KR100401635B1 - Method for check grammer a manufacture programming of numerical control type machine tool - Google Patents

Abstract

The present invention makes it possible to search in advance whether or not the grammar of a machining program created for machining any workpiece using a numerically controlled machine tool is defined in a specific code format defined in the NC to be set up.

The present invention creates a part program in a code format defined for each NC according to a machining request for a workpiece, converts a grammar definition file according to the code format of the NC to which the created part program is to be applied, and then executes a grammar search. When Run grammar search is selected, select the block to search, read the contents of the grammar definition file in the selected block, convert the letters in the search block to uppercase, delete the blanks in the search block, and define the G-code definitions in the search block. After analyzing the address definition file, the grammar search is performed, and if an error is detected, the corresponding information is indicated through the display means. Therefore, when one workpiece is machined using NCs of different manufacturers, it is possible to search in advance whether or not the grammar of the part program written in each NC is normally written, providing a reduction in process time and an error in the part program. Can be found prior to threading to provide reliable protection for workpieces and machines.

Description

METHODE FOR CHECK GRAMMER A MANUFACTURE PROGRAMMING OF NUMERICAL CONTROL TYPE MACHINE TOOL}

The present invention relates to a method for retrieving a workpiece machining program set up in a numerical control machine tool (hereinafter referred to as "NC"), and more particularly, to a machining created for machining any workpiece. The present invention relates to a method for retrieving a part program grammar of a machine tool, which enables to search in advance whether a grammar of a program is defined in a specific code format defined in a corresponding NC to be set up.

In general, NC is a device that automatically performs work on a workpiece, a device that commands movement to the machine, a device that detects whether the machine is moving normally according to the commanded command, a target value for machining the base metal, and a machining Compensation apparatus for comparing the current detected value to be processed to the target value if there is a deviation from the target value.

In order to process an arbitrary workpiece using the NC, an operator uses a unique code format defined by the NC to determine the shape and dimensions of the workpiece, the processing order, the cutting speed, the type and size of the cutting tool, and the like from the drawing of the workpiece. According to the program, a part program is created using an external program development device, then set up in the NC using communication, floppy disk, and other methods, and then the machining of the workpiece is performed.

In the case of such NC, each manufacturer has a function to search the part program grammar, but normally only the part program grammar of the company's NC can be inspected. Even if they have the same, the unique code formats for creating a part program are set differently for each manufacturing company.

Therefore, in order to process the same workpieces using NCs of different manufacturers, the operator must create a machining program in accordance with the format of the unique code defined in each NC of the manufacturer. The grammar search checks whether the part program created after the setup using the other method is written in the code format defined in the NC to prevent errors in machining of any workpiece.

As described above, in order to search the grammar of the part program, it is necessary to set up the NC and execute the search. If a problem is found in the part program, the part program is rewritten using an external development device. Then there is a cumbersome problem of having to set up the NC again.

In addition, an operator who uses several types of NCs from different manufacturers accidentally enters a wrong code value while creating a part program for each NC in order to process a single workpiece. The delay occurs frequently, and a fatal error occurs, which causes a problem that the finished workpiece cannot be used.

In addition, when the NC is operated by the machining program of the wrong code type due to the operator's mistake, there is a problem that a fatal failure occurs in expensive NC.

The present invention is to solve the above problems, the object is to change the grammar definition file according to the code format of each NC for the machining program for any workpiece produced in code format so that the NC can recognize By making the program searchable, delays in processing time and errors in the part program and NC are prevented.

1 is a block diagram of a machine program grammar retrieval apparatus of a machine tool according to the present invention.

2 is a flow chart for implementing a method for retrieving a part program grammar of a machine tool in the present invention.

<Description of the symbols for the main parts of the drawings>

10: key input unit 20: external input module

30: power supply unit 40: control unit

50: display unit

The present invention for achieving the object as described above, the process of creating a part program in the code format defined for each NC in accordance with the machining request for the workpiece, and the grammar in accordance with the code format of the NC to apply the created part program Converts the definition file and executes a grammar search run, selects a block to search if grammar search run is selected, reads the grammar definition file contents in the selected block, and converts the letters in the search block to uppercase. Deleting the blanks in the next search block, analyzing the G-code definition and the address definition file in the search block, performing a grammar search, and instructing the corresponding information through the display means when an error is detected. It features.

Only one block is selected from among a plurality of blocks constituting the part program, and the grammar search for the part program is selected step by step from the first block constituting the program. It is characterized by.

In the above, the grammar search of the part program is performed by analyzing the address definition file and the G-code definition file constituting the selected block.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As can be seen in Figure 1, the machining program grammar search apparatus of the machine tool according to the present invention, the key input unit 10, the external input module 20, the power supply unit 30, the control unit 40 and the display unit 50 The key input unit 10 is a device for inputting a key code for creating a machining program from a drawing of a workpiece requested to be processed, and through the analysis of the drawing, the shape and dimensions of the workpiece, the processing sequence, the speed and type of the cutting tool. After selecting the size and size, and input the code value defined in the NC to be processed.

The external input module 20 is an external input communication device, which serially interfaces a machining program for a workpiece created by communicating with a device such as CAD / CAM or is stored through a separate machining program device and stored through a floppy disk or CD. Read and set up the program.

The power supply unit 30 is responsible for supplying power to each load of the system so that the grammar search of the machining program written on any workpiece can be performed.

The controller 40 determines whether the corresponding part program is written in the form of a code suitable for the NC to which the desired part is to be machined after the part program for the workpiece is set up through the key input unit 10 or the external input module 20. When an input of a signal for searching for is detected, the corresponding program is analyzed to determine whether it is normally written, and then information about the determined result is output.

The display unit 50 is composed of a liquid crystal display device or other display device, and displays the search results for the processing program output from the control unit 40 in the form of code, text, or graph so that an operator or an operator of the system can recognize the result. Give it.

The operation of executing a search of a machining program created for an arbitrary workpiece in the configuration of the present invention including the functions as described above will be described with reference to FIG.

When a machining request is made for an arbitrary workpiece, the operator or part program developer analyzes the drawing of the workpiece and then fits the respective NC to machine the workpiece using the system's key input 10 or a separate program generator. A machining program is created (S101) (S102).

As described above, the machining program created by the operator or the developer of the machining program through the key input unit 10 is suitable for the code format set for each manufacturer's NC in the state in which the machining program is completed for each NC. In order to search whether or not the program is written in advance, the selected grammar search program is displayed on the display unit 50 using the key input unit 10, and then the controller is selected. The processor in 30 selects a block to be retrieved by reading a function of the corresponding machining program Grammer.dll (S104).

In the above-described machining program, a plurality of blocks are collected and configured, and when a block to be searched is selected, a first block constituting the machining program is usually selected.

When the block selection for the machining program is performed as described above, the controller 30 reads the contents of the grammar definition file constituting the block (S105).

In the above grammar definition file, the type and type of G-code and address are defined according to the type of NC of each manufacturer. The grammar definition file is divided into the first part which is an address definition part and the second part which is a G-code definition part.

In case of address definition, it defines the address number which is numbered sequentially from '0' as many as the number of addresses defined in NC, and the letter representing the address used in NC. If you use ',' symbol among symbols, the address expression is replaced with '!', Integer is '1', real number is '0', and the minimum address can be defined. In address minimum value, the address maximum value which is the maximum value that the defined address can have.

For example, A0, N, 1,1,9999999; If defined with a block number address,

The address definition is 'block number address', the address number is 'A0', the address representation is 'N', the address type is 'integer', the minimum value is '1' and the maximum value is '9999999'.

Also, A1, X, 0, -99999.999,99999.999 X-axis address

A2, Y, 0, -99999.999,99999.999 Y-axis address

A3, Z, 0, -99999.999,99999.999 When defined with Z-axis address,

The address is defined as 'address on the X, Y, Z axis', the address number is 'A1, A2, A3', the address expression is 'A, Y, Z', and the address types are all real numbers. The minimum values are '-99999.999' and '99999.999' for both X, Y and Z axes.

Also, A21,! C, 0, -99999.999,99999.999 Chamfer

If defined as A22,! R, 0, -99999.999,99999.999 Round

The address definitions are 'chamfer' and 'round', the address numbers are 'A21' and 'A22', the address expression is '! C (, C)', '! R (, R)', and the address types are all It is a real number, and the minimum and maximum values are '-99999.999' and '99999.999', which are the same for both the chamfer and the round.

In the grammar definition file, the definition of G-code is G-code, which is a unique execution command code defined for each manufacturer's NC, and G-code modal, which is a unique G-code group number defined for each manufacturer's NC. Group number, G-code that can be used alone can be defined as '1' or single block command code that is defined as '0', then input the address after '' in front of the address that must be used for each G-code. In the case of an undefined G-code, the required address definition is entered.

For example, for M100 NC

G00,1,0, * ,:

If it is defined as G01,1,0, * ,:

'G00' represents a rapid traverse command, 'G01' represents a linear traverse command, the 'G-code modal group is defined as' 1', it is not a single command code and there is no address to use together.

Also, G04,0,1, * ,:

If it is defined as G06.1,1,0, X, Y, Z ,:

'G04' is a dwell designation command, G-code modal group is '0', single block command code, no other G-code can be commanded in the same block, and addresses other than the address used with the code are It is ignored even if ordered.

'G06.1' is a spline interpolation instruction, G-code modal group is '1', it is not a single instruction code, and the address that can be used together is 'X, Y, Z'.

In addition, when defined as G81,9,0, R, X, Y, Z ,:

'G81' is a drill cycle and spot boring cycle instruction, the G-code modal group is '9', not a single block instruction code, and the address to be used together is 'R, X, Y, Z'. Among them, the address that must be used is 'R'.

When the reading of the grammar definition file contents having the structure of the address and the G-code definition part as described above is completed, the search processor in the control unit 30 converts the letters in the block to be searched to uppercase (S106). The blank space existing in the block is detected and deleted (S107).

Subsequently, when the above-described preprocessing operation is completed in the processor in the controller 30, a grammar search is performed on the defined block to determine whether an error exists (S108) (S109).

The grammar search in the defined block searches for the presence of an empty block within the defined block, the existence of the block number of the defined block, the search for the unknown G-code, and the exclusive use of the G-code. Search for the presence of a G-code in the same block, search for the existence of an unknown address, search the format format of an address, and the presence of the required address in the G-code. It searches for whether or not, searches the range of the minimum / maximum value of the address value, and searches the grammar for the defined block by searching the correlation between the address character and the value on the same line.

If it is determined that the error does not exist in the block where the grammar search is performed by the above procedure, the grammar search is performed on the next block of the block that has performed the current grammar search, and the error exists in the block where the grammar search is currently performed. If it is determined that the processor in the controller 40 outputs the retrieved error information to the display unit 50 and instructs the creator or operator of the machining program (S110).

The information of the error indicated on the display unit 50 is indicated by the letter or graph or other method of the block number or block location where the error occurs so that the operator or the programmer can easily recognize the corresponding G-code. Or, the program writer can easily recognize it. For example, "There is no block to search for grammar in XX", "There are no block numbers in XX", "G code unknown to XX. Exists. "," XX cannot be used with other G codes. "," The G code group of XX has the G code of X repeated in one block. " And the like.

When the grammar search is completed for one block through the above operation, the grammar search is performed for the next block, and this series of operations are sequentially performed for all the blocks constituting the machining program created for the arbitrary workpiece. When the grammar search for the final block is completed, the search operation is stopped (S111).

As described above, in the present invention, when machining a single workpiece using NCs of different manufacturers, it is necessary to determine whether or not the grammar of the machining program is normally written before setting up a machining program written in NC of each manufacturer in NC. Searching provides a shorter process time, and errors in the part program can be found before actual machining, providing reliable protection of workpieces and machines.

In addition, the author of the part program and the NC operator can also easily modify or create the NC grammar file to perform error detection of the part program, providing stability and reliability in the use of the NC.

In addition, in the present invention, when a single workpiece is processed using several NCs of different manufacturers, the application of the created program is changed by changing the NC grammar definition file according to the code format of each NC. You can search.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent embodiments are possible. Therefore, the true scope of protection of the present invention should be defined only by the appended claims.

Claims (5)

Creating a machining program, which is a machine language that can be recognized by the NC, in a code format defined for each NC according to a machining request for a workpiece; Converting a grammar definition file according to the NC code format to which the created part program is to be applied, and then selecting a block to be searched to execute a grammar search execution; Reading a Grammer.dll file of grammar definition file contents in a selected block; Converting the letters of the read Grammer.dll file to uppercase and then deleting the blanks existing in the search block; Analyzing the G-code definition and the address definition file in the search block to perform a grammar search, and instructing the corresponding information through the display means when an error is detected; A method for retrieving a grammar definition of a machine tool, comprising: modifying a grammar definition file in which an error is detected and setting it as a machining program of a corresponding NC. The method of claim 1, And wherein only one block is selected from among a plurality of blocks constituting a machining program as a block to be selected by the grammar search execution. The method of claim 1, The grammar search for the part program is selected step by step from the first block to the final block constituting the program. The method of claim 1, The grammar search of the machining program is performed by analyzing the address definition file and the G-code definition file constituting the selected block. The method of claim 1, The grammar search of the part program searches for an empty block and whether a block number exists, whether an unknown G-code exists, whether a single-use G-code exists, or a G-code of the same G-code group within the same block. The grammar search is performed by correlation between the address character and the value on the same line, whether there is an unknown address, whether an address is formatted, whether an address is present in a G-code, whether an address exists, and whether a range of address values is present. To search the part program grammar of a machine tool.