JP2510371Y2 - Press brake - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial field of application) The present invention has a punch and a die, and a plate material interposed between these dies is relatively moved toward and away from both dies. The present invention relates to a press brake that bends as it moves.

(Prior Art) Generally, as a control system of the press brake as described above, a direct mode is called
A method of directly commanding the separation position, and a method called an angle command mode, in which mechanical parameters (including mold shape and dimensions) are adapted to bending conditions based on the angle command, and the control position of the mold is automatically calculated. There is.

In the latter method, if bending conditions such as plate material to be bent, plate material, and tensile strength are input and machine parameters are set in advance, the control position of the mold is automatically set after the command of the bending angle. It is calculated and automatically bent.

The angle command mode and the direct mode can be selected on the operation panel by a switch operation, and can be appropriately selected and used depending on the operator's convenience.

Therefore, conventionally, in order to make the above angle command mode operable, the die shape dimension data is manually input every time the die is changed.

(Problems to be Solved by the Invention) However, since the data input of the die shape dimension as described above is a manual operation, it is difficult to input the data and an input error occurs. In particular, in recent sheet metal working, since a high-mix low-volume production method is adopted, the number of times the die is changed and the number of times the die shape dimension is input is large, and the operation is considerably troublesome. .

Further, in recent years, there has been a demand for using information other than the shape and dimension as mold information, and in order to meet this demand, it is necessary to input a considerably large amount of data, which is a burden on the operator.

For example, in order to perform highly accurate bending, the punch tip R
And die shoulder radius are important parameters. In addition, even if the molds have the same shape and dimensions, some errors may be included depending on the manufacturing numbers. Therefore, it is desired to input a correction value for the errors. Furthermore, I want to enter various information in order to manage the mold organically.

Therefore, the present invention provides a press brake capable of automatically inputting a sufficient amount of information about a die mounted on a machine, and performing higher precision, higher bending and die management. The purpose is to provide.

[Structure of the Invention] (Means for Solving the Problems) In view of the conventional problems as described above, the present invention is provided with upper and lower molds for bending a plate material, and the upper and lower molds approach each other. In a press brake including a control device for controlling separation, an IC chip that stores mold information that defines the mold content such as the mold shape and size and that can input a usage time or number of times is used. R / that can be installed in the mold and read the mold information of the IC chip and transfer it to the control device.
It is provided with a W head.

(Embodiment) Referring to FIG. 1, a press brake 1 embodying the present invention is provided with a cylinder device 35 on an upper portion of a C-shaped frame, and a punch 9 is provided below the cylinder device 5 via a ram 7. The die 13 is fixed, and the die 13 is fixed on an apron 11 extending in the left-right direction (the direction orthogonal to the paper surface in the drawing) over the entire surface of the frame 3.

In the press brake 1 of this example, the punch 9 is moved toward and away from the die 13 by the cylinder device 5, and the plate material W interposed between the two dies (the punch 9 and the die 13) is moved as shown in FIG. It is to be bent.

An information carrier 15 is provided on the side of each mold 9 and 13 to indicate information about each mold. In this example, the carrier 15 is assumed to be composed of an IC chip.

A control board 17 is provided on a side portion of the frame 3, and a reader (R / W head) 19 for reading information of the IC chip 15 is provided on the control board 17 via a retractable electric wire 21. Connected.

As shown in FIG. 3, the information read from the IC chip 15 by the R / W head 19 is the converter in the control panel 17.
It is sent to 23, converted into a signal, and transferred to the NC device 25. The NC device 25 is connected to a CRT 27 as a display device, and can appropriately display information stored in the IC chip 25 and other information. The same applies to the case where the NC device 25 is a personal computer that processes various information.

FIG. 4 is an explanatory diagram of the information 29 stored in the IC chip 15.

As shown in the figure, in this example, the information 29 includes, for each die 13, the shape, dimensions, material, die (set) number, die number, manufacturing date, and control number.

From the above, in the press brake 1 of this example, the IC chip
The information 29 stored in 15 is transferred to the NC device 25 via the converter 23.
The NC device 25 can appropriately refer to the information 29 to perform a high-level bending process, and can manage the mold.

As shown in FIG. 5, the R / W head 19 is connected to the controller 31.
It is possible to drive and control the R / W head 19 to approach the molds 9 and 13 and automatically read the information of the IC chip 15 before the start of processing.

FIG. 6 is a block diagram of a brake control device showing an information processing system.

In the figure, the brake control device 33 is a bending condition input unit.
35 and a bending data calculation unit 37, the calculation unit 37,
A mold information storage unit 39 and a machine parameter storage unit 41 that stores other mechanical constants are connected.

The mold information storage unit 39 inputs / outputs information from the converter 23 via the carrier data input / output unit 43, and stores or outputs the information shown in FIG. 4 for each punch 9 and die 13. is there.

The bending data calculation unit 37 applies the mold information 29 and machine parameters to the bending conditions input from the bending condition input unit 35, and calculates the control position of the punch 9 in the angle instruction mode.

The control position calculated by the bending data calculation unit 37 is sent to the numerical control unit 45, from which control data is output to the actuator drive unit 47, and the cylinder device 5 is driven.

From the above, in the press brake 1 of this example, the dies 9,13
Since the information 29 stored in the IC chip 15 of the above is taken into the NC device 25 and can be used in the bending data calculation unit 37, it is not necessary to manually input the shape and dimension data of the molds 9 and 13, and R / W
Since the information can be easily input with the head 19 and the information 29 can be properly set, a highly accurate control position can be calculated.

Further, since the information 29 can be set variously, it is possible to perform mold management together. For example, it is possible to integrate the usage time or the number of times and send it back to the IC chip 15 via the R / W head 19.

As described above, in the present example, since the mold can be identified, even an inexperienced person can easily understand the information content without making a mistake in selecting the mold (punch / die). In addition, it is also possible to support ATC, which is aimed at shortening processing time and unmanning. In addition, the burden of the amount of information on the software of the NC device can be greatly reduced, and the work efficiency can be greatly improved.

[Effects of the Invention] As can be understood from the above description of the embodiments, in short, the present invention includes upper and lower molds for bending a plate material and controls approach and separation of the upper and lower molds. An IC chip (15) capable of storing mold information defining mold contents such as shape and size of the mold and inputting a usage time or number of times in a press brake including a control device for controlling the mold.
Is provided in the die, and an R / W head (19) capable of reading the die information of the IC chip (15) and transferring it to the control device is provided.

As is clear from the above configuration, in the present invention, the IC mold 15 is provided in the upper and lower molds.
The mold information, which defines the mold contents such as the mold shape and size, is stored, and the usage time or the number of times is input. Further, an R / W head 19 capable of reading the information stored in the IC chip 15 and transferring it to the control device is provided.

Therefore, it is possible to read the mold information stored in the IC chip 15 by the R / W head 19 and transfer it to the control device, and it is easy and easy to input the mold information such as the shape and size of the mold to the control device. In addition to being able to perform accurately, it is possible to know the usage time and the number of times of use of the mold, and it is possible to easily manage the life of the mold.

[Brief description of drawings]

FIG. 1 is a side view of a press brake according to an embodiment of the present invention, FIG. 2 is an enlarged explanatory view of a mold part, FIG. 3 is a block diagram showing a configuration of a detection system, and FIG. 4 is an IC chip. FIG. 5 is an explanatory diagram of information to be stored, FIG. 5 is an explanatory diagram of an automation system for driving an R / W head, and FIG. 6 is a block diagram of a brake control device. 1 …… Press brake 9 …… Punch 13 …… Die 15 …… IC chip 19 …… R / W head 29 …… Information

Claims (1)

(57) [Scope of utility model registration request] 1. A press brake comprising upper and lower molds for bending a plate material, and a control device for controlling approach and separation of the upper and lower molds. Memorize mold information that defines the mold contents,
Further, an IC chip (15) capable of inputting the usage time or the number of times is provided in the mold, and an R / W head (19) capable of reading the mold information of the IC chip (15) and transferring it to the control device is provided. A press brake characterized by