A vacuum gas phase soldering equipment

Abstract

The present invention relates to the field of vapor phase welding technology, and specifically to a vacuum vapor phase welding device, comprising a liquid storage chamber, wherein at least one side of the liquid storage chamber is provided with a vacuum chamber, a side of the vacuum chamber away from the liquid storage chamber is provided with a tray conveying mechanism for conveying a tray, and a lifting mechanism for driving the tray to move up and down is provided in the vacuum chamber; a workpiece to be processed is placed on the tray, and the tray conveying mechanism and the lifting mechanism are used to move the tray into the vacuum chamber, and a vapor phase liquid spraying mechanism is used to spray vapor phase liquid on the workpiece on the tray, and then the vacuum chamber is evacuated by a vacuum pump, and at the same time, a bottom plate is driven to move by a sprocket and a chain. When evacuating, the bottom plate moves horizontally and the vacuum chamber is closed to form a negative pressure environment to meet the requirements of products with a height of 180 mm.

Description

Technical Field

[0001] The present invention relates to the technical field of vapor phase welding, in particular to a vacuum vapor phase welding device. Background Art

[0002] Vapor phase welding is a technology that uses high-temperature gas generated by the evaporation of vapor phase liquid to heat the workpiece for welding. The core step of the welding process is to heat the vapor phase liquid to a vaporized state, so that the steam can conduct heat to the workpiece, heating the workpiece and completing the workpiece welding.

[0003] With the increasing integration of electronic devices, the number of PCB layers and the height of modules (such as specialized power modules, RF modules, and power modules) have increased significantly. However, existing vapor phase soldering equipment is limited by chamber height (typically ≤100mm) and vertical temperature uniformity. This can lead to pressure damage to components when soldering tall workpieces due to insufficient space, and uneven vapor convection can cause soldering defects. Furthermore, existing equipment can only solder relatively small workpieces, making it difficult to meet the industrial demand for large, high-density workpieces. Summary of the Invention

[0004] To address the challenges of existing technologies, the present invention provides a vacuum vapor welding device. Through its scalable chamber height design and adaptive pressure-elevation mechanism, it achieves stable welding of large workpieces, particularly suited to the processing requirements of ultra-high and large workpieces. If necessary, dual vacuum chambers can be used to coordinate operations to enhance welding efficiency.

[0005] The technical solution adopted by the present invention to solve its technical problems is a vacuum vapor welding device, comprising a liquid storage chamber, a vacuum chamber being provided on at least one side of the liquid storage chamber, a tray conveyor for transporting trays being provided on the side of the vacuum chamber away from the liquid storage chamber, a lifting mechanism for driving the tray to move up and down being provided in the vacuum chamber, a vacuum bottom plate translation mechanism and a vapor liquid spraying mechanism for spraying vapor liquid onto the tray being provided at the bottom of the vacuum chamber, a vacuum pump being provided on the outside of the vacuum chamber and being connected to a vacuum condenser, and the vacuum condenser being connected to a refrigerator through a pipeline.

[0006] Specifically, a vacuum chamber is provided on one side of the liquid storage chamber, and heating plates are installed on the sides of the vacuum chamber and the liquid storage chamber. The vacuum bottom plate translation mechanism includes a bottom plate for sealing the bottom of the vacuum chamber, and a chain for driving the bottom plate to move horizontally. A sprocket is rotatably connected to the driving chain in the liquid storage chamber, and the sprocket is driven to rotate by a motor.

[0007] Specifically, vacuum chambers are provided on both sides of the liquid storage chamber, the vacuum chambers are connected to the tops of both sides of the liquid storage chamber, a heating plate is provided on the inner top of the liquid storage chamber, the vacuum chamber opens upward, and the gas-phase liquid spraying mechanism is arranged above the connection between the vacuum chamber and the liquid storage chamber.

[0008] Specifically, the vacuum bottom plate translation mechanism includes a translation support plate, both sides of the translation support plate are connected to a first sealing plate, the middle of the translation support plate is connected to a second sealing plate, and both sides of the vacuum chamber are provided with symmetrically arranged first pneumatic telescopic rods, and the output end of the first pneumatic telescopic rod is fixedly connected to one side of the translation support plate.

[0009] Specifically, it also includes a frame, and the vacuum chamber, tray conveying mechanism, lifting mechanism, vacuum pump, vacuum condenser and refrigerator are all connected to the frame.

[0010] Specifically, the lifting mechanism includes a cover plate horizontally arranged above the vacuum chamber, and the cover plate closes the top of the vacuum chamber after being moved downward. A second pneumatic telescopic rod vertically arranged is fixedly connected to the upper surface of the cover plate, and a support plate is fixedly connected to the fixed end of the first pneumatic telescopic rod, and both ends of the support plate are fixedly connected to the frame;

[0011] The lifting mechanism also includes an electric telescopic rod vertically installed on the upper surface of the cover plate, the output end of the electric telescopic rod passes through the cover plate and is fixedly connected to a horizontally arranged movable plate, two groups of symmetrically arranged lifting plates are provided below both sides of the movable plate, both ends of the lifting plate are fixedly connected to the movable plate through a vertically arranged positioning cylinder, the upper and lower ends of the positioning cylinder respectively pass through the movable plate and the lifting plate, a vertically arranged positioning rod is slidably connected in the positioning cylinder, and the upper end of the positioning rod is fixedly connected to the lower surface of the cover plate.

[0012] Specifically, it includes a switching valve connected to the air source, the switching valve is connected between the two groups of second pneumatic telescopic rods through a pipeline, the first pneumatic telescopic rod is connected to the adjacent second pneumatic telescopic rod through a pipeline, the first pneumatic telescopic rod and the second pneumatic telescopic rod are both provided with a damping exhaust hole, and the inner side of the vacuum chamber is installed with a magnet for magnetically attracting the first sealing plate;

[0013] After the lifting mechanism in the vacuum chamber descends, the first sealing plate moves toward the liquid storage chamber and is stuck on the upper part of the lifting plate.

[0014] Specifically, the spray mechanism includes several groups of nozzles arranged inside the vacuum chamber, the nozzles spray downward, two groups of horizontally arranged liquid storage cylinders are fixedly connected to the upper outer side of the liquid storage chamber, a vertically arranged piston plate is sealingly and slidably connected inside the liquid storage cylinder, an L-shaped drive rod is fixedly connected to one side of the piston plate, the drive rod passes through the liquid storage cylinder and the vacuum chamber and is sealingly and slidably connected to the liquid storage cylinder, and one end of the drive rod is fixedly connected to the upper surface of the first sealing plate;

[0015] A one-way liquid inlet valve and a one-way liquid outlet valve are provided above the end of the liquid storage cylinder away from the vacuum chamber. The one-way liquid inlet valve is connected to the gas phase liquid storage tank through a pipeline. The gas phase liquid storage tank is connected to the vacuum condenser through a pipeline. The one-way liquid outlet valve is connected to several groups of nozzles through pipelines.

[0016] Specifically, the tray conveying mechanism includes a horizontally arranged conveying track, an electric slider is slidably connected to the conveying track, and a horizontally arranged feeding plate is fixedly connected to the side of the electric slider close to the vacuum chamber.

[0017] Beneficial effects of the present invention:

[0018] The vacuum vapor welding equipment described in the present invention places the workpiece to be processed on a pallet, which is moved into a vacuum chamber by a pallet conveying mechanism and a lifting mechanism. A vapor liquid spraying mechanism sprays vapor liquid on the workpiece on the pallet, and then a vacuum pump is used to evacuate the vacuum chamber. A sprocket and a chain simultaneously drive the base plate to move. During vacuuming, the base plate moves horizontally and the vacuum chamber closes, forming a negative pressure environment to meet the requirements of products with a height of no more than 180 mm.

[0019] The vacuum vapor phase welding equipment described in the present invention places a workpiece to be processed on a tray, and relies on a tray conveying mechanism, a lifting mechanism, and a vacuum bottom plate translation mechanism to move the tray into a liquid storage chamber. The vacuum bottom plate translation mechanism seals both ends of the liquid storage chamber to ensure the sealing of the liquid storage chamber. The liquid storage chamber is evacuated by a vacuum pump, and heated and welded by a heating plate to ensure the welding effect. After welding is completed, the vacuum bottom plate translation mechanism moves the tray to the lifting mechanism, and the lifting mechanism moves the tray to the tray conveying mechanism, and the tray is removed by the tray conveying mechanism, thereby facilitating the welding of larger workpieces and improving the welding efficiency of the welding equipment.

[0020] The vacuum vapor welding equipment of the present invention switches the gas supply of the second pneumatic telescopic rods on the left and right sides through a switching valve, and can alternately perform welding work on the workpieces on both sides, thereby improving the efficiency of workpiece welding.

[0021] The vacuum vapor welding equipment described in the present invention has the following advantages: when the tray is moved to the translation support plate, gas enters the first gas pressure telescopic rod through the pipeline, and drives the first sealing plate and the translation support plate to move. When the first sealing plate moves toward the liquid storage chamber, it drives the driving rod to move, and relies on the piston plate to squeeze the liquid storage cylinder, so that the gas phase liquid in the liquid storage cylinder is transported to the nozzle through the one-way liquid outlet valve and the pipeline. The nozzle relies on the gas phase liquid to spray the gas phase liquid on the workpiece on the tray, so that the gas phase liquid is automatically sprayed when the tray moves into the liquid storage chamber, thereby improving the spraying convenience of the gas phase liquid;

[0022] The vacuum vapor welding equipment described in the present invention vaporizes the vapor phase liquid on the workpiece during the heat welding process. After the heating work is completed, the vaporized vapor phase liquid is condensed and recovered by a vacuum condenser, and the recovered vapor phase liquid is transported to a liquid storage tank. In this way, the vapor phase liquid is recycled without manual liquid addition, thereby ensuring the welding effect of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below with reference to the accompanying drawings and examples.

[0024] Figure 1 is an axonometric view of an embodiment of the present invention;

[0025] Figure 2 is a schematic cross-sectional view of a vacuum chamber of the present invention;

[0026] Figure 3 It is an axonometric view of another embodiment of the present invention;

[0027] Figure 4 for Figure 3 A magnified view of area A;

[0028] Figure 5 Schematic diagram of the cross-sectional structure of the vacuum chamber and the liquid storage chamber of the present invention;

[0029] Figure 6 for Figure 5 A magnified view of area B;

[0030] Figure 7 for Figure 5 Magnified view of area C;

[0031] Figure 8 for Figure 5 Magnified view of area D;

[0032] Figure 9 This is a schematic diagram of the structure of the feeding plate after movement of the present invention;

[0033] In the figure: 1. Vacuum pump; 2. Vacuum condenser; 3. Refrigeration machine; 4. Liquid storage chamber; 5. Vacuum chamber; 6. Translation support plate; 7. First closing plate; 8. Second closing plate; 9. First pneumatic telescopic rod; 10. Frame; 11. Cover plate; 12. Second pneumatic telescopic rod; 13. Support plate; 14. Electric telescopic rod; 15. Moving plate; 16. Lifting plate; 17. Positioning cylinder; 18. Positioning rod; 19. Switching valve; 20. Magnet; 21. Nozzle; 22. Liquid storage cylinder; 23. Piston plate; 24. Drive rod; 25. One-way liquid inlet valve; 26. One-way liquid outlet valve; 27. Liquid storage tank; 28. Conveying track; 29. Electric slider; 30. Feeding plate; 31. Heating plate; 32. Bottom plate; 33. Chain; 34. Sprocket. DETAILED DESCRIPTION

[0034] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0035] Example 1, as Figure 1 、 Figure 2 As shown, a vacuum vapor welding device described in the present invention includes a liquid storage chamber 4, a vacuum chamber 5 is provided on at least one side of the liquid storage chamber 4, and a tray conveyor for transporting trays is provided on the side of the vacuum chamber 5 away from the liquid storage chamber 4. A lifting mechanism for driving the tray to move up and down is provided in the vacuum chamber 5, a vacuum bottom plate translation mechanism and a vapor liquid spraying mechanism for spraying vapor liquid onto the tray are provided at the bottom of the vacuum chamber 5, a vacuum pump 1 is provided on the outside of the vacuum chamber 5 and is connected to a vacuum condenser 2, and the vacuum condenser 2 is connected to the refrigerator 3 through a pipeline.

[0036] During use, the workpiece to be processed is placed on the pallet, and the pallet is moved into the vacuum chamber 5 by means of the pallet conveying mechanism and the lifting mechanism. The workpiece on the pallet is sprayed with gaseous liquid by means of the gaseous liquid spraying mechanism, and then the vacuum chamber 5 is evacuated by means of the vacuum pump 1. At the same time, the vacuum chamber 5 is sealed by the vacuum bottom plate translation mechanism to form a negative pressure environment to meet the needs of products with a height of no more than 180 mm, and they are welded to improve the convenience of welding the workpiece.

[0037] like Figure 1 、 Figure 2 As shown, the present invention also includes that a vacuum chamber 5 is provided on one side of the liquid storage chamber 4, and heating plates 31 are installed on the sides of the vacuum chamber 5 and the liquid storage chamber 4. The vacuum bottom plate translation mechanism includes a bottom plate 32 for sealing the bottom of the vacuum chamber 5, and a chain 33 for driving the bottom plate 32 to move horizontally. A sprocket 34 is rotatably connected to the liquid storage chamber 4 to drive the chain 33 to rotate, and the sprocket 34 is driven to rotate by a motor.

[0038] During use, after the lifting mechanism moves the tray into the vacuum chamber 5, the vapor-phase liquid spraying mechanism sprays the workpiece on the tray with vapor-phase liquid, and then the vacuum chamber 5 is evacuated by the vacuum pump 1. At the same time, the sprocket 34 and the chain 33 drive the bottom plate 32 to move. During the evacuation, the bottom plate 32 moves horizontally and the vacuum chamber 5 is closed, forming a negative pressure environment. The bottom plate 32 is then heated and welded by the heating plate 31 in the vacuum chamber to ensure the welding effect. After the welding is completed, the bottom plate 32 is driven to move and no longer closes the bottom of the vacuum chamber 5. The lifting mechanism moves the tray to the tray conveying mechanism, and the tray is removed by the tray conveying mechanism. This facilitates the welding of larger workpieces and improves the welding efficiency of the welding equipment. It should be noted that the technical solution for driving the movement of the bottom plate 32 of the present invention is not limited to using components such as the chain 33 and the sprocket 34. The bottom plate 32 can also be directly driven to move horizontally by installing a cylinder.

[0039] When the first embodiment of the present invention is in use, the workpiece to be processed is placed on a pallet, and the pallet is moved into the vacuum chamber 5 by means of a pallet conveying mechanism and a lifting mechanism. After the lifting mechanism moves the pallet into the vacuum chamber 5, the gas-phase liquid spraying mechanism sprays the workpiece on the pallet with gas-phase liquid, and then the vacuum chamber 5 is evacuated by the vacuum pump 1, and at the same time, the sprocket 34 and the chain 33 drive the bottom plate 32 to move. When evacuating, the bottom plate 32 moves horizontally and the vacuum chamber 5 is closed to form a negative pressure environment to meet the needs of products with a height of 180 mm. Then, the heating plate 31 in the vacuum chamber 5 is used to heat and weld it to ensure the welding effect. After welding is completed, the bottom plate 32 is driven to move and no longer closes the bottom of the vacuum chamber 5, and the pallet is moved to the pallet conveying mechanism by the lifting mechanism, and the pallet is removed by the pallet conveying mechanism, so as to facilitate welding of larger workpieces and improve the welding efficiency of the welding equipment.

[0040] Example 2, as Figure 3 、 Figure 4 As shown, a vacuum vapor welding device includes a liquid storage chamber 4, a vacuum chamber 5 is provided on at least one side of the liquid storage chamber 4, a tray conveyor for transporting trays is provided on the side of the vacuum chamber 5 away from the liquid storage chamber 4, a lifting mechanism for driving the tray to move up and down is provided in the vacuum chamber 5, a vacuum bottom plate translation mechanism and a vapor liquid spraying mechanism for spraying vapor liquid onto the tray are provided at the bottom of the vacuum chamber 5, a vacuum pump 1 is provided on the outside of the vacuum chamber 5 and is connected to a vacuum condenser 2, and the vacuum condenser 2 is connected to a refrigerator 3 through a pipeline;

[0041] A vacuum chamber 5 is provided on both sides of the liquid storage chamber 4. The vacuum chamber 5 is connected to the top of both sides of the liquid storage chamber 4. A heating plate 31 is provided on the inner top of the liquid storage chamber 4. The vacuum chamber 5 opens upward, and the gas-phase liquid spraying mechanism is arranged above the connection between the vacuum chamber 5 and the liquid storage chamber 4.

[0042] During use, the lifting mechanism can be used to drive the tray down to the vacuum bottom plate translation mechanism, and the vacuum bottom plate translation mechanism can drive the tray to move into the liquid storage chamber 4. The vacuum bottom plate translation mechanism is used to seal the two ends of the liquid storage chamber 4 to ensure the sealing of the liquid storage chamber 4. At the same time, the vacuum pump 1 is used to evacuate the liquid storage chamber 4, and then the heating plate 31 in the liquid storage chamber 4 is used to heat and weld it to ensure the welding effect. During the heating and welding process, the gas phase liquid on the workpiece is vaporized. After the heating is completed, the vaporized gas phase liquid is condensed and recovered by the vacuum condenser 2, thereby ensuring the welding effect of the workpiece and facilitating the recovery of the gas phase liquid.

[0043] It should be noted that the vacuum pump 1 and the vacuum condenser 2 of the present invention are connected to the interior of the liquid storage chamber 4 through pipelines.

[0044] In order to improve the welding efficiency of the workpiece, for example, Figure 3 、 Figure 4 、 Figure 6 、 Figure 7 、 Figure 8 As shown, the present invention also includes that the translation mechanism of the vacuum bottom plate 32 includes a translation support plate 6, both sides of the translation support plate 6 are connected to a first sealing plate 7, the middle of the translation support plate 6 is connected to a second sealing plate 8, and both sides of the vacuum chamber 5 are provided with symmetrically arranged first pneumatic telescopic rods 9, and the output end of the first pneumatic telescopic rod 9 is fixedly connected to one side of the translation support plate 6.

[0045] During use, the workpiece is placed on a set of trays, which are then transported to the lifting mechanism in the vacuum chamber 5 by the tray conveying mechanism. The lifting mechanism is then driven to move the tray downward so that the tray is located above the translation tray 6. The translation tray 6 is then driven synchronously by the first pneumatic telescopic rod 9 so that the tray is located in the liquid storage chamber 4. At the same time, the first sealing plate 7 and the second sealing plate 8 on both sides of the tray are used to seal the two ends of the liquid storage chamber 4 to ensure the sealing of the liquid storage chamber 4. The liquid storage chamber 4 is then heated by the heating plate 31 in the liquid storage chamber 4 to complete the welding work.

[0046] While one side of the translation pallet 6 is pushed into the liquid storage chamber 4, the other side of the translation pallet 6 is pushed out of the liquid storage chamber 4 and enters the vacuum chamber 5. At this time, the pallet can be transported by the pallet conveying mechanism and the lifting mechanism corresponding to the group of vacuum chambers 5; after the pallet entering the vacuum chamber 5 is conveyed to the translation pallet 6, the pallet on the translation pallet 6 can be conveyed to the liquid storage chamber 4 by relying on the corresponding first pneumatic telescopic rod 9, and the workpiece with completed welding in the liquid storage chamber 4 can be moved out of the liquid storage chamber 4; after the workpiece with completed welding is moved out of the liquid storage chamber 4 by the translation pallet 6, it can be lifted by the lifting mechanism and lifted out of the vacuum chamber 5 by the lifting mechanism, and then the pallet is placed on the pallet conveying mechanism and moved out by the pallet conveying mechanism.

[0047] For example, Figure 1 、 Figure 3 As shown, the present invention also includes a frame 10 , and the vacuum chamber 5 , the tray conveying mechanism, the lifting mechanism, the vacuum pump 1 , the vacuum condenser 2 and the refrigerator 3 are all connected to the frame 10 .

[0048] When in use, the frame 10 can ensure the stability of the vacuum chamber, the tray conveying mechanism, the lifting mechanism, the vacuum pump 1 , the vacuum condenser 2 and the refrigerator 3 .

[0049] In order to facilitate the transport of the tray into the liquid storage chamber 4, for example, Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 As shown, the present invention also includes that the lifting mechanism includes a cover plate 11 horizontally arranged above the vacuum chamber 5, and the cover plate 11 closes the top of the vacuum chamber 5 after moving down. The upper surface of the cover plate 11 is fixedly connected to a second pneumatic telescopic rod 12 vertically arranged, and the fixed end of the first pneumatic telescopic rod 9 is fixedly connected to a support plate 13, and both ends of the support plate 13 are fixedly connected to the frame 10;

[0050] The lifting mechanism also includes an electric telescopic rod 14 vertically installed on the upper surface of the cover 11. The output end of the electric telescopic rod 14 passes through the cover 11 and is fixedly connected to a horizontally arranged movable plate 15. Two groups of symmetrically arranged lifting plates 16 are provided below both sides of the movable plate 15. Both ends of the lifting plate 16 are fixedly connected to the movable plate 15 through a vertically arranged positioning tube 17. The upper and lower ends of the positioning tube 17 respectively pass through the movable plate 15 and the lifting plate 16. A vertically arranged positioning rod 18 is slidably connected in the positioning tube 17. The upper end of the positioning rod 18 is fixedly connected to the lower surface of the cover 11.

[0051] When in use, the workpiece to be processed is placed on the pallet, and the pallet is transported by the pallet conveying mechanism. At the same time, the second pneumatic telescopic rod 12 drives the cover plate 11, the electric telescopic rod 14, the movable plate 15 and the lifting plate 16 to move up synchronously. When the pallet is transported to a certain position, the pallet is located above the lifting plate 16, and the electric telescopic rod 14 drives the movable plate 15 and the lifting plate 16 to move up. After the lifting plate 16 moves up, it contacts the lower part of the pallet and drives the pallet to move up, so that the pallet is separated from the pallet conveying mechanism, and then drives the pallet conveying mechanism to reset and move. When the pallet conveying mechanism resets to the initial state, the electric telescopic rod 14 is driven to drive the movable plate 15 and the lifting plate 16 to move down. When the lifting plate 16 moves down, the pallet is driven to move down synchronously. At the same time, the stability between the lifting plate 16 and the movable plate 15 can be ensured by the action of the positioning rod 18 and the positioning cylinder 17.

[0052] When the lifting plate 16 moves down to a certain position, the second pneumatic telescopic rod 12 is driven to move down and the electric telescopic rod 14, the movable plate 15 and the lifting plate 16 are further driven down, so as to facilitate the movement of the pallet onto the translation support plate 6, and then the first pneumatic telescopic rod 9 is driven to drive the translation support plate 6 to move into the liquid storage chamber 4, so as to facilitate the heating and welding of the workpiece on the pallet;

[0053] After the welded workpiece moves into the vacuum chamber 5 along with the translation pallet 6, the pallet is located above the lifting plate 16. Then the lifting mechanism and the lifting mechanism rise to move the pallet out of the vacuum chamber 5. After the pallet conveying mechanism moves to the bottom of the lifting plate 16, the electric telescopic rod 14 drives the lifting plate 16 to descend, places the pallet on the pallet conveying mechanism, and moves the pallet out through the pallet conveying mechanism.

[0054] In order to alternately perform welding work on both sides of the workpiece, thereby improving the efficiency of workpiece welding, for example, Figure 4 、 Figure 6 、 Figure 7 As shown, the present invention also includes a switching valve 19 for connecting to the air source, the switching valve 19 is connected between the two groups of second pneumatic telescopic rods 12 through a pipeline, the first pneumatic telescopic rod 9 is connected to the adjacent second pneumatic telescopic rod 12 through a pipeline, the first pneumatic telescopic rod 9 and the first pneumatic telescopic rod 9 are both provided with damping exhaust holes, and the inner side of the vacuum chamber 5 is installed with a magnet 20 for magnetically adsorbing the first sealing plate 7;

[0055] After the lifting mechanism in the vacuum chamber 5 descends, the first sealing plate 7 moves toward the liquid storage chamber 4 and is stuck on the upper part of the lifting plate 16 .

[0056] When in use, after the vacuum chamber 5 on one side is transported to the lifting plate 16 by the tray conveying mechanism and the lifting mechanism, the loading of the tray on the vacuum chamber 5 on the side is completed; thereafter, air can be supplied to the second pneumatic telescopic rod 12 above the vacuum chamber 5 on the side through the switching valve 19, thereby driving the lifting plate 16 to descend and placing the tray on the lifting plate 16 on the translation support plate 6; when the second pneumatic telescopic rod 12 is extended to the limit state, the magnet 20 in the vacuum chamber 5 on the side can no longer adsorb and fix the first sealing plate 7, thereby driving the first pneumatic telescopic rod 9 to extend and driving the translation support plate 6 to transport the tray in the vacuum chamber 5 on the side to the liquid storage chamber 4 for heating and welding; after the air source is turned off, the vacuum chamber 5 on the other side adsorbs the first sealing plate 7 through the magnet 20, which can ensure the stability of the translation support plate 6, and since the first sealing plate 7 is stuck above the lifting plate 16, the second pneumatic telescopic rod 12 can be prevented from contracting and resetting;

[0057] Correspondingly, when the translation support plate 6 is pushed toward the vacuum chamber 5, the corresponding first pneumatic telescopic rod 9 is compressed and exhausted through the damping exhaust hole, thereby restoring the first pneumatic telescopic rod 9; after the translation support plate 6 is pushed to the vacuum chamber 5, the first sealing plate 7 no longer obstructs the lifting plate 16 and cooperates with the damping exhaust hole to exhaust air, allowing the second pneumatic telescopic rod 12 to rebound and return to its original position. Thereafter, the welded workpiece is sent out of the vacuum chamber 5 by the lifting mechanism and the tray conveying mechanism;

[0058] By switching the air supply to the left and right second pneumatic telescopic rods 12 via the switching valve 19 , the welding work on the workpieces on both sides can be performed alternately, thereby improving the efficiency of workpiece welding.

[0059] In order to improve the convenience of spraying the gas phase liquid, for example, Figure 3 、 Figure 4 、 Figure 6 、 Figure 7 、 Figure 8 As shown, the present invention also includes that the spray mechanism includes several groups of nozzles 21 arranged inside the vacuum chamber 5, and the nozzles 21 spray downward. Two groups of horizontally arranged liquid storage cylinders 22 are fixedly connected to the upper outer side of the liquid storage chamber 4. A vertically arranged piston plate 23 is sealed and slidably connected inside the liquid storage cylinder 22. An L-shaped drive rod 24 is fixedly connected to one side of the piston plate 23. The drive rod 24 passes through the liquid storage cylinder 22 and the vacuum chamber 5 and is sealed and slidably connected to the liquid storage cylinder 22. One end of the drive rod 24 is fixedly connected to the upper surface of the first sealing plate 7;

[0060] A one-way liquid inlet valve 25 and a one-way liquid outlet valve 26 are provided above the end of the liquid storage cylinder 22 away from the vacuum chamber 5. The one-way liquid inlet valve 25 is connected to the gas phase liquid storage tank 27 through a pipeline. The gas phase liquid storage tank 27 is connected to the vacuum condenser 2 through a pipeline. The one-way liquid outlet valve 26 is connected to several groups of nozzles 21 through pipelines.

[0061] During use, after the second pneumatic telescopic rod 12 moves down to a certain position, the pallet is moved onto the translation support plate 6. Then, the gas enters the first pneumatic telescopic rod 9 through the pipeline, and drives the first sealing plate 7 and the translation support plate 6 to move. When the first sealing plate 7 moves toward the liquid storage chamber 4, it drives the driving rod 24 to move, and relies on the piston plate 23 to squeeze the liquid storage cylinder 22, so that the gas phase liquid in the liquid storage cylinder 22 is transported to the nozzle 21 through the one-way liquid outlet valve 26 and the pipeline, and the gas phase liquid is sprayed on the workpiece on the pallet by the nozzle 21;

[0062] On the contrary, when the first sealing plate 7 moves away from the liquid storage chamber 4, the driving rod 24 is driven away from the liquid storage cylinder 22, thereby pumping the gas phase liquid into the liquid storage cylinder 22 through the movement of the piston plate 23;

[0063] During the heating and welding process, the gas phase liquid on the workpiece is vaporized. After the heating work is completed, the vaporized gas phase liquid is condensed and recovered by the vacuum condenser 2, and the recovered gas phase liquid is transported to the liquid storage tank 27, so that the gas phase liquid can be recycled without manual liquid addition, thereby ensuring the welding effect of the workpiece.

[0064] For example, Figure 3 、 Figure 4 As shown, the present invention also includes that the tray conveying mechanism includes a horizontally arranged conveying track 28, an electric slider 29 is slidably connected to the conveying track 28, and a horizontally arranged feeding plate 30 is fixedly connected to the side of the electric slider 29 close to the vacuum chamber.

[0065] When in use, the workpiece to be processed is placed on the pallet, and then the pallet is placed on the feed plate 30. The feed plate 30 is driven to move by the electric slider 29 and the conveying track 28, so as to facilitate moving the pallet to the top of the vacuum chamber 5 and improve the convenience of conveying the pallet.

[0066] When the second embodiment of the present invention is in use, the workpiece to be processed is placed on the tray, and then the tray is placed on the feeding plate 30 of the vacuum chamber 5 on one side, and the feeding plate 30 is driven to move by the electric slider 29 and the conveying track 28. At the same time, the cover plate 11, the electric telescopic rod 14, the movable plate 15 and the lifting plate 16 are driven to move upward synchronously by the second pneumatic telescopic rod 12. When the tray is transported to a certain position, the tray is located above the lifting plate 16, and the movable plate 15 and the lifting plate are driven by the electric telescopic rod 14. 16 moves up, and after the lifting plate 16 moves up, it contacts the lower part of the tray and drives the tray to move up, so that the tray is separated from the feeding plate 30, and then drives the feeding plate 30 to reset and move. When the feeding plate 30 resets and moves to the initial state, the electric telescopic rod 14 is driven to drive the moving plate 15 and the lifting plate 16 to move down. When the lifting plate 16 moves down, the tray is driven to move down synchronously. At the same time, the positioning rod 18 and the positioning cylinder 17 can ensure the stability between the lifting plate 16 and the moving plate 15, thereby completing the loading of the tray into the vacuum chamber 5 on this side;

[0067] By supplying air to the second pneumatic telescopic rod 12, the lifting plate 16 is driven to descend, and the tray on the lifting plate 16 is placed on the translation support plate 6. When the second pneumatic telescopic rod 12 is extended to the limit, the magnet 20 can no longer attract and fix the first sealing plate 7, thereby driving the first pneumatic telescopic rod 9 to extend and drive the translation support plate 6 to transport the tray in the vacuum chamber 5 on this side to the liquid storage chamber 4 for heating and welding;

[0068] When the first air pressure telescopic rod 9 moves, it drives the first sealing plate 7 and the translation support plate 6 to move. When the first sealing plate 7 moves toward the liquid storage chamber 4, it drives the driving rod 24 to move and relies on the piston plate 23 to squeeze the liquid storage cylinder 22, so that the gaseous liquid in the liquid storage cylinder 22 is transported to the nozzle 21 through the one-way liquid outlet valve 26 and the pipeline, and relies on the nozzle 21 to spray the gaseous liquid on the workpiece on the pallet. When the pallet moves into the liquid storage chamber 4, the first sealing plate 7 and the second sealing plate 8 on both sides of the pallet are used to seal the two ends of the liquid storage chamber 4 to ensure the sealing of the liquid storage chamber 4. At the same time, the vacuum pump 1 is used to evacuate the liquid storage chamber 4, and then the heating plate 31 in the liquid storage chamber 4 is used to heat and weld it to ensure the welding effect; during the heating and welding process, the gaseous liquid on the workpiece is vaporized. After the heating work is completed, the vaporized gaseous liquid is condensed and recovered by the vacuum condenser 2, and the recovered gaseous liquid is transported to the liquid storage tank 27, so that the gaseous liquid can be recycled without manual liquid addition;

[0069] When the workpiece is welded, the welded workpiece is moved into the vacuum chamber 5 along with the translation support plate 6, and the tray is located above the lifting plate 16. Then, the second pneumatic telescopic rod 12 and the electric telescopic rod 14 rise to move the tray out of the vacuum chamber 5. At the same time, after the feeding plate 30 moves to the bottom of the lifting plate 16, the electric telescopic rod 14 drives the lifting plate 16 to descend, placing the tray on the feeding plate 30, and then the tray is moved out through the feeding plate 30. This facilitates welding of larger workpieces and improves the welding efficiency of the welding equipment.

[0070] After the tray is transported to the lifting plate 16 by the tray conveying mechanism and the lifting mechanism on one side of the vacuum chamber 5, the loading of the tray on the vacuum chamber 5 on the side is completed; thereafter, the second pneumatic telescopic rod 12 above the vacuum chamber 5 on the side can be supplied with air through the switching valve 19, thereby driving the lifting plate 16 to descend and placing the tray on the lifting plate 16 on the translation support plate 6; when the second pneumatic telescopic rod 12 is extended to the limit state, the magnet 20 in the vacuum chamber 5 on the side can no longer adsorb and fix the first sealing plate 7, thereby driving the first pneumatic telescopic rod 9 to extend and driving the translation support plate 6 to transport the tray in the vacuum chamber 5 on the side to the liquid storage chamber 4 for heating and welding; after the air source is turned off, the vacuum chamber 5 on the other side adsorbs the first sealing plate 7 by the magnet 20, which can ensure the stability of the translation support plate 6, and since the first sealing plate 7 is stuck above the lifting plate 16, the second pneumatic telescopic rod 12 can be prevented from contracting and resetting;

[0071] Correspondingly, when the translation support plate 6 is pushed toward the vacuum chamber 5, the corresponding first pneumatic telescopic rod 9 is compressed and exhausted through the damping exhaust hole, thereby restoring the first pneumatic telescopic rod 9; after the translation support plate 6 is pushed to the vacuum chamber 5, the first sealing plate 7 no longer obstructs the lifting plate 16, and cooperates with the damping exhaust hole to exhaust air so that the second pneumatic telescopic rod 12 can rebound and return to its original position, and then the welded workpiece is sent out of the vacuum chamber 5 by the lifting mechanism and the tray conveying mechanism;

[0072] By switching the air supply to the left and right second pneumatic telescopic rods 12 via the switching valve 19 , the welding work on the workpieces on both sides can be performed alternately, thereby improving the efficiency of workpiece welding.

[0073] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vacuum vapor welding device, characterized in that: It comprises a liquid storage chamber (4), vacuum chambers (5) are provided on both sides of the liquid storage chamber (4), a tray conveying mechanism for conveying a tray is provided on the side of the vacuum chamber (5) away from the liquid storage chamber (4), a lifting mechanism for driving the tray to move up and down is provided in the vacuum chamber (5), a vacuum bottom plate translation mechanism and a gas phase liquid spraying mechanism for spraying gas phase liquid onto the tray are provided at the bottom of the vacuum chamber (5), a vacuum pump (1) and a vacuum condenser (2) are provided outside the vacuum chamber (5), and the vacuum condenser (2) is connected to the refrigerator (3) through a pipeline; The vacuum chamber (5) is connected to the tops of both sides of the liquid storage chamber (4), a heating plate (31) is provided on the inner top of the liquid storage chamber (4), the vacuum chamber (5) opens upward, and the gas phase liquid spraying mechanism is provided above the connection between the vacuum chamber (5) and the liquid storage chamber (4); The vacuum bottom plate translation mechanism includes a translation support plate (6), both sides of the translation support plate (6) are connected to a first sealing plate (7), the middle of the translation support plate (6) is connected to a second sealing plate (8), and both sides of the vacuum chamber (5) are provided with a symmetrically arranged first pneumatic telescopic rod (9), the output end of the first pneumatic telescopic rod (9) is fixedly connected to one side of the translation support plate (6); the tray is located above the translation support plate (6), and then the translation support plate (6) is driven to move synchronously by the first pneumatic telescopic rod (9), so that the tray is located in the liquid storage chamber (4), and at the same time, the first sealing plate (7) and the second sealing plate (8) on both sides of the tray are used to seal the two ends of the liquid storage chamber (4) to ensure the sealing inside the liquid storage chamber (4); while one side of the translation support plate (6) is pushed into the liquid storage chamber (4), the other side of the translation support plate (6) is pushed out of the liquid storage chamber (4) and enters the vacuum chamber (5).

2. The vacuum vapor welding equipment according to claim 1, characterized in that: It also includes a frame (10), and the vacuum chamber (5), the tray conveying mechanism, the lifting mechanism, the vacuum pump (1), the vacuum condenser (2), and the refrigerator (3) are all connected to the frame (10).

3. A vacuum vapor welding device according to claim 1 or 2, characterized in that: The lifting mechanism comprises a cover plate (11) horizontally arranged above the vacuum chamber (5), the cover plate (11) closes the top of the vacuum chamber (5) when it moves downward, the upper surface of the cover plate (11) is fixedly connected to a second pneumatic telescopic rod (12) vertically arranged, the fixed end of the first pneumatic telescopic rod (9) is fixedly connected to a support plate (13), and both ends of the support plate (13) are fixedly connected to the frame (10); The lifting mechanism further comprises an electric telescopic rod (14) vertically mounted on the upper surface of the cover plate (11); the output end of the electric telescopic rod (14) passes through the cover plate (11) and is fixedly connected to a horizontally arranged movable plate (15); two groups of symmetrically arranged lifting plates (16) are provided below both sides of the movable plate (15); both ends of the lifting plates (16) are fixedly connected to the movable plate (15) through vertically arranged positioning cylinders (17); the upper and lower ends of the positioning cylinder (17) pass through the movable plate (15) and the lifting plate (16) respectively; a vertically arranged positioning rod (18) is slidably connected in the positioning cylinder (17); the upper end of the positioning rod (18) is fixedly connected to the lower surface of the cover plate (11).

4. The vacuum vapor welding equipment according to claim 3, characterized in that: The invention comprises a switching valve (19) for connecting to an air source, wherein the switching valve (19) is connected between two groups of second pneumatic telescopic rods (12) through a pipeline, the first pneumatic telescopic rod (9) is connected to the adjacent second pneumatic telescopic rod (12) through a pipeline, the first pneumatic telescopic rod (9) and the first pneumatic telescopic rod (12) are both provided with a damping exhaust hole, and a magnet (20) for magnetically adsorbing the first sealing plate (7) is installed on the inner side of the vacuum chamber (5); After the lifting mechanism in the vacuum chamber (5) descends, the first sealing plate (7) moves toward the liquid storage chamber (4) and is stuck on the upper part of the lifting plate (16).

5. The vacuum vapor welding equipment according to claim 4, characterized in that: The spray mechanism comprises a plurality of nozzles (21) arranged inside the vacuum chamber (5), the nozzles (21) spray downward, two groups of horizontally arranged liquid storage cylinders (22) are fixedly connected to the upper outer side of the liquid storage chamber (4), a vertically arranged piston plate (23) is sealed and slidably connected inside the liquid storage cylinder (22), an L-shaped driving rod (24) is fixedly connected to one side of the piston plate (23), the driving rod (24) passes through the liquid storage cylinder (22) and the vacuum chamber (5) and is sealed and slidably connected to the liquid storage cylinder (22), and one end of the driving rod (24) is fixedly connected to the upper surface of the first sealing plate (7); A one-way liquid inlet valve (25) and a one-way liquid outlet valve (26) are provided above one end of the liquid storage cylinder (22) away from the vacuum chamber (5); the one-way liquid inlet valve (25) is connected to the gas phase liquid storage tank (27) through a pipeline; the gas phase liquid storage tank (27) is connected to the vacuum condenser (2) through a pipeline; and the one-way liquid outlet valve (26) is connected to a plurality of groups of nozzles (21) through pipelines.

6. The vacuum vapor welding equipment according to claim 5, characterized in that: The tray conveying mechanism comprises a horizontally arranged conveying track (28), an electric slider (29) is slidably connected in the conveying track (28), and a horizontally arranged feeding plate (30) is fixedly connected to the side of the electric slider (29) close to the vacuum chamber.

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