Magnetizing and surface magnetic detection all-in-one machine for motor rotor

Abstract

The invention discloses a magnetizing and surface magnetic detection all-in-one machine for a motor rotor. The magnetizing and surface magnetic detection all-in-one machine comprises a workbench; a working position is arranged on the working table and is used for placing a magnetizing coil assembly; a rotor jacking device is further installed at the position, corresponding to the working position, of the bottom of the workbench, and the rotor jacking device partially penetrates through the magnetizing coil assembly. A downward pressing device is further installed at the position, corresponding to the working position, of the top of the workbench. A supporting frame is installed at the position, close to the working position, of the top of the workbench, and a surface magnetic detection device and an appearance detection device are further installed on the supporting frame. The magnetizing and surface magnetic detection functions are integrated, the occupied area of equipment is reduced, the purchase and maintenance cost of the equipment is reduced, meanwhile, the magnetizing and detection processes can be seamlessly connected through the integrated design, the material carrying and waiting time in the intermediate link is shortened, and the production efficiency and economic benefits are further improved.

Description

Technical Field

[0001] The present invention relates to the field of automation technology, and particularly to an integrated machine for magnetizing and surface magnetic field detecting of a motor rotor. Background Art

[0002] With the rapid development of the new energy vehicle industry, as one of the core components of new energy vehicles, the performance and reliability of motors have received increasing attention. Among the motors of new energy vehicles, permanent magnet synchronous motors have become the mainstream choice due to their advantages such as high power density, high efficiency, small volume and low noise. As a key component of the permanent magnet synchronous motor, the magnetizing process of the motor rotor has a crucial impact on the overall performance and quality of the motor.

[0003] At present, for the surface magnetic field magnetization of motor rotors, manual magnetization is mainly adopted. This method has many problems: First, manual magnetization requires a large amount of time and human resources, resulting in low magnetization efficiency and being difficult to meet the needs of large-scale production; Second, the instability of manual operation easily leads to insufficient magnetization accuracy, affecting the performance and consistency of motor rotors; In addition, there may be safety hazards during the manual magnetization process, such as magnetic field leakage or equipment damage caused by improper operation.

[0004] At the same time, for the surface magnetic field detection of motor rotors, manual detection is mainly adopted, which usually requires a large amount of time and human resources, resulting in low detection efficiency. With the development of Industry 4.0 and intelligent manufacturing, the manual detection method is difficult to be seamlessly connected with the automated production line and intelligent detection system, restricting the optimization and upgrading of the production process. Summary of the Invention

[0005] The purpose of the present invention is to provide an integrated machine for magnetizing and surface magnetic field detecting of a motor rotor, which integrates the magnetizing and surface magnetic field detecting functions, reduces the floor area of the equipment, lowers the purchase and maintenance costs of the equipment. At the same time, the integrated design enables the magnetizing and detecting processes to be seamlessly connected, reducing the material handling and waiting time in the intermediate links, and further improving the production efficiency and economic benefits.

[0006] To achieve the above purpose, the following technical solutions are adopted: An integrated machine for magnetizing and surface magnetic field detecting of a motor rotor, comprising a workbench; a working position is provided on the workbench for placing a magnetizing coil assembly; a rotor lifting device is also installed at the bottom of the workbench corresponding to the working position, and the rotor lifting device partially passes through the magnetizing coil assembly; a pressing device is also installed at the top of the workbench corresponding to the working position; a support frame is installed at the top of the workbench near the working position, and a surface magnetic field detecting device and an appearance detecting device are also installed on the support frame.

[0007] Further, the pressing-down device includes a pressing-down fixed frame, a pressing-down rotating seat, a pressing-down rod, and a pressing-down pin assembly; the pressing-down fixed frame is installed on the workbench; a pressing-down driving mechanism is installed on the pressing-down fixed frame, and the pressing-down driving mechanism is also drivingly connected to a pressing-down lifting plate; a first bearing seat is installed on the pressing-down lifting plate, and an upper part and a lower part in the first bearing seat are each installed with a tapered roller bearing; the pressing-down rotating seat is arranged through the first bearing seat, and the middle part of the pressing-down rotating seat is connected to the two tapered roller bearings; the pressing-down rod is installed at the bottom of the pressing-down rotating seat, and the bottom of the pressing-down rod is in a conical structure; a top tooling seat is further connected to the bottom of the pressing-down rotating seat, and the pressing-down rod is located inside the top tooling seat; the pressing-down pin assembly is installed on the pressing-down rotating seat, and one end of the pressing-down pin assembly movably passes out from the bottom of the top tooling seat and extends outwards; a rotating driving mechanism is further installed on the pressing-down lifting plate, and the upper part of the pressing-down rotating seat is connected to the rotating driving mechanism.

[0008] Further, a first connecting seat is further connected to the bottom of the pressing-down rotating seat, and a first deep groove ball bearing, a first spacer, a first thrust ball bearing, a second spacer, and a second deep groove ball bearing are sequentially arranged from top to bottom at the bottom of the first connecting seat; the pressing-down rod is installed on the first connecting seat, and the upper part of the pressing-down rod is sequentially connected to the first deep groove ball bearing, the first spacer, the first thrust ball bearing, the second spacer, and the second deep groove ball bearing from top to bottom.

[0009] Further, the pressing-down pin assembly includes a second connecting seat; a first limiting groove is further opened at the bottom of the pressing-down rotating seat, and the second connecting seat is movably arranged in the first limiting groove; positioning pins are respectively connected to both ends of the bottom of the second connecting seat, and first jacks penetrating through to the bottom are respectively opened at the corresponding positions of the top of the top tooling seat; the two positioning pins respectively movably pass through a first jack; a first guiding rod is further connected to the top of the second connecting seat, and a second jack communicated with the first limiting groove is further opened along the axial direction in the pressing-down rotating seat; the first guiding rod is movably inserted into the second jack; a first spring is further sleeved on the outer wall of the first guiding rod, a first limiting step is further arranged on the inner wall of the second jack, and both ends of the first spring respectively abut against the bottom of the first limiting step and the top of the second connecting seat.

[0010] Further, the pressing pin assembly further includes a positioning pin and a second spring; a first accommodation groove is formed in the lower outer wall of the pressing and rotating seat, and a third jack is further formed at the bottom of the pressing and rotating seat and communicates with the first accommodation groove; the upper part of the positioning pin is movably inserted into the third jack, and a first induction block arranged in the first accommodation groove is further connected to the top of the positioning pin; a first limiting boss is arranged on the upper outer wall of the positioning pin, and a second limiting step is further arranged on the inner wall of the third jack; the second spring is sleeved on the upper part of the positioning pin, and two ends of the second spring respectively abut against the top of the first limiting boss and the bottom of the second limiting step; a fourth jack penetrating through the top to the bottom is further formed at the position corresponding to the positioning pin on the top of the upper tooling seat, and the lower part of the positioning pin is movably arranged through the fourth jack.

[0011] Further, a first connecting rod is further connected to the upper part of the first guiding rod in the horizontal direction, two first sliding holes are further formed in the outer wall of the pressing and rotating seat in the vertical direction, and the two first sliding holes are arranged oppositely; two ends of the first connecting rod are respectively movably arranged through a first sliding hole; an induction ring is further movably sleeved on the outer wall of the pressing and rotating seat, and two ends of the first connecting rod are connected to the induction ring; two oppositely arranged first brackets are further connected to the lower outer wall of the first bearing seat, and a first proximity switch is horizontally installed on each of the first brackets; one of the first proximity switches is arranged outside the induction ring, and the other first proximity switch is arranged above the induction ring; a second bracket is further connected to the lower outer wall of the first bearing seat, and a second proximity switch is horizontally installed on the second bracket; the second proximity switch is arranged on one side of the first accommodation groove.

[0012] Further, a panel is further installed on the top of the pressing and lifting plate; the upper part of the first bearing seat is installed on the panel, and the lower part of the first bearing seat penetrates through the pressing and lifting plate; a third bracket is installed on the panel, and an encoder is further installed at the bottom of the third bracket; the top of the pressing and rotating seat is connected to the output shaft of the encoder through a coupling; the rotation driving mechanism includes a fourth bracket installed on the panel, a rotation motor installed on the fourth bracket, a driving wheel installed on the output shaft of the rotation motor, a driven wheel installed on the upper part of the pressing and rotating seat, and a transmission belt wound between the driving wheel and the driven wheel; a pin base is further installed on the panel, and a translation cylinder is horizontally installed on the pin base; the output shaft of the translation cylinder is drivingly connected to a first pin; a hoop is further installed on the upper part of the pressing and rotating seat, and a pin hole is formed at the position corresponding to the first pin on the outer wall of the hoop.

[0013] Further, a first guide sleeve is installed on the workbench; the rotor jacking device includes a jacking driving mechanism installed on the workbench, a jacking plate connected to the jacking driving mechanism, a guiding fixture seat installed on the jacking plate, and a rotating bearing assembly installed on the top of the guiding fixture seat; the guiding fixture seat is arranged through the first guide sleeve, and a lower tooling seat is further installed on the top of the guiding fixture seat; the interior of the lower tooling seat is axially hollow, and the rotating bearing assembly is arranged inside the lower tooling seat; the rotating bearing assembly includes a sliding sleeve, a bearing rod, and a third spring; a second limiting groove is opened at the top of the guiding fixture seat, and the lower part of the third spring is arranged in the second limiting groove; the bottom of the sliding sleeve is connected to one end of the third spring, and a bearing assembly is further installed inside the sliding sleeve; the bearing rod is arranged inside the sliding sleeve and connected to the bearing assembly; a second limiting boss is integrally connected to the top of the bearing rod, and the second limiting boss is located above the sliding sleeve; a bearing block with a conical structure is further arranged on the top of the second limiting boss; a ring-shaped bearing rubber pad is further installed on the top of the lower tooling seat.

[0014] Further, the surface magnetic detection device includes a first Z-axis lifting mechanism installed on the top of the support frame, a first translation mechanism connected to the first Z-axis lifting mechanism, a first translation plate connected to the first translation mechanism, and a surface magnetic detection mechanism installed on the first translation plate; the surface magnetic detection mechanism includes a probe fixing plate connected to the first translation plate, a probe mounting frame connected to the bottom of the probe fixing plate, and a detection probe installed on one side of the probe mounting frame; the detection probe is arranged in the horizontal direction, and the end for detection of the detection probe is arranged towards the direction of the magnetizing coil assembly.

[0015] Further, the appearance detection device includes a detection fixing frame installed on the top of the support frame, a second Z-axis lifting mechanism installed on the detection fixing frame, a Z-axis lifting frame connected to the second Z-axis lifting mechanism, and a detection camera installed on the Z-axis lifting frame.

[0016] Adopting the above scheme, the beneficial effects of the present invention are as follows: The present invention realizes the automated operation of magnetizing and surface magnetic detection. Compared with the traditional manual magnetizing and detection methods, it greatly reduces the manual operation time and labor intensity, can quickly and continuously complete the magnetizing and detection processes of the motor rotor, significantly improves the production efficiency. At the same time, integrating the magnetizing and surface magnetic detection functions into one reduces the floor area of the equipment, lowers the equipment purchase and maintenance costs. In addition, the integrated design enables the magnetizing and detection processes to be seamlessly connected, reduces the material handling and waiting time in the intermediate links, and further improves the production efficiency and economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a structural schematic diagram of the present invention; Figure 2 The structural schematic diagram of the pressing device of the present invention; Figure 3 is Figure 2 The structural schematic diagram of the pressing drive mechanism omitted; Figure 4 The partial structural schematic diagram of the pressing device of the present invention; Figure 5 is Figure 4 The exploded view of the first perspective of Figure 6 is Figure 4 The exploded view of the second perspective of Figure 7 is Figure 4 The exploded view of the third perspective of Figure 8 The structural schematic diagram of the rotor lifting device and the workbench of the present invention; Figure 9 The exploded view of the rotor lifting device of the present invention; Figure 10 The structural schematic diagram of the surface magnetic detection device of the present invention; Figure 11 The structural schematic diagram of the appearance detection device of the present invention; Among them, the description of the attached drawing reference numerals: 1. Workbench; 2. Magnetizing coil assembly; 3. Rotor lifting device; 4. Pressing device; 5. Support frame; 6. Surface magnetic detection device; 7. Appearance detection device; 31. First guide sleeve; 32. Lifting drive mechanism; 33. Lifting plate; 34. Guide fixture base; 35. Rotary bearing assembly; 36. Lower tooling base; 41. Pressing fixed frame; 42. Pressing rotary seat; 43. Pressing rod; 44. Pressing pin assembly; 45. Pressing drive mechanism; 46. Pressing lifting plate; 47. Upper tooling base; 48. Rotary drive mechanism; 49. First connecting seat; 61. First Z-axis lifting mechanism; 62. First translation mechanism; 63. First translation plate; 64. Probe fixing plate; 65. Probe mounting bracket; 66. Detection probe; 71. Detection fixed frame; 72. Second Z-axis lifting mechanism; 73. Z-axis lifting frame; 74. Detection camera; 351. Sliding sleeve; 352. Bearing rod; 353. Third spring; 354. Second limit boss; 355. Bearing block; 356. Bearing rubber pad; 401. First connecting rod; 402. Induction ring; 403. First bracket; 404. First proximity switch; 405. Second bracket; 406. Second proximity switch; 441. Second connecting seat; 442. Positioning pin; 443. First guide rod; 444. First spring; 445. In-place pin; 446. Second spring; 447. First accommodation groove; 448. First induction block; 461. First bearing seat; 462. Panel; 463. Third bracket; 464. Encoder; 465. Coupling; 466. Tapered roller bearing; 481. Fourth bracket; 482. Rotary motor; 483. Driven wheel; 484. Transmission belt; 4621. Pin base; 4622. Translation cylinder; 4623. Hoop; 4624. Pin hole. Detailed implementation manners

[0018] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] Referring to Figures 1 to 11 As shown, the present invention provides a magnetizing and surface magnetic detection integrated machine for motor rotors. In one embodiment, it includes a workbench 1; a working position is provided on the workbench 1, and the working position is used to place the magnetizing coil assembly 2; a rotor lifting device 3 is further installed at the bottom of the workbench 1 corresponding to the working position, and a part of the rotor lifting device 3 passes through the magnetizing coil assembly 2; a pressing device 4 is further installed at the top of the workbench 1 corresponding to the working position; a support frame 5 is installed at the top of the workbench 1 near the working position, and a surface magnetic detection device 6 and an appearance detection device 7 are further installed on the support frame 5.

[0020] In this embodiment, it further includes a frame. The workbench 1 is installed inside the frame. A cabinet door is also provided on the front of the frame. A display screen, a keyboard and a mouse are also installed on the frame for the convenience of operation by the staff. A three-color indicator light is also provided on the top of the frame, and foot cups are installed at the four corners of the bottom of the frame. Two guiding grooves are also arranged in parallel at intervals along the length direction on the top of the workbench 1. The magnetizing coil assembly 2 includes a carrier plate and a magnetizing coil installed on the top of the carrier plate. Guide pins are provided at the corresponding positions on both sides of the bottom of the carrier plate and the guiding grooves. The guide pins are inserted into the guiding grooves. The operator can push the carrier plate to push the magnetizing coil to the working position. During operation, first, select the corresponding magnetizing coil assembly 2 according to the type of the motor rotor to be magnetized. Then, the operator pushes the magnetizing coil assembly 2 to the working position (when pushing the carrier plate, it can be guided by the guide pins and the guiding grooves). Subsequently, place the electronic rotor to be detected on the rotor lifting device 3, and the pressing device 4 presses down to limit the position of the rotor. Then, the rotor lifting device 3, the rotor and the pressing device 4 descend synchronously, so that the rotor is placed inside the magnetizing coil for magnetizing. After magnetizing is completed, the rotor lifting device 3, the rotor and the pressing device 4 rise synchronously, so that the rotor rises from inside the magnetizing coil to a predetermined detection position. Finally, the surface magnetic detection device 6 and the appearance detection device 7 detect the surface magnetism and the surface appearance of the rotor.

[0021] In one embodiment, the pressing device 4 includes a pressing fixed frame 41, a pressing rotating seat 42, a pressing rod 43, and a pressing pin assembly 44. The pressing fixed frame 41 is installed on the workbench 1. A pressing driving mechanism 45 is installed on the pressing fixed frame 41, and the pressing driving mechanism 45 is also drivingly connected to a pressing lifting plate 46. A first bearing seat 461 is installed on the pressing lifting plate 46, and an upper and a lower tapered roller bearing 466 are installed in the first bearing seat 461 respectively. The pressing rotating seat 42 is arranged through the first bearing seat 461, and the middle part of the pressing rotating seat 42 is connected to the two tapered roller bearings 466. The pressing rod 43 is installed at the bottom of the pressing rotating seat 42, and the bottom of the pressing rod 43 is of a conical structure. An upper tooling seat 47 is also connected to the bottom of the pressing rotating seat 42, and the pressing rod 43 is located inside the upper tooling seat 47. The pressing pin assembly 44 is installed on the pressing rotating seat 42, and one end of the pressing pin assembly 44 passes through the bottom of the upper tooling seat 47 and extends outwards movably. A rotating driving mechanism 48 is also installed on the pressing lifting plate 46, and the upper part of the pressing rotating seat 42 is connected to the rotating driving mechanism 48.

[0022] In this embodiment, a lifting guide rod is connected between each of the four bottom corners of the downward pressing fixing frame 41 and the workbench 1. A copper sleeve is installed at each of a set of diagonal corners at the top of the downward pressing lifting plate 46, and a linear bearing is installed at each of the other set of diagonal corners at the top of the downward pressing lifting plate 46. The downward pressing lifting plate 46 is slidably connected to the four lifting guide rods through two copper sleeves and two linear bearings. By installing copper sleeves and linear bearings at the diagonal corners of the downward pressing lifting plate 46, the uniformity and smoothness of the force received by the downward pressing lifting plate 46 during lifting can be ensured; the downward pressing driving mechanism 45 includes a servo motor module installed at the top of the downward pressing fixing frame 41 and a downward pressing connection seat installed at the top of the downward pressing lifting plate 46 and connected to the servo motor module. Driven by the servo motor module, the downward pressing rotating seat 42 can be driven to lift through the downward pressing connection seat and the downward pressing lifting plate 46, so that the downward pressing rod 43 presses down and limits the motor rotor; a pin hole is provided on the motor rotor. When the downward pressing rod 43 presses down the rotor, a pin finding operation will be performed first, that is, at this time, the downward pressing pin assembly 44 may not be aligned with the pin hole. At this time, the rotation driving mechanism 48 will drive the downward pressing rotating seat 42 to drive the downward pressing pin assembly 44 to rotate until the downward pressing pin assembly 44 is inserted into the pin hole to complete product positioning. At this time, when the rotation driving mechanism 48 drives the downward pressing rotating seat 42 to rotate, the motor rotor can be driven to rotate through the downward pressing pin assembly 44 to perform a return to original (return to the origin, adjust the rotor magnetization position) operation.

[0023] Further, in this embodiment, a first connection seat 49 is further connected to the bottom of the downward pressing rotating seat 42, and a first deep groove ball bearing, a first spacer, a first thrust ball bearing, a second spacer, and a second deep groove ball bearing are arranged in sequence from top to bottom at the bottom of the first connection seat 49; the downward pressing rod 43 is installed on the first connection seat 49, and the upper part of the downward pressing rod 43 is connected to the first deep groove ball bearing, the first spacer, the first thrust ball bearing, the second spacer, and the second deep groove ball bearing in sequence from top to bottom. A bearing step is provided on the outer wall of the middle part of the downward pressing rod 43, and the second deep groove ball bearing is arranged on the bearing step. The upper part of the downward pressing rod 43 is connected to the above three bearings and can rotate relative to the first connection seat 49. After the downward pressing rod 43 presses on the top of the rotor, when the downward pressing rotating seat 42 drives the motor rotor to rotate through the downward pressing pin assembly 44, the downward pressing rod 43 can rotate synchronously with the rotor relative to the bearing, avoiding generating frictional resistance to the motor rotor and thus damaging the product.

[0024] Further, in this embodiment, the downward pressing pin assembly 44 includes a second connecting seat 441; a first limiting groove is further formed at the bottom of the downward pressing rotating seat 42, and the second connecting seat 441 is movably arranged in the first limiting groove; positioning pins 442 are respectively connected to both ends of the bottom of the second connecting seat 441, and first insertion holes penetrating through to the bottom are respectively formed at the positions corresponding to the two positioning pins 442 on the top of the upper tooling seat 47; the two positioning pins 442 are respectively movably arranged through a first insertion hole; a first guiding rod 443 is further connected to the top of the second connecting seat 441, and a second insertion hole communicating with the first limiting groove is further formed along the axial direction in the downward pressing rotating seat 42; the first guiding rod 443 is movably inserted into the second insertion hole; a first spring 444 is further sleeved on the outer wall of the first guiding rod 443, a first limiting step is further arranged on the inner wall of the second insertion hole, and both ends of the first spring 444 are respectively abutted against the bottom of the first limiting step and the top of the second connecting seat 441.

[0025] When the downward pressing rotating seat 42 drives the upper tooling seat 47 to press downwards, the two positioning pins 442 will abut against the rotor. At this time, the positioning pins 442 may not be aligned with the pin holes on the rotor. Therefore, affected by the reaction force of the rotor, the positioning pins 442 will move upwards. When the positioning pins 442 move upwards, they will drive the second connecting seat 441 and the first guiding rod 443 to move upwards synchronously, and then will squeeze the first spring 444 to make it in a compressed state. Subsequently, when performing the pin finding action, the positioning pins 442 will rotate with the downward pressing rotating seat 42 until they reach the pin holes of the rotor. At this time, the positioning pins 442 will move downwards under the action of the restoring force of the first spring 444 and be inserted into the pin holes to complete the pin finding and positioning action.

[0026] Further, in this embodiment, the downward pressing pin assembly 44 further includes a positioning pin 445 and a second spring 446; a first accommodating groove 447 is formed on the outer wall of the lower part of the downward pressing rotating seat 42, and a third insertion hole communicating with the first accommodating groove 447 is further formed at the bottom of the downward pressing rotating seat 42; the upper part of the positioning pin 445 is movably inserted into the third insertion hole, and a first sensing block 448 arranged in the first accommodating groove 447 is further connected to the top of the positioning pin 445; a first limiting boss is arranged on the outer wall of the upper part of the positioning pin 445, and a second limiting step is further arranged on the inner wall of the third insertion hole; the second spring 446 is sleeved on the upper part of the positioning pin 445, and both ends of the second spring 446 are respectively abutted against the top of the first limiting boss and the bottom of the second limiting step; a fourth insertion hole penetrating through to the bottom is further formed at the position corresponding to the positioning pin 445 on the top of the upper tooling seat 47, and the lower part of the positioning pin 445 is movably arranged through the fourth insertion hole. A positioning hole is formed on the rotor. When performing the pin finding action, the positioning pin 445 will also rotate with the downward pressing rotating seat 42 until it is inserted into the positioning hole. Its working principle is similar to the above-mentioned pin finding action and will not be elaborated here.

[0027] Further, in this embodiment, a first connecting rod 401 is also connected to the upper part of the first guide rod 443 in the horizontal direction. Two first sliding holes are also formed in the outer wall of the pressing and rotating seat 42 in the vertical direction, and the two first sliding holes are arranged oppositely; both ends of the first connecting rod 401 are respectively movably arranged through a first sliding hole; an induction ring 402 is also movably sleeved on the outer wall of the pressing and rotating seat 42, and both ends of the first connecting rod 401 are connected to the induction ring 402; two oppositely arranged first brackets 403 are also connected to the lower outer wall of the first bearing seat 461, and a first proximity switch 404 is horizontally installed on each of the first brackets 403; one of the first proximity switches 404 is arranged outside the induction ring 402, and the other first proximity switch 404 is arranged above the induction ring 402; a second bracket 405 is also connected to the lower outer wall of the first bearing seat 461, and a second proximity switch 406 is also horizontally installed on the second bracket 405; the second proximity switch 406 is arranged on one side of the first accommodating groove 447.

[0028] When performing the pin-finding action, the first guide rod 443 will move up and down synchronously with the positioning pin 442. When the first guide rod 443 moves up and down, it will drive the induction ring 402 to move through the first connecting rod 401. At this time, the two first proximity switches 404 will detect the signal of the induction ring 402, and then judge whether the pin-finding is successful. For example, when the pin-finding is not performed, one of the first proximity switches 404 is located above the induction ring 402, and the other first proximity switch 404 is located on one side of the induction ring 402. Therefore, only one proximity switch detects the signal. When performing the pin-finding action, when the positioning pin 442 is not inserted into the pin hole, the first guide rod 443 will move up with the positioning pin 442. At this time, the proximity switch located above the induction ring 402 will also detect the signal. Therefore, two proximity switches detect the signal. When the positioning pin 442 is inserted into the pin hole, the first guide rod 443 descends. At this time, only one proximity switch detects the signal again. Therefore, the staff can judge whether the pin-finding action is successful according to this rule. Similarly, it can also be judged whether the positioning pin 445 is in place according to whether the second proximity switch 406 detects the signal.

[0029] In one embodiment, a panel 462 is further installed on the top of the downward pressing lifting plate 46; the upper part of the first bearing seat 461 is installed on the panel 462, and the lower part of the first bearing seat 461 passes through the downward pressing lifting plate 46; a third bracket 463 is installed on the panel 462, and an encoder 464 is further installed at the bottom of the third bracket 463; the top of the downward pressing rotating seat 42 is connected to the output shaft of the encoder 464 through a coupling 465; the rotation driving mechanism 48 includes a fourth bracket 481 installed on the panel 462, a rotating motor 482 installed on the fourth bracket 481, a driving wheel installed on the output shaft of the rotating motor 482, a driven wheel 483 installed on the upper part of the downward pressing rotating seat 42, and a transmission belt 484 wound between the driving wheel and the driven wheel 483; a pin base 4621 is further installed on the panel 462, and a translation cylinder 4622 is horizontally installed on the pin base 4621; the output shaft of the translation cylinder 4622 is drivingly connected to a first pin; a hoop 4623 is further installed on the upper part of the downward pressing rotating seat 42, and a pin hole 4624 is formed at the position corresponding to the outer wall of the hoop 4623 and the first pin.

[0030] In this embodiment, the top of the downward pressing rotating seat 42 is connected to the encoder 464, and the encoder 464 can detect the rotation state of the downward pressing rotating seat 42 in real time, which is convenient for background closed-loop control and improves the rotation accuracy; the rotation driving mechanism 48 adopts the method of a motor cooperating with a driving wheel, a transmission belt 484 and a driven wheel 483, which can ensure the stability of the rotation movement of the downward pressing rotating seat 42; when the downward pressing rotating seat 42 drives the rotor to rotate through the positioning pin 442 and performs the return action, on the one hand, it is to adjust the magnetizing position of the rotor, and on the other hand, it is necessary to align the pin hole 4624 on the hoop 4623 with the first pin. The translation cylinder 4622 drives the first pin to move, so that the first pin is inserted into the pin hole 4624, thereby limiting the downward pressing rotating seat 42 to offset the torque generated during the magnetizing of the rotor and avoid the breakage of the transmission belt 484.

[0031] In one embodiment, a first guide sleeve 31 is installed on the workbench 1; the rotor lifting device 3 includes a lifting driving mechanism 32 installed on the workbench 1, a lifting plate 33 connected to the lifting driving mechanism 32, a guide fixture base 34 installed on the lifting plate 33, and a rotary bearing assembly 35 installed on the top of the guide fixture base 34; the guide fixture base 34 is arranged through the first guide sleeve 31, and a lower tooling base 36 is also installed on the top of the guide fixture base 34; the interior of the lower tooling base 36 is axially hollow, and the rotary bearing assembly 35 is arranged inside the lower tooling base 36; the rotary bearing assembly 35 includes a sliding sleeve 351, a bearing rod 352, and a third spring 353; a second limit groove is formed at the top of the guide fixture base 34, and the lower part of the third spring 353 is arranged in the second limit groove; the bottom of the sliding sleeve 351 is connected to one end of the third spring 353, and a bearing assembly is also installed inside the sliding sleeve 351; the bearing rod 352 is arranged inside the sliding sleeve 351 and is connected to the bearing assembly (including deep groove ball bearings, thrust ball bearings, etc.); a second limit boss 354 is integrally connected to the top of the bearing rod 352, and the second limit boss 354 is located above the sliding sleeve 351; a bearing block 355 with a conical structure is arranged on the top of the second limit boss 354; a bearing rubber pad 356 with an annular structure is also installed on the top of the lower tooling base 36.

[0032] In this embodiment, the lifting driving mechanism 32 includes two lifting cylinders installed on the workbench 1. Four linear guide rods are also connected to the bottom of the workbench 1. The lifting plate 33 is connected to the linear guide rods through linear bearings. The output shaft of the lifting cylinder is connected to the top of the lifting plate 33. Driven by the lifting cylinder, the guide fixture base 34 and the rotary bearing assembly 35 can be driven to move up and down by the lifting plate 33; when the rotor is placed on the lower tooling base 36, the bottom of the rotor will be arranged on the bearing block 355 of the bearing rod 352. When the pressing rod 43 presses down the rotor, the bearing rod 352 will move downward, and then a downward pressure will be applied to the sliding sleeve 351 through the second limit boss 354, and then the third spring 353 will be compressed to buffer the downward pressure generated by the pressing rod 43 on the rotor, avoiding excessive downward pressure and damaging the rotor; at the same time, the bearing rod 352 can rotate with the rotor, avoiding generating frictional resistance to the rotor.

[0033] In one embodiment, the surface magnetic field detection device 6 includes a first Z-axis lifting mechanism 61 installed at the top of the support frame 5, a first translation mechanism 62 connected to the first Z-axis lifting mechanism 61, a first translation plate 63 connected to the first translation mechanism 62, and a surface magnetic field detection mechanism installed on the first translation plate 63; the surface magnetic field detection mechanism includes a probe fixing plate 64 connected to the first translation plate 63, a probe mounting bracket 65 connected to the bottom of the probe fixing plate 64, and a detection probe 66 installed on one side of the probe mounting bracket 65; the detection probe 66 is arranged in the horizontal direction, and the end of the detection probe 66 for detection is arranged in the direction of the magnetizing coil assembly 2.

[0034] In this embodiment, the first Z-axis lifting mechanism 61 and the first translation mechanism 62 can adopt linear modules. With their mutual cooperation, the detection probe 66 can be driven to move up and down and horizontally, so as to detect the surface magnetic field of different regions of the rotor. At the same time, in order to improve the detection efficiency, in this embodiment, there are two groups of detection probes 66; in addition, the top of the probe mounting bracket 65 is slidably connected to the bottom of the probe fixing plate 64, and a buffer spring is also provided between the end of the probe mounting bracket 65 far from the magnetizing coil and the probe fixing plate 64. When the first translation mechanism 62 drives the detection probe 66 to move excessively towards the rotor and touches the rotor, the buffer spring can buffer the extrusion force on the rotor and avoid damaging the rotor. Further, in this embodiment, the appearance detection device 7 includes a detection fixing frame 71 installed at the top of the support frame 5, a second Z-axis lifting mechanism 72 installed on the detection fixing frame 71, a Z-axis lifting frame 73 connected to the second Z-axis lifting mechanism 72, and a detection camera 74 installed on the Z-axis lifting frame 73. The second Z-axis lifting mechanism 72 adopts a cylinder drive mode and can drive the detection camera 74 to move up and down, facilitating the detection camera 74 to take pictures and detect different regions of the rotor.

[0035] In summary, by integrating the magnetizing and surface magnetic field detection functions into one, the present invention reduces the floor area of the equipment, lowers the purchase and maintenance costs of the equipment. At the same time, the integrated design enables the magnetizing and detection processes to be seamlessly connected, reducing the material handling and waiting time in the intermediate links, and further improving the production efficiency and economic benefits.

[0036] The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A magnetization and surface magnetic field detection integrated machine for a motor rotor, characterized in that, It includes a workbench; a working position is provided on the workbench, and the working position is used for placing a magnetizing coil assembly; a rotor lifting device is also installed at the bottom of the workbench corresponding to the working position, and the rotor lifting device partially passes through the magnetizing coil assembly; a pressing device is also installed at the top of the workbench corresponding to the working position; a support frame is installed at the top of the workbench near the working position, and a surface magnetic detection device and an appearance detection device are also installed on the support frame.

2. The magnetization and surface magnetic field detection integrated machine for the motor rotor according to claim 1, wherein The pressing device includes a pressing fixed frame, a pressing rotating seat, a pressing rod, and a pressing pin assembly; the pressing fixed frame is installed on the workbench; a pressing driving mechanism is installed on the pressing fixed frame, and the pressing driving mechanism is also drivingly connected to a pressing lifting plate; a first bearing seat is installed on the pressing lifting plate, and an upper part and a lower part in the first bearing seat are each installed with a tapered roller bearing; the pressing rotating seat passes through the first bearing seat, and the middle part of the pressing rotating seat is connected to the two tapered roller bearings; the pressing rod is installed at the bottom of the pressing rotating seat, and the bottom of the pressing rod is of a conical structure; a first tooling seat is also connected to the bottom of the pressing rotating seat, and the pressing rod is located in the first tooling seat; the pressing pin assembly is installed on the pressing rotating seat, and one end of the pressing pin assembly passes through the bottom of the first tooling seat and extends outwards; a rotating driving mechanism is also installed on the pressing lifting plate, and the upper part of the pressing rotating seat is connected to the rotating driving mechanism.

3. The magnetization and surface magnetic field detection integrated machine for the motor rotor according to claim 2, wherein A first connecting seat is also connected to the bottom of the pressing rotating seat, and a first deep groove ball bearing, a first spacer, a first thrust ball bearing, a second spacer, and a second deep groove ball bearing are arranged in sequence from top to bottom at the bottom of the first connecting seat; the pressing rod is installed on the first connecting seat, and the upper part of the pressing rod is sequentially connected to the first deep groove ball bearing, the first spacer, the first thrust ball bearing, the second spacer, and the second deep groove ball bearing from top to bottom.

4. The magnetization and surface magnetic field detection integrated machine for the motor rotor according to claim 2, wherein The pressing pin assembly includes a second connecting seat; a first limiting groove is also opened at the bottom of the pressing rotating seat, and the second connecting seat is movably arranged in the first limiting groove; positioning pins are respectively connected to both ends of the bottom of the second connecting seat, and first through holes penetrating to the bottom are respectively opened at the corresponding positions of the top of the first tooling seat to the two positioning pins; the two positioning pins respectively pass through a first through hole movably; a first guiding rod is also connected to the top of the second connecting seat, and a second through hole communicated with the first limiting groove is also opened along the axial direction in the pressing rotating seat; the first guiding rod is movably inserted into the second through hole; a first spring is also sleeved on the outer wall of the first guiding rod, a first limiting step is also arranged on the inner wall of the second through hole, and both ends of the first spring are respectively abutted against the bottom of the first limiting step and the top of the second connecting seat.

5. The magnetization and surface magnetic field detection integrated machine for the motor rotor according to claim 4, wherein The pressing pin assembly further includes a positioning pin and a second spring; a first accommodation groove is formed in the lower outer wall of the pressing and rotating seat, and a third insertion hole communicating with the first accommodation groove is further formed at the bottom of the pressing and rotating seat; the upper part of the positioning pin is movably inserted into the third insertion hole, and a first induction block arranged in the first accommodation groove is further connected to the top of the positioning pin; a first limiting boss is arranged on the upper outer wall of the positioning pin, and a second limiting step is further arranged on the inner wall of the third insertion hole; the second spring is sleeved on the upper part of the positioning pin, and two ends of the second spring respectively abut against the top of the first limiting boss and the bottom of the second limiting step; a fourth insertion hole penetrating through to the bottom is further formed at the position corresponding to the positioning pin on the top of the upper tooling seat, and the lower part of the positioning pin is movably arranged through the fourth insertion hole.

6. The magnetization and surface magnetic flux density detection integrated machine for the motor rotor according to claim 5, characterized in that, A first connecting rod is further connected to the upper part of the first guiding rod in the horizontal direction, and two first sliding holes are further formed in the outer wall of the pressing and rotating seat in the vertical direction, and the two first sliding holes are arranged oppositely; two ends of the first connecting rod are respectively movably arranged through a first sliding hole; an induction ring is further movably sleeved on the outer wall of the pressing and rotating seat, and two ends of the first connecting rod are connected to the induction ring; two oppositely arranged first brackets are further connected to the lower outer wall of the first bearing seat, and a first proximity switch is horizontally installed on each of the first brackets; one of the first proximity switches is arranged outside the induction ring, and the other first proximity switch is arranged above the induction ring; a second bracket is further connected to the lower outer wall of the first bearing seat, and a second proximity switch is horizontally installed on the second bracket; the second proximity switch is arranged on one side of the first accommodation groove.

7. The magnetizing and surface magnetic flux density detecting integrated machine for the motor rotor according to claim 2, wherein A panel is further installed on the top of the pressing and lifting plate; the upper part of the first bearing seat is installed on the panel, and the lower part of the first bearing seat penetrates through the pressing and lifting plate; a third bracket is installed on the panel, and an encoder is further installed at the bottom of the third bracket; the top of the pressing and rotating seat is connected to the output shaft of the encoder through a coupling; the rotation driving mechanism includes a fourth bracket installed on the panel, a rotation motor installed on the fourth bracket, a driving wheel installed on the output shaft of the rotation motor, a driven wheel installed on the upper part of the pressing and rotating seat, and a transmission belt wound between the driving wheel and the driven wheel; a pin base is further installed on the panel, and a translation cylinder is horizontally installed on the pin base; the output shaft of the translation cylinder is drivingly connected with a first pin; a hoop is further installed on the upper part of the pressing and rotating seat, and a pin hole is further formed at the position corresponding to the first pin on the outer wall of the hoop.

8. The magnetizing and surface magnetic field detecting integrated machine for the motor rotor according to claim 1, wherein A first guide sleeve is installed on the workbench; the rotor lifting device includes a lifting driving mechanism installed on the workbench, a lifting plate connected to the lifting driving mechanism, a guiding fixture seat installed on the lifting plate, and a rotating bearing assembly installed on the top of the guiding fixture seat; the guiding fixture seat is arranged through the first guide sleeve, and a lower tooling seat is further installed on the top of the guiding fixture seat; the interior of the lower tooling seat is axially hollow, and the rotating bearing assembly is arranged inside the lower tooling seat; the rotating bearing assembly includes a sliding sleeve, a bearing rod, and a third spring; a second limiting groove is formed at the top of the guiding fixture seat, and the lower part of the third spring is arranged in the second limiting groove; the bottom of the sliding sleeve is connected to one end of the third spring, and a bearing assembly is further installed inside the sliding sleeve; the bearing rod is arranged inside the sliding sleeve and connected to the bearing assembly; a second limiting boss is integrally connected to the top of the bearing rod, and the second limiting boss is located above the sliding sleeve; a bearing block with a conical structure is further provided on the top of the second limiting boss; a bearing rubber pad with an annular structure is further installed on the top of the lower tooling seat.

9. The magnetizing and surface magnetic field detecting integrated machine for the motor rotor according to claim 1, wherein The surface magnetic detection device includes a first Z-axis lifting mechanism installed on the top of the support frame, a first translation mechanism connected to the first Z-axis lifting mechanism, a first translation plate connected to the first translation mechanism, and a surface magnetic detection mechanism installed on the first translation plate; the surface magnetic detection mechanism includes a probe fixing plate connected to the first translation plate, a probe mounting frame connected to the bottom of the probe fixing plate, and a detection probe installed on one side of the probe mounting frame; the detection probe is arranged in the horizontal direction, and the end for detection of the detection probe is arranged towards the direction of the magnetizing coil assembly.

10. The magnetization and surface magnetic field detection integrated machine for the motor rotor according to claim 1, characterized in that, The appearance detection device includes a detection fixing frame installed on the top of the support frame, a second Z-axis lifting mechanism installed on the detection fixing frame, a Z-axis lifting frame connected to the second Z-axis lifting mechanism, and a detection camera installed on the Z-axis lifting frame.

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