Vacuum welding device for metal composite blank

Abstract

The utility model discloses a metal composite blank vacuum welding device which comprises a bottom plate, a vacuum brazing furnace, cooling boxes, a switching mechanism, cooling mechanisms and a movable supporting mechanism, the vacuum brazing furnace is fixedly arranged in the middle of the bottom plate, the cooling boxes are symmetrically and fixedly arranged on the two sides of the bottom plate, and the cooling boxes are communicated with the two sides of the vacuum brazing furnace. Electric telescopic rods are fixedly arranged on the inner side of the cooling box in an up-down symmetrical mode, movable plates are fixedly arranged at the telescopic ends of the electric telescopic rods in a matched mode, sliding rails are fixedly arranged in the cooling box in an up-down symmetrical mode, sliding blocks are fixedly arranged on the movable plates in an up-down symmetrical mode, and sealing plates are fixedly arranged on the inner sides of the movable plates in a matched mode; the vacuum brazing furnace is fixedly communicated with a vacuum pump, a cooling mechanism is arranged on the outer side of the cooling box, and a movable supporting mechanism is arranged below the bottom plate. The movable plate is pushed to drive metal blanks to be alternately fed into the vacuum brazing furnace to be welded through reciprocating stretching and retracting of the electric telescopic rod, and the metal blanks return to the cooling box along with the movable plate to be subjected to air blowing cooling after being welded.

Description

Technical Field

[0001] The utility model relates to the technical field of metal processing, in particular to a vacuum welding device for metal composite blanks. Background Art

[0002] Vacuum welding of metal composite blanks is a welding technology performed in a vacuum environment. It is mainly used to weld two different metal materials together tightly to form a composite blank. This method can effectively avoid oxidation, carburization, decarburization, pollution and deterioration of the metal during the welding process, thereby ensuring the cleanliness and strength of the welded joint. Vacuum welding refers to a welding process performed in a vacuum environment, which aims to exclude oxygen and other gases from the welding area to create an oxygen-free environment, thereby achieving high-strength, high-quality welding connections. The core principle of vacuum welding is to place the weldment and welding materials in a vacuum chamber and extract the gas therein to reduce the content of harmful substances such as oxygen to an extremely low level. Due to the absence of oxygen in a vacuum environment, metals are not easily oxidized and melted at high temperatures, which effectively prevents oxidation and impurity contamination during the welding process;

[0003] The utility model with application number 202021968985.4 discloses a bimetallic composite blank vacuum welding device, in which the hollow block is driven to rotate on the outer wall of the bearing by the side rod, and the position of the threaded rod is changed by the characteristics of the thread, so that the bottom plate is pushed downward, and the bottom plate slides on the outer wall of the bracket by the sleeve block. The movement of the bottom plate will be more stable, making the support process simple and convenient to operate. It only needs to rotate the side rod to fix it, which can make it more stable when the vacuum brazing furnace works;

[0004] However, in the above-mentioned bimetallic composite blank vacuum welding device, it is necessary to wait for the workpiece to cool down after welding, which makes the waiting time long and easily affects the welding efficiency. In the above-mentioned bimetallic composite blank vacuum welding device, the side rods and the threaded rods are located below the bottom of the vacuum brazing furnace. When it is necessary to adjust the bottom plate lowering support, it is necessary to manually reach into the bottom of the vacuum brazing furnace, which makes the support adjustment inconvenient. Therefore, the utility model proposes a metal composite blank vacuum welding device to solve the problems existing in the prior art. Utility Model Content

[0005] In view of the above problems, the purpose of the utility model is to propose a vacuum welding device for metal composite blanks. The vacuum welding device for metal composite blanks drives a movable plate to be alternately sent into a vacuum brazing furnace for welding through the reciprocating extension and retraction of an electric telescopic rod, and returns the metal blanks to a cooling box with the movable plate for air blowing cooling after welding, thereby achieving alternating welding and cooling, effectively improving welding efficiency, and locking the support legs by inserting a card block into a card slot at a corresponding position, so as to facilitate and quickly unfold the support.

[0006] To achieve the purpose of the utility model, the utility model is implemented through the following technical solutions: a metal composite blank vacuum welding device, comprising a base plate, a vacuum brazing furnace, a cooling box, a switching mechanism, a cooling mechanism and a movable support mechanism, a vacuum brazing furnace is fixedly arranged in the middle of the base plate, cooling boxes are symmetrically fixedly arranged on both sides of the base plate, the cooling box is connected with both sides of the vacuum brazing furnace, the switching mechanism comprises an electric telescopic rod, a movable plate, a slide rail, a slider, a sealing plate, a brazing table and a vacuum pump, an electric telescopic rod is symmetrically fixedly arranged on the inner side of the cooling box, a movable plate is matched and fixed at the telescopic end of the electric telescopic rod, a slide rail is symmetrically fixedly arranged in the cooling box, a slider is symmetrically fixedly arranged on the movable plate, the slider slides along the slide rail, a sealing plate is matched and fixedly arranged on the inner side of the movable plate, two groups of sealing plates are arranged at intervals, a brazing table is transversely fixedly arranged between the sealing plates, a vacuum pump is fixedly connected to the vacuum brazing furnace, a cooling mechanism is arranged on the outer side of the cooling box, and a movable support mechanism is arranged under the base plate.

[0007] A further improvement is that the sealing plate cooperates with the openings on both sides of the vacuum brazing furnace to seal, a rubber sealing strip is fixedly arranged around the outside of the sealing plate, and the rubber sealing strip fits tightly with the vacuum brazing furnace.

[0008] Further improvements are: the cooling mechanism includes a cooling bin, a fan, an air inlet duct and an air outlet duct, the cooling bin is fixedly provided on the outside of the cooling box, a fan is fixedly provided on the outside of the cooling bin, an air inlet duct is provided between one side of the cooling box and the cooling bin, and an air outlet duct is provided on the other side of the cooling box.

[0009] A further improvement is that: the air inlet pipes and the air outlet pipes are arranged vertically in multiple groups, and the fan is electrically driven by a motor.

[0010] Further improvements are: the mobile support mechanism includes rollers, handles, through holes, legs, and a locking mechanism; rollers are rotatably provided at the four corners below the base plate; a handle is fixedly provided on one side of the base plate; through holes are opened at the four corners of the base plate; brackets are inserted into the through holes; and locking mechanisms are provided at the four corners of the base plate.

[0011] A further improvement is that the locking mechanism includes a fixed plate, a spring, a card block and a card slot, the four corners of the base plate are matched with fixed plates, the outer side of the fixed plate is fixed with a spring, the inner side of the spring is fixed with a card block, and the bracket is arranged with card slots, the card slots correspond to the card blocks and cooperate with each other to lock.

[0012] A further improvement is that the vacuum brazing furnace and the cooling box both have doors opened from the front side.

[0013] The beneficial effects of the utility model are as follows: the utility model drives the movable plate to be alternately sent into the vacuum brazing furnace for welding through the reciprocating extension and retraction of the electric telescopic rod, and returns the metal blanks to the cooling box with the movable plate for air blowing cooling after welding, thereby realizing alternating welding cooling and effectively improving welding efficiency. The support legs are locked by inserting the card blocks into the card slots at the corresponding positions, so that the support can be quickly and conveniently deployed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the overall front cross-sectional view of the utility model;

[0015] Figure 2 It is a side view of the support foot of the utility model;

[0016] Figure 3 It is an enlarged schematic diagram of point A of the present utility model.

[0017] Among them: 1. Bottom plate; 2. Vacuum brazing furnace; 3. Cooling box; 4. Electric telescopic rod; 5. Moving plate; 6. Slide rail; 7. Slider; 8. Sealing plate; 9. Brazing table; 10. Vacuum pump; 11. Rubber sealing strip; 12. Cooling chamber; 13. Fan; 14. Air inlet pipe; 15. Air outlet pipe; 16. Roller; 17. Handle; 18. Through hole; 19. Support foot; 20. Fixed plate; 21. Spring; 22. Block; 23. Slot. DETAILED DESCRIPTION

[0018] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with an embodiment. The embodiment is only used to explain the present invention and does not constitute a limitation on the protection scope of the present invention.

[0019] according to Figure 1 , Figure 2 , Figure 3As shown, the present embodiment provides a metal composite blank vacuum welding device, including a base plate 1, a vacuum brazing furnace 2, a cooling box 3, a switching mechanism, a cooling mechanism and a mobile support mechanism. The vacuum brazing furnace 2 is fixedly arranged in the middle of the base plate 1, and cooling boxes 3 are symmetrically fixedly arranged on both sides of the base plate 1. The cooling box 3 is connected to both sides of the vacuum brazing furnace 2. The switching mechanism includes an electric telescopic rod 4, a movable plate 5, a slide rail 6, a slider 7, a sealing plate 8, a brazing table 9 and a vacuum pump 10. The electric telescopic rod 4 is symmetrically fixedly arranged on the inner side of the cooling box 3, and a movable plate 5 is fixedly arranged at the telescopic end of the electric telescopic rod 4. The cooling box 3 is symmetrically fixedly arranged with a slide rail 6, and the movable plate 5 is symmetrically fixedly arranged with a slider 7. The slider 7 slides along the slide rail 6. A sealing plate 8 is fixedly arranged on the inner side of the movable plate 5. Two groups of sealing plates 8 are arranged at intervals, and brazing tables 9 are fixedly arranged horizontally between the sealing plates 8. A vacuum pump 10 is fixedly connected to the vacuum brazing furnace 2, a cooling mechanism is arranged on the outside of the cooling box 3, and a movable supporting mechanism is arranged under the bottom plate 1. The movable plate 5 and the brazing table 9 are pushed by the electric telescopic rod 4 to slide horizontally along the slide rail 6 under the drive of the slider 7 to send the metal blank into the vacuum brazing furnace 2 for welding or pull out the metal blank for cooling. The movable plates 5 and the brazing tables 9 in the two groups of cooling boxes 3 are alternately slid into the vacuum brazing furnace 2 for vacuum welding, so that the metal blank after welding is completed is blocked by the sealing plate 8 at the same time, which facilitates the vacuum pump 10 to evacuate the vacuum brazing furnace 2, and realize the alternating welding cooling of the metal blank, which solves the problem of waiting for the workpiece to cool down for a long time after welding, affecting the welding efficiency.

[0020] The sealing plate 8 cooperates with the openings on both sides of the vacuum brazing furnace 2 to seal, and a rubber sealing strip 11 is fixed around the sealing plate 8. The rubber sealing strip 11 fits tightly with the vacuum brazing furnace 2, which facilitates rapid vacuuming in the vacuum brazing furnace 2 and effectively ensures the vacuum welding effect.

[0021] The cooling mechanism includes a cooling bin 12, a fan 13, an air inlet pipe 14 and an air outlet pipe 15. The cooling bin 12 is fixedly provided on the outside of the cooling box 3, and the fan 13 is fixedly provided on the outside of the cooling bin 12. An air inlet pipe 14 is provided between one side of the cooling box 3 and the cooling bin 12, and an air outlet pipe 15 is provided on the other side of the cooling box 3. The air inlet pipe 14 and the air outlet pipe 15 are vertically arranged in multiple groups. The fan 13 is electrically driven by a motor. When the metal blank needs to be cooled after welding, the fan 13 starts to blow air into the cooling bin 12. The airflow is blown into the cooling box 3 through the air inlet pipe 14 at a faster wind speed to cool the metal blank, and then blown out from the air outlet pipe 15 to form a stable airflow, thereby effectively improving the cooling efficiency of the metal blank.

[0022] The mobile support mechanism includes rollers 16, handles 17, through holes 18, legs 19, and a locking mechanism. Rollers 16 are rotatably provided at the four corners below the base plate 1, a handle 17 is fixedly provided on one side of the base plate 1, through holes 18 are provided at the four corners of the base plate 1, brackets are inserted into the through holes 18, and locking mechanisms are provided at the four corners of the base plate 1. When it is necessary to move, the handle 17 is pushed, and the rotation of the rollers 16 drives the base plate 1 to move horizontally, which is convenient and quick to move. When support is needed, the legs 19 slide down along the through holes 18 to contact the ground for support.

[0023] The locking mechanism includes a fixing plate 20, a spring 21, a block 22 and a slot 23. The fixing plates 20 are fixedly provided at the four corners of the bottom plate 1. A spring 21 is fixedly provided on the outer side of the fixing plate 20. A block 22 is fixedly provided on the inner side of the spring 21. Slots 23 are arranged on the bracket. The positions of the slots 23 and the blocks 22 correspond to each other and they lock with each other. When the support leg 19 slides down and contacts the ground, the block 22 is inserted into the slot 23 at the corresponding position under the push of the spring 21 to lock the support leg 19. When it needs to be moved, the spring 21 is compressed to pull the block 22 out of the slot 23 to facilitate the sliding and contraction of the support leg 19.

[0024] The vacuum brazing furnace 2 and the cooling box 3 both have doors opened from the front side, so as to facilitate the taking and placing of the metal blanks.

[0025] Before welding, the metal composite blank vacuum welding device pushes the handle to rotate the roller to drive the bottom plate to move to the specified position, and then pushes the block out of the slot and compresses the spring. After the block is unlocked, the support leg slides down along the through hole to touch the ground. After the block is released, it moves again under the elasticity of the spring and is locked in the corresponding slot. When welding, the metal blank is placed on the brazing table and the cooling box and the vacuum brazing furnace are closed. The electric telescopic rod in the cooling box on one side extends out to drive the moving plate and the slide block to slide horizontally along the slide rail. The brazing table pushes the metal blank into the vacuum brazing furnace. At the same time, the sealing plate seals the vacuum brazing furnace and the cooling box. The pump is started to evacuate the inside of the vacuum brazing furnace before welding. After welding is completed, the vacuum pump stops and the electric telescopic rod on one side retracts to balance the air pressure, and the electric telescopic rod on the other side extends to push the movable plate and the brazing table to send another group of metal blanks into the vacuum brazing furnace. The vacuum pump is started again to evacuate the vacuum brazing furnace and weld again. After welding, the metal blanks slide back into the cooling box as the movable plate slides. The fan is started to blow air into the cooling bin, and the air inlet pipe blows the air into the cooling box to cool the metal blanks. The hot air is discharged from the air outlet pipe. After cooling is completed, the cooling box is opened to take out the metal blanks and put them back into the metal blanks to be welded.

[0026] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A vacuum welding device for metal composite blanks, characterized in that: The invention comprises a bottom plate (1), a vacuum brazing furnace (2), a cooling box (3), a switching mechanism, a cooling mechanism and a movable support mechanism. The vacuum brazing furnace (2) is fixedly arranged in the middle of the bottom plate (1). The cooling boxes (3) are symmetrically fixedly arranged on both sides of the bottom plate (1). The cooling boxes (3) are connected to both sides of the vacuum brazing furnace (2). The switching mechanism comprises an electric telescopic rod (4), a movable plate (5), a slide rail (6), a slider (7), a sealing plate (8), a brazing table (9) and a vacuum pump (10). The inner side of the cooling box (3) is symmetrically fixedly arranged with an electric telescopic rod (4) on the upper and lower sides. The electric telescopic rod (4) A movable plate (5) is fixedly provided at the telescopic end, a slide rail (6) is fixedly provided symmetrically in the upper and lower parts of the cooling box (3), a slider (7) is fixedly provided symmetrically in the upper and lower parts of the movable plate (5), and the slider (7) slides along the slide rail (6), a sealing plate (8) is fixedly provided on the inner side of the movable plate (5), two groups of sealing plates (8) are arranged at intervals, a brazing table (9) is fixedly provided transversely between the sealing plates (8), a vacuum pump (10) is fixedly provided on the vacuum brazing furnace (2), a cooling mechanism is provided on the outer side of the cooling box (3), and a movable support mechanism is provided under the bottom plate (1).

2. A metal composite blank vacuum welding device according to claim 1, characterized in that: The sealing plate (8) cooperates with the openings on both sides of the vacuum brazing furnace (2) to seal, and a rubber sealing strip (11) is fixedly provided around the outside of the sealing plate (8), and the rubber sealing strip (11) is tightly fitted with the vacuum brazing furnace (2).

3. The metal composite blank vacuum welding device according to claim 1, characterized in that: The cooling mechanism comprises a cooling bin (12), a fan (13), an air inlet pipe (14) and an air outlet pipe (15); the cooling bin (12) is fixedly arranged on the outside of the cooling bin (3); the fan (13) is fixedly arranged on the outside of the cooling bin (12); an air inlet pipe (14) is arranged between one side of the cooling bin (3) and the cooling bin (12); and an air outlet pipe (15) is arranged inside the other side of the cooling bin (3).

4. A metal composite blank vacuum welding device according to claim 3, characterized in that: The air inlet pipes (14) and the air outlet pipes (15) are arranged vertically in multiple groups, and the fan (13) is electrically driven by a motor.

5. The metal composite blank vacuum welding device according to claim 1, characterized in that: The mobile support mechanism comprises a roller (16), a handle (17), a through hole (18), a support leg (19), and a locking mechanism; rollers (16) are rotatably provided at the four corners below the base plate (1); a handle (17) is fixedly provided on one side of the base plate (1); through holes (18) are provided at the four corners of the base plate (1); brackets are inserted into the through holes (18); and locking mechanisms are provided at the four corners of the base plate (1).

6. A metal composite blank vacuum welding device according to claim 5, characterized in that: The locking mechanism comprises a fixing plate (20), a spring (21), a clamping block (22) and a clamping slot (23); the fixing plates (20) are matched and fixedly provided at the four corners of the bottom plate (1); the spring (21) is fixedly provided on the outer side of the fixing plate (20); the clamping block (22) is fixedly provided on the inner side of the spring (21); the clamping slots (23) are arranged on the bracket; the clamping slots (23) and the clamping blocks (22) correspond in position and cooperate with each other to lock.

7. A metal composite blank vacuum welding device according to claim 1, characterized in that: The vacuum brazing furnace (2) and the cooling box (3) both have doors opened from the front side.

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