Supersonic vibration countersinking device applied in pneumatic drilling

Abstract

The invention discloses a supersonic vibration countersinking device applied in pneumatic drilling. The device comprises a slide ring, a front cover plate, a shaft sleeve, a three-legged bracket, a flange disc, a retaining ring, a countersink, a central shaft, a central sleeve, a lining, a pneumatic drill, an external spring, an internal spring, a clamp spring, a ceramic plate B, a ceramic plate A, a rear cover plate and a clamp ring. A main shaft of the pneumatic drill is connected with an internal threaded hole on the front cover plate, the ceramic plate B, the ceramic plate A and the rear cover plate are mounted at one end of the front cover plate, the other end of the front cover plate is connected with one end of the central shaft, the central shaft is sleeved in the central sleeve, and the other end of the central shaft is connected with the countersink; and an internal ring of the slide ring is mounted on the external edge of the rear cover plate, a connecting ring is arranged between an external ring of the slide ring and the flange disc, a casing of the pneumatic drill is connected with the flange disc; and the three-legged bracket, the shaft sleeve and the clamp ring are sleeved on the central sleeve, and the three-legged bracket can ensure that the countersink is perpendicular to the surface of a workpiece to be processed. The supersonic vibration drilling device provided by the invention can be applied in the tight high-precision countersinking of carbon fiber composite material of airplane skin as well as of large ports of titanium-alloy laminated fasteners.

Description

technical field [0001] The invention relates to an ultrasonic vibrating spot facing device, more particularly, to an ultrasonic vibrating spot spotting device applied to an air drill. The ultrasonic vibration drilling device is more suitable for high-precision compact spot-face machining of large holes of aircraft skin carbon fiber composite materials and titanium alloy laminated fasteners. Background technique [0002] Ultrasonic vibration cutting is a cutting method that adds an ultrasonic vibration to the tool to make the original continuous cutting process intermittent and has a special cutting effect. It was first proposed by Japanese scholars. Ultrasonic vibration cutting has the unique advantages of reducing cutting force and cutting temperature, improving surface quality and shape and position accuracy. However, the previous vibration processing devices have complex structures and large volumes, and they are all applied to machine tools or various processing centers...

AI Technical Summary

Problems solved by technology

However, the previous vibratory processing devices have complex structures and large volumes, and they are all applied to machine tools or various processing centers.

Therefore, the portability of the vibration device is poor, which limits the application of vibration technology in light and portable hand tools, especially in the current aircraft skin assembly site, it is impossible to apply the advantages of vibration technology to ordinary air drills to process a large number of difficult-to-machine laminated materials with high precision fastener hole

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