Machine Tool Loading Portal Layout for Faster Multi-Side Machining
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Solution Overview
Problem
Existing machine tools for multi-side machining are complex, require a large footprint, and have long machining times due to the need for multiple jigs that perform both clamping and workpiece transfer, leading to inefficient loading and unloading processes.
Innovation Solution
A machine tool design with a compact, simplified structure featuring a single or dual vertically aligned tool spindle and jigs, along with a workpiece transport device that handles loading and unloading, allowing for faster and more efficient workpiece transfer between jigs, reducing overall machining time and maintaining accessibility of the working zone.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple jigs are used for both clamping and workpiece transfer, then multi-side machining capability is achieved, but device complexity and footprint increase
Solution Approach 1:
The system is divided into functionally independent modules: clamping devices (jigs) that remain stationary during machining, and a separate workpiece transport device that handles loading and unloading. This segmentation allows each component to be optimized for its specific function, reducing overall structural complexity while maintaining multi-side machining capability.
Solution Approach 2:
The workpiece transport device serves multiple functions: it loads unmachined workpieces into the clamping device, transports machined workpieces out, and can reposition workpieces between different machining positions. This multi-functionality eliminates the need for separate dedicated transport mechanisms, reducing device complexity.
2Device complexity
If jigs perform both clamping and workpiece transfer, then functional integration is achieved, but machining time increases
Solution Approach 1:
By separating clamping and transport functions, the system enables parallel operations: the workpiece transport device can load or unload workpieces independently while the clamping device maintains stable workholding during machining, eliminating idle time and reducing total machining cycle time.
Solution Approach 2:
The independent workpiece transport device ensures continuous supply of unmachined workpieces and removal of machined ones without interrupting the machining process. This continuous operation eliminates waiting time and maintains steady productivity.
3Ease of operation
If a loading portal with posts is used for workpiece transport, then workpiece loading and unloading is enabled, but footprint and accessibility are compromised
Solution Approach 1:
The workpiece transport device is extracted from the traditional loading portal configuration with external posts. Instead, it is integrated as a compact mechanism mounted on the machine frame, removing the need for large external support structures and reducing the overall footprint while maintaining loading and unloading functionality.
Solution Approach 2:
The workpiece transport device is merged with the machine frame structure, combining support and transport functions into a single integrated system. This eliminates the need for separate posts and external framing, reducing footprint while preserving ease of operation.
Data Source
AI summary
A machine tool is provided with a vertically aligned tool spindle, which is equipped for accommodating tools and which is movable in a vertical direction and in a first horizontal direction. The machine tool further comprises at least one jig for clamping workpieces to be machined. The at least one jig is movable in a second horizontal direction. The tool spindle and the at least one jig are arranged on a common machine frame. There is also provided a workpiece transport device, which is arranged on the machine frame, and which is adapted to perform at least one of introducing unmachined workpieces into the at least one jig and removing machined workpieces from the at least one jig. There is also provided a corresponding method of machining workpieces.