Diffusion welding and heat treatment integrated device

Abstract

The utility model relates to the technical field of vacuum diffusion welding furnaces, and particularly discloses a diffusion welding and heat treatment integrated device which comprises a furnace body, a lifting door assembly used for separating the furnace body is arranged in the furnace body, and a first vacuum bin and a second vacuum bin are defined between the furnace body and the lifting door assembly. The first vacuum bin is located at the front end of the second vacuum bin, and a conveying assembly used for conveying workpieces is arranged below the lifting door assembly. The conveying assembly comprises a bottom plate fixed in the furnace body, a machining table is slidably mounted at the top of the bottom plate, a high-temperature-resistant transmission guide rail is arranged between the machining table and the bottom plate, and a sliding block fixed to the bottom of the machining table is arranged in the transmission guide rail. Diffusion welding and heat treatment can be achieved through the first vacuum bin and the second vacuum bin respectively, cost is saved, meanwhile, workpieces are transferred through the transmission assembly, and work efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum diffusion welding furnaces, in particular to an integrated device for diffusion welding and heat treatment. Background Art

[0002] The vacuum diffusion welding furnace uses temperature, pressure, time and vacuum conditions to enable the solid metal joint surface to reach the atomic distance, and the atoms diffuse with each other to achieve solid-state bonding of welding.

[0003] For example, the vacuum diffusion welding equipment disclosed in the technical solution with the announcement number CN221087595U includes: a frame, a vacuum furnace system, a vacuum pumping system and a pressurizing system. It can meet the welding needs of various materials;

[0004] Many products, such as aluminum alloy cold plates, molds, and high-temperature alloy reactors, need to be heat treated after being processed in a vacuum diffusion welding furnace in order to increase strength and improve material structure. This process route of vacuum diffusion welding followed by heat treatment has two disadvantages. First, it requires the investment of two devices, vacuum diffusion welding and heat treatment, which results in high production costs. Second, vacuum diffusion welding is performed first, and then the product enters the heat treatment device for heating after cooling. The transfer takes a certain amount of time, resulting in low work efficiency. Therefore, it is necessary to provide an integrated diffusion welding and heat treatment device. Summary of the invention

[0005] The purpose of the utility model is to provide an integrated diffusion welding and heat treatment device, which can realize diffusion welding and heat treatment respectively through a first vacuum chamber and a second vacuum chamber, thereby saving costs. At the same time, the workpiece is transferred through a transmission component to improve work efficiency, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the utility model provides the following technical solutions: a diffusion welding and heat treatment integrated device, comprising a furnace body, a lifting door assembly for separating the furnace body is arranged inside the furnace body, a first vacuum chamber and a second vacuum chamber are enclosed between the furnace body and the lifting door assembly, the first vacuum chamber is located at the front end of the second vacuum chamber, and a conveying assembly for conveying workpieces is arranged below the lifting door assembly;

[0007] The conveying assembly includes a bottom plate fixed inside the furnace body, a processing table is slidably installed on the top of the bottom plate, and a high-temperature resistant transmission rail is arranged between the processing table and the bottom plate, and a slider fixed to the bottom of the processing table is arranged inside the transmission rail.

[0008] Preferably, the lifting door assembly comprises a lifting door body, and a limiting block is provided at the connection between the lifting door body and the furnace body, an arc door is sleeved on the top of the lifting door body, and the length of the lifting door body is less than the length of the arc door.

[0009] Preferably, a high temperature resistant sealing member is provided between the limit block and the lifting door body.

[0010] Preferably, an inner storage bin is provided inside the lifting door body, and a screw sleeve is fixed inside the inner storage bin, a transmission screw is installed inside the screw sleeve through a screw nut, and the top of the transmission screw is connected to the power output end of the screw motor fixed on the top of the furnace body.

[0011] Preferably, a screw limit plate parallel to the horizontal plane is fixedly installed at the bottom of the transmission screw, and the lifting door body is lifted and lowered in the arc door through the transmission screw and the screw sleeve, and the arc door is fixed on the inner wall of the furnace body.

[0012] Preferably, the transmission screw rod passes through the interior of the installation inner bin.

[0013] Preferably, two groups of exhaust pipes are connected to the top of the furnace body, and the two groups of exhaust pipes are interconnected with the first vacuum chamber and the second vacuum chamber respectively, and sealed doors for entering and exiting workpieces are provided at both the front and rear ends of the furnace body.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. Through the transmission component, the workpiece after diffusion welding in the first vacuum chamber can be transferred to the second vacuum chamber. After the workpiece arrives at the second vacuum chamber, the temperature drops to the temperature required by the heat treatment process, and the heat treatment is carried out according to the heat treatment process requirements. In this way, the original transfer time can be omitted, and the vacuum diffusion welding and heat treatment processes can be realized through one device, which greatly improves the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is the overall structural view of the utility model;

[0018] Figure 2 It is a schematic diagram of the half-section structure of the furnace body of the utility model;

[0019] Figure 3 For the utility model Figure 2 A magnified view of middle;

[0020] Figure 4 It is a schematic diagram of the half-section structure of the lifting door body of the utility model.

[0021] Description of reference numerals:

[0022] 1. Furnace body; 2. Sealing door; 3. Exhaust pipe; 4. Conveying assembly; 401. Bottom plate; 402. Processing table; 403. Transmission guide rail; 404. Slider; 5. Lifting door assembly; 501. Screw motor; 502. Arc door; 503. Lifting door body; 504. Limit block; 505. Screw sleeve; 506. Install inner bin; 507. Transmission screw; 508. Screw limit plate; 6. First vacuum bin; 7. Second vacuum bin. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] The utility model provides a technical solution:

[0025] See also Figure 1 to Figure 2 , a diffusion welding and heat treatment integrated device, comprising a furnace body 1, a lifting door assembly 5 for isolating the furnace body 1 is arranged inside the furnace body 1, a first vacuum chamber 6 and a second vacuum chamber 7 are enclosed between the furnace body 1 and the lifting door assembly 5, the first vacuum chamber 6 is located at the front end of the second vacuum chamber 7, and a conveying assembly 4 for conveying workpieces is arranged below the lifting door assembly 5;

[0026] The conveying assembly 4 includes a base plate 401 fixed inside the furnace body 1, a processing table 402 is slidably installed on the top of the base plate 401, and a high-temperature resistant transmission guide rail 403 is arranged between the processing table 402 and the base plate 401, and a slider 404 fixed to the bottom of the processing table 402 is arranged inside the transmission guide rail 403. Two groups of exhaust pipes 3 are connected to the top of the furnace body 1, and the two groups of exhaust pipes 3 are respectively interconnected with the first vacuum chamber 6 and the second vacuum chamber 7, and sealed doors 2 for entering and exiting workpieces are arranged at the front and rear ends of the furnace body 1.

[0027] By adopting the above technical scheme, the end of the exhaust pipe 3 is connected to the existing vacuum assembly, and a heating assembly is installed in the second vacuum chamber 7 to perform heat treatment on the workpiece. After the workpiece passes through the sealed door 2 at the front end of the first vacuum chamber 6 and enters the furnace body 1, it can be directly placed on the processing table 402, and the vacuum assembly is started to put the furnace body 1 in a vacuum environment. Diffusion welding equipment is arranged inside the first vacuum chamber 6 to perform diffusion welding on the workpiece. After the diffusion welding is completed, the processing table 402 moves backward through the transmission guide rail 403 and the slider 404, and the lifting door assembly 5 is opened, and the workpiece smoothly arrives in the second vacuum chamber 7. Since both the vacuum diffusion welding and heat treatment processes heat the product to a specific temperature and then carry out subsequent processes, and the diffusion welding temperature is higher than the heat treatment temperature, the normal vacuum diffusion welding process has a high welding temperature. After the workpiece arrives in the second vacuum chamber 7, the temperature drops to the temperature required by the heat treatment process, and the heat treatment work is performed according to the requirements of the heat treatment process. In this way, the original transfer time can be omitted, and the vacuum diffusion welding and heat treatment processes can be realized by one device, which greatly improves the work efficiency.

[0028] Specifically, Figures 2 to 4 As shown, the lifting door assembly 5 includes a lifting door body 503, and a limit block 504 is provided at the connection between the lifting door body 503 and the furnace body 1, the top of the lifting door body 503 is sleeved with an arc door 502, and the length of the lifting door body 503 is less than the length of the arc door 502, a high temperature resistant seal is provided between the limit block 504 and the lifting door body 503, and an inner storage bin 506 is provided inside the lifting door body 503, and a screw sleeve 505 is fixedly provided inside the inner storage bin 506, and the screw sleeve A transmission screw 507 is installed inside the cylinder 505 through a screw nut, and the top of the transmission screw 507 is connected to the power output end of the screw motor 501 fixed on the top of the furnace body 1, and a screw limit plate 508 parallel to the horizontal plane is fixedly installed at the bottom of the transmission screw 507, and the lifting door body 503 is lifted and lowered in the arc door 502 through the transmission screw 507 and the screw sleeve 505. The arc door 502 is fixed on the inner wall of the furnace body 1, and the transmission screw 507 runs through the interior of the inner warehouse 506.

[0029] By adopting the above technical solution, when it is necessary to open the lifting door body 503, the screw motor 501 can be started, and the screw motor 501 drives the transmission screw 507 to rotate. At this time, the screw sleeve 505 on the transmission screw 507 moves on the transmission screw 507, and drives the lifting door body 503 to move on the arc door 502, so that the lifting door body 503 moves upward, the first vacuum chamber 6 and the second vacuum chamber 7 are connected to each other, which is convenient for the workpiece to directly reach the inside of the second vacuum chamber 7. In order to enable the lifting door body 503 to move up and down inside the arc door 502, the length of the lifting door body 503 is smaller than the length of the arc door 502, and the distance between the lifting door body 503 and the inner wall of the furnace body 1 is compensated by the limit block 504, so that when the lifting door body 503 falls, it can contact and seal with the limit block 504, thereby blocking the first vacuum chamber 6 and the second vacuum chamber 7, and the workpiece after heat treatment is taken out by the sealing door 2 at the rear end of the second vacuum chamber 7.

[0030] Working principle: After the workpiece passes through the sealed door 2 at the front end of the first vacuum chamber 6 and enters the furnace body 1, it can be directly placed on the processing table 402, and the vacuum assembly is started to put the furnace body 1 in a vacuum environment. A diffusion welding device is set inside the first vacuum chamber 6 to perform diffusion welding on the workpiece. After the diffusion welding is completed, the processing table 402 moves backward through the transmission guide rail 403 and the slider 404, and the screw motor 501 is started at the same time. The screw motor 501 drives the transmission screw 507 to rotate. At this time, the screw sleeve 505 on the transmission screw 507 moves on the transmission screw 507, and drives the lifting door body 503 to move on the curved door 502 , so that the lifting door body 503 moves upward, the first vacuum chamber 6 and the second vacuum chamber 7 are connected to each other, and the workpiece arrives in the second vacuum chamber 7 smoothly. Since both the vacuum diffusion welding and heat treatment processes heat the product to a specific temperature and then carry out subsequent processes, and the diffusion welding temperature is higher than the heat treatment temperature, the normal vacuum diffusion welding process has a high welding temperature. After the workpiece arrives in the second vacuum chamber 7, the temperature drops to the temperature required by the heat treatment process, and the heat treatment work is carried out according to the requirements of the heat treatment process. In this way, the original transfer time can be omitted, and the vacuum diffusion welding and heat treatment processes can be realized through one device, which greatly improves the work efficiency.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A diffusion welding and heat treatment integrated device, comprising a furnace body (1), characterized in that: A lifting door assembly (5) for separating the furnace body (1) is arranged inside the furnace body (1); a first vacuum chamber (6) and a second vacuum chamber (7) are enclosed between the furnace body (1) and the lifting door assembly (5); the first vacuum chamber (6) is located at the front end of the second vacuum chamber (7); and a conveying assembly (4) for conveying workpieces is arranged below the lifting door assembly (5); The conveying assembly (4) comprises a bottom plate (401) fixed inside the furnace body (1), a processing table (402) is slidably mounted on the top of the bottom plate (401), a high temperature resistant transmission guide rail (403) is arranged between the processing table (402) and the bottom plate (401), and a sliding block (404) fixed to the bottom of the processing table (402) is arranged inside the transmission guide rail (403).

2. The integrated diffusion welding and heat treatment device according to claim 1, characterized in that: The lifting door assembly (5) comprises a lifting door body (503), and a limit block (504) is provided at the connection between the lifting door body (503) and the furnace body (1), and a curved door (502) is sleeved on the top of the lifting door body (503), and the length of the lifting door body (503) is less than the length of the curved door (502).

3. The integrated diffusion welding and heat treatment device according to claim 2, characterized in that: A high temperature resistant sealing member is provided between the limiting block (504) and the lifting door body (503).

4. The integrated diffusion welding and heat treatment device according to claim 3, characterized in that: An internal installation bin (506) is provided inside the lifting door body (503), and a screw sleeve (505) is fixedly provided inside the internal installation bin (506), a transmission screw (507) is installed inside the screw sleeve (505) via a screw nut, and the top of the transmission screw (507) is connected to the power output end of a screw motor (501) fixed to the top of the furnace body (1).

5. The integrated diffusion welding and heat treatment device according to claim 4, characterized in that: A screw stop plate (508) parallel to the horizontal plane is fixedly mounted on the bottom of the transmission screw (507), and the lifting door body (503) is lifted and lowered in the arc door (502) through the transmission screw (507) and the screw sleeve (505), and the arc door (502) is fixed on the inner wall of the furnace body (1).

6. The diffusion welding and heat treatment integrated device according to claim 5, characterized in that: The transmission screw rod (507) passes through the interior of the installation inner bin (506).

7. The integrated diffusion welding and heat treatment device according to claim 1, characterized in that: The top of the furnace body (1) is connected to two groups of exhaust pipes (3), and the two groups of exhaust pipes (3) are respectively interconnected with the first vacuum chamber (6) and the second vacuum chamber (7), and the front and rear ends of the furnace body (1) are both provided with sealed doors (2) for entering and exiting workpieces.

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