KR100861413B1 - Torque rod forging apparatus and torque rod for rheocasting - Google Patents

Abstract

A torque rod forging apparatus for semi-solid casting and a torque rod manufactured by the same are provided to support wheels and a vehicle body and control tension, compression, and torsion between the wheels by installing three body support bosses having three vertical surfaces respectively. A torque rod forging apparatus for semi-solid casting comprises a main body, a lower mold, an upper mold, and a torque rod(80) having a drawing unit. The torque rod forged by a torque rod forging apparatus for semi-solid casting includes a wheel support boss(81), a first body support boss(82), a second body support boss(83), a first rod, and a second rod. The wheel support boss has an inner center with a first steel bush hole, and an outer periphery with a first weight reducing groove. The first body support boss has an inner center with a second steel bush hole, and an outer periphery with a second weight reducing groove. The second body support boss has an inner center with a third steel bush hole, and an outer periphery with a third weight reducing groove. The first rod has two ends which are integrated with the wheel support boss and the first body support boss, and two surfaces with a fourth weight reducing groove. The second rod has two ends which are integrated with the wheel support boss and the second body support boss, and two surfaces with a fifth weight reducing groove. The first rod has 53 to 63° with regard to the second rod. First, second, and third vertical surfaces(81c,82c,83c) are formed at outer ends of the wheel support boss, the first body support boss, and the second body support boss.

Description

Torque rod forging apparatus and torque rod for rheocasting

1 to 3 is a schematic front view, side view, top view showing a torque rod forging device for reaction solidification of the present invention

Figure 4 is a schematic cross-sectional view showing a state in which the molten metal is injected into the lower mold

5 is a schematic cross-sectional view showing a state in which the molten metal in the lower mold is forged while the upper mold and the lower mold are pressed.

6 is a schematic cross-sectional view showing a state in which the upper mold is raised

Figure 7 is a schematic cross-sectional view showing a state in which the forged torque rod is taken out from the lower mold

Figure 8 is a schematic cross-sectional view showing a state in which the extracted torque rod is loaded on the molten metal transport trolley

9 is a schematic plan view showing an upper portion of a lower mold;

Figure 10 is a schematic bottom view showing the bottom of the upper mold

11 and 12 is a schematic perspective view showing the upper mold heating means and a cross-sectional view of its use state

Figure 13 is a schematic side view showing the molten metal guide means

14A to 14C are schematic front views, side views, and plan views showing the molten metal transferring means;

15 is a perspective view showing a torque rod forged by the torque rod forging device of the present invention

16 is a plan view showing a state in which steel bushes are mounted in holes to install a torque rod in a vehicle;

17 is a perspective view showing another embodiment of the torque rod

* Description of the symbols for the main parts of the drawings *

1: main body 2: main cylinder

10: lower mold portion 11: lower base

12: lower fixing plate 13: fixed shaft

14: lower mold 14a: coupling hole

14b, 24a: A forging space 14c, 24b: A forging protrusion

14d, 24c: Vant hole 20: Upper mold part

21: upper base 22: upper fixing plate

23: support shaft 24: upper mold

30: ejection means 31: lower lifting cylinder

32: ejection plate 33: ejection pin

40: upper mold heating means 41: burner head

42: fuel ignition 43: fuel supply hose

44: insulation furnace 45: riser tube

46: riser tube cylinder 50: molten metal guide means

51: drive motor 52: support shaft

53: rotation axis 54: angle adjustment bracket

54a: hinge hole 54b: angle adjustment hole

55: hinge pin 56: angle adjustment bolt

57: injection tube 60: molten metal transfer means

61: molten iron transfer guide rail 62: molten iron transfer truck

63: Balance feed motor 64: Vertical guide

65: ladle bar 66: ladle bar lifting cylinder

67: ladle 68: ladle rotation motor

69: hinge axis 70: product transfer means

71: product transfer rail 72: product transfer truck

73: product holder transfer rail 74: product holder

75: tank 80: torque rod

81: wheel support boss 81a: first steel bushing hole

81b: first weight reducing groove 81c: first vertical surface

82: first body support boss 82a: second steel bush hole

82b: second weight reducing groove 82c: second vertical surface

83: second body support boss 83a: third steel bush hole

83b: third weight reducing groove 83c: third vertical surface

84: first rod 84a: fourth weight reduction groove

85: second rod 85a: fifth weight reduction groove

86: steel bush

The present invention relates to a torque rod forging apparatus and a torque rod for reaction solidification, the gas in the molten metal is smoothly discharged to the outside during forging, the entire upper mold maintains a uniform temperature before the forging operation, the wheel and the body The present invention relates to a torque rod forging device and a torque rod for forming a reaction tank, which are three-point supported to properly hold various movements such as tension, compression, and torsion between front and rear wheels.

Torque rod (torque rod) is connected to the vehicle wheel and the vehicle body is a part of the suspension device to improve the stability of the vehicle by holding the tension, compression, torsional movement between the front and rear wheels generated during the driving of the vehicle.

In the case of heavy trucks, it is very important to secure the stability of the vehicle because it is loaded with heavy loads and the torque rod plays an important role in positioning of each wheel.

Currently, torque rods made of steel are used, and in order to improve fuel efficiency, reduce exhaust gas emissions, and reduce shaft weight, there is a strong demand for lightweighting. The weight reduction technology is essential for satisfying the stricter exhaust regulations and reducing fuel economy. The influence of weight on fuel economy is dominant, and in the case of chassis parts, in addition to the weight reduction effect, it has additional effects such as steering stability and riding comfort due to weight reduction. You can get it.

Therefore, there is an increasing demand for development of lightweight aluminum torque rods for improving fuel economy, reducing axial weight, improving ride comfort, and reducing exhaust gas emissions.

The torque rod for a vehicle is combined with load, moment, tension, and compression at the same time, making it impossible to manufacture by the general casting method, and securing cost competitiveness due to the increase of processing cost and the impossibility of material recycling when manufacturing parts by hot forging. There will be no.

In order to solve this problem, the present applicant has developed a machine part forging apparatus and a control method (patent registration No. 10-0598837) for reaction solidification. This includes a main body in which the main cylinder is installed, a lower mold installed in the lower part of the main body and pressurized and forged a lower part of the torque rod, and an upper mold connected to the main cylinder and lifted by the main mold to press and forge the upper part of the torque rod. It is provided on the lower side of the lower mold is provided with a take-out means for taking out the product in the lower mold to the upper side. This torque rod forging device forges a straight torque rod that is supported by two points on the vehicle wheel and the vehicle body.

However, there are some problems in the machine part forging device for forming the reaction chamber.

First, when the molten metal is forged by the lower mold and the upper mold, gas mixed around the molten metal and in the molten metal was not smoothly discharged to the outside. As a result, the surface of the forged product is not smooth and the strength of the product is lowered.

In addition, the upper circumference of the upper mold is the portion where the heat transfer is the slowest and the fastest cooling. Therefore, when the molten metal in the lower mold is pressed into the upper mold, the entire molten metal is not cooled at the same speed, but is cooled first from the upper circumferential portion of the upper mold with the lowest heat transfer. Therefore, the entire pressurized molten metal is not cooled at the same rate but is cooled first around the upper end of the molten metal, thereby decreasing physical properties of the portion and increasing precipitation.

In addition, the torque rod manufactured by the conventional forging device is a straight shape, one end of which is fixed to the vehicle body and the other end of which is fixed to the wheel. As described above, the conventional torque rod is supported by two points on the vehicle. The two-point support did not adequately catch various movements such as tension, compression, and torsion between the front and rear wheels generated when the vehicle is driven. This problem is a major cause of deterioration of the stability of the vehicle, and may provide a cause of a large accident, such as a small problem of poor riding comfort and the vehicle overturning.

SUMMARY OF THE INVENTION An object of the present invention for solving the above problems is to provide a torque rod forging device and a torque rod for forming a reaction vessel for smoothly discharging gas in the molten metal during forging.

It is another object of the present invention to provide a torque rod forging apparatus and a torque rod for forming a reaction tank in which the entire upper mold is maintained at a uniform temperature before the forging operation.

It is still another object of the present invention to provide a torque rod forging device and a torque rod for forming a reaction vessel which can change the position of the injection tube as necessary.

It is still another object of the present invention to provide a torque rod forging device and a torque rod for forming a reaction tank for safely transporting and supplying a molten metal by weight.

It is still another object of the present invention to provide a torque rod forging device and a torque rod for forming a reaction tank in which a wheel and a body are supported at three points so that various movements such as tension, compression, and torsion between the front and rear wheels can be properly held. To provide.

Torque rod forging device for reaction solidification of the present invention for achieving the above object, the main body is installed the main cylinder, the lower mold is installed on the lower base of the upper bed and pressurized forging the lower part of the product, and the main Torque for reaction molding comprising an upper mold connected to the cylinder and lifted by the upper mold for pressurizing and forging the upper part of the product, and a drawing means installed between the lower mold and the lower base to take out the product in the lower mold to the upper side. In the rod forging device, an A-shaped forging space is formed on an inner surface thereof, and an A-shaped forging protrusion having a lower height is formed in the A-forging space, and the gas entrained in the circumference of the molten metal and the molten metal in the A-forging space A lower mold having a vent hole formed therein to be discharged thereto; A type forging space is formed at the bottom surface, and a type A forging protrusion having a lower height is formed in the A forging space, and the vent hole is discharged so that the gas mixed in the circumference of the melt and the gas mixed in the melt are discharged to the outside when the A forging space is pressed. Formed upper mold; The burner head is formed in a ring shape so as to be installed around the upper end of the upper mold to heat the upper circumference of the upper mold, which is the latest and fastest cooling temperature transfer, and a fuel supply hose connected to the burner head to supply fuel thereto. Upper mold heating means made; A support shaft installed at the rear center of the main body, a rotation shaft installed perpendicularly to the upper end of the support shaft, a drive motor connected to the rotation shaft to rotate it, and fixed to an upper end of the rotation shaft, thereby rotating in a horizontal direction. Melting guide means which is installed in the angle adjusting bracket and the angle adjusting bracket and guides the molten metal to the riser tube; It is installed at the rear of the main body and the molten metal transfer means for transferring the molten metal in the thermal insulation to the molten metal guide means; characterized in that it is further provided.

In another aspect of the present invention, the torque rod forging device for forming the reaction tank is characterized in that the molten metal conveying means is installed on the molten metal transfer guide rail and the molten iron transport guide rail installed between the heat retaining furnace and the injection tube, and is then transported accordingly. A molten metal transport trolley which is installed in the molten metal transport trolley, and which is transported along the molten metal transport guide rail, and a vertical guide which is installed on one side of the molten metal trolley and reciprocated with it, and on the vertical guide. A ladle bar which is installed and lifted along the ladle bar, a ladle bar lifting cylinder installed on the molten metal transport trolley and connected to the ladle bar to lift the ladle bar, and installed to rotate at an end of the ladle bar to keep warm Ladle for storing the molten metal in the furnace and injecting the stored molten metal into the injection tube, and the ladle Is provided at the upper end be coupled to the ray of the ladle comprises a rotation motor for rotating said X-rays.

Torque rod forged by the torque rod forging device for reaction solidification of the present invention for achieving the above object, the main body is installed in the main cylinder, the lower base is installed on the lower base of the bed upper pressure forging the lower part of the product A reaction is provided between a mold and an upper mold connected to and lifted by the main cylinder and press-forging the upper part of the product, and a dispensing means installed between the lower mold and the lower base to take out the product in the lower mold upward. A torque rod forged by a forging device for high molding, which supports one point on a wheel to protect the vehicle body by supporting tension loads, distortions, and pulls generated in the vehicle body when starting the vehicle or braking a vehicle in operation. And two points supported by the vehicle body, and the whole has an A shape.

Torque rod forged by the forging device for the reaction tank molding of the present invention, the main body is installed the main cylinder, the lower mold is installed on the lower base of the upper bed and pressurized forging the lower part of the product, and is connected to the main cylinder It is forged by a forging apparatus for reaction vessel forming, which is lifted by the upper mold for pressurizing and forging the upper part of the product, and the ejection means installed between the lower mold and the lower base to take out the product in the lower mold to the upper side. In the torque rod, a wheel support boss is formed in the inner center and a first weight reducing groove is formed in the outer circumference and is coupled to the wheel, and a second steel bush hole is formed in the inner center and the outer circumference is formed. The second weight reducing groove is formed and the first body support boss coupled to one side of the vehicle body, and the third steel bush hole is formed in the inner center and the third radish around the outer A first rod having a crab reducing groove and coupled to the other side of the vehicle body, both ends of which are integrally connected to the wheel supporting boss and the first car body supporting boss, and having a fourth weight reducing groove formed on both sides thereof; A second rod having both ends integrally connected to the wheel support boss and the second vehicle body support boss and having a fifth weight reducing groove formed on both sides thereof; Its entirety is characterized in that it is formed to have an A shape.

Another characteristic of the torque rod forged by the forging apparatus for reaction solidification of the present invention is that the first rod and the second rod are formed to form an angle of 53 ° to 63 ° with each other.

Further features of the torque rod forged by the forging device for the reaction solidification of the present invention, the outer weight of the wheel support boss, the first car body support boss, the second car body support boss, the overall weight is reduced and the upper mold And a first vertical surface, a second vertical surface, and a third vertical surface, each of which is partially cut into a vertical shape, so as to facilitate separation of the forged torque rod from the lower mold.

In the present invention, since the band hole is formed on the inner surface of the lower mold and the bottom of the upper mold, when the molten metal is forged by the lower mold and the upper mold, the gas mixed in the periphery of the molten metal and the inside of the molten metal to the outside along the vent hole. It is discharged smoothly, thereby preventing the defect of the product.

In addition, a burner having a ring-shaped burner head having a fuel ignition and a fuel supply hose connected to and supplying fuel to the burner head is provided, and the upper circumference of the upper mold at which the temperature transfer is slowest and fastest cooled by the burner. Heat it. Therefore, since the entire upper mold is heated to maintain a uniform temperature before or during the forging operation, physical properties around the upper mold are improved and precipitation is reduced.

Then, the molten metal guide means of the present invention is installed so that the injection pipe is rotated along the horizontal direction. When the molten metal is injected into the riser tube, the molten metal guide means is rotated so that one end of the injection tube faces the riser tube, and when the molten metal is finished, both ends of the injection tube are rotated to face both sides of the back of the main body. Minimize space occupancy Therefore, when the injection operation is completed, the injection pipe is rotated and returned, thereby maximizing the space utilization around the injection guide means.

In addition, a molten metal transfer guide rail is installed between the insulation furnace and the molten metal guide means, and a molten metal transport trolley is installed on the molten metal transport guide rail so that the molten metal transport trolley is lifted along the vertical guide of one side thereof. Ladles are installed. Therefore, since the ladle is transported and lifted in the horizontal direction in a stable state by the molten metal transfer means, even if the weight of the molten metal contained in the ladle can be transported stably.

In addition, the torque rod of the present invention is A-shaped in its entirety, one end of one side is fixed to the wheel and both ends of the other side is fixed to the vehicle body, and is supported by three points as a whole. As described above, the torque rod of the present invention is supported by three points and is most stably supported by the vehicle, so that various movements such as tension, compression, and torsion between the front and rear wheels generated during the driving of the vehicle can be properly caught.

Specific features and advantages of the present invention will become more apparent from the following description with reference to the accompanying drawings.

1 to 3 is a schematic front view, side view, and plan view showing a torque rod forging device for the reaction solidification of the present invention, Figures 4 to 8 is a state in which the molten metal injected into the lower mold 14 is sequentially forged Figures are schematic cross-sectional views.

Torque rod forging device for the reaction solidification of the present invention, the main body (1), the lower mold portion 10, the upper mold portion 20, the extraction means 30, the upper mold heating means 40, molten metal It consists of a guide means 50, a melt transfer means 60, a product transfer means (70).

As shown in FIG. 1, the main body 2 is provided with a main cylinder 2 at an upper portion of the main body 1, and the main cylinder 2 is provided to elevate the upper mold part 20 to be described later. The lower mold part 10 which will be described later is provided below the mold part 20.

The lower mold part 10 is installed in the lower center of the main body 1 and lifted on the lower base 11, as shown in FIGS. 4 to 8, and molten metal is injected to form the lower part of the product. . The lower mold part 10 includes a lower base 11, a lower fixing plate 12 fixed to an upper portion of the lower base 11, and a fixed shaft 13 fixed on the lower fixing plate 12. ) And a lower mold 14 fixed to the upper end of the fixed shaft 13. The lower mold 14 has a coupling hole 14a is formed so that the take-out pin 33 is coupled to one side thereof to be elevated along this.

In addition, in the lower mold 14, an A-shaped forging space 14b is formed on the inner surface of the A-shaped forging space 14b so as to forge an A-type torque rod 80 therein. A high forged A-shaped forged portion 14c is formed, and the A-shaped forged portions 14c are provided for the first to fifth weight reducing grooves 81b, 82b, 83b, and 84a of the torque rod 80 to be described later. A portion of) 85a is formed.

In addition, a vent hole 14d is formed in the inner surface of the lower mold 14 so that the gas mixed in the A-shaped forging space 14b and the gas mixed in the molten metal are discharged to the outside. Since the band hole 14d is formed on the inner surface of the lower mold 14 as described above, when the molten metal is forged by the lower mold 14 and the upper mold 24, gas mixed in the periphery of the molten metal and in the molten metal is formed in the vent hole ( It is discharged smoothly along 14d).

The upper mold portion 20 is installed in the main cylinder 2 of the main body 1, as shown in Figs. 4 to 8 and is formed by lifting the main cylinder (2) while forming the upper portion of the torque rod 80 do.

The upper mold part 20 has an upper base 21 installed on the main cylinder 2, an upper fixing plate 22 fixed to the upper base 21, and an upper end thereof on the upper fixing plate 22. The support shaft 23 is fixed, and the upper mold 24 is fixed to the lower end of the support shaft 23.

Here, in the upper mold 24, an A-type forging space 24a is formed on the inner surface of the A-shaped forging space 24a so as to forge an A-type torque rod 80, and in this A-shaped forging space 24a, A low-shaped A forged protrusion 24b is formed, and the A-shaped forged protrusion 24b first to fifth weight reducing grooves 81b, 82b, 83b and 84a of the torque rod 80 to be described later. The remaining portion of) 85a is formed.

In addition, a vent hole 24c is formed on the inner surface of the upper mold 24 so that the gas mixed in the A-shaped forging space 24a and the gas mixed in the molten metal are discharged to the outside. Since the band hole 24c is formed on the inner surface of the upper mold 24 as described above, when the molten metal is forged by the lower mold 14 and the upper mold 24, gas mixed in the periphery of the molten metal and in the molten metal is formed in the vent hole ( It is discharged smoothly along 24c).

The ejection means 30 includes a lower lift cylinder 31, a ejection plate 32, and a ejection pin 33. The lower lift cylinder 31 is installed in the lower part of the main body (1). The ejecting plate 32 is connected to the rod of the lower elevating cylinder 31 and thereby is elevated. The ejection pin 33 is installed on the ejection plate 32 and is elevated together with the ejection plate 32 when the lower elevating cylinder 31 is operated. The ejection pin 33 is inserted into the coupling hole 14a of the lower mold 14 and lifts the forged torque rod 80 from the lower mold 14 while being lifted along.

11 and 12, the upper mold heating means 40 is installed in the upper mold 24 of the upper mold portion 20 so that the entire upper mold 24 maintains a uniform temperature (the upper mold 24). 24) Heat around the top.

The upper mold heating means 40 is composed of a burner. It is made of a ring shape to be installed around the upper end of the upper mold 24, the burner head 41 is formed with a plurality of fuel ignition 42 and the fuel supply hose connected to the burner head 41 to supply fuel thereto It consists of 43.

The upper mold heating means 40 heats the upper circumference of the upper mold 24 immediately before or during forging. Since the upper circumference of the upper mold 24 is the portion where the temperature transmission is the slowest and the fastest cooling, the portion is appropriately heated so that the entire upper mold 24 is maintained at a uniform temperature during forging. This improves the physical properties around the upper mold 24 and prevents precipitation of the torque rod 80 forged by the upper circumference of the upper mold 24 and thereby.

The molten metal guide means 50 is installed in the main body 1 behind the lower mold 14, as shown in Figs. 2 and 13, the riser tube cylinder 46 is operated so that the riser tube 45 is lowered. When placed on the mold 14, an injection tube 57 is provided to inject molten metal into the riser tube 45, and the injection tube 57 is installed to rotate in the horizontal direction.

The molten metal guide means 50, the drive motor 51 is installed in the rear center of the main body 1, the hollow support shaft 52 is installed on the drive motor 51, the support shaft ( 52 is vertically provided at the upper end and connected to the drive motor 51, and is rotated by the drive motor 51 when the drive motor 51, and is fixed to the upper end of the rotation shaft 53 and in the horizontal direction with it The angle adjustment bracket 54 to be rotated, and is installed in the angle adjustment bracket 54 and consists of an injection tube 57 for guiding the molten metal to the riser tube 45.

Here, the hinge hole 54a is formed at one side of the angle adjustment bracket 54 so that one side of the injection tube 57 is coupled to the hinge pin 55. On the other side of the angle adjustment bracket 54, the angle of the arc shape to be fixed to the angle adjustment bracket 54 to the angle adjustment bracket 54 in the state in which the injection tube 57 is rotated or rotated around the hinge pin (55) The adjusting hole 54b is formed.

The injection tube 57 of the molten metal guide means 50, by the angle adjustment bracket 54 and the hinge pin 55, the angle adjusting bolt 56 can be adjusted in the vertical direction, the drive The motor 51 and the rotating shaft 53 can rotate in the horizontal direction.

The injection tube 57 of the molten metal guide means 50 is rotated so that one end of the injection tube 57 faces the riser tube 45 when the molten metal is injected into the riser tube 45. Both ends of the 57 are rotated to face both sides of the rear surface of the main body 1 to minimize the space occupancy of the molten metal guide means 50. When the molten metal injection operation is completed as described above, the injection tube 57 is rotated again to maximize the space utilization around the molten metal guide means 50.

The molten metal transfer means 60 is installed in the rear of the main body 1, as shown in Figs. 1 to 3 and 14, the injection pipe of the molten metal in the thermal insulation path 44 ( 57).

The molten metal transfer means 60 is provided with a molten metal transfer guide rail 61 so that the ladle 67, which will be described later, passes through the heat retention path 44 and the injection tube 57. On this molten metal transfer guide rail 61, a molten metal transfer cart 62 is installed so that it may be conveyed along this. The trolley transfer motor 63 is installed in the molten metal transfer trolley 62 so as to transfer it along the molten metal transfer guide rail 61.

The vertical guide 64 is fixed to one side of the molten metal transport trolley 62 along with the molten metal transport trolley 62 so as to be transported in the horizontal direction along the molten metal transport guide rail 61. The vertical guide 64 is provided with a ladle bar 65 to be elevated along this. A ladle bar elevating cylinder 66 is provided on the molten metal transport trolley 62, and the rod of the ladle bar elevating cylinder 66 is connected to the ladle bar 65. As shown in FIG. Accordingly, the ladle bar 65 is elevated along the vertical guide 64 by the operation of the ladle bar lifting cylinder 66.

At the end of the ladle bar 65, a ladle 67 is installed to store the molten metal in the thermal furnace 44 and inject the stored molten metal into the injection tube 67. The ladle 67 is coupled to the end of the ladle bar 65 by a hinge axis 69. The ladle rotation motor 68 is installed at the upper end of the ladle bar 65 so as to be connected to the ladle 67 to rotate the ladle 67 about the hinge axis 69.

Thus, the above-mentioned molten metal transfer means 60 is provided with a molten metal transfer guide rail 61 between the heat retention path 44 and the molten metal guide means 50, and this molten metal transfer guide rail 61 is conveyed accordingly. The molten metal conveyance trolley 62 is provided, and the molten iron conveyance trolley 62 is provided with the ladle 67 so that it may be elevated along the vertical guide 64 of one side. Therefore, since the ladle 67 is transported and lifted in the horizontal direction in a stable installation state by the molten metal transfer means 60, the ladle 67 can be stably transported even if a heavy molten metal is contained.

As illustrated in FIG. 1, the product transfer means 70 is provided with a product transfer rail 71 on one side of the main body 1. On this product transfer rail 71, a product transfer cart 72 for receiving and conveying the torque rod 80 to be transported along with this is installed. A product holder transfer rail 73 is provided between the product transfer cart 72 and the water tank 75 to connect them. On this product holder transfer rail 73, a product holder 74 is provided to hold the product on the product transfer cart 72 and transport it into the water tank 75.

In the torque rod forging apparatus for forming the reaction reactor of the present invention having such a configuration, the riser tube 45 is transferred to the upper side of the lower mold 14 so as to inject the molten metal in the thermal furnace 44 into the lower mold 14. One end of the injection tube 57 is rotated to be positioned on the riser tube 45.

After the riser tube 45 and the injection tube 57 are set, the upper mold heating means 40 heats the upper circumference of the upper mold 24 where the temperature transfer is the slowest and fastest cooling. Thus, while the upper mold 24 presses the molten metal in the lower mold 14, the circumference of the upper mold 24 relatively far from the inside of the lower mold 14 has the same or similar temperature as the lower portion of the upper mold 24. Will be maintained. Therefore, the entire upper mold 24 maintains a constant temperature while the molten metal is forged, so that the physical properties around the upper mold 24 are improved and precipitation around the upper end of the upper mold 24 or the upper circumference of the forged torque rod 80 is performed. The phenomenon is reduced.

When the upper end of the upper mold 24 is heated, the molten metal is injected into the lower mold 14 by the molten metal guide means 50 and the molten metal transfer means 60. First, when the riser tube cylinder 46 is operated so that the riser tube 45 is transferred to the upper portion of the lower mold 14, the molten metal guide means 50 is operated.

When the driving motor 51 of the molten metal guide means 50 is operated, the rotating shaft 53 is rotated, and the angle adjustment bracket 54 and the injection tube 57 installed therein are rotated in the horizontal direction. As such, when the injection tube 57 is rotated and one end thereof is positioned on the riser tube 45, the driving motor 51 is stopped.

When the driving motor 51 of the molten metal guide means 50 is stopped, the molten metal transfer means 60 is operated. First, when the rod of the ladle bar elevating cylinder 66 of the molten metal transfer means 60 moves forward, the ladle bar 65 descends along the vertical guide 64, and the ladle 67 keeps warmth 44. It enters inside. When the molten metal in the heat retention path 44 is contained in the ladle 67 in an appropriate amount, the rod of the ladle bar lifting cylinder 66 is reversed, and the ladle 67 is drawn out to the upper side of the heat retention path 44.

In this way, when the appropriate amount of the molten metal is contained in the ladle 67, the trolley transfer motor 63 of the molten metal transfer means 60 is driven and the molten metal trolley 62 is moved along the molten metal guide rail 61 in the horizontal direction. Transfer to. Therefore, the ladle 67 of the upper portion of the heat retention path 44 is transported along the molten metal transfer guide rail 61 and is transferred above the injection pipe 57 of the molten metal guide means 50.

When the ladle 67 is positioned above the injection tube 57, the balance feed motor 63 is stopped and the ladle rotation motor 68 is operated. When the ladle rotation motor 68 is operated, the ladle 67 is rotated about the hinge axis 69 to inject molten metal inside the ladle 67 onto the injection tube 57. The molten metal injected into the injection tube 57 flows along the injection tube 57 and flows into the lower mold 14 through the riser tube 45.

When the molten metal is injected into the lower mold 14 as illustrated in FIG. 4, the upper mold 24 descends as illustrated in FIG. 5 to pressurize the molten metal in the lower mold 14. When the molten metal in the lower mold 14 is sufficiently pressurized and forged, the upper mold 24 is raised as shown in FIG. 6.

When the upper mold 24 is raised, the take-out means 30 is operated to take out the torque rod 80 in the lower mold 14 therefrom. That is, when the lower lift cylinder 31 is raised, the ejecting plate 32 and the ejecting pin 33 connected thereto are raised, and the torque rod 80 forged by the ejecting pin 33 is raised to the lower mold 14. It is taken out from.

When the torque rod 80 is taken out, the product transfer cart 72 of the product transfer means 70 is positioned below the upper mold 24 so that the torque rod 80 taken out from the upper mold 24 is loaded. The loaded torque rod 80 is transferred to the water tank 75 side, and the transferred torque rod 80 is gripped by the product holder 74 to be immersed in the water tank 75 and cooled. After the transfer of the torque rod 80, the release material is injected into the lower mold 14 and the upper mold 24.

FIG. 15 is a perspective view illustrating a torque rod 80 forged by the torque rod forging device for forming a reaction tank of the present invention, and FIG. 16 illustrates first to third steel bushes for installing the torque rod 80 to a vehicle. It is a top view which shows the state in which the steel bush 86 was attached to the hole 81a, 82a, 83a.

The torque rod 80 has an A shape as a whole. One portion of one side of the torque rod 80 is supported by the wheel at one point, and two portions of the other side are supported by the vehicle at two points and three points are supported by the vehicle as a whole. Therefore, the vehicle body is protected by supporting tensile loads, distortions, and pulls generated in the vehicle body when starting the vehicle or braking the vehicle in operation.

The configuration of the torque rod 80 will be described in detail as follows.

The torque rod 80 includes a wheel support boss 81, a first body support boss 82, a second body support boss 83, a first rod 84, and a second rod 85.

The wheel support boss 81 has a first steel bushing hole 81a formed at an inner center thereof, and a first weight reducing groove 81b formed at an outer circumference thereof, and is coupled to the wheel. The first body support boss 82 has a second steel bushing hole 82a formed at the inner center thereof, and a second weight reducing groove 82b formed at the outer circumference thereof, and is coupled to one side of the vehicle body. The second body support boss 83 has a third steel bushing hole 83a formed at the inner center thereof, and a third weight reducing groove 83b formed at the outer circumference thereof, and is coupled to the other side of the vehicle body.

Both ends of the first rod 84 are integrally connected to the wheel support boss 81 and the first vehicle body support boss 82, and fourth weight reducing grooves 84a are formed on both surfaces thereof. Both ends of the second rod 85 are integrally connected to the wheel support boss 81 and the second vehicle body support boss 83, and fifth weight reducing grooves 85a are formed on both surfaces thereof.

The wheel support boss 81, the first body support boss 82, the second body support boss 83, the first rod 84, and the second rod 85 of the torque rod 80 are all integrally formed. The first to fifth weight reducing grooves 81b, 82b, 83b, 84a, and 85a formed around the same are also connected to one.

In the torque rod 80 of the present invention, the steel bush 86 inserted into the first steel bushing hole 81a of the wheel support boss 81 is fixed to the wheel, and the second of the first body support boss 82 is fixed. The steel bushes 86 inserted into the steel bushing holes 82a and the third steel bushing holes 83a of the second vehicle body support boss 83 are respectively fixed to the vehicle body.

Therefore, three parts of the torque rod 80, the overall shape of which is A-shaped, is supported by the vehicle three points. Thus, the torque rod 80 of the present invention is supported by the vehicle three points to support the vehicle most stably. Therefore, it is possible to appropriately hold various movements such as tension, compression, and torsion between the front and rear wheels generated during the driving of the vehicle.

Here, when the first rod 84 and the second rod 85 at an angle of 53 ° to 63 °, the shaking of the vehicle is corrected as much as possible. If the angle is smaller than 53 °, the effect of compensating for the shaking of the vehicle is not large. If the angle is larger than 63 °, the overall size of the torque rod 80 is increased, so that the unit cost of the product and its installation space are unnecessarily increased. Problem occurs.

17 is a perspective view showing another embodiment of the torque rod 80, which is a first support at the outer ends of the wheel support boss 81, the first body support boss 82, the second body support boss 83; The vertical surface 81c, the 2nd vertical surface 82c, and the 3rd vertical surface 83c are formed, respectively. The first vertical surface 81c, the second vertical surface 82c, and the third vertical surface 83c serve to reduce the overall weight of the torque rod 80, and after being forged, the lower mold 14 and the upper mold 24 ) To allow for easy separation.

This lightweight torque rod 80 is in line with the efforts of the automobile industry and the government to research and promote the weight reduction of vehicle components for fuel efficiency improvement, exhaust emission reduction, steering stability, and the like.

The torque rod forging device and the torque rod for forming the reaction solid of the present invention have various advantages as follows.

First, when the molten metal is forged by the lower mold 14 and the upper mold 24 because the band holes 14d and 24c are formed on the inner surface of the lower mold 14 and the bottom of the upper mold 24. The gas mixed in the surroundings and the molten metal is smoothly discharged to the outside along the vent holes 14d and 24c, thereby preventing the failure of the torque rod 80.

Second, the upper mold heating means 40 having a ring-shaped burner head 41 and a fuel supply hose 43 connected to the burner head 41 and supplying fuel thereto are provided. The upper mold heating means 40 heats the upper circumference of the upper mold 24 at which the temperature transmission is the slowest and fastest cooling. Therefore, since the entire upper mold 24 is heated to maintain a uniform temperature before or during the forging operation, the physical properties of both upper molds 24 are improved and precipitation is reduced.

Third, the molten metal guide means 50 of the present invention is installed such that the injection tube 57 is rotated along the horizontal direction. The molten metal guide means 50 is rotated such that one end of the injection tube 57 faces the riser tube 45 when the molten metal is injected into the riser tube 45, and both ends of the injection tube 57 are finished when the molten metal is injected. The main body 1 is rotated to face both sides of the main body 1 to minimize space occupancy of the molten metal guide means 50. Therefore, since the injection pipe 57 is rotated and returned after the injection of the molten metal, the space utilization around the molten metal guide means 50 may be maximized.

Fourth, a molten metal transfer guide rail 61 is installed between the insulation furnace 44 and the molten metal guide means 50, and a molten metal transport trolley 62 is installed on the molten metal transfer guide rail 61 so as to be transferred along it. In addition, the molten metal transport trolley 62 is provided with a ladle 67 to be elevated along the vertical guide 64 on one side thereof. Therefore, since the ladle 67 is transported and lifted in the horizontal direction in a stable state by the above-mentioned melt transfer means 60, even if a weight of molten metal is contained in the ladle 67, it can be stably transported.

Fifth, the torque rod 80 of the present invention is an A-shape as a whole, the wheel support boss 81 of one side is fixed to the wheel and the first body support boss 82 and the second body support boss 83 of the other end ) Is fixed to the vehicle body and is supported by three points as a whole. As described above, since the torque rod 80 of the present invention is supported by three points and is most stably supported by the vehicle, various movements such as tension, compression, and torsion between the front and rear wheels generated during driving of the vehicle can be properly caught.

According to the present invention as described above, when the molten metal is forged, the gas mixed in the periphery of the molten metal and the molten metal in the molten metal is smoothly discharged to the outside along the vent hole, and the total temperature of the upper mold before or during the forging operation by the upper mold heating means. Is kept constant. In addition, since the injection tube is installed to rotate in the horizontal direction, it is possible to change the position of the injection tube as needed, thereby maximizing the space utilization around the injection tube, and horizontally in a state in which the ladle is stably installed by the molten metal transfer means. Since it is conveyed in the up and down directions, even if a molten metal is contained in the ladle, it can be stably transported. In addition, the torque rod of the present invention is A-shaped as a whole, one end of one side is fixed to the wheel and both ends of the other side is fixed to the vehicle body is most stably supported by the vehicle. Therefore, it is possible to appropriately hold various movements such as tension, compression, and torsion between the front and rear wheels generated during the driving of the vehicle.

Claims (6)

A main body to which the main cylinder is installed, a lower mold installed on the lower base of the upper part of the bed and pressurized and forged a lower part of the product, and an upper mold connected to the main cylinder and lifted by the main mold to pressurize and forge the upper part of the product; In the torque rod forging device for reaction high-moulding is provided between the lower mold and the lower base is provided with a take-out means for taking out the product in the lower mold upwards, An A-shaped forging space 14b is formed on the inner surface, and an A-shaped forging protrusion 14c having a lower height is formed in the A-shaped forging space 14b, and around the molten metal in the A-shaped forging space 14b. A lower mold 14 in which a vent hole 14d is formed so that the gas mixed in the gas is discharged to the outside; An A-shaped forging space 24a is formed on a bottom surface, and an A-shaped forging protrusion 24b having a lower height is formed in the A-shaped forging space 24a. An upper mold 24 in which a vent hole 24c is formed so that the gas is discharged to the outside; Burner head 41 and the burner head 41 formed in a ring shape so as to be installed around the upper end of the upper mold 24 to heat the upper circumference of the upper mold 24 where the temperature transmission is the slowest and fastest cooling. An upper mold heating means 40 connected to the upper mold and configured to supply a fuel thereto; A drive shaft 52 installed at the rear center of the main body 1, a rotation shaft 53 vertically installed at an upper end of the support shaft 52, and a drive connected to the rotation shaft 53 to rotate it; The motor 51, the angle adjustment bracket 54 is fixed to the upper end of the rotary shaft 53 and rotates in the horizontal direction, and is installed on the angle adjustment bracket 54 to guide the molten metal to the riser tube 45 Melting guide means (50) consisting of an injection tube 57; It is installed in the rear of the main body (1) molten metal transfer means for transferring the molten metal in the thermal path (44) to the molten metal guide means 50; Torque rod forging device for reaction molding is further provided In the molten metal transfer means 60, A molten metal feed guide rail 61 installed between the heat retention path 44 and the injection pipe 57; A molten metal transport trolley 62 installed on the molten metal transfer guide rail 61 and transported along the molten metal, A trolley transfer motor 63 installed in the molten metal transfer trolley 62 and transferring the same along the molten metal transfer guide rail 61; A vertical guide 64 installed at one side of the molten metal transport trolley 62 and reciprocated with it; The ladle bar 65 is installed in the vertical guide 64 and is elevated along this, A ladle bar elevating cylinder 66 installed on the molten metal transport trolley 62 and connected to the ladle bar 65 to elevate the ladle bar 65; A ladle 67 installed to rotate at an end of the ladle bar 65 to store the molten metal in the thermal furnace 44 and inject the stored molten metal into the injection tube 57; Torque rod for reaction molding, characterized in that consisting of a ladle rotation motor 68 is installed on the upper end of the ladle bar 65 and connected to the ladle 67 to rotate the ladle 67 Forging device. delete A main body to which the main cylinder is installed, a lower mold installed on the lower base of the upper part of the bed and pressurized and forged a lower part of the product, and an upper mold connected to the main cylinder and lifted by the main mold to pressurize and forge the upper part of the product; In the torque rod forged by the forging device for reaction high-moulding is provided between the lower mold and the lower base is provided with a take-out means for taking out the product in the lower mold upwards, One point support on the wheel, two points support on the vehicle body, and the whole having an A shape to protect the vehicle body by supporting the tension load, distortion, and pull generated in the vehicle body when starting the vehicle or braking a vehicle in operation. Torque rod forged by the torque rod forging device for reaction molding. A main body to which the main cylinder is installed, a lower mold installed on the lower base of the upper part of the bed and pressurized and forged a lower part of the product, and an upper mold connected to the main cylinder and lifted by the main mold to pressurize and forge the upper part of the product; In the torque rod forged by the forging device for reaction high-moulding is provided between the lower mold and the lower base is provided with a take-out means for taking out the product in the lower mold upwards, The first steel bushing hole 81a is formed at the inner center, the first weight reducing groove 81b is formed at the outer circumference, and the wheel support boss 81 is coupled to the wheel, and the second steel bushing hole is formed at the inner center. 82a) is formed, the second weight reducing groove (82b) is formed on the outer periphery, the first body support boss 82 is coupled to one side of the vehicle body, and the third steel bush hole (83a) is formed in the inner center and the outer A third weight reducing groove 83b is formed around the second body support boss 83 coupled to the other side of the vehicle body, and both ends are integral with the wheel support boss 81 and the first body support boss 82. And a first rod 84 having a fourth weight reducing groove 84a formed on both surfaces thereof, and both ends of which are integrally connected to the wheel support boss 81 and the second vehicle body support boss 83, respectively. A second rod 85 having a weight reducing groove 85a formed therein; Torque rod forged by the torque rod forging device for reaction high-molding, characterized in that the whole is formed to have an A-shape. The method of claim 4, wherein the first rod 84 and the second rod 85, Torque rod forged by the torque rod forging device for forming the reaction chamber, characterized in that formed to form an angle of 53 ° to 63 ° with each other. The outer end of the wheel support boss 81, the first vehicle body support boss 82, the second vehicle body support boss 83, The first vertical surface 81c having a shape in which a portion thereof is cut in a vertical plane so as to reduce the overall weight and to facilitate the separation of the torque rod 80 forged from the lower mold 14 and the upper mold 24. Torque rod forged by the torque rod forging device for reaction high-molding, characterized in that the two vertical surface (82c), the third vertical surface (83c) is formed.

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