International Tool Machine’s Rotary Transfer Grinder (or RTG) machine resembles a compact grinding cell consisting of up to five precision grinding stations, all connected by a high-speed rotary transfer mechanism. The RTG stations can be configured to grind Flutes, OD-Relief, Points, Face, Counterbores, Chamfer, Groves, Endteeth, Endface ID, flip parts, and production of parts that require multiple surfaces to be ground. With up to 21 FANUC CNC-controlled axes, setup time is fast (less than 15 minutes), making the machine economical for both large or small production runs.
To begin the cycle, a part is presented to the loading station. ITM can provide an automated load/unload station with an integrated FANUC LR Mate 200iD robot turnkey system. The rotary table can carry up to six collets, indexing for accurate and fast part exchange from station to station. The loaded part is now at the first workstation. Next, all of the workstations perform their programmed grinding application and another part is simultaneously loaded/unloaded. The workstations can be designed and arranged in a variety of combinations depending on your application with the ability to have all stations work simultaneously. This equates to the total production time equal to the longest single operation plus transfer time, making this the perfect production machine for your tools and parts.
One RTG machine can produce a complete part, an advantage over conventional machines that usually requires three or more machines. This reduces set-up time, cycle time, floor space requirements, as well as operator involvement. The parts are produced with the highest level of quality. It also means that the feedrates for the shorter grinding operations can be reduced to match the cycle time for the longest operation, increasing wheel life and part quality, because finer wheels may be used to achieve higher surface finishes.
Features and options of the RTG include direct drive motorspindles of up to 50 HP, state of the art FANUC CNC, bushings, V-block or Tailstock support, automatic wheel balancing, automatic locating probe, integrated blank oversize check, integrated quality control and FANUC Robots for loading of heavy and unique shape parts.
Next, ITM’s Universal Flute Grinder model UFG-25 is a flute grinding machine capable of straight fluting and right and left hand flutes with or without gunnose. This demonstrates the FANUC LR Mate 200iD robot loader integrated with the flute grinding process. ITM’s UFG-25 is grinding 3/8" tap blanks, 3 spiral flute with gunnose. Utilizing FANUC’s latest 6-axis LR Mate 200iD robot for loading and unloading, the tap blank is securely held between the workhead and hydraulic tailstock. This safety cage built around the robot with proximity switches connected to the doors restricting any access to the robot while it’s in automatic mode. ITM builds machines with performance, safety and reliability in mind.
To learn more about International Tool Machine and their full range of CNC Tool and Cutter Grinder solutions, please visit
www.itmfl.com.