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- Mar 20, 2018 -
Classification of Lathes.The lathes are divided into several types depending on the purpose and function.
The general lathe has a wide range of machining objects, and the adjustment range of the spindle rotation speed and the feed amount is large, and it can process the inner and outer surfaces of the workpiece, the end face, and the internal and external threads. This type of lathe is mainly operated manually by the workers and has low production efficiency. It is suitable for single parts, small batch production and repair workshops.
The turret lathe and rotary lathe have a turret tool holder or a back knife holder that can hold a plurality of tools, and can be used by a worker to sequentially complete a variety of processes using different tools in one clamping of a workpiece, and is suitable for batch production.
The automatic lathe can automatically complete the multi-step processing of small and medium-sized workpieces according to certain procedures, and can automatically load and unload materials, and repeat processing of the same batch of workpieces, which is suitable for mass production and mass production.
Multi-tool semi-automatic lathes have single-axis, multi-axis, horizontal and vertical points. The single-axis horizontal layout is similar to that of an ordinary lathe, but the two sets of tool holders are mounted on the front and rear or upper and lower sides of the spindle, and are used to process discs, rings, and shafts. The productivity is improved by 3 to 5 times compared to a conventional lathe.
The copying lathe can automatically follow the shape and size of the template or sample to automatically complete the processing cycle of the workpiece. It is suitable for small batches and batch production of more complex shaped workpieces, and the productivity is 10-15 times higher than that of the ordinary lathe. There are multiple tool holders, multi-axis, chuck, vertical and other types.
The spindle of the vertical lathe is perpendicular to the horizontal plane, the workpiece is clamped on a horizontal rotary table, and the tool holder moves on the cross beam or the column. Suitable for machining larger, heavier, difficult to install on the general lathe, generally divided into two categories: single column and double column.
While the tooth turning lathe is being turned, the tool holder performs a radial reciprocating motion periodically, and is used for the shaping tooth surfaces of the fork-lift milling cutters, hobs and the like. Usually with a grinding attachment, a small grinding wheel driven by a separate motor grinds the tooth surface.
Special lathes are lathes used to machine specific surfaces of certain types of workpieces, such as crankshaft lathes, camshaft lathes, wheel lathes, axle lathes, roll lathes, and steel lathes.
Combined lathes are mainly used for turning machining, but after adding some special components and accessories, they can also be machined for boring, milling, drilling, inserting, grinding, etc., with the feature of “one machine with multiple powers” and suitable for construction vehicles, ships or mobile vehicles. Repair work on the repair station.