Robotic Milling and Deep Drilling Tool Change Automation
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Solution Overview
Problem
Current milling and deep drilling machines require human intervention to change tools, disrupting the automatic working cycle and increasing machining time, especially when transitioning between milling and deep drilling modes or replacing tools due to wear or diameter/length alterations.
Innovation Solution
A milling and deep drilling machine equipped with a robotic arm capable of 3-dimensional linear movements, automatic tool storage, and a control unit that operates the robotic arm and technical cabinet to automate tool loading and switching between milling and deep drilling modes without operator intervention, using locking mechanisms to secure tools and cassettes during coupling and decoupling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual tool changing is used, then the machine structure remains simple, but the machining time increases significantly due to operator intervention
Solution Approach 1:
The tool management system is segmented into multiple components: tool magazines, robotic arms, coupling mechanisms, and control units. Each component performs a specific function in the automated tool changing process, allowing the system to reduce machining time while maintaining manageable complexity through functional decomposition
Solution Approach 2:
Tools are pre-positioned in tool magazines and the robotic arm is pre-configured with coupling mechanisms before machining operations begin. This preliminary preparation enables immediate tool changes without operator intervention, significantly reducing machining time while the automated systems handle the complexity
2Speed
If automated robotic arm is introduced, then tool changing speed improves, but the device complexity increases
Solution Approach 1:
The robotic arm is designed with universal coupling mechanisms that can handle both milling tools and deep drilling tools through standardized interfaces. The arm can perform multiple functions including tool pickup, positioning, coupling, and decoupling, which increases tool changing speed while controlling overall system complexity through multi-functionality
Solution Approach 2:
A specialized coupling mechanism acts as an intermediary between the robotic arm and the tools. This mediator component simplifies the interaction by providing standardized coupling and decoupling interfaces, allowing the robotic arm to quickly change tools without requiring complex direct manipulation mechanisms
3Loss of time
If manual assembly of equipment is required, then the control system remains simple, but the operation time increases due to operator intervention
Solution Approach 1:
The control system incorporates feedback mechanisms that monitor the positions of the robotic arm, tool magazine status, and coupling mechanism states. This feedback enables automated decision-making and coordination, reducing operation time by eliminating manual assembly steps while the control system manages the complexity of coordinating multiple automated components
4Productivity
If tool coupling mechanisms are simplified, then the assembly process becomes faster, but the reliability of tool securing decreases
Solution Approach 1:
The coupling mechanism is designed with self-aligning and self-securing features that automatically ensure proper tool engagement when the robotic arm positions and couples the tool. This self-service capability allows simplified assembly processes to maintain high reliability, as the mechanism itself ensures correct positioning and secure attachment without requiring complex manual adjustment procedures
Data Source
AI summary
A milling and deep drilling machine operated by a control unit is provided, which commands the action of a robotic arm in a coordinated and automatic manner, being responsible for milling and deep drilling actions, and at least one technical tool storage cabinet. The robotic arm having a mobile structure, with a base structure along which a driving unit is moved, over sliding rails. The configuration of the milling mode in the machine is achieved by coupling a milling tool to the drive unit. For the configuration of the deep drilling mode, the base structure of the robotic arm has coupling device that allow the assembly of a cassette in which the deep hole drilling tool is installed