JPH0290207A - Method for inputting parts figure - Google Patents

Abstract

PURPOSE:To improve operability in the input of a parts figure by using vertically and horizontally set magnifications and the vertical and horizontal sizes of a defined parts figure when the vertical and horizontal magnifications of the defined parts figure are set up to expand or contract the parts figure to define it. CONSTITUTION:A numerical control(NC) device provided with an automatic programming function has an automatic programming part 11, an NC control part 12, a graphic display device (CRT) 13, a keyboard 14, and switching units 15, 16. When the vertical and horizontal magnifications Vs, Hs of a defined parts figure(PFG) are set up, the defined PFG is expanded or contracted by using the set magnifications Vs, Hs and the vertical and horizontal sizes of the defined PFG to define the PFG. Consequently, a parts figure having vertical/ horizontal size ratio different from that of a defined parts figure can be rapidly defined.

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a part shape input method, and in particular to an NC data creation device that defines a part shape and creates NC data for processing according to the specified part shape. This invention relates to a part shape input method.

<Prior art> A dialog screen and a function key (soft key) screen are displayed on a display device according to each step of a plurality of data input steps, and a function key (soft key) corresponding to a specific function on the function key screen is displayed. There is an automatic programming system that executes processing according to the function when pressed, and creates an NC program using data input by referring to an interactive screen.

Referring to FIG. 5, such an automatic programming system includes the following steps: (1) the first step of selecting execution of "automatic programming";

(2) 2nd step to select data to be input (step to be executed next), (3) 3rd step to select material quality, (4) 4th step to set surface roughness, (5) ) 5th step to select the drawing format; (6) 6th step to input the material shape and its dimensions.

(7) Seventh step of inputting the part shape and its dimensions, (
8) 8th step of inputting machine origin and turret position, (9
) Ninth step to select the processing process.

(19) Tenth step of tool selection and tool data input.

(11) 11th step to determine machining conditions, (12) 12th step to input cutting direction, (13) 13th step to input cutting range, (14) 14th step to input whether there is an area to be cut with the same tool. , (15) Step 15 of tool path calculation (NC data creation). According to the following steps, predetermined question screens (dialogue screens) are sequentially displayed on the display screen, and the operator inputs the necessary data according to the questions using the keyboard. The NC program (NG data) is created using all the input data. The collection of data input up to the 14th step, in other words, the collection of data necessary to create the NC program, is called a family program.

In the part shape input step (seventh step) of the NC data creation device, as shown in FIG. While looking at the design drawing, use the arrow keys (↑, →, ↓) on the keyboard to follow the part shape.

←t/l-,,7,"x square, Q), thread cutting key, chamfering key (C key), rounding key (R key), grooving key, corner cutting key to adjust the shape of the part. Then, each time you input one part shape element using the arrow keys, a question about the dimensions of that element will be displayed, so if you input the dimensions obtained from the design drawing in response to the question, the display screen will show A graphic image PFG of the shape element is drawn together with the symbol PFS of the shape element.

For example, ↑, →, ↓, ←, me, %, 7. When you input a straight line element by pressing the arrow key indicated by 'm, you will be asked for the diameter value (DX) or X coordinate value (X) of the end point of the straight line, Z coordinate value (Z) of the end point, etc. Input the dimensions written on the drawing in response to the question.

When the input of all the shape elements is completed, the entire shape element symbol group PFS of the part shape and the whole part shape figure PFG are drawn on the display screen.

<Problem to be solved by the invention> By the way, after inputting all shape elements, the dimensions of the defined part shape are multiplied by n or l/n in the vertical and/or horizontal direction.
You may want to enlarge or reduce the image. In such a case, in the conventional method, all shape elements must be input from the beginning of the part shape input step (step 7 in FIG. 5). There has been a problem in that it takes a lot of time to input component shapes with different dimensional ratios.

From the above, an object of the present invention is to provide a part shape input method that can quickly define a part shape having a different vertical or horizontal dimensional ratio from a defined part shape.

Means for solving the problem〉 The above section consists of the process of setting the vertical and/or horizontal magnification for the defined part shape, and the process of enlarging the defined part shape using the set magnification. Alternatively, the problem can be solved by a reduction process.

Effect> When the vertical and/or horizontal magnification Vs, Hs is set for the defined part shape PFG (Fig. 1), the set magnification Vg, Hs and the defined part shape PF
The defined part shape PFG is enlarged or reduced using the vertical and horizontal dimensions of G to define it.

<Example> Fig. 1 is a block diagram of an NC device equipped with an automatic programming function that implements the present invention, Fig. 2 is an external view of a CRT&MDI device, Fig. 3 is a flowchart of the processing of the present invention, and Fig. 4 (
a) and (b) are examples of drawing the part shape after setting the magnification according to the present invention.

In FIG. 1, 11 is an automatic programming section, 12 is an NC control section, and 13 is a graphic display device (C
RT), 14 is a keyboard, and 15° and 16 are switching units. Although the switching units 15 and 16 are shown as switches for convenience of explanation, they can actually be switched by software processing.

The automatic programming section 11 and the NC control section 12 have a microcomputer configuration, and include a processor, a control program memory (ROM), and a RAM.

The graphic display device 13 and the keyboard 14 are integrally constructed as shown in FIG.
It is called the I device. As shown in FIG. 1, the display screen 13a is divided into an interaction screen display area TIM and a soft key area FIM, and keys 13c, 13c, etc. are provided corresponding to each soft key area, and the keys are pressed. This allows the function displayed in the corresponding soft key area FIM to be input. In the keyboard 14, 14a is a selection key 14b for NC mode/automatic programming mode.

Contains arrow and numeric keys. Note that 14c is an input key.

The component shape input process according to the present invention will be explained below according to the flowchart shown in FIG.

By operating the key 14a (FIG. 2) on the keyboard 14,
The switching units 15 and 16 connect the graphic display device 13 and the keyboard 14 to the automatic programming section 1.
Used for 1. Thereafter, the programming function of the automatic programming section 11 performs the processing up to the sixth step interactively, similar to the flow of the conventional method shown in FIG. Then, in the sixth step, when the soft key "Next Page" is pressed, a part shape input processing routine is activated.

A part shape input screen is displayed and the part shape can be input.

Thereafter, the operator specifies the component shape elements one by one along the contour of the component in the same manner as in the conventional input method shown in FIG. 6 to specify the component shape. That is, ↑, →, ↓, ←, l, \,
Press the arrow keys 14b indicated by f and z to input a straight line element. Then, the processor displays a question M0 such as the diameter value (DX=) at the end point Pi (i=1t2...) of the straight line and the Z coordinate value (Z=) of the end point at the lower part of the display screen 13a. Therefore, the operator is question text M. Enter the dimensions written on the drawing for the

Then, the processor stores the part shape element (straight line element) and the coordinate value of the end point of the straight line in the RAM, and draws the symbol PFS of the shape element and the graphic image PFS of the shape element on the display screen 13a (step 101).
.

Next, the operator refers to the graphic image PFS drawn on the display screen 13a and determines whether all shape elements have been input (step 102). If not, the operator repeats the process from step 101. Note that the graphic image PFS in FIG. 1 is a drawing of the part shape defined by the above processing.

On the other hand, if all shape elements have been input, the operator can judge whether the drawn part shape is the desired part shape or not. If it is not necessary to change it, press the soft key "Next Page" to draw the next dialog screen,
From then on, automatic programming processing continues.

On the other hand, if it is necessary to make a change, the operator can press the soft key "Magnification setting J SEY" (soft key area FI in Figure 1).
(see M) is pressed. Then, the processor displays a magnification setting question M on the display screen 13a, and the operator responds to the question by inputting predetermined values into the vertical magnification Vs and horizontal magnification Hs, and presses the input key 14C (step 1o4).

Then, the processor converts the coordinate values (x, z) of the end point Pi of each linear element stored in the RAM into the coordinate values (X'z') of each end point of the desired part shape using the following equation, and stores the converted coordinate values (X'z') in the RAM. Then, using the coordinate values (x', z'), the original part shape is enlarged or reduced in the vertical or horizontal direction and drawn on the display screen 13a (step 1).
06). Incidentally, at this time, the symbol PFS of the shape element is the same as that of the original part shape.

In Fig. 4(a), the vertical magnification Vs is set to 1.5 times and the horizontal magnification Hs is set to 2°0 times with respect to the original part shape shown in Fig. 6.
This is a drawing example obtained by the above process, and FIG. 4(b) is a drawing example similarly obtained by setting the vertical magnification Vs to 2.0 times and the horizontal magnification Hs to 0.5 times. Note that by setting the vertical magnification Vs and the horizontal magnification Hs to be the same, it is possible to define a component shape similar to the original component shape.

Once the desired part shape is drawn, the part shape definition ends.

The above describes the part shape input method when creating new NC data, but using a family program that has already been created and registered, the vertical and horizontal directions of the part shape in the family program can be input. It is also possible to define the desired part shape by changing the magnification.

<Effects of the Invention> According to the present invention, when a vertical and/or horizontal magnification is set for a defined part shape, the set magnification and the vertical and horizontal directions of the defined part shape are Since the configuration is configured to enlarge or reduce the defined part shape using the directional dimension, it is possible to save the trouble of re-inputting the shape elements from the beginning.

It is possible to quickly input a part shape having a different dimension ratio in the vertical or horizontal direction with respect to a defined part shape, thereby improving the operability of inputting a single part shape.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of an NG device equipped with an automatic programming function that implements the present invention, Fig. 2 is an external view of a CRT & MDI device in the NG device, Fig. 3 is a flowchart of the processing of the present invention, and Fig. 4 (a) ) and (b) are examples of drawing the part shape after setting the magnification according to the present invention, and FIGS. 5 and 6 are explanatory diagrams of conventional part shape input. 11... Automatic programming section, 12... NC control section, 13... Graphic display device, 13a... Part shape input screen, 13b... Soft key screen, 14... Keyboard

Claims (1)

[Claims] In a part shape input method in an NC data creation device that defines a part shape and creates NC data for processing according to the defined part shape, When a horizontal magnification is set, the defined part shape is enlarged or reduced using the set magnification and the vertical and horizontal dimensions of the defined part shape. Part shape input method.