CN112008345A - Manufacturing process of quick-opening valve rod of faucet - Google Patents
Manufacturing process of quick-opening valve rod of faucet Download PDFInfo
- Publication number
- CN112008345A CN112008345A CN202010900900.7A CN202010900900A CN112008345A CN 112008345 A CN112008345 A CN 112008345A CN 202010900900 A CN202010900900 A CN 202010900900A CN 112008345 A CN112008345 A CN 112008345A
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- Prior art keywords
- blank
- quick
- valve rod
- opening valve
- positioning
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 31
- 229910052751 metal Inorganic materials 0.000 claims abstract description 22
- 239000002184 metal Substances 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 17
- 238000004080 punching Methods 0.000 claims abstract description 15
- 238000007493 shaping process Methods 0.000 claims abstract description 8
- 238000005520 cutting process Methods 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 238000003801 milling Methods 0.000 claims abstract description 7
- 238000001125 extrusion Methods 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000000137 annealing Methods 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 6
- 239000010935 stainless steel Substances 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 4
- 230000003068 static effect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005495 investment casting Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/001—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass valves or valve housings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention discloses a manufacturing process of a quick-opening valve rod of a faucet, which sequentially comprises the steps of 1, heating and cutting, shaping, punching, positioning, primary stretching, primary extruding, secondary positioning, punching, secondary stretching, secondary extruding, milling and pushing; eight procedures are adopted to obtain the finished product of the quick-opening valve rod. Compared with the prior art, the manufacturing process is simple to operate, the spline and the two positioning bolts are formed in the same process step by step, the problem that the main body of the quick-opening valve rod is likely to deform and/or the precision is not high in step-by-step processing is solved, in addition, the two bulges are pushed by adopting a pushing mode to form the positioning bolts obviously protruding out of the annular head, the operation is simple, the protrusion of the positioning bolts is obvious, the positioning bolt is also suitable for metal wires with high hardness, and the precision of the finished quick-opening valve rod is ensured.
Description
Technical Field
The invention relates to a manufacturing process of a valve rod, in particular to a manufacturing process of a quick-opening valve rod of a faucet.
Background
The quick-opening valve element comprises a valve element shell installed in the faucet, a rotatable quick-opening valve rod is installed in the valve element shell, one end of the quick-opening valve rod is connected to the movable valve plate in a clamped mode, the movable valve plate and the static valve plate are attached to each other, the static valve plate is fixedly installed in the valve element shell, two opposite water inlet through holes are formed in the static valve plate, and a water outlet through hole is formed in the movable valve plate. When the quick-opening valve rod rotates, the valve plate can be driven to rotate, and therefore opening and closing and flow control of the faucet are achieved. The quick-opening valve rod is used as an important accessory of the quick-opening valve core, the production and processing cost is high, and the popularization and the application of the quick-opening valve core are directly influenced.
The general quick-opening valve rod is manufactured by adopting the processes of precision casting, stamping and precision turning, the quality of a product processed by the manufacturing process is reliable, but multiple devices are required to be adopted for multiple processing, the manufacturing process is complicated, the device requirement is high, and the production efficiency is influenced.
In view of the above, a "production process of a quick-opening valve rod of a faucet and a special die thereof" with application number "201110258092. X" is applied, and the process sequentially comprises the following steps: the quick-opening valve rod manufactured in the way is relatively low in production cost and high in production efficiency. However, according to the quick-opening valve rod manufactured by the process, the two positioning bolts are formed by extruding and stretching twice, the problem that the protrusion of the positioning bolts formed by extruding twice is not obvious due to insufficient materials or high material hardness exists, the precision of the quick-opening valve rod is low, and the quick-opening valve rod cannot be used is solved.
Disclosure of Invention
The invention aims to provide a manufacturing process of a quick-opening valve rod of a faucet, which is simple in manufacturing process, high in finished product precision and suitable for metal materials with high hardness, and a manufactured positioning bolt is obvious in protrusion and not easy to deform.
In order to achieve the above purpose, the solution of the invention is as follows:
a manufacturing process of a quick-opening valve rod of a faucet sequentially comprises the following steps:
step S1, heating and cutting: straightening and heating the metal wire in sequence, and then cutting the metal wire into a first blank;
step S2, shaping, punching and positioning: shaping the first blank to enable the appearance of the first blank to be neat and free of burrs and rough edges; positioning the shaped first blank, and punching a first annular hole at the first end of the first blank to form a second blank;
step S3, first stretching: drawing the second blank to form a third blank;
step S4, first extrusion: extruding the billet three to enable a section of the billet three, which is away from the first end of the billet three, to form an annular head so as to form a billet four;
step S5, positioning and punching for the second time: positioning and punching a second end of the fourth blank to punch a second annular hole, and simultaneously punching two protruding rudiments on the annular head to form a fifth blank;
step S6, second stretching: drawing the annular head of the blank five for the second time to draw the second annular hole, so that the hole depth of the second annular hole is increased and the diameter of the second annular hole is reduced to form a blank six;
step S7, second extrusion: carrying out secondary extrusion on the blank six to enable the two protruding rudiments to form protrusions respectively so as to form a blank seven;
step S8, spline milling and pushing: and milling a spline at the first end of the blank seven to form a spline on the outer surface of the first end of the blank six, and pushing the two protrusions of the blank seven to form positioning bolts protruding out of the annular head part respectively, so as to obtain a finished product of the quick-opening valve rod.
In step S1, the metal wire is subjected to a finish drawing annealing process, and the tolerance size of the wire diameter of the metal wire is less than ± 0.02 mm.
In step S1, the metal wire is heated to TThen, the product is processed＝[0.3 0.5]TFusion furnace，TFusion furnaceIs the melting temperature of the metal wire.
The manufacturing method is characterized in that a multi-station cold heading forming machine is adopted for manufacturing, the multi-station cold heading forming machine comprises a die device, and the die device comprises seven die cavities which are sequentially arranged.
The invention relates to a manufacturing process of a quick-opening valve rod of a faucet, which has the following beneficial effects: adopt above-mentioned step preparation quick-opening valve rod, adopt the mode of lapse to pass two archs, in order to form obvious protrusion in the location bolt of annular head, easy operation, and location bolt protrusion is comparatively obvious, and, twice extrusion forms the arch in annular head, then form spline and two location bolts simultaneously in same process, one step targets in place, avoided the spline to process in a plurality of moulds after and the difficult accurate problem that resets on same spline position, also avoided simultaneously step-by-step to add the main part that probably makes quick-opening valve rod to warp and/or the not high problem of precision, be applicable to the great metal wire rod of hardness, the precision that quick-opening valve rod becomes has been ensured.
Drawings
FIG. 1 is a schematic structural view of a quick-opening valve stem of the present invention;
FIG. 2 is a schematic view of a mold apparatus according to the present invention;
fig. 3 is a process diagram of the deformation of the quick-opening valve stem made in the present invention.
In the figure:
11-mold cavity one; 12-mold cavity two;
13-mold cavity three; 14-mold cavity four;
15-mold cavity five; 16-mold cavity six;
17-mold cavity seven; 21-blank one;
22-blank two; 23-blank three;
24-blank four; 25-blank five;
26-blank six; 27-blank seven;
31-a first annular hole; 32-a ring-shaped head;
33-splines; 34-a positioning bolt;
35-a second annular aperture; 41-raised embryonic form;
42-convex.
Detailed Description
In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following specific examples.
A manufacturing process of a quick-opening valve rod of a faucet is shown in figures 1-3, metal wires are adopted for processing to manufacture and form the quick-opening valve rod, production equipment for manufacturing the quick-opening valve rod is a multi-station cold heading forming machine, the multi-station cold heading forming machine comprises a feeding mechanism and a die device, four die cavities for processing the quick-opening valve rod are sequentially arranged on the die device, and each die cavity sequentially corresponds to a die cavity I11, a die cavity II 12, a die cavity III 13, a die cavity IV 14, a die cavity V15, a die cavity VI 16 and a die cavity VII 17.
In this embodiment, a metal wire is exemplified as a stainless steel disc wire.
The manufacturing process of the invention adopts a multi-station one-time cold heading forming process, and sequentially comprises the following steps:
step S1, heating and cutting: selecting the size of a metal wire according to the outer diameter of a required finished product, straightening and heating the selected metal wire in sequence, and then cutting the metal wire into a set weight to form a first blank 21; wherein the set weight refers to the same weight as the desired finished valve stem.
Step S2, shaping, punching and positioning: the first blank 21 is sent into a first die cavity 11 through a feeding mechanism to be shaped, so that the shape, the length and the diameter of the first blank meet the requirements, and meanwhile, the first blank 21 is tidy in appearance, free of burrs and free of burrs; then positioning, namely centering, the shaped blank I21 so as to punch a first annular hole 31 at the first end of the blank I21, enabling the first annular hole 31 to be coaxially arranged with the blank I21 to form a blank II 22, and then ejecting the blank II 22 out of the die cavity I11;
the purpose of the positioning is to facilitate the punching of the first end of the first blank 21 in preparation for the next drawing step.
Step S3, first stretching: the second blank 22 is fed into the second die cavity 12 through the feeding mechanism, the second blank 22 is stretched in the die cavity 12, the whole second blank 22 is stretched, the hole depth of the first annular hole 31 is increased, the diameter of the first annular hole 31 is reduced, a third blank 23 is formed, and then the third blank 23 is ejected out of the second die cavity 12;
the purpose of the first drawing is to form the billet three 23 to a corresponding size and diameter while also drawing the first annular hole 31 to a corresponding diameter and hole depth in preparation for the next extrusion of the billet three 23.
Step S4, first extrusion: the third blank 23 is fed into the third die cavity 13 through the feeding mechanism, the third blank 23 is divided into a first section and a second section, the free end of the first section is the first end of the third blank 23, the free end of the second section is the second end of the third blank 23, the third blank 23 is extruded in the third die cavity 13, the second section of the third blank 23 is made to form an annular head 32 to form a fourth blank 24, and then the fourth blank 24 is ejected out of the third die cavity 13;
the purpose of the first extrusion is to form the billet four 24 into a corresponding appearance and size.
Step S5, positioning and punching for the second time: the fourth blank 24 is fed into the fourth die cavity 14 through the feeding mechanism, the second end of the fourth blank 24 is positioned and punched to punch a second annular hole 35, two protruding rudiments 41 are extruded on the surface of the annular head 32 to form a fifth blank 25, the two protruding rudiments 41 are symmetrically arranged by taking the axis of the fifth blank 25 as a central line, and then the fifth blank 25 is ejected out of the fourth die cavity 14;
step S6, second stretching: feeding the blank five 25 into the die cavity five 15 through the feeding mechanism, performing secondary stretching on the annular head 32 of the blank five 25 to deepen the hole depth of the second annular hole 35 and reduce the diameter of the second annular hole 35 to form a blank six 26, and then ejecting the blank six 24 out of the die cavity five 15;
the purpose of the second drawing is to draw the billet six 26 to draw the second annular hole 35 to meet the size of the billet six 26 and the diameter and hole depth of the second annular hole 35, and prepare for the next extrusion.
Step S7, second extrusion: feeding the blank six 26 into the die cavity six 16 through the feeding mechanism, performing secondary extrusion on the annular head 32 of the blank six 26, so that two protruding rudiments of the annular head 32 form protrusions 42 respectively to form a blank seven 27, wherein the two protrusions 42 are symmetrically arranged by taking the axis of the blank six 27 as a central line, and then the blank seven 27 is ejected out of the die cavity six 16; wherein the projection thickness of the projection prototype is less than the projection thickness of the projection 42.
The purpose of the second extrusion is to extrude the two raised preforms 41 so that the raised effect of the annular head 32 is more pronounced in preparation for the next pass.
Step S8, spline milling and pushing: feeding the blank seven 27 into the die cavity seven 17 through a feeding mechanism, performing a spline milling process on the first end of the blank seven 27 to form a spline on the outer surface of the first end of the blank seven 27, and pushing the two protrusions 42 of the blank seven 27 to form the positioning bolts 34 protruding out of the annular head 32 respectively on the two protrusions 42, so as to obtain a finished product of the quick-opening valve rod;
the two protrusions 42 are protruded out of the second end face of the annular head 32 to form the positioning pins 34 in a pushing mode, so that the size of the part of the two positioning pins 34 protruded out of the first end face of the annular head 32 can meet the requirement easily, the situation that the two protrusions 42 are not easy to form the positioning pins 34 is effectively avoided, the processing stability is good, and the processing is accurate;
further, in step S1, the metal wire is exemplified as a stainless steel disc wire in the present embodiment, and the stainless steel disc wire needs to be processed by a conventional finish-drawing annealing process so that the wire diameter tolerance of the stainless steel disc wire is less than ± 0.02mm, and then the stainless steel disc wire processed by the finish-drawing annealing process is straightened and heated to a temperature below the recrystallization temperature, i.e., TThen, the product is processed＝[0.3 0.5]TFusion furnace，TFusion furnaceIs the melting temperature of the metal wire.
The manufacturing process of the invention has the best effect on the positioning bolt 34 processed after the metal with the hardness less than H V310 is processed.
In the present invention, the wire rod is not limited to a stainless steel disc wire rod, and may be an iron wire rod, a copper wire rod, an aluminum wire rod, or the like.
The surface of the quick-opening valve rod manufactured by adopting the steps is smooth, only one-time shaping is needed, secondary shaping is not needed, and the spline and the two positioning bolts on the quick-opening valve rod are simultaneously processed in one step, so that the problem of processing deformation possibly existing in step-by-step operation is solved, the precision of a finished product is improved, and the problem that the spline is difficult to accurately reset on the same spline position after being processed in a plurality of dies is solved.
The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made within the scope of the claims of the present invention should fall within the scope of the claims of the present invention.
Claims (4)
1. A manufacturing process of a quick-opening valve rod of a faucet is characterized by sequentially comprising the following steps of:
step S1, heating and cutting: straightening and heating the metal wire in sequence, and then cutting the metal wire into a first blank;
step S2, shaping, punching and positioning: shaping the first blank to enable the appearance of the first blank to be neat and free of burrs and rough edges; positioning the shaped first blank, and punching a first annular hole at the first end of the first blank to form a second blank;
step S3, first stretching: drawing the second blank to form a third blank;
step S4, first extrusion: extruding the billet three to enable a section of the billet three, which is away from the first end of the billet three, to form an annular head so as to form a billet four;
step S5, positioning and punching for the second time: positioning and punching a second end of the fourth blank to punch a second annular hole, and simultaneously punching two protruding rudiments on the annular head to form a fifth blank;
step S6, second stretching: drawing the annular head of the blank five for the second time to draw the second annular hole, so that the hole depth of the second annular hole is increased and the diameter of the second annular hole is reduced to form a blank six;
step S7, second extrusion: carrying out secondary extrusion on the blank six to enable the two protruding rudiments to form protrusions respectively so as to form a blank seven;
step S8, spline milling and pushing: and milling a spline at the first end of the blank seven to form a spline on the outer surface of the first end of the blank six, and pushing the two protrusions of the blank seven to form positioning bolts protruding out of the annular head part respectively, so as to obtain a finished product of the quick-opening valve rod.
2. The manufacturing process of the quick-opening valve rod of the water faucet according to claim 1, characterized in that: in step S1, the metal wire is subjected to a finish drawing annealing process, and the tolerance size of the wire diameter of the metal wire is less than ± 0.02 mm.
3. The process for manufacturing the quick-opening valve rod of the water faucet according to claim 1 or 2, wherein the process comprises the following steps: in step S1, the metal wire is heated to TThen, the product is processed＝[0.30.5]TFusion furnace，TFusion furnaceIs the melting temperature of the metal wire.
4. The process for manufacturing the quick-opening valve rod of the water faucet according to claim 1 or 2, wherein the process comprises the following steps: the manufacturing method is characterized in that a multi-station cold heading forming machine is adopted for manufacturing, the multi-station cold heading forming machine comprises a die device, and the die device comprises seven die cavities which are sequentially arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010900900.7A CN112008345A (en) | 2020-08-31 | 2020-08-31 | Manufacturing process of quick-opening valve rod of faucet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010900900.7A CN112008345A (en) | 2020-08-31 | 2020-08-31 | Manufacturing process of quick-opening valve rod of faucet |
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| Publication Number | Publication Date |
|---|---|
| CN112008345A true CN112008345A (en) | 2020-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010900900.7A Pending CN112008345A (en) | 2020-08-31 | 2020-08-31 | Manufacturing process of quick-opening valve rod of faucet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112589399A (en) * | 2021-01-25 | 2021-04-02 | 湖南理工学院 | Processing technology of faucet valve rod |
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2020
- 2020-08-31 CN CN202010900900.7A patent/CN112008345A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112589399A (en) * | 2021-01-25 | 2021-04-02 | 湖南理工学院 | Processing technology of faucet valve rod |
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Application publication date: 20201201 |