CN220837523U

CN220837523U - Boss punching assembly

Info

Publication number: CN220837523U
Application number: CN202322732639.6U
Authority: CN
Inventors: 刘勇
Original assignee: Dongguan Yulin Mould Co ltd
Current assignee: Dongguan Yulin Mould Co ltd
Priority date: 2023-10-11
Filing date: 2023-10-11
Publication date: 2024-04-26
Anticipated expiration: 2033-10-11

Abstract

The utility model relates to a boss punching assembly, which comprises an upper die assembly and a lower die assembly which are relatively opened and closed; the upper die assembly comprises a boss inner top and a punching punch; the bottom of the inner top of the boss is provided with a concave groove body; the punching punch is connected in the inner top of the boss in a sliding way, the top of the punching punch is elastically connected with the upper die assembly, and the lower bottom of the punching punch can extend to the lowest end surface of the inner top of the boss when the die is assembled; the lower die assembly comprises a boss punching head; the boss punching head is correspondingly arranged below the inner top of the boss, the top of the boss punching head is provided with a convex boss, and the boss punching head and the concave groove body can be mutually extruded on the backboard to form a boss when the die is closed; the convex boss is provided with a punching knife edge for the punching punch to pass through. Above-mentioned beat boss subassembly that punches a hole through being equipped with in the boss top and the boss top of beating to be equipped with the drift that punches a hole in the boss top in beating, can accomplish in single compound die action and punch two kinds of processes, compare in the process of duplex position in the past, saved mould occupation space, promote work efficiency.

Description

Boss punching assembly

Technical Field

The utility model relates to the technical field of punching dies, in particular to a boss punching assembly.

Background

As shown in fig. 1, a television back plate is typically made of a metal material for covering and protecting electronic components and circuit boards inside the television. The backboard is provided with criss-cross hole digging structures, and the hole digging structures are used for achieving the lightening effect under the condition of guaranteeing the overall strength. The rest plate body is provided with structural holes such as heat dissipation holes, assembly holes and the like for heat dissipation and assembly.

The edge of the assembly hole at the partial amplification A is provided with a boss shape 1 protruding upwards, and the middle of the assembly hole is provided with a through hole 2 for loading nuts when the back plate is connected with the rest parts through bolts. In the existing manufacturing process, a television backboard is processed by using a continuous stamping die, two stations are generally designed for forming the through holes with the composite shape to ensure the punching effect, the convex hull forming process is carried out on all the composite holes of the type on a board body at the last station, the position of the formed convex hull is punched at the next station, and when the hole is punched, a bearing table is abutted to the position of the formed convex hull on the board, so that the impact deformation of the convex hull by a punching punch is avoided. The above procedures are carried out by two stations respectively, so that the occupied space is large, the working efficiency is low, the position of the punching position needs to be accurately positioned, and the machine adjustment difficulty is high. Thus, improvements are needed.

Disclosure of utility model

Based on the above, the utility model provides a boss punching assembly which can be combined into the same station of a continuous punching die for use, and solves the problems of the prior art that the operation is needed to be carried out by different stations, the occupied space is large and the working efficiency is low.

In order to achieve the purpose of the utility model, the utility model adopts the following technical scheme:

A boss punching assembly comprising:

Comprises an upper die assembly and a lower die assembly which are opened and closed relatively;

the upper die assembly comprises a boss inner top and a punching punch; the bottom of the inner top of the boss is provided with a concave groove body; the punching punch is connected in the inner top of the boss in a sliding way, the top of the punching punch is elastically connected with the upper die assembly, and the lower bottom of the punching punch can extend to the lowest end surface of the inner top of the boss when the die is assembled;

The lower die assembly comprises a boss punching head; the boss punching head is correspondingly arranged below the inner top of the boss, the top of the boss punching head is provided with a convex boss, and the boss punching head and the concave groove body can be mutually extruded on the backboard to form a boss when the die is closed; the convex boss is provided with a punching knife edge for the punching punch to pass through.

Further, the upper die assembly further comprises an upper die base, an upper clamping plate, a baffle plate, an upper stripper plate and an upper die plate which are sequentially arranged from top to bottom.

Further, the inner top of the boss is arranged in the upper template through the stripper plate insert sub-seat.

Further, the punching punch comprises a punch seat and a punch pin; the top of the punch seat is connected with the stop plate, the punch needle is arranged in the punch seat, and a spring is connected between the punch needle and the punch seat.

Further, the lower die assembly comprises a lower die plate, a lower backing plate and a lower die holder which are sequentially arranged from top to bottom.

Further, the boss punching head is arranged in the lower die plate through a lower die insert.

Further, the punching knife edge downwards penetrates through the lower die plate, the lower base plate and the lower die holder.

The utility model has the beneficial effects that:

Above-mentioned beat boss subassembly that punches a hole through being equipped with in the boss top and the boss top of beating to be equipped with the drift that punches a hole in beating the boss top in, be applicable to in the stamping die, can accomplish in single compound die action and punch two kinds of processes, compare in the process of duplex position in the past, saved mould occupation space, promote work efficiency.

The punching pin is elastically connected in the punching punch, so that punching can be completed in an auxiliary mode under the condition of reducing die assembly parameters, and the die assembly parameters can be adjusted to be proper to ensure the stability of a boss punching process, and the thinning material is avoided.

Drawings

FIG. 1 is a schematic view of a back plate structure to be processed in the background art;

FIG. 2 is a schematic view of the overall structure of the present utility model during mold closing;

FIG. 3 is an enlarged schematic view of a partial structure at B in FIG. 2;

FIG. 4 is a schematic view of the overall structure of the present utility model when the mold is opened;

Fig. 5 is an enlarged schematic view of a partial structure at C in fig. 4.

1. The shape of the boss; 2. a through hole;

100. An upper die assembly; 110. the inner top of the boss is knocked out; 111. a concave groove body; 120. punching a punch; 121. a punch holder; 122. punching needles; 123. a spring; 130. an upper die holder; 140. an upper clamping plate; 150. a stop plate; 160. an upper stripper plate; 170. an upper template; 180. removing the plate and putting the plate into the sub-seat;

200. A lower die assembly; 210. punching a boss punch; 211. convex boss; 212. punching a knife edge; 220. a lower template; 230. a lower backing plate; 240. a lower die holder; 250. and (5) lower mold inserts.

Detailed Description

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. Preferred embodiments of the present utility model are shown in the drawings. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

As shown in fig. 2-5, a boss punching assembly comprising: comprising an upper die assembly 100 and a lower die assembly 200 which are opened and closed relatively;

In this embodiment, the upper die assembly 100 includes an upper die holder 130, an upper clamping plate 140, a stop plate 150, an upper stripper plate 160, and an upper die plate 170, which are sequentially disposed from top to bottom; the lower die assembly 200 comprises a lower die plate 220, a lower backing plate 230 and a lower die holder 240 which are sequentially arranged from top to bottom;

The upper die assembly 100 includes a boss inner top 110 and a punching punch 120;

The boss inner top 110 is arranged in the upper template 170 through a stripper plate insert seat 180, and the bottom of the boss inner top 110 is provided with a concave groove body 111;

The punching punch 120 is slidably connected to the boss inner top 110, the top of the punching punch is elastically connected to the upper die assembly 100, and the bottom of the punching punch can extend to the lowest end surface of the boss inner top 110 when the die is assembled; specifically, the punching punch 120 includes a punch holder 121 and a punch pin 122; the top of the punch seat 121 is connected with the stop plate 150, the punch pin 122 is arranged in the punch seat 121, and a spring 123 is connected between the punch pin and the punch seat 121 to provide a buffering function during punching; the punching needle 122 can play a role in pre-punching during punching, so that the punching quality is improved; because the punching requires larger pressure to break the surface of the material, and the material is thinned and deformed when the die assembly parameter is directly applied to the boss making process, the punching pin 122 is elastically connected in the punching punch 120 under the condition of ensuring the die assembly parameter suitable for boss making, and the punching can be assisted to complete under the condition of reducing the die assembly parameter;

the lower die assembly 200 includes a boss punch 210;

The boss punching head 210 is correspondingly arranged below the boss inner top 110, and the top of the boss punching head is provided with a convex boss 211 which can be mutually extruded with the concave groove body 111 to form a boss on the backboard during die assembly; specifically, the boss punch 210 is disposed in the lower die plate 220 through a lower die insert 250;

The convex boss 211 is provided with a punching edge 212 for the punching head 120 to pass through, and the punching edge 212 penetrates downwards through the lower die plate 220, the lower backing plate 230 and the lower die holder 240, so that punching waste is discharged out of the die downwards without manual cleaning.

Working principle:

Firstly, opening a die, wherein a back plate is aligned to the upper part of the lower die assembly 200;

Then starting to mold, the boss inner top 110 and the punching punch 120 descend along with the upper die assembly 100, the boss inner top 110 is firstly contacted with the convex boss 211, the convex boss 211 provides upward reaction force, and the position of the backboard is pressed and molded into a boss structure; at the same time, the punch 120 punches holes at this location, and the punched scrap falls downward past the punch edge 212;

finally, the mold is opened, the upper stripper plate 160 pops up downwards, and the processed backboard pops up downwards to wait for the next mold closing processing.

Above-mentioned punch boss subassembly, through being equipped with in the boss top 110 and the boss top 110 of beating to be equipped with the drift 120 that punches a hole in the boss top 110 in beating, be applicable to in the stamping die, can accomplish in single compound die action and punch two kinds of processes, compare in the process of duplex position in the past, saved mould occupation space, promote work efficiency.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. A boss punching assembly, comprising:

2. The boss punching assembly of claim 1, wherein the upper die assembly further comprises an upper die base, an upper clamping plate, a stop plate, an upper stripper plate and an upper die plate, which are arranged in sequence from top to bottom.

3. The boss punching assembly of claim 2, wherein the boss inner top is disposed in the upper die plate by a stripper plate insert.

4. A boss punch assembly as recited in claim 2, wherein the punch pin includes a punch head and a punch pin; the top of the punch seat is connected with the stop plate, the punch needle is arranged in the punch seat, and a spring (123) is connected between the punch needle and the punch seat.

5. The boss punching assembly of claim 1, wherein the lower die assembly further comprises a lower die plate, a lower backing plate and a lower die holder arranged in sequence from top to bottom.

6. A boss punch assembly as recited in claim 5, wherein the boss punch is disposed in the lower die plate by a lower die insert.

7. The boss punch assembly of claim 5, wherein the punch edge extends downwardly through the lower die plate, lower bolster and lower die holder.