CN110373678B - Low-cost valve body machining method - Google Patents
Low-cost valve body machining method Download PDFInfo
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- CN110373678B CN110373678B CN201910718111.9A CN201910718111A CN110373678B CN 110373678 B CN110373678 B CN 110373678B CN 201910718111 A CN201910718111 A CN 201910718111A CN 110373678 B CN110373678 B CN 110373678B
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- valve body
- driving
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- cleaning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
- B22C9/24—Moulds for peculiarly-shaped castings for hollow articles
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/005—Heat treatment of ferrous alloys containing Mn
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/008—Heat treatment of ferrous alloys containing Si
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G3/00—Apparatus for cleaning or pickling metallic material
Abstract
The method discloses a low-cost valve body machining method, which comprises the following steps: a. molding: manufacturing a valve body mould according to the required size, and putting the valve body mould into a molding sand box to obtain molding sand; b. pouring: pouring molten steel prepared in advance into molding sand; c. and (3) cooling: waiting for cooling and forming of molten steel; d. and (3) heat treatment: e, grinding: polishing the surface of the manufactured valve body; f. cleaning: cleaning the polished valve body through valve body cleaning equipment; g. painting: carrying out paint spraying treatment on the cleaned valve body; through the setting of above-mentioned structure for above-mentioned valve body can wash the stick through first washing stick and second and realize self-cleaning's effect, has avoided artifical abluent hard and consuming time, has improved the cleaning efficiency to the valve body, has strengthened the cleaning performance to the valve body.
Description
Technical Field
The method belongs to the field of valve production and casting, and particularly relates to a low-cost valve body machining method.
Background
The valve is a pipeline accessory used for opening and closing a pipeline, controlling the flow direction, adjusting and controlling parameters (temperature, pressure and flow) of a conveying medium, and the valve needs to be polished, cleaned and painted in the valve production process; because the machining can produce a lot of pieces on the valve surface, if do not wash, dry work or wash the quality relatively poor all can make subsequent paint film forming quality reduce by a wide margin.
The present publication No. CN108554945A discloses a valve cleaning device for valve production, which simply and conveniently realizes uniform water distribution, ensures cleaning effect, and simultaneously recycles water to save water resources.
However, the device can only perform efficient cleaning treatment on small valves, while large valves or valve bodies are very laborious and troublesome, and are very laborious and time-consuming to clean, so that a device capable of automatically cleaning large valves or valve bodies is needed to replace manual cleaning.
Method content
In order to overcome the defects of the prior art, the method for machining the valve body is capable of automatically cleaning, high in efficiency and low in cost.
In order to achieve the purpose, the method adopts the following technical scheme: a low-cost valve body machining method comprises the following steps: a. molding: manufacturing a valve body mould according to the required size, and putting the valve body mould into a molding sand box to obtain molding sand; b. pouring: pouring molten steel prepared in advance into molding sand; c. and (3) cooling: waiting for cooling and forming of molten steel; d. and (3) heat treatment: e, grinding: polishing the surface of the manufactured valve body; f. cleaning: cleaning the polished valve body through valve body cleaning equipment; g. painting: carrying out paint spraying treatment on the cleaned valve body;
wherein, the valve body cleaning equipment comprises a fixed base, a movable frame, a first cleaning rod and a second cleaning rod which are respectively used for cleaning the inner wall of the valve body, a rotary disk used for controlling the revolution of the cleaning rod, a first transmission piece used for controlling the rotation of the rotary disk, a first driving piece used for driving the first transmission piece to rotate, a second transmission piece and a third transmission piece used for respectively controlling the rotation of the first cleaning rod and the second cleaning rod, a fourth transmission piece used for controlling the rotation of the second transmission piece and the third transmission piece, and a second driving piece used for driving the fourth transmission piece to rotate and move, the fixed base is provided with a third driving piece for driving the movable frame to move, the rotating disc is provided with a first driving device for driving the second driving piece and the second driving piece to move and a second driving device for driving the fourth driving piece to move, and the rotating disc is provided with a first meshing tooth group in meshing connection with the first driving piece; before the inner wall of the valve body is cleaned, a third driving piece is started, the third driving piece drives a moving frame to move, the moving frame drives a rotating disc to move, the rotating disc drives a first cleaning rod and a second cleaning rod to move until the first cleaning rod and the second cleaning rod move into the valve body, then a first driving device and a second driving device are started, the first cleaning rod and the second cleaning rod move to be in contact with the inner wall of the valve body, then the second driving piece is started, the second driving piece drives a fourth driving piece, the fourth driving piece drives a second driving piece and a third driving piece to rotate, and the second driving piece and the third driving piece rotate to clean the inner wall of the valve body; through the setting of above-mentioned structure for above-mentioned valve body can realize self-cleaning's effect through first washing stick and second washing stick, avoided artifical abluent hard and consuming time, improved the cleaning efficiency to the valve body, strengthened the cleaning performance to the valve body, and first washing stick and second washing stick can be through the control automatic movement of third driving piece to the valve body in, avoid the effort and the danger of artifical large-scale valve body of removal, and the safety is improved, practicality very is reliable.
The molding sand in the step a is prepared from the following raw materials in parts by weight: 100 parts of silica sand, 7-9 parts of water glass, 11-15 parts of water, 2-5 parts of phenolic resin, 2-5 parts of silicone oil, 12-14 parts of bentonite and 3-5 parts of aluminum tripolyphosphate; adopt the ratio setting of above-mentioned raw materials, the effectual casting reliability that improves the molding sand strengthens the casting effect to the valve body, has strengthened the casting quality to the valve body.
The sulfur content in the molten steel in the step b is not more than 0.15 percent, the phosphorus content is not more than 0.03 percent, the carbon content is 0.06-0.07 percent, the silicon content is 0.25-0.30 percent, and the manganese content is 0.40-0.45 percent; by adopting the setting of the parameters, the casting quality of the molten steel is effectively improved, the strength and the hardness of the valve body are increased, and the casting effect is enhanced.
After the molten steel in the step c is cooled to normal temperature in the molding sand, the molded valve body can be taken out, and after the valve body is taken out, the surface of the valve body needs to be cleaned and polished; by adopting the arrangement of the mode, the molten steel can be completely solidified into a solid, so that the valve body can be conveniently molded, workers are prevented from being scalded, and the molding quality of the valve body is ensured.
In the step d, the valve is subjected to heat treatment, the quenching temperature when the valve body is quenched is controlled to be 740-860 ℃, and the tempering temperature when the valve body is tempered is controlled to be 610-660 ℃; by adopting the arrangement in the mode, the hardness of the valve body is improved, the crack rate of the valve body is reduced, the forming strength of the valve body is enhanced, and the durability of the valve body is improved.
A rotating shaft is arranged on the fourth transmission part, an annular groove is formed in the rotating shaft, an annular meshing block is arranged on the annular groove, a clamping column and a telescopic groove for the clamping column to move are arranged on the rotating shaft, a supporting block is arranged at the bottom of the clamping column, a groove is formed in the bottom of the supporting block, a first control part is arranged at the bottom of the telescopic groove, an elastic part connected with the groove is arranged on the first control part, and a clamping groove for the clamping column to insert is formed in the annular meshing block; when the rotating shaft moves, the first control piece is in a starting state and pushes against the clamping column, so that the clamping column is inserted into the clamping groove and fixed to the annular meshing tooth block, the elastic piece stretches at the moment, the rotating shaft rotates to drive the annular meshing tooth block to rotate, when the rotating shaft is fixed and does not move, the first control piece is in a closing state, the clamping column is contracted into the telescopic groove under the action of the elastic piece and leaves the clamping groove, and the rotating shaft cannot drive the annular meshing tooth block to rotate, so that the rotation of the fourth transmission piece is realized; through the setting of above-mentioned structure for above-mentioned annular rodent piece can realize the effect of fixed pine taking off through the cooperation of card post and draw-in groove, so that annular rodent piece drives the rotation axis and removes, thereby realizes the removal of fourth driving medium, and can realize the rotation of fourth driving medium through the rotation axis, and annular tooth piece that meshes causes the interference to the rotation of fourth driving medium, the effectual stability of guaranteeing the structure operation.
The rotary disc is provided with a working cavity, one side of the working cavity is provided with a first moving groove for a rotating shaft to move, the other side of the working cavity is provided with a second moving groove, the end part of the rotating shaft is fixedly connected with an output shaft of a second driving part, the second moving groove is provided with a movable meshing gear ring, a meshing toothed plate is fixedly arranged on the second moving groove, one side of the annular meshing toothed block is meshed with the meshing toothed ring, and the other side of the annular meshing toothed block is meshed with the meshing toothed plate; when the fourth transmission part needs to be moved, the clamping column is inserted into the clamping groove, the second driving part is started, the rotating shaft drives the annular tooth meshing block to rotate, one side of the annular tooth meshing block rotates on the tooth meshing plate along the tooth meshing, the other side of the annular tooth meshing block rotates on the tooth meshing ring along the tooth meshing, the tooth meshing plate cannot move, therefore, the annular tooth meshing block can rotate only after moving, the tooth meshing ring moves along with the rotation of the annular tooth meshing block, and therefore, through the matching of the tooth meshing ring and the tooth meshing plate, the second driving part drives the annular tooth meshing block to rotate, the movement of the annular tooth meshing block in the second moving groove is achieved, and the position of the fourth transmission part can be adjusted; through the setting of above-mentioned nibbling ring gear and nibbling pinion rack for the annular nibbles the tooth piece and can rinse excellent interval through rotatory realization to the removal of fourth driving medium, so that adjust first washing stick and second, in order to adapt to not unidimensional valve body internal diameter, has increased the device's application scope, has improved the device's practicality, has reduceed the cost of purchasing the cleaning equipment of different specifications, reliable practicality very.
The method has the following advantages: according to the low-cost valve body machining method, through the arrangement of the structure, the valve body can realize the automatic cleaning effect through the first cleaning rod and the second cleaning rod, the labor and time consumption during manual cleaning are avoided, the cleaning efficiency of the large valve body is effectively improved, the labor and accidents of moving the large valve body during cleaning are avoided, and the danger of cleaning the large valve body is reduced.
Drawings
Fig. 1 is a perspective view of a valve body cleaning apparatus in the present method.
Fig. 2 is a first perspective sectional view of fig. 1.
Fig. 3 is a perspective sectional view two of fig. 1.
Fig. 4 is an enlarged view of a structure at a in fig. 3.
Fig. 5 is an enlarged view of a structure at B in fig. 3.
Fig. 6 is a perspective view of the rotary plate of fig. 1.
Fig. 7 is a perspective sectional view of fig. 6.
Fig. 8 is an enlarged view of a structure at C in fig. 7.
Fig. 9 is an enlarged view of the structure at D in fig. 7.
Fig. 10 is an enlarged view of a structure at E in fig. 9.
Fig. 11 is an enlarged view of the structure at F in fig. 7.
Detailed Description
The first embodiment is as follows:
a low-cost valve body machining method comprises the following steps: a. molding: manufacturing a valve body mould according to the required size, and putting the valve body mould into a molding sand box to obtain molding sand; b. pouring: pouring molten steel prepared in advance into molding sand; c. and (3) cooling: waiting for cooling and forming of molten steel; d. and (3) heat treatment: e, grinding: polishing the surface of the manufactured valve body; f. cleaning: cleaning the polished valve body through valve body cleaning equipment; g. painting: carrying out paint spraying treatment on the cleaned valve body; the molding sand in the step a is prepared from the following raw materials in parts by weight: 100 parts of silica sand, 7 parts of water glass, 11 parts of water, 2 parts of phenolic resin, 2 parts of silicone oil, 12 parts of bentonite and 3 parts of aluminum tripolyphosphate; in the step b, the sulfur content in the molten steel is not more than 0.15 percent, the phosphorus content is not more than 0.03 percent, the carbon content is 0.06 percent, the silicon content is 0.25 percent, and the manganese content is 0.40 percent; after the molten steel in the step c is cooled to normal temperature in the molding sand, the molded valve body can be taken out, and after the valve body is taken out, the surface of the valve body needs to be cleaned and polished; and d, performing heat treatment on the valve in the step d, wherein the quenching temperature when the valve body is quenched is controlled to be 740 ℃, and the tempering temperature when the valve body is tempered is controlled to be 610 ℃.
As shown in fig. 1-11, the valve body cleaning device includes a fixed base 1, a movable frame 2, a first cleaning rod 31 and a second cleaning rod 32 for cleaning the inner wall of the valve body, respectively, a rotary disk 33 for controlling the revolution of the cleaning rods, a first transmission member 21 for controlling the rotation of the rotary disk 33, a first driving member 22 for driving the first transmission member 21 to rotate, a second transmission member 34 and a third transmission member 35 for controlling the rotation of the first cleaning rod 31 and the second cleaning rod 32, respectively, a fourth transmission member 36 for controlling the rotation of the second transmission member 34 and the third transmission member 35, and a second driving member 37 for driving the fourth transmission member 36 to rotate and move, the fixed base 1 is provided with a third driving member 11 for driving the movable frame 2 to move, the rotary disk 33 is provided with a first driving device for driving the second transmission member 35 and the third transmission member 36 to move, and a second driving device for driving the fourth transmission member 36 to move, the rotating disc 33 is provided with a first meshing tooth group 331 meshed and connected with the first transmission piece 21; before the inner wall of the valve body is cleaned, the third driving part 11 is started, the third driving part 11 drives the moving frame 2 to move, the moving frame 2 drives the rotating disc 33 to move, the rotating disc 33 drives the first cleaning rod 31 and the second cleaning rod 32 to move until the first cleaning rod 31 and the second cleaning rod 32 move into the valve body, then the first driving device and the second driving device are started, the first cleaning rod 31 and the second cleaning rod 32 move to be in contact with the inner wall of the valve body, then the second driving part 27 is started, the second driving part 27 drives the fourth transmission part 36, the fourth transmission part 26 drives the second transmission part 35 and the third transmission part 36 to rotate, and the second transmission part 35 and the third transmission part 36 rotate, so that the inner wall of the valve body is cleaned.
The first cleaning rod and the second cleaning rod are arranged by adopting a common cleaning brush in the current market, the first cleaning rod and the second cleaning rod are in the prior art and are not described again, the first transmission piece, the second transmission piece, the third transmission piece and the fourth transmission piece are arranged by adopting gears, the prior art is not described again, the first driving piece and the second driving piece are arranged by adopting motors, the prior art is not described again, the third driving piece is arranged by adopting a rodless cylinder, the prior art is not described again, and the second transmission piece and the third transmission piece are respectively kept in a tooth state with the fourth transmission piece all the time; be equipped with annular slider 337 on the above-mentioned rotary disk 33, annular slider locates on the removal frame 2, and rotary disk 33 rotates on removal frame 2 through annular slider 337, and when wasing the valve body, first driving piece starts, and the first transmission piece of control rotates, and first transmission piece drives the rotary disk and rotates to realize that first washing stick and second wash that the stick lasts and carry out the washing of covering entirely to the valve body inner wall.
A rotating shaft 361 is arranged on the fourth transmission piece 36, an annular groove 362 is arranged on the rotating shaft 361, an annular meshing block 363 is arranged on the annular groove 362, a clamping column 364 and a telescopic groove 365 used for allowing the clamping column 364 to move are arranged on the rotating shaft 361, a supporting block 366 is arranged at the bottom of the clamping column 364, a groove 3661 is arranged at the bottom of the supporting block 366, a first control piece 367 is arranged at the bottom of the telescopic groove 365, an elastic piece 368 connected with the groove 3661 is arranged on the first control piece 367, and a clamping groove 3631 used for allowing the clamping column 364 to be inserted is arranged on the annular meshing block 363; when the rotation shaft 361 is moved, the first control member 367 is in an activated state, repelling the catching post 364, so that the catching post 364 is inserted into the catching groove 3631, the annular gear block 363 is fixed, at this time, the elastic element 368 stretches, the rotation of the rotating shaft 361 can drive the annular gear block 363 to rotate, when the rotating shaft 361 is fixed and does not move, the first control member 367 is in a closed state, the clamping column 364 is contracted into the telescopic groove 365 under the action of the elastic member 368 and leaves the clamping groove 3631, and the rotating shaft 361 cannot drive the annular meshing block 363 to rotate, so that the rotation of the fourth transmission member 36 is realized; the first control element is arranged by adopting an electrified coil, which is the prior art and is not described in detail herein, the elastic part is arranged by adopting a spiral spring, which is the prior art and is not described in detail here, the clamping column is made of a permanent magnet, when the first control piece is started, the clamping column and the first control piece repel each other, so that the clamping column moves into the clamping groove.
A working chamber 332 is arranged on the rotating disc 33, a first moving groove 333 for moving a rotating shaft 361 is arranged on one side of the working chamber 332, a second moving groove 334 is arranged on the other side of the working chamber 332, the end of the rotating shaft 361 is fixedly connected with an output shaft of the second driving part 37, a movable meshing gear ring 335 is arranged on the second moving groove 334, a meshing toothed plate 336 is further fixedly arranged on the second moving groove 334, one side of the annular meshing toothed block 363 is meshed with the meshing gear ring 335, and the other side of the annular meshing toothed block 363 is meshed with the meshing toothed plate 336; when the fourth transmission piece 36 needs to be moved, the clamping column 364 is inserted into the clamping groove 3631, the second driving piece 37 is started, the rotating shaft 361 drives the annular meshing block 363 to rotate, one side of the annular meshing block 363 rotates along with the meshing tooth on the meshing plate 363, the other side of the annular meshing block 363 rotates along with the meshing tooth on the meshing ring 335, the meshing plate 363 cannot move, therefore, the annular meshing block 363 needs to move to complete rotation, the meshing ring 335 moves along with the rotation of the annular meshing block 363, therefore, through the matching of the meshing ring 335 and the meshing plate 363, the second driving piece 37 drives the annular meshing block 363 to rotate, the movement of the annular meshing block 363 in the second moving groove 334 is realized, and the position of the fourth transmission piece 36 can be adjusted; the second driving device comprises the structure, and the toothed plate is arranged in the ring of the toothed ring.
The meshing gear ring 335 is provided with an auxiliary sliding block 3351 for assisting the meshing gear ring 335 to move on the second moving groove 334, the second driving element 37 is provided with a fixed shell 38, the bottom of the fixed shell 38 is provided with an auxiliary moving block 381, the rotating disc 33 is provided with a supporting frame 39 for supporting the second driving element 37 to move, the supporting frame 39 is provided with a third moving groove 391 matched with the auxiliary moving block 381, the auxiliary moving block 381 is provided with a second control element 382 for fixing the second driving element 37, and the bottom of the third moving groove 391 is provided with a fixing element 392 matched with the second control element 382; through the arrangement of the structure, the second driving part can move along with the movement of the fourth driving part so as to keep the driving of the fourth driving part and ensure the stable operation of the structure, and the arrangement of the fixing part and the second control part is convenient for fixing the second driving part when the second driving part stops moving so as to avoid the influence on the cleaning process of the valve body caused by the looseness of the second driving part when the second driving part is started; above-mentioned second control piece adopts the circular telegram coil setting, for prior art, and it is no longer repeated here, and above-mentioned mounting adopts iron cobalt nickel material to make, and above-mentioned second driving piece is when removing, and the second driving piece removes in the third shifting chute through the supplementary movable block on the fixed casing, and the back is stopped to the second driving piece, and the third control piece starts, produces suction to the mounting, fixes the casing at the assigned position to the realization is to the fixed of second driving piece.
The first driving device comprises two arc-shaped control blocks 41 for respectively controlling the movement of the second transmission piece 35 and the third transmission piece 36, a fourth moving groove 42 for allowing the arc-shaped control block 41 to move, a fifth transmission piece 43 for controlling the movement of the arc-shaped control block 41 and a fourth driving piece 44 for driving the fifth transmission piece 43 to rotate, two fifth moving grooves 338 for respectively allowing a fixed shaft 351 on the second transmission piece 35 and the third transmission piece 36 to move are arranged on the rotating disc 33, a second meshing tooth group 411 in meshing connection with the fifth transmission piece 43 is arranged on one side of the arc-shaped control block 41, a limiting slide block 412 is arranged on the other side of the arc-shaped control block 41, and a limiting slide groove 421 for allowing the limiting slide block 412 to move is arranged on the fourth moving groove 42; through the arrangement of the structure, the arc-shaped control block can realize the moving effect through the control of the fifth transmission piece, so that the distance between the second transmission piece and the third transmission piece can be conveniently adjusted, the inner walls of the valve bodies with different specifications and sizes are adapted, the application range of the device is increased, and meanwhile, the arc-shaped control block can be always kept in a tooth-meshed state with the fourth transmission piece through the arc-shaped arrangement, so that the device is very reliable and practical; the fifth transmission part adopts a gear arrangement, which is the prior art and is not repeated herein, the fourth driving part adopts a motor arrangement, which is the prior art and is not repeated herein, when the distance between the first cleaning rod and the second cleaning rod needs to be adjusted, the fourth transmission part is firstly moved to separate the fourth transmission part from the second transmission part and the third transmission part, then the fourth driving part is started, the fourth driving part drives the fifth transmission part to rotate, the fifth transmission part drives the arc-shaped control block to move until the first cleaning rod and the second cleaning rod contact with the inner wall of the valve body, the fourth driving part stops driving, then the fourth transmission part is moved to contact the fourth transmission part with the second transmission part and the third transmission part, so as to complete the adjustment of the second transmission part and the third transmission part, and the fixed shafts on the second transmission part and the third transmission part can freely rotate on the arc-shaped control block, so as to realize the effect of rotation under the driving of the fourth transmission piece.
Example two:
a low-cost valve body machining method comprises the following steps: a. molding: manufacturing a valve body mould according to the required size, and putting the valve body mould into a molding sand box to obtain molding sand; b. pouring: pouring molten steel prepared in advance into molding sand; c. and (3) cooling: waiting for cooling and forming of molten steel; d. and (3) heat treatment: e, grinding: polishing the surface of the manufactured valve body; f. cleaning: cleaning the polished valve body through valve body cleaning equipment; g. painting: carrying out paint spraying treatment on the cleaned valve body; the molding sand in the step a is prepared from the following raw materials in parts by weight: 100 parts of silica sand, 8 parts of water glass, 13 parts of water, 3 parts of phenolic resin, 3 parts of silicone oil, 13 parts of bentonite and 4 parts of aluminum tripolyphosphate; the sulfur content in the molten steel in the step b is not more than 0.15 percent, the phosphorus content is not more than 0.03 percent, the carbon content is 0.065 percent, the silicon content is 0.27 percent, and the manganese content is 0.43 percent; after the molten steel in the step c is cooled to normal temperature in the molding sand, the molded valve body can be taken out, and after the valve body is taken out, the surface of the valve body needs to be cleaned and polished; and d, performing heat treatment on the valve in the step d, wherein the quenching temperature when the valve body is quenched is controlled to be 800 ℃, and the tempering temperature when the valve body is tempered is controlled to be 630 ℃.
The valve body cleaning equipment in this embodiment has the same structure as the valve body cleaning equipment in the first embodiment, and is not described herein again.
Example three:
a low-cost valve body machining method comprises the following steps: a. molding: manufacturing a valve body mould according to the required size, and putting the valve body mould into a molding sand box to obtain molding sand; b. pouring: pouring molten steel prepared in advance into molding sand; c. and (3) cooling: waiting for cooling and forming of molten steel; d. and (3) heat treatment: e, grinding: polishing the surface of the manufactured valve body; f. cleaning: cleaning the polished valve body through valve body cleaning equipment; g. painting: carrying out paint spraying treatment on the cleaned valve body; the molding sand in the step a is prepared from the following raw materials in parts by weight: 100 parts of silica sand, 8 parts of water glass, 13 parts of water, 3 parts of phenolic resin, 3 parts of silicone oil, 13 parts of bentonite and 4 parts of aluminum tripolyphosphate; the sulfur content in the molten steel in the step b is not more than 0.15 percent, the phosphorus content is not more than 0.03 percent, the carbon content is 0.065 percent, the silicon content is 0.27 percent, and the manganese content is 0.42 percent; after the molten steel in the step c is cooled to normal temperature in the molding sand, the molded valve body can be taken out, and after the valve body is taken out, the surface of the valve body needs to be cleaned and polished; and d, performing heat treatment on the valve in the step d, wherein the quenching temperature when the valve body is quenched is controlled to be 800 ℃, and the tempering temperature when the valve body is tempered is controlled to be 630 ℃.
The valve body cleaning equipment in this embodiment has the same structure as the valve body cleaning equipment in the first embodiment, and is not described herein again.
Claims (7)
1. A low-cost valve body machining method is characterized in that: the method comprises the following steps:
a. molding: manufacturing a valve body mould according to the required size, and putting the valve body mould into a molding sand box to obtain molding sand;
b. pouring: pouring molten steel prepared in advance into molding sand;
c. and (3) cooling: waiting for cooling and forming of molten steel;
d. and (3) heat treatment: carrying out heat treatment on the molded valve body;
e. polishing: polishing the surface of the manufactured valve body;
f. cleaning: cleaning the polished valve body through valve body cleaning equipment;
g. painting: carrying out paint spraying treatment on the cleaned valve body;
wherein, the valve body cleaning equipment comprises a fixed base (1), a movable frame (2), a first cleaning rod (31) and a second cleaning rod (32) which are respectively used for cleaning the inner wall of the valve body, a rotating disk (33) used for controlling the revolution of the cleaning rods, a first transmission piece (21) used for controlling the rotation of the rotating disk (33), a first driving piece (22) used for driving the first transmission piece (21) to rotate, a second transmission piece (34) and a third transmission piece (35) used for respectively controlling the rotation of the first cleaning rod (31) and the second cleaning rod (32), a fourth transmission piece (36) used for controlling the rotation of the second transmission piece (34) and the third transmission piece (35), and a second driving piece (37) used for driving the rotation and the movement of the fourth transmission piece (36), the fixed base (1) is provided with a third driving piece (11) used for driving the movable frame (2) to move, a first driving device for driving the second transmission piece (34) and the third transmission piece (35) to move and a second driving device for driving the fourth transmission piece (36) to move are arranged on the rotating disc (33), and a first meshing tooth group (331) in meshing connection with the first transmission piece (21) is arranged on the rotating disc (33); before the inner wall of the valve body is cleaned, the third driving part (11) is started, the third driving part (11) drives the moving frame (2) to move, the moving frame (2) drives the rotating disc (33) to move, the rotating disc (33) drives the first cleaning rod (31) and the second cleaning rod (32) to move until the first cleaning rod (31) and the second cleaning rod (32) move into the valve body, then the first driving device and the second driving device are started, so that the first cleaning rod (31) and the second cleaning rod (32) move to be in contact with the inner wall of the valve body, then, start second driving piece (37), second driving piece (37) drive fourth driving medium (36), and fourth driving medium (36) drive second driving medium (34) and third driving medium (35) rotation, and second driving medium (34) and third driving medium (35) rotation to the realization is to the washing of valve body inner wall.
2. The low-cost valve body machining method according to claim 1, characterized in that: the molding sand in the step a is prepared from the following raw materials in parts by weight: 100 parts of silica sand, 7-9 parts of water glass, 11-15 parts of water, 2-5 parts of phenolic resin, 2-5 parts of silicone oil, 12-14 parts of bentonite and 3-5 parts of aluminum tripolyphosphate.
3. The low-cost valve body machining method according to claim 1, characterized in that: in the step b, the sulfur content in the molten steel is not more than 0.15 percent, the phosphorus content is not more than 0.03 percent, the carbon content is 0.06-0.07 percent, the silicon content is 0.25-0.30 percent, and the manganese content is 0.40-0.45 percent.
4. The low-cost valve body machining method according to claim 1, characterized in that: and c, after the molten steel in the step c is cooled to normal temperature in the molding sand, taking out the molded valve body, and after taking out the valve body, cleaning and polishing the surface of the valve body.
5. The low-cost valve body machining method according to claim 1, characterized in that: and d, performing heat treatment on the valve in the step d, wherein the quenching temperature when the valve body is quenched is controlled to be 740-860 ℃, and the tempering temperature when the valve body is tempered is controlled to be 610-660 ℃.
6. The low-cost valve body machining method according to claim 1, characterized in that: a rotating shaft (361) is arranged on the fourth transmission piece (36), an annular groove (362) is arranged on the rotating shaft (361), an annular meshing block (363) is arranged on the annular groove (362), a clamping column (364) and a telescopic groove (365) used for moving the clamping column (364) are arranged on the rotating shaft (361), a supporting block (366) is arranged at the bottom of the clamping column (364), a groove (3661) is arranged at the bottom of the supporting block (366), a first control piece (367) is arranged at the bottom of the telescopic groove (365), an elastic piece (368) connected with the groove (3661) is arranged on the first control piece (367), and a clamping groove (3631) used for inserting the clamping column (364) is arranged on the annular meshing block (363); when the rotating shaft (361) moves, the first control piece (367) is in a starting state, the clamping column (364) is pushed against, the clamping column (364) is inserted into the clamping groove (3631) and fixed to the annular meshing block (363), the elastic piece (368) stretches at the moment, the rotating shaft (361) can drive the annular meshing block (363) to rotate through rotation, when the rotating shaft (361) is fixed and does not move, the first control piece (367) is in a closing state, the clamping column (364) contracts into the telescopic groove (365) under the action of the elastic piece (368) and leaves the clamping groove (3631), and the rotating shaft (361) cannot drive the annular meshing block (363) to rotate, so that the rotation of the fourth transmission piece (36) is realized.
7. The low-cost valve body machining method according to claim 6, characterized in that: a working cavity (332) is formed in the rotating disc (33), a first moving groove (333) for a rotating shaft (361) to move is formed in one side of the working cavity (332), a second moving groove (334) is formed in the other side of the working cavity (332), the end portion of the rotating shaft (361) is fixedly connected with an output shaft of a second driving piece (37), a movable meshing gear ring (335) is formed in the second moving groove (334), a meshing tooth plate (336) is fixedly arranged on the second moving groove (334), one side of the annular meshing tooth block (363) is meshed with the meshing gear ring (335), and the other side of the annular meshing tooth block (363) is meshed with the meshing tooth plate (336); when the fourth transmission piece (36) needs to be moved, the clamping column (364) is inserted into the clamping groove (3631), the second driving piece (37) is started, the rotating shaft (361) drives the annular meshing block (363) to rotate, one side of the annular meshing block (363) rotates on the meshing plate (336) along the meshing teeth, the other side of the annular meshing block (363) rotates on the meshing ring (335) along the meshing teeth, the meshing plate (336) cannot move, therefore, the annular meshing block (363) needs to move to complete the rotation, the meshing ring (335) moves along with the rotation of the annular meshing block (363), therefore, through the matching of the meshing ring (335) and the meshing plate (336), the second driving piece (37) drives the annular meshing block (363) to rotate, the movement of the annular meshing block (363) in the second moving groove (334) is achieved, and the position of the fourth transmission piece (36) can be adjusted.
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