Installation Of The Motor Spindle - Nakanishi iSpeed3 Operation Manual

13 . INSTALLATION OF THE MOTOR SPINDLE

WARNING
When installing a motor spindle to a fixed base, make sure the fixed base is grounded in order to
avoid the risk of an electric shock.
13 - 1 Fixturing a straight type motor spindle : BM 319 , BM 320 , BM 322 and BM 325 .
When mounting motor spindle, refer to the clamping area etched on the spindle body (Fig. 23 ).
The installation shown in Fig. 24 is the recommended fixturing method. If this is not possible, install as shown in Fig. 25 .
Do not use Set Screws directly in contact with the motor spindle body as shown in Fig. 26 , as this will result in damage
to the motor spindle housing and internal components.
When mounting, never clamp directly over the bearings, as this will result in bearing damage.
Fastening Bolt
Split type holder
CAUTION
・ When installing a motor spindle, do not hit, drop or cause shock to the motor spindle. This may
cause damage to internal components and result in malfunctions.
・ Cautions when tightening the securing bolt
Do not over tighten the bolt. This may cause damage to motor spindle's precision.
Tighten the bolt until the motor spindle body can not be turn by hand within the fixture.
Extreme tightening is not necessary or recommended.
Apply working force and check that the motor spindle is tight before using. （ When adjusting
the clamping level, refer to Section 15 " MOTOR CURRENT DISPLAY AND ADJUSTING THE
CLAMPING LEVEL " of the iSpeed 3 control unit Operation Manual. ）
RECOMMENDATIONS
・ Advice when using split type holders and all similar types of installation methods.
Insert a shim into the holder bore, and tighten the bolt with minimal torque.
Manufacture the holder with roundness and cylindrical tolerance of less than 5 μ m.
13
( )
22 40.5 Clamping Area
BM319 / BM320
Fastening Bolt
Slit
Bushing with Slit
Fig. 24 Fig. 25
Fig. 23
Fastening Bolt
Slit of Bushing
Fig. 26
( )
Clamping Area
25 39.1
BM322 / BM325
Fastening Bolt