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Tool Turrets

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

  • Totally enclosed, robust mechanism, with oil bath lubrication.
  • Bidirectional working can index in either direction to allow shortest indexing time.
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TOOL TURRETS FOR CHC LATHES

Special Features

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

  • 1. Torque Motor
  • 2. Encoder
  • 3. Turret Clamp Switch
  • 4. Cam Shaft
  • 5. Follower Shaft
  • 6. Drum Cam
  • 7. Fixed Coupling
  • 8. Indexing Coupling
  • 9. Sliding Coupling
  • 10. Disc Spring
SPECIFICATIONS UNIT BTP-160 BTP-125 BTP-100 BTP-80 BTP-63 BTP-50
Inertia of transportable masses kg.m2 15 5 3 1 0.5 0.25
Indexing Time for 8 station Turret 45° sec. 1.0 0.75 0.6 0.45 0.4 0.35
90° sec. 1.85 1.4 1.1 0.8 0.7 0.60
180° sec. 3.6 2.8 2.2 1.6 1.4 1.2
Total Indexing Time for 12 Station Turret 45° sec. 1.0 0.75 0.6 0.45 0.4 0.35
90° sec. 2.7 2.1 1.6 1.15 1.0 0.85
180° sec. 5.2 4.1 3.2 2.30 2.0 1.70
Indexing frequency 1/min 8 10 10 10 12 12
Repeat positioning accuracy deg ± 2" ± 2" ± 2" ± 2" ± 2" ± 2"
Indexing accuracy deg ± 6" ± 6" ± 6" ± 6" ± 6" ± 6"
Total Weight (Without Tool Disc) kg. 245 140 91 58 38 22
Loading Capacity Nm
F1 X R 12,000 6,000 3,000 1,500 600 400
F1 X R 16,000 10,000 3,500 1,500 700 350
F1 X R 68,000 4,000 2,000 600 250 160

Tool Turrets and Tool Discs

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