Modern tool grinding machines are very compact in design. Machine tool components and add-on components increase the risk of collisions within the limited space of the machine tool. Programming systems with precision machine tool models ensure the reliability of machining. The new NUMROTO version 3.5.1 optimizes the machine tool model and collision test functions, and existing NUMROTO systems can be upgraded to the latest version.

The NUMROTO programming system has been around for more than 20 years and is now widely used on more than 2,500 tool grinders in the world. The software is chosen by tool manufacturers because it can process a wide range of tools and can independently develop grinding programs on tool grinders and test collision safety.

With the continuous development of computer capabilities, the entire tool grinder and grinding process can be simulated with the highest precision. Today, the vast majority of machine tools using NUMROTO are equipped with 3D simulation. Due to the application of 3D-CAD technology, the structural design of modern tool grinders has become more compact, and the internal space of the machine tool must be optimized to be suitable for grinding tools of various shapes and sizes.

What makes it even more difficult is that attachments within machine tools are often only used to process certain tools or programs, thus hindering other machining programs. Due to the presence of these obstacles, the programming system must continuously calculate the grinding path to prevent collisions, which requires an accurate and realistic machine tool model. NUMROTO version 3.5.1 is equipped with an easy-to-use machine tool model, ensuring that the machine tool model on the computer is consistent with the real machine tool motion.

Today, this basic model of a tool grinder is used in traditional tool grinding programming systems. Machine tools are often equipped with some machine tool components, such as support frames, tail seats, moving tool rests, special chucks for sintered castings or blades, dressing units, passivation devices and high-frequency spindles. Fixedly installed machine parts, such as dressing units or high-frequency spindles, are selected from the MUNROTO machine parts list with one click. These accessories are always visible on the machine model until the selection is deselected. For movable mechanical accessories such as support frames, the corresponding parameters have been edited for the motion state. Position-variable machine components can remain in a stop position during one machining step and then appear in a working position during a subsequent machining step. These are accessories that use electric, hydraulic and pneumatic drive units and are activated by corresponding CNC commands. The most complex part of the model is that the axes control the movement of machine tool components, such as moving the steady rest to and from a specified position.

Add-on components can be installed on each machine tool component. The pressing device is installed on the mobile support frame and the guide sleeve is installed on the mobile center frame. Addable components are available in a variety of shapes and sizes. If the machine tool needs to be reselected for another tool application, additional components of other sizes can be selected with just a click of the mouse in NUMROTO.

Machine parts and add-on components are stored in the NUMROTO database, so database backups are also possible. Even very complex machine details can be displayed very realistically due to the unlimited scope of optional additions.

Because the machine tool model is integrated into the programming system, the newly generated tool program can be tested in detail for collision safety before it is processed on a tool grinder. Crash tests run at high resolution, detecting collisions even between very small components.