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Dicing saw spindle failure analysis and repair method

From: Issued date 2019.09.02 Back

Spindle lock - the main reason is that the air circuit is not clean and the filtering effect is not good, especially the blockage caused by oil and impurities.

Repair method: First, replace the filter element; second, open the spindle to re-grind the bearing bore and end face, and then clean it thoroughly with aviation gasoline. General users are not qualified for this operation, which should be carried out by a professional factory.

Excessive vibration - the main reason is that the dynamic balance of spindle is not good (including the cutter head), or the dynamic balance of grinding wheel is not good.

Repair method: The spindle can be rebalanced to meet the requirement of dynamic balance. General users are not qualified for this operation. It should be repaired by a professional factory. Or replace with qualified grinding wheel.

Excessive jump - the main reason is the poor machining accuracy of the cutter head or spindle.

Solution: Replace the cutter head or spindle.

Excessive temperature rise - the first reason is that the spindle is not well cooled.

Solution: Check if the pressure, temperature and volume of the cooling water are normal. 

The second reason is that the motor is overloaded and heated because the spindle power is too small.

Solution: Reduce the processing range, or replace with a spindle of high power.

Excessive current - one reason is overload and the other is poor quality of motor.

Solution: Repair or replace the spindle.

Excessive noise - mainly airflow noise.

Solution: Repair or replace the spindle.

Excessive gas consumption - mainly because the gas path of the spindle is not well sealed or the shafting mating clearance is too big.

Solution: Repair or replace the spindle.

Excessive thermal expansion and contraction of spindle parts - the phenomenon is that the axial displacement of the spindle blade is large due to turning on and off the cooling water. The main reason is that the internal cooling effect of the spindle is not good, or the internal cooling structure of the spindle is not advanced, resulting in poor cooling effect.

Solution: Repair or replace the spindle.

Shenyang Heyan Precision Equipment Co., Ltd. is specialized in the research and development, sales, consulting and service of dicing equipment and accessories, including wafer cutting, special material cutting, etc. Relying on advanced product technology and rich industry experience, Heyan have been providing customers with reasonable, practical and efficient product solutions. With professional after-sales service system, Heyan have been providing technical support for customers to solve the dicing process problems. Service hotline: 024 -31238383 15942340301

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