A kind of inner scar guiding rod suitable for steel pipe inner welding scar

Abstract

The utility model discloses an inner scar guiding rod suitable for steel pipe inner welding scar, relates to inner scar accessory technical field, and its technical key points include widening thickening rod body, is set with short hole groove on the widening thickening rod body, the length of short hole groove is one third of the length of original hole groove, and the end of widening thickening rod body is provided with the connector, the inside of connector is provided with the connecting hole, one side fixed connection of connector has the connecting sleeve that communicates with connecting hole, one side of connecting sleeve is screwed and has the jackscrew. Technical effect is through setting widening thickening rod body, short hole groove, connecting sleeve and jackscrew, can improve the overall strength of guiding rod, reduce the deformation of component, abrasion, increase stability, improve inner scar quality.

Description

Technical Field

[0001] This utility model relates to the technical field of internal scraping accessories, specifically an internal scraping guide rod suitable for internal weld scars on steel pipes. Background Technology

[0002] During high-frequency welding of steel pipes, the high-frequency induction causes a rapid temperature rise at the weld seam, bringing the steel strip edge to a solidification state. This solidification is then followed by extrusion and fusion to form the steel pipe. However, this extrusion process also generates pointed burrs on both the inside and outside of the weld seam. These burrs need to be removed using external and internal scraping tools, respectively. Traditional internal scraping tools mainly consist of a pull rod and a scraping tool. The scraping tool itself comprises a tool head mechanism, a guide mechanism, a retraction mechanism, an infeed positioning mechanism, and a scraping tool support. This type of internal scraping tool is suitable for integration into welding production lines, allowing for simultaneous welding and scraping.

[0003] like Figure 1 The image shows an existing internal scraping guide rod. As a key component of the guiding mechanism, the existing internal scraping guide rod mainly consists of a base rod a1 with a slot a2 for mounting the base rod a1. The end of the base rod a1 has a connecting hole a3 for connecting the scraping blade rod, and the inner wall of the connecting hole a3 has a positioning block a4. However, the base rod a1 of this existing internal scraping guide rod is very thin, and the distance between the slots a2 and the original holes is relatively large. It is prone to deformation and wear after long-term use. Furthermore, the connecting hole a3 for connecting the scraping blade rod mainly relies on the positioning block a4 for positioning, resulting in poor stability and a tendency for unstable operation.

[0004] Therefore, we propose an internal scraping guide rod suitable for weld scars inside steel pipes. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides an internal scraping guide rod suitable for weld scars inside steel pipes. This solves the problems of existing internal scraping guide rods being too thin overall, having a relatively large distance between the original holes and slots, and being prone to deformation and wear after long-term use, resulting in unstable operation.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention provides the following technical solution: an internal scraping guide rod suitable for weld scars inside steel pipes, comprising a widened and thickened rod body, wherein a short hole groove is formed on the widened and thickened rod body;

[0009] The end of the widened and thickened rod is provided with a connector, the connector has a connecting hole inside, a connecting sleeve that communicates with the connecting hole is fixedly connected to one side of the connector, and a set screw is threaded to one side of the connecting sleeve.

[0010] Preferably, the length of the short groove is one-third of the length of the original groove.

[0011] Preferably, a transition portion is provided between the widened and thickened rod and the connector, and a rounded corner is provided between the transition portion and the widened and thickened rod.

[0012] Preferably, the inner diameter of the connecting sleeve is larger than the inner diameter of the connecting hole.

[0013] Preferably, one end of the set screw is fixedly connected to an internal hexagonal nut.

[0014] Preferably, an adjusting block is slidably connected inside the short slot, and an adjusting screw is threadedly connected inside the adjusting block. The adjusting screw rotatably extends to one end of the widened and thickened rod and is fixedly connected to an adjusting nut.

[0015] Preferably, one end of the widened and thickened rod is provided with a groove, and the adjusting nut is embedded in the groove.

[0016] Preferably, a guide groove is provided on the inner sidewall of the short hole groove, and the adjusting block is slidably connected to the guide groove.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, this utility model provides an internal scraping guide rod suitable for weld scars inside steel pipes, which has the following beneficial effects:

[0019] 1. By setting a wider and thicker rod body, this utility model can improve the overall strength of the guide rod. By setting a shorter short hole slot, the deformation and wear of the component can be reduced, and the stability can be increased.

[0020] 2. By setting a connecting sleeve and a set screw, when connecting the scalpel rod, the scalpel rod can be inserted into the connecting hole along the connecting sleeve. The connecting sleeve supports the scalpel rod and increases the contact area. Then, the internal hex nut is rotated to tighten the set screw, so that the set screw presses against the scalpel rod, thereby improving stability and improving the quality of internal scalpel treatment. Attached Figure Description

[0021] Figure 1 A schematic diagram of the existing internal scraping guide rod structure;

[0022] Figure 2 This is a schematic diagram of the overall structure of Embodiment 1 of the present utility model;

[0023] Figure 3This is a schematic diagram of the overall structure of Embodiment 2 of this utility model;

[0024] Figure 4 This is a schematic diagram of the adjustment block structure in Embodiment 2 of this utility model.

[0025] In the picture:

[0026] 1. Widened and thickened rod body; 11. Short hole slot; 111. Adjusting block; 112. Adjusting screw; 113. Adjusting nut; 114. Groove; 115. Guide groove; 12. Connector; 13. Connecting sleeve; 14. Set screw; 15. Transition part; 16. Socket head cap nut;

[0027] a1, original rod body; a2, original hole groove; a3, original connecting hole; a4, positioning block. Detailed Implementation

[0028] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0029] This utility model provides the following technical solution:

[0030] Example 1

[0031] Please see Figures 1-2 An internal scraping guide rod suitable for weld scars inside steel pipes includes a widened and thickened rod body 1. The widened and thickened rod body 1 has a short hole groove 11. The length of the short hole groove 11 is one-third of the length of the original hole groove a2. By setting the widened and thickened rod body 1, the overall strength of the guide rod can be improved. By setting the shorter short hole groove 11, the deformation and wear of the components can be reduced and the stability can be increased.

[0032] Reference Figure 2 The end of the widened and thickened rod body 1 is provided with a connector 12. The connector 12 has a connecting hole inside. A connecting sleeve 13 communicating with the connecting hole is fixedly connected to one side of the connector 12. The inner diameter of the connecting sleeve 13 is larger than the inner diameter of the connecting hole. A set screw 14 is threaded to one side of the connecting sleeve 13. An internal hex nut 16 is fixedly connected to one end of the set screw 14. By setting the connecting sleeve 13 and the set screw 14, when connecting the scraper rod, the scraper rod can be inserted into the connecting hole along the connecting sleeve 13. The connecting sleeve 13 supports the scraper rod and increases the contact area. Then, the internal hex nut 16 is rotated to tighten the set screw 14, so that the set screw 14 presses against the scraper rod, thereby improving stability and improving the quality of internal scraping.

[0033] Furthermore, a transition portion 15 is provided between the widened and thickened rod 1 and the connector 12, and a rounded corner is provided between the transition portion 15 and the widened and thickened rod 1. By providing the transition portion 15 with rounded corners, the stress at the connection between the widened and thickened rod 1 and the connector 12 can be dispersed, thereby improving the structural strength.

[0034] In practical use, the working principle of this embodiment is as follows:

[0035] By setting a widened and thickened rod body 1, the overall strength of the guide rod can be improved. By setting a shorter short hole slot 11, the deformation and wear of the components can be reduced, and the stability can be increased. When connecting the scraper rod, the scraper rod can be inserted into the connecting hole along the connecting sleeve 13. The connecting sleeve 13 supports the scraper rod and increases the contact area. Then, the internal hex nut 16 is rotated to tighten the set screw 14, so that the set screw 14 presses against the scraper rod, thereby improving stability and improving the quality of internal scraping.

[0036] Example 2

[0037] Please see Figures 3-4 The difference between this embodiment and Embodiment 1 is that an adjusting block 111 is slidably connected inside the short hole groove 11, and a guide groove 115 is provided on the inner side wall of the short hole groove 11. The adjusting block 111 is slidably connected to the guide groove 115, and an adjusting screw 112 is threadedly connected inside the adjusting block 111. The adjusting screw 112 extends rotatably to one end of the widened and thickened rod body 1 and is fixedly connected to an adjusting nut 113. By setting the adjusting block 111, the adjusting nut 113 can be rotated to drive the adjusting screw 112 to rotate, so that the adjusting screw 112 drives the adjusting block 111 to slide along the guide groove 115 in the short hole groove 11. Thus, the length of the short hole groove 11 can be adjusted according to the actual use, thereby enhancing adaptability.

[0038] Furthermore, a groove 114 is provided at one end of the widened and thickened rod body 1, and the adjusting nut 113 is embedded in the groove 114. By setting the groove 114, the adjusting nut 113 can be stored and protected, and the adjusting nut 113 can be prevented from protruding and being hit.

[0039] In practical use, the working principle of this second embodiment is as follows:

[0040] When faced with different installation requirements, the adjustable nut 113 can be rotated to drive the adjusting screw 112 to rotate, so that the adjusting screw 112 drives the adjusting block 111 to slide along the guide groove 115 in the short hole groove 11, thereby adjusting the length of the short hole groove 11 according to the actual use, enhancing adaptability.

[0041] In summary, the internal scraping guide rod suitable for weld scars inside steel pipes, by setting a widened and thickened rod body 1, a short hole groove 11, a connecting sleeve 13 and a set screw 14, can improve the overall strength of the guide rod, reduce component deformation and wear, increase stability, and improve the quality of internal scraping.

[0042] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. An internal scraping guide rod suitable for weld scars inside steel pipes, comprising a widened and thickened rod body (1), characterized in that: The widened and thickened rod body (1) is provided with short holes (11); The end of the widened and thickened rod (1) is provided with a connector (12), the connector (12) has a connecting hole inside, a connecting sleeve (13) communicating with the connecting hole is fixedly connected to one side of the connector (12), and a set screw (14) is threadedly connected to one side of the connecting sleeve (13).

2. The guide rod for internal scraping of weld scars in steel pipes according to claim 1, characterized in that: The length of the short groove (11) is one-third of the length of the original groove (a2).

3. The internal scraping guide rod for weld scars inside steel pipes according to claim 1, characterized in that: A transition section (15) is provided between the widened and thickened rod body (1) and the connector (12), and a rounded corner is provided between the transition section (15) and the widened and thickened rod body (1).

4. The guide rod for internal scraping of weld scars in steel pipes according to claim 3, characterized in that: The inner diameter of the connecting sleeve (13) is larger than the inner diameter of the connecting hole.

5. The internal scraping guide rod for weld scars inside steel pipes according to claim 1, characterized in that: One end of the set screw (14) is fixedly connected to an internal hexagonal nut (16).

6. The internal scraping guide rod for weld scars inside steel pipes according to claim 1, characterized in that: An adjusting block (111) is slidably connected inside the short hole groove (11), and an adjusting screw (112) is threadedly connected inside the adjusting block (111). The adjusting screw (112) extends rotatably to one end of the widened and thickened rod body (1) and is fixedly connected to an adjusting nut (113).

7. The internal scraping guide rod for weld scars inside steel pipes according to claim 6, characterized in that: One end of the widened and thickened rod (1) is provided with a groove (114), and the adjusting nut (113) is embedded in the groove (114).

8. The internal scraping guide rod for weld scars inside steel pipes according to claim 6, characterized in that: The inner wall of the short hole groove (11) is provided with a guide groove (115), and the adjusting block (111) is slidably connected to the guide groove (115).

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