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The machine bed is designed according to optimum mechanical principles, ensuring maximu stability and vibration free operation.
The machine bed is constructed of high quality "MEEHANITE" cast iron and has been heat treated, normalized and precision ground brefore machining,
The slideways are also heat treated and precision ground, making this machine virtually disortion-fee.
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1．High torque
The hydraulic motor features high torque even at low speeds. The regulating wheel remains exceptionally stable and smooth while operatin at low revolutions (6-8 rpm). The pauses and vibrations, which occur with traditional chain drive systems, are eliminated. |
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2．High rigidity
The regulating wheel is direct drive. Preloaded alloy bearings are
mounted on the regulating wheel shaft, increasing rigidity.
3. Consistent roundness
The direct drive regulating wheel also enables
the operator to freely adjust revolution speed (6-350 rpm).
Since the motor drives the spindle directly, part interference is eliminated.
Regulating wheel shaft run-out is kept within 2 microns,
no matter the revolution speed.
Accuracy and consistent roundness are achieved more easily than with traditional chain driven models.
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Both the grinding wheel and regulating wheel dressing units are hydraulically driven.Speed is infinitely vairiable.
Dressing slides are made of special alloy
cast iron which is processed by annealing treatment
The surface is processed with precision hand scraping,
ensuring outstanding wear resistance. This additionally assures a very smooth slide movement and workpiece straightness.
The angle of the regulating wheel dressing unit can be
swiveled to suit workpiece requirements, assuring cylindrical accuracy
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The grinding and regulating wheel spindles
are made of high quality alloy steel SNCM439.
They are normalized, hardened, heat treated,
tempered and finally deep cold treated,
precision ground and machined. They are
sturdy and strong enough to permit heavy
duty grinding at high speeds and assure
superior surface finish.
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The upper slide can be rapidly and precisely swiveled in order to
grind tapers during infeed grinding and to provide perfect
contact between workpiece and grinding wheel in thru-feed grinding.
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The lubrication system of the grinding'wheel spindle is fitted with a pressure switch.
This pressure switch allows starting only when oil enters
the bearings.
This safety protection prevents the-spindle from running dry and being damaged.
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1. Controls the oil temperature. Oil temperature is maintained at
a
constant temperature ( .5 C)and keeps the oil circulating automatically.
2. Assures the oil stability and prevents chemical change.
3. Increases bearing life by keeping the connection between spindle and
alloy bearings stable. The spindle dimension will not change
due to temperature change. A reduced oil temperature prolongs oil seal life, thereby reducing oil leakage.
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