Mechanical arm device

Abstract

The embodiment of the invention provides a mechanical arm device. The mechanical arm device includes an installation base, a drive mechanism a support and two clamping mechanisms; the drive mechanism is arranged on the installation base; the support is connected to the drive mechanism; the two clamping mechanisms are symmetrically arranged two sides of the support; the drive mechanism includes a motor, an over-current protector and an output shaft, wherein the over-current protector is electrically connected to the motor and is used for turning off power of the motor when the motor is overloaded, a surface of the output shaft is provided with threads; a threaded hole is formed in the center of the support, the output shaft passes through the threaded hole, and the threaded hole can be in fit connection with the threads of the output shaft; the motor is connected to the output shaft and is used for driving the output shaft to rotate around the axis of the output shaft to drive the support to do straight reciprocating motion and then drive the two clamping mechanisms to rotate relative to the installation base to hold articles. According to the mechanical arm device, the motor is turned off when articles are clamped, and then burnout due to locked rotor can be avoided; the clamping force can be kept during power off, and the clamped articles cannot fall down; and the mechanical arm device is simple in structure and is easy to control.

Description

technical field [0001] The invention relates to a mechanical device, in particular to a mechanical arm device. Background technique [0002] At present, on the factory assembly line, there are many repetitive labors that need to grab items. The cost of using human labor is too high and the long-term repetitive labor makes the probability of staff mistakes also increase; with the continuous development of science and technology, mechanization, The concept of automation continues to penetrate into people's production and life. As a common device, manipulators have completed a lot of repetitive work on the factory assembly line. [0003] However, the mechanical structure of the existing manipulator is mainly realized by the steering gear to grab the object, and the steering gear is burned out because of the excessive blocking current when grasping the object. Adding a clutch device to the steering gear will reduce the chance of the steering gear being burnt out due to stalling...

AI Technical Summary

Problems solved by technology

[0003] However, the mechanical structure of the existing manipulator is mainly realized by the steering gear to grab the object, and the steering gear will burn out due to the excessive blocking current when grasping the object.

Adding a clutch device to the steering gear will reduce the chance of the steering gear being burnt out due to stalling, but it cannot exert the maximum power of the steering gear. At the same time, the motor is always energized to output torque when grasping an object, which greatly affects the life of the steering gear and the grip Persistence of function, but also a waste of electric energy

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