How Do CNC Machines Work?

 

            If you are involved in the manufacturing industry in any way, shape or form, then you have probably heard of CNC machinery and the many benefits that it can provide, such as increased production quality, decreased payroll costs and enhanced safety on the work floor. However, it’s always a good idea to know just how CNC machines work, and to find out a bit more about the components that comprise these all-important machines, especially if you plan on purchasing a CNC machine or would like to operate one on the plant or shop floor. So, let’s take a closer look at the basics of CNC machinery.

 

            The main components of a CNC machine. Every CNC machine will have its own particular components. Most machines, as a general rule, will include some sort of guard (especially if the machine is designed to perform a function which may pose a safety risk to the operator), a motor, a lathe bed (which is connected to a headstock), and a vice. In addition to this, every CNC machine will have a microcomputer, a tool attachment of some sort and the part program. They will also feature a number of axes. These axes will either be linear or rotary, and the more axes that the machine has the greater the complexity of the jobs that it can perform. The number of axis and their directional motion are important, given that they will control the variety of programmable directions that are available with that particular CNC machine.

 

            Programming CNC machinery. Older NC machines were controlled by punch tape that held the commands that were to be executed. However, Computer Numerical Control (CNC) machines today are controlled by computer programs that are made up of alphanumeric data. Their various functions, input parameters, and motions are automatically performed based upon the information that has been programmed into its central machine control unit. This Central Machine Control Unit houses an all-important microcomputer that executes the inputted commands. Examples of commands that can be carried out include turning a spindle on or off or increasing the depth of a cut that will be made by the tool. Therefore, programming of the CNC machinery should be done by a trained engineer, in order to achieve the versatility the the CNC machinery allows for. A CAM (computer aided manufacturing) software can also be utilized to create more complex programs. A CAM system can be run on your PC, and can be used to increase the complexity of codes.

 

If you would like to learn more about CNC machinery and its many benefits, purchase your Copy of The CNC Insider: Fundamentals of the Computer Numerical Control Machine Industry today at TheCNCInsider.com! It is a valuable resource guide for anyone who would like to start or expand a CNC manufacturing business, and includes a comprehensive directory of the top CNC suppliers, inspectors, auction services and much more!