News
Some operational skills and experiences in CNC lathe machining
Release time:
Oct 17,2023
The basic principle of CNC lathe machining is: first rough machining, removing excess information on the workpiece, and then precision machining; Vibration should be prevented during processing; There are many reasons to prevent thermal denaturation during workpiece processing, which can cause oscillation, possibly due to excessive load; It may be due to resonance between the machine tool and the workpiece, or it may be due to the lack of rigidity in the machine tool, or it may be caused by tool passivation. We can reduce oscillations by:; Reduce the lateral feed rate and machining depth, check if the workpiece is firmly clamped, increase the tool speed, and reduce the speed to reduce resonance. In addition, check if it is necessary to replace new tools.
Tips for preventing machine tool collisions:
The collision of machine tools can greatly damage their accuracy and have different impacts on different types of machine tools. Generally speaking, machines with weaker rigidity have greater impact. So for high-precision CNC lathes, collision must be absolutely eliminated. As long as the operators are careful and master certain collision prevention methods, collision can be completely prevented and prevented.
The main reasons for Z caused by collision are: firstly, incorrect input of tool diameter and length; The second is the input fault of the scale and other related scales of the workpiece, as well as the initial positioning fault of the workpiece; The third reason is that the workpiece coordinate system of the machine tool is set incorrectly. Perhaps the zero point of the machine tool is reset during the machining process, resulting in changes. Most machine tool collisions occur during the rapid movement of the machine tool, and the damage caused by these collisions is also significant and should be absolutely prevented. Therefore, operators should pay special attention to the initial stage of machine tool program execution and when changing tools. At this point, if the program is edited incorrectly and the diameter and length of the tool are inputted incorrectly, it is easy to cause collisions. At the end of the program, if the tool retraction action sequence of the CNC axis is incorrect, it may also cause collisions.
In order to prevent the above-mentioned collisions, operators should fully utilize the functions of the five senses when operating the machine tool, and observe whether the machine tool has abnormal movements, sparks, noise, abnormal sounds, sensations, and burnt odors. If any abnormal situation is found, the program should be terminated immediately. The machine tool can only continue to operate after the issue with the spare bed is resolved.
Overall, mastering the operation skills of CNC machine tools is a gradual process and cannot be achieved overnight. It is based on mastering the basic operation of machine tools, basic knowledge of mechanical processing, and basic programming knowledge. The operating skills of CNC machine tools are not fixed, they require the operator to fully utilize their imagination and hands-on ability, which is an organic combination of creative labor.