CN212734143U - Forming die of powder metallurgy water injection mandrel throttle valve body blank - Google Patents
Forming die of powder metallurgy water injection mandrel throttle valve body blank Download PDFInfo
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- CN212734143U CN212734143U CN202021455825.XU CN202021455825U CN212734143U CN 212734143 U CN212734143 U CN 212734143U CN 202021455825 U CN202021455825 U CN 202021455825U CN 212734143 U CN212734143 U CN 212734143U
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Abstract
The utility model provides a forming die of powder metallurgy water injection mandrel blank, belong to powder metallurgy forming die technical field, it adopts cobalt base alloy rod as the raw materials to have overcome prior art, processing difficulty and process time are long, machining efficiency is low, manufacturing cost's problem has been increaseed, the characteristic is that install down the stamping and go up the stamping in the cavity in the rectangle of bed die, it is protruding with the second half cylinder that it is protruding to go up the stamping lower surface to be equipped with 2 bellied first half cylinder that are parallel to each other, it is protruding to be equipped with the third half cylinder of slope between first half cylinder arch and second half cylinder arch, form the protruding half cylinder arch of similar zigzag，The upper surface of the lower punch is provided with the semicircular groove which is axially communicated, and the lower punch has the beneficial effect thatThe semi-cylindrical throttle valve body with the positioning edge and the concave semi-circular fluid channel structure similar to the Z shape in the product are manufactured in the blank stage in the powder forming stage, so that the production efficiency is improved, the production cost is reduced, and the material is saved.
Description
Technical Field
The utility model belongs to the technical field of powder metallurgy forming die, in particular to forming die of powder metallurgy water distributor throttle valve body blank.
Background
In the prior art, a throttle body applied to a water distributor in the petroleum industry is a combined cylindrical throttle body formed by combining two semi-cylindrical throttle bodies, wherein the shape of each semi-cylindrical throttle body product is similar to a semi-cylinder cut at the center of the cylinder, a Z-shaped similar concave semi-circular fluid channel is processed on a processing plane of the semi-cylinder, the combined semi-cylindrical throttle body is a cylindrical throttle body, one end of the combined semi-cylindrical throttle body is a water inlet, the other end of the combined semi-cylindrical throttle body is a water outlet, a positioning edge is processed at one end of the combined semi-cylindrical throttle body, a Z-shaped similar circular fluid channel is formed in the combined semi-cylindrical throttle body, a cobalt-based alloy bar with the hardness of HRC51-55 is used as; because the cobalt-based alloy bar has high hardness and irregular processing shape, the positioning device is complex, the processing is difficult, the processing time is long, the processing efficiency is low, and the production cost is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that overcome prior art's weak point, through designing a powder metallurgy forming die, the concave semi-circular fluid passage who provides the semi-cylindrical throttle valve body that will form combination formula cylindrical throttle valve body and its inside similar zigzag makes through powder metallurgy technology, avoids subsequent spark-erosion machining or machining center's ball sword processing to improve production efficiency, reduction in production cost's a forming die of powder metallurgy water distributor throttle valve body blank.
The utility model adopts the technical proposal that the die comprises a female die, an upper punch and a lower punch, wherein a rectangular hollow cavity is arranged at the center of the female die, the lower punch is arranged at the middle lower end of the rectangular hollow cavity of the female die, the upper punch is arranged at the upper end of the lower punch, and a pressed compact cavity is formed between the upper punch and the lower punch; the lower surface of the upper punch, which is in contact with the powder, is provided with 2 first semi-cylindrical bulges and second semi-cylindrical bulges which are parallel to each other and protrude downwards, a third semi-cylindrical bulge which is inclined is arranged between the first semi-cylindrical bulges and the second semi-cylindrical bulges, and the third semi-cylindrical bulge is provided with two bulgesThe ends of the first and second semi-cylindrical protrusions intersect with each other to form a Z-shaped semi-cylindrical protrusion，The upper surface of the lower punch which is contacted with the powder is provided with a semicircular groove which is axially communicated from the front surface 3-1 of the lower punch to the rear surface 3-3 of the lower punch.
The included angle between the axial center line of the third semi-cylindrical bulge and the horizontal line is 40-45 degrees.
The radius of the semicircular groove is 2-5 mm.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model realizes that the semi-cylindrical throttle valve body with the positioning edge and the concave semi-circular fluid channel structure similar to the Z shape in the product are manufactured in the blank stage in the powder forming stage, and then the production of the product can be completed through the subsequent sintering and turning; the subsequent electric spark machining or ball cutter machining of a machining center in the prior art is cancelled, the production efficiency is improved, and the production cost is reduced.
(2) Adopt the forming die of powder metallurgy water distributor throttle valve body blank directly adopts cobalt base alloy powder shaping can produce semi-cylindrical throttle valve body blank, has solved because cobalt base alloy rod own hardness is high, and the machined shape is irregular again, therefore positioner is complicated, still has material saving's advantage when processing difficulty and the long problem of process time.
Drawings
FIG. 1 is a schematic view of a prior art composite cylindrical throttle body;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
fig. 3 is a schematic structural diagram of the present invention;
FIG. 4 is a top view of FIG. 3;
figure 5 is a front view of the upper punch of the present invention,
figure 6 is a bottom view of figure 5,
figure 7 is a front view of the lower punch of the present invention,
fig. 8 is a top view of fig. 7.
In the figure:
101. a first semicircular groove; 102. a second semicircular groove; 103. a third semicircular groove;
104. positioning the edge; 105. a water inlet; 106. a water outlet;
1. a female die;
2. punching by an upper die;
2-1, a first semi-cylindrical bulge; 2-2. a second semi-cylindrical protrusion;
2-3. a third semi-cylindrical protrusion; 2-4, punching the lower end face of the upper die;
3. punching a lower die;
3-1, punching the front surface of the lower die; 3-2, semicircular grooves;
3-3, punching the rear surface of the lower die; 3-4, punching the upper end face of the lower die;
4. and (5) pressing a blank cavity.
Detailed Description
The following provides a detailed description of the invention in conjunction with the drawings,
fig. 1 and fig. 2 are schematic structural diagrams of a combined cylindrical throttle body in the prior art, and specifically, 2 parallel first semicircular grooves 101 and second semicircular grooves 102 are respectively processed on the cross sections of 2 semicylinders cut at the center of a cylinder parallel to the axis of the cylinder, the 2 parallel first semicircular grooves 101 and 2 second semicircular grooves 102 are communicated through an inclined third semicircular groove 103, a positioning edge 104 is processed at one end, when in use, 2 semicylindrical throttle bodies are combined to form a combined cylindrical throttle body, a circular water inlet 105 is formed by 2 first semicircular grooves 101 at one end of the combined cylindrical throttle body, a circular water outlet 106 is formed by 2 second semicircular grooves 102 at the other end of the combined cylindrical throttle body, and a circular fluid channel similar to a Z shape is correspondingly formed in the product.，The annular positioning rim is formed by 2 positioning rims 104.
As shown in fig. 3 and 4, the utility model adopts a technical scheme that the die comprises a female die 1, a rectangular hollow cavity is arranged at the center of the female die 1, a lower punch 3 is arranged at the lower end of the rectangular hollow cavity of the female die 1, an upper punch 2 is arranged at the upper end of the lower punch 3, and a green compact cavity 4 is formed between the upper punch 2 and the lower punch 3;
as shown in fig. 5 and 6, the upper punch 2 has a cuboid structure, 2 first semi-cylindrical protrusions 2-1 and second semi-cylindrical protrusions 2-2 which are parallel to each other and protrude downwards are arranged on the lower surface 2-4 of the upper punch contacting with the powder, an inclined third semi-cylindrical protrusion 2-3 is arranged between the first semi-cylindrical protrusion 2-1 and the second semi-cylindrical protrusion 2-2, two ends of the third semi-cylindrical protrusion 2-3 are respectively intersected with the first semi-cylindrical protrusion 2-1 and the second semi-cylindrical protrusion 2-2 to form a semi-cylindrical protrusion similar to a zigzag shape, and an included angle alpha between the axial center line of the third semi-cylindrical protrusion 2-3 and the horizontal line is 40-45 degrees;
as shown in figures 7 and 8, the lower punch 3 is also of a cuboid structure, a semicircular groove 3-2 which is axially communicated from the front surface 3-1 of the lower punch to the rear surface 3-3 of the lower punch is formed in the upper surface 3-4 of the lower punch which is in contact with the powder, the radius of the semicircular groove 3-2 is 2-5 mm, the lower punch 3 takes the problem of sharp corner into consideration, and an arc transition is formed between the upper surface 3-4 and the semicircular groove 3-2.
When the die is used, the female die 1 and the lower punch 3 are combined and placed on a platform of a press, cobalt-based alloy powder with set weight is added into a semicircular groove 3-2 of the lower punch 3 and a rectangular hollow cavity of the female die 1, the upper punch 2 is placed at the upper end of the lower punch 3 in the female die 1, and a green compact cavity 4 is formed between the upper punch 2 and the lower punch 3; the press runs downwards, and a semi-cylindrical throttle valve blank with a positioning edge at one end and a Z-shaped upper surface is pressed by utilizing the fluidity of powder; and sintering and turning to produce semi-cylindrical throttle body finished parts, and combining 2 semi-cylindrical throttle bodies to form the combined cylindrical throttle body.
Claims (3)
1. A forming die for a throttle valve body blank of a powder metallurgy water distributor comprises a female die (1), an upper punch (2) and a lower punch (3), and is characterized in that a rectangular hollow cavity is arranged in the center of the female die (1), the lower end of the rectangular hollow cavity of the female die (1) is provided with the lower punch (3), the upper end of the lower punch (3) is provided with the upper punch (2), and a green compact cavity (4) is formed between the upper punch (2) and the lower punch (3); the lower surface (2-4) of the upper punch, which is contacted with the powder, of the upper punch (2) is provided with 2 first semi-cylindrical bulges (2-1) and second semi-cylindrical bulges (2-2) which are parallel to each other and protrude downwards, an inclined third semi-cylindrical bulge (2-3) is arranged between the first semi-cylindrical bulge (2-1) and the second semi-cylindrical bulge (2-2), two ends of the third semi-cylindrical bulge (2-3) are respectively intersected with the first semi-cylindrical bulge (2-1) and the second semi-cylindrical bulge (2-2) to form a semi-cylindrical bulge similar to a Z shape, a semicircular groove (3-2) which is axially communicated from the front surface (3-1) of the lower punch to the rear surface (3-3) of the lower punch is arranged on the upper surface (3-4) of the lower punch which is contacted with the powder.
2. The forming die for the throttle body blank of the powder metallurgy water distributor according to claim 1, wherein the included angle between the axial center line of the third semi-cylindrical protrusion (2-3) and the horizontal line is 40-45 degrees.
3. The forming die for the throttle body blank of the powder metallurgy water distributor according to claim 1 or 2, wherein the radius of the semicircular groove (3-2) is 2-5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021455825.XU CN212734143U (en) | 2020-07-22 | 2020-07-22 | Forming die of powder metallurgy water injection mandrel throttle valve body blank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021455825.XU CN212734143U (en) | 2020-07-22 | 2020-07-22 | Forming die of powder metallurgy water injection mandrel throttle valve body blank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212734143U true CN212734143U (en) | 2021-03-19 |
Family
ID=75037428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021455825.XU Active CN212734143U (en) | 2020-07-22 | 2020-07-22 | Forming die of powder metallurgy water injection mandrel throttle valve body blank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212734143U (en) |
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2020
- 2020-07-22 CN CN202021455825.XU patent/CN212734143U/en active Active
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