FX-3RA_SPE_EN.pdf - 第21页
- 17 - The recognition marks shall all comply with EIAJ ET - 7302 “Recognit ion marks for on - surface placed P W Bs.” Recognition mark dimensions and tolerance The outside dimensions shall rang e from 0.5 m m up to 3.0m…
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Basic quality of recognition marks
- Copper not coated or coated
- It needs to have a clear contrast between the recognition mark surface and the print
wiring quality.
- It needs to have neither oxidation nor quality deterioration of the recognition marks.
Coating the recognition marks
The recognition mark surfaces shall all be coated as follows:
- Transparent antioxidant coating - Nickel plating
- Tin plating - Gold plating
- Hot-air levelling solder coating
Mark shapes to be recognized
- The standard marks represent the thirteen (13) forms as shown in the following block,
“forms of recognition marks.”
- For any mark other than those shown in the said block, customers shall make templates
to allow for recognition through a pattern matching.
Note 1: Three types of reference marks or up to six types of area marks/component
positioning marks can be supported.
Note 2: Within a field of vision, there should be no similar form pattern other than the
subjected form patterns.
- For regular triangles, checker patterns and users’ templates, the 90°up-side-down
marks can also be recognized.
Circle
Square
Diamond
Regular
triangle
Up-side
-down
triangle
Checker
pattern
Cross
Inside-blank
circle
Inside-blank
square
Inside-blank
diamond
Inside-blank
up-side-down
triangle
Checker
pattern
Inside-blank
Regular
triangle
Component placement
area positioning marks
Component positioning
marks
Placement group
PWB reference marks
Figure PWB reference marks and Component positioning marks
Figure Mark shapes to be recognized
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The recognition marks shall all comply with EIAJ ET-7302 “Recognition marks for on-surface
placed PWBs.”
Recognition mark dimensions and tolerance
The outside dimensions shall range from 0.5 mm up to 3.0mm, whose tolerance, less than
10%.
For all the inside-blank forms, the edging line width shall be more than 0.2 mm.
Clearance for a recognition mark
It is required that there shall be around each recognition mark, a space having nothing of
such other marks as conductor pattern, solder resist, marking and the like, and it is
recommended that this space dimensions be a larger square than the mark by 0.5 mm or
more from the outer circumference of the recognition marks.
0.5
to 3.0mm
0.5 to 3.0mm
0.2 mm or more
Clearance area
Recognition mark
0.5 mm or more
0.5 mm or more
0.5 mm or more
0.5 mm or more
Figure Clearance for a recognition mark
Figure Recognition mark dimensions and tolerance
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5. STANDARD FUNCTIONS AND OPTIONAL
FUNCTIONS
5-1. Standard Functions
5-1-1 Height Measurement System (HMS)
When preparing the pick data, the component pick position and height shall be measured via
the laser sensors. For a component whose pick-up plane is transparent like glass (LED, etc.),
a component like a mirror that reflects light almost 100%, a component that is blue, and a
component that is less than 0603, this function is not applicable. The function can also be
used as a teaching spot.
5-1-2 Vacuum pump
This pump allows the machine to reduce air consumption of the compressor, and improve
the stability of air supply when it picks up a component.
5-1-3 Feeder Float Detecting Sensor
This function is provided to prevent mechanical troubles caused by improper installation of
tape or stick feeders. When this sensor detects an improperly-installed feeder, it stops the
X-Y axes, and warns an operator.
5-2. Option
5-2-1 Bad Mark Reader (BMR, Factory-Set Option)
A bad mark (bad circuit) is given to each circuit on a multi-circuit PWB to prevent any
component from being placed on the circuit.
The minimum diameter of a bad mark is φ2.5 mm or more and the color of a mark should be
highly contrasted with that of a board. The brightness can be switched when the difference
between the color of a board and the amount of light reflected from the mark is enough.
When you use an optional bad mark reader, the time for recognizing one bad mark can be
shortened by approximately 0.1 seconds with comparing with the time taken with the
standard OCC.
バ ッ ド マ ー ク
グ ロ ー バ ル バ ッ ド マ ー ク
基 板
回 路
Board
Circuits
Bad marks