CN203184646U

CN203184646U - High-speed compression moulding powder metallurgy die

Info

Publication number: CN203184646U
Application number: CN 201320230521
Authority: CN
Inventors: 徐学军
Original assignee: ZHONGSHAN SINTS POWDER METALLURGY Co Ltd
Current assignee: ZHONGSHAN SINTS POWDER METALLURGY Co Ltd
Priority date: 2013-04-28
Filing date: 2013-04-28
Publication date: 2013-09-11
Anticipated expiration: 2023-04-28

Abstract

The utility model discloses a high-speed compression moulding powder metallurgy die, which comprises a lower template, an upper template, a guide pillar, a fixed template, an electromagnet and a permanent magnet, wherein the lower template is fixedly provided with a lower stamping die; a female die is fixedly arranged in the lower stamping die; the upper template is positioned above the lower template; the upper template is fixedly provided with an upper stamping die corresponding to the die cavity of the female die; the bottom end part of the guide pillar is fixedly arranged on the lower template; the upper template is movably sheathed on the guide pillar; the fixed template is fixedly connected to the upper end part of the guide pillar and is positioned above the upper template; the electromagnet is fixedly arranged on the lower surface of the fixed template; the permanent magnet is fixedly arranged on the upper template and is vertically corresponded to the electromagnet; and the electromagnet and the permanent magnet are matched in a magnetism repulsion mode. Compared with the prior art, the high-speed compression moulding powder metallurgy die disclosed by the utility model is characterized in that the electromagnet and the permanent magnet are matched in the magnetism repulsion mode to apply reverse thrust to an upper punch for offsetting the kinetic energy of the upper punch so as to prevent the upper punch from knocking other components of the die, improve the safety of the die and prolong the service lift of the die. Meanwhile, the high-speed compression moulding powder metallurgy die disclosed by the utility model has the advantages of simple structure and the like.

Description

The metallurgical mould of a kind of high velocity compacted powder for molding

Technical field

The utility model relates to the metallurgical mould of a kind of high velocity compacted powder for molding.

Background technology

Powder metallurgy is the Workpiece shaping technology of carrying out sintering after placing mould by compression moulding metal dust again, and it has efficiently, the advantage of high-quality, precision, low energy consumption, has become a kind of Work piece processing method of alternative conventional cast moulding gradually.

Continuous development along with powder metallurgical technique; workpiece after the requirement moulding has good compactness; therefore; the high velocity compacted method is by being applied in the powder metallurgy industry gradually; it normally utilizes up to the instantaneous velocity more than the 15m/s and impacts metal powder material; when compacting; powder bears and comes from the greater impact power that staking punch applies; make powder be pressed moulding in the short period of time; make the workpiece after the machine-shaping have higher compactness; yet; when staking punch applies greater impact power to metal powder material; it can be subjected to powder to its big up time reaction force, therefore, and in the high velocity compacted process of reality; the powder compressive deformation is not enough to offset the staking punch up time and impacts the kinetic energy that produces; staking punch is owing to be subjected to bigger reaction force, and meeting is collided with the miscellaneous part generation on the mould usually, thus mold damage.

The utility model content

At the deficiencies in the prior art, the purpose of this utility model is intended to provide a kind of high velocity compacted powder for molding metallurgical mould, can reduce staking punch to the impulsive force of mould, improves mould security and service life.

For achieving the above object, the utility model adopts following technical scheme:

The metallurgical mould of a kind of high velocity compacted powder for molding comprises,

Lower bolster fixedly has following punch die on it, former is fixedly arranged in the following punch die;

Cope match-plate pattern is positioned at the top of lower bolster, and the upper trimming die corresponding with the die cavity of former fixedly arranged on this cope match-plate pattern;

Guide pillar, its bottom is fixed on the lower bolster, being socketed on the guide pillar of cope match-plate pattern activity;

Fixed form is fixedly connected on the upper end of guide pillar and is positioned at the top of cope match-plate pattern;

Electromagnet is fixed in the lower surface of fixed form;

Permanent magnet is fixed on the cope match-plate pattern and corresponding up and down with electromagnet, and this permanent magnet cooperates with the mode that electromagnet repels each other with magnetic.

Electromagnet comprises that the iron core that is fixed in the fixed form lower surface and winding are at the coil of iron core outside.

The both sides of cope match-plate pattern are provided with a permanent magnet, the both sides of fixed form be provided with one with permanent magnet electromagnet one to one.

The beneficial effects of the utility model are:

Than prior art, electromagnet and permanent magnet that the utility model utilizes magnetic to repel each other cooperate, upper punch is applied reverse thrust, in order to offset the kinetic energy of upper punch, thereby avoid the miscellaneous part of upper punch bump mould, improve security and the service life of mould, simultaneously, the utlity model has advantages of simple structure and simple.

Description of drawings

Fig. 1 is structural representation of the present utility model;

Wherein: 10, lower bolster; 11, following punch die; 12, former; 20, cope match-plate pattern; 21, upper trimming die; 30, fixed form; 40, guide pillar; 51, iron core; 52, coil; 60, permanent magnet.

The specific embodiment

Below, by reference to the accompanying drawings and the specific embodiment, the utility model is described further:

As shown in Figure 1, for the metallurgical mould of a kind of high velocity compacted powder for molding of the present utility model, comprise lower bolster 10, cope match-plate pattern 20, fixed form 30, guide pillar 40, following punch die 11 is fixedly arranged on the lower bolster 10, in the following punch die 11 former 12 is arranged fixedly; The bottom of guide pillar 40 is fixed on the lower bolster 10, and cope match-plate pattern 20 is positioned at the top of lower bolster 10 and movable being socketed on the guide pillar 40, and the upper trimming die corresponding with the die cavity of former 12 21 fixedly arranged on the cope match-plate pattern 20; Lower surface at fixed form 30 is equipped with electromagnet, this electromagnet is made up of iron core 51 and coil 52, corresponding, upper surface at cope match-plate pattern 20 fixedly has permanent magnet 60, permanent magnet 60 and electromagnet are corresponding up and down, and permanent magnet 60 cooperates with the mode that electromagnet repels each other with magnetic, that is to say, under the electromagnet energising situation, it applies downward active force to permanent magnet 60.

In use, cope match-plate pattern 20 drives upper trimming die 21 high velocity compacted metal powder materials, after compacting is finished, upper punch mould 21 is subjected to bigger reaction force and makes progress moment of resilience, the power supply circuits of coil 52 are opened, electromagnet applies downward active force to permanent magnet 60, stop cope match-plate pattern 20 to move upward, and by the electric current in a controller control coil 52 current supply circuits short time vanishing, be that electromagnet reduces gradually to the repulsive force that permanent magnet 60 applies, the miscellaneous part of upper trimming die 21 and cope match-plate pattern 20 bump moulds is avoided in the kinetic energy vanishing that makes progress of upper trimming die 21 the most at last.

The both sides of cope match-plate pattern 20 are provided with a permanent magnet 60, and the both sides of fixed form 30 are provided with an electromagnet corresponding with permanent magnet 60, thereby guarantee stress balance.

To one skilled in the art, can make other various corresponding changes and deformation, and these all changes and deformation should belong within the protection domain of the utility model claim all according to technical scheme described above and design.

Claims

1. the metallurgical mould of high velocity compacted powder for molding is characterized in that, comprise,

Electromagnet is fixed in the lower surface of fixed form;

2. the metallurgical mould of high velocity compacted powder for molding as claimed in claim 1 is characterized in that, electromagnet comprises that the iron core that is fixed in the fixed form lower surface and winding are at the coil of iron core outside.

3. the metallurgical mould of high velocity compacted powder for molding as claimed in claim 1 is characterized in that the both sides of cope match-plate pattern are provided with a permanent magnet, the both sides of fixed form be provided with one with permanent magnet electromagnet one to one.