High-speed intermittent ultrasonic vibration cutting method for low-rigidity parts

Abstract

The invention discloses a high-speed intermittent ultrasonic vibration cutting method for low-rigidity parts. The high-speed intermittent ultrasonic vibration cutting method is a novel machining method for cutting the low-rigidity parts by ultrasonic longitudinal vibration cutting technology. The machining method is implemented by the aid of an ultrasonic longitudinal vibration cutting device, an intermittent cutting process principle is supplemented, accordingly, follow-up working procedures of turning / boring, ageing treatment and grinding in a traditional machining method are omitted, cutting speed is greatly increased, machining time is shortened, machining efficiency is improved, and high-speed, high-efficiency and high-quality machining of the low-rigidity parts which are machined difficultly can be realized by the aid of the machining method.

Description

technical field [0001] The present invention relates to a method for high-speed machining of parts with weak stiffness using ultrasonic vibration cutting, more particularly, a method for intermittent, high-efficiency and high-quality cutting of parts with weak stiffness using longitudinal ultrasonic vibration technology . Background technique [0002] In the field of mechanical manufacturing, there are a large number of weak stiffness parts processing, such as large diameter deep hole long axis (outer diameter D greater than 200mm, length L greater than 1000mm, hole depth h greater than 500mm) outer circle turning, thin-walled disc (outer diameter and The minimum wall thickness ratio is greater than 200) face turning processing, deep hole shaft (depth-to-diameter ratio greater than 50) inner hole boring processing, etc. These parts have complex shapes, large allowances, and difficult-to-cut materials; high precision and surface quality requirements, and During the cutting p...

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Problems solved by technology

[0002] In the field of mechanical manufacturing, there are a large number of weak stiffness parts processing, such as large diameter deep hole long axis (outer diameter D greater than 200mm, length L greater than 1000mm, hole depth h greater than 500mm) outer circle turning, thin-walled disc (outer diameter and The minimum wall thickness ratio is greater than 200) face turning processing, deep hole shaft (depth-to-diameter ratio greater than 50) inner hole boring processing, etc. These parts have complex shapes, large allowances, and difficult-to-cut materials; high precision and surface quality requirements, and During the cutting process, it is easy to deform and chatter under the action of cutting force and cutting heat, so it greatly affects the machining accuracy and surface quality of the workpiece

[0003] Due to the special processing mechanism of the elliptical vibration cutting technology, although it can reduce the cutting force, reduce the cutting temperature, improve the ultimate cutting ability and processing quality, but because the cutting line speed is very small (generally 4-6 m / min), it is especially difficult to process large-diameter Rotary parts, the efficiency is very low, so it is greatly limited in practical application

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