What are the system advantages of flexible manufacturing system and the main characteristics of flex

The flexible manufacturing system is a technically complex and highly automated system, which organically combines microelectronics, computer and system engineering technologies, and ideally and satisfactorily solves the contradiction between high automation and high flexibility in mechanical manufacturing.

The process is determined according to the group of processing objects, and the appropriate CNC processing equipment and the storage and transportation system of workpieces, tools and other materials are selected, and controlled by the computer. Therefore, it can automatically adjust and realize the batch and efficient production of a variety of workpieces within a certain range, and can change the product in time to meet the market demand.

The system advantages of the flexible manufacturing system are:

It has the advantages of rigid automatic production line. When the production batch is not large, the production cost is much lower than that of the rigid automatic production line;When changing products, the adjustment time of the system is much less than that of a rigid automatic production line;However, the total cost of production line construction is much higher than that of rigid automatic production lines.

In order to save investment and improve the efficiency of system operation, the flexible manufacturing line can adopt the form of rigid and flexible combination, some equipment adopts special machine tools (mainly combined machine tools), and some equipment adopts flexible processing machine tools with replaceable headstock or tool holder.

Flexible manufacturing system.

The organic combination of computer and system engineering and other technologies ideally and satisfactorily solves the contradiction between high automation and high flexibility in machinery manufacturing.

Flexibility can be expressed in two ways:

1. It is the ability of the system to adapt to changes in the external environment, which can be measured by the degree to which the system meets the requirements of new products.

2. It is the ability of the system to adapt to internal changes, which can be used in the case of interference (such as machine failure), the productivity of the system and the expected productivity in the case of no interference.

ratio.

The flexible manufacturing system is a technically complex and highly automated system, which organically combines microelectronics, computer and systems engineering technologies, and ideally and satisfactorily solves the contradiction between high automation and high flexibility in mechanical manufacturing. The specific advantages are as follows.

1. High equipment utilization. When a group of machine tools is programmed into a flexible manufacturing system, the output is several times higher than that of this group of machine tools when it is operated separately.

2. The work-in-progress is reduced by about 80%.

3. The production capacity is relatively stable. An automated machining system consists of one or more machine tools, with the ability to degrade operation in the event of a breakdown, and a material handling system that bypasses the faulty machine on its own.

4. High product quality. In the process of processing, the loading and unloading of the parts are completed at one time, with high processing accuracy and stable processing form.

5. Flexible operation. Some flexible manufacturing systems can be inspected, installed and maintained in the first shift.

Second, the third shift can be unattended normal production. In an ideal flexible manufacturing system, the monitoring system can also deal with unforeseen problems such as tool wear and tear, blockage and unblocking of logistics, etc.

6. The product has great adaptability. The tools, fixtures and material handling devices are adjustable, and the system layout is reasonable, which is convenient for adding or decreasing equipment to meet market needs.

7. The economic effect is remarkable. The main technical and economic effects of using FMS are: according to the needs of assembly operations, the processing of the required parts can be arranged in time to achieve timely production, so as to reduce the inventory of blanks and work-in-progress, and the corresponding working capital occupation, and shorten the production cycle; Improve the utilization rate of equipment, reduce the number of equipment and plant area; Reduce direct labor, and realize continuous "unmanned production" 24 hours a day and night under the condition of less supervision; Improve product quality consistency.

Explanation: The flexible manufacturing system is composed of a unified information control system, a material storage and transportation system and a set of digitally controlled processing equipment, which can adapt to the transformation of the processing object (flexible manufacturing system), abbreviated as FMS in English.

Process basis: The process basis of FMS is group technology, which determines the process according to the group of processing objects, selects the appropriate CNC processing equipment and the storage and transportation system of workpieces, tools and other materials, and is controlled by the computer, so it can automatically adjust and realize the batch and efficient production of a variety of workpieces within a certain range (that is, it has "flexibility"), and can change the product in time to meet the market demand.

FMS has both processing and manufacturing functions and partial production management, so it can comprehensively improve production efficiency. The range of FMS processes is constantly expanding and can include blank fabrication, machining, assembly, and quality inspection. Most of the FMS used are used for machining, but also for stamping and welding.