Double-mandrel direct-connection precise rotating shaft

Abstract

The invention discloses a double-mandrel direct-connection precise rotating shaft. The double-mandrel direct-connection precise rotating shaft comprises a main mandrel and a mandrel, wherein the mandrel penetrates and is fixedly connected with a wave generator of a harmonic reducer, the large end of the main mandrel is fixedly connected with a flexible gear of the harmonic reducer, a rigid gear of the harmonic reducer is fixedly connected with a B shaft outer cover, a first contact ball bearing and a second contact ball bearing are fixed on the inner side of the B shaft outer cover, which is close to the harmonic reducer, a third contact ball bearing and a fourth contact ball bearing are fixed on the inner side of the B shaft outer cover, which is far away from the harmonic reducer, inner rings and outer rings of the first, second, third and fourth contact ball bearings are connected with inner and outer ring sleeves respectively, and a first flange and a second flange are disposed at two ends of the B shaft outer cover. According to the double-mandrel direct-connection precise rotating shaft, two mandrels are arranged inside, and the small mandrel drives the large mandrel through the harmonic reducer.

Description

technical field [0001] The invention belongs to the field of numerical control machine tools and precision motion platforms, and in particular relates to a precision rotating shaft. Background technique [0002] With the continuous development of CNC technology, in order to pursue high-speed and high-precision CNC machining effects, many key core components are used in the field of CNC machine tools. Precision rotating shafts (spindles), as essential core components of CNC machine tools, are widely used In ultra-precision machining CNC machine tools. At present, the precision rotary shafts (spindles) dedicated to CNC machine tools are mostly imported in China (Taiwan, Japan, Europe, etc.), but most countries restrict the use of certain high-speed precision rotary shafts (spindles) for the sake of core technology protection. China export. [0003] These imported precision rotating shafts (spindles) have high prices, long lead times, complex structures, and inconvenient main...

AI Technical Summary

Problems solved by technology

At present, the precision rotary shafts (spindles) dedicated to CNC machine tools are mostly imported in China (Taiwan, Japan, Europe, etc.), but most countries restrict the use of certain high-speed precision rotary shafts (spindles) for the sake of core technology protection. China export

[0003] These imported precision rotating shafts (spindles) have high prices, long lead times, complex structures, and inconvenient maintenance after components are damaged, and because they are all introduced as standard parts, it is difficult to flexibly change the design according to specific applications and meet Specific application occasions, these have greatly restricted the smooth progress of independent projects

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