초록 ▼

An apparatus for controlling the motion of machine tool components about or along respective axes comprises a plurality of structurally identical processors each capable of controlling one complex motion or a plurality of simple motions. Each processor receives desired position values from a numeric

An apparatus for controlling the motion of machine tool components about or along respective axes comprises a plurality of structurally identical processors each capable of controlling one complex motion or a plurality of simple motions. Each processor receives desired position values from a numerical control unit and has access to a first memory storing actual position values and a second memory storing desired rates of motion generated by the processors.

대표청구항 ▼

A control apparatus for a multi-axis machine tool having a plurality of movable components each shiftable by a respective linear drive along a respective translation axis or rotatable by a respective rotary drive about a respective rotation axis, said control apparatus comprising: numerical control

A control apparatus for a multi-axis machine tool having a plurality of movable components each shiftable by a respective linear drive along a respective translation axis or rotatable by a respective rotary drive about a respective rotation axis, said control apparatus comprising: numerical control means for supplying, in accordance with predetermined parts programs, electrically encoded reference positions for the movable components along the translation axes and about the rotation axes; memory means, including a plurality of transfer memories operatively connected to said numerical control means, for receiving therefrom and temporarily memorizing said electrically encoded reference positions; pick-up means for sensing actual positions of the movable components along the translation axes and about the rotation axes and for generating electrical signals encoding the sensed actual positions; storage means operatively connected to said pick-up means for receiving therefrom and temporarily storing said electrical signals; position control means operatively connectable to said numerical control means via said memory means and to said storage means for generating, in response to said reference positions received from said numerical control means via said memory means, in response to the actual positions encoded in said electrical signals and in accordance with predetermined motion parameters, control signals for modifying rates of linear motion of said components along said translation axes and rates of rotation of said components about said rotation axes, said position control means including a plurality of substantially similar processors, said transfer memories being equal in number to said processors and operatively connected to respective ones thereof; and coupling means for operatively connecting to said numerical control means and to said storage means a variable number of said processors equal at most to the total number of said translation axes and said rotation axes and for enabling detection by said numerical control means of the number of processors connected by said coupling means and for further enabling communication, to each one of the connected processors by said numerical control means, of the identity of each of said components and said axes to be controlled by said one of the connected processors, said storage means being accessible in its entirety by each of the connected processors.