The Difference Between Industrial Robots And Mechanical Arms

Sep 18, 2021

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The difference between industrial robots and mechanical arms


At present, there are many mechanical arms on the market, many partners can not distinguish between mechanical arms and industrial robots is not the same concept, today, BORUNTE robot manufacturer xiaobian and everyone to explain.


A mechanical arm is a mechanical device, which can be automatic or manually controlled. Industrial robot is a kind of automation equipment, mechanical arm is a kind of industrial robot, industrial robot also has other forms. So although they have different meanings, there is some overlap.


So to put it simply, there are many forms of industrial robots, and the robot arm is just one of them.


First, the mechanical arm


A robotic arm is "a fixed or mobile machine, usually composed of a series of interconnected or relative sliding parts, used to grab or move objects, capable of automatic control, repeatable programming, and multiple degrees of freedom (axis). It works by linear motion along the X, Y, and Z axes to reach the target."


Second, the industrial robot


According to ISO 8373 definition, industrial robot is automatically perform the work of the machine device, is to rely on their own power and control ability to achieve a variety of functions of a machine. It can be directed by a human or programmed to operate, and modern industrial robots can act according to principles laid down by artificial intelligence technology.


Third, the difference between robot and mechanical arm


Robot arm is the most widely used mechanical device in the field of robotics, widely used in industry, medical and even military, space fields. Mechanical arms can be divided into four axes, five axes, six axes and multiple axes, 3D/2D robots, independent mechanical arms, hydraulic mechanical arms, etc. Although there are many kinds of them, one thing they have in common is that they can receive instructions and accurately locate points in three-dimensional (or two-dimensional) space for operation.


Unlike mechanical arms, robots can not only receive instructions from human beings, but also perform operations according to pre-programmed human activities and act according to principles specified by artificial intelligence. In the future, robots will assist or replace more human work, especially some repetitive work, dangerous work and so on.

European and American countries and Japan have different definitions of robots:


European and American countries think that robots should be controlled by computers, through programming to make robots become multi-functional automatic machinery; In Japan, robots are considered to be advanced automatic machines, so robotic arms are included in the definition of robots. European and American countries believe that mechanical arms with 6 or more axes can be called robots, while those with 5 or less axes can only be called mechanical arms. Japan defines a 3-axis manipulator as a robot.


Now the international concept of the robot has basically tended to be the same, all think that the robot is by its own power and control ability to achieve a variety of functions of an automatic machinery.


The difference between robot and manipulator in application range:


The robot arm is widely used in the industry, and its main technology is drive and control. The robot arm is usually series structure.


Robots are mainly divided into series structure and parallel structure:


Parallel robot (PM) is mainly used for occasions requiring high stiffness, high precision, high speed and no large space. It is specifically used in sorting, handling, simulation movement, parallel machine tool, metal cutting, robot joint, spacecraft interface, etc. Series robot and parallel robot form complementary relationship in application, series robot has large working space, can avoid the coupling effect between driving shafts. However, each axis of the mechanism must be controlled independently, and encoders and sensors are needed to improve the precision of motion.