Power tool

Abstract

The invention provides a power tool which comprises a driving shaft, wherein the driving shaft is provided with a longitudinal axis and drives a work element in a way of vibration through a torque drive structure; the work element is provided with s first working position and at least one second working position which vibrate around the longitudinal axis, and the second working position is provided with a transposition angle relative to the first working position; the work element is clamped on an upper clamping mechanism of the power tool, wherein the work element and the torque drive structure can be trans-positioned from the first working position to the second working position in a way of non-disconnection. Compared with the existing power tool in transposition adjustment of the work element, the work element does not need to be taken down so as to achieve angle adjustment of the work element, so that the power tool is time saving and labor saving.

Description

technical field [0001] The present invention relates to a power tool comprising an output shaft for driving the tool and a fastener for clamping a working element to the end of the output shaft, and a fastener for making the fastener A moving device that moves between a released position and a clamped position, in which the fastener can be removed from the output shaft by disengaging from the moving device, whereas in the clamped position, the fastener is locked by the moving device The joint and the elastic element work together to support the end of the output shaft so that the working element is firmly clamped. Background technique [0002] Known from US6569001B2 is a power tool with a quick clamping device, the hand tool is an angle grinder, the angle grinder is equipped with a hollow output shaft, and the hollow shaft is equipped with a Clamping device movable between a clamped position and a released position, the clamping device comprises a clamping flange with a thr...

AI Technical Summary

Problems solved by technology

[0003] Although this clamping device can basically clamp the working element to the output shaft of the hand tool without auxiliary tools, this clamping device is only suitable for clamping the working element that is driven by rotation, if the working element is driven by the vibration device Driven so that the working element oscillates back and forth about the longitudinal axis of the output shaft, this results in large abrupt torques in both directions of rotation with extreme shocks, which cannot be ensured by known clamping devices Clamp the working element fully and firmly

[0004] The above-mentioned power tool in the prior art also has a defect that the working element clamped on it cannot be adjusted at multiple angles, because the working element is either in the state of being clamped and performing an operation through the clamping device, or is in the state of being clamped. In the state of releasing and taking out, when it is necessary to perform multi-angle working conditions, the working element needs to be removed and re-clamped. This operation is laborious and time-consuming, and it is not convenient enough

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