AVIC Xi'an Aircraft Industry Group applies for patents related to G-code conversion methods, enabling automatic conversion of G-codes for CNC machines with different number of rotary axes

April 2 News, the State Intellectual Property Office information shows that China Aviation Xi’an Aircraft Industry Group Co., Ltd. has applied for a patent titled “Automatic G-code Conversion and Vector Calculation Method.” The application publication number is CN121764470A, the application number is CN202511804990.9, the publication date is March 31, 2026, and the filing date is December 3, 2025. The inventors are Wang Zhen, Fan Di, Zhou Zhi Kang, Wang Yuguang, Meng Xianben, Liu Xueliang, Zhao Liang, Zhang Yanyan. The patent agency is China Aviation Patent Center, patent agent Wen Huijuan. The classification codes are G06F8/40, G06F8/41, G06F17/10, G06F17/16.

The patent abstract indicates that the invention relates to the field of CNC machining of aircraft components, specifically a method for automatic G-code conversion and vector calculation. It includes: analyzing the structural features of the original and target machine tools and deriving tool vector formulas and swing angle formulas suitable for both; extracting swing angle data from the original machine tool’s G-code processing program; using the original tool vector formula and extracted swing angle data to calculate the corresponding i, j, k vector values, then substituting into the target machine’s swing angle formula to derive the required swing angles; performing swivel radius processing based on whether the original and target machine tools have swivel radius to meet the machining requirements; generating new G-code programs suitable for the target machine based on the derived swing angles and processed actual machining coordinate values, completing automatic G-code conversion and vector calculation. This achieves automatic conversion of G-code for CNC machines with different number of swing axes.

China Aviation Xi’an Aircraft Industry Group Co., Ltd. was established on June 18, 1997, and listed on the Shenzhen Stock Exchange on June 26, 1997. Its registered and office address is in Xi’an, Shaanxi Province. It is a leading enterprise in domestic large aircraft manufacturing, with core businesses covering military and civil aircraft components and complete aircraft, possessing a full industry chain with differentiated advantages.

The company’s Shenwan industry classification is Defense Military Industry - Aerospace Equipment II - Aerospace Equipment III, involving sectors such as AVIC Group, AVIC-related concepts, Airbus concepts, etc. Its main businesses include R&D, production, sales, maintenance, and services of military large and medium-sized aircraft, landing gear, wheel brake systems, and other civil and military aviation components, as well as products related to transportation equipment industry, building materials industry, and other sectors.

In 2025, China Aviation Xi’an Aircraft Industry Group achieved operating revenue of 41.01B yuan, ranking third among 21 industry companies, higher than the industry average of 11.47B yuan and median of 3.7B yuan, but below the first-place AVIC Aero-Engine Power’s 46.33B yuan and second-place AVIC Shenyang Aircraft’s 44.66B yuan. In main business, aerospace product revenue was 40.55B yuan, accounting for 98.86%. The net profit for the period was 1.15B yuan, also ranking third in the industry, above the industry average of 532 million yuan and median of 252 million yuan, but below the first-place AVIC Shenyang Aircraft’s 3.54B yuan and second-place AVIC Inertial Navigation’s 1.34B yuan.

Recent patent status of China Aviation Xi’an Aircraft Industry Group Co., Ltd.:

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