Construction Of An Electro-Hydraulically Controlled Drive Axis - Siemens SINUMERIK 840D Description Of Functions

1 General

1.3 Construction of an electro-hydraulically controlled drive axis

1.3 Construction of an electro-hydraulically controlled drive
axis
Fig. 1-1 Construction of an electro-hydraulically controlled drive axis
1.3.1 Machine guideway
Guide mechanism
Friction
1-18
SINUMERIK 840D/SIMODRIVE 611 digital Descr. of Functions HLA Module (FBHLA) – 04.00 Edition
SINUMERIK 840D,
SIMODRIVE 611 digital
with HLA module
Shutoff valve
Hydraulic power unit
Hydrodynamic and hydrostatic sliding or roller guides allow rectilinear motion
of machine slides and tables to take place with minimum friction and maximum
precision.
A certain degree of friction can be very useful for the purpose of damping os-
cillations.
However, excessive friction, especially pronounced transitions from static to
sliding friction, have a negative effect on the control result and impair the control
loop stability.
Servo solenoid value with
valve amplifier (OBE)
Machine guideway
Position measuring
system
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