Copper pipe welding device and method

Abstract

The invention discloses a copper pipe welding device and method, and relates to the technical field of copper pipe welding. The device comprises a device body, a heating assembly is arranged in the device body, a control assembly is arranged in the left end of the device body, an auxiliary assembly is arranged on the right side of the device body, an electric sliding rail is arranged on the back face of the inner wall of the device body, a telescopic column is arranged in the electric sliding rail, and a welding assembly is arranged on the front face of the telescopic end of the telescopic column. An anti-cracking device is arranged in the device body, an anti-oxidation device is arranged above the anti-cracking device, and an anti-adhesion device is arranged in the anti-oxidation device. The stabilizing ring can conduct self-adaptive stable clamping on copper pipes with different sizes and diameters, the clamping range of the interior of the stabilizing ring for the copper pipes is enlarged through the arc-shaped friction plates, so that the clamping force and stability are improved, the stability in the welding process is guaranteed, and cracks are avoided at the welding position.

Description

Technical Field

[0001] The present invention relates to the technical field of copper pipe welding, and specifically to a copper pipe welding device and method. Background Art

[0002] Air conditioner copper pipes refer to the copper pipes connecting the indoor unit and the outdoor unit of an air conditioner. Air conditioner copper pipes are hard in texture, not easily corroded, and resistant to high temperature and high pressure. 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 link in determining the quality of copper pipes.

[0003] A patent with the 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 fastening member is sleeved on the connecting fitting. One side of the outer wall of the fastening member is fixedly connected with a mounting seat, and a first spring is fixedly connected to the mounting seat; when welding, the device is adjusted first. During welding, due to the fixation of the connecting ring, the stability of the welding torch can be greatly increased, and it is easier to control the welding torch when welding in the hand; by relatively fixing the welding torch and the soldering flux on the same device, when welding the connection part, there is no need to always align the distance and angle; through the fastening member, different connecting parts can be adapted. Even when the operator works at a height and fixes the welding torch and the device for placing the soldering flux on a certain connecting part, there is no need to always hold the welding torch by hand, reducing the operation difficulty.

[0004] However, there are still deficiencies in the current device: although the device can reduce the operation difficulty during the welding process, it is difficult to stably clamp cylindrical air conditioner copper pipes with different diameters during the welding process, increasing the probability of the copper pipe shaking during welding, which may cause cracks at the welding joint between the copper pipe and the connecting fitting, and to a certain extent, it is likely to reduce the welding quality. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a copper pipe welding device and method, which solve the problems raised in the above background art.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: A copper pipe welding device includes a device main body, and a heating component is arranged inside the device main body. A control component is arranged inside the left end of the device main body. An auxiliary component is arranged on the right side of the device main body. An electric slide rail is arranged on the back inner wall of the device main body, and a telescopic column is arranged inside the electric slide rail. The front of the telescopic end of the telescopic column is provided with a welding component; An anti-crack device is arranged inside the device main body. An anti-oxidation device is arranged above the anti-crack device, and an anti-adhesion device is arranged inside the anti-oxidation device; The anti-crack device includes an electric turntable, the bottom of which is rotatably installed on the bottom inner wall of the device body. A number of stabilizing rings are fixedly installed on the bottom inner wall of the electric turntable. Above the inside of each stabilizing ring, a number of limiting rubber blocks are equidistantly and slidably installed through 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 block, and 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 contact block is arranged on the side of the hollow arc plate close to the inner wall of the device body. A heat-conducting plate is fixedly installed on the side of the contact block close to the inner wall of the device body. A round plate is fixedly installed on the side of the heat-conducting plate close to the axis of the device body. The staff vertically inserts the copper tube into the inside of the stabilizing ring from top to bottom. During the process of inserting the bottom of the copper tube into the inside of the stabilizing ring, the bottom of the copper tube contacts the arc surface at the top of the limiting rubber block. The limiting rubber block generates a repulsive force and contracts into the inside of 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 fits with the arc surface of the limiting rubber block. After the copper tube is clamped, the electric turntable is started. The electric turntable drives the stabilizing ring to rotate clockwise in a circular motion, driving the copper tube to move towards the welding assembly. The staff can insert the copper tube into the next stabilizing ring. When the stabilizing ring rotates to a suitable welding position, the electric slide rail is started. 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 horizontally extend forward to ensure that the copper tube is inside itself and starts the welding work. The flux injected through the surface of the copper tube promotes the tight connection between the copper tube and the connecting pipe fittings; when the electric turntable rotates in a circular motion, it drives the hollow arc plate to move synchronously. When the hollow arc plate rotates in a circular motion, it no longer contacts the contact block. At this time, after the heat-conducting plate loses the repulsive force of the hollow arc plate, it horizontally slides towards the electric turntable by the elastic force of the spring. The heat-conducting plate drives the contact block to move synchronously. Then, when the hollow arc plate contacts the contact block again, the heat-conducting plate resets. Repeating like this promotes the heat-conducting plate to drive the round plate to move synchronously. When the round plate moves towards the electric turntable, its circular surface contacts and repels the copper tube during the circular motion. The copper tube undergoes slight deformation due to the repulsion of the round plate.

[0007] According to the above technical solution, a number of the stabilizing rings are equidistantly distributed on the bottom inner wall of the electric turntable, and a chute is provided on the outer wall of the stabilizing ring. The outer wall of the limiting rubber block is designed as an arc surface. The bottom of the arc-shaped friction plate contacts the bottom inner wall of the electric turntable. The bottom of the heat-conducting plate is slidably installed on the bottom inner wall of the device body through a transverse spring.

[0008] According to the above technical solution, the anti-oxidation device includes a U-shaped plate, a transmission component, a hot air gun, an alarm component, a spiral hose, and a ventilation fan. The top of the U-shaped plate is hinged to the top inner wall of the device main body through a torsion spring. Both sides of the transmission component are fixedly installed inside the U-shaped plate. The top of the hot air gun penetrates and is 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 penetrates and is fixedly installed at the edge of the top of the transmission component. The bottom of the ventilation fan is fixedly installed at the top of the device main body. When the heat conducting plate slides towards the axis direction of the device main 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 perform an arc-shaped trajectory movement, and the transmission component drives the hot 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 ventilation fan to start through the intelligent module. The ventilation fan transmits suction force to the hot air gun through the spiral hose. The hot air gun pumps the air in the processing area and discharges it through the ventilation fan.

[0009] According to the above technical solution, the bottom of the U-shaped plate is slidably connected to the side of the heat conducting plate close to the axis of the device main body. The top of the spiral hose movably penetrates the top of the device main body. The bottom of the ventilation fan is fixedly connected to the top of the spiral hose.

[0010] According to the above technical solution, the anti-oxidation device further includes a friction wheel, a rotating rod, a plurality of telescopic scraping plates, and an arc-shaped protective piece. The side of the friction wheel away from the axis of the transmission component is rotatably installed at the inner wall of the bottom of the U-shaped plate. 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 installed on the side of the friction wheel close to the axis of the transmission component. A plurality of the telescopic scraping plates are equidistantly and fixedly installed on the outer wall of the rotating rod. The arc-shaped protective piece is fixedly installed between the outer wall of the telescopic end of the telescopic scraping plate 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 force. The friction wheel starts to rotate by itself due to the friction force and drives the rotating rod to rotate. When the rotating rod rotates, it drives the telescopic scraping plates to rotate. When the telescopic scraping plates rotate, the arc surface of their telescopic ends no longer contacts the outer wall of the heat conducting plate. At this time, the telescopic scraping plates extend away from their fixed ends under the restoring force of the arc-shaped protective piece, and the arc-shaped protective piece deforms synchronously.

[0011] According to the above technical solution, the anti-adhesion device includes a transmission rod, a transmission belt, a reciprocating lead screw, and a round rod dust reduction net plate. One end of the back of the transmission rod penetrates and is fixedly installed on the front of the rotating rod. The inner wall of the bottom of the transmission belt is drivingly installed on the outer wall of the transmission rod. One end of the back of the reciprocating lead screw penetrates and is rotatably installed on the inner wall of the U-shaped plate. The round rod dust reduction net plate penetrates and is movably installed on the outer wall of the reciprocating lead screw. When the rotating rod rotates, it drives the transmission rod to rotate. The transmission rod drives the reciprocating lead screw to rotate on its own axis inside the U-shaped plate through the transmission belt. When the reciprocating lead screw rotates, through the restriction of the reciprocating spiral groove on its outer wall on the built-in block of the round rod dust reduction net plate, the round rod dust reduction net plate can slide along the outer wall of the reciprocating lead screw towards the direction close to the back of the device main body and reset.

[0012] According to the above technical solution, one end of the outer wall of the front of the reciprocating lead screw is drivingly connected to the inner wall of the top of the transmission belt. One side of the round rod dust reduction net plate close to the axis of the device main body is slidably connected to the inner wall of the U-shaped plate, and a return groove is provided inside the round rod dust reduction net plate.

[0013] According to the above technical solution, the anti-adhesion device further includes a support rod, a drying plate, a U-shaped frame, a cross plate, and an arc block. Both ends of the support rod are fixedly installed inside the return groove of the round rod dust reduction net plate. The drying plate is internally penetrated and hinged to the outer wall of the support rod through a torsion spring, and a desiccant is provided inside the drying plate. 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 cross plate is fixedly installed inside the U-shaped frame. The top of the arc block is fixedly installed at the bottom of the cross plate. The arc surface of the arc block is located on the movement track of the top of the drying plate. The round rod dust reduction net 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 block at the bottom of the cross plate. At this time, the U-shaped frame limits and stabilizes the cross plate. At this time, the arc surface of the drying plate uses the arc surface of the arc block for guidance and generates a rotational force when touching. When the drying plate rotates along the outer wall of the support rod, it drives the desiccant particles inside itself to shake synchronously. Then the drying plate resets through the torsion spring of itself, and so on, prompting the desiccant particles to flow and shake reciprocally inside the drying plate.

[0014] A copper pipe welding method includes the following steps: S1: The staff vertically places the copper pipe into the stabilizing ring from top to bottom. During the process of the bottom of the copper pipe being placed into the stabilizing ring, it contacts the arc surface of the top of the limiting rubber block, and the limiting rubber block generates a resisting force and contracts into the stabilizing ring to adapt to the circular diameter of the outer wall of the copper pipe; S2: At the same time, the limiting rubber block drives the connecting rod to move towards the direction close to the inner wall of the stabilizing ring, and the connecting rod pulls the arc friction plate to move synchronously, and the outer wall of the arc friction plate fits with the arc surface of the limiting rubber block; S3: After the copper pipe is clamped, start the electric turntable. The electric turntable drives the stabilizing ring to revolve clockwise and drives the copper pipe to move towards the direction close to the welding assembly. The staff can place the copper pipe into the next stabilizing ring; S4: When the stabilizing ring revolves to a suitable welding position, the electric slide rail is started, and the electric slide rail drives the telescopic column to slide upward inside itself and reset. The telescopic end of the telescopic column drives the welding assembly to extend horizontally forward to ensure that the copper tube is located inside itself and start welding. The flux liquid injected through the surface of the copper tube promotes a tight connection between the copper tube and the connecting pipe fitting.

[0015] The present invention provides a copper tube welding device and method, which have the following beneficial effects: (1) The present invention sets an anti-crack device, and cooperates with an electric turntable, a stabilizing ring, a limiting rubber block, a connecting rod, an arc friction plate, a hollow arc plate, a resistance block, a heat conducting plate and a round plate to enable 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 stability during welding and avoiding cracks at the weld. The electric turntable is used to distinguish the traditional hand-held welding method, thereby reducing the risk of injury to workers and improving welding efficiency. The copper tube is caused to be slightly deformed during the process of soldering, so that the soldering liquid is evenly filled in the weld. At the same time, the heat conducting plate conducts the heat emitted by the heating component inside the device body to ensure that the temperature of the entire area inside the device body is balanced, thereby avoiding uneven internal stress distribution of copper tubes and other components due to temperature differences, which increases the risk of deformation and cracking at the weld.

[0016] (2) The present invention, through the setting of the anti-oxidation device, cooperates with the heat conducting plate, U-shaped plate, transmission component, air gun, alarm component, spiral hose, drainage fan, friction wheel, rotating rod, telescopic scraper and arc-shaped protective sheet, so as to effectively expand the monitoring range of the alarm component and improve the timeliness of the monitoring effect. At the same time, the drainage fan can replace the gas in the processing area in time to avoid the excessive oxygen content under the high temperature of welding interfering with the protective effect of the inert gas on the weld, avoid the inert gas reducing the air tightness and mechanical properties of the weld to produce pores, and avoid the copper pipe joints from producing copper green oxidation due to oxygen; at the same time, with the help of the arc-shaped protective sheet, the contact tightness between the telescopic scraper and the heat conducting plate is enhanced, the scraping force of the telescopic scraper on the outer wall of the heat conducting plate is improved, the cleanliness of the outer wall of the heat conducting plate is ensured, and dirt is prevented from adhering to the outer wall of the heat conducting plate, and the heat conducting plate is continuously oxidized at high temperature to shorten its service life.

[0017] (3) The present invention sets an anti-adhesion device, and cooperates with a rotating rod, a transmission rod, a transmission belt, a reciprocating screw rod, a round rod dust suppression screen, a support rod, a drying plate, a U-shaped frame, a cross plate and an arc block to enable the round rod dust suppression screen to move in an arc trajectory and slide horizontally at the same time, thereby expanding the range of motion of the round rod dust suppression screen above the welding assembly. The round rod dust suppression screen is used to intercept and adsorb dust particles floating in the working area, thereby preventing particles from adhering to the welding point, causing uneven welds and thus reducing welding strength; and preventing the desiccant particles from solidifying and oxidizing inside the drying plate, thereby preventing the gas on the surface of the drying plate from being difficult to emit an equal amount of equivalent dry gas in time, and preventing the equipment from forming water mist due to the heat emitted by the heating assembly during cold start, thereby preventing the water mist from contaminating the weld due to failure to dry up and evaporate in time, causing the welding temperature to fluctuate, resulting in the weld surface being too rough and reducing the quality of the finished product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the present invention as a whole; Figure 2 It is a cross-sectional schematic diagram of the present invention as a whole; Figure 3 This is a schematic diagram of the anti-crack device of the present invention; Figure 4 It is a schematic cross-sectional view of a part of the structure of the anti-crack device of the present invention; Figure 5 It is a schematic diagram of the anti-oxidation device of the present invention; Figure 6 It is a schematic diagram of a partial structure of the anti-oxidation device of the present invention from a bottom perspective; Figure 7 It is a schematic diagram of the anti-adhesion device of the present invention; Figure 8 It is a schematic diagram of the anti-adhesion device of the present invention from the left side perspective.

[0019] In the figure: 1. Device body; 2. Control assembly; 21. Auxiliary assembly; 3. Electric slide rail; 31. Telescopic column; 32. Welding assembly; 4. Anti-crack device; 41. Electric turntable; 42. Stabilizing ring; 43. Limiting rubber block; 44. Connecting rod; 45. Arc friction plate; 46. Hollow arc plate; 47. Resistance block; 48. Heat conduction plate; 49. Round plate; 5. Anti-oxidation device; 51. U-shaped plate; 52. Transmission component; 53, air gun; 54, alarm component; 55, spiral hose; 56, drainage fan; 57, friction wheel; 58, rotating rod; 59, telescopic scraper; 510, arc-shaped protective sheet; 6, anti-adhesion device; 61, transmission rod; 62, transmission belt; 63, reciprocating screw rod; 64, round rod dust suppression screen; 65, support rod; 66, drying plate; 67, U-shaped frame; 68, horizontal plate; 69, arc block. DETAILED DESCRIPTION

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

[0021] See also Figures 1 - 8 An embodiment of the present invention is: a copper pipe welding device, comprising a device body 1, wherein a heating component is arranged inside the device body 1, a control component 2 is arranged inside the left end of the device body 1, an auxiliary component 21 is arranged on the right side of the device body 1, an electric slide rail 3 is arranged on the back of the inner wall of the device body 1, a telescopic column 31 is arranged inside the electric slide rail 3, and a welding component 32 is arranged on the front of the telescopic end of the telescopic column 31; An anti-crack device 4 is provided inside the device body 1, an anti-oxidation device 5 is provided above the anti-crack device 4, and 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 mounted on the bottom of the inner wall of the device body 1, a plurality of stabilizing rings 42 are fixedly mounted on the bottom of the inner wall of the electric turntable 41, a plurality of limiting rubber blocks 43 are equidistantly and slidably mounted on the upper part of the inside of the stabilizing ring 42 through a spring, the outer walls of the plurality of limiting rubber blocks 43 movably penetrate the inside of the stabilizing ring 42, a connecting rod 44 is fixedly mounted on the bottom of the limiting rubber block 43, an arc-shaped friction plate 45 is fixedly mounted on the bottom of the connecting rod 44, a hollow arc plate 46 is fixedly mounted on the outer wall of the electric turntable 41, a resistance block 47 is arranged on the side of the hollow arc plate 46 close to the inner wall of the device body 1, a heat conducting plate 48 is fixedly mounted on the side of the resistance block 47 close to the inner wall of the device body 1, and a round block plate 49 is fixedly mounted on the side of the heat conducting plate 48 close to the axis of the device body 1, so that the stabilizing ring is promoted through the above cooperation 42 can adaptively and stably clamp copper tubes of different diameters, expand the clamping range of the copper tube inside the stabilizing ring 42 through the arc-shaped friction plate 45, thereby improving the clamping strength and stability, ensuring stability during welding and avoiding cracks at the welding point, and using the electric turntable 41 to distinguish from the traditional hand-held welding method, reducing the risk of injury to workers while improving welding efficiency; through the above cooperation, the copper tube is caused to cause the flux to be more evenly distributed at the welding point during the slight deformation process, ensuring that the flux fills the welding point evenly during the welding process, and at the same time, the heat conducting plate 48 conducts the heat emitted by the heating component inside the device body 1 to ensure that the temperature of the entire area inside the device body 1 is balanced, avoiding the uneven internal stress distribution of components such as copper tubes due to temperature differences, which increases the risk of deformation and cracking at the welding point.

[0022] A plurality of stabilizing rings 42 are evenly distributed at the bottom of the inner wall of the electric turntable 41, and a slide groove is provided on the outer wall of the stabilizing ring 42. The outer wall of the limiting rubber block 43 is designed as an arc surface. The bottom of the arc-shaped friction plate 45 contacts the bottom of the inner wall of the electric turntable 41, and the bottom of the heat conducting plate 48 is slidably installed on the bottom of the inner wall of the device body 1 through a transverse spring.

[0023] When in use, the staff puts the copper tube vertically into the stabilizing ring 42 from top to bottom. The bottom of the copper tube contacts the top arc surface of the limiting rubber block 43 during the process of being placed into the stabilizing ring 42. The limiting rubber block 43 generates a resistance force and shrinks toward the inside of the stabilizing ring 42 to adapt to the circular diameter of the outer wall of the copper tube. At the same time, the limiting rubber block 43 drives the connecting rod 44 to move toward the inner wall of the stabilizing ring 42. The connecting rod 44 pulls the arc friction plate 45 to move synchronously, and the outer wall of the arc friction plate 45 fits with the arc surface of the limiting rubber block 43. When the copper tube is clamped, the electric turntable 41 is started, and the electric turntable 41 drives the stabilizing ring 42 to revolve clockwise to drive the copper tube to approach the welding assembly. The staff can put the 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 started. The electric slide rail 3 drives the telescopic column 31 to slide upward inside itself and reset. The telescopic end of the telescopic column 31 drives the welding assembly 32 to extend horizontally forward to ensure that the copper tube is located inside itself and start welding. The flux liquid injected by the copper tube surface is lifted to make the copper tube and the connecting pipe fitting tightly connected. Through the above cooperation, the stabilizing ring 42 can adaptively and stably clamp copper tubes of different diameters. The arc friction plate 45 is used to expand the clamping range of the stabilizing ring 42 for the copper tube. The clamping strength and stability are improved to ensure the stability during the welding process and avoid cracks in the welding area. The electric turntable 41 is different from the traditional handheld welding method, which reduces the risk of injury to workers and improves welding efficiency. The electric turntable 41 drives the hollow arc plate 46 to move synchronously when it revolves. The hollow arc plate 46 no longer contacts the resistance block 47 when it revolves. At this time, the heat conducting plate 48 loses the resistance of the hollow arc plate 46 and slides horizontally toward the electric turntable 41 with the help of the elastic force of the spring. The heat conducting plate 48 drives the resistance block 47 to move synchronously. After that, when the hollow arc plate 46 contacts the resistance block 47 again, the heat conducting plate 48 resets, and the reciprocating process promotes heat conduction. Plate 48 drives circular plate 49 to move synchronously. When circular plate 49 moves toward electric turntable 41, its circular surface contacts and contacts the copper tube in the process of revolution. The copper tube is slightly deformed due to the contact of circular plate 49. The above cooperation causes the copper tube to be more evenly distributed in the welding joint during the slight deformation process, ensuring that the welding joint is evenly filled with flux during the welding process. At the same time, heat conducting plate 48 conducts the heat emitted by the heating component inside the device body 1, ensuring the temperature balance of the entire area inside the device body 1, and avoiding uneven internal stress distribution of components such as copper tubes due to temperature difference, which increases the risk of deformation and cracking of welding joints.

[0024] See also Figures 1 - 8 , based on the above embodiment, another embodiment of the present invention further includes an anti-oxidation device 5; The anti-oxidation device 5 includes a U-shaped plate 51, a transmission component 52, a hot air gun 53, an alarm component 54, a spiral hose 55, and a ventilation fan 56. The top of the U-shaped plate 51 is hinged to the top inner wall of the device main body 1 through a torsion spring. Both sides of the transmission component 52 are fixedly installed inside the U-shaped plate 51. The top of the hot air gun 53 penetrates and is 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 penetrates and is fixedly installed at the top edge of the transmission component 52. The bottom of the ventilation fan 56 is fixedly installed at the top of the device main body 1. 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 ventilation fan 56 timely replaces the gas in the processing area, avoiding the interference of the excessive oxygen content under the welding high temperature on the protection effect of the inert gas on the weld, avoiding the reduction of the airtightness and mechanical property assurance of the weld by the inert gas, thus generating pores, and avoiding the copper green oxidation phenomenon of the copper pipe joint due to oxygen.

[0025] The bottom of the U-shaped plate 51 is slidably connected to one side of the heat conducting plate 48 close to the axis of the device main body 1. The top of the spiral hose 55 movably penetrates the top of the device main body 1. The bottom of the ventilation fan 56 is fixedly connected to the top of the spiral hose 55.

[0026] The anti-oxidation device 5 further includes a friction wheel 57, a rotating rod 58, a plurality of telescopic scraping plates 59, and an arc-shaped protective piece 510. One side of the friction wheel 57 away from the axis of the transmission component 52 is rotatably installed at the inner wall of the bottom of the U-shaped plate 51. 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 installed on one side of the friction wheel 57 close to the axis of the transmission component 52. A plurality of telescopic scraping plates 59 are equidistantly and fixedly installed on the outer wall of the rotating rod 58. The arc-shaped protective piece 510 is fixedly installed between the outer wall of the telescopic end of the telescopic scraping plate 59 and the outer wall of the rotating rod 58. Through the above cooperation, the contact tightness between the telescopic scraping plate 59 and the heat conducting plate 48 is enhanced by means of the arc-shaped protective piece 510, the scraping force of the telescopic scraping plate 59 on the outer wall of the heat conducting plate 48 is increased, the cleanliness of the outer wall of the heat conducting plate 48 is ensured, and dirt is prevented from adhering to the outer wall of the heat conducting plate 48, and the heat conducting plate 48 is continuously oxidized at high temperature, thereby shortening the service life.

[0027] During use, when the heat conducting plate 48 slides towards the axis direction of the device 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 starts 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 assembly 52 to perform an arc-shaped trajectory movement, and the transmission assembly 52 drives the air gun 53 and the alarm assembly 54 to move synchronously. When the alarm assembly 54 detects that the oxygen concentration in the processing area is too high, it issues an information alarm. The control assembly 2 controls the start of the ventilation fan 56 through the intelligent module. The ventilation fan 56 transmits suction force to the air gun 53 through the spiral hose 55. The air gun 53 pumps the air in the processing area and discharges it through the ventilation fan 56. Through the above cooperation, the monitoring range of the alarm assembly 54 is effectively expanded, and the timeliness of the monitoring effect is improved. At the same time, the ventilation fan 56 timely replaces the gas in the processing area, avoiding the interference of excessive oxygen content under welding high temperature on the protection effect of the inert gas on the weld, avoiding the reduction of the airtightness and mechanical property assurance of the inert gas on the weld, resulting in pores, and avoiding the copper green oxidation phenomenon of the copper pipe joint due to oxygen; The U-shaped plate 51 drives the friction wheel 57 to slide downward along the outer wall of the heat conducting plate 48 and generates friction force. The friction wheel 57 starts to rotate by the friction force and drives 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, the arc surface of its telescopic end no longer contacts the outer wall of the heat conducting plate 48. At this time, the telescopic scraper 59 extends in the direction away from its fixed end under the elastic force of the arc-shaped protective piece 510 resetting, and the arc-shaped protective piece 510 deforms synchronously. Through the above cooperation, the contact tightness between the telescopic scraper 59 and the heat conducting plate 48 is enhanced by means of the arc-shaped protective piece 510, and the scraping force of the telescopic scraper 59 on the outer wall of the heat conducting plate 48 is improved, ensuring the cleanliness of the outer wall of the heat conducting plate 48 to prevent dirt from adhering to the outer wall of the heat conducting plate 48, and continuously oxidizing the heat conducting plate 48 at high temperature, thus shortening the service life.

[0028] Please refer to Figures 1 - 8 , on the basis of the above embodiments, in another embodiment of the present invention, an anti-adhesion device 6 is further included; The anti-adhesion device 6 includes a transmission rod 61, a transmission belt 62, a reciprocating lead screw 63, and a round rod dust reduction net plate 64. One end of the back of the transmission rod 61 penetrates and is fixedly installed on the front of the rotating rod 58. The inner wall of the bottom of the transmission belt 62 is drivingly installed on the outer wall of the transmission rod 61. One end of the back of the reciprocating lead screw 63 penetrates and is rotatably installed on the inner wall of the U-shaped plate 51. The inside of the round rod dust reduction net plate 64 penetrates and is movably installed on the outer wall of the reciprocating lead screw 63. Through the above cooperation, while the round rod dust reduction net plate 64 performs an arc-shaped trajectory movement, it also performs a horizontal sliding, expanding the movement range of the round rod dust reduction net plate 64 above the welding assembly 32, and relying on the round rod dust reduction net plate 64 to intercept and adsorb the fine dust particles floating in the working area, avoiding the adhesion of particulate matter to the welding place, resulting in uneven welds and reducing the welding strength.

[0029] One end of the outer wall of the reciprocating lead screw 63 on the front side is drivingly connected to the inner wall of the top of the conveyor belt 62. One side of the round rod dust-removing net plate 64 close to the axis of the device main body 1 is slidably connected to the inner wall of the U-shaped plate 51, and a return groove is formed inside the round rod dust-removing net plate 64.

[0030] The anti-adhesion device 6 further includes a support rod 65, a drying plate 66, a U-shaped frame 67, a cross plate 68 and an arc-shaped block 69. Both ends of the support rod 65 are fixedly installed inside the return groove of the round rod dust-removing net plate 64. The drying plate 66 is internally penetrated by a torsion spring and hinged to the outer wall of the support rod 65, and a desiccant is provided inside the drying plate 66. 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 cross 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 cross plate 68. The arc surface of the arc-shaped block 69 is located on the movement track of the top of the drying plate 66. Through the above cooperation, it is possible to avoid the solidification and oxidation of desiccant particles inside the drying plate 66, avoid the difficulty of timely emission of an equal amount and equivalent drying gas on the surface of the drying plate 66, avoid the heat generated by the heating component during cold start-up of the equipment from forming water mist due to counteracting, and avoid the water mist from contaminating the weld due to failure to dry and evaporate in time, resulting in fluctuations in the welding temperature and too rough surface of the weld, thus reducing the finished product quality.

[0031] When in use, the rotation of the rotating rod 58 drives the transmission rod 61 to rotate, and the transmission rod 61 drives the reciprocating screw rod 63 to rotate on the inner wall of the U-shaped plate 51 through the transmission belt 62. When the reciprocating screw rod 63 rotates, the reciprocating spiral groove on its outer wall restricts the built-in block of the round rod dust reduction screen plate 64, so that the round rod dust reduction screen plate 64 can slide along the outer wall of the reciprocating screw rod 63 toward the back of the device body 1 and reset. Through the above cooperation, the round rod dust reduction screen plate 64 is prompted to move in an arc trajectory and slide horizontally at the same time, thereby expanding the range of movement of the round rod dust reduction screen plate 64 above the welding assembly 32, and relying on the round rod dust reduction screen plate 64 to intercept and absorb the dust particles floating in the working area, so as to avoid the particles adhering to the welding point and causing the weld to be uneven, thereby reducing the welding strength; the round rod dust reduction 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, 66 contacts the arc surface of the arc 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. At this time, the arc surface of the drying plate 66 is guided by the arc surface of the arc block 69 and resists to generate a rotation force. When the drying plate 66 rotates along the outer wall of the support rod 65, it drives the desiccant particles inside itself to shake synchronously. Then, the drying plate 66 resets itself through the torsion spring, and the reciprocating process causes the desiccant particles to circulate 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, and the gas on the surface of the drying plate 66 is prevented from being difficult to emit an equal amount of equivalent dry gas in time, and the heat emitted by the heating component is prevented from counteracting to form water mist when the equipment is cold started, and the water mist is prevented from polluting the weld due to failure to dry and evaporate in time, resulting in fluctuations in welding temperature, making the weld surface too rough and reducing the quality of the finished product.

[0032] A copper pipe welding method comprises the following steps: S1: The staff puts the copper tube vertically into the stabilizing ring 42 from top to bottom. The bottom of the copper tube contacts the top arc surface of the limiting rubber block 43 during the process of being put into the stabilizing ring 42. The limiting rubber block 43 generates a resistance force and shrinks toward the inside of 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 toward 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, the electric turntable 41 is started, and the electric turntable 41 drives the stabilizing ring 42 to revolve clockwise, driving the copper tube to move toward the welding assembly 32, and the staff can put the copper tube into the next stabilizing ring 42; S4: When the stable ring 42 revolves to a suitable welding position, start the electric slide rail 3. 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 horizontally forward to ensure that the copper pipe is located inside itself and start the welding work. The soldering flux injected through the surface of the copper pipe promotes the tight connection between the copper pipe and the connecting pipe fitting.

[0033] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A copper tube welding device, comprising a device main body (1), and a heating component is arranged inside the device main body (1), characterized in that: A control component (2) is arranged inside the left end of the device body (1), an auxiliary component (21) is arranged on the right side of the device body (1), an electric slide rail (3) is arranged on the back side of the inner wall of the device body (1), a telescopic column (31) is arranged inside the electric slide rail (3), and a welding component (32) is arranged on the front side of the telescopic end of the telescopic column (31); An anti-crack device (4) is arranged inside the device body (1), an anti-oxidation device (5) is arranged above the anti-crack device (4), and an anti-adhesion device (6) is arranged inside the anti-oxidation device (5); The anti-crack device (4) comprises an electric turntable (41), the bottom of the electric turntable (41) being rotatably mounted on the bottom of the inner wall of the device body (1), a plurality of stabilizing rings (42) being fixedly mounted on the bottom of the inner wall of the electric turntable (41), a plurality of limit rubber blocks (43) being equidistantly and slidably mounted on the upper part of the inner part of the stabilizing ring (42) via a spring, the outer walls of the plurality of limit rubber blocks (43) movably passing through the inner part of the stabilizing ring (42), a connecting rod (44) being fixedly mounted on the bottom of the limit rubber block (43), an arc-shaped friction plate (45) being fixedly mounted on the bottom of the connecting rod (44), a hollow arc plate (46) being fixedly mounted on the outer wall of the electric turntable (41), a resistance block (47) being arranged on the side of the hollow arc plate (46) close to the inner wall of the device body (1), a heat conducting plate (48) being fixedly mounted on the side of the resistance block (47) close to the inner wall of the device body (1), and a round block plate (49) being fixedly mounted on the side of the heat conducting plate (48) close to the axis of the device body (1).

2. The copper tube welding device according to claim 1, characterized in that: A plurality of the stabilizing rings (42) are equidistantly distributed on the bottom of the inner wall of the electric turntable (41), and a sliding groove is provided on the outer wall of the stabilizing ring (42). The outer wall of the limiting rubber block (43) is designed as an arc surface. The bottom of the arc-shaped friction plate (45) contacts the bottom of the inner wall of the electric turntable (41), and the bottom of the heat conducting plate (48) is slidably mounted on the bottom of the inner wall of the device body (1) via a transverse spring.

3. A copper tube welding device according to claim 2, characterized in that: The anti-oxidation device (5) comprises a U-shaped plate (51), a transmission component (52), an air gun (53), an alarm component (54), a spiral hose (55) and a drainage fan (56); the top of the U-shaped plate (51) is hinged to the top of the inner wall of the device body (1) via a torsion spring; both sides of the transmission component (52) are fixedly mounted inside the U-shaped plate (51); the top of the air gun (53) passes through and is fixedly mounted on the bottom of the transmission component (52); the bottom of the alarm component (54) is fixedly mounted on the top of the transmission component (52); the bottom of the spiral hose (55) passes through and is fixedly mounted on the top edge of the transmission component (52); and the bottom of the drainage fan (56) is fixedly mounted on the top of the device body (1).

4. A copper pipe welding device according to claim 3, characterized in that: The bottom of the U-shaped plate (51) is slidably connected to the heat conducting plate (48) near the axis of the device body (1); the top of the spiral hose (55) movably penetrates the top of the device body (1); and the bottom of the drainage fan (56) is fixedly connected to the top of the spiral hose (55).

5. The copper tube welding device according to claim 4, characterized in that: The anti-oxidation device (5) further includes a friction wheel (57), a rotating rod (58), a plurality of telescopic scraping plates (59) and an arc-shaped protective piece (510). The friction wheel (57) is rotatably installed on the inner wall of the bottom of the U-shaped plate (51) on the side away from the axis of the transmission assembly (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 installed on the side of the friction wheel (57) close to the axis of the transmission assembly (52). A plurality of the telescopic scraping plates (59) are equidistantly and fixedly installed on the outer wall of the rotating rod (58). The arc-shaped protective piece (510) is fixedly installed between the outer wall of the telescopic end of the telescopic scraping plate (59) and the outer wall of the rotating rod (58).

6. The copper pipe welding device according to claim 5, wherein: The anti-adhesion device (6) includes a transmission rod (61), a transmission belt (62), a reciprocating lead screw (63) and a round rod dust-removing net plate (64). One end of the back of the transmission rod (61) penetrates and is fixedly installed on the front of the rotating rod (58). The inner wall of the bottom of the transmission belt (62) is drivingly installed on the outer wall of the transmission rod (61). One end of the back of the reciprocating lead screw (63) penetrates and is rotatably installed on the inner wall of the U-shaped plate (51). The inside of the round rod dust-removing net plate (64) penetrates and is movably installed on the outer wall of the reciprocating lead screw (63).

7. The copper tube welding device according to claim 6, characterized in that: One end of the outer wall of the front of the reciprocating lead screw (63) is drivingly connected to the inner wall of the top of the transmission belt (62). The side of the round rod dust-removing net plate (64) close to the axis of the device main body (1) is slidably connected to the inner wall of the U-shaped plate (51), and a return groove is formed inside the round rod dust-removing net plate (64).

8. The copper tube welding device according to claim 7, wherein: The anti-adhesion device (6) further includes a support rod (65), a drying plate (66), a U-shaped frame (67), a cross plate (68) and an arc-shaped block (69). Both ends of the support rod (65) are fixedly installed inside the return groove of the round rod dust-removing net plate (64). The inside of the drying plate (66) is penetrated and hinged to the outer wall of the support rod (65) through a torsion spring, and a desiccant is arranged inside the drying plate (66). 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 cross 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 cross plate (68). The arc surface of the arc-shaped block (69) is located on the moving track of the top of the drying plate (66).

9. A copper tube welding method, which uses a copper tube welding device described in any one of claims 1-8 for welding, is characterized in that It includes the following steps: S1: The staff vertically places the copper tube into the stable ring (42) from top to bottom. During the process of the bottom of the copper tube being placed into the stable ring (42), it contacts the arc surface of the top of the limit rubber block (43). The limit rubber block (43) generates a resistance force and contracts into the stable ring (42) to adapt to the circular diameter of the outer wall of the copper tube. S2: At the same time, the limit rubber block (43) drives the connecting rod (44) to move towards the inner wall of the stable ring (42). 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 limit rubber block (43). S3: After the copper tube is clamped, start the electric turntable (41). The electric turntable (41) drives the stable ring (42) to revolve clockwise, driving the copper tube to move towards the welding assembly (32). The staff can place the copper tube inside the next stable ring (42). S4: When the stable ring (42) revolves to the appropriate welding position, start the electric slide rail (3). 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 horizontally forward to ensure that the copper tube is inside itself and start the welding work. The flux injected through the surface elevation of the copper tube promotes the tight connection between the copper tube and the connecting pipe fittings.

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