An assembly equipment for producing three-phase asynchronous motors

Abstract

The present invention discloses an assembly device for producing three-phase asynchronous motors, and relates to the technical field of three-phase asynchronous motor production equipment. The present invention includes a base, wherein a sliding hole is provided inside the top wall plate, and the inner diameter of the sliding hole is the same as the inner diameter of the motor housing. A ball screw slide rail module is provided on the top of the base, and a right slide and a left slide are fixedly mounted on the ball screw slide rail module, and the top wall plate is located between the right slide and the left slide. The thread ends of the stator winding of the present invention are clamped on the wire clamp head of the positioning rocker. When the stator winding is clamped by the left clamping cylinder and the right clamping cylinder, the thread ends are protected inside the left clamping cylinder to ensure that the stator winding will not be crushed during assembly. After assembly is completed, the left clamping cylinder is fixed to the stator winding, and the positioning rocker swings under the action of the spring, and the positioning rocker sends the thread ends out of the junction box window on the motor housing, realizing automatic threading and high assembly efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of three-phase asynchronous motor production equipment, and in particular to an assembly equipment for producing three-phase asynchronous motors. Background Art

[0002] Three-phase asynchronous motors are the most commonly used type of motor in modern industrial production, widely used in various types of machinery, conveying equipment, pump systems, and fans. Their high efficiency, simple structure, and strong reliability make them an indispensable core power device in industrial automation and daily life. In the production process of three-phase asynchronous motors, the assembly process is a key link that affects the motor's performance and quality.

[0003] After the stator winding is manufactured, there are usually wire ends. The wire ends refer to the end parts of the winding wires. The wire ends are usually used for subsequent wiring work and for connecting with other components (such as motor terminal boxes, terminal blocks, etc.). This means that during the press-fitting process of the stator winding, a protective tube needs to be put on the wire ends, and then the other end of the protective tube needs to be passed through the terminal box window on the motor housing to ensure that the wire ends are not crushed when the stator winding is pressed together. After the stator winding is pressed together, the wire ends need to be manually pulled out of the terminal box window and combed, which makes the assembly steps complicated. At the same time, the existing stator winding and motor housing assembly equipment mainly adopts direct pressing. During the direct pressing process, if the pressure is too high, it may cause stress concentration in the stator material, affecting the performance and life of the stator. In addition, the uneven pressing process will cause inaccurate fit between the stator and the housing, thereby affecting the air gap between the rotor and the stator and affecting the motor's operating efficiency. Summary of the Invention

[0004] The purpose of the present invention is to solve the above problems and provide an assembly device for producing a three-phase asynchronous motor.

[0005] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0006] An assembly device for producing a three-phase asynchronous motor includes a base, two sets of motor housing positioning plates are fixedly installed in the middle of the top of the base, a top wall plate is fixedly installed on the top of the base and on the left side of the motor housing positioning plates, a sliding hole is penetrated through the interior of the top wall plate, and the inner diameter of the sliding hole is the same as the inner diameter of the motor housing, a ball screw slide rail module is provided on the top of the base, a right slide and a left slide are fixedly installed on the ball screw slide rail module, and the top wall plate is located between the right slide and the left slide;

[0007] A clamping hydraulic cylinder is fixedly installed on the right side of the right slide, and a right clamping tube is rotatably installed on the telescopic end of the clamping hydraulic cylinder. A rotating motor is fixedly installed on the left side of the left slide, and a left clamping tube is fixedly installed on the output end of the rotating motor. The left clamping tube passes through the sliding hole, and an inner support rod is fixedly installed at the center of the left clamping tube. Multiple groups of positioning rocker arms are hinged on the outer side of the inner support rod, and the multiple groups of positioning rocker arms are distributed in a fan shape. The center of the fan shape is on the axis of the inner support rod. The positioning rocker arm is V-shaped, and a wire clamp is provided at the left end of the positioning rocker arm. A spring is provided at the hinge center of the positioning rocker arm, and the spring is used to drive the right end of the positioning rocker arm to swing horizontally.

[0008] Furthermore, multiple groups of balls are annularly arranged on the outer surfaces of the left clamping cylinder and the right clamping cylinder.

[0009] Furthermore, six groups of positioning rocker arms are provided.

[0010] Furthermore, a support plate is provided at the right end of the inner support rod, six sets of hinge joints are provided on the right side of the support plate, and the positioning rocker arm is hinged in the hinge joints.

[0011] Furthermore, a limiting slot is provided on the left side of the hinge joint, and when the positioning rocker arm swings into the limiting slot, the stator winding presses against the left clamping cylinder.

[0012] Furthermore, the inner width of the hinged joint is greater than the width of the positioning rocker.

[0013] Furthermore, a top clamping hydraulic cylinder is fixedly installed on the top of the base, and the top clamping hydraulic cylinder is located on the inner side of the motor housing positioning plate.

[0014] Furthermore, a transmission groove is opened inside the base, and the ball screw slide rail module includes a driving screw, a slide rail and a slider. The driving screw is rotatably installed in the transmission groove, and the driving screw is driven by a motor. The slide rail is fixedly installed on the top of the base, and two groups of slide rails are provided. The two groups of slide rails are respectively located on both sides of the top wall plate. The slider is slidably connected to the slide rails, and the right slide and the left slide are respectively fixedly installed on the corresponding sliders. The bottom of the right slide and the left slide are provided with ball nuts, and the ball nuts are engaged with the driving screw.

[0015] The beneficial effects of the present invention are as follows:

[0016] 1. The present invention sleeves the stator winding on the positioning rocker arm and then pushes the stator winding. The stator winding drives the positioning rocker arm to swing. The positioning rocker arm causes the stator winding to be concentrically pressed against the left clamping cylinder. The clamping hydraulic cylinder is then controlled to operate. The clamping hydraulic cylinder drives the right clamping cylinder to press against the stator winding to achieve positioning and clamping of the stator winding. The left clamping cylinder is then driven to rotate by a rotating motor. The left clamping cylinder drives the stator winding to rotate. The stator winding can be pressed into the motor housing in a rotational manner through the coordinated use of a ball screw slide module. During the rotational assembly process, the coordination between the stator and the housing is gradually completed, which will not cause excessive compression or stress on the stator, is beneficial to protecting the structure of the stator and avoiding damage thereof, and has high assembly precision.

[0017] 2. The wire ends of the stator winding of the present invention are clamped on the wire clamp heads of the positioning rocker arm. When the stator winding is clamped by the left clamping cylinder and the right clamping cylinder, the wire ends are protected inside the left clamping cylinder to ensure that the stator winding will not be crushed during assembly. After the assembly is completed, the left clamping cylinder clamps the stator winding, and the positioning rocker arm swings under the action of the spring sheet. The positioning rocker arm sends the wire ends out of the junction box window on the motor housing, realizing automatic threading and high assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the assembly of the three-phase asynchronous motor housing and stator windings of the present invention;

[0019] Figure 2 It is a three-dimensional schematic diagram of the assembly equipment of the present invention;

[0020] Figure 3 This invention Figure 2 Schematic diagram of the cross-sectional structure of the motor housing;

[0021] Figure 4 This invention Figure 3 Schematic diagram of stator winding structure;

[0022] Figure 5 This is a schematic diagram of the structure of the inner support rod and the positioning swing rod of the present invention;

[0023] Figure 6 This is a schematic diagram of the inner support rod structure of the present invention;

[0024] Figure 7 2. It is a schematic diagram of the positioning swing arm structure of the present invention;

[0025] Figure 8 It is a schematic diagram of the process of positioning the top line of the swing arm of the present invention.

[0026] Figure markings: 1. Base; 101. Transmission groove; 102. Driving screw; 103. Slide rail; 104. Slider; 2. Motor housing positioning plate; 3. Top wall plate; 4. Right slide; 5. Clamping hydraulic cylinder; 6. Right clamping tube; 7. Left slide; 8. Rotating motor; 9. Left clamping tube; 10. Ball bearing; 11. Inner support rod; 12. Support plate; 13. Articulated head; 14. Limiting groove; 15. Positioning rocker arm; 16. Wire clamp; 17. Top clamping hydraulic cylinder. DETAILED DESCRIPTION

[0027] To make the objectives, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0028] Example 1, as Figures 1-8 As shown, an assembly device for producing a three-phase asynchronous motor includes a base 1, two sets of motor housing positioning plates 2 are fixedly installed in the middle of the top of the base 1, a top wall plate 3 is fixedly installed on the top of the base 1 and on the left side of the motor housing positioning plates 2, a sliding hole is opened through the interior of the top wall plate 3, and the inner diameter of the sliding hole is the same as the inner diameter of the motor housing, a ball screw slide module is provided on the top of the base 1, a right slide 4 and a left slide 7 are fixedly installed on the ball screw slide module, and the top wall plate 3 is located between the right slide 4 and the left slide 7;

[0029] A clamping hydraulic cylinder 5 is fixedly installed on the right side of the right slide 4, and a right clamping tube 6 is rotatably installed on the telescopic end of the clamping hydraulic cylinder 5. A rotating motor 8 is fixedly installed on the left side of the left slide 7. The rotating motor 8 consists of a motor and a reducer. The output end of the rotating motor 8 is fixedly installed with a left clamping tube 9. The left clamping tube 9 passes through the sliding hole. An inner support rod 11 is fixedly installed at the center of the left clamping tube 9. The outer side of the inner support rod 11 is hinged with multiple groups of positioning rocker arms 15. The multiple groups of positioning rocker arms 15 are distributed in a fan shape, and the center of the fan shape is on the axis of the inner support rod 11. The positioning rocker arm 15 is V-shaped. A wire clamp 16 is provided at the left end of the positioning rocker arm 15, and a spring is provided at the hinge center of the positioning rocker arm 15. The spring is used to drive the right end of the positioning rocker arm 15 to swing horizontally.

[0030] A top clamping hydraulic cylinder 17 is fixedly mounted on the top of the base 1 , and the top clamping hydraulic cylinder 17 is located on the inner side of the motor housing positioning plate 2 .

[0031] The assembly steps are as follows:

[0032] Motor housing positioning: Place the motor housing feet between the motor housing positioning plates 2 to position the motor housing. Then, control the top clamping hydraulic cylinder 17 to clamp the motor housing on the top wall plate 3. Control the ball screw slide module to operate. The ball screw slide module drives the left slide 7 to move right. The left slide 7 drives the left clamping cylinder 9 to move right. The left clamping cylinder 9 passes through the motor housing.

[0033] Stator winding clamping: Initially, the right end of the positioning rocker 15 swings horizontally under the action of the spring, and the wire clamp 16 is located outside the left clamping tube 9. Then the stator winding is sleeved on the positioning rocker 15. The stator winding is initially hung on the positioning rocker 15. It should be noted that the elastic force of the spring is sufficient to support the positioning rocker 15 to hang the stator winding. Then the wire end is pressed into the wire clamp 16, and the wire clamp 16 passes through the stator winding coil part. Then the clamping hydraulic cylinder 5 is controlled to operate, and the clamping hydraulic cylinder 5 Drive the right clamping cylinder 6 close to the stator winding, the right clamping cylinder 6 pushes the stator winding close to the left clamping cylinder 9, and the stator winding pushes the positioning swing rod 15 to swing. Since the positioning swing rod 15 is designed in a V shape with an angle of 90 degrees, the positioning swing rod 15 will push the stator winding up, so that the center of the stator winding coincides with the center of the left clamping cylinder 9. Then the right clamping cylinder 6 and the left clamping cylinder 9 cooperate to center the stator winding, and the wire clamp head 16 swings into the left clamping cylinder 9 to prevent the subsequent wire ends from being crushed;

[0034] Press-fitting: Control the operation of the ball screw slide module, which drives the right slide 4 and the left slide 7 to run synchronously in the same direction. The right slide 4 and the left slide 7 drive the stator winding into the motor housing through the right clamping cylinder 6 and the left clamping cylinder 9. At the same time, the rotating motor 8 drives the left clamping cylinder 9 to rotate, and the left clamping cylinder 9 drives the stator winding to rotate. The stator winding is screwed into the motor housing. During the rotating assembly process, the cooperation between the stator and the housing is gradually completed, which will not cause excessive compression or stress on the stator, which is beneficial to protecting the structure of the stator and avoiding damage. The assembly accuracy is high. In this process, after the press-fitting is completed, the positioning rocker 15 is rotated to face the wiring window of the motor housing. The positioning rocker 15 can be used to judge whether the stator winding is installed in place, further improving the installation accuracy.

[0035] Threading: Control the operation of the clamping hydraulic cylinder 5, which drives the right clamping cylinder 6 away from the stator winding, and then control the operation of the ball screw slide module. Control the operation of the ball screw slide module drives the right slide 4 and the left slide 7 to run synchronously in the same direction, and the left slide 7 drives the left clamping cylinder 9 away from the stator winding. At this time, the positioning rocker 15 moves to the left relative to the positioning winding, and the positioning rocker 15 swings downward under the joint action of the positioning winding and the spring, and the right end swings to the horizontal. The left end of the positioning rocker 15 drives the wire clamp 16 to pass through the wiring window of the motor housing to complete the threading, and then remove the wire end from the wire clamp 16, and then continue to control the left clamping cylinder 9 away from the stator winding. The left end of the positioning rocker 15 swings downward under the push of the motor housing wiring window. When the positioning rocker 15 is away from the motor housing, the assembled motor housing can be removed. The assembly is simple.

[0036] Embodiment 2, based on the above embodiment, further includes that the outer surfaces of the left clamping cylinder 9 and the right clamping cylinder 6 are both annularly provided with multiple groups of balls 10. Through the arrangement of the balls 10, the friction between the left clamping cylinder 9, the right clamping cylinder 6 and the motor housing is reduced, and the pressing efficiency is higher.

[0037] Embodiment 3, based on the above embodiment, further includes that six groups of positioning rocker arms 15 are provided, and six groups of wire ends of a three-phase asynchronous motor are generally provided.

[0038] Embodiment 4, based on the above embodiment, further includes: a support plate 12 is provided at the right end of the inner support rod 11, six groups of hinge joints 13 are provided on the right side of the support plate 12, and the positioning rocker 15 is hinged in the hinge joint 13. Through this design, the inner support rod 11 will not affect the swing of the positioning rocker 15.

[0039] Furthermore, a limiting slot 14 is provided on the left side of the hinged joint 13. When the positioning rocker arm 15 swings into the limiting slot 14, the stator winding is pressed against the left clamping cylinder 9. The setting of the limiting slot 14 can limit the swing angle of the positioning rocker arm 15, so that the centering clamping of the stator winding is more accurate and stable.

[0040] Embodiment 5, based on the above embodiment, further includes that the inner width of the hinged joint 13 is larger than the width of the positioning rocker 15. Through this design, the position of the positioning rocker 15 can be fine-tuned so that the wire clamp 16 on the positioning rocker 15 can pass through the stator winding coil more easily.

[0041] Embodiment 6, on the basis of the above embodiment, further includes: a transmission groove 101 is opened inside the base 1, and the ball screw slide rail module includes a driving screw 102, a slide rail 103 and a slider 104, the driving screw 102 is rotatably installed in the transmission groove 101, the driving screw 102 is driven by a motor, the slide rail 103 is fixedly installed on the top of the base 1, and two groups of slide rails 103 are provided, the two groups of slide rails 103 are respectively located on both sides of the top wall plate 3, the slider 104 is slidably connected to the slide rail 103, the right slide 4 and the left slide 7 are respectively fixedly installed on the corresponding slider 104, and the bottom of the right slide 4 and the left slide 7 are provided with ball nuts, which are engaged with the driving screw 102.

[0042] The motor controls the driving screw 102 to run, and the driving screw 102 drives the right slide 4 and the left slide 7 to run synchronously in the same direction through the ball nut.

[0043] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An assembly device for producing a three-phase asynchronous motor, comprising a base (1), characterized in that: Two sets of motor housing positioning plates (2) are fixedly installed in the middle of the top of the base (1), a top wall plate (3) is fixedly installed on the top of the base (1) and on the left side of the motor housing positioning plate (2), a sliding hole is opened inside the top wall plate (3), and the inner diameter of the sliding hole is the same as the inner diameter of the motor housing, a ball screw slide rail module is provided on the top of the base (1), a right slide (4) and a left slide (7) are fixedly installed on the ball screw slide rail module, the right slide (4) and the left slide (7) run synchronously in the same direction, and the top wall plate (3) is located between the right slide (4) and the left slide (7); A clamping hydraulic cylinder (5) is fixedly installed on the right side of the right slide (4), and a right clamping cylinder (6) is rotatably installed on the telescopic end of the clamping hydraulic cylinder (5). A rotating motor (8) is fixedly installed on the left side of the left slide (7), and a left clamping cylinder (9) is fixedly installed on the output end of the rotating motor (8). The left clamping cylinder (9) passes through the sliding hole, and an inner support rod (11) is fixedly installed at the center of the left clamping cylinder (9). The outer side of the inner support rod (11) is hinged with multiple groups of positioning swing rods (15). The multiple groups of positioning swing rods (15) are distributed in a fan shape, and the center of the fan shape is on the axis of the inner support rod (11). The positioning swing rod (15) is designed in a V shape. A wire clamp (16) is provided at the left end of the positioning swing rod (15). A spring is provided at the hinge center of the positioning swing rod (15). The spring is used to drive the right end of the positioning swing rod (15) to swing horizontally.

2. The assembly equipment for producing three-phase asynchronous motors according to claim 1, characterized in that: Multiple groups of balls (10) are provided in an annular manner on the outer surfaces of the left clamping cylinder (9) and the right clamping cylinder (6).

3. The assembly equipment for producing three-phase asynchronous motors according to claim 1, characterized in that: The positioning rocker rods (15) are provided in six groups.

4. The assembly equipment for producing three-phase asynchronous motors according to claim 3, characterized in that: A support plate (12) is provided at the right end of the inner support rod (11), six sets of hinged joints (13) are provided on the right side of the support plate (12), and the positioning rocker (15) is hinged in the hinged joints (13).

5. The assembly equipment for producing three-phase asynchronous motors according to claim 4, characterized in that: A limiting slot (14) is provided on the left side of the hinge joint (13); when the positioning rocker (15) swings into the limiting slot (14), the stator winding presses against the left clamping cylinder (9).

6. The assembly equipment for producing three-phase asynchronous motors according to claim 5, characterized in that: The inner width of the hinged joint (13) is greater than the width of the positioning rocker (15).

7. The assembly equipment for producing three-phase asynchronous motors according to claim 1, characterized in that: A top clamping hydraulic cylinder (17) is fixedly mounted on the top of the base (1), and the top clamping hydraulic cylinder (17) is located on the inner side of the motor housing positioning plate (2).

8. The assembly equipment for producing three-phase asynchronous motors according to claim 1, characterized in that: A transmission groove (101) is provided inside the base (1), and the ball screw slide rail module includes a driving screw (102), a slide rail (103) and a slider (104). The driving screw (102) is rotatably installed in the transmission groove (101), and the driving screw (102) is driven by a motor. The slide rail (103) is fixedly installed on the top of the base (1), and two groups of slide rails (103) are provided. The two groups of slide rails (103) are respectively located on both sides of the top wall plate (3). The slider (104) is slidably connected to the slide rail (103). The right slide (4) and the left slide (7) are respectively fixedly installed on the corresponding slider (104). The bottoms of the right slide (4) and the left slide (7) are both provided with ball nuts, and the ball nuts are engaged with the driving screw (102).

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