In the process of using
cnc machine, we often cause engraving machine tool break because of improper setting and operation, from the cutter itself, this is because the cutter is not enough to withstand the current cutting force, the following will share the common reasons for carving tool cutting tool and how to solve and avoid engraving machine tool.
Engraving machine cut reason
1, the processing program: the processing program is the engraving processing instruction, it contains the position instruction and the speed instruction, is the basis of the machine tool movement, so the processing program is correct and reasonable directly affects whether the tool will break, if the processing program itself is a cutting program, then the subsequent processing can not be carried out.The main factors that affect the cutting load are cutting parameters and machining parameters. If the cutting parameters are set too large, which exceeds the tool's bearing capacity, the tool will be broken during machining.Similarly, unreasonable setting of machining parameters, such as too high feeding speed, will also break during machining.
2, the engraving machine itself engraving machine is the executor of the engraving processing, is also the engraving power provider, whether the engraving machine is chosen correctly in the processing, whether the current state of the engraving machine is normal will become the influencing factor of the cutter
3, engraving machine tool cutter is a tool for engraving processing, whether it will break with its own quality, whether the intensity is enough has a direct relationship,
4, engraving machine tool clamping state.Improper clamping of the tool, large radial runout, or the tool depth is too long, may cause cutting tool.
5, the processing material carving material is the object of processing, the material itself if the hardness is not uniform, impurities will cause the knife.
6. Workpiece clamping.If the workpiece clamping is not solid or not strong clamping will cause the knife.
7, the cutting fluid in the processing of hard metal is obvious.There is no spray coolant, or cutting fluid.Like processing stone, or very hard material, need to spray coolant, to avoid cutting tool overheating caused by breaking.
8, programming error.The program is written into the cutting depth is too large, if the cutting parameter setting is too large, beyond the capacity of the tool, the tool is too fine, resulting in no chip, thereby breaking the tool.
9. Spindle motor.Whether the speed of spindle motor is too low.If the spindle motor speed is too low, the gear cutting will become larger, so the cutting force will become larger, it will cause the cutter to break. Generally speaking, the spindle speed we use is on the high side.
10, long time no change tool in itself on the hardness, strength, and sharpness, plus speed not good control, so cutting knife is natural, so I asked often check the cutting tool wear, wear serious change to move it early, because of the wear of cutting tool not only for engraving effect is bad, the carving machine itself is bad, do not point to save the money, causing a greater loss.
11. The level of the machine operator determines the behavior of the machine operator.
12. Surrounding environment.For example, the vibration source around will affect the machining state and lead to the cutter breaking, and the abnormal working state of the machine tool will also result in the cutter breaking due to the unstable voltage or beyond the working range of the engraving machine.
How to solve:
1. When the cutting tool is suddenly broken during the operation of the engraving machine, please stop or stop the operation in time.
2, and then write down the current segment number, which is used later.
3, when the spindle completely stopped after the replacement of a new tool, because it is basically a manual tool, it will inevitably lead to a change in the height of a direction, at this time just use the knife block to re-determine the direction of the origin can be.
4. Find the "advanced start" function under the operation menu after confirmation. The dialog box requires the input of the start line segment number, which is the number recorded when the machine starts to stop.
5. If you're late, subtract a few more Numbers.By default, the end of the file is enough.In this way, the CNC woodworking engraving machine can automatically continue the unfinished part of the engraving.
Note: The point of this process is the paragraph number, according to this paragraph number can be continued.If this number is not recorded in time when the knife is broken, then the following work will be difficult to do, it is likely that the whole process before was done in vain.
How to avoid carving machine cutting as far as possible
2. Before engraving, the plate must be fixed and stable by vacuum adsorption. If there is no vacuum adsorption, the plate should be fixed and fixed horizontally.
3, CNC engraving machine tool must be upright, perpendicular to the spindle.
4, CNC engraving machine before moving, must check whether the spindle is firm, not any loose.
5. The engraving speed is also the reason for breaking the knife. The speed is slow, the temperature is high, and it is easy to break the knife.Fast speed, high resistance, easy to break knife.So when cutting, must be based on the thickness of the plate, material to control the engraving speed.
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