409-32048
Rev A
31
of 64
7.2.
PCB Support
–
CAP-6T (Drawer Loaded Press)
Support Fixture Plate
(Figure 33)
The press uses a custom fixture specific to the PCB to support the board during the pressing cycle. The
fixture is located on the fixture support plate (a pull-
out “drawer” style support) for ea
se of installation and
removal. This fixture support plate has fixture locating M6 dowel holes as well as M5 x 0.8 threaded holes.
The pull-out support is then slid back into position and automatically secured in place. This is the same
method that can be used to load or remove large PCBs during normal operation.
Figure 33
PCB Support Fixture Specifications
CAUTION
Consideration must be given to any portion of the fixture that is close to the fixture mount plate side rails and the tool rack
areas, to ensure that the fixture height and the Press tool length are adequate to prevent the press head from contacting these
areas during pressing.
—
Height
–
minimum 6 mm [.236 in.], maximum 50.8 mm [2.00 in.]. Flatness and parallelism of top and
bottom surfaces should have a maximum run-out of 0.13 mm [.005 in.].
—
Length -
Up to 914.4 mm [36 in.].
—
Width
–
Up to 762 mm [30 in.].
—
Mounting -
The fixture must precisely locate and orient the PCB relative to the “Origin” (0, 0) position
dowel in the fixture support plate. Any two of the dowel holes provided in the machine table top can be
used.
—
Connector Support area -
The support fixture should be designed with maximum clearance possible
around the pin holes in the PCB. It should generally be a series of slots cut through the width of the
individual “support islands” or drilled holes.
The slots or holes should be as wide as possible, limited
only by the amount of contact area required to prevent marking or stressing the surface of the PCB.
76 [3]
704 [27.7]
Outer Zone
Fixture Thickness Range
44.45-50.4 [1.750-2.00]
PCB Max Size
762 [30] x 914.4 [36]
Inner Zone
Fixture Thickness Range 6-50.4 [.236-2.00]
Inner Zone
Fixture Locating Dowels (Ø6 mm ) 12 Plc
551 [21.7]
53 [2.1]
Machine 0.0
60 [2.362]
30 [1.181]
Fixture Mounting Holes (M5) 36 Plc
36 [1.417]
60 [2.362]
