JPH11319951A - Automatic learning device for bender - Google Patents

Abstract

PROBLEM TO BE SOLVED: To rapidly and correctly acquire the drive data for bending by coupling an encoder to a bender, outputting the quantity of rotation transmitted from a rotation quantity transmission member in the pulse mode, and measuring the bending angle of a member to be bent to reduce the error of the bending angle. SOLUTION: A bender bends a transferred member 500 to be bent by a bending member 300, and rotates the bending member 300 by a drive part 400. A tip part of the member 500 to be bent is held at one end part of the rotation quantity transmission member 900, an encoder shaft is coupled with the other end part to transmit the bending rotation quantity of the member 500 to be bent to a shaft of an encoder 800. The encoder 800 is coupled with the bender, and the quantity of rotation transmitted from the rotation transmission member 900 is outputted in the pulse mode to measure the bending angle of the member 500 to be bent. The bending angle of the member 500 to be bent is automatically measured in advance, and the drive data of the bender on the desired bending angle is stored, and the member 500 to be bent is bent making use of the drive data acquired in bending the same member to be bent in advance.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic learning device for a bending machine, and in particular, automatically measures a bending angle of a bent member in advance, and accurately measures the bent member by using the measurement data. The present invention relates to an automatic learning device for a bending machine that can be bent at a distance.

[0002]

2. Description of the Related Art In general, many automatic bending machines for bending a member to be bent at an angle preset according to the application are known. Since such an automatic bending machine grips and mostly rotates the conveyed bent member at a predetermined position, the bending member for bending the bent member, and the bending member Is provided. Therefore, the bending angle of the bent member is determined by the driving data applied to the driving unit. Such drive data is
Even if the same bending angle is obtained, it depends on the shape and material of the member to be bent. Therefore, in order to bend a specific bent member at a predetermined angle, it is necessary to specify drive data applied to the drive unit.

In order to specify such drive data, conventionally, predetermined drive data is manually applied to a drive unit, and a bending angle of a bent member to be bent is manually measured.
If the measured angle does not match the preset angle, the driving data is changed again. The process is repeated until the angle at which the bending is measured matches a preset angle. Therefore, when the specified angle matches the preset angle, the applied drive data is used as drive data for bending the specific bent member.

However, such a conventional technique has a troublesome problem that it is necessary to measure a bent angle by hand in order to obtain optimum driving data. In addition, since the angle is measured manually, there is a disadvantage that the bending angle is inaccurate. In addition, there is much time loss in obtaining drive data for bending a specific bent member to obtain drive data through manual operation.

[0005]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an automatic learning apparatus for a bending machine which can solve the above-mentioned drawbacks and can automatically obtain drive data.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, a feature of the present invention is to provide an automatic learning device for a bending machine, which comprises a bending member for bending a transferred bent member, and A bending machine having a drive unit for rotating and driving a bending member, and one side end grips the end of the bent member and the other side end is coupled to an encoder shaft to bend the bent member. A rotation amount transmitting member for transmitting the rotation amount to the shaft of the encoder and the bending machine, and the rotation amount transmitted from the rotation amount transmitting member is output in a pulse form to measure a bending angle of the bent member. An automatic learning device for a bending machine including an encoder.

Still another feature of the present invention is that in the bending machine learning apparatus, a bending member provided with a bending member for bending the transferred bent member and a drive unit for rotating and driving the bending member. A position sensing unit that is removably fixed to the machine and the rotating body of the bending member, includes a plurality of position sensing sensors, and the position sensing sensor applies a sensing signal for a bending position of the bent member to the control unit; An automatic learning device for a bending machine includes a bending angle measuring unit that measures a bending angle of a member to be bent using a sensing signal applied from the position sensing unit.

[0008]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. Prior to the description of the present invention, an embodiment of a bending machine related to the present invention will be described first. FIG. 1 is a perspective view of a bending machine according to Korean Patent Application No. 95-16975 filed earlier by the present applicant,
FIG. 2 is an exploded perspective view of a main part of the bending member shown in FIG. 1, and FIG. 3 is a side view of FIG. Although the preceding bending machine is a bending machine for bending a cutting blade, the automatic learning device of the present invention does not necessarily limit the member to be bent to the cutting blade. As can be seen from the drawing, the preceding bending machine includes a guide member 200 for guiding the bent member 500 and a bending member 300 for bending the transferred bent member 500, and
It comprises a drive section 400 for driving this bending member.

The guide member 200 comprises a guide nozzle 201 having a hollow structure so that the member to be bent 500 that has passed through the cutting die portion is safely transferred to the bent member 300 side. The guide nozzle 201 is connected to the bent member 50.
0 is provided with a guide passage 203 large enough to freely pass through. The bending member 300 includes a bending fixed body 310 provided on plate-shaped support frames 301a and 301b disposed to face each other up and down with an interval enough to position the guide nozzle 201, and a bending rotation. The body 320a, 320b is provided. The bending fixed body 310 is a member to be bent 5
It comprises a bent main body 313 having a guide groove 311 large enough to allow 00 to pass through, and support ring portions 315a and 315b integrally provided at both ends of the bent main body 313.

The guide groove 311 of the bent main body 313 is installed so as to be in contact with the guide passage 203 of the guide nozzle 201 so that the member 500 to be bent can be connected to the guide groove 31.
1 can be freely entered. The leading end of the guide groove 311 forms a predetermined inclined surface 312, and the bent member 5
00 bends can be performed effectively.

The support ring portions 315a and 315b are provided for firmly fixing the bending body 313 to the support frames 301a and 301b.
The ring-shaped receiving portions 318a and 318b capable of rotatably receiving the circular guide grooves 316a and 316b and the bending rotating bodies 320a and 320b are prepared in the holes a and 315b. The bending rotators 320a and 320b are connected to the bending fixed body 310.
Are rotatably received by the ring-shaped receiving portions 318a and 318b prepared on both sides. Also, the rotating bodies 320a, 320
In b, guide holes 323a and 323b communicating with the guide grooves 316a and 316b of the fixed body 310 are provided so as to penetrate therethrough.

The guide holes 323a, 323b are provided for movably inserting the bending rod 330,
The shape is also the same as the cross-sectional shape of the bent rod 330. Further, in the drawings, a plurality of guide holes 323a and 323b are shown as an example, but only one of them may be provided. In addition, bending rod 330
Has a length that allows the rotating bodies 320a and 320b installed outside the support frames 301a and 301b to be interconnected. Therefore, if the bending rod 330 is inserted through the first guide hole 323a of the first rotating body 320a, it passes through the side of the fixed body 310 and then enters the second guide hole 323b of the corresponding second rotating body 320b. It is inserted to be able to move up and down.

The bending rod 330 inserted so as to interconnect the first and second rotating bodies 320a and 320b is provided for the bending operation of the member to be bent 500 while being rotated together with the rotating bodies 320a and 320b. . When the bending operation is not performed, the bending rod 330 is moved upward so as to completely disengage the bent main body 313 of the bending fixed body 310. Such an operation is performed by a driving unit 400 described later. In the drawings according to the embodiment, a case where a plurality of bending rods 330, particularly two bending rods 330 are provided has been described as an example, but only one bending rod 330 may be provided.

The driving section 400 includes rotating bodies 320a, 320
a first driver 410 provided for rotating b;
The second driving unit 420 is provided to move the bending member 330 up and down from the bending main body 313. The first driving unit 410 includes a support frame 301a,
First tooth portions 411a and 411b fixed to both ends of a rotating shaft 418 rotatably supported by the shaft 301b, and the rotating body 3 so as to engage with the first tooth portions 411a and 411b.
The second tooth profile 41 provided on the outer peripheral surface of each of 20a and 320b
3a, 413b, and a servomotor M directly connected to the rotating shaft 418. The second driving part 420 moves the bending rod 330 up and down.
A cylinder 4 which is connected to one end of the
21. As the operation source of the cylinder 421, both hydraulic and pneumatic can be used.

The operation of the bending machine constructed as described above will be briefly described. First, the bent member 500 is connected to the guide member 20.
0 and is transferred to the bending member 300. Next, the second drive section 420 is operated. Therefore, if only one of the cylinders 421 of the second drive unit 420 which has been positioned as shown in FIG. 2 is operated to descend, the bending rod 330 integrated therewith becomes a rotating body 320a. , 32
0b are inserted into the guide holes 323a and 323b, and at the same time, are located on one side of the bending fixed body 313 adjacent to the member 500 to be bent. Since the guide holes 323a and 323b are formed at the same position as each other, the bending rod 330 is used when the cylinder 421 is moved downward.
Is inserted naturally.

The bent rod 330 is connected to the member 500 to be bent.
When the movement to the adjacent position is completed, the first driving unit 410 is operated. The first drive unit 410 is executed by driving the servo motor M. The first tooth profiles 411a and 411b are rotated together with the rotating shaft 418 by the drive of the servo motor M, and the first tooth profiles 411a and 411b and the second tooth profiles 413a and 413b are rotated by the meshing operation. The music rotating bodies 320a and 320b are rotated with the fixed body 310 as a supporting point. When the rotating bodies 320a and 320b rotate, the bending rod 330 connected thereto also rotates. That is, the bending rod 330 is attached to the bending fixed body 3.
13 and rotates along the guide groove 316b while surrounding the fixed body 313 along the guide groove 316b.
The bent member 500 comes into contact with the bent member 500 that has come out to the outside.
Is bent along the inclined surface 312. At this time, the bending angle of the bent member 500 is determined by the magnitude of the driving force applied to the servo motor M.

FIG. 4 is a perspective view of the automatic learning device for a bending machine according to the first embodiment of the present invention. As can be seen from the drawing, the automatic learning device of the present invention is applied to the bending machine shown in FIG. Therefore, description of the bending machine is omitted. The board member 600 is fixed on the support frame 301b of the bending machine. An encoder support member 700 is detachably connected to the substrate member 600. Therefore, it is desirable that the substrate member 600 is made of a magnetic material, and a magnet is attached to the bottom surface of the encoder support member 700.

The encoder support member 700 includes a rail support plate 710, a pair of rails 720a and 720b formed on the rail support plate 710, and the encoder 800.
Is fixed to the rails 720a and 720b, and the operating plate 730 is connected so as to slide along the rails. The length direction of the rails 720a and 720b is
The bent members are arranged in the same direction as the transfer direction. The encoder 800 is fixed on the operating plate 730 so that the rotation shaft 810 faces upward, and the output is input to the control unit 100.

The shaft of the encoder 800 and the member to be bent 500
A rotation transmitting member 900 for transmitting the amount of bending rotation of the member to be bent 500 to the encoder 800.
Are combined. The rotation amount transmitting member 900 includes the bent member 5.
00 and a gripper 9 that is arranged in a direction substantially perpendicular to and has one end holding the bent member and the other end connected to the connecting rod 910.
20 and a connecting rod 910 that is arranged substantially horizontally with the member to be bent, one end of which is connected to the gripper 920, and the other end of which is fixed to the rotating shaft 810 of the encoder 800.

The grip 920 is coupled to the connecting rod 910 so as to be movable along the length of the connecting rod 910 by the amount of movement of the member to be bent. Such a configuration can be easily combined with a spline shaft or can be easily considered by a person having ordinary knowledge in this technical field, and thus a specific description is omitted. At the same time, the bent member 5
A slot 922 through which 00 passes is formed. An elastic spring (not shown) or the like is built in the slot 922 to support the member to be bent 500 elastically.

The operation of the automatic learning device for a folding machine according to the present invention configured as described above will be briefly described. First, since the operation of the folding machine has been described before, it can be sufficiently understood without further explanation. Further, the automatic learning device of the present invention has an object to obtain driving data for obtaining an accurate bending angle before bending the same bent member 500 in large numbers using a bending machine. This is mainly explained.

First, predetermined drive data is transferred to the servo motor M
Is applied. Then, as described above, the bending rod 330 rotates at a predetermined angle according to the applied drive data. Therefore, the member to be bent 500 is bent at the same angle. At this time, the rotation amount corresponding to the bending angle of the bent member 500 is transmitted through the rotation amount transmitting member 900 to the encoder 80.
Rotate 0.

Therefore, the encoder 800 applies a pulse corresponding to the rotation amount to the control unit 100. Therefore, the control unit 100 recognizes the number of pulses applied from the encoder 800 and calculates a bent angle. If the member to be bent 500 is bent at a desired angle in this manner,
The drive data at that time is recorded in a memory (not shown) built in the control unit.

FIGS. 5A to 5C are conceptual views for explaining the necessity of the rotation transmitting member and the encoder for the automatic learning device according to the present invention. FIG.
5A is a state diagram before the member to be bent 500 is bent, and FIG. 5B is a state diagram in which the member 500 is bent at an angle.
(C) shows a state diagram of a round bend. As can be seen from the drawing, FIG. 5A shows a state after the bent member 500 is transferred and before it is bent. In such a state, if it is bent to the desired angle (θ1), FIG.
(B). When the angle is bent as described above, the encoder 800 and the grip 9 of the rotation transmitting member
20 need not move.

However, as shown in FIG.
When 00 is bent in a round, the desired angle (θ
In order to obtain 2), the encoder 800 moves in the X direction in accordance with the amount of movement of the member to be bent 500 in the X direction.
20 is moved in the Y direction.

FIG. 6 is a perspective view of an automatic learning device for a bending machine according to a second embodiment of the present invention. In this embodiment, the same components as those in the embodiment of FIG. 4 are denoted by the same reference numerals, and redundant description will be omitted. As can be seen from the drawing, the learning device for a bending machine according to the present embodiment includes a position sensing unit 100 detachably fixed to a rotating body 413b of a bending member.
0 is provided.

The position sensing unit 1000 has a predetermined length and one end is detachably fixed to the upper surface of the rotating body 413b so as to rotate together with the rotating body. At the same time, the position sensing unit 1000 includes a plurality of position sensing sensors 1110, 1120, and 1130 along a length direction.

The operation of the above-structured automatic learning device for a bending machine according to the second embodiment of the present invention will be described. First, the control unit 100 drives the second drive unit 420 to lower the cylinder 421. Therefore, the bending rods 330 are located on both sides of the bent member 500. Next, predetermined driving data is applied to the first driving unit 410 to rotate the bending rod 330 at a predetermined angle. Therefore,
The member to be bent 500 is bent at the same angle as shown by the dotted line. The above operation is the same as in the first embodiment.

Next, the second driving section 420 is operated again to return the bending rod 330 to the original position. And
The control unit 100 controls the first driving unit 410 again to control the rotating body 4.
13b is driven to rotate. Therefore, the position sensing unit 1000 fixed to the rotating body 413b rotates to rotate the bent member 50.
Detect a bent position of zero. The signals sensed by the sensing sensors 1110 to 1130 of the position sensing unit 1000 are applied to the control unit 100, and the control unit 100 determines the bending angle of the member to be bent based on the sensing signal and the data applied to the driving motor. Measure, if the measurement angle corresponds to the desired bending angle,
The driving data at that time is recorded in the memory of the control unit 100.

[0030]

As described above, the automatic learning apparatus for a bending machine according to the present invention can accurately obtain a desired bending angle for a bent member of the same material before actually bending the bent member. The driving data applied to the driving unit is automatically measured and stored.

Therefore, when bending a member to be bent of the same material, there is an advantage that not only the error of the bending angle can be reduced but also drive data for bending can be obtained quickly and accurately.

[Brief description of the drawings]

FIG. 1 is a perspective view of a bending machine.

FIG. 2 is an exploded perspective view of a main part of a bending member.

FIG. 3 is a side view of FIG. 1 as viewed in the direction of arrow B.

FIG. 4 is a perspective view of an automatic learning device for a bending machine according to the first embodiment of the present invention.

5 (a) to 5 (c) are conceptual diagrams for explaining the necessity for the rotation amount transmitting member and the encoder to move in the automatic learning device according to the present invention.

FIG. 6 is an exploded perspective view of an automatic learning device for a bending machine according to a second embodiment of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 100 control unit 300 bending member 400 driving unit 500 bent member 600 substrate member 700 encoder support member 800 encoder 900 rotation transmitting member

[Procedure amendment]

[Submission date] June 30, 1999

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0006

[Correction method] Change

[Correction contents]

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, a feature of the present invention is to provide an automatic learning device for a bending machine, which comprises a bending member for bending a transferred bent member, and A bending machine provided with a drive unit that rotationally drives the bending member,
One side end grips the end of the bent member in the transfer direction, and the other end is coupled to a rotation shaft of an encoder provided above the bending member via a substrate member, and is bent. A rotation amount transmitting member for transmitting the amount of bending rotation of the member to the rotation shaft of the encoder; and a member to be bent which is coupled to the bending machine and outputs the amount of rotation transmitted from the rotation amount transmitting member in a pulse form. An automatic learning device for a bending machine including an encoder for measuring a bending angle of the bending machine.

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0008

[Correction method] Change

[Correction contents]

[0008]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. Prior to the description of the present invention, an embodiment of a bending machine related to the present invention will be described first. FIG. 1 is a perspective view of a bending machine according to Korean Patent Publication No. 98-31727, which was previously filed by the present applicant, and FIG. 2 is an exploded perspective view of a main part of the bending member of FIG. 3 is a side view of FIG. 1 viewed from the direction B. Although the preceding bending machine is a bending machine for bending a cutting blade, the automatic learning device of the present invention does not necessarily limit the member to be bent to the cutting blade. As can be seen from the drawing, the preceding bending machine includes a guide member 200 for guiding the member to be bent 500, a bending member 300 for bending the transferred member to be bent 500, and this bending member. It comprises a driving unit 400 for driving.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0018

[Correction method] Change

[Correction contents]

The encoder support member 700 includes a rail support plate 710, a pair of rails 720a and 720b formed on the rail support plate 710, and the encoder 800.
Is fixed to the rails 720a and 720b, and is constituted by an operating plate 730 coupled so as to be slidable along the rails. The length direction of the rails 720a and 720b is
The bent members are arranged in the same direction as the transfer direction. The encoder 800 is fixed on the operating plate 730 so that the rotation shaft 810 faces upward, and the output is input to the control unit 100.

[Procedure amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0027

[Correction method] Change

[Correction contents]

The operation of the automatic learning device for a bending machine according to the second embodiment of the present invention will be described. First, the control unit 100 drives the second drive unit 420 to lower the cylinder 421. Therefore, the bending rod 330 is moved to the bent member 500.
Centered on both sides. At this time, the position sensing unit 100
Position sensing sensor 1110, 1120, 1130 on 0
Is the position sensing unit 100 before the bending rod 330 rotates.
0 position is sensed. The first position data before the rotation is recorded in the memory of the control unit 100. Next, the first driving unit 410 is driven to rotate the bending rod 330.

[Procedure amendment 6]

[Document name to be amended] Statement

[Correction target item name] 0028

[Correction method] Change

[Correction contents]

Next, the bent member 500 is bent by the rotated bending rod 330 at the rotated angle as shown by the dotted line. Here, the first driving unit 41
When the “0” is driven, the rotating body 413b is also rotated at the same time, and the position sensing unit 1000 is rotated as much as the bent member 500 is bent. At this time, the position sensing unit 100
Position sensors 1110, 1120, and 1130 on 0 sense the rotated position. This second position data is recorded in the memory of the control unit 100.

[Procedure amendment 7]

[Document name to be amended] Statement

[Correction target item name] 0029

[Correction method] Change

[Correction contents]

Next, the control unit 100 compares the first position data and the second position data to measure a bending angle, and if the measured angle corresponds to a desired bending angle, the angle data at that time is obtained. Is recorded in the memory of the control unit, and thereafter, processing is performed according to the stored angle data.

Claims (6)

[Claims] 1. An automatic learning device for a bending machine, comprising: a bending machine having a bending member for bending a transferred bent member, and a drive unit for driving the bending member to rotate. A portion for gripping an end of the member to be bent and an end on the other side coupled to a shaft of the encoder, and a rotation amount transmitting member for transmitting the amount of bending rotation of the member to be bent to the shaft of the encoder; An automatic learning device for a bending machine, comprising: an encoder coupled to the machine and outputting a rotation amount transmitted from the rotation amount transmitting member in a pulse form to measure a bending angle of the bent member. A gripping portion arranged substantially vertically to the member to be bent and having one end gripping the member to be bent and the other end coupled to a connecting rod; 2. The connecting member according to claim 1, further comprising a bending member and a connecting rod that is arranged substantially horizontally, one end of which is connected to the gripper, and the other end of which is fixed to the rotary shaft of the encoder. Automatic learning device for folding machines. 3. The bending machine according to claim 2, wherein the grip portion is movably coupled to the connecting rod along a length of the connecting rod by a moving amount of the member to be bent. Automatic learning device. 4. The automatic learning device for a bending machine according to claim 2, wherein a slot through which the member to be bent penetrates is formed at an end of the grip portion. 5. The automatic learning device for a bending machine according to claim 1, wherein the encoder is configured to be movable along a direction in which the member to be bent is transported. 6. A bending machine for bending and bending, comprising: a bending member provided with a bending member for bending the transferred bent member; and a drive unit for driving the bending member to rotate. A position sensing unit detachably fixed to the rotating body, including a plurality of position sensing sensors, wherein the position sensing sensor applies a sensing signal for a bending position of the bent member to the control unit; A bending angle measuring means for measuring the bending angle of the member to be bent using the detected sensing signal.