Vertical Machining Center

(1)   The VMC-168G machine features a high-quality bed imported from Taiwan. Key parts like the spindle, wire rail, and bearings are assembled and tested in Taiwan to ensure top performance. In Hefei, the focus is on putting together the electrical circuits, outer casings, and control systems. The VMC-168G’s base is precisely designed and made from a single piece of MEEHANITE cast iron, giving it a sturdy closed box structure that won’t warp with heat treatment. This special type of cast iron is annealed to remove stress, ensuring the machine remains rigid and stable. At a weight of 16,000 kg and supported by a 10-point system, the machine stands firm, minimizes vibration, and maintains its shape even with heavy and long-term use.

(2)   The VMC-168G has a strong and wide base with a double-clad box structure, reinforced with rib structures in the base, saddle, worktable, and column for maximum rigidity and precision. This design prevents any deformation of the machine tool. The saddle is built to support heavy loads, ensuring the machine can handle up to 2500 kg on the worktable. Additionally, the machine features a dual-motor drive and double helix chip removal system at the rear, which helps to dispose of iron filings efficiently, contributing to a cleaner and more aesthetically pleasing structure. For convenience, it comes equipped with a retractable spiral water gun, an air gun, and washing devices on both sides, making machine maintenance simpler.

(3)   The VMC-168G machine features a robust three-axis structure with hard rails, including a square rail design on the Y-axis for enhanced stability. It uses a volume-type oil distributor paired with copper oil pipes to ensure even lubrication across all points, which prevents wear on the sliding surfaces and keeps the three-axis rods well-lubricated. The axes incorporate Japanese technology with a unique “米”-shaped shovel and “Z” oil grooves, creating a consistent oil film on the sliding surfaces. This design minimizes uneven movements and delays, ensuring smooth cutting. Its rigidity, friction resistance, low noise, and friction characteristics promote circular accuracy, positioning precision, and error control. The three axes use Taiwan HIWIN or PMI high-precision C3 ball screw and Japan NSK (40TAC72B) precision bearings. Pre-tensile assembly prevents thermal extension. FANUC servo motors power the axes, eliminating the need for stroke switches, thus minimizing faults. Fast speeds of 16 m/min for X & Y and 12 m/min for Z with X/Y/Z traverse 1600MM / 870MM / 700MM respectively offer ample workspace for processing a wide range of products.

(4)   The Z-axis motor is equipped with a braking system and a counterweight mechanism with a guide rod. This innovative design prevents workpiece damage by preventing the Z-axis from slipping during unexpected power failures. This ensures smoother, faster, and more precise cutting movements of the spindle head. The counterweight stabilizes the Z-axis, minimizing vibrations and maximizing accuracy. In the event of a sudden power outage, the Z-axis automatically retracts, safeguarding both the workpiece and tooling, ensuring maximum reliability.

(5)   The spindle employs the high-performance BBT50 spindle of Taiwan NEO. With a two-stage gear design, it provides exceptional torque at low speeds, reaching a maximum of 522NM for heavy-duty cutting. All transmission gears are made of chrome-molybdenum alloy steel by HAMADA and undergo heat treatment and precision grinding. The spindle’s design incorporates a 100mm diameter sleeve, enhancing both cutting capacity and rigidity. It is precision-ground and assembled using P4-grade bearings in a dust-free, temperature-controlled environment, ensuring optimal dynamic accuracy and durability. The spindle also features an air curtain ring spray function, a standard speed of 6000 RPM, and a high-power spindle oil cooler. Additionally, it comes standard with an M07 command program for automatic spindle chip control, a button-controlled side-blowing function, and a chip flushing function.

(6)   The rapid tool change mechanism employs a disk-type tool arm cam-driven transmission system, ensuring high-precision rotation and swift tool changes. The tool-to-tool change time is an impressive 3.5 seconds. Optional configurations include a 24-tool or 32-tool magazine. At our company, all tool magazines undergo extensive testing for stability, durability, and automatic tool changing before being released to the market.

(7)   The standard configuration of the numerical control system uniformly adopts FANUC Series Oi-MF Plus Type 1, a high-end product package, for optimal performance. Both the servo motors for each axis and the servo spindle motor adopt the absolute α series, ensuring the best possible performance.

(8)   The electrical cabinet is designed with a double-layer, rear-mounted isolation system, standardly equipped with a heat exchanger. Components that generate heat, such as servo amplifiers, servo power supplies, and other similar devices, are placed in a separate layer of the electrical cabinet, isolated from the main electrical box. This design effectively prevents dust from entering the main electrical box. Additionally, a heat exchanger and air filter are installed to maintain the electrical cabinet’s temperature at a constant level, ensuring optimal operation. High-quality imported electrical components are used to ensure durability and extend the lifespan of components, reducing the likelihood of failures. The PCB boards (relay boards) inside the electrical cabinet are designed as multiple sections, enabling sectional repair in case of faults, avoiding the need to replace the entire PCB board. Components with a higher failure rate are installed on the power distribution panel for easier access and maintenance. The interior of the electrical cabinet is neatly organized, easy to repair, and clearly labeled with wiring numbers, facilitating troubleshooting.

(9)   Standardly equipped with a 35KVA transformer and an oil cooling machine for the main spindle.

(10)          The water tank is designed as a rear overflow type, and there are two filter collecting box, by the double row of chips screw directly discharged into the filter collecting box, the operator only needs to pour out the chips in the collecting box, so it is more convenient to clean up, and make the whole workshop tidier and more space-saving. The water tank is equipped with a specific gravity oil-water separator, which can recover various lubricating oils and effectively separate the lubricating oil from the cutting fluid, thus avoiding the mixture of cutting fluid and oil and affecting the machining quality.

(11)          This series of LEADYANG machines are equipped the Z-axis with instantaneous power-off and pull-off function, which is the patented technology of LEADYANG.

(12)          LEADYANG optimizes the design of all CNC machine tools by utilizing finite element analysis, ensuring excellent rigidity and accuracy, and preventing deformation over long-term usage.