JPH1091224A - Numerical control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a machine tool maker to use an optional machine control command to an optional machine tool by receiving a machine control function command from an NC(numerical control) processing part and converting again the function command into the machine control command that is used at a sequence control part based on the conversion information which is stored in a machine control command data storage part. SOLUTION: A machine control command data 10B stores the conversion information MC1 including the correspondence between a machine control command MD which is read out of a machining program and a machine control function command MDf which is used at an NC processing part 10A. A machine control command conversion part 10C converts the machine control command MD that is read out of the machining program into the command MDf based on the information MC1 which is stored in the part 10B. A machine control command inverse conversion part 10D receives the command MDf from the part 10A and converts it again into the command MD which is used at a sequence control part 11 based on the information MC1 stored in the part 10B.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a numerical control device.

[0002]

2. Description of the Related Art In order to operate a machine tool, there is a machining program that describes a machine control command such as an axis movement command, a spindle rotation command, and ON / OFF control of a cutting fluid. The NC processing unit reads the machining program, drives a motor attached to the machine tool in accordance with the axis movement command, and issues a machine control command such as a spindle rotation command and ON / OFF control of a cutting fluid to the sequence control unit. Upon receiving the machine control command, the sequence control unit processes the machine control command according to the sequence program created by the machine tool maker to select a spindle gear and to turn on / off the cutting fluid motor.
And the like.

Hereinafter, embodiments of the prior art will be specifically described with reference to the drawings. FIG. 3 is a block diagram showing an example of a conventional numerical control device. In FIG. 3, 1 is a numerical control device, and 2 is a machine tool. The numerical control device 1 includes a numerical control unit 10 and a sequence processing unit 11, and the numerical control unit 1
0: NC that receives a machine control command and performs numerical control processing
It has a processing unit 10A, and the sequence control unit 11 processes and executes machine control commands according to a sequence program. An operation example of such a configuration will be described. First, the NC processing unit 10A receives a machine control command MD, an axis movement command SD, and the like, sends an operation control command NCSD to the machine tool 2, performs numerical control processing such as axis movement, and transmits the machine control command MD. Sequence control unit 1
Send to 1. Then, the sequence control unit 11 that has received the machine control command MD generates a control signal SPMD corresponding to the machine control command MD received according to the sequence program.
Is generated and transmitted, and I / O control processing is performed on the machine tool 2.

[0004]

When a machine tool maker considers using an arbitrary machine control command for an arbitrary machine operation, the above-described numerical control device uses the machine control command specified by the machining program. There is an NC processing unit that executes numerical control, which is partially fixedly used by a numerical control device maker (for example, in M code, pause: M00, spindle rotation: M03, etc.), There is a problem that a machine tool maker cannot use all machine control commands for arbitrary machine operations.
Further, even if the machine control command is not fixedly used by the NC processing unit, there is a machine control command automatically generated by the NC processing unit and commanded to the sequence processing execution unit. Even the machine tool maker could not set a machine control command for arbitrary machine operation.

The present invention has been made in view of the circumstances described above, and an object of the present invention is to provide a method for independently using a machine control command, which is partially used by a numerical control device manufacturer, inside a numerical control device. It is an object of the present invention to provide a numerical control device that allows a machine tool maker to use an arbitrary machine control command for an arbitrary machine operation without being conscious of a given machine control command.

[0006]

SUMMARY OF THE INVENTION The present invention relates to a numerical controller, and an object of the present invention is to associate a machine control command read from a machining program with a machine control function command used in an NC processing unit. A machine control command data storage unit for storing the converted information, and converting a machine control command read from the machining program into a machine control function command used in the NC processing unit based on the conversion information in the machine control command data storage unit. Machine control command conversion unit for receiving a machine control function command from the NC processing unit and converting the machine control command into a machine control command to be used in the sequence control unit based on the conversion information in the machine control command data storage unit And a unit.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of a numerical control device according to the present invention. In FIG. 1, 1
Is a numerical control device, and 2 is a machine tool. Numerical control device 1
Is composed of a numerical control unit 10 and a sequence control unit 11. The numerical control unit 10 receives a machine control function command and performs a numerical control process. An NC processing unit 10A, and stores a machine control command and conversion information of the machine control function command. A command data storage unit 10B, a machine control command conversion unit 10C that receives a machine control command and converts it into a machine control function command, and a machine control command reverse conversion unit 10D that receives the machine control function command and performs reverse conversion to the machine control command. The sequence control unit 11 executes and executes a machine control command according to a sequence program.

An operation example of such a configuration will be described. First, the machine control command conversion unit 10C receives an operation command including an axis movement command SD and a machine control command MD from the machining program, and if there is a machine control command MD, based on the conversion information MCI in the machine control command data storage unit 10B. It is converted into a machine control function command MDf. FIG. 2 shows an example of the conversion information MCI in the machine control command data storage unit 10B. FIG. 2 shows conversion information in which a machine control command and a machine control function command are associated with each other. When a machine control command MD, for example, M01 is received from a machining program, it is converted into a machine control function command MDf into M04. The machine control function command MDf is sent to the NC processing unit 10A together with the axis movement command SD and the like.

Next, the NC processing unit 10A receives the machine control function command MDf, the axis movement command SD, etc., sends an operation control command NCSD to the machine tool 2, and performs numerical control processing such as axis movement. The machine control function command MDf is sent to the machine control command reverse conversion unit 10D. At this time, if there is a machine control function command MDf automatically generated inside the NC processing unit 10A, it is similarly sent to the machine control command reverse conversion unit 10D. Then, the machine control command reverse conversion unit 10D receiving the machine control function command MDf converts the machine control command Mf based on the conversion information MCI of the machine control command data storage unit 10B.
Inverse conversion to D is performed. According to the example of FIG. 2, M04 converted by the machine control command conversion unit 10C is again converted back to M01. At this point, the machine control command MD returns to the command from the machining program, and the sequence control unit 1
Sent to 1. Finally, the sequence control unit 11 that has received the machine control command MD generates a control signal SP corresponding to the machine control command MD received according to the sequence program.
An MD is generated and transmitted, and I / O control processing is performed on the machine tool 2.

[0010]

As described above, according to the numerical controller of the present invention, the machine tool maker can select any machine control without being conscious of the machine control commands partially used by the numerical controller maker. Since the command can be used for any machine operation, a machine tool maker can easily realize a numerical control device having a machine control command having unique features.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of a numerical controller according to the present invention.

FIG. 2 is a diagram illustrating an example of conversion information in a machine control command data storage unit.

FIG. 3 is a block diagram illustrating an example of a conventional numerical control device.

[Explanation of symbols]

 Reference Signs List 1 Numerical control device 10 Numerical control unit 10A NC processing unit 10B Machine control command data storage unit 10C Machine control command conversion unit 10D Machine control command reverse conversion unit 11 Sequence control unit

Claims (1)

[Claims] 1. A machine control command data storage unit for storing conversion information in which a machine control command read from a machining program is associated with a machine control function command used in an NC processing unit, and a machine control command read from the machining program. To
Based on the conversion information in the machine control command data storage unit, N
A machine control command conversion unit for converting into a machine control function command to be used in the C processing unit; and a machine control function command received from the NC processing unit and used by the sequence control unit based on the conversion information in the machine control command data storage unit. A numerical control device, comprising: a machine control command reverse conversion unit that reconverts to a machine control command.