DEK高级培训资料.pdf - 第123页
STENCIL Alignment theory Issue 2: July 2007 BOA RD STENCIL STENCIL BOA RD BOA RD
Screen Alignment Module
•
The screen alignment module consists of the
following sub-assemblies:
– 3x Screen Actuators (Xf, Xr, Y)
Issue 2: July 2007
– 2 x Chase Clamps
– 4 x Chase roller counter plates
– Chase clamp air regulator
– Dual Stepper drive cards (X1 & X3)
Replaced as complete assembly
STENCIL
Alignment theory
Issue 2: July 2007
BOARD
STENCIL
STENCIL
BOARD
BOARD
Screen Image
Screen Image
Xr
Xr
Y
Y
Alignment theory
Issue 2: July 2007
Screen Image
Board
Board
Screen Image
Xf
Xf
Limits of travel: Xf,Xr = +/- 9 approx., Y = +/- 9mm approx.
Offsets: Y = +/- 1mm, X = +/- 1mm, theta +/- 1000aSec