数控原理（Numerical control principle）.docVIP

数控原理（Numerical control principle） 1. Selection (2 points per question, 20 points) 1. The following non-rotating detection devices are (A). (A) the magnetic gate (B) speed generator (C) rotating transformer (D) photoelectric encoder 2. FMS system refers to (C). (A) adaptive control (B) computer group control (C) flexible manufacturing system (D) computer numerical control system 3. All kinds of CNC milling machines are not adopted (C) motor as spindle drive motor. (A) dc servo (B) ac servo (C) step (D) communication Processing (B) parts, suitable for nc processing equipment. A. Large quantities of small batch C of small batch C 5. The structure of ac servo motor controlled by nc machine is (D). A rotor and stator are equipped with permanent magnets and winding B rotor and stator are winding The C stator has a permanent magnet and the rotor is the winding D rotor is equipped with permanent magnet, stator is winding The (D) port of the numerical control system can be sent or received by the external computer connection. (A) sr-323 (B) rs-323 (C) sr-232 (D) rs-232 7. Closed-loop control CNC machine tool (D). (A) it is A CNC machine which is connected by A gearwheel between the servo motor and the transmission screw (B) the dc servo motor is adopted and the angular displacement measurement device is installed on the rotary axis (C) a feedback device with a stepping motor and a test position (D) the feedback device for measuring the displacement of the parts at the end of the machine tool by means of ac or dc motor 8. The abbreviation for the function key of the page function is (A). (A) ALARM (B) OFSET (C) RESET (D) GRAPH 9. The abbreviation for the function key of the display page is (A). (A) POS (B) PROGM (C) PARAM (D) PAGE Theoretically, the track of the CNC machine tool is (A). (A) line (B) arc (C) line (D) curve 2. Fill in the blanks (2 points, 20 points in total) 1. Process of tool radius compensation: establish tool compensation, make tool compensation, and cance