JPH11342425A - Work positioning device for panel bender - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make positioning of a work possible, on which an irregularity part is formed, and improve work processing efficiency by mounting a bottom turret on a panel bender in a way to rise and fall freely. SOLUTION: This panel bender has an upper turret 1, a bottom turret 2 and an elevation mechanism 35. The work W is mounted by means of rising and falling of the bottom turret 2 activated by the elevation mechanism 35 in proportion to a level difference of the irregularity part of the work W, and is positioned at a bending point M after being clamped and rotated with the cooperation of the upper turret 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work positioning device for a panel bender, and more particularly, to a work positioning device for a panel bender provided with a lifting mechanism for a lower turret in a manipulator installed in front of the panel bender.

[0002]

2. Description of the Related Art Conventionally, when mass-producing products by automatically bending a workpiece, a panel bender called an ironing bending machine has been used.

This panel bender has, for example, the configuration shown in FIG. 6, and bends the work W by sandwiching the work W between a top die 51 and a bottom die 52 and turning a bend beam 53 up and down.

The panel bender 50 has a manipulator 59 as a work positioning device in front of the panel bender.

[0005] The manipulator 59 includes a frame 54
The frame 54 has an upper turret 55 that can move up and down and a lower turret 5 that can rotate, as shown in the drawing.
6 is attached.

With this configuration, the upper turret 55 is lowered, the work W is clamped by the upper turret 55 and the lower turret 56, and the side to be bent is selected by rotating the lower turret 56.

Then, the frame 54 is moved forward and backward on the base 58, and the work W is positioned at the bending position M in accordance with the length of the flange.

[0008]

In the above-described conventional apparatus, the lower turret 56 does not move in the vertical direction (Z-axis direction), and the lower turret 56 moves the path with respect to the bottom surface of the work W. It matches the line PL.

Therefore, if the portion of the work W clamped by the upper turret 55 and the lower turret 56 is flat (FIG. 6), there is no problem in processing the work W.

However, when the work W is used for a condominium door panel or the like, an uneven portion such as a squeezed portion C1 shown in FIG.
Are often formed.

In this case, a space K as shown is formed between the narrowed portion C1 of the work W loaded on the front table 57 and the lower turret 56, and the lower turret 56 places the work W thereon. Can not do.

Therefore, when the upper turret 55 is lowered to clamp the work W, the narrowed portion C1 is crushed (FIG. 7B), and the work W loses its value as a product. The bending process must be stopped, and the processing efficiency of the work W is obviously reduced.

An object of the present invention is to provide a panel vendor
An object of the present invention is to attach a lower turret so as to be able to move up and down so that a work having an uneven portion can be positioned, thereby improving the processing efficiency of the work.

[0014]

In order to solve the above-mentioned problems, the present invention comprises an upper turret 1, a lower turret 2, and a lifting mechanism 35 as shown in FIGS. As a result, the lower turret 2 is raised and lowered in accordance with the steps H1 and H2 of the uneven portions C1 and C2 of the work W, thereby placing the work W thereon, and clamping the work W in cooperation with the upper turret 1. A technical measure of rearward rotation and positioning at the bending position M is taken.

Therefore, according to the structure of the present invention, by adding the lifting mechanism 35, the lower turret 2
Can be moved up and down according to the steps H1 and H2 of the uneven portions C1 and C2, so that the lower turret 2 can receive the work W (FIG. 4), and the lower turret 2 Positioning becomes possible, and the processing efficiency of the workpiece can be improved.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in accordance with embodiments with reference to the accompanying drawings. In FIG. 1, a panel bender 30 has a top die 31 which can move up and down, sandwiches a work W in cooperation with a bottom die 52, and has a bend beam 33 having a forward bending die 33A and a reverse bending die 33B.
Is an ironing and bending machine that bends the work W by turning upward and downward.

In front of the panel bender 30, as shown, a manipulator 3 serving as a work positioning device is provided.
4 are installed.

At the side of the manipulator 34 (FIG. 2)
(B)) The loading device 40 is installed, and the work W accumulated in the loading device 40 is gripped by the gripper 43, carried into the front table 41 of the manipulator 34, and hits the pin gauge 42. The work W is set at the origin (step 101 in FIG. 5).

Thereafter, the workpiece W is clamped by the upper turret 1, the lower turret 2, and the elevating mechanism 35 according to the present invention (step 105 in FIG. 5), and the side to be bent is selected by rotating the lower turret 2. (Step 106 in FIG. 5), and is positioned at the bending position M (FIG. 2A) (Step 107 in FIG. 5).

The manipulator 34 has, for example, a U-shaped frame 39. An upper turret 1 is mounted on an upper portion 39A of the frame 39, and a lower turret 2 is mounted on a lower portion 39B.

As is well known, the upper turret 1 is attached to the unit 11 and moves up and down (in the Z-axis direction) by, for example, a cylinder so as to clamp the work W in cooperation with the lower turret 2. It has become.

The lower turret 2 is disposed directly below the upper turret 1, is rotatably mounted by a motor M, and selects a side to be bent by rotating the work W clamped together with the upper turret 1. .

The lower turret 2 has an elevating mechanism 35, which comprises, for example, a vertical slide 4, a wedge-shaped tapered block 5, and a cylinder 9.

That is, as shown in FIG.
Is fixed to a horizontally arranged mounting plate 3, and a sliding body 4 is mounted on the mounting plate 3 in a vertical direction.

The vertical sliding body 4 is slidably connected to the guide rail 12 provided on the lower portion 39B of the frame 39 and abuts on the slope 5A of the wedge-shaped tapered block 5.

The wedge-shaped tapered block 5 is slidably connected to a guide rail 6 provided on the bottom 10 of the frame 39 and is connected to a cylinder 9 via a piston rod 8.

The cylinder 9 is fixed to the bracket 7,
For example, it is driven by hydraulic pressure, pneumatic pressure, or the like.

With this configuration, when the cylinder 9 is driven, the wedge-shaped tapered block 5 moves in the front-rear direction (Y-axis direction) via the piston rod 8, and comes into contact with the slope 5A of the wedge-shaped tapered block 5 accordingly. Vertical slide 4
Moves up and down along the guide rail 12.

Accordingly, as will be described later (FIG. 4), the lower turret 2 is provided with a step H1 between the uneven portions C1 and C2 of the work W,
The work W can be placed by moving up and down according to H2, and the work W can be clamped in cooperation with the upper turret 1.

FIG. 3 shows another embodiment of the lifting mechanism 35, which comprises a ball screw 13 rotated by a Z-axis motor Mz.

That is, the lower turret 2 includes the mounting plates 3A and 3A.
B, wherein the mounting plates 3A and 3B are slidably coupled to the guide rail 15 provided on the lower portion 39B of the frame 39 and are rotatably mounted on the lower portion 39B of the frame 39. 13 is screwed.

The ball screw 13 is connected to a Z-axis motor Mz.
And the Z-axis motor Mz is connected to the lower part 3 of the frame 39.
On 9B, it is fixed on the horizontal plate 14.

With this configuration, when the Z-axis motor Mz is driven, the ball screw 13 rotates, and the mounting plate 3
The lower turret 2 screwed to the ball screw 13 via A and 3B moves up and down along the guide rail 15.

Accordingly, the lower turret 2 is similarly moved by the lifting / lowering mechanism 35 (FIG. 4).
The work W can be placed by moving up and down according to the steps H1 and H2 of the steps C1 and C2, and the work W can be clamped in cooperation with the upper turret 1.

On the other hand, the frame 39 of the manipulator 34
As a whole, the bottom 10 is slidably connected to a guide rail 45 provided on a base 38 (FIG. 1) and screwed to a ball screw 37, which is connected to a Y-axis motor My. I have.

A space 46 is formed between the front tables 41 on both sides of the manipulator 34, and the frame 39 of the manipulator 34 is inserted into the space 46.

With this configuration, when the Y-axis motor My is driven to rotate the ball screw 37, the manipulator 34
Frame 39 is provided with a gap 4 between both front tables 41.
Along 6, it moves forward and backward on the guide rail 45 in the front-rear direction (Y-axis direction).

Accordingly, the workpiece W clamped by the upper turret 1, the lower turret 2, and the elevating mechanism 35 and whose side to be bent is selected is bent at a bending position M according to the flange length (FIG. 2A). Can be positioned.

Hereinafter, the operation of the present invention having the above configuration will be described with reference to FIG.

(1) The drawing portion C1 (FIG. 4)
Operation when (A)) is formed. First, in step 101, the work W is loaded and the origin is set (FIG. 2B). In step 102, the frame 39 of the manipulator 34 is moved.
In step 103, the lower turret 2 is moved to the narrowed portion C1.
(The height is raised and lowered according to the step H1 in FIG. 4A.)

That is, when the origin of the work W is set, the manipulator 34 can know where to clamp the work W.

Accordingly, the NC drives the Y-axis motor My to rotate the ball screw 37 to move the frame 39 of the manipulator 34 forward and backward along the gap 46 between the front tables 41, and the lower turret 2 When the work W reaches the position of the narrowed portion C1 (FIG. 4A), the work W is stopped.

In this state, the NC, this time,
When the cylinder 9 of FIG. 1 (FIG. 1) is driven, the wedge-shaped tapered block 5 moves in the front-rear direction (Y-axis direction) via the piston rod 8 and comes into contact with the slope 5A of the wedge-shaped tapered block 5 accordingly. Vertical slide 4 is the guide rail 1
2, so that the lower turret 2 also moves up and down.

Therefore, the NC is determined by the step H1 (FIG. 4A) of the aperture portion C1 in the work information stored in advance.
The lower turret 2 is raised.

Next, at step 104, NC
Determines whether or not the lower turret 2 has risen to a predetermined step H1. If it has not risen (NO), the process returns to step 103 to perform the same operation, and if it has risen (YES), Proceed to step 105.

That is, if the lower turret 2 has risen to the predetermined step H1 in step 104,
As shown in (A), the lower turret 2 can abut the lower surface of the squeezed portion C1 to place the work W thereon.

Therefore, in step 105, NC
By lowering the upper turret 1, the work W can be clamped.

For this reason, as in the conventional case (FIG. 7B),
The squeezed portion C1 is not crushed, and as described later, the work on which the squeezed portion C1 is formed can be positioned, and the processing efficiency of the work can be improved.

Next, in step 106, the side of the clamped work W to be bent is selected by rotating the lower turret 2.

Next, in step 107, the work W is positioned by moving the frame 39 forward and backward, and in step 108, the top die 3 is moved.
By lowering the workpiece 1, the workpiece W is clamped, and in step 109, bending is performed.

That is, the NC drives the Y-axis motor My (FIGS. 1 and 2A) again to rotate the ball screw 37, and moves the frame 39 of the manipulator 34 into the gap 46 between the front tables 41. Forward and backward along.

As a result, the clamped work W can be positioned at the bending position M (FIG. 2A) according to the flange size. By bending the bend beam 33 up and down while holding the work W by the action, the bending process can be performed.

(2) An operation in the case where a downward molded portion C2 (FIG. 4B) such as an emboss is formed on the work W.

First, in step 101, the work W
And the origin is set (FIG. 2 (B)). In step 102, the frame 39 of the manipulator 34 is moved. In step 103, the lower turret 2 is moved to the step H2 of the downward molding portion C2 (FIG. 4 (B)). Raise and lower according to.

That is, as in the case of the above (1), when the work W is set at the origin, the manipulator 34 can know where to clamp the work W.

Therefore, the NC drives the Y-axis motor My to rotate the ball screw 37 to move the frame 39 of the manipulator 34 forward and backward along the gap 46 between the front tables 41, and the lower turret 2 When the workpiece W reaches the position of the clamp portion (FIG. 4B), it is stopped.

In this state, the NC, this time,
When the cylinder 9 of FIG. 1 (FIG. 1) is driven, the wedge-shaped tapered block 5 moves in the front-rear direction (Y-axis direction) via the piston rod 8 and comes into contact with the slope 5A of the wedge-shaped tapered block 5 accordingly. Vertical slide 4 is the guide rail 1
2, so that the lower turret 2 also moves up and down.

Therefore, the NC is a step H2 of the downward forming portion C2 in the work information stored in advance (FIG. 4B).
Only the lower turret 2 is raised.

Next, at step 104, NC
Determines whether or not the lower turret 2 has risen to a predetermined step H2. If the lower turret 2 has not risen (NO), the process returns to step 103 to perform the same operation, and if it has risen (YES), Proceed to step 105.

That is, if the lower turret 2 has risen to the predetermined step H2 in step 104,
As shown in (B), the lower turret 2 can rest on the work W by contacting the lower surface of the work W.

Therefore, in step 105, NC
When the upper turret 1 is lowered, the workpiece W can be clamped.
By rotating the lower turret 2, the side of the clamped work W to be bent can be selected.

In other words, the conventional lower turret 56 (see FIG. 6,
7), since no lifting mechanism is provided, in the case as shown in FIG.
1 and the lower turret 56 could not be rotated.

Therefore, the side of the work W to be bent could not be selected, and the work efficiency of the work W was extremely low.

However, according to the present invention, the provision of the lifting mechanism 35 allows the lower turret 2 to be raised by the step H2 of the downwardly formed portion C2 in the case of FIG. 4B. Thus, the lower turret 2 can receive the work W thereon.

As a result, the downwardly formed portion C2 of the work W does not come into contact with the front table 41 (FIG. 4).
(B)) The lower turret 56 can be rotated, and the side of the workpiece W to be bent can be selected, so that the processing efficiency of the workpiece W is improved.

Next, similarly, in step 107, the work W is bent forward and backward according to the flange size by moving the frame 39 forward and backward.
If (A)) is determined, in step 108,
By lowering the top die 31, the work W is held, and in step 109, the bend beam 33 is turned up and down to perform bending.

In the above embodiment, the lifting mechanism 35 shown in FIG. 1 has been described in detail. However, the present invention is not limited to this, and the lifting mechanism 35 shown in FIG. Of course.

[0068]

As described above, according to the present invention, the work positioning device for a panel bender has an upper turret, a lower turret, and an elevating mechanism. The work is placed by raising and lowering according to the above, the work is clamped in cooperation with the upper turret, and then the work is rotated and positioned at the bending position, so that the lower turret has an uneven portion. Since the work can be placed, the work on which the uneven portion is formed can be positioned, and the technical effect that the processing efficiency of the work can be improved is achieved.

[0069]

[Brief description of the drawings]

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

FIG. 2 is a side view and a plan view of FIG.

FIG. 3 is a diagram showing another embodiment of the present invention.

FIG. 4 shows a lower turret 2 and uneven portions C1, C according to the present invention.
FIG. 4 is a diagram illustrating a relationship with a workpiece W on which a reference numeral 2 is formed.

FIG. 5 is a flowchart illustrating 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 Upper turret 2 Lower turret 3 Lower turret mounting plate 4 Vertical sliding body 5 Wedge-shaped taper block W Work C1, C2 Uneven part H1, H2 Step of uneven part C1, C2 M Bending position

Claims (3)

[Claims] An upper turret, a lower turret, and an elevating mechanism, wherein the lower turret is moved up and down in accordance with a step of an uneven portion of the work, and the work is placed on the upper turret. A work positioning device for a panel bender, characterized in that the work is clamped, rotated and positioned at a bending position by the cooperation of the above. 2. The elevating mechanism is constituted by a wedge-shaped tapered block that is moved in the front-rear direction by a cylinder, and a lower turret is slidably mounted along a slope of the wedge-shaped tapered block. The work positioning device for a panel vendor according to claim 1, wherein the lower turret moves up and down according to the movement of the work. 3. The lowering turret according to claim 1, wherein the lifting mechanism comprises a ball screw rotated by a Z-axis motor, the lower turret is screwed onto the ball screw, and the lower turret moves up and down according to the rotation of the ball screw. Work positioning device for panel vendors.