Toolholder
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- Categories
- Advanced Manufacturing
- Summary
- A Wayne State University researcher has developed a novel toolholder device used to connect a cutting tool with the main structure of a machine tool, such as a machining center or turret of a lathe. The toolholder provides a reliable tool clamping design, ensuring that required power can be transmitted to the cutting zone. In addition, the design yields a precise connection in terms of coaxiality between the tool and the toolholder.
The toolholder has an all-mechanical design, and does not require hydraulics, bushings, or heat clamp joints. The design employs a clamping sleeve that is integral with toolholder body. The sleeve has tapered external surface separated from a tapered internal surface by a thin rubber layer.
Tools are clamped by turning an actuating nut, in a threaded engagement with toolholder body. An actuating sleeve is pushed along clamping sleeve to generate a radial distributed force between the clamping sleeve and the tool. An antifriction bearing or a sliding bearing reduces friction. The axial motion of the actuating sleeve shears deformation in elastomeric layer (laminate) and creates significant mechanical advantage since the wedge-like interaction between tapers of the internal surfaced of the holder takes place without any friction.
- File number
- 06-791
- Publications
- Patentability is currently being assessed.
- Contact
- Lori Simoes
Technology Licensing Manager
Phone: 313-577-5541
Fax : 313-577-2814
lori.simoes@wayne.edu