CP643 系统参考.pdf - 第84页
(3) Necessary Data In order to perform a nozzle center measurement, the following data is required from the nozzle assignment table in the production program. <for MCS> NAT data (nozzle assignment table) [CP6_NAT01…
(2) Main Points
The nozzle center measurement is an operation designed to obtain a compensation value
for the nozzle center of each nozzle. If this measurement is not carried out, the vision
processing of parts that are to be placed will not be exact. It is necessary to carry out
nozzle center measurement in the following cases.
When nozzle center results show that the Head A #1 nozzle is defective (NG)
Placement accuracy maybe affected if production is carried out regardless of this result.
Even if the No.1 nozzle is not used in the program, placement accuracy is still affected.
This is because the Head A #1 nozzle is used as a reference for all center measurement
offset values. Enter production only when an "OK" result is obtained for the Head A #1
nozzle.
After camera Proper data has been remeasured
When the camera Proper data is remeasured the camera resolution and other such values
will change. Nozzle center measurement requires that the camera obtain an image of the
nozzle tip. Thus, if the camera resolution has changed, then the nozzle center must be
remeasured as well.
When using black nozzles
Center measurement is not performed on black nozzles. Black nozzles use the same
holder and nozzle data obtained for the regular nozzles. Therefore, before using a black
nozzle it is necessary for nozzle center measurement to be performed using a regular
nozzle and for the measurement result to be "OK". If an "OK" result is obtained, the
regular nozzle can be replaced with a black nozzle and production can be immediately
started. However, nozzle center measurement should be performed again using regular
nozzles when changing holders or after measuring camera Proper data.
Note: Regular nozzles are nozzles that have the reflective disk attached.
Because center measurement values are managed by the host computer, after performing
nozzle center measurement receive Proper data at the host computer.
Part 2 Chapter 1 Basic Operation
Edition 1.1 2-1-26 CP643E System Reference
(3) Necessary Data
In order to perform a nozzle center measurement, the following data is required from the
nozzle assignment table in the production program.
<for MCS>
NAT data (nozzle assignment table)
[CP6_NAT01]
Nozzle_# Nozzle_size Back_light_size Bend_limit Nozzle_type
...........................................................................................................................
1 00.7 12 0.100 0
2 01.0 12 0.100 0
3 01.3 12 0.200 0
4 03.7 20 0.200 0
5 01.8 12 0.200 0
6 05.0 20 0.200 1
The name of the created NAT data is entered at the item below.
Program
Machine_data
---------------------------------------------------------------------------------------------
82.Nozzle_assignment_table_CP6 23char =CP6_NAT01 (Example)
<For F4G>
1. Start the GUE (Graphical Editor).
2. Open the “Nozzle Data” in the relevant program.
The nozzle size, the reflective disk diameter, the nozzle bend tolerance and the nozzle
type are set for each of the 1 ~ 6 nozzles. It is necessary for the actual nozzles installed in
the holders to be the same size as those specified here.
Caution: Measurement is in mm for everything except "Nozzle_type". For "Nozzle_type", enter 0
for regular nozzles and 1 for black nozzles. Use black nozzles for placing J-lead type
parts such as PLCCs and SOJs which are inspected using frontlight processing. When
"Nozzle_size"or "Back_light_size" are set to 0, that nozzle is skipped on all the holders.
Part 2 Chapter 1 Basic Operation
Edition 1.1 2-1-27 CP643E System Reference
(4) Nozzle Center Measurement Procedure
Nozzle center measurement is automatically carried out by following the command key
operation below.
[SET] – [MANUAL] – [NOZZLE] – [CENTER]
Note: For information concerning the displays of this command key operation refer to Part 3
Chapter 3, "Command Descriptions".
(5) Setting the Maximum Nozzle Bend Tolerance
When placing very small parts, the amount of nozzle bend has a major influence on
picking accuracy and the picking rate. The nozzle bend tolerance value can be set by the
user. If the results of nozzle center measurement yields a value greater than the bend
tolerance value, this allows that particular nozzle to be clearly distinguished as "NG".
The nozzle bend amount is defined in the figure shown below.
The 2 methods for setting the nozzle bend tolerance are explained below.
Making the setting on the machine
To make the nozzle bend tolerance setting on the machine, press the following command
keys. [SET] – [MANUAL] – [NOZZLE] – [CENTER] – [TOLERANCE]
Note: For information concerning the displays of this command key operation refer to Part 3,
Chapter 3, “Command Descriptions".
Making the setting on the Host computer
<For MCS>
Specify at the “Bend_Limit” item in the NAT data.
<For F4G>
Specify at the “Bend Limit” item in the Nozzle Data.
Amount of
allowable bend
Position of nozzle tip
Conceptual nozzle origin
(nozzle center of rotation)
Nozzle tip position after
rotation of 180°
Camera center
CP643S2012
Part 2 Chapter 1 Basic Operation
Edition 1.1 2-1-28 CP643E System Reference