Rotary forming die mechanism

Abstract

The utility model relates to the technical field of forming dies, in particular to a rotary forming die mechanism. A rotary forming die mechanism comprises an upper die base and a lower die base, the lower die base is arranged below the upper die base, upper guide column upper ends are arranged on the left side and the right side below the upper die base respectively, lower guide columns are arranged on the left side and the right side above the lower die base respectively, and a rotary forming structure is arranged between the guide columns on the left side and the right side. The rotary forming structure comprises an upper die core, a lower die core, a cylindrical insert, a fixing base, a rotating shaft fixing base and a rotating shaft, compared with the prior art, the stamping scheme of the long and thin n-shaped beam is greatly simplified, three to four pairs of long and thin n-shaped beam forming dies are simplified into one set, multiple pressing machines are not needed for stamping production, the cost is reduced, and the production efficiency is improved. According to the utility model, the slender n-shaped beam can be produced, so that the investment of a mold tool, the investment of a pressing machine and the cost can be reduced, and the efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of forming molds, and specifically relates to a rotary forming mold mechanism. Background Art

[0002] At present, the production of slender J-shaped beam parts is carried out by using a multi-step forming method, including processes such as forming, flanging, flanging, and side shaping. The specific process content and sequence of the processes will vary slightly according to different parts, but the total number of forming molds remains between three and four. This results in an increase in the mold cost invested during project development, and the operation is also relatively troublesome, with high stamping costs during mass production. Summary of the Invention

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a rotary forming mold mechanism. A cylindrical insert and a nitrogen spring are installed on a fixed seat through bolts and a rotating shaft to form a rotary forming mechanism. Power is provided by a press. During the closing process of the mold, the upper die core presses the material downwards to drive the movement of the rotating mechanism, reducing the operation and input costs of the slender J-shaped beam.

[0004] To achieve the above object, a rotary forming mold mechanism is designed, including an upper die seat and a lower die seat. The lower die seat is provided below the upper die seat. The upper ends of upper guide columns are respectively provided on the left and right sides below the upper die seat, and lower guide columns are respectively provided on the left and right sides above the lower die seat. A rotary forming structure is provided between the guide columns on both sides. The rotary forming structure includes an upper die core, a lower die core, a cylindrical insert, a fixed base, a rotating shaft fixed seat, and a rotating shaft. Fixed bases are respectively provided on the left and right sides above the lower die seat. The cylindrical insert is embedded in the fixed base. The rotating shaft is connected inside the cylindrical insert through a pin. Rotating shaft fixed seats are respectively provided at both ends of the fixed base. Both ends of the rotating shaft are rotatably connected to the rotating shaft fixed seats. A first fixing bolt is provided on the rotating shaft fixed seat. The middle sections of both ends of the cylindrical insert are respectively connected to a second fixing bolt. One end of the nitrogen spring is connected to the second fixing bolt, and the other end of the nitrogen spring passes through the rotating shaft fixed seat and is connected at the first fixing bolt. The lower end of the upper die seat is connected to the upper die core, and the lower die core passes through the lower die seat. Protrusion structures are respectively provided on the front and back sides of the cylindrical insert, and the lower die seat is fixed between the two protrusion structures.

[0005] A fixed pressing plate is provided above the fixed base.

[0006] Four support columns are provided between the lower die seat and the upper die seat.

[0007] A groove on the upper die seat that mates with the upper end of the upper die core is provided on the lower surface of the upper die seat.

[0008] A guiding hole for the lower die core to pass through is provided on the lower die seat.

[0009] On the upper surface of the described fixed base, rotating shaft fixing seat, and fixed pressing plate, a workpiece to be processed is horizontally arranged.

[0010] The described rotating shaft fixing seat is connected to the fixed base through fixed studs.

[0011] The upper die base is provided with a plurality of upper die core positioning holes and upper guide post disassembly holes.

[0012] The structures of the upper die core and the lower die core are in a T shape, and the lower end of the upper die core and the upper end of the lower die core have the same chamfer structure.

[0013] Compared with the prior art, the present utility model greatly simplifies the stamping scheme for slender J-shaped beams, simplifies a set of forming dies for slender J-shaped beams from three to four sets, and no longer requires multiple presses for stamping production to achieve the forming purpose. The present utility model can reduce the investment in die tooling, reduce the investment in presses, reduce costs, and improve efficiency in the production of slender J-shaped beams. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic structural diagram of the present utility model.

[0015] Figure 2 It is a top view of the present utility model.

[0016] Figure 3 It is a bottom view of the present utility model.

[0017] Figure 4 It is a schematic diagram of the upper die base.

[0018] Figure 5 It is a side view of the present utility model.

[0019] Figure 6 It is a perspective view of the present utility model.

[0020] Figure 7 It is a perspective view of the rotary forming structure.

[0021] Figure 8 It is a schematic diagram of the cylindrical insert.

[0022] See Figures 1 to 8 , 1 is the cylindrical insert, 2 is the nitrogen spring, 3.1 is the first fixing bolt, 3.2 is the second fixing bolt, 4 is the fixed base, 5 is the rotating shaft fixing seat, 6 is the rotating shaft, 7 is the upper die core, 8 is the lower die core, 9 is the lower guide post, 10 is the upper guide post, 11 is the workpiece to be processed, 12 is the support column, 13 is the fixed pressing plate, 14 is the fixed stud, 15 is the guide hole, 16 is the upper die base, 17 is the lower die base, 18 is the upper die base groove, 19 is the upper die core positioning hole, 20 is the upper guide post disassembly hole, 21 is the chamfer structure, 22 is the protrusion structure, 23 is the pin. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following further describes the present utility model with reference to the accompanying drawings.

[0024] As Figure 1 shown, a lower die base 17 is provided below an upper die base 16. The upper ends of upper guide posts 10 are respectively provided on the left and right sides below the upper die base 16, and lower guide posts 9 are respectively provided on the left and right sides above the lower die base 17. The upper guide posts 10 and the lower guide posts 9 provide positioning for the downward pressing of the press. A rotary forming structure is provided between the guide posts on the left and right sides. The rotary forming structure is as Figure 7 shown, and includes an upper die core 7, a lower die core 8, a cylindrical insert 1, a fixed base 4, a rotary shaft fixing seat 5, and a rotary shaft 6. Fixed bases 4 are respectively provided on the left and right sides above the lower die base 17. A cylindrical insert 1 is embedded in the fixed base 4. A rotary shaft 6 is connected inside the cylindrical insert 1 through a pin 23. Rotary shaft fixing seats 5 are respectively provided at both ends of the fixed base 4. Both ends of the rotary shaft 6 are rotatably connected to the rotary shaft fixing seats 5. A first fixing bolt 3.1 is provided on the rotary shaft fixing seat 5. The middle sections of both ends of the cylindrical insert 1 are respectively connected to a second fixing bolt 3.2. One end of a nitrogen spring 2 is connected to the second fixing bolt 3.2. The other end of the nitrogen spring 2 passes through the rotary shaft fixing seat 5 and is connected at the first fixing bolt 3.1. The nitrogen spring 2 limits the rotation range of the cylindrical insert 1. The lower end of the upper die base 16 is connected to the upper die core 7, and the lower die core 8 is provided through the lower die base 17. As Figure 8 shown, convex structures 22 are respectively provided on the front and rear sides of the cylindrical insert 1. The lower die base 17 is fixed between the two convex structures 22. When the lower die base 17 moves downward, it drives the cylindrical inserts 1 on the left and right sides to rotate.

[0025] A fixed pressing plate 13 is provided above the fixed base 4.

[0026] Four support columns 12 are provided between the lower die base 17 and the upper die base 16.

[0027] As Figure 3 shown, an upper die base groove 18 that cooperates with the upper end of the upper die core 7 is provided on the lower surface of the upper die base 16.

[0028] As Figure 4 shown, a guide hole 15 through which the lower die core 8 passes is provided on the lower die base 17. The guide hole 15 enables the lower die core 8 to have a certain downward displacement range and guides the downward movement of the upper die core 7 at the same time.

[0029] A workpiece 11 to be processed is horizontally provided on the upper surfaces of the fixed base 4, the rotary shaft fixing seat 5, and the fixed pressing plate 13.

[0030] The rotary shaft fixing seat 5 is connected to the fixed base 4 through a fixing stud 14.

[0031] The upper die base 16 is provided with a plurality of upper die core positioning holes 19 and upper guide post disassembly holes 20. The upper die core positioning holes 19 function to install and position the upper die core 7, and the upper guide post disassembly holes 20 function to facilitate the disassembly of the upper guide post 10.

[0032] As Figure 7 shown, the structures of the upper die core 7 and the lower die core 8 are in a T shape, and the lower end of the upper die core 7 and the upper end of the lower die core 8 have the same chamfer structure 21.

[0033] In the specific implementation process, the workpiece 11 to be processed is placed on the upper surfaces of the fixed base 4, the rotating shaft fixing seat 5, and the fixed pressing plate 13. The two sides of the lower die core 8 are clamped by the protruding structures 22 of the cylindrical inserts 1, so that the initial height of the chamfer structure 21 at the top of the lower die core 8 can abut against the lower surface of the workpiece 11 below. The upper die core 7 is installed below the upper die base 16 through the upper die core positioning holes 19. The press is started, and the press provides power. The upper die base descends to drive the upper die core 7 and the upper guide post 10 to press the material downward. The chamfer structure 21 at the lower end of the upper die 7 contacts the workpiece 11 and bends it from the middle. The lower die core 8 on the lower surface of the workpiece 11 descends under pressure. The friction between the side surface of the lower die core 8 and the protruding structure 22 drives the two cylindrical inserts 1 to rotate inward. The nitrogen spring 2 is tightened. The upper die core 7 continues to press downward to drive the workpiece 11 and the lower die core 8 to descend. The middle part of the workpiece 11 fits the chamfer structure 21 below the upper die core 7, and both ends are lifted by the rotating shaft fixing seat 5. The workpiece 11 gradually fits the gap between the two rotating shaft fixing seats 5 until the workpiece 11 is processed into a channel beam. The processing is completed. The press, the upper die core 7, and the upper die base 16 ascend. The processed channel beam part is taken out. The lower die core 8 is pulled up and restored. While the nitrogen spring 2 slowly rebounds, the cylindrical inserts 1 rotate outward. A new workpiece 11 is placed on the upper surfaces of the fixed base 4, the rotating shaft fixing seat 5, and the fixed pressing plate 13 to start the reprocessing. In this way, after one downward pressing and bending, the workpiece 11 is processed into a channel beam workpiece, achieving the working purpose of forming, simplifying the multi-step forming method of the existing channel beam parts, reducing the number of punching times of the parts, reducing the production cost, and improving the production efficiency.

Claims

1. A rotational molding die mechanism, comprising an upper die base and a lower die base, characterized in that: A lower die base (17) is provided below the upper die base (16) described above. The upper ends of upper guide posts (10) are respectively provided on the left and right sides below the upper die base (16). Lower guide posts (9) are respectively provided on the left and right sides above the lower die base (17). A rotary forming structure is provided between the guide posts on the left and right sides. The rotary forming structure includes an upper die core (7), a lower die core (8), a cylindrical insert (1), a fixed base (4), a rotary shaft fixing base (5), and a rotary shaft (6). Fixed bases (4) are respectively provided on the left and right sides above the lower die base (17). A cylindrical insert (1) is embedded in the fixed base (4). A rotary shaft (6) is connected inside the cylindrical insert (1) through a pin (23). Rotary shaft fixing bases (5) are respectively provided at both ends of the fixed base (4). Both ends of the rotary shaft (6) are rotatably connected to the rotary shaft fixing bases (5). A first fixing bolt (3.1) is provided on the rotary shaft fixing base (5). The middle sections of both ends of the cylindrical insert (1) are respectively connected to a second fixing bolt (3.2). One end of a nitrogen spring (2) is connected to the second fixing bolt (3.2). The other end of the nitrogen spring (2) passes through the rotary shaft fixing base (5) and is connected at the first fixing bolt (3.1). The lower end of the upper die base (16) is connected to the upper die core (7). The lower die core (8) passes through the lower die base (17). Protrusion structures (22) are respectively provided on the front and back sides of the cylindrical insert (1). The lower die base (17) is fixed between the two protrusion structures (22).

2. The rotational molding die mechanism according to claim 1, characterized in that: A fixed pressing plate (13) is provided above the fixed base (4) described above.

3. The rotational molding die mechanism according to claim 1, wherein: Four support columns (12) are provided between the lower die base (17) and the upper die base (16).

4. A rotational molding die mechanism according to claim 1, characterized in that: A upper die base groove (18) that cooperates with the upper end of the upper die core (7) is provided on the lower surface of the upper die base (16).

5. The rotational molding die mechanism according to claim 1, wherein: A guide hole (15) for the lower die core (8) to pass through is provided on the lower die base (17).

6. The rotational molding die mechanism according to claim 1, characterized in that: A workpiece to be processed (11) is horizontally provided on the upper surfaces of the fixed base (4), the rotary shaft fixing base (5), and the fixed pressing plate (13).

7. The rotational molding die mechanism according to claim 1, wherein: The upper die base (16) is provided with a plurality of upper die core positioning holes (19) and upper guide post disassembly holes (20).

8. A rotational molding die mechanism according to claim 1, characterized in that: The structures of the upper die core (7) and the lower die core (8) are in a T shape, and the lower end of the upper die core (7) and the upper end of the lower die core (8) have the same chamfer structure (21).

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