The main technical characteristics of the installation:
Resolution of measurements, μm............................................................................1
Measurement inaccuracy, μm................................................................................15
Control time of one pipe, sec…….......................................................not more 90
Operating conditions...................................................................................workshop
Requirements for the basing of pipes:
Аccuracy of positioning along the longitudinal axis, mm..............................2,0
Аccuracy of end positioning, mm.....................................................................±5,0
Previously on the surface of the thread should be applied a layer of finely
divided talc by spraying.
6.3 Production machines with parallel and hybrid kinematics
As shown in chapter 1, the principles and methods of mechatronics
are fundamental and practical basis for the design and implementation of
machines with parallel and hybrid kinematics. The construction of machines
of this class based on the use of the three integration methods described in
chapter 3. Thanks to the advent of high performance computers and intelligent
mechatronic modules, it became possible to control the movement of vehicles
with nonlinear structure in real-time. Mechatronic approach to the integration
of precision mechanics and microelectronics, computing and sensor devices
makes promising the creation and implementation of machines with parallel
and hybrid kinematics in a variety of industries.
6.3.1 Mechatronic center «GEXAMECH-1» for the aerospace industry
In September 2003 mechatronic center «GEXAMECH-1» was presented
at the international industrial exhibition in Moscow [26]. The centre was
developed by the specialists of a number of Russian research institutes: the
National Institute of aviation technologies (NIAT), Novosibirsk state technical
University, company «Siberia-mechatronics» and other organizations. Machine
manufacturer – Savelovsk machine-building plant. General view of the center
shown in Fig. 6.10.
The Center is designed for machining of long (to 3 m) of products in the
aerospace industry. To do this, the composition of the machine we have a
desktop with linear movement. Hexapod having six driven rods, installed on
263
steel octagonal base. The movable platform carrying spindle made of an alloy
based on titanium and reinforced with steel sections. Design optimization of
mechatronic machines are made using special software developed by the
company «Siberia-mechatronics». Tool mental store has 24 items.
Figure 6.10 – Mechatronic center «GEXAMECH-1»
The main technical characteristics of the hexamech
Working area, mm........................................................................3000 х 800 х 700
Orientation of the working element, °:
with respect to the B axis...................................................................................±3 0
with respect to the A axis....................................................................................±25
on both axes in the center of the working area................................................±45
Spindle power, kW...................................................................................................30
Maximum rotation speed, min
-1
....................................................................30 000
Maximum travel speed, m/min.............................................................................30
Maximum acceleration.............................................................................................lg
Accuracy of movement (at a distance
1000 mm), µm ........................................................................................................100
The machine is equipped with a CNC system RA 8000 NT HS by Power
Automaton GmbH, which has an open architecture. To eliminate special and
unacceptable configurations and movements of the hexapod, a special software
module was developed. This module monitors the speed and acceleration limits
in the drives, excludes the possibility of reaching the boundaries of the working
zone by linear or orienting degrees of mobility. All dangerous situations are
visualized on the display of the control system.
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