2. Product-description
Ortlieb Präzisionssysteme GmbH & Co. KG • Jurastr.11 • 73119 Zell unter Aichelberg • Germany
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e-mail: [email protected] • www.ortlieb.net
2
Product-description
The Ortlieb Tool-Gripper distinguishes by a simple outline in the spindle and compact dimensions.
The rubber-bonded clamping segments are designed for maximum clamping force and high
revolutions, especially for HSC-machining and are rated for a life time of 2 mio. load alternations.
The large central cooling feed provides a secure cooling when using coolant lubricant or MQL
(minimal quantity lubrication).
Pos. Description
1
Segments
2
Draw-bolt
3
Pin
4
Ring spring
5
Disk springs
6
Drawbar
7
Tool
8
Spindle
Function:
Milling spindles on machine tools are usually fitted with conventional spring loaded tool clamping
systems. The tool-gripper operates on pulling force.
The six rubber-bonded clamping segments were spread equally by the taper on the draw-bolt and
draw-in the tool-holder by the 30°-shoulder into the taper of the machine spindle. During clamping,
25% of the clamping force is dispensed upon the taper, 75% upon the front surface. Thus, also
with high machining forces it is granted, that the tool never lifts from the front surface.
To change the tool, the disk springs were compressed, usually by a hydraulic cylinder. The draw-
bolt is pushed by the drawbar to the front, releases the clamping segments and pushes the tool by
force out of the spindle taper. The ring spring provides a closing of the clamping segments which
release the tool for changing.
