Spindle Tool Pull Push Coupling for Freeform Machining
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Solution Overview
Problem
Existing spindle/tool combinations for machine tools lack efficient mechanisms for variable machining of workpieces, particularly in compact designs that allow for both forward and return travel movements with defined rod positioning, which limits their ability to perform complex machining processes like freeform face machining.
Innovation Solution
A spindle/tool combination featuring a pull/push coupling device with a clamping jaw integrated in the tool, allowing for bracing of the rod during both forward and return travel movements without the need for a resetting device, enabling compact tool design and fluid passage optimization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional spindle/tool combination is used, then the tool structure is simple, but the tool cannot perform complex machining processes like freeform face machining during return travel movements
Solution Approach 1:
The rod is designed to be linearly movable within the tool body, allowing dynamic adjustment of the tool element position during both forward and return travel movements. This dynamic capability enables complex machining processes without requiring a completely different tool structure for different operations.
Solution Approach 2:
The tool is designed to perform multiple machining operations during both forward and return travel movements. The pull/push coupling device and movable rod configuration allow the same tool structure to execute diverse machining processes including freeform face machining, eliminating the need for separate specialized tools.
2Adaptability or versatility
If a resetting device is added to enable return travel machining, then the machining versatility improves, but the tool design becomes more complex
Solution Approach 1:
The pull/push coupling device integrates both the coupling function and the rod bracing function into a single mechanism. The clamping jaw simultaneously couples the rod to the loading device and provides bracing during both forward and return travel movements, eliminating the need for separate resetting devices or additional bracing mechanisms.
Solution Approach 2:
The clamping jaw is designed to automatically brace the rod during both forward and return travel movements without requiring external resetting devices. The loading device directly acts on the rod through the pull/push coupling device, enabling the system to serve its own positioning needs during bidirectional operations.
3Volume of moving object
If the tool design is made compact, then the fluid passage optimization improves, but the rod positioning mechanism becomes more constrained
Solution Approach 1:
The rod is positioned within the tool body in a nested configuration, allowing the linearly movable rod to traverse through the compact tool structure. This nesting arrangement enables fluid passages to be optimized within the compact volume while maintaining the rod's positioning flexibility through the pull/push coupling mechanism.
Data Source
AI summary
A spindle/tool combination for a machine tool is provided, including a tool, a spindle, on which the tool can be releasably fixed and by means of which the tool can be rotated, wherein the tool has at least one linearly movable rod and the spindle comprises a loading device, which acts on the at least one linearly movable rod of the tool, and a pull/push coupling device, by means of which the at least one rod of the tool can be coupled to the loading device, the at least one rod being actuable by means of the loading device by pushing and pulling when coupled, wherein the pull/push coupling device comprises a clamping jaw and the clamping jaw is arranged in the tool.