Power tool

Abstract

The invention relates to a power tool, which comprises a shell, a motor, an output shaft, a transmission mechanism, a storage clamp, a connecting shaft and an automatic switching device, wherein the transmission mechanism is arranged between the motor and the output shaft, and is used for transmitting rotating power output by the motor to the output shaft; the storage clamp comprises a plurality of accommodating cabins which are formed in parallel and are used for accommodating work heads; the connecting shaft can move axially between a working position where the connecting shaft passes through one of the plurality of accommodating cabins to connect the work head accommodated in the accommodating cabin with the output shaft in a matching way and a releasing position where the connecting shaft is separated from the accommodating cabin; the shell is provided with an operating part for controlling the connecting shaft to move axially; the automatic switching device is used for adjusting the position of the storage clamp in response to the movement of the operating part; the automatic switching device comprises an energy storing unit which is matched with the storage clamp; and the connecting shaft moves axially till the connecting shaft is separated from one of the plurality of accommodating cabins, and energy of the energy accumulating unit is released to drive the storage clamp to move to another position, which axially corresponds to the output shaft, in the plurality of accommodating cabins.

Description

technical field [0001] The invention relates to a power tool, in particular to a gun drill type power tool which can realize the storage and quick replacement of working heads. Background technique [0002] Existing gun drill power tools generally include electric drills, electric screwdrivers and impact drills. [0003] An electric screwdriver is a commonly used electric tool for tightening screws to workpieces. When screws with different specifications need to be tightened during use, different working heads, that is, batch heads, should be replaced according to different screw specifications, that is, the originally installed working head should be removed, and then a working head with another structure should be installed. . In the occasions where the working head needs to be replaced frequently, it brings great inconvenience to the operator. On the one hand, it is cumbersome to replace the working head, and on the other hand, the removed working head is easily lost wh...

AI Technical Summary

Problems solved by technology

In this way, it is necessary to operate the multi-cutter rotary drum to separate the cutter head sleeve from the rotary drum, and then rotate the rotary drum to select the bit, which will be troublesome to operate.

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