JPS59124512A - Suspension jig provided with electromagnet group and automatic cutting device - Google Patents

Abstract

PURPOSE:To perform the assortment of plate work after cutting in an efficient manner, by cutting each plate work with a cutting device on the basis of a command out of a control unit according to the form of a workpiece, while selectively energizing a lot of electromagnets installed on the bottom of a suspension jig in the same manner. CONSTITUTION:A suspension jig 20 is made up of installing a lot of electromagnets 24 on the bottom of a platelike suspension jig body 22, while a bundle of wiring being individually connected to each of these electromagnets 24 is connected to a switch device which is controlled for on-off operation by a control unit. On the other hand, on the top of a conveying device 30 of a steel plate 10 to be cut, there is provided with a cutting device 32 carrying cutting torches 34 astride the said conveying device, and both these devices 30 and 32 are controlled by a control unit 36. Likewise, a crane 40 is installed in position astride the conveying device 30, and at its trolley 46, the said suspension jig 20 is suspended down via a wire 48. And, according to a command out of the control unit 36, copper plates 38, as a product, after cutting by the suspension jig 20 and the residual work are assorted and each of them is fed to the next stage of work specified.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a hanging jig and automatic cutting device equipped with a group of electromagnets.

When manufacturing ship hulls, many steel plates are cut,
An assembly process is essential. When cutting this steel plate, a product part that is required after cutting and a residual material part that is unnecessary are generated.

FIG. 1 is a plan view showing an example of a steel plate 10 to be cut, in which the parts marked with a cross are the product 12, and the parts marked with white are the remaining material 14.

Conventionally, in order to separate the product 12 and the remaining material 14 after cutting,
First, the product is taken out using a small electromagnet, and the remaining material is divided into pieces (in Fig. 1, the broken lines indicate the cutting lines when dividing the remaining material into pieces).
A transport device (not shown) on which the 0s are placed is driven to discharge them all at once.

However, since the shapes of the product parts vary widely, it is not suitable for suspending them using small electromagnets. That is, if the shape of the product changes, the center of gravity will naturally change, so the small electromagnet must be moved accurately in accordance with this. Furthermore, if the number of small electromagnets is small, the suspension will be unstable.

In addition, large parts of the remaining material need to be reused to cut out small products, but this cannot be done with the above-mentioned bulk discharge method, and the manual discharge method still has extremely low work efficiency.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art and to provide a hanging jig and automatic cutting device equipped with a group of electromagnets that can quickly and accurately sort members after cutting.

In order to achieve this object, the present invention has the following gist.

That is, in the first invention, data indicating the shape of a board-shaped hanging jig main body, a large number of electromagnets attached to the bottom of the hanging jig main body, and a member to be hung are inputted, and data indicating the shape of the hanging member is inputted, and the hanging jig is suspended based on this data. The gist of the present invention is a lifting jig equipped with an electromagnet group, and an electromagnet control device that selects an electromagnet that comes into contact with a member to be lowered and energizes only the selected electromagnet.

A second invention also provides a conveyance device for conveying a plate material to be cut, a cutting device body for cutting the plate material placed on the conveyance device, and a cutting device body for cutting the plate material into a predetermined shape. In the automatic cutting device, a crane is provided in a part of the conveying device that follows the cutting device, and a crane is installed in a board-shaped lifting jig body, and a crane is attached to the bottom of the lifting jig body. Data indicating the shape of the plate after cutting and the large number of electromagnets that were cut are input, and based on this data, the electromagnet control device selects the electromagnet that will come into contact with the suspended plate and energizes only the selected electromagnet. The gist of the present invention is an automatic cutting device characterized in that a lifting jig provided therein is attached to the crane device.

The present invention will be described in further detail below with reference to embodiments shown in the drawings.

FIG. 2 is a perspective view of a hanging jig 20 according to an embodiment of the present invention, and FIG. 3 is a bottom view thereof.

Reference numeral 22 denotes a board-shaped suspension jig body, which is suspended from an overhead crane (not shown). A large number of electromagnets 24 are arranged on the bottom surface.

These electromagnets are individually wired so that they can be energized independently, and this wire bundle 26 is connected to a switch device that is turned on and off by a control device. (Note that the control device and the control device are not shown.) Data indicating the shape of the member to be lifted (for example, the above-mentioned product 12 or the remaining material 14) is input to this control device, and the A control signal is issued to the switch device so that only the electromagnets 24 in that section are energized.

FIG. 3 shows the bottom surface 1g of the lifting jig 20, which shows an example of lifting two products 12 shown in FIG.
Only the electromagnets in the portions that come into contact with 2 (the electromagnets within the hatched area in the figure) are energized. That is, by lowering the lifting jig in advance onto the portions of the steel plate 10 indicated by A, B, or C (see Figure 1), and then energizing the electromagnets within the area indicated by the hatches in Figure 3 as described above, the product can be lifted. 12 can be quickly and accurately lifted. Further, by moving the lifting jig 20 to the product storage area while lifting the products 12, and stopping the power supply to the electromagnet 24 after lowering the product 12, the products 12 can be properly stacked at the planned location. FIG. 4 is a perspective view of the products 12 stacked by this automatic palletizing operation, and 28 is a mounting table.

Note that the remaining materials 14 other than the product 12 can also be lifted and moved in the same manner.

FIG. 5 is a perspective view of an automatic cutting device according to a second embodiment of the invention, and relates to an example employed in the process of assembling blocks of a ship's hull.

IO is a steel plate to be cut, and is placed on an endless conveyor 30. This conveying device 30 has a number of supporting tips (not shown) erected upward so that the steel plate 10 can be cut with a welding torch while being placed thereon, and the steel plate 10 is placed on top of these tips. It is placed on.

Reference numeral 32 denotes a cutting device main body disposed across the conveying device 30, supported so as to be movable along the conveying device, and moved by a drive device (not shown). This cutting device 32
A cutting torch 34 that is movable in a direction across the four conveyance devices 32 is attached to the four conveyance devices 32. Thus, the conveying device 30 and the cutting device main body 32 are controlled by the control device 36,
The steel plate 10 is cut into a set shape. 38 is the steel plate after cutting. It is preferable that the control device 36 be of a so-called NC control type in which control is performed using operation instructions based on numerical information.

A crane 40 is installed above the portion of the conveying device 30 that follows the cutting device 32, crossing the conveying device 30, and is movable along rails 42, 44 in the steel plate conveying direction. A trolley 46 attached to the crane 40 is movable in the width direction of the transport device 30, and the lifting jig 20 is suspended from the trolley 46 via a wire 48. This hanging jig 20 is related to the above-mentioned first invention, and is used to sort the cut steel plate 38 into products and residual material, and to perform the product assembly process and the remaining material, respectively.
The remaining materials are being transported to a storage area. In this embodiment, the switch device (not shown) of the lifting jig 20 is controlled by the control device 36, and the input data instructing the cutting shape of the steel plate 10 is input to the switch device (not shown) of the lifting jig 20. This also serves as input data for lifting control, making it possible to accurately lift cut products and leftover materials.

As detailed above, according to the hanging jig of the present invention, parts, particularly cut steel products, and residual materials can be sorted extremely quickly, and the palletization can also be performed accurately.

Further, the automatic cutting device of the present invention is capable of automatically cutting a steel plate, and is also capable of very quickly sorting the product from the remaining material.

Furthermore, the so-called shredded residual material, which is the residual material that is further divided into pieces, can be divided into those that should be reused and those that should be disposed of. Therefore, the efficiency of the work process using this device is dramatically improved.

[Brief explanation of the drawing]

FIG. 1 is a plan view of the steel material to be cut, FIG. 2 is a perspective view of the hanging jig according to the embodiment of the first invention, FIG. 3 is a bottom view of the same, and FIG. 4 is a view of the stacked products 12. Perspective view, Figure 5 is the second
1 is a perspective view of an apparatus according to an embodiment of the invention; FIG. 20... Hanging jig, 22... Hanging jig main body, 2
4... Electromagnet, 30... Conveyance device, 32.
...Main body of the cutting device, 40...Crane agent Tatsuyuki Unuma (and 2 others) Fig. 1 Fig. 3

Claims (2)

[Claims] (1) A board-shaped hanging jig main body, a large number of electromagnets attached to the bottom of the hanging jig main body, and data indicating the shape of the member to be hung are input, and the member to be hung based on this data is input. and an electromagnet control device that selects an electromagnet that comes into contact with the electromagnet and energizes only the selected electromagnet. (2) A conveyance device that conveys the plate material to be cut, a cutting device body that cuts the plate material placed on the conveyance device, and control that controls the cutting device body to cut the plate material into a set shape. In the automatic cutting device, a crane is provided at a part of the conveying device that follows the cutting device, and a crane is provided in a part of the conveying device that follows the cutting device, and a board-shaped lifting jig main body, and a large number of A lifting jig equipped with an electromagnet and an electromagnet control device into which data indicating the shape of the board after cutting is input, selects the electromagnet that will come into contact with the board to be hung based on this data, and energizes only the selected electromagnet. An automatic cutting device characterized in that it is attached to the crane device.