CN201755658U

CN201755658U - Die

Info

Publication number: CN201755658U
Application number: CN2010201658186U
Authority: CN
Inventors: 张宝奎; 张传文
Original assignee: QUANJIAO COUNTY ZHONGXIN PRECISION MOULD CO Ltd
Current assignee: QUANJIAO COUNTY ZHONGXIN PRECISION MOULD CO Ltd
Priority date: 2010-04-21
Filing date: 2010-04-21
Publication date: 2011-03-09
Anticipated expiration: 2020-04-21

Abstract

The utility model discloses a die, comprising a middle die, an upper external punch die and a lower punch die, wherein the middle die has a central die hole arranged in the center, the upper external punch die is inserted in the central die hole from the upper side of the middle die, the lower punch die is inserted in the central die hole from the lower side of the middle die, and a cavity is formed by the gap between the punching surfaces of the upper external punch die and the lower punch die; the upper external punch die has an external punching die hole arranged in the center, a hollow upper inner punch die is inserted in the external punching hole, a lower punch die hole corresponding to the upper external punching die hole is arranged on the lower punch die, and a core rod is inserted in the lower punch die hole on the lower punch die and inserted into the central hole of the upper inner punch die after penetrating through the central die hole. The die is simple in structure, easy in punching operation, and suitable for stamping workpiece with central holes in the center and stepped surface on the top end.

Description

Mould

Technical field:

The utility model relates generally to the diel field.

Background technology:

When using stamping machine to carry out punching press, a cover diel all can be installed in it, every cover diel correspondence stamps out a kind of part.The part that has has centre bore, and the upper surface of this part is provided with step surface, therefore, need the diel supporting with it realize punch forming.

The utility model content:

The utility model purpose is exactly in order to remedy the defective of prior art, and a kind of simple in structure, mould that punching press is effective is provided.

The utility model is achieved through the following technical solutions:

Mould is characterized in that: include middle mould, go up outer punch die and following punch die, described in the mould center have middle nib, described outer punch die therefrom in the insertion of mould upside in the nib; Described punch die down therefrom mould downside inserts in the described middle nib, leaves the space between the stamping surface of described outer punch die and the stamping surface of following punch die and forms die cavity, and the described outer punch die center of has the outwash nib, is fitted with the interior punch die of going up of hollow in the described outwash nib; Have the following punch die hole corresponding in the described down punch die, have plug to be inserted in down in the following punch die hole on the punch die and insert behind the nib in passing in the centre bore on the upward interior punch die with the outwash nib.

Described mould is characterized in that: the stamping surface of punch die is positioned at the upside or the downside of the stamping surface of outer punch die in described the going up.

The course of work of the present utility model is as follows: earlier in the middle nib of middle mould, fill metal dust, start simultaneously again go up outer punch die, go up in punch die, punch die down, in making outer punch die therefrom the mould upside inserting in the nib, in the upward interior punch die insertion outwash nib; Simultaneously, following punch die is during therefrom the mould downside inserts in the nib.At this moment, go up the stamping surface of outer punch die and the stamping surface of last interior punch die and from the metal dust upside it is pushed, the stamping surface of following punch die pushes it from the metal dust downside.Because the upper and lower both sides of metal dust are extruded simultaneously, make it be compressed in extrusion modling in the die cavity.At last, start plug, make plug be inserted in down in the centre bore on the punch die and insert behind the nib in passing go up in the centre bore on the punch die, like this, in forming part, be formed centrally centre bore.

Because the stamping surface of punch die is positioned at the upside or the downside of the stamping surface of outer punch die in last, so, can on the upper surface of part, be formed with step surface.

The utility model has the advantages that:

The utility model is simple in structure, punching press is convenient, and the center of being applicable to has the stamping parts that centre bore and upper surface have step surface.

Description of drawings:

Fig. 1 is STRUCTURE DECOMPOSITION figure of the present utility model.

The specific embodiment:

Mould, is gone up outer punch die 2 and following punch die 3 at mould 1 in including, described in mould 1 center have in nib 4, described outer punch die 2 is therefrom in the insertion of mould 1 upside in the nib 4; Described punch die 3 down therefrom mould 1 downside inserts in the described middle nib 4, leave the space between the stamping surface of described outer punch die 2 and the stamping surface of following punch die 3 and form die cavity, described outer punch die 2 centers of have outwash nib 5, are fitted with the interior punch die 6 of going up of hollow in the described outwash nib 5; Have the following punch die hole 7 corresponding in the described down punch die 3 with outwash nib 5, have plug 8 to be inserted in down in the following punch die hole 7 on the punch die 3 and in passing nib 4 backs insert in the centre bore of going up on the interior punch die 6.The stamping surface of punch die 6 is positioned at the upside of the stamping surface of outer punch die 2 in going up.

Claims

1. mould is characterized in that: include middle mould, go up outer punch die and following punch die, described in the mould center have middle nib, described outer punch die therefrom in the insertion of mould upside in the nib; Described punch die down therefrom mould downside inserts in the described middle nib, leaves the space between the stamping surface of described outer punch die and the stamping surface of following punch die and forms die cavity, and the described outer punch die center of has the outwash nib, is fitted with the interior punch die of going up of hollow in the described outwash nib; Have the following punch die hole corresponding in the described down punch die, have plug to be inserted in down in the following punch die hole on the punch die and insert behind the nib in passing in the centre bore on the upward interior punch die with the outwash nib.

2. mould according to claim 1 is characterized in that: the stamping surface of punch die is positioned at the upside or the downside of the stamping surface of outer punch die in described the going up.