KE-750_QA表.pdf - 第21页
FUNCTION NAME Z-Motor Centering F unction/Performance CHECK/ADJUSTMENT METHODS (REMEDIAL ACT ION PROCEDURE) ASSURED QUALITY Reliability QUALITY CHARACTERISTI CS (SPECIFICATION VALUES) CATEGORY Safety Product Image ROLE I…
FUNCTION NAME Head Center Distance (X-Direction) 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
UNIT Head
REF. NO.
5
NAME
17
6
FUNCTION Head Center Distance
7
NAME (X-Direction)
8
9
10
QA Table
Eccentric center as
measured at the Z pickup
position
750 760
L head R headR headC headL head
Head unit IC assembly
Mount the jig nozzle on the R head and turn ON vacuum. Lower the Z-axis and apply a dial indicator to the
periphery of the jig nozzle. Then, move the head in the Y-axis direction and stop it when the dial indicator
pointer deflects most. Next, turn θ-axis, stop it at the center of deflection, and set the dial indicator
graduations to 0.
Recess the head in the Y-direction, move the X-axis over the center-to-center distance, demount and
remount the jig nozzle, and turn ON vacuum. In the same manner as before, check that the center of
deflection falls within ±0.02 mm when θ-axis is turned using the dial indicator. At this time, measure Z
position at the pickup point [see the assembly drawing of head assembly (750, 760, 7520, 7620)].
Adjustment procedure:
Loosen fixing screws (a) (at four places) of the head, move the head about positioning pin (b) to meet the
specification value, and then screw the head in position.
Fixing screw (a)
Positioning pin (b)
Greatly affects pickup reliability at simultaneous pickup.
– Component pickup failure
– Degraded placement accuracy
FUNCTION NAME Z-Motor Centering 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 E3023721000 Coupling
2 E93077250A0 LZ head motor assembly
3 E93117250A0 CA head motor assembly MODEL KE-750/760
4 E93097250A0 RZ head motor assembly
UNIT Head
REF. NO.
5
NAME
18
6
FUNCTION Z-Motor Centering
7
NAME
8
9
10
QA Table
With the coupling fixing screws (at two places) loosened, move the coupling up and down. Secure the Z-motor
when the coupling can be moved smoothly without binding.
The Z-motor shaft must be aligned properly with the ball screw to prevent an excessive load from being applied to
the coupling.
Coupling
Z-moto
r
Minimizes load applied to the coupling to prevent it from being damaged.
– Damaged coupling
FUNCTION NAME Encoder Centering 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 E93057250A0 LAIC θ head encoder assembly
2 E32057250A0 Spline housing IC assembly
3 MODEL KE-750/760
4
UNIT Head
REF. NO.
5
NAME
19
6
FUNCTION Encoder Centering
7
NAME
8
9
10
QA Table
The encoder must be installed in complete alignment with the spline housing IC assembly to prevent an
excessive load from being applied to the flat spring of the encoder. (LAIC only)
Secure the encoder so that rotation of θ-axis (spline housing IC assembly) does not result in load being applied to
the encoder.
Spline housing IC
assembly
Encode
r
Minimizes load applied to the flat spring of the encoder, thereby preventing the flat spring from being damaged.
– Damaged flat spring