introduction
With the rapid development of modern society, each company wants its own product to have its own LOGO mark, enhance its own brand effect, laser marking is the first choice, especially in some metal and aluminum profiles. In order to save labor costs, automated marking equipment came into being. Through the servo motor, the aluminum profile to be marked is sent to the marking area to achieve accurate marking (accuracy error is less than 0.1mm), which reduces physical labor and precision error caused by artificial feeding, and brings rapid development and large-scale production for the enterprise. Convenient.
Project Description
1. Industry and background of the project
As labor costs have risen in recent years and labor shortages have occurred in various places, it is difficult for companies to recruit workers. The original manual operation can no longer meet the enterprise's quantitative production model, and the high requirements of end users also place high demands on the requirements of the enterprise's processed products. The emergence of automated machinery and equipment will solve the bottleneck problem facing the development of the enterprise. Enterprises can also check the production status and qualified product rate according to the upper computer screen. It brings advantages for the rapid development of the company and enables the company to stand out in the competitive competition and remain invincible.
2. Process introduction
3. List of parts used by the project
Control system composition and network architecture
Product selection demonstration
The new S7-200 SMART brings two different types of CPU modules, standard and economical, to meet the needs of different industries, customers and equipment. The standard type can be used as a scalable CPU module to meet the requirements for I/O scale and logical control. However, the economical CPU module can meet relatively simple control requirements directly through the single-machine ontology. Ethernet communication, all CPU modules are equipped with Ethernet interface, support Siemens S7 protocol, TCP/IP protocol, effectively support a variety of terminal connections, and can be used as a program download port (use ordinary network cable).
As a servo-driven company, Yaskawa first proposed the concept of “mechatronics†and has now become a global term. This concept was first introduced in the world by Yaskawa Electric in the late 1960s. The idea of ​​integrating the customer's machinery with the company's motor production products to provide greater functionality. The electromechanical integration technology that applies electronic technology to mechanical control and achieves high performance has played an enormous role in various types of industrial automation and efficiency today.
Electrical parts
4. The main difficulties
PLC through the bearing installed on the rotary encoder to determine the material delivery distance and speed, after the arrival of the position through the interrupt, to the laser board to send marking instructions, so as to control the laser distance marking. Another rotary encoder is directly connected to the laser control card. The collected signal is compared with the signal from the PLC, and the accuracy exceeds the error, indicating that it is a defective product. At this time, alert the operator.
5. Live picture appreciation
to sum up
After system debugging, the main PLC communication is normal, and data exchange with the host computer is normal. At present, the machine has been put into operation in the customer's production workshop. The overall operation is stable, which not only reduces labor costs, but also improves work efficiency. Through the data exchange between the OPC and the host computer, real-time data acquisition is realized, thereby improving the control accuracy.
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