Digital information unification method for geometric product design produce and detection based on GPS

Abstract

The invention discloses a GPS-based method for unifying the digital information for designing, manufacture and detecting geometrical products. The method comprises the following steps: applying the GPS standards to convert the prior product design into a GPS standard model; producing a physical product according to the technical process and the corresponding digital control processing of the GPS standard generating product; using the product GPS standard model to choose a digital measuring device and generate a measurement procedure to detect the physical product and obtain a detection model; applying the GPS authentication operation to obtain an authentication model according to the GPS standard model information; determining whether the product is qualified or not by comparing the authentication model with the standard model; and modifying the design model if the product is not qualified. The method can accurately represent the requirement for controlling geometrical characteristic errors, and give out measurement and evaluation methods by applying the new generation GPS standard in the digital manufacturing, therefore, the invention can better solve the problems that the functional requirement is out of control and the metering evaluation is out of control in the traditional digital manufacture.

Description

technical field [0001] The invention relates to a method for unifying the information of geometric product design, manufacturing and testing process, in particular to a method for unifying the digital information of geometric product design, manufacturing and testing based on GPS. Background technique [0002] With the rapid development of manufacturing, computer technology and CAX series software such as CAD / CAM / CAPP / CAT, the modern product manufacturing process has developed into a digital manufacturing process of parallel environment integration technology, from the past single model, single function, single field to Standardization, integration, intelligence, and digitalization are developing, so higher requirements are put forward for the processing of digital information in the process of product design, manufacturing, and testing. [0003] Judging from the current situation of product digital manufacturing process information flow: [0004] 1. There are differences i...

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Problems solved by technology

[0004] 1. There are differences in the definition, implementation means, and access methods of the models. There are obstacles in information exchange, resources cannot be effectively shared, and the degree of integration is low.

Inconsistency among standards, insufficient standard semantic information, etc. directly lead to a single product design model and incomplete information, resulting in the lack of non-geometric information required in the later stage of product development, resulting in ineffective information transfer between subsystems and exchange, which greatly hinders the development of digital product design, manufacturing and testing subsystems to a high degree of integration

[0005] 2. Due to the large number of standards based on geometric product design, processing, and testing, and the lack of connections and references between standards, the manpower and material resources required for resource maintenance and utilization are increased.

Under the requirements of modern management, the planning, organization and control of various tasks have become too cumbersome, and the cost of product development has greatly increased

[0006] 3. In the entire product life cycle, the isolation and separation of each link in product development makes it difficult to plan the entire product development process in a unified manner

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