CN213764362U - Aluminum alloy vacuum brazing furnace convenient for loading and unloading workpieces - Google Patents
Aluminum alloy vacuum brazing furnace convenient for loading and unloading workpieces Download PDFInfo
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- CN213764362U CN213764362U CN202022856877.4U CN202022856877U CN213764362U CN 213764362 U CN213764362 U CN 213764362U CN 202022856877 U CN202022856877 U CN 202022856877U CN 213764362 U CN213764362 U CN 213764362U
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Abstract
The utility model discloses an aluminum alloy vacuum brazing furnace convenient for loading and unloading workpieces, which comprises a horizontal guide rail, a base and a furnace body, wherein the base and the furnace body are vertically fixed on the horizontal guide rail; the furnace body is provided with a heating chamber. The heating chamber comprises an upper shell and a lower shell fixed on the furnace door; the utility model discloses a vacuum brazing stove is through setting up the stove outer covering that can break away from the heating chamber, set the heating chamber to the lower casing and can center on casing pivoted last casing down to increase the openable area of heating chamber, can be at the different degree of depth manual loading and unloading work pieces of heating chamber, the work piece precision of brazing is high, and heating chamber space utilization is high, and the heating chamber can be dismantled, overhauls the convenience.
Description
Technical Field
The utility model relates to a device field of brazing, concretely relates to aluminum alloy vacuum brazing stove convenient to loading and unloading work piece.
Background
Brazing is a welding technique that uses a brazing filler metal with a melting temperature lower than that of the parent material, and uses an operating temperature lower than the solidus line of the bus and higher than the liquidus line of the brazing filler metal to connect the parent materials together through the melted brazing filler metal.
The vacuum brazing furnace is heating equipment for vacuum brazing by adopting resistance heat as a heat source, the vacuum brazing furnace is uniformly heated, a weldment is small in deformation, no welding flux is used, cleaning is not needed after welding, the brazed product is high in quality, and metals and alloys which are difficult to braze by other methods can be conveniently brazed, so that the vacuum brazing furnace is widely applied to the fields of aerospace, aviation, automobiles, refrigeration, electronics and the like.
At present, a method for fixedly arranging a heating chamber in a furnace body is generally adopted in an aluminum alloy brazing device, a common heating chamber is of a horizontal structure, a door of the heating chamber is arranged at one end of the heating chamber, and due to the fact that the heating chamber has a certain depth and the radius of the heating chamber is small, people cannot enter the heating chamber easily to place workpieces in the deep position of the heating chamber. When workpieces to be brazed are placed, a common method is to stack a plurality of workpieces in advance and then convey the workpieces to a heating chamber through a conveyor, the space of the heating chamber cannot be fully utilized, and the workpieces and brazing filler metal are easy to shift in the conveying process, so that the yield is reduced. In addition, the heating chamber is mostly in a semi-closed structure, so that the heating chamber is not easy to disassemble, and the heating chamber is difficult to overhaul and the like when a heating device fails.
Disclosure of Invention
An object of the utility model is to provide an aluminum alloy vacuum brazing stove convenient to loading and unloading work piece through the stove outer covering that sets up and can break away from the heating chamber, set the heating chamber to the casing down and can center on casing pivoted last casing down to increase the openable area of heating chamber, realize the manual loading and unloading work piece of the different degree of depth at horizontal heating chamber, improved work piece machining precision, improved the convenience of overhauing simultaneously through detachable heating chamber structure.
In order to achieve the purpose, the following scheme is adopted in the application:
an aluminum alloy vacuum brazing furnace convenient for loading and unloading workpieces comprises a horizontal guide rail, a base and a furnace body, wherein the base is vertically fixed on the horizontal guide rail; the furnace body is provided with a heating chamber.
The heating chamber includes an upper housing and a lower housing fixed to the door.
The lower shell comprises two first circular end faces and a lower side wall connected with the two circular end faces, the cross section of the lower side wall is an arc-shaped curved surface, and the radian is larger than 180 degrees. One first circular end face is fixed on the furnace door, is positioned on the inner side of the annular chute and is concentric with the annular chute; the circle center of the other first round end surface is provided with a connecting shaft.
The upper shell comprises a second circular end surface and an upper side wall, the cross section of the upper side wall is an arc-shaped curved surface, and the sum of the radian of the upper side wall and the radian of the lower side wall is more than 360 degrees; one end of the upper side wall is embedded in the annular chute of the furnace door, the other end of the upper side wall is fixedly connected with the second circular end face, the circle center of the second circular end face is connected with the connecting shaft, and a fastening piece is arranged at the end part of the connecting shaft.
Preferably, the fastener comprises a fastening nut; when the fastening nut is screwed down, the position between the upper shell and the lower shell is fixed; when the fastening nut is unscrewed, the upper housing can rotate relative to the lower housing; when the upper shell is positioned right above the lower shell, a gap is reserved between the upper shell and the side wall of the lower shell and used for introducing cooling gas into the heating chamber.
Furthermore, the furnace door and a first circular end surface fixed on the furnace door are provided with communicated vacuum pumping ports, the furnace door is provided with a cooling gas inlet communicated with the furnace shell, and the cooling gas inlet is positioned between the annular chute and the connecting surface of the furnace shell and the furnace door; when the vacuum pumping is carried out, the gas in the heating chamber is pumped out through the vacuum pumping hole; when the heating chamber is cooled, cooling gas is input through the cooling gas input port, enters the heating chamber through a gap between the upper shell and the lower shell, and is pumped out through the vacuum pumping hole after cooling the heating chamber.
Furthermore, a sealing ring used for being connected with the furnace shell is arranged on the furnace door, and a fastening device used for fixing the furnace shell is arranged on the periphery of the furnace door so as to realize integral sealing of the brazing furnace.
Further, heaters are uniformly distributed on the inner surfaces of the upper shell and the lower shell, and the inner side of the lower shell is connected with a brazing table.
Further, a handle is arranged outside the upper shell.
Preferably, a sliding contact line is arranged in the annular sliding groove, and a current collector is embedded at one end of the furnace door on the upper side wall and used for supplying power to the upper shell.
In certain preferred embodiments, the vacuum pumping port is connected to a vacuum pumping system, and the cooling gas input port is connected to an inert high pressure gas cooling system.
In some preferred embodiments, a thermocouple device is arranged on the heating chamber shell, and a sealing ring is arranged at the joint of the thermocouple device and the shell; the thermocouple device is connected with a temperature controller, and the temperature controller is connected with the heater to control the constant temperature heating of the heating chamber.
In some preferred embodiments, a pressure detection device is arranged on the heating chamber shell, and a sealing ring is arranged at the joint of the pressure detection device and the shell; the pressure detection device is connected with the alarm to monitor the pressure of the heating chamber in real time and ensure safe work.
The beneficial effects of the utility model reside in that: the workpiece can be manually assembled and disassembled at different depths of the heating chamber, the error caused by batch conveying of the workpieces to be brazed is reduced, the workpiece brazing precision is high, the space utilization rate of the heating chamber is high, the heating chamber can be disassembled, and the overhaul is convenient.
Drawings
FIG. 1 is a schematic view of the overall structure of an aluminum alloy vacuum brazing furnace convenient for loading and unloading workpieces according to the present invention;
FIG. 2 is a perspective view of a heating chamber of the aluminum alloy vacuum brazing furnace for facilitating the loading and unloading of workpieces according to the present invention;
FIG. 3 is a perspective view of a heating chamber of the aluminum alloy vacuum brazing furnace for facilitating the loading and unloading of workpieces according to the present invention;
FIG. 4 is a perspective view of the upper shell of the aluminum alloy vacuum brazing furnace convenient for loading and unloading workpieces according to the present invention;
FIG. 5 is a perspective view of the lower casing of the aluminum alloy vacuum brazing furnace convenient for loading and unloading workpieces of the present invention;
FIG. 6 is a side view of a base and a furnace door of an aluminum alloy vacuum brazing furnace for facilitating the loading and unloading of workpieces according to the present invention;
FIG. 7 is a front view of a base and a furnace door of the aluminum alloy vacuum brazing furnace for facilitating the loading and unloading of workpieces.
Detailed Description
In the figure, 1 is an upper shell, 2 is a lower shell, 3 is a furnace door, 4 is a base, 5 is a vacuum pumping port, 6 is a cooling gas inlet, 7 is an annular chute, 8 is a sealing ring, 9 is a fastening device, 10 is a connecting shaft, 11 is a fastening piece, 12 is a brazing table, 13 is a furnace shell, 14 is a handle, 15 is a pulley, and 16 is a horizontal guide rail.
Example 1
As shown in figure 1, the aluminum alloy vacuum brazing furnace convenient for loading and unloading workpieces comprises a horizontal guide rail 16, a base 4 vertically fixed on the horizontal guide rail 16 and a furnace body, wherein the furnace body comprises a furnace shell 13 sliding along the horizontal guide rail 16 and a furnace door 3 fixed on the base 4, and pulleys 15 are arranged at the bottom of the furnace shell 13; as shown in fig. 7, the oven door 3 has an annular chute 7; the furnace body is provided with a heating chamber.
As shown in fig. 2 and 3, the heating chamber includes an upper housing 1, and a lower housing 2 fixed to a door 3.
As shown in fig. 5, the lower case 2 includes two first circular end surfaces and a lower side wall connecting the two circular end surfaces, and the cross section of the lower side wall is an arc-shaped curved surface, and the radian is greater than 180 °. As shown in fig. 1, one of the first circular end faces is fixed to the oven door 3, is located inside the annular chute 7, and is concentric with the annular chute; as shown in fig. 3, a connecting shaft 10 is mounted at the center of the other first circular end surface.
As shown in fig. 4, the upper shell 1 includes a second circular end surface and an upper side wall, the cross section of the upper side wall is an arc-shaped curved surface, and the sum of the radian of the upper side wall and the radian of the lower side wall is greater than 360 degrees; one end of the upper side wall is embedded in the annular chute 7 of the furnace door 3, and the other end of the upper side wall is fixedly connected with the second circular end surface, as shown in fig. 3, the circle center of the second circular end surface is connected with the connecting shaft 10, a fastening piece 11 is arranged at the end part of the connecting shaft, the fastening piece 11 is a fastening nut, and when the fastening nut is screwed, the position between the upper shell 1 and the lower shell 2 is fixed; when the fastening nut is unscrewed, the upper housing can rotate relative to the lower housing; when the upper shell 1 is positioned right above the lower shell 2, a gap is reserved between the upper shell and the side wall of the lower shell and used for introducing cooling gas into the heating chamber.
Heaters are uniformly distributed on the inner surfaces of the upper shell 1 and the lower shell 2;
as shown in fig. 1 and 5, a brazing table 12 is provided in the lower case 2.
As shown in fig. 6, the base 4 and the oven door 3 are provided with a communicated vacuum pumping port 5; as shown in fig. 2, a vacuum pumping port is arranged on the first circular end surface fixed on the oven door 3; the three vacuum pumping ports are communicated; as shown in fig. 6, the base 4 and the oven door 3 are provided with a cooling gas inlet 6 leading to the oven shell 13, and the cooling gas inlet is located between the annular chute 7 and the connection surface of the oven shell and the oven door.
As shown in fig. 1, 6 and 7, the oven door 3 is provided with a sealing ring 8 for connecting with the oven shell 13.
As shown in fig. 1 and 6, a fastening device 9 for fixing the furnace shell 13 is disposed on the peripheral side of the furnace door 3.
As shown in fig. 1, a handle 14 is provided outside the upper case 1.
Be equipped with the wiping line in the annular spout, go up the lateral wall and inlay in the one end of furnace gate and be equipped with the current collector for realize the power supply to last casing.
The vacuum pumping port 5 is connected with a roots pump through a pipeline, the roots pump is connected with a heat exchanger, and the heat exchanger is provided with an exhaust valve; the cooling gas inlet 6 is connected with an argon bottle;
a thermocouple device is arranged on the heating chamber shell, and a sealing ring is arranged at the joint of the thermocouple device and the shell; the thermocouple device is connected with a temperature controller, and the temperature controller is connected with the heater.
A pressure detection device is arranged on the heating chamber shell, and a sealing ring is arranged at the joint of the pressure detection device and the shell; the pressure detection device is connected with the alarm.
In use, the fastening device 9 between the furnace door 3 and the furnace shell 13 is opened, the furnace shell 13 is moved away along the slide rail, the fastening nut 11 is unscrewed, and the upper shell 1 is rotated by the handle 14 until the heating chamber is completely opened. Placing a workpiece to be brazed on a brazing table 12 of a heating chamber; after the placement is finished, connecting all parts of the brazing furnace, opening an exhaust valve, switching on a power supply, starting to vacuumize a roots pump, and starting to perform vacuum brazing on a heating chamber when the required vacuum degree is reached; during brazing, the thermocouple device and the pressure detection device work in real time; the temperature controller controls the thermocouple device and the heater to keep the heating chamber in a constant temperature state; the pressure detection device monitors the pressure in the heating chamber in real time to ensure the working safety; after the brazing is finished, opening an argon bottle valve, enabling argon to enter a cooling gas inlet through a pipeline, inputting the argon into a heating chamber through a gap between an upper shell and a lower shell, pumping the argon out through a vacuum pump, and enabling the argon to enter a fin heat exchanger through a pipeline; the fin heat exchanger cools the argon and then discharges the argon, so that the heating chamber is rapidly cooled.
During maintenance, the fastening device 9 between the furnace door 3 and the furnace shell 13 is opened, the furnace shell 13 is moved away along the slide rail, the fastening nut 11 is unscrewed, the upper shell is moved out along the horizontal direction, the separation of the upper shell and the lower shell is realized, and therefore the maintenance of the upper shell and the lower shell is realized respectively.
Claims (6)
1. The aluminum alloy vacuum brazing furnace convenient for loading and unloading workpieces is characterized by comprising a horizontal guide rail, a base and a furnace body, wherein the base is vertically fixed on the horizontal guide rail; the furnace body is internally provided with a heating chamber;
the heating chamber comprises an upper shell and a lower shell fixed on the furnace door;
the lower shell comprises two first circular end faces and a lower side wall connected with the two circular end faces, the cross section of the lower side wall is an arc-shaped curved surface, and the radian is larger than 180 degrees; one first circular end face is fixed on the furnace door, is positioned on the inner side of the annular chute and is concentric with the annular chute; a connecting shaft is arranged at the circle center of the other first circular end surface;
the upper shell comprises a second circular end surface and an upper side wall, the cross section of the upper side wall is an arc-shaped curved surface, and the sum of the radian of the upper side wall and the radian of the lower side wall is more than 360 degrees; one end of the upper side wall is embedded in the annular chute of the furnace door, the other end of the upper side wall is fixedly connected with the circular end face of the second, the circle center of the circular end face of the second is connected with the connecting shaft, and a fastening piece used for fixing the position of the upper shell is arranged at the end part of the connecting shaft.
2. The aluminum alloy vacuum brazing furnace convenient for loading and unloading workpieces as recited in claim 1, wherein the furnace door and the first circular end surface fixed on the furnace door are provided with communicated vacuum pumping ports, the furnace door is provided with a cooling gas inlet port leading to the furnace shell, and the cooling gas inlet port is positioned between the annular chute and the connecting surface of the furnace shell and the furnace door.
3. The aluminum alloy vacuum brazing furnace convenient for workpiece loading and unloading according to claim 1, wherein the furnace door is provided with a sealing ring for connecting with the furnace shell, and the furnace door is provided with fastening devices on the periphery for fixing the furnace shell.
4. The aluminum alloy vacuum brazing furnace convenient for assembling and disassembling workpieces as recited in claim 1, wherein heaters are uniformly distributed on the inner surfaces of the upper shell and the lower shell, and a brazing table is connected to the inner side of the lower shell.
5. An aluminum alloy vacuum brazing furnace convenient for workpiece handling according to claim 1, wherein a handle is provided outside the upper shell.
6. An aluminum alloy vacuum brazing furnace facilitating workpiece handling as recited in claim 1, wherein the fastening member comprises a fastening nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022856877.4U CN213764362U (en) | 2020-12-02 | 2020-12-02 | Aluminum alloy vacuum brazing furnace convenient for loading and unloading workpieces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022856877.4U CN213764362U (en) | 2020-12-02 | 2020-12-02 | Aluminum alloy vacuum brazing furnace convenient for loading and unloading workpieces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213764362U true CN213764362U (en) | 2021-07-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022856877.4U Expired - Fee Related CN213764362U (en) | 2020-12-02 | 2020-12-02 | Aluminum alloy vacuum brazing furnace convenient for loading and unloading workpieces |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213764362U (en) |
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2020
- 2020-12-02 CN CN202022856877.4U patent/CN213764362U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210723 Termination date: 20211202 |
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| CF01 | Termination of patent right due to non-payment of annual fee |