A gas distribution mechanism for a gas shielded welding machine

Abstract

This utility model provides a gas distribution mechanism for a gas shielded welding machine, relating to the technical field of gas distribution equipment. It includes a machine base, a support column fixed to the top of the machine base, a machine platform fixed to the top of the support column, a rotating seat rotatably connected to the top of the machine base, a protective column fixed to the top of the rotating seat, a rotating shaft rotatably connected to the bottom of the rotating seat rotatably, and a rotating shaft rotatably connected to the bottom of the machine base. A rotating shaft 2 rotatably connects to the bottom of the machine base, a gear 2 fixed to the bottom end of the rotating shaft 2, and a gear 1 fixed to the bottom end of the rotating shaft 1. The surfaces of gear 1 and gear 2 are fully meshed. Gear 2 is driven to rotate by a motor 1 fixed to the top of the machine base. A central clamping mechanism is provided at the top of the protective column. The central clamping mechanism includes a clamp seat, a sliding seat fixed to the inner wall of the clamp seat, an array of sliding grooves on the inner wall of the sliding seat, a gripper seat slidably connected to the inner wall of the sliding groove, a gripper body fixed to one side of the gripper seat, and a drive shaft fixed to the top of the gripper seat.

Description

Technical Field

[0001] This utility model relates to the field of gas distribution equipment technology, and in particular to a gas distribution mechanism for a gas shielded welding machine. Background Technology

[0002] Gas shielded welding (GSW) machines are widely used welding equipment. They use gas to protect the molten pool and utilize the heat of an electric arc to melt the metal for welding. The working principle involves feeding the welding wire into the welding area through a contact nozzle while simultaneously spraying a protective gas, such as carbon dioxide or argon, from the nozzle to isolate the molten pool from air and prevent oxidation. GSW machines offer advantages such as high welding speed, deep penetration, and flexible operation. They are suitable for welding various metal materials, such as carbon steel and stainless steel. GSW machines are widely used in industries such as machinery manufacturing, automobile manufacturing, and steel structure construction, effectively improving welding quality and production efficiency. They are an indispensable welding tool in modern industrial production.

[0003] In the existing technology, most gas mixing mechanisms of gas shielded welding machines lack a structure that rotates to ensure uniform gas mixing. Typically, gas mixing relies mainly on simple pipe connections and static gas mixers. While this design can achieve basic gas mixing, it has certain limitations in terms of mixing uniformity. Especially when multiple gases are used in the welding process and their proportions change frequently, static mixing can lead to uneven distribution of gas components, thus affecting the stability and consistency of the welding effect. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a gas distribution mechanism for a gas shielded welding machine.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a gas distribution mechanism for a gas shielded welding machine, comprising a machine base, a support column fixed to the top of the machine base, a machine stand fixed to the top of the support column, a rotating seat rotatably connected to the top of the machine base, a protective column fixed to the top of the rotating seat, a rotating shaft rotatably connected to the bottom of the rotating seat rotatably, the rotating shaft rotatably connected to the bottom of the machine base, a rotating shaft rotatably connected to the bottom of the machine base, a gear 2 fixed to the bottom end of the rotating shaft 2, and a gear 1 fixed to the bottom end of the rotating shaft 1, the surfaces of the gear 1 and gear 2 being fully meshed, the gear 2 being driven to rotate by a motor 1, the motor 1 being fixed to the top of the machine base, and a central clamping mechanism provided at the top of the protective column.

[0006] Preferably, the centering clamp mechanism includes a clamp base, a sliding seat fixed to the inner wall of the clamp base, an array of sliding grooves on the inner wall of the sliding seat, a gripper seat slidably connected to the inner wall of the sliding groove, a gripper body fixed to one side of the gripper seat, a drive shaft fixed to the top of the gripper seat, a rotating seat two rotatably connected to the top of the sliding seat, a sliding groove two extending from the top to the bottom of the rotating seat two, the drive shaft being located on the inner wall of the sliding groove two, and the rotating seat two being driven to rotate by an anti-rotation drive device. In existing technologies, most gas shielded welding machines lack a centering clamp structure in their mixing mechanism. This results in uneven gas distribution within the container or pipeline during gas mixing. Due to the lack of a centering clamp for fixation and guidance, the gas is prone to shifting or localized accumulation during rotation or flow, affecting the stability of the mixing effect. This drawback is particularly pronounced when handling mixtures of multiple gases or significant variations in gas flow rate, leading to inaccurate gas composition ratios and ultimately impacting the stability and consistency of welding quality. To address this issue, this invention employs a centering clamp structure. An anti-rotation drive device rotates the rotating seat two, and a groove on the rotating seat two guides the gripper seat along the groove within the sliding seat. With each movement, the gripper seat opens or closes the gripper body, thereby clamping and fixing the gas container or other components. This significantly improves the uniformity and stability of gas mixing. By equipping it with a centrally located clamping structure, it can effectively fix and guide the gas container or pipeline, preventing gas from shifting or accumulating locally during rotation or flow. This ensures that the gas components are evenly distributed during mixing, especially when mixing multiple gases or when the gas flow rate varies greatly. It can guarantee the accuracy of the mixed gas component ratio, thereby improving the stability and consistency of welding quality, reducing welding defects, enhancing the strength and corrosion resistance of the weld, and ultimately meeting the requirements of high-precision welding processes, thus improving the overall performance and reliability of the gas shielded welding machine.

[0007] Preferably, the anti-rotation drive device includes a worm gear fixed to the surface of the rotating seat. A support seat is fixed to the top of the fixture seat, and a worm is rotatably connected to one side of the support seat. The surface of the worm is fully engaged with the surface of the worm gear. The worm is driven to rotate by a second motor, which is fixed to the top of the fixture seat. In the prior art, most rotation drive structures of gas shielded welding machines lack anti-rotation functionality. This leads to unexpected rotation of the drive components due to external forces or inertia during gas mixing or other precisely controlled rotation processes. This rotation not only interferes with normal rotation operation but also causes uneven gas mixing, imbalanced mixing ratios, and even damage to the internal structure of the equipment. This drawback is particularly prominent in complex welding processes requiring precise control of rotation angle and speed, severely affecting the stability and consistency of welding quality and reducing the reliability and service life of the equipment. To address this problem, this invention employs an anti-rotation drive structure, with a second motor driving the worm to rotate. Because the worm and worm wheel are fully meshed, the worm wheel drives the rotating seat to rotate. The worm gear transmission has a self-locking characteristic, meaning that during normal operation, the worm can drive the worm wheel to rotate, but the worm wheel cannot drive the worm in the opposite direction. This effectively prevents the rotating seat from unexpectedly rotating due to external forces or inertia, thus significantly improving the stability and reliability of the equipment. By introducing anti-rotation design, such as using a worm gear transmission or other self-locking mechanism, it is possible to effectively prevent the drive components from unexpectedly rotating due to external forces or inertia. This not only ensures the uniformity and accuracy of the gas mixing process and avoids mixing ratio imbalance, but also protects the internal structure of the equipment from damage.

[0008] Preferably, a centering calibration component is fixed to the bottom of the inner wall of the protective column, and a centering calibration groove is formed on the top of the centering calibration component. The centering calibration component and the centering calibration groove at the bottom of the inner wall of the protective column effectively ensure the precise positioning and centered placement of the gas container or other components within the protective column. This design avoids problems such as uneven gas distribution or insufficient mixing caused by component misalignment, further improving the uniformity and stability of gas mixing.

[0009] Preferably, an outer protective cover is fixed to the top of the machine base. Fixing an outer protective cover to the top of the machine base can effectively improve the safety and protective performance of the gas distribution mechanism of the gas shielded welding machine. The outer protective cover can prevent external dust and impurities from entering the internal mechanical structure, reducing the risk of failure caused by foreign object interference. At the same time, it can also protect the operator from accidental injury from high-speed rotating parts, reducing operational risks.

[0010] Preferably, the gripper body has anti-slip textures on one side, and the anti-slip textures are arranged in an array. The arrayed anti-slip textures on one side of the gripper body significantly increase the friction between the gripper and the clamped component, thereby enhancing the stability and reliability of the clamping. This design effectively prevents the clamped component from loosening or slipping due to vibration or rotation during gas mixing, ensuring that the gas container or pipeline maintains precise positioning and fixation throughout the mixing process.

[0011] Preferably, the diameter of the second gear is larger than that of the first gear. Designing the diameter of the second gear to be larger than that of the first gear can achieve the effects of speed reduction and torque increase. This design allows the high speed of the first motor to be converted into the low speed of the rotating seat after passing through the gear transmission, while increasing the output torque, thereby ensuring that the rotating seat can rotate stably and powerfully during the gas mixing process.

[0012] Beneficial effects:

[0013] 1. In existing technologies, most gas mixing mechanisms in gas shielded welding machines lack a rotating structure to ensure uniform gas mixing. Typically, gas mixing relies on simple pipe connections and static gas mixers. While this design achieves basic gas mixing, it has limitations in terms of mixing uniformity. This is especially true when multiple gases are used in the welding process with frequent changes in their proportions. Static mixing leads to uneven gas composition distribution, affecting the stability and consistency of the welding results. To address this issue, this invention employs a rotating and shaking mixing structure.

[0014] 2. In existing technologies, most gas shielded welding machines lack a central clamping structure in their mixing mechanism. This results in uneven gas distribution within the container or pipeline during gas mixing. Due to the lack of a central clamp for fixation and guidance, gas is prone to shifting or localized accumulation during rotation or flow, affecting the stability of the mixing effect. This drawback is particularly pronounced when handling mixtures of multiple gases or significant variations in gas flow rate, leading to inaccurate gas composition ratios and ultimately impacting the stability and consistency of welding quality. To address this issue, this invention employs a central clamping structure, significantly improving the uniformity and stability of gas mixing. By equipping the gas container or pipeline with the central clamping structure, it effectively fixes and guides the gas, preventing gas shifting and localized accumulation during rotation or flow. This ensures uniform gas composition distribution during mixing, especially in cases of mixing multiple gases or significant variations in gas flow rate, guaranteeing accurate gas composition ratios. This improves the stability and consistency of welding quality, reduces welding defects, enhances weld strength and corrosion resistance, ultimately meeting the requirements of high-precision welding processes and improving the overall performance and reliability of the gas shielded welding machine.

[0015] 3. In existing technologies, most gas shielded welding machines lack anti-rotation drive structures. This leads to unexpected rotation of the drive components due to external forces or inertia during gas mixing or other precisely controlled rotation processes. Such rotation not only interferes with normal operation but also causes uneven gas mixing, imbalanced mixing ratios, and even damage to the internal structure of the equipment. This drawback is particularly pronounced in complex welding processes requiring precise control of rotation angle and speed, severely affecting the stability and consistency of welding quality and reducing the reliability and service life of the equipment. To address this issue, this invention employs an anti-rotation drive structure, significantly improving the stability and reliability of the equipment. By introducing an anti-rotation design, such as using a worm gear drive or other self-locking mechanism, unexpected rotation of the drive components due to external forces or inertia can be effectively prevented. This not only ensures the uniformity and precision of the gas mixing process and avoids imbalanced mixing ratios but also protects the internal structure of the equipment from damage. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a three-dimensional structural diagram of the rotating and oscillating structure of this utility model;

[0018] Figure 3 This is an exploded view of the rotating and stabilizing structure of this utility model;

[0019] Figure 4This is a three-dimensional structural diagram of the anti-rotation drive device of this utility model;

[0020] Figure 5 This is an exploded view of the anti-rotation drive device of this utility model.

[0021] Legend:

[0022] 1. Machine base; 101. Support column; 102. Machine base; 103. Rotating seat one; 104. Protective column; 106. Rotating shaft one; 107. Gear one; 108. Rotating shaft two; 109. Gear two; 110. Motor one; 2. Fixture seat; 201. Sliding seat; 202. Slide groove one; 203. Gripper seat; 204. Gripper body; 205. Drive shaft; 206. Rotating seat two; 207. Slide groove two; 3. Worm gear; 301. Support seat; 302. Worm; 303. Motor two; 4. Centering calibration component; 401. Centering calibration slot; 5. Outer protective cover. Detailed Implementation

[0023] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.

[0024] The specific embodiments of this utility model are described below with reference to the accompanying drawings. Specific implementation examples:

[0026] Reference Figure 1-5A gas distribution mechanism for a gas shielded welding machine includes a machine base 1, a support column 101 fixed to the top of the machine base 1, a machine platform 102 fixed to the top of the support column 101, a rotating seat 103 rotatably connected to the top of the machine platform 102, a protective column 104 fixed to the top of the rotating seat 103, a rotating shaft 106 fixed to the bottom of the rotating seat 103, the rotating shaft 106 rotatably connected to the bottom of the machine platform 102, a rotating shaft 2 108 rotatably connected to the bottom of the machine platform 102, a gear 2 109 fixed to the bottom end of the rotating shaft 2 108, a gear 107 fixed to the bottom end of the rotating shaft 106, the surface of the gear 107 fully meshing with the surface of the gear 2 109, the gear 2 109 being driven to rotate by a motor 110 fixed to the top of the machine base 1, and a central clamping mechanism provided on the top of the protective column 104. In existing technologies, most gas mixing mechanisms in gas shielded welding machines lack a structure that allows for uniform gas mixing through rotation. Typically, gas mixing relies on simple pipe connections and static gas mixers. While this design achieves basic gas mixing, it has limitations in terms of mixing uniformity. This is especially true when multiple gases are used in the welding process with frequent changes in their proportions; static mixing leads to uneven gas composition distribution, affecting the stability and consistency of the welding results. To address this issue, this invention employs a rotating and oscillating structure. Motor 110 drives gear 109 to rotate. Since gear 109 is fully engaged with gear 107, gear 107 rotates accordingly, thereby driving the rotating shaft 106 and the top rotating seat 103 to rotate. The rotation of the rotating seat 103 ensures that the gas within the protective column 104 is fully mixed under centrifugal force and rotational stirring, achieving uniform gas distribution. Compared to traditional static mixing, this dynamic mixing method more effectively improves the uniformity of gas mixing, providing a more stable protective gas for the gas shielded welding machine and enhancing welding quality.

[0027] The centering clamp mechanism includes a clamp base 2, a sliding seat 201 fixed on the inner wall of the clamp base 2, a first sliding groove 202 arrayed on the inner wall of the sliding seat 201, a gripper seat 203 slidably connected to the inner wall of the first sliding groove 202, a gripper body 204 fixed on one side of the gripper seat 203, a drive shaft 205 fixed on the top of the gripper seat 203, a second rotating seat 206 rotatably connected to the top of the sliding seat 201, a second sliding groove 207 extending from the top to the bottom of the second rotating seat 206, the drive shaft 205 located on the inner wall of the second sliding groove 207, and the second rotating seat 206 being driven to rotate by an anti-rotation drive device. In existing technologies, most gas shielded welding machines lack a central clamping structure in their mixing mechanism. This results in uneven gas distribution within the container or pipeline during gas mixing. Due to the lack of a central clamping fixture for fixation and guidance, the gas is prone to shifting or localized accumulation during rotation or flow, thus affecting the stability of the mixing effect. This drawback is particularly pronounced when handling the mixing of multiple gases or when there are significant variations in gas flow rate. It can lead to inaccurate composition ratios of the mixed gases, ultimately affecting the stability and consistency of welding quality. To address this issue, this invention employs a central clamping structure. An anti-rotation drive device drives the rotating seat 206 to rotate. The sliding groove 207 on the rotating seat 206 guides the gripper seat 203 to move along the sliding groove 202 within the sliding seat 201. The gripper seat 203 drives the gripper body 204 to open or close, thereby achieving the clamping and fixation of the gas container or other components.

[0028] The anti-rotation drive device includes a worm gear 3, which is fixed to the surface of the rotating seat 206. A support seat 301 is fixed to the top of the clamp seat 2. A worm 302 is rotatably connected to one side of the support seat 301. The surface of the worm 302 is fully engaged with the surface of the worm gear 3. The worm 302 is driven to rotate by a motor 303, which is fixed to the top of the clamp seat 2. In existing technologies, most rotation drive structures of gas shielded welding machines lack anti-rotation functions. This leads to unexpected rotation of the drive components due to external forces or inertia during gas mixing or other rotation processes requiring precise control. Such rotation not only interferes with normal rotation operation but also causes uneven gas mixing, imbalanced mixing ratios, and even damage to the internal structure of the equipment. This drawback is particularly prominent in complex welding processes that require precise control of rotation angle and speed, severely affecting the stability and consistency of welding quality and reducing the reliability and service life of the equipment. To address this problem, this utility model adopts an anti-rotation drive structure. Motor 2 303 drives worm 302 to rotate. Since worm 302 is fully engaged with worm wheel 3, worm wheel 3 drives rotating seat 206 to rotate. The worm wheel and worm gear transmission has a self-locking characteristic, meaning that during normal operation, the worm can drive the worm wheel to rotate, but the worm wheel cannot drive the worm in the opposite direction, thus effectively preventing unexpected rotation of rotating seat 206 due to external forces or inertia.

[0029] A centering calibration component 4 is fixed to the bottom of the inner wall of the protective column 104. A centering calibration groove 401 is formed on the top of the centering calibration component 4. This design effectively ensures the precise positioning and centered placement of the gas container or other components within the protective column. This avoids uneven gas distribution or insufficient mixing caused by component misalignment, further improving the uniformity and stability of gas mixing. An outer protective cover 5 is fixed to the top of the machine base 102. This outer protective cover 5 effectively enhances the safety and protective performance of the gas distribution mechanism of the gas shielded welding machine. The outer protective cover 5 prevents external dust and impurities from entering the internal mechanical structure, reducing the risk of malfunctions caused by foreign object interference. Simultaneously, it protects operators from accidental injury from high-speed rotating components, reducing operational risks. The gripper body 204 has anti-slip textures on one side, arranged in an array. This array of anti-slip textures significantly increases the friction between the gripper and the clamped part, thereby enhancing the stability and reliability of the clamping. This design effectively prevents the clamped part from loosening or slipping due to vibration or rotation during gas mixing, ensuring that the gas container or pipeline remains accurately positioned and fixed during the mixing process. The diameter of gear 2 109 is larger than that of gear 1 107. Designing the diameter of gear 2 109 to be larger than that of gear 1 107 can achieve the effects of speed reduction and torque increase. This design allows the high speed of motor 110 to be converted into the low speed of rotating seat 103 after gear transmission, while increasing the output torque, thereby ensuring that rotating seat 103 can rotate stably and powerfully during gas mixing.

[0030] The working principle of this utility model is as follows: Motor 110 drives gear 2 109 to rotate. Since gear 2 109 is fully meshed with gear 1 107, gear 1 107 rotates accordingly, which in turn drives rotating shaft 106 and the rotating seat 103 at the top to rotate. The rotation of rotating seat 103 causes the gas in the protective column 104 to be fully mixed under the action of centrifugal force and rotational stirring, thereby achieving uniform gas distribution. Compared with traditional static mixing, this dynamic mixing method can more effectively improve the uniformity of gas mixing, provide a more stable protective gas for the gas shielded welding machine, and improve welding quality. The rotating seat 2 20 is driven by an anti-rotation drive device. 6. Rotation: The second groove 207 on the rotating seat 206 guides the gripper seat 203 to move along the first groove 202 in the sliding seat 201. The gripper seat 203 drives the gripper body 204 to open or close, thereby achieving the clamping and fixing of gas containers or other components. The second motor 303 drives the worm 302 to rotate. Since the worm 302 is fully engaged with the worm wheel 3, the worm wheel 3 drives the rotating seat 206 to rotate. The worm wheel and worm transmission has a self-locking characteristic, that is, during normal operation, the worm can drive the worm wheel to rotate, but the worm wheel cannot drive the worm in the opposite direction, thereby effectively preventing the rotating seat 206 from unexpectedly rotating due to external force or inertia.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A gas blending mechanism of a gas shielded welding machine, comprising a machine base (1), characterized in that: The machine base (1) is fixed with a support column (101) at the top. The support column (101) is fixed with a machine base (102) at the top. The machine base (102) is rotatably connected with a rotating seat (103) at the top. The rotating seat (103) is fixed with a protective column (104) at the top. The rotating seat (103) is fixed with a rotating shaft (106) at the bottom. The rotating shaft (106) is rotatably connected to the bottom of the machine base (102). The unit is rotatably connected to a second rotating shaft (108), and a second gear (109) is fixed at the bottom end of the second rotating shaft (108). A first gear (107) is fixed at the bottom end of the first rotating shaft (106). The surface of the first gear (107) is fully meshed with the surface of the second gear (109). The second gear (109) is driven to rotate by a first motor (110). The first motor (110) is fixed to the top of the machine base (1). A central clamping mechanism is provided on the top of the protective column (104).

2. A gas mixing mechanism for a gas shielded welding machine according to claim 1, characterized in that: The centering clamp mechanism includes a clamp base (2), a sliding seat (201) is fixed on the inner wall of the clamp base (2), a first sliding groove (202) is arrayed on the inner wall of the sliding seat (201), a jaw seat (203) is slidably connected to the inner wall of the first sliding groove (202), a jaw body (204) is fixed on one side of the jaw seat (203), a drive shaft (205) is fixed on the top of the jaw seat (203), a second rotating seat (206) is rotatably connected to the top of the sliding seat (201), a second sliding groove (207) is formed through the second rotating seat (206) from the top to the bottom, the drive shaft (205) is located on the inner wall of the second sliding groove (207), and the second rotating seat (206) is driven to rotate by an anti-rotation drive device.

3. A gas mixing mechanism for a gas shielded welding machine according to claim 2, characterized in that: The anti-rotation drive device includes a worm gear (3), which is fixed to the surface of the rotating seat (206). A support seat (301) is fixed to the top of the clamp seat (2). A worm (302) is rotatably connected to one side of the support seat (301). The surface of the worm (302) is fully engaged with the surface of the worm gear (3). The worm (302) is driven to rotate by a motor (303), which is fixed to the top of the clamp seat (2).

4. A gas mixing mechanism for a gas shielded welding machine according to claim 1, characterized in that: The bottom of the inner wall of the protective column (104) is fixed with a centering calibration component (4), and the top of the centering calibration component (4) is provided with a centering calibration groove (401).

5. A gas mixing mechanism for a gas shielded welding machine according to claim 1, characterized in that: The machine base (102) is fixed with an outer protective cover (5) on top.

6. A gas mixing mechanism for a gas shielded welding machine according to claim 2, characterized in that: The gripper body (204) has anti-slip textures on one side, and the anti-slip textures are arranged in an array.

7. A gas mixing mechanism for a gas shielded welding machine according to claim 1, characterized in that: The diameter of gear two (109) is greater than that of gear one (107).

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