JPH03285722A - Data inputting device for bending machine - Google Patents

Abstract

PURPOSE:To easily and quickly input data by providing a stage data storing means to store data of each stage, a stopper arithmetic means to perform functional operation of a stopper dimension and a control data preparing means to prepare an NC data in accordance with stored stage data. CONSTITUTION:A dimension of a bent position to a stopper position and a bent angle are made to correspond to a stage number for input. For example, when this dimension is a dimension on a product We, the dimension can be inputted without considering the elongation and, thereafter, a stopper L axis data can be prepared in a consideration of the elongation A depth D axis data can be obtained automatically from the bent angel. In this way, the input means is simple, a programing device after the data is inputted can be constructed extremely simply and the device cost can be reduced. When a worked part is provided between the bent position and the stopper gage in determinating the above dimension, the stopper dimension operating means assists the determination suitably and the dimension of the stopper can be inputted easily.

Description

[Detailed description of the invention] [Purpose of the invention] (Industrial application field) The present invention relates to a data input device for a bending machine.

(Prior Art) A bending machine such as a press brake has an abutment gauge that is positioned back and forth with respect to upper and lower molds that are moved toward and away from the upper and lower molds, and has an abutment gauge that is positioned back and forth with respect to the upper and lower molds that move toward and away from the upper and lower molds. The plate material is bent at an arbitrary angle by abutting one end against the abutment gauge and moving the upper and lower molds toward each other.

In this type of bending machine, for example, in a bending process such as assembly, it is necessary to determine the bending process for shape processing, and to control the mold and abutment gauge so as to sequentially reproduce the predetermined process.

The conventional process data input method is to directly input the axis data for butt gauge control (butt axis...L axis) and the axis data for mold control (depth axis...D axis) into the process number. There are examples of things that do. Further, since the D-axis data can be automatically calculated according to the mold data and the bending angle, there is an example in which the L-axis data and the bending angle are input in correspondence with the process number.

Furthermore, in order to support recent automatic processing, advanced AI technology is used to automatically generate all control data just by specifying the product shape and bending order, as well as process display data that is referenced during bending. There is an example of an integrated automatic programming device.

(Problem to be Solved by the Invention) However, the conventional data input method that directly corresponds to the axis control button for each process has a simple device configuration because the input data can be used as control data, but the control data In order to input data, it is necessary to take into account all conditions such as mold, plate thickness, elongation, etc.
There is a problem in that input operations are laborious and time consuming.

In addition, in the method of inputting the process number in correspondence with the L tension data and bending angle, elongation is taken into account when determining the gauge control position, and if the workpiece is bent before reaching the stop gauge, , the length of the flange between each bending point and each bending angle must be calculated using trigonometric functions, and there is a problem in that each calculation must be performed manually with a calculator in hand.

Furthermore, although it is generally convenient and easy to use a system that only specifies the product shape and bending order and then obtains control data fully automatically, it is necessary to input the product shape one by one even for products with simple shapes. However, there are problems in that the bending process for simple bending is rather troublesome and the equipment cost is high.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a data input device for a bending machine that allows easy and quick input operations without increasing the device cost.

[Structure of the Invention] (Means for Solving the Problems) The present invention for solving the above problems has an abutment gauge positioned as above with respect to the upper and lower molds that are moved vertically toward and away from the upper and lower molds. In a data input device of a bending machine that bends the plate material at an arbitrary angle by abutting one end of the plate material interposed between the dies against the abutment gauge and moving the upper and lower molds toward each other, each process number a process storage means for storing data sequentially input for each process by associating the abutment dimension from the bending position to the abutment gauge with the bending angle; When,
After specifying the data writing position, it is operated after specifying each flange dimension and each bending angle from the abutment gauge to the bending position, and automatically calculates the dimensions from the bending position to the abutment gauge, and calculates the calculation result. an abutment dimension calculation means for transcribing the data to a specified position in the process data storage means;
The present invention is characterized by comprising control data creation means for creating NC data for controlling each axis based on the process data finally stored in the process data storage means.

Further, during the execution of the calculation means, the reference figure in the calculation state is not displayed.

In addition, in parallel with the abutment dimension calculation means, a development dimension calculation means for calculating the product development dimension includes a required tonnage calculation means for calculating the total bending tonnage, and an upper metal A multi-upper limit calculation means for calculating the distance between the blades of the mold and the lower mold, a taper gauge position calculation means for calculating the abutment gauge position when performing taper bending, and appropriate calculation support means are included. do.

(Function) In the data input device of the bending machine of the present invention having the above configuration, the process number is inputted with the legality and bending angle from the bending position to the abutting position, so that, for example, the above dimensions can be input on the product. When determining dimensions, the dimensions can be input without considering elongation, and L-axis data can be generated later with elongation taken into account. Furthermore, D-axis data can be automatically obtained from the bending angle. Therefore, the input procedure is simple, and the configuration of the programming device after inputting the data can be configured extremely simply, and the cost of the device can be reduced.

Further, when determining the above-mentioned dimensions, if there is a machined part between the bending position and the abutment gauge, the abutment dimension calculating means applies force as appropriate, so that it is possible to easily input the dimensions.

Furthermore, if a calculation support means is attached as appropriate, normal data input work can be carried out smoothly.

(Example) The present invention will be explained in detail below.

FIG. 1 is a block diagram showing a data input device according to an embodiment of the present invention.

The data input device 1 of this example has an operation panel 2, to which an operation signal input section 3 is connected.

The operation panel 2 has a data input operation section 2a as shown in FIG. 2, and an operation switch section (not shown) for operating the bending machine.

The operation signal input section 3 is connected to a screen control section 4, a process data storage section 5, an abutment dimension calculation section 6, and an abutment dimension calculation data storage section 7.

The screen control section 4 is connected to the CRT 8 and controls the display contents of the screen.

The process data storage unit 5 stores process data in which abutting dimensions and bending angles are associated with process numbers.

Here, the butt dimension refers to the length of the workpiece (product) from the bending position to the butt gauge (back gauge), and is a value that does not take elongation into account.

The abutment dimension calculation section 6 and the abutment dimension calculation pig storage section 7 are operated based on the operation signal of the operation panel 2 when there is a part that has already been bent between the bending position and the abutment gauge position, Calculating trigonometric functions while displaying a predetermined display on a window provided on the screen of the CRT 8;
This is to calculate the abutting dimension.

An elongation rate calculating section 9 is connected to the process data storage section 5 .

The elongation rate calculation section 9 calculates the process, abutment dimension, and bending angle data finally stored in the process data storage section 5.
A correction value for elongation is given to the abutment dimension, and this is converted into an abutment gauge position (L-shaped data).

An NC data generation section 10 is connected to the elongation rate calculation section 9, and a data output section 1 connected to an NC device is connected to the NC data generation section 10.

The NC data generation unit 1-0 gives the mold data and plate thickness to the bending angle, obtains the D-axis data, associates the L-axis data and the D-axis data with the process number, generates the NCC data, and converts this into the NC data.
This is what is output to the device.

FIG. 3 is a flowchart 1 showing the process data input method of the data input device.

First, set the process data input screen 8A (see Figure 6) using the slap 301, and enter the abutment dimension possible.

Next, in step 302, process data is sequentially input.

A specific input example is shown below. FIG. 4(a) is a perspective view of the product We, and FIG. 4(b) is an explanatory view showing its cross-sectional shape.

Numbers 0 to 6 indicated by circles in FIG. 4(b) indicate end points or bending points. FIG. 5 is an explanatory diagram of steps 1 to 5 for bending the product. In step 1, 12 indicates an abutment gauge, and 13 indicates an upper die (punch). Wo represents the workpiece before being processed, and w+, W2, w3, and w4 represent the workpieces processed in steps 1, 2.3.4, respectively.

The product We shown in Fig. 4(a) has a cross-sectional shape as shown in Fig. 4(b).
), and when the end points or bending points are determined as indicated by the numbers marked with ○, the product We can be obtained by performing the bending process as shown in steps 1 to 5 in Figure 5. I can do it.

Therefore, on the process data input screen 8A shown in FIG. 6(a), the abutting dimension X1 shown in the process shown in FIG.
Enter. The bending angles in this case are all plus (+) signs.

In the next second step, the cursor]4 is placed at a predetermined position to input the abutment dimension X for step number 2.

However, as shown in step 2 in Figure 5,
For the dimension x, since there is a point (■) that has already been bent between the bending position and the abutment gauge position, a trigonometric function must be calculated.

In such a case, it is determined in step 303 of FIG. 3 whether or not calculation is necessary, and the process moves to step 305 as necessary.

In step 305, as shown in FIG. 6(b), the cursor 4 is placed on the screen position of the data to be calculated.

Therefore, when the screen is switched in step 306, a screen 8B for abutting dimension calculation as shown in FIG. 6(C) is set in step 307.

In the next step 308, number 1 is displayed on screen 8B.
-12... Next, the flange dimension and bending angle are input, and the calculation conditions shown in FIG. 7 are set in the abutment dimension calculation data storage section 7. The calculation state of the workpiece is the same as that shown in step 2 of FIG.

Then, in step 309, the abutting dimension calculating section 6 calculates the abutting dimension X as follows: X = 1-0- cos (1,80-135)
+301 2 -37. 07, and in step 310, the calculation result is calculated as shown in Fig. 6 (
The cursor is set at the 14 position as shown in d). Also, at this time, since the bending angle -135 is input on the screen 8B, this value is transferred to the bending angle position on the screen 8A with a plus sign (+). With the above steps, data input up to step 2 in FIG. 5 is completed.

It is better not to display the calculation state as shown in FIG. 7 on the screen 8B.

The reason for this is that it is not necessary when the display as shown in FIG. 5 is displayed on the screen 8A, and when the display is displayed twice, misunderstandings tend to occur due to the arrangement. Also,
This is because even if the process display as shown in FIG. 5 is not displayed on the screen 8B, the operator imagines a similar situation, which may cause inconsistency in the image and confusion.

In steps 3 and 4 in FIG. 5, the workpiece W is simply inverted, so at step 302] steps 1 and 2.
Enter similar data in .

Finally, in step 4, the calculation part of the trigonometric function is determined in step 303, and the process proceeds to step 305 and subsequent steps, and FIG.
), the screen 8B shown in FIG. 6(f) is used to obtain the screen shown in FIG. 6(g).

On the calculation screen 8B in FIG. 6(f), the calculation shown in FIG. 8 is performed, and X=10+30・cos(180-135)+50=8
1.21 is required.

In step 304, all process inputs are completed and the pig input is ended.

Thereafter, the elongation rate calculation unit 9 generates L-axis data by taking elongation into consideration for the input data X shown in FIG. 6(g). Further, the NC data generation section obtains D data from the bending angle, generates NC data, and outputs it to the NC device via the data output section 11.

The elongation is determined according to the bending angle based on the workpiece material, plate thickness, and mold conditions.

Furthermore, the D-axis data can be searched from table data according to the bending angle, depending on the workpiece material, plate thickness, and mold conditions.

Therefore, the elongation rate calculation section 9 and the NC data generation section 10
The configuration may be extremely simple.

Therefore, in the data input device of the bending machine of this example, process data consisting of process, abutment dimension, and bending angle can be input easily and quickly by the procedure shown in FIG. can be easily configured.

The workpiece width (500) shown in FIG. 4(b) can be used, for example, to calculate the bending tonnage. In this case, a required tonnage calculation means can be appropriately provided in parallel with the calculation section 6 to perform automatic calculation. Further, the L-type may be provided with various calculation means such as a means for calculating a development dimension, a means for calculating a multi-upper limit, and a means for calculating the position of an abutment gauge when performing taper bending.

In the above embodiment, an example is shown in which this data input device is used alone, but it can be used interchangeably with other data input devices shown in the conventional example, depending on the convenience of the user or depending on the product shape. You may use different methods.

[Effects of the Invention] As described above, since the present invention is a data input device for a bending machine as described in the claims, it is possible to reduce the device cost and easily and quickly input data for process control. can be entered.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a data input device according to an embodiment of the present invention, FIG. 2 is a front view of the data input operation section of the operation panel, and FIG. 3 is a flowchart showing a data input method of the data input device. Char 1., Figure 4(a) is a perspective view showing an example of the product, Figure 4(b) is an explanatory diagram showing the cross-sectional shape of the above product, and Figure 5 is an explanation of the process for bending the above product. FIG. 6 is an explanatory diagram of the process data input screen and the one-stop method calculation screen, and FIGS. 7 and 8 are explanatory diagrams of the calculation state. 1... Data input device 2... Operation panel 3... Operation signal input section 4/Screen control section 5 6 5... Process data storage section 6... Abutment dimension calculation section 7... Abutment Touch dimension calculation data storage unit 8...C
RT 9... Elongation rate calculation section 10... NC data generation section] 1... Data output section 14... Cursor X... Abutting dimension

Claims (3)

[Claims] (1) It has an abutment gauge that is positioned back and forth with respect to the upper and lower molds that are moved toward and away from the upper and lower molds, and one end of the plate material interposed between the upper and lower molds is abutted against the abutment gauge, and the upper and lower molds In a data input device of a bending machine that bends the plate material to an arbitrary angle by moving a die close to each other, each process number is associated with an abutment dimension from a bending position to the abutment gauge and a bending angle. , a process data storage means for storing data sequentially input for each process; and when a function calculation is required when inputting the abutting dimension,
After specifying the data writing position, it is operated after specifying each flange dimension and each bending angle from the abutment gauge to the bending position, automatically calculates the dimensions from the bending position to the abutment gauge, and displays the calculation results. abutment dimension calculation means for transcribing to a specified position in the process data storage means; and control data creation for creating NC data for controlling each axis based on the process data finally stored in the process data storage means. A data input device for a bending machine, characterized in that it is equipped with means. (2) The data input device for a bending machine according to claim 1, wherein the reference figure in the calculation state is not displayed during execution of the calculation means. (3) In claim 1, developed dimension calculation means for calculating product developed dimensions is arranged in parallel with the abutting dimension calculation means;
Required tonnage calculation means to calculate the total bending tonnage, multi-upper limit calculation means to calculate the distance between the blades of the upper and lower molds required to extract the workpiece after bending, and abutment when performing taper bending. A data input device for a bending machine, characterized in that it is provided with appropriate calculation support means such as a taper gauge position calculation means for calculating a gauge position.