CP7 Series Level3 Tutorial Manual.pdf - 第119页

Affected Calibration data: Mark Read Position X → MC0MPX Mark Read Position Y → MC0MPY Mark Camera Pixel Size X → MC0MCPX Mark Camera Pixel Size Y → MC0MCPY Mark Camera Rotation → MC0MCR Caution Ensure that a back-up of …

7.1 The Mark Camera

This CCD camera is mounted on the machine for reading fiducial and block skip

marks. The machine processes fiducial marks in order to find the actual position

of the board inside the machine and so place parts accurately. Block skip marks

are processed in order to ascertain whether a particular block(s) are to be skipped

or not (refer to the figure below).

Typical problems arising from an incorrectly calibrated position include mark read

errors, and uniformly skewed parts.

Recalibration of the fiducial camera is needed to correct the above mentioned

problems. Some examples of possible reasons for calibration are:

- Poorly focused camera

- After replacing camera

- After any damage to the camera resulting in camera skew

Required Tools: 1 Set of Allen Wrenches

Required Jig: Pin holder jig

Fiducial jig plate

CP7T37001

Chapter 7 7.1 The Mark Camera

Edition 2.0 7-1 CP-7-series Level 3 Tutorial

Affected Calibration data: Mark Read Position X → MC0MPX

Mark Read Position Y → MC0MPY

Mark Camera Pixel Size X → MC0MCPX

Mark Camera Pixel Size Y → MC0MCPY

Mark Camera Rotation → MC0MCR

Caution

Ensure that a back-up of calibration data is taken prior to adjusting the

camera.

CN003

Pin holder jig (Z9426DCPJ4451)

jig plate AJPJ0062

100 mm

XR - 49.998

XL - 50.000

Y - 50.001

CP7T37002

CP-732E Only

Chapter 7 7.1 The Mark Camera

Edition 2.0 7-2 CP-7-series Level 3 Tutorial

7.1.1 Mark Camera Removal

Procedure:

1. With the machine powered OFF, remove the mark camera by

disconnecting the video cable from the power supply unit (refer to the

figure below).

2. Remove the four (4) CCD module mounting bolts and physically remove

the camera CCD module from the machine (refer to the figure below).

Note: In the case of the CP-742E(ME), it is also necesary to remove the 3 bolts holding the

aluminium plate over the CCD Module mounting bolts.

3. Unscrew the aluminum housing to gain access to the lens unit.

Note: The lens unit and CCD camera have been pre-assembled. Therefore, it is not necessary to

adjust the half mirror.

CCD Module

Mounting Bolts

CP7T37004

CP7T37003

Chapter 7 7.1 The Mark Camera

Edition 2.0 7-3 CP-7-series Level 3 Tutorial