High-speed ultrasonic vibration assistant air drill

Abstract

The invention discloses a high-speed ultrasonic vibration assistant air drill which is composed of an ultrasonic generator, an ultrasonic wireless power transmission mechanism, a connection mechanism, an ultrasonic energy conversion mechanism, an ultrasonic amplitude varying mechanism and a drill bit clamping mechanism. The ultrasonic generator generates an ultrasonic frequency electric signal and provides ultrasonic frequency electric excitation for a system; the ultrasonic wireless power transmission mechanism achieves effective transmission of electric energy and dynamic and static transition; the connection mechanism is fixedly connected with the ultrasonic energy conversion mechanism, and the ultrasonic energy conversion mechanism is located at the front portion of the connection mechanism and used for converting the ultrasonic frequency electric signal into ultrasonic frequency mechanical vibration; the ultrasonic amplitude varying mechanism is fixed at the front end of the ultrasonic energy conversion mechanism and used for converting small-amplitude mechanical vibration into large-amplitude mechanical vibration; the drill bit clamping mechanism is installed at the front end of the ultrasonic amplitude varying mechanism and used for clamping a drill bit. As ultrasonic vibration is used for assisting in drilling, a traditional continuous drilling mode is removed, and average drilling force of drilling is decreased. By the utilization of the ultrasonic vibration for assisting in drilling, the cutting performance of materials difficult to machine is improved, and application range of drilling machining is made to be wider.

Description

technical field [0001] The invention belongs to the technical field of ultrasonic machining, and in particular relates to a high-speed ultrasonic vibration-assisted air drill. Background technique [0002] Pneumatic drill is a hand-held pneumatic processing tool, mainly used for drilling metal components, especially suitable for drilling thin-walled shells and light alloy components such as aluminum and magnesium. Widely used in automobile, shipbuilding, aviation, aerospace industry manufacturing industries. At present, there are mainly the following types of air drills: pistol air drills, straight handle air drills, elbow air drills, countersunk air drills, and screw feed air drills. The advantages of air drills are that they can accept continuous air signals and output linear displacement and angular displacement; high moving speed and high reliability; simple maintenance and good adaptability to the environment; large output power and explosion-proof function. However, ...

AI Technical Summary

Problems solved by technology

However, the speed of the air drill is low, the control accuracy is low, the noise is large, and it is not suitable for drilling deep and small holes, especially for difficult-to-machine materials such as titanium alloys; these shortcomings restrict the wide application of air drills

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