Kitagawa BB200 Series Скачать руководство пользователя

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Use of a chuck and cylinder that cannot be used together safely may cause
the cylinder to break at high pressure resulting in the chuck
and work flying out.

For All Users

・Unbalanced work generates dangerous

centrifugal forces and the work could fly
out.

For All Users

・If the torque is insufficient or excessive,

the bolt will break, which is dangerous as
the chuck or work will fly out.

・Fix the lathe spindle or the chuck when

you tighten bolts. Your hand could slip and
get injury when you work without fixing the
spindle.

・You cannot control the torque by a hex

key. You must use a torque wrench for
torque control.

In the case of processing a significant unbalanced work,
lower the rotation speed.

Always tighten the bolts at the specified torque. If the torque is insufficient or excessive, the
bolt will break, which is dangerous as the chuck or work will fly out. Use the
bolts attached to the chuck, and do not use bolts other than these.

Provide sufficient strength for the draw pipe (Refer to pages 27-28).
Provide sufficient screw depth for the draw pipe.
Firmly tighten the draw pipe.

For Machine Tool Manufactures

・If the draw pipe break, the gripping force is

instantly lost and this is dangerous as work will
fly out.

・If the screw depth of the draw pipe is

insufficient, the screw will break and the
gripping force will be lost instantly, and this is
dangerous as work will fly out.

・If the engagement of the screw of the draw

pipe is loose, vibration may occur resulting in
breakage of the screw. If the screw breaks, the
gripping force will be lost instantly, which is
dangerous as the work will fly out.

・If the draw pipe is unbalanced, vibration

occurs, the screw is broken and the gripping
force will be lost instantly, which is dangerous
as the work will fly out.

・If the hydraulic pressure suddenly drops

due to blackout or malfunction of the
hydraulic pump, etc., this is dangerous as
work will fly out.

・Lock valve retains the hydraulic pressure

inside the cylinder temporarily, when the
hydraulic pressure suddenly drops due to
blackout or malfunction of the hydraulic
pump, etc.

Use a cylinder with a lock valve (safety valve, check valve) incorporated in case of
sudden hydraulic pressure drop due to blackout, malfunction of the hydraulic pump, etc.
Further, use a solenoid valve with a circuit that retains the
gripping position when no current is carried.

Important Safety Precautions

Failure to follow the safety precautions below will result in
serious injury or death.

DANGER

Failure to follow the safety precautions below will result in
serious injury or death.

DANGER

For Machine Tool Manufactures

・Check that the chuck and the cylinder are in the safe combination when using at high pressure with our company

or the distributor. Especially when the cylinder of our company and a high pressure chuck of other company are
combined, confirmation is necessary.

・If one of the abnormal events shown below occurs during

operation, immediately stop the machine and consult with our
company or the distributor.

・ The work slips.
・ Loss of accuracy.
・ The work begins to chatter.
・ The machine's vibration significantly increases.
・ The griping force does not rise even if hydraulic pressure is raised.

・Tightening torque is moment of force when you tighten a bolt. Tightening torque= F×L.

Tightening torque
T＝F×L
＝127×0.1
＝12.7（N・m）

L＝0.

1（m

）

F＝127（N）
（13kgf）

Specified torque for socket head cap screw

Bolt size

Tightening torque

M 5
M 6
M 8
M10
M12

7.5 N・m

13 N・m
33 N・m
73 N・m