1, The type of machine
There are many kinds of machine tools. According to the statistics of the machining technician's manual, there are 77 typical types. Typical types are: instrument lathes, single-axis automatic lathes, multi-axis automatic or semi-automatic lathes, rotary or turret lathes, crankshaft and camshaft lathes, vertical lathes, floor and horizontal lathes, profiling and multi-tools, axles and There are many different types of forklift lathes, and the number is different. Vertical lathes and horizontal lathes are often used in our machinery industry. These types of lathes can be seen in almost all processing areas.
2, Machine tool processing range , We mainly choose several typical lathe types to introduce the processing range.
A: Horizontal lathe, can be used to rotate inner and outer cylindrical surface, conical surface, form rotating surface and annular groove, steering part and various threads, can drill , reaming, tapping, threading and knurling processing Process. Although the conventional horizontal lathe has a low degree of automation during processing and a long auxiliary time, the machine tool has been widely used and popularized in the processing industry due to its wide processing range and good comprehensive performance. It is one of the typical representative processing equipments in China's machinery industry and one of the indispensable processing equipment in the machining industry.
B: Vertical lathe, suitable for processing a variety of shell parts. It is also suitable for processing a wide range of parts. After the outer cylindrical surface, the conical surface, the end surface, the groove, the cutting and drilling, the expansion, and the reaming, the machining and grinding of the thread, the end face, the contour, and the like can be performed by an additional device.
3, Machining accuracy of lathe
The machining accuracy of the ordinary horizontal lathe is as follows: roundness: 0.015 mm; cylindricity: 0.02 / 150 mm; flatness 0.02 / ¢ 150 mm; surface roughness: 1.6 Ra / μm. B. The machining precision of the vertical lathe is as follows: roundness: 0.02 mm; cylindricity: 0.01 mm; flatness 0.03 mm.