MAN00000772_SI-G200BB_SVCPDFA.pdf - 第288页

Adjustment HLGB-10401-01 Matching of X Axis Z-Phase SHEET 2/3 4 S top the X axis at the boun dary position where the ORG sensor LED in extingu ished condition light s up. 1. Manually move th e X axis in right direction t…

Adjustment

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Matching of X Axis Z-Phase

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Matching of X Axis Z-Phase

This section describes a procedure to adjust a position

of the Z-Phase so that the motor stops at a position

(Z-Phase setting position) where the ORG sensor

detects the dog, then moves to the X-CCW sensor side

(left side) by 5 ±2 mm when origin return is performed,

by taking X axis on the front head side as an example.

Also match the Z-Phase for the X axis of the rear head

side by the same procedure.

[Procedure]

1 Perform origin position return of the unit.

1. Close the front and rear doors in order

to prevent danger.

2. Prepare to press the emergency stop

switch so as to immediately stop the

unit.

3. Press the [ORG] button on the

operation panel.

Origin position return is performed.

2 Measure the present Z-phase position.

1. Measure the distance from the LM

guide rail end to the LM guide face on

the left side of the unit with a scale.

Suppose that the measured value is A.

(Example : 23.5 mm)

3 Press the emergency stop switch.

Servo is turned off.

ORG sensor Dog

5 mm

Emergency stop

switch

ORG button

A (23.5 mm)

LM guide face

LM guide rail end

Adjustment

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Matching of X Axis Z-Phase

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4 Stop the X axis at the boundary position

where the ORG sensor LED in extinguished

condition lights up.

1. Manually move the X axis in right

direction to the position where the dog

leaves the ORG sensor.

2. Manually move the X axis in left

direction little by little and stop at the

boundary position where the ORG

sensor LED in extinguished condition

lights up.

5 Measure the dog detection position of the

ORG sensor.

1. Measure the distance from the frame

end face to the LM guide face on the

left side of the unit with a scale.

Suppose that the measured value is B.

(Example : 31.5 mm)

By 2 times of measurements, the amount of movements from the dog detection position of an ORG sensor

to the present Z-phase position can be found.

Suppose that the present amount of movement is C.

Example : A (23.5 mm) - B (31.5 mm) = C (-8 mm)

6 The difference between the present mount of movement and the amount of Z-phase setup

movement “5 mm” is searched for. Suppose that this difference is D.

Example : Present amount of movement (-8 mm) + Amount of Z-phase movement (5 mm)=D (-3 mm)

Since the present amount of movements is too as large as -8 mm, the adjustment made small 3 mm is required of this example.

7 Adjust the Z-phase setup position.

Adjust the Z-phase setup position by adjusting the positional relation between the motor and ball screw.

1. Move the head to the center of X axis

to secure working space to loosen the

coupling screws.

2. Loosen the screw M4 on the ball screw

side of the coupling.

3. Measure the distance from the LM

guide rail end to the LM guide face

with a scale. (Example : 235 mm)

Suppose that this measured value is E.

E (235 mm) - D (-3 mm) = Target dimension (238 mm)

B (31.5 mm)

Extinguished

Lights-up

Coupling

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Matching of X Axis Z-Phase

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4. Move the X axis by dimension of the difference (D) with setup movement found in the

procedure 6.

Example : Adjust the X axis so that the distance between the LM guide rail end and the LM guide face is 238 mm.

When the X axis is moved, the coupling should not be moved.

If the difference between the present amount of movements and the amount of Z-phase setup movement is

positive, move the X axis to the CCW sensor side (left direction), and if the difference is negative, move it

to the CW sensor (right direction).

5. Fasten the screw M4 on the ball screw side of the coupling with a torque driver.

Tightening torque :3.4 N･m

8 Turn the emergency stop switch in the arrow direction to release the emergency stop state.

9 Press the [ORG] button on the operation panel to perform origin position return.

10 Check the Z-phase setup position.

1. Measure the distance from the LM guide rail end to the LM guide face with a scale.

Suppose that this measured value is A.

2. Measure the dog detection position of the ORG sensor with a scale. Suppose that the

measured value is B.

Check that a relation is obtained as A (Z-phase set-up position) =B - 5 mm (Z-phase set-up movement amount)

Tolerance level : ±2 mm (Target value:±1 mm)