JPH0423009A - Nc automatic programming device - Google Patents

Abstract

PURPOSE:To output the sizes and the number of sheets of sheet material having a high yield by computing and selecting the size having the highest yield among plural registered sheet material sizes with a device which takes plural prescribed drawing shapes out of a sheet material work. CONSTITUTION:A prescribed shape and the desired number of pieces are inputted by a keyboard input means 3, a coordinate input means 4, etc. Then an arithmetic unit 1 calculates the total area of a sheet material work and the remaining area excluding plural designated shapes by reference to plural sheet material work sizes registered in a register part. Then the unit 1 selects and decides the work size having the highest yield and the number of sheets of sheet material of the decided size. Based on the display of the decided and outputted size of the sheet material and the number of sheets of sheet material, the sheet material is easily and surely prepared when many pieces of designated shapes are taken out.

Description

Detailed Description of the Invention (Industrial Application Field) This invention utilizes a computer to convert figures drawn on a figure display device into NG (numerical control device) data.
The present invention relates to automatic programming devices.

(Prior Art) FIG. 3 is a schematic diagram showing a general example of an automatic NC programming device using a computer.

In the figure, (1) is an arithmetic unit that is the central part of a computer, (2) is a graphic display device that displays characters and figures,
(3) is a keyboard, which is an input device for characters, numbers, etc.
4) is a coordinate manual means such as a mouse, (5) is an NC data output device, and (6) is an NG tape that outputs NG data.

Further, FIG. 4 is an explanatory diagram showing a state when a large number of figures manually created by a conventional NC automatic programming device are taken out. In the figure, (7) shows the plate workpiece that is to be cut in large numbers, (8) and (9) are the gaps X and Y between the figures that have been cut out in many pieces, and (10) is the remaining area after cutting out many pieces.

Further, FIG. 5 is an explanatory diagram showing a case where the required number of pieces cannot be placed on the designated plate work (7) and two plate works, for example, are required.

Next, the operation will be explained. When taking multiple pieces,
First, input the plate workpiece (7) as shown in Figure 5(a), and then enter the required number of shapes (1 piece) that you want to make in large numbers as shown in Figures 5(b) and (c). (12 pieces)
When the gaps (8) and (9) between the shapes are manually filled, the state of multi-piece machining is displayed on the drawing display device (2), and as shown in FIG. work(
7) If it does not fit, a large number of the remaining three pieces will be taken on the second plate work, and the remaining area (10) after taking the large number of pieces will be generated in the second plate work. become.

(Problems to be Solved by the Invention) When a conventional NC automatic programming device takes out a large number of pieces, as described above, it is inconvenient that it is difficult to know which plate material size has the optimum yield as a result of taking out a large number of pieces. In addition, if the number of figures cannot be arranged on one board size, even if the yield for the first board size is optimal, the yield deteriorates as the number remaining to be arranged on the second board decreases. There was a drawback that the amount of remaining plate material increased, resulting in poor yield.

This invention was made in order to eliminate the above-mentioned drawbacks, and when making a large number of pieces, if you specify the required number of figures, it will display the plate material size with the best yield and output the number of plates at the same time. The purpose is to obtain an automatic programming device.

C) Means for Solving Problem C) The NC automatic programming device according to the present invention is an NC automatic programming device that takes out a large number of predetermined figures from a plate workpiece, and includes a registration means that registers in advance a plurality of sizes of the plate workpiece. , a calculation means that calculates the remaining area and number of the registered board workpieces based on the input of the required number of shapes, and outputs the size and number of board workpieces with a good yield by comparing the calculated remaining areas. It is equipped with an output means.

(Function) The NC automatic programming device of the present invention, when taking a large number of pieces, when the required number of figures is specified, the calculation means selects the size with the highest yield among the board sizes not registered in the registration means, The size and number of sheets are output and displayed by the output means.

(Example) An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows an example of display on the graphic display device (2) obtained by this embodiment, and FIG. b) is a display example in which the required number of pieces for multiple pieces of a certain figure is inputted (
13) and the display result (14) when it is determined that the plate material "1" in the same figure (a) has the best yield as a result of the calculation described later during multi-piece machining, and the display result (14) in the same figure (c). ) shows a display example (15) in which the required number of plates was set to 12, and the display result (lO) when it was determined that three plates of plate material "2" had the highest yield.

Figure 2 shows C (not shown) in the arithmetic unit (1) shown in Figure 3.
An operation flowchart diagram based on PU is shown, and the following description will be made according to this flowchart. First, as shown in FIG. 1(a), the arithmetic unit (1) has a memory in which a plurality of sizes of plate workpieces are registered in advance, and when multi-piece cutting is started (S]), The registered board size is displayed on the graphic display device (2) (S2), the previously created shape for multiple pieces is called up (S3), and then the required number of pieces for multiple pieces is input (S4). (See Fig. 1 (b) and (c)), calculate the remaining area after removing a large number of pieces from the No. of all registered board sizes (see all size data (17) in Fig. 2), and calculate the remaining area for each size No. Then, data on the remaining area and the number of sheets (see data (step 8) in the figure S2) is stored in the memory (55 to S8).

After completing multiple pieces of all board sizes, compare the remaining area,
Displaying the plate size with the smallest remaining area (higher yield rate), the number of plates, and the multi-piece production state (S9), (5
10) (Display example (14) in Figure 1 (C)).

(See (16)). Note that when the plate size is displayed, it is possible to change the plate size and enter and change the gap between workpieces. In addition, in Figure 1, if a large number of pieces of the same shape are cut, the result of the board size will differ depending on the number of pieces required.For example, as shown in Figures 1(b) and (c), the required number of pieces is 9. In the case of , one of the plates r1) has the highest yield, and if the required number is 12, three of the plates [2)
The results show that the yield rate is the highest for 300 sheets.

Incidentally, in the above embodiment, a multi-chip arrangement is used as an example, but it goes without saying that the present invention can also be applied to an automatic programming device having nesting (board cutting), and the same effect can be obtained.

[Effects of the Invention] As described above, according to the present invention, if all board size data is registered in advance and the required number is specified when taking multiple pieces,
The size and number of plates with the best yield are automatically displayed, making it easier to prepare plates during actual work (processing), minimizing the disposal of leftover plates, and providing comprehensive production management with high yields. It has the effect of

[Brief explanation of the drawing]

FIGS. 1(a) to (C) show NG according to an embodiment of the present invention.
An explanatory diagram showing an example displayed on an automatic programming device, FIG. 2 is a flowchart diagram, FIG. 3 is a schematic diagram of the NG automatic programming device, and FIG. The explanatory diagrams and FIGS. 5(a) to 5(C) are explanatory diagrams of the operation of the conventional example. (1)...Arithmetic device (2)...Graphic display device (3)...Keyboard (4)...Coordinate manual means (5)...NC data output device (6)...NC Tape (7)...Plate work (lO)...Remaining area (12)...Example of registration display of plate size (13),
(15)...Example of display of the required number of pieces for multi-piece machining of figures (14), (16)...Example of display results of plate materials with good yield and the number of strokes.The same reference numerals in each figure are the same - or equivalent. Show parts.

Claims (1)

[Claims] In an NC automatic programming device that takes a large number of predetermined figures from a plate workpiece, there is a registration means that registers in advance a plurality of sizes of the plate workpiece, and a remaining area of the registered plate workpiece based on input of the required number of figures. 1. An automatic NC programming device comprising: a calculation means for calculating the number of workpieces; and an output means for comparing the calculated remaining areas and outputting the size and number of workpieces with a good yield.