CNC grinding machines can process some special parts th […]
CNC grinding machines can process some special parts that cannot be processed by ordinary grinding machines (such as shaft parts with special curves, special-shaped parts with more than three coordinates, molds, etc.), so it is suitable for a wide range of processed parts. In order to maximize the economic benefits of CNC grinding machines, the following processing objects can be prioritized.
(1) The efficiency of parts that are put into production repeatedly is better
The preparation time of the process using the CNC grinding machine occupies a high proportion. For example, process analysis and preparation, programming, adjustment and trial cutting of the first part of the part, etc., the sum of these comprehensive man-hours is often dozens to hundreds of times the processing time of a single part, but the work content of these CNC lathes (such as special ordinary lathe fixtures, Process files, programs, etc.) can be saved and used repeatedly, so when a part is successfully trial-manufactured on a CNC grinding machine and then put into production repeatedly, the production cycle is greatly reduced, the cost is also less, and better economic benefits can be achieved.
(2) Key parts in medium and small batches that are required to focus on ensuring processing quality and can be efficiently produced
CNC grinding machine can realize high-precision, high-quality and high-efficiency grinding under computer control. Compared with special grinding machines, it can save a lot of special process equipment, has strong flexible manufacturing capabilities and obtains better economic benefits. Compared with ordinary grinding machines, it can eliminate many artificial interference factors in the long process of complex processing, and the precision and interchangeability of processed parts are good, and the processing efficiency is high.
(3) The processing batch of parts should be larger than that of ordinary grinders
When CNC grinding is used to process medium and small batch parts, due to various reasons, the pure cutting time only accounts for 10%-30% of the actual working hours. When processing on a CNC grinding machine with multiple processes such as a grinding center, this proportion may rise to 70%-80%, but the preparation time for adjustment is often much longer, so the batch of parts will become too small. Uneconomical.
(4) The processed parts should meet the technological characteristics that can give full play to the multi-process centralized processing of the CNC grinding machine
When the CNC grinder processes parts, the grinding wheel cutting the workpiece is exactly the same as the corresponding non-NC grinder, but it can perform some compound processing that requires machining accuracy. For example, in terms of the grinding range, the ordinary grinder is mainly used for grinding cylindrical surfaces. , Conical surface or stepped shoulder end face ordinary grinding machine grinding, in addition to CNC cylindrical grinding machine, can also grind torus (including convex and concave surface), as well as the above various forms of complex combined surface.
(5) Balance of comprehensive processing capabilities of parts
As a single CNC grinding machine, it is difficult to complete the entire processing content of a part, and it needs to be transferred and coordinated with the processing procedures of other equipment, so there is a requirement to balance the production takt and workshop production capacity. Therefore, it is necessary to consider giving full play to the processing characteristics of the CNC grinder, and the CNC grinder should reasonably arrange the matching balancing process on other processing equipment.
(6) Considerations for the processing of some special parts
Although some parts are processed in small batches, ordinary lathes have complex shapes, high quality, and require good interchangeability. This cannot meet the above requirements on non-NC grinding machines, and can only be processed on CNC grinding machines, such as parabolic and cycloid cams. As well as special types of mirrors and mirrors.