Welding device for evaporator copper pipe connector machining

Abstract

The invention discloses a welding device for evaporator copper pipe connector machining, and relates to the technical field of copper pipe welding. The welding device for evaporator copper pipe connector machining comprises a welding bin, an electric push rod is assembled at the top of the welding bin, and a welding head is assembled at the bottom of the electric push rod; and the power rod is driven by a servo motor and penetrates through the welding bin, and a fixing bin is fixedly connected to the side face of the power rod. According to the welding device for evaporator copper pipe connector machining, after a copper pipe is subjected to preliminary clamping operation and under the condition of rotary welding, a rotary disc, a torsional spring block, an extrusion block, a first hydraulic bin, a second hydraulic bin, a first hose, a first stress rod and a first spring are matched, so that a pressing rod moves towards the side face, extra force is applied to a clamping plate, and the clamping plate is clamped; and the clamping effect on the copper pipe is improved when the device carries out rotary welding, the copper pipe is prevented from deviating, and the welding effect of the device is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of copper pipe welding, and specifically to a welding device for processing the copper pipe interfaces of an evaporator. Background Art

[0002] The welding device for processing the copper pipe interfaces of an evaporator plays an important role in the manufacturing of refrigeration, air conditioning and other equipment. Due to its excellent thermal conductivity, copper pipes are widely used in these equipment, especially in the evaporator part. Welding, as one of the key processes for copper pipe interface processing, involves high-precision and high-quality welding techniques. The welding device for processing the copper pipe interfaces of an evaporator is required to have efficient, precise and reliable welding performance. The development of modern welding technology is advancing towards the direction of automation, high precision, low energy consumption and high efficiency. By optimizing the welding method, controlling the welding parameters and using new welding equipment, the welding quality of the copper pipe interfaces of the evaporator can be effectively improved to meet the strict requirements in industrial production.

[0003] Chinese Patent CN116441848B, authorized and announced on August 15, 2023, discloses a welding auxiliary device for the refrigeration copper pipes of a wine cabinet. Among them, it includes a base, and a rotary gripper one and a rotary gripper two are sequentially arranged on the upper end of the base from back to front. A chute is opened on the upper end surface of the base, and both the rotary gripper one and the rotary gripper two include movable seats.

[0004] In the above application document, a rotatable clamping device is used to rotate the copper pipe, and then a welding head is used to perform corresponding welding operations on the copper pipe interface. However, when the copper pipe is rotated rapidly by this device, there is a possibility that the copper pipe generates a certain angular deviation, thus affecting the welding effect of the device. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a welding device for processing the copper pipe interfaces of an evaporator, which solves the problems raised in the above background art. To achieve the above purposes, the present invention is realized through the following technical solutions: A welding device for processing the copper pipe interfaces of an evaporator, comprising: A welding chamber, an electric push rod is assembled on the top of the welding chamber, and a welding head is assembled at the bottom of the electric push rod; A power rod, which is driven by a servo motor and penetrates the welding chamber. A fixed chamber is fixedly connected to the side of the power rod, and a clamping plate is connected to the inner wall of the fixed chamber through an elastic telescopic rod; A turntable is fixedly connected to the outer side of the power rod. An extrusion block is rotatably connected to the outer side of the turntable through a torsion spring block. A first hydraulic chamber is assembled on the side of the welding chamber, and a second hydraulic chamber is assembled on the side of the clamping plate. A first stress rod is slidably connected to the side of the first hydraulic chamber, and a pressing rod is slidably connected to the side of the second hydraulic chamber. A transmission member for transmission is assembled between the first stress rod and the pressing rod. A cleaning assembly for cleaning welding slag is assembled inside the welding chamber, and an auxiliary cleaning assembly for improving the cleaning effect is assembled inside the welding chamber. Through the setting of the device, the clamping effect of the device on the copper pipe during rotary welding can be improved, the copper pipe can be prevented from shifting, and the welding effect of the device can be improved.

[0006] Preferably, the transmission member includes a first hose assembled between the first hydraulic chamber and the second hydraulic chamber, and a first spring is assembled on the side of the first stress rod.

[0007] Preferably, the first stress rod is located at the side position of the extrusion block and is in contact with the extrusion block.

[0008] Preferably, the pressing rod is located at the side position of the clamping plate and is in contact with the clamping plate.

[0009] Preferably, the cleaning assembly includes a first bevel gear assembled on the outer side of the power rod. A transmission rod is rotatably connected to the side of the welding chamber. A second bevel gear is fixedly connected to one end of the transmission rod, and a first sprocket is fixedly connected to the other end of the transmission rod. A chain is assembled on the outer side of the first sprocket. A fixed seat is assembled on the side of the welding chamber. A reciprocating lead screw is rotatably connected through the fixed seat. A second sprocket is fixedly connected to the side of the reciprocating lead screw. A sliding block is assembled on the outer side of the reciprocating lead screw through a thread. A cleaning brush is assembled on the side of the sliding block. Through the setting of the cleaning assembly, during the welding operation, the cleaning brush reciprocates to sweep the welding slag falling inside the welding chamber out of the opening on the side of the welding chamber, preventing a large amount of welding slag from accumulating and making the device easier to use.

[0010] Preferably, the second bevel gear is located at the side position of the first bevel gear and is in a meshing state with the first bevel gear.

[0011] Preferably, the end of the chain away from the first sprocket is assembled at the outer side position of the second sprocket.

[0012] Preferably, the sliding block is located inside the fixed seat and is in a sliding connection state with the fixed seat.

[0013] Preferably, the auxiliary cleaning component includes a third hydraulic chamber assembled at the bottom of the first hydraulic chamber. A connecting rod is slidably connected to the bottom of the third hydraulic chamber. A pressing plate is assembled at the bottom of the connecting rod. The top of the cleaning brush is connected to a stress plate through an elastic telescopic block. By providing the auxiliary cleaning component, an additional force can be applied to the cleaning brush during its use, thereby improving the cleaning effect of the cleaning brush.

[0014] Preferably, the stress plate is located at the bottom of the pressing plate and is in contact with the pressing plate.

[0015] The present invention provides a welding device for processing the copper tube interface of an evaporator. It has the following beneficial effects: (1) For the welding device for processing the copper tube interface of an evaporator, after initially clamping the copper tube and during rotational welding, in cooperation with the turntable, torsion spring block, extrusion block, first hydraulic chamber, second hydraulic chamber, first hose, stress rod one, and first spring, the pressing rod moves laterally, applying an additional force to the clamping plate, improving the clamping effect of the device on the copper tube during rotational welding, preventing the copper tube from shifting, and improving the welding effect of the device.

[0016] (2) For the welding device for processing the copper tube interface of an evaporator, when the power rod rotates, it drives the first bevel gear to rotate, causing the first bevel gear to drive the second bevel gear to rotate. In cooperation with the transmission rod, first sprocket, chain, fixed seat, reciprocating lead screw, second sprocket, and sliding block, during the welding operation, the cleaning brush moves reciprocally, sweeping the welding slag that has fallen into the welding chamber out of the opening on the side of the welding chamber, preventing a large accumulation of welding slag and making the device easier to use.

[0017] (3) For the welding device for processing the copper tube interface of an evaporator, when the stress rod one slides into the first hydraulic chamber and squeezes the hydraulic oil in the first hydraulic chamber, in cooperation with the third hydraulic chamber, connecting rod, pressing plate, elastic telescopic block, and stress plate, an additional force can be applied to the cleaning brush during its use, thereby improving the cleaning effect of the cleaning brush. Description of the Drawings

[0018] Figure 1 It is a three-dimensional structure schematic diagram of the overall appearance of the present invention; Figure 2 It is a three-dimensional structure schematic diagram of the overall cross-section of the present invention; Figure 3 It is a three-dimensional structure schematic diagram of another perspective cross-section of the present invention; Figure 4 It is a three-dimensional structure schematic diagram of some parts of the present invention; Figure 5 It is a three-dimensional structure schematic diagram of some parts of the present invention; Figure 63D structural schematic diagram of the cleaning component of the present invention; Figure 7 Another perspective 3D structural schematic diagram of the cleaning component of the present invention; Figure 8 3D structural schematic diagram of the auxiliary cleaning component of the present invention.

[0019] In the figure: 100, welding chamber; 200, electric push rod; 300, welding head; 400, power rod; 500, fixed chamber; 600, elastic telescopic rod; 700, clamping plate; 801, turntable; 802, torsion spring block; 803, extrusion block; 804, hydraulic chamber 1; 805, hydraulic chamber 2; 806, hose 1; 807, stress rod 1; 808, spring 1; 809, pressure rod; 900, cleaning component; 901, bevel gear 1; 902, transmission rod; 903, bevel gear 2; 904, sprocket 1; 905, chain; 906, fixed seat; 907, reciprocating lead screw; 908, sprocket 2; 909, sliding block; 910, cleaning brush; 1000, auxiliary cleaning component; 1001, hydraulic chamber 3; 1002, connecting rod; 1003, pressing plate; 1004, elastic telescopic block; 1005, stress plate. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0021] Embodiment 1, please refer to Figures 1-5 , a welding device for processing the copper tube interface of an evaporator, including: A welding chamber 100, an electric push rod 200 is assembled on the top of the welding chamber 100, and a welding head 300 is assembled at the bottom of the electric push rod 200; A power rod 400, the power rod 400 is driven by a servo motor and penetrates through the welding chamber 100. A fixed chamber 500 is fixedly connected to the side of the power rod 400, and a clamping plate 700 is connected to the inner wall of the fixed chamber 500 through an elastic telescopic rod 600. Open the welding chamber 100, place the copper tube of the evaporator to be welded between the clamping plates 700 in the welding chamber 100, perform a preliminary clamping operation on the copper tube, start the electric push rod 200, drive the welding head 300 driven by the electric push rod 200 to move downward, the welding head 300 moves to the position where welding is required, enable the welding head 300 to perform corresponding welding operations, and then start the servo motor to Figure 4As shown in the figure, the driving force rod 400 driven by the servo motor rotates clockwise, so that the power rod 400 drives the elastic telescopic rod 600 to rotate through the fixed bin 500, so that the elastic telescopic rod 600 drives the copper tube to rotate clockwise through the clamping plate 700, so as to perform the rotational welding operation; A turntable 801 is fixedly connected to the outer side of the power rod 400, and an extrusion block 803 is rotatably connected to the outer side of the turntable 801 through a torsion spring block 802. When the power rod 400 rotates clockwise, it can drive the turntable 801 assembled on its outer side to rotate, so that the turntable 801 drives the extrusion block 803 to perform a revolution through the torsion spring block 802.

[0022] A hydraulic bin 804 is assembled on the side of the welding bin 100, a hydraulic bin 805 is assembled on the side of the clamping plate 700, a force receiving rod 807 is slidably connected to the side of the hydraulic bin 804, the force receiving rod 807 is located at the side position of the extrusion block 803 and is in contact with the extrusion block 803, a pressure rod 809 is slidably connected to the side of the hydraulic bin 805, the pressure rod 809 is located at the side position of the clamping plate 700 and is in contact with the clamping plate 700. When the extrusion block 803 rotates to the position of the force receiving rod 807, it can squeeze the force receiving rod 807, and at this time, the extrusion block 803 is restricted by the turntable 801 and cannot rotate around the torsion spring block 802 as the axis, so that the extrusion block 803 drives the force receiving rod 807 to move, and the force receiving rod 807 slides into the hydraulic bin 804, so as to squeeze the oil in the hydraulic bin 804, so that the oil moves into the hose 806, and the oil stored in the hose 806 is squeezed and moves into the hydraulic bin 805.

[0023] A transmission part for transmission is assembled between the force receiving rod 807 and the pressure rod 809. The transmission part includes a hose 806 assembled between the hydraulic bin 804 and the hydraulic bin 805, and a spring 808 is assembled on the side of the force receiving rod 807. When the oil stored in the hose 806 moves into the hydraulic bin 805, the oil stored in the hydraulic bin 805 moves towards the pressure rod 809 and drives the pressure rod 809 to move laterally, applying an additional force to the clamping plate 700. The clamping effect on the copper tube during rotational welding of the device is improved, the copper tube is prevented from shifting, and the welding effect of the device is improved.

[0024] After the welding operation is completed, start the servo motor to Figure 4As shown in [Figure], drive the power rod 400 driven by the servo motor to rotate counterclockwise. At this time, the power rod 400 drives the extrusion block 803 to rotate counterclockwise through the torsion spring block 802. Also, because the torsion force of the torsion spring block 802 is less than the elastic force of the first spring 808, the extrusion block 803 is extruded by the first force rod 807 and rotates around the torsion spring block 802 as the axis, thus avoiding the first force rod 807. At this time, the first force rod 807 can no longer move under the action of the extrusion block 803. Similarly, the pressure rod 809 returns to its initial state. This facilitates the next activation of the device.

[0025] A cleaning component 900 for cleaning welding slag is assembled inside the welding chamber 100, and an auxiliary cleaning component 1000 for improving the cleaning effect is assembled inside the welding chamber 100.

[0026] During use, open the welding chamber 100, place the evaporator copper tube to be welded between the clamping plates 700 inside the welding chamber 100, perform a preliminary clamping operation on the copper tube, start the electric push rod 200, drive the welding head 300 driven by the electric push rod 200 to move downward. The welding head 300 moves to the welding position required, activate the welding head 300 to perform the corresponding welding operation, and then start the servo motor to Figure 4 As shown in [Figure], drive the power rod 400 driven by the servo motor to rotate clockwise, so that the power rod 400 drives the elastic telescopic rod 600 to rotate through the fixed chamber 500, and the elastic telescopic rod 600 drives the copper tube to rotate clockwise through the clamping plate 700. The power rod 400 in the clockwise rotation state then drives the turntable 801 assembled on its outer side to rotate, so that the turntable 801 drives the extrusion block 803 to revolve through the torsion spring block 802. When the extrusion block 803 rotates to the position of the first force rod 807, it can extrude the first force rod 807. And at this time, the extrusion block 803 is restricted by the turntable 801 and cannot rotate around the torsion spring block 802 as the axis. Thus, the extrusion block 803 drives the first force rod 807 to move. The first force rod 807 slides into the first hydraulic chamber 804, which can extrude the oil in the first hydraulic chamber 804, so that the oil moves into the first hose 806. The oil stored in the first hose 806 is extruded and moves into the second hydraulic chamber 805, so that the oil stored in the second hydraulic chamber 805 moves towards the pressure rod 809 and drives the pressure rod 809 to move sideways, applying an additional force to the clamping plate 700. After the welding operation is completed, start the servo motor to Figure 4As shown in the figure, the power rod 400 driven by the servo motor is driven to rotate counterclockwise. At this time, the power rod 400 drives the extrusion block 803 to rotate counterclockwise through the torsion spring block 802. Because the torsion force of the torsion spring block 802 is less than the elastic force of the spring 808, the extrusion block 803 is squeezed by the force-bearing rod 807 and rotates around the torsion spring block 802 to avoid the force-bearing rod 807. At this time, the force-bearing rod 807 can no longer move under the action of the extrusion block 803. Similarly, the pressure rod 809 is restored to its initial state.

[0027] For example 2, please refer to Figures 1-7 On the basis of the first embodiment, the cleaning assembly 900 includes a bevel gear 1 901 mounted on the outside of the power rod 400, a transmission rod 902 is rotatably connected to the side of the welding chamber 100, one end of the transmission rod 902 is fixedly connected to a bevel gear 2 903, the bevel gear 2 903 is located at the side of the bevel gear 1 901, and is in meshing state with the bevel gear 1 901, and the other end of the transmission rod 902 is fixedly connected to a sprocket 1 904. When the power rod 400 rotates, the bevel gear 1 901 fixedly connected thereto can be driven to rotate, so that the bevel gear 1 901 drives the bevel gear 2 903 meshed therewith to rotate, and the bevel gear 2 903 drives the transmission rod 902 fixedly connected thereto to rotate, so that the transmission rod 902 drives the sprocket 1 904 fixedly connected thereto to rotate.

[0028] A chain 905 is mounted on the outer side of the sprocket wheel 1 904, and a fixed seat 906 is mounted on the side of the welding chamber 100. A reciprocating screw rod 907 is rotatably connected to the inner side of the fixed seat 906, and a sprocket wheel 2 908 is fixedly connected to the side of the reciprocating screw rod 907. The end of the chain 905 away from the sprocket wheel 1 904 is mounted on the outer side of the sprocket wheel 2 908. When the sprocket wheel 1 904 rotates, the chain 905 mounted on the outer side of the sprocket wheel 1 904 rotates, so that the sprocket wheel 2 908 connected to the sprocket wheel 1 904 through the chain 905 rotates, and the sprocket wheel 2 908 drives the reciprocating screw rod 907 fixedly connected to it to rotate.

[0029] The outer side of the reciprocating screw rod 907 is equipped with a sliding block 909 by setting a thread. The sliding block 909 is located inside the fixed seat 906 and is in a sliding connection with the fixed seat 906. The side of the sliding block 909 is equipped with a cleaning brush 910. When the reciprocating screw rod 907 rotates, the sliding block 909 assembled on the outer side of the reciprocating screw rod 907 by the thread is restricted by the fixed seat 906 slidably connected thereto, so that the sliding block 909 reciprocates in the horizontal direction, driving the cleaning brush 910 assembled on the side of the sliding block 909 to reciprocate, and the welding slag dropped inside the welding chamber 100 during the welding operation is swept out from the opening on the side of the welding chamber 100. Preventing a large amount of welding slag from accumulating makes the device easier to use.

[0030] During use, on the basis of Example 1, when the power rod 400 rotates, it can drive the bevel gear 1 901 fixedly connected thereto to rotate, so that the bevel gear 1 901 drives the bevel gear 2 903 meshing therewith to rotate, and the bevel gear 2 903 drives the transmission rod 902 fixedly connected thereto to rotate, so that the transmission rod 902 drives the sprocket 1 904 fixedly connected thereto to rotate, and cooperates with the chain 905 assembled on the outside of the sprocket 1 904 to make the sprocket 2 908 connected to the sprocket 1 904 through the chain 905 rotate, and the sprocket 2 908 drives the reciprocating screw rod 907 fixedly connected thereto to rotate, and the sliding block 909 assembled on the outside of the reciprocating screw rod 907 through a thread is restricted by the fixed seat 906 slidably connected thereto, so that the sliding block 909 reciprocates in the horizontal direction, driving the cleaning brush 910 assembled on the side of the sliding block 909 to reciprocate, and the welding slag dropped into the welding bin 100 during the welding operation is swept out from the opening on the side of the welding bin 100.

[0031] For example 3, please refer to Figures 1-8 On the basis of the first and second embodiments, the auxiliary cleaning assembly 1000 includes a hydraulic chamber 3 1001 assembled at the bottom of the hydraulic chamber 1 804, and the bottom of the hydraulic chamber 3 1001 is slidably connected with a connecting rod 1002. When the force-bearing rod 1 807 slides into the hydraulic chamber 1 804 and squeezes the oil in the hydraulic chamber 1 804, part of the oil in the hydraulic chamber 1 804 can move into the hydraulic chamber 3 1001, so that the oil in the hydraulic chamber 3 1001 moves to the side close to the connecting rod 1002 due to the squeezing.

[0032] The bottom of the connecting rod 1002 is equipped with a pressure plate 1003, and the top of the cleaning brush 910 is connected to a force plate 1005 by setting an elastic telescopic block 1004. The force plate 1005 is located at the bottom of the pressure plate 1003 and is in contact with the pressure plate 1003. When the oil in the hydraulic tank 1001 moves toward the side of the connecting rod 1002, the oil can squeeze the connecting rod 1002 and drive the connecting rod 1002 to move downward, so that the connecting rod 1002 drives the pressure plate 1003 fixedly connected thereto to move downward. In the process of moving downward, the pressure plate 1003 can squeeze the force plate 1005 and apply an additional force to the cleaning brush 910 through the force plate 1005 and the elastic telescopic block 1004. Thereby, the cleaning effect of the cleaning brush 910 is improved.

[0033] In use, based on the first and second embodiments, when the first stress rod 807 slides into the first hydraulic chamber 804 and squeezes the hydraulic fluid in the first hydraulic chamber 804, a part of the hydraulic fluid in the first hydraulic chamber 804 can move into the third hydraulic chamber 1001, causing the hydraulic fluid in the third hydraulic chamber 1001 to move towards the side close to the connecting rod 1002 due to the extrusion. The hydraulic fluid can then squeeze the connecting rod 1002 and drive the connecting rod 1002 to move downward, causing the connecting rod 1002 to drive the pressing plate 1003 fixedly connected thereto to move downward. During the downward movement of the pressing plate 1003, it can squeeze the stress plate 1005 and apply an additional force to the cleaning brush 910 through the stress plate 1005 and the elastic telescopic block 1004.

[0034] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, should be covered by the protection scope of the present invention.

Claims

1. A welding device for processing the copper tube interface of an evaporator, characterized in that, Including: A welding chamber (100), on the top of the welding chamber (100) is assembled an electric push rod (200), and at the bottom of the electric push rod (200) is assembled a welding head (300); A power rod (400), the power rod (400) is driven by a servo motor and penetrates through the welding chamber (100), on the side of the power rod (400) is fixedly connected a fixed chamber (500), and on the inner wall of the fixed chamber (500) is connected a clamping plate (700) through an elastic telescopic rod (600); On the outer side of the power rod (400) is fixedly connected a turntable (801), on the outer side of the turntable (801) is rotationally connected an extrusion block (803) through a torsion spring block (802), on the side of the welding chamber (100) is assembled a first hydraulic chamber (804), on the side of the clamping plate (700) is assembled a second hydraulic chamber (805), on the side of the first hydraulic chamber (804) is slidably connected a first stress rod (807), on the side of the second hydraulic chamber (805) is slidably connected a pressing rod (809), between the first stress rod (807) and the pressing rod (809) is assembled a transmission part for transmission, inside the welding chamber (100) is assembled a cleaning component (900) for cleaning welding slag, and inside the welding chamber (100) is assembled an auxiliary cleaning component (1000) for improving the cleaning effect.

2. The welding device for processing the copper tube interface of the evaporator according to claim 1, characterized in that: The transmission part includes a first hose (806) assembled between the first hydraulic chamber (804) and the second hydraulic chamber (805), and on the side of the first stress rod (807) is assembled a first spring (808).

3. A welding device for processing the copper tube interface of an evaporator according to claim 2, characterized in that: The first stress rod (807) is located at the side position of the extrusion block (803) and is in contact with the extrusion block (803).

4. A welding device for processing the copper tube interface of an evaporator according to claim 2, characterized in that: The pressing rod (809) is located at the side position of the clamping plate (700) and is in contact with the clamping plate (700).

5. A welding device for processing the copper tube interface of an evaporator according to claim 2, characterized in that: The cleaning component (900) includes a first bevel gear (901) assembled on the outer side of the power rod (400), on the side of the welding chamber (100) is rotationally connected a transmission rod (902), at one end of the transmission rod (902) is fixedly connected a second bevel gear (903), at the other end of the transmission rod (902) is fixedly connected a first sprocket (904), on the outer side of the first sprocket (904) is assembled a chain (905), on the side of the welding chamber (100) is assembled a fixed seat (906), inside the fixed seat (906) is rotationally connected a reciprocating lead screw (907) that penetrates through, on the side of the reciprocating lead screw (907) is fixedly connected a second sprocket (908), on the outer side of the reciprocating lead screw (907) is assembled a sliding block (909) through threading, and on the side of the sliding block (909) is assembled a cleaning brush (910).

6. The welding device for processing the copper tube interface of the evaporator according to claim 5, characterized in that: The second bevel gear (903) is located at the side position of the first bevel gear (901) and is in a meshing state with the first bevel gear (901).

7. A welding device for processing the copper tube interface of an evaporator according to claim 5, characterized in that: One end of the chain (905) away from the first sprocket (904) is assembled at the outer side position of the second sprocket (908).

8. A welding device for processing the copper tube interface of an evaporator according to claim 5, characterized in that: The sliding block (909) is located inside the fixed seat (906) and is in a sliding connection state with the fixed seat (906).

9. A welding device for processing the copper tube interface of an evaporator according to claim 5, characterized in that: The auxiliary cleaning component (1000) includes a hydraulic chamber three (1001) assembled at the bottom of the hydraulic chamber one (804). A connecting rod (1002) is slidably connected to the bottom of the hydraulic chamber three (1001). A pressing plate (1003) is assembled at the bottom of the connecting rod (1002). The top of the cleaning brush (910) is connected to a force-bearing plate (1005) by an elastic telescopic block (1004).

10. A welding device for processing the interface of an evaporator copper tube according to claim 9, characterized in that: The force-bearing plate (1005) is located at the bottom of the pressing plate (1003) and is in contact with the pressing plate (1003).

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