KR100673799B1 - Structure of block die for a forging machine - Google Patents

Abstract

A die block structure for a forging machine, which relieves an impact according to the action of a hammer by installing buffing means between a second rotary plate and a fixed plate, is provided. A die block structure for a forging machine comprises: a first rotary plate on which a workpiece is placed; a second rotary plate(26) which is separably assembled onto the bottom of the first rotary plate by pins(24), and has a shaft(28) and a driven gear(30) formed on a lower end thereof; a fixed plate(32) which has a hole(34) so that the shaft can be inserted into the hole, and is installed below the second rotary plate; hydraulic motors(38) which are installed at both sides of the fixed plate respectively to rotate the first and second rotary plates forwardly and reversely by driving drive gears(42) engaged with the driven gear; and a base plate(52) separably assembled onto the bottom of the fixed plate by pins(50), wherein a plurality of inserting grooves into which the pins(50) are inserted are formed on a lower surface of the fixed plate and an upper surface of the base plate such that the inserting grooves are in communication with one another all over the lower surface of the fixed plate and the upper surface of the base plate, and the fixed plate is eccentric from the base plate.

Description

{Block of die for a forging machine}

Figure 1 schematically shows the overall structure of the forging machine according to the present invention.

Figure 2 is a three-dimensional exploded view showing the detailed configuration of the die block constituting the main configuration of the present invention.

3 is a view showing the die block of the present invention cut away.

Figure 4 is a view showing three-dimensionally the bottom surface of the base plate of the die block of the present invention.

5 is a view showing a state in which the first rotating plate of the die block is placed on the second rotating plate for each size.

Figure 6 is a view showing a state in which the position of the first and second rotating plate and the fixed plate placed on the base plate of the die block is adjusted.

          <Description of Symbols for Main Parts of Drawings>

10: RAM 20: Dieblock

22: first rotating plate 24: pin

26: 2nd rotating plate 30: driven gear

32: fixed plate 38: hydraulic motor

40: hydraulic hose 42: drive gear

44: buffer member 50: pin

52: base plate

The present invention relates to a forging machine, and more particularly, to a die block structure of a forging machine which improves the structure of a die block in which a workpiece heated to a constant temperature is placed.

As is well known, forging refers to a method of metal processing in which a material is formed into a desired shape by applying a compressive load by a mechanical method. In the forging method, a material is placed between flat tools, and is rotated or rotated properly. It is divided into free forging to make the product of the desired shape, and mold forging to make the product of the desired shape by sandwiching the material between the molds in a certain shape.

The forging machine used for free forging corresponds to the former, which is composed of a material heated to a certain temperature, that is, a die block on which a workpiece is placed, and a ram located on the die block and equipped with a tool such as a hammer. The hammer is hammered on the die block by the up and down reciprocating motion to increase the rigidity of the workpiece and to make the structure uniform, and then to form a product having a certain shape.

On the other hand, the die block used in the conventional forging machine is composed of a base plate, and a rotating plate installed on the base plate with a bearing interposed therebetween and rotates the workpiece placed while rotating with the power of a driving motor. In use, it causes many problems such as:

First, when the workpiece used for forging is placed on the rotating plate in the state of being primarily heated at a high temperature (approximately 1200 ° C.), in the process of use, the heat of the workpiece is conducted to the rotating plate to break the bearing installed between the base plate and the rotating plate Occurred frequently, which hindered the rotational operation of the rotating plate, which lowered the workability as well as causing a lot of trouble in the work due to the replacement of the broken bearing.

In addition, there is no separate buffer means is provided between the rotating plate and the base plate, so that the rotating shaft installed between the base plate and the rotating plate in the process of hammering the workpiece does not withstand the impact and breakage.

In addition, the conventional rotating plate of the die block is impossible to change the position in the assembled state on the base plate, and thus there was a problem that the position of the workpiece during forging molding can not be changed more effectively.

Therefore, the present invention for solving the above problems is to provide a die block structure of the forging machine to mitigate the impact of the hammer operation by installing a buffer means between the second rotating plate and the fixed plate.

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It is still another object of the present invention to provide a die block structure of a forging machine which allows the positions of the fixed plate and the first and second rotary plates sequentially placed on the base plate to be freely changed on the base plate.

Still another object of the present invention is to provide a die block structure of a forging machine, which is configured to detach the first and second rotary plates so that the first rotary plate can be selectively combined and used according to the size of the workpiece.

Still another object of the present invention is to provide a die block structure of a forging machine that can safely protect a hydraulic hose connected to a hydraulic motor by forming a hose insertion path in a base plate.

The present invention for achieving the above object is in the die block structure of the forging machine, the first rotating plate on which the workpiece is placed, and is separably assembled by a pin under the first rotating plate, the lower end is provided with a shaft and a driven gear The first and second rotating plates may be driven by driving a second rotating plate, a fixed plate installed under the second rotating plate and having holes for fitting the shaft, and driving gears respectively installed on both sides of the fixed plate and engaged with the driven gear. It proposes a die block structure of a forging machine comprising a hydraulic motor for forward and reverse rotation and a base plate detachably assembled by a pin under the fixing plate.

At least one buffer member is preferably provided between the second rotating plate and the fixed plate to alleviate the impact generated in the process of tapping the workpiece.

The lower surface of the fixing plate and the upper surface of the base plate to form a fitting groove for the pin is fitted, the fitting groove is preferably configured to be formed a plurality over the entire lower surface of the fixing plate and the base plate.

It is preferable to form fastening holes for fitting jaws in the circumferential surfaces of the first and second rotating plates and the fixing plate.

It is preferable to form a hose insertion passage for fitting the hydraulic hose connected to the hydraulic motor on the outer periphery of the base plate.

Hereinafter, a detailed description of a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

Figure 1 shows the overall structure of the forging machine according to the present invention.

As shown, the forging machine 100 is equipped with a hammer or a tool, and the like, the ram 10 for reciprocating up and down, and the workpiece 1 installed under the ram 10 and heated to a predetermined temperature is settled. The die forging machine 100 having such a configuration, the forging machine 100 having such a configuration by knocking the workpiece (1) hammered in the die block 20 by the up and down reciprocating movement of the ram (10) After increasing the rigidity and uniformity of the structure, it is molded into a product having a certain shape.

2 and 3 are views showing the detailed configuration of the die block 20 constituting the main configuration of the present invention.

As shown in the drawing, the die block 20 includes the first and second rotating plates 22 and 26, the fixed plate 32, and the base plate 52.

The first and second rotary plates 22 and 26 are means for rotating the workpiece 1 forward and reverse by the power of the hydraulic motor 38 to be described later.

First, the first rotating plate 22 is formed in a circular shape, the upper surface is the workpiece 1 is subjected to the high temperature treatment.

The second rotating plate 26 is formed in the same shape as the first rotating plate 22 and attached to the bottom of the first rotating plate 22, but the lower surface of the first rotating plate 22 and the second rotating plate 26 are formed. A plurality of fitting grooves (22a, 26a) are formed on the upper surface of each other, and the pins 24 are inserted into the fitting grooves (22a, 26a) so that the first and second rotating plates (22, 26) can be separated from each other. It is preferable to assemble, which is to use the first rotary plate 22 selectively by size on the second rotary plate 26 according to the size of the workpiece (1) as shown in Figure 5 attached. . At this time, the first rotating plate 22 is preferably formed in the same position without changing the position of the fitting groove 22a even if the size is made different.

On the other hand, the lower surface of the second rotating plate 26 is attached to the shaft 28 and the ring-shaped driven gear 30 around the shaft 28 in the center, respectively.

The fixing plate 32 is a plate installed below the second rotating plate 26, and a hole 34 into which the shaft 28 provided in the second rotating plate 26 is fitted in the center of the fixing plate 32. The through-holes are formed and hydraulic motors 38, which are driving means for rotating the first and second rotating plates 22 and 26, are provided on both side surfaces thereof. The drive gear 42 is coupled to the shaft 38a of the hydraulic motor 38, and the drive gear 42 is engaged with the driven gear 30 attached to the lower surface of the second rotating plate 26. Therefore, the driven gear 30 receives the power of the drive gear 42 rotating by the power of the hydraulic motor 38 and the second rotating plate 26 and the first rotating plate placed on the upper surface of the second rotating plate 26. (22) is rotated forward and reverse.

On the other hand, between the fixing plate 32 and the second rotating plate 26, a plurality of buffer members 44 are installed while maintaining a constant interval, these buffer members 44 are the ram of the forging machine 100 described above The hammer mounted on the (10) to mitigate the impact generated in the process of tapping the workpiece (1) to prevent damage to the shaft 28 and other accessories located between the fixed plate 32 and the second rotating plate 26 .

On the other hand, the upper surface of the shock absorbing member 44 is provided with a support plate 46 for supporting the shock absorbing member 44, the support plate 46 is located below the driven gear 30 described above, the driven gear It is preferable to insert the bearing 48 around the upper surface of the support plate 46 in contact with the 30 so as not to disturb the rotation of the driven gear 30. In addition, the fixing plate 32 is preferably formed with an insertion groove 36 for the buffer member 44 is fitted.

On the other hand, a plurality of fastening grooves 22b, 26b, and 32b are formed on the circumferential surfaces of the fixed plate 32 and the first and second rotating plates 22 and 26, respectively, at predetermined intervals, and the fastening grooves 22b and 26b. To the first rotation plate 22 or the first and second rotation plates 22 and 26 or the first and second rotation plates 22 and 26 and the fixed plate 32 so that the jaws 70 are selectively fitted to the first and second rotation plates 32b. When all have to be moved, the rope or other fastening means can be hooked to facilitate the movement.

The base plate 52 corresponds to the bottom plate of the die block 20, and the base plate 52 is detachably assembled to the pin 50 under the fixing plate 32. 4, a hose insertion passage 54 is formed at the outer periphery of the base plate 52, and the hose insertion passage 54 supplies hydraulic pressure to the hydraulic motor 38 described above. The hydraulic hose 40 is inserted to prevent the hydraulic hose 40 from being damaged due to the heat of the workpiece 1. That is, when the hydraulic hose 40 is left exposed to the outside, the hydraulic hose 40 may come into contact with the workpiece 1 during the transfer or molding of the workpiece 1, and the workpiece ( 1) the hydraulic hose 40 may be damaged by the heat of the bar. In the present invention, the hydraulic hose 40 is not exposed through the hose insertion passage 54 formed in the base plate 52 to the base plate 52. By constructing internally, damage to the hydraulic hose 40 due to heat can be prevented in advance. At this time, the hydraulic hose 40 is inserted into the hose insertion passage 54 is preferably fixed by a separate bracket 56 so as not to sag in the downward direction during use.

On the other hand, the lower surface of the fixing plate 32 and the upper surface of the base plate 52 to form fitting grooves (32a, 52a) for fitting the pin 50, respectively, the fitting grooves (32a, 52a) are fixed plate ( 32 is preferably configured to form a plurality (four in the present invention) in communication with each other over the entire upper surface of the base plate 52, the fixing plate as shown in Figure 6 By allowing (32) to be eccentrically installed on the base plate (52) to the center or the outside, depending on the molding part of the workpiece (for example, when the outer portion of the workpiece must be hammered with a hammer) This is to change the position of 1) and to perform the molding work.

Hereinafter, the action of the die block of the forging machine having the configuration as described above is as described below.

First, when rotating the workpiece (1) placed on the first rotating plate (22) by operating the hydraulic motor 38 mounted on both sides of the fixed plate 32 is coupled to the shaft 38a of the hydraulic motor 38 The driven gear 30, which is engaged with the driving gear 42, rotates and rotates the second rotary plate 26 about the shaft 28, and thus the pin 24 on the second rotary plate 26. By rotating the first rotating plate 22 assembled in the) to rotate the workpiece (1).

In addition, the impact generated in the process of tapping the rotating workpiece 1 with the hammer is absorbed by the shock absorbing member 44 provided between the second rotating plate 26 and the fixed plate 32, thereby fixing the fixed plate 32 and the second rotating plate 26. ) To prevent breakage of the shaft 28 and other accessories.

On the other hand, when it is necessary to change the position of the workpiece (1) in order to mold the outer portion of the workpiece (1), as shown in the accompanying Figure 6, the fixed plate 32 is separated from the base plate 52, and then the fixed plate When the pin 50 is fastened to the fitting grooves 32a and 52a formed at the outer side of the base plate 52 and the base plate 52, the fixing plate 32 is eccentrically installed in the base plate 52. The first and second rotating plates 22 and 26 placed on the fixed plate 32 may also be eccentrically installed to change the position of the workpiece 1 placed on the first rotating plate 22.

As described above, the present invention achieves many effects as follows.

The present invention has the effect of preventing the damage of the shaft or other accessories provided between the second rotating plate and the fixed plate by mitigating the impact generated during the hammer operation through the buffer means provided between the second rotating plate and the fixed plate.

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Thirdly, the installation position of the fixed plate installed on the base plate can be installed eccentrically to the center or the outside, thereby having the effect of changing the position of the workpiece according to the molding part.

Fourth, the first and second rotary plates can be selectively combined with each other according to the size of the workpiece through the detachable structure of the first and second rotary plates.

Fifth, the hose insertion flow path formed in the base plate has the effect of more safely protecting the hydraulic hose connected to the hydraulic motor.

Claims (5)

In the die block structure of the forging machine, A first rotating plate 22 on which the workpiece 1 is placed; A second rotary plate 26 assembled to be detachably assembled with a pin 24 under the first rotary plate 22 and having a shaft 28 and a driven gear 30 at a lower end thereof; A fixing plate 32 having a hole 34 into which the shaft 28 is fitted and installed below the second rotating plate 26; Hydraulic motors 38 installed on both sides of the fixed plate 32 to drive the drive gear 42 engaged with the driven gear 30 to rotate the first and second rotating plates 22 and 26 forward and reverse, ; A base plate 52 detachably assembled to the pin 50 under the fixing plate 32; The lower surface of the fixing plate 32 and the upper surface of the base plate 52 to form fitting grooves (33a, 52a) for the pin 50 is fitted, the fitting grooves (32a, 52a) of the fixing plate 32 Die block structure of the forging machine, characterized in that the fixing plate 32 can be eccentrically installed in the base plate 52 by forming a plurality of in the state connected to each other over the entire lower surface and the upper surface of the base plate 52 . The method of claim 1, Die block structure of the forging machine, characterized in that at least one buffer member 44 is provided between the second rotating plate 26 and the fixed plate 32 to mitigate the impact generated in the process of tapping the workpiece (1). delete The method according to claim 1 or 2, Dies of the forging machine, characterized in that the fastening grooves 22b, 26b and 32b for selectively inserting jaws 70 are formed on the circumferential surfaces of the first and second rotating plates 22 and 26 and the fixing plate 32, respectively. Block structure. The method according to claim 1 or 2, Die block structure of the forging machine, characterized in that the hose insertion passage 54 for fitting the hydraulic hose 40 is connected to the hydraulic motor 38 is formed on the outer periphery of the base plate (52).

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