JP2554045Y2 - Forming equipment - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertical punching machine, and more particularly to a forming apparatus equipped with a plate pressing means which effectively acts on the forming of a plate.

[0002]

2. Description of the Related Art In a conventional hydraulic punching head, a punching head is provided with a punching piston movably in a cylinder tube provided in a head main body, and a punch is clamped to a tip of the punching piston by a clamp. A timing plate that allows the punch to be rotatable around the outer periphery of the piston via a key material, and a side surface of the timing pulley. Provided with an electromagnetic clutch for fixing the punch, and vertically moving the punching head vertically.
An M guide is provided, and a round pressure receiving portion for receiving an operation of a hydraulic piston of a ram cylinder is provided at a rear end of the piston.

As described above, in the hydraulic punching head (punch driving head), the plate material is generally pressed by using a spring to generate the plate pressing force of the plate material pressing plate of the punch.

[0004]

In the punching process, there is no problem with the plate pressing force by such a spring, but when forming a plate material, the plate pressing force by the spring requires wrinkle pressing. Weak when in contact with plate,
At the time of completion of molding, which is the time of maximum compression, the plate pressing force becomes maximum. Therefore, there is an important problem to be solved in that high quality molding is difficult.

An object of the present invention is to solve the above-mentioned problems, to have a simple structure, and to apply an appropriate pressure.
An object of the present invention is to provide a molding apparatus capable of improving the quality of molding processing.

[0006]

In order to achieve the above object, the present invention provides a plate holding device provided on a press body for holding a plate in a vertical state, and a plate holding device provided on one side surface of the plate holding device. A punch driving head containing a punch hydraulic ram cylinder for holding the punch detachably and pressing the punch, and a die provided on the other side of the plate material holding device and having a tip opposed to the punch at the tip so that the die is detachable. A die driving head having a built-in hydraulic ram cylinder for holding and pressing the die, and the punch driving head and the die driving head are vertically movable, and the punch and die hydraulic ram cylinders are A plate pressing plate for applying a plate pressing force to the surface of the plate when performing press working on the plate by cooperation of the punch and the die; A vertical pressing machine which is provided around the punch of the punch driving head separately from the punch ram cylinder which operates the punch, and applies a pressing force required for forming to the pressing plate. Forming apparatus comprising a working piston.

[0007]

[Function] By adopting the molding device of the present invention,
The configuration is provided by providing a plate presser driving piston that is provided around the punch of the punch driving head separately from the punch ram cylinder that operates the punch and that applies the plate pressing force required for forming work to the plate presser plate. It is simple and the plate holding force is appropriate, so that the quality of the forming process can be improved.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 2 is a perspective view of a vertical punching machine according to the present invention. In the figure, a vertical punching machine 1 mainly includes a press body 3 and a carriage base 5.
And a carriage 7 and an automatic die changing device 9.

The press body 3 is provided on the carriage base 5 and holds the punch driving head 23 and the die driving head 25 accommodated by a head feed motor 27 and a ball screw 29 (FIG. 1). It can be moved up and down.

The carriage 7 is provided with a left carriage 7L.
And a right carriage 7R. The work W is clamped by a clamp 11 and is provided movably by an LM guide 13 extended on the carriage base 5 in the left-right direction.

The automatic die changing device 9 mainly includes a die magazine 15, a changer 17, and a die reversing device 19. Among them, mold magazine 1
5 is a chain (not shown) driven in parallel by a chain drive motor 21 and this chain.
And a plurality of hooks provided on the housing, and the hooks accommodate the punches and dies as molds.

Further, the changers 17 are provided to face each other, take out the punch holder 37 and the die holder 39 shown in FIG. 1 from the die magazine 15 and supply them to the reversing holder (not shown) of the die reversing device 19. It is.

FIG. 1 is a front sectional view of an embodiment of the present invention. In the figure, parts having the same functions as those in FIG. 2 are denoted by the same reference numerals. Punch driving head 2
Reference numeral 3 denotes a head body 41, a punch driving piston 43 slidable in the head body 41, and a clamping device 45.
And a hydraulic ram cylinder 47.

The clamp device 45 includes a punch 31 held by a mounting screw 49 on a punch holder 37 of the automatic die changing device 9 at the tip of the punch driving piston 43.
It is detachably clamped.

The hydraulic ram cylinder 47 operates the punch 31 by gripping the rear end of the punch driving piston 43 with the spherical tip 53 of the piston rod 51 and making the punch driving piston 43 movable. Let it.

A worm wheel 57 connected to the punch driving piston 43 by a spline 55 and a worm gear 59 for driving the worm wheel 57 are mounted on the head body 41. I have. The worm wheel 57 and the worm gear 59 are connected to the die driving head 2.
5 to form an automatic index device that is driven to rotate in synchronization with the die 33 of No. 5.

A plurality of plate pressing pistons 61 are mounted around the punch driving piston 43 in the head main body 41, and a thrust bearing 6 is attached to the tip of the piston 61.
3 are provided. Further, a plate holding rod 67 is movably provided on the punch holder 37, and one end thereof is screwed to the plate material holding plate 67, and the other end receives the plate holding force of the plate holding piston 61 via the thrust bearing 63. , To provide a necessary plate holding pressure to the plate material W. Reference numeral 67A indicates a moving state of the plate holding plate. The plate holding rod 65 is provided with a return spring 69.

Further, the punch driving head 23 has
Along with the die driving head 25, the ball screw 29 is rotationally driven by the head feed motor 27 shown in FIG. 2 and moves up and down along the LM guide 73 provided between the frame 71 and the frame 71. It is free. Numerals 75 and 77 are hydraulic ports for the plate holding piston 61, the punch and the die holders 37 and 39.

With such a structure, the punch driving piston 43 operated by the ram cylinder 47 is provided.
Separately from the above, by providing a plate pressing piston 61 mounted around the punch driving piston 43 in the head main body 41, it is strong at the time of contact with the plate material W requiring wrinkle pressing, and is formed at the time of maximum compression. At the time of completion, it becomes weak, and it is possible to apply an appropriate plate holding force to the plate material W.

Therefore, in the case of the conventional plate presser using a spring, the problem that the setting of the plate presser force is difficult is effectively solved, and high-quality forming can be realized.

It should be noted that the present invention is not limited to the above-described embodiment, but can be implemented in other modes by making appropriate design changes. Instead of the plurality of plate-holding pistons 61 mounted around the plate, a single plate-shaped plate-holding driving piston may be formed.

[0023]

As is apparent from the above description, the forming apparatus of the present invention is provided around the punch of the punch driving head separately from the punch ram cylinder for operating the punch, and is provided on the plate holding member. By providing a plate presser driving piston that applies the plate presser force required for forming processing, the problems of the prior art are effectively solved, and the configuration is simple.
In addition, the plate holding force is appropriate, and the quality of the forming process can be improved.

[Brief description of the drawings]

FIG. 1 is a front sectional view of one embodiment of the present invention.

FIG. 2 is a perspective view of the vertical punch machine in which FIG. 1 is implemented.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vertical punching machine 23 Punch driving head 25 Die driving head 43 Punch driving piston 47 Hydraulic ram cylinder 61 Plate holding piston

Claims (1)

(57) [Scope of request for utility model registration] 1. A plate material holding device provided on a press body and holding a plate material in a vertical state, and a punch hydraulic pressure provided on one side surface of the plate material holding device for detachably holding a punch at a tip and pressing the punch. A punch driving head having a built-in ram cylinder, and a hydraulic ram cylinder for a die which is provided on the other side surface of the plate material holding device and which detachably holds the die opposite to the punch and press-acts the die at a tip thereof. The die driving head, the punch driving head and the die driving head are vertically movable, and the punch and die hydraulic ram cylinders are operated to cooperate with the punch and die with respect to the plate material. In a vertical punching machine having a plate pressing plate for applying a pressing force to the surface of the plate when performing press working, the punch is operated. And a plate press driving piston provided around the punch of the punch driving head separately from the punch ram cylinder to apply a plate pressing force required for forming to the plate press plate. Processing equipment.