Central channel upper reinforcing plate hot stamping die convenient to demould

Abstract

The invention discloses a central channel upper reinforcing plate hot stamping die convenient to demould, and belongs to the technical field of hot stamping dies, the central channel upper reinforcing plate hot stamping die convenient to demould comprises a workbench, support legs are fixed on two sides of the lower end of the workbench, supports are fixed on two sides of the upper end of the workbench, a top plate is fixed on the upper ends of the supports, and a stamping cylinder is mounted in the middle of the upper end of the top plate; through the arrangement of the material jacking assembly, a blank pushes a jacking rod and a sliding plate to move into a vertical cavity during punching work, the sliding plate pushes hydraulic oil to enter a transverse cavity through a communicating cavity, the hydraulic oil pushes a piston plate to compress a material jacking spring, and the material jacking spring is pressed; when the upper die is moved out of the lower die, the ejector spring elastically stretches to push the piston plate to reset, the piston plate pushes hydraulic oil back into the vertical cavity, the sliding plate and the ejector rod move upwards to eject the central channel reinforcing plate formed in the lower die out of the lower die through the ejector rod, the formed central channel reinforcing plate is conveniently ejected out of the lower die by arranging the ejector assembly, and material taking is convenient.

Description

Technical Field

[0001] This invention belongs to the field of hot stamping die technology, specifically relating to a hot stamping die with a central channel upper reinforcing plate that facilitates demolding. Background Technology

[0002] Hot stamping dies are specialized tools used for the thermoplastic forming of metals. Their core function is to strengthen materials through high-temperature stamping and die hardening, and they are widely used in the manufacture of automotive safety components. The central tunnel reinforcement plate is a crucial component in the automotive body structure, primarily used to enhance body rigidity and collision safety.

[0003] Existing technologies have the following problems: 1. The existing hot stamping die for the central channel reinforcement plate makes it inconvenient to demold the central channel reinforcement plate in the lower die after stamping the central channel reinforcement plate of the automotive part, which is not conducive to material removal; 2. The existing hot stamping die for the central channel reinforcement plate does not have a buffer function and cannot buffer and reduce the shock of the lower die. The lower die is prone to aging or cracking when subjected to huge impacts, which affects its service life. 3. The existing hot stamping die for the central channel reinforcement plate cannot guide and limit the upper and lower dies. After long-term use, the upper die and the lower die may not be able to maintain coaxiality during the downward movement, resulting in displacement and lateral force. Summary of the Invention

[0004] To address the problems mentioned in the background art, the present invention provides a hot stamping die with a central channel upper reinforcing plate that facilitates demolding, and features easy demolding and material removal, as well as buffering and shock absorption for the lower die.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a hot stamping die for a central channel upper reinforcing plate that facilitates demolding, comprising a worktable, support legs fixed on both sides of the lower end of the worktable, brackets fixed on both sides of the upper end of the worktable, a top plate fixed on the upper end of the brackets, a stamping cylinder installed in the middle of the upper end of the top plate, an upper die provided at the output end of the stamping cylinder, a lower die provided at the upper end of the worktable corresponding to the upper die, a guide component provided between the upper die and the lower die, a shock-absorbing component connected to the worktable, and an ejector component provided in the lower die; The ejector assembly includes a vertical cavity. Two vertical cavities are provided in the worktable. An oil injection channel is provided at the front end of the vertical cavity. An oil injection valve is provided at the front end of the lower mold corresponding to the oil injection channel. A connecting cavity is provided on the lower side of one end of the vertical cavity. A horizontal cavity is provided at the other end of the connecting cavity. A piston plate is slidably connected in the horizontal cavity. An ejector spring is provided at one end of the piston plate. A sliding plate is slidably connected in the vertical cavity. An ejector rod is fixed at the upper end of the sliding plate.

[0006] Furthermore, the lower mold has a sliding hole corresponding to the ejector pin, and the side of the ejector pin fits against the inner wall of the sliding hole.

[0007] Furthermore, when the upper end of the push rod is flush with the lower end of the lower mold, the lower end of the sliding plate is higher than the upper end of the connecting cavity, and the push rod and the sliding plate are a welded integral structure.

[0008] Furthermore, the shock absorption assembly includes a vertical plate, vertical plates are fixed on both sides of the lower end of the lower mold, a fixed frame is fixed at the lower end of the worktable corresponding to the position of the vertical plate, a horizontal plate is fixed at the lower end of the vertical plate, a movable plate is slidably connected on both sides of the lower end inside the fixed frame, a sliding groove corresponding to the movable plate is opened at the lower end inside the fixed frame, the movable plate and the horizontal plate are connected by a rotating rod, damping rods are fixed on both sides between the movable plate and the fixed frame, and a shock absorption spring is sleeved on the outside of the damping rod between the movable plate and the fixed frame.

[0009] Furthermore, several rubber strips are fixed at the upper end of the worktable corresponding to the lower mold, and the rubber strips are glued to the worktable.

[0010] Furthermore, both ends of the horizontal plate are fitted to the inner wall of the fixed frame, and the rotating rod and the moving plate, as well as the rotating rod and the horizontal plate, are connected by rotation.

[0011] Furthermore, the guiding component includes a folding plate, the upper sides of both ends of the lower mold are fixed with folding plates, and I-shaped blocks are fixed at both ends of the upper mold at positions corresponding to the folding plates. The I-shaped blocks are connected and fixed to the upper mold through connecting columns, and rectangular grooves corresponding to the I-shaped blocks are opened in the folding plates.

[0012] Furthermore, several triangular plates are fixed at the lower end between the folding plate and the lower mold, and the folding plate and the lower mold, as well as the connecting column and the upper mold, are all welded by pressure welding.

[0013] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention, by setting an ejector assembly, allows the blank to push the ejector rod and slide plate into the vertical cavity during stamping. The slide plate pushes hydraulic oil into the horizontal cavity through the connecting cavity. The hydraulic oil pushes the piston plate to compress the ejector spring. When the upper mold moves out of the lower mold, the ejector spring extends and pushes the piston plate to reset. The piston plate pushes the hydraulic oil back into the vertical cavity. The slide plate and ejector rod move upward and eject the central channel reinforcing plate formed in the lower mold through the ejector rod. By setting the ejector assembly, it is easy to eject the formed central channel reinforcing plate out of the lower mold, which facilitates material removal.

[0014] 2. By setting up a buffer component, when the lower die is impacted during stamping, the lower die pushes the vertical plate to slide in the worktable, the vertical plate pushes the horizontal plate to move in the fixed frame, and the horizontal plate pushes the moving plate to move in the slide groove through the rotating rod. The moving plate compresses the damping rod and the shock-absorbing spring. The damping rod and the shock-absorbing spring can buffer and absorb the shock of the lower die, avoiding the lower die from being subjected to huge impacts for a long time, which can easily lead to aging or breakage, and improving the service life of the lower die.

[0015] 3. By setting up a guiding component, when the upper mold moves downward, the I-shaped block at one end of the connecting column at both ends of the upper mold slides in the rectangular groove of the folding plate. The sliding of the I-shaped block in the rectangular groove guides the movement of the upper mold, avoiding the upper mold from losing coaxiality with the lower mold during the downward movement due to prolonged use, thus preventing offset and lateral force. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present invention; Figure 2 This is a bottom-view perspective view of the present invention; Figure 3 This is a three-dimensional cross-sectional view of the mold of the present invention; Figure 4 This is a perspective view of the shock absorption component of the present invention; Figure 5 This is a perspective view of the guiding component of the present invention; In the diagram: 1. Workbench; 2. Ejector assembly; 21. Oil injection valve; 22. Oil injection channel; 23. Vertical cavity; 24. Slide plate; 25. Ejector rod; 26. Horizontal cavity; 27. Connecting cavity; 28. Piston plate; 29. ​​Ejector spring; 3. Shock absorption assembly; 31. Fixed frame; 32. Vertical plate; 33. Horizontal plate; 34. Moving plate; 35. Slide groove; 36. Rotating rod; 37. Damping rod; 38. Shock absorption spring; 39. Rubber strip; 4. Guide assembly; 41. Folding plate; 42. I-shaped block; 43. Connecting column; 44. Rectangular groove; 45. Triangular plate; 5. Support leg; 6. Lower mold; 7. Top plate; 8. Stamping cylinder; 9. Upper mold; 10. Bracket. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0018] Please see Figure 1-5The present invention provides the following technical solution: a hot stamping mold for a central channel upper reinforcing plate that is easy to demold, including a worktable 1, support legs 5 fixed on both sides of the lower end of the worktable 1, brackets 10 fixed on both sides of the upper end of the worktable 1, a top plate 7 fixed on the upper end of the brackets 10, a stamping cylinder 8 installed in the middle of the upper end of the top plate 7, an upper mold 9 provided at the output end of the stamping cylinder 8, a lower mold 6 provided at the position corresponding to the upper mold 9 on the upper end of the worktable 1, a guide component 4 provided between the upper mold 9 and the lower mold 6, a shock-absorbing component 3 connecting the lower mold 6 and the worktable 1, and an ejector component 2 provided in the lower mold 6; The ejector assembly 2 includes a vertical cavity 23. Two vertical cavities 23 are provided in the worktable 1. An oil injection channel 22 is provided at the front end of the vertical cavity 23. An oil injection valve 21 is provided at the front end of the lower mold 6 at the position corresponding to the oil injection channel 22. A connecting cavity 27 is provided on the lower side of one end of the vertical cavity 23. A horizontal cavity 26 is provided at the other end of the connecting cavity 27. A piston plate 28 is slidably connected in the horizontal cavity 26. An ejector spring 29 is provided at one end of the piston plate 28. A sliding plate 24 is slidably connected in the vertical cavity 23. An ejector rod 25 is fixed at the upper end of the sliding plate 24.

[0019] Furthermore, in this invention, the lower mold 6 has a sliding hole corresponding to the ejector pin 25, and the side of the ejector pin 25 is in contact with the inner wall of the sliding hole.

[0020] By adopting the above technical solution, the ejector pin 25 can slide in the lower mold 6, and the ejector pin 25 fits more closely with the sliding hole.

[0021] Furthermore, in this invention, when the upper end of the push rod 25 is flush with the lower end of the interior of the lower mold 6, the lower end of the slide plate 24 is higher than the upper end of the connecting cavity 27, and the push rod 25 and the slide plate 24 are a welded integral structure.

[0022] By adopting the above technical solution, when the upper end of the ejector rod 25 is flush with the lower end of the lower mold 6, the hydraulic oil in the connecting cavity 27 enters the upper side of the slide plate 24. The ejector rod 25 and the slide plate 24 are welded as one piece, making them more robust and durable.

[0023] In this embodiment, when using the hot stamping die for the central channel reinforcing plate that facilitates demolding, the device is installed in a suitable position, the blank is placed in the lower die 6, the stamping cylinder 8 is turned on to push the upper die 9 downward, the upper die 9 cooperates with the lower die 6 to perform stamping work. Before the stamping work, hydraulic oil is added to the vertical cavity 23 through the oil injection valve 21 and the oil injection channel 22. The oil injection valve 21 is closed. When the stamping work is performed, the blank pushes the ejector rod 25 and the slide plate 24 to move into the vertical cavity 23. The slide plate 24 pushes the hydraulic oil through the connecting cavity 27 into the horizontal cavity 26. The hydraulic oil pushes the piston plate 28 to compress the ejector spring 29. When the upper die 9 moves out of the lower die 6, the ejector spring 29 springs out and pushes the piston plate 28 to reset. The piston plate 28 pushes the hydraulic oil back into the vertical cavity 23. The slide plate 24 and the ejector rod 25 move upward and eject the central channel reinforcing plate formed in the lower die 6 through the ejector rod 25. The ejector assembly 2 is set to facilitate the ejection of the formed central channel reinforcing plate from the lower die 6, which is convenient for material removal. Example

[0024] The difference between this embodiment and embodiment 1 is that: the shock absorption component 3 includes a vertical plate 32, the lower mold 6 has vertical plates 32 fixed on both sides of its lower end, the workbench 1 has a fixed frame 31 fixed at the position corresponding to the vertical plate 32 at its lower end, the vertical plate 32 has a horizontal plate 33 fixed at its lower end, the fixed frame 31 has a movable plate 34 slidably connected on both sides of its lower end, the fixed frame 31 has a groove 35 corresponding to the movable plate 34 at its lower end, the movable plate 34 and the horizontal plate 33 are connected by a rotating rod 36, the movable plate 34 and the fixed frame 31 have damping rods 37 fixed on both sides, and the damping rods 37 between the movable plate 34 and the fixed frame 31 have shock absorption springs 38 sleeved on the outside of the damping rods 37.

[0025] By adopting the above technical solution, when the lower die 6 is impacted during the stamping operation, the lower die 6 pushes the vertical plate 32 to slide in the worktable 1, the vertical plate 32 pushes the horizontal plate 33 to move in the fixed frame 31, and the horizontal plate 33 pushes the moving plate 34 to move in the slide groove 35 through the rotating rod 36. The moving plate 34 compresses the damping rod 37 and the shock-absorbing spring 38. The damping rod 37 and the shock-absorbing spring 38 can buffer and reduce the shock of the lower die 6, preventing the lower die 6 from being easily aged or broken due to long-term exposure to huge impacts, and improving the service life of the lower die 6.

[0026] Furthermore, in this invention, a plurality of rubber strips 39 are fixed at the upper end of the workbench 1 at the position corresponding to the lower mold 6, and the rubber strips 39 are bonded and fixed to the workbench 1 with glue.

[0027] By adopting the above technical solution, the rubber strip 39 at the upper end of the worktable 1 can buffer the lower end of the mold 6 from contacting the worktable 1.

[0028] Furthermore, in this invention, both ends of the horizontal plate 33 are fitted to the inner wall of the fixed frame 31, and the rotating rod 36 and the moving plate 34, as well as the rotating rod 36 and the horizontal plate 33, are rotatably connected.

[0029] By adopting the above technical solution, the horizontal plate 33 slides more stably in the fixed frame 31, and the rotating rod 36 can rotate between the moving plate 34 and the horizontal plate 33.

[0030] In this embodiment, when the stamping operation is performed, the lower die 6 is impacted. The lower die 6 pushes the vertical plate 32 to slide in the worktable 1. The vertical plate 32 pushes the horizontal plate 33 to move in the fixed frame 31. The horizontal plate 33 pushes the moving plate 34 to move in the slide groove 35 through the rotating rod 36. The moving plate 34 compresses the damping rod 37 and the shock-absorbing spring 38. The damping rod 37 and the shock-absorbing spring 38 can buffer and absorb the shock of the lower die 6, preventing the lower die 6 from being easily aged or broken due to long-term exposure to huge impacts, and improving the service life of the lower die 6. At the same time, the rubber strip 39 at the upper end of the worktable 1 can buffer the lower end of the lower die 6 from contacting the worktable 1. Example

[0031] The difference between this embodiment and embodiments 1 and 2 is that the guide component 4 includes a folding plate 41, the upper sides of both ends of the lower mold 6 are fixed with folding plates 41, and the upper mold 9 has I-shaped blocks 42 fixed at the positions corresponding to the folding plates 41 at both ends. The I-shaped blocks 42 are connected and fixed to the upper mold 9 through connecting columns 43. The folding plate 41 has a rectangular groove 44 corresponding to the I-shaped blocks 42.

[0032] By adopting the above technical solution, when the upper mold 9 moves downward, the I-shaped block 42 at one end of the connecting column 43 at both ends of the upper mold 9 slides in the rectangular groove 44 of the folding plate 41. The sliding of the I-shaped block 42 in the rectangular groove 44 plays a guiding role in the movement of the upper mold 9, avoiding the upper mold 9 from being unable to maintain coaxiality with the lower mold 6 during the downward process due to long-term use of the mold, thus causing offset and lateral force.

[0033] Furthermore, in this invention, a plurality of triangular plates 45 are fixed at the lower end between the folding plate 41 and the lower mold 6, and the folding plate 41 and the lower mold 6, as well as the connecting column 43 and the upper mold 9, are all welded by pressure welding.

[0034] By adopting the above technical solution, the triangular plate 45 fixed at the lower end between the folding plate 41 and the lower mold 6 can support the folding plate 41, improve the firmness between the folding plate 41 and the lower mold 6, and the pressure welding makes the folding plate 41 and the lower mold 6, as well as the connecting column 43 and the upper mold 9, even more solid.

[0035] In this embodiment, when the upper mold 9 moves downward, the I-shaped block 42 at one end of the connecting column 43 at both ends of the upper mold 9 slides in the rectangular groove 44 of the folding plate 41. The sliding of the I-shaped block 42 in the rectangular groove 44 guides the movement of the upper mold 9, preventing the upper mold 9 from losing coaxiality with the lower mold 6 during the downward movement due to prolonged use of the mold, thus causing offset and lateral force. At the same time, the triangular plate 45 fixed at the lower end between the folding plate 41 and the lower mold 6 can support the folding plate 41 and improve the firmness between the folding plate 41 and the lower mold 6.

[0036] In this invention, the stamping cylinder 8 is a prior art technology, and the selected model is MOB50*50.

[0037] In this invention, the damping rod 37 is a previously disclosed technology, and the selected model is SQS.

[0038] The working principle and usage process of this invention: When using the hot stamping die with a central channel reinforcing plate for easy demolding, install the device in a suitable position, place the blank into the lower die 6, and activate the stamping cylinder 8 to push the upper die 9 downward. The upper die 9 cooperates with the lower die 6 to perform the stamping operation. Before the stamping operation, hydraulic oil is added to the vertical cavity 23 through the oil injection valve 21 and the oil injection channel 22. The oil injection valve 21 is closed. During the stamping operation, the blank pushes the ejector rod 25 and the slide plate 24 to move into the vertical cavity 23. The slide plate 24 pushes the hydraulic oil through... The connecting cavity 27 enters the horizontal cavity 26. Hydraulic oil pushes the piston plate 28 to compress the ejector spring 29. When the upper mold 9 moves out of the lower mold 6, the ejector spring 29 extends and pushes the piston plate 28 to reset. The piston plate 28 pushes the hydraulic oil back into the vertical cavity 23. The sliding plate 24 and the ejector rod 25 move upward, and the ejector rod 25 ejects the central channel reinforcing plate formed in the lower mold 6 out of the lower mold 6. The ejector assembly 2 is set to facilitate the ejection of the central channel reinforcing plate from the lower mold 6, which is convenient for material removal. During the stamping operation, the lower mold 6 is impacted. The vertical plate 32 slides within the worktable 1, and the vertical plate 32 pushes the horizontal plate 33 to move within the fixed frame 31. The horizontal plate 33, via the rotating rod 36, pushes the moving plate 34 to move within the slide groove 35. The moving plate 34 compresses the damping rod 37 and the shock-absorbing spring 38. The damping rod 37 and the shock-absorbing spring 38 provide cushioning and shock absorption for the lower mold 6, preventing it from aging or breaking easily due to prolonged exposure to large impacts, thus extending the service life of the lower mold 6. Simultaneously, the rubber strip 39 at the upper end of the worktable 1 ensures that the lower mold 6 contacts the worktable at its lower end. 1. To provide buffering, when the upper mold 9 moves downward, the I-shaped block 42 at one end of the connecting column 43 at both ends of the upper mold 9 slides in the rectangular groove 44 of the folding plate 41. The sliding of the I-shaped block 42 in the rectangular groove 44 guides the movement of the upper mold 9, avoiding the upper mold 9 from losing coaxiality with the lower mold 6 during the downward movement due to prolonged use of the mold, thus causing offset and lateral force. At the same time, the triangular plate 45 fixed at the lower end between the folding plate 41 and the lower mold 6 can support the folding plate 41 and improve the firmness between the folding plate 41 and the lower mold 6.

[0039] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hot stamping die for a central channel reinforcing plate that facilitates demolding, comprising a worktable (1), characterized in that: The workbench (1) has support legs (5) fixed on both sides of its lower end, and brackets (10) fixed on both sides of its upper end. A top plate (7) is fixed on the upper end of the brackets (10). A stamping cylinder (8) is installed in the middle of the upper end of the top plate (7). An upper mold (9) is provided at the output end of the stamping cylinder (8). A lower mold (6) is provided at the position corresponding to the upper mold (9) on the upper end of the workbench (1). A guide component (4) is provided between the upper mold (9) and the lower mold (6). The lower mold (6) is connected to the workbench (1) through a shock-absorbing component (3). An ejector component (2) is provided in the lower mold (6). The top material assembly (2) includes a vertical cavity (23). Two vertical cavities (23) are opened in the worktable (1). An oil injection channel (22) is provided at the front end of the vertical cavity (23). An oil injection valve (21) is provided at the position corresponding to the oil injection channel (22) at the front end of the lower mold (6). A connecting cavity (27) is opened on the lower side of one end of the vertical cavity (23). A horizontal cavity (26) is provided at the other end of the connecting cavity (27). A piston plate (28) is slidably connected in the horizontal cavity (26). A top material spring (29) is provided at one end of the piston plate (28). A sliding plate (24) is slidably connected in the vertical cavity (23). A top rod (25) is fixed at the upper end of the sliding plate (24).

2. The hot stamping die for a central channel reinforcing plate that facilitates demolding, as described in claim 1, is characterized in that: The lower mold (6) has a sliding hole corresponding to the push rod (25), and the side of the push rod (25) is in contact with the inner wall of the sliding hole.

3. The hot stamping die for a central channel reinforcing plate that facilitates demolding, as described in claim 1, is characterized in that: The upper end of the push rod (25) is flush with the lower end of the interior of the lower mold (6), and the lower end of the sliding plate (24) is higher than the upper end of the connecting cavity (27). The push rod (25) and the sliding plate (24) are a welded integral structure.

4. The hot stamping die for a central channel reinforcing plate that facilitates demolding, as described in claim 1, is characterized in that: The shock-absorbing component (3) includes a vertical plate (32). The lower mold (6) is fixed with vertical plates (32) on both sides. The workbench (1) is fixed with a fixed frame (31) at the position corresponding to the vertical plate (32). The lower end of the vertical plate (32) is fixed with a horizontal plate (33). The lower end of the fixed frame (31) is slidably connected with a movable plate (34). The lower end of the fixed frame (31) is provided with a sliding groove (35) corresponding to the movable plate (34). The movable plate (34) and the horizontal plate (33) are connected by a rotating rod (36). The movable plate (34) and the fixed frame (31) are fixed with damping rods (37) on both sides. The damping rods (37) between the movable plate (34) and the fixed frame (31) are fitted with shock-absorbing springs (38) on the outside of the damping rods (37) between the movable plate (34) and the fixed frame (31).

5. A hot stamping die for a central channel reinforcing plate that facilitates demolding, as described in claim 4, characterized in that: Several rubber strips (39) are fixed at the upper end of the workbench (1) at the position corresponding to the lower mold (6), and the rubber strips (39) are glued to the workbench (1).

6. A hot stamping die for a central channel reinforcing plate that facilitates demolding, as described in claim 4, characterized in that: The two ends of the horizontal plate (33) are attached to the inner wall of the fixed frame (31), and the rotating rod (36) and the moving plate (34) and the rotating rod (36) and the horizontal plate (33) are connected by rotation.

7. A hot stamping die for a central channel reinforcing plate that facilitates demolding, as described in claim 1, characterized in that: The guide component (4) includes a folding plate (41). The upper sides of both ends of the lower mold (6) are fixed with folding plates (41). The upper mold (9) has I-shaped blocks (42) fixed at the positions corresponding to the folding plates (41) at both ends. The I-shaped blocks (42) are connected and fixed to the upper mold (9) through connecting columns (43). The folding plate (41) has a rectangular groove (44) corresponding to the I-shaped blocks (42).

8. A hot stamping die for a central channel reinforcing plate that facilitates demolding, as described in claim 7, characterized in that: Several triangular plates (45) are fixed at the lower end between the folding plate (41) and the lower mold (6). The folding plate (41) and the lower mold (6) as well as the connecting column (43) and the upper mold (9) are all welded by pressure welding.

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