Finish machining line of new energy automobile motor and control method of finish machining line

Abstract

The invention discloses a finish machining line of a new energy automobile motor and a control method of the finish machining line. The system is characterized by comprising a controller, an iron core heating device used for heating and automatically conveying a rotor iron core, a manipulator used for transferring a rotor, a plurality of iron core casting devices used for casting the rotor iron core, and a cooling and conveying mechanism used for conveying the cast iron core and cooling the iron core. Through the arrangement of the device, the rotor iron core in a new energy automobile motor is automatically produced, centrifugal casting, inner diameter finish machining and detection, outer diameter finish machining and detection, assembly between a shaft and the iron core, dynamic balance correction and cleaning and oiling work after machining are completed are automatically completed, and the automatic production line of iron core finish machining is achieved; the automation degree and the production efficiency are high.

Description

Technical Field

[0001] This invention relates to motor manufacturing, specifically to a precision machining line for a new energy vehicle motor and its control method. Background Technology

[0002] With the rapid development of the new energy vehicle industry, drive motors, as core components, have been subject to higher requirements in terms of performance, reliability, and production efficiency. The rotor, as a key component of the motor, directly affects the motor's efficiency, noise, and service life due to its manufacturing precision, dynamic balance performance, and consistency.

[0003] Existing new energy vehicle motor rotor production lines mostly adopt a decentralized, multi-process independent operation mode, with manual handling and coordination between processes, resulting in problems such as low production efficiency, high labor intensity, and difficulty in ensuring product quality consistency. Especially in the stages of cooling, machining, inspection, assembly, and dynamic balancing correction after rotor core casting, multiple loading and unloading, positioning, and transfer processes are often required, which can easily introduce errors and affect the yield. Therefore, this paper proposes a precision machining line for new energy vehicle motors and its control method. Summary of the Invention

[0004] The purpose of this invention is to solve the above problems by proposing a precision machining line for electric motors of new energy vehicles and its control method.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a precision machining line for a new energy vehicle motor, characterized by including a controller, a core heating device for heating and automatically conveying the rotor core, a robotic arm for transferring the rotor, several core casting devices for casting the rotor core, and a cooling conveying mechanism for conveying and cooling the cast core. The iron core heating equipment includes a heating furnace and a conveyor placed inside the heating furnace for placing the iron core and moving the iron core. The cooling conveying mechanism includes a cooling box, a conveyor placed inside the cooling box for placing the iron core and driving the iron core to move, and several fans installed on the cooling box.

[0006] Further preferably, the device also includes a post-processing device for post-processing the cast iron core, a laser marking machine for laser marking the rotor iron core, a tailing turning device for turning the tail material of the rotor iron core, a machine tool for turning the end ring of one end of the rotor iron core, an air cleaner for air-blowing and cleaning the rotor iron core, and a robot for transferring the iron core.

[0007] More preferably, the post-processing device includes a frame, a turntable mounted on the frame, a driver mounted on the frame for rotating the turntable, a core base mounted on the turntable for limiting the position of the core, a core removal mechanism for removing the core plug, and a reamer for reaming the inner hole of the core.

[0008] Further preferred embodiments include a transfer station for temporarily storing the iron core, a laser engraving machine for performing secondary laser engraving on the iron core, an air cleaner for blowing and brushing the iron core with air, a machine tool for processing the end ring at the other end of the iron core, and an inner diameter detector for detecting the inner diameter of the iron core.

[0009] Further preferably, it also includes a rotor core heating mechanism for heating the rotor, a liquid nitrogen cooler for cooling the shaft, a shaft pressing machine for pressing the cooled shaft into the heated rotor core, and a cooling conveying mechanism for conveying and cooling the rotor after shaft assembly. The rotor core heating mechanism includes a heating frame, a heating turntable mounted on the heating frame, a driver for rotating the heating turntable, a material platform mounted on the heating turntable for positioning and placing the core, a lifter mounted on the heating frame for lifting the material platform and the core, and a heater mounted on the heating frame for heating the core.

[0010] Further preferably, the device also includes a height detector for detecting the rotor height, a machine tool for finishing the outer diameter of the rotor, an outer diameter detector for detecting the outer diameter of the rotor, a detection and marking machine for visual inspection and marking of the rotor, a rotor conveying robot for conveying and transferring the rotor, and a dynamic balancing correction machine for correcting the dynamic balance of the rotor.

[0011] Further preferably, it also includes an output device for outputting the processed rotor, the output device comprising a conveyor housing, a conveyor chain disposed within the conveyor housing, a conveyor driver disposed within the conveyor housing for driving the conveyor chain to move the rotor on the conveyor chain, a washing section disposed on the conveyor housing for washing the rotor, an air blowing section for blowing air onto the rotor, a heating section for heating and drying the rotor, and a cooling section for cooling the rotor. The washing section is equipped with a water spray pipe connected to a water source and a water collection tank for collecting the washing water. Several nozzles are installed on the water spray pipe. The blowing section is connected to an adsorption dryer via pipelines, the adsorption dryer is connected to a refrigerated dryer, the refrigerated dryer is connected to an air storage tank, and the air storage tank is connected to an air compressor. An electric heater and a hot air blower connected to the electric heater are installed in the heating section to blow hot air toward the rotor. The cooling section is equipped with a cold air blower to cool and dissipate heat from the rotor.

[0012] Further preferably, it also includes a robotic arm for transferring the rotor and a rotor oil injector for spraying oil onto the rotor.

[0013] A control method for a precision machining line of a new energy vehicle motor, characterized in that the control method is as follows: a. Place the iron core on the conveyor of the iron core heating equipment. The controller controls the conveyor to move the iron core to the loading position. At the same time, the heating furnace is started to heat the iron core to the set temperature during the movement of the iron core. b. The controller controls the robotic arm to grab the iron core at the feeding position and transport it to the iron core casting equipment for centrifugal casting; c. The centrifugally cast iron core is removed by a robotic arm and placed into a cooling and conveying mechanism; d. The iron core is output through the conveyor on the cooling conveyor mechanism, and at the same time, the iron core is cooled by air blowing through the fan on the cooling box; e. The controller controls the robot to grab the iron core output from the supercooled conveyor to the set position and place it on the post-processing device; f. The controller controls the post-processing device to complete the removal of plugs and the boring of holes in the iron core. Then the robot grabs the iron core and transports it to the air cleaner to blow clean the iron core. g. The iron core that has been cleaned by blowing air is then moved to a laser engraving machine for the first laser engraving, and then moved to a tailing turning machine to cut the tailings on the iron core; h. The robot moves the iron core that has been finished by tailing into the machine tool to perform turning on the end ring at one end of the iron core; i. The processed iron core is placed onto the transfer platform by a robot; j. Then control another robot to grab the iron core on the transfer platform and move it to another air cleaner to blow the iron core with air. k. Then move the iron core to the laser engraving machine two to perform a second laser engraving on the iron core. After the second laser engraving is completed, move the iron core to another machine tool to process the other end ring of the iron core. After processing, move it to the inner diameter detector to detect the inner diameter of the iron core end ring and control the CNC system in the machine tool to automatically adjust the tool compensation according to the detection result. 1. The iron core that has completed the inner diameter test is transported to the transfer platform. Then, the robot in the next process grabs the iron core and moves it to the rotor iron core heating mechanism to heat the iron core to the set temperature. Then, the heated iron core is moved to the shaft pressing machine. Then, the shaft that has been cooled by the liquid nitrogen cooler is grabbed and placed on the iron core. Then, the shaft pressing machine is controlled to lower the shaft and press it into the iron core to complete the assembly into a rotor. m. The robot places the assembled rotor onto the cooling conveyor and outputs it through the cooling conveyor, while simultaneously cooling the rotor; n. After the control rotor conveying robot grabs the rotor, it moves it to the height detector to detect the rotor height. The controller adjusts the stroke of the shaft press-in machine according to the detection result. o. The rotor conveyor robot moves the rotor that has completed the height detection to the machine tool three to perform precision machining on the outer diameter of the rotor. After completion, the rotor is moved to the outer diameter detector to detect the outer diameter. The controller controls the CNC system to automatically adjust the tool compensation according to the detection result. p. After the outer diameter is measured, the rotor is moved to the dynamic balancing machine to check and correct the rotor's dynamic balance; q. The controller then controls the rotor conveying robot to grab the rotor and move it to the output device. The rotor is then output through the output device. During the output process, the output device washes, blows air, dries, and cools the rotor until it moves to the unloading point. r. The controller then controls the robotic arm to grab the rotor at the unloading point and move it to the rotor oil spraying point for oil spraying. After the oil spraying is completed, the rotor is moved to the material frame or finished product storage area for storage.

[0014] The beneficial effects of this invention are as follows: By setting up this device, the production of rotor cores in new energy vehicle motors is completed automatically, including centrifugal casting, precision machining and inspection of the inner diameter and outer diameter, assembly between the shaft and the core, dynamic balance correction, and cleaning and oiling after machining. This realizes an automated production line for core precision machining with a high degree of automation and high production efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a partial structural schematic diagram of the present invention; Figure 3 This is a partial structural schematic diagram of the present invention.

[0016] Legend: 1. Core heating equipment; 2. Robotic arm; 3. Core casting equipment; 4. Cooling conveying mechanism; 5. Post-processing device; 6. Laser engraving machine one; 7. Tail material turning equipment; 8. Machine tool; 9. Air cleaner; 10. Robot; 11. Turntable; 12. Laser engraving machine two; 13. Inner diameter detector; 14. Rotor core heating mechanism; 15. Liquid nitrogen cooler; 16. Shaft pressing machine; 17. Cooling conveying mechanism; 18. Height detector; 19. Machine tool three; 20. Outer diameter detector; 21. Inspection engraving machine; 22. Rotor conveying robot; 23. Dynamic balancing and dressing machine; 24. Output device; 241. Water washing section; 242. Air blowing section; 243. Heating section; 244. Cooling section; 25. Rotor oil sprayer. Detailed Implementation

[0017] The following description, in conjunction with the accompanying drawings, further illustrates the precision machining line and control method for a new energy vehicle motor according to the present invention.

[0018] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indication will also change accordingly.

[0019] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly; for example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can also mean a mechanical connection, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0020] See Figures 1-3 As shown, a precision machining line for a new energy vehicle motor is characterized by including a controller, a core heating device 1 for heating and automatically conveying the rotor core, a robotic arm 2 for transferring the rotor, several core casting devices 3 for casting the rotor core, and a cooling conveying mechanism 4 for conveying and cooling the cast core. The iron core heating device 1 includes a heating furnace and a conveyor placed inside the heating furnace for placing the iron core and driving the iron core to move; the conveyor includes a conveyor chain, an iron core seat placed on the conveyor chain, and a motor for driving the conveyor chain to move. The cooling conveying mechanism 4 includes a cooling box, a conveyor placed inside the cooling box for placing the iron core and for conveying the iron core, and several fans installed on the cooling box. The conveyor includes a conveyor chain, an iron core seat placed on the conveyor chain, and a motor for driving the conveyor chain to move. The iron core is positioned on the iron core seat and moves with the conveyor chain. This device automatically produces the rotor core for new energy vehicle motors, including centrifugal casting, precision machining and inspection of the inner and outer diameters, assembly of the shaft and core, dynamic balancing correction, and cleaning and oiling after machining. It achieves an automated production line for core precision machining with a high degree of automation and high production efficiency.

[0021] In one embodiment, it further includes a post-processing device 5 for post-processing the cast iron core, a laser marking machine 6 for laser marking the rotor iron core, a tailing turning device 7 for turning the tail material of the rotor iron core, a machine tool for turning the end ring of one end of the rotor iron core, an air cleaner 9 for air blowing and cleaning the rotor iron core, and a robot 10 for transferring the iron core. Machine tool 8 is a CNC machine tool. During subsequent inner diameter inspection, the CNC system automatically adjusts the tool compensation based on the inspection results to ensure the accuracy of the machining dimensions. The air cleaner 9 removes dust or impurities remaining on the iron core.

[0022] In one embodiment, the post-processing device 5 includes a frame, a turntable mounted on the frame, a driver mounted on the frame for rotating the turntable, a core base mounted on the turntable for defining the position of the core, a core removal mechanism for removing the core plug, and a core reamer for reaming the inner hole of the core. The iron core is positioned on the iron core base and changes position as the turntable rotates. When it is in the plug removal mechanism, the plug on the iron core is removed by the plug removal mechanism. When it is in the reaming position, the iron core is reamed by the reamer.

[0023] In one embodiment, it also includes a transfer station 11 for temporarily storing the iron core, a laser engraving machine 2 12 for performing secondary laser engraving on the iron core, an air cleaner 9 for blowing the iron core with air, a machine tool 8 for processing the end ring at the other end of the iron core, and an inner diameter detector 13 for detecting the inner diameter of the iron core. The transfer station 11 is used to temporarily store the iron core and serves as a transfer and temporary storage. The air cleaner 9 is used to remove dust or impurities remaining on the iron core to avoid affecting subsequent laser engraving.

[0024] In one embodiment, the rotor core heating mechanism 14 is further included for heating the rotor, liquid nitrogen cooler 15 is used for cooling the shaft, shaft pressing machine 16 is used for pressing the cooled shaft into the heated rotor core, and cooling conveying mechanism 4 is used for conveying and cooling the rotor after shaft assembly. The rotor core heating mechanism 14 includes a heating frame, a heating turntable mounted on the heating frame, a driver for rotating the heating turntable, a material platform mounted on the heating turntable for positioning and placing the core, a lifter mounted on the heating frame for lifting the material platform and the core, and a heater mounted on the heating frame for heating the core. The drive can be a motor or a rotary cylinder; the lifter can be a servo drive mechanism or a cylinder; the heater can be an electric heating coil. When the iron core is heated, it is placed on the material platform of the heating turntable. When the driver drives the heating turntable to rotate, it drives the iron core to rotate. When the iron core is in the heating position, the control lift moves the material platform and the iron core upward to the heater and then heats them through the heater. The shaft is cooled by a liquid nitrogen cooler 15, and the cooled shaft is pressed into the heated iron core by a shaft presser 16 to complete the assembly of the iron core and the shaft.

[0025] In one embodiment, the system further includes a height detector 18 for detecting rotor height, a machine tool 19 for finishing the outer diameter of the rotor, an outer diameter detector 20 for detecting the outer diameter of the rotor, an inspection and marking machine 21 for visual inspection and marking of the rotor, a rotor conveying robot 22 for conveying and transferring the rotor, and a dynamic balancing correction machine for correcting the dynamic balance of the rotor; the machine tool 19 is a CNC machine tool 8. The height of the rotor is detected by the height detector 18 and the detection result is sent to the controller. The controller determines whether the rotor is qualified based on the feedback result, and controls the pressing stroke of the shaft presser 16 based on the feedback result, thereby adjusting the height dimension. The outer diameter detector 20 is used to detect the outer diameter of the rotor. The detection result is fed back to the controller, which then controls the CNC system to automatically adjust the tool compensation according to the result, so as to ensure the accuracy of subsequent machining dimensions.

[0026] In one embodiment, the device further includes an output device 24 for outputting the processed rotor. The output device 24 includes a conveyor housing, a conveyor chain disposed within the conveyor housing, a conveyor driver disposed within the conveyor housing for driving the conveyor chain to move the rotor on the conveyor chain, a washing section 241 disposed on the conveyor housing for washing the rotor, an air blowing section 242 for blowing air onto the rotor, a heating section 243 for heating and drying the rotor, and a cooling section 244 for cooling the rotor. The conveyor driver is a motor, which drives a sprocket to rotate, and the sprocket drives the conveyor chain to move, thereby driving the rotor to be conveyed. The washing section 241 is equipped with a water spray pipe connected to the water source and a water collection tank for collecting the washing water. Several nozzles are installed on the water spray pipe. During washing, the rotor can be rinsed by spraying with the nozzles to avoid residual dust or other impurities. The blowing section 242 is connected to an adsorption dryer via pipelines, the adsorption dryer is connected to a refrigerated dryer, the refrigerated dryer is connected to an air storage tank, and the air storage tank is connected to an air compressor. The blowing section 242 is designed to blow off any water remaining on the rotor. An electric heater and a hot air blower connected to the electric heater are installed at the heating section 243 to blow hot air onto the rotor; the heating section 243 is used to dry the rotor and prevent moisture residue from causing rust. A cold air blower is installed at cooling section 244 to cool and dissipate heat from the rotor; the rotor is cooled and dissipated after drying by the setting of cooling section 244.

[0027] In one embodiment, the system also includes a robotic arm 2 for transferring the rotor and a rotor oil sprayer 25 for spraying oil onto the rotor. The rotor oil sprayer 25 sprays oil onto the rotor to prevent it from rusting.

[0028] When using this invention: the iron core is placed on the conveyor of the iron core heating device 1, the controller controls the conveyor to move the iron core to the loading position, and at the same time controls the heating furnace to start and heat the iron core to the set temperature during the movement of the iron core; The controller controls the robotic arm 2 to grab the iron core at the loading position and then transport it to several iron core casting equipment 3 for centrifugal casting. After the iron core has been centrifugally cast, it is removed by the robotic arm 2 and placed in the cooling conveyor mechanism 4. The iron core is output through the conveyor on the cooling conveyor mechanism 4, and at the same time, the iron core is cooled by air blowing through the fan on the cooling box. The controller controls the robot 10 to grab the iron core output from the supercooled conveyor 4 to the set position and place it on the post-processing device 5; The controller controls the post-processing device 5 to complete the removal of plugs and the boring of holes on the iron core. Then the robot 10 grabs the iron core and transports it to the air cleaner 9 to blow clean the iron core. The iron core that has been cleaned by blowing air is then moved to the laser engraving machine at position 6 for the first laser engraving, and then moved to the tail material turning equipment 7 to cut the tail material on the iron core. Robot 10 moves the iron core that has been finished by tailing to machine tool 8 and performs turning on the end ring at one end of the iron core. The processed iron core is placed onto the transfer table 11 by robot 10; Then, another robot 10 is controlled to grab the iron core on the transfer platform 11 and move it to another air cleaner 9 to clean the iron core by air blowing. Then the iron core is moved to laser engraving machine 12 for a second laser engraving. After the second laser engraving is completed, the iron core is moved to another machine tool 8 to process the end ring at the other end of the iron core. After processing, it is moved to the inner diameter detector 13 to detect the inner diameter of the end ring of the iron core. The controller determines whether the rotor is qualified according to the detection result. If it is qualified, it continues. If it is unqualified, it is marked or placed directly in the unqualified product placement area. At the same time, the controller controls the CNC system in the machine tool 8 to automatically adjust the tool compensation according to the detection result. If the detection fails continuously, the machine is stopped and waits for the staff to carry out maintenance. The iron core that has completed the inner diameter test is transported to the transfer table 11. Then, the robot 10 in the next process picks up the iron core and moves it to the rotor iron core heating mechanism 14. When the iron core is heated, it is placed on the material platform of the heating turntable. When the driver drives the heating turntable to rotate, it drives the iron core to rotate. When the iron core is in the heating position, the control lift moves the material platform and the iron core upward to the heater and then heats it through the heater. The iron core is heated to a set temperature, and then the heated iron core is moved into the shaft pressing machine 16. The shaft that has been cooled by the liquid nitrogen cooler 15 is then picked up and placed on the iron core. The shaft pressing machine 16 is then controlled to lower the shaft and press it into the iron core to complete the assembly into a rotor. Robot 10 places the assembled rotor onto the cooling conveyor 4 and outputs it through the cooling conveyor 4. At the same time, the rotor is cooled by the cold air blown out by the fan. After the control rotor conveying robot 22 grabs the rotor, it moves it to the height detector 18 to detect the rotor height. The controller determines whether the rotor is qualified based on the detection result. If it is qualified, it continues. If it is unqualified, it is marked or placed directly in the unqualified product placement area. At the same time, the controller controls the movement stroke of the adjusting shaft press 16 to adjust the rotor height. If the detection fails continuously, the machine is stopped and waits for the staff to carry out maintenance. The rotor conveyor 22 moves the rotor that has completed the height detection to the machine tool 3 19 for precision machining of the rotor's outer diameter. After completion, the rotor is moved to the outer diameter detector 20 for outer diameter detection. The controller determines whether the rotor is qualified based on the detection result. If it is qualified, the process continues. If it is unqualified, it is marked or placed directly in the unqualified product placement area. At the same time, the controller controls the CNC system in the machine tool 8 to automatically adjust the tool compensation based on the detection result. If the detection fails continuously, the machine is stopped and waits for the staff to carry out maintenance. After the outer diameter is measured, the rotor is moved to position 21 of the inspection and engraving machine for visual inspection and a third laser engraving. Then it is moved to the dynamic balancing machine 23 to check and correct the rotor's dynamic balance; The controller then controls the rotor conveying robot 22 to grab the rotor and move it to the output device 24, where it is output. During the output process, the output device 24 washes, blows air, dries, and cools the rotor until it moves to the unloading point. The controller then controls the robotic arm 2 to grab the rotor at the unloading point and move it to the rotor oil spraying point for oil spraying to prevent the rotor from rusting. After the oil spraying is completed, the rotor is moved to the material frame or finished product storage area for storage.

[0029] The scope of protection of this invention is not limited to the above embodiments and their variations. Conventional modifications and substitutions made by those skilled in the art based on the content of these embodiments are all within the scope of protection of this invention.

Claims

1. A precision machining line for electric motors in new energy vehicles, characterized in that: It includes a controller, a core heating device (1) for heating and automatically conveying the rotor core, a robotic arm (2) for transferring the rotor, several core casting devices (3) for casting the rotor core, and a cooling conveying mechanism (4) for conveying and cooling the cast core. Iron core heating equipment (1) includes a heating furnace and a conveyor placed inside the heating furnace for placing the iron core and for conveying the iron core; The cooling conveying mechanism (4) includes a cooling box, a conveyor placed inside the cooling box for placing the iron core and for conveying the iron core, and several fans installed on the cooling box.

2. The precision machining line for a new energy vehicle motor according to claim 1, characterized in that: It also includes a post-processing device (5) for post-processing the cast iron core, a laser marking machine (6) for laser marking the rotor iron core, a tailing turning device (7) for turning the tail material of the rotor iron core, a machine tool (8) for turning the end ring of the rotor iron core, an air cleaner (9) for air blowing and cleaning the rotor iron core, and a robot (10) for transferring the iron core.

3. The precision machining line for a new energy vehicle motor according to claim 2, characterized in that: The post-processing device (5) includes a frame, a turntable mounted on the frame, a driver mounted on the frame for rotating the turntable, a core base mounted on the turntable for limiting the position of the core, a core removal mechanism for removing the core plug, and a core reamer for reaming the core inner hole.

4. The precision machining line for a new energy vehicle motor according to claim 2, characterized in that: It also includes a transfer station (11) for temporarily storing the iron core, a laser engraving machine II (12) for performing secondary laser engraving on the iron core, an air cleaner (9) for blowing the iron core with air, a machine tool (8) for processing the end ring at the other end of the iron core, and an inner diameter detector (13) for detecting the inner diameter of the iron core.

5. The precision machining line for a new energy vehicle motor according to claim 4, characterized in that: It also includes a rotor core heating mechanism (14) for heating the rotor, a liquid nitrogen cooler (15) for cooling the shaft, a shaft presser (16) for pressing the cooled shaft into the heated rotor core, and a cooling conveying mechanism (4) for conveying and cooling the rotor after shaft assembly. The rotor core heating mechanism (14) includes a heating frame, a heating turntable mounted on the heating frame, a driver for rotating the heating turntable, a material platform mounted on the heating turntable for positioning and placing the core, a lifter mounted on the heating frame for lifting the material platform and the core, and a heater mounted on the heating frame for heating the core.

6. The precision machining line for a new energy vehicle motor according to claim 5, characterized in that: It also includes a height detector (18) for detecting rotor height, a machine tool (19) for finishing the outer diameter of rotor, an outer diameter detector (20) for detecting rotor outer diameter, a detection and marking machine (21) for visual inspection and marking of rotor, a rotor conveying robot (22) for conveying and transferring rotor, and a dynamic balancing correction machine for correcting rotor dynamic balance.

7. The precision machining line for a new energy vehicle motor according to claim 6, characterized in that: It also includes an output device (24) for outputting the processed rotor. The output device (24) includes a conveyor box, a conveyor chain disposed in the conveyor box, a conveyor driver disposed in the conveyor box for driving the conveyor chain to move the rotor on the conveyor chain, a water washing section (241) disposed in the conveyor box for washing the rotor, an air blowing section (242) for blowing air on the rotor, a heating section (243) for heating and drying the rotor, and a cooling section (244) for cooling the rotor. The water washing section (241) is equipped with a water spray pipe connected to the water source and a water collection tank for collecting the washing water. Several nozzles are installed on the water spray pipe. The blowing section (242) is connected to an adsorption dryer via a pipeline. The adsorption dryer is connected to a refrigerated dryer. The refrigerated dryer is connected to an air storage tank. The air storage tank is connected to an air compressor. An electric heater and a hot air blower connected to the electric heater are provided at the heating section (243) to blow hot air toward the rotor; A cooler is installed at the cooling section (244) to cool and dissipate heat from the rotor by blowing air.

8. The precision machining line for a new energy vehicle motor according to claim 7, characterized in that: It also includes a robotic arm (2) for transferring the rotor and a rotor oil sprayer (25) for spraying oil onto the rotor.

9. A control method for a precision machining line of a new energy vehicle motor according to any one of claims 1-8, characterized in that: The control method is as follows: a. Place the iron core on the conveyor of the iron core heating equipment. The controller controls the conveyor to move the iron core to the loading position. At the same time, the heating furnace is started to heat the iron core to the set temperature during the movement of the iron core. b. The controller controls the robotic arm to grab the iron core at the feeding position and transport it to the iron core casting equipment for centrifugal casting; c. The centrifugally cast iron core is removed by a robotic arm and placed into a cooling and conveying mechanism; d. The iron core is output through the conveyor on the cooling conveyor mechanism, and at the same time, the iron core is cooled by air blowing through the fan on the cooling box; e. The controller controls the robot to grab the iron core output from the supercooled conveyor to the set position and place it on the post-processing device; f. The controller controls the post-processing device to complete the removal of plugs and the boring of holes in the iron core. Then the robot grabs the iron core and transports it to the air cleaner to blow clean the iron core. g. The iron core that has been cleaned by blowing air is then moved to a laser engraving machine for the first laser engraving, and then moved to a tailing turning machine to cut the tailings on the iron core; h. The robot moves the iron core that has been finished by tailing into the machine tool to perform turning on the end ring at one end of the iron core; i. The processed iron core is placed onto the transfer platform by a robot; j. Then control another robot to grab the iron core on the transfer platform and move it to another air cleaner to blow the iron core with air. k. Then move the iron core to the laser engraving machine two to perform a second laser engraving on the iron core. After the second laser engraving is completed, move the iron core to another machine tool to process the other end ring of the iron core. After processing, move it to the inner diameter detector to detect the inner diameter of the iron core end ring and control the CNC system in the machine tool to automatically adjust the tool compensation according to the detection result.

1. The iron core that has completed the inner diameter test is transported to the transfer platform. Then, the robot in the next process grabs the iron core and moves it to the rotor iron core heating mechanism to heat the iron core to the set temperature. Then, the heated iron core is moved to the shaft pressing machine. Then, the shaft that has been cooled by the liquid nitrogen cooler is grabbed and placed on the iron core. Then, the shaft pressing machine is controlled to lower the shaft and press it into the iron core to complete the assembly into a rotor. m. The robot places the assembled rotor onto the cooling conveyor and outputs it through the cooling conveyor, while simultaneously cooling the rotor; n. After the control rotor conveying robot grabs the rotor, it moves it to the height detector to detect the rotor height. The controller adjusts the stroke of the shaft press-in machine according to the detection result. o. The rotor conveyor robot moves the rotor that has completed the height detection to the machine tool three to perform precision machining on the outer diameter of the rotor. After completion, the rotor is moved to the outer diameter detector to detect the outer diameter. The controller controls the CNC system to automatically adjust the tool compensation according to the detection result. p. After the outer diameter is measured, the rotor is moved to the dynamic balancing machine to check and correct the rotor's dynamic balance; q. The controller then controls the rotor conveying robot to grab the rotor and move it to the output device. The rotor is then output through the output device. During the output process, the output device washes, blows air, dries, and cools the rotor until it moves to the unloading point. r. The controller then controls the robotic arm to grab the rotor at the unloading point and move it to the rotor oil spraying point for oil spraying. After the oil spraying is completed, the rotor is moved to the material frame or finished product storage area for storage.

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