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Machine Tool
Builder Demands Ultra-Precise Racks To Eliminate Need for Error
Compensation
Customer’s
Problem
For
years, a machine tool builder had manufactured their own precision gear
racks to achieve ultra-precise positioning on their machines. They
also needed this because their critical customers demanded that their machines
maintain accurate positioning without any error compensation on the
axis.
To save
costs, they wanted to find a gear rack supplier who could achieve the
same tight rack tolerances and performance level that they had come accustom to.
ATLANTA’s Solution
Choosing from their wide range of
standard rack & pinion drives, ATLANTA offered a high-quality DIN 4 gear
rack, which had a total pitch deviation of less than twelve microns
(0.012 mm) over a one meter length. The total pitch deviation was
measured at 20º C and marked on each rack.
To achieve the high rack strength the
customer required, the root of the rack teeth were hardened along with
the tooth flanks.
Finally,
precision grinding was used to achieve the required flatness tolerances
on the back and sides of the rack.
The customer was able to
use the gear racks supplied by ATLANTA to build new machines with the
same level of quality as in the past, as well as replace old racks in
the field.
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ATLANTA
