A device for centering a pipe and a method of operating the same

Abstract

The application discloses a device suitable for pipeline center positioning and an operation method thereof, and belongs to the technical field of pipeline center positioning. The device comprises an adjusting mechanism and a center target seat arranged on the adjusting mechanism, and the adjusting mechanism is composed of an X-axis adjusting mechanism, a Y-axis adjusting mechanism and a Z-axis adjusting mechanism. The X-axis adjusting mechanism comprises an X-axis sliding block, an X-axis sliding block base, an X-axis adjusting screw rod and a plurality of X-axis guide rods. The Y-axis adjusting mechanism comprises a Y-axis sliding block, a Y-axis sliding block base, a Y-axis adjusting screw rod and a plurality of Y-axis guide rods. The Z-axis adjusting mechanism comprises a Z-axis sliding block, a Z-axis sliding block base and a Z-axis adjusting screw rod. The outer edge of the Z-axis sliding block base is provided with a plurality of outwardly extending supporting legs. The device changes the previous center positioning mode of repeatedly measuring and fitting, and is designed to directly measure and monitor by using a special pipeline center positioning tool, so that the measurement efficiency is improved, the manual measurement error is reduced, the data accuracy is improved, and the problems of low efficiency and poor applicability of pipeline center installation positioning and process monitoring are solved.

Description

Technical Field

[0001] This invention relates to the field of positioning devices, and more particularly to a device and its operating method suitable for center positioning of pipelines. Background Technology

[0002] During the construction of nuclear power plants, many critical nuclear-grade pipelines require strict installation precision. During installation or welding, it is necessary to measure the coordinates of the pipe opening center for installation positioning or real-time monitoring. This technology requires the use of laser measuring equipment to measure the three-dimensional data of multiple points on the inner or outer diameter of the pipe opening, and then perform fitting calculations to obtain the three-dimensional coordinates of the pipe opening center position. It is impossible to directly locate the pipe opening center. As a result, if the pipe opening center position needs to be monitored in real time, it is necessary to continuously measure the points on the edge of the pipe opening. This poses a high risk of human error and has poor applicability, seriously affecting the positioning efficiency and measurement accuracy of the pipeline center. Summary of the Invention

[0003] This invention addresses the problems encountered when using technology to locate or monitor the center of a pipeline outlet in real time. Therefore, the purpose of this invention is to provide a more practical and easier-to-operate device for locating the center of pipelines. A target ball is connected to the positioning device, and the position of the target ball on the x, y, and z axes is determined by a slider. This allows for easy monitoring and measurement of the pipeline center, while reducing the workload of operators.

[0004] To achieve the above objectives, the present invention proposes:

[0005] A device for center positioning of pipelines includes an adjustment mechanism and a center target mounted on the adjustment mechanism. The adjustment mechanism consists of an X-axis adjustment mechanism, a Y-axis adjustment mechanism, and a Z-axis adjustment mechanism. The X-axis adjustment mechanism includes an X-axis slider and an X-axis slider base. The central target is fixedly mounted on the X-axis slider. The X-axis slider base has an X-axis movable groove. The X-axis slider is mounted on the X-axis slider base, meaning the X-axis slider is movably connected to the X-axis movable groove. The Y-axis adjustment mechanism includes a Y-axis slider and a Y-axis slider base. The Y-axis slider base has a Y-axis movable groove. The Y-axis slider is mounted on the Y-axis slider base, meaning the Y-axis slider is movably connected to the Y-axis movable groove. The X-axis slider base is fixedly mounted on the Y-axis slider. The Z-axis adjustment mechanism includes a Z-axis slider and a Z-axis slider base. The Z-axis slider base has a Z-axis movable groove. The Z-axis slider is mounted on the Z-axis slider base, meaning the Z-axis slider is movably connected to the Z-axis movable groove. The Y-axis slider base is fixedly mounted on the Z-axis slider. The Z-axis slider and the Z-axis movable groove have the same shape.

[0006] Preferably, the X-axis adjustment mechanism further includes an X-axis adjustment screw and several X-axis guide rods. The X-axis adjustment screw and X-axis guide rods are installed in the X-axis slider, and both ends of the X-axis adjustment screw and X-axis guide rods are connected to the X-axis slider base. The X-axis adjustment screw is movably connected to the X-axis slider base, and the X-axis guide rods are fixedly connected to the X-axis slider base. One end of the X-axis adjustment screw is fixedly provided with an X-axis adjustment knob. The X-axis adjustment screw is used to adjust the relative position of the X-axis slider.

[0007] Preferably, the Y-axis adjustment mechanism further includes a Y-axis adjustment screw and several Y-axis guide rods. The Y-axis adjustment screw and Y-axis guide rods are installed in the Y-axis slider, and both ends of the Y-axis adjustment screw and Y-axis guide rods are connected to the Y-axis slider base. The Y-axis adjustment screw is movably connected to the Y-axis slider base, and the Y-axis guide rods are fixedly connected to the Y-axis slider base. A Y-axis adjustment knob is fixedly provided at one end of the Y-axis adjustment screw, and the Y-axis adjustment screw is used to adjust the relative position of the Y-axis slider.

[0008] Preferably, the X-axis adjustment mechanism and the Y-axis adjustment mechanism have the same structure, similar to the working principle of the linear module, and the X-axis adjustment mechanism and the Y-axis adjustment mechanism are at a 90° angle.

[0009] Preferably, the Z-axis adjustment mechanism further includes a Z-axis adjustment screw, one end of which is provided with a Z-axis adjustment knob, and the other end is connected to the Z-axis slider. The Z-axis adjustment screw is used to adjust the relative position of the Z-axis slider.

[0010] Preferably, the Z-axis slider base is provided with fixing plates on both sides, and the Z-axis adjustment knob passes through one of the fixing plates and is connected to the Z-axis slider.

[0011] Furthermore, the outer edge of the Z-axis slider base is provided with several outwardly extending support legs. The support legs are fully threaded screws, and their length can be adjusted according to the measured pipe inner diameter data. The outer edge of the Z-axis slider base is provided with several screw holes that cooperate with the support legs. The support legs are movably connected in the screw holes through the threaded engagement.

[0012] Preferably, a protective sleeve is fixedly provided at the outer end of each of the support legs, and the included angle between any two adjacent support legs is 60°-120°.

[0013] Preferably, the protective sleeve is made of rubber to prevent scratching the inner wall of the pipe being tested.

[0014] Preferably, the positioning device further includes several locking nuts, which are disposed on the support leg, specifically at the connection between the support leg and the protective sleeve or the support leg and the Z-axis slider base, for locking the support leg.

[0015] Furthermore, at least two locking bolts are provided on the outer side of the Z-axis slider base for locking the Z-axis slider.

[0016] Preferably, the positioning device has an overall cross-shaped structure.

[0017] An operating method for a device suitable for center positioning of pipelines includes the following steps:

[0018] S1. Use laser measuring equipment to measure the circumferential points of the pipeline for the first time, and fit the coordinates of the pipeline center;

[0019] S2. Install the positioning device at the pipe opening to be tested, adjust the length of the support leg to support the device, and then use the lock nut to lock the support leg.

[0020] S3. Using the real-time monitoring function of the laser measurement equipment, place the target ball on the center target base, rotate the X, Y, and Z axis adjustment knobs to make the real-time monitoring data as close as possible to the initial fitted center coordinate data, and then use the locking bolts to lock it.

[0021] S4. When it is necessary to measure or monitor again, simply place the target ball on the central target base to directly measure the data, without having to measure the edge point data multiple times for fitting.

[0022] The beneficial effects of this invention are: it changes the previous method of center positioning by repeated measurement and fitting, and designs a special pipeline center positioning fixture for direct measurement and monitoring, thereby improving measurement efficiency, reducing manual measurement errors, improving data accuracy, and solving the problems of low efficiency and poor applicability in pipeline center installation positioning and process monitoring.

[0023] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is the overall front view of the invention;

[0026] Figure 3 This is an overall rear view of the invention;

[0027] Figure 4 This is a schematic diagram of the X-axis adjustment mechanism and its structure according to the present invention;

[0028] Figure 5 This is a schematic diagram of the Z-axis adjustment mechanism of the present invention;

[0029] Figure 6 This is an exploded view of the Z-axis adjustment mechanism of the present invention;

[0030] Figure 7This is a diagram showing the usage status of the present invention.

[0031] In the diagram: 1. Adjustment mechanism; 2. Center target base; 3. X-axis adjustment mechanism; 31. X-axis slider; 32. X-axis slider base; 33. X-axis adjustment knob; 34. X-axis adjustment screw; 35. X-axis guide rod; 36. X-axis movable slot; 4. Y-axis adjustment mechanism; 41. Y-axis slider; 42. Y-axis slider base; 43. Y-axis adjustment knob; 44. Y-axis adjustment screw; 45. Y-axis guide rod; 46. Y-axis movable slot; 5. Z-axis adjustment mechanism; 51. Z-axis slider; 52. Z-axis slider base; 53. Z-axis adjustment knob; 54. Z-axis adjustment screw; 55. Z-axis movable slot; 7. Support leg; 8. Locking bolt; 9. Fixing plate; 10. Protective sleeve; 11. Locking nut; 12. Screw hole. Detailed Implementation

[0032] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0033] like Figure 1-7 As shown, a device suitable for center positioning of pipelines includes an adjustment mechanism 1 and a center target 2 disposed on the adjustment mechanism 1. The adjustment mechanism 1 consists of an X-axis adjustment mechanism 3, a Y-axis adjustment mechanism 4 and a Z-axis adjustment mechanism 5.

[0034] The X-axis adjustment mechanism 3 includes an X-axis slider 31 and an X-axis slider base 32. The central target 2 is fixedly mounted on the X-axis slider 31. The central target 2 can be fixed on the X-axis slider 31 by glue, bolts, nuts, or slots and blocks. The X-axis slider base 32 is provided with an X-axis movable groove 36. The X-axis slider 31 is mounted on the X-axis slider base 32, that is, the X-axis slider 31 is movably connected in the X-axis movable groove 36. Furthermore, the X-axis adjustment mechanism 3 also includes an X-axis adjusting screw 34 for adjusting the relative position of the X-axis slider 31 and two X-axis guide rods 35 for guiding the movement of the X-axis slider 31. One end of the X-axis adjusting screw 34 is fixedly provided with an X-axis adjusting knob 33 for rotating the X-axis adjusting screw 34. Specifically, the X-axis adjusting screw 34 and the X-axis guide rod 35 are installed in the X-axis slider 31. The X-axis slider 31 has a connecting hole for use with the X-axis adjusting screw 34 and the X-axis guide rod 35. The two ends of the X-axis adjusting screw 34 and the X-axis guide rod 35 are connected to the X-axis slider base 32. The X-axis adjusting screw 34 is movably connected to the X-axis slider base 32, that is, the X-axis adjusting screw 34 can rotate in the X-axis slider base 32. The X-axis guide rod is fixedly connected to the X-axis slider base. Furthermore, by rotating the X-axis adjusting knob 33, the X-axis adjusting screw 34 can be rotated, thereby causing the X-axis slider 31 to move in the X-axis movable groove 36.

[0035] The Y-axis adjustment mechanism 4 includes a Y-axis slider 41 and a Y-axis slider base 42. The Y-axis slider base 42 is provided with a Y-axis movable groove 46. The Y-axis slider 41 is disposed on the Y-axis slider base 42, that is, the Y-axis slider 41 is movably connected in the Y-axis movable groove 6. Further, the Y-axis adjustment mechanism 4 also includes a Y-axis adjustment screw 44 for adjusting the relative position of the Y-axis slider 41 and two Y-axis guide rods 45 for guiding the movement of the Y-axis slider 41. One end of the Y-axis adjustment screw 44 is fixedly provided with a Y-axis adjustment knob 43 for rotating the Y-axis adjustment screw 44. Specifically, the Y-axis adjusting screw 44 and the Y-axis guide rod 45 are installed in the Y-axis slider 41. The Y-axis slider 41 has a connecting hole for use with the Y-axis adjusting screw 44 and the Y-axis guide rod 45. The two ends of the Y-axis adjusting screw 44 and the Y-axis guide rod 45 are connected to the Y-axis slider base 42. The Y-axis adjusting screw 44 is movably connected to the Y-axis slider base 42, that is, the Y-axis adjusting screw 44 can rotate in the Y-axis slider base 42. The Y-axis guide rod is fixedly connected to the Y-axis slider base. Furthermore, by rotating the Y-axis adjusting knob 43, the Y-axis adjusting screw 44 can be rotated, thereby causing the Y-axis slider 41 to move in the Y-axis movable groove 46.

[0036] The X-axis adjustment mechanism 3 and the Y-axis adjustment mechanism 4 have the same structure and work on a similar principle to the linear module. The X-axis adjustment mechanism 3 and the Y-axis adjustment mechanism 4 form a 90° angle. Specifically, the X-axis slider base 32 is fixedly mounted on the Y-axis slider 41. Corresponding locations on the X-axis slider base 32 and the Y-axis slider 41 are provided with connecting holes. The X-axis slider base 32 is fixedly connected to the Y-axis slider 41 by bolts and the connection holes.

[0037] The Z-axis adjustment mechanism 5 includes a Z-axis slider 51 and a Z-axis slider base 52. The Z-axis slider base 52 is provided with a Z-axis movable groove 55. The Z-axis slider 51 is disposed on the Z-axis slider base 52, that is, the Z-axis slider 51 is movably connected in the Z-axis movable groove 55. The Y-axis slider base 42 is fixedly disposed on the Z-axis slider 51. The Z-axis slider 51 has the same shape as the Z-axis movable groove 55, which facilitates the sliding of the Z-axis slider 51 on the Z-axis slider base 52. The Y-axis slider base 42 is provided with a connecting hole corresponding to the Z-axis slider 51. The Y-axis slider base 42 is fixedly connected to the Z-axis slider 51 by bolts and the connecting hole. Furthermore, the Z-axis adjustment mechanism 5 also includes a Z-axis adjustment screw 54 for adjusting the relative position of the Z-axis slider 51. One end of the Z-axis adjustment screw 54 is fixedly provided with a Y-axis adjustment knob 53 for rotating the Z-axis adjustment screw 54, and the other end is connected to the Z-axis slider 51 for adjusting the relative position of the Z-axis slider 51.

[0038] The Z-axis slider base 52 has fixing plates 9 on both sides. Two fixing plates 9 are fixedly installed on the front of the Z-axis slider base 52, and one fixing plate 9 is fixedly installed on the back of the Z-axis slider base 52. All three fixing plates 9 are fixed to the Z-axis slider base 52 by bolts. The Z-axis adjustment knob 53 passes through the fixing plate 9 located on the back of the Z-axis slider base 52 and is connected to the Z-axis slider 51. Two locking bolts 8 are provided on the outer side of the Z-axis slider base 52. Two threaded holes are provided on the side wall of the Z-axis slider base 52 to cooperate with the locking bolts 8 and penetrate the side wall of the Z-axis slider base 52. The locking bolts 8 are movably connected to the threaded holes to lock the Z-axis slider 51.

[0039] Furthermore, the outer edge of the Z-axis slider base 52 is provided with four outwardly extending support legs 7, and the included angle between any two adjacent support legs 7 is 90°. The support legs 7 are fully threaded screws. The outer edge of the Z-axis slider base 52 is provided with a number of screw holes 12 that cooperate with the support legs 7. The support legs 7 are movably connected in the screw holes 12 through the threaded engagement. The length of the support legs 7 can be adjusted according to the measured inner diameter data of the pipe.

[0040] Furthermore, a protective sleeve 10 is fixedly provided at the outer end of each of the support legs 7. The protective sleeve 10 is made of rubber to prevent scratching the inner wall of the pipe being measured.

[0041] Furthermore, the positioning device also includes several locking nuts 11, which are disposed on the support leg 7, specifically at the connection between the support leg 7 and the protective sleeve 10 or the support leg 7 and the Z-axis slider base 52, for locking the support leg 7.

[0042] Furthermore, the positioning device is in the shape of a cross; alignment lines are provided on the X-axis slider 41 and Z-axis slider 51, and corresponding scales are provided on the X-axis slider base 42 and Z-axis slider base 52. The adjustment displacement can be determined by the alignment lines and scales.

[0043] This invention relates to an operating method of a device suitable for center positioning of pipelines, comprising the following steps:

[0044] S1. Use laser measuring equipment to measure the circumferential points of the pipeline for the first time, and fit the coordinates of the pipeline center.

[0045] S2. Install the positioning device at the pipe opening to be tested. After adjusting the length of the support leg 7 to secure the device, use the locking nut 11 to lock the support leg 7. Specifically, after installing the positioning device at the pipe opening, adjust the relative length of the support leg 7 by rotating it, so that it gradually extends (expands outward) until it hits the pipe wall. Then, use the locking nut 11 to lock the support leg 7 to prevent it from shrinking.

[0046] S3. Using the real-time monitoring function of the laser measurement equipment, place the target ball on the central target base 2, and rotate the X, Y, and Z axis adjustment knobs to make the real-time monitoring data as close as possible to the initial fitted center coordinate data, and then lock it with the locking bolt 8. Specifically, rotating the X-axis adjustment knob 33 can drive the X-axis adjustment screw 34 to rotate, thereby moving the Y-axis slider 31 in the Z-axis movable groove 36, thus adjusting the relative position of the target ball and the central target base 2 on the X-axis; rotating the Y-axis adjustment knob 43 can drive the X-axis adjustment screw 44 to rotate, thereby moving the Y-axis slider 41 in the Z-axis movable groove 46, thus adjusting the relative position of the target ball and the central target base 2 on the Y-axis; rotating the Z-axis adjustment knob 53 can drive the Z-axis adjustment screw 54 to rotate, thereby moving the Z-axis slider 51 in the Z-axis movable groove 55, thus adjusting the relative position of the target ball and the central target base 2 on the Z-axis. After adjustment, lock the Z-axis slider 51 with the locking bolt 8.

[0047] S4. When it is necessary to measure or monitor again, simply place the target ball on the central target 2 and measure the data directly. There is no need to measure the edge point data multiple times for fitting.

[0048] As can be seen from the above technical solution, the positioning device described in this invention can easily complete the monitoring and measurement of the pipeline center, while reducing the labor intensity of the operators.

[0049] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device suitable for center positioning of pipelines, characterized in that, The device includes an adjustment mechanism and a central target seat mounted on the adjustment mechanism. The adjustment mechanism comprises an X-axis adjustment mechanism, a Y-axis adjustment mechanism, and a Z-axis adjustment mechanism. The X-axis adjustment mechanism includes an X-axis slider, an X-axis slider base, an X-axis adjusting screw, and several X-axis guide rods. The Y-axis adjustment mechanism includes a Y-axis slider, a Y-axis slider base, a Y-axis adjusting screw, and several Y-axis guide rods. The Z-axis adjustment mechanism includes a Z-axis slider, a Z-axis slider base, and a Z-axis adjusting screw. Several outwardly extending support legs are provided on the outer edge of the Z-axis slider base. The X-axis slider is mounted on the X-axis slider base, the X-axis slider base is mounted on the Y-axis slider, the Y-axis slider is mounted on the Y-axis slider base, the Y-axis slider base is mounted on the Z-axis slider, and the Z-axis slider is mounted on the Z-axis slider base.

2. The device for center positioning of pipelines according to claim 1, characterized in that, The X-axis slider base, Y-axis slider base, and Z-axis slider base are all provided with movable grooves, namely the X-axis movable groove, Y-axis movable groove, and Z-axis movable groove, respectively. The X-axis slider, Y-axis slider, and Z-axis slider are respectively connected in the X-axis movable groove, Y-axis movable groove, and Z-axis movable groove, wherein the Z-axis slider has the same shape as the movable groove of the Z-axis slider base.

3. The device for center positioning of pipelines according to claim 2, characterized in that, An X-axis adjustment knob is provided at one end of the X-axis adjustment screw, a Y-axis adjustment knob is provided at one end of the Y-axis adjustment screw, and a Z-axis adjustment knob is provided at one end of the Z-axis adjustment screw.

4. The device for center positioning of pipelines according to claim 3, characterized in that, The X-axis adjusting screw and the X-axis guide rod are installed in the X-axis slider, and both ends of the X-axis adjusting screw and the X-axis guide rod are connected to the X-axis slider base; one end of the Z-axis adjusting screw is connected to the Z-axis slider.

5. The device for center positioning of pipelines according to claim 4, characterized in that, At least two locking bolts are provided on the outer side of the Z-axis slider base; fixed plates are provided on both sides of the Z-axis slider base, and the Z-axis adjusting screw passes through one of the fixed plates and is connected to the Z-axis slider.

6. The device for center positioning of pipelines according to claim 5, characterized in that, The support leg is a fully threaded screw, and the outer edge of the Z-axis slider base is provided with several screw holes that cooperate with the support leg, and the support leg is connected in the screw holes.

7. The device for center positioning of pipelines according to claim 6, characterized in that, Each of the support legs is provided with a protective sleeve at its outer end, and the included angle between any two adjacent support legs is 60°-120°.

8. The device for center positioning of pipelines according to claim 7, characterized in that, The positioning device also includes several locking nuts, which are mounted on the support legs.

9. A method for operating a device suitable for center positioning of pipelines according to any one of claims 1-8, comprising the steps of: S1. Use laser measuring equipment to measure the circumferential points of the pipeline for the first time, and fit the coordinates of the pipeline center; S2. Install the positioning device at the pipe opening to be tested, adjust the length of the support leg to support the device, and then use the lock nut to lock the support leg. S3. Using the real-time monitoring function of the laser measurement equipment, place the target ball on the center target base, rotate the X, Y, and Z axis adjustment knobs to make the real-time monitoring data as close as possible to the initial fitted center coordinate data, and then use the locking bolts to lock it. S4. When it is necessary to measure or monitor again, simply place the target ball on the central target base to directly measure the data, without having to measure the edge point data multiple times for fitting.

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