JP2519110Y2 - Workpiece loading / unloading device for sheet metal processing line - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial field of application) The present invention relates to improvement of a work loading / unloading device in a sheet metal working line.

(Prior art) Conventionally, as a work loading / unloading device in a sheet metal working line, the upper surface of the work is adsorbed by a vacuum pad or an electromagnet, and the work is hung and carried into / out of the working machine. It is common to have

(Problems to be solved by the invention) By the way, the conventional work loading / unloading device described above is
Adsorb the work with a vacuum pad or electromagnet,
Carrying in and out by hanging it. However, if a failure occurs in the suction circuit of the vacuum pad or the electric circuit of the electromagnet, the work is dropped and is dangerous. In addition, when the processed product has holes, there is a problem that it is not adsorbed. Further, since the work is hung, the part that is not adsorbed by the weight of the work hangs down, and the work has a crease, which is a problem in quality.

The purpose of this invention is to improve the above-mentioned problems, by supporting the work from below, it is possible to prevent the work from falling during transportation, improve the safety, and to carry in and carry out the work with holes drilled. At the same time, it is an object of the present invention to provide a work loading / unloading device in a sheet metal working line in which a crease is prevented from being generated in the work and the quality is improved and the origin position of the work is easily positioned.

[Structure of the Invention] (Means for Solving the Problems) In view of the conventional problems as described above, the present invention provides a standby conveyor that supports a plate material to be supplied to the plate material processing machine on one side of the plate material processing machine. Is arranged, on the other side of the plate material processing machine, a work carry-in and carry-out device in a sheet metal processing line in which a carry-out conveyor for carrying out the plate material processed by the plate material processing machine to the next step is arranged, the standby conveyor and the plate material. A loader rail is provided above the processing machine and the carry-out conveyor, and the work supporting device that can move along the loader rail supports the plate material on the standby conveyor from below and conveys it to the plate material processing machine. In addition, a work support hawk capable of supporting the plate material processed by the plate material processing machine from below and transporting it to the carry-out conveyor is vertically movable.

(Embodiment) Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

As the processing machine in the sheet metal processing line, for example, a sheet metal processing line equipped with a laser processing machine will be described in the present embodiment, but the processing machine is not limited to the laser processing machine, and other processing machines such as a punch press. But it's okay.

Referring to FIG. 1, a sheet metal working line 1 includes a work piece picking / feeding device 3 at a work carry-in position arranged in a Y-axis direction (horizontal direction in FIG. 1), and a laser processing machine as a working machine. 5 and a work unloading conveyor 7 at the work unloading position, and is provided with a work loading / unloading device 9 that is movable between the single-workpiece feeding / supplying device 3, the laser processing machine 5, and the work unloading conveyor 7. Has been.

Referring also to FIG. 2, the single-workpiece feeding device 3 is located on the entrance side (left side in FIG. 1) of the sheet metal working line 1 and is orthogonal to the Y-axis direction in the X-axis direction (first The work is loaded and unloaded to the loader rails 11 of the work loading / unloading device 9 described below in the vertical direction). That is, with the standby roller conveyor 13 as the center, the one-piece work feeding device main body 15 is provided on the left and right in contact with the standby roller conveyor 13.

The standby roller conveyor 13 has a plurality of rollers on the mount 17.
Although not shown, the roller 19 is provided rotatably by an electric motor or the like. The work support hawk 21 of the work loading / unloading device 9 described below can be inserted into the space between the rollers 19 and the space between the upper surfaces of the rollers 19 and the upper surface of the gantry 17.

The single-workpiece feeding / supplying device main body 15 has a known structure, and thus will be described briefly. As shown in FIG. 2, a lifter 25 on which the works W are placed is arranged in the lower part of the pedestal 23, and the works W are stacked on the pallet P placed on the lifter 25. A support plate 31 having a plurality of suction pads 29 hung on the lower portion thereof is connected to a fluid pressure-operated cylinder 27 that extends vertically from the upper portion of the pedestal 23.

Further, in order to carry out the work W to the standby roller conveyor 13, a slat roller device 35 having a plurality of slat rollers 33 is formed in a state of surrounding the lifter 25. The slat roller device 35 includes a drive motor 37 and a plurality of sprockets 39 driven by the drive motor 37.
And a chain 41 wound around the sprocket 39. The slat roller 33 is rotatably supported by the chain 41, and the slat roller 33 is arranged only within a predetermined range.

With the above configuration, when one work W placed on the lifter 25 is picked up, the slat roller 33 connected to the chain 41 of the slat roller device 35 is placed at a position where the suction and floating of the work W is not hindered. Rotate 37 and let it stand by. Then, lifter 25 is raised to a predetermined position, and the cylinder
27 is operated to lower the suction pad 29, the uppermost work W stacked on the lifter 25 is sucked by the suction pad 29, and then the cylinder 27 is contracted to lift the work W.

After that, the slat roller 33 of the slat roller device 35
Is driven by the drive motor 37 to a position where the work W can be placed. Then, the adsorption of the adsorption pad 29 is released, the work W is placed on the slat roller 33, and then the drive motor 37 is driven to place the work W placed on the slat roller 33 on the standby roller conveyor 13. Move.

The laser processing machine 5 has a well-known configuration and will be described briefly. As shown in FIG. 1, a work table 45 for mounting a work W is provided on the base 43. Although not shown, the work table 45 is movable in the X axis direction by a motor through a ball screw or the like.

Gate-shaped frame 47 across the work table 45
Is erected, and this frame 47 is guided and guided in the Y-axis direction.
A Y-axis charge 51, which is guided by 49 and is movable, is provided. A Y-axis motor 53 is attached to a part of the frame 47 on the right side wall in FIG.

With the above configuration, the Y-axis carriage 53 is driven by the Y-axis motor 53 to be guided by the guide guide 49 and moved in the Y-axis direction.

In the Y-axis carriage 51, there is provided a processing head which is movable in a direction (Z-axis direction) orthogonal to the drawing in FIG. 1, and a nozzle for irradiating the tip of the processing head with a laser beam. 55 is provided.

A laser oscillating device 57 is provided in the rear part of the laser processing machine 5, that is, in the upper oblique part in FIG. 1, and in this laser oscillating device 57, for example, a laser beam composed of a mixed gas of He, N ₂ and CO ₂ is used. Is oscillated and sent to the nozzle 55 of the processing head, and a predetermined cutting process is applied to the work W together with an assist gas such as oxygen.

When the work W is processed on the work table 45, a plurality of work support pillars 59 (also referred to as sword mountains) that support the work W are arranged in a row, and the work support pillars 59 have an interval in the X-axis direction. The work support hawk 21 of the work carry-in / carry-out device 9 described later is set at an interval such that the work support fork 21 can freely enter. Further, in order to clamp the work W placed on the work table 45, there are provided fixed type clamp devices 61 arranged at a plurality of places and a locate pin 63 for positioning the origin position of the work W.

The work unloading conveyor 7 has a structure similar to that of the standby roller conveyor 13 described above, and is a pedestal 65 extending in the X-axis direction.
Although not shown, a plurality of rollers 67 are rotatably provided by an electric motor or the like. The space between the rollers 67 is set to the work support hawk 21 of the work loading / unloading device 9 described later.
Is set to allow free entry.

Next, referring to FIG. 3 together, the work loading / unloading device 9 includes a loader rail hung on the standby roller conveyor 13, the laser beam machine 5, and the work unloading conveyor 7.
It is provided in 11. A chain 69, for example, is stretched on one side surface of the loader rail 11 for carrying in a work,
A sprocket 75 provided on a bracket 73 of a work supporting device (also referred to as a loader) 71 of the carry-out device 9 is meshed with the chain 69.

A drive motor 77 is provided on the side wall of the bracket 73 of the work supporting device 71.
The sprocket 75 is rotated via 79. The bracket 73 of the work supporting device 71 is hung on the loader rail 11 via a plurality of guide rollers 81.

With the above configuration, when the drive motor 77 is driven, the transmission member
The sprocket 75 rotates through 79, and this sprocket
Since 75 is meshed with the chain 69, the bracket 73 is movable in the Y-axis direction on the loader rail 11 while being guided by the guide roller 81.

A fluid pressure actuated cylinder 83 is vertically provided on the lower surface of the bracket 73 of the work supporting device 71, and a support plate in which a plurality of L-shaped work supporting forks 21 are locked at the tip of a piston rod 85 of the cylinder 83. 87 are connected. Then, between the support plate 87 and the bracket 73, a plurality of guide members 89 that serve as a guide when the work support fork 21 moves up and down.
Is provided.

With the above-described configuration, the cylinder 83 is actuated to support the support plate 87 that holds the plurality of work support forks 21.
Is movable up and down while being guided by the guide member 89,
The work W can be transferred onto the work support fork 21.

A work origin positioning device 91 is vertically provided on the lower surface of the support plate 87.

The work origin positioning device 91 is shown in FIG.
It becomes movable in the direction inclined by 45 degrees with respect to the Y-axis (the direction indicated by the arrow A in the drawing of FIG. 1), and is attached to the lower surface of the support plate 87.
A bracket 95 is slidably engaged with a rail 93 inclined at 45 degrees. The bracket 95 is formed by the support plate 87.
It is connected to a fluid pressure operated cylinder 97 that is fixedly attached to and can move forward and backward. Further, the bracket 95 is provided with a fluid pressure operated cylinder 99, and a support bar 105 having a plurality of suction pads 103 suspended is connected to the tip of a piston rod 101 of the cylinder 99.

With the above configuration, the cylinder 99 is operated while the work W on the work support fork 21 is being conveyed, and the support bar 105
It is held by suction by the suction pad 103 which is further suspended. When the work W is loaded into the laser processing machine 5, the cylinder 97 is operated to position the work W at the origin.
The workpiece W is moved diagonally and brought into contact with the locate pin 63 provided on the laser beam machine 5 and the clamp device 61 to position the origin of the workpiece W.

With the above-described configuration, the operation is as follows. First, the work W, which is the material, is sucked from the lifter 25 by the suction pad 29.
Take one piece at. After taking one sheet, the slat roller 33 is inserted under the work W, and the work W is placed on the slat roller 33.
And carry it out to the standby roller conveyor 13.

When the work supporting device 71 of the work carrying-in / carrying-out device 9 is in the backward position (left side in FIG. 1) which is the standby position, the cylinder
After operating 83 to lower the work support fork 21 from the back surface of the work W, the work support device 71 is moved forward. The work support fork 21 is inserted between the rollers 19 of the standby roller conveyor 13 by advancing.

When the work support fork 21 is raised by the cylinder 83 from this state, the work W is lifted on the work support fork 21, and the drive motor 77 is driven to drive the work support device.
The work 71 is moved forward and the work W is conveyed to above the laser processing machine 5.

In the laser processing machine 5, the free bearing (not shown) for positioning the work origin provided between the work supporting columns 59 is raised from the pass line, the work supporting fork 21 is lowered by the cylinder 83, and the work W is placed on the free bearing. Put on. At this time, the work support fork 21 is positioned so as to enter between the free bearing and the work support column 59.

Then, the suction pad 103 of the work origin positioning device 91 provided in the work support device 71 is moved to abut the work W on the origin of the laser processing machine 5, that is, the abutting surface of the clamp device 61 and the locate pin 63. The suction pad
Reference numeral 103 holds the work W by suction so that the work W does not fall off even while the work is being conveyed.

Next, the work supporting device 71 is retracted, and the work supporting fork 21 is pulled out from the work W so that movement of the work table 45 of the laser processing machine 5 is not hindered. Then, the free bearing of the laser processing machine 5 is lowered, the work W is placed on the work supporting column 59, and laser processing is started.

When the laser processing is completed, the work table 45 of the laser processing machine 5 is returned to the origin position, and the work support fork 21 is advanced again so as to be inserted between the work support column 59 and the free bearing of the laser processing machine 5. Then, the clamp device 61 of the laser beam machine 5 is opened and the work W is released, and the work W is sucked by the suction pad 103 for positioning the origin provided on the work support device 71, and the upper jaw of the work device W clamp device 61 is held. Move to a position to escape from.

After that, the work supporting fork 21 of the work supporting device 71 is lifted by the cylinder 83, the work W is placed on the upper surface of the work supporting fork 21, is moved to the work unloading conveyor 7 side, and the work W is transferred onto the roller 67. , Work support device
One cycle is completed by returning 71 to the standby position, which is the backward limit. The work W transferred onto the roller 67 of the work unloading conveyor 7 drives the roller 67 and is carried out to the next step.

As described above, the work W is supported by the work support fork 21.
Unlike the conventional method of adsorbing the upper surface of the work, since the work is supported from below and the work W is not dropped during the conveyance, the safety can be improved.

Further, since the perforated material and the like can be carried in and carried out and the work W is supported from below, creases due to sagging of the work are less likely to occur, and the quality can be improved. Further, a work origin positioning device for the work loading / unloading device 9.
Since 91 is provided and the work W is sucked and held even during the conveyance, the work W is prevented from being dropped due to the shift and the work W is positioned at the origin easily.

Another embodiment is shown in FIGS. 4 and 5, and this embodiment is intended for a turret punch press as a processing machine. That is, a groove 113 is provided at a position corresponding to the work supporting fork 21 so that the work supporting fork 21 can enter between the free bearings 111 provided on the side table 109 of the turret punch press 107. This groove 1
An auxiliary table 115 is provided so that the auxiliary table 115 can be fitted into the auxiliary table 11.
5 is configured to move up and down.

With the above configuration, when the work W is carried in or out of the side table 109, the auxiliary table 115 is lowered by operating the cylinder. Then, a space for inserting the work supporting fork 21 is formed between the upper surface of the free bearing 111 and the upper surface of the auxiliary table 115 provided in the groove 113, so that the work W placed on the work supporting fork 21 can be placed on the side table. It is possible to place the work W in the machining groove on the side table 109 or to put it on the 109.
The same effect as the embodiment can be exhibited.

Although not shown, it is also possible to mount the free bearing 111 higher by a pedestal or the like and provide a space between the upper surface of the free bearing 111 and the upper surface of the side table 109 to allow the work support fork 21 to move back and forth.

The present invention is not limited to the embodiments described above, but can be implemented in other modes by making appropriate changes.

[Effects of the Invention] As will be understood from the above description of the embodiments, in short, the present invention supports the plate material to be supplied to the plate material processing machine (5) on one side of the plate material processing machine (5). Sheet metal processing in which a standby conveyor (13) is arranged, and on the other side of the plate material processing machine (5), a carry-out conveyor (7) for carrying out the plate material processed by the plate material processing machine (5) to the next step is arranged. In the work loading and unloading device in the line, the standby conveyor (13), the plate material processing machine (5), and the unloading conveyor (7)
A loader rail (11) is provided over the position above, and a work supporting device (71) movable along the loader rail (11) supports the plate material on the standby conveyor (13) from below. A work support hawk (21) that can be transported to the plate material processing machine (5) and that supports the plate material processed by the plate material processing machine (5) from below and can be transported to the carry-out conveyor (7) can be moved up and down. It is provided in.

As is apparent from the above configuration, in the present invention, the loader rail 11 is provided over the standby conveyor 3, the plate material processing machine 5, and the carry-out conveyor 7 and is movable along the loader rail 11. In the provided work supporting device 71, the plate material on the standby conveyor 13 is loaded into the plate material processing machine 5
Further, a work supporting fork 21 capable of transporting the plate material on the plate material processing machine 5 to the carry-out conveyor 7 is provided so as to be vertically movable, and the work supporting fork 21 supports the plate material from below.

Therefore, according to the present invention, it is common to carry in the plate material from the standby conveyor 3 to the plate material processing machine 5 and to carry out the plate material processed by the plate material processing machine 5 from the plate material processing machine 5 to the carry-out conveyor 7. This can be done by 21, and the overall configuration can be simplified. Further, when the work support hawk 21 conveys the plate material, the work support hawk 21 supports the plate material from the lower side, so that the plate material does not drop during the conveyance, and the plate material can be conveyed safely and reliably. It is possible.

[Brief description of drawings]

FIG. 1 shows the main part of the present invention, a plan view of the entire layout of the sheet metal working line, FIG. 2 is an enlarged side view seen from the left side in FIG. 1, and FIG. 3 is a view taken along the arrow III in FIG. An enlarged front view, FIGS. 4 and 5 show another embodiment, FIG. 4 is a plan view of a turret punch press, and FIG. 5 is an enlarged side view of a V arrow portion in FIG. 1 …… Sheet metal processing line 3 …… Single-workpiece feeding device 5 …… Laser processing machine 7 …… Work carry-out conveyor 9 …… Work carry-in and carry-out device 19 …… Roller 21 …… Work support fork 59 …… Work support Pillar, 67 …… Roller 71 …… Work support device 91 …… Work origin positioning device

Claims (2)

(57) [Scope of utility model registration request] 1. A standby conveyor (1) for supporting a plate material supplied to the plate material processing machine (5) at one side of the plate material processing machine (5).
3) is arranged, and a work in a sheet metal working line in which a carry-out conveyor (7) for carrying out the plate material processed by the plate material processing machine (5) to the next step is arranged on the other side of the plate material processing machine (5). In the carry-in / carry-out device, a loader rail (11) is provided over the standby conveyor (13), the plate material processing machine (5) and the carry-out conveyor (7), and the loader rail (11) is movable. Work support device (7
In 1), the plate material on the standby conveyor (13) can be supported from below and conveyed to the plate material processing machine (5), and the plate material processed in the plate material processing machine (5) can be supported from below. A work loading / unloading device in a sheet metal working line, comprising a work supporting fork (21) vertically movable so that it can be transported to the unloading conveyor (7). 2. The sheet metal working line according to claim 1, further comprising a pad (103) for holding the plate material supported by the work support fork (21) so as not to slip off. Work loading / unloading device.