CN112792229B

CN112792229B - Drawing and flanging process die assembly shared die structure

Info

Publication number: CN112792229B
Application number: CN202110374776.XA
Authority: CN
Inventors: 张谦
Original assignee: Feigeruite Suzhou Automobile Technology Co ltd
Current assignee: Feigeruite Suzhou Automobile Technology Co ltd
Priority date: 2021-04-08
Filing date: 2021-04-08
Publication date: 2021-07-20
Anticipated expiration: 2041-04-08
Also published as: CN112792229A

Abstract

The invention relates to the technical field of mechanical dies, in particular to a die structure shared by die assembly in a drawing and flanging process, which comprises a first female die, a second female die, at least six cushion blocks, a first male die, a second male die and a blank holder, wherein the first female die, the second female die, the cushion blocks, the first male die, the second male die and the blank holder can be combined into a first combined die and a second combined die according to two combination modes; through adopting one set of mould to realize drawing process and the processing of turn-ups process to the hair cover door exterior panel work piece, can conveniently make the process unite two into one, effectively simplify work piece processing mode, improve work efficiency, reduce mould quantity, reduce mould production cycle, save material improves project development efficiency and reduces the development cost, and compound die mould simple structure simultaneously dismantles the convenience, and the practicality improves.

Description

Drawing and flanging process die assembly shared die structure

Technical Field

The invention relates to the technical field of mechanical dies, in particular to a die structure shared by die assembly in drawing and flanging processes.

Background

As is known, the China automobile market requires that the vehicle model is fast in updating, enterprises need to continuously develop new products, continuously innovate and remodel the appearances of various vehicle bodies, and continuously test and innovate, trial production is a key link for verifying whether the design is correct, each link requiring trial production needs high precision and is completed strictly according to design data, and a hair-hood door outer plate directly influences the development prospect of the whole vehicle model, so that the simple mold forming of the hair-hood door outer plate is an important component of the whole vehicle covering part and is a necessary factor for ensuring the appearance quality of parts.

The simple and easy mould of current hair-cover door outer panel class has some defects, and the main performance is: the drawing and turning processes of the outer plate of the engine cover door adopt different dies to carry out independent processing, the processing processes are more, the casting period of a casting is long, the material cost is higher, the processing period is long, the economization of the whole project is poor, and the excessive waste of resources is caused.

Therefore, a common die structure for drawing and flanging parts such as the outer plate of the hair cover door and the like and closing the die in the flanging process is particularly needed to solve the problems in the prior art.

Disclosure of Invention

In order to solve the technical problem, the invention provides a die structure shared by die assembly in the drawing and flanging processes.

In order to achieve the purpose, the invention adopts the technical scheme that:

the die structure comprises a first female die, a second female die, at least six cushion blocks, a first male die, a second male die and a blank holder seat, wherein the first female die, the second female die, the cushion blocks, the first male die, the second male die and the blank holder seat can be combined into a first combined die and a second combined die according to two combination modes;

the combined die I is used for drawing and processing the workpiece, and the combined die II is used for flanging and processing the workpiece;

the first combined die comprises a first female die, a second female die, at least six cushion blocks, a first male die and a blank holder, the second female die is mounted on the first female die through the cushion blocks and combined into a drawing procedure upper die, and the first male die is mounted in the blank holder and combined into a drawing procedure lower die;

the second combined die comprises a first female die, a second female die and a second male die, the second female die is arranged in the first female die and combined into a flanging-sequence lower die, and the second male die independently becomes a flanging-sequence upper die;

the raw materials of the first female die, the second female die, the cushion block, the first male die, the second male die and the blank holder seat are all made of HT300 cast iron;

the cushion block is T-shaped, and a plurality of through holes are formed in the protruding part in the middle of the cushion block;

a square through hole is communicated with the position, corresponding to the cushion block, of the first female die, a fixing plate is arranged on the outer side of the square through hole and fixed on the first female die, an arc-shaped plate spring is arranged on the fixing plate, pressing plates are arranged at two ends of the arc-shaped plate spring, the two pressing plates are located on the outer side of the square through hole, and a plurality of clamping cylinders are uniformly arranged between the two pressing plates;

one end of the pressing plate, close to the first concave die, is provided with an inclined surface, and one side of the clamping cylinder, close to the first concave die, is provided with an inclined surface.

Furthermore, square guide rods are arranged on two sides of the protruding part in the middle of the cushion block, and the two square guide rods are fixed on the cushion block;

and the first female dies positioned at two sides of the square through hole are communicated with square guide holes, and the positions of the square guide holes correspond to the positions of the square guide rods.

Furthermore, unidirectional teeth are uniformly arranged at the bottom of the cushion block;

and a clamping groove is formed in the position, corresponding to the cushion block, of the second female die, and unidirectional teeth are uniformly arranged in the clamping groove.

Furthermore, pushing grooves are respectively communicated and arranged on the molded surfaces of the second female die and the first male die, a top die is arranged in each group of pushing grooves, the molded surface on the outer side of the top die on the second female die and the molded surface on the second female die are spliced to form a finished model, and the molded surface on the outer side of the top die on the first male die and the molded surface on the first male die are spliced to form the finished model;

and oil cylinders are arranged in the second female die and the first male die, and the movable end on each oil cylinder is connected with the top die in the pushing groove.

Furthermore, guide cylinders are arranged on two sides of the blank holder seat along the length direction, the opening direction of each guide cylinder faces to the hollow-out position inside the blank holder seat, a wedge block is arranged in each guide cylinder in a sliding mode, a screw rod is arranged on each guide cylinder in a threaded mode, and the inner end of each screw rod is rotatably arranged on the corresponding wedge block;

the two sides of the first male die in the length direction are both communicated with inclined holes.

Furthermore, a plurality of groups of fixing holes are formed in the first female die and the blank holder seat, a rotary oil guide pipe is rotatably arranged in each group of fixing holes along the radial direction of the fixing holes, an oil discharge bent pipe is communicated with the rotary oil guide pipe, the opening of the oil discharge bent pipe is in a bent flat shape, a vibration plate spring is arranged on the oil discharge bent pipe, and the outer side of the vibration plate spring is fixed on the inner wall of the fixing hole;

the first female die and the blank holder seat are respectively provided with a plurality of groups of oil inlet pipes, and the oil inlet pipes are communicated with the oil discharge bent pipe.

Furthermore, hoisting holes are formed in the outer walls of the first female die, the second female die, the first male die, the second male die and the blank holder seat.

Compared with the prior art, the invention has the beneficial effects that: through adopting one set of mould to realize drawing process and the processing of turn-ups process to the hair cover door exterior panel work piece, can conveniently make the process unite two into one, effectively simplify work piece processing mode, improve work efficiency, reduce mould quantity, reduce mould production cycle, save material improves project development efficiency and reduces the development cost, and compound die mould simple structure simultaneously dismantles the convenience, and the practicality improves.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a front view of the present invention;

FIG. 2 is a schematic cross-sectional view of the first punch and the retainer seat of FIG. 1;

FIG. 3 is a schematic rear side oblique view of the first female die in FIG. 1;

FIG. 4 is an enlarged view of a portion A of FIG. 1;

FIG. 5 is an enlarged view of a portion B of FIG. 1;

FIG. 6 is an enlarged view of a portion of the structure of FIG. 1 at C;

FIG. 7 is an enlarged view of a portion of the structure of FIG. 2 at D;

FIG. 8 is an enlarged view of a portion E of FIG. 3;

in the drawings, the reference numbers: 1. a first female die; 2. a second female die; 3. cushion blocks; 4. a first male die; 5. a second male die; 6. a blank holder seat; 7. a through hole; 8. a square through hole; 9. an arc-shaped plate spring; 10. pressing a plate; 11. clamping the cylinder; 12. a square guide bar; 13. a square guide hole; 14. carrying out top die; 15. an oil cylinder; 16. a guide cylinder; 17. a wedge block; 18. a screw; 19. an inclined hole; 20. rotating the oil guide pipe; 21. an oil discharge elbow pipe; 22. a vibrating plate spring; 23. an oil inlet pipe; 24. Hoisting holes; 25. and (7) fixing the plate.

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.

In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. This embodiment is written in a progressive manner.

As shown in fig. 1 to 8, the die structure shared by the die assembly in the drawing and flanging processes of the present invention comprises a first female die 1, a second female die 2, at least six cushion blocks 3, a first male die 4, a second male die 5 and a binder ring seat 6, wherein the first female die 1, the second female die 2, the cushion blocks 3, the first male die 4, the second male die 5 and the binder ring seat 6 can be combined into a combined die i and a combined die ii according to two combination modes;

the first combined die comprises a first female die 1, a second female die 2, at least six cushion blocks 3, a first male die 4 and a blank holder seat 6, the second female die 2 is mounted on the first female die 1 through the cushion blocks 3 and combined into a drawing procedure upper die, and the first male die 4 is mounted in the blank holder seat 6 and combined into a drawing procedure lower die;

the second combined die comprises a first female die 1, a second female die 2 and a second male die 5, the second female die 2 is arranged in the first female die 1 and combined into a flanging-sequence lower die, and the second male die 5 independently becomes a flanging-sequence upper die;

the raw materials of the first female die 1, the second female die 2, the cushion block 3, the first male die 4, the second male die 5 and the blank holder seat 6 are all made of HT300 cast iron;

the cushion block 3 is T-shaped, and a plurality of through holes 7 are formed in the protruding part in the middle of the cushion block 3;

a square through hole 8 is communicated with a position, corresponding to the cushion block 3, on the first female die 1, a fixing plate 25 is arranged on the outer side of the square through hole 8, the fixing plate 25 is fixed on the first female die 1, an arc-shaped plate spring 9 is arranged on the fixing plate 25, pressing plates 10 are arranged at two ends of the arc-shaped plate spring 9, the two pressing plates 10 are located on the outer side of the square through hole 8, and a plurality of clamping cylinders 11 are uniformly arranged between the two pressing plates 10;

one end, close to the first concave die 1, of the pressing plate 10 is provided with an inclined surface, and one side, close to the first concave die 1, of the clamping cylinder 11 is provided with an inclined surface.

In this embodiment, through adopting one set of mould to realize drawing process and the processing of turn-ups process to the hair-guard door exterior plate work piece, can conveniently make the process unite two into one, effectively simplify work piece processing mode, improve work efficiency, reduce mould quantity, reduce mould production cycle, save material improves project development efficiency and reduces the development cost, and compound die mould simple structure simultaneously dismantles the convenience, and the practicality improves.

In this embodiment, the protruding portion of the middle of the cushion block 3 penetrates through the square through hole 8 and extends into the space between the two pressing plates 10, the two pressing plates 10 elastically extrude and fix the cushion block 3 through the arc-shaped plate spring 9, meanwhile, the clamping cylinder 11 on the pressing plate 10 is inserted into the corresponding through hole 7, so that the cushion block 3 is fixed on the first female die 1, the cushion block 3 is quickly assembled, meanwhile, the clamping cylinder 11 can clamp and fix the cushion block 3 through the through hole 7, because one end, close to the first female die 1, of the pressing plate 10 is set to be an inclined surface, one side, close to the first female die 1, of the clamping cylinder 11 is set to be an inclined surface, and the cushion block 3 can be conveniently and quickly inserted into the space between the two pressing plates 10.

As a preference of the above embodiment, two sides of the protruding part in the middle of the cushion block 3 are provided with square guide rods 12, and the two square guide rods 12 are fixed on the cushion block 3;

and square guide holes 13 are communicated with the first female die 1 positioned at two sides of the square through hole 8, and the positions of the square guide holes 13 correspond to the positions of the square guide rods 12.

In this embodiment, when cushion 3 assembles on first die 1, two square guide bars 12 on the cushion 3 insert two square guiding holes 13 respectively in, through setting up square guide bar 12 and square guiding hole 13, can conveniently lead to the processing to cushion 3, improve the assembly fastness and the assembly precision of cushion 3.

As a preference of the above embodiment, the bottom of the cushion block 3 is uniformly provided with one-way teeth;

and a clamping groove is formed in the position, corresponding to the cushion block 3, of the second female die 2, and unidirectional teeth are uniformly arranged in the clamping groove.

In this embodiment, when cushion 3 assembles on second die 2, one-way tooth on cushion 3 and the one-way tooth intermeshing on the second die 2 clamp fixedly, through setting up one-way tooth, can conveniently carry out its location processing to second die 2 and cushion 3, improve the contact fastness and the assembly precision between second die 2 and the cushion 3 simultaneously, avoid second die 2 to adorn anti-.

Preferably, the molded surfaces of the second female die 2 and the first male die 4 are both communicated with each other to form pushing grooves, each group of pushing grooves is provided with a top die 14, the molded surface of the second female die 2 on the outer side of the top die 14 and the molded surface of the second female die 2 are spliced to form a finished model, and the molded surface of the first male die 4 on the outer side of the top die 14 and the molded surface of the first male die 4 are spliced to form a finished model;

oil cylinders 15 are arranged in the second female die 2 and the first male die 4, and the movable ends of the oil cylinders 15 are connected with a top die 14 in a pushing groove.

In this embodiment, when the drawing process is performed, the workpiece on the first male die 4 is stamped, the oil cylinder 15 on the first male die 4 can push the top die 14 thereon to move upward, the top die 14 can push the workpiece to separate from the first male die 4, so that the workpiece is conveniently taken down, when the flanging process is performed, the workpiece on the second female die 2 is stamped, the oil cylinder 15 on the second female die 2 can push the top die 14 thereon to move upward, and the top die 14 can push the workpiece to separate from the second female die 2, so that the workpiece is conveniently taken down, and the stamped workpiece is prevented from being clamped on the second female die 2 or the first male die 4.

Preferably, as for the above embodiment, the blank holder seat 6 is provided with guide cylinders 16 on both sides along the length direction, the opening direction of each guide cylinder 16 faces the hollow-out position inside the blank holder seat 6, a wedge block 17 is slidably arranged inside each guide cylinder 16, a screw 18 is screwed on each guide cylinder 16, and the inner end of each screw 18 is rotatably mounted on the corresponding wedge block 17;

the two sides of the first male die 4 along the length direction are both communicated with inclined holes 19.

In this embodiment, when the first male die 4 in the blank holder 6 needs to be disassembled, the screw 18 is rotated, the screw 18 pushes the wedge 17 to slide into the corresponding inclined hole 19 on the first male die 4, the wedge 17 contacts with the inner wall of the inclined surface on the first male die 4, and the wedge 17 in a moving state pushes the first male die 4 to move upwards in the blank holder 6 through the inclined hole 19, so that the first male die 4 is conveniently separated from the blank holder 6, and the phenomenon that the first male die 4 is clamped in the blank holder 6 and cannot be disassembled and separated when the first male die 4 and the blank holder 6 are used for a long time is avoided.

Preferably, as for the above embodiment, a plurality of groups of fixing holes are formed in each of the first female die 1 and the blank holder seat 6, a rotary oil guide pipe 20 is rotatably arranged in each group of fixing holes along the radial direction of the fixing hole, an oil discharge bent pipe 21 is communicated with the rotary oil guide pipe 20, the opening of the oil discharge bent pipe 21 is in a bent flat shape, a vibrating plate spring 22 is arranged on the oil discharge bent pipe 21, and the outer side of the vibrating plate spring 22 is fixed on the inner wall of the fixing hole;

the first female die 1 and the blank holder seat 6 are respectively provided with a plurality of groups of oil inlet pipes 23, and the oil inlet pipes 23 are communicated with the oil discharge bent pipe 21.

In this embodiment, before the second female die 2 is installed in the first female die 1, the lubricating oil is injected into the inner wall of the first female die 1 through the oil inlet pipe 23, the rotating oil guide pipe 20 and the oil discharge bent pipe 21 on the first female die 1, so as to lubricate the inner wall of the first female die 1, and thus to smoothly install the second female die 2 in the first female die 1, before the first male die 4 is installed in the blank holder 6, the lubricating oil is injected into the inner wall of the blank holder 6 through the oil inlet pipe 23, the rotating oil guide pipe 20 and the oil discharge bent pipe 21 on the blank holder 6, so as to lubricate the inner wall of the blank holder 6, so as to smoothly install the first male die 4 in the blank holder 6, so as to reduce the friction force during the assembly of the die, and since the opening of the oil discharge bent pipe 21 is in a curved flat shape, the lubricating oil can be conveniently diffused completely, since the shape of the oil discharge bent pipe 21 is curved, when the lubricating oil is injected from the oil discharge bent pipe 21, the oil discharge elbow 21 pushes the vibration plate spring 22 reversely to generate a pushing force, and the vibration plate spring 22 elastically vibrates and drives the oil discharge elbow 21 and the rotation oil guide pipe 20 to swing, so that the spreading area of the lubricating oil sprayed out by the oil discharge elbow 21 is increased.

Preferably, the outer walls of the first female die 1, the second female die 2, the first male die 4, the second male die 5 and the binder seat 6 are all provided with hoisting holes 24.

In this embodiment, through setting up hole for hoist 24, can conveniently hoist first die 1, second die 2, first terrace die 4, second terrace die 5 and blank holder seat 6 and shift the processing, save the physical power of artifical transport.

The die structure shared by the drawing and flanging processes is common in mounting mode, connecting mode or setting mode, and can be implemented as long as the beneficial effects are achieved.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A die structure shared by drawing and flanging processes and die assembly is characterized by comprising a first female die (1), a second female die (2), at least six cushion blocks (3), a first male die (4), a second male die (5) and a blank holder seat (6), wherein the first female die (1), the second female die (2), the cushion blocks (3), the first male die (4), the second male die (5) and the blank holder seat (6) can be combined into a combined die I and a combined die II according to two combination modes;

the combined die I comprises a first female die (1), a second female die (2), at least six cushion blocks (3), a first male die (4) and a blank holder seat (6), wherein the second female die (2) is installed on the first female die (1) through the cushion blocks (3) and combined into a drawing procedure upper die, and the first male die (4) is installed in the blank holder seat (6) and combined into a drawing procedure lower die;

the second combined die comprises a first female die (1), a second female die (2) and a second male die (5), the second female die (2) is arranged in the first female die (1) and combined into a flanging-sequence lower die, and the second male die (5) independently becomes a flanging-sequence upper die;

the raw materials of the first female die (1), the second female die (2), the cushion block (3), the first male die (4), the second male die (5) and the blank holder seat (6) are all made of HT300 cast iron;

the cushion block (3) is T-shaped, and a plurality of through holes (7) are formed in the protruding part in the middle of the cushion block (3);

a square through hole (8) is communicated with a position, corresponding to the cushion block (3), on the first female die (1), a fixing plate (25) is arranged on the outer side of the square through hole (8), the fixing plate (25) is fixed on the first female die (1), an arc-shaped plate spring (9) is arranged on the fixing plate (25), pressing plates (10) are arranged at two ends of the arc-shaped plate spring (9), the two pressing plates (10) are located on the outer side of the square through hole (8), and a plurality of clamping cylinders (11) are uniformly arranged between the two pressing plates (10);

one end, close to the first concave die (1), of the pressing plate (10) is provided with an inclined surface, and one side, close to the first concave die (1), of the clamping cylinder (11) is provided with an inclined surface.

2. The die structure shared by the die assembly in the drawing and flanging processes as claimed in claim 1, wherein square guide rods (12) are arranged on two sides of the protruding part in the middle of the cushion block (3), and the two square guide rods (12) are fixed on the cushion block (3);

the first female die (1) positioned on two sides of the square through hole (8) is communicated with a square guide hole (13), and the position of the square guide hole (13) corresponds to the position of the square guide rod (12).

3. The die structure shared by the die assembly of the drawing and flanging processes as claimed in claim 2, wherein the bottom of the cushion block (3) is uniformly provided with one-way teeth;

and a clamping groove is formed in the position, corresponding to the cushion block (3), of the second female die (2), and unidirectional teeth are uniformly arranged in the clamping groove.

4. The die structure shared by the die assembly in the drawing and flanging processes according to claim 3, wherein the molded surfaces of the second female die (2) and the first male die (4) are respectively communicated with a pushing groove, each pushing groove is internally provided with a top die (14), the molded surface on the outer side of the top die (14) on the second female die (2) and the molded surface on the second female die (2) are spliced to form a finished model, and the molded surface on the outer side of the top die (14) on the first male die (4) and the molded surface on the first male die (4) are spliced to form the finished model;

oil cylinders (15) are arranged in the second female die (2) and the first male die (4), and the movable ends of the oil cylinders (15) are connected with a top die (14) in the pushing grooves.

5. The die structure shared by the drawing and flanging processes and the die assembly according to claim 4, wherein guide cylinders (16) are arranged on two sides of the blank holder seat (6) along the length direction, the opening direction of each guide cylinder (16) faces to the hollow part inside the blank holder seat (6), a wedge block (17) is arranged inside each guide cylinder (16) in a sliding mode, a screw rod (18) is arranged on each guide cylinder (16) in a threaded mode, and the inner end of each screw rod (18) is rotatably arranged on the corresponding wedge block (17);

the two sides of the first male die (4) in the length direction are both communicated with inclined holes (19).

6. The die structure shared by the die assembly in the drawing and flanging processes according to claim 5, wherein a plurality of groups of fixing holes are formed in the first female die (1) and the blank holder seat (6), a rotary oil guide pipe (20) is rotatably arranged in each group of fixing holes along the radial direction of the fixing holes, an oil discharge bent pipe (21) is communicated with the rotary oil guide pipe (20), the opening of the oil discharge bent pipe (21) is bent and flat, a vibrating plate spring (22) is arranged on the oil discharge bent pipe (21), and the outer side of the vibrating plate spring (22) is fixed on the inner wall of the fixing hole;

the first female die (1) and the blank holder seat (6) are respectively provided with a plurality of groups of oil inlet pipes (23), and the oil inlet pipes (23) are communicated with the oil discharge bent pipe (21).

7. The die structure shared by the die assembly in the drawing and flanging processes according to claim 6, wherein the outer walls of the first female die (1), the second female die (2), the first male die (4), the second male die (5) and the blank holder seat (6) are provided with hoisting holes (24).