JP4814814B2 - Die lubricator for forging press - Google Patents

Description

  The present invention relates to a die lubrication device for a forging press that injects a lubricant onto a forging surface of each die during a forging operation of the forging press.

  In a forging press in which multiple sets of upper and lower opposing dies are arranged in the left-right direction, lubricant is sprayed onto the forging surface of each die during the forging operation, and the forging surface of each die is used for cooling and cleaning. Lubricate. In this way, the lubrication device for lubricating the forging surface of the die of the forging press has a lubricant injection mechanism having a plurality of sets of nozzle pipes moved forward and backward from the forging press, and the upper die moves up and down. In accordance with the timing when a space is opened between the molds, each set of nozzle tubes is allowed to enter a forging press in which a plurality of molds are arranged, and predetermined nozzles arranged in the left-right direction from the nozzles of each set of nozzle tubes. There are some which inject a lubricant onto the forging surface of each mold (see, for example, Patent Document 1). Usually, the lubricant injection mechanism is often advanced and retracted from the rear surface side of the forging press.

  In the one described in Patent Document 1, when each set of nozzle tubes is inserted into the forging press, each set is arranged so that they come close to the center of each mold arranged in the left-right direction of the forging press. These nozzle tubes are arranged so as to be aligned with the positions in the left-right direction of predetermined molds.

JP 2006-61955 A

  In the die lubrication device for forging press as described in Patent Document 1, since there are guide posts for guiding the raising and lowering of the upper die holder on the front side and the rear side of the forging press, depending on the arrangement state of each die In some cases, the guide post or the like becomes an obstacle in the forward / backward direction of the nozzle tube, and the horizontal position of some groups of nozzle tubes cannot be adjusted to the horizontal position of a predetermined mold. For this reason, there is a problem that the lubricant cannot be uniformly applied to the forging surface of a predetermined mold.

  In addition, when the nozzle tube is displaced from the left-right direction position of a predetermined mold, it may be possible to inject the lubricant obliquely toward the upper and lower molds. Since there are or convex portions, if the lubricant is injected obliquely in the vertical direction, the lubricant cannot be applied to the shadowed portions of these concave and convex portions.

  Accordingly, an object of the present invention is to allow the lubricant to be uniformly applied to the forging surface of each predetermined die even if there is an obstacle such as a guide post in the forward / backward direction of the nozzle tube.

  In order to solve the above-described problems, the present invention advances and retracts a lubricant injection mechanism including a plurality of sets of nozzle tubes from the front-rear direction of the forging press so that the plurality of sets of nozzle tubes are vertically opposed to each other. A forging press in which a die is inserted into a forging press arranged in the left-right direction, and a lubricant is injected from the nozzles of each set of nozzle pipes onto the forging surface of each predetermined die arranged in the left-right direction. In the mold lubrication apparatus, each set of nozzle pipes for injecting a lubricant to the forging surface of each predetermined mold is disposed in a portion free from obstacles in the forward and backward direction from the front-rear direction of the forging press. Among the nozzle tubes in each set, a set of nozzle tubes whose positions are shifted in the left-right direction of the forging press and the center of each predetermined mold arranged in the forging press can be moved in the left-right direction of the forging press. Use a moving nozzle tube and move the lubricant injection mechanism forward. When these moving nozzle tubes pass the position of the obstacle, the moving nozzle tube is moved in the left-right direction of the forging press so that the nozzle position is brought closer to the center of the predetermined mold. Adopted.

  That is, each set of nozzle tubes for injecting lubricant onto the forging surface of each predetermined mold is disposed in a position free of obstacles in the forward and backward direction from the front-rear direction of the forging press, and each of these sets of nozzle tubes Among them, the nozzle tube of a set shifted in the left-right direction of the forging press with the center of each predetermined die arranged in the forging press is a moving nozzle tube movable in the left-right direction of the forging press, and a lubricant When these moving nozzle tubes pass the position of the obstacle by advancing the injection mechanism, the moving nozzle tube is moved in the left-right direction of the forging press so that the position of the nozzle approaches the center of a predetermined mold. Even if there are obstacles such as guide posts in the forward and backward direction of the nozzle tube, the lubricant is sprayed evenly on the forging surface of each predetermined die by injecting the lubricant from directly below or above the predetermined upper and lower dies. Can be applied.

  Movement is provided by pivotally supporting the proximal end side of the moving nozzle tube with a vertical rotation shaft and moving the moving nozzle tube in the left-right direction of the forging press by turning in the left-right direction. The nozzle tube can be quickly moved in the left-right direction with a simple support mechanism.

  A plurality of the moving nozzle pipes, the rotating means, a lever provided on each rotating shaft of the plurality of moving nozzle pipes, connected to a common cylinder with a link whose both end connection points are rotatable, The plurality of moving nozzle tubes are rotated by a common cylinder by rotating the rotating shafts by reciprocating movement of the cylinders to rotate the plurality of moving nozzle tubes in the left-right direction. be able to.

  The rotating means is provided with a fixed guide rail extending in the advancing / retreating direction of the moving nozzle tube and having an inclined portion inclined in the left-right direction of the forging press, and a movable body movable along the fixed guide rail is provided The moving nozzle is connected to the moving nozzle tube by a connecting rod that can rotate at a connecting point with the moving body, and the moving nozzle moves in the left-right direction at the inclined portion of the moving body that moves along the fixed guide rail. By rotating the tube in the left-right direction, the moving nozzle tube can be rotated by utilizing the advance and retreat of the lubricant injection mechanism, and the driving means for rotating the moving nozzle tube can be eliminated. .

  The die lubrication device for a forging press according to the present invention has a set of nozzle tubes for injecting lubricant onto the forging surface of each predetermined die in a position free of obstacles in the forward and backward direction from the front-rear direction of the forging press. Among these sets of nozzle tubes, a set of nozzle tubes whose positions are shifted in the left-right direction of the forging press from the center of each predetermined mold arranged in the forging press is provided in the left-right direction of the forging press. Move the movable nozzle tube to the left and right direction of the forging press when the movable nozzle tube is moved forward, and when the movable nozzle tube passes the position of the obstacle by moving the lubricant injection mechanism forward, the position of the nozzle Since the nozzle is brought closer to the center of the predetermined mold, even if there is an obstacle such as a guide post in the advancing and retreating direction of the nozzle tube, the lubricant is sprayed from directly below or above the predetermined upper and lower molds, Apply lubricant evenly to the forging surface of each mold Rukoto can.

  A moving nozzle tube is provided by pivotally supporting the proximal end side of the moving nozzle tube with a vertical rotating shaft and moving the moving nozzle tube in the left-right direction of the forging press by rotating in the left-right direction. Can be quickly moved in the left-right direction with a simple support mechanism.

  A plurality of the moving nozzle tubes are provided, and the rotating means is connected to a common cylinder with a link provided at each of the rotating shafts of the plurality of moving nozzle tubes, with link points at both ends being rotatable. By rotating each rotating shaft by reciprocating movement of the cylinder and rotating the plurality of moving nozzle tubes in the left-right direction, the plurality of moving nozzle tubes can be rotated by a common cylinder. .

  The rotating means is provided with a fixed guide rail extending in the forward / backward direction of the moving nozzle tube and having an inclined portion inclined in the left-right direction of the forging press, and a movable body movable along the fixed guide rail is provided as the movable body. The connecting nozzle is connected to the moving nozzle tube with a rotatable connecting rod, and the moving nozzle tube is rotated in the left-right direction due to the horizontal displacement at the inclined part of the moving body that moves along the fixed guide rail. By moving it, the moving nozzle tube can be rotated by utilizing the advance and retreat of the lubricant injection mechanism, and the driving means for rotating the moving nozzle tube can be made unnecessary.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 3 show a first embodiment. As shown in FIG. 1 and FIG. 2, the die lubrication device of this forging press has three nozzle tubes 3a, one for each of three groups, on a carriage 20 that can move to the rear surface side of the forging press 51. The lubricant injection mechanism 1 having 3b and 3c and the advance / retreat mechanism 21 for moving the lubricant injection mechanism 1 forward and backward from the rear surface side of the forging press 51 are mounted. The forging press 51 has three sets of molds 56a, 56b, and 56c that are vertically opposed to an upper die holder 53 that moves up and down guided by left and right guide posts 52 and a lower die holder 55 that is fixed to a bolster plate 54. The forging surfaces of the molds 56a, 56b, and 56c are circular in outline.

  The advancing / retracting mechanism 21 is a motor 22 attached to the rear side of the carriage 20 and rotationally drives a ball screw 23 directed in the front-rear direction, and a base 24 attached to the nut 23a is moved by left and right guide rails 25. The support base 2 of the lubricant injection mechanism 1 is attached to the tip ends of two shaft members 26 that extend forward from the base 24 while being guided. The two shaft members 26 that advance and retreat together with the base 24 are guided by a guide cylinder 27 provided on the front side of the carriage 20.

  The three nozzle tubes 3a, 3b, 3c of the lubricant injection mechanism 1 are arranged side by side in the left-right direction so as to protrude forward from the support base 2, and supply hoses to the respective bases. 4 are connected, and nozzles 5 for injecting the supplied lubricant in both the upper and lower directions are attached to the tip portion one by one. The central nozzle tube 3b is fixed to the support base 2 so that the center position of the central mold 56b for applying the lubricant is aligned with the left and right direction, and the left and right nozzle tubes 3a and 3c are provided with the left and right guide posts 52, respectively. The center of the left and right molds 56a, 56c to which the lubricant is applied is shifted from the center in the left-right direction so as not to become an obstacle in the forward / backward direction.

  As shown in FIGS. 3 (a) and 3 (b), the left and right nozzle tubes 3a and 3c are pivotally supported on the base end side by vertical rotating shafts 7 supported by bearings 6 on the support base 2, respectively. A lever 7a protruding to the rear side of each rotation shaft 7 is connected to a common cylinder 10 via a link 8 and a bifurcated member 9 whose connection points at both ends are freely rotatable, and an arrow in FIG. When the cylinder 10 is driven rearward, the nozzle nozzles 3a and 3c are movable nozzle tubes that rotate so that the tips of the left and right nozzle tubes 3a and 3c open to the left and right sides.

  Therefore, as shown by the one-dot chain line in FIG. 2, when the left and right nozzle tubes 3a and 3c pass the positions of the left and right guide posts 52, the cylinder 10 is driven rearward to inject the lubricant. The left and right nozzle pipes 3a and 3c whose left and right positions are shifted from the center of predetermined left and right molds 56a and 56c are rotated in the left and right directions, and the positions of the nozzles 5 attached to the respective tip portions are changed to the respective molds. It can be brought close to the center of the molds 56a and 56c, and the lubricant is sprayed not only on the central upper and lower molds 56b but also on the left and right upper and lower molds 56a and 56c from directly below or directly above, so that these forged surfaces are evenly lubricated. An agent can be applied. The timing of rotating the nozzle tubes 3a, 3c is not necessarily when the entire nozzle tubes 3a, 3c have passed through the guide posts 52, but when the tips and intermediate portions of the nozzle tubes 3a, 3c have passed. However, it is only necessary to avoid the guide post 52 which is an obstacle. Note that the left and right nozzle tubes 3a and 3c that have finished injecting the lubricant are rotated in the opposite direction to that of the forward movement, and retreat so as to avoid the left and right guide posts 52.

  4 to 6 show a second embodiment. The die lubrication device of this forging press has the same basic configuration as that of the first embodiment. As shown in FIG. 4, the forging surfaces of the three sets of the die 56a, 56b, 56c are formed. The point that the outline is an ellipse that is long in the front-rear direction is different from the configuration of the rotating means of the nozzle tubes 3a, 3c of the lubricant injection mechanism 1. In the lubricant injection mechanism 1, a support beam 11 is attached to the tips of two shaft members 26 of the advance / retreat mechanism 21, and three nozzle tubes 3a, 3b, 3c arranged in the left-right direction on the support beam 11 are provided. A proximal end side is attached, and a tube unit 12 to which a hose (not shown) for supplying lubricant is connected is attached to these proximal end portions, and a plurality of nozzles 13 are provided at the distal end portion. . As in the first embodiment, the center nozzle tube 3b is fixed to the support beam 11 so as to align the center of the center mold 56b with the left-right direction position, and the left and right nozzle tubes 3a serving as moving nozzle tubes, 3c is attached so that the center of the left and right molds 56a and 56c is shifted from the left and right direction positions so that the left and right guide posts 52 do not become obstacles in the forward and backward directions.

  As shown in FIGS. 4 and 5, the left and right nozzle tubes 3 a and 3 c are pivotally supported with their base ends fixed to a vertical rotating shaft 15 supported by a bearing 14 on a support beam 11. Downward C-shaped fixed guide rails 16 are attached to the left and right sides of the carriage 20 so as to extend forward on the forging press 51 side and have an inclined portion 16a inclined toward the inner side in the left-right direction of the forging press 51 on the tip side. The shaft 17a of the roller 17 as a moving body that moves along the fixed guide rails 16 is connected to the rotating shafts 15 on which the left and right nozzle tubes 3a and 3c are fixedly supported by the connecting rods 18. ing. The connecting rod 18 is fixed in rotation of the connecting portion on the rotating shaft 15 side, and only the connecting portion on the shaft portion 17a side of the roller 17 is rotatable. The nozzle tubes 3a and 3c may be pivotally supported on the rotation shaft 15 so that the connecting rod 18 can be directly connected to the base end side of the nozzle tubes 3a and 3c.

  As shown in FIGS. 6A and 6B, each roller 17 connected to the rotating shaft 15 by the connecting rod 18 is fixed as the support beam 11 to which the rotating shaft 15 is attached is advanced. When it moves along the guide rail 16 and enters the inclined portion 16a, the left and right connecting rods 18 start to rotate outward and stop rotating at the end point of the inclined portion 16a. Accordingly, the left and right nozzle tubes 3a and 3c supported by the respective rotation shafts 15 start to rotate so as to open to the left and right sides when the respective rollers 17 enter the inclined portion 16a, and the tip ends at a predetermined end point of the inclined portion 16a. When each roller 17 enters the straight portion in front of the inclined portion 16a, the roller 17 moves forward with a predetermined opening angle. The position of the inclined portion 16a in the front-rear direction is such that when the vicinity of the tip of the left and right nozzle tubes 3a and 3c passes the position of the left and right guide posts 52, the rollers 17 enter the inclined portion 16a and the left and right nozzle tubes 3a and 3c The roller 17 is set so as to protrude from the inclined portion 16a to the front straight portion when the tip reaches the vicinity of the center of the left and right molds 56a, 56c.

  Therefore, in this embodiment, the moving nozzle tube can be rotated using the advance / retreat of the advance / retreat mechanism 21, and a driving means for rotating the cylinder or the like can be dispensed with. For this reason, the collision with the obstruction of the moving nozzle tube due to the failure of the driving means such as the cylinder can be avoided.

  The left and right nozzle tubes 3a and 3c are bent inwardly at the tip, and as shown by the dashed line in FIG. 4, the left and right nozzle tubes 3a and 3c are bent when the rotation is completed. The front end portions extended in the front-rear direction of the forging press 51, and the plurality of nozzles 13 provided at the front end portions extend along the center line of the forged surface elongated in the front-rear direction of the left and right molds 56a, 56c, They are positioned side by side in the front-rear direction. The plurality of nozzles 13 provided at the tip of the central nozzle tube 3b are positioned side by side in the front-rear direction as they are along the center line of the forged surface of the central mold 56b. Therefore, also in this embodiment, the lubricant is sprayed not only on the central upper and lower molds 56b but also on the left and right upper and lower molds 56a and 56c from directly below or directly above, and the lubricant is uniformly applied to these forged surfaces. Can do. Further, the left and right nozzle pipes 3a, 3c that have finished injecting the lubricant are rotated in the opposite direction to those at the time of forward movement, and retreat so as to avoid the left and right guide posts 52.

  In each embodiment described above, the number of nozzle tubes in each group is one, but the number of nozzle tubes in each group may be a plurality according to the size of the forging surface of the mold. Further, the number of sets of nozzle tubes is not limited to three in the embodiment, and can be set to any number according to the number of sets of molds.

The notch front view which shows the metal mold | die lubrication apparatus of the forge press of 1st Embodiment Notched plan view of FIG. a is an enlarged plan view showing the lubricant injection mechanism of FIG. 2, and b is a cross-sectional view taken along line IIIb-IIIb of a. The notch top view which shows the die lubrication apparatus of the forge press of 2nd Embodiment Sectional view along line VV in FIG. FIGS. 4A and 4B are plan views for explaining the rotating operation of the left and right nozzle tubes in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lubricant injection mechanism 2 Support stand 3a, 3b, 3c Nozzle pipe 4 Hose 5 Nozzle 6 Bearing 7 Rotating shaft 7a Lever 8 Link 9 Bifurcated member 10 Cylinder 11 Support beam 12 Pipe unit 13 Nozzle 14 Bearing 15 Rotating shaft 16 Fixed Guide rail 16a Inclined portion 17 Roller 17a Shaft portion 18 Connecting rod 20 Cart 21 Advance / Retract mechanism 22 Motor 23 Ball screw 23a Nut 24 Base 25 Guide rail 26 Shaft member 27 Guide tube 51 Forging press 52 Guide post 53 Upper die holder 54 Bolster plate 55 Lower die holder 56a, 56b, 56c Mold

Claims (4)

  A lubricant injection mechanism having a plurality of sets of nozzle tubes is advanced and retracted from the front-rear direction of the forging press, and the plurality of sets of nozzle tubes are placed in a forging press in which a plurality of sets of upper and lower opposed molds are arranged in the left-right direction. In a die lubrication apparatus of a forging press that intrudes and injects lubricant onto the forging surfaces of predetermined molds arranged in the left-right direction from the nozzles of each set of nozzle tubes, Each set of nozzle tubes for injecting lubricant onto the forging surface is disposed at a position free from obstructions in the forward and backward direction from the front-rear direction of the forging press. A set of nozzle tubes whose positions are shifted in the left-right direction of the forging press and the center of each predetermined mold arranged in the above are used as movable nozzle tubes that can move in the left-right direction of the forging press, and the lubricant injection mechanism is advanced. These moving nozzle tubes are located at the obstacle When passed, by moving the moving nozzle tube in the lateral direction of the forging press, mold lubricating apparatus for forging press, characterized in that the position of the nozzle was as close to the center of the predetermined die.   2. A rotating means is provided that pivotally supports a proximal end side of the moving nozzle tube with a vertical rotating shaft, and moves the moving nozzle tube in the left-right direction of the forging press by rotating in the left-right direction. A die lubrication device for a forging press as described in 1.   A plurality of the moving nozzle pipes, the rotating means, a lever provided on each rotating shaft of the plurality of moving nozzle pipes, connected to a common cylinder with a link whose both end connection points are rotatable, 3. The die lubrication device for a forging press according to claim 2, wherein the rotating shafts are rotated by the reciprocating motion of the cylinder to rotate the plurality of moving nozzle tubes in the left-right direction.   The rotating means is provided with a fixed guide rail extending in the advancing / retreating direction of the moving nozzle tube and having an inclined portion inclined in the left-right direction of the forging press, and a movable body movable along the fixed guide rail is provided The moving nozzle is connected to the moving nozzle tube by a connecting rod that can rotate at a connecting point with the moving body, and the moving nozzle moves in the left-right direction at the inclined portion of the moving body that moves along the fixed guide rail. The die lubrication device for a forging press according to claim 2, wherein the tube is rotated in the left-right direction.

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