JPS61269708A - Supply system for working program - Google Patents

Abstract

PURPOSE:To automate a generating process for working program data efficiently by providing a drawing input means for a user drawing, a program generating means for a working program, and a supply means for the generated program. CONSTITUTION:When the drawing of a product to be worked that a user wants to make is sent from the user by post or through a communication circuit, it is inputted to a drawing data input part 11 firstly. The 1st arithmetic part 13 displays the drawing on a CRT 39 on the basis of input drawing data and a CPU 19 judges whether its an elevation is required or not and performs specific preprocessing before a working program is generated. The 2nd arithmetic part 15 converts the drawing data sent from the arithmetic part 13 into a working program for each working machine that the user possesses and this working program is outputted to a supply part 17. The supply part 17 supplies the working program generated by the arithmetic part 15 to the user.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a system for creating a machining program based on a machining drawing created by a user and supplying the nib program to the user.

[Technical background of the invention and its problems] In order to increase the effective operating rate of the processing machines delivered to users, processing machine manufacturers, etc., as part of their assist work,
Based on the drawings of the product that the user wants to process, we create a processing program for the product using the delivered processing machine and supply it to the user.

Conventionally, creation of a machining program has been performed through the following steps: creating a development diagram of the product, calculating coordinate positions for the processing machine, coding the machining program, creating a machining program chip, checking the machining program chip, trial machining, and actual machining. In this series of steps, machining program chive creation and machining program chive check are automated (
However, other procedures, especially the creation of development diagrams of products that require processing time, trial calculation of coordinate positions for processing machines, and coding processing, were performed manually, and until they were computerized. The reality is that it takes a lot of time to create a machining program. However, on the other hand, in order to computerize these processes that have not yet been computerized, simply computerizing the processes that have traditionally been done manually and processing them with a program may require a huge amount of processing programs, and this may lead to problems. However, there is a problem in that this leads to an increase in the cost of creating machining program data.

For this reason, there has been a strong desire for a system that efficiently automates the process of creating machining program data.

[Object of the Invention] The present invention has been made in view of the above, and an object thereof is to provide a machining data supply system that efficiently realizes automation of the creation process of machining program data.

[Summary of the Invention] In order to achieve the above object, the present invention provides a drawing data input means for inputting data related to a drawing of a product that a user wants to process, and a drawing data input means for inputting data related to a drawing of a product that the user wants to process, The gist of the present invention is to include a program creation means for creating a processing program for the product using a processing machine, and a supply means for supplying the created program to the user.

[Embodiments of the invention] Hereinafter, the present invention will be explained in detail using the drawings.

FIG. 1 shows a machining program supply system according to an embodiment of the present invention. In the figure, a drawing data input section 11 is used to input a drawing (including other data related to the drawing) of a product to be processed that has been created by the user. The first calculation section 13 performs predetermined preprocessing on the drawing input by the drawing data input section 11 before creating a machining program. The second calculation unit 15 creates a machining program based on the drawing preprocessed by the first calculation unit 13. Further, the supply section 17 supplies the machining program created by the second calculation section 15 to the user.

The drawing data input unit 11 may input drawings transmitted from the user via a communication line, input drawings sent by mail or the like from the user, etc.
Various methods are possible.

Specifically, as a method using a communication line, there is a method of inputting drawing data serially transmitted as a modulated signal using a modem such as an acoustic converter. This method is particularly effective when Yuna owns a so-called CAD system, and simply converts the drawing data (including machining dimensions, machining conditions, etc.) created by this CAD system into serial/parallel data. It has the advantage that it can be directly supplied to the first arithmetic unit 13. Further, as another method using a communication line, there is a method in which a drawing transmitted by facsimile is input as a modulated signal. That is, this is a method in which a drawing transmitted and output by a user by facsimile is converted into serial/parallel data without image reproduction on the receiving side and is directly supplied to the first calculation unit 13.
It has the same advantages as using the modem described above. On the other hand, methods for inputting drawings sent by the user include, for example, a method of capturing an image of the drawing using a camera, a method of using a drum scanner, and the like.

The first arithmetic unit 13 performs the processes described below, such as deleting data parts unnecessary for the machining program and calculating expanded views, as necessary, on the input drawing, and is composed of, for example, a microcomputer. be done. Note that if the input drawing does not require developed drawing processing, which will be described later, when creating a machining program, the first calculation unit 1
3, the drawing is immediately output to the second calculation section 15.

Note that the first arithmetic unit 13 includes a central processing unit (CPU) 1
9. Input boat 21. Output boat 23. ROM 25 which stores processing programs. A disk 26 serves as a user database that stores information such as the type and nature of the processing machine delivered to each user, processing conditions for the product input via the drawing data input section 11, and the like. The configuration includes a RAM 27 that temporarily stores various data.

The second calculation unit 15 creates a unique machining program tailored to the user based on the input drawing, taking into account conditions such as the type of processing machine delivered to the user and the individual habits of the processing machine. It is composed of, for example, a microcomputer. Specifically, the second calculation unit 15
Central processing unit (CPU)29. Input boat 31. Output port 33, ROM 35 which stores processing programs; stores the type of processing machine delivered to each user and the processing conditions for the product input through the drawing data input section 11. Disk 36 as user database. RAM3 that temporarily stores various data
7.

Note that the first arithmetic unit 13 and the second arithmetic unit 15 include
A common CR, T39 is provided for the output boat 23.33, and a common keyboard 41 is also provided for the output boat 23.33 and the input boat 21.31.

The supply section 17 supplies the machining program created by the second calculation 81115 to the user, and has a function opposite to that of the drawing data input section 11. That is,
In order to transmit the machining program to the user via a communication line or mail, the supply unit 17 performs necessary processing, for example, when using a communication line, performs parallel/serial conversion processing on the machining program. In addition, in the case of mailing, processing for creating a machining program is performed.

Next, the operation of this embodiment will be explained using the processing flowchart of the first arithmetic unit 13 shown in FIG. 2 and the processing progress diagrams shown in FIGS. 3 to 8.

As a premise of the explanation, the drawing sent by the user is the third
As shown in the figure, the processing machines owned by the user include a turret punch, blanking machine,
Use a press brake.

First, the first calculation section 13 converts a drawing into a CRT 3 based on the drawing data inputted from the drawing data input section 11.
Display on 9. (Step 100). The worker checks the displayed drawing and uses the keyboard 41 as necessary.
Operate to correct or delete unnecessary lines, erroneous lines, dimensions, etc. when creating a machining program. This process is
This preprocessing is especially essential when drawings sent by the user by mail or facsimile contain various notes, etc.

In step 110, it is determined whether or not it is necessary to create a developed diagram based on the drawing checked by the operator, and if necessary, the process proceeds to step 120, and if unnecessary, the second calculation unit 15
Start creating a machining program. That is, for example, if the product has a relatively simple shape and the processing conditions such as the width of the bending allowance are not specified, the developed view can be calculated by storing the processing conditions as a pattern in advance. Since the machining program for the product can be created directly without any need for processing, there is no need for subsequent processing in the first arithmetic unit 13.

Steps 120 to 210 are development processing for first analyzing the machining process using a turret punch when creating the product shown in FIG.

First, in step 120, an origin O to be the development reference point for the product is set, and an XY coordinate system is set for the origin, and the process proceeds to step 130. In step 130, in order to obtain the developed lengths wx and wy in the X and Y directions with respect to the origin O, first, the apparent developed length W
Calculate x and Wy. Specifically, regarding the cross-sectional view of the product in the X direction and Y direction as shown in Figure 4,
This is the sum of the lengths of the sides that make up each of them. That is, in the X direction, WX = (a + b + C1r, and in the Y direction, Wy = (aa + bb + cc
).

As a result, as shown in FIG. 5, the approximate circumferential dimensions of the product when developed in one stroke can be obtained.

In step 140, the apparent developed lengths WX, wy obtained in step 130 are corrected for developed length errors at the folded portion of the product to determine true developed lengths WX, wy in the X and Y directions. Specifically, the product of the curvature αR and the bending angle θ at the bent portion (curved portion correction length) LBt
(i=1.2.3...) is determined for each part of the bent part of the product, and the developed lengths WX and WV are calculated using the following formula using this curved part correction length.

WX −(a +b +C) −(LB+ +1−s
2 +LB3) WV-(aa+bb+cc)-(LB+o1LB Blind 2
+LB13) In step 150, the development length W obtained in step 140 is
Based on X and wy, the external dimensions of the material required for product processing are obtained (Figure 6).

Next, in steps 160 to 210, the dimensions Kx and Ky of the notch in each corner of the product in the X and Y directions are calculated. That is, first input the individually designated notch pattern at each corner of the product (Step 160), and enter the notch dimensions Kx, Ky in the X direction and Y direction at each corner.
seek. Specifically, if the notch size to be determined is to be determined, for example, for the notch portion at the origin O in FIG. 3, the calculation formula will be as shown in the following formula.

Kx −a +LBI X (pattern coefficient) Ky−a
a+ LB to

When this notch development processing is completed, the optimum mold required for machining using the blanking shear of each corner from the material shown in Fig. 6 is selected from the molds owned by the user. .

Steps 220 to 330 are processes for calculating the positions of the round hole Z+ and square hole Z2 of the product shown in FIG. .

First, in step 220, the position coordinates (3x1, BY+, BV2 in FIG. 7) of the round hole z1 relative to the origin O are input. Next, in step 230, the position of the round hole with respect to the origin 0 when the product is unfolded is corrected based on the input position coordinates, and based on this result, the round hole is machined using a turret punch press. Select a suitable mold (step 24.0). Specifically, the round hole positions are determined by the following equations: the round hole position BZ in the X direction, and the round hole positions 8z 10 and 3z 11 in the Y direction, taking into account the curved portion correction length (see FIG. 8).

Bz　-(a+BX+)　-LBt Bz 10-(aa+By+)-La+.

[3z 11 = (aa+3y 2 ) −LB +
.

On the other hand, the same applies to the processing of the square hole Z2. Based on the positional coordinates (not shown) of the square hole Z2 with respect to the origin O, the position of the square hole with respect to the origin O when the product is unfolded is calculated, and the result is The most suitable mold to be used for processing the turret punch press is selected based on the following (steps 250 to 27).
0).

Proceeding to step 280, it is checked whether there are any other parts to be machined using the turret punch press, and if there are no parts, a developed drawing is simulated and based on the results, it is confirmed that there are no changes or corrections ( Step 320.330
) Proceed to step 340. On the other hand, if there are other parts to be machined, use the same process as described above to determine the machining position relative to the origin O, then correct the position at the time of development, and then select the mold, as described above. Step 320.330
The process then proceeds to step 340 (step 29
0-310). Note that in step 330, the change,
If there are modifications, step 160. Step 220. The process returns to either step 250 or step 290.

In step 340, data such as the type of press brake, type of mold, die holder, auxiliary equipment, etc. of the press brake delivered to the user is read from the user database on the disk 26, and the process proceeds to step 350.

Step 350 is a process of calculating the length of the bending die. Specifically, in FIG. 4(A), the length in the Y direction perpendicular to the dimension a from the origin in the X direction is taken as TV, and in FIG. 4(B), the length in the Y direction from the origin is perpendicular to the dimension aa Let the length in the X direction be Tx, compare the two, and let the longer one be the mold reference length To. Furthermore, based on this mold standard length To, the required mold length T is determined by the following formula.

T=To−(curved portion correction length×2) Step 360 is a process of selecting the mold shape, that is, the upper mold and the lower mold. Specifically, for the upper mold, the shape shown in FIG. 5 obtained in step 130 is compared with the mold shape owned by the user, and one that does not interfere is selected.

In addition, as for the lower mold, the optimum one is selected from among the lower molds owned by the user based on the plate thickness and curvature R of the product. In addition,
The length of the lower mold is the same as the required mold T.

Proceeding to step 370, the bending order using the upper mold and lower mold selected in steps 350 and 360 is calculated. Specifically, for example, with the selected upper and lower molds, when mounting the mold, the bending order is determined in principle starting from the one closest to the origin O, taking into consideration the relationship between the parts and their surroundings together with the machine data. However, when determining this order, the bending order is changed as necessary to prevent interference and the like. Note that the bending is started from the shorter side of the lengths Tx and Ty, and the bending direction is as follows:
Always prioritize the same plane and direction.

In step 380, a simulation display of the bending operation is performed on the CRT 39 using the mold and bending order obtained in steps 340 to 370. In this case, the bending position of the simulation is aθ~ in Fig. 4.
The angle expressed by bbθ is displayed as 1/2 with respect to the tip of the mold.

In step 390, the position of the bank gauge is calculated according to the simulation operation in step 380. Specifically, depending on the order of simulation in step 380, the distance (for example, the dimensions) from the end face, or from the bent outer surface if the end face has already been bent, to the respective next bending position. The distance obtained by subtracting the curved portion correction length Lsi)/2 from the curved portion is calculated as the pack gauge dimension in the order of steps.
) Also, in step 400, step 380
In this process, each bending angle (aθ to bbθ) of the product shown in FIG. 4 is calculated based on the machine data to be used according to the simulation operation in FIG. 4, and outputted on the axis.

After completing the processing in steps 390 and 400, a simulation is performed based on these results, and the results are displayed on the CRT 39 (step 410).

After this, proceed to step 420 and proceed to steps 100-4.
The development diagram data for each model obtained through the processing in step 10 is stored in RAM.
27, and sequentially output to the second calculation unit 15 via the output boat 23 in order to create a machining program based on this development view data.

In the second calculation unit 15, the development drawing data from the first calculation unit 13 is added to the user database stored in the disk 36, various processing conditions inputted through the drawing input unit 11]6 - Convert into a machining program for each processing machine owned by the company, and output this machining program to the supply section 17.

Note that if it is determined in step 110 of FIG. 2 that development is not necessary, a machining program is created based on the product drawing sent from the user via the first calculation section 13. That is, in this case, since the machining program for a similar product stored in the disk 36 can be applied, the machining program is created without performing the expansion process in the first calculation unit 13. This reduces the time required to create machining programs.
This makes it possible to improve efficiency.

Then, the processed data output section 17 supplies the side nib program to the user as appropriate using the above-described method or the like.

It should be noted that the present invention is not limited to the above-mentioned embodiments, and can of course be applied to other embodiments.

[Effects of the Invention] As explained above, the Canadian nib O-gram supply system according to the present invention allows the user to obtain a processing program for a product that the user desires to process, a drawing of the product obtained from the user, and a drawing of the product that the user owns. Because it can be created based on information about the processing machine, etc., it does not require experts compared to conventional manual work. In addition, unnecessary or redundant processes can be deleted as appropriate from conventional manual operations, so the processing program does not become huge, making the process of creating a machining program more efficient, and as a result, reducing the amount of time required to create it. Time can be shortened.

[Brief explanation of the drawing]

Fig. 1 is an example of the configuration of a machining program supply system according to an embodiment of the present invention, Fig. 2 is a processing flowchart for explaining the operation of the system, and Figs. 3 to 8 illustrate the operation of the system. It is a figure for explaining. 17... Drawing data human power N313... First calculation section 15... Second calculation section 17... Supply section 19.
...CPtJ 21...Input boat 23
...Output boat 25...ROM26...
Disk 27...RAM29...CPU
31...Input boat 33...Output boat 35...ROM36...Disk
37...RAM39...CRT
41...Keyboard Figure 3 zl Figure 4 (A) Figure 5

Claims (2)

[Claims] (1) A drawing data input means for inputting data related to the drawing of the product that the user wants to process, and a processing program for the product using the processing machine owned by the user based on the input data and predetermined information about the user. A machining program supply system comprising: a program creation means for creating a program; and a supply means for supplying the created program to the user. (2) The program creation means has a function of determining whether or not it is necessary to create a development diagram of the product, and when it is determined that it is necessary, it obtains the development diagram of the product and based on the development diagram, and when it is determined that it is unnecessary. 2. The machining program supply system according to claim 1, wherein the machining program is created based on input data without obtaining a development view.