Bacci Twin, Use And Maintenance Instruction Manual

Page: 79 / 202

Chap. 3
- 9
/28 -
CHAPTER 3 – Machine description and technical data
3.7 Description of main units
3.7.1 Machine body (X-axis)
The machine body is made up of a strongly ribbed, stabilized steel structure, of considerable
section, to ensure maximum stiffness and straightness over time, under any load conditions.
On the machine body, the strut sliding guides along the X-axis are mounted [ 1 ].
3.7.2 Strut (Z-axis)
The strut ( 1 , Z-axis) is the set of devices that allow the tools to machine the workpiece.
It is made up of a support and movement structure for the revolving, spindle-holder machining
head [
2 ], on which the tools are mounted. The head slides along the vertical direction and rotates
around its A and B axes. Such rotating movements are continuous and interpolated, and are
controlled without any backlashes or periodical calibrations, by two precision gearmotors.
As for the linear axes, the sliding occurs on oversized roller bearings shoes, to ensure absolute
stiffness and reliability.
1
1
2