Axes | Positioning Accuracy | Repeatability |
---|---|---|
X / Y / Z | 0.010 mm(0.004") | 0.006 mm(0.002") |
W | 0.015 mm(0.006") | 0.010 mm(0.004") |
2-1. Bed type
Bed type refers to the boring machine with a table on the bed, the table forms the X or Z axis. Unlike this, the floor type is a structure composed of column forming the X-axis and other moving axes on the column. The bed types are further divided into table type, planer type, and reversed-T type.
The bed is equipped with a saddle to form the Z-axis, and the saddle is equipped with a table to form the X-axis. The column is fixed, and the milling spindle head is mounted on the column to form the Y-axis and moves up and down.
The bed is directly equipped with a table to form the X-axis, and the column is mounted on the bed to form the Z-axis. The milling spindle head is mounted on the column to form the Y-axis and moves up and down.
The bed is directly equipped with a table to form the Z-axis, and the column is mounted on the bed to form the X-axis. The milling spindle head is mounted on the column to form the Y-axis and moves up and down.
The column is mounted on the bed to form the X-axis, while the slide is mounted on the column to form the Y-axis and moves up and down. The ram is mounted on the slide, forming the Z-axis. The table and main machine are structurally separated.
A horizontal boring machine with a table as the center and a symmetrical arrangement of milling spindles.
The main difference between a horizontal boring machine and a horizontal machining center is the presence of the W-axis. The W-axis refers to the axis where the spindle or a portion of the spindle extends in the Z-direction. Many different kinds of machining, including boring, can be performed using the W-axis.
The W-axis can be selected among a boring sleeve, a quill, and a ram. In some machines, both the boring sleeve and the ram can be used simultaneously, where the boring sleeve consists of the W-axis and the ram consists of the Z-axis or W2 axis.
3-1. boring sleeve