Vacuum brazing furnace all-in-one machine

Abstract

The utility model relates to the technical field of brazing furnaces, and discloses a vacuum brazing furnace all-in-one machine which comprises a frame and a boiler installed on the frame, a sealing cover is installed at the opening end of the boiler, a vacuum pump is further installed on the frame, an exhaust pipe extending to the outside of the frame is installed at the exhaust end of the vacuum pump, and the sealing cover is installed on the frame. An air exhaust pipe is installed at the air exhaust end of the vacuum pump, one end of the air exhaust pipe is connected with a first pipeline and a second pipeline through a three-way connector, one end of the first pipeline is connected with the molecular pump, and one end of the second pipeline is connected with a baffle valve installed on the molecular pump. A vacuum pump and a molecular pump are arranged on the frame, the vacuum pump vacuumizes the boiler through the exhaust pipe, the baffle valve and the exhaust pipeline in sequence, and the molecular pump is connected with the boiler through the exhaust pipe. The molecular pump can further extract the interior of the boiler again through the baffle valve and the air extraction pipeline in sequence.

Description

Technical Field

[0001] The utility model relates to the technical field of brazing furnaces, in particular to an integrated vacuum brazing furnace. Background Art

[0002] Vacuum brazing refers to the heating of workpieces in a vacuum chamber. It is mainly used for welding high-quality workpieces and easily oxidized materials. The vacuum brazing furnace is a special equipment for vacuum brazing workpieces.

[0003] During use, a vacuum brazing furnace usually needs to work under vacuum conditions. However, when vacuuming the brazing furnace, a vacuum pump is usually used directly to vacuum the brazing furnace. This treatment method can only extract gas from a single layer of the brazing furnace, resulting in a relatively poor vacuum effect on the brazing furnace.

[0004] Therefore, we proposed a vacuum brazing furnace integrated machine to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to solve the above-mentioned technical problems.

[0006] To achieve the above-mentioned objectives, the utility model adopts the following technical solutions: a vacuum brazing furnace all-in-one machine, comprising a frame and a boiler mounted on the frame, a sealing cover being installed at the open end of the boiler, a vacuum pump being also installed on the frame, an exhaust pipe extending to the outside of the frame being installed at the exhaust end of the vacuum pump, an exhaust pipe being installed at the suction end of the vacuum pump, one end of the exhaust pipe being connected to a first pipeline and a second pipeline respectively through a three-way connector, one end of the first pipeline being connected to a molecular pump, one end of the second pipeline being connected to a baffle valve mounted on the molecular pump, and an exhaust pipe connected to the boiler being installed on the baffle valve.

[0007] Furthermore: the air inlet end of the baffle valve and the air outlet end of the exhaust pipe are both installed with flanges, and the two flanges are connected by a plurality of bolts.

[0008] Furthermore: a solenoid valve is installed at the connection between the three-way connector and the first pipeline.

[0009] Furthermore: first rotating seats are respectively installed on the outer side of the boiler and the outer side of the sealing cover, and an "L"-shaped connecting arm is installed between the two first rotating seats.

[0010] Furthermore: a second rotating seat is fixed on the outer surface of the boiler, a screw is rotatably mounted on the second rotating seat, a fixing seat used in conjunction with the screw is fixed on the sealing cover, and a handwheel for locking the fixing seat is threadedly mounted on the screw.

[0011] Beneficial effects of the utility model:

[0012] The utility model is provided with a vacuum pump and a molecular pump on the frame. The vacuum pump draws vacuum from the boiler through the exhaust pipe, the baffle valve and the exhaust pipe in sequence. At the same time, the molecular pump can draw vacuum from the inside of the boiler again through the baffle valve and the exhaust pipe in sequence. Thus, the interior of the boiler can be simultaneously vacuumed in a dual manner, thereby improving the vacuum extraction effect and enabling the brazing furnace to operate under high vacuum regulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model (including the protective shell);

[0014] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model (excluding the protective shell);

[0015] Figure 3 It is a partial structural diagram of the utility model;

[0016] Figure 4 It is a structural diagram of the connection between the second rotating seat and the fixed seat in the utility model.

[0017] The names corresponding to the marks in the figure are:

[0018] 1. Frame; 2. Boiler; 3. Sealing cover; 4. Vacuum pump; 5. Exhaust pipe; 6. Exhaust pipe; 7. Three-way connector; 8. First pipeline; 9. Second pipeline; 10. Molecular pump; 11. Baffle valve; 12. Exhaust pipe; 13. Flange; 14. Solenoid valve; 15. First rotating seat; 16. Connecting arm; 17. Second rotating seat; 18. Screw; 19. Fixed seat; 20. Handwheel. DETAILED DESCRIPTION

[0019] 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 embodiments described 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 are within the scope of protection of the present invention.

[0020] A vacuum brazing furnace integrated machine includes a frame 1. Several shells 21 are provided on all four sides of the frame 1. The provision of the shells 21 can, on the one hand, improve the aesthetics of the brazing furnace, and on the other hand, play a protective role, reducing the phenomenon of workpieces in the frame 1 being hit. Several heat dissipation covers 22 are provided on the top of the frame 1. Through the provision of the heat dissipation covers 22, heat can be discharged from the frame 1, with a good heat dissipation effect.

[0021] A boiler 2 is installed inside the frame 1 (the boiler is already in the prior art and will not be described in detail in this application). A sealing cover 3 is installed at the opening of the boiler 2. The sealing cover 3 serves to close the boiler 2. It should be noted that a first rotating seat 15 is installed on the outer surface of the boiler 2 and on one side of the sealing cover 3. The same "L"-shaped connecting arm 16 is rotatably mounted on the two first rotating seats 15. The first rotating seat 15 and the connecting arm 16 serve to connect the boiler 2 and the sealing cover 3.

[0022] A second rotating seat 17 is fixed to the outer surface of the boiler 2, and a fixing seat 19 is fixed to the outer surface of the sealing cover 3, and a "U"-shaped slot is provided on the fixing seat 19. A screw 18 is rotatably mounted on the second rotating seat 17, and a handwheel 20 is threadedly mounted on the screw 18. If the screw 18 is rotated to the inside of the "U"-shaped slot, the handwheel 20 can be rotated so that the handwheel 20 can squeeze the fixing seat 19, thereby tightening the sealing cover 3 and preventing air leakage during use of the boiler 2.

[0023] A screw 18 is rotatably mounted on the second rotating seat 17, a fixing seat 19 used in conjunction with the screw 18 is fixed on the sealing cover 3, and a hand wheel 20 for locking the fixing seat 19 is threadedly mounted on the screw 18.

[0024] The frame 1 is also equipped with a vacuum pump 4 which is a 2XZ-15D direct-connected rotary vacuum pump, and the air outlet of the vacuum pump 4 is equipped with an exhaust pipe 5 extending to the outside of the frame 1. Through the setting of the exhaust pipe 5, the extracted gas can be discharged to the outside of the frame 1. The exhaust end of the vacuum pump 4 is equipped with an exhaust pipe 6, which is connected to the first pipeline 8 and the second pipeline 9 respectively through a three-way connector 7; one end of the second pipeline 9 is connected to the baffle valve 11, and the baffle valve 11 is a pneumatic high vacuum baffle valve of the GDQ-J200 model. The exhaust end of the baffle valve 11 is equipped with a flange 13, and one end of the exhaust pipe 12 is also equipped with a flange 13, and The two flanges 13 are connected by a number of bolts (not shown in the figure). The flanges are provided so that the baffle valve 11 can be disassembled. A sealing ring (not shown in the figure) is provided between the two baffle valves 11. The sealing ring is provided to seal and reduce the occurrence of air leakage. One end of the boiler 2 is used to extract the gas in the boiler 2 so that the boiler 2 maintains a vacuum state. One end of the first pipeline 8 is connected to the molecular pump 10, and the model of the molecular pump 10 is: MDP-1200. The molecular pump 10 is provided to extract the gas in the boiler 2 again so that the interior of the boiler 2 is in a high vacuum state.

[0025] A solenoid valve 14 is installed at the connection between the three-way connector 7 and the first pipeline 8. The solenoid valve 14 can relieve pressure to avoid the flapper valve 11 being unable to close due to excessive pressure.

[0026] If the air pressure in the boiler 2 is to be extracted, the vacuum pump 4 and the molecular pump 10 can be turned on. The molecular pump 10 can extract the gas in the boiler 2 through the baffle valve 11 and the inside of the exhaust pipe 12. The gas extracted by the molecular pump 10 is transported to the inside of the first pipeline 8. The vacuum pump 4 can extract the first pipeline 8 and the second pipeline 9 respectively through the exhaust pipe 6. The gas in the first pipeline 8 is extracted into the interior of the vacuum pump 4 in turn through the three-way connector 7 and the exhaust pipe 6 and discharged from the exhaust pipe 5. The second pipeline 9 can extract the air pressure in the boiler 2 again through the cooperation of the baffle valve 11 and the exhaust pipe 12, so that the interior of the boiler 2 is in a high vacuum state.

Claims

1. A vacuum brazing furnace integrated machine, comprising a frame (1) and a boiler (2) mounted on the frame (1), wherein a sealing cover (3) is mounted on the open end of the boiler (2), characterized in that: A vacuum pump (4) is also installed on the frame (1), and an exhaust pipe (6) is installed on the exhaust end of the vacuum pump (4). One end of the exhaust pipe (6) is connected to a first pipeline (8) and a second pipeline (9) respectively through a three-way connector (7). One end of the first pipeline (8) is connected to a molecular pump (10), and one end of the second pipeline (9) is connected to a baffle valve (11) installed on the molecular pump (10), and an exhaust pipe (12) connected to the boiler (2) is installed on the baffle valve (11).

2. The vacuum brazing furnace integrated machine according to claim 1, characterized in that: An exhaust pipe (5) is installed at the exhaust end of the vacuum pump (4), and one end of the exhaust pipe (5) extends to the outside of the frame (1).

3. The integrated vacuum brazing furnace according to claim 1, characterized in that: The air inlet end of the baffle valve (11) and the air outlet end of the air extraction pipe (12) are both installed with flanges (13), and the two flanges (13) are connected by a plurality of bolts.

4. The vacuum brazing furnace integrated machine according to claim 1, characterized in that: A solenoid valve (14) is installed at the connection between the three-way connector (7) and the first pipeline (8).

5. The vacuum brazing furnace integrated machine according to claim 1, characterized in that: First rotating seats (15) are respectively installed on the outer side of the boiler (2) and the outer side of the sealing cover (3), and an "L"-shaped connecting arm (16) is installed between the two first rotating seats (15).

6. The vacuum brazing furnace integrated machine according to claim 1, characterized in that: A second rotating seat (17) is fixed on the outer surface of the boiler (2), a screw (18) is rotatably mounted on the second rotating seat (17), a fixing seat (19) used in conjunction with the screw (18) is fixed on the sealing cover (3), and a hand wheel (20) for locking the fixing seat (19) is threadedly mounted on the screw (18).

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