CN114807817A - Supersonic spray welding process for hard alloy on sealing surface of butterfly valve - Google Patents
Supersonic spray welding process for hard alloy on sealing surface of butterfly valve Download PDFInfo
- Publication number
- CN114807817A CN114807817A CN202210488116.9A CN202210488116A CN114807817A CN 114807817 A CN114807817 A CN 114807817A CN 202210488116 A CN202210488116 A CN 202210488116A CN 114807817 A CN114807817 A CN 114807817A
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- groove
- valve body
- sealing surface
- supersonic
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- 239000007921 spray Substances 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000003466 welding Methods 0.000 title claims abstract description 32
- 230000008569 process Effects 0.000 title claims abstract description 25
- 238000007789 sealing Methods 0.000 title claims abstract description 25
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 20
- 239000000956 alloy Substances 0.000 title claims abstract description 20
- 238000005488 sandblasting Methods 0.000 claims abstract description 35
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 238000002485 combustion reaction Methods 0.000 claims description 23
- 239000000843 powder Substances 0.000 claims description 20
- 244000309464 bull Species 0.000 claims description 14
- 239000011248 coating agent Substances 0.000 claims description 11
- 238000000576 coating method Methods 0.000 claims description 11
- 239000000446 fuel Substances 0.000 claims description 8
- 239000002737 fuel gas Substances 0.000 claims description 8
- 239000007789 gas Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 239000003350 kerosene Substances 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000005728 strengthening Methods 0.000 claims description 3
- 239000007888 film coating Substances 0.000 claims 1
- 238000009501 film coating Methods 0.000 claims 1
- 238000004140 cleaning Methods 0.000 abstract 1
- 230000003139 buffering effect Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007723 transport mechanism Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- 239000000945 filler Substances 0.000 description 1
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Images
Classifications
-
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/08—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for polishing surfaces, e.g. smoothing a surface by making use of liquid-borne abrasives
- B24C1/086—Descaling; Removing coating films
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/10—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for compacting surfaces, e.g. shot-peening
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C9/00—Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
- B65G47/90—Devices for picking-up and depositing articles or materials
- B65G47/902—Devices for picking-up and depositing articles or materials provided with drive systems incorporating rotary and rectilinear movements
-
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
- C23C4/129—Flame spraying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/02—Articles
Abstract
The invention discloses a butterfly valve sealing surface hard alloy supersonic speed spray welding process, which comprises the following steps: the method comprises the following steps: cleaning the surface of the valve body by a sand blasting machine; step two: the valve body is conveyed to a heavy-duty rotary table through a transfer mechanism; step three: carrying out spray welding treatment on the sealing surface of the valve body; the transfer mechanism comprises a base, a rotating rod rotatably arranged on the base, an extension plate and a valve body clamping component, wherein the valve body clamping component comprises an outer barrel, a sliding column, a clamp, a free rod, a tension spring and a telescopic cylinder, a barrel groove is formed in the outer barrel, a rotating area is arranged in the middle of the sliding column, the clamp is rotatably arranged in the rotating area, a ball groove is formed in the end face of a handle part, a ball body which rotates in the ball groove is arranged at one end of the free rod, a guide groove is formed in the top of the outer barrel groove, and an inclined plane which is used for the clamp to abut against and drives the tops of the two clamps to rotate towards one side close to each other is arranged on the inner wall of the top of the guide groove.
Description
Technical Field
The invention relates to the field of valve spray welding, in particular to a supersonic speed spray welding process for hard alloy on a butterfly valve sealing surface.
Background
The valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like, wherein the variety and the specification are quite various; the butterfly valve opening and closing piece is a disc-shaped disc plate, and rotates around the axis of the butterfly valve body in the valve body, so that the purpose of opening and closing or adjusting is achieved, the surface of the disc plate is provided with a spray welding layer for improving the surface hardness, the spray welding technology is a processing technology which takes oxyacetylene flame as a heat source, self-fluxing alloy powder is sprayed on a processed working surface, a coating is heated, the coating is melted and moistened on the processed surface, and metallurgical bonding is realized through mutual dissolution and diffusion of liquid alloy and the solid surface of a workpiece, so that a compact spray welding layer is formed; plasma spray welding is a process method for melting and depositing alloy by using alloy powder as filler metal, and is widely applied to the fields of valve manufacturing, repair and the like, at present, various eccentric valves still adopt the traditional manual surfacing welding process, which is time-consuming, labor-consuming and incapable of ensuring the surfacing welding quality, manual operation causes great harm to human bodies, corresponding production cost or loss of enterprises is increased, in addition, before the surfacing welding process, the valve needs to carry out sand blasting on a sealing surface through a sand blasting machine, after the treatment, the valve body is manually taken away from a discharge port platform of the sand blasting machine and is transferred to a rotating table for clamping, in the process, the valve body needs to be manually touched, the sealing surface of the valve body is polluted, and the adhesion effect of a coating film and the sealing surface during surfacing welding is influenced.
Disclosure of Invention
The invention aims to provide a supersonic speed spray welding process for hard alloy on a butterfly valve sealing surface, which aims to solve the technical problem.
In order to achieve the purpose, the invention provides the following technical scheme: a kind of butterfly valve sealing surface carbide supersonic speed spray welding craft, including control cabinet, supersonic speed powder feeder, flame control box, heavy rotary table, manipulator, fuel tank assembly, sand blasting machine, and transfer mechanism used for transferring the valve block set up on one side of the sand blasting machine, connect with the spray nozzle on the said manipulator;
the process for carrying out the spray welding on the sealing surface of the butterfly valve by using the equipment comprises the following steps:
the method comprises the following steps: the sand blasting machine realizes the repeated movement of the valve body in the sand blasting bin through a plurality of augers and positive and negative rotating motors, achieves the effect of intermittent sand blasting, removes the oxide on the surface of the valve body, eliminates the surface stress, and improves the surface strength of the valve body and the adhesive force after coating;
step two: transferring the valve body from the sand blasting machine to a heavy-duty rotary table through a transfer mechanism and clamping;
step three: the heavy-duty rotary table slides to a manipulator of the combustion chamber through a slide rail;
step four: the combustion improver and the combustion improver pass through an atomizing nozzle, fuel is fully atomized to form combustible mixed gas to enter a combustion chamber, the combustible mixed gas is ignited by an ignition system to generate high-temperature high-pressure fuel gas, and the high-temperature high-pressure fuel gas is ignited and combusted by the nozzle to form high-temperature high-pressure supersonic flame flow;
step five: the supersonic powder feeder feeds powder material into flame flow from a low pressure area, adjusts the flame size through a flame control box, heats and accelerates, and sprays the powder material to the surface of a workpiece to form a high-quality coating.
Preferably, the combustion improver in the second step is oxygen, and the fuel is kerosene.
Preferably, the transfer mechanism comprises a base, a rotating rod rotatably arranged on the base, a second telescopic cylinder arranged at the top of the rotating rod, an extension plate fixed on the second telescopic cylinder and a valve body clamp fixed at one end of the extension plate far away from the second telescopic cylinder, the valve body clamp comprises an outer cylinder arranged at the bottom of the extension plate, the valve body clamp comprises slide columns, clamps symmetrically arranged at two sides of the slide columns, free rods connected to the clamps, tension springs and telescopic cylinders connected with the slide columns, a cylinder groove is arranged in the outer cylinder, the slide columns are arranged in the cylinder groove in a vertical sliding manner, each clamp comprises a handle part arranged in a V shape and a clamping part connected to the bottom end of the handle part, a rotating area is arranged in the middle of each slide column, a short shaft penetrating through the clamps is arranged in the rotating area, the short shaft penetrates through the joints of the handle part and the clamping part, and the clamps are arranged in the rotating area through the matching with the short shaft, two sets of a side end face that the stalk portion is close to each other is provided with the ball groove, free rod one end is equipped with the spheroid, the spheroid rotates and sets up in the ball inslot, tension spring is fixed in the one end that two sets of free rods are close to each other, the telescoping cylinder is fixed in the extension top, and the telescoping cylinder output shaft runs through extension and fixed connection in the top of traveller, the urceolus is located the bobbin groove top and is equipped with the guide slot, guide slot top inner wall is equipped with and supplies the clamp to offset and drive two clamp tops and be close to one side pivoted inclined plane each other.
Preferably, the outer wall of the circumference of the free rod is provided with a supporting disc, and two ends of the tension spring respectively abut against the end surface of one side, close to each other, of the supporting discs on the two free rods.
Preferably, the strip-shaped groove has been seted up to the both sides inner wall of barrel casing, two the one end that the clamping part was kept away from each other is blocked respectively in the strip-shaped inslot, and with two the one side inner wall that the strip-shaped groove was kept away from each other offsets.
Preferably, the outer barrel bottom slides from top to bottom and is equipped with the sliding sleeve, the sliding sleeve lower part is equipped with the buffering portion, the buffering portion evenly is provided with the multiunit along the sliding sleeve circumference, and the buffering portion includes threaded connection's adjusting collar on the sliding sleeve, and the buffering portion still includes to the pole, support the coaxial setting of pole and sliding sleeve, be equipped with the spacing groove in the adjusting collar, support pole circumference outer wall and be equipped with the spacing dish that forms sliding connection with the spacing groove, the spacing inslot still is equipped with drive spacing dish groove towards the gliding spring of sliding sleeve cavity inside.
Preferably, be equipped with the ring channel in the sliding sleeve, the sliding sleeve top inserts in the ring channel, and the one end that the sliding sleeve inserted in the ring channel is equipped with the annular plate that forms sliding connection with the ring channel, the annular plate top is equipped with second tension spring, second tension spring evenly is equipped with the multiunit along annular plate week side.
Preferably, the base top is equipped with the rotating electrical machines, rotating electrical machines output and bull stick bottom fixed connection, base top end face is equipped with the sheath, and the base is located the sheath outside and is equipped with a set groove, set up spacing dish groove on the dish inslot wall, the lower part of bull stick circumference outer wall is equipped with and forms the carousel of rotating being connected with a set groove, be equipped with the spacing carousel that the card goes into spacing dish groove on the carousel outer wall, carousel top end face and bull stick outer wall connection have many strengthening ribs, and the bull stick bottom runs through the sheath and forms to rotate with the sheath and be connected.
Preferably, threaded connection has two sets of adjustable rings in the pivot, the base top is equipped with the base pole, the both sides of base pole all are equipped with travel switch, outwards extend on the adjustable ring outer wall has the stock.
Preferably, the bottom of the base is provided with a slide way, the slide way is provided with a dovetail groove, the bottom of the base is provided with a slide block embedded into the dovetail groove, and the bottom of the base is in threaded connection with a fixing bolt.
Compared with the prior art, the invention has the beneficial effects that:
the method comprises the following steps of (1) enabling combustion improver oxygen to pass through an atomizing nozzle, fully atomizing kerosene to form combustible mixed gas to enter a combustion chamber, igniting the combustible mixed gas by an ignition system to generate high-temperature high-pressure fuel gas, igniting and burning the fuel gas by a Laval nozzle to form high-temperature high-pressure supersonic flame flow, feeding powder materials into the flame flow from a low-pressure area by a powder feeding system, heating and accelerating the flame flow, and spraying the powder materials onto the surface of a workpiece to form a high-quality coating; the used fuel is kerosene, and the combustion improver is oxygen, so that the combustion is safer; through setting up transport mechanism, can transport sand blasting machine department to the valve body to heavy revolving platform on, avoid personnel to contact the valve body after the sand blasting machine polishes, guarantee the sealed face spray welding coating film effect of valve body.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view showing the structure of a valve body according to the present embodiment;
FIG. 2 is a schematic diagram illustrating the process flow structure in the present embodiment;
FIG. 3 is a schematic view showing the overall structure of the transport mechanism according to the present embodiment;
FIG. 4 is an exploded view of the highlighted clamp of this embodiment;
FIG. 5 is an enlarged schematic view of portion A of FIG. 4;
FIG. 6 is a schematic view showing the inside of the outer cylinder in this embodiment;
FIG. 7 is an enlarged schematic view of portion B of FIG. 6;
FIG. 8 is a schematic cross-sectional view of the highlighting guide slot of this embodiment;
FIG. 9 is a schematic sectional view of the highlighting slider of this embodiment.
In the drawings, the components represented by the respective reference numerals are listed below:
1. supersonic powder feeder; 2. a flame control cabinet; 3. a heavy duty rotary table; 4. a manipulator; 5. a sand blasting machine; 6. a transfer mechanism; 61. a base; 62. a rotating rod; 63. a second telescoping cylinder; 64. an extension plate; 65. A valve body clamping assembly; 651. an outer cylinder; 652. a traveler; 653. clamping; 6531. a handle; 6532. a clamping portion; 654. a free lever; 655. a tension spring; 656. a telescopic cylinder; 7. a barrel groove; 8. a rotation region; 9. a ball groove; 10. a sphere; 11. a guide groove; 12. a bevel; 13. a fixed block; 14. a second travel switch; 15. disc pushing; 17. a strip-shaped groove; 18. a sliding sleeve; 19. a buffer section; 191. an adjusting sleeve; 192. a support rod; 20. a limiting groove; 21. a limiting disc; 22. a spring; 23. an annular groove; 24. an annular plate; 25. a second tension spring; 26. a rotating electric machine; 27. a sheath; 28. a disc groove; 29. a limiting disc groove; 30. a turntable; 31. a limiting turntable; 32. reinforcing ribs; 33. an adjusting ring; 34. a base shaft; 35. a travel switch; 36. A long rod; 37. a slideway; 38. a dovetail groove; 39. a slide block.
Detailed Description
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.
Referring to fig. 1-9, the present invention provides a technical solution:
referring to fig. 1 and 2, the supersonic speed spray welding process for the hard alloy on the sealing surface of the butterfly valve comprises a control cabinet, a supersonic speed powder feeder 1, a flame control box, a heavy type rotary table 3, a manipulator 4, an oil tank assembly, a sand blasting machine 5 and a transfer mechanism 6 arranged on one side of the sand blasting machine 5 and used for transferring a valve body, wherein the manipulator 4 is connected with a nozzle;
the process for carrying out the spray welding on the sealing surface of the butterfly valve by using the equipment comprises the following steps:
the method comprises the following steps: the sand blasting machine 5 realizes the repeated movement of the valve body in the sand blasting bin through a plurality of augers and positive and negative rotating motors, achieves the effect of intermittent sand blasting, removes the oxide on the surface of the valve body, eliminates the surface stress, and improves the surface strength of the valve body and the adhesive force after coating;
step two: transferring the valve body from the sand blasting machine 5 to the heavy-duty rotary table 3 through the transfer mechanism 6 and clamping;
step three: the heavy-duty rotary table 3 slides to a manipulator 4 of the combustion chamber through a slide rail;
step four: the combustion improver and the combustion improver pass through an atomizing nozzle, fuel is fully atomized to form combustible mixed gas to enter a combustion chamber, the combustible mixed gas is ignited by an ignition system to generate high-temperature high-pressure fuel gas, and the high-temperature high-pressure fuel gas is ignited and combusted by the nozzle to form high-temperature high-pressure supersonic flame flow;
step five: the supersonic powder feeder 1 feeds powder materials into flame flow from a low-pressure area, adjusts the flame size through a flame control box, heats and accelerates, and sprays the powder materials to the surface of a workpiece through a spray gun to form a high-quality coating; the structure of the spray gun is designed according to the principle of a rocket engine, the pressure of a combustion chamber reaches 150PSI, the flame speed reaches over 2200m/s, the output power is high, and stepless regulation can be realized; the spray gun adopts radial powder feeding, and the new injection method ensures that the powder can be well dissolved and uniformly distributed in the whole flame, thereby improving the covering efficiency and the quality of a coating.
Specifically, the combustion improver in the step two is oxygen, the fuel is kerosene, the used fuel is kerosene, and the combustion improver is oxygen, so that the combustion is safer.
Specifically referring to fig. 4, 5 and 6, the transfer mechanism 6 includes a base 61, a rotating rod 62 rotatably disposed on the base 61, a second telescopic cylinder 63 disposed on the top of the rotating rod 62, an extending plate 64 fixed on the second telescopic cylinder 63, and a valve body clamping assembly 65 fixed on one end of the extending plate 64 far from the second telescopic cylinder 63, the valve body clamping assembly 65 includes an outer cylinder 651 disposed on the bottom of the extending plate 64, the valve body clamping assembly 65 further includes a sliding column 652, clamp 653 symmetrically disposed on both sides of the sliding column 652, a free rod 654 connected to the clamp 653, a tension spring 655 and a telescopic cylinder 656 connected to the sliding column 652, a cylinder groove 7 is disposed inside the outer cylinder 651, the sliding column 652 is disposed in the cylinder groove 7 in a vertically sliding manner, the clamp 653 includes a handle 6531 disposed in a V-shape and a clamping portion 6532 connected to the bottom end of the handle 6531, a rotating area 8 is disposed in the middle of the sliding column 652, a short shaft penetrating through the clamp 653 is arranged in the rotating area 8, the short shaft penetrates through the joint of the handle 6531 and the clamping part 6532, the clamp 653 is rotatably arranged in the rotating area 8 by matching with the short shaft, the ball grooves 9 are arranged on the end faces of one side, close to each other, of the two groups of the handles 6531, one end of the free rod 654 is provided with a ball 10, the ball 10 is rotatably arranged in the ball grooves 9, the tension spring 655 is fixed at one end, close to each other, of the two groups of the free rods 654, the telescopic cylinder 656 is fixed at the top of the extension plate 64, the output shaft of the telescopic cylinder 656 penetrates through the extension plate 64 and is fixedly connected to the top of the sliding column 652, the outer cylinder 651 is arranged at the top of the cylinder groove 7 and is provided with a guide groove 11 (refer to fig. 8), and the inner wall of the top of the guide groove 11 is provided with an inclined surface 12 (refer to fig. 8) for the clamp 653 to abut against and drive the tops of the two clamps 653 to rotate towards one side, close to each other; when the clamp 653 moves upward on top of the clamp 653 and contacts the ramp 12, the ramp 12 is angled relative to the clamp 653, and when the clamp 653 contacts the ramp 12 and continues to move upward, the two side shanks 6531 will rotate toward one side of each other and urge the gripping portions 6532 to expand outward, thereby releasing the valve body; it should be noted that: when the outer side of the handle portion 6531 is in a fit state with the inner wall of the barrel groove 7, the end surface of the inner side of the clamping portion 6532 is arranged in a right angle, and when the valve body is clamped by the clamping portion 6532, the valve body is fixed more stably by the clamping portion 6532; it should also be noted that: the side, close to each other, of the bottoms of the two clamping portions 6532 is an arc-shaped surface, and after the sliding column 652 slides downwards and the clamp 653 is abutted against the valve body, the sliding column rotates and expands outwards, so that the valve body is conveniently clamped into the inner sides of the two clamping portions 6532; what needs to be supplemented is: the fixed block 13 is arranged between the two clamps 653 in the rotating area 8, the second travel switch 14 electrically connected with the telescopic cylinder 656 is arranged at the bottom end of the fixed block 13, the position of the clamp 653 for clamping the valve body can be known through the mode, and when the second travel switch 14 touches the sand blasting machine 5, the clamping part 653 is just used for clamping the side edge concave part of the valve body.
Specifically, as shown in fig. 6 and 7, the abutting discs 15 are arranged on the circumferential outer walls of the free rods 654, two ends of the tension spring 655 abut against one side end faces of the abutting discs 15 on the two free rods 654, respectively, and the tension spring 655 abuts against the abutting discs 15 to drive one side of the handle portions 6531 away from each other to abut against the inner wall of the cylinder groove 7, so that the clamping portion 6532 does not fall off after clamping the valve body.
Specifically, as shown in fig. 6 and 7, the inner walls of the two sides of the barrel groove 7 are provided with a strip-shaped groove 17, the ends of the two clamping portions 6532 that are away from each other are respectively clamped into the strip-shaped groove 17 and abut against the inner wall of the side where the two strip-shaped grooves 17 are away from each other, and thus the clamp 653 can stably move up and down in the strip-shaped groove 17.
Specifically, as shown in fig. 4 and 5, a sliding sleeve 18 is slidably disposed at the bottom of an outer cylinder 651 up and down, a buffer portion 19 is disposed at the lower portion of the sliding sleeve 18, a plurality of groups of buffer portions 19 are uniformly disposed along the circumference of the sliding sleeve 18, each buffer portion 19 includes an adjusting sleeve 191 screwed onto the sliding sleeve 18, each buffer portion 19 further includes a resisting rod 192, each resisting rod 192 and the corresponding sliding sleeve 18 are coaxially disposed, a limiting groove 20 is disposed in each adjusting sleeve 191, a limiting disc 21 slidably connected with the limiting groove 20 is disposed on the outer wall of the circumference of each resisting rod 192, a spring 22 for driving each limiting disc groove 29 to slide towards the hollow interior of the corresponding sliding sleeve 18 is disposed in each limiting groove 20, a platform for storing a valve body of a sand blasting machine 5 (see fig. 2) is higher than a plane for clamping the valve body by a heavy turntable 3 (see fig. 2), and when a clamp 653 loosens the valve body, the valve body falls to abut against the resisting rod 192 and drive the outwards to slide and then fall on the heavy turntable 3, so as to reduce the falling height of the valve body, protecting the valve body to a certain extent; the sliding sleeve 18 is arranged on the sleeve in a vertically sliding manner, and can slide upwards when the clamp 653 clamps the valve body, so that the clamp 653 can normally clamp the valve body.
Specifically, referring to fig. 6 and 7, an annular groove 23 is formed in the sliding sleeve 18, the top of the sliding sleeve 18 is inserted into the annular groove 23, one end of the sliding sleeve 18 inserted into the annular groove 23 is provided with an annular plate 24 which forms sliding connection with the annular groove 23, the top of the annular plate 24 is provided with a second tension spring 25, the second tension spring 25 is uniformly provided with a plurality of groups along the peripheral side of the annular plate 24, the second tension spring 25 enables the sliding sleeve 18 to be located at the lowest position in the initial state, the sliding sleeve 18 extends downwards for a distance at one end of the bottom of the outer cylinder 651, and the valve body drops on the heavy turntable 3 to achieve a better buffering effect.
Referring to fig. 4 specifically, 9 shows, base 61 top is equipped with rotating electrical machines 26, rotating electrical machines 26 output and bull stick 62 bottom fixed connection, base 61 top end face is equipped with sheath 27, base 61 is located the sheath 27 outside and is equipped with a groove 28, set up spacing dish groove 29 on the 28 inner walls of dish, the lower part of 62 circumference outer walls of bull stick is equipped with and forms the carousel 30 of being connected with a groove 28 rotation, be equipped with the spacing carousel 31 of card income spacing dish groove 29 on the carousel 30 outer wall, carousel 30 top end face and 62 outer wall connection of bull stick have many strengthening ribs 32, 62 bottoms of bull stick run through sheath 27 and form to rotate with sheath 27 and be connected, through this mode, it is diversified support that the pivot obtains, strengthen the stability of bull stick 62.
Specifically refer to fig. 3, 4 and show, threaded connection has two sets of adjustable rings 33 in the pivot, and base 61 top is equipped with base pole 34, and the both sides of base pole 34 all are equipped with the travel switch 35 with rotating electrical machines 26 electric connection, and it has stock 36 to outwards extend on the adjustable ring 33 outer wall, through rotating adjustable ring 33, can control the position that stock 36 touched travel switch 35 after the bull stick 62 rotated, can put the position that the valve body needed to be put according to the clamp and put the subassembly and adjust.
Specifically, referring to fig. 9, a slide way 37 is arranged at the bottom of a base 61, a dovetail groove 38 is arranged on the slide way 37, a slide block 39 embedded in the dovetail groove 38 is arranged at the bottom of the base 61, a fixing bolt is connected to the bottom of the base 61 through a thread, the position relation between a clamping and placing assembly and a valve body taking and placing position can be adjusted through the sliding base 61, and the clamping and placing assembly can be conveyed to the position right above a heavy turntable 3 (refer to fig. 2) after clamping a valve body on a sand blasting machine 5 and rotating through a rotating rod 62.
One specific application example of this embodiment is:
when the device is used, the base 61 is slid on the slideway 37 to a proper position, the base 61 is fixed through the fixing bolt, the two groups of adjusting rings 33 on the rotating rod 62 are used for blasting sand to the valve body and conveying the valve body to the outside of a sand blasting bin in the sand blasting machine 5 (the sand blasting bin at the position where the sand blasting machine 5 performs sand blasting to the valve body and conveys the valve body is the prior art, and therefore, the description is omitted); the rotary motor 26 is driven, the rotary motor 26 drives the rotary rod 62 to rotate until the long rod 36 on one group of adjusting rings 33 touches the travel switch 35 and stops, at this time, the outer cylinder 651 is positioned right above the valve body to drive the second telescopic cylinder 63, the second telescopic cylinder 63 contracts the output shaft and drives the outer cylinder 651 to move downwards, the outer cylinder 651 moves downwards to enable the sliding sleeve 18 to abut against a platform of the sand blasting machine 5 for placing the valve body, the sliding sleeve 18 is driven to slide towards the annular groove 23 to a proper position, the telescopic cylinder 656 is started, the sliding column 652 is driven to move downwards in the outer cylinder 651 through the output shaft, the sliding column 652 moves downwards and drives the clamp 653 to move downwards, (it should be noted that the adjusting sleeves 191 and 653 on the sliding sleeve 18 are arranged in a staggered manner, the clamp 653 can move to the lower side of the adjusting sleeve 191), the clamp 653 moves downwards to enable the clamp 653 to continue to move downwards after the clamping portion 6532 contacts with the valve body, the clamp 653 expands outwards to enable the valve body to enter between the clamp 653 on both sides after the arc-shaped surface of the clamping portion 6532 abuts against the valve body, after the valve body enters between the two clamps 653, the two clamping portions 6532 are driven to rotate inwards and clamp the valve body under the action of the tension spring 655, at this time, the second travel switch 14 touches the sand blasting machine 5 to control the telescopic cylinder 656 to stop moving downwards, the telescopic cylinder 656 drives the sliding column 652 to move upwards, the valve body abuts against the abutting rod 192 and drives the abutting rod 192 to slide outwards in the adjusting sleeve 191 in the process that the sliding column 652 moves upwards, the end face of the abutting rod 192 abutting against the valve body is a spherical surface, and after the valve body moves upwards under the drive of the clamps 653 and is separated from the abutment against the abutting rod 192, the abutting rod 192 returns under the action of the second tension spring 25; the rotating rod 62 is driven to rotate by the driving rotating motor 26 until another group of long rods 36 is contacted with the travel switch 35, the outer cylinder 651 is driven to be right above the heavy-duty rotary table 3, the second telescopic cylinder 63 is driven to continuously contract the output shaft, the position of the outer cylinder 651 is reduced, the height distance between the outer cylinder 651 and the heavy-duty rotary table 3 is reduced, the telescopic cylinder 656 is driven and drives the sliding column 652 to continuously move upwards until the clamp 653 abuts against the inclined surface 12 in the guide groove 11, the handle 6531 of the clamp 653 is driven to rotate inwards, the two free rods 654 extrude the tension spring to expand the clamping part 6532 outwards so as to loosen the valve body, the valve body falls downwards, the valve body abuts against the abutting rod 192 when falling, the abutting rod 192 slides outwards in the adjusting sleeve 191 under the gravity action of the valve body until the valve body falls on the heavy-duty rotary table 3, finally the valve body is clamped by the three-jaw chuck 655 on the heavy-duty rotary table 3, and the heavy-duty rotary table 3 slides into a combustion chamber through a sliding rail, finally, the manipulator 4 drives the spray gun to the sealing surface of the valve body for spray welding; and then the second telescopic cylinder 63 extends out of the output shaft to drive the cylinder to move upwards, and the steps are repeated to carry out the next valve body transfer.
In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like are used in the orientation or positional relationship indicated on the drawings only for the convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore, are not to be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.
Claims (10)
1. A butterfly valve sealing surface hard alloy supersonic speed spray welding process is characterized in that: the device comprises a control cabinet, a supersonic powder feeder (1), a flame control box, a heavy rotary table (3), a manipulator (4), an oil tank assembly, a sand blasting machine (5) and a transfer mechanism (6) which is arranged on one side of the sand blasting machine (5) and used for transferring a valve body, wherein the manipulator (4) is connected with a nozzle;
the process for carrying out the spray welding on the sealing surface of the butterfly valve by using the equipment comprises the following steps:
the method comprises the following steps: the sand blasting machine (5) realizes the repeated movement of the valve body in the sand blasting bin through a plurality of augers and positive and negative rotating motors, achieves the effect of intermittent sand blasting, removes the oxide on the surface of the valve body, eliminates the surface stress, and improves the surface strength of the valve body and the adhesive force after film coating;
step two: transferring the valve body from the sand blasting machine (5) to a heavy-duty rotary table (3) through a transferring mechanism (6) and clamping;
step three: the heavy-duty rotary table (3) slides to a manipulator (4) of the combustion chamber through a slide rail;
step four: the combustion improver and the combustion improver pass through an atomizing nozzle, fuel is fully atomized to form combustible mixed gas to enter a combustion chamber, the combustible mixed gas is ignited by an ignition system to generate high-temperature high-pressure fuel gas, and the high-temperature high-pressure fuel gas is ignited and combusted by the nozzle to form high-temperature high-pressure supersonic flame flow;
step five: the supersonic powder feeder (1) feeds powder material into flame flow from a low-pressure area, adjusts the flame size through a flame control box, heats and accelerates, and sprays the powder material to the surface of a workpiece to form a high-quality coating.
2. The supersonic spray welding process for the hard alloy of the butterfly valve sealing surface according to claim 1, characterized in that: and in the second step, the combustion improver is oxygen, and the fuel is kerosene.
3. The supersonic spray welding process for the hard alloy of the butterfly valve sealing surface according to claim 1, characterized in that: the transfer mechanism (6) comprises a base (61), a rotating rod (62) rotatably arranged on the base (61), a second telescopic cylinder (63) arranged at the top of the rotating rod (62), an extension plate (64) fixed on the second telescopic cylinder (63), and a valve body clamping and placing assembly (65) fixed at one end, far away from the second telescopic cylinder (63), of the extension plate (64), wherein an output shaft of the second telescopic cylinder (63) is fixedly connected with the rotating rod (62), the valve body clamping and placing assembly (65) comprises an outer cylinder (651) arranged at the bottom of the extension plate (64), the valve body clamping and placing assembly (65) further comprises a sliding column (652), clamps (653) symmetrically arranged at two sides of the sliding column (652), a free rod (654) connected to the clamps (653), a tension spring (655) and a telescopic cylinder (656) connected with the sliding column (652), and a cylinder groove (7) is arranged in the outer cylinder (651), the sliding columns (652) are arranged in the barrel groove (7) in a vertically sliding mode, the clamp (653) comprises a handle portion (6531) arranged in a V shape and a clamping portion (6532) connected to the bottom end of the handle portion (6531), a rotating area (8) is arranged in the middle of each sliding column (652), a short shaft penetrating through the clamp (653) is arranged in the rotating area (8), the short shaft penetrates through the joint of the handle portion (6531) and the clamping portion (6532), the clamp (653) is arranged in the rotating area (8) in a rotating mode through matching with the short shaft, ball grooves (9) are formed in the end faces, close to each other, of the two groups of handle portions (6531), a ball body (10) is arranged at one end of each free rod (654), the ball body (10) is arranged in the ball grooves (9) in a rotating mode, the tension springs (655) are fixed at one ends, close to each other, the two groups of the free rods (654), and the telescopic cylinders (656) are fixed at the tops of the extension plates (64), the telescopic cylinder (656) output shaft runs through the top of the extension plate (64) and is fixedly connected with the sliding column (652), the outer cylinder (651) is positioned at the top of the cylinder groove (7) and is provided with a guide groove (11), and the inner wall of the top of the guide groove (11) is provided with an inclined surface (12) which is used for enabling the clamp (653) to abut against and driving the tops of the two clamps (653) to rotate towards one side close to each other.
4. The supersonic spray welding process for the hard alloy of the butterfly valve sealing surface according to claim 3, characterized in that: and the outer wall of the circumference of the free rod (654) is provided with a supporting disc (15), and two ends of the tension spring (655) are respectively propped against the end surface of one side, close to the supporting discs (15) on the two free rods (654), of the free rod.
5. The supersonic hard alloy spray welding process for the sealing surface of the butterfly valve as claimed in claim 4, wherein: a strip-shaped groove (17) is formed in the inner walls of the two sides of the barrel groove (7), and two one ends, far away from each other, of the clamping portions (6532) are clamped into the strip-shaped groove (17) respectively and abut against the inner wall, far away from each other, of one side of the strip-shaped groove (17).
6. The supersonic spray welding process for the hard alloy of the butterfly valve sealing surface according to claim 3, characterized in that: the utility model discloses a spacing dish of sliding connection, including urceolus (651), sliding sleeve (18) are equipped with sliding sleeve (18) to the upper and lower slip in urceolus (651) bottom, sliding sleeve (18) lower part is equipped with buffer portion (19), buffer portion (19) evenly are provided with the multiunit along sliding sleeve (18) circumference, and buffer portion (19) include threaded connection adjusting collar (191) on sliding sleeve (18), and buffer portion (19) still include to support pole (192), support pole (192) and sliding sleeve (18) coaxial setting, are equipped with spacing groove (20) in adjusting collar (191), support pole (192) circumference outer wall be equipped with spacing groove (20) and form sliding connection's spacing dish (21), still be equipped with drive spacing dish groove (29) in spacing groove (20) towards sliding sleeve (18) cavity inside gliding spring (22).
7. The supersonic hard alloy spray welding process for the sealing surface of the butterfly valve as claimed in claim 6, wherein: be equipped with ring channel (23) in sliding sleeve (18), in sliding sleeve (18) top inserted ring channel (23), one end that sliding sleeve (18) inserted in ring channel (23) was equipped with and forms sliding connection's annular plate (24) with ring channel (23), annular plate (24) top is equipped with second tension spring (25), second tension spring (25) evenly are equipped with the multiunit along annular plate (24) week side.
8. The supersonic spray welding process for the hard alloy of the butterfly valve sealing surface according to claim 3, characterized in that: base (61) top is equipped with rotating electrical machines (26), rotating electrical machines (26) output and bull stick (62) bottom fixed connection, base (61) top end face is equipped with sheath (27), and base (61) are located sheath (27) outside and are equipped with set groove (28), set up spacing dish groove (29) on dish groove (28) inner wall, the lower part of bull stick (62) circumference outer wall is equipped with and forms carousel (30) of rotating and being connected with set groove (28), be equipped with spacing carousel (31) of card income spacing dish groove (29) on carousel (30) outer wall, carousel (30) top end face and bull stick (62) outer wall connection have many strengthening ribs (32), and bull stick (62) bottom runs through sheath (27) and forms to rotate with sheath (27) and is connected.
9. The supersonic hard alloy spray welding process for the sealing surface of the butterfly valve as claimed in claim 8, wherein: threaded connection has two sets of adjustable rings (33) in the pivot, base (61) top is equipped with base pole (34), the both sides of base pole (34) all are equipped with travel switch (35), outwards extend on adjustable ring (33) outer wall has stock (36).
10. The supersonic spray welding process for the hard alloy of the butterfly valve sealing surface according to claim 3, characterized in that: the improved structure is characterized in that a slide way (37) is arranged at the bottom of the base (61), a dovetail groove (38) is formed in the slide way (37), a sliding block (39) embedded into the dovetail groove (38) is arranged at the bottom of the base (61), and a fixing bolt is connected to the bottom of the base (61) through threads.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210488116.9A CN114807817B (en) | 2022-05-06 | 2022-05-06 | Ultrasonic spray welding process for hard alloy on sealing surface of butterfly valve |
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| CN202210488116.9A CN114807817B (en) | 2022-05-06 | 2022-05-06 | Ultrasonic spray welding process for hard alloy on sealing surface of butterfly valve |
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| CN114807817B CN114807817B (en) | 2024-02-27 |
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| CN113909015A (en) * | 2021-11-02 | 2022-01-11 | 水利部杭州机械设计研究所 | Automatic supersonic flame thermal spraying spray gun in narrow space and thermal spraying device thereof |
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| CN101786193A (en) * | 2010-03-22 | 2010-07-28 | 天津市富赛克阀门有限公司 | Method for spray-welding anisotropic material on cast iron valve plate |
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| CN114807817B (en) | 2024-02-27 |
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