Computer numerical control machines (CNC machines) and 3D printing are two typical applications for Cartesian coordinate robots. Milling machines and plotters use the most straightforward application, in which a tool, such as a router or a pen moves around an X-Y plane and is lifted and lowered onto a surface to produce a specific pattern.
Cartesian coordinate robotics can also be used in pick-and-place machines. Overhead gantry Cartesian-robots, for example, are used to load and unload components used in CNC lathe line, working in three axis (X, Y, Z) pick and place operation of heavy loads at high-speed and with high precision.
Cartesian Robot Advantages
- They can move heavy payloads due to their compact construction and straight-line travel.
- A single controller can control many robots, obviating the need for PLC solutions or IO between several controllers.
- They can carry heavy loads over long distances because they have long strokes of around 2 meters.
- Their actions and roles are exact and repeatable.
- Cycle times are shortened due to their rapid moving speed and acceleration.
- The option to set 2-units on the Z-axis and minimizes mounting space.
- It can be built with virtually any linear actuator and several drive mechanisms (together with belt, lead-screw, actuator, or linear-motor).
- This mechanical structure simplified the Robot control arm solution, among other things and if working in 3D space, it is highly dependable and precise.
Cartesian Robot Disadvantages
- On the other hand, Cartesian robots have drawbacks such as requiring a vast amount of space to run and being unable to work underwater.
- When operating in a dangerous environment, these robots also need special protection. Another downside of this robot type is that it is usually slower than the others.
- When the air is dirty, it is often difficult to keep dirt out of the sliding components.
- The use of an overhead crane or other material handling equipment to access the work envelope may be prohibited, and repair may be complicated.
Post time: Dec-26-2022