Welding device for air conditioner refrigeration copper pipe

Abstract

The invention discloses a welding device for air conditioner refrigeration copper pipes, and relates to the technical field of air conditioner refrigeration copper pipe welding tools, the welding device comprises a base and a cooling box mounted on one side of the top of the base, a rotating disc is arranged in the middle of the top surface of the base, and an electric rotating chuck is mounted on the top of an annular table; a connecting assembly is installed at the telescopic end of the electric push cylinder, and a heating mechanism is installed in the U-shaped frame. A driving assembly is arranged in the cooling box; a hot melting mechanism is arranged at the bottom of the front end of the L-shaped plate, and an automatic welding mechanical arm is installed at the outer end of the sliding base. Through cooperation of the electric rotating chuck, the heating mechanism and the connecting assembly, rotary surrounding type impurity heat treatment can be conveniently achieved on the welded refrigeration copper pipe, the primary welding effect on the refrigeration copper pipe can be achieved, automatic rotating welding operation or manual welding operation can be selected according to requirements, and the welding efficiency is improved. And the copper pipes can be switched from the vertical state to the transverse state, and the applicability of the device to welding operation of different copper pipes is improved.

Description

Technical Field

[0001] The invention relates to the technical field of welding tools for air-conditioning refrigeration copper tubes, and in particular to a welding device for air-conditioning refrigeration copper tubes. Background Art

[0002] Air conditioning refrigeration copper pipe welding device is an indispensable equipment in the manufacturing, installation and maintenance of refrigeration and air conditioning. It is essential to ensure the normal operation of the refrigeration system; The following is an introduction to the existing air-conditioning refrigeration copper tube welding device and the existing problems: First, it is inconvenient to handle impurities on the surface of the copper tube: it is difficult to perform rotating and circumferential impurity heat treatment on the refrigeration copper tube with traditional welding methods, resulting in a lot of time to clean the impurities on the surface of the copper tube before welding; the welding effect is not good: the lack of effective preliminary welding means can easily lead to cold welding or uneven welding points during welding; secondly, the operation flexibility is poor: it is difficult for traditional welding devices to select automatic or manual welding operations according to needs, and it is not easy to switch the copper tube from a vertical state to a horizontal state, which reduces the applicability of the welding operation; the welding convenience is low: workers need to change position or change direction during welding, which increases the difficulty and time cost of welding; at the same time, the secondary welding is difficult: it is difficult to achieve secondary welding at the joint of two copper tubes with traditional welding methods, and the controllability and distance regulation requirements of the automatic welding robot arm are difficult to meet; therefore, the above problems are now improved and solved. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a welding device for air-conditioning refrigeration copper pipes.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a welding device for air-conditioning refrigeration copper pipes, comprising a base and a cooling box installed on one side of the top of the base, a door frame is installed at the rear end of the top surface of the base, a transverse movement groove is horizontally opened in the middle of the top surface of the base, a rotating disk is horizontally slidably provided in the middle of the top surface of the base, columns are vertically installed on both sides of the inner bottom surface of the rotating disk, an annular table is rotatably installed between the tops of the two columns, and an electric rotating chuck for clamping the refrigeration copper pipe is installed on the top of the annular table; a rack plate is horizontally provided at the bottom of the front end surface of the door frame, and an outer ring wall of the rotating disk is sleeved with an outer ring that cooperates with the rack plate gear ring; a lifting plate is slidably provided on the other side of the front end face of the gantry, an electric push cylinder is provided on the front end face of the lifting plate, a connecting component is installed on the telescopic end of the electric push cylinder, a U-shaped frame with an opening facing forward is installed on one side of the connecting component, and a heating mechanism is installed on the U-shaped frame; an L-shaped plate is vertically slidably provided on the rear end face of the cooling box, and a driving component for lifting the L-shaped plate is provided inside the cooling box; a hot melt mechanism is provided at the bottom front end of the L-shaped plate, a fixed frame is provided at the top front end of the L-shaped plate, a T-shaped sliding seat is slidably provided in the fixed frame, and an automatic welding robot arm for welding refrigeration copper pipes is installed on the outer end of the sliding seat extending out of the fixed frame.

[0005] Preferably, both sides of the annular table are provided with rotating shafts rotatably connected to the columns; a driving cavity is opened in the top of one of the columns, a reduction motor is installed inside the driving cavity, and the outer end of the rotating shaft on one side of the annular table is movably inserted into the driving cavity and coaxially fixed to the reduction motor.

[0006] Preferably, an electric telescopic rod is vertically installed in the middle of the top surface of the rotating disk, and a top cone block is rotatably installed on the top of the telescopic end of the electric telescopic rod, and the top center of the top cone block is perpendicular to the center of the electric rotating chuck and is located on the same axial line.

[0007] Preferably, an adjustment component for lifting and lowering the lifting plate is provided inside the door frame, and the adjustment component includes a first screw rod vertically rotating inside the door frame, and a servo motor for driving the first screw rod is provided in the upper part of the door frame, a threaded tube is sleeved on the first screw rod, and a connecting block is provided at the front end of the threaded tube, and a lifting strip opening is vertically opened on the door frame behind the lifting plate, and the front end of the connecting block extends from the lifting strip opening and is fixedly connected to the lifting plate.

[0008] Preferably, a second screw is provided in the transverse groove for horizontal rotation, a movable seat is sleeved on the second screw, a driving motor is installed on one side of the inner part of the base, and the motor shaft of the driving motor is coaxially fixed to one end of the second screw; a connecting groove is provided on the top surface of the movable seat, a damping bearing is provided in the connecting groove, a support shaft is vertically fixed to the middle part of the bottom end of the rotating disk, and the bottom end of the support shaft is fixed to the inner ring of the damping bearing.

[0009] Preferably, the driving assembly includes a third screw rod which is vertically rotatable and arranged at the rear of the cooling box, a threaded barrel which is sleeved on the third screw rod, a connecting plate which is fixed to the rear end of the threaded barrel, and a driving motor which is coaxially fixed to the bottom end of the third screw rod. A rectangular strip is vertically opened on the rear end face of the cooling box, and the rear end of the connecting plate extends from the rectangular strip and is fixedly connected to the L-shaped plate. A protective shell is provided in front of the third screw rod, a supporting plate is installed on the upper part of the cooling box, an air cooler is installed on the top of the supporting plate, and a plurality of blowing nozzles are installed on both sides of the bottom surface of the supporting plate, the top end of the blowing nozzle is fixedly connected to the air outlet end of the air cooler, and a through opening for the passage of a refrigeration pipe is horizontally opened in the middle part of one side of the cooling box.

[0010] Preferably, a lead screw is longitudinally rotated inside the fixed frame, a motor for lead screw driving is installed at the rear end of the fixed frame, a threaded hole is provided on the sliding seat to cooperate with the lead screw, and the rod body of the lead screw passes through the threaded hole of the sliding seat.

[0011] Preferably, the hot melt mechanism includes an adjustment groove opened at the bottom of the front end of the L-shaped plate, a positioning shaft that is laterally rotatable at the front and rear ends of the adjustment groove, an insulating mounting seat with the top fixed to the positioning shaft, an electrode heating plate installed at the bottom end of the insulating mounting seat, and a driving gear that is rotatable between the two positioning shafts, and the top end of the insulating mounting seat is sleeved with an external gear sleeve that meshes with the driving gear; the electrode heating plate is an arc-shaped plate, and the inner arc surfaces of the two electrode heating plates are arranged opposite to each other, and a low-speed motor for driving the gear to rotate is installed on one side of the inner side of the front end of the L-shaped plate.

[0012] Preferably, the connecting assembly includes a horizontal plate laterally fixed to the front end of the telescopic end of the electric push cylinder, a hinge groove opened at the suspended end of the horizontal plate, a pin shaft rotatably arranged inside the hinge groove, a connecting seat fixedly sleeved on the pin shaft, and a self-locking motor arranged at the rear end of the horizontal plate, the front end of the driving shaft of the self-locking motor is coaxially fixed to the pin shaft, and the outer end of the connecting seat is fixed to the outer wall of one end of the U-shaped frame.

[0013] Preferably, the heating mechanism includes an annular groove opened in the upper part of the U-shaped frame, a C-shaped swivel rotatably arranged inside the annular groove, a plurality of heating nozzles equidistantly installed on the inner ring wall of the C-shaped swivel, and a transmission gear rotatably arranged at the front end of both sides of the annular groove, an insulation box is installed below the annular groove, an explosion-proof motor for driving the transmission gear is arranged inside the insulation box, the C-shaped swivel groove is arranged forward, and a plurality of external teeth are equidistantly arranged on the outer ring wall of the C-shaped swivel, and the transmission gear is meshed with the external teeth on the outer wall of the C-shaped swivel.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention facilitates the rotation and surrounding impurity heat treatment of the welded refrigeration copper tube through the cooperation of the electric rotating chuck, the heating mechanism and the connecting assembly, and can play a role in preliminary welding of the refrigeration copper tube. At the same time, it can select automatic rotating welding operation or manual welding operation according to needs, which is convenient for switching the copper tube from a vertical state to a horizontal state, and is convenient for improving the applicability of the device in welding different copper tubes; 2. The present invention is convenient for workers to perform welding operations on the copper pipe joint around the front side of the copper pipe by setting a heating mechanism, without the need for position change or direction change during welding, thereby improving the convenience of welding refrigeration copper pipes, and being able to quickly remove impurities on the surface of the copper pipe before welding, effectively avoiding the occurrence of cold welding or uneven welding points at the copper pipe joint during welding; 3. The present invention, through the cooperation of the hot melt mechanism with the drive assembly and the automatic welding robot arm, can enable the two electrode heating plates to alternately heat the copper tube again, so as to facilitate the secondary welding of the butt joint of the two copper tubes. At the same time, it can improve the controllability and distance control requirements of the automatic welding robot arm for welding the copper tube butt joint. In addition, during the process of the automatic welding robot arm welding the copper tube, there is no need for the automatic welding robot arm to perform welding operations around the copper tube, which effectively improves the convenience and efficiency of the copper tube welding operation and greatly improves the work efficiency of the copper tube welding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings: Figure 1 It is a schematic diagram of the overall first-view structure of the present invention; Figure 2 It is a schematic diagram of the overall second viewing angle structure of the present invention; Figure 3 It is a schematic diagram of the overall third viewing angle structure of the present invention; Figure 4 It is a schematic diagram of the overall local structure of the present invention; Figure 5 It is a schematic diagram of the internal structure of the cooling box and the gantry from a first perspective of the present invention; Figure 6 A schematic diagram of the cooling box and the internal structure of the gantry from a second viewing angle of the present invention; Figure 7 A schematic diagram of the internal structure of the cooling box and the gantry of the present invention from a third viewing angle; Figure 8 A schematic diagram of the cooling box and the internal structure of the gantry of the present invention from a fourth viewing angle; Fig. 9 It is a schematic diagram of the positional relationship between the rotating disk, the U-shaped frame and the L-shaped plate of the present invention; Fig.10 It is a schematic diagram of the positional relationship between the rotating disk and the electric rotating chuck of the present invention; Fig.11 It is a schematic diagram of the positional relationship between the outer gear ring, the rack plate and the rotating disk of the present invention; Fig.12 It is a schematic diagram of the structure of the internal reduction motor and the annular platform of the column of the present invention; Fig.13 It is a schematic diagram of the structure of the driving assembly and the hot melt mechanism of the present invention; Fig.14 It is a schematic diagram of the hot melt mechanism and automatic welding robot arm structure of the present invention; Fig.15 It is a schematic structural diagram of the hot melt mechanism of the present invention from a first viewing angle; Fig.16 It is a structural schematic diagram of the hot melt mechanism of the present invention from a second viewing angle; Fig.17 It is a schematic diagram of the lifting plate, electric push cylinder and U-shaped frame structure of the present invention; Fig.18 It is a schematic diagram of the structure of the U-shaped frame and the connecting components of the present invention; Fig.19 It is a schematic diagram of the structure of the heating mechanism and the connecting assembly of the present invention; Fig. 20 It is a schematic diagram of the internal structure of the heating mechanism of the present invention.

[0016] The serial numbers in the figure are: 1, base; 2, cooling box; 3, door frame; 4, rotating plate; 5, column; 6, ring table; 7, lifting plate; 8, electric push cylinder; 9, U-shaped frame; 10, L-shaped plate; 11, fixed frame; 12, automatic welding robot arm; 13, first screw; 14, servo motor; 15, second screw; 16, drive motor; 17, electric rotating chuck; 18, electric telescopic rod; 19, top cone block; 20, outer gear ring; 2 1. Rack plate; 22. Third screw; 23. Air cooler; 24. Blowing nozzle; 25. Reduction motor; 26. Lead screw; 27. Motor; 28. Sliding seat; 29. ​​Positioning shaft; 30. Electrode heating plate; 31. Driving gear; 32. External gear sleeve; 33. Cross plate; 34. Connecting seat; 35. Self-locking motor; 36. C-type swivel; 37. Heating nozzle; 38. Transmission gear; 39. Explosion-proof motor; 40. External teeth. DETAILED DESCRIPTION

[0017] 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.

[0018] Example 1: See Figures 1 to 20 A welding device for air-conditioning refrigeration copper pipes comprises a base 1 and a cooling box 2 installed on one side of the top of the base 1, a door frame 3 is installed at the rear end of the top surface of the base 1, a transverse movement groove is horizontally opened in the middle of the top surface of the base 1, a rotating disk 4 is horizontally slidably provided in the middle of the top surface of the base 1, columns 5 are vertically installed on both sides of the inner bottom surface of the rotating disk 4, a ring platform 6 is rotatably installed between the tops of the two columns 5, and an electric rotating chuck 17 for clamping the refrigeration copper pipe is installed on the top of the ring platform 6; a rack plate 21 is horizontally provided at the bottom of the front end surface of the door frame 3, and the rotating disk 4 is provided with a plurality of rotating chucks 17 for clamping the refrigeration copper pipe. An outer gear ring 20 that cooperates with the rack plate 21 is sleeved on the outer ring wall; a lifting plate 7 is slidably provided on the other side of the front end face of the door frame 3, and an electric push cylinder 8 is provided on the front end face of the lifting plate 7, and a connecting component is installed on the telescopic end of the electric push cylinder 8, and a U-shaped frame 9 with an opening facing forward is installed on one side of the connecting component, and a heating mechanism is installed in the U-shaped frame 9; an L-shaped plate 10 is vertically slidably provided on the rear end face of the cooling box 2, and a driving component for lifting and lowering the L-shaped plate 10 is provided inside the cooling box 2; a hot melt mechanism is provided at the front end bottom of the L-shaped plate 10, and a fixed frame 11 is provided at the front end top of the L-shaped plate 10 A T-shaped sliding seat 28 is slidably provided in the fixed frame 11, and an automatic welding robot arm 12 for refrigeration copper pipe welding is installed on the outer end of the sliding seat 28 extending out of the fixed frame 11; both sides of the annular table 6 are provided with a rotating shaft rotatably connected to the column 5; a driving cavity is opened in the top of one of the columns 5, and a reduction motor 25 is installed inside the driving cavity. The outer end of the rotating shaft on one side of the annular table 6 is movably penetrated into the driving cavity and is coaxially fixed to the reduction motor 25; an electric telescopic rod 18 is vertically installed in the middle of the top surface of the rotating disk 4, and the top of the telescopic end of the electric telescopic rod 18 rotates A top cone block 19 is installed, and the top center of the top cone block 19 is perpendicular to the center of the electric rotating chuck 17 and is located at the same axial position; through the cooperation of the electric rotating chuck 17 with the heating mechanism and the connecting component, it is convenient to realize the rotating and surrounding impurity heat treatment of the welded refrigeration copper tube, and can play a role in preliminary welding of the refrigeration copper tube. At the same time, automatic rotary welding operation or manual welding operation can be selected according to needs, which is convenient for switching the copper tube from a vertical state to a horizontal state, so as to improve the applicability of the device in welding operations on different copper tubes.

[0019] In the present invention, an adjusting component for lifting and lowering the lifting plate 7 is provided inside the door frame 3, and the adjusting component includes a first screw 13 vertically rotatingly arranged inside the door frame 3, and a servo motor 14 for driving the first screw 13 is provided in the upper part of the door frame 3, a threaded tube is sleeved on the first screw 13, and a connecting block is provided at the front end of the threaded tube, and a lifting strip opening is vertically opened on the door frame 3 behind the lifting plate 7, and the front end of the connecting block extends from the lifting strip opening and is fixedly connected to the lifting plate 7; a second screw 15 is provided for horizontal rotation in the transverse groove, and a moving seat is sleeved on the second screw 15, and a driving motor 16 is installed on one side of the base 1, and the motor shaft of the driving motor 16 is coaxially fixed to one end of the second screw 15; a connecting groove is provided on the top surface of the moving seat, and a damping bearing is provided in the connecting groove, and a support shaft is vertically fixedly connected to the middle of the bottom end of the rotating disk 4, and the bottom end of the support shaft is fixedly connected to the inner ring of the damping bearing.

[0020] Embodiment 2: The technical solution is basically the same as that of Embodiment 1, except that Figures 6 to 8 and Figures 13 to 16 As shown, the driving assembly includes a third screw 22 which is vertically rotatable and arranged at the rear of the cooling box 2, a threaded barrel sleeved on the third screw 22, a connecting plate fixedly connected to the rear end of the threaded barrel, and a driving motor coaxially fixedly connected to the bottom end of the third screw 22. A rectangular opening is vertically opened on the rear end surface of the cooling box 2, and the rear end of the connecting plate extends from the rectangular opening and is fixedly connected to the L-shaped plate 10. A protective shell is provided in front of the third screw 22, a support plate is installed on the upper part of the cooling box 2, an air cooler 23 is installed on the top of the support plate, and two sides of the bottom surface of the support plate are installed A plurality of blowing nozzles 24 are provided, and the top ends of the blowing nozzles 24 are fixedly connected to the air outlet ends of the air cooler 23; a through hole for the passage of the refrigeration pipe is horizontally provided in the middle of one side of the cooling box 2; a ventilation port is provided in the upper part of the front end surface of the cooling box 2, and a dustproof mesh plate is installed inside the ventilation port, and a control panel is installed in the middle of the front end surface of the cooling box 2; by starting the air cooler 23, the cooling air is sprayed onto the welding points of the copper tubes through the blowing nozzles 24, thereby quickly cooling the copper tubes after welding, thereby improving the work efficiency of the welding process on the copper tubes.

[0021] In the present invention, a lead screw 26 is longitudinally rotated inside the fixed frame 11, a motor 27 for driving the lead screw 26 is installed at the rear end of the fixed frame 11, a threaded hole is provided on the sliding seat 28 to cooperate with the lead screw 26, and the rod body of the lead screw 26 passes through the threaded hole of the sliding seat 28; the hot melt mechanism includes an adjustment groove provided at the bottom of the front end of the L-shaped plate 10, a positioning shaft 29 that is horizontally rotated at the front and rear ends of the adjusting groove, an insulating mounting seat with the top fixed to the positioning shaft 29, an electrode heating plate 30 installed at the bottom of the insulating mounting seat, and a driving gear 31 that is rotatably arranged between the two positioning shafts 29, and the top of the insulating mounting seat is sleeved with an external gear sleeve 32 that meshes with the driving gear 31; the electrode heating plate 30 is an arc-shaped plate, and the two electrode heating plates 30 are The inner arc surfaces are arranged opposite to each other; a low-speed motor for driving the gear 31 to rotate is installed on one side of the inner front end of the L-shaped plate 10; through the cooperation of the hot melt mechanism, the drive component and the automatic welding robot arm 12, the two electrode heating plates 30 can alternately heat the copper tube again, which is convenient for the secondary welding of the butt joint of the two copper tubes, and at the same time can improve the controllability and distance control requirements of the automatic welding robot arm 12 for welding the copper tube butt joint, and in the process of the automatic welding robot arm 12 welding the copper tube, there is no need for the automatic welding robot arm 12 to perform welding operations around the copper tube, which effectively improves the convenience and efficiency of the copper tube welding operation, and greatly improves the work efficiency of the copper tube welding processing.

[0022] Embodiment 3: The technical solution is basically the same as that of Embodiment 1, except that Figures 17 to 20As shown, the connecting assembly includes a horizontal plate 33 laterally fixed to the front end of the telescopic end of the electric push cylinder 8, a hinge groove provided at the suspended end of the horizontal plate 33, a pin shaft rotatably provided inside the hinge groove, a connecting seat 34 fixedly sleeved on the pin shaft and a self-locking motor 35 provided at the rear end of the horizontal plate 33, the front end of the driving shaft of the self-locking motor 35 is coaxially fixed to the pin shaft, and the outer end of the connecting seat 34 is fixed to the outer wall of one end of the U-shaped frame 9; the heating mechanism includes an annular groove provided in the upper part of the U-shaped frame 9, a C-shaped swivel 36 rotatably provided inside the annular groove, a plurality of heating nozzles 37 equidistantly installed on the inner wall of the C-shaped swivel 36 and a transmission gear 38 rotatably provided at the front ends of both sides of the annular groove, an insulation box is installed below the annular groove, an explosion-proof motor 39 for driving the transmission gear 38 is provided inside the insulation box, the notch of the C-shaped swivel 36 is arranged forward, and A plurality of external teeth 40 are equidistantly arranged on the outer ring wall of the C-shaped swivel 36, and the transmission gear 38 meshes with the external teeth 40 on the outer wall of the C-shaped swivel 36; by starting the self-locking motor 35, the connecting seat 34 can be driven to swing up and down, and then the U-shaped frame 9 can be deflected upward or downward by ninety degrees. When the U-shaped frame 9 is turned over to an upright state, the copper tube in a horizontal state can also be heated; by setting the heating mechanism, it is convenient for workers to weld the copper tube joint around the front side of the copper tube without the need for position change or direction change during welding, thereby improving the convenience of welding the refrigeration copper tube, and being able to quickly remove impurities on the surface of the copper tube before welding, effectively avoiding the occurrence of cold welding or uneven welding points at the copper tube joint during welding.

[0023] Working principle: In this embodiment, the present invention also proposes a method for using a welding device for air-conditioning refrigeration copper pipes, comprising the following steps: Step 1: First, power on all electrical appliances in the device, then place two refrigeration copper tubes to be welded together on the electric rotating chuck 17. At this time, the joint of the two copper tubes to be welded is located above the electric rotating chuck 17. Then, start the electric telescopic rod 18 to drive the top cone block 19 to rise. The raised top cone block 19 abuts against the bottom of the copper tube, so that the electric rotating chuck 17 can be used to adjust the clamped copper tube by a small amplitude during the welding process. The support of the top cone block 19 to the bottom end of the copper tube can also prevent the copper tube placed in the electric rotating chuck 17 from falling when it is not clamped. Step 2: Then, according to the positions of the two copper tubes to be welded, the servo motor 14 is started to drive the first screw 13 to rotate, and the rotating first screw 13 drives the lifting plate 7 to be lifted and lowered, and the lowered lifting plate 7 drives the electric push cylinder 8 and the U-shaped frame 9 installed at its front end through the connecting assembly to be synchronously lowered, so that the U-shaped frame 9 with the heating mechanism is lowered to the height position of the copper tube to be welded; Step three, then start the electric push cylinder 8 to drive the cross plate 33 to move forward, and the forward-moving cross plate 33 drives the U-shaped frame 9 connected to the connecting seat 34 to move forward, and the forward-moving U-shaped frame 9 drives the C-shaped swivel 36 to put the copper tube to be welded into the inner ring, and then start a plurality of heating nozzles 37 to perform a surface heat treatment cleaning operation on the copper tube located in the inner ring of the C-shaped swivel 36, so that impurities in the part to be welded of the copper tube can be removed, and in order to ensure that the heated copper tube can be heated evenly, the explosion-proof motor 39 is started to drive the transmission gear 38 to rotate, and the transmission gear 38 is meshed with the outer outer teeth 40 of the C-shaped swivel 36, so that the C-shaped swivel 36 can be driven to rotate horizontally in the rotating groove of the U-shaped frame 9, and the horizontally rotating C-shaped swivel 36 will drive the heating nozzle 37 to rotate and heat around the copper tube, so that the copper tube to be welded is evenly heated and cleaned of impurities; Step 4, the copper pipe is placed vertically in the heating and heating state. When the copper pipe is heated and initially welded, the worker can use an external welding gun to weld the butt joints of the two copper pipes. When the butt joints are welded manually, the electric rotating chuck 17 is started to drive the clamped copper pipe to rotate, so that the worker can weld the copper pipe butt joint around the front side of the copper pipe without the need for position change or direction change during welding, thereby improving the convenience of welding the refrigeration copper pipe and being able to quickly remove impurities on the surface of the copper pipe before welding, effectively avoiding the occurrence of cold welding or uneven welding points at the butt joints of the copper pipe during welding; Step five, when automatic welding is required, the copper tube is adjusted to a horizontal state after being heated to remove impurities. When the copper tube is adjusted horizontally after heating, it is first reset to the heating structure, and the electric push cylinder 8 is started to drive the U-shaped frame 9 to reset and retreat, so that the C-shaped rotating ring 36 withdraws from surrounding the copper tube; then the driving motor 16 is started to drive the second screw 15 to reverse, and the reversed second screw 15 drives the moving seat to move toward the cooling box 2, and the rotating disk 4 is driven to move toward the cooling box 2 through the horizontal moving seat. In the process of the rotating disk 4 moving toward the cooling box 2, the outer gear ring 20 on the rotating disk 4 will mesh with the rack plate 21 on the front end side of the door frame 3. , and then the rotating disk 4 can rotate ninety degrees when passing in front of the rack plate 21, thereby completing the horizontal angle switching operation of the annular table 6, and then the electric rotating chuck 17 is used to loosen the clamping of the copper tube, and the electric telescopic rod 18 is started to drive the top cone block 19 to descend, and the copper tube that has lost the clamping force can be driven to descend by the descending top cone block 19, and then the reduction motor 25 is started to drive the annular table 6 to rotate from a horizontal state to an upright state; and then the electric rotating chuck 17 on the annular table 6 is driven to switch to an upright state, so that the copper tube is switched to a horizontal state, and then the electric telescopic rod 18 is started again to drive the top cone block 19 to push the copper tube toward the cooling box 2; Step six, after the electric telescopic rod 18 drives the top cone block 19 to complete the pushing of the copper tube, the electric rotary chuck 17 is started to clamp the copper tube again, and then the driving assembly is started to drive the L-shaped plate 10 to descend, and the descending L-shaped plate 10 drives the hot melt mechanism and the automatic welding robot arm 12 to descend. At this time, the horizontal pipe body weld is located between the two electrode heating plates 30, and then the low-speed motor is started to drive the driving gear 31 to rotate. The rotating driving gear 31 can drive one of the electrode heating plates 30 to be close to the copper tube, and the other electrode heating plate 30 is away from the copper tube, so that the two electrode heating plates 30 can be exchanged to heat up the copper tube again, so as to avoid excessive high temperature of a single electrode heating plate 30. The situation is convenient for secondary welding of the butt joint of the two copper pipes, and then the lead screw 26 is driven to rotate by starting the motor 27, and the rotating lead screw 26 can drive the sliding seat 28 to move forward and backward in the fixed frame 11, so that the position of the automatic welding robot arm 12 on the fixed frame 11 can be adjusted to move forward and backward, which is convenient for improving the controllability and distance control requirements of the automatic welding robot arm 12 for welding the copper pipe butt joint, and in the process of the automatic welding robot arm 12 welding the copper pipe, the electric rotating chuck 17 is started to drive the copper pipe to rotate, so as to achieve the purpose of automatically rotating the copper pipe, and the automatic welding robot arm 12 does not need to perform welding operations around the copper pipe, thereby improving the convenience and efficiency of the copper pipe welding operation; Step seven, after the copper tube is welded, in order to quickly shape and cool the weld of the copper tube, the electric telescopic rod 18 is started to drive the top cone block 19 to push the copper tube toward the through-hole of the cooling box 2 again, and then the air cooler 23 is started to spray the air cooling on the weld of the copper tube through the blowing nozzle 24, thereby quickly cooling the welded copper tube and improving the work efficiency of the copper tube welding process. Finally, each mechanism is reset, and the copper tube after welding and cooling is removed from the electric rotating chuck 17.

[0024] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A welding device for air conditioning refrigeration copper pipes, comprising a base (1) and a cooling box (2) mounted on one side of the top of the base (1), characterized in that: A door frame (3) is installed at the rear end of the top surface of the base (1), a transverse shift groove is horizontally opened in the middle of the top surface of the base (1), a rotating disk (4) is horizontally slidably installed in the middle of the top surface of the base (1), columns (5) are vertically installed on both sides of the inner bottom surface of the rotating disk (4), a ring table (6) is rotatably installed between the tops of the two columns (5), and an electric rotating chuck (17) for clamping the refrigeration copper pipe is installed on the top of the ring table (6); A rack plate (21) is transversely disposed at the bottom of the front end surface of the door frame (3); an outer toothed ring (20) that cooperates with the rack plate (21) is sleeved on the outer ring wall of the rotating disk (4); A lifting plate (7) is slidably provided on the other side of the front end surface of the door frame (3), an electric push cylinder (8) is provided on the front end surface of the lifting plate (7), a connecting component is installed at the telescopic end of the electric push cylinder (8), a U-shaped frame (9) with an opening facing forward is installed on one side of the connecting component, and a heating mechanism is installed in the U-shaped frame (9); An L-shaped plate (10) is vertically slidably disposed on the rear end surface of the cooling box (2), and a driving assembly for lifting the L-shaped plate (10) is disposed inside the cooling box (2); a hot melt mechanism is disposed at the bottom of the front end of the L-shaped plate (10); A fixed frame (11) is provided at the top of the front end of the L-shaped plate (10), a T-shaped sliding seat (28) is slidably provided inside the fixed frame (11), and an automatic welding robot arm (12) for welding refrigeration copper pipes is installed at the outer end of the sliding seat (28) extending out of the fixed frame (11).

2. A welding device for air conditioning refrigeration copper tubes according to claim 1, characterized in that: Both sides of the annular platform (6) are provided with rotating shafts rotatably connected to the columns (5); a driving cavity is opened in the top of one of the columns (5), and a reduction motor (25) is installed inside the driving cavity. The outer end of the rotating shaft on one side of the annular platform (6) is movably inserted into the driving cavity and is coaxially fixedly connected to the reduction motor (25).

3. A welding device for air conditioning refrigeration copper tubes according to claim 1, characterized in that: An electric telescopic rod (18) is vertically mounted in the middle of the top surface of the rotating disk (4), a top cone block (19) is rotatably mounted on the top of the telescopic end of the electric telescopic rod (18), and the top center of the top cone block (19) is perpendicular to the center of the electric rotating chuck (17) and is located on the same axis.

4. A welding device for air conditioning refrigeration copper tubes according to claim 3, characterized in that: An adjusting component for lifting the lifting plate (7) is provided inside the door frame (3), the adjusting component comprising a first screw rod (13) which is arranged inside the door frame (3) and is arranged to rotate vertically, a servo motor (14) which is used to drive the first screw rod (13) is provided inside the upper part of the door frame (3), a threaded tube is sleeved on the first screw rod (13), a connecting block is provided at the front end of the threaded tube, a lifting strip opening is vertically opened on the door frame (3) behind the lifting plate (7), and the front end of the connecting block extends from the lifting strip opening and is fixedly connected to the lifting plate (7).

5. The welding device for air conditioning refrigeration copper tube according to claim 1, characterized in that: A second screw rod (15) is provided in the transverse displacement groove for transverse rotation, a movable seat is sleeved on the second screw rod (15), a driving motor (16) is installed on one side of the interior of the base (1), and a motor shaft of the driving motor (16) is coaxially fixedly connected to one end of the second screw rod (15); The top surface of the movable seat is provided with a connection groove, a damping bearing is arranged in the connection groove, a support shaft is vertically fixedly connected to the middle of the bottom end of the rotating disk (4), and the bottom end of the support shaft is fixedly connected to the inner ring of the damping bearing.

6. A welding device for air conditioning refrigeration copper tubes according to claim 1, characterized in that: The driving assembly comprises a third screw (22) which is arranged at the rear of the cooling box (2) for vertical rotation, a threaded barrel sleeved on the third screw (22), a connecting plate fixedly connected to the rear end of the threaded barrel, and a driving motor coaxially fixedly connected to the bottom end of the third screw (22); a rectangular opening is vertically opened on the rear end surface of the cooling box (2), and the rear end of the connecting plate extends from the rectangular opening and is fixedly connected to the L-shaped plate (10); A protective shell is provided in front of the third screw rod (22); a support plate is installed on the upper part of the cooling box (2); an air cooler (23) is installed on the top of the support plate; a plurality of air blowing nozzles (24) are installed on both sides of the bottom surface of the support plate; the top of the air blowing nozzle (24) is fixedly connected to the air outlet end of the air cooler (23); and a through hole for the cooling pipe to pass through is horizontally opened in the middle of one side of the cooling box (2).

7. The welding device for air-conditioning refrigeration copper tube according to claim 1, characterized in that: A lead screw (26) is provided inside the fixed frame (11) for longitudinal rotation. A motor (27) for driving the lead screw (26) is installed at the rear end of the fixed frame (11). A threaded hole is provided on the sliding seat (28) to match the lead screw (26). The rod body of the lead screw (26) passes through the threaded hole of the sliding seat (28).

8. A welding device for air-conditioning refrigeration copper tubes according to claim 7, characterized in that: The hot melt mechanism comprises an adjustment groove provided at the bottom of the front end of the L-shaped plate (10), a positioning shaft (29) rotatably arranged at the front and rear ends of the adjustment groove, an insulating mounting seat with the top end fixedly connected to the positioning shaft (29), an electrode heating plate (30) mounted at the bottom end of the insulating mounting seat, and a driving gear (31) rotatably arranged between the two positioning shafts (29), wherein the top end of the insulating mounting seat is sleeved with an external gear sleeve (32) meshing with the driving gear (31); the electrode heating plate (30) is in the shape of an arc plate, and the inner arc surfaces of the two electrode heating plates (30) are arranged opposite to each other, and a low-speed motor for driving the gear (31) to rotate is installed on one side of the inner side of the front end of the L-shaped plate (10).

9. The welding device for air-conditioning refrigeration copper tube according to claim 1, characterized in that: The connection assembly comprises a horizontal plate (33) laterally fixed to the front end of the telescopic end of the electric push cylinder (8), a hinge groove opened at the suspended end of the horizontal plate (33), a pin shaft rotatably arranged inside the hinge groove, a connecting seat (34) fixedly sleeved on the pin shaft, and a self-locking motor (35) arranged at the rear end of the horizontal plate (33), wherein the front end of the driving shaft of the self-locking motor (35) is coaxially fixed to the pin shaft, and the outer end of the connecting seat (34) is fixed to the outer wall of one end of the U-shaped frame (9).

10. A welding device for air conditioning refrigeration copper tubes according to claim 9, characterized in that: The temperature raising mechanism comprises an annular groove formed in the upper part of the U-shaped frame (9), a C-shaped rotating ring (36) rotatably arranged inside the annular groove, a plurality of heating nozzles (37) equidistantly installed on the inner wall of the C-shaped rotating ring (36), and a transmission gear (38) rotatably arranged at the front ends of both sides of the annular groove, a temperature insulation box is installed below the annular groove, an explosion-proof motor (39) for driving the transmission gear (38) is arranged inside the temperature insulation box, the notch of the C-shaped rotating ring (36) is arranged forward, and a plurality of external teeth (40) are equidistantly arranged on the outer wall of the C-shaped rotating ring (36), and the transmission gear (38) meshes with the external teeth (40) on the outer wall of the C-shaped rotating ring (36).

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