Renishaw SP25M Bedienungsanleitung Seite 138

SP25M user's guide
http://www.renishaw.com
The MCR20 module change rack
The MCR20 probe module changing rack kit
NOTE: Renishaw supplies eight types of MCR20 probe module changing rack kit, each kit providing a different combination of probe
modules. See 'The MCR20 module change
The MCR20 probe module changing rack kit comprises the following primary components:
One Renishaw MCR20 probe module changing rack
One Renishaw SCR200 mounting kit
One location piece
One Renishaw PS2R stylus
Two Renishaw TP20 probe modules (probe module combination supplied will depend on part number of kit)
The MCR20 probe module changing rack, which can be easily mounted onto a CMM using the Renishaw SCR200 mounting kit and
location piece, is designed to securely hold stored probe modules for automatic changing, and to protect these stored probe modules from
airborne contaminants that may be present within the working environment. Only seven datum points are needed to set the MCR20 rack
alignment and probe module changing co-ordinates.
When using the rack, the inhibit version of the TP20 probe must be used. By generating a magnetic field about the front of each docking
port lid, the MCR20 effectively 'closes' the probe's inhibit switch during a probe module changing cycle. Rack function is completely passive
and no electrical input is required.
During automatic changing of probe modules, limited crash protection is provided by hinged overtravel mechanisms incorporated within
both the base and the docking port assembly of the MCR20. Provided any collision occurs in the direction of overtravel, the hinged
overtravel mechanisms can be manually reset and normally it should not be necessary to re-datum the rack.
MCR20 probe module changing rack kits are available with the following combinations of probe modules and may be ordered from your
supplier:
Issued 10 2015
rack' for the range of kits offered.
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