A welding processing device for exhaust copper pipes

Abstract

This invention discloses a welding processing device for exhaust copper pipes, relating to the field of welding technology. The device includes: a processing table; a support frame fixedly installed on the top of the processing table; a connecting frame fixedly installed on the surface of the support frame; an electric telescopic rod fixedly installed on the top of the processing table; a rotating shaft fixedly installed at the output end of the electric telescopic rod, which drives the rotating shaft to extend and retract; a copper pipe clamping device fixedly installed at the output end of the rotating shaft, used to clamp the copper pipe; and a drive motor fixedly installed on the top of the processing table to prevent the end of the copper pipe furthest from the copper pipe clamping device from tilting downwards, which could lead to inaccurate alignment between the copper pipe and the short pipe, causing deviations during subsequent welding and affecting the welding effect.

Description

Technical Field

[0001] This invention relates to the field of welding technology, specifically to a welding processing device for exhaust copper pipes. Background Technology

[0002] Welding equipment for exhaust copper pipes is typically used to weld copper pipes to ensure their stability and durability in exhaust systems of equipment such as automobiles, air conditioners, and water heaters. For welding copper pipes, argon arc welding or welding combination technology is usually used.

[0003] Patent publication number CN214721923U relates to a welding processing device for exhaust copper pipes, including a welding shell. First L-shaped plates are fixedly installed on both sides of the welding shell, and a first automatic telescopic rod is fixedly installed on the top of the first L-shaped plates. During rotation, the first automatic telescopic rod is adjusted to a suitable height, and then a third automatic telescopic rod extends closer to the copper pipe. Simultaneously, a fourth automatic telescopic rod extends, causing the claws on the outer surface of the fourth automatic telescopic rod to open. When the claws reach the surface of the copper pipe, the fourth automatic telescopic rod retracts, causing the claws to grip and fix the pipe. A first motor drives a first gear fixedly installed on its output end to rotate, thereby driving a first driven gear meshing with it. This causes the third automatic telescopic rod, fixedly installed with the first driven gear, to drive the fourth automatic telescopic rod and the claws to rotate, thus flipping the copper pipe and ensuring uniform welding.

[0004] In the aforementioned patent, a first motor drives a first gear fixedly installed on its output end to rotate, thereby driving a first driven gear meshing with it. This causes a third automatic telescopic rod fixedly installed with the first driven gear to drive a fourth automatic telescopic rod and a claw to rotate, thereby flipping the copper tube and making it welded evenly. However, during the copper tube docking process, the lack of support at the bottom of the copper tube may cause the copper tube to face downwards during docking, resulting in misalignment and affecting the accuracy of the welding. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a welding and processing apparatus for exhaust copper pipes, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a welding processing device for exhaust copper pipes, comprising: a processing table; a support frame, the support frame being fixedly installed on the top of the processing table; a connecting frame, the connecting frame being fixedly installed on the surface of the support frame; an electric telescopic rod, the electric telescopic rod being fixedly installed on the top of the processing table; a rotating shaft, the rotating shaft being fixedly installed at the output end of the electric telescopic rod, the electric telescopic rod being used to drive the rotating shaft to extend and retract; a copper pipe clamping device, the copper pipe clamping device being fixedly installed at the output end of the rotating shaft, the copper pipe clamping device being used to clamp copper pipes; and a drive motor, the drive motor being fixedly installed on the processing table. The workbench has a cylindrical top, which is fixedly installed at the output end of the drive motor. Welding equipment is fixedly installed on the top of the inner 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 workbench, and pulleys are rotatably installed on the inner wall of the sliding plate. A trapezoidal plate is fixedly installed on the surface of the sliding plate. By placing a copper pipe into the copper pipe clamping device and simultaneously placing a short pipe into the cylinder, the electric telescopic rod is then activated to move closer to the cylinder. This movement of the electric telescopic rod towards the cylinder drives the rotating shaft and the copper pipe clamping device to move closer to the cylinder, allowing the copper pipe and the short pipe to connect.

[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 will drive the sliding plate to reset. The pulley is located on the left side of the trapezoidal plate.

[0008] According to the above technical solution, the support frame is equipped with an anti-tilting device to prevent the copper pipe from warping and a protective device to protect the operator. The anti-tilting device includes a rack, a gear, a connecting plate, and a sliding baffle. The rack moves towards the cylinder via an L-shaped pulley frame, which in turn moves the connecting plate towards the cylinder. The connecting plate then moves the sliding baffle towards the cylinder. The rack is fixedly mounted on the surface of the L-shaped pulley frame, the gear is rotatably mounted inside the processing table, and the connecting plate is fixedly mounted on the surface of the rack. A groove is provided on the top of the processing table, and the sliding baffle is slidably mounted on the top of the inner wall of the groove. The rack meshes with the surface of the gear.

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

[0010] According to the above technical solution, a second spring is provided between the sliding baffle and the trough. When the sliding baffle disengages from the connecting plate, the elastic force of the second spring will cause the second spring to reset. A third spring is provided between the sliding frame and the connecting frame. When the rack resets, the elastic force of the third spring will cause the sliding frame to reset. A fourth spring is provided between the connecting frame and the slider. When the sliding frame resets, the slider will reset under the elastic force of the fourth spring after losing its compression.

[0011] According to the above technical solution, the protective device includes a U-shaped frame, a pulley rod, an air blowing device, and a trapezoidal sliding plate. The U-shaped frame is moved closer to the copper pipe by the L-shaped rod. The movement of the U-shaped frame closer to the copper pipe will drive the pulley rod to move closer to the copper pipe. The movement of the pulley rod closer to the copper pipe will disengage it from the support of the trapezoidal sliding plate. The U-shaped frame slides through the surface of the support frame. The pulley rod is fixedly installed on the surface of the U-shaped frame. The air blowing device is fixedly installed on the surface of the support frame. The trapezoidal sliding plate is slidably installed on the surface of the air blowing device.

[0012] According to the above technical solution, a fixed rod is fixedly installed on the top of the pulley rod, a spiral ring is fixedly installed on the top of the fixed rod, a spiral rotating rod is rotatably installed on the inner wall of the support frame, the spiral rotating rod is threadedly connected to the spiral ring, and a protective cover is fixedly installed on the surface of the spiral rotating rod. When the spiral ring moves towards the copper tube, it will push the spiral rotating rod to rotate downward, and the downward rotation of the spiral rotating rod will drive the protective cover to rotate downward.

[0013] According to the above technical solution, a No. 5 spring is provided between the trapezoidal slide and the air blowing device. When the pulley rod moves, the trapezoidal slide loses its compression and will reset under the elastic force of the No. 5 spring. A No. 6 spring is provided between the U-shaped frame and the support frame. When the L-shaped rod resets, the U-shaped frame loses its compression and will reset under the elastic force of the No. 6 spring. A No. 2 torsion spring is provided between the support frame and the spiral rotating rod. The spiral rotating rod is reset through the No. 2 torsion spring.

[0014] This invention provides a welding and processing apparatus for exhaust copper pipes. It has the following beneficial effects:

[0015] (1) In this invention, the rotating shaft and the drive motor will drive the copper tube clamping device and the cylinder to rotate synchronously during welding. The welding angle can be adjusted by rotating, so that the connection between the copper tube and the short tube can be welded completely without manual adjustment. The operation is convenient. The upward movement of the trapezoidal plate will drive the sliding plate to move upward, and the upward movement of the sliding plate will drive the pulley to move upward. The upward movement of the pulley will support the bottom of the copper tube, preventing the end of the copper tube away from the copper tube clamping device from tilting downward, which would cause the copper tube and the short tube to be inaccurately connected, resulting in deviation during subsequent welding and affecting the welding effect.

[0016] (2) The invention can block the trough by resetting the sliding baffle, which can effectively prevent the welding slag from continuing to splash into the surrounding environment and reduce potential hazards to workpieces, equipment or operators. At the same time, the hinge plate moves closer to the copper tube and pushes the slider to slide along the connecting frame. The sliding slider will cause the pulley seat to slide, and the sliding pulley seat will hold the copper tube in place to prevent the copper tube from tilting up, which would cause the copper tube to deviate from the short tube during processing and affect the processing effect.

[0017] (3) In this invention, the trapezoidal sliding plate moves downward to break free from the obstruction of the air outlet of the air blowing device, so that the air blowing device blows air onto the copper tube during the welding process. The air blowing and cooling can help to quickly remove heat and prevent the material from deforming due to excessive temperature difference during the cooling process. The spiral ring moves towards the copper tube and pushes the spiral rod to rotate downward. The downward rotation of the spiral rod will drive the protective cover to rotate downward. The downward rotation of the protective cover protects the user and prevents the welding slag from splashing during the welding process, which could cause injury to the operator and pose a hidden danger. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the support frame structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the processing table of the present invention;

[0021] Figure 4 This is a schematic diagram of the L-shaped pulley frame and gear structure of the present invention;

[0022] Figure 5 This is a schematic cross-sectional view of the support frame structure of the present invention;

[0023] Figure 6 This is a schematic diagram of the cross-sectional structure of the protective cover of the present invention;

[0024] Figure 7This is a schematic diagram of the bottom structure of the processing table of the present invention.

[0025] In the diagram: 1. Processing table; 2. Support frame; 21. Connecting frame; 3. Electric telescopic rod; 4. Rotating shaft; 5. Copper pipe clamping device; 6. Drive 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. Hinge plate; 1310. Slider; 1311. Pulley seat; 141. U-shaped frame; 142. Pulley rod; 143. Air blowing device; 144. Trapezoidal slide plate; 145. Fixed rod; 146. Spiral ring; 147. Spiral rotating rod; 148. Protective cover. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0027] Please see Figures 1-4 One embodiment of the present invention is: a welding processing device for exhaust copper pipes, comprising: a processing table 1, a support frame 2, the support frame 2 being fixedly installed on the top of the processing table 1; a connecting frame 21, the connecting frame 21 being fixedly installed on the surface of the support frame 2; an electric telescopic rod 3, the electric telescopic rod 3 being fixedly installed on the top of the processing table 1; a rotating shaft 4, the rotating shaft 4 being fixedly installed at the output end of the electric telescopic rod 3, the electric telescopic rod 3 being used to drive the rotating shaft 4 to extend and retract; a copper pipe clamping device 5, the copper pipe clamping device 5 being fixedly installed at the output end of the rotating shaft 4, the copper pipe clamping device 5 being used to clamp copper pipes; and a 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 on the output end of the drive motor 6; welding equipment 8 is fixedly installed on the top of the inner wall of the connecting frame 21; an L-shaped pulley frame 9 is fixedly installed on 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; a trapezoidal plate 12 is fixedly installed on the surface of the sliding plate 10 to prevent the end of the copper tube away from the copper tube clamping device 5 from tilting downwards, which would cause inaccurate connection between the copper tube and the short tube, resulting in deviation during subsequent welding and affecting the welding effect.

[0028] A first spring is provided between the processing table 1 and the sliding plate 10. When the trapezoidal plate 12 is disengaged from the L-shaped pulley frame 9, the elastic force of the first spring will drive the sliding plate 10 to reset. The pulley 11 is located on the left side of the trapezoidal plate 12.

[0029] In this embodiment, the copper pipe is placed into the copper pipe clamping device 5, and the short pipe is simultaneously placed into the cylinder 7. Then, the electric telescopic rod 3 is activated and moved closer to the cylinder 7. This movement of the electric telescopic rod 3 causes the rotating shaft 4 and the copper pipe clamping device 5 to move closer to the cylinder 7, allowing the copper pipe and the short pipe to connect. Then, the welding equipment 8 is activated to weld the copper pipe and the short pipe. Simultaneously, the rotating shaft 4 and the drive motor 6 drive the copper pipe clamping device 5 and the cylinder 7 to rotate synchronously. The welding angle is adjusted by rotation to ensure a complete weld at the connection between the copper pipe and the short pipe. No manual adjustment is required. Conveniently, the output end of the electric telescopic rod 3 moves towards the cylinder 7, which in turn moves the L-shaped pulley frame 9 towards the cylinder 7. The L-shaped pulley frame 9, moving towards the cylinder 7, contacts the trapezoidal plate 12. The L-shaped pulley frame 9 pushes the trapezoidal plate 12 upward. The upward movement of the trapezoidal plate 12 moves the sliding plate 10 upward. The upward movement of the sliding plate 10 moves the pulley 11 upward. The upward movement of the pulley 11 supports the bottom of the copper pipe, preventing the end of the copper pipe away from the copper pipe clamping device 5 from tilting downward, which would cause inaccurate connection between the copper pipe and the short pipe, resulting in deviation during subsequent welding and affecting the welding effect.

[0030] Please see Figures 1-7 Based on the above embodiments, in another embodiment of the present invention, the support frame 2 is provided with an anti-tilting device for preventing the copper pipe from warping and a protective device for protecting the operator. The anti-tilting 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, and the connecting plate 133 is fixedly installed on the surface of the rack 131. A trough is provided on the top of the processing table 1, and the sliding baffle 134 is slidably installed on the top of the inner wall of the trough. The rack 131 meshes with the surface of the gear 132. The sliding baffle 134 moves towards the cylinder 7 to disengage from the seal on the trough, allowing the welding slag to be discharged through the trough. When the welding is finished, the sliding baffle 134 resets and blocks the trough, which can effectively prevent the welding slag from continuing to splash into the surrounding environment and reduce potential hazards to the workpiece, equipment, or operator.

[0031] A toothed plate 135 is slidably installed on the top of the inner wall of the processing table 1. The toothed plate 135 meshes with the surface of the gear 132. An L-shaped rod 136 is fixedly installed on 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. The end of the hinge plate 139 away from the sliding frame 138 is rotatably installed on the inner wall of the slider 1310. A pulley seat 1311 is fixedly installed at the bottom of the slider 1310. The copper tube will be held in place by the tilting and sliding of the pulley seat 1311 to prevent the copper tube from tilting up, which would cause a deviation between the copper tube and the short tube during processing and affect the processing effect.

[0032] A second spring is installed between the sliding baffle 134 and the trough. When the sliding baffle 134 disengages from the connecting plate 133, the elastic force of the second spring will cause the second spring to reset. A third spring is installed between the sliding frame 138 and the connecting frame 21. When the rack 131 resets, the elastic force of the third spring will cause the sliding frame 138 to reset. A fourth spring is installed between the connecting frame 21 and the slider 1310. When the sliding frame 138 resets, the slider 1310 will reset under the elastic force of the fourth spring after losing pressure.

[0033] The protective device includes a U-shaped frame 141, a pulley rod 142, an air blowing device 143, and a trapezoidal sliding plate 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 air blowing device 143 is fixedly installed on the surface of the support frame 2. The trapezoidal sliding plate 144 slides on the surface of the air blowing device 143. When the trapezoidal sliding plate 144 moves downward, it will break free from the obstruction of the air outlet of the air blowing device 143, allowing the air blowing device 143 to blow air onto the copper tube during the welding process. Air blowing and cooling can help to quickly remove heat and prevent the material from deforming due to excessive temperature difference during the cooling process.

[0034] 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 to the spiral ring 146. A protective cover 148 is fixedly installed on the surface of the spiral rotating rod 147. The protective cover 148 rotates downward to protect the user and prevent welding slag from splashing during the welding process, which could cause injury to the operator and pose a potential hazard.

[0035] A No. 5 spring is installed between the trapezoidal slide plate 144 and the air blowing device 143. When the pulley rod 142 moves, the trapezoidal slide plate 144 will return to its original position under the elastic force of the No. 5 spring after it loses its compression. A No. 6 spring is installed between the U-shaped frame 141 and the support frame 2. When the L-shaped rod 136 returns to its original position, the U-shaped frame 141 will return to its original position under the elastic force of the No. 6 spring after it loses its compression. A No. 2 torsion spring is installed between the support frame 2 and the spiral rotating rod 147. The spiral rotating rod 147 will return to its original position through the No. 2 torsion spring.

[0036] In this embodiment, during operation: the L-shaped pulley frame 9 moves towards the cylinder 7, causing the rack 131 to move towards the cylinder 7. This movement of the rack 131 towards the cylinder 7 causes the connecting plate 133 to move towards the cylinder 7. The connecting plate 133's movement towards the cylinder 7 pushes the sliding baffle 134 towards the cylinder 7. The sliding baffle 134's movement towards the cylinder 7 disengages the seal on the trough, allowing welding slag to drain through. When welding is finished, the sliding baffle 134 resets, blocking the trough and effectively preventing welding slag from splashing into the surrounding environment, reducing potential hazards to workpieces, equipment, or operators. Simultaneously, the movement of the rack 131 towards the cylinder 7 pushes the gear 13... When gear 132 rotates, it causes gear plate 135 to move closer to the copper tube. The movement of gear plate 135 towards the copper tube causes L-shaped rod 136 to move closer to the copper tube. The movement of L-shaped rod 136 towards the copper tube causes sliding seat 137 and sliding frame 138 to move closer to the copper tube. The movement of sliding frame 138 towards the copper tube pushes hinge plate 139 towards the copper tube. The movement of hinge plate 139 towards the copper tube pushes slider 1310 to slide tilted along connecting frame 21. The tilted sliding of slider 1310 causes pulley seat 1311 to slide tilted. The tilted sliding of pulley seat 1311 will hold the copper tube in place to prevent it from tilting up, which would cause deviation between the copper tube and the short tube during processing and affect the processing effect.

[0037] The L-shaped rod 136 moves towards the copper pipe, pushing the U-shaped frame 141 towards the copper pipe. This movement of the U-shaped frame 141 towards the copper pipe causes the pulley rod 142 to move towards the copper pipe. The pulley rod 142 then disengages from the trapezoidal sliding plate 144, allowing the spring force of the No. 5 spring to move the trapezoidal sliding plate 144 downwards. This downward movement of the trapezoidal sliding plate 144 removes its obstruction of the air vent of the air blowing device 143, allowing the air blowing device 143 to blow air onto the copper pipe during welding. This air blowing helps to quickly remove heat and prevent... The material deforms due to excessive temperature difference during cooling. Simultaneously, the movement of pulley rod 142 towards the copper tube causes fixed rod 145 to move towards the copper tube. The movement of fixed rod 145 towards the copper tube causes spiral ring 146 to move towards the copper tube. The movement of spiral ring 146 towards the copper tube pushes spiral rod 147 to rotate downwards. The downward rotation of spiral rod 147 causes protective cover 148 to rotate downwards. The downward rotation of protective cover 148 protects the user from welding slag splashing during welding, which could cause injury to the operator and pose a potential hazard.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An apparatus for welding of exhaust copper tubes, for welding apparatus for copper tube welding, comprising: Processing platform (1), characterized by: Support frame (2), the support frame (2) is fixedly installed on the top of the processing platform (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 platform (1); Rotary shaft (4), the rotary shaft (4) is fixedly installed on the output end of the electric telescopic rod (3), and the electric telescopic rod (3) is used to drive the rotary shaft (4) to stretch out and draw back; Copper pipe clamping device (5), the copper pipe clamping device (5) is fixedly installed on the output end of the rotary shaft (4), and the copper pipe clamping device (5) is used to clamp the copper pipe; Driving motor (6), the driving motor (6) is fixedly installed on the top of the processing platform (1); Cylinder (7), the cylinder (7) is fixedly installed on the output end of the driving motor (6); The connecting frame (21) is fixedly installed on the inner wall of the top of the welding equipment (8), the output end of the electric telescopic rod (3) is fixedly installed on the L-shaped pulley frame (9), the inner wall of the processing platform (1) is slidably installed on the sliding plate (10), the inner wall of the sliding plate (10) is rotatably installed on the pulley (11), the surface of the sliding plate (10) is fixedly installed on the trapezoidal plate (12), and the support frame (2) is provided with an anti-warping device for preventing the copper pipe from warping and a protection device for protecting the operator; The anti-warping device comprises 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 in the processing platform (1), the connecting plate (133) is fixedly installed on the surface of the rack (131), a leakage groove is formed in the top of the processing platform (1), the sliding baffle (134) is slidably installed on the inner wall of the top of the leakage groove, and the rack (131) is engaged with the surface of the gear (132); The inner wall of the top of the processing platform (1) is slidably installed on the toothed plate (135), the toothed plate (135) is engaged with the surface of the gear (132), the top of the toothed plate (135) is fixedly installed on the L-shaped rod (136), the surface of the L-shaped rod (136) is fixedly installed on the sliding seat (137), the top of the sliding seat (137) is fixedly installed on the sliding frame (138), the sliding frame (138) is slidably installed on the inner wall of the connecting frame (21), the inner wall of the sliding frame (138) is rotatably installed on the hinged plate (139), the inner wall of the sliding block (1310) is rotatably installed on the end, away from the sliding frame (138), of the hinged plate (139), and the bottom of the sliding block (1310) is fixedly installed on the pulley seat (1311).

2. The apparatus for welding exhaust copper pipes according to claim 1, wherein: A spring is arranged between the processing platform (1) and the sliding plate (10), and the pulley (11) is arranged on the left side of the trapezoidal plate (12).

3. The apparatus for welding exhaust copper pipes according to claim 2, wherein: The sliding baffle (134) is provided with a second spring between the leakage groove, the sliding frame (138) is provided with a third spring between the connecting frame (21), and the connecting frame (21) is provided with a fourth spring between the sliding block (1310).

4. The apparatus for welding exhaust copper pipes according to claim 3, wherein: The protection device comprises a U-shaped frame (141), a pulley rod (142), a blowing device (143) and a trapezoidal slide plate (144), the U-shaped frame (141) is slid 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 plate (144) is slidably installed on the surface of the blowing device (143).

5. The apparatus for welding exhaust copper pipes according to claim 4, wherein: The top of the pulley rod (142) is fixedly installed with a fixed rod (145), the top of the fixed rod (145) is fixedly installed with a spiral ring (146), the inner wall of the support frame (2) is rotatably installed with a spiral rotating rod (147), the spiral rotating rod (147) is in threaded connection with the spiral ring (146), and the surface of the spiral rotating rod (147) is fixedly installed with a protective cover (148).

6. The apparatus for welding exhaust copper pipes according to claim 5, wherein: The trapezoidal slide plate (144) is provided with a fifth spring between the blowing device (143), the U-shaped frame (141) is provided with a sixth spring between the support frame (2), and the support frame (2) is provided with a second torsional spring between the spiral rotating rod (147).

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