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

Fagor Interactive Editor

Interactive Editor Guides Programming Tasks

The Interactive Editor within Fagor’s conversational programming system leads the user through entering necessary variables to complete shopfloor programming operations. ...MORE

Heidenhain interface board

Interface Board Added to Control Line

Heidenhain offers a new interface board for its Profinet-IO to provide more options for users of conversationally friendly TNC controls. ...MORE

NC Software Offers Improvements to ManualPlus Lathe Control

Heidenhain’s software and hardware for its contouring control for CNCs and cycle lathes, the ManualPlus 620 control is designed to be compact and versatile and is characterized by its simple operation and programming. ...MORE

Getting in Touch with Optimal EDM Results

Makino’s Hyper i control for wire EDM uses touchscreen navigation in its user interface, which helps a basic user to match the productivity and capability of an experienced operator. ...MORE

What to Know about Torque Motors

Torque motors are commonly used in indexing tables on machine tools. This succinct article helps you evaluate this and other applications in which power transmission for rotation calls for the advantages of a torque motor. ...MORE

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