JPH0313022B2 - - Google Patents

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, machining elements for each machining content of the final shape stored in the drawing, for example, for drilling holes, each machining process such as center machining, drilling machining, and chamfering machining is required. element first
As shown in the figure, it is necessary to develop the tool based on the tool selection, and input the tool movement and machining order corresponding to the cutting shape after converting it into a language that the numerical control device can understand.
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, and when inputting this machining information, a professional programmer takes time to create the 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. This requires skill and a specialized programmer, and ultimately the machining information must be converted into a language that can be interpreted by the numerical control device.
Programs are generally created offline, and even if the machining drawings are simple or complex, the same procedures must be followed, making programs that are originally easy to create complicated. However, in this case, the final machining shape is determined for each machining element based on the tool. This machining information input work is quite complex because it has to be developed sequentially and the developed machining information must be entered in the order of machining.Moreover, even if the same machining appears several times on the drawing, it is necessary to input the developed machining information in the order of machining. The disadvantage is that the processing information for each element must be input repeatedly several times, and the information input operation is complicated and there is a risk of inputting incorrect information, and it also takes a considerable amount of time to input the information. It was hot.

An object of the present invention is to provide a control method for a numerically controlled machine tool that classifies final machining shapes shown in drawings according to predefined specific machining contents, and inputs machining information in units of machining volume contents. Therefore, the object is to eliminate the above-mentioned conventional drawbacks.

Next, the configuration of one embodiment of the present invention is shown in FIGS. 2 to 1.
This will be explained using Figure 0.

If the machining contents of the workpiece based on the machining drawings are categorized by system, the machining configuration, that is, the final machining shape shown in the machining drawings, will be divided into machining modes (dotted lines) as shown in Figures 2 and 3, for example. Surfaces, etc. are graphical elements used when drawing, and these graphical elements are hereinafter referred to as machining modes. It is classified into an arbitrary number of machining shapes corresponding to the surface machining mode using cutters such as face mills, and furthermore, this machining shape is machined by several machining units (tools such as drills, end mills, face mills, etc.) for each machining mode. (hereinafter referred to as a machining unit),
For example, in the case of point machining mode, 1A to 1 in Fig. 3
H, Cutters such as drills shown in Fig. 4 1A to 1H
Each machining unit for machining the workpiece W by CT, in the case of line machining mode, each machining unit for machining the workpiece W by cutter CT such as an end mill shown in 2A to 2I in Fig. 3 and 2A to 2I in Fig. 5, In the case of surface machining mode, 3A to 3G in Fig. 3, 3A to 3 in Fig. 6
It is classified as each processing unit for processing a workpiece W using a cutter CT such as a face mill shown in G.

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 a bus line 2 from the CPU 1, and a DMA controller 5, a device controller 6, and a display. A console section 9 consisting of a controller 7 and a keyboard controller 8, an expansion input/output bus controller 10, a single step controller 11, and an interrupt logic 12 are connected via the bus line 2, respectively.

Next, the operation of this embodiment will be explained.

When the power switch is turned on to a 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 RAM 4, and then displays them via the display controller 7. The function information (hereinafter referred to as menu) stored in the read-on memory ROM3, in this case, each machining mode of point machining, line machining, and surface machining is shown in Fig. 7A.
is displayed on the display device 13 as shown in FIG. The processing units corresponding to 1A to 1H in Fig. 4 are displayed on the display device 13 as shown in Fig. 7B, and when the key corresponding to the line processing mode is pressed, the processing units 2A to 1H in Figs. 3 and 5 are displayed. Each processing unit corresponding to 2F is displayed on the display device 13 as shown in Fig. 7C, and when the key corresponding to the surface processing mode is pressed, the processing units corresponding to 3A to 3G in Figs. Each processing unit is shown in Figure 7D.
is displayed on the display device 13 as follows.

When the operator presses the menu key corresponding to, for example, "drill hole machining" in the machining unit in the point machining mode with the machining units for each mode of point, line, and surface displayed on the display device 13, the display device 13 13, the data information of the drill hole machining unit is displayed as shown in Fig. 8 (character section) according to the functional operation requirements. When you press the corresponding menu key, the display device 13
The data information of the line center machining unit is displayed according to the functional operation requirements as shown in the text section in Figure 9.
Similarly, when the operator presses a menu key corresponding to a machining unit such as "Face Mill" in the surface machining mode, the display device 13
The data information of the face mill processing unit is displayed as shown in the text section of FIG. 10 according to the functional operation requirements.

Next, in the data information display state shown in FIGS. 8 to 10, numerical data corresponding to each piece of information is entered in message order via the keyboard 14 as shown by the single underlined part in FIGS. 8 to 10. The rotation speed of the motor 15, cutting conditions, etc. corresponding to each data are
Using the data stored in advance in the ROM 3, settings are automatically made as shown in the two underlined lines in FIGS. 8 to 10, and each motor 15 is driven and tools are replaced according to each data. Cutting progresses.

In addition, in this example, the machining mode is set to
Although it has been classified into three types: line and surface, it is possible to add any mode such as three-dimensional processing or single-action processing in which all processing information is input individually without classification.
Machining modes can be broadly classified or subclassified according to other arbitrary systems.

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

The present invention provides a numerically controlled machine tool that is controlled by input numerical information from a pre-stored program, which classifies the machining details of a workpiece into a plurality of graphical element classifications, and
Each of the graphical element classifications is further classified into a plurality of single machining shapes, each of the single machining shapes is specified by numerical information regarding the final machining shape of the workpiece, and the above-mentioned A control method for a numerically controlled machine tool that processes a workpiece by determining machining conditions according to numerical values determined when a single machining shape is specified.

As a result, the present invention can input processing information of a workpiece to a numerical control device without using a special language system, and can use a language that is used on a daily basis as is. Since the inquiries are in the form of questions, the creation of the program is completed just by answering these questions one by one, so even ordinary workers without specialized knowledge can easily create the program, and the machining information is By simply having workers input data corresponding to the drawing information with which they are most familiar,
Since each machining element, its tool, cutting conditions, machining order, etc. are automatically programmed, input data for machining information is extremely small. In addition to being able to input data directly into a numerical control device,
This has the effect of almost certainly preventing erroneous input of machining information into a program.

[Brief explanation of drawings]

Figure 1 is a workpiece processing classification diagram of a conventional example.
Figure 2 is a workpiece processing classification diagram of an embodiment of the present invention, Figure 3 is its detailed classification diagram, and Figure 4 1A to 1H.
is an explanatory diagram of each machining unit in the point machining mode corresponding to 1A to 1H in FIG. 3, FIG. 5 is an explanatory diagram of each machining unit in the line machining mode of FIG. 3, and FIG. An explanatory diagram of each machining unit in the machining mode, FIG. 7 and its A to D are system block diagrams of the numerical control device in this embodiment, and FIGS. 8 to 10 show the display state of each machining unit in this embodiment. FIG. 1...CPU, 2...Bus line, 3...
ROM, 4...RAM, 6...Device controller, 7...Display controller, 8...
Keyboard controller, 9...console section,
13...display device, 14...keyboard, 15...motor.

Claims (1)

[Claims] 1. In a numerically controlled machine tool that is controlled by input numerical information from a pre-stored program, the machining contents of a workpiece are divided into a plurality of graphic element classifications,
Each of the graphical element classifications is further classified into a plurality of single machining shapes, each of the single machining shapes is specified by numerical information regarding the final machining shape of the workpiece, and the above-mentioned A control method for a numerically controlled machine tool characterized by determining machining conditions in accordance with numerical values determined when a single machining shape is specified, and machining a workpiece.