武汉理工大学毕业设计（论文）

Structural Optimization and Process Simulation of Motor Commutator Bend Hook Machine

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Abstract

In order to achieve intelligent manufacturing in the current world countries have put forward advanced development strategies on the manufacturing industry in the context of how to achieve the interaction and integration of information virtual and physical entities in the product manufacturing process is the key to achieve intelligent manufacturing, and the digital prototype concept provides a solution to its thinking. In this paper, the motor commutator bending hook machine is used as the research object, mainly around the structure optimization and process simulation of the bending hook machine. Based on the digital prototype technology, a solution is proposed that enables the simulation evaluation of the equipment at the production line design stage, and the digital prototype is built with the hook bender as an object and its function is verified. The main studies in this paper are:

First of all, the structural optimization of the motor commutator bending hook machine was completed. The mechanical structure and process of the existing bending hook machine is studied, and the over-positioning structure problem of the top material mechanism is analyzed.

Secondly, the solution for the digital prototype of the motor commutator bend hook machine was then designed. The requirements analysis of the digital prototype of the hook bender was carried out and the overall scheme design was carried out, including the modularization of the digital prototype and the analysis of the problems of implementing the digital prototype, in which the modularization of the system was based on the CPS concept of dividing the digital prototype into physical modules and information modules.

Finally, the motor commutator bent hook machine digital prototype construction and process simulation was completed. According to the module division of the digital prototype machine, the completion of the digital prototype of the bending hook machine, including the design of the physical module, the design of the information module and the design of the communication between the physical module and the information module, to achieve the information interaction between the physical module and the information module.

Key Words：digital mock-up；PLC drive；Tecnomatix；simulation debugging

Contents

Chapter 1 Introduction 1

1.1 Source of thesis 1

1.2 Research background and significance of thesis 1

1.3 Research status at home and abroad 2

1.3.1 Research status of digital mock-up 2

1.3.2 Research status of PLC drive 4

1.4 Main research contents of thesis 6

Chapter 2 Structural optimization of bend hook machine 8

2.1 Introduction 8

2.2 Overview of motor commutator bend hook machine 8

2.2.1 Concept and structure of motor commutator line 8

2.2.2 Structure of bend hook machine 9

2.2.3 Process of bend hook machine 11

2.3 Analysis of structural issue 12

2.4 Structural optimization scheme 13

2.5 Summary of chapter 14

Chapter 3 Solution of digital mock-up of bend hook machine 15

3.1 Introduction 15

3.2 Demand analysis of digital mock-up 15

3.3 Overall scheme design 16

3.3.1 Modules of digital mock-up of bend hook machine 16

3.3.2 Difficulties of building digital mock-up of bend hook machine 18

3.4 Summary of chapter 19

Chapter 4 Process simulation of bend hook machine 20

4.1 Introduction 20

4.2 Design of physical module 20

4.2.1 Model analysis 20

4.2.2 Logical processing of intelligent component 21

4.2.3 Simulation based on time series 23

4.2.4 Creation of model signal interface 26

4.3 Design of information module 27

4.3.1 Configuration and Programming 28

4.3.2 Program debugging 31

4.3.3 Visualization design of system 32

4.4 Communication between physical module and information module 33

4.5 Summary of chapter 35

Chapter 5 Conclusion and outlook 37

5.1 Conclusion 37

5.2 Outlook 38

References 39

Appendix 41

Acknowledgements 42

Chapter 1 Introduction

1.1 Source of thesis

This dissertation is derived from the following projects.

Sub-topic 4 of the State Key Research and Development Program "Basic Theory and Key Technology Research of Intelligent Production Line Information Physics System for Personalized Customization" - Verification of Intelligent Production Line Information Physics System (2018YFB1700504).

1.2 Research background and significance of thesis

With the deep integration and development of cloud computing, Internet of Things, big data, artificial intelligence, virtual reality and other new generation information technology and traditional manufacturing, countries around the world have proposed national-level manufacturing transformation strategies, such as Germany's Industry 4.0, the United States' Industrial Internet, the United Kingdom's Industry 2050, Made in China 2025 ^[1]. Although the strategic goals proposed differ from country to country, the theme is to achieve smart manufacturing, the key to which is how to achieve the interaction and integration of information avatars and physical entities in the manufacturing process ^[2].

In the design stage of a product, all the design elements of the physical entity are extracted to build a corresponding information virtual object. The information virtual object can reflect the geometric properties, functions and performance of the physical entity, and can evaluate the functions and performance of the product in a simulation, thus the concept of Digital Mock-Up (DMU) emerges. Digital mock-up, also known as virtual prototyping, refers to the digital description of an entire mechanical device or subsystem with independent functions, in which the digital prototype can reflect not only the geometric properties of the product object, but also the functions and performance of the product object in at least one aspect ^[3]. Therefore, simulation evaluation using digital prototyping during the design phase of a product can effectively streamline the product design process, calibrate the design solution and reflect the working state of the physical plant of the product. However, digital prototyping technology, as a cutting-edge technology that has emerged in recent years, is still in the development stage, with few theoretical and research results related to it, and few cases for reference and results for application on the ground.