Rotating Workpiece Transfer in Machining Centres
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Solution Overview
Problem
Existing machining centers face inefficiencies, impracticalities, and reliability issues in transporting workpieces into and out of machining spaces, hindering the manufacturing process.
Innovation Solution
A machining center design featuring a transport vehicle with a receiving device that allows for translational and rotational movement, enabling efficient loading and unloading of workpieces within and outside the machining space, utilizing a housing structure with movable elements and energy provision for driving movements, and incorporating handling devices for automated operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional transport units are used to move workpieces into and out of the machining area, then workpiece handling is possible, but efficiency and speed of transport are insufficient
Solution Approach 1:
The transport vehicle is designed with movable elements including a rotatable receiving device that can pivot between different positions. This dynamic configuration allows the vehicle to efficiently load workpieces from external locations and transport them into the machining area, then easily unload finished workpieces, significantly reducing handling time and improving productivity compared to static transport systems
2Reliability
If the housing structure is kept closed for safety and cleanliness, then protection is provided, but access to the machining space becomes difficult
Solution Approach 1:
The housing structure incorporates movable elements such as a rotatable receiving device and accessible openings that can be opened or rotated when needed. This allows the housing to remain closed and protective during normal operation while enabling easy access for loading and unloading workpieces, thus maintaining both safety and operational convenience
Solution Approach 2:
The transport vehicle acts as an intermediary between the external environment and the enclosed machining space. It can receive workpieces outside the housing, transport them through controlled openings, and deliver them to the machining area without requiring the housing to be fully opened, thus maintaining protection while enabling access
3Productivity
If a transport vehicle with receiving device is introduced to improve workpiece handling, then efficiency increases, but device complexity increases
Solution Approach 1:
The transport vehicle is designed as a multi-functional unit that can perform multiple operations: receiving workpieces from external locations, transporting them into the machining area, positioning them accurately, and unloading finished workpieces. This consolidation of multiple functions into a single vehicle reduces the need for separate handling systems, thereby limiting the increase in overall system complexity while maintaining high productivity
Solution Approach 2:
The receiving device on the transport vehicle is designed to automatically receive, hold, and release workpieces without requiring complex external manipulation systems. The vehicle can autonomously navigate to loading/unloading positions and perform transfers, reducing the need for additional complex control mechanisms and simplifying the overall system architecture
Data Source
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AI summary
Machining center (10) for machining a workpiece (20), comprising a machining unit (15) arranged in a machining space (11) of the machining center (10), which includes a machining tool (16) for machining a workpiece (20) relative to a machining axis (BA1), wherein the machining center (10) comprises: a transport vehicle (30) with a receiving device (40) for receiving at least two workpieces (20), wherein the transport vehicle (30) is movably mounted in a translational degree of freedom at least between a first position inside the machining center (10), in particular inside the machining space (11), and a second position outside the machining center (10), and wherein the transport vehicle (30) and/or the receiving device (40) is movably mounted in a rotational degree of freedom.