CN211758281U

CN211758281U - Vertical column cylinder bottom die

Info

Publication number: CN211758281U
Application number: CN201922272676.7U
Authority: CN
Inventors: 许慧杰; 冯来庆; 苏昂; 王腾飞; 秦冰超; 康赛赛; 伊春见
Original assignee: Zhengzhou Coal Machine Green Material Technology Co ltd
Current assignee: Zhengzhou Coal Machine Green Material Technology Co ltd
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2020-10-27
Anticipated expiration: 2029-12-18

Abstract

The utility model provides a stand cylinder bottom mould, mould cavity is spherical die cavity on the mould, its lower mould is core and terminal surface die cavity, both sides at mould cavity are equipped with "ear" die cavity, lower mould cavity terminal surface is H with "ear" planar distance, the distance of lower mould cavity terminal surface and the circular arc top of "ear" die cavity is H, mould is radius for the hemispheroid of R on the mould, the "ear" die cavity is the circular arc of radius R, centre of sphere and centre of a circle between them are located same vertical axis, the centre of a circle O of "ear" die cavity_rIs positioned at the center of the hemisphere O in the middle of the die cavity_RBelow (c). The beneficial effects are as follows: the machining allowance is reduced, so that the ear part which is required by the use can be ensured only by clamping a plurality of procedures in the prior art for a plurality of times, and the addition of the machining allowance is not needed at presentThe labor can directly meet the requirement of use, the processing procedures are reduced, the working efficiency is improved, the processing period of the movable part is shortened, the economic benefit of a company is improved, and the labor intensity of workers is reduced.

Description

Vertical column cylinder bottom die

Technical Field

The utility model relates to a stand jar field especially indicates a stand jar bottom mould.

Background

At present, all upright column cylinder bottoms with semicircular lugs have the problem that partial residues are left at the joint of the lug machined and the maximum excircle under the original forging process and the existing machining technology and conditions.

The machining allowance of the semicircular lug concave surface and the upper plane of the cylinder bottom of the upright column is large, multiple processes are needed for clamping for multiple times, and after machining, the joint of the lug upper plane and the maximum excircle of the cylinder bottom has partial residues, so that the parts cannot be removed according to the existing machining process, and the appearance quality of a forged piece is influenced; and because prior art processes are many, cause the workpiece machining cycle long.

SUMMERY OF THE UTILITY MODEL

The utility model provides a solve the problem that exists among the prior art, provide a stand cylinder bottom mould.

The technical scheme of the utility model is realized like this: a column cylinder bottom mold, comprising: the die comprises an upper die and a lower die, wherein an upper die cavity and a lower die cavity are respectively arranged in the upper die and the lower die, the upper die cavity and the lower die cavity are assembled to form a die cavity, a blank is placed into the die cavity to be forged, the upper die cavity is a spherical cavity, the lower die cavity is a core and end face cavity, the two sides of the die cavity are provided with lug cavities, the distance between the end face of the lower die cavity and the plane of the lug is H, the distance between the end face of the lower die cavity and the arc top of the lug cavity is H, the upper die of the die is a hemisphere with the radius of R, the lug cavities are arcs with the radius of R, the spherical centers and the circle centers of the lugs are positioned on the same vertical axis, and the circle center O of the lug cavity is positioned on the same vertical axis_rA hemispherical spherical center O positioned in the middle of the die cavity_RBelow (c).

Center of circle O_rLocated at the center of the sphere O_R4mm directly below.

The utility model has the advantages that:

1. the processing allowance is reduced, so that the ear part required by the use can be ensured only by clamping a plurality of procedures in the original process for a plurality of times, the use can be directly met without processing, unnecessary processing procedures are saved, the working efficiency is improved, the processing period of the movable part is shortened, the economic benefit of a company is improved, and the labor intensity of workers is reduced;

2. the residual parts which cannot be processed in the original process at the joint of the cylinder bottom lug and the maximum excircle are eliminated fundamentally, and the appearance quality of the workpiece is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, 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 schematic structural view of an upper mold;

FIG. 2 is a schematic structural view of a lower mold;

FIG. 3 is a view from A-A of the lower mold;

FIG. 4 is a view of the lower mold taken in the direction B-B.

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 without any creative effort belong to the protection scope of the present invention.

As shown in fig. 1-4The utility model provides a stand cylinder bottom mould, the mould includes mould 1 and lower mould 2, mould cavity 3 and lower mould cavity 4 have been seted up respectively in mould 1 and lower mould 2, constitute mould cavity 5 after mould cavity 3 and lower mould cavity 4 compound die, the blank is put into mould cavity 5 and is forged, mould cavity 5 middle part is spherical cavity, its lower extreme is terminal surface 6, be equipped with "ear" die cavity 7 in the both sides of mould cavity 5, "the distance of ear" die cavity 7 upper surface 72 and terminal surface 6 is H, "the distance of the circular arc top 71 of ear" die cavity 7 and terminal surface 6 is H, "the radius is hemisphere 8 of R in mould cavity 5 middle part, mark as the R ball," ear "die cavity 7 is the circular arc die cavity of radius R, mark as circular arc R, both the centre of sphere and the centre of a circle lie in the same vertical axis, the O centre of a circle of ear" die cavity 7_rA hemisphere 8 positioned at the center of the mold cavity 5 is centered at O_RBelow (c).

Center of circle O_rLocated at the center of circle O_R4mm directly below.

Designing a mould at the arc part:

when the original die is designed, the r circular arc is consistent with the part, namely the r circular arc and the part are concentric, after the forge piece is machined, the distance from the bottom of the r circular arc to the end face 6 is h + (4-6), and the circular arc is required to be machined at the later stage;

the center of the R arc is moved downwards by 4mm relative to the center of the R sphere by the die, and the size from the bottom of the arc to the end face 6 is h +/-2 after the forge piece is machined.

When the original mould is designed, the distance from the upper plane of the lug to the end surface 6 is H-3, and the part needs to be processed at the later stage;

the die moves the upper plane of the lug downwards by 4mm relative to the part, namely the distance from the upper plane of the lug to the end surface 6 is H +4, and the distance from the upper plane of the lug to the end surface 6 after the forge piece is machined is H +/-2, so that the forge piece does not need to be machined.

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. A column cylinder bottom mold, comprising: the mold comprises an upper mold and a lower moldThe mould cavity and the lower mould cavity have been seted up respectively in last mould and lower mould, constitute the mould cavity after going up mould cavity and lower mould cavity compound die, and the blank is put into the mould cavity and is forged its characterized in that: the mould is characterized in that the mould upper mould cavity is a spherical cavity, the lower mould of the mould upper mould cavity is a core and end face cavity, the two sides of the mould cavity are provided with lug cavities, the distance between the end face of the lower mould cavity and the plane of the lug is H, the distance between the end face of the lower mould cavity and the arc top of the lug cavity is H, the mould upper mould is a hemisphere with the radius of R, the lug cavity is an arc with the radius of R, the spherical centers and the circle center of the lug cavities are positioned on the same vertical axis, and the circle center O of the lug cavity is positioned on the same vertical axis_rA hemispherical spherical center O positioned in the middle of the die cavity_RBelow (c).

2. The pillar cylinder bottom mold according to claim 1, wherein: center of circle O_rLocated at the center of the sphere O_R4mm directly below.