Hydraulic Cylinder Deep Hole Drilling Machine

**1. Machine Bed**
- Features two hardened rectangular guide rails for enhanced wear resistance.
- Split design assembled with high-strength bolts and aligned with taper pins.
- Right side: High-precision ball screw pair (Z1 axis) for boring bar box feed and rapid movement, driven by a servo motor to ensure smooth operation, high efficiency, and extended tool life.
- Left side: Trapezoidal screw pair (Z2 axis), servo-driven for oil feeder advance and clamping, with self-locking to prevent back movement.
- Guide rails include external protective covers for effective leak prevention.

**2. Headframe**
- Fixed at the left end of the bed.
- Right side: Equipped with a taper disc for workpiece positioning/clamping and a guide sleeve for tool support.
- Left side: Chip removal cylinder directs chips and coolant into the conveyor.

**3. Workpiece Bracket**
- Supports workpieces during clamping, positioned slightly below the final clamped height.
- Adjustable via a handwheel-driven reduction mechanism to accommodate various outer diameters.
- Reduction mechanism ensures easy and smooth operation.

**4. Servo Clamping Device**
- Clamps workpieces using a servo motor, precision planetary reducer, and bidirectional trapezoidal lead screw.
- Provides self-centering, with adjustable speed and clamping force.
- Clamping sequence can be manually set and occurs after workpiece positioning.

**5. Oil Pressure Head**
- Core component for tool guidance, coolant supply, boring bar sealing, and workpiece positioning/clamping.
- Left end features a 60° taper disc for workpiece engagement.
- Movement (Z2 axis) driven by the trapezoidal screw pair on the bed.

**6. Boring Bar Box**
- Mounted on the feed carriage to drive tool rotation and feed.
- AC servo spindle motor drives the spindle via belts and gears; front end holds a boring bar clamping sleeve.
- Gears are precision-ground and high-frequency hardened for durability, strength, and resistance to heavy loads.
- Independent circulating lubrication system prolongs gear and bearing life.

**7. Boring Bar Support**
- Supports the boring bar with a sleeve that absorbs machining vibrations and shock.
- Hook-designed bracket moves with the boring bar box during retraction and releases automatically at preset positions.

**8. Cooling System**
- Provides coolant for lubrication, cooling, and chip removal.
- Consists of a motor-pump supply system with adjustable flow.
- Above-ground tank design: coolant flows through the workpiece, passes through a chip conveyor, and is filtered (screen → magnetic → drum filter) before returning to the clean tank.
- Includes sensors and displays for pressure, flow, level, and temperature.
- Optional oil mist separator and cooler available.

**9. Hydraulic System**
- Powers hydraulic shifting of the boring bar box and automatic tool expansion/contraction.

**10. Control System**
- Independent dust-proof electrical cabinet with internal cooling for stable device operation and longevity.
- Equipped with Siemens CNC and Delixi Electric components; other CNC brands available upon request.

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