CN110394605B - Valve hand wheel machining method - Google Patents
Valve hand wheel machining method Download PDFInfo
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- CN110394605B CN110394605B CN201910742339.1A CN201910742339A CN110394605B CN 110394605 B CN110394605 B CN 110394605B CN 201910742339 A CN201910742339 A CN 201910742339A CN 110394605 B CN110394605 B CN 110394605B
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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
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Abstract
The invention discloses a valve hand wheel processing method, which comprises the following steps: preparing production, smelting, pouring and casting, cooling, polishing and painting; the painting step adopts painting equipment to paint hand wheels, and the painting equipment comprises a hand wheel feeding device, a clamping device, a conveying device, a painting device, a drying device and a cleaning device for cleaning the clamping device; last the material loading through loading attachment, clamping device is fixed to the adversary's wheel centre gripping, and rethread conveyer transports the fixed hand wheel of centre gripping, and through painting device and drying device in the transportation, it is fixed that clamping device loosens the adversary's wheel after the stoving, and the hand wheel drops to collecting the department, clears up through cleaning device paint on to clamping device at last. The invention mainly solves the problem that a square hole of a hand wheel is prevented from becoming small after painting on the premise of improving the painting of the hand wheel.
Description
Technical Field
The invention relates to the technical field of valve manufacturing, in particular to a valve hand wheel machining method.
Background
After the production of the valve hand wheel, in order to prevent the hand wheel from being exposed to air for a long time and being oxidized and rusted, paint is required to be coated on the surface of the hand wheel. Among the prior art, the painting mode of hand wheel is mainly including two kinds, one kind makes and uses the paintbrush to avoid the hand wheel square hole on the hand wheel and evenly scribbles paint, this kind of processing mode wastes time and energy, it is also not high to scribble the lacquer quality, be unfavorable for production, another kind of mode is directly to arrange the hand wheel in the paint box and adopts the mode of dip-coating to paint, nevertheless, also will remain a large amount of paint in the hand wheel square hole, when leading to the installation valve rod, the valve rod is difficult to pass and perforates and fixed with the hand wheel, consequently, in follow-up man-hour, still need remove the lacquer operation to the hand wheel square hole, the work load has.
Disclosure of Invention
The invention provides a valve hand wheel machining method for overcoming the defects in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme: a valve hand wheel machining method comprises the following steps:
a. preparation of production: preparing materials for producing valve hand wheel castings, and producing mechanical equipment and related grinding tools;
b. smelting: carrying out furnace burden proportioning, selecting a proper smelting mode, and setting reasonable smelting temperature and time, wherein the material component content of the valve casting part is controlled during the reasonable smelting process;
c. pouring and casting: pouring the smelted casting material into a mold cavity of a grinding tool for casting molding;
d. and (3) cooling: cooling the molded hand wheel after molding;
e. shot blasting: shot blasting treatment is carried out on the hand wheel by adopting smaller steel balls, so that the surface quality of the hand wheel is enhanced and deburring is realized;
f. painting: painting and drying the hand wheel by using painting equipment to obtain a finished hand wheel product;
the painting equipment in the step f comprises a hand wheel feeding device, a clamping device, a conveying device, a painting device, a drying device and a cleaning device for cleaning the clamping device, wherein the clamping device comprises a plurality of equidistantly arranged rotary seats arranged on the conveying device at equal intervals, clamping seats fixedly arranged on the upper surfaces of the rotary seats, two groups of air rods arranged on the clamping seats in an annular array mode, a first group of triangular clamping blocks fixedly arranged on one group of air rods, a second group of triangular clamping blocks fixedly arranged on the other group of air rods and a abdicating groove arranged on the first group of triangular clamping blocks; according to the invention, the first group of triangular clamping blocks and the second group of triangular clamping blocks are respectively pushed by the two groups of air rods, so that paint is prevented from entering a square hole and the clamping device is prevented from being worn for a long time due to the fact that the clamping device is used for abrasion, the gap between the hand wheel and the clamping device is increased, the paint enters the square hole, and meanwhile, the problem that the square hole of the hand wheel is prevented from being reduced after painting on the premise of improving the painting of the hand wheel is solved by arranging the plurality of clamping seats; by the aid of the painting device, the quality of painted products is improved, and the painting efficiency is improved to a certain extent; the painted hand wheel is dried by the drying device, the drying speed is high, and the problem that the whole working efficiency is influenced due to the bottleneck of the hand wheel processing procedure caused by drying is avoided; through cleaning device, carry out the paint removal processing to clamping device, avoid long-time operation, paint is more and more thick and influences follow-up clamping device and inserts the hand wheel square hole.
The material composition in the step b is mainly that 90-95% of refined steel ingots are adopted, FeSi with the weight of 1.5% -2% of that of molten steel is added at the bottom of the furnace before the materials are loaded into the furnace, finally Ni element is added, a certain amount of nitrogen element is added, and the content of harmful element P, S is reduced; making the total amount of the substances in the furnace reach the middle upper line; the content of harmful element P, S is reduced, and the content of ferrite is controlled by reducing the chromium/nickel equivalent ratio P, so that the content of ferrite in the whole structure is reduced, and the embrittlement and the martensite transformation of the ferrite are avoided or reduced; and secondly, the S content is prevented from enabling S and H in the valve hand-pulled casting to be combined to form HS, and stress corrosion cracking of the metal material can be caused.
The content of the added nitrogen is 0.06-0.2%, the content of harmful element P, S is respectively controlled to be P < 0.03%, and S < 0.016%; the chromium/nickel equivalent ratio P is controlled to be less than or equal to 0.9, the ferrite content is controlled to be less than 5.0 percent, and the convenience of hand-pulled casting parts is improved.
The cleaning device comprises a dust collection box, a cavity box fixedly arranged on the dust collection box and positioned above the dust collection box, a moving plate arranged in the cavity box, two groups of cylinders for driving the moving plate to reciprocate, a plurality of hollow square tubes arranged on the moving plate, a first driving piece arranged on the left side of each hollow square tube, a second driving piece arranged on the right side of each hollow square tube, a first scraper fixedly arranged on the first driving piece, and a second scraper fixedly arranged on the second driving piece, wherein the clamping device moves to the position of each hollow square tube, the cylinders drive the moving plate to move towards the clamping device, the clamping device is inserted into the hollow square tubes, the first driving piece and the second driving piece are started simultaneously, the first scraper and the second scraper simultaneously move towards the clamping device, the contact of the outer surface of the clamping device is completed, the cylinders drive the moving plate to move towards the direction of the cylinders, and the first scraper and the second scraper, starting the dust collection box, sucking the scraped paint into the dust collection box, and finishing cleaning operation; strike off the paint on clamping device through first scraper blade and second scraper blade, strike off effectual and fast, the rethread dust collection box inhales the dust collection box to the paint that strikes off, it is aerial to avoid the paint dispersion, make things convenient for the follow-up reuse of paint simultaneously, through cylinder drive movable plate reciprocating motion, make clamping device can be located in the middle of first scraper blade and the second scraper blade, rethread first driving piece and second driving piece, make first scraper blade and second scraper blade can contact clamping device, the better paint on the drive clamping device.
The feeding device comprises a support frame, a fixed plate, a plurality of limiting grooves, a discharging box, two groups of third driving pieces, a plug board, a fourth driving piece, a lifting frame and a plurality of rotating discs, wherein the fixed plate is fixedly arranged on the support frame and positioned above the support frame; stack a plurality of hand wheels in the blowing case through the blowing case, through third driving piece drive picture peg reciprocating motion, make the bottom one row of hand wheel in the blowing case released, and move to the crane direction along the spacing groove on the fixed plate, final hand wheel is pushed to on the carousel on the crane, fifth driving piece drive crane rises, make the hand wheel on the carousel can be located clamping device department, clamping device can make the hand wheel rotate when centre gripping hand wheel, the carousel can be better makes the hand wheel rotate, the fixed hand wheel of clamping device of being convenient for.
The invention has the following advantages: promote first group triangle grip block and second group grip block respectively through two sets of gas poles, make through fixed hand wheel hole, avoid paint to get into in the square hole, and avoid clamping device to use wearing and tearing for a long time, hand wheel and clamping device clearance increase, in paint gets into the square hole, through being equipped with a plurality of grip slipper simultaneously, avoided hand wheel square hole to diminish the problem after the japanning under the prerequisite that has improved the hand wheel japanning.
Drawings
Fig. 1 is a schematic structural view of a painting apparatus.
Fig. 2 is a partial structural schematic diagram of the feeding device.
Fig. 3 is an enlarged view of a portion a in fig. 2.
Fig. 4 is a schematic structural diagram of the feeding device and the cleaning device.
Fig. 5 is an enlarged view of fig. 4 at B.
Fig. 6 is a cross-sectional view of the clamping device.
Fig. 7 is a schematic view of a painting apparatus.
Fig. 8 is a schematic sectional view of the drying apparatus.
Fig. 9 is an enlarged view of fig. 8 at C.
Fig. 10 is a schematic side view of the drying apparatus.
Fig. 11 is an enlarged view of fig. 10 at D.
Fig. 12 is an enlarged view of fig. 10 at E.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
a. Production equipment: preparing materials for producing valve hand wheel castings, and producing mechanical equipment and related grinding tools;
b. smelting: carrying out furnace burden proportioning, selecting a proper smelting mode, and setting reasonable smelting temperature and time, wherein the material component content of the valve casting part is controlled during the reasonable smelting process;
c. pouring and casting: pouring the smelted casting material into a mold cavity of a grinding tool for casting molding;
d. and (3) cooling: cooling the molded hand wheel after molding;
e. shot blasting: shot blasting treatment is carried out on the hand wheel by adopting smaller steel balls, so that the surface quality of the hand wheel is enhanced and deburring is realized;
f. painting: painting and drying the hand wheel by using painting equipment to obtain a finished hand wheel product;
as shown in fig. 1-12, the painting equipment in step f includes a hand wheel feeding device 1, a clamping device 2, a conveying device 3, a painting device 4, a drying device 5, and a cleaning device 6 for cleaning the clamping device, where the feeding device 1 includes a supporting frame 11, a fixing plate 12 fixed on the supporting frame and located above the supporting frame, a plurality of limiting grooves 13 arranged on the fixing plate at equal intervals, a discharging box 14 fixed on the supporting frame and located above the fixing plate, two sets of third driving members 15 fixed on the supporting frame, a plug board 16 fixed on the third driving members, a fourth driving member 17 fixed on the supporting frame, a lifting frame 18 arranged on the fourth driving member, and a plurality of rotating discs 19 arranged on the lifting frame at equal intervals, where the hand wheel to be painted is located in the discharging box, the third driving member drives the plug board to reciprocate, and continuously convey the hand wheel, the handle wheel is pushed to the rotary table on the lifting frame, the fourth driving part drives the lifting frame to ascend, and the clamping device is inserted into the hand wheel square hole to complete continuous feeding operation.
Further, the rotary seat 21 that a plurality of equidistance arranged on conveyer was located including the equidistance arrangement to clamping device 2, fixed clamping holder 22, the annular array of locating the rotary seat upper surface locate two sets of gas poles 23 on the clamping holder, fixed locate first group triangle grip block 24 on one of them group of gas pole, fixed locate second group triangle grip block 25 on another group of gas pole, locate the groove of stepping down 26 on the first group triangle grip block, clamping device wholly inserts in the hand wheel square hole, and wherein a set of gas pole drive first group triangle grip block moves to the outside, and another group of gas pole redrives second group triangle grip block and moves to the outside, accomplishes the centre gripping of hand wheel, and rethread conveyer 3 delivers to painting device department.
Further, the conveying device 3 includes a conveying frame 31, a main shaft 32 and a driven shaft 33 disposed at two ends of the conveying frame, a driving motor 34 for driving the main shaft to rotate, a conveying belt 35 sleeved on the main shaft and the driven shaft, and a guide plate 36 disposed on the conveying frame, wherein the main shaft is driven to rotate by the driving motor, so that the conveying belt rotates, the driven shaft rotates, and the clamping device disposed on the conveying belt is conveyed to each processing point.
Further, the painting device 4 comprises a paint box 41, a lifting platform 42 located below the paint box, a paint feeding box 43 located on the right side of the lifting platform, and a hose passage 44 connecting the paint box and the paint feeding box, wherein a hand wheel is clamped and located right above the paint box, the lifting platform ascends, paint is injected into the paint box from the paint box, the lifting platform ascends to a certain height, the hand wheel is enabled to be completely immersed into the paint, the paint injected into the paint box is sucked back into the paint box for the paint box, the rotary seat rotates, the hand wheel rotates, excessive paint on the hand wheel is thrown into the paint box, the lifting platform descends, and the hand wheel with the paint can be dried at the next drying device through the painting process.
Further, drying device 5 includes stoving case 51, locate a plurality of heater strips 52 below the hand wheel of stoving incasement, hand wheel import 53 and export 54 on locating the stoving case, locate a plurality of fans 55 on the stoving case right side wall, the hand wheel after the japanning gets into the stoving incasement from the import, heater strip in the stoving incasement heats the hand wheel surface, make the paint rapid-curing cutback on the hand wheel, the stoving case is discharged to the vapor in the stoving case through a plurality of fans, avoid the paint moisture regain of drying, it is effectual to dry, the hand wheel that dries at last comes out from the exit and lies in the deflector top, clamping device relaxs fixed to the hand wheel, make the hand wheel drop on the deflector, and from the deflector slip into the hand wheel and concentrate the department.
Further, the cleaning device 6 comprises a dust collecting box 61, a cavity box 62 fixedly arranged on the dust collecting box and positioned above the dust collecting box, a moving plate 63 arranged in the cavity box, two sets of cylinders 64 for driving the moving plate to reciprocate, a plurality of hollow square tubes 65 arranged on the moving plate, a first driving piece 66 arranged on the left side of each hollow square tube, a second driving piece 67 arranged on the right side of each hollow square tube, a first scraping plate 68 fixedly arranged on the first driving piece, and a second scraping plate 69 fixedly arranged on the second driving piece, wherein the clamping device moves to the position of each hollow square tube, the cylinders drive the moving plate to move towards the clamping device, the clamping device is inserted into the hollow square tubes, the first driving piece and the second driving piece are started simultaneously, the first scraping plate and the second scraping plate simultaneously move towards the clamping device to complete the contact of the outer surface of the clamping device, and the cylinders drive the moving, the first scraper and the second scraper complete scraping off paint on the surface of the clamping device, the dust collection box is started, and the scraped paint is sucked into the dust collection box to complete cleaning operation.
The first driving piece, the second driving piece, the third driving piece and the fourth driving piece are purchased from the market of the hydraulic cylinder, and the driving motor and the air cylinder are also purchased from the market.
Claims (1)
1. A valve hand wheel processing method is characterized in that: the method comprises the following steps:
a. preparation of production: preparing materials for producing valve handwheel castings, and producing mechanical equipment and relevant molds;
b. smelting: carrying out furnace burden proportioning, selecting a proper smelting mode, and setting reasonable smelting temperature and time, wherein the material component content of the valve casting part is controlled during the reasonable smelting process;
c. pouring and casting: pouring the smelted casting material into a mold cavity for casting molding;
d. and (3) cooling: cooling the molded hand wheel after molding;
e. shot blasting: shot blasting treatment is carried out on the hand wheel by adopting smaller steel balls, so that the surface quality of the hand wheel is enhanced and deburring is realized;
f. painting: painting and drying the hand wheel by using painting equipment to obtain a finished hand wheel product;
wherein, the painting equipment in the step f comprises a hand wheel feeding device (1), a clamping device (2), a conveying device (3), a painting device (4), a drying device (5) and a cleaning device (6) for cleaning the clamping device, the clamping device (2) comprises a plurality of rotating seats (21) which are arranged on the conveying device at equal intervals, clamping seats (22) which are fixedly arranged on the upper surface of the rotating seats, two groups of air rods (23) which are arranged on the clamping seats in an annular array, a first group of triangular clamping blocks (24) which are fixedly arranged on one group of air rods, a second group of triangular clamping blocks (25) which are fixedly arranged on the other group of air rods, and a abdicating groove (26) which is arranged on the first group of triangular clamping blocks, the clamping device is integrally inserted into the hand wheel square hole, one group of air rods drives the first group of triangular clamping blocks to move towards the outer side, the other group of air rods drives the second group of triangular, clamping the hand wheel;
the material composition in the step b is mainly that 90-95% of refined steel ingots are adopted, FeSi with the weight of 1.5% -2% of that of molten steel is added at the bottom of the furnace before the materials are loaded into the furnace, finally Ni element is added, a certain amount of nitrogen element is added, and the content of harmful element P, S is reduced;
the content of the added nitrogen is 0.06-0.2%, the content of harmful element P, S is respectively controlled to be P < 0.03%, and S < 0.016%;
the cleaning device (6) comprises a dust collection box (61), a cavity box (62) fixedly arranged on the dust collection box and positioned above the dust collection box, a moving plate (63) arranged in the cavity box, two groups of cylinders (64) for driving the moving plate to reciprocate, a plurality of hollow square tubes (65) arranged on the moving plate, a first driving piece (66) arranged on the left side of each hollow square tube, a second driving piece (67) arranged on the right side of each hollow square tube, a first scraper blade (68) fixedly arranged on the first driving piece, and a second scraper blade (69) fixedly arranged on the second driving piece, wherein the clamping device moves to the position of each hollow square tube, the cylinders drive the moving plate to move towards the clamping device, the clamping device is inserted into the hollow square tubes, the first driving piece and the second driving piece are started simultaneously, the first scraper blade and the second scraper blade simultaneously move towards the clamping device to, the cylinder drives the moving plate to move towards the direction of the cylinder, the first scraper and the second scraper complete scraping off paint on the surface of the clamping device, the dust collection box is started, and the scraped paint is sucked into the dust collection box to complete cleaning operation;
the hand wheel feeding device (1) comprises a support frame (11), a fixed plate (12) fixedly arranged on the support frame and positioned above the support frame, a plurality of limit grooves (13) arranged on the fixed plate at equal intervals, a material discharging box (14) fixedly arranged on the support frame and positioned above the fixed plate, two groups of third driving pieces (15) fixedly arranged on the support frame, a plug board (16) fixedly arranged on the third driving pieces, a fourth driving piece (17) fixedly arranged on the support frame, a lifting frame (18) arranged on the fourth driving piece, and a plurality of rotary discs (19) arranged on the lifting frame at equal intervals, a hand wheel to be painted is positioned in the material discharging box, the third driving piece drives the inserting plate to move in a reciprocating mode, the hand wheel is continuously conveyed, the hand wheel is pushed to a rotary table on the lifting frame, the fourth driving piece drives the lifting frame to ascend, and the clamping device is inserted into a square hole of the hand wheel to complete continuous feeding operation;
the conveying device (3) comprises a conveying frame (31), a main shaft (32) and a driven shaft (33) which are arranged at two ends of the conveying frame, a driving motor (34) for driving the main shaft to rotate, a conveying belt (35) sleeved on the main shaft and the driven shaft, and a guide plate (36) arranged on the conveying frame, wherein the main shaft is driven to rotate through the driving motor, so that the conveying belt rotates, the driven shaft rotates, and the clamping device positioned on the conveying belt is conveyed to each processing point;
the painting device (4) comprises a paint box (41), a lifting platform (42) positioned below the paint box, a paint feeding box (43) positioned on the right side of the lifting platform, and a hose pipeline (44) connected with the paint box and the paint feeding box, wherein a clamped hand wheel is positioned right above the paint box, the lifting platform ascends, paint is injected into the paint box from the paint box, the lifting platform ascends to a certain height to enable the hand wheel to be completely immersed into the paint, the paint injected into the paint box is sucked back into the paint box from the paint box, a rotary seat rotates to enable the hand wheel to rotate, excessive paint on the hand wheel is thrown into the paint box, the lifting platform descends, and the hand wheel with the paint can be dried at the next drying device through a painting process;
the drying device (5) comprises a drying box (51), a plurality of heating wires (52) arranged on the upper surface and the lower surface of a hand wheel in the drying box, a hand wheel inlet (53) and an outlet (54) arranged on the drying box, and a plurality of fans (55) arranged on the right side wall of the drying box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910742339.1A CN110394605B (en) | 2019-08-13 | 2019-08-13 | Valve hand wheel machining method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910742339.1A CN110394605B (en) | 2019-08-13 | 2019-08-13 | Valve hand wheel machining method |
Publications (2)
| Publication Number | Publication Date |
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| CN110394605A CN110394605A (en) | 2019-11-01 |
| CN110394605B true CN110394605B (en) | 2021-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910742339.1A Active CN110394605B (en) | 2019-08-13 | 2019-08-13 | Valve hand wheel machining method |
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| CN (1) | CN110394605B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111495699B (en) * | 2020-04-30 | 2021-04-27 | 绍兴上虞凯迪精工机械有限公司 | Production equipment and process of safety valve |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015158220A (en) * | 2014-02-24 | 2015-09-03 | 株式会社鷹取製作所 | Valve management information setting method, handwheel of valve, and valve |
| CN207105096U (en) * | 2017-07-03 | 2018-03-16 | 廖荃连 | A kind of brake disc conveys drilling equipment |
| CN108212670A (en) * | 2018-03-30 | 2018-06-29 | 重庆市骞焰机械有限责任公司 | A kind of device for painting of valve handle |
| CN208162971U (en) * | 2018-04-24 | 2018-11-30 | 无锡奇能焊接系统有限公司 | Cylinder for liquefied gas welds clamping device |
| CN208575553U (en) * | 2018-06-27 | 2019-03-05 | 长沙湘瑞重工有限公司 | A kind of large-scale workpiece extension supporting table |
| CN109877274B (en) * | 2019-03-23 | 2020-12-01 | 江苏亿阀股份有限公司 | Casting process of ultralow-temperature valve casting |
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