Welding machining device for exhaust copper pipe

Abstract

The invention discloses a welding machining device for an exhaust copper pipe, and relates to the technical field of welding, the welding machining device comprises a machining table and a supporting frame, and the supporting frame is fixedly mounted at the top of the machining table; the connecting frame is fixedly mounted on the surface of the supporting frame; the electric telescopic rod is fixedly mounted at the top of the processing table; the rotating shaft is fixedly installed at the output end of the electric telescopic rod, and the electric telescopic rod is used for driving the rotating shaft to stretch out and draw back; the copper pipe clamping device is fixedly mounted at the output end of the rotating shaft, and the copper pipe clamping device is used for clamping a copper pipe; and the driving motor is fixedly installed at the top of the machining table, and the situation that the end, away from the copper pipe clamping device, of the copper pipe inclines downwards, consequently, butt joint of the copper pipe and the short pipe is not accurate, deviation is generated in the follow-up welding process, and the welding effect is affected is prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of welding, and particularly to a welding processing device for exhaust copper tubes. Background Art

[0002] Welding processing devices for exhaust copper tubes are usually used to weld copper tubes to ensure the stability and durability of the exhaust systems in equipment such as automobiles, air conditioners, and water heaters. For the welding of copper tubes, argon arc welding or welding combination techniques are usually adopted.

[0003] A patent with the patent announcement number CN214721923U relates to a welding processing device for exhaust copper tubes, including a welding housing. First L-shaped plates are fixedly installed on both sides of the welding housing, and a first automatic telescopic rod is fixedly installed on the top of the first L-shaped plates. During rotation, when the first automatic telescopic rod is adjusted to a suitable height by debugging, then the third automatic telescopic rod extends to approach the copper tube. At the same time, by extending the fourth automatic telescopic rod, the claws on the outer surface of the fourth automatic telescopic rod are opened. Then, when the claws extend to the surface of the copper tube, the fourth automatic telescopic rod is contracted to drive the claws to grab and fix. Then, the first motor drives the first gear fixedly installed on its output end to rotate, thereby driving the first driven gear meshed with it, so that the third automatic telescopic rod fixedly installed with the first driven gear drives the fourth automatic telescopic rod and the claws to rotate, so as to flip the copper tube for uniform welding.

[0004] In the above patent, the first motor drives the first gear fixedly installed on its output end to rotate, thereby driving the first driven gear meshed with it, so that the third automatic telescopic rod fixedly installed with the first driven gear drives the fourth automatic telescopic rod and the claws to rotate, so as to flip the copper tube for uniform welding. However, during the butt joint process of the copper tubes, the lack of support at the bottom of the copper tubes may cause the copper tubes to face downward during butt joint, resulting in butt joint misalignment and affecting the welding accuracy. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a welding processing device for exhaust copper tubes, which solves the problems raised in the above background art.

[0006] To achieve the above object, the present invention is realized through the following technical solutions: A welding and processing device for exhaust copper pipes, comprising: a processing table, a support frame, the support frame is fixedly installed on the top of the processing table; a connecting frame, the connecting frame is fixedly installed on the surface of the support frame; an electric telescopic rod, the electric telescopic rod is fixedly installed on the top of the processing table; a rotating shaft, the rotating shaft is fixedly installed at the output end of the electric telescopic rod, and the electric telescopic rod is used to drive the rotating shaft to extend and retract; a copper pipe clamping device, the copper pipe clamping device is fixedly installed at the output end of the rotating shaft, and the copper pipe clamping device is used to clamp the copper pipe; a driving motor, the driving motor is fixedly installed on the top of the processing table; a cylinder, the cylinder is fixedly installed at the output end of the driving motor; a welding device is fixedly installed on the inner top wall of the connecting frame, an L-shaped pulley frame is fixedly installed at the output end of the electric telescopic rod, a sliding plate is slidably installed on the inner wall of the processing table, a pulley is rotatably installed on the inner wall of the sliding plate, and a trapezoidal plate is fixedly installed on the surface of the sliding plate. By placing the copper pipe into the copper pipe clamping device and at the same time placing the short pipe into the cylinder, then starting the electric telescopic rod to move towards the direction close to the cylinder, the movement of the electric telescopic rod towards the direction close to the cylinder will drive the rotating shaft and the copper pipe clamping device to move towards the direction close to the cylinder, so that the copper pipe and the short pipe are butted against each other.

[0007] According to the above technical solution, a first spring is provided between the processing table and the sliding plate. When the trapezoidal plate is separated from the L-shaped pulley frame, the elastic force of the first spring itself will drive the sliding plate to reset, and the pulley is arranged on the left side of the trapezoidal plate.

[0008] According to the above technical solution, an anti-warping device for preventing the copper pipe from warping and a protection device for protecting the operator are provided on the support frame. The anti-warping device includes a rack, a gear, a connecting plate and a sliding baffle. The movement of the L-shaped pulley frame towards the direction close to the cylinder drives the rack to move towards the direction close to the cylinder. The movement of the rack towards the direction close to the cylinder will drive the connecting plate to move towards the direction close to the cylinder. The movement of the connecting plate towards the direction close to the cylinder will push the sliding baffle to move towards the direction close to the cylinder. The rack is fixedly installed on the surface of the L-shaped pulley frame, the gear is rotatably installed inside the processing table, the connecting plate is fixedly installed on the surface of the rack, a leakage groove is opened on the top of the processing table, the sliding baffle is slidably installed on the inner top wall of the leakage groove, and the rack and the gear are meshed on the surface.

[0009] According to the above technical solution, a toothed plate is slidably installed at the top of the inner wall of the processing table. The toothed plate meshes with the surface of the gear. An L-shaped rod is fixedly installed at the top of the toothed plate. A sliding seat is fixedly installed on the surface of the L-shaped rod. A sliding frame is fixedly installed at the top of the sliding seat. The sliding frame is slidably installed inside the connecting frame. A hinge plate is rotatably installed inside the sliding frame. A slider is slidably installed inside the connecting frame. One end of the hinge plate away from the sliding frame is rotatably installed inside the slider. A pulley seat is fixedly installed at the bottom of the slider. When the sliding frame moves towards the copper pipe, it will push the hinge plate towards the copper pipe. When the hinge plate moves towards the copper pipe, it will push the slider to slide obliquely along the connecting frame. The oblique sliding of the slider will drive the pulley seat to slide obliquely.

[0010] According to the above technical solution, a second spring is arranged between the sliding baffle and the leakage groove. When the sliding baffle disengages from the contact with the connecting plate, the elastic force of the second spring itself will drive the second spring to reset. A third spring is arranged between the sliding frame and the connecting frame. When the rack resets, the elastic force of the third spring itself will drive the sliding frame to reset. A fourth spring is arranged between the connecting frame and the slider. When the sliding frame resets, the slider will lose the extrusion and reset under the elastic force of the fourth spring itself.

[0011] According to the above technical solution, the protection device includes a U-shaped frame, a pulley rod, a blowing device and a trapezoidal slide plate. When the L-shaped rod moves towards the copper pipe, it will push the U-shaped frame towards the copper pipe. When the U-shaped frame moves towards the copper pipe, it will drive the pulley rod towards the copper pipe. When the pulley rod moves towards the copper pipe, it will disengage from the support of the trapezoidal slide plate. The U-shaped frame slidably penetrates the surface of the support frame. The pulley rod is fixedly installed on the surface of the U-shaped frame. The blowing device is fixedly installed on the surface of the support frame. The trapezoidal slide plate is slidably installed on the surface of the blowing device.

[0012] According to the above technical solution, a fixed rod is fixedly installed at the top of the pulley rod. A spiral ring is fixedly installed at the top of the fixed rod. A spiral rotating rod is rotatably installed inside the support frame. The spiral rotating rod is threadedly connected with the spiral ring. A protective cover is fixedly installed on the surface of the spiral rotating rod. When the spiral ring moves towards the copper pipe, it will push the spiral rotating rod to rotate downward. When the spiral rotating rod rotates downward, it will drive the protective cover to rotate downward.

[0013] According to the above technical solution, a fifth spring is arranged between the trapezoidal slide plate and the blowing device. When the pulley rod moves, the trapezoidal slide plate will lose the extrusion and reset under the elastic force of the fifth spring. A sixth spring is arranged between the U-shaped frame and the support frame. When the L-shaped rod resets, the U-shaped frame will lose the extrusion and reset under the elastic force of the sixth spring. A second torsion spring is arranged between the support frame and the spiral rotating rod. The spiral rotating rod is driven to reset by the second torsion spring.

[0014] The present invention provides a welding processing device for exhaust copper pipes. It has the following beneficial effects: (1) In this invention, during welding, the rotating shaft and the driving motor drive the copper pipe clamping device and the cylinder to rotate synchronously. By rotating, the welding angle is adjusted to ensure a complete weld at the connection between the copper pipe and the short pipe. There is no need for manual adjustment, and the operation is convenient. When the trapezoidal plate moves upward, it drives the sliding plate to move upward. When the sliding plate moves upward, it drives the pulley to move upward, and the pulley moving upward supports the bottom of the copper pipe, preventing the end of the copper pipe away from the copper pipe clamping device from tilting downward, which may cause inaccurate docking between the copper pipe and the short pipe, resulting in deviations during subsequent welding and affecting the welding effect.

[0015] (2) In this invention, when the sliding baffle returns to its position, it blocks the leakage groove, effectively preventing welding slag from splashing out to the surrounding environment, reducing potential hazards to workpieces, equipment, or operators. At the same time, when the hinged plate moves towards the copper pipe, it pushes the slider to slide obliquely along the connecting frame. The inclined sliding of the slider drives the pulley seat to slide obliquely, and the inclined sliding of the pulley seat presses against the copper pipe, preventing the copper pipe from warping, which may cause deviations between the copper pipe and the short pipe during processing and affect the processing effect.

[0016] (3) In this invention, when the trapezoidal slide plate moves downward, it disengages from blocking the air outlet of the air blowing device, enabling the air blowing device to blow air on the copper pipe during welding. Air blowing for cooling can help quickly remove heat, preventing the material from deforming due to excessive temperature differences during the cooling process. When the spiral ring moves towards the copper pipe, it pushes the spiral rod to rotate downward. The downward rotation of the spiral rod drives the protective cover to rotate downward, protecting the user during welding and preventing welding slag from splashing and causing injuries to the operator, thus eliminating potential safety hazards. Description of the Drawings

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the support frame structure of the present invention; Figure 3 It is a schematic sectional view of the processing table of the present invention; Figure 4 It is a schematic diagram of the L-shaped pulley frame and gear structure of the present invention; Figure 5 It is a schematic sectional view of the support frame of the present invention; Figure 6 It is a schematic sectional view of the protective cover of the present invention; Figure 7 It is a schematic diagram of the bottom structure of the processing table of the present invention.

[0018] In the figure: 1, processing table; 2, support frame; 21, connecting frame; 3, electric telescopic rod; 4, rotating shaft; 5, copper pipe clamping device; 6, driving motor; 7, cylinder; 8, welding equipment; 9, L-shaped pulley frame; 10, sliding plate; 11, pulley; 12, trapezoidal plate; 131, rack; 132, gear; 133, connecting plate; 134, sliding baffle; 135, toothed plate; 136, L-shaped rod; 137, sliding seat; 138, sliding frame; 139, hinged plate; 1310, slider; 1311, pulley seat; 141, U-shaped frame; 142, pulley rod; 143, air blowing equipment; 144, trapezoidal sliding plate; 145, fixed rod; 146, spiral ring; 147, spiral rod; 148, protective cover. Detailed implementation manners

[0019] 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1-4 , an embodiment of the present invention is: a welding processing device for exhaust copper pipes, including: a processing table 1, a support frame 2, and the support frame 2 is fixedly installed on the top of the processing table 1; a connecting frame 21, and the connecting frame 21 is fixedly installed on the surface of the support frame 2; an electric telescopic rod 3, and the electric telescopic rod 3 is fixedly installed on the top of the processing table 1; a rotating shaft 4, and the rotating shaft 4 is fixedly installed at the output end of the electric telescopic rod 3, and the electric telescopic rod 3 is used to drive the rotating shaft 4 to expand and contract; a copper pipe clamping device 5, and the copper pipe clamping device 5 is fixedly installed at the output end of the rotating shaft 4, and the copper pipe clamping device 5 is used to clamp the copper pipe; a driving motor 6, and the driving motor 6 is fixedly installed on the top of the processing table 1; a cylinder 7, and the cylinder 7 is fixedly installed at the output end of the driving motor 6; a welding equipment 8 is fixedly installed on the top inner wall of the connecting frame 21, an L-shaped pulley frame 9 is fixedly installed at the output end of the electric telescopic rod 3, a sliding plate 10 is slidably installed on the inner wall of the processing table 1, a pulley 11 is rotatably installed on the inner wall of the sliding plate 10, and a trapezoidal plate 12 is fixedly installed on the surface of the sliding plate 10 to prevent the end of the copper pipe away from the copper pipe clamping device 5 from tilting downward, resulting in inaccurate butt joint between the copper pipe and the short pipe, resulting in deviation during subsequent welding and affecting the welding effect.

[0021] A first spring is arranged between the processing table 1 and the sliding plate 10. When the trapezoidal plate 12 is separated from the L-shaped pulley frame 9, the elastic force of the first spring itself will drive the sliding plate 10 to reset, and the pulley 11 is arranged on the left side of the trapezoidal plate 12.

[0022] When this embodiment is working: the copper tube is placed in the copper tube clamping device 5, and the short tube is placed in the cylinder 7 at the same time, and then the electric telescopic rod 3 is started to move in the direction close to the cylinder 7. The movement of the electric telescopic rod 3 in the direction close to the cylinder 7 will drive the rotating shaft 4 and the copper tube clamping device 5 to move in the direction close to the cylinder 7, so that the copper tube and the short tube are butted together, and then the welding device 8 is started to weld the copper tube and the short tube. During the welding, the rotating shaft 4 and the driving motor 6 will drive the copper tube clamping device 5 and the cylinder 7 to rotate synchronously, and the welding angle is adjusted by rotation to make the connection between the copper tube and the short tube welded completely, without manual adjustment, and the operation is simple. Convenient, and at the same time, the output end of the electric telescopic rod 3 moves toward the direction close to the cylinder 7, which will drive the L-shaped pulley frame 9 to move toward the direction close to the cylinder 7. The L-shaped pulley frame 9 moves toward the direction close to the cylinder 7 and contacts the trapezoidal plate 12. The L-shaped pulley frame 9 pushes the trapezoidal plate 12 to move upward. The upward movement of the trapezoidal plate 12 will drive the sliding plate 10 to move upward. The upward movement of the sliding plate 10 will drive the pulley 11 to move upward. The upward movement of the pulley 11 will support the bottom of the copper tube to prevent the copper tube from tilting downward away from the end of the copper tube clamping device 5, resulting in inaccurate docking between the copper tube and the short tube, resulting in deviations in subsequent welding, affecting the welding effect.

[0023] See also Figures 1-7 On the basis of the above embodiment, in another embodiment of the present invention, an anti-warping device for preventing the copper tube from warping and a protective device for protecting the operator are provided on the support frame 2, and the anti-warping device includes a rack 131, a gear 132, a connecting plate 133 and a sliding baffle 134, the rack 131 is fixedly mounted on the surface of the L-shaped pulley frame 9, the gear 132 is rotatably mounted inside the processing table 1, the connecting plate 133 is fixedly mounted on the surface of the rack 131, a leakage groove is opened on the top of the processing table 1, and the sliding baffle 134 is slidably mounted on the top of the inner wall of the leakage groove, the rack 131 is meshed with the surface of the gear 132, and the sliding baffle 134 moves toward the direction close to the cylinder 7 to break away from the sealing of the leakage groove, so that the welding slag during welding can be discharged through the leakage groove, and when the welding is completed, the sliding baffle 134 is reset to block the leakage groove, which can effectively prevent the welding slag from continuing to splash into the surrounding environment and reduce the potential harm to the workpiece, equipment or operator.

[0024] A toothed plate 135 is slidably mounted on the top of the inner wall of the processing table 1, and the toothed plate 135 meshes with the surface of the gear 132. An L-shaped rod 136 is fixedly mounted on the top of the toothed plate 135, and a sliding seat 137 is fixedly mounted on the surface of the L-shaped rod 136. A sliding frame 138 is fixedly mounted on the top of the sliding seat 137. The sliding frame 138 is slidably mounted on the inner wall of the connecting frame 21, and a hinged plate 139 is rotatably mounted on the inner wall of the sliding frame 138. A slider 1310 is slidably mounted on the inner wall of the connecting frame 21, and one end of the hinged plate 139 away from the sliding frame 138 is rotatably mounted on the inner wall of the slider 1310, and a pulley seat 1311 is fixedly mounted on the bottom of the slider 1310. The copper tube will be held against the inclined sliding of the pulley seat 1311 to prevent the copper tube from tilting, resulting in a deviation between the copper tube and the short tube during processing, affecting the processing effect.

[0025] A No. 2 spring is arranged between the sliding baffle 134 and the leakage groove. When the sliding baffle 134 is out of contact with the connecting plate 133, the elastic force of the No. 2 spring itself will drive the No. 2 spring to reset. A No. 3 spring is arranged between the sliding frame 138 and the connecting frame 21. When the rack 131 is reset, the elastic force of the No. 3 spring itself will drive the sliding frame 138 to reset. A No. 4 spring is arranged between the connecting frame 21 and the slider 1310. When the sliding frame 138 is reset, the slider 1310 loses extrusion and will reset under the elastic force of the No. 4 spring itself.

[0026] The protective device includes a U-shaped frame 141, a pulley rod 142, a blowing device 143 and a trapezoidal slide 144. The U-shaped frame 141 slides through the surface of the support frame 2, the pulley rod 142 is fixedly installed on the surface of the U-shaped frame 141, the blowing device 143 is fixedly installed on the surface of the support frame 2, and the trapezoidal slide 144 is slidably installed on the surface of the blowing device 143. The trapezoidal slide 144 moves downward to free itself from obstruction to the air outlet of the blowing device 143, so that the blowing device 143 can blow air to the copper tube during the welding process. Blowing and cooling can help quickly take away heat and prevent deformation of the material due to excessive temperature difference during the cooling process.

[0027] A fixed rod 145 is fixedly installed on the top of the pulley rod 142, and a spiral ring 146 is fixedly installed on the top of the fixed rod 145. A spiral rotating rod 147 is rotatably installed on the inner wall of the support frame 2. The spiral rotating rod 147 is threadedly connected with the spiral ring 146. A protective cover 148 is fixedly installed on the surface of the spiral rotating rod 147. The protective cover 148 is rotated downward to protect the user, thereby preventing welding slag from splashing during welding, which may cause injury to the operator and pose a hidden danger.

[0028] A fifth spring is provided between the trapezoidal slide plate 144 and the air blowing device 143. After the pulley rod 142 moves, the trapezoidal slide plate 144 loses extrusion and will reset under the elastic force of the fifth spring. A sixth spring is provided between the U-shaped frame 141 and the support frame 2. After the L-shaped rod 136 resets, the U-shaped frame 141 loses extrusion and will reset under the elastic force of the sixth spring. A second torsion spring is provided between the support frame 2 and the screw rotating rod 147, and the screw rotating rod 147 is driven to reset by the second torsion spring.

[0029] When this embodiment works: the L-shaped pulley frame 9 moves towards the cylinder 7, driving the rack 131 to move towards the cylinder 7. The movement of the rack 131 towards the cylinder 7 drives the connecting plate 133 to move towards the cylinder 7. The movement of the connecting plate 133 towards the cylinder 7 pushes the sliding baffle 134 to move towards the cylinder 7. By moving the sliding baffle 134 towards the cylinder 7, the sealing of the leakage groove is released, enabling the welding slag to be discharged through the leakage groove during welding. When welding is completed, the reset of the sliding baffle 134 will block the leakage groove, effectively preventing the welding slag from splashing out to the surrounding environment, reducing potential hazards to workpieces, equipment, or operators. At the same time, the movement of the rack 131 towards the cylinder 7 pushes the gear 132 to rotate. The rotation of the gear 132 drives the toothed plate 135 to move towards the copper tube. The movement of the toothed plate 135 towards the copper tube drives the L-shaped rod 136 to move towards the copper tube. The movement of the L-shaped rod 136 towards the copper tube drives the sliding seat 137 and the sliding frame 138 to move towards the copper tube. The movement of the sliding frame 138 towards the copper tube pushes the hinged plate 139 to move towards the copper tube. The movement of the hinged plate 139 towards the copper tube pushes the slider 1310 to slide obliquely along the connecting frame 21. The oblique sliding of the slider 1310 drives the pulley seat 1311 to slide obliquely, and the oblique sliding of the pulley seat 1311 presses against the copper tube, preventing the copper tube from warping, which may cause deviation between the copper tube and the short tube during processing and affect the processing effect.

[0030] Moving the L-shaped rod 136 towards the copper tube pushes the U-shaped frame 141 towards the copper tube. Moving the U-shaped frame 141 towards the copper tube drives the pulley rod 142 towards the copper tube. Moving the pulley rod 142 towards the copper tube causes it to lose support for the trapezoidal slide plate 144, allowing the elastic force of the fifth spring to drive the trapezoidal slide plate 144 downward. Moving the trapezoidal slide plate 144 downward removes the blockage of the air outlet of the blowing device 143, enabling the blowing device 143 to blow air on the copper tube during welding. Blowing air for cooling helps quickly remove heat, preventing excessive temperature differences during the cooling process of the material and resulting in deformation. At the same time, moving the pulley rod 142 towards the copper tube drives the fixed rod 145 towards the copper tube. Moving the fixed rod 145 towards the copper tube drives the spiral ring 146 towards the copper tube. Moving the spiral ring 146 towards the copper tube pushes the spiral rotating rod 147 to rotate downward. Rotating the spiral rotating rod 147 downward drives the protective cover 148 to rotate downward, protecting the user during welding and preventing slag splashing during the welding process, which may cause injury to the operator and pose a potential hazard.

[0031] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding processing device for an exhaust copper pipe, a welding device for copper pipe welding, comprising: Processing table (1), characterized in that: Support frame (2), the support frame (2) is fixedly installed on the top of the processing table (1); Connecting frame (21), the connecting frame (21) is fixedly installed on the surface of the support frame (2); Electric telescopic rod (3), the electric telescopic rod (3) is fixedly installed on the top of the processing table (1); Rotating shaft (4), the rotating shaft (4) is fixedly installed at the output end of the electric telescopic rod (3), and the electric telescopic rod (3) is used to drive the rotating shaft (4) to stretch; Copper tube clamping device (5), the copper tube clamping device (5) is fixedly installed at the output end of the rotating shaft (4), and the copper tube clamping device (5) is used to clamp the copper tube; Drive motor (6), the drive motor (6) is fixedly installed on the top of the processing table (1); Cylinder (7), the cylinder (7) is fixedly installed at the output end of the drive motor (6); The welding equipment (8) is fixedly installed at the top of the inner wall of the connecting frame (21), the L-shaped pulley frame (9) is fixedly installed at the output end of the electric telescopic rod (3), the sliding plate (10) is slidably installed on the inner wall of the processing table (1), the pulley (11) is rotatably installed on the inner wall of the sliding plate (10), the trapezoidal plate (12) is fixedly installed on the surface of the sliding plate (10), and an anti-warping device for preventing the copper tube from warping and a protection device for protecting the operator are provided on the support frame (2).

2. The welding and processing device for an exhaust copper tube according to claim 1, characterized in that: A first spring is provided between the processing table (1) and the sliding plate (10), and the pulley (11) is arranged on the left side of the trapezoidal plate (12).

3. The welding and processing device for an exhaust copper tube according to claim 2, wherein: The anti-warping device includes a rack (131), a gear (132), a connecting plate (133) and a sliding baffle (134). The rack (131) is fixedly installed on the surface of the L-shaped pulley frame (9), the gear (132) is rotatably installed inside the processing table (1), the connecting plate (133) is fixedly installed on the surface of the rack (131), a leakage groove is opened at the top of the processing table (1), the sliding baffle (134) is slidably installed on the top of the inner wall of the leakage groove, and the rack (131) is meshed with the surface of the gear (132).

4. The welding and processing device for an exhaust copper tube according to claim 3, characterized in that: A toothed plate (135) is slidably installed on the top of the inner wall of the processing table (1), the toothed plate (135) is meshed with the surface of the gear (132), an L-shaped rod (136) is fixedly installed at the top of the toothed plate (135), a sliding seat (137) is fixedly installed on the surface of the L-shaped rod (136), a sliding frame (138) is fixedly installed on the top of the sliding seat (137), the sliding frame (138) is slidably installed on the inner wall of the connecting frame (21), a hinge plate (139) is rotatably installed on the inner wall of the sliding frame (138), a slider (1310) is slidably installed on the inner wall of the connecting frame (21), one end of the hinge plate (139) away from the sliding frame (138) is rotatably installed on the inner wall of the slider (1310), and a pulley seat (1311) is fixedly installed at the bottom of the slider (1310).

5. The welding and processing device for an exhaust copper tube according to claim 4, wherein: A second spring is provided between the sliding baffle (134) and the leakage groove, a third spring is provided between the sliding frame (138) and the connecting frame (21), and a fourth spring is provided between the connecting frame (21) and the slider (1310).

6. The welding and processing device for an exhaust copper pipe according to claim 5, characterized in that: The protection device includes a U-shaped frame (141), a pulley rod (142), a blowing device (143) and a trapezoidal slide plate (144). The U-shaped frame (141) slidably penetrates the surface of the support frame (2). The pulley rod (142) is fixedly installed on the surface of the U-shaped frame (141). The blowing device (143) is fixedly installed on the surface of the support frame (2). The trapezoidal slide plate (144) is slidably installed on the surface of the blowing device (143).

7. The welding and processing device for an exhaust copper pipe according to claim 6, characterized in that: A fixed rod (145) is fixedly installed at the top of the pulley rod (142). A spiral ring (146) is fixedly installed at the top of the fixed rod (145). A spiral rotating rod (147) is rotatably installed on the inner wall of the support frame (2). The spiral rotating rod (147) is threadedly connected to the spiral ring (146). A protective cover (148) is fixedly installed on the surface of the spiral rotating rod (147).

8. A welding and processing device for an exhaust copper tube according to claim 7, characterized in that: A fifth spring is provided between the trapezoidal slide plate (144) and the blowing device (143). A sixth spring is provided between the U-shaped frame (141) and the support frame (2). A second torsion spring is provided between the support frame (2) and the spiral rotating rod (147).

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