Detachable Rotary Tool Post for Easier Spindle Drive Maintenance
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Solution Overview
Problem
The existing machine tools with power transmission mechanisms in the tool post have poor maintainability due to the difficulty in accessing and replacing worn or broken components, as the tool post design obstructs access to the power transmission mechanism.
Innovation Solution
The machine tool design includes a detachable tool mounting member on the front side of the base table, allowing the power transmission mechanism to be exposed and maintained easily, with the option to store it in a base table storage space, and a guiding member that prevents the need for increased tool post size while improving maintainability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the power transmission mechanism is housed inside the tool post with the tool post base covering the lower portion, then the structural integrity and compactness are improved, but the maintainability deteriorates due to difficulty in accessing and replacing components
Solution Approach 1:
The tool post base is divided into a front side portion and a back side portion that can be separated from each other. The back side portion is made detachable from the front side portion, allowing maintenance personnel to access the power transmission mechanism by removing only the back side portion while keeping the front side portion attached to the tool post. This segmentation enables easy maintenance while preserving the overall structural integrity when assembled.
2Ease of repair
If the tool post size is increased to accommodate the power transmission mechanism and guiding members, then the maintainability improves by providing access space, but the machining precision deteriorates due to increased bending moments
Solution Approach 1:
The tool post base is segmented into detachable front and back side portions, creating access space for maintenance without increasing the overall tool post dimensions. This allows maintenance personnel to work on the power transmission mechanism through the separated back side portion while the compact tool post structure maintains its original stiffness and minimizes bending moments during machining operations.
Data Source
AI summary
The machine tool includes a second spindle rotatable about a second spindle axis while gripping a cut-off portion of a workpiece, a second tool post to which a rotary tool that machines the cut-off portion of the workpiece gripped by the second spindle is attached, and a second tool post base that supports the second tool post, in which the second tool post includes a power transmission mechanism that transmits a driving force for rotationally driving the rotary tool, a base table, and a tool mounting member to which the rotary tool is attached, the power transmission mechanism is disposed between the base table and the tool mounting member, a back side of the base table faces the second tool post base and the tool mounting member is disposed on a front side of the base table, and the tool mounting member is detachably attached to the base table.