Adjustable thin-wall shell vibration-reduction clamping device and operation method

Abstract

The invention discloses an adjustable thin-wall shell vibration-reduction clamping device and an operation method. The clamping device comprises a mandrel and a plurality of supporting wheels; one endof the mandrel is of a cone frustum structure matched with a center hole of a three-jaw chuck; the plurality of supporting wheels are arranged on the mandrel in parallel, and the supporting wheels are coaxial with the mandrel; and annular grooves are formed in the cylindrical side faces of the supporting wheels, and rubber rings are arranged in the grooves. The clamping device is simple and compact in structure, low in cost and convenient to operate; the multiple supporting wheels on the mandrel are adopted for supporting the inner wall of a thin-wall shell, the thin-wall shell is positionedin the radial direction, and the thin-wall shell is positioned in the axial direction through a tailstock center of a machine tool; the clamping reliability is high, and finish turning and finish milling of the appearance characteristics of the thin-wall shell can be completed efficiently; and the positions of the supporting wheels can be adjusted on the mandrel, the supporting wheels can be conveniently adjusted to the appearance characteristic position to perform supporting, the supporting wheels can be replaced, and machining of thin-wall shells of different types is facilitated.

Description

technical field [0001] The invention belongs to the technical field of thin-walled workpiece processing, and in particular relates to an adjustable thin-walled shell vibration-damping clamping device and an operation method. Background technique [0002] Due to the poor rigidity of the thin-walled shell, it will be deformed by clamping during turning processing. Therefore, it is difficult to achieve processing accuracy and the processing quality of the product cannot be guaranteed. Although the existing processing jigs for thin-walled shells have improved the machining accuracy of thin-walled shells, the quality of products has been guaranteed to a certain extent. However, for a thin-walled shell with a large aspect ratio, the material is ultra-high-strength steel, and the outer dimension of the part has strict angular relationship and position requirements with the hole and groove characteristics of the external part, the relative rigidity of the part is low, and the proces...

AI Technical Summary

Problems solved by technology

However, for a thin-walled shell with a large aspect ratio, the material is ultra-high-strength steel, and the outer dimension of the part has strict angular relationship and position requirements with the hole and groove characteristics of the external part, the relative rigidity of the part is low, and the processing technology is poor. , the hardness after quenching is relatively high, and under the joint action of cutting force, cutting heat, residual stress and clamping force, it is easy to produce processing deformation, and it is difficult to control the processing accuracy

The existing processing fixtures for thin-walled shells are difficult to meet their processing requirements

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