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Chapter 1 Automatic Operation Part 2 1.1.2 Nozzle Reflective Disk Diameter Data (Program) The diameter of each nozzle’s reflective disk is input into pr ogram data to facilitate production. [Program] Machine_data 42. S_b…

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Chapter 1 Automatic OperationPart 2
1. Automatic Operation
This chapter explains the automatic operation and step operation of the
FCP IV-3.
1.1 Automatic Nozzle Selection
The FCP IV-3 features a function to automatically select the nozzle which
best suits a given part. The user defines the diameters of the nozzles and
nozzle background disks used by the program ([Program] Machine_data)
as well as the maximum nozzle diameter and minimum background disk
size permitted in placing the part. If a part must be placed by a nozzle of
a specific diameter, this is also input.
Based on this data, the FCP IV-3 judges which nozzle should be used to
place the part.
Data is input in two places: in the program and in the part’s Part Data file.
1.1.1 Program Nozzle Diameters
The FCP IV-3 holds three nozzle sizes per holder: S, M, and L. The
nozzle diameter assigned to each size could vary according to the
user’s application and thus may differ among production
programs. Accordingly, each production program defines the
diameter for each nozzle size in the following fields in
“Prog_information”.
[Program] Machine_data
38. S_nozzle_size:
39. M_nozzle_size:
40. L_nozzle_size:
2 – 1Version 2.0
FCP IV-3 Operation
Chapter 1 Automatic OperationPart 2
1.1.2 Nozzle Reflective Disk Diameter Data (Program)
The diameter of each nozzle’s reflective disk is input into program
data to facilitate production.
[Program] Machine_data
42. S_back_light_size: Input the diameter of the reflective disk
for the S nozzle in 1 mm increments.
Default is 12 mm.
43. M_back_light_size: Input the diameter of the reflective disk
for the M nozzle in 1 mm increments.
Default is 12 mm.
44. L_back_light_size: Input the diameter of the reflective disk
for the L nozzle in 1 mm increments.
Default is 25 mm.
1.1.3 Part Data Nozzle Diameters
There are two fields in Part Data which are used in the automatic
selection routine of the FCP IV-3. They appear under
Carrying_data, as follows.
[Part data] Carrying_data
17. Nozzle_size_max. :
19. Nozzle_size_CP4 :
Since each part has its own Part Data file, data input here is specific
to the part that the file describes. Nozzle_size_max. defines the
maximum diameter of the nozzle which can be used in placing the
part. This is referenced by the FCP IV-3 during automatic nozzle
selection.
Nozzle_size_CP4 defines the specific nozzle diameter when a
specific nozzle size should be used. In this case, the data in
Nozzle_size_max. is not used; the FCP IV-3 is forced to use the
specified nozzle diameter to place the part. Do not input
Nozzle_size_CP4 if automatic selection of the nozzle is desired.
2 – 2Version 2.0
FCP IV-3 Operation
Chapter 1 Automatic OperationPart 2
1.1.4 Minimum Disk Diameter (Part Data)
This data item is where the minimum diameter of the reflective
disk is specified.
[Part Data] Carrying_data
16. Back_light_min: Input the smallest disk diameter to be
handled by vision processing in 1 mm
increments.
1.1.5 Automatic Selection Method
The nozzle actually used in placing a part is automatically selected
by the FCP IV-3 if no nozzle diameter has been specified in
Nozzle_size_CP4. The FCP IV-3 checks the maximum nozzle
diameter permitted in the Part Data file, then chooses the nozzle
defined Machine_data in the program that is closest to the
maximum size, but not greater than it. Furthermore a check is
made to determine whether the background disk of the nozzle will
allow the part to be vision processed.
For example, if data is specified as shown below, the maximum
nozzle permitted for part “RECT3216120” is 1.3 mm in diameter.
The closest nozzle diameter set in the program without exceeding it
is the M nozzle at 1.0 mm. Therefore, this nozzle would be chosen
to place this part.
Program
Machine_data
38. S_nozzle_size : 0.7
39. M_nozzle_size : 1.0
40. L_nozzle_size : 2.5
42. S_back_light_size:12
43. M_back_light_size:12
44. S_back_light_size:25
Device_data
D1 RECT3216120
D2 RECT2125C
Part data
D1 RECT3216120
16. Back_light_min :12
17. Nozzle_size_max : 1.3
19. Nozzle_size_CP4 : 0
2 – 3Version 2.0
FCP IV-3 Operation