How to deal with abnormal speed of CNC machining center? What should be paid attention to in CNC machining tool radius compensation?

Solution one: CNC machining center spindle parameters have problems, it is best to initialize the spindle parameters, test the spindle speed, if it is good, then it should be a parameter problem, you can not restore the original parameters, check other parts have no problems, such as belt, encoder.

Solution two: it is likely that the gear is wrong, or the high and low signal is wrong. Can be in the monitoring inside to see how much the true speed of the motor, and then measure the true speed of the spindle, compared with the parameters of the tooth ratio, see if it is reasonable. If it is a serial spindle, this is unlikely to happen.

Given the spindle speed, add it from 50,100,150, all the way up to 1200 and see if there is a significant change in the speed, if the spindle does increase by 50, if it does, maybe it is a parameter problem.

There is in the CNC machining center for CNC machining, due to tool wear, regrinding or replacement of a new knife, the processing program of the tool parameters will change, the tool path will change, if not adjusted in time will affect the final machining accuracy of the workpiece.

The change of tool radius compensation generally occurs after a period of time. For continuous program segments, when the tool radius compensation varies, the vector at the end of a program segment is calculated with the tool compensation specified in the program segment.

When compiling CNC programs, we generally put the tool radius compensation in the compensation code input as a positive value, if the tool radius compensation is set as a negative value, in the case of the direction of the tool path unchanged, it is equivalent to the nc program compensation position instruction, G41 and G42 interchangeable, It is possible that the machining center originally processed the outside of the workpiece into the inside processing, unexpected problems, so the radius compensation input must pay attention to the setting of the two compensation directions.