CP6S-PAM操作手册.pdf - 第13页

1. Using P AM Purpose PAM (Placing Accuracy Measurement) is a function for measuring the part placing accuracy. Note: Use of the machine for long periods without proper maintenance can reduce the original placing accurac…

Make sure the cam is at its origin (0 deg.)

● Exercise extreme caution when working on the machine if the cam

is not at its origin (0 deg.). (The cam may not stop at its origin (0

deg.) in an emergency stop.) Recoil of the cam axis can endanger

the operator.

● If the cam is not at its origin (0 deg.), use a crank to rotate the cam

shaft until the indicator points to 0 degrees.

Do not stare into the laser beam.

● The CP-643E / CP-643ME is equipped with laser type

fiber sensors (class 2). Exercise extreme caution

when working in areas where there is a risk of eye

damage from the laser beams.

Safety Guidelines

Version 3.0 8 CP-6 PAM Operation

WARNING

1. Using PAM

Purpose

PAM (Placing Accuracy Measurement) is a function for measuring the part placing

accuracy.

Note: Use of the machine for long periods without proper maintenance can reduce the original

placing accuracy. PAM can be used at such times to restore the placing accuracy to

original levels.

PAM Kit

Please verify the contents of the PAM shipping container.

Overview

When PAM is started, a correction value for the station 11 (part placing station) proper

data is calculated, and the ST11 proper data is re-entered and saved in accordance with

this correction value. This data is also transmitted back to the host computer (F4G or

MCS).

This ST11 proper data acts to correct mechanical positional error (due to working and

mounting error amounts), resulting in a uniform correction. X and Y direction correction

values are entered for each nozzle. As the system consists of 20 heads with 6 nozzles per

head, this results in a total of 240 proper data input items.

Item Name Quantity Model

Dummy parts for PAM 1 reel MPJ2220

Board for PAM 1 board K2096E(CP/IP/QP96-001)

Program FD disk for PAM 1 disk

Card ROM for PAM 1 card

Double-sided tape 1 roll Scotch Tape 666 25.4

C6PM1001

1. Using PAM

Version 3.0 1-1 CP-6 Series PAM Operation

The Need for Station 11 Proper Data Calibrations

Corrections in Station 11 Proper data are required to counter the mechanical deviation of

each nozzle at station 11.

Although it is possible to measure the nozzle centers of station 6 with the parts camera, it

is impossible to measure the centers at station 11. The placement position of parts will be

inaccurate without compensating for these mechanical deviations because, it is

impossible for each nozzle to stop at the exact same point.

As shown in this illustration, when a nozzle cannot move in a completely vertical

direction due to mechanical errors, the center of a part, as seen by the vision processing

system, and the actual center may not correlate.

The measurement performed by PAM involves a process in which dummy chips are

actually placed on a mark reference board, with the chip placement accuracy being

checked by a mark camera. Each nozzle is rotated to 0 degrees, 90 degrees, 180 degrees,

and 270 degrees and the vision processing data for the placed parts then undergoes

statistical processing to provide an accurate measurement of the mechanical error

amount.

Nozzle

Decending

trajectory

Board

Part center detected

by Vision Processing

Part center

at placement

Part

C6PM1002

1. Using PAM

Version 3.0 1-2 CP-6 Series PAM Operation