Choosing the right robotic solution for every application
Though industrial robots have their individual strengths, manufacturers should consider the requirements of their application before deciding which to purchase. The payload, stroke length, precision and flexibility needed will all influence whether a linear or articulated robot is the right choice. The existing infrastructure should also be a factor, and which type of robot would integrate more effectively. Three of the most popular robot types are Cartesian, six-axis and SCARA robots. Cartesian Robots Cartesian robots are a common choice in industrial applications. They operate by moving along three orthogonal axes using the Cartesian Coordinate system. They are also known as linear robots, as they move in a straight line along a support frame, rather than rotating. Cartesian robots do not offer as much in terms of flexibility as articulated robots. They are an excellent choice for processes that require strength and reliability, but for applications requiring more degrees of freedom, an articulated robot may be more suitable. The rectangular work envelope on a Cartesian robot means that more of its footprint is active workspace, with no ‘dead zone’. This is more circular in a six-axis robot, meaning that there is more dead space, but the larger number of axes allows more range in the types of movement that can be done. The footprint of a Cartesian robot is well defined and thus can be easily integrated into existing infrastructure. They may require a lot of space to install and run but can be mounted overhead or on walls depending on the size, saving space on the ground floor. Speed is another important factor to consider — speed impacts cycle times, so the speed capabilities of the robot should fit manufacturer requirements in terms of productivity and output. Cartesian robots are a great choice for processes requiring high speed and fast […]