Roller equipment nc machine tools system maintenance

Roller roller types of nc machine tool is used in the processing industry, various types of CNC machine tool because of its function, structure and the system of different, each has its different characteristics.Its maintenance content and rules also has its distinguishing feature each, concrete should be based on the machine type, model and actual usage, and with reference to the machine specification requirements, to develop and establish the necessary maintenance regularly, grading system.China roller industry network compiled under the roller device of nc machine tools system maintenance is for your reference.1 CNC system maintenance 1) strictly comply with operation procedures and maintenance system (2) should be less as far as possible open numerical control cabinet and heavy current cabinet door in the machining workshop will typically have oil mist in the air, dust, and even metal powder, once they fall in the numerical control system in the circuit board or electronic device, easy to cause the insulation resistance between the components to drop, even cause the damage of components and circuit board.Some users in order to make the numerical control system in the summer can overload long-term work, take the door of the open numerical control cabinet to heat dissipation, which is a highly desirable method, it will eventually lead to damage of the acceleration of CNC system.3) regular cleaning the cooling ventilation system of numerical control ark should check whether the CNC on the cooling fan is working normally.Once every half a year or every quarter to check air duct filters are blocking phenomenon, if the filter dust accumulation is overmuch, not clear in time, will cause in numerical control cabinet temperature too high.4) the regular maintenance of CNC system input\/output devices in the 80 s before the production of CNC machine tools, mostly with photoelectric paper tape reader, if read part with contaminated, will lead to read error information.Therefore, must be in accordance with the provisions of photoelectric reading machine maintenance.5) regular inspection and replacement of the dc motor brush dc motor brush the transition of wear and tear, will affect the performance of the motor, motor damage even.Therefore, to deal with motor brush for regular inspection and replacement.CNC lathe, CNC milling machine, machining center, etc., should be checked once a year.6) regular change storage batteries in general nc system for CMOSRAM storage device is equipped with rechargeable battery circuit maintenance, to ensure that the system can maintain its storage contents during without power.In general, even failure, should also be replaced once a year, to ensure the system to work normally.Battery replacement shall be carried out in the numerical control system of power supply condition, when the replacement in case loss of information in RAM.7) standby circuit board maintenance spare copies of the printed circuit board for a long time need not when, should be installed on a regular basis to the electricity in the numerical control system for a period of time, in case of damage.2 mechanical parts maintenance 1) of the main drive chain maintenance regularly adjust tightness of the spindle drive belt, turn to prevent lost caused by belt skid phenomenon;Check the spindle lubrication of constant temperature tank, adjust temperature range, timely supply of oil, and cleaning the filter;Cutter clamping device in the field of the spindle after long time use, can produce clearance, affect the tool clamping, need to adjust the hydraulic cylinder piston displacement.2) ball screw thread deputy vice of maintenance periodically check, adjust the screw thread axial clearance, ensure accuracy of reverse transmission and axial stiffness;On a regular basis to check whether there is loose screw and lathe bed connection;Screw protective device with a damage to change in time, to prevent dust or chip in.3) maintenance knife library and change the knife manipulator are strictly forbidden to put the overweight, super long knives into knife library, to avoid a manipulator tool change when off a knife or cutting tool and the workpiece and fixture collision;Check the back to the zero position of the tool storage is correct, check the spindle back in knife point location is in place, and timely adjustment;When turned on, should make knife library and manipulator empty running, check whether the parts work is normal, especially the travel switch and solenoid valve can normal action;Check and reliable tool in manipulator locked tight, found abnormal should be handled in time.3 hydraulic, pneumatic system maintenance on a regular basis on the lubrication, hydraulic, pneumatic system of filter and clean or replace filters or points;Regular inspection and replacement of oil test for hydraulic system of hydraulic oil.On a regular basis to the pneumatic system points * gas filter water;4 precision machine tool maintenance level of machine tool on a regular basis and mechanical precision check and correction.Mechanical precision calibration method has two kinds of hard and soft.Its soft compensation method is mainly through the system parameters, such as screw backlash compensation, the compensation, machine tool coordinate position precision fixed-point return reference point position correction, etc.;When hard method will make the machine overhaul, the guide rail was carried out such as scraping, ball screw nut pair preload adjustment reverse clearance, etc.