Machine Tool Boring Bar Circular Arc Tool Changer
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional machine tools with tool changers for long tools, such as boring bars, face challenges in miniaturization and complexity due to the need for large width dimensions and intricate operational mechanisms.
Innovation Solution
A machine tool with a tool changer that employs a circular arc movement mechanism and a linear movement mechanism to move tools parallel to the spindle axis, allowing for tool change without increasing the machine's width and simplifying the structure, enabling the tool to be positioned coaxially with the spindle and minimizing interference during the change process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If tools are stored with their axes intersecting the spindle axis, then tool change is enabled, but the machine width increases
Solution Approach 1:
The patent changes the tool storage orientation from intersecting the spindle axis to being parallel to it, effectively utilizing a different spatial dimension. This allows tools to be arranged along the machine depth direction rather than width direction, enabling tool change capability while reducing machine width.
2Ease of operation
If a sleeve is axially movably arranged in a spindle tube with parallel link mechanism, then tool change is enabled, but the structure becomes complicated
Solution Approach 1:
The patent extracts and eliminates the complex sleeve mechanism, parallel link mechanism, and multiple cylinder mechanisms from the tool changer design. By using a simpler tool holding part that directly holds tools parallel to the spindle axis and moves them along a circular arc path, the invention achieves tool change capability with significantly reduced structural complexity.
Data Source
AI summary
A tool holding part holds two boring bars in a manner in which axes of the boring bars are parallel to a spindle axis. A tool change mechanism has a circular arc movement mechanism in which the boring bar moves from a tool holding position to a tool change position by at least a circular arc movement on a plane surface including an axis of the spindle in the tool change position and an axis of the boring bar positioned in the tool holding part.