JP2699524B2 - Forging machine - Google Patents

Description

The present invention relates to a forging machine.

[Prior Art] FIG. 28 shows a conventional forging machine a, which has a frame b of a required shape, a slide d having a forming tool c fixed to a front end thereof, and a screw shaft e capable of moving forward and backward. The adjusting mechanism f is slidably inserted into the frame b at the rear end of the slide g of the position adjusting mechanism f so that the front end of the screw shaft e can be in contact with the rear surface of the slide d via a seat. The link i of the provided reciprocating mechanism h is connected.

The reciprocating mechanism h is for reciprocating the forming tool c, and connects the link i to an eccentric portion of an eccentric shaft j which is rotated by a driving device (not shown).

The link i causes the position adjusting mechanism f to reciprocate at a constant stroke with the rotation of the eccentric shaft j.

The position adjusting mechanism f is for adjusting the reciprocating position of the forming tool c, and a screw shaft e extending in the moving direction of the forming tool c is screwed to a nut t fixed to a slide g.

A spline k is provided at the rear end of the screw shaft e, and the screw shaft e is fitted to the worm wheel 1 pivotally supported in the slide g by the spline k.

The worm wheel 1 is fitted with a worm m connected to a drive device (not shown), and the screw shaft e moves in the axial direction of the screw shaft e with the rotation of the worm wheel 1 to move the slide d. It contacts the rear surface and moves the forming tool c in the forward direction together with the slide d, or separates and retreats from the rear surface of the slide d.

Further, a counter balance cylinder o is connected to the slide d via a lever n, and the back surface of the slide d is always kept on the screw shaft of the position adjusting mechanism f by an accumulator p connected to the counter balance cylinder o. eContacts the front end.

Therefore, when the forging machine a is in operation, the reciprocating mechanism h slides the forming tool c by the counterbalance cylinder o overcoming the rolling-down force for bringing the slide d into contact with the screw shaft e of the position adjusting mechanism f. d, and the counter balance cylinder o is reciprocating mechanism h
When the position adjusting mechanism f moves backward, the slide d and the forming tool c are moved while the back surface of the slide d is in contact with the screw shaft e of the position adjusting mechanism f.
And follow it.

FIG. 29 shows another conventional forging machine q.
The portions denoted by the same reference numerals as those in FIG. 28 represent the same components.

The forging machine q slidably inserts a slide d in which a forming tool c is fixed at a front end thereof and a reciprocating mechanism h on a frame r of a required shape, and a link of the reciprocating mechanism h is provided at a rear end of the slide d. i, and a position adjusting mechanism f having a screw shaft e capable of moving forward and backward is inserted into the frame r so that the screw shaft e can contact the back surface of the slide s of the reciprocating mechanism h.

A counter balance cylinder o is connected to the slide d via a lever n as in the case of the forging machine a. The back surface of the slide s is always kept by an accumulator p connected to the counter balance cylinder o.
It is in contact with the screw shaft e of the position adjusting mechanism f.

[Problems to be Solved by the Invention] However, in the forging machine a shown in FIG. 28, when the forging machine a is operated, the position adjusting mechanism f is kept in contact with the slide d on which the forming tool c is fixed. With frame b
Therefore, the impact force from the forming tool c is directly transmitted to the position adjusting mechanism f, and the position adjusting mechanism f may be broken.

Further, a drive shaft (not shown) connected to the worm m of the position adjusting mechanism f needs to be displaceable with the reciprocating motion of the position adjusting mechanism f. It is easy to cause outbreak.

Further, since the position adjusting mechanism f and the reciprocating mechanism h are arranged in series, the size of the apparatus in the axial direction increases.

Similarly, in the forging machine q shown in FIG. 29, the impact force from the forming tool c is transmitted to the position adjusting mechanism f via the reciprocating mechanism h,
There is a possibility that a failure occurs in the position adjusting mechanism f.

Further, a drive shaft (not shown) connected to the eccentric shaft j of the reciprocating mechanism h needs to be capable of being displaced when the reciprocating mechanism h moves. It is easy to cause outbreak.

Further, the position adjusting mechanism f and the reciprocating mechanism h are arranged in series similarly to the forging machine a, so that the size of the apparatus in the axial direction increases.

Means for Solving the Problems According to a first aspect of the present invention, there is provided a slide to which a forming tool can be fixed at a front end portion, and a slide portion extending in a direction intersecting the slide and an intermediate portion extending in an axial direction of the slide. A swing link connected to an intermediate portion, a rotatable eccentric shaft is connected to one end of the swing link via the link, and an actuator capable of moving forward and backward is connected to the other end of the swing link. doing.

According to a second aspect of the present invention, there is provided a slide capable of fixing a forming tool to a tip end thereof, and a swing link extending in a direction intersecting the slide and having an intermediate portion connected to an axial intermediate portion of the slide. A swinging slide externally fitted to a rotatable eccentric shaft is swingably abutted on one end of the swing link, and the retractable actuator is connected to the other end of the swing link. ing.

According to a third aspect of the present invention, in the forging machine according to the first aspect, the axis of a slide capable of fixing a forming tool to a tip is located in the same plane, and the tip of each slide is located in the plane. Are arranged so as to face one point.

According to a fourth aspect of the present invention, in the forging machine according to the second aspect, the axis of the slide capable of fixing the forming tool to the tip is located in the same plane, and the tip of each slide is located in the plane. Are arranged so as to face one point.

[Operation] By moving the actuator forward and backward, the position at which the slide reciprocates via the swing link is adjusted, and by rotating the eccentric shaft, the slide is reciprocated via the swing link to forge the material. I do.

[Example] Hereinafter, an example of the present invention will be described with reference to the drawings.

In FIGS. 1 to 27, the parts denoted by the same reference numerals represent the same items.

FIG. 1 to FIG. 10 show an embodiment of the first invention of the present invention, in which a slide 3 capable of fixing a forming tool 2 at a tip end thereof is slidably inserted into a frame 1 having a required shape. An intermediate portion of the swing link 4 is connected to the slide 3 via a pin 5.

An eccentric shaft 6 is rotatably supported in the frame 1, and one end of a link 7 is fitted to an eccentric portion of the eccentric shaft 6, and the other end is connected to one end of the swing link 4 via a pin 8. connect.

A gear 9 is fixed to the lower end of the eccentric shaft 6, and the gear 9 is fitted with a gear of a driving device (not shown).

The link 10 is connected via a pin 11 to the other end of the swing link 4 that is not connected to the link 7, and the link 10 and the connecting member 12 are connected via a pin 13.

The connecting member 12 is provided in the frame 1 so as to be movable in parallel with the slide 3.

A worm wheel 14 fitted to a worm (not shown) is supported at the rear end of the frame 1 so as to be rotatable in a vertical plane perpendicular to the axis of the slide 3, and an axial center of the worm wheel 14. A screw shaft 15 extending in parallel with the slide 3 is screwed into the female screw portion provided in the above, and the front end of the screw shaft 15 is fixed to the back surface of the connecting member 12 to form an actuator 83.

Further, at the rear end of the frame 1, a counterbalance cylinder 17 having a piston rod 16 capable of retreating in a direction parallel to the slide 3 is provided.
It is disposed so as to face rearward, and an extruding member 18 is fixed to the front end of the piston rod 16 to the rear end surface of the slide 3 to form a forging machine 25.

A pipe 22 capable of sending pressure oil from a hydraulic pump 21 is connected to a piston-side liquid quality 19 of the counterbalance cylinder 17 via a check valve 20, and the piston-side liquid chamber 19 of the pipe 22 is connected.
Between the valve and the check valve 20, an accumulator 23 and a relief valve 24 are connected.

According to the above-described configuration, when forging the material, after the forming tool 2 is fixed to the tip of the slide 3, the worm wheel 14 is rotated by a driving device (not shown), and the screw shaft 15 is moved forward. Alternatively, the link 10 is moved backward through the connecting member 12 to adjust the position of the pin 5 supporting the slide 3.

When the link 10 moves, the swing link 4 connected to the link 10 via the pin 11 rotates about the pin 8, so that the slide 3 connected to the swing link 4 via the pin 5 is formed. It moves forward or backward with the tool 2.

Next, the eccentric shaft 6 is rotated by a driving device (not shown), and the link 7 is continuously reciprocated.

When the link 7 reciprocates continuously, the swing link 4 connected to the link 7 via the pin 8 swings about the pin 11, and the slide 3 reciprocates continuously with the forming tool 2, Forging the material.

At this time, the slide 3 is pressed in the retreating direction by the pressurized oil accumulated in the pressing member 18 and the accumulator 23 to absorb the backlash of each connecting portion and to prevent noise from each movable portion.

In the present invention, the eccentric shaft 6 for reciprocating the link 7
Since the screw shaft 15 for moving the position of the oscillating link 4 and the screw shaft 15 are both supported by the frame 1, the driving force transmission mechanism has a simple and highly efficient transmission structure.
Further, compared to the conventional device, the vibration and impact received by the driving force transmission mechanism during operation of the device are reduced, so that the reliability of the device can be increased.

Also, a link and eccentric shaft 6 for reciprocating the slide 3 and a link 10 for adjusting the position of the slide 3
Since the screw shaft 15 and the screw shaft 15 are not arranged in series, the size of the forging machine 23 in the direction of the three axes of the slide can be reduced.

Further, since the axis of the eccentric shaft 6 and the axis of the worm wheel 14 do not move even when the slide 3 is reciprocated or the position of the slide 3 is adjusted, the structure of the driving force transmission system is simplified and maintenance can be easily performed.

FIG. 11 shows another example of the counterbalance cylinder according to one embodiment of the first invention, in which a cavity 26 having a required shape is formed in the rear end of the slide 3 and a tip end is formed in the cavity 26. Insert a piston rod 28 with a piston 27 into
A counterbalance cylinder 29 is provided at the rear end of the slide 3.
Is formed.

The piston rod 28 is fixed to the frame 1 via an arm 30 and a bolt 31, and a counter balance cylinder
The same hydraulic circuit as described above is connected to the piston rod-side liquid chamber 32 of the 29 via a liquid passage 33 formed in the piston rod 28. According to the configuration described above, the counter balance cylinder 29 can also exert the same operation as the counter balance cylinder 17.

FIG. 12 shows another example of the position adjusting mechanism of the first embodiment of the present invention, in which a slide 35 is attached to a support member 34 fixed to the rear end of the frame 20 in parallel with the slide 3 shown in FIG. And a liquid chamber 36 is formed between the rear end of the slide 35 and the support member 34 so as to form a liquid chamber 36, and a screw shaft 37 is screwed into a female thread provided at the axial center of the slide 35. And the front end of the screw shaft 37 is connected to the connecting member 12.
Is rotatably fitted to the rear end.

Spline 38 near the rear end of screw shaft 37
Is provided, and the screw shaft 37 is a spline
The worm wheel 39 is rotatably supported on the rear end of the support member 34 by 38, and is fitted to the worm wheel 39.
Is connected via a worm 40 to a drive (not shown).

A hydraulic circuit similar to that shown in FIG. 10 is connected to the liquid chamber 36.

The pressure of this hydraulic circuit is set so that: That is, when a reaction force greater than the capacity of the forging machine acts, the oil in the liquid chamber 36 is pushed out to the accumulator 23, and the piston 35 moves in a direction to absorb the reaction force, and a load greater than the capacity acts on the forging machine. The pressure is set so that troubles such as breakage do not occur.

According to the above-described configuration, the same operation as that of the position adjusting mechanism according to the first embodiment of the present invention can be achieved, and when the slide 3 receives a reaction force higher than the capability of the forging machine, this is reduced. It is possible to prevent the forging machine from being damaged while keeping the capacity below the capacity. This type of overload protector also has the great advantage that it returns to its original state immediately after the load is removed, so that the forging operation can be continued without damaging the material. is there.

FIG. 13 shows another example of the position adjusting mechanism according to the embodiment of the first invention, in which the other end of a columnar body 41 having one end formed in a hemispherical shape is fixed to the rear end of the connecting member 12. Then, the hemispherical end of the columnar body 41 is inserted into a ram 42 formed on a spherical seat whose inner surface can include the hemispherical end, and the ram 42 slides on a cylinder 43 fixed to the rear end of the frame 1. It is inserted so that it can slide in parallel.

Further, a servo valve 44 is fixed to the rear end of the support member, and a liquid chamber 45 formed between the cylinder 43 and the ram 42 communicates with a pressure oil source (not shown) via the servo valve 44. doing.

According to the above-described configuration, the reciprocating position of the slide 3 can be adjusted by the hydraulic pressure, and the pressure oil in the liquid chamber 45 is transmitted from the slide 3 via the swing arm 4 to the capacity of the forging machine. Can act as an overload protector against the reaction force of

FIG. 14 shows another example of the position adjusting mechanism according to one embodiment of the first invention, in which one end has a shape capable of fitting with the pin 11 and the other end has the same hemispherical surface as the columnar body 41. The pin 11 and the ram 42 are connected via a connecting member 46 formed at the end.

According to the above configuration, the same operation as the position adjusting mechanism shown in FIG. 13 can be achieved.

In the case of the position adjusting mechanism shown in FIGS. 13 and 14, forging can be performed by hydraulic pressure by stopping the rotation of the eccentric shaft and controlling the cylinder 43 by hydraulic pressure.

FIG. 15 shows another example of the reciprocating differential mechanism using the eccentric shaft according to one embodiment of the first invention, and the eccentric shaft 6 shown in FIG.
A cylinder 47 is provided in place of the rick 7, a ram 48 is inserted into the cylinder 47, a hemispherical end of a connecting member 49 is inserted into the ram 48, and the connecting member 49 is connected to the swing link 4 via the pin 11. It is a concatenation.

 In the drawing, reference numeral 82 denotes a liquid chamber.

Further, a servo valve 44 is provided in the cylinder 47, and the ram 48 is reciprocated by receiving a supply of pressure oil from a hydraulic source (not shown).

In this case, a device for detecting the position of the slide 3, for example, a position detecting device using a magnescale (not shown)
Thus, the position can be detected and reciprocated within a certain set range.

By combining such a reciprocating mechanism and a stroke position adjusting mechanism shown in FIG. 12, for example, the stroke of the liquid chamber 82 is reduced, the adverse effect of oil compressibility is reduced, and the reciprocating operation stroke is increased from a small to a large. It is possible to make a forging machine that can be adjusted up to.

FIG. 16 to FIG. 18 show another embodiment of the first invention of the present invention, in which a rectangular parallelepiped slide block 50 having pins 11 is connected to the swing link 4 via pins 11; A guide block 52 having a support portion 51 capable of fitting with the slide block 50 is fitted to the slide block 50 so that the slide block 50 can slide in a direction perpendicular to the axis of the slide 3.

The support part 51 of the guide block 52 is the slide block
The guide 53, which is formed in a shape capable of contacting the front and rear end surfaces of the slide block 50 in the moving direction of the slide 3 and the side surface of the slide block 50 on the pin 11 side, is formed in parallel with the slide 3 axis at the front end of the guide block. Is slidably inserted into a hole 54 formed in the front end of the slide member in parallel with the three axes of the slide.

At the rear end of the frame 1, a screw shaft 37 of a position adjusting mechanism formed in the same manner as in FIG. 12 is disposed so as to be able to abut on the back surface of the guide block 52.

A protrusion 55 having a required shape is formed on the side surface of the slide block 50 opposite to the pin 11, and a guide plate 56 extending in the three axial directions of the slide is fixed to the protrusion 55.

A guide rail 58 extending in the three axial directions of the slide fixed to the frame 1 is fitted into a concave portion 57 extending in the three axial directions of the slide formed by the projection 55 and the guide plate 56.

Further, a counterbalance cylinder 60 having a piston rod 59 movable in the same direction as the slide 3 at the rear end of the frame 1 is provided, and the piston rod 59 is connected to an arm 61 fixed to the rear end of the slide 3.

 In the drawing, 62 indicates a liquid chamber.

According to the above-described configuration, when it is desired to advance the reciprocating position of the slide 21, the drive unit (not shown) drives the shaft through the worm 40 and the worm wheel 39.
The shaft 37 is rotated in the direction in which the shaft 37 advances, and the shaft
The tip of 37 is brought into contact with the rear end of the guide block 52, and the guide block 52 is pushed forward.

When the guide block 52 is pushed forward, the slide block 50 swings inside the support portion 51 of the guide block 52.
While moving in the axial direction of the slide 3, the rocking link 4 moves in the axial direction of the slide 3 and rotates in the direction in which the slide 3 moves forward.

When it is desired to retreat the position at which the slide 3 reciprocates, the drive unit (not shown) drives the shaft 37.
Is rotated in a direction in which the shaft 37 moves backward.

At this time, if pressure oil is previously supplied to the liquid chamber 62 from a pressure oil source (not shown), the counter balance cylinder 60 retreats the slide 3 and rotates the swing link 4 about the pin 8, With the rotation of the swing link 4, the slide block 50 slides in the support section 51 of the guide block 52 in the axial direction of the swing link 4 and retreats in the slide 3 axial direction together with the shaft 37.

FIG. 19 shows an embodiment of the second invention of the present invention, in which a swing slide 63 in which the eccentric portion of the eccentric shaft 6 is fitted into the back surface of the end of the swing link 4 instead of the pin 8 and the link 7. Are slidably contacted with each other.

According to the above configuration, the swing slide 63 is always in contact with the rear surface of the end of the swing link 4 by the counter balance cylinder as shown in FIG. 18, and the slide 3 swings with the rotation of the eccentric shaft 6. The slide 3 is reciprocated via the swing link 4 while sliding on the back of the end of the moving link 4.

20 to 23 show an embodiment of the third invention of the present invention. This embodiment is a four-sided forging machine combining four forging machines 25 shown in one embodiment of the first invention. The swing link 4 of each forging machine 25 can swing on the same plane, and the axis of each slide 3 is oriented in a different direction by 90 ° in the same vertical plane. doing.

Each eccentric shaft 10 is connected to an output shaft 70 of a speed reducer 69 via gears 29, 65, 66, 67 and a coupling 68.
The motor 73 is connected to one end of the input shaft 71 via a coupling 72.
The flywheel 74 is fixed to the other end, and the output shaft 70 and the input shaft 71 are fixed to the output shaft 70 and the input shaft 71 via gears 75 and 76 having different numbers of teeth, respectively. Are linked.

The input shaft 71 of the adjacent reducer 69 is a bevel gear 77
And a connection shaft 78 for synchronous rotation.

According to the above configuration, the rotational force of the motor 73 is transmitted to the eccentric shaft 6 via the speed reducer 69 and the gears 67, 66, 65, 9 and the slide 3 reciprocates to forge the material.

At this time, since the input shaft 71 of each speed reducer 69 is connected via the bevel gear 77 and the connecting shaft 78 for synchronous rotation, the slide 3 reciprocates in the same synchronization.

FIGS. 24 to 26 show another embodiment of the third invention of the present invention. A four-sided forging machine is provided by combining four forging machines 25 shown in one embodiment of the first invention. Is formed,
In this embodiment, the swing link 4 of each forging machine 25 can swing in a plane perpendicular to the same vertical plane, and the axis of each slide 3 differs by 90 ° in the same vertical plane. It is arranged to face the direction.

A bevel gear 77 is fixed to a shaft end of each eccentric shaft 6, and the bevel gear 77 is fitted with a gear 79 fixed to a shaft 78 rotatably supported by the frame 1.

The shaft 78 extends in the same direction as each of the eccentric shafts 6, and a bevel gear 80 is fixed to an end thereof.

The bevel gear 80 is fitted with the bevel gear 80 of the adjacent forging machine 25, and one of the shafts 78 is connected via a coupling 81 to a reduction gear of a driving device (not shown).

According to the above-described configuration, the torque transmitted from the driving device (not shown) transmitted through the coupling 81 is applied to the bevel gear.
It is transmitted to the eccentric shaft 6 via 80, shaft 78, gear 79, and bevel gear 77, and the slide 32 reciprocates to forge the material.

In this embodiment, each slide 21 reciprocates in the same cycle as in the embodiment of the third invention.

FIG. 27 shows another embodiment of the third invention of the present invention, in which a polyhedral forging machine is formed by combining eight forging machines 25 shown in one embodiment of the first invention, In this embodiment, the swing link 4 of each forging machine 25 can swing in a plane perpendicular to the same vertical plane, and the axis of each slide 3 is different by 45 ° in the vertical plane. It is arranged to face.

In the present embodiment, since the swing links 4 of the forging machines 25 are arranged so as to be able to swing in planes orthogonal to the same vertical plane, the forging machines 25 do not interfere with each other, and are easily A multifaceted forging machine can be formed.

Further, of the present invention, a detailed description of an embodiment corresponding to the fourth invention will be omitted, but the forging machine shown in FIG. 19 is replaced with a forging machine shown in FIG. 20 to FIG. 23 or FIG. 24 to FIG. As shown,
Alternatively, by arranging as shown in FIG. 27,
The same operational effects as these can be obtained.

It should be noted that the forging machine of the present invention is not limited to the above-described embodiment, and it is needless to say that various changes can be made without departing from the gist of the present invention.

[Effects of the Invention] As described above, according to the forging machine of the present invention, various excellent effects as described below can be obtained.

1) Since the eccentric shaft for reciprocating the link and the screw shaft for moving the position of the oscillating link are both supported by the frame, the driving force transmission mechanism has a simple structure and high transmission efficiency. As compared with the conventional apparatus, the vibration and impact received by the driving force transmission mechanism during operation of the apparatus are reduced, so that the reliability of the apparatus can be increased.

2) Since the reciprocating mechanism and the position adjusting mechanism are not arranged in series, the size of the forging machine in the slide longitudinal direction can be reduced.

3) Since the axis of the shaft system that drives the reciprocating mechanism and the position adjusting mechanism does not move, no failure occurs in the driving force transmission system.
Maintenance inspection can be performed easily.

[Brief description of the drawings]

FIG. 1 is a plan view of an embodiment of the first invention of the present invention, FIG. 2 is a view taken along the line II-II of FIG. 1, and FIG.
III-III view, FIG. 4 is an IV-IV view of FIG. 3, FIG.
The figure is a view taken in the direction of arrows VV in FIG. 1, FIG. 6 is a view taken in the direction of arrows VI-VI in FIG. 5, FIG. 7 is a view taken in the direction of arrows VII-VII in FIG. 5, and FIG.
FIG. 9 is a view taken in the direction of arrows VIII-VIII, FIG. 9 is a view taken in the direction of arrows IX-IX in FIG. 8, FIG. 10 is a sectional view of the counterbalance cylinder, and FIG.
FIG. 12 is a cross-sectional view of another example of the counterbalance cylinder according to one embodiment of the first invention. FIG. 12 is a cross-sectional view of another example of the position adjusting mechanism of one embodiment of the first invention. FIG. 14 is a sectional view of another example of the position adjusting mechanism according to the embodiment of the first invention, and FIG.
Sectional view of another example of the position adjusting mechanism of one embodiment of the present invention, FIG.
FIG. 15 is a cross-sectional view of another example of the reciprocating mechanism of one embodiment of the first invention, FIG. 16 is a plan view of another embodiment of the first invention of the present invention, and FIG. XVII-XVII arrow view in FIG. 16, FIG.
FIG. 16 is a view taken along the line XVIII-XVIII in FIG. 16, FIG. 19 is a plan view of one embodiment of the second invention of the present invention, and FIG. 20 is one embodiment of the third invention of the present invention. Sectional view of the example, FIG. 21 is a cross-sectional view taken along the line XXI-XXI of FIG. 20, FIG. 22 is a cross-sectional view of the drive system of FIG.
FIG. 23 is a view taken along the line XXIII-XXIII of FIG. 22, FIG. 24 is a cross-sectional view of a four-sided forging machine according to another embodiment of the third invention of the present invention, and FIG. 25 is XXV of FIG. FIG. 26 is a cross-sectional view of the drive system of FIG. 24, FIG. 27 is a cross-sectional view of a polyhedral forging machine according to another embodiment of the third invention, FIG. FIG. 29 is a plan view of another example of the conventional forging machine, and FIG. 29 is a plan view of another example of the conventional forging machine. In the figure, 2 is a forming tool, 3 is a slide, 4 is a swing link,
6 is an eccentric shaft, 7 and 10 are links, 12 is a connecting member, 15 is a screw shaft, 25 is a forging machine, 28 is a piston rod, 37 is a screw shaft, 42 and 48 are rams, 50 is a slide block, and 52 is a guide. A block, 63 is a swing slide, 64 is a leaf spring, and 83 is an actuator.

Claims (4)

(57) [Claims] 1. A slide capable of fixing a forming tool to a tip end thereof, and a swing link extending in a direction intersecting the slide and having an intermediate portion connected to an axially intermediate portion of the slide. A forging machine, wherein a rotatable eccentric shaft is connected to one end of a moving link via a link, and an actuator capable of moving forward and backward is connected to the other end of the swing link. 2. A slide which can fix a forming tool to a tip end thereof, and a swing link extending in a direction intersecting the slide and having an intermediate portion connected to an axial intermediate portion of the slide. Forging, characterized in that a swinging slide externally fitted to a rotatable eccentric shaft is slidably abutted on one end of the moving link, and an actuator capable of moving forward and backward is connected to the other end of the swinging link. Machine. 3. The forging machine according to claim 1, wherein an axis of a slide on which a forming tool can be fixed at a tip portion is located in the same plane,
A forging machine, wherein a plurality of slides are arranged such that the tip of each slide faces one point in the plane. 4. A forging machine according to claim 2, wherein the axis of a slide on which a forming tool can be fixed at the tip is located in the same plane,
A forging machine, wherein a plurality of slides are arranged such that the tip of each slide faces one point in the plane.