A kind of auxiliary positioning device for low manganese carbon steel pipe flange installation

Abstract

The utility model discloses a kind of auxiliary positioning devices for low manganese carbon steel pipe flange installation, including base, the front and rear ends of one side of the upper end of the base are fixedly provided with two fixed seats, first screw rod is provided between the fixed seat, first screw rod is rotatably connected with the fixed seat, the upper end fixedly provided with slide rail below first screw rod of the base, the outside of first screw rod is sleeved and is provided with moving frame, moving frame and slide rail slide limit, the inside of the front and rear ends of moving frame top is provided with second screw rod, second screw rod is rotatably connected with moving frame, the inside fixedly provided with limit rod of moving frame at the two sides of second screw rod, the outside of second screw rod and limit rod is sleeved and is provided with mounting seat, one end fixedly provided with hydraulic telescopic device of mounting seat close to base center position, this structure solves the problem that flange position adjustment is not enough convenient, and the fixing effect of flange is not enough good.

Description

Technical Field

[0001] This utility model relates to the field of pipeline connection technology, specifically to an auxiliary positioning device for installing low-manganese carbon steel pipe flanges. Background Technology

[0002] Low-manganese carbon steel is widely used in pipelines, pressure vessels, and structural components due to its good weldability and low cost. To ensure the coaxiality, perpendicularity, and spacing accuracy of flanges and connecting pipes, auxiliary positioning devices are required for the installation of connecting pipes and flanges. These auxiliary positioning devices typically consist of a positioning base, flange positioning components, a measurement and calibration system, and auxiliary support and clamping mechanisms. They are mainly used in the petrochemical, power, and shipbuilding industries.

[0003] For example, Chinese patent CN211840826U, entitled "A Device for Butt Welding Flanges and Pipes," includes a support, a positioning and locking device, a height adjustment device, and a height control pipe. The positioning and locking device includes at least one set of positioning and locking components, each including a support rod and a positioning and locking element. The support rod is mounted on the support. The positioning and locking element is mounted on the support rod and is used to position and lock the flange to be welded. The height adjustment device includes a base plate, a vertical rod, and an adjusting element. The base plate is mounted on the support and is used to support the pipe to be welded. One end of the vertical rod is mounted on the base plate. The adjusting element is mounted on the base plate.

[0004] While the existing technologies described above can achieve the connection between the pipe and the flange, in practical use, on the one hand, the flange position adjustment is not convenient enough. The flange is usually adjusted by rotating bolts, which requires the assistance of operators for each adjustment, thus reducing the efficiency of flange adjustment. On the other hand, the flange fixing effect is not good enough. The flange is usually placed directly on the upper end of the pipe, which makes it easy for the flange to shift on the upper end of the pipe under external force interference, thus affecting the welding accuracy of the flange. Therefore, it does not meet the current requirements. In this regard, we propose an auxiliary positioning device for the installation of low manganese carbon steel pipe flanges. Utility Model Content

[0005] The purpose of this invention is to provide an auxiliary positioning device for installing low-manganese carbon steel pipe flanges, so as to solve the problems mentioned in the background art, such as inconvenient flange position adjustment and poor flange fixing effect.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary positioning device for installing low-manganese carbon steel pipe flanges, comprising a base, two fixed seats fixedly installed at the front and rear ends of one side of the upper end of the base, a first lead screw installed between the fixed seats, the first lead screw being rotatably connected to the fixed seats, a slide rail fixedly installed at the upper end of the base below the first lead screw, a movable frame sleeved on the outside of the first lead screw, the movable frame slidingly limiting the slide rail, a second lead screw installed inside the front and rear ends of the movable frame, the second lead screw being rotatably connected to the movable frame, limit rods fixedly installed inside the movable frame on both sides of the second lead screw, a mounting seat sleeved on the outside of the second lead screw and the limit rod, and a hydraulic telescopic device fixedly installed at the end of the mounting seat near the center of the base.

[0007] Preferably, a first servo motor is fixedly installed on one side of the fixed base, the output shaft of the first servo motor extends to the other side of the fixed base and is fixedly connected to a first lead screw, and a second servo motor is fixedly installed at the upper end of the outer side of the movable frame, the output shaft of the second servo motor extends into the interior of the movable frame and is fixedly connected to a second lead screw.

[0008] Preferably, a fixed frame is fixedly provided at one end of the telescopic end of the hydraulic telescopic device, a flange is provided at the center position inside the fixed frame, and three second threaded holes are provided inside the side walls on both sides of the fixed frame. The second threaded holes are through-hole structures.

[0009] Preferably, a second bolt is provided outside the fixed frame at the opening of the second threaded hole. One end of the second bolt extends into the interior of the fixed frame through the second threaded hole. A clamping plate is provided at one end of the second bolt. The clamping plate is rotatably connected to the second bolt. The clamping plate slides and limits the movement of the inner wall of the fixed frame. The clamping plate contacts the flange.

[0010] Preferably, a placement platform is fixedly provided on the other side of the upper end of the base, and a tube is provided at the center of the upper end of the placement platform. The tube corresponds to the flange position, and arc-shaped extrusion plates are provided on both sides of the upper end of the tube, which are in contact with the tube.

[0011] Preferably, connecting plates are fixedly provided at both the front and rear ends of the arc-shaped extrusion plate. First threaded holes are provided inside the connecting plate and inside the placement platform. The first threaded holes on the connecting plate correspond to the positions of the first threaded holes on the placement platform. A first bolt is provided at the upper end of the connecting plate at the opening position of the first threaded hole. The lower end of the first bolt extends into the interior of the placement platform through the first threaded hole.

[0012] Preferably, a control panel is fixedly installed at the front end of the outer side of the placement platform, and the control panel is electrically connected to the first servo motor, the hydraulic telescopic device, and the second servo motor.

[0013] Compared with the prior art, the beneficial effects of this utility model are: (1) This utility model can adjust the flange position by using a movable frame and a mounting base. Before welding the pipe body and the flange, the pipe body is fixed on the placement platform. At this time, the second servo motor is turned on by the control panel, so that the output shaft of the second servo motor drives the second lead screw to rotate. The second lead screw drives the mounting base to move on the movable frame. At the same time, the hydraulic telescopic device fixedly connected to the mounting base moves together until the mounting base is moved to a suitable height. At this time, the flange is fixed. Then, the first servo motor is turned on by the control panel, so that the output shaft of the first servo motor drives the first lead screw to rotate. The first lead screw moves the movable frame to a suitable position. At the same time, the flange contacts one side of the pipe body, thereby improving the convenience of flange position adjustment. At the same time, the flange position can be adjusted by the lead screw, which can improve the accuracy of flange position movement.

[0014] (2) The present invention can clamp and fix the flange by means of the second bolt and the clamping plate. Before welding the pipe body and the flange, the fixing frame has been adjusted to a suitable position according to the opening of the pipe body. At this time, the operator places the flange in the fixing frame and the lower end of the flange contacts the fixing frame. At the same time, the flange touches the clamping plate lightly. Then the operator rotates the second bolt so that the second bolt moves inside the second threaded hole through the thread. At the same time, the clamping plate moves towards the flange under the action of the second bolt until the clamping plate is moved to a suitable position. At this time, the clamping plate squeezes the flange and fixes it inside the fixing frame, thereby avoiding the flange from shaking during the welding process.

[0015] (3) This utility model can fix arc extrusion plates of different sizes through the connecting plate and the first bolt. When fixing the tube, first place the tube at the center of the placement platform and adjust the extension length of the tube. At this time, the operator selects an arc extrusion plate of appropriate size and places the arc extrusion plate on the upper end of the tube. At the same time, the first threaded hole on the connecting plate that is fixedly connected to the arc extrusion plate corresponds to the position of the first threaded hole on the placement platform. Then, the first bolt is aligned with the opening of the first threaded hole and inserted into the first threaded hole and rotated so that the lower end of the first bolt enters the interior of the placement platform through the first threaded hole, thereby improving the adaptability of the device to tubes of different sizes. Attached Figure Description

[0016] Figure 1 This is a three-dimensional view of the overall structure of this utility model; Figure 2 This is a front view of the internal structure of this utility model; Figure 3 This is a side view of the internal structure of this utility model; Figure 4 For the present utility model Figure 1 Enlarged view of a portion of region A in the middle.

[0017] In the diagram: 1. Base; 2. Placement platform; 3. Connecting plate; 4. Arc-shaped extrusion plate; 5. Tube body; 6. First bolt; 7. Control panel; 8. Fixed seat; 9. Slide rail; 10. Moving frame; 11. First servo motor; 12. First lead screw; 13. Second lead screw; 14. Limiting rod; 15. Mounting seat; 16. Hydraulic telescopic device; 17. Flange; 18. Fixed frame; 19. Second bolt; 20. Clamping plate; 21. First threaded hole; 22. Second threaded hole; 23. Second servo motor. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Please see Figure 1-4 An embodiment of this utility model is provided: an auxiliary positioning device for installing low manganese carbon steel pipe flanges, including a base 1, two fixed seats 8 are fixedly installed at the front and rear ends of one side of the upper end of the base 1, and a control panel 7 is fixedly installed at the front end of the outer side of the placement platform 2. The control panel 7 is electrically connected to the first servo motor 11, the hydraulic telescopic device 16 and the second servo motor 23.

[0020] Please see Figure 1 and Figure 2 A first lead screw 12 is provided between the fixed bases 8 and the fixed base 8. The first lead screw 12 is rotatably connected to the fixed base 8. A slide rail 9 is fixedly provided at the upper end of the base 1 below the first lead screw 12. A movable frame 10 is sleeved on the outside of the first lead screw 12. The movable frame 10 slides and is limited by the slide rail 9. A second lead screw 13 is provided inside the front and rear ends of the movable frame 10. The second lead screw 13 is rotatably connected to the movable frame 10. Limiting rods 14 are fixedly provided inside the movable frame 10 on both sides of the second lead screw 13. The second lead screw 13 and the limiting rods 14 are sleeved on the outside of the movable frame 10. Mounting base 15, with a hydraulic telescopic device 16 fixedly installed at one end of the mounting base 1 near the center position of the base 1. A first servo motor 11 is fixedly installed on one side of the outside of the fixed base 8. The output shaft of the first servo motor 11 extends to the other side of the fixed base 8 and is fixedly connected to the first lead screw 12. A second servo motor 23 is fixedly installed at the upper end of the outside of the moving frame 10. The output shaft of the second servo motor 23 extends into the inside of the moving frame 10 and is fixedly connected to the second lead screw 13, so as to facilitate the adjustment of the position of the flange 17 by means of the first lead screw 12 and the second lead screw 13.

[0021] Please see Figure 1 , Figure 2 and Figure 4A fixed frame 18 is fixedly installed at one end of the telescopic end of the hydraulic telescopic device 16. A flange 17 is installed at the center of the fixed frame 18. Three second threaded holes 22 are provided inside the side walls of both sides of the fixed frame 18. The second threaded holes 22 are through-hole structures. A second bolt 19 is installed outside the opening of the second threaded holes 22 on the fixed frame 18. One end of the second bolt 19 extends into the interior of the fixed frame 18 through the second threaded holes 22. A clamping plate 20 is provided at one end of the second bolt 19. The clamping plate 20 is rotatably connected to the second bolt 19. The clamping plate 20 slides and limits the movement of the inner wall of the fixed frame 18. The clamping plate 20 contacts the flange 17, which facilitates clamping and fixing of the flange 17 through the clamping plate 20.

[0022] Please see Figure 1 and Figure 3 A placement platform 2 is fixedly installed on the other side of the upper end of the base 1. A tube 5 is installed at the center of the upper end of the placement platform 2. The tube 5 corresponds to the flange 17. Arc-shaped extrusion plates 4 are installed on both sides of the upper end of the tube 5. The arc-shaped extrusion plates 4 are in contact with the tube 5. Connecting plates 3 are fixedly installed at the front and rear ends of the outer side of the arc-shaped extrusion plates 4. The inner side of the connecting plate 3 and the inner side of the placement platform 2 are provided with first threaded holes 21. The first threaded holes 21 on the connecting plate 3 correspond to the first threaded holes 21 on the placement platform 2. A first bolt 6 is installed at the upper end of the connecting plate 3 at the opening of the first threaded hole 21. The lower end of the first bolt 6 extends into the interior of the placement platform 2 through the first threaded hole 21, so as to facilitate the fixing of the arc-shaped extrusion plate 4 by the first bolt 6.

[0023] Working principle: In use, first place the tube body 5 at the center of the placement platform 2 and adjust the extension length of the tube body 5. At this time, the operator selects an arc-shaped extrusion plate 4 of appropriate size and places the arc-shaped extrusion plate 4 on the upper end of the tube body 5. Then, align the first bolt 6 with the opening of the first threaded hole 21 and insert it into the first threaded hole 21 and rotate it so that the lower end of the first bolt 6 enters the interior of the placement platform 2 through the first threaded hole 21. At this time, the second servo motor 23 is turned on through the control panel 7, so that the output shaft of the second servo motor 23 drives the second lead screw 13 to rotate. The second lead screw 13 drives the mounting base 15 to move on the moving frame 10. At the same time, the hydraulic telescopic device 16 fixedly connected to the mounting base 15 moves together until the mounting base is fully extended. 15. Move to a suitable height. At this time, the operator places the flange 17 in the fixed frame 18, with the lower end of the flange 17 in contact with the fixed frame 18. At the same time, the flange 17 lightly touches the clamping plate 20. Then, the operator rotates the second bolt 19, so that the second bolt 19 moves inside the second threaded hole 22 through the thread. At the same time, the clamping plate 20 moves towards the flange 17 under the action of the second bolt 19. At this time, the clamping plate 20 squeezes the flange 17 and fixes it inside the fixed frame 18. Then, the first servo motor 11 is turned on through the control panel 7, so that the output shaft of the first servo motor 11 drives the first lead screw 12 to rotate. The first lead screw 12 moves the moving frame 10 to a suitable position, and at the same time, the flange 17 contacts one side of the pipe body 5.

[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An auxiliary positioning device for installing low-manganese carbon steel pipe flanges, comprising a base (1), characterized in that: Two fixed seats (8) are fixedly installed at the front and rear ends of one side of the upper end of the base (1). A first screw (12) is installed between the fixed seats (8). The first screw (12) is rotatably connected to the fixed seat (8). A slide rail (9) is fixedly installed at the upper end of the base (1) below the first screw (12). A movable frame (10) is sleeved on the outside of the first screw (12). The movable frame (10) slides and is limited by the slide rail (9). A second screw (13) is installed inside the front and rear ends of the movable frame (10). The second screw (13) is rotatably connected to the movable frame (10). Limit rods (14) are fixedly installed inside the movable frame (10) on both sides of the second screw (13). An installation seat (15) is sleeved on the outside of the second screw (13) and the limit rod (14). A hydraulic telescopic device (16) is fixedly installed at one end of the installation seat (15) near the center of the base (1).

2. The auxiliary positioning device for installing low-manganese carbon steel pipe flanges according to claim 1, characterized in that: A first servo motor (11) is fixedly installed on one side of the outside of the fixed base (8). The output shaft of the first servo motor (11) extends to the other side of the fixed base (8) and is fixedly connected to the first lead screw (12). A second servo motor (23) is fixedly installed at the upper end of the outside of the moving frame (10). The output shaft of the second servo motor (23) extends to the inside of the moving frame (10) and is fixedly connected to the second lead screw (13).

3. The auxiliary positioning device for installing low-manganese carbon steel pipe flanges according to claim 2, characterized in that: The hydraulic telescopic device (16) has a fixed frame (18) fixedly installed at one end of its telescopic end. A flange (17) is installed at the center of the fixed frame (18). Three second threaded holes (22) are installed inside the side walls of both sides of the fixed frame (18). The second threaded holes (22) are through-hole structures.

4. The auxiliary positioning device for installing low-manganese carbon steel pipe flanges according to claim 3, characterized in that: The fixing frame (18) is provided with a second bolt (19) outside the opening of the second threaded hole (22). One end of the second bolt (19) extends into the interior of the fixing frame (18) through the second threaded hole (22). A clamping plate (20) is provided at one end of the second bolt (19). The clamping plate (20) is rotatably connected to the second bolt (19). The clamping plate (20) slides and is limited to the inner wall of the fixing frame (18). The clamping plate (20) contacts the flange (17).

5. The auxiliary positioning device for installing low-manganese carbon steel pipe flanges according to claim 4, characterized in that: A placement platform (2) is fixedly installed on the other side of the upper end of the base (1). A tube (5) is installed at the center of the upper end of the placement platform (2). The tube (5) corresponds to the flange (17). Arc-shaped extrusion plates (4) are installed on both sides of the upper end of the tube (5). The arc-shaped extrusion plates (4) are in contact with the tube (5).

6. The auxiliary positioning device for installing low-manganese carbon steel pipe flanges according to claim 5, characterized in that: The front and rear ends of the arc-shaped extrusion plate (4) are fixedly provided with connecting plates (3). The interior of the connecting plate (3) and the interior of the placement platform (2) are provided with first threaded holes (21). The first threaded holes (21) on the connecting plate (3) correspond to the first threaded holes (21) on the placement platform (2). The upper end of the connecting plate (3) at the opening position of the first threaded hole (21) is provided with a first bolt (6). The lower end of the first bolt (6) extends into the interior of the placement platform (2) through the first threaded hole (21).

7. The auxiliary positioning device for installing low-manganese carbon steel pipe flanges according to claim 6, characterized in that: A control panel (7) is fixedly installed at the front end of the outer side of the placement platform (2). The control panel (7) is electrically connected to the first servo motor (11), the hydraulic telescopic device (16), and the second servo motor (23).

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