An automatic corner angle correction mechanism

Abstract

The utility model belongs to the field of the processing technique of the injection sheet metal part, and relates to a kind of automatic angle rectification mechanism, including upper die, lower die, guiding mechanism being connected between upper die and lower die and positioning mechanism being located on lower die, the upper die includes upper supporting plate, upper die seat being fixed in the lower end surface of upper supporting plate and the upper die pressing core being vertically movably connected below upper die seat, first nitrogen spring is connected between the upper die seat and the upper die pressing core, the lower die includes lower base plate, lower die seat being connected on lower base plate and lower die pressing core being connected on lower die seat.The positioning deviation problem caused by the piece of material angle in the automatic production can be effectively solved by the way of first pressing material and then forming, and the product forming quality is significantly improved.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal processing technology, and in particular to an automated angle correction mechanism. Background Technology

[0002] In the automotive manufacturing industry, stamped parts, as an important component of automotive body panels and related parts, directly affect the performance and cost of the entire vehicle due to their quality and production efficiency. In recent years, with increasingly fierce competition in the automotive market, major automakers have continuously raised their requirements for stamped parts, with parts gradually becoming more complex and stronger. This places higher technical demands on mold manufacturers. In automated stamping production, the angle requirements of the sheet metal often differ across different processes, sometimes requiring angle-shifting operations to meet the design requirements of the finished product. However, in automated production, the sheet metal is prone to positioning misalignment during angle shifting, leading to inaccurate positioning and affecting the forming quality of the product. This positioning deviation not only significantly increases the scrap rate but also raises production costs and reduces production efficiency. Traditional stamping die structures show significant shortcomings in handling multi-angle positioning requirements, especially in automated production environments, making it difficult to achieve a balance between precise positioning and efficient production. Therefore, this invention proposes an automated angle-shifting and correction mechanism. Utility Model Content

[0003] The main objective of this invention is to provide an automated angle correction mechanism to solve the problems mentioned in the background art.

[0004] This utility model achieves the above-mentioned objective through the following technical solution: an automated angle correction mechanism, comprising an upper mold, a lower mold, a guide mechanism connected between the upper mold and the lower mold, and a positioning mechanism disposed on the lower mold. The upper mold includes an upper support plate, an upper mold base fixed to the lower end face of the upper support plate, and an upper mold pressing core vertically and movably connected to the lower part of the upper mold base. A first nitrogen spring is connected between the upper mold base and the upper mold pressing core. The lower mold includes a lower pad plate, a lower mold base connected to the lower pad plate, and a lower mold pressing core connected to the lower mold base.

[0005] Preferably, the guiding mechanism includes an outer guide post disposed on the upper mold base, an outer guide sleeve disposed on the lower mold base that cooperates with the outer guide post, a guide leg vertically disposed on the side of the upper mold base, a guide groove disposed on the lower mold base that matches the guide leg, an outer limiting block disposed on the upper end face of the lower mold base, a spring counter block disposed on the lower end face of the upper mold base, and a second nitrogen spring disposed inside the lower mold base directly opposite the spring counter block.

[0006] Preferably, the positioning mechanism includes a first inner positioning post for coarse positioning and a second inner positioning post for fine positioning.

[0007] Preferably, the top of the first inner positioning post is tapered, and one side of the top of the second inner positioning post is provided with a guide slope.

[0008] Preferably, the lower end face of the upper mold base is provided with a receiving groove, the upper mold pressing core is located in the receiving groove, the inner wall of the receiving groove is provided with a wear-resistant plate, the side of the upper mold pressing core is provided with a wear-resistant groove, the wear-resistant plate is slidably connected in the wear-resistant groove, a stop block is connected to the top of the receiving groove, and a stroke limiting plate extending downward to the upper mold pressing core is provided on one side of the bottom end of the upper mold base.

[0009] Preferably, a floating block is provided at the corner of the lower mold base, and a buffer spring provided in the lower mold base is connected to the bottom of the floating block.

[0010] The beneficial effects of this utility model are as follows: the positioning mechanism is used to position the sheet material, and the upper die pressing core is connected to the upper die base through a nitrogen spring. During the pressing process, the upper die pressing core first contacts the sheet material to press it. After the upper die base moves to the end of its stroke, the reaction force of the nitrogen spring pushes the upper die pressing core to press the sheet material into shape, thereby realizing pressing before forming, avoiding the positioning offset problem caused by the rotation angle of the sheet material, and improving the product forming quality. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the automated angle correction mechanism for an example.

[0012] Figure 2 This is a schematic diagram of the upper mold section.

[0013] Figure 3 This is a schematic diagram of the positioning mechanism.

[0014] The numbers in the image represent: 1. Upper mold; 2. Lower mold; 3. Guide mechanism; 4. Positioning mechanism; 5. Upper support plate; 6. Upper mold base; 7. Upper mold pressing core; 8. First nitrogen spring; 9. Lower pad plate; 10. Lower mold base; 11. Lower mold pressing core; 12. Outer guide post; 13. Outer guide sleeve; 14. Guide leg; 15. Guide groove; 16. Outer limit block; 17. Spring counter block; 18. Second nitrogen spring; 19. First inner positioning post; 20. Second inner positioning post; 21. Inclined surface; 22. Receiving groove; 23. Wear-resistant plate; 24. Wear-resistant groove; 25. Fixed block; 26. Stroke limit plate; 27. Floating block. Detailed Implementation

[0015] The present invention will be further described in detail below with reference to specific embodiments.

[0016] Example: like Figure 1-3As shown, this utility model discloses an automated angle correction mechanism, including an upper mold 1, a lower mold 2, a guide mechanism 3 connected between the upper mold 1 and the lower mold 2, and a positioning mechanism 4 disposed on the lower mold 2. The upper mold 1 includes an upper support plate 5, an upper mold base 6 fixed to the lower end face of the upper support plate 5, and an upper mold pressing core 7 vertically and movably connected to the lower part of the upper mold base 6. A first nitrogen spring 8 is connected between the upper mold base 6 and the upper mold pressing core 7. The lower mold 2 includes a lower pad 9, a lower mold base 10 connected to the lower pad 9, and a lower mold pressing core 11 connected to the lower mold base 10. The blank to be stamped is placed on the lower mold. On the pressing core 11, the material sheet is positioned by the positioning mechanism 4. The upper die 1 starts to move downward under the drive of the press. In the first stroke, the upper die seat 6 drives the upper die pressing core 7 downward. The upper die pressing core 7 presses the material sheet to position it. The first stroke ends. The press continues to drive the upper die 1 downward. The upper die seat 6 and the lower die seat 10 close together. The first nitrogen spring 8 is compressed. The reaction force provided by the first nitrogen spring 8 pushes the upper die pressing core 7 downward to stamp the material sheet. This realizes the pressing of the material sheet before forming, and solves the positioning offset problem caused by the rotation angle.

[0017] The guiding mechanism 3 includes an outer guide post 12 disposed on the upper mold base 6 and an outer guide sleeve 13 disposed on the lower mold base 10 in cooperation with the outer guide post 12. The upper mold base 6 has a guide leg 14 vertically disposed on its side. The lower mold base 10 has a guide groove 15 that matches the guide leg 14. The upper end face of the lower mold base 10 has an outer limiting block 16. The lower end face of the upper mold base 6 has a spring counter block 17. The lower mold base 10 has a second nitrogen spring 18 directly opposite the spring counter block 17.

[0018] The positioning mechanism 4 includes a first inner positioning post 19 for coarse positioning and a second inner positioning post 20 for fine positioning.

[0019] The top of the first inner positioning post 19 is tapered, and the top of the second inner positioning post 20 is provided with a guide slope 21 on one side. When installing the material piece, the material piece first enters the tapered guide area of ​​the first inner positioning post 19. Under the action of the tapered structure, it is quickly adjusted to be close to the target position. The second inner positioning post 20 further accurately positions the material piece. Its slope 21 makes the material piece gradually approach the bottom during the sliding process, and finally achieves the effect of accurate positioning, thereby improving the positioning accuracy and reducing the difficulty of operation.

[0020] The lower end face of the upper mold base 6 is provided with a receiving groove 22, the upper mold pressing core 7 is located in the receiving groove 22, the inner wall of the receiving groove 22 is provided with a wear-resistant plate 23 vertically, the side of the upper mold pressing core 7 is provided with a wear-resistant groove 24 vertically, the wear-resistant plate 23 is slidably connected in the wear-resistant groove 24, the top of the receiving groove 22 is connected with a stop block 25, and a stroke limiting plate 26 extending downward to the upper mold pressing core 7 is provided on one side of the bottom end of the upper mold base 6.

[0021] A floating block 27 is provided at the corner of the lower mold base 10, and a buffer spring is connected to the bottom of the floating block 27 inside the lower mold base 10.

[0022] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. An automated angle correction mechanism, characterized in that: The device includes an upper mold, a lower mold, a guide mechanism connecting the upper mold and the lower mold, and a positioning mechanism on the lower mold. The upper mold includes an upper support plate, an upper mold base fixed to the lower end face of the upper support plate, and an upper mold pressing core vertically and movably connected to the lower part of the upper mold base. A first nitrogen spring is connected between the upper mold base and the upper mold pressing core. The lower mold includes a lower pad plate, a lower mold base connected to the lower pad plate, and a lower mold pressing core connected to the lower mold base.

2. The automated angle correction mechanism according to claim 1, characterized in that: The guiding mechanism includes an outer guide post on the upper mold base and an outer guide sleeve on the lower mold base that cooperates with the outer guide post. The upper mold base has a guide leg vertically arranged on its side. The lower mold base has a guide groove that matches the guide leg. The upper end face of the lower mold base has an outer limiting block. The lower end face of the upper mold base has a spring counter block. The lower mold base has a second nitrogen spring directly opposite the spring counter block.

3. The automated angle correction mechanism according to claim 1, characterized in that: The positioning mechanism includes a first inner positioning post for coarse positioning and a second inner positioning post for fine positioning.

4. The automated angle correction mechanism according to claim 3, characterized in that: The top of the first inner positioning post is tapered, and a guide slope is provided on one side of the top of the second inner positioning post.

5. The automated angle correction mechanism according to claim 2, characterized in that: The lower end face of the upper mold base is provided with a receiving groove, the upper mold pressing core is located in the receiving groove, the inner wall of the receiving groove is provided with a wear-resistant plate vertically, the side of the upper mold pressing core is provided with a wear-resistant groove vertically, the wear-resistant plate is slidably connected in the wear-resistant groove, a stop block is connected to the top of the receiving groove, and a stroke limiting plate extending downward to the upper mold pressing core is provided on one side of the bottom end of the upper mold base.

6. The automated angle correction mechanism according to claim 1, characterized in that: A floating block is provided at the corner of the lower mold base, and a buffer spring is connected to the bottom of the floating block inside the lower mold base.

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