Grinding Machines

Glebar pairs the wider work wheel with an oscillating regulating wheel powered by servo motors to reduce setup time and improve sphericity. The slides can be programmed to finite positions through a touchscreen HMI. When an operator selects a job, the servo motors automatically adjust to programmed positions which reduces setup time.

This model is part of the GrindSmart® series of tool & cutter grinding machines with an axis configuration that incorporate 6 fully interpolated axes (3 rotary and 3 linear) and is unique in this industry. The machine also incorporates linear axis drive technology. 

In addition to speed, the new robots handle an increased number of workpieces/tools, are more compact and consume less energy. They also support the latest WALTER HELITRONIC Tool Studio and Robot Manager software that allows users to load multiple trays with various workpiece diameters for lights out unattended production.

Both grinding spindles are “synchronous direct‐drive spindles” with 19 hp peak each. The most important feature of a synchro­nous motor is that it provides constant speed during its operation and that the torque curve is highly efficient, as per above graph. The rotational force is not reduced with higher RPM’s. Synchronous motors always run at a speed equal to their syn­chronous speed, as opposed to asynchronous motors (induction motors) which always have a lag and are therefore less effi­cient. 

The updated automation package accommodates denser pallet arrays for improved lot sizes and runtime, while delivering smoother robot operation and better repeatability. Additionally, the system can now adapt to multiple part profiles to be produced within a single run. An optional laser marking system has also been integrated for automated tool marking, in addition to many other new features.

Dental tool grinding on the 5-axis GrindSmart Nano5 grinding machine offers exceptional flexibility in comparison to conventional single-purpose grinders. With its 5 fully interpo­lating CNC axes and a pick-and-place automatic tool loader, the machine can easily be adapted for any type of dental cutting instrument, both for short and long runs. 

Every grinder provides four to seven times longer duty cycle under load and eight times less speed degradation than the  competition. The grinders provide smooth, quiet power for grinding cleaning, deburring, chamfering and sharpening.

The Minimicromar3 is designed for measuring external diameters, positioning and length for both smooth and interrupted surfaces.  It can measure workpieces from 25mm to 42.5mm with a measuring range of ±100 µm and a repeatability of ≤0.1 µm.  It is designed with a high degree of protection against coolant and abrasive substances.  Its low thermal drift value (<0.1 µm/°C) helps maintain high measurement precision.

The machine’s capabilities include a 15 kW direct-drive motor that produces maximum wheel spindle speed of 6000 m/min. X-axis stroke of 330mm features a rapid feed rate of 5m/min, Z-axis stroke is 2150mm with 10m/min rapid feed, and maximum work spindle speed is 200 rpm.

Pinch grinding offers accurate geometrical dimensions on the blank and tight surface finish requirements. In pinch grinding, the roughing and finishing wheels grind parts simultaneously, with the finishing wheel trailing the roughing wheel. The rough and finish grinding are performed in one pass. This innovative way to cylindrically grind parts eliminates separate processes and reduces cycle time.