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Heidenhain: Exposed Linear Encoders (LIC Series)
Heidenhain: Exposed Linear Encoders (LIC Series)
 
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Heidenhain: Exposed Linear Encoders (LIC Series)


Linear encoders from HEIDENHAIN for numerically controlled machine tools can be used nearly everywhere. They are ideal for machines and other equipment whose feed axes are in a servo loop, such as milling machines, machining centers, boring machines, lathes and grinding machines. The
beneficial dynamic behavior of the linear encoders, their high permissible traversing speed, and their acceleration in the direction of measurement predestine them for use on highly-dynamic conventional axes as well as on direct drives.


HEIDENHAIN also supplies linear encoders for other applications, such as:

  • Manual machine tools

  • Presses and bending machines

  • Automation and production equipment


Advantages of L
inear Encoders

Linear encoders measure the position of linear axes without additional mechanical transfer elements. The control loop for position control with a linear encoder also includes the entire feed mechanics. Transfer errors from the mechanics can be detected by the linear encoder on the slide, and corrected by the control electronics. This makes it possible to eliminate a number of potential error sources:

  • Positioning error due to thermal behavior of the recirculating ball screw

  • Reversal error

  • Kinematics error through ball-screw pitch error

Therefore, linear encoders are indispensable for machine tools on which high positioning accuracy and a high machining rate are essential.


Linear encoders
measure the position of linear axes without additional mechanical transfer elements. This eliminates a number of potential error sources:

  • Positioning error due to thermal behavior of the recirculating ball screw

  • Reversal error

  • Kinematics error through ball-screw pitch error


Linear encoders are therefore indispensable for machine tools on which high positioning accuracy and a high machining rate are essential.


Exposed linear encoders
are designed for use on machines and installations that require especially high accuracy of the measured value. Typical applications include:

  • Measuring and production equipment in the semiconductor industry

  • PCB assembly machines

  • Ultra-precision machines such as diamond lathes for optical components, facing lathes for magnetic storage disks, and grinding machines for ferrite components

  • High-accuracy machine tools

  • Measuring machines and comparators, measuring microscopes, and other precision measuring devices

  • Direct drives


Mechanical Design

Exposed linear encoders consist of a scale or scale tape and a scanning head that operate without mechanical contact. The scales of exposed linear encoders are fastened to a mounting surface. The flatness of the mounting surface is therefore a prerequisite for high accuracy of the encoder.


Absolute Encoders

The LIC exposed linear encoders permit absolute position measurement both over large paths of traverse up to 28 m and at high traversing speed. In their dimensions and mounting, they match the LIDA 400.


Model No.:
LIC 2117, LIC 2119, LIC 2197, LIC 2199, LIC 4113, LIC 4115, LIC 4117, LIC 4119, LIC 4193, LIC 4195, LIC 4197, LIC 4199


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