JPH0373373B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION a. Field of Industrial Application The present invention relates to an apparatus for feeding a plate material, which is a workpiece, to a plate positioning device provided on a workbench of a plate processing machine.

B. Prior Art A plate supply device that presses one end of a plate against a plate positioning device, such as a back gauge, provided in a conventional plate processing machine is widely used in shearing machines and the like.

However, in a plate processing machine in which the cutting head moves under numerical control, it is not possible to press one edge of the plate as described above, and it is not possible to press the cutting head to a specific X-axis and Y-axis coordinate position as described above. It is necessary to send in the planks and fix them.

In this case, the final step is to use a gripping and retracting device that grips and pulls a part of the plate into the gripping fixing device and reference stopper described later, and the plate is accurately supplied within the extension range of the gripping claws of the gripping and retracting device. There was no equipment.

c Problems to be Solved by the Invention The above-mentioned variations in the supply position of the plate materials in the conventional apparatus are the problems to be solved by the present invention.

d Means for Solving the Problems The present invention has been made in view of the conventional problems, and is a plate material supplying device that supplies a plate material to a reference position on a workbench of a plate processing machine. A material transport table provided adjacent to the position is provided with a primary transport device for transporting the plate material toward the workbench, and a groove in the transport direction is provided. , a gripping claw capable of gripping an end of the plate material transported by the primary transport device is provided, and the gripping claw is connected to the feeder so as to allow the board material to be transported by the primary transport device. It is provided so that it can freely appear and retract from the top surface of the material table.

e Embodiment FIG. 1 illustrates a part of a workbench 1 for laser-processing materials, in which a plate material 3 to be processed is held by a gripping and fixing device 7 provided on one side of the frame 5 of the workbench 1 described above;
It is finally positioned and fixed by a reference stopper 9 provided on the other adjacent side (material feeding table to be described later) and a gripping and retracting device 11 provided obliquely between the two.

In other words, the X-axis direction line 15 passing through the stepped portion (not shown) of the fixed gripping claw 13 of the gripping and fixing device 7 and the Y-axis direction line 19 passing through the inner surface of the stopper 17 of the reference stopper 9 correspond to cutting (not shown). These are the reference Y and X coordinates for numerical control of the head.

Furthermore, the gripping claws 21 of the gripping and retracting device 11 are shortened from the extended state as shown by the two-dot chain line, and have moved the plate material 3 to the reference X, Y coordinate position.

The lower frame body 5 in FIG. 1 of this embodiment forms a material feeding table 23 having a wide width in the X-axis direction.
A large output motor 25 and a small output motor 27 which circulate through a chain belt (not shown) are provided below the motor 3.

Further, a groove 29 is provided slightly to the right of the center of the material feeding table 23 in FIGS. 1 and 2, and a gripping device 31 shown in FIGS. 6, 7, and 8 is provided in this groove 29.

On both sides of the groove portion 29 described above, there are magnet rollers 3 as a primary conveyance device for primary conveyance of the plate material 3.
3, 33 are provided, and are rotationally driven by a variable speed electric motor 35 via a chain 37, an intermediate sprocket shaft 39, and sprockets 41, 41.

As the primary conveyance device for primary conveyance of the non-magnetic plate material, the pinch roller 4 shown in FIGS. 3 and 4 is used.
3 and 43 are driven by the fluid pressure cylinder 45 to move up and down, grip the plate material 3, and carry it upward in FIG.

The variable speed electric motor 35 is connected with the groove portion 29 mentioned above in between.
Another variable speed electric motor 47 is provided on the opposite side, and a chain 53 runs around from its output shaft sprocket 49 to a sprocket shaft 51 at the rear end (the lower end of the first rotation) of the groove 29.

As is clear from FIG. 1, the gripping device 3 shown in FIG.
A chain 57 is wound around the gripping device 31, and the gripping device 31 is moved forward and backward by being driven by a variable speed electric motor 47.

The gripping device 31 is attached to a channel rail 5 such as a ripped section provided below the groove 29.
It rides on the opening of 9 with a plurality of wheels 61, and is driven by the chain 57 described above and is movable in the X-axis direction.

Further, in the gripping device 31, a swinging part 65 equipped with a fixed gripping claw 63 is pivotally attached to the lower part of the truck part 67 with a shaft 69, and a movable gripping claw 71 is attached to this swinging part 65 and can swing freely with a shaft pin 73. It is attached to the shaft.

A fluid pressure cylinder 75 is provided in the swinging portion 65 near the shaft 69, and its piston rod 77 is pivotally attached to the free end of the movable gripping claw 71.

Further, near the swinging tip of the swinging section 65 (the left end in FIG. 6), for example, a rod 79 is provided so as to be able to swing around the shaft pin 81, and this rod 79 is disposed between the swinging section 65 and the carriage section 67. It is equipped with a compressed version of Eiki 83.

Furthermore, a double nut 8 is attached to the lower end of the rod 79.
5 is provided, and as long as the vicinity of the tip of the swinging portion 65 is not under pressure, the fixed gripping claw 63 can be set to maintain a horizontal state as shown in FIG. Further, an idling roller 87 is provided on the 1 side of the swinging portion 65, and a corresponding material feeding table 23 is provided.
A slope dog 89 is provided in a part of the area.

As shown in FIG. 1, a large number of free ball bearings 91 are installed on the upper surface of the material feeding table 23, and in front of the magnet roller 33 on the right side, the tip and end of the plate material 3 to be carried in are detected. A first detector 93 and a second detector 95 are provided.

Further, detectors 97, 99, and 101 for detecting the moving position of the gripping device 31 are also provided in the groove portion 29 described above.

Since this embodiment is configured as described above, the plate material carried from the processing device in the previous stage past the first detector to the magnet roller is transferred to the magnet roller driven by the variable speed electric motor. Alternatively, under the cooperation of pinch rollers, the distal end is moved past the second detector.

Next, the gripping device, which was placed at a position lower than the surface of the material feeding table by the slope dog, starts moving forward by the variable speed electric motor, and the movable gripping claw is raised by the hydraulic cylinder to grasp the end of the sheet material. reach the edge.

Thereafter, the gripping device grips the end of the plate and moves to a position beyond the Y-axis direction line, and the gripping and retracting device performs the work of positioning and fixing the plate.

f. Effects of the Invention As can be understood from the above description of the embodiments, the present invention provides a plate material supply device that supplies a plate material 3 to a reference position on a workbench 1 of a plate processing machine, and A primary conveying device for conveying the plate material 3 toward the workbench 1 is provided on the material feeding table 23 provided adjacent to the reference position of the table 23, and a groove portion 29 in the above-mentioned carry-out direction is provided. Gripping claws 63 and 71 that can freely grip the ends of the plate material 3 transported by the primary transport device are provided on a freely provided cart portion 67, and the board portion 3 is transported by the primary transport device. The gripping claws 63 and 71 are provided so as to be able to protrude and retract from the upper surface of the material feeding table 23 so as to allow the above-mentioned movement.

As is clear from the above configuration, in the present invention, the material feeding table 23 provided adjacent to the reference position of the workbench 1 is provided with a conveying device for performing a primary conveying action, and a groove 29 in the conveying direction is provided. is provided. The cart portion 67 provided in the groove portion 29 so as to be reciprocally movable includes gripping claws 63 capable of gripping the end portion of the plate material 3 transported by the primary transport device.
71 is provided, and the gripping claws 63, 71 are provided so as to be able to protrude and retract from the upper surface of the material feeding table 23.

Therefore, according to the present invention, when the plate material 3 is transported by the primary transport device, the gripping claws 6
3 and 71 are recessed from the upper surface of the material feeding table 3, so that they do not interfere with conveyance. After the conveyance of the plate material 3 by the primary conveyance device is completed, the gripping claws 63 and 71 are made to protrude from the upper surface of the material feeding table 3, and the plate material 3 is
By grasping the end portion of the plate material 3 and transporting it to the reference position on the workbench 1, the plate material 3 can be accurately transported to the vicinity of the reference position.

Therefore, on the workbench 1, the plate material 3 can be reliably positioned at the reference position.

[Brief explanation of drawings]

1 is a plan view of an embodiment of the device of the present invention, FIG. 2 is a cross-sectional view along the - arrow in FIG. 1, FIG. 3 is a side view from below in FIG. 1, and FIG. right side view,
Figure 5 shows the material feeding table part in the left side view of Figure 1;
Fig. 6 is a side view of the gripping device, Fig. 7 is a left side view of Fig. 6, and Fig. 8 is a state in which the gripping claw portion of the gripping device is swung from Fig. 6 to be positioned lower than the work table surface. FIG. (Explanation of symbols representing main parts of drawings), 7...
Gripping and fixing device, 9...Reference stopper, 29...Groove portion, 31...Gripping device, 33...Magnetic roller, 65...Swinging portion, 67...Dolly portion, 89...
Gradient Doc.

Claims (1)

[Claims] 1 Move the plate material 3 to the reference position on the workbench 1 of the plate processing machine
A plate material feeding device that supplies
A primary conveyance device for conveying the plate material 3 in the direction of the workbench 1 is provided, and a groove portion 29 in the conveyance direction is provided,
Gripping claws 63 and 71 that can freely grip the end of the plate material 3 transported by the primary transport device are mounted on a cart portion 67 that is provided to be able to reciprocate along this groove portion 29.
and the gripping claws 63, 71 are provided so as to be freely retractable from the upper surface of the material feeding table 23 so as to allow the transportation of the material 3 by the primary conveyance device. Plate material feeding device for processing machines.