Rapid detection tool for rotor magnetic pole

Abstract

The utility model relates to the technical field of motor rotors, in particular to a rotor magnetic pole rapid detection tool, which comprises a base, a control box, a detection table, a Hall element, a placement seat, an anti-skid gasket, a positioning sleeve, a movable groove, an elastic block, a gear ring, a gear and a driving motor, the front side of the upper end of the base is provided with a control box, the rear side of the upper end of the base is provided with a detection table, the upper end of the detection table is provided with a placement seat, the side of the placement seat is provided with a Hall element, the upper end of the placement seat is provided with an anti-skid gasket, the lower end of the placement seat is provided with a positioning sleeve, and the inner side of the positioning sleeve is provided with a movable groove. Elastic blocks are arranged on the inner sides of the movable grooves; gear rings are arranged at the lower ends of the outer sides of the positioning sleeves; according to the utility model, the lower end of the rotor is clamped and limited by using the placing seat and the plurality of elastic blocks, and the placing seat is controlled by the driving motor to rotate so as to drive the rotor to rotate, so that the N / S pole magnetic steels of the rotor alternately correspond to the Hall elements, and rapid detection of the magnetic poles of the rotor is realized.

Description

Technical Field

[0001] This utility model relates to the field of motor rotor technology, and in particular to a tooling for rapid detection of rotor magnetic poles. Background Technology

[0002] The motor rotor is the rotating component of the motor. Most motor rotors use permanent magnets, which are mainly formed by attaching permanent magnets to the surface of the rotor core or by installing permanent magnets in the mounting slot as rotor poles. The permanent magnets are mostly made of rare earth permanent magnet materials with high coercivity and high magnetic induction density, such as neodymium iron boron. The function of the permanent magnets in this rotor is to establish a sufficient magnetic field in the air gap of the motor.

[0003] Currently, in the production and processing of motor rotors, the rotor structure mostly adopts surface-bonded magnetic poles, also known as tile-shaped magnetic poles. Surface-bonded magnetic poles are rare earth permanent magnets that are radially magnetized and bonded to the outer surface of the iron core. With proper design, a square wave air gap magnetic flux density can be obtained. However, the assembly of magnets has requirements for the magnetic pole direction. In order to avoid incorrect magnetic pole assembly, it is necessary to inspect the rotor magnetic poles. If the inspection is not in place, it will lead to the scrapping of the entire rotor. Therefore, the quality inspection of the magnetic poles after assembly is particularly important.

[0004] However, existing rotor magnetic pole detection methods are usually time-consuming, labor-intensive, and inefficient, which greatly affects the production and processing speed of motor rotors. Utility Model Content

[0005] To overcome the problem that rotor magnetic pole detection is usually time-consuming, labor-intensive, and inefficient, which greatly affects the production and processing speed of motor rotors.

[0006] The technical solution of this utility model is as follows: a rotor magnetic pole rapid detection fixture, including a base, a control box, a detection platform, a Hall element, a placement seat, an anti-slip pad, a positioning sleeve, a movable groove, a spring block, a gear ring, a gear, and a drive motor; the control box is provided on the front side of the upper end of the base, the detection platform is provided on the rear side of the upper end of the base, the placement seat is provided on the upper end of the detection platform, the Hall element is provided on the side of the placement seat, the anti-slip pad is provided on the upper end of the placement seat, the positioning sleeve is provided on the lower end of the placement seat, the movable groove is provided on the inner side of the positioning sleeve, the spring block is provided on the inner side of the movable groove, the gear ring is provided on the lower end of the outer side of the positioning sleeve, the gear is provided on the side of the gear ring, and the drive motor is provided on the lower end of the gear.

[0007] Preferably, by setting up a placement seat and a positioning sleeve, it is convenient to pick up and put down the rotor; by setting up multiple spring blocks, it is convenient to clamp and center the rotor; by setting up a toothed ring and gears, it is convenient to control the rotation of the placement seat, so that the magnetic poles are quickly aligned with the Hall element; by setting up multiple Hall elements, it is convenient to detect multiple magnetic poles at one time, thereby improving the detection rate.

[0008] Preferably, the control box and the testing platform are both fixedly connected to the upper end of the base, and the upper end of the control box is equipped with control buttons and indicator lights.

[0009] Preferably, the Hall elements are arranged in a ring array, and the Hall elements are fixedly connected to the side of the upper end of the detection platform.

[0010] Preferably, the upper ends of the placement seat and the positioning sleeve are fixedly connected, and the inner sides of the positioning sleeve and the placement seat are rotatably connected by bearings.

[0011] Preferably, the movable groove and the spring block are arranged in a ring array. One end of the spring block extends to the inner side of the positioning sleeve and has a trapezoidal structure design. The other end of the spring block and the inner side of the movable groove are elastically connected by a spring, and the spring block and the inner side of the movable groove are slidably sleeved.

[0012] Preferably, the gear ring and the outer side of the positioning sleeve are fixedly connected, and the gear and the gear ring mesh with each other.

[0013] Preferably, the drive motor and the inner side of the testing platform are fixedly connected, and the output end of the drive motor and the lower end of the gear are fixedly connected.

[0014] The beneficial effects of this utility model are:

[0015] This rapid rotor magnetic pole detection fixture inserts the lower end of the rotor to be tested into the inner side of the positioning sleeve until the rotor is in contact with the upper end of the anti-slip pad. Multiple spring blocks clamp the lower end of the rotor under the action of springs, achieving clamping and limiting of the lower end of the rotor, while facilitating the removal and placement of the rotor. The drive motor drives the gear to rotate, which in turn drives the positioning sleeve and the placement seat to rotate, thereby driving the rotor to rotate. This causes the N / S pole magnets of the rotor to alternately align with the Hall element. The indicator light determines whether the magnets are misaligned, achieving rapid detection of the rotor magnetic poles in a convenient and quick manner. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of the rotor magnetic pole rapid detection tool of this utility model.

[0017] Figure 2 The diagram shown is a three-dimensional structural schematic of the testing platform of this utility model;

[0018] Figure 3 The diagram shown is a three-dimensional cross-sectional view of the testing platform of this utility model.

[0019] Figure 4 The diagram shown is a three-dimensional structural schematic of the placement base and positioning sleeve of this utility model.

[0020] Figure 5 The diagram shown is a three-dimensional cross-sectional view of the placement base and positioning sleeve of this utility model.

[0021] Explanation of reference numerals in the attached diagram: 1. Base; 2. Control box; 21. Control button; 22. Indicator light; 3. Detection platform; 4. Hall element; 5. Placement seat; 6. Anti-slip pad; 7. Positioning sleeve; 71. Bearing; 8. Movable groove; 9. Spring block; 10. Gear ring; 11. Gear; 12. Drive motor. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-5 This utility model provides an embodiment of a rotor magnetic pole rapid detection fixture, including a base 1, a control box 2, a detection platform 3, a Hall element 4, a placement seat 5, an anti-slip pad 6, a positioning sleeve 7, a movable groove 8, a spring block 9, a gear ring 10, a gear 11, and a drive motor 12; the control box 2 is arranged on the front side of the upper end of the base 1, the detection platform 3 is arranged on the rear side of the upper end of the base 1, the placement seat 5 is arranged on the upper end of the detection platform 3, the Hall element 4 is arranged on the side of the placement seat 5, the anti-slip pad 6 is arranged on the upper end of the placement seat 5, the positioning sleeve 7 is arranged on the lower end of the placement seat 5, the movable groove 8 is opened on the inner side of the positioning sleeve 7, the spring block 9 is arranged on the inner side of the movable groove 8, and the lower end of the outer side of the positioning sleeve 7 is arranged on the lower end. A gear ring 10 is provided, and a gear 11 is provided on the side of the gear ring 10. A drive motor 12 is provided at the lower end of the gear 11. By inserting the lower end of the rotor to be tested into the inner side of the positioning sleeve 7, the drive motor 12 drives the gear 11 to rotate, so that the gear ring 10 drives the positioning sleeve 7 and the rotor to rotate, so that the N / S pole magnets of the rotor alternately correspond to the Hall element 4, thereby realizing the rapid detection of the rotor magnetic poles. In this application, the control box 2 and the Hall element 4 are existing technical solutions, and the internal cavity of the control box 2 is also provided with an information processor and other structures, which are also existing technical solutions. Here, the applicant will not provide a detailed description of the control box 2 and the internal structure and components of the control box 2. The above-mentioned structures and connections are all existing technologies.

[0024] Please see Figures 1-5 In this embodiment, the control box 2 and the detection platform 3 are both fixedly connected to the upper end of the base 1. The upper end of the control box 2 is provided with a control button 21 and an indicator light 22. The Hall element 4 is arranged in a ring array. The Hall element 4 is fixedly connected to the upper side of the detection platform 3. The upper end of the placement seat 5 and the positioning sleeve 7 are fixedly connected. The inner side of the positioning sleeve 7 and the placement seat 5 are rotatably connected by a bearing 71. The movable groove 8 and the spring block 9 are both arranged in a ring array. One end of the spring block 9 extends to the inner side of the positioning sleeve 7 and has a trapezoidal structure design. The other end of the spring block 9 and the inner side of the movable groove 8 are elastically connected by a spring. The spring block 9 and the inner side of the movable groove 8 are slidably sleeved. The lower end of the rotor to be tested is inserted into the inner side of the positioning sleeve 7, so that multiple spring blocks 9 clamp the lower end of the rotor under the action of the spring until the rotor is attached to the upper end of the anti-slip pad 6, thereby achieving rapid fixation of the rotor.

[0025] Please see Figures 3-4 In this embodiment, the outer sides of the gear ring 10 and the positioning sleeve 7 are fixedly connected, the gear 11 and the gear ring 10 mesh with each other, the inner side of the drive motor 12 and the detection platform 3 are fixedly connected, and the output end of the drive motor 12 and the lower end of the gear 11 are fixedly connected. The drive motor 12 drives the gear 11 to rotate, which causes the gear ring 10 to drive the positioning sleeve 7 and the placement seat 5 to rotate, thereby driving the rotor to rotate. This causes the N / S pole magnets of the rotor to alternately correspond to the Hall element 4. Each magnet corresponds to one Hall element 4 on the detection platform 3. When the N pole magnet corresponds to the Hall element 4, the corresponding green light of the indicator light 22 lights up. When the S pole magnet corresponds to the Hall element, the corresponding red light of the indicator light 22 lights up, thereby confirming whether the magnets are misaligned and realizing rapid detection of the rotor magnetic poles.

[0026] During operation, the lower end of the rotor to be tested is inserted into the inner side of the positioning sleeve 7 until the rotor is in contact with the upper end of the anti-slip pad 6. Multiple spring blocks 9 clamp the lower end of the rotor under the action of springs. The drive motor 12 drives the gear 11 to rotate, which in turn drives the positioning sleeve 7 and the placement seat 5 to rotate, thereby driving the rotor to rotate. This causes the N / S pole magnets of the rotor to alternately correspond to the Hall element 4. Each magnet corresponds to one Hall element 4 on the detection table 3. When the N pole magnet corresponds to the Hall element 4, the corresponding green light of the indicator light 22 lights up. When the S pole magnet corresponds to the Hall element, the corresponding red light of the indicator light 22 lights up. This confirms whether the magnets are misaligned and achieves rapid detection of the rotor's magnetic poles. Afterward, the rotor can be directly removed from the upper end of the placement seat 5, and the multiple spring blocks 9 reset under the action of springs, facilitating the next round of testing.

[0027] Through the above steps, the lower end of the rotor to be tested is inserted into the inner side of the positioning sleeve 7 until the rotor is in contact with the upper end of the anti-slip pad 6. Multiple spring blocks 9 clamp the lower end of the rotor under the action of springs. The drive motor 12 drives the gear 11 to rotate, which causes the gear ring 10 to drive the positioning sleeve 7 and the rotor to rotate. This causes the N / S pole magnets of the rotor to alternately correspond to the Hall element 4. The display of the indicator light 22 confirms whether the magnets are misaligned, thus realizing the rapid detection of the rotor magnetic poles. This solves the problem that rotor magnetic pole detection is usually time-consuming, labor-intensive, and inefficient, which greatly affects the production and processing speed of motor rotors.

Claims

1. A rotor magnetic pole rapid detection fixture, comprising a base (1), characterized in that: It also includes a control box (2), a test platform (3), a Hall element (4), a placement seat (5), an anti-slip pad (6), a positioning sleeve (7), a movable groove (8), a spring block (9), a toothed ring (10), a gear (11), and a drive motor (12); the control box (2) is provided on the front side of the upper end of the base (1), the test platform (3) is provided on the rear side of the upper end of the base (1), the placement seat (5) is provided on the upper end of the test platform (3), the Hall element (4) is provided on the side of the placement seat (5), the anti-slip pad (6) is provided on the upper end of the placement seat (5), the positioning sleeve (7) is provided on the lower end of the placement seat (5), the movable groove (8) is provided on the inner side of the positioning sleeve (7), the spring block (9) is provided on the inner side of the movable groove (8), the toothed ring (10) is provided on the lower end of the outer side of the positioning sleeve (7), the gear (11) is provided on the side of the toothed ring (10), and the drive motor (12) is provided on the lower end of the gear (11).

2. The rotor magnetic pole rapid detection fixture according to claim 1, characterized in that: The control box (2) and the test platform (3) are both fixedly connected to the upper end of the base (1). The upper end of the control box (2) is equipped with a control button (21) and an indicator light (22).

3. The rotor magnetic pole rapid detection fixture according to claim 1, characterized in that: The Hall elements (4) are arranged in a ring array, and the Hall elements (4) are fixedly connected to the upper side of the detection stage (3).

4. The rotor magnetic pole rapid detection fixture according to claim 1, characterized in that: The upper ends of the placement seat (5) and the positioning sleeve (7) are fixedly connected, and the inner sides of the positioning sleeve (7) and the placement seat (5) are rotatably connected by a bearing (71).

5. The rotor magnetic pole rapid detection fixture according to claim 1, characterized in that: The movable groove (8) and the spring block (9) are arranged in a ring array. One end of the spring block (9) extends to the inner side of the positioning sleeve (7) in a trapezoidal structure design. The other end of the spring block (9) and the inner side of the movable groove (8) are elastically connected by a spring. The spring block (9) and the inner side of the movable groove (8) are slidably sleeved.

6. The rotor magnetic pole rapid detection fixture according to claim 1, characterized in that: The outer side of the gear ring (10) and the positioning sleeve (7) are fixedly connected, and the gear (11) and the gear ring (10) mesh with each other.

7. The rotor magnetic pole rapid detection fixture according to claim 1, characterized in that: The drive motor (12) is fixedly connected to the inner side of the test table (3), and the output end of the drive motor (12) is fixedly connected to the lower end of the gear (11).

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