CN111390026A

CN111390026A - Forming die for large hoop

Info

Publication number: CN111390026A
Application number: CN202010200991.3A
Authority: CN
Inventors: 孙健
Original assignee: Hefei Zhengte Machinery Co ltd
Current assignee: Hefei Zhengte Machinery Co ltd
Priority date: 2020-03-20
Filing date: 2020-03-20
Publication date: 2020-07-10

Abstract

The invention discloses a forming die for a large anchor ear, which relates to the technical field of dies and comprises an upper die and a lower die, wherein the cross section of the upper die is U-shaped, the width of the upper die is gradually increased from top to bottom, the lower die comprises a fixed block, the fixed block is rotatably connected with two L-shaped modules, the two L-shaped modules are oppositely arranged and are matched with the side face of the upper die, the upper die comprises a wedge-shaped block, a pin shaft is fixed on the upper surface of the wedge-shaped block side by side, the upper end of the pin shaft penetrates through an upper backing plate and is sleeved with a spring, the two side faces of the wedge-shaped block are respectively and slidably connected with side modules, a bending block is fixed at the upper end of each side module, and the upper surface of the bending block is slidably connected with the lower surface of the upper backing plate.

Description

Forming die for large hoop

Technical Field

The invention belongs to the technical field of dies, and particularly relates to a forming die for a large hoop.

Background

The anchor ear is a member which is made of one material and is used for holding or hooping another material, belongs to a fastener and has wide application in industry. The curved shape of staple bolt circular arc mainly passes through the mould decision, and the product quality of the staple bolt that the moulding-die came out is directly influenced to the design specification of staple bolt moulding-die mould and the material of selecting for use. The existing anchor ear is mostly semicircular, an anchor ear pressing die usually adopts a lower die and an upper die which correspond to radian, and the flat iron is bent into a required shape by mutually punching the upper die and the lower die.

However, some existing hoops with special shapes, such as U-shaped hoops with opening gaps smaller than the width, can be clamped on an upper die after being punched and formed, and need to be manually taken down, so that the production efficiency is low. Meanwhile, the common lower die can only complete normal circular arc or an anchor ear with an opening width equal to the whole width of the U-shaped anchor ear, and the common lower die can not complete the anchor ear with a specific structure under the condition that the opening width is smaller than the width of the anchor ear, so that subsequent reprocessing is needed, the adaptability of the lower die is lower, and the production efficiency is seriously influenced.

Disclosure of Invention

The invention aims to provide a forming die for a large hoop, which solves the problems of low adaptability and low production efficiency of the existing lower die by arranging two L-shaped modules, pressing down an upper die and utilizing the rotation of a L-shaped module to extrude the side face of the hoop, and solves the problems of low production efficiency caused by the fact that the existing hoop needs to be manually taken down after being formed by arranging the upper die into a wedge-shaped block and two side modules.

In order to solve the technical problems, the invention is realized by the following technical scheme:

the invention relates to a forming die for a large hoop, which comprises an upper die and a lower die; the cross section of the upper die is U-shaped, and the width of the upper die is gradually increased from top to bottom; the upper surface of the upper die is connected with an upper base plate; the upper surface of the upper backing plate is connected with a telescopic device;

the lower die comprises a fixed block, the upper surface of the fixed block is provided with a rectangular notch, the rectangular notch is rotatably connected with two L-shaped modules, the two L-shaped modules are oppositely arranged, each L-shaped module comprises a side pressing block, and the lower end of the side pressing block is rotatably connected with the inner wall of the rectangular notch;

the side face of the lower end of the side pressing block is fixedly connected with a cushion block; the side pressing block is matched with the side face of the upper die, and the upper surface of the cushion block is matched with the lower surface of the upper die.

Further, the upper die comprises a wedge-shaped block; the wedge-shaped block is of an isosceles trapezoid structure, and the lower surface of the wedge-shaped block is a curved surface; the upper surfaces of the wedge-shaped blocks are fixedly connected with pin shafts side by side; the upper end of the pin shaft penetrates through the upper base plate; the pin shaft is sleeved with a spring, and the lower end of the spring is abutted against the upper surface of the upper backing plate;

two side surfaces of the wedge-shaped block are connected with side modules in a sliding manner; the upper end of the side module is fixedly connected with a bending block; the upper surface of the bending block is connected with the lower surface of the upper backing plate in a sliding mode.

Furthermore, the telescopic device is fixedly installed through the installation plate, and the telescopic end of the telescopic device is connected with the upper surface of the upper padding plate.

Furthermore, the upper surface of the fixing block is fixedly connected with a limiting plate through a plurality of supporting rods, a limiting notch is formed in the surface of the limiting plate, the limiting notch is in clearance fit with the L-shaped module, the lower surface of the limiting plate is lower than the upper surface of the L-shaped module, and the upper surface of the limiting plate is higher than the upper surface of the L-shaped module.

The invention has the following beneficial effects:

1. according to the invention, the lower die is arranged into two L-shaped module structures which are oppositely arranged, and when the upper die is pressed down, the L-shaped module rotates to extrude the side face of the hoop, so that the opening width of the U-shaped hoop is smaller than the width of the bottom of the hoop, the condition that secondary processing is needed is avoided, and the production efficiency is effectively improved.

2. According to the invention, the upper die is set to be the wedge-shaped block, the side modules are connected with the two sides of the wedge-shaped block in a sliding manner, and the wedge-shaped block moves downwards, so that the distance between the side templates at the two sides is reduced, the integral width of the upper die is reduced, and the anchor ear can automatically fall down; meanwhile, the wedge block can also push the anchor ear downwards when moving downwards, so that the anchor ear can be further ensured to be automatically taken down from the upper die, the condition that manual operation is needed is avoided, and the integral production efficiency is favorably improved.

Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.

Drawings

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

Fig. 1 is a schematic structural diagram of a forming mold for a large hoop according to the present invention;

FIG. 2 is a schematic structural view of a lower die;

FIG. 3 is a half sectional view of FIG. 2;

FIG. 4 is a schematic structural view of an L-shaped module;

FIG. 5 is a schematic structural view of an upper mold;

FIG. 6 is a schematic structural view of a wedge-shaped block;

FIG. 7 is a schematic structural view of a side module;

FIG. 8 is a schematic structural diagram of an embodiment of the present invention;

in the drawings, the components represented by the respective reference numerals are listed below:

1-upper die, 2-lower die, 3-telescoping device, 4-L-shaped module, 11-upper backing plate, 101-wedge block, 102-side module, 103-bending block, 104-pin shaft, 105-spring, 201-fixing block, 202-rectangular notch, 203-limiting plate, 204-limiting notch, 301-mounting plate, 401-side pressing block and 402-cushion block.

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.

In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.

Example one

Referring to fig. 1, the present invention is a forming mold for a large hoop, including an upper mold 1 and a lower mold 2; go up mould 1 and be the U-shaped in the cross sectional shape of vertical direction, and go up mould 1 from top to bottom width increase gradually for staple bolt after the punching press forms U-shaped structure, and staple bolt open-ended width is less than the holistic width of staple bolt.

As shown in fig. 5, the surface of the upper die 1 is rounded, and the upper surface of the upper die 1 is connected with an upper backing plate 11; the upper surface of the upper backing plate 11 is connected with a telescopic device 3.

The telescoping device 3 can be cylinder or pneumatic cylinder, and the telescoping device 3 can set up two, and two telescoping devices 3 pass through mounting panel 301 installation fixed, sets up the through-hole on the mounting panel 301, and the flexible end of telescoping device 3 passes the through-hole and is connected with upper surface mounting of upper padding plate 101, realizes going up 1's of mould lift action.

As shown in FIGS. 2-4, the lower die 2 comprises a fixed block 201, a rectangular notch 202 is formed in the upper surface of the fixed block 201, an inner side wall part of the rectangular notch 202 is rotatably connected with two L-shaped modules 4, the two L-shaped modules 4 are oppositely arranged, the L-shaped module 4 comprises a side pressing block 401, a through hole is formed in the lower end of the side pressing block 401 and is rotatably connected with the inner wall of the rectangular notch 202 through a pin shaft, a cushion block 402 is welded to the side surface of the lower end of the side pressing block 401, the side pressing block 401 is matched with the side surface of the upper die 1, the upper surface of the cushion block 402 is matched with the lower surface of the upper die 1, the side pressing block 401 and the cushion block 402 can be of an integrated structure, and.

The upper surface of the fixed block 201 is fixedly connected with a limiting plate 203 through four supporting rods, the surface of the limiting plate 203 is provided with a limiting notch 204, and the limiting notch 204 is in clearance fit with the L-shaped module 4;

limiting plate 203 lower surface is less than L shape module 4 upper surface, and limiting plate 203 upper surface is higher than L shape module 4 upper surface for L shape module 4 upper surface is located spacing notch 204, and the band iron is put at the upper surface of two L shape modules 4, and carries out the position through spacing notch 204 and spacing, avoids the band iron position excursion to appear, influences the machining precision of staple bolt.

As shown in fig. 1, the upper die 1 presses the flat iron downwards, when the lower press contacts two opposite cushion blocks 402, under the action of the upper die 1 pressing downwards, the cushion blocks 402 are pressed downwards, the cushion blocks 402 drive the side press blocks 401 to rotate, so that the side press blocks 401 extrude the flat iron towards the surface of the upper die 1, after the lower surfaces of the cushion blocks 402 abut against the inner bottom surface of the rectangular notch 202, the side press blocks 401 extrude the flat iron to be completely attached to the side surface of the upper die 1, thereby completing the processing of the hoop, and making the opening width of the hoop smaller than the whole width of the hoop, so as to form a water drop-shaped structure.

The side of the upper die 1 is also provided with a bulge for matching with the upper surface of the side pressure block 401 to bend the two ends of the flat iron, so that the hoop forms a connecting lug structure for bolt connection.

After the hoop punching is completed, the upper die 1 rises to directly extrude the press blocks 401 at two sides, and the hoop is taken out of the lower die 2 by the upper die 1.

A spring can be connected between the two side pressing blocks 401 and the fixing block 201, so that the two side pressing blocks 401 are kept away, the two cushion blocks 402 are kept in an upturned state, and the situation that the side pressing blocks 401 interfere with the upper die 1 when the upper die 1 is pressed downwards is avoided.

Example two

As shown in fig. 5-7, the upper die 1 includes a wedge block 101; the wedge block 101 is in an isosceles trapezoid structure, and the lower surface of the wedge block 101 is a curved surface; the upper surfaces of the wedge blocks 101 are welded or in threaded connection with pin shafts 104 side by side; the upper end of the pin shaft 104 penetrates through the upper backing plate 11; the pin 104 is sleeved with a spring 105, the lower end of the spring 105 abuts against the upper surface of the upper backing plate 11, and the upper surface of the wedge block 101 is kept abutting against the lower surface of the upper backing plate 11 under the action of the spring 105.

Two side surfaces of the wedge block 101 are both connected with side modules 102 in a sliding manner; dovetail grooves can be formed in the side faces of the wedge blocks 101, dovetail blocks matched with the dovetail grooves are fixed on the side die blocks 102, and sliding connection between the wedge blocks 101 and the side die blocks 102 is achieved.

The upper end of the side module 102 is welded with a bending block 103, and the side module 102 and the bending block 103 can also be of an integrated structure; the upper surface of the bending block 103 is slidably connected with the lower surface of the upper backing plate 11, specifically, a dovetail groove or a T-shaped groove can be formed in the lower surface of the upper backing plate 11, and the upper surface of the bending block 103 is welded or screwed with a dovetail block or a T-shaped block matched with the bending block, so that the side module 102 and the bending block 103 can slide in the horizontal direction.

As shown in fig. 8, after the punching is completed, the anchor ear is clamped on the upper die 1, that is, clamped on the side modules 102 on both sides, the telescopic device 3 drives the upper padding plate 11 to ascend, and after the top end of the pin 104 abuts against the lower surface of the mounting plate 301 and continues to ascend, the pin 104 is blocked, so that the wedge 101 keeps unchanged in position; at this moment, two side modules 102 continue to rise under the drive of upper padding plate 11, and under the effect of wedge 101, the side module 102 of both sides produces the removal that is close to each other, thereby make the whole width of going up mould 1 diminish, make the staple bolt can fall by oneself, and simultaneously, under the effect of wedge 101, when side module 102 drives the staple bolt rebound, thereby receive blockking of wedge 101 and ensure that the staple bolt can fall from last mould 1, thereby realize the purpose of getting the piece automatically, the process that the staple bolt was taken off from last mould 1 to the people's manual work of needs has been reduced, thereby great improvement production efficiency.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a forming die for big staple bolt which characterized in that: comprises an upper die (1) and a lower die (2); the cross section of the upper die (1) is U-shaped, and the width of the upper die (1) is gradually increased from top to bottom; the upper surface of the upper die (1) is connected with an upper cushion plate (11); the upper surface of the upper backing plate (11) is connected with a telescopic device (3);

the lower die (2) comprises a fixed block (201), a rectangular notch (202) is formed in the upper surface of the fixed block (201), and the rectangular notch (202) is rotatably connected with two L-shaped modules (4);

the two L-shaped modules (4) are oppositely arranged, the L-shaped module (4) comprises a side pressing block (401), and the lower end of the side pressing block (401) is rotatably connected with the inner wall of the rectangular notch (202);

the side surface of the lower end of the side pressing block (401) is fixedly connected with a cushion block (402); the side pressing block (401) is matched with the side face of the upper die (1), and the upper surface of the cushion block (402) is matched with the lower surface of the upper die (1).

2. The forming die for large hoops according to claim 1, wherein the upper die (1) comprises a wedge-shaped block (101); the wedge block (101) is of an isosceles trapezoid structure, and the lower surface of the wedge block (101) is a curved surface; the upper surfaces of the wedge blocks (101) are fixedly connected with pin shafts (104) side by side; the upper end of the pin shaft (104) penetrates through the upper backing plate (11); the pin shaft (104) is sleeved with a spring (105), and the lower end of the spring (105) is abutted against the upper surface of the upper backing plate (11);

two side surfaces of the wedge-shaped block (101) are connected with side modules (102) in a sliding manner; the upper end of the side module (102) is fixedly connected with a bending block (103); the upper surface of the bending block (103) is connected with the lower surface of the upper backing plate (11) in a sliding manner.

3. The forming die for the large hoop as claimed in claim 2, wherein the telescopic device (3) is fixedly installed through the installation plate (301), and the telescopic end of the telescopic device (3) is connected with the upper surface of the upper backing plate (101).

4. The forming die for the large hoop as claimed in claim 1 or 3, wherein a limiting plate (203) is fixedly connected to the upper surface of the fixing block (201) through a plurality of supporting rods, a limiting notch (204) is formed in the surface of the limiting plate (203), and the limiting notch (204) is in clearance fit with the L-shaped module (4);

the lower surface of the limiting plate (203) is lower than the upper surface of the L-shaped module (4), and the upper surface of the limiting plate (203) is higher than the upper surface of the L-shaped module (4).