Method for establishing geometric quantity detection method tool library

Abstract

The invention discloses a method for establishing a geometric quantity detection method tool library, which is mainly applied to geometric quantity parameter detection in an aero-engine part process procedure, and aims to solve the problems of unscientific method selection, inconvenience in standard query and calling and the like in the current aero-engine geometric dimension detection. The method aims at completing technical standard structuring and information integration, and proper detection methods and equipment are screened according to detected parameter characteristics by setting geometric quantity detection method tool matching rules; carrying out structural decomposition on detection method and measurement equipment information and collecting data; establishing a tool library and developing a calling function, and automatically pushing detection information to a process compiling stage; according to the method, standardization and normalization of the detection technology are achieved, an accurate and efficient detection method selection basis is provided for technicians, the part detection quality is improved, and it is ensured that geometric dimension detection of products is accurate, reliable, standard and unified.

Description

Technical Field

[0001] The invention relates to the technical field of geometric quantity detection, in particular to the compilation of a geometric quantity parameter detection method used in the scientific research and production of aircraft engine models. Background Art

[0002] At present, due to the lack of accurate and efficient ways to select testing methods and tools in the process of geometric dimension testing of aero-engine products, in the current process, only testing equipment is specified for parts testing items, and necessary information such as testing constraints and evaluation methods is lacking. There are problems with imperfect testing methods in process regulations, which can easily lead to inconsistent test results from different personnel and affect product testing quality. The specific manifestations are as follows:

[0003] (1) Process personnel select the inspection method based on their own experience, but cannot guarantee the reasonable applicability of the selected inspection method. They often choose traditional measuring tools, and rarely use automated and digital equipment. At the same time, since different operators use different inspection equipment, inspection locations and points, it is easy to cause inconsistent acceptance results.

[0004] (2) Although the existing aero-engine geometric parameter detection technology system covers various shape and position tolerances, geometric parameter measurement positions of different size specifications, and standard constraints on the number of measurement points, the standard content cannot be automatically and informationally queried and called, and cannot be matched and pushed. Summary of the invention

[0005] In order to solve the above problems, the present invention discloses a method for establishing a geometric quantity detection method tool library.

[0006] The specific technical solution is as follows: A method for establishing a geometric quantity detection method tool library includes the following steps:

[0007] Step 1: Create a measurement equipment tool library

[0008] Comprehensively sort out commonly used geometric measurement equipment and measuring tools, organize them by measurement equipment category and measuring tool type, clarify specifications, maximum allowable errors and other information, and establish a geometric measurement equipment tool resource library;

[0009] Step 2: For the various detection methods of various geometric parameters in the geometric quantity detection method tool library, each detection method corresponds to different detection equipment, and the geometric quantity parameter detection method is structured according to the characteristics of the measured parameters;

[0010] Step 3: Define the attributes of the required field information, and perform structured decomposition on the geometric parameter detection method. Its structured attributes include the measured parameter, measurement method, measurement equipment name, measurement diameter / length, number of measurement positions, measurement height / width, number of measurement sections, and value-taking method. At the same time, perform structured decomposition on the commonly used measurement equipment information. Its structured attributes include measurement equipment classification, measurement equipment name, measurement range, graduation value, and maximum allowable error. Through this structured decomposition, data collection is completed; a general detection method tool library is established;

[0011] Step 4: According to the structured data of the geometric quantity parameter detection method, a geometric quantity detection method tool library is established and a calling function is developed. When compiling the process specification inspection items, the detection method is first matched according to the type of the measured parameter, and then the measurement equipment information is pushed according to the selected detection method. Then, the measurement range and accuracy are matched according to the size and tolerance of the theoretical size to determine the selected measurement equipment. Finally, according to the selected measurement equipment and the size of the measured feature, the number of measurement points and the number of measurement sections are pushed, so as to realize the push of the general detection method tool library in the geometric quantity detection method tool library;

[0012] The geometric quantity detection method database is divided into a measurement tool resource library, a general detection method tool library, and a special detection method tool library.

[0013] In step three: When it comes to the special detection method tool library, you need to manually enter the number of measurement sections, number of measurement positions, and value acquisition method.

[0014] The advantages of the present invention are: it realizes the structuring of information such as parameter category, detection method, constraint condition, value-taking method, etc. of dimension and form tolerance detection technical standards such as diameter detection specification, gap detection specification, flatness detection specification, etc.; it comprehensively sorts out geometric measurement detection equipment and measuring tools, organizes them according to equipment category and measurement range, and clarifies the accuracy indicators of various types of measuring equipment and measuring tools; it establishes a geometric measurement detection method tool library, and realizes the storage management of data items such as detection method, constraint condition, and measuring equipment information; it develops a geometric measurement detection method tool library push function, and realizes the automatic push of measuring tool information, constraint condition, evaluation method, etc., and each production unit selects typical parts to carry out application verification. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a diagram of the tool library architecture of the geometric quantity detection method in the present invention. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] A method for establishing a geometric quantity detection method tool library comprises the following steps:

[0018] Step 1: Create a measurement equipment tool library

[0019] Comprehensively sort out commonly used geometric measurement equipment and measuring tools, organize them by measurement equipment category and measuring tool type, clarify specifications, maximum allowable errors and other information, and establish a geometric measurement equipment tool resource library;

[0020] Step 2: For the various detection methods of various geometric parameters in the geometric quantity detection method tool library, each detection method corresponds to different detection equipment, and the geometric quantity parameter detection method is structured according to the characteristics of the measured parameters;

[0021] Step 3: Define the attributes of the required field information, and perform structured decomposition on the geometric parameter detection method. Its structured attributes include the measured parameter, measurement method, measurement equipment name, measurement diameter / length, number of measurement positions, measurement height / width, number of measurement sections, and value-taking method. At the same time, perform structured decomposition on the commonly used measurement equipment information. Its structured attributes include measurement equipment classification, measurement equipment name, measurement range, graduation value, and maximum allowable error. Through this structured decomposition, data collection is completed; a general detection method tool library is established;

[0022] Step 4: Establish a geometric quantity detection method tool library based on the structured data of the geometric quantity parameter detection method and develop a calling function. When compiling the process specification inspection items, first match the detection method according to the type of the measured parameter, then push the measurement equipment information according to the selected detection method, then determine the selected measurement equipment by matching the measurement range and accuracy according to the size of the theoretical size and the tolerance, and finally push the number of measurement points and the number of measurement sections according to the selected measurement equipment and the size of the measured feature, so as to realize the push of the general detection method tool library in the geometric quantity detection method tool library; during use, develop the function of calling the detection method tool library, match the measurement equipment and gauge type that can measure the parameter in the measurement equipment tool resource library according to the type of the measured parameter, and automatically return the gauge name, specification, graduation value, and maximum allowable error information after selection. According to the selected "measurement tool type" and "measured parameter type", select the corresponding inspection strategy in the general detection method tool library, and automatically fill in the "number of measurement sections", "number of measurement positions", "other requirements", and "evaluation method" after confirmation, so as to realize the automatic push of gauge information, constraints, evaluation methods, etc. When the process has special requirements, the number of measurement sections, number of measurement positions, value-taking method and other requirements can be manually entered.

[0023] The geometric quantity detection method database is divided into a measurement tool resource library, a general detection method tool library, and a special detection method tool library.

[0024] In step three: When it comes to the special detection method tool library, you need to manually enter the number of measurement sections, number of measurement positions, and value acquisition method.

Claims

1. A method for establishing a geometric quantity detection method tool library, characterized in that: The steps include: Step 1: Create a measurement equipment tool library Comprehensively sort out commonly used geometric measurement equipment and measuring tools, organize them by measurement equipment category and measuring tool type, clarify specifications, maximum allowable errors and other information, and establish a geometric measurement equipment tool resource library; Step 2: For the various detection methods of various geometric parameters in the geometric quantity detection method tool library, each detection method corresponds to different detection equipment, and the geometric quantity parameter detection method is structured according to the characteristics of the measured parameters; Step 3: Define the attributes of the required field information, and perform structured decomposition on the geometric parameter detection method. Its structured attributes include the measured parameter, measurement method, measurement equipment name, measurement diameter / length, number of measurement positions, measurement height / width, number of measurement sections, and value-taking method. At the same time, perform structured decomposition on the commonly used measurement equipment information. Its structured attributes include measurement equipment classification, measurement equipment name, measurement range, graduation value, and maximum allowable error. Through this structured decomposition, data collection is completed; a general detection method tool library is established; Step 4: Establish a geometric quantity detection method tool library based on the structured data of the geometric quantity parameter detection method and develop a calling function. When compiling the process procedure inspection items, first match the detection method according to the type of measured parameter, then push the measurement equipment information according to the selected detection method, and then determine the selected measurement equipment by matching the measurement range and accuracy according to the size and tolerance of the theoretical size. Finally, push the number of measurement points and measurement sections based on the selected measurement equipment and the size of the measured feature to realize the push of the general detection method tool library in the geometric quantity detection method tool library.

2. The method for establishing a geometric quantity detection method database according to claim 1, characterized in that: The geometric quantity detection method database is divided into a measurement tool resource library, a general detection method tool library, and a special detection method tool library.

3. The method for establishing a geometric quantity detection method database according to claim 2 is characterized in that In step three: When it comes to the special detection method tool library, you need to manually enter the number of measurement sections, number of measurement positions, and value acquisition method.

Images