1OM-1625-004_w.pdf - 第206页

1OM-1603 Glos-1 Glossary 0908-002 Glossary X/Y Beam Section This section is equipped with a mechanism by which the placement heads can be shifted. By shifting the placement heads in the X and Y directions, the vacuum noz…

1OM-1603

0908-002 Glos-B

1OM-1603

Glos-1

Glossary

0908-002

Glossary

X/Y Beam Section

This section is equipped with a mechanism by which the placement heads

can be shifted.

By shifting the placement

heads in the X and Y directions, the vacuum

nozzles can be attached or detached and some components can be picked and

placed on the PCB.

Automatic Recovery Function

When this function is

used and a component shortage error is detected, the

machine is not stopped and a message is issued as machine information,

prompting the operator to replenish components.

The machine continues to

place the components other than the missing ones

(component-shortage detected ones). After it has placed all components

(excludingthemissingones),itstopsrunningwithoutdischargingthePCB.

When component shortage errors, etc., are detected in different feeders at a

short interval, the loss time can be reduced because the components in short

can be replenished collectively.

Warm Start

When a normal restart

operation is performed after the continuous operation

has become impossible during component placement, the PCB in the middle

of process is discharged to the output machine, producing a defective PCB.

In this case, the reset operations must be performed through this "Warm

Start" procedure.

Cover Section

This mechanism works to

protect the operator from any danger.

The machine is provided

with covers (located over the beams), safety covers

(located around the frame), and storage covers (located on the lower area of

both conveyor ends). The covers and safety covers are prepared to avoid any

danger (to keep an object including part of body and cloths out of the moving

mechanisms inside the machine) during automatic operation.

Inside the storage covers, some electrical parts are stored.

Camera Offset

This offset data is

used to adjust the deviations based on the design

dimensions between the positioning reference point (coordinates X

(horizontal), Y (vertical) and Z (theta)) and the center of the camera.

Angle Z is an

angle in the PCB positioning and camera coordinates systems.

1OM-1603

Glos-2

Glossary

0908-002

PCB Positioning Section

This section is provided

with a mechanism by which the PCB sent from the

PCB input section is positioned.

PEC Recognition Function

Innormalcases,two

ducialmarksareputonaPCBandthecoordinatedata

and positional deviations are detected by the PEC recognition camera.

This function automatically corrects

placement positions of components

according to the recognized positional deviations.

There are three kinds of PEC recognition functions - "Global", "Image",

and "Local".The global recognition function covers all positional deviations

over one PCB and is used to correct them. The image recognition function

is used to correct positional deviations for each individual patterns. The

local recognition function is used to correct positional deviations for each

component placement point.

PEC Recognition Section

Each beam is equipped

with a PEC recognition camera and a light source for

illumination, making a pair with the placement head.

ThePECrecognitioncamera

isusedtodetecttheducialmarksonaPCB

andtheamountofthepositionaldeviationfromtheducialmarkcoordinate

data is calculated to automatically correct the position of a component to be

placed.

PCB Transfer Conveyor Section

The PCB transfer mechanism

works to transfer the PCB (sent from the input

machine) to the area just before the PCB positioning section and carries out

the component-placed PCB to the output machine.

Pickup Position Teaching Function

This function is used

to correct the component pickup position through

manual alignment operation.

The pickup rate might

be improved by this function.

Automatic Feeder Axis Adjustment Function

When a component is

picked up by the vacuum nozzle and shifted from the

correct pick-up position, this function uses the recognition system to correct

the deviations for accurate component placement.

By feeding the recognized

amount of correction back to the pickup position,

thepickuppositioncanalsobebroughtclosetothespeciedone.

Optimization of Pickup and Placement Order

As for each placement

point in the pattern program, the pickup and

placement order can be determined.