JP2010110890A5

JP2010110890A5 -

Info

Publication number: JP2010110890A5
Application number: JP2009289508A
Authority: JP
Filing date: 2009-12-21
Publication date: 2010-07-29
Anticipated expiration: 2023-07-18

Claims

In a vertical machining center that processes a workpiece mounted on a table,
It has a tool attachment part at the tip, has a main shaft that can move in the Y-axis direction and Z-axis direction with respect to the main body of the device, but cannot move in the X-axis direction,
The main axis moves only on a single YZ plane defined by the Y-axis direction and the Z-axis direction along which the rotation center axis of the main axis moves,
A turntable having a horizontal workpiece mounting surface that rotates only in the C-axis direction and disposed on the front side of the apparatus body;
An automatic tool changer disposed behind the turntable on the device main body side and having a tool change position on the single YZ plane,
The apparatus main body includes a head that supports the main shaft, a column that supports the head, and a base that supports the column.
The base is formed in a gate shape and has a space penetrating in the Y-axis direction,
The automatic tool changer is disposed in the space;
The column is supported on the upper part of the base so as to be movable in the Y-axis direction via a pair of guide rails formed on the upper part of the base .
The pair of guide rails are laid in the vicinity of both ends in the X-axis direction of the base toward the Y-axis direction,
Y provided on the upper part of the base in the Y-axis direction on the single YZ plane and movably provided in the Y-axis direction through a nut supported by the lower surface of the column Has a ball screw for the shaft,
In the automatic tool changer, a disk-shaped tool magazine is rotatably arranged, and a tool holding portion is formed in the vicinity of the outer periphery of the tool magazine.
The rotation center axis of the main shaft, the rotation center axis of the turntable, and the rotation center axis of the tool magazine are all parallel to the Z axis, and both the rotation center axis and the tool change position are the single Y- Arranged on the Z plane,
Based on the rotation of the turntable in the C-axis direction and the movement of the rotation center axis of the main shaft on the single YZ plane in the Y-axis direction and the Z-axis direction, And a relative movement in the Y-axis direction and the Z-axis direction on the single YZ plane between the rotation center axis of the main shaft and the rotation center axis of the tool magazine, Tool exchange is performed between the spindle and the automatic tool changer.
Machining center characterized by that.

The screw shaft of the Y-axis ball screw is supported via support portions formed on the front side and the rear end of the base upper part,
At the rear end of the screw shaft, a Y-axis servo motor is connected to the rear of the support portion formed at the rear end of the base upper portion so as to protrude rearward from the support portion.
The machining center according to claim 1, wherein:

The machining center according to claim 1, wherein the automatic tool changer is configured to be movable in the Y-axis direction.

A slide base for moving the turntable in the Y-axis direction;
The machining center according to claim 3 .

The machining center according to any one of claims 1 to 4 , wherein the tool magazine has a diameter that is substantially the same as an occupied width of the base in the X-axis direction.