Magnet charger and rotor positioning mechanism thereof

Abstract

The utility model provides a kind of rotor positioning mechanism of magnetizing machine, it is installed on the machine table board of magnetizing machine, including cylinder seat, rotating shaft structure and press against piece, cylinder seat is vertically set in machine table board top surface, the sliding slot of opposite axial is opened in the circumference of cylinder seat, rotating shaft structure includes lifting shaft, cross bar, elastic member and clamping pin, lifting shaft is rotatably inserted in cylinder seat, cross bar is transversely fixed in lifting shaft top end, cross bar both ends are inserted in the sliding slot of cylinder seat, elastic member is set on lifting shaft, to provide the elastic force of upward movement to lifting shaft, clamping pin is vertically set in the both ends of cross bar and is inserted with the positioning hole of rotor, press against piece is set above cylinder seat, for when clamping rotor, prevent rotor rotating with rotating shaft structure;In addition, a kind of magnetizing machine including the rotor positioning structure is also provided, the accurate positioning of rotor can be realized, and production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of magnetizer technology, and in particular to a magnetizer and its rotor positioning mechanism. Background Technology

[0002] The rotor is the core component in manufacturing industrial motors. The most commonly used rotors are shaft rotors, which have magnetic circumference on the middle section of the rotor. When it is necessary to increase the power of this type of rotor, the diameter of the rotor often needs to be increased, making the assembled motor larger and not conducive to space layout. In order to manufacture motors with high power and easy space layout, disc rotors have emerged in the industry. These are disc-shaped annular rotors with a diameter of the end face much larger than the thickness of the rotor. By magnetizing both ends of the rotor, the power of the rotor can be increased, and the circumference does not need to be magnetized. When magnetizing shaft rotors, only the ends of the rotor need to be fixed to position the rotor. However, because the end face of the disc rotor is a magnetized surface, positioning is more difficult. Utility Model Content

[0003] In view of the above, it is necessary for this utility model to provide a rotor positioning mechanism for a magnetizer that facilitates the positioning of a disc rotor.

[0004] The technical solution of this utility model is as follows:

[0005] A rotor positioning mechanism for a magnetizer is installed on the machine base plate of the magnetizer. It includes a cylinder base, a rotating shaft structure, and a pressing component. The cylinder base is erected on the top surface of the machine base plate, and the circumferential surface of the cylinder base has opposing axial sliding grooves. The rotating shaft structure includes a lifting shaft, a crossbar, an elastic element, and a locking pin. The lifting shaft is rotatably inserted into the cylinder base. The crossbar is horizontally fixed to the top end of the lifting shaft, and both ends of the crossbar extend into the sliding grooves of the cylinder base. The elastic element is sleeved on the lifting shaft to provide an upward elastic force for the lifting shaft. The locking pin is erected at both ends of the crossbar and is inserted into the positioning holes of the rotor. The pressing component is located above the cylinder base to lock the rotor during alignment and prevent the rotor from rotating together with the rotating shaft structure.

[0006] Furthermore, a drive motor is fixed to the bottom surface of the platform, and the drive motor is connected to the lifting shaft to drive the lifting shaft to rotate.

[0007] Furthermore, the rotating shaft structure includes a bushing body, which is installed inside the cylinder seat and connected to the drive motor for transmission. The lifting shaft is slidably inserted into the bushing body, and the rotation of the bushing body drives the lifting shaft to rotate.

[0008] Furthermore, a longitudinal ridge is formed on the outer peripheral surface of the lifting shaft, and a corresponding longitudinal groove is formed on the shaft hole wall of the bushing body to match the ridge, so that the lifting shaft can slide and lift within the bushing body.

[0009] Furthermore, the cylinder base includes a bottom cylinder and a top cylinder rotatably connected to the bottom cylinder. The bottom cylinder is fixed to the top surface of the machine base plate, and the top of the top cylinder is provided with a support body for supporting the rotor.

[0010] Furthermore, the top cylinder has a sliding groove axially formed on its peripheral wall, and both ends of the crossbar extend into the sliding groove to drive the top cylinder to rotate synchronously.

[0011] Furthermore, the carrier body is provided with a pin hole, and the locking pin extends out of the top surface of the carrier body through the pin hole and is inserted into the positioning hole of the rotor.

[0012] Furthermore, the positioning mechanism includes a lift mounted on the machine platform. The lift is fixed to one side of the rotating shaft structure, and a pressing component is mounted on the lift so that the lift can drive the pressing component to move up and down.

[0013] Furthermore, the pressing component includes a cylinder body and a chuck connected to the piston end of the cylinder body. The piston of the cylinder body extends downward, causing the chuck to descend and abut against the rotor, so as to fix the rotor with the chuck.

[0014] This utility model also provides a magnetizer, including a magnetizing mechanism, a magnetic detection mechanism, and the aforementioned rotor positioning mechanism mounted on a machine base plate. The magnetizing mechanism and the magnetic detection mechanism are fixed around the rotor positioning mechanism. The magnetizing mechanism is used to magnetize the rotor end face area, and the magnetic detection mechanism is used to perform surface magnetic detection on the end face area of ​​the rotor after magnetization.

[0015] Compared to existing technologies, this utility model provides a magnetization and positioning mechanism for a disc rotor. By connecting a drive motor to the rotating shaft structure, the lifting shaft drives the locking pin fixed on the crossbar to rotate relative to the rotor. The locking pin is elastically supported by an elastic element. When the locking pin aligns with the positioning hole of the rotor, it can extend into the positioning hole and lock the rotor, achieving precise positioning of the rotor during magnetization. Furthermore, by setting up a locking mechanism, which uses a liftable pressing element to cooperate with the center of the rotor's disc, the locking mechanism can lower to lock the rotor when it is necessary to prevent the rotor and the carrier from rotating together before alignment, and rise to disengage from the rotor after alignment, making locking and releasing convenient. Attached Figure Description

[0016] Figure 1 This is a three-dimensional view of a disc rotor;

[0017] Figure 2 A 3D view of the magnetizer;

[0018] Figure 3 This is a diagram of the internal structure of the magnetizer;

[0019] Figure 4 for Figure 3 Side sectional view;

[0020] Figure 5 This is a 3D view of the rotor positioning mechanism;

[0021] Figure 6 This is a cross-sectional view of the rotor positioning mechanism.

[0022] The annotations in the attached figures are explained as follows:

[0023] 100. Rotor; 101. Blank part; 102. Positioning hole; 1. Machine base plate; 2. Turntable structure; 3. Magnetizing mechanism; 4. Magnetic detection mechanism; 10. Drive motor; 20. Cylinder seat; 21. Bottom cylinder; 22. Top cylinder; 30. Bearing body; 40. Shaft structure; 41. Bushing body; 42. Lifting shaft; 43. Crossbar; 44. Elastic element; 45. Locking pin; 50. Lifting mechanism; 60. Pressing element; 61. Cylinder body; 62. Chuck. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. In the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and embodiments.

[0025] like Figure 1 As shown, a rotor 100 is provided, which has a small axial dimension and a large diameter. It is disc-shaped and can be defined as a disc rotor. The rotor 100 includes an annular disc body and several blank parts 101 evenly spaced on both ends of the disc body. The blank parts 101 can be magnetized and have magnetic properties. A bushing hole is opened at the center of the disc body for mounting the rotor 100. Opposite positioning holes 102 are opened around the outer periphery of the bushing hole at the center of the disc body to position and fix the rotor 100. Several locking holes are evenly spaced between the two positioning holes 102 along the annular surface to facilitate fixing with other components when assembling the motor.

[0026] Please see Figures 2-6 This utility model provides a magnetizer, including a machine base and a positioning mechanism installed on the machine base. The positioning mechanism is provided with a magnetizing mechanism 3 and a magnetic detection mechanism 4 around its periphery. The positioning mechanism is used to support the rotor 100 and drive the rotor 100 to rotate. The magnetizing mechanism 3 includes an upper magnetizing mechanism and a lower magnetizing mechanism. The upper and lower magnetizing mechanisms can be moved close to the end face area of ​​the rotor 100 and cooperate with the blank 101 to be magnetized on the rotor 100 to magnetize the blank 101 on the end face of the rotor. The magnetic detection mechanism 4 can be moved close to the end face of the magnetized blank 101 to perform surface magnetic detection on the blank 101.

[0027] The machine includes a machine base plate 1, on which a positioning mechanism, a magnetization mechanism 3, and a magnetic detection mechanism 4 are installed.

[0028] The positioning mechanism includes a turntable structure 2, which is installed on the top surface of the machine base plate 1. The turntable structure 2 includes a drive motor 10, a cylinder seat 20, a support body 30, and a rotating shaft structure 40. The drive motor 10 is fixed on the bottom surface of the machine base plate 1, and the cylinder seat 20 is erected on the top surface of the machine base plate 1. The cylinder seat 20 has a double-section structure, including a bottom cylinder 21 and a top cylinder 22 rotatably connected to the bottom cylinder 21. The bottom cylinder 21 is fixed on the top surface of the machine base plate 1. The support body 30 is a frustum structure with a convex shaft hole, which is fixedly sleeved on the top of the top cylinder 22 for supporting the rotor 100. It can be understood that when supporting the rotor 100, the rotor 100 is sleeved on the top of the support body 30 through the shaft hole.

[0029] The rotating shaft structure 40 is installed inside the cylinder base 20 and includes a bushing body 41, a lifting shaft 42, a crossbar 43, an elastic element 44, and a locking pin 45. The bushing body 41 is rotatably inserted into the cylinder base 20, with its bottom end extending out of the bottom surface of the machine base plate 1. The bottom end of the bushing body 41 is connected to the output shaft of the drive motor 10 through a transmission structure, such as meshing or a conveyor belt connection, so that the output shaft of the drive motor 10 rotates and drives the bushing body 41 to rotate. The lifting shaft 42 is slidably inserted into the bushing body 41, and the rotation of the bushing body 41 drives the lifting shaft 42 to rotate. For example, a longitudinal protrusion is formed on the outer peripheral surface of the lifting shaft 42, and a corresponding longitudinal groove is formed on the shaft hole wall of the bushing body 41 to match the protrusion. In this embodiment, the lifting shaft 42 has upper and lower sections. The lower section is inserted into the shaft hole of the bushing body 41, and the upper section is a hollow section that is detachably connected to the lower section, such as by screwing.

[0030] The crossbar 43 is fixed laterally to the top of the lifting shaft 42, and both ends of the crossbar 43 extend out of the peripheral wall of the top cylinder 22, and can slide axially along the peripheral wall. Understandably, the peripheral wall of the top cylinder 22 is provided with a sliding groove along the axial direction so that the crossbar 43 can be raised and lowered relative to the top cylinder 22 in the axial direction.

[0031] The elastic element 44 is sleeved on the lifting shaft 42 to provide an upward elastic force for the lifting shaft 42. In this embodiment, the elastic element 44 is a compression spring. A flange is formed on the outer periphery of the lower section of the lifting shaft 42, and the elastic element 44 elastically presses against the flange and the top surface of the bushing body 41. In this way, the elastic element 44 causes the two ends of the crossbar 43 to elastically abut against the top end of the slide groove.

[0032] The locking pins 45 are erected at both ends of the crossbar 43. The carrier body 30 has corresponding matching locking pin holes through which the top of the locking pin 45 can extend out of the top surface of the carrier body 30. Under the action of the elastic element 44, the locking pin 45 elastically extends out of the top surface of the carrier body 30. In this embodiment, there are three locking pins 45 at each end of the crossbar 43. The locking pins 45 elastically extend out of the stepped surface at the top of the carrier body 30, and the stepped surface correspondingly supports the disc of the rotor 100. When the locking pin 45 is aligned with the positioning hole 102, it can be inserted accordingly.

[0033] When installing the rotor 100 onto the positioning structure, the rotor 100 is fitted onto the support body 30, and the rotor 100 presses against the stepped surface of the support body 30. Correspondingly, the locking pin 45 is compressed into the pin hole of the support body 30. The drive motor 10 drives the bushing body 41 to rotate, thereby driving the lifting shaft 42 to rotate, which in turn drives the locking pin 45 at both ends of the crossbar 43 and the support body 30 to rotate. The support body 30 rotates relative to the rotor 100. When the locking pin 45 is aligned with the positioning hole 102 of the rotor 100, the locking pin 45 extends into the positioning hole 102, thereby accurately positioning the rotor 100 on the support body 30. After alignment, the drive motor 10 drives the rotor 100 and the support body 30 to rotate together to improve the magnetization accuracy of the rotor 100.

[0034] Furthermore, before the locking pin 45 aligns with the positioning hole 102 of the rotor 100, the rotor 100 needs to be fixed to prevent the rotor 100 from rotating with the carrier 30, thus preventing alignment. The positioning mechanism further includes a locking mechanism to prevent the rotor 100 from rotating with the carrier 30 during alignment. The locking mechanism includes a lifting mechanism 50 and a pressing member 60. The lifting mechanism 50 is located on the machine platform 1 on one side of the turntable structure 2. The pressing member 60 is installed on the lifting mechanism 50 and is lifted and lowered by the lifting mechanism 50. The pressing member 60 is located directly above the turntable structure 2 and can press the rotor 100 installed on the turntable structure 2 against it. Specifically, the rotor 100 is installed at the top of the turntable structure 2. The lifting mechanism 50 drives the pressing member 60 to descend. The pressing member 60 locks the rotor 100 to prevent the rotor from rotating. After the rotor 100 is positioned on the turntable structure 2, the pressing member 60 disengages from the rotor, and the turntable structure 2 rotates, causing the rotor 100 to rotate.

[0035] In this embodiment, the pressing member 60 adopts a driving cylinder structure, including a cylinder body 61 and a chuck 62 connected to the piston end of the cylinder body. The piston of the cylinder body 61 extends downward, driving the chuck 62 to descend. The chuck 62 engages with the locking holes between the two positioning holes 102 on the rotor 100, thereby preventing the rotor 100 from rotating. After the rotor 100 is aligned, when rotation is required, the chuck 62 can be disengaged from the locking holes of the disc body.

[0036] When the magnetizer magnetizes the rotor 100, the rotor 100 to be processed is installed onto the positioning mechanism by a robotic arm or manually. The positioning mechanism positions the rotor 100, and the circumference of the rotor 100 extends into the magnetization space between the upper and lower magnetization mechanisms. Then, the magnetization mechanism 3 is activated, and it magnetizes the rotor end face area that has entered its magnetization space. After magnetization is completed, the rotor 100 is rotated, and the next area on the end face of the rotor 100 enters the magnetization space for magnetization. Specifically, each end face area corresponds to one blank 101 or several adjacent blanks 101. Rotating the rotor 100, the end face regions are magnetized one by one in sequence. That is, after one end face region is magnetized, the next end face region is magnetized. At the same time, when the next end face region is magnetized, the magnetized end face region is matched with the magnetic detection mechanism 4 so that the magnetic detection mechanism 4 can detect the surface magnetic intensity of the magnetized end face region. In this way, magnetization and detection are carried out step by step, and finally the rotor 100 that has completed magnetization and detection is taken out.

[0037] In summary, the positioning mechanism of the magnetizer provided by this utility model achieves precise positioning of the rotor 100 during magnetization. By setting the drive motor 10 and the rotating shaft structure 40 for transmission connection, the lifting shaft 42 drives the locking pin 45 fixed on the crossbar 43 to rotate relative to the rotor 100. The locking pin 45 is elastically supported by the elastic element 44. When the locking pin 45 is aligned with the positioning hole 102 of the rotor 100, it can be inserted into the positioning hole 102 to lock the rotor 100, thus accurately positioning the rotor 100. Furthermore, by setting a locking mechanism, the locking mechanism is equipped with a liftable pressing element 60 that cooperates with the center of the rotor 100's disc. Before alignment, if it is necessary to prevent the rotor 100 from rotating together with the carrier 30, the locking mechanism lowers to lock the rotor 100. After alignment, the locking mechanism rises to disengage from the rotor 100, making locking and releasing convenient.

[0038] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A rotor positioning mechanism for a magnetizer, mounted on the base plate (1) of the magnetizer, characterized in that: The machine includes a cylinder base (20), a rotating shaft structure (40), and a pressing component (60). The cylinder base (20) is erected on the top surface of the machine base plate (1). Opposite axial sliding grooves are opened on the circumferential surface of the cylinder base (20). The rotating shaft structure (40) includes a lifting shaft (42), a crossbar (43), an elastic component (44), and a locking pin (45). The lifting shaft (42) is rotatably inserted into the cylinder base (20). The crossbar (43) is horizontally fixed to the top of the lifting shaft (42). The two ends of the crossbar (43) extend outwards. The elastic element (44) is fitted onto the lifting shaft (42) in the groove of the cylinder seat (20) to provide an upward elastic force for the lifting shaft (42). The locking pin (45) is erected at both ends of the crossbar (43) and is engaged with the positioning hole (102) of the rotor (100). The pressing element (60) is set above the cylinder seat (20) to lock the rotor (100) when it is aligned, preventing the rotor (100) from rotating together with the shaft structure (40).

2. The rotor positioning mechanism according to claim 1, characterized in that: The bottom surface of the machine platform (1) is fixed with a drive motor (10), which is connected to the lifting shaft (42) for driving the lifting shaft (42) to rotate.

3. The rotor positioning mechanism according to claim 2, characterized in that: The rotating shaft structure (40) includes a bushing body (41), which is installed in the cylinder seat (20) and connected to the drive motor (10) for transmission. The lifting shaft (42) is slidably inserted in the bushing body (41), and the lifting shaft (42) is driven to rotate by the rotation of the bushing body (41).

4. The rotor positioning mechanism according to claim 3, characterized in that: The outer peripheral surface of the lifting shaft (42) forms a longitudinal protrusion, and the shaft hole wall of the bushing body (41) forms a corresponding longitudinal groove to match the protrusion, so that the lifting shaft (42) can slide and lift inside the bushing body (41).

5. The rotor positioning mechanism according to claim 1, characterized in that: The cylinder base (20) includes a bottom cylinder (21) and a top cylinder (22) rotatably connected to the bottom cylinder (21). The bottom cylinder (21) is fixed to the top surface of the machine base plate (1), and the top of the top cylinder (22) is provided with a support body (30) for supporting the rotor (100).

6. The rotor positioning mechanism according to claim 5, characterized in that: The top cylinder (22) has a sliding groove along the axial direction on its peripheral wall, and the two ends of the crossbar (43) extend into the sliding groove to drive the top cylinder (22) to rotate synchronously.

7. The rotor positioning mechanism according to claim 5, characterized in that: The carrier (30) has a pin hole, and the locking pin (45) passes through the pin hole and extends out of the top surface of the carrier (30), and is inserted into the positioning hole (102) of the rotor (100).

8. The rotor positioning mechanism according to claim 1, characterized in that: It includes a lift (50) set on the machine platform (1), the lift (50) is fixed on one side of the rotating shaft structure (40), and a pressing part (60) is installed on the lift (50) so that the lift (50) can drive the pressing part (60) to rise and fall.

9. The rotor positioning mechanism according to claim 1, characterized in that: The pressing member (60) includes a cylinder (61) and a chuck (62) connected to the piston end of the cylinder (61). The piston of the cylinder (61) extends downward, causing the chuck (62) to descend and abut against the rotor (100) so that the chuck (62) can fix the rotor (100).

10. A magnetizer, wherein a magnetization mechanism (3) and a magnetic detection mechanism (4) are provided on a machine base plate (1), characterized in that: It also includes a rotor positioning mechanism as described in any one of claims 1-9, wherein a magnetizing mechanism (3) and a magnetic detection mechanism (4) are fixed on the periphery of the rotor positioning mechanism, the magnetizing mechanism (3) is used to magnetize the end face area of ​​the rotor (100), and the magnetic detection mechanism (4) is used to perform surface magnetic detection on the end face area of ​​the rotor (100) after magnetization.

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