Internal welding machine head
Through the mobile cart and adjustment mechanism of the internal welding head device, precise welding of the welds inside the pipeline is achieved, multiple adjustment problems in small bending changes are solved, and welding efficiency is improved.
Patent Information
- Application Number
- CN202421652417.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-07-12
AI Technical Summary
In the prior art, the pipe position needs to be adjusted multiple times when the welds inside the pipeline are slightly bent and changed, resulting in low welding efficiency.
The internal welding head device is adopted, including a moving trolley and an adjustment mechanism. The moving trolley moves along the longitudinal direction of the pipeline. The position of the welding head is accurately controlled by the adjustment mechanism, and the rollers and balls move in the pipeline. The motor drives the slider to adjust the horizontal and vertical positions of the welding head to achieve accurate welding.
Precise welding is achieved without multiple adjustments to the pipe position, which significantly improves welding efficiency.
Smart Images
Figure CN223265030U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of welding, in particular to an internal welding head. Background Art
[0002] Pipeline welding, the process of rolling steel plates and welding them into pipes, is widely used in industries such as petroleum, chemical, natural gas, shipping, and power. Pipeline welding requires careful consideration of both weld strength and sealing, making it a highly technical and challenging task.
[0003] The existing technology generally welds the straight welds inside the pipeline. If the welds have a small bending change, the pipeline position needs to be adjusted multiple times to weld the internal welds, which greatly reduces work efficiency. Utility Model Content
[0004] In order to solve the problems in the related art, the utility model provides an internal welding head, which solves the problem of low work efficiency due to the need to adjust the position of the pipeline multiple times for internal welding.
[0005] To solve the above problems, the following technical solutions are provided:
[0006] The utility model provides an internal welding machine head comprising a movable carriage for being arranged in a pipeline and moving longitudinally along the pipeline; a welding head arranged toward the pipeline weld is provided on the movable carriage; an adjustment mechanism is provided between the welding head and the movable carriage, and the adjustment mechanism is used to change the position of the welding head.
[0007] In the above scheme, by setting up a mobile trolley, after the external welding of the pipeline is completed, the mobile trolley drives the device to move inside the pipeline, and initially moves it to the approximate weld position where welding is required. When the weld has a small bending change, the position of the welding head is finely moved by adjusting the setting of the mechanism to perform precise welding, thereby solving the problem of having to adjust the pipeline position multiple times for internal weld welding and greatly improving work efficiency.
[0008] Rollers arranged outward are arranged at the four corners of the bottom of the mobile trolley. The rollers are in an outward-octagonal shape. A rolling ball is arranged at the center of each roller, and the rolling ball contacts the inner wall of the pipe.
[0009] In the above solution, the rollers and the balls are arranged to enable the device to move within the pipeline.
[0010] The adjustment mechanism includes a first motor and a second motor. A fixed plate is connected to one side of the interior of the mobile trolley. A horizontal frame is provided on the side wall of the fixed plate. A horizontal screw rod of the first motor is arranged on the horizontal frame. The horizontal screw rod is connected to the first slider. The first slider and the horizontal frame are slidably matched in the horizontal direction. A vertical frame is provided on the outer side of the first slider. A vertical screw rod of the second motor is provided on the vertical frame. A second slider is arranged on the vertical screw rod. The second slider and the vertical frame are slidably matched in the vertical direction. A gear plate is fixedly connected to the outer side of the second slider.
[0011] In the above scheme, the movement of the welding head is precisely controlled by setting the first motor and the second motor. The first slider is set to control the horizontal position adjustment of the welding head, and the second slider is set to control the vertical position adjustment of the welding head.
[0012] The shift plate is U-shaped, and a plurality of through holes are provided in the middle of the shift plate. The welding heads are located in the through holes, and the welding heads are slidably matched with the shift plate.
[0013] A first welding tube is connected to the middle of the welding head, a hole is provided on the other side of the shift plate, the first welding tube passes through the hole, the first welding tube is fixedly connected to the shift plate, and a second welding tube is provided on the other side of the inside of the mobile trolley.
[0014] In the above solution, the gear position can be changed by setting the gear plate. The closer the welding head is located in the through hole of the second slider on the gear plate, the smaller the adjustment range of the first motor and the second motor.
[0015] The above solution has the following advantages:
[0016] 1. Since an internal welding head of the utility model includes a mobile trolley for being set in a pipeline and moving longitudinally along the pipeline, a welding head is provided on the mobile trolley facing the pipeline weld, and an adjustment mechanism is provided between the welding head and the mobile trolley. The adjustment mechanism is used to change the position of the welding head. Through the setting of the mobile trolley, after the external welding of the pipeline is completed, the device is driven by the mobile trolley to move inside the pipeline and initially moved to the approximate weld position where welding is required. When the weld has a small bending change, the position of the welding head can be finely moved by setting the adjustment mechanism, so that precise welding can be performed without adjusting the pipeline position multiple times, thereby greatly improving work efficiency.
[0017] 2. Outwardly arranged rollers are arranged at the four corners of the bottom of the mobile trolley, and a ball is provided at the center of each roller. The ball contacts the inner wall of the pipe and is used for moving the device in the pipe. The adjustment mechanism includes a first motor and a second motor. A horizontal screw rod of the first motor is arranged on the horizontal frame, and the first slider is connected to the horizontal screw rod. A vertical screw rod of the second motor is provided on the vertical frame. The second slider is arranged on the vertical screw rod. Through the setting of the first motor and the second motor, the movement of the welding head is precisely controlled. The setting of the first slider is used to control the horizontal adjustment position of the welding head, and the setting of the second slider is used to control the vertical adjustment position of the welding head. The gear plate is U-shaped, and a plurality of through holes are provided in the middle of the gear plate. The welding head is located in the through holes. The gear plate can be used to change the gear. The closer the welding head is located in the through hole of the second slider on the gear plate, the smaller the position adjustment amplitude of the first motor and the second motor is. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a front view of an internal welding machine head;
[0019] Figure 2 This is a structural diagram of an internal welding head;
[0020] Figure 3 It is a top view of an internal welding machine head;
[0021] Figure 4 A schematic diagram of an internal welding head in a pipeline;
[0022] Figure 5 This is a structural diagram of an internal welding head adjustment mechanism;
[0023] Explanation of the accompanying reference numerals: 1. Mobile trolley; 2. Welding head; 3. Roller; 4. Rolling ball; 5. First motor; 6. Second motor; 7. Fixed plate; 8. Horizontal frame; 9. Horizontal screw rod; 10. Vertical frame; 11. Shift plate; 12. Through hole; 13. First welding pipe; 14. Second welding pipe; 15. Pipeline. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0025] like Figures 1 to 5As shown, an internal welding head of the utility model includes a mobile trolley 1 for being set in a pipe 15 and moving longitudinally along the pipe 15. A welding head 2 is arranged toward the weld seam of the pipe 15 on the mobile trolley 1. An adjustment mechanism is provided between the welding head 2 and the mobile trolley 1. The adjustment mechanism is used to change the position of the welding head 2. The mobile trolley 1 drives the device to move inside the pipe 15 and initially moves to the approximate weld seam position where welding is required. When the weld seam has a small bending change, the position of the welding head 2 can be finely moved by setting the adjustment mechanism, so that precise welding can be performed without adjusting the position of the pipe 15 multiple times, thereby greatly improving work efficiency.
[0026] The four corners of the bottom of the mobile trolley 1 are provided with outwardly arranged rollers 3, which are in an outward octave shape. A ball 4 is provided at the center of each roller 3. The ball 4 contacts the inner wall of the pipe 15 and is used for the movement of the device in the pipe 15.
[0027] The adjustment mechanism includes a first motor 5 and a second motor 6. A fixed plate 7 is connected to one side of the interior of the mobile trolley 1. A horizontal frame 8 is provided on the side wall of the fixed plate 7. A horizontal screw rod 9 of the first motor 5 is arranged on the horizontal frame 8. The horizontal screw rod 9 is connected to the first slider. The first slider and the horizontal frame 8 are slidably matched in the horizontal direction. A vertical frame 10 is provided on the outer side of the first slider. A vertical screw rod of the second motor 6 is provided on the vertical frame 10. A second slider is arranged on the vertical screw rod. The second slider and the vertical frame 10 are slidably matched in the vertical direction. A gear plate 11 is fixedly connected to the outer side of the second slider. The first motor 5 is used to accurately control the horizontal movement position of the welding head 2. The second motor 6 is used to accurately control the vertical movement position of the welding head 2.
[0028] The shift plate 11 is U-shaped and has multiple through-holes 12 in its center. The welding head 2 is positioned within these through-holes 12, slidingly engaging with the shift plate 11. The position of the welding head 2 can be adjusted to varying degrees depending on the position of the welding head 2 within each through-hole 12. The closer the welding head 2 is to the through-hole 12 of the second slider on the shift plate 11, the smaller the adjustment range of the welding head 2 controlled by the first and second motors 5 and 6.
[0029] A first welding tube 13 is connected to the middle of the welding head 2. A hole is provided on the other side of the shift plate 11. The first welding tube 13 passes through the hole. The first welding tube 13 is fixedly connected to the shift plate 11. A second welding tube 14 is provided on the other side of the mobile trolley 1.
[0030] After the external welding of the pipe 15 is completed, the welding head 2 is first placed in the appropriate through hole 12 of the shift plate 11, and then the device is placed in the pipe 15. The roller 3 and the ball 4 are rotated to drive the mobile carriage 1 to move inside the pipe 15, and initially move to the approximate position where welding is required. Then, the first motor 5 is used to accurately control the horizontal movement position of the welding head 2, and the second motor 6 is used to accurately control the vertical movement position of the welding head 2. Finally, the welding head 2 is adjusted to the correct position for precise welding.
[0031] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements, it can be a direct connection, or it can be an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.
[0032] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. An internal welding head, characterized in that: The invention comprises a movable carriage (1) for being arranged in a pipeline (15) and moving longitudinally along the pipeline (15); a welding head (2) is provided on the movable carriage (1) and is arranged toward the weld seam of the pipeline (15); an adjustment mechanism is provided between the welding head (2) and the movable carriage (1); the adjustment mechanism is used to change the position of the welding head (2).
2. An internal welding head according to claim 1, characterized in that: Rollers (3) arranged outward are arranged at the four corners of the bottom of the mobile trolley (1). The rollers (3) are in an outward-octagonal shape. A ball (4) is arranged at the center of each roller (3). The ball (4) contacts the inner wall of the pipe (15).
3. The internal welding head according to claim 1, characterized in that: The adjustment mechanism comprises a first motor (5) and a second motor (6); a fixed plate (7) is connected to one side of the interior of the mobile trolley (1); a horizontal frame (8) is provided on the side wall of the fixed plate (7); a horizontal screw rod (9) of the first motor (5) is arranged on the horizontal frame (8); a first slider is connected to the horizontal screw rod (9); the first slider and the horizontal frame (8) are slidably matched in the horizontal direction; a vertical frame (10) is provided on the outer side of the first slider; a vertical screw rod of the second motor (6) is provided on the vertical frame (10); a second slider is provided on the vertical screw rod; the second slider and the vertical frame (10) are slidably matched in the vertical direction; a gear plate (11) is fixedly connected to the outer side of the second slider.
4. An internal welding head according to claim 3, characterized in that: The shift plate (11) is U-shaped, and a plurality of through holes (12) are provided in the middle of the shift plate (11). The welding head (2) is located in the through hole (12), and the welding head (2) and the shift plate (11) are slidably matched.
5. An internal welding head according to claim 4, characterized in that: A first welding tube (13) is connected to the middle of the welding head (2), a hole is provided on the other side of the shift plate (11), the first welding tube (13) passes through the hole, and the first welding tube (13) is fixedly connected to the shift plate (11), and a second welding tube (14) is provided on the other side of the interior of the mobile trolley (1).