Pragati Automation -- BTP Assembly and Features

Tool Turrets

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TOOL TURRETS

SPECIAL FEATURES

Three piece face gear coupling allows tool disc to be indexed without lifting. It also ensures high repeat positioning accuracy an rigidity.

'Parallel Index' cam mechanism allows fast and smooth indexing of heavy tool disc's. Computer generated cam profiles ensure shock-free indexing action.

Totally enclosed, robust mechanism, with oil bath lubrication.

Electrical elements are conveniently located in a separate area, free from oil and coolant.

Bidirectional working can index in either direction to allow shortest indexing time.

PRINCIPLE OF WORKING
   Electric motor drives the cam shaft through a system of gears. Cam shaft indexes the follower shaft through a 'parallel index' drive mechanism. Cam shaft is also geared to the 'drum cam' which controls clamping and release of the 3 piece coupling.
   One revolution of cam shaft completes one indexing cycle of 'declamping - indexing - clamping'.
   Absolute position encoder gives feedback of the turret position. Proximity switch inspects the clamped position of the turret.

SPECIFICATIONS
Turret Model		BTP-125		BTP-100		BTP-80		BTP-63		BTP-50
Version		STD	SLOW	STD	SLOW	STD	SLOW	STD	SLOW	STD
Inertia of Transportable masses	kg.m²	5	9	3	5	1	2	0.5	0.8	0.25
Total Indexing time for adjacent station ( 30° or 45°)	sec.	0.75	1.1	0.6	0.9	0.45	0.55	0.4	0.5	0.25
Indexing Frequency	1/min.	12		15		15		15		15
Repeat Positioning Accuracy	deg	± 2"		± 2"		± 2"		± 2"		± 2"
Indexing Accuracy	deg	± 6"		± 6"		± 6"		± 6"		± 6"
Total Weight ( Without tool disk)	kg.	140		91		58		38		22

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