CN217595672U

CN217595672U - Backup pad turn-ups forming die

Info

Publication number: CN217595672U
Application number: CN202221658727.5U
Authority: CN
Inventors: 胡满江; 边有钢; 秦洪懋; 朱颖; 邓凡; 钟艺
Original assignee: Hunan University
Current assignee: Hunan University
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2022-10-18
Anticipated expiration: 2032-06-30

Abstract

The utility model discloses a backup pad turn-ups forming die, including bottom plate, bounding wall, die holder and side form seat, the die holder with the side form seat cooperation encloses the die cavity, the side form seat is including the orientation the internal surface of die cavity, the internal surface to protruding being formed with mould benevolence in the die cavity, mould benevolence includes side and top surface, the top surface is connected the internal surface with the side, the top surface with the contained angle of side is 95-110, just the top surface with the hookup location smooth transition of side is used for punching press lateral part turn-ups, the die holder includes the upper surface, upper surface undercut is formed with a plurality of heavy grooves, the groove wall face of heavy groove with the contained angle of upper surface is 95-110, the groove wall face of heavy groove with the hookup location smooth transition of upper surface for punching press bottom turn-ups. The utility model discloses can one time the punching press form U-shaped backup pad and turn-ups, reduction in production cost.

Description

Flanging forming die for supporting plate

[ technical field ] A method for producing a semiconductor device

The utility model relates to an automobile manufacturing technical field especially relates to a backup pad turn-ups forming die.

[ background ] A method for producing a semiconductor device

In automotive construction, there are many U-shaped support plates. In order to increase the strength of the edges of the support plate, it is common practice to turn the edges of the support plate over.

In the related technology, the manufacturing process of the support plate is to firstly form a U-shaped support plate through one-time stamping, and then carry out secondary processing through a bending device to form a flanging. Two sets of processes need two sets of equipment for matching, the number of the required equipment is large, and the production cost is high. Therefore, it is necessary to provide a flanging forming die for a support plate to solve the above problems.

[ Utility model ] content

The utility model discloses a backup pad turn-ups forming die can one-time punching press form U-shaped backup pad and turn-ups, reduction in production cost.

In order to achieve the above purpose, the technical scheme of the utility model is that:

a support plate flanging forming die comprises a bottom plate, a surrounding plate, a bottom die holder and two side die holders, wherein the surrounding plate is connected with the bottom plate and matched with the bottom plate to form an accommodating space, mounting holes are formed in the bottom plate in a penetrating mode, the mounting holes are communicated with the accommodating space and the lower space of the bottom plate, the top of the bottom die holder is accommodated in the accommodating space, the bottom of the bottom die holder penetrates through the mounting holes to be exposed below the bottom plate, the side die holders are fixed above the bottom plate and accommodated in the accommodating space, the bottom die holder and the side die holders are matched to define a forming cavity, the number of the side die holders is two, the two side die holders are arranged at intervals, each side die holder comprises an inner surface facing towards the corresponding cavity, each inner surface protrudes towards the corresponding cavity to form a die core, each die core comprises a side surface and a top surface, the top surface is connected with the inner surface and the side surface, the top surface is at an included angle of 95-110 degrees, and the connection positions of the top surface and the side surfaces are in smooth transition; the bottom die base comprises an upper surface, a plurality of sinking grooves are formed in the upper surface in a downward concave mode, the included angle between the wall surface of each sinking groove and the upper surface ranges from 95 degrees to 110 degrees, and the connecting positions of the wall surface of each sinking groove and the upper surface are in smooth transition.

Preferably, the side die holder is detachably connected with the enclosing plate, and the enclosing plate is detachably connected with the bottom plate.

Preferably, the number of the die cores on each side die base is two, and after the two side die bases are installed, the die cores on different side die plates are arranged oppositely.

Preferably, the enclosing plate comprises two long walls arranged in parallel at intervals and two short walls arranged at two ends of the long walls and connected with the two long walls, and the long walls and the short walls are sequentially connected end to form a rectangular annular structure; the short wall is sunken towards the direction far away from the cavity to form an exhaust groove avoiding the U-shaped supporting plate, the exhaust groove is communicated with the cavity, and the exhaust groove extends to the bottom of the enclosing plate from the top of the enclosing plate in a straight line mode.

Preferably, the two side die holders have the same structure and are symmetrically arranged about a connecting line of central points of the two short walls.

Compared with the prior art, the utility model provides a support plate flanging forming die, a cavity is used for punching to form a support plate, a side die seat is protruded to form a die core, the included angle between the top surface of the die core and the side surface is 95-110 degrees, and the connecting position of the top surface and the side surface is in smooth transition and is used for punching the flanging of the side part of the support plate; the bottom die base comprises an upper surface, a plurality of sinking grooves are formed in the upper surface in a downward sunken mode, the included angle between the groove wall surface of each sinking groove and the upper surface ranges from 95 degrees to 110 degrees, and the connection positions of the groove wall surface of each sinking groove and the upper surface are in smooth transition and used for stamping bottom flanging of the supporting plate. The utility model provides a turn-ups forming die can once with backup pad and turn-ups stamping forming, need not dispose two sets of equipment, can control manufacturing cost, improves production efficiency.

[ description of the drawings ]

In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

fig. 1 is a schematic perspective view of a support plate flanging forming die provided by the present invention;

FIG. 2 is an exploded view of the support plate flanging die shown in FIG. 1;

fig. 3 is a sectional view of a support plate burring forming die shown in fig. 1.

[ detailed description ] embodiments

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a support plate flanging forming mold 100, which includes a bottom plate 10, a surrounding plate 20, a bottom mold base 30 and a side mold base 40.

The bottom plate 10 is a flat plate structure, and the enclosing plate 20 is connected with the bottom plate 10 and is matched with the bottom plate to enclose an accommodating space. The bottom plate 10 is provided with a mounting hole 11 in a penetrating manner, and the mounting hole 11 is communicated with the accommodating space and the space below the bottom plate 10. The top of the bottom die holder 30 is accommodated in the accommodating space, and the bottom of the bottom die holder passes through the mounting hole 11 and is exposed below the bottom plate 10. The side die holder 40 is fixed above the bottom plate 10 and is accommodated in the accommodating space. The bottom die holder 30 and the side die holder 40 are matched to enclose a die cavity. The die cavity is used for punch forming of the U-shaped supporting plate 200, and it should be noted that in the punching process, the punching die further comprises a male die and a driving device, the shape of the male die is matched with that of the die cavity, the driving device drives the male die to move towards the die cavity, and the material extruding plate forms the U-shaped supporting plate 200.

The enclosing plate 20 comprises two long walls 21 arranged in parallel at intervals and two short walls 22 arranged at two ends of the long walls 21 and connected with the long walls 21, and the long walls 21 and the short walls 22 are sequentially connected end to form a rectangular annular structure. The short wall 22 is recessed towards the direction away from the cavity to form an exhaust groove 220 avoiding the U-shaped support plate, the exhaust groove 220 is communicated with the cavity 25, and the exhaust groove 220 extends from the top of the coaming 20 to the bottom of the coaming 20. The exhaust groove 220 is used for exhausting in the stamping process, and air below the U-shaped support plate is exhausted through the exhaust groove 220 in the stamping process, so that the influence of air resistance on the forming effect of the U-shaped support plate is avoided.

The number of the side die holders 40 is two, and the two side die holders 40 have the same structure and are symmetrically arranged about a connecting line of the central points of the two short walls 22.

The side die holder 40 includes an inner surface 41 facing the cavity, and the inner surface 41 protrudes into the cavity to form a die core 42. Specifically, the mold insert 42 includes a side surface 421 and a top surface 422, the top surface 422 connects the inner surface 41 and the side surface 421, an included angle between the top surface 422 and the side surface 421 is 95 ° -110 °, and a connecting position of the top surface 422 and the side surface 421 is in smooth transition to be used as a fold of the side flanging of the U-shaped support plate, after punching, the side flanging abuts against the top surface 422, so that the fold position of the side flanging is in smooth transition, and concentration of stress can be avoided.

The number of the die inserts 42 is at least one. In this embodiment, the number of the mold cores 42 on each side mold base 40 is two. After the two side die holders 40 are installed, the die cores 42 on the different side die plates 40 are arranged oppositely.

The bottom die holder 30 comprises an upper surface 31, the upper surface 31 is recessed downwards to form a plurality of sinking grooves 310, the included angle between the groove wall surface of each sinking groove 310 and the upper surface 31 ranges from 95 degrees to 110 degrees, the connecting positions of the groove wall surface of each sinking groove 310 and the upper surface 31 are in smooth transition and are used as creases of bottom flanging of the U-shaped supporting plate, after stamping, the bottom flanging abuts against the groove wall surface of each sinking groove 310, the crease positions of the bottom flanging are in smooth transition, and stress concentration can be avoided.

Referring to fig. 2, the u-shaped supporting plate 200 is directly punched in the cavity, and the punching process is implemented by the cooperation of the male mold and the cavity; meanwhile, the top surface of the mold core is used for stamping to form the flanging 220 at the side part, and the groove wall surface of the sinking groove is used for stamping to form the flanging 210 at the bottom part, so that the U-shaped supporting plate and the flanging can be stamped in place at one time, the process is shortened to be half of the original process, the production efficiency is greatly improved, one set of equipment can be omitted, and the production cost is controlled.

While the embodiments of the invention have been disclosed above, it is not limited to the applications set forth in the description and embodiments, but is capable of being applied in all kinds of fields adapted to the invention, and further modifications may readily be made by those skilled in the art, and the invention is therefore not limited to the details shown and described herein, without departing from the general concept defined by the claims and their equivalents.

Claims

1. A support plate flanging forming die is characterized by comprising a bottom plate, a surrounding plate, a bottom die holder and side die holders, wherein the surrounding plate is connected with the bottom plate and matched with the bottom plate to form an accommodating space, an installing hole penetrates through the bottom plate and is communicated with the accommodating space and the space below the bottom plate, the top of the bottom die holder is accommodated in the accommodating space, the bottom of the bottom die holder penetrates through the installing hole and is exposed below the bottom plate, the side die holders are fixed above the bottom plate and accommodated in the accommodating space, the bottom die holder and the side die holders are matched to form a forming cavity, the number of the side die holders is two, the two side die holders are arranged at intervals, each side die holder comprises an inner surface facing the forming cavity, the inner surface protrudes towards the inside of the forming cavity to form a die core, each die core comprises a side surface and a top surface, the top surface is connected with the inner surface and the side surface, the included angle between the top surface and the side surface is 95-110 degrees, and the connecting position between the top surface and the side surface is in smooth transition; the bottom die base comprises an upper surface, a plurality of sinking grooves are formed in the upper surface in a downward concave mode, the included angle between the wall surface of each sinking groove and the upper surface ranges from 95 degrees to 110 degrees, and the connecting positions of the wall surface of each sinking groove and the upper surface are in smooth transition.

2. The support plate flanging molding die of claim 1, wherein the side die holder is detachably connected with the coaming, and the coaming is detachably connected with the bottom plate.

3. The supporting plate flanging forming die of claim 2, wherein the number of the die cores on each side die base is two, and after the two side die bases are installed, the die cores on different side die plates are arranged oppositely.

4. The support plate flanging forming die of claim 1, wherein the enclosing plate comprises two long walls arranged in parallel at intervals and two short walls arranged at two ends of the long walls and connected with the two long walls, and the long walls and the short walls are sequentially connected end to form a rectangular annular structure; the short wall is sunken towards the direction far away from the cavity to form an exhaust groove avoiding the U-shaped supporting plate, the exhaust groove is communicated with the cavity, and the exhaust groove extends to the bottom of the enclosing plate from the top of the enclosing plate in a straight line mode.

5. The support plate flanging forming die of claim 4, wherein the two side die holders have the same structure and are symmetrically arranged about a connecting line of center points of the two short walls.