DRO Works
A digital readout (DRO) is a numeric display device with an integrated keyboard and a means of numeric representation. The general working of DRO is with an integral computer that reads signals generated by linear encoders or rotary encoders installed to track machine axes, using these measures to keep track of and display to a machine operator the workpiece position (e.g., milling machines), or tool position (lathes) in space.
DROs eliminate human errors such as misreading the hand wheel dials or losing count of hand wheel rotations. More importantly, they provide capabilities that are impossible with mechanical hand wheels and dials, such as switching from measuring inches to measuring millimeters.
Common features of DRO
| Repeatability | How closely can you return to a previous position |
|---|---|
| Resolution | The smallest increment that can be displayed |
| Accuracy | The accuracy specified by the manufacturer. |
| Clear to Zero | Press a button to set the readout to zero. |
| Direct Entry of Position | Enter your current position. |
| Inch/mm Display | Displays in inches or millimeters. |
| Power Off Memory | Maintain your coordinates and settings even if the power fails. |
| Reversible Count Direction | Set so the dimensions increase in either direction. |
| Find Center | Find the center of a workpiece. |
| Bolt Circles | Lay out a bolt circle with the press of a few buttons. Move to each hole position in turn. |
| Bolt Lines | Lay out a line of bolt holes with the press of a few buttons. Move to each hole position in turn. |
| Preset Points | Enter or move to points and store. Select stored points and move to them. |
| Tool Offsets | Touch off each lathe tool in your quick change tool post and record the offset. Recover the offset when you change to that tool. |
| Radius/Diameter | This capability is good for making slots or other features where you need to work to the dimensions of the feature, while maintaining your position on the workpiece. |
| Calculator | Use the keypad as a calculator. |
| Arc machining | Cut a radius or an arc by moving between closely spaces points. |
| Linear Error Compensation | Correct for scale deviations |
Technical Specification
- Table Size (mm) - 1370x254
- Longitudinal Travel (mm) - 890
- Cross Travel (mm) - 400
- Vertical Travel (mm) - 406
- Table (No. of T-Slots, - 3
- Spindle Motor (H.P.) - 3
- Spindle Speed Range (RPM) - 50-5440
- Steps - 16
- Spindle Taper - R8
- Spindle Nose to Table Top - 40-400
- Spindle Centre to Column Surface - 200-680
- Quill Travel (mm) - 127
- Auto Quill Feeds (per revolution) (mm)- 0.40/0.08/0.15
- Ram Travel (mm) - 480
- N.W. (Kg) – 1280
Machine Features
- Very high precision Milling Head.
- High precision Bearings and Screw Cap.
- The guide way is stuck with TURCITE B, a highly wear resistant material.
- High-Intensity casting body which is smooth and durable.
- High rigidity, high rubbing and high precision.
The various machining processes that we provide with DRO are
- Milling
- Boaring
- Rough Milling
- Drilling
- Counter boaring