Research on the optimal design technology of a digital assembly sequence based on an internet of things data collection framework

Abstract

The assembly of a machine tool modular fixture with a complex structure, flexible layout and poor regularity characteristics is used as an example in this paper to establish an IOMT system for optimizing the assembly sequence of a machine tool modular fixture based on IOT technology driven by modern intelligent identification and acquisition technology, with the aim of addressing the shortcomings of existing assembly technology in the traditional serial design method. From the perspective of an inverse sequence of an assembly sequence, and combined with the disassembly sequence data extracted by the perceptual assembly layer control unit under the environment of the IOT, the disassembly sequence data can be mathematically expressed by using three mainstream heuristic algorithms (i.e. the artificial fish swarm algorithm, the genetic algorithm, and the ant colony algorithm), while considering the disassembly quality, disassembly cycle and cost. Then, the three algorithm models are used to analyse the example of a machine tool modular fixture, and the calculation efficiency and solution accuracy are comprehensively evaluated; Simulation results show that the ant colony algorithm has the highest computational efficiency and the highest accuracy in a complex data environment. Therefore, the construction of an IOMT system for optimizing the assembly sequence of a machine tool modular fixture can be realized by using the ant colony algorithm.

Research and Development of Digital Assembly Process System for Ultrasonic Transducers

“…With the vigorous development of the country's current economy and the current background, in order to achieve efficient use of digital assembly process design, it is necessary to improve the current digital assembly process technology on the basis of domestic and foreign experience and to strengthen the management of the assembly site. e original assembly process specification is divided into two parts, one is a general process specification, and the other is a detailed assembly process operation guide [4]. e general process specification specifically includes process routes and catalogs and is generally used in the specified production planning and application of parts and resources of various scheduling departments.…”

Holistic simulation-based optimisation methodology for facility layout design with consideration to production and logistics constraints

“…14 Additionally, owing to some characteristics of real-world problems, such as the random nature of data or stochastic data, FLD problems cannot be easily modelled without the use of simulation. 15 Using simulation approaches makes it easier to address the system capacity constraints and resource requirements. 15…”

“…15 Using simulation approaches makes it easier to address the system capacity constraints and resource requirements. 15…”

Optimized Design of Mechanical Chain Drive Based on a Wireless Sensor Network Data Algorithm

“…To study the dynamics of the chain drive system, it is necessary to study the complex contact problem between different rigid body surfaces while considering its multibody dynamic characteristics. The contact between different rigid bodies of the chain drive system is a complex nonlinear problem, and the contact collision can be regarded as a time-varying dynamic process, and the most used algorithms to deal with the boundaries of the contact problem are the implicit Lagrange algorithm and the display penalty function method [18]. In this section, the research and analysis of the contact problem between different rigid bodies of the chain drive system mainly involve contact collision detection and contact force solution.…”