Product DescriptionProduct description
Bt-150DS is a six axis CNC tool grinder, which is composed of six axes: grinding wheel
swing axis (x axis), workpiece feed axis (Y axis), grinding wheel vertical motion axis (Z
axis), workpiece horizontal rotation axis (c axis), tool indexing axis (a axis) and grinding
wheel inclination angle (b axis). The machine tool is suitable for the production and
grinding of medium and large quantities of carbide insert, PCD insert, CBN insert and
rotary carbide tools. As long as the alignment is completed and the switch is pressed, the
system will automatically complete the grinding under the action of the gravity of the
heavy hammer, realizing the ideal state of "constant pressure grinding and flexible
feeding". Due to the high hardness of diamond material (PCD) and the rapid wear of
grinding wheel, the system can automatically detect and compensate this wear, and can
maintain the dimensional accuracy of grinding for a long time.
Machine features:
1.
Mechanical structure of machine tool: the machine tool bed (base) adopts an
integral casting weighing up to 1.5 tons, which can meet the grinding requirements of anysuperhard material. The machine tool is equipped with a grinding fluid protective cover to
ensure that the grinding fluid will not splash everywhere. The optical lens barrel and CCD
camera are equipped with protective covers to ensure that the lens does not enter water
during operation and that its optical adjustment is not inadvertently changed. Lighting
lamps are installed inside the machine tool.
1.
Machine tool motorized spindle: the grinding head adopts high-precision
frequency conversion speed regulation motorized spindle, power: 5 O kW, the maximum
speed can reach 8000 rpm. It is cooled by circulating water. The rotation accuracy of
grinding head spindle: end jump 0.002 mm and diameter jump 0.003 mm.
1.
Machine tool guide rail: high precision needle roller guide rail is adopted, which
significantly improves the rigidity, accuracy and durability of the machine tool
1.
Servo mechanism: the control servo structure is adopted. Three linear feed axes
(x-axis, Y-axis and Z-axis) and three rotating axes (c-axis, b-axis and a-axis) are
controlled by servo motor, and four axis linkage can be done under the drive of application
program. The grinding efficiency is improved and the grinding quality of the cutting edge is
improved.
1.
Grinding head reciprocating swing mechanism: the grinding head swings under
the drive of servo motor. The swing frequency is 0-60 times / min, and the swing amplitude
is freely adjusted between 0 and 120mm, so as to make the grinding wheel consume
evenly and sharpen in time, so as to ensure the grinding accuracy and roughness. The
mechanical swing, swing amplitude, swing frequency and swing position controlled by NC
program can be set in the program.
1.
Angle encoder: after detecting the tool, it can accurately restore the grinding
position of the tool and avoid the disadvantage that the tool is not reset after multiple
grinding. The angle resolution of the digital encoder is up to 1 '.
1.
Lubrication system: the lubrication system adopts intermittent automatic
lubrication system. The user can set the refueling time and refueling time interval to
ensure the service life of the screw rod.
2, Technological breakthrough1.
Grinding application software: the grinding software independently developed by
our company can set grinding parameters such as tool angle, arc size and feed speed.
After aligning the tool center, the machine tool can automatically grind high-precision tools
by setting basic parameters through grinding software. All parameters of the machine tool
are managed by the database system, which is called by the processing program name to
facilitate the storage and search of the program. The software can display the tool image
and the coordinates of the NC axis, and can generate a calibration line to display the
center position of the rotation axis. At the same time, the software is responsible for the
communication between the interface and the NC system. It can synthesize the grinding
wheel parameters, tool parameters and processing parameters (such as feed rate, feed
speed and residence time) of the software interface to generate the NC code (G code)
and transmit it to the NC system to make the machine tool automatically complete the
grinding. The software has four cycles for any combination: 1) middle edge grinding, 2)
right edge grinding, 3) left edge grinding and 4) arc grinding. It can meet all the
requirements of customers and minimize the time of grinding air.
1.
Automatic dressing of grinding wheel: the automatic dressing device of grinding
wheel is installed on the working feed shaft (Y-axis), which can automatically trim and
clean the diamond grinding wheel driven by the servo motor.
1.
On line measuring device: the contact measuring device is installed on the
pneumatic folding support to avoid interference with the working grinding wheel. When
measurement is needed, the tool after grinding is measured under the drive of the NC
program. The difference between the actual measured value and the set value is the wear
amount of the grinding wheel, which can be automatically compensated into the thickness
value of the grinding wheel.
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