JPH11347662A - Stacking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the machining efficiency by inverting works with their end surfaces arranged, and stacking the works when the works pressed by a press are carried to a bending machine. SOLUTION: An unloading device 3, an inverting device 4 and a lifter table 5 are installed in the vicinity of a plate working machine 1, the unloading device 3 sucks works W and butts them against a stopper 304 to arrange their end faces T, the works W with their end faces T arranged are fixed, and moved to the inverting device 4 side together with a table 310, the inverting device 4 sucks the works W released from the table 310 of the unloading device 3, and inverts the works upside down to the lifter table 5 side with the end faces T arranged, and the lifter table 5 successively stacks the works W which are released from the inverting device 4 and inverted upside down with the end faces T arranged.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an accumulating apparatus, and more particularly to an accumulating apparatus for inverting and accumulating a work machined by a press machine by inverting the end face of the work when the work is transported to a bending machine. About.

[0002]

2. Description of the Related Art It is well known that a work is first processed by a press machine and then the work is processed by a bending machine.

For example, as shown in FIG. 4, a work W is punched by a turret punch press 50 as a press machine to form a hole A, and then the work W is conveyed to a press brake 80 as a bending machine. This is a case where a product having a flange F is processed by the press brake 80.

In this case, works W are taken one by one from a single-sheet picking device 60 installed in front of the turret punch press 50, loaded into the turret punch press 50, and the work W is gripped by the clamp 54 and processed. Position to K,
It is placed on the corresponding die D.

At the processing position K, when the punch P arranged on the upper turret 52 is hit with the ram striker 51, the punch P is cooperated with the die D arranged on the lower turret 53 immediately below the punch P. The work W placed on the die D is subjected to a punching process, and a hole A is formed.

Next, the work W having the hole A formed thereon
Are collected in an unloading device 70 installed behind the turret punch press 50.

The accumulated work W is conveyed to the next press brake 80 and, for example, by lifting the lower table 83, the lower blade 82 attached to the lower table 83 and the upper blade 81 are attached. Upper blade 8
The work W is bent in cooperation with 1 to produce a product with a hole A having a flange F.

[0008]

However, in the above prior art (FIG. 4), the work W carried out to the unloading device 70 is punched by a turret punch press 50 at the preceding stage as shown in FIG. The burrs B formed on the periphery of the hole A are piled downward.

Therefore, the work W with the burr B facing downward is
When bending is performed by the press brake 80 as it is, the burr B projects outside the product (FIG. 4A).
Right end).

As a result, the surface on which the burr B of the product protrudes is
In the case of joining with other metals, there are various adverse effects such as the burrs B obstructing.

Therefore, in order to eliminate this adverse effect, conventionally, as shown in FIG.
The work W accumulated at 0 is inverted by 180 ° so that the burr B faces upward.

When the work W with the burr B facing upward is conveyed to the press brake 80 and bent, the burr B becomes hidden inside the product (FIG. 4).
(Right end of (B)), the adverse effect is eliminated.

However, conventionally, the reversal of the work W is manually performed, and the reversal work is performed one by one, so that the work is extremely troublesome and time-consuming, and the processing efficiency is reduced.

Further, the end faces T of the workpieces W integrated in the unloading device 70 are not aligned, and the work of aligning the end faces T has been left to human labor.

For this reason, as in the above-described reversing work, aligning the end faces T for each work piece is extremely troublesome and time-consuming, resulting in low processing efficiency.

An object of the present invention is to improve the processing efficiency when a work machined by a press machine is conveyed to a bending machine by inverting and accumulating the work with its end faces aligned. .

[0017]

According to the present invention, an unloading device 3 and a reversing device 4 are provided in the vicinity of a sheet material processing machine 1 as shown in FIGS.
The lifter table 5 is installed. The unloading device 3 sucks the work W carried in from the plate processing machine 1 and abuts against the stopper 304 to align the end faces T. The table 310 is moved to the reversing device 4 side while being fixed.
The work W released from the table 310 of the unloading device 3 is sucked and turned to the lifter table 5 side with the end face T aligned, and the lifter table 5 is turned over.
There is provided an accumulating device characterized by sequentially accumulating the inverted work W released from the reversing device 4 with the end faces T aligned.

Therefore, according to the present invention, for example, the unloading device 3 is provided by the pulling pad 300, the free bear table 310 having the stopper 304 and the clamp 309 (claim 2), and the reversing device is provided. And the reversing arm 401 provided with the suction pad 402 (described in claim 3), the work W carried in from the plate processing machine 1 is sucked by the drawing pad 300 and abuts against the stopper 304 to end face T. When the free-bearing table 310 is moved while holding the work W with the clamp 309 and is inserted between the reversing arms 401 of the reversing device 4 at the next stage (FIG. 1), the work having the end faces T aligned is obtained. The workpiece W released from the clamp 309 is gripped by the suction pad 402 of the reversing arm 401 (FIG. 3). It can be turned over and reversed to the lifter table 5 side.

Therefore, in the lifter table 5, the inverted works W released from the suction pads 402 of the reversing arm 401 can be sequentially accumulated with the end faces T aligned, thereby improving the processing efficiency.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the accompanying drawings according to embodiments. FIG. 1 is an overall view showing an embodiment of the present invention.
Is a single-sheet pick-up device, 3 is an unloading device, 4 is a reversing device, and 5 is a lifter table.

In FIG. 1, a plate material processing machine 1 is, for example, a turret punch press.
Is gripped by the clamp 100, and the clamp 100 is moved in the X-axis direction and the Y-axis direction to be positioned at the processing position K, the ram striker 108 is operated, and the punch P disposed on the upper turret 106; Lower turret 1
This is a processing machine that performs punching such as drilling on the work W by cooperation of a die D arranged at 07.

In front of the turret punch press 1,
The single-sheet pick-up device 2 is installed via the auxiliary table 6.

The single-sheet picking device 2 has a lifter 206 on which a material pallet 205 is placed.

The guide rail 201 extends from above the material pallet 205 to the front table 102 of the turret punch press 1 so that the loader 200 can travel.

A stretch 203 is attached to the loader 200 via upper and lower cylinders 202, and a suction pad 204 is attached to the stretch 203.

With this configuration, the upper and lower cylinders 202 are operated to lower the suction pad 204 together with the stretch 203 to suck the uppermost work W on the material pallet 205.

Then, the upper and lower cylinders 202 are actuated again, the suction pad 204 holding the work W is lifted, and the loader 200 is moved along the guide rail 201. Then, the work W is transferred to the turret punch press 1. Can be brought in.

On the other hand, in the vicinity of the turret punch press 1, for example, at the rear (right side in FIG. 1), an auxiliary table 7 is provided.
, An unloading device 3, a reversing device 4, and a lifter table 5 are installed.

The unloading device 3 has a free bear table 310.
Table 10 of the turret punch press 1 from above
3 until the guide rail 306 extends and the unloader 30
5 can run.

The unloader 305 includes the upper and lower cylinders 31.
1, a stretch 307 is attached to the stretch 307, and an unloader clamp 308 is attached to the stretch 307, for example, a hole A processed by the turret punch press 1.
(FIG. 1) is adapted to grip an end face T of the punched work W.

With this configuration, the upper and lower cylinders 311 are operated to extend the unloader clamp 308 to the stretch 307.
At the same time, the turret punch press 1 is lowered to the rear table 103.

In this state, the unloader clamp 308 grasps the end face T of the work W having the hole A, and operates the upper and lower cylinders 305 again to raise the unloader clamp 308 grasping the end face T of the work W, thereby unloading the work. 305
Is moved along the guide rail 306, the work W can be moved onto the free bear table 310.

Above the free bear table 310, on the beam frame 312, a draw pad 300 is provided, and near the lower part of the draw pad 300, near the edge of the free bear table 310. Is provided with a stopper 304 and a clamp 309, respectively.

The draw pad 300 is a pillar column frame 312.
The drawing cylinder 303 fixed to the
The vertical cylinder 302 is vertically attached to the tip of the rod 03, and the suction pad 301 is attached to the rod of the vertical cylinder 302.

With this configuration, the work W conveyed onto the free bear table 310 by the unloader 305 is
First, the upper and lower cylinders 302 are actuated to suck the suction pad 301 down, and then the suction cylinder 303 is actuated to strike the stopper 304 to align the end faces T of the workpiece W.

Then, the work W having the aligned end faces T is
It is gripped by a clamp 309 provided in the vicinity of the stopper 304, and is moved together with the free bear table 310 to the next-stage reversing device 4 by a chain 313 as a moving means described later.

The free bear table 310 is provided at substantially the same height as the tables 101, 102 and 103 of the turret punch press 1.

As is well known, the free bear table 310 has a comb blade shape as a whole, and a free bear is mounted on an upper surface of each comb blade to receive a work W thereon.

The free bear table 310 is slidably connected to the LM guide 314 (FIG. 2), and the chain 313 (FIG. 3).
, And the chain 313 is wound around a driving sprocket 315 and a driven sprocket 312.

The chain 313 extends from the unloading device 3 to the reversing device 4 at the next stage.
When the drive sprocket 315 is started and the drive sprocket 315 is rotated, the chain 313 circulates and moves the free bear table 310 toward the reversing device 4 while holding the work W having the aligned end faces T with the clamp 309. be able to.

The reversing device 4 includes a plurality of reversing arms 401.
And has a comb blade shape as a whole (FIG. 1).

Each reversing arm 401 is disposed between the respective comb blades of the free bear table 310 and a chain 313 is provided.
When the free bear table 310 is moved to the reversing device 4 side by driving the
Ten comb blades enter between the reversing arms 401 (FIG. 1).

That is, each comb blade of the free bear table 310 can enter between each comb blade of the reversing device 4.

Each reversing arm 401 is coupled to a rotating shaft 403 driven by a motor M2, and is configured to rotate 180 ° toward the lifter table 5 (FIG. 3).

The reversing arm 401 has a suction pad 402 on its upper surface.

With this configuration, the reversing device 4 allows the free bear table 3 moved from the unloading device 3 to move.
After each of the comb blades 10 enters between the reversing arms 401, the work W having the aligned end faces T placed on the free bear table 310 is sucked by the suction pad 402, and the work W is released from the clamp 309. .

Then, the motor M2 is driven to
3 rotates the reversing arm 401 by 180 °, and lifts the workpiece W with the end face T aligned.
It can be turned over and turned over.

The lifter table 5 is provided with the reversing device 4
Is installed below the position rotated by 180 ° (FIG. 3).

The lifter table 5 is provided with a suction pad 402 of a reversing arm 401 which is turned to the lifter table 5 side.
When the work W is released from, the work W turned upside down is sequentially accumulated with the end faces T aligned (FIG. 3).

The lifter table 5 has holding means 501 and 502 for keeping the stacking height constant. By controlling the height of the lifter table 5, the work W having the end faces T aligned is always at a fixed height position. It is designed to accumulate.

The holding means 501 and 502 for keeping the stacking height constant
For example, by detecting the upper surface of the work W which is configured by an upper surface photoelectric sensor and is integrated with the upper surface photoelectric sensor,
The height of the lifter table 5 is moved up and down, and the works W having the end faces T aligned are always accumulated at a constant height position.

The operation of the present invention having the above configuration will be described below.

(1) Operation from loading of work W to processing. From the single-sheet pick-up device 2, the work W
Is taken, the loader 200 is moved along the guide rail 201, and the work W is carried into the turret punch press 1 via the auxiliary table 6.

In the turret punch press 1, the loaded work W is gripped by the clamp 100 and positioned at the processing position K (FIG. 1).
Is operated, and the work W is perforated, for example, by the cooperation of the punch P and the die D.

As a result, a hole A is formed in the work W (FIG. 1), and the burr B formed on the periphery of the hole A faces downward (FIG. 2).

(2) Operation from unloading of the work W to alignment of its end face T.

The upper and lower cylinders 311 are actuated to lower the unloader clamp 308 to the rear table 103 of the turret punch press 1, grasp the end face T of the work W on which the downward burr B is formed, and move the unloader 305 along the guide rail 306. The workpiece W
Out.

Thus, the work W on which the downward burrs B are formed is conveyed to a position above the free bear table 310 and released from the unloader clamp 308 to be placed on the free bear table 310.

Then, the work W is drawn toward the stopper 304 by the drawing pad 300 and is brought into contact with the stopper 304 to align the end faces T of the work W.

(3) Operation until the workpiece W having the aligned end faces T is moved to the reversing device 4.

The work W whose end face T is aligned by abutting against the stopper 304 is moved to the free bear table 3.
When the motor M1 is gripped by the ten clamps 309 and the motor M1 is driven, the free bear table 310 is moved by the circulation of the chain 313 to the reversing device 4 at the next stage.

At this time, after each comb blade of the free bear table 310 has completely entered between the comb blades constituted by the reversing arm 401, the rotation of the motor M1 is stopped.

(4) Inversion operation of the work W.

When each comb blade of the free bear table 310 enters between the comb blades of the reversing device 4 (FIG. 1), the work W having the end faces T placed on the free bear table 310 is removed. , Suction pad 40 of each reversing arm 401
Then, the work W is released from the clamp 309.

That is, the work W having the aligned end surfaces T is gripped from the clamp 309 of the free bear table 310 to the suction pad 402 of the reversing arm 401.

In this state, if the motor M2 is driven, the reversing arm 401 rotates 180 ° via the rotating shaft 403 (FIG. 3), and the work W sucked by the suction pad 402 is removed.
In a state where the end faces T are aligned, it can be turned over to the lifter table 5 side.

At this point, the burrs B formed on the work W
Is facing upwards.

(5) Work W integration operation. Above the lifter table 5, as shown in FIG. 3, the reversing arm 401 is stopped at a position rotated by 180 °.
The work W on which the burr B is turned upside down and the burr B faces upward is sucked by the suction pad 402 of the reversing arm 401.

Therefore, the work W
Is released, the burr B of the work W is directed upward,
In addition, they are sequentially stacked on the lifter table 5 with the end faces T aligned (FIG. 3).

At this time, the upper photoelectric sensors 501 and 502
Accordingly, if the upper surface of the work W is detected, the height of the lifter table 5 can be moved up and down, and the work W with the burrs B facing upward and the end faces T aligned is always accumulated at a constant height position. It is possible.

In this way, since the workpieces W can be inverted and accumulated in a state where the end faces T of the workpieces W are aligned, the processing efficiency is extremely improved as compared with the conventional manual operation (FIG. 4).

When the work W with the burrs B facing upwards as described above is conveyed to a bending machine such as a press brake (FIG. 4), a product in which the burrs B are hidden inside can be formed.

In this embodiment, the case where the present invention is applied to a turret punch press has been described in detail. However, the present invention is not limited to this, and may be applied to other plate processing machines such as a laser processing machine. Of course, the same effect can be obtained.

[0074]

As described above, according to the present invention, according to the present invention, an unloading device, a reversing device, and a lifter table are installed near a plate material processing machine, and the stacking device is carried in from the plate material processing machine by the unloading device. The work is sucked and abutted against a stopper to align the end faces, and the work with the aligned end faces is fixed and moved together with the table to the reversing device side, and the reversing device sucks the work released from the table of the unloading device. By turning over the lifter table side and turning it over with the end faces aligned, by using the lifter table, the inverted work released from the reversing device is configured to be sequentially stacked with the end faces aligned,
When a work machined by a press machine is transported to a bending machine, it is possible to reverse and accumulate the work in a state where the end faces of the work are aligned, and the technical effect of improving the machining efficiency is achieved. .

[0075]

[Brief description of the drawings]

FIG. 1 is an overall view showing an embodiment of the present invention.

FIG. 2 is a front view of FIG.

FIG. 3 is a side view of FIG. 1;

FIG. 4 is an explanatory diagram of a conventional technique.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 sheet material processing machine 2 single sheet picking device 3 unloading device 4 reversing device 5 lifter table 6, 7 auxiliary table

──────────────────────────────────────────────────続 き Continued on front page (51) Int.Cl. ⁶ Identification code FI B21D 43/26 B21D 43/26

Claims (4)

[Claims] 1. An unloading device, a reversing device, and a lifter table are installed near a plate material processing machine. The unloading device adsorbs a work carried in from the plate material processing machine and abuts against a stopper to make an end face. T, and the table is moved to the reversing device side while the work with the end faces aligned is fixed, and the reversing device sucks the work released from the table of the unloading device and lifter table with the end faces aligned. An inverting apparatus wherein the lifter table sequentially accumulates the inverted works W released from the inverting device with their end faces aligned. 2. The collecting apparatus according to claim 1, wherein the unloading device has a free bear table having a draw pad and a stopper and a clamp. 3. The integration device according to claim 1, wherein said reversing device has a reversing arm having a suction pad. 4. The stacking device according to claim 1, wherein said lifter table has a stacking height constant holding means.