Accurate positioning processing method of IC engine airframe intermediary hole

Abstract

The invention relates to a precise positioning and machining method for an intermediate mesopore of an internal combustion engine body. The invention comprises the following step: first, a spindle hole, a main mesopore and a camshaft bore are machined on a lath; second, for the machined spindle hole, the main mesopore and the camshaft bore, the coordinate value (X1, Y1) on the body from the main mesopore to the zero point, and the coordinate value(X2,Y2) of the camshaft bore on the body to the aero point are separately measured taking the coordinate of the spindle hole as the aero point; third, the coordinate value of the intermediate mesopore on the body is set as (X, Y), and the measured main mesopore coordinate value (X1,Y1) and the camshaft bore coordinate value (X1,Y2) are provided into the precision positioning equation of the intermediate mesopore; fourth, the precision positioning coordinate value (X, Y) of the intermediate mesopore obtained from the third step is of the actual coordinate of the intermediate mesopore and the intermediate mesopore is machined; fifth, the hole distances between the main mesopore and the intermediate mesopore and between the camshaft bore and the intermediate mesopore are measured by a micrometer. The calculated coordinate value is verified and the machining for the intermediate mesopore is completed.

Description

technical field [0001] The invention relates to a processing and positioning method, in particular to a processing method for precise positioning of mesopores in an internal combustion engine body. Background technique [0002] In actual mechanical processing, there are often many problems that affect the processing quality, such as in the intermediate hole 1 of the C11C (diesel locomotive body model) body (such as figure 1 As shown), when the intermediate hole 1 is processed by a boring machine, it is affected by the main intermediate hole 2 and the camshaft hole 3, and the position of the intermediate hole 1 must meet the requirements of the center distance from the main intermediate hole 2 and the camshaft hole 3 at the same time. This situation leads to uncertainty in the location of mesopore 1. In the existing machining process, the operator generally has to rough bore a hole at an ideal position first, then measure the hole distance, and then adjust the position of th...

AI Technical Summary

Problems solved by technology

[0002] In actual mechanical processing, there are often many problems that affect the processing quality, such as in the intermediate hole 1 of the C11C (diesel locomotive body model) body (such as figure 1 As shown), when the intermediate hole 1 is processed by a boring machine, it is affected by the main intermediate hole 2 and the camshaft hole 3, and the position of the intermediate hole 1 must meet the requirements of the center distance from the main intermediate hole 2 and the camshaft hole 3 at the same time. This situation leads to uncertainty in the location of mesopore 1

In the existing machining process, the operator generally has to rough bore a hole at an ideal position first, then measure the hole distance, and then adjust the position of the hole according to the deviation, and finally meet the process requirements, which makes the machining efficiency of the intermediate hole 1 very high. Low, affecting the efficiency of the entire machine body processing

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