The machine tool body is the mechanical structural entity of the stone engraving machine, mainly including main moving parts, feed moving parts (such as workbench, tool rest), and supporting parts (such as bed, column, etc.). In addition, CNC machine tools such as stone engraving machines are also equipped with supporting devices such as cooling, lubrication, indexing parts, tool setting and measurement. Compared with ordinary machine tools, CNC machine tools have undergone great changes in overall layout, appearance, transmission mechanism, tool system and operating mechanism. The purpose is to meet the requirements of CNC technology and give full play to the characteristics of stone engraving machines.
To sum up, it includes the following aspects:
1).The stone CNC engraving machine adopts high-performance main drive and main shaft components. It has the advantages of large transmission power, high rigidity, good vibration resistance and small thermal deformation.
2).The feed drive of the stone engraving machine adopts high-efficiency transmission parts. It has the characteristics of short transmission chain, simple structure, and high transmission precision. Generally, ball screw pairs and linear rolling guide rail pairs are used.
3).Stone CNC engraving machine has a complete automatic tool exchange and management system.
4).Stone CNC engraving machines generally have automatic workpiece exchange, workpiece clamping and loosening mechanisms on the machining center.
5).Stone engraving CNC machine tool itself has high dynamic and static stiffness.
6).The stone engraving machine adopts a fully enclosed casing. Since the stone engraving machine tool completes the processing automatically, in order to operate safely, a fully enclosed casing with a movable door structure is generally used to fully seal the processing parts of the machine tool. For semi-closed-loop and closed-loop stone engraving machines, there is also a detection and feedback device, which is used to detect the actual movement speed, direction, displacement and processing status of the machine tool, and convert the detection results into electrical signals for feedback to the CNC device. Detection and feedback devices mainly include inductive synchronizers, gratings, encoders, magnetic gratings and laser range finders.
