CN212598289U

CN212598289U - Stamping die

Info

Publication number: CN212598289U
Application number: CN202021357461.1U
Authority: CN
Inventors: 胡自喜; 张海林; 汤骏成
Original assignee: Xinyu Xinao Metal Products Co ltd
Current assignee: Xinyu Xinao Metal Products Co ltd
Priority date: 2020-07-10
Filing date: 2020-07-10
Publication date: 2021-02-26
Anticipated expiration: 2030-07-10

Abstract

The utility model discloses a stamping die, which relates to the technical field of stamping equipment and comprises an upper stamping die, a lower stamping die and a base, wherein a first anti-corrosion wear-resistant layer is arranged between the upper stamping die and a die shank, and a second anti-corrosion wear-resistant layer is arranged between the lower stamping die and a punched hole; the bottom fixedly connected with support column of backup pad, the bottom fixedly connected with damping spring of stopper, the bottom fixed mounting of backup pad has air spring, and the dashpot has been seted up to the inside of base. Through setting up buffer layer, first wearing layer, second wearing layer, first anticorrosive wearing layer and the anticorrosive wearing layer of second have strengthened stamping die resistance to wear and corrosion resistance, cushion the backup pad that lies in stamping die below down through air spring simultaneously to reduce its pressure that receives, the dead lever downstream simultaneously makes it extrude two movable blocks, promotes the movable block extrusion dead lever through the tensioning spring this moment, thereby cushions the dead lever, and then cushions the backup pad.

Description

Stamping die

Technical Field

The utility model relates to a stamping equipment technical field, concretely relates to stamping die.

Background

The stamping die is a special process equipment for processing materials (metal or nonmetal) into parts (or semi-finished products) in cold stamping, and is called cold stamping die (commonly called cold stamping die). Stamping is a press working method in which a die mounted on a press is used to apply pressure to a material at room temperature to cause separation or plastic deformation of the material, thereby obtaining a desired part. Some existing stamping dies are worn or seriously corroded after being used for a period of time, so that the processing quality of workpieces is affected; in addition, the stamping die can bear larger pressure when in use, and the existing stamping die does not have a damping function or has a poor damping function, so that the stamping die or a workpiece is easily crushed in the use process, and the service life of the stamping die is shortened.

Disclosure of Invention

For solving the prior art problem, the utility model discloses a set up the buffer layer, first wearing layer, the second wearing layer, first anticorrosive wearing layer and the anticorrosive wearing layer of second have strengthened stamping die resistance to wear and corrosion resistance in the use, cushion the backup pad that lies in stamping die below down through air spring simultaneously, thereby reduce the pressure that it received, the dead lever downstream simultaneously, make two movable blocks of its extrusion, promote the movable block extrusion dead lever through the tensioning spring this moment, thereby cushion the dead lever, and then cushion the backup pad, reduce the impact force that stamping die received down, strengthen stamping die's shock attenuation performance, prolong its life.

The utility model discloses specifically adopt following technical scheme:

a stamping die comprises an upper stamping die, a lower stamping die and a base located below the lower stamping die, wherein a die handle is arranged in the middle of the upper stamping die, a first anti-corrosion wear-resistant layer is arranged between the upper stamping die and the die handle, the lower end of the die handle is fixedly connected with a punch fixing plate, the middle of the bottom surface of the punch fixing plate is fixedly connected with one end of a connecting rod, and a punch is arranged at the other end of the connecting rod; the lower end face of the punch fixing plate is fixedly bonded with the buffer layer; a punching hole is formed in the middle of the lower stamping die, the punching position corresponds to the punch, and a second anti-corrosion wear-resistant layer is arranged between the lower stamping die and the punching hole;

a supporting plate is arranged above the base, the lower stamping die is fixedly arranged on the upper end face of the supporting plate, supporting columns are fixedly connected to four corners of the bottom of the supporting plate, a groove corresponding to the supporting columns is formed in the upper end face of the base, a limiting block is connected to the inside of the groove in a sliding mode, the lower end of each supporting column extends into the groove and is fixedly connected with the top of the limiting block, a damping spring is fixedly connected to the bottom of the limiting block, and the lower end of the damping spring is fixedly connected with the inner bottom wall of the groove;

an air spring is fixedly installed at the bottom of the supporting plate, and the lower end of the air spring is fixedly connected with the top of the base;

the utility model discloses a buffer structure, including the bottom surface of backup pad, the bottom surface middle part fixedly connected with dead lever, the dashpot has been seted up to the inside of base, the inside both sides of dashpot all are provided with the movable block, two the equal fixed mounting in one side that the movable block kept away from each other has the tensioning spring, the tensioning spring is kept away from the one end of movable block with the inside wall fixed connection of dashpot, the bottom of dead lever extends to the inside of dashpot and with two the movable block contact.

The lower end face of the upper stamping die is bonded with the first wear-resistant layer, the upper end face of the lower stamping die is bonded with the second wear-resistant layer, and the first wear-resistant layer and the second wear-resistant layer are hard alloy steel wear-resistant layers.

The further scheme is that a limiting groove is formed in the inner bottom wall of the buffer groove and corresponds to the fixing rod.

The further scheme is that a first reinforcing plate is fixedly mounted at the bottom of the fixing rod, and a second reinforcing plate is fixedly mounted on one side, close to each other, of the movable block.

The further scheme is that a cushion pad is fixedly arranged at the bottom of the lower stamping die, and the bottom of the cushion pad is fixedly connected with the top of the supporting plate.

The punch is characterized in that one end, close to the punch, of the connecting rod is provided with an internal thread, one end, far away from the head, of the punch is provided with an external thread, and the connecting rod is in threaded connection with the punch.

The utility model discloses compare the beneficial effect who has in prior art:

the buffer layer, the first wear-resistant layer, the second wear-resistant layer, the first anti-corrosion wear-resistant layer and the second anti-corrosion wear-resistant layer are arranged, so that the abrasion resistance and the corrosion resistance of the stamping die in the use process are enhanced, and the service life of the stamping die is prolonged;

the supporting plate below the lower stamping die is buffered through the air spring, so that the pressure applied to the supporting plate is reduced, meanwhile, the fixed rod moves downwards to extrude the two movable blocks, the movable blocks are pushed by the tensioning spring to extrude the fixed rod, so that the fixed rod is buffered, the supporting plate is buffered, the impact force applied to the lower stamping die is reduced, the damping performance of the stamping die is enhanced, and the service life of the stamping die is prolonged;

through making drift and connecting rod threaded connection for the drift is convenient with the connecting rod dismouting, is convenient for change the drift, promotes the punching press suitability of mould.

Drawings

Fig. 1 is a schematic structural view of a stamping die according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a punch in an embodiment of the present invention;

the attached drawings are marked as follows: 1-upper stamping die; 10-a die shank; 11-a first anti-corrosive wear-resistant layer; 12-a punch fixing plate; 13-a connecting rod; 14-a punch; 140-external threads; 15-a buffer layer; 2-lower stamping die; 20-punching; 21-a second anti-corrosion wear-resistant layer; 3-a base; 30-a groove; 31-a limiting block; 32-a damping spring; 33-a buffer tank; 330-active block; 331-a tension spring; 332-a limit groove; 4-a support plate; 40-a support column; 42-air spring; 43-a fixation bar; 50-a first stiffener; 51-a second stiffener; 60-a first wear layer; 61-a second wear layer; 7-buffer pad.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1-2, an embodiment of the present invention discloses a stamping die, which includes an upper stamping die 1, a lower stamping die 2, and a base 3 located below the lower stamping die 2, wherein a die shank 10 is disposed in the middle of the upper stamping die 1, a first anti-corrosion wear-resistant layer 11 is disposed between the upper stamping die 1 and the die shank 10, the lower end of the die shank 10 is fixedly connected to a punch fixing plate 12, the middle portion of the bottom surface of the punch fixing plate 12 is fixedly connected to one end of a connecting rod 13, and a punch 14 is disposed at the other end of the connecting rod 13; the lower end face of the punch fixing plate 12 is fixedly bonded with the buffer layer 15; a punching hole 20 is arranged in the middle of the lower punching die 2, the position of the punching hole 20 corresponds to that of the punch 14, and a second anti-corrosion wear-resistant layer 21 is arranged between the lower punching die 2 and the punching hole 20; the lower end face of the upper stamping die 1 is bonded with the first wear-resistant layer 60, the upper end face of the lower stamping die 2 is bonded with the second wear-resistant layer 61, and the first wear-resistant layer 60 and the second wear-resistant layer 61 are both hard alloy steel wear-resistant layers; a supporting plate 4 is arranged above the base 3, the lower stamping die 2 is fixedly arranged on the upper end face of the supporting plate 4, four corners of the bottom of the supporting plate 4 are fixedly connected with supporting columns 40, the upper end face of the base 3 is provided with a groove 30 corresponding to the supporting columns 40, a limiting block 31 is connected inside the groove 30 in a sliding mode, the lower end of each supporting column 40 extends into the groove 30 and is fixedly connected with the top of the limiting block 31, the bottom of each limiting block 31 is fixedly connected with a damping spring 32, and the lower end of each damping spring 32 is fixedly connected with the inner bottom wall of the groove 30; an air spring 42 is fixedly arranged at the bottom of the supporting plate 4, and the lower end of the air spring 42 is fixedly connected with the top of the base 3; bottom surface middle part fixedly connected with dead lever 43 of backup pad 4, buffer slot 33 has been seted up to base 3's inside, the inside both sides of buffer slot 33 all are provided with movable block 330, the equal fixed mounting in one side that two movable blocks 330 kept away from each other has tensioning spring 331, the one end that movable block 330 was kept away from to tensioning spring 331 and buffer slot 33's inside wall fixed connection, the bottom of dead lever 43 extend to the inside of buffer slot 33 and contact with two movable blocks 330.

When the punching die is used, firstly, the punch 14 suitable for punching is installed according to the punching requirement, the die is integrally installed on the power device, a workpiece to be punched is fixed between the first wear-resistant layer 60 and the second wear-resistant layer 61, the upper punching die 1 moves downwards through the power device, and then the punch fixing plate 12 continues to move downwards to punch the workpiece. The buffer layer 15, the first wear-resistant layer 60, the second wear-resistant layer 61, the first anti-corrosion wear-resistant layer 11 and the second anti-corrosion wear-resistant layer 21 are arranged, so that the abrasion resistance and the corrosion resistance of the stamping die in the using process are enhanced, and the service life of the stamping die is prolonged. When the workpiece is punched by the punching die, the pressure applied to the lower punching die 2 acts downwards on the supporting plate 4, and then cushioned by the air springs 42, thereby reducing the pressure to which the support plate 4 is subjected, meanwhile, the fixed rod 43 under the supporting plate 4 is pressed and moved downward, so that it presses the two movable blocks 330, at this time, the movable blocks 330 are pushed by the tension spring 331 to press the fixed rod 43, thereby buffering the fixing rod 43 and further buffering the supporting plate 4, reducing the impact force applied to the lower stamping die 2, prolonging the service life of the lower stamping die, after the stamping is finished, the fixed lever 43 is pressed by the tension spring 331 and the movable block 330 to move the fixed lever upward, meanwhile, the support plate 4 is pushed upwards through the damping spring 32, the support column 40 and the air spring 42, so that the support plate is reset, the lower stamping die is damped, and the damping effect is good.

In this embodiment, the inner bottom wall of the buffer slot 33 is formed with a limiting slot 332, and the limiting slot 332 corresponds to the fixing rod 43. Avoid the bottom of dead lever to cause great impact to the interior diapire of dashpot through setting up the spacing groove, lead to its damage.

In this embodiment, the first reinforcing plate 50 is fixedly mounted at the bottom of the fixing rod 43, and the second reinforcing plate 51 is fixedly mounted at the side where the two movable blocks 330 are close to each other. Through setting up first reinforcing plate and second reinforcing plate, can realize carrying out structural strength's enhancement to dead lever and movable block respectively, avoid its long-time direct collision friction and cause the damage.

In the embodiment, a cushion pad 7 is fixedly arranged at the bottom of the lower stamping die 2, and the bottom of the cushion pad 7 is fixedly connected with the top of the support plate 4. The lower stamping die is further buffered by arranging the buffer pad, so that the impact force applied to the lower stamping die is reduced.

In the embodiment, one end of the connecting rod 13 close to the punch 14 is provided with an internal thread, one end of the punch 14 far away from the head is provided with an external thread 140, and the connecting rod 13 is in threaded connection with the punch 14. The punch is convenient to replace by enabling the punch to be in threaded connection with the connecting rod.

Finally, only the specific embodiments of the present invention have been described in detail. The invention is not limited to the specific embodiments described above. Equivalent modifications and substitutions by those skilled in the art to the present invention are also within the scope of the present invention. Accordingly, variations and modifications in equivalents may be made without departing from the spirit and scope of the invention, which is intended to be covered by the following claims.

Claims

1. A stamping die, includes upper stamping die (1), lower stamping die (2) and is located base (3) of lower stamping die (2) below, its characterized in that:

a die handle (10) is arranged in the middle of the upper stamping die (1), a first anticorrosion wear-resistant layer (11) is arranged between the upper stamping die (1) and the die handle (10), the lower end of the die handle (10) is fixedly connected with a punch fixing plate (12), the middle of the bottom surface of the punch fixing plate (12) is fixedly connected with one end of a connecting rod (13), and a punch (14) is arranged at the other end of the connecting rod (13); the lower end face of the punch fixing plate (12) is fixedly bonded with the buffer layer (15); a punched hole (20) is formed in the middle of the lower stamping die (2), the position of the punched hole (20) corresponds to that of the punch (14), and a second anticorrosive wear-resistant layer (21) is arranged between the lower stamping die (2) and the punched hole (20);

a supporting plate (4) is arranged above the base (3), the lower stamping die (2) is fixedly arranged on the upper end face of the supporting plate (4), supporting columns (40) are fixedly connected to four corners of the bottom of the supporting plate (4), a groove (30) corresponding to the supporting columns (40) is formed in the upper end face of the base (3), a limiting block (31) is connected to the inside of the groove (30) in a sliding mode, the lower end of the supporting column (40) extends into the groove (30) and is fixedly connected with the top of the limiting block (31), a damping spring (32) is fixedly connected to the bottom of the limiting block (31), and the lower end of the damping spring (32) is fixedly connected with the inner bottom wall of the groove (30);

an air spring (42) is fixedly installed at the bottom of the supporting plate (4), and the lower end of the air spring (42) is fixedly connected with the top of the base (3);

bottom surface middle part fixedly connected with dead lever (43) of backup pad (4), dashpot (33) have been seted up to the inside of base (3), the inside both sides of dashpot (33) all are provided with movable block (330), two the equal fixed mounting in one side that movable block (330) kept away from each other has tensioning spring (331), tensioning spring (331) keep away from the one end of movable block (330) with the inside wall fixed connection of dashpot (33), the bottom of dead lever (43) extends to the inside of dashpot (33) and with two the movable block (330) contact.

2. A stamping die as claimed in claim 1, wherein:

go up stamping die (1) lower terminal surface and first wearing layer (60) bonding, stamping die (2) up end bonds with second wearing layer (61) down, first wearing layer (60) with second wearing layer (61) are the carbide alloy steel wearing layer.

3. A stamping die as claimed in claim 1, wherein:

the inner bottom wall of the buffer groove (33) is provided with a limiting groove (332), and the limiting groove (332) corresponds to the fixing rod (43).

4. A stamping die as claimed in claim 1, wherein:

the bottom fixed mounting of dead lever (43) has first reinforcing plate (50), two the equal fixed mounting in one side that movable block (330) are close to each other has second reinforcing plate (51).

5. A stamping die as claimed in claim 1, wherein:

the bottom of the lower stamping die (2) is fixedly provided with a cushion pad (7), and the bottom of the cushion pad (7) is fixedly connected with the top of the support plate (4).

6. A stamping die as claimed in claim 1, wherein:

an internal thread is arranged at one end, close to the punch (14), of the connecting rod (13), an external thread (140) is arranged at one end, far away from the head, of the punch (14), and the connecting rod (13) is in threaded connection with the punch (14).