JPS62293307A - Numerical controller - Google Patents

Abstract

PURPOSE:To give commands to plural control subjects of the same system with a single address code by giving the commands of the same type to the corresponding motors through a distribution memory for commands of the same type in response to the spindle number of each motor. CONSTITUTION:The new number of rotation commands (of the same type), i.e., S1 = 5000, S2 = 4000 and S3 = 3000 which are read out of a working program memory 4 by a single address code S to three spindles are analyzed by an arithmetic part 3 of a numerical controller 2 and supplied to a distribution memory 8 for commands of the same type to be stored in each memory position corresponding to the designated spindle number. At the same time, the drive signal of 5000rpm is delivered to a motor 71 for the 1st spindle from the memory 8 via a machine I/F 6 together with the drive signals of 4000rpm and 3000rpm delivered to motors 72 and 73 for drive the 2nd and 3rd spindles respectively. Then these motors 71 - 73 are driven by each designated number of rotation. While an idle address code B is available to other purposes of application.

Description

Detailed Description of the Invention 3. Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a numerical control device for controlling a machine tool having a plurality of rotating axes including a main shaft. [Technology] FIG. 2 is a block diagram showing the configuration of a conventional numerical control device that requires a rotation speed command for a second spindle, etc. in addition to a rotation speed command for a first spindle.

Reference numeral 1 denotes a nine-digit program created by the programmer, a two-digit numerical controller, 3 an arithmetic unit, 4 a program memory for storing program 1, and 5a and 5b the data analyzed for each address code of each command. 6 is the machine interface x −, x, (g Bottom, machine I
/F), 7a, and 7b are motors that control the rotational speed of the first spindle and the rotary tool.

Next, the operation will be explained. First, the cannibal program 1 created by a programmer is read into the cannibal program memory 4 via the arithmetic unit 3 in the numerical control device 2 . The calculation unit 3 creates data analyzed in units of each address code of the command, inputs it to, for example, the analysis data memory 5a or the analysis data memory 5b, and transmits the data to each motor 7& through the machine I/F 6'.

7b. Normally, the command for the first spindle is as follows:
The address code (S) for the main axis command is used, but if other rotational speed commands are required, other empty codes, such as address code (2) for the auxiliary axis command, are used.

[Problem that the invention seeks to solve]

Conventional numerical control devices use an address code (another address code (6) instead of plow) to specify the rotation speed of a second spindle other than the first spindle. To determine that it is a number command〈〈.

Another problem is that there is a limit to the number of address codes that can be used.

The present invention has been made to avoid the above-mentioned problems, and it is an object of the present invention to provide a numerical control device that can uniformly issue the same type of commands to a plurality of spindles using one address code.

[Means for solving problems]

The numerical control device according to the present invention assigns spindle numbers to a plurality of spindles, adds the spindle numbers from the Canadian program to the same kind of commands formed by one address code, and also sends these same kind of commands according to the spindle numbers. The same type of command is stored in a command distribution memory, and the same type of command is given to each spindle from the same type of command distribution memory in correspondence with its spindle number.

[Effect]

The same kind of command distribution memory according to the present invention can distinguish the same kind of commands by adding a spindle number to one address code.
It is stored according to the spindle number, and distributed and outputted to the corresponding spindle according to the spindle number.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. 1st
In the figure, 71, 72.7. are motors that rotate each spindle and are differentiated by spindle numbers such as l, 2゜3, and 8 are motors 7□ to 7. Similar commands such as rotation speed commands? One address code (6) K is a 9-digit similar command distribution memory that stores the above-mentioned spindle numbers and distinguishes them, and distributes and outputs these stored similar commands to motors 71 to 7°K according to each spindle number. It is a digital-to-analog converter (hereinafter referred to as a %DA converter). Other components that are the same as those of the prior art shown in FIG. 2 are designated by the same reference numerals.

Next, the operation will be described assuming that the similar command is a rotation speed command.

One address code (new rotation speed command for the three spindles read out with the mark) from the machining program Mesori 4.
Similar directives) For example, 51 = 5000°S 2 = 4000,
53=3000 is analyzed by the arithmetic unit 3 in the numerical control device 2 and input into the similar command distribution memory 8, and each specified spindle number (for example.

SL is stored in a memory location corresponding to the first spindle, S2 is the second spindle, etc.). At the same time, from this same kind of command distribution memory 8, 5000 rpm is sent to the motor 7□ that drives the first spindle through the machine ■/F6, and 400 Orpm% is sent to the motor 72 that drives the second spindle. A drive signal of 300 Orpm is distributed and output to each motor 7□ to 7. is driven at the commanded rotational speed. fc, address code for spindle rotation speed command
).

Empty address codes such as (8) that have been used in the past can be used for other purposes, such as for driving the DA converter 9 in this embodiment.

In addition, although the above embodiment describes the case where the rotation speed of the main shaft is controlled, the same control can be performed even if position information is used instead of a single rotation speed command, for example, it is necessary to command multiple turrets. Even with a numerical control device, control can be performed in the form of a command such as an address code (TI=) as in 2.

〔Effect of the invention〕

As described above, according to the present invention, since the same type of command is configured to be issued to the corresponding motor according to its spindle number using the same type of command distribution memory, multiple control objects of the same system can be commanded using one address code. This makes it possible to use other address codes effectively, and also makes it easier to create and inspect Canadian programs.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a numerical control device according to an embodiment of the present invention, and FIG. 2 is a block diagram showing a conventional numerical control device. 1 is a computer program, 2 is a numerical control device, 3 is a calculation unit,
4 is the Canadian program memory, 5b is the B data memory, 6
is machine I/F, 7, ~7. is a motor. 8 is a similar command distribution memory, and 9 is a D-A converter. In addition, in FIG. 1, the same reference numerals indicate the same or equivalent parts. Patent applicant Mitsubishi Electric Corporation Representative Patent attorney 1) Hiroshi Sawa
□ (2 others) ゛1.Indication of the incident Patent Application No. 134753, No. 1981-29
Name of the invention Numerical control device 3, relationship to the person making the amendment Patent applicant address 2-3 Maruno Potter-chome, Chiyoda-ku, Tokyo Name (601) Mitsubishi Electric Corporation Representative Moriya Shiki 4th generation Director Postal code 105 Address
Column 6 of the detailed description of the invention in the specification of No. 4-10 Nishi-Shinbashi, Minato-ku, Tokyo, Contents of the amendment

Claims (1)

[Claims] In a numerical control device that requires multiple commands of the same type to drive and control other spindles such as a second spindle in addition to the first spindle, the spindle number of each spindle is added to one address code. The apparatus is characterized by having a similar command distribution memory that stores a plurality of the same kind of commands differentiated by the spindle number according to the spindle number, and distributes and outputs each of the stored same kind of commands to each of the spindles according to the spindle number. numerical control device.