Modern CNC machine tools have many causes of failure, and their failure characteristics and causes can be divided into systematic and random failures; diagnostic display and no diagnostic display failure; destructive and non-destructive failure; motion quality characteristic failure; hardware and software failure.

Due to the wide variety of CNC machine tools, the parts of the CNC machine tool failure can basically be:

1. The mechanical part is faulty. Such as feed drive chain failure, spindle component failure, ATP failure, accessory accessory failure, etc.

2. The electrical part of the machine body and the high-power control part are faulty. If the axis motion hardware is over-traveled, the tool magazine cannot find the tool fault, the spindle does not divide the fault, the tool and fixture clamp the fault, the various motors do not work, the lubrication device fails.

3. The feed servo system is faulty. Such as servo feed system error, detection error, overheat alarm, high current, high voltage, low voltage, overload, speed feedback disconnection, protection switch action alarm, machine tool out of control, vibration, overshoot noise, cylindricity fault Wait.

4. The spindle servo system is faulty. Such as spindle motor vibration, noise, large speed deviation or exceeding the rated value, motor overheating, excessive current, regenerative circuit fuse blow failure.

5. The CNC system is faulty. Such as CRT no brightness, no picture, NOTREADY display, PROGRAMSTOP display, MDI is invalid, HOME is not normal, electric hand wheel failure failure.

At present, the startup, online and offline diagnostic technologies of the CNC system have made great progress, which is of great help to fault diagnosis and positioning. However, when the CNC machine tool fails, it must be quickly and correctly excluded, often involving many aspects. This requires the maintenance personnel to have a comprehensive theoretical knowledge, practical skills and other high professional qualities, fully understand the investigation of the fault scene, list the many factors that may cause the failure, and use the necessary measurement techniques to gradually find out the cause of the failure.

(Finish)

Series Steel Structure Industrial Cooling Tower

Tower structure: all steel structure, tower skeleton, cloth water system, climbing ladders, guardrails are Q235-B material, anti-corrosion using hot-dip galvanizing, surround panel for glass Glass steel.

Windpipe: kinetic energy recovery type, air flow organization is reasonable, high efficiency;
Fan: Wing-type adjustable cooling tower dedicated shaft fan, blades are aluminum alloy or glass steel.Motors,

gearboxes: YE2 series outdoor energy-efficient energy-saving motors, protection class IP55, insulation class F-class.


Filler: modified PVC raw material thin belly filler, high temperature, aging, flame retardant, bonding into a block strength.

Water receiver: the use of high-efficiency low-resistance rib arc water receiver, modified PVC material pull squeeze molding, water collection effect is significant, the drift rate is less than 0.01%.

The fan system tower is equipped with motors, gearboxes, fan access platforms and passageways, and there are climbing ladders and guardrails outside the tower.

Pool: This tower's pool and foundation, pre-buried steel plate, etc. by the user is responsible for, the water level should be controlled at -0.25-0.3m as well.

Applied to petroleum, chemical, metallurgy, medicine, electricity and other industrial large water circulation system.

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Wuxi Ark Fluid Science Technology Co., Ltd. , https://www.fangzhouarkfluid.com