Основной каталог Kyocera 2021 - 2022 - страница 764

Lathe installation DRX/DRZLathe installation DRX/DRZ Toolholder DRX

Lathe installation (DRX and DRZ) TurretTurret

1. The top face of the outer insert should be parallel to the

X-axis to allow for offset machining. X-axisX-axis Drill diameter can be changed by moving X-axis. of the machineof the Machine

2. It is recommended to set the outer insert as shown in Fig. 1 AA Outer edgeOuter edge

with the outer insert facing the operator. Moving direction of X-axisMoving direc (It is also possible to use it by setting it in 180˚ reverse position) Inner edgeInner edge

If the lathe has two turrets, when installing the drill into the tion of X -axis lower turret, the outer insert should be set to face the operator. (It is also possible to use it by setting at 180˚ reverse position) AA (Fig. 1) Installed to the lathe

Drill diameter adjustment

1. Drill diameter adjustment

1. Drill diameter is adjusted by moving X-axis. The moving direction of the X-axis depends on the position of the toolholder. 2. In case of making the hole diameter larger, slide the tool along the X-axis toward the outer insert side. (Fig. 2, Fig. 3) For making the hole diameter smaller, slide the tool along the X-axis in the opposite direction.

(This movement of the axis is called “Offset”)

However, be sure not to make the hole diameter smaller than the drill diameter by 0.2mm or more. Otherwise, the toolholder will interfere with

the drilled hole. (Fig. 4)

e.g.) In case of using ø20 drill, the hole diameter must not be smaller than 19.8mm.

2. Offs et Limit of the Drill Diameter

For the maximum limit of the drill diameter, refer to “Max. Offset (Radial)” in the Toolholder Dimensions table.

(The figure in the table shows how much it is possible the offset the drill in the radial direction.)

e.g.) In case of using ø20 drill, it is possible to make a hole up to ø21 since “Max. Offset (Radial)” is +0.5mm.

KK SmallerSmaller InterferenceInterference

LargerLarger X-axisX-axis of the Ma of the machine chine

LargerLarger Drill Dia.Drill dia.

X-axis X-axis SmallerSmaller

X-axis of the machine X-axis of the machineof the Machine of the Machine Outer edgeOuter edge Center of drillCenter of drill

Outer edgeOuter edge

Outer edgeOuter edge Center of spindleCenter of spindle

(Fig. 2) Outer insert facing up (Fig. 3) Outer insert facing down (Fig. 4) Excessive offset (For smaller hole diameter)

Center height adjustment

1. C enter height of the inner insert

When installing inner insert as shown in Fig. 1, it will be set around 0.2mm

below the Center of Spindle. (Fig. 5)

This is the normal position of the center height and the drill is designed to be

handled in this condition. However, in case that the turret of the lathe is out of the center of Spindle, sometimes the inner insert may be set above the center, or excessively below the center. For stable drilling, it is essential to check the Center Height carefully.

2. How to check the center height

For checking the center height of the inner insert, see the core which remains

at the center of the end face of the drilled hole. (Fig. 6)

If the center height is in the normal position, a core about 0.5mm in diameter, will remain after machining. In the following cases, it is necessary to adjust the center height.

• No core remains
• Core diameter is more than 1mm

* The drilled hole for verification purposes needs to be machined at approximately 10mm

in depth and at a feed rate of 0.1mm/rev or lower.

Inner edgeInner edge mm er nt CeCenter e out 0.2m the AbAbout 0.2m low th be below

Center of spindleCenter of spindle

(Fig. 5) Front view of the drill

Core (About 0.5mm in diameter)Core(about 0.5mm in diameter)

(Fig. 6) Center core