Production system and process of large-scale machining

Large-scale machining in the production process mainly refers to the entire process of making products from raw materials. For machine production, it includes the transportation and storage of raw materials, production preparation, blank manufacturing, parts processing and heat treatment, and product assembly. , And debugging, painting and packaging. The content of the production process is very extensive. Modern enterprises use the principles and methods of system engineering to organize and guide production, and regard the production process as a production system with inputs and outputs.
In the production process of large-scale machining, the shape, size, position and nature of the production object are changed so that it can become a finished product or a semi-finished product. The process is called a process. It is the main part of the production process. The process can be divided into casting, forging, stamping, welding, machining, assembly and other processes. The mechanical manufacturing process generally refers to the sum of the machining process of the parts and the assembly process of the machine. Other processes are called auxiliary Process, such as transportation, storage, power supply, equipment maintenance, etc. The technological process is composed of one or several sequential processes, and a process consists of several steps.
The process of large-scale machining is the basic unit of the machining process. The so-called process refers to the part of the process that is continuously completed by a worker (or a group of) workers on a machine tool (or a work site) for the same workpiece (or for several workpieces at the same time). The main feature of forming a process is that the processing object, equipment and operator are not changed, and the content of the process is completed continuously
To formulate the machining process, it is necessary to determine the number of processes and the sequence in which the workpiece will go through. Only the brief process with the name of the main process and its processing sequence is listed, which is called the process route.
The formulation of the process route is to formulate the overall layout of the process. The main task is to select the processing method of each surface, determine the processing sequence of each surface, and the number of processes in the entire process. The drafting of the process route must follow certain principles.