KE-750_QA表.pdf - 第15页
FUNCTION NAME θ -Axis Rotating Load Torque Function/ Performance CHECK/ADJUST MENT METHODS (REMEDIAL ACT ION PROCEDURE) ASSURED QUALITY Reliability QUALITY CHARACTERISTI CS (SPECIFICATION VALUES) CATEGORY Safety Product …
FUNCTION NAME Spline Housing IC 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
11
6
FUNCTION Spline Housing IC Runout
7
NAME
8
9
10
QA Table
Spline housing IC runout 0.05mm or less
Apply a dial indicator to the positiion shown on the right and turn θ-axis to measure runout
Dial indicator
Minimizes load applied to the flat spring of the encoder, thereby preventing the flat spring from being damaged.
– Broken flat spring of encoder
FUNCTION NAME
θ-Axis Rotating Load Torque 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
12
6
FUNCTION
θ-Axis Rotating Load Torque
7
NAME
8
9
10
QA Table
Measure rotating torque with a torque gage.
Rotating torque: 0.049 N.m {0.5 kgf.cm} or less
A possible cause is an excessive rotating torque of the rotary block.
For the remedial procedure, see "QA Table: Rotary Block Rotating Torque."
Affects the settling time (damping characteristics) of θ.
Degraded placement accuracy (variations in θ)
FUNCTION NAME Z-Slider Shaft Height 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 E30027250A0 Head unit HD assembly
2 E31027250A0 Head unit LA assembly
3 E32027250A0 Head unit IC assembly MODEL KE-750/760
4 E3019721000 Head center shim A t0.1
UNIT Head
REF. NO.
5 E3020721000 Head center shim B t0.05
NAME
13
6 E3021721000 Head center shim C t0.03
FUNCTION Z-Slider Shaft Height
7
NAME
8
9
10
QA Table
Head unit on bench:
Height of Z-slider shaft: 40 ±0.02 mm (eccentric center as measured at the Z pickup position)
Pickup
height
Mount the jig nozzle (φ20) on the Z-slider shaft, apply a dial indicator to the periphery of the jig nozzle, and
turn the Z-slider shaft. Check that eccentricity is 0.02 mm or less and, at the same time, select head center
shim A, B, or C and place it between the head bracket and head plate jig so that the eccentric center
becomes 40 ±0.02 mm. At this time, measure Z position at the pickup point [see the assembly drawing of
head assembly (750, 760, 7520, 7620)]. At the same time, measure also the traveling parallel alignment in
Z-direction.
Head center shim
Head cente
r
shim
Head plate jig
Pickup
height
Greatly affects pickup reliability at simultaneous pickup.
– Component pickup failure
– Degraded placement accuracy