CN218611684U - Butterfly-shaped multilayer metal compression molding die - Google Patents
Butterfly-shaped multilayer metal compression molding die Download PDFInfo
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- CN218611684U CN218611684U CN202222944176.5U CN202222944176U CN218611684U CN 218611684 U CN218611684 U CN 218611684U CN 202222944176 U CN202222944176 U CN 202222944176U CN 218611684 U CN218611684 U CN 218611684U
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Abstract
The utility model discloses a butterfly-shaped multilayer metal pressing forming die, which comprises a male die and a female die, wherein the male die comprises a pressing block body, the bottom of the pressing block body is detachably provided with a pair of pressing connecting columns with central symmetry, and a pre-pressing column head and a final pressing column head can be detachably arranged on the pressing connecting columns, so that the service life of the whole die is prolonged; the pre-pressing convex edges which cross the axis are uniformly distributed on the inner wall of the butterfly pre-pressing cavity of the pre-pressing column head, so that the dynamic balance requirement of the molybdenum-tungsten rotating target material in the working state is ensured, a transition layer with a certain interval thickness can be formed on the bonding interface of two different metals, the bonding strength between the different metal layers is improved, the inner wall of the butterfly pressing cavity of the final pressing column head is a smooth cambered surface to ensure the final forming shape of the molybdenum-tungsten target material, and the technical problems that the mechanical particle engaging force between the two metal layers is weak and the bonding strength between the two layers is low to cause layering and falling easily in the traditional forming method in the prior art are solved.
Description
Technical Field
The utility model belongs to the metal suppression field relates to a mould, specifically is a butterfly multilayer metal suppression forming die.
Background
The butterfly-shaped molybdenum-based tungsten composite target material is mainly used as a material consumed by a rotating anode of an X-ray tube and applied to the medical field. It is a two-layer composite target material formed by tightly combining metal molybdenum and tungsten together by physical or chemical acting force.
The butterfly-shaped molybdenum-tungsten two-layer metal target is prepared by a powder metallurgy method, wherein molybdenum powder and tungsten powder are directly pressed and molded, and a composite target material is prepared by vacuum sintering and forging. The method refines the target material crystal grains, avoids the waste of rare and precious raw materials, greatly saves the cost, improves the bonding strength of the substrate layer and the working layer by optimizing the preparation process parameters, improves the relative density of the tungsten layer, and enhances the accuracy and the reliability of medical equipment. The traditional cold press forming is that a tungsten powder layer is laid on a molybdenum substrate layer and is directly prepared by mechanical pressing, because the physical and chemical properties of metal particles of a tungsten powder layer and the molybdenum substrate layer have certain difference, the traditional forming method easily causes weak mechanical particle engagement force between two metal layers, low bonding strength between the two metal layers and easy layering and falling off, and meanwhile, the tungsten layer is in contact with a die male die, the tungsten layer is stressed greatly, the phenomena of tungsten layer cracking and tungsten layer and male die contact surface bonding are easy to occur, so that the working surface of the molybdenum-based tungsten target is damaged to form defective products, and serious waste of materials, labor and cost is caused. Aiming at the problems of low yield, serious material waste, low service life of a forming die, reduction of performance indexes of the forming block and the like in the traditional forming processing of the composite molybdenum oxide block, the forming die capable of changing the existing production mode is very necessary.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a butterfly multilayer metal suppression forming die, solve among the prior art traditional forming method and easily cause mechanical particle interlock between two kinds of metal levels weak and the bonding strength between two layers low easily cause the layering technical problem that drops.
In order to solve the technical problem, the utility model discloses a following technical scheme realizes:
a butterfly-shaped multilayer metal compression molding die comprises a male die and a female die, wherein the male die comprises a compression block body, a pair of compression connecting columns with central symmetry is detachably mounted at the bottom of the compression block body, a pre-compression column head or a final-compression column head is detachably mounted at the tail end of each compression connecting column, and a pair of positioning columns with central symmetry is arranged at the edge of the bottom of the compression block body;
the female die comprises a base, wherein a pair of material groove holes corresponding to the pressing connecting columns are formed in the middle of the base, a sliding block mounting through cavity communicated with the material groove holes is formed below the material groove holes, a sliding block is arranged in the sliding block mounting through cavity, and the outer wall of the top of the sliding block is in clearance fit with the inner wall of the top of the sliding block mounting through cavity; the longest distance between the pair of trough holes is not less than the width of the sliding block; the edge of the upper end surface of the female die is provided with a positioning hole corresponding to the positioning column;
the prepressing column head comprises a prepressing column head body and a butterfly prepressing cavity arranged on the end face of the bottom of the prepressing column head body, and a plurality of prepressing convex ridges are uniformly arranged on the periphery of the inner wall of the butterfly prepressing cavity;
the final pressing column head comprises a final pressing column head body and a butterfly-shaped pressing cavity arranged on the end face of the bottom of the final pressing column head body.
The utility model discloses still include following technical characteristic:
the positioning column is sleeved with a spring, the upper end of the spring is fixed to the outer edge of the top of the positioning column, and the outer diameter of the spring is larger than the inner diameter of the positioning hole.
An upper connecting column is detachably mounted at the center of the top of the pressed block body; the center of the bottom of the base is detachably provided with a lower connecting column.
The outer wall of the bottom of the pre-pressing column cap body is provided with a first annular bulge.
And a second annular bulge is formed on the outer wall of the bottom of the final pressing column head body.
The outer walls of the pre-pressing column head and the final-pressing column head are in clearance fit with the inner wall of the trough hole.
The clearance range between the outer walls of the pre-pressing column head and the final-pressing column head and the inner wall of the trough hole is 0.05-0.20 mm.
The clearance range between the outer wall of the top of the sliding block and the inner wall of the top of the sliding block installation through cavity is 0.05 mm-0.20 mm.
The pre-pressing column head and the final pressing column head are respectively in threaded connection with the pressing connecting column.
Compared with the prior art, the utility model, profitable technological effect is:
the pre-pressing column cap and the final-pressing column cap in the utility model can be detachably arranged on the pressing connecting column, and can be reused only by replacement when the pressing column cap is worn and loses efficacy, thereby prolonging the service life of the integral mould; the pre-pressing convex edges crossing the axis are uniformly distributed on the inner wall of the butterfly pre-pressing cavity of the pre-pressing column head, so that the dynamic balance requirement of the molybdenum-tungsten rotating target in the working state can be ensured, a transition layer with a certain interval thickness can be formed on the combination interface of two different metals, the combination strength between different metal layers is effectively improved, and the inner wall of the butterfly pressing cavity of the final pressing column head is a smooth cambered surface so as to ensure the final forming shape of the molybdenum-tungsten target. The bonding strength between different metal layers is effectively enhanced, the separation and block falling phenomena between different metal layers of the butterfly-shaped multilayer metal forming block are reduced or eliminated, and the occurrence of the defective rate of rare and precious metal material products is reduced, so that the use efficiency of materials, workers and equipment is improved, the production cycle of products is shortened, and the technical problems that the mechanical particle occlusion force between two metal layers is weak and the bonding strength between two layers is low and the layering and falling are easily caused in the traditional forming method in the prior art are solved.
(II) the utility model has the advantages of reasonable structure, convenient assembly and disassembly and long service life, and can realize small-batch continuous production.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic view of the structure of a pre-compression column head according to the present invention;
fig. 3 is a schematic bottom view of a pre-compression column head according to the present invention;
fig. 4 is a schematic view of the structure of the final-pressing column head according to the present invention;
fig. 5 is a schematic bottom view of the final-pressing column head of the present invention.
The meaning of the individual reference symbols in the figures is: 1-male die, 2-female die and 3-spring;
101-pressing a block body, 102-pressing a connecting column, 103-pre-pressing a column cap, 104-finally pressing a column cap, 105-positioning column and 106-upper connecting column;
201-base, 202-material slot hole, 203-slide block installation through cavity, 204-slide block, 205-positioning hole, 206-lower connecting column;
10301-a pre-compression column head body, 10302-a butterfly-shaped pre-compression cavity, 10303-a pre-compression ridge and 10304-a first annular bulge;
10401-final pressing column head body, 10402-butterfly pressing cavity, 10403-second annular bulge.
The following examples are provided to explain the present invention in further detail.
Detailed Description
It should be noted that all the components of the present invention are known in the art, and the components are not specifically described.
The following embodiments of the present invention are given, and it should be noted that the present invention is not limited to the following embodiments, and all the equivalent transformations made on the basis of the technical solution of the present application all fall into the protection scope of the present invention.
The utility model provides a butterfly multilayer metal compression molding mould, as shown in fig. 1 to 5, including terrace die 1 and die 2, terrace die 1 includes the suppression block 101, and the bottom demountable installation of suppression block 101 has a pair of centrosymmetric suppression spliced pole 102, and the terminal demountable installation of suppression spliced pole 102 has pre-compression column cap 103 or final compression column cap 104, and the bottom edge of suppression block 101 is provided with a pair of centrosymmetric reference columns 105;
the female die 2 comprises a base 201, the middle part of the base 201 is provided with a pair of material groove holes 202 corresponding to the pressing connecting column 102, a slider mounting through cavity 203 communicated with the material groove holes 202 is formed below the material groove holes 202, a slider 204 is arranged in the slider mounting through cavity 203, and the outer wall of the top of the slider 204 is in clearance fit with the inner wall of the top of the slider mounting through cavity 203; the longest distance between a pair of material slot holes 202 is not less than the width of the sliding block 204; the edge of the upper end face of the female die 2 is provided with a positioning hole 205 corresponding to the positioning column 105;
the pre-pressing column head 103 comprises a pre-pressing column head body 10301 and a butterfly-shaped pre-pressing cavity 10302 formed in the bottom end face of the pre-pressing column head body 10301, and a plurality of pre-pressing protruding ridges 10303 are uniformly arranged on the inner wall of the butterfly-shaped pre-pressing cavity 10302 in a circle;
the final pressing column head 104 comprises a final pressing column head body 10401 and a butterfly-shaped pressing cavity 10402 which is arranged on the bottom end face of the final pressing column head body 10401.
The pressing connecting column 102 on the male die 1 and the sliding block 204 on the female die 2 are made of die steel, preferably Cr12MoV or CrWMn, and other No. 45 steel.
The working process of the technical scheme is as follows: firstly, calculating the mass of first metal powder required by weighing according to the specification of a multilayer metal pressed biscuit to be prepared, and adding the first metal powder into a material groove hole 202 of the scheme through a funnel feeding device; then, starting pretreatment, wherein the male die 1 moves downwards under the action of upper pressure, when a butterfly-shaped prepressing cavity 10302 of a prepressing column cap 103 on the male die 1 is just contacted with first metal powder, the prepressing treatment of the multilayer metal pressing blank is started, a prepressing pressure value is set, when the pressing pressure reaches, the male die 1 moves upwards to a mechanical zero point position under the action of lifting force, the upper surface of the first metal powder is scraped into a butterfly-shaped cambered surface, and the pretreatment of the multilayer metal pressing blank is completed; then calculating and weighing the required second metal powder, adding the second metal powder to the butterfly-shaped surface of the pre-pressed first metal powder, repeating the operation, and scraping the upper surface of the second metal powder into a butterfly-shaped cambered surface; and finally, unscrewing a prepressing column head 103 on a prepressing column body 102 of the punch 1, mounting a final pressing column head 104 on the position of the dismounted prepressing column body 102, after the dismounting is finished, moving the punch 1 downwards under the action of the upper pressure, setting a pressure value of final pressing forming, starting the pressing of the multilayer metal blank, maintaining the pressure for 3-5 min and then releasing the pressure when the pressure value of the final pressing column head 104 reaches the set pressure value, then, moving a slide block 204 in a slide block mounting through cavity 203 of the die 2, and continuously moving the final pressing column head 104 downwards until the multilayer metal pressing block is completely pushed out from a trough hole 7 and vertically falls into the slide block mounting through cavity 103, withdrawing the punch 1 from the trough hole 7 under the action of the ascending force, recovering to the original point of the die, and taking out the processed and formed multilayer metal pressing block to finish the forming processing of the multilayer metal pressing block.
In the technical scheme, the pre-pressing column head 103 and the final pressing column head 104 can be detachably arranged on the pressing connecting column, and can be reused only by being replaced when the pressing column head is worn and failed, so that the service life of the integral die is prolonged; the pre-pressing ridges 10303 crossing the axis are uniformly distributed on the inner wall of the butterfly pre-pressing cavity 10302 of the pre-pressing column cap 103, so that the dynamic balance requirement of the molybdenum-tungsten rotary target in the working state can be met, a transition layer with a certain interval thickness can be formed on the bonding interface of two different metals, the bonding strength between different metal layers is effectively improved, and the inner wall of the butterfly pressing cavity 10402 of the final pressing column cap 104 is a smooth cambered surface so as to ensure the final forming shape of the molybdenum-tungsten target. The bonding strength between different metal layers is effectively enhanced, the separation and block falling phenomena between different metal layers of the butterfly-shaped multilayer metal forming block are reduced or eliminated, and the occurrence of the defective rate of rare and precious metal material products is reduced, so that the use efficiency of materials, workers and equipment is improved, the production cycle of products is shortened, and the technical problems that the mechanical particle occlusion force between two metal layers is weak and the bonding strength between two layers is low and the layering and falling are easily caused in the traditional forming method in the prior art are solved.
Specifically, the positioning column 105 is sleeved with the spring 3, the upper end of the spring 3 is fixed to the outer edge of the top of the positioning column 105, and when pressing is finished, the compressed spring 3 generates upward force, so that the male die 1 can move upwards more easily, and the outer diameter of the spring 3 is larger than the inner diameter of the positioning hole 205.
Specifically, an upper connecting column 106 is detachably mounted at the center of the top of the pressing block body 101; the bottom center of the base 201 is detachably provided with a lower connecting column 206, the upper connecting column 106 is used for being connected with an upper moving platform of the pressing equipment, and the lower connecting column 206 is used for being connected with a lower fixing platform of the pressing equipment.
Specifically, the outer wall of the bottom of the pre-compression column head body 10301 is provided with a first annular protrusion 10304.
Specifically, a second annular protrusion 10403 is disposed on an outer wall of the bottom of the final pressing column head body 10401.
Specifically, the outer walls of the pre-pressing column head 103 and the final-pressing column head 104 are in clearance fit with the inner wall of the material slot 202, so that the pre-pressing column head 103 and the final-pressing column head 104 can smoothly enter the material slot 202 for pressing.
Preferably, the clearance between the outer walls of the pre-compaction column head 103 and the final compaction column head 104 and the inner wall of the trough hole 202 ranges from 0.05mm to 0.20mm.
Specifically, the gap between the outer wall of the top of the sliding block 204 and the inner wall of the top of the sliding block installation through cavity 203 is in a range of 0.05 mm-0.20 mm, so that waste materials generated in the pressing process can fall into the sliding block installation through cavity.
Specifically, the pre-pressing column head 103 and the final-pressing column head 104 are respectively in threaded connection with the pressing connecting column 102, so that the installation and the disassembly are convenient.
Claims (9)
1. The butterfly-shaped multilayer metal compression molding die is characterized by comprising a male die (1) and a female die (2), wherein the male die (1) comprises a compression block body (101), a pair of compression connecting columns (102) with central symmetry are detachably mounted at the bottom of the compression block body (101), a pre-compression column cap (103) or a final-compression column cap (104) is detachably mounted at the tail end of each compression connecting column (102), and a pair of positioning columns (105) with central symmetry are arranged at the edge of the bottom of the compression block body (101);
the female die (2) comprises a base (201), a pair of material groove holes (202) corresponding to the pressing connecting columns (102) are formed in the middle of the base (201), a slider mounting through cavity (203) communicated with the material groove holes (202) is formed below the material groove holes (202), a slider (204) is arranged in the slider mounting through cavity (203), and the outer wall of the top of the slider (204) is in clearance fit with the inner wall of the top of the slider mounting through cavity (203); the longest distance between the pair of trough holes (202) is not less than the width of the sliding block (204); the edge of the upper end face of the female die (2) is provided with a positioning hole (205) corresponding to the positioning column (105);
the pre-pressing column head (103) comprises a pre-pressing column head body (10301) and a butterfly-shaped pre-pressing cavity (10302) formed in the bottom end face of the pre-pressing column head body (10301), and a plurality of pre-pressing protruding ridges (10303) are uniformly arranged on the inner wall of the butterfly-shaped pre-pressing cavity (10302) in a circle;
the final pressing column head (104) comprises a final pressing column head body (10401) and a butterfly pressing cavity (10402) formed in the end face of the bottom of the final pressing column head body (10401).
2. The butterfly-shaped multilayer metal press-forming die as claimed in claim 1, wherein the positioning column (105) is sleeved with a spring (3), the upper end of the spring (3) is fixed to the outer edge of the top of the positioning column (105), and the outer diameter of the spring (3) is larger than the inner diameter of the positioning hole (205).
3. The butterfly multilayer metal press-forming die of claim 1, wherein an upper connecting column (106) is detachably mounted at the top center of the pressing block body (101); the center of the bottom of the base (201) is detachably provided with a lower connecting column (206).
4. The butterfly-shaped multilayer metal press-forming die of claim 1, wherein a first annular protrusion (10304) is formed on the outer wall of the bottom of the pre-pressing column head body (10301).
5. The butterfly-shaped multilayer metal press-forming die of claim 1, wherein a second annular protrusion (10403) is formed on the outer wall of the bottom of the final-pressing column head body (10401).
6. The butterfly-shaped multilayer metal press-forming die of claim 1, wherein the outer walls of the pre-pressing column head (103) and the final-pressing column head (104) are in clearance fit with the inner wall of the trough hole (202).
7. The butterfly-shaped multilayer metal press-forming die of claim 6, wherein the clearance between the outer walls of the pre-pressing stud (103) and the final-pressing stud (104) and the inner wall of the trough hole (202) ranges from 0.05mm to 0.20mm.
8. The butterfly-shaped multilayer metal press-forming die of claim 1, wherein a gap between the outer wall of the top of the slider (204) and the inner wall of the top of the slider installation through cavity (203) is in a range of 0.05mm to 0.20mm.
9. The butterfly-shaped multilayer metal press-forming die of claim 1, wherein the pre-pressing stud (103) and the final pressing stud (104) are respectively in threaded connection with the pressing connection column (102).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222944176.5U CN218611684U (en) | 2022-11-04 | 2022-11-04 | Butterfly-shaped multilayer metal compression molding die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222944176.5U CN218611684U (en) | 2022-11-04 | 2022-11-04 | Butterfly-shaped multilayer metal compression molding die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218611684U true CN218611684U (en) | 2023-03-14 |
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ID=85423109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222944176.5U Active CN218611684U (en) | 2022-11-04 | 2022-11-04 | Butterfly-shaped multilayer metal compression molding die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218611684U (en) |
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- 2022-11-04 CN CN202222944176.5U patent/CN218611684U/en active Active
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