PV76L12-10S-27

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PV76L12-10S-27, referred to as the device in this paper, is a fork joint-type electric actuator. It is a kind of joint Electric Manipulator for Angle Transmition that combines stepper motors, harmonic drive reducers and precise positioning servo systems together. It is widely used in industrial robot, medical robot, intelligent welding and non-standard automation equipment fields. The following will explain the application field and working principle of the device.

Application Field

The device is widely used in industrial robot, medical robot and intelligent welding fields. It is an ideal actuator of robotic systems with its low speed, high torque and no-backlash features:

• In the industrial robot field, it can be used to complete arbitrary complex repetitive motions, such as the stacking of objects, the assembly of parts, and the loading and unloading of production lines.
• In the medical robot field, it can be used to replace multiple motors or gearboxes with one device, which can simplify the controls of medical robot systems and reduce their motion trajectory disturbance.
• In the intelligent welding field, it can be used to accurately adjust welding temperature and current to ensure welding accuracy.

In addition, the device can also be used in non-standard automation equipment with its features of simple control, low cost and high speed.

Working Principle

The device relies on the gear transmission principle. The main transmission force consists of a planetary gear pair, a harmonic drive gear pair and a servo motor. The input shaft of the device is driven by the servo motor, so that the meshing of the drivers, the output shaft and the driven gear can occur. The planetary gear is utilized to provide a mechanical advantage by multiplying the torque. The harmonic drive is used to be an interference-fit to reduce the backlash. The servo motor controls the transmisson accurately, and the output shaft rotates to the required position when the servo motor reaches the specified current at input.

The device is a combination of multiple components, and it is more superior than similar components in terms of low speed, high torque and no-backlash, etc. It is an ideal choice for robotic systems in the industrial, medical and intelligent welding fields.

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