Machine tool tailstock of center rotating structure

Abstract

The invention discloses a machine tool tailstock of a center rotating structure, and belongs to the technical field of machine tool tailstocks. The machine tool tailstock comprises a tailstock shaft,the circumferential outer wall of the tailstock shaft and a base are mounted and fixed through a linear bearing, a sealing ring sleeves the left side of the circumferential outer wall of the tailstockshaft, an end cover is fixedly mounted on the left side of the top of the tailstock shaft through bolts, an air inlet joint is connected between the end cover and the base, the left end of the tailstock shaft and a rotating center are fixedly mounted through a rotating bearing, a bearing outer ring compressing cover is connected to the left side wall of the rotating bearing in a clamped mode, andthe right side wall of the rotating bearing and the bearing outer ring compressing cover are fixedly mounted through locking nuts and tightening screws. The machine tool tailstock of the center rotating structure is reasonable in design and high in practicality, the influence of the precision of part center holes and a tailstock center on the machining precision of shaft parts is avoided, drivingmoment during part machining is lowered, and energy consumption is reduced; and the service life of the bearing is prolonged, and the using cost of equipment is lowered.

Description

technical field [0001] The invention relates to the technical field of machine tool tailstocks, in particular to a machine tool tailstock with a top rotating structure. Background technique [0002] A machine tool refers to a machine that manufactures a machine, also known as a machine tool or a tool machine, and is customarily referred to as a machine tool. Generally divided into metal cutting machine tools, forging machine tools and woodworking machine tools. There are many ways to process mechanical parts in modern machinery manufacturing: in addition to cutting, there are also casting, forging, welding, stamping, extrusion, etc. The final machining is done by cutting on the machine tool. Machine tools play a major role in the modernization of the national economy. Lathes are machine tools that mainly use turning tools to turn workpieces that rotate. Drills, reamers, reamers, taps, dies and knurling tools can also be used for corresponding processing on the lathe. Lat...

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Problems solved by technology

[0003] The object of the present invention is to provide a machine tool tailstock with a top rotating structure to solve the problem that the processing accuracy proposed in the above background technology is directly affected by the precision of the center hole and the top of the tailstock, resulting in low precision and poor quality of shaft workpieces. Poor, and the overall airtightness of the tailstock on the current shaft processing equipment is poor, which reduces the service life of the tailstock

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