Door frame structure determines to the CNC gantry machining center characteristic is high rigidity, good shock absorption ability, extends to the cutting power is turning on, good precision and dimension stability. For large complex workpiece, drilling, milling, boring of the combined processing , CNC gantry machining center is the first choose .
Small CNC gantry machining center gradually popular in market , also pose a threat to large size vertical type machining center "匚" type status.
Past, including now, many enterprises gantry machining center as the plant treasure, image ambassador not easily use general occasions. This is a big mistake. Machine tools need to continue to use can ensure the stability of performance, the continual drive is not convenient to machine maintenance, also influence the stability of the machine tool. This and athletes need through continuous training to maintain status is the same reason. Gantry machining center reflected in the use value and function. Gantry machining center relative price is higher, the applicability of the purchasing function should be fully considered when, versatility and cost performance.
1,Gantry framework
Gantry machining center based on gantry framework can be divided into different determinate beam gantry machining center, the moving beam gantry machining center, using the beam gantry machining center, dynamic column column beam gantry machining center four classes. Gantry framework made up of columns and roof beam, if it is moving beam and beam. Columns and beams is the most ideal overall and sectional will exist stress deformation and fracture of concern. The material of columns and beams and width directly determines the overall rigidity of the machine tool.
Determinate beam gantry machining center: fixed columns, workbench doing X to move, the spindle on the fixed beam do Y to mobile, Z spindle ram do to the sport. Z to relatively high precision. Top beam with straight beam and inclined beams.
Moving beam gantry machining center: fixed columns, workbench do X to mobile, making Z beam in support to mobile, do Y to mobile spindle on the beam. Z to slightly lower precision, suitable for processing large height of the workpiece.
Dynamic column fixed beam gantry machining center: do X to the mobile column, table, spindle on the fixed beam to move, do Y Z spindle ram do to the sport. Z to the relatively high precision, suitable for long workpiece or giant artifacts.
Move the column beam gantry machining center: column do X to mobile, workbench, beam on column Z to mobile, do Y to mobile spindle on the beam. Z to slightly lower precision, suitable for processing large height of package or giant artifacts.
