CN214920499U

CN214920499U - Magnetic powder metallurgy ring forming part pressing device

Info

Publication number: CN214920499U
Application number: CN202121400240.2U
Authority: CN
Inventors: 邵斌; 马毅龙; 陈登明; 赖嘉琪; 李超群
Original assignee: Chongqing University of Science and Technology
Current assignee: Chongqing University of Science and Technology
Priority date: 2021-06-23
Filing date: 2021-06-23
Publication date: 2021-11-30
Anticipated expiration: 2031-06-23

Abstract

The utility model discloses a magnetism powder metallurgy loop forming element suppression device, the on-line screen storage device comprises a base, the die holder, electrically conductive bar copper and controllable power, the base level sets up, die holder fixed mounting is at the upper surface of base, the vertical die cavity that has run through on the die holder, the die cavity is the round hole form, the locating hole has still been run through at the center of base, the locating hole is located the die cavity under, the vertical inserting of electrically conductive bar copper is established in the die cavity, the central line coincidence of electrically conductive bar copper and die cavity, the locating hole is stretched out to the lower part of electrically conductive bar copper, the lower extreme and the locating hole interference fit of electrically conductive bar copper, the positive end switch-on through circuit and electrically conductive bar copper of controllable power, the negative pole of controllable power passes through the lower extreme switch-on of circuit and electrically conductive bar copper. Adopt the utility model discloses a magnetic powder metallurgy ring unit suppression device utilizes and switches on to electrically conductive bar copper, forms annular magnetic field at electrically conductive bar copper's periphery for magnetic metal powder suppresses and arranges according to the direction in magnetic field, guarantees magnetic metal powder's uniformity, has improved product quality.

Description

Magnetic powder metallurgy ring forming part pressing device

Technical Field

The utility model relates to a metallurgical device, concretely relates to magnetic powder metallurgy loop forming element suppression device.

Background

Powder metallurgy is an industrial technology for preparing metal powder or metal materials, composite materials and various products by using metal powder (or a mixture of metal powder and nonmetal powder) as a raw material and performing forming and sintering. At present, the powder metallurgy technology is widely applied to the fields of transportation, machinery, electronics, aerospace, weapons, biology, new energy, information, nuclear industry and the like, has a series of advantages of remarkable energy conservation, material conservation, excellent performance, high product precision, good stability and the like, is very suitable for mass production, but for magnetic metal powder, the N pole and the S pole are arranged, and the two poles of the magnetic metal powder in a powder state are disordered and cannot be sequenced, so that the product quality is influenced.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a magnetism powder metallurgy loop forming element suppression device helps pressing and sequencing the two poles of the earth of magnetic particle.

The technical scheme is as follows:

the key of the device is that the device comprises a base, a die holder, a conductive copper bar and a controllable power supply, wherein the base is horizontally arranged, the die holder is fixedly arranged on the upper surface of the base, a die cavity vertically penetrates through the die holder, the die cavity is in a circular hole shape, a positioning hole penetrates through the center of the base, and the positioning hole is positioned right below the die cavity;

the conductive copper rod is vertically inserted into the die cavity, the conductive copper rod is overlapped with the central line of the die cavity, the lower part of the conductive copper rod extends out of the positioning hole, and the lower end of the conductive copper rod is in interference fit with the positioning hole;

the anode of the controllable power supply is communicated with the upper end of the conductive copper rod through a circuit, and the cathode of the controllable power supply is communicated with the lower end of the conductive copper rod through a circuit.

The effect of adopting above scheme: the conductive copper rod is electrified, an annular magnetic field is formed at the periphery of the conductive copper rod, so that the magnetic metal powder is pressed and arranged according to the direction of the magnetic field, the consistency of the magnetic metal powder is ensured, and the product quality is improved.

The conductive copper rod mould is characterized by further comprising an annular pressure head, wherein the annular pressure head is movably sleeved at the upper end of the conductive copper rod, the radius of an outer ring of the annular pressure head is equal to that of the mould cavity, and an inner ring of the annular pressure head is attached to the outer wall of the conductive copper rod;

the top of annular pressure head still is equipped with extrusion device, extrusion device's expansion end is down, extrusion device's expansion end tip is vertical to be equipped with a plurality of stripper bars, all the stripper bar centers on electrically conductive bar copper evenly sets up, all the lower extreme of stripper bar with the upper surface fixed connection of annular pressure head.

An annular bottom plate is further arranged in the die holder, the annular bottom plate is movably sleeved on the conductive copper rod, the inner wall of the annular bottom plate is attached to the outer wall of the conductive copper rod, and the outer wall of the annular bottom plate is attached to the inner wall of the die holder;

the base still runs through there are a plurality of promotion holes, and all promote the hole and center on the locating hole evenly distributed, the below of base is equipped with ejecting device, ejecting device's expansion end tip is up and be equipped with a plurality of lifters, the vertical setting of lifters, all the lifters with promote the hole one-to-one, the lifters activity is worn to establish and is corresponded promote downtheholely, the upper end of lifters with the lower terminal surface of annular bottom plate supports and leans on.

And the conductive copper bar is also provided with an insulating layer, and the insulating layer uniformly covers the outer wall of the conductive copper bar.

The base is made of insulating materials.

The extrusion device and the ejection device are both hydraulic oil cylinders.

Has the advantages that: the utility model discloses the utilization is switched on to electrically conductive bar copper, forms annular magnetic field at electrically conductive bar copper's periphery for magnetic metal powder suppresses and arranges according to the direction in magnetic field, guarantees magnetic metal powder's uniformity, has improved product quality.

Drawings

Fig. 1 is a schematic sectional view of the present invention.

Detailed Description

The present invention will be further described with reference to the following examples and accompanying drawings.

As shown in fig. 1, a magnetic powder metallurgy ring-shaped member pressing device mainly comprises a base 1, a die holder 2, a conductive copper rod 3 and a controllable power supply 5, wherein the base 1 is horizontally arranged, the die holder 2 is fixedly installed on the upper surface of the base 1, a die cavity 2a vertically penetrates through the die holder 2, the die cavity 2a is in a circular hole shape, a positioning hole penetrates through the center of the base 1, and the positioning hole is located right below the die cavity 2 a;

the conductive copper rod 3 is vertically inserted into the die cavity 2a, the conductive copper rod 3 is overlapped with the central line of the die cavity 2a, the lower part of the conductive copper rod 3 extends out of the positioning hole, and the lower end of the conductive copper rod 3 is in interference fit with the positioning hole;

the anode of the controllable power supply 5 is communicated with the upper end of the conductive copper rod 3 through a circuit, and the cathode of the controllable power supply 5 is communicated with the lower end of the conductive copper rod 3 through a circuit.

Wherein:

the conductive copper rod die further comprises an annular pressure head 4, the annular pressure head 4 is movably sleeved at the upper end of the conductive copper rod 3, the radius of the outer ring of the annular pressure head 4 is equal to that of the die cavity 2a, and the inner ring of the annular pressure head 4 is attached to the outer wall of the conductive copper rod 3;

the top of annular pressure head 4 still is equipped with extrusion device 7, extrusion device 7's expansion end is down, extrusion device 7's expansion end tip is vertical to be equipped with a plurality of stripper bars 4a, and all stripper bars 4a centers on electrically conductive bar copper 3 evenly sets up, all stripper bars 4 a's lower extreme with the last fixed surface of annular pressure head 4 is connected.

An annular bottom plate 6 is further arranged in the die holder 2, the annular bottom plate 6 is movably sleeved on the conductive copper rod 3, the inner wall of the annular bottom plate 6 is attached to the outer wall of the conductive copper rod 3, and the outer wall of the annular bottom plate 6 is attached to the inner wall of the die holder 2;

the base 1 is further penetrated with a plurality of pushing holes, all the pushing holes are uniformly distributed around the positioning holes, an ejection device 8 is arranged below the base 1, the movable end part of the ejection device 8 faces upwards and is provided with a plurality of lifting rods 6a, the lifting rods 6a are vertically arranged, all the lifting rods 6a are in one-to-one correspondence with the pushing holes, the lifting rods 6a are movably arranged in the pushing holes in a penetrating mode, and the upper ends of the lifting rods 6a are abutted to the lower end face of the annular bottom plate 6.

And the conductive copper bar 3 is also provided with an insulating layer, and the insulating layer uniformly covers the outer wall of the conductive copper bar 3.

The base 1 is made of insulating materials.

The extrusion device 7 and the ejection device 8 are both hydraulic oil cylinders.

During the use, add magnetic metal powder into die cavity 2a, open controllable power 5 and make electrically conductive bar copper 3 circular telegram, can form annular magnetic field around electrically conductive bar copper 3, magnetic metal powder can arrange according to the magnetic field is automatic under the effort that receives magnetic field, then utilize extrusion device 7 to promote annular pressure head 4 and extrude magnetic metal powder, the magnetic field of electrically conductive bar copper 3 is called entirely and is suppressed magnetic metal powder simultaneously, treat the magnetic metal powder shaping back, remove annular pressure head 4, utilize ejecting device 8 to promote annular bottom plate 6 and take the work piece out.

The positive circuit of the controllable power supply 5 is fixedly connected with the upper end face of the conductive copper rod 3 from any two adjacent extrusion rods 4a, and the negative circuit of the controllable power supply 5 is fixedly connected with the lower end face of the conductive copper rod 3 from any two adjacent jacking rods 6 a.

Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and the scope of the present invention.

Claims

1. A magnetic powder metallurgy ring piece pressing device is characterized in that: the conductive copper bar die comprises a base (1), a die holder (2), a conductive copper bar (3) and a controllable power supply (5), wherein the base (1) is horizontally arranged, the die holder (2) is fixedly arranged on the upper surface of the base (1), a die cavity (2a) vertically penetrates through the die holder (2), the die cavity (2a) is in a circular hole shape, a positioning hole penetrates through the center of the base (1), and the positioning hole is positioned under the die cavity (2 a);

the conductive copper rod (3) is vertically inserted into the die cavity (2a), the conductive copper rod (3) is overlapped with the central line of the die cavity (2a), the lower part of the conductive copper rod (3) extends out of the positioning hole, and the lower end of the conductive copper rod (3) is in interference fit with the positioning hole;

the anode of the controllable power supply (5) is communicated with the upper end of the conductive copper rod (3) through a circuit, and the cathode of the controllable power supply (5) is communicated with the lower end of the conductive copper rod (3) through a circuit.

2. A magnetic powder metallurgy ring compaction device according to claim 1 wherein: the conductive copper rod mould is characterized by further comprising an annular pressure head (4), wherein the annular pressure head (4) is movably sleeved at the upper end of the conductive copper rod (3), the radius of the outer ring of the annular pressure head (4) is equal to that of the mould cavity (2a), and the inner ring of the annular pressure head (4) is attached to the outer wall of the conductive copper rod (3);

the top of annular pressure head (4) still is equipped with extrusion device (7), the expansion end of extrusion device (7) is down, the vertical a plurality of stripper bars (4a) that are equipped with of expansion end tip of extrusion device (7), all stripper bar (4a) center on electrically conductive bar copper (3) evenly sets up, all the lower extreme of stripper bar (4a) with the last fixed surface of annular pressure head (4) is connected.

3. A magnetic powder metallurgy ring compaction device according to claim 2 wherein: an annular bottom plate (6) is further arranged in the die holder (2), the annular bottom plate (6) is movably sleeved on the conductive copper rod (3), the inner wall of the annular bottom plate (6) is attached to the outer wall of the conductive copper rod (3), and the outer wall of the annular bottom plate (6) is attached to the inner wall of the die holder (2);

the base (1) still runs through there are a plurality of promotion holes, and all promote the hole around locating hole evenly distributed, the below of base (1) is equipped with ejecting device (8), the expansion end tip of ejecting device (8) is up and be equipped with a plurality of lifters (6a), the vertical setting of lifters (6a), all lifters (6a) with promote the hole one-to-one, lifters (6a) activity is worn to establish and is corresponded promote downtheholely, the upper end of lifters (6a) with the lower terminal surface of annular bottom plate (6) supports and leans on.

4. A magnetic powder metallurgy ring compaction device according to claim 3 wherein: the conductive copper rod (3) is further provided with an insulating layer, and the insulating layer uniformly covers the outer wall of the conductive copper rod (3).

5. A magnetic powder metallurgy ring compaction device according to claim 4 wherein: the base (1) is made of insulating materials.

6. A magnetic powder metallurgy ring compaction device according to claim 5 wherein: the extrusion device (7) and the ejection device (8) are both hydraulic oil cylinders.