CN216881329U

CN216881329U - Tapered end and forming pressure head assembly thereof

Info

Publication number: CN216881329U
Application number: CN202122833876.2U
Authority: CN
Inventors: 魏来
Original assignee: Yongkang Yuejia Standard Co ltd
Current assignee: Yongkang Yuejia Standard Parts Co.,Ltd.
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2022-07-05
Anticipated expiration: 2031-11-18

Abstract

The utility model relates to a lock and a molding pressure head assembly thereof, which comprise a lock body with an integral structure, wherein one end of the main body is provided with an oval shaped port, the orifice of a blind hole arranged in the lock body is oval in shape matched with the end part of the shaped port, the port of a semi-finished shaped port is round, the orifice of the blind hole is round, and the oval shaped end part of the shaped port is pressed by the pressure head assembly.

Description

Tapered end and forming pressure head assembly thereof

Technical Field

The utility model relates to a lock head and a forming pressure head assembly thereof.

Background

As shown in fig. 4, 5, and 6, the first lock head 1001 is formed by splicing two parts, namely, a first main body 1002 and a first molded port 1003 with an oval shaped end, wherein a step hole 1006 is formed at the end of a blind hole of the first main body 1002, a connecting step 1005 is formed at the rear end of the first molded port 1003, after the connecting step 1005 is sleeved with the step hole 1006, the outer circumference of the contact surface is fixed by welding, and a circle of welding ring 1004 is formed on the surface, so that a finished part of the first lock head 1001 is formed, and the drawback of the structural mode of the first lock head 1001, which is similar to the welding after assembly, is that: the first main body 1002 and the first notch 1003 are two independent parts which are processed respectively and then connected, so that the required working hours are large, and the material consumption is correspondingly increased; secondly, because the first section opening 1003 is also a thin-walled part, the hole wall of the first main body 1002 is relatively thick, two parts with different thicknesses are difficult to weld, the welding temperature is high, and the high-temperature deformation probability of the first section opening 1003 is extremely high; thirdly, the structure of concatenation formula has also influenced the link intensity reduction of tapered end 1001 in step.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a lock and a molding pressure head assembly thereof in order to solve the problems, and the lock comprises a lock body with an integral structure, wherein one end of the main body is provided with an oval-shaped port, the orifice of a blind hole arranged in the lock body is oval in shape matched with the end of the shaped port, the port of a semi-finished shaped port is round, the orifice of the blind hole is round, and the oval-shaped end of the shaped port is pressed by the pressure head assembly.

The utility model achieves the aim through the following technical scheme, and the lock and the forming pressure head assembly thereof comprise a lock body with an integral structure, wherein one end of the main body of the lock body is provided with a shaped opening, the end part of the shaped opening is oval, a blind hole is arranged in the lock body, and an orifice of the blind hole is oval in shape which is consistent with the shape of the end part of the shaped opening 3.

The lock head body is formed by subsequent forming and processing of a semi-finished product body, one end of the semi-finished product body main body with the built-in blind hole is a directly-connected integrated semi-finished product type opening, the port of the semi-finished product type opening is circular, and the orifice of the blind hole is circular.

The pressure head assembly formed by the die orifice in an extrusion mode is composed of a forming pressure head and an inner guide rod, the middle step of the forming pressure head is a connecting shaft, the other end of the middle step is provided with a forming pressing block, and a forming cavity body in the forming pressing block is in accordance with the shape of the die orifice;

a cone is arranged at one end of a cylindrical guide shaft of the inner guide rod, the small end of the cone is connected with a guide head with a round angle, a profile shaft is arranged at the other end of the guide shaft, and the profile of the profile shaft conforms to the specification of an oval orifice of the blind hole.

The utility model has the beneficial effects that:

the utility model has an integrated structure, fundamentally solves the problem of a lock head-splicing structure formed by split welding, and has the advantages of high strength, small deformation and reduced processing cost.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

FIG. 2 is a right side view of FIG. 1;

FIG. 3 is a left side view of FIG. 1;

FIG. 4 is a view of the blank of FIG. 1;

FIG. 5 is a schematic view of the first lock head;

FIG. 6 is an exploded view of FIG. 5;

FIG. 7 is a schematic view of a forming ram;

FIG. 8 is a schematic view of an inner guide rod;

fig. 9 is a right side view of fig. 8.

In the figure: the tapered end comprises a tapered end body 1, a main body 2, a notch 3, a blind hole 4, a semi-finished body 1a, a semi-finished notch 3a, a tapered end I1001, a main body I1002, a notch I1003, a welding ring 1004, a connecting step 1005, a step hole 1006, a forming pressure head 1007, a connecting shaft 1008, a middle step 1009, a forming pressing block 1010, an inner guide rod 1011, a shaped shaft 1012, a guide shaft 1013, a forming cavity 1014, a guide head 1015 and a cone 1016.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

Embodiment 1 please refer to fig. 1-3, a lock and a forming ram assembly thereof, comprising a lock body 1 with an integral structure, wherein one end of a main body 2 of the lock body 1 is provided with a shaped opening 3, the end of the shaped opening 3 is oval, a blind hole 4 is arranged in the lock body 1, and the orifice of the blind hole 4 is oval in shape corresponding to the end of the shaped opening 3.

As shown in fig. 5 and 6, the lock body 1 is formed by subsequent molding of a semi-finished body 1a, one end of a main body 2 of the semi-finished body 1a, in which a blind hole 4 is formed, is a directly connected and integrated semi-finished orifice 3a, a port of the semi-finished orifice 3a is circular, and an orifice of the blind hole 4 is circular.

As shown in fig. 7, a middle step 1009 of the forming press head 1007 is a connecting shaft 1008, the other end of the middle step 1009 is provided with a forming press block 1010, and a forming cavity 1014 arranged in the forming press block 1010 is shaped to conform to the shape of the die opening 3;

as shown in fig. 8 and 9, a cone 1016 is arranged at one end of a cylindrical guide shaft 1013 of the inner guide rod 1011, the small end of the cone 1016 is connected with a rounded guide head 1015, a profiled shaft 1012 is arranged at the other end of the guide shaft 1013, and the profile of the profiled shaft 1012 conforms to the specification of an elliptical hole of the blind hole 4.

When the die orifice 3 is formed, the guide head 1015 of the inner guide rod 1011 is downwards placed into the main body 2 of the semi-finished product body 1a and the blind hole 4 of the die orifice I1003, the die shaft 1012 is upwards and located at the axial position of the die orifice I1003 of the blind hole 4, the total length of the inner guide rod 1011 is the same as the depth of the blind hole 4, the forming cavity 1014 of the forming pressure head 1007 is downwards pressed at a low speed by using special equipment, the die orifice I1003 is gradually extruded and formed after the forming cavity 1014 contacts the circular die orifice I1003, the extruded die orifice I1003 meets the technical requirement of the die orifice 3 ellipse of the lock head body 1, the blind hole 4 in the die orifice I1003 is synchronously deformed, the requirement of the elliptical orifice of the blind hole 4 of the lock head body 1 is met, and the die shaft 1012 in the blind hole 4 achieves the function of radial limiting.

The guide shaft 1013, the guide head 1015 and the cone 1016 of the inner guide rod 1011 are also elliptical, and the maximum diameter of the connecting ellipse is matched with the profile shaft 1012, so that the inner guide rod 1011 can be conveniently taken out from the blind hole 4 deformed at the hole opening after the profile opening 3 of the lock head body 1 is formed by elliptical extrusion.

The lock body 1 with the integrated structure fundamentally solves the structure of splicing the lock formed by split welding, and has the advantages of high strength, small deformation and reduced processing cost.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it is therefore desired that the present embodiments be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, without any reference thereto being construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a tapered end, includes integrated structure's tapered end body (1), its characterized in that: the novel lock is characterized in that a molded opening (3) is formed in one end of a main body (2) of the lock body (1), the end portion of the molded opening (3) is oval, a blind hole (4) is formed in the lock body (1), and an orifice of the blind hole (4) is oval in shape corresponding to the end portion of the molded opening (3).

2. The lock cylinder according to claim 1, wherein: the lock head body (1) is formed by the subsequent forming and processing of a semi-finished product body (1a), one end of a main body (2) of the semi-finished product body (1a) with a built-in blind hole (4) is directly connected with an integrated semi-finished product type opening (3a), the port of the semi-finished product type opening (3a) is circular, and the orifice of the blind hole (4) is circular.

3. A ram assembly, includes shaping ram (1007) and interior guide arm (1011), its characterized in that: the middle step (1009) of the forming pressure head (1007) is a connecting shaft (1008), the other end of the middle step (1009) is provided with a forming pressing block (1010), and the shape of a forming cavity (1014) arranged in the forming pressing block (1010) conforms to the shape of the forming opening (3);

a cone (1016) is arranged at one end of a cylindrical guide shaft (1013) of the inner guide rod (1011), the small end of the cone (1016) is connected with a guide head (1015) with a round corner, a molding shaft (1012) is arranged at the other end of the guide shaft (1013), and the appearance of the molding shaft (1012) conforms to the specification of an oval orifice of the blind hole (4).