User-Manual-of-NeoDen4-PNP-machine.pdf - 第13页

8 Figure 4 .4 Panelized PCB Origin (SMD1 Coordinate): Single P CB: Only ne ed to ente r “1” in the row and colu mn, so me other useless func tion will turn grey. The “le ft bottom” is func tional, which means th e first …

the placement of the magnetic fixture blocks (supplied) on the table. This is a simple and reliable

system, but the accuracy of a program depends upon the magnetic fixtures being installed to ensure

that the placement of the board is essentially the exact placement that existed at the time the

program was created.

(TIP: Users relying on the magnetic fixtures for several different boards should place fixtures on the

table to ensure that the lower left corner remains in the same place for all boards. This will ensure

that the origin of each board remains constant with respect to the machine coordinates. The

remaining fixtures can then be varied to ensure stable placement of different-size boards.)

Rail Single: This option is the most frequently used on machines equipped with the rail system.

Checking this box will cause the machine to feed a single board (or panelized board) to the

appropriate location and then commence fiducial recognition and component placement.

Rail Multi: This option is used when boards (or panels) longer than the machine table are to be

populated. In this mode, the machine will place components between the first set of fiducials, then

advance the board automatically to place components between the next set of fiducials, and so on.

Eject front: When this box is ticked, the rail system will eject the PCB from the machine toward

the front when the program has completed running.

“Forward” and “Backward”: These buttons manually move the PCB within the rail system.

When setting up a new program, use these buttons to move the PCB to a suitable position for

placement operations. Follow the instructions to complete the program without moving the board

until the program is completed, verified and saved.

“Align”: This button activates the camera. Once a board has been placed in the desired location

using the “Forward” and “Backward” buttons, press “Align”. Move the head so that the crosshairs

are centered on the leading edge of the board. The X and Y coordinates of the aligned location will

be displayed in the “Detect X” and “Detect Y” fields. Though the user can enter values manually to

change the feed location, this should rarely be necessary. See the Figure 4.3.

Figure 4.3

(TIP: When running a program, the board will advance slightly farther than the edge identified with

the “Align” command. This is normal, and the machine will proceed to recognize fiducials to

properly place components.)

“Feed”: Unlike the “Forward” button, “Feed” will automatically advance the board to the position

identified with the “Align” command. It is not necessary to use this feature in normal operations.

However, if a PCB is moved before programming is completed, verified and saved, this feature can

be useful in restoring the board to its proper position.

4.2.2 Setting Panelized PCB & first chip

(manual is the same as automatic download), see the Figure 4.4.

Figure 4.4

Panelized PCB Origin (SMD1 Coordinate):

Single PCB:

Only need to enter “1” in the row and column, some other useless function will

turn grey. The “left bottom” is functional, which means the first PCB. Then you can press “align”

to go to the screen of vision and get the coordinate of first component. See the Figure 4.5.

Figure 4.5

After saving the coordinate, the screen will automatically turn back to “PCB information”. Click

“Create panelized list” to get the information of “Panel 1”. Now we’ve finished setting of first

component of PCB.

Panelized PCB: the sequence is same to single PCB, but please pay some attention to several

points below.

The row and column are determined by the positioning of PCB on working area. The direction

along the rails is the column. Enter data in the row and column.

About the data collection of “left bottom”, “left top” and “right top”, we should take the “left

bottom” as the basic, and then go to set “left top” and “right top”. Once all the data is collected, the

machine can calculate and process the information of panelized PCB. Please refer to the data

collecting method of each position information as following:

The data of “left bottom” is collected according to first component in programming file. Press “align”

find the left bottom panel which is nearest to the feeding position, after saving the data, it will return

to the “PCB information” automatically.

The data of “left top” is collected according to component (its position is same to that on “left

bottom”). Press “align” find the left top panel which is furthest to the feeding position, after saving

the data, it will return to the “PCB information” automatically.

The data of “right top” is collected according to component (its position is same to that on “left

bottom”). Press “align” find the right top panel which is furthest to the feeding position, after saving

the data, it will return to the “PCB information” automatically.

After setup, click “create panelized list”, the data will be generated accordingly in the blank.

Create Panelized List:

This button automatically creates component lists and their coordinates

for each board in a panel (or for a single board) based upon the number of columns and rows entered

for the panel in the Panelized PCB Origin field(s).

Function: This is mainly to determine the first component on single or panelized PCB of manual

programmed or imported file. The principle is to collect and calculate the data of each board’s

relative spacing, in order to achieve the effect of the actual placing.

PCB angle correction: angle deviation of PCB board compares to rails

Skip marked panels: used for find the bad PCB board and skip

4.2.3 PCB fiducial setting

Figure 4.6

Function: After completing setup of the fiducials, with which the machine can locate the position of

PCB and identify the set-up fiducials, so that the next step can be followed, see the Figure 4.6.

Operation method:

Fiducial on single PCB: this mainly applies on single PCB or a whole board that consists of a few

boards (take them as a single board). General we need to set 2 fiducials.

Penalized PCB: this mainly applies on multiple PCB (we need to set fiducials on each PCB)

Manual alignment: if there is no fiducial on PCB, you can use some positioning holes or some other

referential points as subsidies to locate the PCB. See the Figure 4.7.