CN210475528U

CN210475528U - Valve seat ring forming die

Info

Publication number: CN210475528U
Application number: CN201921203450.5U
Authority: CN
Inventors: 冯友蓬; 严云飞; 冯子超
Original assignee: Jiujiang Tianshi Powder Products Co Ltd
Current assignee: Jiujiang Tianshi Powder Products Co Ltd
Priority date: 2019-07-29
Filing date: 2019-07-29
Publication date: 2020-05-08
Anticipated expiration: 2029-07-29

Abstract

The utility model discloses a valve seat insert forming die, this mould include the bed die, the bed die top is equipped with two upper punching dies, the bed die below is equipped with two lower punching dies, the bed die middle part is equipped with two through-holes, be equipped with the plug in the inside cavity of lower punching die. The utility model discloses a valve seat circle forming die is according to the coefficient of expansion of the used material of product, with shape, the size design of product into the shape and the size of mould to reduce the back finishing allowance of product, practice thrift the raw and other materials use of product, reach reduction in production cost's purpose.

Description

Valve seat ring forming die

Technical Field

The utility model relates to a valve seat insert makes technical field, particularly, relates to a valve seat insert forming die.

Background

The valve seat insert is an important accessory of an automobile engine, the valve seat insert is usually pressed by a universal mold at present, and when the valve seat insert is produced by the conventional universal mold, the problems of large machining allowance of products, more waste in raw material use and long post-machining period exist.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned technical problem among the correlation technique, the utility model provides a valve seat insert forming die can overcome prior art's the aforesaid not enough.

In order to achieve the technical purpose, the technical scheme of the utility model is realized as follows:

the utility model provides a valve seat insert forming die, includes the bed die, the bed die top is equipped with two upper punch dies, the bed die below is equipped with two lower punch dies, the bed die middle part is equipped with two through-holes, be equipped with the plug in the inside cavity of lower punch die.

Further, the shape of the head of the upper punching die is the same as the shape of the inner hole of the valve seat ring.

Furthermore, the upper punching die and the lower punching die are coaxially arranged with the through hole.

Further, the length of the core rod is greater than the length of the lower punch die.

The utility model has the advantages that: the utility model discloses a valve seat circle forming die is according to the coefficient of expansion of the used material of product, with shape, the size design of product into the shape and the size of mould to reduce the back finishing allowance of product, practice thrift the raw and other materials use of product, reach reduction in production cost's purpose.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a perspective view of a valve seat ring forming mold according to an embodiment of the present invention;

FIG. 2 is a front view of a valve seat insert forming mold according to an embodiment of the present invention;

FIG. 3 is a side view of a valve seat insert forming mold according to an embodiment of the present invention;

FIG. 4 is a top view of a valve seat insert forming mold according to an embodiment of the present invention;

fig. 5 is a schematic view of a female mold according to an embodiment of the present invention;

fig. 6 is a cross-sectional view a-a of a female mold according to an embodiment of the invention;

fig. 7 is a schematic view of an upper punch die according to an embodiment of the present invention;

FIG. 8 is a schematic view of a lower die separated from a core rod in accordance with an embodiment of the present invention;

FIG. 9 is a schematic illustration of a valve seat insert according to an embodiment of the present invention;

in the figure: 1. the device comprises a female die, 2, an upper punch die, 3, a lower punch die, 4, a through hole, 5, a head, 6, a cavity, 7, a core rod, 8 and a valve seat ring.

Detailed Description

The technical solutions in the embodiments 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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.

As shown in fig. 1-9, according to the utility model discloses a valve seat insert forming die, including bed die 1, bed die 1 top is equipped with two upper punch 2, bed die 1 below is equipped with two lower punch 3, bed die 1 middle part is equipped with two through-holes 4, be equipped with plug 7 in the cavity 6 of lower punch 3 inside.

The shape of the head 5 of the upper die 2 is the same as the shape of the inner bore of the valve seat 8. The upper punch 2 and the lower punch 3 are coaxially arranged with the through hole 4. The length of the core rod 7 is greater than the length of the lower die 3.

For the convenience of understanding the above technical solutions of the present invention, the above technical solutions of the present invention are explained in detail through specific use modes below.

When the valve seat insert is used specifically, the core rod 7 is matched with the lower punch die 3 (the matching tolerance is 0.005 mm), the upper punch die 2 and the lower punch die 3 are both matched with the female die 1 (the matching tolerance is 0.005 mm), and the shape of the head part 5 of the upper punch die of the valve seat insert is calculated according to the shape of an inner hole of a product and the expansion coefficient of a used raw material. The molding process of the mold is as follows: the core rod 7 is matched into the cavity 6 of the lower punch die, the female die 1 is filled with powder, and then the upper punch die 2 and the lower punch die 3 are pressed into the female die 1 from the upper direction and the lower direction simultaneously to form the air outlet valve seat ring blank.

To sum up, with the help of the technical scheme of the utility model, according to the coefficient of expansion of the used material of product, with shape, the size design of product into the shape and the size of mould to reduce the back finishing allowance of product, practice thrift the raw and other materials use of product, reach reduction in production cost's purpose.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a valve seat insert forming die, its characterized in that includes bed die (1), bed die (1) top is equipped with two upper punch (2), bed die (1) below is equipped with two lower punch (3), bed die (1) middle part is equipped with two through-holes (4), be equipped with in cavity (6) of lower punch (3) inside plug (7).

2. A valve seat insert forming die according to claim 1, wherein the shape of the head portion (5) of the upper punch die (2) is the same as the shape of the inner bore of the valve seat insert.

3. A valve seat insert forming die according to claim 1, wherein the upper die (2) and the lower die (3) are arranged coaxially with the through hole (4).

4. A valve seat insert forming die according to claim 1, characterized in that the length of the core rod (7) is greater than the length of the lower punch die (3).