Zero returning control method based on industrial Ethernet bus technology
A bus technology and Ethernet technology, which is applied in the field of zero return control of CNC machine tools, can solve the problems of shortening the zero return execution time, slow speed, and low zero return precision, so as to enhance the anti-interference ability, improve the accuracy, and improve the zero return The effect of efficiency
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[0029] Example
[0030] like figure 1 Described, the zero return control method based on the industrial Ethernet bus technology of the present invention includes the following steps:
[0031] (1) Power on the numerical control device.
[0032] (2) Select the zero return direction and start the zero return mode. The user can choose the zero return direction according to the programming habits or the inertia of the machine tool.
[0033] (3) Judge whether the feed axis is in the zero return deceleration zone, if not, go to step (4); if so, go to step (6).
[0034] (4) Judge whether the current position of the feed axis is before the zero return deceleration zone, if so, go to step (5); Finally, stop, and trigger the hardware limit overtravel alarm of the direction of the numerical control device. The numerical control device makes a special judgment on this alarm signal to solve the problem of overshooting the limit switch due to the high speed and the short period of the li...
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