JPH09101812A - Numerical controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a numerical controller capable of automatically retrieving an application state of an offset and displaying the application state. SOLUTION: An offset data storing means 1 stores an offset and an offset amount corresponding to the offset as offset data. An offset application state retrieving command means 2 commands the retrieval of the offset application state. An offset application state retrieving means 3 retrieves the offset application state from a working program registered in a working program area 5 and outputs the retrieved result. An offset application state list preparing means 4 prepares an offset application state list from the offset data and the retrieved result. A display device 22 displays the offset application state list.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a numerical controller, and more particularly to a numerical controller having an offset function.

[0002]

2. Description of the Related Art As an offset function of a numerical controller, there are a tool offset function and a work origin offset function. The tool offset function is a function of correcting a displacement of a mounting position of a tool, a displacement caused by wear of a cutting edge of the tool, and the like. The work origin offset function is a function to correct the deviation of the distance from the machine origin to the program origin corresponding to each work. Whichever offset function is used, the tool offset or the work origin offset set in the offset memory can be displayed on the display device by the operator's operation.

[0003]

However, in the conventional numerical control device, the usage state of the tool offset or the work origin offset is not displayed. Therefore, when the operator wants to use the offset, the operator himself needs to search from the machining program that specifies which offset is unused. For this reason, when the number of tool offsets or work origin offsets is large, it takes time to perform the search operation, and efficient programming cannot be performed.

The present invention has been made in view of the above circumstances, and provides a numerical control device capable of automatically retrieving a use state of a tool offset or a work origin offset and displaying the use state. The purpose is to

[0005]

According to the present invention, in order to solve the above-mentioned problems, in a numerical controller having an offset function, an offset data storage means for storing an offset number and an offset amount corresponding thereto as offset data, Offset use state search command means for issuing a search command of offset use state, and receiving the search command,
Offset usage status searching means for searching the usage status of the offset from the registered machining program and outputting the search result, and offset usage status list creating means for creating an offset usage status list from the offset data and the search result And a display device that displays the offset use state list.

Here, the offset data storage means stores the offset number and the offset amount corresponding thereto as the offset data. The offset use state search command means issues a search command for the offset use state. The offset usage status search means searches the usage status of the offset from the registered machining program and outputs the search result. The offset usage status list creating means creates an offset usage status list from the offset data and the search result. Then, the display device displays the offset usage status list.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. However, since the tool offset function and the work origin offset function are applied to the present invention in the same manner as the offset function, only the tool offset function will be described.

FIG. 1 is a conceptual diagram of the present invention. The main part of the numerical control device of the present invention is the offset data storage means 1.
And an offset usage status search command means 2, an offset usage status search means 3 that searches the machining program area 5 in response to the search command, and an offset usage status that creates an offset usage status list from search results and offset data. The list forming means 4 and the display device 22 for displaying the offset use state list are provided.

The offset data storage means 1 stores tool offset data including an offset number and an offset amount corresponding to the offset number. According to this figure, the tool offset data of offset numbers D01 to D04 are stored.

The offset use state search command means 2 issues a search command for the tool offset use state. There are a case where a search command is automatically issued when the edit mode is switched to the automatic operation mode, and a case where a command is issued by a soft key from an operator.

After receiving the search command described above, the offset usage condition searching means 3 searches the machining program registered in the machining program area 5 for the machining command received for the usage condition of the tool offset, The search result is output. For example, in this figure, the machining program area 5
It is assumed that there are machining programs with program numbers O0001 to O0003 and that these machining programs have received a search command. Then, it is assumed that the tool offset data D01 to D03 are used in association with each other. Then, in this case, the tool offset data D
Since 01 to D03 have been used, this information is output as a search result.

The offset use status list creating means 4 is
Tool offset data and offset usage status search means 3
An offset usage status list is created from the search result which is the output of. For example, as described above, the tool offset data is from D01 to D04, and as a result of the search, it is found that D01 to D03 have been used.
Can be seen as unused. Therefore, a list is created to represent such a usage state. The display form of the offset usage status list will be described later. And the display device 2
2 displays the created offset usage status list.

FIG. 2 is an overall flow chart showing the processing procedure of the present invention. [S1] It is determined whether or not to search. That is, when the edit mode is switched to the automatic operation mode, or when the operator presses the soft key, the process proceeds to step S2 to perform the search. If not, no search is performed. [S2] The usage state of the tool offset is searched from the machining program that has received the search command. [S3] A tool offset use state list is created from the tool offset data set in the tool offset memory and the result retrieved in step S2. [S4] A tool offset usage status list is displayed.

FIG. 3 is a display screen of a tool offset use state list. The tool offset usage status list 6 includes an offset number, an offset amount, and a usage status as items. “*” Shown in the used state indicates an unused tool offset, and a mark without “*” indicates a used tool offset. Also,
You may distinguish between used and unused depending on the display color and the like.

FIG. 4 is a diagram showing a schematic configuration of hardware to which the present invention is applied. The processor (CPU) 11 controls the basic functions of the numerical controller. A read-only storage device (ROM) 12 stores a system control program. Random access memory (RAM) 13
Stores temporary data such as input / output signals. The non-volatile memory 14 stores various data such as a part program and tool offset data that should be retained even after the power is turned off. In the panel 20, a graphic control circuit 21, a display device 22, a keyboard 23 and a software key 24 are provided.
Is provided. The graphic control circuit 21 is a CPU
The image information sent from 11 is converted into a displayable signal,
Output to the display device 22. As the display device 22, a CRT, a liquid crystal display or the like is used. The keyboard 23 is provided with operation keys and function keys used for data input. The meaning of the software key 24 changes according to the operator's screen selection, and the necessary keys are displayed on that screen. The axis control circuit 15 receives a command such as an interpolation pulse from the CPU 11 and outputs a command to move the axis to the servo amplifier 16. The servo amplifier 16 receives the movement command and drives the servo motor in the machine tool 19. The programmable machine controller (PMC) 17 is a machine tool 1 that is a sequence program formed in a ladder format.
Control 9 Note that these components are connected to each other by a bus 18.

[0016]

As described above, according to the present invention, the usage state of the tool offset or the work origin offset is automatically retrieved and the usage state is displayed on the screen. As a result, the operator can know at a glance whether it has been used or not, so that the operator does not have to search for the machining program and programming can be performed efficiently.

[Brief description of the drawings]

FIG. 1 is a block diagram showing the principle of the present invention.

FIG. 2 is an overall flowchart showing a processing procedure of the present invention.

FIG. 3 is a display screen example of a tool offset usage state list.

FIG. 4 is a diagram showing a schematic configuration of hardware to which the present invention is applied.

[Explanation of symbols]

 1 Offset Data Storage Means 2 Offset Usage Status Search Command Means 3 Offset Usage Status Search Means 4 Offset Usage Status List Creating Means 5 Machining Program Area 22 Display Device

Claims (5)

[Claims] 1. A numerical controller having an offset function, offset data storage means for storing an offset number and an offset amount corresponding to the offset number as offset data, and offset usage status search command means for issuing a search command for an offset usage status. In response to the search command, the usage status of the offset is searched from a registered machining program, and an offset usage status search unit that outputs the search result, and an offset usage status list from the offset data and the search result. A numerical control device comprising: an offset usage status list creating means for creating; and a display device for displaying the offset usage status list. 2. The numerical controller according to claim 1, wherein the offset function is a tool offset function or a work origin offset function. 3. The numerical control apparatus according to claim 1, wherein the offset use state search command means automatically issues a command when switching from the edit mode to the automatic operation mode. 4. The numerical controller according to claim 1, wherein the offset use state search command means is a soft key. 5. The numerical control apparatus according to claim 1, wherein the offset use state list creating means creates an unused offset in a display form different from that of the used offset.