Combination positioning device

Abstract

The invention relates to a combined positioning device, which comprises primary positioning pieces, secondary positioning pieces arranged movably and a transmission mechanism capable of enabling the primary positioning pieces and the secondary positioning pieces to be in transmission connection at a constant more-than-one transmission ratio n, wherein each primary positioning piece and each secondary positioning piece are respectively provided with a primary positioning reference and a secondary positioning reference for indicating each motion position. The combined positioning device also comprises a reference detection device for detecting whether the primary positioning reference moves to a set position range, whether the secondary positioning reference moves to a set position range, and output an in-position instruction when the primary positioning reference is detected to move to the set position range and the secondary positioning reference is detected to move to the set position range at the same time. Thus, the positioning accuracy is improved, and the product performance is enhanced; and in addition, multiple groups of primary positioning pieces and secondary positioning pieces can be arranged, multi-position positioning can be realized, different use demands can be met, and extensibility and universality are strong.

Description

technical field [0001] The invention relates to a combination positioning device. Background technique [0002] The three-position switch has an isolated closing position, an opening position and a grounding position during the action process, and is driven by the corresponding operating mechanism to achieve position conversion during operation. In order to ensure the accurate action of the three-position switch and ensure the safety of equipment and personal safety, the three-position isolation usually uses a micro travel switch as a positioning device for indicating the movement position of the output end of the operating mechanism, and generates a trigger signal when the switch action is in place. , to realize the indication of the running state and the control of the operating mechanism. [0003] The Chinese patent with the application number 201120474040.1 and the announcement number CN 202394733 U discloses a three-station electric operating mechanism, including a mot...

AI Technical Summary

Problems solved by technology

However, micro switches are used to control the electric operating mechanism. Due to the inevitable manufacturing errors of the gear set, transmission cam and micro switches, in the transmission process, even if the errors of the three are small, after step-by-step transmission The final output error will also accumulate relatively large, so that the working status of the three-position switch cannot be accurately indicated, and the precise control of the operating mechanism cannot be realized, which affects the operation stability of the three-position switch

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