Modular Machine Tool Layout for Rail-Free AGV Machining
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Solution Overview
Problem
Current driverless transport systems (AGVs) are inflexible due to reliance on complex rail systems, which cannot adapt to changes in production processes or locations, and lack the ability to process workpieces directly, limiting their effectiveness in manufacturing.
Innovation Solution
A modular machine tool system comprising a movable driverless transport vehicle and a stationary machine tool structure with a tool-carrying spindle, allowing the machine tool structures to be freely positioned without rail systems, enabling flexible positioning and processing of workpieces across various locations and production steps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rail system is used to guide AGVs, then the transport system can be implemented, but the system becomes complex and inflexible
Solution Approach 1:
The patent removes the rail system from the AGV guidance mechanism, allowing AGVs to move freely on the base area without being constrained by fixed rails. This extraction of the guiding infrastructure simplifies the overall system while maintaining transport functionality through free movement capability.
Solution Approach 2:
The patent transitions from a static rail-based guidance system to a dynamic free-movement system where AGVs can autonomously navigate and position themselves anywhere on the base area, enabling flexible repositioning and adaptation to changing production requirements.
2Extent of automation
If AGVs are used for transport, then automation is increased, but the ability to process workpieces directly is lost
Solution Approach 1:
The patent integrates multiple functions into the AGV system: transport function through free movement on the base area, and machining function through the integrated tool-carrying work spindle. This multi-functionality allows the same system to both transport workpieces and perform machining operations, eliminating the need for separate processing stations.
Solution Approach 2:
The patent combines the transport vehicle and machining center functions into a single integrated system. The AGV with the workpiece clamping device merges with the stationary structure containing the tool-carrying work spindle to form a unified machine tool that performs both transportation and machining operations.
3Stability of the object's composition
If machine tools are fixed in position, then stability is maintained, but flexibility to reposition for different production needs is reduced
Solution Approach 1:
The patent creates a dynamic machine tool system where the first machine tool structure (AGV with clamping device) can move freely on the base area to position itself relative to the stationary second machine tool structure (work spindle). This dynamic positioning capability allows the system to adapt to different production configurations while maintaining operational stability during machining.
Solution Approach 2:
The patent divides the machine tool into two separate structures: a movable first structure containing the workpiece clamping device, and a stationary second structure containing the tool-carrying work spindle. This segmentation allows independent optimization of each component - mobility for the clamping unit and stability for the machining unit - while enabling flexible reconfiguration through their relative positioning.
Data Source
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AI summary
The present invention relates to a machine tool (1000) for machining a workpiece (1), comprising: at least one first machine tool structure which can be moved freely on a base surface and has at least one machine tool component, and at least one second machine tool structure having at least one further machine tool component, wherein the at least one freely movable first machine tool structure, together with the at least one second machine tool structure, forms the machine tool (1000) configured for machining the workpiece (1), when the at least one freely movable first machine tool structure is positioned on the at least one second machine tool structure.