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1. Digital workshop hardware platform construction

1.1 Intelligent production

Intelligent in the introduction of CNC machine tools, robots and other production equipment and achieve production automation on the basis of ERP, MES and other management software as the central management system, visual cameras, RFID tags, scanners, bar codes, sensors and other components, NC system or PLC as the control unit, The transmission network is based on PROFIBUS, PROFINET, MODUBUS and other communication technologies. It can obtain state information and transmit control instructions with the help of perfect system, so as to realize scientific decision-making, intelligent design, reasonable production scheduling, monitoring equipment status, improving equipment utilization rate, guiding production operation, and making automatic production intelligent equipment run efficiently.

1.1.1 Intelligent Hardware

Intelligent production and manufacturing unit is a group of processing equipment and auxiliary equipment with similar capabilities of modularization, integration, integration of aggregation, so that it has the production and output capacity of multiple varieties and less batch products. Building intelligent manufacturing unit is an effective entry point to open the intelligent road. Intelligent manufacturing unit is configured for each workshop. “Intelligent manufacturing unit” is a small modular digital factory practice. The whole unit is composed of automation module, information module and intelligent module. In the field of processing, focus on the transition from single-function equipment to multi-function equipment; In the field of assembly, it breaks the shackles of manual operation and gradually transforms from manual operation to man-machine collaboration and automatic operation. Continue to explore sophisticated equipment, committed to quality testing, SPC station construction; The traditional, simple manual handling, using robots with visual positioning technology to achieve all automatic handling.

1.1.2 Smart Device Interconnection

Based on information technology, the intelligent production workshop connects different equipment in the generating workshop with the communication network to collect the status data and quality data of the equipment, which is used as the basis for data collection and analysis. For different generating equipment, different data acquisition methods are adopted: for the equipment with data interface, such as machining center, grinding machine, PLC controller, robot, instrument, etc., the equipment data is transmitted to the gateway through Profibus or Profinet network; For devices without data interface, device status collection can be completed through external sensors to improve communication capability, which can be carried out in wired or wireless ways. After data transmission to the network, local data analysis and storage can be completed through edge computing. For data analysis results summary, wired or wireless way can be adopted. It is stored in the cloud server for data display and subsequent data analysis. Three important tasks need to be completed for network access of equipment: hardware interface connection, software data interface interworking, interface specification definition.

1.1.3 Smart Device Data Collection

Complete manufacturing equipment should have complete archival information, including product number, product description, product status, product timestamp and other information. Implement device and data interworking with other devices, devices and execution layers according to defined communication interfaces. The collected data are analyzed, qualified data are selected, and unqualified data are processed automatically and manually to ensure the stability of output and quality status and meet the quality traceability of products.

1.1.4 Intelligent manufacturing execution system

The establishment of MES manufacturing execution system, using production scheduling management, process execution and management, process control management, scheduling management, quality management, equipment management and other modules, can manage and display the whole process of production and manufacturing. Through the development of digital production and manufacturing execution platform, the data flow among planning, production, logistics and equipment can be connected to form a complete system of planning, control, feedback and adjustment, and the seamless connection between the transmission of plans and commands and actual production can be realized through standardized defined interfaces. Make the production plan, control command, information data in the whole MES system, process control system, automation system transparent, timely, smooth interactive transmission, and finally realize the whole process of production digitization, create a digital production workshop.

1.2 Intelligent logistics and storage

Logistics warehousing is a very important part of the manufacturing industry, through the application of intelligent logistics warehousing system can quickly complete the product raw materials, product accessories, finished products between the rapid flow and transportation work, through the use of stacker conveying mode and three-dimensional warehouse storage mode to improve the warehouse space turnover efficiency, reduce the warehouse transport process caused by labor costs, improve the efficiency of transport. Realize the digital control and intelligent transportation of warehouse storage flow.

The intelligent logistics warehousing system should be built and the system structure should be improved: equipment layer, operation layer and enterprise layer. On the equipment floor, three-dimensional warehouse, intelligent forklift truck, palletizing robot, elevator and other storage equipment are built. Logistics equipment such as AGV, intelligent pallet, logistics robot, RFID, machine vision, intelligent camera and other identification equipment are built. WMS, WCS, TMS and other operation and maintenance software are added to the operation layer. The enterprise layer is connected with the procurement, planning, inventory, delivery and other modules of management software such as ERP, CRM and SCM, which are integrated into the closed loop of the total system.