CN202447571U

CN202447571U - Split forging die

Info

Publication number: CN202447571U
Application number: CN201120557914XU
Authority: CN
Inventors: 吴荣彬; 苏标庚
Original assignee: XIAMEN HENGYAO METAL CO Ltd
Current assignee: XIAMEN HENGYAO METAL CO Ltd
Priority date: 2011-12-27
Filing date: 2011-12-27
Publication date: 2012-09-26
Anticipated expiration: 2021-12-27

Abstract

The utility model discloses a split forging die, which consists of an upper die body, a lower die body and a die holder, wherein the upper and lower die bodies are superposed, and are accommodated in the die holder; and a concave-convex jointing positioning structure is correspondingly formed on the attachment surfaces of the upper and lower die bodies, and is formed by attaching a plurality of concave parts and convex parts, which are arranged at intervals on the attachment surfaces of the upper and lower die bodies in a continuous surrounding way respectively. Furthermore, each of the upper and lower die bodies is formed by attaching two halved modules. Compared with the prior art, the split forging die has the advantages that each die body of the die adopts a split structure, so that the problem of nut machining accuracy reduction caused by the deformation of the die bodies in a forging process can be effectively reduced; and the concave-convex jointing positioning structure is adopted for the attachment surfaces of the upper and lower die bodies, so that the problem of slip dislocation between the attachment surfaces of the upper and lower die bodies in the prior art is solved, the attachment tightness of the attachment surfaces of the upper and lower die bodies is effectively improved, and the reject rate is lowered.

Description

Mould is used in split type forging

Technical field

The utility model relates to the metal forging manufacture field, relates to a kind of architecture advances of cold forging chrysanthemum mould in particular.

Background technology

Cold forging chrysanthemum die device as shown in Figure 1, this mould are located in the die holder 3 with lower mold body 2 by a stacked upper die body 1 that forms to be formed.Because the abutment face of upper die body 1 and lower mold body 2 is the plane, in forging process, be prone to the phenomenon of the smooth and dislocation of skidding of the abutment face oil extraction of upper die body 1 and lower mold body 2, cause the percent defective of nut processing high.

The utility model content

The purpose of the utility model is to provide a kind of split type forging to use mould.The nut precision of forging processing through this mould is high, and die life and yield rate significantly promote.

In order to reach above-mentioned purpose, the solution of the utility model is:

Mould is used in split type forging, and this mould is located in the die holder by a stacked upper die body that forms and lower mold body to be formed, the concavo-convex butt joint location structure of the corresponding formation of the abutment face of said upper die body and lower mold body.

Further, described concavo-convex butt joint location structure is that the recess established by several equidistant continuous loops that are arranged at respectively on upper die body and the lower mold body abutment face and protuberance recline and form.

Further, described upper die body and lower mold body recline by two modules of half-and-half separating and form.

Further, be planar portions between adjacent two recesses or the protuberance on upper die body or the lower mold body abutment face.

The usefulness of the utility model is:

The die body of the utility model mould adopts split-type structural, can effectively reduce the problem that causes the nut machining accuracy to reduce because of the die body distortion in the forging process; Upper die body and lower mold body abutment face adopt concavo-convex butt joint location structure, have solved the smooth and problem of misalignment of skidding of oil extraction between the upper die body and lower mold body abutment face in the prior art, effectively improve the compactness that upper die body and lower mold body abutment face are fitted, the minimizing percent defective.

Description of drawings

Fig. 1 is the structural representation of prior art cold forging chrysanthemum die device;

Fig. 2 is the three-dimensional decomposition texture sketch map one of the split type forging of the utility model with mould;

Fig. 3 is the three-dimensional decomposition texture sketch map two of the split type forging of the utility model with mould;

Fig. 4 is the section combining structure sketch map of the split type forging of the utility model with mould.

The specific embodiment

In order further to explain the technical scheme of the utility model, come the utility model is set forth in detail through specific embodiment below.

Mould is used in split type forging as shown in Figure 4, and this mould is located in the die holder 3 with lower mold body 2 by a stacked upper die body 1 that forms to be formed.The concavo-convex butt joint location structure of the corresponding formation of the abutment face of said upper die body 1 and lower mold body 2.

Upper die body 1 as shown in Figure 2, its abutment face are provided with the protuberance 4 that several equidistant continuous loops are established, and between two adjacent protuberances 4, are planar portions 5.Lower mold body 2 as shown in Figure 3, its abutment face are provided with the recess 6 that several equidistant continuous loops are established, and between two adjacent recesses 6, are planar portions.Described protuberance 4 reclines with recess 6 correspondences and forms concavo-convex butt joint location structure.Certainly, the utility model also can be arranged at recess on the upper die body abutment face, and is corresponding, and protuberance is arranged on the lower mold body on the abutment face.

As shown in Figure 2, the upper die body 1 and the lower mold body 2 of the utility model recline by two modules of half-and-half separating and form.

Product form of the foregoing description and graphic and non-limiting the utility model and style, the those of ordinary skill of any affiliated technical field all should be regarded as not breaking away from the patent category of the utility model to its suitable variation or modification of doing.

Claims

1. mould is used in split type forging, it is characterized in that: this mould is located in the die holder by a stacked upper die body that forms and lower mold body to be formed, the concavo-convex butt joint location structure of the corresponding formation of the abutment face of said upper die body and lower mold body.

2. mould is used in split type forging as claimed in claim 1, it is characterized in that: described concavo-convex butt joint location structure is that the recess established by several equidistant continuous loops that are arranged at respectively on upper die body and the lower mold body abutment face and protuberance recline and form.

3. mould is used in according to claim 1 or claim 2 split type forging, and it is characterized in that: described upper die body and lower mold body recline by two modules of half-and-half separating and form.

4. mould is used in split type forging as claimed in claim 2, it is characterized in that: be planar portions between adjacent two recesses or the protuberance on upper die body or the lower mold body abutment face.

5. mould is used in split type forging as claimed in claim 3, it is characterized in that: be planar portions between adjacent two recesses or the protuberance on upper die body or the lower mold body abutment face.