The following is a detailed classification explanation of common faults and causes of automatic screw machines:

1、 Supply system malfunction

Screw jamming/poor feeding

Reason: The screw specifications do not match or there are burrs; The track is blocked by foreign objects; Improper adjustment of the feeding speed of the vibrating disc.

Abnormal blowing type feeding

Reason: Insufficient air pressure; Air leakage or blockage in the gas path; The blowing pipe does not match the size of the screw.

Screw suction failure

Reason: Insufficient vacuum adsorption force; Vacuum filter blockage; Extract positional deviation.

2、 Lock payment system malfunction

Screw slippage or floating lock

Reason: Improper torque setting of the electric screwdriver; Wear and tear of the batch head; The screw length does not match the product.

Leakage of lock or offset of lock position

Reason: The visual positioning system has errors; Program coordinate parameter error; Loose mechanical structure leads to inaccurate positioning.

The device keeps idling without stopping

Reason: Abnormal feeding (such as track blockage); The voltage of the electric batch is unstable; Program logic error or unreasonable sensing threshold setting.

3、 Mechanical and transmission failures

Abnormal noise or vibration

Reason: Bearing/screw wear; The belt is too tight or loose; Mechanical components lack lubrication.

The screw machine is stuck and not moving

Reason: Deformation of the track causes obstruction of screw sliding; The vibration motor is stuck by a fallen screw; The tail of the track is blocked by a large screw.

4、 Electrical control faults

The device cannot start

Reason: Loose power connector; The fuse is blown; The air switch is not turned on.

Program running abnormally

Reason: Controller program logic error; Abnormal servo motor control signal; Sensor misjudgment (such as zero drift)

5、 Sensor and accuracy failure

Pressure sensor failure

Reason: Damaged sealing ring causing air leakage; Interface blockage; Unstable power supply voltage or incorrect wiring.

Decreased positioning accuracy

Reason: Visual system lens not calibrated; Light conditions affect recognition; Sensor position offset.

Daily maintenance suggestions

Daily: Clean track debris, check screw quality, and avoid impurities from entering.

Weekly: Lubricate the guide rail/screw and test the torque accuracy of the electric batch.

Monthly: Calibrate sensors, backup controller programs, and replace worn batch heads.

By targeted investigation of the above reasons and regular maintenance, the failure rate can be significantly reduced. If encountering complex problems (such as program or servo system failures), it is recommended to contact professional technical personnel for handling. ?