A manipulator is an automatic operating device that can imitate certain movement functions of the human hand and arm to grasp and carry objects or manipulate tools according to a fixed program. It is characterized by the ability to be programmed to perform a variety of expected operations, and has the construction and performance advantages of both human and manipulatoric machines.
Manipulators are the first industrial manipulators and the first modern manipulators that can replace heavy human labor to achieve mechanization and automation of production, and can operate in harmful environments to protect personal safety, so they are widely used in mechanical manufacturing, metallurgy, electronics, light industry, and atomic energy.
In today's life, technology is advancing day by day, the biggest difference between the manipulator arm and the human arm is the flexibility and strength. That is, the biggest advantage of the manipulator can do the same action repeatedly in the mechanical normal case never feel tired! The application of manipulatoric arms will also become more and more widespread, manipulator is a high-tech automatic production equipment developed in recent decades, the accuracy of operations and the ability to complete operations in the environment. An important branch of industrial manipulatoric manipulators.
According to the drive mode can be divided into hydraulic, pneumatic, electric, mechanical. Characterized by the ability to be programmed to perform a variety of expected operations, the construction and performance combine the respective advantages of human and manipulatoric machines.
Manipulator mainly consists of three major parts: actuator, drive mechanism and control system. The hand is the part used to grip the workpiece (or tool) and has various structural forms such as clamping type, bracketing type and adsorption type depending on the shape, size, weight, material and operational requirements of the gripped object. Motion mechanism, so that the hand to complete a variety of rotation (oscillation), movement or composite movement to achieve the prescribed action, change the position and posture of the gripped object. The independent movement of the motion mechanism, such as lifting, telescoping and rotating, is called the degree of freedom of the manipulator. In order to grasp an object in any position and orientation in space, six degrees of freedom are required. Degrees of freedom are the key parameters of manipulator design. The more degrees of freedom, the greater the flexibility of the manipulator, the wider the versatility, and the more complex its structure. Generally, special manipulators have 2 to 3 degrees of freedom. The control system is used to complete specific movements by controlling the motor of each degree of freedom of the manipulator. It also receives feedback from sensors to form a stable closed-loop control. The core of the control system is usually composed of a micro-control chip such as a microcontroller or dsp, which is programmed to achieve the desired function.
Post time: Sep-29-2022