A servo motor with a power supply unit

Abstract

This utility model discloses a servo motor with a power supply device, including a motor housing, a brake mechanism, and an encoder cover. The encoder cover has an encoder output line connected to an encoder disk disposed within the inner cavity of the encoder cover. The encoder disk is fixedly connected to a fixing base, which is connected to the brake mechanism. A power supply device is disposed within the encoder cover, and the encoder disk is connected to the power supply device within the encoder cover. This utility model, by mounting a power supply battery device within the encoder cover and welding it to the encoder disk, and by using a rechargeable battery, enables the encoder to retain the position information of each axis during power failure and avoids data loss due to wear and tear during use, as is common in existing technologies.

Description

Technical Field

[0001] This utility model belongs to the field of servo motor technology, specifically a servo motor with a power supply device. Background Technology

[0002] A conventional servo motor structure consists of components such as a shaft, oil seal, front cover, rear cover, encoder, and encoder end cover. During use, in order to provide the encoder with memory storage function, an additional battery box needs to be connected to the outside of the servo motor to supply power, so that the encoder can effectively store the current position when the servo motor is powered off. Using this method, there are problems such as the failure to supply power to the encoder due to improper installation and use, and the increased cost due to frequent battery replacements. At the same time, it is difficult to install in some particularly narrow installation spaces, such as the small space inside a lightweight robot arm, where the battery box is easily damaged and cannot be fixed when it is installed tightly squeezed with the external cables. Utility Model Content

[0003] This invention provides a servo motor with an integrated power supply device, eliminating the need for an external battery box and battery replacement.

[0004] This utility model provides a servo motor with a power supply device, comprising: a motor housing, a power mechanism, a brake mechanism, and an encoder cover inside the motor housing; the power mechanism has a power line outlet line, the brake mechanism has a brake line outlet line, the encoder cover has an encoder outlet line, the encoder outlet line is connected to an encoder disk disposed inside the encoder cover, the encoder disk is fixedly connected to a fixed base, the fixed base is connected to the brake mechanism, and a power supply device is disposed inside the encoder cover, the encoder disk being connected to the power supply device inside the encoder cover.

[0005] Preferably, the power supply device is mounted on the encoder disk and connected by welding.

[0006] Preferably, the power supply device is connected to the encoder disk via a cable.

[0007] Preferably, the battery in the power supply device is a rechargeable battery.

[0008] Compared to existing technologies, this novel invention integrates the power supply battery into the encoder cover and welds it to the encoder disk, utilizing a rechargeable battery. This allows the encoder to retain the position information of each axis during power outages and avoids data loss due to wear and tear, reducing battery replacement costs and manual wiring costs, while also improving overall aesthetics. Particularly beneficial is its ability to address the issue of encoder position information loss in industrial robots, which necessitates origin restoration or recalibration of each axis. Attached Figure Description

[0009] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings:

[0010] Figure 1 This utility model provides a schematic diagram of the external structure of a servo motor with a power supply device;

[0011] Figure 2 This utility model provides a schematic diagram of a servo motor encoder with a power supply device;

[0012] Figure 3 Another schematic diagram of a servo motor encoder with a power supply device provided by this utility model;

[0013] Figure 4 This utility model provides an exploded view of the internal structure of a servo motor encoder cover with a power supply device.

[0014] The markings in the diagram are: 1. Power mechanism; 2. Power line outlet line; 3. Brake line outlet line; 4. Brake mechanism; 5. Encoder cover; 6. Encoder outlet; 601. Fixed base; 602. Encoder disc; 603. Encoder line; 604. Power supply device. Detailed Implementation

[0015] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0016] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0017] It should be noted that all directional indications (such as up-down-left-right-forward-backward...) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly. The connection can be a direct connection or an indirect connection.

[0018] like Figures 1 to 4 As shown, this utility model provides a servo motor with a power supply device, including: a motor housing, a power mechanism 1, a brake mechanism 4, and an encoder cover 5 inside the motor housing. The power mechanism 1 has a power line outlet line 2 to provide power to drive the motor and is connected to a drive controller that drives the servo motor. The brake mechanism 4 has a brake line outlet line 3 connected to the drive controller. The control system controls the current of the motor to generate a certain resistance, thereby achieving a brake effect. The encoder cover 5 has an encoder outlet line 6 connected to the drive controller to transmit encoder signals reflecting information such as the position, speed, and direction of the motor. One end of the encoder outlet line 6 is connected to an encoder disk 602 inside the encoder cover 5 through a connector terminal, and the other end is connected to the outside of the encoder cover and has a connector terminal connected to the drive controller. The encoder disk 602 is fixedly connected to a fixed base 601, and the central axis of the encoder disk is coaxial with the central axis of the servo motor. The fixed base 601 is connected to the brake mechanism 4 and is coaxial with the central axis of the servo motor. The encoder disk 602 is connected to a power supply device 604 inside the encoder cover 5. In the first embodiment of this utility model, the power supply device is integrated into the encoder disk and placed inside the encoder cover cavity, which shortens the connection cable, eliminates the need for external battery box wiring process and avoids damage caused by improper installation and use that could affect the normal operation of the equipment, simplifies the process, reduces costs, and improves reliability.

[0019] like Figures 1 to 4 As shown, in the first embodiment, the power supply device 4 is mounted on the encoder disk 602 and connected by welding, simplifying the connection process. Meanwhile, in another preferred embodiment, the power supply device 4 is connected to the encoder disk 602 via a cable and placed between the encoder cover cavity and the encoder disk, ensuring that the power supply device is not exposed to the outside of the servo motor and avoiding damage due to improper installation and connection.

[0020] like Figures 1 to 4As shown, in the preferred embodiment, the battery in the power supply device 4 is a rechargeable battery. Utilizing the performance of the rechargeable battery, it charges while the servo motor is operating, maintaining sufficient stored power. Simultaneously, when the servo motor experiences an unexpected power outage, the rechargeable battery has sufficient reserve power to maintain the encoder's memory function, effectively memorizing the current position information of the device at the time of the power outage. This eliminates the need to return to the origin to resume operation or recalibrate the origin positions of each axis, saving time and improving work efficiency. Furthermore, the rechargeable battery eliminates the need for frequent replacements, making it highly economical. In particular, lithium-ion batteries, due to their high energy density and long lifespan, have become the preferred choice for electronic devices.

[0021] This novel invention integrates a power supply battery device, which is welded to the encoder disk within the encoder cover and uses a rechargeable battery. This allows the encoder to retain the position information of each axis even during power outages, and avoids data loss due to wear and tear in existing technologies. It also reduces battery replacement costs and manual installation and wiring costs, while improving the overall aesthetics. Furthermore, placing the external power supply battery inside the servo motor eliminates space limitations, expanding the application scenarios for the servo motor.

[0022] The parts not covered in this technical solution can be implemented using existing technologies.

[0023] The foregoing has shown and described the basic principles, main features, and characteristics of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model includes the appended claims and their equivalents.

Claims

1. A servo motor with a power supply device, characterized by: The application relates to a motor shell, a brake mechanism and an encoder cover, wherein the encoder cover is provided with an encoder outlet line connected with an encoder disc arranged in the inner cavity of the encoder cover; the encoder disc is fixedly connected with a fixed base; the fixed base is connected with the brake mechanism; a power supply device is arranged in the inner cavity of the encoder cover; and the encoder disc is connected with the power supply device in the inner cavity of the encoder cover.

2. The servo motor with power supply device according to claim 1, characterized in that: The power supply device is arranged on the encoder disc and connected through welding.

3. The servo motor with power supply device according to claim 1, characterized in that: The power supply device is connected with the encoder disc through a cable.

4. The servo motor with power supply device according to claim 1, characterized in that: The battery in the power supply device is a rechargeable battery.

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