JP5598440B2 - Punching die device, bending die device, and combination of punching die device and bending die device - Google Patents

Description

  The present invention relates to a punching die device, a bending die device, a punching die device, and a bending die device that can perform punching and bending on products having different product lengths.

  Conventionally, products having different product lengths have been press-molded. For example, in the case of a workpiece with a short product length (hereinafter referred to as a short workpiece), all of the short workpiece is processed by a die device for punching the workpiece after drawing by drawing. The peripheral edge portion is punched into a flange shape, and the remaining flange-shaped peripheral edge portion is bent by the next bending die apparatus.

  On the other hand, in the case of a workpiece having a long product length (hereinafter referred to as a long workpiece), a mold for punching a workpiece having a long product length from the long workpiece after drawing by drawing. The entire peripheral portion of the long workpiece is punched into a flange shape by a punching die device having an upper die and a lower die longer than the device. Then, the flange-like entire peripheral portion remaining after the punching is bent by a bending die apparatus having a longer upper die and lower die than a die apparatus for bending the short workpiece. .

As described above, conventionally, in order to ensure the quality of the parting-out of the product, the entire peripheral edge is bent and then the entire peripheral edge is bent.
In Patent Document 1, a fixed part and a movable part are provided in an upper mold and a lower mold, respectively, and the position of the movable part is adjusted according to a workpiece having a different product length, thereby bending the workpiece. Molding is performed.

  Patent Document 2 proposes a cross member manufacturing apparatus capable of adjusting the length by making it possible to separate at least one of a mold and a punch and disposing a shim between the separated members. ing. In Patent Document 2, a shim is inserted between separated members, and the member separated from the shim is held by a threaded rod.

JP-A-6-47445 Special table 2009-509774 gazette

  Conventionally, short work pieces and long work pieces are respectively punched by a die device dedicated to short work pieces and long work pieces having a length corresponding to each product length. I have to. Also, conventionally, short work pieces and long work pieces are respectively provided with a die device for bending work dedicated to short work pieces and long work pieces each having a length corresponding to each product length. Bending is performed.

  As described above, conventionally, in order to ensure the quality of product parting, the entire peripheral edge is bent after the entire peripheral edge is removed. For this reason, conventionally, if the product length is different, it is necessary to prepare a dedicated mold apparatus in the punching process and the bending process.

  In patent document 1, it is the technique of the bending shaping | molding which adjusted the position of a movable part according to the bending location, and how to carry out a punching process and a bending process with respect to the product from which a product length differs. There is no disclosure of what to do.

Patent Document 2 is based on the premise that a shim is used, and the separated member and the shim are attached by a threaded rod, so that there is a problem that the length adjustment work becomes complicated.
An object of the present invention is to provide a combination of a punching die device and a bending die device capable of performing punching and bending on both short workpieces and long workpieces.

Another object of the present invention is to provide a punching die device that can be used in a combination of the punching die device and the bending die device.
Another object of the present invention is to provide a bending mold apparatus that can be used in a combination of the punching mold apparatus and the bending mold apparatus.

  In order to achieve the above object, the invention according to claim 1 includes a first punching upper die and a first punching lower die for punching a workpiece edge on one end side in the workpiece length direction, and the first punching die. The upper die and the first lower lower die are provided so as to be movable to a proximal first proximal position and a distal first distal position in the workpiece length direction, and the other end of the workpiece in the workpiece length direction. A second punching upper die and a second punching lower die for punching the edge on the part side, and at least one of the first punching upper die and the first punching lower die, and the second punching upper die and the second punching lower die On both sides along the workpiece length direction of either one of the upper and lower molds, there is provided a first punching portion that performs bending simultaneously with the punching on the edge of the workpiece along the workpiece length direction. And when at least the second upper die and the second lower die are located at the first distal position. When performing the processing with respect to the workpiece it has, in the edge of the workpiece along the workpiece longitudinal direction is summarized as punching mold apparatus characterized by leaving a portion punching bending is not performed.

  According to a second aspect of the present invention, in the first aspect, when the second upper pulling die and the second lower pulling die are respectively located at the first distal position and the first proximal position, the first holding is performed. Means are provided.

  According to a third aspect of the present invention, there is provided a first bending upper mold and a first bending lower mold for bending an edge of a workpiece on one end side in the workpiece length direction, and the first bending upper mold and the first bending lower mold. The second workpiece is provided so as to be movable to a second proximal position and a distal second distal position which are proximal in the workpiece length direction and bends the edge of the workpiece on the other end side in the workpiece length direction. A second bending upper mold and a second bending lower mold, and along the work length direction of at least one of the first bending upper mold and the first bending lower mold, and the second bending upper mold and the second bending lower mold. The both sides are provided so as to overlap with a part of the edge that was punched and bent in the workpiece in the previous process, and at the same time as the punching for the edge that was not punched and bent in the workpiece. A second punched and bent part for bending is provided. It is summarized as bending molds apparatus according to claim.

  According to a fourth aspect of the present invention, in the third aspect, when the second bending upper mold and the second bending lower mold are positioned at the second distal position and the second proximal position, respectively, the second holding is performed. Means are provided.

  According to a fifth aspect of the present invention, in the third or fourth aspect of the invention, when the second upper bending mold and the second lower bending mold are positioned at the second distal position in the second drafted portion. In addition, when the second upper bending mold and the second lower bending mold are located at the second proximal position, the movable bending is not performed. It is characterized by comprising a bending blade.

  The invention of claim 6 is any one of claims 3 to 5 in which bending processing is performed on the punching die device of claim 1 or claim 2 and the workpiece processed by the punching die device. The gist is a combination of a punching die device and a bending die device characterized by combining the bending die device according to claim 1.

According to the first aspect of the present invention, it is possible to provide a punching die apparatus capable of performing punching processing on both a short workpiece and a long workpiece.
According to the second aspect of the present invention, when the short workpiece and the long workpiece are punched, the first holding means can stably perform the punching.

According to the invention of claim 3, it is possible to provide a bending mold apparatus that can perform bending on both of a short workpiece and a long workpiece.
According to the invention of claim 4, when the short workpiece and the long workpiece are bent, the second holding means can stably perform the bending.

According to the fifth aspect of the present invention, it is possible to selectively perform the bending process using the movable bending blade in accordance with the short workpiece and the long workpiece.
According to the sixth aspect of the present invention, it is possible to provide a combination of a punching die device and a bending die device capable of performing punching and bending on both the short workpiece and the long workpiece.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic side view of a punching die device at the time of mold opening for processing a long workpiece according to an embodiment of the present invention. FIG. 3 is a schematic side view of a punching die apparatus at the time of mold clamping for processing a long workpiece. The schematic side view of the bending die apparatus at the time of the mold opening which processed the long workpiece. The schematic side view of the bending die apparatus at the time of the mold clamping which made the long workpiece to be processed. The schematic side view of the die-die apparatus at the time of the mold opening which made the short workpiece into the process object. FIG. 3 is a schematic side view of a punching die apparatus at the time of mold clamping for processing a short workpiece. The schematic side view of the bending die apparatus at the time of the mold opening which made the short workpiece to be processed. The schematic side view of the bending die apparatus at the time of the mold clamping which made the short workpiece into the process object. (A) is a plan view of a first punching lower die of the punching die device and a second punching lower die located at the first distal position when processing a long workpiece, and (b) is a bending die. The top view of the 1st bending lower type | mold of the apparatus, and the 2nd bending lower type | mold located in the 2nd distal position when processing a long workpiece. (A) is a plan view of a first punching lower die of the punching die device and a second punching lower die located at a first proximal position when processing a short workpiece, and (b) is a bending die. The top view of the 2nd bending lower type | mold located in the 2nd proximal position when processing the 1st bending lower type | mold of an apparatus and a short workpiece. (A) is explanatory drawing which shows the effect | action of the upper cutting blade and lower punching blade of a punching die apparatus, (b) is explanatory drawing which shows the effect | action of the upper bending blade and lower bending blade of a bending die apparatus. (A) is explanatory drawing which shows the effect | action of the upper bending blade and lower punching blade of a punching die apparatus, (b) is explanatory drawing which shows the effect | action of the upper bending blade and lower bending blade of a bending die apparatus. (A) is explanatory drawing which shows the effect | action of the upper bending blade and lower bending blade of a cutting die apparatus, (b) is explanatory drawing which shows the effect | action of the pad and lower bending blade of a bending die apparatus. (A) is an explanatory view when the movable upper bending blade of the bending die apparatus is used when processing a long workpiece, and (b) is a bending when processing a short workpiece. Explanatory drawing in the case of being located in the non-use position of the movable top bending blade of a metal mold apparatus. The perspective view of the short to-be-processed goods provided to a punching die apparatus. The perspective view of the short to-be-processed product processed with the punching die apparatus. The perspective view of the short workpiece processed by the bending die apparatus. The perspective view of the long to-be-processed product provided to a punching die apparatus. The perspective view of the long to-be-processed product processed with the punching die apparatus. The perspective view of the long workpiece processed with the bending die apparatus.

Hereinafter, an embodiment of a combination of a punching die device and a bending die device embodying the present invention will be described with reference to the drawings.
A punching die apparatus 10 shown in FIG. 1 is mainly for punching a peripheral portion of a workpiece that has been drawn in the previous process. A bending mold apparatus 100 shown in FIG. 3 is for bending a peripheral edge of a workpiece to be punched by the punching mold apparatus 10. The combination of the punching die device and the bending die device of the present embodiment is a combination of the punching die device 10 and the second punching upper die 50.

(1. Die mold device 10)
First, the punching die apparatus 10 is demonstrated with reference to FIG.1, FIG.2, FIG.5, FIG.6 and FIGS.

(1.1. Lower mold of the punching die device 10)
The lower mold of the punching die device 10 includes a first punching lower mold 20 and a second punching lower mold 40. Details will be described below.

As shown in FIGS. 1 and 5, a first lower die 20 is integrally provided on the lower die support base 11 fixed to the floor FL.
On the lower die support base 11, a second lower die 40 is provided on the upper surface adjacent to the first lower die 20 so as to be able to approach and separate from the first lower die 20 by the guide portion 13. . The guide portion 13 is composed of a guide rail provided on the upper surface of the lower mold support base 11. A slider 40a is provided on the lower surface of the second lower lower mold 40 and is slidably fitted to the guide rail.

  In the lower mold support base 11, a cylinder device 15 is provided in a storage space 14 provided below the first extraction lower mold 20. The cylinder device 15 is provided as a drive mechanism for moving the second lower die 40 close to and away from the first lower die 20. The cylinder device 15 includes a hydraulic cylinder, a pneumatic cylinder, or an electric cylinder. The rod 16 of the cylinder device 15 is connected to the second punching lower mold 40.

  By driving the cylinder device 15, the second lower die 40 is moved to the first proximal position shown in FIGS. 5 and 6 with respect to the first lower die 20 and the distal position shown in FIGS. 1 and 2. In any of the first distal positions.

  As shown in FIGS. 1 and 2, an end block 17 is provided on the side of the lower mold support base 11 opposite to the first punched lower mold 20. In the end block 17, the abutting portion 40 b on the side surface of the second extracting lower die 40 opposite to the first extracting lower die 20 contacts when the second extracting lower die 40 is located at the first distal position.

  In the lower mold support base 11, an end block 18 is provided between the second punched lower mold 40 and the first punched lower mold 20. The end block 18 contacts the contact portion 40c on the side surface of the second extraction lower mold 40 on the side of the first extraction lower mold 20 when the second extraction lower mold 40 is located at the first proximal position.

  As shown in FIGS. 1 and 2, a pair of movable positioning blocks B <b> 1 and B <b> 2 fixed to the floor FL are disposed in the internal space below the lower mold support base 11. The positioning block B1 is located closer to the end block 18 than the positioning block B2. The block B2 is located closer to the end block 17 than the positioning block B1. Both positioning blocks B1, B2 have cylinder devices S1, S2 that drive the rods L1, L2 up and down, and positioning members La, Lb provided at the tips of the rods L1, L2. The cylinder devices S1 and S2 are hydraulic cylinders, pneumatic cylinders, or electric cylinders.

  The cylinder device S1 of the positioning block B1 moves the rod L1 up and down, thereby bringing the positioning member La into contact with the contact portion 40c of the second extraction lower die 40 and restricting the movement of the second extraction lower die 40. It is possible to locate the contact position (see FIG. 1) and the separation position (see FIG. 5) that separates from the second extraction lower mold 40 without contacting the contact portion 40c of the second extraction lower mold 40. ing.

  As shown in FIGS. 1 and 2, the positioning block B <b> 1 is configured so that the positioning member La is positioned at the contact position when the second lower lower mold 40 is positioned at the first distal position. The second lower die 40 is held in contact with the end block 17 in cooperation with the end block 17 so as to be held at the first distal position.

The positioning block B1 and the end block 17 correspond to first holding means for holding the second lower die 40 in the first distal position.
The cylinder device S2 of the positioning block B2 moves the rod L2 up and down to insert the positioning member Lb into the through hole 40e in the lower part of the second lower die 40 and is provided on the inner surface of the through hole 40e. A contact position (see FIG. 5) that contacts the 40d and restricts the movement of the second extraction lower mold 40, and a separation position (see FIG. 5) that leaves the through hole 40e and separates from the second extraction lower mold 40. 1)).

  As shown in FIGS. 5 and 6, the positioning block B2 is configured such that when the second lower punching die 40 is located at the first proximal position, the positioning member Lb is located at the contact position, The second lower die 40 is brought into contact with the abutting portion 40d provided at the lower portion of the lower die 40 and is held in cooperation with the end block 18 so as to be held at the first proximal position.

The positioning block B2 and the end block 18 correspond to first holding means for holding the second lower die 40 in the first proximal position.
(1.2. Upper mold of punching die device 10)
Next, the upper mold of the punching die apparatus 10 will be described.

  As shown in FIG. 1, an upper mold support base 12 that is suspended and supported by a pressing device (not shown) is disposed above the lower mold support base 11, and the first mold lower mold 20 is connected to the upper mold support base 12. A first upper die 30 is provided at the corresponding part. The configuration of the blades and the like provided in the first punching lower mold 20 and the first punching upper mold 30 will be described later.

  A pad 33 is disposed above the first lower lower mold 20. The pad 33 is suspended and supported via a pressure bolt (not shown) that is slidably passed through the upper mold support base 12 in the vertical direction. The upper head portion of the pressure bolt can be locked to the upper mold support base 12, and in this locked state, the pad 33 is supported by the upper mold as shown in FIGS. Support at the lowest position relative to the base 12. A coil spring (not shown) that urges the pad 33 downward is wound around the pressure bolt.

  The surface shape of the lower surface of the pad 33 is a three-dimensional shape that matches the upper surface shape of the portion facing the upper surface of the first punching lower mold 20 in each of the long workpiece WL and the short workpiece WS.

  On the lower surface of the upper die support base 12 positioned above the second die lower die 40 and adjacent to the first die upper die 30, the second die upper die 50 is guided by the guide portion 19 to the first die upper die. The upper mold 30 is provided so as to be able to approach and separate. The guide portion 19 includes a guide rail provided on the lower surface of the upper mold support base 12. A slider 50a is provided on the upper surface of the second upper die 50 and is slidably fitted to the guide rail.

  In the upper mold support base 12, a cylinder device 35 is provided in a storage space 34 provided above the pad 33. The cylinder device 35 is provided as a drive mechanism for moving the second extraction upper die 50 toward and away from the first extraction upper die 30. The cylinder device 35 includes a hydraulic cylinder, a pneumatic cylinder, or an electric cylinder. The rod 36 of the cylinder device 35 is connected to the second extraction upper die 50.

  By driving the cylinder device 35, the second upper die 50 is moved to the first proximal position shown in FIGS. 5 and 6 with respect to the first upper die 30 and the distal portion shown in FIGS. 1 and 2. In any of the first distal positions. The cylinder device 35 and the cylinder device 15 are configured to move the second extraction upper die 50 and the second extraction lower die 40 to the first proximal position or the first distal position in synchronization.

  As shown in FIGS. 1 and 2, an end block 37 is provided on the side of the upper mold support base 12 opposite to the first punched upper mold 30. In the end block 37, when the second upper die 50 is located at the first distal position, the contact portion 50b on the side surface of the second upper die 50 opposite to the first upper die 30 contacts.

  In the upper mold support base 12, an end block 38 is provided between the second blank upper mold 50 and the first blank upper mold 30. When the second upper die 50 is positioned at the first proximal position, the end block 38 comes into contact with a contact portion 50c on the side surface of the second upper die 50 facing the first upper die 30.

  As shown in FIGS. 1 and 2, a pair of movable positioning blocks B <b> 3 and B <b> 4 fixed to the upper mold support base 12 are arranged in the internal space below the upper mold support base 12. The positioning block B3 is located closer to the end block 38 than the positioning block B4. The block B4 is located closer to the end block 37 than the positioning block B3.

  Both positioning blocks B3, B4 have cylinder devices S3, S4 that drive the rods L3, L4 up and down, and positioning members Lc, Ld provided at the tips of the rods L3, L4. The cylinder devices S3 and S4 are hydraulic cylinders, pneumatic cylinders, or electric cylinders.

  The cylinder device S3 of the positioning block B3 moves the rod L3 up and down to insert the positioning member Lc into the through hole 50d in the upper part of the second extraction upper die 50 and is provided on the inner surface of the through hole 50d. A contact position (see FIG. 1) for contacting the second extraction upper die 50 and a separation position (see FIG. 1) for leaving the through hole 50d and separating from the second extraction upper die 50. 5)).

  As shown in FIGS. 1 and 2, the positioning block B3 moves the positioning member Lc to the contact position when the second upper die 50 is positioned at the first distal position. The second upper die 50 is brought into contact with 50e and held in cooperation with the end block 37 so as to be held at the first distal position.

The positioning block B3 and the end block 37 correspond to first holding means for holding the second extraction upper die 50 at the first distal position.
The cylinder device S4 of the positioning block B4 moves the rod L4 up and down, thereby bringing the positioning member Ld into contact with the contact portion 50b of the second extraction upper die 50 and restricting the movement of the second extraction upper die 50. It is possible to locate the contact position and a separation position away from the second upper die 50. Then, as shown in FIGS. 5 and 6, the positioning block B4 is configured such that when the second upper die 50 is positioned at the first proximal position, the positioning member Ld is positioned at the contact position, The second upper die 50 is brought into contact with the abutment portion 50b of the upper die 50 and is held in the first proximal position by being sandwiched in cooperation with the end block 38.

The positioning block B4 and the end block 38 correspond to first holding means for holding the second extraction upper die 50 in the first proximal position.
A pad 43 is disposed above the second lower lower mold 40. The pad 43 is suspended and supported via a pressure bolt (not shown) that is slidably passed through the upper wall of the second extraction upper die 50 in the vertical direction. The upper head portion of the pressure bolt can be locked to the upper mold support base 12, and in this locked state, the pad 43 is removed as shown in FIGS. The upper mold 50 is supported at the lowest position. A coil spring (not shown) that urges the pad 43 downward is wound around the pressure bolt.

  The surface shape of the lower surface of the pad 43 is a three-dimensional shape that matches the upper surface shape of the portion facing the upper surface of the second punching lower mold 40 in each of the long workpiece WL and the short workpiece WS.

  As shown in FIGS. 1 and 5, guide pins 39 and 59 protrude downward from the first punching upper die 30 and the second punching upper die 50. On the other hand, the lower mold support base 11 and the second lower lower mold 40 are provided with guide holes 29 and 49 having guide bushes for guiding the guide pins 39 and 59.

(1.3. Various types of blades for upper and lower molds of punching die equipment)
Next, referring to FIG. 9A, FIG. 10A, FIG. 11A, FIG. 12A, and FIG. 13A, the first lower lower mold 20 and the first upper upper mold 30 are referred to. Various blades of the second punching lower die 40 and the second punching upper die 50 will be described. The outer shapes of the first lower die 20 and the second lower die 40 in FIGS. 9A and 10A are partially deformed and illustrated for convenience of explanation, different from the actual dimensions. Please note that

  In the present embodiment, the second punching lower die 40 is formed longer in the workpiece length direction than the first punching lower die 20, and accordingly, the second punching lower die 30 than the first punching upper die 30. The upper die 50 is formed longer in the workpiece length direction.

In this detailed description, the short workpiece WS and the long workpiece WL may be referred to as workpieces.
As shown in FIGS. 9 (a) and 10 (a), the first punching lower mold 20 has one end in the workpiece length direction (the right end in the figure) formed in a laterally convex shape, As shown in FIG. 11A, a lower cutting blade 21 is formed for punching an edge portion of one end of the workpiece in the workpiece length direction (hereinafter referred to as a first end portion in the present embodiment). Yes. 9 (a) and 10 (a), in the outline of the first punching lower mold 20, the portion where the lower punching blade 21 is formed is drawn with a solid line thicker than the other outlines, and the lower punching blade 21 is drawn. Other outlines where no is formed are drawn with thin lines.

  Further, the upper surface of the first lower die 20 is a three-dimensional shape 22 that matches a part of the surface shape of the long workpiece WL and the short workpiece WS provided to the first lower die 20 respectively. Is formed. That is, the three-dimensional shape 22 is a part of the surface shape drawn in the region on the other end portion (hereinafter referred to as the second end portion) side in the workpiece length direction in the long workpiece WL and the short workpiece WS. Match.

The three-dimensional shape 22 has a common shape for the long workpiece WL and the short workpiece WS.
Further, as shown in FIG. 11A, one end (right end in the figure) of the first punching upper die 30 in the workpiece length direction is used for punching the workpiece in cooperation with the lower punching blade 21. An upper cutting blade 31 is formed.

  On the other hand, the second punching lower die 40 is formed such that one end (left end in the figure) in the workpiece length direction is formed in a laterally convex shape, and the upper portion is formed by punching the edge of the workpiece on the second end side in the workpiece length direction. It is formed in the lower cutting blade 41 for doing. In FIG. 11A, for convenience of explanation, the second punching upper die 50, the pad 43, and the second punching lower die 40 are illustrated as being horizontally reversed.

  In FIG. 9A and FIG. 10A, in the outline of the second lower die 40, a portion where the lower punch 41 is formed is drawn with a solid line thicker than the other outer lines, and the lower punch 41 is drawn. And the other outline in which the long hole 44 mentioned later is not formed is drawn with the thin line.

  In addition, the upper surface of the second lower die 40 has a three-dimensional shape 42 that matches a part of the surface shape of each of the long workpiece WL and the short workpiece WS provided to the second lower die 40. Is formed. That is, the three-dimensional shape 42 is narrowed down in the center part region in the workpiece length direction and the second end side region 180 degrees opposite to the first end side in the long workpiece WL and the short workpiece WS. Matches part of the machined surface shape. The portion of the three-dimensional shape 42 has a common shape for the long workpiece WL and the short workpiece WS.

  In addition, as shown in FIGS. 1 and 11A, the workpiece is removed at the other end (left end in the drawing) of the second upper die 50 in cooperation with the upper punching blade 31. An upper cutting blade 51 for processing is formed.

  As shown in FIG. 13A, long holes 44 are respectively formed along the same direction in a part of both sides along the work length direction of the second lower lower mold 40 and the long holes 44 are formed. Lower curved blades 45 are respectively formed on the edge side where the three-dimensional shape 42 is formed. As shown in FIG. 9A and FIG. 13A, the long hole 44 is opened at the end on the first punching lower die 20 side and at the end opposite to the first punching lower die 20. Is blocked.

  On the other hand, in the second punched upper die 50, a part of both side portions along the workpiece length direction cooperates with the lower curved blade 45 to form the long workpiece WL and the short workpiece WS as workpieces. An upper bending blade 52 is formed on the edge along the workpiece length direction at the same time as the punching, that is, the upper bending blade 52 for performing the bending. The lower bending blade 45 and the upper cutting blade 52 constitute a first punching and bending portion.

  FIG. 9A shows the long workpiece WL when the long workpiece WL is placed when the second lower die 40 is located at the first distal position. The outline of the outer shape is shown. As shown in the figure, the edge along the workpiece length direction of the long workpiece WL is arranged so as to coincide with the edges of the first punching lower mold 20 and the second punching lower mold 40.

  When punching is performed in this state, as shown in FIG. 9 (a), the left and right outer portions from the thick solid line showing the lower punching blade 41 are punched into scrap, and in FIG. 9 (a), The hatched portion is punched and bent by the first punching and bending portion.

(For parts that are not punched or bent in the long workpiece WL)
Further, as shown in FIG. 12A, regions A and B between the long hole 44 and the lower punching blade 41 shown in FIG. 9A are punched and punched in the long workpiece WL. Is the part that is not performed.

  Further, as shown in FIG. 9 (a), a belt-like region C opposite to the clearance formed between the first punching lower die 20 and the second punching lower die 40 is formed in a long work piece. In the product WL, a punching process and a punching process are not performed.

  In addition, in both side portions along the workpiece length direction of the first punching lower die 20 shown in FIG. 9A, a region D and a region between the end on the second punching lower die 40 side and the lower punching blade 21 respectively. E is a portion where no punching or bending is performed on the long workpiece WL.

  On the other hand, in FIG. 10A, in the case where the second lower die 40 is located at the first proximal position, the two-dot chain line indicates the short workpiece when the short workpiece WS is placed. The outline of the outer shape of the product WS is shown. As shown in the figure, the edge along the workpiece length direction of the short workpiece WS is disposed so as to coincide with the edges of the first punching lower mold 20 and the second punching lower mold 40.

  When punching is performed in this state, as shown in FIG. 10 (a), the left and right outer portions from the thick solid line showing the lower punching blade 41 are punched into scrap, and in FIG. 10 (a), The hatched portion is punched and bent by the first punching and bending portion.

(About parts that are not punched or punched in the short workpiece WS)
Also in the short workpiece WS, the regions A and B between the long hole 44 and the lower punching blade 41 shown in FIG. 10A are formed by punching and punching as shown in FIG. This is the part where bending is not performed.

  Further, as shown in FIG. 10 (a), a belt-like region F facing a clearance formed between the first punching lower die 20 and the second punching lower die 40 is formed by a short workpiece. In the product WS, a punching process and a punching process are not performed.

  Further, in both side portions along the workpiece length direction of the first punching lower die 20 shown in FIG. 10A, a region D and a region E between the end of the second punching lower die 40 and the lower punching blade 21, respectively. Is a portion where the punching and bending are not performed on the short workpiece WS as shown in FIG.

(2. Bending mold apparatus 100)
Next, the bending mold apparatus 100 will be described with reference to FIGS. 3, 4, 7, 8, and 9 to 14.

(2.1. Lower mold of bending mold apparatus 100)
The lower mold of the bending mold apparatus 100 has a first lower bending mold 120 and a second lower bending mold 140. Details will be described below.

  As shown in FIGS. 3 and 7, a first bent lower mold 120 is integrally provided on the lower mold support base 111 fixed to the floor FL. In the present embodiment, the first bending lower mold 120 is longer than the first punching lower mold 20 in the workpiece length direction.

  On the upper surface of the lower mold support base 111, the second bent lower mold 140 is provided on the upper surface adjacent to the first bent lower mold 120 so as to be able to approach and separate from the first bent lower mold 120 by the guide portion 113. . In the present embodiment, the second lower bending mold 140 is formed shorter in the workpiece length direction than the second punching lower mold 40. The guide part 113 includes a guide rail provided on the upper surface of the lower mold support base 111. A slider 140a is provided on the lower surface of the second lower bending mold 140, and is slidably fitted to the guide rail.

  In the lower mold support base 111, a cylinder device 115 is provided in a storage space 114 provided below the first bending lower mold 120. The cylinder device 115 is provided as a drive mechanism for moving the second lower bending die 140 toward and away from the first lower bending die 120. The cylinder device 115 includes a hydraulic cylinder, a pneumatic cylinder, or an electric cylinder. The rod 116 of the cylinder device 115 is connected to the second lower bending mold 140.

  By driving the cylinder device 115, the second lower bending mold 140 is moved from the first bending lower mold 120 to the proximal second proximal position shown in FIGS. 7 and 8, and the distal end shown in FIGS. Can be located at any of the second distal positions.

  As shown in FIGS. 3 and 4, an end block 117 is provided on the side of the lower mold support base 111 opposite to the first bent lower mold 120. When the second bending lower mold 140 is positioned at the second distal position, the end block 117 comes into contact with the contact portion 140b on the side surface of the second bending lower mold 140 opposite to the first bending lower mold 120.

  In the lower mold support base 111, an end block 118 is provided between the second bent lower mold 140 and the first bent lower mold 120. When the second bending lower mold 140 is positioned at the second proximal position, the end block 118 comes into contact with the contact portion 140c on the side surface of the second bending lower mold 140 on the first bending lower mold 120 side.

  3 and 4, a pair of movable positioning blocks B11 and B12 fixed to the floor FL are disposed in the internal space below the lower mold support base 111. The positioning block B11 is located closer to the end block 118 than the positioning block B12. The block B12 is located closer to the end block 117 than the positioning block B11. Both positioning blocks B11 and B12 have cylinder devices S11 and S12 that drive the rods L11 and L12 up and down, and positioning members La1 and Lb1 provided at the tips of the rods L11 and L12. The cylinder devices S11 and S12 include a hydraulic cylinder, a pneumatic cylinder, or an electric cylinder.

  The cylinder device S11 of the positioning block B11 moves the rod L11 up and down, thereby bringing the positioning member La1 into contact with the contact portion 140c of the second bending lower mold 140 and restricting the movement of the second bending lower mold 140. It is possible to locate the contact position (see FIG. 3) and the separation position (see FIG. 7) that is separated from the second bending lower mold 140 without contacting the contact portion 140c of the second bending lower mold 140. ing.

  As shown in FIGS. 3 and 4, when the second bending lower mold 140 is located at the second distal position, the positioning block B <b> 11 positions the positioning member La <b> 1 at the contact position, The second lower bending mold 140 is held in the second distal position by being in contact with 140c and sandwiching the second bending lower mold 140 in cooperation with the end block 117.

The positioning block B11 and the end block 117 correspond to second holding means for holding the second bending lower mold 140 at the second distal position.
The cylinder device S12 of the positioning block B12 moves the rod L12 up and down to insert the positioning member Lb1 into the lower through-hole 140e of the second bending lower mold 140, and a contact portion provided on the inner surface of the through-hole 140e. A contact position (see FIG. 7) that contacts the 140d and restricts the movement of the second lower bending mold 140, and a separation position (see FIG. 7) that leaves the through hole 140e and separates from the second lower bending mold 140. 3).

  Then, as shown in FIGS. 7 and 8, when the second bending lower mold 140 is positioned at the second proximal position, the positioning block B12 positions the positioning member Lb1 at the contact position and performs the second bending. The second bent lower die 140 is held in the second proximal position by being put in contact with the abutting portion 140d provided at the lower portion of the lower die 140 in cooperation with the end block 118.

The positioning block B12 and the end block 118 correspond to second holding means for holding the second bending lower mold 140 in the second proximal position.
(2.2. Upper mold of bending mold apparatus 100)
Next, the upper mold of the bending mold apparatus 100 will be described.

  As shown in FIG. 3, an upper mold support base 112 that is suspended and supported by a press device (not shown) is disposed above the lower mold support base 111, and the first bending lower mold 120 is connected to the upper mold support base 112. The first bending upper mold 130 is provided at the corresponding part. Configurations of blades and the like provided in the first lower bending mold 120 and the first upper bending mold 130 will be described later.

  A pad 133 is disposed above the first lower bending mold 120. The pad 133 is suspended and supported via a pressure bolt (not shown) that is slidably passed through the upper mold support base 112 in the vertical direction. The upper head portion of the pressure bolt can be locked to the upper mold support base 112, and in this locked state, the pad 133 is supported as shown in FIGS. The base 112 is supported at the lowest position. A coil spring (not shown) that urges the pad 133 downward is wound around the pressure bolt.

  On the lower surface of the upper mold support base 112 positioned above the second lower bending mold 140 and adjacent to the first upper bending mold 130, the second upper bending mold 150 is guided by the guide portion 119 to the first bending upper mold 130. It is provided so as to be able to approach and separate from the upper mold 130. The guide part 119 includes a guide rail provided on the lower surface of the upper mold support base 112. A slider 150a is provided on the upper surface of the second bending upper mold 150, and is slidably fitted to the guide rail.

  In the upper mold support base 112, a cylinder device 135 is provided in a storage space 134 provided above the pad 133. The cylinder device 135 is provided as a drive mechanism for moving the second bending upper die 150 toward and away from the first bending upper die 130. The cylinder device 135 includes a hydraulic cylinder, a pneumatic cylinder, or an electric cylinder. The rod 136 of the cylinder device 135 is connected to the second bending upper mold 150.

  By driving the cylinder device 135, the second bending upper mold 150 is moved from the first bending upper mold 130 to the proximal second proximal position shown in FIGS. 7 and 8 and the distal movement shown in FIGS. 3 and 4. Can be located at any of the second distal positions. The cylinder device 135 and the cylinder device 115 are configured to move the second upper bending die 150 and the second lower bending die 140 to the second proximal position or the second distal position in synchronization.

  As shown in FIGS. 3 and 4, an end block 137 is provided on the side of the upper mold support base 112 opposite to the first bending upper mold 130. When the second bending upper mold 150 is located at the second distal position, the end block 137 comes into contact with the contact portion 150b on the side surface of the second bending upper mold 150 opposite to the first bending upper mold 130.

  In the upper mold support base 112, an end block 138 is provided between the second bending upper mold 150 and the first bending upper mold 130. When the second bending upper mold 150 is located at the second proximal position, the end block 138 comes into contact with a contact portion 150c on the side surface of the second bending upper mold 150 facing the first bending upper mold 130.

  As shown in FIGS. 3 and 4, a pair of movable positioning blocks B <b> 13 and B <b> 14 fixed to the upper mold support base 112 are disposed in the internal space below the upper mold support base 112. The positioning block B13 is located closer to the end block 138 than the positioning block B14. The block B14 is located closer to the end block 137 than the positioning block B13.

  Both positioning blocks B13, B14 have cylinder devices S13, S14 that drive the rods L13, L14 up and down, and positioning members Lc1, Ld1 provided at the tips of the rods L13, L14. The cylinder devices S13 and S14 include a hydraulic cylinder, a pneumatic cylinder, or an electric cylinder.

  The cylinder device S13 of the positioning block B13 moves the rod L13 up and down to insert the positioning member Lc1 into the through hole 150d in the upper part of the second bending upper mold 150, and a contact portion provided on the inner surface of the through hole 150d. A contact position (see FIG. 3) that contacts the 150e and restricts the movement of the second bending upper mold 150, and a separation position (see FIG. 3) that leaves the through hole 150d and separates from the second bending upper mold 150. 7)).

  As shown in FIGS. 3 and 4, when the second bending upper mold 150 is located at the second distal position, the positioning block B <b> 13 positions the positioning member Lc <b> 1 at the contact position, The second bending upper die 150 is held in the second distal position by being in contact with 150e and sandwiching the second bending upper die 150 in cooperation with the end block 137.

The positioning block B13 and the end block 137 correspond to second holding means for holding the second bending upper mold 150 at the second distal position.
The cylinder device S14 of the positioning block B14 moves the rod L14 up and down, thereby bringing the positioning member Ld1 into contact with the contact portion 150b of the second bending upper mold 150 and restricting the movement of the second bending upper mold 150. The contact position (see FIG. 7) and the separation position away from the second bending upper mold 150 can be located (see FIG. 3). Then, as shown in FIGS. 7 and 8, when the second bending upper mold 150 is located at the second proximal position, the positioning block B <b> 14 positions the positioning member Ld <b> 1 at the contact position, The second bending upper mold 150 is held in the second proximal position by being in contact with the contact portion 50b of the upper mold 150 and sandwiching the second bending upper mold 150 in cooperation with the end block 138.

The positioning block B14 and the end block 138 correspond to second holding means for holding the second bending upper mold 150 in the second proximal position.
A pad 143 is disposed above the second bending lower mold 140. The pad 143 is suspended and supported via a pressure bolt (not shown) that is slidably penetrated in the vertical direction with respect to the upper wall of the second bending upper mold 150. The upper head portion of the pressure bolt can be locked to the upper mold support base 112, and in this locked state, the pad 143 is bent second as shown in FIGS. Support at the lowest position relative to the upper mold 150. A coil spring (not shown) that urges the pad 143 downward is wound around the pressure bolt.

  Further, as shown in FIGS. 3 and 7, guide pins 139 and 159 protrude downward from the first bending upper mold 130 and the second bending upper mold 150. On the other hand, the lower die support base 111 and the second bent lower die 140 are provided with guide holes 129 and 149 having guide bushes for guiding the guide pins 139 and 159.

(2.3. Various types of blades for the upper and lower molds of the bending mold apparatus)
Next, referring to FIG. 9 (b), FIG. 10 (b), FIG. 11 (b), FIG. 12 (b), FIG. 13 (b), and FIG. Various blades of the lower bending mold 120, the first upper bending mold 130, the second lower bending mold 140, and the second upper bending mold 150 will be described. Note that the outer shapes of the first lower bending mold 120 and the second lower bending mold 140 in FIGS. 9B and 10B are partially deformed and illustrated differently from actual dimensions for convenience of explanation. Please note that

  In the present embodiment, the first bending lower mold 120 is formed longer in the workpiece length direction than the second bending lower mold 140, and accordingly, the first bending lower than the second bending upper mold 150. The upper mold 130 is formed longer in the workpiece length direction.

(2.3.1. About the blades of the first bending lower mold 120 and the first bending upper mold 130)
9B and 10B, one end (right end in the figure) of the first lower bending mold 120 and the upper edge of the portion along the workpiece length direction adjacent to the one end are shown in FIG. In order to bend a part along the work length direction adjacent to the edge of the work length direction of the work and the first end side as shown in FIG. Yes. Reference numeral 121A shown in FIGS. 9B and 10B indicates a range where the lower curved blade 121 is provided. Further, as shown in the figure, the portion where the lower curved blade 121 is formed is drawn with a thick solid line.

  On the upper surface of the first lower bending die 120, a three-dimensional shape 122 is formed that matches a part of the surface shape of the long workpiece WL and the short workpiece WS provided to the first bending lower die 120, respectively. Has been. That is, the three-dimensional shape 122 matches a part of the surface shape drawn in the first end side region and the central region in the workpiece length direction in the long workpiece WL and the short workpiece WS. The three-dimensional shape 122 has a common shape for the long workpiece WL and the short workpiece WS.

  9 (b) and 10 (b), the dotted line portion denoted by reference numeral 21A represents the long workpiece WL and the short workpiece subjected to the punching and bending processes by the punching die device 10. When the workpiece WS is placed on the first bending lower mold 120 with the drawn surface shape and the three-dimensional shape 122 matched, the long workpiece WL and the short workpiece processed by the lower cutting blade 21. The position of the part of the product WS is shown.

  9 (b) and 10 (b), the dotted line portions denoted by reference numerals 44A and 45A are long workpieces WL that have been punched and punched by the punching die device 10. When the short workpiece WS is placed on the first bending lower mold 120 with the drawn surface shape and the three-dimensional shape 122 matched, the long workpiece 44 processed by the long hole 44 and the lower bending blade 45 is used. The positions of the parts of the processed product WL and the short processed product WS are shown.

  As shown in the figure, the position of the lower curved blade 121 is a position retracted by a predetermined width d from the position of the long workpiece WL and the short workpiece WS cut by the lower punching blade 21. Is located. The portion having the predetermined width d will be a bent piece M later.

  Further, as shown in FIG. 11 (b), an upper curved blade 131 is formed at the lower part of the first bending upper mold 130 corresponding to the lower curved blade 121, and the upper curved blade 131 and the lower curved blade 121 cooperate with each other. It works and bends the edge of the workpiece in the workpiece length direction on the first end side and the portion along the workpiece length direction adjacent to the one end.

  Further, as shown in FIGS. 9B and 10B, long grooves 124 are formed along the same direction in part of both side portions along the work length direction of the first bending lower mold 120, respectively. In addition, a lower curved blade 125 is formed on the entire edge of the long groove 124 on the side where the solid shape 122 is formed so as to be continuous with the lower curved blade 121.

9B and 10B, reference numeral 125A indicates a range in which the lower curved blade 125 is provided, and the lower curved blade 125 is indicated by a thick solid line in the same manner as the lower curved blade 121.
In addition, in the upper edge part of the both sides along the workpiece | work length direction of the 1st bending lower mold | type 120 shown in FIG.9 (b) and FIG.10 (b), it is a 2nd bending lower mold | die from the terminal end of the lower bending blade 125. A range 170 up to the end portion on the 140 side is a portion where the upper bending blade 132 and the upper bending blade 132A are not provided as shown in FIG. 13 and bending and punching are not performed.

  Further, as shown in FIG. 12B, the first bending upper mold 130 is substantially the same as the side of the lower curved blade 121 along the workpiece length direction in the long groove 124 shown in FIGS. 9B and 10B. An upper bending blade 132 is formed so as to face the half region. 9B and 10B, the symbol R indicates a region where the upper bending blade 132 is opposed to the long groove 124.

  As shown in FIG. 10 (b), the region indicated by the symbol R is the portion located in the region F and the region D shown in FIG. 10 (a) in the short workpiece WS, that is, punching or bending. The part that was not performed is punched and bent by the upper bending blade 132 and the lower bending blade 125.

  In the present embodiment, when the short workpiece WS is bent, a part of the portion indicated by reference numeral 21A and the portion of the short workpiece WS indicated by reference numerals 44A and 45A as shown in FIG. The region R is set so as to overlap the region R.

  Thereby, at the time of processing the short workpiece WS, the edge portion that has been punched and bent by the lower bending blade 45 and the upper bending blade 52 (see FIG. 13A) of the punching die device 10, and The bending process is performed by the edge portion bent by the lower bending blade 121 and the upper bending blade 131 of the bending mold apparatus 100, and the lower bending blade 125 and the upper bending blade 132 (see FIG. 12B). It is possible to smoothly connect the performed edges.

  9B and 10B, the remaining region excluding the region R in the long groove 124 is shown as a region Q. As shown in FIGS. 12 (b), 14 (a), and (b), the upper bending blade as a movable bending blade is provided in the first bending upper die 130 so as to be opposed to the region Q. 132A is provided. The upper bending blade 132A is suspended and supported by a suspension means (not shown) composed of a pressure bolt or the like so as to be movable up and down between the first bending upper mold 130 and the pad 133, and a return spring. It is biased upward by 126.

  A cylinder device 127 is fixed to the first bending upper mold 130 in the vicinity of the upper bending blade 132A. The cylinder device 127 includes a hydraulic cylinder, a pneumatic cylinder, or an electric cylinder. A pusher 128 is fixed to the tip of the rod 127 a of the cylinder device 127. A cam surface 128a is formed at the tip of the pusher 128 so as to face obliquely downward. The cam surface 128a is always in contact with a cam follower surface 132b formed obliquely on the upper part of the upper bending blade 132A.

  As shown in FIG. 14A, the upper bent blade 132A is pushed by the cam surface 128a of the pusher 128 by the advancement of the rod 127a of the cylinder device 127 against the urging force of the return spring 126. It is possible to be positioned at a use position where the punching process is performed by moving downward.

  Further, the upper bending blade 132A is moved upward by the urging force of the return spring 126 by the retraction of the rod 127a and the pusher 128 of the cylinder device 127, and does not perform the bending process shown in FIG. 14B. It is possible to be in position. In the present embodiment, when bending the short workpiece WS, the upper bending blade 132A is positioned at the non-use position, and when bending the long workpiece WL, it is positioned at the use position. I have to.

  In addition, since the length of the width of the long groove 124 (the width in the direction orthogonal to the workpiece length direction) is different in FIG. 12 (b) and FIGS. 14 (a) and 14 (b), Although they look different, they are actually the same length.

  Further, as shown in FIG. 9B, the region R and the region Q are portions of the long workpiece WL positioned in the region C and the region D shown in FIG. With respect to the portion where the bending process has not been performed, the upper bending blade 132, the upper bending blade 132A, and the lower bending blade 125 are subjected to the bending process.

  When bending the long workpiece WL, as shown in FIG. 9B, a region where a part of the portion indicated by reference numeral 21A overlaps the region R in the same manner as the short workpiece WS. R is set. In addition, when bending the long workpiece WL, the region Q is set so that a part of the portion of the long workpiece WL indicated by reference numerals 44A and 45A overlaps the region Q.

  Thereby, at the time of processing the long workpiece WL, the edge portion that has been punched and bent by the lower bending blade 45 and the upper bending blade 52 (see FIG. 13A) of the punching die device 10, and An edge portion bent by the lower bending blade 121 and the upper bending blade 131 of the bending mold apparatus 100, a lower bending blade 125, a movable upper bending blade 132A (see FIG. 14A), and It is possible to smoothly connect the edge portion that has been punched and bent by each of the upper bending blades 132.

(2.3.2. Regarding Blades of Second Bending Lower Die 140 and Second Bending Upper Die 150)
Next, various blades of the second lower bending mold 140 and the second upper bending mold 150 will be described.
9B and 10B, one end (the left end in the figure) of the second lower bending mold 140 and the upper edge of the portion along the workpiece length direction adjacent to the one end are shown in FIG. As shown in FIG. 5B, a lower curved blade 141 is formed to bend the edge of the workpiece on the second end side in the workpiece length direction and the portion along the workpiece length direction adjacent to the one end. Yes. Reference numeral 141 </ b> A shown in FIGS. 9B and 10B indicates a range where the lower curved blade 141 is provided. Further, as shown in the figure, the portion where the lower curved blade 141 is formed is drawn with a thick solid line.

  On the upper surface of the second lower bending mold 140, a three-dimensional shape 142 is formed that matches a part of the drawn surface shape of each of the long workpiece WL and the short workpiece WS provided to the second bending lower mold 140. Has been. That is, the three-dimensional shape 142 matches a part of the surface shape drawn in the region on the second end side in the workpiece length direction in the long workpiece WL and the short workpiece WS. The portion of the three-dimensional shape 142 has a common shape for the long workpiece WL and the short workpiece WS.

  9 (b) and 10 (b), the dotted line portion denoted by reference numeral 41A indicates the long workpiece WL and the short workpiece subjected to the punching and bending processes by the punching die device 10. When the workpiece WS is placed on the second lower bending mold 140 with the drawn surface shape and the three-dimensional shape 142 matched, the long workpiece WL and the short workpiece processed by the lower cutting blade 41 are used. The position of the part of the product WS is shown.

  As shown in the figure, the position of the lower curved blade 141 is a position retracted by a predetermined width d from the position of the long workpiece WL and the short workpiece WS that have been punched by the lower punching blade 41. Is located. The portion having the predetermined width d will be a bent piece M later.

  Further, as shown in FIG. 11B, an upper curved blade 151 is formed at the lower part of the second bending upper die 150 corresponding to the lower curved blade 141, and the upper curved blade 151 and the lower curved blade 141 cooperate with each other. It works and bends the edge of the workpiece in the workpiece length direction on the second end side and the portion along the workpiece length direction adjacent to the one end.

  Further, as shown in FIGS. 9B and 10B, long grooves 144 are formed along the same direction in a part of both side portions along the work length direction of the second bending lower mold 140, respectively. In addition, lower curved blades 145 are formed on the entire edge of the long groove 144 on the side where the three-dimensional shape 142 is formed so as to be continuous with the lower curved blade 141.

9B and 10B, reference numeral 145A indicates a range in which the lower curved blade 145 is provided, and similarly to the lower curved blade 141, the lower curved blade 125 is indicated by a thick solid line.
Further, as shown in FIG. 12B, the upper bending blade 152 is formed in the second bending upper mold 150 with respect to the long groove 144 shown in FIGS. 9B and 10B. . In FIG. 9B and FIG. 10B, the symbol P indicates a region where the upper bending blade 152 is opposed to the long groove 144.

  As shown in FIGS. 9 (b) and 10 (b), the region indicated by the symbol P is shown in FIGS. 9 (a) and 10 (a) in the short workpiece WS and the long workpiece WL. The portions positioned in the regions A and B, that is, the portions that have not been subjected to the punching process or the punching process are bent simultaneously with the punching by the upper bending blade 152 and the lower bending blade 145 (that is, , Punching and bending).

  In the present embodiment, when bending the long workpiece WL and the short workpiece WS, a part of the portion indicated by reference numeral 41A and the reference numeral 44A, as shown in FIGS. 9B and 10B, The region P is set such that the portions of the long workpiece WL and the short workpiece WS indicated by 45A overlap the region P.

  Thus, when the long workpiece WL and the short workpiece WS are machined, the bending process is performed by the lower bending blade 45 and the upper bending blade 52 (see FIG. 13A) of the punching die device 10. It is possible to smoothly connect the broken edge portion and the edge portion that has been punched and bent by the lower bending blade 145 and the upper bending blade 152 (see FIG. 12B).

The upper bending blade 152 and the lower bending blade 145 constitute a second punch bending portion.
(3. Operation of the embodiment)
The operation of the combination of the punching die device 10 and the bending die device 100 configured as described above will be described.

(3.1. Machining of long workpiece WL)
(3.1.1. Processing by punching die device 10)
First, a case where the long workpiece WL is processed by the punching die apparatus 10 will be described.

  As shown in FIG. 18, the long workpiece WL that has been drawn in advance so that the surface has a predetermined surface shape with respect to the main body WLa in the previous process has an outer shape of a rectangle, and the entire periphery of the main body WLa. The flange part WLb is formed in the part.

  As shown in FIG. 9A, among the flange portions WLb at the entire peripheral edge portion, the flange portions WLb at the left and right ends are provided on the punching die device 10 in which the second punching lower die 40 is located at the first distal position. It has a length that protrudes from the lower punching blades 21 and 41 when placed. Further, the flange portions WLb located on both side portions along the workpiece length direction are arranged so that the outline contours coincide with both side portions along the workpiece length direction of the first punching lower die 20 and the second punching lower die 40. Is formed. The dashed-two dotted line of Fig.9 (a) has shown the external shape outline of the flange part WLb.

  The long workpiece WL is positioned at the first distal position by driving the second punching lower die 40 and the second punching upper die 50 as shown in FIG. 1 by driving the cylinder device 15 and the cylinder device 35, respectively. It arrange | positions with respect to the die-die apparatus 10 which opened the mold. In the state shown in FIG. 1, the long workpiece WL is illustrated as a flat plate for convenience of explanation, but it should be understood that the drawing is actually performed. The long workpiece WL is placed in a state in which the drawn surface shape is matched with the three-dimensional shapes 22 and 42 of the first punching lower die 20 and the second punching lower die 40.

In this state, as shown in FIG. 2, the first punching upper die 30 and the second punching upper die 50 are clamped by a press device (not shown).
As shown in FIG. 11 (a), the first punching lower die 20 and the first punching upper die 30, and the second punching lower die 40 and the second punching upper die 50 are arranged as shown in FIG. The upper punching blade 31 and the lower punching blade 41 and the upper punching blade 51 are punched, and are removed from the lower punching blades 21 and 41 at the flange portion WLb on the first end and the second end side of the long workpiece WL. The portion protruding in the direction is cut off, and a part of the flange portion WLb on the first end and second end side whose width is shorter than that before processing is left.

  In the second punching lower die 40 and the second punching upper die 50, as shown in FIG. 13A, in the flange portions WLb on both sides in the workpiece length direction of the long workpiece WL, the lower curved blade 45 is provided. The upper bending blade 52 is punched and bent at a portion facing the long hole 44.

  In addition, in the flange portions WLb on both sides along the workpiece length direction of the long workpiece WL, in the portions located in the regions A, B, D, and E shown in FIG. 9A, FIG. As shown in FIG. 5, the punching and bending processes are not performed on the short workpiece WS.

  Further, in the flange portion WLb on both sides along the workpiece length direction of the long workpiece WL, at the portion located in the region C shown in FIG. Since it is opposed to the clearance formed between the mold 40 and the mold 40, the long workpiece WL is not subjected to punching or bending. After the punching and punching are performed by the punching die device 10, the die is opened and the long workpiece WL is removed from the punching die device 10.

  FIG. 19 shows the long workpiece WL that has been punched and bent by the punching die device 10 as described above. In FIG. 19, the flange portion WLb along the workpiece length direction of the long workpiece WL is indicated by L1 in the workpiece length direction range of the punched and bent part.

(3.1.2. Processing by bending mold apparatus 100))
Next, a case where the long workpiece WL that has been subjected to the punching and bending process by the punching die apparatus 10 is processed by the bending mold apparatus 100 will be described.

  As shown in FIG. 3, the second bending lower mold 140 and the second bending upper mold 150 are positioned at the second distal position by driving the cylinder device 115 and the cylinder device 135, respectively, and the bending mold device 100 is opened. On the other hand, a long workpiece WL is arranged. In the state shown in FIG. 3, the long workpiece WL is illustrated as a flat plate for convenience of explanation, but it should be understood that the drawing is actually performed. The long workpiece WL is placed in a state in which the drawn surface shape is matched with the three-dimensional shapes 122 and 142 of the first bending lower die 120 and the second bending lower die 140 shown in FIG. 9B. ing.

In addition, when processing the long workpiece WL, as shown in FIG. 14A, the upper bending blade 132A is placed in the use position by the operation of the cylinder device 127.
In this state, as shown in FIG. 4, the first bending upper mold 130 and the second bending upper mold 150 are clamped by a pressing device (not shown).

  By this clamping, in the first bending lower mold 120 and the first bending upper mold 130, and in the second bending lower mold 140 and the second bending upper mold 150, the first end and the second end side of the long workpiece WL are arranged. As shown in FIG. 11B, the flange portion WLb is bent by a lower curved blade 121 and an upper curved blade 131, and a lower curved blade 141 and an upper curved blade 151.

  Further, the flange portions WLb on both sides in the workpiece length direction of the long workpiece WL are formed by the lower bending blade 125 and the upper bending blades 132 and 132A at the portion corresponding to the long groove 124 of the first bending lower mold 120. 12 (b) and FIG. 14 (a), the portion that protrudes outward from the long groove 124 is cut off while being drawn and bent.

  Further, the flange portions WLb on both sides in the workpiece length direction of the long workpiece WL are formed by the lower bending blade 145 and the upper bending blade 152 at the portion corresponding to the long groove 144 of the second bending lower mold 140, as shown in FIG. As shown in (b), the portion that is drawn and bent and the portion protruding outward from the long groove 144 is cut off.

  In addition, in the upper edge part of the both sides along the workpiece | work length direction of the 1st bending lower type | mold 120 shown in FIG.9 (b), from the terminal end of the lower bending blade 125 to the edge part on the 2nd bending lower type | mold 140 side In the range 170, as shown in FIG. 13, there is no upper bending blade 132 and upper bending blade 132A, and bending and punching are not performed. This part is a part that has already been bent by the punching die apparatus 10.

After the above processing is performed by the bending mold apparatus 100, the mold is opened and the long workpiece WL is removed from the bending mold apparatus 100.
FIG. 20 shows the long workpiece WL processed by the bending mold apparatus 100 as described above, and the finally remaining portion becomes the bent piece M in the outer peripheral edge of the main body WLa.

(4.1. Machining of short workpiece WL)
(4.1.1. Processing by punching die device 10)
First, the case where the short workpiece WS is processed by the punching die device 10 will be described.

  As shown in FIG. 15, the short workpiece WS that has been drawn in advance so that the surface has a predetermined surface shape with respect to the main body WSa in the previous process has an outer shape of a rectangle, and the entire periphery of the main body WSa. The flange part WSb is formed in the part.

  As shown in FIG. 10A, among the flange portions WSb at the entire peripheral edge portion, the flange portions WSb at the left and right ends are provided on the punching die device 10 in which the second punching lower die 40 is located at the first proximal position. It has a length that protrudes from the lower punching blades 21 and 41 when placed.

  In addition, the flange portions WSb located on both sides along the workpiece length direction are such that the outer contours coincide with both sides along the workpiece length direction of the first punching lower die 20 and the second punching lower die 40. Is formed. The dashed-two dotted line of Fig.10 (a) has shown the external shape outline of the flange part WSb.

  The short workpiece WS is positioned at the first proximal position by driving the second punching lower die 40 and the second punching upper die 50 as shown in FIG. 5 by driving the cylinder device 15 and the cylinder device 35, respectively. It arrange | positions with respect to the die-die apparatus 10 which opened the mold. In the state shown in FIG. 5, the short workpiece WS is illustrated as a flat plate for convenience of explanation, but it should be understood that the drawing is actually performed. The short workpiece WS is placed in a state where the drawn surface shape is matched with the three-dimensional shapes 22 and 42 of the first punching lower mold 20 and the second punching lower mold 40.

In this state, as shown in FIG. 6, the first punching upper die 30 and the second punching upper die 50 are clamped by a press device (not shown).
As shown in FIG. 11 (a), the first punching lower die 20 and the first punching upper die 30, and the second punching lower die 40 and the second punching upper die 50 are arranged as shown in FIG. It is punched by the upper punching blade 31 and the lower punching blade 41 and the upper punching blade 51, and is removed from the lower punching blades 21 and 41 at the flange portion WSb on the first end and second end side of the short workpiece WS. The portion protruding in the direction is cut off, and a part of the flange portion WSb on the first end and the second end side whose width is shorter than that before processing is left.

  In the second punching lower die 40 and the second punching upper die 50, as shown in FIG. 13A, in the flange portions WSb on both sides in the workpiece length direction of the short workpiece WS, the lower curved blade 45 is provided. The upper bending blade 52 is punched and bent at a portion facing the long hole 44.

  In the flange portions WSb on both sides along the workpiece length direction of the short workpiece WS, the portions located in the regions A, B, D, and E shown in FIG. As shown in FIG. 5, the punching and bending processes are not performed on the short workpiece WS.

  Further, in the flange portion WSb on both sides along the workpiece length direction of the short workpiece WS, the first lower lower die 20 and the second lower lower portion are located in the region F shown in FIG. 10A. Since it is opposed to the clearance formed between the mold 40 and the mold 40 that are separated from each other, the punching and bending processes are not performed on the short workpiece WS. After the punching and punching processes are performed by the punching die device 10, the die is opened and the short workpiece WS is removed from the punching die device 10.

FIG. 16 shows the short workpiece WS that has been punched and bent by the punching die device 10 as described above.
In FIG. 16, the flange portion WSb along the workpiece length direction of the short workpiece WS is indicated by L <b> 1 in the range in the workpiece length direction of the part that has been punched and bent.

(4.1.2. Processing by bending mold apparatus 100))
Next, the case where the short workpiece WS that has been subjected to the punching and bending process by the punching die apparatus 10 is processed by the bending mold apparatus 100 will be described.

  As shown in FIG. 7, the second bending lower mold 140 and the second bending upper mold 150 are moved to the second proximal position by driving the cylinder apparatus 115 and the cylinder apparatus 135, respectively, and the bending mold apparatus 100 is opened. On the other hand, a short workpiece WS is arranged. In the state shown in FIG. 7, the short workpiece WS is illustrated as a flat plate for convenience of explanation, but it should be understood that the drawing is actually performed. The short workpiece WS is placed in a state in which the drawn surface shape is matched with the three-dimensional shapes 122 and 142 of the first bending lower mold 120 and the second bending lower mold 140 shown in FIG. ing.

When processing the short workpiece WS, as shown in FIG. 14B, the upper bending blade 132A is in a non-use position by the operation of the cylinder device 127.
In this state, as shown in FIG. 8, the first bending upper mold 130 and the second bending upper mold 150 are clamped by a pressing device (not shown).

  By this clamping, in the first bending lower mold 120 and the first bending upper mold 130, and in the second bending lower mold 140 and the second bending upper mold 150, the first end and the second end side of the short workpiece WS are disposed. As shown in FIG. 11B, the flange portion WSb is bent by the lower curved blade 121 and the upper curved blade 131, and the lower curved blade 141 and the upper curved blade 151.

  Further, the flange portions WSb on both sides in the workpiece length direction of the short workpiece WS are shown by the lower bending blade 125 and the upper bending blade 132 at the portion corresponding to the long groove 124 of the first bending lower mold 120. As shown in FIG. 12 (b), it is punched and bent, and the portion protruding outward from the long groove 124 is cut off.

  Further, the flange portion WSb on both sides in the workpiece length direction of the short workpiece WS is formed by the lower bending blade 145 and the upper bending blade 152 at a portion corresponding to the long groove 144 of the second bending lower mold 140 as shown in FIG. As shown in (b), the portion that is drawn and bent and the portion protruding outward from the long groove 144 is cut off.

  In addition, in the upper edge part of the both sides along the workpiece | work length direction of the 1st bending lower type | mold 120 shown in FIG.9 (b), from the terminal end of the lower bending blade 125 to the edge part on the 2nd bending lower type | mold 140 side In the range 170, as shown in FIG. 13, there is no upper bending blade 132 and upper bending blade 132A, and bending and punching are not performed. This part is a part that has already been bent by the punching die apparatus 10.

After the above processing is performed by the bending mold apparatus 100, the mold is opened and the short workpiece WS is removed from the bending mold apparatus 100.
FIG. 17 shows the short workpiece WS processed by the bending mold apparatus 100 as described above, and the finally remaining portion becomes the bent piece M in the outer peripheral edge of the main body WSa.

In FIG. 20, the flange portion WLb along the workpiece length direction of the long workpiece WL is indicated by L1 in the workpiece length direction range of the punched and bent part.
Therefore, according to this embodiment, the following effects can be obtained.

  (1) The punching die apparatus according to the present embodiment includes a first punching upper die 30 for punching an edge of a short workpiece WS and a long workpiece WL (workpiece) on one end side in the workpiece length direction. It is possible to move to a first first proximal position and a first distal distal position in the workpiece length direction with respect to the first lower lower mold 20, the first upper upper mold 30 and the first lower lower mold 20. A second punching upper die 50 and a second punching lower die 40 are provided for punching the edge portion on the other end side of the workpiece in the workpiece length direction. Further, at both side portions along the workpiece length direction of the second punching upper die 50 and the second punching lower die 40, the edge portion of the workpiece along the workpiece length direction is bent simultaneously with the punching processing. A lower bending blade 45 and an upper bending blade 52 are provided as the first drafting portion.

  When the second punching upper die 50 and the second punching lower die 40 are located at the first distal position, when the short workpiece WS and the long workpiece WL (workpiece) are processed, the workpiece length At the edges of the short workpiece WS and the long workpiece WL along the length direction, a portion where the bending process is not performed is left.

As a result, it is possible to provide a punching die apparatus that can perform punching on both short workpieces and long workpieces.
(2) The punching die device of the present embodiment includes the positioning block B1 and the end block 17, the positioning block B3 and the end block 37, the second punching lower die 40 and the second punching upper die 50, respectively, as the first distal end. The first holding means for holding the position is used.

  Further, the first holding means for holding the positioning block B2 and the end block 18 and the positioning block B4 and the end block 38 at the first proximal position, respectively. It is said.

As a result, according to the present punching die apparatus, when the short workpiece and the long workpiece are punched, the first holding means can stably perform the punching.
(3) The bending mold apparatus includes a first bending upper mold 130 and a first bending lower mold 120 that bend the edge of the workpiece on one end side in the workpiece length direction, a first bending upper mold 130, and a first bending mold. 1 The lower mold 120 is movably provided at a second proximal position and a distal second distal position which are proximal in the work length direction, and the edge of the work on the other end side in the work length direction. A second bending upper die 150 and a second bending lower die 140 for bending the portion are provided.

  The edges of the second bent upper die 150 and the second bent lower die 140 along the workpiece length direction are edges that have been punched and bent in a short workpiece and a long workpiece (workpiece) in the previous step. The upper bending is performed so that it overlaps with a part of the part and performs bending simultaneously with the punching on the edge that has not been punched and bent on the short workpiece and long workpiece (work) A blade 152 and a lower curved blade 145 (second punched and bent portion) are provided. As a result, it is possible to provide a bending mold apparatus that can perform bending on both short workpieces and long workpieces.

  (4) The bending mold apparatus holds the positioning block B11 and the end block 117, the positioning block B13 and the end block 137, and the second lower bending mold 140 and the second bending upper mold 150 in the second distal position. The second holding means.

  Further, the positioning block B12 and the end block 118, and the positioning block B14 and the end block 138 are used as second holding means for holding the second bending lower mold 140 and the second bending upper mold 150 in the second proximal position, respectively. Yes.

As a result, according to the present bending die apparatus, when the short workpiece and the long workpiece are bent, the second holding means can stably perform the bending.
(5) When the second bending upper mold 150 and the second bending lower mold 140 are located at the second distal position, the second blanking section of the bending mold apparatus includes a short workpiece. When the second bending upper mold 150 and the second bending lower mold 140 are positioned at the second proximal position, the bending is performed on the edge of the long workpiece (workpiece). An upper bending blade 132A is provided as a movable bending blade that does not perform machining.

As a result, according to the present bending mold apparatus, it is possible to selectively perform the bending process using the movable bending blade in accordance with the short workpiece and the long workpiece.
(6) The combination of the punching die device and the bending die device according to the present embodiment can perform punching and bending for both the short workpiece and the long workpiece.

In addition, this embodiment can also be changed and embodied as follows.
In the above-described embodiment, the cylinder mechanism 15 constitutes the drive mechanism that causes the second lower lower mold 40 to move toward and away from the first lower lower mold 20. Instead of this configuration, the drive mechanism is configured by an electric motor, a ball screw that is driven to rotate forward and backward by the electric motor, and a nut member that is provided in the second lower lower mold 40 and meshes with the ball screw. May be.

  In the above embodiment, the cylinder device 115 is configured as a drive mechanism that moves the second lower bending die 140 toward and away from the first bending lower die 120. Instead of this configuration, the drive mechanism is configured by an electric motor, a ball screw that is driven to rotate forward and backward by the electric motor, and a nut member that is provided on the second lower bending mold 140 and meshes with the ball screw. May be.

  In the above embodiment, the first punching and bending portion is provided only in the second punching lower die 40 and the second punching upper die 50, but the second punching lower die 40, the second punching upper die 50, and the first You may provide in both the lower extraction die 20 and the 1st extraction upper die 30. FIG.

Further, the first punching and bending portion may be provided only in the first punching lower mold 20 and the first punching upper mold 30.
In the above-described embodiment, the second drafting portion is provided only in the first upper bending die 130 and the first lower bending die 120, but the second drafting portion is provided in the second upper bending die 150 and the second bending portion. The lower mold 140 may be provided on both side portions along the workpiece length direction, or the first bending upper mold 130 and the first bending lower mold 120, and the second bending upper mold 150 and the second bending lower mold 140 may be provided. You may make it provide in each.

  In the above embodiment, the first bending lower mold 120 is formed longer than the first punching lower mold 20 in the workpiece length direction, and the second bending lower mold 140 is set to be a workpiece more than the second punching lower mold 40. It was formed short in the length direction. Instead of this configuration, the first bending lower die 120 is formed shorter than the first punching lower die 20 in the workpiece length direction, and the second bending lower die 140 is set to be a workpiece lower than the second punching lower die 40. You may form long in a length direction.

DESCRIPTION OF SYMBOLS 10 ... Die mold apparatus, 20 ... 1st extraction lower mold | type, 30 ... 1st extraction upper mold | type,
40 ... second punching lower mold, 50 ... second punching upper mold,
DESCRIPTION OF SYMBOLS 100 ... Bending die apparatus, 120 ... 1st bending lower type | mold, 130 ... 1st bending upper type | mold,
140: second bending lower mold, 150: second bending upper mold.

Claims (6)

A first punching upper die and a first punching lower die for punching the edge of the workpiece on one end side in the workpiece length direction;
The first upper die and the first lower die are provided so as to be movable to a proximal first proximal position and a distal first distal position in the workpiece length direction, and in the workpiece length direction. A second punching upper die and a second punching lower die for punching the edge on the other end side of the workpiece;
At both sides along the workpiece length direction in the upper and lower dies of at least one of the first upper die and the first lower die and the second upper die and the second lower die, the workpiece length is A first punched and bent portion that performs bending at the same time as punching is provided for the edge of the workpiece along the direction,
When at least the second upper punching die and the second lower punching die are processed at the first distal position, the workpiece is punched at the edge of the workpiece along the workpiece length direction. A punching die device characterized by leaving a portion where bending is not performed.   The first holding means is provided for holding the second upper extraction die and the second lower extraction die at the first distal position and the first proximal position, respectively. Item 2. The punching die apparatus according to Item 1. A first bending upper mold and a first bending lower mold for bending the edge of the workpiece on one end side in the workpiece length direction;
The first upper bending mold and the first lower bending mold are provided so as to be movable to a proximal second proximal position and a distal second distal position in the work length direction. A second bending upper mold and a second bending lower mold for bending the edge of the end side workpiece;
At both sides along the workpiece length direction of at least one of the first bending upper die and the first bending lower die, and the second bending upper die and the second bending lower die, the workpiece is punched and bent in the previous step. A second punching portion is provided that overlaps with a part of the processed edge and performs bending simultaneously with the punching on the edge that has not been punched or bent in the workpiece. A bending mold apparatus characterized by that.   The second holding means is provided for holding the second bending upper mold and the second bending lower mold at the second distal position and the second proximal position when the second bending upper mold and the second bending lower mold are positioned at the second distal position and the second proximal position, respectively. Item 4. The bending mold apparatus according to Item 3.   The second drafting section performs a drafting process on the edge of the workpiece when the second upper bending mold and the second lower bending mold are located at the second distal position, and The movable bending blade which does not perform punching and bending when the second bending upper die and the second bending lower die are located at the second proximal position is provided. Item 5. The bending die apparatus according to item 4.   The bending device according to any one of claims 3 to 5, wherein bending is performed on the punching die device according to claim 1 or 2, and the workpiece processed by the punching die device. A combination of a punching die device and a bending die device characterized by combining a die device.

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