In the machining process, we must know the classification of machining processes, but also to understand the principles of the division of machining processes, so what are the principles of the division of machining processes?
Dividing principle one: the process
One or more operators in a workplace or a machine tool on one or more workpieces to continuously complete the required mechanical processing process is called the process. The division of the process is based on whether the workplace changes and whether the work process is continuous.
For example, on a lathe processing a batch of shafts, either for each shaft continuously for roughing and finishing, or first for the entire batch of shafts for roughing, and then in turn for their finishing.
In the first case, machining consists of only one process; while in the second case, due to the interruption of the machining process continuity, machining becomes two processes, although it is performed on the same machine tool. The work process is the basic unit that makes up the machining process and is also the basic unit of the production plan.
Dividing principle two: installation
In the machining process, so that the workpiece in the machine tool or in the fixture to occupy a correct position and be clamped process, known as clamping, some workpiece in the machine tool may need to go through multiple clamping to complete the work of a process. Mounting refers to the part of the workpiece after a clamping process is completed. For example, in the lathe machining axis, first from one end of the surface, and then turn around and then process the other end, the process content includes two installation.
Delineation Principle III: Workstation
The use of rotary (or shift) fixture, rotary table or in multi-axis machine tool processing, the workpiece in the machine once after clamping, to go through a number of positions in turn for processing, the workpiece in the machine occupies each position on the part of the process completed is called the workstation.
In order to reduce the clamping error and time loss due to multiple clamping, often using a variety of rotary table, rotary fixture or mobile fixture, so that the workpiece in a clamping, successively in several different positions for processing.
Dividing principle four: work step
Under the condition that the machined surface remains unchanged and the processing tools remain unchanged, the part of the process that is completed continuously is called a work step. Production is also often called “feed”. The entire machining process consists of a number of processes.
Each process can include one work step or several work steps. Each work step usually includes one work stroke, but can also include several work strokes. Public number “Mechanical Engineering Digest”, a refueling station for engineers!
In order to increase productivity, the work step of machining several machining surfaces with several tools at the same time is called a compound work step, which can also be regarded as a work step, for example, a combination drilling machine for machining multi-hole box holes.
Dividing principle five: tool walking
Machining tool in the machining surface processing once completed the work step part is called go tool. For example, if the shaft parts to cut the metal layer is very thick, it is necessary to cut several times, then each cut is called a walk tool. Therefore, in the cutting speed and feed amount of the premise of the same tool to complete a feed movement is called a walk.
The above five are the principles of the division of machining process, machining process is composed of a number of sequential processes, and the process is composed of installation, station, work step, tooling, etc..
In the process of machining, in accordance with technical standards and the correct parameters for the size, size, location, shape of the part is often referred to as the machining process. Machining process is an important part of the product in the production process, and will directly affect the entire production process and even the quality of the product. Therefore, the machining process is very important.
The importance of machining process
1, machining process must follow the machine processing manufacturing technology, but also need to determine the actual situation of the production process. Machining process protocols are mainly for launching new products and changing technology and equipment. In many cases, the processing process protocol also includes each procedure and process route.
2, most of the machinery and equipment is mainly large equipment, and the actual production needs to be considered when assembling machinery and equipment. In the process of machining, each link needs to ensure its scientific rationality to avoid safety production problems caused by the improper use of equipment. The use of mechanical processing technology can effectively monitor the operation of machinery and equipment in a comprehensive manner, can be found in a timely manner mechanical failure, and the idea of management and technical personnel to find timely repair.
3, the development of mechanical processing technology, if reasonable, can effectively improve the efficiency of mechanical production, improve the mechanical processing technology and its self-made also the actual situation combined to help achieve the modernization of machinery, effectively improve the accuracy and tightness of mechanical manufacturing.
Mechanical processing process optimization program
1, reduce the machining error rate: in the process of mechanical processing, the error rate of mechanical processing will have a very serious impact on the quality of the product. So in the optimization of machining to reduce the machining error rate. In general, the machining error rate occurs in the primary stage of product processing, but also the design stage. So as a designer should analyze the problems in the design through scientific algorithms as well as reasonable planning, and try to reduce the error rate.
2, select the optimal machining process route: machining process route is a very important part of the machining process processing. In order to reduce the impact of the production process on the environment. We have to be based on the actual situation to the development of the machining process route. In the process of developing to take into account the production efficiency and processing of finished lights factors, but also should be combined with the surrounding environment and resources. Overall improve the efficiency of mechanical processing at the same time, the environment well protected, so as to achieve sustainable development.
3, improve the production efficiency of mechanical processing equipment: mechanical processing process is mainly dependent on the processing equipment. At the same time mechanical processing equipment is also an important process for the production of mechanical products. Randomly for the rationalization of mechanical processing equipment, the need for the selection of equipment according to the actual situation, the introduction of advanced equipment at home and abroad, in order to provide the basis for the realization of a high level of processing technology.
Machining process is mainly the mechanical operation behavior in the process of machinery manufacturing, with the continuous improvement of the technical level of machining process, China’s processing technology is also developing rapidly. So for the machining process, enterprises need to conduct research in many aspects to enhance the comprehensive competitiveness of enterprises.