A welding device and method based on constant temperature and humidity precision air conditioning assembly

Abstract

The present invention discloses a welding device and method based on constant temperature and humidity precision air conditioning assembly, and the present invention relates to the technical field of welding equipment. By sequentially arranging a plurality of refrigeration copper tube clamping mechanisms on a turntable, a plurality of refrigeration copper tubes can be clamped on the plurality of refrigeration copper tube clamping mechanisms at the same time, and the refrigeration copper tube welding mechanism can be used to complete the welding of the refrigeration copper tube and the operation of removing the welded refrigeration copper tube from the refrigeration clamping mechanism during the time interval of the turntable intermittent rotation, so that the welding process has a high degree of automation, less manual intervention process, and the welding operation will not be affected during the process of disassembling and assembling the refrigeration copper tube, so that the welding process of the refrigeration copper tube can be carried out continuously, and the welding efficiency is greatly improved. The blowing component can blow away the impurities and dust on the outer wall of the refrigeration copper tube before welding, so as to avoid the situation of cold welding due to dust and impurities at the welding position, and the cooling speed of the welding seam position of the refrigeration copper tube can be accelerated after welding.

Description

Technical Field

[0001] The present invention relates to the technical field of welding equipment, and in particular to a welding device and method based on constant temperature and humidity precision air conditioning assembly. Background Art

[0002] Constant temperature and humidity precision air conditioning is an air conditioning system that can accurately control the ambient temperature and humidity. It is also called precision air conditioning or constant temperature and humidity machine. Its working principle is similar to that of ordinary air conditioning. It mainly adjusts the temperature by circulating the refrigerant in the air conditioning pipeline to absorb and release heat.

[0003] The assembly and welding process of constant temperature and humidity precision air conditioners involves multiple links such as the installation of refrigeration pipes, welding of refrigeration copper tubes, leak detection and testing. Among them, welding of refrigeration copper tubes is a key step in the assembly of constant temperature and humidity precision air conditioners.

[0004] An air-conditioning pipeline welding device disclosed in the patent application with reference publication number CN217859556U loads the air-conditioning pipeline through the placement part so that the hose of the air-conditioning pipeline can be extended into the upper water tank of the cooling component. During the welding process, the cooling water in the lower water tank is pumped into the water outlet component by the water pump, and the water outlet component accurately pours the cooling water on the hose part of the air-conditioning pipeline. Then, the cooling water will flow back into the lower water tank through the pipeline from the bottom of the upper water tank under the action of gravity. Since the lower water tank is far away from the high-temperature area of ​​the welding gun, the influence of the welding gun on the cooling water is reduced, so that the cooling water can dissipate heat in the process of flowing back to the lower water tank.

[0005] The above-mentioned vaccination device in the prior art has the following defects in actual use:

[0006] The welding equipment can only weld a single air conditioning pipeline when working, and the welding equipment cannot continue the welding operation when removing the welded air conditioning pipeline from the fixture, resulting in a slow welding speed and low efficiency of the air conditioning pipeline;

[0007] The above welding equipment cannot clean the weld position before welding the air-conditioning pipeline, which may easily lead to a cold weld at the weld position due to the influence of impurities, thereby reducing the structural strength of the weld position of the refrigeration copper pipe and making it impossible to weld stably.

[0008] Therefore, the present invention proposes a welding device and method based on constant temperature and humidity precision air conditioning assembly to solve the above problems. Summary of the invention

[0009] In view of the deficiencies in the prior art, the present invention provides a welding device and method based on constant temperature and humidity precision air conditioning assembly, which solves the problem that the existing welding equipment can only weld a single air-conditioning pipeline when working, and the welding equipment cannot continue the welding operation during the process of removing the welded air-conditioning pipeline from the fixture, resulting in a slow welding speed and low efficiency of the air-conditioning pipeline, and the weld position cannot be cleaned before welding the air-conditioning pipeline, which easily leads to the formation of cold welds at the weld position due to the influence of impurities, thereby reducing the structural strength of the weld position of the refrigeration copper tube and making it impossible to be stably welded.

[0010] To achieve the above objectives, the present invention is implemented through the following technical solutions: A welding device based on constant temperature and humidity precision air conditioning assembly, comprising a welding box and a No. 1 operating window and a No. 2 operating window respectively opened on the front and back of the welding box, wherein the No. 1 operating window and the No. 2 operating window are both rotatably provided with protective doors, and further comprising:

[0011] The turntable is rotatably arranged inside the welding box and is used to drive the batches of refrigeration copper tubes to be welded to intermittently reach the welding position to complete the welding operation;

[0012] Multiple refrigeration copper tube clamping mechanisms are evenly and fixedly arranged on the top of the turntable, which are used to automatically complete the clamping and locking of the refrigeration copper tube position before welding, and automatically unlock the position after welding is completed, so as to ensure the stability of the refrigeration copper tube welding process and facilitate quick disassembly after welding;

[0013] The refrigeration copper tube welding mechanism is arranged on one side of the top of the welding box, and is used to automatically reach the welding position when the refrigeration copper tube moves to the welding station, and switch to the welding execution state, and synchronously switch to the idle state after the refrigeration copper tube clamping mechanism leaves the welding station;

[0014] The first arc rack and the second arc rack are respectively fixed on the left and right sides of the top of the welding box through brackets, and are used to cooperate with the refrigeration copper tube clamping mechanism to complete the cleaning of the refrigeration copper tube welding position before welding and the cooling operation after welding.

[0015] Furthermore, the welding device also includes a protrusion 2 and an arc-shaped drive plate fixedly arranged on the top of the welding box and close to one side of the refrigeration copper tube welding mechanism. The arc-shaped drive plate and protrusion 2 are respectively used to cooperate with the refrigeration copper tube clamping mechanism to complete the clamping and locking of the refrigeration copper tube and the welding operation after clamping and locking.

[0016] Furthermore, the refrigeration copper tube clamping mechanism includes a transverse bracket detachably provided on the top of the turntable by bolts and a longitudinal bracket fixedly provided at both ends of the transverse bracket, the tops of the two longitudinal brackets are also fixedly provided with transverse support frames for limiting the position of the refrigeration copper tube, and the tops of each transverse support frame are fixedly provided with a longitudinal support frame for supporting the refrigeration copper tube, and the ends of the two longitudinal brackets away from the transverse brackets are detachably provided with welding positioning components for locking the refrigeration copper tube after limiting.

[0017] Furthermore, a switching component for controlling the refrigeration copper tube welding mechanism to enter a welding operation state or leave a welding state is fixedly arranged on the side wall of the transverse bracket and between the two welding positioning assemblies. The switching component includes a support plate fixedly arranged on the side wall of the transverse bracket, and two lifting rods are slidably penetrated inside the support plate. Limiting rings for limiting the lower limit of the downward movement of the lifting rods are fixedly sleeved on the outer walls of the two lifting rods, and a lifting plate is fixedly arranged on the bottom of the two lifting rods, and a protrusion 1 is fixedly arranged at the middle position of the bottom end of the lifting plate.

[0018] Furthermore, the welding positioning assembly includes a welding tube fixedly arranged at the end of the longitudinal bracket and an operating notch opened on the front side of the welding tube, a limiting hole for limiting the end position of the refrigeration copper tube is opened at the center position of the bottom of the inner cavity of the welding tube, and a plurality of ventilation holes are opened around the limiting hole at the bottom of the inner cavity of the welding tube, a blowing assembly for blowing air into the interior through the ventilation hole is also provided at the bottom of the welding tube, and a clamping assembly for locking the position of the refrigeration copper tube is provided at the top of the welding tube.

[0019] Furthermore, the blowing assembly includes an air guide tube fixedly arranged at the bottom of the welding tube and an air inlet opened at the bottom of the air guide tube, a transmission is fixedly arranged at the bottom of the air guide tube, a gear meshingly connected to the first arc rack or the second arc rack is fixedly arranged on the input shaft of the transmission, and the output shaft of the transmission rotates through the air guide tube and is fixedly provided with fan blades.

[0020] Furthermore, the clamping assembly includes a support arm movably arranged above the longitudinal bracket and a driving rod fixedly arranged at the bottom of the support arm, the bottom end of the driving rod slides through the longitudinal bracket and extends to the bottom, and a spring retaining ring is fixedly sleeved on the outer wall of the driving rod, and a spring 1 is slidably sleeved on the outer wall of the driving rod and located between the spring retaining ring and the longitudinal bracket.

[0021] A driving ring is fixedly provided at one end of the support arm, and a plurality of wedge blocks are evenly fixedly provided on the inner wall of the driving ring. A carrying ring is fixedly provided at the top end of the transverse bracket and located inside the driving ring. A plurality of mounting grooves are provided on the outer wall of the carrying ring and at positions corresponding to the positions of the wedge blocks. A baffle is fixedly provided on the inner wall of the mounting groove, and a clamping unit for clamping the refrigeration copper tube is also provided inside the baffle.

[0022] Furthermore, the clamping unit includes a clamping block that slides through the mounting groove and a wedge-shaped groove opened on the side wall of the clamping block. Guide rods are fixedly arranged on both sides of the outer wall of the clamping block through brackets. The guide rods slide through the baffle and extend to the interior of the inner bearing ring, and a spring 2 is provided on the outer wall of the guide rod and is located between the baffle and the bracket.

[0023] Furthermore, the refrigeration copper tube welding mechanism comprises a mounting seat fixedly arranged at the bottom of the inner cavity of the welding box and a No. 1 welding unit and a No. 2 welding unit respectively arranged at both sides of the top of the mounting seat;

[0024] The structure of the No. 1 welding unit is the same as that of the No. 2 welding unit. The No. 1 welding unit includes an L-shaped bracket fixedly arranged on the top of the mounting seat and an adjusting slot opened on the front of the L-shaped bracket. A lifting plate is slidably arranged inside the adjusting slot. A guide rod is fixedly arranged on both sides of the top of the lifting plate. The two guide rods slide through the L-shaped bracket and extend to the outside. A spring three is slidably sleeved on the outer wall of the guide rod and between the lifting plate and the adjusting slot.

[0025] A high-frequency induction heating ring and a pressure plate are fixedly arranged on the side walls of the lifting plate, respectively. The pressure plate is located below the high-frequency induction heating ring. A trigger block is fixedly arranged on the top of the lifting plate and between the two guide rods, and a trigger switch for controlling the on and off of the current in the high-frequency induction heating ring is fixedly arranged at the top of the adjusting slot and directly above the trigger block.

[0026] The present invention also discloses a welding method based on the assembly of a constant temperature and humidity precision air conditioner, which is used for a welding device based on the assembly of a constant temperature and humidity precision air conditioner. The method comprises the following steps:

[0027] Step 1: Place the refrigeration copper tube to be welded at a preset position in the refrigeration copper tube clamping mechanism through the No. 1 operation window on the front of the welding box for positioning;

[0028] Step 2, the turntable then drives the refrigeration copper tube clamping mechanism loaded with the refrigeration copper tube to rotate to the welding position of the refrigeration copper tube welding mechanism to complete the automatic locking of the refrigeration copper tube, and then the refrigeration copper tube welding mechanism performs a welding operation on the welding seam position of the refrigeration copper tube;

[0029] Step 3: When the welded refrigeration copper tube is rotated to the No. 1 operation window again, remove it, and then place the refrigeration copper tube to be welded again at the preset position in the refrigeration copper tube clamping mechanism to perform the next welding operation.

[0030] The present invention provides a welding device and method based on constant temperature and humidity precision air conditioning assembly. Compared with the prior art, it has the following beneficial effects:

[0031] 1. A welding device and method based on the assembly of a constant temperature and humidity precision air conditioner. By sequentially arranging a plurality of refrigeration copper tube clamping mechanisms on a turntable, a plurality of refrigeration copper tubes can be clamped on the plurality of refrigeration copper tube clamping mechanisms at the same time. The refrigeration copper tube welding mechanism can be used to complete the welding of the refrigeration copper tubes and remove the welded refrigeration copper tubes from the refrigeration clamping mechanism during the time interval of the intermittent rotation of the turntable, so that the welding process has a high degree of automation and less manual intervention. Only a small number of personnel are required to realize the batch welding operation of the refrigeration copper tubes of the air conditioner, and the welding operation will not be affected during the process of disassembling and assembling the refrigeration copper tubes, so that the welding process of the refrigeration copper tubes can be carried out continuously, and the welding efficiency is greatly improved.

[0032] 2. A welding device and method based on constant temperature and humidity precision air conditioning assembly, by arranging a blowing assembly in the welding positioning assembly, can use the first arc-shaped rack to drive the gear to rotate before welding, so as to provide power for the rotation of the fan blades, so that the fan blades can blow the external air into the welding tube, so as to achieve the purpose of blowing away the impurities and dust on the outer wall of the refrigeration copper tube, so as to keep the joint position of the refrigeration copper tube in a clean state before welding, avoid the situation of cold welding due to dust and impurities at the welding position, thereby improving the welding quality; and after welding, the second arc-shaped rack can drive the gear to rotate again, at this time, the air blown into the welding tube by the fan blades can speed up the cooling speed of the welding position of the refrigeration copper tube, so as to facilitate the subsequent removal of the refrigeration copper tube from the refrigeration copper tube clamping mechanism.

[0033] 3. A welding device and method based on the assembly of a constant temperature and humidity precision air conditioner. By arranging a horizontal support frame and a longitudinal support frame in the refrigeration copper tube clamping mechanism, the refrigeration copper tube to be welded can be pre-fixed before welding to prevent the position from shifting during the rotation of the turntable. By arranging a welding positioning assembly, it can realize further automatic locking operation when the refrigeration copper tube moves to the welding position, thereby preventing the refrigeration copper tube from shaking during the welding process, thereby ensuring that the weld position can be firmly welded. The clamping operation of the welding positioning assembly is realized by the upward pushing force of the arc driving plate during the rotation process. There is no need to set a power device separately for the clamping process of the welding positioning assembly, which not only saves manufacturing costs, but also makes the structure simpler and convenient for later inspection and maintenance. Moreover, after the welding positioning assembly loses the force of the arc driving plate, the clamping of the refrigeration copper tube can be released, which is not only convenient for the subsequent disassembly operation of the refrigeration copper tube, but also convenient for the subsequent rapid clamping operation of the refrigeration copper tube.

[0034] 4. A welding device and method based on constant temperature and humidity precision air conditioning assembly, by setting a refrigeration copper tube welding mechanism, its welding action can be linked with the movement process of the refrigeration copper tube clamping mechanism, so that when the refrigeration copper tube clamping mechanism loaded with the refrigeration copper tube moves to the welding position, the lifting plate in the refrigeration copper tube welding mechanism can be quickly moved up by the upward thrust of the lifting plate, so that the high-frequency induction heating ring can be sleeved on the outside of the welding tube and maintain the same height as the refrigeration copper tube joint, laying the foundation for precise welding of the weld position, and the high-frequency induction heating ring is controlled by the trigger block and the trigger switch, and the circuit inside the high-frequency induction heating ring is connected only in the welding state, and the internal current is cut off in the idle state, thereby saving energy loss.

[0035] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the first overall three-dimensional structure of the present invention;

[0037] Figure 2 It is a schematic diagram of the second overall three-dimensional structure of the present invention;

[0038] Figure 3 This is a schematic diagram of the first state structure of the internal structure of the present invention;

[0039] Figure 4 For the present invention Figure 3A part of the diagram is an enlarged schematic diagram of the three-dimensional structure;

[0040] Figure 5 This is a schematic diagram of the second state structure of the present invention;

[0041] Figure 6 For the present invention Figure 5 A schematic diagram of the enlarged structure of part B in FIG.

[0042] Figure 7 This is a schematic diagram of the structure of the first state of the present invention without the welding box;

[0043] Figure 8 For the present invention Figure 7 A schematic diagram of the enlarged structure of part C in FIG.

[0044] Fig. 9 This is a schematic diagram of the structure of the second state in which the welding box is removed according to the present invention;

[0045] Fig.10 For the present invention Fig. 9 The D part in the figure is an enlarged structural diagram;

[0046] Fig.11 This is a schematic diagram of the structure of the refrigeration copper tube clamping mechanism of the present invention;

[0047] Fig.12 This is a schematic diagram of the overall structure of the welding positioning assembly of the present invention;

[0048] Fig.13 This is a schematic diagram of the structure of the welding positioning assembly of the present invention in an exploded state;

[0049] Fig.14 It is a schematic diagram of the cross-sectional structure of the clamping assembly of the present invention;

[0050] Fig.15 This is a schematic diagram of the structure of the clamping assembly of the present invention in an exploded state;

[0051] Fig.16 For the present invention Fig.15 The enlarged structural diagram of part E in FIG.

[0052] Fig.17 This is a schematic structural diagram of the first state of the refrigeration copper tube welding mechanism of the present invention;

[0053] Fig.18 This is a schematic diagram of the structure of the refrigeration copper tube welding mechanism of the present invention in the second state;

[0054] Fig.19 For the present invention Fig.18 The enlarged structural diagram of part F in FIG.

[0055] Fig. 20 This is a schematic diagram of the refrigeration copper tube structure of the present invention.

[0056] In the figure: 1, welding box; 2, protective door; 3, turntable; 4, refrigeration copper tube clamping mechanism; 41, horizontal bracket; 42, vertical bracket; 43, horizontal support frame; 44, vertical support frame; 45, welding positioning assembly; 451, welding tube; 452, operation gap; 453, limit hole; 454, vent; 455, blowing assembly; a1, air guide tube; a2, transmission; a3, gear; a4, fan blade; 456, clamping assembly; b1, support arm; b2, drive rod; b3, spring retaining ring; b4, spring 1; b5, drive ring; b6, wedge block; b7, load-bearing ring; b8, mounting groove; b9 , clamping unit; b91, clamping block; b92, wedge groove; b93, guide rod; b94, spring two; b10, baffle; 46, support plate; 47, lifting rod; 48, limit ring; 49, lifting plate; 410, bump one; 5, refrigeration copper pipe welding mechanism; 51, mounting seat; 52, L-shaped bracket; 53, adjustment slot; 54, lifting plate; 55, guide rod; 56, spring three; 57, high-frequency induction heating ring; 58, pressure plate; 59, trigger block; 510, trigger switch; 6, arc rack number one; 7, arc rack number two; 8, bump two; 9, arc drive plate; c1, copper pipe; c2, joint. DETAILED DESCRIPTION

[0057] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0058] The present invention provides three technical solutions: a welding device based on constant temperature and humidity precision air conditioning assembly, specifically including the following embodiments:

[0059] like Figure 1-Figure 9 , 19 shows a first embodiment: a welding device based on constant temperature and humidity precision air conditioning assembly, comprising a welding box 1 and a No. 1 operating window and a No. 2 operating window respectively opened on the front and back of the welding box 1, wherein the No. 1 operating window and the No. 2 operating window are both rotatably provided with a protective door 2, and further comprising:

[0060] The turntable 3 is rotatably arranged inside the welding box 1, and is used to drive the batch of refrigeration copper tubes to be welded to intermittently reach the welding position to cooperate with the completion of the welding operation; the turntable 3 is driven to rotate by a servo motor, and the servo motor is fixedly arranged at the bottom of the welding box 1, and the output shaft of the servo motor rotates through the welding box 1 and is fixedly connected to the bottom of the turntable 3; the turntable 3 is rested for three minutes after each rotation of sixty degrees, which is used for the refrigeration copper tube welding mechanism 5 to perform the welding operation and the worker to re-place the refrigeration copper tube to be welded in the refrigeration copper tube clamping mechanism 4;

[0061] A plurality of refrigeration copper tube clamping mechanisms 4 are evenly and fixedly arranged on the top of the turntable 3, and are used to automatically complete the clamping and locking of the refrigeration copper tube position before welding, and automatically unlock the position after welding is completed, so as to ensure the stability of the refrigeration copper tube welding process and facilitate quick disassembly after welding; each time the turntable 3 rotates, a refrigeration copper tube clamping mechanism 4 enters the welding position opposite to the refrigeration copper tube welding mechanism 5;

[0062] The refrigeration copper tube welding mechanism 5 is arranged on one side of the top of the welding box 1, and is used to automatically reach the welding position when the refrigeration copper tube moves to the welding station, and enter the welding execution state. After the refrigeration copper tube clamping mechanism 4 leaves the welding station, it is synchronously switched to the idle state; the first arc rack 6 and the second arc rack 7 are respectively fixed on the left and right sides of the top of the welding box 1 through the bracket, and are used to cooperate with the refrigeration copper tube clamping mechanism 4 to complete the cleaning of the refrigeration copper tube weld position before welding and the cooling operation after welding. The welding device also includes a fixed arrangement on the welding The protrusion 28 and the arc-shaped driving plate 9 at the top of the junction box 1 and close to the side of the refrigeration copper tube welding mechanism 5, the arc-shaped driving plate 9 and the protrusion 28 are respectively used to cooperate with the refrigeration copper tube clamping mechanism 4 to complete the clamping and locking of the refrigeration copper tube and the welding operation after clamping and locking; the two sides of the protrusion 28 are inclined surfaces, the top position is a plane, and the position where the plane and the inclined surface meet is rounded; the two ends of the arc-shaped driving plate 9 are sloped surfaces, and the top is a horizontal plane; the refrigeration copper tube includes a copper tube c1 and a joint c2, and one end of the joint c2 can be inserted into the inside of the copper tube c1.

[0063] like Figure 10-15A second embodiment is shown, which differs from the first embodiment in that the refrigeration copper tube clamping mechanism 4 includes a transverse bracket 41 detachably arranged on the top of the turntable 3 by bolts and a longitudinal bracket 42 fixedly arranged at both ends of the transverse bracket 41, and the tops of the two longitudinal brackets 42 are also fixedly provided with transverse support frames 43 for limiting the position of the refrigeration copper tube, and the tops of each transverse support frame 43 are fixedly provided with a longitudinal support frame 44 for supporting the refrigeration copper tube, and the ends of the two longitudinal brackets 42 away from the transverse bracket 41 are detachably provided with a welding positioning assembly 45 for locking the refrigeration copper tube after limiting. A "V"-shaped notch is provided at one end of the transverse support frame 43 away from the transverse support 41, and the refrigeration copper tube can limit its own position after being placed in the "V"-shaped notch; a limiting groove is provided at the top of the longitudinal support frame 44; a switching component for controlling the refrigeration copper tube welding mechanism 5 to enter a welding operation state or leave a welding state is fixedly arranged on the side wall of the transverse support 41 and between the two welding positioning components 45, and the switching component includes a support plate 46 fixedly arranged on the side wall of the transverse support 41, and two lifting rods 47 are slidably penetrated inside the support plate 46, and the outer walls of the two lifting rods 47 are fixedly sleeved with a limit ring 48 for limiting the lower limit of the lifting rods 47, and a lifting plate 49 is fixedly arranged at the bottom of the two lifting rods 47, and a protrusion 410 is fixedly arranged at the middle position of the bottom end of the lifting plate 49. The lifting plate 49 has a low middle position and high two side positions, which can ensure that the protrusion 410 can contact the protrusion 8, while the two end positions of the lifting plate 49 away from the middle position will not contact the protrusion 8; the welding positioning assembly 45 includes a welding tube 451 fixedly arranged at the end of the longitudinal bracket 42 and an operating notch 452 opened on the front of the welding tube 451, and a limiting hole 453 for limiting the end position of the refrigeration copper tube is opened at the center position of the bottom of the inner cavity of the welding tube 451, and a plurality of ventilation holes 454 are opened around the limiting hole 453 at the bottom of the inner cavity of the welding tube 451, and a blowing assembly 455 for blowing air into the interior through the ventilation hole 454 is also provided at the bottom of the welding tube 451, and a clamping assembly 456 for locking the position of the refrigeration copper tube is provided at the top of the welding tube 451.The inner diameter of the limiting hole 453 is adapted to the outer diameter of the copper tube c1; the welding tube 451 is made of non-ferromagnetic material; the blowing assembly 455 includes an air guide tube a1 fixedly arranged at the bottom of the welding tube 451 and an air inlet opened at the bottom of the air guide tube a1, a transmission a2 is fixedly arranged at the bottom of the air guide tube a1, a gear a3 meshing and connected with the first arc rack 6 or the second arc rack 7 is fixedly arranged on the input shaft of the transmission a2, and the output shaft of the transmission a2 rotates through the air guide tube a1 and is fixedly provided with a fan blade a4; the clamping assembly 456 includes a support arm b1 movably arranged above the longitudinal bracket 42 and a driving rod b2 fixedly arranged at the bottom of the support arm b1, the bottom end of the driving rod b2 slides through the longitudinal bracket 42 and extends to the bottom, and a spring retaining ring b3 is also fixedly sleeved on the outer wall of the driving rod b2, and a spring b3 is slidably sleeved on the outer wall of the driving rod b2 and located between the spring retaining ring b3 and the longitudinal bracket 42 4; A driving ring b5 is fixedly provided at one end of the support arm b1, and a plurality of wedge blocks b6 are evenly fixedly provided on the inner wall of the driving ring b5; a bearing ring b7 is fixedly provided at the top end of the transverse bracket 41 and located inside the driving ring b5; a plurality of mounting grooves b8 are provided on the outer wall of the bearing ring b7 and at positions corresponding to the positions of the wedge blocks b6; a baffle b10 is fixedly provided on the inner wall of the mounting groove b8, and a clamping unit b9 for clamping the refrigeration copper tube is also provided inside the baffle b10; the clamping unit b9 comprises a clamping block b91 slidingly passing through the mounting groove b8 and a wedge groove b92 provided on the side wall of the clamping block b91; guide rods b93 are fixedly provided on both sides of the outer wall of the clamping block b91 through brackets; the guide rods b93 slide through the baffle b10 and extend to the inside of the inner bearing ring b7; and a spring b94 is slidingly sleeved on the outer wall of the guide rod b93 and located between the baffle b10 and the bracket. The end of the clamping block b91 away from the wedge groove b92 is an arc-shaped surface structure, and a rubber protective pad is fixedly arranged on the arc-shaped surface, which is used to increase the friction and buffering effect when clamping the refrigeration copper tube; multiple wedge blocks b6 and wedge grooves b92 are arranged in a one-to-one correspondence, and each wedge block b6 is slidably arranged in the wedge groove b92 at the corresponding position. When the wedge block b6 moves up, the wedge groove b92 at the corresponding position is subjected to the thrust and moves toward the inner direction of the carrying ring b7.

[0064] like Figure 16-18A third embodiment is shown, which differs from the second embodiment in that: the refrigeration copper pipe welding mechanism 5 includes a mounting seat 51 fixedly arranged at the bottom of the inner cavity of the welding box 1 and a No. 1 welding unit and a No. 2 welding unit respectively arranged on both sides of the top of the mounting seat 51; the No. 1 welding unit and the No. 2 welding unit have the same structure, the No. 1 welding unit includes an L-shaped bracket 52 fixedly arranged on the top of the mounting seat 51 and an adjustment slot 53 opened on the front of the L-shaped bracket 52, and a lifting plate 54 is slidably arranged inside the adjustment slot 53, and a guide rod 55 is fixedly arranged on both sides of the top of the lifting plate 54, and two The guide rod 55 slides through the L-shaped bracket 52 and extends to the outside, and a spring three 56 is provided on the outer wall of the guide rod 55 and between the lifting plate 54 and the adjusting slot 53. A high-frequency induction heating ring 57 and a pressure plate 58 are fixedly provided on the side walls of the lifting plate 54, respectively. The pressure plate 58 is located below the high-frequency induction heating ring 57. A trigger block 59 is fixedly provided on the top of the lifting plate 54 and between the two guide rods 55. A trigger switch 510 for controlling the on and off of the current in the high-frequency induction heating ring 57 is fixedly provided at the top of the adjusting slot 53 and directly above the trigger block 59.

[0065] The embodiment of the present invention further provides a welding method based on constant temperature and humidity precision air conditioning assembly, which is used for a welding device based on constant temperature and humidity precision air conditioning assembly. The method comprises the following steps:

[0066] Step 1, place the refrigeration copper tube to be welded at a preset position in the refrigeration copper tube clamping mechanism 4 through the No. 1 operation window on the front of the welding box 1 for positioning; the specific process is: first, manually assemble the copper tube c1 and the joint c2 in the refrigeration copper tube together, then insert the bottom end of the copper tube c1 from the top middle position of the clamping assembly 456, and place it in the limiting hole 453, and place the joint c2 along the "V"-shaped groove at the end of the horizontal support frame 43 and the limiting groove at the top of the longitudinal support frame 44;

[0067] The servo motor is started to drive the turntable 3 to rotate intermittently clockwise, that is, it rotates sixty degrees and rests for three minutes. When the refrigeration copper tube clamping mechanism 4 loaded with the refrigeration copper tube enters the position of the refrigeration copper tube welding mechanism 5, the gear a3 first meshes with the first arc rack 6 and rotates under the drive of the first arc rack 6. The low speed is input through the input shaft of the transmission a2, and is output through the output shaft after being increased by the transmission a2, so that the fan blade a4 rotates at a high speed, and the external air is sucked into the inside of the air guide tube a1 through the air inlet at the bottom thereof, and is input into the welding tube 451 through the vent 454. The high-speed airflow sweeps the surface of the refrigeration copper tube, thereby removing the dust attached to the surface of the refrigeration copper tube;

[0068] Then, the higher positions on both sides of the lifting plate 49 first reach below the pressure plates 58 in the No. 1 welding unit and the No. 2 welding unit, respectively, and the bottom ends of the welding positioning components 45 on both sides of the refrigeration copper tube clamping mechanism 4 are respectively opposite to the circular areas of the high-frequency induction heating ring 57 at the corresponding positions, and the two sides of the lifting plate 49 are respectively in contact with the bottoms of the pressure plates 58 at the corresponding positions. At the same time, the bottom end of the driving rod b2 climbs along the slope surface on one side of the arc-shaped driving plate 9 to the horizontal area at the top, so that the upward movement of the driving rod b2 pushes the support arm b1 to slide upward along the outer walls of the multiple clamping units b9, and the wedge blocks b6 at multiple positions slide along the wedge grooves b92 on the outer walls of the clamping blocks b91 at the corresponding positions, so that the clamping blocks b91 at multiple positions move toward the center position of the carrying ring b7 at the same time, until the driving rod b2 slides to the top horizontal area of ​​the arc-shaped driving plate 9, and the clamping unit b9 also stops moving. At this time, the refrigeration copper tube is clamped between the multiple clamping units b9;

[0069] Then the protrusion 1 410 meets the protrusion 2 8 set on the top of the welding box 1, and the protrusion 1 410 moves upward due to the upward thrust of the protrusion 2 8, and the lifting plate 49 simultaneously lifts the pressure plate 58 in the No. 1 welding unit and the No. 2 welding unit upward when moving upward, until the protrusion 1 410 climbs to the highest horizontal position at the top along the inclined surface on one side of the protrusion 2 8, and because the inner diameter of the high-frequency induction heating ring 57 is much larger than the outer diameter of the welding tube 451, after the high-frequency induction heating ring 57 in the No. 1 welding unit and the No. 2 welding unit moves to the limit position, the welding tube 451 at the corresponding position is surrounded by the inside of the high-frequency induction heating ring 57, and finally the high-frequency induction heating ring 57 rises to the same height as the joint position of the copper tube c1 and the joint c2;

[0070] When the high-frequency induction heating ring 57 rises to the preset position, the trigger block 59 contacts the trigger switch 510. After the trigger switch 510 is triggered, the circuit where the high-frequency induction heating ring 57 is located is connected. When the high-frequency current passes through the induction coil in the high-frequency induction heating ring 57, an alternating magnetic field is generated. Due to the electromagnetic induction effect, eddy currents are generated inside the refrigeration copper tube. When the eddy currents flow inside the refrigeration copper tube, Joule heat is generated due to the resistance of the refrigeration copper tube itself, causing the refrigeration copper tube to heat up rapidly. The metals at the joints of the copper tube c1 and the joint c2 melt due to the high temperature and then fuse together.

[0071] When the single welding time is over, the servo motor drives the turntable 3 to rotate sixty degrees clockwise again. When the turntable 3 just starts to rotate, because the inner diameter of the high-frequency induction heating ring 57 is much larger than the outer diameter of the welding tube 451, the protrusion 1 410 in the refrigeration copper tube clamping mechanism 4 loaded with the completed welding refrigeration copper tube moves a small distance, and the pressure plate 58 in the No. 1 welding unit and the No. 2 welding unit loses the lifting effect of the lifting plate 49, and quickly moves downward and resets under the elastic force of the spring three 56, and the high-frequency induction heating ring 57 releases the surrounding state of the welding tube 451 in the relative position, and then the welding positioning assembly 45 can rotate freely without interference from the high-frequency induction heating ring 57. At the same time, the driving rod b2 and the arc driving plate 9 in the welding positioning assembly 45 are separated, and the driving ring b5 moves downward under the elastic force of the spring one b4. After the clamping units b9 at multiple positions lose the push of the wedge blocks b6 at the corresponding positions, the spring two b94 pushes the clamping block b91 to quickly reset, and the clamping force on the refrigeration copper tube is released;

[0072] Next, when the refrigeration copper tube clamping mechanism 4 loaded with the completed welded refrigeration copper tube continues to rotate, the gear a3 inside it and the second arc-shaped rack 7 are meshed, and the fan blade a4 blows air into the welding tube 451 again, so that the welding position of the refrigeration copper tube is quickly cooled down. When the refrigeration copper tube rotates to the first operating window, the refrigeration copper tube that has been welded and cooled can be removed from the refrigeration copper tube clamping mechanism 4, and then the refrigeration copper tubes to be welded from the same batch can be placed in the preset position.

[0073] Step 2, the turntable 3 then drives the refrigeration copper tube clamping mechanism 4 loaded with the refrigeration copper tube to rotate to the welding position of the refrigeration copper tube welding mechanism 5 to complete the automatic locking of the refrigeration copper tube, and then the refrigeration copper tube welding mechanism 5 performs a welding operation on the welding seam position of the refrigeration copper tube;

[0074] Step 3: When the refrigeration copper tube that has been welded is rotated to the No. 1 operation window again, it is removed, and then the refrigeration copper tube to be welded is placed again at the preset position in the refrigeration copper tube clamping mechanism 4 to perform the next welding operation.

[0075] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0076] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding device based on constant temperature and humidity precision air conditioning assembly, comprising a welding box and a No. 1 operating window and a No. 2 operating window respectively opened on the front and back of the welding box, wherein the No. 1 operating window and the No. 2 operating window are both rotatably provided with protective doors, characterized in that: Also includes: The turntable is rotatably arranged inside the welding box and is used to drive the batches of refrigeration copper tubes to be welded to intermittently reach the welding position to complete the welding operation; Multiple refrigeration copper tube clamping mechanisms are evenly and fixedly arranged on the top of the turntable, which are used to automatically complete the clamping and locking of the refrigeration copper tube position before welding, and automatically unlock the position after welding is completed, so as to ensure the stability of the refrigeration copper tube welding process and facilitate quick disassembly after welding; The refrigeration copper tube welding mechanism is arranged on one side of the top of the welding box, and is used to automatically reach the welding position when the refrigeration copper tube moves to the welding station, and switch to the welding execution state, and synchronously switch to the idle state after the refrigeration copper tube clamping mechanism leaves the welding station; The first arc rack and the second arc rack are respectively fixed on the left and right sides of the top of the welding box through brackets, and are used to cooperate with the refrigeration copper pipe clamping mechanism to complete the cleaning of the refrigeration copper pipe welding position before welding and the cooling operation after welding; The refrigeration copper tube clamping mechanism includes a transverse bracket detachably arranged on the top of the turntable by bolts and a longitudinal bracket fixedly arranged at both ends of the transverse bracket, and the tops of the two longitudinal brackets are also fixedly provided with transverse support frames for limiting the position of the refrigeration copper tube, and the tops of each transverse support frame are fixedly provided with a longitudinal support frame for supporting the refrigeration copper tube, and the ends of the two longitudinal brackets away from the transverse brackets are detachably provided with welding positioning components for locking the refrigeration copper tube after limiting. The welding positioning assembly includes a welding cylinder fixedly arranged at the end of the longitudinal bracket and an operating notch opened on the front of the welding cylinder, a limiting hole for limiting the end position of the refrigeration copper tube is opened at the center of the bottom of the inner cavity of the welding cylinder, and a plurality of vents are opened around the limiting hole at the bottom of the inner cavity of the welding cylinder, a blowing assembly for blowing air into the interior of the welding cylinder through the vents is also arranged at the bottom of the welding cylinder, and a clamping assembly for locking the position of the refrigeration copper tube is arranged at the top of the welding cylinder; The welding device also includes a protrusion 2 and an arc-shaped drive plate fixedly arranged on the top of the welding box and close to one side of the refrigeration copper tube welding mechanism. The arc-shaped drive plate and the protrusion 2 are respectively used to cooperate with the refrigeration copper tube clamping mechanism to complete the clamping and locking of the refrigeration copper tube and the welding operation after clamping and locking.

2. A welding device based on constant temperature and humidity precision air conditioning assembly according to claim 1, characterized in that: A switching component for controlling the refrigeration copper tube welding mechanism to enter a welding operation state or leave a welding state is fixedly arranged on the side wall of the transverse bracket and between the two welding positioning assemblies. The switching component includes a support plate fixedly arranged on the side wall of the transverse bracket, and two lifting rods are slidably penetrated inside the support plate. Limiting rings for limiting the lower limit of the downward movement of the lifting rods are fixedly sleeved on the outer walls of the two lifting rods, and a lifting plate is fixedly arranged at the bottom of the two lifting rods, and a protrusion 1 is fixedly arranged at the middle position of the bottom end of the lifting plate.

3. A welding device based on constant temperature and humidity precision air conditioning assembly according to claim 1, characterized in that: The blowing assembly includes an air guide tube fixedly arranged at the bottom of the welding tube and an air inlet opened at the bottom of the air guide tube. A transmission is fixedly arranged at the bottom of the air guide tube, and a gear meshing with the first arc rack or the second arc rack is fixedly arranged on the input shaft of the transmission, and the output shaft of the transmission rotates through the air guide tube and is fixedly provided with fan blades.

4. A welding device based on constant temperature and humidity precision air conditioning assembly according to claim 1, characterized in that: The clamping assembly includes a support arm movably arranged above the longitudinal bracket and a driving rod fixedly arranged at the bottom of the support arm, the bottom end of the driving rod slides through the longitudinal bracket and extends to the bottom, and a spring retaining ring is fixedly sleeved on the outer wall of the driving rod, and a spring 1 is slidably sleeved on the outer wall of the driving rod and located between the spring retaining ring and the longitudinal bracket; A driving ring is fixedly provided at one end of the support arm, and a plurality of wedge blocks are evenly fixedly provided on the inner wall of the driving ring. A carrying ring is fixedly provided at the top end of the transverse bracket and located inside the driving ring. A plurality of mounting grooves are provided on the outer wall of the carrying ring and at positions corresponding to the positions of the wedge blocks. A baffle is fixedly provided on the inner wall of the mounting groove, and a clamping unit for clamping the refrigeration copper tube is also provided inside the baffle.

5. A welding device based on constant temperature and humidity precision air conditioning assembly according to claim 4, characterized in that: The clamping unit includes a clamping block that slides through the installation groove and a wedge-shaped groove opened on the side wall of the clamping block. Guide rods are fixedly arranged on both sides of the outer wall of the clamping block through brackets. The guide rods slide through the baffle and extend to the interior of the inner bearing ring, and a spring 2 is provided on the outer wall of the guide rod and is located between the baffle and the bracket.

6. A welding device based on constant temperature and humidity precision air conditioning assembly according to claim 1, characterized in that: The refrigeration copper pipe welding mechanism comprises a mounting seat fixedly arranged at the bottom of the inner cavity of the welding box and a No. 1 welding unit and a No. 2 welding unit respectively arranged on both sides of the top of the mounting seat; The structure of the No. 1 welding unit is the same as that of the No. 2 welding unit. The No. 1 welding unit includes an L-shaped bracket fixedly arranged on the top of the mounting seat and an adjusting slot opened on the front of the L-shaped bracket. A lifting plate is slidably arranged inside the adjusting slot. A guide rod is fixedly arranged on both sides of the top of the lifting plate. The two guide rods slide through the L-shaped bracket and extend to the outside. A spring three is slidably sleeved on the outer wall of the guide rod and between the lifting plate and the adjusting slot. A high-frequency induction heating ring and a pressure plate are fixedly arranged on the side walls of the lifting plate, respectively. The pressure plate is located below the high-frequency induction heating ring. A trigger block is fixedly arranged on the top of the lifting plate and between the two guide rods, and a trigger switch for controlling the on and off of the current in the high-frequency induction heating ring is fixedly arranged at the top of the adjusting slot and directly above the trigger block.

7. A welding method based on constant temperature and humidity precision air conditioning assembly, characterized in that: For a welding device based on constant temperature and humidity precision air conditioning assembly as described in any one of claims 1 to 6, the method comprises the following steps: Step 1: Place the refrigeration copper tube to be welded at a preset position in the refrigeration copper tube clamping mechanism through the No. 1 operation window on the front of the welding box for positioning; Step 2, the turntable then drives the refrigeration copper tube clamping mechanism loaded with the refrigeration copper tube to rotate to the welding position of the refrigeration copper tube welding mechanism to complete the automatic locking of the refrigeration copper tube, and then the refrigeration copper tube welding mechanism performs a welding operation on the welding seam position of the refrigeration copper tube; Step 3: When the welded refrigeration copper tube is rotated to the No. 1 operation window again, remove it, and then place the refrigeration copper tube to be welded again at the preset position in the refrigeration copper tube clamping mechanism to perform the next welding operation.

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