JPS6120376B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is a general-purpose automatic folding machine that uses a press brake type folding machine to arbitrarily bend both edges of a plate-shaped object such as a steel plate in multiple directions in different directions. It is related to the device.

When arbitrarily bending both ends of the plate-shaped body in multiple directions in different directions, it is necessary to invert the plate-shaped body or change the front and back directions of the plate-shaped body. Conventionally, such work has been done manually, and for example, when the plate-shaped object is large, multiple hands are required for one bending machine, resulting in low work efficiency.

The main purpose of this invention is to solve the above-mentioned problems, and examples will be described in detail below. For convenience of explanation, the left side in FIGS. 1 and 2 will be referred to as the front of the press brake type bending machine, and the right side will be referred to as the rear thereof.

1...It is a known press brake type bending machine.
1a is a mold on the lower side, and 1b is a vertically sliding mold on the upper side.

A: A plate-like object transfer and positioning device that is arranged in series at the front and rear of the bending machine 1 and has grips for grasping the plate-like object W from the front and rear directions, respectively. This device A includes degrees of freedom for positioning the grip in a vertical plane in the longitudinal direction and degrees of freedom for positioning it around an axis in the left and right directions. This embodiment device A will be described as follows: 2. In front of the folding machine 1, there are pedestals that are erected so as to face each other on the left and right sides.

3...A rotating arm whose one end is pivotally attached to the upper part of each pedestal 2 by a shaft 4 extending in the left and right direction. Each rotating arm 3 in this embodiment is separately driven by a hydraulic motor (not shown).

5...This is a pedestal that is erected at the rear of the folding machine 1 so as to face each other left and right, and in a symmetrical position with the pedestal 2 with the folding machine 1 as the center.

6... At the upper part of each pedestal 5, each is a rotating arm whose one end is pivotally connected by a shaft 7 in the left and right direction. Each rotating arm 6 in this embodiment is separately driven by a hydraulic motor (not shown).

8, 9...These are movable bodies that are supported by the rotating arms 3 and 6 toward the inside thereof and are movable in the longitudinal direction thereof. That is, each of the movable bodies 8, 9 is supported by the longitudinal guides 3a, 6a as shown in FIG. 3, and is screwed into threaded rods 3b, 6b. The threaded rods 3b and 6b are each driven by a hydraulic motor (not shown).

10, 11 are rotating bodies that are supported by the movable bodies 8, 9 toward the inside thereof, and are rotatable around shafts 12, 13 in the left-right direction, and each is driven by a hydraulic motor (not shown).

14, 15...supported by each rotating body 10, 11,
Each frame body can move in and out in a direction perpendicular to the left and right direction. That is, each frame 14, 15 is
Guides 16 and 17 fixed to each rotating body 10 and 11
It is designed to be supported by and moved by actuators 18 and 19.

20, 21...These are grips attached to the respective frames 14, 15 toward the protruding side in the direction of protrusion and retraction. Each grip 20, 21 in this embodiment has one claw 20a, 21a protruding from each frame 14, 15, and the other claw 20b, 21a.
21b is connected to each frame body 14, 15 20c, 21c
The claws 20b, 21b are rotated by actuators 22, 23.

24, 25...On the retracting side of each grip 20, 21 in the direction of retraction, each rotating body 10,
11 are fixedly installed stoppers.

26, 27...Auxiliary means for changing the plate-like body, which are arranged symmetrically at the front and rear of the bending machine 1, between the two rotating arms 3 and between the two rotating arms 6, respectively;
In the embodiment, it is a plate-shaped object mounting stand. The platforms 26 and 27 in this embodiment are supported on known pantograph mechanisms 26a and 27a, and can be raised and lowered in a horizontal state by actuators 26b and 27b. Although not shown, a known electromagnet is appropriately attached to the lower surface of each platform 26, 27.

The plate-shaped object transfer and positioning device A is configured by the configurations 2 to 27 above.

B: A supply unit which is arranged in front of the bending machine 1 and is intended to supply the plate-shaped bodies W one by one to the transfer and positioning device A. The supply section B of this embodiment will be explained as follows: 28... It is a conveyor device installed in the front-rear direction and carrying in the plate-shaped body W.

29...This is a known means that is disposed above the rear end of the conveyor device 28 and takes out the plate-shaped bodies W on the conveyor device 28 one by one.In the embodiment, it has a suction cup 29a and is movable up and down.

The supply section B is configured by the configurations 28 and 29 above.

C... A carry-out section disposed at the rear of the folding machine 1 to carry out the folded plate W, and in this embodiment is a conveyor device installed in the front-rear direction.

D...A well-known general-purpose computer, which includes a bending machine 1, each hydraulic motor (not shown), and an actuator 1.
8, 19, 22, 23, 26b, 27b, conveyor device 28, means 29, discharge section C, etc. can be controlled.

Furthermore, the operation of this embodiment will be explained assuming that, for example, the plate-like body W is bent into a square shape.

It is assumed that each component is present at the position indicated by the solid line in FIGS. 1 to 4. Then start computer D and use method 2.
9 to the position indicated by the two-dot chain line in FIG.
Adsorb with.

Next, the means 29 is raised to the position shown in FIG. 5, and only one plate-shaped body W is lifted up.

Then, the actuator 22 is contracted and the claw 20b is
The grip 20 is opened by rotating it as shown by the two-dot chain line 20b in FIG.
8 is contracted to move the frame body 14 to protrude, and the claw 20
a, 20b are projected at the positions indicated by two-dot chain lines 20a', 20b' in FIG. Then, the actuator 22 is extended again, the grip 20 is closed, and the rear edge of the plate W is grasped as shown in FIGS. Note that the gripping action of the plate-shaped body W by the grip 20 is the same for the grip 21, and a description of the gripping action will be omitted below.

Next, the actuator 18 is extended again, the frame 14 is retracted, and the grip 20 is returned to its original position. At this time, the rear end edge of the plate-shaped body W comes into contact with the stopper 24 as shown in FIG. 7, and the gripping position of the plate-shaped body W with respect to the grip 20 is determined. Note that this gripping position determining action is the same for the grip 21, and a description of the gripping position determining action will be omitted below.

Next, as shown in the solid line in Fig. 8, the bending machine 1 for the plate-shaped body W is
After positioning the mold 1b as shown in FIG.
Lower the plate-shaped body W to the position indicated by the dotted chain line, and place the plate-like body W on both molds 1.
Once a and 1b are sandwiched.

Next, the actuator 22 is retracted and the grip 2
0 is opened, the grip of the plate-like body W by the grip 20 is released, and the grip 20 is moved away from the plate-like body W. Note that this grip release action is the same for the grip 21, and a description of the grip release action will be omitted below.

Next, as shown in FIG. 9, the mold 1b is lowered and the plate-shaped body W is bent.

Next, as shown in FIG. 10, after gripping the plate-like body W with the grip 20, the mold 1b is raised as shown in FIG. As a result, the plate-shaped body W is attracted and fixed to the platform 26 at the position where it is placed on the platform 26.

Next, the grip of the plate-shaped body W by the grip 20 is released, and the edge of the plate-shaped body W on the opposite side from the previous grip is gripped by the grip 20 as shown in FIG.

Next, the attraction of the plate-shaped body W by the electromagnet is released, and the plate-shaped body W is placed between the two molds 1a and 1b using the grip 20 as shown in FIG. Grab it.

Next, after releasing the grip of the plate-like body W by the grip 20 and determining the grip position of the plate-like body W by the grip 21, the grip 2
1, the plate-shaped body W is positioned with respect to the bending machine 1. Then, the mold 1b is lowered to the position indicated by the two-dot chain line in FIG. 14, and the plate-shaped body W is once sandwiched between the two molds 1a and 1b.

Next, after releasing the grip of the plate-shaped body W by the grip 21, the mold 1b is lowered as shown in FIG. 15, and the plate-shaped body W is bent.

Next, as shown in FIG. 16, after gripping the plate W with the grip 21, the mold 1b is raised as shown in FIG. , the plate-shaped body W is placed on the stand 27
Attract it to a certain position.

Next, the grip of the plate-shaped body W by the grip 21 is released, and the edge of the plate-shaped body W on the opposite side from the previous grip is gripped by the grip 21 as shown in FIG.

Next, after releasing the attraction of the plate-like body W by the electromagnet and determining the gripping position of the plate-like body W by the grip 21, the grip 21 is held as shown by the solid line in FIG.
The plate-shaped body W is positioned with respect to the bending machine 1. Then, the mold 1b is lowered to the position indicated by the two-dot chain line in FIG. 19, and the plate-shaped body W is once sandwiched between the two molds 1a and 1b.

Next, after releasing the grip of the plate-shaped body W by the grip 21, the mold 1b is lowered as shown in FIG. 20, and the plate-shaped body W is bent.

Next, as shown in FIG. 21, after gripping the plate-like body W with the grip 21, the mold 1b is raised as shown in FIG. Then, the grip 20 grips the plate W.

Next, the grip of the plate-shaped body W by the grip 21 is released, and the plate-shaped body W is placed on the platform 26 by the grip 20 as shown in FIG. Attract it to.

Next, the grip of the plate-like body W by the grip 20 is released, and as shown in FIG. 24, the grip 20 grips the edge of the plate-like body W on the opposite side from the previous grip.

Next, after releasing the attraction of the plate-like body W by the electromagnet and determining the gripping position of the plate-like body W by the grip 20, the grip 20 is held as shown by the solid line in FIG.
The plate-shaped body W is positioned with respect to the bending machine 1. Then, the mold 1b is lowered to the position indicated by the two-dot chain line in FIG. 25, and the plate-shaped body W is once sandwiched between the molds 1a and 1b.

Next, after the grip 20 is released from gripping the plate-shaped body W, the mold 1b is lowered as shown in FIG. 26, and the plate-shaped body W is bent.

Next, as shown in FIG. 27, after gripping the plate-like body W with the grip 20, the mold 1b is raised as shown in FIG. Then, the grip 21 grips the plate W.

Finally, the grip of the plate-shaped object W by the grip 20 is released, and the plate-shaped object W is placed on the conveyor device C by the grip 21 and carried out.

In this way, the plate-shaped body W can be automatically bent into a square shape and carried out. For example, after a certain number of bent plate-shaped bodies W are stacked on the conveyor device C,
It may be carried out.

Although the explanation was omitted in the above explanation of the effect,
If the platforms 26 and 27 become an obstacle when transferring the plate-shaped object W using the grips 20 and 21, the actuators 26b and 27b are contracted to move the plate-like object W to the platforms 26 and 21.
27 should be lowered.

As is clear from the above description, it is easy to understand that the plate-shaped body W can be automatically folded into multiple folds in different bending directions, and can be folded into various shapes other than the square shape. Dew. Further, when the plate-like object W is small, the plate-like object transfer and positioning device A does not need to be disposed facing each other on the left and right sides, and only one side can be used. Furthermore, auxiliary means 2 for changing the plate-like object
6 and 27 are the auxiliary grips 3 as shown in FIG.
It may be configured as 0,31. These grips 30, 31 can be raised and lowered by actuators 32, 33, one of the claws 30a, 31a is fixed to the piston rods 32a, 33a, and the other claws 30b, 31b are engaged with the claws 30a, 31a.
0c, 31c, and can be rotated by actuators 34, 35. It goes without saying that the technical scope of the present invention also includes the replacement of each component with equivalents.

Since this invention is as described above, (1) The plate-like object W is moved by the plate-like object transfer and positioning device A.
Both ends of the sheet W can be automatically folded in multiple directions in different directions, allowing the operator to flip the sheet W, change its direction from front to back, and position it. There is no need to go through the trouble of doing so.

(2) Therefore, work efficiency is greatly improved.

[Brief explanation of the drawing]

1 to 28 all show an embodiment of the present invention, in which FIG. 1 is a schematic longitudinal sectional side view of the whole, FIG. 2 is a schematic plan view of the whole, and FIG. 3 is an explanation of the main parts of the plate-shaped object transfer and positioning device. Figure 4 is a cross-sectional view of Figure 3.
The cross-sectional view and FIGS. 5 to 28 are action explanatory views.
FIG. 29 is a longitudinal sectional side view showing a portion of another embodiment of the invention. In the figure, 1... Press brake type bending machine, A... Plate-shaped object transfer and positioning device, B... Supply section, C... Unloading section, W... Plate-shaped body, 3, 6... Rotating arm , 4, 7... Pivot shaft, 8, 9... Moving body, 1
0,11... Rotating body, 14,15... Frame body, 2
0, 21...Grip, 24, 25...Stopper, 26, 27...Auxiliary means for changing the plate-like object (plate-like object platform), 30, 31...Auxiliary means for changing the plate-like object (auxiliary) grip).

Claims (1)

[Claims] 1. A press brake type bending machine, and a plate-like object transfer positioning device that is arranged in series at the front and rear of this bending machine and has grips for gripping the plate-like object from the front and rear directions, respectively. This plate-shaped object transfer and positioning device includes a rotating arm pivotally connected to a left-right axis, a moving body supported by the rotating arm and movable in the longitudinal direction, and a horizontally movable body supported by the rotating arm. A rotating body supported by a shaft, a frame supported by the rotating body and capable of protruding and retracting in a direction perpendicular to the front, rear, left and right directions, and a grip attached to the frame and facing the protruding side in the direction of the protrusion and retraction. , a stopper fixed to the rotating body on the retracting side of the grip in the retracting and protruding direction. 2. The plate-shaped body according to claim 1, wherein the plate-shaped body transfer and positioning device includes auxiliary means for changing the grip of the plate-shaped body disposed before and after the press brake type bending machine. Automatic folding device. 3. The plate-like object automatic bending device according to claim 1 or 2, wherein the plate-like object transfer and positioning device is provided so as to face left and right sides. 4. The plate-like object automatic folding device according to claim 2, wherein the plate-like object changing auxiliary means is a plate-like object mounting table. 5. The plate-like object automatic folding device according to claim 2, wherein the plate-like object changing auxiliary means is an auxiliary grip.