KR100817850B1 - Apparatus of auto brazing for heat exchanger - Google Patents

Abstract

An automatic brazing apparatus for a heat exchanger is provided to expand generality of the apparatus regardless of shape and size of the heat exchanger by performing a brazing operation while transferring the apparatus in accordance with the welding position, improve working speed and product quality by automatically performing a brazing operation, and improve productivity by preventing consumption of skilled manpower. An automatic brazing apparatus(100) for a heat exchanger comprises: a body part(110) including a body(111) and side frames(114) supported onto side parts of the body; a transfer part(120) including a vertical transfer part(121) connected to one side of the body part and vertically transferred, and a horizontal transfer part(125) operated to be transferred horizontally; a brazing fixing part(130) installed on the other side of the body part and horizontally transferred, the brazing fixing part including a forward and backward transfer part(136) formed on an upper part of a fixed body(131) connected to the horizontal transfer part; a brazing part(140) including a brazing body(141) transferred forward and backward and connected to the forward and backward transfer part of the fixed body of the brazing fixing part, and a filler metal supply port(145) for supplying a filler metal to a lower part of the brazing body; a torch part(150) including a torch(152) formed on a lower part of the other side of the brazing body of the brazing part to generate a flame such that the flame is heated by supplied gas; and a control part(160) including a central control operating part(161) formed at one side of the body part to control operation of the body part and supply of gas.

Description

Brazing Apparatus for Heat Exchanger {apparatus of auto brazing for heat exchanger}

The present invention relates to an automatic brazing device for a heat exchanger.

In general, a heat exchanger is a device for transferring heat from a high temperature fluid to a low temperature fluid through a heat transfer wall, and includes a heater, a cooler, an evaporator, and a condenser. Used for 器). The heat transfer medium used to heat the fluid of interest is called heat, and on the contrary, the heat is used to dissipate heat.

The most commonly used type of heat exchanger is metal pipes with heat transfer walls, such as cast type, double tube, finned tube and tube type. The double tube heat exchanger has an inner tube and an outer tube, and heat exchange is performed between the fluid inside the inner tube and the fluid in the annular portion between the tube and the tube. This format is simple in structure but requires less processing.

Larger ones use a bushing type with several small pipes in a large external pipe. Flows of high fluid and low fluid flow in the same direction are called co-flow type, and flow in the opposite direction is called reverse flow and right-flow flow is called cross flow.

Common heat transfer media used in industry include water, water vapor, air, flue gas, petroleum, mercury, sodium, potassium, and dowtherm, a mixture of biphenyl ether and biphenyl.

 As described above, the heat exchanger to be used is formed to use a metal having high thermal conductivity, such as copper or aluminum, as a tube to improve heat conductivity, so that the heat is exchanged while the refrigerant or the fruit passes.

In order to connect the tube used to pass the refrigerant and the fruit to the heat exchanger, the base material is not damaged by adding a filler material below the melting point of the wool material (MELTING POINT) so as to connect and connect the connecting parts by brazing. The joining part is joined by using a brazing method that enables various joining of metals or dissimilar metals.

As described above, the brazing operation for connecting the heat exchanger tube was carried out while heating with a gas torch while injecting the filler metal into the manpower while confirming the bonding degree of the joint surface, but the labor cost is increased and uniformity due to the skill required. There was a problem that the leak occurs in the joint because the brazing operation is not made.

Therefore, the heating torch is heated on both sides while the filler metal is inserted into the pipe contact portion to automatically braze, and the work is performed while heating the pipe contact portion of the heat exchanger transferred to the conveyor, but arranged in one row or two rows. Only the heat exchanger can be used, there was a problem that can not be used in the case of a heat exchanger enlarged in a plurality of rows.

In addition, the conventional automatic brazing device is difficult to check the filler metal bonding state by heating from both sides with the filler material inserted, and if the heat is not uniformly distributed, the gap between the joints is generated and the bonding quality is deteriorated. there was.

In addition, the conventional automatic brazing apparatus transfers the heat exchanger in a state in which it is necessary to transfer the heat exchanger, so that the apparatus according to the transfer is expanded, and the heat exchanger in the heating state after working in the state placed in the transfer means is transferred from the transfer means. It was difficult to take out and there existed a problem that productivity fell.

In order to solve the problems, the main purpose of the present invention is to detect the heating temperature and flame state by the sensor while installing a plurality of torch brazing unit installed in front and rear conveying unit, left and right conveying unit, shanghai conveying unit and the rotating unit according to the welding position As the brazing work is carried out while transferring, the versatility is expanded by carrying out the brazing work while transferring the position regardless of the shape and size of the heat exchanger, and the work is automatically performed to make the speed and quality of the joint uniform. This is improved, and the production cost is lowered because the skilled manpower is not required to improve productivity.

As such, an automatic brazing device for a heat exchanger of the present invention devised to achieve the object is a brazing device for automatically joining a tube of a heat exchanger, the brazing device having a shanghai conveying support for supporting the shanghai conveying on one side The left and right transfer guides are formed on the other side of the body, and both side portions of the body are guided by side guides to form a side frame, and an upper frame is formed on the upper side of the side frame, and is coupled to the shanghai conveying part of the body portion. Forming a shanghai conveying part to operate up and down, the conveying part formed to the left and right conveying portion to the other side of the body, and the left and right conveying support is coupled to the left and right conveying unit to the left and right conveying unit to the fixed body coupled to the left and right conveying guide of the body portion as a guide groove To the upper part of the front and rear conveyance rail equipped with the forward and backward conveyance guide to the upper part of the fixed body. Forming and fixing the filler metal supply roller for supplying the filler metal by the drive of the filler metal supply motor to both sides of the brazing body having a front and rear conveying portion coupled to the front and rear conveying portion of the fixed body of the brazing fixing portion, and fixed A torch part which forms a rotating part rotating to the center of the body, and forms a brazing part that forms a gas supply block for supplying gas to one side of the fixed body, and a torch fixing body in which a torch is installed to the other side of the brazing body of the brazing part; And a control unit including a central control operation unit for controlling the gas of the gas control supply unit connected to the gas supply block while controlling the operation to one side of the body unit.

In addition, the transfer unit is screwed into the shanghai songbolt supported by the shanghai songbolt support formed in the center of the upper frame of the body to the shanghai transport support, the shanghai transport motor and the vertical power transmission unit at the bottom to rotate the shanghai songbolt Combining the shanghai transport portion, the left and right transport bolts on the other side of the body is characterized in that configured to form a left and right transport portion to rotate by coupling to the left and right transport motor to the left and right power transmission.

Then, the front and rear conveying part of the brazing fixing part is screwed into the front and rear conveying support of the brazing body by screwing the front and rear conveying bolt formed by combining with the front and rear conveying motor as the front and rear power transmission part on the upper part of the front and rear conveying rail, and then driving the front and rear conveying bolt. It is characterized in that it is configured to transfer the brazing body back and forth while rotating.

In addition, the rotating part of the brazing unit forms a rotating shaft at the center of the brazing body, and rotates the brazing body by the driving of the rotating motor connected to the rotating power transmission unit on the upper part of the rotating shaft to be rotated by the driving of the rotating motor during the brazing operation. Characterized in that.

And, the torch portion is guided to the other side of the torch fixing body to form a conveying fixture which is guided up and down by the conveying cylinder, and forms a torch on both sides of the torch fixing sphere to the lower portion of the conveying fixture to join the inner and outer sides of the pipe. It is formed so as to connect the gas supply pipe to the gas supply block to both sides to heat, and to form a vibration motor in the center of the torch fixing body characterized in that configured to prevent the attachment of the filler metal by vibration during brazing operation.

In addition, the control unit controls the operation by the central control operation unit for controlling the operation in accordance with the position and the position of the heat exchanger, and the sensing signal of the flame sensor to detect the temperature sensor and flame sensing temperature to one side of the torch unit It is characterized in that it is configured to control the gas supply amount of the gas control supply portion while sending by checking the temperature and flame state of the brazing.

As described above, the automatic brazing apparatus for heat exchanger of the present invention configured to detect the heating temperature and the flame state by a sensor is installed by coupling the brazing unit having a plurality of torches to the front and rear conveying unit, the left and right conveying unit, the shanghai conveying unit and the rotating unit to convey the welding position. As the brazing operation is carried out, the brazing operation is carried out while transferring the position regardless of the shape and size of the heat exchanger, and the versatility is expanded automatically. It is improved and the production cost is lowered because the skilled manpower is not required, thereby providing the effect of improving productivity.

In addition, the automatic brazing device for the heat exchanger of the present invention transfers up and down to the Shanghai transport unit with the operating position, the order and the heating temperature set to the central control operation unit according to the size and shape of the heat exchanger, and the left and right transport unit to the left and right transport unit In addition, by performing the brazing operation while rotating to the rotating part in the state transported to the pipe joint position by the front and rear transfer unit, it is possible to work while automatically correcting the position and brazing temperature, thereby providing an effect of improving the brazing quality.

In addition, the automatic brazing device for heat exchanger of the present invention is coupled to the bolt while guiding the conveying portion to be moved up and down, left and right, and back and forth with the guide, the brazing work portion screwed due to the rotation to the bolt is transferred, the transfer position selection is accurate The amount of feed can be precisely adjusted according to the number of revolutions, providing the effect of improving accuracy.

In addition, the automatic brazing apparatus for the heat exchanger of the present invention forms a fixed body guided by the left and right transfer guides of the body to be transported up and down to the Shanghai transport unit, so as to supply the filler metal to both sides of the brazing body guided by the front and rear transfer guide of the fixed body As the settled filler metal supply roller is driven by the filler metal supply motor, the filler metal is smoothly supplied as the filler metal is supplied through the filler metal supply port, thereby improving the brazing work efficiency.

In addition, the automatic brazing apparatus for heat exchanger of the present invention forms a transfer fixture having a transfer cylinder to be transported up and down while being guided by a transfer guide to a torch fixing body fixed to a brazing body that is rotated according to the shape of a tube by a rotating portion, and transferring Torch is formed on both sides of the lower part of the fixture by heating the gas while supplying gas to the gas supply pipe, forming the torch outside and inside the pipe joint, and supplying the filler metal while heating with the spark ignited by the supplied gas. Brazing operation is performed by rotating with the rotating part according to the shape of the tube, and it rotates according to the shape while efficiently heating the inside and outside, and guides the transfer guide while adjusting the fine up and down amount by the operation of the transfer cylinder. It provides the effect of improving efficiency.

In addition, the automatic brazing apparatus for the heat exchanger of the present invention forms a vibration motor inside the tochigo government to work while vibrating to prevent the filler metal melted in contact with the torch to harden when the pipe joins, contaminating the torch due to the filler material attached To improve the work efficiency.

In addition, the automatic brazing device for the heat exchanger of the present invention forms a temperature sensor and a flame detection sensor on one side of the torch, and sends a signal to the central control operation to detect the state of the flame generated by the operation of the torch and the heating temperature. It provides the effect of improving the brazing quality by adjusting the amount of gas supplied from the gas control supply unit according to the temperature while continuously detecting the set temperature and the flame state during the brazing operation.

Thus, looking at the preferred embodiment of the automatic brazing apparatus for heat exchanger of the present invention configured with reference to the drawings as follows.

First, in the drawings, the same components or parts are to be noted that the same reference numerals as possible. In describing the present invention, detailed descriptions of related well-known functions or configurations are omitted in order not to obscure the subject matter of the present invention.

1 is a perspective view showing an automatic brazing apparatus for a heat exchanger according to the present invention, Figure 2 is a configuration diagram showing an automatic brazing apparatus for a heat exchanger according to the present invention, Figure 3 is a main showing an automatic brazing apparatus for a heat exchanger according to the present invention Figure 4 is a partial configuration, Figure 4 is a block diagram showing the up and down operating state of the automatic brazing apparatus for heat exchanger according to the present invention, Figure 5 is a block diagram showing the left and right operating state of the automatic brazing apparatus for heat exchanger according to the present invention, 6 is a configuration diagram showing the front and rear operation state of the automatic brazing apparatus for heat exchanger according to the present invention, Figure 7 is a configuration diagram showing a rotational operation state of the automatic brazing apparatus for heat exchanger according to the present invention, Figure 8 is It is a block diagram which shows the use condition of the automatic brazing apparatus for heat exchangers.

As shown in Figures 1 to 8, the automatic brazing apparatus 100 for heat exchanger of the present invention is the brazing apparatus 100 for automatically joining the tubes of the heat exchanger, the side frame 114 in the side portion Body portion 110 formed with the support body 111 and the shanghai conveying portion 121 to be transported up and down to one side of the body portion 110, the left and right conveying portion 125 to operate to be transported from side to side Brazing fixing unit 130 and the front and rear conveying unit 136 formed on the upper portion of the fixed body 131 coupled to the left and right conveying unit 125 so that the conveying unit 120 and the left and right conveying to the other side of the body portion 110 is formed. ) And the brazing material supply hole 145 for supplying the filler material to the lower portion of the brazing body 141 which is coupled to the front and rear conveying unit 136 of the fixed body 131 of the brazing fixing part 130 and is conveyed back and forth. The lower part 140 and the other side of the brazing body 141 of the brazing part 140 A torch unit 150 having a torch 152 for generating a flame to be heated with the supplied gas, and a central control operation unit 161 for controlling operation and gas supply to one side of the body unit 110. It comprises a control unit 160.

The body portion 110 forms a left and right transfer guide 113 to the other side of the body 111 having the shanghai transport support 112 to support the shanghai transport on one side, and both sides of the body 111 side guide ( The side frame 114 is formed to support and guides to the 115, and is configured to form the upper frame 116 on top of the side frame 114.

The transfer unit 120 is coupled to the shanghai transport support 112 of the body portion 110 to form a shanghai transport unit 121 that operates up and down, and configured to form a left and right transport unit 125 to the other side of the body 111 do.

Here, the transfer unit 120 is screwed to the shanghai Songbolt 122 supported by the Shanghai Songbolt support 117 formed in the center of the upper frame 116 of the body 111 to the Shanghai Songbu support 112, Shanghai Song motor 123 and the Shanghai Song motor 123 is coupled to the upper and lower power transmission unit 124 to rotate the Shanghai Song Bolt 122, and the left and right transfer bolt 126 on the other side of the body 111 The left and right power transmission unit 128 is preferably configured to form a left and right transport unit 125 to rotate in combination with the left and right transport motor 127.

The brazing fixing unit 130 is coupled to the left and right transport guide 113 of the body 110, the left and right transport support coupled to the left and right transport unit 125 to the fixed body 131 coupled to the guide groove 132 ( 133 is formed, and the front and rear conveying unit 136 is formed on the upper portion of the front and rear conveying rail 134 provided with the front and rear conveying guide 135 on the fixed body 131.

Here, the front and rear transfer portion 136 of the brazing fixing unit 130 is brazed the front and rear transfer bolt 137 formed by coupling with the front and rear transfer motor 138 as the front and rear power transmission unit 139 on the upper and rear transfer rail 134. It is preferable that the front and rear transfer support 142 of the body 141 is screwed to drive the front and rear transfer motor 138, so that the front and rear transfer bolt 137 rotates to transfer the brazing body 141 back and forth.

The brazing unit 140 is a filler material supply motor (2) to both sides of the brazing body 141 having a front and rear conveying unit 136 coupled to the front and rear conveying unit 136 of the fixed body 131 of the brazing fixing unit 130 ( A filler feed roller 144 is formed to be driven by the driving of the 143, and a rotating part 146 is formed to rotate to the center of the fixed body 131. The gas supply block supplies gas to one side of the fixed body 131. 147 is formed.

Here, the rotating unit 146 of the brazing unit 140 forms a rotating shaft 146a at the center of the brazing body 141, and the rotating motor 146b connected to the rotating power transmission unit 146c on the upper portion of the rotating shaft 146a. Rotation of the brazing body 141 by the driving of the configuration is preferably configured to rotate by the drive of the rotary motor 146b during the brazing operation.

The torch unit 150 is configured to form a torch fixing body 131 having the torch 152 installed on the other side of the brazing body 141 of the brazing unit 140.

Here, the torch unit 150 is guided to the transfer guide 153 to the other side of the torch fixing body 151 to form a transfer fixture 156 which is vertically transferred to the transfer cylinder 155, the transfer fixture 156 Torch 152 is formed on both sides of the torch fixture 156 to the lower side to form the gas supply pipe 157 to the gas supply block 147 on both sides to heat the inner and outer sides of the pipe to be joined, the torch fixing body It is preferable to form the vibration motor 158 in the center of 151 so as to prevent the attachment of the filler metal by vibration during the brazing operation.

The control unit 160 is configured to form a central control operation unit 161 for controlling the gas of the gas control supply unit 162 connected to the gas supply block 147 while controlling the operation to one side of the body portion 110.

Here, the control unit 160 controls the operation by the central control operation unit 161 that controls the operation according to the position and the position of the heat exchanger, and the temperature sensor 163 for sensing the temperature to one side of the torch unit 150. And the flame detection sensor 164 to detect the flame by sending a detection signal to check the temperature and flame state of the brazing it is preferably configured to control the gas supply amount of the gas control supply unit 162.

Thus, look at the action on the automatic brazing device for heat exchanger of the present invention configured as follows.

First, the transfer position of the brazing unit 140 provided with the torch unit 150 by inputting information on a portion where the pipe is joined according to the shape and size of the heat exchanger to the central control operation unit 161 of the control unit 160. And the temperature to be heated by the torch 152 of the torch unit 150.

In this way, when the heat exchanger is supplied in the state in which the transfer position and the temperature are set in the central control operation unit 161, the central control of the body 111 of the body part 110 formed to be guided by the side guide 115 to the side frame 114 is performed. Shanghai Songbolt supported by the Shanghai Songbolt 117 of the upper frame 116 is coupled to the Shanghai Song motor 123 and the vertical power transmission unit 124 so that the up and down is adjusted by the operation of the operating unit 161. When rotating the 122, the shanghai Songbolt 122 and the shanghai Song support portion 112 is screwed up and down while moving the body 111 to the set height of the central control operation unit 161.

As described above, the left and right transfer motor 127 of the left and right transfer unit 125 formed on the other side of the body 111 in the state of transferring the body 111 to the set position by the Shanghai transfer unit 121, the central control unit 161 By rotating in accordance with the signal of the left and right transfer bolt 126 coupled to the left and right power transmission unit 128, the fixed body 131 having a screw coupled left and right transfer support 133 on the other side of the body 111 The guide body 132 is coupled to the formed left and right transport guide 113 and is guided to the left and right to transfer the fixed body 131 to the set position.

Thus, the front and rear transfer motor of the front and rear transfer unit 136 while being guided to the front and rear transfer rail 134 provided with the front and rear transfer guide 135 on the upper portion of the fixed body 131 in the state in which the fixed body 131 is moved left and right ( When the forward and backward transfer bolt 137 coupled to the forward and backward power transmission unit 139 rotates by the operation of the 138, the brazing body 141 having the screwed forward and backward support 142 is moved forward and backward to the brazing body to the set position. 141.

As described above, tochigi fixed body on the other side of the brazing body 141 in the state of transferring the brazing body 141 to the heat exchanger to the brazing position by transferring to the shanghai conveying unit 121, left and right conveying unit 125 and the front and rear conveying unit 136 The torch 152 fixed to 131 is supplied to the gas supply block 147 connected to the gas supply pipe 157 while controlling the amount of gas to the gas control supply 162 to connect the heat exchanger to the torch 152 with flames. Heat the part.

At this time, the torch 152 of the torch unit 150 is guided to the transfer guide 153 coupled to the torch fixing body 131 is provided in the lower portion of the transfer fixture 156 is transferred up and down to the transfer cylinder 155 The torch 152 fixedly installed at both sides of the torch fixture 156, and the torch 152 on one side heats the outside of the pipe to be joined, and the torch 152 on the other side heats the inside of the pipe to be joined, thereby increasing the heating efficiency and brazing operation. The fine conveying amount which is transferred up and down in the middle is conveyed by the operation of the conveying cylinder 155 without driving the shanghai conveying unit 121.

In addition, a flame sensor 164 is formed on one side of the torch unit 150 to detect the temperature of the torch 152, and checks the generation form and the normal state of the flame generated in the torch 152. ) To detect the state of the flame and the temperature is sent to the central control operation unit 161 to control the amount of gas supplied from the gas control supply unit 162 to control the temperature to be bonded.

Thus, while heating the pipe joint of the heat exchanger with the torch 152, the filler metal supply opening 145 of the filler material is placed in the filler metal supply roller 144 by driving the filler metal supply motor 143 of the brazing unit 140. When supplied to the heated pipe joint portion through the supply temperature is melted by the heating temperature is supplied to be bonded to the pipe joint portion, and the rotary motor 146b to the rotating portion 146 formed on the brazing portion 140 according to the shape of the circular tube Rotate the brazing body 141 to which the torch unit 150 is fixed by rotating the rotating shaft 146a connected to the rotational power transmission unit 146c to rotate the filler metal supply hole 145 and the torch 152. Join the tube.

At this time, the vibration motor 158 is formed inside the torch unit 150 to perform work while vibrating the torch 152 to prevent adhesion of the molten filler material to the torch 152 during melting of the filler metal.

As described above, the joint is melted while melting the filler metal, and according to the position of the pipe set according to the shape and size of the heat exchanger of the central control unit 160, the shanghai conveying unit 121, the left and right conveying unit 125, and the front and rear are different. The transfer unit 136, and after the transfer to operate the transfer cylinder 155 for transferring the rotating unit 146 and the torch 152 up and down to perform the brazing operation while adjusting the shape of the tube and the fine shanghai position.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary and will be understood by those of ordinary skill in the art that various modifications and variations can be made therefrom. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

1 is a perspective view showing an automatic brazing apparatus for a heat exchanger according to the present invention.

2 is a configuration diagram showing the up and down operating state of the automatic brazing apparatus for heat exchangers according to the present invention.

3 is a block diagram showing the left and right operating state of the automatic brazing apparatus for heat exchangers according to the present invention.

Figure 4 is a block diagram showing the front and rear operating state of the automatic brazing apparatus for heat exchangers according to the present invention.

5 is a configuration diagram showing a rotation operation state of the automatic brazing apparatus for heat exchangers according to the present invention.

Figure 6 is a block diagram showing the main portion of the automatic brazing device for heat exchangers according to the present invention transfer state of the torch.

7 is a configuration diagram showing a state of use of the automatic brazing apparatus for heat exchangers according to the present invention.

* Description of the symbols for the main parts of the drawings *

100: brazing device 110: body portion

111: body 112: Shanghai Songji Branch

113: left and right feed guide 114: side frame

115: side guide 116: upper frame

117: Shanghai Songbol District 120: Transfer section

121: Shanghai Song 122

123: Shanghai Song motor 124: up and down power transmission unit

125: left and right transfer section 126: left and right transfer bolt

127: left and right feed motor 128: left and right power transmission unit

130: brazing and fixing 131: fixed body

132: guide groove 133: left and right feed support

134: front and rear transfer rail 135: front and rear transfer guide

136: before and after transfer unit 137: before and after transfer bolt

138: forward and backward transfer motor 139: forward and backward power transmission unit

140: brazing part 141: brazing body

142: front and rear transfer support 143: filler material supply motor

144: Yongjae supply roller 145: Yongjae supply port

146: rotating part 146a: rotating shaft

146b: rotating motor 146c: rotating power transmission unit

147: gas supply block 150: torch

151: tochigo fixing body 152: torch

153: transfer guide 154: transfer fixture

155: transfer cylinder 156: tochigo ball

157: gas supply pipe 158: vibration motor

160 control unit 161 central control operation unit

162: gas control unit 163: temperature sensor

164 flame detection sensor

Claims (6)

In the brazing device for automatically joining the tubes of the heat exchanger, The brazing device forms a left and right transfer guide to the other side of the body having a shanghai transport support for supporting the shanghai song on one side, and forms a side frame for supporting while supporting both sides of the body with a side guide, on the top of the side frame Body portion forming the upper frame, A conveying part coupled to the shanghai conveying part of the body to form a shanghai conveying part which operates up and down, and forming a left and right conveying part on the other side of the body; The left and right transfer support unit coupled to the left and right transfer unit to the left and right transfer unit to the fixed body coupled to the left and right transfer guide to the left and right transfer guide, and the front and rear transfer unit at the top of the front and rear transfer rail provided with the front and rear transfer guide to the upper part of the fixed body. With the brazing high government formed, Forming the filler metal supply roller for supplying the filler metal by the drive of the filler metal supply motor to both sides of the brazing body having a front and rear conveying portion coupled to the front and rear conveying portion of the fixed body of the brazing fixing part, and forms a rotating part for rotating to the center of the fixed body And a brazing part formed with a gas supply block for supplying gas to one side of the fixed body; A torch portion having a torch fixing body having a torch installed on the other side of the brazing body of the brazing portion; And a control unit which forms a central control operation unit for controlling the gas of the gas control supply unit connected to the gas supply block while controlling the operation to one side of the body unit. The method according to claim 1, The conveying unit is screwed into the Shanghai Songbolt supported by the Shanghai Songbol support formed in the center of the upper frame of the body to the Shanghai Song support, and Shanghai Song motor coupled to the Shanghai Song motor and up and down power transmission unit to rotate the Shanghai Song Bolt Forming, on the other side of the body of the automatic brazing device for heat exchanger, characterized in that configured to form the left and right transfer bolt to rotate by combining the left and right transfer bolts with the left and right power transmission unit to the left and right transfer motor. The method according to claim 1, The front and rear conveying part of the brazing fixing part is screwed into the front and rear conveying support of the brazing body by screwing the front and rear conveying bolt formed by combining with the front and rear conveying motor as the front and rear power transmitting part on the upper part of the front and rear conveying rail, and the front and rear conveying bolt is rotated by the driving of the front and rear conveying motor. Automatic brazing device for heat exchanger, characterized in that configured to transfer the brazing body back and forth while. The method according to claim 1, The rotating part of the brazing part forms a rotating shaft at the center of the brazing body, and rotates the brazing body by driving the rotating motor connected to the rotating power transmission unit on the upper part of the rotating shaft to be configured to rotate by the driving of the rotating motor during the brazing operation. An automatic brazing device for a heat exchanger. The method according to claim 1, The torch part is guided to the other side of the torch fixing body to form a transfer fixture which is guided up and down by the transfer cylinder, and forms a torch on both sides of the torch fixture to the bottom of the transfer fixture to heat the inside and outside of the pipe to be joined. It is formed to connect the gas supply pipe to the gas supply block on both sides so as to form a vibration motor in the center of the torch fixing body to prevent the attachment of the filler metal by vibration during the brazing operation, characterized in that the automatic brazing device for heat exchangers . The method according to claim 1, The control unit controls the operation by the central control operation unit for controlling the operation in accordance with the position and the position of the heat exchanger, and sends a detection signal of the flame sensor to detect the temperature and flame to detect the temperature to one side of the torch unit An automatic brazing device for a heat exchanger, characterized in that configured to control the gas supply amount of the gas control supply portion while checking the brazing temperature and the flame state.

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