The structure of the gantry machining center

1. worktable ---- The worktable of the gantry Machining Center is basically rectangular. The large castings such as worktable, bed, column, beam and ram are made of Meehanite cast iron, and the inner cavity of the casting is honeycomb-like composite structure. The design is advanced and aging and secondary tempering, eliminating residual internal stress and ensuring material stability. Stable workpiece machining accuracy and machine life.

2, gantry ---- gantry consists of a beam and two columns. It is divided into three types: the beam is fixed, the beam is locked by the positioning block, and the beam is lifted and lowered.

3, ram-----The ram can be divided into two types: open and closed. The ram of the open structure is clamped on the headstock by the pressure plate, and the ram of the closed structure is large; the ram of the closed structure is clamped in the headstock, and the sectional area of the ram is small.

4. Tool magazine ------The basic types of tool magazines are turret type, drum type and chain length type.

5, the attachment head library ------ large complex parts processing usually requires a lot of attachment heads. The attachment head is specially designed according to the processing requirements of the workpiece, and is generally divided into a right angle head, an extended head, a special angle head and a universal head.

6. CNC system ----- CNC system generally adopts SINUMERIK840C and 840D of SIEMENS of Germany or 15th and 16th series of CNC axes of FANUC of Japan adopt full-closed control.

7. Accuracy ------The accuracy of the machine tool refers to the original accuracy of the machine tool under the condition of no external load. Accuracy is usually expressed by its inverse—the deviation from the ideal state (abbreviated as error), and the smaller the error, the higher the accuracy.