Choosing the right articulated robot helps reduce automation costs
When designing an automation project, it usually involves the use of robots for object movement or repetitive movements. How to properly select the right robot type will have an impact on design cost and success rate. Presence-sensing devices that add machine vision systems or connect to robotic control systems provide adaptive motion.
It is reported that many robot manufacturers provide modeling and simulation software for specific tasks to assist customers in selecting the best solution. Load, direction, speed, travel, accuracy, environment and duty cycle are planned to fit the size and The focus of designing robot systems and motion control applications.
When it comes to industrial robots, most people think of some form of arTIculated robot. The definition of articulated robots is not rigorous and usually refers to robots with fixed mounting bases and four or six axes. The articulated robot can work in a three-dimensional space or working range, sweeping through points in the Polar Coordinate System space.
The articulated robot has a very wide working range and can place the end of the arm tool on an unlimited number of planes in an infinite number of angles, so the use of such robots is very diverse, including welding, painting, drilling, cutting, material handling, packaging and Applications such as assembly. The price of articulated robots is also high, and the coding of the controller is required for complex positioning.
The SCARA robot has a sturdy base with the arm fixed to the z-axis and rotated on the xy-axis. There is an additional xy-axis joint in the middle of the arm, and the linear brake at the end of the arm provides a 90-degree Z-axis motion with the plane of the base. The SCARA robot primarily mimics the movement of human arms and can operate at high speeds while maintaining high-precision positioning.
For parallel work planes, SCARA robotic arms are often used to complete process-to-process material handling applications and product assembly, and machine vision systems for complex, non-contact inspections. Laser, plasma cutters and routers mounted on the arm tool end perform precise etching, cutting and sanding operations.
Cartesian robots typically carry higher weights and lower costs than articulated or SCARA robots. Right-angle coordinate robots use a frame to spread the weight of the load and perform x, y, and z-axis motions in a constrained frame. The length of the frame can be tens or hundreds of meters of standard or semi-standard linear slides and ball screws, using a Cartesian coordinate system for positioning.
The Delta robot uses three sets of parallel arms and rotary or linear brakes, originally developed for lightweight pick and place equipment, and includes other applications including 3D printing, surgery and assembly. The parallel robot uses a lightweight arm with a small inertia to move quickly over a 360-degree circumference over the working range.
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