MX650B 5-Axis Vertical Machining Center: A Lean Solution for High-Precision Complex Machining

The MX650B 5-axis Vertical Machining Center, meticulously crafted by DRC Machinery, is a high-end intelligent equipment tailored for the aerospace, automotive mold, and high-precision complex parts machining sectors. This machine integrates advanced structural design, precise transmission technology, and an intelligent control system. Building upon the inherent rigidity and stability of traditional vertical machining centers, it achieves the perfect synergy of high rigidity, high precision, and high efficiency through 5-axis simultaneous functionality and core component upgrades. It provides manufacturing enterprises with a comprehensive solution for machining tasks ranging from simple operations to complex curved surfaces.

I. High-Rigidity Structural Design: Laying the Foundation for Long-Term Precision

The MX650B employs an integral bridge-type gantry structure. The base remains stationary, while the crossrail moves along the base for the Y-axis. The saddle and ram provide X-axis and Z-axis feeds, respectively. The rotary table is fixed on the base for A/C-axis linkage, forming a spatial 5-axis machining architecture. This design not only ensures an exceptionally large machining stroke (X650mm/Y800mm/Z560mm) but also optimizes the force transmission path.

The core components of the machine (base, wallboards, crossrail, etc.) are made of high-quality resin sand cast iron. These components undergo double heat treatment and full aging treatment to eliminate residual stress. Combined with a dense reinforcing rib design and CAE finite element analysis optimization, the overall rigidity is increased by 25% compared to traditional structures. This effectively resists vibration and deformation under heavy cutting conditions. The Y-axis adopts a four-rail support + dual-screw dual-motor drive system, which completely eliminates the effects of eccentric loading, significantly enhancing load capacity and motion stability. The X/Y/Z axes are all equipped with Swiss brand roller linear guideways, paired with Taiwanese ground double-nut ball screws. Both ends of the screws use Japanese precision support bearings with pre-tensioning treatment, fundamentally eliminating accuracy loss caused by thermal elongation and constructing a high-rigidity, low-friction transmission system.

The A-axis features a double-end support structure with a Taiwanese DD (Direct Drive) motor, achieving a zero-backlash design with stable high-torque output. Combined with the C-axis's 360° infinite rotation capability, it can easily handle multi-directional machining requirements of complex curved surfaces, ensuring machining consistency under high-inertia loads.

II. Core Performance Upgrades: Empowering Efficient and Precise Machining

(A) High-Speed, High-Rigidity Spindle System

The spindle utilizes an HSK A63 high-precision interface, achieving dual positioning on the taper and end face with excellent dynamic balance performance. The speed range covers 10-15,000 rpm, meeting diverse needs from low-speed heavy cutting to high-speed finishing. The spindle has a rated power of 18kW (S1) and a peak power of 30.6kW (S6-25%), with a maximum torque of 140Nm (S6-25%). Paired with high-precision angular contact ball bearings, it ensures both high-rigidity cutting capability and extremely high rotational accuracy.

The spindle uses grease lubrication, enabling long-term maintenance-free operation, which is economical and environmentally friendly. It comes standard with a Tongfei brand constant temperature cooling system, effectively controlling temperature changes during high-speed operation, minimizing thermal deformation, and significantly improving part machining surface quality and dimensional stability.

(B) High-Precision Direct Drive Rotary Table

Equipped with a high-performance Taiwanese DD direct drive rotary table, the table size is φ630mm with a maximum load capacity of 850kg. The A-axis tilt angle is ±120°, and the C-axis offers 360° infinite rotation, satisfying the clamping and machining requirements of large, complex parts. The rotary table is equipped with a German HEIDENHAIN high-precision angle encoder, combined with full closed-loop control technology, achieving a repeat positioning accuracy of ±0.006°. It features no gear backlash, fast response, and precise positioning, making it particularly suitable for 5-axis simultaneous machining of complex curved surfaces.

(C) High-Dynamic Feed System

The rapid traverse speeds of the X/Y/Z axes reach 48m/min, 48m/min, and 36m/min, respectively, greatly reducing non-cutting time and improving production efficiency. The system adopts a full closed-loop control architecture. The X/Y/Z axes are fitted with German HEIDENHAIN high-precision linear scales, with the Y-axis additionally configured with dual linear scale feedback, ensuring a synchronization error of less than 5μm. The positioning accuracy is 0.008mm, and the repeat positioning accuracy is 0.006mm, guaranteeing precise control of each feed movement to meet stringent high-precision machining requirements.

III. Intelligent Control System: Simplifying Complex Machining Processes

The MX650B is powered by the latest SIEMENS SINUMERIK ONE 5-axis CNC system, featuring an intuitive and user-friendly interface, powerful functionality, and stable reliability. The system boasts exceptional data processing capabilities, supporting complex path planning and real-time multi-axis simultaneous control, easily handling the machining needs of complex workpieces such as aerospace parts and precision molds.

Additionally, the system integrates multiple intelligent functions: The RENISHAW automatic calibration function can complete 5-axis rotary table calibration within 10 minutes, significantly improving machining consistency. The 3D collision prevention system effectively avoids equipment damage caused by program or operational errors through pre-collision simulation and emergency braking mechanisms, reducing production risks.

IV. Humanized Auxiliary Design: Enhancing Operational Efficiency

The machine comes standard with a comprehensive auxiliary system to ensure long-term, efficient, and stable operation: The intelligent automatic lubrication system monitors lubrication status in real-time and precisely distributes lithium-based grease, extending the guideway lubrication cycle to 2,000 hours, reducing maintenance frequency and manual intervention. The spindle air-blow device, high-efficiency chip removal system, and fully enclosed sheet metal protective cover work in tandem to maintain a clean machining area and extend the service life of the machine and tools. The large transparent observation window and ergonomic control layout make the operation process safe and convenient, enhancing the user experience.

The tool magazine is a 30-tool capacity Taiwanese OKADA umbrella-type tool magazine, supporting random tool selection. It can accommodate a maximum tool weight of 8kg and a maximum tool length of 300mm, meeting the requirements of multi-process continuous machining, reducing tool change time, and improving machining continuity.

V. Wide Range of Applications: Driving Industrial Upgrading

With its outstanding machining performance and flexible adaptability, the MX650B is widely used in aerospace, automotive manufacturing, mold making, hardware machinery, and other fields. Whether it's milling and drilling high-precision complex parts or machining curved surfaces of large molds, it can achieve efficient and precise production. It helps manufacturing enterprises break through technical bottlenecks, enhance core competitiveness, and adapt to the development needs of modern lean production.

VI. Comprehensive Quality Assurance: A Worry-Free Cooperation Experience

The core components of the machine are sourced from renowned international and domestic brands. The CNC system and drive motors are from SIEMENS, the guideways and ball screws are from HIWIN, the linear scales and angle encoders are from HEIDENHAIN, the pneumatic components are from a German brand, and the electrical components are from SCHNEIDER, ensuring the reliability and stability of the entire machine.

The production process strictly adheres to 70% of the internal control standards based on national standards. Before shipment, the machine undergoes dual load testing with S-shaped and spherical workpieces. Prior to delivery, it passes multiple inspections such as geometric accuracy checks. The acceptance process is divided into pre-acceptance (at the seller's site) and final acceptance (at the buyer's site) to ensure the equipment meets the technical agreement requirements.

For after-sales service, the machine enjoys a one-year warranty from the date of acceptance. In case of faults due to manufacturing defects during the warranty period, the seller will dispatch engineers for on-site repair within 48 hours of receiving notification and provide replacement parts free of charge. Beyond the warranty period, lifelong technical support and paid maintenance services are available to ensure the long-term stable operation of the equipment.

The MX650B 5-axis Vertical Machining Center, with its core advantages of high rigidity, high precision, high efficiency, and intelligence, integrates advanced technology and humanized design. It provides manufacturing enterprises with a reliable and cost-effective solution for complex machining, making it an ideal equipment for driving industrial upgrading and enhancing machining capabilities.