Tool and method for machining thin-wall tubular part

Abstract

The invention discloses a tool and method for machining a thin-wall tubular part. The tool comprises a clamp ring (4). Fastening lugs (2) are arranged at the head end and the tail end of the clamp ring (4) and are provided with fastening holes. Bolts (3) are mounted in the fastening holes. Nuts (1) are in threaded connection to the bolts (3), and the fastening lugs (2) are fastened through the bolts (3). The tool has the advantages that in the clamping process, the function of roundness correction is achieved, meanwhile, the local rigidity during machining of the thin-wall tubular part is improved, subsequent machining is facilitated, the phenomenon of machining shaking generated by insufficient rigidity is avoided, and the smoothness of the part machined surface is greatly improved.

Description

technical field [0001] The invention relates to the field of tooling, in particular to a tooling and method for processing thin-walled tubular parts. Background technique [0002] Thin-walled parts are prone to deformation during processing, which affects subsequent processing and final use needs. This paper introduces a simple clamp tool to correct the shape of thin-walled parts and use it as an auxiliary clamping tool to ensure the machining accuracy at the local assembly position of the part and meet the final use requirements. [0003] processing image 3 When the steps at both ends of the thin-walled pipe part shown are round (installation size), the machining removal amount of the part is relatively large (the "skylight" is opened almost in the entire length range), and the "opening" of the part becomes oval after the "skylight" is opened. It brings great difficulties to subsequent processing of the step circles at both ends. [0004] If only simple concave-convex to...

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Problems solved by technology

[0003] processing image 3 When the steps at both ends of the thin-walled pipe part shown are round (installation size), the machining removal amount of the part is relatively large (the "skylight" is opened almost in the entire length range), and the "opening" of the part becomes oval after the "skylight" is opened. It brings great difficulties to the subsequent processing of the step circles at both ends

[0004] If only simple concave-convex tooling is used to clamp the tubular part, the deformation of the part itself cannot be solved, and the uneven wall thickness will appear after processing the steps at both ends. In case of large processing deformation, the concave-convex mold cannot effectively eliminate the deformation of the tubular part; In addition, when the wall thickness of the part is relatively thin, the rigidity of the part itself is poor, and the phenomenon of "chattering" is easy to appear when the steps at both ends are processed, and the surface finish of the processing is poor.

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