Machine tool

Abstract

Disclosed is a machine tool comprising: a base having a mounting space in which a workpiece is mounted, shaft holes formed in opposite wall surfaces thereof, and a pair of first shaft sliding parts facing each other on opposite sides of the mounting space; a saddle coupled to the first shaft sliding parts of the base so as to slide on a first shaft and having a pair of second shaft sliding parts facing each other in a direction intersecting the first shaft; a crosspiece coupled to the second shaft sliding parts of the saddle so as to slide on a second shaft and having a pair of third sliding parts facing each other in a direction perpendicular to a plane on which the first shaft and the second shaft are formed; a vertical ram coupled to the third shaft sliding parts of the crosspieces so as to slide in a direction perpendicular to a plane defined by the first shaft and the second shaft and having a tool for machining the workpiece mounted at an end thereof; and a table disposed in themounting space of the base and installed on the base so as to be rotatable relative to the base through shaft holes of the base.

Description

technical field [0001] The present invention relates to a machine tool, and more particularly, to a machine tool having a simple structure because it is a monolithic type in which a base and a column are integrated, and capable of performing high-precision / high-speed machining by minimizing vibration and thermal displacement . Background technique [0002] Generally, a machine tool refers to a device that cuts a workpiece by moving in three axis directions relative to a spindle. Recently, although the shapes required for workpieces have become more complicated, there has been an increased need to improve productivity by minimizing the time for machining to be able to produce complex shapes in a short time. Therefore, in addition to three-axis machining, the demand for five-axis machining tools that can tilt and rotate the table is rapidly increasing. [0003] A five-axis machine tool, which generally includes: three linear axes X, Y and Z, which are arranged vertically at ...

AI Technical Summary

Problems solved by technology

When superimposed displacement occurs, it greatly affects the positioning accuracy between the tip of the tool mounted on the spindle and the machining center of the workpiece on the table, which is a major factor that deteriorates the quality of the workpiece

[0006] In addition, as the processing speed and cutting amount increase, this superimposed displacement is large and more irregularly generated, and there is a limitation in removing the superimposed displacement using only an additional device

Images