An eccentric grinding tool and method of use

By cooperating with the radial positioning shaft and the end face positioning shaft, and using the internal guide cone surface for automatic alignment, the clamping problem of alloy valve seat products is solved, achieving rapid and accurate positioning and efficient processing, reducing costs and improving production efficiency and product quality consistency.

CN122142838APending Publication Date: 2026-06-05ZIGONG CEMENTED CARBIDE CORP

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZIGONG CEMENTED CARBIDE CORP
Filing Date
2026-03-17
Publication Date
2026-06-05

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    Figure CN122142838A_ABST
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Abstract

The application discloses an eccentric grinding tool and a use method, which comprise a radial positioning shaft, the outer diameter of which is matched with the inner hole of a workpiece, and the radial positioning shaft is used for penetrating into the inner hole to realize radial positioning of the workpiece; an end face positioning shaft, the upper end of which is fixedly connected with the lower end of the radial positioning shaft, and the axial center line of the end face positioning shaft is provided with an eccentric distance which is equal to the eccentric distance of the workpiece, and the end face positioning shaft is used for abutting against the lower end face of the workpiece to realize end face positioning of the workpiece; a locating cone sleeve, which is provided with an inner hole for accommodating the end face positioning shaft, and the upper hole of the inner hole is provided with an inner guide conical surface; and a locking nut, which is screwed on the upper end of the radial positioning shaft and is located above the workpiece. The application not only solves the technical problems of "difficult clamping and difficult alignment" of eccentric parts, but also realizes significant improvement from four aspects of cost control, machining efficiency, positioning accuracy and operation convenience, and is a technical scheme with high practical value and strong creativity.
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