Electron beam welding production device suitable for metal alloy resistance material

Abstract

The invention discloses an electron beam welding production device suitable for a metal alloy resistance material, and relates to the technical field of welding, the electron beam welding production device comprises a welding cabin, a pair of outer guide rails, a pair of movable clamping modules, a welding module and a welding table, the pair of outer guide rails are symmetrically arranged on the two sides of the welding cabin, the pair of movable clamping modules are arranged on the pair of outer guide rails correspondingly, the two sides of the welding cabin are symmetrically provided with a pair of clamping sleeves, and the side, close to the welding cabin, of each clamping sleeve is provided with an inner sealing door assembly. An outer sealing door assembly is arranged on the side, away from the welding cabin, of each clamping sleeve, a transition cabin is arranged in the middle of each clamping sleeve, a telescopic sliding rail and a dust removal assembly are arranged in each transition cabin, the two movable clamping modules are driven to work alternately through arrangement of the transition cabins on the two sides of the welding cabin, and the production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of welding, in particular to an electron beam welding production device suitable for metal alloy resistance materials. Background Art

[0002] Electron beam welding refers to the use of accelerated and focused electron beams to bombard the welding surface placed in a vacuum or non-vacuum, so that the workpieces are melted and welding is achieved. It has the characteristics of concentrated energy, concentrated action area, and less thermal radiation interference to other areas. Vacuum electron beam welding is the most widely used electron beam welding. Compared with plasma arc welding, electron beam welding has the advantages of not requiring welding rods, not being easily oxidized, having good process repeatability and small thermal deformation. It can also avoid the generation of combustion smoke, and is widely used in many industries such as aerospace, atomic energy, automobiles, and electrical and electrical instruments.

[0003] In the field of welding alloy resistor materials used in current sensors, vacuum electron beam welding technology is often required. Usually, a mobile clamping module is used to clamp the welding substrate, and then the alloy resistor material to be welded is placed on the welding substrate. The mobile clamping module enters the welding cabin and then evacuates the air. This makes the vacuuming before each welding very time-consuming, reducing the operating efficiency of the equipment. Summary of the invention

[0004] The object of the present invention is to provide an electron beam welding production device suitable for metal alloy resistance materials to solve the problems raised in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an electron beam welding production device suitable for metal alloy resistance materials, comprising a welding cabin, a pair of outer guide rails, a pair of mobile clamping modules, a welding module and a welding table, wherein the welding module and the welding table are arranged inside the welding cabin, the pair of outer guide rails are symmetrically arranged on both sides of the welding cabin, the pair of mobile clamping modules are respectively arranged on the pair of outer guide rails, the pair of mobile clamping modules are connected to the control system circuit, a pair of jackets are symmetrically installed on both sides of the welding cabin, each jacket is provided with an inner sealing door assembly on the side close to the welding cabin, and each jacket is provided with an outer sealing door assembly on the side away from the welding cabin, a transition cabin is provided in the middle of each jacket, and a telescopic slide rail and a dust removal assembly are provided inside each transition cabin. Before electron beam welding, the operator clamps the welding substrate on the mobile clamping module, and then fixes the alloy resistance material to be welded to the welding substrate. Electron beam welding needs to be carried out in a vacuum environment, so it is necessary to start the unit through the control system to draw the inside of the welding cabin into a vacuum state in advance.

[0006] Furthermore, the outer sealing door assembly includes a double-headed motor, a pair of driving bevel gears, a pair of driven bevel gears, a pair of screws, a sealing gate and a sealing disk. The pair of driving bevel gears are installed on the motor shafts on both sides of the double-headed motor. The sealing gate is slidably installed in the jacket. Threaded holes are opened on both sides of the sealing gate. The pair of screws are rotatably installed in the jacket. The pair of screws are respectively screwed with the two threaded holes. The pair of driven bevel gears are arranged on the top of the pair of screws. The pair of driven bevel gears are respectively meshed with the two driving bevel gears for transmission.

[0007] Furthermore, the spiral directions of the two screws are opposite, the double-headed motor drives the active bevel gear to rotate, the active bevel gear drives the driven bevel gear to rotate, and the driven bevel gears on both sides drive the screws to rotate. Since the rotation directions of the two screws are opposite, the two screws have opposite rotation directions, so that the sealing gate moves under the action of the spiral transmission, and by controlling the forward and reverse rotation of the double-headed motor, the sealing gate is controlled to move up or down, the outer sealing door assembly realizes the sealing between the transition cabin and the outside, and the inner sealing door assembly realizes the sealing between the transition cabin and the welding cabin.

[0008] Furthermore, a groove is provided on one side of the sealing gate, and an air pressure hole is opened on the other side of the sealing gate, the air pressure hole is connected with the groove, the sealing disk is slidably installed in the groove, a plurality of springs are provided between the sealing disk and the sealing gate, and the side of the sealing disk away from the air pressure hole is arranged in a conical surface. When the inner sealing door assembly is in a closed state, the interior of the welding cabin is evacuated into a vacuum, the air pressure on one side of the transition cabin is high, and the air pressure on the side of the welding cabin is low. The sealing disk in the inner sealing door assembly moves toward the side of the welding cabin, and the conical surface fits tightly with the jacket to achieve the effect of strengthening the seal. Only when the transition cabin also becomes a vacuum state can the sealing disk be retracted into the groove under the action of the spring, otherwise the sealing gate in the inner sealing door assembly cannot be opened due to the obstruction of the air pressure and the conical surface of the sealing disk.

[0009] Furthermore, the structure and installation method of the inner sealing door assembly are the same as those of the outer sealing door assembly, the sealing disk in the outer sealing door assembly faces the transition cabin, the air pressure hole in the outer sealing door assembly is connected to the atmosphere, the air pressure hole in the inner sealing door assembly faces the transition cabin, and the sealing disk in the inner sealing door assembly faces the welding cabin. When the outer sealing door assembly is in a closed state, as the interior of the transition cabin is evacuated into a vacuum, the external air pressure is greater than the air pressure in the transition cabin, and the sealing disk in the outer sealing door assembly moves to one side of the transition cabin, and the conical surface fits tightly with the jacket to enhance the sealing effect. Only when the transition cabin also returns to normal pressure can the sealing disk be retracted into the groove under the action of the spring, otherwise the sealing gate in the outer sealing door assembly cannot be opened due to the obstruction of the air pressure and the conical surface of the sealing disk.

[0010] Furthermore, the telescopic slide rail includes a fixed slide rail, a middle slide rail and an upper slide rail. The fixed slide rail is arranged in a transition cabin, the middle slide rail is slidably installed on the fixed slide rail, and the upper slide rail is slidably installed on the middle slide rail. Tooth grooves are provided on both sides of the fixed slide rail and the upper slide rail on the side in contact with the middle slide rail.

[0011] Furthermore, the telescopic slide rail also includes a pair of servo motors and a pair of gears. The pair of servo motors are symmetrically installed on both sides of the middle slide rail, and the pair of gears are respectively installed on the motor shafts of the pair of servo motors, each of the gears is meshed with the tooth grooves on the fixed slide rail and the upper slide rail, and the control system controls the servo motor to drive the gears to rotate, the middle slide rail moves along the fixed slide rail, and the upper slide rail also slides along the middle slide rail at the same time, so that the upper slide rail can be extended to both sides. When the outer sealing door assembly is opened, the upper slide rail extends toward the outer guide rail and docks with the outer guide rail, the mobile clamping module moves from the outer guide rail to the upper slide rail, and moves back to the transition cabin with the upper slide rail, and when the inner sealing door assembly is opened, the upper slide rail extends toward the welding table, and the mobile clamping module moves from the upper slide rail to the welding table. The back and forth transfer of the mobile clamping module from the outer guide rail to the welding table is realized through the setting of the telescopic slide rail.

[0012] Furthermore, the dust removal assembly includes an exhaust pipe, a three-way air distribution pipe, a high-pressure gas tank, a vacuum pump, a rotating ring, a plurality of inclined fins and a plurality of guide fins. An annular inclined groove is opened in the transition cabin, and the rotating ring is rotatably installed in the annular inclined groove. A plurality of the inclined fins are evenly distributed in an annular shape and installed on the rotating ring. A plurality of the guide fins are evenly distributed in annular shape and installed in the annular inclined groove. A plurality of the inclined fins are located on the outer ring of a plurality of guide fins. The vacuum pump presses the gas in the transition cabin into the high-pressure gas tank through the exhaust pipe, and the high-pressure gas tank stores the high-pressure gas. In the process of the mobile clamping module following the upper slide rail to move back to the transition cabin, the solenoid valve controls the high-pressure gas in the high-pressure gas tank to enter the three-way air distribution pipe, and the airflow drives the inclined fins to move, so that the rotating ring rotates in the annular inclined groove, so that the high-pressure airflow can pass through the guide fins evenly.

[0013] Furthermore, three air inlet holes are provided on the transition cabin, and the three air inlet holes are connected with the annular inclined groove. An exhaust hole is provided on the transition cabin, one end of the exhaust pipe is connected with the exhaust hole, and the three branch pipes of the three-way air distribution pipe are respectively connected with the three air inlet holes. The exhaust end of the vacuum pump is connected with the other end of the exhaust pipe, and the top of the high-pressure gas tank is connected with the main pipe of the three-way air distribution pipe. The high-pressure airflow is evenly sprayed out through the guide fins, and the dust on the surface of the mobile clamping module and the dust on the welding substrate and the alloy resistance material flow out with the airflow, so as to clean the dust and reduce the influence of dust on welding quality.

[0014] Furthermore, the air outlet end of the vacuum pump is connected to the bottom of the high-pressure gas tank through a pipeline, solenoid valves are provided at the upper and lower ends of the high-pressure gas tank, a one-way valve is provided inside the air extraction pipe, an air inlet valve is provided on the transition cabin, the upper slide rail is docked with the outer guide rail, the mobile clamping module is moved to the upper slide rail, the upper slide rail is slowly retracted into the transition cabin, and at the same time, the high-pressure gas in the high-pressure gas tank moves from the guide fin to the mobile clamping module to the opposite direction to spray out, so as to remove dust on the welding substrate and the alloy resistance material. After the upper slide rail is completely retracted into the transition cabin, the outer sealing door assembly is closed, the transition cabin is evacuated into a vacuum, and the inner sealing The door assembly is opened, the upper slide rail is docked with the welding table, the mobile clamping module is moved to the welding table, and the welding module welds the alloy resistance material. After welding is completed, the mobile clamping module is moved from the welding table back to the transition cabin, the inner sealing door assembly is closed, the air inlet valve is opened, the air pressure in the transition cabin returns to normal, the outer sealing door assembly is opened, and the mobile clamping module returns to the outer guide rail. By setting the transition cabins on both sides of the welding cabin, the two mobile clamping modules are driven to work alternately to improve production efficiency. At the same time, the transition cabin is used to transition between the welding environment and the external environment, reducing the air extraction time before each welding and speeding up the operation efficiency of the equipment.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The setting of the conical surface of the sealing disk can enhance the sealing effect. The sealing door assembly can only be opened when the pressure on both sides of the sealing disk is equal, thus achieving vacuum protection and preventing explosive decompression. The setting of the transition chambers on both sides of the welding cabin drives the two mobile clamping modules to work alternately to improve production efficiency. At the same time, the transition chamber is used to transition the welding environment and the external environment, thus reducing the vacuuming time before each welding and speeding up the operation efficiency of the equipment. The gas in the transition chamber is pressed into the high-pressure gas tank by a vacuum pump, and the high-pressure gas tank stores the high-pressure gas. The dust on the welding substrate and the alloy resistance material flows out with the airflow, thus cleaning the dust and reducing the influence of dust on the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The overall appearance structure of the present invention is shown in FIG. Figure 1 ;

[0018] Figure 2 The overall appearance structure of the present invention is shown in FIG. Figure 2 ;

[0019] Figure 3 The structure of the welding cabin of the present invention is schematically shown in FIG. Figure 1 ;

[0020] Figure 4 The structure of the welding cabin of the present invention is schematically shown in FIG. Figure 2 ;

[0021] Figure 5 The internal structure of the jacket of the present invention is shown in FIG. Figure 1 ;

[0022] Figure 6 The internal structure of the jacket of the present invention is shown in FIG. Figure 2 ;

[0023] Figure 7 It is a structural schematic diagram of the sealing gate of the present invention;

[0024] Figure 8 The structure of the transition compartment of the present invention is schematically shown in FIG. Figure 1 .

[0025] Fig. 9 The structure of the transition compartment of the present invention is schematically shown in FIG. Figure 2 .

[0026] Fig.10 It is a schematic structural diagram of the fixed slide rail part of the present invention.

[0027] In the figure: 1. welding cabin; 2. jacket; 3. outer guide rail; 4. mobile clamping module; 5. welding module; 6. transition cabin; 8. welding table; 9. outer sealing door assembly; 10. inner sealing door assembly; 11. double-headed motor; 12. driving bevel gear; 13. driven bevel gear; 14. screw; 15. sealing gate; 16. sealing disk; 17. spring; 18. exhaust pipe; 19. three-way air distribution pipe; 20. high-pressure gas tank; 21. rotating ring; 22. inclined fin; 23. guide fin; 24. fixed slide rail; 25. middle slide rail; 26. upper slide rail; 27. servo motor; 28. gear; 30. vacuum pump. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Example: Figure 1-Figure 10As shown, the present invention provides a technical solution, an electron beam welding production device suitable for metal alloy resistance materials, comprising a welding cabin 1, a pair of outer guide rails 3, a pair of mobile clamping modules 4, a welding module 5 and a welding table 8, the welding module 5 and the welding table 8 are arranged inside the welding cabin 1, the pair of outer guide rails 3 are symmetrically arranged on both sides of the welding cabin 1, the pair of mobile clamping modules 4 are respectively arranged on the pair of outer guide rails 3, the pair of mobile clamping modules 4 are connected to the control system circuit, a pair of jackets 2 are symmetrically installed on both sides of the welding cabin 1, each jacket 2 is provided with an inner sealing door assembly 10 on the side close to the welding cabin 1, and each jacket 2 is provided with an outer sealing door assembly 9 on the side away from the welding cabin 1, a transition cabin 6 is provided in the middle of each jacket 2, and a telescopic slide rail and a dust removal assembly are provided inside each transition cabin 6. Before electron beam welding, the operator clamps the welding substrate on the mobile clamping module 4, and then fixes the alloy resistance material to be welded to the welding substrate. Electron beam welding needs to be performed in a vacuum environment, so it is necessary to start the unit through the control system to extract the inside of the welding cabin 1 into a vacuum state in advance.

[0030] The outer sealing door assembly 9 includes a double-headed motor 11, a pair of active bevel gears 12, a pair of driven bevel gears 13, a pair of screws 14, a sealing gate 15 and a sealing disk 16. The pair of active bevel gears 12 are installed on the motor shafts on both sides of the double-headed motor 11. The sealing gate 15 is slidably installed in the jacket 2. Threaded holes are provided on both sides of the sealing gate 15. A pair of screws 14 are rotatably installed in the jacket 2. The pair of screws 14 are respectively screwed with two threaded holes. A pair of driven bevel gears 13 are arranged on the top of the pair of screws 14. The pair of driven bevel gears 13 are respectively meshed with the two active bevel gears 12 for transmission. The spiral directions of the two screws 14 are opposite, the double-headed motor 11 drives the active bevel gear 12 to rotate, the active bevel gear 12 drives the driven bevel gear 13 to rotate, and the driven bevel gears 13 on both sides drive the screw 14 to rotate. Since the rotation directions of the two screws 14 are opposite, the two screws 14 have opposite rotation directions, so that the sealing gate 15 moves under the action of the spiral transmission. By controlling the forward and reverse rotation of the double-headed motor 11, the sealing gate 15 is controlled to move up or down, the outer sealing door assembly 9 realizes the sealing between the transition cabin 6 and the outside, and the inner sealing door assembly 10 realizes the sealing between the transition cabin 6 and the welding cabin 1.

[0031] A groove is provided on one side of the sealing gate 15, and an air pressure hole is opened on the other side of the sealing gate 15, the air pressure hole is connected to the groove, a sealing disk 16 is slidably installed in the groove, a plurality of springs 17 are provided between the sealing disk 16 and the sealing gate 15, and the side of the sealing disk 16 away from the air pressure hole is arranged in a conical surface, the structure and installation method of the inner sealing door assembly 10 are the same as the structure and installation method of the outer sealing door assembly 9, the sealing disk 16 in the outer sealing door assembly 9 faces the transition cabin 6, the air pressure hole in the outer sealing door assembly 9 is connected to the atmosphere, the air pressure hole in the inner sealing door assembly 10 faces the transition cabin 6, and the sealing disk 16 in the inner sealing door assembly 10 faces the welding cabin 1.

[0032] When the inner sealing door assembly 10 is in a closed state, the interior of the welding cabin 1 is evacuated, the air pressure on one side of the transition cabin 6 is high, and the air pressure on the side of the welding cabin 1 is low. The sealing disk 16 in the inner sealing door assembly 10 moves toward the side of the welding cabin 1, and the conical surface fits tightly with the jacket 2 to achieve the effect of strengthening the seal. Only when the transition cabin 6 also becomes a vacuum state can the sealing disk 16 be retracted into the groove under the action of the spring 17. Otherwise, the sealing gate in the inner sealing door assembly 10 cannot be opened under the obstruction of the air pressure and the conical surface of the sealing disk 16. When the door 15 and the outer sealing door assembly 9 are in the closed state, as the interior of the transition cabin 6 is evacuated into a vacuum, the external air pressure is greater than the air pressure inside the transition cabin 6, and the sealing disk 16 in the outer sealing door assembly 9 moves to one side of the transition cabin 6, and the conical surface fits tightly with the jacket 2 to achieve the effect of strengthening the seal. Only when the transition cabin 6 also returns to the normal pressure state, the sealing disk 16 can be retracted into the groove under the action of the spring 17. Otherwise, the sealing gate 15 in the outer sealing door assembly 9 cannot be opened due to the obstruction of the air pressure and the conical surface of the sealing disk 16.

[0033] The telescopic slide rail includes a fixed slide rail 24, a middle slide rail 25 and an upper slide rail 26. The fixed slide rail 24 is arranged in the transition cabin 6. The middle slide rail 25 is slidably mounted on the fixed slide rail 24. The upper slide rail 26 is slidably mounted on the middle slide rail 25. The fixed slide rail 24 and the upper slide rail 26 are both provided with tooth grooves on the sides of the contact side with the middle slide rail 25. The telescopic slide rail also includes a pair of servo motors 27 and a pair of gears 28. The pair of servo motors 27 are symmetrically mounted on both sides of the middle slide rail 25. The pair of gears 28 are respectively mounted on the motor shafts of the pair of servo motors 27. Each gear 28 is meshed with the tooth grooves on the fixed slide rail 24 and the upper slide rail 26. The control system controls the servo motor 27 to drive The movable gear 28 rotates, the middle slide rail 25 moves along the fixed slide rail 24, and the upper slide rail 26 also slides along the middle slide rail 25 at the same time, so that the upper slide rail 26 can be extended to both sides. When the outer sealing door assembly 9 is opened, the upper slide rail 26 extends toward the outer guide rail 3 and docks with the outer guide rail 3. The mobile clamping module 4 moves from the outer guide rail 3 to the upper slide rail 26 and moves back to the transition cabin 6 with the upper slide rail 26. When the inner sealing door assembly 10 is opened, the upper slide rail 26 extends toward the welding table 8, and the mobile clamping module 4 moves from the upper slide rail 26 to the welding table 8. By setting the telescopic slide rail, the mobile clamping module 4 can be transferred back and forth from the outer guide rail 3 to the welding table 8.

[0034] The dust removal assembly includes an exhaust pipe 18, a three-way air distribution pipe 19, a high-pressure gas tank 20, a vacuum pump 30, a rotating ring 21, a plurality of inclined fins 22 and a plurality of guide fins 23. An annular inclined groove is provided in the transition chamber 6. The rotating ring 21 is rotatably installed in the annular inclined groove. The plurality of inclined fins 22 are evenly distributed in an annular shape on the rotating ring 21. The plurality of guide fins 23 are evenly distributed in an annular shape in the annular inclined groove. The plurality of inclined fins 22 are located on the outer ring of the plurality of guide fins 23. Three air inlet holes are provided on the transition chamber 6. The three air inlet holes are connected to the annular inclined groove. The inclined grooves are connected, and an exhaust hole is opened on the transition cabin 6. One end of the exhaust pipe 18 is connected to the exhaust hole. The three branches of the three-way air distribution pipe 19 are respectively connected to the three air inlet holes. The exhaust end of the vacuum pump 30 is connected to the other end of the exhaust pipe 18, the top of the high-pressure gas tank 20 is connected to the main pipe of the three-way air distribution pipe 19, the air outlet end of the vacuum pump 30 is connected to the bottom of the high-pressure gas tank 20 through a pipeline, solenoid valves are provided at the upper and lower ends of the high-pressure gas tank 20, a one-way valve is provided inside the exhaust pipe 18, and an air inlet valve is provided on the transition cabin 6.

[0035] The vacuum pump 30 presses the gas in the transition cabin 6 into the high-pressure gas tank 20 through the exhaust pipe 18, and the high-pressure gas tank 20 stores the high-pressure gas. When the mobile clamping module 4 follows the upper slide rail 26 to move back to the transition cabin 6, the solenoid valve controls the high-pressure gas in the high-pressure gas tank 20 to enter the three-way gas distribution pipe 19. The airflow pushes the inclined fins 22 to move, so that the rotating ring 21 rotates in the annular inclined groove, so that the high-pressure airflow can pass through the guide fins 23 evenly. The high-pressure airflow is evenly ejected outward through the guide fins 23, and the dust on the surface of the mobile clamping module 4 and the dust on the welding substrate and the alloy resistance material flow out with the airflow, thereby cleaning the dust and reducing the influence of dust on welding quality.

[0036] The upper slide rail 26 docks with the outer guide rail 3, and the mobile clamping module 4 moves to the upper slide rail 26. The upper slide rail 26 is slowly retracted into the transition chamber 6. At the same time, the high-pressure gas in the high-pressure gas tank 20 moves from the guide fin 23 to the mobile clamping module 4 and sprays out in the opposite direction to remove dust on the welding substrate and the alloy resistance material. After the upper slide rail 26 is completely retracted into the transition chamber 6, the outer sealing door assembly 9 is closed, the transition chamber 6 is evacuated, the inner sealing door assembly 10 is opened, the upper slide rail 26 docks with the welding table 8, and the mobile clamping module 4 moves to the welding table 8. The welding module 5 welds the alloy resistance material. After welding is completed, the mobile clamping module 4 moves from the welding table 8 back to the transition cabin 6, the inner sealing door assembly 10 is closed, the air inlet valve is opened, the air pressure in the transition cabin 6 returns to normal, the outer sealing door assembly 9 is opened, and the mobile clamping module 4 returns to the outer guide rail 3. Through the setting of the transition cabins 6 on both sides of the welding cabin 1, the two mobile clamping modules 4 are driven to work alternately to improve production efficiency. At the same time, the transition cabin 6 is used to transition the welding environment and the external environment, reducing the air extraction time before each welding and speeding up the operation efficiency of the equipment.

[0037] The working principle of the present invention is as follows: before electron beam welding, the operator clamps the welding substrate on the mobile clamping module 4, and then fixes the alloy resistance material to be welded to the welding substrate. Electron beam welding needs to be carried out in a vacuum environment, so it is necessary to start the unit through the control system, and evacuate the inside of the welding cabin 1 into a vacuum state in advance. The double-headed motor 11 drives the active bevel gear 12 to rotate, and the active bevel gear 12 drives the driven bevel gear 13 to rotate. The driven bevel gears 13 on both sides drive the screw 14 to rotate. Since the rotation directions of the two screws 14 are opposite, the rotation directions of the two screws 14 are opposite, so that the sealing gate 15 moves under the action of the spiral transmission. By controlling the forward and reverse rotation of the double-headed motor 11, the sealing gate 15 is controlled to move up or down. The outer sealing door assembly 9 realizes the sealing between the transition cabin 6 and the outside, and the inner sealing door assembly 10 realizes the sealing between the transition cabin 6 and the welding cabin 1.

[0038] When the inner sealing door assembly 10 is in a closed state, the interior of the welding cabin 1 is evacuated, the air pressure on one side of the transition cabin 6 is high, and the air pressure on the side of the welding cabin 1 is low. The sealing disk 16 in the inner sealing door assembly 10 moves toward the side of the welding cabin 1, and the conical surface fits tightly with the jacket 2 to achieve the effect of strengthening the seal. Only when the transition cabin 6 also becomes a vacuum state can the sealing disk 16 be retracted into the groove under the action of the spring 17. Otherwise, the sealing gate in the inner sealing door assembly 10 cannot be opened under the obstruction of the air pressure and the conical surface of the sealing disk 16. When the door 15 and the outer sealing door assembly 9 are in the closed state, as the interior of the transition cabin 6 is evacuated into a vacuum, the external air pressure is greater than the air pressure inside the transition cabin 6, and the sealing disk 16 in the outer sealing door assembly 9 moves to one side of the transition cabin 6, and the conical surface fits tightly with the jacket 2 to achieve the effect of strengthening the seal. Only when the transition cabin 6 also returns to the normal pressure state, the sealing disk 16 can be retracted into the groove under the action of the spring 17. Otherwise, the sealing gate 15 in the outer sealing door assembly 9 cannot be opened due to the obstruction of the air pressure and the conical surface of the sealing disk 16.

[0039] The control system controls the servo motor 27 to drive the gear 28 to rotate, the middle slide rail 25 moves along the fixed slide rail 24, and the upper slide rail 26 also slides along the middle slide rail 25 at the same time, so that the upper slide rail 26 can be extended to both sides. When the outer sealing door assembly 9 is opened, the upper slide rail 26 extends toward the outer guide rail 3 and docks with the outer guide rail 3. The mobile clamping module 4 moves from the outer guide rail 3 to the upper slide rail 26 and moves back to the transition cabin 6 with the upper slide rail 26. When the inner sealing door assembly 10 is opened, the upper slide rail 26 extends toward the welding table 8, and the mobile clamping module 4 moves from the upper slide rail 26 to the welding table 8. By setting the telescopic slide rail, the mobile clamping module 4 can be transferred back and forth from the outer guide rail 3 to the welding table 8.

[0040] The vacuum pump 30 presses the gas in the transition cabin 6 into the high-pressure gas tank 20 through the exhaust pipe 18, and the high-pressure gas tank 20 stores the high-pressure gas. When the mobile clamping module 4 follows the upper slide rail 26 to move back to the transition cabin 6, the solenoid valve controls the high-pressure gas in the high-pressure gas tank 20 to enter the three-way gas distribution pipe 19. The airflow pushes the inclined fins 22 to move, so that the rotating ring 21 rotates in the annular inclined groove, so that the high-pressure airflow can pass through the guide fins 23 evenly. The high-pressure airflow is evenly ejected outward through the guide fins 23, and the dust on the surface of the mobile clamping module 4 and the dust on the welding substrate and the alloy resistance material flow out with the airflow, thereby cleaning the dust and reducing the influence of dust on welding quality.

[0041] The upper slide rail 26 docks with the outer guide rail 3, and the mobile clamping module 4 moves to the upper slide rail 26. The upper slide rail 26 is slowly retracted into the transition chamber 6. At the same time, the high-pressure gas in the high-pressure gas tank 20 moves from the guide fin 23 to the mobile clamping module 4 and sprays out in the opposite direction to remove dust on the welding substrate and the alloy resistance material. After the upper slide rail 26 is completely retracted into the transition chamber 6, the outer sealing door assembly 9 is closed, the transition chamber 6 is evacuated, the inner sealing door assembly 10 is opened, the upper slide rail 26 docks with the welding table 8, and the mobile clamping module 4 moves to the welding table 8. The welding module 5 welds the alloy resistance material. After welding is completed, the mobile clamping module 4 moves from the welding table 8 back to the transition cabin 6, the inner sealing door assembly 10 is closed, the air inlet valve is opened, the air pressure in the transition cabin 6 returns to normal, the outer sealing door assembly 9 is opened, and the mobile clamping module 4 returns to the outer guide rail 3. Through the setting of the transition cabins 6 on both sides of the welding cabin 1, the two mobile clamping modules 4 are driven to work alternately to improve production efficiency. At the same time, the transition cabin 6 is used to transition the welding environment and the external environment, reducing the air extraction time before each welding and speeding up the operation efficiency of the equipment.

[0042] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. An electron beam welding production device suitable for metal alloy resistance materials, comprising a welding cabin (1), a pair of outer guide rails (3), a pair of movable clamping modules (4), a welding module (5) and a welding table (8), wherein the welding module (5) and the welding table (8) are arranged inside the welding cabin (1), the pair of outer guide rails (3) are symmetrically arranged on both sides of the welding cabin (1), the pair of movable clamping modules (4) are respectively arranged on the pair of outer guide rails (3), and the pair of movable clamping modules (4) are connected to the control system circuit, characterized in that: A pair of jackets (2) are symmetrically mounted on both sides of the welding cabin (1); an inner sealing door assembly (10) is arranged on the side of each jacket (2) close to the welding cabin (1); an outer sealing door assembly (9) is arranged on the side of each jacket (2) away from the welding cabin (1); a transition cabin (6) is arranged in the middle of each jacket (2); and a telescopic slide rail and a dust removal assembly are arranged inside each transition cabin (6).

2. The electron beam welding production device for metal alloy resistance materials according to claim 1, characterized in that: The outer sealing door assembly (9) comprises a double-headed motor (11), a pair of active bevel gears (12), a pair of driven bevel gears (13), a pair of screw rods (14), a sealing gate (15) and a sealing disk (16). The pair of active bevel gears (12) are mounted on the motor shafts on both sides of the double-headed motor (11). The sealing gate (15) is slidably mounted in the jacket (2). Threaded holes are provided on both sides of the sealing gate (15). The pair of screw rods (14) are rotatably mounted in the jacket (2). The pair of screw rods (14) are respectively screwed to the two threaded holes. The pair of driven bevel gears (13) are arranged on the tops of the pair of screw rods (14). The pair of driven bevel gears (13) are respectively meshed with the two active bevel gears (12) for transmission.

3. The electron beam welding production device for metal alloy resistance materials according to claim 2, characterized in that: The spiral directions of the two screws (14) are opposite.

4. The electron beam welding production device for metal alloy resistance materials according to claim 2, characterized in that: A groove is provided on one side of the sealing gate (15), and an air pressure hole is provided on the other side of the sealing gate (15). The air pressure hole is communicated with the groove. The sealing disk (16) is slidably installed in the groove. A plurality of springs (17) are provided between the sealing disk (16) and the sealing gate (15). The side of the sealing disk (16) away from the air pressure hole is provided in a conical surface.

5. The electron beam welding production device for metal alloy resistance materials according to claim 4, characterized in that: The structure and installation method of the inner sealing door assembly (10) are the same as those of the outer sealing door assembly (9); The sealing disk (16) in the outer sealing door assembly (9) faces the transition cabin (6), and the air pressure hole in the outer sealing door assembly (9) is connected to the atmosphere; The air pressure hole in the inner sealing door assembly (10) faces the transition cabin (6), and the sealing disk (16) in the inner sealing door assembly (10) faces the welding cabin (1).

6. The electron beam welding production device for metal alloy resistance materials according to claim 1, characterized in that: The telescopic slide rail comprises a fixed slide rail (24), a middle slide rail (25) and an upper slide rail (26); the fixed slide rail (24) is arranged in the transition cabin (6); the middle slide rail (25) is slidably mounted on the fixed slide rail (24); the upper slide rail (26) is slidably mounted on the middle slide rail (25); and tooth grooves are provided on both sides of the fixed slide rail (24) and the upper slide rail (26) on the side in contact with the middle slide rail (25).

7. The electron beam welding production device for metal alloy resistance materials according to claim 6, characterized in that: The telescopic slide rail further comprises a pair of servo motors (27) and a pair of gears (28). The pair of servo motors (27) are symmetrically mounted on both sides of the middle slide rail (25). The pair of gears (28) are respectively mounted on the motor shafts of the pair of servo motors (27). Each of the gears (28) is meshed with the tooth grooves on the fixed slide rail (24) and the upper slide rail (26).

8. The electron beam welding production device for metal alloy resistance materials according to claim 1, characterized in that: The dust removal assembly comprises an exhaust pipe (18), a three-way air distribution pipe (19), a high-pressure gas tank (20), a vacuum pump (30), a rotating ring (21), a plurality of inclined fins (22) and a plurality of guide fins (23); an annular inclined groove is provided in the transition chamber (6); the rotating ring (21) is rotatably mounted in the annular inclined groove; the plurality of inclined fins (22) are evenly distributed in an annular shape on the rotating ring (21); the plurality of guide fins (23) are evenly distributed in an annular shape in the annular inclined groove; and the plurality of inclined fins (22) are located on the outer ring of the plurality of guide fins (23).

9. The electron beam welding production device for metal alloy resistance materials according to claim 8, characterized in that: The transition chamber (6) is provided with three air inlet holes, the three air inlet holes are connected to the annular inclined groove, the transition chamber (6) is provided with an exhaust hole, one end of the exhaust pipe (18) is connected to the exhaust hole, the three branch pipes of the three-way air distribution pipe (19) are respectively connected to the three air inlet holes, the exhaust end of the vacuum pump (30) is connected to the other end of the exhaust pipe (18), and the top of the high-pressure gas tank (20) is connected to the main pipe of the three-way air distribution pipe (19).

10. The electron beam welding production device for metal alloy resistance materials according to claim 9, characterized in that: The air outlet end of the vacuum pump (30) is connected to the bottom of the high-pressure gas tank (20) through a pipeline, the upper and lower ends of the high-pressure gas tank (20) are both provided with solenoid valves, a one-way valve is provided inside the air extraction pipe (18), and an air inlet valve is provided on the transition cabin (6).

Images