4OM-1431-006_w.pdf - 第255页
5-B 0709-001
•
Classication of Failure Symptoms and Helpful Hints on
Countermeasures against Failure
•
Troubleshooting on Pickup Errors
•
Troubleshooting on Component Placement Errors
5-A
Chapter 5
Troubleshooting on Component Picks and Placement
This chapter describes the scope of troubleshooting on
component picks and placement.
0709-001
5-B0709-001
5-10709-001
1. ClassicationofFailureSymptomsandHelpful
Hints on Countermeasures against Failure
1.1 ClassicationofFailureSymptoms
The machine processes can be classied into Processes A, B, C, D, and E as
shown below.
Reference
Refer to "3. Surface Mounting Mechanism" in "Chapter 1 (Vol. 1: Guide)"
for the outline of actions.
Process A : The placement head moves to the feeder base and picks up
a component.
Process B : The head moves to the area where the component
recognition camera is installed and a component recognition
process is taken there.
Process C : The placement angle is corrected while the head is moving
to the PCB positioning section.
Process D : The component is placed on the PCB.
Process E : The component-placed PCB is discharged.
1
2
3
Feeder Base Section
Component Recognition Camera
PCB Positioning Section
Process A
Process B
Process C
Process D
Process E
Fig.4E1
Based on these processes, failures can be divided roughly into the following
two types.
Failure before Component Placement : This type of failure occurs
mainly in Pro
cesses A, B, and C.
Failure after Component Placement : This type of failure occurs
mainly at Processes D and E.
1.ClassicationofFailureSymptomsandHelpfulHintsonCountermeasuresagainstFailure