KE-750_QA表.pdf - 第53页

FUNCTION NAME Squareness of Head Plate (Jig ) Function/Performance CHECK/ADJUSTMENT METHODS (REMEDIAL ACT ION PROCEDURE) ASSURED QUALITY Reliability QUALITY CHARACTERISTI CS (SPECIFIC ATION VALUES) CATEGORY Safety Produc…

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FUNCTION NAME Straightness and Parallelism of LM Guide (Y) 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 E2303725000 LM guide (Y)
2 E2301725000 Y-axis frame L
3 E2302725000 Y-axis frame R DEL KE-750/760 MO
4 UNIT X-Y Unit REF. NO.
5
NAME
XY-5
6 FUNCTION Straightness and Parallelism of
7
NAME LM Guide (Y)
8
9
10
QA Table
Straightness
Straightness of LM guide (Y): 20 um or less in each rail
Jig
X Axis Frame R
X Frame End L
[Check procedure]
Parallelism between left and right LM guides (Y): 20 um or less
(1) Place two base bridges on the top surface of base
frame and mount a jig on which to install the I-shaped
straightedge. (Place the I-shaped straightedge on
the transport rails if the machine is equipped with a
PWB transport unit.)
(2) Set a dial indicator on the LM guide (Y) block and
adjust I-shaped straightedge to "0" on both ends of the
guide.
(3) Check that straightness is 20 um or less over the
entire stroke of the LM guide.
[Adjustment procedure]
(1) Check that the distance between the Y-axis frame
surface on which magnescale is mounted and the LM
guide rail side face measures 12.5 mm.
– Concerned with critical positional deviations (especially in X-direction) in pickup and placement, it affects placement
accuracy.
(2) Near the portion at which straightness falls outside the
specified range, loosen the bolt that secures the LM
guide and, adjusting the rail position, tighten the bolt
again.
- Affects smoothness of the X-axis motion in Y-direction.
– Degraded placement accuracy
– Noise during motion in Y-direction
12.5
– Reduced LM guide durability
Parallelism
[Check procedure]
(1) Mount the X-axis frame jig (or X-axis frame assembly)
on Y-axis and fix the left LM guide block to frame end
L.
(2) Temporarily secure the right LM guide block to frame end R, set a dial indicator to frame end R, and apply the dial
indicator to the rail side face of LM guide.
(3) Move frame end L and check that parallelism is 20 um or less over the entire stroke of LM guide.
[Adjustment procedure]
(1) Loosen the screw that secures Y-axis frame R to the base frame. Move the X-axis frame jig (or X-axis frame
assembly) on the frame end L side and, adjusting the position of Y-axis frame R, make an adjustment for parallel
alignment.
(2) After the adjustment has been made, tighten the Y-axis frame R set screw.
FUNCTION NAME Squareness of Head Plate (Jig) 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 E2402725000 X-axis frame
2 E2405725000 X frame end L
3 E2406725000 X frame end R MODEL KE-750/760
4 E2427725000 X end adjust shim A UNIT X-Y Unit REF. NO.
5 E2428725000 X end adjust shim B
NAME
XY-6
6 E2429725000 X end adjust shim C FUNCTION Squareness of Head Plate (Jig)
7
NAME
8
9
10
QA Table
X frame end L 7/ X frame end R
Squareness of the head plate with respect to the reference surface of X frame end L/R: 0.03 or less
Important to ensure squareness between the PWB transport surface and head.
Using a square master, measure squareness of the head plate (jig) with reference to the X frame end L/R surface on
which LM block is mounted. At this time, the head plate (jig) shall be located at almost the center of the X-axis frame.
Adjustment procedure:
To arrive at the specified squareness, select the following shims to make up a combination and place them in the coupling
between the X-axis frame and X frame end L/R:
– Degraded placement accuracy
X end adjust shim A (t 0.1)
– Pickup failure
X end adjust shim B (t 0.05)
X end adjust shim C (t 0.03)
FUNCTION NAME Gap Between the Magnescale Affixing Function/Performance CHECK/ADJUSTMENT METHODS (REMEDIAL ACTION PROCEDURE)
Position and Head
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 E9606715000 Magnescale
2 E9609721000 Magnescale
3 E9608721000 Magnescale head MODEL KE-750/760
4 E2402725000 X-axis frame UNIT X-Y Unit REF. NO.
5 E2405725000 X frame end L
NAME
XY-7
6 E2415725000 X-MSC bracket FUNCTION Gap Between the Magnescale
7 E2301725000 Y-axis frame L
NAME Affixing Position and Head
8 E2302725000 Y-axis frame R
9 E2319725000 Y-MSC bracket L
10 E2320725000 Y-MSC bracket L
QA Table
Affixing Y-axis magnescale:
Magnescale affixing position
(1) Wipe the magnescale cover clean of dirt with a cloth dampened with alcohol.
– Y-axis:
(2) Wipe the magnet surface of the magnescale clean with a clean soft cloth.
251.5 ±2 mm from the LM guide front end face.
(3) Using double-sided adhesive tape, affix the cover to the magnescale.
Affix magnescale along the LM guide mounting surface.
(4) Affix the serial no. and rating nameplate.
– X-axis:
(5) Wipe clean the Y-axis frame surface with alcohol and affix the magnescale to the specified position.
147.5 ±2 mm from the X frame end L surface on which stopper is mounted.
* Do not allow magnescales to be in contact with each other.
10 mm from the X-axis frame rear surface.
* Keep a magnetized screwdriver and any other body away from the magnescales.
Head cap 1.5mm
- Distance between the X frame end
L stopper mounting surface and
magnescale end face: 147.5 ±2
mm
- 10 ±2 mm from the X-axis frame
rear surface
(Affix along the marking-off line.)
Loosen the M4x20 set screw,
insert two furnished spacers
into the space between the
magnescale and head, and
then tighten the set screw to the
specified torque (0.9 Nm).
Check that the magnescale is
not in contact with the head
over the entire stroke.
Magnescale
end face
(See the Y-axis magnescale affixing procedure.)
A
ffixing the X-axis magnescale:
251.5 ±2 mm from the LM
guide front end face.
Important in accurately providing feedback control of the X- and Y-axis.
– Poor accuracy in X/Y stopping position
Magnescale
head
Tightening torque: 0.9Nm
X-MSC bracket
Magnescale
head
Y-MSC bracket
Magnescale detection head
gap adjustment (X/Y-axis)
A
djustment value: 1.5 mm
(furnished spacers used)
*Wipe the surface clean of dirt
with alcohol.
– Degraded placement accuracy
– Defective sensor