High Rigidity Structure / High Precision / High Productivity
Ultra Rigid "Box-in-Box" Construction
B-axis Rotary Table with 0.001° Indexing
Twin Servo Drive for X-Axis
Automatic Pallet Changer
HEIDENHAIN Linear Scales on X/Y/Z
60-Tool ATC
Box-in-Box Design vs Conventional Single Column
The bottom of the box-in-box construction does not move. The X-axis movement relies on a balanced design with slideways on both top and bottom of our Box-in-Box construction. The X-axis is driven with two balls crews directly coupled to two FANUC servos simultaneously. The enhanced balance and extra rigidity ensure cutting accuracy under all conditions.
Conventional single column slides on two guideways at the bottom. This design suffers from wobble at high speed.This unbalanced structure limits high speed moment and worse, it does not provide a rigid enough structure for heavy milling.
Box-in-Box Design vs Conventional Single Column
High rigidity can achieved with HMC-500BP's box-in-box design, avoiding deformation and machine resonance.
This design works against itself, the cutting force tend to tilt the column back under heavy cutting, reducing accuracy and tool life.
Automatic pallet changer(APC) provides fast work-piece changing to reduce loading time and increases spindle utilization. A pallet change takes only 9 seconds.
The APC uses a system with 4 locator pins to ensure the pallet table is always clamped with high repeatability. Air blast is used to clean all 4 clamping surface contact areas.
Compared against a single-drive system, HMC-500BP's
simultaneous twin servo drive for X-axis can increase the rapid
traverse rate while ensuring vibration-free cutting conditions
than otherwise possible. The balanced design also help
minimize cutting vibration during Y-axis movement,so overall
tool life is increased and machine precision is enhanced.
The spindle utilizes NN series bearings to maintain important attributes such as precision, speed and rigidity at the highest level. The spindle is built to absorb axial and radial loads, providing high precision and long service life.
Linear scale feedback from Heidenhain are fitted to X,Y,and Z axes forming a closed loop for the CNC control so the exact physical location of the axes is always known. Issues like thermal displacement are a thing of the past.The linear scales are fitted with a positive air unit protecting the scales from oil and dust pollution, increasing the life of the linear scales.
All slideways have roller type re-circulating high precision linear guide ways. This design provides increased rigidity and increased speed in rapid traverse.
Y-axis is fitted with 2 pneumatic cylinders to provide counter balance for the
spindle structure, allowing axis movement without vibration at high speeds.
The Box-in-Box Design greatly contributes to accuracy in X-Y interpoloated movement as can be seen from the ball bar testing taken as a part of the machine QA process.
The automatic tool changer (ATC) is located outside the machining area. It uses a double-arm design for fast tool changes. The tool tower accommodates 60 tool positions and can provide bidirectional rotation and random access.
No detail is overlooked. The telescopic covers are oriented vertically to ensures easy chip flushing. The scissor-like mechanism of the telescopic covers help maintain proper distance between the slats, so the machine is protected from coolant and oil penetration.
Part material: medium carbon steel S45C
- FANUC 18i-M controller
- Automatic pallet changer
- B-axis rotary table with 0.001 degree indexing Upgraded Feature
- Linear scales for X, Y, Z-axis (HEIDENHAIN) Upgraded Feature
- Two-speed ZF gearbox for main spindle Upgraded Feature
- Screw type chip disposal
- Steel belt type chip conveyor
- Coolant unit Upgraded Feature
- Coolant through spindle system(17 bar)
- Deluge coolant
- Coolant system around the spindle
- Oil skimmer
- Coolant gun
- Hydraulic unit
- 60 tools ATC
- Spindle air blast system
- Air conditioner for electrical cabinet
- Rigid tapping
- Full enclosure
- Auto lubrication unit
- Telescoping way covers
- Tool box
- Signal tower(3-stage)
- Work light
- Leveling bolts and pads
- Operation and electrical manual
