Inert gas automatic restraint type high-temperature alloy welding device

Abstract

The invention discloses an inert gas automatic restraint type high-temperature alloy welding device, and relates to the technical field of high-temperature alloy welding, the inert gas automatic restraint type high-temperature alloy welding device comprises a welding nozzle component and a gas restraint component, the lower end of the welding nozzle component is sleeved with an inert gas output end component, and the bottom end of the inert gas output end component is sleeved with the gas restraint component. According to the inert gas automatic restraint type high-temperature alloy welding device, through ingenious combination of a plurality of components, automatic restraint and accurate output of inert gas in the high-temperature alloy welding process are achieved; the inert gas output end component is responsible for evenly and stably conveying inert gas to a welding area, and oxidation and nitridation of high-temperature alloy in the welding process are effectively prevented. The gas constraint component further improves the welding precision and efficiency by accurately controlling the flowing path and range of the inert gas. And the first combined bolt and the second fixed bolt are used for firmly connecting all the parts together, so that the stability and the reliability of the whole device are ensured.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of high-temperature alloy welding, in particular to an inert gas automatic restraint type high-temperature alloy welding device. BACKGROUND

[0002] High-temperature alloy welding refers to the precision manufacturing technology of realizing metallurgical connection between nickel-based, cobalt-based or iron-based alloy materials serving at a high temperature of above 600 DEG C for a long time through a specific heat source and process. The core goal is to form a defect-free and high-performance welded joint under the premise of maintaining the high-temperature strength, oxidation resistance and organizational stability of the base material. The welding must be carried out in an inert gas protection (such as argon with a purity of greater than or equal to 99.99%) or vacuum environment, and the heat input and cooling rate must be strictly controlled.

[0003] The "inert gas automatic restraint type high-temperature alloy welding device" is not a standardized general term, but an engineering description of a special system integrating high-precision gas sealing, automatic control and high-temperature alloy welding process. Its essence is to design a closed-loop welding tool system to solve the core problems of insufficient gas protection, unstable heat field and uncontrollable deformation in high-temperature alloy welding.

[0004] The device is a multi-module collaborative automatic welding platform, and the core functions include: Inert gas automatic restraint: a programmable airtight clamp or a local fence structure is used to form a closed or semi-closed gas chamber around the weld, realize efficient retention and dynamic compensation of argon / helium, and improve the gas utilization rate by more than 40%; Automatic positioning and clamping: a servo-driven clamp is integrated to realize millimeter-level repeated positioning of the workpiece, and a thermal expansion compensation algorithm is used to suppress welding deformation; Intelligent gas regulation: based on real-time molten pool infrared monitoring and gas flow feedback, the protection gas flow rate (typical range: 15-30 L / min) and pressure (0.1-0.3 MPa) are dynamically adjusted to ensure the stability of the protection layer; Welding path self-adaptation: a laser or TIG welding head is linked to automatically adjust the welding gun posture and trajectory according to the workpiece surface, and is suitable for complex geometries such as turbine blades and combustion chambers The conventional inert gas protection welding device has the problem that the gas protection range is difficult to accurately control when welding high-temperature alloys. Since high-temperature alloy welding has very high requirements for gas protection, uneven distribution or inaccurate range of the protection gas can easily cause oxidation or nitriding in the welding area, seriously affecting the welding quality. SUMMARY

[0005] The purpose of the present application is to provide an inert gas automatic restraint type high-temperature alloy welding device to solve the problems raised in the background.

[0006] In order to achieve the above object, the present application provides the following technical scheme: an inert gas automatic restraint type high-temperature alloy welding device, comprising a welding nozzle component and a gas restraint component, the lower end of the welding nozzle component is sleeved and installed with an inert gas output end component, and the bottom end of the inert gas output end component is sleeved and installed with the gas restraint component, the gas restraint component comprises a gas-tight cover, a sealing sleeve, a sealing ring hoop and a fixing seat, the middle of the gas-tight cover is vertically installed with the sealing sleeve, the left and right ends of the sealing sleeve are symmetrically provided with the sealing ring hoop, and the top edge of the sealing sleeve is installed with the fixing seat.

[0007] Further, the welding nozzle component comprises a welding nozzle body, an external connection end, a clamping ring and a clamping circular seat, the top end of the welding nozzle body is provided with the external connection end, a group of clamping rings are arranged on the upper and lower sides of the outer side of the lower end of the welding nozzle body, and a group of clamping circular seats are also arranged on the upper and lower sides of the lower end surface of the welding nozzle body.

[0008] Further, the external connection end is used for connecting the welding nozzle body with an external welding device to provide necessary energy input for the welding process, the welding nozzle body and the clamping circular seat are arranged in an integrated structure, and the clamping circular seats are symmetrically arranged on the outer sides of the welding nozzle body.

[0009] Further, the inert gas output end component comprises a stabilizing sleeve, a support seat, an external gas valve, a gas valve pipe and a connecting circular seat, the left and right sides of the upper end of the stabilizing sleeve are symmetrically and horizontally provided with the support seat, the end of the support seat away from the stabilizing sleeve is vertically installed with the external gas valve, the bottom of the end of the support seat away from the stabilizing sleeve is vertically installed with the gas valve pipe, and the left and right sides of the gas valve pipe are symmetrically provided with the connecting circular seat.

[0010] Further, the stabilizing sleeve, the support seat and the connecting circular seat are arranged in an integrated structure, and the connecting circular seats are arranged in a ring array structure with the stabilizing sleeve as the center and are distributed in four groups.

[0011] Further, the clamping ring and the clamping circular seat are matched with the inner wall of the stabilizing sleeve, which is used for realizing the stable connection between the welding nozzle component and the inert gas output end component, and the gas valve pipe is made of high-temperature resistant material.

[0012] Further, a first group of combined bolts are symmetrically and horizontally screwed at the joint of the welding nozzle component and the inert gas output end component, a second fixing bolt is horizontally connected and installed at the joint of the inert gas output end component and the gas restraint component, and the second fixing bolt is arranged in a ring array structure with the gas restraint component as the center and is distributed in four groups.

[0013] Further, the first combination bolt horizontal screw is installed on the front and rear sides of the upper and lower ends of the stable sleeve and is in threaded connection with the clamping circular seat, and the second fixed bolt horizontal screw penetrates the upper end of the fixed seat and is in threaded connection with the clamping circular seat.

[0014] The application provides an inert gas automatic restraint type high-temperature alloy welding device, which has the following beneficial effects: 1、The application, through the structural arrangement of the gas restraint member, on the one hand, the combination design of the gas-tight cover and the sealing sleeve can form a closed gas protection chamber in the welding process, effectively ensures the efficient retention of inert gas in the welding area, prevents unnecessary gas from the outside from invading to cause weld oxidation, and reduces problems such as insufficient protection, unstable heat field, uncontrollable deformation and the like, and on the other hand, the synergistic effect of the sealing ring and the fixed seat enhances the connection sealing property between the gas restraint member and the inert gas output end member, avoids inert gas leakage, and guarantees the stability of the welding quality.

[0015] 2、The application, by virtue of the unique design of the welding nozzle member, the integrated structure of the welding nozzle body, the clamping ring and the clamping circular seat, and the reasonable arrangement of the external end, not only facilitates the connection with the external welding equipment to provide stable energy input for welding, but also realizes the stable assembly of the welding nozzle member and the inert gas output end member through the matching connection of the clamping ring and the clamping circular seat and the stable sleeve of the inert gas output end member, and ensures the relative position accuracy of each component in the welding process, which is conducive to improving the welding precision.

[0016] 3、The application, by virtue of the structural advantages of the inert gas output end member, wherein the integrated structure of the stable sleeve, the support seat and the clamping circular seat, and the reasonable layout of the external gas valve and the gas outlet valve pipe on the support seat, enables the inert gas to be smoothly input and output, and through the annular array arrangement of the clamping circular seat with the stable sleeve as the center, the stability of the structure and the uniformity of the gas distribution are enhanced; at the same time, the gas outlet valve pipe is made of high-temperature resistant material, which can adapt to the high-temperature environment during high-temperature alloy welding, ensure the normal delivery of inert gas, and provide reliable gas protection for welding.

[0017] 4、The application, through the arrangement of the first combination bolt and the second fixed bolt, the first combination bolt is horizontally screwed between the stable sleeve and the clamping circular seat, realizing the close connection of the welding nozzle member and the inert gas output end member; the second fixed bolt is arranged in an annular array structure with the gas restraint member as the center and is distributed in four groups, and is horizontally screwed through the fixed seat and connected with the clamping circular seat, ensuring the stable assembly of the inert gas output end member and the gas restraint member. This connection mode not only is convenient to install and disassemble, is convenient for equipment maintenance and overhaul, but also can withstand various stresses generated during welding, guarantees the overall structural stability of the device, thereby providing a stable and reliable working environment for high-temperature alloy welding, effectively improving the welding quality and efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a body shaft side view structure schematic diagram of an inert gas automatic restraint type high-temperature alloy welding device of the present application; Figure 2 It is a body split structure schematic diagram of an inert gas automatic restraint type high-temperature alloy welding device of the present application; Figure 3 It is a welding nozzle component three-dimensional structure schematic diagram of an inert gas automatic restraint type high-temperature alloy welding device of the present application; Figure 4 It is an inert gas output end component three-dimensional structure schematic diagram of an inert gas automatic restraint type high-temperature alloy welding device of the present application; Figure 5 It is a gas restraint component three-dimensional structure schematic diagram of an inert gas automatic restraint type high-temperature alloy welding device of the present application.

[0019] In the figure: 1, welding nozzle component; 101, welding nozzle main body; 102, external connection end; 103, clamping ring; 104, clamping round seat; 2, inert gas output end component; 201, stabilizing sleeve; 202, support seat; 203, external gas valve; 204, gas valve pipe; 205, connecting round seat; 3, gas restraint component; 301, gas-tight cover; 302, sealing sleeve; 303, sealing ring hoop; 304, fixed seat; 4, first combined bolt; 5, second fixed bolt. DETAILED DESCRIPTION

[0020] The embodiments of the present application will be further described below in conjunction with the drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0021] As Figures 1 to 5As shown, an inert gas automatic restraint type high-temperature alloy welding device includes a welding nozzle component 1 and a gas restraint component 3, and the lower end of the welding nozzle component 1 is sleeved and installed with an inert gas output end component 2, and the bottom end of the inert gas output end component 2 is sleeved and installed with the gas restraint component 3, and the gas restraint component 3 includes a gas-tight cover 301, a sealing sleeve 302, a sealing ring 303, and a fixed seat 304, the sealing sleeve 302 is vertically installed in the middle of the gas-tight cover 301, and the sealing ring 303 is symmetrically arranged at the left and right ends of the sealing sleeve 302, and the fixed seat 304 is installed at the top edge of the sealing sleeve 302, the welding nozzle component 1 includes a welding nozzle body 101, an external connection end 102, a clamping ring 103, and a clamping circular seat 104, the external connection end 102 is arranged at the top end of the welding nozzle body 101, a group of clamping rings 103 is arranged on the outer side of the lower end of the welding nozzle body 101, and a group of clamping circular seats 104 is arranged on the lower end surface of the welding nozzle body 101, the external connection end 102 is used to connect the welding nozzle body 101 to the external welding equipment to provide necessary energy input for the welding process, the welding nozzle body 101 and the clamping circular seat 104 are arranged in an integrated structure, and the clamping circular seat 104 is symmetrically arranged on the outer sides of the welding nozzle body 101, wherein the clamping ring 103 and the clamping circular seat 104 are matched with the inner wall of the stabilizing sleeve 201, in assembly, only the lower end of the welding nozzle component 1 is aligned with the upper end of the stabilizing sleeve 201 and inserted, the clamping ring 103 and the clamping circular seat 104 are smoothly embedded in the stabilizing sleeve 201 to achieve preliminary positioning, and the first combined bolt 4 is horizontally screwed on the front and back sides of the upper and lower ends of the stabilizing sleeve 201 and is screwed with the clamping circular seat 104 to further reinforce the connection between the welding nozzle component 1 and the inert gas output end component 2, ensuring that the two do not relatively displace during the welding process, and ensuring the stability of the welding.

[0022] For the connection between the inert gas output end component 2 and the gas restraint component 3, the second fixed bolt 5 is arranged in a ring array structure with the gas restraint component 3 as the center and is distributed with four groups, and is horizontally screwed through the upper end of the fixed seat 304 and is screwed with the adapter circular seat 205, which makes the connection between the two more stable. During the welding process, the gas restraint component 3 needs to withstand certain pressure and stress, and the four groups of second fixed bolts 5 can evenly disperse these forces, avoiding excessive local stress that causes loose or damage connection, and ensuring reliable operation of the entire device in high-temperature and high-pressure environment.

[0023] In actual use of the device for high-temperature alloy welding, first, the welding nozzle component 1 is connected with the external welding equipment through the external connection end 102, and the welding energy can be stably input. Then, the inert gas source is connected with the external gas valve 203, so that the inert gas can smoothly enter the stable sleeve 201, and then is output to the gas protection chamber formed by the gas restricting component 3 through the gas valve pipe 204. Since the gas valve pipe 204 is made of high-temperature resistant material, in the high-temperature environment generated by high-temperature alloy welding, the inert gas can still be normally transported, and reliable gas protection is provided for the welding area, so as to prevent the weld from being oxidized.

[0024] In the welding process, the closed gas protection chamber formed by the airtight cover 301 of the gas restricting component 3 and the sealing sleeve 302 can effectively retain the inert gas and reduce gas leakage. At the same time, the cooperation of the sealing ring 303 and the fixing seat 304 further enhances the connection sealing between the gas restricting component 3 and the inert gas output end component 2, so as to ensure that the inert gas will not leak from the connection, and the stability of the welding quality is ensured. Moreover, based on the real-time molten pool infrared monitoring and gas flow feedback, the intelligent gas control system can dynamically adjust the protection gas flow rate and pressure, so that the protection layer always remains stable, and good conditions are created for welding.

[0025] As Figures 1 to 5As shown, the inert gas output end member 2 comprises a stabilizing sleeve 201, a support seat 202, an external gas valve 203, a gas outlet valve pipe 204 and a connecting circular seat 205, the support seat 202 is symmetrically arranged horizontally on the left and right sides of the upper end of the stabilizing sleeve 201, and the external gas valve 203 is vertically installed on the end of the support seat 202 away from the stabilizing sleeve 201, and the gas outlet valve pipe 204 is vertically installed on the bottom of the end of the support seat 202 away from the stabilizing sleeve 201, and the connecting circular seat 205 is symmetrically arranged on the left and right sides of the gas outlet valve pipe 204, the stabilizing sleeve 201, the support seat 202 and the connecting circular seat 205 are arranged in an integral structure, and the connecting circular seat 205 is arranged in an annular array structure with the stabilizing sleeve 201 as the center and is distributed in four groups, the clamping ring 103 and the clamping circular seat 104 are matched with the inner wall of the stabilizing sleeve 201, for realizing the stable connection between the welding nozzle member 1 and the inert gas output end member 2, the gas outlet valve pipe 204 is made of high-temperature resistant material, wherein the integral structure of the stabilizing sleeve 201, the support seat 202 and the connecting circular seat 205 enhances the overall strength and stability of the inert gas output end member 2. During the welding process, it can withstand certain external force impact and vibration, and ensure the integrity of the structure. The four groups of connecting circular seats 205 arranged in an annular array structure make the connection with the gas restraining member 3 more uniform in stress, improving the reliability of the connection. The high-temperature resistant material used for the gas outlet valve pipe 204 is not easy to deform and damage in a high-temperature environment, ensuring that the inert gas can be continuously and stably output to the gas protection chamber, providing a reliable gas protection barrier for welding, effectively preventing the weld from being oxidized at high temperature, and ensuring the welding quality.

[0026] As Figures 1 to 5As shown, the connection between the welding nozzle component 1 and the inert gas output end component 2 is symmetrically and horizontally threaded with first combination bolts 4 at both ends. The connection between the inert gas output end component 2 and the gas confinement component 3 is horizontally connected with second fixing bolts 5. The second fixing bolts 5 are arranged in a ring array structure with the gas confinement component 3 as the center and are distributed in four groups. The first combination bolts 4 are horizontally threaded on the front and rear sides of the upper and lower ends of the stabilizing sleeve 201 and are threadedly connected to the snap-fit ​​round seat 104. The second fixing bolts 5 are horizontally threaded through the upper end of the fixing seat 304 and are threadedly connected to the connecting round seat 205. The threaded connection method of the first combination bolts 4 and the second fixing bolts 5 not only makes installation and disassembly very convenient, but also facilitates quick replacement and repair of components when the equipment malfunctions or needs maintenance. Moreover, this connection method can provide a stable connection effect. During the welding process, the device is subjected to various factors such as high temperature, pressure, and vibration generated during welding. The first combination bolt 4 and the second fixing bolt 5 can withstand these stresses, ensuring that the relative positions of the welding nozzle component 1, the inert gas output end component 2, and the gas confinement component 3 are fixed and will not loosen or shift. This provides a stable and reliable working environment for high-temperature alloy welding, effectively improving welding quality and efficiency. At the same time, this standardized connection design also facilitates the flexible replacement and upgrading of device components according to different welding requirements, enhancing the device's versatility and adaptability.

[0027] In summary, as Figures 1 to 5 As shown, in this inert gas automatic confinement high-temperature alloy welding device, during use, the components are first accurately assembled according to the design requirements to ensure a tight and stable connection between the welding nozzle component 1, the inert gas output end component 2, and the gas confinement component 3. Next, the welding nozzle component 1 is reliably connected to external welding equipment via the external connection end 102 to ensure a stable and continuous input of welding energy. Then, connect the inert gas source tightly to the external gas valve 203, open the external gas valve 203, and let the inert gas flow smoothly into the stabilizing sleeve 201. During the gas flow process, check whether there is any gas leakage at each connection point. A simple test can be performed by applying soapy water to the connection point. If bubbles are found, it indicates that there is a leak, and the connection parts need to be tightened again in time. After confirming that there is no leakage, the inert gas will be output through the outlet valve pipe 204 into the gas protection chamber formed by the gas confinement component 3. At this time, the external welding equipment is started, and high-temperature alloy welding operation is performed through the welding nozzle body 101. During the welding process, the gas in the gas protection chamber should be closely observed to ensure that the inert gas maintains stable flow and pressure, which can be achieved by observing the pressure gauge connected to the gas outlet valve pipe 204; at the same time, the state of the welding pool is monitored in real time, and the welding parameters such as welding current and voltage are adjusted appropriately according to the welding situation to ensure the welding quality; When the welding work is completed, first close the external welding equipment and stop the input of welding energy, then close the external gas valve 203 and stop the supply of inert gas. After the device cools for a period of time, the gas restraining member 3, the inert gas output end member 2 and the welding nozzle member 1 are sequentially disassembled in the reverse order of assembly, and each part is cleaned and maintained for next use; When disassembling, only the first combined bolt 4 and the second fixed bolt 5 need to be rotated counterclockwise in sequence to separate them from the corresponding threaded connection parts. Since the first combined bolt 4 and the second fixed bolt 5 are connected by threads, the rotation operation is simple and convenient, and can ensure stable connection in normal working state and easy separation when disassembly is needed. After the first combined bolt 4 and the second fixed bolt 5 are completely separated, the welding nozzle member 1 is first gently lifted upward. Since the clamping ring 103 and the clamping circular seat 104 are designed to match the inner wall of the stabilizing sleeve 201, when lifted upward, the clamping ring 103 and the clamping circular seat 104 will smoothly come out of the stabilizing sleeve 201, realizing the separation of the welding nozzle member 1 and the inert gas output end member 2. Then, the inert gas output end member 2 and the gas restraining member 3 are disassembled. Since the second fixed bolt 5 has been separated, only the gas restraining member 3 needs to be held and pulled outward with a little force to completely separate the connecting part of the second fixed bolt 5 and the connecting part of the second fixed bolt 5, so that the gas restraining member 3 can be disassembled from the inert gas output end member 2. During disassembly, the action should be gentle to avoid damage to the parts. After disassembly, each part should be carefully wiped with a clean soft cloth or special cleaning tool to remove dust, slag and other impurities generated during welding. For some gaps or parts that are difficult to clean, a small brush or compressed air can be used for cleaning to ensure that the surface of each part is clean and dry. After cleaning, each part should be placed in a dry and well-ventilated place for proper storage to prevent the parts from being damp, rusty or damaged, so that the next use can maintain good performance.

[0028] Embodiments of the present application are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the application to the forms disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. Embodiments are chosen and described in order to best explain the principles of the application and its practical application, and to enable others skilled in the art to understand the application for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. An inert gas-confined high-temperature alloy welding device, comprising a welding nozzle component (1) and a gas confinement component (3), characterized in that: The lower end of the welding nozzle component (1) is fitted with an inert gas output end component (2), and the bottom end of the inert gas output end component (2) is fitted with a gas confinement component (3). The gas confinement component (3) includes an airtight cover (301), a sealing sleeve (302), a sealing ring (303), and a fixing seat (304). The sealing sleeve (302) is vertically installed in the middle of the airtight cover (301), and sealing rings (303) are symmetrically arranged at the left and right ends of the sealing sleeve (302). A fixing seat (304) is installed at the top edge of the sealing sleeve (302).

2. The inert gas automatic confinement type high-temperature alloy welding device according to claim 1, characterized in that, The welding nozzle component (1) includes a welding nozzle body (101), an outer end (102), a snap ring (103), and a snap ring seat (104). The top end of the welding nozzle body (101) is provided with an outer end (102), and a set of snap rings (103) are provided on the upper and lower outer sides of the lower end of the welding nozzle body (101). Furthermore, a set of snap ring seats (104) are provided on the upper and lower surfaces of the lower end of the welding nozzle body (101).

3. The inert gas automatic confinement type high-temperature alloy welding device according to claim 2, characterized in that, The external end (102) is used to connect the welding nozzle body (101) to external welding equipment to provide the necessary energy input for the welding process. The welding nozzle body (101) and the snap-fit ​​round seat (104) are integrated into one structure. The snap-fit ​​round seat (104) is symmetrically arranged on the outer sides of the welding nozzle body (101).

4. The inert gas automatic confinement type high-temperature alloy welding device according to claim 2, characterized in that, The inert gas output component (2) includes a stabilizing sleeve (201), a support base (202), an external gas valve (203), an outlet valve pipe (204), and a connecting round seat (205). The upper end of the stabilizing sleeve (201) is symmetrically and horizontally provided with support bases (202) on the left and right sides. The end of the support base (202) away from the stabilizing sleeve (201) is vertically installed with an external gas valve (203). The bottom of the end of the support base (202) away from the stabilizing sleeve (201) is vertically installed with an outlet valve pipe (204). The left and right sides of the outlet valve pipe (204) are symmetrically provided with connecting round seats (205).

5. The inert gas automatic confinement high-temperature alloy welding device according to claim 4, characterized in that, The stabilizing sleeve (201), the support base (202), and the connecting round base (205) are integrated into one structure, and the connecting round base (205) is arranged in a ring array structure with the stabilizing sleeve (201) as the center and has four groups distributed thereon.

6. The inert gas automatic confinement type high-temperature alloy welding device according to claim 4, characterized in that, The snap ring (103) and snap seat (104) are both matched with the inner wall of the stabilizing sleeve (201) to achieve a stable connection between the welding nozzle component (1) and the inert gas output end component (2). The gas outlet valve pipe (204) is made of high temperature resistant material.

7. The inert gas automatic confinement high-temperature alloy welding device according to claim 4, characterized in that, The welding nozzle component (1) and the inert gas output end component (2) are connected symmetrically at the top and bottom and horizontally threaded at the front and back. The inert gas output end component (2) and the gas constraint component (3) are connected horizontally with a second fixing bolt (5). The second fixing bolt (5) is arranged in a ring array structure with the gas constraint component (3) as the center and is distributed in four groups.

8. The inert gas automatic confinement high-temperature alloy welding device according to claim 7, characterized in that, The first combination bolt (4) is horizontally threaded and installed on the front and rear sides of the upper and lower ends of the stabilizing sleeve (201) and is threadedly connected to the snap-fit ​​round seat (104).

9. The inert gas automatic confinement type high-temperature alloy welding device according to claim 8, characterized in that, The second fixing bolt (5) has a horizontal thread that passes through the upper end of the fixing seat (304) and is threadedly connected to the connecting round seat (205).

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