CNC machine debugging

Precision machine tool adjustment in the machine tool accuracy, the teacher told me to fine adjustment of machine tool bed level and geometric accuracy of the machine. After curing machine foundation, the use of anchor bolt and adjust shim fine adjustment of machine tool bed level, of ordinary machine tool, the level reading less than 0. 4 mm / 1000 mm, for high precision machine tools, the level reading less than 0. 02mm/1000mm。 All moving parts and then moving bed body, Such as column, the bed saddle and workbench, etc. ) , in each coordinate travel within observation records changes in the level of machine tool, and adjust the corresponding geometrical accuracy of the machine tool, to tolerance range. Small machine tool lathe bed, good rigidity, adjustment easy. Large and medium-sized machine tool lathe bed is mostly multipoint cushion iron bearing, in order not to make the bed additional torsion deformation, requirements in bed free state level adjusting, each bearing pad iron after all play a role, compression anchor bolt again. This can keep the long-term working stability of lathe bed after fine adjustment, improve the geometric accuracy keep sex. General machine been accuracy test before delivery, as long as the quality is stable, adjusted by the user requirements, the accuracy of machine tool can achieve before delivery. Machine function debug machine debugging is adjusted we put on the machine bed, checking and debugging process of machine tool functions. Debugging before, we should first check the machine tool numerical control system and programmable controller of setting parameters is consistent with that of random data in a table. And then test the main operating functions, safety measures and operation schedule and common instruction execution and so on, such as manual operation mode, inching mode and edit mode ( EDIT） , data input mode, MDI） , automatic operation mode, 回忆) And stroke limit protection ( Software and hardware protection) And the spindle shift instructions and all levels of speed, etc is correct. Final inspection machine work is normal auxiliary functions and accessories, such as machine tool lamp, shields and all kinds of cooling sheeting is complete; After cutting fluid box filled with cutting fluid, can test nozzle jet cutting fluid, in the use of cooling when the shield is leakage; Chip removal device can work normally; Spindle box constant temperature box works and select tool management functions and contact probe can work normally, and so on. For nc machining center knife library, also should adjust the position of the manipulator. Adjustment, let the machine run automatically tool exchange position, adjusted by manual operation with dao mechanical and unloading manipulator of the relative position of the spindle, adjusted tight ground screw for adjusting screw and knife library, then put on a few close to allow the quality of the handle, to make multiple repository to the main shaft position automatic switching from the knife, to action right, don't hit, and not to drop the knife as qualified. Machine commissioning every time I put the machine after the installation and debugging, will the machine under the condition of a certain load over a period of time to run automatically, check the function of machine tool and the workpiece to reliability. Running time generally USES to run every day 8 h, 2 ~ 3 days in a row, or continuous operation 24 h 1 ~ 2 days. This process is called after installation commissioning. Commissioning of program called test machine, can be directly used machine tool plant test machine program debugging time, also can test machine program is compiled. Test machine in the program should include: the use of numerical control system the main function ( Such as the movement of each coordinate direction, linear interpolation and circular interpolation, etc. ) , automatically change the access library of two-thirds of the knives, the highest and most commonly used spindle speed, fast and common feed speed, the automatic switching of workbench face, mainly using M instructions and macro program, measurement, etc. Commissioning, machine tool knife library should be with the handle, the handle quality should be close to the quality; Exchange work surface should be combined with load. In trial operation, in addition to the operating error caused by the fault, does not allow failure occurs with the machine, otherwise said there was a problem with the installation and debugging machine. For some small CNC machine tools, such as small economic nc machine tools, direct the whole installation, as long as debugging good bed level, inspection of qualified geometric accuracy, the electricity can be put into operation after the test.