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Coordinate Measuring Machine Probes from Renishaw

TP20 systems 

The new industry-standard kinematic probe system with module changing

The TP20 probe system is ideal for complex part measurement, where a range of stylus configurations is needed to access all features on the part.

Modules offering a range of trigger forces allow the probe performance to be accurately matched to the measurement in hand. A set of probe extensions is also available, as is a 6-way module.

The TP20 system is easily retrofitted and is compatible with existing touch trigger probe interfaces.

Kinematic probe system with module changing

The TP20 is a 5-way, or 6-way, kinematic touch trigger probe system. The two-piece design, comprising probe body and detachable probe module(s), provides the facility to change stylus configurations either manually or automatically without the need for requalification of the stylus tips and thereby gives significant time savings in inspection routines.

A direct replacement for the industry standard Renishaw TP2 probe, the TP20 probe system brings a range of new benefits to both manual and DCC CMM applications and can easily be retrofitted to existing TP2 installations.

The TP20 can be used on a wide range of Renishaw's manual or motorized probe heads, either by direct mounting using the standard M8 thread or alternatively, by using a PAA# adaptor to connect with an Autojoint.

The system components are:

• TP20 probe body
• TP20 probe module - seven variants allow optimization to suit application
• MCR20 module changing rack - automatic operation
• MSR1 module storage rack - manual operation
• Suitable for interfacing with Renishaw's PI 4-4, PI 7-2 or PI 200

The probe body houses one half of the highly repeatable magnetic kinematic coupling that attach's the probe body and module. The body also contains a magnetic proximity switch to inhibit triggering of the probe during automatic module changing with MCR20.

The probe module houses the kinematic switching touch sensor mechanism, carries the stylus assembly and provides overtravel in +/-X, +/-Y and +Z axes (or +/-Z in the case of TP20 6-way module). The stylus mounting thread accepts styli from the Renishaw M2 range. A range of seven, application specific, probe modules are available and these are identified by colored caps:

• SF - Standard force (black cap) suited to the majority of applications
• LF - Low force (green cap) where application requires low trigger forces, for example rubber seals
• MF - Medium force (gray cap) where higher force than SF is required
• EF - Extended force (brown cap) where large stylus assemblies are to used and also where spurious 'air' triggers due to machine vibration preclude the use of SF or MF modules
• 6W - 6-way (blue cap) for applications requiring measurement in the -Z direction, for example when measuring the width of undercuts
• EM1 STD - 50mm extension module (black cap) for majority of applications
• EM2 STD - 75mm extension module (black cap) for majority of applications

The MCR20 probe module changing rack is designed to securely hold stored modules for rapid automatic changing, and to protect them from airborne contaminants which may be present within the working environment.

The MSR1 module storage rack safely holds up to six modules and eases the operators task where manual changing is performed and this aids productivity.

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