CN218134455U - Forming die of high proportion tungsten alloy ring - Google Patents
Forming die of high proportion tungsten alloy ring Download PDFInfo
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- CN218134455U CN218134455U CN202222351217.XU CN202222351217U CN218134455U CN 218134455 U CN218134455 U CN 218134455U CN 202222351217 U CN202222351217 U CN 202222351217U CN 218134455 U CN218134455 U CN 218134455U
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Abstract
The utility model relates to a forming die of high proportion tungsten alloy ring, including last mould assembly and lower mould assembly, go up mould assembly include with the clamp plate, go up the die, lower mould assembly includes outer die sleeve, interior mold core, and outer die sleeve and interior mold core form the moulding-die chamber that corresponds the die, and its technical essential is: the bottom surface of die cavity is the cascaded bottom surface of second grade, the cascaded bottom surface of second grade comprises the low level face that is close to the center and the high level face of keeping away from the center, low level face department is equipped with first annular roof, a plurality of main ejector pins are connected to the lower surface of first annular roof, high level face department is equipped with second annular roof, a plurality of supplementary ejector pins are connected to the lower surface of second annular roof, a plurality of radial air vents have been seted up to the work position side that the inner mold core lateral wall corresponds first annular roof, a plurality of air vent ways have been seted up to the work position side that outer die sleeve corresponds second annular roof. The die solves the problem that the existing forming die is easy to cause the breakage of the thin-wall flange when pressing the tungsten alloy ring with the thin-wall flange, and the rejection rate is greatly reduced.
Description
Technical field
The utility model relates to a tungsten alloy product production facility, concretely relates to forming die of high proportion tungsten alloy ring.
Background Art
The high specific gravity tungsten alloy is an alloy material which is formed by taking tungsten as a base material (the tungsten content is 85wt% -99 wt%) and adding a small amount of metal bonding agents such as Ni, cu, fe, co, mo, cr and the like, and is also called high-density tungsten alloy or heavy alloy. The material has remarkable characteristics in physical properties such as density, strength, hardness, ductility, conductivity/heat and the like, so that the material is widely applied to industries such as national defense industry, aerospace industry, medical industry, electrical industry and the like.
The high specific gravity tungsten alloy ring is one of high specific gravity tungsten alloy products, and is generally formed by firstly adopting a forming die to form a tungsten alloy ring blank, then sintering the tungsten alloy ring blank, cooling to a set temperature after sintering, and finally shaping by utilizing a shaping die. The existing forming die comprises an upper die assembly and a lower die assembly, and has the following problems in the using process: 1. for the tungsten alloy ring with the thin-wall flange, when demoulding is carried out after the die pressing is finished, the thin-wall flange is easy to break the wall and damage, particularly the corner position, waste products and resources are easy to cause, and the later repair is time-consuming; 2. during the use, the uide bushing of being connected with last mould subassembly place clamp plate and the guide post of being connected with lower mould subassembly place base mutually support, play the work guide effect, but the uide bushing is easy wearing and tearing after long-term the use with the guide post, causes the mould pressing deviation easily, causes mould subassembly damage when serious.
Summary of the invention
The utility model aims at providing a forming die of rational in infrastructure, use reliable high proportion tungsten alloy ring, solve current forming die and easily cause the damaged problem of thin wall flange when the tungsten alloy ring that the suppression has the thin wall flange, greatly reduced rejection rate has simultaneously prolonged the life of last mould subassembly.
The technical scheme of the utility model is that:
the utility model provides a forming die of high proportion tungsten alloy ring, includes mould assembly and lower mould assembly, go up the mould assembly and include the clamp plate of being connected with the pressure power supply, be located the last mould of clamp plate lower surface, lower mould assembly includes outer die sleeve, locates the interior mold core at outer die sleeve center, the bottom of outer die sleeve and interior mold core is connected as an organic whole and upper portion forms the moulding-die chamber that corresponds the die, and its technical essential is: the bottom surface of the compression die cavity is a two-stage stepped bottom surface, the two-stage stepped bottom surface is formed by a low-level surface close to the center and a high-level surface far away from the center, a first annular top plate is arranged at the low-level surface, the lower surface of the first annular top plate is connected with a plurality of main ejector rods, a second annular top plate is arranged at the high-level surface, a plurality of auxiliary ejector rods are connected with the lower surface of the second annular top plate, the lower ends of the main ejector rods and the auxiliary ejector rods penetrate through the bottom of an outer die sleeve respectively to be connected with a jacking equipment connecting plate, a limiting table top corresponding to the first annular top plate and the second annular top plate is arranged in the outer die sleeve, a plurality of radial vent holes are formed in the side surface, corresponding to the first annular top plate, of the side wall of the inner die core, are communicated with axial vent holes in the lower portion of the inner die core, the lower ends of the axial vent holes are communicated with a compression gas source pipeline through pipe joints, a plurality of vent hole paths are formed in the side surface, corresponding to the second annular top plate, and the tail ends of the vent holes are communicated with the compression gas source pipeline through pipe joints.
The forming die of the high-specific gravity tungsten alloy ring is characterized in that the upper punch die consists of a cylinder type main punch die and a split type annular auxiliary punch die sleeved on the lower portion of the peripheral surface of the cylinder type main punch die, a plurality of vertical guide rails are uniformly arranged at the outer edge of the upper surface of the annular auxiliary punch die, a vertical sliding groove corresponding to the vertical guide rails is formed in the peripheral surface of the cylinder type main punch die, the vertical sliding groove and the vertical guide rails are fixed by screws, a high-level surface of the secondary stepped bottom surface corresponds to the split type annular auxiliary punch die of the upper punch die, a low-level surface of the secondary stepped bottom surface corresponds to the cylinder type main punch die of the upper punch die, the split type annular auxiliary punch die is flush with the lower surface of the cylinder type main punch die at the working position, and slides upwards along the vertical sliding groove when not participating in the die so as to avoid the stepped high-level surface of the secondary bottom surface.
In the forming die for the high-specific gravity tungsten alloy ring, the positioning column concentric with the inner die core is fixed in the center of the top surface of the inner die core, the roller assemblies are uniformly supported on the peripheries of the upper ends of the positioning column, and rollers of the roller assemblies are in rolling contact with the inner wall of the cylindrical main stamping die of the upper stamping die so as to play a role in downward guiding.
In the forming die for the high-specific gravity tungsten alloy ring, the barrel type main stamping die of the upper stamping die is internally provided with the stamping die vent hole for releasing gas in the stamping die cavity in the stamping operation process.
The utility model has the advantages that:
1. the press forming of the tungsten alloy ring with the thin-wall flange is realized through the matching of the two-stage stepped bottom surface of the press die cavity and the upper punch die, referring to fig. 4, the main ring body part of the tungsten alloy ring is firstly formed, referring to fig. 5, the thin-wall flange part of the tungsten alloy ring is formed, referring to fig. 6, after the press forming is finished, the first annular top plate and the second annular top plate descend to leave the inner end positions of the radial vent holes and the vent hole paths, a compressed gas source is started to release the compressed gas to the press die cavity, the compressed gas is mixed between the formed tungsten alloy ring with the thin-wall flange and the inner wall of the press die cavity, and then, as shown in fig. 7, under the action of the jacking device, the first annular top plate and the second annular top plate ascend to jack the tungsten alloy ring with the thin-wall flange to separate the press die cavity. The structural form and the demoulding form avoid the wall breaking damage of the thin-wall flange, particularly the corner position, greatly reduce the rejection rate and save resources.
2. Through the gyro wheel of wheel components and the inner wall rolling contact of the main die of cylinder of last die, make the during operation, the die is assisted to the high level face of the cascaded bottom surface of second grade and the split type annular of last die and corresponds each other, and the low level face of the cascaded bottom surface of second grade corresponds each other with the main die of cylinder of last die, avoids the dislocation, avoids last die assembly to bump and damages increase of service life.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a bottom view of the upper die assembly;
FIG. 3 is a top view of the upper die assembly;
FIG. 4 is a schematic diagram of a first operation process of the present invention;
FIG. 5 is a schematic diagram of a second operation process of the present invention;
fig. 6 is a schematic diagram of a third working process of the present invention;
fig. 7 is a schematic diagram of a fourth working process of the present invention.
In the figure: 1. the die comprises a pressure plate, 2 vertical guide rails, 3 a cylindrical main die, 4 an annular auxiliary die, 5 a die vent hole, 6 a roller assembly, 7 a positioning column, 8 an outer die sleeve, 9 an inner die core, 10 a die pressing cavity, 11 a first annular top plate, 12 a second annular top plate, 13 a vent hole path, 14 a limiting table top, 15 an auxiliary ejector rod, 16 a main ejector rod, 17 radial vent holes, 18 axial vent holes, 19 a jacking equipment connecting plate, 20 a main ring body part, 21 a thin-wall flange part and 22 a tungsten alloy ring.
Detailed description
The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 7, the forming die for the high specific gravity tungsten alloy ring comprises an upper die assembly and a lower die assembly. The upper die assembly comprises a pressing plate 1 connected with a pressure power source and an upper die positioned on the lower surface of the pressing plate 1. The lower die component comprises an outer die sleeve 8 and an inner die core 9 arranged at the center of the outer die sleeve 8. The bottom parts of the outer die sleeve 8 and the inner die core 9 are connected into a whole, and the upper part of the outer die sleeve and the upper part of the inner die core form a die cavity 10 corresponding to an upper punch die.
The bottom surface of the molding cavity 10 is a two-step bottom surface, and the two-step bottom surface is composed of a low surface close to the center and a high surface far from the center. A first annular top plate 11 is arranged on the low level surface, and the lower surface of the first annular top plate 11 is connected with a plurality of main top rods 16. And a second annular top plate 12 is arranged on the high-level surface, and the lower surface of the second annular top plate 12 is connected with a plurality of auxiliary ejector rods 15. The lower ends of the main ejector rod 16 and the auxiliary ejector rod 15 respectively penetrate through the bottom of the outer die sleeve 8 to be connected with a jacking equipment connecting plate 19. The die is characterized in that a limiting table surface 14 corresponding to the first annular top plate and the second annular top plate is arranged in the outer die sleeve 8, a plurality of radial vent holes 17 are formed in the side surface, corresponding to the first annular top plate 11, of the side wall of the inner die core 9, each radial vent hole 17 is communicated with an axial vent hole 18 in the lower portion of the inner die core 9, the lower end of each axial vent hole 18 is communicated with a compressed air source pipeline through a pipe joint, a plurality of vent hole paths 13 are formed in the side surface, corresponding to the second annular top plate 12, of the outer die sleeve 8, and the tail end of each vent hole path 13 is communicated with the compressed air source pipeline through the pipe joint.
In this embodiment, the upper die comprises a main cylindrical die 3 and a split annular auxiliary die 4 sleeved on the lower portion of the outer peripheral surface of the main cylindrical die 3. The outer edge of the upper surface of the annular auxiliary stamping die 4 is provided with a plurality of vertical guide rails 2, the outer peripheral surface of the cylinder type main stamping die 3 is provided with a vertical sliding groove corresponding to the vertical guide rails 2, the vertical sliding groove and the vertical guide rails 2 are fixed by screws, the high-level surface of the secondary stepped bottom surface corresponds to the split type annular auxiliary stamping die 4 of the upper stamping die, the low-level surface of the secondary stepped bottom surface corresponds to the cylinder type main stamping die 3 of the upper stamping die, the split type annular auxiliary stamping die 4 is flush with the lower surface of the cylinder type main stamping die 3 when in a working position, and slides upwards along the vertical sliding groove when not participating in stamping, so as to avoid the high-level surface of the secondary stepped bottom surface. The height of the split type annular auxiliary punching die 4 can be changed by manual adjustment in the working process. A positioning column 7 concentric with the inner mold core 9 is fixed at the center of the top surface of the inner mold core 9, a roller assembly 6 is uniformly supported at the periphery of the upper end of the positioning column 7, and a roller of the roller assembly 6 is used for rolling contact with the inner wall of the cylindrical main stamping die 3 of the upper stamping die so as to play a role in downward guiding. The cylindrical main die 3 of the upper die is internally provided with a die vent hole 5 for releasing gas in a die cavity 10 during the die pressing operation.
In operation, referring to fig. 4, the split type annular auxiliary die 4 is located at the avoidance position, and the main ring body part 20 of the tungsten alloy ring is formed by using the cylindrical main die 3; then referring to fig. 5, the split type annular auxiliary die 4 is adjusted to a working position, and the cylindrical main die 3 and the split type annular auxiliary die 4 are utilized to jointly form a thin-wall flange part 21 of the tungsten alloy ring; after pressing is completed, referring to fig. 6, the first annular top plate 11 and the second annular top plate 12 move downwards to make the radial vent holes 17 and the inner end positions of the vent hole paths 13 clear, a compressed gas source is started to release compressed gas to the pressing die cavity 10, the compressed gas enters between the formed tungsten alloy ring 22 with the thin-wall flange and the inner wall of the pressing die cavity 10, and the tungsten alloy ring 22 with the thin-wall flange is flexibly separated from the pressing die cavity 10; finally, as shown in fig. 7, under the action of the jacking device, the first annular top plate 11 and the second annular top plate 12 ascend, and the tungsten alloy ring 22 with the thin-wall flange is jacked to be separated from the die cavity 10.
The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should be covered by the present patent.
Claims (4)
1. The utility model provides a forming die of high proportion tungsten alloy ring, includes mould assembly and lower mould assembly, go up the mould assembly and include the clamp plate of being connected with the pressure power supply, be located the last mould of clamp plate lower surface, lower mould assembly includes outer die sleeve, locates the interior mold core at outer die sleeve center, the die cavity that as an organic whole and upper portion formation correspond the die is connected to the bottom of outer die sleeve and interior mold core, its characterized in that: the bottom surface of the compression die cavity is a two-stage stepped bottom surface, the two-stage stepped bottom surface is formed by a low-level surface close to the center and a high-level surface far away from the center, a first annular top plate is arranged at the low-level surface, the lower surface of the first annular top plate is connected with a plurality of main ejector rods, a second annular top plate is arranged at the high-level surface, a plurality of auxiliary ejector rods are connected with the lower surface of the second annular top plate, the lower ends of the main ejector rods and the auxiliary ejector rods penetrate through the bottom of an outer die sleeve respectively to be connected with a jacking equipment connecting plate, a limiting table top corresponding to the first annular top plate and the second annular top plate is arranged in the outer die sleeve, a plurality of radial vent holes are formed in the side surface, corresponding to the first annular top plate, of the side wall of the inner die core, are communicated with axial vent holes in the lower portion of the inner die core, the lower ends of the axial vent holes are communicated with a compression gas source pipeline through pipe joints, a plurality of vent hole paths are formed in the side surface, corresponding to the second annular top plate, and the tail ends of the vent holes are communicated with the compression gas source pipeline through pipe joints.
2. The mold for molding a high specific gravity tungsten alloy ring according to claim 1, wherein: the upper punch die is composed of a main barrel-type punch die and a split annular auxiliary punch die sleeved on the lower portion of the outer peripheral face of the main barrel-type punch die, a plurality of vertical guide rails are evenly arranged on the outer edge of the upper surface of the annular auxiliary punch die, vertical sliding grooves corresponding to the vertical guide rails are formed in the outer peripheral face of the main barrel-type punch die, the vertical sliding grooves and the vertical guide rails are fixed through screws, the high-level surface of the second-level stepped bottom face corresponds to the split annular auxiliary punch die of the upper punch die, the low-level surface of the second-level stepped bottom face corresponds to the main barrel-type punch die of the upper punch die, and the split annular auxiliary punch die is flush with the lower surface of the main barrel-type punch die when in the working position.
3. The mold for molding a high specific gravity tungsten alloy ring according to claim 1, wherein: and a positioning column concentric with the inner mold core is fixed at the center of the top surface of the inner mold core, the periphery of the upper end of the positioning column uniformly supports a roller assembly, and a roller of the roller assembly is used for rolling contact with the inner wall of the cylindrical main stamping die of the upper stamping die.
4. The forming die of the high specific gravity tungsten alloy ring according to claim 1, characterized in that: and a pressing die vent hole is formed in the cylindrical main punching die of the upper punching die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222351217.XU CN218134455U (en) | 2022-09-05 | 2022-09-05 | Forming die of high proportion tungsten alloy ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222351217.XU CN218134455U (en) | 2022-09-05 | 2022-09-05 | Forming die of high proportion tungsten alloy ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218134455U true CN218134455U (en) | 2022-12-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222351217.XU Active CN218134455U (en) | 2022-09-05 | 2022-09-05 | Forming die of high proportion tungsten alloy ring |
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| Country | Link |
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| CN (1) | CN218134455U (en) |
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2022
- 2022-09-05 CN CN202222351217.XU patent/CN218134455U/en active Active
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