Control method and device for electric tool, and electric tool

Abstract

The present invention provides a control method and device for an electric tool, and an electric tool, and relates to the field of automatic control of electric tools. The method comprises the following steps of: obtaining parameters representing output shaft loads during the operation of the electric tool; according to a composite averaging algorithm, calculating the average value of the parameters representing output shaft loads, wherein the composite averaging algorithm comprises a combination of at least two averaging algorithms; calculating a slope value of a current based on the averagevalue of the parameters representing the output shaft loads; and interrupting the torque output of the electric tool based on the slope value.

Description

Control method and device of electric tool and electric tool technical field The invention relates to the field of automatic control of electric tools, in particular to a control method and device for electric tools and the electric tool. Background technique At present, most electric tools have the function of intelligent control according to working conditions, such as hand-held electric drills. The existing hand-held electric drills usually have two functions at the same time. The first is to use electric drive motors to realize drilling functions, and the second is to use electric drive The motor realizes the function of assembling the fastener. For the function of assembling fasteners, the processor inside the power tool will realize automatic shutdown operation according to the position of the driven fastener, so that it can automatically stop when the fastener just reaches the preset position, avoiding the need for the operator Manual intervention. In the actual ...

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Problems solved by technology

In the actual use process, there are many types of materials penetrated by fasteners, and there are uncertain factors such as differences in human operation, which makes the actual working conditions of the motor more complicated, and the technical solutions disclosed in the prior art cannot accurately Adapt to different working conditions, and can accurately stop at the preset position under different working conditions, which will reduce the efficiency of automatic fastening operations

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