In product processing, our main goal is to save process equipment, shorten the production cycle, ensure the quality and improve the efficiency. The drilling center helps us to achieve these goals. Drilling center is a metal cutting machine tool and NC machining equipment, similar to the machining center on style and function but usually smaller than the machining center. Mainly used for cutting, drilling and tapping. The processed products are mainly small, porous, tapping, batch, light metal. It usually use the turret type tool magazine and linear guide rail to reduce the tool change time and the rapid traverse speed is faster than the machining center, and the machining efficiency of the machine tool is higher. It’s mainly applied in precision manufacturing industries such as electronic engineering, medical appliances, automotive industry, etc.
1. Main features of drilling center:
1. Small and flexible, fast
displacement speed, high spindle speed, fast drilling and tapping, fast tool
change;
2. The general itinerary does not
exceed 700 * 400 * 300;
3. The large-pitch screw and roller-type
linear guide rails can move up to 48m / min or 60m / min;
4. The common highest speed in
the spindle market can reach 12000rpm / 15000rpm / 20000rpm / 24000rpm;
5. Tapping speed can reach
4000-6000rpm;
Tool change time is an important
parameter in the drilling center. The speed of tool change is directly related
to the machining efficiency. Clamp arm type tool magazine adjacent tool change
time: 1.2sec, the farthest tool change time: 6-7sec (no jump type tool change),
servo type tool magazine adjacent tool change time: 1.4sec, the farthest tool
change time: 1.6 sec (jump-type tool change). Therefore, most of the drilling
centers on the market now use servo-type tool magazines.
2. Equipment
function debugging requirements
1. Functions of the drilling
center
The main function is
to perform drilling and tapping of the work piece and perform some boring and
milling processing. Most of the processing material is
aluminum and
copper.
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Milling
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Tapping
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Drilling
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2. Commissioning requirements
In the process of
drilling and tapping, the machine tool will have most of the dry run without
cutting. In order to improve the processing efficiency, it is necessary to
increase the axis movement speed during dry run as much as possible, at the same time, ensuring the position control accuracy of the axis. This
requires the servo to have faster response and positioning accuracy.
3. System
construction
Servo configuration:
XY axis iKAS202B, Z axis iKAS282B, turret axis KAS20AB-D
Motor model: 130-M06030,
130-M06030, 130-M10025, 90-02430
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System
side
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Server
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21MA,
M2 communication line
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M2
interface
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4. Related parameter settings
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Parameter
number
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Function
settings
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PA001 = 2
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Use absolute encoder as absolute
encoder
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PA509 = 9900
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Allow forward and reverse drive
and communication enable mapping
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PA606 = 1, 2, 3
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Corresponding axis number (if
three axes, please set separately)
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PA100 = 1000
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Speed loop gain, debug according
to specific conditions, default is 400
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PA102 = 800
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Position loop gain, debug
according to specific conditions
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PA202 = 1
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1st electronic gear ratio
(numerator)
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PA203 = 1
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1st electronic gear ratio
(denominator)
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Debugging results of Zhishan servo
1. Fast servo
response, accurate positioning, simple wiring and stable operation
2. The processed work
piece is well three-dimensional
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