JPS5914009A - Nc program forming system - Google Patents

Abstract

PURPOSE:To incorporate easily a pattern play back function into a numerical control (NC) program by specifying and inputting a variable to be used in subprogram. CONSTITUTION:A mechanical moving part is positioned at a required position by manual operation. Depression of a key on a manual data input device MDI after completion of said positioning to the required position enables a central processing unit CPU to form NC data by using a current position stored in reversible counters RCX, RCY and store the formed NC data in a part program memory PPM. Thereafter, the NC data are formed in the same manner and stored in the part program memory PPM. After positioning the mechanical moving part on the prescribed position, forming the NC data on the position by said operation and then storing the NC data in the part program memory PPM, an instruction having the pattern play back function is formed.

Description

[Detailed description of the invention] The present invention relates to an NC program creation method.

Set the NC device to playback mode, move the mechanical movable part to a desired position by manual operation, and use an address word (an alphabet character that specifies the character of the numerical value following the word) to specify each axis at that position. , Yt or 2, then press the lN5RT key (insert key) to display the current position of the mechanical moving part (Px, P).
r, Pz) using NC data XPx, YF3. Create ZPz i and use it as an NC program (Bert program)
Store it in the storage area, repeat the same operation, and store multiple N
An NC program creation method for creating an NC program consisting of C data is already known.

This method is convenient because it does not require programming. However, conventional NC data created by this playback method was mainly position command data.

Incidentally, recently, the mainstream method has been to create an NC program using a user macro function or the like. Here, a user macro is one in which a certain function consisting of a certain group of instructions is registered in memory in advance like a subprogram, the registered function is represented by one instruction, and only that representative instruction is This function is executed by inserting this into the NC program. And, the biggest feature of this user macro is that you can use variables in the user macro (
This point differs from subprograms in that it is possible to perform calculations between variables and to set actual values to variables.

FIG. 1 is an explanatory diagram of the relationship between a normal NC program and a user macro, where 1 is a normal NC program and 2 is a user macro.

User macro instructions, G65, are placed in appropriate places in the NC program.
P day day b ■... JΔΔ...Δ KOO...
・O; is inserted, and the user macro with the macro identifier 2口口...mouth has K point positions p, , at equal intervals ■ on the straight line of angle J, as shown in Figure 2. p.

...A command to create a bolt hole is programmed into Pk. Note that an instruction M99; indicating a return to the NC program is inserted at the end of the user macro.

Therefore, in the process of processing based on the NC program, if the user macro command G65P 口口...口■...J...,K...; is read, the \NO device is the macro identifier 2-mouth mouth... Read the user macro corresponding to the mouth, ■-..., J=△△...Δ, ni=O
The bolt hole shown in FIG. 2 is machined as O...○, and after the process, the NC process is performed again using NC program 1 using M99;.

In this way, by storing a large number of user macros in memory, and inputting the user macro instruction G65 for calling the user macro, the macro name, and the value specifying the variable in the NC program, a predetermined number of turns can be executed. It is possible to perform NO processing, etc. in accordance with the above.

Such a user macro function allows the machine tool to perform a user-specific operation, and is effective because it simplifies programming.

Now, since the conventional NO data creation method using playback was only applicable to position command data as mentioned above,
It was not possible to incorporate into the NC program the pattern brain search function using subprograms and user macros, which are currently the mainstream.

In light of the above, an object of the present invention is to provide an NC program creation method that can easily incorporate a turn playback function into an NC program.

FIG. 3 is a block diagram of an embodiment of the present invention.

When the mode changeover switch on the operation panel OPN is set to the brain check mode, the processing unit CPU thereafter executes the NO data creation process.

Next, press the jog feed buttons PJX, NJX in the +X direction, -X direction, +Y direction, and -Y direction on the operation panel OPN.

If you press P JY and NJY respectively, the corresponding AND gates PGX, NGX, PGY, NGY
is opened, and the pulse P generated from the pulse generator PGC
s is 10X manual pulse PX, -X manual pulse NX, +
Y hand 11b) (Rus PY1-Y becomes manual pulse NY and synthesizes circuit cpx.

Applied to CPY. The synthesis circuit CPX synthesizes PX and NX and applies it to the X-axis servo unit hXSU, and the synthesis circuit CPYii: PY, NY synthesizes and applies it to the Y-axis servo unit YSU. As a result, the X-axis and Y-axis servo units XSU and YOU each have an X-axis motor XM.

Drive Y-axis motor YM. If the X-axis motor XM and Y-axis motor YM rotate by a predetermined amount) (Lucorder PCX.

One feedback pulse PFX, PFY from PCY
is generated, and the feedback pulses PFX, PFY
are fed back to the X-axis servo unit (XSU) and Y-axis servo unit YSH, respectively, and each servo unit drives and controls the motor so that the difference between the input pulse and the feedback pulse becomes zero.

In parallel with the above operation, the addition terminal of 10X manual counter (PX is a reversible counter (X-axis current position counter) RCX,
-X manual pulse NX goes to the subtraction terminal of the reversible counter RCX, +Y manual pulse PY goes to the addition terminal of reversible color (Y-axis current position counter) RCY, -y hand m pulse NY goes to the subtraction terminal of the reversible counter RCY applied to each terminal.

The reversible color/RCX counts up the contents every time 10X manual pulse PX occurs, and also counts up the contents every time 10X manual pulse PX occurs.
Every time X occurs, the contents are counted down and the current position on the X axis is stored. Further, the reversible counter RCY counts up the contents every time the +Y manual pulse PY occurs, and counts down the contents every time the -Y manual pulse NY occurs, and stores the current position on the Y axis.

Now, by manual operation, move the mechanical movable part to the desired position P1 (
XI l )'+'.

After completing the positioning to the desired position t Pl (XI + 3'I), press the keys on the manual data input device MDI in the following order: XX key, N5RT key, Y key, IN5RT key,
: If the key is pressed, the processing unit CPU will start the reversible counter RC.
X, the current position stored in RCy (Xi 1
)'t) to create the following NC data and store it in the part program memory PPM.

Thereafter, NC data is created in the same way and stored in the part program. Then, the mechanical movable part is positioned at a predetermined position, NC data at the position is created by the above-described operation, and after storing it in the part program memory PPM, an instruction having a pattern playback function is created. Now, for example, if the line tetragonal pattern shown in FIG.
O○...O+ (1) Just input the user macro call command G65, user macro identification name P1 spacing, angle J, and number of holes K to create the NC data of the 7-angle (actually # 1 (NC data shown in 11) is stored in the part program memory PPM.The patterns created by the user macro are not limited to those shown in FIG. In the case of Figure 4, Q65 p... R... J... K...;
In this way, user macro calling command G65, user macro identification name P..., radius R1 angle J1 number of holes K may be input.

Thereafter, a predetermined part program is created by the same operation and stored in the part program memory PPM.

After completing the heart program creation, select the automatic operation mode with the mode changeover switch on the operation panel OPN, and press the cycle start button.The processing unit CPU will call out one command at a time from the part program memory PPM and execute numerical control processing. . If it is position command data, incremental values ΔX and ΔY are calculated and input to the pulse distributor PDC. The pulse distributor PDC executes pulse distribution calculation based on ΔX and ΔY, inputs the distribution pulses xp and yp to the X-axis servo unit XSU and Y-axis servo unit YSH, and inputs the distribution pulses (The supply lines to the unit are omitted) and motors MX and MY are rotated to move mechanical movable parts such as tools and tables.

Then, when the user macro instruction is read from the part program memory PPM, the user macro specified by the user macro identification name is read from the user macro memory UMM, and variables 1. Replace J and K with the values specified in the part program, and perform NC processing according to the pattern shown in Figure i@2.

As described above, according to the present invention, it is possible to provide a method for creating an NC program that can easily incorporate a pattern playback function into the NC program.

[Brief explanation of the drawing]

Figure 1 is a relationship diagram between a normal NO program and a user macro, Figure 2 is a pattern diagram executed by a user macro, Figure 3 is a block diagram of an embodiment of the present invention, and Figure 4 is a user macro diagram. It is another pattern diagram by. PJX, NJX, PJY, NJY...+
Jig feed button in X direction, -X direction, Y direction, -Y direction, PGC...Pulse generator, XE'11, Y control
...X-axis motor, Y-axis motor, Rcx, RCY-
M reverse cow 741, OPN...operation panel, MDI...manual data input device, CPU...processing device, PPM...part program memory, UM...user macro memory, PDC... Pulse distributor patent applicant: FANUC Co., Ltd. Patent attorney: Mangai Tsuji (1 person)

Claims (1)

[Claims] The current position of the mechanical movable part is memorized, the mechanical movable part is moved to a desired position, and then the current position of the mechanical movable part is used to create NC data. In an NC program creation method for creating an NC program including NC data, a large number of subprograms created using variables are stored in memory in advance, the name of a predetermined subprogram is input, and the name of the subprogram is An NC program creation method characterized in that the NC program includes NC data for controlling a mechanical movable part based on the subprogram and specific values by specifying and inputting variables used.