JP2810480B2 - Data input device for bending machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial application field) The present invention relates to a data input device of a bending machine.

(Background Art) Bending machines such as press brakes have abutment gauges that are positioned back and forth with respect to upper and lower dies that are moved up and down and separated from each other. The plate material is bent at an arbitrary angle by abutting one end against the abutting gauge and moving the upper and lower molds closer to each other.

In this kind of bending machine, for example, in a bending process such as box bending, a bending process for shape processing must be determined, and a die and an abutment gauge must be controlled so that predetermined processes are sequentially reproduced.

As an example of a conventional process data input method, there is an example of directly inputting data for an axis for abutting gauge control (abutting axis... L axis) and axis data for a die control (a depth axis... D axis) to a process number. is there. In addition, 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 process number is input in association with the L-axis data and the bending angle. Furthermore, in order to respond to recent automatic processing,
An example of an automatic programming device integrated type that uses advanced AI technology to automatically generate all control data only by specifying the product shape and bending order and to generate process display data that is referenced during bending processing is there.

(Problems to be Solved by the Invention) However, in the conventional data input method in which the axis control data is directly associated with each process, the input data can be used as it is as the control data. For inputting, it is necessary to input data in consideration of all conditions such as a mold, a plate thickness, and elongation, and there is a problem that the input operation is troublesome and time-consuming.

In the method of inputting the L-axis data and the bending angle in association with the process number, the elongation is taken into account when determining the gauge control position, and when the work is bent before the hitting gauge, In addition, there is a problem that the calculation must be performed using a trigonometric function in accordance with the length of the flange between each bending point and each bending angle, and the calculation must be performed one by one using a calculator.

Furthermore, in the case where only the product shape and bending order are specified and the control data is obtained fully automatically thereafter, it is generally convenient and easy to use, but it is necessary to input the product shape one by one even for products with simple shapes. However, there is a problem that the bending process for simple bending is cumbersome and increases the apparatus cost.

Therefore, an object of the present invention is to provide a data input device of a bending machine capable of performing an easy and quick input operation without increasing the device cost.

[Means for Solving the Problems] The present invention for solving the above problems has a butting gauge positioned above with respect to an upper and lower mold that is vertically moved toward and away from each other. In a data input device of a bending machine for bending one end of a plate material interposed between the dies against the butting gauge and causing the upper and lower dies to approach each other to bend the plate material to an arbitrary angle, A process data storage means for storing a data input sequentially for each process, by associating a striking dimension from a bending position to the striking gauge with a bending angle, and requiring a function operation to input the striking dimension. At the time, following the designation of the data writing position, the operation is performed following the designation of each flange dimension and each bending angle from the butting gauge to the bending position. Abutting dimension calculating means for automatically calculating the dimensions up to and transferring the calculation result to a designated position in the process data storage means; and A control data generating means for generating NC data for axis control is provided.

Also, in the execution of the calculating means, the reference figure in the calculation state is not displayed.

Further, in parallel with the abutting dimension calculating means, the developed dimension calculating means for calculating the product expanded dimension includes a required tonnage calculating means for calculating the total bending tonnage, and an upper metal necessary for extracting the work after bending. Appropriate calculation support means such as multi-upper-limit calculation means for calculating the distance between the blades of the mold and the lower mold, and taper gauge position calculation means for calculating the abutting gauge position when performing taper bending are attached. .

(Operation) In the data input device of the bending machine according to the present invention having the above-described configuration, the dimension from the bending position to the abutment position and the bending angle are input into the process number in correspondence with each other. When a dimension is set, the dimension can be input without considering the elongation, and the L-axis data can be generated by considering the elongation later. 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 the data input is extremely simple, so that the cost of the device can be reduced.

Further, when the dimensions are obtained, if there is a processed portion between the butting gauge and the abutting gauge at the bending position, the abutment is calculated by the abutting dimension calculating means, so that the dimension can be easily input.

Further, if an operation supporting means is appropriately attached, normal data input operation can be performed without delay.

(Example) Hereinafter, an example of the present invention will be described.

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

The data input device 1 of the present embodiment has an operation panel 2 to which an operation signal input unit 3 is connected.

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

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

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

The process data storage unit 5 stores process data in which abutment dimensions and bending angles are associated with process numbers. Here, the butting dimension refers to the length of the work (product) from the bending position to the butting gauge (back gauge), and is a value in which elongation is not considered.

The butting dimension calculation unit 6 and the butting dimension calculation data storage unit 7 are activated based on an operation signal of the operation panel 2 when there is a portion already bent between the bending position and the butting gauge position, The trigonometric function is calculated while performing a predetermined display on a window provided on the screen of the CRT8,
The butting dimension is calculated.

The process data storage unit 5 is connected to an elongation percentage calculation unit 9.

The elongation rate calculating section 9 gives a correction value of elongation to the abutment dimension with respect to the process / abutment dimension / bending angle data finally stored in the process data storage section 5, and applies this to the abutment gauge position ( (L-axis data).

An NC data generator 10 is connected to the elongation percentage calculator 9, and a data output unit 11 connected to an NC device is connected to the NC data generator 10.

The NC data generator 10 obtains D-axis data by giving mold data and plate thickness to the bending angle, and obtains L-axis data and D
The axis data is made to correspond to NC data, which is output to the NC device.

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

First, the process data input screen 8A (sixth
(Refer to the figure)) and abutment dimension X for process numbers 1, 2, 3, ...
(See Step 1 in FIG. 5) and the bending angle can be input.

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

A specific input example will be described. FIG. 4 (a) is a perspective view of the product We, and FIG. 4 (b) is an explanatory diagram showing a cross-sectional shape thereof.
Numbers 0 to 6 indicated by circles in FIG. 4B indicate end points or bending points. FIG. 5 is an explanatory view of steps 1 to 5 for bending the product. In the step 1, 12 indicates an abutting gauge, and 13 indicates an upper die (punch). W ₀ indicates the front of the _{work, W 1, W 2, W} 3, W 4 were processed in each step 1,2,3,4 workpiece to be machined.

The product We shown in FIG. 4 (a) has a cross-sectional shape as shown in FIG. 4 (b).
As shown by the numbers of the marks, FIG.
The product We can be obtained by performing a bending process as shown in FIG.

Therefore, in the process data input screen 8A shown in FIG. 6A, the abutment dimension X, for example, 10 shown in the process 1 in FIG. 5 is input corresponding to the process number 1, and the bending angle 135 is input. . The bending angles in this case are all plus (+) signs.

Next, in the second step, the cursor 14 is set to a predetermined position in order to input the abutment dimension X for the step number 2.

However, here, as shown in step 2 of FIG. 5, the dimension x has a point that has already been bent between the bending position and the butting gauge position. There must be.

In such a case, the necessity of the calculation is determined in step 303 of FIG. 3, and the process proceeds to step 305 as necessary.

In step 305, as shown in FIG. 6 (b), the cursor 14 is set on the screen position of the data to be calculated.

Therefore, when screen switching is performed in step 306, step 3
At 07, a screen 8B for abutting dimension calculation as shown in FIG. 6 (c) is set.

In the next step 308, the numbers 1, 2,.
Next, the flange dimensions and the bending angle are input, and the computation conditions shown in FIG. The operation state of the work is the same as the state shown in step 2 of FIG.

Then, in step 309, the butting dimension X is calculated by the butting dimension calculating section 6 as X = 10 · cos (180−135) + 30 = 37.07. In step 310, the calculation result is shown in FIG. As shown, it is set at the cursor 14 position. Also, at this time, since the bending angle −135 has been input to the screen 8B, this value is transcribed as a plus (+) sign at the bending angle position on the screen 8A. As described above, step 2 in FIG.
Data input up to is completed.

The calculation state as shown in FIG. 7 should not be displayed on the screen 8B.

The reason is that there is no necessity when the display as shown in FIG. 5 is made on the screen 8A, and when the display is made twice, misunderstanding tends to occur due to the positional relationship. Also,
This is because even if the process display as shown in FIG. 5 is not made on the screen 8B, since the worker is imagining the same state, the image may be inconsistent and confused.

In Steps 3 and 4 in FIG. 5, the same data is input to Steps 1 and 2 in Step 302 because the work W is only inverted.

Finally, in step 4, in step 303, the calculation unit of the trigonometric function is determined, and the process proceeds to step 305 and thereafter, where FIG.
The screen shown in FIG. 6 (g) is obtained using the screen 8B shown in FIG. 6 (f) for the screen 8A shown in FIG.

In the calculation screen 8B of FIG. 6 (f), the calculation as shown in FIG. 8 is performed, and X = 10 + 30 · cos (180−135) + 50 = 81.21 is obtained.

In step 304, the input of all the processes is completed, and the data input is completed.

After that, the elongation rate calculator 9 generates L-axis data for the input data X shown in FIG. The NC data generation unit obtains D-axis data from the bending angle, generates NC data, and outputs the NC data through the data output unit 11.
Output to the device.

The elongation is determined according to the bending angle from the material of the work, the plate thickness, and the mold conditions.

Further, the D-axis data can be searched from the table data according to the bending angle according to the work material, the plate thickness, and the mold condition.

Therefore, the configurations of the elongation percentage calculator 9 and the NC data generator 10 may be very simple.

As described above, in the data input device of the bending machine according to the present embodiment, the process data including the process, the abutment dimension, and the bending angle can be easily and quickly input by the procedure shown in FIG. 3, and the device can be simplified. Can be configured.

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

In the above embodiment, an example in which the present data input device is used alone is shown. However, by switching and using another data input device shown in the conventional example, it is possible to appropriately use the data input device according to the convenience of the user or according to the product shape. May be used properly.

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

[Brief description of the 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 a data input operation unit of an operation panel thereof, and FIG. 3 is a flowchart showing a data input method of the data input device. FIG. 4 (a) is a perspective view showing an example of a product, FIG. 4 (b) is an explanatory diagram showing a cross-sectional shape of the product, FIG. 5 is an explanatory diagram of a process for bending the product, FIG. FIG. 6 is an explanatory view of a process data input screen and an abutment dimension calculation screen, and FIGS. 7 and 8 are explanatory views of a calculation state. DESCRIPTION OF SYMBOLS 1 ... Data input device 2 ... Operation panel 3 ... Operation signal input part 4 ... Screen control part 5 ... Process data storage part 6 ... Striking dimension calculation part 7 ... Temporary striking dimension calculation data temporary storage part 8 ... CRT 9 ... Elongation percentage calculator 10 ... NC data generator 11 ... Data output unit 14 ... Cursor X ... Abutment size

Claims (3)

(57) [Claims] An abutting gauge positioned back and forth with respect to an upper and lower mold which is vertically moved toward and away from the upper and lower molds, and one end of a plate material interposed between the upper and lower molds abuts against the abutting gauge. In a data input device of a bending machine that bends the plate material to an arbitrary angle by moving the upper and lower molds closer to each other, a striking dimension and a bending angle from a bending position to the striking gauge are provided for each process number. Corresponding, step data storage means for storing data sequentially input for each step, and when a functional operation is required when inputting the butting dimensions,
Following the designation of the data writing position, each flange dimension from the butting gauge to the bending position and the operation of each bending angle are operated, and the dimension from the bending position to the butting gauge is automatically calculated. Abutment dimension calculating means for transferring data to a designated position in the process data storage means, and control data creation for creating NC data for each axis control based on the process data finally stored in the process data storage means A data input device for a bending machine, characterized by comprising means. 2. A data input device for a bending machine according to claim 1, wherein a reference figure in a calculation state is not displayed in execution of said calculation means. 3. An apparatus according to claim 1, wherein said expanded dimension calculating means for calculating a product expanded dimension, a required tonnage calculating means for calculating a total bending tonnage, and a workpiece after bending are arranged in parallel with said abutting dimension calculating means. Appropriate calculation support means such as multi upper limit calculation means for calculating the distance between the blades of the upper and lower dies required for extraction, and taper gauge position calculation means for calculating the butting gauge position when performing taper bending A data input device for a bending machine.