Machining mainly includes two categories: manual processing and numerical control processing. Manual processing refers to the method of processing various materials by mechanical workers manually operating mechanical equipment such as milling machines, lathes, drilling machines, and sawing machines. Manual processing is suitable for small batch and simple part production. Numerical control machining (CNC) refers to the use of numerical control equipment by mechanical workers for processing. These numerical control equipment include machining centers, turning and milling centers, wire electric discharge equipment, thread cutting machines, etc. The vast majority of machining workshops use CNC machining technology. Through programming, the position coordinates (X, Y, Z) of the machined workpiece in the Cartesian coordinate system are converted into a programming language, and the CNC controller of the CNC machine tool controls the axes of the CNC machine tool by recognizing and interpreting the programming language, and automatically according to the requirements Material is removed, resulting in a finished machined workpiece. CNC machining processes workpieces in a continuous manner, which is suitable for large quantities of parts with complex shapes.
Machining is mainly to process the parts we need, such as: components of bicycles, components of automobiles, airplanes, etc. All the parts we want belong to the category of machining. Of course, machining is only the process of realizing the final product. Commonly used mechanical processing equipment includes digital display milling machine, digital display forming grinder, digital display lathe, EDM machine, universal grinder, machining center, laser welding, medium wire feed, fast wire feed, slow wire feed, external cylindrical grinder, internal cylindrical grinder , precision lathes, etc., which can be used for turning, milling, planing, grinding and other processing of precision parts. This type of machinery is good at turning, milling, planing, grinding and other processing of precision parts. 2μm or even ultra-precise accuracy.
Machining production process
The production process of a machine refers to the entire process of making a product from raw materials (or semi-finished products). For machine production, it includes transportation and storage of raw materials, production preparation, blank manufacturing, processing and heat treatment of parts, product assembly, debugging, painting and packaging, etc. The content of the production process is very extensive. Modern enterprises use the principles and methods of systems engineering to organize and guide production, and regard the production process as a production system with input and output. It can make the management of the enterprise scientific and make the enterprise more responsive and competitive.
In the production process, the process of changing the shape, size, position and nature of the production object to make it a finished or semi-finished product is called a process. It is an essential 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 parts and the assembly process of machines. Other processes are called auxiliary processes. Processes, such as transportation, storage, power supply, equipment maintenance, etc. The technological process is composed of one or several sequentially arranged processes. A process is composed of several work steps, and a work step is composed of several tool passes.
The process is the basic unit of the mechanical processing process. The so-called process refers to the part of the process that one (or a group of) workers continuously completes on the same workpiece (or several workpieces at the same time) on a machine tool (or a working place). 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. Working step is the part of the process that is continuously completed under the condition that the machined surface remains unchanged, the machining tool remains unchanged, and the cutting amount remains unchanged. The cutting tool is also called the working stroke, which is the working step completed by the processing tool on the processing surface once.
To formulate the mechanical processing process, it is necessary to determine how many processes the workpiece will go through and the order in which the processes are carried out. The abbreviated process that only lists the name of the main process and its processing sequence 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 formulation of the process route must follow certain principles.