A motor rotor surface processing device

Abstract

The utility model discloses a motor rotor surface processing device, including the support, the both sides symmetrical mounting of support have the cylinder, install the connecting block on the piston rod of cylinder, be provided with the threaded rod on the connecting block, the one end rotation of threaded rod is connected with the support shell for supporting rotor shaft, the inside installation of support shell is used for detecting whether the switch module of rotor shaft is placed in place, the bottom of one side of support shell is installed the tubular body, one end of tubular body penetrates connecting block. Through both sides symmetrical support shell to rotor shaft forms stable support, and cooperate the press switch module in support shell, can automatic detection rotor whether places in place. Only when rotor is completely in place and triggers switch module, the device will start the subsequent processing flow, effectively avoid the problem such as rotor deviation, falling off caused by artificial placement deviation, reduce product damage risk, reduce production cost.

Description

Technical Field

[0001] This utility model relates to the field of motor rotor technology, specifically to a motor rotor surface processing device. Background Technology

[0002] Currently, the painting process for motor rotor surfaces in the industry largely relies on traditional roller painting equipment. The basic working principle of this type of equipment is as follows: a worker manually places the motor rotor between two rollers with paint applied to their surfaces. The rotation of the rollers drives the rotor to rotate synchronously, ensuring full contact between the rotor surface and the paint on the rollers, thus completing the coating. However, in actual production applications, this traditional processing method has several significant drawbacks:

[0003] 1. Traditional equipment relies entirely on manual placement of the rotor between the rubber rollers, which is prone to errors. When the rotor is misplaced due to human error, the rotor may shift, wobble, or even fall off due to uneven force caused by the rotation of the rubber rollers. If the rotor falls from the equipment, it will cause impact damage to the rotor body, resulting in the product being scrapped and increasing production costs.

[0004] 2. The duration of the coating process between the rotor and the rubber roller is entirely controlled manually based on experience. Different operators have different judgment standards, and even the same operator may experience timing deviations due to fatigue after prolonged operation. This directly results in inconsistent coating times for different rotors. If the coating time is too short, the coating thickness will be insufficient, resulting in incomplete coverage and ineffective insulation and corrosion protection. If the coating time is too long, the coating will be too thick, wasting paint and potentially causing defects such as sagging and accumulation due to delayed drying, affecting the rotor's assembly accuracy and dynamic balance performance. This quality fluctuation severely restricts product consistency and makes it difficult to meet the stringent stability requirements of high-end motors.

[0005] To address this, a device for machining the surface of an electric motor rotor is proposed. Summary of the Invention

[0006] The purpose of this invention is to provide a motor rotor surface processing device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a motor rotor surface processing device, including a bracket, on both sides of the bracket symmetrically mounted cylinders, a connecting block mounted on the piston rod of the cylinders, a threaded rod threadedly connected to the connecting block, one end of the threaded rod being rotatably connected to a bearing shell for supporting the rotor shaft, a switch module for detecting whether the rotor shaft is in place being installed inside the bearing shell, and a tube body mounted on one bottom side of the bearing shell, one end of the tube body penetrating the connecting block.

[0008] Preferably, two rubber rollers are symmetrically rotatably connected to the upper part of the bracket, a paint tank with an open top is installed in the middle of the bracket, and the lower part of the rubber rollers is located inside the paint tank.

[0009] Preferably, a drive wheel is installed at one end of each of the two rubber rollers. The drive wheel is a pulley, chain wheel, or gear. An output shaft is installed below the bracket and is connected to the drive wheel to drive the drive wheel to run.

[0010] Preferably, a controller for controlling the extension and retraction of the cylinder is installed below the bracket. The controller is electrically connected to the switch module, and a timing module is integrated inside the controller.

[0011] Preferably, the supporting shell is a hollow structure and is connected to the tube body, and the top of the switch module penetrates through the upper surface of the supporting shell.

[0012] Preferably, a knob is fixedly installed at the end of the threaded rod away from the bearing shell, and the outer circumferential surface of the knob is provided with anti-slip texture.

[0013] Compared with existing technologies, the advantages of this invention are: the symmetrical bearing shells on both sides provide stable support for the rotor shaft, and the push-button switch module inside the bearing shell can automatically detect whether the rotor is in place. Only when the rotor is fully in place and the switch module is triggered will the device start the subsequent processing flow, effectively avoiding problems such as rotor offset and detachment caused by manual placement deviations, reducing the risk of product damage, and lowering production costs.

[0014] Meanwhile, with the help of the controller and integrated timing module, the contact time between the rotor and the rubber roller can be precisely controlled. The automatic timing starts from the switch module and immediately controls the cylinder to separate the rotor from the rubber roller after the preset time is reached. This ensures that the painting time of all rotors is uniform, avoids the coating being too thin or too thick, significantly improves the stability of product quality, and meets the stringent surface treatment requirements of high-end motors. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the rubber roller of this utility model;

[0017] Figure 3 This is a schematic diagram of the threaded rod of this utility model;

[0018] Figure 4 This is a cross-sectional structural diagram of the bearing shell of this utility model.

[0019] In the diagram: 1. Bracket; 2. Paint tank; 3. Rubber roller; 4. Drive wheel; 5. Cylinder; 6. Motor rotor body; 7. Threaded rod; 8. Connecting block; 9. Pipe body; 10. Bearing shell; 11. Switch module. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] Please see Figure 1-4 This utility model provides a technical solution: a motor rotor surface processing device, including a bracket 1. Cylinders 5 are symmetrically installed on both sides of the bracket 1. A connecting block 8 is fixedly installed at the end of the piston rod of the cylinder 5. A threaded rod 7 is threadedly connected to the connecting block 8. One end of the threaded rod 7 is rotatably connected to a bearing housing 10 for supporting the rotor shaft via a bearing. The interior of the bearing housing 10 is equipped with a switch module 11 for detecting whether the rotor shaft is in place. The switch module 11 is a push-button switch. When the rotor shaft is correctly placed on the two bearing housings 10 and fully in place, the rotor shaft will press against the top of the switch module 11, triggering the switch action. A tube 9 is fixedly installed at the bottom of one side of the bearing housing 10, and the tube 9 passes through the connecting block 8 in a horizontal direction.

[0022] like Figure 1 and Figure 2 As shown: Two rubber rollers 3 are symmetrically connected to the upper part of the support 1 via a rotating shaft. A motor rotor body 6 is placed between the two rubber rollers 3. A paint tank 2 with an open top is fixedly installed in the middle of the support 1. The lower part of the rubber rollers 3 is located inside the paint tank 2 and can be used to pick up paint from the tank. A drive wheel 4 is fixedly installed at the same end of each of the two rubber rollers 3. The drive wheel 4 can be a pulley, chain wheel, or gear. A motor is installed below the support 1. The motor's output shaft is connected to the drive wheel 4 via a transmission component such as a belt, chain, or gear set, enabling the drive wheel 4 and the rubber rollers 3 to run synchronously. The aforementioned device belongs to the category of existing rotor painting equipment. Its core structure has been presented through the combination of components such as the support 1, rubber rollers 3, paint tank 2, and drive wheel 4. The connection relationships and basic functions of these components have also been briefly explained to clearly demonstrate the overall framework and composition of the device. It should be clarified that the specific painting operation process that the rotor undergoes in this device, including how the rotor contacts the rubber roller 3, the way the paint adheres to the rotor surface, and the parameter control during the painting process, are all existing technologies and will not be further elaborated or described here.

[0023] like Figure 1As shown: A controller is installed below the bracket 1. The main function of the controller is to control the extension and retraction of the cylinder 5. The controller and the switch module 11 are electrically connected via wires. The signal detected by the switch module 11 can be transmitted to the controller, which then controls the cylinder 5 to perform the corresponding action. The controller integrates a timing module. After the switch module 11 is triggered, the timing module starts timing and simultaneously controls the piston rod of the cylinder 5 to retract, so that the surface of the motor rotor body 6 contacts the outer surface of the rubber roller 3 for the painting process. After the preset time is reached, the piston rod of the cylinder 5 is controlled to extend, thereby lifting the motor rotor body 6 and separating it from the rubber roller 3.

[0024] like Figure 4 As shown: the bearing shell 10 has a hollow structure inside, and its internal space is connected to the internal channel of the tube 9. The tube 9 can be used to lead out the wires of the switch module 11, protect and constrain the wires. The top of the switch module 11 extends upward through the upper surface of the bearing shell 10, so as to make contact with the rotor shaft placed on the bearing shell 10 to achieve triggering.

[0025] like Figure 3 As shown: A knob is fixedly installed at the end of the threaded rod 7 away from the bearing shell 10. The outer circumference of the knob is machined with anti-slip textures such as stripes or grids, which can increase the friction between the hand and the knob, making it convenient for the operator to turn the knob to adjust the position of the threaded rod 7.

[0026] Working principle: First, based on the size of the motor rotor shaft, the distance between the two bearing housings 10 is adjusted by rotating the knob at the end of the threaded rod 7, so that the bearing housing 10 fits the length of the rotor shaft. The motor rotor shaft is placed on the two bearing housings 10. When the rotor shaft is fully in place, it will press the top of the switch module 11 inside the bearing housing 10, triggering the switch module 11 to operate.

[0027] The switch module 11 transmits a signal to the controller below the bracket 1. After receiving the signal, the controller activates the integrated timing module and simultaneously controls the piston rods of the cylinders 5 on both sides to retract synchronously. The piston rods drive the connecting block 8, the threaded rod 7, and the bearing shell 10 to move downwards, causing the motor rotor body 6 to descend until its outer surface contacts the two rubber rollers 3 above the bracket 1.

[0028] The motor below the bracket 1 drives the drive wheel 4 at one end of the rubber roller 3 to rotate through the transmission component, causing the two rubber rollers 3 to rotate synchronously. Since the lower part of the rubber roller 3 is located in the paint tank 2, the rotating rubber roller 3 will pick up the paint in the paint tank 2 and evenly apply the paint to the surface of the motor rotor body 6 in contact with it, thus realizing the roller painting process.

[0029] When the timing module reaches the preset processing time, it indicates that the painting work is completed. At this time, the controller controls the piston rod of cylinder 5 to extend, driving the bearing shell 10 and the rotor to rise, so that the rotor body is separated from the rubber roller 3, making it easier for the worker to pick up the motor rotor body 6, thus completing one surface processing work.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A surface processing device for an electric motor rotor, comprising a support (1), characterized in that: Cylinders (5) are symmetrically installed on both sides of the bracket (1). A connecting block (8) is installed on the piston rod of the cylinder (5). A threaded rod (7) is threadedly connected to the connecting block (8). One end of the threaded rod (7) is rotatably connected to a bearing shell (10) for supporting the rotor shaft. A switch module (11) for detecting whether the rotor shaft is in place is installed inside the bearing shell (10). A tube (9) is installed on one bottom side of the bearing shell (10). One end of the tube (9) passes through the connecting block (8).

2. The motor rotor surface processing device according to claim 1, characterized in that: Two rubber rollers (3) are symmetrically rotatably connected above the bracket (1). A paint tank (2) with an open top is installed in the middle of the bracket (1). The bottom of the rubber rollers (3) is located inside the paint tank (2).

3. The motor rotor surface processing device according to claim 2, characterized in that: One end of each of the two rubber rollers (3) is equipped with a drive wheel (4), which is a belt pulley, chain wheel or gear. The bracket (1) is equipped with an output shaft that is connected to the drive wheel (4) for driving the drive wheel (4) to run.

4. The motor rotor surface processing device according to claim 1, characterized in that: A controller for controlling the extension and retraction of the cylinder (5) is installed below the bracket (1). The controller is electrically connected to the switch module (11), and a timing module is integrated inside the controller.

5. The motor rotor surface processing device according to claim 1, characterized in that: The supporting shell (10) is a hollow structure and is connected to the tube body (9). The top of the switch module (11) penetrates the upper surface of the supporting shell (10).

6. The motor rotor surface processing device according to claim 1, characterized in that: A knob is fixedly installed at the end of the threaded rod (7) away from the bearing shell (10), and the outer circumferential surface of the knob is provided with anti-slip texture.

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