一、Preparation before operation

1、Equipment inspection

Confirm that the power circuit is not damaged and the grinding/polishing disc is securely installed without looseness

Check if the cooling system and lubrication system are functioning properly, and if there is sufficient stock of grinding fluid/polishing agent

2、Environment and personal protection

The work area needs to be kept clean and ventilated, and ground obstacles should be removed

The operator must wear protective goggles, dust masks, and wear-resistant gloves, and tie up long hair

二、Standard operating procedures

Start the program

First, run at low speed (≤ 500rpm) without load for 1 minute to confirm that there is no abnormal vibration or noise

The workpiece needs to be fixed at the center of the fixture to avoid imbalance of the grinding disc caused by eccentric load

Processing parameter settings

Rough grinding stage: Use # 200- # 400 grit grinding discs with a pressure of 0.1-0.3MPa

Precision polishing stage: Replace the polyurethane polishing disc, reduce the pressure to 0.05-0.1MPa, and adjust the speed to 800-1200rpm

Process monitoring

Keep the workpiece in parallel contact with the grinding disc to avoid local overheating (cooling should be paused if the temperature is greater than 60 ℃)

Regularly replenish polishing solution (every 10 minutes) to prevent surface damage from dry grinding

三、Safety precautions

Operation taboos

It is strictly prohibited to adjust fixtures or come into contact with rotating parts while the equipment is in operation

It is prohibited to polish workpieces by hand, and specialized fixtures must be used

Emergency response

Sudden power outage: Immediately turn off the power switch to prevent restart current surge

Workpiece splashing: Quickly press the emergency stop button to check the integrity of the protective cover

Special material processing

Hard and brittle materials (such as silicon wafers): require stepped vacuum polishing to avoid edge breakage

Metal dust: equipped with local exhaust devices to prevent explosion risks

四、maintenance

Daily maintenance: Clean up residual abrasives on the grinding disc, check the tightness of the drive belt

Weekly maintenance: Add lubricating grease to the spindle bearings and verify the accuracy of the pressure gauge