CN202701377U

CN202701377U - Magnetic tile two-cavity die

Info

Publication number: CN202701377U
Application number: CN 201220416520
Authority: CN
Inventors: 马永军
Original assignee: Hengdian Group DMEGC Magnetics Co Ltd
Current assignee: Hengdian Group DMEGC Magnetics Co Ltd
Priority date: 2012-08-22
Filing date: 2012-08-22
Publication date: 2013-01-30
Anticipated expiration: 2022-08-22

Abstract

The utility model discloses a magnetic tile two-cavity die. The magnetic tile two-cavity die overcomes defects of unreasonable structure, waste of valuable materials, complex structure and large processing difficulty of magnetic tile dies in the prior art. The magnetic tile two-cavity die provides a magnetic tile die which can save valuable materials, facilitate processing, assembly and repair, particularly improve durability of a die. The magnetic tile two-cavity die comprises an upper die base and a lower die base. A concave die is arranged in the lower die base. A protruding die is arranged at the lower portion of the lower die base. An upper protruding die is arranged at the lower portion of the upper die base. Two vertically communicated tile-shaped cavities are arranged in the middle of the concave die. The inner arcs of the two tile-shaped cavities have a same center of a circle. The center of the circle is the same centers of two circles of the outer arcs of the two tile-shaped cavities. A protruding die head of the upper protruding die is matched with the tile-shaped cavity and a protruding die head of the lower protruding die is matched with the tile-shaped cavity. Due to the independent arrangement of the concave die of the magnetic tile two-cavity die, use of valuable and difficult processing alloy steel is reduced, heat treatment workload is reduced, mechanical processing is easy, assembly and repair are simple, cost is reduced, and service life of a die is prolonged.

Description

A kind of magnetic shoe one goes out two molds

Technical field

The utility model belongs to magnetic shoe manufacturing technology field, is specifically related to a kind of magnetic shoe mould of rare earth permanent magnet product.

Background technology

The magnetic shoe production of prior art, bonded neodymium-iron-boron magnetic shoe for example is in process of production in order to enhance productivity, usually be two of moulds or one-mold multiple-member with Design of Dies, the magnetic shoe product that particularly size is large, prior art go out two molds with one and are designed to be arranged in parallel, and upper lower punch independently separately.Obviously, adopt above-mentioned mould scheme to produce for Agglutinate neodymium-iron-boron magnetic shoe product, will cause die assembly and difficulty of processing to increase.Also have upper and lower punch and die respectively are made as one, China Patent No. ZL201020275502.2 for example, name is called the utility model patent of " a kind of magnetic tile forming die structure ", a kind of magnetic tile forming die structure is disclosed, comprise upper punch, low punch and former, the through hole that axially is provided with up/down perforation at described former, in described through hole, be provided with movable core, form at least two separate cavitys between described core and the through hole, be provided with the plush copper that cooperates with described cavity at described upper punch and low punch.This utility model all is arranged on mold, die holder and the core rod of die on same the workpiece, no matter die holder is not identical on material therefor, process equipment, the Technology for Heating Processing with core rod in fact, is combined and causes precious materials waste, difficulty of processing increase, complex structure, heat treatment difficulty and distortion to increase.

Summary of the invention

The utility model technical issues that need to address are, the magnetic tile forming die structure that overcomes prior art is unreasonable, the defective that precious materials waste, complex structure and difficulty of processing increase, provide a kind of saving precious materials, handling ease, assembling and easy to maintenance, especially the magnetic shoe molding die of die durability raising.

The purpose of this utility model is achieved by following technical proposals: a kind of magnetic shoe one goes out two molds, comprise die shoe and die shoe, be provided with die in the die shoe, the die shoe bottom is provided with lower punch, the upper bolster bottom is provided with upper male mould, be provided with two up and down penetrating watt shape inner chambers in the middle of the die, the inner arc of two watts of shape inner chambers has the identical center of circle, and the center of circle of the outer arc of this center of circle and two watts of shape inner chambers is the same center of circle; The punch head of upper male mould is adaptive with watt shape inner chamber, and the punch head of lower punch is adaptive with watt shape inner chamber.

Watt shape structure of the symmetry of concentric is set in die, because symmetric configuration makes the radial stress partial offset, the die of design is improved die life in pressing process like this; Upper lower punch Integral design has solved the large problem of Mould Machining precision difficulty, and quick and easy for installation, and frock is simple.

As preferably, upper male mould and lower punch all are ladder-type structure.

As preferably, the punch grease head highness of lower punch is more than or equal to the height of die.

As preferably, watt type inner chamber upper end of die is provided with the rounded corner of R0.1 mm.

As preferably, watt shape inner chamber fit clearance of watt shape inner chamber fit clearance of the punch head of upper male mould and die and the punch head of lower punch and die all is 0.015～0.02mm.

The beneficial effects of the utility model are:

1, die is set separately, reduces valuable and unmanageable steel alloy consumption;

2, alleviate the heat treatment workload;

3, easy, the assembling and easy to maintenance of machined;

4, reduce cost, prolong die life.

Description of drawings

Fig. 1 is the structural representation of a kind of embodiment of the utility model;

Fig. 2 be the utility model die partly cut open structural representation;

Fig. 3 is the schematic top plan view of Fig. 2;

Fig. 4 is utility model upper male mould structural representation;

Fig. 5 is the elevational schematic view of Fig. 4;

Fig. 6 is utility model lower punch structural representation;

Fig. 7 is the schematic top plan view of Fig. 6;

Fig. 8 is the A place enlarged diagram of Fig. 2.

Among the figure, die shoe 1; Die 2; Watt shape inner chamber 21; Import chamfering 22; Lower punch 3; Upper male mould 4; Punch head 41.

The specific embodiment

Below in conjunction with accompanying drawing and specific embodiments the utility model is further described.

Embodiment 1: as shown in Figure 1, a kind of magnetic shoe one goes out two molds, comprise die shoe 1 and upper bolster, being provided with die 2, die 2 and counterdie 1 in the die shoe 1 adopts the method that is press-fitted to be fixedly connected with, die shoe 1 bottom is provided with lower punch 3, and the upper bolster bottom is provided with upper male mould 4, is provided with two up and down penetrating watt shape inner chambers 21 in the middle of the die 2, the inner arc of two watts of shape inner chambers 21 has the identical center of circle, and the center of circle of the outer arc of this center of circle and two watts of shape inner chambers 21 is the same center of circle; The punch head 41 of upper male mould 4 is adaptive with watt shape inner chamber 21, the punch head of lower punch 3 is adaptive with watt shape inner chamber, the upper surface of lower punch 3 also is watt bottom surface of shape inner chamber 21 simultaneously, after the magnetic shoe compacting sintering is finished, upper male mould 4 up resets and withdraws from, and then lower punch 3 up ejects product watt shape inner chamber 21 of die 2.

Watt shape structure of the symmetry of concentric is set in die 2, because symmetric configuration makes the radial stress partial offset, the die 2 of design is improved die life in pressing process like this; Upper male mould and lower punch adopt the integral type design to solve the large problem of Mould Machining precision difficulty, and quick and easy for installation, and frock is simple, shown in Fig. 2,3.

Upper male mould 4 and lower punch 3 all are ladder-type structure, and the punch head 41 of upper male mould 4 is provided with two, and be suitable with two watts of shape inner chambers of symmetry respectively, equally, the punch head of lower punch 3 also is provided with two, and is adaptive with two watts of shape inner chamber tops of symmetry respectively, shown in Fig. 4～7.

The punch grease head highness of lower punch guarantees that more than or equal to the height of die 2 this highly can make the magnetic shoe product of making eject concave die cavity fully.

The punch head 41 of upper male mould 4 and watt shape inner chamber 21 fit clearances of die 2 and the punch head of lower punch and watt shape inner chamber fit clearance of die all are 0.015～0.02mm.The end of the end of the punch head 41 of upper male mould 4 and the punch head of lower punch all must not chamfering.

Embodiment 2: watt shape inner chamber 21 upper ends of die 2 are provided with and import chamfering 22, and the depth B that imports chamfering 22 is 1～1.5mm, and angle of inclination C is for becoming 10 ° of angles with the counterdie axis.Upper male mould 4 withdraws from die 2 fully after resetting, can carry out smoothly when again being pressed into die 2, arranges to import chamfering 22 and can avoid punch head 41 and die 2 oral area accident collisions to damage, as shown in Figure 8.

The utility model can use in the magnetic shoe of various styles is made, have the steel alloy consumption few, alleviate heat treatment workload, machined easily, assembling and advantage easy to maintenance, that reduce cost and prolong die life, if those skilled in the art does simple the modification or replacement to the foregoing invention content, such change can not think to break away from scope of the present utility model, and all will be included within the scope of claim of the present utility model the apparent modification of those skilled in the art like this.

Claims

1. a magnetic shoe one goes out two molds, comprise die shoe and die shoe, it is characterized in that, be provided with die in the die shoe, the die shoe bottom is provided with lower punch, the upper bolster bottom is provided with upper male mould, be provided with two up and down penetrating watt type inner chambers in the middle of the die, the inner arc of two watts of type inner chambers has the identical center of circle, and the center of circle of the outer arc of this center of circle and two watts of type inner chambers is the same center of circle; The punch head of upper male mould is adaptive with watt type inner chamber, and the punch head of lower punch is adaptive with watt type inner chamber.

2. a kind of magnetic shoe one according to claim 1 goes out two molds, it is characterized in that, upper male mould and lower punch all are ladder-type structure.

3. a kind of magnetic shoe one according to claim 1 and 2 goes out two molds, it is characterized in that, the punch grease head highness of lower punch is more than or equal to the height of die.

4. a kind of magnetic shoe one according to claim 3 goes out two molds, it is characterized in that, watt type inner chamber upper end of die is provided with the rounded corner of R0.1 mm.

5. a kind of magnetic shoe one according to claim 3 goes out two molds, it is characterized in that, watt shape inner chamber upper end of die is provided with the importing chamfering, and the depth B that imports chamfering is 1～1.5mm, and angle of inclination C is for becoming 10 ° of angles with the counterdie axis.

6. a kind of magnetic shoe one according to claim 3 goes out two molds, it is characterized in that, watt type inner chamber fit clearance of watt type inner chamber fit clearance of the punch head of upper male mould and die and the punch head of lower punch and die all is 0.015～0.020mm.