Rotation Indexing Joint Layout for Easier Seal Replacement
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Solution Overview
Problem
The existing rotation indexing devices require labor-intensive operations to detach and reattach the jig unit when replacing the seal member of the rotary joint, leading to increased labor and time consumption.
Innovation Solution
A configuration where the jig plate is directly attached to the main shaft, allowing the shaft to be detached without removing the jig unit, and an adapter communicates the supply path of the shaft with the flow path of the jig plate, simplifying fluid supply and preventing device enlargement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If the shaft is detached from the rotation indexing device to replace the seal member, then the seal member can be replaced, but the jig unit must be detached and reattached, consuming considerable labor and time
Solution Approach 1:
The invention divides the shaft into two separate components: the rotary joint shaft (containing the seal member) and the jig plate assembly. This segmentation allows the rotary joint shaft to be detached and serviced independently without requiring detachment of the jig plate, thereby resolving the contradiction between ease of repair and ease of operation
Solution Approach 2:
The invention introduces an adapter as an intermediary component that couples the jig plate to the rotary joint shaft. This adapter serves as a mediator that allows the jig plate to remain attached to the main shaft while enabling the rotary joint shaft to be detached for seal member replacement, thus eliminating the need to detach and reattach the jig unit during maintenance
2Ease of operation
If the jig plate is directly attached to the main shaft, then the shaft can be detached without removing the jig unit, but the device configuration becomes more complex
Solution Approach 1:
The adapter serves multiple functions simultaneously: it acts as a coupling element between the jig plate and rotary joint shaft, provides a mounting interface for the jig plate, and enables independent detachment of the rotary joint shaft. This multi-functionality reduces the need for multiple separate components, thereby managing device complexity while achieving the desired operational ease
Solution Approach 2:
The adapter is designed to be nested within the existing structure, fitting between the jig plate and the rotary joint shaft. This nesting approach allows the adapter to perform its coupling function without adding significant external complexity to the overall device configuration, maintaining a compact and integrated appearance
3Adaptability or versatility
If multiple flow paths are provided in the jig plate to supply pressure fluid to each jig, then each jig can be supplied independently, but the device complexity increases
Solution Approach 1:
The invention merges the flow path functions by providing a single flow path in the jig plate that can supply pressure fluid to multiple jigs. This consolidated approach reduces the number of separate flow paths needed, thereby simplifying the device configuration while maintaining the adaptability to supply fluid to multiple jigs through a unified system
Data Source
AI summary
The present invention provides a rotation indexing device where a shaft of a rotary joint is configured so that an outlet of a supply path opens to a lower surface of a flange part, a jig plate is formed to have a through-hole in which the flange part of the shaft is arranged and a flow path formed so that an inlet opens to a lower surface of the jig plate, and the jig plate is directly attached to a main shaft. Also, the rotation indexing device includes an adapter that is provided in contact with the flange part of the shaft and the jig plate and has a communication path for communicating the outlet of the supply path in the shaft and the inlet of the flow path in the jig plate each other.