How to analyze and troubleshoot manual servo presses?
When a manual servo press fails, the problem can be solved by observing the failure phenomenon, analyzing the possible causes, and adopting corresponding troubleshooting methods. The following are some common fault analysis and troubleshooting methods:
First, the pressure is abnormal
1, insufficient pressure
Cause analysis: hydraulic system failure, such as oil pump wear, hydraulic oil leakage or insufficient oil; pressure regulator valve is not set properly; servo motor failure, can not provide sufficient power.
Elimination methods: check the working condition of the oil pump, such as wear and tear need to be replaced; find and repair hydraulic oil leaks, replenishment of oil; re-adjustment of the pressure regulating valve; check the servo motor and its control system, repair or replacement of faulty parts.
2, pressure instability
Cause analysis: pressure sensor failure; air in the hydraulic system; electrical control system interference; mechanical transmission parts wear.
Elimination methods: calibrate or replace the pressure sensor; exhaust operation of the hydraulic system; check the grounding and shielding of the electrical system to eliminate sources of interference; check and replace worn mechanical transmission components.
Second, the slider movement abnormality
1、Slider jamming
Cause analysis: poor guide rail lubrication; slider and guide rail clearance is too small or there are foreign objects stuck; transmission components failure, such as screw nut vice wear.
Elimination methods: strengthen the guide rail lubrication, clean up the guide rail surface and the slider; adjust the gap between the slider and the guide rail, clear away foreign objects; check and replace the worn transmission components.
2、Slider speed abnormality
Reason analysis: servo motor parameters are set incorrectly; speed control signal is abnormal; mechanical transmission parts are obstructed.
Elimination methods: reset servo motor parameters; check the speed control signal line and the relevant controller, repair or replace the faulty parts; check the mechanical transmission components, clear away the obstruction or replace the damaged parts.
Third, the electrical system failure
1, the motor does not turn
Cause analysis: power supply failure; motor winding short-circuit or disconnection; controller failure.
Troubleshooting methods: check the power supply, repair or replace the damaged power supply components; test the motor winding, repair or replace the motor; check the controller, repair or replacement; check the protection devices, such as emergency stop button, limit switches, etc., to lift the trigger state and repair the fault.
2、Control system alarm
Cause analysis: sensor failure; program error; damaged electrical components.
Elimination methods: check the connection and working status of the sensor, replace the faulty sensor; check the control system program, if there is an error to correct or re-download; check the electrical components, such as relays, contactors, etc., replace the damaged components.
Fourth, mold installation and debugging problems
1, mold installation difficulties
Reason analysis: the mold size does not match the press; the installation surface is not flat or there are debris; positioning device is damaged.
Elimination methods: check the mold size, to ensure that the press with the appropriate; clean up the installation surface to ensure that no debris flat; repair or replace the positioning device.
2、Commissioning pressure uneven
Reason analysis: mold installation is not level; press table surface is not flat; mold structure design is unreasonable.
Elimination methods: re-adjust the mold installation level; check and repair the press working table; analysis of the mold structure, make the necessary improvements or adjustments.
When analyzing and troubleshooting the faults, the maintenance personnel should have certain professional knowledge and skills, and operate in strict accordance with the operating procedures. For complex faults, if you can not solve them by yourself, you should contact professional technicians or equipment suppliers for maintenance.
※ If you still can not solve the equipment failure through the above ways and means, please contact the technical specialists of Xinhui Electromechanical Equipment Co.
