Zone: CNC & Machine Controls

OVERVIEW: The CNC (computer numerical control) system of a machine tool includes the control unit itself, as well as less visible parts of the motion-control system such as the servomotors, drives and axis positioning devices. These components are part of any CNC machine tool, but they might be bought separately and retrofitted later on older machines that are upgraded or refurbished. Also part of the control system are sensors that may allow the control to make certain real-time decisions during unattended or lightly attended machining processes. These can include probes for measuring the position of the part or machined features, as well as monitoring systems for detecting the presence of the tool or the force that is being exerted in the cut.

Featured Zone Content

This part has taken eight setups

Move The Program Instead Of The Part

A complex five-axis part with hard-to-reach datums is machined in two setups instead of eight, thanks to a process that rewrites the tool paths to match the part's position....MORE

closed loop machining

Accuracy Gain From Linear Encoders

If the position of a machine tool’s axis is measured using a rotary encoder, then potentially the ballscrew is being asked to perform two contradictory functions. The ballscrew both drives the axis into position and indicates that position—because the ballscrew lies in between the encoder and the moving element of the machine. Control technology supplier Heidenhain calls this “semiclosed-loop” operation. ...MORE

Heidenhain RCN series absolute angle encoders

Angle Encoders Integrate Safety Components

Heidenhain offers a version of its RCN series absolute angle encoders with built-in functional safety components that enable machine shut-off in case of a malfunction. ...MORE

Leine & Linde Model 862 rotary encoder

Rotary Encoder Provides Diagnostics

Available from Heidenhain, Leine & Linde’s Model 862 rotary encoder with Profibus DP supports condition monitoring systems for use in the steel, wind power and other industries. ...MORE

Renishaw RLS AksIM true-absolute rotary encoder

Absolute Magnetic Ring Encoder Enables Embedded Applications

Available from Renishaw, RLS’s AksIM true-absolute magnetic rotary encoder is designed for embedded OEM motion-control applications. ...MORE

Siemens Sinumerik 808D Advanced CNC

CNC Improves Accuracy of Milling, Turning Machines

Siemens’ Sinumerik 808D Advanced CNC offers a range of design features said to improve the accuracy, surface finish, safety and communication of the control for basic milling and turning machines. ...MORE

DMG Mori Seiki CELOS control

Scalable Control Inspired by Smartphones

DMG Mori offers its CELOS control to simplify and accelerate the manufacturing process with a smartphone-like design. ...MORE

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