Rotor magnetizing device and magnetizing method thereof

Abstract

The invention provides a rotor magnetizing device and a magnetizing method thereof.The rotor magnetizing device comprises a machine base and a rotating disc structure, a rotating disc rotates to drive rotors on the rotating disc to sequentially enter all machining stations, and the machining stations comprise a feeding and discharging comprehensive station, a magnetizing station and a surface magnetic detection station; the feeding and discharging comprehensive station is provided with a material receiving mechanism and a detection mechanism. The material receiving mechanism receives the rotor and transfers the rotor to the rotating disc. The detection mechanism comprises a height measurement unit and a direction measurement unit, the height measurement unit detects the height of the rotor, and the direction measurement unit detects the circumferential face orientation position of the rotor; the loading and unloading comprehensive station is provided with a demagnetizing mechanism for demagnetizing the end part of the magnetized rotor; the magnetizing station is provided with a magnetizing box and a rotor positioning mechanism, and the rotor positioning mechanism clamps the orientation of the rotor and lifts the rotor to a required position in the magnetizing box; the magnetizing box magnetizes the rotor; and the surface magnetic detection station performs surface magnetic detection on the rotor. According to the rotor magnetizing device provided by the invention, the structure is simplified, and the magnetizing efficiency and precision are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of rotor magnetization, and in particular to a rotor magnetization device and a magnetization method thereof. Background Art

[0002] During the manufacturing process of the motor rotor, the main section of the rotor needs to be magnetized to make it magnetic, such as Figure 1 The rotor shown has a main body section 101 and end portions 102 formed at both ends of the main body section 101. The end portions 102 are used for assembly and have a diameter smaller than the diameter of the main body section 101. The end of the main body section 101 facing the end portion is formed with an end face 103. Each end portion is formed with a plurality of steps. Correspondingly, the two ends of the rotor have a plurality of step surfaces. The steps are formed with assembly grooves 104 (used as clamping grooves in the embodiment of the present invention), and both end surfaces of the rotor are provided with shaft sleeve holes for the two ends of the rotor to be clamped by the positioning mechanism. The rotor is magnetized by a magnetizing device. During magnetization, the rotor is placed in the magnetizing device as a whole. After magnetization, the magnetization amount is detected, and the end of the rotor is demagnetized to prevent the magnetism of the rotor end from affecting the performance of the rotor. The existing magnetization process of the rotor generally includes the processes of loading, magnetization, magnetization amount detection, surface magnetism detection (i.e., detection of the number of magnetic steels and magnetic flux saturation), demagnetization, and unloading; the processing production line adopts assembly line type and turntable type, among which the turntable type occupies less space and is more compact as a whole, which is more conducive to processing operations and is widely used in the industry. For example, the magnetization, demagnetization and surface magnetism integrated equipment disclosed in CN202410565961.0 and a processing device for rotor production disclosed in CN202321016114 both adopt a turntable structure. In the above two patents, there are many overall workstations, such as a separate workstation for loading, a workstation for magnetization, and a workstation for demagnetization, which makes the overall structure relatively complex; in addition, even for the same batch of rotors, the height of the main section of the rotor may be slightly different, and the saturation or yield of the rotor magnetization is greatly related to the angle and height position of the rotor in the magnetization device, and it is necessary to ensure the position is accurate, otherwise it will affect the magnetization performance of the rotor and fail to meet the requirements.

[0003] The current rotor magnetic processing magnetic device basically fixes the rotor at a corresponding position in the magnetizing device during magnetization, and cannot adjust the installation height of the rotor according to the different rotor lengths. Therefore, the existing rotor magnetizing device may have length deviations for different rotors, resulting in low magnetization accuracy. Summary of the invention

[0004] In view of the above, it is necessary for the present invention to provide a rotor magnetizing device that can simplify the structure and improve the magnetizing accuracy.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A rotor magnetizing device comprises a machine base and a turntable structure, wherein the machine base comprises a machine platform and a frame mounted on the machine platform, the turntable structure is mounted on the machine platform and comprises a turntable and a tray structure arranged on the turntable, a plurality of processing stations are arranged around the turntable on the machine platform, and the rotor on the turntable is driven to enter each processing station in sequence by the rotation of the turntable, and the processing stations comprise a loading and unloading integrated station, a magnetizing station and a surface magnetism detection station;

[0007] The loading and unloading integrated station is provided with a receiving mechanism and a detection mechanism. The receiving mechanism is used to receive the rotor and transfer it to the tray structure; the detection mechanism includes a height measuring unit and a direction measuring unit. The height measuring unit is used to detect the height of the rotor after loading, and the direction measuring unit is used to detect the circumferential direction of the rotor.

[0008] The integrated loading and unloading station is also provided with a demagnetization mechanism, which includes a demagnetization cover, which is used to demagnetize the end of the magnetized rotor;

[0009] The magnetizing station is provided with a magnetizing box and a rotor positioning mechanism. The rotor positioning mechanism includes a lifting mechanism and a pressing mechanism. The lifting mechanism is installed on the machine platform and is used to lift the rotor and position the rotor at a corresponding angle. The pressing mechanism is installed on the frame and is used to drive the rotor to rotate and press the rotor down. The lifting mechanism cooperates with the pressing mechanism to position the rotor in the direction and lift the rotor to the required position in the magnetizing box. The magnetizing box magnetizes the rotor and detects the magnetic flux after magnetization.

[0010] The surface magnetic detection station is provided with a support assembly and a surface magnetic detection assembly, which support and lift both ends of the rotor to a preset position. The surface magnetic detection assembly can be lifted and lowered on one side of the support assembly to perform surface magnetic detection on the rotor.

[0011] In addition, the present invention provides a magnetizing method for the rotor magnetizing device.

[0012] A demagnetization method for a rotor magnetizing device, the specific process of which is as follows:

[0013] A. The turntable moves to the loading and unloading integrated station, the rotor is loaded, the receiving mechanism receives the rotor and places it on the tray structure; the detection mechanism detects the height of the rotor;

[0014] B. The turntable moves to the magnetizing station, the lifting mechanism lifts the rotor and positions it to determine its orientation. According to the height of the rotor detected by the height measuring unit, the required descending stroke of the pressing mechanism is calculated, and the pressing mechanism presses the rotor down to the corresponding height in the magnetizing box; after magnetization, the lifting mechanism and the pressing mechanism rise, lift the rotor to the tray structure position, the rotor is placed on the tray structure, and the lifting mechanism and the pressing mechanism are separated from the rotor;

[0015] C. The turntable moves to the surface magnetic detection station to perform surface magnetic detection on the rotor;

[0016] D. The turntable moves to the loading and unloading integrated station, the receiving mechanism rises and receives the rotor to the preset height, the direction finding unit starts to detect the circumferential direction of the rotor to ensure the accurate orientation of the rotor; the demagnetization mechanism is started, the demagnetization cover descends and is mounted on the top of the rotor to demagnetize the top of the rotor. After demagnetization is completed; the demagnetization cover rises and moves out of the top of the rotor to remove the rotor.

[0017] The beneficial effects of the present invention are:

[0018] The rotor magnetizing device provided by the present invention detects the height of the rotor at the loading and unloading integrated station, and then performs a corresponding displacement according to the detected height at the magnetizing station and sends it into the magnetizing box, and ensures the orientation and height of the rotor through the cooperation of the lifting mechanism and the pressing mechanism, so that the rotor magnetization position is accurate, and similarly, the height of the rotor is also ensured to be accurate during demagnetization; and a direction finding unit is arranged at the loading and unloading integrated station, which can detect the circumferential orientation of the rotor end during demagnetization, thereby ensuring the accurate demagnetization position of the rotor; in addition, the rotor magnetizing device of the present invention integrates the functions of the loading station, the demagnetization station, and the unloading station in one station, which greatly simplifies the structure of the rotor magnetizing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional diagram of the rotor;

[0020] Figure 2 It is a first-perspective stereoscopic view of the rotor magnetizing device;

[0021] Figure 3 This is a three-dimensional picture of the turntable installed on the machine table (part of the tray structure is not covered);

[0022] Figure 4 for Figure 3 The enlarged view of point A is shown;

[0023] Figure 5 It is a three-dimensional diagram of the material receiving mechanism;

[0024] Figure 6 A three-dimensional diagram of a demagnetization mechanism mounted on a frame;

[0025] Figure 7 It is a three-dimensional diagram of the demagnetization mechanism;

[0026] Figure 8 A three-dimensional diagram of the transverse movement module of the demagnetization mechanism;

[0027] Fig. 9 A second perspective stereoscopic view of the rotor magnetizing device;

[0028] Fig.10 It is a stereoscopic diagram of the lifting mechanism from the first perspective;

[0029] Fig.11 A stereogram of the lifting mechanism from a second viewing angle;

[0030] Fig.12 It is a three-dimensional diagram of the receiving tube structure;

[0031] Fig.13 It is a three-dimensional diagram of the frame cooperating with the pressing mechanism;

[0032] Fig.14 A three-dimensional diagram of the pressing mechanism pressing the rotor;

[0033] Fig.15 A three-dimensional diagram of the driving mechanism and the crimping structure;

[0034] Fig.16 This is a three-dimensional diagram of the surface magnetic detection station structure and the turntable installed on the machine platform;

[0035] Fig.17 for Fig.16 An enlarged view of point B is shown.

[0036] Description of reference numerals:

[0037] Base 10; turntable structure 20; machine table 11; frame 12; turntable 21; tray structure 22; perforation 211; tray 221; push member 222; bearing hole 2211; notch 2212; slide rail 223; material receiving mechanism 30; detection mechanism 40; fixed seat 31; material receiving barrel 32; lifting drive member 33; support rod 311; top plate 312; guide column 314; mounting plate 315; lifting plate 316; through hole 3121; monitoring member 317; rotor driving mechanism 34; belt rotating motor 341; detection mechanism 40; lifting guide seat 42; lateral guide seat 43; height measuring unit 44; direction measuring unit 45; support frame 411; frame 412; fixed plate 421; lifting slide plate 422; fixing seat 431; transverse plate 432; contact rod 441; magnetizing box 50; lifting mechanism 60; pressing mechanism 70; fixing frame 61; driving cylinder 62; lifting plate 63; receiving tube structure 64; fixing plate 611; fixing column 612; shaft tube 641; positioning clamping structure 642; sliding bar 6421; lifting assembly 71; driving mechanism 72; crimping tube 73; guide plate 711; sliding plate 712; sliding driving member 713; driving motor 721; transmission belt 722; demagnetization mechanism 80; demagnetization cover 81; demagnetization detection member 82; supporting assembly 91; surface magnetism detection assembly 92; guide seat 911; lifting platform 912. DETAILED DESCRIPTION

[0038] The specific implementation of the present application is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present application, and is not used to limit the present application.

[0039] like Figure 2 As shown, an embodiment of the present invention provides a rotor magnetizing device, including a machine base 10 and a turntable structure 20. The machine base 10 includes a machine table 11 and a frame 12 installed on the machine table 11. The turntable structure 20 is installed on the machine table 11 and includes a turntable 21. A plurality of processing stations are arranged around the turntable 20 on the machine table 11. The turntable 21 rotates to drive the rotor on the turntable 21 to enter each processing station in sequence. The processing stations include a loading and unloading integrated station, a magnetizing station and a surface magnetism detection station; the rotor to be processed is installed on the turntable at the loading and unloading integrated station by a manipulator to detect the height of the rotor; the turntable then rotates to send the rotor to the magnetizing station; the magnetizing station positions the rotor in height and angle in the magnetizing box, magnetizes the rotor and detects the magnetic flux after magnetization; the turntable then rotates to send the rotor to the surface magnetism detection station, which detects the number and saturation of the rotor's magnetic steel; the turntable then rotates to send the rotor to the loading and unloading integrated station, which demagnetizes the end of the magnetized rotor and removes the rotor by a manipulator.

[0040] See also Figure 3 , Figure 4 , the turntable structure 20 also includes a plurality of tray structures 22 arranged on the turntable 21, and a turntable driving mechanism (not shown) arranged on the bottom surface of the turntable 21 for driving the turntable 21 to rotate. The turntable 21 is rotatably mounted on the top surface of the machine table 11 and is provided with a preset height. A plurality of through-holes 211 are provided along a circular line on the top surface of the turntable 21 adjacent to the outer circumference. The number of through-holes 211 corresponds to the number of set processing stations. The rotor magnetizing device shown in this embodiment is provided with four processing stations. The four through-holes 211 corresponding to the four stations on the turntable 21 are evenly spaced and distributed in four directions. The turntable driving mechanism is mounted on the top surface of the machine table 11, supports the center of the turntable 21, and can drive the turntable 21 to rotate according to the required angle, such as Figure 3 Counterclockwise O direction as shown.

[0041] The tray structure 22 is arranged corresponding to the through hole 211, and is used to carry and fix the rotor; the tray structure 22 includes a tray 221 and a pusher 222, the tray 221 is slidably arranged on the top surface of the turntable 21, the tray 221 is connected to one end of the pusher 222, and is pushed to slide on the top surface of the turntable 21 by the pusher 222, a bearing hole 2211 is formed in the center of the tray 221, and a notch 2212 is formed on the outer periphery of the tray 221 and is connected to the bearing hole 2211, and the tray 2 When the tray 21 slides to the processing station, the bearing hole 2211 is aligned with the through hole 211, and the rotor can be received, that is, the end of the rotor is inserted into the bearing hole 2211, and the tray 221 supports the main section of the rotor; when the tray 221 slides away from the processing station, the bearing hole 2211 and the through hole 211 are staggered, and the tray 221 is disengaged from the rotor at the notch 2212, and the tray 221 is separated from the support for the rotor; preferably, the pusher 222 is a cylinder, and the tray 221 is connected to the piston end of the cylinder. Further, the tray structure 22 includes a slide rail 223, which is installed on the top surface of the turntable 21 and extends to the corresponding through hole 211, and the tray 221 is installed on the slide rail 223, and is guided to slide by the slide rail 223.

[0042] The rotor magnetizing device includes a loading and unloading station structure corresponding to the loading and unloading integrated station, and the loading and unloading station structure includes a material receiving mechanism 30 located below the turntable 21, see Figure 5 The material receiving mechanism 30 includes a fixed seat 31, a material receiving barrel 32 and a lifting drive 33. The fixed seat 31 is fixedly mounted on the top surface of the machine 11 and is located below the turntable 21. The material receiving barrel 32 is movably mounted on the fixed seat 31 and is driven to move up and down by the lifting drive 33. It can be understood that the lifting drive 33 is preferably a cylinder. Further, the fixed seat 31 includes a support rod 311, a top plate 312, a guide column 314 fixedly connected to the bottom surface of the top plate 312, a mounting plate 315 fixedly connected to the bottom surface of the guide column 314, and a lifting plate 316 slidably mounted on the guide column 314; the support rod 311 is fixedly erected on the top surface of the machine 11 to support the top plate 312. The top plate 312 is provided with a through hole 3121 for the material receiving barrel 32 to pass through. The lifting drive member 33 is fixedly mounted on the bottom surface of the mounting plate 315, and is used to drive the lifting plate 316 to rise and fall. The lifting drive member 33 adopts a cylinder, and its piston rod passes upward through the mounting plate 315 and is connected to the lifting plate 316, so as to drive the lifting plate 316 to rise and fall along the guide column 314. The receiving barrel 32 is used to receive the rotor, and the end of the rotor can be inserted into the receiving barrel 32. The outer diameter of the receiving barrel 32 is smaller than the aperture of the through hole 211 of the turntable 21 and the aperture of the bearing hole 2211 of the tray 221; the receiving barrel 32 is rotatably mounted on the lifting plate 316, and rises and falls together with the lifting of the lifting plate 316. Furthermore, the receiving mechanism 30 includes a monitoring member 317 arranged on the top surface of the top plate 312 to monitor the lifting height of the receiving barrel 32.

[0043] When the rotor is loaded, the receiving barrel 32 rises and passes through the through hole 211 of the turntable 21 and the bearing hole 2211 of the tray 221 to receive the rotor. The end of the rotor is inserted into the receiving barrel 32. The receiving barrel 32 begins to descend after receiving the rotor. After descending to a certain height, the main body of the rotor will be carried on the tray 221, and the rotor will be supported by the tray 221. Then the turntable 21 rotates, which will drive the rotor to the next station, namely the magnetization station.

[0044] Furthermore, the material receiving mechanism 30 includes a rotor driving mechanism 34 for driving the rotor to rotate and adjusting the direction of the rotor. The rotor driving mechanism 34 includes a belt rotating motor 341 and a conveyor belt structure. The belt rotating motor 341 is fixedly mounted on the bottom surface of the lifting plate 316. The output shaft of the belt rotating motor 341 extends upward and is connected to the material receiving barrel 32 through the conveyor belt structure. Thus, the output shaft of the belt rotating motor 341 rotates, which drives the material receiving barrel 32 to rotate, and then drives the rotor to rotate, so as to adjust the rotor angle, that is, adjust the peripheral direction position.

[0045] See also Figure 6-Figure 8 The loading and unloading station structure includes a detection mechanism 40 located above the turntable 21. The detection mechanism 40 is used to detect the height and orientation of the rotor. The detection mechanism 40 includes a lifting guide seat 42, a transverse guide seat 43, a height measuring unit 44 and a direction measuring unit 45. The lifting guide seat 42 is installed on the frame 12, including a fixed plate 421 and a lifting slide 422. The fixed plate 421 is fixedly installed on the frame 12, and the lifting slide 422 can be lifted and lowered on the fixed plate 421. It can be understood that a track and a lifting drive mechanism are arranged between the fixed plate 421 and the lifting slide 422. The track is used to guide the lifting slide 422 to lift and slide. The lifting drive mechanism is used to drive the lifting slide 422 to lift relative to the fixed plate 421. In this embodiment, the lifting drive mechanism preferably adopts a screw drive structure. The screw motor is installed on the fixed plate 421. The lifting slide 422 is equipped with a screw sleeve that is sleeved on the screw of the screw motor. The lifting slide 422 is driven to lift and lower by the rotation of the screw.

[0046] The transverse guide seat 43 includes a fixed seat 431 and a transverse plate 432. The fixed seat 431 is fixedly connected to the lifting slide 422, and is driven to rise and fall by the lifting slide 422. The transverse plate 432 can be installed on the fixed seat 431 in a transverse manner, and the transverse direction is perpendicular to the lifting direction. The height measuring unit 44 includes a height measuring sensor, which is installed on the transverse plate 432, and its sensing head is vertically downward to detect the height of the rotor carried on the tray 221; preferably, the height measuring sensor adopts a contact sensor, including a contact rod 441 extending downward. During detection, the transverse plate 432 moves horizontally to drive the height measuring sensor to be located above the rotor, and then the lifting slide 422 moves downward. When the contact rod 441 contacts the end face of the rotor, it is triggered to detect the height of the rotor, and the length of the rotor main section and the length of the rotor end can be detected.

[0047] The direction finding unit 45 is used to detect the orientation position of the rotor's circumferential surface to determine whether the rotor's circumferential surface is accurately at the required orientation angle. If it is not accurately oriented, it is necessary to start the rotor drive mechanism 34 to drive the rotor to rotate. The direction finding unit 45 is installed on the transverse plate 432. It uses a sensor with a sensing head facing the horizontal direction to sense the corresponding sensing position on the rotor's circumferential surface. In this embodiment, the direction finding unit 45 uses a signal receiving sensor, which transmits a signal to the rotor's circumferential surface, and the circumferential surface reflects the signal back to the direction finding unit 45 accordingly, so as to confirm whether the rotor is in the corresponding circumferential surface orientation position. Specifically, an axially extending detection groove (which can be an assembly groove or a process groove) is provided on the circumferential surface of the rotor. The signal sent by the direction finding unit 45 to the corresponding detection groove can confirm that the circumferential surface orientation of the rotor is accurate, otherwise the rotor needs to be driven to rotate to the corresponding precise position.

[0048] See also Figure 9-Figure 15 The rotor magnetizing device includes a magnetizing station structure corresponding to the magnetizing station. The magnetizing station structure includes a magnetizing box 50 and a rotor positioning mechanism. The magnetizing box 50 is a magnetizing device, which is fixed on the machine table 11 and located on the bottom surface of the turntable 21. It has a processing channel that runs through the top and bottom, so that the rotor can rise or fall to a preset position in the processing channel, and the rotor is magnetized. The magnetic flux of the rotor is detected after magnetization. The magnetizing box 50 can be purchased directly, and its structure is not described here. In the present invention, two adjacent magnetizing stations are provided, which mainly serve as a preparation, because the replacement of the magnetizing box 50 is more troublesome. Two specifications of rotors can also be placed at intervals, or the rotor of the same specification can be accelerated to run at a beat. In this way, each time the rotor rotates 90 degrees, the rotor needs to be magnetized when it rotates to the corresponding position, which can improve production efficiency.

[0049] The rotor positioning mechanism is used to position the rotor at an angle in the magnetizing station to ensure that the rotor magnetizing position is accurate. The rotor positioning mechanism includes a lifting mechanism 60 and a pressing mechanism 70. The lifting mechanism 60 is installed on the machine platform 11 and is used to lift the rotor and position the rotor. The pressing mechanism 70 is installed on the frame 12 and is used to drive the rotor to rotate and press the rotor. The lifting mechanism 60 cooperates with the pressing mechanism 70 to position the rotor and lift the rotor to a desired position in the magnetizing box 50.

[0050] The lifting mechanism 60 includes a fixed frame 61, a driving cylinder 62, a lifting plate 63 and a receiving tube structure 64. The fixed frame 61 is fixedly connected to the machine 11. The fixed frame 61 includes a fixed plate 611 and a plurality of fixed columns 612 erected on the fixed plate 611. The top of the fixed column 612 is fixedly connected to the bottom surface of the table panel of the machine 11, so that the fixed plate 611 is fixedly and parallelly installed below the table panel. The driving cylinder 62 is fixedly erected on the fixed plate 611. The cylinder body of the driving cylinder 62 passes through the table panel of the machine 11 upward. The piston rod of the driving cylinder 62 extends downward through the fixed plate 611 and connects to the lifting plate 63, driving the lifting plate 63 to rise and fall. The driving cylinder 62 is preferably a cylinder.

[0051] The receiving tube structure 64 includes a shaft tube 641 and a positioning clamping structure 642 formed at the top end of the shaft tube 641. The shaft tube 641 is fixed on the lifting plate 63 and passes through the fixed plate 611 upward. The positioning clamping structure 642 includes a slide bar 6421 and a positioning sensor for sensing the position of the slide bar. The slide bar 6421 is axially and elastically installed on the inner wall surface of the shaft tube 641. When the rotor is inserted into the top end of the shaft tube 641, the end of the rotor presses the slide bar 6421 downward. When the positioning groove on the rotor is aligned with the slide bar 6421, the slide bar 6421 will move upward and bounce into the positioning groove of the rotor. The positioning sensor is installed on the shaft tube 641 to monitor the position of the slide bar 6421 and correspondingly send a sensing signal of positioning.

[0052] When the lifting mechanism 60 receives the rotor, the driving cylinder 62 drives the lifting plate 63 to rise, thereby driving the shaft cylinder 641 to rise. The shaft cylinder 641 rises and passes through the through hole 211 of the turntable 21 and the bearing hole 2211 of the tray 221 to receive the rotor. The end face of the rotor is pressed against the top end face of the shaft cylinder 641. At the same time, the end of the rotor is inserted into the shaft cylinder 641, and the end of the rotor will press the slide bar 6421 downward, that is, the slide bar 6421 is elastically compressed.

[0053] The pressing mechanism 70 includes a lifting assembly 71, a driving mechanism 72 and a crimping cylinder 73. The lifting assembly 71 includes a guide plate 711, a sliding plate 712 and a sliding driving member 713. The guide plate 711 is installed on the frame 12. The sliding plate 712 can be lifted and lowered on the guide plate 711. The sliding driving member 713 is used to drive the sliding plate 712 to slide. The sliding driving member 713 can use a motor screw rod to drive the sliding plate 712 to rise and fall. The driving mechanism 72 includes a driving motor 721 and a transmission belt 722. The driving motor 721 is fixedly installed on the sliding plate 712. The output shaft of the driving motor 721 is connected to the crimping cylinder 73 through the transmission belt 722, thereby driving the crimping cylinder 73 to rotate.

[0054] After the rotor is installed on the lifting mechanism 60, the sliding drive member 713 of the pressing mechanism 70 drives the sliding plate 712 to move downward, so that the crimping tube 73 presses against the top of the rotor, and then the motor 721 is driven to drive the crimping tube 73 to rotate, which can drive the rotor to rotate. When the rotor rotates until the rotor's clamping groove is aligned with the slide bar 6421, the slide bar 6421 falls into the rotor's clamping groove to achieve accurate positioning of the rotor's direction. At this time, the rotor is still at the reference height position of the tray 221, and then the push member 222 pushes the tray 221 to slide away, and the tray 221 is disengaged from the rotor at the notch 2212, and the tray 221 is separated from the support for the rotor; the rotor is completely supported on the lifting mechanism 60.

[0055] The sliding drive member 713 of the pressing mechanism 70 drives the sliding plate 712 to move downward, thereby driving the rotor to move downward into the magnetizing box 50. The driving cylinder 62 of the lifting mechanism 60 provides a supporting force to maintain balance. The downward stroke of the pressing mechanism 70 is calculated by the height of the rotor measured by the height measuring unit 44, thereby ensuring the precise height position in the magnetizing box 50. In this way, precise magnetization of the rotor is achieved by ensuring the direction and height of the rotor in the magnetizing box 50.

[0056] After magnetization, the lifting mechanism 60 and the pressing mechanism 70 are raised to lift the rotor to the position of the tray 221, and the pushing member 222 pushes the tray 221 to slide until the bearing hole 2211 is aligned with the through hole 211, so as to receive the rotor. Then, the shaft cylinder 641 of the lifting mechanism 60 is lowered and the crimping cylinder 73 of the pressing mechanism 70 is raised and separated from the rotor, so that the rotor can be rotated to the surface magnetic detection station through the turntable.

[0057] See also Figure 16-Figure 17The rotor magnetizing device includes a surface magnetic detection station structure corresponding to the surface magnetic detection station. The surface magnetic detection station structure includes a support assembly 91 and a surface magnetic detection assembly 92 installed on one side of the support assembly 91. The support assembly 91 includes a receiving seat and an upper abutment seat. The receiving seat can adopt the material receiving mechanism 30. The upper abutment seat includes a guide seat 911 and a lifting platform 912 installed on the guide seat 911 and can be lifted and slid. The receiving seat and the lifting platform 912 cooperate to clamp the rotor and lift it to a preset position, and the rotor can rotate under the action of the receiving seat. The surface magnetic detection assembly 92 can be lifted and lowered on one side of the support assembly 91, and is used to detect the magnetic steel and magnetic steel saturation of the rotor. During the surface magnetic detection, the rotor rotates, and the surface magnetic detection assembly moves up and down to achieve full detection of the rotor surface. The specific structure will not be elaborated in detail in the specific implementation of the present invention.

[0058] The rotor magnetizing device also includes a demagnetization mechanism 80, which is used to demagnetize the end of the rotor; the demagnetization mechanism 80 is installed on the integrated loading and unloading station, and the demagnetization mechanism 80 includes a demagnetization cover 81 and a demagnetization detection member 82. The demagnetization cover 81 is installed on the lifting slide 422, and the lifting and lowering of the lifting slide 422 drives the demagnetization cover 81 to move along the axial direction of the rotor to achieve demagnetization of the rotor end. The demagnetization cover 81 has a demagnetization channel 811 for demagnetizing the rotor end after being inserted into the rotor end. The demagnetization cover is installed on the lifting slide 422. In this embodiment, the lifting slide 422 has a horizontal section, and the demagnetization cover is installed on the horizontal section. A through hole is formed on the horizontal section and is correspondingly connected to the demagnetization channel 811. When demagnetizing the rotor end, the lifting slide 422 drives the demagnetization cover to be sleeved on the end of the rotor to demagnetize the rotor end.

[0059] During demagnetization, the rotor is located at the integrated loading and unloading station, and the direction finding unit 45 is started to detect the circumferential direction of the rotor to determine whether the circumferential surface of the rotor is accurately at the required demagnetization angle. If it is not accurately at the required demagnetization angle, the rotor driving mechanism 49 is started to drive the rotor to rotate and adjust the circumferential direction of the rotor; the required descending stroke of the demagnetization cover 81 is calculated according to the height of the rotor detected by the height measuring unit 44; the demagnetization cover 81 is lowered and sleeved to the top end of the rotor to demagnetize the top end of the rotor. After the demagnetization is completed, the demagnetization cover 81 is closed;

[0060] The demagnetization detection component 82 is used to detect the demagnetization amount of the rotor end. If the rotor end meets the demagnetization requirements, it is qualified, otherwise the demagnetization is unqualified. The demagnetization detection component 82 is installed on the transverse plate 432 and has a detection rod. The detection rod is arranged horizontally, and the detection head of the detection rod faces the circumferential surface of the rotor to detect the magnetic amount of the circumferential surface of the rotor end. During the detection, the demagnetization detection component 82 moves horizontally to the detection distance corresponding to the rotor surface through the transverse plate 432 to accurately detect the demagnetization effect of the rotor end. The demagnetization detection component 82 detects the demagnetization amount of the rotor end. If the rotor end meets the demagnetization requirements, it is qualified, otherwise the demagnetization cover 81 needs to be re-demagnetized until it is qualified.

[0061] The magnetizing method of the rotor magnetizing device provided by the present invention has the following specific process:

[0062] A. The turntable rotates to the loading and unloading integrated station, the rotor is loaded, the receiving mechanism 30 receives the rotor and places the rotor on the tray structure 22, specifically, the receiving cylinder 32 of the receiving mechanism 30 rises to receive the rotor, then the receiving cylinder 32 descends, and the tray 221 supports the rotor; the detection mechanism 40 detects the height of the rotor;

[0063] B. The turntable 21 rotates to send the rotor to the magnetization station. The lifting mechanism 60 lifts the rotor and positions the rotor to determine its orientation. According to the height of the rotor detected by the height measuring unit 44, the required descending stroke of the pressing mechanism 70 is calculated. The pressing mechanism 70 cooperates with the lifting mechanism 60 to descend and lower the rotor to the corresponding height in the magnetization box 50. After magnetization, the lifting mechanism 60 and the pressing mechanism 70 rise to lift the rotor to the position of the tray 221. The rotor is placed on the tray 221, and the lifting mechanism 60 and the pressing mechanism 70 are separated from the rotor.

[0064] C. The turntable 21 rotates to send the rotor to the surface magnetic detection station for surface magnetic detection of the rotor;

[0065] D. The turntable 21 rotates to send the rotor to the integrated loading and unloading station. The receiving mechanism 30 rises and receives the rotor to a preset height. The direction finding unit 45 is started to detect the circumferential direction of the rotor. The receiving barrel 32 of the receiving mechanism 30 rotates to drive the rotor to rotate, ensuring that the rotor is oriented accurately. The demagnetization cover 81 is started, and the demagnetization cover 81 is lowered and sleeved to the top end of the rotor to demagnetize the top end of the rotor. After the demagnetization is completed, the demagnetization cover 81 rises and moves out of the top end of the rotor to remove the rotor.

[0066] The rotor magnetizing device provided by the present invention detects the height of the rotor at the loading and unloading integrated station, and then the magnetizing station performs a corresponding displacement according to the detected height to enter the magnetizing box, and the lifting mechanism cooperates with the pressing mechanism to ensure the direction and height of the rotor, so that the rotor magnetization position is accurate, and the height of the rotor during demagnetization is also ensured by the same token, and a direction finding unit is arranged at the loading and unloading integrated station, so that the circumferential direction of the rotor end during demagnetization can be detected accurately, and the demagnetization position of the rotor is accurate; in addition, the rotor magnetizing device of the present invention integrates the functions of the loading station, the demagnetization station, and the unloading station in one station, which greatly simplifies the structure of the device.

[0067] The above-described embodiments only express the implementation methods of the present invention, but they cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A rotor magnetizing device, comprising a machine base (10) and a turntable structure (20), wherein the machine base (10) comprises a machine platform (11) and a frame (12) mounted on the machine platform (11), the turntable structure (20) is mounted on the machine platform (11), and comprises a turntable (21) and a tray structure (22) arranged on the turntable (21), a plurality of processing stations are arranged around the turntable (20) on the machine platform (11), and the rotor on the turntable (21) is driven to enter each processing station in sequence by the rotation of the turntable (21), characterized in that: The processing stations include loading and unloading integrated stations, magnetizing stations and surface magnetic detection stations; The loading and unloading integrated station is provided with a receiving mechanism (30) and a detection mechanism (40), wherein the receiving mechanism (30) is used to receive the rotor and transfer it to the tray structure (22); the detection mechanism (40) comprises a height measuring unit (44) and a direction measuring unit (45), wherein the height measuring unit (44) is used to detect the height of the rotor after loading, and the direction measuring unit (45) is used to detect the circumferential direction position of the rotor; The integrated loading and unloading station is also provided with a demagnetization mechanism (80), and the demagnetization mechanism (80) includes a demagnetization cover (81) for demagnetizing the end of the magnetized rotor; The magnetizing station is provided with a magnetizing box (50) and a rotor positioning mechanism, wherein the rotor positioning mechanism comprises a lifting mechanism (60) and a pressing mechanism (70), wherein the lifting mechanism (60) is mounted on the machine platform (11) and is used to lift the rotor and position the rotor at a corresponding angle, and the pressing mechanism (70) is mounted on the frame (12) and is used to drive the rotor to rotate and press the rotor downward, wherein the lifting mechanism (60) cooperates with the pressing mechanism (70) to position the rotor in a certain direction and lift the rotor to a desired position in the magnetizing box (50); the magnetizing box (50) magnetizes the rotor and detects the magnetic flux after magnetization; The surface magnetic detection station is provided with a support component (91) and a surface magnetic detection component (92), which support the two ends of the rotor and lift them up and down to a preset position. The surface magnetic detection component (92) can be installed on one side of the support component (91) in a liftable manner to perform surface magnetic detection on the rotor.

2. The rotor magnetizing device according to claim 1, characterized in that: The top surface of the turntable (21) is provided with perforations (211) corresponding to the number of processing stations along a circular line, and the tray structure (22) is arranged corresponding to the perforations (211). The tray structure (22) comprises a tray (221) and a pushing member (222) for pushing the tray (221) to slide. The tray (221) is slidably arranged on the top surface of the turntable (21), a bearing hole (2211) is formed in the center of the tray (221), and a notch (2212) is formed on the periphery of the tray (221) and is connected to the bearing hole (2211).

3. The rotor magnetizing device according to claim 2, characterized in that: The material receiving mechanism (30) comprises a material receiving barrel (32), a lifting drive member (33) and a rotor driving mechanism (34); the material receiving barrel (32) is installed on the machine platform (11) in a liftable manner and is driven to move up and down by the lifting drive member (33); the material receiving barrel (32) moves up and passes through the through hole (211) of the turntable (21) and the bearing hole (2211) of the tray (221) to receive the rotor; and the rotor driving mechanism (34) is used to drive the rotor to rotate.

4. The rotor magnetizing device according to claim 1, characterized in that: The detection mechanism (40) comprises a lifting guide seat (42) and a transverse guide seat (43); the lifting guide seat (42) comprises a lifting slide plate (422) which is installed on the frame (12) in a lifting and sliding manner; the transverse guide seat (43) comprises a transverse plate (432) which is installed on the lifting slide plate (422) in a transverse manner; the height measuring unit (44) and the direction measuring unit (45) are both installed on the transverse plate (432); the sensing head of the height measuring unit (44) is vertically downward, and the sensing head of the direction measuring unit (45) is facing the horizontal direction.

5. The rotor magnetizing device according to claim 4, characterized in that: The demagnetization mechanism (80) comprises a demagnetization cover (81) and a demagnetization detection member (82); the demagnetization cover (81) is mounted on a lifting slide plate (422); the lifting of the lifting slide plate (422) drives the demagnetization cover (81) to rise and fall; the demagnetization detection member (82) is mounted on a transverse plate (432) and has a detection rod, which is arranged transversely.

6. The rotor magnetizing device according to claim 5, characterized in that: The demagnetizing cover (81) is provided with a demagnetizing channel (811) for demagnetizing the rotor end after being inserted into the rotor end. The lifting slide plate (422) has a horizontal section, and the demagnetizing cover (81) is installed on the horizontal section. The horizontal section is correspondingly formed with a through hole correspondingly connected to the demagnetizing channel (811).

7. The rotor magnetizing device according to claim 1, characterized in that: The lifting mechanism (60) comprises a fixed frame (61), a driving cylinder (62), a lifting plate (63) and a receiving tube structure (64); the fixed frame (61) is fixedly connected to the machine platform (11); the fixed frame (61) comprises a fixed plate (611) and a plurality of fixed columns (612) erected on the fixed plate (611); the top ends of the fixed columns (612) are fixedly connected to the bottom surface of the table panel of the machine platform (11); the driving cylinder (62) is fixedly erected on the fixed plate (611); the piston rod of the driving cylinder (62) extends downward, passes through the fixed plate (611) and is connected to the lifting plate (63); the receiving tube structure (64) comprises a shaft tube (641); the shaft tube (641) is fixedly arranged on the lifting plate (63) and passes through the fixed plate (611) upward.

8. The rotor magnetizing device according to claim 7, characterized in that: The receiving tube structure (64) includes a positioning clamping structure (642) formed on the top of the shaft tube (641), and the positioning clamping structure (642) includes a slide bar (6421) and a positioning sensor for sensing the position of the slide bar. The slide bar (6421) is axially and elastically mounted on the inner wall surface of the shaft tube.

9. The rotor magnetizing device according to claim 1, characterized in that: The pressing mechanism (70) comprises a lifting assembly (71), a driving mechanism (72) and a crimping cylinder (73); the lifting assembly (71) comprises a sliding plate (712) which is installed on the frame (12) in a liftable manner; the crimping cylinder (73) is rotatably installed on the sliding plate (712); the driving mechanism (72) comprises a driving motor (721) and a transmission belt (722); the driving motor (721) is fixedly installed on the sliding plate (712); and the output shaft of the driving motor (721) is connected to the crimping cylinder (73) via the transmission belt (722).

10. A magnetizing method for a rotor magnetizing device according to any one of claims 1 to 9, characterized in that: The specific process is as follows: A. The turntable is turned to the loading and unloading integrated station, the rotor is loaded, the receiving mechanism 30 receives the rotor and places the rotor on the tray structure (22); the detection mechanism 40 detects the height of the rotor; B. The turntable rotates to the magnetizing station, the lifting mechanism (60) lifts the rotor and positions the rotor to determine its orientation, and the required descending stroke of the pressing mechanism (70) is calculated according to the height of the rotor detected by the height measuring unit (44), and the pressing mechanism (70) presses the rotor down to the corresponding height in the magnetizing box (50); after magnetization, the lifting mechanism (60) and the pressing mechanism (70) rise, and lift the rotor to the position of the tray structure (22), and the rotor is received on the tray structure (22), and the lifting mechanism (60) and the pressing mechanism (70) are separated from the rotor; C. The turntable (21) is turned to the surface magnetic detection station to perform surface magnetic detection on the rotor; D. The turntable (21) is rotated to the loading and unloading integrated station, the receiving mechanism (30) rises and receives the rotor to a preset height, the direction finding unit (45) is started, and the circumferential direction position of the rotor is detected to ensure that the rotor is accurately oriented; the demagnetization mechanism (80) is started, and the demagnetization cover (81) is lowered and sleeved on the top end of the rotor to demagnetize the top end of the rotor. After the demagnetization is completed, the demagnetization cover (81) rises and moves out of the top end of the rotor to remove the rotor.

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