Magnet Yoke Mounting - Tecnotion UC3 Series Manual

Note that only when the right references and dimensions as listed in table
3.5 are applied the right dimensioned air gaps (A1 and A2, see picture 3.6)
will be obtained. The dimensions of the coil units and magnet yokes can be
found in APPENDIX A.
3.5

Magnet yoke mounting

Especially the magnet yokes must be handled with care. They are
sensitive to mechanical shocks. Never drop a magnet yoke or
release it in an uncontrolled way!
Be sure that the mounting surfaces are free of contamination.
Particles > 0.1mm can cause inaccurate placement and
consequently damage to your Linear Motor.
The magnet yokes contain a strong magnetic field. Lose iron
objects that are brought within 5cm of the yokes, can be drawn
into the yokes and cause damage.
Magnetic sensitive objects like banking cards or other magnetic
information carriers may be damaged if they are brought within
1m of the magnet yokes.
The magnet yokes do attract each other while mounting. Take
care that the closing plates of one yoke do not damage the
magnets of the neighbour magnet yoke while mounting.
©2016 Tecnotion BV - All rights reserved - The contents of this document are subject to change without prior notice.
It is recommended to start the mounting of the magnet track with the
middle – and preferably the longest – magnet yoke. This middle yoke can
be aligned using the 3mm dowel pins or a milled reference.
Fix the magnet yoke on the mounting surface with bolts using the
prescripted tightening torque.
The following yokes can be mounted with mechanical contact using the
mutual attraction force of the magnet yokes.
Take care: apply the principle of controlled rotational mounting.
A straight forward directing and placing of the yokes implies the
risk of striking due to magnetic forces. Uncontrolled approach
may cause damage to the magnets (see picture 3.7)
Picture 3.7: Principle of controlled rotational mounting of the magnet yokes
The next magnet yokes should not be aligned on dowel pins. Using a track
of pins has two disadvantages:
1. In that situation rotational mounting is difficult.
2.
Mounting can be impossible because of tolerances. The yokes are
designed for a contact mounting without guaranteed gap
between them.
Using a milled axial reference is advised for placement of the next tracks.
CH 3
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INSTALLATION