Gantry milling machine, referred to as gantry milling machine, is a milling machine with portal frame and horizontal long bed. Gantry milling machine can use more milling cutter processing surface, processing accuracy and production efficiency are relatively high, suitable for processing large workpiece plane and inclined plane in batch and mass production. CNC gantry milling machine can also process spatial surface and some special parts.
The shape of longmen milling machine is similar to that of longmen planer, the difference is that its beam and column are not installed planer tool frame but with spindle box milling tool frame, and the reciprocating movement of longmen milling machine's longitudinal table is not the main movement, but the feed movement, and the rotary movement of milling cutter is the main movement.
Gantry milling machine has enough rigidity, high efficiency, easy operation, simple structure, full performance and other characteristics.
Its specific performance characteristics are different according to the type, model and manufacturer, and the technology used has a great relationship. Take SK series three axis CNC gantry milling as an example, its performance characteristics are:
1, vertical milling head TX400 heavy gantry milling head, double rectangular guide rail, strong rigidity;
2, milling head ball screw, pneumatic broach device, servo motor drive;
3. The side milling head is equipped with V5 type longmen milling head, equipped with independent lubrication device, the lifting is driven by ordinary reducer, and the frequency conversion speed regulation;
4, General milling/CNC milling one key conversion three axis CNC system, can be programmed to operate and can use the expansion panel manual operation, in the actual machining process to achieve strong;
5, bed back and forth, up and down the beam, vertical milling head and bottom are equipped with Taiwan ball screw, driven by servo motor;
6, with synchronous belt, synchronous wheel;
7, hand-held electronic handwheel unit, convenient three-axis knife;
8, the unique beam lifting and safety interlocking device, to ensure the repeated positioning accuracy of machine tools;
9, table cycloid pump group continuous lubrication, low failure rate.
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