Reverse flanging wedge mechanism

Abstract

The utility model discloses a reverse flanging wedge mechanism which comprises a stamping seat, a stamping flanging table is arranged on the upper portion of the center of the inner side of the stamping seat, an upper die is arranged above the stamping flanging table, two symmetrical double-flanging mechanisms are connected to the two sides of the interior of the stamping seat in a driving mode, the inner sides of the double-flanging mechanisms comprise first pressing rods, and second pressing rods are arranged on the inner sides of the first pressing rods. A second pressing rod is arranged on one side of the first pressing rod, the bottom face of the first pressing rod and the bottom face of the second pressing rod are obliquely attached to and slidably connected with a first pulley and a second pulley, and the second pulley is attached to the top face of the first pulley in a sliding mode and elastically connected with the first pulley in a limiting mode. A first overturning and punching base and a second overturning and punching base are vertically attached to the faces, away from the first pressing rod and the second pressing rod, of the first tackle and the second tackle in a sliding mode, the first overturning and punching base and the second overturning and punching base are connected in an attached and sliding mode, and the connecting position of the first overturning and punching base and the connecting position of the second overturning and punching base are elastically connected in a limiting mode. A first overturning and punching table and a second overturning and punching table are arranged at the attaching positions of the top ends of the first overturning and punching base and the second overturning and punching base correspondingly.

Description

Technical Field

[0001] The utility model relates to the technical field of reverse flanging bevel wedges, in particular to a reverse flanging bevel wedge mechanism. Background Art

[0002] The inclined wedge mechanism refers to the horizontal sliding action of the inclined follower driven by the contact between the punch seat and the punch table during the vertical stamping process. It is called the inclined wedge mechanism. The inclined wedge mechanism is one of the stamping mechanisms commonly used in flanging stamping. Reverse flanging is a commonly used process in the manufacturing industry, especially in the field of metal sheet processing and mold design. It involves folding a part of the material along a certain curve or straight line to form a straight wall or flange opposite to the original plane.

[0003] In automotive mold design, reverse flanging is a crucial component, effectively improving production efficiency and product quality. For example, a reverse flanging structure can simplify multiple process steps, reduce the number of molds, and facilitate material removal, effectively improving production efficiency while saving mold costs.

[0004] The use of traditional reverse flanging bevel wedge mechanism can usually only flanging a single structure. If complex and diverse flanging processing is required, it is necessary to use multiple types of machinery and repeat the operation, which is extremely cumbersome and has low work efficiency. Therefore, it is urgent to design a reverse flanging bevel wedge mechanism to solve the above problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a reverse flanging bevel wedge mechanism, which is equipped with two sets of bevel wedge mechanisms that can work synchronously, and simultaneously perform double flanging operations on the flanging stamping workpiece, thereby increasing the stamping diversity of the stamping parts, realizing two structural changes in one stamping, and improving the diversity of the stamping parts after stamping and the work efficiency in the actual working process.

[0006] The camming mechanism of the present invention is a kind of reverse flanging wedge mechanism, comprises a punching seat, a punching flanging platform is provided at the upper center of the inner center of the punching seat, and an upper mold is provided above the punching flanging platform, and two sets of double-turn mechanisms are driven and connected symmetrically on both sides of the punching seat, and the double-turn mechanism inner side comprises a first pressure rod, and one side of the first pressure rod is provided with a second pressure rod, and the bottom surface of the first pressure rod and the second pressure rod is obliquely fitted and slidably connected to the first pulley top surface and is elastically connected to the first pulley limit. The first pulley and the second pulley are vertically fitted and slidably connected to the first pulley top surface away from the first pressure rod and the second pressure rod. There is a flipping seat and a second flipping seat between the first flipping seat and the second flipping seat, and the connection position of the first flipping seat and the second flipping seat is elastically connected, and the top fitting positions of the first flipping seat and the second flipping seat are respectively provided with a flipping platform and a second flipping platform, and the one side of the first flipping platform close to the second flipping platform is hinged with a curved punch rod.

[0007] Preferably, a die seat is provided above the stamping seat, and the upper die is fixed at the center of the bottom surface of the die seat. The arrangement of the die seat can provide sufficient weight for the upper die to press and fix the stamping part.

[0008] Preferably, symmetrical hydraulic equipment is fixed on both sides of the die seat, and the output ends of the hydraulic equipment are connected to both sides of the top surface of the stamping seat. The hydraulic equipment on both sides of the die seat can drive the die seat and the upper die to rise and fall, which is convenient for the operation of taking and placing the workpiece. At the same time, the hydraulic equipment can be used to enhance the holding strength of the upper die on the workpiece, thereby ensuring the stability of the workpiece itself during the stamping process.

[0009] Preferably, the upper part of the double-flip mechanism is located on both sides of the top surfaces of the first pressure rod and the second pressure rod, and symmetrical first stamping drive cylinders and second stamping drive cylinders are vertically fixed. The upper parts of the first stamping drive cylinder and the second stamping drive cylinder are fixed on the inner wall of the double-flip mechanism. The first stamping drive cylinder and the second stamping drive cylinder are driven and connected to the first pressure rod and the second pressure rod. The first stamping drive cylinder and the second stamping drive cylinder connected to the top surfaces of the first pressure rod and the second pressure rod at the upper part of the double-flip mechanism can provide driving force for the transmission mechanism inside the double-flip mechanism.

[0010] Preferably, symmetrical two-turn matching grooves are provided on both sides of the upper mold, and the two-turn matching grooves are located just above the position where the two-turn punching table is attached to the one-turn punching table. The opening of the two-turn matching grooves enables the two-turn punching table to complete the two-turn action of the workpiece and complete the two-turn stamping structure.

[0011] Preferably, a reset spring is connected to the inner side of the position where the second pulley is connected to the first pulley and the position where the first flip seat is connected to the second flip seat, and the two ends of the reset spring are respectively fixed to the second pulley and the outer wall of the first flip seat and the outer wall of the first flip seat and the second flip seat. The setting of the reset spring allows the second pulley to be pulled by the first pulley to be reset after use, or directly follow the first pulley to reset, while the second flip seat and the second flip table can always remain lower than the first flip seat after reset.

[0012] Compared with the related art, the reverse flanging and wedge mechanism provided by the present invention has the following beneficial effects:

[0013] 1. The utility model is provided with two symmetrical sets of double-flipping mechanisms inside the two sides of the punching seat. When the equipment is used to reversely flanging the workpiece, the two sets of synchronously running pressure rods inside the double-flipping mechanism are used to press down to complete the upward movement of the first punching table and the second punching table, and the edge of the workpiece on the upper part of the stamping and flanging table is simultaneously completed with two flanging actions, thereby improving the diversity of the workpiece flanging and the flanging work efficiency.

[0014] 2. A detachable arc-surface punch rod is hinged on one side of the first flipping table close to the second flipping table, which allows the device to change the stamping shape of the flanging according to the required structural type of the flanging during actual use, and can punch out an arc-shaped inward flanging. At the same time, the arc-shaped inward flanging angle can be achieved by driving the driving height of the second punching drive cylinder to achieve the flanging action of the arc stamping depth, and the driving force of the second punching drive cylinder can be adjusted and controlled according to the flanging rebound amount. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic structural diagram of a preferred embodiment of a reverse flanging and wedge mechanism provided by the present invention;

[0016] Figure 2 for Figure 1 The schematic structural diagram of the middle section of the punching seat shown;

[0017] Figure 3 for Figure 2 The structural diagram of the double-turn mechanism shown;

[0018] Figure 4 for Figure 3 The structural sectional exploded diagram of the double-flip mechanism shown.

[0019] Numbers in the figure: 1. Punching seat; 2. Punching and flanging table; 3. Upper die; 4. Double-turn mechanism; 5. First pressure rod; 6. Second pressure rod; 7. First pulley; 8. Second pulley; 9. First-turn punch seat; 10. Second-turn punch seat; 11. First-turn punch table; 12. Second-turn punch table; 13. Arc punch rod; 14. Die seat; 15. Hydraulic equipment; 16. First punch drive cylinder; 17. Second punch drive cylinder; 18. Second-turn matching groove; 19. Reset spring. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0022] Please see the attached Figure 1-Figure 4 The embodiment of the present invention provides a reverse flanging and bevel wedge mechanism, which includes:

[0023] A stamping seat 1, a stamping flanging table 2 is fixed at the center of the upper inner side of the stamping seat 1, the stamping flanging table 2 can place the workpiece that needs to be stamped, an upper mold 3 is provided on the upper part of the stamping flanging table 2, the upper mold 3 can press the workpiece placed on the upper part of the stamping flanging table 2, fix the placed workpiece, and ensure the stability of the workpiece during flanging stamping.

[0024] Two symmetrical sets of double-flipping mechanisms 4 are provided on both sides of the interior of the punching seat 1. The inner side of the double-flipping mechanism 4 includes a first pressure rod 5, and a second pressure rod 6 is provided on one side of the first pressure rod 5. The first pressure rod 5 and the second pressure rod 6 are vertically parallel. A first pulley 7 and a second pulley 8 are provided below the first pressure rod 5 and the second pressure rod 6. The second pulley 8 slides in contact with the top surface of the first pulley 7. The bottom end of the first pressure rod 5 is obliquely attached to the top side of the first pulley 7, and the bottom end of the second pressure rod 6 slides obliquely on the top side of the second pulley 8. The downward movement of the first pressure rod 5 and the second pressure rod 6 can provide an oblique thrust to the first pulley 7 and the second pulley 8.

[0025] The first pulley 7 and the second pulley 8 are obliquely slidably connected to a flipping seat 9 and a second flipping seat 10 on the upper part of one side away from the first pressure rod 5 and the second pressure rod 6. The first pulley 7 and the second pulley 8 can push the first flipping seat 9 and the second flipping seat 10 to move vertically upward through their own horizontal sliding. The workpiece is flanged by using a flipping platform 11 and a second flipping platform 12 arranged on the top of the first flipping seat 9 and the second flipping seat 10, and the two flipping platforms can simultaneously perform flanging structures on both sides of the edge of the workpiece.

[0026] A curved punch rod 13 is hinged at the position where the first flip punching platform 11 connects to the second flip punching platform 12. The design of the curved punch rod 13 can use the second flip punching platform 12 to perform arc-shaped flanging punching on the edge of the workpiece, thereby improving the diversity of the flanging stamping structure.

[0027] A die seat 14 is provided directly above the stamping seat 1, and symmetrical hydraulic equipment 15 are provided on both sides of the die seat 14. The output ends of the hydraulic equipment 15 are connected to both sides of the top surface of the stamping seat 1, and the upper mold 3 is fixed at the center of the bottom surface of the die seat 14. Through the setting of the die seat 14, the hydraulic equipment 15 can automatically drive the opening and closing of the upper mold 3 and the stamping flanging seat, and the hydraulic equipment 15 can improve the strength of the workpiece pressing and improve the stability of the workpiece pressing.

[0028] The top surfaces of the first pressure rod 5 and the second pressure rod 6 are connected with the first stamping drive cylinder 16 and the second stamping drive cylinder 17. The design of the two drive cylinders can provide driving force for the first pressure rod 5 and the second pressure rod 6, and at the same time allow the two pressure rods to have different driving points, thereby realizing a single-group drive of the structure inside the double-flipping mechanism 4, which can be applied when stamping a single-flanged workpiece.

[0029] The provision of the second flanging matching groove 18 on the bottom surface of the upper die 3 can ensure the angle of the second flanging of the workpiece and guarantee the flanging accuracy.

[0030] The design of the reset spring 19 can improve the transmission stability between the first pulley 7 and the second pulley 8, and ensure the reset accuracy. For the first flip seat 9 and the second flip seat 10, it can ensure that after the second flip seat 10 completes its work, it is accurately reset to the bottom of the first flip seat 9.

[0031] Usage process:

[0032] Place the workpiece on the upper part of the stamping and flanging table 2, then start the hydraulic equipment 15, use the upper mold 3 to press and fix the workpiece, and then according to the number of times the workpiece needs to be flanging, use the pneumatic first stamping drive cylinder 16 and the second stamping drive rod to stamp the flanging structure on the edge of the workpiece. After the stamping is completed, start the hydraulic equipment 15 to separate the die seat 14 from the stamping and flanging table 2, and remove the workpiece.

[0033] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0034] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A reverse flanging wedge mechanism, characterized in that: The invention comprises a punching seat (1), wherein a punching flanging platform (2) is provided at the upper center of the inner side of the punching seat (1), and an upper mold (3) is provided above the punching flanging platform (2). Two symmetrical double-turning mechanisms (4) are driven and connected on both sides of the inside of the punching seat (1). The inner side of the double-turning mechanism (4) comprises a first pressure rod (5), and a second pressure rod (6) is provided on one side of the first pressure rod (5). The bottom surfaces of the first pressure rod (5) and the second pressure rod (6) are obliquely fitted and slidably connected with a first pulley (7) and a second pulley (8). The second pulley (8) is fitted and slidably connected to the top surface of the first pulley (7) and is limited by the first pulley (7). The first pulley (7) and the second pulley (8) are elastically connected in position, and a flipping seat (9) and a second flipping seat (10) are vertically fitted and slidably connected on one side away from the first pressure rod (5) and the second pressure rod (6). The first flipping seat (9) and the second flipping seat (10) are fitted and slidably connected. The first flipping seat (9) and the second flipping seat (10) are elastically connected in position limit. The top fitting positions of the first flipping seat (9) and the second flipping seat (10) are respectively provided with a flipping platform (11) and a second flipping platform (12). The first flipping platform (11) is hinged with a curved punch rod (13) on one side close to the second flipping platform (12).

2. A reverse flanging and wedge mechanism according to claim 1, characterized in that: A die seat (14) is provided above the punching seat (1), and the upper mold (3) is fixed at the center of the bottom surface of the die seat (14).

3. A reverse flanging and wedge mechanism according to claim 2, characterized in that: Symmetrical hydraulic devices (15) are fixed on both sides of the die seat (14), and the output ends of the hydraulic devices (15) are connected to both sides of the top surface of the punching seat (1).

4. The reverse flanging and wedge mechanism according to claim 1, characterized in that: The upper part of the double-turn mechanism (4) is located on both sides of the top surface of the first pressure rod (5) and the second pressure rod (6), and a symmetrical first punching drive cylinder (16) and a second punching drive cylinder (17) are vertically fixed. The upper parts of the first punching drive cylinder (16) and the second punching drive cylinder (17) are fixed on the inner wall of the double-turn mechanism (4). The first punching drive cylinder (16) and the second punching drive cylinder (17) are drivingly connected to the first pressure rod (5) and the second pressure rod (6).

5. The reverse flanging and wedge mechanism according to claim 1, characterized in that: Symmetrical two-turn matching grooves (18) are provided on both sides of the upper mold (3), and the two-turn matching grooves (18) are located just above the position where the second turning punching platform (12) is attached to the first turning punching platform (11).

6. The reverse flanging and wedge mechanism according to claim 1, characterized in that: A reset spring (19) is connected to the inner side of the position where the second pulley (8) is connected to the first pulley (7) and the position where the first flip seat (9) is connected to the second flip seat (10), and the two ends of the reset spring (19) are respectively fixed to the outer walls of the second pulley (8) and the first flip seat (9) and the outer walls of the first flip seat (9) and the second flip seat (10).

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