Self-compensation type floating three-jaw power chuck for cylindrical grinding machine

Abstract

The invention discloses a self-compensation type floating three-jaw power chuck for a cylindrical grinding machine. The self-compensation type floating three-jaw power chuck comprises a shell, a bearing connecting unit and a floating clamping unit. The shell comprises a center sleeve axially provided with a center through hole and an outer shell arranged outside the center sleeve in a sleeving manner. A containing cavity is formed between the center sleeve and the outer shell. The bearing connecting unit is arranged in the containing cavity and comprises a roller pin one-way bearing, a middle bearing sleeve and a rolling bearing. The roller pin one-way bearing is arranged on the outer circle of the center sleeve in a sleeving manner, the middle bearing sleeve is fixed to the outer circle of the roller pin one-way bearing, and the rolling bearing is arranged on the outer circle of the middling bearing sleeve in a sleeving manner and connected with the inner circle of the outer shell. The floating clamping unit comprises a floating disc and clamping jaws arranged on the outer end face of the floating disc and used for clamping a workpiece. The floating disc is arranged on the end face of the outer shell through a gland in a floating manner. The design of sealing structures is achieved on the front portion and the rear portion of the containing cavity, and accordingly cutting fluid and other pollutants are prevented from entering the containing cavity during using. According to the self-compensation type floating three-jaw power chuck, a machine tool and robot automatic feeding and discharging system can conveniently conduct production exchange adjustment, the production exchange time is saved, and production exchange errors are avoided.

Description

technical field [0001] The invention relates to the field of grinding fixtures, in particular to a self-compensating floating three-jaw power chuck for an outer cylindrical grinding machine. Background technique [0002] The existing workpiece clamping device for cylindrical grinding machines generally uses a chicken heart chuck to manually clamp the workpiece before the workpiece is placed on the machine tool. The sweetheart chuck and the workpiece rotate together, and the angular position of the sweetheart chuck and the headstock lever needs to be considered during installation. The existing sweetheart chuck adopts a circular eccentric cam to clamp the workpiece, and the clamping range is small without manual adjustment. For the growing automatic loading and unloading system of machine tool robots, this traditional clamping method cannot be easily applied to the automatic loading and unloading system of machine tool robots, which greatly hinders the application and promot...

AI Technical Summary

Problems solved by technology

The existing chicken heart chuck adopts a circular eccentric cam to clamp the workpiece, and the clamping range is small without manual adjustment

For the growing automatic loading and unloading system of machine tool robots, this traditional clamping method cannot be easily applied to the automatic loading and unloading system of machine tool robots, which greatly hinders the application and promotion of automatic loading and unloading systems of grinding machine robots

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