Machining device and machining method for rotor of outer rotor motor

Abstract

The invention discloses a machining device and method for a rotor of an external rotor motor, and belongs to the field of machining devices.The machining device for the rotor of the external rotor motor comprises a base, a plurality of installation holes are formed in the base, and the installation holes are evenly distributed in the circumferential direction of the base; the fixing ring is sleeved outside the base; the positioning ring is sleeved with the base, a plurality of protrusions are connected to the outer edge of the positioning ring in the circumferential direction at intervals and abut against the base, and a containing groove is formed between every two adjacent protrusions, so that a plurality of containing grooves are formed; the stator assembly is sleeved in the positioning ring; and a controller electrically connected with the stator assembly. The magnetic tile mounting device has the technical effects that the mounting accuracy of a plurality of magnetic tiles is good, and the mounting synchronism of the plurality of magnetic tiles is good.

Description

Technical Field

[0001] The invention relates to a processing device, and in particular to a processing device and a processing method for a rotor of an outer rotor motor. Background Art

[0002] An external rotor motor is a motor with the rotor on the outside and the stator on the inside. It has the advantages of simple structure and small axial size. It is widely used in wind power generation, household appliances and other fields.

[0003] The rotor of an external rotor motor generally includes a housing and several magnetic tiles. During processing, the several magnetic tiles need to be connected to the inner wall of the housing. However, the related processing equipment is not only prone to causing the installation direction of several magnetic tiles to be wrong, thereby causing poor installation accuracy of several magnetic tiles, but also prone to causing poor installation synchronization of several magnetic tiles. At the same time, the disassembly and assembly performance of the related processing equipment is poor. Summary of the invention

[0004] Purpose of the invention: The purpose of the present invention is to provide a processing device for the rotor of an external rotor motor, which not only ensures good installation accuracy of a plurality of magnetic tiles, but also ensures good installation synchronization of a plurality of magnetic tiles, and at the same time has good disassembly and assembly performance; another purpose of the present invention is to provide a processing method.

[0005] Technical solution:

[0006] A device for processing a rotor of an outer rotor motor, comprising:

[0007] A base, wherein a plurality of mounting holes are provided on the base, and the plurality of mounting holes are evenly distributed along the circumference of the base;

[0008] A fixing ring sleeved on the outside of the base;

[0009] A positioning ring sleeved in the base, wherein the outer edge of the positioning ring is connected with a plurality of protrusions at intervals in the circumferential direction, wherein the plurality of protrusions are in contact with the base, and receiving grooves are formed between adjacent protrusions, so as to form a plurality of receiving grooves;

[0010] A stator assembly sleeved in the positioning ring;

[0011] A controller is electrically connected to the stator assembly.

[0012] Optionally, the stator assembly comprises:

[0013] A frame sleeved in the positioning ring;

[0014] A plurality of windings are connected to the frame, the plurality of windings and the plurality of accommodating slots are arranged correspondingly, and the plurality of windings are electrically connected to the controller.

[0015] Optionally, the skeleton comprises:

[0016] Limiting tube;

[0017] A plurality of connecting frames, one end of each of the connecting frames is connected to the limiting tube, and the plurality of windings are correspondingly wound outside the plurality of connecting frames;

[0018] A plurality of limiting plates, one end of each of which is correspondingly connected to the other end of each of the plurality of connecting frames, and the other ends of each of the plurality of limiting plates are sleeved in the positioning ring;

[0019] Among them, one end of the plurality of windings conflicts with the limiting tube, and the other end of the plurality of windings conflicts with the plurality of limiting plates accordingly.

[0020] Optionally, the base comprises:

[0021] seat body;

[0022] A chassis sleeved on the outside of the seat body;

[0023] Among them, the fixing ring is sleeved on the outside of the seat body, the fixing ring is in contact with the chassis, the positioning ring is sleeved on the seat body, the plurality of protrusions are in contact with the seat body, and the plurality of mounting holes are evenly distributed on the chassis along the circumferential direction.

[0024] Optionally, the base further includes a step portion provided on the seat body, and the positioning ring abuts against the step portion.

[0025] Optionally, it also includes an annular groove arranged on a side of the fixing ring close to the base.

[0026] Optionally, the connection between the positioning ring and the plurality of protrusions is an integrally formed connection, and the plurality of protrusions are evenly distributed along the circumference of the positioning ring.

[0027] Optionally, it further includes a frame, the base and the controller are both connected to the frame, the frame is provided with a threading hole, and the base covers the threading hole.

[0028] Optionally, it also includes a forward button, a stop button and a reverse button, all of which are electrically connected to the controller, and the forward button and the reverse button are both multi-gear buttons.

[0029] A method for processing a rotor of an outer rotor motor, comprising:

[0030] The controller controls the stator assembly to pass positive direct current so that the stator assembly generates a positive magnetic field;

[0031] Placing a plurality of magnetic tiles in a plurality of receiving grooves in sequence, so that the plurality of magnetic tiles and the positioning rings are in close contact with each other;

[0032] The controller continuously controls the stator assembly to pass positive direct current, so that the stator assembly magnetizes a plurality of magnetic tiles;

[0033] Apply glue inside the shell, and put the shell on several magnetic tiles, and make the shell and the fixing ring contact with each other;

[0034] The controller controls the stator assembly to pass reverse direct current for a preset time so that the stator assembly generates a reverse magnetic field, thereby causing the plurality of magnetic tiles to synchronously move toward the inner wall of the shell, thereby causing the plurality of magnetic tiles to be synchronously glued to the inner wall of the shell and causing the glue to solidify.

[0035] Beneficial effects:

[0036] (1) Place a number of magnetic tiles in a number of receiving slots in sequence. Under the action of the positive magnetic field of the stator assembly, a number of magnetic tiles and positioning rings are tightly in contact. If the installation direction of the magnetic tiles is wrong, repulsion will occur under the action of the positive magnetic field of the stator assembly, resulting in the inability to install the magnetic tiles, thereby ensuring good installation accuracy of the magnetic tiles;

[0037] (2) The controller controls the stator assembly to pass reverse direct current so that the stator assembly generates a reverse magnetic field, thereby causing the plurality of magnetic tiles to move synchronously toward the inner wall of the shell, and then causing the plurality of magnetic tiles to be synchronously glued to the inner wall of the shell, thereby ensuring good synchronization in the installation of the plurality of magnetic tiles, and allowing the reverse direct current to continue for a preset time to facilitate the curing of the glue, thereby finally completing the processing of the rotor of the outer rotor motor.

[0038] (3) A plurality of mounting holes are used to pass a plurality of fasteners, so that the base can be detachably fastened to a frame or other components, and has good disassembly and assembly performance. Since the plurality of mounting holes are evenly distributed along the circumference of the base, the force uniformity of the base is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 A structural diagram of a rotor processing device and a rotor of an outer rotor motor of Embodiment 1 of the present invention;

[0040] Figure 2 A partial cross-sectional view of a rotor machining device and a rotor of an outer rotor motor according to Embodiment 1 of the present invention;

[0041] Figure 3 A partial view of a rotor processing device for an outer rotor motor according to Embodiment 1 of the present invention;

[0042] Figure 4 It is a structural diagram of the rotor of the outer rotor motor of Example 1 of the present invention;

[0043] Figure 5 Magnetic field intensity vector cloud diagrams of several magnetic tiles according to Example 1 of the present invention;

[0044] Figure 6is a magnetic flux density cloud diagram of the rotor of Example 1 of the present invention;

[0045] Figure 7 is an output waveform diagram of the controller of embodiment 1 of the present invention;

[0046] In the figure: 1. base; 11. seat body; 12. chassis; 121. mounting hole; 13. step portion; 2. fixing ring; 21. annular groove; 3. positioning ring; 31. protrusion; 32. accommodating groove; 4. stator assembly; 41. skeleton; 411. limit tube; 412. connecting frame; 413. limit plate; 42. winding; 5. controller; 6. frame; 61. threading hole; 71. positive button; 72. stop button; 73. reverse button; 8. shell; 9. magnetic tile. DETAILED DESCRIPTION

[0047] In order to make the technical solution of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0048] Example 1

[0049] like Figure 1 - Figure 2 The present embodiment provides a rotor processing device for an outer rotor motor, comprising: a base 1, a plurality of mounting holes 121 are provided on the base 1, and the plurality of mounting holes 121 are evenly distributed along the circumference of the base 1; a fixing ring 2 sleeved on the outside of the base 1; a positioning ring 3 sleeved on the inside of the base 1, a plurality of protrusions 31 are connected to the outer circumferential edge of the positioning ring 3 at intervals, the plurality of protrusions 31 are in contact with the base 1, and accommodating grooves 32 are formed between adjacent protrusions 31, so as to form a plurality of accommodating grooves 32; a stator assembly 4 sleeved on the positioning ring 3; and a controller 5 electrically connected to the stator assembly 4.

[0050] Specifically, during processing, first, the controller 5 controls the stator assembly 4 to pass positive direct current so that the stator assembly 4 generates a positive magnetic field; then, a plurality of magnetic tiles 9 are placed in a plurality of receiving slots 32 in sequence. Under the action of the positive magnetic field of the stator assembly 4, a plurality of magnetic tiles 9 and the positioning ring 3 are tightly in contact. If the installation direction of the magnetic tile 9 is wrong, under the action of the positive magnetic field of the stator assembly 4, repulsion will occur, resulting in the inability to install the magnetic tile 9, thereby ensuring the installation accuracy of the magnetic tile 9; then, glue is applied inside the shell 8, and the shell 8 is sleeved on the outside of the plurality of magnetic tiles 9. , ensuring that the gap between the plurality of magnetic tiles 9 and the inner wall of the shell 8 is in the range of 0.6-0.8mm, and at the same time making the shell 8 and the fixing ring 2 collide; further, the controller 5 controls the stator assembly 4 to pass reverse direct current, so that the stator assembly 4 generates a reverse magnetic field, so that the plurality of magnetic tiles 9 are synchronously moved toward the inner wall of the shell 8, and then the plurality of magnetic tiles 9 are synchronously glued to the inner wall of the shell 8, ensuring that the installation synchronization of the plurality of magnetic tiles 9 is good, and making the reverse direct current last for a preset time, so as to facilitate the curing of the glue, and finally completing the processing of the rotor of the outer rotor motor; Figure 5 The magnetic field intensity vector cloud diagram of several magnetic tiles can show the direction and value range of the magnetic field intensity of several magnetic tiles in this embodiment, such as Figure 6 The magnetic flux density cloud diagram of the rotor shows the numerical range of the magnetic flux density of the rotor in this embodiment.

[0051] Among them, the base 1 is used to support a number of magnetic tiles 9, which is convenient for axially limiting the magnetic tiles 9 along the base 1. The material of the base 1 can be aluminum, copper or other materials with weak magnetic resistance, preferably aluminum, to prevent the base 1 from interfering with the magnetic field generated by the stator assembly 4; the fixing ring 2 is used to support the shell 8, which is convenient for axially limiting the shell 8. The material of the fixing ring 2 can be aluminum, copper or other materials with weak magnetic resistance, preferably aluminum, to prevent the fixing ring 2 from interfering with the magnetic field generated by the stator assembly 4; the positioning ring 3 is used to carry a number of protrusions 31, and the number of protrusions 31 is used to form a number of accommodating grooves 32, and the number of accommodating grooves 32 are used to accommodate a number of The dry magnetic tiles 9 are convenient for limiting the plurality of magnetic tiles 9 along the circumferential direction of the positioning ring 3. The material of the positioning ring 3 can be aluminum, copper or other materials with weak magnetic resistance, preferably aluminum, to prevent the positioning ring 3 from interfering with the magnetic field generated by the stator assembly 4; the stator assembly 4 is used to generate a magnetic field, and the stator assembly 4 can include a skeleton 41, a plurality of windings 42, etc.; the controller 5 is used to control the stator assembly 4; a plurality of mounting holes 121 are used to pass a plurality of fasteners, so as to facilitate the detachable fastening of the base 1 to the frame 6 and other components, with good disassembly and assembly performance, because the plurality of mounting holes 121 are evenly distributed along the circumference of the base 1, the force uniformity of the base 1 is good.

[0052] Further, such as Figure 2 - Figure 3 The stator assembly 4 includes: a skeleton 41 sleeved in the positioning ring 3; a plurality of windings 42 connected to the skeleton 41, the plurality of windings 42 and the plurality of receiving slots 32 are arranged correspondingly, and the plurality of windings 42 are electrically connected to the controller 5. Specifically, the skeleton 41 is used to carry the plurality of windings 42, and the material of the skeleton 41 is preferably iron; the plurality of windings 42 are controlled by the controller 5 and used to generate a magnetic field, the number of the plurality of windings 42 is equal to the number of the plurality of magnetic tiles 9, the specific number is not limited, and is preferably 14, i.e., 7 pairs, the material of the plurality of windings 42 is preferably copper, and the plurality of windings 42 are preferably connected in series with the controller 5, so as to effectively reduce the wire ends.

[0053] Further, such as Figure 2The skeleton 41 includes: a limiting tube 411; a plurality of connecting frames 412, one end of each of the connecting frames 412 is connected to the limiting tube 411, and a plurality of windings 42 are correspondingly wound outside the connecting frames 412; a plurality of limiting plates 413, one end of each of the limiting plates 413 is correspondingly connected to the other end of each of the connecting frames 412, and the other end of each of the limiting plates 413 is sleeved in the positioning ring 3; wherein, one end of each of the windings 42 is in contact with the limiting tube 411, and the other end of each of the windings 42 is in contact with the limiting plates 413. Specifically, the connecting frames 412 are used to correspondingly carry a plurality of windings 42, and the limiting tube 411 and the limiting plates 413 are respectively used to limit the two ends of the windings 42, wherein the connection between the limiting tube 411, the connecting frames 412 and the limiting plates 413 can be welding, or an integrally formed casting connection.

[0054] Further, such as Figure 2 - Figure 3 The base 1 includes: a base body 11; a chassis 12 sleeved on the outside of the base body 11; wherein the fixing ring 2 is sleeved on the outside of the base body 11, the fixing ring 2 is in contact with the chassis 12, the positioning ring 3 is sleeved in the base body 11, the plurality of protrusions 31 are in contact with the base body 11, and the plurality of mounting holes 121 are uniformly distributed on the chassis 12 along the circumferential direction. Specifically, the connection between the base body 11 and the chassis 12 can be welding or integral casting.

[0055] Further, such as Figure 2 The base 1 further includes a step portion 13 disposed on the seat body 11, and the positioning ring 3 abuts against the step portion 13. Specifically, the step portion 13 is used to limit the positioning ring 3 in the axial and radial directions.

[0056] Further, such as Figure 2 - Figure 3 , and also includes an annular groove 21 provided on one side of the fixing ring 2 close to the base 1. Specifically, the annular groove 21 is used to accommodate chips, so that the waste chips generated when the plurality of magnetic tiles 9 are installed enter the annular groove 21, and the waste chips are prevented from gathering at the end of the fixing ring 2 away from the chassis 12, thereby ensuring that the contact stability between the housing 8 and the end of the fixing ring 2 away from the chassis 12 is good, thereby preventing the housing 8 from tilting, and further making the machining accuracy of the rotor of the outer rotor motor of this embodiment high.

[0057] Further, such as Figure 2 - Figure 3The connection between the positioning ring 3 and the plurality of protrusions 31 is an integrally formed connection, and the plurality of protrusions 31 are evenly distributed along the circumference of the positioning ring 3. Specifically, the integrally formed connection facilitates the positioning ring 3 and the plurality of protrusions 31 to have good integrity; the circumferentially evenly distributed facilitates the plurality of magnetic tiles 9 to be evenly distributed along the circumference of the positioning ring 3, thereby making the plurality of magnetic tiles 9 evenly distributed along the circumference of the inner wall of the housing 8, ensuring good installation uniformity of the plurality of magnetic tiles 9.

[0058] Further, such as Figure 1 - Figure 2 , and also includes a frame 6, the base 1 and the controller 5 are both connected to the frame 6, the frame 6 is provided with a threading hole 61, and the base 1 covers the threading hole 61. Specifically, the frame 6 is used to carry the base 1, the controller 5, etc.; the threading hole 61 is used to pass the electrical connection harness between the controller 5 and the plurality of windings 42. Since the base 1 covers the threading hole 61, the base 1 covers the electrical connection harness, ensuring good concealment of the electrical connection harness.

[0059] Further, such as Figure 1 , and also includes a positive button 71, a stop button 72 and a reverse button 73, which are all electrically connected to the controller 5. Specifically, the positive button 71 is used to make the controller 5 output a high level, so as to facilitate polarity detection and magnetization of a plurality of magnetic tiles 9. The positive button 71 is also used to make the controller 5 output a positive direct current, so as to facilitate the stator assembly 4 to generate a positive magnetic field, thereby facilitating the adsorption of a plurality of magnetic tiles 9; the stop button 72 is used to output a low level, so that the positive magnetic field or the reverse magnetic field of the stator assembly 4 disappears; the reverse button 73 is used to make the controller 5 output a high level, and is also used to make the controller 5 output a reverse direct current, so as to facilitate the stator assembly 4 to generate a reverse magnetic field, thereby facilitating the repulsion of a plurality of magnetic tiles 9, and then causing a plurality of magnetic tiles 9 to move toward the inner wall of the shell 8; Figure 7 In this embodiment, the controller 5 outputs a high level for polarity detection, a high level for adsorption, a high level for repulsion, and a low level for release each time, and the high level for repulsion is continuously output for a preset time in order to facilitate the curing of the glue, but the high level for magnetization of the controller 5 is output according to demand.

[0060] Further, such as Figure 1 The positive button 71 and the reverse button 73 are both multi-position buttons. Specifically, the multi-position buttons facilitate the positive button 71 and the reverse button 73 to adjust the magnitude of the forward direct current and the reverse direct current output by the controller 5, thereby facilitating the adjustment of the strength of the forward magnetic field and the reverse magnetic field.

[0061] This embodiment further provides a method for processing a rotor of an outer rotor motor as in this embodiment, comprising:

[0062] The controller 5 controls the stator assembly 4 to pass positive direct current, so that the stator assembly 4 generates a positive magnetic field;

[0063] Place a plurality of magnetic tiles 9 in a plurality of receiving grooves 32 in sequence, so that the plurality of magnetic tiles 9 and the positioning ring 3 are in close contact with each other;

[0064] The controller 5 continuously controls the stator assembly 4 to pass positive direct current, so that the stator assembly 4 magnetizes a plurality of magnetic tiles 9;

[0065] Apply glue inside the shell 8, and put the shell 8 on the outside of a number of magnetic tiles 9, and at the same time make the shell 8 and the fixing ring 2 contact each other;

[0066] The controller 5 controls the stator assembly 4 to pass reverse direct current for a preset time, so that the stator assembly 4 generates a reverse magnetic field, thereby causing the plurality of magnetic tiles 9 to synchronously move toward the inner wall of the shell 8, thereby causing the plurality of magnetic tiles 9 to synchronously glued to the inner wall of the shell 8 and solidifying the glue.

[0067] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A rotor machining device for an outer rotor motor, characterized in that: include: A base, wherein a plurality of mounting holes are provided on the base, and the plurality of mounting holes are evenly distributed along the circumference of the base; A fixing ring sleeved on the outside of the base; A positioning ring sleeved in the base, wherein the outer edge of the positioning ring is connected with a plurality of protrusions at intervals in the circumferential direction, wherein the plurality of protrusions are in contact with the base, and receiving grooves are formed between adjacent protrusions, so as to form a plurality of receiving grooves; A stator assembly sleeved in the positioning ring; A controller is electrically connected to the stator assembly.

2. The rotor machining device of an outer rotor motor according to claim 1, characterized in that: The stator assembly comprises: A frame sleeved in the positioning ring; A plurality of windings are connected to the frame, the plurality of windings and the plurality of accommodating slots are arranged correspondingly, and the plurality of windings are electrically connected to the controller.

3. The rotor machining device of an outer rotor motor according to claim 2, characterized in that: The skeleton comprises: Limiting tube; A plurality of connecting frames, one end of each of the connecting frames is connected to the limiting tube, and the plurality of windings are correspondingly wound outside the plurality of connecting frames; A plurality of limit plates, one end of each of which is correspondingly connected to the other end of each of the plurality of connection frames, and the other ends of each of the plurality of limit plates are sleeved in the positioning ring; Among them, one end of the plurality of windings conflicts with the limiting tube, and the other end of the plurality of windings conflicts with the plurality of limiting plates accordingly.

4. The rotor machining device of an outer rotor motor according to any one of claims 1 to 3, characterized in that: The base comprises: seat body; A chassis sleeved on the outside of the seat body; Among them, the fixing ring is sleeved on the outside of the seat body, the fixing ring is in contact with the chassis, the positioning ring is sleeved on the seat body, the plurality of protrusions are in contact with the seat body, and the plurality of mounting holes are evenly distributed on the chassis along the circumferential direction.

5. The rotor machining device of an outer rotor motor according to claim 4, characterized in that: The base also includes a step portion arranged on the seat body, and the positioning ring abuts against the step portion.

6. The rotor machining device of an outer rotor motor according to any one of claims 1 to 3, characterized in that: It also includes an annular groove arranged on one side of the fixing ring close to the base.

7. The rotor machining device of an outer rotor motor according to any one of claims 1 to 3, characterized in that: The connection between the positioning ring and the plurality of protrusions is an integrally formed connection, and the plurality of protrusions are evenly distributed along the circumference of the positioning ring.

8. The rotor machining device for an outer rotor motor according to any one of claims 1 to 3, characterized in that: It also includes a frame, the base and the controller are both connected to the frame, the frame is provided with a threading hole, and the base covers the threading hole.

9. The rotor machining device of an outer rotor motor according to any one of claims 1 to 3, characterized in that: It also includes a forward button, a stop button and a reverse button, all of which are electrically connected to the controller, and the forward button and the reverse button are both multi-gear buttons.

10. A method for machining a rotor of an outer rotor motor according to any one of claims 1 to 9, characterized in that: include: The controller controls the stator assembly to pass positive direct current so that the stator assembly generates a positive magnetic field; Placing a plurality of magnetic tiles in a plurality of receiving grooves in sequence, so that the plurality of magnetic tiles and the positioning rings are in close contact with each other; The controller continuously controls the stator assembly to pass positive direct current, so that the stator assembly magnetizes a plurality of magnetic tiles; Apply glue inside the shell, and put the shell on several magnetic tiles, and make the shell and the fixing ring contact with each other; The controller controls the stator assembly to pass reverse direct current for a preset time so that the stator assembly generates a reverse magnetic field, thereby causing the plurality of magnetic tiles to synchronously move toward the inner wall of the shell, thereby causing the plurality of magnetic tiles to be synchronously glued to the inner wall of the shell and causing the glue to solidify.

Images