In CNC machine tool processing technology, the used tool

Cutting tool is used for cutting tools in machinery manufacturing, also known as the cutting tool.The vast majority of machine tool is used for, but also has a hand.Due to the cutting tools used in machinery manufacturing basically is used for cutting metal materials, so the word "tool" is generally understood as metal cutting tools.
Cutting tool selection is one of the important content in the nc machining process, not only affects the machining efficiency of machine tool, but also directly affect the machining quality of parts.CNC cutting tools is one of the prerequisite to enhance the efficiency of the machining, selection of it depends on the geometry of the parts processed material selection state, fixture and machine tool, cutting tool rigidity.
Different cutter in nc machining process in use is also different, so knife which is commonly used in nc machining process?
1. The tool
Tool is the most widely used in metal cutting processing of a cutting tool.It can be on the lathe machining cylindrical, flat end, threaded, inner hole, also can be used for cutting and cutting off, etc.Tool in structure can be divided into the whole tool, welding assembly tool and machine tool of fixed blade.Mechanical clamp fixed blade can be divided into the machine tool and indexable turning tool cutting tool.Mechanical clamping tool cutting performance is stable, workers don't have to sharpen, so more and more used in modern production.
2. Machining tool
Hole processing cutting tool can generally be divided into two categories: one is from the entity processing out of the hole of the cutting tool material, commonly used have a twist drill, center drilling and deep hole drilling, etc.;Another kind is already on the workpiece hole for rework tools, commonly used have reaming drill, reamer, boring cutter, etc.Under this standard, for example, the structure of the HSS twist drill.The front end of the working parts (blade) for cutting parts, the main cutting work, the back-end part as the guidance, role of guide bit, was a reserve part of the cutting part.
3. The milling cutter
Cutter is a kind of widely used rotary blade cutting tool, the type a lot.According to utility cent: 1) processing plane, such as cylindrical surface milling cutter, end mill, etc;2) processing groove, such as end mill, T knife and Angle cutter, etc.;3) with the surface of the processing and forming, such as convex and concave round cutter and surface processing and other complex forming milling cutter.Generally higher, the productivity of milling machining surface roughness value is bigger.
4. The broach
Broach is a kind of machining precision and the cutting efficiency is much higher gear cutting tools, widely used in mass production, processing all kinds of interior and exterior.Broach, in accordance with the processing of the workpiece surface is different, can be divided into various broach inside and outside two categories, broach.Using broach processing, in addition to choose according to the workpiece material blade rake Angle, Angle, based on the size of the workpiece machined surface (e.g., round hole diameter) determine the size of broach, also need to determine the two parameters: (1) the tooth Angle af [i.e. before and after the two blade radius or height of the group (or tooth) short];(2) pitch p [i.e. adjacent axial distance between two blade].
5. The gear cutting tools
Gear cutting tool is used for processing gear tooth shape of cutting tool.According to the working principle of cutting tool, the gear can be divided into forming gear cutting tools and generating gear cutter.Commonly used gear forming cutter has disc gear cutter and finger gear cutter, etc.Commonly used in gear knife with gear shaper cutter, the gear hob and gear shaving cutter, etc.When choosing the gear hob and gear shaper cutter, should pay attention to the following: (1) the basic parameters (modulus, tooth Angle, the addendum coefficient, etc.) should be the same as the processed gear.(2) cutting tools precision level should be gear machining requirements and accuracy level.(3) tool XuanXiangYing and machining gear spin to the same as much as possible.Roll cutting spur gear, general with sinistral serrated knife.