Method for producing chain pits of round-link chain

Abstract

The invention discloses a method for producing chain pits of a round-link chain. The method includes steps of adopting the center of a bottom plane of a chain pit as the origin of a programming coordinate system; programming an R code program or a FANUC numerical control system user macro program, computing coordinates of circle centers of arcs of teeth of the chain pit, coordinate values of intersections of the arcs of the teeth of the chain pit and circles of tooth roots of the chain pit by the aid of the program, and determining processing tracks; completing cutting periodic motion from the programmed origin by a cutter; and computing the arcs of the teeth and arcs of the tooth roots again by the program after the cutting periodic motion is completed, processing the arcs of the teeth and the arcs of the tooth roots on one side of the chain pit along the processing track for arcs of tooth surfaces of the side of the chain pit, then processing the arcs of the teeth and the arcs of the tooth roots on the other side of the chain pit along the processing track of the arcs of tooth surfaces of the other side of the chain pit, returning the cutter to the programmed origin, and repeating the procedures until processing is completed. The processing program has excellent easy modifiability and readability, and is simple, convenient, flexible and short, parts in the same type can be processed, and the method is extremely high in universality.

Description

technical field [0001] The invention relates to a production method of a chain nest, in particular to a production method of a circular chain chain nest. Background technique [0002] The sprocket shaft assembly is an important part of the coal mine scraper conveyor or idling loader. The sprocket is the key part of the sprocket shaft assembly. It is installed on the head frame of the scraper conveyor and connected to the reducer, and is dragged by the reducer. The scraper chain of the sprocket shaft assembly runs in the middle hole of the conveyor to convey raw coal, realizing the mechanization of coal mining work and transportation. [0003] As the main core component, the sprocket is a combination of multiple positions and multiple involutes in the tooth portion, and the processing accuracy of the chain pocket of the tooth portion directly affects the quality and service life of the sprocket. The traditional processing methods of ring sprocket chain pockets are casting / fo...

AI Technical Summary

Problems solved by technology

Although the above method can process complex curved surfaces, the automatic programming program is relatively large, and the compiled program is not easy to modify. As long as any parameter changes during the processing process, the modeling must be re-programmed to calculate the tool path, which cannot be applied to similar types. Parts processing, processing accuracy and efficiency are very low, equipment investment is large, and labor intensity is high

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