5 Axis Gantry Machining Center

GMC2720 uses a precise AC dual-swing angle milling head, including an A-axis + -95° and C-axis 360° continuously rotatable version that has achieved the highest precision of ±0.0015° in repeatability[1][5]. The Design can perform five sides' operation once the clamping is completed; complex three-dimensional workpiece processing can be Realize; Non-processing time accounts for about 50% less than that of a Three-axis or four-axis machine. Milling heads use torque motors for direct driving and have cross-roller bearings; They are highly stable in rotation, capable of withstanding high loads efficiently to ensure good dynamic characteristics without leading to surface defects due to a zero-linear-speed vertex state issue when using old-style technology.

This design employs a gantry layout that is more favourable to light-weighting and compactness; furthermore, there is faster dynamic-servo-response speed . A large workspace of 2300x4000 mm has been provided, which can bear up to 12 tons; The travel distance of the three coordinate axes is 4000*2700*1000 mm, and the gantry size is 2700mm x 1200mm. The main parts of this project include the beams, bridges frames and beds, all made from resin products with high quality; Using qualified HT300 gray cast iron as raw material for manufacture can provide better processing properties.

A 30 kw high torque electric spindle (optionally a 54kw) is equipped; The spindle maximum speed can reach up to 10000 rpm and low-speed continuous operation for long periods. The spindle is cooled by forcing circulation, uses an oil-gas Lubrication Method to maintain lower temperatures for stable Operation reliability. A column-type thermal-shielding structure and guide rail-area temperature-control system have been adopted in this design to reduce geometric deviations resulting from variations in temperature or wear on machinery components through laser-on-line measurement and space-error-correction technologies . It is generally provided with a 24 station arm-type tool magazine (optional 32 stations), and the tool-change speed reaches as fast as two-point-eight seconds per piece.

It has been equipped with a high-performance CNC system (optionally Fanuc-31B-Siemens-Micro Eight), supporting multiple axis operations, RTCP technology is also available for use in combination, along with DNC real-time control functionality during offline editing of the program. There is a modular Design for the machine, with available options including an automatic Tool-Setting System, A high power Dust-Removal System; And Robot Automatic Loading-and-Unloading Systems To suit Different Processing Requirements . It has obtained CE, ROHS and ISO9001 certifications, OPC UA is an open-standard Interface for easy interoperability between the intelligent Workshop management System and the Factory MES system.