JPS6352949A - Output device for workpiece in laminar material processing machine - Google Patents

Abstract

PURPOSE:To prevent the occurrence of failure in cutting processing motion due to poor discharge of a workpiece, by a method wherein a conveyor, interconnecting a processing position and the outside of a machine, is situated to an output device for a workpiece by a punch press unit, and a workpiece detecting device is situated in the middle of an output passage. CONSTITUTION:When a rectangular punching die is produced, an opening and closing table part is closed, a hydraulic cylinder 15 is brought into a contracted state, and by using tools 11 and 13 on tarrets 18 and 19 to effect punching in a position A in a state in that a coupling part is left unpunched. Thereafter, with a material moving table 5 actuated, the hole is moved in a punching posi tion B, the coupling part is positioned and stopped in the punching position B. A device 10 on the die side is raised, with the cylinder 15 side also expanded, a punch tool 12 is driven downward to punch the coupling part. The punching die is delivered to a belt conveyor device 36 in a state to be completely separat ed away from a laminar material W to be processed, and is stored in a given box. In this case, when a detecting device 57 does not confirm the punching die, operation itself of a punch press is stopped for emergency.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a work piece delivery device in a plate processing machine such as a punch press machine or a laser processing machine.

[Conventional technology]

In plate processing machines such as punch press machines and laser processing machines equipped with plasma cutting equipment, laser cutting equipment, etc., cut pieces of arbitrary shapes can be obtained from a raw material plate.

In other words, for example, in a laser processing machine, by sequentially moving a known work holder by a predetermined amount in a predetermined direction, a plate placed on a table can be brought to an arbitrary position on the plate at the laser irradiation position (processing position). At the processing position, cut pieces of any shape can be separated from the raw material plate.

However, because the cut pieces separated at the processing position have various shapes and sizes, and because laser processing heads, press heads, etc. are located close to the processing position,
Due to the fact that no large-scale unloading device is installed near the processing position, no suitable device for transporting cut workpieces out of the machine has yet been developed.

[Problems to be Solved by the Invention] Based on the above circumstances, the present invention aims to provide a workpiece unloading device suitable for a plate processing machine I, and to provide a workpiece unloading device suitable for a plate processing machine I. It is an object of the present invention to provide a device for carrying out a work piece that can accurately detect whether or not it has actually been carried out, and also enable smooth operation of a plate processing machine itself.

[Means for deciding issues]

The workpiece unloading device that achieves the above purpose is a conveyor device installed under the sheet material supply table of a sheet processing machine that connects the processing position and the outside of the machine, and has a step or a chevron-shaped raised part in the middle of the unloading path. , and a work piece detection device is provided at the relevant position.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which a carry-out device of the present invention is applied to a punch press machine having two punching positions will be described below with reference to the drawings.

FIG. 2 is an overall perspective view of the turret punch press machine of this embodiment.
A press machine main body (4) equipped with two sets of punching devices (2) and (3) constituting the two punching positions (A) and (B) described in detail above, and a desired part of the workpiece plate material (W) are It consists of a material moving table device (5) for bringing the punching devices (2) and (3) into position and moving them. (6) is a trapezoidal base frame of the material moving table device (5).

Two sets of punching devices (2) (
3) consists of a punch side drive device (7) (8) provided at the top of the C-shaped frame (]) and a goo side device (9) (10) provided at the bottom (first In the figure, the punch tool (11) connected to the punch side drive device (7) (8) (
1, 2) and the goo tool of the goo side device (9) (10) <1
8) The plate material (W) inserted between the punching tool (A4) and the punching tool (11) and (12) are driven downward to punch the plate material (W).

The punch side drive devices (7) and (8), as shown in the first diagram,
A drive device (8) consisting of a hydraulic cylinder (15) is disposed on the front side of the frame, and a drive device (7) consisting of a vertically moving ram (17) connected to a crankshaft (16) is disposed on the rear side of the frame. The drive side device (9) () and 0 month correspond to the positions corresponding to the drive device (71C8), respectively, but the punching device @ ( on the rear side of the frame)
A large number of the punch tool (11) and die tool (13) of 2) are loaded on the same circumference of the upper and lower turret disks (18) (1'J) that rotate in the same manner as in a known turret punch press machine, The type of tool brought to the punching position (A) is changed by rotating the turret discs (18) and (19).

Note that the hydraulic cylinder (15) has a cylinder rod (1
5a) side is fixed to the frame (1), and the piping (21)
When pressure oil is supplied through the cylinder (15b), the cylinder (15b) side moves downward, and the punch tool (12) fixed to the lower end of the cylinder (15I) moves downward.
(Fig. 5), the guide side device (10) is also as shown in Fig. 4'.
The cylinder rod (22a) of the hydraulic cylinder (22) installed on the lower part of the frame (1) is connected to the vertically moving member (23).
) and fix the die tool (II) to the hydraulic cylinder (2).
Due to the expansion and contraction of 2), the tool moves up and down between the lower position shown by the solid line in FIG. 4, where the tool is sunk under the table, and the upper position shown by the chain line, where it appears above the table. (24) is a guide tube for the vertically movable member (23).

In Fig. 4, (25) is continuous with the guide tool (]li) and extends rearward (in Fig. 1, for convenience, it is shown as extending to the left) through the vertically movable member (23). It is a discharge chute for punched pieces, and the discharge chute (25
) and further fall onto the external fixed chute (26), the punched pieces are combined with the punched pieces punched by the rear punching device (2), and the slag receiver (not shown) is discharged into the box. .

Next, the material moving table device (5) will be explained.
As shown in FIG. 2, the material moving table device (5) includes a carriage (29) that moves on a rail C27)<28) fixed on a base frame (6) and extending in the rearward direction. Left and right moving table (31) (32
), and a fixed table (3) located between the movable tables (31) and (32) and fixed on the base frame (6).
3), and a work holder (31) (see Fig. 1.3) which is driven to move left and right on the carriage (29), and the carriage (29) and the left and right tables (31 bar 32) are The heights of the left and right tables (3I) (32) and the central fixed table (33) are set to be the same, and the carriage (29) and table (31) are connected to the base frame (6). (32
) and the horizontal movement of the work holder (3, 1) with respect to the carriage (29) are driven by the screw engagement of a ball screw (not shown) with a ball knife and the rotation of a servo motor connected to the ball screw. It has become.

Then, the position of the central fixed table (33) where the punching device (3) is provided (punching position (13)
) is equipped with the following chute equipment for the separated work pieces.
ff (33) and a chute device (35).
A continuous belt conveyor device (36) is provided centrally on the base frame (6).

That is, as shown in FIG. 3.4.5 in plan view, front view, and side view, a part (37) of the fixed table (33) including the punching position (B) inside is attached to the hinge (38).
It is designed to be opened and closed downward through the opening/closing table portion (37), and a chute is formed by punching and separating plate pieces on the upper surface of the opening/closing table portion (37).

(39th month) This is a hole in which the goo tool (11) drilled at the punching position (I3) of the opening/closing table part (37) floats above the table. The driving cylinder (・12) is the same (j
A table (31,) (3) including a closed table part (37)
2J (33) A large number of reversing ball devices are installed on the entire surface to facilitate the movement of plate materials, but among these many reversing ball devices (12), the one installed on the fixed table (33) is As the carriage (29) moves, it is made to sink under the table (33) in order by the action of the cam (13), which will be described later.
Is the free-rotating ball device (12) available for use as follows?・It's turned.

In other words, the free-rotating ball device (in December, the carriage (2
9), the work holder (34) moves perpendicular to the fixed table (33), so in order to avoid the lower surface of the work holder (3°t) colliding with the ball, the table (33) It sinks downward, and the table part (33a) (third
In the free-rotating ball device (42) shown in the figure, each row of free-rotating ball devices (42) connected to the left and right are directly connected to the moving table (42).
The cams (32) protruding from the table (33) are designed to be moved one row at a time under the table (33).
Since the table portion (37) can be opened and closed, it cannot be directly moved up and down with respect to the table surface by the cam (43), and the free-rotating ball device (42) is moved to the rod C44a of the cylinder (44). ) Fixed at the end No. 51
In the figure, the changeover switch (45) of the valve for telescopic switching of the cylinder (44) is made to face the cam (43) protruding from the movable table (32), and the cam (43) is connected to the table (43). 32) is moved back and forth, and by kicking and activating the switch (-15) of the valves lined up l1lq under the table (33) (Fig. 3), the opening/closing table part (37) and its left and right sides are opened and closed. Idle ball device (42)
is becoming immersive.

Next to the openable/closable table part (37), as shown in Figure 1.5, there is a fixed table (33) below the base frame (6) for carrying out the punching die as shown below. A belt conveyor device (36) is provided.

In other words, this bell) conveyor device (36) c.
As shown in the figure, there is a relatively long horizontal conveyor unit (16) in front, and a conveyor unit (16)
) with a relatively short and inclined conveyor unit (,17) at the rear, and two units (46 units (, 17)).
17,1, and the front end of the conveyor unit (-1f) protrudes forward of the base frame (6) so that the punching die (~Va) that is discharged falls into a receiving box (not shown) outside the machine. (Fig. 1.2), and the rear end of the conveyor unit (47) is positioned at the open position of the opening/closing table portion (chute) (37) (see dashed line in Fig. 5).

(18) is the drive motor for the belt (49) hanging roller (interlocking connection <52) on the unit (16) side;
(53) The other hanging roller (
5, January Chain (55) Connected units (17)
This is a roller for hanging the side belt (56), and both conveyor units (46) (・17) are driven by the drive motor (18).
] run synchronously.

In particular, the following punching die detection device (57) is installed in front of the conveyor unit (17), which is installed at an angle as described above, to confirm that the punching die is being carried out and to detect failures due to malfunction. We are trying to avoid this.

Since the conveyor unit (46) and the conveyor unit (47) are provided with the stepped portion (36a) as described above, the punching die (Wa) that is sent forward over the conveyor unit (47) is ) is pushed forward greatly and then falls onto the conveyor unit (46), but due to the forward protruding position of the punching die (Wa), the horizontal axis (58 ), and a charging switch (61) that emits a beam of light (60) across the swing locus of the detection arm (59) is installed. By protruding forward, the detection arm (59) swings, and the detection arm (59) blocks the light beam, as shown in FIG. 6, thereby confirming the punching die (Wa).

(62) is a bracket.

Note that the punching device (3) at the punching position (B)
If a confirmation signal of the punching die is not obtained from the detection device (57) after the punching operation, it is assumed that some abnormality (punching is not completed or the punching die has fallen off the chute path or delivery path, etc.) has occurred. , the operation of the punch press is stopped.

In addition, instead of the stepped portion <363), the idler roller (30) in the middle of the belt conveyor (36) is provided at a slightly higher position, as shown schematically in FIG. 36b), the punching die (Wa,) sent there performs the forward protrusion operation as described above, and the detection device (57) provided on the chevron-shaped protuberance (361)) detects the punching die (Wa). The structure of the detection device (57) is not limited to that described above; for example, instead of the photoelectric switch (61), a detection arm (59) may be used.
It may be activated by the swinging motion of the die, or it may be configured with a photoelectric switch that emits a light beam so as to traverse the locus of the forward protruding motion of the punching die (~Va).

Next, the processing method in the above embodiment will be explained. For example, when obtaining a rectangular punching die (Wa) as shown in the third figure, the opening/closing table portion (37) is first closed, and the hydraulic cylinder ( 15) and (22) are both in the shortened state, use a suitable tool (+1) (13) 8 on the turret (+8) (19) to punch a rectangular contour hole (wb) at the punching position (A). is punched out leaving one to several thin connecting parts (Wc).

The number of connecting parts (W c ) to be left is determined according to this jaw, the thickness of the plate material, the width of the connecting part (W c ), etc. If you set the number to the minimum within the range that the punching die (~Va) will not easily come off even if you grab it and move it, you can later set the connecting part (~'Jc) at the punching position (8). The time required for punching and cutting is reduced.

Once the rectangular profile hole (~vb) has been drilled as described above, the material moving table device (5) is operated to make the hole (~vb).
Wb) is brought to the punching position (B), and the connecting portion (Wc) is positioned and stopped at the punching position (B) (
Figure 3).

First, the goo side device (10) is connected to the cylinder (22).
) by stretching it (Figure 4, chain line U1).
Next, extend the cylinder (■5) side and punch tool (12).
is driven downward to punch out the connecting portion (Wc) (two-dot chain line in Fig. 1).

The punched pieces (slug) punched out at this time are discharged through the discharge chutes (25) and (26) as described above.

l - Once all the connecting parts (Wc, l) at several places are cut by repeating the above operation, the punching die (~Va) is completely separated from the workpiece plate (~■), so the opening/closing table part (37) i If you open it, the table part (37) (
The punching die (LVa) slides on the table (
33) Delivered to the lower belt conveyor device (36),
It is carried to the front of the aircraft and stored in a designated box.

At this time, if the detection device (5υ) on the belt conveyor device (36) does not confirm the punching die (Wa),
As described above, the operation of the punch press machine itself is stopped in an emergency.

In addition, the punching die (Wa) as described above is used as the workpiece plate material (Wa).
, l, first punch out only the contour holes (Wb) leaving the connecting portions (Wc) at multiple locations at the punching position (A), then punching at the punching position (B).
) at the connecting part (
The cutting of the connecting portion (Wc) in B) may be repeated.

Further, the conveyor device (36) is not limited to the punch press machine described above, but can be applied to a laser processing machine, a plate material processing machine equipped with plasma cutting equipment, and the like.

〔Effect of the invention〕

As is clear from the above description, the workpiece unloading device of the present invention is suitable for unloading workpieces separated from a raw material plate in plate processing machines such as punch press machines and laser processing r&s. Since this can be reliably confirmed, the plate processing machine itself can be operated smoothly without causing troubles such as failure of the next cutting operation due to failure in ejecting the work piece.

[Brief explanation of the drawing]

Fig. 1 is a side view of the workpiece unloading device according to the present invention;
The figure is an overall perspective view of the punch press machine equipped with the workpiece delivery device, and FIG. 3 is a plan view of the material moving table device.
Fig. 4 is a partially sectional front view of the opening/closing table part, Fig. 5 is a partially sectional side view of the opening/closing table part, and Fig. 6 is a side view of the punching die detection device (enlarged section ■ in Fig. 1). ), FIG. 7 is a front view of the detection device, and FIG. 8 is a side view showing another embodiment of the work piece delivery device. (1)... Frame, (2+(3)... Punching device, (・1)... Press machine body, (5)... Material moving table device, (33)... Fixed table, (35)... Chute device, (36)... Belt conveyor device,
(36a)...stepped part, (361))...raised part,
(5 full...detection device. (~V)...work plate material, (ItVa)...
Punching die. Part 2, Part 6, 5゛3, 50th

Claims (1)

[Claims] A conveyor device for carrying out workpieces discharged at a processing position, which is installed under a plate supply table of a plate processing machine, and includes a conveyor device having a stepped portion or a chevron-shaped raised portion in the middle of a conveying path, and a conveyor device having a stepped portion or chevron-shaped raised portion in the middle of a conveying path 1. A workpiece unloading device for a plate processing machine, comprising a workpiece detection device provided on a raised portion.