The first industrial robot, the Unimate, made its debut in 1962. First used in a General Motors plant, the robotic arm was quickly adopted by other automakers, then entire industries. We cover today what makes up an industrial robot, the different kinds, and - most importantly - what they do that make them indispensable in today's modern world.
What is an Industrial Robot
An industrial robot is a machine used for manufacturing. It is programmed to perform production related tasks automatically. Unlike what's portrayed on television and in the movies, industrial robots don't have a humanoid form. Instead, they look like a mechanical arm or arms that move about in several, programmed directions.
Industrial robots can be broken down into five main parts:
- A controller or "brain" housed within an rugged mini PC.
- Sensors like cameras.
- Robotic manipulators aka the "arm(s)".
- The "hand" at the end of the arm called the End of Arm Tooling (EOAT).
- The drive which is an engine or motor that powers and moves the robot.
Some of the largest users of industrial robots are the aerospace, automotive, electronics, food, and medical industries. Industrial robots can also be found working in:
- Consumer goods
- E-Commerce
- Hardware
- Liquor distribution
- Manufacturing
- Quality control and inspection
- Retail
- Warehousing and distribution
Five Major Types of Industrial Robots
Industrial robots commonly break down into the following groupings:
Articulated robots - Also called robotic or manipulator arm(s). The most common industrial robot, they can be found from assembling parts on EV car manufacturing to packing eggs into egg cartons.
Cartesian industrial robot - Also called a linear robot. Movement is contained in straight lines along the X-Y plane and at right-angles with each other. This makes them useful in industries involving precision milling, plotters, CNC machines, and 3-D printing.
Collaborative industrial robots - Known affectionately as "cobots", these industrial robots are designed to closely work with humans. Because of the possibility of injury, collaborative robots come with advanced safety sensors and collision avoidance technologies. This allows them to detect when there is an intrusion (especially human!) in their work area. The cobot can then either slow its tasks, pause, or even stop entirely depending on how close the intrusion may be.
Delta robots - Nicknamed "spider robots," these machines consist of a core body with several attached light-weight arms that resemble spider limbs (hence the name). Delta robots are used for quick pick-and-place tasks like those found in the medical, pharmaceutical, and - especially - in the packaging industries.
Selective Compliance Assembly Robot Arm (SCARA) - These industrial robots main features are two horizontal joints designed to operate on a single plane. Arm movement is confined primarily to extending and retracting (folding). This design makes them well suited in high-speed pick-and-place and assembly tasks found in the electronics and automotive industries.
What Can Industrial Robots Do That Humans Can't?
Companies use industrial robots to carry out many different types of tasks in a variety of environments. Usually the tasks and/or environment are either dangerous to human workers or require levels of consistent accuracy, speed, and repetitiveness that a flesh-and-blood being simply cannot match.
Examples:
- High-pressure rooms or vacuum chambers.
- Certain clean rooms where even the slightest contamination can be costly.
- Areas where there are possibilities of threats such as explosions, infections, radiation, and other similar hazards.
Industrial robot arms can move in several directions. The manipulators can be equipped with any type of tool and be programmed to use them. The variety of applications this allows include:
- Cutting: Slash precise paths into materials through dangerous means like laser, plasma, and water jet cutters.
- Finishing: Grind, trim, fettle, polish, and clean products to a consistent quality and finish.
- Handling: Pick and place items as diverse as heavy crates to delicate eggs from the conveyor line to packaging.
- Palletizing: Load corrugated cartons or other packaged items onto (or off!) a pallet in a specific, programmed manner.
- Seal and gluing: Apply a sealant or glue accurately and consistently.
- Spraying: Spray volatile and hazardous applications like solvent-based paints and coats onto product surfaces.
In 2020, the industrial robotics market reached 37,876.0 USD million worldwide. Compound annual growth rate (CAGR) between 2021 to 2030 is to average 11.7 percent. By the end of the projected time period, market value is expected to reach 116,848.7 USD million.
Closing Comment
Industrial robots are robot systems primarily used in manufacturing for tasks not suitable for human workers due to extreme difficulty or hazardous environments. The five major types can be found performing a variety of tasks depending on their programming.
Contact an expert at Cybernet if your company uses industrial robots and is looking to find the right industrial panel PC or rugged industrial tablet to control or program them.
Join the conversation and connect with us on this and other relevant topics - Follow us Facebook, Twitter, and Linkedin.