Complex structural precision casting line-marking inspection device and method

Abstract

The invention discloses a complex structural precision casting line-marking inspection device, which comprises a tool chassis. A plurality of positioning pins matched with angular positioning holes inthe end faces of precision castings are arranged at the top of the tool chassis, a central spindle is rotationally assembled at the center of the top of the tool chassis, a plurality of first markingneedles are assembled on the outer surface of the central spindle and correspond to the multiple axial sizes of the to-be-checked precision castings correspondingly, a crossbeam is rotationally assembled at the top of the central spindle, a plurality of second marking needles are assembled at the bottom of the crossbeam and correspond to the multiple radial sizes of the to-be-checked precision castings correspondingly, a plurality of supports are arranged at the periphery of the tool chassis, profile sample plates are slidably assembled on the multiple supports in the radial direction of thetool chassis, and the multiple profile sample plates correspond to a plurality of profiles of the outer surfaces of the to-be-checked precision castings correspondingly. An untrimmed material residuecheck method for the precision castings of a complex structure is changed fundamentally and thus is improved greatly, the operation difficulty is greatly reduced, and the machining efficiency and theinspection quality are improved.

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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