Flexible locating and combined locking type rough turning clamp of large thin-wall flange

Abstract

The invention relates to a turning clamp, in particular to a flexible locating and combined locking type rough turning clamp of a large thin-wall flange. The flexible locating and combined locking type rough turning clamp comprises a bottom disc, a flexible locating device used for locating the end face of a flange blank, a floating type clamping device used for clamping an inner hole and an outercircle of the flange at the same time and a combined locking device used for fixing the flexible locating plane of the flexible locating device. The flexible locating device comprises a soft rubber locating disc and multiple rigid guide columns perpendicular to the end face of the soft rubber locating disc, wherein the soft rubber locating disc and the multiple rigid guide columns are mounted onthe bottom disc. The upper end parts of the rigid guide columns and the soft rubber locating disc are connected into a whole. The combined locking device is connected with the lower ends of the rigidguide columns so as to be used for locking and loosening the rigid guide columns. According to the flexible locating and combined locking type rough turning clamp, the flange is located and fixed in afree deformation-free state, the planeness of the machined flange plane is good, and the flange plane can be used as a high-quality locating datum plane during subsequent finish machining.

Description

technical field [0001] The invention relates to a vehicle clamp, in particular to a flexible positioning and joint locking type rough vehicle clamp for a large thin-walled flange. Background technique [0002] Flanges are widely used in industrial equipment, and the most commonly used flange material is carbon steel. In many important applications, flanges are required to have high dimensional accuracy and geometric tolerance accuracy, including better roundness of the inner and outer circles of the flange, better flatness of the flange itself, and better flatness of the flange itself. The hole and the outer circle must have good concentricity, the upper plane and the lower plane of the flange must have better parallelism, etc. [0003] In the prior art, for the processing of large thin-walled flanges, a vertical lathe is usually used for lathe processing, specifically, a universal chuck or a special clamping tool installed on the vertical lathe workbench is used to fix the...

AI Technical Summary

Problems solved by technology

At present, when the existing lathe processing technology is used for rough turning of the flange, the clamping generally adopts a four-jaw or three-jaw chuck to clamp the shape or the inner hole, and at the same time, the blank end face of the lower end of the flange is supported by a height adjustment screw. This clamping method cannot avoid the deformation of the inner and outer circles of the flange and the plane of the flange, which will bring great troubles to the subsequent finishing turning process, making the positioning reference of the flange during the finishing turning bad, and easily causing the finishing turning. Out of tolerance of roundness and flatness of back flange

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