JPS6328708B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a steel sheet fusing device including a sorting device.

Conventionally, steel plate fusing equipment for obtaining multiple pieces of arbitrary sizes from a single plate material by fusing a raw steel plate held in a cantilever manner to a predetermined size using, for example, a plasma torch. However, in this case, the melted slag and melted fragments that are generated during fusing are mixed together and fall to the melting position, so only the melted fragments are picked up manually and transferred to the transfer device for the next process, and the melted fragments are removed from the melted slag. were discharged in a timely manner.

Therefore, even if robots are used for fusing work, complete automation cannot be achieved in terms of post-processing, and manual intervention is involved, which is dangerous, so some kind of improvement is desired from the viewpoint of improving work efficiency and safety. Ta.

In view of the above-mentioned current situation, the present invention provides a high-stage frame and a low-stage frame in parallel on a base, and a welding torch is held on the high-stage frame by a movable body that can move in left-right, front-back, and up-down directions. A receiving plate rotatable around a vertical axis is provided on the lower frame at the tip of the movable body, which is movable in the left-right and front-rear directions below the high-stage frame, and an opposing part in front of the receiving plate is provided with a receiving plate that is rotatable around a vertical axis. In addition to arranging a steel plate holding device, a fusing slag receiving box is arranged below the moving range of the receiving plate during fusing, and is placed on the receiving plate close to the position where the receiving plate moves outside the moving range during fusing. This steel plate fusing sorting device is equipped with a transfer device equipped with scraping means that can engage with the placed melted pieces, and is designed to be fully automated.

Below, detailed description will be made based on the embodiments shown in the drawings.
is a fusing robot with a sorting device, and a gate-shaped high-stage frame 3 and a low-stage frame 4 are mounted on a base 2 fixed to the floor.
are arranged in parallel, and a left-right moving body 5 is provided on the high-stage frame 3 so as to be movable in the left-right direction along the frame,
A front-back moving body 6 is provided on the left-right moving body 5 and is movable in the front-rear direction across the frame 3. Further, the front-back moving body 6 has a cutting torch 8 movable in the vertical direction and movable in the vertical direction at the tip of the front-back moving body 6. A vertical moving body 7 is provided which holds a vertically moving body 7.

Reference numeral 9 denotes two guide rails that are fixed in parallel in the left-right direction on the bottom surface of the recess formed on the upper surface of the high-stage frame 3, and 10 indicates a motor on the high-stage frame 3 between the two guide rails 9. 11
This is a long ball screw that is supported so that it rotates forward and backward.

The left and right moving body 5 is integrally provided with sliding bearings 12 that fit with the guide rail 9 at both ends of the lower surface, and a ball screw 10 is provided in the center.
A ball nut 13 is provided which engages with.

Furthermore, the structure of the forward and backward moving body 6 and the vertical moving body 7 as a moving means is the same as that of the left and right moving body 5 described above, with a sliding bearing and a ball nut on the fixed side and a guide rail and a ball screw on the moving side (not shown). 14 and 15 are respective drive motors.

Further, a left-right moving body 16 is provided on the low-grade frame 4 so as to be movable in the left-right direction along the frame, and a back-and-forth moving body 17 is provided on the left-right moving body 16 and movable in the front-back direction across the frame 4. Further, a heat-resistant receiving plate 18 is provided at the tip of the longitudinally movable body 17 and is rotatable by a rotating shaft projecting upward, thereby configuring a sorting device.

The left and right moving body 16 and the front and back moving body 17 have the same moving means as the moving bodies 5 and 6, and 19 and 20 are respective drive motors.

Further, the rotation of the receiving plate 18 is driven by a vertical shaft motor 21 with a speed reducer held by the front-rear movable body 17 via a sprocket and an endless chain.

Reference numeral 22 denotes a raw steel sheet holding device that is arranged in parallel facing the fusing robot 1 with a sorting device, and is slidable in the left-right direction on a base 23 formed in a gate shape and fixed to the floor surface. It consists of a clamping and transferring device 24 that can be used.

The base 23 has a guide rail 25 on the top surface,
Also, guide rails 26 and 2 on the top and bottom of the sides, respectively.
7 is fixed.

Furthermore, the clamping and transferring device 24 has sliding bearings 29, 30,
31 are fixed and the guide rails 25 to 31 are fixed respectively.
27, and on the outer surface facing the robot 1, there is a fixed base 32 integrally formed at the lower part, and an elevating member 34 that can be raised and lowered toward the fixed base 32 by a cylinder 33. A clamping section is configured to clamp the material, and a residual material discharge mechanism 35 using a cylinder is provided between the clamping sections.

36 is a motor 37 on the upper surface of the base 23.
A ball screw rotatably supported by the drive of
The main body 28 can be moved in the left-right direction by engagement with a ball nut 38 provided inside the main body 28.

39 is a raw steel plate carrying device with a positioning mechanism disposed on one end side of the base 23 so that its ends face each other, 40 is a conveyor, 41 is a magnetic roller consisting of a plurality of vertical shafts arranged in tandem, and 42 is a It is Putsiya.

43 is a pit excavated across the raw steel plate holding device 22 to the front of the fusing robot 1, and two rails 44 are laid at the bottom of the pit, and a transport vehicle 45 is engaged with the rails so that it can run on its own. Further, a welding slag receiving box 46 is mounted on the transport vehicle 45 so as to be disposed below the welding work position.

Further, above the slag receiving box 46, a hopper 47 is connected by a bracket (not shown) provided on the fixed part as appropriate.
A large number of cooling water injection nozzles 48 are arranged inside the hopper 47 to receive water supply from the outside.

49 is a fusing slag receiving box 4 at the fusing work position.
6 is a cooling water drainage device attached to a fixed part as appropriate so as to surround the upper three sides of the slag receiving box 46, which is formed in a concave shape so that the slag receiving box 46 can be moved in and out from the receiving tray part 49a and the water collecting pipe 49b which returns the water to the circulating water tank. Become.

Incidentally, an appropriate number of overflow fittings 46a having a length extending beyond the inner edge of the receiving tray portion 49a and reaching into the receiving tray are protruded from two sides of the slag receiving box 46.
It is possible to discharge accumulated water to 6.

50 is a scraping means melted fragment transfer device;
A conveyor 51 is provided so that the starting end is located on the side opposite to the carrying-in device 39, and a scraping cylinder 53 is arranged horizontally, extending from the upper end of the cooling device 52 provided on the conveyor beyond the starting end of the conveyor. A lifting cylinder 54 is provided at the tip of the rod of the cylinder so that the rod can extend downward, and an intermediate member 55 with a two-step hole, a compression spring 56, and a scraper 57 are assembled in sequence at the lower end of the rod of the cylinder 54. is attached to constitute a scraping means, which means collects the melted fragments.
When the receiving plate 18 on which M' is mounted is in a rotating state on the end of the conveyor 51, the cylinder 54 is extended to press the melted fragment M' between the receiving plate 18 and the scraper fitting 57 with a predetermined spring force, By shortening the cylinder 53, the molten fragments M' are scraped onto the conveyor 51 and dropped.

In addition, 58 is a fusing robot 1, a raw steel plate holding device 22, a raw steel plate carrying device 39, a self-propelled transport vehicle 45,
This is a control device that controls the driving of all devices such as the molten fragment transfer device 50, and is designed to be able to perform automatic operations based on a program that has been pre-installed.

Accordingly, based on the command from the control device 58, the main body 28 of the clamping and transferring device 24 is positioned at the position indicated by the two-dot chain line in FIG.
is pushed onto the fixed base 32 by the pusher 42 while in contact with the magnetic roller 41, and is held between the fixed base 32 and the elevating member 34 by the operation of the cylinder 33.

Subsequently, the motor 37 is operated to move the main body 28 to the fusing operation position shown by the solid line in FIG.

Next, as the movable bodies 16 and 17 move, the receiving plate 18 is positioned below a predetermined portion of the raw steel plate M that will become the first melted piece, keeping a slight gap, and at the same time, the movable bodies 5, 6,
The fusing torch 8 traces a predetermined trajectory by moving 7.
melt-cuts the raw steel plate M. At the time of fusing, the fusing slag falls into the slag receiving box 46 through the hopper 47 together with the water while being cooled by water jetted from the sequential injection nozzle 48, and the first fused fragments are received on the receiving plate 18. It will be done.

Next, the movable bodies 16 and 17 move, and the motor 21
The operation rotates the receiving plate 18 on which the melted fragments M' are mounted, and the melted fragments M' are held out toward the conveyor 51 below the scraping fitting 57 in the extended state of the cylinder 53 of the scraping means. (Status shown in Figure 3).

Here, by the contraction of the cylinder 53 following the expansion of the cylinder 54, the molten fragments M' are transferred onto the conveyor 51 and transported to the next process while being cooled by the cooling device 52.

When the cylinders 53 and 54 return to their original positions, the receiving plate 18 also returns to the fusing operation position and waits below the next second melted piece. At this time, the fusing torch 8 is already in the process of fusing the second melted fragments, and by repeating the same action as described above, a predetermined number of melted fragments are created from one raw steel plate M and sequentially transferred to the conveyor 51. .

When the melting of one raw steel plate M is completed, cylinder 3
The elevating member 34 is raised by the contraction of the cylinder 35, and the remaining material is discharged into the slag receiving box 46 by the extension of the cylinder 35.

Next, as the cylinder 35 returns, the motor 3
7, the main body 28 of the clamping and transferring device 24 moves again to the raw material loading device 39 to receive the newly loaded raw material steel sheet M, and the above-described operation is repeated thereafter.

When the cooling water accumulated in the slag receiving box 46 reaches an overflow level, it is discharged from the overflow fitting 46a to the receiving tray 49a, returns to the circulating water tank via the water collection tube 49b, and after being appropriately drained, reaches the injection nozzle 48 again.

In addition, the slag receiving box 46 transmits an appropriate signal such as weight detection to the control device 58 when a predetermined amount of residual material and slag has accumulated, and the transport vehicle 45 is operated according to the signal from the control device to remove the empty slag receiving box. Exchange with 46,
It is made to stand by again at the slag receiving position.

Note that the means for moving each movable body of the fusing robot with a sorting device in the above description is not limited to a separate corrugated ball screw, but may be similarly implemented using other known structures.

As detailed above, according to the apparatus of the present invention, it is possible to easily automate the fusion cutting and sorting of steel plates, and there is no need for any manual intervention when processing fusion slag and remaining materials and sorting and transferring molten pieces to the next process. Because there is no
There is no danger from a moving fusing torch or melted fragments heated to high temperatures, and the overall operation speed can be increased because the sorting and transfer of melted fragments can be carried out in conjunction with the next fusing operation.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a plan view, and FIGS. 2 and 3 are enlarged views taken in the direction of the arrows in FIG. 1, respectively. In the figure, 1 is a fusing robot with a sorting device, 2 is a base, 3 and 4 are high and low frames, and 5, 6, and 7.
1 is a left/right, front/back, and vertical moving body, 8 is a welding torch, 1
6 and 17 are left/right/front/back moving bodies, 18 is a receiving plate, 22
is a raw steel plate holding device, 46 is a welding slag receiving box, 50 is a molten fragment transfer device with scraping means, M is a raw steel plate,
M′ indicates the dissolved fragment.

Claims (1)

[Claims] 1. A high-stage frame and a low-stage frame are provided in parallel on a base, and a welding torch is held on the high-stage frame by a movable body that can move in left-right, front-back, and up-down directions. A receiving plate rotatable around a vertical axis is provided on the lower frame at the tip of the movable body, which is movable in the left-right and front-rear directions below the high-stage frame, and a receiving plate that is rotatable around a vertical axis is provided on the opposite part in front of the receiving plate. In addition to arranging a steel plate holding device, a fusing slag receiving box is arranged below the moving range of the receiving plate during fusing, and is placed on the receiving plate close to the position where the receiving plate moves out of the moving range during fusing. 1. A steel sheet melt cutting and sorting device comprising a melt fragment transfer device with scraping means capable of engaging with melt fragments placed thereon. 2. The movable body for the fusing torch includes a left-right movable body provided on a high frame, a back-and-forth movable body provided on the left-right movable body, and a vertical movable body provided on the back-and-forth movable body and having a fusing torch attached to its lower end. A steel plate fusing and sorting device according to claim 1, comprising: 3. The steel plate fusing and sorting device according to claim 2, wherein each of the movable bodies is movable in the left-right, front-back, and up-down directions by rotation of a ball screw that engages with a ball nut under the guidance of a guide rail. . 4. The steel plate according to claim 1, wherein the receiving plate moving body includes a left-right moving body provided on a low-stage frame, and a back-and-forth moving body provided on the left-right moving body and having a receiving plate at its tip. Fusing sorting device. 5. The steel sheet melt-cutting and sorting device according to claim 4, wherein each of the movable bodies is movable in left-right and front-rear directions by rotation of a ball screw that engages with a ball nut under the guidance of a guide rail. 6. The steel plate fusing and sorting device according to claim 1, wherein the receiving plate is rotatable by a vertical shaft motor with a speed reducer via a sprocket and an endless chain. 7. The steel plate scraping means includes a scraping cylinder extending horizontally from above the transfer device, a lifting cylinder provided vertically downward at the tip of the cylinder, an intermediate member fixed to the rod tip of the lifting cylinder, and a lifting cylinder extending horizontally from above the transfer device. A steel sheet melt-cutting and sorting device according to claim 1, comprising a scraping tool suspended vertically and slidably via a compression spring.