CN215845175U

CN215845175U - Punching die

Info

Publication number: CN215845175U
Application number: CN202120731226.4U
Authority: CN
Inventors: 卢洪辽; 曾凡慧
Original assignee: Dongguan Jianjia Die Casting Technology Co ltd
Current assignee: Dongguan Jianjia Die Casting Technology Co ltd
Priority date: 2021-04-09
Filing date: 2021-04-09
Publication date: 2022-02-18
Anticipated expiration: 2031-04-09

Abstract

The utility model relates to the technical field of punching, in particular to a punching die, which comprises an upper die holder, a pressing plate, an upper template, a lower template and a lower die holder which are sequentially arranged from top to bottom, and also comprises an upper buffer assembly arranged between the upper die holder and the pressing plate, a lower buffer assembly arranged between the lower template and the lower die holder and a plurality of punches; the pressing plate is provided with a plurality of first through holes, the upper template is provided with a plurality of second through holes, the lower template is provided with a plurality of third through holes, the center lines of the first through holes, the second through holes and the third through holes are overlapped, one end of a punch is fixedly connected to the upper die base and enters the second through holes through the first through holes, and when the upper template and the lower template are closed, one punch enters one third through hole and protrudes into the third through hole; through setting up the drift at the upper die base, set up buffer assembly between upper die base and clamp plate, improve processingquality when accomplishing the drift to the through-hole secondary operation of work piece, improve production efficiency.

Description

Punching die

Technical Field

The utility model relates to the technical field of punching, in particular to a punching die.

Background

As shown in fig. 4, the workpiece 100 is provided with a plurality of holes 101, the upper surface of the workpiece 100 is an irregular surface, so that the central axis of the hole 101 forms an included angle with the horizontal plane, after the workpiece 100 is die-cast, due to various reasons, the edge of the hole 101 generates burrs or skin separation, secondary processing is required, the plurality of holes 101 are subjected to secondary processing, the design requirement of the workpiece 100 is met, the included angle is formed between the central axis of the hole 101 and the horizontal plane, the processing quality of the plurality of holes 101 cannot be ensured by adopting a traditional punching mode, the production requirement cannot be met, and improvement is required.

Disclosure of Invention

In order to solve the problem of low production efficiency in the prior art, the utility model aims to provide a punching die which can improve punching quality and production efficiency.

In order to achieve the purpose, the technical scheme of the utility model is as follows:

a punching die comprises an upper die holder, a pressing plate, an upper template, a lower template and a lower die holder which are sequentially arranged from top to bottom, and further comprises an upper buffer assembly, a lower buffer assembly and a plurality of punches;

the upper buffer assembly is arranged between the upper die holder and the pressing plate;

the lower buffer assembly is arranged between the lower template and the lower die base;

the pressing plate is provided with a plurality of first through holes, the upper template is provided with a plurality of second through holes, the lower template is provided with a plurality of third through holes, the center line of one first through hole, the center line of one second through hole and the center line of one third through hole are overlapped, one end of a punch is fixedly connected with the upper die base, the punch enters the second through holes through the first through holes, and when the upper template and the lower template are closed, one punch enters one third through hole and protrudes into the third through hole;

the punch comprises an inclined plane, and the inclined plane is far away from the upper die base.

Furthermore, the upper die base is provided with a first blind hole, the pressing plate is provided with a second blind hole, one end of the upper buffering component is accommodated in the first blind hole, and the other end of the upper buffering component is accommodated in the second blind hole.

Furthermore, the lower template is provided with a third blind hole, the lower die base is provided with a fourth blind hole, one end of the lower buffer assembly is accommodated in the third blind hole, and the other end of the lower buffer assembly is accommodated in the fourth blind hole.

Furthermore, the porous forming die further comprises a guide pillar and a guide sleeve, the guide sleeve is fixedly connected to the upper die base, the pressing plate and the upper die plate are slidably connected to the guide sleeve, one end of the guide pillar is fixedly connected to the lower die base, and the guide pillar penetrates through the lower die plate and is slidably connected with the guide sleeve.

Furthermore, the punch comprises a punching part and a connecting piece detachably connected with the punching part, the connecting piece is connected with the upper die base, and the punching part penetrates through the first through hole and enters the second through hole.

Furthermore, the upper die base is provided with a groove, and one end of the punching part close to the upper die base is embedded in the groove.

The utility model has the beneficial effects that: through setting up the drift at the upper die base, set up buffer assembly between upper die base and clamp plate, improve processingquality when accomplishing the drift to the through-hole secondary operation of work piece, improve production efficiency.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

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

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

fig. 4 is a perspective view of a workpiece to be machined.

Detailed Description

For the understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.

Referring to fig. 1 to 3, the punching die of the present invention includes an upper die holder 1, a pressing plate 2, an upper die plate 3, a lower die plate 4, a lower die holder 5, an upper buffer assembly 6, a lower buffer assembly 7, and a plurality of punches 8, which are sequentially disposed from top to bottom;

the upper buffer assembly 6 is arranged between the upper die holder 1 and the pressing plate 2;

the lower buffer component 7 is arranged between the lower template 4 and the lower die holder 5;

the pressing plate 2 is provided with a plurality of first through holes 21, the upper template 3 is provided with a plurality of second through holes 31, the lower template 4 is provided with a plurality of third through holes 41, the center line of one first through hole 21, the center line of one second through hole 31 and the center line of one third through hole 41 are overlapped, one end of a punch 8 is fixedly connected to the upper die holder 1, the punch 8 enters the second through hole 31 through the first through hole 21, and when the upper template 3 and the lower template 4 are closed, one punch 8 enters one third through hole 41 and protrudes into the third through hole 41;

the punch 8 comprises a slope 801, and the slope 801 is far away from the upper die holder 1.

Specifically, in this embodiment, the lower template 4 is equipped with the lower mold core, and the upper template 3 is equipped with the upper mold core, and the upper mold core uses with the lower mold core cooperation, and the lower mold core is equipped with a plurality of third through-hole 41, and the thickness of upper mold core is run through to second through-hole 31, at first places the work piece 100 of treating processing at the lower mold core, and upward buffering subassembly 6 is the spring part, and lower buffering subassembly 7 is spring part, non-operating condition: under the action of an upper buffer component 6, a press plate 2 and an upper die base 1 are arranged at a distance, a punch 8 retracts into a second through hole 31, under the action of a lower buffer component 7, a lower die plate 4 and a lower die base 5 are arranged at a distance, when an external force drives the upper die base 1 to move towards the direction of the lower die plate 4 until the upper die core is attached to the lower die core, the external force is continuously applied to the upper die base 1, the upper buffer component 6 is compressed, the upper die base 1 gradually approaches to the press plate 2, synchronously, the punch 8 moves towards a third through hole 31 until the punch 8 passes through a through hole 101 in a workpiece 100 to enter the third through hole 31, under the impact force of the punch 8, a burr or a separation skin in the through hole 101 is removed, the secondary processing of the workpiece 100 is completed, the lower buffer component 7 is arranged, the instant pressure is prevented from being applied to the workpiece 100, the purpose of protecting the workpiece 100 is achieved, and the inclination angle of an inclined plane 801 needs to be matched with the through hole 101 in the workpiece 100, the punch 8 is integrally contacted with the through hole 101, and the processing quality is improved.

By arranging the punch 8 on the upper die holder 1 and arranging the upper buffer assembly 6 between the upper die holder 1 and the pressing plate 2, the secondary processing of the punch 8 on the through hole 101 of the workpiece 100 is completed, the processing quality is improved, and the production efficiency is improved.

The upper die holder 1 is provided with a first blind hole 11, the press plate 2 is provided with a second blind hole 22, one end of the upper buffer assembly 6 is accommodated in the first blind hole 11, the other end of the upper buffer assembly 6 is accommodated in the second blind hole 22, and the first blind hole 11 and the second blind hole 22 are respectively used for accommodating two end parts of the upper buffer assembly 6, so that the stability of the bouncing or shrinking direction of the upper buffer assembly 6 is ensured.

The lower template 4 is provided with a third blind hole 42, the lower die base 5 is provided with a fourth blind hole 51, one end of the lower buffer assembly 7 is accommodated in the third blind hole 42, the other end of the lower buffer assembly 7 is accommodated in the fourth blind hole 51, and the third blind hole 42 and the fourth blind hole 51 are respectively used for accommodating two end parts of the lower buffer assembly 7, so that the stability of the flicking or shrinking direction of the lower buffer assembly 7 is ensured.

The porous forming die further comprises a guide pillar 91 and a guide sleeve 92, the guide sleeve 92 is fixedly connected to the upper die holder 1, the press plate 2 and the upper die plate 3 are slidably connected to the guide sleeve 92, one end of the guide pillar 91 is fixedly connected to the lower die holder 5, the guide pillar 91 penetrates through the lower die plate 4 and is slidably connected with the guide sleeve 92, and the guide pillar 91 and the guide sleeve 92 are arranged to further ensure the stability of the upper die holder 1 relative to the movement direction of the lower die holder 5, namely the accuracy of the reciprocating movement direction of the punch 8 is ensured, so that the production and processing quality is improved.

Punch 8 including towards portion 81 and with towards connecting piece 82 that portion 81 can dismantle the connection, connecting piece 82 with upper die base 1 is connected, towards portion 81 and pass in first through-hole 21 gets into second through-hole 31, connecting piece 82 adopts the connecting bolt structure, and connecting piece 82 will towards portion 81 fixed connection at upper die base 1, conveniently overhauls and changes towards portion 81, ensures processingquality.

The upper die holder 1 is provided with a groove 12, one end, close to the upper die holder 1, of the punching portion 81 is embedded in the groove 12, the punching portion 81 is fixed conveniently due to the arrangement of the groove 12, and the installation accuracy of the punching portion 81 and the upper die holder 1 is guaranteed.

The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.

Claims

1. The utility model provides a punching die, includes upper die base (1), clamp plate (2), cope match-plate pattern (3), lower bolster (4) and die holder (5) that top-down set gradually, its characterized in that: the punching machine also comprises an upper buffer component (6), a lower buffer component (7) and a plurality of punches (8);

the upper buffer assembly (6) is arranged between the upper die holder (1) and the pressing plate (2);

the lower buffer component (7) is arranged between the lower template (4) and the lower die base (5);

the die comprises a pressing plate (2), an upper die plate (3) and a lower die plate (8), wherein the pressing plate (2) is provided with a plurality of first through holes (21), the upper die plate (3) is provided with a plurality of second through holes (31), the lower die plate (4) is provided with a plurality of third through holes (41), the center line of one first through hole (21), the center line of one second through hole (31) and the center line of one third through hole (41) are overlapped, one end of one punch (8) is fixedly connected to the upper die base (1), the punch (8) enters the second through hole (31) through the first through hole (21), and when the upper die plate (3) and the lower die plate (4) are closed, one punch (8) enters one third through hole (41) and protrudes into the third through hole (41);

the punch (8) comprises an inclined plane (801), and the inclined plane (801) is far away from the upper die base (1).

2. The punching die of claim 1, wherein: the upper die holder (1) is provided with a first blind hole (11), the pressing plate (2) is provided with a second blind hole (22), one end of the upper buffer assembly (6) is accommodated in the first blind hole (11), and the other end of the upper buffer assembly (6) is accommodated in the second blind hole (22).

3. The punching die of claim 1, wherein: the lower die plate (4) is provided with a third blind hole (42), the lower die base (5) is provided with a fourth blind hole (51), one end of the lower buffer assembly (7) is accommodated in the third blind hole (42), and the other end of the lower buffer assembly (7) is accommodated in the fourth blind hole (51).

4. The punching die of claim 1, wherein: the porous forming die further comprises a guide pillar (91) and a guide sleeve (92), the guide sleeve (92) is fixedly connected to the upper die base (1), the pressing plate (2) and the upper die plate (3) are connected to the guide sleeve (92) in a sliding mode, one end of the guide pillar (91) is fixedly connected to the lower die base (5), and the guide pillar (91) penetrates through the lower die plate (4) and is connected with the guide sleeve (92) in a sliding mode.

5. The punching die of claim 1, wherein: drift (8) including towards portion (81) and with towards connecting piece (82) that portion (81) can dismantle the connection, connecting piece (82) with upper die base (1) is connected, towards portion (81) and pass first through-hole (21) and get into in second through-hole (31).

6. The punching die of claim 5, wherein: the stamping die is characterized in that the upper die base (1) is provided with a groove (12), and one end, close to the upper die base (1), of the stamping part (81) is embedded in the groove (12).