Generally, there are a series of letters and numbers on the NC blade as the model of NC blade. It is very simple for professionals to understand the meaning of these letters and numbers, but it is very difficult for ordinary people. In fact, we only need to master the meaning of some basic numbers and letters, for example, the first letter represents the shape of a leaf. The model of NC tool can be divided into three categories: cutting material, cutting structure and cutting process. Next, this paper will briefly introduce how to treat CNC tool models and tool model types. Let's have a look! 1. What do you think of the specifications and models of CNC tools?

Tools can be divided into metric system (ISO) and English system (ANSI). The main difference lies in the middle number, and different tools have different representations.

For example:

ISO:CNMG 120408PS

CNMG432PS

Every letter and number has a representative meaning:

1, the first letter represents the shape of the blade, and the metric system is the same as the English system. H: hexagon 120, o: octagon 135, p: pentagon 108, s: square 90, t: triangle 60, c: diamond 80, d: diamond 55, e: diamond 75.

2. The second letter represents the back angle of the blade, and the metric system is the same as the English system. A:3、B:5、C:7、D: 15、E:20、F:25、G:30、N:0、P: 1 1。

3. The third letter represents the tolerance of the blade. Metric and English are the same, and the tolerance varies according to the size of the blade.

4. The fourth letter represents the symbol of the hole/chip breaker. There are many kinds of this, so I won't elaborate on them one by one. Only two commonly used ones are selected. Generally, cylindrical blades are all G-shaped (with holes and chip-breaking grooves on both sides), and boring cutters are mostly T-shaped (with holes, single countersunk holes and chip-breaking grooves on one side).

5. The fifth number, ISO stands for cutting edge length and ANSI stands for inscribed edge diameter.

6. The sixth digit represents the thickness, with ISO in millimeters and ANSI in inches.

7. The seventh digit represents the angle of the tool tip, with the ISO unit being mm and the ANSI unit being inches.

8. The last two letters represent arbitrary symbols, such as main cutting edge symbol and chip breaker symbol.

In addition, the suffix numbers and letters will continue, such as: VP 15TF, which represents the material of the tool. Different brands of tools have different material numbers.

Second, what are the types of CNC tools?

1, according to the material of the cutting part of the tool.

According to the materials of cutting parts, tools can be divided into high-speed steel tools, cemented carbide tools, ceramic tools, cubic boron nitride tools, diamond tools and coated tools.

2. According to the structure of the tool.

According to the structural form of tools, they can be divided into integral, mosaic and special forms.

(1) integer type

Integral type includes drill bit and end milling cutter.

(2) Mosaic type

Mosaic includes welding and mechanical clamping of blades.

(3) Special form

Special forms include compound type and damping type.

3, according to the tool cutting process

According to the cutting process, it can be divided into turning tool, milling cutter, drilling tool and boring tool.

(1) turning tool

Turning tools include cylindrical turning tools, internal turning tools, grooved (broken) turning tools, end turning tools and threaded turning tools.

(2) Milling tools

Milling cutters include face milling cutters, end milling cutters and thread milling cutters.

(3) Drilling tools

Drilling tools include drills, reamers and taps.

(4) Drilling tools

Boring tools include rough boring tools and fine boring tools.