Tool Rest Allocation for Continuous Inner and Outer Diameter Machining
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Machine tools face challenges in continuous machining when there are few normal tools available, as attaching an unused tool to a minority-side holder can prevent inner or outer diameter machining, leading to inefficiencies and potential machine downtime.
Innovation Solution
A machine tool system with a tool rest, machining control unit, tool storage unit, and tool management unit that identifies unused tools and strategically attaches normal tools to ensure continuous machining by redistributing tools during changes, even when there are more tools on one type of holder than another.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If an unused tool is attached to a minority-side holder to balance tool distribution, then tool storage utilization is improved, but machining capability is lost because the holder can no longer perform its designated function
Solution Approach 1:
The system performs preliminary identification of unused tools and predicts future tool needs before actual machining operations require them. The tool management unit proactively attaches normal tools to minority-side holders in advance, ensuring machining capability is maintained while improving storage utilization. This prevents the problem of having unused tools available but unable to use them due to lack of normal tools in critical positions.
Solution Approach 2:
The tool management unit continuously monitors the usage state of tools and the distribution of normal tools across holders. It provides feedback information about which holders are on the minority side and which tools are unused, enabling dynamic adjustment of tool attachment decisions. This feedback mechanism ensures that tool distribution decisions maintain machining capability while optimizing storage utilization.
2Reliability
If only normal tools are selected for tool changes to maintain machining capability, then machining continuity is ensured, but tool storage utilization deteriorates as unused tools remain unused
Solution Approach 1:
The system performs preliminary attachment of normal tools to minority-side holders before machining operations deplete them. By anticipating future needs and proactively distributing normal tools to critical holders, the system ensures machining continuity is maintained while simultaneously improving unused tool utilization. This eliminates the need to leave unused tools idle.
Solution Approach 2:
The tool management unit automatically manages the distribution of normal tools to minority-side holders based on its own monitoring of tool usage states and holder distributions. This self-service capability enables the system to optimize its own tool inventory utilization without external intervention, ensuring both machining continuity and improved storage utilization.
3Adaptability or versatility
If multiple tools of the same type are attached to holders with different directions, then tool versatility is improved, but tool management complexity increases due to need to track usage states and distribute tools strategically
Solution Approach 1:
The tool management unit automatically tracks the usage states of tools and monitors the distribution of normal tools across holders with different directions. It autonomously makes decisions about which unused tools to attach to which minority-side holders, eliminating the need for complex manual management. This self-service approach handles the complexity while maintaining tool versatility.
Solution Approach 2:
The system continuously monitors and provides feedback on tool usage states, holder distributions, and machining requirements. This feedback enables the tool management unit to dynamically adjust tool attachment decisions, simplifying the management of versatile tool configurations by automating the tracking and distribution based on real-time system state.
Data Source
AI summary
In a case of attaching a plurality of tools of the same type to a tool rest, machining work is continued even when a sufficient number of normal tools are not left. A machine tool includes a tool rest including a first holder for an inner-diameter side and a second holder for an outer-diameter side, a machining control unit configured to control the tool rest to machine the workpiece, a tool changing unit configured to change tools, and a tool management unit configured to identify an unused tool. In a case of attaching a plurality of tools of the same type to both the first and second holders, when the number of the first holders is larger than the number of the second holders, the tool changing unit attaches the unused tool to the first holder.