XUM-1206GS-1NC High precision CNC centerless grinding machine adopts modular design, which is composed of nine parts: bed body,grinding wheel, regulating wheel, feed, dressing, loading and unloading unit, electrical control unit, lubrication unit and water tank cooling unit. The specific structure of each part is as follows:
1. Sand wheel shaft adopts double support static pressure spindle structure, with extremely high bearing capacity and rotary accuracy, high precision, long service life and so on.
2. The grinding wheel spindle lubrication unit adopts constant temperature lubrication system, and the working temperature can be adjusted according to the demand, which can effectively prevent the thermal deformation and mechanical wear caused by the temperature rise of the spindle.
3. The guide wheel shaft adopts the front bearing bush double support bearing bush structure, with extremely high bearing capacity and rotation accuracy. The rotary drive of the regulating wheel is driven by servo motor and reducer. Delta servo and brand reducer are adopted for frequency control, which can adjust the grinding speed required by different processing processes in real time in the processing program.
4. The guide wheel box is driven by Keenshi PLC numerical control system, the minimum feed: 0.001mm accurate and stable feed.
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Machine model |
HG-1206GS-1NC |
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Power supply |
Three phase 380V 50Hz |
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Sand wheel shaft structure |
Double support static pressure structure |
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Guide wheel shaft structure |
Double support bearing bush construction |
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Grinding diameter range |
Φ0.2～Φ30mm |
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Maximum grinding length |
Crush grinding：150mm |
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Grinding feed mode |
Numerical control feed |
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Grinding wheel specification |
Outer diameter x thickness x aperture Φ305mm×150×Φ120 mm |
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Grinding wheel motor power |
7.5PH |
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Grinding wheel linear speed |
35 m/s |
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Grinding wheel speed |
1950 rpm |
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Guide wheel specification |
Outer diameter x thickness x aperture Φ205×150×Φ90 |
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Regulating wheel speed |
10～200 rpm Continuously viable |
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Minimum feed |
0.001mm |
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Adjust wheel tilt Angle |
+5°～- 3° |
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Adjust the rotation Angle |
±5° |
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Hydraulic pump motor power |
0.75kw |
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Cooling pump power |
0.21kw |
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Control system |
Japan Keenses PLC |
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Grinding accuracy |
Roundness ＜0.001mm |
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Cylindricity ＜0.0015 |
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Surface roughness＜Ra0.16 |
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