Numerical control machining clamping and positioning device for large thin-wall conical shell part

Abstract

The invention provides a numerical control machining clamping and positioning device for a large thin-wall conical shell part and belongs to the technical field of numerical control machining. The numerical control machining clamping and positioning device aims at solving the problems that when machining is conducted without an external clamping and fixing tool, the final size is difficult to guarantee, the part scrapping phenomenon is likely to happen, and the amount of feed is usually reduced in order to avoid the situation, so that machining efficiency is low, time is wasted, and the period is long. A conical barrel is supported on a workbench through supporting bolts of the clamping and positioning device, and the large-diameter end of the conical barrel is placed upwards; the machined workpiece is placed in the conical barrel, and the machined workpiece and the conical barrel are coaxially arranged; and a large-end conical ring liner plate is pressed on a large-end conical stop opening of the machined workpiece, and the machined workpiece is axially fixed through pressing plate bolts and pressing plates. It is guaranteed that the machined thin-wall conical shell part is not deformed in the machining process; angular reference alignment is convenient, and axial positioning is accurate; the structure is simple, and clamping and fixing are reliable; and the manufacturing period is short, and cost is low.

Description

technical field [0001] The invention relates to a clamping and positioning device for a large thin-walled conical shell part, belonging to the technical field of numerical control processing. Background technique [0002] At present, there is no good solution for the processing of large thin-walled parts, especially the processing of large thin-walled conical shell parts is even more difficult. During the processing, parts are prone to local deformation or damage Then it is scrapped, and even if the processing is completed, the size of the parts after processing will not be well guaranteed, because the processing of other sizes will be affected during the local deformation of the parts. [0003] In the case of processing without external clamping and fixing tooling, the resulting size is difficult to guarantee, and parts scrapping is prone to occur. In order to avoid this situation, the amount of feed is usually reduced, resulting in low processing efficiency, waste of time,...

AI Technical Summary

Problems solved by technology

[0002] At present, there is no good solution for the processing of large thin-walled parts, especially the processing of large thin-walled conical shell parts is even more difficult. During the processing, parts are prone to local deformation or damage Then it is scrapped, and even if the processing is completed, the size of the part after processing will not be well guaranteed, because the

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