How to restore the static balance of diamond grinding wheel

The static balance of the grinding wheel can be operated as follows:

1. Put the grinding wheel on the balance frame and turn the grinding wheel. When the grinding wheel is unbalanced, it will stop at the heavy place, and the heaviest part of the grinding wheel is at the bottom. At this time, make a mark on the flange with a pen that can be used as a marker.

2. Install a balance block at the position marked by the marker, turn the screw counterclockwise, and gently clamp the balance block in the groove of the flange.

3. Rotate the grinding wheel by 180 degrees, install a balance block on the left and right positions 120 degrees away from the marker pen, rotate the screw counterclockwise, and gently clamp the balance block in the groove of the flange.

4. Rotate the grinding wheel 90 degrees so that the marked marker note number is in a horizontal position, and then release your hand. When rotating clockwise, move the B and C balance weights by the same angle in the relative direction according to the method shown in the figure; when rotating counterclockwise, move the B and C balance weights in the opposite direction by the same angle according to the diagram method to adjust until the hand leaves the grinding wheel and stays still. .

5. Repeat the 4 operations to balance the grinding wheel, and tighten the three screws of the balance weight after balancing.

6. The grinding wheel completes the static balance. Remove the grinding wheel from the balance frame and it can work normally.

Extended information

Principle of grinding wheel balance bracket:

The grinding wheel balance bracket uses high-quality materials as the balance shaft. After heat treatment and precise processing and assembly, it has high precision and stable performance. It is an ideal machine tool accessory. Generally, grinding wheels with a diameter greater than 125mm must be balanced so that the center of gravity of the grinding wheel coincides with the axis of rotation.

The unbalanced grinding wheel will vibrate when rotating at high speed, which will affect the processing quality and accuracy of the machine tool. In severe cases, it will also cause machine tool damage and grinding wheel chipping. The main cause of imbalance is the uneven density of each part of the grinding wheel and asymmetrical geometry. And installation eccentricity and so on.

Therefore, balance must be performed before installing the grinding wheel. The balance of the grinding wheel has two types: static balance and dynamic balance. Under normal circumstances, only static balance is required, but dynamic balance must be performed during high-speed grinding (speed greater than 50m/s) and high-speed grinding.

When balancing, install the grinding wheel on the balance mandrel, and then place the mounted grinding wheel on the balance guide (or bearing-type mandrel) of the grinding wheel balance bracket. The grinding wheel will swing back and forth until the swing stops. The balanced grinding wheel can stand still at any position. If the grinding wheel is not balanced, its heavier part always goes down. At this time, the position of the balance weight can be moved to achieve balance.