JPS5846408A - Control method of numerical controlled machine tool - Google Patents

Abstract

PURPOSE:To prevent the erroneous input of work information for a program by classifying final work forms shown in a drawing by prescribed specific work contents, and inputting the work information. CONSTITUTION:When the power switch of a numerical controlled machine tool is turned on, an initial value is stored in an RAM4 and a function information menue stored in an ROM3 is displayed on a display 13 through a display controller 7. Then when a desired menue key on a keyboard 14 is pressed over a look at the menue diplay, pressing a key which corresponds to a dot work mode displays each work unit on the display 13, and pressing a key which corresponds to a line work mode displays each work unit on the display 13; and pressing a key which corresponds to a surface work mode displays each work unit on the display 13.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for controlling input of machining information in a numerically controlled machine tool.

Conventionally, in order to input machining information into a numerical control device, each machining element for each machining content of the final shape described in the drawing, for example, center machining, tri-μ machining, and chamfer machining for drill hole machining. The machining elements are developed based on the tool as shown in Figure 1, and the selection of the tool, the movement of the tool corresponding to the cutting shape, the machining order, etc. are input after being converted into a language that can be read by the numerical control device. I have to be patient, but
Converting drawing information into machine language requires a highly skilled programmer with specialized knowledge, and since machine language has little relation to drawing information, there is a risk of input errors, and a numerical control device is required. The machining information to be processed is much larger and more complex than the drawing information of the workpiece, so it takes a considerable amount of time to create a program. The drawback was that the program had to be created offline in advance.

As a countermeasure to this problem, there is a method of automatically programming processing information using drawing information and some supplementary information, but even in this case, since a dedicated language system is used, it takes a considerable amount of time to master the language. Programs are generally created offline because they require skill and a specialized programmer, and ultimately the machining information must be converted into a language that can be read by the numerical control device. Moreover, the same procedure has to be followed whether the machining drawing is simple or complex, which has the disadvantage that a program that is originally easy to create becomes complicated.Also, there is a method to overcome these disadvantages. There is also a method of inputting all the machining information directly into the computer via the console keyboard, but even in this case, the final machining shape must be sequentially developed for each machining element based on the tool, and the developed machining information must be This machining information input work is quite complex because it has to be entered in the order of machining, and even if the same machining appears several times on the drawing, the machining information for each machining element must be input several times. The problem was that the information input operation was complicated and there was a risk of inputting incorrect information, and it took a considerable amount of time to input the information.

An object of the present invention is to provide a control method for a numerically controlled machine tool that classifies the final machining shape shown in the drawings into predefined specific machining contents, and inputs machining information using the machining contents as a unit. The object is to eliminate the above-mentioned conventional drawbacks.

Next, the configuration of an embodiment of the present invention will be explained with reference to FIGS. 2 to 10.

If we classify the machining contents of the workpiece based on the machining drawings by system, the machining configuration, that is, the final machining shape shown in the machining drawings, can be determined by a drill, etc., as shown in Figures 2 and 5, for example. It is classified into any number of machining shapes corresponding to the fish machining mode using a cutter, the nine-line machining mode using a cutter such as an end mill, and the surface machining mode using a cutter such as a face mill. There are several processing units for each processing mode, for example, in the case of the fish processing mode, each processing unit for processing the workpiece W using a cutter CT such as a drill shown in 1A to iH in Fig. 5 and 1A to 1H in Fig. 4, and line processing. In the case of mode, each machining unit for machining the workpiece W using a cutter OT such as an end mill shown in 2A to 2 machining in Fig. 6 and 2A to 2I in Fig. 5, and in the case of surface machining mode, 3A to 2 in Fig. 3
3G, and each processing unit for processing a workpiece W using a cutter CT such as a face mill shown in FIGS. 3A to 3G.

Next, a numerical control method corresponding to each piece of processing information classified in this way will be specifically explained.

FIG. 7 is a system block diagram of the numerical control device in this embodiment, in which a ROM 3 and a dynamic RAM 4 which are storage elements are connected to the pass line 2 from 0PUi, and a DMA controller 5 and a device controller F roller 6 are connected to the pass line 2 from 0PUi. , a console section 9 consisting of a display controller 7 and a keyboard controller 8, an expansion input/output path controller 10, a single step controller 11, and an interrupt logic 12 are connected to the above 7 via the line 2, respectively.

Next, the operation of this embodiment will be explained.

When the power switch is turned on to the numerically controlled machine tool configured in this way, the system first performs an initialization operation to clear all the equipment, stores the initial values in the random access memory RAM4, and then displays them via the display controller 7. The functional information (hereinafter referred to as a menu) stored in the read-on memory ROM 3, in this case each machining mode of fish machining, line machining, and surface machining, is displayed on the display device 113 as shown in FIG. 7A. When the operator presses the menu key of the keyboard 14 corresponding to the menu display according to the purpose, if the operator presses the key corresponding to the fish processing mode, the screen 1A in FIGS. 3 and 4 is displayed.
- Each processing unit corresponding to 1H is displayed on the display device 15 as shown in Fig. 7B, and when the key corresponding to the line processing mode is pressed, the processing units corresponding to 2A to 2F in Figs. 3 and 5 are displayed. Each machining unit is displayed on the display device 113 as shown in FIG. 7C, and when the key corresponding to the surface machining mode is pressed, each machining unit corresponding to 5A to 3G in FIGS. is displayed on the display device 13 as shown in the seventh figure.

With the display device [1113 displaying the processing units for each mode of point, line, and plane], the operator can select the processing unit in the fish processing mode, for example, "
When you press the menu key corresponding to "Drill Hole Machining",
The display device 13 displays the data information of the trill hole machining unit as shown in FIG. When the corresponding menu key is pressed, the data information of the line center machining unit is displayed on the display device 15 in accordance with the functional operation requirements, as shown in the text section in Fig. For example, when a menu key corresponding to "Face Mill/l/" K is pressed, the data information of the face mill processing unit is displayed on the display device 13 as shown in the text section of FIG. 10 according to the functional operation request.

Next, in the data information display state shown in FIGS. 8 to 10, numerical data corresponding to each piece of information is displayed in message order in the
When inputting via the keyboard 14 as shown in the underlined portion in FIGS. Settings are automatically made as shown by the two underlined lines in FIG. 10, and each motor 15 is driven according to this data, tools are exchanged, and cutting progresses.

In this example, there are six processing modes: point, line, and plane.
However, it is possible to add any mode such as three-dimensional machining or single-acting machining in which all machining information is input individually without classification, as well as to group machining modes into other arbitrary systems. Can be classified and subclassified.

Next, the effects of the present invention will be explained.

The present invention uses a numerically controlled machine tool that is controlled by a pre-stored program and input numerical information to sequentially major and minor classify the machining contents of a workpiece by system.
By setting input numerical information corresponding to the machining shape of the workpiece determined at least in the final minor classification, the machining conditions stored in advance corresponding to the numerical values of each machining shape are read out, and according to the machining conditions. A control method for a numerically controlled machine tool that processes a workpiece.

As a result, the present invention allows the use of a language that is used on a daily basis without using a special language system when inputting machining information of a workpiece to the numerical control device. Since the creation of the program is completed by simply answering these questions in sequence, even ordinary workers without specialized knowledge can easily create the program. Each machining element, its tool, cutting conditions, machining order, etc. are automatically programmed by simply inputting data corresponding to the drawing information with which the operator is most familiar, so input data for machining information is extremely small.
Therefore, even during automatic operation, the machining information for the next workpiece can be input directly to the numerical control device on the machine, and it is possible to almost certainly prevent erroneous input of machining information to the program. .

[Brief explanation of the drawing]

Fig. 1 is a workpiece processing classification diagram of a conventional embodiment, Fig. 2 is a workpiece processing classification diagram of an embodiment of the present invention [, Fig. 3 is a detailed classification diagram thereof, and Fig. 4 1A to 1H]. are 1A to 1H in Figure 3.
2A to 2F are explanatory diagrams of each processing unit in the fish processing mode corresponding to 2A to 2F' in FIG. 3.
5A to 3G correspond to 3A to 3G in FIG. 3, and are explanatory diagrams of each machining unit in the round surface machining mode. FIG. Figures 1 to 10 are explanatory diagrams showing display states of each processing unit in this embodiment. 1...CPU 2...Pass line 6...ROM 4...RAM6
...Device controller 7...Display controller 8...Keyboard controller 9...
Console section 15...display device 14.
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- Expedited Procedural Amendment B Test) July 30, 1981 Mr. Kazuo Wakasugi, Commissioner of the Patent Office, Indication of Case Ma':; Published in 6th year t1 Relationship with Case No. 1 Goken C-3 Kidney tkikan% person 4, agent 5, date of amendment order s order%rr7ゝ%12
'? B6, The number of inventions increased by the amendment 7, The subject of the amendment is within the scope of the amendment, 髇向＾′山畢c,＞ν町” - 魇8, Contents of the amendment (1) In the specification, page 10, No. 4 "Figure 5 2A to 2F correspond to Figure 6 2A to 2F" written in lines 5 to 5 will be corrected to ``Figure 5 corresponds to Figure 3.'' (2) In the specification, "Fig. 6 6A to 3G correspond to 3A to 3G in Fig. 3" written in page 10, line 6 to line 7, is replaced with "Fig. 6 corresponds to 3A to 3G in Fig. Correct it to ``in the figure.'' 83

Claims (1)

[Claims] In a numerically controlled machine tool that is controlled by a pre-stored program and input numerical information, the machining contents of the workpiece are sequentially majorly and minorly classified by system, and at least the machining of the workpiece determined in the final minor classification is performed. Numerical control characterized in that by setting input numerical information corresponding to the shape, machining conditions stored in advance corresponding to the numerical values of each machining shape are read out, and the workpiece is machined according to the machining conditions. How to control machine tools.