Detailed introduction of the six basic knowledge of CNC grinding machine

Grinding methods can be divided into cylindrical grinding, internal grinding, centerless grinding, surface grinding, forming grinding, gear grinding, thread grinding, east-west grinding, general lathe surface grinding, etc. Corresponding to the numerical control grinding method, with the development of numerical control technology, it has become more and more important in the grinding process.

　　CNC grinder can process some special parts that cannot be processed on general grinders (such as special curved shaft parts, shaped parts and molds with more than three coordinate requirements), so it is used to processing a wide range of parts. In order to maximize the economic benefits of CNC grinding machines, the following processing objects can be given priority.

　　 (1) The efficiency of repetitive production parts is better

　　Prepared man-hours for processes using CNC grinding machines have a high share. For example, preparation of process analysis, preparation of programs, adjustment and trial cutting of the first parts.

The sum of these summarized man-hours is often several tens to hundreds of times that of the processing of single parts, but the contents of these CNC lathe operations (such as special general lathe fixtures, process files, programs, etc.) can be saved and used repeatedly, so one kind When the parts are successfully trial-manufactured on a CNC grinding machine and then repeatedly put into production, the production cycle is greatly reduced, the cost is also less, and better economic benefits can be achieved.

　　 (2) Requirements for key parts of small and medium batches that focus on ensuring processing quality and can be produced efficiently

　　Controlled grinding machine can realize high-precision, high-quality and high-efficiency grinding under computer control. It can save many special process equipments than the special grinding machine processing, has a strong flexible manufacturing capacity and achieves better economic benefits.

　　Compared with the general grinder, it can remove many artificial disturbance elements in the long process flow of messy processing, the precision and interchangeability of the processed parts are good, and the processing efficiency is high.

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　　 (3) The processing batch of parts should be larger than the batch of general grinding machines

　　Numerical control grinding When processing non-CNC grinding machines for medium and small batch parts, due to various reasons, pure cutting time only accounts for 10%-30% of the actual working hours. When processing on a CNC grinding machine with a multi-process gathering such as a grinding processing center, this share may rise to 70%-80%, but the preparation adjustment hours are often much longer, so the parts batch will be too small. Not economical.

　　 (4) The processed parts should fit the technological characteristics of the multi-process gathering processing of the CNC grinder

When the CNC grinder is processing parts, the state of the workpiece cut by the grinding wheel is completely the same as that of the corresponding non-CNC grinder, but it can perform some composite machining with machining accuracy requirements. For example, in terms of grinding range, the general grinder is mainly used to grind cylindrical surfaces. , The end surface of the tapered surface or stepped shoulder is generally grinder grinding.

　　In addition to CNC cylindrical grinder, it can also grind torus (including convex and concave surface and concave only surface), as well as the above various forms of messy combined surface.

　　(5) Balance of parts' summative processing capacity

　　 As a single CNC grinder, it is difficult to complete all the processing content of a part, and it needs to be matched with the processing procedures of other equipment, so there is a requirement for the production cycle and the balance of the production capacity of the workshop.

　　 Therefore, it is necessary to give full play to the processing characteristics of CNC grinding machines, and CNC grinding machines must reasonably organize supporting balancing procedures on other processing equipment.

　　 (VI) Some special parts processing considerations

Although some parts are processed in small batches, general lathes have messy shapes and high quality, and require good interchangeability. This cannot be achieved on non-CNC grinding machines, and can only be processed on CNC grinding machines, such as parabolic and cycloid cams. And special mirror mirror surface.