CN112846670B - Processing technology of valve core shell of water faucet - Google Patents
Processing technology of valve core shell of water faucet Download PDFInfo
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- CN112846670B CN112846670B CN202110098401.5A CN202110098401A CN112846670B CN 112846670 B CN112846670 B CN 112846670B CN 202110098401 A CN202110098401 A CN 202110098401A CN 112846670 B CN112846670 B CN 112846670B
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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
Abstract
The invention discloses a processing technology of a valve core shell of a water faucet, wherein the valve core shell and an opening, a positioning groove, a plectrum limiting lug and a hexagon nut on the valve core shell are integrally formed by hot upsetting; the thread of the valve core shell is formed by adopting a rolling technology, and the groove and the arc-shaped groove of the valve core shell are formed by adopting turning processing. The valve core shell is formed by hot heading, and the processing procedure is further simplified; the thread is formed by adopting a rolling technology and the square opening is formed by adopting a hot stamping technology, so that the processing efficiency is high, the precision is high, the yield is high, and the cost is low.
Description
Technical Field
The invention relates to a processing technology of a valve core shell of a water faucet.
Background
The stainless steel faucet valve bodies are formed by cold machining, such as cold rolling or cold heading, and the like, and the stainless steel cold machining technologies have the defects of complex machining process, low efficiency, easy cracking of the valve bodies in the cold machining process due to work hardening, difficulty in subsequent machining and the like; the 2 rectangular openings on the surface of the valve core shell are generally formed by methods such as linear cutting, laser processing, milling processing and the like, and the processing methods have the defects of low processing efficiency, unstable product quality, low dimensional precision, high cost and the like; the threads on the surface of the valve core shell are formed by cutting, and the machining efficiency and the machining precision are low.
Disclosure of Invention
The invention aims to provide a processing technology of a valve core shell of a water faucet aiming at the defects of the prior art, and the processing technology adopts an integral hot heading forming technology, thereby being beneficial to the forming and processing of the valve core shell and having the advantages of simple processing procedure, high processing precision, high rate of finished products, low cost and the like.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a processing technology of a valve core shell of a water faucet is characterized in that the valve core shell, an opening, a positioning groove, a shifting block limiting lug and a hexagon nut on the valve core shell are integrally formed by hot upsetting; the thread of the valve core shell is formed by adopting a rolling technology, and the groove and the arc-shaped groove of the valve core shell are formed by adopting turning processing.
The material of the valve core shell is 304B stainless steel.
The radius of the arc-shaped groove is 1 mm.
The integral hot heading forming comprises the following steps:
(1) blanking: heating a 304B stainless steel rod with the diameter of 20mm to 500 ℃ for straightening, and cutting the rod into a set length;
(2) shaping for the first time: putting the cut blank into a die heated to 500 ℃, carrying out primary shaping treatment to enable the blank to be flat in appearance, and rounding two ends of the blank to enable the diameter of the blank to be 22.3 mm;
(3) and (5) secondary shaping: putting the blanks shaped for the first time into a mold heated to 500 ℃, carrying out shaping treatment for the second time, and flattening and rounding two ends to ensure that the diameter of the blanks is 22.6 mm;
(4) and (3) mould punching positioning: placing the shaped blank into a mold heated to 500 ℃, punching an annular hole at one end of the blank, positioning, and finishing the other end of the blank into a hexagon so that the diameter of the blank is 22.7 mm;
(5) stretching for the first time: putting the blank into a die heated to 500 ℃, extruding to form a cylindrical hole with the diameter of 13.7mm, and punching two positioning grooves to ensure that the diameter of the blank is 22.8 mm;
(6) punching a positioning block: placing the blank punched with the two positioning grooves into a die heated to 500 ℃, punching, and processing to form symmetrical shifting block limiting lugs to enable the diameter of the blank to be 22.9 mm;
(7) punching a through hole: then putting the blank into a die heated to 500 ℃, continuously performing stamping processing, and punching a through hole with the size required by the valve rod at the hexagonal end part to ensure that the diameter of the blank is 22.9 mm;
(8) punching an opening: and putting the blank subjected to punching into the through hole into a die heated to 500 ℃, continuously performing punching processing, and punching two symmetrical openings for water outlet on the body to obtain a finished product of the valve core shell blank.
Compared with the prior art, the valve core shell is made of 304B stainless steel suitable for hot heading forming, forming and processing are easy, processing procedures are further simplified, threads are formed by adopting a rolling technology, square openings are formed by adopting a hot stamping technology, and the whole valve core shell is high in processing efficiency, high in precision, high in yield and low in cost.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention is further described in detail with reference to the following embodiments.
The invention relates to a processing technology of a valve core shell of a water faucet, which is characterized in that for convenient processing, the material of the valve core shell is 304B stainless steel, and the valve core shell and an opening, a positioning groove, a shifting block limiting lug and a hexagon nut on the valve core shell are formed by integral hot heading; in order to improve the processing efficiency and the processing precision, the thread of the valve core shell is formed by adopting a rolling technology, and the groove and the circular arc groove of the valve core shell are formed by adopting turning processing.
The processing technology comprises the following steps:
(1) blanking: heating a 304B stainless steel rod with the diameter of 20mm to 500 ℃ for straightening, and cutting the rod into a set length;
(2) shaping for the first time: putting the cut blank into a die heated to 500 ℃, carrying out primary shaping treatment to enable the blank to be flat in appearance, and rounding two ends of the blank to enable the diameter of the blank to be 22.3 mm;
(3) and (5) secondary shaping: putting the blanks shaped for the first time into a mold heated to 500 ℃, carrying out shaping treatment for the second time, and flattening and rounding two ends to ensure that the diameter of the blanks is 22.6 mm;
(4) and (3) mould punching and positioning: placing the shaped blank into a mold heated to 500 ℃, punching an annular hole at one end of the blank, positioning, and finishing the other end of the blank into a hexagon so that the diameter of the blank is 22.7 mm;
(5) stretching for the first time: putting the blank into a die heated to 500 ℃, extruding to form a cylindrical hole with the diameter of 13.7mm, and punching two positioning grooves to ensure that the diameter of the blank is 22.8 mm;
(6) punching a positioning block: placing the blank punched with the two positioning grooves into a die heated to 500 ℃, punching, and processing to form symmetrical shifting block limiting lugs to enable the diameter of the blank to be 22.9 mm;
(7) punching a through hole: then putting the blank into a die heated to 500 ℃, continuously performing stamping processing, and punching a through hole with the size required by the valve rod at the hexagonal end part to ensure that the diameter of the blank is 22.9 mm;
(8) punching an opening: putting the blank subjected to punching into the through hole into a die heated to 500 ℃, continuously performing punching processing, and punching two symmetrical openings for water outlet on the body to obtain a finished product of the blank of the valve core shell;
(9) and (3) thread machining: rolling and processing threads on the surface of the valve core shell blank finished product;
(10) groove processing: turning a groove between the thread on the surface of the finished product of the valve core shell blank and the hexagon nut, and forming a convex edge between the groove and the hexagon nut;
(11) processing an arc-shaped groove: and turning an arc-shaped groove with the radius of 1mm on the inner surface of the finished product of the valve core shell blank to obtain the finished product of the valve core shell.
While the foregoing is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.
Claims (2)
1. A processing technology of a valve core shell of a water faucet is characterized in that: the valve core shell, the opening, the positioning groove, the shifting piece limiting lug and the hexagon nut on the valve core shell are integrally formed by hot upsetting; the thread of the valve core shell is formed by adopting a rolling technology, and the groove and the arc-shaped groove of the valve core shell are formed by adopting turning; the integral hot heading forming comprises the following steps:
(1) blanking: heating a 304B stainless steel rod with the diameter of 20mm to 500 ℃ for straightening, and cutting the rod into a set length;
(2) shaping for the first time: putting the cut blank into a die heated to 500 ℃, carrying out primary shaping treatment to enable the blank to be flat in appearance, and rounding two ends of the blank to enable the diameter of the blank to be 22.3 mm;
(3) and (5) secondary shaping: putting the blanks shaped for the first time into a mold heated to 500 ℃, carrying out shaping treatment for the second time, and flattening and rounding two ends to ensure that the diameter of the blanks is 22.6 mm;
(4) and (3) mould punching positioning: placing the shaped blank into a mold heated to 500 ℃, punching an annular hole at one end of the blank, positioning, and finishing the other end of the blank into a hexagon so that the diameter of the blank is 22.7 mm;
(5) stretching for the first time: putting the blank into a die heated to 500 ℃, extruding to form a cylindrical hole with the diameter of 13.7mm, and punching two positioning grooves to ensure that the diameter of the blank is 22.8 mm;
(6) punching a positioning block: placing the blank punched with the two positioning grooves into a die heated to 500 ℃, punching, and processing to form symmetrical shifting block limiting lugs to enable the diameter of the blank to be 22.9 mm;
(7) punching a through hole: then putting the blank into a die heated to 500 ℃, continuously performing stamping processing, and punching a through hole with the size required by the valve rod at the hexagonal end part to ensure that the diameter of the blank is 22.9 mm;
(8) punching an opening: and putting the blank subjected to punching into the through hole into a die heated to 500 ℃, continuously performing punching processing, and punching two symmetrical openings for water outlet on the body to obtain a finished product of the valve core shell blank.
2. The processing technology of the valve core shell of the water faucet according to claim 1, characterized in that: the radius of the arc-shaped groove is 1 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110098401.5A CN112846670B (en) | 2021-01-25 | 2021-01-25 | Processing technology of valve core shell of water faucet |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110098401.5A CN112846670B (en) | 2021-01-25 | 2021-01-25 | Processing technology of valve core shell of water faucet |
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| CN112846670A CN112846670A (en) | 2021-05-28 |
| CN112846670B true CN112846670B (en) | 2022-05-24 |
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| CN113649518A (en) * | 2021-08-18 | 2021-11-16 | 福建其成卫浴科技有限公司 | Manufacturing process of stainless steel valve core shell |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3902697A (en) * | 1973-09-27 | 1975-09-02 | Milwaukee Valve | Butterfly valve |
| CN100472111C (en) * | 2006-04-04 | 2009-03-25 | 李仁波 | Manufacturing method of tap valve body |
| CN101344181B (en) * | 2008-08-15 | 2011-05-04 | 李仁波 | Water tap valve body and its process technique |
| CN103769800B (en) * | 2012-10-22 | 2016-04-13 | 河南神州精工制造股份有限公司 | The spherical shell manufacture craft of ball valve |
| DE102014013998A1 (en) * | 2014-09-25 | 2016-03-31 | Stahl-Armaturen Persta Gesellschaft Mit Beschränkter Haftung | Method for producing a housing middle part of a high-pressure gate valve |
| CN106825376A (en) * | 2017-01-23 | 2017-06-13 | 温州电泰阀门有限公司 | A kind of valve body forging technology |
| CN110732843A (en) * | 2019-10-24 | 2020-01-31 | 刘升平 | Process for generating faucet quick-opening valve bodies |
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