Stamping die for anti-channeling positioning of automobile covering part

Abstract

The utility model relates to the technical field of stamping dies, in particular to a stamping die for anti-channeling positioning of an automobile covering part, which comprises a base, a positioning mechanism and an ejection mechanism. Supporting feet are arranged on the base, a lower die base is arranged on the supporting feet, and a male die is arranged on the lower die base. The positioning mechanism comprises a limiting plate, a first abutting plate and a second abutting plate, wherein the first abutting plate and the second abutting plate are arranged on the limiting plate. A sliding block with an inclined face is arranged on the limiting plate. The material ejecting mechanism comprises a first hydraulic cylinder arranged on the base, a lifting plate in driving connection with the first hydraulic cylinder, two supporting columns symmetrically distributed on the lifting plate, connecting blocks arranged on the supporting columns, a fixing plate arranged on the connecting blocks and a wedge block arranged on the fixing plate. The wedge block is slidably connected with the sliding block. According to the utility model, not only can a good limiting effect be achieved on the plate, the shifting condition during processing be avoided, but also the limiting effect can be automatically relieved during demolding, and the use convenience of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, and in particular to a stamping die for preventing misalignment and positioning of automotive body panels. Background Technology

[0002] The exterior of a car body is welded together from many large-scale body panels with spatial curved shapes. High requirements are placed on the dimensional accuracy and surface quality of these body panels, so some body panels require high-precision molds for production.

[0003] Chinese Patent Publication No. CN116116944A discloses a stamping die for anti-slip positioning of automotive body panels, including an upper die base, a lower die base, a base, an ejector mechanism, and an anti-slip component. The upper die base has a die cavity at its bottom, the lower die base is located below the upper die base, and a punch is located at its top. The die cavity can move downwards to abut against the punch. The base is fixedly connected to the bottom of the lower die base via a support frame to support the lower die base. The ejector mechanism is mounted on the base to lift the sheet metal on the punch. The anti-slip component is located at both ends of the base to limit the sheet metal on the punch. This device uses two limiting vertical plates to limit and fix the sheet metal placed on the punch, preventing slippage when the sheet metal is squeezed by the die cavity. Furthermore, the limitation of the two vertical plates at the moment the die cavity returns also prevents the sheet metal from jumping up and down or moving left and right within a certain range after forming. A driving component can drive the ejector rod to move upwards to lift the sheet metal.

[0004] However, the above technical solution has the following shortcomings: when the device drives the limiting vertical plate to move, the second rack abuts against the limiting vertical plate through the meshing connection of the first rack and the second rack. The rack-to-rack connection method not only makes it difficult to achieve a stable transmission pair, but also the first rack is made of soft material, making it difficult to ensure the accuracy of the path when the first rack moves. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a stamping die for preventing cross-movement of automotive body panels. This die not only effectively restricts the sheet metal to prevent cross-movement during processing, but also automatically releases the restriction during demolding, improving the ease of use of the device.

[0006] The present invention provides a stamping die for anti-slip positioning of automotive body panels, comprising a base, a positioning mechanism, and an ejector mechanism. The base has supporting legs, a lower die base is mounted on the supporting legs, and a punch is mounted on the lower die base. The positioning mechanism includes a limiting plate and a first abutting plate and a second abutting plate mounted on the limiting plate. A slider with an inclined surface is mounted on the limiting plate. The ejector mechanism includes a first hydraulic cylinder mounted on the base, a lifting plate driven and connected to the first hydraulic cylinder, two symmetrically distributed support columns on the lifting plate, a connecting block mounted on the support columns, a fixing plate mounted on the connecting block, and a wedge block mounted on the fixing plate. The wedge block and the slider are slidably connected.

[0007] Preferably, the positioning mechanism further includes two fixed seats disposed on the base, a slidably connected to the fixed seats, and a spring sleeved on the slidably connected to the fixed seats and respectively disposed on the fixed seats and the limiting plate; the limiting plate is disposed on the slidably connected to the slidly connected to the base.

[0008] Preferably, the limiting plate is provided with a support block, and the base is provided with a groove for the support block to slide horizontally.

[0009] Preferably, the bottom height of the first abutment plate is higher than the horizontal height of both sides of the top surface of the punch.

[0010] Preferably, the connecting block is provided with a top block, which is slidably disposed inside the punch.

[0011] Preferably, the connecting block is provided with a T-shaped guide block and a reinforcing plate, the lower mold base is provided with a limiting groove for the guide block to slide vertically, and the reinforcing plate is provided on the fixed plate.

[0012] Preferably, two uprights are provided on the base and the lower mold base, and the lifting plate is slidably connected to the uprights.

[0013] Preferably, a support frame is provided on the base, and a second hydraulic cylinder is provided on the support frame. The second hydraulic cylinder is driven and connected to the upper mold base.

[0014] Compared with the prior art, the present invention has the following beneficial technical effects:

[0015] This utility model, through its positioning mechanism, can effectively position and stabilize the sheet metal, preventing movement during processing. Furthermore, the ejector mechanism automatically releases the positioning mechanism's constraint on the sheet metal during demolding, improving the ease of use. The guide block and limiting groove further limit the ejection distance, preventing the wedge and slider from separating from their respective inclined surfaces, thus demonstrating excellent practicality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a structural cross-sectional view of an embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the positioning mechanism of this utility model;

[0019] Figure 4 This is a partial structural diagram of the material feeding mechanism of this utility model.

[0020] Reference numerals: 1. Base; 2. Support leg; 3. Lower mold base; 4. Punch; 5. Fixed base; 6. Stabilizing rod; 7. Limiting plate; 8. Spring; 9. First abutment plate; 10. Second abutment plate; 11. Support block; 12. Slider; 13. First hydraulic cylinder; 14. Lifting plate; 15. Support column; 16. Connecting block; 17. Top block; 18. Fixed plate; 19. Wedge block; 20. Reinforcing plate; 21. Guide block; 22. Vertical rod; 23. Support frame; 24. Second hydraulic cylinder; 25. Upper mold base. Detailed Implementation

[0021] Example 1

[0022] like Figures 1-4 As shown in the figure, the stamping die for anti-slip positioning of automotive body panels proposed in this embodiment includes a base 1, a positioning mechanism and an ejector mechanism; the base 1 is provided with a support leg 2, the support leg 2 is provided with a lower die base 3, and the lower die base 3 is provided with a punch 4.

[0023] The positioning mechanism includes a limiting plate 7 and a first abutting plate 9 and a second abutting plate 10 disposed on the limiting plate 7. A slider 12 with an inclined surface is disposed on the limiting plate 7. The positioning mechanism also includes two fixed seats 5 disposed on the base 1, a slidably connected to the fixed seats 5, and a spring 8 sleeved on the slidably connected to the slidably connected to the fixed seats 5 and the limiting plate 7 respectively. The limiting plate 7 is disposed on the slidably connected to the slidably connected to the slidably connected to the slidly connected to the fixed seats 5 and the limiting plate 7 respectively. The bottom end of the first abutting plate 9 is higher than the horizontal height of the two sides of the top surface of the punch 4.

[0024] When the sheet is placed on the punch 4, the spring 8 is always in a compressed state, which makes the limiting plate 7 limit and fix the two sides of the sheet. When the stamping die is closed, the sheet is squeezed and shaped. At this time, the restoring force of the spring 8 makes the two limiting plates 7 always limit and fix the sheet. The sheet is initially in contact with the first abutting plate 9. As the stamping process progresses, the sheet eventually abuts with the second abutting plate 10. This makes the squeezing force of the limiting plate 7 on the sheet only have a horizontal force and will not cause vertical jumping or horizontal movement, thus avoiding affecting the accuracy of the sheet.

[0025] The top material mechanism includes a first hydraulic cylinder 13 mounted on the base 1, a lifting plate 14 driven and connected to the first hydraulic cylinder 13, two support columns 15 symmetrically distributed on the lifting plate 14, a connecting block 16 mounted on the support column 15, a fixing plate 18 mounted on the connecting block 16, and a wedge block 19 mounted on the fixing plate 18; the wedge block 19 and the slider 12 are slidably connected.

[0026] A top block 17 is provided on the connecting block 16. The top block 17 is slidably disposed inside the punch 4. A T-shaped guide block 21 and a reinforcing plate 20 are provided on the connecting block 16. A limiting groove for the guide block 21 to slide vertically is provided inside the lower die base 3. The reinforcing plate 20 is disposed on the fixed plate 18.

[0027] After the sheet metal is formed, it needs to be demolded. The first hydraulic cylinder 13 is activated to drive the lifting plate 14 to rise. The lifting plate 14 drives the support column 15 and the connecting block 16 to rise, so that the wedge block 19 on the fixed plate 18 and the slider 12 on the limiting plate 7 are pressed against each other. Then the wedge block 19 and the slider 12 slide through the inclined surface, so that the slider 12 slides inside the lower mold base 3. Then the limiting plate 7 drives the second abutment plate 10 away from the sheet metal, no longer fixing the sheet metal. At the same time, the connecting block 16 drives the top block 17 to rise and separate the sheet metal from the punch 4 so that the formed sheet metal can be removed. The guide block 21 and the limiting groove not only guide and stabilize the movement of the connecting block 16, but also limit the rising distance to prevent the inclined surface of the wedge block 19 and the slider 12 from separating, ensuring the normal use of subsequent equipment and having good practicality.

[0028] Example 2

[0029] like Figure 2 and Figure 3 As shown in the figure, this embodiment proposes a stamping die for anti-slip positioning of automotive body panels. Compared with the first embodiment, in this embodiment, a support block 11 is provided on the limiting plate 7, and a groove is provided on the base 1 for the support block 11 to slide horizontally. The support block 11 plays a supporting and stabilizing role for the limiting plate 7, ensuring the stability of the limiting plate 7 in the vertical direction. Two uprights 22 are provided on the base 1 and the lower die base 3. The lifting plate 14 is slidably connected to the uprights 22. The uprights 22 play a stabilizing role on both sides of the lifting plate 14, improving the stability during lifting.

[0030] Example 3

[0031] like Figure 1As shown in the figure, this embodiment proposes a stamping die for anti-slip positioning of automotive body panels. Compared with the first embodiment, in this embodiment, a support frame 23 is provided on the base 1, and a second hydraulic cylinder 24 is provided on the support frame 23. The second hydraulic cylinder 24 is connected to the upper die base 25. When the die is closed to perform a stamping operation on the sheet metal, the second hydraulic cylinder 24 is activated to drive the upper die base 25, so that the die on the upper die base 25 moves downward until it closes with the punch 4, thereby performing stamping processing on the sheet metal.

[0032] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A stamping die for the anti-slip positioning of an automotive panel, characterized in that, The utility model relates to a die set, which comprises a base (1) provided with a supporting leg (2), the supporting leg (2) is provided with a lower die seat (3), the lower die seat (3) is provided with a male die (4); a positioning mechanism comprising a limiting plate (7) and a first abutting plate (9) and a second abutting plate (10) provided on the limiting plate (7), the limiting plate (7) is provided with a sliding block (12) with an inclined surface; a material lifting mechanism comprising a first hydraulic cylinder (13) provided on the base (1), a lifting plate (14) drivingly connected with the first hydraulic cylinder (13), two supporting columns (15) symmetrically distributed on the lifting plate (14), a connecting block (16) provided on the supporting column (15), a fixed plate (18) provided on the connecting block (16), and a wedge block (19) provided on the fixed plate (18); the wedge block (19) and the sliding block (12) are slidingly connected. The positioning mechanism further comprises two fixed seats (5) provided on the base (1), a stabilizing rod (6) slidingly connected on the fixed seat (5), and a spring (8) sleeved on the stabilizing rod (6) and provided at two ends on the fixed seat (5) and the limiting plate (7) respectively; the limiting plate (7) is provided on the stabilizing rod (6). The limiting plate (7) is provided with a supporting block (11), and the base (1) is provided with a groove for horizontal sliding of the supporting block (11). The bottom end of the first abutting plate (9) is higher than the horizontal surface on the top surface of the male die (4).

2. The stamping die for anti-shift positioning of an automobile covering part according to claim 1, characterized in that, The connecting block (16) is provided with a top block (17) slidingly arranged in the male die (4).

3. The stamping die for anti-shift positioning of an automotive panel according to claim 2, wherein The connecting block (16) is provided with a T-shaped guide block (21) and a reinforcing plate (20), the lower die seat (3) is provided with a limiting groove for vertical sliding of the guide block (21), and the reinforcing plate (20) is arranged on the fixed plate (18).

4. The stamping die for anti-shift positioning of an automobile panel according to claim 1, wherein The base (1) and the lower die seat (3) are provided with two vertical rods (22), and the lifting plate (14) is slidingly connected on the vertical rods (22).

5. The stamping die for anti-shift positioning of an automotive panel according to claim 1, wherein The base (1) is provided with a supporting frame (23), the supporting frame (23) is provided with a second hydraulic cylinder (24), and the second hydraulic cylinder (24) is drivingly connected with an upper die seat (25).

6. The stamping die for anti-shift positioning of an automotive panel according to claim 1, wherein ​ 7. The stamping die for anti-shift positioning of an automotive panel according to claim 1, wherein ​ 8. The stamping die for anti-shift positioning of an automotive panel according to claim 1, wherein ​

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