Working principle of vertical deep hole drilling

1. Raise questions

Now generally, CNC deep hole drilling machine in the process of processing are maintained a fixed rate of feed, the feed is by the processing program set in advance. In order to ensure the safety of production, programmers must set the feed rate according to the load limit condition, but in fact this condition may only account for 5% of the whole process. So how to improve the machining efficiency of CNC machine tools, optimize the amount of tool feed, and at the same time to automatically protect the machine tool spindle system and expensive tools from damage has become a problem of great concern to end users and machine tool manufacturers. In order to solve this problem, OMAT, an Israeli company, has applied adaptive control technology to CNC machine tools and developed a mature product -- OMAT adaptive system for CNC machine tools, which has been widely used in the world.

2. How it works

Adaptive control technology used in the numerical control processing, through the test of machine tool spindle load, by using expert system of internal signal acquisition of the main shaft load and the corresponding data analysis processing cutting tool and the workpiece material, machine tool good real-time calculated feed rate and applied to the nc machining process, thus greatly improve production efficiency, and stability in the machining process, the control of continuous, automatic feed rate, and to achieve dynamic tool protection function (as shown in figure 1).

CNC deep hole drilling

In the process of processing, the adaptive control system can learn and re-learn according to the input and output data of the control object, and continuously identify and modify the model parameters. As the production process continues, the model will become more and more accurate and closer to the reality. Finally, it will adjust itself to an optimal working state to realize the optimization of the processing process.