Stamping forming die for automobile parts

Abstract

The utility model discloses an automobile part stamping forming die, and relates to the technical field of dies. The automobile part stamping forming die comprises an upper die body and a lower die body, a mounting plate is arranged at the top of the upper die body, a hydraulic cylinder is fixedly arranged on the lower surface of the mounting plate, and the telescopic end of the hydraulic cylinder is fixedly connected with the upper surface of the upper die body; and the material ejecting assembly is used for ejecting the formed automobile covering part plate out of the lower die and the upper die when the upper die is separated from the lower die. According to the utility model, the material ejecting assembly is arranged, so that in the actual use process of the die, the full separation of an automobile covering part plate from the upper die and the lower die can be realized, and in the process, the top plate at the upper part and the top plate at the lower part always abut against the automobile covering part plate; and it is guaranteed that the automobile covering part plate can be kept at the fixed position to be separated from the upper mold and the lower mold during demolding, position deviation of the formed automobile covering part plate is avoided, and follow-up material taking is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to a stamping die for automotive parts. Background Technology

[0002] Stamping is a common manufacturing method in the production of automotive parts, especially automotive body panels.

[0003] Automotive body panels refer to surface or internal parts made of thin metal sheets that cover the engine, chassis, and form the cab and body. In the stamping process of these spatial sheet-like parts, specific molds are required to stamp them into a specified shape.

[0004] Existing stamping dies consist of an upper die and a lower die. During stamping, the upper die is driven downwards to press the sheet metal placed on the lower die. Although this type of die can press the sheet metal into the specified shape of automotive body panels, during the demolding process after pressing, the formed parts are prone to getting stuck inside the lower or upper die, resulting in insufficient demolding and affecting production efficiency. Moreover, the upper die is prone to causing the part to shift in position when resetting, which is detrimental to subsequent production. In view of this, this application proposes a stamping forming die for automotive parts. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a stamping die for automotive parts, which solves the problems of insufficient demolding and easy displacement of the formed parts during demolding mentioned in the background technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a stamping die for automotive parts, comprising:

[0007] The upper and lower dies are used to stamp and form automotive body panel materials. The top of the upper die is provided with a mounting plate, and a hydraulic cylinder is fixedly mounted on the lower surface of the mounting plate. The telescopic end of the hydraulic cylinder is fixedly connected to the upper surface of the upper die.

[0008] An ejector assembly is used to eject the formed automotive body panel material from the lower mold and the upper mold respectively when the upper mold and the lower mold separate. The ejector assembly includes four first cylindrical cavities arranged in a rectangular array on the upper surface of the lower mold and four second cylindrical cavities arranged in a rectangular array on the lower surface of the upper mold. The inner walls of the first cylindrical cavities and the second cylindrical cavities are slidably provided with sealing pistons. A connecting rod is fixedly provided on the surface of the sealing piston, and a top plate is fixedly provided at the end of the connecting rod away from the sealing piston. The ejector assembly also includes telescopic inflatable airbags symmetrically fixed on the upper surface of the upper mold for inflating the interior of the two first cylindrical cavities and the two second cylindrical cavities.

[0009] Preferably, the lower mold has a mold cavity at its top and the upper mold has a mold core at its bottom that is adapted to the mold cavity.

[0010] Preferably, the bottom end of the telescopic inflatable airbag is provided with two connecting tubes that communicate with the telescopic inflatable airbag, and the ends of the two connecting tubes away from the telescopic inflatable airbag extend into the interior of the two second cylindrical cavities respectively.

[0011] Preferably, an ejector spring is fixedly provided on the inner bottom wall of the first cylindrical cavity, and the other end of the ejector spring is fixedly connected to the sealing piston surface of the inner wall of the first cylindrical cavity. A vent hole is provided on the bottom inner ring surface of the first cylindrical cavity.

[0012] Preferably, the lower surface of the mounting plate is fixed with two symmetrical fixing tubes, and the inner wall of the fixing tubes is slidably provided with telescopic rods, the bottom ends of the two telescopic rods being fixedly connected to the top ends of the two telescopic inflatable airbags respectively.

[0013] Preferably, a thick spring is fitted on the outer surface of the fixed tube and the telescopic rod, and the two ends of the thick spring are fixedly connected to the lower surface of the mounting plate and the top of the telescopic inflatable airbag, respectively.

[0014] Preferably, the inner top wall and inner bottom wall of the telescopic inflatable airbag are fixed with thin springs. Beneficial effects

[0015] This utility model provides a stamping die for automotive parts. Compared with the prior art, it has the following advantages:

[0016] This automotive parts stamping die, by setting up an ejector assembly, enables the automotive body panel material to be fully separated from the upper and lower dies during actual use. Moreover, during this process, the upper and lower ejector plates always press against the automotive body panel material, ensuring that the automotive body panel material can maintain a fixed position and separate from the upper and lower dies during demolding, avoiding displacement of the automotive body panel material after forming, and facilitating subsequent material removal. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a schematic diagram of the orthographic structure of this utility model.

[0019] Figure 3 This is a schematic cross-sectional view of the first cylindrical cavity and the second cylindrical cavity of this utility model.

[0020] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0021] In the picture:

[0022] 100. Upper mold; 101. Mold core;

[0023] 200. Lower mold; 201. Mold cavity;

[0024] 300. Mounting plate;

[0025] 400. Hydraulic cylinder;

[0026] 500. Automotive body panel materials;

[0027] 600. Top material assembly; 601. First cylindrical cavity; 602. Second cylindrical cavity; 603. Sealing piston; 604. Connecting rod; 605. Top plate; 606. Telescopic inflatable airbag; 607. Connecting pipe; 608. Ejection spring; 609. Fixing pipe; 6010. Telescopic rod; 6011. Coarse spring; 6012. Fine spring; 6013. Vent hole. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-4 This utility model provides a technical solution: a stamping die for automotive parts, comprising:

[0030] The upper die 100 and the lower die 200 are used to stamp and form the automotive body panel 500. The top of the upper die 100 is provided with a mounting plate 300, and a hydraulic cylinder 400 is fixedly mounted on the lower surface of the mounting plate 300. The telescopic end of the hydraulic cylinder 400 is fixedly connected to the upper surface of the upper die 100.

[0031] The ejector assembly 600 is used to eject the formed automotive body panel 500 from the lower mold 200 and the upper mold 100 respectively when the upper mold 100 and the lower mold 200 are separated. The ejector assembly 600 includes four first cylindrical cavities 601 arranged in a rectangular array on the upper surface of the lower mold 200, and four second cylindrical cavities 602 arranged in a rectangular array on the lower surface of the upper mold 100. The inner walls of the first cylindrical cavities 601 and the second cylindrical cavities 602 are slidably provided with sealing pistons 603. A connecting rod 604 is fixedly provided on the surface of the sealing piston 603, and a top plate 605 is fixedly provided at the end of the connecting rod 604 away from the sealing piston 603. The ejector assembly 600 also includes telescopic inflatable airbags 606 symmetrically fixed on the upper surface of the upper mold 100 for inflating the interior of the two first cylindrical cavities 601 and the two second cylindrical cavities 602.

[0032] See Figure 2 The lower mold 200 has a mold cavity 201 at the top, and the upper mold 100 has a mold core 101 at the bottom that is adapted to the mold cavity 201.

[0033] Specifically, by setting the mold cavity 201 and the mold core 101, the automotive body panel 500 can be stamped into a specified shape.

[0034] In actual use, when stamping the automotive body panel 500, the mold can place the automotive body panel 500 on the lower mold 200 and start the hydraulic cylinder 400 to drive the upper mold 100 to move downward. During the downward movement of the upper mold 100, the automotive body panel 500 can be stamped into the specified shape under the action of the mold core 101 and the mold cavity 201.

[0035] See Figure 2 and Figure 3 The bottom end of the telescopic inflatable airbag 606 is provided with two connecting tubes 607 that communicate with the telescopic inflatable airbag 606, and the ends of the two connecting tubes 607 away from the telescopic inflatable airbag 606 extend into the interior of the two second cylindrical cavities 602 respectively.

[0036] Specifically, by setting the connecting pipe 607, the interior of the second cylindrical cavity 602 can be inflated during the compression of the telescopic inflatable airbag 606.

[0037] See Figure 4 An ejector spring 608 is fixedly provided on the inner bottom wall of the first cylindrical cavity 601, and the other end of the ejector spring 608 is fixedly connected to the surface of the sealing piston 603 on the inner wall of the first cylindrical cavity 601. A vent hole 6013 is provided on the inner ring surface at the bottom of the first cylindrical cavity 601.

[0038] Specifically, when the telescopic inflatable airbag 606 is compressed to its maximum extent, the continued contraction of the hydraulic cylinder 400 will cause the telescopic rod 6010 to slide into the fixed tube 609. During this process, the telescopic inflatable airbag 606 remains compressed, but will no longer inflate the second cylindrical cavity 602. Therefore, it will cause the upper top plate 605 to move upward. At this time, the sealing piston 603 in the first cylindrical cavity 601 can move upward under the action of the ejection spring 608, and through the lower top plate 605, eject the automotive body panel 500 from the lower mold 200, thus achieving full separation of the automotive body panel 500 from the upper mold 100 and the lower mold 200.

[0039] See Figure 2 Two symmetrical fixing tubes 609 are fixed on the lower surface of the mounting plate 300, and telescopic rods 6010 are slidably provided on the inner wall of the fixing tubes 609. The bottom ends of the two telescopic rods 6010 are respectively fixedly connected to the top ends of the two telescopic inflatable airbags 606.

[0040] Specifically, by setting the fixed tube 609 and the telescopic rod 6010, the stability of the upper mold 100 during movement is effectively guaranteed.

[0041] See Figure 2 A thick spring 6011 is fitted on the outer surface of the fixed tube 609 and the telescopic rod 6010, and the two ends of the thick spring 6011 are fixedly connected to the lower surface of the mounting plate 300 and the top of the telescopic inflatable airbag 606, respectively.

[0042] Specifically, by setting a coarse spring 6011, the coarse spring 6011 will not contract during the upward movement of the upper mold 100 and when the telescopic inflatable airbag 606 is compressed. The coarse spring 6011 can only be compressed after the telescopic inflatable airbag 606 is compressed to its maximum limit.

[0043] See Figure 2 A thin spring 6012 is fixed to the inner top wall and inner bottom wall of the telescopic inflatable airbag 606.

[0044] Specifically, by setting a thin spring 6012, the retractable inflatable airbag 606 can be easily reset.

[0045] In this invention, by setting the top material assembly 600, the automotive body panel 500 can be fully separated from the upper mold 100 and the lower mold 200 after stamping. During this process, the upper top plate 605 and the lower top plate 605 always press against the automotive body panel 500, ensuring that the automotive body panel 500 can maintain a fixed position and separate from the upper mold 100 and the lower mold 200 during demolding. This avoids the situation where the position of the automotive body panel 500 shifts after forming, and facilitates subsequent material removal.

[0046] Working principle: When stamping the automotive body panel 500, the panel is placed on the lower die 200, and the hydraulic cylinder 400 is activated to move the upper die 100 downward. During the downward movement of the upper die 100, the panel 500 is stamped into the specified shape under the action of the die core 101 and the die cavity 201. After stamping, the hydraulic cylinder 400 is activated to retract, moving the upper die 100 upward. During the upward movement of the upper die 100, the two telescopic inflatable airbags 606 are compressed, causing them to inflate the interior of the second cylindrical cavity 602 through the connecting pipe 607. This causes the sealing piston 603 inside the second cylindrical cavity 602 to move downward, which in turn moves the upper top plate 605 downward, positioning the automotive body panel 500 inside the lower die 200. When the telescopic inflatable airbags 606 are compressed to their maximum extent... At this time, the continued contraction of the hydraulic cylinder 400 will drive the telescopic rod 6010 to slide into the fixed tube 609. During this process, the telescopic inflatable airbag 606 remains compressed, but will no longer inflate the second cylindrical cavity 602. Therefore, it will drive the upper top plate 605 to move upward. At this time, the sealing piston 603 in the first cylindrical cavity 601 can move upward under the action of the ejection spring 608, and through the lower top plate 605, the automotive body panel 500 is ejected from the lower mold 200, realizing the full separation of the automotive body panel 500 from the upper mold 100 and the lower mold 200. Moreover, during this process, the upper top plate 605 and the lower top plate 605 always press against the automotive body panel 500, ensuring that the automotive body panel 500 can maintain a fixed position and separate from the upper mold 100 and the lower mold 200 during demolding, avoiding the situation that the position of the automotive body panel 500 will shift after molding, which facilitates subsequent material removal.

[0047] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

Claims

1. An automobile part press forming die characterized by, include: The upper die (100) and the lower die (200) are used to stamp and form automotive body panel material (500). The upper die (100) is provided with a mounting plate (300) on its top, and a hydraulic cylinder (400) is fixedly mounted on the lower surface of the mounting plate (300). The telescopic end of the hydraulic cylinder (400) is fixedly connected to the upper surface of the upper die (100). An ejector assembly (600) is used to eject the formed automotive body panel sheet (500) from the lower mold (200) and the upper mold (100) respectively when the upper mold (100) and the lower mold (200) separate. The ejector assembly (600) includes four first cylindrical cavities (601) arranged in a rectangular array on the upper surface of the lower mold (200) and four second cylindrical cavities (602) arranged in a rectangular array on the lower surface of the upper mold (100). The first cylindrical cavities (601) and The inner wall of the second cylindrical cavity (602) is slidably provided with a sealing piston (603). A connecting rod (604) is fixedly provided on the surface of the sealing piston (603), and a top plate (605) is fixedly provided at the end of the connecting rod (604) away from the sealing piston (603). The ejector assembly (600) also includes telescopic inflatable airbags (606) symmetrically fixed on the upper surface of the upper mold (100) for inflating the interior of the two first cylindrical cavities (601) and the two second cylindrical cavities (602).

2. The stamping forming die for an automobile part according to claim 1, characterized by: The lower mold (200) has a mold cavity (201) at the top, and the upper mold (100) has a mold core (101) at the bottom that is compatible with the mold cavity (201).

3. The stamping forming die for an automobile part according to claim 1, characterized by: The bottom end of the telescopic inflatable airbag (606) is provided with two connecting tubes (607) that communicate with the telescopic inflatable airbag (606), and the ends of the two connecting tubes (607) away from the telescopic inflatable airbag (606) extend into the interior of the two second cylindrical cavities (602) respectively.

4. The stamping forming die for an automobile part according to claim 1, characterized by: An ejector spring (608) is fixedly provided on the inner bottom wall of the first cylindrical cavity (601), and the other end of the ejector spring (608) is fixedly connected to the surface of the sealing piston (603) on the inner wall of the first cylindrical cavity (601). A vent hole (6013) is provided on the inner ring surface of the bottom of the first cylindrical cavity (601).

5. The stamping forming die for an automobile part according to claim 1, characterized by: The lower surface of the mounting plate (300) is fixed with two symmetrical fixing tubes (609), and the inner wall of the fixing tubes (609) is slidably provided with telescopic rods (6010). The bottom ends of the two telescopic rods (6010) are respectively fixedly connected to the top ends of the two telescopic inflatable airbags (606).

6. The stamping forming die for an automobile part according to claim 5, characterized by: A thick spring (6011) is fitted on the outer surface of the fixed tube (609) and the telescopic rod (6010), and the two ends of the thick spring (6011) are fixedly connected to the lower surface of the mounting plate (300) and the top of the telescopic inflatable airbag (606), respectively.

7. The stamping forming die for an automobile part according to claim 1, characterized by: The inner top and inner bottom walls of the telescopic inflatable airbag (606) are fixed with thin springs (6012).

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