Semi-automatic short circuit ring pressing equipment for motor

Abstract

The invention relates to the technical field of short circuit ring assembly, and discloses a semi-automatic short circuit ring pressing device for a motor, which comprises a workbench, a belt conveyor is mounted at the top of the workbench, an angle plate is fixedly connected to the top of the belt conveyor, and a transmission assembly component for improving the placement precision of a short circuit ring is arranged above the belt conveyor. The transmission assembly component comprises a plurality of transmission belts for placing the short-circuit rings through self transmission thrust, high-precision placement of the short-circuit rings is achieved through transmission of the transmission belts to the short-circuit rings, the problem of contact between the short-circuit rings and the stator iron core is solved, firstly, the transmission belts ensure the stability of the short-circuit rings in the placement process, and the transmission efficiency of the short-circuit rings is improved; and the short circuit ring is accurately conveyed into the stator iron core through a transmission mechanism, so that the position deviation caused by manual operation is effectively avoided, the electrical performance of the motor is improved, the contact resistance is reduced, the local heating phenomenon is reduced, and the efficiency of the motor is favorably improved.

Description

Technical Field

[0001] The invention relates to the technical field of short-circuit ring stator assembly, in particular to a semi-automatic short-circuit ring pressing device for a motor. Background Art

[0002] The motor short-circuit ring assembly device manually places the short-circuit ring and then uses a machine to press it and fix it on the stator core. This device improves the assembly efficiency of the short-circuit ring, reduces labor intensity, and effectively improves the production efficiency and product quality of the motor.

[0003] However, there are still some problems with the existing motor short-circuit ring assembly device: First, in the process of manually placing the short-circuit ring on the stator, it is difficult to achieve high-precision requirements in manual operation, and the short-circuit ring is often placed with one end higher than the other end. In the subsequent pressing process, since the assembly device provides uniform pressure, the two sides of the short-circuit ring are not parallel, which results in the short-circuit ring being unable to fully contact the stator core. From the perspective of electrical performance, the inability of the short-circuit ring to fully contact the stator core will increase the contact resistance. During the operation of the motor, this will lead to increased local heating. Excessive heat will not only reduce the efficiency of the motor, but also damage the insulating material of the motor and shorten the service life of the motor. In addition, this incomplete contact will affect the magnetic field distribution of the motor, increase the torque fluctuation of the motor, and further affect the stability and reliability of the motor, resulting in problems such as increased vibration and increased noise during the operation of the motor.

[0004] Secondly, in the process of manually placing the short-circuit ring, the operator not only needs to pick up the short-circuit ring, but also needs to place it in the slot inside the stator core. The short-circuit ring is usually made of metal material with sharp edges. During manual operation, the hands frequently come into contact with the short-circuit ring, which inevitably increases the risk of scratching the hands. For the operator, hand injuries will cause physical pain, affecting their normal work, requiring wound treatment or even medical treatment, which leads to loss of working time and reduced production efficiency. From the perspective of the enterprise, employee hand injuries are industrial accidents, and the enterprise needs to bear the corresponding medical expenses and industrial injury compensation expenses, which increases the operating costs of the enterprise.

[0005] Secondly, during the short-circuit ring pressing process, due to differences in manufacturing precision and raw material batches, there will be certain differences in the mass and volume of each short-circuit ring, and during the pressing process, this difference will be magnified. This is because the existing technology uses cylinder-driven pressing, and the short-circuit ring is easy to be pressed. Therefore, under the same pressing force, short-circuit rings with different masses and volumes will have different internal structures and material distribution differences, which will lead to different abilities to resist deformation, resulting in different deformation conditions.

[0006] This situation means that although the surface of the short-circuit ring appears to be flattened after pressing, the stress inside the material itself is not the same. During the operation of the motor, the uneven stress will cause the short-circuit ring to deform slightly, thereby affecting its contact state with the stator core. Once the contact state is affected, the contact resistance will increase, and more heat will be generated when current passes through, causing local overheating of the motor. Local overheating will not only reduce the efficiency of the motor, but also damage the insulation material of the motor and shorten the service life of the motor.

[0007] In addition, uneven stress in the short-circuit ring will affect its electromagnetic properties such as magnetic permeability. This is because uneven stress will change the arrangement of the microstructure inside the short-circuit ring, thereby affecting the magnetic permeability. After the magnetic permeability changes, it will disrupt the magnetic field distribution inside the motor, causing the torque fluctuation of the motor to increase. Torque fluctuation will cause unstable motor operation, which is specifically manifested as increased vibration and noise. Vibration will loosen the motor components, further affecting the reliability and safety of the motor.

[0008] To this end, the present invention provides a semi-automatic short-circuit ring pressing device for a motor. Summary of the invention

[0009] The object of the present invention is to provide a semi-automatic short-circuit ring pressing device for a motor to solve the problems raised in the above background technology.

[0010] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a semi-automatic short-circuit ring pressing device for a motor, comprising a workbench, a belt conveyor is installed on the top of the workbench, a corner plate is fixedly connected to the top of the belt conveyor, and a transmission assembly component for improving the placement accuracy of the short-circuit ring is arranged above the belt conveyor, and the transmission assembly component includes a plurality of transmission belts for placing the short-circuit ring through the thrust transmitted by themselves.

[0011] Preferably, the transmission assembly component also includes a base, which is fixedly connected to the top of the angle plate, and two connecting shells are fixedly connected to the top of the base, and each of the connecting shells is rotatably connected to a plurality of rotating shafts, and every two of the transmission belts are arranged in an upper and lower position as a group, and each group of the transmission belts is drivingly connected to the outer surface of the rotating shaft.

[0012] Preferably, the inner walls of the connecting shell are symmetrically provided with rotating grooves, which are divided into two parts with the bending part of the connecting shell being set as the dividing line. The inside of the rotating grooves are linearly and equidistantly arranged with a plurality of rotating ball connecting rods rotatably connected thereto, and the outer surfaces of the rotating ball connecting rods are linearly and equidistantly arranged with a plurality of protrusions fixedly connected thereto, and the side of the protrusions away from the center of the rotating ball connecting rods is chamfered, and the protrusions are made of elastic material, specifically silicone material.

[0013] Preferably, the rotating shafts at the bending part of the connecting shell pass through its surface, and gears are fixedly connected on both sides thereof, the gears are meshed with each other, and couplings are installed between the gears close to each other, which are specifically implemented as parallel eccentric couplings. A motor is installed on the outer surface of any one of the gears, and the bottom of the motor is fixedly connected to the outer surface of the connecting shell.

[0014] Preferably, the outer wall of the workbench is fixedly connected to a machine table, an electric control console is installed on the upper surface of the machine table, a carrying platform is installed on the top of the machine table, an assembly unit is installed on the top of the carrying platform, the assembly unit is composed of several cylinders, and a pressing block is installed at the bottom of the output shaft of each cylinder, and the assembly unit and the belt conveyor are both electrically controlled to start and stop by the electric control console.

[0015] Preferably, a rotating module is installed below the carrying platform, and a pushing module is installed outside the carrying platform. Both the rotating module and the pushing module are electrically controlled to start and stop by an electric control console.

[0016] Preferably, an air compression component for improving the uniformity of short-circuit ring pressing is provided below the assembly unit, and the air compression component includes a plurality of compression chambers that provide different pressing forces by compressing the internal space to a certain extent, and the interior of each compression chamber is slidably connected with an assembly block.

[0017] Preferably, every two compression bins are arranged as a group, and each group of compression bins is obliquely and symmetrically opened at the bottom of the pressing block, a compression spring is fixedly connected between the compression bin and the assembly block, a limiting shell is fixedly connected inside each compression bin and concentrically with the compression spring, and a buffer sleeve is fixedly connected to the inner wall of each compression bin and between the assembly block.

[0018] Preferably, the interior of the compression chamber is filled with air, a plurality of strip-shaped protrusions are provided on the surface of the buffer sleeve, and the buffer sleeve and the strip-shaped protrusions on the surface thereof are both made of elastic material, specifically silicone material.

[0019] Preferably, two photoelectric modules are symmetrically installed at the top edge of the belt conveyor, the photoelectric modules are electrically connected to the electric control console, and the photoelectric modules are specifically implemented as grating sensors.

[0020] Preferably, the motor is started and shut down by an electric control console.

[0021] Preferably, the bottom of the pressing block is rectangular and has a plurality of slide grooves arranged at equal intervals, each of the slide grooves is slidably connected to a slide column, and the bottom of the slide column is fixedly connected to a hollow slide plate.

[0022] Preferably, the rotation module includes a dividing motor, a dividing disc and a plurality of positioning seats. The dividing motor is installed inside the workbench. The dividing disc is programmed to control its rotation angle of ninety degrees each time. The dividing disc is installed on the top of the output shaft of the dividing motor. The positioning seats are arranged in a circular shape and equidistantly installed on the top of the dividing disc.

[0023] Preferably, the pushing module includes a plurality of cylinder 2s and pushing bumps, and the plurality of cylinder 2s are equidistantly arranged in a ring with the center of the supporting platform as the center point and are fixedly connected to the top of the machine platform. A support seat is fixedly connected between the bottom of the cylinder 2 closest to the belt conveyor and the workbench, and a connecting column is installed on the top of the cylinder 2 farthest from the electric control console, and the connecting column is located between the bottom of the supporting platform and the cylinder 2.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The present invention realizes high-precision placement of the short-circuit ring and improves the contact problem between the short-circuit ring and the stator core by transmitting the short-circuit ring through the transmission belt. First, the transmission belt not only ensures the stability of the short-circuit ring during the placement process, but also accurately transmits the short-circuit ring to the inside of the stator core through its transmission mechanism, effectively avoiding the position deviation caused by human operation. This improvement improves the electrical performance of the motor, reduces contact resistance, reduces local heating, helps to improve the efficiency of the motor, extends the service life of the motor, optimizes the magnetic field distribution of the motor, reduces torque fluctuations, thereby enhancing the stability and reliability of the motor, and reducing vibration and noise during operation.

[0025] Compared with the prior art, the present invention improves the accuracy and efficiency of short-circuit ring placement. The prior art relies on manual operation, which makes it difficult to achieve high-precision placement and poses safety risks. The conveyor belt in the present invention realizes automatic and precise placement of short-circuit rings through mechanical transmission, which not only improves the accuracy of placement, but also reduces the dependence on operator skills, reducing quality problems and safety risks caused by improper operation.

[0026] Among them: when the short-circuit ring is transported by the conveyor belt, the rotating ball connecting rod and the protrusion can provide additional support and guidance during the transportation of the short-circuit ring, ensuring that the short-circuit ring will not deviate from the track during the transmission process. Because the outer edge of the protrusion is chamfered and made of silicone material, the protrusion can be inserted into the tiny gap on the surface of the short-circuit ring, which can not only ensure the stability of transmission, but also avoid damage to the short-circuit ring, effectively protecting the integrity of the short-circuit ring.

[0027] Among them: when the short-circuit ring is transported to the top of the stator core, since its top is still in contact with the conveyor belt, the transmission force of the conveyor belt will push the short-circuit ring into the stator core, thereby realizing an automated process without manual installation. This design not only simplifies the installation steps, but also improves the accuracy and efficiency of the installation.

[0028] While achieving the above-mentioned beneficial effects, the present invention also has the following advantages: First, the implementation of the present invention greatly reduces the steps of manual operation, thereby reducing the differences caused by manual operation and improving the consistency and reliability of production. At the same time, since the direct contact between the operator and the short-circuit ring is reduced, the risk of accidental injury to the operator is also significantly reduced, thereby ensuring the safety of the operator.

[0029] Secondly, the prior art requires manual placement of short-circuit rings one by one in the stator core, and then placing the stator into a belt conveyor. This process is cumbersome and inefficient. The present invention allows several stator cores to be placed in a belt conveyor at the same time, and then short-circuit rings are placed on them in batches, which greatly improves production efficiency and reduces production costs.

[0030] In summary, the present invention achieves high-precision and automated placement of the short-circuit ring by introducing designs such as a transmission belt, a rotating ball connecting rod and a protruding piece, thereby improving the electrical performance and stability of the motor, reducing safety risks and costs in the production process, and improving production efficiency and product quality.

[0031] The present invention can reduce the change of stress difference inside the short-circuit ring by pressing the short-circuit ring through the assembly block during the pressing process. Since the assembly block is divided into two and corresponds to the short-circuit ring on the stator core respectively, the pressing problem of the short-circuit ring caused by the difference in mass and volume is greatly improved. In the traditional technology, due to the difference in mass and volume of each short-circuit ring, different deformation conditions will occur under the cylinder drive pressing. In the present invention, for the short-circuit ring with slightly larger mass and volume, the assembly block compresses more air inside the compression chamber, thereby providing a higher pressure. For the short-circuit ring with smaller mass, the assembly block compresses less air inside the compression chamber, providing appropriate pressure. This helps to improve the uniformity of the short-circuit ring pressing, thereby improving the stress distribution inside the short-circuit ring, helping to reduce the slight deformation of the short-circuit ring during the operation of the motor, and then improving its contact state with the stator core, reducing contact resistance, reducing heat generation, improving motor efficiency, helping to protect the insulation material of the motor, and extending the service life of the motor.

[0032] Compared with the prior art, the prior art uses cylinder-driven pressing. Since it provides a fixed pressing force, it cannot be adjusted according to the differences in the mass and volume of the short-circuit rings. Different short-circuit rings will produce different deformations under the same pressing force, leading to a series of problems such as uneven internal stress. The assembly block pressing method adopted by the present invention can provide appropriate pressure for different short-circuit rings, avoiding the problem of uneven pressing of short-circuit rings caused by uniform pressing force, and is significantly better than the prior art in terms of pressing effect.

[0033] Among them: the limit shell can prevent the assembly block from over-compressing the air inside the compression chamber by interfering with the assembly block, thereby ensuring that the pressure of the assembly block when pressing the short-circuit ring is within a reasonable range, avoiding excessive deformation of the short-circuit ring due to excessive pressure or excessive compression of the air inside the compression chamber and causing other problems.

[0034] Among them: since the buffer sleeve is located between the inner wall of the compression chamber and the assembly block, and there are several striped protrusions on the surface, the buffer sleeve can provide a sealing effect for the compression chamber, ensuring that the air will not leak when the assembly block compresses the air inside the compression chamber. At the same time, it can also prevent the assembly block from sliding quickly to compress the air, thereby playing a role similar to a damper, which helps the assembly block to stably suppress the short-circuit ring, making the application of pressure more stable and controllable.

[0035] Among them: the parts of the air compression components are all in regular shapes, so they are easy to mass produce. At the same time, these parts are easier to obtain on the market due to their versatility. Finally, since the air compression components are low-cost and easy to operate during maintenance and replacement, the downtime required for maintenance can be shortened, thereby improving overall operating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a front perspective schematic diagram of the main structure of the present invention.

[0037] Figure 2 It is a rear perspective schematic diagram of the main structure of the present invention.

[0038] Figure 3 For the present invention Figure 2 Enlarged three-dimensional schematic diagram of the structure at point A in the middle.

[0039] Figure 4 It is a partially cutaway perspective schematic diagram of the transmission assembly component in the present invention.

[0040] Figure 5 For the present invention Figure 4 Enlarged three-dimensional schematic diagram of the structure at point B in the middle.

[0041] Figure 6 For the present invention Figure 4 Enlarged three-dimensional schematic diagram of the structure at point C in the middle.

[0042] Figure 7 It is a partial three-dimensional schematic diagram of the pressed block in the present invention.

[0043] Figure 8 For the present invention Figure 7 Enlarged three-dimensional schematic diagram of the structure at point D in the middle.

[0044] Fig. 9 It is a partially cutaway perspective schematic diagram of the air compression assembly of the present invention.

[0045] Fig.10 For the present invention Fig. 9 Enlarged three-dimensional schematic diagram of the structure at E in the middle.

[0046] 11. Workbench; 12. Machine; 13. Belt conveyor; 131. Angle plate; 14. Electric control console; 15. Carrying platform; 16. Assembly unit; 161. Pressing block.

[0047] 2. Transmission assembly components; 21. Base; 22. Connecting shell; 23. Rotating shaft; 24. Transmission belt; 25. Rotating groove; 26. Rotating ball connecting rod; 27. Lug; 28. Gear; 29. ​​Motor.

[0048] 3. Air compression assembly; 31. Compression chamber; 32. Compression spring; 33. Limiting shell; 34. Assembly block; 35. Buffer sleeve. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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.

[0050] It should be noted that the belt conveyor 13, the assembly unit 16, and electrical appliances such as the pushing module and the rotating module can all adopt relevant products available on the market. The structure and working principle of these products belong to the existing technology and will not be described in detail later.

[0051] Embodiment 1: Figures 1 to 5 As shown, a semi-automatic short-circuit ring pressing device for a motor includes a workbench 11, a belt conveyor 13 is installed on the top of the workbench 11, a corner plate 131 is fixedly connected to the top of the belt conveyor 13, and a transmission assembly component 2 for improving the placement accuracy of the short-circuit ring is arranged above the belt conveyor 13. The transmission assembly component 2 includes a plurality of transmission belts 24 for placing the short-circuit ring through the thrust transmitted by the self-transmission.

[0052] like Figures 3 to 6As shown, the transmission assembly component 2 also includes a base 21, which is fixedly connected to the top of the angle plate 131, and two connecting shells 22 are fixedly connected to the top of the base 21, and each connecting shell 22 is rotatably connected to a plurality of rotating shafts 23 inside. Every two transmission belts 24 are arranged in a group in upper and lower positions, and each group of transmission belts 24 is transmission-connected to the outer surface of the rotating shaft 23. The inner wall of the connecting shell 22 is symmetrically provided with a rotating groove 25, and the rotating groove 25 is divided into two parts, and the bending part of the connecting shell 22 is set as a dividing line. The inside of the rotating groove 25 is linearly and equidistantly arranged and rotatably connected to a plurality of rotating ball connecting rods 26, and the outer surface of the rotating ball connecting rod 26 is linearly and equidistantly arranged and fixedly connected to a plurality of convex pieces 27, and the side of the convex piece 27 away from the center of the rotating ball connecting rod 26 is chamfered, and the convex piece 27 is made of elastic material, specifically a silicone material, and the rotating shaft 23 located at the bending part of the connecting shell 22 penetrates its surface The workbench 11 has a surface, and gears 28 are fixedly connected on both sides thereof, the gears 28 are meshed with each other, and couplings are installed between the gears 28 that are close to each other, which are specifically implemented as parallel eccentric couplings. A motor 29 is installed on the outer surface of any gear 28, and the bottom of the motor 29 is fixedly connected to the outer surface of the connecting shell 22. The outer wall of the workbench 11 is fixedly connected to the machine table 12, and an electric control table 14 is installed on the upper surface of the machine table 12. A bearing platform 15 is installed on the top of the machine table 12, and an assembly unit 16 is installed on the top of the bearing platform 15. The assembly unit 16 is composed of several cylinders, and a pressing block 161 is installed at the bottom of the output shaft of the cylinder. The assembly unit 16 and the belt conveyor 13 are both electrically controlled and started by the electric control table 14. A rotating module is installed below the bearing platform 15, and a pushing module is installed on the outside of the bearing platform 15. The rotating module and the pushing module are both electrically controlled to start and stop by the electric control table 14.

[0053] It should be noted that two photoelectric modules are symmetrically installed at the top edge of the belt conveyor 13 , the photoelectric modules are electrically connected to the electric control console 14 , the photoelectric modules are specifically implemented as grating sensors, and the motor 29 is electrically controlled to start and stop by the electric control console 14 .

[0054] Specifically, after the operator starts the belt conveyor 13 and the motor 29 with the help of the control panel 14, the assembly of the stator core and the short-circuit ring begins. First, the operator places multiple stator cores on the side of the belt conveyor 13 close to the control panel 14. The belt conveyor 13 then starts the transmission function to transmit the stator core in the direction close to the supporting platform 15. During the transmission process, the angle plate 131 will contact the stator core and make it move along the edge of the belt conveyor 13. At the same time, the photoelectric module installed at the top edge of the belt conveyor 13 will detect the movement of the stator core and transmit the detected electrical signal to the control panel 14 in real time. When the control panel 14 receives this signal, it will issue a command to the belt conveyor 13 to temporarily stop the transmission action of the belt conveyor 13. At this time, the stator core is just below the connecting shell 22, ready for the subsequent placement of the short-circuit ring.

[0055] Then the operator places the side of the short-circuit ring with the opening facing away from him / her into the connecting shell 22. Since the motor 29 has been started, its output shaft starts to rotate, driving the gear 28 connected to it to rotate. Since the gears 28 are meshed with each other and the gears 28 between the two connecting shells 22 are connected by a parallel eccentric coupling, the gears 28 inside the two connecting shells 22 will be synchronized, and the rotation of the gears 28 will drive the rotating shafts 23 on their respective surfaces to rotate. Since the transmission belt 24 is transmission-connected to the outer surface of the rotating shaft 23, the rotation of the rotating shaft 23 will prompt the transmission belt 24 to start transmission. Due to the meshing characteristics of the gears 28, the rotating shafts 23 inside the two connecting shells 22 turn in opposite directions, which in turn causes the two transmission belts 24 inside one connecting shell 22 to drive in opposite directions. However, the two transmission belts 24 in opposite directions will eventually combine into a common forward direction. In this direction, the transmission of the transmission belt 24 starts to drive the short-circuit ring toward the bottom of the connecting shell 22.

[0056] During the movement of the short-circuit ring, the rotating ball connecting rod 26 and the protruding piece 27 inside the rotating groove 25 will rotate due to the movement of the short-circuit ring. Since there are several tiny gaps on the surface of the short-circuit ring, and the protruding piece 27 is made of elastic material, and the side away from the center of the rotating ball connecting rod 26 is chamfered, the protruding piece 27 can be stuck in these tiny gaps. Therefore, the friction between the protruding piece 27 and the short-circuit ring improves the stability of the short-circuit ring during transmission, ensuring that the short-circuit ring can accurately move toward the target position.

[0057] As the conveyor belt 24 continues to drive, the short-circuit ring is driven to move to the top of the stator core. At this time, the bottom of the short-circuit ring is in contact with the top of the stator core. Since the top of the short-circuit ring is still located inside the connecting shell 22 at this time, under the combined force of the conveyor belt 24 in the common direction, the conveyor belt 24 will continue to push the short-circuit ring down and accurately push it into the groove inside the short-circuit ring, thereby successfully completing the assembly of the short-circuit ring.

[0058] When the stator core and short-circuit ring near the grating sensor are assembled, the grating sensor sends an electrical signal to the control console 14 again. After receiving the signal, the control console 14 will start the belt conveyor 13 again to continue to convey the stator core, and the above-mentioned assembly steps are repeated continuously.

[0059] When the assembled stator core moves to the side of the belt conveyor 13 closest to the supporting platform 15 under the transmission of the belt conveyor 13, the pushing module pushes the short-circuit ring to the supporting platform 15, and the assembly unit 16 presses the stator core to make the short-circuit ring fit tightly to the stator core. In this process, the assembly unit 16 and the belt conveyor 13 are both electrically controlled and started by the electric control console 14, and the electric control console 14 performs corresponding operations based on the data monitored by the photoelectric module, thereby ensuring the precise coordination of each action.

[0060] The pressed stator core will be pushed out of the bottom of the carrier platform 15 by the pushing module, and the operator can collect it at this time, thereby completing the assembly and collection process of the entire stator core and the short-circuit ring.

[0061] Embodiment 2: Figure 7 and Fig.10 As shown, on the basis of the first embodiment, an air compression assembly 3 for improving the uniformity of the short-circuit ring pressing is arranged below the assembly unit 16. The air compression assembly 3 includes a plurality of compression chambers 31 that provide different pressing forces by compressing the internal space to a certain extent. The compression chambers 31 are all slidably connected with assembly blocks 34.

[0062] like Fig. 9 and Fig.10 As shown, every two compression chambers 31 are arranged as a group, and each group of compression chambers 31 is obliquely symmetrically opened at the bottom of the pressing block 161, and a compression spring 32 is fixedly connected between the compression chamber 31 and the assembly block 34. A limiting shell 33 is fixedly connected inside each compression chamber 31 and concentrically with the compression spring 32, and a buffer sleeve 35 is fixedly connected to the inner wall of each compression chamber 31 and between the assembly block 34. The interior of the compression chamber 31 is filled with air, and a plurality of strip-shaped protrusions are arranged on the surface of the buffer sleeve 35. The buffer sleeve 35 and the strip-shaped protrusions on its surface are both made of elastic material, specifically silicone material.

[0063] It should be noted that the bottom of the pressing block 161 is rectangular and equidistantly arranged with a number of slide grooves, each of which is slidably connected with a slide column, and the bottom of the slide column is fixedly connected with a hollow slide plate, the rotating module includes a dividing motor, a dividing disc and a number of positioning seats, the dividing motor is installed inside the workbench 11, the dividing disc is programmed to control its rotation angle of ninety degrees each time, the dividing disc is installed on the top of the dividing motor output shaft, the positioning seats are arranged in a circular and equidistant manner and installed on the top of the dividing disc, the pushing module includes a number of cylinder twos and pushing protrusions, the number of cylinder twos are centered on the center of the bearing platform 15, and are arranged in a circular and equidistant manner and fixedly connected to the top of the machine platform 12, a support seat is fixedly connected between the bottom of the cylinder two closest to the belt conveyor 13 and the workbench 11, and a connecting column is installed on the top of the cylinder two farthest from the electric control console 14, and the connecting column is located between the bottom of the bearing platform 15 and the cylinder two.

[0064] Specifically, in Embodiment 1, after the pushing protrusion on the surface of cylinder 2 pushes the stator core into the positioning seat on the surface of the dividing disk, cylinder 1 starts and drives the pressing block 161 to descend. During this process, the assembly block 34 will first contact the short-circuit ring on the surface of the stator core. Due to the inevitable precision errors of the short-circuit ring in the manufacturing process, and the influence of factors such as different batches of raw materials and slight differences in production processes, there will be slight differences in its quality and volume.

[0065] For short-circuit rings with larger mass and volume, greater pressure is required to achieve effective compression. This is because larger mass and volume mean that the molecular structure inside is tighter, and a greater external force is required to change its shape so that it fits the stator core better. When the assembly block 34 contacts the short-circuit ring with larger mass and volume, the assembly block 34 will elastically compress the compression spring 32. At this time, the air in the enclosed space formed by the compression chamber 31, the buffer sleeve 35 and the assembly block 34 is compressed. According to the ideal gas state equation, when the temperature and the amount of substance remain unchanged, the reduction in volume will lead to an increase in pressure, thereby generating a greater pressure on the bottom to meet the compression requirements of the short-circuit rings with larger mass and volume.

[0066] As for the short-circuit ring with smaller mass and volume, its internal molecular structure is relatively loose, and it does not require excessive external force to change its shape. When the assembly block 34 contacts it, the contact force is absorbed by the compression spring 32, causing the compression spring 32 to shrink slightly, so that the overall pressure applied to the short-circuit ring is not large. Since the short-circuit ring is mostly made of copper, copper has a certain ductility. Under the uniform pressure of the assembly unit 16, the short-circuit ring on the stator core can be specifically pressed by the assembly block 34.

[0067] At the same time, the limiting shell 33 plays a limiting role in the pressing process. It can prevent the assembly block 34 from over-compressing the air inside the compression chamber 31, thereby avoiding damage to the entire device or uneven pressure due to excessive pressure. At the same time, the buffer sleeve 35 plays a buffering and damping role. When the air is compressed, the several strip-shaped protrusions on the surface of the buffer sleeve 35 and the characteristics of its own elastic material can make the pressure change more gradual, avoid sudden increase in pressure or reduce the adverse effects on the short-circuit ring, so that the pressure can act on the short-circuit ring more evenly and stably.

[0068] As the pressing process proceeds, since the indexing motor is programmed to rotate ninety degrees each time, the stator core inside the positioning seat will be continuously pressed by cylinder 1 and the pressing block 161 and assembly block 34 at its bottom as the indexing disc rotates. This multiple pressing method can apply uniform pressure to the short-circuit ring on the stator core from multiple angles, thereby ensuring the accuracy of pressing.

[0069] Finally, after multiple pressings, the stator core will be pushed out of the bottom of the carrier platform 15 by the second cylinder located below the carrier platform 15, thereby completing the assembly process of the stator core and the short-circuit ring.

[0070] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0071] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A semi-automatic short-circuit ring pressing device for a motor, comprising a workbench (11), a belt conveyor (13) being installed on the top of the workbench (11), a gusset (131) being fixedly connected to the top of the belt conveyor (13), characterized in that: A transmission assembly component (2) for improving the placement accuracy of the short-circuit ring is arranged above the belt conveyor (13), and the transmission assembly component (2) comprises a plurality of transmission belts (24) for placing the short-circuit ring through the thrust transmitted by the belts themselves.

2. The semi-automatic short-circuit ring pressing device for a motor according to claim 1 is characterized in that: The transmission assembly component (2) further comprises a base (21), wherein the base (21) is fixedly connected to the top of the angle plate (131), and two connection shells (22) are fixedly connected to the top of the base (21), and each connection shell (22) is rotatably connected to a plurality of rotating shafts (23) inside, and each two transmission belts (24) are arranged in an upper and lower position as a group, and each group of transmission belts (24) is drivingly connected to the outer surface of the rotating shaft (23).

3. The semi-automatic short-circuit ring pressing device for a motor according to claim 2, characterized in that: The inner wall of the connecting shell (22) is symmetrically provided with rotation grooves (25), the rotation grooves (25) are divided into two parts, with the bending part of the connecting shell (22) being set as a dividing line, the interior of the rotation grooves (25) is rotatably connected with a plurality of rotating ball connecting rods (26) arranged linearly and equidistantly, the outer surface of the rotating ball connecting rod (26) is fixedly connected with a plurality of convex pieces (27) arranged linearly and equidistantly, the side of the convex piece (27) away from the center of the rotating ball connecting rod (26) is chamfered, and the convex piece (27) is made of elastic material.

4. The semi-automatic short-circuit ring pressing device for a motor according to claim 3 is characterized in that: The rotating shafts (23) located at the bends of the connecting shell (22) all penetrate the surface thereof, and gears (28) are fixedly connected to both sides thereof. The gears (28) are meshed with each other, and couplings are installed between the gears (28) that are close to each other. A motor (29) is installed on the outer surface of any one of the gears (28), and the bottom of the motor (29) is fixedly connected to the outer surface of the connecting shell (22).

5. The semi-automatic short-circuit ring pressing device for a motor according to claim 1, characterized in that: The outer wall of the workbench (11) is fixedly connected to a machine table (12); an electric control console (14) is installed on the upper surface of the machine table (12); a supporting platform (15) is installed on the top of the machine table (12); an assembly unit (16) is installed on the top of the supporting platform (15); the assembly unit (16) is composed of a plurality of cylinders; a pressing block (161) is installed at the bottom of the output shaft of each cylinder; and the assembly unit (16) and the belt conveyor (13) are both electrically controlled to start and stop by the electric control console (14).

6. The semi-automatic short-circuit ring pressing device for a motor according to claim 5, characterized in that: A rotating module is installed below the carrying platform (15), and a pushing module is installed outside the carrying platform (15). Both the rotating module and the pushing module are started and closed by electrical control of the electric control console (14).

7. The semi-automatic short-circuit ring pressing device for a motor according to claim 5, characterized in that: An air compression assembly (3) for improving the uniformity of short-circuit ring compression is provided below the assembly unit (16). The air compression assembly (3) comprises a plurality of compression chambers (31) that provide different compression forces by means of the degree of compression of the internal space. The compression chambers (31) are all slidably connected with assembly blocks (34) inside.

8. The semi-automatic short-circuit ring pressing device for a motor according to claim 7, characterized in that: Every two compression bins (31) are arranged as a group, and each group of compression bins (31) is obliquely symmetrically opened at the bottom of the pressing block (161), a compression spring (32) is fixedly connected between the compression bins (31) and the assembly block (34), a limiting shell (33) is fixedly connected concentrically with the compression spring (32) inside each compression bin (31), and a buffer sleeve (35) is fixedly connected between the inner wall of each compression bin (31) and the assembly block (34).

9. The semi-automatic short-circuit ring pressing device for a motor according to claim 8, characterized in that: The interior of the compression chamber (31) is filled with air, a plurality of strip-shaped protrusions are provided on the surface of the buffer sleeve (35), and the buffer sleeve (35) and the strip-shaped protrusions on the surface thereof are both made of elastic material.

10. The semi-automatic short-circuit ring pressing device for a motor according to claim 1, characterized in that: Two photoelectric modules are symmetrically installed at the top edge of the belt conveyor (13), and the photoelectric modules are electrically connected to the electric control console (14).

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