Device and method for scribing line inspection of precision castings with complex structure

Abstract

A line marking inspection device of complex structure precision castings, including a tooling chassis, the top of the tooling chassis is provided with a number of positioning pins that match the angular positioning holes on the end face of the precision casting, the center of the top of the tooling chassis is rotatably equipped with a mandrel, and the outer surface of the mandrel is It is equipped with several first marking needles, which respectively correspond to several axial dimensions of the precision casting to be inspected. The top of the mandrel is rotated and equipped with a crossbeam, and the bottom of the crossbeam is equipped with several second marking needles. The two marking needles correspond to several radial dimensions of the precision casting to be inspected respectively. Several supports are arranged on the outer periphery of the tooling chassis, and profile templates are respectively slid on the several supports along the radial direction of the tooling chassis. The several profile templates are respectively Corresponding to several profiles of the outer surface of the precision casting to be inspected; the present invention fundamentally changes the inspection method of the remaining wool of the precision casting with complex structure, greatly improves the inspection method of the remaining wool, greatly reduces the difficulty of operation, and improves Improved processing efficiency and inspection quality.

Description

technical field [0001] The invention belongs to the technical field of aero-engine casing processing, and in particular relates to a line-marking inspection device and method for precision castings with complex structures. Background technique [0002] In the process of machining parts with wool as precision castings, due to the complex structure of the parts and the difficulty of wool casting, the wool used is prone to insufficient local allowances. In order to meet the processing needs of the parts, the castings need to be machined before machining. Cross-line inspection to determine whether the machining allowance can meet the machining requirements. [0003] In the previous line marking inspection work, the fitter used common tools such as indexing disc, vernier caliper, and height gauge to carry out the line marking inspection on the fitter's table. The entire machining process requires the operator to perform a large number of dimensional calculations, and is complete...

AI Technical Summary

Problems solved by technology

Therefore, this scribing method has extremely high requirements on the operator's operation level and processing experience, which makes the scribing inspection process more difficult and the processing efficiency is always low. On average, a single part scribing inspection takes 12 hours

This processing status has kept the processing technology of parts at a backward level, failing to realize high-efficiency and high-precision processing in the true sense, resulting in low production efficiency, high cost, and poor processing quality.

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