Development and Innovation of Design and Manufacture Model of Weighing Sensor

[Abstract] The core of "Industry 4.0" is the digitalization and intellectualization of manufacturing industry; the essence of "Made in China 2025" is the deep integration of industrialization and informatization, taking "innovation drive, structure optimization, quality first, green development" as the guiding principle of manufacturing development. In this paper, how to integrate information technology and manufacturing technology to realize digital, networked and intelligent design and manufacture for weighing sensor enterprises is discussed, including structural design mode innovation, manufacturing process mode innovation, key manufacturing processes to promote automation and intelligent transformation, and the establishment of digital weighing sensor. This paper introduces the basic way of three-dimensional digital design and manufacture, which can be used as a reference for weighing sensor enterprises to promote digital and intelligent manufacturing.  

[keywords] weighing sensor; design and manufacture mode; digitalization; networking; intellectualization; three-dimensional digital design and manufacture

I. Overview

When the new industrial revolution of "Industrial 4.0" comes, China has lost no time in putting forward the strategy of "Made in China 2025", which will inject a strong driving force into the development of China's manufacturing industry and bring unlimited business opportunities to the sensor industry. The core driving force of "Made in China 2025" is to grasp intelligent manufacturing, which is the fundamental path to solve the problem of China's manufacturing industry from a big country to a powerful country. Made-in-China 2025 is an upgraded version of Made-in-China, which embodies four major changes, one main line and eight countermeasures.  

Four transformations: from factor-driven to innovation-driven; from low-cost competitive advantage to quality-benefit competitive advantage; from extensive manufacturing with high resource consumption and pollutant emission to green manufacturing; from production-oriented manufacturing to service-oriented manufacturing.  

One main line: digital, networked and intelligent manufacturing, which embodies the deep integration of information technology and manufacturing technology, is the main line.  

Eight countermeasures: promoting digital, networked and intelligent manufacturing; improving product design capability; perfecting technological innovation system of manufacturing industry; strengthening manufacturing foundation; improving product quality; promoting green manufacturing; cultivating enterprise groups with global competitiveness and advantageous industries; and developing modern manufacturing service industry.  

How to implement the development strategy of "Made in China 2025" in the weighing sensor industry and how to integrate information technology and manufacturing technology to realize digitalization, networking and intelligent design and manufacturing are the issues that the larger enterprises in the industry must face. In recent years, three-dimensional digital design and manufacturing capability has become the core of competition between domestic and foreign enterprises, and is the pivot and breakthrough to realize the transformation of enterprise development capability. This change with the nature of wind vane should be highly valued by weighing sensor enterprises. Although the principle and manufacturing technology of strain-gauge weighing sensor determine that it can not be produced in large quantities as automatic and intellectualized seamless connection production line as machine parts, the structure design and manufacturing technology of weighing sensor should be upgraded by Internet thinking so as to make it as close as possible to digitalization, intellectualization or partial digitalization. Intelligent production. Internet is the commonness and foundation. The management of weighing sensor enterprises must examine and reengineer enterprises by means of information technology and Internet thinking. Analysis of the main elements of enterprises, one is human, one is business, the transformation of enterprises is nothing more than the transformation of people and things. The digitalization and intellectualization transformation of the structure design and manufacturing process of weighing sensor starts from people and personnel, that is, from people's design concept and manufacturing process, to realize the innovation of structural design and manufacturing process mode.  

2. Innovation of structural design mode of weighing sensor

At present, strain gauge weighing sensor enterprises in our country mostly adopt two kinds of design methods. One is traditional design method, which is classical calculation method plus experience. It is semi-theoretical and semi-empirical design, which can not achieve the best design. It is difficult to analyze the boundary effect of elastic elements, support stiffness and stress concentration, etc. For some small and medium-sized enterprises. It is adopted by enterprises. The second is the modern design method, which is the extension of the traditional design theory and the synthesis of various design techniques, theories and methods, that is, the establishment of mathematical models and the use of finite element method for calculation and analysis. Its characteristics are: the design method is accurate and computerized, but it still needs physical assembly, physical testing and testing, which is widely used by large enterprises.  

For a long time, weighing sensor enterprises at home and abroad have been exploring a scientific, reasonable, economical and efficient method of product design and manufacturing to support the data definition and transmission of product design, manufacturing, testing, application and other stages of the whole life cycle. The emergence of Modcl Based Dtfinition (MBD) technology provides an effective way to solve this problem. Model definition technology attaches all relevant design definitions, process descriptions, attributes and management information to the digital definition method of product three-dimensional model, which provides a theoretical basis for three-dimensional digital design and manufacturing.  

The weighing sensor manufacturer, which is in the leading position in the international market, began to innovate the structural design mode several years ago, and realized the three-dimensional digital design and manufacture based on the model definition technology. Its characteristics are: changing the original design method of weighing sensor, starting from the transformation of design tools, to establish a rapid design platform of three-dimensional digital samples with independent intellectual property rights. Including: rapid design and calculation of the overall structure of elastic components; analysis of the influence of boundary conditions on the introduction of load and load bearing; introduction of load head, load bearing cushion and installation