1. COORDINATE MEASURING MACHINE
Zeiss-Prismo

2. CMM PRODUCERS ZEISS Prismo,Spectrum, UMM550, Contura, Vista, Eclipse
MITUTOYO
Legex, Beyond Crsyta
BROWN & SHARPE
Global, Scirocco
WENZEL
MAHR
Zeiss-Vista

3. CMM Producers
Mitutoyo-Legex
Brown & Sharpe

4. WHY CMM High Accuracy Universal and Flexible
Versatile in any Workpiece Dimensions
Reverse Engineering
Reduce Measuring and Setting-up Time
Allow Dimensional and Geometrical Simultaneously
Zeiss - Vista

5. BASIC PRINCIPLE OF MEASUREMENT
Measurements are made in a traversing frame with 3 orthogonal axis (X,Y,Z)
Displacement along the axes are read by length measuring system (Phocosin) and transferred to an electronic control cabinet
Function (Phocosin)
to take measurement point determined by the probe
head & represent it in a Cartesian coordinate system

6. Length-measuring systems (Phocosin)
These systems consist of incremental
encoders using a grating scale as a
measurement standard.

7. DESIGN OF CMM BRIDGE HORIZONTAL ARM GANTRY ARTICULATING ARM
Gantry CMM Inspects Huge Auto Stamping Dies

8. DESIGN OF CMM- Bridge
Moving Bridge architecture schematic

9. DESIGN OF CMM- Bridge
Fixed Bridge architecture schematic

10. DESIGN OF CMM- Gantry Bridge architecture schematic
Zeiss – MTC (Gantry)

11. DESIGN OF CMM- HORIZONTAL ARM
Horizontal arm architecture schematic

12. DESIGN OF CMM- ARTICULATING ARM

13. CMM-UMM550

14. STRUCTURE OF CMM-UMM550 Probe Head Compressed air unit
Min requirement 5 bar
X,Y,Z Measuring System (Phocosin)
CMM Table – Granite
X,Y,Z Motor
Air Bearing - 6µm high air slit

15. Principle of forming the measured value
The travel movements of CMM in all axes are recorded by incremental path measuring systems and store in a counter as position.
When a probing is made the measured value of each axis is formed from the position stored and the remaining deflection of the probe system

16. Principle of forming the measured value
The probe head does not have to be in the zero position during probing, as the deflection in a probe head axis is exactly copied in the length measuring system of the corresponding CMM axis
The probe head output and the CMM length measurement values are added in all 3 measuring axis.
Correlation between probe head output,
length measuring data, and resulting measurement
value ( MC ) :
MC = machine coordinate,
PH = probe head output

17. SOFTWARE SOFTWARE UNIX WINDOWS NT DOS UMESS-UX CALYPSO – SAM-UX-STAT
KUM-UX-2D/3D CURVES
HOLOS-UX-FREEFORM DIGITISING &
MEASURE
GEAR-UX-SPUR & HELICAL
G-BEVEL-UX-BEVEL GEAR
CALYPSO –
GEOMETRY
CC CURVE
HOLOS - NT
DOS

18. MEASURING SOFTWARE UMESS UX Measurement of 2D 2. KUM UX
Measurement of 3D Curves
Digitizing/Scanning
HOLOS
CALYPSO

19. TO ACTIVATE UMESS SOFTWARE FUNCTION
Pull down menu
Pictograms/Icons
Direct Input No.

20. UMESS SOFTWARE FUNCTION

21. Pull Down Menu-PROBE CALIBRATION Master Probe (MODE)
Measuring Probe (CLAMPED/UNCLAMPED)
CLAMPED
One axis only free, depending on the probe direction
UNCLAMPED
All axis are free to move (for 3D profile)

22. Pull Down Menu-COORD
ALIGNMENT
Rotate Space
Rotate Plane
ZERO POINT

23. Pull Down Menu-ELEMENTS
FOR MEASUREMENT OR PROBING
Geometric Element –Need to be defined
SURFACE
LINE
CIRCLE
CONE
CYLINDER
SPHERE
TORUS
ECLIPSE

24. Pull Down Menu-CMM (Reference Points travel- Eg.X30,Y-30,Z-30)
TO TRAVEL AT DEFINED POSITION
(Auto Movement)
TO TRAVEL AT MACHINE ZERO POINT
(Reference Points travel-
Eg.X30,Y-30,Z-30)

25. Pull Down Menu-CNC & EVAL
TO CREATE CNC PROGRAM
EVAL
LINKAGE FUNCTION
FORM
POSITION
DISTANCE
(Cartesian,Polar,Perpendicular)

26. Pull Down Menu-EVAL INTERSECTION 1. Line to Line 2. Line to Circle
4/27/2017
Pull Down Menu-EVAL
INTERSECTION
1. Line to Line
2. Line to Circle
3. Circle to Circle
SYMMETRY ELEMENT
DISTANCE

27. Pull Down Menu-RECORD TO CREATE TEXT Customer Operation Inspector
Product
PRINTER MODE