CN114083077A - Multi-station welding equipment for precise aluminum castings - Google Patents
Multi-station welding equipment for precise aluminum castings Download PDFInfo
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- CN114083077A CN114083077A CN202210069080.0A CN202210069080A CN114083077A CN 114083077 A CN114083077 A CN 114083077A CN 202210069080 A CN202210069080 A CN 202210069080A CN 114083077 A CN114083077 A CN 114083077A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/20—Preliminary treatment of work or areas to be soldered, e.g. in respect of a galvanic coating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/08—Auxiliary devices therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/04—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass for both machining and other metal-working operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/08—Non-ferrous metals or alloys
- B23K2103/10—Aluminium or alloys thereof
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- Optics & Photonics (AREA)
- Arc Welding In General (AREA)
Abstract
The invention discloses multi-station welding equipment for precise aluminum castings, which relates to the field of welding equipment and comprises a welding equipment shell, wherein the lower end of the welding equipment shell is provided with a binding plate, a drill rod can be used for opening holes on the surface of the precise aluminum castings and is provided with a straight hole and a special-shaped hole, the inner wall of the straight hole or the special-shaped hole is cleaned by water when the drill rod is positioned in the straight hole or the special-shaped hole, water and stains after cleaning are discharged, the drill rod is pushed to automatically retreat in the process of injecting liquid brazing filler metal into the straight hole or the special-shaped hole, the liquid brazing filler metal is injected into the straight hole, the special-shaped hole and a slit groove generated in the precise aluminum castings after the drill rod retreats the hole, the welding reinforcement of the precise aluminum castings is completed, the novel injection type brazing mode is utilized to complete the welding of the precise aluminum castings, when two adjacent groups of precise aluminum castings are welded, the straight hole or the special-shaped hole can be obliquely punched at the contact position of the two groups of the precise aluminum castings through the drill rod, so that the liquid brazing filler metal enters the straight holes or the special-shaped holes to finish the mode of welding from the inside of the precision aluminum casting.
Description
Technical Field
The invention relates to the field of welding equipment, in particular to multi-station welding equipment for precision aluminum castings.
Background
Welding equipment refers to the equipment needed to implement a welding process. The welding equipment comprises a welding machine, welding process equipment and a welding auxiliary appliance.
The aluminum casting is a device made of pure aluminum or aluminum alloy obtained by a casting processing method. Aluminum parts or aluminum alloy parts of various shapes and sizes obtained by pouring aluminum or aluminum alloy heated to a liquid state into a cavity of a mold using a sand mold or a metal mold are generally called aluminum die castings.
The inside crack or hollowing appear easily of precision aluminum casting when the shaping, are difficult to detect, and because its intensity is relatively poor when precision aluminum casting uses, often easy fracture, cracked position is difficult welded fastening, even intensity is also lower after the welding, and the crack appears easily when the stress that precision aluminum casting bore when using is higher, and the crack shape is different, causes whole precision aluminum casting to scrap.
Therefore, it is necessary to invent a multi-station welding apparatus for precision aluminum castings to solve the above problems.
Disclosure of Invention
The invention aims to provide multi-station welding equipment for precision aluminum castings, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the multi-station welding equipment for the precise aluminum castings comprises a welding equipment shell, wherein a binding plate is arranged at the lower end of the welding equipment shell, the welding equipment shell is of a cylindrical shell structure, the lower end of the welding equipment shell is provided with an opening, a lifting base plate is movably arranged in the welding equipment shell, the lower end of the lifting base plate is fixedly welded with a transmission unit, the end part of the transmission unit is in transmission connection with a drill rod, the lower end of the drill rod corresponds to a protruding hole on the surface of the attaching plate, the welding equipment shell is provided with a pneumatic driving assembly for pushing the drill rod to move out of the extending hole, the drill rod is provided with a conveying channel for cleaning water to enter and exit and liquid brazing filler metal to discharge, the conveying channel is arranged in the drill rod and penetrates through the bottom of the drill rod, a liquid brazing filler metal injection assembly and a cleaning water inlet and outlet assembly are arranged on one side of the welding equipment shell, and an inclination adjusting assembly is arranged at the bottom of the welding equipment shell.
Preferably, the pneumatic drive assembly is including fixing the pressurization unit at welding equipment shell upper end lateral surface, form the flexible cavity with the pressurization unit intercommunication between the upper end of lift base plate and welding equipment shell is inside, the fixed rubber seal that is provided with in outer lane department of lift base plate, the outer lane department activity laminating of rubber seal is at the inner wall of welding equipment shell, and rubber seal seals between lift base plate outer lane and welding equipment shell inner wall, the fixed welding in top of flexible cavity has the high strength spring that draws and hold the lift base plate.
In the embodiment, the drill rod can be used for drilling holes on the surface of a precision aluminum casting, is provided with a straight hole and a special-shaped hole, and when the drill rod is positioned in the straight hole or the special-shaped hole, the inner wall of the straight hole or the special-shaped hole is cleaned by water, and the cleaned water and dirt are discharged, then the drill rod is pushed to automatically retreat in the process of injecting the liquid brazing filler metal into the straight hole or the special-shaped hole, the liquid brazing filler metal is injected into the straight hole, the special-shaped hole and a slit groove generated in the precise aluminum casting after the drill rod retreats, the welding reinforcement of the precision aluminum casting is completed, the welding of the precision aluminum casting is completed by utilizing the novel mode of injection molding type brazing, when two adjacent groups of precision aluminum castings are welded, straight holes or special-shaped holes can be obliquely drilled at the contact positions of the two groups of precision aluminum castings through the drill rod, the liquid brazing filler metal enters the straight holes or the special-shaped holes, the mode of welding from the inside of the precision aluminum casting is completed, surface welding is replaced, and the phenomenon of low welding strength is avoided.
Preferably, the cleaning water inlet and outlet assembly comprises a conveying mechanism fixed on the surface of the attaching plate and a water tank arranged on the surface of the attaching plate, the water tank is communicated with the conveying mechanism through a second conveying pipeline, and the conveying mechanism is connected with the conveying channel through a switching assembly.
The precise aluminum casting drilling tool comprises a transmission unit, a pressurizing unit, a lifting base plate, a telescopic cavity, a heating pump and a servo motor, wherein the transmission unit drives a drill rod to rotate, the surface of a precise aluminum casting is drilled, the pressurizing unit is started during drilling, external air is compressed and input into the telescopic cavity by the pressurizing unit so as to push the lifting base plate to move in the telescopic cavity, the transmission unit in the telescopic cavity descends, holes with fixed lengths are punched, the transmission unit can use the servo motor and other devices, and the pressurizing unit can use the heating pump and other devices;
in drilling rod drilling process, carry the air through the pressurization unit in the gasbag that the unit corresponds to welding equipment shell bottom in step, the air makes the gasbag slope that corresponds the position, the welding equipment shell can produce the slope this moment, the drilling rod is along with the welding equipment shell slope, and the in-process slope of drilling rod drilling can finally form the abnormal shape hole, once only drill, with the width that increases the abnormal shape hole, when being applicable to accurate aluminum casting surface crack more, adopt the mode of inclined drilling to once only bore the great hole of diameter, then pour into liquid brazing filler metal into in the abnormal shape hole, accomplish the brazing of this position and fix.
Preferably, the switching assembly comprises a conveying unit and a guide unit, the conveying unit comprises two groups of limit nuts connected to the outer ring of the upper end of the drill rod through thread fit, a rotating ring movably sleeved at the outer ring of the drill rod is arranged between the two groups of limit nuts, the rotating ring and the outer ring of the drill rod are sealed, an annular chamber is arranged inside the rotating ring, a conveying connecting hole is formed in the drill rod and is communicated between the annular chamber and a conveying channel, a plurality of groups of conveying connecting holes are arranged in an annular array shape, the guide unit comprises a conveying pipeline fixed on one side of the rotating ring, one end of the conveying pipeline is communicated with the annular chamber, the other end of the conveying pipeline is communicated with the conveying mechanism, an accommodating groove for the guide unit to move through is formed in the inner wall of the welding equipment shell, the accommodating grooves are distributed along the height direction of the welding equipment shell, and a plurality of groups of guide rings distributed up and down are arranged in the accommodating groove, the conveying pipeline passes through the middle parts of the guide rings, guide ring connecting plates are fixedly welded on the side surfaces of the guide rings, and the upper guide ring connecting plate and the lower guide ring connecting plate which are adjacent are fixedly welded through connecting springs.
Furthermore, after drilling is finished, the conveying mechanism is started firstly, the electromagnetic valve on the second conveying pipeline is opened, water in the water tank sequentially passes through the second conveying pipeline, the annular chamber, the conveying connecting hole and the conveying channel injection hole, the hole is cleaned, the conveying mechanism sucks out the water after cleaning, the cleanness degree in the hole can be ensured after repeated cleaning, the phenomenon that deep holes are not easy to clean in the prior art is replaced, after the hole is inclined, the electromagnetic valve on the second conveying pipeline is closed, the electromagnetic valve on the first conveying pipeline is opened, the liquid brazing filler metal stored in the liquid brazing filler metal storage tank sequentially passes through the first conveying pipeline, the annular chamber, the conveying connecting hole and the conveying channel injection hole through the conveying mechanism, the brazing fixation of the hole is completed, and the original cracks on the surface or inside of the precision aluminum casting and the cracks to be generated can be enlarged by the drilling mode, therefore, the liquid brazing filler metal is injected into the hole positions, the liquid brazing filler metal can be extruded into gaps in the inner layer structure of the precision aluminum casting through high pressure to be used for filling, and the welding effect is good.
Preferably, the liquid solder injection assembly comprises a liquid solder storage box arranged on the surface of the joint plate, the liquid solder storage box is communicated with the conveying mechanism through a first conveying pipeline, electromagnetic valves are arranged on the first conveying pipeline and the second conveying pipeline, and a lower plugging assembly and a sealing unit are arranged on the drill rod.
Specifically, when water passes through the conveying channel and enters the hole, the water pushes the magnetic attraction ring to descend through the conveying channel to stretch the extension spring, the magnetic attraction ring descends in the conveying channel, the magnetic attraction ring and the stainless steel ring body attract each other, the stainless steel ring body is driven by the magnetic attraction ring to descend synchronously, at the moment, the bonding layer at the bottom of the stainless steel ring body can be attached and fixed on the surface of the precision aluminum casting to seal the upper end of the punching position, the magnetic attraction ring moves rapidly along with the impact of high-pressure water, the force of the stainless steel ring body falling on the surface of the precision aluminum casting is large, the stainless steel ring body can be stably bonded on the surface of the precision aluminum casting through the bonding layer, when the periphery of the hole on the surface of the precision aluminum casting is blocked, the bottom of the hole can be cleaned through water tightness, and liquid brazing filler metal in the injection hole can also be injected into the high-pressure injection hole, when the pressure of the injected liquid brazing filler metal reaches a certain degree, the drill rod can be pushed to ascend integrally to compress the upper part of the telescopic chamber, the liquid brazing filler metal is easy to enter the inner gap of the precision aluminum casting when being injected under pressure, and the liquid brazing filler metal can be completely injected and filled in the hole in a high-pressure injection mode from the bottom of the hole, so that the closed brazing is completed.
Preferably, the sealing unit comprises a stainless steel ring body movably sleeved at the outer ring of the drill rod, an adhesive layer is fixedly arranged on the lower surface of the stainless steel ring body, an extension spring is fixedly welded on the inner wall of the upper end of the conveying channel, a magnetic attraction ring is fixedly welded at the bottom of the extension spring, the outer ring of the magnetic attraction ring is movably attached to the inner wall of the conveying channel, the magnetic attraction ring and the stainless steel ring body are attracted and fixed, a storage tank for storing a release agent is arranged inside one side of the stainless steel ring body, a spring is fixedly welded at the end part of the storage tank, a sealing plate is arranged at the end part of the spring, an extension groove penetrating through the inner ring of the storage tank is arranged on one side of the storage tank close to the inner ring of the stainless steel ring body, the sealing plate movably penetrates out of the extension groove, and the length of the sealing plate is larger than the aperture inside the stainless steel ring body, the hole in the stainless steel ring body is a rectangular hole, and the sealing plate is of a rectangular plate structure matched with the rectangular hole.
Wherein, high strength spring can play the purpose of drawing and holding the lift base plate and reset, when the pressurizing unit takes the air in with flexible cavity out, high strength spring draws and holds lift base plate and drive unit and reset, when the drilling rod rotates, its outside swivel becket motionless, when in actual use, pipeline's upper end is the stereoplasm pipeline section, pipeline's upper end tip activity laminating is at the inner wall of welding equipment shell, and can not squint with the restriction swivel becket, and pipeline's lower extreme is soft pipeline section, convenient flexible adaptation, and stop nut plays spacing effect at the both ends of swivel becket.
Preferably, the lower plugging component comprises an outer ring groove arranged at the outer ring of the lower end of the drill rod, an elastic sleeve is movably arranged in the outer ring groove, a side surface pressurizing hole communicated with the interior of the conveying channel is formed in the bottom of the outer ring groove, the upper end of the elastic sleeve is fixedly welded in the upper end of the outer ring groove, the outer ring of the elastic sleeve and the outer ring of the drill rod are kept parallel, and the elastic sleeve is of a ring structure.
In the device, the drilling rod is when shifting out from the hole, the inside closing plate of holding tank can stretch out from stretching out the groove through the spring action of spring-lift spring, thereby the top in the hole is blocked completely, make the liquid brazing filler metal of downthehole high pressure injection difficult outflow, form the connection structure of high strength when guaranteeing that liquid brazing filler metal solidifies, and when the closing plate shifts out from stretching out the groove, its surface is scribbled the release agent of storage in the holding tank, when liquid brazing filler metal solidifies, easily take away stainless steel ring body and closing plate from the hole top, high durability and convenient use.
Preferably, the gradient adjusting assembly comprises a peripheral limiting ring fixedly arranged at the outer ring of the bottom of the shell of the welding equipment, an air bag is fixedly arranged on the lower surface of the peripheral limiting ring, the bottom of the air bag and the upper surface of the attaching plate are fixed, the air bag is distributed with a plurality of groups in a circular array form along the track of the peripheral limiting ring, a connecting rod body is arranged between the lower surface of the inner ring of the peripheral limiting ring and the upper surface of the attaching plate, the upper end of the connecting rod body is movably hinged on a hinged seat of the lower surface of the peripheral limiting ring, the lower end of the connecting rod body is movably hinged on a hinged plate of the upper surface of the attaching plate, and a plurality of groups are distributed in a circular array form between the peripheral limiting ring and the attaching plate.
In this embodiment, flexible cavity and gasbag use a set of pressure cell, and when pressure cell pressurized in for the gasbag that corresponds, the welding equipment shell wholly inclines, and inclination and direction are controlled according to aerifing or the gas charge volume in to the gasbag that corresponds, can bore the heterotypic hole of different sizes and shape on accurate aluminum casting surface, have replaced the mode that can only open the straight hole among the prior art, and the practicality is strong.
Preferably, one side of pressurization unit is provided with the pressurization trunk line, the lower extreme intercommunication of pressurization trunk line has annular hollow pipeline, the outer lane position at the welding equipment shell that annular hollow pipeline is the loop configuration and distributes, the lower extreme intercommunication of annular hollow pipeline has the pressurization branch pipeline, the pressurization branch pipeline is provided with the multiunit, and the gasbag that the lower extreme intercommunication of multiunit pressurization branch pipeline corresponds the position.
It should be noted that, when water or liquid solder in the transfer passage injected into the bottom of the hole, a part of water or liquid solder was discharged from the side pressurizing hole at high pressure, thereby pushing the elastic sleeve lower end that can elastically deform to expand outwards, sealing the upper end of the bottom of the hole, thereby making the liquid solder not discharged from the gap between the drill rod and the hole in advance, and according to the drill rod moving to the different hole positions and the different hole diameters, the high-pressure liquid solder can expand in real time to expand the elastic sleeve to seal the gap between the drill rod and the hole, the melting point of the material in the elastic sleeve, the drill rod and the device contacting the liquid solder is lower than that of the solder, therefore, the device can be used for injecting the liquid solder into the hole at high pressure.
Preferably, the diameter of the extending hole is consistent with that of the inner ring of the shell of the welding equipment, and the diameter of the drill rod is one fifth of that of the extending hole.
Furthermore, the welding equipment shell and the attaching plate are connected through a plurality of groups of connecting rod bodies, so that the welding equipment shell can be inclined, the basic stability between the welding equipment shell and the attaching plate is kept, the welding equipment shell and the attaching plate are not easy to fall off and overlarge in offset, each group of pressurizing branch pipelines are provided with electromagnetic valves for controlling gas pressed in the pressurizing units to be conveyed to air bags at different positions, and the conveying mechanism can use devices such as a conveying pump and the like and can be used for conveying liquid brazing filler metal and water;
in the device, when a drill rod descends, a conveying pipeline can stretch, so that the conveying pipeline is prevented from being damaged by the drill rod when contacting the outside of the drill rod, an accommodating groove for storing the conveying pipeline is formed in the inner wall of a welding equipment shell, a guide ring sleeved outside the conveying pipeline is arranged in the accommodating groove, when the conveying pipeline stretches, the conveying pipeline can move along the inner part of the guide ring, the conveying pipeline cannot contact the drill rod, and the safety is high;
welding equipment shell is when using, can be provided with monitoring components such as camera at the inner wall lower extreme position of welding equipment shell, also can be provided with the observation window with welding equipment shell one end, position and size that convenient observation hole was seted up, avoid trompil error, and the lower extreme inner wall of welding equipment shell still can be provided with electric putter or cylinder, the end connection of electric putter or cylinder has the spacing plate body of restriction in the lift base plate bottom, the height of the spacing plate body of control, the height that steerable drilling rod descends, make the degree of depth of trompil keep accurate, the drilling rod tilting, can be used to welding and the multiple welding mode of accurate aluminum casting surface multistation, adopt neotype welding mode, the height and the welded quality of accurate aluminum casting have been improved.
The invention has the technical effects and advantages that:
1. the invention relates to a multi-station welding device for precision aluminum castings, which comprises a welding device shell, wherein the lower end of the welding device shell is provided with a binding plate, the welding device shell is of a cylindrical shell structure, the lower end of the welding device shell is provided with an opening, a lifting base plate is movably arranged in the welding device shell, the lower end of the lifting base plate is fixedly welded with a transmission unit, the end part of the transmission unit is in transmission connection with a drill rod, the drill rod can be used for opening the surface of the precision aluminum casting, is provided with a straight hole and a special-shaped hole, the inner wall of the straight hole or the special-shaped hole is cleaned by water when the drill rod is positioned in the straight hole or the special-shaped hole, the cleaned water and stains are discharged, then the drill rod is pushed to automatically retreat in the process of injecting liquid brazing filler metal into the straight hole, the special-shaped hole and a slit groove generated in the precision aluminum casting after the drill rod retreats, so as to complete the welding reinforcement of the precision aluminum casting, the welding of the precision aluminum castings is completed by using a novel injection-type brazing mode, when two adjacent groups of precision aluminum castings are welded, straight holes or special-shaped holes can be obliquely punched at the contact positions of the two groups of precision aluminum castings through the drill rod, so that the liquid brazing filler metal enters the straight holes or the special-shaped holes, the mode of welding from the inside of the precision aluminum castings is completed, the surface welding is replaced, and the welding strength is low;
2. according to the multi-station welding equipment for the precise aluminum castings, the transmission unit drives the drill rod to rotate, the surface of the precise aluminum castings is drilled, the pressurizing unit is started during drilling, external air is compressed and input into the telescopic chamber by the pressurizing unit, so that the lifting base plate is pushed to move in the telescopic chamber, the transmission unit in the telescopic chamber descends, holes with fixed lengths are punched, the transmission unit can use devices such as a servo motor, and the pressurizing unit can use devices such as a heating pump;
3. according to the multi-station welding equipment for the precise aluminum casting, in the drilling process of the drill rod, air is synchronously conveyed into the corresponding air bag at the bottom of the welding equipment shell through the pressurizing unit, the air enables the air bag at the corresponding position to incline, at the moment, the welding equipment shell can incline, the drill rod inclines along with the welding equipment shell, a special-shaped hole is finally formed by the inclination in the drilling process of the drill rod, the hole is drilled at one time to increase the width of the special-shaped hole, and when the surface of the precise aluminum casting has more cracks, the hole with a larger diameter is drilled at one time in an inclined drilling mode, and then liquid brazing filler metal is injected into the special-shaped hole to complete brazing and fixing at the position;
4. the invention relates to multi-station welding equipment for precise aluminum castings, which is characterized in that after drilling is finished, a conveying mechanism is started, an electromagnetic valve on a second conveying pipeline is opened, water in a water tank sequentially passes through the second conveying pipeline, the conveying pipeline, an annular chamber, a conveying connecting hole and a conveying channel injection hole, the hole is cleaned, the conveying mechanism sucks the water out after cleaning, the cleanness degree in the hole can be ensured after repeated cleaning, the phenomenon that deep holes are difficult to clean in the prior art is replaced, after the hole is inclined, the electromagnetic valve on the second conveying pipeline is closed, the electromagnetic valve on a first conveying pipeline is opened, liquid brazing filler metal stored in a liquid brazing filler metal storage tank sequentially passes through the first conveying pipeline, the annular chamber, the conveying connecting hole and the conveying channel injection hole, hole brazing fixation is finished, and the original cracks on the surface or in the precision aluminum casting and the cracks to be generated are enlarged by the drilling mode, therefore, the liquid brazing filler metal is injected through the hole position, the liquid brazing filler metal can be extruded into a gap in the inner layer structure of the precision aluminum casting through high pressure for filling, and the welding effect is good;
5. the invention relates to a multi-station welding device for precise aluminum castings, when water enters the hole through a conveying passage, the water pushes a magnetic attraction ring to descend through the conveying passage to stretch a tension spring, the magnetic attraction ring descends in the conveying passage, the stainless steel ring descends synchronously under the action of the magnetic attraction ring due to the attraction of the magnetic attraction ring and the stainless steel ring, at the moment, a bonding layer at the bottom of the stainless steel ring can be fixedly attached to the surface of the precise aluminum casting to seal the upper end of the punching position, the magnetic attraction ring moves rapidly along with the impact of high-pressure water, so that the force of the stainless steel ring falling on the surface of the precise aluminum casting is large, the stainless steel ring can be stably bonded on the surface of the precise aluminum casting through the bonding layer, when the periphery of the hole on the surface of the precise aluminum casting is blocked, the bottom of the hole can be cleaned through water tightness, and liquid brazing filler metal in the injection hole can also be injected into the high-pressure injection hole, when the pressure of the injected liquid brazing filler metal reaches a certain degree, the drill rod is pushed to integrally rise to compress the upper part of the telescopic cavity, so that the liquid brazing filler metal is easy to enter a gap inside the precision aluminum casting when being injected under pressure, and the liquid brazing filler metal can be completely injected and filled in the hole in a high-pressure injection mode from the bottom of the hole to complete the closed brazing;
6. according to the multi-station welding equipment for the precise aluminum castings, when the drill rod is moved out of the hole, the sealing plate in the storage groove can extend out of the extending groove under the elastic force of the spring, so that the sealing plate is completely blocked above the hole, liquid brazing filler metal injected into the hole at high pressure is not prone to flowing out, a high-strength connecting structure is formed when the liquid brazing filler metal is solidified, and when the sealing plate is moved out of the extending groove, the surface of the sealing plate is coated with the release agent stored in the storage groove, so that the stainless steel ring body and the sealing plate can be conveniently taken away from the hole when the liquid brazing filler metal is solidified, and the use is convenient;
7. according to the multi-station welding equipment for the precise aluminum castings, when water or liquid solder in the conveying channel is injected to the bottom of the hole, part of the water or the liquid solder is discharged from the side pressurizing hole at high pressure, so that the lower end of the elastic sleeve capable of elastically deforming is pushed to be outwards propped open, the upper end of the bottom of the hole is sealed, the liquid solder is prevented from being discharged from a gap between the drill rod and the hole in advance, the high-pressure liquid solder can timely prop the elastic sleeve to seal the gap between the drill rod and the hole according to different hole positions and different hole diameters when the drill rod moves to the hole, and the melting points of the elastic sleeve, the drill rod and a material in the device, which is in contact with the liquid solder, are lower than the melting point of the solder, so that the multi-station welding equipment can be used for injecting the liquid solder into the hole at high pressure.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
FIG. 2 is a schematic bottom structure of the present invention.
Fig. 3 is a cross-sectional view of the present invention.
Fig. 4 is a schematic structural diagram of a conveying unit and a sealing unit of the invention.
Fig. 5 is a schematic structural view of a guide unit according to the present invention.
Fig. 6 is a schematic structural diagram of the conveying mechanism of the present invention.
Fig. 7 is a schematic view of the structure of the drill rod of the present invention.
FIG. 8 is a schematic view of the structure of the bladder of the present invention.
Fig. 9 is a schematic structural view of the elastic sleeve of the present invention when expanded and opened.
FIG. 10 is a schematic structural diagram of the precision aluminum casting with the special-shaped holes drilled on the surface thereof according to the present invention.
FIG. 11 is a schematic structural view of the oblique brazing fixation between two adjacent sets of precision aluminum castings according to the present invention.
In the figure: 1. welding the equipment shell; 2. attaching a plate; 3. a pressurizing unit; 4. a main pressurized pipeline; 5. an annular hollow conduit; 6. pressurizing and dividing pipelines; 7. a peripheral limit ring; 8. an air bag; 9. a drill stem; 10. an outlet hole; 11. a telescoping chamber; 12. a high-strength spring; 13. a rubber seal ring; 14. lifting the substrate; 15. a transmission unit; 16. a conveying unit; 17. a guide unit; 18. a sealing unit; 19. a delivery conduit; 20. a delivery channel; 21. a conveying mechanism; 22. a first delivery conduit; 23. a second delivery conduit; 24. a liquid brazing filler metal storage tank; 25. a water tank; 26. a conveying connecting hole; 27. an annular chamber; 28. a rotating ring; 29. a limit nut; 30. an extension spring; 31. a magnetic attraction ring; 32. a stainless steel ring body; 33. a storage tank; 34. a sealing plate; 35. a spring for springing up; 36. extending out of the groove; 37. an adhesive layer; 38. a receiving groove; 39. a guide ring; 40. a connecting spring; 41. a guide ring connecting plate; 42. a lateral pressurization hole; 43. an elastic sleeve; 44. an outer ring groove; 45. connecting the rod body; 46. a profiled hole; 47. precision aluminum castings.
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.
The invention provides multi-station welding equipment for precise aluminum castings, which comprises a welding equipment shell 1, wherein the lower end of the welding equipment shell 1 is provided with a joint plate 2, the welding equipment shell 1 is of a cylindrical shell structure, the lower end of the welding equipment shell 1 is provided with an opening, a lifting base plate 14 is movably arranged in the welding equipment shell 1, the lower end of the lifting base plate 14 is fixedly welded with a transmission unit 15, the end part of the transmission unit 15 is in transmission connection with a drill rod 9, the lower end of the drill rod 9 corresponds to an extending hole 10 on the surface of the joint plate 2, the welding equipment shell 1 is provided with an air pressure driving assembly for pushing the drill rod 9 to move out of the extending hole 10, the drill rod 9 is provided with a conveying channel 20 for cleaning water to enter and exit and discharging the liquid brazing filler metal, the conveying channel 20 is arranged in the drill rod 9 and penetrates through the bottom of the drill rod 9, one side of the welding equipment shell 1 is provided with a liquid brazing filler metal injection assembly and a cleaning water entering and exiting assembly, the bottom of the welding equipment housing 1 is provided with a tilt adjustment assembly.
The pneumatic driving assembly comprises a pressurizing unit 3 fixed on the outer side surface of the upper end of a welding equipment shell 1, a telescopic cavity 11 communicated with the pressurizing unit 3 is formed between the lifting substrate 14 and the inner portion of the upper end of the welding equipment shell 1, a rubber sealing ring 13 is fixedly arranged at the outer ring of the lifting substrate 14, the outer ring of the rubber sealing ring 13 is movably attached to the inner wall of the welding equipment shell 1, the rubber sealing ring 13 is sealed between the outer ring of the lifting substrate 14 and the inner wall of the welding equipment shell 1, and a high-strength spring 12 for pulling the lifting substrate 14 is fixedly welded at the top of the telescopic cavity 11.
In the embodiment, the drill rod 9 can be used for drilling holes on the surface of the precision aluminum casting 47, the drill rod 9 is provided with a straight hole and a special-shaped hole 46, the inner wall of the straight hole or the special-shaped hole 46 is cleaned by water when the drill rod 9 is positioned in the straight hole or the special-shaped hole 46, the cleaned water and dirt are discharged, then the drill rod 9 is pushed to automatically retreat in the process of injecting liquid brazing filler metal into the straight hole or the special-shaped hole 46 after the drill rod 9 retreats, the liquid brazing filler metal is injected into the straight hole, the special-shaped hole 46 and a gap groove generated inside the precision aluminum casting 47 to complete the welding reinforcement of the precision aluminum casting 47, the novel injection type brazing mode is utilized to complete the welding of the precision aluminum casting 47, when two adjacent precision aluminum castings 47 are welded, the straight hole or the special-shaped hole 46 can be obliquely drilled at the contact position of the two precision aluminum castings 47 through the drill rod 9, so that the liquid brazing filler metal enters the straight hole or the special-shaped hole 46 to complete the internal welding mode of the precision aluminum casting 47, replaces the phenomenon of surface welding and low welding strength.
The cleaning water inlet and outlet assembly comprises a conveying mechanism 21 fixed on the surface of the attaching plate 2 and a water tank 25 arranged on the surface of the attaching plate 2, the water tank 25 is communicated with the conveying mechanism 21 through a second conveying pipeline 23, and the conveying mechanism 21 is connected with the conveying channel 20 through a switching assembly.
It should be noted that, when the transmission unit 15 drives the drill rod 9 to rotate, a hole is drilled on the surface of the precision aluminum casting 47, when the hole is drilled, the pressurization unit 3 is started, the pressurization unit 3 compresses external air and inputs the compressed air into the telescopic chamber 11 to push the lifting base plate 14 to move inside the telescopic chamber 11, so that the transmission unit 15 in the telescopic chamber 11 descends, and a hole with a fixed length is drilled, the transmission unit 15 may use a servo motor or the like, and the pressurization unit 3 may use a heating pump or the like;
in the drilling process of the drill rod 9, air is conveyed to the air bag 8 corresponding to the bottom of the welding equipment shell 1 synchronously through the pressurizing unit 3, the air enables the air bag 8 corresponding to the position to incline, the welding equipment shell 1 can incline at the moment, the drill rod 9 inclines along with the welding equipment shell 1, the inclined in the drilling process of the drill rod 9 finally forms the special-shaped hole 46, the hole is drilled at one time, the width of the special-shaped hole 46 is increased, when the surface crack of the precise aluminum casting 47 is more, the hole with the larger diameter is drilled at one time in an inclined drilling mode, then liquid brazing filler metal is injected into the special-shaped hole 46, and the brazing fixation of the position is completed.
The switching assembly comprises a conveying unit 16 and a guiding unit 17, the conveying unit 16 comprises two groups of limiting nuts 29 connected to the outer ring of the upper end of the drill rod 9 in a threaded fit manner, a rotating ring 28 movably sleeved at the outer ring of the drill rod 9 is arranged between the two groups of limiting nuts 29, the rotating ring 28 and the outer ring of the drill rod 9 are sealed, an annular cavity 27 is arranged inside the rotating ring 28, a conveying connecting hole 26 is arranged on the drill rod 9, the conveying connecting hole 26 is communicated between the annular cavity 27 and a conveying channel 20, a plurality of groups of conveying connecting holes 26 are arranged in an annular array manner, the guiding unit 17 comprises a conveying pipeline 19 fixed on one side of the rotating ring 28, one end of the conveying pipeline 19 is communicated with the annular cavity 27, the other end of the conveying pipeline is communicated with a conveying mechanism 21, an accommodating groove 38 for the guiding unit 17 to pass through is arranged on the inner wall of the welding equipment shell 1, and the accommodating grooves 38 are distributed along the height direction of the welding equipment shell 1, a plurality of groups of guide rings 39 distributed up and down are arranged in the accommodating groove 38, the conveying pipeline 19 passes through the middle parts of the guide rings 39, guide ring connecting plates 41 are fixedly welded on the side surfaces of the guide rings 39, and the guide ring connecting plates 41 adjacent up and down are fixedly welded through connecting springs 40.
Further, after drilling, the conveying mechanism 21 is started first, the electromagnetic valve on the second conveying pipeline 23 is opened, water in the water tank 25 sequentially passes through the second conveying pipeline 23, the conveying pipeline 19, the annular cavity 27, the conveying connecting hole 26 and the injecting hole of the conveying channel 20, the hole is cleaned, the conveying mechanism 21 sucks the water out after cleaning, the cleanness degree in the hole can be ensured after repeated cleaning, the phenomenon that deep holes are not easy to clean in the prior art is replaced, after the hole is inclined, the electromagnetic valve on the second conveying pipeline 23 is closed, the electromagnetic valve on the first conveying pipeline 22 is opened, liquid brazing filler metal stored in the liquid brazing filler metal storage box 24 sequentially passes through the first conveying pipeline 22, the conveying pipeline 19, the annular cavity 27, the conveying connecting hole 26 and the injecting hole of the conveying channel 20 through brazing fixation, the original crack on the surface or in the precision aluminum casting 47 and the crack to be generated soon can be enlarged by the drilling mode, therefore, liquid brazing filler metal is injected into the hole positions, the liquid brazing filler metal can be extruded into gaps in the inner layer structure of the precision aluminum casting 47 through high pressure for filling, and the welding effect is good.
The liquid brazing filler metal injection assembly comprises a liquid brazing filler metal storage box 24 arranged on the surface of the attaching plate 2, the liquid brazing filler metal storage box 24 is communicated with the conveying mechanism 21 through a first conveying pipeline 22, electromagnetic valves are arranged on the first conveying pipeline 22 and the second conveying pipeline 23, and a lower plugging assembly and a sealing unit 18 are arranged on the drill rod 9.
Specifically, when water enters the hole through the conveying passage 20, the water pushes the magnetic attraction ring 31 to descend through the conveying passage 20 to stretch the extension spring 30, the magnetic attraction ring 31 descends in the conveying passage 20, the stainless steel ring body 32 is driven by the magnetic attraction ring 31 to descend synchronously due to attraction between the magnetic attraction ring 31 and the stainless steel ring body 32, at this time, the adhesive layer 37 at the bottom of the stainless steel ring body 32 can be attached and fixed on the surface of the precision aluminum casting 47 to seal the upper end of the hole, and the magnetic attraction ring 31 moves rapidly along with the impact of high-pressure water, so that the force of the stainless steel ring body 32 falling on the surface of the precision aluminum casting 47 is large, the stainless steel ring body 32 can be stably adhered on the surface of the precision aluminum casting 47 through the adhesive layer 37, when the periphery of the hole on the surface of the precision aluminum casting 47 is blocked, the bottom of the hole can be cleaned through water tightness, and the liquid brazing filler metal in the injection hole can also be injected into the high-pressure injection hole, when the pressure of the injected liquid brazing filler metal reaches a certain degree, the drill rod 9 is pushed to ascend integrally and the upper part of the telescopic cavity 11 is compressed, so that the liquid brazing filler metal is easily injected into the gap inside the precision aluminum casting 47 when being pressurized, and the liquid brazing filler metal is completely injected into and filled in the hole through a high-pressure injection mode from the bottom of the hole, and the closed brazing is completed.
The sealing unit 18 comprises a stainless steel ring body 32 movably sleeved at the outer ring of the drill rod 9, an adhesive layer 37 is fixedly arranged on the lower surface of the stainless steel ring body 32, an extension spring 30 is fixedly welded on the inner wall of the upper end of the conveying channel 20, a magnetic attraction ring 31 is fixedly welded at the bottom of the extension spring 30, the outer ring of the magnetic attraction ring 31 is movably attached to the inner wall of the conveying channel 20, the magnetic attraction ring 31 and the stainless steel ring body 32 are attracted and fixed, a storage groove 33 for storing a release agent is arranged inside one side of the stainless steel ring body 32, an elastic lifting spring 35 is fixedly welded at the end part of the storage groove 33, a sealing plate 34 is arranged at the end part of the elastic lifting spring 35, an extending groove 36 which penetrates through to the inner ring of the storage groove 33 is arranged on one side of the storage groove 33, which is close to the inner ring of the stainless steel ring body 32, the sealing plate 34 movably penetrates out of the extending groove 36, and the length of the sealing plate 34 is larger than the inner hole diameter of the stainless steel ring body 32, the hole inside the stainless steel ring body 32 is a rectangular hole, and the sealing plate 34 is a rectangular plate-shaped structure matched with the rectangular hole.
Wherein, high strength spring 12 can play the purpose of drawing and holding lift base plate 14 and reseing, when pressure unit 3 took the air in the flexible chamber 11 out, high strength spring 12 draws and holds lift base plate 14 and transmission unit 15 and reseed, when drilling rod 9 rotated, its outside swivel becket 28 was motionless, when in actual use, the upper end of transfer pipe 19 was the stereoplasm pipeline section, the upper end tip activity laminating of transfer pipe 19 was at the inner wall of welding equipment shell 1, and can not squint with restriction swivel becket 28, and the lower extreme of transfer pipe 19 was soft pipeline section, convenient flexible adaptation, and stop nut 29 played spacing effect at the both ends of swivel becket 28.
The lower plugging assembly comprises an outer ring groove 44 arranged at the outer ring of the lower end of the drill rod 9, an elastic sleeve 43 is movably arranged in the outer ring groove 44, a side surface pressurizing hole 42 communicated with the interior of the conveying channel 20 is formed in the bottom of the outer ring groove 44, the upper end of the elastic sleeve 43 is fixedly welded in the upper end of the outer ring groove 44, the outer ring of the elastic sleeve 43 and the outer ring of the drill rod 9 are kept parallel, and the elastic sleeve 43 is of a ring structure.
In the device, when the drilling rod 9 is moved out from the hole, the sealing plate 34 inside the storage tank 33 can stretch out from the stretching groove 36 through the elastic force action of the spring 35, thereby the hole is completely blocked above the hole, the liquid brazing filler metal injected into the hole at high pressure is difficult to flow out, a high-strength connecting structure is formed when the liquid brazing filler metal is solidified, when the sealing plate 34 is moved out from the stretching groove 36, the surface of the sealing plate is coated with the release agent stored in the storage tank 33, when the liquid brazing filler metal is solidified, the stainless steel ring body 32 and the sealing plate 34 are convenient to take away from the hole, and the use is convenient.
The gradient adjusting assembly comprises a peripheral limiting ring 7 fixedly arranged at the outer ring of the bottom of a welding equipment shell 1, an air bag 8 is fixedly arranged on the lower surface of the peripheral limiting ring 7, the bottom of the air bag 8 is fixed to the upper surface of a binding plate 2, the air bag 8 is distributed with multiple groups in a circular array mode along the track of the peripheral limiting ring 7, a connecting rod body 45 is arranged between the lower surface of the inner ring of the peripheral limiting ring 7 and the upper surface of the binding plate 2, the upper end of the connecting rod body 45 is movably hinged to a hinged seat at the lower surface of the peripheral limiting ring 7, the lower end of the connecting rod body 45 is movably hinged to a hinged plate at the upper surface of the binding plate 2, and the connecting rod body 45 is distributed with multiple groups in a circular array mode between the peripheral limiting ring 7 and the binding plate 2.
In this embodiment, the telescopic chamber 11 and the airbag 8 use a set of pressurizing units 3, when the pressurizing units 3 pressurize the corresponding airbag 8, the welding equipment shell 1 is wholly inclined, the inclination angle and the direction are controlled according to the inflation or inflation quantity to the corresponding airbag 8, the special-shaped holes 46 with different sizes and shapes can be drilled on the surface of the precision aluminum casting 47, the mode that only straight holes can be drilled in the prior art is replaced, and the practicability is high.
One side of the pressurizing unit 3 is provided with a pressurizing main pipeline 4, the lower end of the pressurizing main pipeline 4 is communicated with an annular hollow pipeline 5, the annular hollow pipeline 5 is distributed in a ring structure at the outer ring position of the welding equipment shell 1, the lower end of the annular hollow pipeline 5 is communicated with a pressurizing branch pipeline 6, the pressurizing branch pipeline 6 is provided with a plurality of groups, and the lower ends of the groups of pressurizing branch pipelines 6 are communicated with air bags 8 at corresponding positions.
It should be noted that, when the water or the liquid solder in the conveying channel 20 is injected into the bottom of the hole, a part of the water or the liquid solder is discharged from the side pressurizing hole 42 at a high pressure, so as to push the lower end of the elastic sleeve 43 capable of elastically deforming to be outwards spread, and seal the upper end of the bottom of the hole, so that the liquid solder is not discharged from the gap between the drill rod 9 and the hole in advance, and according to the difference of the position of the hole and the diameter of the hole when the drill rod 9 moves to the position of the hole, the high-pressure liquid solder can spread the elastic sleeve 43 to seal the gap between the drill rod 9 and the hole in real time, and the melting point of the material in the elastic sleeve 43, the drill rod 9 and the device, which is in contact with the liquid solder, is lower than that of the solder, so that the device can be used for injecting the liquid solder into the hole at a high pressure.
The diameter of the extension hole 10 is the same as the diameter of the inner ring of the welding device housing 1, and the diameter of the drill rod 9 is one fifth of the diameter of the extension hole 10.
Furthermore, the welding equipment shell 1 and the attaching plate 2 are connected through a plurality of groups of connecting rod bodies 45, the welding equipment shell 1 can be inclined, the basic stability between the welding equipment shell 1 and the attaching plate 2 is kept, the welding equipment shell is not easy to fall off and the deviation is overlarge, each group of pressurizing branch pipelines 6 are provided with electromagnetic valves for controlling gas pressed in the pressurizing units 3 to be conveyed to the air bags 8 at different positions, and the conveying mechanism 21 can use devices such as a conveying pump and the like and can be used for conveying liquid brazing filler metal and water;
in the device, when a drill rod 9 descends, a conveying pipeline 19 can stretch, in order to avoid the damage of the conveying pipeline 19 to the outside of the conveying pipeline 19 contacting the drill rod 9 by the drill rod 9, an accommodating groove 38 for storing the conveying pipeline 19 is arranged on the inner wall of a welding equipment shell 1, a guide ring 39 sleeved outside the conveying pipeline 19 is arranged in the accommodating groove 38, and when the conveying pipeline 19 stretches, the conveying pipeline moves along the inside of the guide ring 39 without contacting the drill rod 9, so that the safety is high;
welding equipment shell 1 is when using, can be provided with monitoring components such as camera at welding equipment shell 1's inner wall lower extreme position, also can be provided with the observation window with 1 one end of welding equipment shell, position and size that convenient observation hole was seted up, avoid the trompil to go wrong, and welding equipment shell 1's lower extreme inner wall still can be provided with electric putter or cylinder, the end connection of electric putter or cylinder has the spacing plate body of restriction in lifting substrate 14 bottom, the height of the spacing plate body of control, the height that steerable drilling rod 9 descends, make the degree of depth of trompil keep accurate, drilling rod 9 tilting, can be used to welding and the multiple welding mode of the surperficial multistation of accurate aluminum casting 47, adopt neotype welding mode, the height and the welded quality of accurate aluminum casting 47 have been improved.
The working principle is as follows: the drill rod 9 can be used for drilling holes on the surface of the precision aluminum casting 47, is provided with a straight hole and a special-shaped hole 46, the inner wall of the straight hole or the special-shaped hole 46 is cleaned by water when the drill rod 9 is positioned in the straight hole or the special-shaped hole 46, water and dirt after cleaning are discharged, then the drill rod 9 is pushed to automatically retreat in the process of injecting liquid brazing filler metal into the straight hole or the special-shaped hole 46, the liquid brazing filler metal is injected into the straight hole, the special-shaped hole 46 and a gap groove generated in the precision aluminum casting 47 after the drill rod 9 retreats, the welding reinforcement of the precision aluminum casting 47 is completed, the novel injection type brazing mode is utilized to complete the welding of the precision aluminum casting 47, when the two adjacent precision aluminum castings 47 are welded, the straight hole or the special-shaped hole 46 can be obliquely drilled at the contact position of the two precision aluminum castings 47 through the drill rod 9, so that the liquid brazing filler metal enters the straight hole or the special-shaped hole 46, and the welding mode from the inside of the precision aluminum casting 47 is completed, the phenomenon of low welding strength is substituted for surface welding;
when the transmission unit 15 drives the drill rod 9 to rotate, the surface of the precision aluminum casting 47 is drilled, when the hole is drilled, the pressurizing unit 3 is started, the pressurizing unit 3 compresses external air and inputs the compressed air into the telescopic chamber 11 so as to push the lifting base plate 14 to move in the telescopic chamber 11, the transmission unit 15 in the telescopic chamber 11 descends, holes with fixed length are punched, the transmission unit 15 can use a servo motor and other devices, and the pressurizing unit 3 can use a heating pump and other devices;
in the drilling process of the drill rod 9, air is synchronously conveyed into the corresponding air bag 8 at the bottom of the welding equipment shell 1 through the pressurizing unit 3, the air enables the air bag 8 at the corresponding position to incline, at the moment, the welding equipment shell 1 can incline, the drill rod 9 inclines along with the welding equipment shell 1, the special-shaped hole 46 can be formed at last by inclining in the drilling process of the drill rod 9, the hole is drilled at one time to increase the width of the special-shaped hole 46, and when the surface of a precision aluminum casting 47 has more cracks, the hole with a larger diameter is drilled at one time in an inclined drilling mode, and then liquid brazing filler metal is injected into the special-shaped hole 46 to complete brazing and fixing at the position;
after drilling, the conveying mechanism 21 is started firstly, the electromagnetic valve on the second conveying pipeline 23 is opened, water in the water tank 25 sequentially passes through the second conveying pipeline 23, the conveying pipeline 19, the annular chamber 27, the conveying connecting hole 26 and the injection hole of the conveying channel 20, the hole is cleaned, the conveying mechanism 21 sucks the water out after cleaning, the cleanness degree in the hole can be ensured after repeated cleaning, the phenomenon that deep holes are difficult to clean in the prior art is replaced, after inclination, the electromagnetic valve on the second conveying pipeline 23 is closed, the electromagnetic valve on the first conveying pipeline 22 is opened, the liquid brazing filler metal stored in the liquid brazing filler metal storage box 24 sequentially passes through the first conveying pipeline 22, the conveying pipeline 19, the annular chamber 27, the conveying connecting hole 26 and the injection hole of the conveying channel 20, the brazing fixation of the hole is completed, and the original crack and the crack to be generated on the surface or inside of the precision aluminum casting 47 can be enlarged by the drilling mode, therefore, the liquid brazing filler metal is injected through the hole position, the liquid brazing filler metal can be extruded into a gap in the inner layer structure of the precision aluminum casting 47 through high pressure for filling, and the welding effect is good;
when water enters the hole through the conveying channel 20, the water pushes the magnetic attraction ring 31 to descend through the conveying channel 20 to stretch the extension spring 30, the magnetic attraction ring 31 descends in the conveying channel 20, the stainless steel ring body 32 is driven by the magnetic attraction ring 31 to descend synchronously due to attraction between the magnetic attraction ring 31 and the stainless steel ring body 32, at the moment, the bonding layer 37 at the bottom of the stainless steel ring body 32 can be attached and fixed on the surface of the precision aluminum casting 47 to seal the upper end of the punching position, and the magnetic attraction ring 31 moves rapidly along with impact of high-pressure water, so that the force of the stainless steel ring body 32 falling on the surface of the precision aluminum casting 47 is large, the stainless steel ring body 32 can be stably bonded on the surface of the precision aluminum casting 47 through the bonding layer 37, when the periphery of the hole on the surface of the precision aluminum casting 47 is blocked, the bottom of the hole can be cleaned through water tightness, and the liquid brazing filler metal in the injection hole can also be injected into the high-pressure type injection hole, when the pressure of the injected liquid brazing filler metal reaches a certain degree, the drill rod 9 is pushed to ascend integrally and the upper part of the telescopic cavity 11 is compressed, so that the liquid brazing filler metal is easily injected into the gap inside the precision aluminum casting 47 when being pressurized, and the liquid brazing filler metal is completely injected into and filled in the hole through a high-pressure injection mode from the bottom of the hole, and the closed brazing is completed.
Claims (10)
1. A multistation welding equipment for accurate aluminum casting, including welding equipment shell (1), its characterized in that: the lower end of the welding equipment shell (1) is provided with a joint plate (2), the welding equipment shell (1) is of a cylindrical shell structure, the lower end of the welding equipment shell (1) is provided with an opening, a lifting base plate (14) is movably arranged in the welding equipment shell (1), the lower end of the lifting base plate (14) is fixedly welded with a transmission unit (15), the end part of the transmission unit (15) is in transmission connection with a drill rod (9), the lower end of the drill rod (9) corresponds to an extending hole (10) in the surface of the joint plate (2), the welding equipment shell (1) is provided with an air pressure driving assembly for pushing the drill rod (9) to move out of the extending hole (10), the drill rod (9) is provided with a conveying channel (20) for cleaning water to enter and exit and liquid solder to discharge, the conveying channel (20) is arranged in the drill rod (9) and penetrates through the bottom of the drill rod (9), one side of the welding equipment shell (1) is provided with a liquid brazing filler metal injection assembly and a cleaning water inlet and outlet assembly, and the bottom of the welding equipment shell (1) is provided with an inclination adjusting assembly.
2. A multi-station welding apparatus for precision aluminum castings according to claim 1, wherein: the pneumatic drive assembly is including fixing pressurization unit (3) at welding equipment shell (1) upper end lateral surface, lift base plate (14) and the upper end of welding equipment shell (1) are inside to form flexible cavity (11) with pressurization unit (3) intercommunication between, the outer lane department of lift base plate (14) is fixed and is provided with rubber seal (13), the activity laminating of outer lane department of rubber seal (13) is at the inner wall of welding equipment shell (1), and rubber seal (13) are sealed between lift base plate (14) outer lane and welding equipment shell (1) inner wall, the fixed welding in top of flexible cavity (11) has high strength spring (12) that the lift base plate (14) were held in the drawing.
3. A multi-station welding apparatus for precision aluminum castings according to claim 1, wherein: the cleaning water inlet and outlet assembly comprises a conveying mechanism (21) fixed on the surface of the attaching plate (2) and a water tank (25) arranged on the surface of the attaching plate (2), the water tank (25) is communicated with the conveying mechanism (21) through a second conveying pipeline (23), and the conveying mechanism (21) is connected with the conveying channel (20) through a switching assembly.
4. A multi-station welding apparatus for precision aluminum castings according to claim 3, wherein: the switching assembly comprises a conveying unit (16) and a guide unit (17), the conveying unit (16) comprises two groups of limiting nuts (29) which are connected to the outer ring of the upper end of a drill rod (9) in a threaded fit mode, a rotating ring (28) movably sleeved on the outer ring of the drill rod (9) is arranged between the two groups of limiting nuts (29), the rotating ring (28) and the outer ring of the drill rod (9) are sealed, an annular chamber (27) is arranged inside the rotating ring (28), conveying connecting holes (26) are formed in the drill rod (9), the conveying connecting holes (26) are communicated between the annular chamber (27) and a conveying channel (20), the conveying connecting holes (26) are arranged in an annular array mode to form a plurality of groups, the guide unit (17) comprises a conveying pipeline (19) fixed on one side of the rotating ring (28), and one end of the conveying pipeline (19) is communicated with the annular chamber (27), the other end communicates conveying mechanism (21), be provided with on welding equipment shell (1) inner wall and supply direction unit (17) activity to pass through accomodate groove (38), accomodate groove (38) and distribute along the direction of height of welding equipment shell (1), accomodate guide ring (39) that distribute about being provided with the multiunit in groove (38), pipeline (19) pass through from the middle part of multiunit guide ring (39), and the side of multiunit guide ring (39) is the fixed welding all has guide ring connecting plate (41), passes through connecting spring (40) fixed welding between upper and lower adjacent guide ring connecting plate (41).
5. The multi-station welding apparatus for precision aluminum castings according to claim 4, wherein: the liquid brazing filler metal injection assembly comprises a liquid brazing filler metal storage box (24) arranged on the surface of the attaching plate (2), the liquid brazing filler metal storage box (24) is communicated with the conveying mechanism (21) through a first conveying pipeline (22), electromagnetic valves are arranged on the first conveying pipeline (22) and the second conveying pipeline (23), and a lower plugging assembly and a sealing unit (18) are arranged on the drill rod (9).
6. A multi-station welding apparatus for precision aluminum castings according to claim 5, wherein: the sealing unit (18) comprises a stainless steel ring body (32) movably sleeved at the outer ring of the drill rod (9), an adhesive layer (37) is fixedly arranged on the lower surface of the stainless steel ring body (32), an extension spring (30) is fixedly welded on the inner wall of the upper end of the conveying channel (20), a magnetic attraction ring (31) is fixedly welded at the bottom of the extension spring (30), the outer ring of the magnetic attraction ring (31) is movably attached to the inner wall of the conveying channel (20), the magnetic attraction ring (31) and the stainless steel ring body (32) are attracted and fixed, a storage groove (33) for storing a release agent is arranged inside one side of the stainless steel ring body (32), a spring (35) is fixedly welded at the end of the storage groove (33), a sealing plate (34) is arranged at the end of the spring (35), and an extension groove (36) penetrating through the inner ring of the storage groove (33) is arranged on one side, close to the inner ring of the stainless steel ring body (32), of the storage groove (33), the sealing plate (34) penetrates out of the extending groove (36) in a movable mode, the length of the sealing plate (34) is larger than the diameter of the hole in the stainless steel ring body (32), the hole in the stainless steel ring body (32) is a rectangular hole, and the sealing plate (34) is of a rectangular plate-shaped structure matched with the rectangular hole.
7. The multi-station welding apparatus for precision aluminum castings according to claim 6, wherein: the lower plugging assembly comprises an outer ring groove (44) arranged at the outer ring of the lower end of the drill rod (9), an elastic sleeve (43) is movably arranged in the outer ring groove (44), a side surface pressurizing hole (42) communicated with the interior of the conveying channel (20) is formed in the bottom of the outer ring groove (44), the upper end of the elastic sleeve (43) is fixedly welded in the interior of the upper end of the outer ring groove (44), the outer ring of the elastic sleeve (43) is parallel to the outer ring of the drill rod (9), and the elastic sleeve (43) is of a ring structure.
8. A multi-station welding apparatus for precision aluminum castings according to claim 2, wherein: the inclination adjusting component comprises a peripheral limiting ring (7) fixedly arranged at the outer ring of the bottom of the welding equipment shell (1), the lower surface of the peripheral limiting ring (7) is fixedly provided with air bags (8), the bottom of each air bag (8) is fixed with the upper surface of the binding plate (2), the air bags (8) are distributed in a plurality of groups along the track of the peripheral limiting ring (7) in a circular array, a connecting rod body (45) is arranged between the lower surface of the inner ring of the peripheral limiting ring (7) and the upper surface of the attaching plate (2), the upper end of the connecting rod body (45) is movably hinged on the hinge seat on the lower surface of the peripheral limiting ring (7), the lower end of the connecting rod body (45) is movably hinged on the hinge plate on the upper surface of the attaching plate (2), the connecting rod body (45) is distributed with a plurality of groups between the peripheral limiting ring (7) and the attaching plate (2) in a circular array shape.
9. A multi-station welding apparatus for precision aluminum castings according to claim 8, wherein: one side of pressurization unit (3) is provided with pressurization trunk line (4), the lower extreme intercommunication of pressurization trunk line (4) has annular hollow pipeline (5), the outer lane position at welding equipment shell (1) that annular hollow pipeline (5) are the ring structure and distribute, the lower extreme intercommunication of annular hollow pipeline (5) has pressurization branch pipeline (6), pressurization branch pipeline (6) are provided with the multiunit, and gasbag (8) that the lower extreme intercommunication of multiunit pressurization branch pipeline (6) corresponds the position.
10. A multi-station welding apparatus for precision aluminum castings according to claim 9, wherein: the diameter of the extending hole (10) is consistent with that of an inner ring of the welding equipment shell (1), and the diameter of the drill rod (9) is one fifth of that of the extending hole (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210069080.0A CN114083077A (en) | 2022-01-21 | 2022-01-21 | Multi-station welding equipment for precise aluminum castings |
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| CN202210069080.0A CN114083077A (en) | 2022-01-21 | 2022-01-21 | Multi-station welding equipment for precise aluminum castings |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114871781A (en) * | 2022-05-18 | 2022-08-09 | 淮南市泰能电力工程有限公司 | Pressurized water reactor device with nickel-based alloy ultrasonic argon arc welding seam |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114871781A (en) * | 2022-05-18 | 2022-08-09 | 淮南市泰能电力工程有限公司 | Pressurized water reactor device with nickel-based alloy ultrasonic argon arc welding seam |
| CN114871781B (en) * | 2022-05-18 | 2024-02-27 | 淮南市泰能电力工程有限公司 | Pressurized water reactor device with nickel-based alloy ultrasonic argon arc welding seam |
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