JPS62138904A - Numerical controller - Google Patents

Abstract

PURPOSE:To send various instructions which are impossible with a mere M code to attached equipment by describing commands to the attached equipment on the same input medium with commands to a machine tool which are described in NC code. CONSTITUTION:A command decision part 9 for the attached equipment sends out a character string up to a symbol indicating the end of a character string, i.e. ')' to an RS232C interface part 10 as it is when detecting a character string '(#1<' in an NC command read in from an input part 3. The RS232C interface part 10 converts the character string into the signal of RS232C, which is outputted to the attached equipment 8. When there is not the character string '(#1<' in the NC command, the block is passed to an arithmetic control part 4 as usual and the machine tool is controlled.

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention relates to a numerical control device (hereinafter abbreviated as an NC device) that can control a machine tool and simultaneously give commands to a robot, index table, etc. be.

[Conventional technology]

The display section that displays the operation results of the channel (1), (3) is the NC
The command input section (4) is an arithmetic control section that receives and calculates the NC command from the input section (3) and outputs a control signal.
5) and (6) are drive units controlled by signals from the arithmetic control unit (4), and (7) is an M which is added to the arithmetic control unit (4) and is operated by signals from the arithmetic control unit (4). The code output section (8) is an accessory device driven by a signal output from a relay contact in the M code output section (7).

Next, the operation will be explained. In operations that require the intervention of the operator, the operator gives the necessary instructions to the operator panel (1) while determining the various information that can be displayed on the display (2). Here, for example, when an automatic operation using an NC tape is instructed, the input section (3) is a paper tape reader, and the NC command information input from there is appropriately calculated and determined by the arithmetic control section (4). If it is a movement command, drive units (5) and (6) are operated to move the XY table, etc. [Drive unit (5).

(6) is not limited to two sets, and some have multiple drive units such as Z-axis and A-axis.]

1. When there is an M code (man code) command for an attached device in the NC command, the arithmetic control unit (4) executes the control target [for example, the drive units (5) and (6) in Fig. 1].
] issues a stop command (usually MOO, etc.), and generally the relay output is turned off by the M code output section (force) to operate an external device ('x
(There are also types such as E current/voltage output, but here we have taken relay output as a representative example). The attached device (8) operates based on this relay output onlon.

[Problems to be solved by the invention] Since the conventional NC device is configured as described above, 1.
One M code can only perform a simple relay ON10FF, so if you want to make detailed settings for a rotary indexing table, for example, you will need to use another type of M code or use a large number of NC codes of the same M code. Problems such as the need to write information on the tape (for example, to rotate a rotary table with a setting unit of 1 degree by 21 degrees, 21 M codes for 1 degree rotation, or 2 M codes for 10 degree rotation and 1 degree It was necessary to write one M code for rotation).

This invention was made to solve the above-mentioned problems, and is capable of issuing all commands to attached devices such as robots or index tables connected to an NC that are impossible with a simple M code. , normal NC
The purpose is to obtain a device that can also be operated as a device.

[Means for solving problems]

The numerical control device according to the present invention provides a command machine for the machine tool using an NC code, and a command machine for the machine tool using an NC code, in order to control an accessory device attached to a machine tool equipped with a numerical control device, which cannot be done with a simple M code. It is designed to be given to an attached device.

[Effect]

When the arithmetic control unit in this invention detects an accessory device command included in an NC command, it does not treat it as a normal NC command and directly outputs it to the accessory device interface unit.

〔Example〕

FIG. 1 is a block diagram showing an embodiment of the present invention. In the figure, (1) is the operation panel for operating this device, and (2) is the result of this operation? Display section for checking (
3) is an input section for reading the tape provided with NC commands; (4) is an arithmetic control section for receiving and calculating NC commands from input section (3); and (5) is for outputting control signals. (6) is an X table drive section and a Y table drive section which are controlled by the output from the arithmetic control section (4), and (9) is a signal to the R8232C interface section 00 in the arithmetic control section (4). (+1 is the R8232C-f interface unit that converts and transmits the signal from the attached device command determination unit (9), (8) is the R8
This is an accessory device such as an indexing table that operates in response to a control signal from the 232c interface section (8).

Moreover, FIG. 2 is a descriptive diagram showing an example of the NC tape used in this invention. In the figure, the third and sixth lines are instructions for the attached device.

These instructions for attached devices take the form of annotations on the NC tape, such as (+ 1 < PA2OL) and (+1 < P
115L), the part surrounded by 0 is actually output to the attached device. Here, the rotary table is initially set at 20 degrees and then at 20+15=35 degrees.

The auxiliary device command determination unit (9) reads the character string as it is until a symbol indicating the end of the character string appears in the NC command read from the input unit (3). Send to R8232C interface section 00. The R8232c interface section 00 converts this character string into a signal of 1R8232c and outputs it to the attached device (8).

If there is no character string (+1〈) in the NC command, that block is once sent to the conventional arithmetic control section (4) to control the machine tool area.

In the above ba embodiment, the instruction for the attached device in the NC tape for input was in the form of an annotation (+1 <command), but of course the same effect can be obtained by using other characters for identification. can get.

Further, the attached device (8) can be connected not only by the R8232c interface but also by a GPIB (IEEE) or other type of interface, and the same effect can be obtained.

〔Effect of the invention〕

As described above, according to the present invention, since it is possible to write a command for an accessory device in an NC command, a simple M
It can complete various instructions that are not possible with code.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a descriptive diagram of an NC tape used in an embodiment of the present invention, and FIG. 3 is a block diagram showing the structure of a conventional NC device. In the figure, (1) is the operation panel, (2) is the display section, (
3) is the input section, (4) is the calculation control section, (5), (6
) is the XY table drive unit, (7) is the M code output unit, (
8) is an attached device, (9) is an attached device command determination unit, 00
is the R8232C interface section. In each figure, the same 1st day number indicates the same or equivalent part. Agent Patent Attorney Tadashi Sato Year M1 Figure 3 Figure 1: 714 to 8'81 4: 4'1 轡鼾

Claims (3)

[Claims] (1) In order to control the accessory equipment attached to a machine tool equipped with a numerical control device that cannot be done with a simple M code, the commands for the accessory equipment mentioned above are the same as the commands for the machine tool using the NC code. A numerical control device characterized in that the commands can be written on an input medium, and the commands can be given to the machine tool and the attached device. (2) A numerical control device according to claim 1, characterized in that instructions for an accessory device are written in the form of annotations in an input medium. (3) The numerical control device according to claim 1, wherein the numerical control device is capable of outputting a specific command among commands based on an NC code through various interfaces such as RS232C or GPIB (IEEE).