In the main Machining process, there are CNC Machining, CNC turning, Auto lathe turning,CNC Milling, Stamping, Sheet metal fabrication, Casting, Injection molding etc
Namely lathe processing, lathe processing is a part of mechanical processing. The lathe mainly uses the turning tool to carry on the turning processing to the rotating workpiece. Can also be used on the lathe drill, reamer drill, tap, die and knurled tools for processing. Lathes are mainly used for machining shafts, discs, sleeves and other workpieces with rotary surfaces. They are the most widely used machine tools in mechanical manufacturing and repair factories.
1. It is easy to ensure the precision of the workpieceundefineds machining surfaces
a for example, to ensure the coaxiality of the workpiece is to install the workpiece with the chuck, the rotary axis is the top of the lathe spindle before and after the use of the rotary axis, The axis of rotation is the center line of two centers
b which is easy to ensure the perpendicularity of the end face and axis from the horizontal slide guide rail to the vertical degree of the rotary axis of the workpiece.
2. The cutting process avoids inertia force and impact force more smoothly. Allow to use larger cutting parameters, high speed cutting, conducive to productivity increase.
3. The surface roughness of non-ferrous metal parts is small, which is suitable for finishing non-ferrous metal parts, so it is not suitable for grinding, and needs turning or milling, etc. High quality can be achieved when using diamond turning tool to carry out fine car.
4, the tool simple turning tool manufacture, sharpening and installation are more convenient.
Different turning tools or other cutting tools can be used in lathe to process various rotary surfaces, such as inner and outer cylindrical surfaces, inner and outer conical surfaces, threads, groove turning grooves, end faces and forming surfaces, etc. The machining accuracy is up to IT8-IT7. The surface roughness Ra value is 1.6? 0. 8. Turning is often used to process single axis parts, such as straight axis and general disk, sleeve parts and so on. If the installation position of the workpiece is changed or the lathe is modified properly, the multi-axis parts (such as crankshaft, eccentric wheel, etc.) or the disc cam can be machined. In single-piece small batch production, various kinds of shaft, disc, sleeve and other parts are mostly processed by horizontal lathe or CNC lathe with wide adaptability; large parts with large diameter and short length (length to diameter ratio of 0.3 to 0.8) are mostly processed by vertical lathe. The turret lathe should be used when producing small and medium shafts with inner holes and threads in batch production. In large quantities, small parts with less complicated shape, such as screws, nuts, pipe joints, shafts, etc., are often processed by semi-automatic and automatic lathes. It has high productivity but low precision.