With the rapid development of information technology, emerging technologies such as cloud computing, big data, and Internet of Things are constantly infiltrating into traditional manufacturing industries, pushing them to develop in the direction of intelligence, networking, and flexibility. In this context, "cloud manufacturing", as an important development direction of intelligent manufacturing and industrial Internet, has gradually become the key path for the transformation and upgrading of manufacturing industry. So, how is cloud manufacturing realized?

First of all, cloud manufacturing is an advanced manufacturing model based on the concept of cloud computing. By virtualizing and serving manufacturing resources and manufacturing capabilities, and carrying out centralized management and on-demand distribution through the network, the efficient utilization and flexible configuration of manufacturing resources can be realized. Its realization mainly depends on the following core technologies and links:

1. Virtualization and service of manufacturing resources
The first step of cloud manufacturing is to digitize and virtualize the manufacturing resources such as equipment, technology, manpower and software in the factory, and package them into callable service modules. For example, a CNC machine tool can be abstracted as a "machining service", which can be called externally through an interface. This service transformation makes manufacturing resources no longer limited by physical location and can be flexibly scheduled on a global scale.

2. Building a cloud computing platform
Building an efficient cloud manufacturing platform is the core of cloud manufacturing. The platform needs strong data processing ability and resource scheduling ability, and can intelligently match and optimize the distribution of manufacturing requirements from different enterprises. The platform usually includes several modules, such as user interface, resource management, task scheduling, security and so on, to ensure the collaborative and efficient manufacturing process.

3. Integrated application of Internet of Things technology
Internet of Things technology plays an important role in connecting reality and virtual world in cloud manufacturing. Through sensors, RFID, industrial Internet and other technologies, manufacturing equipment can collect operation data in real time and upload it to the cloud, and at the same time receive instructions from the cloud for remote control. This not only improves the utilization rate of equipment, but also realizes real-time monitoring and dynamic adjustment of manufacturing process.

4. Support of big data and artificial intelligence
In the cloud manufacturing environment, massive manufacturing data provide decision support for the optimization of manufacturing process through collection, analysis and modeling. For example, through the analysis of historical orders, production efficiency, equipment status and other data, the system can predict the capacity bottleneck, optimize the production schedule and improve the overall efficiency. The application of artificial intelligence technology further enhances the autonomous learning and decision-making ability of the system.

To sum up, cloud manufacturing is not a simple superposition of technologies, but a product of deep integration of many advanced technologies. By breaking the information island of traditional manufacturing, it realizes the sharing and cooperation of resources, which provides a powerful impetus for the digital transformation of manufacturing industry. In the future, with the development of new technologies such as 5G, edge computing and blockchain, cloud manufacturing will continue to evolve towards higher efficiency, higher quality and safer.