Precise ultrasonic punch and tool head angle adjusting method thereof

Abstract

The invention discloses a precise ultrasonic punch and a tool head angle adjusting method thereof. The precise ultrasonic punch comprises a frame, a guide rail, a slide block, an ultrasonic vibration system, a tool head, a feeding system, an angle adjusting device and a displacement sensor; the angle adjusting device comprises an X-axle angle micropositioner and a Y-axle angle micropositioner; the ultrasonic vibration system is mounted on the Y-axle angle micropositioner; the angle of the ultrasonic vibration system and the angle of a tool head can be adjusted through the angle adjusting device; the displacement sensor is mounted on the frame for detecting the difference of two measured values of the displacement sensors before and after movement of the tool head and the feeding quantity of the tool head along the guide rail; and the angle of the tool head is adjusted through the angle adjusting device according to the difference of the two measured values and the feeding quantity. The precise ultrasonic punch has the following advantages: the tool head can be precisely adjusted, so that the axis of the tool head is parallel to the guide rail, the punching precision is effectively guaranteed, and the effect of protecting the tool head is achieved.

Description

technical field [0001] The invention relates to a punching device, in particular to a precision ultrasonic punching machine and a method for adjusting the angle of a tool head. Background technique [0002] Hard and brittle materials such as sapphire, glass, and engineering ceramics have good mechanochemical properties, and are often used to manufacture precision components, and have been widely used in optics, aerospace, semiconductors, and other fields. However, due to the high hardness and high brittleness of hard and brittle materials, it is very difficult to process them, and the machining of holes in hard and brittle materials is even more challenging. Milling is currently the main method for machining round holes in hard and brittle materials. However, this method cannot realize the machining of tiny holes, special-shaped holes, and holes with large depth-to-diameter ratios. Ultrasonic machining is a new processing method developed in recent decades, which is widely ...

AI Technical Summary

Problems solved by technology

[0003] However, in ultrasonic drilling, especially in the processing of tiny holes and deep holes, the parallelism between the tool head and the guide rail is very strict. If there is a certain angle deviation between the tool head and the guide rail, the tool head will wear more If it is serious, the shape accuracy of the hole will deteriorate. If the angle deviation is too large, it will not even be possible to process deep holes.

However, due to manufacturing and installation errors, there is a certain angle deviation between the axis of the tool head and the guide rail, which will seriously affect the processing accuracy of ultrasonic drilling, especially deep holes.

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