Large machining processes and management requirements

by:NJPE     2020-06-29
Large mechanical processing in the process of production, and raw materials into a product is directly related to the process is called process. It includes blank parts manufacturing, precision machining, heat treatment, quality inspection, and machine assembly. And in order to ensure the normal process required for tooling, fixture manufacturing, machine tool maintenance belong to assist process adjustment. In the process of technology, dalian heavy machinery parts processing method in a certain order gradually change the blank shape, size, position and performance, etc. , and become qualified parts of that part of the process is called the machining process. Large mechanical processing to a certain extent, to facilitate the procedure of preparation, execution and production organization management, to a certain extent, process needs to be divided into different levels of unit. They are step process, installation, location, industry and feed. The process is the basic unit in the process of technology. Parts of the precision machining process is composed of several working procedure. In a process might contain one or several installation, each installation may contain one or more stations, each station may contain one or several steps, each step work may include one or a few knife. The forced vibration of 1 in the process of large mechanical processing. Forced vibration, is due to the process system outside the vibration of the periodic interference caused by the action of forces. Mechanical processing of general machinery of forced vibration and forced vibration, forced vibration at the same frequency and the frequency of the disturbing force or multiples of it. 2. The causes of forced vibration, forced vibration of the vibration source and from the inside of the machine tool machine vibration source and the conversion from machine external source two kinds big. Closed source very much, but they are all passed to machine foundation, through adding to isolate vibration isolation foundation. Machine vibration source is mainly: (again 1) The vibration of the machine tool motor. ( 2) Machine tool high-speed rotating vibration caused by unbalance. ( 3) Machine tool drive mechanism defects caused by vibration, such as the gear side clearance, belt tension (such as the change of the 4) The impact caused by vibration in the process of cutting. ( 5) Reciprocating inertia force of the moving parts caused by vibration
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