JPH0576618U - Press die structure - Google Patents

Abstract

(57) [Abstract] [Purpose] Both the first die and the second die that is moved to press the workpiece supported by the die are movable, and the second die is also movable. It is assumed that it is easy to secure the space for disposing. A first rotation selectively rotating in a first direction to abut against a front fender panel (45) and a second rotation to separate from a front fender panel (45). The front fender panel (45) is positioned so as to face the first mold (10) with the front mold (10) and the first mold (10) in contact with each other. A second die (20) for pressing the first die (10) to press the first die (10)
, Or an air cylinder (4) driven to rotate in the second direction, and a movable pressing member (30) driven to bring the second mold into an operating state of pressing the front fender panel (45). ) Is provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a press die structure in which a work piece whose position is regulated by a first die is pressed by a pressing force applied by a second die.

[0002]

[Prior Art]

 Various types of press working are applied to vehicle body panel members in a vehicle. When such press working is performed, a press device equipped with a press die according to the working mode, that is, a press die device is used. used. Although various types of press die devices have been proposed, for example, the one disclosed in Japanese Utility Model Publication No. 63-16511 supports a work piece (material). A first die (punch) that has a supporting surface that is fixedly arranged on the base, and that is arranged so as to face the supporting surface of the first die and that moves in the direction toward the first die. The second mold (movable cam) that selectively moves the mold in a direction away from the first mold is provided. Then, the work piece is supported by the support surface of the first die with the tip of the work piece protruding from the support surface, and is set at a position apart from the first die. The mold is driven by a driving member that descends from above so that the mold moves toward the first mold, and pressing force is applied to the tip portion of the workpiece that protrudes from the support surface of the first mold. Let it work. As a result, the object to be processed becomes a press-molded product whose tip is bent.

Of the first die and the second die which are arranged to face each other as described above, the first die is fixedly arranged on the base to support the workpiece, and In the case where the press die device is used, in which the second die is moved to apply the pressing force to the work piece supported by the first die to perform the press work, the work piece is processed. After the body is pressed to obtain a press-molded product, the press-molded product is moved in a direction away from the first mold and separated. As described above, when the press-molded product is separated from the press-molded product by moving the press-molded product from the first mold, inconvenience occurs from the viewpoint of shortening the working process and automation. May occur.

Therefore, the work piece is supported before the press work, and the work piece that has been subjected to the press work, that is, the first die that supports the press-formed product is movable after the press work. After the press work is applied to the work piece, the first mold is separated from the press-molded product as the first mold is separated from the press-molded product of the second mold. As a result, a press die device has been proposed, which is intended to shorten the work process and automate the work process.

[0005]

[Problems to be solved by the device]

 In such a press die apparatus, when the work is to be pressed at a plurality of locations, the first die and the second die are used in order to reduce the press work time. Sets are provided corresponding to a plurality of places to be pressed in the work piece, and the sets of the first die and the second die are used to press the plurality of places in the work piece. Will be applied collectively. At this time, in the case where both the first mold and the second mold are movable as described above in each of the plurality of sets of the first mold and the second mold, For example, a moving mechanism for the first die is attached to the second die side, so that the second die has a relatively large volume. As a result, in the case where the space between a plurality of places to be pressed in the work piece is relatively small, a plurality of second molds corresponding to a plurality of places to be pressed are provided. There is a problem that it is difficult to place them without mutual interference.

Therefore, not only the second die but also the first die can be moved when the work is to be pressed at a plurality of locations having a relatively small mutual spacing. In addition, there is a demand for the use of a press die apparatus for which the second die is downsized, but heretofore, no such press die apparatus that has been put to practical use has been found. Absent.

In view of the above point, the present invention provides a first die that supports a workpiece and a second die that is moved to press the workpiece that is supported by the first die. In addition to the second mold, the first mold is also movable under the condition that the second mold is provided, and the second mold is prevented from being imitated, and the second mold is arranged. It is an object of the present invention to provide a press die structure that can easily secure a space.

[0008]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the press die structure according to the present invention is rotatably supported and rotates in a first direction to abut on a workpiece and in a second direction. The first die for selectively performing the operation of separating from the workpiece and the workpiece that is brought into contact with the first die, and is positioned so as to face the first die, A second die which presses the work piece and presses the work piece, and to rotate the first die in the first direction or the second direction in relation to the first die. A first mold driving means for driving, a rotation restricting part for restricting the rotation of the first mold to bring the first mold into a state of restricting the position of the workpiece, and the second mold. A rotation blocking portion is provided for blocking rotation of the first die in the second direction when the workpiece is pressed, and the second die is connected to the second die in association with the second die. processing Configured second type drive means for driving so as to the operating state of pressing are provided.

[0009]

[Action]

 In the press die structure according to the present invention as described above, the first die is relatively easy to rotate in the first direction or the second direction by the first die driving means. With such a configuration, the operation of contacting the workpiece with respect to the first die and the operation of separating from the workpiece with respect to the first die are selectively performed, and the first die is moved to the second die side. It is not necessary to attach a mechanism for moving the second mold, whereby the second mold can be downsized. Furthermore, when the workpiece is pressed by the second die, the rotation blocking portion prevents the first die from rotating, and the first die surely supports the workpiece. It is assumed that the state is maintained, and by doing so, the press working on the work piece is surely and accurately performed. Therefore, it is possible to prevent the second mold from becoming large in size and to easily secure a space for disposing the second mold. In addition to the second mold, the first mold can be moved. As a result, it is possible to easily realize a state in which press working is collectively performed on a plurality of locations where the mutual spacing in the workpiece is relatively small.

[0010]

【Example】

 1 and 2 show a press die apparatus to which an example of a press die structure according to the present invention is applied.

The press die apparatus shown in FIGS. 1 and 2 is disposed on a base 2 provided with a guide portion 2A and a workpiece receiving base 2B, and is a rod that is configured to move back and forth. An air cylinder 4 having a portion 4A, a first die 10 rotatably installed and connected to a rod portion 4A of the air cylinder 4, a fixed stopper portion member 5 for limiting the rotation of the first die 10, The movable stopper member 6, which selectively takes the state in which the rotation of the first die 10 is blocked, the second die 20 slidably arranged on the guide portion 2A provided on the base 2, and the second die 20 A movable pressing member 30 for moving the mold 20 is configured as a main element, and a work piece supported by a work piece receiving base 2B provided on the base 2 is subjected to bending work.

The air cylinder 4 operates so as to make the rod portion 4A take an extended state as shown by a solid line in FIG. 1 and draws the rod portion 4A as shown by a chain line in FIG. It is said that the operation of causing the operation is selectively performed. The first die 10 is located between the air cylinder 4 and the second die 20, and has a pressure receiving arm portion 11A having a bent shape and protruding toward the second die 20 side. A main body portion 11 axially attached to the base 2 and a connecting arm portion 13 protruding from the main body portion 11 toward the air cylinder 4 side and having a tip end rotatably connected to a rod portion 4A of the air cylinder 4. And a stopper receiving portion 11B protruding upward is provided in a portion of the main body portion 11 close to the connecting arm portion 13.

The main body 11 of the first mold 10 is axially attached to the base 2 by a bolt 15 that penetrates the first mold 10 and is screwed into the base 2. The main body 11 is in a horizontal plane with the bolt 15 as a rotation center axis. It is supposed to be able to rotate with. Then, when the rod portion 4A of the air cylinder 4 shifts from the retracted state to the extended state, the rod portion 4A of the air cylinder 4 is rotated in the direction indicated by the arrow A (direction A), and the rod portion 4A of the air cylinder 4 extends. When transitioning from the state to the retracted state, it is rotated in the direction indicated by arrow B in FIG. 1 (direction B).

A fixed stopper member 5 is attached to the base 2 to control the range of movement of the first die 10 in the A direction by the stopper portion 5A. The fixed stopper member 5 is disposed close to the side surface portion 11a of the main body portion 11 of the first die 10 which is spaced apart from the air cylinder 4, and the first die 10 is rotated in the A direction. When the position shown by the solid line in FIG. 1 is taken, the stopper portion 5A is brought into contact with the side surface portion 11a of the main body portion 11 of the first die 10 to rotate the first die 10 1. Limit the movement and allow the first mold 10 to assume the position indicated by the solid line. Further, the stopper portion 5A of the fixed stopper member 5 and the pressure receiving arm portion 11A of the main body portion 11 of the first die 10 are fixed when the position of the first die 10 is restricted by the fixed stopper member 5. The side surfaces 5a and 11b have a predetermined separation distance and are opposed to each other, and the side surfaces 5a and 11b are the side surfaces 11b when the first mold 10 is rotated in the B direction. Comes into contact with the side surface portion 5a and restricts the rotation of the first mold 10 to cause the first mold 10 to assume the position shown by the alternate long and short dash line in FIG.

The stopper receiving portion 11 B provided on the main body portion 11 of the first mold 10 has a side surface portion facing the side surface portion 11 a of the main body portion 11, and the movable stopper member 6 is selectively provided on the side surface portion. The metal member 17 to be brought into contact with is attached. The movable stopper member 6 is attached to the elevating slider mechanism 40 arranged above the base 2. As the elevating slider mechanism 40 descends, the movable stopper member 6 is drawn from the upper position indicated by the one-dot chain line in FIG. It is lowered to the lower position shown. When the movable stopper member 6 takes the lower position, the metal is mounted on the stopper receiving portion 11B provided on the main body portion 11 of the first mold 10 whose position is regulated by the fixed stopper member 5. Abutment is made via the member 17. A movable pressing member 30 for moving the second die 20 is also attached to the elevating slider mechanism 40 to which the movable stopper member 6 is attached, and the lower surface portion 30a of the movable pressing member 30 is an inclined surface portion. There is.

The second die 20 has a straight line formed on the guide portion 2A of the base 2 with the end portion 20a facing the tip portion 11c of the pressure receiving arm portion 11A of the main body portion 11 of the first die 10. It is arranged so as to be engaged with the groove 8. A roller 22 is rotatably attached to an upper portion of the end 20b of the second mold 20, and a linear recess 8a provided at the bottom of the groove 8 is attached to a lower portion of the end 20b. An engaging portion 20A that projects inward is provided. Then, the second die 20 is urged between the engagement portion 20A and the recess 8a in a direction in which the second die 20 is separated from the pressure receiving arm portion 11A in the main body portion 11 of the first die 10, and the second die 20 is provided with a spring member 24 having a position shown by a solid line in FIG. Such a second die 20 is moved in a direction against the biasing force of the spring member 24 by bringing the lower surface portion 30a of the movable pressing member 30 into contact with the roller 22 attached thereto. ..

The movable pressing member 30 is lowered from the upper position shown by the one-dot chain line in FIG. 2 to the lower position shown by the two-dot chain line in accordance with the lowering of the elevating slider mechanism 40, and from the upper position. During lowering to the lower position, as shown by the solid line in FIG. 2, the lower surface portion 30a abuts on the roller 22 attached to the second die 20, and the second die 20 is moved to the spring member 24. The inside of the groove 8 is moved in the direction of approaching the pressure receiving arm 11A in the main body 11 of the first mold 10 against the biasing force of.

On the other hand, the workpiece placed on the workpiece pedestal 2B provided on the base 2 is, for example, a front fender panel 45 that constitutes the vehicle body of the vehicle as shown in FIG. The front fender panel 45 is provided with a protruding portion 46a forming a front end portion of the vehicle body on a side surface portion 46 forming a side portion of the vehicle body, and a curved portion 46b extending downward from the protruding portion 46a to which the combination lamp is attached. A bracket 47 is provided so as to be projected in the vehicle width direction and positioned close to the projecting portion 46a. The front fender panel 45 is mounted on the workpiece receiving base 2B by a clamp mechanism (not shown), and is pressed on the protruding portion 46a and the bracket 47 positioned close to the protruding portion 46a. Will be given. The press die apparatus to which the example of the press die structure according to the present invention is applied is a press die apparatus in which the bracket 47 of the front fender panel 45 has a desired bending angle with respect to the curved portion 46b. The projecting portion 46a of the front feeder panel 45 is subjected to a predetermined press working by a press die device having a known configuration (not shown), and has such a known configuration. The press die apparatus is provided with a die that is movably arranged to support the workpiece and a die that is moved to apply a pressing force to the workpiece.

In the front fender panel 45, the movable stopper member 6 and the movable pressing member 30 are in the upper position, and the first die 10 is in the position-regulated position shown by the alternate long and short dash line in FIG. Further, as shown in FIG. 4, while the second die 20 is in the position regulated position shown by the solid line in FIG. It is supposed to be supported by the workpiece receiving base 2B of the base 2 while being positioned between the tip portion 11c of the arm portion 11A and the end portion 20a of the second die 20. A bracket 47 is attached to each of the tip portion 11c of the pressure receiving arm portion 11A and the end portion 20a of the second die 20 in the first die 10 that is made to face each other by sandwiching the bracket 47 of the front feeder panel 45. Inclined concave portions and inclined convex portions having a desired bending angle are provided.

When the front fender panel 45 is brought into a state of being supported by the workpiece support 2B, the air cylinder 4 is put into an operating state in which the rod 4A in the retracted state is brought into an extended state, and at the same time, the lifting slider is moved. The mechanism 40 is placed in an operation state in which the mechanism 40 moves downward together with the movable stopper member 6 and the movable pressing member 30 which are located at the upper position. As a result, the first die 10 is rotated in the A direction, and the tip portion 11c of the pressure receiving arm portion 11A is brought into contact with the bracket 47. The position of the first die 10 is regulated by the fixed stopper member 5 to the position shown by the solid line in FIG. 1 under the condition that the tip portion 11c of the pressure receiving arm portion 11A is in contact with the bracket 47. The bracket 47 is supported by the pressure receiving arm portion 11A. In addition, the movable stopper member 6 placed in the lower position by the lowering of the elevating and lowering slider mechanism 40 has the metal member 17 mounted on the stopper receiving portion 11B on the first die 10 supporting the bracket 47. It is made to contact via.

Further, since the movable pressing member 30 that descends as the lifting slider mechanism 40 descends contacts the roller 22 of the second mold 20, the second mold 20 acts on the spring force of the spring member 24. Against this, the inside of the groove portion 8 is moved in the direction close to the pressure receiving arm portion 11A of the first die 10, so that the second die 20 is moved to the end portion as shown by the chain line in FIG. 20a is brought into contact with the bracket 47 supported by the first die 10 to press the bracket 47 in a direction against the biasing force of the spring member 24.

When the second die 20 presses the bracket 47 in a direction against the biasing force of the spring member 24, the first die 10 that supports the bracket 47 by the pressure receiving arm portion 11A Although a pressing force for rotating it in the B direction is applied, the movable stopper member 6 that abuts the first mold 10 via the metal member 17 causes the first mold 10 to move in the B direction. Rotation is prevented so that the first mold 10 maintains the position shown by the solid line in FIG. 1 against the pressing force exerted by the second mold 20 via the bracket 47. It is assumed that 47 is supported by the pressure receiving arm portion 11A. As described above, when the second die 20 is in the state of pressing the bracket 47, the first die 10 surely supports the bracket 47 by the pressure receiving arm portion 11A, so that the bracket 47 is held. Is bent accurately and reliably by the inclined concave portion provided on the tip end portion 11c of the pressure receiving arm portion 11A of the first die 10 and the inclined convex portion provided on the end portion 20a of the second die 20. The press processing is performed so that the curved portion 46b of the front fender panel 45 has a desired bending angle.

When the press working on the bracket 47 provided on the front fender panel 45 is completed in this way, the elevating slider mechanism 40 ascends together with the movable stopper member 6 and the movable pressing member 30 which are in the lower position. In addition to being placed in the operating state, the air cylinder 4 is placed in the operating state in which the rod portion 4A, which is in the retracted state, is in the extended state. As a result, the contact state of the movable stopper member 6 for blocking the rotation of the first die 10 with respect to the first die 10 is released, and the movable pressing member 30 in the second die 20 is released. When the contact state with the roller 22 is released, the movable stopper member 6 and the movable pressing member 30 are in the upper position. As a result, the first die 10 is rotated in the direction B by being released from the contact state with the movable stopper member 6, and is separated from the bracket 47, and the second die 10 is also separated. 20 is separated from the bracket 47 by the urging force of the spring member 24, and the first mold 10 and the second mold 20 are placed in the positions shown by the one-dot chain line and the solid line in FIG. 1, respectively. It will be.

As described above, the first mold 10 selectively rotates the air cylinder 4 in the A direction for supporting the bracket 47 and in the B direction for releasing the support of the bracket 47. In this case, it is not necessary to attach a mechanism for rotating the first die 10 to the second die 20 side, and it is possible to reduce the size of the second die 20. Will be done. As a result, the second die 20 can be arranged without interfering with a press die device that presses the protruding portion 46a of the front fender panel 45 located near the bracket 47. As a result, the bracket 47 of the front fender panel 45 and the projecting portion 46a located near the bracket 47 can be collectively pressed.

[0025]

[Effect of the device]

 As is apparent from the above description, according to the press die structure of the present invention, the first die can be rotated in the first direction or the second direction by the first die driving means. With the relatively simple structure described above, the operation of contacting and supporting the work piece of the first die and the operation of separating it from the work piece are selectively performed. Therefore, it is not necessary to attach a mechanism for moving the first die to the second die side, whereby the second die can be miniaturized. When the work piece is pressed, the first die is prevented from rotating by the rotation preventing portion and maintains the state of reliably supporting the work piece. As a result, the press work for the work piece is surely performed with high accuracy. Therefore, it is possible to move the first mold in addition to the second mold while avoiding imitation of upsizing of the second mold and making it easy to secure a space for disposing the second mold. As a result, it is possible to easily realize a state in which the press working is collectively performed on a plurality of places where the mutual spacing in the work piece is relatively small.

[Brief description of drawings]

FIG. 1 is a plan view showing a press die apparatus to which an example of a press die structure according to the present invention is applied.

FIG. 2 is a side view including a partial cross section of the example shown in FIG.

FIG. 3 is a perspective view showing an example of a work piece that is press-worked by the example shown in FIG.

FIG. 4 is a side view including a partial cross section of the example shown in FIG.

[Explanation of symbols]

 2 Base 4 Air Cylinder 5 Fixed Stopper Member 6 Movable Stopper Member 10 First Mold 11 Main Body 11A Pressure Receiving Arm Part 20 Second Mold 30 Movable Pressing Member 45 Front Fender Panel 47 Bracket

Claims (1)

[Scope of utility model registration request] 1. An apparatus which is rotatably supported and selectively performs an operation of rotating in a first direction to abut a workpiece and an operation of rotating in a second direction to separate from the workpiece. First die, first die driving means for driving the first die to rotate in the first direction or the second direction, and limiting rotation of the first die. Then, the rotation limiting portion that causes the first die to positionally control the workpiece, and the workpiece is sandwiched while the workpiece is positionally regulated by the first die. And a second die for pressing the workpiece to press the workpiece, and an operation of pressing the second die against the workpiece. Second die driving means for driving the first die and the second die of the first die when the second die presses the workpiece. Press die structure constructed and a rotation preventing portion for preventing the rotation of the.