Robot investments typically range from tens of thousands to millions of dollars, and it is important to make the right choices in the first place and avoid common mistakes, as mistakes can lead to unnecessary expenses or task delays. In order for users to avoid the most serious errors, this article provides a detailed list of several misconceptions that robot applications should avoid.
1. Underestimating payload and inertia
The top misconception among robot users in their applications is underestimating the payload and inertia requirements. Usually, it is due to the fact that the weight of the tools installed at the end of the robotic arm is not included in the calculation of the load. The second reason for this error is the underestimation or complete neglect of the inertial force generated by eccentric loads.
Inertial forces may cause overload on the robot axis. Overloading of the rotating axis is common in robots. Not correcting this issue can also cause harm to the robot. Reducing the load or reducing the speed parameter can terminate compensation for this situation. However, reducing the speed will increase unnecessary cycle time - the cycle that is reduced as part of the investment reward is ranked first in terms of purchasing robots. This is also why load related factors are very important from the beginning.
The effective load is very important, and some information provided by the technical parameters of ordinary robots is detailed. The rated load is only effective at the rated speed, and one of the important conditions for reaching the maximum load is to reduce the robot's operating speed. In addition, excessive load may also damage the robot's accuracy.
2. Underestimating cable management issues
As simple as it may seem, cable management is often overloaded due to its overly simplistic appearance. However, optimizing the path to the cables or peripheral devices installed at the end of the robotic arm is crucial for the movement of the robot equipment. Lack of estimation of potential problems will lead to unnecessary actions by robots to avoid cable entanglement and pressure. Moreover, assuming that dynamic cables are not used or reducing cable pressure may result in wire damage and shutdown.
The robot end effectors currently in use are usually driven by gas or electrical appliances, and inevitably have corresponding air pipes or cable connections. Most industrial robots have external air and electrical circuits, so it is important to pay attention to the part of robot motion control; There is also an industrial robot with built-in air and electrical circuits, which is very convenient. Just consider the cable management when the arm and end effector are in relative motion.
3. System issues
After considering each application, once the system is installed, you can be certain that all aspects of the application are what you need and avoid serious overspending caused by possible errors.
In addition to these, the working schedule of the robot is also one of the issues to consider. When the itinerary is certain, it is not only based on the technical parameters of the robot to determine whether it can meet the requirements of the application. It should wait until the end effector is installed to determine whether the robot's motion trajectory is likely to reach the required itinerary. This is also one of the key reasons for terminating simulation.
4. Misunderstandings of accuracy and repeatability
A precise machine can be repeated, but a repeatable machine may not necessarily have accuracy. Repeatability refers to the precise reciprocating performance of a robot between established positions according to a regular working path.
Accuracy is expressed by accurately moving to a calculated point according to the work path. In the transportation action, the robot moves to some fixed positions through calculation, utilizing the precise performance of the robot. Accuracy is directly related to mechanical tolerance and the accuracy of robot arms.
Accuracy is closely related to the mechanical accuracy of the robotic arm. The higher the accuracy, the higher the speed. The robot reducer is an important key structure to ensure the accuracy of the robot. Ordinary industrial robots use RV type standard reducers.
5. Neglecting related equipment of robots
Teaching aids, communication cables, and some special software are usually necessary, but they are easily forgotten in the initial order. These will lead to delays in the entire plan and exceed the budget. When choosing a robot product correctly, the first thing to consider is one's comprehensive needs and various aspects of equipment selection. A common situation is that customers sometimes fail to integrate some key equipment and robots together in order to save money.
At the beginning of the project, it is necessary to understand a series of contents such as the relevant equipment, software, etc. that need to be configured for the project. During the procurement process, relevant products should be ordered according to the application requirements of the project.