Part machining method for automatically obtaining dimensional tolerance

Abstract

The invention discloses a part machining method for automatically obtaining dimensional tolerance and belongs to the technical field of machining. According to the method, information in tolerance data is integrated in UG NX7.5 software, an accurate and fast tolerance information marking tool is provided for model information marking people by recognizing and judging model dimensions and retrieving the tolerance data, errors caused by manual operation are reduced, the part machining and production efficiency and quality are improved, and the project quality requirements are met. Besides, the method not only can complete accurate dimensional tolerance value entry, but also can adjust tolerance marking styles automatically according to dimensional tolerance types, and the dimensional tolerance marking styles are prevented from being repeatedly adjusted.

Description

technical field [0001] The invention belongs to the technical field of mechanical processing, and in particular relates to a part processing method for automatically obtaining dimensional tolerances. Background technique [0002] During the manufacturing process of parts, due to the influence of processing or measurement and other factors, there is always a certain error in the actual size after completion; in order to meet the requirements of interchangeability, the actual size of the parts must be controlled within the allowable range of variation, which is It is required that each dimension must have corresponding dimensional tolerance requirements; therefore, dimensional tolerance marking is an indispensable and important link in process preparation. [0003] In the traditional 3D model tolerance information labeling, for unspecified standard dimensional tolerances, it mainly relies on manually searching the tolerance manual, and there is no direct relationship between t...

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Problems solved by technology

[0003] In the traditional 3D model tolerance information labeling, for unspecified standard dimensional tolerances, it mainly relies on manually searching the tolerance manual, and there is no direct relationship between the model and dimensional tolerances; the labeling process must determine the tolerance value according to the size type and size , and then enter the dimensional tolerance value and adjust the tolerance labeling style to complete the dimensional tolerance information labeling. In this process, there are many manual intervention factors, and errors may occur in the search and input links, and this search process is time-consuming. To a certain extent, it affects the quality and efficiency of labeling;

[0004] The marking method based on traditional tolerances affects the quality and efficiency of parts manufacturing due to excessive manual intervention factors. Therefore, there is an urgent need for a part processing method that automatically obtains dimensional tolerances to solve the problems existing in the existing technology

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