The Swiss type double spindle CNC latheThe machine has two spindles, the main spindle and the sub spindle, which can rotate simultaneously. This allows for the cutting off of the part and then the back spindle can grip the part to proceed with machining the end of it. Consequently, there is no need for a secondary machining process when dealing with parts that require both ends to be processed. The machine tool ensures high machining accuracy and efficiency, enabling the simultaneous processing of the part in a single operation.
I would like to present to you some typical issues and their corresponding remedies associated with a CNC double-spindle lathe machine. Please note, the content generated should be distinct from the previous text and should be formulated in a manner that showcases alternate ways of expression.
When the program is initiated, the stepper motor may fail to rotate due to issues with either the motor itself or its control system. It is crucial to check the connection plug of the stepper motor to ensure that it is firmly connected. If the plug is connected well and the motor still fails to run, it could be a sign of a faulty motor or a malfunctioning driver circuit. Replacing the faulty motor with a new one can serve as an effective troubleshooting method. However, if the motor still doesn't work after replacement, the control part of the system may be defective, and a closer examination of the high-power triode on the driver board and the protection component release diode is necessary since these components are prone to damage.
When the machining program is in operation, there might be occasions where the worktable suddenly stops running and the stepper motor fails to rotate. In such instances, it is important to consider both mechanical failures and control system defects as potential causes. So, it is recommended to return the worktable to the origin and restart the processing program. However, if the worktable consistently stops running at a specific position, it indicates possible damage, deformation, or obstruction in the transmission system.
To diagnose this issue, begin by powering off the control system and manually rotating the lead screw. Pay attention to any excessive resistance or complete inability to turn at certain points. Such resistance suggests a fault in that particular area. Check for potential causes such as tight clearance between the screw nut and the screw, overly snug slide inserts, foreign objects within the ball guide groove of the ball screw, bent or deformed screws, and looseness or obstruction in the flexible gear of the stepper motor reducer.
If no abnormalities are observed during manual cranking, the fault lies within the control system, and further investigation should be conducted based on the earlier troubleshooting steps.
When the program comes to an end, it's quite common for the tool to not be in its original position due to the excessive running resistance of the mechanical transmission system. Typically, the tool rest moves at a low speed, driven by low voltage during cutting feed. The running torque of the stepping motor is comparatively small and hence unable to conquer the resistance, leading to lost steps. However, when it comes to returning to zero, the stepper motor is driven by high voltage, running at a higher speed with a greater torque. As there's no intense resistance, the stepper motor functions normally without losing any steps. This forms the root cause of the problem where the machine goes astray while going and returns to normal on coming back. To avoid this issue, you can check for any iron filings or foreign objects present on the transmission gear in the stepper motor reducer or the transmission gear present between the stepper motor and the lead screw. Tight sliding plate inserts can also increase the running resistance, leading to this problem.