Pre-pressing type spherical surface floating clamping head

Abstract

The invention provides a pre-pressing type spherical surface floating clamping head which comprises a clamping body. A central clamping unit is installed in the center of the end face of one side of the clamping body, and a plurality of edge clamping units which are evenly distributed are installed around the central clamping unit; a central spherical surface entering the clamping body is mountedat the other end of the clamping body, a floating supporting plate is arranged between the central spherical surface and the central clamping unit, and a spherical surface groove matched with the central spherical surface is machined in the side, close to the central spherical surface, of the floating supporting plate; and a pre-tightening disc spring set is arranged on the central clamping unit,an edge pre-tightening spring is installed on each edge clamping unit, and the edge pre-tightening springs push edge ball mills of edge push rods to be connected with a limiting face of the floating supporting plate. According to the clamping head, it can be guaranteed that the center line of a silicon rod coincides with the center line of the clamping head, and the grinding machining precision ofthe silicon rod is guaranteed.

Description

technical field [0001] The invention relates to the technical field of clamping silicon rods, in particular to a clamping head for axially clamping silicon rods, in particular to a preloaded spherical floating clamping head. Background technique [0002] The clamping head is used for axial clamping of the workpiece when grinding the workpiece. Before clamping, the workpiece is transported to the clamping station by the automatic centering device, and the workpiece can be ground after being clamped by the clamping heads at both ends. Since there may be a 2mm inclination difference between the two ends of the workpiece, when the workpiece is clamped, when the centering device is released, the workpiece will always undergo a slight change, thereby destroying the original positioning accuracy, and the left and right clamping heads. The force on the three clamping points is uneven, and the workpiece will also produce slight fluctuations during grinding, which affects the quality...

AI Technical Summary

Problems solved by technology

Since there may be a 2mm inclination difference between the two ends of the workpiece, when the workpiece is clamped, when the centering device is released, the workpiece will always change slightly, thereby destroying the original positioning accuracy, and the left and right clamping head The force on the three clamping points is uneven, and the workpiece will also produce slight fluctuations during grinding, which affects the quality and accuracy of grinding

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