Other Types of Robots (Industrial Robots)

industrial robotThere are numerous ways to define kinds of robots. The possible divisions widely varies. The main reason for those differences is different scholars have very different views on which issues should be considered under term "robotics".

For instance - most scholars which teach robotics normally focus mainly on the industrial robots, and completely neglect service robots. Therefore when considering the types of robots, scholars usually talk about kinds of industrial robots. However, there’s a strong reason for that - the bigger part of robotics engineers mostly wil need to deal with industrial robotics.

Nevertheless, the industrial robots are not alone. Therefore when dividing robots in types, the division should be sufficiently broad to include everything which can be perceived as a robot. There are 2 possible ways for this to be done. Firstly, you could divide the robots into types according to their application and secondly, according to the way they do or don’t move. There are other viable ways of defining the various robot types but those two are completely relevant. Also, these classifications should be used together together. That way two questions concerning a robot will be already answered - "What does it do?" and "How does it do its job?"

Types of robots by application
Nowadays, robots accomplish a lot of difficult tasks in many different fields. And the number of jobs given to robots is steadily growing. That is why a superb way of dividing robots in types is the division by the application.

There are:
*Industrial robots
*Medical robots
*Domestic or household robots
*Service robots
*Entertainment and toy robots
*Military robots
*Exploration robots

The future robots which you see in the sci-fi movies might not be here yet, but industrial robots have important roles in the manufacturing factories, the military and medical applications.

The Cartesian robot
The Cartesian robot is a part of the industrial robots, so named as it uses the Cartesian coordinator and operates three prismatic joints of his arm. It is also called a rectilinear or gantry robot. Cartesian robots posses three linear joints which use the Cartesian coordinate system with an X, Y, and Z. They also might have a wrist to allow for some rotational movement. These three prismatic joints allow for a linear motion along its axis. The Cartesian robot is used in pick-and-place applications, machine tools, arc welding and applying sealant.

A cylindrical robot.

A cylindrical robot looks just like how it sounds - a robot having axes that make a system of cylindrical coordinates. This robot has one rotary joint at least, at the base and no less than one prismatic joint for connecting the links. This rotary joint utilizes a rotational motion along his joint axis, and the prismatic joint goes in a linear path. Cylindrical robots function in a cylindrical-shaped work envelope. This cylindrical robot belongs to the industrial robot family, and is good for assembly work, machine tools, die casting and spot welding.

The spherical or polar robot.
The spherical robot is able to make a polar coordinate system, within a radius of the machine, up or down. In the configuration, its arm is connected to a base using a twisting joint and a combo of one linear joint and two rotary joints. The axes make a polar coordinate system, which creates a spherical-shaped work envelope. It is another industrial robot, which is used in many similar applications as the cylindrical one.

Articulated robot
This robot design has rotary joints and ranges from the simple two joint machines to 10 and more joints. Its arm is connected to its base using a twisting joint. Links in its arm are made by rotary joints. Every joint is termed an “axis“ and gives an additional level of freedom, a. k. a. range of motion. Commonly, industrial robots have six ot four axes. The articulated robot could perform a different variety of motions from the spherical and cylindrical robots, and although it is used in similar situations, it is suitable to operations which require different kinds of movements.

Parallel robot
A parallel robot has two arms with concurrent joints; either rotary or prismatic. The parallel robot is used in applications which require two arms which can move simultaneously, for instance handling cockpits during flight simulations.

Commonly utilized in assembly applications, the selectively compliant arm designed for robotic assembly is usually cylindrical in shape. It has two parallel joints which provide compliance in a selected plane. It is used in the same industrial applications as other industrial robots.

Robots in military applications
Military robots look like the future robots you wouldd see in movies like „The Terminator" series, with equipment which can go in battle without any human involvement. Robots for military applications are in the top-secret phase still, and little is disclose about the current levels of technological development.

Robots in medical applications
Robots are useful in the life-saving medical applications. The robotic surgery is a new area in the medical world, and it is an area in which robots are being utilized effectively. Robots are capable of doing everything from making small and more precise incisions to letting doctors to operate from a distance. Robotic surgery continues to go forward as technology improves, and it’s becoming the cornerstone of the surgical world.

Robots in household applications
Robots are also starting to become ubiquitous in household applications. iRobot has the Roomba vacuuming robot, together with a whole series of robots made to pick up dirt, cleaning and mopping floors. Those kinds of domestic robots are immense time-savers, and they turn it easy for others to focus on the more productive tasks outside simply cleaning their house.

These spider-like robots are made from jointed parallelograms linked to a single base. The parallelograms move one EOAT in the dome-shaped work space. Heavily utilized in the pharmaceutical, food and electronic industries, the robot configuration is able to carry out delicate and precise movement.