Vertical Double-Spindle Machine Tool for Long Workpiece Machining
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Solution Overview
Problem
Double-spindle machines have a limited maximum length of workpieces that can be machined due to their design, restricting their machining efficiency.
Innovation Solution
A machine tool configuration with vertically arranged working spindles, a common spindle adjustment device for joint displacement along the Z-axis, and a workpiece clamping system with pivotable tables allows for efficient machining of long workpieces, enabling independent operation of spindles and simultaneous machining of differently configured workpieces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If double-spindle machines are used to machine workpieces simultaneously, then productivity is improved, but the maximum length of workpiece that can be machined is limited
Solution Approach 1:
The patent transitions from a horizontal arrangement of spindles to a vertical arrangement where spindles are stacked one above another. This dimensional change allows the machine to accommodate longer workpieces horizontally while maintaining simultaneous machining capability through multiple vertically arranged spindles, thus resolving the contradiction between productivity and workpiece length limitation
2Device complexity
If a common spindle adjustment device is used for joint displacement of spindles, then device complexity is reduced, but the ability to machine differently configured workpieces independently is limited
Solution Approach 1:
The patent segments the spindle adjustment system into two parts: a common adjustment device for synchronized movement and individual adjustment mechanisms for each spindle. This segmentation allows spindles to move together for standard operations while enabling independent positioning when different workpiece configurations require different spindle positions, thus balancing device simplicity with operational versatility
3Productivity
If multiple working spindles are arranged vertically one above another, then productivity is increased through simultaneous machining, but machine tool complexity increases
Solution Approach 1:
The patent merges multiple spindle adjustment functions into a single common adjustment device that controls the vertical position of all spindles simultaneously. This consolidation reduces the number of independent adjustment mechanisms needed, thereby reducing overall machine complexity while maintaining the productivity benefits of multiple vertically arranged spindles
Data Source
AI summary
A machine tool includes: a machine frame; at least a first working spindle which is pivoted about a first spindle axis; at least a second working spindle which is pivoted about a second spindle axis; a workpiece clamping device which is configured to receive at least a first workpiece and a second workpiece. The first working spindle and the second working spindle are arranged vertically one above the other.