A human-machine shared, visually-enabled double-layer argon gas back protection device and welding method

Abstract

This invention discloses a human-machine shared, visualized, double-layer argon gas back-side protection device and welding method, including an argon chamber mechanism comprising an outer argon chamber and an inner argon chamber disposed within the outer argon chamber; the argon chamber mechanism also includes an airbag mechanism; the airbag mechanism includes a first airbag and a second airbag; the airbag mechanism also includes an argon gas inlet pipe structure for pumping argon gas, and an argon gas outlet pipe structure is connected to the airbag mechanism; a vent connector is installed on the argon gas outlet pipe structure; the inner argon chamber and the outer argon chamber form a double-layer argon gas atmosphere; the inner argon chamber is fixedly installed on the inner sidewall of the outer argon chamber by several spring reset structures; a monitoring mechanism is installed in the inner argon chamber to achieve real-time monitoring of the welded workpiece during the welding process. This technical solution achieves a visualized welding method by protectively covering the back of the welded workpiece, greatly reducing welding difficulty while improving welding efficiency.

Description

Technical Field

[0001] This invention belongs to the field of welding technology, and in particular relates to a human-machine shared, visual double-layer argon gas back protection device and welding method. Background Technology

[0002] Argon arc welding is an industrial welding method that uses an argon gas protective atmosphere to protect the workpiece during the welding process, such as preventing high-temperature oxidation.

[0003] Based on this, argon arc welding is widely used in industrial production as a welding process with better welding results. For example, Chinese Patent Publication No. CN112122740B discloses a welding method for high-alloy large-diameter pipes and its argon-filled protective device. This device includes: a V-shaped gas chamber, electromagnets, and a power supply line; the V-shaped gas chamber is an arc-shaped structure that matches the pipe, and the two ends of the V-shaped gas chamber are not connected. The cross-sectional structure of the V-shaped gas chamber includes a V-shaped part, a first side edge, a second side edge, and a shaping strip. The first and second side edges are respectively connected to the left and right sides of the upper edge of the V-shaped part, and both the first and second side edges are perpendicular to the vertical central axis of the V-shaped part. The shaping strip is an arc-shaped structure with the same curvature as the first and second side edges, and it is fixed to the lower surface of the side edges. Several electromagnets are evenly fixed to the lower surfaces of the first and second side edges, and each electromagnet is connected to a power supply line. This device enables argon arc welding of large-diameter pipes.

[0004] However, in actual welding operations, it is often necessary to protect the back side of the workpiece during the welding process. Specifically, since argon arc welding is only suitable for welding thin plates less than 5mm thick, the back side of the plate is prone to forming a molten pool due to heat during the welding process, so argon gas protection is required.

[0005] The current operating procedure involves the operator manually holding the argon chamber during welding, ensuring it is precisely aligned with the back of the weld, and adjusting it as the welding path moves to maintain the quality of the argon protection. This type of conventional device effectively provides the necessary argon atmosphere protection during the welding of open-structure components.

[0006] However, in actual welding processes, it is often necessary to perform argon arc welding on components with internal cavities or similar structures. Due to the limitations imposed by the shape of the workpiece, traditional handheld argon gas protection devices exhibit significant limitations, manifested in the following defects:

[0007] 1. Since the inside of the cavity cannot be directly observed with the naked eye and online monitoring is not possible, the quality of the weld seam produced by manual argon arc welding cannot meet the established standards and precise protection cannot be achieved.

[0008] 2. Open welding results in a large argon flow rate, low utilization rate, and serious waste of resources. Specifically, it is difficult to form a relatively stable and sealed argon atmosphere on the back of the welded workpiece.

[0009] 3. The low concentration of argon in the shielding gas, resulting from the mixing of argon with some oxygen, significantly reduces the shielding effect. Therefore, traditional argon shielding methods are clearly insufficient to meet the practical needs of welding complex structures like these. Summary of the Invention

[0010] Based on the above background, the purpose of this invention is to provide a human-machine shared, visual double-layer argon gas back protection device and welding method.

[0011] To achieve the above objectives, the present invention adopts the following technical solution:

[0012] A human-machine shared, visual, double-layer argon gas back protection device includes an argon gas chamber mechanism, which includes an outer argon gas chamber and an inner argon gas chamber disposed within the outer argon gas chamber;

[0013] The argon chamber mechanism also includes an airbag mechanism for moving the inner argon chamber to fit against the welded workpiece.

[0014] The airbag mechanism includes a first airbag located at the bottom of the inner argon chamber for lifting the inner argon chamber upwards, and a second airbag supported on the side of the inner argon chamber for side-lifting and side-moving the inner argon chamber.

[0015] The airbag mechanism also includes an argon inlet pipe structure for pumping argon gas, and an argon outlet pipe structure is connected to the airbag mechanism for pumping the argon gas in the airbag mechanism to the inner argon chamber.

[0016] The argon exhaust pipe structure is equipped with a vent connector. When the gas pressure inside the airbag mechanism reaches the threshold, the vent connector opens, and argon gas enters the inner argon chamber.

[0017] The inner argon chamber allows argon gas from the inner argon chamber to enter the outer argon chamber through the through-hole structure, forming a double-layer argon atmosphere.

[0018] The inner argon chamber is fixedly installed on the inner wall of the outer argon chamber by a number of spring reset structures, and the inner argon chamber is reset by the spring reset structures.

[0019] The inner argon chamber is equipped with a monitoring mechanism that monitors the back of the workpiece in real time during the welding process.

[0020] Preferably, the top and right side of the outer argon chamber and the inner argon chamber are open structures.

[0021] Preferably, the through-hole structure includes a plurality of through holes formed on the rear sidewall of the inner argon chamber.

[0022] Preferably, the argon inlet pipe structure includes an argon inlet pipe that penetrates through the rear side wall of the outer argon chamber, and the outlet end of the argon inlet pipe is integrally formed with a Y-shaped argon gas splitter pipe, and the two outlet ends of the argon gas splitter pipe are respectively connected to the first airbag and the second airbag.

[0023] Preferably, the argon exhaust pipe structure includes argon exhaust pipes that are respectively connected to the rear parts of the first airbag and the second airbag;

[0024] The argon exhaust pipe is integrally formed with a Y-shaped argon passage pipe.

[0025] The inlet end of the vent connector is connected to the argon gas pipe, and the outlet end of the vent connector is connected to the rear wall of the inner argon chamber.

[0026] Preferably, the vent connector includes a connector housing, and an inner partition is integrally formed inside the connector housing, which divides the housing cavity into an upper cavity and a lower cavity;

[0027] The connector housing is provided with a spring washer structure;

[0028] The lower cavity is divided into a first chamber and a second chamber. An air inlet structure is provided on the first chamber, and the air inlet structure is connected to the argon gas pipe.

[0029] The outlet of the second chamber is connected to the inner argon chamber.

[0030] Preferably, the spring gasket structure includes a sealing rubber ring located in the lower cavity, which connects the first chamber and the second chamber when opened and seals them when closed.

[0031] The connector housing is fixedly connected to a gasket bracket structure that mates with a sealing rubber ring, thereby sealing the first chamber and the second chamber through the sealing rubber ring and the gasket bracket structure.

[0032] The top of the sealing rubber ring is fixedly connected to a push rod that is slidably connected to the inner partition. The top of the push rod is fixedly connected to a gasket located in the upper cavity. The top of the gasket is fixedly connected to an elastic rubber layer. A spring lower gasket is installed on the top of the elastic rubber layer.

[0033] A return spring is fixedly connected to the top of the lower spring washer, and an upper spring washer is fixedly connected to the top of the return spring.

[0034] The connector housing is fixedly connected to a pressure-resistant cone head at the top position of the upper washer of the abutment spring;

[0035] When the air pressure inside the airbag mechanism reaches the threshold, the sealing rubber ring pushes the rod, the sealing rubber ring separates from the gasket support structure, and the first chamber and the second chamber open and connect, allowing argon gas to enter the second chamber from the first chamber. When the air pressure inside the airbag mechanism drops to the threshold, under the elastic force of the return spring, the sealing rubber ring returns to the gasket support structure, and the first chamber and the second chamber close and seal.

[0036] Preferably, the bottom and left side wall of the inner argon chamber are connected to the side wall of the outer argon chamber by a number of spring reset structures.

[0037] The spring reset structure includes spring seats that are fixedly connected to the inner argon chamber and the outer argon chamber respectively, and a spring is fixedly connected between the spring seats.

[0038] Preferably, the monitoring mechanism includes an industrial camera installed in an inner argon chamber, and the monitoring mechanism also includes a touch screen that works in conjunction with the industrial camera.

[0039] This invention also discloses a welding method for the aforementioned human-machine shared, visual, double-layer argon gas back protection device, comprising the following steps:

[0040] S1. Initially attach the outer argon chamber to the welding workpiece;

[0041] S2. Argon gas is pumped into the airbag mechanism. Under the upward action of the first airbag, the inner argon chamber is pushed up to correspond to the height of the back of the workpiece. Under the side push of the second airbag, the right side of the inner argon chamber moves to fit against the workpiece and forms a sealed area with the back of the workpiece.

[0042] S3. When the air pressure in the airbag mechanism reaches the air pressure threshold of the venting connector, the venting connector opens, and argon gas enters the inner argon chamber to form an argon atmosphere.

[0043] At the same time, argon gas in the inner argon chamber enters the outer argon chamber through the through-hole structure, forming a double-layer argon atmosphere;

[0044] S4. During the welding process, the back of the welded workpiece is observed through the monitoring system, which can observe the welding trajectory 360 degrees without blind spots.

[0045] S5. After welding is completed, during the argon gas venting process in the first and second airbags, the argon chamber inside the spring reset structure is reset.

[0046] The present invention has the following beneficial effects:

[0047] 1. During the welding process, argon gas (argon cylinder) is introduced into the gasbag mechanism. The first and second gasbags are used to adjust the posture of the inner argon chamber covering the back of the workpiece (the welding surface is the front), so that the inner argon chamber can fully cover the back of the workpiece.

[0048] In this process, an airbag is cleverly used to adjust the height of the inner argon chamber to correspond with the height of the covered area, and to push it horizontally to the back of the workpiece covered. Because the adjustment is made through the airbag, it can first be adjusted within the argon atmosphere without disrupting the atmosphere (i.e., without opening the entire device). Secondly, after adjustment is achieved through the airbag, the large-area elastic resistance of the airbag ensures that the inner argon chamber is fully pressed against the back of the workpiece.

[0049] Specifically, the airbag has a large contact surface, which, upon contact, can maintain the stability of the inner argon chamber cover and seal, and increase the stability and efficiency of the welding process.

[0050] 2. Argon gas in the inner argon chamber enters the outer argon chamber through a through-hole structure (the through-hole structure includes several through holes opened on the rear side wall of the inner argon chamber), forming a double-layer argon atmosphere. That is, during the welding operation, the purity of the argon atmosphere in the inner argon chamber is further improved by the double-layer argon atmosphere formed in the inner and outer argon chambers.

[0051] 3. During operation, when the air pressure inside the airbag mechanism reaches the threshold (i.e., the pressure required for the sealing rubber ring to lift), the sealing rubber ring pushes the rod, the sealing rubber ring separates from the gasket support structure, and the first chamber and the second chamber open and connect, allowing argon gas to enter the second chamber from the first chamber. When the air pressure inside the airbag mechanism drops to the threshold, under the elastic force of the return spring, the sealing rubber ring returns to the gasket support structure, and the first chamber and the second chamber close and seal.

[0052] When the gas pressure reaches the threshold, the sealing rubber ring overcomes the elastic pressure of the return spring and pushes up to disengage from the gasket support structure. At this time, the first chamber and the second chamber are connected and opened, and argon gas enters the second chamber from the first chamber and is discharged into the inner argon chamber.

[0053] This ingenious design ensures that, during operation, the argon pressure in the first and second airbags is maintained at a sufficient value to push the inner argon chamber. Secondly, when the argon pressure exceeds a certain value, argon is discharged into the inner argon chamber, ensuring that the inner argon chamber is fully filled with a certain concentration of argon, thus maintaining a high argon concentration in the formed argon atmosphere and improving the argon atmosphere effect.

[0054] 4. The spring-reset structure enables rapid repositioning of the inner argon chamber during operation. As the inner argon chamber moves upwards and to the right, the spring, possessing both elastic force and a degree of freedom (allowing for deformation during tension, including vertical and bending), returns to its original position under the elastic restoring force of the spring after welding. This method significantly increases operational flexibility and convenience, enhancing practicality.

[0055] 5. During the welding process, an industrial camera is used to observe the back of the workpiece. The industrial camera can observe the welding trajectory from 360 degrees without blind spots, enabling real-time monitoring of the back of the workpiece during the welding operation. This method greatly improves the visualization of the welding process, enabling welding to be performed visually, which not only improves welding efficiency but also allows for real-time monitoring of the welding process. Attached Figure Description

[0056] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0057] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present invention;

[0058] Figure 2 This is a magnified schematic diagram of the industrial camera structure in an embodiment of the present invention;

[0059] Figure 3 This is a schematic diagram of the installation position of the vent connector in an embodiment of the present invention;

[0060] Figure 4 This is a schematic diagram of the airbag mechanism in an embodiment of the present invention;

[0061] Figure 5 This is a cross-sectional view of the vent connector in an embodiment of the present invention;

[0062] Figure 6 This is a schematic diagram of the monitoring mechanism in an embodiment of the present invention;

[0063] Figure 7 This is a schematic diagram of the spring reset structure in an embodiment of the present invention.

[0064] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0065] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0066] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0067] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0068] Example 1

[0069] like Figure 1-7 As shown, a human-machine shared, visually-enabled, double-layered argon gas back protection device includes an argon gas chamber mechanism, which includes an outer argon gas chamber 1 and an inner argon gas chamber 2 disposed within the outer argon gas chamber 1.

[0070] The outer argon chamber 1 and the inner argon chamber 2 are open at the top and right side. In actual operation, the size of the outer argon chamber 1 and the inner argon chamber 2 corresponds to the size of the workpiece being welded, and their shape can correspond to the shape of the workpiece in various ways (not limited to a cuboid structure).

[0071] The aforementioned argon chamber mechanism also includes an airbag mechanism 3 for moving the inner argon chamber 2 to fit against the welding workpiece; the airbag mechanism 3 includes a first airbag 31 located at the bottom of the inner argon chamber 2 for lifting the inner argon chamber 2 upwards and a second airbag 32 supported at the side of the inner argon chamber 2 for side-lifting and side-moving the inner argon chamber 2.

[0072] Meanwhile, the airbag mechanism 3 also includes an argon inlet pipe structure for pumping argon gas. The airbag mechanism 3 is connected to an argon outlet pipe structure 4 for pumping the argon gas in the airbag mechanism 3 to the inner argon chamber 2. An air vent 5 is installed on the argon outlet pipe structure 4. When the gas pressure in the airbag mechanism 3 reaches the threshold, the air vent 5 is opened, and the argon gas enters the inner argon chamber 2.

[0073] In this method, argon gas (argon cylinder) is introduced into the airbag mechanism 3 during the working process. The first airbag 31 and the second airbag 32 are used to adjust the posture of the inner argon chamber 2 that covers the back of the workpiece (the welding surface is the front), so that the inner argon chamber 2 can fully cover the back of the workpiece.

[0074] In this process, the inner argon chamber 2 is cleverly adjusted in height to correspond to the height of the covered area, and then horizontally pushed to the back of the workpiece covered. Because the adjustment is made through the airbag, it can first be adjusted within the argon atmosphere without disrupting the atmosphere (i.e., without opening the entire device). Secondly, after adjustment via the airbag, the large-area elastic force of the airbag ensures that the inner argon chamber 2 is fully pressed against the back of the workpiece.

[0075] Specifically, the airbag has a large contact surface, which, upon contact, can maintain the stability of the inner argon chamber cover and seal, and increase the stability and efficiency of the welding process.

[0076] Meanwhile, through a through-hole structure (which includes several through holes 21 on the rear sidewall of the inner argon chamber 2), argon gas in the inner argon chamber 2 enters the outer argon chamber 1 during operation, forming a double-layer argon atmosphere. That is, during welding operations, the purity of the argon atmosphere in the inner argon chamber 2 is further improved by the double-layer argon atmosphere formed in the inner argon chamber 2 and the outer argon chamber 1.

[0077] Specifically, during the welding process, even if the inner argon chamber 2 does not completely cover the welding area, the outer layer of the inner argon chamber 2 has an argon atmosphere (argon protective layer), thus improving the welding effect under the double argon atmosphere.

[0078] The aforementioned inner argon chamber 2 is fixedly installed on the inner wall of the outer argon chamber 1 by a number of spring reset structures 6, and the inner argon chamber 2 is reset by the spring reset structures 6.

[0079] After the welding operation is completed, the inner argon chamber 2 is automatically reset by the spring reset structure 6, which increases the flexibility and practicality of the entire device.

[0080] Meanwhile, a monitoring mechanism is installed inside the aforementioned inner argon chamber 2 to monitor the back of the welded workpiece in real time during the welding process.

[0081] Example 2

[0082] like Figure 1-7 As shown, based on the structure of Embodiment 1, the above-mentioned argon gas inlet pipe structure includes an argon gas inlet pipe 33 that passes through the rear side wall of the outer argon gas chamber 1 (the argon gas inlet pipe 33 is connected to the center of the rear side wall of the outer argon gas chamber 1). The outlet end of the argon gas inlet pipe 33 is integrally formed with a Y-shaped argon gas diversion pipe 331. The two outlet ends of the argon gas diversion pipe 331 are respectively connected to the first airbag 31 and the second airbag 32.

[0083] In actual operation, in order to facilitate the deformation and movement of the first airbag 31 and the second airbag 32, the material of the above-mentioned argon inlet pipe 33 structure can be designed as rubber, that is, a rubber hose design can be adopted.

[0084] Example 3

[0085] like Figure 1-7 As shown, based on the structure of Embodiment 2, the above-mentioned argon exhaust pipe structure 4 includes an argon exhaust pipe 41 that is connected to the rear side of the first airbag 31 and the second airbag 32 respectively (the first airbag 31 and the second airbag 32 are respectively provided with a first interface 411 and a second interface 421 for connecting the argon exhaust pipe 41); the argon exhaust pipe 41 is integrally formed with a Y-shaped argon passage pipe 42; the inlet end of the venting connector 5 is installed and connected to the argon passage pipe 42, and the outlet end of the venting connector 5 is installed and connected to the center of the rear side wall of the inner argon chamber 2.

[0086] Example 4

[0087] like Figure 1-7 As shown, in this embodiment, based on the structure of embodiment 3, the vent connector 5 includes a connector housing 51. An inner partition 511 is integrally formed within the connector housing 51, dividing the housing cavity into an upper cavity and a lower cavity. A spring gasket structure is provided inside the connector housing 51.

[0088] Specifically, the lower cavity is divided into a first chamber A and a second chamber B. The first chamber A has an air inlet structure, which is connected to the argon gas pipe 42 (i.e., after argon gas enters the airbag mechanism 3 and is discharged, it enters the air inlet connector 5 through the argon gas pipe 42). At the same time, the air outlet of the second chamber B is connected to the inner argon gas chamber 2 (specifically, according to the existing method, the air outlet of the second chamber B can be connected to the inner argon gas chamber 2 by connecting a flexible hose to facilitate the movement of the inner argon gas chamber 2).

[0089] The aforementioned spring washer structure includes a sealing rubber ring 52 located in the lower cavity, which opens and connects the first chamber A and the second chamber B and seals them after closing; a washer bracket structure 50 that mates with the sealing rubber ring 52 is fixedly connected inside the connector housing 51, which seals the first chamber A and the second chamber B through the sealing rubber ring 52 and the washer bracket structure 50; a push rod 53 that slides through the inner partition 511 is fixedly connected to the top of the sealing rubber ring 52, a washer 54 located in the upper cavity is fixedly connected to the top of the push rod 53, an elastic rubber layer 55 is fixedly connected to the top of the washer 54, a lower spring washer 56 is installed on the top of the elastic rubber layer 55; a return spring 59 is fixedly connected to the top of the lower spring washer 56, and an upper spring washer 57 is fixedly connected to the top of the return spring 59; a pressure-resistant cone 58 that abuts against the top of the upper spring washer 57 is fixedly connected inside the connector housing 51.

[0090] During operation, when the air pressure inside the airbag mechanism 3 reaches the threshold (i.e., the pressure required for the sealing rubber ring 52 to be lifted), the sealing rubber ring 52 pushes the push rod 53, and the sealing rubber ring 52 disengages from the gasket support structure 50. The first chamber A and the second chamber B open and connect, and argon gas enters the second chamber B from the first chamber A. When the air pressure inside the airbag mechanism 3 drops to the threshold, under the elastic force of the return spring 59, the sealing rubber ring 52 returns to the gasket support structure 50, and the first chamber A and the second chamber B close and seal.

[0091] The aforementioned gasket support structure 50 includes an inclined support portion 501 integrally formed on the inner wall of the connector housing 51 and a vertically arranged vertical support portion 502. The bottom of the sealing rubber ring 52 is supported on the inclined support portion 501 and the vertical support portion 502. Under normal circumstances, due to the elastic pressure of the return spring 59, the seal is maintained, that is, the first chamber A and the second chamber B are closed.

[0092] When the air pressure reaches the threshold, the sealing rubber ring 52 overcomes the elastic pressure of the return spring 59 and pushes up to disengage from the gasket support structure 50. At this time, the first chamber A and the second chamber B are connected and opened. Argon gas enters the second chamber B from the first chamber A and is discharged into the inner argon chamber 2.

[0093] This ingenious design ensures that, during operation, the argon pressure inside the first airbag 31 and the second airbag 32 is maintained at a sufficient level, thus pushing the inner argon chamber 2. Furthermore, when the argon pressure exceeds a certain value, argon is discharged into the inner argon chamber 2, ensuring that the inner argon chamber 2 is fully filled with a certain concentration of argon, thereby maintaining a high argon concentration in the formed argon atmosphere and improving the argon atmosphere effect.

[0094] Example 5

[0095] like Figure 1-7 As shown, in this embodiment, based on the structure of embodiment 4, the bottom of the inner argon chamber 2 and the left side wall are respectively connected to the side wall of the outer argon chamber 1 by a number of spring reset structures 6.

[0096] Specifically, two spring-reset structures 6 are arranged in a front-to-back configuration between the left side wall of the inner argon chamber 2 and the left side wall of the outer argon chamber 1. Two spring-reset structures 6 are also arranged in a front-to-back configuration between the bottom of the inner argon chamber 2 and the top of the outer argon chamber 1.

[0097] The aforementioned spring reset structure 6 includes spring seats 61 that are fixedly connected to the inner argon chamber 2 and the outer argon chamber 1 respectively, and springs 62 are fixedly connected between the spring seats 61.

[0098] During operation, as the inner argon chamber 2 moves upwards and to the right, spring 62 not only possesses elasticity but also a certain degree of freedom, meaning it can deform during stretching. This deformation includes both vertical and bending deformation. This mechanism allows the spring 62 to return to its original position under its elastic restoring force after welding is completed.

[0099] Example 6

[0100] like Figure 1-7 As shown, based on the structure of embodiment 5, the monitoring mechanism includes an industrial camera 7 installed in the inner argon chamber 2 (the data cable 71 of the industrial camera 7 runs through the entire device to the outside and is connected to the touch screen 8), and the monitoring mechanism also includes a touch screen 8 that cooperates with the industrial camera 7.

[0101] During the welding process, the back of the workpiece is observed through industrial camera 7. Industrial camera 7 provides 360-degree, blind-spot-free observation of the welding trajectory, enabling real-time monitoring of the back of the workpiece during welding. This significantly improves the visualization of the welding process, allowing for visual welding, which not only increases welding efficiency but also enables real-time monitoring of the welding process.

[0102] Example 7

[0103] like Figure 1-7 As shown, based on the structure of Example 5, the welding method of the above-mentioned human-machine shared visual double-layer argon gas back protection device includes the following steps:

[0104] S1. Initially attach the outer argon chamber 1 to the welding workpiece;

[0105] S2. Argon gas is pumped into the airbag mechanism 3. Under the upward action of the first airbag 31, the inner argon chamber 2 is pushed up to correspond to the height of the back of the welding workpiece. Under the side push action of the second airbag 32, the inner argon chamber 2 moves to the right side to fit against the welding workpiece and forms a sealed area with the back of the welding workpiece.

[0106] S3. When the air pressure in the airbag mechanism 3 reaches the air pressure threshold of the venting connector 5, the venting connector 5 opens and argon gas enters the inner argon chamber 2 to form an argon atmosphere.

[0107] At the same time, the argon gas in the inner argon chamber 2 enters the outer argon chamber 1 through the through-hole structure, forming a double-layer argon atmosphere;

[0108] S4. During the welding process, the back of the welded workpiece is observed through the monitoring system, which can observe the welding trajectory 360 degrees without blind spots.

[0109] S5. After welding is completed, during the argon gas venting process in the first airbag 31 and the second airbag 32, the argon chamber 2 in the spring reset structure 6 is reset.

[0110] Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A dual layer argon backside protection device for human-machine co-visualization, characterized in that, The argon chamber mechanism comprises an outer argon chamber and an inner argon chamber arranged in the outer argon chamber; The argon chamber mechanism further comprises a gas bag mechanism for pushing the inner argon chamber to adhere to the welding workpiece; The gas bag mechanism comprises a first gas bag arranged at the bottom of the inner argon chamber for lifting the inner argon chamber upward and a second gas bag arranged at the side of the inner argon chamber for moving the inner argon chamber laterally; The gas bag mechanism further comprises an argon inlet pipe structure for pumping argon, and an argon outlet pipe structure is connected to the gas bag mechanism for pumping the argon in the gas bag mechanism into the inner argon chamber; An air inlet joint is installed on the argon outlet pipe structure, which is opened when the air pressure in the gas bag mechanism reaches a threshold value, and argon enters the inner argon chamber; The argon in the inner argon chamber enters the outer argon chamber through the through-hole structure to form a double-layer argon atmosphere; The inner argon chamber is fixedly installed on the inner side wall of the outer argon chamber through a plurality of spring reset structures, and the argon chamber is automatically reset through the spring reset structures; A monitoring mechanism is installed in the inner argon chamber to monitor the back of the welding workpiece in real time during welding; The top and right side of the outer argon chamber and the inner argon chamber are open structures; The through-hole structure comprises a plurality of through-holes opened on the rear side wall of the inner argon chamber; The argon outlet pipe structure comprises an argon outlet pipe connected to the rear side of the first gas bag and the second gas bag respectively; The argon outlet pipe is integrally formed with a Y-shaped argon inlet pipe; The air inlet end of the air inlet joint is installed and connected to the argon inlet pipe, and the air outlet end of the air inlet joint is installed and connected to the rear side wall of the inner argon chamber; The air inlet joint comprises a joint shell, and an inner partition is integrally formed in the joint shell, which divides the shell cavity into an upper cavity and a lower cavity; A spring gasket structure is arranged in the joint shell; The lower cavity is divided into a first cabin and a second cabin, the first cabin is provided with an air inlet structure, and the air inlet structure is connected to the argon inlet pipe; The air outlet of the second cabin is connected to the inner argon chamber; The spring gasket structure comprises a sealing rubber ring in the lower cavity, which opens and connects the first cabin and the second cabin and seals after being closed; The joint shell is fixedly connected with a gasket support structure matched with the sealing rubber ring, and the first cabin and the second cabin are sealed by the sealing rubber ring and the gasket support structure; The top of the sealing rubber ring is fixedly connected with a push rod slidingly connected with the inner partition, the top of the push rod is fixedly connected with a gasket in the upper cavity, the top of the gasket is fixedly connected with an elastic rubber layer, and the top of the elastic rubber layer is installed with a spring lower gasket; The top of the spring lower gasket is fixedly connected with a reset spring, and the top of the reset spring is fixedly connected with a spring upper gasket; The joint shell is fixedly connected with a pressure-resistant cone head abutting against the top of the spring upper gasket; When the air pressure in the air bag mechanism reaches the threshold, the sealing rubber ring pushes the push rod, the sealing rubber ring is separated from the gasket support structure, the first chamber and the second chamber are opened and communicated, the argon gas enters the second chamber from the first chamber, and when the air pressure in the air bag mechanism decreases to the threshold, the sealing rubber ring is reset to the gasket support structure under the elastic force of the reset spring, and the first chamber and the second chamber are closed and sealed.

2. The dual layer argon backside protection device for human-machine co- visualization of claim 1, wherein, The argon gas inlet pipe structure includes an argon gas inlet pipe penetrating from the rear side wall of the outer argon gas chamber, and the outlet end of the argon gas inlet pipe is integrally formed with a Y-shaped argon gas shunt pipe, and the two outlet ends of the argon gas shunt pipe are respectively communicated with the first air bag and the second air bag.

3. The dual layer argon backside protection device for human-machine co- visualization of claim 1, wherein, The bottom and the left side wall of the inner argon gas chamber are respectively connected to the side wall of the outer argon gas chamber through a plurality of spring reset structures. The spring reset structure includes spring seats fixedly connected to the inner argon gas chamber and the outer argon gas chamber, and a spring is fixedly connected between the spring seats.

4. The dual layer argon backside protection device for human common visualization of claim 1, wherein, The monitoring mechanism includes an industrial camera arranged in the inner argon gas chamber, and the monitoring mechanism further includes a touch display screen cooperating with the industrial camera.

5. The method of welding with a dual layer argon backshield for human- shared visualization of claim 1-4, wherein, The method comprises the following steps: S1, initially fit the outer argon gas chamber to the welding workpiece and weld; S2, pump argon into the air bag mechanism, and under the upward thrust of the first air bag, the inner argon gas chamber is lifted to correspond to the height of the back of the welding workpiece; under the side thrust of the second air bag, the right side of the inner argon gas chamber moves to fit on the welding workpiece and forms a sealed area with the back of the welding workpiece; S3, when the air pressure in the air bag mechanism reaches the air pressure threshold of the air inlet connector, the air inlet connector is opened at this time, and argon enters the inner argon gas chamber to form an argon atmosphere; At the same time, the argon in the inner argon gas chamber enters the outer argon gas chamber from the through hole structure to form a double-layer argon atmosphere; S4, observe the back of the welding workpiece during welding through the monitoring system, and the monitoring system can observe the welding track in 360 degrees without dead angle; S5, after welding, during the argon emptying process in the first air bag and the second air bag, the argon chamber is reset through the spring reset structure.

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