User-Manual-NeoDen3V-PNP-machine.pdf - 第39页

34 3.2. Ma intenance 3.2.1. Reinforce Daily Maintenance P&P mac hine is a relativ ely c omplex, high-tech and high-accu racy device that req uires a extre mely clean working environmen t with constan t tempera ture a…

Table 1-1 Nozzle

3.1.3.2. Reference of Nozzle Selection

In order to ensure placement accuracy, please select nozzles according to the shape and size of components.

Table 1-2 Size Comparison of Nozzles

Table 1-3 Size Comparison of Components

Size

CN040

CN065

CN100

CN140

CN220

CN400

CN750

Illustration

Outer

Diameter

0.8mm

1.0mm

1.8mm

2.0mm

3.6mm

5.0mm

9.0mm

Inner

Diameter

0.4mm

0.7mm

1.0mm

1.4mm

2.2mm

4mm

7.5mm

Model

Recommendation（Imperial System）

CN040

0402

CN065

0402，0603 etc

CN100

0805,diode,1206,1210,etc

CN140

1206,1210,1812,2010，SOT23,5050,etc

CN220

SOP series ICs,SOT89,SOT223,SOT252,etc

CN400

ICs from 5 to 12mm

CN750

ICs bigger than 12mm

Component

Size

Component

Size

0603

1.6*0.8

0402

1.0*0.5

1206

3.2*1.6

0805

2.0*1.2

1812

4.5*3.2

1210

3.2*2.5

SMA

4.0*2.5

2010

5.0*2.5

SMC

6.6*5.6

SMB

4.0*3.3

SOT89

4.5*2.5

SOT23

3*1.4

TO252

6.5*6.3

SOT223

6.4*3.7

3.2. Maintenance

3.2.1. Reinforce Daily Maintenance

P&P machine is a relatively complex, high-tech and high-accuracy device that requires a extremely clean working

environment with constant temperature and humidity. Thus, it’s must to be strictly in accordance with regulations

of the equipment to have a routine maintenance.

3.2.2. Requirement for Operator

 Operator should get the basic training which covers all the skills and knowledge needed to safely operate this

type of pick and place machine.

 Operating strictly against equipment’s instruction. DON’T use machine with problems. Stop the machine

once malfunction appears and contact with the after-sales service staff, restart to work after problem solved.

 Operator should be concentrated during the process.

Observation—to observe whether there is abnormal situation. For example peel-box can’t work, plastic tape

is broken etc.

Listening—to hear whether strange sounds appears during operation, such as noise of placement head, sound

of loss component, strange noise of conveyor etc.

Handwork—solve small problems in time, such as install feeder, correction placement position etc. If

anything wrong with the main machine body or circuit, please consult after-sales staff.

3.2.3. Formulate Measures to Reduce/ Avoid Mistake

The most easily appeared problem during mounting are components placement incorrectly and placement

misaligned. Refer to below measures for precaution.

1) It needs to check whether the components’ package is matched with related feeder. If not, please correct

them.

2) As for tape reel feeder, after one is ran out, operator must check whether another newly changed tape reel is

correct or not.

3) After import the SMD file or edit chip list manually, please recheck each component’s No., nozzle’s rotation

angle and placement position to ensure they’re correct.

4) Operator must check the first finished PCB of each file. If any problem happens, please find solutions such as

revise program to solve it.

5) Check placement position’s alignment, component loss problem during regular work from time to time. Find

the reason in time and come up with solutions.

6) Detect position before soldering(manually or using AOI)

7) To sum up, P&P machine’s running speed and placement accuracy still has limitations. Human plays an

important role in running well of the machine. So it’s necessary to comply with effective measures to ensure

machine’s well working, high placement quality and efficiency.

3.2.4. Maintenance of Device

Routine check and maintenance policy should be established.

3.2.4.1. Check Below Points Daily

Inspection Items

Please check below

before turn on the

machine

1) Temperature and humidity: temperature range from 20℃ to 26℃, humidity

range from 45% to 70％.

2) No stuff on dual rails or the whole placement area.

3) No stuff on the fix camera lens. Make it clean and tidy.

4) No stuff around the head nozzles.

5) Check if nozzle is dirty or out of shape. Clean it or change it into a new one.

6) No stuff on the feeders, and make sure they’re well installed.

7) Check if the air hose is well connected with the machine.

Please check below

after turn on the

machine

1) Check if the monitor’s screen could display well after system starting working.

2) Check if emergency switch could work well.

3) Check if the placement head could return to the original place correctly.

4) Check if noise happens when placement head moving.

5) Check if negative pressure could under a normal range.

6) Check the PCB’s transmission on dual rails to see if the sensor still works

well.

7) Check the positioning column and holes are correct and fastened.

3.2.4.2. Check Below Points Monthly

Checking Points

Checking List

X、Y axis

Make sure no abnormal noise when placement head move.

X、Y motor

Make sure motors working well, no abnormal heating appearance.

Nozzle

Check if nozzles stretch well with no bending and check if the suction surface is

horizontal.

Air hose

Check the air hose and connector, make sure hose is fine without broken, abrasion or

air-leak etc.

Step Motor

Make sure no dust on the step motor, synchronous belt and synchronous wheel; the Z

axis motor can rotate and fluctuate without obstacles.

Z axis Motor

Check if the placement head could move up and down smoothly. Push up the nozzle by

hand to see whether it can move smoothly. Move the placement head up and down in

the proper range.

Negative pressure

check all nozzles’ negative pressure.If abnormal,please clean nozzles.

Positive pressure

check whether they’re normal.

Optical axis

please check whether it is covered dusk. Please keep it clean and lubricated.

Operation button

check each button to make sure they are well-worked

Connector

check if well-connected of the air connector and air hose.