00193407-02 HWWS SIPLACE Machine Accuracy EN.pdf - 第52页
© Siemens AG . . Änderungen vorbehalten SIPLACE Placement Systems When do we need a MACHINE CAPABILITY ANALYSIS (MCA)? ¾ maintenance ¾ relocation ¾ purchase of a new machine ¾ gantry crash ¾ gantry exchange ¾ providing e…
© Siemens AG . . Änderungen vorbehalten
SIPLACE
Placement Systems
The machine capability analysis is frequently determined by the machine manufacturer.
It’s a very important parameter within SMT.
This parameter is used to determine accuracy after a machine set up, for error prevention
after a certain running time and also service can utilize it for performing a machine
analysis.
Cm Controller takes all parameters into account which effect placement accuracy and
provides objective measured values referenced to the machine status.
It’s portable and its robust measuring principle allows it to evaluate the production line
directly in the manufacturing environment.
By determining systematical defects and dispersion, the quality can be improved with
correcting the deviation. An analysis at regular intervals shows any alterations in
placement quality, before the placement rate decreases.
Machine Capability Analysis (MCA)
© Siemens AG . . Änderungen vorbehalten
SIPLACE
Placement Systems
When do we need a MACHINE CAPABILITY ANALYSIS (MCA)?
¾ maintenance
¾ relocation
¾ purchase of a new machine
¾ gantry crash
¾ gantry exchange
¾ providing evidence of placement accuracy
¾ ……..
Machine Capability Analysis (MCA)
© Siemens AG . . Änderungen vorbehalten
SIPLACE
Placement Systems
¾ MFU contains 1 measurement as a minimum.
¾ the number of placed components is depending on the head type.
Standard realization
¾ RV12 C&P head: 144 pieces of components (0201, 0402, 0603, ….. ceramic pads)
¾ RV6 C&P head: 48 pieces glass components (TQFP 92)
¾ P&P head: 48 pieces glass components (TQFP 92)
¾ RV 20 head 144 pieces of components (0201, 0402, 0603, ….. ceramic pads
(can be customized to max. 480 components)
in certain circumstances and on customer tailored measurements, the number of
components and number of measurements can be changed (ask regional SCC for more
info).
The aim is, to receive a protocol for each individual machine and each head type.
This is the proof for placement accuracy within the predetermined limit which is frequently
determined by the machine manufacturer, e.g. Siplace 80S 90µm / 4Sigma).
If required, the customer can use alternative specification values for the measurements.
he values must be comparable (ask regional SCC for more info)
Machine Capability Analysis (MCA)