JP2853411B2 - Plate piece positioning device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plate material positioning device,
In particular, the present invention relates to a plate material piece positioning device for positioning a plurality of processed plate materials processed by a plate material processing machine in two directions crossing each other.

[0002]

2. Description of the Related Art In the processing of a punch press machine, when a plurality of small plate material pieces are cut out from one large plate and taken out, micro joint processing is performed. In this microjoining process, the large plate and the plate piece are partially connected by a microjoint. A punch press machine that performs such micro joint processing has a sub head for cutting the micro joint portion.

[0003] A plate piece cut by the sub head is carried out by a conveyor or the like arranged on a work table and then positioned in two orthogonal directions. By the positioning in these two directions, the plate pieces are sorted on the carriage in the same arrangement as the arrangement of the plate pieces on the large plate at the time of the microjoint processing, and the plate pieces are mounted. The conventional plate material processing line for performing such sorting includes a punch press machine, a drive roller conveyor arranged on the side of the punch press machine, and two positioning devices arranged on the side of the drive roller conveyor. Have. The two positioning devices include a first table having a pusher and a second table having an unloader. The pusher is positioned in a direction (hereinafter, referred to as Y direction) orthogonal to the unloading direction of the unloaded plate material pieces, and the unloader grips the positioned plate material pieces with a gripper and moves in the unloading direction (hereinafter, X direction). Position.

[0004] The plate pieces positioned by the unloader are placed on a lift truck below the unloader, and are arranged and stacked in the same arrangement as that of the plate-cutting. The plate material pieces stacked on the lifting trolley are carried out in the X direction. In addition, scrap of parts,
It is sent to a scrap gate by a drive roller conveyor, and is fed into a scrap box arranged below the scrap gate.

[0005]

In the above-mentioned conventional configuration,
After the positioning in the Y direction is performed by the pusher, the positioning in the X direction is performed using a gripper by an unloader provided downstream of the pusher. For this reason, a separate table for positioning in each direction and a space therefor are required. Therefore, the device becomes large, and a large space is required for installation.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a plate piece positioning device which can reduce the size of the device and requires a small installation space.

[0007]

A plate material piece positioning apparatus according to the present invention includes a carry-out table, positioning means, and a mounting table. The carry-out table carries out a plurality of processed plate material pieces processed by the plate material processing machine. The positioning means is provided above the carry-out table, and positions the processed plate material piece in the carry-out direction and the direction intersecting with the carry-out direction. The mounting table is provided below the carry-out table, and is capable of moving up and down for mounting the processed plate material piece positioned by the positioning means. In particular, in what is described in claim 2
Is a process taken out of a plate material by the plate material processing machine.
Means for storing the boarding position of the finished board material piece,
The setting means is configured to perform the plurality of processings according to the board removal position.
How to carry out the plate pieces in order to arrange the finished plate pieces on the mounting table
Is controlled in the direction and the direction crossing it.
is there. Further, according to the third aspect, the transport
The delivery table moves in the direction of unloading the plate, and
Is configured by a roller conveyor that can be stopped at
Position the positioning means in the direction that intersects the sheet material unloading direction.
The positioning means engages with each roller of the roller conveyor.
The roller con
The stop position of the bear is determined by the shape of the engagement recess with the plate removal position.
It is determined based on the formation position.

[0008]

In the plate material piece positioning apparatus according to the present invention, when a plurality of processed plate material pieces processed by the plate material processing machine are carried out by the carry-out table, the positioning means provided above the carry-out table is changed to the processed plate material. The piece is positioned in the unloading direction and the direction crossing it. The processed plate piece positioned by the positioning means is mounted on a mounting table which can be moved up and down.

As described above, positioning in two directions crossing each other can be performed by one positioning means on the carry-out table, and the size of the apparatus can be reduced. And the mounting table goes up and down,
The plate pieces can be stacked in the height direction. In particular, claim 2
In the above, the plate material processing machine, the plate material
Memorize the boarding position of the processed board piece taken out from
In the meantime, the positioning means may be arranged in accordance with the board removing position.
The plurality of processed plate pieces are taken out of the plate piece and the
Position in the crossing direction. As a result,
Plate pieces can be arranged on the surface. Further, in claim 3
In the above description, the plate removing position and the engaging recess are provided.
Roller conveyor at a position determined based on the
Positioning of the plate pieces in the unloading direction to stop
At the same time, check the engagement recess and each roller of the roller conveyor.
By actually engaging, positioning in the direction crossing the unloading direction is also possible
Make sure.

[0010]

FIG. 1 shows a plate processing line to which an embodiment of the present invention is applied. In FIG. 1, a punch press 1 is disposed at one end of the plate material processing line. The punch press 1 is provided with a processing head 2 for punching a plate material and the like, and a sub-head 3 for cutting a micro joint portion of a plate material piece nibbled (cut) by the processing head 2. In addition, punch press machine 1
Is provided with a work table 4 on which the plate material W is placed, and a carriage 5 arranged at the front end thereof.

The work table 4 includes a fixed table 5 and
It is composed of movable tables 6 and 7 arranged on both sides thereof and movable in the Y-axis direction. On the moving table 6,
A plurality of rollers 8 each extending in the Y-axis direction and rotatable
Are provided at predetermined intervals. The upper part of each roller 8 projects above the table surface of the moving table 6. These rollers 8 are for transporting the plate material pieces taken out of the plate material W by the nibbling process to the roller conveyor 20 side of the punch press 1. A plurality of freely rotatable transfer balls 9 are arranged between the rollers 8. Each transfer ball 9 is attached to each roller 8
, And a transfer position that protrudes and retracts below each roller 8. That is, at the time of processing the work W, each transfer ball 9 moves to the processing position above the roller 8, so that the movement of the work W on the work table 4 can be performed smoothly. A plurality of transfer balls 10 similar to the transfer balls 9 are arranged on the upper part of the moving table 7. The carriage 10 is connected to each of the moving tables 6 and 7. The carriage 5 is provided with a work holder 11 for holding the plate material W. The work holder 11 is provided movably in the X-axis direction in the carriage 5.

Although not shown, on the right side of the punch press 1 in FIG.
Is provided. This loader has a suction pad for sucking and holding the plate material W at a lower portion, and can run in the left-right direction in FIG. A roller conveyor 20 is arranged on the side of the punch press 1. The roller conveyor 20 includes conveyors 21 and 22 arranged side by side in the Y-axis direction. The conveyor 21 includes a plurality of rotatable rollers 22 and transfer balls 23 disposed between the rollers. The rollers 22 and the transfer balls 23 have the same configuration as the rollers 8 and the transfer balls 9 provided on the moving table 6 of the punch press 1. Further, a plurality of transfer balls 24 are arranged on the conveyor 22.

At the other end of the plate material processing line, a stock device 30 is disposed. The stock device 30 mainly includes a moving roller device 31 and a positioning device 32 disposed above the moving roller device 31. Moving roller device 3
1 includes a frame 33 and a frame 3 as shown in FIG.
3 and a chain 34 arranged in the X-axis direction and the vertical direction. The chain 34 is connected to the frame 33
Sprockets 3 rotatably supported on each
It is wound around 5. A plurality of support members 36 are fixed to a part of the chain 34 at predetermined intervals. Each support member 36 has a roller 3 extending in the Y-axis direction.
7 is provided rotatably.

Below the roller 37, as shown in FIG. 3, a roller rotation driving device 40 for rotating the roller 37 is disposed. This roller rotation driving device 40
Comprises a plurality of rollers 41 arranged at predetermined intervals,
And a belt 42 wound around each roller 41. The belt 42 is wound around a drive roller (not shown), and can run in the left-right direction in FIG. 3 by the rotation of the drive roller. Each roller 41 is rotatably supported by a frame 43. Below the frame 43, a cylinder 44 for driving the frame 43 up and down is provided. With this configuration, the entire frame 43, the roller 41, and the belt 42 are moved up and down by driving the cylinder 44.
7. The retracted position (lower position) retracted below the position 7 can be taken.

A servomotor 38 for rotating the sprocket 35 is mounted on a part of the sprocket 35 (FIG. 2). The drive of the servo motor 38 allows the chain 34 to travel and each roller 37 to move in the left-right direction in FIG. Then, by the movement of the roller 37,
An opening 39 (see FIG. 1) can be formed in the upper part of the moving roller device 31. Also, the servo motor 3
An encoder (not shown) is attached to 8, and the rotation amount of the servomotor 38 can be detected by the encoder.

The positioning device 32 includes an unloader 50 for positioning the plate material piece on the roller 37 in the X-axis direction;
And a pusher 51 for positioning the piece of plate material on the roller 37 in the Y-axis direction. The unloader 50 has an apparatus main body 52 and a plurality of grippers 54. The gripper 54 has, at its tip, a grip portion 55 that can grip one end of a plate material piece, and is provided rotatably via a pin 53 at a lower portion of the apparatus main body 52. With this configuration, the gripper 54
Can take a retracted posture (solid line in FIG. 2) turned upward and a gripping posture (dashed line in FIG. 2). On the other hand, a gate-shaped frame 55 is provided above the moving roller device 31. A guide rail 56 extending in the X-axis direction is provided on the upper portion of the frame 55. A rack 57 extending in the X-axis direction is fixed to an upper portion of the frame 55. A support frame 58 extending in the up-down direction and straddling the upper portion of the frame 55 is mounted on the apparatus main body 52 of the unloader 50. A roller 59 is rotatably supported above the frame 58. The roller 59 is mounted on the rail 56. Thus, the unloader 50 is movable in the rail 56 direction. Also,
A pinion 60 that meshes with the rack 57 is provided on the upper part of the apparatus main body 52. The pinion 60 is connected to a drive motor (not shown), and by driving the drive motor, the unloader 50 can travel in the X-axis direction.

As shown in FIG. 3, the pusher 51 has an engagement recess 61 at the lower part thereof which can be engaged with the roller 37. The pusher 5 is located above the pusher 51.
Cylinders 62 and 63 (FIG. 2) for raising and lowering the cylinder 1
Are arranged on the left and right. The lower parts of the piston rods 62a, 63a of the cylinders 62, 63 are connected to the upper part of the pusher 51. The cylinders 62 and 63 are fixed to support members 64 and 65 disposed above the cylinders 62 and 63, respectively. On the other hand, rails 66 and 67 extending in the Y-axis direction are disposed on the left and right at the upper part of the frame 55.
Each support member 64, 65 is slidably engaged with these rails 66, 67. Although not shown,
The support members 64 and 65 are slidable on the rails 66 and 67 by a mechanism such as a rack and pinion.

An opening 3 is provided below the moving roller device 31.
9 lifter with product table 70 (FIG. 1) plate material piece W ₁ which is dropped downwardly through the is placed is arranged.
The product table 70 with a lifter has a table 71 that can be moved up and down by a lifting device such as a cylinder. Also,
Rails 72 and 73 extending in the Y-axis direction are provided below the moving roller device 31, and the product table with lifter 70 can run on these rails 72 and 73.

Also, as shown in FIG.
A scrap box 80 is provided in front of the scrap box 80. The scrap box 80 is for accommodating scrap materials taken out from the plate material W. The plate material processing line described above has a control unit 90 as shown in FIG. The control unit 90 includes a microcomputer including a CPU, a RAM, a ROM, and the like. Control unit 90
Is connected to a keyboard 91, a tape reader 92, and other input units. The control unit 90 is connected to the punch press 1, the roller conveyor 20, the stock device 30, and other output units.

The stock apparatus 30 has a control unit 100 as shown in FIG. The control unit 100
It includes a microcomputer including a U101, a RAM 102, a ROM 103, and the like. In addition, a keyboard 105, an I / O port 104 of the control unit 100,
A tape reader 106, various sensors 107, an encoder 108 attached to the servo motor 38 of the moving roller device 31, and other input units are connected. Also, I / O
The port 104 includes a traveling section 109 of the unloader 50, a driving section 110 of the gripper 54, a servomotor 38 for moving the roller 37, a rotation driving device 40 for the roller 37, cylinders 62 and 63 for raising and lowering the pusher 51, and a pusher 51. The moving unit 111 for moving in the axial direction and another output unit are connected.

The above-mentioned plate material processing line is controlled by the control units 90 and 100, and operates as described below. 7 to 9 are control flowcharts. When the program starts, step S in FIG.
In step 1, initial settings such as setting the carriage 5 of the punch press 1, the unloader 50 and the pusher 51 of the stock apparatus 30, and the like to initial positions are performed. Next, in step S2, a work start command is waited. Keyboard 91
If a work start command is input from step S3, the process proceeds to step S3. In step S3, the NC program is read from the tape reader 92. Next, in step S4, a command step of the NC program is read.

In step S5, it is determined whether or not the read command step is a plate material carry-in command. If not, the process proceeds to step S6, and it is determined whether the command step is a machining command. Similarly, in step S7, it is determined whether the read command step is a carry-out command. In step S8, it is determined whether the command step is a command for performing another process. Then, in a step S9, it is determined whether or not all the instruction steps have been processed. If the command step still remains, the process returns to step S4, and the processing of steps S4 to S8 is repeated.

If it is determined in step S5 that a plate material carry-in command has been issued, the process proceeds to step S10. In step S10, the plate material W for processing is carried into the work table 4 of the punch press 1 by driving a loader (not shown). If it is determined in step S6 that the command is a machining command, the process proceeds to step S11,
The machining subroutine shown in FIG. 8 is executed.

In FIG. 8, in step S12, it is determined whether or not nibbling is performed. If it is determined that the nibbling is performed, the process proceeds to step S13. Step S
At 13, the nibbling is performed by the processing head 2 according to the NC program read in step S3. At the end of the nibbling process, the sub-head 3 is driven to cut the micro joint portion of the plate material piece to be taken out of the plate material W. Next, step S1
In step 4, the position of the plate material piece taken out of the plate material W (plate cutting position) is stored. If it is determined in step S12 that the process is not nibbling, the process proceeds to step S15. In step S15, normal machining according to the NC program is performed. After the processing in steps S14 and S15, the program returns to the main routine of FIG.

If it is determined in step S7 that the command is a carry-out command, the flow shifts to step S16 to execute a carry-out subroutine shown in FIG. Step S1 in FIG.
In step 7, the forming position of the opening 39 (FIG. 1), that is, the moving position of the roller 37 is calculated in accordance with the take-out position of the plate material piece stored in step S14. In addition, at the time of this calculation, the calculation is performed in consideration of the data of the formation position of the engagement concave portion 61 (FIG. 3) below the pusher 51. next,
In step S18, the roller 37 is moved to a predetermined position by driving the servo motor 38 based on the calculation result in step S17. When the servo motor 38 is driven,
The drive control of the servomotor 38 is performed while the rotation amount of the servomotor 38 is detected by the encoder 108 attached to the servomotor 38. In addition, this roller 3
When the cylinder 7 moves, the pushers 51 are retracted upward by driving the cylinders 62 and 63.

Next, in step S19, the unloader 5
0 is moved to the X-direction positioning position of the plate piece at the opening edge of the opening 39 (see FIG. 1). Next, step S
At 20, the rotation of the roller 8 on the moving table 6 of the punch press 1, the roller 22 of the roller conveyor 20, and the roller 37 of the moving roller device 31 is started. At the time of rotation of the roller 37, as shown in FIG.
To rotate. In step S21, it is determined whether or not the plate material piece extracted from the plate material W has reached the X-direction positioning position. In this case, the moving table 6, the conveyor 21,
The determination is made based on whether or not the end portion of the plate material piece conveyed by the roller 37 abuts on the inside of the grip portion 55 of the unloader gripper 54. If the plate material is positioned in the X direction,
Move to step S22. In step S22, the conveyor 21 and the servomotor 38 are stopped. Next, in step S23, the gripper 54 is moved to the retracted posture (solid line in FIG. 2).

Next, in step S24, the cylinder 6
The pushers 51 are lowered by the driving of the switches 2 and 63.
At this time, since each roller 37 below the pusher 51 is arranged at a position where it can engage with the engagement recess 61 below the pusher 51, the pusher 51 does not interfere with the roller 37 as shown in FIG. Each roller 37 fits into the engagement recess 61 (see FIG. 3). Next, step S25
Then, the movement of the pusher 51 in the Y direction is started by driving the pusher moving unit 111. As a result, the pusher 51 comes into contact with one end of the plate on the roller 37, and the plate moves in the Y direction. Next, in step S26, it is determined whether or not the plate piece has reached a predetermined Y-direction positioning position. The detection of the Y-direction position of the plate material piece is performed by a sensor provided in the pusher moving unit 111. When the plate member comes to the predetermined Y-direction position, the process proceeds to step S27. In step S27, driving of the pusher moving unit 111 is stopped, and the pusher 51 is stopped. Next, in step S28, the pusher 51 is retracted by driving the pusher moving unit 111 in the opposite direction (see FIG. 1).

Next, in step S29, the gripper 54 is turned by the driving of the gripper driving unit 110 to the gripping posture (the dashed line in FIG. 2). Thereby, the gripper 5
The end of the plate material piece is inserted into the holding portion 55 of No. 4. next,
In step S30, the end of the plate piece is gripped by the gripper 55. Next, in step S31, the servo motor 3
8 drives the chain 34 to drive the rollers 37
Is moved rightward in FIG. As a result, the opening 39 of the moving roller device 31 gradually expands, and one end of the plate material piece gripped by the unloader gripper 55 is dropped from the opening 39 onto the lifter-equipped product table 70 below.
Next, in step S32, the gripper 55 is opened. As a result, the plate material piece W ₁ (FIG. 2) is placed at a predetermined position on the table 71 of the product base 70 with the lifter. In step S33, it is determined whether or not the plate piece has been placed on the product stand with lifter 70, that is, whether or not the unloading of the plate piece has been completed. When the unloading of the plate material is completed, the process returns to the main routine of FIG.

If the instruction step read in step S4 is a step for instructing other processing, the process proceeds from step S8 to step S34. In step S34, a process according to the command is performed.
For example, when the scraps of the plate material W are to be discharged into the scrap box 80, the unloader gripper 54 is set to the retracted position, and the pusher 51 is moved to the far side (the upper side in FIG. 1) of the moving roller device 31. From this state, the scrap material is moved onto the roller 37. Then, the pusher 51 is again moved to the near side (the lower side in FIG. 1). Thereby, the roller 37
The upper scrap is moved to the near side in FIG. 1 by the pusher 51 and is discharged into the scrap box 80. When reading of all the steps is completed, the determination in step S9 becomes Yes, and the operation of the plate material processing line ends.

[0030]

According to the plate material piece positioning apparatus of the present invention, since the positioning in the transport direction and the positioning in the direction crossing the transport direction can be performed on the same transport table, the entire apparatus can be reduced in size and installed in a narrow space. And the mounting table
Ascends and descends, so stack plate pieces at the same height.
Both are possible. In the second aspect,
Is a process taken out of a plate material by the plate material processing machine.
The board removal position of the finished board material is stored and
The means may include the plurality of processed plates according to the plate removing position.
Positioning of the pieces in the direction in which they are carried out and in the direction that intersects them
Plate on the flat surface of the mounting table
Pieces can be lined up. Further, according to claim 3
In the above, the plate removing position and the formation position of the engagement concave portion
And stop the roller conveyor at the position determined based on
Therefore, it is possible to position the plate pieces in the unloading direction.
Engage the concave part with each roller of the roller conveyor securely
Position in the direction intersecting the unloading direction.
I can.

[Brief description of the drawings]

FIG. 1 is a schematic plan view of a plate processing line to which an embodiment of the present invention is applied.

FIG. 2 is a partial front view of the stock apparatus.

FIG. 3 is a schematic configuration diagram of a roller rotation driving device.

FIG. 4 is a diagram for explaining a conventional problem.

FIG. 5 is a schematic block diagram of a control unit of the plate material processing line.

FIG. 6 is a schematic block diagram of a control unit of the stock apparatus.

FIG. 7 is a control flowchart thereof.

FIG. 8 is a control flowchart thereof.

FIG. 9 is a control flowchart thereof.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Punch press machine 31 Moving roller device 32 Positioning device 50 Unloader 51 Pusher 70 Product stand with lifter

Claims (3)

(57) [Claims] 1. An unloading table for unloading a plurality of processed plate pieces processed by a plate processing machine, and provided above the unloading table, wherein the processed plate pieces are unloaded in an unloading direction and a direction intersecting with the unloading table. A plate material piece positioning device comprising: a positioning means for positioning; and a mountable table provided below the unloading table and capable of mounting and lowering the processed plate material piece positioned by the positioning means. (2) Removed from the plate by the plate processing machine
Means for storing the boarding position of the processed plate
In addition, the positioning means may be arranged in accordance with the plate removing position.
To arrange multiple pieces of processed plate on the mounting table,
Positioning control is performed in the direction in which the
2. The plate material piece positioning device according to claim 1, wherein (3) The unloading table is moved in the unloading direction of the sheet material.
Roller conveyor that can move and stop at any position in the same direction
And the direction in which the positioning means moves the sheet material out.
The means for positioning in the direction intersecting with the roller conveyor
With a plurality of engagement recesses that can engage with each roller of
The stop position of the roller conveyor is the
Determined based on the position and the formation position of the engagement recess.
Item 3. A plate material piece positioning device according to Item 2.