JPH07108324A - Method for bending and device therefor - Google Patents

Abstract

PURPOSE:To dispense with the input operation of metallic die data by a worker, to automatically input the metallic die data in a control device, to eliminate input errors, and to improve the operability and safety. CONSTITUTION:Metallic die data, which is stored in a writable storage means provided in the die 23 and is required for bending, is read out by a reading means 25 provided on the machine side or outside the machine; the actual metallic die data thus read out is transmitted to a control device 31; and, after a bending data is prepared or various compensations are made in the control device 31 based on the actual metallic die data, a bending working is performed on a work W.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention, when bending a work, bends the work by creating bending data or making various corrections based on actual mold data. TECHNICAL FIELD The present invention relates to a bending method and an apparatus thereof.

[0002]

2. Description of the Related Art Conventionally, when a desired bending process is performed on a work with a bending device such as a press brake, an operator uses, for example, a punch tip R, an angle, a punch as die information before the bending process. Many mold data such as pressure resistance and length are input to the control device, and the work is bent based on this mold data.

[0003]

By the way, in the above-mentioned prior art, if an operator mistakenly makes an input error when inputting mold data into the control device, for example, the mold may be damaged. There was a problem. Also, it takes a lot of time to input the mold data.

In order to solve the above problems, an object of the present invention is to eliminate the need for an operator to input mold data and to automatically input the mold data to the control device to eliminate input errors. Another object of the present invention is to provide a bending method and an apparatus therefor, which are improved in operability and safety.

[0005]

In order to achieve the above object, the present invention provides mold data necessary for bending, which is stored in a writable storage means provided in the mold.
It is read by the reading means provided on the machine side or outside the machine, the read actual mold data is transmitted to the control device, and this control device creates bending data or makes various corrections based on the actual mold data. The bending method is characterized by performing the bending process on the workpiece after performing.

Further, according to the present invention, there is provided a bending apparatus which bends a work by reciprocating one of the punch and the die with respect to the other, and is provided on either the punch or the die. Storage means for storing the die data necessary for bending, and reading means for reading the die data stored in the storage means on the machine side or outside the machine and read by the reading means. The bending apparatus is configured to include a bending data or a control device that performs various corrections based on actual die data.

In the bending apparatus, the storage means is provided at the tip of the punch or the lower end of the die, and the reading means is provided at the lower end of the intermediate plate facing the storage means or the tip of the die holder. It is preferable that the storage means is provided on a punch or a die, and the reading means is provided at a position facing the storage means of an external mounting device provided near the folding device. Is.

[0008]

By employing the bending method and the apparatus therefor according to the present invention, the writable storage means provided in the die stores the die means required for the bending. The mold data stored in the storage means is read by the reading means provided on the machine side or outside the machine and transmitted to the control device. In the control device, bending data is created or various corrections are performed based on the actual mold data read by the reading means, and then the work is bent.

Therefore, it becomes unnecessary for the operator to input the mold data, and the actual mold data is automatically taken into the control device by the storage means and the reading means. The safety is improved.

[0010]

Embodiments of the present invention will be described in detail below with reference to the drawings.

Referring to FIG. 10, for example, a press brake 1 as a bending device is composed of a C-shaped side frame 5 standing on both sides of a bottom plate 3 and the like. An upper table 7 connecting the both side frames 5 is fixedly provided on the upper front side of the side frame 5, and a punch P is attached to the lower end of the upper table 7 via an intermediate plate 9.

At a lower position corresponding to the upper table 7, there is provided a lower table 13 which is vertically movable by actuating a fluid pressure cylinder 11 attached to a lower front portion of the side frame 5. Lower table 1
A die D is attached to the upper end of 3 via a die holder 15.

The side frame 5 is formed in a C shape, and the work W or the product after the work W is bent is carried into the side frame 5 in the bending line direction (longitudinal direction of the press brake 1). The gap portion 17 is provided because it needs to come out. A back gauge 19 that is movable in the front-rear direction (left-right direction in FIG. 10) is provided in the gap portion 17 to position the bending line of the work W when the work W is inserted from the front.

With the above-described structure, the work W is placed on the die D and the back gauge 19 is moved in the front-rear direction to position the bending line of the work W. Hit 19 Next, when the fluid pressure cylinder 11 is operated to move the lower table 13 up and down, the work W is bent at a predetermined angle by the cooperation of the punch P and the die D.

The punch P or die D as a die
Is provided with a writable storage means for storing mold data, and an intermediate plate or a die holder as the machine side, or a reading means for reading the mold data stored in the storage means outside the machine. Has been.

For example, as shown in FIG. 2 (A), the punch P is detachably attached to the lower portion of the intermediate plate 9 with a clamp 21. An ID chip 23 as a storage means for storing mold data is stored on the upper right side of the punch P in FIG. 2 (A). A reading sensor 25 as a reading unit is provided at a position of the intermediate plate 9 facing the ID chip 23.

As the die data, the punch tip R,
There are various data such as punch angle, punch height, punch pressure, die length, die V width, angle, shoulder R, height, die pressure, etc., and this die data is pre-input to the ID chip 23 and stored. Has been done.

With the above structure, the I provided on the punch P is
The mold data stored in the D chip 23 is read by the reading sensor 25 provided on the intermediate plate 9 and transmitted to the control device. The mold data stored in the ID chip 23 is rewritable as needed, and the latest mold data is always stored.

Further, as shown in FIG. 2 (B),
An ID chip 23 is provided on the upper end surface of the punch P, and the reading sensor 2 is provided at a position of the intermediate plate 9 facing the ID chip 23.
Even if 5 is provided, the mold data stored in the ID chip 23 is read by the read sensor 25 and transmitted to the control device, as in the above-described configuration.

As shown in FIG. 2 (C), by providing front and back reading sensors 25A and 25B on both sides of the lower portion of the intermediate plate 9, the punch P is moved to the left side in FIG. 2 (C). Or on the right side,
The mold data stored in the ID chip 23 is the reading sensor 25A for the front side or the reading sensor 2 for the back side.
5B can be read.

As shown in FIG. 3, an ID chip 23 and a reading sensor 25 are further provided on the left and right sides of each punch P.
It is also possible to know the length of each punch P by providing.

For example, as shown in FIG. 4, a reading sensor mounting device 27 is provided near the press brake 1.
Are arranged. This reading sensor mounting device 27
Is an opening 27A having an upper opening in which the punch P is stored.
And V groove 27B for mounting and setting the tip of punch P
Is equipped with. As shown in FIG. 4, in the state where the punch P is housed in the opening of the reading sensor attaching device 27, the reading sensor 25 is provided on the side surface of the reading sensor attaching device 27 facing the ID chip 23.

In this way, the punch P is pressed by the press brake 1
The mold data stored in the ID chip 23 is read by the read sensor 25 provided in the read sensor mounting device 27 even when the mold data is stored in the opening of the read sensor mounting device 27 arranged in the vicinity. Will be transmitted to the control device.

As shown in FIGS. 5A and 5B, an ID chip 23 is provided below the die D. A reading sensor 25 is provided at a position above the die holder 15 facing the ID chip 23.

With the above structure, the mold data stored in the ID chip 23 is read by the read sensor 25 and transmitted to the control device.

As shown in FIG. 6, a reading sensor mounting device 29 is arranged near the press brake 1. This reading sensor mounting device 29 is a die D
Is to be stored. The reading sensor mounting device 29 shown in FIG. 6A is provided with an opening portion 29A that is open at the top to accommodate the die D. Therefore,
When the die D is detached from the press brake 1 and stored in the opening 29A, the reading sensor is provided at the upper surface of the bottom plate 29B of the reading sensor mounting device 29 facing the ID chip 23 provided at the bottom of the die D. 25 are provided.

The reading sensor mounting device 29 shown in FIG. 6B is L-shaped, and when the die D is detached from the press brake 1 and stored on the horizontal portion 29C,
A reading sensor 25 is provided at the right side surface position of the vertical portion 29D of the reading sensor mounting device 29 facing the ID chip 23 provided on the left side surface of the die D.

Therefore, the mold data stored in the ID chip 23 provided in the die D is read by the read sensor 25 provided in the read sensor mounting device 29 and transmitted to the control device.

The mold data stored in the ID chip 23 is read by the reading sensor 25. The reading sensor 25 is connected to a control device 31 for controlling the press brake 1, as shown in FIG. An input device 33 such as a keyboard for inputting various data and a display device 35 such as a CRT for displaying various data are connected to the control device 31. As a matter of course, the control device 31 includes a fluid pressure cylinder 11 for vertically moving the lower table 13.
Also, a back gauge 19 for positioning the work W is connected.

Next, a bending method using the ID chip 23 and the reading sensor 25 will be described. First, in the case where the die information manual input work before processing is not performed, it will be explained based on the flowchart of FIG. 7. In step S1, bending shape data such as product data and work data other than die data is controlled by the control device 31. Input from the input device 33.

In step S2, the die data stored in the ID chip 23 provided on the die (punch P or die D) having the above-described configuration is read from the machine side (intermediate plate 9 or die holder 15) or outside the machine. It is read by the reading sensor 25 provided in the sensor mounting devices 27 and 29 and transmitted to the control device 31. In step S3, the control device 31 creates final bending data based on the actual mold data transmitted by the reading sensor 25. In step S4, the work W is bent by operating the press brake 1 based on the created bending data.

The case of manually inputting die information before machining will be described with reference to the flowchart of FIG. 8. First, in step S5, all bending data including die data is controlled by the input device 33 from the control device. Enter in 31. In step S6, the die data stored in the ID chip 23 is read by the reading sensor 25,
Send to the control device 31.

In step S7, bending data is created based on the input bending data and the bending data transmitted from the reading sensor 25. The input mold data of the bending data input in step S8 is compared with the actual mold data read and transmitted by the reading sensor 25, and if the actual mold data matches the input mold data. The work W is bent in step S9.

If the actual mold data does not match the input mold data, step S10 or step S1
Go to 2. Bending data is recreated in step S10, and the work W is bent in step S11. Alternatively, after giving a warning to the operator in step S12, the mold data is displayed on the display device 35 in step S13, and the mold is replaced in step S14.

As an example of recreating the bending data in step S10, as shown in FIG. 9, for example, the distance between the point A on the punch P and the point B which is the tip of the punch P in the left-right direction. When L was measured, L ₁
It was a value. This L ₁ value is stored in the ID chip 23 and is transmitted from the reading sensor 25 to the control device 31. Since the set value L ₀ is input to the control device 31 from the input device 33, when the actual L ₁ and the set value L ₀ are compared by the control device 31, there is a deviation of ΔL.
Therefore, after the controller 31 gives a command to the back gauge 19 to correct the L-axis origin by ΔL, the work W is bent. In addition to the correction of the origin of the L-axis, various corrections such as pressure resistance of the punch P and the die D, parallel correction, crowning correction, and the like are performed.

As described above, the punch P and the die D are provided with the storage means such as the ID chip 23, and the reading sensor mounting device 27 disposed on the machine side such as the intermediate plate 9 and the die holder 15 or near the press brake 1. By providing the reading unit such as the reading sensor 25 outside the machine such as 29, the mold data stored in the storage unit is transmitted to the reading control device 31 by the reading unit. By performing bending processing on the work W after creating bending data and making various corrections based on this mold data, the operator does not need to input the mold data, and the mold data is automatically generated. It is possible to improve the operability and safety as well as to eliminate input errors by being input to the control device.

The present invention is not limited to the above-described embodiments, but can be implemented in other modes by making appropriate changes. In the present embodiment, the example in which the lower table 13 is moved up and down has been described, but it is also applicable to the case where the upper table 7 is moved up and down.

[0038]

As will be understood from the above description of the embodiments, according to the present invention, since the structure is as described in the claims, the memory means provided in the mold is used. The stored mold data is transmitted to the reading control device by the reading means provided on the machine side or outside the machine, and bending work data is created and various corrections are made based on this mold data, and then the work is processed. The bending process eliminates the need for the operator to input mold data, and the mold data is automatically input to the control device to eliminate input errors and improve operability and safety. it can.

[Brief description of drawings]

FIG. 1 is a functional block diagram showing a main part of the present invention.

FIG. 2 is an example diagram in which an ID chip is provided on a punch and a reading sensor is provided on an intermediate plate.

FIG. 3 is an example diagram in which an ID chip and a reading sensor are provided on a punch.

FIG. 4 is an example of a state in which a punch having an ID chip is stored in a reading sensor mounting device having a reading sensor in the vicinity of a press brake.

FIG. 5 is an example diagram in which an ID chip is provided on a die and a reading sensor is provided on a die holder.

FIG. 6 is an example of a state in which a die having an ID chip is housed in a reading sensor mounting device having a reading sensor in the vicinity of a press brake.

FIG. 7 is a flow chart of an example of bending work according to the present invention.

FIG. 8 is a flow chart of an example of bending work according to the present invention.

FIG. 9 is an explanatory diagram of recreating bending data.

FIG. 10 is a side view of a press brake which is an example of the bending process according to the present invention.

[Explanation of symbols]

 1 Press Brake (Bending Device) 7 Upper Table 9 Intermediate Plate 11 Fluid Pressure Cylinder 13 Lower Table 15 Die Holder 19 Back Gauge 23 ID Chip (Memory Means) 25 Reading Sensor (Reading Means) 27, 29 Reading Sensor Mounting Device 31 Control Device 33 Input device 35 Display device P punch D die

Claims (4)

[Claims] 1. A reading means provided on the machine side or outside the machine reads die data necessary for bending, which is stored in a writable storage means provided on the die, and the read data is read. Bending process characterized by transmitting the mold data to the control device and making bending data based on the actual mold data by this control device or making various corrections before bending the work. Method. 2. A bending apparatus for bending a work by reciprocating one of a punch and a die with respect to the other, the bending apparatus being provided in either one of the punch and the die. Storage means for storing necessary data, a reading means provided on the machine side or outside the machine for reading mold data stored in the storage means, and actual mold data read by the reading means. A bending device, comprising: a control device that performs bending data or various corrections based on the bending data. 3. The storage means is provided at the tip of the punch or the lower end of the die, and the reading means is provided at the lower end of the intermediate plate facing the storage means or the tip of the die holder. Item 2. The bending apparatus according to item 2. 4. The storage means is provided on a punch or a die, and the reading means is provided at a position facing the storage means of an external mounting device provided in the vicinity of the bending device. 3. The method according to claim 2,
The bending device described.