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FK-9F98-05 CP-643E Training Text for Service Engineers Edition 5.0 Chapter 2. Cam Box Adjustment [ 3 /6] Fuji Machine Mfg. Co., Ltd. Okazaki SMT Equipment Quality Assurance Dept. Technical Support Div. Section No.2 2- 3 …

FK-9F98-05 CP-643E Training Text for Service Engineers

Edition 5.0 Chapter 2. Cam Box Adjustment [2/6]

Fuji Machine Mfg. Co., Ltd. Okazaki

SMT Equipment Quality Assurance Dept.

Technical Support Div. Section No.2

2-2

2.4 B-Cam Scale Angle Check (Timing Reference Point)

1. Set a dial indicator on the cam lever of the waste tape cutter (B-axis). Check that the

maximum diameter (low point) of the cam is set to: 203 degrees.

2. When measuring with the dial gauge, find the center point and move the cam lever

0.01mm as indicated above. If the setting is balanced, the readings should be as

indicated. However, if not, move the angle scale so the readings are within range.

IMPORTANT!

The Cam B axis scale is the reference point for all timing within the Cam Box. Be sure

that this adjustment is carried out correctly. Otherwise, the machine timing will be

adversely affected.

2.5 Cam-axis Synchronization (Using B-axis Scale)

1. Set a dial gauge against the nozzle holder. When the nozzle index stops, the cam angle

should be between 130 and 133 degrees. When starting to move, the cam angle should be

between 253 and 256 degrees.

2. Set a dial indicator on the theta index helical gear. When the theta index stops, the cam

angle should be between 74 and 75 degrees. When starting to move, the cam angle should

be between 299 and 300 degrees.

203

199

207

+ 0.01

Waste Tape Cutter

Figure 2

133

253

(Within 4 degrees on each side)

Starting point

Stopping point

256

130

No movement

range

Figure 3

299

300

No movement

range

(Within 1 degree on each side)

Stopping point

Starting point

Figure 4

FK-9F98-05 CP-643E Training Text for Service Engineers

Edition 5.0 Chapter 2. Cam Box Adjustment [3/6]

Fuji Machine Mfg. Co., Ltd. Okazaki

SMT Equipment Quality Assurance Dept.

Technical Support Div. Section No.2

2-3

3. Set a dial indicator on the FRQ cam lever (Station 12). Make sure that when the cam lever is at

the low point, the cam axis is between 107 and 267 degrees.

4. After checking the above, ensure the A-axis scale matches the B-axis reference scale.

Notes:

1. In all cases above, the maximum difference between the stopping and starting points

should be within +/- 1 degrees.

Example: If the nozzle index stops at 122 degrees it should begin moving at 254 +/-

1degree.

2. The exact timing of movement varies a little from machine to machine. (but still within

tolerance). The main point is to ensure that the stopping and stating points are

balanced.

2.6 Helical Gear Backlash Check

1. Check the backlash of the large helical gear using a dial indicator with shafts A, F, K, and P at

station 11. (180 degrees)

2. The backlash between the two helical gears should be within 0.030 to 0.080mm.

3. The backlash may be adjusted by moving the theta index unit to the right or left.

107

267

269

105

No movement

range

(Within 2 degrees on each side)

Stopping point

Starting point

Figure 5

Theta Index Unit

Figure 6

FK-9F98-05 CP-643E Training Text for Service Engineers

Edition 5.0 Chapter 2. Cam Box Adjustment [4/6]

Fuji Machine Mfg. Co., Ltd. Okazaki

SMT Equipment Quality Assurance Dept.

Technical Support Div. Section No.2

2-4

2.7 3st PQ and 13st PRQ Cylinder Rod Adjustment

1. Release the air and make sure that the cam follower is in contact with both sides of the barrel

cam when the angle is at 257 degrees. If not, adjust the stroke of the cylinder rod end.

2. Set the air regulator in the cam box to 0.4MPa. Tighten the lock nut and mark with a white

marker.

3. Check each cylinder sensor. The sensor must turn ON when the cam angle is between 210 to

212 degrees. (Ensure that the cam follower moves to the right when both PQ and PRQ rotate

90 degrees, and moves to the left when rotated 270 degrees.)

OUT - Y024 PQ ROT, 90 DEG

OUT - Y025 PQ ROT, 270 DEG

IN - X045 PQ ROT, 90 DEG

IN - X044 PQ ROT, 270 DEG

OUT - Y02E PRQ ROT, 90 DEG

OUT - Y02F PRQ ROT, 270 DEG

IN - X051 PRQ ROT, 90 DEG

IN - X050 PRQ ROT, 270 DEG

2.8 Cam Lever Stopper Adjustment

1. Adjust the Cam lever stopper at stations 1, 3, 10, 11, 13

and 18.

2. Turn each station’s solenoid valve ON at zero degrees.

(The cam will be in contact with the cam roller when the

solenoid valve is ON, and apart when the valve is OFF.)

3. Set a dial gauge on the cam lever to measure the

clearance at each valve location.

4. When the solenoid valve is OFF, adjust the air cylinder

stroke so that the dial indicator reads within the ranges

shown below.

Station I/O port Appropriate Value

1 ST

11 ST

OUT - Y020 PICKUP SOL ON

OUT - Y028 PLACE SOL ON

0.05 to 0.07mm

3 ST

10 ST

13 ST

18 ST

1ST feeding

OUT - Y022 PQ ROT SOL ON

OUT - Y030 FQ SOL ON

OUT - Y02C PRQ ROT SOL ON

OUT - Y02A NOZ SOL ON

OUT - Y026 TAPE FEED SOL ON

0.10 to 0.15mm

The solenoid valve must be OFF

except when

making adjustments. [Top= ON] [Bottom = Off]

OFF

Solenoid Valve

Clearance

CAM

Figure 7