KE-750_QA表.pdf - 第12页

FUNCTION NAME Ball Splines Runout F unction/Performance CHECK/ADJUSTMENT MET HODS (REMEDIAL ACTION PROCEDURE) ASSURED QUALITY Reliability QUALITY CHARACTERISTI CS (SPECIFICATION VALUES) CATEGORY Safety Product Image ROLE…

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FUNCTION NAME Z-Axis Load Function/Performance CHECK/ADJUSTMENT METHODS (REMEDIAL ACTION PROCEDURE)
ASSURED QUALITY Reliability
QUALITY CHARACTERISTICS (SPECIFICATION VALUES) CATEGORY Safety
Product Image
ROLE IN FUNCTION (MEANING OF SPECIFICATION VALUES)
POSSIBLE MALFUNCTIONS (CAUSED BY INCORRECT SPECIFICATION VALUES)
COMPONENTS
NO. Part No. Part Name Associated Quality Characteristics
1
2
3 MODEL KE-750/760
4
UNIT Head
REF. NO.
5
NAME
8
6
FUNCTION Z-Axis Load
7
NAME
8
9
10
QA Table
Using a spring balance, measure the sliding resistance of Z-axis with Z-motor demounted.
Z-axis sliding resistance: 9.8 N {1 kgf} or less
Check at this time that the Z-slide bracket falls by its own weight.
The Z-slide bracket should fall by its own weight when the headup SP is removed.
Adjustment procedure:
Moving the Z-slide bracket up and down, tighten screw (a) so that the Z-slide bracket lowers by its own
weight. Apply Loctite 242 to screw (a).
Affects the settling time (damping characteristics) of Z.
– Degraded placement accuracy
– Component pickup failure, LA error
FUNCTION NAME Ball Splines Runout Function/Performance CHECK/ADJUSTMENT METHODS (REMEDIAL ACTION PROCEDURE)
ASSURED QUALITY Reliability
QUALITY CHARACTERISTICS (SPECIFICATION VALUES) CATEGORY Safety
Product Image
ROLE IN FUNCTION (MEANING OF SPECIFICATION VALUES)
POSSIBLE MALFUNCTIONS (CAUSED BY INCORRECT SPECIFICATION VALUES)
COMPONENTS
NO. Part No. Part Name Associated Quality Characteristics
1
2
3 MODEL KE-750/760
4
UNIT Head
REF. NO.
5
NAME
9
6
FUNCTION Ball Splines Runout
7
NAME
8
9
10
QA Table
Using a dial indicator, measure runout of the ball splines at the upper end and lower end of the Z-axis stroke.
Runout of ball splines: 0.07 mm or less (as measured at the
upper end and lower end of the Z-axis stroke)
Minimizes load applied to coupling θ to prevent the coupling from being damaged.
Damaged coupling
FUNCTION NAME Runout of Ball Screw Coupling Mounting Part Function/Performance CHECK/ADJUSTMENT METHODS (REMEDIAL ACTION PROCEDURE)
ASSURED QUALITY Reliability
QUALITY CHARACTERISTICS (SPECIFICATION VALUES) CATEGORY Safety
Product Image
ROLE IN FUNCTION (MEANING OF SPECIFICATION VALUES)
POSSIBLE MALFUNCTIONS (CAUSED BY INCORRECT SPECIFICATION VALUES)
COMPONENTS
NO. Part No. Part Name Associated Quality Characteristics
1
2
3 MODEL KE-750/760
4
UNIT Head
REF. NO.
5
NAME
10
6
FUNCTION Runout of Ball Screw Coupling
7
NAME Mounting Part
8
9
10
QA Table
Apply a dial indicator to the location shown on the right and turn the ball screw to measure runout.
Runout of the part to which the ball screw coupling is mounted: 0.05 mm or
less
0.05
Dial indicato
Minimizes load applied to the coupling to prevent it from being damaged.
Damaged coupling