Compilation method and system of numerical control program for machining the insertion slot of the last blade of steam turbine rotor

Abstract

The invention provides a numerical control program compilation method and a system for processing the inserting groove of the final blade of the steam turbine rotor. The method includes: providing an interactive interface to obtain category information and parameter information of the insertion slot of the last blade to be processed; judging the type of milling track of the insertion slot of the last blade according to the parameter information; based on the category information, the parameter information, And the milling trajectory category looks up and invokes a matching parametric programming template from a preset database; wherein, when the parametric programming template is invoked, it calculates the tool trajectory for machining the insertion groove of the final leaf according to the parameter information ; Write the tool path into the text file of the NC program to complete the compilation. The invention realizes the automatic introduction of the parameters of the insertion slot of the last leaf, the automatic judgment of the type of the insertion slot, and the automatic export of the numerical control program, which greatly reduces the work burden of technicians and improves the work efficiency and accuracy.

Description

technical field [0001] The invention relates to the field of processing the insertion groove of the last blade of the industrial steam turbine rotor, in particular to a numerical control program compilation method and system for processing the insertion groove of the last blade of the steam turbine rotor. Background technique [0002] For a certain type of steam turbine rotor blade insertion slot, it is actually milled by a boring and milling machine. For a certain type of end leaf insertion slot, its structure is relatively fixed, but there are many types and structural parameters, and the parameters will change with product changes. In the prior art, the numerical control program used for processing still stays at the stage of manual programming according to a large number of parameters of the end blade insertion groove in the product. This process needs to manually change the parameters according to the type of insertion groove (single and double T, left and right rotati...

AI Technical Summary

Problems solved by technology

[0003] The T-slots on the rotor sometimes have as many as 30 levels, and the insertion slots of the end blades may also have as many as 20 types of parameters. Manually inputting parameters and calculating trajectory points is prone to problems such as input errors and calculation errors. In addition, modifying the parameters of each type of end leaf insertion slot after judging the type of the end leaf insertion slot (each has four or five main parameters to be modified) is time-consuming and laborious, and it is easy to cause product NCR (non-conforming product item)

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