JP2001205343A - Work carrying-in apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the interference between a work and a front table and to improve a product precision by carrying in a work without forming a groove in the front table in a bending machine. SOLUTION: A bottom die 3 constituting a bending machine is arranged with a front table 20 at its front and a loading table 21 to its side respectively. A gripper 9 which is movable between the front table 20 and the loading table 21 and holds a work W, is arranged in an inner side face 2 of the bottom die 3, the work W on the loading table 21 is carried into a front table 20 side through the gripper 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work loading device, and more particularly to a work loading device used for a panel vendor.

[0002]

2. Description of the Related Art A front table 91 is installed in front of a conventional bending machine, for example, a panel bender 90 (FIG. 6), and a loading table 92 is installed on the side.

A groove 94 is formed in the front table 91 in the left-right direction (X-axis direction), and a gripper 93 is movably mounted along each groove 94.

With this configuration, the loading table 9
The workpiece W is carried into the front table 94 by holding the workpiece W on the gripper 2 with the gripper 93 and moving the gripper 93 along the groove 94.

In this state, the work W is brought into contact with a pin gauge or the like, the origin is set, and then the work W is gripped by the manipulator 95 to be rotated and transported, and is subjected to predetermined bending by the panel bender 90. .

[0006]

[Problems to be solved by the invention]

However, in the prior art (FIG. 6), a space is required for the gripper 93 to move in the left-right direction. For this reason, as described above, the groove 94 for dividing the front table 91 is formed. I have to do it.

The gripper 93 (FIG. 9)
After the work W is set at the origin, the work W returns to the original position on the loading table 92 side.

For this reason, the portion of the groove 94 (FIG. 7)
When the work W after completion of the origin setting is clamped by the manipulator 95 for rotation / transport positioning, the work W hangs down the groove 94 and interferes.

As a result, there is an adverse effect that the accuracy of the product is reduced due to damage to the product.

An object of the present invention is to make it possible to carry in a work without forming a groove in a front table in a bending machine, thereby preventing interference between the work and the front table and improving product accuracy. It is in.

[0012]

[Means for Solving the Problems]

According to the present invention, as shown in FIGS. 1 to 5, (A) a workpiece W clamped by a top die 2 and a bottom die 3 is bent by a bend beam 4. (B) a front table 2 in front of a bottom die 3 constituting the bending machine;
The gripper 9 is disposed on the inner surface 25 of the bottom die 3 and is movable between the front table 20 and the loading table 21 and grips the work W.
A technical means called a work carry-in device characterized in that the work W on the loading table 21 is carried into the front table 20 side via the.

Therefore, according to the structure of the present invention, the groove is formed in the front table 20 by movably providing the gripper 9 for gripping the work W on the inner surface 25 of the bottom die 3 (FIG. 2). Since the work W can be carried in without any trouble, the interference between the work W and the front table 20 is prevented when the manipulator 5 rotates and transports the work W, so that the accuracy of the product can be improved. .

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, the present invention will be described by way of embodiments with reference to the accompanying drawings. FIG. 1 is an overall view showing an embodiment of the present invention.

In FIG. 1, a bending machine 1 is, for example, a panel bender.

The panel bender 1 has a top die 2 (FIG. 2) that can move up and down, sandwiches a work W in cooperation with a bottom die 3, and has a forward bending die 4A and a reverse bending die 4B. By turning the bend beam 4 up and down,
This is an ironing bending machine that bends the work W (step 106 in FIG. 5).

A front table 20 is arranged in front of the bottom die 3 constituting the panel bender 1 (FIG. 1), and a loading table 21 is arranged laterally.

The workpiece W to be processed is conveyed to the loading table 21 one by one via a single-sheet picking device, for example, and a pre-origin is set.

The work W is carried into the front table 20 from the loading table 21 via a gripper 9 to be described later. After the origin is set, the work W on the front table 20 is rotated / transported and positioned by the manipulator 5. (Step 105 in FIG. 5).

A gripper 9 that can move between the front table 20 and the loading table 21 and grips the work W is provided on the inner side surface 25 (FIG. 2) of the bottom die 3.

The details of the gripper 9 are shown in FIGS. 3 and 4. The gripper 9 has a gripper 11 for gripping a workpiece W.
And the moving section 10 to which the grip section 11 is attached.

The moving section 10 (FIG. 3) has an L-shaped side surface and is formed so as to be long in the X-axis direction, so that it can easily move along the bottom die 3 and the loading table 21. Has become.

The lower part of the moving part 10 is attached to the LM guide 23 laid on the inner surface 25 of the bottom die 3 by the LM nut 2.
4 and is screwed to the ball screw 22.

The LM guide 23 protrudes straight from the bottom die 3 to a position below the adjacent loading table 21, and the protruding portion is supported by a column 26.

The ball screw 22 extends in parallel with the LM guide 23 and is connected to an X-axis motor Mx attached to the right end of the loading table 21 (FIG. 1).

Therefore, with this configuration, the X-axis motor Mx
Is driven, the gripper 9 is gripped by the gripper 9 described below, and the gripper 9 is moved to the loading table 21.
Can be moved to the front table 20 side (step 102 in FIG. 5).

When the X-axis motor Mx is driven, the empty gripper 9 having released the work W from the gripper 11 can be moved to the loading table 21 and returned to the original position (step in FIG. 5). 104).

The gripper 11 is, for example, a swing clamper 1.
2 (FIG. 4A) and a base 13.

The swing clamper 12 is supported by a base 13 via a swing shaft 15, and a piston rod 14 A of a cylinder 14 built in the base 13 is connected to a rear portion of the swing clamper 12.

With this configuration, when the cylinder 14 is operated, the turning clamper 12 turns in a vertical plane, and
3 in cooperation with the workpiece W (step 10 in FIG. 5).
1) or can be released (step 10 in FIG. 5)
3).

Further, the gripping portion 11 is constituted by, for example, an upper and lower clamper 16 and a plate 17 (FIG. 4B).

The upper and lower clampers 16 are arranged inside the plate 17, and the piston rod 18 A of the cylinder 18 is connected to the upper and lower clampers 16 through the opening 19.

With this configuration, when the cylinder 18 is operated, the up-down clamper 16 moves up and down, and can cooperate with the plate 17 to grip the work W (step 101 in FIG. 5) or release it (FIG. 5). 5 Step 103).

As described above, according to the present invention, the grip 11
The work W can be moved from the loading table 21 without forming a groove in the front table as in the related art (FIG. 6) by providing the gripper 9 composed of the gripper 9 and the moving unit 10 on the inner surface 25 of the bottom die 3. It can be carried into the front table 20 side.

Therefore, even when the work W is rotated and transported and positioned by the manipulator 5, interference between the work W and the front table 20 is prevented, and the accuracy of the product can be improved.

On the other hand, in front of the panel bender 1 (FIG. 1), a manipulator 5 is installed via the front table 20.

The manipulator 5 has, for example, a C-shaped frame 6. An upper turret 7 is provided at an upper end of the C-shaped frame 6 (FIG. 2), and a lower turret 8 is provided at a lower end via a motor M. Are attached.

As is well known, the upper turret 7 is mounted on a mounting member 30 and, for example, a cylinder 31
By moving the workpiece W in the vertical direction, the workpiece W is clamped in cooperation with the lower turret 7, and the motor M is operated to rotate the workpiece W, thereby selecting a side to be bent.

The entire C-shaped frame 6 of the manipulator 5 is slidably connected to a guide rail 33 laid on a pedestal 32 and a ball screw 35 via a nut 34.
, And the ball screw 35 is connected to the Y-axis motor My.

With this configuration, when the Y-axis motor My is driven to rotate the ball screw 35, the C-type frame 6 of the manipulator 5 moves on the guide rail 33 in the front-rear direction (Y
In the axial direction).

Accordingly, when the motor M and the Y-axis motor My are operated, the work W transferred from the loading table 21 to the front table 20 via the gripper 9 is moved.
Is rotated and conveyed and positioned by the manipulator 5 as described above (Step 105 in FIG. 5).

Hereinafter, the operation of the present invention having the above configuration will be described.
A description will be given based on FIG.

(1) Operation from gripping the work W by the gripper 9 to moving to the front table 20 side.

In this case, it is assumed that the gripper 9 is positioned in advance on the loading table 21 side (FIG. 1), and that the work W on the loading table 21 has been set to a pre-origin.

In this state, first, in step 101 in FIG.
, The workpiece W is gripped by the gripper 9 and
In 02, the gripper 9 is moved to the front table 20 while holding the workpiece W.

For example, the gripper 11 constituting the gripper 9
(FIG. 4A) Cylinder 14 built in base 13
Is operated to turn the swing clamper 12 downward, the swing clamper 12 grips the workpiece W in cooperation with the base 13.

Next, when the X-axis motor Mx is driven (FIG. 1), the ball screw 22 rotates, and the moving part 10 of the gripper 9 with which the ball screw 22 is screwed moves to the LM guide 23.
Is moved to the front table 20 side
Stop at a predetermined position.

(2) The operation from the release of the work W by the gripper 9 to the movement to the loading table 21 and return to the original position.

Next, after the gripper 9 releases the work W in step 103 of FIG. 5 and the origin is set, in step 104, the gripper 9 is moved to the loading table 21 and returned to the original position. .

For example, the cylinder 14 (FIG. 4)
(A)) When the swing clamper 12 is operated to swing upward, the work W gripped in cooperation with the base 13 is released.

Then, the workpiece W released from the gripper 9 is set to the origin by being abutted against a pin gauge (not shown).

Thereafter, this time, the X-axis motor Mx is turned on (FIG. 1).
When driven, the ball screw 22 rotates in the reverse direction, and the moving unit 10 moves together with the empty gripping unit 11 that has released the work W.
3 and moves from the front table 20 to the loading table 21 side, and is stopped at the original predetermined position.

(3) Rotation / transport positioning operation of the work W.

Next, in step 105 of FIG. 5, the work W is clamped by the manipulator 5 to perform rotation / transport positioning.

Front table 2 with the origin set
Work W on the upper turret 7 of the manipulator 5
(Fig. 2) The lower turret 8 is used to grasp and change the side to be processed by operating the motor M and rotating.

By operating the Y-axis motor My (FIG. 2) to convey the workpiece W in the Y-axis direction, the bottom die 3 and the immediately above the bottom die 3 after the gripper 9 retreats to the loading table 21 side. The work W is inserted between the top die 2 and positioned at a processing position.

In this case, according to the present invention, no groove is formed in the front table 20. Therefore, even if the work W is rotated and conveyed and positioned on the front table 20, it differs from the conventional one (FIG. 7). The work W does not interfere with the front table 20 and is not damaged.

(4) Bending operation.

The work W thus rotated and conveyed and positioned by the manipulator 5 (FIG. 2) is clamped by the top die 2 and the bottom die 3 of the panel bender 1 and subjected to a predetermined bending process by the bend beam 4. (Step 106 in FIG. 5).

[0062]

As described above, according to the present invention, since the gripper for gripping the work is provided movably on the inner surface of the bottom die, the work on the loading table can be formed without forming a groove in the front table. Can be carried into the front table side, so that in the case of rotation and conveyance positioning of the work by the manipulator, interference between the work and the front table is prevented, and the effect of improving the product accuracy is achieved. .

[0063]

[Brief description of the drawings]

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

FIG. 2 is a side view of FIG.

FIG. 3 is a view showing an embodiment of a moving unit 10 constituting the gripper 9 of the present invention.

FIG. 4 is a view showing an embodiment of a gripper 11 constituting the gripper 9 of the present invention.

FIG. 5 is a flowchart for explaining the operation of the present invention.

FIG. 6 is a diagram illustrating a configuration of a conventional technique.

FIG. 7 is a diagram for explaining a problem of the related art.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bending machine 2 Top die 3 Bottom die 4 Bend beam 5 Manipulator 6 C type frame 7 Upper turret 8 Lower turret 9 Gripper 10 Moving part 11 Gripping part 12 Revolving clamper 13 Base 14, 18 Cylinder 15 Revolving shaft 16 Upper and lower clamper 17 Plate Reference Signs List 19 opening 20 front table 21 loading table 22 ball screw 23 LM guide 24 LM nut 25 inner surface of bottom die 3 26 support of LM guide 23 W Work

Claims (4)

[Claims] 1. A bending machine for bending a work clamped by a top die and a bottom die with a bend beam, wherein a loading table is disposed laterally on a front table in front of a bottom die constituting the bending machine. A work, wherein a gripper movable between a front table and a loading table and gripping a work is provided on an inner surface of the bottom die, and the work on the loading table is carried into the front table via the gripper. Loading device. 2. The gripper has a gripper for gripping a workpiece and a moving part to which the gripper is attached, and the moving part is slidably coupled to the LM guide and rotated by a motor. The work carrying device according to claim 1, wherein the work carrying device is screwed to the screw. 3. The gripper according to claim 2, wherein the gripper has a swing clamper that can swing in a vertical plane, and a base that supports the swing clamper, and grips the workpiece by cooperation of the swing clamper and the base. Work loading device. 4. The work according to claim 2, wherein the holding portion has an upper and lower clamper movable in a vertical direction, and a plate for supporting the upper and lower clampers, and holds the work in cooperation with the upper and lower clampers. Loading device.