JPH0750015Y2 - Panel vendor - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a panel bender in which a work to be bent is fixed to a processing position, and a bender main body is moved to the processing position to process the work.

[Conventional technology]

As a conventional panel bender for bending a plate-shaped work, for example, the one disclosed in Japanese Patent Publication No. 61-103625 is known.

The panel bender described above is configured such that the work carried in front of the bender main body by the conveying means is sent to the bender main body side by the pusher mechanism, and the bender main body is fixed to the floor.

[Problems to be solved by the device]

However, in the conventional panel bender, one place is bent in one process. Therefore, when a plurality of parts of a work are bent, the work is repositioned after each bending work and the next bend is performed. Therefore, it took a lot of time to finish the bending of one work, and there was a problem that productivity was poor.

The present invention has been made for the purpose of improving the above-mentioned problems, and is intended to improve productivity by providing a panel bender capable of bending a plurality of places at the same time.

[Means and Actions for Solving the Problems]

In order to achieve the above-mentioned object, this invention clamps a work between a pressing die that is vertically moved by a work pressing cylinder and a receiving die that is fixed to the bed side of the main body, and supports a spindle by a vertical bending drive device. In a panel bender that bends the work with a downward bending mold and an upward bending mold provided on a rotating arm that is rotated around the center, insert a conveyor that carries the workpiece to be bent to the processing position by the panel bender. A plurality of main bodies are provided at opposing positions, and these main bodies are independently movable in the contacting and separating directions with each other by a forward and backward feeding device provided for each main body, and a conveyor provided between the main bodies is provided. The width adjustment is automatically performed by interlocking with the approaching / separating operation of the main body, and each main body moves to the work side with respect to the work loaded into the processing position, and multiple parts of the work are bent at the same time. Addition With it, bending even if the size of the workpiece to be machined is Hen', since the width of the conveyor in conjunction with the contact and separation operation of the main body is automatically adjusted, it is unnecessary recombinant cumbersome setup.

〔Example〕

 An embodiment of the present invention will be described in detail with reference to the drawings.

In the figure, 1 is the body of the panel bender, in which a plurality of work holding cylinders 2 are mounted on the upper portion of the C frame 1a at equal intervals in the width direction, and pistons projecting downward from these work holding cylinders 2 The upper part of the elevating member 3 is attached to the tip of the rod 2a.

A presser die 4 is attached to the lower part of the elevating member 3, and a receiving die 5 attached to the bed 1b of the main body 1 is provided below the presser die 4. The bent portion of the work A to be bent is sandwiched between the five.

Further, 6 is a work clamp release device that restricts the lifting of the elevating member 3 and facilitates repositioning of the work A, and 7 is a slider 8a of the gap adjusting device 8 whose base end is supported by a support shaft 8b. The rotating arm 9 is a vertical bending drive device that vertically moves the tip end side of the rotating arm 7 around a support shaft 8b.

As shown in FIG. 2, the work clamp release device 6 has a plurality of locking pins 6a planted on the upper part of the elevating member 3. The tip side of each locking pin 6a is projected rearward, and an inclined surface 6b is formed at the tip, and a stopper pin 6c installed behind the locking pin 6a is locked to this inclined surface 6b. You can do it.

The stopper pin 6c is movably supported in the front-rear direction of the main body 1, and an inclined surface 6d that abuts the inclined surface 6b of the locking pin 6a is formed at the tip end of the stopper pin 6c.
An operating cylinder 6e is connected to the rear end of 6c, and the stopper pin 6c is moved back and forth in the direction of the locking pin 6a by the operating cylinder 6e.

Further, the tip end side of the rotating arm 7 is vertically branched, and a lower bending die 10 is formed in the upper branch portion 7a so that the tip portion is directed obliquely downward, and in the lower branch portion 7b. ,
Upper bending dies 11 each having a tip end directed obliquely upward are attached, and the work A is provided between the lower bending dies 10 or the upper bending dies 11 and the pressing die 4 and the receiving die 5.
Can be bent at a predetermined angle.

On the other hand, the gap adjusting device 8 has sliders 8a provided on the left and right sides of the main body 1 and guided by guide rails 8c laid in the front and rear direction of the main body 1 so as to project from the sliders 8a. The base end of the rotating arm 7 is supported on the supporting shaft 8b as shown in FIG.

Each of the sliders 8a is biased rearward by a biasing means 8d such as a compression spring provided on the front side, and inclined surfaces 8e are formed in the rear portion of the slider 8a, and these inclined surfaces 8e are wedge members. It is in contact with 8f.

The wedge members 8f are movably supported in the left-right direction of the main body 1 as shown in FIG.
One end side of the ball screw shaft 8g, which is a reverse screw, is screwed into each.

The other end of each ball screw shaft 8g is connected by a joint 8h, and one ball screw shaft 8g and the drive motor 8i are linked by an endless belt 8j.
By rotating each ball screw shaft 8g at the same time,
Each wedge member 8f can be moved in the contacting / separating direction.

Further, the vertical bending drive device 9 has two sets of screw jacks 9a spaced apart from each other on the upper part of the main body 1 and a drive shaft 9b protruding downward from the screw jacks 9a.
The upper end on the tip side of the rotating arm 7 is pivotally attached to the lower end of the rotary arm 7 via a pin 9h.

The input shaft 9c of the screw jack 9a is connected to the output shaft 9e of the speed reducer 9d provided between the screw jacks 9a, respectively, and the vertical drive motor 9g is connected to the input shaft 9f of the speed reducer 9d. The vertical drive motor 9g vertically moves the tip end side of the rotary arm 7 through the screw jack 9a about the support shaft 8b.

On the other hand, the main body 1 is mounted on guide rails 12a protruding from the upper surface of the slide base 12, and can be moved back and forth along these guide rails 12a. Each main body 1 as shown in FIG.
A front-rear drive motor 13a of the front-rear feeder 13 is provided for each.

A feed screw shaft 13b is connected to the front-rear drive motor 13a so that the feed screw shaft 13b can be rotated, and a nut member 13c provided on the bottom of the main body 1 is screwed on the feed screw shaft 13b. The main body 1 is independently moved back and forth by the rotation of the feed screw shaft 13b.

Further, in front of the main body 1, there are provided a conveyor 16 for carrying in the work A to be bent, and a work clamp device 15 for fixing the work A at a processing position. Back gauges 17 that are brought into contact with and are used to position the bending position are installed.

As shown in FIG. 7, the conveyor 16 is installed so as to be located between two main bodies 1 provided so as to face each other, and a pedestal 16 fixed on the slide base 12 is provided.
a (see FIG. 10).

Two rotary shafts 16b and 16c are horizontally provided on both upper ends of the frame 16a so as to be parallel to each other.
A plurality of pulleys 16d are provided on b and 16c.

The pulley 16d located in the center of the rotating shafts 16b and 16c is
While being fixed to b and 16c, the other pulley 16d is movable in the axial direction of the rotating shafts 16b and 16c, and a plurality of endless conveyor belts 16e are wound between these pulleys 16d. There is.

These conveyor belts 16e are also wound around a drive pulley 16f driven by a conveyor motor (not shown), rotated by these drive pulleys 16f, and the conveyor 1
Frames 16g provided on both sides of 6 are fixed to the main body 1 side, and when the main body 1 moves, each conveyor belt 16
e moves in the moving direction of the main body 1 to change the interval between the conveyor belts 16e.

It should be noted that FIG. 9 shows a state in which the interval between the conveyor belts 16e is contracted so as to be the narrowest.

On the other hand, in the back gauge device 17, as shown in FIGS. 12 and 13, a back gauge 17b is screwed to the tip of an axial rod 17a supported movably in the horizontal direction.

The base end side of the shaft rod 17a is projected toward the moving table 17c,
It is opposed to a touch sensor 17e provided on the moving table 17c so as to be movable in the left-right direction.

The movable table 17c is movably supported in the front-rear direction of the main body 1, and a nut member 17f also provided on the lower portion is screwed to a ball screw shaft 17h rotated by a back gauge drive motor 17g. Back gauge drive motor 17g
Thus, the back gauge 17b can be moved and adjusted in the front-back direction of the main body 1.

Further, reference numeral 20 in the drawing denotes a stopper device for positioning the work A carried in by the conveyor 16 with respect to the carrying direction B, for example, three stopper cylinders arranged in parallel in the work carrying direction B.
Has 20a.

As shown in FIG. 14, stoppers 20c are attached to the piston rods 20b protruding upward from the stopper cylinders 20a. For a work A having a small width, the stopper 20c closest to the carrying-in direction is the stopper. In the case of the work A having the largest width, which is projected to a position higher than the upper surface of the conveyor belt 16e by the cylinder 20a, the stopper 20c farthest from the carry-in direction is the stopper cylinder 20c.
Further protruding, the work A is stopped and positioned.

Next, the operation will be described. The work A to be bent is carried in by the conveyor 16 from the direction of the arrow B shown in FIG. 1 and stopped at the processing position by one of the stoppers 20c of the stopper device 20.

Work clamp device when work A is stopped at processing position
The movable clamp 15b is lowered by the clamp cylinder 15a of 15 and the work A is moved between the fixed clamp 15c provided between the conveyor belts 16e of the conveyor 16 and the movable clamp 15d.
Are fixed (see FIG. 8).

Next, the feed screw shaft 13b is rotated by the front-rear drive motor 13a of the front-rear feeder 13, and the main body 1 is moved to the work A side. When two parts of the work A are bent at the same time, the main body 1 provided at the opposing position is simultaneously moved to the work A side. And a back gauge device 17 provided in the main body 1
When the end of the work A comes into contact with the back gauge 17b of the shaft rod 1
The touch sensor 17e is operated via 7a, the main body 1 is stopped at that position, and the positioning of the bending position is completed.

When the positioning of the bending position is completed, the work holding cylinder 2 lowers the elevating member 3, and the work A is clamped between the holding die 4 and the receiving die 5 attached to the elevating member 3.

When the work A is bent upward in this state, the turning arm 7 is turned upward about the support shaft 8b by the up-and-down bending driving device 9, and the upward bending die 11 attached to the turning arm 7 is rotated.
As a result, the end portion of the work A sandwiched between the pressing die 4 and the receiving die 5 is pushed upward, and upward bending is performed.

The locus of the upper bending die 11 at the time of upward bending is shown in FIG.

At this time, the bending angle can be arbitrarily adjusted by adjusting the amount of elevation of the rotating arm 7.

[Effect of device]

As described in detail above, the present invention provides a bender main body so as to face a conveyor for loading a work to be bent, and the work is loaded by the conveyor and positioned and fixed at the machining position. Move to
Since bending is performed at multiple locations at the same time, productivity is improved compared to the conventional panel bender that repositions the work every time the folding down of one location is completed and bends at multiple locations. Greatly improved.

Also, because each body can move independently in the approaching and separating direction,
Both ends of the work can be bent into a deformed shape,
This greatly improves versatility, such as increasing the types of work that can be bent, and the width of the conveyor is automatically adjusted in conjunction with the contact and separation movements of the main body, so the conveyor size changes every time the work size changes. It is not necessary to artificially adjust the width, and the time required for setup change can be shortened, which improves productivity.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, FIG. 1 is an overall perspective view, FIG.
The drawing shows a side view of a part of the vertical bending driving device, which is partially cut away, FIG. 4 is a sectional view taken along line IV-IV of FIG. 3, FIG. 5 is a lateral sectional view of the gap adjusting device, and FIG. 6 is a vertical bending driving device. FIG. 7, FIG. 7 is a plan view showing the arrangement of conveyors, FIG. 8 is a front view of the same, FIG. 9 is a plan view of a conveyor, FIG.
11 is a sectional view taken along the line XI-XI of FIG. 10, FIG. 12 is a partially cutaway side view of the back gauge device, and FIG. 13 is an enlarged sectional view of the same.
FIG. 14 is an enlarged view of the stopper device, and FIG. 15 is an operation explanatory view. 1 is a main body, 1b is a bed, 2 is a pressing cylinder, 4 is a pressing type, 5 is a receiving type, 7 is a rotating arm, 8b is a support shaft, 9 is a vertical bending drive device, 10 is a downward bending type, 11 is an upward bending type. Bending die, 13 is a front and rear feeder, and 16 is a conveyor.

Claims (1)

[Scope of utility model registration request] 1. A pressing die 4 which is vertically moved by a work pressing cylinder 2 and a receiving die 5 which is fixed to a bed 1b side of a main body 1.
The work A is sandwiched between the two and the work A is bent by the lower bending die 10 and the upper bending die 11 provided on the rotating arm 7 which is rotated around the support shaft 8b by the vertical bending drive device 9. In a panel bender to be processed, a plurality of main bodies 1 are provided at positions facing each other with a conveyor 16 for carrying a work A to be bent by the panel bender into a processing position.
Is independently movable in the contacting / separating direction by the forward / backward feed device 13 provided for each main body 1, and the width adjustment of the conveyor 16 provided between the main bodies 1 is performed by the contacting / separating operation of the main body 1. A panel vendor that automatically operates in conjunction with.