Small-bore casing automatic welding device

CN224808812UActive Publication Date: 2026-09-29SEVEN METALLURGICAL INSTALLATION ENG CO LTD
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Patent Information

Application Number
CN202522050722.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-24
Publication Date
2026-09-29
Estimated Expiration
2035-09-24

AI Technical Summary

Technical Problem

虽然现有技术中也出现了一些管道焊接装置,但大多针对大口径管道设计,体积较大、结构复杂,无法适应小口径套管的焊接需求,且调节灵活性差,难以精准对准小口径套管的焊接接口,无法保证焊接精度;此外,现有装置的移动定位机构多采用简单滑轨滑动,缺乏稳定的限位与驱动结构,易出现定位偏差;夹持组件也存在夹持力度不均、易划伤套管表面的问题

Benefits of technology

[0005]采用上述进一步方案的有益效果是:底座架上的限位挤压板与齿槽相互卡接,能在移动座组件到位后实现稳固限位,避免焊接时移位;底部对称设置的两个电动推杆,可带动限位挤压板平稳升降,保证卡接或脱离动作精准可控,还能让限位挤压板受力均衡。

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Abstract

The utility model provides a kind of small-bore casing automatic welding device, it is related to casing welding equipment technical field, including mobile seat component, mobile seat component is by clamping casing and support stand and is constituted, further include, support stand bottom is provided with limit seat: adjusting base component, adjusting base component is by the tooth groove plate and limit rod being set on limit seat and is constituted, limit rod is set on limit seat, by adjusting base component, tooth groove plate and limit rod that limit seat is penetrated mutually cooperate, can provide stable guide for mobile seat component movement, avoid deviation when moving;The base frame of both sides provides firm support for tooth groove plate and limit rod, and the mounting frame at both ends can fix base component, prevent device from shaking when working, make mobile seat component move more stable, positioning more accurate, guarantee casing interface alignment, while enhancing the overall stability of device, provide reliable foundation for subsequent welding operation, improve welding quality and operation safety.
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Description

Technical Field

[0001] This utility model relates to the technical field of sleeve welding equipment, and in particular to an automated welding device for small-diameter sleeves. Background Technology

[0002] In the installation of pipeline systems in industries such as petroleum, chemical, and power, welding of small-diameter sleeves (usually referring to sleeves with a diameter of less than 50mm) is very common. Currently, small-diameter sleeve welding is mostly done manually, with operators holding a welding torch to weld the sleeve joints. Although some pipe welding devices have emerged in the existing technology, most are designed for large-diameter pipes, are large in size and complex in structure, cannot meet the welding needs of small-diameter sleeves, and have poor adjustment flexibility, making it difficult to accurately align with the welding interface of small-diameter sleeves and thus failing to guarantee welding accuracy. In addition, the existing devices' moving positioning mechanisms mostly use simple sliding rails, lacking stable limiting and driving structures, which are prone to positioning deviations. The clamping components also have problems such as uneven clamping force and easy scratching of the sleeve surface. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose an automated welding device for small-diameter sleeves. To achieve the above objective, this utility model adopts the following technical solution: An automated welding device for small-diameter sleeves includes at least a movable base assembly, which is composed of a sleeve clamping mechanism and a support frame. It also includes a limiting seat at the bottom of the support frame. The adjustable base assembly consists of a toothed plate and a limiting rod mounted on a limiting seat. The limiting rod passes through the limiting seat. Base frames are provided on both sides of the toothed plate and the limiting rod, and mounting brackets are provided at both ends of the base frames.

[0004] Furthermore, a limiting extrusion plate is provided on the base frame, and the bottom of the limiting extrusion plate is engaged with the tooth groove. An electric push rod is provided at the bottom of the base frame located at the bottom of the limiting extrusion plate. There are two electric push rods in total, and the two electric push rods are symmetrical about the center of the limiting extrusion plate.

[0005] The beneficial effects of adopting the above-mentioned further solution are: the limiting extrusion plate on the base frame is engaged with the tooth groove, which can achieve stable positioning after the moving seat assembly is in place, and avoid displacement during welding; the two electric push rods symmetrically arranged at the bottom can drive the limiting extrusion plate to rise and fall smoothly, ensuring that the engagement or disengagement action is precise and controllable, and also allowing the limiting extrusion plate to be subjected to balanced force.

[0006] Furthermore, the support frame is provided with an adjusting displacement roller, which is engaged with the limiting extrusion plate. An auxiliary moving roller is rotatably connected to the support frame below the limiting extrusion plate, and the auxiliary moving roller contacts the limiting extrusion plate.

[0007] The beneficial effects of adopting the above-mentioned further solution are: the adjusting displacement roller on the support frame engages with the limiting extrusion plate, which can provide a stable driving force for the movement of the moving seat assembly and avoid slippage; the auxiliary moving roller below contacts the limiting extrusion plate, which can assist in guidance and reduce frictional resistance, making the movement smoother and the positioning of the moving seat assembly more accurate.

[0008] Furthermore, a drive motor is provided on one side of the support frame, the output end of the drive motor is connected to the adjustment displacement roller, and a toothed groove is provided at the bottom of the limiting seat.

[0009] The beneficial effects of adopting the above-mentioned further solution are: the drive motor on one side of the support frame is connected to the adjustment displacement roller, which can provide stable power for the adjustment displacement roller, drive the moving seat assembly to move accurately, and avoid the deviation of manual adjustment; the toothed groove at the bottom of the limit seat can be engaged with the limit pressing plate, and achieve a stable lock after the moving seat assembly reaches the designated position.

[0010] Furthermore, the clamping sleeve is provided with clamping components, and there are two clamping components in total, and the two clamping components are symmetrical about the center of the clamping sleeve.

[0011] The beneficial effects of adopting the above-mentioned further solution are: two clamping components are symmetrically arranged on the clamping sleeve, which can apply clamping force from both sides of the sleeve simultaneously, so that the sleeve is subjected to balanced force, avoiding sleeve displacement or deformation due to unilateral force, and ensuring that the sleeve is always in a stable posture during welding. This symmetrical structure can also be adapted to small-diameter sleeves with different outer diameters, and precise clamping can be achieved by synchronously adjusting the components on both sides.

[0012] Furthermore, the clamping assembly consists of a clamping seat and an adjusting threaded rod. The adjusting threaded rod is rotatably connected to the clamping seat and is threadedly connected to the clamping sleeve. Both clamping seats are provided with anti-slip liners on the side that is close to each other.

[0013] The beneficial effects of adopting the above-mentioned further solution are as follows: In the clamping assembly, the adjusting threaded rod is threadedly connected to the clamping sleeve and rotatably connected to the clamping seat. Rotating the threaded rod can push the clamping seat to smoothly approach or move away from the sleeve, which is convenient for adapting to different specifications of sleeves. The anti-slip liner on the inner side of the clamping seat can prevent scratching the surface of the sleeve during clamping and can also increase the friction with the sleeve.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows: In this invention, by adjusting the toothed plate and the limiting rod that penetrates the limiting seat in the base assembly, a stable guide can be provided for the movement of the moving seat assembly, preventing deviation during movement. The base frames on both sides provide stable support for the toothed plate and the limiting rod, while the mounting brackets at both ends can fix the base assembly to prevent shaking during operation, making the moving seat assembly move more smoothly and positioning more accurately, ensuring the alignment of the sleeve interface, and enhancing the overall stability of the device. This provides a reliable foundation for subsequent welding operations, improving welding quality and operational safety. Attached Figure Description

[0015] Figure 1 This is a front view of the small-diameter sleeve automated welding device of this utility model; Figure 2 This is an exploded view of the small-diameter sleeve automated welding device of this utility model; Figure 3 This is a structural diagram of the clamping component in the small-diameter sleeve automated welding device of this utility model; Figure 4 This is a structural diagram of the movable seat assembly in the small-diameter sleeve automated welding device of this utility model; Figure 5 This is an exploded view of the adjusting base assembly in the small-diameter sleeve automated welding device of this utility model; Figure 6 This is a structural diagram of the adjusting base assembly in the small-diameter sleeve automated welding device of this utility model.

[0016] Figure label: 1. Moving seat assembly; 11. Clamping sleeve; 12. Support frame; 13. Adjusting displacement roller; 14. Auxiliary moving roller; 15. Limiting seat; 151. Toothed groove; 16. Drive motor; 2. Clamping assembly; 21. Clamping seat; 22. Anti-slip liner; 23. Adjusting threaded rod; 3. Adjusting base assembly; 31. Base frame; 32. Toothed groove plate; 33. Limiting rod; 34. Limiting compression plate; 35. Electric push rod; 36. Mounting bracket. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example 1: like Figure 1-6As shown, this utility model provides a technical solution: an automated welding device for small-diameter sleeves, comprising at least a movable seat assembly 1, which consists of a sleeve clamping assembly 11 and a support frame 12, and further comprising a limiting seat 15 provided at the bottom of the support frame 12. The adjustable base assembly 3 consists of a toothed plate 32 and a limiting rod 33 mounted on the limiting seat 15. The limiting rod 33 passes through the limiting seat 15. Base frames 31 are provided on both sides of the toothed plate 32 and the limiting rod 33. Mounting brackets 36 are provided at both ends of the base frames 31. By adjusting the base assembly 3, the toothed plate 32 and the limiting rod 33 passing through the limiting seat 15 cooperate with each other to provide stable guidance for the movement of the movable seat assembly 1 and prevent deviation during movement. The base frames 31 on both sides provide stable support for the toothed plate 32 and the limiting rod 33, while the mounting brackets 36 at both ends can fix the base assembly to prevent shaking during operation, making the movement of the movable seat assembly 1 more stable and the positioning more accurate, ensuring the alignment of the sleeve interface, and enhancing the overall stability of the device. This provides a reliable foundation for subsequent welding operations and improves welding quality and operational safety.

[0019] An adjusting displacement roller 13 is provided on the support frame 12. The adjusting displacement roller 13 is engaged with the limiting extrusion plate 34. An auxiliary moving roller 14 is rotatably connected to the support frame 12 below the limiting extrusion plate 34. The auxiliary moving roller 14 contacts the limiting extrusion plate 34. The engagement of the adjusting displacement roller 13 on the support frame 12 with the limiting extrusion plate 34 provides a stable driving force for the movement of the moving seat assembly 1, preventing slippage. The contact between the lower auxiliary moving roller 14 and the limiting extrusion plate 34 assists in guidance and reduces frictional resistance, making the movement smoother. This makes the positioning of the moving seat assembly 1 more accurate, ensures the alignment of the sleeve interface, improves welding quality, reduces component wear, and extends the service life of the device.

[0020] A drive motor 16 is provided on one side of the support frame 12. The output end of the drive motor 16 is connected to the adjusting displacement roller 13. The bottom of the limiting seat 15 is provided with a toothed groove 151. The drive motor 16 on one side of the support frame 12 is connected to the adjusting displacement roller 13, which can provide stable power to the adjusting displacement roller 13 and drive the moving seat assembly 1 to move precisely, avoiding the deviation of manual adjustment. The toothed groove 151 at the bottom of the limiting seat 15 can be engaged with the limiting extrusion plate 34 to achieve a stable lock after the moving seat assembly 1 reaches the designated position, preventing displacement during welding, making the sleeve interface more accurately aligned, ensuring welding quality, simplifying the operation process, and improving the stability of operation.

[0021] A limiting extrusion plate 34 is provided on the base frame 31. The bottom of the limiting extrusion plate 34 is engaged with the toothed groove 151. Two electric push rods 35 are provided at the bottom of the base frame 31, located at the bottom of the limiting extrusion plate 34. The two electric push rods 35 are symmetrical about the center of the limiting extrusion plate 34. The limiting extrusion plate 34 on the base frame 31 is engaged with the toothed groove 151, which can achieve stable positioning after the moving seat assembly 1 is in place, preventing displacement during welding. The two electric push rods 35 symmetrically arranged at the bottom can drive the limiting extrusion plate 34 to rise and fall smoothly, ensuring precise and controllable engagement or disengagement. They can also make the limiting extrusion plate 34 bear force evenly, reduce component wear, make positioning and locking more reliable, ensure the alignment accuracy of the sleeve interface, improve welding quality, simplify the operation process, and enhance the stability of the device operation.

[0022] Example 2: The clamping sleeve 11 is equipped with two clamping components 2, which are symmetrical about the center of the clamping sleeve 11. The two clamping components 2 can apply clamping force from both sides of the sleeve simultaneously, so that the sleeve is subjected to balanced force and avoids sleeve displacement or deformation due to force on one side. This ensures that the sleeve is always in a stable position during welding. This symmetrical structure can also be adapted to small-diameter sleeves with different outer diameters. By adjusting the components on both sides simultaneously, precise clamping can be achieved, which not only prevents the sleeve from loosening during welding, but also avoids excessive clamping and damage to the sleeve surface, laying the foundation for subsequent precise welding and improving the overall welding quality and operational stability.

[0023] The clamping assembly 2 consists of a clamping seat 21 and an adjusting threaded rod 23. The adjusting threaded rod 23 is rotatably connected to the clamping seat 21 and forms a threaded connection with the clamping sleeve 11. Both clamping seats 21 are provided with anti-slip liners 22 on their sides that are close to each other. In the clamping assembly 2, the adjusting threaded rod 23 is threadedly connected to the clamping sleeve 11 and rotatably connected to the clamping seat 21. By rotating the threaded rod, the clamping seat 21 can be smoothly pushed closer to or away from the sleeve, thus facilitating the adaptation of sleeves of different specifications. The anti-slip liners 22 on the inner side of the clamping seat 21 not only prevent scratching the surface of the sleeve during clamping, but also increase the friction with the sleeve, preventing the sleeve from sliding during welding, ensuring that the sleeve clamping is both stable and flexible, and ensuring the stability of the sleeve posture during welding, thereby improving the convenience of operation.

[0024] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An automated welding device for small-diameter sleeves, comprising at least a movable seat assembly (1), the movable seat assembly (1) being composed of a sleeve clamping assembly (11) and a support frame (12), characterized in that, It also includes a limiting seat (15) at the bottom of the supporting frame (12): Adjustable base assembly (3) is composed of a toothed plate (32) and a limiting rod (33) set on a limiting seat (15). The limiting rod (33) is set through the limiting seat (15). A base frame (31) is provided on both sides of the toothed plate (32) and the limiting rod (33). A mounting frame (36) is provided at both ends of the base frame (31).

2. The automated welding device for small-diameter sleeves according to claim 1, characterized in that: The base frame (31) is provided with a limiting extrusion plate (34), the bottom of the limiting extrusion plate (34) is engaged with the tooth groove (151), and the bottom of the base frame (31) is provided with an electric push rod (35) at the bottom of the limiting extrusion plate (34). There are two electric push rods (35), and the two electric push rods (35) are symmetrical about the center of the limiting extrusion plate (34).

3. The automated welding device for small-diameter sleeves according to claim 2, characterized in that: An adjusting displacement roller (13) is provided on the support frame (12). The adjusting displacement roller (13) is engaged with the limiting extrusion plate (34). An auxiliary moving roller (14) is rotatably connected on the support frame (12) below the limiting extrusion plate (34). The auxiliary moving roller (14) is in contact with the limiting extrusion plate (34).

4. The automated welding device for small-diameter sleeves according to claim 3, characterized in that: A drive motor (16) is provided on one side of the support frame (12). The output end of the drive motor (16) is connected to the adjustment displacement roller (13). The bottom of the limiting seat (15) is provided with a toothed groove (151).

5. The automated welding device for small-diameter sleeves according to claim 1, characterized in that: The clamping sleeve (11) is provided with a clamping component (2), and there are two clamping components (2) in total, and the two clamping components (2) are symmetrical about the center of the clamping sleeve (11).

6. The automated welding device for small-diameter sleeves according to claim 5, characterized in that: The clamping assembly (2) consists of a clamping seat (21) and an adjusting threaded rod (23). The adjusting threaded rod (23) is rotatably connected to the clamping seat (21). The adjusting threaded rod (23) is threadedly connected to the clamping sleeve (11). The two clamping seats (21) are provided with anti-slip liners (22) on the side that is close to each other.