First, the surface precision of the cnc part processing problem:
the reason:
1. The cutting parameters are unreasonable, and the surface of the workpiece surface is rough.
2. The cutting edge of the tool is not sharp.
3. The tool is too long and the blade is too long.
4, chip removal, blowing, oil is not good.
5, programming the way of the knife, (you can consider taking the down milling as much as possible).
6, the workpiece has burrs.
improve:
1. Cutting parameters, tolerances, margins, and speed feed settings should be reasonable.
2. The tool requires the operator to check from time to time and replace it irregularly.
3. When the tool is clamped, the operator is required to clamp as short as possible, and the blade should not be too long.
4, for the flat knife, R knife, round nose knife undercut, the speed feed setting should be reasonable.
5, the workpiece has burrs: the root of our machine tools, tools, the way of the knife has a direct relationship. So we need to understand the performance of the machine and make a knife for the burr.
Second, cnc parts processing problems overcut:
the reason:
1, the knives, the tool strength is not too long or too small, resulting in the tool knives.
2. The operator is not working properly.
3. The cutting allowance is not uniform. (eg: 0.5 on the side of the surface and 0.15 on the bottom)
4, improper cutting parameters (such as: too much tolerance, SF set too fast, etc.).
improve:
1, the principle of using the knife: can be big or small, can not be short.
2, add a clear angle program, the balance should be as even as possible, (the side and the bottom of the balance remain the same).
3. Reasonably adjust the cutting parameters, and round the corners at the large margin.
4, using the machine tool SF function, the operator fine-tuning the speed to achieve the best results in machine cutting.
Third, the problem of cnc parts processing problems:
the reason:
1. The operator is not accurate when operating manually.
2. There are burrs around the mold.
3, the rod is magnetic.
4. The four sides of the mold are not vertical.
improve:
1. Manual operation should be carefully checked repeatedly, and the points should be at the same height as much as possible.
2. Use a whetstone or a trowel to remove the burr around the mold and wipe it with a rag. Finally, confirm with your hand.
3. Before the mold is divided into the middle, the rod will be demagnetized first (the ceramic can be used to separate the rod or other).
4, the school table to check whether the four sides of the mold are vertical, (the verticality error is large and the fitter review program).
Fourth, cnc parts processing problem of the knife:
the reason:
1. The operator is not accurate when operating manually.
2. The tool is clamped incorrectly.
3. The blade on the flying knife is wrong (the flying knife itself has a certain error).
4. There is an error between the R knife and the flat knife and the flying knife.
improve:
1. Manual operation should be carefully checked repeatedly, and the knife should be at the same point as much as possible.
2. Use a wind gun to blow clean or rag to clean the tool when it is clamped.
3. A blade can be used when the blade of the flying knife is to measure the arbor and the bottom of the light.
4. A separate tool setting program can be used to avoid the error between the R knife and the flat knife.
