Ultrasonic noiseless drill

Abstract

The invention belongs to wall drilling devices and relates to the field of ultrasonic nontraditional machining and in particular to an ultrasonic noiseless drill comprising a handheld rack. A motor isinstalled at the rear end of the handheld rack. The output end of the motor is connected with a spindle. An ultrasonic transducer is coaxially installed at the front end of the spindle. The front endof the ultrasonic transducer stretches out from the handheld rack. Multistage amplitude transformers are installed at the front end of the ultrasonic transducer. A tool head is installed at the end of the amplitude transformer at the most front end. The ultrasonic transducer is connected with an ultrasonic generator. A transducer fixing frame is installed at the front end of the handheld rack. The ultrasonic transducer is installed in the transducer fixing frame. The rear end of the transducer fixing frame and the spindle are installed coaxially. Under the action of the spindle, the transducer fixing frame drives the ultrasonic transducer to rotate synchronously. The ultrasonic transducer comprises a front cover plate, piezoelectric ceramics and a rear cover plate.

Description

technical field [0001] The invention relates to the field of ultrasonic special processing, and belongs to a wall drilling device, in particular to an ultrasonic silent drill. Background technique [0002] Impact drill is the most commonly used wall drilling equipment in the fields of processing and construction. Existing percussion drill generally comprises the impact mechanism of electric percussion drill and has two kinds of canine tooth type and ball type. Taking the ball-type impact electric drill as an example, its structure includes a moving plate, a fixed plate, and steel balls. The moving plate is connected to the main shaft through threads and has 12 steel balls; the fixed plate is fixed on the casing by pins and has 4 steel balls. Under the action of thrust, the 12 steel balls roll along the 4 steel balls. Make the cemented carbide drill bit produce rotary impact motion, which can drill holes in brittle materials such as bricks, blocks, and concrete. There are ...

AI Technical Summary

Problems solved by technology

However, compared with the traditional percussion drill, the above-mentioned device reduces the speed of the drill bit in actual use, so the efficiency of drilling and cutting will be reduced. When it is applied to a relatively hard concrete wall, drilling is very difficult and cannot meet work needs

[0004] At present, there is no drilling device in the market that can ensure drilling efficiency and reduce decibels on the construction site

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