Classification based on Control Systems

On the basis of the control systems adopted, robots are classified into the following categories such as:

• Point-to-point (PTP) control robot
• Continuous-path (CP)  control robot
• Controlled-path robot

Point-to-Point (PTP) Control Robot

The PTP robot is able of moving from one point to the other point. The position are recorded in the control memory. The paths are not controlled by the path guide. Rather the desired path is traced by programming a series of points. Component insertion, spot welding, machine loading, hole drilling, unloading and crude assembly are some of the common applications of this kind of robot.

Continuous-Path (CP) Control Point

The movement along with the controlled path is carry out by the CP robot. Along the controlled path, with CP control, the robot might stop any specified point. In the robot's control memory, all of the points ought to be stored explicitly. Straight-line motion is being carried out by these types of robots. Some continuous-path controlled robots also contain the capability to follow a smooth curve path that has been described by the programmer. In this, manually the programmer moves the robot arm through the desired path and the controller unit stores a great number of individual point location along the path in memory.

Controlled-Path Robot

In controlled-path robots, the control equipment might develop paths of different geometry such like circles, straight lines, and interpolated curves along with a high degree of accuracy. Good accuracy might be attained at any point along with the specified path. Only begin and finish points and the path definition function ought to be stored in the robot's control memory. It is significant to mention that all controlled-path robots have a servo capability to proper their path.