High-temperature atmosphere precise hot-pressing diffusion welding equipment and welding method

Abstract

The invention discloses high-temperature atmosphere precise hot-pressing diffusion welding equipment and a welding method, which are applied to the technical field of hot-pressing diffusion welding equipment, and are characterized in that the high-temperature atmosphere precise hot-pressing diffusion welding equipment comprises a high-temperature welding device and a cooling device which are in butt joint; the starting end of the high-temperature welding device and the tail end of the cooling device are fixedly connected with a kiln head input device and a kiln tail output device correspondingly, the high-temperature welding device comprises a high-temperature cavity and a guide supporting sliding rail, and a heating assembly is arranged in the high-temperature cavity; the high-temperature cavity is fixedly connected with a hot-pressing welding assembly used for conducting hot-pressing diffusion welding on materials in at least two trays at the same time in the vertical direction, the cooling device comprises a cooling cavity and a water-cooling cooling assembly arranged around the cooling cavity, and a circulating air cooling assembly is further arranged in the cooling cavity. The method has the technical effects that the production efficiency is improved while the product welding yield is improved, and the production cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of hot-press diffusion welding equipment technology, and particularly to a high-temperature atmosphere precision hot-press diffusion welding equipment and welding method. Background Technology

[0002] Hot-press diffusion welding heat treatment is a precision machining technology that uses specific pressure and temperature to allow the materials to be welded to form a metallurgical bond through atomic diffusion. Its core principle is to use heat to activate atomic movement and pressure to eliminate gaps at the material interface, thereby achieving a firm connection between different components or materials. It has advantages such as high welding strength, uniform joint performance, and small deformation. It is widely used in mobile phones, computers, network servers, communication base stations, automobiles, high-speed rail and other fields. It is a key process in the production of various heat spreader radiators, brake disc composite materials and other products. Its processing accuracy, production efficiency and cost control directly affect the quality and market competitiveness of related products.

[0003] Currently, existing hot-press diffusion welding equipment on the market suffers from several drawbacks. Firstly, most existing equipment uses hydraulic cylinders for hot pressing, but the pressure control range and holding accuracy of these cylinders are limited to only 100‰, resulting in low product yield. Furthermore, only one material tray can be hot-pressed at a time, leading to long welding times and significantly reduced efficiency. Secondly, after welding, existing equipment relies on external ambient-temperature circulating water for cooling, resulting in low cooling efficiency and long cooling times. Adding cooling structures further increases costs, severely hindering production efficiency. Therefore, it is necessary to improve the efficiency of existing hot-press welding equipment to increase product yield, improve production efficiency, and reduce production costs. Summary of the Invention

[0004] The primary objective of this invention is to provide a high-temperature atmosphere precision hot-press diffusion welding device, which has the advantages of improving the product welding yield while increasing production efficiency and reducing production costs.

[0005] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a high-temperature atmosphere precision hot-press diffusion welding device, comprising a high-temperature welding device and a cooling device; the starting end of the high-temperature welding device and the end of the cooling device are respectively fixedly connected to a kiln head input device and a kiln tail output device; the high-temperature welding device includes a high-temperature cavity and a guide support slide rail for guiding the material tray; the high-temperature cavity is provided with a heating component for maintaining a high-temperature atmosphere; a hot-press welding component for simultaneously performing hot-press diffusion welding on materials in at least two material trays is fixedly connected vertically at one end of the high-temperature cavity near the cooling device; the cooling device includes a cooling cavity and a water-cooled cooling component arranged around the cooling cavity; and a circulating air-cooling component is also provided in the cooling cavity.

[0006] The present invention is further configured such that: the kiln head input device includes a fixed frame and a kiln head air chamber fixedly connected to the fixed frame; the kiln head air chamber is externally connected to a material tray conveying line for inputting material trays and a material tray lifting and pushing component for pushing the material trays from the material tray conveying line into the kiln head air chamber; the side of the kiln head air chamber is provided with a material tray pushing component for pushing the material trays from inside the kiln head air chamber into the high-temperature cavity; the portion connecting the kiln head air chamber to the material tray conveying line and the portion connecting the kiln head air chamber to the high-temperature cavity is provided with a closed isolation component; and a vacuum pump is externally connected to the kiln head air chamber.

[0007] The present invention is further configured such that: the material tray lifting and pushing assembly includes a horizontal mounting base fixedly connected to the bottom of the material tray conveyor line along the horizontal direction; a horizontal lifting seat is slidably connected to the horizontal mounting base along the vertical direction based on several vertical guide rods; a lifting cylinder is fixedly connected to the horizontal mounting base along the vertical direction to drive the horizontal lifting seat to lift; a horizontal sliding seat is slidably connected to the horizontal lifting seat along the horizontal direction; a first pushing cylinder is fixedly connected to the horizontal sliding seat along the horizontal direction to drive the horizontal sliding seat to slide, thereby pushing the material tray into the inlet of the kiln head gas chamber; and a second pushing cylinder is used to push the material tray located at the inlet of the kiln head gas chamber into the kiln head gas chamber; and a first pushing plate is fixedly connected to the telescopic end of the second pushing cylinder.

[0008] The present invention is further configured such that: the material tray pushing assembly includes a second pushing plate that is slidably connected to the kiln head air chamber along a horizontal direction based on a horizontal guide rod, and a third pushing cylinder that is fixedly connected to the side wall of the kiln head air chamber along a horizontal direction for driving the second pushing plate to move.

[0009] The present invention is further configured such that: the closed isolation component includes an isolation mounting frame fixedly connected to the side wall of the kiln head gas chamber along the vertical direction and a vertically closed isolation plate slidably connected to the isolation mounting frame along the vertical direction for closing the inlet and outlet of the kiln head gas chamber; a lifting and closing cylinder for driving the vertically closed isolation plate to rise and fall is fixedly connected to the isolation mounting frame along the vertical direction; and a sealing gasket is fixedly arranged around the inlet and outlet of the kiln head gas chamber.

[0010] The present invention is further configured such that: the hot-press welding assembly includes a hot-press fixing seat fixedly connected to the top of the high-temperature cavity in a horizontal direction and a hot-press welding plate slidably connected to the top of the high-temperature cavity in a vertical direction; a material tray support seat for supporting a material tray is fixedly connected to the hot-press welding station of the high-temperature cavity; a plurality of quartz heating tubes are fixedly connected in a horizontal direction inside the material tray support seat; the hot-press welding plate covers at least two hot-press welding stations; at least two pressing electric cylinders for driving the hot-press welding plate to press down the material and maintain pressure are fixedly connected in a vertical direction on the hot-press fixing seat; and a pressure sensor for monitoring the pressing pressure is provided between the pressing electric cylinder and the top of the hot-press welding plate.

[0011] The present invention is further configured such that: the water-cooled cooling assembly includes a water-cooled cavity fixedly connected to the periphery of the cooling cavity, a flow cavity for cooling water to circulate between the water-cooled cavity and the cooling cavity, a support base for fixing and supporting the cooling cavity is fixedly connected to the bottom of the water-cooled cavity, a cold water input pipe for realizing cold water input and a plurality of hot water output pipes for realizing hot water output are respectively fixedly connected to the flow cavity, and the cold water input pipe and the hot water output pipe are connected to a cold water cooling device to realize the circulation of cold water.

[0012] The present invention is further configured such that: the circulating air cooling assembly includes several air cooling chambers fixedly connected at intervals along the material conveying direction to the top of the cooling chamber, and several cold air holes opened on the air cooling chambers; an air inlet pipe is connected outside the air cooling chamber for introducing cooling inert gas into the air cooling chamber; a cooling pipe is connected outside the air inlet pipe and immersed in the flow chamber to achieve cooling of the inert gas; several suction pipes are also fixedly connected inside the cooling chamber for extracting the high-temperature inert gas inside the cooling chamber; the suction pipes and the cooling pipes are respectively connected to the inlet and outlet ends of the suction pump to achieve circulation of the inert gas inside the cooling chamber.

[0013] The second objective of this invention is to provide a high-temperature atmosphere precision hot-press diffusion welding method, which has the advantages of improving the product welding yield while increasing production efficiency and reducing production costs.

[0014] The above-mentioned technical objective of this invention is achieved through the following technical solution: a high-temperature atmosphere precision hot-press diffusion welding method, using a high-temperature atmosphere precision hot-press diffusion welding equipment as described in any of the above technical solutions; comprising: Step 1: The material tray containing the material is fed into the high-temperature chamber through the kiln head inlet device and heated; Step 2: The material tray is pushed to the hot press welding station by the subsequent material tray. Multiple hot press welding components simultaneously perform hot press diffusion welding on multiple materials and hold the pressure. Step 3: After the material is hot-pressed and welded, it is transported to the cooling chamber, where the material is cooled by a combination of water-cooled cooling components and circulating air-cooled components. Step 4: The kiln tail output device outputs a tray containing the cooled material.

[0015] The present invention is further configured such that: in step 2, the time for a single hot-press welding is not less than 1 / 3 of the hot-press welding time required for the material.

[0016] In summary, the present invention has the following beneficial effects: 1. The hot-press welding assembly uses a downward electric cylinder instead of a traditional hydraulic cylinder, and is equipped with a pressure sensor to monitor the downward pressure in real time, which greatly improves the control accuracy of the downward pressure and holding pressure. This avoids the problem of unstable product quality caused by inaccurate pressure control in traditional equipment. At the same time, the hot-press welding plate can cover at least two hot-press welding stations, so as to realize the simultaneous hot-press diffusion welding of materials in multiple trays. It can also flexibly adjust the time of a single hot-press welding according to the hot-press time required by the material, avoiding the occurrence of hot-press vacuum period. While ensuring the consistency of welding quality, it greatly improves the welding processing efficiency. 2. The cooling device combines a water-cooled cooling component with a circulating air-cooled component. The water-cooled cooling component forms a flow chamber around the cooling chamber through a water-cooled cavity, allowing circulating cooling water to quickly remove heat from the cavity. Simultaneously, the circulating air-cooled component immerses the cooling tube in the flow chamber, pre-cooling the inert gas inside the cooling tube with water before introducing it into the cooling chamber. Then, with the help of an extraction pipe, the high-temperature inert gas in the cooling chamber is extracted and sequentially fed into the cooling tube through an extraction pump for cooling. After passing through the air inlet pipe and the air-cooled cavity, the low-temperature inert gas is discharged into the cooling chamber through the cold air vent, thus achieving material cooling and realizing the recycling of inert gas. Compared with the traditional method of simply relying on ambient temperature circulating water for cooling, this method improves cooling efficiency while reducing the consumption of cooling media and the cost of additional cooling structures, thereby reducing energy consumption and production costs in the cooling process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this embodiment; Figure 2 This is a schematic diagram of the kiln head input device in this embodiment; Figure 3 yes Figure 2 Enlarged schematic diagram of part A; Figure 4 yes Figure 2 Enlarged diagram of part B; Figure 5 This is a cross-sectional view of the high-temperature welding apparatus in this embodiment; Figure 6 This is a schematic diagram of the cooling device in this embodiment; Figure 7 yes Figure 6 Enlarged schematic diagram of part C; Figure 8 This is a cross-sectional view of the cooling device in this embodiment.

[0018] Reference numerals: 1. High-temperature welding device; 11. High-temperature chamber; 12. Guide support slide rail; 13. Heating component; 14. Hot-press welding component; 141. Hot-press fixing seat; 142. Hot-press welding plate; 143. Material tray support seat; 144. Quartz heating tube; 145. Downward pressing electric cylinder; 146. Pressure sensor; 2. Cooling device; 21. Cooling chamber; 22. Water-cooled cooling component; 221. Water-cooled chamber; 222. Flow chamber; 223. Support seat; 224. Cold water input pipe; 23. Circulating air cooling component; 231. Air-cooled chamber; 232. Cold air hole; 233. Air inlet pipe; 234. Cooling pipe; 235. Extraction pipe; 23 6. Air pump; 3. Kiln head input device; 31. Fixing frame; 32. Kiln head air chamber; 33. Material tray conveyor line; 34. Material tray lifting and pushing assembly; 341. Horizontal mounting base; 342. Vertical guide rod; 343. Horizontal lifting seat; 345. Horizontal sliding seat; 346. First pushing cylinder; 347. Second pushing cylinder; 348. First pushing plate; 35. Material tray pushing assembly; 351. Horizontal guide rod; 352. Second pushing plate; 353. Third pushing cylinder; 36. Sealing and isolation assembly; 361. Isolation mounting frame; 362. Vertical sealing and isolation plate; 363. Lifting and sealing cylinder; 364. Sealing gasket; 4. Kiln tail output device. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings.

[0020] Example 1: refer to Figures 1 to 8A high-temperature atmosphere precision hot-press diffusion welding device includes a high-temperature welding device 1 and a cooling device 2. An isolation door is provided between the high-temperature welding device 1 and the cooling device 2 to isolate the temperature while the material passes through. A kiln head input device 3 and a kiln tail output device 4 are fixedly connected to the starting end of the high-temperature welding device 1 and the end of the cooling device 2, respectively. A material tray carrying material is input into the high-temperature welding device 1 through the kiln head input device 3. After welding and cooling, the material is discharged through the kiln tail output device 4. The high-temperature welding device 1 includes a high-temperature chamber 11 and a guide support slide rail 12 for guiding the material tray. A heating component 13 for maintaining a high-temperature atmosphere is provided inside the high-temperature chamber 11. The heating component 13 is fixedly installed along the direction of the guide support slide rail 12 on the bottom surface and two sides of the high-temperature chamber 11. The quartz heating tube 144 on the side wall maintains a low-pressure, high-temperature environment inside the high-temperature chamber 11. A hot-press welding assembly 14 for simultaneously performing hot-press diffusion welding on materials in at least two trays is fixedly connected vertically at one end of the high-temperature chamber 11 near the cooling device 2. The hot-press welding assembly 14 enables hot-press diffusion welding on materials in multiple trays. It also allows for flexible adjustment of the single hot-press welding time according to the required hot-press time of the material, avoiding the occurrence of hot-press vacuum period and greatly improving welding efficiency. The cooling device 2 includes a cooling chamber 21 and a water-cooled cooling assembly 22 arranged around the cooling chamber 21. A circulating air-cooling assembly 23 is also provided inside the cooling chamber 21. The cooling assembly cools the cooling chamber 21 by combining the water-cooled cooling assembly and the circulating air-cooling assembly 23, thereby improving the cooling efficiency. In this embodiment, the hot-press welding assembly 14 covers two hot-press welding stations, thereby enabling simultaneous hot-pressing of materials on two trays. The time for a single hot-press welding is half the required hot-press welding time for the material, thus avoiding the need to wait for the entire required hot-press welding time before the material can be discharged, reducing the production vacuum period. When the hot-press welding assembly 14 covers n hot-press welding stations (n≤3), the time for a single hot-press welding is 1 / n of the required hot-press welding time for the material.

[0021] refer to Figure 2Specifically, the kiln head input device 3 includes a fixed frame 31 and a kiln head air chamber 32 fixedly connected to the fixed frame 31. A tray conveyor line 33 for inputting the tray is connected outside the kiln head air chamber 32, and a tray lifting and pushing assembly 34 for pushing the tray from the tray conveyor line 33 into the kiln head air chamber 32. A tray pushing assembly 35 for pushing the tray from inside the kiln head air chamber 32 into the high-temperature chamber 11 is provided on the side of the kiln head air chamber 32. A sealing and isolation assembly 36 is provided at the connection between the kiln head air chamber 32 and the tray conveyor line 33, and between the kiln head air chamber 32 and the high-temperature chamber 11. A vacuum pump is connected outside the kiln head air chamber 32. When the tray lifting and pushing assembly 34 pushes the tray into the kiln head air chamber 32, at this time... The first set of closed isolation components 36 connected to the material tray conveyor line 33 is opened, and the second set of closed isolation components 36 connected to the high-temperature chamber 11 is closed. When the material enters the kiln head gas chamber 32, the first set of closed isolation components 36 is closed. The vacuum pump evacuates the kiln head gas chamber 32 to achieve the same low-pressure environment as the high-temperature chamber 11. Then the second set of closed isolation components 36 is opened. After the material tray pushing component 35 pushes the material tray in the kiln head hopper into the high-temperature chamber 11, the second set of closed isolation components 36 is closed, and the first set of closed isolation components 36 is opened for subsequent feeding. The structure of the kiln tail output device 4 is similar to that of the kiln head input device 3, with only the difference in the pushing direction, which will not be described in detail here.

[0022] refer to Figure 2 and Figure 3 Specifically, the lifting and pushing assembly includes a horizontal mounting base 341 fixedly connected to the bottom of the material tray conveyor line 33 along the horizontal direction. A horizontal lifting seat 343 is slidably connected to the horizontal mounting base 341 along the vertical direction based on several vertical guide rods 342. A lifting cylinder is fixedly connected to the horizontal mounting base 341 along the vertical direction to drive the horizontal lifting seat 343 to rise and fall. A horizontal sliding seat 345 is slidably connected to the horizontal lifting seat 343 along the horizontal direction. A first pushing cylinder 346 is fixedly connected to the horizontal sliding seat 345 along the horizontal direction to drive the horizontal sliding seat 345 to slide, thereby pushing the material tray into the inlet of the kiln head gas chamber 32. A third cylinder is used to push the material tray into the kiln head gas chamber 32. The material tray at the inlet of the silo 32 is pushed into the kiln head gas chamber 32 by the second pushing cylinder 347. The telescopic end of the second pushing cylinder 347 is fixedly connected to the first pushing plate 348. When the material tray conveyor line 33 inputs the material tray carrying the material, the lifting cylinder first drives the horizontal lifting seat 343 to rise, and the first pushing cylinder 346 extends to drive the horizontal sliding seat 345 to slide, thereby pushing the material tray to the inlet of the kiln head gas chamber 32. Then, the second pushing cylinder 347 drives the first pushing plate 348 to extend, thereby pushing the material tray located at the inlet of the kiln head gas chamber 32 into the kiln head gas chamber 32. The combination of the first pushing cylinder 346 and the second pushing cylinder 347 greatly reduces the space occupied in the width direction of the equipment.

[0023] refer to Figure 2 and Figure 4 Specifically, the material tray pushing assembly 35 includes a second pusher plate 352 that is slidably connected in the horizontal direction along a horizontal guide rod 351 inside the kiln head air chamber 32, and a third pusher cylinder 353 that is fixedly connected in the horizontal direction to the side wall of the kiln head air chamber 32 for driving the second pusher plate 352 to move. The third pusher cylinder 353 drives the second pusher plate 352 to extend, thereby pushing the material tray in the kiln head air chamber 32 into the high temperature chamber 11.

[0024] refer to Figure 2 and Figure 4 Specifically, the closed isolation component 36 includes an isolation mounting frame 361 fixedly connected to the side wall of the kiln head gas chamber 32 along the vertical direction, and a vertically closed isolation plate 362 slidably connected to the isolation mounting frame 361 along the vertical direction for closing the inlet and outlet of the kiln head gas chamber 32. A lifting and closing cylinder 363 is fixedly connected to the isolation mounting frame 361 along the vertical direction to drive the vertically closed isolation plate 362 to rise and fall. The opening and closing of the kiln head gas chamber inlet and outlet is realized by the lifting and closing cylinder 363 driving the vertically closed isolation plate 362 to rise and fall. A sealing gasket 364 is fixedly arranged on the inlet and outlet of the kiln head gas chamber 32 to ensure sealing.

[0025] refer to Figure 5 Specifically, the hot-press welding assembly 14 includes a hot-press fixing seat 141 fixedly connected to the top of the high-temperature chamber 11 in the horizontal direction and a hot-press welding plate 142 slidably connected to the top of the high-temperature chamber 11 in the vertical direction. A material tray support seat 143 for supporting the material tray is fixedly connected to the hot-press welding station in the high-temperature chamber 11. Several quartz heating tubes 144 are fixedly connected in the horizontal direction inside the material tray support seat 143. The hot-press welding plate 142 covers at least two hot-press welding stations. At least two pressing electric cylinders 145 for driving the hot-press welding plate 142 to press down the material and maintain pressure are fixedly connected in the vertical direction on the hot-press fixing seat 141. A pressure sensor 146 for monitoring the pressing pressure is provided between the pressing electric cylinder 145 and the top of the hot-press welding plate 142. The pressing electric cylinder 145 replaces the traditional hydraulic cylinder. With the pressure sensor 146, the pressing pressure is monitored in real time, which greatly improves the control accuracy of the pressing pressure and the holding pressure, and avoids the problem of unstable product quality caused by inaccurate pressure control in traditional equipment.

[0026] refer to Figures 6 to 8Specifically, the water-cooled cooling assembly 22 includes a water-cooled cavity 221 fixedly connected to the periphery of the cooling cavity 21. A flow chamber 222 for cooling water circulation is provided between the water-cooled cavity 221 and the cooling cavity 21. A support base 223 for fixing and supporting the cooling cavity 21 is fixedly connected to the bottom of the water-cooled cavity 221. A cold water inlet pipe 224 for cold water input and several hot water outlet pipes for hot water output are externally fixed inside the flow chamber 222. The cold water inlet pipe 224 and the hot water outlet pipes are connected to a cold water cooling device to achieve cold water circulation. The water in the flow chamber 222 absorbs heat and cools the water-cooled cavity 221. The heated hot water is output through the hot water outlet pipes to the cold water cooling device for further cooling, and then reintroduced into the flow chamber 222 through the cold water inlet pipe 224 to achieve cold water circulation. In this embodiment, pure water is used to avoid impurities clogging the water pipes and reducing cooling efficiency.

[0027] refer to Figure 7 and Figure 8 Specifically, the circulating air cooling assembly 23 includes several air cooling chambers 231 fixedly connected at intervals along the material conveying direction to the top of the cooling chamber 21, and several air cooling holes 232 opened on the air cooling chambers 231. An air inlet pipe 233 is connected outside the air cooling chambers 231 for introducing cooling inert gas into them. A cooling pipe 234 is connected externally to the air inlet pipe 233 and immersed in the flow chamber 222 to cool the inert gas. Several extraction pipes 235 are also fixedly connected inside the cooling chambers 21 for extracting the high-temperature inert gas. The extraction pipes 235 and cooling pipes 234 are respectively connected to the inlet and outlet ends of the extraction pump 236 to achieve circulation of the inert gas within the cooling chambers 21. The air-cooling component 23 immerses the cooling tube 234 in the flow chamber 222. The water in the flow chamber 222 pre-cools the inert gas in the cooling tube 234 and then introduces it into the cooling chamber 21. The high-temperature inert gas in the cooling chamber 21 is then extracted by the extraction pipe 235 and then enters the cooling tube 234 through the extraction pump 236 for cooling. After cooling, the gas passes through the air inlet pipe 233 and the air-cooling chamber 231. Finally, the low-temperature inert gas is discharged into the cooling chamber 21 through the cold air hole 232 to achieve material cooling and realize the recycling of inert gas. Compared with the traditional method of simply relying on room temperature circulating water for cooling, it improves the cooling efficiency, reduces the consumption of cooling medium and the additional cost of cooling structure, and reduces the energy consumption and production cost of the cooling process.

[0028] Example 2: A high-temperature atmosphere precision hot-press diffusion welding method, using a high-temperature atmosphere precision hot-press diffusion welding apparatus as shown in Example 1, includes: Step 1: The material tray containing the material is fed into the high-temperature chamber 11 through the kiln head input device 3 and heated; Step 2: The material tray moves to the hot press welding station by being pushed by the subsequent material tray. Multiple hot press welding components 14 simultaneously perform hot press diffusion welding on multiple materials and hold the pressure. Step 3: After the material is hot-pressed and welded, it is transported to the cooling chamber 21. The material in the cooling chamber 21 is cooled by the combination of water-cooled cooling component 22 and circulating air-cooled component 23. Step 4: The kiln tail output device 4 outputs a tray containing the cooled material.

[0029] Specifically, in step 2, the time for a single hot-press welding operation shall not be less than 1 / 3 of the hot-press welding time required for the material.

[0030] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make inventive modifications to this embodiment as needed, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A high-temperature atmosphere precision hot-press diffusion welding device, comprising a high-temperature welding device (1) for butt welding and a cooling device (2); characterized in that, The starting end of the high-temperature welding device (1) and the end of the cooling device (2) are respectively fixedly connected to the kiln head input device (3) and the kiln tail output device (4). The high-temperature welding device (1) includes a high-temperature cavity (11) and a guide support slide rail (12) for guiding the material tray. The high-temperature cavity (11) is provided with a heating component (13) for maintaining a high-temperature atmosphere. The end of the high-temperature cavity (11) near the cooling device (2) is fixedly connected in the vertical direction to a hot-press welding component (14) for simultaneously performing hot-press diffusion welding on materials in at least two material trays. The cooling device (2) includes a cooling cavity (21) and a water-cooled cooling component (22) arranged around the cooling cavity (21). The cooling cavity (21) is also provided with a circulating air cooling component (23).

2. The high-temperature atmosphere precision hot-press diffusion welding equipment according to claim 1, characterized in that, The kiln head input device (3) includes a fixed frame (31) and a kiln head air chamber (32) fixedly connected to the fixed frame (31). The kiln head air chamber (32) is externally connected to a material tray conveying line (33) for inputting material trays and a material tray lifting and pushing component (34) for pushing the material tray from the material tray conveying line (33) into the kiln head air chamber (32). The side of the kiln head air chamber (32) is provided with a material tray pushing component (35) for pushing the material tray from the kiln head air chamber (32) into the high temperature cavity (11). The part where the kiln head air chamber (32) connects to the material tray conveying line (33) and the part where the kiln head air chamber (32) connects to the high temperature cavity (11) is provided with a closed isolation component (36). The kiln head air chamber (32) is externally connected to a vacuum pump.

3. The high-temperature atmosphere precision hot-press diffusion welding equipment according to claim 2, characterized in that, The material tray lifting and pushing assembly (34) includes a horizontal mounting base (341) fixedly connected to the bottom of the material tray conveyor line (33) along the horizontal direction. A horizontal lifting seat (343) is slidably connected to the horizontal mounting base (341) along the vertical direction based on several vertical guide rods (342). A lifting cylinder for driving the horizontal lifting seat (343) to rise and fall is fixedly connected to the horizontal mounting base (341) along the vertical direction. A horizontal lifting seat (343) is slidably connected to the horizontal mounting base (343) along the horizontal direction. There is a horizontal sliding seat (345), on which a first pushing cylinder (346) is fixedly connected along the horizontal direction to drive the horizontal sliding seat (345) to slide so as to push the material tray into the inlet of the kiln head gas chamber (32), and a second pushing cylinder (347) is used to push the material tray located at the inlet of the kiln head gas chamber (32) into the kiln head gas chamber (32). The telescopic end of the second pushing cylinder (347) is fixedly connected to a first pushing plate (348).

4. The high-temperature atmosphere precision hot-press diffusion welding equipment according to claim 2, characterized in that, The material tray pushing assembly (35) includes a second pusher plate (352) that is slidably connected in the horizontal direction along a horizontal guide rod (351) inside the kiln head air chamber (32) and a third pusher cylinder (353) that is fixedly connected in the horizontal direction to the side wall of the kiln head air chamber (32) for driving the second pusher plate (352) to move.

5. The high-temperature atmosphere precision hot-press diffusion welding equipment according to claim 2, characterized in that, The closed isolation component (36) includes an isolation mounting frame (361) fixedly connected to the side wall of the kiln head gas chamber (32) along the vertical direction and a vertical closed isolation plate (362) slidably connected to the isolation mounting frame (361) along the vertical direction for sealing the inlet and outlet of the kiln head gas chamber (32). A lifting and sealing cylinder (363) for driving the vertical closed isolation plate (362) to rise and fall is fixedly connected to the isolation mounting frame (361) along the vertical direction. A sealing gasket (364) is fixedly arranged around the inlet and outlet of the kiln head gas chamber (32).

6. The high-temperature atmosphere precision hot-press diffusion welding equipment according to claim 1, characterized in that, The hot-press welding assembly (14) includes a hot-press fixing seat (141) fixedly connected to the top of the high-temperature cavity (11) in the horizontal direction and a hot-press welding plate (142) slidably connected to the top of the high-temperature cavity (11) in the vertical direction. The hot-press welding station of the high-temperature cavity (11) is fixedly connected to a tray support seat (143) for supporting the tray. Several quartz heating tubes (144) are fixedly connected in the tray support seat (143) in the horizontal direction. The hot-press welding plate (142) covers at least two hot-press welding stations. At least two pressing electric cylinders (145) are fixedly connected in the vertical direction on the hot-press fixing seat (141) for driving the hot-press welding plate (142) to press down the material and maintain the pressure. A pressure sensor (146) for monitoring the pressing pressure is provided between the pressing electric cylinder (145) and the top of the hot-press welding plate (142).

7. The high-temperature atmosphere precision hot-press diffusion welding equipment according to claim 1, characterized in that, The water-cooled cooling assembly (22) includes a water-cooled cavity (221) that is fixedly connected to the periphery of the cooling cavity (21). A flow chamber (222) for cooling water to flow is provided between the water-cooled cavity (221) and the cooling cavity (21). A support base (223) for fixing and supporting the cooling cavity (21) is fixedly connected to the bottom of the water-cooled cavity (221). A cold water input pipe (224) for realizing cold water input and a number of hot water output pipes for realizing hot water output are respectively fixedly connected to the flow chamber (222). The cold water input pipe (224) and the hot water output pipe are connected to a cold water cooling device to realize the circulation of cold water.

8. The high-temperature atmosphere precision hot-press diffusion welding equipment according to claim 7, characterized in that, The circulating air cooling assembly (23) includes several air cooling chambers (231) fixedly connected at intervals along the material conveying direction to the top of the cooling chamber (21) and several cold air holes (232) opened on the air cooling chambers (231). The air cooling chambers (231) are externally connected to an air inlet pipe (233) for introducing cooling inert gas into the air cooling chambers (231). The air inlet pipes (233) are externally connected to a cooling pipe (234) immersed in the flow chamber (222) to achieve cooling of the inert gas. Several suction pipes (235) for extracting the high temperature inert gas in the cooling chambers (21) are also fixedly connected inside the cooling chambers (21). The suction pipes (235) and the cooling pipes (234) are respectively externally connected to the inlet and outlet of the suction pump (236) to achieve circulation of the inert gas in the cooling chambers (21).

9. A high-temperature atmosphere precision hot-press diffusion welding method, using a high-temperature atmosphere precision hot-press diffusion welding equipment as described in any one of claims 1-8; characterized in that, include: Step 1: The material tray containing the material is fed into the high-temperature chamber (11) through the kiln head input device (3) and heated; Step 2: The material tray moves to the hot pressing welding station by being pushed by the subsequent material tray. The hot pressing welding assembly (14) simultaneously performs hot pressing diffusion welding on multiple materials and holds the pressure. Step 3: After the material is hot-pressed and welded, it is transported to the cooling chamber (21). The material in the cooling chamber (21) is cooled by the combination of water-cooled cooling component (22) and circulating air-cooled component (23). Step 4: Kiln tail output device (4) outputs a tray containing the cooled material.

10. The high-temperature atmosphere precision hot-press diffusion welding method according to claim 9, characterized in that, In step 2, the time for a single hot-press welding operation shall not be less than 1 / 3 of the hot-press welding time required for the material.

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