Maintenance of CNC machine Tools

 

Fundamental Of General Machine Maintenance

As indicated by the expansiveness of upkeep, profundity and workload, electronic mechanical gear support can be partitioned into three classifications: routine support, support and optional support. Hardware upkeep work ought to meet the "four necessities", in particular: perfect, spotless, greased up, safe.

Perfect: alludes to the devices, workpieces, extras put flawless and sensible; gadgets, lines, channeling complete, finish; parts without imperfections.

Cleaning: alludes to the hardware inside and outside clean, no tidy, no yellow robe, no dark contamination; the sliding surface, screw, rack, adapt, and so on no oil; parts don't release, no oil, Cutting, refuse perfect and clean.

Oil: on time filling or substitution of greasing up oil or oil, oil, oil meet the necessities; oil pot, oil firearm, oil container finish, flooring, oil line clean, oil striking eye, oil stream.

Safe: wellbeing of a wide range of security gadgets; the utilization of laborers acquainted with the gear execution, structure, standards and procedures, ensured operation, balanced utilize, cautious upkeep; an assortment of security assurance gadgets finish and dependable; control framework ordinary, ground Good, no mishap.

Routine maintenance

Otherwise called routine support, alluded to as "day security." It is the reason for a wide range of upkeep, concentrating on cleaning, grease, affixing free latches, check the wear parts and change the hole. Routine support of the venture and the Department of less, to the outer upkeep of the primary hardware. Routine support is done once by each move, and the administrator is in charge of the work, which is general and does not represent the generation of working hours.

DAILY MAINTENANCE ITEMS

An Examination Point	Serial Number	Check Parts	Inspection Method	Check Cycle (1time)
Clean	1	Machine around time to make a decent showing with regards to cleaning,there ought to be no water or iron amassing	Cleaning	Daily
	2	Workpieces,gauges,tools are put legitimately and kept clean	Cleaning	Daily
	3	Machine appearance,protective window with or without grease,dust	Cleaning	Daily
	4	Machine table,protective plate,iron tidy up clean	Cleaning	Daily
	5	Machine direct rails.screw and fringe press scrap clean, no rust, dim spots	Cleaning	Daily
	6	Shaft decrease opening interior clean	Cleaning	Daily
	7	The shaft motor wiring joint with or without water,protective hose for harm	Cleaning	Weekly
	8	Triple the tracheal joint work is normal,with or without leakage,triple bits of opportune drainage,external weight is to meet the occupation necessity	Cleaning	Daily
	9	Water tank with or without leakage,filter clean,pump work appropriately	Cleaning	Daily
	10	The chip iron is cleaned in time and the engine is running ordinarily	Cleaning	Daily
	11	Operators ought to entirely agree to safe working procedures,shoul not work sporadically
Lubricating	1	Machine primary oil put oil normal,clear oil, no impurities,oil tank work properly,filter clean	Cleaning/ Visual	Weekly
	2	Machine tubing,fittings,measuring instrument with or without oil,damaged blocked	Clean up	Weekly
	3	Machine apparatus guide,screw,lubrication full,uniform	Visua;	Daily
	4	Do you have oil in the chamber container?	Visual	Weekly
Fastener	1	Bearing and Nut	Visual (lock mark)	Weekly
	2	Free fitting fixing screw	Visual (lock mark)	Weekly
	3	Organ securing screws	Visual (lock mark)	Weekly

  Level maintenance table

It is more extensive than the every day support of a wide, profound, requesting The primary substance are: as per the utilization of hardware, a few sections of the devastation, cleaning; gear with a portion of the crevice to alter; clear the surface of the gear oil, check, change the oil circuit to guarantee smooth and no spillage; Devices and power gear to guarantee its dependability. Spotless and safe; clean the cooling gadget and frill.

Five star support is for the most part in full-time upkeep staff direction, with the administrator by the support cycle as indicated by plan to finish.

FIRST MAINTENANCE TABLE

An Examination Point	Serial Number	Check Parts	Inspection method/Requirement	Check Cycle (1 time)
Cleaning and Lubrication	1	Machine Electrical Cabinet,exhaust filter	Check the electrical cabinet wiring firmly,clean the filter	Three months
	2	Main motor cooling fan	cleaning	Three months
	3	Water tank,water pump	Cleaning tank,water tank filter,pump cleaning	Three months
	4	Oil pot,oil filter	With the oil,cleaning the oil filter	Three months
	5	Tubing,tubing fittings	Check the oil flows is smooth,with or without plugging, oil spills,to clean the oil	Three months
	6	Rails, screw and peripheral iron	Remove the telescopic shield,the internal iron,water strains to clean up	A months
	7	Guide rails	Remove the telescopic shield the rail ,screw lubrication to check, add lubricating oil	Three months
Check the Fasterner/Adjust the clearance	1	Pre-drawn nuts	Adjust the whole round nut according to the running status of the machine	Three months
	2	Loose plug tightening screw	Adjust the stopper gap according to the running status of the machine	Three months
	3	Gland fastening screw	Adjust the plug glan according to the running status of the macine	Three months
	4	spindle	Adjust the spindle timing belt tighteness	Three months
	5	Playing the cutter spindle	Adjust the amount of cutter
	6	Machine level	Check the machine level and adjust it	Six months

SECONDARY MAINTENANCE
The principle substance are: as per the utilization of gear, the hardware some portion of the deterioration of the investigation and cleaning; repair or substitution of wearing parts; on the transmission box, water powered oil (fluid) box, cooler tank wash oil (or fluid), Oil meet the necessities and to guarantee ordinary oil, cooling; review, change, repair and revision level; upkeep of electrical boxes, engines, restored lines.  

Secondary maintenance is a regular, planned activities, arranged exercises, for the most part to proficient support faculty, administrators to take an interest in the cooperate to finish

 

 Maintenance Requirements

• Routine maintenance
• hardware clients to utilize the working permit, in strict understanding with the working systems to work the utilization of gear.
• Before utilizing the hardware , ought to be checked, oil; utilize the procedure whenever to focus on the operation, irregular and opportune downtime check, expel the concealed threat; before get off work to clean, wipe and oil, do the move record.
  
• The sliding rails and joints, no oil, rust, no clean and trimming, no hair knocks
• The transmission framework is typical, the speed is finished, the control framework is adaptable and solid.
• grease device is finished, oil stream, oil standard eye-getting, the oil opening regularly keep perfect, typical oil.
• safety protection device is complete, reliable, clean inside and outside; control system clean, reliable connection, work properly, well grounded.
• parts finish without deformities, frill finish, perfect, protected and appropriate.

• work around the machine to clean, tidy, no dirt on the ground, no garbage and other debris.

Main Parts Maintenance 

• ball screw use and maintenance instructions

1. Ball screw for the development of parts, must guarantee that grease is adequate to evade loss of oil dry grinding harm ball screw, machine with expansive stream cooling, focus on increment the ball screw oil recurrence and stream, to maintain a strategic distance from screw rust
2. Ball screw to keep away from chip, tidy, debasements and different particles into the screw bad habit work region, bringing about screw harm.
3. Entirely keep the crash, bringing about ball screw nut return dislodging harm and influence the precision, bringing about commotion.
4. Do not allow the nut to cross the stroke limit

• motor maintenance instruction

1. the main motor (variable frequency motor or two-speed motor) and drive motor (stepper motor or servo motor), should pay attention to moisture, if the motor water will cause the motor phase short circuit, burn the motor; servo motor should prevent the collision, Causing damage to the servo motor encoder.
2. With the servo motor or frequency control, according to the servo drive or inverter alarm information (alarm number), to find out the cause of the alarm and the elimination of the alarm method
3. When utilizing the inverter, kill the AC control supply, the AC engine driver computerized administrator pointer light is not stifled before the AC engine driver is still high weight inside, don't touch the inward circuit and parts, ought to be in power following 5 minutes To work.
4. Machine instruments ought not be utilized as a part of the long haul when the aggregate power supply, in any event once every month to guarantee persistent operation of the machine 2 to 3 hours.
   
   
   
   

• spindle maintenance instructions

1. the spindle spindle and casing temperature contrast is too substantial, easily lead to spindle bearings burned. Oil cooler temperature settings must be set in accordance with the winter summer temperature. 
2. the spindle spindle and casing temperature difference is too large, easily lead to spindle bearings burned.Oil cooler temperature settings must be set as per the winter summer temperature.
3. the spindle running speed is recommended to maintain the normal operation of the speed (spindle maximum speed of 85%) processing.
4. the spindle in the normal operating speed , the continuous operation time shall not exceed 8 hours, the spindle running every eight hours, the need for spindle down to low speed operation 1 hour .
5. the spindle outer ring blowing, the pressure standard set at 1.2 kg per square centimeter - 1.5 kg per square centimeter.
6. the spindle is not installed Cutter / loading handle when the air gun with iron scraps should be more careful, can not make iron powder / water into the spindle cone hole, easily lead to poor spindle accuracy or even damage. 
    

NoteDo not modify the spinlde external ring blower switch yourself, else it will bring about the shaft to enter the water or the event of disappointment ought not happen.

Normal Operating Spindle table

Complete sets of spindle	Normal running spindle	Minimum speed
6000/rpm	5000/rpm	/
8000/rpm	6500/rpm	/
10000/rpm	8500/rpm	3000/rpm
12000/rpm	10000/rpm	5000/rpm
15000/rpm	12000/rpm	6000/rpm