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KENNAMETAL/BalaDyne TABS Total Automatic Balancing System JcZX

Description of System

Reading the Vibration Level

The controller for the KENNAMETAL BalaDyne system is mounted on the operator's control panel and can be customised by means of the system software. The controller communicates with the machine controller via the vibration professional detectors, which are mounted on the tool spindle. Three other supplier of sensors measure the spindle speed, phase reference and the positions of the balancing weights. The controller reads the vibration level and phase angle and displays these values. The tool holder is lowered into the tower coil system down to a preset level. The controller waits for the machine to signal that the spindle has reached operating speed. It then reads the vibrations and compares them with the preset user parameters. If the vibration exceeds the preset limit, the machine controller receives the command to stop operation until the vibration has been corrected. The machine controller responds with a signal to the controller to start a balancing cycle.

TABS-Total Automatic Balancing System


Max. spindle	Rotating mass
speed	of spindle and	Typical correction accuracy (G-Spec)
(rpm)	tool (kg)	90 gmm	210 gmm	440 gmm
10.000	70	_	_	0,2
10.000	60	-	-	0,3
10.000	50	_	_	0,3
12.000	70	_	0,1	0,3
12.000	60	_	0,2	0,3
12.000	50	_	0,2	0,4
15.000	60	_	0,2	0,4
15.000	50	_	0,2	0,5
15.000	40	_	0,3	0,6
18.000	50	0,1	0,3	_
18.000	40	0,2	0,4	_
18.000	35	0,2	0,3	_
20.000	40	0,2	0,4	_
20.000	35	0,2	0,5	_
20.000	30	0,2	0,5	_
24.000	35	0,2	_	_
24.000	30	0,3	_	_
24.000	25	0,3	_	_
27.000	30	0,3	_	_
27.000	25	0,4	_	_
27.000	20	0,5	_	_
30.000	30	0,3	_	_
30.000	25	0,4	_	_
30.000	20	0,5	^_	^_

The controller automatically balances the tool holder to an acceptable state by automatically moving the counterweight rotors to minimise the vibration at the sensor. The controller then transmits energy pulses, which move the counterweight rotors to the correct position. A continuous feedback system ensures that the rotors balance the tool holder correctly. If the correct vibration is not achieved with the first adjustment, further adjustments are made until the vibration has been reduced correctly. Once the vibrations have been adequately reduced or eliminated, the machine controller resumes its normal cycle.

Recommended Speeds for Balancing


	Rings
	Balancing ring	Recommended
	gmm	speed (rpm)
	90	18.000 - 35.000
	210	12.000 - 20.000
	440 ¹)	10.000 - 15.000

¹) With DV50 and HSK 100 shank adaptors