Positionable electronic cigarette production welding device

Abstract

The invention provides a positionable electronic cigarette production welding device, and relates to the technical field of laser welding. The electronic cigarette production welding device capable of achieving positioning comprises a control cabinet assembly and a control PC arranged on the control cabinet assembly, the control PC serves as an upper control unit of the control cabinet assembly, a visual laser welding machine is installed on the upper side wall of the control cabinet assembly, a three-axis numerical control machining platform is installed on the outer side wall of the control cabinet assembly, and the three-axis numerical control machining platform is connected with a laser welding machine. A heating wire welding box assembly is installed on the platform surface of the three-axis numerical control machining platform and comprises a welding outer box. The high-pressure air curtain is used for isolating inert gas in the welding outer box, the inert gas only keeps low flowability, the heat dissipation speed of a welding area is reduced, a stable temperature field of the welding area is helped to be maintained, effective input and utilization of welding energy are guaranteed, flue gas is prevented from being directly condensed on the periphery of the welding area due to low temperature, and the welding efficiency is improved. And therefore, the overall quality of laser welding is improved.

Description

Technical Field

[0001] The invention relates to the technical field of laser welding, and in particular to a positionable electronic cigarette production welding device. Background Art

[0002] In the manufacturing process of electronic cigarettes, laser welding is used to connect the heating wire and the metal electrode. Laser welding is a non-contact welding method that can accurately focus heat on the welding site to avoid excessive heat impact on surrounding materials, thereby ensuring the accuracy and integrity of electronic cigarette components. Its welding speed is fast, which can effectively improve production efficiency and meet the needs of large-scale production. Moreover, laser welding can achieve high-quality welding joints with high welding strength, ensuring the stability and reliability of the connection between the heating wire and the metal electrode, which has a vital impact on the normal operation and service life of electronic cigarettes.

[0003] In the laser welding process, protective gas plays an indispensable role. Since the metal material is exposed to high temperature during the welding process, the metal is prone to chemical reactions with oxygen and nitrogen in the air, such as oxidation and nitridation. These reactions will lead to a decrease in the performance of the welded joint, such as reduced strength and poor corrosion resistance. The protective gas can form a protective barrier in the welding area to isolate the air and prevent the metal from contacting with harmful gases, thereby ensuring the welding quality, improving the stability and reliability of the welded joint, and ensuring that the heating wire of the electronic cigarette can work normally and have good durability after welding with the metal electrode.

[0004] However, the existing shielding gas release strategy is generally to release it coaxially along the laser welding path. When the shielding gas is released coaxially along the welding path, the smoke generated by welding will be flushed onto the surface of the workpiece by the shielding gas. The smoke attached to the surface of the workpiece contains a large amount of impurities such as metal oxides and metal particles, which will affect the appearance quality of the workpiece and make the surface of the workpiece rough and uneven in color. On the other hand, these impurities may penetrate into the weld joint, weaken the strength of the weld joint, reduce its conductivity, and thus affect the heating effect and overall performance of the electronic cigarette. At the same time, due to the decrease in surface temperature around the welding area under the action of the protective gas, the smoke will directly condense on the surface of the workpiece, causing the area around the welding area to be contaminated and affecting the welding effect. In addition, the coaxial release of the shielding gas may cause uneven distribution of the shielding gas, and poor protection effect in certain parts of the welding area, further increasing the probability of welding defects and affecting the product qualification rate.

[0005] Based on the above viewpoints, those skilled in the art have proposed a positionable welding device for producing electronic cigarettes. Summary of the invention

[0006] In view of the shortcomings of the prior art, the present invention provides a locatable electronic cigarette production welding device, which uses a high-pressure air curtain to isolate the inert gas inside the welding outer box. The inert gas only maintains a low fluidity, and the heat loss rate in the welding area is slowed down, which helps to maintain a relatively stable temperature field in the welding area, ensures the effective input and utilization of welding energy, and prevents the low temperature from causing the smoke to condense directly around the welding area, thereby improving the overall quality of laser welding.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a locatable electronic cigarette production welding device, comprising a control cabinet assembly, a control PC arranged on the control cabinet assembly, the control PC serving as the upper control unit of the control cabinet assembly, a visual laser welding machine being installed on the upper side wall of the control cabinet assembly, a three-axis CNC machining platform being installed on the outer side wall of the control cabinet assembly, a heating wire welding box assembly being installed on the platform surface of the three-axis CNC machining platform, the heating wire welding box assembly comprising a welding outer box, a heating wire fixing mold being detachably connected to the lower inner wall of the welding outer box, a wind curtain blowing cylinder being rotatably connected to the rear side wall of the welding outer box, a wind curtain cylinder driving mechanism for driving the wind curtain blowing cylinder to rotate being also installed on the rear side wall of the welding outer box, a blowing mechanism being installed at the middle position of the rear side wall of the welding outer box, a wind bearing mechanism being installed at the upper half of the front electric flap of the welding outer box, and an air outlet mechanism being installed at the middle position of the front side wall of the front electric flap of the welding outer box;

[0008] The air outlet mechanism comprises an air outlet frame, the front side wall of the air outlet frame is fixedly connected to a shunt pipe, the middle of the left side wall and the front side of the shunt pipe are respectively fixedly connected to an exhaust hose and a first air exhaust pipe, and the front side of the lower side wall of the shunt pipe is fixedly connected to a second air exhaust pipe;

[0009] A circulation filter mechanism is installed on the left side wall of the welding outer box, and a protective gas circulation drive mechanism is installed on the left side wall of the welding outer box and located in front of the circulation filter mechanism.

[0010] Preferably, the circulation filtering mechanism includes a gas pre-storage box, a replaceable filter element is detachably connected to the interior of the gas pre-storage box near the front end, a filter element cover is installed on the top of the replaceable filter element, a second air inlet valve and a first air inlet valve are respectively installed in the middle and front sides of the top of the gas pre-storage box, the second air inlet valve and the first air inlet valve are used to pass different types of protective gases into the interior of the gas pre-storage box, a diverter box is fixedly connected to the lower side wall of the gas pre-storage box, a plurality of heat dissipation fins distributed in a linear array are penetrated and connected on one side wall where the gas pre-storage box and the diverter box are connected, an exhaust valve is installed on the rear side wall of the gas pre-storage box near the top, the other end of the exhaust valve is connected to the blowing mechanism through a pipe, and the other end of the second air exhaust pipe penetrates the front side wall of the diverter box.

[0011] Preferably, the wind-bearing mechanism comprises a wind-bearing frame, the front side wall of the wind-bearing frame is fixedly connected with a wind-bearing tube, the rear side wall of the wind-bearing frame is provided with a groove body with the same horizontal height as the air curtain blowing tube outlet, and the bottom end of the wind-bearing tube is connected to the diversion pipe.

[0012] Preferably, the air outlet mechanism also includes a spring frame fixed at the rear side of the shunt pipe, a trigger switch is provided at the outer side of the front side wall of the spring frame, an electromagnet is provided at the inner side of the front side wall of the spring frame, and a shunt assembly is connected to the center of the front side wall of the spring frame.

[0013] Preferably, the shunt assembly includes a shunt iron core, a return spring is fixedly connected to the rear side wall of the shunt iron core, a trigger protrusion used in conjunction with a trigger switch is arranged on the outer side of the rear side wall of the shunt iron core, a suction groove matching the electromagnet is arranged on the inner side of the rear side wall of the shunt iron core, a straight exhaust groove for connecting the air bearing cylinder and the second air exhaust pipe is arranged in the middle position of the shunt iron core, an exhaust bend groove for connecting the air bearing cylinder and the first air exhaust pipe is arranged on the rear side of the shunt iron core, an air intake bend groove is arranged on the rear side of the shunt iron core, one end of the air intake bend groove is arranged on the rear side wall of the shunt iron core, and the other end is arranged on the left side wall of the shunt iron core and is arranged at the front end of the exhaust hose.

[0014] Preferably, the protective gas circulation drive mechanism includes an air outlet pipe installed at the center position of the front side wall of the gas pre-storage box and a fan mounting bracket fixed to the left side wall of the welding outer box, the fan mounting bracket is rotatably connected with a driving fan, the bottom of the shaft rod of the fan mounting bracket is fixedly connected with a rotating wheel disk, the outer wall of the fan mounting bracket is fixedly connected with a fan housing for covering the outside of the driving fan, the front end of the fan housing is connected to the first air exhaust pipe, the rear end of the fan housing is connected to the diversion box through a pipeline, the lower side wall of the rotating wheel disk is pin-connected with a hinge plate, the other end of the hinge plate is pin-connected with a driving rod, the driving rod is limitedly slidably connected to the center position of the air outlet pipe, the other end of the driving rod is fixedly connected with a valved piston plate, a plurality of valve plates that can only be opened one-way backward are provided on the valved piston plate, and the outer wall of the valved piston plate is tightly fitted with the inner wall of the air outlet pipe.

[0015] Preferably, the blowing mechanism comprises a blowing frame, a rear side wall of the blowing frame is fixedly connected with a blowing pipe, and a top end of the blowing pipe is connected with a blocking airbag.

[0016] Preferably, a three-way valve is fixedly connected to the rear side wall of the diverter box, and one of the ports of the three-way valve is connected to the blocking airbag through a pipeline.

[0017] The present invention has the following technical points and beneficial effects:

[0018] 1. Use high-pressure air curtain to isolate the inert gas inside the welding box. The inert gas only maintains a low fluidity. The smoke formed by laser welding will rise slowly and will not adhere to the surface of the workpiece due to the flow of the protective gas end. At the same time, due to the low-speed flow characteristics of the inert gas, the heat loss rate in the welding area is slowed down, which helps to maintain a relatively stable temperature field in the welding area, ensure the effective input and utilization of welding energy, and prevent the smoke from condensing directly around the welding area due to low temperature, thereby improving the overall quality of laser welding.

[0019] 2. The protective gas circulation drive mechanism and the circulation filter mechanism are used to realize the pre-storage and circulation of the protective gas. There is no need to continuously inject the protective gas, which optimizes the emission strategy of the protective gas, greatly reduces the consumption of the protective gas, and makes the manufacturing cost of the electronic cigarette lower.

[0020] 3. The mixed shielding gas of helium and argon is used to isolate the welding area and optimize the heat dissipation efficiency of the welding process. At the same time, due to the high cost of helium, it can pass through the workpiece first when discharged, which greatly improves its heat dissipation effect on welding and also greatly saves the amount of helium. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the present invention;

[0022] Figure 2 It is a top schematic diagram of the present invention;

[0023] Figure 3 It is a schematic diagram of the heating wire welding box assembly of the present invention;

[0024] Figure 4 It is a schematic diagram of the heating wire welding box assembly of the present invention, with the gas pre-storage box cover hidden behind it;

[0025] Figure 5 It is an isometric view of the heating wire welding box assembly of the present invention;

[0026] Figure 6 A top view of the heating wire welding box assembly of the present invention;

[0027] Figure 7 for Figure 6 Isometric section view along AA;

[0028] Figure 8 for Figure 7 The enlarged schematic diagram of point B in the middle;

[0029] Fig. 9 This is a schematic diagram of the protective gas circulation drive mechanism in the present invention after the fan housing is hidden;

[0030] Fig.10 It is a schematic diagram of the protective gas circulation drive mechanism in the present invention after the fan housing and the air outlet tube are hidden;

[0031] Fig.11 It is an internal schematic diagram of the blowing mechanism in the present invention;

[0032] Fig.12 is a schematic diagram of the flow diversion component in the present invention;

[0033] Fig.13 It is a schematic diagram of the rear side of the diversion component in the present invention.

[0034] Among them, 1. Control cabinet assembly; 2. Control PC; 3. Visual laser welding machine; 4. Three-axis CNC machining platform; 5. Heating wire welding box assembly;

[0035] 51. Welding outer box; 52. Heating wire fixing mold; 53. Air curtain blowing cylinder; 54. Air curtain cylinder driving mechanism; 55. Wind bearing mechanism; 56. Protective gas circulation driving mechanism; 57. Circulation filtering mechanism; 58. Air blowing mechanism; 59. Air outlet mechanism;

[0036] 551, wind-bearing frame; 552, wind-bearing tube;

[0037] 561, fan housing; 562, air outlet; 563, fan mounting bracket; 564, driving fan; 565, rotating wheel; 566, driving rod; 567, piston plate with valve; 568, hinged plate;

[0038] 571, gas pre-storage box; 572, replaceable filter element; 573, filter element cover; 574, three-way valve; 575, heat dissipation fins; 576, diverter box; 577, first air inlet valve; 578, second air inlet valve; 579, exhaust valve;

[0039] 581, blowing rack; 582, blowing tube; 583, blocking air bag;

[0040] 591, air outlet rack; 592, shunt pipe; 593, exhaust hose; 594, first air exhaust pipe; 595, second air exhaust pipe; 596, shunt assembly; 597, spring rack; 598, trigger switch; 599, electromagnet;

[0041] 5961, shunt core; 5962, straight exhaust groove; 5963, exhaust bend groove; 5964, intake bend groove; 5965, return spring; 5966, trigger protrusion; 5967, suction groove. DETAILED DESCRIPTION

[0042] 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.

[0043] Embodiment 1, as Figure 1 , Figure 2 and Figure 3 As shown, an embodiment of the present invention provides a positionable electronic cigarette production welding device, a positionable electronic cigarette production welding device, including a control cabinet assembly 1, a control PC 2 arranged on the control cabinet assembly 1, the control PC 2 serves as the upper control unit of the control cabinet assembly 1, a visual laser welding machine 3 is installed on the upper side wall of the control cabinet assembly 1, a three-axis CNC machining platform 4 is installed on the outer side wall of the control cabinet assembly 1, a heating wire welding box assembly 5 is installed on the platform surface of the three-axis CNC machining platform 4, the heating wire welding box assembly 5 includes a welding outer box 51, and the lower inner wall of the welding outer box 51 is detachably connected with a heating wire fixing mold 52. Before performing laser welding on the heating wire, the staff places the heating wire and the metal electrode on the heating wire fixing mold 52, and then installs the heating wire fixing mold 52 on the lower inner wall of the welding outer box 51.

[0044] like Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 and Figure 7 As shown, the rear side wall of the welding outer box 51 is rotatably connected with the wind curtain blowing tube 53, and the rear side wall of the welding outer box 51 is also installed with a wind curtain cylinder driving mechanism 54 for driving the wind curtain blowing tube 53 to rotate. The upper part of the front electric flap of the welding outer box 51 is installed with a wind bearing mechanism 55, and the wind bearing mechanism 55 includes a wind bearing frame 551, and the front side wall of the wind bearing frame 551 is fixedly connected with a wind bearing tube 552. The rear side wall of the wind bearing frame 551 is provided with a groove body with the same horizontal height as the air outlet of the wind curtain blowing tube 53, and the bottom end of the wind bearing tube 552 is connected to the shunt pipe 592. After the heating wire fixing mold 52 is installed, the welding outer box 51 The front electric flap is flipped forward to make it present a certain inclination angle, and the air curtain blowing tube 53 is connected to the air compressor, and the air curtain blowing tube 53 starts to blow out high-pressure air, and the air curtain blowing tube driving mechanism 54 drives the air curtain blowing tube 53 to rotate. The air curtain blowing tube driving mechanism 54 can be selected as a motor and a belt group, and the belt transmission is driven by the motor to drive the air curtain blowing tube 53 to rotate. When the air curtain blowing tube 53 rotates, the high-pressure air curtain blown from the air curtain blowing tube 53 sweeps over the heating wire fixing mold 52, so that the impurities attached to the heating wire fixing mold 52 are blown out from the electric flap to avoid dust adhesion and reduce the laser welding quality.

[0045] Embodiment 2, as Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig.10 and Fig.11 As shown, this embodiment provides another implementation method based on the first embodiment, a blowing mechanism 58 is installed in the middle position of the rear side wall of the welding outer box 51, and the blowing mechanism 58 includes a blowing frame 581, and the rear side wall of the blowing frame 581 is fixedly connected with a blowing pipe 582, and the top of the blowing pipe 582 is connected with a blocking airbag 583, and an exhaust mechanism 59 is installed in the middle position of the front side wall of the front electric flap of the welding outer box 51, and the exhaust mechanism 59 includes an exhaust frame 591, and the front side wall of the exhaust frame 591 is fixedly connected with a shunt pipe 592, and the middle of the left side wall and the front side of the shunt pipe 592 are fixedly connected with an exhaust hose 593 and a first air exhaust pipe 594 respectively, and the front side of the lower side wall of the shunt pipe 592 is fixedly connected with a second air exhaust pipe 595.

[0046] like Figure 8 As shown, the air outlet mechanism 59 also includes a spring frame 597 fixed at the rear side of the shunt pipe 592, a trigger switch 598 is provided at the outer side of the front side wall of the spring frame 597, and an electromagnet 599 is provided at the inner side of the front side wall of the spring frame 597.

[0047] Embodiment three, as Figure 4 and Figure 5 As shown, this embodiment provides another implementation method based on the first and second embodiments, a circulation filter mechanism 57 is installed on the left side wall of the welding outer box 51, and a protective gas circulation drive mechanism 56 is installed on the left side wall of the welding outer box 51 and in front of the circulation filter mechanism 57. The circulation filter mechanism 57 includes a gas pre-storage box 571, and a replaceable filter element 572 is detachably connected to the front end of the gas pre-storage box 571. A filter element cover 573 is installed on the top of the replaceable filter element 572. A second air inlet valve 578 is installed in the middle and front side of the top of the gas pre-storage box 571. Together with the first air inlet valve 577, the second air inlet valve 578 and the first air inlet valve 577 are used to pass different types of protective gases into the interior of the gas pre-storage box 571. The lower side wall of the gas pre-storage box 571 is fixedly connected with a diverter box 576. A plurality of heat dissipation fins 575 distributed in a linear array are penetrated and connected on one side wall where the gas pre-storage box 571 and the diverter box 576 are connected. An exhaust valve 579 is installed on the top of the rear side wall of the gas pre-storage box 571. The other end of the exhaust valve 579 is connected to the blowing mechanism 58 through a pipe. The other end of the second air exhaust pipe 595 penetrates the front side wall of the diverter box 576.

[0048] like Figure 6 , Figure 7 , Figure 8 , Fig.12 and Fig.13 As shown, a shunt assembly 596 is connected to the center of the front side wall of the spring frame 597, and the shunt assembly 596 includes a shunt core 5961. A reset spring 5965 is fixedly connected to the rear side wall of the shunt core 5961. A trigger protrusion 5966 used in conjunction with the trigger switch 598 is arranged at the outer side of the rear side wall of the shunt core 5961. A suction groove 5967 that matches the electromagnet 599 is arranged at the inner side of the rear side wall of the shunt core 5961. A straight exhaust groove 5962 for connecting the air-bearing cylinder 552 and the second air exhaust pipe 595 is provided, an exhaust bent groove 5963 for connecting the air-bearing cylinder 552 and the first air exhaust pipe 594 is provided at the rear side of the shunt core 5961, and an air intake bent groove 5964 is provided at the rear side of the shunt core 5961, one end of the air intake bent groove 5964 is provided on the rear side wall of the shunt core 5961 and the other end is provided on the left side wall of the shunt core 5961 and is arranged at the front end of the exhaust hose 593.

[0049] like Fig. 9 , Fig.10 and Fig.11 As shown, the protective gas circulation driving mechanism 56 includes an air outlet 562 installed at the center of the front side wall of the gas pre-storage box 571 and a fan mounting bracket 563 fixed to the left side wall of the welding outer box 51, a driving fan 564 is rotatably connected in the fan mounting bracket 563, a rotating wheel 565 is fixedly connected to the bottom of the shaft of the fan mounting bracket 563, a fan housing 561 for covering the outside of the driving fan 564 is fixedly connected to the outer wall of the fan mounting bracket 563, the front end of the fan housing 561 is connected to the first air exhaust pipe 594, and the rear end of the fan housing 561 is connected to the diversion box 576 through a pipeline. The lower side wall of the rotating wheel 565 is connected to a hinge plate 568 by a pin shaft, and the other end of the hinge plate 568 is connected to a driving rod 566 by a pin shaft. The driving rod 566 is limitedly slidably connected to the center position of the air outlet tube 562, and the other end of the driving rod 566 is fixedly connected to a valved piston plate 567. A plurality of valve plates that can only be opened one-way backward are arranged on the valved piston plate 567. The outer side wall of the valved piston plate 567 is tightly fitted with the inner side wall of the air outlet tube 562. The rear side wall of the diverter box 576 is fixedly connected to a three-way valve 574, and one of the ports of the three-way valve 574 is connected to the blocking airbag 583 through a pipeline.

[0050] Working principle: Before laser welding the heating wire, the staff places the heating wire and the metal electrode on the heating wire fixing mold 52, and then installs the heating wire fixing mold 52 on the lower inner wall of the welding outer box 51. After the heating wire fixing mold 52 is installed, the front electric flap of the welding outer box 51 flips forward to make it present a certain inclination angle. The air curtain blow tube 53 is connected to the air compressor, and the air curtain blow tube 53 starts to blow out high-pressure air, and the air curtain blow tube drive mechanism 54 drives the air curtain blow tube 53 to rotate. The air curtain blow tube drive mechanism 54 can be selected as a motor and a belt group, which drives the belt transmission through the motor, and then drives the air curtain blow tube 53 to rotate. When the air curtain blow tube 53 rotates, the high-pressure air curtain blown from the air curtain blow tube 53 sweeps over the heating wire fixing mold 52, so that impurities attached to the heating wire fixing mold 52 are blown out from the electric flap to avoid dust. Dust adhesion reduces the quality of laser welding. After the dust removal work is completed, the wind curtain blowing tube 53 stops rotating and the blowing of the wind curtain is also stopped. Then the exhaust valve 579 is opened, and the protective gas is filled into the gas pre-storage box 571 through the second air inlet valve 578. The protective gas is preferably a low-cost inert gas such as argon. After the inert gas filled into the gas pre-storage box 571 is blown into the gas pre-storage box 571, it will enter the blowing mechanism 58 through the exhaust valve 579 and then be filled in the welding outer box 51. After a period of inert gas filling, the wind curtain blowing tube 53 rotates to correspond to the rear slot of the wind-bearing mechanism 55, and then the wind curtain blowing tube 53 remains stationary. At this time, the high-pressure air curtain blown out by the wind curtain blowing tube 53 enters the wind-bearing mechanism 55, thereby forming a layer of stable high-pressure air curtain on the top of the inner cavity of the welding outer box 51, thereby isolating the inner cavity of the welding outer box 51 from the outside air.

[0051] It should be noted that the filling of the inert gas must ensure that the air originally inside the welding outer box 51 is dispersed, and the filling time can be obtained by conducting a limited number of experiments based on the volume of the welding outer box 51 and the filling speed of the gas.

[0052] When the inert gas filling is completed, the visual sensor on the visual laser welding machine 3 starts to scan the boundary of the heating wire fixing mold 52, and feeds back the scanned image signal to the control cabinet assembly 1. The control cabinet assembly 1 controls the top control platform of the three-axis CNC machining platform 4 to drive the initial welding position of the heating wire fixing mold 52 to the bottom of the visual laser welding machine 3. Then the visual laser welding machine 3 starts welding, and welds the heating wire and the metal electrode through the laser beam. The inert gas filled in the welding outer box 51 will not diffuse outward under the isolation of the high-pressure wind curtain, so the inert gas only maintains a low fluidity and is controlled by the laser. The smoke generated by welding will rise slowly and will not adhere to the surface of the workpiece due to the flow of the protective gas end. At the same time, due to the low-speed flow characteristics of the inert gas, the heat loss rate in the welding area is slowed down, which helps maintain a relatively stable temperature field in the welding area, ensures the effective input and utilization of welding energy, and prevents the smoke from condensing directly around the welding area due to low temperature, thereby improving the overall quality of laser welding. At the same time, during the welding process, the high-pressure air curtain blown out from the air curtain blow tube 53 enters the inside of the diversion box 576 through the air bearing tube 552, the linear exhaust groove 5962 and the second air exhaust pipe 595, thereby quickly dissipating the heat of a number of heat dissipation fins 575.

[0053] After welding in one target area is completed, the three-axis CNC machining platform 4 will drive the heating wire welding box assembly 5 to move to the right, and then drive another welding target area to move to the bottom of the visual laser welding machine 3. When the heating wire welding box assembly 5 is quickly driven by the three-axis CNC machining platform 4, the shunt component 596 will approach the direction of the spring frame 597 due to the moving inertia of the heating wire welding box assembly 5, and the trigger protrusion 5966 will squeeze the trigger switch 598. After the trigger switch 598 is squeezed, the trigger signal will be fed back to the control cabinet assembly 1. Then the control cabinet assembly 1 controls the electromagnet 599 to be energized quickly, so that the electromagnet 599 is adsorbed inside the suction groove 5967. At this time, the straight exhaust groove 5962 connects the air cylinder 552 with the first air exhaust pipe 594, and the air intake bend groove 5964 connects the exhaust hose 593 with the inner cavity of the welding outer box 51. The high-pressure air curtain blown out by the air curtain blow tube 53 passes through the air cylinder 552 and the first air exhaust pipe 594 and blows into the fan housing 561. The driving fan 564 starts to rotate rapidly, and then drives the rotating wheel 565 to rotate. Under the rotation of the rotating wheel 565, the driving rod 566 will be driven by the hinge plate 568 to continuously extend and retract inside the air outlet cylinder 562. Each time it extends forward, the valve piston plate 567 will fill the protective gas entering the air outlet cylinder 562 from the exhaust hose 593 into the gas pre-storage box 571. When the valve piston plate 567 retracts, the one-way valve plate on the valve piston plate 567 opens. Open, so that the protective gas comes to the rear of the valved piston plate 567, and the pumping and pressure of the valved piston plate 567 continues, and the protective gas originally filled in the welding outer box 51 will enter the gas pre-storage box 571, and at the same time, the protective gas will lead the smoke to be discharged into the gas pre-storage box 571, and the protective gas pre-stored in the gas pre-storage box 571 will flow into the welding outer box 51, thereby realizing the circulation of the protective gas between the welding outer box 51 and the circulation filter mechanism 57.

[0054] It should be noted that after the trigger switch 598 is triggered, the control cabinet assembly 1 will control the electromagnet 599 to be energized within several seconds. The energization time of the electromagnet 599 can be obtained from the wind pressure of the wind curtain and the volume of the welding outer box 51 after a limited number of experiments.

[0055] After the protective gas and the flue gas flow back into the gas pre-storage box 571, they will first pass through the replaceable filter element 572, which will filter the flue gas in the protective gas. The protective gas that then flows into the gas pre-storage box 571 will be cooled by a plurality of heat dissipating fins 575 so that after the protective gas flows back into the welding outer box 51, the surface of the workpiece can be cooled to a certain extent to prevent the workpiece temperature from being too high and causing thermal deformation problems.

[0056] In addition, the gas pre-storage box 571 is also provided with air pressure and temperature detection equipment, which can be selected as an air pressure sensor and a temperature sensor, both of which are electrically connected to the control cabinet assembly 1. When the air pressure loss inside the gas pre-storage box 571 is lower than the threshold value set by the air pressure detection equipment, the protective gas will be added to the gas pre-storage box 571 through the second air inlet valve 578, so that the air pressure in the gas pre-storage box 571 is maintained within a stable range, and the temperature monitoring equipment can monitor the temperature of the protective gas flowing into the gas pre-storage box 571 in real time. When the temperature of the protective gas is lower than the set threshold value, the second air inlet valve 578 is reduced. 8, and open the first air inlet valve 577. The protective gas introduced by the first air inlet valve 577 can be selected as an inert gas with a high heat dissipation level such as helium. The specific gravity of helium is lower than that of argon, so helium will accumulate in the upper area inside the gas pre-storage box 571, and it will preferentially flow out from the exhaust valve 579, and the three-way valve 574 will switch the pipeline to connect with the blocking airbag 583. At this time, the outflowing wind curtain airflow will cause the blocking airbag 583 to start to collide, and the helium will flow out from the outer surface of the heating wire fixing mold 52, thereby fully taking away the surface temperature of the workpiece, thereby avoiding deformation of the workpiece due to excessively high welding temperature.

[0057] It should be noted that the control PC2 serves as the upper control unit of the control cabinet assembly 1, while the temperature detection device, air pressure detection device, exhaust valve 579, second air intake valve 578, three-way valve 574, trigger switch 598 and electromagnet 599 are all lower execution units of the control cabinet assembly 1. The control cabinet assembly 1 is connected to each industrial control device according to a preset topology structure by means of wired / wireless communication connection means. The topology structure includes but is not limited to star type, bus type, ring type, etc., so that the computer can centrally control and coordinate the industrial control equipment.

[0058] 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 positionable electronic cigarette production welding device, comprising a control cabinet assembly (1), a control PC (2) arranged on the control cabinet assembly (1), the control PC (2) serving as a host control unit of the control cabinet assembly (1), a visual laser welding machine (3) being installed on the upper side wall of the control cabinet assembly (1), a three-axis CNC machining platform (4) being installed on the outer side wall of the control cabinet assembly (1), a heating wire welding box assembly (5) being installed on the platform surface of the three-axis CNC machining platform (4), characterized in that: The heating wire welding box assembly (5) comprises a welding outer box (51), the lower inner wall of the welding outer box (51) is detachably connected to a heating wire fixing mold (52), the rear side wall of the welding outer box (51) is rotatably connected to an air curtain blowing cylinder (53), the rear side wall of the welding outer box (51) is also equipped with an air curtain cylinder driving mechanism (54) for driving the air curtain blowing cylinder (53) to rotate, an air blowing mechanism (58) is installed in the middle position of the rear side wall of the welding outer box (51), an air bearing mechanism (55) is installed in the upper half of the front electric flap of the welding outer box (51), and an air outlet mechanism (59) is installed in the middle position of the front side wall of the front electric flap of the welding outer box (51); The air outlet mechanism (59) comprises an air outlet frame (591), a front side wall of the air outlet frame (591) is fixedly connected to a flow distribution pipe (592), an exhaust hose (593) and a first air exhaust pipe (594) are fixedly connected to the middle of the left side wall and the front side of the flow distribution pipe (592), respectively, and a second air exhaust pipe (595) is fixedly connected to the front side of the lower side wall of the flow distribution pipe (592); A circulation filter mechanism (57) is installed on the left side wall of the welding outer box (51), and a protective gas circulation drive mechanism (56) is installed on the left side wall of the welding outer box (51) and located in front of the circulation filter mechanism (57).

2. A locatable electronic cigarette production welding device according to claim 1, characterized in that: The circulation filtering mechanism (57) comprises a gas pre-storage box (571), a replaceable filter element (572) being detachably connected to the front end of the interior of the gas pre-storage box (571), a filter element cover (573) being installed on the top of the replaceable filter element (572), a second air intake valve (578) and a first air intake valve (577) being installed in the middle and front sides of the top of the gas pre-storage box (571), respectively, the second air intake valve (578) and the first air intake valve (577) being used to pass different types of protective gases into the gas pre-storage box (571). 71), the lower side wall of the gas pre-storage box (571) is fixedly connected to a diverter box (576), a side wall where the gas pre-storage box (571) and the diverter box (576) are connected is penetrated and connected with a plurality of heat dissipation fins (575) distributed in a linear array, an exhaust valve (579) is installed at a position close to the top of the rear side wall of the gas pre-storage box (571), the other end of the exhaust valve (579) is connected to the blowing mechanism (58) through a pipeline, and the other end of the second air exhaust pipe (595) penetrates the front side wall of the diverter box (576).

3. A locatable electronic cigarette production welding device according to claim 1, characterized in that: The wind-bearing mechanism (55) comprises a wind-bearing frame (551), a front side wall of the wind-bearing frame (551) being fixedly connected to a wind-bearing tube (552), a rear side wall of the wind-bearing frame (551) being provided with a groove body having the same horizontal height as the air outlet of the wind curtain blowing tube (53), and a bottom end of the wind-bearing tube (552) being connected to a diversion pipe (592).

4. A locatable electronic cigarette production welding device according to claim 1, characterized in that: The air outlet mechanism (59) further comprises a spring frame (597) fixed at a rearward position inside the shunt pipe (592); a trigger switch (598) is arranged at an outer position of a front side wall of the spring frame (597); an electromagnet (599) is arranged at an inner position of the front side wall of the spring frame (597); and a shunt assembly (596) is connected to the center position of the front side wall of the spring frame (597).

5. A locatable electronic cigarette production welding device according to claim 4, characterized in that: The shunt assembly (596) comprises a shunt iron core (5961), a return spring (5965) is fixedly connected to the rear side wall of the shunt iron core (5961), a triggering protrusion (5966) for use with a trigger switch (598) is arranged at the outer side of the rear side wall of the shunt iron core (5961), a suction groove (5967) for matching with the electromagnet (599) is arranged at the inner side of the rear side wall of the shunt iron core (5961), and a valve for connecting to the air bearing cylinder (552) is arranged in the middle of the shunt iron core (5961). ) and a straight exhaust groove (5962) for connecting the second air exhaust pipe (595), an exhaust bend groove (5963) for connecting the air bearing tube (552) and the first air exhaust pipe (594) is opened at the rear side of the diverter iron core (5961), and an air intake bend groove (5964) is opened at the rear side of the diverter iron core (5961), one end of the air intake bend groove (5964) is opened at the rear side wall of the diverter iron core (5961) and the other end is opened at the left side wall of the diverter iron core (5961) and is arranged at the front end of the exhaust hose (593).

6. A locatable electronic cigarette production welding device according to claim 5, characterized in that: The protective gas circulation drive mechanism (56) comprises an air outlet tube (562) installed at the center of the front side wall of the gas pre-storage box (571) and a fan mounting bracket (563) fixed to the left side wall of the welding outer box (51); a driving fan (564) is rotatably connected inside the fan mounting bracket (563); a rotating wheel (565) is fixedly connected to the bottom of the shaft of the fan mounting bracket (563); a fan housing (561) for covering the outside of the driving fan (564) is fixedly connected to the outer side wall of the fan mounting bracket (563); and the front end of the fan housing (561) is connected to the first air exhaust pipe (594). The rear end of the fan housing (561) is connected to the diversion box (576) through a pipeline, the lower side wall of the rotating wheel (565) is pin-connected to a hinge plate (568), the other end of the hinge plate (568) is pin-connected to a driving rod (566), the driving rod (566) is limitedly slidably connected to the center position of the air outlet cylinder (562), the other end of the driving rod (566) is fixedly connected to a valve piston plate (567), a plurality of valve plates that can only be opened in one direction backward are arranged on the valve piston plate (567), and the outer wall of the valve piston plate (567) is tightly fitted with the inner wall of the air outlet cylinder (562).

7. A locatable electronic cigarette production welding device according to claim 2, characterized in that: The blowing mechanism (58) comprises a blowing frame (581), a rear side wall of the blowing frame (581) is fixedly connected to a blowing pipe (582), and a top end of the blowing pipe (582) is connected to a blocking air bag (583).

8. A locatable electronic cigarette production welding device according to claim 7, characterized in that: A three-way valve (574) is fixedly connected to the rear side wall of the diversion box (576), and one of the ports of the three-way valve (574) is connected to the blocking airbag (583) via a pipeline.

Images