Numerical control lathe in daily maintenance
From:Taian Haishu Machinery Co.,Ltd. Updatetime:2016-1-4 9:14:29 Views：
Mechanical precision calibration method has two kinds of hard and soft. Its soft compensation method is through the system parameters, such as screw backlash compensation, the coordinate positioning, fixed compensation, precision machine to
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 eventually lead to damage of the acceleration of CNC system.
(3) regular cleaning shall examine the CNC numerical control cabinet cooling ventilation system on the cooling fan is normal work.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 numerical control system of the regular maintenance of input/output devices
(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, and even cause the damage of the motor.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 maintenance circuit, different electric parts to ensure that the system can maintain its storage contents.In general, even if not 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) maintenance spare spare circuit boards 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. The maintenance of mechanical parts
(1) of the main drive chain maintenance regularly adjust tightness of the spindle drive belt, prevent the lost caused by words with transfer phenomenon;Check the spindle lubrication temperature mailbox, adjust temperature range, timely supply of oil, and filter cleaning;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 vice maintenance periodically check, adjust the screw thread vice axial clearance, ensure accuracy of reverse transmission and axial stiffness;Regularly check the screw and the link of the lathe bed for loose;Screw protective device with a damage to change in time, to prevent dust or chip in.
(3) the knife library and change the knife manipulator maintenance 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 be normal operation;Check and reliable tool in manipulator locked tight, found abnormal should be handled in time.
3. The hydraulic and 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 for pressure points on the water filter system
4. The accuracy of machine tool maintenance level of machine tool on a regular basis and mechanical precision inspection and correction.
Mechanical precision calibration method has two kinds of hard and soft.Its soft compensation method is through the system parameters, such as screw backlash compensation, the coordinate positioning, fixed compensation, precision machine tool back to the 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.
