The investment in robots usually ranges from tens of thousands to millions of dollars. It is very important to make the right choice at the first time and avoid common mistakes, because mistakes will lead to unnecessary expenses or task delays. In order to avoid the most serious mistakes for users, this paper lists the three mistakes that should be avoided in robot application.
1. Underestimating payload and inertia
The first mistake of robot users in application is to underestimate the demand for payload and inertia. It is usually caused by the fact that the weight of the tool installed at the end of the manipulator is not included in the calculation of the load. The second reason for this error is that the inertial force generated by eccentric load is underestimated or completely ignored.
Inertia force may cause overload of robot shaft. In robots, the overload of the rotating axis is very common. Failure to correct this problem will also harm the robot. Reduce the load or speed parameter to stop compensation for this situation. However, reducing the speed will increase the unnecessary cycle time - the cycle that is a part of the reduction in return for investment is the first in terms of purchasing robots. This is why load-related factors are very important from the beginning.
The effective load is very important. Some information given by the technical parameters of the general robot has detailed instructions. The rated load is effective only at the rated speed. One of the important conditions for reaching the maximum load is to reduce the operating speed of the robot. In addition, excessive load may also damage the accuracy of the robot.
2. Trying to make robots do too complicated things
Sometimes, the flexibility of the robot makes the designer take on too much work, which makes the robot unit too complex. Once this result is generated, it is difficult to reach the correct cycle time, or it brings additional difficulties to the disposal scheme, resulting in a lot of difficulties due to the speed limit of the disposal device. And once consumption shows defects, such errors are often magnified. In consumption, unplanned shutdown will incur huge losses.
Another situation is that the use of robots and work units exceeds the requirements of the original design. The added work only appeared after the simulation, which is easy to present a disappointing situation. Especially if there is no new simulation before the plan is pushed forward, the cycle of the rule may not be reached. Therefore, if we want to ensure that a cycle of robots is within the regular time, we should pay close attention to things that are beyond the scope of robots.
Before using robots, you must go through simulation and confirm the travel load and cycle time of the robot application according to the design requirements. Assuming that new applications of robots are added, you should stop some research before entering.
3. Underestimating cable management issues
As simple as it seems, cable management is often overloaded because it seems too simple. However, the way to optimize the cable or peripheral equipment of the tool installed at the end of the robot arm is very important for the motion of the robot equipment. Lack of estimation of potential problems will lead to unnecessary actions of robots to avoid cable entanglement and pressure. Moreover, it is assumed that the failure to use dynamic cables or reduce the pressure of cables may lead to damage and shutdown of wires.
The robot terminal actuators currently used are generally driven by gas or electric appliances, and there will inevitably be corresponding air pipes or cables connected. Most industrial robots use external air and electrical circuits, so the robot motion control part should be paid attention to; There is also an industrial robot with built-in air circuit and electrical circuit, which is very convenient at this time. Just think about the cable management when the arm and the end actuator move relative.