JPH06142954A - Control method by numerical control program of laser beam machine - Google Patents

Abstract

PURPOSE:To improve the work efficiency of laser beam machining by retrieving a working data area in which the machining condition corresponding to each working shape of a member to be worked is recorded, and executing a numerical control program based on its retrieval data. CONSTITUTION:In a working data area 11, a working condition which corresponds to each working shape of a plate being a member to be worked, and also, is set in the course of cutting for cutting the plate is recorded. The working condition consists of a working speed, a laser output as a laser output condition, a frequency, duty, the kind of gas as an assist condition, pressure of gas, and a piercing number for showing a working start position, etc. In an auxiliary area 13, details of the working condition for executing piercing are recorded, and the recorded contents are a laser output, a frequency, duty, the kind of assis gas, pressure, etc. An NC device retrieves the working data area 11 including the auxiliary area corresponding to the working shape of the plate, and executes an NC program 15 based on the retrieved data. The laser beam machine executes laser beam cutting.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION This invention relates to the material and
The present invention relates to a laser cutting processing control method for executing a numerical control program based on plate thickness data and processing shape data, and in particular, a processing data area that can be recorded for each processing shape of a workpiece is provided in a memory and The present invention relates to a method of executing the numerical control program based on data.

[0002]

2. Description of the Related Art Conventionally, in a laser cutting processing control method that executes a numerical control program based on material / plate thickness data and processing shape data of a workpiece, an operator appropriately sets the processing conditions of the workpiece. Must be set. The processing conditions to be set include, for example, the conditions of the material to be processed such as material and plate thickness, cutting processing conditions such as processing speed and nozzle height, laser power (power or its maximum value), laser frequency such as pulse frequency and duty ratio. Output conditions, type of assist gas,
The items include assist gas conditions such as pressure and various processing condition items (eg, piercing, edge processing).

These conditions are recorded in the machining data area in the numerical control program.

[0004]

However, since the number of items (amount) that can be written in the machining data area is limited, only items common to various machining patterns can be input, and detailed items cannot be entered. You cannot enter.

For this reason, when various processing patterns are processed in the laser cutting process, the processing conditions must be changed each time, so that the work efficiency is lowered.

Therefore, an object of the present invention is to provide a method capable of inputting various machining patterns in detail in a machining data area in order to solve the above problems.

[0007]

In order to achieve this object, the present invention provides a control method of laser cutting processing which executes a numerical control program based on material / plate thickness data and processing shape data of a member to be processed. A machining data area in which a machining condition corresponding to each machining shape of a workpiece is recorded in a memory, the machining data area corresponding to the machining shape of the workpiece is searched, and a numerical control program based on the retrieved data Is performed to perform laser cutting processing.

[0008]

According to the above construction, based on the material / plate thickness data of the member to be processed and the processing shape data, the processing data area in which the processing condition corresponding to each processing shape of the processing member is recorded is searched, and the search is performed. A laser cutting process is performed by executing a numerical control program based on the data.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments according to the present invention will be described below with reference to FIGS.
It will be explained based on.

FIG. 1 is an explanatory view showing an example of a memory state in a control device (hereinafter referred to as an NC device) of a laser processing apparatus according to the present invention. Memory 1 status is 00
ROM area 3 from address 00 to address DFFF and E001
The FFFF address is assigned to the RAM area 5 from the address. In the RAM area 5, a user area 7 from the address E001 to the address EFFF is freely used by a worker, and the address FFFF to the address FFFF is allocated to the work area 9 used by the system. Further, the user area 7 is a processing data area 11 for recording processing conditions of laser processing, an auxiliary area 13 for recording details of the processing conditions, and an NC program 15 which is a numerical control program recording processing conditions of laser processing. Are allocated to the free area 17 for storing information such as

In the processing data area 11, processing conditions corresponding to each processing shape of a plate material which is a member to be processed and during cutting for cutting the plate material are recorded. The processing conditions include, for example, a processing speed when processing a plate material, a laser output as a laser output condition, a frequency, a duty, a gas type as an assist gas condition, a gas pressure, and a piercing number indicating a processing start position. Is.

Details of the processing conditions for performing the piercing process are recorded in the auxiliary region 13, and the recorded contents are laser output, frequency, duty, type of assist gas, pressure and the like.

In the above configuration, the NC device has a machining data area 1 including an auxiliary area 13 corresponding to the machining shape of the plate material.
1 is searched, and the NC program 15 is executed based on the searched data. Then, the laser processing device performs laser cutting processing.

A method of searching the processing conditions necessary for laser processing using the processing data area 11 and the auxiliary area 13 will be described below with reference to FIGS. 2, 3 and 4.

FIG. 2 shows a memory map of the machining data area 11 in which machining conditions based on various machining shapes (1 to 4) are recorded. In the drawing, the processing condition of the processed shape 1 is recorded at the address E001, and the processing condition of the processed shape 2 is recorded at the address E002. Therefore, if the address number of the processing data area 11 is designated, the processing condition of the desired processing shape can be selected, and the laser cutting process of the plate material can be performed according to the NC program 15 using this condition.

FIG. 3 shows the auxiliary area 1 in the processed data area 11.
A method of designating the auxiliary region 13 when 3 is provided will be described. The processed data area 11 is similar to the memory state of FIG. 2, and addresses E001 to E004 are allocated to the processed data area 11. An address number E011 for instructing the piercing processing condition is designated at the address E001. When the address number E011 is designated in the processed data area 11, the condition of the auxiliary area 13 designated by the address number E011 is automatically executed. That is, the address number E011 indicating the auxiliary area 13 is set to the processed data area 11
By inserting it inside, the amount of data that can be recorded in the processed data area 11 can be increased. Therefore, it is possible to input detailed information to the limited processing data area 11.

Further, although the auxiliary region 13 is set to the piercing processing condition in the above description, it may be set to the processing condition corresponding to the processing shape (eg, edge processing).

Therefore, by changing only the address number by the operator, it is possible to perform laser cutting processing corresponding to various processing shapes.

FIG. 4 shows a method of recording the minimum necessary processing conditions in the processing data area 11 and directly specifying the other detailed processing conditions from the NC program 15 to the auxiliary area 13. In the NC program 15, G100 is a command statement for performing piercing, and performs piercing based on the content of the address number E011 in which the piercing conditions are recorded. X and Y indicate coordinate positions for positioning the plate material.

Since the auxiliary area 13 can be directly designated by using the G100 command statement from the NC program 15, the limited processed data area 11 can be effectively used.

As described above, by providing the processing data area in which the processing conditions are recorded for each processing shape of the plate material based on the data such as the material and thickness of the plate material, the working efficiency of the laser processing can be improved. Further, by using the auxiliary area as a part of the processed data area, the limited processed data area 11 can be effectively used.

The present invention is not limited to the above-described embodiments, but the present invention can be implemented in modes other than the above-mentioned embodiments.

[0023]

As described above, according to the present invention, it is possible to record machining conditions corresponding to each machining shape of a workpiece in the machining data area, so that the machining data area can be used effectively. You can

Therefore, the work for changing the working conditions corresponding to each working shape is reduced, so that the working efficiency can be improved.

[Brief description of drawings]

FIG. 1 is a memory map embodying the present invention.

FIG. 2 is a memory map of a processed data area in FIG.

FIG. 3 is a memory map provided with an auxiliary area in FIG.

FIG. 4 is an explanatory diagram of an NC program in FIG.

[Explanation of symbols]

 1 Memory 11 Machining Data Area 13 Auxiliary Area 15 NC Program (Numerical Control Program)

Claims (2)

[Claims] 1. A laser cutting processing control method for executing a numerical control program based on material / plate thickness data and processing shape data of a member to be processed, and records processing conditions corresponding to each processing shape of the member to be processed. The laser processing is characterized in that the processed data area is provided in the memory, the processing data area corresponding to the processed shape of the workpiece is searched, and the numerical control program is executed based on the searched data to perform the laser cutting processing. A control method of a device by a numerical control program. 2. A machining area which is a part of the machining data area and has an auxiliary area for recording machining conditions, which is provided in a memory separately from the machining data area, and includes an auxiliary area corresponding to a machining shape of a workpiece. 2. The control method by the numerical control program of the laser processing apparatus according to claim 1, wherein a laser cutting process is performed by searching a data area and executing a numerical control program based on the searched data.