CN214079249U - Powder metallurgy pressing die - Google Patents
Powder metallurgy pressing die Download PDFInfo
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- CN214079249U CN214079249U CN202023068628.5U CN202023068628U CN214079249U CN 214079249 U CN214079249 U CN 214079249U CN 202023068628 U CN202023068628 U CN 202023068628U CN 214079249 U CN214079249 U CN 214079249U
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Abstract
The utility model discloses a powder metallurgy embossing mold utensil, include: a lower pressure head and an upper pressure head; four side panels including first and second side panels opposite to each other and third and fourth side panels opposite to each other; the lower pressure head, the upper pressure head and the four side plates are enclosed to form a die cavity; one end of each of the third side plate and the fourth side plate is pivoted to the first side plate, so that the third side plate and the fourth side plate can be switched between a state of enclosing to form the mold cavity and a state of opening the mold cavity; the second side plate is detachably arranged at the other ends of the third side plate and the fourth side plate. Based on embossing mold utensil, can improve the assembly of embossing mold utensil in the powder metallurgy technology and dismantle efficiency, and then improve the suppression efficiency in the powder metallurgy technology.
Description
Technical Field
The utility model relates to a neodymium iron boron permanent magnet material prepares the field, especially relates to a powder metallurgy embossing mold utensil.
Background
At present, the manufacturing industry powder metallurgy industry is necessary to carry out a pressing process, and a pressing die is the most important part of the pressing process. Most of the existing dies are divided into three parts, namely a large side plate, a small side plate and a pressure head, wherein the three parts are respectively 2, the total number of accessories is 6, 2 large side plates are required to be assembled before powder is pressed, 2 small side plates and 1 lower pressure head are required to be assembled, one hand is used for holding the two large side plates of the dies, one hand is used for pouring powder into the die cavity, after the powder is uniformly shaken, the upper pressure head is finally placed into the die cavity for pressing, the accessories are required to be respectively taken out of pressed blanks in the dies after the pressing is finished, a lot of time is wasted by assembling and disassembling the dies back and forth, and the pressing efficiency is seriously influenced.
SUMMERY OF THE UTILITY MODEL
An object of the present invention is to solve at least the above problems and/or disadvantages and to provide at least the advantages which will be described later.
An object of the utility model is to provide a powder metallurgy embossing mold utensil, it can improve the assembly of embossing mold utensil in the powder metallurgy technology and dismantle efficiency, and then improves the pressing efficiency in the powder metallurgy technology.
To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided a powder metallurgy pressing die including:
a lower pressure head and an upper pressure head;
four side panels including first and second side panels opposite to each other and third and fourth side panels opposite to each other;
the lower pressure head, the upper pressure head and the four side plates are enclosed to form a die cavity;
one end of each of the third side plate and the fourth side plate is pivoted to the first side plate, so that the third side plate and the fourth side plate can be switched between a state of enclosing to form the mold cavity and a state of opening the mold cavity; the second side plate is detachably arranged at the other ends of the third side plate and the fourth side plate.
Optionally, the pivoting ends of the third side plate and the fourth side plate are provided with step surfaces, and the step surfaces are tightly attached to the inner side surface of the first side plate.
Optionally, the second side plate is detachably disposed at the other end of the third side plate and the other end of the fourth side plate through a fastening structure.
Optionally, the fastening structure includes a fastening groove formed on the second side plate, and the other ends of the third side plate and the fourth side plate are fastened in the fastening groove.
Optionally, the clamping groove is of a flared structure, and the outer side end face of the other end of the third side plate and the outer side end face of the other end of the fourth side plate are provided with inclined planes matched with the clamping groove.
Optionally, the powder is a magnetic powder.
Optionally, the first side plate and the second side plate are made of magnetic conductive materials, the third side plate and the fourth side plate are made of non-magnetic materials, one ends of the third side plate and the fourth side plate are pivoted to the first side plate through pin shafts, and the pin shafts are made of non-magnetic materials.
The utility model discloses at least, include following beneficial effect:
the embodiment of the utility model provides a powder metallurgy embossing mold utensil, include: a lower pressure head and an upper pressure head; four side panels including first and second side panels opposite to each other and third and fourth side panels opposite to each other; the lower pressure head, the upper pressure head and the four side plates are enclosed to form a die cavity; one end of each of the third side plate and the fourth side plate is pivoted to the first side plate, so that the third side plate and the fourth side plate can be switched between a state of enclosing to form the mold cavity and a state of opening the mold cavity; the second side plate is detachably arranged at the other ends of the third side plate and the fourth side plate. When the pressing die provided by the utility model is used, the third side plate and the fourth side plate are rotated inwards to enable the third side plate and the fourth side plate to rotate to the position capable of forming a die cavity, the lower pressing head is placed between the three side plates, the second side plate is connected to the other ends of the third side plate and the fourth side plate, powder is poured in, and the upper pressing head is placed in, so that the die is assembled; the second side plate is taken down, the third side plate and the fourth side plate are opened outwards, and the pressed blank can be taken out, so that the die is disassembled. Therefore, based on the embossing mold utensil, can improve the assembly of embossing mold utensil in the powder metallurgy technology and dismantle efficiency, and then improve the pressing efficiency in the powder metallurgy technology.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic perspective view of a powder metallurgy pressing die according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a powder metallurgy pressing die according to an embodiment of the present invention;
fig. 3 is a cross-sectional view of a powder metallurgy pressing die according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a first side plate according to an embodiment of the present invention;
fig. 5 is a schematic perspective view of a third side plate according to an embodiment of the present invention;
fig. 6 is a schematic structural view of a third side plate according to an embodiment of the present invention;
fig. 7 is a schematic perspective view of a second side plate according to an embodiment of the present invention;
fig. 8 is a schematic structural view of a second side plate according to an embodiment of the present invention.
Detailed Description
The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.
As shown in fig. 1 to 3, the embodiment of the present invention provides a powder metallurgy pressing die, including: a lower ram 5 and an upper ram 6; four side panels including first and second side panels 1 and 4 opposite to each other and third and fourth side panels 2 and 4 opposite to each other; the lower pressing head 5, the upper pressing head 6 and the four side plates are enclosed to form a die cavity; one end of each of the third side plate 2 and the fourth side plate is pivoted to the first side plate 1, so that the third side plate 2 and the fourth side plate can be switched between a state of enclosing to form the mold cavity and a state of opening the mold cavity; the second side plate 4 is detachably arranged at the other end of the third side plate 2 and the fourth side plate.
Use the embodiment of the utility model provides during embossing mold utensil, rotatory third curb plate 2 of internal rotation and fourth curb plate make third curb plate 2 and fourth curb plate rotatory to the position that can form the die cavity, place pressure head 5 down between three curb plate, be connected to the other end of third curb plate 2 and fourth curb plate with second curb plate 4 again, pour into the powder, put into pressure head 6, accomplish the assembly to the mould promptly. The second side plate 4 is taken down, and the third side plate 2 and the fourth side plate are opened outwards, so that the pressed blank can be taken out, and the die is disassembled.
Specifically, please refer to fig. 4, pin holes are respectively formed at two ends of the first side plate 1 for inserting the pin shafts 3, the pair of pin shafts 3 are respectively inserted into the two pin holes, and the third side plate 2 and the fourth side plate are respectively pivoted with two ends of the first side plate 1 through the respective pin shafts 3. When the third side plate 2 and the fourth side plate are pivoted to a state perpendicular to the first side plate 1, the four side plates and the upper pressure head 6 and the lower pressure head 5 are matched with each other to form a mold cavity; when the third side plate 2 and the fourth side plate are pivoted outward, the die cavity is opened and the compact can be removed.
Referring to fig. 5 and 6, the third side plate 2 and the fourth side plate have the same structure, and are respectively pivoted to two ends of the first side plate 1. The third side panel 2 is taken as an example, and the structure of the third side panel 2 and the fourth side panel will be described. One end of the third side plate 2 is provided with two sections of pin holes, and the pin shaft 3 firstly passes through one section of pin hole of the third side plate 2, then passes through the pin hole of the first side plate 1, and then passes through the other section of pin hole of the third side plate 2, so that one end of the third side plate 2 is pivoted to the first side plate 1. The pin holes on the third side plate 2 are tightly matched with the pin shafts 3, so that the pin shafts 3 and the third side plate 2 move synchronously. The pin holes in the first side plate 1 are in clearance fit with the pin shafts 3, the clearance is required to be 0.005-0.015mm, the clearance is small so as to ensure the precision of the die, and meanwhile, the third side plate 2 can rotate relative to the first side plate 1 along with the pin shafts 3.
Because there is the clearance between the pinhole of round pin axle 3 and first curb plate 1, mean leading to there is the clearance between third curb plate 2 and the first curb plate 1, under this condition, during the dress powder, the powder can flow into inside the clearance, causes the not shaping and weight scheduling problem of suppression. Therefore, the pivoting ends of the third side plate 2 and the fourth side plate are respectively provided with a step surface 7, and the step surfaces 7 are tightly attached to the inner side surface of the first side plate 1. Specifically, the medial surface of the pin joint end of third curb plate 2 and fourth curb plate all is formed with step face 7, and when last pressure head 6, lower pressure head 5 and four curb plates were enclosed and is closed when forming the die cavity, this step face 7 can closely laminate with the medial surface of first curb plate 1, improves third curb plate 2, fourth curb plate and 1 complex compactness of first curb plate, guarantees that the powder can not flow from the die cavity, and then guarantees press forming's qualification rate. In addition, the step surface 7 can also serve as a limit for the pivoting of the third side plate 2 or the fourth side plate. That is, when the third side plate 2 and the fourth side plate are pivoted to a state perpendicular to the first side plate 1, the step faces 7 of the third side plate 2 and the fourth side plate may abut against the inner side face of the first side plate 1, so that the third side plate 2 and the fourth side plate cannot continue to rotate inward.
Referring to fig. 7 and 8, in some embodiments, the second side plate 4 is detachably disposed at the other end of the third side plate 2 and the fourth side plate through a fastening structure. Based on the snap structure, the second side plate 4 can be very easily assembled to the third side plate 2 and the fourth side plate, or the second side plate 4 can be disassembled from the third side plate 2 and the fourth side plate, thereby improving the efficiency of assembling or disassembling the mold.
In some examples, the snap structure includes a snap groove 8 formed on the second side plate 4, and the other ends of the third side plate 2 and the fourth side plate are snapped into the snap groove 8.
Further, the clamping groove 8 is of a flaring structure, and the outer side end face of the other end of the third side plate 2 and the outer side end face of the other end of the fourth side plate are provided with inclined planes 9 matched with the clamping groove 8. Specifically, since the locking groove 8 is of a flared structure, that is, the locking groove 8 is gradually reduced from the side of the notch toward the bottom of the groove, the locking groove 8 has an inclined groove wall 10, and accordingly, the outer side end surfaces of the third side plate 2 and the fourth side plate have an inclined surface 9 that is matched with the locking groove 8, that is, the outer side end surfaces of the third side plate 2 and the fourth side plate have an inclined surface that is parallel to the groove wall of the locking groove 8. When the second side plate 4 is assembled to the third side plate 2 and the fourth side plate, the inclined surface of the outer side end surface of the third side plate 2 can move along the groove wall of the second side plate 4, and the inclined surface 9 of the outer side end surface of the fourth side plate can also move along the groove wall of the second side plate 4, so that the other ends of the third side plate 2 and the fourth side plate can be clamped into the clamping groove 8 of the second side plate 4 more easily, and the assembly efficiency is improved.
It should be noted that, under the action of the step surface 7 of the third side plate 2 and the fourth side plate, the third side plate 2 and the fourth side plate can only pivot to a vertical state relative to the first side plate 1, and the slot 8 of the second side plate 4 restricts the third side plate 2 and the fourth side plate from the outer side of the other end of the third side plate 2 and the fourth side plate, so that the third side plate 2 and the fourth side plate cannot pivot to the outer side. Therefore, the third side plate 2 and the fourth side plate are kept perpendicular to the first side plate 1 by the step surface 7 and the snap structure, so that the formation of a mold cavity is ensured.
In some embodiments, the powder is a magnetic powder. In some examples, the first side plate 1 and the second side plate 4 are made of a magnetically conductive material, the third side plate 2 and the fourth side plate are made of a non-magnetic material, one end of the third side plate 2 and the fourth side plate are pivotally connected to the first side plate 1 by a pin 3, and the pin 3 is made of a non-magnetic material. Specifically, the first side plate 1 and the second side plate 4 can be made of magnetic steel, and are high in hardness and wear resistance and have magnetic conductivity. The third side plate 2 and the fourth side plate are made of non-magnetic steel, and are required to be high in hardness and good in wear resistance. The lower pressure head 5 and the upper pressure head 6 can also be made of non-magnetic steel, and have high hardness and good wear resistance.
In some examples, taking a square die as an example, the lower ram 5 is also square, the lower ram 5 is placed between four side plates, the upper ram 6 is also square, the upper ram 6 is placed between the four side plates, the lower ram 5 is at the lowest part of the die, the upper side of the lower ram 5 is a pressed blank, and the upper ram 6 is located above the pressed blank.
In order to further understand the powder metallurgy pressing mold provided by the embodiments of the present invention, the working process of the powder metallurgy pressing mold provided by the embodiments of the present invention is described below.
(1) Referring to fig. 1 to 3, a first side plate 1, a third side plate 2, a fourth side plate, and 2 pins 3 are assembled together. When the assembly is carried out, the fit clearance between the third side plate 2 or the fourth side plate and the first side plate 1 is ensured to be less than 0.02mm when the third side plate 2 and the fourth side plate are rotated to be vertical relative to the first side plate 1.
(2) The first side plate 1, the third side plate 2 and the fourth side plate are adjusted to be in a state that the third side plate 2 and the fourth side plate are perpendicular to the first side plate 1, then the lower pressing head 5 is placed between the first side plate 1 and the third side plate 2 and the fourth side plate, and the lower pressing head 5 is ensured to be in close contact with the first side plate 1.
(3) Clamping the other ends of the third side plate 2 and the fourth side plate by using the second side plate 4, and simultaneously ensuring that the other ends of the third side plate 2 and the fourth side plate are in contact with the inner wall of a clamping groove 8 of the second side plate 4;
(4) pouring the powder to be pressed into a die cavity enclosed by the four side plates and the lower pressing head 5;
(5) placing the upper pressure head 6 into a die cavity filled with powder from the top of the die;
(6) placing the die into a pressing part of a press, respectively pressing the first side plate 1 and the second side plate 4 by two pole heads on the press, and pressing the upper pressing head 6 to be flush with the upper end of the die by a hydraulic cylinder on the press;
(7) the hydraulic cylinder drives the compression bar to return, the two pole heads are loosened, and the die is taken out;
(8) firstly, the second side plate 4 is taken down, then the first side plate 1, the third side plate 2 and the fourth side plate are taken off together, then the upper pressure head 6 is taken off, and finally a pressed blank is taken out;
(9) and (3) continuously circulating from the step (2), so that continuous operation of powder pressing can be realized.
To sum up, the embodiment of the utility model provides a powder metallurgy embossing mold utensil, include: a lower pressure head and an upper pressure head; four side panels including first and second side panels opposite to each other and third and fourth side panels opposite to each other; the lower pressure head, the upper pressure head and the four side plates are enclosed to form a die cavity; one end of each of the third side plate and the fourth side plate is pivoted to the first side plate, so that the third side plate and the fourth side plate can be switched between a state of enclosing to form the mold cavity and a state of opening the mold cavity; the second side plate is detachably arranged at the other ends of the third side plate and the fourth side plate. Based on embossing mold utensil, can improve the assembly of embossing mold utensil in the powder metallurgy technology and dismantle efficiency, and then improve the suppression efficiency in the powder metallurgy technology.
While embodiments of the invention have been disclosed above, it is not intended to be limited to the applications listed in the specification and the examples. It can be applicable to various and be fit for the utility model discloses a field completely. Additional modifications will readily occur to those skilled in the art. The invention is therefore not to be limited to the specific details and illustrations shown and described herein, without departing from the general concept defined by the claims and their equivalents.
Claims (7)
1. A powder metallurgy compaction die, comprising:
a lower pressure head and an upper pressure head;
four side panels including first and second side panels opposite to each other and third and fourth side panels opposite to each other;
the lower pressure head, the upper pressure head and the four side plates are enclosed to form a die cavity;
one end of each of the third side plate and the fourth side plate is pivoted to the first side plate, so that the third side plate and the fourth side plate can be switched between a state of enclosing to form the mold cavity and a state of opening the mold cavity; the second side plate is detachably arranged at the other ends of the third side plate and the fourth side plate.
2. The powder metallurgy pressing die of claim 1, wherein the pivoted ends of the third side plate and the fourth side plate each have a step surface that is in close fit with the inner side surface of the first side plate.
3. The powder metallurgy compaction die of claim 1, wherein the second side plate is detachably disposed at the other end of the third side plate and the fourth side plate by a snap structure.
4. The powder metallurgy compaction die of claim 3, wherein the snap structure comprises a slot formed in the second side plate, and the other ends of the third side plate and the fourth side plate snap into the slot.
5. The powder metallurgy pressing mold according to claim 4, wherein the locking groove is of a flared structure, and outer side end faces of the other ends of the third side plate and the fourth side plate have inclined surfaces which are matched with the locking groove.
6. The powder metallurgy press die of claim 1, wherein the powder is a magnetic powder.
7. The powder metallurgy compaction die of claim 6, wherein the first side plate and the second side plate are made of magnetically permeable material, the third side plate and the fourth side plate are made of nonmagnetic material, one end of the third side plate and the fourth side plate are pivotally connected to the first side plate by a pin, and the pin is made of nonmagnetic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023068628.5U CN214079249U (en) | 2020-12-18 | 2020-12-18 | Powder metallurgy pressing die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023068628.5U CN214079249U (en) | 2020-12-18 | 2020-12-18 | Powder metallurgy pressing die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214079249U true CN214079249U (en) | 2021-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023068628.5U Active CN214079249U (en) | 2020-12-18 | 2020-12-18 | Powder metallurgy pressing die |
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| Country | Link |
|---|---|
| CN (1) | CN214079249U (en) |
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- 2020-12-18 CN CN202023068628.5U patent/CN214079249U/en active Active
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