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What are the problems that CNC machining is prone to during operation?

by:QY Precision      2020-04-15
As we all know, today's CNC machining process has high efficiency and good quality, especially the precision is the most meticulous. However, we often say that there are advantages and disadvantages. If we do not operate properly during CNC machining, it is easy to bring some unavoidable problems. From the experience of Shenzhen CNC machining manufacturers, the common problems in CNC machining operation generally have the following points: Question 1: the reason why the CNC machining operation process is too scattered is that the preparation time is not enough, the programming is simple, the operation is simplified, the tool is easy to adjust and the tool is used to ordinary machining. This results in product quality (Position tolerance) Not easy to guarantee, production efficiency can not play well. Therefore, CNC machining technicians and operators should be fully familiar with CNC machining knowledge, try more to master relevant knowledge, and use the method of process concentration as much as possible, and use it several times, it will naturally reflect its advantages. After the process concentration, the unit processing time increased. We arranged the two equipments face to face, and realized that one person operated two equipments, the efficiency was greatly improved, and the quality was well guaranteed. Question 2: The CNC machining sequence is unreasonable. Some CNC machining operators often make the machining sequence extremely unreasonable considering some problems in preparation. CNC machining is usually processed according to the requirements of the general machining process, such as coarse and fine (Change knife) , First inside and then outside, reasonable selection of cutting parameters, etc. , so that the quality and efficiency can be improved. Use G00 with caution (G26, G27, G29) The quick positioning instruction G00 instruction brings great convenience to programming and use. However, if it is not properly set and used, it will often cause adverse consequences such as overshoot when returning to zero due to excessive speed setting, reduced precision, and injury to the guide rail surface of the equipment. The zero-return route is not noticed, and it is easy to cause safety accidents that collide with workpieces and equipment. Therefore, when considering the use of G00 instructions, it should be considered thoroughly and not at will. Question 3: strengthening the search and trial operation of the program in CNC machining, special attention should be paid to strengthening the search and trial operation of the program. After the program is entered into the control system, the operator should use the SCH key and & uarr; , Down, & Larr; , & Rarr; Move the key for uncertainty and determination retrieval, and modify the program if necessary to ensure the accuracy of the program. At the same time, before the formal execution of the program processing, it must go through the program trial run (Turn on the power amplifier) To confirm whether the processing route is consistent with the design route. The above three points are the problems that CNC machining is prone to during operation. In fact, we may encounter other size problems in actual work, however, as long as we master the knowledge and skills related to CNC machining, CNC machining equipment can give full play to the benefits of the enterprise.
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