Precautions when clamping workpieces on CNC lathes

CNC lathe machining process is similar to ordinary lathe, but CNC lathe is a continuous attachment for automatic processing to complete all the machining process. Therefore, it is necessary to pay attention to the following points: First, the appropriate tool selection: (1) When rough turning, choose the tool with high strength and good durability. In order to meet the demands of rough machining in terms of large feed volumes (2), when fine machining, choose a tool with high precision and good durability, to ensure that it meets the requirements of processing accuracy (3), to reduce blade change time and for the convenience of blade inspection. It should be tried to use multi-blade cutters and cutters. Properly selecting the number of cutters. Whether or not to choose the right number of cutters is of utmost importance to the full utilization of the potential of the lathe and the cutting efficiency of the tool. In order to achieve high quality, high efficiency, low cost and safe operation, when roughing, first consider choosing the largest possible feed amount, then choose a larger feed amount, and finally determine the appropriate cutting speed. Increasing the feed amount can reduce the number of runs. Increasing the feed quantity is beneficial to the cracking of the workpiece, so according to the above principle, the choice of rough machining cutting quantity is conducive to improving production efficiency, reducing tool consumption and reducing processing costs. When fine machining, the requirements for processing accuracy and surface smoothness are higher. The components in the processing are less numerous and more uniform. Therefore, when choosing the number of fine machining cuts, it is necessary to take into account how to ensure the processing quality, and on this basis, try to improve the efficiency. Therefore, when fine machining, it is advisable to choose a smaller (but not too small) feed and feed quantity. And choose high-performance cutting materials and appropriate geometrical parameters to optimize the cutting speed as much as possible. Second, the proper selection of fasteners (1) try to choose general fasteners to fasten the workpiece, avoid using special fasteners.  (2) Workpiece alignment reference points to reduce positioning errors. Third, the determination of the processing path refers to the CNC lathe machining process, the movement path and the direction of the corresponding parts of the tool: (1) can ensure the processing accuracy and rough surface requirements.  (2) should try to shorten the processing distance and reduce the blank movement time of the tool. Fourth, the relationship between the processing path and the processing components. At present, in CNC lathes are not yet widely applicable. In general, additional components should be placed on the rough workpiece, especially the punched components. Casting Solid casting is arranged for processing on a conventional lathe. If processing is required with a CNC lathe, you must pay attention to the flexible programming arrangement.