Basic principle of thermal expansion tool handle:
Heat the front end of the knife handle to expand it and load it into the knife.
After that, it is cooled and contracted to grip the tool.
advantage:
① High accuracy and reliability
Compared to the previously widely used collet type tool holders, the number of components is minimal, enabling high rigidity and precision tool clamping. The tool clamping accuracy is only a few at the clamping mouth of the fixture μ Within m and with high repetition accuracy, there is no need for proficiency requirements for tool clamping operations and measurement for accuracy confirmation. The use of thermal expansion tool handles can simplify tool assembly and disassembly operations and improve reliability.
② Extend tool life
High rigidity clamping with low runout can stabilize and extend the service life of the tool.
③ High precision machining
Low runout ensures stable cutting, thereby achieving high-precision machining.