Stator and rotor assembling equipment for small and micro motor

Abstract

The stator and rotor assembling equipment comprises a rack, a workbench, a stator tool, a stator pressing air cylinder, a rotor tool, a rotor lifting air cylinder, a left jacking air cylinder and a right jacking air cylinder. The stator pressing cylinder is connected with a stator pressing block, the left jacking cylinder is rightwards connected with a left tip, the right jacking cylinder is leftwards connected with a right tip, and the left tip and the right tip are located on the same horizontal line; a square through hole is formed in the middle of the workbench, a rotor lifting cylinder is vertically arranged below the square through hole, and the rotor lifting cylinder is upwards connected with a rotor tool; a left jacking air cylinder is arranged above the left side of the square through hole and horizontally connected with a left tip rightwards. A stator tool is arranged above the right side of the square through hole, a right jacking air cylinder is arranged above the right side of the stator tool, and the right jacking air cylinder is horizontally connected with a right tip leftwards; the stator pressing cylinder is vertically arranged on the rear side of the stator tool; and the end part of a piston rod of the stator pressing cylinder is connected with the side edge of the stator pressing block. The structure is compact, and concentricity press fitting can be kept when the outer diameter of the rotor is close to the inner diameter of the stator.

Description

Technical Field

[0001] The present invention relates to the field of small and micro motor assembly equipment, and in particular to a small and micro motor stator and rotor assembly equipment. Background Art

[0002] In recent years, with the increasing number of electric products, the use of small and micro motors is also increasing. The assembly process of this type of motor includes: inspection and preparation of various parts, installation of the stator in the housing, installation of the rotor on the end cover, installation of the end cover on the housing, and alignment of the rotor and the stator. Due to the small size of the parts of this type of motor, the installation position is required to be more delicate. During the assembly process of the rotor into the stator, the rotor surface must not be allowed to rub against the inner wall surface of the stator to avoid damage to the winding inside the stator. Therefore, at present, most of the assembly work of the stator and rotor of this motor is still manual assembly. Not only is the manual assembly speed slow and the output is low, but it often requires the use of auxiliary tooling that matches the motor to ensure the concentricity of the rotor and stator when assembled, and it also requires a large installation space. This leads to low manual assembly efficiency and high manufacturing costs. Since there are certain differences in the details and operating specifications of the motor assembly by the assemblers, it is difficult to ensure the consistency of the installation quality of the assembled products, which will also have a certain impact on the later use of the motor. Although there are a few companies in the industry that use press-fitting equipment to press-fit the stator and rotor of this type of motor during assembly, it is difficult to maintain the concentricity of the rotor and stator during the press-fitting process, especially for the press-fitting of stators and rotors of small and micro motors where the outer diameter of the rotor is not much different from the inner diameter of the stator. It is even more difficult to ensure the precise concentricity during the installation process.

[0003] In view of this, the inventor conducted in-depth research on the above-mentioned defects in the prior art, and thus came up with this case. Summary of the invention

[0004] In order to solve the above technical problems, we proposed a small and micro motor stator and rotor assembly equipment. This equipment can maintain the concentricity of the rotor and the stator during the pressing process. It has a compact structure and occupies a small space. It can be used for the pressing of stators and rotors of a variety of small and micro motors with rotor outer diameters and stator inner diameters that are not much different.

[0005] To achieve the above object, the technical solution of the present invention is as follows:

[0006] A small and micro motor stator and rotor assembly device, comprising a frame, a workbench, a stator tooling, a stator pressing cylinder, a rotor tooling, a rotor lifting cylinder, a left top-pressing cylinder and a right top-pressing cylinder; the piston rod end of the stator pressing cylinder is connected to a stator pressing block, the piston rod end of the left top-pressing cylinder is connected to a left top to the right, and the piston rod end of the right top-pressing cylinder is connected to a right top to the left, and the left top and the right top are on the same horizontal line;

[0007] The workbench is horizontally arranged on the frame, and a square through hole is opened in the middle of the workbench, and a rotor lifting cylinder is vertically arranged below the square through hole, and the piston rod end of the rotor lifting cylinder is upwardly connected to the rotor tooling, and can drive the rotor tooling to move up and down through the square through hole; a left top pressure cylinder is horizontally arranged above the left workbench of the square through hole, and the left top head of the left top pressure cylinder horizontally connected to the right faces the left side above the square through hole, and can drive the left top to move left and right above the left side of the square through hole; a stator tooling is arranged above the right workbench of the square through hole, and a right top pressure cylinder is arranged above the right workbench of the stator tooling, and the right top head of the right top pressure cylinder horizontally connected to the left faces the top of the stator tooling, and can drive the right top to move left and right above the stator tooling; the stator pressing cylinder is vertically arranged on the rear workbench of the stator tooling, and the piston rod end of the stator pressing cylinder is connected to the side of the stator pressing block, and can drive the stator pressing block to move up and down above the stator tooling.

[0008] Preferably, the stator pressing cylinder is a rotary lifting cylinder, and a connecting block is connected between the piston rod end of the stator pressing cylinder and the stator pressing block, and the stator pressing block can be driven to rotate and lift through the connecting block.

[0009] Preferably, the lower surface of the stator pressing block is an arc-shaped surface, and the curvature of the arc-shaped surface is consistent with the curvature of the stator surface to be pressed and fixed.

[0010] Preferably, a rotor temporary storage table is provided at the front middle side of the workbench, and a plurality of rotor temporary storage stations are provided on the rotor temporary storage table.

[0011] Preferably, a stator temporary storage table is provided on the right side of the rear portion of the workbench, and a plurality of stator temporary storage stations are provided on the stator temporary storage table.

[0012] Preferably, a push-to-start switch is respectively provided on the workbenches on both sides of the rotor temporary storage table, and the two push-to-start switches are electrically connected in series.

[0013] Preferably, an emergency switch is also provided on the left side of the front portion of the workbench, and the emergency switch is arranged close to the push-to-start switch on the left side of the front portion of the workbench.

[0014] Preferably, a protective cover is provided on the outer periphery above the frame, and the protective cover is arranged at the middle and rear part of the workbench, and isolates the rotor temporary storage table, two push-to-start switches and the emergency switch at the front side of the workbench.

[0015] Preferably, a lifting transparent safety door is provided in the middle of the front side of the protective cover, and the lifting transparent safety door is slidably connected to the slide rails on both sides. The upper part of the slide rail is vertically arranged near the inner side of the front middle part of the protective cover, and the lower part of the slide rail is vertically arranged inside the frame.

[0016] Preferably, a control display screen is also provided on the upper protective cover of the lifting transparent safety door, and a power switch, control buttons and indicator lights are provided below the control display screen.

[0017] Through the above technical scheme, when the stator and rotor assembly equipment of the small and micro motor of the present invention is used to assemble the stator and rotor of the motor to be assembled, the rotor is first placed on the rotor tooling, and the stator of the motor to be assembled is placed on the stator tooling. Then, two push-start switches are pressed down by both hands, and the stator pressing cylinder drives the stator pressing block to press down and fix the stator. The right top-pressing cylinder drives the right top to move to the left, and after passing through the rotor accommodating space in the middle of the stator, the end of the right top again presses against the concave hole at the center of the right end face of the rotor. After the rotor is subjected to the top force of the right top, it moves to the left so that the concave hole at the center of the left end face of the rotor contacts and presses against the end of the left top, and then the rotor lifting cylinder descends to drive the rotor tooling to descend so that it is separated from the rotor. Finally, the piston rod of the right top-pressing cylinder drives the right top to retract to the right, and at the same time, the piston rod of the left top-pressing cylinder extends to drive the left top to press the rotor to the right to press the rotor into the rotor accommodating space in the stator, so that the rotor and the stator are pressed together while maintaining concentricity. Therefore, this small and micro motor stator and rotor assembly equipment can maintain the concentricity of the rotor and the stator during the press-fitting process. At the same time, it has a fast press-fitting speed and high assembly accuracy. It has a compact structure and occupies a small space. It can be used for the press-fitting of a variety of small and micro motor stators and rotors whose rotor outer diameters and stator inner diameters are not much different. It can be seen that it has the advantages of simplicity, practicality and excellent functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A three-dimensional diagram of a small and micro motor stator and rotor assembly device according to the present embodiment;

[0020] Figure 2 for Figure 1 Side view of

[0021] Figure 3 This is a three-dimensional diagram of a small and micro motor stator and rotor assembly device without a protective cover installed in this embodiment;

[0022] Figure 4 for Figure 3 The main view;

[0023] Figure 5 for Figure 3Side view of

[0024] Figure 6 for Figure 3 A top view of

[0025] Figure 7 This is a front view of the internal structure of a small and micro motor stator and rotor assembly device according to this embodiment;

[0026] Figure 8 for Figure 7 Side view of.

[0027] The numbers in the figure represent the corresponding parts names:

[0028] 1. Frame 2. Workbench 3. Stator fixture 4. Stator clamping cylinder 41. Stator clamping block 42. Connecting block 5. Rotor fixture 6. Rotor lifting cylinder 7. Left top pressure cylinder 71. Left top 8. Right top pressure cylinder 81. Right top 9. Rotor temporary storage table 91. Rotor temporary storage station 10. Stator temporary storage table 11. Stator temporary storage station 12. Press start switch 13. Emergency switch 14. Protective cover 15. Lifting transparent safety door 16. Control display 17. Power switch 18. Control button 19. Indicator light 20. Slide rail 21. Square through hole 22. Stator 23. Rotor DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] The present invention is further described in detail below with reference to examples and specific implementation modes.

[0031] Example

[0032] like Figure 1-8 As shown, a small and micro motor stator and rotor assembly device includes a frame 1, a workbench 2, a stator tooling 3, a stator pressing cylinder 4, a rotor tooling 5, a rotor lifting cylinder 6, a left top-pressing cylinder 7 and a right top-pressing cylinder 8; the piston rod end of the stator pressing cylinder 4 is connected to a stator pressing block 41, the piston rod end of the left top-pressing cylinder 7 is connected to the left with a left top 71, and the piston rod end of the right top-pressing cylinder 8 is connected to the left with a right top 81, and the left top 71 and the right top 81 are on the same horizontal line;

[0033] The workbench 2 is horizontally arranged on the frame 1, and a square through hole 21 is opened in the middle of the workbench 2, and a rotor lifting cylinder 6 is vertically arranged below the square through hole 21, and the piston rod end of the rotor lifting cylinder 6 is upwardly connected to the rotor tooling 5, and can drive the rotor tooling 5 to move up and down through the square through hole 21; a left top pressure cylinder 7 is horizontally arranged above the workbench 2 on the left side of the square through hole 21, and the left top pressure cylinder 7 is horizontally connected to the right with its head facing the left side above the square through hole 21, and can drive the left top pressure cylinder 71 to the left side above the square through hole 21. Move left and right; a stator tooling 3 is arranged above the right workbench 2 of the square through hole 21, and a right top pressure cylinder 8 is arranged above the right workbench 2 of the stator tooling 3. The right top pressure cylinder 8 has a right top point 81 connected horizontally to the left, and its head faces the top of the stator tooling 5, and can drive the right top point 81 to move left and right above the stator tooling 5; the stator clamping cylinder 4 is vertically arranged on the rear workbench 2 of the stator tooling 5, and the piston rod end of the stator clamping cylinder 4 is connected to the side of the stator pressing block 41, and can drive the stator pressing block 41 to move up and down above the stator tooling 5.

[0034] The stator pressing cylinder 4 is a rotary lifting cylinder, and a connecting block 42 is connected between the piston rod end of the stator pressing cylinder 4 and the stator pressing block 41, and the stator pressing block 41 can be driven to swing and lift through the connecting block 42, so as to press and fix or release the stator on the stator fixture 5 from above the stator fixture 5. The lower surface of the stator pressing block 41 is an arc-shaped surface, and the curvature of the arc-shaped surface is consistent with the curvature of the stator surface to be pressed and fixed, so that the contact area between the lower surface of the stator pressing block 41 and the upper surface of the stator can be increased as much as possible, thereby improving the reliability of its fixation.

[0035] At the same time, a rotor temporary storage table 9 is provided at the front middle of the workbench 2, and sixteen rotor temporary storage positions 91 are provided on the rotor temporary storage table 9 to facilitate temporary storage and loading of the rotor. A stator temporary storage table 10 is provided at the right rear of the workbench 2, and four stator temporary storage positions 11 are provided on the stator temporary storage table 10 to facilitate temporary storage and loading of the stator.

[0036] A push-start switch 12 is provided on each of the two side workbenches 2 of the rotor temporary storage table 9, and the two push-start switches 12 are electrically connected in series, so that when the operator starts the equipment, both hands must be pressed at the same time to start the work, thereby ensuring the operator's operating safety and avoiding injury to both hands. An emergency switch 13 is also provided on the left side of the front of the workbench 2, and the emergency switch 13 is arranged close to the push-start switch 12 on the left side of the front of the workbench 2. In this way, when an emergency situation occurs and the machine needs to be shut down, the operator standing in front of the equipment only needs to immediately press the emergency switch 13 with his right hand to stop the equipment from working.

[0037] In order to ensure the safety of personnel outside the equipment without affecting its operation, a protective cover 14 is provided outside the upper part of the frame 1. The protective cover 14 is arranged at the middle and rear part of the workbench, and the rotor temporary storage table 9, two push-start switches 12 and emergency switch 13 are isolated at the front side of the workbench 2. A lifting transparent safety door 15 is provided at the middle part of the front side of the protective cover 14. Both sides of the lifting transparent safety door 15 are slidably connected to the slide rail 20. The upper part of the slide rail 20 is vertically arranged near the inner side of the front middle part of the protective cover 14, and the lower part of the slide rail 20 is vertically arranged inside the frame 1. In this way, the rotor and stator can be loaded separately at the front side of the equipment, and the operation conditions inside the protective cover 14 can be observed conveniently.

[0038] A control display screen 16 is also provided on the protective cover 14 above the lifting transparent safety door 15, and a power switch 17, a control button 18 and an indicator light 19 are provided below the control display screen 16 to facilitate the operator behind the equipment to operate and observe.

[0039] The working principle of the stator-rotor assembly equipment of the micro-motor is as follows: before starting the machine, the operator at the front of the equipment sequentially places the rotor on the rotor temporary storage station 91 on the rotor temporary storage table 9, and sequentially places the stator on the stator temporary storage station 11 on the stator temporary storage table 10. Then the operator at the rear of the equipment starts the power switch 17, presses the control button 18 to open the lifting transparent safety door 15 in front of the equipment, and then the operator at the front of the equipment places the rotor on the rotor fixture 5, and the operator at the rear of the equipment takes the stator to the stator fixture 3. Then the operator at the front of the equipment presses the two push-start switches 12 with both hands, and the lifting transparent safety door 15 is closed. The stator clamping cylinder 4 drives the connecting block 42 and the stator pressing block 41 to rotate to the top of the stator 22 on the stator fixture 3, and then the stator pressing block 41 is pressed down so that the arc surface of the lower surface of the stator pressing block 41 contacts and presses the top surface of the stator 22 to fix the stator 22. Then the right top pressure cylinder 8 drives the right top 81 to move to the left, and after passing through the rotor accommodation space in the middle of the stator 22, the end of the right top 81 presses against the concave hole at the center of the right end face of the rotor 23 on the rotor fixture 5. After receiving the pressing force of the right top 81, the rotor 23 moves to the left so that the concave hole at the center of the left end face of the rotor 23 contacts and presses against the end of the left top 71, and then the rotor lifting cylinder 6 descends to drive the rotor fixture 5 to descend and separate from the rotor 23. Finally, the piston rod of the right top pressure cylinder 8 drives the right top 81 to retract to the right, and at the same time, the piston rod of the left top pressure cylinder 7 extends to drive the left top 71 to press the rotor 23 to the right to press the rotor 23 into the rotor accommodation space in the stator 22, thereby completing the press assembly of the rotor 23 and the stator 22 while maintaining concentricity, completing a working cycle, and continuing the operation in sequence.

[0040] In this example, the small and micro motor stator and rotor assembly equipment of the present invention is provided with a square through hole 21 in the middle of the workbench 2, and a rotor lifting cylinder 6 is vertically arranged below the square through hole 21. The piston rod end of the rotor lifting cylinder 6 is upwardly connected to a rotor tooling 5 for carrying the motor rotor to be assembled, and can drive the rotor tooling 5 to move up and down through the square through hole 21; a left top pressure cylinder 7 is horizontally arranged above the workbench 2 on the left side of the square through hole 21, and the left top pressure cylinder 7 is horizontally connected to the right with its head facing the left side above the square through hole 21, and can drive the left top pressure cylinder 71 to move above the left side of the square through hole 21. Left and right movement; a stator fixture 3 for carrying the motor stator to be assembled is arranged above the right workbench 2 of the square through hole 21, and a right top-pressing cylinder 8 is arranged above the right workbench 2 of the stator fixture 3. The right top-pressing cylinder 8 has its head of the right top 81 connected horizontally to the left facing the top of the stator fixture 3, and can drive the right top 81 to move left and right above the stator fixture 3; the stator clamping cylinder 4 is vertically arranged on the rear workbench 2 of the stator fixture 3, and the piston rod end of the stator clamping cylinder 4 is connected to the side of the stator pressing block 41 through the connecting block 42, and can drive the stator pressing block 41 to move up and down above the stator fixture 3. Before assembling the motor rotor to be assembled, first place the rotor on the rotor fixture 5, and place the motor stator to be assembled on the stator fixture 3. Then, two push-start switches 12 are pressed manually with both hands, and the stator clamping cylinder 4 drives the stator pressing block 41 to press down and fix the stator. The right top-pressing cylinder 8 drives the right top 81 to move to the left, and after passing through the rotor accommodation space in the middle of the stator, the end of the right top 81 presses against the concave hole at the center of the right end face of the rotor. The rotor moves to the left after receiving the top force of the right top 81, so that the concave hole at the center of the left end face of the rotor contacts and presses against the end of the left top 71, and then the rotor lifting cylinder 6 descends and drives the rotor tooling 5 to descend and separate from the rotor. Finally, the piston rod of the right top-pressing cylinder 8 drives the right top 81 to retract to the right, and at the same time, the piston rod of the left top-pressing cylinder 7 extends to drive the left top 71 to press the rotor to the right to press the rotor into the rotor accommodation space in the stator, so that the rotor and the stator are pressed together while maintaining concentricity. It can be seen that the small and micro motor stator and rotor assembly equipment can maintain the concentricity of the rotor and the stator during the press-fitting process, and at the same time, it has a fast press-fitting speed, high assembly accuracy, compact structure, and small space occupation. It can be used for the press-fitting of various small and micro motor stators and rotors with similar rotor outer diameters and stator inner diameters. It can be seen that it has the advantages of simplicity, practicality, and excellent functions. The purpose of novel design, reasonable structure, and good application effect has been achieved.

[0041] The above is only a preferred embodiment of a small and micro motor stator and rotor assembly device of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the creative concept of the present invention, which all fall within the scope of protection of the present invention.

Claims

1. A small and micro motor stator and rotor assembly device, characterized in that: It includes a frame, a workbench, a stator tooling, a stator pressing cylinder, a rotor tooling, a rotor lifting cylinder, a left top-pressing cylinder and a right top-pressing cylinder; the end of the piston rod of the stator pressing cylinder is connected to a stator pressing block, the end of the piston rod of the left top-pressing cylinder is connected to the left with a left top, and the end of the piston rod of the right top-pressing cylinder is connected to the left with a right top, and the left top and the right top are on the same horizontal line; The workbench is horizontally arranged on the frame, and a square through hole is opened in the middle of the workbench, and a rotor lifting cylinder is vertically arranged below the square through hole, and the piston rod end of the rotor lifting cylinder is upwardly connected to the rotor tooling, and can drive the rotor tooling to move up and down through the square through hole; a left top pressure cylinder is horizontally arranged above the left workbench of the square through hole, and the left top head of the left top pressure cylinder horizontally connected to the right faces the left side above the square through hole, and can drive the left top to move left and right above the left side of the square through hole; a stator tooling is arranged above the right workbench of the square through hole, and a right top pressure cylinder is arranged above the right workbench of the stator tooling, and the right top head of the right top pressure cylinder horizontally connected to the left faces the top of the stator tooling, and can drive the right top to move left and right above the stator tooling; the stator pressing cylinder is vertically arranged on the rear workbench of the stator tooling, and the piston rod end of the stator pressing cylinder is connected to the side of the stator pressing block, and can drive the stator pressing block to move up and down above the stator tooling.

2. The small and micro motor stator and rotor assembly equipment according to claim 1 is characterized in that: The stator pressing cylinder is a rotary lifting cylinder, and a connecting block is connected between the piston rod end of the stator pressing cylinder and the stator pressing block, and the stator pressing block can be driven to rotate and move up and down through the connecting block.

3. The small and micro motor stator and rotor assembly equipment according to claim 2 is characterized in that: The lower surface of the stator pressing block is an arc-shaped surface, and the curvature of the arc-shaped surface is consistent with the curvature of the stator surface to be pressed and fixed.

4. The stator and rotor assembly equipment for small and micro motors according to claim 3 is characterized in that: A rotor temporary storage table is arranged at the front middle side of the workbench, and a plurality of rotor temporary storage stations are arranged on the rotor temporary storage table.

5. The small and micro motor stator and rotor assembly equipment according to claim 4, characterized in that: A stator temporary storage table is provided on the right side of the rear part of the workbench, and a plurality of stator temporary storage stations are provided on the stator temporary storage table.

6. The small and micro motor stator and rotor assembly equipment according to claim 5, characterized in that: A push-to-start switch is respectively provided on the workbenches on both sides of the rotor temporary storage table, and the two push-to-start switches are electrically connected in series.

7. The small and micro motor stator and rotor assembly equipment according to claim 6, characterized in that: An emergency switch is also provided on the left side of the front portion of the workbench, and the emergency switch is arranged close to the push-to-start switch on the left side of the front portion of the workbench.

8. The small and micro motor stator and rotor assembly equipment according to claim 7, characterized in that: A protective cover is provided on the outer periphery above the frame, and the protective cover is arranged at the middle and rear part of the workbench, and isolates the rotor temporary storage table, two push-to-start switches and the emergency switch at the front side of the workbench.

9. The small and micro motor stator and rotor assembly equipment according to claim 8, characterized in that: A lifting transparent safety door is provided in the middle of the front side of the protective cover. Both sides of the lifting transparent safety door are slidably connected to the slide rails. The upper part of the slide rails is vertically arranged near the inner side of the front middle part of the protective cover, and the lower part of the slide rails is vertically arranged inside the frame.

10. The small and micro motor stator and rotor assembly equipment according to claim 9, characterized in that: A control display screen is also provided on the upper protective cover of the lifting transparent safety door, and a power switch, a control button and an indicator light are provided below the control display screen.

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