CN210848142U

CN210848142U - Novel core rod

Info

Publication number: CN210848142U
Application number: CN201921785171.4U
Authority: CN
Inventors: 王仁东; 张含明; 张利锋; 吕玲玲
Original assignee: ZHEJIANG ZHONGJI FOUNDRY AND FORGING CO Ltd
Current assignee: ZHEJIANG ZHONGJI FOUNDRY AND FORGING CO Ltd
Priority date: 2019-10-23
Filing date: 2019-10-23
Publication date: 2020-06-26
Anticipated expiration: 2029-10-23

Abstract

The utility model provides a novel core rod, includes the toper barred body of rolling the expansion core rod, the columniform extension section of one end shaping of toper barred body major diameter, and the one end shaping that the extension section deviates from the toper barred body has conical rolling section, the one end shaping that the rolling section deviates from the extension section has columniform extension section. The structure of the existing ring rolling core rod is modified, and the service life of the ring rolling core rod can be prolonged.

Description

Novel core rod

The technical field is as follows:

the utility model relates to a technical field of equipment that expands by rolling, more specifically say and relate to a novel plug.

Background art:

the rotary forging method for making the required ring-shaped member by gradually enlarging the diameter of the ring-shaped blank in the hole pattern formed by the rolling roller and the core roller and forming the ring-shaped blank is also called reaming or rolling. The core roller is also called as a core rod for short, the existing core rod is shown in fig. 1, the core rod comprises a conical rod body, a conical transition section 11 ' is formed at one end of the conical rod body with a large diameter, a cylindrical extension section 12 ' is formed at the end of the transition section 11 ', and a conical rolling section 13 ' (namely a rolling section) is formed at the end of the extension section 12 ', and the main stress point of the core rod with the structure is the rolling section 13 ' in the rolling process, because the diameter of the extension section 12 ' is smaller than that of the rolling section 13 ', the extension section 12 ' is easy to break in the long-term rolling process.

The utility model has the following contents:

the utility model aims at providing a novel core rod aiming at the defects of the prior art, which can prolong the service life of the ring rolling core rod.

The utility model provides a novel core rod, includes the toper barred body of rolling the expansion core rod, the columniform extension section of one end shaping of toper barred body major diameter, and the one end shaping that the extension section deviates from the toper barred body has conical rolling section, the one end shaping that the rolling section deviates from the extension section has columniform extension section.

Preferably, the inclination direction of the conical generatrix on the conical rod body is opposite to the inclination direction of the conical generatrix on the rolling section.

Preferably, the conical angle of the conical rod body is smaller than that of the rolling section.

Preferably, the length of the tapered rod body is greater than the total length of the rolling section, the lengthening section and the extending section.

Preferably, the length of the rolling section is greater than that of the extension section, and the length of the extension section is greater than that of the extension section.

Preferably, a bottom threaded hole is formed in the end surface of the tapered rod body, which is away from one end of the elongated section.

The beneficial effects of the utility model reside in that:

the structure of the existing ring rolling core rod is modified, and the service life of the ring rolling core rod can be prolonged.

Description of the drawings:

FIG. 1 is a schematic structural view of a conventional mandrel;

FIG. 2 is a schematic three-dimensional structure of the present invention;

fig. 3 is a schematic view of the present invention in a partial sectional view.

In the figure: 1. a tapered rod body; 11. a lengthening section; 12. a rolling expansion section; 13. an extension section; 14. a bottom threaded hole; 11', a transition section; 12', an extension section; 13' and a rolling section.

The specific implementation mode is as follows:

example (b): as shown in fig. 2 to 3, the novel core rod comprises a tapered rod body 1 of a rolled core rod, a cylindrical extended section 11 is formed at one end of the tapered rod body 1 with the large diameter, a conical rolled section 12 is formed at one end of the extended section 11, which is far away from the tapered rod body 1, and a cylindrical extended section 13 is formed at one end of the rolled section 12, which is far away from the extended section 11.

Preferably, the inclination direction of the conical generatrix on the conical rod body 1 is opposite to the inclination direction of the conical generatrix on the ring-out section 12.

Preferably, the conical angle of the conical rod body 1 is smaller than that of the rolling section 12.

Preferably, the length of the tapered rod body 1 is greater than the total length of the rolling section 12, the lengthening section 11 and the extension section 13.

Preferably, the length of the expanded section 12 is greater than that of the extended section 11, and the length of the extended section 11 is greater than that of the extended section 13.

Preferably, a bottom threaded hole 14 is formed on an end surface of the tapered rod body 1 facing away from the end of the elongated section 11.

The working principle is as follows: the utility model discloses a neotype plug, the structure of plug is shown in figure 2, 3, and its plug will expand the direction of section 12 and commutate, can save the structure of extension segment 12 'on the original plug to in the course of working, can not take place the cracked problem of extension segment 12', can effectively prolong the life-span of accepting of plug.

The examples are intended to be illustrative, but not limiting, of the invention. The embodiments can be modified by those skilled in the art without departing from the spirit and scope of the present invention, and therefore, the scope of the present invention should be determined by the appended claims.

Claims

1. The utility model provides a novel plug, includes the toper barred body (1) of ring rolling plug which characterized in that: one end of the large diameter of the conical rod body (1) is formed into a cylindrical extension section (11), one end of the extension section (11) departing from the conical rod body (1) is formed into a conical rolling section (12), and one end of the rolling section (12) departing from the extension section (11) is formed into a cylindrical extension section (13).

2. The new mandrel as claimed in claim 1, wherein: the inclination direction of the conical generatrix on the conical rod body (1) is opposite to the inclination direction of the conical generatrix on the rolling section (12).

3. The new mandrel as claimed in claim 2, wherein: the conical angle of the conical rod body (1) is smaller than that of the rolling section (12).

4. A new mandrel according to claim 3, characterized in that: the length of the conical rod body (1) is greater than the total length of the rolling section (12), the lengthening section (11) and the extension section (13).

5. The new mandrel as claimed in claim 4, wherein: the length of the rolling section (12) is greater than that of the lengthened section (11), and the length of the lengthened section (11) is greater than that of the extending section (13).

6. The new mandrel as claimed in claim 1, wherein: a bottom threaded hole (14) is formed in the end face of one end, away from the lengthened section (11), of the conical rod body (1).