Movable Spindle with Integrated Tool Rest for Continuous Machining
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Solution Overview
Problem
In work machining apparatuses with multiple spindles, the stand-by time of one spindle is prolonged due to the need to wait for another spindle to finish machining and move into position, reducing operational efficiency.
Innovation Solution
A movable spindle that moves between a supply and take-out position, integrated with a tool rest, allows for continuous machining and transfer of works between spindles, eliminating wasteful stand-by time by processing works during conveyance and utilizing stand-by time for further machining.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a work is sequentially transferred between multiple main spindles for machining, then continuous machining is enabled, but stand-by time is prolonged and operation ratio is lowered
Solution Approach 1:
The movable spindle continuously conveys the work from the supply position to the take-out position while the tool rest performs machining operations during the conveyance. This eliminates idle stand-by time by ensuring that the machining action continues throughout the entire work transfer process, not just when the work is stationary at a spindle position.
Solution Approach 2:
The tool rest is configured to be movable relative to the movable spindle, allowing it to dynamically adjust its position and perform machining operations during the conveyance. This dynamic configuration enables machining to occur while the work is in motion, transforming the previously static machining process into a dynamic one that eliminates stand-by time.
2Productivity
If a tool rest is integrally attached to the movable main spindle, then machining during conveyance is enabled, but device complexity increases
Solution Approach 1:
The tool rest is integrally attached to the movable spindle, merging the conveyance function and the machining function into a single integrated unit. This combination allows the work to be conveyed and machined simultaneously without requiring separate independent systems, thereby enabling machining during conveyance while managing complexity through functional integration.
3Productivity
If main spindles are arranged at supply and take-out positions for work transfer, then work examination is enabled during machining, but device complexity increases
Solution Approach 1:
The main spindles arranged at the supply and take-out positions serve multiple functions: they act as transfer points for work conveyance and simultaneously function as examination stations. This multi-functionality allows work to be examined during the machining process without requiring dedicated separate examination equipment, thereby improving productivity while managing device complexity through functional versatility.
Data Source
AI summary
A method for machining a work in a work machining apparatus provided with a movable main spindle moving between a work supply position and a work take-out position, includes arranging a tool rest on the movable main spindle to move integrally with the movable main spindle, supplying the work at the work supply position to the movable main spindle, moving the movable main spindle from the work supply position toward the work take-out position, machining the work held on the movable spindle with a tool of the tool rest while moving the movable main spindle from the work supply position toward the work take-out position, and taking out the work at the work take-out position from the movable main spindle.