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 , and grind and de-sand the blank;

2. Confirm the placement of the workpiece after the machine and the sequence of the processing process, and complete the table alignment;

3. points If it is required to 'divide the rod' in the middle, the speed is 501 R/M, if the 'cutter' is required for the middle, the speed depends on the size of the cutter. The number of heights to ensure the accuracy of the centring, can be checked with 'G0G54X0Y0' after the centring;

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. Before each process, the tools used must be strictly confirmed Whether it is consistent with the process;

2. When installing the tool, it is necessary to confirm whether the length of the blade and the selected clamping tool head are suitable;

3. Set the tool every time in the same workpiece When cutting, it must be kept in the same area to ensure the accuracy of the tool when receiving the tool;

4. Use air blowing as much as possible in the roughing process, and use oil injection in the smoothing process;

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 shall not Leave the CNC machine tool, or regularly check the operation status of the CNC machine tool, if you need to leave the site halfway, it must be approved by the relevant personnel;

7. If it is found that there is too much machining allowance during the processing, Then you must use 'single segment' or 'pause' to clear the X, Y, Z values, then mill them out manually, and then shake them back to 'zero point' to make it run automatically;

8. Processing process If a knife injury is found during the operation, 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.CNC When the CNC machine tool is running, it is strictly forbidden to open the 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 turn off the power of the CNC machining machine console in turn and the main power supply;

13. In case of thunderstorm, the power supply must be cut off immediately and stop working.

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