A single action press drawing die structure for an automobile panel

Abstract

The utility model discloses a kind of automobile covering piece single-action press drawing die structure, it is related to automobile covering piece production device design technical field, including support base plate, drawing stamping unit and blowing demolding unit, support base plate lower side surface four corners are respectively fixedly connected with one stable support leg, the fixed frame is set on the upper side surface of support base plate, the fixed frame on support base plate is set with drawing stamping unit, the lower die on the drawing stamping unit is set with blowing demolding unit, drawing stamping unit includes lower die, push rod fixed shell, electric push rod, moving fixed plate, limiting cylinder and limiting round sleeve, the position between fixed frame of the upper side surface of support base plate is provided with a lower die, demolding is more convenient, reduce stamping time, the production efficiency of automobile covering piece is improved, stamping is more stable, prevent raw material damage, do not affect product quality.

Description

Technical Field

[0001] This utility model relates to the field of automotive body panel production equipment design technology, specifically to a stretching die structure for a single-action press for automotive body panels. Background Technology

[0002] Automotive body panels refer to spatially shaped surface or internal parts made of thin metal sheets that cover the engine, chassis, and form the cab and body. They can be categorized into three types based on function and location: external body panels, internal body panels, and frame body panels. They differ from general stamped parts in terms of process design, mold processing, equipment selection, and quality control (dimensional tolerances, shape accuracy, part rigidity, surface quality). During production, they require stamping processing. A single-action press specifically refers to stamping equipment that controls the movement of only a single slide through a single transmission system; this definition became a standard term in mechanical engineering in 2021. In the crank press classification system, it serves as a basic type based on the number of slides, paralleling multi-slide double-action and triple-action presses. For ease of production, a single-action press stretching die structure for automotive body panels is needed for processing.

[0003] The existing single-action press stretching die structure for automotive body panels has the following drawbacks: inconvenient demolding during processing, increased stamping time, reduced production efficiency of automotive body panels, unstable stamping, resulting in raw material damage and affecting product quality. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a stretching die structure for a single-action press for automotive body panels. During processing, demolding is more convenient, stamping time is reduced, the production efficiency of automotive body panels is improved, stamping is more stable, raw material damage is prevented, and production quality is not affected. This can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a stretching die structure for a single-action press for automotive body panels, comprising a supporting base plate, a stretching and stamping unit, and an air-blowing demolding unit;

[0006] Support base plate: A stable support leg is fixedly connected to each of the four corners of the lower surface. A fixing frame is provided on the upper surface of the support base plate. A stretching and stamping unit is provided in the fixing frame on the support base plate. An air blowing demolding unit is provided in the lower mold on the stretching and stamping unit.

[0007] The stretching and stamping unit includes a lower die, a push rod fixing shell, an electric push rod, a movable fixing plate, limiting cylinders, and limiting sleeves. A lower die is positioned on the upper surface of the support base plate between the fixing frames. A limiting sleeve is fixedly connected to each of the four corners of the upper side of the lower die. A push rod fixing shell is fixedly connected to the fixing frame. An electric push rod is fixedly connected inside the push rod fixing shell. The extended end of the electric push rod passes through the fixing frame and is fixedly connected to the movable fixing plate. The movable fixing plate corresponds to the lower die. A limiting cylinder is fixedly connected to each of the four corners of the lower surface of the movable fixing plate. The four limiting cylinders are fixedly inserted into the corresponding limiting sleeves. The input end of the electric push rod is electrically connected to the output end of an external power supply via an external control switch group.

[0008] The support base plate is used for assembly, the fixing bracket is used for fixing the assembly, and it is convenient for processing. The stretching and stamping unit is used for stamping. The air blowing and demolding unit is used for demolding after processing. The lower mold is used to support the raw material, and it is convenient for stamping. The push rod fixing shell is used to fix the electric push rod. When the electric push rod is activated, it provides power for stamping. The movable fixing plate is used to fix and install mold protrusion one and mold protrusion two. The movable fixing plate moves to adjust the position for stamping. The limiting cylinder and the limiting sleeve cooperate to make the upper and lower molds more stable, and it is convenient for stamping and processing.

[0009] Furthermore, the stretching and stamping unit also includes a buffer damper, a snap-fit ​​rectangular plate, and a second mold protrusion. The lower surface of the movable fixed plate is provided with four rectangular arrays of circular holes, each of which contains a buffer damper. The lower end of each buffer damper is fixedly connected to a snap-fit ​​rectangular plate, and a second mold protrusion is fixedly connected to each of the four snap-fit ​​rectangular plates.

[0010] The buffer damper is used to buffer during stamping, making the stamping process more stable. The snap-fit ​​rectangular plate is used to fix the second mold protrusion, which is used for stamping and processing.

[0011] Furthermore, the stretching and stamping unit also includes a movable cylinder and a first mold protrusion. A limiting groove is provided on the lower surface of the movable fixing plate at the left and right sides of the second mold protrusion. A movable cylinder is fixedly connected in each limiting groove. The two movable cylinders are movably connected to the first mold protrusion through torsion springs. The positions of the two first mold protrusions are higher than those of the second mold protrusion.

[0012] The movable cylinder is used to fix the first mold protrusion. The first mold protrusion is used to stamp the raw material, which facilitates stamping production and stretching.

[0013] Furthermore, the stretching and stamping unit also includes a mold cavity, and the lower mold has a mold cavity, which corresponds to mold protrusion one and mold protrusion two.

[0014] The mold cavity is used to mate with mold protrusion one and mold protrusion two for stamping processing, thereby facilitating the production of automotive body panels, stretching mold production, and other processing applications.

[0015] Furthermore, the air-blowing demolding unit includes a power pump, a fixed support frame, and an air-blowing nozzle. A rectangular snap-fit ​​groove is provided on the rear side of the lower mold, located on the lower side of the mold cavity. Multiple demolding air outlets are provided on the mold cavity. The lower surface of the rectangular snap-fit ​​groove is fixedly connected to the power pump via a support base. The air outlet on the power pump is fixedly connected to one end of a connecting pipe. A fixed support frame is provided on each of the left and right sides of the rectangular snap-fit ​​groove. An air-blowing nozzle is fixedly connected to each of the two fixed support frames. The air outlet on the air-blowing nozzle corresponds to the demolding air outlet on the mold cavity. The other end of the connecting pipe is fixedly snapped to the air inlet on the air-blowing nozzle. The input end of the power pump is electrically connected to the output end of an external power supply via an external control switch group.

[0016] The power pump starts to provide power for air blowing. The fixed support frame is used to fix the air blowing nozzle, which is used for air blowing to demolding, making demolding processing convenient.

[0017] Furthermore, the air-blowing demolding unit also includes an external connecting pipe and a fixed cover plate. The air inlet on the power pump is fixedly connected to the external connecting pipe. A fixed cover plate is fixedly connected in the rectangular locking groove. The rear end of the external connecting pipe passes through the fixed cover plate and is connected to an external air source.

[0018] The external connection pipe is used to connect to an external air source for blowing air, which facilitates demolding. The fixed cover plate is used to seal and fix the lower mold for protection.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. The single-action press stretching die structure for automotive body panels has the following advantages: It is equipped with a stretching and stamping unit. The lower die supports the raw material, facilitating stamping. The push rod fixing shell secures the electric push rod, which provides power for stamping. The movable fixing plate secures and mounts die protrusion one and die protrusion two. The movable fixing plate moves to adjust the position for stamping. A limiting cylinder and a limiting sleeve cooperate, and a buffer damper provides cushioning during stamping, making the stamping process more stable. A snap-fit ​​rectangular plate secures die protrusion two, which is used for stamping. A movable cylinder secures die protrusion one, which stamps the raw material. The die cavity mates with die protrusion one and die protrusion two for stamping processing.

[0021] 2. The single-action press stretching die structure for automotive body panels has the following advantages: It is equipped with an air blowing demolding unit, which is started by a power pump to provide power for air blowing; a fixed support frame is used to fix the air blowing nozzle, which is used for air blowing; an external connection pipe is used to connect to an external air source for air blowing, which facilitates demolding; and a fixed cover plate is used to seal and fix the lower mold to facilitate demolding.

[0022] 3. The single-action press stretching die structure for automotive body panels has the following advantages: it facilitates demolding during processing, reduces stamping time, improves the production efficiency of automotive body panels, makes stamping more stable, prevents damage to raw materials, and does not affect product quality. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the cross-sectional structure of the rear side of this utility model;

[0025] Figure 3 This is a partial cross-sectional view of the stretching and stamping unit of this utility model.

[0026] In the diagram: 1 Support base plate, 2 Fixed frame, 3 Stretching and stamping unit, 31 Lower mold, 32 Push rod fixing shell, 33 Electric push rod, 34 Moving fixed plate, 35 Limiting cylinder, 36 Limiting sleeve, 37 Mold cavity, 38 Movable cylinder, 39 Mold protrusion one, 310 Buffer damper, 311 Snap-fit ​​rectangular plate, 312 Mold protrusion two, 4 Air blowing demolding unit, 41 Power pump, 42 Fixed support frame, 43 Air blowing nozzle, 44 External connecting pipe, 45 Fixed cover plate. Detailed Implementation

[0027] 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.

[0028] Please see Figure 1-3 This embodiment provides a technical solution: a stretching die structure for a single-action press for automotive body panels, including a support base plate 1, a stretching and stamping unit 3, and an air blowing demolding unit 4;

[0029] Support base plate 1: A stable support leg is fixedly connected to each of the four corners of the lower surface. A fixing frame 2 is provided on the upper surface of the support base plate 1. A stretching and stamping unit 3 is provided in the fixing frame 2 on the support base plate 1. An air blowing demolding unit 4 is provided in the lower mold 31 on the stretching and stamping unit 3.

[0030] The stretching and stamping unit 3 includes a lower die 31, a push rod fixing shell 32, an electric push rod 33, a movable fixing plate 34, a limiting cylinder 35, and a limiting sleeve 36. A lower die 31 is set on the upper surface of the support base plate 1 between the fixing frame 2. A limiting sleeve 36 is fixedly connected to each of the four corners of the upper side of the lower die 31. A push rod fixing shell 32 is fixedly connected to the fixing frame 2. An electric push rod 33 is fixedly connected inside the push rod fixing shell 32. The extended end of the electric push rod 33 passes through the fixing frame 2 and is fixedly connected to the movable fixing plate 34. The movable fixing plate 34 corresponds to the lower die 31. A limiting cylinder 35 is fixedly connected to each of the four corners of the lower surface of the movable fixing plate 34. The four limiting cylinders 35 are fixedly inserted into the corresponding limiting sleeves 36. The input end of the electric push rod 33 is electrically connected to the output end of an external power supply through an external control switch group.

[0031] The support base plate 1 is used for assembly, the fixing bracket 2 is used for fixing the assembly, and it is convenient for processing. The stretching and stamping unit 3 is used for stamping. The air blowing and demolding unit 4 is used for demolding after processing. The lower mold 31 is used to support the raw material, and it is convenient for stamping. The push rod fixing shell 32 is used to fix the electric push rod 33. When the electric push rod 33 is activated, it provides power for stamping. The movable fixing plate 34 is used to fix and install the mold protrusion 1 39 and the mold protrusion 2 312. The movable fixing plate 34 moves to adjust the position for stamping. The limiting cylinder 35 and the limiting sleeve 36 cooperate to make the upper and lower molds more stable, and facilitate stamping and processing.

[0032] The stretching and stamping unit 3 also includes a buffer damper 310, a snap-fit ​​rectangular plate 311, and a second mold protrusion 312. The lower surface of the movable fixed plate 34 is provided with four rectangular array of circular holes. Each circular hole is provided with a buffer damper 310. Each buffer damper 310 is fixedly connected to a snap-fit ​​rectangular plate 311 at its lower end. A second mold protrusion 312 is fixedly connected to each of the four snap-fit ​​rectangular plates 311.

[0033] The buffer damper 310 is used to buffer during stamping, making the stamping more stable. The snap-fit ​​rectangular plate 311 is used to fix the mold protrusion 312. The mold protrusion 312 is used for stamping and thus for processing.

[0034] The stretching and stamping unit 3 also includes a movable cylinder 38 and a first mold protrusion 39. A limiting groove is opened on the lower surface of the movable fixing plate 34 at the left and right sides of the second mold protrusion 312. A movable cylinder 38 is fixedly connected in each limiting groove. The two movable cylinders 38 are movably connected to the first mold protrusion 39 by torsion springs. The positions of the two first mold protrusions 39 are higher than the second mold protrusion 312.

[0035] The movable cylinder 38 is used to fix the mold protrusion 39. The mold protrusion 39 is used to stamp the raw material, which facilitates one-time stamping production and stretching.

[0036] The stretching and stamping unit 3 also includes a mold cavity 37. The mold cavity 37 is provided on the lower mold 31, and the mold cavity 37 corresponds to the mold protrusion 39 and the mold protrusion 312.

[0037] The mold cavity 37 is used to mate with mold protrusion 1 39 and mold protrusion 2 312 for stamping processing, thereby facilitating the production of automotive body panels, stretching mold production, and processing.

[0038] The air-blowing demolding unit 4 includes a power pump 41, a fixed support frame 42, and an air-blowing nozzle 43. A rectangular snap-fit ​​groove is provided on the rear side of the lower mold 31, located below the mold cavity 37. Multiple demolding air vents are provided on the mold cavity 37. The lower surface of the rectangular snap-fit ​​groove is fixedly connected to the power pump 41 through a support base. The air vent on the power pump 41 is fixedly connected to one end of a connecting pipe. A fixed support frame 42 is provided on the left and right sides of the rectangular snap-fit ​​groove. An air-blowing nozzle 43 is fixedly connected to the two fixed support frames 42. The air vent on the air-blowing nozzle 43 corresponds to the demolding air vent on the mold cavity 37. The other end of the connecting pipe is fixedly snapped to the air inlet on the air-blowing nozzle 43. The input end of the power pump 41 is electrically connected to the output end of an external power supply through an external control switch group.

[0039] The power pump 41 is started to provide power for blowing air. The fixed support frame 42 is used to fix the blowing nozzle 43. The blowing nozzle 43 is used for blowing air to perform demolding and facilitate demolding processing.

[0040] The air blowing demolding unit 4 also includes an external connecting pipe 44 and a fixed cover plate 45. The air inlet on the power pump 41 is fixedly connected to the external connecting pipe 44. A fixed cover plate 45 is fixedly connected in the rectangular snap-fit ​​groove. The rear end of the external connecting pipe 44 passes through the fixed cover plate 45 and is connected to an external air source.

[0041] The external connection pipe 44 is used to connect to an external air source for blowing air, which facilitates demolding. The fixed cover plate 45 is used to seal and fix the lower mold 31 for protection.

[0042] The working principle of the single-action press stretching die structure for automotive body panels provided by this utility model is as follows: First, the lower die 31 is used to support the raw material for easy stamping. The push rod fixing shell 32 is used to fix the electric push rod 33. The electric push rod 33 is activated to provide power for stamping. The movable fixing plate 34 is used to fix and install the die protrusion 1 39 and the die protrusion 2 312. The movable fixing plate 34 moves to adjust the position for stamping. The limiting cylinder 35 and the limiting sleeve 36 cooperate. The buffer damper 310 is used to buffer the stamping process and make the stamping more stable. The rectangular plate 311 is used for... The mold protrusion 312 is fixed and used for stamping. The movable cylinder 38 is used to fix the mold protrusion 39, which is used to stamp the raw material. The mold cavity 37 is used to cooperate with the mold protrusion 39 and the mold protrusion 312 for processing. Then, the power pump 41 is started to provide power for blowing air. The fixed support frame 42 is used to fix the blowing nozzle 43, which is used for blowing air. The external connecting pipe 44 is used to connect to the external air source for blowing air, which facilitates demolding. The fixed cover plate 45 is used to seal and fix the lower mold 31 for demolding and material removal.

[0043] It is worth noting that the core chip of the external control switch group disclosed in the above embodiments is a PLC microcontroller, and the external control switch group controls the operation of the power pump 41 and the electric push rod 33 using methods commonly used in the prior art.

[0044] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A draw die structure for a single action press for automobile panel, characterized by: Including support base plate (1), stretch stamping unit (3) and blow demolding unit (4); The support base plate (1) is provided with a fixed frame (2) on the upper surface, the fixed frame (2) on the support base plate (1) is provided with a stretch stamping unit (3), and the lower die (31) on the stretch stamping unit (3) is provided with a blow demolding unit (4); The stretch stamping unit (3) comprises a lower die (31), a push rod fixed shell (32), an electric push rod (33), a movable fixed plate (34), a limiting cylinder (35) and a limiting round sleeve (36), the support base plate (1) is provided with a lower die (31) on the upper surface between the fixed frames (2), the lower die (31) is fixedly connected with a limiting round sleeve (36) at the corresponding position of the four corners on the upper side, the fixed frame (2) is fixedly connected with a push rod fixed shell (32), the push rod fixed shell (32) is fixedly connected with an electric push rod (33) inside, the extension end of the electric push rod (33) is fixedly connected with a movable fixed plate (34) through the fixed frame (2), the movable fixed plate (34) corresponds to the lower die (31), the movable fixed plate (34) is fixedly connected with a limiting cylinder (35) at the corresponding position of the four corners on the lower side, the four limiting cylinders (35) are fixedly inserted into the corresponding limiting round sleeves (36), and the input end of the electric push rod (33) is electrically connected with the output end of an external power supply through an external control switch group.

2. The draw bench of the single action press for an automotive panel according to claim 1, wherein: The stretch stamping unit (3) further comprises a buffer damper (310), a clamping rectangular plate (311) and a die bump two (312), the movable fixed plate (34) is provided with four rectangular array round holes on the lower surface, one buffer damper (310) is arranged in each round hole, one clamping rectangular plate (311) is fixedly connected to the lower end of each buffer damper (310), and one die bump two (312) is fixedly connected to each of the four clamping rectangular plates (311).

3. The drawing die structure of a single action press for an automotive panel according to claim 2, wherein: The stretch stamping unit (3) further comprises a movable cylinder (38) and a die bump one (39), the movable fixed plate (34) is provided with a limiting groove on the lower surface at the positions corresponding to the left and right sides of the die bump two (312), a movable cylinder (38) is fixedly connected in each limiting groove, and the two movable cylinders (38) are movably connected with a die bump one (39) through a torsional spring, and the positions of the two die bump ones (39) are higher than those of the die bump two (312).

4. The draw bench of the single action press for an automotive panel according to claim 3, wherein: The stretch stamping unit (3) further comprises a die cavity (37), the die cavity (37) is arranged on the lower die (31), and the die cavity (37) corresponds to the die bump one (39) and the die bump two (312).

5. The draw die structure of a single action press for an automotive panel according to claim 1, wherein: The blowing demolding unit (4) comprises a power pump (41), a fixed support frame (42) and a blowing nozzle (43), a rectangular clamping groove is arranged at the lower side of the mold cavity (37) behind the lower mold (31), a plurality of demolding air outlets are arranged on the mold cavity (37), the lower end surface of the rectangular clamping groove is fixedly connected with the power pump (41) through a support seat, the air outlet on the power pump (41) is fixedly connected with one end of a communication pipeline, the left and right sides of the rectangular clamping groove are respectively provided with a fixed support frame (42), the two fixed support frames (42) are fixedly connected with a blowing nozzle (43), the air outlet on the blowing nozzle (43) corresponds to the demolding air outlet on the mold cavity (37), the other end of the communication pipeline is fixedly connected with the air inlet on the blowing nozzle (43), and the input end of the power pump (41) is electrically connected with the output end of an external power supply through an external control switch group.

6. The drawbench of the single action press for an automotive panel according to claim 5, wherein: The blowing demolding unit (4) further comprises an external connecting pipeline (44) and a fixed cover plate (45), the air inlet on the power pump (41) is fixedly connected with the external connecting pipeline (44), one fixed cover plate (45) is fixedly connected in the rectangular clamping groove, and the rear end of the external connecting pipeline (44) is connected with an external air source through the fixed cover plate (45).

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