Induction heating brazing machine

Abstract

The invention discloses an induction heating brazing machine which comprises a power supply cabinet, a hose and a brazing machine, an induction heating circuit is arranged in the power supply cabinet, a water pump and a circulating cooling water tank are arranged in the power supply cabinet, one end of the hose is connected with the power supply cabinet, the other end of the hose is connected with the brazing machine, and a water inlet pipe, a water return pipe, an anode cable and a cathode cable are arranged in the hose. The brazing machine comprises a shell and an induction coil, one end of the shell is provided with an end plate, the end plate is provided with an anode copper sleeve and a cathode copper sleeve, the induction coil is made of a copper pipe, and one end of the induction coil made of the copper pipe is connected with the anode copper sleeve. The invention has the following technical effects: 1, flammable and explosive gas is not needed, and no safety risk is caused to human body and property; harmful gases such as carbon monoxide and carbon dioxide are not generated, and the method is environment-friendly; thirdly, the welding surface is flat, and the welding quality is high; the coil is cooled in a water passing mode, and the coil is prevented from being burnt out in the heating process.

Description

Technical Field

[0001] The invention relates to an induction heating coil for an induction heating device. Background Art

[0002] Brazing is a commonly used processing technology in the field of mechanical processing. It is a welding method that uses liquid brazing material to fill the gap between solid workpieces to connect metals after heating the brazing material and the workpiece at the same time. The method of flame heating is currently used, which requires the use of acetylene, oxygen and other flammable and explosive gases, which can easily cause danger to human body and property. Fire accidents often occur during the brazing process. In addition, harmful gases such as carbon monoxide and carbon dioxide are produced during the brazing process, which are harmful to human body and environment. Summary of the invention

[0003] The object of the present invention is to provide a brazing machine which heats by induction.

[0004] The technical scheme of the present invention is: an induction heating brazing machine, comprising a power cabinet, a hose, and a brazing machine. The power cabinet is equipped with an induction heating circuit, a water pump, and a circulating cooling water tank. One end of the hose is connected to the power cabinet, and the other end is connected to the brazing machine. The hose is equipped with a water inlet pipe, a water return pipe, a positive cable, and a negative cable. The brazing machine comprises a shell and an induction coil. One end of the shell is equipped with an end plate, and a positive copper sleeve and a negative copper sleeve are installed on the end plate. The induction coil is made of a copper tube. One end of the induction coil made of the copper tube is connected to the positive copper sleeve and the other end is connected to the negative copper sleeve. One end of the water inlet pipe is connected to the positive copper sleeve and the other end is connected to the water pump. One end of the water return pipe is connected to the negative copper sleeve and the other end is connected to the circulating cooling water tank. One end of the positive cable is connected to the positive copper sleeve and the other end is connected to the positive pole of the induction heating circuit load. One end of the negative cable is connected to the negative copper sleeve and the other end is connected to the negative pole of the induction heating circuit load.

[0005] The contact surfaces of the induction coil made of copper tube and the positive copper sleeve and the negative copper sleeve are provided with sealing rings.

[0006] An insulating layer is wrapped around the induction coil made of a copper tube, and a connecting block is installed at the connecting end of the induction coil, and the connecting block is installed on the end plate by bolts.

[0007] The return pipe is connected to the circulating cooling water tank through the radiator.

[0008] A handle is arranged on the shell body.

[0009] A bracket is arranged on the power cabinet, a hose hanger and a brazing machine hanger are arranged on the bracket, a hook is arranged on one end of the brazing machine hanger, a lifting ring is arranged on the shell, and the lifting hook is hooked on the lifting ring.

[0010] A rope drum with an elastic loop is hung on the brazing machine.

[0011] The present invention has the following technical effects: first, no flammable and explosive gases are required, and no safety risks are generated to human body and property; second, no harmful gases such as carbon monoxide and carbon dioxide are generated, and it is environmentally friendly; third, the welding surface is flat and the welding quality is high; the coil is cooled by water flow to avoid burning of the coil during the heating process. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is the front view of the induction heating brazing machine of the present invention.

[0013] Figure 2 It is a structural schematic diagram of the induction heating brazing machine of the present invention.

[0014] Figure 3 It is a front view of the brazing machine of the present invention.

[0015] Figure 4 yes Figure 3 Bottom view of .

[0016] Figure 5 A partial cross-sectional view of the invented brazing machine.

[0017] Figure 6 yes Figure 5 A partial enlarged view of .

[0018] Figure 7 Induction heating circuit diagram. DETAILED DESCRIPTION

[0019] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6As shown, an induction heating brazing machine includes a power cabinet 1, a hose 2, and a brazing machine 3. An induction heating circuit 1-1 is installed in the power cabinet, a water pump 1-2 and a circulating cooling water tank 1-3 are installed in the power cabinet 1, one end of the hose 2 is connected to the power cabinet 1, and the other end is connected to the brazing machine 3. An inlet pipe 2-1, a return pipe 2-2, a positive cable 2-3, and a negative cable 2-4 are installed in the hose 2. The brazing machine 3 includes a shell 3-1 and an induction coil 3-2. An end plate 3-3 is installed at one end of the shell 3-1. A positive copper sleeve 3-4 and a negative copper sleeve 3-5 are installed on the end plate 3-3. The induction coil 3-2 is made of a copper tube, one end of the induction coil 3-2 made of a copper tube is connected to the positive copper sleeve 3-4, and the other end is connected to the negative copper sleeve 3-5, one end of the water inlet pipe 2-1 is connected to the positive copper sleeve 3-4, and the other end is connected to the water pump 1-2, one end of the return pipe 2-2 is connected to the negative copper sleeve 3-5, and the other end is connected to the circulating cooling water tank 1-3, one end of the positive cable 2-3 is connected to the positive copper sleeve 3-4, and the other end is connected to the positive pole 1-11 of the induction heating circuit 1-1 load, one end of the negative cable 2-4 is connected to the negative copper sleeve 3-5, and the other end is connected to the negative pole 1-12 of the induction heating circuit 1-1 load.

[0020] The contact surfaces of the induction coil 3-2 made of copper tube and the positive copper sleeve 3-4 and the negative copper sleeve 3-5 are provided with sealing rings 3-6.

[0021] An insulating layer 3-7 is wrapped around the induction coil 3-2 made of a copper tube, and a connecting block 3-8 is installed at the connecting end of the induction coil 3-2. The connecting block 3-8 is installed on the end plate 3-3 through bolts 3-9.

[0022] The return water pipe 2-2 is connected to the circulating cooling water tank 1-3 through the radiator 1-4.

[0023] A handle 3-10 is mounted on the housing 3-1.

[0024] A bracket 4 is mounted on the power cabinet 1, a hose hanger 5 and a brazing machine hanger 6 are mounted on the bracket 4, a hook 6-1 is mounted on one end of the brazing machine hanger 6, a ring 3-11 is mounted on the shell 3-1, and the hook 6-1 is hooked on the ring 3-11.

[0025] The brazing machine hanger 6 is equipped with an elastic ring rope drum 6-2.

[0026] The induction heating circuit is a high-power medium and high-frequency induction heating circuit, including: a three-phase rectifier bridge, an IGBT inverter drive, an IGBT half-bridge inverter, a mainboard PLC, a touch screen, and a switching power supply; three-phase power supplies A, B, and C are connected to the A, B, and C ends of the three-phase rectifier bridge, and the three-phase rectifier bridge is connected to the IGBT half-bridge inverter. A pre-charging resistor R1, a charging relay coil J, a filter circuit, and a resistor-capacitor absorption circuit are connected between the three-phase rectifier bridge and the IGBT half-bridge inverter. The filter circuit is composed of a parallel filter capacitor C1 and a discharge resistor R2. The resistor-capacitor absorption circuit includes capacitors C2 and C3 connected in series, and resistors R3 and R4 connected in series. Capacitors C2 and C3 are connected in parallel with series resistors R3 and R4, and capacitors C2 and C3 are connected to resistors R3 and R4; the IGBT half-bridge inverter is connected to the induction coil L2 ; The Kc1 and Kc2 terminals of the charging relay coil J are connected to the Kc1 / Kc2 pins of the mainboard PLC, the filter circuit is connected to the input voltage detection pin of the mainboard PLC, the IGBT inverter drive is respectively connected to the IGBT half-bridge inverter and the inverter drive pins of the mainboard PLC, the touch screen is connected to the Rs485 pin of the mainboard PLC, the switching power supply is connected to the DC24V pin of the mainboard PLC, the input current sampling coil L1 is connected to the three-phase power supply, the current sampling coil L1 is connected to the input current detection pin of the mainboard PLC, the three-phase power supply A, B, C are connected to the A, B, C three-phase detection pins of the mainboard PLC; the output current sampling coil L3 is connected to the connection end of the GBT half-bridge inverter and the induction coil L2, the current sampling coil L3 is connected to the output current detection pin of the mainboard PLC; the start, stop and detection buttons are connected to the signal input pin of the mainboard PLC.

Claims

1. An induction heating brazing machine, comprising a power cabinet (1), a hose (2), and a brazing machine (3), wherein an induction heating circuit (1-1) is installed in the power cabinet, and characterized in that: The power cabinet (1) is equipped with a water pump (1-2) and a circulating cooling water tank (1-3). One end of a hose (2) is connected to the power cabinet (1) and the other end is connected to a brazing machine (3). The hose (2) is equipped with a water inlet pipe (2-1), a water return pipe (2-2), a positive cable (2-3), and a negative cable (2-4). The brazing machine (3) comprises a shell (3-1) and an induction coil (3-2). One end of the shell (3-1) is equipped with an end plate (3-3). The end plate (3-3) is equipped with a positive copper sleeve (3-4) and a negative copper sleeve (3-5). The induction coil (3-2) is made of a copper tube. One end of the induction coil (3-2) is connected to the positive copper sleeve (3-4) and the other end is connected to the negative copper sleeve (3-5); one end of the water inlet pipe (2-1) is connected to the positive copper sleeve (3-4) and the other end is connected to the water pump (1-2); one end of the return pipe (2-2) is connected to the negative copper sleeve (3-5) and the other end is connected to the circulating cooling water tank (1-3); one end of the positive cable (2-3) is connected to the positive copper sleeve (3-4) and the other end is connected to the positive pole (1-11) of the induction heating circuit (1-1); one end of the negative cable (2-4) is connected to the negative copper sleeve (3-5) and the other end is connected to the negative pole (1-12) of the induction heating circuit (1-1).

2. The induction heating brazing machine according to claim 1, characterized in that: The contact surfaces of the induction coil (3-2) made of copper tube and the positive copper sleeve (3-4) and the negative copper sleeve (3-5) are provided with sealing rings (3-6).

3. The induction heating brazing machine according to claim 1, characterized in that: An insulating layer (3-7) is wrapped around an induction coil (3-2) made of a copper tube, a connection block (3-8) is installed at the connection end of the induction coil (3-2), and the connection block (3-8) is installed on the end plate (3-3) through bolts (3-9).

4. The induction heating brazing machine according to claim 1, characterized in that: The return water pipe (2-2) is connected to the circulating cooling water tank (1-3) through the radiator (1-4).

5. The induction heating brazing machine according to claim 1, characterized in that: A handle (3-10) is mounted on the housing (3-1).

6. The induction heating brazing machine according to claim 1, characterized in that: A bracket (4) is mounted on the power cabinet (1), a hose hanger (5) and a brazing machine hanger (6) are mounted on the bracket (4), a hook (6-1) is mounted on one end of the brazing machine hanger (6), a lifting ring (3-11) is mounted on the housing (3-1), and the lifting hook (6-1) is hooked on the lifting ring (3-11).

7. The induction heating brazing machine according to claim 5, characterized in that: The brazing machine hanger (6) is equipped with an elastic ring rope drum (6-2).

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