Four-axis CNC machining center tools must adapt to the characteristics of high-speed, high-efficiency, and high degree of automation of CNC machine tools. Generally, they should include general-purpose tools, general-purpose connection tool holders and a small number of special tool holders. The tool holder must be connected to the tool and mounted on the power head of the machine tool, so it has gradually been standardized and serialized.
There are many ways to classify CNC tools.
According to the tool structure, it can be divided into:
①Integral;
②Inlaid type, using welding or machine clamp connection, machine clamp type can be divided into non-indexable and indexable two;
③Special types, such as composite cutters, shock-absorbing cutters, etc.
According to the materials used by CNC machining center manufacturers to manufacture folding tools, they can be divided into:
①High-speed steel cutter;
②Cemented carbide tools;
③Diamond tool;
④Tools of other materials, such as cubic boron nitride tools, ceramic tools, etc.
From the cutting process, it can be divided into:
① Turning tools, including outer circle, inner hole, thread, cutting tools, etc.;
②Drilling tools, including drills, reamers, taps, etc.;
③ Boring tool;
④Milling tools, etc. In order to meet the requirements of CNC machine tools for tool durability, stability, easy adjustment, and exchangeability, in recent years, machine-clamped indexable tools have been widely used, and the number has reached 30% to 40% of the entire CNC tools. Metal removal The amount accounts for 80% to 90% of the total.
Compared with the tools used on ordinary machine tools, CNC tools for four-axis CNC machining have many different requirements, mainly as follows:
⑴ Good rigidity (especially for rough machining tools), high precision, low vibration resistance and thermal deformation;
⑵Good interchangeability, convenient for quick tool change;
⑶ High life, stable and reliable cutting performance;
⑷The size of the tool is easy to adjust to reduce the tool change adjustment time;
⑸ Four-axis CNC machining tools should be able to reliably break or roll chips to facilitate the removal of chips;