Sets of DRO and optical rulers for machine tools

A digital readout (DRO) processes electrical signals received from optoelectronic linear position transducers (optical scales), displays the received information on a digital screen, and assists in machining operations.

The primary purpose of a DRO is to display the coordinates of moving axes on milling or turning machines.

Using a DRO improves manufacturing accuracy and reduces the percentage of defects due to the direct indication of the actuator position. This eliminates the need to adjust for backlash and calculate the conversion of dial scale divisions to the actual final size.

Modern ASD digital readout devices offer additional functions:

Circle division function (flange drilling);

Coordinate tracking;

Tool radius compensation;

Workpiece center determination;

Memory for 200 tools;

Workpiece tilt calculation;

Drive error compensation;

The desired calculator function;

Relative and absolute coordinates;

Metric/inch units;

Non-volatile memory;

DRO Specifications:

Voltage: AC 80V-260V/50Hz-60Hz;

Number of coordinates: 2, 3, 4;

Display: 7-digit display with caption or LCD;

Input signal frequency: >100 Hz;

Resolution: 10 μm, 5 μm, 1 μm, 0.5 μm, 0.1 μm;

Control panel: protected keyboard.

Impulse linear scales with an optical head are used as precision measuring instruments. The main characteristics of this instrument are the measurement resolution (0.1/0.5/1/5/10 μm) and their precise repeatability, which characterizes the final accuracy of displacement measurements.

Equipping the machinery of enterprises with sensors (optical rulers) and DRO allows not only to compensate for existing equipment play, but also to produce complex parts by lower-skilled machine operators.