Numerical controller capable of executing G-code commands in path table operation

• US 20080234857A1
• Filed: 03/17/2008
• Published: 09/25/2008
• Est. Priority Date: 03/20/2007
• Status: Abandoned Application

• Current Assignee: Fanuc Ltd (Fanuc Corporation)
• Original Assignee: Fanuc Ltd (Fanuc Corporation)
• Inventors: Endo, Takahiko, Watanabe, Tooru
• Application Number:
  US12/076,328
• Publication Number:
  US 20080234857A1
• Time in Patent Office: Days
• US Class Current: 700/186
• CPC Class Codes: G05B 19/408 characterised by data handling or data format, e.g. reading, buffering or conversion of data
• CPC Class Codes: G05B 2219/35252 Function, machine codes G, M
• CPC Class Codes: G05B 2219/36245 Use of tables to store order of execution of functions
• CPC Class Codes: G05B 2219/36507 Select program or execute command, control instructions as function of axis position

Abstract

A numerical controller capable of using G-code commands pursuant to ISO in a path table operation. Data of values L of a reference variable and positions of a controlled axis X on i th and (i 1) th lines are read from a path table and stored. Based on the i th and (i 1) th line data and an inputted value Lm of the reference variable, a motion path is obtained to output motion amounts of the controlled axis. Thereafter, an index i is updated, and the path table operation is performed in accordance with data in the path table and the inputted reference variable value. If a G-code is included in the read data during the path table operation, it is stored. When the reference variable value Lm reaches a reference variable value designated by a line in which the G-code is read, a command for the G-code is executed.

Claims

1. A numerical controller for performing a path table operation in which a position of a controlled axis is controlled in synchronism with an input value of time or a spindle position as a reference variable, in accordance with a path table that stores commands of positions of the controlled axis respective for set values of the reference variable, said path table including G-code commands pursuant to ISO to be executed respectively at set values of the reference variable, said numerical controller comprising:

reading means that successively reads the commands respective for the set values of the reference variable from the path table;

determining means that determines whether or not the command read from the path table includes one of the G-code commands; and

executing means that executes the read G-code command when the input value of the reference variable reaches the set value of the reference variable at which the read G-code command is to be executed.

2. A numerical controller for performing a path table operation in which a position of a controlled axis is controlled in synchronism with an input value of time or a spindle position as a reference variable, in accordance with a path table that stores commands of positions of the controlled axis respective for set values of the reference variable, said path table including a command of calling a G-code program pursuant to ISO to be executed at a set value of the reference variable, said numerical controller comprising:

reading means that successively reads the commands respective for the set values of the reference variable from the path table;

determining means that determines whether or not the command read from the path table includes the command of calling the G-code program; and

means that calls and starts executing the G-code program when the input value of the reference variable reaches the set value of the reference variable at which the read command of calling the G-code program is to be executed.