A copper pipe welding apparatus and method

Abstract

This invention discloses a copper tube welding device and method, relating to the field of copper tube welding technology. The invention includes a main body with a heating component inside, a control component inside the left end of the main body, an auxiliary component on the right side of the main body, an electric slide rail on the back of the inner wall of the main body, a telescopic column inside the electric slide rail, a welding component on the front of the telescopic end of the telescopic column, a crack prevention device inside the main body, an anti-oxidation device above the crack prevention device, and an anti-adhesion device inside the anti-oxidation device. This invention enables a stabilizing ring to adaptively and stably clamp copper tubes of different diameters. The arc-shaped friction plate expands the clamping range of the stabilizing ring on the copper tube, thereby improving clamping force and stability, ensuring stability during the welding process and preventing cracks at the weld joint.

Description

Technical Field

[0001] This invention relates to the field of copper pipe welding technology, specifically to a copper pipe welding apparatus and method. Background Technology

[0002] Air conditioning copper pipes refer to the copper pipes that connect the indoor and outdoor units of an air conditioner. Air conditioning copper pipes are characterized by their hardness, resistance to corrosion, high temperature and high pressure resistance. Copper pipes are usually made of non-ferrous metals such as copper and aluminum. At the same time, the welding of the pipes is a key factor in determining the quality of the copper pipes.

[0003] Patent publication number CN109590639B discloses a copper pipe welding device, including a copper pipe and a connecting fitting. The copper pipe is sleeved on the connecting fitting, and a fastener is sleeved on the connecting fitting. A mounting base is fixedly connected to one side of the outer wall of the fastener, and a first spring is fixedly connected to the mounting base. This device can greatly increase the stability of the welding torch by adjusting it before welding. Due to the fixation of the connecting ring, the welding torch is easier to control when welding. By fixing the welding torch and flux to the same device, there is no need to constantly align the distance and angle when welding the joint. The fastener can be used for different connectors. Even if the operator is working at a height, the welding torch and the device for placing flux are fixed to a connector, and there is no need to hold the welding torch at all times, reducing the difficulty of operation.

[0004] However, the device still has shortcomings: while it can reduce the difficulty of operation during the welding process, it is difficult to stably clamp cylindrical air conditioning copper pipes of different diameters during the welding process, which increases the probability of the copper pipe shaking during welding. This may lead to cracks at the weld between the copper pipe and the connecting fittings, which to some extent reduces the welding quality. Summary of the Invention

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

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: a copper pipe welding device, comprising a device body, wherein a heating component is provided inside the device body, a control component is provided inside the left end of the device body, an auxiliary component is provided on the right side of the device body, an electric slide rail is provided on the back of the inner wall of the device body, a telescopic column is provided inside the electric slide rail, and a welding component is provided on the front of the telescopic end of the telescopic column.

[0007] The main body of the device is equipped with an anti-crack device, an anti-oxidation device is installed above the anti-crack device, and an anti-adhesion device is installed inside the anti-oxidation device.

[0008] The crack prevention device includes an electric turntable. The bottom of the electric turntable is rotatably mounted on the bottom of the inner wall of the device body. Several stabilizing rings are fixedly installed on the bottom of the inner wall of the electric turntable. Several limiting rubber blocks are equidistantly and slidably installed above the inside of the stabilizing rings via springs. The outer walls of the limiting rubber blocks movably penetrate the inside of the stabilizing rings. A connecting rod is fixedly installed at the bottom of the limiting rubber blocks. An arc-shaped friction plate is fixedly installed at the bottom of the connecting rod. A hollow arc plate is fixedly installed on the outer wall of the electric turntable. A retaining element is provided on the side of the hollow arc plate near the inner wall of the device body. A contact block is fixedly mounted with a heat-conducting plate on the side of the contact block near the inner wall of the device body. A circular plate is fixedly mounted on the side of the heat-conducting plate near the axis of the device body. The operator vertically inserts the copper tube into the stabilizing ring from top to bottom. During the insertion process, the bottom of the copper tube contacts the arc surface of the top of the limiting rubber block. The limiting rubber block generates a resisting force and retracts into the stabilizing ring to adapt to the circular diameter of the outer wall of the copper tube. At the same time, the limiting rubber block drives the connecting rod to move towards the inner wall of the stabilizing ring. The connecting rod pulls the arc-shaped friction plate to move synchronously, and the outer wall of the arc-shaped friction plate makes contact with the limiting rubber block. With the curved surface of the adhesive block fitting snugly, once the copper tube is clamped, the electric turntable is activated. The turntable drives the stabilizing ring to rotate clockwise, moving the copper tube closer to the welding assembly. The operator can then insert the copper tube into the next stabilizing ring. When the stabilizing ring reaches the appropriate welding position, the electric slide rail is activated. The slide rail drives the telescopic column to slide upwards and then reset. The telescopic column's extension end causes the welding assembly to extend horizontally forward, ensuring the copper tube is inside and initiating the welding process. Flux injected through the surface of the copper tube helps to firmly bond the copper tube to the connecting fitting. Close connection; when the electric turntable revolves, it drives the hollow arc plate to move synchronously. When the hollow arc plate revolves, it no longer contacts the abutment block. At this time, after losing the abutment force of the hollow arc plate, the heat-conducting plate slides horizontally towards the electric turntable with the help of the spring force. The heat-conducting plate drives the abutment block to move synchronously. Afterwards, when the hollow arc plate contacts the abutment block again, the heat-conducting plate resets. This process repeats, causing the heat-conducting plate to drive the circular plate to move synchronously. When the circular plate moves towards the electric turntable, its circular surface contacts and abuts the copper tube during the revolution. The copper tube undergoes slight deformation due to the contact with the circular plate.

[0009] According to the above technical solution, a number of stabilizing rings are equidistantly distributed at the bottom of the inner wall of the electric turntable, and the outer wall of the stabilizing rings is provided with a sliding groove. The outer wall of the limiting rubber block is designed with an arc surface. The bottom of the arc-shaped friction plate is in contact with the bottom of the inner wall of the electric turntable. The bottom of the heat-conducting plate is slidably installed on the bottom of the inner wall of the device body by a transverse spring.

[0010] According to the above technical solution, the anti-oxidation device includes a U-shaped plate, a transmission component, an air gun, an alarm component, a spiral hose, and a ventilator. The top of the U-shaped plate is hinged to the top of the inner wall of the device body by a torsion spring. Both sides of the transmission component are fixedly installed inside the U-shaped plate. The top of the air gun is inserted through and fixedly installed at the bottom of the transmission component. The bottom of the alarm component is fixedly installed at the top of the transmission component. The bottom of the spiral hose is inserted through and fixedly installed at the top edge of the transmission component. The bottom of the ventilator is fixedly installed at the top of the device body. When the heat-conducting plate slides towards the axis of the device body, it drives the U-shaped plate to move synchronously. At this time, the hinge shaft at the top of the U-shaped plate starts to rotate and drives the bottom of the U-shaped plate to slide downward along the outer wall of the heat-conducting plate. The U-shaped plate drives the transmission component to move in an arc trajectory. The transmission component drives the air gun and the alarm component to move synchronously. When the alarm component detects that the oxygen concentration in the processing area is too high, it issues an information alarm. The control component controls the ventilator to start through the intelligent module. The ventilator transmits suction to the air gun through the spiral hose. The air gun draws air from the processing area and discharges it through the ventilator.

[0011] According to the above technical solution, the bottom of the U-shaped plate is slidably connected to the heat-conducting plate on the side near the axis of the device body, the top of the spiral hose moves through the top of the device body, and the bottom of the ventilator fan is fixedly connected to the top of the spiral hose.

[0012] According to the above technical solution, the anti-oxidation device further includes a friction wheel, a rotating rod, several telescopic scrapers, and an arc-shaped protective plate. The friction wheel is rotatably mounted on the inner wall of the bottom of the U-shaped plate on the side away from the axis of the transmission component. The outer wall of the friction wheel is in contact with the outer wall of the heat-conducting plate. Both ends of the rotating rod are fixedly mounted on the side of the friction wheel near the axis of the transmission component. Several telescopic scrapers are equidistantly and fixedly mounted on the outer wall of the rotating rod. The arc-shaped protective plate is fixedly mounted between the outer wall of the telescopic scraper's telescopic end and the outer wall of the rotating rod. The U-shaped plate drives the friction wheel to slide downward along the outer wall of the heat-conducting plate and generates friction. The friction wheel starts to rotate by friction and drives the rotating rod to rotate. When the rotating rod rotates, it drives the telescopic scraper to rotate. When the telescopic scraper rotates, its own telescopic end arc surface no longer contacts the outer wall of the heat-conducting plate. At this time, the telescopic scraper extends away from its own fixed end under the elastic force of the arc-shaped protective plate's reset, and the arc-shaped protective plate deforms synchronously.

[0013] According to the above technical solution, the anti-adhesion device includes a transmission rod, a transmission belt, a reciprocating screw, and a round rod dust suppression screen. One end of the back of the transmission rod is inserted through and fixedly installed on the front of the rotating rod. The bottom inner wall of the transmission belt is driven and installed on the outer wall of the transmission rod. One end of the back of the reciprocating screw is inserted through and rotatably installed on the inner wall of the U-shaped plate. The round rod dust suppression screen is inserted through and movably installed on the outer wall of the reciprocating screw. When the rotating rod rotates, it drives the transmission rod to rotate. The transmission rod drives the reciprocating screw to rotate on the inner wall of the U-shaped plate through the transmission belt. When the reciprocating screw rotates, the reciprocating spiral groove on its outer wall restricts the built-in locking block of the round rod dust suppression screen, causing the round rod dust suppression screen to slide along the outer wall of the reciprocating screw towards the back of the device body and reset.

[0014] According to the above technical solution, the outer wall of one end of the reciprocating screw is connected to the inner wall of the top of the transmission belt, and the round rod dust suppression mesh plate is slidably connected to the inner wall of the U-shaped plate on the side near the main shaft of the device, and a spiral groove is opened inside the round rod dust suppression mesh plate.

[0015] According to the above technical solution, the anti-adhesion device further includes a support rod, a drying plate, a U-shaped frame, a horizontal plate, and an arc-shaped block. Both ends of the support rod are fixedly installed inside the circular groove of the round rod dust suppression mesh plate. The drying plate is internally connected to the outer wall of the support rod by a torsion spring, and contains desiccant. The top of the U-shaped frame is fixedly installed at one end of the back of the bottom of the U-shaped plate. The outer wall of the horizontal plate is fixedly installed inside the U-shaped frame. The top of the arc-shaped block is fixedly installed at the bottom of the horizontal plate. The arc surface of the arc-shaped block is located on the top movement trajectory of the drying plate. The round rod dust suppression mesh plate drives the support rod to move horizontally, and the support rod drives the drying plate to move synchronously. During the movement, the drying plate contacts the arc surface of the arc-shaped block at the bottom of the horizontal plate. At this time, the U-shaped frame limits and stabilizes the horizontal plate. At this time, the arc surface of the drying plate generates a rotational force by means of the arc surface of the arc-shaped block and the resistance. When the drying plate rotates along the outer wall of the support rod, it drives the desiccant particles inside to shake synchronously. Then the drying plate resets itself by the torsion spring. This process is repeated to make the desiccant particles flow and shake back and forth inside the drying plate.

[0016] A method for welding copper pipes includes the following steps:

[0017] S1: The staff vertically inserts the copper tube into the stabilizing ring from top to bottom. During the process of inserting the copper tube into the stabilizing ring, the bottom of the copper tube contacts the top arc surface of the limiting rubber block. The limiting rubber block generates a resistance force and shrinks into the stabilizing ring to adapt to the circular diameter of the outer wall of the copper tube.

[0018] S2: At the same time, the limiting rubber block drives the connecting rod to move closer to the inner wall of the stabilizing ring, and the connecting rod pulls the arc-shaped friction plate to move synchronously, and the outer wall of the arc-shaped friction plate fits with the arc surface of the limiting rubber block.

[0019] S3: After the copper tube is clamped, start the electric turntable. The electric turntable drives the stabilizing ring to rotate clockwise and moves the copper tube closer to the welding component. The staff can then put the copper tube into the next stabilizing ring.

[0020] S4: When the stabilizing ring revolves to the appropriate welding position, the electric slide rail is activated. The electric slide rail drives the telescopic column to slide upward and reset inside itself. The telescopic end of the telescopic column drives the welding assembly to extend horizontally forward to ensure that the copper tube is inside itself and the welding work begins. The flux injected through the surface of the copper tube promotes a tight connection between the copper tube and the connecting fitting.

[0021] This invention provides a copper tube welding apparatus and method. It has the following beneficial effects:

[0022] (1) The present invention, through the setting of the anti-crack device, through the cooperation of electric turntable, stabilizing ring, limiting rubber block, connecting rod, arc friction plate, hollow arc plate, contact block, heat conduction plate and round block plate, enables the stabilizing ring to adaptively and stably clamp copper tubes of different diameters. The arc friction plate expands the clamping range of the copper tube inside the stabilizing ring, thereby improving the clamping force and stability, ensuring the stability of the welding process and avoiding cracks at the weld. In addition, the electric turntable is different from the traditional hand-held welding method, reducing the risk of injury to workers while improving welding efficiency. In addition, it promotes the more uniform distribution of flux at the weld during the slight deformation of the copper tube, ensuring that the flux fills the weld evenly during the welding process. At the same time, the heat conduction plate conducts the heat emitted by the heating components inside the main body of the device, ensuring the temperature of the entire area inside the main body of the device is balanced, avoiding the risk of deformation and cracking at the weld due to uneven internal stress distribution caused by temperature difference in copper tubes and other components.

[0023] (2) By setting up an anti-oxidation device, the present invention effectively expands the monitoring range of the alarm component and improves the timeliness of the monitoring effect through the cooperation of a heat-conducting plate, a U-shaped plate, a transmission component, an air gun, an alarm component, a spiral hose, a ventilator, a friction wheel, a rotating rod, a telescopic scraper, and an arc-shaped protective plate. At the same time, the ventilator replaces the gas in the processing area in a timely manner, avoiding the interference of excessive oxygen content at high welding temperatures with the protective effect of inert gas on the weld, avoiding the reduction of the airtightness and mechanical properties of the weld by inert gas, thus preventing the formation of porosity, and avoiding the formation of copper oxide on copper pipe joints due to oxygen. At the same time, the arc-shaped protective plate enhances the contact tightness between the telescopic scraper and the heat-conducting plate, increases the scraping force of the telescopic scraper on the outer wall of the heat-conducting plate, ensures the cleanliness of the outer wall of the heat-conducting plate, prevents dirt from adhering to the outer wall of the heat-conducting plate, and continuously oxidizes the heat-conducting plate at high temperatures, thereby shortening its service life.

[0024] (3) The present invention, through the setting of the anti-adhesion device, through the cooperation of the rotating rod, transmission rod, transmission belt, reciprocating screw, round rod dust suppression mesh plate, support rod, drying plate, U-shaped frame, horizontal plate and arc block, causes the round rod dust suppression mesh plate to move in an arc trajectory while sliding horizontally, thereby expanding the range of motion of the round rod dust suppression mesh plate above the welding assembly. The round rod dust suppression mesh plate intercepts and adsorbs the micro dust particles floating in the working area, avoiding the particles from adhering to the welding point, causing uneven weld seams and thus reducing the welding strength; and avoiding the solidification and oxidation of desiccant particles inside the drying plate, avoiding the difficulty of timely dissipation of gas on the surface of the drying plate to equal amount and equivalent drying gas, avoiding the formation of water mist when the equipment is cold-started and the heat emitted by the heating assembly is counteracted, and avoiding the water mist from not drying and evaporating in time, thus contaminating the weld seam, causing the welding temperature to fluctuate and the weld seam surface to be too rough, reducing the quality of the finished product. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the entire invention;

[0026] Figure 2 This is a cross-sectional schematic diagram of the entire invention;

[0027] Figure 3 This is a schematic diagram of the crack prevention device of the present invention;

[0028] Figure 4 This is a cross-sectional schematic diagram of a portion of the crack prevention device of the present invention;

[0029] Figure 5 This is a schematic diagram of the anti-oxidation device of the present invention;

[0030] Figure 6 This is a bottom view schematic diagram of a portion of the anti-oxidation device of the present invention;

[0031] Figure 7 This is a schematic diagram of the anti-adhesion device of the present invention;

[0032] Figure 8 This is a schematic diagram of the anti-adhesion device of the present invention from the left side.

[0033] In the diagram: 1. Main body of the device; 2. Control components; 21. Auxiliary components; 3. Electric slide rail; 31. Telescopic column; 32. Welding components; 4. Crack prevention device; 41. Electric turntable; 42. Stabilizing ring; 43. Limiting rubber block; 44. Connecting rod; 45. Arc-shaped friction plate; 46. Hollow arc plate; 47. Contact block; 48. Heat-conducting plate; 49. Circular plate; 5. Anti-oxidation device; 51. U-shaped plate; 52. 53. Transmission component; 54. Air gun; 55. Alarm component; 56. Spiral hose; 57. Drainage fan; 58. Friction wheel; 59. Rotating rod; 50. Telescopic scraper; 510. Arc-shaped protective plate; 61. Anti-adhesion device; 62. Transmission rod; 63. Transmission belt; 64. Reciprocating screw; 65. Round rod dust suppression mesh plate; 66. Support rod; 67. Drying plate; 68. U-shaped frame; 69. Horizontal plate; 60. Arc-shaped block. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0035] Please see Figures 1-8 One embodiment of the present invention is: a copper pipe welding device, including a device body 1, and a heating component is provided inside the device body 1. A control component 2 is provided inside the left end of the device body 1, an auxiliary component 21 is provided on the right side of the device body 1, an electric slide rail 3 is provided on the back of the inner wall of the device body 1, a telescopic column 31 is provided inside the electric slide rail 3, and a welding component 32 is provided on the front of the telescopic end of the telescopic column 31.

[0036] The main body 1 of the device is equipped with an anti-crack device 4, an anti-oxidation device 5 is installed above the anti-crack device 4, and an anti-adhesion device 6 is installed inside the anti-oxidation device 5.

[0037] The anti-crack device 4 includes an electric turntable 41. The bottom of the electric turntable 41 is rotatably mounted on the bottom of the inner wall of the device body 1. Several stabilizing rings 42 are fixedly installed on the bottom of the inner wall of the electric turntable 41. Several limiting rubber blocks 43 are equidistantly and slidably installed on the upper part of the inner wall of the stabilizing rings 42 via springs. The outer walls of the limiting rubber blocks 43 move through the inner wall of the stabilizing rings 42. A connecting rod 44 is fixedly installed on the bottom of the limiting rubber blocks 43. An arc-shaped friction plate 45 is fixedly installed on the bottom of the connecting rod 44. A hollow arc plate 46 is fixedly installed on the outer wall of the electric turntable 41. An abutment block 47 is provided on the side of the hollow arc plate 46 near the inner wall of the device body 1. A heat-conducting plate 48 is fixedly installed on the side of the abutment block 47 near the inner wall of the device body 1. A round plate 49 is fixedly installed on the side of the heat-conducting plate 48 near the axis of the device body 1. Through the above cooperation, the stabilizing rings are stabilizing. 42 can adaptively and stably clamp copper tubes of different diameters. The arc-shaped friction plate 45 expands the clamping range of the copper tube inside the stabilizing ring 42, thereby improving the clamping force and stability, ensuring stability during the welding process and preventing cracks at the weld. In addition, the electric turntable 41 is different from the traditional hand-held welding method, reducing the risk of injury to workers while improving welding efficiency. Through the above combination, the flux is more evenly distributed at the weld during the slight deformation of the copper tube, ensuring that the flux fills the weld evenly during the welding process. At the same time, the heat-conducting plate 48 conducts heat dissipated by the heating components inside the main body 1, ensuring the temperature of the entire area inside the main body 1 is balanced, and avoiding the risk of deformation and cracking at the weld due to uneven internal stress distribution caused by temperature differences in copper tubes and other components.

[0038] Several stabilizing rings 42 are evenly distributed at the bottom of the inner wall of the electric turntable 41, and the outer wall of the stabilizing rings 42 is provided with a sliding groove. The outer wall of the limiting rubber block 43 is designed with an arc surface. The bottom of the arc-shaped friction plate 45 contacts the bottom of the inner wall of the electric turntable 41. The bottom of the heat-conducting plate 48 is slidably installed on the bottom of the inner wall of the device body 1 by a transverse spring.

[0039] During use, the operator vertically inserts the copper tube into the stabilizing ring 42 from top to bottom. As the copper tube is inserted, its bottom contacts the top arc surface of the limiting rubber block 43. The limiting rubber block 43 generates a resistance force, causing it to contract inwards to accommodate the circular diameter of the copper tube's outer wall. Simultaneously, the limiting rubber block 43 drives the connecting rod 44 to move closer to the inner wall of the stabilizing ring 42. The connecting rod 44 pulls the arc-shaped friction plate 45, which moves synchronously, and the outer wall of the arc-shaped friction plate 45 fits against the arc surface of the limiting rubber block 43. Once the copper tube is clamped, the electric turntable 41 is activated. The electric turntable 41 drives the stabilizing ring 42 to rotate clockwise, causing the copper tube to move closer to the welding assembly. The 32-directional movement allows the operator to insert a copper tube into the next stabilizing ring 42. When the stabilizing ring 42 revolves to a suitable welding position, the electric slide rail 3 is activated. The electric slide rail 3 drives the telescopic column 31 to slide upwards and reset within itself. The telescopic end of the telescopic column 31 drives the welding assembly 32 to extend horizontally forward, ensuring the copper tube is inside and welding begins. The flux injected through the surface of the copper tube promotes a tight connection between the copper tube and the connecting fitting. Through this coordination, the stabilizing ring 42 can adaptively and stably clamp copper tubes of different diameters. The arc-shaped friction plate 45 expands the clamping range of the copper tube inside the stabilizing ring 42, thereby... To improve clamping force and stability, ensuring stability during the welding process and preventing cracks at the weld joint, and to reduce the risk of worker injury while improving welding efficiency by using an electric turntable 41, which differs from traditional handheld welding methods; as the electric turntable 41 revolves, it drives the hollow arc plate 46 to move synchronously. When the hollow arc plate 46 no longer contacts the abutment block 47, the heat-conducting plate 48, having lost the abutment force of the hollow arc plate 46, slides horizontally towards the electric turntable 41 with the help of the spring force. The heat-conducting plate 48 drives the abutment block 47 to move synchronously. Afterwards, when the hollow arc plate 46 contacts the abutment block 47 again, the heat-conducting plate 48 returns to its original position. This process is repeated to promote heat conduction. Plate 48 drives the circular plate 49 to move synchronously. When the circular plate 49 moves towards the electric turntable 41, its circular surface contacts and abuts against the copper tube in the revolution process. The copper tube undergoes slight deformation due to the contact with the circular plate 49. Through the above cooperation, the flux is more evenly distributed at the welding point during the slight deformation of the copper tube, ensuring that the flux is evenly filled at the welding point during the welding process. At the same time, the heat conduction plate 48 conducts heat dissipated by the heating components inside the main body 1 of the device, ensuring the temperature of the entire area inside the main body 1 of the device is balanced, and avoiding the risk of deformation and cracking at the welding point due to uneven internal stress distribution caused by temperature difference in components such as copper tube.

[0040] Please see Figures 1-8 Based on the above embodiments, another embodiment of the present invention further includes an anti-oxidation device 5;

[0041] The anti-oxidation device 5 includes a U-shaped plate 51, a transmission component 52, an air gun 53, an alarm component 54, a spiral hose 55, and a ventilator 56. The top of the U-shaped plate 51 is hinged to the top of the inner wall of the device body 1 by a torsion spring. Both sides of the transmission component 52 are fixedly installed inside the U-shaped plate 51. The top of the air gun 53 is inserted through and fixedly installed at the bottom of the transmission component 52. The bottom of the alarm component 54 is fixedly installed at the top of the transmission component 52. The bottom of the spiral hose 55 is inserted through and fixedly installed at the top edge of the transmission component 52. The bottom of the ventilator 56 is fixedly installed at the top of the device body 1. Through the above coordination, the monitoring range of the alarm component 54 is effectively expanded, and the timeliness of the monitoring effect is improved. At the same time, the ventilator 56 replaces the gas in the processing area in a timely manner, avoiding the interference of excessive oxygen content under the high temperature of welding with the protective effect of inert gas on the weld, avoiding the reduction of the airtightness and mechanical properties of the weld by inert gas, thus preventing porosity, and preventing copper pipe joints from developing copper oxide due to oxygen.

[0042] The bottom of the U-shaped plate 51 is slidably connected to the heat-conducting plate 48 on the side near the axis of the device body 1, the top of the spiral hose 55 moves through the top of the device body 1, and the bottom of the ventilator 56 is fixedly connected to the top of the spiral hose 55.

[0043] The anti-oxidation device 5 also includes a friction wheel 57, a rotating rod 58, several telescopic scrapers 59, and an arc-shaped protective plate 510. The friction wheel 57 is rotatably mounted on the inner wall of the bottom of the U-shaped plate 51 on the side away from the axis of the transmission component 52. The outer wall of the friction wheel 57 is in contact with the outer wall of the heat-conducting plate 48. Both ends of the rotating rod 58 are fixedly mounted on the side of the friction wheel 57 near the axis of the transmission component 52. Several telescopic scrapers 59 are equidistantly and fixedly mounted on the outer wall of the rotating rod 58. The arc-shaped protective plate 510 is fixedly mounted between the outer wall of the telescopic end of the telescopic scraper 59 and the outer wall of the rotating rod 58. Through the above cooperation, the arc-shaped protective plate 510 enhances the contact tightness between the telescopic scraper 59 and the heat-conducting plate 48, improves the scraping force of the telescopic scraper 59 on the outer wall of the heat-conducting plate 48, ensures the cleanliness of the outer wall of the heat-conducting plate 48, prevents dirt from adhering to the outer wall of the heat-conducting plate 48, and continuously oxidizes the heat-conducting plate 48 at high temperature, thereby shortening its service life.

[0044] In use, when the heat-conducting plate 48 slides towards the axis of the main body 1, it drives the U-shaped plate 51 to move synchronously. At this time, the hinge shaft at the top of the U-shaped plate 51 begins to rotate and drives the bottom of the U-shaped plate 51 to slide downward along the outer wall of the heat-conducting plate 48. The U-shaped plate 51 drives the transmission component 52 to move in an arc trajectory. The transmission component 52 drives the air gun 53 and the alarm component 54 to move synchronously. When the alarm component 54 detects that the oxygen concentration in the processing area is too high, it issues an information alarm. The control component 2 controls the start of the evacuation fan 56 through the intelligent module. The evacuation fan 56 transmits suction to the air gun 53 through the spiral hose 55. The air gun 53 draws the air in the processing area and discharges it through the evacuation fan 56. Through the above cooperation, the monitoring range of the alarm component 54 is effectively expanded, and the timeliness of the monitoring effect is improved. At the same time, the evacuation fan 56 replaces the gas in the processing area in a timely manner, avoiding the interference of excessive oxygen content under the high temperature of welding with the protective effect of inert gas on the weld, and avoiding the inert gas Gas reduces the airtightness and mechanical properties of the weld, resulting in porosity, and prevents copper pipe joints from developing verdigris due to oxygen oxidation. The U-shaped plate 51 drives the friction wheel 57 to slide downwards along the outer wall of the heat-conducting plate 48, generating friction. The friction wheel 57 starts to rotate due to friction, driving the rotating rod 58 to rotate. When the rotating rod 58 rotates, it drives the telescopic scraper 59 to rotate. When the telescopic scraper 59 rotates, its telescopic end arc surface no longer contacts the outer wall of the heat-conducting plate 48. At this time, the telescopic scraper 59 extends away from its fixed end under the elastic force of the arc-shaped protective plate 510, and the arc-shaped protective plate 510 deforms synchronously. Through the above cooperation, the arc-shaped protective plate 510 enhances the tightness of the contact between the telescopic scraper 59 and the heat-conducting plate 48, improves the scraping force of the telescopic scraper 59 on the outer wall of the heat-conducting plate 48, ensures the cleanliness of the outer wall of the heat-conducting plate 48, prevents dirt from adhering to the outer wall of the heat-conducting plate 48, and continuously oxidizes the heat-conducting plate 48 at high temperature, thereby shortening its service life.

[0045] Please see Figures 1-8 Based on the above embodiments, another embodiment of the present invention further includes an anti-adhesion device 6;

[0046] The anti-adhesion device 6 includes a transmission rod 61, a transmission belt 62, a reciprocating screw 63, and a round rod dust suppression screen 64. One end of the transmission rod 61 is inserted through and fixedly installed on the front of the rotating rod 58. The bottom inner wall of the transmission belt 62 is driven and installed on the outer wall of the transmission rod 61. One end of the reciprocating screw 63 is inserted through and rotatably installed on the inner wall of the U-shaped plate 51. The round rod dust suppression screen 64 is inserted through and movably installed on the outer wall of the reciprocating screw 63. Through the above cooperation, the round rod dust suppression screen 64 moves in an arc trajectory while sliding horizontally, expanding the range of motion of the round rod dust suppression screen 64 above the welding assembly 32. The round rod dust suppression screen 64 intercepts and adsorbs the micro dust particles floating in the working area, preventing particles from adhering to the welding area, causing uneven weld seams, and thus reducing welding strength.

[0047] The outer wall of one end of the reciprocating screw 63 is connected to the inner wall of the top of the transmission belt 62. The round rod dust suppression screen 64 is slidably connected to the inner wall of the U-shaped plate 51 on the side near the axis of the main body 1 of the device, and a spiral groove is opened inside the round rod dust suppression screen 64.

[0048] The anti-adhesion device 6 also includes a support rod 65, a drying plate 66, a U-shaped frame 67, a horizontal plate 68, and an arc-shaped block 69. Both ends of the support rod 65 are fixedly installed inside the U-shaped groove of the round rod dust suppression mesh plate 64. The drying plate 66 is connected to the outer wall of the support rod 65 by a torsion spring, and the drying plate 66 contains desiccant. The top of the U-shaped frame 67 is fixedly installed at one end of the bottom back of the U-shaped plate 51. The outer wall of the horizontal plate 68 is fixedly installed inside the U-shaped frame 67. The top of the arc-shaped block 69 is fixedly installed at the bottom of the horizontal plate 68. The arc surface of the arc-shaped block 69 is located on the top movement trajectory of the drying plate 66. Through the above cooperation, the desiccant particles are prevented from solidifying and oxidizing inside the drying plate 66, the gas on the surface of the drying plate 66 is prevented from being difficult to dissipate in time and the equivalent amount of dry gas is prevented, the heat emitted by the heating components during cold start of the equipment is prevented from clashing and forming water mist, and the water mist is prevented from being dried and evaporated in time, thus contaminating the weld and causing the welding temperature to fluctuate, resulting in an excessively rough weld surface and reduced product quality.

[0049] In use, the rotating rod 58 drives the transmission rod 61 to rotate. The transmission rod 61 drives the reciprocating screw 63 to rotate on the inner wall of the U-shaped plate 51 via the transmission belt 62. When the reciprocating screw 63 rotates, the reciprocating spiral groove on its outer wall restricts the internal locking block of the round rod dust suppression screen plate 64, causing the round rod dust suppression screen plate 64 to slide along the outer wall of the reciprocating screw 63 towards the back of the device body 1 and then return to its original position. Through the above coordination, the round rod dust suppression screen plate 64 moves in an arc trajectory while sliding horizontally, expanding the range of motion of the round rod dust suppression screen plate 64 above the welding assembly 32. The round rod dust suppression screen plate 64 intercepts and adsorbs the micro-dust particles floating in the working area, preventing particles from adhering to the welding point and causing uneven weld seams, thereby reducing the welding strength. The round rod dust suppression screen plate 64 drives the support rod 65 to move horizontally, and the support rod 65 drives the drying plate 66 to move synchronously. During the movement, the drying plate 66 contacts the arc surface of the arc-shaped block 69 at the bottom of the horizontal plate 68. At this time, the U-shaped frame 67 limits and stabilizes the horizontal plate 68. The arc surface of the drying plate 66 is guided by the arc surface of the arc block 69 and generates a rotational force through contact. When the drying plate 66 rotates along the outer wall of the support rod 65, it causes the desiccant particles inside to shake synchronously. Then, the drying plate 66 resets itself through the torsion spring. This process is repeated to make the desiccant particles flow back and forth and shake inside the drying plate 66. Through the above cooperation, the desiccant particles are prevented from solidifying and oxidizing inside the drying plate 66. The gas on the surface of the drying plate 66 is prevented from being difficult to dissipate in time and the same amount of effective drying gas is prevented. The heat emitted by the heating components is prevented from clashing and forming water mist during cold start of the equipment. The water mist is prevented from being dried and evaporated in time, thus contaminating the weld and causing the welding temperature to fluctuate, resulting in an excessively rough weld surface and reducing the quality of the finished product.

[0050] A method for welding copper pipes includes the following steps:

[0051] S1: The staff vertically inserts the copper tube into the stabilizing ring 42 from top to bottom. During the process of inserting the copper tube into the stabilizing ring 42, the bottom of the copper tube contacts the top arc surface of the limiting rubber block 43. The limiting rubber block 43 generates a resistance force and shrinks into the stabilizing ring 42 to adapt to the circular diameter of the outer wall of the copper tube.

[0052] S2: At the same time, the limiting rubber block 43 drives the connecting rod 44 to move towards the inner wall of the stabilizing ring 42, and the connecting rod 44 pulls the arc-shaped friction plate 45 to move synchronously, and the outer wall of the arc-shaped friction plate 45 fits with the arc surface of the limiting rubber block 43.

[0053] S3: After the copper tube is clamped, start the electric turntable 41. The electric turntable 41 drives the stabilizing ring 42 to rotate clockwise and move the copper tube closer to the welding component 32. The staff can then insert the copper tube into the next stabilizing ring 42.

[0054] S4: When the stabilizing ring 42 revolves to the appropriate welding position, the electric slide rail 3 is activated. The electric slide rail 3 drives the telescopic column 31 to slide upward and reset inside itself. The telescopic end of the telescopic column 31 drives the welding assembly 32 to extend forward horizontally to ensure that the copper tube is inside itself and the welding work begins. The flux injected through the surface of the copper tube promotes a tight connection between the copper tube and the connecting fitting.

[0055] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A copper pipe welding device, comprising a device body (1), wherein a heating component is provided inside the device body (1), characterized in that: The device body (1) has a control component (2) inside the left end, an auxiliary component (21) on the right side of the device body (1), an electric slide rail (3) on the back of the inner wall of the device body (1), a telescopic column (31) inside the electric slide rail (3), and a welding component (32) on the front of the telescopic end of the telescopic column (31). The device body (1) is provided with an anti-crack device (4) inside, and an anti-oxidation device (5) is provided above the anti-crack device (4). An anti-adhesion device (6) is provided inside the anti-oxidation device (5). The anti-crack device (4) includes an electric turntable (41). The bottom of the electric turntable (41) is rotatably installed on the bottom of the inner wall of the device body (1). Several stabilizing rings (42) are fixedly installed on the bottom of the inner wall of the electric turntable (41). Several limiting rubber blocks (43) are equidistantly and slidably installed on the upper part of the inner wall of the stabilizing rings (42) through springs. The outer walls of the limiting rubber blocks (43) move through the inner wall of the stabilizing rings (42). A connecting rod (44) is fixedly installed on the bottom of the limiting rubber blocks (43). An arc-shaped friction plate (45) is fixedly installed on the bottom of the connecting rod (44). A hollow arc plate (46) is fixedly installed on the outer wall of the electric turntable (41). A contact block (47) is provided on the side of the hollow arc plate (46) near the inner wall of the device body (1). A heat-conducting plate (48) is fixedly installed on the side of the contact block (47) near the inner wall of the device body (1). A round plate (49) is fixedly installed on the side of the heat-conducting plate (48) near the axis of the device body (1). Several of the aforementioned stabilizing rings (42) are evenly distributed at the bottom of the inner wall of the electric turntable (41), and the outer wall of the stabilizing rings (42) is provided with a sliding groove. The outer wall of the limiting rubber block (43) is designed with an arc surface. The bottom of the arc-shaped friction plate (45) is in contact with the bottom of the inner wall of the electric turntable (41). The bottom of the heat-conducting plate (48) is slidably installed on the bottom of the inner wall of the device body (1) by a transverse spring. The anti-oxidation device (5) includes a U-shaped plate (51), a transmission assembly (52), an air gun (53), an alarm assembly (54), a spiral hose (55), and a dredging fan (56). The top of the U-shaped plate (51) is hinged to the top of the inner wall of the device body (1) by a torsion spring. Both sides of the transmission assembly (52) are fixedly installed inside the U-shaped plate (51). The top of the air gun (53) is through and fixedly installed at the bottom of the transmission assembly (52). The bottom of the alarm assembly (54) is fixedly installed at the top of the transmission assembly (52). The bottom of the spiral hose (55) is through and fixedly installed at the top edge of the transmission assembly (52). The bottom of the dredging fan (56) is fixedly installed at the top of the device body (1). The bottom of the U-shaped plate (51) is slidably connected to the heat-conducting plate (48) on the side near the axis of the device body (1), the top of the spiral hose (55) moves through the top of the device body (1), and the bottom of the dredging fan (56) is fixedly connected to the top of the spiral hose (55). The anti-oxidation device (5) also includes a friction wheel (57), a rotating rod (58), several telescopic scrapers (59), and an arc-shaped protective plate (510). The friction wheel (57) is rotatably mounted on the inner wall of the bottom of the U-shaped plate (51) on the side away from the axis of the transmission component (52). The outer wall of the friction wheel (57) is in contact with the outer wall of the heat-conducting plate (48). Both ends of the rotating rod (58) are fixedly mounted on the side of the friction wheel (57) close to the axis of the transmission component (52). Several telescopic scrapers (59) are equidistant and fixedly mounted on the outer wall of the rotating rod (58). The arc-shaped protective plate (510) is fixedly mounted between the outer wall of the telescopic end of the telescopic scraper (59) and the outer wall of the rotating rod (58). The anti-adhesion device (6) includes a transmission rod (61), a transmission belt (62), a reciprocating screw (63), and a round rod dust suppression screen (64). One end of the back of the transmission rod (61) is inserted through and fixedly installed on the front of the rotating rod (58). The bottom inner wall of the transmission belt (62) is driven and installed on the outer wall of the transmission rod (61). One end of the back of the reciprocating screw (63) is inserted through and rotatably installed on the inner wall of the U-shaped plate (51). The round rod dust suppression screen (64) is inserted through and movably installed on the outer wall of the reciprocating screw (63). The outer wall of one end of the reciprocating screw (63) is connected to the inner wall of the top of the transmission belt (62). The round rod dust suppression mesh plate (64) is slidably connected to the inner wall of the U-shaped plate (51) on the side near the axis of the main body (1) of the device. The round rod dust suppression mesh plate (64) has a spiral groove inside. The anti-adhesion device (6) also includes a support rod (65), a drying plate (66), a U-shaped frame (67), a horizontal plate (68), and an arc-shaped block (69). Both ends of the support rod (65) are fixedly installed inside the groove of the round rod dust suppression mesh plate (64). The drying plate (66) is connected to the outer wall of the support rod (65) by a torsion spring, and the drying plate (66) contains a desiccant. The top of the U-shaped frame (67) is fixedly installed at one end of the back of the bottom of the U-shaped plate (51). The outer wall of the horizontal plate (68) is fixedly installed inside the U-shaped frame (67). The top of the arc-shaped block (69) is fixedly installed at the bottom of the horizontal plate (68), and the arc surface of the arc-shaped block (69) is located on the top movement trajectory of the drying plate (66).

2. A method for welding copper pipes, using the copper pipe welding apparatus described in claim 1, characterized in that, Includes the following steps: S1: The staff vertically inserts the copper tube into the stabilizing ring (42) from top to bottom. During the process of inserting the copper tube into the stabilizing ring (42), the bottom of the copper tube contacts the top arc surface of the limiting rubber block (43). The limiting rubber block (43) generates a resistance force and shrinks into the stabilizing ring (42) to adapt to the circular diameter of the outer wall of the copper tube. S2: At the same time, the limiting rubber block (43) drives the connecting rod (44) to move towards the inner wall of the stabilizing ring (42), and the connecting rod (44) pulls the arc-shaped friction plate (45) to move synchronously, and the outer wall of the arc-shaped friction plate (45) fits with the arc surface of the limiting rubber block (43); S3: After the copper tube is clamped, start the electric turntable (41). The electric turntable (41) drives the stabilizing ring (42) to rotate clockwise and move the copper tube closer to the welding assembly (32). The staff can then put the copper tube into the next stabilizing ring (42). S4: When the stabilizing ring (42) revolves to the appropriate welding position, the electric slide rail (3) is activated. The electric slide rail (3) drives the telescopic column (31) to slide upward and reset inside itself. The telescopic end of the telescopic column (31) drives the welding assembly (32) to extend forward horizontally to ensure that the copper tube is inside itself and the welding work begins. The flux injected through the surface of the copper tube promotes the copper tube to be tightly connected with the connecting fitting.

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