A real-time control expert system, design method and application method for the whole process of free forging of shaft forgings
An expert system and real-time control technology, applied in general control systems, control/regulation systems, program control, etc., can solve problems such as large quality fluctuations, many influencing factors, and the degree of mechanization and automation needs to be improved, so as to achieve product consistency. poor sex effect
Active Publication Date: 2022-06-28
HARBIN INST OF TECH
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Problems solved by technology
The production efficiency of manual free forging production method is low, and the degree of mechanization and automation still needs to be improved
The free forging process often requires multiple forging passes, and the shape and size of the forgings are affected by manual operations, resulting in unstable quality and poor consistency of forgings
Aviation shaft forgings have high requirements for product consistency and reliability, which cannot be met by traditional manual free forging.
[0003] For this reason, automatic forging research has been carried out at home and abroad, but most of the research is limited to the automation of blank blanking, heating, die forging, edge trimming and finishing. There are few researches on free forging of shaft forgings, and it is difficult to realize the above-mentioned Target
Compared with the die forging process, the drawing length of free forging has more influencing factors, the process is complex, the operation stability is poor, and the quality fluctuation range is large. There may be dimensional deviations in the forging process that need to be adjusted in real time. Simple automation is difficult to obtain consistent and reliable results. Shaft forgings, so it is necessary to carry out intelligent forging research and real-time control during the forging process
The key to intelligent free forging lies in the establishment of an expert system that can realize real-time control of the whole process of free forging, and the construction of an expert system requires a large amount of simulation and experimental data, and the establishment of related algorithms. There is little research on the intelligent forging expert system of the free forging process in China
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[0039] Below in conjunction with the accompanying drawings and through specific embodiments, the technical solutions of the present invention will be further described:
[0040] The traditional manual drawing method relies on the experience of the craftsman, and the process parameters are difficult to guarantee, and defects such as axis bending and surface cracks are prone to occur, resulting in poor product consistency and low qualification rate. figure 1 For the transition zone folding defect, figure 2 is the axis bending defect, image 3 It is an end-face crack defect.
[0041] combine Image 6 Description, an expert system for real-time control of the whole process of free forging of shaft forgings, the expert system has a data query function module and a forging production function module; the data query function module stores process information, equipment information, forging information, mold tooling information, Optimize process plan and material parameter data; f...
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Abstract
A real-time control expert system, design method and application method for the whole process of free forging of shaft forgings. The design method includes: 1. Determine the free forging process plan; 2. Build an intelligent decision-making algorithm; 3. Design an expert system; 4. Build a shaft Free forging process library and knowledge base for forgings; 5. Combining intelligent decision-making algorithms and knowledge bases to build a real-time control expert system for the whole process of shaft forging free forging; application methods include: 1. Embed the expert system into the host computer, and communicate with PLC, forging Communication between the robot and the inspection robot; 2. Pre-forging inspection; 3. Free forging and real-time optimization of the whole process; 4. Post-forging inspection: Record the time of the whole process of free forging, detect the final forging temperature, and check the shape, size and structure of the forging. The real-time control expert system and the design and application method of the whole process of free forging of shaft forging built by the invention can carry out real-time control of the free forging process of shaft forging.
Description
technical field [0001] The invention relates to the technical field of forging quality control, in particular to a real-time intelligent control expert system, a design method and an application method for the whole process of free forging of shaft forgings. Background technique [0002] Shaft forgings are the key force-bearing parts of rotating bodies used to transmit torque or motion. They are widely used in aviation, aerospace, shipbuilding and other fields, and their forming is generally artificial free forging. The production efficiency of manual free forging production method is low, and the degree of mechanization and automation still needs to be improved. The free forging process often requires multiple passes of forging, and the shape and size of forgings are affected by manual operations, resulting in unstable quality and poor consistency of forgings. However, aviation shaft forgings have high requirements on product consistency and reliability, which are difficul...
Claims
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IPC IPC(8): B21K1/06B21J5/06G05B19/05
CPCB21K1/06B21J5/06G05B19/054
Inventor 袁林徐书聪单德彬
Owner HARBIN INST OF TECH