Assembly equipment for brushless motor production of unmanned aerial vehicle

Abstract

The invention provides assembly equipment for brushless motor production of an unmanned aerial vehicle, belongs to the technical field of brushless motor production, and solves the technical problems that manual operation is needed for blanking in an existing assembly process, and the situation that equipment hurts people or parts are difficult to take out possibly occurs in the taking-out process. The assembly equipment for brushless motor production of the unmanned aerial vehicle comprises a hot press, a clamping mechanism is arranged on the hot press, a cooling mechanism is arranged on the clamping mechanism, the clamping mechanism comprises two clamping blocks making contact with the hot press, the two clamping blocks are distributed left and right, gel pads are fixed to the opposite ends of the two clamping blocks, cavities are formed in the clamping blocks, and the cooling mechanism is arranged in the cavities. The cooling mechanism comprises a circulating pump. The cooling device has the advantages that materials are mildly cooled while non-contact discharging is achieved and the materials are transferred to the next working procedure, contact heat absorption cooling and air cooling cooling in the cooling process both utilize the same cooling liquid circulation structure, and the energy utilization rate is increased.

Description

Technical Field

[0001] The present invention belongs to the technical field of brushless motor production, and relates to an assembly device for brushless motor production, in particular to an assembly device for brushless motor production of an unmanned aerial vehicle (UAV). Background Art

[0002] As the core power component of an unmanned aerial vehicle, the performance of a brushless motor directly affects the endurance, stability and reliability of the aircraft. With the continuous expansion of the application fields of UAVs (such as logistics, mapping, agricultural plant protection, etc.), the market has put forward higher requirements for the production efficiency, assembly accuracy and consistency of brushless motors. At present, the production and assembly of brushless motors mainly include key processes such as stator winding, rotor magnet assembly, bearing press-fitting, dynamic balance correction, etc. The traditional production method mainly relies on manual operation, supplemented by some semi-automatic equipment, which has problems such as low efficiency and difficulty in ensuring accuracy. In recent years, the industry has gradually introduced automated assembly technologies, such as winding machines with servo control, magnet assembly systems assisted by manipulators, etc., to improve production efficiency and product consistency.

[0003] After retrieval, for example, the Chinese patent document discloses a brushless motor rotor assembly process [Application No.: CN202210165620.5; Publication No.: CN114552921B]. This assembly process includes a movable upper die and a fixed lower die. A positioning sleeve is installed at the center of the lower die to center-position the motor shaft. The outer diameter of the lower die is slightly larger than the inner diameter of the rotor housing. A profiled boss is provided on the upper end face of the lower die near the center. The upper die encloses a cavity. The inner diameter of the cavity is slightly larger than the outer diameter of the rotor housing. A profiled recess is provided on the top end face of the cavity. The profiled recess and the profiled boss are vertically aligned. When the upper and lower dies are closed, the profiled recess and the profiled boss act together to change the profile of the end face of the rotor housing, and the shaping process of the outer edge of the rotor housing after the press-fitting on the motor shaft and the process of changing the profile of the end face of the rotor housing can be carried out simultaneously.

[0004] Although the assembly process disclosed in this patent realizes the synchronous operation of the shaping process and the profiled punching process, the blanking of this assembly process requires manual operation, and there may be situations such as equipment injury or difficult part picking during the taking-out process. Summary of the Invention

[0005] The purpose of the present invention is to address the above problems existing in the prior art, and propose an assembly device for brushless motor production of an unmanned aerial vehicle. The technical problem to be solved by this invention is: how to achieve non-contact blanking and transfer to the next process while gently cooling the material, and both the contact heat absorption cooling and the air-cooling during the cooling process utilize the same coolant circulation structure to improve energy utilization efficiency.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] An assembly device for the production of brushless motors of an unmanned aerial vehicle, comprising a hot press. A clamping mechanism is arranged on the hot press, and a cooling mechanism is arranged on the clamping mechanism. The clamping mechanism includes clamping blocks in contact with the hot press. The number of clamping blocks is two and they are distributed left and right. Gel pads are fixed at the opposite ends of the two clamping blocks, and cavities are formed inside the clamping blocks.

[0008] The cooling mechanism includes a circulating pump. The output end of the circulating pump is connected to the clamping block on the right through a first connecting pipe. The input end of the circulating pump is connected to a cold water discharge pipe. The end of the cold water discharge pipe away from the circulating pump is connected to a water tank. An outlet is formed at the rear end of the water tank, and the outlet is connected to the clamping block on the left through a second connecting pipe. The first connecting pipe and the second connecting pipe are respectively connected to the cavities inside the clamping blocks, and the two clamping blocks are connected through a hose.

[0009] The working principle of the present invention is as follows: The brushless motor is assembled by the hot press. After the assembly is completed, the clamping blocks clamp the material. The outer shell of the clamping block is made of copper alloy and the gel pad both have heat conduction functions. The gel pad absorbs heat from the material with temperature after contact with hot pressing and transfers it to the liquid in the inner cavity of the clamping block wall. The circulating pump operates to make the coolant circulate between the cavity, the first connecting pipe, the cold water discharge pipe, the water tank, the second connecting pipe and the two clamping blocks, adsorbing the temperature of the material between the gel pad and the clamping block, realizing the preliminary cooling of the material and moderating the cooling to avoid deformation caused by rapid cooling. While grasping each part assembled by the brushless motor, the internal coolant absorbs heat, eliminating the steps of separate cooling or transferring to the cooling station, improving production efficiency, and improving the qualified rate of the requirements for preventing deformation of the brushless motor of the unmanned aerial vehicle.

[0010] The clamping mechanism includes a first slide rail. A first motor is fixed on the left side of the first slide rail. The output end of the first motor is fixed with a double-headed screw. Two first sliders are threadedly connected to the double-headed screw. An installation block is fixed at the rear end of the first slider. An installation plate is fixed at the upper position of the rear end of the installation block. A second motor is fixed on the top of the installation plate. The output end of the second motor is fixed with a short screw. The clamping block is threadedly connected to the short screw. A short rod passes through the clamping block, and a limiting piece is fixed at the bottom of the short rod, and the short rod is fixed at the bottom of the installation plate.

[0011] With the above structure, the first motor drives the double-headed bolt to rotate. The first slider does not rotate with the double-headed bolt within the first slide rail. A screw drive is achieved between the first slider and the double-headed bolt, enabling the two first sliders to perform linear motion relative to or towards each other simultaneously, driving the two clamping blocks to approach or separate to achieve the clamping function, and adapting to materials of different widths. The second motor is operated to drive the short screw to rotate. The other end of the clamping block is provided with a short rod so that the clamping block does not rotate with the short screw, realizing a screw drive between the clamping block and the short screw. The clamping block can perform linear motion up and down to dynamically adjust the clamping position, adapting to outer shells of different shapes / sizes (such as special-shaped shells, multi-curved surface designs), avoiding the interference problem of traditional fixed jaws. After hot pressing, the workpiece may undergo local shrinkage or warping. The multi-directionally movable clamping plate can fine-tune the pressure distribution in real time to ensure uniform clamping force, and cooperate with the flexible gel pad to reduce secondary deformation.

[0012] The circulation pump is fixed on the top of the mounting block, and the water tank is fixed on the top of the first slide rail. The top of the water tank is provided with a water inlet, and a semiconductor refrigeration sheet is fixed at the rear end of the water tank.

[0013] With the above structure, the semiconductor refrigeration sheet continuously cools the coolant in the water tank to ensure the refrigeration effect.

[0014] The first connecting pipe and the second connecting pipe are respectively passed through two mounting plates, and a circular groove adapted to the limiting piece is provided at the bottom of the clamping block.

[0015] With the above structure, the limiting piece is located at the bottom of the short rod to limit the descending position of the rear end of the clamping block, and the limiting piece is embedded in the clamping block so that the bottom of the clamping block can fit the bottom surface of the hot press operation platform, which is beneficial for the clamping block to contact the outer shell after hot pressing more stably and improves the stability of clamping the outer shell.

[0016] A transmission mechanism is arranged at the bottom of the cooling mechanism. The transmission mechanism includes a moving frame, and a transmission belt is arranged within the moving frame. The transmission belt is located at the bottom of the clamping block.

[0017] With the above structure, the transmission belt is mainly composed of a motor, transmission rollers and a transmission belt body. The motor is fixed on the moving frame by bolts, and the transmission rollers and the transmission belt body rotate between the moving frames. The operator moves the entire device for clamping and cooling to the position where the hot press discharges materials by pushing the moving frame. During the pushing process, the universal wheels rotate for easy movement. The clamping block for clamping the material transfers the outer shell above the transmission belt body, drives the first motor to rotate in the reverse direction, makes the clamping block perform linear motion relative to each other, releases the clamped material and places it on the transmission belt body. The transmission belt operates to transfer the material to the next production step, replacing the manual direct grasping of high-temperature workpieces, realizing the isolation of the operator from the discharging step, avoiding burns or muscle strain, reducing the risk of high-temperature contact, and preventing falls or collisions caused by fatigue during manual handling.

[0018] The bottom of the mobile rack is installed with universal wheels through bolts.

[0019] With the above structure, the universal wheels are beneficial to the overall movement of the equipment for blanking, facilitating the overall storage and transfer of the equipment.

[0020] A transfer mechanism is arranged between the transmission mechanism and the cooling mechanism. The transfer mechanism includes a second slide rail. The number of the second slide rails is two and they are distributed left and right. A fourth motor is fixed at the front end of the second slide rail on the left side. A lead screw is fixed to the output end of the fourth motor. A slide bar is fixed in the second slide rail on the right side. Second sliders are arranged on both the slide bar and the lead screw. The second slider on the left side is threadedly connected to the lead screw, and the second slider on the right side is sleeved on the slide bar.

[0021] With the above structure, when the fourth motor is operated to drive the lead screw to rotate, the second slider does not rotate with the lead screw in the second slide rail. The second slider and the lead screw achieve a threaded drive, realizing the forward and backward linear movement of the second slider. During this process, the second slider on the right side slides on the slide bar. The two second sliders drive the first slide rail to move linearly at the same time, making the linear movement of the first slide rail more stable. The clamping block moves forward and backward with the first slide rail, clamping the outer shell on the surface of the hot press workbench onto the conveyor belt, so that the clamping block for blanking during the hot pressing process of the hot press does not overlap with the hot pressing space. At the same time, during the process of clamping and removing the blanking, there is no need for the operator to directly contact. The coolant is still circulating during the transfer process, completely overlapping the cooling process with the blanking process, improving production efficiency.

[0022] The first slide rail is fixed on the tops of the two second sliders.

[0023] With the above structure, as the first slide rail moves with the second slider, the first slide rail can move to a position closer to the front of the second slide rail, separating the clamping block from the workbench. While realizing the transfer of the position of the outer shell, it can also be applied to the transfer of materials in other processes, expanding the scope of application.

[0024] A heightening support is fixed on the top of the mobile rack. An installation frame is fixed on the top of the heightening support. The cold water discharge pipe is fixed on the installation frame. A third motor is fixed on the top of the installation frame. A fan blade is fixed to the output end of the third motor. The fan blade is located at the bottom of the cold water discharge pipe.

[0025] With the above structure, the heightening bracket is used to provide a sufficient height of blanking space for the transfer of materials. The first slide rail moves backward to drive the clamping block to move the materials toward the conveyor belt. The third motor is operated to drive the fan blades to rotate. The fan blades rotate above the conveyor belt to achieve air-cooling and cooling, so as to further increase the air-cooling function during the transfer process of heat absorption by contact with the materials. At this time, the materials have undergone heat absorption by contact during the transfer time, realizing step-by-step progressive cooling during the cooling process, improving the cooling efficiency and reducing the risk of deformation. At the same time, the circulating coolant for heat absorption by contact is used to build a cold water drain pipe above the fan blades to cool the air flow of the fan blades, improving the effect of the fan blades blowing air for cooling. During the rotation of the fan blades, the coolant in the cold water drain pipe is further cooled, realizing the mutual optimization of the two cooling methods and improving the energy utilization rate.

[0026] Compared with the prior art, the assembly equipment for the production of brushless motors of this UAV has the following advantages:

[0027] 1. By setting clamping blocks to clamp the materials, the outer shell of the clamping blocks is made of copper alloy and the gel pads both have heat conduction functions. The gel pads absorb heat from the materials with temperature after contact hot pressing and transfer it to the liquid in the inner wall cavity of the clamping blocks. The circulating pump operates to make the coolant circulate between the cavity, the first connecting pipe, the cold water drain pipe, the water tank, the second connecting pipe and the two clamping blocks, adsorbing the temperature of the materials between the gel pads and the clamping blocks, realizing the preliminary cooling of the materials and moderating the cooling to avoid deformation caused by rapid cooling. While grasping the various parts assembled from the brushless motor assembly, heat is absorbed by the internal coolant, eliminating the steps of separate cooling or transferring to the cooling station, improving the production efficiency, and improving the qualified rate of the requirements for preventing deformation of the brushless motor of the UAV.

[0028] 2. By setting fan blades above the conveyor belt, air-cooling and cooling are realized, so as to further increase the air-cooling function during the transfer process of heat absorption by contact with the materials. At this time, the materials have undergone heat absorption by contact during the transfer time, realizing step-by-step progressive cooling during the cooling process, improving the cooling efficiency and reducing the risk of deformation. At the same time, the circulating coolant for heat absorption by contact is used to build a cold water drain pipe above the fan blades to cool the air flow of the fan blades, improving the effect of the fan blades blowing air for cooling. During the rotation of the fan blades, the coolant in the cold water drain pipe is further cooled, realizing the mutual optimization of the two cooling methods and improving the energy utilization rate.

[0029] 3. The outer shell is transferred above the conveyor belt body by the clamping blocks clamping the materials. The first motor is driven to rotate in the reverse direction, so that the clamping blocks move linearly relative to each other, release the clamped materials and place them on the conveyor belt body. The conveyor belt operates to transfer the materials to the next production step, replacing manual direct grasping of high-temperature workpieces, realizing the isolation of the operator from the blanking step, avoiding scalding or muscle strain, reducing the risk of high-temperature contact, and preventing drops or collisions caused by fatigue during manual handling.

[0030] 4. The up-and-down linear motion can be achieved through the clamping block, and the clamping position can be dynamically adjusted to adapt to the shells of different shapes / sizes (such as special-shaped shells and multi-curved surface designs), avoiding the interference problem of traditional fixed jaws. After hot pressing, the workpiece may shrink or warp locally. The multi-directionally movable clamping plate can fine-tune the pressure distribution in real time to ensure uniform clamping force, and cooperate with the flexible gel pad to reduce secondary deformation.

[0031] 5. By operating the fourth motor to drive the lead screw to rotate, the second slider does not rotate with the lead screw in the second slide rail. The second slider and the lead screw achieve screw drive to realize the front-back linear motion of the second slider. During this process, the second slider on the right slides on the slide bar, and the two second sliders drive the first slide rail to move linearly at the same time, making the linear motion of the first slide rail more stable. The clamping block moves back and forth with the first slide rail, clamping the shell on the surface of the hot press workbench to the conveyor belt, so that the clamping block for blanking during the hot pressing process of the hot press does not overlap with the hot pressing space. At the same time, during the process of blanking and clamping, there is no need for the operator to directly contact. The coolant is still circulating during the transfer process, overlapping the cooling process completely with the blanking process, improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is the structural schematic diagram of the present invention.

[0033] Figure 2 is the structural schematic diagram of the moving frame part of the present invention.

[0034] Figure 3 is the structural schematic diagram of the clamping mechanism part of the present invention.

[0035] Figure 4 is the structural schematic diagram of the transfer mechanism part of the present invention.

[0036] Figure 5 is the structural schematic diagram of the limit piece part of the present invention.

[0037] Figure 6 is the structural schematic diagram of the contact between the clamping block and the hot press of the present invention.

[0038] Figure 7 is the structural schematic diagram of the conveyor belt part of the present invention.

[0039] Figure 8 is the structural schematic diagram of the cooling mechanism part of the present invention.

[0040] Figure 9 The structural schematic diagram of the cold water discharge pipe part in the present invention.

[0041] Figure 10 is the structural schematic diagram of the inner cavity of the clamping block of the present invention.

[0042] In the figure, 1 is a hot press; 2 is a transmission mechanism; 201 is a moving frame; 202 is a conveyor belt; 3 is a clamping mechanism; 301 is a first slide rail; 302 is a first motor; 303 is a double-headed screw; 304 is a first slider; 305 is a mounting block; 306 is a mounting plate; 307 is a second motor; 308 is a short screw; 309 is a clamping block; 310 is a gel pad; 311 is a short rod; 312 is a limit piece; 4 is a cooling mechanism; 401 is a mounting frame; 402 is a third motor; 403 is a fan blade; 404 is a water tank; 405 is a cold water discharge pipe; 406 is a circulation pump; 407 is a first connecting pipe; 408 is a second connecting pipe; 409 is a water inlet; 410 is a semiconductor refrigeration sheet; 411 is a heightening bracket; 5 is a transfer mechanism; 501 is a second slide rail; 502 is a fourth motor; 503 is a lead screw; 504 is a second slider; 505 is a slide bar; 6 is a universal wheel. Detailed implementation manners

[0043] The following are specific embodiments of the present invention and in combination with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0044] As Figures 1-10 shown, the assembly equipment for the production of brushless motors of this UAV includes a hot press 1. A clamping mechanism 3 is arranged on the hot press 1. A cooling mechanism 4 is arranged on the clamping mechanism 3. The clamping mechanism 3 includes a clamping block 309 in contact with the hot press 1. The number of the clamping blocks 309 is two and they are distributed left and right. Gel pads 310 are fixed at the opposite ends of the two clamping blocks 309, and a cavity is formed inside the clamping block 309;

[0045] The cooling mechanism 4 includes a circulation pump 406. The output end of the circulation pump 406 is connected to the clamping block 309 on the right through a first connecting pipe 407. The input end of the circulation pump 406 is connected to a cold water discharge pipe 405. One end of the cold water discharge pipe 405 far from the circulation pump 406 is connected to a water tank 404. A water outlet is opened at the rear end of the water tank 404, and the water outlet is connected to the clamping block 309 on the left through a second connecting pipe 408. The first connecting pipe 407 and the second connecting pipe 408 are respectively connected to the cavity inside the clamping block 309, and the two clamping blocks 309 are connected through a hose.

[0046] In this embodiment, the hot press 1 and the circulation pump 406 are both prior arts. The brushless motor is assembled by the hot press 1. After the assembly is completed, the clamping block 309 clamps the material. The outer shell of the clamping block 309 is made of copper alloy and the gel pad 310 both have heat conduction functions. The gel pad 310 absorbs heat from the material with temperature after hot pressing and transfers it to the liquid in the inner cavity of the clamping block 309. The circulation pump 406 operates to make the coolant circulate between the cavity, the first connecting pipe 407, the cold water discharge pipe 405, the water tank 404, the second connecting pipe 408 and the two clamping blocks 309, adsorbing the temperature of the material between the adsorption gel pad 310 and the clamping block 309, realizing the preliminary cooling of the material and moderating the cooling, avoiding deformation caused by rapid cooling. While grasping the parts assembled by the brushless motor, the internal coolant absorbs heat, saving the steps of separate cooling or transferring to the cooling station, improving production efficiency, and improving the qualified rate of the requirements for preventing deformation of the brushless motor of the drone.

[0047] The clamping mechanism 3 includes a first slide rail 301. A first motor 302 is fixed on the left side of the first slide rail 301. The output end of the first motor 302 is fixed with a double-headed screw 303. Two first sliders 304 are threadedly connected to the double-headed screw 303. The rear end of the first slider 304 is fixed with a mounting block 305. At the upper position of the rear end of the mounting block 305, a mounting plate 306 is fixed. The top of the mounting plate 306 is fixed with a second motor 307. The output end of the second motor 307 is fixed with a short screw 308. The clamping block 309 is threadedly connected to the short screw 308. A short rod 311 passes through the clamping block 309, and a limiting piece 312 is fixed at the bottom of the short rod 311, and the short rod 311 is fixed to the bottom of the mounting plate 306.

[0048] In this embodiment, the first motor 302 and the second motor 307 are both prior arts. The first motor 302 drives the double-headed bolt 303 to rotate. The first slider 304 does not rotate with the double-headed bolt 303 in the first slide rail 301. Threaded transmission is realized between the first slider 304 and the double-headed bolt 303, realizing the linear movement of the two first sliders 304 relative to or towards each other at the same time, driving the two clamping blocks to approach or separate to realize the clamping function, and adapting to materials of different widths. Operating the second motor 307 drives the short screw 308 to rotate. The other end of the clamping block 309 is provided with a short rod 311 so that the clamping block 309 does not rotate with the short screw 308, realizing the threaded transmission between the clamping block 309 and the short screw 308. The clamping block 309 can realize linear movement up and down, dynamically adjusting the clamping position, adapting to the outer shells of different shapes / sizes (such as special-shaped shells and multi-curved surface designs), avoiding the interference problem of traditional fixed jaws. After hot pressing, the workpiece may shrink or warp locally. The multi-directionally movable clamping plate can fine-tune the pressure distribution in real time to ensure uniform clamping force, and cooperate with the flexible gel pad 310 to reduce secondary deformation.

[0049] The circulation pump 406 is fixed on the top of the mounting block 305, and the water tank 404 is fixed on the top of the first slide rail 301. An inlet 409 is provided at the top of the water tank 404, and a semiconductor refrigeration sheet 410 is fixed at the rear end of the water tank 404.

[0050] In this embodiment, the semiconductor refrigeration sheet 410 is a prior art. The semiconductor refrigeration sheet 410 continuously cools the coolant in the water tank 404 to ensure the refrigeration effect.

[0051] The first connecting pipe 407 and the second connecting pipe 408 are respectively passed through the two mounting plates 306, and a circular groove adapted to the limiting piece 312 is provided at the bottom of the clamping block 309.

[0052] In this embodiment, the limiting piece 312 is located at the bottom of the short rod 311 to limit the descending position of the rear end of the clamping block 309. And the limiting piece 312 is embedded in the clamping block 309 so that the bottom of the clamping block 309 can fit the bottom surface of the operation platform of the hot press 1, which is beneficial to the clamping block 309 contacting the shell after hot pressing more stably and improves the stability of clamping the shell.

[0053] A transmission mechanism 2 is arranged at the bottom of the cooling mechanism 4. The transmission mechanism 2 includes a moving frame 201, and a transmission belt 202 is arranged inside the moving frame 201. The transmission belt 202 is located at the bottom of the clamping block 309.

[0054] Universal wheels 6 are installed at the bottom of the moving frame 201 through bolts.

[0055] In this embodiment, the transmission belt 202 is a prior art, mainly composed of a motor, transmission rollers and a transmission belt body. The motor is fixed on the moving frame 201 through bolts, and the transmission rollers and the transmission belt body rotate between the moving frames 201. The operator moves the whole device for clamping and cooling to the position where the hot press 1 discharges materials by pushing the moving frame 201. During the pushing process, the universal wheels 6 rotate for easy movement. The clamping block 309 for clamping materials transfers the shell above the transmission belt body. The first motor 302 is driven to rotate in the reverse direction, so that the clamping block 309 moves linearly relative to each other, releases the clamped materials and places them on the transmission belt body. The transmission belt 202 runs to transfer the materials to the next production step, replacing the manual direct grasping of high-temperature workpieces, realizing the isolation between the operator and the discharging step, avoiding scalding or muscle strain, reducing the risk of high-temperature contact, and preventing falls or collisions caused by fatigue during manual handling.

[0056] A transfer mechanism 5 is arranged between the transmission mechanism 2 and the cooling mechanism 4. The transfer mechanism 5 includes a second slide rail 501. The number of the second slide rails 501 is two and they are distributed left and right. A fourth motor 502 is fixed at the front end of the second slide rail 501 on the left side. A lead screw 503 is fixed at the output end of the fourth motor 502. A slide bar 505 is fixed in the second slide rail 501 on the right side. Second sliders 504 are arranged on both the slide bar 505 and the lead screw 503. The second slider 504 on the left side is in threaded connection with the lead screw 503, and the second slider 504 on the right side is sleeved on the slide bar 505.

[0057] In this embodiment, the fourth motor 502 is a prior art. Operating the fourth motor 502 drives the lead screw 503 to rotate. The second slider 504 does not rotate with the lead screw 503 within the second slide rail 501. The second slider 504 and the lead screw 503 achieve a threaded drive, realizing the forward and backward linear motion of the second slider 504. During this process, the second slider 504 on the right side slides on the slide bar 505. The two second sliders 504 drive the first slide rail 301 to move linearly at the same time, making the linear motion of the first slide rail 301 more stable. The clamping block 309 moves back and forth with the first slide rail 301, clamping the outer shell on the surface of the workbench of the hot press 1 onto the conveyor belt 202, so that the clamping block 309 for blanking during the pressing process of the hot press 1 does not overlap with the hot pressing space. At the same time, during the process of blanking and clamping out, there is no need for the operator to directly contact either. The coolant is still circulating during the transfer process, completely overlapping the cooling process with the blanking process, improving the production efficiency.

[0058] The first slide rail 301 is fixed on the tops of the two second sliders 504.

[0059] A heightening support 411 is fixed on the top of the moving frame 201. An installation frame 401 is fixed on the top of the heightening support 411. The cold water discharge pipe 405 is fixed on the installation frame 401. A third motor 402 is fixed on the top of the installation frame 401. A fan blade 403 is fixed at the output end of the third motor 402. The fan blade 403 is located at the bottom of the cold water discharge pipe 405.

[0060] In this embodiment, the third motor 402 is a prior art. The heightening support 411 is used to provide a blanking space with sufficient height for the transfer of materials. The first slide rail 301 moves backward, causing the clamping block 309 to drive the materials to move towards the conveyor belt 202. Operating the third motor 402 drives the fan blade 403 to rotate. The fan blade 403 rotates above the conveyor belt 202, realizing air cooling. This further increases the air cooling function during the transfer process of heat absorption by contact with the materials. And at this time, the materials have already undergone heat absorption and cooling by contact during the transfer time, realizing a step-by-step progressive cooling during the cooling process, improving the cooling efficiency and reducing the risk of deformation.

[0061] Working principle of the present invention: The brushless motor is assembled as a whole through the hot press 1. After the assembly is completed, the operator moves the entire clamping and cooling device to the position where the hot press 1 unloads materials by pushing the moving frame 201. During the pushing process, the universal wheels 6 rotate for easy movement. The fourth motor 502 is operated to drive the lead screw 503 to rotate. The second slider 504 does not rotate with the lead screw 503 within the second slide rail 501. The second slider 504 and the lead screw 503 achieve a threaded drive, realizing the forward and backward linear movement of the second slider 504. During this process, the second slider 504 on the right slides on the slide bar 505, and the two second sliders 504 drive the first slide rail 301 to achieve a linear movement simultaneously, making the linear movement of the first slide rail 301 more stable. The clamping block 309 moves back and forth with the first slide rail 301, clamping the outer shell on the surface of the workbench of the hot press 1 onto the conveyor belt 202, so that the clamping block 309 used for unloading materials during the pressing process of the hot press 1 does not overlap with the hot pressing space. The first motor 302 drives the double-headed bolt 303 to rotate. The first slider 304 does not rotate with the double-headed bolt 303 within the first slide rail 301. The first slider 304 and the double-headed bolt 303 achieve a threaded drive, realizing the simultaneous linear movement of the two first sliders 304 relative to or towards each other, driving the two clamping blocks to approach or separate to achieve the clamping function and adapting to materials of different widths. The second motor 307 is operated to drive the short screw 308 to rotate. The other end of the clamping block 309 is provided with a short rod 311 so that the clamping block 309 does not rotate with the short screw 308. The limiting piece 312 is located at the bottom of the short rod 311, limiting the position where the rear end of the clamping block 309 descends, and the limiting piece 312 is embedded in the clamping block 309 so that the bottom of the clamping block 309 can fit the bottom surface of the operation platform of the hot press 1, which is beneficial for the clamping block 309 to contact the outer shell after hot pressing more smoothly and improves the stability of clamping the outer shell. The threaded drive between the clamping block 309 and the short screw 308 is realized, and the clamping block 309 can achieve up and down linear movement, dynamically adjusting the clamping position to adapt to outer shells of different shapes / sizes. The clamping block 309 clamps the material. The outer shell of the clamping block 309 is made of copper alloy and the gel pad 310 both have heat conduction functions. The gel pad 310 absorbs heat from the material with temperature after hot pressing and transfers it to the liquid in the inner cavity of the clamping block 309. The circulating pump 406 operates to make the coolant circulate between the cavity, the first connecting pipe 407, the cold water discharge pipe 405, the water tank 404, the second connecting pipe 408 and the two clamping blocks 309, adsorbing the temperature of the material between the gel pad 310 and the clamping block 309 to achieve preliminary cooling of the material. The semiconductor refrigeration sheet 410 continuously cools the coolant in the water tank 404 to ensure the refrigeration effect. The clamping block 309 clamping the material transfers the outer shell above the conveyor belt body, drives the first motor 302 to rotate in the reverse direction, makes the clamping block 309 move linearly relative to each other, releases the clamped material and places it on the conveyor belt body. The conveyor belt 202 operates to transfer the material to the next production step. The heightening bracket 411 is used to provide a sufficient height unloading space for the transfer of the material.The first slide rail 301 moves backward to drive the clamping block 309 to move the material toward the conveyor belt 202. The third motor 402 is operated to drive the fan blade 403 to rotate. The fan blade 403 rotates above the conveyor belt 202 to achieve air-cooling and temperature reduction. To further increase the air-cooling function during the transfer process of heat absorption by contact cooling of the material, a cold water discharge pipe 405 located above the fan blade 403 is built using the circulating coolant for heat absorption by contact cooling, to cool the air flow of the fan blade 403 and improve the effect of the fan blade 403 in blowing air for temperature reduction. Moreover, during the rotation of the fan blade 403, the coolant in the cold water discharge pipe 405 is further cooled, realizing the mutual optimization of the two temperature reduction methods and improving the energy utilization rate.

[0062] In summary, by setting the clamping mechanism, the temperature reduction mechanism and the transfer mechanism, non-contact blanking is achieved and the material is transferred to the next process while being gently cooled, and both the heat absorption by contact cooling and the air-cooling during the cooling process utilize the same coolant circulation structure, improving the function of energy utilization rate.

[0063] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. An assembly device for the production of brushless motors of an unmanned aerial vehicle, comprising a hot press (1), characterized in that, A clamping mechanism (3) is provided on the hot press (1), and a cooling mechanism (4) is provided on the clamping mechanism (3). The clamping mechanism (3) includes clamping blocks (309) in contact with the hot press (1). The number of clamping blocks (309) is two and they are distributed left and right. Gel pads (310) are fixed at the opposite ends of the two clamping blocks (309), and cavities are formed in the clamping blocks (309). The cooling mechanism (4) includes a circulation pump (406). The output end of the circulation pump (406) is connected to the clamping block (309) on the right through a first connecting pipe (407). The input end of the circulation pump (406) is connected to a cold water discharge pipe (405). The end of the cold water discharge pipe (405) far from the circulation pump (406) is connected to a water tank (404). A water outlet is provided at the rear end of the water tank (404), and the water outlet is connected to the clamping block (309) on the left through a second connecting pipe (408). The first connecting pipe (407) and the second connecting pipe (408) are respectively connected to the cavities inside the clamping blocks (309), and the two clamping blocks (309) are connected through a hose.

2. The assembling device for the production of the brushless motor of a drone according to claim 1, characterized in that, The clamping mechanism (3) includes a first slide rail (301). A first motor (302) is fixed on the left side of the first slide rail (301). The output end of the first motor (302) is fixed with a double-headed screw rod (303). Two first sliders (304) are threadedly connected to the double-headed screw rod (303). An installation block (305) is fixed at the rear end of the first slider (304). An installation plate (306) is fixed at the upper position of the rear end of the installation block (305). A second motor (307) is fixed on the top of the installation plate (306). The output end of the second motor (307) is fixed with a short screw rod (308). The clamping block (309) is threadedly connected to the short screw rod (308). A short rod (311) penetrates through the clamping block (309), and a limiting piece (312) is fixed at the bottom of the short rod (311), and the short rod (311) is fixed at the bottom of the installation plate (306).

3. The assembling device for the production of the brushless motor of a drone according to claim 2, characterized in that, The circulation pump (406) is fixed on the top of the installation block (305). The water tank (404) is fixed on the top of the first slide rail (301). A water inlet (409) is provided at the top of the water tank (404). A semiconductor refrigeration sheet (410) is fixed at the rear end of the water tank (404).

4. The assembly equipment for the production of a brushless motor of an unmanned aerial vehicle according to claim 2, characterized in that, The first connecting pipe (407) and the second connecting pipe (408) respectively penetrate through the two installation plates (306), and a circular groove adapted to the limiting piece (312) is provided at the bottom of the clamping block (309).

5. The assembling device for the production of the brushless motor of an unmanned aerial vehicle according to claim 1, characterized in that, A transmission mechanism (2) is provided at the bottom of the cooling mechanism (4). The transmission mechanism (2) includes a moving frame (201). A transmission belt (202) is arranged inside the moving frame (201), and the transmission belt (202) is located at the bottom of the clamping block (309).

6. The assembly device for the production of a brushless motor of an unmanned aerial vehicle according to claim 5, characterized in that, Universal wheels (6) are installed at the bottom of the moving frame (201) through bolts.

7. An assembly device for the production of a brushless motor of a drone according to claim 1, characterized in that, A transfer mechanism (5) is arranged between the transmission mechanism (2) and the cooling mechanism (4). The transfer mechanism (5) includes a second slide rail (501). The number of the second slide rails (501) is two and they are distributed left and right. A fourth motor (502) is fixed at the front end of the second slide rail (501) on the left side. A lead screw (503) is fixed at the output end of the fourth motor (502). A slide bar (505) is fixed in the second slide rail (501) on the right side. Second sliders (504) are arranged on both the slide bar (505) and the lead screw (503). The second slider (504) on the left side is threadedly connected to the lead screw (503), and the second slider (504) on the right side is sleeved on the slide bar (505).

8. An assembly device for the production of a brushless motor of a drone according to claim 7, characterized in that, The first slide rail (301) is fixed on the tops of the two second sliders (504).

9. An assembly device for the production of a brushless motor of a drone according to claim 1, characterized in that, A heightening bracket (411) is fixed on the top of the moving frame (201). An installation frame (401) is fixed on the top of the heightening bracket (411). A cold water discharge pipe (405) is fixed on the installation frame (401). A third motor (402) is fixed on the top of the installation frame (401). A fan blade (403) is fixed at the output end of the third motor (402). The fan blade (403) is located at the bottom of the cold water discharge pipe (405).

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