 3213 leaves, the vibration leaf spring 3211 resets to produce elastic vibration, thereby forming a mechanical pulse vibration. A plurality of leaf springs (such as 8 pieces) are arranged in a ring along the inner wall of the airflow resistance return part 322, and the spacing is equal to ensure uniform distribution of vibration energy. The plectrum 3213 periodically collides with the free end of the leaf spring to excite the bending vibration of the leaf spring, generating mechanical shock wave vibration energy. The root of the leaf spring is fixed to the inner wall of the resistance return shell 3221, and the vibration energy is transmitted to the pre-impact ring 3223 and the fan leaf through the resistance return shell 3221. The overlapping length of the end of the plectrum 3213 and the free end of the leaf spring can be adjusted to control the impact contact area and the action time. A plurality of plectrums 3213 and leaf springs are arranged at a specific phase angle (such as 45° apart) to form a continuous vibration wave, avoiding too large energy pulse interval. The impact surface of the plectrum 3213 is inlaid with hard alloy (such as tungsten carbide), and the contact end of the leaf spring is covered with a polyurethane buffer layer to improve the service life.

[0045] In the embodiment, as a preferred scheme, the air inlet mechanism 33 includes an air inlet cover 333, an air inlet fan blade 331, and a drive shaft 332. The air inlet cover 333 is fixedly connected to the sealing mechanism 31, and the air outlet end is located in the sealing mechanism 31. The drive shaft 332 is at least partially located in the air inlet cover 333. One end of the drive shaft 332 is connected to a driving member. The air inlet fan blade 331 is arranged on the outer surface of the drive shaft 332 and located in the air inlet cover 333. One end of the power shaft 3212 located outside the airflow resistance return part 322 is arranged at one end of the drive shaft 332 located in the air inlet cover 333. The air inlet cover 333 is fixed to the sealing mechanism 31 to guide external air into the closed space. The interface between the air inlet cover 333 and the sealing mechanism 31 is connected by a silica gel sealing ring to prevent air leakage and external dust from entering. The driving member is a known technology, which can be a motor. The purpose is to drive the drive shaft 332 to rotate. Through the connection between the drive shaft 332 and the power shaft 3212, the drive shaft 332 can drive the power shaft 3212 to rotate, reducing the use of power sources. At the same time, the drive shaft 332 drives the air inlet fan blade 331 to rotate to generate airflow, which sends external air into the closed space through the air inlet cover 333.

[0046] As a preferred solution in the embodiment, the closing mechanism 31 comprises an upper closing cover 311 and a lower closing cover 312 arranged oppositely, the rotation mechanism 12 is located at the midpoint of the upper closing cover 311 and the lower closing cover 312, the opposite ends of the upper closing cover 311 and the lower closing cover 312 move towards the surface of the rotation mechanism 12 to abut, forming a closed space to close the bearing space 11, the vibration mechanism 32 and the air inlet mechanism 33 are arranged in the upper closing cover 311, the upper closing cover 311 and the lower closing cover 312 are both provided with an exhaust pipe 314 for connecting the closed space with the outside to discharge dust and debris, the upper closing cover 311 and the lower closing cover 312 are arranged on a lifting frame, the lifting frame is provided with a guide rail, two sliding blocks are arranged oppositely on the guide rail, the upper closing cover 311 is arranged on one of the sliding blocks, and the lower closing cover 312 is arranged on the other sliding block, the upper closing cover 311 and the lower closing cover 312 are moved oppositely by controlling the movement of the two sliding blocks, the lifting frame, the guide rail and the sliding blocks are all prior art, which are only cited here, or two hydraulic telescopic rods can be connected to the upper closing cover 311 and the lower closing cover 312 respectively to move the upper closing cover 311 and the lower closing cover 312 oppositely.

[0047] As a preferred solution in the embodiment, the rotation mechanism 12 comprises a rotation disc 121, a mounting disc 122 and a bearing disc 123, a plurality of mounting positions are formed in the rotation disc 121, the number of the mounting disc 122 and the bearing disc 123 corresponds to the mounting positions, the mounting disc 122 is fixed on the mounting positions by bolts, the bearing disc 123 is slidably connected in the mounting disc 122, the bearing space 11 is formed in the surface of the bearing disc 123, the rotation disc 121 can rotate, the mounting positions are multiple, and the cutting work and the dust removal work can be performed simultaneously, further, the dynamic balance detection and the blanking can be performed synchronously, that is, multiple work stations work simultaneously and rotate uniformly, and the work can be continuously performed, the bearing disc 123 can slide in the mounting disc 122 through the connection between the mounting disc 122 and the bearing disc 123, the rotation disc 121 is connected with the output end of the servo motor, the servo motor drives the rotation disc 121 to rotate at a certain angle, and the mounting disc 122 is fixed on the rotation disc 121 by bolts, and the mounting disc 122 can be replaced.

[0048] As a preferred solution in the embodiment, the buffering mechanism 13 comprises a first magnet 131, a second magnet 132, a locking rod 133, a sleeve rod 134, a first contact and a second contact, the surface of the mounting disc 122 is slidably connected with the sleeve rod 134 through the through hole, the surface of the bearing disc 123 is slidably connected with the sleeve rod 134 through the through hole and the sleeve rod 134 penetrates the surface of the mounting disc 122, the reset spring 136 is arranged between the sleeve rod 134 and the mounting disc 122, the conductive sheet is arranged on the surface of the upper closing cover 311 facing the rotary disc 121, the first contact and the second contact are fixedly connected with the end of the sleeve rod 134 away from the mounting disc 122, the first magnet 131 is arranged on the surface of the bearing disc 123 away from the upper closing cover 311, and the second magnet 132 is correspondingly arranged on the inner bottom wall of the mounting disc 122.

[0049] For details, please refer to Figures 4 to 5 The mounting disc 122 is slidably connected with the sleeve rod 134, that is, the sleeve rod 134 is provided with a first position and a second position, when the sleeve rod 134 is arranged at the first position, the reset spring 136 is relatively stretched, at this time, one end of the sleeve rod 134 in the mounting disc 122 abuts against the lower surface of the bearing disc 123, the other end of the sleeve rod 134 is away from the upper surface of the mounting disc 122, the telescopic end of the locking rod 133 abuts against the bearing disc 123, the fixed end of the locking rod 133 is arranged on the outer surface of the mounting disc 122, and the telescopic end of the locking rod 133 is located in the mounting disc 122 and abuts against the bearing disc 123, so as to lock and position the bearing disc 123, when the upper closing cover 311 moves to the rotary mechanism 12, the surface provided with the conductive sheet first abuts against one end of the sleeve rod 134, the conductive sheet contacts the first contact and the second contact, so that the circuit of the locking rod 133 is communicated, then the telescopic end of the locking rod 133 is retracted, the locking and positioning of the bearing disc 123 is released, then the sleeve rod 134 is continuously pushed to move to the rotary mechanism 12, until the pre-abutting ring 3223 contacts the fan blade, until one end of the sleeve rod 134 abuts against the upper surface of the mounting disc 122, and the upper closing cover 311 abuts against the mounting disc 122, the surface of the upper closing cover 311 facing the mounting disc 122 is provided with a groove accommodating the sleeve rod 134, and the conductive sheet is correspondingly arranged in the groove.

[0050] At this time, the sleeve rod 134 is in the second position, the first magnet 131 and the second magnet 132 have the same magnetic pole on the opposite surface, and repulsion is generated to push the fan blade to tightly contact the pre-contact ring 3223, and a non-contact flexible buffering interface is formed with the bearing disc 123. At this time, the elastic pushing force of the disc spring 32223 and the repulsion between the first magnet 131 and the second magnet 132 are balanced, that is, the bearing disc 123 is in the relative midpoint position in the mounting disc 122. Subsequently, vibration transmission and dust removal are performed. In this process, through the action of the first magnet 131 and the second magnet 132, vibration can be filtered, and the fan blade is not affected. Flexible buffering is achieved to ensure the vibration of the fan blade, avoid damage to the fan blade caused by hard connection, further reduce the vibration transmitted to the mounting disc 122, and make the vibration transmitted to the rotary disc 121 to affect the work of other stations. The magnet surface is covered with an insulating coating to avoid static adsorption.

[0051] When the cleaning is completed, the upper closing cover 311 is lifted. At this time, the sleeve rod 134 is subjected to the elastic force of the reset spring 136, and then moves from the second position to the first position to reset. After the pre-contact ring 3223 leaves the fan blade, the bearing disc 123 is lifted and reset by the repulsion of the first magnet 131 and the second magnet 132, until the upper closing cover 311 leaves the sleeve rod 134. The extension end of the locking rod 133 is extended to lock the bearing disc 123. The purpose is to avoid the influence of the lifting of the bearing disc 123 on the cutting accuracy during the pre-cutting, and to avoid the influence of the lifting of the bearing disc 123 on the grabbing position during the post-detection when the fan blade is grabbed.

[0052] The locking rod 133 can be an electric telescopic rod or a hydraulic telescopic rod, or it can be a telescopic rod. The telescopic rod is an installation rod and an extension rod. The installation rod is provided with a spring, so that the extension rod is extended. The bearing disc 123 is provided with a slot corresponding to the surface of the telescopic rod. The slot is provided with a magnet. The extension rod is provided with an electromagnet at the end face corresponding to the slot. The first contact and the second contact are connected in series in the electromagnet circuit. When the first contact and the second contact are not connected, there is no magnetic force. When the upper closing cover 311 contacts the sleeve rod 134, the first contact and the second contact are connected, so that the electromagnet is electrified. The magnetic pole of the magnet is the same, repulsion is generated, the extension rod with the electromagnet is retracted into the installation rod.

[0053] In this embodiment, the disc spring, the first magnet 131, the second magnet 132 and the reset spring 136 are selected for the purpose, and the force is sufficient to support the above process.

[0054] In the embodiment, as a preferred solution, the machine table 5 is further included, the rotating mechanism 12 is rotatably connected to the surface of the machine table 5, the cutting assembly 20 includes the upper cutting part 21 and the lower cutting part 22, the upper cutting part 21 and the lower cutting part 22 are both installed on the surface of the machine table 5 through sliding rails, the upper cutting part 21 and the lower cutting part 22 are used to cut the fan blade placed in the bearing space 11 by moving towards each other, the dust removal assembly 30 is arranged on the surface of the machine table 5 and sequentially arranged on one side of the rotating mechanism 12 along the rotating direction of the rotating mechanism 12, and the surface of the machine table 5 is further provided with the fan blade balance detection module, the fan blade balance detection module, the upper cutting part 21 and the lower cutting part 22 are all prior art known technologies, and here only for reference.

[0055] The traditional dynamic balance repair method currently uses artificial balancing glue, which has the following disadvantages: poor precision, cannot be quantified, relies on manual feeling, low efficiency, and the balancing glue has the risk of falling off; the application uses an automatic mass removal mode, accurately controls the position and precision, is efficient, and effectively absorbs the removed mass without the risk of falling off.

[0056] Although embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fan blade balancing and cutting device, characterized in that: It includes a rotary assembly (10), a cutting assembly (20), and a dust removal assembly (30); The rotary assembly (10) includes a rotary mechanism (12) with a carrying space (11) for placing fan blades. The rotary mechanism (12) is used to transport the fan blades on the carrying space (11) along the rotary direction and pass through the cutting assembly (20) and the dust removal assembly (30) in sequence. The cutting assembly (20) is used to cut the fan blades placed in the carrying space (11); The dust removal assembly (30) includes a sealing mechanism (31), a vibration mechanism (32), and an air intake mechanism (33). The sealing mechanism (31) is used to close the bearing space (11) after abutting against the rotary mechanism (12). The vibration mechanism (32) is located inside the sealing mechanism (31), and its output end abuts against the fan blade. The air intake mechanism (33) is located on the sealing mechanism (31) and is used to send external gas into the sealing mechanism (31). The sealing mechanism (31) is provided with an exhaust pipe (314) for discharging dust and the incoming gas. The vibration mechanism (32) includes a vibration generating part (321) and an airflow blocking part (322) fixedly connected in the closed mechanism (31). The vibration generating part (321) is at least partially located in the airflow blocking part (322) and is used to generate vibration and transmit it to the airflow blocking part (322). One end of the airflow blocking part (322) abuts against the fan blade and is used to transmit vibration to the fan blade. The end of the airflow blocking part (322) away from the fan blade is at least partially located in the output end of the air intake mechanism (33) and is arranged in a frustum shape along the direction of the air intake mechanism (33) towards the fan blade. The airflow blocking part (322) includes a blocking shell (3221), an adjusting rod (3222), and a pre-stop ring (3223). The vibration generating part (321) is at least partially located inside the blocking shell (3221). The end of the blocking shell (3221) facing away from the fan blade is at least partially located inside the output end of the air intake mechanism (33) and is arranged in a frustoconical shape along the direction of the air intake mechanism (33) toward the fan blade. The end of the blocking shell (3221) facing away from the air intake mechanism (33) is connected to the pre-stop ring (3223) through the adjusting rod (3222). The pre-stop ring (3223) abuts against the fan blade.

2. The fan blade balancing and cutting device according to claim 1, characterized in that: The adjusting linkage (3222) includes an outer rod (32221), an inner rod (32222), and a disc spring (32223). One end of the outer rod (32221) is fixedly connected to the end of the backstop shell (3221) away from the intake mechanism (33), and the other end is slidably connected to the inner rod (32222) through a slot. The disc spring (32223) is disposed inside the outer rod (32221) and is located between the bottom of the slot of the outer rod (32221) and the inner rod (32222), and is used to apply a force to the inner rod (32222) to push the inner rod (32222) to extend relative to the outer rod (32221).

3. The fan blade balancing and cutting device according to claim 1, characterized in that: The vibration generating part (321) includes a power shaft (3212) and a plurality of vibrating springs (3211). The plurality of vibrating springs (3211) are circumferentially arranged in the airflow blocking part (322). The power shaft (3212) is at least partially located in the airflow blocking part (322), and a lever (3213) is fixedly connected to its outer surface. One end of the lever (3213) is at least partially aligned with one end of the vibrating spring (3211) along the rotation direction of the power shaft (3212).

4. The fan blade balancing and cutting device according to claim 3, characterized in that: The air intake mechanism (33) includes an air intake shroud (333), an air intake fan blade (331), and a drive shaft (332). The air intake shroud (333) is fixedly connected to the sealing mechanism (31), and the air outlet is located inside the sealing mechanism (31). The drive shaft (332) is at least partially located inside the air intake shroud (333). One end of the drive shaft (332) is connected to a drive component. The air intake fan blade (331) is disposed on the outer surface of the drive shaft (332) and is located inside the air intake shroud (333). One end of the power shaft (3212) located outside the airflow backflow section (322) is disposed at the end of the drive shaft (332) located inside the air intake shroud (333).

5. The fan blade balancing and cutting device according to claim 1, characterized in that: The sealing mechanism (31) includes an upper sealing cover (311) and a lower sealing cover (312) arranged opposite to each other. The rotary mechanism (12) is located at the midpoint between the upper sealing cover (311) and the lower sealing cover (312). The opposite ends of the upper sealing cover (311) and the lower sealing cover (312) move towards each other and abut against the surface of the rotary mechanism (12) to form a closed space that seals the bearing space (11). The vibration mechanism (32) and the air intake mechanism (33) are both arranged inside the upper sealing cover (311). Both the upper sealing cover (311) and the lower sealing cover (312) are provided with exhaust pipes (314) to connect the closed space with the outside and discharge dust and waste.

6. A fan blade balancing and cutting device according to claim 5, characterized in that: The rotary mechanism (12) includes a rotary table (121), a mounting plate (122), and a bearing plate (123). The rotary table (121) has multiple mounting positions. The number of mounting plates (122) and bearing plates (123) corresponds to the mounting positions. The mounting plates (122) are installed at the mounting positions by bolts. The bearing plates (123) are slidably connected in the mounting plate (122). The bearing space (11) is opened on the surface of the bearing plate (123).

7. A fan blade balancing and cutting device according to claim 6, characterized in that: It also includes a buffer mechanism (13), which includes a first magnet (131), a second magnet (132), a locking rod (133), a sleeve rod (134), a first contact and a second contact. The sleeve rod (134) is slidably connected to the surface of the mounting plate (122) through an opening. The sleeve rod (134) is slidably connected to the surface of the mounting plate (122) through an opening. A return spring (136) is provided between the sleeve rod (134) and the mounting plate (122). A conductive sheet is provided on the surface of the upper enclosure (311) facing the rotary table (121). The first contact and the second contact are fixedly connected to the conductive sheet at the end of the sleeve rod (134) away from the mounting plate (122). The first magnet (131) is provided on the surface of the bearing plate (123) away from the upper enclosure (311). The second magnet (132) is provided on the inner bottom wall of the mounting plate (122).

8. A fan blade balancing and cutting device according to claim 7, characterized in that: It also includes a machine base (5), the rotary mechanism (12) is rotatably connected to the surface of the machine base (5), the cutting assembly (20) includes an upper cutting part (21) and a lower cutting part (22), the upper cutting part (21) and the lower cutting part (22) are both installed on the surface of the machine base (5) through sliding rails, the upper cutting part (21) and the lower cutting part (22) are used to move towards each other to cut the fan blades placed in the carrying space (11), the dust removal assembly (30) is set on the surface of the machine base (5), and is arranged sequentially with the cutting assembly (20) on one side of the rotary mechanism (12) along the rotation direction, and the surface of the machine base (5) is also provided with a fan blade balance detection module.

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