5 main ways to select the screw-driven motion control system

 

Choosing the right motion control system can mean the difference between success and failure. To optimize performance, reliability, maintenance requirements and lifetime, design engineers must thoroughly evaluate their options, along with the most suitable lead screw configuration as a means to drive a specific application.

There are important motion control factors that affect the performance of linear motion that should be considered before choosing or designing a motion control system. Five things to consider during the evaluation are:

1.) Feed screw characteristics:-

The first question to ask is how big the screw is. Depending on the application, the main size considerations include the diameter and length of the lead screw and the loading capacity of the lead screw. Since you do not want the motion control system to be too large or too small, understanding the space and load restrictions that apply to the size of the lead screw is the first step in identifying the correct motion control system.

2.) Precision, synchronization and reverse driving:-

The next thing to consider is to evaluate the accuracy, synchronization and reversibility requirements of your application. Choose the cable that best suit the load and the time of your application ( screw turning distance once) Choose a cable that does not receive a load, do not slip and generate enough friction to maintain a linear movement.

What tone does the application guarantee? Like the cable, the tone (the distance between a point of a thread and the corresponding point of the next thread parallel to the axis) has a ramification, depending on the load, the distance traveled and the time.

How much torque is required to drive the system? To assess the torque requirements, you must take into account the inertia torque, the drag torque and the moving torque. The final torque is the torque required to drive only the screw assembly. Additional torques to consider includes the torques associated with friction bearings, motor shafts, other moving components and the trailers associated with misalignment of the overall assembly. In addition, it is necessary to evaluate the rear transmission torque necessary to reverse the system and return it to its original position.

3.) Power control option:-

What kind of energy do I need to run the system? Should I use an AC or DC powered motor or configure my system to accommodate power outages? What kind of control signal do you need? Some motion control systems may require high-precision control signals, such as those provided by Nook Sensor System

4.) Cost factor:-

To keep the system concise and working well, it is very important to predict the cost factors and evaluate the cost / benefit of the motion control system. Investigate the general costs associated with the system to maximize the cost / benefit ratio.

5.) Diagnosis, maintenance and IT:-

The final step in choosing a motion control system is to evaluate the availability of diagnostics for system maintenance and troubleshooting, evaluate general maintenance requirements and plan IT support. In other words, who owns the IP (intellectual property) of the motion control system? If your company performs diagnostics, maintenance and service, check with your IT department to see if your motion control provider provides the correct alternative solution