A vibration-damping clamping tool for large thin-walled parts

Abstract

The present invention proposes a vibration damping clamping tool for large thin-walled parts, which is used to solve the problems of complex structure, inconvenient installation and disassembly, low positioning accuracy, poor clamping quality, self-excited vibration and Due to its own state and thermal stress in the process of processing, thin-walled workpieces are deformed, and technical problems such as the inability to meet the clamping and use requirements of thin-walled workpieces of different sizes. The invention comprises a positioning base plate, on which a thin-walled workpiece is arranged, a pressing assembly is arranged on the upper part of the thin-walled workpiece, and a main pull rod is arranged axially inside the thin-walled workpiece, and the two ends of the main pull rod are connected with the positioning base plate and the positioning base plate respectively. The pressing assembly is fixedly connected, and several groups of holding assemblies are arranged on the main pull rod, and the holding assemblies cooperate with the thin-walled workpiece. The invention can not only improve the positioning and clamping quality of the thin-walled workpiece, but also relieve the self-excited vibration in the processing process, and avoid deformation of the thin-walled workpiece due to the state of the material itself and thermal stress in the processing process.

Description

technical field [0001] The invention relates to the technical field of machining fixtures, in particular to a vibration-damping clamping tool for large thin-walled parts. Background technique [0002] Large-scale rotary thin-walled parts have been widely used in the construction machinery industry. It has the characteristics of light weight, compact structure, and material saving. Because it plays an important role in mechanical assembly, it must ensure a high degree of precision during processing. Dimensional accuracy and surface roughness. However, the large diameter and thin wall thickness of large rotary thin-walled parts lead to poor rigidity and weak strength, and are prone to deformation and vibration under the action of clamping force and cutting force. The workmanship is poor. However, the existing fixtures for thin-walled parts have a complex overall structure, are not easy to install and disassemble, have low positioning accuracy, poor clamping quality, and are ...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the technical problems of existing thin-walled fixtures such as complex structure, inconvenient installation and disassembly, low positioning accuracy, poor clamping quality, self-excited vibration and deformation, and inability to meet the clamping and use requirements of thin-walled workpieces of different sizes, the present invention A vibration damping and clamping tool for large thin-walled parts is proposed, which can not only improve the positioning and clamping quality of thin-walled workpieces, but also alleviate the self-excited vibration in the process of processing, and avoid factors such as the state of the material itself and thermal stress in the process of processing. Causes deformation of thin-walled workpieces

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