Precise basis type production processing flow for engine connecting rod

Abstract

The invention discloses a precise reference type production processing flow for an engine connecting rod. The production processing flow comprises the following steps of firstly, carrying out the first phase of processing before cutting of a connecting rod body and a cover, respectively carrying out blank inspection, magnetic particle inspection and rough drilling of a small-end hole, and preparing for the processing of upper and lower end surfaces, the small-end hole, two planes at bolt hole ends, an outer surface of a large-end hole, and the like in the precise basis way; then, carrying out processing after cutting of the connecting rod body and the cover, roughening the large-end hole, except for precise referencebasis, and preparing for the roughening of the bolt hole and the combining surface, and the processing of a bearing counterbored groove; and carrying out processing after cutting of the connecting rod body and the cover, and sequentially carrying out the finishing of the large-end hole after the assembly of the connecting rod, the finishing of the upper and lower end surfaces, and the finishing of the large-end hole and the small-end hole. The production processing flow has the beneficial effects that the speed of the linear movement can be smoothly adjusted, the running precision of the machine is favorably improved, the service life of the machine is prolonged, the arrangement is conveniently and flexibly realized according to requirements, the operation controllability is improved, and the labor strength is reduced.

Description

technical field [0001] The invention relates to a processing method, in particular to a processing flow in a precise reference mode for an engine connecting rod. Background technique [0002] Hydraulic technology is one of the key technologies to realize modern transmission and control. Due to light weight and small size, various components of hydraulic transmission can be conveniently and flexibly arranged according to needs. Combining with the latest technology, it has a high degree of automation and is easy to operate and control. It is easy to realize linear motion and a wide range of stepless speed regulation. To achieve overload protection, mineral oil is used as the working medium, which can be self-lubricated relative to the moving surface and has a long service life. In recent years, hydraulic pneumatic technology is facing competition with mechanical transmission and electric transmission. For example, CNC machine tools and small and medium-sized plastic machines ...

AI Technical Summary

Problems solved by technology

In recent years, hydraulic pneumatic technology is facing competition with mechanical transmission and electric transmission. For example, CNC machine tools and small and medium-sized plastic machines have replaced or partially replaced hydraulic transmission with electronically controlled servo systems; the main reason is that hydraulic technology has leakage and poor maintainability. Disadvantages; for this reason, efforts must be made to give full play to the advantages of hydraulic pneumatic technology, pay attention to the combination with electronic technology, and continuously expand the application field, while reducing energy consumption, improving efficiency, adapting to environmental protection needs, and improving reliability. These are the continued efforts of hydraulic pneumatic technology The goal is also the key to the success of hydraulic and pneumatic products in market competition

However, the existing hydraulic system components of this product have many problems from different perspectives such as operation methods, working methods, and complicated structures, which lead to inefficient work, heavy equipment weight, and high costs