A tool for quickly assembling a permanent magnet motor

Abstract

The utility model discloses a kind of tooling for quick assembly permanent magnet motor in the technical field of permanent magnet motor.The tooling includes frame and workbench, and workbench is equipped with stator positioning assembly and lifting mechanism, and lifting mechanism has lifting end, and lifting end is equipped with rotor positioning assembly;Stator positioning assembly includes two limit blocks;The bottom of stator shell is provided with locating seat, and the inner contour of locating seat is circular, and workbench is equipped with limit ring, and limit ring is contacted with the inner contour of locating seat;The outer contour of locating seat is curve polygon, including multiple straight edges and multiple arc edges, and two limit blocks are contacted with two straight edges respectively;Workbench is equipped with rotating clamping cylinder that tightly positions locating seat;Rotor positioning assembly includes locating round table set in lifting end, and locating round table is adapted to the center hole in rotor, and the top of locating round table is equipped with fixed column, and nut is threaded through fixed column.The utility model has the advantages of realizing quick assembly.

Description

TECHNICAL FIELD

[0001] The utility model relates to permanent magnet motor technical field, especially a tool for quick assembly permanent magnet motor. BACKGROUND

[0002] Permanent magnet motor is composed of stator, rotor and other components, and the working principle of permanent magnet motor is mainly based on electromagnetic induction principle. When the stator winding is connected with current, a rotating magnetic field is generated. The rotating magnetic field interacts with the magnetic field generated by the permanent magnet on the rotor, thereby generating electromagnetic torque to drive the motor to rotate. An air gap magnetic field is generated between the stator and the rotor. However, due to the magnetic attraction between the permanent magnet on the rotor and the stator, assembly is difficult. Therefore, the prior art discloses a permanent magnet motor rotor into shell method that can overcome the magnetic attraction, with application publication number CN 115765364 A and application publication date 2023.03.07. During assembly, the magnetic attraction is overcome by using a magnetic separation strip. After assembly, the magnetic separation strip is removed. Although the prior art reduces the assembly difficulty, it is necessary to install and remove the magnetic separation strip. After determining the annular gap, the rotor and the stator are hoisted and assembled. The operation is complicated and cannot be quickly assembled. SUMMARY

[0003] The utility model aims to provide a tool for quick assembly permanent magnet motor to overcome the above-mentioned defects in the prior art.

[0004] In order to achieve the above-mentioned utility model purposes, the tool for quick assembly permanent magnet motor adopts the following technical solutions:

[0005] A tool for quick assembly permanent magnet motor, comprising a rack and a workbench surface arranged on the rack. The workbench surface is provided with a stator positioning assembly and a lifting mechanism. The lifting mechanism has a lifting end that can vertically lift through the workbench surface. The end of the lifting end is provided with a rotor positioning assembly. The stator positioning assembly comprises two limiting blocks arranged on the workbench surface, which are used to limit the two ends of the stator shell. The bottom of the stator shell is provided with a positioning seat, and the inner contour of the positioning seat is circular. The workbench surface is provided with a limiting ring in contact with the inner contour of the positioning seat. The outer contour of the positioning seat is a symmetrical curved polygon, which comprises a plurality of straight edges and a plurality of arc edges. The arc edge is connected between the two adjacent straight edges. The two limiting blocks are in contact with the two straight edges arranged opposite to each other. The workbench surface is provided with a rotary clamping cylinder for clamping the positioning seat. The rotary clamping cylinder is provided with a pressing piece that clamps the positioning seat on the workbench surface. The rotor positioning assembly comprises a positioning circular table arranged on the lifting end. The positioning circular table is matched with the center hole in the rotor. The top of the positioning circular table is provided with a fixed column. The outer periphery of the fixed column is provided with an external thread. After the nut is threaded through the fixed column, the rotor is locked on the lifting end.

[0006] Preferably, the bottom of the workbench is provided with a support frame, the support frame is provided with two vertical guide rods, the lifting end of the lifting mechanism is provided with a sliding seat, both ends of the sliding seat are provided with sliding sleeves, and the sliding sleeves are arranged on the outer periphery of the guide rods.

[0007] Preferably, the lifting mechanism is a pneumatic cylinder, a hydraulic cylinder or an electric push rod.

[0008] Preferably, the two rotary clamping cylinders are arranged at the front end on one side of the positioning seat and at the rear end on the other side of the positioning seat.

[0009] Preferably, the limiting block and the limiting ring are installed on the workbench through fasteners.

[0010] Compared with the prior art, the utility model has the advantages that:

[0011] 1. The utility model discloses a stator positioning assembly is arranged on the workbench, and the position of the stator on the workbench is quickly determined.

[0012] 2. The stator positioning assembly is simple in structure and accurate in positioning.

[0013] 3. The rotor positioning assembly is simple in structure and accurate in positioning. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of the utility model;

[0015] Figure 2 is a top view of the stator and the rotor; Figure 1 is a top view of the stator and the rotor;

[0016] Figure 3 is a schematic view of the stator and the rotor before assembly;

[0017] Figure 4 is a schematic view of the stator and the rotor during assembly;

[0018] Figure 5 is a schematic view of the stator and the rotor after assembly;

[0019] Figure 6 is a top view of the stator and the rotor; Figure 1 is an enlarged view of A of the stator and the rotor.

[0020] Wherein, 1 frame, 2 rotating clamping cylinder, 201 pressing part, 3 positioning round table, 4 fixed column, 5 sliding sleeve, 6 sliding seat, 7 lifting mechanism, 701 lifting end, 8 guide rod, 9 support frame, 10 stator, 10a stator shell, 11 workbench surface, 12 limiting ring, 13 limiting block, 14 positioning seat, 15 rotor, 16 nut. DETAILED DESCRIPTION

[0021] The present application will be further illustrated by the following specific embodiments, which are only used to illustrate the present application and not used to limit the scope of the present application. After reading the present application, those skilled in the art can make various equivalent modifications to the present application, which all fall within the scope defined by the appended claims.

[0022] As Figures 1-6As shown, a tool for quickly assembling a permanent magnet motor, including a rack 1 and a workbench 11 arranged on the rack 1, the workbench 11 is provided with a stator positioning assembly and a lifting mechanism 7, the lifting mechanism 7 is a pneumatic cylinder, a hydraulic cylinder or an electric push rod, the lifting mechanism 7 has a lifting end 701, the lifting end 701 passes through the workbench 11 and can realize vertical lifting, and the end of the lifting end 701 is provided with a rotor positioning assembly; The bottom of the workbench 11 is provided with a support frame 9, the support frame 9 is provided with two vertical guide rods 8, the lifting end 701 of the lifting mechanism 7 is provided with a sliding seat 6, both ends of the sliding seat 6 are provided with a sliding sleeve 5, and the sliding sleeve 5 is sleeved on the outer periphery of the guide rod 8; The stator positioning assembly includes two limiting blocks 13 arranged on the workbench 11, and the two limiting blocks 13 are respectively used for limiting both ends of a stator shell 10a; The bottom of the stator shell 10a is provided with a positioning seat 14, the inner contour of the positioning seat 14 is circular, the workbench 11 is provided with a limiting ring 12, and the limiting ring 12 is in contact with the inner contour of the positioning seat 14; The limiting block 13 and the limiting ring 12 are both installed on the workbench 11 through fasteners; The outer contour of the positioning seat 14 is a symmetrical curved polygon, the curved polygon includes a plurality of straight edges and a plurality of arc edges, the arc edge is connected between two adjacent straight edges, and the two limiting blocks 13 are respectively in contact with two straight edges arranged opposite to each other; The workbench 11 is provided with a rotary clamping cylinder 2 for clamping the positioning seat 14, the rotary clamping cylinder can be directly purchased, the rotary clamping cylinder 2 is provided with a pressing part 201, and the pressing part 201 clamps the positioning seat 14 on the workbench 11; The rotary clamping cylinder 2 is provided with two, one of the rotary clamping cylinders 2 is arranged at the front end of one side of the positioning seat 14, and the other rotary clamping cylinder 2 is arranged at the rear end of the other side of the positioning seat 14; The rotor positioning assembly includes a positioning circular table 3 arranged on the lifting end 701, the positioning circular table 3 is matched with the center hole in the rotor 15, the top of the positioning circular table 3 is provided with a fixed column 4, the outer periphery of the fixed column 4 is provided with an external thread, and the nut 16 is screwed into the fixed column 4 to lock the rotor 15 on the lifting end 701.

[0023] The specific working process and principle of the utility model are as follows: during assembly, firstly, the positioning seat 14 is placed between the limiting block 13 and the limiting ring 12, then the rotary clamping cylinder 2 is driven to act, so that the pressing part 201 presses the positioning seat 14, and the positioning seat 14 is pressed on the workbench surface 11; then the rotor 15 is placed on the lifting end 701, the positioning circular table 3 is inserted into the center hole of the rotor 15, and the nut 16 is assembled on the fixed column 4 and locked, so that the rotor 15 is locked on the lifting end 701; at this time, the lifting mechanism 7 can be driven to act, the lifting end 701 is lowered, the rotor 15 is driven to descend, the rotor 15 is gradually lowered to the inside of the stator 10, under the action of the magnetic field, the rotor 15 and the stator 10 are assembled, then the nut 16 is removed, at the same time, the rotary clamping cylinder 2 drives the pressing part 201 to loosen the pressing of the positioning seat 14, so that the stator 10 and the rotor 15 assembled are driven out of the lifting end 701.

[0024] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "central", "both ends" is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model.

[0025] In the utility model, unless otherwise specified and limited, the terms "mounting", "setting", "connection", "fixing", "screw connection" and the like should be understood in a broad sense, for example, can be fixed connection, or can be detachable connection, or can be integrated; can be mechanical connection, or can be electrical connection; can be directly connected, or can be indirectly connected through an intermediate medium; can be the communication between two elements or the interaction relationship between two elements, unless otherwise explicitly limited, the above-mentioned terms in the utility model can be understood according to the specific meaning in the utility model by the person skilled in the art according to the specific situation.

[0026] The above description shows and describes the preferred embodiments of the utility model, as described above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model conceived in the present application by the above-mentioned teaching or related technology or knowledge. The modification and change made by the person skilled in the art without departing from the spirit and scope of the utility model should be within the protection scope of the claims attached to the utility model.

Claims

1. A tooling for quick assembly of a permanent magnet electric machine, characterized in that: The application relates to a workbench comprising a rack and a workbench top arranged on the rack, wherein the workbench top is provided with a stator positioning assembly and a lifting mechanism, the lifting mechanism has a lifting end, the lifting end penetrates through the workbench top and can realize vertical lifting, and the end of the lifting end is provided with a rotor positioning assembly; the stator positioning assembly comprises two limiting blocks arranged on the workbench top, and the two limiting blocks are respectively used for limiting two ends of a stator shell; the bottom of the stator shell is provided with a positioning seat, the inner contour of the positioning seat is circular, the workbench top is provided with a limiting ring, and the limiting ring is in contact with the inner contour of the positioning seat; the outer contour of the positioning seat is a symmetrical curved polygon, the curved polygon comprises a plurality of straight edges and a plurality of arc edges, the arc edge is connected between two adjacent straight edges, and the two limiting blocks are respectively in contact with two straight edges arranged opposite to each other; the workbench top is provided with a rotary clamping cylinder used for clamping the positioning seat, the rotary clamping cylinder is provided with a pressing part, and the pressing part clamps the positioning seat on the workbench top; the rotor positioning assembly comprises a positioning circular table arranged on the lifting end, the positioning circular table is matched with a central hole in the rotor, the top of the positioning circular table is provided with a fixing column, the outer periphery of the fixing column is provided with an external thread, and a nut is screwed on the fixing column to lock the rotor on the lifting end.

2. The tooling for quick assembly of permanent magnet electric machines according to claim 1, characterized in that: The bottom of the workbench top is provided with a support frame, the support frame is provided with two vertically-arranged guide rods, the lifting end of the lifting mechanism is provided with a sliding seat, and the two ends of the sliding seat are provided with sliding sleeves which are sleeved on the outer periphery of the guide rods.

3. The tooling for quick assembly of permanent magnet electric machines according to claim 2, characterized in that: The lifting mechanism is a gas cylinder, a hydraulic cylinder or an electric push rod.

4. The tooling for quick assembly of permanent magnet electric machines according to claim 1, characterized in that: The rotary clamping cylinders are arranged in two, one rotary clamping cylinder is arranged at the front end of one side of the positioning seat, and the other rotary clamping cylinder is arranged at the rear end of the other side of the positioning seat.

5. The tooling for quick assembly of permanent magnet electric machines according to claim 1, characterized in that: The limiting blocks and the limiting ring are mounted on the workbench top through fasteners.

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