The main purpose of lathe found in the treatment of bodies of revolution by turning, and removing from them chips from them, this is the turning http://blueandgreytoday.com/product-category/lathes/. The use of additional special devices on machines (for grinding, milling, drilling of radial holes and other types of processing) significantly expands the technological capabilities of the equipment. With the help of them, the machine produces teeth cutting, grinding, milling and other types of processing. There are also special lathes on which you can handle products such as couplings, wheel sets and pipes. In the process of cutting on a lathe, the workpiece fixed in the chuck or in the centers rotates due to the drive of the main movement. It is able to regulate the frequency with which the spindle rotates step-by-step and steplessly to adjust to the speed required for cutting. The cutting tool moves translationally by means of a special kinematic chain, which includes a spindle (first link) and a rack-and-pinion gear (the last link). The second option is the movement due to a pair, which consists of the master nut and the lead screw. When using the feed box, you can easily adjust the feed. The spindle unit, whose bearings, as a rule, are roller bearings, produce a rigid and vibration resistant. A chuck or faceplate for setting the workpiece is located at the front end of the spindle, and the tailstock is used when processing billets in the centers, or for securing the tool when reaming, drilling and unfolding. The drive of the main movement of the lathe can include an adjustable DC motor, a multistage speed box, a mechanical variator asynchronous motor, a gear box. In some lathes, hydraulic, or other drives can be used.
