Middle-small modulus gear high-frequency hardening production line automatic control system and method

Abstract

The automatic control system and control method of the high-frequency quenching production line of small and medium modulus gears are composed of a programmable logic controller PLC host, AD and DA function modules and a touch screen. The input terminals of the PLC host and the AD module collect and process various signals from the production line Finally, each link in the production line is controlled through output terminals and DA function modules to realize real-time control of the production line. The invention has two modes of manual control and automatic operation. The touch screen is set for real-time monitoring and processing parameters can be conveniently adjusted at the same time. It can count shifts and cumulative output, record production conditions, and display alarm information. The device has a high degree of automation in production, can precisely control the gear quenching temperature, significantly improves the quality and output of products, and also improves the working environment, reduces the labor intensity of workers, and reduces production costs. It is especially suitable for large-scale production occasions.

Description

(1) Technical field [0001] The invention relates to an automatic control system and a control method of a high-frequency quenching production line for small and medium modulus gears, and belongs to the technical field of high-frequency quenching processing of gears. (2) Background technology [0002] my country's gear induction hardening has had a glorious history as a hard tooth surface heat treatment process. A large number of machine tool gears, automobile tractor gears, mining machine gears and general reducer gears all use induction hardening. The corresponding high-frequency power supply and various quenching machine tools It is also relatively complete. In the late 1990s, a solid-state high-frequency induction heating power supply was developed and can realize the numerical control of quenching machine tools. At present, there are several high-frequency equipment companies in China that supply induction hardening machine tools with their leading products, solid-state h...

AI Technical Summary

Problems solved by technology

At present, there are several high-frequency equipment companies in China that supply induction hardening machine tools with their leading products, solid-state high-frequency induction heating power supplies, and provide online technical services. The processing methods adopted are: quenching machine tools are mostly controlled by PLC, gear surface quenching process The parameters are stored in the PLC in the form of a program, and the timing heating method is generally used. There is no infrared temperature measurement system, and the quenching temperature cannot be accurately controlled.

In addition, its production line mainly relies on manual loading and unloading, the labor intensity of the workers is high, the work efficiency is low, the working environment is harsh (the quenching liquid volatilizes toxic substances), it is harmful to human health, the degree of automation is low, and the product quality is difficult to control

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