Auxiliary device of handheld welding machine

By designing an auxiliary device including a worm gear, a worm and a clamping block, the problem of circular tube moving during welding in a handheld welding machine is solved, and the fixing and adjustment of circular tubes of different sizes and lengths is realized, which improves the welding quality and practicality of the device.

CN222643549UActive Publication Date: 2025-03-21JIANGSU JUNFEI LASER TECH CO LTD

Patent Information

Application Number
CN202421318863.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-11
Publication Date
2025-03-21
Estimated Expiration
2034-06-11

AI Technical Summary

Technical Problem

The auxiliary devices of existing handheld welding machines are not convenient to fix the circular tube when placing it on the support table, causing the circular tube to move during the welding process and affecting the welding quality.

Method used

An auxiliary device including a base, a fixing disc, a worm gear, a worm, a clamping block and a limiting block is designed. The worm and a worm gear drive the clamping block to be deployed by a motor, and the supporting rod and a limiting groove are used to achieve the fixation of circular tubes of different sizes.

Benefits of technology

It effectively solves the problem of circular tube moving during welding, improves welding quality, and adjusts circular tubes of different lengths through motor drive, improving the practicality of auxiliary devices.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of welding, and discloses an auxiliary device of a handheld welding machine, which comprises a base and a fixing disc, a limiting groove is arranged in the base, a limiting assembly is arranged on one side of the fixing disc, a first motor is fixedly connected to one side of the fixing disc, a worm is fixedly connected to the output end of the first motor, and a second motor is fixedly connected to the output end of the worm. A worm wheel is rotatably connected to one side of the fixing disc, the worm wheel is meshed with the outer wall of the worm, an arc-shaped groove is formed in the worm wheel, a supporting rod is arranged in the fixing disc, and the outer wall of the supporting rod is slidably connected to the interior of the limiting groove. According to the round pipe welding device, through cooperation of the fixing disc, the clamping blocks, the worm gear, the worm, the supporting rod and the first support, the effect of adapting to fixing of round pipes of different sizes is achieved, the problem that the round pipes move in the welding process due to the fact that only the round pipes are placed on a supporting table and are not convenient to fix is solved, and the welding quality of the round pipes is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of welding, in particular to an auxiliary device of a handheld welding machine. Background Art

[0002] A handheld welding machine is a portable device used for manual welding operations. The auxiliary devices of the handheld welding machine can improve the efficiency, safety and welding quality of the welding process. The flat design of the adjustable welding table used during the welding process helps to provide a stable working surface, allowing the welder to more easily control the welding gun or welding tool during the welding process.

[0003] After searching, the publication number CN219293008U discloses a handheld laser welding machine round tube auxiliary welding device, which belongs to the field of welding technology and includes an operating table, a screw rod is rotatably arranged on one side of the operating table, sliders are slidably arranged on both sides of the screw rod surface, a rotating handle is connected to one side of the screw rod, an auxiliary support mechanism is arranged on the operating table, the threads on both sides of the screw rod are arranged oppositely, an adjustment rod is rotatably arranged above the two sliders, and support tables are rotatably arranged at the ends of the two adjustment rods, and the ends between the support tables are connected by a rotating shaft, and clamping claws A are fixedly arranged on the surfaces of the two support tables, and threaded rods A are threadedly arranged on both sides of the clamping claws A. In this utility model, by setting an adjustment rod, a support table and a clamping claw A, and driven by the slider, the adjustment rod drives the support tables to adjust the angle, so as to assist in vertical or some angle welding between two round tubes, making the device more applicable. However, this patent only solves the problem of setting up an adjusting rod, a support platform and a clamping claw A, and under the drive of the slider, the adjusting rod drives the support platform to adjust the angle, thereby assisting in vertical or certain angle welding between two round tubes, making the device more applicable. It does not solve the problem that only placing the round tube on the support platform makes it inconvenient to fix it, causing the round tube to move during the welding process, affecting the welding quality. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides an auxiliary device for a handheld welding machine, aiming to improve the problem that only placing the round tube on a support table makes it inconvenient to fix it, resulting in movement of the round tube during the welding process and affecting the welding quality.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an auxiliary device of a handheld welding machine, comprising a base and a fixed plate, a limiting groove is provided inside the base, a limiting assembly is arranged on one side of the fixed plate, a motor is fixedly connected to one side of the fixed plate, a worm is fixedly connected to the output end of the motor, a worm wheel is rotatably connected to one side of the fixed plate, the worm wheel is meshed with the outer wall of the worm, an arc groove is provided inside the worm wheel, a support rod is arranged inside the fixed plate, the outer wall of the support rod is slidably connected to the inside of the limiting groove, a clamping block is fixedly connected to one end of the support rod, a connecting column is fixedly connected to one side of the support rod, and the outer wall of the connecting column is slidably connected to the inside of the arc groove.

[0006] As a further description of the above technical solution:

[0007] The limiting assembly includes a bracket one, one side of the bracket one is fixedly connected to one side of the fixed disk, and the outer wall of the worm is rotatably connected to the inside of the bracket one.

[0008] As a further description of the above technical solution:

[0009] One side of the base is fixedly connected with a second motor, and an output end of the second motor is fixedly connected with a bidirectional threaded rod.

[0010] As a further description of the above technical solution:

[0011] A second bracket is fixedly connected to one side of the fixed plate, and a limiting block is fixedly connected to the bottom of the second bracket.

[0012] As a further description of the above technical solution:

[0013] The outer wall of the limit block is slidably connected to the inside of the base, and one side of the limit block is fixedly connected to a connecting block.

[0014] As a further description of the above technical solution:

[0015] The inner thread of the connection block is connected to the outer wall of the bidirectional threaded rod, and the connection block is symmetrically arranged and fixedly connected to the limit block.

[0016] As a further description of the above technical solution:

[0017] A telescopic rod is arranged inside the base, and both ends of the telescopic rod are fixedly connected between the limit blocks.

[0018] As a further description of the above technical solution:

[0019] The outer wall of the telescopic rod is sleeved with a spring, and both ends of the spring are fixedly connected between the limit blocks.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the utility model, firstly, the effect of fixing round tubes of different sizes is achieved through the cooperation among the fixing plate, the clamping block, the worm gear, the worm, the support rod and the bracket, which solves the problem that the round tube is only placed on the support table, which is inconvenient to fix, resulting in the movement of the round tube during the welding process, thereby improving the welding quality of the round tube.

[0022] 2. In the utility model, the effect of adjusting round tubes of different lengths is achieved through the cooperation between the motor 2, the bidirectional threaded rod, the telescopic rod, the spring and the limit block, which solves the problem that the auxiliary device of the traditional handheld welding machine is not convenient for adjusting the spacing of the fixing seat for round tubes of different lengths, and improves the practicability of the auxiliary device of the handheld welding machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional diagram of an auxiliary device for a handheld welding machine proposed by the utility model;

[0024] Figure 2 This is a schematic diagram of the structure of a clamping block of an auxiliary device of a handheld welding machine proposed by the utility model;

[0025] Figure 3 The utility model discloses a side view of the internal structure of a base of an auxiliary device for a handheld welding machine.

[0026] Legend:

[0027] 1. Base; 2. Fixed plate; 3. Limiting groove; 4. Worm gear; 5. Arc groove; 6. Motor 1; 7. Worm; 8. Bracket 1; 9. Support rod; 10. Clamping block; 11. Connecting column; 12. Bracket 2; 13. Limiting block; 14. Connecting block; 15. Motor 2; 16. Bidirectional threaded rod; 17. Telescopic rod; 18. Spring. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Reference Figure 1-Figure 2, the utility model provides an embodiment: an auxiliary device for a handheld welding machine, including a base 1 and a fixed plate 2, a limiting groove 3 is provided inside the base 1, a limiting assembly is provided on one side of the fixed plate 2, a motor 6 is fixedly connected to one side of the fixed plate 2, a worm 7 is fixedly connected to the output end of the motor 6, a worm wheel 4 is rotatably connected to one side of the fixed plate 2, the worm wheel 4 is meshed with the outer wall of the worm 7, an arc groove 5 is provided inside the worm wheel 4, a support rod 9 is provided inside the fixed plate 2, the outer wall of the support rod 9 is slidably connected to the inside of the limiting groove 3, a clamping block 10 is fixedly connected to one end of the support rod 9, a connecting column 11 is fixedly connected to one side of the support rod 9, the outer wall of the connecting column 11 is slidably connected to the inside of the arc groove 5, the limiting assembly includes a bracket 8, one side of the bracket 8 is fixedly connected to one side of the fixed plate 2, and the outer wall of the worm 7 is rotatably connected to the inside of the bracket 8;

[0030] Specifically, driven by the motor 6, the worm 7 starts to rotate, and this rotation process is limited on the fixed disk 2 on one side by the bracket 8. In this way, the worm 7 can effectively drive the worm wheel 4 to rotate during the rotation process. During the rotation process of the worm wheel 4, the clamping block 10 is unfolded through its arc groove 5. In this process, the movement of the clamping block 10 is limited by the support rod 9, which is limited inside the limiting groove 3. The support rod 9 is connected to the arc groove 5 through the connecting column 11, so that when the worm wheel 4 rotates, the connecting column 11 can drive the clamping block 10 to unfold.

[0031] Reference Figure 1 and Figure 3 A motor 2 15 is fixedly connected to one side of the base 1, and a bidirectional threaded rod 16 is fixedly connected to the output end of the motor 2 15. A bracket 2 12 is fixedly connected to one side of the fixed plate 2. A limit block 13 is fixedly connected to the bottom of the bracket 2. The outer wall of the limit block 13 is slidably connected to the inside of the base 1. A connecting block 14 is fixedly connected to one side of the limit block 13. The inner thread of the connecting block 14 is connected to the outer wall of the bidirectional threaded rod 16. The connecting block 14 is symmetrically arranged and fixedly connected to the limit block 13. A telescopic rod 17 is arranged inside the base 1. Both ends of the telescopic rod 17 are fixedly connected between the limit blocks 13. A spring 18 is sleeved on the outer wall of the telescopic rod 17. Both ends of the spring 18 are fixedly connected between the limit blocks 13.

[0032] Specifically, during the operation of welding round pipes, it is first necessary to adjust the spacing of the fixed plate 2 according to the length of the round pipe to be welded. This is a key step, because the appropriate spacing can ensure the quality and efficiency of welding. Next, the output end of the motor 2 15 is started, driving the bidirectional threaded rod 16 to rotate. This process is automated, which greatly improves the efficiency of the welding process. During the rotation of the bidirectional threaded rod 16, the connecting block 14 plays a key role. It transmits power to the limit block 13 to close it. In this process, the tension generated by the spring 18 squeezes the limit block 13, ensuring the stability and reliability of the limit block 13. It is worth mentioning that the telescopic rod 17 between the limit blocks 13 makes the limit blocks 13 more stable during operation. This design not only improves the stability of the welding process, but also reduces the risk of equipment failure.

[0033] Working principle: when using the auxiliary device of the handheld welding machine, first adjust the spacing of the fixed disk 2 according to the length of the round tube to be welded, and the output end of the motor 2 15 drives the bidirectional threaded rod 16 to rotate, and then when the bidirectional threaded rod 16 rotates, the limit block 13 is driven to close through the connecting block 14, and the tension generated by the spring 18 squeezes the limit block 13. The telescopic rod 17 between the limit blocks 13 can make the limit block 13 run more smoothly, and then the output end of the motor 1 6 drives the worm 7 to rotate, and the worm 7 is limited on one side of the fixed disk 2 through the bracket 1 8. When the worm 7 rotates, it drives the worm wheel 4 to rotate, and when the worm wheel 4 rotates, it drives the clamping block 10 to expand through the arc groove 5, and the clamping block 10 is limited inside the limit groove 3 by the support rod 9, and the support rod 9 is inside the arc groove 5 through the connecting column 11, and then when the worm wheel 4 rotates, it drives the clamping block 10 to expand through the connecting column 11, so as to clamp and fix round tubes of different sizes.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An auxiliary device for a handheld welding machine, comprising a base (1) and a fixing plate (2), characterized in that: A limiting groove (3) is provided inside the base (1); a limiting assembly is provided on one side of the fixed disk (2); a motor (6) is fixedly connected to one side of the fixed disk (2); a worm (7) is fixedly connected to the output end of the motor (6); a worm wheel (4) is rotatably connected to one side of the fixed disk (2); the worm wheel (4) is meshed with the outer wall of the worm (7); an arc groove (5) is provided inside the worm wheel (4); a support rod (9) is provided inside the fixed disk (2); the outer wall of the support rod (9) is slidably connected to the inside of the limiting groove (3); a clamping block (10) is fixedly connected to one end of the support rod (9); a connecting column (11) is fixedly connected to one side of the support rod (9); the outer wall of the connecting column (11) is slidably connected to the inside of the arc groove (5).

2. The auxiliary device of a handheld welding machine according to claim 1, characterized in that: The limiting assembly comprises a bracket one (8), one side of the bracket one (8) is fixedly connected to one side of the fixed disk (2), and the outer wall of the worm (7) is rotatably connected to the inside of the bracket one (8).

3. The auxiliary device of a handheld welding machine according to claim 1, characterized in that: One side of the base (1) is fixedly connected to a second motor (15), and an output end of the second motor (15) is fixedly connected to a bidirectional threaded rod (16).

4. The auxiliary device for a handheld welding machine according to claim 1, characterized in that: A second bracket (12) is fixedly connected to one side of the fixed plate (2), and a limiting block (13) is fixedly connected to the bottom of the second bracket (12).

5. The auxiliary device of a handheld welding machine according to claim 4, characterized in that: The outer wall of the limit block (13) is slidably connected to the inside of the base (1), and a connecting block (14) is fixedly connected to one side of the limit block (13).

6. The auxiliary device for a handheld welding machine according to claim 5, characterized in that: The connection block (14) is internally threadedly connected to the outer wall of the bidirectional threaded rod (16), and the connection block (14) is symmetrically arranged and fixedly connected to the limit block (13).

7. The auxiliary device for a handheld welding machine according to claim 1, characterized in that: A telescopic rod (17) is arranged inside the base (1), and both ends of the telescopic rod (17) are fixedly connected between the limit blocks (13).

8. The auxiliary device for a handheld welding machine according to claim 7, characterized in that: The outer wall of the telescopic rod (17) is sleeved with a spring (18), and both ends of the spring (18) are fixedly connected between the limit blocks (13).

Citation Information

Patent Citations

  • Circular tube auxiliary welding device of handheld laser welding machine

    CN219293008U

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