Symmetrically supported rotary tool head

Abstract

The invention relates to a symmetrically supported rotary tool head, which includes a bracket, an externally rotatable support wheel shaft, an internally rotatably supported wheel shaft, an external friction drive wheel shaft, an internal friction drive wheel shaft, a tool wheel frame, a plug, a tool head, etc., and is characterized in that: externally rotate support The wheel shaft and the inner rotation support wheel shaft appear in pairs; the outer friction drive wheel shaft and the inner friction drive wheel shaft appear in pairs; the outer raceway and the inner raceway on the tool wheel frame are respectively supported by the outer rollers on the outer rotation support wheel shaft and the inner rotation support wheel shaft On the raceway and the inner roller raceway, and contact with the outer friction roller raceway and the inner friction roller raceway on the outer friction drive wheel shaft and the inner friction drive wheel shaft. By adopting the present invention, the rotary tool can obtain a higher processing line speed at a lower rotational speed, break through the limitation that the small-sized geometric features on the part must be processed by tools of the same or smaller size, and obtain better processing quality and higher tool life.

Description

technical field [0001] The invention relates to a symmetrically supported rotary tool head, which belongs to the field of mechanical processing equipment. Background technique [0002] The R&D, manufacturing and application of industrial robots is an important symbol to measure the strength and level of a country's technological innovation and high-end manufacturing. In the next few years, the domestic demand for more than 2.4 million industrial robots accounts for about 70% of the world's total demand. Calculated in ten thousand yuan, the market size of industrial robots exceeds 720 billion yuan. However, at present, about 90% of domestic robots use imported precision reducers, and some imported precision reducers account for nearly 1 / 3 of the total cost of robots, which is one of the bottlenecks restricting the development of my country's robot industry. A crucial reason for this phenomenon is that the internal tooth surface grinding machine tools required for precision r...

AI Technical Summary

Problems solved by technology

However, at present, about 90% of domestic robots use imported precision reducers, and some imported precision reducers account for nearly 1 / 3 of the total cost of robots, which is one of the bottlenecks restricting the development of my country's robot industry.

A crucial reason for this phenomenon is that the internal tooth surface grinding machine tools required for precision reducers in my country have outstanding problems such as low grinding line speed, poor grinding accuracy, and low grinding efficiency, which have caused precision reducers Low precision, high noise, short life

The key problem is that the inner tooth surface is a closed curved surface, and the processing tool used must be smaller than the diameter of the addendum circle, which results in a small tool, which makes it very difficult to achieve the required processing speed, and also causes excessive wear of the tool. Induces excessive cost and loss of precision

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