Common troubleshooting methods for double disc grinding machine

double disc grinding machine in the use of the process may appear a variety of faults, affecting the processing efficiency and product quality. Here is a list of some common failures and their elimination methods to help operators quickly solve the problem and restore the normal operation of the equipment.

First, the decline in machining accuracy

The decline in machining accuracy is one of the most common faults of the double disc grinder, mainly manifested in the parallelism of the workpiece, flatness, dimensional accuracy does not meet the requirements. There are many reasons for this problem, such as grinding wheel wear, spindle bearing clearance is too large, guide rail wear, unstable hydraulic system pressure. Elimination methods include: check the grinding wheel wear, timely repair or replacement of the grinding wheel; adjust the spindle bearing clearance to ensure that the spindle rotational accuracy; check the wear of the guideway, if necessary, repair or replacement; check the hydraulic system pressure, adjusted to the specified value.

Second, poor surface roughness of the workpiece

Poor surface roughness of the workpiece will affect the appearance of the product and the use of performance. The cause of this problem may be improper selection of grinding wheel particle size, poor grinding wheel dressing, inadequate or inappropriate concentration of coolant, feeding speed is too fast. Elimination methods include: according to the workpiece material and processing requirements to select the appropriate grinding wheel particle size; regular dressing grinding wheel, to maintain the sharpness of the grinding wheel; check the flow and concentration of the coolant to ensure adequate cooling and lubrication; adjust the feed rate, to avoid too fast resulting in surface roughness.

Third, grinding wheel vibration

grinding wheel vibration will affect the processing accuracy and surface quality, and in serious cases will even lead to grinding wheel rupture, resulting in safety accidents. The causes of grinding wheel vibration may be grinding wheel imbalance, spindle bearing damage, grinding wheel flange loosening and so on. Elimination methods include: dynamic balance correction of the grinding wheel; check the spindle bearings, if necessary, replace the bearings; check the grinding wheel flange to ensure that the installation is firm.

Fourth, the hydraulic system failure

Hydraulic system failure will lead to equipment can not work properly, such as the table can not be moved, the grinding wheel frame can not lift and so on. Causes of hydraulic system failure may be hydraulic oil contamination, hydraulic pump damage, hydraulic valve stagnation. Elimination methods include: replacement of hydraulic oil, cleaning the hydraulic system; check the hydraulic pump, if necessary, replace the hydraulic pump; check the hydraulic valve, cleaning or replacement of hydraulic valves.

Fifth, electrical system failure

electrical system failure will lead to equipment can not start or unstable operation. Causes of electrical system failure may be poor line contact, component damage, control system failure. Troubleshooting methods include: checking line connections to ensure good contact; checking electrical components and replacing them if necessary; and checking the control system to eliminate faults.

Sixth, other faults

In addition to the common faults mentioned above, other faults may occur in the double disc grinder, such as coolant leakage, noise abnormalities and so on. The operator should analyse the situation according to the specific circumstances, find out the cause of the malfunction and remove it.

Troubleshooting Precautions

The operator should be familiar with the structure of the equipment and the electrical principle, and have a certain degree of fault diagnosis and troubleshooting ability.

* Before troubleshooting, the power supply should be cut off to ensure safety.

* Use appropriate tools and instruments for fault diagnosis and elimination.

* For troubles that cannot be eliminated, professional maintenance personnel should be contacted in a timely manner.

Summary

The troubleshooting of common faults of Double disc grinding machine requires the operator to have certain professional knowledge and skills. Through regular maintenance, correct operation of the equipment and timely troubleshooting, you can effectively extend the service life of the equipment and improve processing efficiency and product quality.