NUMERICAL CONTROL DEVICE FOR PERFORMING CONTROL AXIS SWITCH

摘要

In a numerical control device for performing a control axis switch, each of a plurality of control axis units includes an axis movement amount conversion unit configured to convert a movement amount of a servo motor into a movement amount corresponding to each of the control axis units of the plurality of control axis units, an axis position data storage unit, and a control object axis position data storage unit configured to store an axis position of a control object at a time when the control object is separated from a single drive unit, and an axis position stored in the axis position data storage unit is configured to be updated by using the movement amount of the servo motor, regardless of whether or not the control object is connected by a control axis switch unit to the control axis unit.

主权项

1. A numerical control device for performing a control axis switch, comprising:
a plurality of control axis units configured to respectively control a plurality of control objects; and a control axis switch unit configured to transmit position commands of the plurality of control axis units to a single drive unit, and the control axis switch unit is configured to transmit the position commands of the plurality of control axis units to the single drive unit so as to allow the plurality of control objects to be controlled and driven by the single drive unit, wherein each of the plurality of control axis units comprising:
an axis movement amount conversion unit configured to convert a movement amount of a servo motor output from a position detection unit provided in the single drive unit into a movement amount corresponding to each of the control axis units of the plurality of control axis units,an axis position data storage unit configured to store the movement amount converted by the axis movement amount conversion unit as a position of the control object, anda control object axis position data storage unit configured to store an axis position of the control object at a time when the control object is separated from the single drive unit; and an axis position to be stored in the axis position data storage unit is configured to be updated by using the movement amount of the servo motor output from the position detection unit, regardless of whether or not the control object is connected by the control axis switch unit to the control axis unit, so as to allow the single drive unit to be connected to the control object at a specific position during the control axis switch.