Production system of micro motor

Abstract

The invention relates to the technical field of micro motor automatic production, in particular to a micro motor production system which comprises an automatic assembly module, an intelligent detection module, a cooling system and a plurality of transfer robots. The automatic assembly module comprises a first assembly station, a second assembly station, a third assembly station, a fourth assembly station, a fifth assembly station, a sixth assembly station and a seventh assembly station; the automatic assembly module further comprises a plurality of feeding devices. The intelligent detection module is used for carrying out fault detection on the assembled micro motor; and the cooling system is used for cooling the micro motor in the assembling process. According to the invention, automatic production is realized, and the assembly efficiency of parts of the micro motor can be improved; the working state of the motor is monitored in real time; comprehensive understanding of the health condition of the micro motor is enhanced, potential risks can be found in the early stage, safety accidents caused by motor faults are avoided, and production safety and product quality are guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of micro-motor automated production, and in particular to a micro-motor production system. Background Art

[0002] With the rapid development of science and technology, micro motors, as key components in many electronic devices, are increasingly used in a wide range of applications, covering high-tech products such as smartphones, wearable devices, drones, and robots. The performance, precision, and reliability of micro motors are directly related to the quality of the entire product and user experience. Therefore, how to produce micro motors efficiently and with high quality has become the focus of the industry.

[0003] Traditional micro motor production methods mainly rely on manual or semi-automatic equipment, which has problems such as low production efficiency, difficult to ensure assembly accuracy, and incomplete quality inspection. In addition, as the speed of product replacement accelerates, the production system needs to be frequently adjusted to adapt to the production needs of different models of micro motors, which further increases production costs and difficulties.

[0004] In recent years, with the rapid development of industrial automation and intelligent technology, automated production lines and intelligent detection systems have been widely used in the manufacturing industry. However, in the field of micro motor production, micro motors are directly packaged and shipped after production, and there is a lack of detection of the working status of micro motors. Traditional detection is only manual detection of the appearance of micro motors and detection of the starting status of micro motors. At present, there is a clear lack of systems to monitor the stability of the working status of motors.

[0005] Therefore, it is urgent to develop advanced technologies such as integrated automated assembly and intelligent detection to achieve efficient, intelligent and refined micro-motor production, providing strong support for the development of the micro-motor manufacturing industry. Summary of the invention

[0006] In view of the problems of the prior art, the present invention provides a micro motor production system to realize automated production, which is beneficial to improving the assembly efficiency between the various components of the micro motor; real-time monitoring of the motor working status, immediate triggering of the early warning mechanism, and timely notification of technical personnel to the micro motor failure status for easy troubleshooting; the invention of this application enhances the comprehensive understanding of the health status of the micro motor, can discover potential risks at an early stage, avoid safety accidents caused by motor failure, and ensure production safety and product quality.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0008] The present invention provides a micro motor production system, which includes an automated assembly module, an intelligent detection module, a cooling system, and a plurality of transfer robots;

[0009] The automated assembly module includes a first assembly station for assembling the rear axle sleeve on the rear end cover, a second assembly station for assembling the rear end cover on the rear end of the stator frame, a third assembly station for assembling the rotor inside the stator frame, a fourth assembly station for assembling the front axle sleeve on the front end cover, a fifth assembly station for assembling the front end cover on the front end of the stator frame, a sixth assembly station for assembling the stator frame in the housing, and a seventh assembly station for assembling the protective cover on the front end opening of the housing;

[0010] The automated assembly module further comprises a plurality of feeding devices, which are respectively used to transmit the rear sleeve, the rear end cover, the stator frame, the rotor, the front sleeve, the front end cover, the housing and the protective cover for loading;

[0011] The intelligent detection module is used to perform fault detection on the assembled micro motor;

[0012] The cooling system is used to cool the micro motor during the assembly process.

[0013] Wherein, a first hot melt station is further provided between the first assembly station and the second assembly station, and the first hot melt station is used to heat and hot melt the rear positioning pins on both sides of one end surface of the rear end cover to a preset temperature;

[0014] The cooling system comprises a first cooling station, wherein the first cooling station is provided with a first fan, and the first fan is used for blowing air to cool the rear end cover and the stator frame after they are assembled.

[0015] Wherein, a second hot melt station is provided between the fourth assembly station and the fifth assembly station, and the second hot melt station is used to heat and hot melt the front positioning pins on both sides of one end surface of the front end cover to a preset temperature;

[0016] The cooling system comprises a second cooling station, and the second cooling station is provided with a second fan, and the second fan is used for blowing air to cool the front end cover and the stator frame after they are assembled.

[0017] Wherein, a third hot-melt station is provided between the fifth assembly station and the sixth assembly station, and the third hot-melt station is used to heat and hot-melt the stator positioning columns on both sides of the outer wall of the stator frame to a preset hot-melt temperature;

[0018] The cooling system comprises a third cooling station, and the third cooling station is provided with a third fan, and the third fan is used for blowing air to cool the stator frame and the shell after they are assembled.

[0019] Wherein, a fourth hot-melt station is arranged between the sixth assembly station and the seventh assembly station, and the fourth hot-melt station is used to heat and hot-melt the protective cover positioning columns on both sides of the lower end of the protective cover to a preset hot-melt temperature;

[0020] The cooling system comprises a fourth cooling station, and the fourth cooling station is provided with a fourth fan, and the fourth fan is used for blowing air to cool the protective cover and the shell after they are assembled.

[0021] Wherein, the intelligent detection module includes a detection system, and the detection system includes an encoder, a first temperature sensor, a second temperature sensor, a third temperature sensor, a torque sensor, a data acquisition unit and a monitoring terminal, and the encoder, the first temperature sensor, the second temperature sensor, the third temperature sensor, and the torque sensor are respectively connected to the data acquisition unit by signal; the data acquisition unit is connected to the monitoring terminal by signal;

[0022] The encoder is installed on the output shaft of the motor; the first temperature sensor is installed on the stator winding of the motor, the second temperature sensor is installed on the inner wall of the housing of the motor, and the third temperature sensor is installed on the bearing of the motor; the torque sensor is installed on the output shaft of the motor;

[0023] The data acquisition unit is used to collect data detected by the encoder, the first temperature sensor, the second temperature sensor, the third temperature sensor, and the torque sensor, and send the data to the monitoring terminal; the monitoring terminal determines whether the received data is abnormal based on preset parameters, and if there is abnormal data, sends an early warning message to the technician.

[0024] Among them, when the data acquisition unit collects the speed data of the encoder, the speed data and its time point are saved and recorded, and a waveform graph of the speed change over time is formed, and the waveform graph of the speed change over time is sent to the monitoring terminal; the monitoring terminal compares the received speed change over time waveform graph with the preset speed time waveform graph. If the waveform graph conforms to the change curve, it is determined to be working normally; if the waveform graph does not conform to the change curve, it is determined to be working abnormally, and an early warning message is sent to the technician.

[0025] Among them, when the detected waveform conforms to the change curve, the error values ​​of each peak and / or trough in the speed change waveform over time and each peak and / or trough in the preset speed time waveform are detected. If the error value is greater than 2rps for more than 5 times within 60 seconds, it is judged as an operating abnormality and an early warning message is sent to the technician.

[0026] Wherein, the monitoring terminal is provided with a preset safety temperature threshold; the preset safety temperature threshold includes a first temperature threshold, a second temperature threshold and a third temperature threshold; when the data acquisition unit acquires data from the first temperature sensor, the second temperature sensor and the third temperature sensor, the acquired temperature data is saved and recorded, and sent to the monitoring terminal; when the real-time temperature value of the first temperature sensor, the real-time temperature value of the second temperature sensor and the real-time temperature value of the third temperature sensor respectively received by the monitoring terminal simultaneously exceed the first temperature threshold, the second temperature threshold and the third temperature threshold respectively, it is determined as a working abnormality, and an early warning message is sent to the technician;

[0027] When only one or two of the real-time temperature values ​​of the first temperature sensor, the second temperature sensor, and the third temperature sensor exceed the preset safety temperature threshold, data continues to be received. If one or two of the real-time temperature values ​​of the first temperature sensor, the second temperature sensor, and the third temperature sensor exceed the preset safety temperature threshold for more than 5 times within 5 minutes, it is determined as an operating abnormality and an early warning message is sent to the technician.

[0028] Wherein, the detection system further comprises an infrared thermal imaging detection unit, the infrared thermal imaging detection unit comprises a first infrared thermal imager, a second infrared thermal imager and a third infrared thermal imager, the first infrared thermal imager, the second infrared thermal imager and the third infrared thermal imager are respectively connected to the data acquisition unit by signal;

[0029] The shooting end of the first infrared thermal imager is aimed at the output shaft of the motor;

[0030] The shooting end of the second infrared thermal imager is aimed at the bearing of the motor output shaft;

[0031] The shooting end of the third infrared thermal imager is aimed at the outer surface of the motor;

[0032] The data acquisition unit respectively sends the thermal images acquired from the first infrared thermal imager, the second infrared thermal imager and the third infrared thermal imager to the monitoring terminal.

[0033] Beneficial effects of the present invention:

[0034] The invention of the present application is cleverly designed. When working, various parts of the micro motor (including the rear bushing, the rear end cover, the stator frame, the rotor, the front bushing, the front end cover, the outer shell and the protective cover) are respectively transferred for loading through multiple feeding devices; various parts of the micro motor are transferred to the corresponding assembly stations in the automated assembly module through multiple transfer robots, and the assembly of the micro motor is completed through the first assembly station, the second assembly station, the third assembly station, the fourth assembly station, the fifth assembly station, the sixth assembly station and the seventh assembly station of the automated assembly module, and the automated production efficiency is high; wherein, the cooling system is used to cool the micro motor during the assembly process, It is beneficial to improve the assembly efficiency between the various parts of the micro motor; then the assembled micro motor is transferred to the intelligent detection module through the transfer robot to monitor the working status of the micro motor after startup, and monitor whether the micro motor has any faults after working. The monitoring process does not require frequent manual on-site inspections, which greatly improves maintenance efficiency and reduces labor costs. It monitors the working status of the motor in real time, immediately triggers the early warning mechanism, and promptly notifies the technicians of the faults of the micro motor for easy troubleshooting; the invention of this application enhances the comprehensive understanding of the health status of the micro motor, can discover potential risks at an early stage, avoid safety accidents caused by motor failures, and ensure production safety and product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 The present invention is a block diagram of the principle of a micro motor production system.

[0036] Figure 2 It is a principle block diagram of the detection system of the present invention.

[0037] Figure 3 This is a structural exploded view of the micro motor produced by the present invention.

[0038] Figure 4 This is a cross-sectional view of the micro motor produced by the present invention.

[0039] Figure 5 It is a schematic structural diagram of the mounting frame of the present invention.

[0040] exist Figures 1 to 5 Reference numerals in the drawings include:

[0041] 100. Automated assembly module; 200. Intelligent detection module; 300. Cooling system; 400. Feeding device; 500. Data acquisition unit; 600. Monitoring terminal;

[0042] 1. Shell; 2. Protective cover; 3. Stator frame; 4. Rotor; 5. Rotating shaft; 6. Front cover; 7. Rear cover; 8. Coil; 9. Outer center axis hole; 10. Front center axis hole; 11. Front bushing; 12. Rear center axis hole; 13. Rear bushing; 14. Rear positioning pin; 15. Rear positioning socket; 16. Front positioning pin; 17. Front positioning socket; 18. Abutment block; 19. Cavity; 20. Support platform; 21. Stator Positioning column; 22, stator positioning hole; 23, end cover support body; 24, front end mounting groove; 25, support block; 26, protective cover plug hole; 27, protective cover positioning column; 28, protective cover groove; 101, universal damping ball head bracket; 102, telescopic rod; 103, mounting base; 104, mounting hole; 105, outer sleeve; 106, inner sleeve; 107, positioning steel ball; 108, positioning hole; 109, mounting frame. DETAILED DESCRIPTION

[0043] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with the embodiments and drawings, and the contents mentioned in the embodiments are not intended to limit the present invention. The present invention is described in detail below in conjunction with the drawings.

[0044] Embodiment 1

[0045] A production system for micro motors, such as Figure 1 to Figure 2 As shown, it includes an automated assembly module 100, an intelligent detection module 200, a cooling system 300 and a plurality of transfer robots; the automated assembly module 100 includes a first assembly station for installing the rear shaft sleeve 13 on the rear end cover 7, a second assembly station for assembling the rear end cover 7 on the rear end of the stator frame 3, a third assembly station for assembling the rotor 4 inside the stator frame 3, a fourth assembly station for installing the front shaft sleeve 11 on the front end cover 6, a fifth assembly station for assembling the front end cover 6 on the front end of the stator frame 3, and a fifth assembly station for assembling the rear shaft sleeve 13 on the rear end cover 7. The stator frame 3 is assembled at the sixth assembly station in the outer shell 1, and the protective cover 2 is assembled at the seventh assembly station at the front end opening of the outer shell 1; the automated assembly module 100 also includes a plurality of feeding devices 400, and the plurality of feeding devices 400 are respectively used to transmit the rear sleeve 13, the rear end cover 7, the stator frame 3, the rotor 4, the front sleeve 11, the front end cover 6, the outer shell 1 and the protective cover 2 for loading; the intelligent detection module 200 is used to perform fault detection on the assembled micro motor; the cooling system 300 is used to cool the micro motor during the assembly process.

[0046] Specifically, the embodiment of the present application is cleverly designed. When working, multiple feeding devices 400 are used to transfer various components of the micro motor (including the rear sleeve 13, the rear cover 7, the stator frame 3, the rotor 4, the front sleeve 11, the front cover 6, the shell 1 and the protective cover 2) for loading; multiple transfer robots are used to transfer various components of the micro motor to the corresponding assembly stations in the automated assembly module 100, and the assembly of the micro motor is completed through the first assembly station, the second assembly station, the third assembly station, the fourth assembly station, the fifth assembly station, the sixth assembly station and the seventh assembly station of the automated assembly module 100; wherein the cooling system 300 is used to cool the micro motor during the assembly process. Cooling is beneficial to improving the assembly efficiency between the various parts of the micromotor; then the assembled micromotor is transferred to the intelligent detection module 200 by the transfer robot to monitor the working status of the micromotor after startup, and monitor whether the micromotor fails after working. The monitoring process does not require frequent manual on-site inspections, which greatly improves maintenance efficiency and reduces labor costs. The motor working status is monitored in real time, and the early warning mechanism is triggered immediately to notify the technicians in time of the micromotor failure for easy investigation; the embodiment of the present application enhances the comprehensive understanding of the health status of the micromotor, can discover potential risks at an early stage, avoid safety accidents caused by motor failures, and ensure production safety and product quality.

[0047] Of course, in the actual production process, the intelligent detection module 200 can be used to monitor the micro motor in a random sampling manner, rather than monitoring every micro motor, to ensure the efficiency of the automated production of the embodiment of the present application.

[0048] In the present application embodiment, Figure 1 As shown, a first hot melt station is further provided between the first assembly station and the second assembly station, and the first hot melt station is used to heat and hot melt the rear positioning pins 14 on both sides of one end surface of the rear end cover 7 to a preset temperature; the cooling system 300 includes a first cooling station, and the first cooling station is provided with a first fan, and the first fan is used to blow air to cool the rear end cover 7 and the stator frame 3 after assembly;

[0049] Among them, a second hot melt station is arranged between the fourth assembly station and the fifth assembly station, and the second hot melt station is used to heat and melt the front positioning pins 16 on both sides of one end face of the front end cover 6 to a preset temperature; the cooling system 300 includes a second cooling station, and the second cooling station is provided with a second fan, and the second fan is used to blow air to cool the front end cover 6 and the stator frame 3 after assembly.

[0050] Among them, a third hot melt station is arranged between the fifth assembly station and the sixth assembly station, and the third hot melt station is used to heat and hot melt the stator positioning columns 21 on both sides of the outer wall of the stator frame 3 to a preset hot melt temperature; the cooling system 300 includes a third cooling station, and the third cooling station is provided with a third fan, and the third fan is used to blow air to cool the stator frame 3 and the shell 1 after assembly.

[0051] Among them, a fourth hot melt station is arranged between the sixth assembly station and the seventh assembly station, and the fourth hot melt station is used to heat and hot melt the protective cover positioning columns 27 on both sides of the lower end of the protective cover 2 to a preset hot melt temperature; the cooling system 300 includes a fourth cooling station, and the fourth cooling station is provided with a fourth fan, and the fourth fan is used to blow air to cool the protective cover 2 and the outer shell 1 after assembly.

[0052] Specifically, during the assembly process of the embodiment of the present application, Figure 3 to Figure 4As shown, first feed the rear sleeve 13 and the rear end cover 7, and install the rear sleeve 13 in the rear middle shaft hole 12 of the rear end cover 7; heat and hot-melt the rear positioning pins 14 on both sides of one end face of the rear end cover 7 to a preset temperature, feed the stator frame 3, and assemble the rear end cover 7 in the rear end opening of the stator frame 3 with the coil 8, wherein the heated and hot-melted rear positioning pins 14 are inserted into the rear positioning holes 15 on both sides of the inner wall of the stator frame 3. During the assembly process, the heated and hot-melted rear positioning pins 14 are inserted into the rear positioning holes 15, and then cooled (through the first A fan is used for cooling to improve the cooling efficiency and thus improve the production efficiency), the rear positioning pin 14 is heated and melted and welded in the rear positioning socket 15, and the rear end cover 7 is stably connected to the stator frame 3 and is not easy to loosen; then the rotating shaft 5 integrally formed with the rotor 4 is loaded, and the rear end of the rotating shaft 5 integrally formed with the rotor 4 is inserted from the inner front end of the stator frame 3 into the rear shaft sleeve 13 of the rear end cover 7, and the rotating shaft 5 is movably arranged in the rear shaft sleeve 13 to realize the rear end positioning of the rotating shaft 5; then the front shaft sleeve 11 and the front end cover 6 are loaded, and the front shaft sleeve 11 is installed on the front end cover 6, align the front sleeve 11 of the front cover 6 with the front end of the rotating shaft 5, drive the front cover 6 to move, so that the front end of the rotating shaft 5 passes through the front sleeve 11 of the front cover 6, and pre-position the front cover 6; heat and melt the front positioning pins 16 on both sides of one end face of the front cover 6 to a preset temperature; assemble the front cover 6 to the front end opening of the stator frame 3, and then insert the hot-melted front positioning pins 16 into the front positioning holes 17 on both sides of the inner wall of the stator frame 3. The front positioning pin 16 is heated and melted in the front positioning pin 17, and the front end cover 6 is stably connected to the stator frame 3 and is not easy to loosen; then the outer shell 1 is loaded, and the stator frame 3 with the coil 8 is assembled into the outer shell 1 from the front end opening of the outer shell 1; the protective cover 2 is loaded, and the protective cover 2 is assembled to the front end opening of the outer shell 1 to close the front end opening of the outer shell 1, and the protective cover 2 is provided with an outer center axis hole 9 for the front end of the rotating shaft 5 to pass through.

[0053] In the embodiment of the present application, abutment blocks 18 are extended on both sides of the outer wall of the stator frame 3, the outer shell 1 is provided with a cavity 19, and support platforms 20 are provided on both sides of the inner wall of the cavity 19. The abutment blocks 18 are located above the support platforms 20, and at least one stator positioning column 21 is provided at the lower end of the abutment block 18. At least one stator positioning hole 22 is provided on the support platform 20, and the stator positioning column 21 and the stator positioning hole 22 are arranged one by one; in step S9, when the stator frame 3 with the coil 8 is assembled from the front end opening of the outer shell 1 to the cavity 19 of the outer shell 1, the stator positioning column 21 is inserted into the stator positioning hole 22, and before the stator positioning column 21 is inserted into the stator positioning hole 22, the stator positioning column 21 is first heated and hot-melted to a preset hot-melt temperature. Specifically, under the above-mentioned setting, in the process of assembling the stator frame 3 into the outer shell 1, the initial positioning is first performed by abutting the abutment block 18 with the support platform 20. In the process, the stator positioning column 21 is hot-melted and then inserted into the stator positioning hole 22. After cooling (cooling is performed by a third fan to improve cooling efficiency and thus improve production efficiency), the stator positioning column 21 is welded in the stator positioning hole 22. The structure is strong in stability, so that the stator frame 3 can be firmly installed in the outer shell 1 and is not easy to loosen.

[0054] In the embodiment of the present application, support blocks 25 are respectively provided on the other two sides of the inner wall of the cavity 19, and a protective cover insertion hole 26 is provided on the support blocks 25, and protective cover positioning columns 27 are respectively provided on the two sides of the lower end of the protective cover 2; in step S10, when the protective cover 2 is assembled to the front opening of the shell 1, the protective cover positioning columns 27 are first heated and hot-melted to a preset hot-melt temperature, and then the protective cover positioning columns 27 are inserted into the protective cover insertion holes 26 until the protective cover 2 closes the front opening of the shell 1. Specifically, under the above-mentioned setting, when the protective cover 2 is assembled to the front opening of the shell 1, the protective cover positioning columns 27 of the protective cover 2 are first hot-melted and then inserted into the protective cover insertion holes 26. After cooling (cooling by the fourth fan to improve cooling efficiency and thus improve production efficiency), the protective cover positioning columns 27 are fused in the protective cover insertion holes 26, and the structural stability is strong, so that the protective cover 2 can be firmly installed on the shell 1 and is not easy to loosen.

[0055] According to the assembly method in the embodiment of the present application, there is no need to perform screw locking operations during the assembly process, and the assembly process is quick and convenient. The screw components are omitted, and the assembly process is simplified, which is beneficial to improving production efficiency, simplifying production processes, increasing production capacity, and reducing labor costs. Furthermore, the micro motor assembled by this method does not have screw components, thereby avoiding abnormal noise caused by loose screws, and also avoiding problems with the operation of the micro motor caused by loose screws, which is beneficial to improving the service life of the micro motor.

[0056] In the embodiments of the present application, during the assembly process between the front end cover 6, the rear end cover 7, the rotating shaft 5 and the stator frame 3, and the assembly process between the stator frame 3, the protective cover 2 and the outer shell 1, the front positioning pin 16, the front positioning socket 17, the rear positioning pin 14, the rear positioning socket 15, the stator positioning pin 21, the stator positioning hole 22, the protective cover positioning pin 27 and the protective cover socket 26 can be positioned by a CCD visual detector, wherein a plurality of CCD visual detectors can be provided for adaptive configuration.

[0057] In an embodiment of the present application, the intelligent detection module includes a detection system, which includes an encoder, a first temperature sensor, a second temperature sensor, a third temperature sensor, a torque sensor, a data acquisition unit 500 and a monitoring terminal 600. The encoder, the first temperature sensor, the second temperature sensor, the third temperature sensor and the torque sensor are respectively connected to the data acquisition unit by signal; the data acquisition unit 500 is connected to the monitoring terminal 600 by signal; the encoder is installed on the output shaft of the motor; the first temperature sensor is installed at the stator winding of the motor, the second temperature sensor is installed on the inner wall of the motor housing, and the third temperature sensor is installed at the bearing of the motor; the torque sensor is installed at the output shaft of the motor; of course, the encoder, the first temperature sensor, the second temperature sensor, the third temperature sensor and the torque sensor have been installed or attached to the corresponding parts before the micro motor is assembled; the data acquisition unit is used to collect data detected by the encoder, the first temperature sensor, the second temperature sensor, the third temperature sensor and the torque sensor, and send the data to the monitoring terminal; the monitoring terminal determines whether the received data is abnormal according to preset parameters, and if there is abnormal data, sends an early warning message to the technician.

[0058] Specifically, the detection system of the embodiment of the present application can respectively collect the key parameters of the motor's speed, temperature, and torque through the encoder, the first temperature sensor, the second temperature sensor, the third temperature sensor, and the torque sensor, and send them to the data acquisition unit. The data acquisition unit automatically collects and transmits the monitoring data to the monitoring terminal to realize remote monitoring; the data collected by the monitoring terminal can be further used for data analysis, identification of motor operation modes, and evaluation of energy efficiency, providing a scientific basis for equipment tuning and fault diagnosis; through in-depth mining of historical data, the equipment operation laws can be discovered, possible problems in the future can be predicted, and predictive maintenance can be realized; the system of the embodiment of the present application enhances the comprehensive understanding of the health status of the motor, can discover potential risks at an early stage, avoid safety accidents caused by motor failures, and ensure production safety and product quality.

[0059] Of course, the detection system of the embodiment of the present application can also be provided to users for use after delivery. Users can monitor the micro motor with corresponding software at the host computer; during its use, there is no need for frequent manual on-site inspections, which greatly improves maintenance efficiency and reduces labor costs. It can monitor the working status of the motor in real time, immediately trigger the early warning mechanism, and notify personnel in time, effectively preventing failures and reducing unplanned downtime.

[0060] In the embodiment of the present application, when the data acquisition unit 500 acquires the speed data of the encoder, it saves and records the speed data and its time point, forms a speed change waveform graph over time, and sends the speed change waveform graph over time to the monitoring terminal; the monitoring terminal compares the received speed change waveform graph with the preset speed time waveform graph, and if the waveform graph conforms to the change curve, it is determined to be working normally; if the waveform graph does not conform to the change curve, it is determined to be working abnormally, and an early warning message is sent to the technician. Specifically, by long-term monitoring of the waveform graph, it is convenient to timely monitor the performance of the motor and evaluate the monitoring status.

[0061] Furthermore, when the detected waveform conforms to the change curve, the error values ​​of each peak and / or trough in the speed change waveform over time and each peak and / or trough in the preset speed time waveform are detected. If the error value is greater than 2rps for more than 5 times within 60 seconds, it is determined as an operating abnormality and an early warning message is sent to the technician.

[0062] Embodiment 2

[0063] In the second embodiment of the present application, the monitoring terminal is provided with a preset safety temperature threshold; the preset safety temperature threshold includes a first temperature threshold, a second temperature threshold and a third temperature threshold. When the data acquisition unit acquires data from the first temperature sensor, the second temperature sensor and the third temperature sensor, the acquired temperature data is saved and recorded, and sent to the monitoring terminal. When the real-time temperature value of the first temperature sensor, the real-time temperature value of the second temperature sensor and the real-time temperature value of the third temperature sensor respectively received by the monitoring terminal exceed the first temperature threshold, the second temperature threshold and the third temperature threshold respectively at the same time, it is determined to be a working abnormality, and an early warning message is sent to the technician;

[0064] When only one or two of the real-time temperature values ​​of the first temperature sensor, the second temperature sensor, and the third temperature sensor exceed the preset safety temperature threshold, data continues to be received. If one or two of the real-time temperature values ​​of the first temperature sensor, the second temperature sensor, and the third temperature sensor exceed the preset safety temperature threshold for more than 5 times within 5 minutes, it is determined as an operating abnormality and an early warning message is sent to the technician.

[0065] Embodiment 3

[0066] In the third embodiment of the present application, the monitoring terminal is provided with a preset torque threshold; when the data acquisition unit collects data from the torque sensor, it saves and records the collected torque data and sends it to the monitoring terminal. When the torque data received by the monitoring terminal exceeds the preset torque threshold for more than three times in a row, it is determined as an operating abnormality and a warning message is sent to the technician.

[0067] Embodiment 4

[0068] In the fourth embodiment of the present application, the micro-motor fault sensing system further includes an infrared thermal imaging detection unit, the infrared thermal imaging detection unit includes a first infrared thermal imager, a second infrared thermal imager and a third infrared thermal imager, and the first infrared thermal imager, the second infrared thermal imager and the third infrared thermal imager are respectively connected to the data acquisition unit by signal;

[0069] The shooting end of the first infrared thermal imager is aimed at the output shaft of the motor;

[0070] The shooting end of the second infrared thermal imager is aimed at the bearing of the motor output shaft;

[0071] The shooting end of the third infrared thermal imager is aimed at the outer surface of the motor;

[0072] The data acquisition unit sends the thermal images acquired from the first infrared thermal imager, the second infrared thermal imager and the third infrared thermal imager to the monitoring terminal respectively.

[0073] Specifically, under the above settings, the monitoring terminal can monitor and check the temperature distribution of the motor's output shaft, bearings and outer surface at any time. Even if a local overheating area is found, corresponding cooling measures can be taken to prevent failures from occurring, thereby playing a role in predictive maintenance.

[0074] In the fourth embodiment of the present application, the first infrared thermal imager, the second infrared thermal imager and the third infrared thermal imager are all provided with a mounting bracket 109, such as Figure 5As shown, the mounting bracket 109 includes a universal damping ball head bracket 101, a telescopic rod 102 and a mounting base 103, one end of the telescopic rod 102 is rotatably connected to the universal damping ball head bracket 101, wherein one end of the telescopic rod 102 and the universal damping ball head bracket 101 can be positioned and locked by screws, or the damping structure of the prior art can be used to keep the position stable, which is not repeated here; the other end of the telescopic rod 102 is rotatably connected to the mounting base 103, wherein the other end of the telescopic rod 102 and the mounting base 103 can be positioned and locked by screws, or the damping structure of the prior art can be used to keep the position stable, which is not repeated here; a plurality of mounting holes 104 are provided on the mounting base 103, and the universal damping ball head bracket 101 is movably connected to the first infrared thermal imager, the second infrared thermal imager and the third infrared thermal imager. Specifically, under the above setting, the mounting base 103 is connected and installed with an external rack or equipment platform through the mounting hole 104 in cooperation with the external bolt, so as to facilitate the installation of the first infrared thermal imager, the second infrared thermal imager and the third infrared thermal imager at different positions. At the same time, under the action of the universal damping ball head bracket 101, in cooperation with the telescopic rod 102, it can also play the role of adjusting the position of the first infrared thermal imager, the second infrared thermal imager and the third infrared thermal imager at any time, so as to facilitate the adjustment of the minimum focal length and the optimal detection distance of the first infrared thermal imager, the second infrared thermal imager and the third infrared thermal imager to obtain clear and accurate images.

[0075] In the fourth embodiment of the present application, the telescopic rod 102 includes an outer sleeve 105 and an inner sleeve 106, the outer sleeve 105 is slidably sleeved on the inner sleeve 106, the outer sleeve 105 is provided with a plurality of positioning holes 108 in a row and at equal intervals along its length direction, the inner sleeve 106 is provided with at least two positioning grooves along its length direction, a positioning assembly is provided in the positioning groove, the positioning assembly includes a spring and a positioning steel ball 107, one end of the spring is connected to the positioning groove, the other end of the spring is connected to the positioning steel ball 107, the upper end of the positioning steel ball 107 protrudes out of the positioning groove, and the positioning steel ball 107 is provided corresponding to the positioning hole 108. Specifically, under the above setting, at least two groups of positioning assemblies are provided to ensure the positioning stability and reliability between the outer sleeve 105 and the inner sleeve 106, and even if one group of positioning assemblies fails, another group of positioning assemblies still has a limiting effect.

[0076] Embodiment 5

[0077] Embodiment 5 of the present application is a micro motor produced by the production system of embodiment 1, which includes a housing 1, a protective cover 2, a stator frame 3, a rotor 4, a rotating shaft 5, a front end cover 6 and a rear end cover 7. The stator frame 3 is hollow, and a coil 8 is wound around the outer peripheral wall of the stator frame 3; the stator frame 3 is installed in the housing 1, and the front end opening of the housing 1 is equipped with a protective cover 2, and an outer center axis hole 9 is opened at the center of the protective cover 2; a front center axis hole 10 is opened at the center of the front end cover 6, and a front shaft sleeve 11 is installed in the front center axis hole 10; a rear center axis hole 12 is opened at the center of the rear end cover 7, and a rear shaft sleeve 13 is installed in the rear center axis hole 12; the rotating shaft 5 and the rotor 4 are integrally formed; one end of the rear end cover 7 close to the rear end of the stator frame 3 Rear positioning columns 14 are respectively provided on both sides of the surface, and rear positioning holes 15 are respectively provided on both sides of the inner wall at the rear end of the stator frame 3. The rear positioning columns 14 are inserted into the rear positioning holes 15, and the rear end cover 7 is used to cover the rear end opening of the stator frame 3; the rotor 4 is movably installed in the stator frame 3, and the rear end of the rotating shaft 5 is slidably inserted into the rear shaft sleeve 13; the front end cover 6 is close to the front end of the stator frame 3. Front positioning columns 16 are respectively provided on both sides of an end surface of the front end of the stator frame 3, and front positioning holes 17 are respectively provided on both sides of the inner wall at the front end of the stator frame 3. The front positioning columns 16 are inserted into the front positioning holes 17, and the front end cover 6 is used to cover the front end opening of the stator frame 3; the front end of the rotating shaft 5 is slidably inserted into the front shaft sleeve 11 and the outer center axis hole 9. Specifically, when assembling the micro motor produced by the production system, the rear end cover 7 is inserted into the rear positioning hole 15 through the rear positioning pin 14, and the rear end cover 7 covers the rear end opening of the stator frame 3 to achieve the assembly of the rear end cover 7, and then the rotor 4 is assembled in the stator frame 3, the rear end of the rotating shaft 5 is slidably inserted into the rear shaft sleeve 13, and then the front end cover 6 is assembled to the front end opening of the stator frame 3, the front end of the rotating shaft 5 is slidably inserted into the front shaft sleeve 11, and the front end cover 6 is used to cover the front end opening of the stator frame 3; then the stator frame 3 is assembled in the housing 1 , and then assemble the protective cover 2 on the front end opening of the shell 1; the front end of the rotating shaft 5 is slidably penetrated into the outer middle axis; the embodiment of the present application does not require the operation of locking screws, the assembly process is quick and convenient, the screw components are omitted, the assembly process is simplified, the structure is simple, and it is beneficial to improve production efficiency, simplify production processes, increase production capacity, and reduce labor costs; further, the micro motor of the present application does not have a screw component, which avoids abnormal noise caused by loose screws, and also avoids problems with the micro motor caused by loose screws, which is beneficial to improving the service life of the micro motor.

[0078] In the embodiment of the present application, abutment blocks 18 are extended on both sides of the stator frame 3, a cavity 19 is provided on the shell 1, and support platforms 20 are provided on both sides of the inner wall of the cavity 19. The abutment blocks 18 are located above the support platforms 20, and at least one stator positioning column 21 is provided at the lower end of the abutment blocks 18. At least one stator positioning hole 22 is provided on the support platform 20, and the stator positioning column 21 is arranged in a one-to-one correspondence with the stator positioning hole 22; when the stator frame 3 with the coil 8 is assembled from the front end opening of the shell 1 to the cavity 19 of the shell 1, the stator positioning column 21 is inserted into the stator positioning hole 22; the upper end surface of the support platform 20 and the lower end surface of the abutment block 18 are matched and abutted horizontally. Specifically, under the above setting, the abutment block 18 abuts against the upper end surface of the support platform 20, and the stator positioning column 21 is inserted into the stator positioning hole 22, so as to realize the precise installation of the stator frame 3.

[0079] In the embodiment of the present application, end cap supports 23 are respectively provided on both sides of the inner wall of the stator frame 3, a rear end installation groove is formed between the rear end of the end cap support 23 and the inner wall of the stator frame 3, a rear positioning plug hole 15 is provided at the rear end of the end cap support 23, and the rear end cap 7 is installed in the rear end installation groove; a front end installation groove 24 is formed between the front end of the end cap support 23 and the inner wall of the stator frame 3, a front positioning plug hole 17 is provided at the front end of the end cap support 23, and the front end cap 6 is installed in the front end installation groove 24. Specifically, under the above arrangement, the rear end cap 7 and the front end cap 6 are accurately assembled and stored, and the rear end cap 7 and the front end cap 6 can be prevented from protruding.

[0080] In the embodiment of the present application, support blocks 25 are respectively provided on the other two sides of the inner wall of the cavity 19, and a protective cover insertion hole 26 is provided on the support block 25. Protective cover positioning columns 27 are respectively provided on the two sides of the lower end of the protective cover 2; when the protective cover 2 is assembled to the front end opening of the shell 1, the protective cover positioning columns 27 are inserted into the protective cover insertion holes 26 until the protective cover 2 closes the front end opening of the shell 1; a protective cover receiving groove 29 is formed between the front end of the support block 25 and the inner wall of the cavity 19, and the protective cover 2 is accommodated in the protective cover receiving groove 29. Specifically, under the above-mentioned setting, it is convenient to assemble the protective cover 2 in the protective cover receiving groove 29, and the protective cover 2 is prevented from protruding to the front end opening of the shell 1. Further, the protective cover positioning columns 27 are inserted into the protective cover insertion holes 26 to achieve accurate assembly of the protective cover 2.

[0081] In the embodiment of the present application, during the assembly process, when the rear end cover 7 is assembled to the rear end opening of the stator frame 3 with the coil 8, the rear positioning pins 14 that have been heated and hot-melted are inserted into the rear positioning holes 15 on both sides of the inner wall of the stator frame 3. During the assembly process, the rear positioning pins 14 that have been heated and hot-melted are inserted into the rear positioning holes 15. After cooling, the rear positioning pins 14 that have been heated and hot-melted are welded in the rear positioning holes 15, and the rear end cover 7 is stably connected to the stator frame 3 and is not easy to loosen. When the front end cover 6 is assembled to the front end opening of the stator frame 3, the front positioning pins 16 on both sides of one end face of the front end cover 6 are heated and hot-melted to a preset temperature, and then the front positioning pins 16 that have been hot-melted are inserted into the front positioning holes 17 on both sides of the inner wall of the stator frame 3. During the assembly process, the front positioning pins 16 that have been heated and hot-melted are inserted into the front positioning holes 17, after cooling, the front positioning pin 16 is heated and hot-melted and welded in the front positioning socket 17, and the front end cover 6 is stably connected to the stator frame 3 and is not easy to loosen; when the stator frame 3 is installed in the shell 1, the initial positioning is performed after the abutment block 18 and the support platform 20 are matched and abutted. During the process, the stator positioning column 21 is hot-melted and then inserted into the stator positioning hole 22. After cooling, the stator positioning column 21 is welded in the stator positioning hole 22, and the structure is strong, so that the stator frame 3 can be stably installed in the shell 1 and is not easy to loosen; when the protective cover 2 is assembled to the front end opening of the shell 1, the protective cover positioning column 27 of the protective cover 2 is first hot-melted and then inserted into the protective cover socket 26. After cooling, the protective cover positioning column 27 is welded in the protective cover socket 26. The structure is strong, so that the protective cover 2 can be stably installed on the shell 1 and is not easy to loosen.

[0082] In the embodiment of the present application, the upper end surface of the support platform 20 is horizontally abutted with the lower end surface of the abutment block 18. Specifically, under the above configuration, the contact between the support platform 20 and the abutment block 18 is smooth, the support is better, and the positioning of the stator frame 3 is more stable and accurate.

[0083] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention is disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent changes and modifications made to the above embodiments according to the technology of the present invention are within the scope of the technical solution of the present invention without departing from the content of the technical solution of the present invention.

Claims

1. A micro motor production system, characterized in that: It includes an automated assembly module, an intelligent detection module, a cooling system, and multiple transfer robots; The automated assembly module includes a first assembly station for assembling the rear axle sleeve on the rear end cover, a second assembly station for assembling the rear end cover on the rear end of the stator frame, a third assembly station for assembling the rotor inside the stator frame, a fourth assembly station for assembling the front axle sleeve on the front end cover, a fifth assembly station for assembling the front end cover on the front end of the stator frame, a sixth assembly station for assembling the stator frame in the housing, and a seventh assembly station for assembling the protective cover on the front end opening of the housing; The automated assembly module further comprises a plurality of feeding devices, which are respectively used to transmit the rear sleeve, the rear end cover, the stator frame, the rotor, the front sleeve, the front end cover, the housing and the protective cover for loading; The intelligent detection module is used to perform fault detection on the assembled micro motor; The cooling system is used to cool the micro motor during the assembly process.

2. A micro motor production system according to claim 1, characterized in that: A first hot melt station is also provided between the first assembly station and the second assembly station, and the first hot melt station is used to heat and hot melt the rear positioning pins on both sides of one end surface of the rear end cover to a preset temperature; The cooling system comprises a first cooling station, wherein the first cooling station is provided with a first fan, and the first fan is used for blowing air to cool the rear end cover and the stator frame after they are assembled.

3. A micro motor production system according to claim 1, characterized in that: A second hot melt station is provided between the fourth assembly station and the fifth assembly station, and the second hot melt station is used to heat and hot melt the front positioning pins on both sides of one end surface of the front end cover to a preset temperature; The cooling system comprises a second cooling station, and the second cooling station is provided with a second fan, and the second fan is used for blowing air to cool the front end cover and the stator frame after they are assembled.

4. A micro motor production system according to claim 1, characterized in that: A third hot-melt station is provided between the fifth assembly station and the sixth assembly station, and the third hot-melt station is used to heat and hot-melt the stator positioning columns on both sides of the outer wall of the stator frame to a preset hot-melt temperature; The cooling system comprises a third cooling station, and the third cooling station is provided with a third fan, and the third fan is used for blowing air to cool the stator frame and the shell after they are assembled.

5. The micro motor production system according to claim 1, characterized in that: A fourth hot-melt station is provided between the sixth assembly station and the seventh assembly station, and the fourth hot-melt station is used to heat and hot-melt the protective cover positioning columns on both sides of the lower end of the protective cover to a preset hot-melt temperature; The cooling system comprises a fourth cooling station, and the fourth cooling station is provided with a fourth fan, and the fourth fan is used for blowing air to cool the protective cover and the shell after they are assembled.

6. The micro-motor production system according to claim 1, characterized in that: The intelligent detection module includes a detection system, which includes an encoder, a first temperature sensor, a second temperature sensor, a third temperature sensor, a torque sensor, a data acquisition unit and a monitoring terminal. The encoder, the first temperature sensor, the second temperature sensor, the third temperature sensor and the torque sensor are respectively connected to the data acquisition unit by signal; the data acquisition unit is connected to the monitoring terminal by signal; The encoder is installed on the output shaft of the motor; the first temperature sensor is installed on the stator winding of the motor, the second temperature sensor is installed on the inner wall of the housing of the motor, and the third temperature sensor is installed on the bearing of the motor; the torque sensor is installed on the output shaft of the motor; The data acquisition unit is used to collect data detected by the encoder, the first temperature sensor, the second temperature sensor, the third temperature sensor, and the torque sensor, and send the data to the monitoring terminal; the monitoring terminal determines whether the received data is abnormal based on preset parameters, and if there is abnormal data, sends an early warning message to the technician.

7. A micro-motor production system according to claim 6, characterized in that: When the data acquisition unit acquires the speed data of the encoder, the speed data and its time point are saved and recorded, and a waveform diagram of the speed change over time is formed, and the waveform diagram of the speed change over time is sent to the monitoring terminal; The monitoring terminal compares the received speed-versus-time waveform with the preset speed-time waveform. If the waveform conforms to the change curve, it is determined to be working normally; if the waveform does not conform to the change curve, it is determined to be working abnormally and an early warning message is sent to the technician.

8. A micro motor production system according to claim 7, characterized in that: When the detected waveform conforms to the variation curve, the error values ​​between each peak and / or trough in the speed variation waveform over time and each peak and / or trough in the preset speed time waveform are detected. If the error value is greater than 2rps for more than 5 times within 60 seconds, it is determined as an operating abnormality and an early warning message is sent to the technician.

9. A micro-motor production system according to claim 6, characterized in that: The monitoring terminal is provided with a preset safety temperature threshold; the preset safety temperature threshold includes a first temperature threshold, a second temperature threshold and a third temperature threshold. When the data acquisition unit acquires data from the first temperature sensor, the second temperature sensor and the third temperature sensor, the acquired temperature data is saved and recorded, and sent to the monitoring terminal. When the real-time temperature value of the first temperature sensor, the real-time temperature value of the second temperature sensor and the real-time temperature value of the third temperature sensor respectively received by the monitoring terminal simultaneously exceed the first temperature threshold, the second temperature threshold and the third temperature threshold respectively, it is determined as a working abnormality, and an early warning message is sent to the technician; When only one or two of the real-time temperature values ​​of the first temperature sensor, the second temperature sensor, and the third temperature sensor exceed the preset safety temperature threshold, data continues to be received. If one or two of the real-time temperature values ​​of the first temperature sensor, the second temperature sensor, and the third temperature sensor exceed the preset safety temperature threshold for more than 5 times within 5 minutes, it is determined as an operating abnormality and an early warning message is sent to the technician.

10. A micro motor production system according to claim 7, characterized in that: The detection system further comprises an infrared thermal imaging detection unit, the infrared thermal imaging detection unit comprises a first infrared thermal imager, a second infrared thermal imager and a third infrared thermal imager, the first infrared thermal imager, the second infrared thermal imager and the third infrared thermal imager are respectively connected to the data acquisition unit by signal; The shooting end of the first infrared thermal imager is aimed at the output shaft of the motor; The shooting end of the second infrared thermal imager is aimed at the bearing of the motor output shaft; The shooting end of the third infrared thermal imager is aimed at the outer surface of the motor; The data acquisition unit respectively sends the thermal images acquired from the first infrared thermal imager, the second infrared thermal imager and the third infrared thermal imager to the monitoring terminal.

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