Maintenance of CNC machine tools and problems that should be paid attention to in CNC machining
For CNC machining, as long as CNC machining equipment (CNC numerical control machining machine) has a good reputation in the industry and the price is reasonable, CNC machining technology is in a leading position in the industry, but they often ignore the most critical Operation and maintenance of CNC machine tools. There are also matters needing attention in CNC machining. Let's take a look.
Operation of CNC machine tool in CNC machining center
1. Before starting the machine, confirm the model, size and machining allowance of the machining blank against the program sheet Quantity, grinding and de-sanding of the blank;
2. Confirm the placement of the workpiece after the machine and the sequence of the machining process, and complete the table alignment;
3. In the middle, if the 'middle stick' is required, the speed is 501 R/M, and if the 'cutter' is required in the middle, the speed depends on the size of the cutter. The number of the same height to ensure the accuracy of the centering, after the end of the centering, you can use 'G0G54X0Y0' to check;
4. Before the formal processing, the programmer should finally confirm whether the workpiece placement position and the number are correct. .
Maintenance and maintenance of CNC machine tools in CNC machining centers
1. Clean CNC machine tools half an hour before going to work every day, such as using air gun or oil gun to clean chips , there must be a tool on the spindle;
2. The taper hole of the spindle must not be blown with an air gun or an oil gun to avoid blowing chips and other particulate debris into the spindle hole, which will affect the cleaning of the spindle;
3. Check whether the lubricant machine is working normally and whether the lubricant is sufficient, and start it in the normal order;
4. Before the CNC machine tool is officially working, start the spindle (501 R/M) Perform spindle warm-up.
The problems that should be paid attention to in CNC machining are:
1. Whether the tool is in line with the process;
2. When installing the tool, it must be confirmed whether the length of the blade and the selected clamping tool head are suitable;
3. Each time in the same workpiece When cutting the knife, it must be kept in the same area to ensure the accuracy of the knife when receiving the knife; p>
5. Before the oil is sprayed with the light knife, the aluminum slag on the CNC machine must be cleaned to prevent the aluminum slag from absorbing oil;
6. When the CNC machine tool is running by itself, the operator must Do not leave the CNC machine tool, or regularly check the running status of the CNC machine tool, if you need to leave the site halfway, you must get approval from the relevant personnel;
7. If it is found that there is too much machining allowance during the processing , you must use 'single segment' or 'pause' to clear the X, Y, Z values u200bu200bto zero, then mill them out manually, and then shake them back to 'zero point' to make it run automatically;
8. Machining If a knife injury is found during the process, the operator should stop the knife immediately, such as pressing the 'emergency stop' button or 'reset' button, or adjusting the 'feed speed' to zero, etc.;
9. When the CNC machine tool is running, it is strictly forbidden to open the machine door to avoid flying knives or flying parts;
10. The workpiece should be cleaned and deburred in time after blanking; , the operator must hand over in a timely and accurate manner to ensure that the subsequent processing can be carried out normally;
12. Before closing, make sure that the tool magazine is in the original position, the XYZ axis is in the center position, and the CNC machine tool operating table is closed in turn Power supply and main power supply;
13. In case of thunderstorm, the power supply must be cut off immediately and stop working.
