A CNC internal grinder machine contains a computer, which coordinates the operation of a thin, cylindrical metal or plastic disc through a rigid metal or plastic spinning wheel attached directly to a rigid internal grinding stem. CNC internal grinders typically contain an automatically manipulated, motor that rotates the grinding wheel at an optimal and predetermined speed. When the rotation of the inner grinding stem is impeded by a stuck, jammed, or improperly set up disc, the operator manually resets the disc in its position. The operation is repeated until the desired result is achieved.
CNC internal grinding machines come in two types. The first type is known as the fully automatic machine. These are self-contained machines that run without any human help and do not require any electrical power, except for the occasional plug-in for electric motors. They can operate on their own for hours or days on end with only on/off switch controls. Fully automatic CNC machines are ideal for small and limited applications requiring repetitive tasks.
The second type of CNC machine is the semi-automatic CNC machine. These machines feature a remote control mechanism that allows an operator to program the CNC internal grinding machine to perform a variety of functions such as drilling, cutting, honing, buffing, polishing or threading. This type of CNC machines may be programmed for a variety of different functions, although typically only a few options are available. Because many users do not have extensive mechanical experience, many companies and individuals choose to use semi-automatic CNC machines for more commonplace tasks rather than fully automatic CNC machines.
The last type of CNC machine is the fully automatic CNC machine. It differs from the other CNC machines in that it incorporates both the motor and the programmable CNC machine. Instead of using manually placed grinders to grind, the motor transfers the workpiece from the chuck to the grinding wheels. CNC grinding wheels are similar to those used in the home espresso maker. A CNC internal grinding machine consists of multiple grinders positioned in a circle around a workpiece so that the operator can precisely grind a specific area of the workpiece. The CNC machine’s software allows the operator to program the grinders to perform a variety of different actions such as continuously grinding at a single speed or to perform a series of different grinding actions in succession.
Typically, CNC internal grinding machines use either one or two precision ceramic disc grinders and a variety of different software programs to allow operators to design and program the grinders. Each machine may include different types of CNC grinding wheels; however, the majority of CNC grinders use a two-sided, rotary grinding wheel. Some machines may also feature a hand-held surface that is used to transfer grind from the CNC grinding wheels to the workpiece. The amount of grinding performed by each CNC grinding wheel may vary, depending on the requirements of the operator. Some companies may use a combination of two or even four CNC grinding wheels to achieve the most precision.
Another important factor to consider when choosing between CNC internal grinding machines is the type of work piece that will be worked with. In order to specify the proper CNC motor specifications for each type of work piece, it may be necessary to experiment with a variety of CNC grinding wheels and CNC software programs to find the optimum combination. Each type of work piece requires a unique program to prevent the possibility of human error or operator error. By choosing a CNC internal milling machine with the appropriate CNC grinding wheels and CNC software, operators can ensure that their CNC machinery will work flawlessly.