Dual-Axis Tool Post Layout for Compact Multi-Operation Machine Tools
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Solution Overview
Problem
Conventional machine tools are limited in the variety of operations they can perform due to the number and kind of tools attachable to the turnable holder, and increasing the number of tools leads to increased machine size.
Innovation Solution
A machine tool design featuring two turnable holders on perpendicular axes, allowing multiple tools to be attached, with a common motor for driving both holders and a brake to maintain the turning angle, reducing the machine's size and cost while enhancing machining accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a larger turnable holder with more tool mounting parts is used to increase the variety of operations, then the number of attachable tools increases, but the turning space occupied increases and the machine size increases
Solution Approach 1:
The patent divides the tool holding function into multiple separate turnable holders (first turnable holder and second turnable holder) instead of using one large holder. Each holder can be independently rotated on different turning axes, allowing multiple tools to be positioned and oriented independently to perform various machining operations, thereby achieving high versatility without requiring a large single holder structure
Solution Approach 2:
The patent introduces multiple turning axes (first turning axis and second turning axis that are perpendicular to each other) to enable the turnable holders to rotate in different dimensional directions. This multi-axis rotation capability allows tools to be directed toward the workpiece from different angles and orientations, expanding the variety of operations that can be performed without increasing the footprint of individual holders
2Adaptability or versatility
If multiple turnable holders with different turning axes are introduced to increase operation variety, then the versatility improves, but the device complexity increases
Solution Approach 1:
The patent designs the tool post structure to serve multiple functions: it supports multiple turnable holders, provides multiple turning axes, enables various tool orientations, and accommodates different tool types. This multi-functional design consolidates what could be separate complex systems into an integrated tool post assembly, achieving high versatility while managing overall device complexity through functional integration
Data Source
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AI summary
A machine tool includes a spindle 31 capable of holding a workpiece W and rotatable on a spindle axis CL1 and a tool post 5 on which a tool is attachable to machine the workpiece W held by the spindle 31. The tool post 5 includes a first turnable holder 53 turnable on a first turning axis B1 perpendicular to the spindle axis CL1. The first turnable holder 53 has a first tool unit mounting part 53a where a rotary tool Tla is attachable. The tool post 5 further includes a second turnable holder 54 turnable on a second turning axis B2 perpendicular to the spindle axis CL1 and different from the first turning axis B1. The second turnable holder 54 has a second whirling tool mounting part 54a where a thread whirling tool TT2 is attachable.