Rotor processing equipment for brushless motor

Abstract

The invention discloses rotor machining equipment for a brushless motor, and relates to the technical field of motor rotor machining, the rotor machining equipment for the brushless motor comprises a workbench, a polishing rod, an adsorption rod and a detection block, a second electric push rod drives the detection block and a positioning block located on the outer ring to move inwards at the same time, and the outer surface of a motor rotor is positioned; meanwhile, a second electric push rod is started to drive a detection block located on the inner ring of the motor rotor to move outwards to position the inner ring of the motor rotor, it is ensured that the machining precision of each time is the same, after a second electromagnetic block is powered off, adsorption positioning of the second electromagnetic block is stopped, and a detection rod is always kept in contact with the surface of the motor rotor through the elastic force of a spring; the contact pressure change is monitored in real time through the pressure sensor, when the surface of the rotor is sunken, the pressure of the pressure sensor is reduced, when the surface of the rotor is protruded, the pressure of the pressure sensor is increased, the surface flatness and roughness are analyzed through the pressure value change of the pressure sensor, and a subsequent fixed-point polishing correction program is triggered.

Description

Technical Field

[0001] The present invention relates to the technical field of motor rotor processing, and more specifically, to a rotor processing device for a brushless motor. Background Art

[0002] The rotor of a brushless motor is one of the important components of the motor. Compared with the stator, it is mainly responsible for generating rotational motion when the motor is running. The rotor processing equipment of a brushless motor is a device specially used to manufacture and finish the rotor components in the motor. These devices usually integrate high-precision machinery, advanced sensing technology and intelligent control systems to ensure that the produced rotors meet strict tolerance requirements. In the processing of the brushless motor rotor, ensuring the flatness and roughness of the rotor surface is crucial to the overall performance of the motor. Therefore, grinding and polishing are important steps in the rotor processing of the brushless motor to remove some burrs or minor defects that may be generated during the manufacturing process, reduce the friction between the rotor and the bearing or other components, thereby reducing wear and extending the service life of the motor.

[0003] In actual use of the prior art, the main positions of the motor rotor that need to be polished are the journal part and the magnet mounting surface. The journal part is the part that is in direct contact with the bearing. It is very important to ensure that the surface of this part is smooth, which can reduce wear and maintain good rotational stability. The magnet mounting surface is the part that fits with the magnet. If the magnet is not perfectly fitted with it or has slight unevenness, it may affect the consistency and strength of the magnetic field. Proper polishing can better fix the magnet on the rotor and improve the efficiency of the motor. When polishing, first ensure that the rotor is firmly mounted on the workbench, then select suitable sandpaper or grinding wheel, and apply uniform force to the raised and recessed parts for polishing until the required smoothness and flatness are achieved.

[0004] In actual use of the existing technology, most equipment can only provide basic dimensional measurements when grinding motor rotors, and it is difficult to effectively identify minor defects such as depressions or protrusions on the rotor surface. After discovering surface defects, the existing equipment can usually only solve the problem through subsequent rework, and cannot immediately adjust the grinding parameters to adapt to different surface conditions, thereby reducing production efficiency. Therefore, in response to the above technical problems, it is necessary to provide a rotor processing equipment for brushless motors. Summary of the invention

[0005] The object of the present invention is to provide a rotor processing device for a brushless motor to solve the above-mentioned problems.

[0006] In order to achieve the above purpose, the technical solution provided by the embodiment of the present invention is as follows: A rotor processing equipment for a brushless motor comprises a workbench, a grinding rod, an adsorption rod and a detection block, wherein four columns are evenly fixedly connected to the upper surface of the workbench, a top plate is fixedly connected to the upper ends of the columns, two movable plates are symmetrically fixedly connected to the lower surface of the top plate, and a motor rotor is placed in the middle of the upper surface of the workbench; the grinding rod comprises an outer adjustment groove and an inner adjustment groove provided on the lower surface of the movable plate, a movable block is movably connected to the inner cavities of the outer adjustment groove and the inner adjustment groove, an adjustment frame is fixedly connected to the lower surface of the movable block, a T-slot is provided in the inner cavity of the adjustment frame, and the adjustment frame is slidably connected to a T-block through the T-slot, a second motor is fixedly connected to the lower surface of the T-block, and the two output shaft ends of the second motor are respectively fixedly connected to an outer grinding rod and an inner grinding rod , an electromagnetic block is fixedly connected to one side of the inner cavity of the adjustment frame, and a magnetic block is inlaid and fixedly connected to the inner cavity of the T-block; the adsorption rod includes a gear ring rotatably connected to the lower surface of the movable plate, and two vacuum generators are symmetrically fixedly connected to the lower surface of the gear ring, and a suction cup is installed at the lower end of the vacuum generator; the detection block includes a rectangular block movably connected to the upper surface of the workbench, and a plurality of slide grooves are evenly opened in the inner cavity of the rectangular block, and a detection rod is slidably connected in the slide groove of the rectangular block, and a pressure sensor is fixedly connected to the inner wall of the slide groove of the rectangular block, and a spring is fixedly connected between the detection rod and the pressure sensor, and a cold air cavity and an ink cavity are symmetrically opened in the inner cavity of the detection rod, and a cold air pipe and an ink pipe are respectively fixedly connected to the outer surface of the detection rod, and a valve is installed on the ink pipe.

[0007] As a further improvement of the present invention, four supporting legs are evenly and fixedly connected to the lower surface of the workbench, and anti-slip pads are fixedly connected to the lower surfaces of the supporting legs.

[0008] As a further improvement of the present invention, the side walls of the inner cavity of the outer adjustment groove and the inner adjustment groove are fixedly connected to a motor 1, the output shaft end of the motor 1 is fixedly connected to a screw, the other ends of the two screws are respectively rotatably connected to the side walls of the inner cavity of the outer adjustment groove and the inner adjustment groove, and the inner cavity of the moving block is threadedly connected to the outer surface of the screw.

[0009] As a further improvement of the present invention, a spring damper is fixedly connected to one side of the T-block, and the other end of the spring damper is fixedly connected to the side wall of the inner cavity of the adjustment frame.

[0010] As a further improvement of the present invention, the outer surface of the outer grinding rod abuts against the outer surface of the motor rotor, and the outer surface of the inner grinding rod abuts against the inner wall of the motor rotor.

[0011] As a further improvement of the present invention, the inner cavity of the lower surface of the movable plate is fixedly connected to a motor three, the output shaft end of the motor three is fixedly connected to a gear, the gear is meshingly connected to the ring gear, and the lower surface of the suction cup abuts against the upper surface of the motor rotor.

[0012] As a further improvement of the present invention, the cold air pipe is connected to the cold air cavity, the ink tube is connected to the ink cavity, one end of the ink tube is connected to an ink hose, and one end of the cold air pipe is connected to a cold air hose.

[0013] As a further improvement of the present invention, a second electromagnetic block is embedded and fixed on the top of the slide groove of the rectangular block, and a second magnetic block is embedded and fixed on the outer surface of the detection rod at a position corresponding to the second electromagnetic block.

[0014] As a further improvement of the present invention, the upper surface of the workbench is respectively movably connected with a positioning block and a detection block, the positioning block and the detection block are symmetrically arranged on the outer surface of the motor rotor, and the inner cavity of the motor rotor is also provided with a detection block, one side of the positioning block and the detection block is fixedly connected to an electric push rod 2, the other end of the electric push rod 2 is fixedly connected to a side plate, and the lower surface of the side plate is fixedly connected to the upper surface of the workbench.

[0015] As a further improvement of the present invention, an external laser scanner and an internal laser scanner are fixedly connected to the upper surface of the workbench, respectively. The external laser scanner is located on one side of the outer grinding rod and its lens faces the outer surface of the motor rotor, and the internal laser scanner is located on one side of the inner grinding rod and its lens faces the inner wall of the motor rotor.

[0016] Compared with the prior art, the advantages of the present invention are: (1) This solution starts the electric push rod 1 to drive the moving plate to adjust the position, so that the suction cup of the adsorption rod is aligned with the motor rotor to be processed. The vacuum generator generates negative pressure, and the motor rotor is firmly adsorbed through the suction cup. Then the motor 3 is started to drive the gear to mesh with the gear ring, driving the adsorption rod to rotate as a whole, thereby achieving uniform and slow rotation of the workpiece, which is convenient for multi-angle grinding and inspection. The grinding rod includes an outer grinding rod and an inner grinding rod, which are respectively adjusted in position through the outer adjustment groove and the inner adjustment groove. The position of the outer grinding rod and the inner grinding rod can be accurately adjusted to meet the processing requirements of rotors of different specifications; (2) This scheme uses the second electric push rod to drive the detection block and the positioning block located on the outer ring to move inward at the same time to locate the outer surface of the motor rotor. At the same time, the second electric push rod is started to drive the detection block located on the inner ring of the motor rotor to move outward to locate the inner ring of the motor rotor, ensuring that the motor rotor is located in the middle position on the workbench and the accuracy of each processing is the same. The second electromagnetic block is powered off and the adsorption and positioning of the second magnetic block is stopped. At this time, the detection rod always keeps in contact with the surface of the motor rotor through the elastic force of the spring. The contact pressure change is monitored in real time through the pressure sensor. When there is a depression on the rotor surface, the detection rod moves outward through the elastic force of the spring. At this time, the pressure of the pressure sensor decreases. When there is a bulge on the rotor surface, the detection rod is squeezed and moves inward and compresses the spring. At this time, the pressure of the pressure sensor increases. The surface flatness and roughness are analyzed through the change in the pressure value of the pressure sensor, and the subsequent fixed-point grinding correction program is triggered; (3) In this scheme, a cold air chamber is provided on the left side of the inner cavity of the detection rod, and cold air is transported to the grinding area through the cold air pipe and the cold air hose to reduce the high temperature caused by friction and prevent material annealing or deformation. At the same time, the cold air can blow away the debris attached to the surface of the rotor after grinding, ensuring that the rotor surface will not be affected by the debris when the detection rod is in contact with the detection rod, thereby ensuring the detection accuracy. An ink chamber is provided on the right side of the detection rod, which is connected to the external special ink through the ink tube and the ink hose. When the detection rod detects that there are protrusions or depressions on the rotor surface, the valve on the corresponding ink tube is controlled to open, so that the ink is sprayed on the rotor surface that rotates to the right after the detection. The inner and outer surfaces of the rotor are scanned with high precision by the external laser scanner and the internal laser scanner respectively. When ink is scanned on the rotor surface, the motor three is turned off to stop driving the rotor to rotate. By staying for a certain period of time, the defective parts of the rotor are subjected to additional separate grinding to achieve local intensive grinding, improve the grinding effect, and avoid rework afterwards. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a rear view schematic diagram of the overall structure of the present invention; Figure 3 A half-section schematic diagram of the internal structure of the present invention; Figure 4 It is a schematic diagram of the structure of the external grinding rod of the present invention; Figure 5 It is a schematic diagram of the structure of the adsorption rod of the present invention; Figure 6 It is a schematic diagram of a rectangular block structure of the present invention; Figure 7 It is a schematic diagram of the detection block structure of the present invention; Figure 8 It is a schematic cross-sectional view of the detection block structure of the present invention; Fig. 9 It is a schematic diagram of the internal structure of a half-section of the detection block of the present invention.

[0018] Description of the numbers in the figure: 1. Workbench; 101. Support leg; 102. Column; 103. Top plate; 2. Electric push rod 1; 3. Moving plate; 4. Grinding rod; 401. External grinding rod; 402. Internal grinding rod; 403. External adjustment slot; 404. Internal adjustment slot; 405. Moving block; 406. Screw; 407. Motor 1; 408. Adjustment frame; 409. T-block; 410. Electromagnetic block 1; 411. Spring damper; 412. Motor 2; 5. Adsorption rod; 501. Gear ring; 502. Vacuum generator; 503, suction cup; 504, motor three; 505, gear; 6, positioning block; 7, detection block; 701, rectangular block; 702, detection rod; 703, pressure sensor; 704, spring; 705, cold air chamber; 706, ink chamber; 707, cold air pipe; 708, cold air hose; 709, ink tube; 710, ink hose; 711, valve; 712, electromagnetic block two; 713, magnetic block two; 8, electric push rod two; 9, side panel; 10, external laser scanner; 11, internal laser scanner. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings following the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0020] Embodiment 1: See also Figure 1-Figure 4 A rotor processing device for a brushless motor comprises a workbench 1, a grinding rod 4, an adsorption rod 5 and a detection block 7. Four columns 102 are evenly fixedly connected to the upper surface of the workbench 1. A top plate 103 is fixedly connected to the upper end of the column 102. Two moving plates 3 are symmetrically fixedly connected to the lower surface of the top plate 103. A motor rotor is placed in the middle of the upper surface of the workbench 1. The grinding rod 4 comprises an outer adjustment groove 403 and an inner adjustment groove 404 provided on the lower surface of the moving plate 3. The inner cavities of the outer adjustment groove 403 and the inner adjustment groove 404 are movable. A moving block 405 is dynamically connected, and an adjusting frame 408 is fixedly connected to the lower surface of the moving block 405. A T-slot is provided in the inner cavity of the adjusting frame 408, and the adjusting frame 408 is slidably connected to a T-block 409 through the T-slot. A motor 412 is fixedly connected to the lower surface of the T-block 409, and the output shaft ends of the two motors 412 are respectively fixedly connected to an outer grinding rod 401 and an inner grinding rod 402, an electromagnetic block 410 is fixedly connected to one side of the inner cavity of the adjusting frame 408, and a magnetic block is inlaid and fixedly connected to the inner cavity of the T-block 409.

[0021] Specifically, four supporting legs 101 are evenly and fixedly connected to the lower surface of the workbench 1, and an anti-slip pad is fixedly connected to the lower surface of the supporting legs 101. The inner cavity side walls of the outer adjustment groove 403 and the inner adjustment groove 404 are fixedly connected to a motor 407, and the output shaft end of the motor 407 is fixedly connected to a screw 406, and the other ends of the two screws 406 are rotatably connected to the inner cavity side walls of the outer adjustment groove 403 and the inner adjustment groove 404 respectively. The inner cavity of the moving block 405 is threadedly connected to the outer surface of the screw 406, a spring damper 411 is fixedly connected to one side of the T-block 409, and the other end of the spring damper 411 is fixedly connected to the inner cavity side wall of the adjustment frame 408, the outer surface of the outer grinding rod 401 abuts against the outer surface of the motor rotor, and the outer surface of the inner grinding rod 402 abuts against the inner wall of the motor rotor.

[0022] Furthermore, the motor rotor to be polished is first placed on the workbench 1, and the polishing rod 4 includes an outer polishing rod 401 and an inner polishing rod 402, and the position is adjusted through the outer adjustment groove 403 and the inner adjustment groove 404 respectively. The screw 406 is driven to rotate by the motor 1 407 to push the two moving blocks 405 to move along the outer adjustment groove 403 and the inner adjustment groove 404 respectively, so as to accurately adjust the positions of the outer polishing rod 401 and the inner polishing rod 402 to meet the processing requirements of rotors of different specifications.

[0023] The outer grinding rod 401 and the inner grinding rod 402 are driven by the motor 2 412 to rotate rapidly, and respectively contact and grind with the inner and outer rings of the motor rotor that rotates at a uniform and slow speed, and perform additional separate grinding on the defective parts of the rotor. At the same time, the electromagnetic block 1 410 above the corresponding outer grinding rod 401 and the inner grinding rod 402 is controlled to emit a repulsive magnetic force, pushing the T-block 409 to move inward with the cooperation of the spring damper 411, thereby increasing the contact force between the outer grinding rod 401 and the inner grinding rod 402 and the inner and outer surfaces of the rotor, increasing the grinding pressure, achieving local enhanced grinding, improving the grinding effect, and realizing fixed-point grinding correction for the defects of the rotor. The spring damper 411 and the electromagnetic block 1 410 work together to reduce vibration during the grinding process, ensure uniform contact pressure, and further optimize the stability of the grinding path.

[0024] Embodiment 2: See also Figure 1 , Figure 2 , Figure 3 and Figure 5 A rotor processing device for a brushless motor also includes an adsorption rod 5, including a gear ring 501 rotatably connected to the lower surface of a movable plate 3, two vacuum generators 502 are symmetrically fixedly connected to the lower surface of the gear ring 501, and a suction cup 503 is installed at the lower end of the vacuum generator 502.

[0025] Specifically, the inner cavity of the lower surface of the movable plate 3 is fixedly connected with the motor 3 504, the output shaft end of the motor 3 504 is fixedly connected with the gear 505, the gear 505 is meshedly connected with the gear ring 501, and the lower surface of the suction cup 503 is in contact with the upper surface of the motor rotor.

[0026] Furthermore, the electric push rod 2 is started to drive the movable plate 3 to adjust the position so that the suction cup 503 of the adsorption rod 5 is aligned with the motor rotor to be processed, and the vacuum generator 502 generates negative pressure to firmly adsorb the motor rotor through the suction cup 503. Then, the motor 3 504 is started to drive the gear 505 to engage with the ring gear 501, driving the adsorption rod 5 to rotate as a whole, thereby realizing uniform and slow rotation of the workpiece, which is convenient for multi-angle grinding and detection.

[0027] Embodiment three: See also Figure 1 , Figure 2 , Figure 3 , Figure 6 , Figure 7 , Figure 8 and Fig. 9 A rotor processing device for a brushless motor also includes a detection block 7, including a rectangular block 701 movably connected to the upper surface of a workbench 1, a plurality of slide grooves are evenly opened in the inner cavity of the rectangular block 701, a detection rod 702 is slidably connected in the slide groove of the rectangular block 701, a pressure sensor 703 is fixedly connected to the inner wall of the slide groove of the rectangular block 701, a spring 704 is fixedly connected between the detection rod 702 and the pressure sensor 703, a cold air cavity 705 and an ink cavity 706 are symmetrically opened in the inner cavity of the detection rod 702, a cold air pipe 707 and an ink pipe 709 are respectively fixedly connected to the outer surface of the detection rod 702, and a valve 711 is installed on the ink pipe 709.

[0028] Specifically, the cold air pipe 707 is connected to the cold air chamber 705, the ink pipe 709 is connected to the ink chamber 706, one end of the ink pipe 709 is connected to the ink hose 710, and one end of the cold air pipe 707 is connected to the cold air hose 708. The top of the slide groove of the rectangular block 701 is inlaid with an electromagnetic block 712, and the outer surface of the detection rod 702 is inlaid with a magnetic block 713 at a position corresponding to the electromagnetic block 712. The upper surface of the workbench 1 is movably connected with a positioning block 6 and a detection block 7, and the positioning block 6 and the detection block 7 are symmetrically arranged outside the motor rotor. The surface of the motor rotor is also provided with a detection block 7, and one side of the positioning block 6 and the detection block 7 is fixedly connected to an electric push rod 8, and the other end of the electric push rod 8 is fixedly connected to a side plate 9, and the lower surface of the side plate 9 is fixedly connected to the upper surface of the workbench 1, and the upper surface of the workbench 1 is respectively fixedly connected to an external laser scanner 10 and an internal laser scanner 11. The external laser scanner 10 is located on one side of the external grinding rod 401 and its lens faces the outer surface of the motor rotor, and the internal laser scanner 11 is located on one side of the internal grinding rod 402 and its lens faces the inner wall of the motor rotor.

[0029] Furthermore, one detection block 7 is located on the inner ring of the motor rotor, and the other detection block 7 and the positioning block 6 are symmetrically arranged on the outer ring of the motor rotor. At this time, the electric push rod 2 8 is started to drive the detection block 7 and the positioning block 6 located on the outer ring to move inward at the same time to position the outer surface of the motor rotor. At the same time, the electric push rod 2 8 is started to drive the detection block 7 located on the inner ring of the motor rotor to move outward to position it with the inner ring of the motor rotor, ensuring that the motor rotor is located in the middle position on the workbench 1 to ensure that the accuracy of each processing is the same.

[0030] When the motor rotor rotates and is polished, it is positioned by the adsorption rod 5. At this time, the electromagnetic block 712 is powered off and the adsorption and positioning of the magnetic block 713 is stopped. At this time, the detection rod 702 loses its positioning, and the detection rod 702 always maintains contact with the surface of the motor rotor through the elastic force of the spring 704. The contact pressure change is monitored in real time by the pressure sensor 703. When there is a depression on the rotor surface, the detection rod 702 moves outward through the elastic force of the spring 704. At this time, the pressure of the pressure sensor 703 decreases. When there is a protrusion on the rotor surface, the detection rod 702 is squeezed and moves inward and compresses the spring 704. At this time, the pressure of the pressure sensor 703 increases. The surface flatness and roughness are analyzed by the change in the pressure value of the pressure sensor 703.

[0031] The pressure sensor 703 is preset with three interval values: normal interval: the preset standard pressure range, indicating that the rotor surface is flat; low pressure interval depression judgment: when the pressure value is lower than the lower limit, the system judges it as depression; high pressure interval convex judgment: when the pressure value is higher than the upper limit, the system judges it as convex. The real-time data of the pressure sensor 703 is analyzed by the control system to generate a rotor surface flatness report and trigger the subsequent fixed-point grinding correction program.

[0032] A cold air chamber 705 is provided on the left side of the inner cavity of the detection rod 702, and cold air is delivered to the grinding area through the cold air pipe 707 and the cold air hose 708 to reduce the high temperature generated by friction and prevent annealing or deformation of the material. At the same time, the cold air can blow away the debris attached to the surface of the rotor after grinding, ensuring that the rotor surface will not be affected by the debris when the contact detection with the detection rod 702 is carried out, thereby ensuring the detection accuracy and avoiding misjudgment caused by debris.

[0033] An ink cavity 706 is provided on the right side of the detection rod 702, which is connected to the external special ink through the ink tube 709 and the ink hose 710. When the detection rod 702 detects that there are protrusions or depressions on the rotor surface, the valve 711 on the corresponding ink tube 709 is controlled to open in real time, so that the ink is sprayed on the rotor surface that rotates to the right after the detection. The speed of rotor rotation is proportional to the speed of ink spraying, which can ensure that the ink is sprayed and accurately falls on the rotor surface that has just been detected, accurately marking the areas that need to be focused on, such as depressions or wear points. The ink is sprayed at a rate synchronized with the rotor speed to ensure that the mark accurately corresponds to the defect position (for example, when the rotation speed is 5 RPM, the ink spraying time is accurate to 0.1 seconds).

[0034] Then, the outer laser scanner 10 and the inner laser scanner 11 are used to perform high-precision scanning on the inner and outer surfaces of the rotor respectively. When ink is scanned on the rotor surface, the motor 3 504 is turned off to stop driving the rotor to rotate. The stopping time of the motor 3 504 is proportional to the speed of the rotor rotation, ensuring that when the rotor stops rotating, the position with the ink mark just stays at the position in contact with the outer polishing rod 401 and the inner polishing rod 402. (The outer laser scanner 10 and the inner laser scanner 11 scan the rotor surface in a non-contact manner, and the generated high-resolution 3D point cloud data has an accuracy of 0.01mm, and is compared with the preset standard model. When the ink mark is scanned, the system calculates the current rotation angle of the rotor and turns off the motor 3 504 through PID control, so that when the rotor stops, the alignment error between the mark position and the outer polishing rod 401 and the inner polishing rod 402 is ≤0.5°). By staying for a certain period of time, the defective parts of the rotor are additionally polished separately to achieve local intensive polishing, improve the polishing effect, and implement fixed-point polishing correction for the defects of the rotor to avoid rework afterwards.

[0035] Working principle: When using the device, first place the motor rotor to be polished on the workbench 1. At this time, one detection block 7 is located on the inner ring of the motor rotor, and the other detection block 7 and the positioning block 6 are symmetrically arranged on the outer ring of the motor rotor. At this time, the electric push rod 2 8 is started to drive the detection block 7 and the positioning block 6 located on the outer ring to move inward at the same time to position the outer surface of the motor rotor. At the same time, the electric push rod 2 8 is started to drive the detection block 7 located on the inner ring of the motor rotor to move outward to position with the inner ring of the motor rotor, ensuring that the motor rotor is located in the middle position on the workbench 1, ensuring that each time the motor is polished, the detection block 7 and the positioning block 6 are moved inward. The precision of the work is the same, then the electric push rod 1 2 is started to drive the moving plate 3 to adjust the position, so that the suction cup 503 of the adsorption rod 5 is aligned with the motor rotor to be processed, and the vacuum generator 502 generates negative pressure, and the motor rotor is firmly adsorbed through the suction cup 503. Then the motor 3 504 is started to drive the gear 505 to mesh with the gear ring 501, driving the adsorption rod 5 to rotate as a whole, thereby realizing the uniform and slow rotation of the workpiece, which is convenient for multi-angle grinding and detection. The grinding rod 4 includes an outer grinding rod 401 and an inner grinding rod 402, and the position adjustment is realized through the outer adjustment groove 403 and the inner adjustment groove 404 respectively. The screw rod 406 is driven to rotate by the motor 1 407, and the two moving blocks 405 are pushed to move along the outer adjustment groove 403 and the inner adjustment groove 404 respectively, and the positions of the outer grinding rod 401 and the inner grinding rod 402 are accurately adjusted to meet the processing requirements of rotors of different specifications. The outer grinding rod 401 and the inner grinding rod 402 are driven by the motor 2 412 to rotate rapidly, and contact and grind with the inner and outer rings of the motor rotor that rotates at a uniform speed and slowly respectively. When the motor rotor rotates and grinds, it is positioned by the adsorption rod 5. At this time, the electromagnetic block 2 712 is powered off, and the adsorption and positioning of the magnetic block 2 713 is stopped. At this time, the detection rod 702 loses its positioning, and the detection rod 702 always maintains contact with the surface of the motor rotor through the elastic force of the spring 704. The contact pressure change is monitored in real time through the pressure sensor 703. When there is a depression on the rotor surface, the detection rod 702 moves outward due to the elastic force of the spring 704. At this time, the pressure of the pressure sensor 703 decreases. When there is a bulge on the rotor surface, the detection rod 702 is squeezed and moves inward and compresses the spring 704. At this time, the pressure of the pressure sensor 703 increases. The surface flatness and roughness are analyzed by the change in the pressure value of the pressure sensor 703.

[0036] A cold air chamber 705 is provided on the left side of the inner cavity of the detection rod 702, and cold air is transported to the grinding area through the cold air pipe 707 and the cold air hose 708 to reduce the high temperature caused by friction and prevent material annealing or deformation. At the same time, the cold air can blow away the debris attached to the surface of the rotor after grinding, ensuring that the rotor surface will not be affected by the debris when the contact detection with the detection rod 702 is carried out, ensuring the detection accuracy and avoiding misjudgment caused by the debris. An ink chamber 706 is provided on the right side of the detection rod 702, which is connected to the external special ink through the ink tube 709 and the ink hose 710. When the detection rod 702 detects that there are protrusions or depressions on the rotor surface, the valve 711 on the corresponding ink tube 709 is controlled to open in real time, so that the ink is sprayed on the rotor surface that rotates to the right after the detection. The speed of the rotor rotation is proportional to the speed of the ink spraying, which can ensure that the ink is sprayed and accurately falls on the rotor surface that has just been detected, and the areas that need to be focused on, such as depressions or wear points, are accurately marked. Then, the outer laser scanner 10 and the inner laser scanner 11 are used to respectively scan the inner surface of the rotor. The outer surface is scanned with high precision. When ink is found on the rotor surface, the motor 3 504 is turned off to stop driving the rotor to rotate. The stopping time of the motor 3 504 is proportional to the speed of the rotor rotation, ensuring that when the rotor stops rotating, the position with the ink mark just stays at the position in contact with the outer polishing rod 401 and the inner polishing rod 402. By staying for a certain period of time, the defective parts of the rotor are additionally polished separately. At the same time, the electromagnetic block 1 410 above the corresponding outer polishing rod 401 and the inner polishing rod 402 is controlled to emit a repulsive magnetic force, pushing the T-block 409 to move inward with the cooperation of the spring damper 411, increasing the contact force between the outer polishing rod 401 and the inner polishing rod 402 and the inner and outer surfaces of the rotor, increasing the polishing pressure, achieving local enhanced polishing, improving the polishing effect, and realizing fixed-point polishing correction for the defects of the rotor. The spring damper 411 and the electromagnetic block 1 410 work together to reduce vibration during the polishing process, ensure uniform contact pressure, and further optimize the stability of the polishing path.

[0037] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0038] In addition, it should be understood that although the present specification is described according to embodiments, not every embodiment contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that those skilled in the art can understand.

Claims

1. A rotor processing device for a brushless motor, characterized in that: include: A workbench (1), wherein four uprights (102) are evenly and fixedly connected to the upper surface of the workbench (1), a top plate (103) is fixedly connected to the upper ends of the uprights (102), two movable plates (3) are symmetrically and fixedly connected to the lower surface of the top plate (103), and a motor rotor is placed in the middle of the upper surface of the workbench (1); A grinding rod (4), comprising an outer adjustment groove (403) and an inner adjustment groove (404) provided on the lower surface of the moving plate (3); a moving block (405) is movably connected to the inner cavities of the outer adjustment groove (403) and the inner adjustment groove (404); an adjustment frame (408) is fixedly connected to the lower surface of the moving block (405); a T-shaped groove is provided in the inner cavity of the adjustment frame (408); the adjustment frame (408) is slidably connected to a T-shaped block (409) through the T-shaped groove; a motor 2 (412) is fixedly connected to the lower surface of the T-shaped block (409); two output shaft ends of the motor 2 (412) are respectively fixedly connected to an outer grinding rod (401) and an inner grinding rod (402); an electromagnetic block 1 (410) is fixedly connected to one side of the inner cavity of the adjustment frame (408); and a magnetic block is inlaid and fixedly connected to the inner cavity of the T-shaped block (409); The adsorption rod (5) comprises a gear ring (501) rotatably connected to the lower surface of the movable plate (3), two vacuum generators (502) are symmetrically fixedly connected to the lower surface of the gear ring (501), and a suction cup (503) is installed at the lower end of the vacuum generator (502); The detection block (7) comprises a rectangular block (701) movably connected to the upper surface of the workbench (1); a plurality of slide grooves are evenly arranged in the inner cavity of the rectangular block (701); a detection rod (702) is slidably connected in the slide groove of the rectangular block (701); a pressure sensor (703) is fixedly connected to the inner wall of the slide groove of the rectangular block (701); a spring (704) is fixedly connected between the detection rod (702) and the pressure sensor (703); a cold air cavity (705) and an ink cavity (706) are symmetrically arranged in the inner cavity of the detection rod (702); a cold air pipe (707) and an ink pipe (709) are respectively fixedly connected to the outer surface of the detection rod (702); and a valve (711) is installed on the ink pipe (709).

2. The rotor processing equipment for a brushless motor according to claim 1, characterized in that: Four supporting legs (101) are evenly and fixedly connected to the lower surface of the workbench (1), and anti-slip pads are fixedly connected to the lower surfaces of the supporting legs (101).

3. The rotor processing equipment for a brushless motor according to claim 1, characterized in that: The inner cavity side walls of the outer adjustment groove (403) and the inner adjustment groove (404) are both fixedly connected with a motor 1 (407), the output shaft end of the motor 1 (407) is fixedly connected with a screw rod (406), the other ends of the two screw rods (406) are rotatably connected to the inner cavity side walls of the outer adjustment groove (403) and the inner cavity side walls of the inner adjustment groove (404), and the inner cavity of the moving block (405) is threadedly connected to the outer surface of the screw rod (406).

4. The rotor processing equipment for a brushless motor according to claim 1, characterized in that: A spring damper (411) is fixedly connected to one side of the T-shaped block (409), and the other end of the spring damper (411) is fixedly connected to the inner cavity side wall of the adjustment frame (408).

5. The rotor processing equipment for a brushless motor according to claim 1, characterized in that: The outer surface of the outer grinding rod (401) abuts against the outer surface of the motor rotor, and the outer surface of the inner grinding rod (402) abuts against the inner wall of the motor rotor.

6. The rotor processing equipment for a brushless motor according to claim 1, characterized in that: The inner cavity of the lower surface of the movable plate (3) is fixedly connected to a motor three (504), the output shaft end of the motor three (504) is fixedly connected to a gear (505), the gear (505) is meshingly connected to the gear ring (501), and the lower surface of the suction cup (503) is in contact with the upper surface of the motor rotor.

7. The rotor processing equipment for a brushless motor according to claim 1, characterized in that: The cold air pipe (707) is connected to the cold air cavity (705), the ink pipe (709) is connected to the ink cavity (706), one end of the ink pipe (709) is connected to an ink hose (710), and one end of the cold air pipe (707) is connected to a cold air hose (708).

8. The rotor processing equipment for a brushless motor according to claim 1, characterized in that: A second electromagnetic block (712) is inlaid and fixed on the top of the slide groove of the rectangular block (701), and a second magnetic block (713) is inlaid and fixed at a position on the outer surface of the detection rod (702) corresponding to the second electromagnetic block (712).

9. The rotor processing equipment for a brushless motor according to claim 1, characterized in that: The upper surface of the workbench (1) is movably connected with a positioning block (6) and a detection block (7), respectively. The positioning block (6) and the detection block (7) are symmetrically arranged on the outer surface of the motor rotor. The inner cavity of the motor rotor is also provided with a detection block (7). One side of the positioning block (6) and the detection block (7) is fixedly connected to an electric push rod (8), and the other end of the electric push rod (8) is fixedly connected to a side plate (9), and the lower surface of the side plate (9) is fixedly connected to the upper surface of the workbench (1).

10. The rotor processing equipment for a brushless motor according to claim 1, characterized in that: An external laser scanner (10) and an internal laser scanner (11) are respectively fixedly connected to the upper surface of the workbench (1); the external laser scanner (10) is located on one side of the external grinding rod (401) and its lens faces the outer surface of the motor rotor; the internal laser scanner (11) is located on one side of the internal grinding rod (402) and its lens faces the inner wall of the motor rotor.

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