Selection skills of manipulator

Robot arms are widely used in injection molding, machinery and other related industries, and automatic operation is realized. It is very important to select excellent products from a variety of products, and it needs to master certain skills.

The walking distance of the manipulator is related to the size of the parts, the lowering position and the shape of the machine. This distance is usually defined by the X, y and Z axes. Not all manufacturers define the travel in this way. A simple way to determine the required travel is to draw a layout. The layout not only identifies each stroke, but also identifies important items on the plan, such as auxiliary equipment, support columns and void areas.

Z axis. Whether to move the parts back and forth on the side of the machine or at the back, the parts with this stroke are only used to skip the machine.

Y axis. This distance is defined as the vertical travel, which is determined by the height of the machine and the required lowering height. In other words, the robot arm must be high enough to allow the parts to jump over the machine, and low enough to allow the parts to be lowered at a reasonable height from the ground.

X axis. This distance is generally called the recoil stroke, and its size is related to the part thickness. For example, in order to manipulate a bucket, it needs enough travel to extend the arm and pull the bucket out of the mold.

Payload is the weight that a robot can handle and is defined as follows: payload = component weight + arm end tool weight.

Torque is more important than payload. Torque is defined as the tendency of a force to twist and rotate around an axis, and is a function of the distance between the payload and the pivot point of the opponent. To ensure that the arm can manipulate the component, compare the actual torque with the available torque that can be supported.

The weight of components is often known for a specific purpose, but the arm end tool is not. The weight of the arm end tool can be estimated and obtained from the supplier.

From the above, it can be seen that the selection of the manipulator is mainly based on its travel and effective load, and the two are considered comprehensively to select a good robot equipment.