Afming Five-axis CNC Machine Fixed-beam Gantry GMU-400

How About our Five-axis CNC Machine GMU-400？

The GMU400 five axis cnc machine adopts a high-rigidity fixed-beam gantry structure, which achieves machining performance and contour accuracy under high-dynamic conditions with high precision, high performance, and high efficiency. More importantly, GMU400 five axis machine center also equips the GTRT drive cradle technology, presenting high torque outputs of 1056 Nm on the A-axis and 430 Nm on the C-axis. From various difficult to cut materials to mold manufacturing with high surface quality requirements and even product contour accuracy, the GMU400 cnc machine is capable of handling them.

Five-axis CNC Machine GMU-400 Advantages

1, BAS Part Accuracy Testing

2, GTRT Gear Transmission Rotary Table Technology

The GMU-400 five axis cnc machine center has adopted the GTRT gear transmission rotary table technology for the first time in its class. Compared to the conventional rotary table drive ones, it can present greater torque output, higher rigidity, higher stability and better rotation precision.

European high-end gear transmission design concept

• AFMING gear anti-backlash patented technology
• A/C rotary table supported by two arms for high rigidity, strong load bearing, and high accuracy
• DIN5 grade imported ground gear technology
• Applicable to the processing of a wide range of materials, including steel, titanium alloy, and other high-hardness and high-tenacity materials
• A/C axis standard equipped with 0.5μm circular grating
• Easier chip removal and cleaning
• Having advantages of high torque, high accuracy, low energy consumption and long service life compared to DDR, worm wheel, worm, and roller cam drive modes

GTRT gear transmission rotary table A-axis: Servo motor + DIN5 grade grinding gear (two-stage anti-backlash patented technology) C-axis: Servo motor + DIN5 grade grinding gear (two-stage anti-backlash patented technology)

Travel (A/C): ±120°/360°

Maximum RPM (A/C): 20/30rpm

Maximum torque (A/C): 1056 /432

N.m Accuracy (A/C): 8″/4″

Bearing capacity: 120kg

3, High Rigidity Fixed-beam Gantry Bed Structure

A fully-optimized fixed-beam gantry bed structure with all major components set up with a large number of bars and stiffeners combined with a thermally symmetrically balanced machine structure to guarantee the good rigidity, high torsional strength, thermal stability, and high guide rail accuracy of the five axie cnc machine tool.

4, Finite element analysis combined with dynamics optimization 

Finite element analysis of bed components to ensure the ultimate performance and consistency of optimized structural rigidity and torsional rigidity.

Accurate calculation of the optimum dynamic rigidity under the actual working conditions to ensure the good cutting performance of bed structure and enable the bed to maintain toughness, rigidity, high accuracy, and vibration suppression even under heavy cutting conditions.

Precise calculation of the minimum cross compliance between the tool nose and the workpiece under actual working conditions to improve the chatter limit of high-speed milling of the five axis cnc machine tool and realize high- speed and high-accuracy machining efficiency.

Improved inherent frequency of the mechanical feed system and improved cut-off frequency of the electromechanical drive system to improve the value of position loop gain KV, shorten the positioning time, and reduce the lag of the feed system, thereby realizing high-response dynamic performance and high-speed and high- accuracy machining performance.

Highlights

• Moving parts optimized in terms of weight to achieve perfect dynamic performance.
• Z-axis optimized in terms of mechanics and dynamics to gain 30% more rigidity and dynamics than similar models.
• Extra-large area of vertical column base to provide stronger rigidity and stability.
• Finite element analysis, calculation and optimization of whole-machine structure and moving parts to achieve high milling efficiency, high machining performance, and extreme accuracy.
• First-order natural frequency of the whole machine up to 67HZ, which has greatly improved the anti-seismic performance and the static and dynamic rigidity of the machine tools.
• Three-axis acceleration up to 1.2G.

5, 20000 rpm Electric Spindle

GMU400 Application

Application fields: + Automobile industry + Mold industry + Medical device + Optical lens

GMU400 five-axis CNC Machine Technical Specification

Standard configuration

Options configuration

Machine arrangement diagram: