Reasons and solutions for dimension instability caused by CNC lathe driver:
Cause Of Issue
- ①The signal sent by the driver is lost, causing the driver to lose synchronization
- ②Due to signal interference caused by the driver, it is out of sync
- ③ Improper parameter setting of the servo drive and unreasonable gain coefficient setting
- ④ The drive is in a high-temperature environment, and no good heat dissipation measures have been taken, resulting in unstable dimensions, and may also cause changes in the internal parameters of the drive, causing malfunctions
- ⑤ The drive current of the driver is not enough
- ⑥The driver torque is not enough or the motor torque is not enough
- ⑦ The driver is damaged
Solution:
- 1. First determine whether you are using a stepper drive or a servo drive: the stepper motor drive can determine whether there is a step out through the phase light or dial indicator. The servo drive can be judged by the pulse number display on the drive or playing a dial indicator
- 2. Ensure a good heat dissipation and ventilation environment, the appropriate temperature is an important factor to ensure processing performance
- 3. Refer to the DA98 manual to modify the gain parameters
- 4. Install shielded wire and anti-interference capacitor
- 5. Replace the drive or motor to make the torque meet the actual needs
- 6. Drive to factory for repair
- 7. If the drive current is not adjusted enough to meet the requirements, the driver needs to be replaced
CNC lathe machinery caused by unstable machining dimensions
Cause Of Issue
- ①The size of the processed workpiece is improperly clamped
- ②The water in the motor plug causes the insulation performance to drop and the motor to be damaged
- ③Whether the stepping motor damping sheet is too tight or too loose
- ④Workpiece appears ellipse
- ⑤ The reverse clearance of the screw is too large
- ⑥The mechanical screw is installed too tightly
Solution:
- 1. Adjust the damping disc so that the motor is in a non-resonant state
- 2. Check the runout of the spindle, repair the spindle, replace the bearing
- 3. Check whether the feed amount is too large or overload caused by too fast, check the workpiece clamping should not extend too long the chuck, to avoid letting the knife
- 4. Replace the motor plug for protection, or replace the motor
- 5. Check the reverse clearance of the screw by playing a dial indicator, whether the clearance has been filled in from the system, and whether the clearance is too large after filling in
- 6. Check whether the screw is crawling and whether there is a slow response
