Swivel mechanism, positioning device and electrical inspection device

By utilizing the connection structure of the rotary mechanism and the relative movement restriction and compression of the shaft components and elastic components, the vibration effect caused by the densification of the printed circuit board is solved, and high-precision and high-speed electrical inspection positioning is achieved.

CN122361856APending Publication Date: 2026-07-10YAMAHA FINE TECHNOLOGIES CO LTD
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Patent Information

Application Number
CN202610003899.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2025-01-08
Filing Date
2026-01-05
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

In electrical inspection devices for printed circuit boards, the increased density of the printed circuit board and the increased number of contacts lead to an increase in the mass of the movable parts, which in turn increases the impact of vibration on the movement accuracy, making it difficult to achieve high-precision and high-speed positioning.

Method used

A rotary mechanism is adopted, which uses a connection structure in which the first and second rotating bodies are spaced apart and opposite each other in the direction of rotation axis. By utilizing the compression and expansion of the shaft component and the first and second elastic components when the relative distance changes, the relative movement in the rotation direction is restricted and the radial relative movement is allowed, thereby improving the movement accuracy.

Benefits of technology

It improves movement accuracy, reduces the impact of vibration on movement accuracy, and takes into account the improvement of movement speed, thus realizing high efficiency in electrical inspection.

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Abstract

The purpose of this disclosure is to provide a rotary mechanism that can improve the accuracy of movement. The rotary mechanism (1) of this disclosure comprises: a first rotating body (10) having a first mass portion (11), a first shaft portion (12), and a first opposing portion (13); a second rotating body (20) having a second mass portion (21), a second shaft portion (22), and a second opposing portion (23); a fixing member (30) that rotatably holds the first shaft portion (12) and the second shaft portion (22) coaxially; and a connecting structure (40) that restricts the relative movement of the first rotating body (10) and the second rotating body (20) in the rotational direction and The connection structure (40) has: a shaft member (41) that connects the first opposing portion (13) and the second opposing portion (23); a first elastic member (42) that covers the area around the shaft member (41) between the first opposing portion (13) and the second opposing portion (23); and a second elastic member (43) that covers the area around the shaft member (41) outside the first opposing portion (13), the first elastic member (42) and the second elastic member (43) being compressed in relation to the relative distance between the first opposing portion (13) and the second opposing portion (23).
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Citation Information

Patent Citations

  • Inspection device for printed board

    JP2009085967A

  • Turning mechanism and positioning device

    JP2017175020A