Talking about the technical trend of intelligent machine tool

The high-end CNC machine tools and basic manufacturing equipment "Technology Major Specialized Implementation Management Office", through profound research, systematically proposed the technical trend of machine tool intelligence:

The first is to monitor the intelligence of the working state of the machine tool.

In the monitoring of the working state of the machine tool, the intelligent progress of the spindle is most obvious. The height of the spindle is realized by the sensing system equipped with the temperature sensor and the load displacement sensor.

Here, the MEMS temperature sensor is used to monitor the lubrication condition of the bearing, prevent the bearing from sintering and correct the thermal displacement of the spindle. The load displacement sensor is used to detect the abnormal load in the machining, monitor the bearing load and infer its life, and avoid bearing damage. Because the spindle is close to the workpiece machining position, it is more suitable for accurately monitoring the machining state of the machine. However, installing the sensing system in the limited space of the spindle is not simple, and there are still many problems. For example, by installing an FBG sensor (strain sensor) in the structural material to detect the thermal displacement of the structure, the thermal displacement mode of the machine structure is judged and corrected, and the temperature distribution control of the main structure is performed to minimize thermal deformation.

In addition, the temperature and spindle operation information of several monitoring points in the machine structure are used, and the relative thermal deformation between the tool and the workpiece is corrected by the CNC command.

The second is to monitor the intelligence of the maintenance status. In order to reduce the load on the maintenance work, it is necessary to have a system to take countermeasures before a large failure occurs, so it is very important to perform regular monitoring of the maintenance status. Accumulating historical data of the working state of the machine tool and predicting the life based on this, and detecting the life in the working state, can be said to be a future issue.

The third is to ensure the security of security. The latest intelligent technology to ensure safety is a technology to avoid collisions. Interference checks can be performed through procedures, during exercise, and while preparing for work.