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Hole Making Rough/Fine Boring

AFB Series Fine Boring Head Operator's Manual

Procedures of Use

Main Components of Fine Boring Head

Preparation: 1. Verify that the adjustment range of the fine boring head meets the requirement of the bore diameter to be machined. 2. Check (right figure) that all parts are in order; that the cartridge and insert locking screws are locked tight.

Insert screw

Oil cup

Insert

Cartridge

Fine adjustment dial

Cartridge clamping screw

3. Clean and wipe the shank mounting hole and tighten the boring head mounting screw on the shank. 4. Confirm that the assembled boring tool meets the requirement of boring diameter and machining depth. Step 1: Loosen the fine adjustment cartridge locking screw ⑦ on the tool change chuck or tool setting gauge. Step 2: Rotate the fine adjustment dial ③to preset to the size needed as indicated . Step 3: When preset to the size needed, please make the fine adjustment in the same direction to ensure the fine adjustment accuracy. Step 4: Tighten the fine adjustment cartridge locking screw ⑦ with proper force to complete the adjustment.

Head

Slider locking screw

Shank

Attention

1. Before machining, make sure all parts are locked properly to avoid damage to the boring head during machining. 2. The AFB series fine boring head rotated its internal precision screw to achieve radial movement of the cartridge. In case of excessive resistance or unable to turn the adjustment dial, stop the operation and check immediately (whether the adjustment cartridge screw is loose or it is out of the adjustment range of the boring head diameter). 3. For back-boring, use the right-hand insert and reverse rotate the machine spindle, paying attention to the interference range during the movement. 4. For long overhang (> 4 x coupling diameter), it is recommended to use anti-vibration boring tools. 5. Large insert nose radius will help to improve machining safety and surface quality, but may generate vibration. An insert nose radius bigger than 0.4 mm should not be used for finish boring.

ARB Series Rough Boring Head Operator's Manual

Main Components of Rough Boring Head

Procedures of Use

Preparation: 1.Verify that the adjustment range of the rough boring head meets the requirement of the bore diameter to be machined. 2.Check (as shown on the right) that all parts are in order; and the cartridge, radial adjustment screw, and insert locking screw are locked to prevent damage to the tool or to avoid cartridge flying out during machining and causing accidents. 3.Confirm that the assembled boring tool meets the requirement for boring diameter and machining depth. Pay attention to the chip removal, cooling, cutting depth and other conditions, and pay attention to the impact of chips to the vibration control. Step 1: On the tool change chuck or tool setting gauge, loosen the cartridge screw ⑥ . Step 2: Turn the radial adjustment screw ⑦ to reach the required size of the tool. Step 3: After adjusting to the size of the tool, lock the cartridge screw ⑥ to complete the adjustment.

Attention

1. Before machining, ensure that all parts are properly locked to avoid damage to the boring head or prevent the cartridge flying out during machining, which may cause accidents. 2. ARB series rough boring heads are designed for equal radius and balanced machining with double edge cutting; they are used for rough boring with tolerances greater than or equal to IT9 when metal removal rate is a priority. 3. For rough boring with large depth of cut, adequate chip space and chip evacuation condition must be ensured to reduce tool vibration caused by chip jam. 4. For long overhang (> 4 x coupling diameter), it is recommended to use anti-vibration boring tools. 5. A large insert nose radius will help to improve machining safety and surface quality, but may generate vibration. The recommended starting tip nose radius is 0.8 mm.

Bridge boring main parts name

Cartridge clamping screw

Cartridge adjustment screw

Cartridge

Bridge clamping screws

Slider clamping screw

Rough boring slider

Bridge clamping screw

4

Bridge

Flange clamping screw

Flange coupling plate

Rough boring slider adjustment screw

Bridge

7

547

547

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