CN221019280U - Measuring device for determining elbow assembly welding position - Google Patents
Measuring device for determining elbow assembly welding position Download PDFInfo
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- CN221019280U CN221019280U CN202322577077.2U CN202322577077U CN221019280U CN 221019280 U CN221019280 U CN 221019280U CN 202322577077 U CN202322577077 U CN 202322577077U CN 221019280 U CN221019280 U CN 221019280U
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- 238000003466 welding Methods 0.000 title claims abstract description 55
- 238000006073 displacement reaction Methods 0.000 claims abstract description 72
- 230000000712 assembly Effects 0.000 claims description 21
- 238000000429 assembly Methods 0.000 claims description 21
- 238000002955 isolation Methods 0.000 claims description 9
- 238000005259 measurement Methods 0.000 claims description 9
- 238000010276 construction Methods 0.000 abstract description 6
- 230000008602 contraction Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000005389 magnetism Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000010408 sweeping Methods 0.000 description 1
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Abstract
The utility model relates to a measuring device for determining the assembly welding position of an elbow, and relates to the technical field of pipeline construction. The measuring device for determining the elbow assembly welding position comprises a guide frame component, a reducing telescopic rod component, a measuring center rod and a magneto displacement sensor. Compared with the prior art, the measuring device adopts the non-contact type magneto displacement sensor, improves the measuring precision, lightens the working strength of field operators, and solves the problem that the measuring precision is low because the telescopic length of the measuring center rod of the existing special measuring device for determining the elbow assembly welding position is manually measured on site; the reducing telescopic rod assembly adopts a structure that the connecting rod seat and the connecting rod are synchronously pushed, each group of reducing telescopic rods can extend outwards and retract simultaneously by moving the connecting rod seat, the consistency of the telescopic dimensions of the reducing telescopic rods is ensured, the operation is convenient, and the technical problem that the reducing telescopic rods in the existing special measuring device for determining the assembly welding position of the elbow are independently adjusted and the operation is complex is solved.
Description
Technical Field
The utility model relates to the technical field of pipeline construction, in particular to a measuring device for determining the assembly welding position of an elbow.
Background
The mountain area pipeline construction is complicated because the topography needs the elbow more for the pipeline, to a certain extent, and work efficiency when pipeline segmentation construction is continuous decides the progress of whole engineering. The common practice in the past is that after the straight pipe sections which are welded are subjected to pipe cleaning and line sweeping, the included angle between the two straight pipe sections is measured, the elbow required by connection is prefabricated, and the prefabricated elbow is assembled and welded after the pipeline is put down in a ditch. The existing measuring method and special measuring device for determining the welding position of the elbow effectively solve the technical problem of field measurement of the welding position during elbow assembly welding connection, and have the main problems of low measuring precision and complex operation.
Patent publication number CN102248334B, entitled "measurement method for determining elbow assembly welding position and dedicated measurement device", discloses the following: a measuring method for determining the position of elbow assembly welding and its special measuring device are composed of guide frame, diameter-variable telescopic rod, locking nut, central measuring rod and fastening screw. Firstly, adjusting the telescopic sizes of two groups of variable-diameter telescopic rods arranged on a guide frame according to the pipe diameters of a constructed first pipe section and a constructed second pipe section, so that the radial size of a fixed elbow assembly welding position measuring device is the same as the inner diameter of the constructed pipe section, and then fixing the variable-diameter telescopic rods by using locking nuts; adjusting the extending length of the measuring center rod of the elbow assembly welding position measuring device and fixing the measuring center rod by using a fastening screw, and adjusting the actual extending length of the measuring center rod exposed out of the pipeline to ensure that the actual extending length value is equal to the theoretically calculated extending length value; after the actual overhanging length value is determined, fixing the measuring center rod by using a fastening screw; two groups of elbow assembly welding position measuring devices are arranged in a pipeline: placing the first group of elbow assembly welding position measuring devices into the first pipe section, so that the end points of the guide frames of the elbow assembly welding position measuring devices are level with the pipe orifice of the first pipe section; placing a second elbow assembly welding position measuring device into the second pipe section, so that the vertex of the measuring center rod of the elbow assembly welding position measuring device and the vertex of the measuring center rod of the first elbow assembly welding position measuring device intersect at a point; determining the assembly welding connection position of the elbow and welding: and measuring the length from the pipe orifice of the second pipe section to the end point of the guide frame of the elbow assembly welding position measuring device, drawing a cutting position on the second pipe section after the length value is determined, cutting the pipe section with the length value, determining the elbow assembly welding connection position, and performing elbow assembly welding with the first pipe section and the second pipe section.
The telescopic length of the measuring center rod in the prior art and the patent adopts a method of on-site manual measurement, the measuring precision is not high, the reducing telescopic rod of the measuring device is independently adjusted, the operation is complex, the telescopic dimensional precision is not easy to control, the position size of a prefabricated elbow assembly welding hole is error, the elbow connection assembly welding is difficult, the assembly can be successfully carried out only through grinding, the labor intensity of on-site constructors is high, the construction efficiency is low, and the construction quality is influenced. Therefore, a technical method and a digital display type special measuring device capable of solving the defects are needed.
Disclosure of utility model
The utility model provides a measuring device for determining an elbow assembly welding position, which is used for solving the problem that the measuring accuracy is not high because the telescopic length of a measuring center rod of the existing measuring device special for determining the elbow assembly welding position is manually measured on site.
The utility model provides a measuring device for determining the assembly welding position of an elbow, which comprises:
The guide frame component comprises a guide pipe, n branch pipe components are arranged on the outer wall of the guide pipe at intervals, each branch pipe component comprises m branch pipes positioned on the same plane, one end of each branch pipe is vertically connected with the guide pipe, n is an integer not less than 2, and m is an integer not less than 3;
n reducing telescopic rod assemblies, wherein each reducing telescopic rod assembly comprises m rod pieces which are respectively arranged in m branch pipes of one branch pipe assembly; one end of the rod piece is arranged in the branch pipe, the other end of the rod piece extends to the outside of the branch pipe, and the rod piece can move along the axial direction of the branch pipe;
The measuring center rod is provided with a pointed end at one end, the top point of the pointed end is positioned on the axis of the measuring center rod, and a center hole extending along the axis is formed in the center of the other end; the end of the measuring center rod provided with the center hole is inserted into one end of the catheter, and one end with the tip is arranged outside the catheter; the measuring center rod is coaxially arranged with the catheter and can move along the axial direction of the catheter; the center of the measuring center rod is provided with a center hole extending along the axis; and
A magnetic displacement sensor mounted on the other end of the catheter, the magnetic displacement sensor being for detecting displacement of the measurement center rod in the axial direction of the catheter; the magnetic displacement sensor is connected with a display device and displays the value of the displacement of the measuring center rod in the axial direction of the catheter through the display device.
In one embodiment, the magnetic displacement sensor comprises a displacement sensor measuring rod and a position magnetic ring, wherein the position magnetic ring is fixedly arranged on the inner wall of the measuring center rod, one end of the displacement sensor measuring rod is fixedly arranged on the catheter, and the other end of the displacement sensor measuring rod penetrates through the position magnetic ring and stretches into the center hole; and when the measuring center rod moves along the axial direction of the catheter, the measuring center rod drives the position magnetic ring to move along the axial direction of the measuring rod of the displacement sensor.
In one embodiment, two sides of the position magnetic ring are respectively provided with a magnetism isolating pad, an annular groove is formed in the inner wall of the central hole, and the position magnetic ring and the magnetism isolating pad are fixedly arranged in the annular groove through a check ring for the hole.
In one embodiment, the reducing telescopic rod assembly further comprises a connecting rod seat and m connecting rods; one end of each m connecting rod is hinged with each m rod piece, and the other end of each m connecting rod is hinged with each connecting rod seat; the connecting rod seat is of a cylindrical structure and is sleeved on the outer wall of the guide pipe; the connecting rod seat can slide along the axial direction of the guide pipe so as to drive the rod piece to move along the axial direction of the branch pipe, and the connecting rod seat and the guide pipe can be fixed through a fastener.
In one embodiment, a scale is provided on an end of the rod extending out of the branch pipe along an axial direction of the rod.
The utility model further provides another measuring device for determining the elbow assembly welding position, which is used for solving the problem that the existing measuring device special for determining the elbow assembly welding position is complicated in independent adjustment operation of the variable-diameter telescopic rod.
The utility model provides a measuring device for determining the assembly welding position of an elbow, which comprises:
The guide frame component comprises a guide pipe, n branch pipe components are arranged on the outer wall of the guide pipe at intervals, each branch pipe component comprises m branch pipes positioned on the same plane, one end of each branch pipe is vertically connected with the guide pipe, n is an integer not less than 2, and m is an integer not less than 3;
n reducing telescopic rod assemblies, wherein each reducing telescopic rod assembly comprises m rod pieces, a connecting rod seat and m connecting rods; the m rod pieces are respectively and slidably arranged in m branch pipes of one branch pipe assembly, one end of each rod piece is arranged in each branch pipe, and the other end of each rod piece extends to the outside of each branch pipe; one end of each m connecting rod is hinged with each m rod piece, and the other end of each m connecting rod is hinged with each connecting rod seat; the connecting rod seat is of a cylindrical structure and is sleeved on the outer wall of the guide pipe; the connecting rod seat can slide along the axial direction of the guide pipe so as to drive the rod piece to move along the axial direction of the branch pipe, and the connecting rod seat and the guide pipe can be fixed through a fastener; and
A measuring center rod having one end installed inside one end of the guide pipe and the other end extending to the outside of the guide pipe; the end of the measuring center rod extending to the outside of the catheter is provided with a pointed end, and the vertex of the pointed end is positioned on the axis of the measuring center rod; the measuring center rod is arranged coaxially with the catheter and is movable in the axial direction of the catheter.
In one embodiment, a scale is provided on an end of the rod extending out of the branch pipe along an axial direction of the rod.
In one embodiment, the center of the end of the measuring center rod positioned in the guide pipe is provided with a center hole extending along the axis; the measuring device also comprises a magnetic displacement sensor, wherein the magnetic displacement sensor is arranged at the other end of the catheter and is used for detecting the displacement of the measuring center rod in the axial direction of the catheter; the magnetic displacement sensor is connected with a display device and displays the value of the displacement of the measuring center rod in the axial direction of the catheter through the display device.
In one embodiment, the magnetic displacement sensor comprises a displacement sensor measuring rod and a position magnetic ring, wherein the position magnetic ring is fixedly arranged on the inner wall of the measuring center rod, one end of the displacement sensor measuring rod is fixedly arranged on the catheter, and the other end of the displacement sensor measuring rod penetrates through the position magnetic ring and stretches into the center hole; and when the measuring center rod moves along the axial direction of the catheter, the measuring center rod drives the position magnetic ring to move along the axial direction of the measuring rod of the displacement sensor.
In one embodiment, an annular groove is formed in the inner wall of the central hole, and the position magnetic ring is fixedly arranged in the annular groove through a hole retainer ring; and two sides of the position magnetic ring are respectively provided with a magnetic isolation pad. ,
Compared with the prior art, the measuring device for determining the elbow assembly welding position has the advantages that the non-contact magneto displacement sensor is adopted, the measuring precision is improved, the working intensity of field operators is lightened, and the problem that the measuring precision is low because the telescopic length of the measuring center rod of the existing measuring device special for determining the elbow assembly welding position is manually measured on site is solved. The magnetic displacement sensor is simple to install, easy to operate, stable and reliable. The reducing telescopic rod assembly adopts a structure that the connecting rod seat and the connecting rod are synchronously pushed, the connecting rod seat is moved to enable each group of reducing telescopic rods to simultaneously extend outwards and retract, the telescopic dimensions of the reducing telescopic rods are ensured to be consistent, the operation is convenient, the technical problems that the reducing telescopic rods in the existing special measuring device for determining the assembly welding positions of the elbows are independently adjusted, the operation is complex, the precision of the telescopic dimensions is not easy to control, and the position dimensions of the prefabricated elbows are in error are solved.
Drawings
The utility model will be described in more detail hereinafter on the basis of embodiments and with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of an application state of a measuring device for determining a welding position of an elbow in an embodiment of the utility model;
FIG. 2 is a cross-sectional view at A-A of FIG. 1;
FIG. 3 is a cross-sectional view at B-B of FIG. 1;
FIG. 4 is an enlarged view of the portion I of FIG. 3;
FIG. 5 is a schematic view of an application state of a measuring device for determining the position of elbow assembly welding according to another embodiment of the present utility model;
FIG. 6 is a cross-sectional view at A-A of FIG. 5;
fig. 7 is a cross-sectional view at B-B of fig. 6.
Reference numerals:
1. The first straight pipe section to be assembled and welded; 2. a first measuring device; 3. a fastening screw; 4. the second to-be-assembled welding straight pipe section; 5. a second measuring device; 6. a guide frame member; 7. a 21 lock nut; 8. a rod piece; 9. a magneto-displacement sensor; 10. a displacement sensor measuring rod; 11. measuring a center rod; 12. a magnetic isolation pad; 13. a position magnetic ring; 14. a retainer ring for holes; 15. a second pin; 16. a first pin; 17. a retainer ring for the shaft; 18. a connecting rod; 19. a connecting rod seat; 20. a fixing bolt; 22. a lock nut; 23. a conduit; 24. and a branch pipe.
Detailed Description
The utility model will be further described with reference to the accompanying drawings.
Example 1
As shown in fig. 1 to 4, the present utility model provides a measuring device for determining the assembly welding position of an elbow (hereinafter referred to as measuring device), which mainly comprises a guide frame member 6, a reducing telescopic rod assembly, a measuring center rod 11 and a magneto-induced displacement sensor 9.
The guide frame member 6 comprises a guide pipe 23 and at least two groups of branch pipe components, wherein the two ends of the guide pipe 23 are respectively provided with a measurement center rod 11 and a magneto displacement sensor 9, the at least two branch pipe components are arranged on the outer wall of the guide pipe 23 at intervals, each branch pipe component consists of at least three branch pipes 24 positioned on the same plane, and one end of each branch pipe 24 is vertically connected with the guide pipe 23.
The variable-diameter telescopic rod assemblies are matched with the branch pipe assemblies for use, so that the number of the variable-diameter telescopic rod assemblies is consistent with that of the branch pipe assemblies; each reducing telescopic rod assembly comprises a plurality of rod pieces 8, one end of each rod piece 8 is arranged in a branch pipe 24, the other end of each rod piece 8 extends to the outside of the branch pipe 24, and the rod pieces 8 can move along the axial direction of the branch pipe 24; these rods 8 cooperate with the branch pipes 24, so that the number of rods 8 in each variable-diameter telescopic rod assembly corresponds to the number of branch pipes 24 in the corresponding branch pipe assembly. For example, in the measuring device shown in fig. 1 to 4, two branch pipe assemblies are provided at intervals on the outer wall of the conduit 23, each of the branch pipe assemblies is composed of 3 branch pipes 24 located on the same plane, and preferably the 3 branch pipes 24 are uniformly distributed in the circumferential direction of the conduit 23. The diameter-variable telescopic rod assemblies are arranged in two, each diameter-variable telescopic rod assembly comprises 3 rod pieces 8, and the 3 rod pieces 8 are respectively arranged in 3 branch pipes 24 of the same branch pipe assembly. One end of the rod 8 is inserted into the branch pipe 24, and the rod 8 can move along the axial direction of the branch pipe 24; the other end of the rod extends outside the branch 24 for contacting the inner wall of the pipe to be welded. The position of the rod 8 on the branch 24 can be fixed by means of the lock nut 7. In some embodiments, the end of the rod 8 extending beyond the branch 24 is provided with a graduated scale along the axial direction of the rod 8, by means of which the radial dimensions of the measuring device can be visually displayed.
One end of the measuring center rod 11 is provided with a pointed end, and the pointed point is positioned on the axis of the measuring center rod 11; the center position of the other end of the measurement center rod 11 is provided with a center hole extending along the axis thereof. The end of the measuring center rod 11 provided with a center hole is inserted into the guide tube 23, the end with a pointed tip is arranged outside the guide tube 23, and the measuring center rod 11 is coaxially arranged with the guide tube 23 and can move along the axial direction of the guide tube 23. The guide tube 23 is provided with a fastening screw 3, and the position of the measuring center rod 11 on the guide tube 23 can be fixed by the fastening screw 3, so that the length of the measuring center rod 11 extending out of the guide tube 23 is fixed.
The magnetic displacement sensor 9 can be installed at one end of the conduit 23 far away from the measuring center rod 11 through threads, the magnetic displacement sensor 9 is used for detecting the displacement of the measuring center rod 11 in the axial direction of the conduit 23, the magnetic displacement sensor 9 is connected with a display device through a cable, and the value of the displacement of the measuring center rod 11 in the axial direction of the conduit 23 is displayed through the display device. In some embodiments, as shown in fig. 4, the magnetic displacement sensor 9 includes a measuring rod 10 of the displacement sensor and a position magnetic ring 13, an annular groove is formed on the inner wall of a central hole of the measuring central rod 11, two magnetic isolation pads 12 are respectively arranged on two sides of the position magnetic ring 13, and the position magnetic ring 13 and the two magnetic isolation pads 12 are fixedly arranged in the annular groove through a check ring 14 for holes; one end of the displacement sensor measuring rod 10 is fixedly connected with the guide pipe 23, and the other end of the displacement sensor measuring rod penetrates through the position magnetic ring 13 and stretches into the central hole. When the measuring center rod 11 moves axially along the guide pipe 23, the position magnetic ring 13 is driven to move axially along the measuring rod 10 of the displacement sensor, a real-time displacement output signal is generated and transmitted to a display through a cable, and accurate measurement digital display of the measuring device is realized.
Two measuring devices are needed during assembly welding, the two measuring devices are respectively arranged in the pipelines of the two straight pipe sections to be assembled and welded at the two ends of the same elbow, one measuring device is a first measuring device 2 arranged in the first straight pipe section 1 to be assembled and welded, and the other measuring device is a second measuring device 5 arranged in the second straight pipe section 4 to be assembled and welded. Before the two measuring devices are used, the expansion and contraction amount of rod pieces 8 in two variable-diameter expansion rod assemblies arranged on a guide frame member 6 is firstly adjusted according to the pipe diameters of two to-be-assembled and welded straight pipe sections, the expansion and contraction amount of each rod piece 8 is adjusted, the radial size of the measuring devices is the same as the inner diameter of the corresponding to-be-assembled and welded straight pipe sections, and then the rod pieces 8 are fixed by locking nuts 7.
The actual extension L of the measuring center rod 11 is adjusted such that the value L (l=om=on, point o is the measuring center rod 11 apex, point m is the end point of the guide frame member 6 of the first measuring device 2, point n is the end point of the guide frame member 6 of the second measuring device 5) is equal to the theoretically calculated extension value (theoretical calculation of L value: l=r x Sin α/2, where R is the bend radius of the bend and α is the bend angle of the bend). After the actual extension L is determined, the measuring center rod 11 is locked by the fastening screw 3.
The first measuring device 2 is placed in the first straight pipe section 1 to be assembled and welded, so that the end point m of the guide frame member 6 of the first measuring device 2 is flush with the pipe orifice of the first straight pipe section 1 to be assembled and welded.
And (3) placing the second measuring device 5 into the second straight pipe section 4 to be assembled and welded, so that the vertex of the central rod 11 measured by the second measuring device 5 and the vertex of the central rod 11 measured by the first measuring device 2 intersect at an o point, and if the vertex cannot intersect at the o point, adjusting the positions of the two straight pipe sections to be assembled and welded and the vertex of the two measuring devices intersect at the o point, thereby ensuring that the axial leads of the first straight pipe section 1 to be assembled and welded and the second straight pipe section 4 to be assembled and welded are in the same plane.
And measuring an L1 value (L1 value is the length from the pipe orifice of the second straight pipe section 4 to be assembled and welded to the end point n of the guide frame member 6 of the second measuring device 5) on the second straight pipe section 4 to be assembled and welded, and after the L1 value is determined, scribing a cutting position on the second straight pipe section 4 to be assembled and welded, cutting the L1 pipe section, determining the elbow assembly and welding connection position, and performing elbow connection assembly and welding.
Example two
As shown in fig. 5 to 7, the present utility model provides a measuring device for determining the assembly welding position of an elbow (hereinafter referred to as measuring device), which mainly comprises a guide frame member 6, a reducing telescopic rod assembly, a measuring center rod 11 and a magneto-induced displacement sensor 9.
The guide frame member 6 comprises a guide pipe 23 and at least two groups of branch pipe components, wherein the two ends of the guide pipe 23 are respectively provided with a measurement center rod 11 and a magneto displacement sensor 9, the at least two branch pipe components are arranged on the outer wall of the guide pipe 23 at intervals, each branch pipe component consists of at least three branch pipes 24 positioned on the same plane, and one end of each branch pipe 24 is vertically connected with the guide pipe 23.
The reducing telescopic rod assemblies are matched with the branch pipe assemblies for use, so that the number of the reducing telescopic rod assemblies is consistent with the number of the branch pipe assemblies. Each variable diameter telescopic rod assembly comprises a plurality of rod pieces 8, a plurality of connecting rods 18 and a connecting rod seat 19. The rod pieces 8 in each variable-diameter telescopic rod assembly are matched with the corresponding branch pipes 24 in the corresponding branch pipe assembly one by one, so that the number of the rod pieces 8 in the single variable-diameter telescopic rod assembly is consistent with the number of the branch pipes 24 in the corresponding branch pipe assembly; the connecting rods 18 are used for connecting the corresponding rod pieces 8 to the base, and the number of the connecting rods 18 is consistent with that of the rod pieces 8; for example, in the measuring device shown in fig. 5 to 7, two branch pipe assemblies are provided at intervals on the outer wall of the conduit 23, each of the branch pipe assemblies is composed of 4 branch pipes 24 located on the same plane, and preferably the 4 branch pipes 24 are uniformly distributed in the circumferential direction of the conduit 23. The two reducing telescopic rod assemblies are arranged, each reducing telescopic rod assembly comprises 4 rod pieces 8 and 4 connecting rods 18, the 4 rod pieces 8 are respectively arranged in 4 branch pipes 24 of the same branch pipe assembly, and the 4 rod pieces 8 are respectively connected with the connecting rod seat 19 through the 4 connecting rods 18.
One end of the rod member 8 is slidably mounted in a corresponding branch pipe 24, and the end of the rod member 8 is connected with one end of a connecting rod 18 through a first pin 16, the other end of the connecting rod 18 is connected with a connecting rod seat 19 through a second pin 15, and is fixed by a shaft retainer ring 17; the other end of the rod 8 extends outside the branch pipe 24 for contacting the inner wall of the pipe to be welded. The connecting rod seat 19 is of a cylindrical structure, the connecting rod seat 19 is sleeved on the outer wall of the guide pipe 23, the connecting rod seat 19 is provided with a fixing bolt 20 and a locking nut 21, and the connecting rod seat 19 and the guide pipe 23 can be fastened through the fixing bolt 20 and locked through the locking nut 21. The connecting rod seat 19 can slide along the axial direction of the guide pipe 23 so as to drive the rod piece 8 to move along the axial direction of the branch pipe 24, so that the rod piece 8 of each group of variable-diameter telescopic rod assemblies can extend and retract simultaneously, and the radial dimension of the measuring device can be quickly adjusted. In some embodiments, the end of the rod 8 extending beyond the branch 24 is provided with a graduated scale along the axial direction of the rod 8, by means of which the radial dimensions of the measuring device can be visually displayed.
One end of the measuring center rod 11 is provided with a pointed end, and the pointed point is positioned on the axis of the measuring center rod 11; the center position of the other end of the measurement center rod 11 is provided with a center hole extending along the axis thereof. The end of the measuring center rod 11 provided with a center hole is inserted into the guide tube 23, the end with a tip is arranged outside the guide tube 23, and the measuring center rod 11 is arranged coaxially with the guide tube 23 and can move along the axial direction of the guide tube 23. The guide tube 23 is provided with a lock nut 22, by means of which lock nut 22 the position of the measuring center rod 11 on the guide tube 23 can be fixed, so that the length of the measuring center rod 11 extending outside the guide tube 23 is fixed.
The magnetic displacement sensor 9 can be installed at one end of the conduit 23 far away from the measuring center rod 11 through threads, the magnetic displacement sensor 9 is used for detecting the displacement of the measuring center rod 11 in the axial direction of the conduit 23, the magnetic displacement sensor 9 is connected with a display device through a cable, and the value of the displacement of the measuring center rod 11 in the axial direction of the conduit 23 is displayed through the display device. In some embodiments, as shown in fig. 4, the magnetic displacement sensor 9 includes a measuring rod 10 of the displacement sensor and a position magnetic ring 13, an annular groove is formed on the inner wall of a central hole of the measuring center rod 11, two magnetic isolation pads 12 are respectively arranged on two sides of the position magnetic ring 13, and the position magnetic ring 13 and the two magnetic isolation pads 12 are fixedly arranged in the annular groove through a check ring 14 for holes. One end of the displacement sensor measuring rod 10 is fixedly connected with the guide pipe 23, and the other end of the displacement sensor measuring rod penetrates through the position magnetic ring 13 and stretches into the central hole. When the measuring center rod 11 moves axially along the guide pipe 23, the position magnetic ring 13 is driven to move axially along the measuring rod 10 of the displacement sensor, a real-time displacement output signal is generated and transmitted to a display through a cable, and accurate measurement digital display of the measuring device is realized.
Two measuring devices are needed during assembly welding, the two measuring devices are respectively arranged in the pipelines of the two straight pipe sections to be assembled and welded at the two ends of the same elbow, one measuring device is a first measuring device 2 arranged in the first straight pipe section 1 to be assembled and welded, and the other measuring device is a second measuring device 5 arranged in the second straight pipe section 4 to be assembled and welded. Before the two measuring devices are used, the expansion and contraction amount of the rod pieces 8 in the two variable-diameter telescopic rod assemblies arranged on the guide frame member 6 is firstly adjusted according to the pipe diameters of the two to-be-assembled and welded straight pipe sections, and the connecting rod seat 19 can be moved along the axial direction of the guide pipe 23 to simultaneously adjust the expansion and contraction amount of the 4 rod pieces 8, so that the radial dimension of the measuring devices is the same as the inner diameter of the corresponding to-be-assembled and welded straight pipe sections, and then the connecting rod seat 19 is fastened by the fixing bolt 20 and the locking nut 21 is locked.
The actual extension L of the measuring center rod 11 is adjusted such that the value L (l=om=on, point o is the measuring center rod 11 apex, point m is the end point of the guide frame member 6 of the first measuring device 2, point n is the end point of the guide frame member 6 of the second measuring device 5) is equal to the theoretically calculated extension value (theoretical calculation of L value: l=r x Sin α/2, where R is the bend radius of the bend and α is the bend angle of the bend). After the actual extension L is determined, the measuring center rod 11 is locked by the lock nut 22.
The first measuring device 2 is placed in the first straight pipe section 1 to be assembled and welded, so that the end point m of the guide frame member 6 of the first measuring device 2 is flush with the pipe orifice of the first straight pipe section 1 to be assembled and welded.
And (3) placing the second measuring device 5 into the second straight pipe section 4 to be assembled and welded, so that the vertex of the central rod 11 measured by the second measuring device 5 and the vertex of the central rod 11 measured by the first measuring device 2 intersect at an o point, and if the vertex cannot intersect at the o point, adjusting the positions of the two straight pipe sections to be assembled and welded and the vertex of the two measuring devices intersect at the o point, thereby ensuring that the axial leads of the first straight pipe section 1 to be assembled and welded and the second straight pipe section 4 to be assembled and welded are in the same plane.
And measuring an L1 value (L1 value is the length from the pipe orifice of the second straight pipe section 4 to be assembled and welded to the end point n of the guide frame member 6 of the second measuring device 5) on the second straight pipe section 4 to be assembled and welded, and after the L1 value is determined, scribing a cutting position on the second straight pipe section 4 to be assembled and welded, cutting the L1 pipe section, determining the elbow assembly and welding connection position, and performing elbow connection assembly and welding.
While the utility model has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present utility model is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.
Claims (10)
1. A measurement device for determining the position of an elbow assembly weld, comprising:
The guide frame component comprises a guide pipe, n branch pipe components are arranged on the outer wall of the guide pipe at intervals, each branch pipe component comprises m branch pipes positioned on the same plane, one end of each branch pipe is vertically connected with the guide pipe, n is an integer not less than 2, and m is an integer not less than 3;
n reducing telescopic rod assemblies, wherein each reducing telescopic rod assembly comprises m rod pieces which are respectively arranged in m branch pipes of one branch pipe assembly; one end of the rod piece is arranged in the branch pipe, the other end of the rod piece extends to the outside of the branch pipe, and the rod piece can move along the axial direction of the branch pipe;
The measuring center rod is provided with a pointed end at one end, the top point of the pointed end is positioned on the axis of the measuring center rod, and a center hole extending along the axis is formed in the center of the other end; the end of the measuring center rod provided with the center hole is inserted into one end of the catheter, and one end with the tip is arranged outside the catheter; the measuring center rod is coaxially arranged with the catheter and can move along the axial direction of the catheter; the center of the measuring center rod is provided with a center hole extending along the axis; and
A magnetic displacement sensor mounted on the other end of the catheter, the magnetic displacement sensor being for detecting displacement of the measurement center rod in the axial direction of the catheter; the magnetic displacement sensor is connected with a display device and displays the value of the displacement of the measuring center rod in the axial direction of the catheter through the display device.
2. The measurement device for determining the assembly welding position of an elbow according to claim 1, wherein the magneto-induced displacement sensor comprises a displacement sensor measuring rod and a position magnetic ring, the position magnetic ring is fixedly arranged on the inner wall of the measurement center rod, one end of the displacement sensor measuring rod is fixedly arranged on the guide pipe, and the other end of the displacement sensor measuring rod penetrates through the position magnetic ring and stretches into the center hole; and when the measuring center rod moves along the axial direction of the catheter, the measuring center rod drives the position magnetic ring to move along the axial direction of the measuring rod of the displacement sensor.
3. The measuring device for determining the assembly welding position of the elbow according to claim 2, wherein magnetic isolation pads are respectively arranged on two sides of the position magnetic ring, an annular groove is formed in the inner wall of the central hole, and the position magnetic ring and the magnetic isolation pads are fixedly arranged in the annular groove through check rings for holes.
4. The measuring device for determining the assembly welding position of an elbow according to claim 3, wherein the reducing telescopic rod assembly further comprises a connecting rod seat and m connecting rods; one end of each m connecting rod is hinged with each m rod piece, and the other end of each m connecting rod is hinged with each connecting rod seat; the connecting rod seat is of a cylindrical structure and is sleeved on the outer wall of the guide pipe; the connecting rod seat can slide along the axial direction of the guide pipe so as to drive the rod piece to move along the axial direction of the branch pipe, and the connecting rod seat and the guide pipe can be fixed through a fastener.
5. A measuring device for determining the assembly welding position of an elbow according to claim 3, wherein the end of the rod extending out of the branch pipe is provided with a graduated scale along the axial direction of the rod.
6. A measurement device for determining the position of an elbow assembly weld, comprising:
The guide frame component comprises a guide pipe, n branch pipe components are arranged on the outer wall of the guide pipe at intervals, each branch pipe component comprises m branch pipes positioned on the same plane, one end of each branch pipe is vertically connected with the guide pipe, n is an integer not less than 2, and m is an integer not less than 3;
n reducing telescopic rod assemblies, wherein each reducing telescopic rod assembly comprises m rod pieces, a connecting rod seat and m connecting rods; the m rod pieces are respectively and slidably arranged in m branch pipes of one branch pipe assembly, one end of each rod piece is arranged in each branch pipe, and the other end of each rod piece extends to the outside of each branch pipe; one end of each m connecting rod is hinged with each m rod piece, and the other end of each m connecting rod is hinged with each connecting rod seat; the connecting rod seat is of a cylindrical structure and is sleeved on the outer wall of the guide pipe; the connecting rod seat can slide along the axial direction of the guide pipe so as to drive the rod piece to move along the axial direction of the branch pipe, and the connecting rod seat and the guide pipe can be fixed through a fastener; and
A measuring center rod having one end installed inside one end of the guide pipe and the other end extending to the outside of the guide pipe; the end of the measuring center rod extending to the outside of the catheter is provided with a pointed end, and the vertex of the pointed end is positioned on the axis of the measuring center rod; the measuring center rod is arranged coaxially with the catheter and is movable in the axial direction of the catheter.
7. The measuring device for determining the assembly welding position of the elbow according to claim 6, wherein a graduated scale is arranged on one end of the rod extending out of the branch pipe along the axial direction of the rod.
8. The device for determining the assembly welding position of an elbow according to claim 6, wherein the center of the end of the measuring center rod located in the conduit is provided with a center hole extending along the axis; the measuring device also comprises a magnetic displacement sensor, wherein the magnetic displacement sensor is arranged at the other end of the catheter and is used for detecting the displacement of the measuring center rod in the axial direction of the catheter; the magnetic displacement sensor is connected with a display device and displays the value of the displacement of the measuring center rod in the axial direction of the catheter through the display device.
9. The measurement device for determining the assembly welding position of an elbow according to claim 8, wherein the magnetic displacement sensor comprises a displacement sensor measuring rod and a position magnetic ring, the position magnetic ring is fixedly arranged on the inner wall of the measurement center rod, one end of the displacement sensor measuring rod is fixedly arranged on the guide pipe, and the other end of the displacement sensor measuring rod penetrates through the position magnetic ring and stretches into the center hole; and when the measuring center rod moves along the axial direction of the catheter, the measuring center rod drives the position magnetic ring to move along the axial direction of the measuring rod of the displacement sensor.
10. The measuring device for determining the assembly welding position of the elbow according to claim 9, wherein an annular groove is formed in the inner wall of the central hole, and the position magnetic ring is fixedly arranged in the annular groove through a check ring for the hole; and two sides of the position magnetic ring are respectively provided with a magnetic isolation pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322577077.2U CN221019280U (en) | 2023-09-21 | 2023-09-21 | Measuring device for determining elbow assembly welding position |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322577077.2U CN221019280U (en) | 2023-09-21 | 2023-09-21 | Measuring device for determining elbow assembly welding position |
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| Publication Number | Publication Date |
|---|---|
| CN221019280U true CN221019280U (en) | 2024-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322577077.2U Active CN221019280U (en) | 2023-09-21 | 2023-09-21 | Measuring device for determining elbow assembly welding position |
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| Country | Link |
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| CN (1) | CN221019280U (en) |
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2023
- 2023-09-21 CN CN202322577077.2U patent/CN221019280U/en active Active
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