A rotor machining apparatus for a brushless motor

Abstract

The application discloses a rotor processing equipment for a brushless motor and relates to the technical field of motor rotor processing. The application comprises a workbench, a polishing rod, a suction rod and a detection block. The detection block and the positioning block located at the outer ring are driven by the electric push rod 2 to move inward at the same time, and the outer surface of the motor rotor is positioned. Meanwhile, the electric push rod 2 is started to drive the detection block located at the inner ring of the motor rotor to move outward to position the inner ring of the motor rotor, so that the accuracy of each processing is ensured to be the same. After the electromagnetic block 2 is powered off, the adsorption and positioning of the magnetic block 2 are stopped. 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 the surface of the rotor is concave, the pressure of the pressure sensor becomes smaller. When the surface of the rotor is convex, the pressure of the pressure sensor becomes larger. The surface flatness and roughness are analyzed through the pressure value change of the pressure sensor, and the subsequent fixed-point polishing correction program is triggered.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of motor rotor processing, more particularly, to a rotor processing device for a brushless motor. BACKGROUND

[0002] The rotor of a brushless motor is one of the important components of the motor, and it is mainly responsible for generating rotational motion during the operation of the motor, opposite to the stator. The rotor processing device for a brushless motor is a device specially used for manufacturing and finishing rotor assemblies in the motor. These devices usually integrate high-precision machinery, advanced sensing technology and intelligent control systems to ensure that the produced rotor meets strict tolerance requirements. During the processing of the rotor of a brushless motor, ensuring the flatness and roughness of the rotor surface is crucial to the overall performance of the motor. Therefore, polishing is an important step in the processing of the rotor of a brushless motor, which removes some burrs or minor defects that may be generated during the manufacturing process, reduces friction between the rotor and the bearing or other components, thereby reducing wear and tear and prolonging the service life of the motor.

[0003] In actual use, the main positions of the motor rotor that need to be polished are the journal portion and the magnet mounting surface. The journal portion is the part that directly contacts the bearing, and it is very important to ensure that this part of the surface is smooth, which can reduce wear and tear and maintain good rotational stability. The magnet mounting surface is the part that is attached to the magnet. If the magnet is not perfectly attached to it or has minor unevenness, it may affect the consistency and strength of the magnetic field. Proper polishing can make the magnet better fixed on the rotor, improving the efficiency of the motor. When polishing, first ensure that the rotor is firmly installed on the workbench, then select appropriate sandpaper or grinding wheels, and apply uniform force to polish the protrusions and depressions until the required smoothness and flatness are achieved.

[0004] In actual use, most devices can only provide basic size measurement when the motor rotor is being polished, and it is difficult to effectively identify minor surface defects such as depressions or protrusions on the rotor surface. After discovering surface defects, the existing devices can only solve the problem by reworking afterwards, and cannot adjust the polishing parameters in real time to adapt to different surface conditions, which reduces production efficiency. Therefore, in view of the above technical problems, it is necessary to provide a rotor processing device for a brushless motor. SUMMARY

[0005] The purpose of the present application is to provide a rotor processing device for a brushless motor to solve the above problems.

[0006] In order to achieve the above purpose, the technical scheme provided by the embodiments of the present application is as follows:

[0007] A rotor processing apparatus for a brushless motor, comprising a workbench, a polishing rod, a suction rod and a detection block, the upper surface of the workbench is uniformly and fixedly connected with four stands, the upper end of the stand is fixedly connected with a top plate, the lower surface of the top plate is symmetrically and fixedly connected with two moving plates, and the upper surface of the workbench is placed with a motor rotor; the polishing rod comprises an outer adjusting groove and an inner adjusting groove opened in the lower surface of the moving plate, the inner cavity of the outer adjusting groove and the inner adjusting groove is movably connected with a moving block, the lower surface of the moving block is fixedly connected with an adjusting frame, the inner cavity of the adjusting frame is provided with a T-shaped groove, the adjusting frame is movably connected with a T-shaped block through the T-shaped groove, the lower surface of the T-shaped block is fixedly connected with a motor two, the output shaft end of the two motor two is fixedly connected with an outer polishing rod and an inner polishing rod respectively, one side of the inner cavity of the adjusting frame is fixedly connected with an electromagnetic block one, and the inner cavity of the T-shaped block is embeddedly and fixedly connected with a magnetic block; the suction rod comprises a gear ring rotatably connected to the lower surface of the moving plate, the lower surface of the gear ring is symmetrically and fixedly connected with two vacuum generators, and the lower end of the vacuum generator is provided with a suction disc; the detection block comprises a rectangular block movably connected to the upper surface of the workbench, a plurality of sliding grooves are uniformly and formed in the inner cavity of the rectangular block, a detection rod is movably connected in the sliding groove of the rectangular block, a pressure sensor is fixedly connected to the inner wall of the sliding groove of the rectangular block, a spring is fixedly connected between the detection rod and the pressure sensor, cold air cavities and ink cavities are symmetrically formed in the inner cavity of the detection rod, a cold air pipe and an ink pipe are fixedly connected to the outer surface of the detection rod respectively, and a valve is mounted on the ink pipe.

[0008] As a further improvement of the application, the lower surface of the workbench is uniformly and fixedly connected with four supporting legs, and the lower surface of the supporting leg is fixedly connected with an anti-skid pad.

[0009] As a further improvement of the application, the inner cavity side wall of the outer adjusting groove and the inner adjusting groove is fixedly connected with a motor one, the output shaft end of the motor one is fixedly connected with a screw rod, the other end of the two screw rods is rotatably connected with the inner cavity side wall of the outer adjusting groove and the inner adjusting groove respectively, and the inner cavity of the moving block is threadedly connected with the outer surface of the screw rod.

[0010] As a further improvement of the application, one side of the T-shaped block is fixedly connected with a spring damper, and the other end of the spring damper is fixedly connected with the inner cavity side wall of the adjusting frame.

[0011] As a further improvement of the application, the outer surface of the outer polishing rod abuts against the outer surface of the motor rotor, and the outer surface of the inner polishing rod abuts against the inner wall of the motor rotor.

[0012] As a further improvement of the application, the inner cavity of the lower surface of the moving plate is fixedly connected with a motor three, the output shaft end of the motor three is fixedly connected with a gear, the gear is meshingly connected with the gear ring, and the lower surface of the suction disc abuts against the upper surface of the motor rotor.

[0013] As a further improvement of the application, the cold air pipe is communicated with the cold air cavity, the ink pipe is communicated with the ink cavity, and the ink pipe is communicated with an ink hose at one end.

[0014] As a further improvement of the application, the top of the sliding groove of the rectangular block is inlaid with an electromagnetic block two, and the outer surface of the detection rod is inlaid with a magnetic block two at a position corresponding to the electromagnetic block two.

[0015] As a further improvement of the application, the upper surface of the workbench is movably connected with a positioning block and a detection block respectively, the positioning block and the detection block 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, one side of the positioning block and the detection block is fixedly connected with an electric push rod two, the other end of the electric push rod two is fixedly connected with a side plate, and the lower surface of the side plate is fixedly connected with the upper surface of the workbench.

[0016] As a further improvement of the application, the upper surface of the workbench is fixedly connected with an outer laser scanner and an inner laser scanner respectively, the outer laser scanner is located on one side of the outer polishing rod and its lens is directly opposite to the outer surface of the motor rotor, and the inner laser scanner is located on one side of the inner polishing rod and its lens is directly opposite to the inner wall of the motor rotor.

[0017] Compared with the prior art, the application has the following advantages:

[0018] (1) The scheme drives the moving plate to adjust the position by starting the electric push rod one, so that the suction cup of the adsorption rod is aligned with the motor rotor to be processed, the vacuum generator generates negative pressure, the motor rotor is firmly adsorbed by the suction cup, then the gear and the gear ring are engaged by starting the motor three, the adsorption rod is driven to rotate as a whole, so that the workpiece rotates at a uniform and slow speed, which is convenient for multi-angle polishing and detection, the polishing rod includes an outer polishing rod and an inner polishing rod, and the position adjustment is realized by the outer adjusting groove and the inner adjusting groove respectively, so that the positions of the outer polishing rod and the inner polishing rod are accurately adjusted to adapt to the processing requirements of different specifications of rotors.

[0019] (2) This scheme drives the detection block and positioning block located in the outer ring to move inward at the same time through the electric push rod 2, and the outer surface of the motor rotor is positioned, and the detection block located in the inner circle of the motor rotor is driven to move outward through the electric push rod 2 to position the inner circle of the motor rotor, so as to ensure that the motor rotor is located in the middle position on the workbench, ensure that the accuracy of each processing is the same, and the electromagnetic block 2 is powered off to stop the adsorption positioning of the magnetic block 2. At this time, the detection rod always maintains contact with the surface of the motor rotor through the elastic force of the spring, and the contact pressure change is monitored in real time through the pressure sensor. When the rotor surface has a depression, the detection rod moves outward through the elastic force of the spring at this time. At this time, the pressure of the pressure sensor becomes smaller, and when the rotor surface has a protrusion, the detection rod is extruded to move inward and compress the spring, and at this time the pressure of the pressure sensor becomes larger. The surface flatness and roughness are analyzed through the pressure value change of the pressure sensor, and the subsequent fixed-point polishing correction program is triggered;

[0020] (3) The left side of the detection rod cavity is provided with a cold air cavity which sends cold air to the polishing area through a cold air pipe and a cold air hose, so as to reduce the high temperature generated by friction and prevent the material from annealing or deforming. At the same time, the cold air can blow away the debris attached to the polished rotor surface, so as to ensure that the rotor surface will not be affected by the debris when the detection rod detects the contact, ensure the detection accuracy, and the right side of the detection rod is provided with an ink cavity which is communicated with the outside special ink through an ink pipe and an ink hose. When the detection rod detects that the rotor surface has a protrusion or a depression, the valve on the corresponding ink pipe is opened at this time, so that the ink is sprayed on the rotor surface which rotates to the right after detection. The inner and outer surfaces of the rotor are scanned with high precision by the outer and inner laser scanners respectively. When the ink is scanned on the rotor surface, the motor 3 is turned off at this time to stop driving the rotor to rotate. Through the stay for a certain period of time, the place with defects on the rotor is additionally polished separately, so as to realize local strengthening polishing, improve the polishing effect, and avoid rework afterwards. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0022] Figure 2 It is a schematic diagram of the overall structure of the present application from the back;

[0023] Figure 3 It is a schematic diagram of the internal structure of the present application;

[0024] Figure 4 It is a schematic diagram of the external polishing rod structure of the present application;

[0025] Figure 5 It is a schematic diagram of the adsorption rod structure of the present application;

[0026] Figure 6 It is a schematic diagram of the rectangular block structure of the present application;

[0027] Figure 7 A schematic diagram of the detection block structure of the present application;

[0028] Figure 8 A schematic diagram of the detection block structure of the present application;

[0029] Figure 9 A schematic diagram of the detection block structure of the present application;

[0030] Explanation of the reference numerals in the drawings:

[0031] 1, workbench; 101, support leg; 102, upright column; 103, top plate; 2, electric push rod one; 3, moving plate; 4, polishing rod; 401, outer polishing rod; 402, inner polishing rod; 403, outer adjusting groove; 404, inner adjusting groove; 405, moving block; 406, screw rod; 407, motor one; 408, adjusting frame; 409, T-shaped block; 410, electromagnetic block one; 411, spring damper; 412, motor two; 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 cavity; 706, ink cavity; 707, cold air pipe; 708, cold air hose; 709, ink pipe; 710, ink hose; 711, valve; 712, electromagnetic block two; 713, magnetic block two; 8, electric push rod two; 9, side plate; 10, outer laser scanner; 11, inner laser scanner. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0033] Embodiment one:

[0034] Please refer to Figures 1-4A kind of rotor processing equipment for brushless motor, including workbench 1, polishing rod 4, adsorption rod 5 and detection block 7, four columns 102 are uniformly fixedly connected on the upper surface of workbench 1, the upper end of column 102 is fixedly connected with top plate 103, two moving plates 3 are fixedly connected on the lower surface of top plate 103 in a symmetrical manner, motor rotor is placed in the middle of the upper surface of workbench 1, polishing rod 4 includes outer adjusting groove 403 and inner adjusting groove 404 opened in the lower surface of moving plate 3, mobile block 405 is movably connected in the inner cavity of outer adjusting groove 403 and inner adjusting groove 404, adjusting frame 408 is fixedly connected on the lower surface of mobile block 405, T-shaped groove is opened in the inner cavity of adjusting frame 408, adjusting frame 408 is slidably connected with T-shaped block 409 by T-shaped groove, motor two 412 is fixedly connected on the lower surface of T-shaped block 409, outer polishing rod 401 and inner polishing rod 402 are fixedly connected on the output shaft end of two motor two 412 respectively, electromagnetic block one 410 is fixedly connected on the inner cavity of adjusting frame 408, magnetic block is embeddedly fixedly connected in the inner cavity of T-shaped block 409.

[0035] Specifically, four supporting legs 101 are uniformly fixedly connected on the lower surface of workbench 1, antiskid pad is fixedly connected on the lower surface of supporting leg 101, motor one 407 is fixedly connected on the inner cavity side wall of outer adjusting groove 403 and inner adjusting groove 404, screw rod 406 is fixedly connected on the output shaft end of motor one 407, two screw rods 406 are rotatably connected with the inner cavity side wall of outer adjusting groove 403 and inner adjusting groove 404 respectively on the other end, the inner cavity of mobile block 405 is threadedly connected with the outer surface of screw rod 406, spring damper 411 is fixedly connected on one side of T-shaped block 409, the other end of spring damper 411 is fixedly connected with the inner cavity side wall of adjusting frame 408, the outer surface of outer polishing rod 401 is abutted with the outer surface of motor rotor, the outer surface of inner polishing rod 402 is abutted with the inner wall of motor rotor.

[0036] Further, first, the motor rotor that needs to be polished is placed on workbench 1, polishing rod 4 includes outer polishing rod 401 and inner polishing rod 402, position adjustment is realized through outer adjusting groove 403 and inner adjusting groove 404 respectively, screw rod 406 is driven to rotate by motor one 407, two mobile blocks 405 are pushed to move along outer adjusting groove 403 and inner adjusting groove 404 respectively, the position of outer polishing rod 401 and inner polishing rod 402 is accurately adjusted, and the processing requirement of different specifications of rotor is adapted.

[0037] The outer polishing rod 401 and the inner polishing rod 402 are driven to rotate rapidly by the motor two 412, and are in contact with the inner and outer rings of the motor rotor rotating at a uniform and slow speed, and the defects of the rotor are additionally polished separately, and at the same time, the repulsive magnetic force of the electromagnetic block one 410 above the corresponding outer polishing rod 401 and inner polishing rod 402 is controlled to push the T-shaped block 409 to move inward under the cooperation of the spring damper 411, increase the contact force of the outer polishing rod 401 and the inner polishing rod 402 with the inner and outer surfaces of the rotor, increase the polishing pressure, realize local reinforced polishing, improve the polishing effect, realize fixed-point polishing correction of the defects of the rotor, and the spring damper 411 and the electromagnetic block one 410 cooperate to reduce the vibration in the polishing process, ensure the uniform contact pressure, and further optimize the stability of the polishing path.

[0038] Embodiment two:

[0039] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 5 , a rotor processing equipment for a brushless motor further comprises a suction rod 5, comprising a gear ring 501 rotatably connected to the lower surface of the moving plate 3, and two vacuum generators 502 are symmetrically and fixedly connected to the lower surface of the gear ring 501, and a suction disc 503 is installed at the lower end of the vacuum generator 502.

[0040] Specifically, the inner cavity of the lower surface of the moving plate 3 is fixedly connected with a motor three 504, the output shaft end of the motor three 504 is fixedly connected with a gear 505, the gear 505 is meshingly connected with the gear ring 501, and the lower surface of the suction disc 503 is in abutment with the upper surface of the motor rotor.

[0041] Further, the electric push rod one 2 is started to drive the moving plate 3 to adjust the position, so that the suction disc 503 of the suction rod 5 is aligned with the motor rotor to be processed, the vacuum generator 502 generates negative pressure, and the motor rotor is firmly adsorbed by the suction disc 503, then the motor three 504 is started to drive the gear 505 to mesh with the gear ring 501, and the suction rod 5 is driven to rotate as a whole, so as to realize the uniform and slow rotation of the workpiece, and facilitate multi-angle polishing and detection.

[0042] Embodiment three:

[0043] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 6 、 Figure 7 、 Figure 8 and Figure 9The utility model provides a rotor processing apparatus for brushless motor still further includes detection block 7, including movable connection rectangular block 701 on the surface of work table 1, the rectangular block 701 inner chamber evenly is provided with a plurality of sliding slots, the sliding slot of rectangular block 701 is slidably connected with detection rod 702, the sliding slot of rectangular block 701 is fixedly connected with pressure sensor 703 on the inner wall, detection rod 702 and pressure sensor 703 are fixedly connected with spring 704, detection rod 702 inner chamber is symmetrically provided with cold air cavity 705 and ink cavity 706, detection rod 702 outer surface is fixedly connected with cold air pipe 707 and ink pipe 709 respectively, and valve 711 is installed on ink pipe 709.

[0044] Specifically, the cold air pipe 707 is communicated with the cold air cavity 705, the ink pipe 709 is communicated with the ink cavity 706, one end of the ink pipe 709 is communicated with the ink hose 710, one end of the cold air pipe 707 is communicated with the cold air hose 708, the top of the sliding slot of the rectangular block 701 is embeddedly fixed with the electromagnetic block two 712, the outer surface of the detection rod 702 is embeddedly fixed with the magnetic block two 713 at the position corresponding to the electromagnetic block two 712, the upper surface of the work table 1 is movably connected with the positioning block 6 and the 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 the detection block 7, one side of the positioning block 6 and the detection block 7 is fixedly connected with the electric push rod two 8, the other end of the electric push rod two 8 is fixedly connected with the side plate 9, the lower surface of the side plate 9 is fixedly connected with the upper surface of the work table 1, the upper surface of the work table 1 is fixedly connected with the outer laser scanner 10 and the inner laser scanner 11 respectively, the outer laser scanner 10 is located at one side of the outer polishing rod 401 and the lens thereof faces the outer surface of the motor rotor, and the inner laser scanner 11 is located at one side of the inner polishing rod 402 and the lens thereof faces the inner wall of the motor rotor.

[0045] Further, one detection block 7 is located in 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 two 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, the outer surface of the motor rotor is positioned, and the electric push rod two 8 is started to drive the detection block 7 located in the inner ring of the motor rotor to move outward to position the inner ring of the motor rotor, so that the motor rotor is located in the middle position on the work table 1, and the accuracy of each processing is ensured to be the same.

[0046] When the motor rotor rotates for polishing, it is positioned by the adsorption rod 5. At this time, the electromagnetic block two 712 is powered off to stop the adsorption positioning of the magnetic block two 713. At this time, the detection rod 702 loses 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 the rotor surface has a depression, the detection rod 702 moves outward through the elastic force of the spring 704 at this time. At this time, the pressure of the pressure sensor 703 becomes smaller. When the rotor surface has a protrusion, the detection rod 702 is extruded to move inward and compress the spring 704. At this time, the pressure of the pressure sensor 703 becomes larger. The flatness and roughness of the surface are analyzed through the pressure value change of the pressure sensor 703.

[0047] The pressure sensor 703 is preset with three interval values. The normal interval is a preset standard pressure range, indicating that the rotor surface is flat. The low pressure interval depression determination is that when the pressure value is lower than the lower limit, the system determines that it is a depression. The high pressure interval protrusion determination is that when the pressure value is higher than the upper limit, the system determines that it is a protrusion. The real-time data of the pressure sensor 703 is analyzed through the control system, and a flatness report of the rotor surface can be generated, and a subsequent point polishing correction program is triggered.

[0048] The left side of the inner cavity of the detection rod 702 is provided with a cold air cavity 705. Cold air is delivered to the polishing area through the cold air pipe 707 and the cold air hose 708 to reduce the high temperature generated by friction and prevent the material from annealing or deforming. At the same time, the cold air can blow away the debris attached to the polished rotor surface, ensuring that the rotor surface will not be affected by the debris when the detection rod 702 detects the contact, ensuring the detection accuracy and avoiding false judgments caused by debris.

[0049] The right side of the detection rod 702 is provided with an ink cavity 706. The ink cavity 706 is in communication with the outside special ink through the ink pipe 709 and the ink hose 710. When the detection rod 702 detects that the rotor surface has a protrusion or a depression, the valve 711 on the corresponding ink pipe 709 is opened in real time to make the ink sprayed on the rotor surface that rotates to the right after detection. The speed of the rotor rotation is proportional to the speed of the ink ejection, which can ensure that the ink is ejected and accurately falls on the rotor surface just detected, accurately marking the areas that need to be processed, such as depressions or wear points. The ink is ejected at a speed synchronized with the rotor speed to ensure accurate marking of the defect position (for example, when the speed is 5 RPM, the ink ejection time is accurate to 0.1 seconds).

[0050] Then the outer laser scanner 10 and the inner laser scanner 11 are used to scan the inner and outer surfaces of the rotor respectively with high precision. When the ink mark is scanned, the motor three 504 is turned off to stop driving the rotor, and the time of stopping the motor three 504 is proportional to the speed of the rotor, so that the ink mark of the rotor is just in contact with the outer polishing rod 401 and the inner polishing rod 402 when the rotor stops. (The outer laser scanner 10 and the inner laser scanner 11 scan the surface of the rotor in a non-contact manner, and the high-resolution 3D point cloud data generated has a precision of 0.01 mm. When the ink mark is scanned, the system calculates the current rotation angle of the rotor, and the motor three 504 is turned off through PID control to make the mark position of the rotor stop in line with the outer polishing rod 401 and the inner polishing rod 402 with an error of ≤0.5°), and the rotor is stopped for a certain period of time to perform additional separate polishing on the defective part of the rotor, so as to achieve local reinforcement polishing and improve the polishing effect. The defective part of the rotor is polished and corrected at a fixed point to avoid subsequent rework.

[0051] Working principle: during the use of the device, first put the motor rotor to be polished on the workbench 1, at this time a detection block 7 is located in the inner circle of the motor rotor, and the other detection block 7 and the positioning block 6 are symmetrically arranged on the outer circle of the motor rotor, at this time the electric push rod two 8 is started to drive the detection block 7 and the positioning block 6 located on the outer circle to move inward at the same time, and the outer surface of the motor rotor is positioned, at the same time, the electric push rod two 8 is started to drive the detection block 7 located in the inner circle of the motor rotor to move outward and position the inner circle of the motor rotor, ensuring that the motor rotor is located in the middle position on the workbench 1, ensuring that the accuracy of each processing is the same, then start the electric push rod one 2 to drive the moving plate 3 to adjust the position, so that the suction cup 503 of the suction rod 5 is aligned with the motor rotor to be processed, the vacuum generator 502 generates negative pressure, and the motor rotor is firmly adsorbed through the suction cup 503, then start the motor three 504 to drive the gear 505 to engage with the gear ring 501, drive the suction rod 5 to rotate as a whole, so as to realize the uniform and slow rotation of the workpiece, which is convenient for multi-angle polishing and detection, the polishing rod 4 includes an outer polishing rod 401 and an inner polishing rod 402, which are respectively adjusted in position through the outer adjusting groove 403 and the inner adjusting groove 404, and the screw rod 406 is driven to rotate through the motor one 407, and the two moving blocks 405 are pushed to move along the outer adjusting groove 403 and the inner adjusting groove 404 respectively, so as to accurately adjust the position of the outer polishing rod 401 and the inner polishing rod 402, and adapt to the processing requirements of rotors of different specifications, the outer polishing rod 401 and the inner polishing rod 402 are driven to rotate quickly through the motor two 412, and respectively contact and polish the inner and outer circles of the motor rotor rotating at a uniform and slow speed, when the motor rotor rotates and polishes, the suction rod 5 is positioned, at this time the electromagnetic block two 712 is de-energized to stop adsorbing and positioning the magnetic block two 713, at this time the detection rod 702 loses positioning, and the detection rod 702 always maintains contact with the surface of the motor rotor through the elastic force of the spring 704, and the pressure sensor 703 monitors the change of contact pressure in real time, when the surface of the rotor has a depression, at this time the detection rod 702 moves outward through the elastic force of the spring 704, at this time the pressure of the pressure sensor 703 becomes smaller, when the surface of the rotor has a protrusion, at this time the detection rod 702 is extruded to move inward and compress the spring 704, at this time the pressure of the pressure sensor 703 becomes larger, and the surface flatness and roughness are analyzed through the pressure value change of the pressure sensor 703.

[0052] The left side of the inner cavity of the detection rod 702 is provided with a cold air cavity 705, and cold air is delivered to the polishing area through a cold air pipe 707 and a cold air hose 708 to reduce the high temperature generated by friction and prevent the material from annealing or deforming. At the same time, the cold air can blow away the debris attached to the surface of the polished rotor, ensuring that the rotor surface is not affected by the debris when the detection rod 702 detects the contact, ensuring the detection accuracy and avoiding false judgments caused by debris. The right side of the detection rod 702 is provided with an ink cavity 706, which is in communication with the outside special ink through an ink pipe 709 and an ink hose 710. When the detection rod 702 detects that the rotor surface has protrusions and depressions, the valve 711 on the corresponding ink pipe 709 is opened in real time to allow the ink to be sprayed on the rotor surface that rotates to the right after detection. The speed of the rotor rotation is proportional to the speed of the ink ejection, 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 processed, such as depressions or wear points. Then, the outer laser scanner 10 and the inner laser scanner 11 scan the inner and outer surfaces of the rotor with high precision, respectively. When the ink is detected on the rotor surface, the motor three 504 is turned off at this time to stop driving the rotor to rotate. The time when the motor three 504 stops is proportional to the speed of the rotor rotation, which ensures that the position of the rotor with ink marks is just stopped at the position in contact with the outer polishing rod 401 and the inner polishing rod 402 when the rotor stops rotating. By stopping for a certain period of time, the defective part of the rotor is additionally polished separately. At the same time, the repulsive magnetic force of the electromagnetic block one 410 above the corresponding outer polishing rod 401 and inner polishing rod 402 is controlled to push the T-shaped block 409 to move inward under the cooperation of the spring damper 411, increase the contact force between the outer polishing rod 401 and the inner polishing rod 402 and the inner and outer surfaces of the rotor, and increase the polishing pressure to realize local reinforced polishing and improve the polishing effect. The spring damper 411 and the electromagnetic block one 410 work together to reduce vibration during polishing, ensure uniform contact pressure, and further optimize the stability of the polishing path.

[0053] It will be obvious to a person skilled in the art that, without departing from the spirit or essential characteristics of the application, the present application can be implemented in other specific forms. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the scope of the claims.

[0054] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. A rotor processing device for brushless motors, characterized in that: include: A workbench (1) has four columns (102) evenly fixedly connected to its upper surface. A top plate (103) is fixedly connected to the upper end of each column (102). Two movable 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) includes an outer adjustment groove (403) and an inner adjustment groove (404) formed on the lower surface of the movable plate (3). A moving block (405) is movably connected to the inner cavity 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-slot is formed in the inner cavity of the adjustment frame (408). A T-block (409) is slidably connected to the adjustment frame (408) through the T-slot. A second motor (412) is fixedly connected to the lower surface of the T-block (409). An outer grinding rod (401) and an inner grinding rod (402) are fixedly connected to the output shaft ends of the two second motors (412) respectively. An electromagnetic block (410) is fixedly connected to one side of the inner cavity of the adjustment frame (408). A magnetic block is embedded and fixedly connected to the inner cavity of the T-block (409). The adsorption rod (5) includes a toothed ring (501) rotatably connected to the lower surface of the moving plate (3). Two vacuum generators (502) are symmetrically fixed to the lower surface of the toothed ring (501). A suction cup (503) is installed at the lower end of the vacuum generator (502). The detection block (7) includes a rectangular block (701) movably connected to the upper surface of the workbench (1). The rectangular block (701) has multiple grooves evenly distributed in its inner cavity. A detection rod (702) is slidably connected in the groove of the rectangular block (701). A pressure sensor (703) is fixedly connected to the inner wall of the 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 chamber (705) and an ink chamber (706) are symmetrically distributed in the inner cavity of the detection rod (702). A cold air pipe (707) and an ink pipe (709) are fixedly connected to the outer surface of the detection rod (702). A valve (711) is installed on the ink pipe (709). An electromagnetic block (712) is embedded and fixedly fixed at the top of the groove of the rectangular block (701). A magnetic block (713) is embedded and fixedly fixed at the position corresponding to the electromagnetic block (712) on the outer surface of the detection rod (702).

2. The rotor processing equipment for brushless motors according to claim 1, characterized in that: The workbench (1) has four support legs (101) evenly fixedly connected to its lower surface, and the support legs (101) have anti-slip pads fixedly connected to their lower surfaces.

3. The rotor processing equipment for brushless motors according to claim 1, characterized in that: Motor 1 (407) is fixedly connected to the inner wall of the outer adjustment groove (403) and the inner adjustment groove (404). A screw (406) is fixedly connected to the output shaft end of the motor 1 (407). The other ends of the two screws (406) are rotatably connected to the inner wall 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).

4. The rotor processing equipment for brushless motors according to claim 1, characterized in that: 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 wall of the adjusting frame (408).

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

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

8. The rotor processing equipment for brushless motors according to claim 1, characterized in that: The upper surface of the workbench (1) is movably connected to a positioning block (6) and a detection block (7). 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). The other end of the electric push rod (8) is fixedly connected to a side plate (9). The lower surface of the side plate (9) is fixedly connected to the upper surface of the workbench (1).

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

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