Carbon dioxide gas shielded welding machine with guide structure

By adjusting the welding torch angle through a guide structure and designing a protective shell, the problems of fixed welding head angle and release of harmful gases are solved, thereby improving welding quality and safety.

CN224254428UActive Publication Date: 2026-05-19JILIN WEITELAI MECHANICAL & ELECTRICAL EQUIPMENT MANUFACTURING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JILIN WEITELAI MECHANICAL & ELECTRICAL EQUIPMENT MANUFACTURING CO LTD
Filing Date
2025-06-17
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing CO2 shielded welding machines have a fixed welding head angle, which cannot be adjusted according to the welding position requirements, and the release of harmful gases during welding affects the health of operators.

Method used

A carbon dioxide gas shielded welding machine with a guiding structure was designed. The welding torch angle can be adjusted by rotating bolts and a transmission wheel system, and a protective shell can be equipped to close the material opening, thereby improving welding safety.

Benefits of technology

It enables flexible adjustment of the welding torch angle, improves weld quality, enhances operational safety during welding, and prevents the release of harmful gases.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a carbon dioxide gas shielded welding machine with a guide structure, and relates to the technical field of carbon dioxide gas shielded welding machines, the carbon dioxide gas shielded welding machine comprises a protective shell, the top end of the protective shell is rotatably connected with an observation cover, and one side face of the protective shell is provided with a clamping assembly for fixing the position of the observation cover. According to the carbon dioxide gas shielded welding machine with the guide structure, a first clamping rod can fix the position of a pipeline by rotating a bolt, then a first transmission wheel is rotated, a rotating rod is used for driving a worm to rotate on the surface of a worm gear, a connecting frame slides on the surface of a supporting frame, and the angle between the connecting frame and a connecting block can be adjusted; the welding gun is adjusted according to the angle needing to be welded, the positioning frame is pushed through the spring, the position of the observation cover can be fixed through cooperation between the positioning frame and the positioning block, the opening, for containing materials, of the protection shell can be closed when the welding gun works, and the safety of the surrounding environment when the welding machine works is improved.
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Description

Technical Field

[0001] This utility model relates to a carbon dioxide shielded welding machine, specifically a carbon dioxide gas shielded welding machine with a guiding structure, belonging to the technical field of carbon dioxide shielded welding machines. Background Technology

[0002] Carbon dioxide shielded welding, also known as carbon dioxide gas shielded arc welding, uses carbon dioxide as the shielding gas. It is mainly used for manual welding. It is simple to operate and suitable for automatic welding and omnidirectional welding. However, it has poor wind resistance and is suitable for indoor operations. Due to its low cost and the ease of production of carbon dioxide gas, it is widely used in enterprises of all sizes.

[0003] Chinese patent application publication number CN217832220U discloses a carbon dioxide shielded welding machine with a guiding device. This utility model improves the flatness of the weld by setting a welding torch guide rail and installing rotatable limiting strips at both ends of the welding torch guide rail, allowing the welding torch to slide on the welding torch guide rail. It also improves the welding quality of the welding torch.

[0004] Although the above-mentioned patented solution allows the welding torch to slide on the welding torch guide rail, the carbon dioxide shielded welding machine in the above-mentioned patent is not convenient to adjust the angle of the welding head according to the welding position requirements. The above-mentioned operator can make the welding torch move with the welding torch guide rail, and the angle of contact between the welding torch and the object to be welded is fixed. It is also not convenient to isolate the welding position. Harmful gases are released during welding, which has a certain impact on the operator's health.

[0005] Therefore, a carbon dioxide gas shielded welding machine with a guiding structure is proposed here. Utility Model Content

[0006] This invention proposes a carbon dioxide gas shielded welding machine with a guiding structure, which allows the welding torch to be adjusted at the required welding angle and can close the opening for placing materials in the protective shell during welding torch operation, thereby improving the safety of welding machine operation.

[0007] This utility model is achieved through the following technical solution: a carbon dioxide gas shielded welding machine with a guiding structure, including a protective shell, an observation cover rotatably connected to the top of the protective shell, a handle installed on one side of the observation cover, and a snap-fit ​​assembly for fixing the position of the observation cover on one side of the protective shell. The snap-fit ​​assembly includes a positioning block fixed to one side of the observation cover and a limiting block fixed to one side of the protective shell. A positioning frame is rotatably connected to one side of the limiting block, and a spring is fixed to the bottom end of the positioning frame and one side of the protective shell.

[0008] Furthermore, the inner wall of the protective shell is provided with two first clamping rods, one of which is rotatably connected to a bolt, and the bolt is threaded onto one side of the protective shell.

[0009] The inner wall of the protective shell is fixed with a guide frame, and a connecting block is slidably connected inside the guide frame. A connecting assembly for adjusting the angle of the welding torch is provided on one side of the connecting block. The connecting assembly includes a support frame fixed to one side of the connecting block, and a connecting frame slidably connected to one side of the support frame. A set of sliding grooves is opened on the top surface of the connecting frame. Two support rods are fixed to the inner wall of the connecting frame. A rotating rod is rotatably sleeved between the two support rods. A worm gear is fixedly sleeved around the rotating rod. A worm wheel fixed to one side of the connecting block meshes around the worm gear.

[0010] Furthermore, a set of limiting grooves are provided on the surface of the support frame, and a slider slides on the inner side wall of the support frame, with one side of the slider sliding through the limiting groove and fixed to one side of the connecting frame.

[0011] Furthermore, one end of the rotating rod rotatably passes through one of the support rods and is fixedly sleeved with a first transmission wheel, which rotates on one side of the connecting frame.

[0012] Furthermore, a transmission threaded rod is rotatably sleeved inside the guide frame, one end of which is connected to an external power source, and the transmission threaded rod is threadedly sleeved inside the connecting block.

[0013] One side of the connecting frame is provided with a clamping assembly for fixing the welding gun. The clamping assembly includes a bidirectional threaded rod rotatably sleeved inside the connecting frame. Two transmission blocks that slide inside the slide groove are threadedly sleeved on the outer side of the bidirectional threaded rod. A second clamping rod that slides on one side of the connecting frame is fixed to one side of the transmission blocks. An anti-slip pad is fixed to one side of the second clamping rod.

[0014] Furthermore, the two ends of the bidirectional threaded rod are provided with two sections of threads in opposite directions, and one end of the bidirectional threaded rod rotatably passes through the connecting frame and is fixedly sleeved with the second transmission wheel.

[0015] This utility model provides a carbon dioxide gas shielded welding machine with a guiding structure, which has the following beneficial effects:

[0016] 1. This carbon dioxide gas shielded welding machine with a guide structure can fix the position of the first clamp rod on the pipe by rotating the bolt, and then rotate the first transmission wheel, which drives the worm gear to rotate on the surface of the worm wheel by using the rotating rod, so that the connecting frame slides on the surface of the support frame. It can adjust the angle between the connecting frame and the connecting block, so that the welding gun can be adjusted to the required welding angle.

[0017] 2. This carbon dioxide gas shielded welding machine with a guiding structure closes the observation cover, triggers the positioning frame by the positioning block, and pushes the positioning frame with a spring. Through the cooperation between the positioning frame and the positioning block, the position of the observation cover can be fixed, and the opening for placing materials in the protective shell can be closed when the welding gun is working, thereby improving the safety of the surrounding environment when the welding machine is working. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a three-dimensional sectional view of the internal structure of the observation cover in this utility model;

[0020] Figure 3 This is a three-dimensional structural diagram of the connecting component in this utility model;

[0021] Figure 4 This is a three-dimensional structural diagram of the clamping component in this utility model.

[0022] Explanation of reference numerals in the attached figures

[0023] 1. Protective shell; 2. First clamping bar; 3. Observation cover; 31. Handle;

[0024] 4. Snap-fit ​​assembly; 41. Positioning block; 42. Limiting block; 43. Positioning frame; 44. Spring;

[0025] 5. Guide frame; 6. Connecting block; 7. Transmission threaded rod;

[0026] 8. Connecting assembly; 81. Support frame; 82. Connecting frame; 821. Slide groove; 83. Support rod; 84. Rotating rod; 85. Worm gear; 86. Worm wheel; 87. First transmission wheel; 88. Limiting groove; 89. Slider;

[0027] 9. Clamping assembly; 91. Bidirectional threaded rod; 92. Transmission block; 93. Second clamping rod; 94. Anti-slip pad; 95. Second transmission wheel;

[0028] 10. Bolts. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0030] Please see Figures 1-4The present invention proposes the following implementation scheme: a carbon dioxide gas shielded welding machine with a guiding structure, including a protective shell 1, an observation cover 3 rotatably connected to the top of the protective shell 1, a handle 31 installed on one side of the observation cover 3, and a snap-fit ​​assembly 4 for fixing the position of the observation cover 3 on one side of the protective shell 1. The snap-fit ​​assembly 4 includes a positioning block 41 fixed to one side of the observation cover 3 and a limiting block 42 fixed to one side of the protective shell 1. A positioning frame 43 is rotatably connected to one side of the limiting block 42, and a spring 44 is fixed to the bottom end of the positioning frame 43 and one side of the protective shell 1.

[0031] In the above scheme, closing the observation cover 3 causes the positioning block 41 to trigger the positioning frame 43, and the spring 44 pushes the positioning frame 43. Through the cooperation between the positioning frame 43 and the positioning block 41, the position of the observation cover 3 can be fixed.

[0032] Please refer to this carefully. Figure 2 The inner wall of the protective shell 1 is provided with two first clamping rods 2, one of which is rotatably connected to a bolt 10, and the bolt 10 is threaded onto one side of the protective shell 1.

[0033] Please refer to this carefully. Figure 2 , Figure 3 and Figure 4 A guide frame 5 is fixed to the inner wall of the protective shell 1. A connecting block 6 is slidably connected inside the guide frame 5. A connecting component 8 for adjusting the angle of the welding torch is provided on one side of the connecting block 6. The connecting component 8 includes a support frame 81 fixed to one side of the connecting block 6. A connecting frame 82 is slidably connected to one side of the support frame 81. A set of sliding grooves 821 is opened on the top surface of the connecting frame 82. Two support rods 83 are fixed to the inner wall of the connecting frame 82. A rotating rod 84 is rotatably sleeved between the two support rods 83. A worm gear 85 is fixedly sleeved on the outer periphery of the rotating rod 84. A worm wheel 86 fixed to one side of the connecting block 6 meshes with the outer periphery of the worm gear 85.

[0034] Please refer to this carefully. Figure 3 The surface of the support frame 81 is provided with a set of limiting grooves 88, and a slider 89 slides on the inner side wall of the support frame 81. One side of the slider 89 slides through the limiting groove 88 and is fixed to one side of the connecting frame 82.

[0035] One end of the rotating rod 84 rotates through one of the support rods 83 and is fixedly sleeved with the first transmission wheel 87, which rotates on one side of the connecting frame 82.

[0036] In the above scheme, rotating the first transmission wheel 87, using the rotating rod 84 to drive the worm 85 to rotate on the surface of the worm wheel 86, causes the connecting frame 82 to slide on the surface of the support frame 81, which can adjust the angle between the connecting frame 82 and the connecting block 6.

[0037] Please refer to this carefully. Figure 2 The guide frame 5 has a rotating drive threaded rod 7 inside, one end of which is connected to an external power source, and the drive threaded rod 7 is threadedly sleeved inside the connecting block 6.

[0038] Please refer to this carefully. Figure 4 One side of the connecting frame 82 is provided with a clamping assembly 9 for fixing the welding gun. The clamping assembly 9 includes a bidirectional threaded rod 91 that is rotatably sleeved inside the connecting frame 82. Two transmission blocks 92 that slide inside the slide groove 821 are threadedly sleeved on the outer side of the bidirectional threaded rod 91. A second clamping rod 93 that slides on one side of the connecting frame 82 is fixed on one side of the transmission block 92. An anti-slip pad 94 is fixed on one side of the second clamping rod 93.

[0039] The two ends of the bidirectional threaded rod 91 are provided with two threads in opposite directions. One end of the bidirectional threaded rod 91 rotatably passes through the connecting frame 82 and is fixedly sleeved with the second transmission wheel 95.

[0040] In the above scheme, rotating the second transmission wheel 95, using the bidirectional threaded rod 91 and the transmission block 92 to drive the two second clamping rods 93 to move closer to each other, can fix the position of the welding gun.

[0041] In use, the welding torch is placed between the two second clamping rods 93. Then, rotating the second transmission wheel 95 causes the two second clamping rods 93 to move closer together using the bidirectional threaded rod 91 and the transmission block 92, thus fixing the position of the welding torch and increasing its stability during use. The pipe to be welded is placed between the two first clamping rods 2. Rotating the bolt 10 fixes the position of the first clamping rods 2. Then, rotating the first transmission wheel 87 causes the rotating rod 84 to drive the worm gear 85 to rotate on the surface of the worm wheel 86, allowing the connecting frame 82 to slide on the surface of the support frame 81, thus adjusting the connecting frame 82. The angle between the welding gun and the connecting block 6 allows the welding gun to be adjusted according to the required welding angle to improve the quality of the weld. Then, the observation cover 3 is closed, causing the positioning block 41 to trigger the positioning frame 43, and the spring 44 pushes the positioning frame 43. Through the cooperation between the positioning frame 43 and the positioning block 41, the position of the observation cover 3 can be fixed, and the opening for placing materials in the protective shell 1 can be closed when the welding gun is working, improving the safety of the welding machine. At the same time as the welding gun is working, the transmission threaded rod 7 is driven to rotate by external power, which allows the connecting block 6 to slide inside the guide frame 5 and drives the welding gun to move inside the protective shell 1.

[0042] 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 illustrative of the principles of this 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A carbon dioxide gas shielded welding machine with a guiding structure, comprising a protective shell (1), characterized in that: The top of the protective shell (1) is rotatably connected to an observation cover (3). A handle (31) is installed on one side of the observation cover (3). A snap-fit ​​assembly (4) for fixing the position of the observation cover (3) is provided on one side of the protective shell (1). The snap-fit ​​assembly (4) includes a positioning block (41) fixed on one side of the observation cover (3) and a limiting block (42) fixed on one side of the protective shell (1). A positioning frame (43) is rotatably connected to one side of the limiting block (42). A spring (44) is fixed to the bottom of the positioning frame (43) and one side of the protective shell (1). The inner wall of the protective shell (1) is fixed with a guide frame (5), and a connecting block (6) is slidably connected inside the guide frame (5). A connecting assembly (8) for adjusting the angle of the welding torch is provided on one side of the connecting block (6). The connecting assembly (8) includes a support frame (81) fixed on one side of the connecting block (6). A connecting frame (82) is slidably connected on one side of the support frame (81). A set of sliding grooves (821) is opened on the top surface of the connecting frame (82). Two support rods (83) are fixed on the inner wall of the connecting frame (82). A rotating rod (84) is rotatably sleeved between the two support rods (83). A worm gear (85) is fixedly sleeved on the outer periphery of the rotating rod (84). A worm wheel (86) fixed on one side of the connecting block (6) meshes with the outer periphery of the worm gear (85). One side of the connecting frame (82) is provided with a clamping assembly (9) for fixing the welding gun. The clamping assembly (9) includes a bidirectional threaded rod (91) rotatably sleeved inside the connecting frame (82). The outer side of the bidirectional threaded rod (91) is threaded with two transmission blocks (92) that slide inside the slide groove (821). One side of the transmission block (92) is fixed with a second clamping rod (93) that slides on one side of the connecting frame (82). One side of the second clamping rod (93) is fixed with an anti-slip pad (94).

2. The carbon dioxide gas shielded welding machine with a guiding structure according to claim 1, characterized in that: The inner wall of the protective shell (1) is provided with two first clamping rods (2), one of which is rotatably connected to a bolt (10), and the bolt (10) is threaded onto one side of the protective shell (1).

3. A carbon dioxide gas shielded welding machine with a guiding structure according to claim 1, characterized in that: The surface of the support frame (81) is provided with a set of limiting grooves (88), and a slider (89) slides on the inner side wall of the support frame (81). One side of the slider (89) slides through the limiting groove (88) and is fixed to one side of the connecting frame (82).

4. A carbon dioxide gas shielded welding machine with a guiding structure according to claim 1, characterized in that: One end of the rotating rod (84) rotates through one of the support rods (83) and is fixedly sleeved with a first transmission wheel (87), which rotates on one side of the connecting frame (82).

5. A carbon dioxide gas shielded welding machine with a guiding structure according to claim 1, characterized in that: The guide frame (5) is internally rotatably fitted with a transmission threaded rod (7), one end of which is connected to an external power source, and the transmission threaded rod (7) is threadedly fitted inside the connecting block (6).

6. A carbon dioxide gas shielded welding machine with a guiding structure according to claim 1, characterized in that: The two ends of the bidirectional threaded rod (91) are provided with two threads in opposite directions. One end of the bidirectional threaded rod (91) rotatably passes through the connecting frame (82) and is fixedly sleeved with the second transmission wheel (95).