Automatic line stamping progressive die for U-shaped support with concave-convex tables on two sides

Abstract

The utility model discloses an automatic line stamping progressive die for a U-shaped support with concave-convex tables on two sides, which relates to the technical field of stamping dies and comprises an upper die assembly, a lower die assembly and a lower die assembly, the upper die assembly comprises an upper die plate and an upper die fixing plate, and the upper die fixing plate is mounted on the lower end face of the upper die plate; the upper die assembly comprises a forming male die and a shaping male die, the lower die assembly comprises a lower die plate and a lower die base plate, and the lower die base plate is installed on the lower side of the lower die plate through die feet. The upper die corresponds to the floating shaping upper material pressing insert, so that the male die descends to the position needed by part forming in the die closing process, after the die is opened, the male die floats along with a material belt through a built-in nitrogen cylinder of the lower die, the side face structure of the male die is designed in a transversely-penetrating avoiding mode, it is guaranteed that the feeding direction of the material belt is smooth, and automatic feeding is directly carried out without demolding after a part is formed; the production efficiency is improved, and the precision requirement of a product is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping dies, in particular to an automatic line stamping progressive die for a U-shaped bracket with concave and convex platforms on both sides. Background Art

[0002] With the booming development of the automotive industry, companies have higher and higher requirements for product production efficiency. Reducing the failure rate of equipment and tooling, improving efficiency, and ensuring zero accidents have become the focus of companies. Figure 7 As shown in the figure, the shape of the part makes it impossible to demold the part vertically after stamping, which makes it difficult to remove the material. In order to facilitate material removal, the forming mold generally adopts a single process forming process. After forming, the workers manually extract the parts from the front and back directions, resulting in low production efficiency, high labor and equipment costs, and a great safety hazard when entering the mold to take out the parts; in addition, the error accumulation of manual multiple pick-up and placement of stamped products is large, resulting in poor product quality stability. Therefore, a U-shaped bracket automatic line stamping progressive die with concave and convex platforms on both sides is needed to solve the above problems. Utility Model Content

[0003] The utility model aims to provide a U-shaped bracket automatic line stamping progressive die with concave and convex platforms on both sides, so as to solve the problems existing in the prior art proposed in the above background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] An automatic line stamping progressive die for a U-shaped bracket with concave and convex platforms on both sides, comprising:

[0006] An upper mold assembly, the upper mold assembly comprising an upper mold plate and an upper mold fixing plate, the upper mold fixing plate being mounted on the lower end surface of the upper mold plate;

[0007] A lower mold assembly, the lower mold assembly includes a lower mold plate and a lower mold pad, the lower mold pad is installed on the lower side of the lower mold plate through mold feet, and the lower mold assembly is connected to the upper mold assembly through a guide column assembly;

[0008] An upper punch assembly, the upper punch assembly is installed on the upper die assembly, the upper punch assembly includes an upper support plate of a material unloading station installed on the upper die plate, an upper die pressing material nitrogen cylinder and a second nitrogen cylinder, the output end of the upper die pressing material nitrogen cylinder is connected to a forming die insert, the output end of the second nitrogen cylinder is connected to a shaping upper pressing material insert, and upper die wedge drive blocks are provided on both sides of the second nitrogen cylinder;

[0009] A lower punch assembly is installed on a lower die assembly, and the lower punch assembly includes a material strip guide and a blanking die installed on the lower template. A forming station punch and a side shaping punch that can be lifted and slid are also installed on the lower template. A lower die nitrogen cylinder is installed at the bottom of the forming station punch and the side shaping punch. A lower die wedge starting block is horizontally slidably connected to the lower template, and a side shaping die insert is connected to one side of the lower die wedge starting block. The lower die wedge starting blocks on the left and right sides of the lower template are horizontally staggered.

[0010] Preferably, the upper mold assembly also includes a limit column and an upper support plate safety limit installed on the upper mold plate, a large guide plate is installed on the middle part of the front side of the upper mold plate through a guide plate mounting seat, and a large guide plate guide seat matching the large guide plate is installed on the lower mold plate.

[0011] Preferably, a lower die nitrogen cylinder fixing seat is installed on the lower die pad, and the lower die nitrogen cylinder is installed on the lower die nitrogen cylinder fixing seat.

[0012] Preferably, a forming punch guide frame is installed on the lower template, the forming station punch is slidably arranged in the forming punch guide frame, forming punch limiting pressure plates are provided on both sides of the forming station punch, and the forming die insert is installed under the upper die fixing plate through the forming die positioning piece.

[0013] Preferably, a support block is installed on the upper mold fixing plate, a rear station upper support plate is installed on the support block, and the second nitrogen cylinder is installed on the rear station upper support plate.

[0014] Preferably, a preforming station punch is installed on the lower template at one side of the forming station punch, a punching station die is installed on the lower template at one side of the side shaping punch, and a cutting knife is provided on one side of the punching station die.

[0015] Preferably, an inclined wedge guide block for supporting the side of the upper mold inclined wedge drive block is installed on the lower mold plate.

[0016] Preferably, a slideway is installed on the discharge side of the lower mold plate, and lifting ears are installed at the corners of the upper mold plate and the lower mold pad.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The utility model adopts a floating design for the molding punch and the shaping punch structure of the mold, so that the molding and shaping punches float up simultaneously with the material belt, and the corresponding floating shaping upper pressure insert of the upper mold is used to make the punch drop to the position required for part molding during the mold closing process. After the mold is opened, the punch is floated with the material belt through the built-in nitrogen cylinder of the lower mold. The side structure of the punch is designed with a cross-over avoidance to ensure smooth feeding direction of the material belt. After the parts are formed, they can be directly fed automatically without demoulding. The whole process production is realized in one stamping, which saves personnel and equipment, improves production efficiency, and ensures the precision requirements of the product.

[0019] 2. The utility model adopts a common mold design for the left and right parts of the mold, which reduces the stamping cost and improves production efficiency. The stamping process of the left and right parts is the same, and the left and right parts are staggered by adding a vacant position. The width dimension of the mold is reduced, saving the production cost of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0021] Figure 2 For this utility model Figure 1 Schematic diagram of the BB section structure.

[0022] Figure 3 For this utility model Figure 1 Schematic diagram of the AA section structure.

[0023] Figure 4 It is a schematic diagram of the structure of the lower mold assembly of the utility model.

[0024] Figure 5 It is a schematic diagram of the horizontal misalignment setting of the lower die wedge starting block of the utility model.

[0025] Figure 6 This is a schematic diagram of the DL stamping process of the U-shaped bracket of the utility model.

[0026] Figure 7 This is a schematic diagram of the structure of the U-shaped bracket parts of the utility model.

[0027] In the figure: 1. Upper mold plate; 2. Upper mold fixing plate; 3. Guide column assembly; 4. Limiting column; 5. Upper support plate of unloading station; 6. Safety limit of upper support plate; 7. Large guide plate; 8. Guide plate mounting seat; 9. Slide; 10. Lifting ear; 11. Lower mold plate; 12. Die foot; 13. Lower mold pad; 14. Large guide plate guide seat; 15. Forming station punch; 16. Lower mold nitrogen cylinder fixing seat; 17. Lower mold nitrogen cylinder; 18. Forming punch guide frame; 19. Forming punch limiting pressure plate; 2 0. Forming die positioning piece; 21. Forming die insert; 22. Upper die nitrogen cylinder; 24. Upper support plate of rear station; 25. Shaping upper pressing insert; 26. Second nitrogen cylinder; 27. Support block; 28. Upper die wedge drive block; 29. ​​Wedge guide block; 30. Lower die wedge start block; 31. Side shaping die insert; 32. Side shaping punch; 33. Material strip guide; 34. Unloading die; 35. Pre-forming station punch; 36. Punching station die; 37. Cutting knife. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0029] See also Figure 1-7 , the utility model provides the following technical solutions:

[0030] A U-shaped bracket automatic line stamping progressive die with concave and convex platforms on both sides, comprising: an upper die assembly, the upper die assembly comprising an upper die plate 1 and an upper die fixing plate 2, the upper die fixing plate 2 is installed on the lower end surface of the upper die plate 1; the upper die assembly also includes a limit column 4 and an upper support plate safety limit 6 installed on the upper die plate 1, a large guide plate 7 is installed on the middle part of the front side of the upper die plate 1 through a guide plate mounting seat 8, a large guide plate guide seat 14 matched with the large guide plate 7 is installed on the lower die plate 11, and the large guide plate 7 and the large guide plate guide seat 14 are used to make the upper and lower mold clamping of the mold more stable.

[0031] The lower mold assembly comprises a lower mold plate 11 and a lower mold pad 13, wherein the lower mold pad 13 is installed on the lower side of the lower mold plate 11 through a mold foot 12, and the lower mold assembly is connected to the upper mold assembly through a guide column assembly 3, and the guide column assembly 3 plays a positioning role between the lower mold assembly and the upper mold assembly; a forming punch guide frame 18 is installed on the lower mold plate 11, and the forming station punch 15 is slidably arranged in the forming punch guide frame 18, and forming punch limiting pressure plates 19 are provided on both sides of the forming station punch 15, and the forming punch limiting pressure plates 19 are used for limiting support on the bottom of both ends of the workpiece, and the forming die insert 21 is installed below the upper mold fixing plate 2 through the forming die positioning piece 20.

[0032] An upper punch assembly is installed on an upper die assembly, and the upper punch assembly includes an upper support plate 5 of a material unloading station installed on the upper die plate 1, an upper die pressing nitrogen cylinder 22 and a second nitrogen cylinder 26. A support block 27 is installed on the upper die fixed plate 2, and a rear-station upper support plate 24 is installed on the support block 27. The second nitrogen cylinder 26 is installed on the rear-station upper support plate 24; the output end of the upper die pressing nitrogen cylinder 22 is connected to a forming die insert 21, the output end of the second nitrogen cylinder 26 is connected to a shaping upper pressing insert 25, and upper die wedge drive blocks 28 are arranged on both sides of the second nitrogen cylinder 26; an oblique wedge guide block 29 for supporting the upper die wedge drive block 28 on the side is installed on the lower die plate 11, and the oblique wedge guide block 29 can guide and support the upper die wedge drive block 28 laterally to ensure the stability of side stamping.

[0033] A lower punch assembly is installed on a lower die assembly, and the lower punch assembly includes a material strip guide 33 and a blanking die 34 installed on a lower die plate 11. A forming station punch 15 and a side shaping punch 32 capable of lifting and sliding are also installed on the lower die plate 11. A lower die nitrogen cylinder 17 is installed at the bottom of the forming station punch 15 and the side shaping punch 32. A lower die nitrogen cylinder fixing seat 16 is installed on the lower die pad 13, and the lower die nitrogen cylinder 17 is installed on the lower die nitrogen cylinder fixing seat 16. A lower die wedge starting block 30 is horizontally slidably connected to the lower die plate 11, and a side shaping die insert 31 is connected to one side of the lower die wedge starting block 30. The lower die wedge starting blocks 30 on the left and right sides of the lower die plate 11 are horizontally staggered, and the width dimension of the die can be reduced by horizontally staggering.

[0034] A preforming station punch 35 is installed on the lower template 11 at one side of the forming station punch 15, and a punching station die 36 is installed on the lower template 11 at one side of the side shaping punch 32. A cutting knife 37 is provided on one side of the punching station die 36, which can realize the whole process of forming and shearing the material; a slide 9 is installed on the discharge side of the lower template 11, and the stamped product can slide from the slide 9 to the transfer table device, and ears 10 are installed at the corners of the upper template 1 and the lower die pad 13, and the ears 10 are convenient for balanced lifting of the mold.

[0035] The working process of the utility model is as follows:

[0036] The steel coil enters the mold after passing through the automatic feeder and the leveler. First, the steel coil is sheared to form the required boundaries, and then combined with the subsequent processes to complete the pre-forming, forming, side shaping, and side punching processes. Finally, the finished product is cut at the end of the mold under the action of the cutting knife 37, and the finished product slides along the slide 9 to the transfer table device.

[0037] During the mold forming process, in order to ensure that the convex and concave platforms on both sides of the process parts after forming and shaping do not get stuck and to achieve smooth feeding, the forming station punch 15 and the side shaping punch 32 are designed to float, and are driven by the nitrogen cylinders and the forming punch limit plate 19 to move up and down with the material belt; during production, when the mold is in the open state, the forming station punch 15 and the side shaping punch 32 are pushed out and floated by the nitrogen cylinder 17 of the lower mold, and the material belt is fed normally for one step. After the feeding is completed, the forming die insert 21 and the side shaping die insert 31 are moved up and down with the upper support The plates act on the forming station punch 15 and the side shaping punch 32 respectively. As the machine tool descends, after the forming station punch 15 and the side shaping punch 32 reach the bottom, the forming die insert 21 and the side shaping die insert 31 act on the parts at the same time to complete the stamping. After the mold is opened, the forming station punch 15 and the side shaping punch 32 move synchronously to the designed position under the action of the lower mold nitrogen cylinder 17, and the automatic feeder works to feed again. This cycle repeats. The entire stamping process does not require manual auxiliary operation, which ensures product accuracy, improves production efficiency, and reduces production costs.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A U-shaped bracket with concave and convex platforms on both sides of the automatic line stamping progressive die, characterized in that: include: An upper mold assembly, the upper mold assembly comprising an upper mold plate (1) and an upper mold fixing plate (2), the upper mold fixing plate (2) being mounted on the lower end surface of the upper mold plate (1); A lower mold assembly, the lower mold assembly comprising a lower mold plate (11) and a lower mold pad (13), the lower mold pad (13) being mounted on the lower side of the lower mold plate (11) via a mold foot (12), and the lower mold assembly is connected to the upper mold assembly via a guide column assembly (3); An upper punch assembly, the upper punch assembly is mounted on the upper die assembly, the upper punch assembly comprises an upper support plate (5) mounted on the upper die plate (1), an upper die pressing nitrogen cylinder (22) and a second nitrogen cylinder (26), the output end of the upper die pressing nitrogen cylinder (22) is connected to a forming die insert (21), the output end of the second nitrogen cylinder (26) is connected to a shaping upper pressing insert (25), and upper die wedge drive blocks (28) are provided on both sides of the second nitrogen cylinder (26); A lower punch assembly is installed on a lower die assembly, and the lower punch assembly includes a material strip guide (33) and a material blanking die (34) installed on a lower template (11). A molding station punch (15) and a side shaping punch (32) capable of lifting and sliding are also installed on the lower template (11). A lower die nitrogen cylinder (17) is installed at the bottom of the molding station punch (15) and the side shaping punch (32). A lower die oblique wedge start block (30) is horizontally slidably connected to the lower template (11). One side of the lower die oblique wedge start block (30) is connected to a side shaping die insert (31). The lower die oblique wedge start blocks (30) are horizontally staggered on the left and right sides of the lower template (11).

2. The U-shaped bracket with concave and convex platforms on both sides of the automatic line stamping progressive die according to claim 1, characterized in that: The upper mold assembly also includes a limit column (4) and an upper support plate safety limit (6) installed on the upper mold plate (1); a large guide plate (7) is installed in the middle of the front side of the upper mold plate (1) through a guide plate mounting seat (8); and a large guide plate guide seat (14) that matches the large guide plate (7) is installed on the lower mold plate (11).

3. The U-shaped bracket with concave and convex platforms on both sides of the automatic line stamping progressive die according to claim 2, characterized in that: A lower die nitrogen cylinder fixing seat (16) is installed on the lower die pad (13), and the lower die nitrogen cylinder (17) is installed on the lower die nitrogen cylinder fixing seat (16).

4. The U-shaped bracket with concave and convex platforms on both sides of the automatic line stamping progressive die according to claim 1, characterized in that: A forming punch guide frame (18) is installed on the lower mold plate (11), the forming station punch (15) is slidably arranged in the forming punch guide frame (18), forming punch limit pressure plates (19) are arranged on both sides of the forming station punch (15), and the forming die insert (21) is installed below the upper mold fixing plate (2) through a forming die positioning piece (20).

5. The U-shaped bracket with concave and convex platforms on both sides of the automatic line stamping progressive die according to claim 2, characterized in that: A support block (27) is installed on the upper mold fixing plate (2), a rear station upper support plate (24) is installed on the support block (27), and the second nitrogen cylinder (26) is installed on the rear station upper support plate (24).

6. The U-shaped bracket with concave and convex platforms on both sides of the automatic line stamping progressive die according to claim 2, characterized in that: A preforming station punch (35) is installed on the lower template (11) at one side of the forming station punch (15), a punching station die (36) is installed on the lower template (11) at one side of the side shaping punch (32), and a cutting knife (37) is provided on one side of the punching station die (36).

7. The U-shaped bracket with concave and convex platforms on both sides of the automatic line stamping progressive die according to claim 1, characterized in that: The lower mold plate (11) is provided with an inclined wedge guide block (29) for supporting the side of the upper mold inclined wedge drive block (28).

8. The U-shaped bracket with concave and convex platforms on both sides of the automatic line stamping progressive die according to claim 1, characterized in that: A slideway (9) is installed on the discharge side of the lower mold plate (11), and lifting ears (10) are installed at the corners of the upper mold plate (1) and the lower mold pad (13).

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