Man-machine shared visual double-layer argon back protection device and welding method

Abstract

The invention discloses a man-machine shared visual double-layer argon back protection device and a welding method. The man-machine shared visual double-layer argon back protection device comprises an argon chamber mechanism, and 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 an air bag mechanism. The airbag mechanism comprises a first airbag and a second airbag; the air bag mechanism further comprises an argon inlet pipe structure used for pumping argon, and the air bag mechanism communicates with an argon outlet pipe structure. A ventilation joint is mounted on the argon discharging pipe structure; the inner argon chamber and the outer argon chamber form a double-layer argon atmosphere; the inner argon chamber is fixedly mounted on the inner side wall of the outer argon chamber through a plurality of spring reset structures; and a monitoring mechanism is mounted in the inner argon chamber, and a welding workpiece is monitored in real time in the welding process through the monitoring mechanism. According to the technical scheme, the back face of the welded workpiece is covered in a protective mode in a visual welding mode, the welding difficulty is greatly reduced, and meanwhile the welding efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of welding, and in particular relates to a human-machine shared visualized double-layer argon gas back side protection device and a welding method. Background Art

[0002] Argon arc welding is a method of industrial welding. During the welding process, an argon protective atmosphere is provided to protect the workpiece, such as preventing the workpiece from high-temperature oxidation.

[0003] Based on this, argon arc welding is widely used as a welding process with better welding effect in industrial production. For example, the Chinese patent application number is: CN112122740B, which discloses a high-alloy large-diameter pipeline welding method and an argon filling protection device. The device includes: a V-shaped air chamber, an electromagnet and a power cord; the V-shaped air chamber is an arc-shaped structure that matches the pipeline as a whole, and the two ends of the V-shaped air chamber are not connected. The cross-sectional structure of the V-shaped air chamber includes a V-shaped portion, a first side edge, a second side edge and a shaping strip, the first side edge and the second side edge are respectively connected to the left and right sides of the upper edge of the V-shaped portion, and the first side edge and the second side edge are both perpendicular to the vertical center axis of the V-shaped portion. The shaping strip is an arc-shaped structure with the same curvature as the first side edge and the second side edge, which is fixed on the lower surface of the side edge. A plurality of electromagnets are evenly fixed at the lower surfaces of the first side edge and the second side edge, and each electromagnet is connected to a power cord. The device is used to achieve argon arc welding of large-diameter pipelines.

[0004] However, in actual welding operations, the back of the workpiece often needs to be protected during the welding process. Specifically, since argon arc welding is only suitable for welding thin plates below 5 mm, a molten pool is easily formed on the back of the plate due to heat during the welding process, so argon gas protection is required.

[0005] The current operation method is that during welding, the operator needs to manually hold the argon chamber to ensure that it is accurately aligned with the back of the weld and adjust it as the welding path moves to maintain the quality of argon protection. Such conventional devices can effectively provide the required argon atmosphere protection during the welding process of open structure parts.

[0006] However, in the actual welding process, it is often necessary to perform argon arc welding on parts with inner cavity or similar inner cavity structures. Due to the limitations of the workpiece structure shape, the traditional handheld argon protection device has obvious limitations, which are reflected in the following defects:

[0007] 1. Since the situation inside the cavity cannot be directly observed by the naked eye, online monitoring cannot be achieved, which directly leads to the failure of the weld quality of manual argon arc welding to meet the established standards and the inability to achieve accurate protection;

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

[0009] 3. The argon concentration in the shielding gas is low, and the result of the mixture of argon and some oxygen greatly reduces the shielding effect. Therefore, for welding operations of such complex structures, the traditional argon shielding method obviously cannot fully meet the actual needs. Summary of the invention

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

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

[0012] A human-machine shared visualized double-layer argon back protection device, comprising an argon chamber mechanism, wherein the argon chamber mechanism comprises an outer argon chamber and an inner argon chamber arranged in the outer argon chamber;

[0013] The argon chamber mechanism also includes an airbag mechanism for pushing the inner argon chamber to move to fit on the welding workpiece;

[0014] The airbag mechanism comprises a first airbag arranged at the bottom of the inner argon gas chamber for lifting the inner argon gas chamber and a second airbag supported at the side of the inner argon gas chamber for sideways pushing and moving the inner argon gas chamber;

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

[0016] The argon exhaust pipe structure is provided with a venting joint, and when the air pressure in the airbag mechanism reaches a threshold value, the venting joint opens, and argon enters the inner argon chamber;

[0017] Argon in the inner argon chamber enters the outer argon chamber through the through-hole structure to form a double-layer argon atmosphere;

[0018] The inner argon chamber is fixedly mounted on the inner side wall of the outer argon chamber through a plurality of spring reset structures, and the inner argon chamber is reset by the spring reset structures;

[0019] A monitoring mechanism is installed in the inner argon gas chamber, and the back side of the welding workpiece is monitored in real time during the welding process through the monitoring mechanism.

[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 comprises a plurality of through holes opened on the rear side wall of the inner argon chamber.

[0022] Preferably, the argon inlet pipe structure includes an argon inlet pipe passing 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 shunt pipe, and the two outlet ends of the argon shunt pipe are respectively connected to the first airbag and the second airbag.

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

[0024] The argon exhaust pipe is integrally formed with an argon passing pipe of a Y-shaped structure;

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

[0026] Preferably, the vent joint comprises a joint shell, an inner baffle is integrally formed in the joint shell, and the inner baffle divides the shell cavity of the shell into an upper cavity and a lower cavity;

[0027] A spring washer structure is provided in the joint housing;

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

[0029] The gas 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, through which the first cavity and the second cavity are opened and connected, and closed and sealed;

[0031] A gasket support structure matched with the sealing rubber ring is fixedly connected in the joint housing, and the first chamber cavity and the second chamber cavity are sealed by the sealing rubber ring and the gasket support structure;

[0032] The top of the sealing rubber ring is fixedly connected to a push rod slidably connected to the inner baffle part, 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, and a spring lower gasket is installed on the top of the elastic rubber layer;

[0033] The top of the spring lower gasket is fixedly connected with a return spring, and the top of the return spring is fixedly connected with a spring upper gasket;

[0034] A compression-resistant cone head is fixedly connected in the joint housing and contacts the top position of the gasket on the spring;

[0035] When the air pressure in the airbag mechanism reaches the threshold value, the sealing rubber ring pushes up the push rod, the sealing rubber ring separates from the gasket support structure, the first chamber and the second chamber are opened and connected, and argon gas enters the second chamber from the first chamber; when the air pressure in the airbag mechanism drops to the threshold value, under the action of the elastic force of the reset spring, the sealing rubber ring resets to the gasket support structure, and the first chamber and the second chamber are closed and sealed.

[0036] Preferably, the bottom and the left side wall of the inner argon chamber are connected to the side wall of the outer argon chamber through a plurality of spring return structures respectively;

[0037] The spring return structure comprises spring seats which are respectively fixedly connected to the inner argon chamber and the outer argon chamber, and springs are fixedly connected between the spring seats.

[0038] Preferably, the monitoring mechanism includes an industrial camera arranged in the inner argon chamber, and the monitoring mechanism also includes a touch display screen cooperating with the industrial camera.

[0039] The present invention also discloses a welding method for the above-mentioned human-machine shared visualized 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, pumping argon gas into the airbag mechanism, and under the upward push of the first airbag, the inner argon chamber is pushed up to a height corresponding to the back side of the welding workpiece; under the side push of the second airbag, the right side of the inner argon chamber moves to fit on the welding workpiece and forms a sealing area with the back side of the welding workpiece;

[0042] S3, when the air pressure in the airbag mechanism reaches the ventilation pressure threshold of the ventilation joint, the ventilation joint is opened, and argon gas enters the inner argon chamber to form an argon atmosphere;

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

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

[0045] S5. After welding is completed, during the process of evacuating the argon gas in the first airbag and the second airbag, the argon gas chamber in the spring reset structure is reset.

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

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

[0048] In this process, the airbag is cleverly used to adjust the height of the inner argon chamber to correspond to the height of the cover area, and to push it horizontally to the back of the cover workpiece. In this process, because the airbag is used for adjustment, firstly, it can be adjusted in the argon atmosphere without destroying the argon atmosphere (that is, there is no need to open the entire device). Secondly, after the adjustment is achieved through the airbag, the large-area elastic resistance of the airbag is used to ensure that the inner argon chamber can be fully pressed against the back of the workpiece.

[0049] Specifically, the airbag has a larger contact surface, which can maintain the stability of the inner argon chamber cover and seal after collision, and increase the stability and efficiency during welding operations.

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

[0051] 3. During the working process, when the air pressure in the airbag mechanism reaches the threshold value (i.e., the pressure value required for the sealing rubber ring to lift up), the sealing rubber ring pushes up the push rod, the sealing rubber ring is separated from the gasket support structure, the first chamber and the second chamber are opened and connected, and argon gas enters the second chamber from the first chamber. When the air pressure in the airbag mechanism drops to the threshold value, under the action of the elastic force of the reset spring, the sealing rubber ring is reset to the gasket support structure, and the first chamber and the second chamber are closed and sealed.

[0052] When the air pressure value reaches the threshold, the sealing rubber ring overcomes the elastic pressure of the return spring and pushes up to separate from the gasket bracket structure. At this time, the first chamber and the second chamber are in a connected opening device, and the argon gas enters the second chamber from the first chamber and is discharged into the inner argon chamber.

[0053] This ingenious design can achieve the following goals during the working process: firstly, the argon pressure in the first airbag and the second airbag can be kept at a sufficient pressure value so as to push the inner argon chamber; secondly, when the argon pressure exceeds a certain value, the argon is discharged into the inner argon chamber, thereby ensuring that the inner argon chamber can be fully filled with argon of a certain concentration, that is, maintaining a high argon concentration in the formed argon atmosphere, thereby improving the argon atmosphere effect.

[0054] 4. The spring reset structure is used to realize that during the working process, when the inner argon chamber is pushed up and moves to the right, the spring not only has elastic force, but also has a certain degree of freedom, that is, if the spring can be deformed during the stretching process, including vertical deformation and bending deformation. In this way, during the working process, when the welding is completed, it is reset under the elastic restoring force of the spring. In this way, the inner argon chamber is quickly reset after the welding is completed, which greatly increases the flexibility and convenience of the operation and improves the practicality.

[0055] 5. During the welding process, the back of the welding workpiece can be observed through the industrial camera. The welding trajectory can be observed 360 degrees without blind spots through the industrial camera. During the welding operation, the back of the workpiece can be monitored in real time using the industrial camera. This method greatly improves the visualization of the welding process, and realizes visual welding during welding operations, which not only improves the welding efficiency, but also realizes real-time monitoring of welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

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

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

[0059] Figure 3 It is a structural schematic diagram of the installation position of the ventilation joint in an embodiment of the present invention;

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

[0061] Figure 5 is a cross-sectional view of a vent joint according to an embodiment of the present invention;

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

[0063] Figure 7 Schematic diagram of the structure of the spring return structure in the embodiment of the present invention.

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

[0065] 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.

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

[0067] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0068] Example 1

[0069] like Figure 1-7 As shown, a human-machine shared visualized double-layer argon back protection device includes an argon chamber mechanism, wherein the argon chamber mechanism includes an outer argon chamber 1 and an inner argon chamber 2 arranged in the outer argon chamber 1.

[0070] The shapes of the outer argon chamber 1 and the inner argon chamber 2 are as follows: the top and right side of the outer argon chamber 1 and the inner argon chamber 2 are open structures. In actual working process, the size of the outer argon chamber 1 and the inner argon chamber 2 corresponds to the size of the welding workpiece, and their shapes correspond to the shape of the welding workpiece and can be various shapes (not limited to a cube structure).

[0071] The above-mentioned argon chamber mechanism also includes an airbag mechanism 3 for pushing the inner argon chamber 2 to move to fit on the welding workpiece; the airbag mechanism 3 includes a first airbag 31 arranged at the bottom position of the inner argon chamber 2 for lifting the inner argon chamber 2 and a second airbag 32 supported at the side position of the inner argon chamber 2 for sideways pushing and moving the inner argon chamber 2.

[0072] At the same time, the airbag mechanism 3 also includes an argon inlet pipe structure for pumping argon gas, and the airbag mechanism 3 is connected to an argon exhaust pipe structure 4 for pumping the argon gas in the airbag mechanism 3 to the inner argon chamber 2; a vent joint 5 is installed on the argon exhaust pipe structure 4, and when the air pressure in the airbag mechanism 3 reaches a threshold value, the vent joint 5 opens, and argon gas enters the inner argon chamber 2.

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

[0074] In this process, the airbag is cleverly used to adjust the height of the inner argon chamber 2 to correspond to the height of the cover area, and to push it horizontally to the back of the cover workpiece. In this process, because the airbag is used for adjustment, firstly, it can be adjusted in the argon atmosphere without destroying the argon atmosphere (that is, there is no need to open the entire device). Secondly, after the adjustment is achieved through the airbag, the large-area elastic resistance of the airbag is used to ensure that the inner argon chamber 2 can be fully pressed against the back of the workpiece.

[0075] Specifically, the airbag has a larger contact surface, and after the collision, it can maintain the stability of the cover and seal of the inner argon chamber 2 and increase the stability and efficiency during the welding operation.

[0076] At the same time, the inner argon chamber 2 passes through the through-hole structure (the through-hole structure includes a plurality of through-holes 21 opened on the rear side wall of the inner argon chamber 2), and during operation, the argon in the inner argon chamber 2 enters the outer argon chamber 1 to form a double-layer argon atmosphere. That is, during the welding operation, the purity of the argon atmosphere in the inner argon chamber 2 is further improved through 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 fails to cover the welding area without blind spots, because the outer layer of the inner argon chamber 2 also has an argon atmosphere (argon protective layer), the welding operation effect is improved under the double argon atmosphere.

[0078] The inner argon chamber 2 is fixedly mounted on the inner wall of the outer argon chamber 1 via a plurality of spring return structures 6 , and the inner argon chamber 2 is returned to its original position via the spring return structures 6 .

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

[0080] At the same time, a monitoring mechanism is installed in the inner argon chamber 2, and the back side of the welding workpiece is monitored in real time during the welding process through the monitoring mechanism.

[0081] Example 2

[0082] like Figure 1-7 As shown, based on the structure of Example 1, the argon gas inlet pipe structure of this embodiment includes an argon gas inlet pipe 33 penetrating from the rear side wall of the outer argon gas chamber 1 (the argon gas inlet pipe 33 is connected to the central part of the rear side wall of the outer argon gas chamber 1), and the gas outlet end of the argon gas inlet pipe 33 is integrally formed with a Y-shaped argon gas diversion pipe 331, and the two gas 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 working process, in order to facilitate the deformation movement of the first airbag 31 and the second airbag 32, the material of the argon inlet pipe 33 structure can be designed to be a rubber material, that is, a rubber hose design is adopted.

[0084] Example 3

[0085] like Figure 1-7 As shown, in this embodiment, based on the structure of embodiment 2, the above-mentioned argon exhaust pipe structure 4 includes an argon exhaust pipe 41 respectively connected to the rear side of the first airbag 31 and the second airbag 32 (the first airbag 31 and the second airbag 32 are respectively provided with a first interface 411 and a second interface 421 connected to the argon exhaust pipe 41); the argon exhaust pipe 41 is integrally formed with an argon gas passage 42 with a Y-shaped structure; the air inlet end of the vent joint 5 is installed and connected to the argon gas passage 42, and the air outlet end of the vent joint 5 is installed and connected to the central part of the rear side wall of the inner argon chamber 2.

[0086] Example 4

[0087] like Figure 1-7 As shown, based on the structure of Example 3, the vent connector 5 of this embodiment includes a connector housing 51, and an inner baffle 511 is integrally formed in the connector housing 51, and the inner baffle 511 divides the shell cavity of the housing into an upper cavity and a lower cavity. A spring gasket structure is arranged in 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 is provided with an air inlet structure, which is connected to the argon gas pipe 42 (i.e., the argon gas enters the airbag mechanism 3 and then enters the venting joint 5 from the argon gas pipe 42). At the same time, the air outlet of the second chamber B is connected to the inner argon chamber 2 (specifically, according to the existing method, the air outlet of the second chamber B can be connected to the inner argon chamber 2 by connecting to the upper hose to cooperate with the movement of the inner argon chamber 2).

[0089] The above-mentioned spring gasket structure includes a sealing rubber ring 52 located in the lower cavity, through which the first chamber A and the second chamber B are opened and connected, and sealed after closing; a gasket bracket structure 50 matched with the sealing rubber ring 52 is fixedly connected in the joint shell 51, and the first chamber A and the second chamber B are sealed by the sealing rubber ring 52 and the gasket bracket structure 50; the top of the sealing rubber ring 52 is fixedly connected to a push rod 53 slidably connected to the inner baffle 511, and the top of the push rod 53 is fixedly connected to a gasket 54 located in the upper cavity, and the top of the gasket 54 is fixedly connected to an elastic rubber layer 55, and the top of the elastic rubber layer 55 is installed with a spring lower gasket 56; the top of the spring lower gasket 56 is fixedly connected to a reset spring 59, and the top of the reset spring 59 is fixedly connected to a spring upper gasket 57; a pressure-resistant cone head 58 that resists the top position of the spring upper gasket 57 is fixedly connected in the joint shell 51.

[0090] During operation, when the air pressure in the airbag mechanism 3 reaches the threshold value (i.e., the pressure value required for the sealing rubber ring 52 to lift up), the sealing rubber ring 52 pushes up the push rod 53, the sealing rubber ring 52 is separated from the gasket support structure 50, the first chamber A and the second chamber B are opened and connected, and the argon gas enters the second chamber B from the first chamber A. When the air pressure in the airbag mechanism 3 drops to the threshold value, under the action of the elastic force of the reset spring 59, the sealing rubber ring 52 is reset to the gasket support structure 50, and the first chamber A and the second chamber B are closed and sealed.

[0091] The above-mentioned gasket bracket structure 50 includes an oblique bracket portion 501 integrally formed on the inner wall of the joint shell 51 and a vertical bracket portion 502 vertically arranged. The bottom of the sealing rubber ring 52 is supported on the oblique bracket portion 501 and the vertical bracket portion 502. Under normal circumstances, due to the elastic pressure of the reset spring 59, the seal is maintained, that is, the first chamber A and the second chamber B are in a closed state.

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

[0093] During the working process, this ingenious design can first ensure that the argon pressure in the first airbag 31 and the second airbag 32 maintains sufficient pressure, thereby being able to push the inner argon chamber 2. Secondly, when the argon pressure exceeds a certain value, the argon is discharged into the inner argon chamber 2 to ensure that the inner argon chamber 2 can be fully filled with a certain concentration of argon, that is, to maintain a high argon concentration in the formed argon atmosphere, thereby 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 and the left side wall of the inner argon chamber 2 are connected to the side wall of the outer argon chamber 1 through a plurality of spring return structures 6 respectively.

[0096] Specifically, two spring return structures 6 are arranged front and back between the left side wall of the inner argon chamber 2 and the left side wall of the outer argon chamber 1. Two spring return structures 6 are arranged front and back between the bottom of the inner argon chamber 2 and the top of the outer argon chamber 1.

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

[0098] During the working process, when the inner argon chamber 2 is pushed up and moves to the right, the spring 62 has not only elastic force but also a certain degree of freedom, that is, the spring 62 can be deformed during the stretching process, and the deformation includes deformation in the vertical direction of the spring 62 and deformation in the bending direction of the spring 62. In this way, when the welding is completed during the working process, the spring 62 is reset under the elastic restoring force.

[0099] Example 6

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

[0101] During the working process, the back of the welding workpiece is observed by the industrial camera 7, and the welding trajectory can be observed 360 degrees without blind spots through the industrial camera 7, so that the back of the workpiece during welding can be monitored in real time by the industrial camera 7 during the welding process. In this way, the visualization degree of the welding process is greatly improved, and welding can be achieved in a visual manner during the welding operation, which not only improves the welding efficiency, but also realizes real-time monitoring of welding.

[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 visualized double-layer argon gas back protection device in this embodiment includes the following steps:

[0104] S1, initially attaching the outer argon chamber 1 to the welding workpiece;

[0105] S2, pumping argon gas into the airbag mechanism 3, and under the upward push of the first airbag 31, the inner argon chamber 2 is pushed up to a height corresponding to the back side of the welding workpiece; under the side push of the second airbag 32, the right side of the inner argon chamber 2 moves to fit on the welding workpiece and forms a sealing area with the back side of the welding workpiece;

[0106] S3, when the air pressure in the airbag mechanism 3 reaches the ventilation pressure threshold of the ventilation joint 5, the ventilation joint 5 is opened, 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 gas chamber 2 enters the outer argon gas chamber 1 from the through-hole structure, forming a double-layer argon gas atmosphere;

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

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

[0110] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A visual double-layer argon back protection device shared by humans and machines, characterized in that: It includes an argon chamber mechanism, wherein the argon chamber mechanism includes an outer argon chamber and an inner argon chamber arranged in the outer argon chamber; The argon chamber mechanism also includes an airbag mechanism for pushing the inner argon chamber to move to fit on the welding workpiece; The airbag mechanism comprises a first airbag arranged at the bottom of the inner argon gas chamber for lifting the inner argon gas chamber and a second airbag supported at the side of the inner argon gas chamber for sideways pushing and moving the inner argon gas chamber; The airbag mechanism also includes an argon inlet pipe structure for pumping argon gas, and the airbag mechanism is connected to an argon exhaust pipe structure for pumping the argon gas in the airbag mechanism into the inner argon chamber; The argon exhaust pipe structure is provided with a venting joint, and when the air pressure in the airbag mechanism reaches a threshold value, the venting joint opens, and argon enters the inner argon chamber; 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 mounted on the inner side wall of the outer argon chamber through a plurality of spring reset structures, and the inner argon chamber is reset through the spring reset structures; A monitoring mechanism is installed in the inner argon chamber, and the back side of the welding workpiece is monitored in real time during the welding process through the monitoring mechanism.

2. The human-machine shared visualized double-layer argon back protection device according to claim 1 is characterized in that: The top and right side of the outer argon chamber and the inner argon chamber are open structures.

3. The human-machine shared visualized double-layer argon back protection device according to claim 1, characterized in that: The through hole structure comprises a plurality of through holes opened on the rear side wall of the inner argon chamber.

4. The human-machine shared visualized double-layer argon back protection device according to claim 1, characterized in that: The argon inlet pipe structure includes an argon inlet pipe that passes 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 shunt pipe, and the two outlet ends of the argon shunt pipe are respectively connected to the first airbag and the second airbag.

5. The human-machine shared visualized double-layer argon back protection device according to claim 1, characterized in that: The argon exhaust pipe structure comprises argon exhaust pipes respectively connected to the rear side of the first airbag and the second airbag; The argon exhaust pipe is integrally formed with an argon passing pipe of a Y-shaped structure; The air inlet end of the vent joint is installed and connected to the argon gas pipe, and the air outlet end of the vent joint is installed and connected to the rear side wall of the inner argon gas chamber.

6. The human-machine shared visualized double-layer argon back protection device according to claim 5, characterized in that: The vent joint comprises a joint shell, an inner baffle is integrally formed in the joint shell, and the inner baffle divides the shell cavity of the shell into an upper cavity and a lower cavity; A spring washer structure is provided in the joint housing; The lower cavity is divided into a first chamber and a second chamber, the first chamber is provided with an air inlet structure, and the air inlet structure is connected to the argon gas pipe; The gas outlet of the second chamber is connected to the inner argon chamber.

7. The human-machine shared visualized double-layer argon back protection device according to claim 6, characterized in that: The spring gasket structure includes a sealing rubber ring located in the lower cavity, through which the first cavity and the second cavity are opened and connected, and closed and sealed; A gasket support structure matched with the sealing rubber ring is fixedly connected in the joint housing, and the first chamber cavity and the second chamber cavity are sealed by the sealing rubber ring and the gasket support structure; The top of the sealing rubber ring is fixedly connected to a push rod slidably connected to the inner baffle part, 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, and a spring lower gasket is installed on the top of the elastic rubber layer; The top of the spring lower gasket is fixedly connected with a return spring, and the top of the return spring is fixedly connected with a spring upper gasket; A compression-resistant cone head is fixedly connected in the joint housing and contacts the top position of the gasket on the spring; When the air pressure in the airbag mechanism reaches the threshold value, the sealing rubber ring pushes up the push rod, the sealing rubber ring separates from the gasket support structure, the first chamber and the second chamber are opened and connected, and argon gas enters the second chamber from the first chamber; when the air pressure in the airbag mechanism drops to the threshold value, under the action of the elastic force of the reset spring, the sealing rubber ring resets to the gasket support structure, and the first chamber and the second chamber are closed and sealed.

8. The human-machine shared visualized double-layer argon back protection device according to claim 1, characterized in that: The bottom and the left side wall of the inner argon chamber are connected to the side wall of the outer argon chamber through a plurality of spring return structures; The spring return structure comprises spring seats which are respectively fixedly connected to the inner argon chamber and the outer argon chamber, and springs are fixedly connected between the spring seats.

9. The human-machine shared visualized double-layer argon back protection device according to claim 1, characterized in that: The monitoring mechanism includes an industrial camera arranged in the inner argon chamber, and the monitoring mechanism also includes a touch display screen matched with the industrial camera.

10. The welding method of the human-machine shared visualized double-layer argon back protection device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Initially attach the outer argon chamber to the welding workpiece; S2, pumping argon gas into the airbag mechanism, and under the upward push of the first airbag, the inner argon chamber is pushed up to a height corresponding to the back side of the welding workpiece; under the side push of the second airbag, the right side of the inner argon chamber moves to fit on the welding workpiece and forms a sealing area with the back side of the welding workpiece; S3, when the air pressure in the airbag mechanism reaches the ventilation pressure threshold of the ventilation joint, the ventilation joint is opened, and argon gas enters the inner argon chamber to form an argon atmosphere; At the same time, the argon gas in the inner argon gas chamber enters the outer argon gas chamber through the through-hole structure, forming a double-layer argon gas atmosphere; S4. During the welding process, the back of the welding workpiece is observed through the monitoring system, and the welding trajectory can be observed 360 degrees without blind spots through the monitoring system; S5. After welding is completed, during the process of evacuating the argon gas in the first airbag and the second airbag, the argon gas chamber in the spring reset structure is reset.

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