CN210412108U

CN210412108U - Composite punching die

Info

Publication number: CN210412108U
Application number: CN201920827178.1U
Authority: CN
Inventors: 杨华宾
Original assignee: Dongguan Fast Precision Hardware Co ltd
Current assignee: Dongguan fast Precision Technology Co., Ltd
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-04-28
Anticipated expiration: 2029-05-31

Abstract

The utility model relates to a composite punching die, which comprises an upper die base, an upper die, a lower die and a lower die base, and also comprises at least one upper punching mechanism for punching from bottom to top; the upper die is arranged on the lower surface of the upper die base, and the upper die base is provided with a lower punching mechanism for punching from top to bottom; the lower die is arranged on the upper surface of the lower die base, and the upper die is positioned above the lower die and corresponds to the lower die; the upper punching mechanism comprises an upper push rod, a rotating block, a lower push rod, a lower punching knife and a compression spring, the upper portion of the upper push rod is arranged on an upper die base, the upper die base moves downwards to drive the upper push rod, the lower end of the upper push rod is contacted with the upper end of the lower push rod to push the lower punching knife to move downwards, the lower end of the lower push rod pushes the rotating block to move downwards, the lower punching knife moves upwards, the lower punching knife is punched upwards under the lower punching knife, the purpose that the upper punching knife is punched downwards from top to bottom and the two directions are punched from bottom to top is achieved by one set of dies, production efficiency is improved, and production cost is reduced.

Description

Composite punching die

Technical Field

The utility model relates to a die-cut equipment field specifically, relates to a compound die-cut mould.

Background

In the production and processing process of products such as mobile phone shells, punching processing needs to be carried out on the products after die-casting forming, and the punching processing comprises punching the products from top to bottom, punching from the side and punching from bottom to top. The existing punching dies can only realize top-down punching, and some punching dies can realize top-down punching and side-face punching, such as a composite punching die disclosed in patent document CN207655714U, and another set of die is required for bottom-up punching. Therefore, the product is punched from top to bottom, punched from the side surface and punched from bottom to top, and at least two sets of punching dies and at least two processes are needed to complete the whole processing flow, the efficiency is lower, and the cost is higher.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a compound die-cut mould, the die-casting product that aims at solving among the prior art needs many sets of moulds to carry out die-cut to it and leads to whole process flow longer, and efficiency is lower, the higher technical problem of cost.

The utility model adopts the technical scheme as follows: a composite punching die comprises an upper die holder, an upper die, a lower die and a lower die holder, wherein the upper die is mounted on the lower surface of the upper die holder, and the upper die holder is provided with a lower punching mechanism for punching from top to bottom; the lower die is arranged on the upper surface of the lower die base, the upper die is positioned above the lower die and corresponds to the lower die, and the composite punching die further comprises at least one upper punching mechanism for punching from bottom to top; the upper punching mechanism comprises an upper push rod, a rotating block, a lower push rod, a lower punching cutter and a compression spring, the rotating block is rotatably arranged in the lower die seat, and the lower push rod, the lower punching cutter and the compression spring are all positioned in the lower die seat; the lower push rod is positioned on one side of the upper surface of the rotating block, the lower punching knife and the compression spring are positioned on the other side of the upper surface of the rotating block, and the lower end of the lower push rod, the lower end of the lower punching knife and the lower end of the compression spring are respectively in contact fit with the rotating block; the upper end of the lower punch is matched with the lower die, and the upper end of the compression spring is fixedly arranged in the lower die seat; the upper portion of the upper push rod is arranged on the upper die base, the upper die base moves downwards to drive the upper die and the lower die to be matched and drive the upper push rod to move downwards, the lower end of the upper push rod is in contact with the upper end of the lower push rod to push the lower push rod to move downwards, the lower end of the lower push rod pushes the rotating block to rotate towards the lower punch knife, the lower punch knife moves upwards, and the lower punch knife is punched from bottom to top.

Optionally, a first notch is formed in the middle of the upper part of the rotating block, the lower push rod is located on one side of the first notch, and a second notch matched with the rotating block is formed in the lower end of the lower push rod; the lower punching knife and the compression spring are positioned on the other side of the first notch.

Optionally, the upper cutting mechanism further comprises a spring seat, the spring seat is fixedly arranged in the lower die seat, and the upper end of the compression spring is fixedly arranged on the spring seat.

Optionally, the upper punching mechanism further comprises a limiting rod, and the limiting rod is fixedly arranged in the lower die base and is positioned on one side of the rotating block; when the lower end of the lower push rod pushes the rotating block to rotate towards the lower punching knife, the limiting rod limits the rotating block.

Optionally, the side of the rotating block has a third notch, and the limiting rod is located at the third notch.

Optionally, a side punching mechanism for punching from the side surface is arranged on the lower die base; the side punching mechanism comprises a fixed seat fixed on the lower die holder and a side punching tool holder connected with a side punching tool, the fixed seat is provided with a chute, the side punching tool holder is provided with a sliding block matched with the chute, and the side punching tool holder is connected with the fixed seat in a sliding manner; the side punching tool rest or the upper die seat is connected with a push block, and the push block is provided with a side punching inclined plane used for pushing the side punching tool rest to a workpiece.

One or more technical solutions in the composite punching die provided by the embodiment of the present invention have at least one of the following technical effects: in specific use, the upper die base is connected with a power end of a machine tool. When need carry out die-cut, put into the lower mould with the product, the power end of lathe drives the upper die base downstream, and the upper die base downstream drives mould and lower mould compound die, goes up die-cut mechanism and realizes from up die-cut down, and down die-cut mechanism realizes from last die-cut down, reaches one set of mould and realizes from last down, from up two die-cut purposes of direction down simultaneously, improves production efficiency, reduction in production cost. The working principle of the upper punching mechanism is as follows: the upper die base moves downwards to drive the upper push rod to move downwards, so that the lower end of the upper push rod is in contact with the upper end of the lower push rod to push the lower push rod to move downwards, the lower end of the lower push rod pushes the rotating block to rotate towards the lower punch, the lower punch moves upwards, and the lower punch is punched from bottom to top; after the die is opened, the lower end of the upper push rod is separated from the upper end of the lower push rod, the rotating block rotates and resets under the action of the compression spring, the lower punching knife resets under the action of gravity, and the lower end of the lower punching knife is always in contact with the rotating block. The upper punching mechanism is simple in structure and convenient to operate. The utility model discloses still through addding the die-cut mechanism in side for above-mentioned compound die-cut mould can realize from last down die-cut, die-cut and from down up die-cut function down, reaches the die-cut purpose that one set of mould realized three direction simultaneously, improves production efficiency, reduction in production cost.

Drawings

Fig. 1 is a schematic structural view of a composite punching die provided in an embodiment of the present invention;

FIG. 2 is a cross-sectional view of the composite piercing die provided in FIG. 1;

fig. 3 is a schematic structural diagram of an upper punching mechanism of a composite punching die according to an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary and intended to explain the embodiments of the present invention and are not to be construed as limiting the present invention.

In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.

As shown in fig. 1 and 2, an embodiment of the present invention provides a composite punching die, which includes an upper die base 1, an upper die 2, a lower die 3, a lower die base 4, and two upper punching mechanisms for punching from bottom to top; the upper die 2 is arranged on the lower surface of the upper die holder 1, and the upper die holder 1 is provided with a lower punching mechanism for punching from top to bottom; the lower die 3 is arranged on the upper surface of a lower die base 4, and a side punching mechanism 12 for punching from the side surface is arranged on the lower die base 4; the upper die 2 is positioned above the lower die 3 and corresponds to the lower die 3; the upper punching mechanism comprises an upper push rod 5, a rotating block 6, a lower push rod 7, a lower punching cutter 8 and a compression spring 9, the rotating block 6 is rotatably arranged in the lower die seat 4, and the lower push rod 7, the lower punching cutter 8 and the compression spring 9 are all positioned in the lower die seat 4; the lower push rod 7 is positioned on one side of the upper surface of the rotating block 6, the lower punching knife 8 and the compression spring 9 are positioned on the other side of the upper surface of the rotating block 6, and the lower end of the lower push rod 7, the lower end of the lower punching knife 8 and the lower end of the compression spring 9 are respectively in contact fit with the rotating block 6; the upper end of the lower punch 8 is matched with the lower die 3, and the upper end of the compression spring 9 is fixedly arranged in the lower die holder 4; the upper portion of the upper push rod 5 is arranged on the upper die base 1, the upper die base 1 moves downwards to drive the upper die 2 and the lower die 3 to be matched with each other, the upper push rod 5 is driven to move downwards, the lower end of the upper push rod 5 is in contact with the upper end of the lower push rod 7 to push the lower push rod 7 to move downwards, the lower end of the lower push rod 7 pushes the rotating block 6 to rotate towards the lower punch 8, the lower punch 8 moves upwards, and punching from bottom to top of the lower punch 8 is achieved.

In specific use, the upper die holder 1 is connected with a power end of a machine tool. When needing to carry out die-cut, put into lower mould 3 with the product, the power end of lathe drives upper die base 1 downstream, and upper die base 1

downstream drives mould

2 and 3 compound dies of lower mould, goes up die-cut mechanism and realizes from up die-cut down, and down die-cut mechanism realizes from last die-cut down, and die-cut mechanism 12 of side realizes die-cut from the side, reaches the die-cut purpose of one set of mould realization three direction simultaneously, improves production efficiency, reduction in production cost. The working principle of the upper punching mechanism is as follows: the upper die holder 1 moves downwards to drive the upper push rod 5 to move downwards, so that the lower end of the upper push rod 5 is in contact with the upper end of the lower push rod 7 to push the lower push rod 7 to move downwards, the lower end of the lower push rod 7 pushes the rotating block 6 to rotate towards the lower punch 8, the lower punch 8 moves upwards, and punching of the lower punch 8 from bottom to top is realized; the extent of the rotation of the rotating block 6 determines the distance of upward movement of the lower punch 8, so that the setting of the stopper rod 11 is determined according to the distance between the lower punch 8 and the target position (i.e., the position to be punched). After the mold is opened, the lower end of the upper push rod 5 is separated from the upper end of the lower push rod 7, the rotating block 6 rotates and resets under the action of the compression spring 9, the lower punch 8 resets under the action of gravity, and the lower end of the lower punch is always in contact with the rotating block 6.

The lower punching mechanism for punching from top to bottom and the side punching mechanism for punching from the side can adopt the existing common structures; it is not the gist of the present invention and will not be described in detail here.

In another embodiment, the middle of the upper part of the rotating block 6 is provided with a first notch 601, the section of the first notch is concave, the lower push rod 7 is positioned at one side of the first notch 601, and the lower end of the lower push rod 7 is provided with a second notch matched with the rotating block 6; the lower punching knife 8 and the compression spring 9 are positioned on the other side of the first notch 601.

In another embodiment, the upper punch mechanism further comprises a spring seat 10, the spring seat 10 is fixedly arranged in the lower die holder 4, and the upper end of the compression spring 9 is fixedly arranged on the spring seat 10.

In another embodiment, the upper punch mechanism further comprises a limiting rod 11, and the limiting rod 11 is fixedly arranged in the lower die holder 4 and is positioned on one side of the rotating block 6; when the lower end of the lower push rod 7 pushes the rotating block 6 to rotate towards the lower punching knife 8, the limiting rod 11 limits the rotating block 6.

In another embodiment, the side of the turning block 6 has a third notch 602, and the limiting rod is located at the third notch 602.

In another embodiment, the side punching mechanism comprises a fixed seat fixed on the lower die holder and a side punching tool holder connected with a side punching tool, the fixed seat is provided with a chute, the side punching tool holder is provided with a sliding block matched with the chute, and the side punching tool holder is connected with the fixed seat in a sliding manner; the side punching tool rest or the upper die seat is connected with a push block, and the push block is provided with a side punching inclined plane used for pushing the side punching tool rest to a workpiece.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A composite punching die comprises an upper die holder, an upper die, a lower die and a lower die holder, wherein the upper die is mounted on the lower surface of the upper die holder, and the upper die holder is provided with a lower punching mechanism for punching from top to bottom; the lower die is arranged on the upper surface of the lower die base; the upper die is arranged above the lower die and corresponds to the lower die, and the upper die is characterized in that: the punching machine also comprises at least one upper punching mechanism for punching from bottom to top; the upper punching mechanism comprises an upper push rod, a rotating block, a lower push rod, a lower punching cutter and a compression spring, the rotating block is rotatably arranged in the lower die seat, and the lower push rod, the lower punching cutter and the compression spring are all positioned in the lower die seat; the lower push rod is positioned on one side of the upper surface of the rotating block, the lower punching knife and the compression spring are positioned on the other side of the upper surface of the rotating block, and the lower end of the lower push rod, the lower end of the lower punching knife and the lower end of the compression spring are respectively in contact fit with the rotating block; the upper end of the lower punch is matched with the lower die, and the upper end of the compression spring is fixedly arranged in the lower die seat; the upper portion of the upper push rod is arranged on the upper die base, the upper die base moves downwards to drive the upper die and the lower die to be matched and drive the upper push rod to move downwards, the lower end of the upper push rod is in contact with the upper end of the lower push rod to push the lower push rod to move downwards, the lower end of the lower push rod pushes the rotating block to rotate towards the lower punch knife, the lower punch knife moves upwards, and the lower punch knife is punched from bottom to top.

2. The composite piercing die of claim 1, wherein: the middle of the upper part of the rotating block is provided with a first notch, the lower push rod is positioned on one side of the first notch, and the lower end of the lower push rod is provided with a second notch matched with the rotating block; the lower punching knife and the compression spring are positioned on the other side of the first notch.

3. The composite piercing die of claim 1, wherein: the upper punching mechanism further comprises a spring seat, the spring seat is fixedly arranged in the lower die seat, and the upper end of the compression spring is fixedly arranged on the spring seat.

4. The composite piercing die of claim 1, wherein: the upper punching mechanism also comprises a limiting rod which is fixedly arranged in the lower die base and positioned at one side of the rotating block; when the lower end of the lower push rod pushes the rotating block to rotate towards the lower punching knife, the limiting rod limits the rotating block.

5. The composite piercing die of claim 4, wherein: the side of the rotating block is provided with a third notch, and the limiting rod is located at the third notch.

6. The composite blanking die of any one of claims 1 to 5, characterized in that: the lower die base is provided with a side punching mechanism for punching from the side surface, the side punching mechanism comprises a fixed base fixed on the lower die base and a side punching tool apron connected with a side punching tool, the fixed base is provided with a sliding groove, the side punching tool apron is provided with a sliding block matched with the sliding groove, and the side punching tool apron is connected with the fixed base in a sliding manner; the side punching tool rest or the upper die seat is connected with a push block, and the push block is provided with a side punching inclined plane used for pushing the side punching tool rest to a workpiece.