CN210305556U

CN210305556U - Cold header die for hook nail machining and forming

Info

Publication number: CN210305556U
Application number: CN201920695940.5U
Authority: CN
Inventors: 邹建明
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-15
Filing date: 2019-05-15
Publication date: 2020-04-14
Anticipated expiration: 2029-05-15

Abstract

The utility model relates to a hardware processing field, concretely relates to be used for hook nail machine-shaping cold heading machine mould. The cold header die for processing and forming the hook nail comprises a female die, a first-time punching forming male die and a second-time punching forming male die, wherein the female die and the first-time punching forming male die are used for performing first-time cold heading stamping on a workpiece and used for upsetting a nail body primary blank with a coaxial straight rod section, a connecting section and a limiting part, a sheet penetrates into the connecting section and is extruded into a connecting arm of a bending structure, and the female die and the second-time forming male die are used for performing cold heading stamping on the connecting section part of the nail body primary blank and extruding and compressing the connecting section into a compression part. The utility model discloses a cold heading machine mould for machine-shaping is used through the mutual cooperation of master model and one towards public mould of shaping, two towards public moulds of shaping, and its is simple to use, and one shot forming accomplishes on a cold heading machine, need not artifical concatenation, secondary welding or punching press, and machining efficiency is high.

Description

Cold header die for hook nail machining and forming

Technical Field

The application field relates to the hardware processing field, concretely relates to a cold heading machine mould for hook nail machine-shaping.

Background

Hook nail is widely used in the pipeline installation process, is used for assisting fixed usefulness with the pipe in the centre of pipe when installing the water pipe, and current pipe nail is the nail body and welds a bent arm at nail body side, because the bent arm has one section and the side welded connection of the nail body, causes the nail body when the wall is being squeezed into, and the junction of side can contact the pore wall and make the welding department break away from, and the result of use is not good.

In order to solve the above problem, the utility model discloses a pipe nail is disclosed to utility model patent that grant bulletin number is CN204533819U, its characterized in that pipe nail is including the nail body and nail arm, the nail arm on be equipped with curved boom and a connecting hole, the nail body is the rodlike body, one end is equipped with the tip, connecting hole fixed connection on other one end and the nail arm the junction of nail body and nail arm, the one end that is close to the tip be equipped with a circular retainer plate, the curved boom be semi-circular.

The existing hook nail processing needs at least two steps, namely, a nail body and a nail arm are respectively processed and molded, a fixing ring is made on the nail body in a welding, molding, mounting and other modes, and a connecting hole is drilled on the nail arm by a drilling machine; and secondly, the nail body and the nail arm are connected into a whole through a stamping or welding process. The existing hook nail is complex to use, low in processing efficiency and high in labor cost.

SUMMERY OF THE UTILITY MODEL

Use complicated, the machining efficiency low, the high problem of cost of labor for solving above-mentioned hook nail, the utility model provides a cold heading machine mould for hook nail machine-shaping.

In order to achieve the above purpose, the technical scheme of the utility model is as follows: the utility model provides a cold heading machine mould for hook nail machine-shaping, includes the master model, one dashes into the public mould of shaping, two towards into the public mould of shaping, the master model is used for carrying out the first cold-heading punching press to the work piece and is used for upsetting out the nail body initial blank that has coaxial straight-bar section, linkage segment and spacing portion with the public mould of one towards the shaping to penetrate the sheet in the linkage segment, by the linking arm of extrusion bending structure, the master model is used for carrying out the cold-heading punching press with the linkage segment part of the public mould of second shaping to the nail body initial blank, is used for extrudeing the linkage segment and compresses into the compressing part.

Furthermore, a first die cavity for forming the straight rod section of the nail body primary blank is arranged on the female die, a second die cavity for forming the connecting section of the nail body primary blank is arranged on the male die, a third die cavity for forming the limiting part is formed by the female die and the male die in a surrounding mode when the female die and the male die are assembled, and the first die cavity, the second die cavity and the third die cavity are coaxially arranged.

Furthermore, a first die cavity penetrates through the die master die, and one port of the first die cavity is a blank feeding port.

Further, an arc-shaped convex part is arranged on the joint surface of the female die and the male die, an arc-shaped concave part is arranged on the joint surface of the male die and the female die, and when the female die and the male die are assembled, the arc-shaped convex part and the arc-shaped concave part form a fourth die cavity for extruding the connecting arm.

Furthermore, the die matching surfaces of the female die and the male die are respectively provided with a first notch and a second notch, and when the female die and the male die are matched, the first notch and the second notch are tangent to cut off the redundant part of the sheet.

Furthermore, the female die and the two-punch forming male die enclose a fifth die cavity for forming the pressing part when the dies are closed.

Further, the sectional area of the fifth cavity is larger than that of the third cavity.

The aforesaid is right the utility model discloses a description can know, compares with prior art, the utility model discloses a processing and shaping is with cold heading machine mould is through the public mould of master model and one towards the public mould of shaping, two towards the public mould of shaping and mutually support and use, and master model and one towards the public mould of shaping are used for upsetting out nail body blank to extrude the linking arm into the bending structure, penetrate nail body blank, master model and two towards the public mould of shaping are used for compressing tightly the linking arm in spacing portion, and its is simple to use, and one shot forming accomplishes on a cold heading machine, need not artifical concatenation, secondary welding or punching press, and machining efficiency is high.

Drawings

FIG. 1 is a schematic structural view of a female mold of a cold header mold for forming hook nails according to the present invention;

FIG. 2 is a schematic structural view of a first-punching male die of a cold header die for processing and forming hook nails in the present invention;

FIG. 3 is a schematic structural view of the female mold of the cold header mold for forming the hook nail and a male mold for forming the hook nail when the female mold and the male mold are closed;

FIG. 4 is a schematic structural view of a second-punch forming male die of a cold header die for processing and forming hook nails according to the present invention;

FIG. 5 is a schematic structural view of the mold assembly of the female mold and the male mold of the two-punch forming mold of the cold header for forming the hook nail of the present invention;

FIG. 6 is a schematic view of the structural flow of the nail hook of the present invention;

fig. 7 is a top view of the nail hook connecting arm of the present invention.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-6, a cold header die for processing and forming comprises a female die 1, a first-punching forming male die 2 and a second-punching forming male die 3;

the female die 1 is provided with a first die cavity 11 for forming a straight rod section of the nail body initial blank, the mating surfaces of the female die 1 and a male die for punching and forming are provided with an arc-shaped bulge 12 and a first cut 13, the first die cavity 11 penetrates through the female die, and one port of the first die cavity is a blank feeding hole 111;

a second die cavity 21 for forming the connecting section of the nail body primary blank is arranged on the first punching male die 2, and an arc-shaped concave part 22 and a second notch 23 are arranged on the joint surface of the first punching male die 2 and the female die 1;

a third die cavity 14 for forming a limiting part is formed by the female die 1 and the male die 2 in a surrounding mode when the dies are assembled; the first die cavity 11, the second die cavity 21 and the third die cavity 14 are coaxially arranged and used for upsetting a blank into a nail body primary blank with a coaxial straight rod section, a connecting section and a limiting part; the arc-shaped convex part 12 and the arc-shaped concave part 23 enclose a fourth die cavity 24 for extruding the connecting arm, and the first notch 13 and the second notch 23 are tangent for cutting off the redundant cut-off part of the sheet material;

the matched mould surface of two towards shaping public mould 3 and master model 1 is equipped with arc indent 31, encloses into the fifth die cavity 32 that is used for the shaping portion of compressing tightly during two towards shaping public mould compound dies, and the sectional area of fifth die cavity 32 is greater than the sectional area of third die cavity 14, and master model 1 and second shaping public mould 3 are used for carrying out cold-heading punching to the linkage segment part of nail body initial blank for compress into the portion of compressing tightly with the linkage segment extrusion.

Referring to fig. 6-7, the working steps of the forming die for processing the hook nail when in use are as follows:

s1, cutting, namely cutting the metal wire into small-section blanks 1a with the length according with the formed volume of the product by taking the metal wire as a nail body raw material;

s2, carrying out cold heading and stamping once, during die parting, simultaneously placing the small section of blank 1a obtained in the step S1 and the sheet for forming the connecting arm 2a into the female die and the first-punch forming male die, enabling the sheet for forming the connecting arm to enter from a gap between the female die and the first-punch forming male die during die parting, enabling the feeding direction of the sheet to be vertical to the feeding direction of the small section of blank,

when the die is closed, under the action of the female die and the first-punch forming male die, the small-section blank is cold-headed into a nail body initial blank 11a, the nail body initial blank is provided with a straight rod section 111a, a connecting section 112a and a limiting part 113a which are coaxial, the diameter of the limiting part 113a is larger than that of the straight rod section 111 and the connecting section 112a,

when the die is closed, under the action of the female die and the first cold heading die, the redundant part of the sheet material 2a is cut off, the connecting section 112a punches the connecting hole 21a on the sheet material of the connecting arm 2a, and the connecting hole 21a simultaneously penetrates into the connecting section and is extruded into a bent structure;

and S3, secondary cold heading stamping, removing the first cold heading die, and extruding and compressing the connecting section 112a into a compression part 112b under the action of the female die and the second stamping male die, wherein the diameter of the compression part 112b is larger than that of the connecting hole 21a, and the connecting arm 2a is compressed on the limiting part 113 a.

It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes or equivalents may be substituted for elements thereof by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are intended to be covered by the present invention.

Claims

1. The utility model provides a cold heading machine mould for hook nail machine-shaping which characterized in that: the female die and the second forming male die are used for performing cold heading stamping on a workpiece for the first time to upset a nail body primary blank with a straight rod section, a connecting section and a limiting part which are coaxial, penetrating a sheet into the connecting section and extruding the sheet into a connecting arm of a bending structure, and extruding the connecting section of the nail body primary blank into a pressing part by extruding; the female die is provided with a first die cavity for forming a straight rod section of the nail body primary blank, the first punching male die is provided with a second die cavity for forming a connecting section of the nail body primary blank, the female die and the first punching male die are enclosed into a third die cavity for forming the limiting part when the female die and the first punching male die are closed, and the first die cavity, the second die cavity and the third die cavity are coaxially arranged.

2. The cold header die for processing and forming the hook nail according to claim 1, wherein: the first die cavity penetrates through the female die, and one port of the first die cavity is a blank feeding port.

3. The cold header die for processing and forming the hook nail according to claim 1, wherein: the mold comprises a female mold and a male mold, wherein an arc-shaped convex part is arranged on the joint surface of the female mold and the male mold, an arc-shaped concave part is arranged on the joint surface of the male mold and the female mold, and a fourth mold cavity for extruding a connecting arm is formed by the arc-shaped convex part and the arc-shaped concave part when the female mold and the male mold are closed.

4. The cold header die for processing and forming the hook nail according to claim 1, wherein: the die assembly surfaces of the female die and the male die are respectively provided with a first notch and a second notch, and when the female die and the male die are assembled, the first notch and the second notch are tangent to cut off the redundant part of the sheet.

5. The cold header die for processing and forming the hook nail according to claim 1, wherein: and the female die and the two-punch forming male die enclose a fifth die cavity for forming the pressing part when the dies are closed.

6. The cold header die for processing and forming the hook nail according to claim 5, wherein: the sectional area of the fifth die cavity is larger than that of the third die cavity.