JP2002248542A - Forging press assembly - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a forging press assembly equipped with a formed product conveying apparatus, capable of efficient die exchange and maintenance or cleaning work. SOLUTION: The forging press assembly is equipped with a forging press body 14 that press-forms with an upper and a lower die, a formed product conveying apparatus 4 that conveys formed products, and a cart 5 that mounts the formed product conveying apparatus 4 and is capable of advancing and retracting. The forging press body 14 is equipped with a support plate 10 that supportingly fixes the formed product conveying apparatus 4, the formed product conveying apparatus 4 is equipped with a mating plate 9 capable of mating with the support plate 10, and the cart 5 is equipped with a lifting device 5a that lifts up and down the formed product conveying apparatus 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a forging press apparatus having a function of taking out a molded product from a lower die and transferring the molded product after press-molding an engine valve or the like by a forging press having an upper die and a lower die.

[0002]

2. Description of the Related Art Forging press working is a processing method in which a forged material is heated in a heating furnace such as an inductor coil, and the heated material is loaded into a press die and pressed to produce a molded product. Used.

FIGS. 11 (a) to 11 (c) are schematic flow charts showing steps of an example of forming an engine valve by a forging press, and FIG. 11 (d) is a perspective view showing a shape of a material in each step.

[0004] The hot forging process of an engine valve is usually carried out.
As shown in FIG. 11 (a), the forging material 26a is fed into a heating device 24 such as a heating box provided with an inductor coil, and the heating material 2 which is heated from the heating device 24 and comes out.
6b is supplied to the lower die for rough forming 20a mounted on the die set 27 of the forging press 14, and then, as shown in FIG. 11B, the lower die for rough forming 20a and the upper die for rough forming 20b
Press with In this process, the material 2 before pressing
The shapes of 6a and 26b are cylindrical as shown in FIG. 11 (d), and the rough molded product 28 after being pressed by the lower die for rough molding 20a has the shape as shown in FIG. 11 (d). are doing.

Next, when the upper die for rough molding 20b is lifted,
After picking up the rough molded product 28, the rough molded product 28 is moved and supplied to the lower die 21a for finish molding, and at the same time, the heating device 2
The heating material 26b, which is heated and emerges from the portion 4, is supplied to the lower die 20a for rough forming.

Next, as shown in FIG. 11 (b), the rough molding is performed by pressing the lower mold 20a for rough molding and the upper mold 20b for rough molding, and the lower mold 21a for finishing molding and the upper mold 21b for finishing molding. Forming and finish forming are performed simultaneously. The finished molded article 29 has a shape as shown in FIG.

Next, as shown in FIG. 11 (c), the rough molded product 28 and the finished molded product 29 are picked up and then moved to supply the rough molded product 28 to the lower mold 21a for finish molding. Is sent out to the next process outside the press device 14.

FIG. 12 is a schematic perspective view showing the main structure of a conventional molded article conveying apparatus.

The molded article conveying device shown in FIG. 12 includes a material supply device 35 for supplying a heating material 26b coming out of the heating device 24 to a rough forming lower die 20a mounted on a die set 27 of a pressing device. , Rough molded lower mold 20
a hand 30 for transferring a rough molded product and a hand 31 for transferring a finished molded product for sending the finished molded product out of the press device. The hand 30 for transferring a rough molded product and the finished molded product transfer. The hand 31 is moved forward and backward by an air cylinder 32 for forward and backward movement, an air cylinder 33 for traversing, and an air cylinder 34 for lifting and lowering.
It is composed of devices that perform orthogonal movements of traversing and elevating, and these devices are usually fixed to a forging press with fixing bolts 33a or the like.

In the molded article conveying device, the heating material 26b coming out of the heating device 24 is put into a receiving hole 35a of a material supply device 35 waiting downward by a chute or the like, and the receiving hole 35a is roughened by moving an air cylinder 36. After the heating material 26b is moved to the lower molding die 20a to be dropped into the lower molding lower die 20a and supplied, pressing is performed, and then the rough molding product transfer hand 30 is pressed before the next pressing.
The rough molded product is inserted into the lower mold 21a for finish molding by
At the same time, the finished molded product is sent out of the press device by the finished molded product transfer hand 31.

FIGS. 13 (a) to 13 (e) are flow charts showing a series of operations by the conventional molded article conveying apparatus shown in FIG. 12, and the operations will be described with reference to FIGS.

FIG. 13A shows a standby state. FIG.
In (b), the material supply device 35 extrudes the heating material 26b with the air cylinder 36 and supplies it to the lower mold 20a for rough molding. Pressing is performed after the supply device 35 returns to the standby position. Then, while the press upper die is rising, FIG.
As shown in (c), the rough-molded product transfer hand 30 and the finished-molded product transfer hand 31 were extruded from the rough-forming lower mold 20a and the finish-forming lower mold 21a by the air cylinder 32 of the molded-product conveying device. The air cylinder 3 for gripping the rough molded product 28 and the finished molded product 29
4, the molded products 28, 29 are pulled out from the lower dies 20a, 21a.

Next, as shown in FIG. 13D, the traversing air cylinder 33 of the molded article transport device is operated, and the rough molded article 28 is formed by the rough molded article transfer hand 30 into the lower mold 21a for finish molding. At the same time, the finished product 29 is moved to a position where the finished product 29 is sent out of the forging press by the finished product transfer hand 31. At this time, the rough molded product 28 is lowered by the lifting air cylinder 34 and the rough molded product 28 is inserted into the lower mold 21a for finish molding, and
Is discharged out of the press device 14.

Next, as shown in FIG. 13 (e), the hands 30, 31 of the molded article conveying device are retracted by the forward / backward moving air cylinder 32, and press is performed here. Next, while the press upper die returns to the ascending position, the transport device is moved to the position shown in FIG.
Return to the standby position of (a). The above operation is repeated to forge the engine valve.

[0015]

In the continuous process of the forging press, it is necessary to frequently change the die depending on the life of the die. Furthermore, since a solvent such as a release agent is sprayed on the mold for the purpose of improving the separation of the molded article from the mold, the periphery of the mold and the die set are considerably contaminated, and it is necessary to clean these parts including the molded article conveying device. .

However, in the conventional forging press to which the molded article conveying device is fixed, the forging press body frame, the molded article conveying device, and peripheral devices thereof are arranged around the forging press, so that the space around the die is limited. Therefore, the worker inserts his hand or face in an impossible posture from a narrow gap, avoiding the forging press body frame, the molded product transfer device and its peripheral equipment, and performs die exchange, including the molded product transfer device. Forging press maintenance and cleaning operations are performed, and all of these operations are very inconvenient.

Accordingly, the present invention is to provide a forging press device capable of efficiently performing a mold exchange, maintenance, or cleaning operation of a forging press device provided with a molded article transfer device.

[0018]

A forging press apparatus according to the present invention comprises a forging press body for press-forming with an upper die and a lower die, and a molded product for picking up the molded product formed by the forging press body from the lower die and conveying the same. A forging press device comprising a transport device and a traveling device mounted with the molded product transport device and capable of moving forward and backward with respect to the forging press, and capable of moving forward and backward independently of the molded product transport device. The main body is provided with a support member for supporting and fixing the molded article transport device, and the molded article transport device is provided with an engaging member capable of engaging with the support member,
The traveling device is characterized in that the traveling device is provided with an elevating device that raises the molded article conveying device to separate it from the forging press main body, and lowers the mounted molded article conveying device to couple it to the forging press main body.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to an example of a forging press for an engine valve.

FIG. 1 is a perspective view showing a state in which the molded article conveying apparatus of the present invention is separated from the forging press body. In addition,
2 to 10, the same members as those shown in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted.

FIG. 1 shows an example of a forging press apparatus for forming an engine valve by simultaneously performing a press step of rough forming and a finish forming step. And the rough molded product transfer hand 1 having a function of simultaneously taking up the finished molded product in the finish molding process from the mold, supplying the rough molded product to the finish molding die, and carrying out the finished molded product outside the press device. A finished molded product transfer hand 2 is provided. The rough molded product transfer hand 1 and the finished molded product transfer hand 2 are three motor-driven units.
The orthogonal motion of forward / backward / traverse / elevation / lowering is performed by the axis orthogonal motion device 39. A release agent injection nozzle 3 can be provided between the rough molded article transfer hand 1 and the finished molded article transfer hand 2.

The molded article conveying device 4 is mounted on a traveling device 5 and moves forward and backward by wheels 7 driven by a motor 8 on a rail 6. The traveling device 5 may be configured to be able to independently travel from the molded product transport device 4 after the molded product transport device 4 is mounted on the forging press.

On the side opposite to the forging press, the molded article transporting device 4 has a plate-shaped engaging member 9 having a concave hook 9a facing downward in order to mount the molded article transporting device 4 on the forging press. Is attached.

FIG. 2 is a perspective view showing a support member and an air clamp cylinder for fixing attached to the forging press in order to mount the molded article conveying device on the forging press. This figure is a view as seen from the molded article conveying device side.

In FIG. 2, the concave hook 9a of the engaging member 9 attached to the molded article conveying device 4 engages with the upper convex portion 10a of the plate-like supporting member 10, and at the same time,
The side faces are regulated by guide blocks 12 provided at both ends of the support member 10. Further, a clamp 11a is provided on the air cylinder 11, and the clamp 11a is rotated toward the support member 10 by the air cylinder 11 to press the engaging member 9 against the support member 10 to clamp the same. It should be noted that the proximity sensor 13 confirms that the molded article conveying device 4 is securely mounted on the forging press.

FIG. 3 is a perspective view showing another embodiment of the support member. A hydraulic cylinder 19 is provided on one side of the support plate 10 attached to the forging press, and the side of the support plate 10 shown in FIG. By pressing and fixing the engagement plate 9 of No. 4,
The mounting position accuracy and mounting force of the molded article conveying device 4 to the forging press 14 can be improved.

FIG. 4 is a side flow chart showing how the molded article conveying device of the present invention and the forging press are attached and detached. FIG.
(A) shows a state in which the molded article conveying device 4 is mounted on the forging press 14, the engaging plate 9 of the molded article conveying device 4 is engaged with the support plate 10 of the forging press 14, and the engaging plate 9 is air. The cylinder 11 is pressed against the support plate 10 by a clamp 11a.

During the forging operation, as shown in FIG. 4 (a), the molded article transporting device 4 is mounted on the forging press 14 by the respective support plates 10 and the engaging plates 9 to form an integrated state. The traveling device 5 is on standby immediately below the device 4.

Next, as shown in FIG. 4 (b), when the molded article conveying device 4 is separated from the forging press 14, the air cylinder 11 is driven to release the clamp 11a, and the cylinder 5a of the traveling device 5 is driven. The molded product transporting device 4 is lifted by raising the elevating table 5b, and the molded product transporting device 4 is mounted on the traveling device 5, whereby the engagement between the engagement plate 9 and the support plate 10 is released.

Next, as shown in FIG. 4C, the traveling device 5 on which the molded article conveying device 4 is mounted retreats on the rail 6. By the operation shown in FIGS. 4A to 4C, the molded article transporting device 4 can be detached from the forging press 14. By separating the molded article conveying device 4 from the forging press 14, a working space can be formed around the die of the forging press. At the time of the forging operation, as shown in FIG. 4D, only the traveling device 5 may be separated from the transport device 4 and stand by, as the case may be.

FIG. 5 is a perspective view showing another embodiment of the molded article conveying apparatus of the present invention. In the present embodiment, a heating material which is heated and comes out from a heating device 24 such as a heating box provided with an inductor coil is received by a cylindrical receiving hole 17 a provided at the tip of a heating material supply arm 17, and a turning drive unit 18 is provided. In this case, the heating material supply arm 17 is turned to move the material to the lower die for rough forming of the forging press main body to supply the same. In the present embodiment, the turning type material supply device including the heating material supply arm 17 and the turning drive unit 18 can be detached independently of the forging press, and a work space can be formed around the die of the forging press. Can be.

FIGS. 6 (a) to 6 (e) are plan flow charts showing a series of operations by the molded article conveying apparatus of the present invention shown in FIG.

As shown in FIG. 6 (a), the heating material supplied from the heating device 24 is supplied to the heating material supply arm 17 of the revolving type material supply device provided in the molded article transfer device 4.
Receive at.

Next, as shown in FIG. 6 (b), the heating material supply arm 17 pivots to remove the heating material from the lower mold 20 for rough molding.
After the heating material supply arm 17 returns to the standby position, pressing is performed.

Next, as shown in FIG. 6 (c), while the press upper die is being lifted, the rough molded product transfer hand 1 of the molded product transfer device 4 moves forward and is pushed out of the rough molded lower die 20a. In addition to grasping the rough molded product, the finished molded product extruded from the lower mold for final molding 21a is hooked by the hook-shaped finished molded product transfer hand 2 and raised, and each molded product is raised and lowered. Pull out from 20a, 21a.

Next, as shown in FIG. 6 (d), the molded article conveying device 4 moves in a transverse direction, and moves the rough molded article held by the rough molded article transfer hand 1 to the position of the lower mold 21a for finish molding. At the same time, the finished molded product caught by the finished molded product transfer hand 2 is sent out to an unloading device outside the press device 14. At the same time, the rough molded product transfer hand 1 descends and supplies the rough molded product to the lower die 21a for finish molding.

Next, as shown in FIG. 6 (e), the molded article conveying device 4 is retracted. Here, after the press device performs the pressing, the molded product transport device 4 is returned while the upper die returns to the standby position.
Returns to the standby position in FIG. The above operation is repeated to forge the engine valve.

FIG. 7 is a plan view showing a state in which the revolving material feeding apparatus of the present invention shown in FIG. During press molding,
As shown in FIG. 7 (a), the molded article conveying device 4 is mounted on the forging press 14 by the engagement plate 9 and the support plate 10.
As shown in (b), the molded article conveying device 4 is mounted on the traveling device 5 and separates from the forging press 14 to open a working space around the mold to facilitate the work.

FIG. 8 is a perspective view showing another embodiment of the molded article conveying apparatus of the present invention. The heating material transfer hand 25 having a function of gripping the heating material supplied from the heating device to the molded article transfer device of the present invention is fixed. The work space around the mold can be opened to facilitate the work.

FIG. 9 is a flow chart showing a series of operations by the molded article conveying device shown in FIG.

As shown in FIG. 9A, the molded article conveying device 4 is in a standby state, and the rough molding and the finish molding are completed.

Next, as shown in FIG. 9B, the heating material transfer hand 25 integrated with the molded article transporting device 4 moves forward to grasp the heated material supplied from the heating device 24 and to transfer the rough molded article. The hand 1 for holding a rough molded product and the hand 2 for transferring a finished molded product hold or hook the finished molded product.

Thereafter, as shown in FIG. 9 (c), the hand 1 for transferring a rough molded product and the hand 2 for transferring a finished molded product are raised to remove the rough molded product and the finished molded product from the lower mold 20a for rough molding.
And pulling out from the lower mold 21a and traversing,
The rough molded product is moved to the position of the lower die 21a for finish molding, and the finished molded product is sent out to the unloading device 23 outside the forging press 14. At this time, the heating material transfer hand 25
Does not move up and down. Next, the rough molded product transfer hand 1 and the finished molded product transfer hand 2 are lowered, and the rough molded product is inserted into the lower mold 21a for finish molding. At this time, the heating material transfer hand 25 performs only the traversing operation and supplies the heating material to the rough forming lower mold 20a.

Next, as shown in FIG. 9D, the molded article transporting device 4 moves backward. Here, while the press device 14 performs the press, and the upper press die returns to the ascending position, the molded article transport device 4
Returns to the standby position in FIG. The above operation is repeated to forge the engine valve.

FIG. 10 is a plan view showing a state in which the molded article conveying device shown in FIG. 8 is detached from a forging press. At the time of press forming, as shown in FIG.
4, the molded article transporting device 4 is mounted by the engagement plate 9 and the support plate 10, and when the mold is changed or the maintenance work is performed, as shown in FIG.
Is mounted on the traveling device 5 and separates from the forging press 14 to provide a work space around the mold to facilitate the work.

In any of the cases shown in FIGS. 1 to 10, a release agent injection nozzle 3 is provided between the rough molded product transfer hand 1 and the finished molded product transfer hand 2, and the rough molded product is finished molded. Immediately before supply to the lower mold 21a, an appropriate amount of the release agent may be sprayed on the lower mold 21a for finish molding.

[0047]

According to the present invention, the molded article transport device can be easily attached to and detached from the forging press by inserting and removing the engagement plate attached to the molded article transport device and the support plate attached to the forging press. Since the traveling device equipped with the transport device enables it to be moved to a place away from the forging press, it is possible to provide a work space around the die, so that the die replacement work and cleaning work in the forging press can be easily performed. It is possible to perform the maintenance and cleaning work of the molded article transport device easily.

Further, in the present invention, the heating material supplied from the heating device is received by a cylindrical receiving structure part,
By integrating the device that supplies the lower die for rough forming of the press body with the heating material supply arm system with the molded product transfer device, it is possible to configure the heating material supply device even in a press with a narrow gate width. .

Further, according to the present invention, in the support plate of the molded article transfer device which is easy to attach and detach, a pressing force by a hydraulic cylinder is applied from one side, and the entire molded article transfer device is securely pushed to the side guide block on the opposite side. By applying this, the accuracy of the mounting position and the mounting force can be increased, and the molded article transfer device can be securely fixed even to a press device with severe vibration.

Further, in the present invention, a heating material transfer hand having a function of gripping the heating material coming out of the heating device is provided in the molded article transporting device and is traversed, so that the heating material can be used for rough molding of the heating material. The feeding to the mold is ensured, and the centering adjustment work of the heating material supply device can be facilitated.

Further, in the present invention, when the rough molded product is supplied to the lower mold for finish molding, an injection nozzle of a release material is provided between the hand for transferring the rough molded product and the hand for transferring the finished molded product. By applying a proper amount of release agent to the final molding die immediately before supplying the rough molding to the final molding die, the surroundings of the forging press die should not be unnecessarily stained. Becomes possible.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state in which a molded article conveying device of the present invention is separated from a forging press.

FIG. 2 is a perspective view showing a support plate and an air clamp cylinder attached to a forging press in order to mount the molded article conveying device of the present invention on the forging press.

FIG. 3 is a perspective view showing another embodiment of the support plate of the present invention.

FIG. 4 is a side flow diagram showing a state in which a molded article conveying device of the present invention and a forging press are detached.

FIG. 5 is a perspective view showing another embodiment of the molded article conveying device of the present invention.

FIG. 6 is a plan flow chart showing a series of operations by the molded article transport device of the present invention shown in FIG.

FIG. 7 is a plan view showing a state in which the molded article transfer device in which the turning type material supply device of the present invention shown in FIG.

FIG. 8 is a perspective view showing another embodiment of the molded article conveying device of the present invention.

9 is a flowchart showing a series of operations performed by the molded article transport device shown in FIG.

FIG. 10 is a plan view showing a state in which the molded article transfer device shown in FIG. 8 is detached from a forging press.

FIG. 11 is a schematic flowchart showing a step of forming an engine valve by a hot forging press.

FIG. 12 is a schematic perspective view showing the main structure of a conventional molded product conveying device in a process of molding an engine valve by hot forging.

FIG. 13 is a flowchart showing a series of operations performed by a conventional molded article conveying device in a step of molding an engine valve by hot forging.

[Explanation of symbols]

1: Hand for rough molded product transfer 2: Hand for finished molded product transfer 3: Release agent injection nozzle 4: Molded product transfer device
5: Traveling device 5a: Cylinder 5b: Lifting platform 6: Traveling rail 7: Wheel 8: Traveling motor
9: Engagement plate 9a: Hook 10: Support plate 10a: Convex part on top of support plate 11: Air cylinder 11a: Clamp 12: Side guide block 13: Detachment confirmation sensor 14: Forging press 15:
Guide post 17: Heating material supply arm 17a: Receiving hole 18: Driving device of rotating heating material supply device 19: Hydraulic cylinder 20a: Lower die for rough forming
20b: Upper mold for rough molding 21a: Lower mold for finish molding 2
1b: Upper die for finish molding 22: Press body frame
23: unloading device 24: heating device 25: heating material transfer hand 26
a: Forging material 26b: Heated material 27: Die set 28: Rough molded product 29: Finished molded product 30: Hand for rough molded product transfer 31: Hand for finished molded product transfer 3
2: Air cylinder for forward / backward movement 33: Air cylinder for traverse 33a: Fixing bolt 34: Air cylinder for lifting 35: Direct-acting material supply device 35a: Receiving hole 36: Air cylinder for direct-acting material supply 39: Motor driven 3-axis orthogonal motion device

Claims (7)

[Claims] 1. A forging press body for press-forming with an upper mold and a lower mold, a molded article conveying device for picking up a molded article formed by the forging press body from a lower mold, and conveying the molded article. A forging press device comprising a traveling device capable of moving forward and backward with respect to the forging press, and capable of moving forward and backward independently of the molded product conveying device, wherein the forged press body supports and fixes the molded product conveying device. A support member is provided, the molded article transport device is provided with an engaging member engageable with the support member, and the traveling device is provided with the molded product transport device raised, separated from the forging press main body, and mounted molding. A forging press device comprising an elevating device for lowering an article conveying device and connecting the same to a forging press body. 2. A forging press body for simultaneously performing rough molding and finish molding by an upper mold and a lower mold, a molded article transport device for transporting a molded product formed by the forged press body, and a molded product transport device mounted thereon. A forging press device having a traveling device capable of moving forward and backward with respect to a forging press, and capable of moving forward and backward independently of a molded product conveying device, wherein the forging press body has a support for supporting and fixing the molded product conveying device. A plate is provided, and the molded product transfer device is equipped with an engaging plate that can be engaged with the support plate attached to the forging press main body and a rough molded product roughly formed by the forging press main body from the lower mold for rough molding and finish molding Provide a hand for transferring rough molded products to be supplied to the lower mold for production, and a hand for transferring finished molded products that take the finished molded product from the lower mold for finish molding and carry it out of the forging press. 2. The apparatus according to claim 1, further comprising a lifting device for raising and lowering the molded article transporting device from the forging press body, and for lowering the mounted molded article transporting device to be coupled to the forging press body. Forging press equipment. 3. A heating material supply arm, which is rotatable, is rotatably provided on the molded article transfer device, receives the heating material supplied from the heating device to the heating material supply arm, and rotates the heating material supply arm to form a forging press. 3. The forging press device according to claim 2, wherein a receiving hole for supplying the lower die for rough forming of the main body is formed. 4. A forging press main body is fixed to the molded article conveying device, the chucking heating material supply arm is fixed, the heating material supply arm receives and holds the heating material supplied from the heating device, and the heating material supply arm traverses. 3. The forging press apparatus according to claim 2, wherein the forging press apparatus is configured to move to a position of the lower die for rough forming and release the chuck to supply the lower die for rough forming. 5. The pressing device according to claim 2, wherein a pressing device is provided for pressing the engaging plate engaged with the support plate from behind and pressing the engaging plate against the support plate.
A forging press device according to the item. 6. A pressing device for pressing an engaging plate engaged with the support plate from one side and pressing the engaging plate against a side guide block provided on an opposite side of the support plate. 6. The forging press according to any one of items 5 to 5. 7. An injection nozzle for injecting a release agent into a lower mold for finish molding is provided between a hand for transferring rough molded products and a hand for transporting finished molded products of the molded product transport device. The forging press according to any one of claims 1 to 6.