CN215587575U

CN215587575U - Stamping die for workpiece shaping

Info

Publication number: CN215587575U
Application number: CN202121903876.9U
Authority: CN
Inventors: 苏会; 胡伟; 肖武
Original assignee: Wuhan Santeli Mould Technology Co ltd
Current assignee: Wuhan Santeli Mould Technology Co ltd
Priority date: 2021-08-12
Filing date: 2021-08-12
Publication date: 2022-01-21
Anticipated expiration: 2031-08-12

Abstract

The utility model provides a stamping die for shaping a workpiece, which comprises an upper die, a lower die and the workpiece, wherein the upper die and the lower die are matched with each other, the workpiece is arranged between the upper die and the lower die, the workpiece is provided with an opening, the opening is buckled on the lower die, and the lower die comprises a lower die main body, a second fixing part and a movable part; the movable part is arranged on the lower die main body and is positioned in the opening, and the movable part can move towards the direction of the inner wall of the opening relative to the lower die main body and is abutted against the inner wall of the opening; the second fixing part is arranged on the lower die main body and positioned outside the opening, the end face, facing the opening, of the second fixing part is tightly attached to the outer surface of the opening, and the second fixing part can be abutted against the movable part and the upper die simultaneously and matched with the movable part and the upper die; the movable part moves synchronously along with the upper die and abuts against the inner wall of the opening, and is matched with the upper die and the second fixing part, so that the protruding part at the position of the opening is punched, a special side punching mechanism is not needed, and the punching process is completed in one step.

Description

Stamping die for workpiece shaping

Technical Field

The utility model relates to the technical field of stamping dies, in particular to a stamping die for shaping a workpiece.

Background

The end of an intake pipe or an exhaust pipe of an automobile is usually provided with a tapered structure, which becomes an intake and exhaust cone or an intake and exhaust end cone. The inlet and exhaust cones are generally in the form of inverted bowls or shrouds, and typically form a plurality of humps, also known as negative angle pockets, at the edges of the openings. The air inlet and outlet cone is shaped in a special structure, so that the production is generally finished by adopting a die stamping mode in industry.

At present, the negative angle packet of an air inlet and outlet end cone is subjected to punch forming and is generally finished by adopting a side punching mechanism; meanwhile, after the negative angle packet is subjected to punch forming, the opening of the workpiece needs to be shaped, so that the opening is circular or regular polygonal, and the edge of the opening is smooth and mellow. Therefore, the problems of large volume of stamping die equipment, complex production process, low efficiency, high production cost and the like are caused.

SUMMERY OF THE UTILITY MODEL

In view of the above, the utility model provides a stamping die for workpiece shaping, which has simple working procedures and small equipment volume.

The technical scheme of the utility model is realized as follows: the utility model provides a stamping die for shaping a workpiece, which comprises an upper die, a lower die and the workpiece, wherein the upper die and the lower die are matched with each other, the workpiece is arranged between the upper die and the lower die, the workpiece is provided with an opening, the opening is buckled on the lower die, and the lower die comprises a lower die main body, a second fixing part and a movable part; the movable part is arranged on the lower die main body and is positioned in the opening, and the movable part can move towards the direction of the inner wall of the opening relative to the lower die main body and is abutted against the inner wall of the opening; the second fixing part is arranged on the lower die main body and located on the outer side of the opening, the end face, facing the opening, of the second fixing part is tightly attached to the outer surface of the opening, and the second fixing part can be abutted to the movable part and the upper die simultaneously and matched with the movable part and the upper die.

On the basis of the above technical scheme, preferably, the end face of the movable part facing the inner wall of the opening is provided with a protruding part, and the parts of the second fixing part and the upper die, which are abutted against the movable part, are respectively provided with a recess matched with the protruding part.

On the basis of the technical scheme, preferably, the upper die comprises an upper die main body and a linkage part, the upper die main body moves towards the lower die and is matched with the first fixing part, the linkage part is connected with the upper die main body, and the linkage part moves synchronously with the upper die main body and can drive the movable part to move towards the direction of the inner wall of the opening relative to the lower die main body.

Preferably, the lower die body is internally provided with a cavity, the linkage part comprises a linkage arm, a movable part, a connecting rod and a pressing part, one end of the linkage arm is connected to the upper die body, the other end of the linkage arm extends along the moving direction of the upper die body and penetrates through the lower die body to be inserted into the cavity, the movable part is arranged at one end of the linkage arm inserted into the cavity, the movable part is positioned in the cavity and synchronously moves with the upper die body in the cavity, the movable part is connected with one end of the connecting rod, the other end of the connecting rod penetrates through the lower die body and is inserted into the gap, the pressing part is arranged at one end of the connecting rod inserted into the gap, the pressing part and the lower die body are arranged at intervals, the pressing part and the movable part are arranged at intervals, the pressing part can synchronously move towards the lower die body along with the upper die body and press one end of the movable part, which is far away from the inner wall of the opening, so that the movable part moves towards the direction of the inner wall of the opening.

Preferably, the cross section of the pressing piece along the moving direction of the upper die is an inverted isosceles trapezoid, one side of the cross section of the movable part along the moving direction of the upper die, which is far away from the inner wall of the opening, is an inclined edge, and the inclined edge of the cross section of the movable part is parallel to the inclined edge of the cross section of the pressing piece.

Preferably, the number of the movable parts is several, the movable parts are circumferentially arranged around the pressing part, the moving direction of each movable part is crossed at the same point, and the moving direction of each movable part is crossed with the axis of the pressing part.

On the basis of the above technical scheme, preferably, the movable part is provided with a sliding chute, two ends of the sliding chute extend along the moving direction of the movable part, and two sides of the sliding chute respectively penetrate through the end faces of the movable part, which face the lower die main body and the first fixing part; the lower die further comprises a first fixing part and a support, the first fixing part is arranged on the lower die main body and is arranged at intervals with the lower die main body to form a gap, the first fixing part is matched with the upper die, a workpiece is arranged between the first fixing part and the upper die, a movable part is arranged in the gap, and the edge of the opening extends into the gap; the pillar is arranged between the first fixing part and the lower die main body and is positioned in the sliding groove.

Still further preferably, still include canceling release mechanical system, canceling release mechanical system sets up between second fixed part and movable part, and canceling release mechanical system is used for driving the movable part to keep away from the second fixed part and reset along the spout extending direction.

Compared with the prior art, the stamping die for shaping the workpiece has the following beneficial effects that:

(1) the movable part is arranged to move synchronously along with the upper die and abuts against the inner wall of the opening, and is matched with the upper die and the second fixing part, so that the protruding part at the opening position is punched, a special side punching mechanism is not needed, the equipment size is small, the punching process is in place in one step, and the process is simpler.

(2) The movable parts are arranged to surround the pressing part and push the movable parts to synchronously move and press against the inner wall of the opening through the pressing part, so that the shape of the inner wall of the opening is shaped, the process is simple, and the efficiency is high.

(3) Set up canceling release mechanical system between second fixed part and movable part, on the one hand help equipment to accomplish the punching press back movable part and reset, on the other hand avoids the opening to be blocked by the bellying to cause the problem that the work piece is difficult to get and put, help the material returned of work piece.

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 of 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 perspective view of a stamping die of the present invention;

FIG. 2 is a front cross-sectional view of the stamping die of the present invention;

FIG. 3 is a perspective view of the lower mold of the present invention;

FIG. 4 is a partial perspective view of the lower mold of the present invention;

fig. 5 is a perspective view of a workpiece of the present invention.

In the figure: 1. an upper die; 11. an upper die main body; 12. a linkage section; 121. a linkage arm; 122. a movable member; 123. a connecting rod; 124. a pressing member; 2. a lower die; 21. a lower die main body; 22. a first fixed part; 23. a second fixed part; 24. a movable portion; 25. a pillar; 201. a gap; 202. a cavity; 203. a chute; 3. a workpiece; 31. an opening; 32. a boss portion; 33. recessing; 4. a reset mechanism.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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 obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

As shown in fig. 1 and fig. 5, the stamping die for reshaping a workpiece according to the present invention includes an upper die 1 and a lower die 2 that are matched with each other, a workpiece 3 that is disposed between the upper die 1 and the lower die 2, and a reset mechanism 4.

The workpiece 3 has an opening 31, and the opening 31 is buckled on the lower mold 2, and the lower mold 2 includes a lower mold body 21, a second fixing portion 23 and a movable portion 24.

The movable portion 24 is disposed on the lower die body 21 and located in the opening 31, and the movable portion 24 can move toward the inner wall of the opening 31 relative to the lower die body 21 and abut against the inner wall of the opening 31. The movable portion 24 can be moved by an external driving mechanism, but it is necessary to move the movable portion 24 in synchronization with the movement of the upper die 1 in order to solve the one-step press process to be solved by the present invention.

The second fixed part 23 is arranged on the lower die main body 21 and positioned outside the opening 31, the end surface of the second fixed part 23 facing the opening 31 is tightly attached to the outer surface of the opening 31, and the second fixed part 23 can be simultaneously abutted and matched with the movable part 24 and the upper die 1; the movable portion 24 and the second fixing portion 23 punch and clamp the edge of the opening 31 of the workpiece 3, thereby finishing the shaping of the opening 31.

Furthermore, a convex portion 32 is provided on an end surface of the movable portion 24 facing an inner wall of the opening 31, and a concave portion 33 is provided in each of the second fixing portion 23 and a portion of the upper die 1 abutting against the movable portion 24 so as to fit the convex portion 32, thereby press-forming the negative-angle packet to the workpiece 3.

Specifically, the present invention is realized by the following means.

As shown in fig. 1 and fig. 2, the upper mold 1 includes an upper mold body 11 and a linking portion 12, the upper mold body 11 moves toward the lower mold 2 and is engaged with the first fixing portion 22, the linking portion 12 is connected to the upper mold body 11, and the linking portion 12 moves synchronously with the upper mold body 11 and drives the movable portion 24 to move toward the inner wall of the opening 31 relative to the lower mold body 21.

In order to realize that the linkage portion 12 drives the movable portion 24 to move, specifically, a cavity 202 is formed in the lower die main body 21, the linkage portion 12 includes a linkage arm 121, a movable member 122, a connecting rod 123 and a pressing member 124, one end of the linkage arm 121 is connected to the upper die main body 11, the other end of the linkage arm 121 extends along the moving direction of the upper die main body 11 and penetrates through the lower die main body 21 to be inserted into the cavity 202, the movable member 122 is arranged at one end of the linkage arm 121 inserted into the cavity 202, the movable member 122 is positioned in the cavity 202 and moves synchronously with the upper die main body 11 in the cavity 202, the movable member 122 is connected with one end of the connecting rod 123, the other end of the connecting rod 123 penetrates through the lower die main body 21 and is inserted into the gap 201, the pressing member 124 is arranged at one end of the connecting rod 123 inserted into the gap, the pressing member 124 is arranged at an interval with the lower die main body 21, and the pressing member 124 is arranged at an interval with the movable portion 24, the pressing member 124 can move synchronously towards the lower die main body 21 and press one end of the movable portion 24 far from the inner wall of the opening 31 with the upper die main body 11, the movable portion 24 is moved toward the inner wall of the opening 31.

Preferably, the cross section of the pressing member 124 along the moving direction of the upper die 1 is an inverted isosceles trapezoid, the side of the cross section of the movable portion 24 along the moving direction of the upper die 1, which is far away from the inner wall of the opening 31, is an oblique side, and the oblique side of the cross section of the movable portion 24 is parallel to the oblique side of the cross section of the pressing member 124.

It should be noted that the pressing member 124 may be in the shape of an inverted cone, and accordingly, in order to match the side arc surface of the pressing member 124, the end surface of the movable portion 24 on the side away from the opening 31 is an obliquely arranged arc surface; the pressing member 124 may be an inverted pyramid column, and in this case, an end surface of the movable portion 24 away from the opening 31 is an inclined surface.

Furthermore, there are several movable parts 24, several movable parts 24 are circumferentially arranged around the pressing part 124, the moving direction of each movable part 24 crosses the same point, and the moving direction of each movable part 24 intersects with the axis of the pressing part 124; the end surface of the movable portion 24 on the side facing the opening 31 may be a curved surface so as to shape the opening 31 into a circular or elliptical shape; however, the end surface of the movable portion 24 facing the opening 31 may be a flat surface so as to shape the opening 31 into a regular polygon.

Because the first fixing portion 22 and the lower die main body 21 are spaced apart from each other in the present technical solution, and the position of the first fixing portion 22 needs to be kept still to place the workpiece 3, as shown in fig. 1, in combination with fig. 4, the movable portion 24 is provided with a sliding slot 203, two ends of the sliding slot 203 extend along the moving direction of the movable portion 24, and two sides of the sliding slot 203 respectively penetrate through the end surfaces of the movable portion 24 facing the lower die main body 21 and the first fixing portion 22.

The lower die 2 further comprises a first fixing part 22 and a support 25, the first fixing part 22 is arranged on the lower die main body 21 and is spaced from the lower die main body 21 to form a gap 201, the first fixing part 22 is matched with the upper die 1, a workpiece 3 is arranged between the first fixing part 22 and the upper die 1, a movable part 24 is arranged in the gap 201, and the edge of the opening 31 extends into the gap 201; the support post 25 is provided between the first fixed portion 22 and the lower die main body 21 and is located in the slide groove 203, thereby ensuring that the movable portion 24 can move freely in the gap 201.

In addition, in order to realize that the movable part 24 can be quickly separated from the inner wall of the opening 31 for resetting after the movable part 24 abuts against the inner wall of the opening 31 to complete the punching and shaping of the opening 31, thereby facilitating the taking and placing of the workpiece 3, the utility model is also realized by the following means.

As shown in fig. 1 and fig. 3, the device further includes a reset mechanism 4, the reset mechanism 4 is disposed between the second fixed portion 23 and the movable portion 24, and the reset mechanism 4 is configured to drive the movable portion 24 to move away from the second fixed portion 23 along the extending direction of the sliding chute 203 and reset. The return mechanism 4 is generally a nitrogen cylinder mechanism, but a mechanism having a return performance such as a spring may be used.

The working principle is as follows:

the workpiece 3 is fastened to the first fixing portion 22 through the opening 31 with the edge of the opening 31 at the position of the gap 201.

Starting the stamping die, pressing down the upper die 1 to enable the upper die main body 11 and the first fixing part 22 to clamp and fix the workpiece 3; since the interlocking portion 12 moves downward in synchronization with the upper die body 11, the pressing member 124 moves downward, thereby pushing the movable portion 24 to move toward the inner wall of the opening 31 and finally to abut on the inner wall of the opening 31, while the movable portion 24, the second fixing portion 23 and the edge of the upper die body 11 cooperate to punch-form the convex portion 32 on the surface of the opening 31 of the workpiece 3.

Meanwhile, the movable parts 24 synchronously move and abut against the inner wall of the opening 31, so that the inner wall of the opening 31 is uniformly extruded to form a smooth regular shape of a circle or a regular polygon, and the shaping of the opening 31 is further completed.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a stamping die for work piece plastic, includes that mutually support last mould (1) and bed die (2) and set up work piece (3) between last mould (1) and bed die (2), work piece (3) have opening (31) and opening (31) to detain on bed die (2), its characterized in that: the lower die (2) comprises a lower die main body (21), a second fixed part (23) and a movable part (24);

the movable part (24) is arranged on the lower die main body (21) and is positioned in the opening (31), and the movable part (24) can move towards the inner wall direction of the opening (31) relative to the lower die main body (21) and is abutted against the inner wall of the opening (31);

the second fixing part (23) is arranged on the lower die main body (21) and located on the outer side of the opening (31), the end face, facing the opening (31), of the second fixing part (23) is tightly attached to the outer surface of the opening (31), and the second fixing part (23) can be abutted to the movable part (24) and the upper die (1) simultaneously and matched with each other.

2. A press die for reshaping a workpiece as defined in claim 1, wherein: the end face of the movable part (24) facing the inner wall of the opening (31) is provided with a convex part (32), and the parts of the second fixing part (23) and the upper die (1) abutted against the movable part (24) are respectively provided with a concave part (33) matched with the convex part (32).

3. A press die for reshaping a workpiece as defined in claim 1, wherein: go up mould (1) including last mould main part (11) and linkage portion (12), it moves and cooperatees with first fixed part (22) towards bed die (2) to go up mould main part (11), linkage portion (12) are connected with last mould main part (11), linkage portion (12) are along with last mould main part (11) synchronous motion and can order about movable part (24) and move towards opening (31) inner wall direction for lower mould main part (21).

4. A press die for reshaping a workpiece as defined in claim 3, wherein: a cavity (202) is formed in the lower die main body (21), the linkage part (12) comprises a linkage arm (121), a movable piece (122), a connecting rod (123) and a pressing piece (124), one end of the linkage arm (121) is connected to the upper die main body (11), the other end of the linkage arm (121) extends along the moving direction of the upper die main body (11) and penetrates through the lower die main body (21) to be inserted into the cavity (202), the movable piece (122) is arranged at one end of the linkage arm (121) inserted into the cavity (202), the movable piece (122) is positioned in the cavity (202) and synchronously moves with the upper die main body (11) in the cavity (202), the movable piece (122) is connected with one end of the connecting rod (123), the other end of the connecting rod (123) penetrates through the lower die main body (21) and is inserted into the gap (201), and the pressing piece (124) is arranged at one end of the connecting rod (123) inserted into the gap (201), the pressing piece (124) and the lower die main body (21) are arranged at intervals, the pressing piece (124) and the movable part (24) are arranged at intervals, and the pressing piece (124) can synchronously move towards the lower die main body (21) along with the upper die main body (11) and press against one end, away from the inner wall of the opening (31), of the movable part (24), so that the movable part (24) moves towards the inner wall of the opening (31).

5. A press die for reshaping a workpiece as defined in claim 4, wherein: the cross section of the pressing piece (124) along the moving direction of the upper die (1) is an inverted isosceles trapezoid, one side, away from the inner wall of the opening (31), of the cross section of the movable part (24) along the moving direction of the upper die (1) is an inclined edge, and the inclined edge of the cross section of the movable part (24) is parallel to the inclined edge of the cross section of the pressing piece (124).

6. A press die for reshaping a workpiece as defined in claim 5, wherein: the number of the movable parts (24) is multiple, the plurality of the movable parts (24) are circumferentially arranged around the pressing part (124), the moving directions of the movable parts (24) are intersected at the same point, and the moving directions of the movable parts (24) are intersected with the axis of the pressing part (124).

7. A press die for reshaping a workpiece as defined in claim 1, wherein: the movable part (24) is provided with a sliding chute (203), two ends of the sliding chute (203) extend along the moving direction of the movable part (24), and two sides of the sliding chute (203) respectively penetrate through the end face of the movable part (24) facing the lower die main body (21) and the first fixing part (22); the lower die (2) further comprises a first fixing part (22) and a support column (25), the first fixing part (22) is arranged on the lower die main body (21) and is arranged at an interval with the lower die main body (21) to form a gap (201), the first fixing part (22) is matched with the upper die (1), a workpiece (3) is arranged between the first fixing part (22) and the upper die (1), a movable part (24) is arranged in the gap (201), and the edge of the opening (31) extends into the gap (201); the pillar (25) is disposed between the first fixing portion (22) and the lower die main body (21) and is located in the slide groove (203).

8. A press die for reshaping a workpiece as defined in claim 7, wherein: still include canceling release mechanical system (4), canceling release mechanical system (4) set up between second fixed part (23) and movable part (24), canceling release mechanical system (4) are used for driving movable part (24) and keep away from second fixed part (23) and reset along spout (203) extending direction.