Special-shaped parts processing method, jig and jig design method

Abstract

The invention provides a five-axis milling combined positioning processing method, a fixture and a fixture design method that can realize the space multi-position degree control requirements of special-shaped parts. Among them, the positioning method is to use the fixture to first determine the processing elements of the workpiece to locate the position of the workpiece, and then adjust the direction of the fixture to find the existing surface of the workpiece to clamp the workpiece through the position of the workpiece, and the clamping operation is completed in one step. The present invention breaks the existing processing idea of ​​first positioning and clamping the workpiece on the workbench with an unstable surface, and then gradually adjusting the direction of the fixture through measuring tools or simulated processing methods to adjust the workpiece to align the processing elements. Due to the complex structure of the workpiece in the existing processing method, the operator often adjusts the fixture for many times to find the processing position. However, after adopting the method and fixture of the present invention, the positioning is accurate and convenient, the clamping is stable and reliable, the adjustment is convenient, and the work efficiency is improved. High, stable product manufacturing quality.

Description

technical field [0001] The invention relates to a five-axis milling combined positioning processing method, a fixture and a fixture design method that can realize the multi-position degree control requirements in space for special-shaped parts, in particular to a space position degree control for multi-space elements, and The shape is not correct, the reference is unstable, and the workpiece that can be used as the processing positioning reference cannot be found on the external body. The positioning method, fixture design method and fixture used for positioning processing. Background technique [0002] Due to the increasingly fierce international competition and the increasingly tense situation, the development of military weapons is also one of the fields of competition. With the development of science and technology, various new weapons are constantly upgraded. Components came into being. In order to meet performance requirements and ensure powerful functions, components...

AI Technical Summary

Problems solved by technology

However, special-shaped, spatially multi-position controlled parts do not have existing positioning datums or lines

Especially for sheet-welding parts and castings, the tolerance size and shape are unstable, and its shape itself has a surface or line, but its relationship with the processing position is unstable, or the surface is too small to meet the positioning elements. Reluctantly, it is easy Caused by inaccurate positioning, the processing size after machining is out of tolerance or the multi-space position after processing is poorly coordinated with the entire workpiece, there is an offset, or positioning is difficult, the operation process is slow, and the efficiency is not high

Images