JP2007167860A - Billet feeding apparatus for forging press - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an automatic press apparatus which can be used for the both of the vertical hitting and the horizontal hitting of a billet and can handle the billet heavy in weight. <P>SOLUTION: This billet feeding apparatus comprises; a conveyer C for conveying the heated billet from a heating furnace; a charging device Cg in which a vertical-setting receiving table 5 for feeding the billet b to the forging pressin the vertical-setting state and a horizontal-setting receiving table 4 for feeding the billet b to the forging press in the horizontal-setting state can selectively be equipped; a robot R for feeding the billet b from the conveyer C to the horizontal-setting receiving table 4 in the charging device Cg in the horizontal-setting state; and a shoot S for feeding the billet b from the conveying C to the vertical-setting receiving table 5 in the charging device Cg in the vertical-setting state. The robot R is the general purpose robot having a hand and an arm by which the billet b on the shoot S is grasped, is moved in an optional path and is placed on the horizontal-setting receiving table 4 in the charging device Cg. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a billet supply facility for a forging press. More specifically, the present invention relates to a billet supply facility for both vertical and horizontal, which can supply a billet to a forging press both horizontally and vertically.

  Conventionally, forging equipment automation devices are generally composed of a charging device installed between the heater and the forging press, a transfer feeder that transports between each process in the press, and a discharging device that takes out the forged product to the outside of the press. ing.

  In the conventional charging device, the chute and the conveyor are dedicated to the billet size, but in that case, it is necessary to replace the chute and the conveyor according to the change of the billet size, and the flexibility is impaired. Productivity did not increase. In addition, this has been a cause of a lower operating rate than other molding machines (for example, casting machines, machine tools, etc.).

In addition, billet forging includes vertical punching and horizontal punching. According to each processing method, when making a horizontal punch, the billet is rotated 90 ° in a horizontal plane and supplied to the press. It is rotated 90 ° in the vertical plane and supplied to the press.
In the case of the above-described vertical strike, if the billet aspect ratio is outside the appropriate range, stable 90 ° rotation itself is difficult. Therefore, it is extremely difficult to use both vertical and horizontal strikes with the same charging device.
In particular, in the hot forging press, the scale generated from the billet is accumulated around the conveyance line, making it difficult to rotate the billet.

In the above situation, there is one disclosed in Patent Document 1 as a charging device for both vertical and horizontal forging that has been actually used as the prior art.
The technique of Patent Document 1 is an articulated charging device designed to be very small, and is used by being attached to the lower part of the transfer feeder box on the press entry side. Therefore, the size of the billet is limited due to space problems, and the billet transportation up to several kg is practically limited.

JP-A-8-174134

  In view of the above situation, the present invention is capable of stable conveyance regardless of billet size and shape, can be used for both vertical and horizontal strikes, and can supply billets for forging presses that can handle heavy billets. The purpose is to provide equipment.

The billet supply facility for the forging press according to the first aspect of the present invention comprises a conveying means for conveying the heated billet from the heating furnace, a vertically placing cradle for supplying the billet to the forging press in a vertically placed state, and a horizontally placed state. A charging device that can be selectively equipped with a horizontal cradle for feeding; a horizontal feeding device that feeds billets from the transport means to the horizontal cradle of the charging device in a horizontal state; and the transport A vertical supply device that supplies billets from the means to the vertical receiving tray of the charging device in a vertical state.
A billet supply facility for a forging press according to a second aspect of the present invention is the horizontal mounting device according to the first aspect, wherein the horizontal supply device grips the billet on the conveying means and moves an arbitrary trajectory. A robot having a hand and an arm placed on the robot.
A billet supply facility for a forging press according to a third aspect of the present invention is characterized in that, in the first aspect of the invention, the vertical supply device is a chute that moves the billet from the transport means to the vertical mounting base of the charging device. .

According to the first aspect of the invention, the billet can be horizontally placed on the horizontal stand by the horizontal supply device, and the billet can be vertically placed on the vertical stand by the vertical supply device. By selectively attaching to the charging device, billet vertical supply and horizontal supply can be easily changed.
According to the second invention, the billet can be placed on the horizontal mounting stand of the charging device through a free trajectory by grasping the billet with the robot's hand and turning and extending / contracting the arm. it can. Further, the robot can be set apart from the conveying means and the forging press within the reach of the arm, and a large robot can be set on the floor surface, so that a heavy billet can be handled.
According to the third aspect of the invention, the vertical supply can easily and quickly supply the billet by the chute, so that the productivity is improved.

Next, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a front view of a billet supply facility according to an embodiment of the present invention.

  In FIG. 1, P is a forging press, and on its entry side, there are a conveyor C as a conveying means, a robot R as a horizontal supply device, a chute S as a vertical supply device, and a charge device Cg. There are entrance facilities. The conveyor C is a means for conveying the heated billet discharged from the heating furnace H, and is disposed horizontally between the heating furnace H and the casting press P. The conveyor C is provided with a stopper (not shown) that stops the movement of the billet b at an appropriate position.

  The charging device Cg is installed on the entrance floor. This charging device Cg is a vertical and horizontal charging device, and includes a charge body 3 and an arm 6 as common equipment. The arm 6 is configured to selectively attach the horizontal support 4 (see FIG. 1) and the vertical support 5 (see FIG. 5). Between the conveyor C and the charging device Cg, the robot R is installed as a horizontal supply device, and the chute S is installed as a vertical supply device.

(Horizontal supply device)
Next, details of the horizontal supply device will be described with reference to FIGS.
FIG. 2 is a plan view taken along line II in FIG. FIG. 3 is a plan view taken along line III in FIG. FIG. 4 is a side view taken along line IV in FIG.
The robot R constituting the horizontal supply device has a hand having a function and a degree of freedom for reliably holding billets of various shapes, and an arm having a degree of freedom capable of moving the billet to the press entry side. Any robot can be used. As long as it has such a function and freedom of conveyance, there is no structural limitation, and any of the following types of robots can be employed. Note that the hand rotation function is not necessarily required as long as the direction of the billet can be switched by the movement of the arm in the robot R.
1) Cartesian coordinates (stretch-stretch-stretch-hand)
2) Cylindrical coordinate form (rotation-expansion-expansion-expansion-hand)
3) Polar coordinate type (rotation-turning-telescopic-hand)
4) Articulated type • Articulated polar coordinate type (rotation, turning, turning, hand)
-Articulated cylindrical coordinate type (extension / retraction / turning / turning / hand)
-Articulated Cartesian coordinates (extension / retraction / turning / turning / hand)

If the horizontal stand 4 is mounted on the arm 6 of the charging device Cg, the billet b can be supplied horizontally.
The arm 6 and the cradle 4 are between a position on the charge body 3 away from the forging press P (shown by a solid line) and a position close to the -1 process or the 0 process of the press P (shown by an imaginary line). It is possible to go back and forth.

Next, a method for horizontally supplying billets will be described.
As shown in FIG. 1, the heated billet b sent out from the heating furnace H is conveyed by a conveyor C.
Then, the robot R grasps the billet b stopped by the stopper on the conveyor C with its hand, bends, stretches, extends and contracts the arm, carries it on the charge device Cg, and receives the charge device Cg. The billet b is placed on the table 4.

The details of the billet carry-in operation are as follows.
1-4, reference numerals (1) to (7) correspond to the following reference numerals (1) to (7).
(1) The hand of the robot R grabs the billet stopped by the stopper on the conveyor C.
(2) Lift up the billet a little.
(3) The billet is separated from the conveyor C.
(4) While moving the billet below the conveyor C, the billet is moved closer to the upper side of the charging device Cg.
(5) Turn the billet in a horizontal plane and put it in a horizontal position.
(6) Position it above the cradle 4 of the charging device Cg.
(7) Place the billet on the cradle 4. After placing, retract the hand and arm.
After (7), the arm 6 of the charging device Cg travels in the direction of the press P, and the billet b is supplied to the zero process of the forging press P.

As described above, since the robot R in this embodiment can freely extend and retract the arm, it is not necessary to install it as close to the main body of the forging press P as in the conventional charging device, and it should be installed apart. Therefore, troubles due to scale and mold lubricant are drastically reduced.
In addition, the use of a general-purpose robot is very inexpensive, and has a great merit that a wide variety of machines can be selected according to the billet weight and transport speed. In addition, because the installation space is secured, a large robot can be used and the upper limit of the transport weight is increased.

(Vertical feeder)
Next, an example in which the present invention is configured as a vertical supply device will be described.
FIG. 5 is a front view of a supply device in which the billet supply facility of FIG.

As shown in FIG. 5, the horizontal supply device is configured by a combination of a chute S that sends a plurality of billets b in a row and a vertical support 5.
The vertical stand 5 is a cylindrical member that receives only one billet b, and is provided on the arm 6. Therefore, when the billet b is received at a position directly under the exit of the chute S and then approaches the forging press P, the billet b can be delivered to the press P by a transfeeder in the press.
In the case of this embodiment, the billet b can be supplied simply and quickly by the chute S.

Since it is as above, according to the billet supply apparatus of this embodiment, there exists the following effect.
(A) If the horizontal stand 4 and the vertical stand 5 are selectively attached to the charging device Cg, the billet b can be placed horizontally on the receiving stand 4 of the charging device Cg by the robot R, or the chute S Since the billet b can be placed vertically on the cradle 5, the vertical supply and the horizontal supply of the billet b can be easily changed.
(B) The billet b can be placed on the cradle 4 of the charging device Cg through a free trajectory by grasping the billet b with the hand of the robot R and turning and extending / contracting the arm. . Further, since the robot R can be set apart from the conveyor C and the forging press P within the reach of the arm, and a large robot can be set on the floor surface, it is possible to handle heavy billets.
(C) The vertical placement is shared by the chute S, so that a quicker transfer is possible when the robot R is moved, and productivity is improved.

It is a front view of the example which constituted the billet supply equipment concerning one embodiment of the present invention horizontally. It is an II line arrow top view of FIG. FIG. 3 is a plan view taken along line III in FIG. 1. FIG. 4 is a side view taken along line IV in FIG. 1. It is a front view of the example which constituted the billet supply equipment of Drawing 1 in the vertical installation type.

Explanation of symbols

P Forging press Cg Charging device R Robot S Shoot 3 Charging body 4 Horizontal mounting base 5 Vertical mounting base 6 Arm

Claims (3)

Conveying means for conveying the heated billet from the heating furnace;
A charging device that can selectively be equipped with a vertical cradle for supplying billets to the forging press in a vertical state and a horizontal cradle for supplying the billet in a horizontal state;
A horizontal supply device that supplies billets from the transport means in a horizontal state to a horizontal receiving stand of the charging device;
A billet supply facility for a forging press, comprising: a vertical supply device that supplies the billet from the conveying means in a vertical state to a vertical receiving tray of the charging device. The horizontal supply device is a robot having a hand and an arm that grips a billet on the transport means and moves an arbitrary trajectory to place the billet on a horizontal receiving base of the charging device. The billet supply equipment for forging press according to 1. The billet supply equipment for a forging press according to claim 1, wherein the vertical supply device is a chute for moving the billet from the transport means to a vertical support for the charging device.

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