Zero adjustment device for rotary encoders and application method thereof

Abstract

The invention relates to a zero adjustment device for rotary encoders and an application method thereof. The device comprises an encoder acquisition card, a computer, an electronic hand wheel, a stepping motor driver, a stepping motor, a cylindrical worm, a helical gear and a universal magnetic gauge stand assembly, wherein the encoder acquisition card is used for connecting the signal output end of a rotary encoder of an automatic control mechanism, the computer is connected with the encoder acquisition card, the stepping motor driver is connected with output signals of the electronic hand wheel, and the stepping motor is connected with the stepper motor driver. In the process of operating, through rotating the electronic hand wheel, the stepping motor rotates and drives the helical gear to rotate through driving the cylindrical worm so as to drive a hollow rotating shaft, and meanwhile, the computer reads the output of the rotary encoder through the encoder acquisition card and displays whether the rotary encoder reaches a zero position; and when the rotary encoder reaches the zero position, a user stops rotating the electronic hand wheel, and the stepping motor stops rotating.

Description

technical field [0001] The invention relates to the field of mechanical automation control, in particular to a zero position adjustment device of a rotary encoder of an automatic control mechanism and a use method thereof. Background technique [0002] Generally, an automatic control mechanism with a rotating shaft needs to use a rotary encoder to detect the angle of the rotating shaft during use. When the angle of the rotating shaft is a special value (usually zero position), a part of the automatic control mechanism moves to a special position, that is, the mechanism When moving to this position, the rotary encoder rotating coaxially with the rotating shaft just outputs a zero position signal; the installation method of the rotary encoder on the automatic control mechanism: the hollow rotating shaft of the rotary encoder is driven by the rotating shaft of the automatic control mechanism under test. connected; the housing of the rotary encoder is set on the mounting plate o...

AI Technical Summary

Problems solved by technology

[0004] Since the rotary encoder may stop at any position in the circumferential direction during installation, usually in order to make the rotary encoder stop at the zero position, it is generally necessary to disconnect the encoder shaft from the mechanism shaft (the encoder shaft can rotate, while the mechanism shaft do not move), manually rotate the encoder shaft until the zero signal is output, since the hollow shaft of the rotary encoder needs to be fixedly connected with the shaft of the automatic control mechanism under test at the same time, it is difficult to control its accuracy

That is: the traditional manual adjustment method is difficult to stop the encoder shaft at zero quickly, accurately and reliably

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