CN214263741U

CN214263741U - Screw forming die

Info

Publication number: CN214263741U
Application number: CN202022975203.6U
Authority: CN
Inventors: 沈永飞
Original assignee: Jiashan Yongjie Precision Mould Co ltd
Current assignee: Jiashan Yongjie Precision Mould Co ltd
Priority date: 2020-12-08
Filing date: 2020-12-08
Publication date: 2021-09-24
Anticipated expiration: 2030-12-08

Abstract

The utility model relates to the technical field of cold heading dies, in particular to a screw forming die, which comprises a die body, wherein the middle part of the die body is a die core, a screw rod part forming cavity is arranged in the die core, a port on one side of the cavity is a screw head part forming port, the other side is a screw rod part forming port, the outer port of the head part forming port is in a conical inward concave shape, the outer port and the inner port are in a coaxial arrangement, the port wall of the inner port is in a V shape, a triangular groove is arranged between the inner port and the outer port, the triangular groove is arranged at the V-shaped opening of the inner port wall, the outer port and the inner port of the screw rod part forming port are in a coaxial arrangement, a notch is arranged on the inner wall of the outer port connected with the inner port, the notch comprises a triangular notch and a circular arc notch, and a strip-shaped notch is arranged on the periphery of the screw rod part forming port, the utility model discloses collect screwhead type and cell type on a mould, it is easy and simple to handle, work efficiency is high.

Description

Screw forming die

Technical Field

The utility model relates to a cold-heading mould technical field, more specifically say, it relates to a screw forming die.

Background

Screws are one of the most common connecting elements in daily life, and the connection needs to be fixed through the screws in many installation processes. When the screw is produced, the metal wire is required to be cut into a required length, a required head shape and a required groove shape are punched by a head punching machine, and then thread rolling is carried out. The head shape of the screw is various, such as a pan head, a large flat head, a countersunk head, a hexagon head and the like, the groove shape of the screw is also various, the screw is commonly in a straight shape, a cross shape, a quincunx shape, an inner hexagon, an outer hexagon and the like, and a matched screw head forming die is needed when the required head shape and the required groove shape are punched.

However, the existing dies are generally of a single punch type or a single slot type, the two dies are rarely combined on one die, and the die punching by dividing the two dies not only increases the cost, but also wastes time and labor, and has lower production efficiency.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a screw pin fin type and cell type merge on same mould for easy operation, labour saving and time saving's screw forming die.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a screw forming die, includes the mould body, mould body middle part is mould benevolence, is equipped with screw rod portion shaping cavity in the mould benevolence, cavity one side port is screw head shaping mouth, and the opposite side is screw rod portion shaping mouth, the outer port of head shaping mouth is the inside concave yield of toper, and outer port is coaxial setting with interior port, and the port wall of interior port is for opening between "V" type and inner port and outer port and is equipped with three horn shape recesses, three horn shape recesses are seted up the opening part of "V" type of locating inner port wall, the outer port of screw rod portion shaping mouth sets up with inner port is coaxial, has seted up the notch on the inner wall that outer port and inner port are connected, the notch includes three horn shape notches and convex notch, screw rod portion shaping mouth week side still is equipped with strip notch.

Furthermore, four triangular grooves are arranged in the head forming port and are distributed in a cross shape, and the tips of the triangles are arranged at the outer port.

And furthermore, four triangular notches and four arc-shaped notches are arranged in the forming port of the screw rod part, and the arc-shaped notches are arranged between the two triangular notches and are distributed in a shape like a Chinese character 'kou'.

Still further, the strip-shaped notches are annularly arranged at intervals around the forming opening of the screw rod part, and at least six strip-shaped notches are formed.

Still further, mould body one side outer wall is equipped with two notches, the notch is triangle-shaped and the edge is arc, and the inside recess of limit that the triangle tip of notch corresponds presents a platform.

Preferably, the inner walls of the die core and the screw rod part forming cavity are both made of tungsten steel materials.

Compared with the prior art, the beneficial effects of the utility model reside in that: the punching die for the screw head and the punching die for the groove part are integrated on the upper side and the lower side of a die, and the die is changed in the direction to continue punching after one side is punched, so that the design is simple and convenient, the punching work of the screw can be completed more efficiently and more time and labor are saved; meanwhile, the mold core is made of excellent tungsten steel materials, and other parts are made of common steel, so that high-quality materials are saved to a certain extent, the manufacturing cost is reduced, the wear-resisting property of the product is improved, and the service life is prolonged.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;

FIG. 2 is a front view of a recessed surface of a mold body according to an embodiment of the present invention;

fig. 3 is a top view of the screw shaft forming opening according to the embodiment of the present invention;

fig. 4 is a plan view of the screw head forming opening according to the embodiment of the present invention.

In the figure: 1-a mould body; 2-a mold core; 3-forming a screw head forming opening; 3 a-triangular grooves; 4-forming a screw rod part forming opening; 4 a-triangular notches; 4 b-arc-shaped notches; 5-notch; 5 a-a platform; 6-strip-shaped notch.

Detailed Description

The following embodiments of the present invention will be further described with reference to the accompanying drawings 1-4.

The utility model provides a screw forming die, including

mould body

1, 1 middle part of mould body is mould benevolence 2, be equipped with screw pole portion shaping cavity in the mould benevolence 2, cavity one side port is screw head portion shaping mouth 3, the opposite side is screw pole portion shaping mouth 4, the outer port of head shaping mouth is the inside concave yield of toper, outer port and interior port are coaxial setting, outer port diameter is greater than interior port diameter, the port wall of interior port forms for a plurality of "V" type combination, and set up three horn shape recess 3a between interior port and outer port, three horn shape recess 3a set up the opening part of "V" type of interior port wall, three horn shape recess 3a in head shaping mouth are equipped with four, be "ten" word form and arrange, and the tip of triangle is arranged in outer port department.

The outer port and the inner port of the screw rod part forming port 4 are also coaxially arranged, the inner wall of the outer port connected with the inner port is provided with a groove, the groove comprises a triangular notch 4a and an arc-shaped notch 4b, the triangular notch 4a and the arc-shaped notch 4b are four, and each arc-shaped notch 4b is arranged between the two triangular notches 4a and integrally combined to form a square-shaped arrangement.

Simultaneously, in order to increase frictional force, still be equipped with strip notch 6 in screw pole portion shaping mouth 4 week side, when stamping die, can have relative buffering effect, this strip notch 6 is annular interval around screw pole portion shaping mouth 4 and arranges, and six at least have been seted up to strip notch 6.

Because the mould needs to stabilize at the in-process of punching the type, consequently be equipped with two notches 5 on the outer wall of mould body 1 one side and be used for anchor clamps or other equipment to fix the mould when the punching press, notch 5 is triangle-shaped and the edge is arc, and the inside recess in limit that the triangle prong of notch 5 corresponds presents a platform 5a, be provided with two notches 5 of corresponding position because the branch is the independent punching press of both sides when punching press screw head and slot part shape, the upset mould carries out the punching press of opposite side after one side punching press is accomplished promptly, consequently, need two notches 5.

In order to increase the strength of the die, the inner walls of the die core 2 and the screw rod part forming cavity are made of tungsten steel materials, and other parts are made of common steel, so that high-quality materials are saved to a certain extent, the manufacturing cost is reduced, the wear-resisting property of the product is improved, and the service life is prolonged.

The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and the skilled in the art can carry out the common changes and replacements within the technical solution of the present invention.

Claims

1. The utility model provides a screw forming die, includes the mould body, its characterized in that: the die comprises a die body and is characterized in that the middle of the die body is a die core, a screw rod part forming cavity is arranged in the die core, a port on one side of the cavity is a screw head part forming port, the other side of the cavity is a screw rod part forming port, an outer port of the head part forming port is in a conical inward concave shape, the outer port and the inner port are coaxially arranged, a port wall of the inner port is in a V shape, a triangular groove is arranged between the inner port and the outer port, the triangular groove is arranged at an opening of the V shape of the inner port wall, the outer port and the inner port of the screw rod part forming port are coaxially arranged, a notch is formed in the inner wall of the outer port connected with the inner port, the notch comprises a triangular notch and an arc notch, and strip notches are further arranged on the periphery of the screw rod part forming port.

2. The screw forming die of claim 1, wherein: four triangular grooves are arranged in the head forming port and are distributed in a cross shape, and the tips of the triangles are arranged at the outer port.

3. A screw forming die according to claim 2, wherein: the screw rod part forming opening is internally provided with four triangular notches and four arc-shaped notches, and the arc-shaped notches are arranged between the two triangular notches and are arranged in a shape like a Chinese character 'kou'.

4. A screw forming die according to claim 3, wherein: the strip-shaped notches are arranged at intervals in an annular mode around the forming opening of the screw rod part, and at least six strip-shaped notches are formed.

5. The screw forming die of claim 1, wherein: the outer wall of one side of the die body is provided with two notches, each notch is triangular, the edge of each notch is arc-shaped, and the corresponding edge of the triangular tip of each notch is recessed inwards to form a platform.

6. The screw forming die of claim 1, wherein: the inner walls of the die core and the screw rod part forming cavity are made of tungsten steel materials.