M20_Ope_E - 第247页

Chapter 5 Libraries 5-97 ⑥ Perform three-point teach for th e points illustrated below: Y=3 X=4 Ori g inal p icku p p oint Three teach points are graphically suggested on the Teach dialo g box. While the main teach camer…

Chapter 5 Libraries

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Package Angle: Packaging angle based on the image scanning angle (when viewed

from the machine front). Available settings are 90, 180, -90, and 0.

Counter-clockwise rotation when viewed from above is the positive

angle. Used to link the same components with different packaging

angle.

To link the component A and B shown above, register [Package

Angle] of B based on [Package Angle] of A. When [Package Angle]

of A is “0”, enter “90” for B. In the pickup data editor, assign A and

B the same component code to link them. With this procedure, you

need not vary the placement angle setting between A and B. The

placement angle setting is based on the image scanning angle.

Error Skip Not used.

Postpone Retry Disabled = Retry disabled, Enabled = Retry enabled. Use of this

function allows retries to be performed collectively at the end of the

program, instead of being performed separately.

However, retries occurring during “postpone retry” will be handled

as normal retries.

To use this function, “Postpone Retry” must be enabled (User

Parameter > Functions(2) > Postpone Retry Step Tray Component

Only).

 Setting Tray Library Data (1)

Applies to trays positioned against the positioning blocks of the pallet (in use of a JEDEC tray,

the front positioning blocks).

First, enter [Count X] and [Count Y] settings manually. Then perform teach entry for other

settings (Tool>Teach>TrayTeach).

Action:

Type in [Count X] and [Count Y] settings so they correspond to the location of the third teach

point. In the below example: [Count X]=4, [Count Y]=3.

① Set the tray to a pallet. Set the pallet to the tray feeder. (See Chapter 7.)

② In the tray library editor, click the line to edit. Then click Tool>Teach to open the Teach

dialog box.

③ In [Tray Teach] tab, under [Unit], select a tray feeder. Under [Shuttle Position], select a

pallet stop position. When [Unit] is "MXR", select "Front". When [Unit] is “MX-RT1”,

select “Front” or “Rear” (either will do).

The steps ④ through ⑤ stated below apply only to MX-20, and MXR. As for MX-ST2,

manually set the pallet to the front or rear pickup position.

④ Under [Pallet No.], enter the pallet number.

⑤ Under [Mode], click <Out> button. Then click <Move Pallet> button. The specified pallet

enters the mounter.

When choosing <Move Pallet> button in the Teach dialog box, do not stick head, hands,

or other parts of the body inside the mounter. Serious injury may result. Also make

sure non-operators are a safe distance from the mounter.

Warning

Chapter 5 Libraries

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⑥ Perform three-point teach for the points illustrated below:

Y=3

X=4

Ori

inal

icku

oint

Three teach points are graphically

suggested on the Teach dialog

box.

While the main teach camera cannot cover the entire tray, it can handle

three-point teach. Within the camera work range, teach the farthest point from

the original pickup point as the third teach point. The third teach point must

correspond to the Count X/Y settings you have entered.

Then the system calculates the original pickup coordinates (Original X/Y) and the component

pitch (Pitch X/Y). The result is displayed in the corresponding fields.

After performing the three-point teach, correct the Count X/Y settings to the

original settings. Otherwise, the system calculates the component count

according to the Count X/Y settings used for the three-point teach, resulting in

component mis-counting.

See the following Caution 1 before operating step

⑧

⑬．

⑦ Teach the component height. This teaching is for Z height of the component, therefore the

nozzle needs to be set on a head at first.(recommended nozzle type : No.05 or No.06;

without a rubber.)

⑧ Select “XY axes” in [Axis], and select the head referred to in the previous step in [Head].

Select “1” for both [X Pos.] and [Y Pos.], then click <Trace> to move the head to the

original pickup point.

⑨ Place a sheet of paper with thickness of ordinary photo-copy paper over the component.

Under [Axis], enter “Z axis”. Lower the nozzle slowly toward the component. If necessary,

slow down the axis speed using [Axis Speed] setting. When the nozzle reached the paper,

try to pull the paper to see the nozzle height is proper. When the paper is lightly caught

between the nozzle and component, the nozzle height is best adjusted.

⑩ Subtract 0.1mm from the Z height obtained in the previous step. This means the nozzle

pushes down the component for 0.1mm.Type in the value to TrayLibrary > [Component

Height] field.

⑪ Close the Teach dialog box by clicking <X> button.

⑫ Click File>Save to save the data. Close the tray library editor by clicking <X> button.

The procedures of manual teaching mentioned in steps ⑧ through ⑬ have the risk of collision

of the nozzle against the component. Therefore it is recommended to measure the component

thickness with a caliper and enter the thickness in the Component Height manually.

Caution 1

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z Automatic-component-height teaching by vacuum pressure

Here explains the automatic teaching method in addition to the manual teaching to determine

the component height as mentioned steps ⑧ through ⑬ above. By the automatic teaching, the

mounter checks the vacuum and determines the component height where the vacuum

increases.

Action:

① Attach a nozzle type 05 to the head No. specified in [Head].

Note: Be sure to use a nozzle type 05 which does not have a rubber ring.

② Select “XY axes” in [Axis], and select the head No. which the nozzle type 05 is attached in

[Head]. Select “1” for both [X Pos.] and [Y Pos.], then click the <Trace> to move the head

to the original pickup point.

③ Select “Z-axis” in [Axis], and select the head No. which the nozzle type 05 is attached in

[Head].

Move down the nozzle slowly toward the component surface by confirming visually.

Stop the nozzle when it gets closer to a few millimeters to the component surface.

Note: At this time just close the nozzle to the component surface. Do not let the nozzle touch or hit

the component.

④ Enter this height of step ③ in [Start Z].

⑤ Click the <Surface Teach> button.

The following dialog box appears. Press the <OK> button.

Then the nozzle automatically starts moving down slowly from the height of the [Start Z]

with vacuum is on.

It shows the head [Vacuum].

Click the <Surface Teach> button.

Enter the height in [Start Z].