When we use carving machines, we often encounter situations where the cutting edge frequently breaks during processing, which affects our normal use. What are the reasons for frequent knife breakage,In fact, the problem of tool breakage in carving machines is caused by changes in the force on the cutting tool or excessive factors affecting it. There are seven reasons that can affect the breakage of carving machines, including cutting tools, materials, machine tools, processes, surrounding environment, control systems, and auxiliary equipment.
1. Carving machine tools:The hardness of the tool, the strength of the tool, the sharpness of the tool, as well as the particularly important length of the tool extension and the smoothness of the front cutting surface of the tool.
(1) The hardness of cutting tools is related to coating materials, the particle size of the tool's own material, and the micro geometric angle of the tool.
(2) The factors related to the strength of cutting tools include the material itself and the influence of alloy elements.
(3) The sharpness of the tool is affected by factors such as the grinding process, the number of grinding wheels used, the number of grains on the tool itself, and the degree of rake and rake angles.
2. Carving machine material:Whether there are impurities in the material and whether the hardness of the material is too high.
3. Carving machine tool:The factors related to machine tools are whether the machine tool we choose is suitable, whether it is not suitable for processing this material, whether the machine tool is leveled, and whether it is leveled may cause tool breakage. Is the speed of the spindle motor too low? If the speed of the spindle motor is too low, the amount of cutting per tooth per revolution will increase, which will increase the cutting force and cause tool breakage. Generally speaking, it is better to use a higher spindle speed.
4. Carving machine technology:The issue with the manufacturing process is whether the machining allowance is unreasonable and whether there is a stepped allowance, which can cause vibration due to changing cutting forces during machining, leading to tool breakage. Therefore, it is necessary to increase semi precision machining. Another issue is whether the amount of knife used is too large. Of course, there are many other factors in the process, which will not be discussed here.
5. Surrounding environment:The relevant factors of the surrounding environment include whether there is a seismic source and whether the voltage provided is stable.
6. Control system:Whether the factors related to the control system have been smoothed and the priority mode is correct directly affects the starting speed of the machine tool. The higher the starting speed, the more likely it is to produce vibration, which can easily lead to tool breakage.
7. Auxiliary equipment:The relevant factors of auxiliary equipment include whether chip removal is smooth, whether secondary cutting is avoided, and more importantly, the problem of tool loading.
Is there dust on the carving machine tool and clamp, and is the cutting force too strong. Are the clamps and nuts intact. It is important to check if the tool extension is too large.
How to solve the problem of broken knives in carving machines? If there is a problem of broken knives during the machining process of the carving machine, it is necessary to analyze the above aspects, combine with the actual situation, find the cause of the broken knives, and then take corresponding measures for precise processing.