CN110899509A

CN110899509A - Panel side cut forming die

Info

Publication number: CN110899509A
Application number: CN201911291789.XA
Authority: CN
Inventors: 洪明祈; 许增炜
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-16
Filing date: 2019-12-16
Publication date: 2020-03-24

Abstract

The invention discloses a plate trimming and forming die, and belongs to the technical field of dies. The technical scheme of the invention is as follows: the device of the invention can complete two processes of flanging and cutting in the process that the upper die part moves towards the lower die part and finally contacts with each other by arranging the flanging forming surfaces and the cutting blocks at the edges of the flanging forming surfaces, and can adjust the resilience of the pressing core by adjusting the position of the movable positioning plate, so as to reduce the vibration intensity during stamping, reduce the vibration friction force generated by the upper die cutter and the lower die cutter during contact and prolong the service life of the cutter.

Description

Panel side cut forming die

Technical Field

The invention belongs to the technical field of dies, and particularly relates to a plate trimming and forming die.

Background

In the manufacturing process of automobile parts, a large number of sheet-type parts are required to be subjected to trimming and flanging treatments, such as a hood outer panel, a body covering panel, a door inner panel, a rear floor and the like of an automobile engine. In prior art, need two processes just to accomplish to panel edge cutting and turn-ups, every process all need utilize the side cut mould that corresponds and turn-ups mould two kinds, and a plurality of moulds have not only increased the cost of enterprise's production, have also reduced the efficiency of production simultaneously.

Disclosure of Invention

The technical problems to be solved by the invention are as follows: aiming at the problems that two procedures of trimming and flanging are needed in the existing plate trimming and forming process, the cost is high, and the production efficiency is low, a plate trimming and forming die is provided.

In order to solve the technical problems, the invention adopts the following technical scheme:

a plate trimming and forming die comprises an upper die and a lower die; the upper die part comprises an upper die base, an upper die plate and a material pressing core, an upper concave cavity with a downward opening is formed in the upper die plate, the material pressing core is arranged in the upper concave cavity and is in sliding fit with the side wall of the upper concave cavity through vertically arranged sliding rails, and the top of the material pressing core is fixedly connected with a first elastic piece; the lower die part comprises a lower die base, a lower die plate and a material supporting core, a lower concave cavity with an upward opening is formed in the lower die plate, the material supporting core is arranged in the lower concave cavity and is in sliding fit with the side wall of the lower concave cavity through a sliding rail, the bottom of the material supporting core is fixedly connected with a second elastic piece, and the other end of the second elastic piece is elastically connected with the upper surface of the lower die base; the material pressing core and the material supporting core are provided with flanging forming surfaces which are matched with each other, and cutting blocks which are matched with each other are arranged at the edges of the flanging forming surfaces.

The cutting block comprises an upper die cutter fixed on the outermost edge of the upper template and a lower die cutter fixed on the outermost edge of the lower template, wherein the lower die cutter is provided with an upward convex cutting edge, and the lower die cutter is provided with a notch which is matched with the cutting edge in a wedged manner and is used for finishing edge cutting.

The upper die base is provided with an upper die base, the upper die base is provided with a lower die base, the lower die base.

The ejecting guide mechanism comprises guide rods fixed on two sides of the upper template and a rod sleeve fixed on the lower template, a guide hole for the guide rods to extend into is formed in the rod sleeve, and a rebounding mechanism is arranged at the bottom of the guide hole.

The ejection mechanism comprises an elastic layer and a damping slide block, the damping slide block is connected with the guide hole in a sliding mode and can vertically move up and down, and the elastic layer is located at the bottommost part of the guide hole.

And a rubber ring for reducing friction is sleeved on the side wall of the damping slide block.

Wherein, the elastic layer can be made of high-resilience materials such as rubber, metal rubber and the like.

Compared with other methods, the method has the beneficial technical effects that:

the device of the invention can complete two processes of flanging and cutting in the process that the upper die part moves towards the lower die part and finally contacts with each other by arranging the flanging forming surfaces and the cutting blocks at the edges of the flanging forming surfaces, and can adjust the resilience of the pressing core by adjusting the position of the movable positioning plate, so as to reduce the vibration intensity during stamping, reduce the vibration friction force generated by the upper die cutter and the lower die cutter during contact and prolong the service life of the cutter.

Drawings

FIG. 1 is a schematic cross-sectional view of the apparatus of the present invention;

FIG. 2 is an enlarged view of area A of FIG. 1;

1. an upper die holder; 2. mounting a template; 3. pressing the material core; 4. an upper concave cavity; a first elastic member; 6. a lower die holder; 7. a lower template; 8. a material supporting core; 9. a lower concave cavity; 10. a second elastic member; 11. flanging a molding surface; 12. a movable positioning plate; 13. feeding a die cutter; 14. a lower die cutter; 1. a notch; 16. a slide rail; 17. ejecting a guide mechanism; 18. A guide bar; 19. a rod sleeve; 20. a guide hole; 21. an elastic layer; 22. a damping slider; 23. a rubber ring; 24. A rotating member; 2. cutting edges; 26. adjusting the threaded rod; 27. and adjusting a hand wheel.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

A sheet material trimming and forming die shown in fig. 1 and 2 comprises an upper die part and a lower die part; the upper die part comprises an upper die base 1, an upper die plate 2 and a material pressing core 3, an upper cavity 4 with a downward opening is formed in the upper die plate 2, the material pressing core 3 is arranged in the upper cavity 4 and is in sliding fit with the side wall of the upper cavity 4 through vertically arranged slide rails 16, and the top of the material pressing core 3 is fixedly connected with a first elastic piece 5;

the lower die part comprises a lower die base 6, a lower die plate 7 and a material supporting core 8, a lower cavity 9 with an upward opening is formed in the lower die plate 7, the material supporting core 8 is arranged in the lower cavity 9 and is in sliding fit with the side wall of the lower cavity 9 through a sliding rail, the bottom of the material supporting core 8 is fixedly connected with a second elastic part 10, and the other end of the second elastic part 10 is elastically connected with the upper surface of the lower die base 6;

the material pressing core 3 and the material supporting core 8 are provided with flanging forming surfaces 11 which are matched with each other, and cutting blocks which are matched with each other are arranged at the edges of the flanging forming surfaces 11.

Further, the cutting block 12 comprises an upper die cutter 13 fixed on the outermost edge of the upper template 2 and a lower die cutter 14 fixed on the outermost edge of the lower template 7, the lower die cutter 14 is provided with a cutting edge 25 protruding upwards, and the lower die cutter 14 is provided with a notch 15 which is wedged with the cutting edge 25 and is used for finishing edge cutting.

Further, a movable positioning plate 12 is further arranged in the upper cavity 4, the movable positioning plate 12 can freely translate up and down through a sliding rail 16, the left side and the right side of the top of the movable positioning plate 12 are respectively and rotatably connected with an adjusting threaded rod 26 through a rotating part 24, the adjusting threaded rod 26 penetrates through the upper die holder 1 and is in threaded fit with the upper die holder, and an adjusting hand wheel 27 is fixedly connected to the top of the adjusting threaded rod 26.

Further, the ejecting device further comprises an ejecting guide mechanism 17, wherein the ejecting guide mechanism 17 comprises guide rods 18 fixed on two sides of the upper template 2 and a rod sleeve 19 fixed on the lower template 7, a guide hole 20 for the guide rod 18 to extend into is formed in the rod sleeve 19, and a rebound mechanism is arranged at the bottom of the guide hole 20.

Further, the ejection mechanism comprises an elastic layer 21 and a damping slider 22, the damping slider 22 is slidably connected with the guide hole 20 and can vertically move up and down, and the elastic layer 21 is located at the bottommost part of the guide hole 20.

Further, a rubber ring 23 for reducing friction is sleeved on the side wall of the damping slider 22.

Further, the elastic layer 21 may be made of a highly resilient material such as rubber, metal rubber, or the like.

The material pressing core 3 and the upper concave cavity 4, and the material supporting core 8 and the lower concave cavity 9 are in sliding fit through a sliding rail 16. The embodiment is a common sliding fit structure in sliding fit, and the sliding fit structure can be applied as long as the sliding fit can be realized and the purpose of reducing friction is achieved. In addition, the sliding fit is added, so that the material core can move linearly in the concave cavity, and the phenomenon that the material core inclines to influence the accuracy of cutting and flanging positions is avoided. The invention also comprises an ejection guide mechanism 17, wherein the ejection guide mechanism 17 comprises a guide rod 18 fixed on the upper template and a rod sleeve 19 fixed on the lower template, a guide hole 20 for the guide rod to extend into is arranged on the rod sleeve 19, and a rebound mechanism is arranged at the bottom of the guide hole 20; the rebound mechanism comprises an elastic layer 21 and a damping slide block 22;

the ejection guide mechanism 17 is provided with guide and ejection functions, so that the alignment precision of the upper die part and the lower die part can be improved, the deviation of cutting and flanging positions is reduced as much as possible, and the production quality of products is improved. In order to reduce the vibration and friction generated by the contact between the guide rod 18 and the damping slider 22, on one hand, the elastic layer 21 at the bottom of the damping slider 22 converts and absorbs a part of vibration through deformation, and on the other hand, the damping slider 22 generates upward pressure to slow down the moving speed of the damping slider 22 due to the fact that gas in the inner cavity of the bottom is difficult to discharge rapidly in the downward movement process, and the pressure is high, so that high-speed collision is avoided, and the rubber ring 23 fixed on the outer side wall of the damping slider 22 can reduce the friction force generated between the damping slider 22 and the inner wall of the guide hole 20 when the damping slider 22 slides. The working principle of the invention is as follows: during operation, place the flitch of pending on holding in the palm the material core 8, go up the mould part and descend, the effect of pressure down the material core compresses tightly on holding in the palm the material core, compresses tightly the shaping with the flitch, utilizes the turn-ups mechanism on material core 3 and the support material core 8 of pressing simultaneously to the flitch turn-ups, and simultaneously, the cutting module cuts the flitch and handles, and at last, accomplishes cutting and turn-ups process, goes upward so that accomplish and unload in the mould part.

According to the device, the flanging forming surfaces 11 are arranged on the material pressing core 3 and the material supporting core 8, the cutting blocks are arranged on the edges of the flanging forming surfaces 11, flanging and cutting actions can be completed in the relative movement process of the upper die part and the lower die part, and trimming and flanging are completed in one process, so that one die is reduced, the die cost is reduced, the production efficiency is improved, and the device has the advantages of simple structure and low cost.

The skilled person should understand that: although the invention has been described in terms of the above specific embodiments, the inventive concept is not limited thereto and any modification applying the inventive concept is intended to be included within the scope of the patent claims.

Claims

1. The plate trimming and forming die comprises an upper die part and a lower die part, and is characterized in that the upper die part comprises an upper die base (1), an upper die plate (2) and a material pressing core (3), an upper cavity (4) with a downward opening is formed in the upper die plate (2), the material pressing core (3) is arranged in the upper cavity (4) and is in sliding fit with the side wall of the upper cavity (4) through vertically arranged sliding rails (16), and the top of the material pressing core (3) is fixedly connected with a first elastic piece (5); the lower die part comprises a lower die base (6), a lower die plate (7) and a material supporting core (8), a lower concave cavity (9) with an upward opening is formed in the lower die plate (7), the material supporting core (8) is arranged in the lower concave cavity (9) and is in sliding fit with the side wall of the lower concave cavity (9) through a sliding rail, the bottom of the material supporting core (8) is fixedly connected with a second elastic piece (10), and the other end of the second elastic piece (10) is elastically connected with the upper surface of the lower die base (6); the material pressing core (3) and the material supporting core (8) are provided with flanging forming surfaces (11) which are matched with each other, and cutting blocks which are matched with each other are arranged at the edge of the flanging forming surfaces (11).

2. The plate trimming and forming die according to claim 1, wherein the cutting block (12) comprises an upper die cutter (13) fixed on the outermost edge of the upper die plate (2) and a lower die cutter (14) fixed on the outermost edge of the lower die plate (7), the lower die cutter (14) is provided with a cutting edge (25) protruding upwards, and the lower die cutter (14) is provided with a notch (15) which is matched with the cutting edge (25) for completing edge cutting.

3. The plate trimming and forming die according to claim 1, wherein a movable positioning plate (12) is further arranged in the upper cavity (4), the movable positioning plate (12) can freely translate up and down through a sliding rail (16), the left side and the right side of the top of the movable positioning plate (12) are respectively and rotatably connected with an adjusting threaded rod (26) through a rotating member (24), the adjusting threaded rod (26) penetrates through the upper die base (1) and is in threaded fit with the upper die base, and an adjusting hand wheel (27) is fixedly connected to the top of the adjusting threaded rod (26).

4. The die for trimming and forming the sheet material according to any one of claims 1 to 3, further comprising an ejection guide mechanism (17), wherein the ejection guide mechanism (17) comprises guide rods (18) fixed on two sides of the upper die plate (2) and a rod sleeve (19) fixed on the lower die plate (7), a guide hole (20) for the guide rod (18) to extend into is formed in the rod sleeve (19), and a rebound mechanism is arranged at the bottom of the guide hole (20).

5. A sheet trimming die according to claim 4, wherein the ejecting mechanism comprises an elastic layer (21) and a damping slider (22), the damping slider (22) is slidably connected with the guide hole (20) and can vertically move up and down, and the elastic layer (21) is positioned at the bottommost part of the guide hole (20).

6. A kind of panel cut edge forming die according to claim 5, characterized by, the rubber ring (23) used for reducing friction is cup jointed on the sidewall of the said damping slide block (22).

7. A kind of sheet material cut edge shaping die according to claim 5, characterized in that, the elastic layer (21) can be made of high resilience material such as rubber, metal rubber, etc.