Turning Between Centres; Turning Short Tapers With The Top Slide - Optimum optiturn TH 3610 Betriebsanleitung

4.19.4 Turning between centres

CAUTION!
When clamping workpieces between the tips of the lathe while using a lathe dog, the
existing lathe chuck protection must be replaced with a circular lathe chuck protection.
Workpieces that require a high concentricity precision are machined between the centres. For
holding purposes, a centre hole is drilled into both plain machined faces of the workpiece.
Lathe dog
Chuck flange
Driving bolt
The lathe dog is clamped onto the workpiece. The driving bolt, which is screwed into the flange
for the lathe chuck, transmits the torque to the lathe dog.
The fixed centre glides into the centre hole of the workpiece on the spindle nose side. The fol-
low centre glides into the centre hole of the workpiece at the tailstock side.

4.19.5 Turning short tapers with the top slide

Short tapers are turned manually with the top
slide. Swivel the top slide to the required
angle. The infeed is achieved with the cross
slide.

Loosen the two clamping screws in the
front and in the rear of the top slide.

Swivel the top slide.

The required setting of the angular
degree may be read from the scale.

Clamp the top slide again.
Version 1.0.5 - 2021-03-23
Fixed
0
Centre 60
Img.4-20: Illustration: Turning between centres
Translation of original instruction
Workpiece
Follow
Centering
point
0
60
Workpiece
Feed
Img.4-21: Illustration: Turning tapers
TH3610 | TH3610D EN
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